2016年11月30日星期三

Advanced insulation material ceramic fiber blanket that used for industrial furnace

Advanced insulation material ceramic fiber blanket that used for industrial furnace
Advanced insulation material ceramic fiber blanket that used for industrial furnace
Ceramic fiber blanket, also known as aluminum silicate fiber blanket. Because one of the main components is alumina, and alumina is the main component of ceramic, so it is called ceramic fiber blanket. Ceramic fiber blanket is made by special aluminum silicate ceramic fiber filament with a special double-sided acupuncture process. Double-sided acupuncture process greatly improved the degree of fiber interwoven, tensile strength and surface roughness. Fiber blanket does not contain any organic binder, that is to make sure the ceramic fiber blanket have good stability at high temperature or low temperature.

Ceramic fiber blanket, with white color, regular size, does not contain any binding agent, and the refractory temperature is 950-1400 Degrees Celsius. It has low thermal conductivity, low heat capacity, excellent chemical stability, thermal shock resistance, tensile strength, and sound absorption. In neutral, oxidizing atmosphere, ceramic fiber blanket still could maintain good tensile strength, toughness and refractory fiber board structure after long-term use, is an excellent Insulating material.

Ceramic fiber blanket can be used in aerospace, steel, petrochemical high temperature insulation; military equipment fire insulation; industrial kiln, heating device wall lining insulation; high temperature equipment insulation; high temperature pipe insulation; electrical components thermal resistance; raw material of gasket; module, folding block.

Article source:
http://www.yilongrefractory.com/news/Advanced%20insulation%20material%20ceramic%20fiber%20blanket%20that%20used%20for%20industrial%20furnace.html
E-mail:sales8@chinaelong.com

2016年11月27日星期日

Fire - resistant fire shutter doors Fire - resistant insulation Fire cloth

Cement furnace rotary kiln insulation board; various types of heat treatment furnace fiber insulation; clay insulating bricks tunnel kiln flat ceiling construction; industrial furnace full-fiber insulation; castable high temperature plastic; light insulating refractory cement material; ceramic fiber module folding block; ceramic fiber shell, pouring Crossing and other special-shaped vacuum products;

Various types of 304,310 anchor; conventional and special-shaped module, folding block; lining design; fire; selection of technical guidance; lining material; rock wool; asbestos; glass fiber; slag cotton; . My company to undertake a variety of high-temperature equipment products

Custom, high insulating brick technical advisory guidance, construction and renovation projects.
Ceramic fiber cloth with rope Product Description: It is made of ceramic fiber yarn and silk yarn reinforcement (fiberglass or alloy steel wire) made of ceramic fiber cloth, belt, rope and other high temperature products. Products with high temperature resistance, good flexibility,insulation products  machinability, not only has a high temperature

Thermal insulation properties, both the flexibility of ordinary textiles.
Features: Excellent clay insulating bricks properties; excellent tensile properties; excellent high temperature strength; excellent electrical insulation properties; excellent acid, oil, water vapor corrosion; low thermal conductivity; non-toxic non-toxic asbestos , No adverse effects on the environment.
Typical applications: petrochemical industry, soft tube furnace tube; industrial furnace curtain, door seal; high temperature pipe, container insulating castable; cable or fuel pipeline protection; high temperature protection, composite materials; fire package, fire shutter doors.

2016年11月21日星期一

Characteristics and Application of Refractory Castables with High Aluminum and Low Cement Content

Low Cement Castable
Low cement castable can be widely used for those industrial furnace's working lining, permanent lining( working temperature under 1400c), such as little refining Ladle cover, Ladle & Tundish permanent layer, heating furnace working wall, top and bottom. Blast furnace body, Hot metal ladle permanent layer.
The traditional refractories castable is made of refractory aggregate and high alumina cement. During the preparation process, the particle gradation of the fine aggregate fraction was not well designed. Cement particles are also coarse (specific surface area is generally 3000cm2 / g or so), the amount of cement is generally 15 to 25 percent, and the construction water consumption is 10 to 15 percent. Coupled with the amount of cement and more coarse particles, so that the cement can not be fully hydrated, resulting in poor performance of castables.

Low cement castable refractory castable is to overcome the shortcomings of the traditional refractory castable, the use of lower cement content, ultrafine powder technology, the correct design of aggregates push collection, and the use of highly efficient surface-active additives and other comprehensive technical measures prepared from, With the traditional refractory material pouring

High solidification rate, good volume stability, after drying and calcination, the volume shrinkage is small "and so on. It has the characteristics of low cement content, high compactness and low porosity, high normal temperature curing strength, good volume stability.

"GJ-180 high-strength refractory company castable" is based on fused white fused alumina as aggregate with pure calcium aluminate cement as the binder made of. The highest temperature of use of this casting material to 1800 ℃, 1400 ℃ under the hot state of the flexural strength of 7.4MPa, at high temperatures also has a good Wear resistance. It is suitable for the new kiln dry kiln cement kiln, three-channel coal nozzle and other parts used.

"GJ-18S castable" is fused white corundum as aggregate, it is a low cement content of refractory castable, the castable has a high mechanical strength and erosion resistance, erosion resistance, the maximum temperature of 1600 ℃ , Depending on its performance, this castable is suitable 1000 ~ 1400 ℃, the impact of serious wear and tear of large cement kiln mouth, multi-cylinder cooler elbow and other parts used.

"LC-160 castable" is a low-cement refractory castable, is based on high alumina bauxite clinker aggregate, pure calcium aluminate cement as a binder prepared, suitable for small and medium-sized dry kiln cement kiln mouth, Cooler elbow parts apply.

"GJ-15B (or GJ-15A) castable" commonly known as alkali-resistant high-alumina low-cement refractory castable, refractory brick for sale, it is through the matrix composition of the adjustment and control of preparation, with high mechanical strength, alkali corrosion, Temperature of 1500 ° C, suitable for cement production

The original, the fuel contains alkali, sulfur, chlorine high number of large dry kiln.

Refractory Balls---Used for HBS Regenerator---Changxing Refractory material

Refractory Balls---Used for HBS Regenerator---Changxing Refractory material
Refractory Balls---Used for HBS Regenerator---Changxing Refractory material
Refractory Balls Used for HBS Regenerator

Application:
Application of regenerator in gas burning industrial furnace combustion system

Introduction and Advantages:
According to the structure of regenerator different, many kinds of products, good thermal shock resistance, large heat storage capacity, high strength, easy to clean, can be repeated use.

Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=82
E-mail:sales8@chinaelong.com

2016年11月16日星期三

Precautions and repair measures of masonry refractory concrete precast block

Masonry refractories concrete prefabricated block must pay attention to the following matters:
1) refractory concrete prefabricated blocks of brick masonry joints for the 5mm ~ 10mm.
2) Masonry mud used should be consistent with the pre-block material.
3) masonry should be on the bottom surface of the prefabricated block on the surface of pulp, and then re-line. When hanging, should also be in the corresponding side of the pulp.
4) After the completion of each layer of prefabricated blocks, fill the joints in the refractory brick concrete.
5) cut off the ring, tie or fill in the vicinity of mud.
6) dome arch, the arch should try to tighten the sides.
7) masonry prefabricated block, such as the gap is too large, can be used in place of cast-in-place refractory castable concrete or fire brick plug.
silica ramming mass concrete repair methods:
  1) crack repair lining lining cracks, may not repair. But the emergence of thick cracks, cracks should be looking at the location, analysis of whether the impact on the lining life, can not form a large peeling. Where important parts, must be repaired.
Repair, first with water to wet. Usually in the thick stitch filled with homogeneous refractory material concrete, tapping formation. If the seam can be repaired into V-shaped re-repair, the effect is better. If a large slit appears in the lining, two slightly larger round holes can be cut at the two ends of the seam

, Re-block, so to prevent the spread of further expansion of the crack.
  2) peeling patching repair, should first clean up the peeling, sprinkle some water, and then the preparation of good homogeneous refractory concrete fill. Be careful when patching tightly wiping light. Repair to pay attention to the oven, the time is about 12h, then you can put into use.

Steel fiber reinforced low cement refractory castable

A heat-resistant steel fiber of a certain size is added to a castable refractories in a mixture consisting of a refractory material aggregate, a binder and an admixture to become

a steel fiber reinforced refractory castable. Compared with castables without heat-resistant steel fireclay refractories, the castable has the following characteristics:
1, can inhibit castable in the curing, baking and high temperature use in the contraction;
2, to improve the toughness of castable, anti-mechanical impact and mechanical strength;
3, to improve the thermal shock resistance of castable;
4, to prevent the cast material generated within the micro-cracks in the thermal stress and mechanical stress under the expansion or extension caused by the occurrence of fracture or peeling.

2016年11月14日星期一

Tundish Impact Plate----Changxing Refractory Material---used for steel plant

Tundish Impact Plate

Tundish Impact Plate----Changxing Refractory Material---used for steel plant
Tundish Impact Plate----Changxing Refractory Material---used for steel plant
Introduction:
An impact plate formed from a refractory material for reducing the turbulence of a molten metal poured therein. The impact pad has a plurality of sidewalls, each sidewall having a plurality of spherically shaped portions. The spherically shaped portions disperse the molten metal in a variety of directions.

Advantages:
They are characterized by good slag resistance, high hot strength and long service life. Such products can be rationally matched according to requirements by processing, service time and cleaness of molten steel.

Application:
good thermal shock resistance, high temperature resistance, good erosion resistance and long service time.

Contect  source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=56
E-mail:sales8@chinaelong.com

2016年11月7日星期一

New requirements of second generation dry process cement for refractory

China's cement industry developed rapidly, the output from the early liberation of the development of 620,000 t in 2015 to 2.35 billion t, from 1985 onwards 31 consecutive years of production and consumption ranked first in the world, the new dry cement production technology and equipment level Has been close to the international advanced level, localization of equipment has been fully meet the needs of the cement industry. However, excess capacity of cement clinker in China, cement companies operating efficiency and low efficiency. Energy saving, reduce costs as a cement enterprise to enhance the economic benefits of the inevitable. China Building Materials Federation first proposed the cement industry should vigorously develop the "second-generation new dry cement technology", its purpose is to reduce the energy consumption of cement production and enhance business efficiency. refractory material as an indispensable lining process of cement sintering material, is the second generation of new dry process cement material support conditions. The second generation of new dry cement technology on the refractory materials put forward new requirements, and refractory configuration technology should also be compatible with.
Cement industry, the initial requirements of refractories materials to meet the protection of the metal shell of a single function; and the development of the second generation of new dry cement technology, requiring refractories with energy saving, green, longevity efficient, safe and stable and other functions .

Energy saving
The second generation of dry cement technology in the cement clinker heat consumption standards for the 650 cal  kg-1, and a large part of the calcination process of cement heat through the thermal radiation of the equipment surface dissipation. Therefore, the refractory company material as the basis of all high-temperature equipment lining material, should not only have good performance, but also should take into account the energy-saving insulation properties.
Green
The chromium content in the cement shall not be greater than 10.00 mg  kg-1. According to statistics, the water-soluble chromium (Ⅵ) in cement mainly comes from the fuel and raw materials of cement raw materials, crushing and grinding media, refractory materials (magnesia-chrome bricks) and chromium-containing wastes. For most cement companies, refractory high insulating brick (magnesia-chrome brick) is the most important source of water-soluble chromium (Ⅵ). Magnesia-chrome bricks because of good thermal shock resistance, high temperature resistance and hanging kiln skin capacity, is still the majority of domestic cement rotary kiln for the use of high-temperature zone. According to statistics, the domestic cement enterprises average per ton of cement clinker consumption of high-temperature zone with alkaline refractories of about 244 g, assuming that half of the bricks into soluble chromium (Ⅵ) and into the cement clinker, the cement clinker Soluble chromium (Ⅵ) content will reach 10.98mg  kg-1. Therefore, in the cement industry to eliminate the use of magnesia-chrome brick has been in the industry consensus, the major domestic basic refractories enterprises have developed alternative to magnesia-chrome brick refractory products used in high-quality, and in the country has been rapidly applied.
Longevity and high efficiency
New dry cement technology continues to move in the direction of large-scale development, the current Nissan 5000t and above cement clinker production line has become the minimum requirements of new projects of cement companies, Nissan 10000t or 1200t cement clinker production line in China has reached more than 10 articles. Large-scale cement production line requires the quality and stability of refractories alumina brick should be a corresponding substantial increase in long-life, high-performance refractories in the country to promote rapidly, the current domestic cement production line refractories have been slowly from the "overhaul a year "To" three years of two overhaul, "the goal of development.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

Special - shaped refractory bricks of the insulation refractory bricks

With regular shape of the thermal insulation products. Belongs to the light insulation refractory material. The common characteristics of these materials is the small bulk density, light weight, low thermal conductivity. But the strength is low, high-temperature heavy burn contraction larger.
Specific type of firebrick high insulating brick Category:
Usually divided into three types: (1) ordinary insulation bricks, the use of temperature below 1000 ℃, mainly diatomaceous earth bricks, inflated razor stone bricks, expanded perlite bricks, thermal equipment for thermal insulation. (2) fire-resistant insulation bricks, the use of temperature between 1000-1500 ℃, mainly light clay bricks, light silica bricks, light aluminum bricks and so on. (3) high temperature Insulating Bricks, the use of temperature above 1500 ℃, and can be directly used as high-temperature furnace lining, mainly light corundum bricks, alumina hollow ball products and zirconia hollow ball products.
Ultra-high temperature insulation brick:
The ultra-high-temperature heat insulation bricks are made of at least one heat-resistant inorganic material such as silica, alumina, lithium oxide, magnesium oxide and viscose in the form of fibrous material such as silicon fiber, aluminum fiber, carbon fiber, nitrogen fiber and silicon carbide fiber Knot as raw materials, formed by sintering. This lightweight brick high strength, excellent heat resistance and thermal conductivity of ultra-high temperature, easy processing, suitable for spaceflight devices, industrial furnaces and so on.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

2016年11月6日星期日

Refractory brick - --clay brick---Basic information


Properties of clay brick:
Clay brick is a weak acid refractory products, resistant to acidic slag and acid gas erosion, resistance to alkaline substances somewhat less. Clay refractory brick thermal performance is good, resistant to hot and cold.


The use of clay brick:
Clay, High Alumina Insulating Bricks is mainly used for clay brick building, blast furnace, hot stove, iron furnace, open hearth furnace and electric furnace and other low temperature part of the use of fireclay refractories. Bricks, bricks for casting systems, heating furnaces, heat treatment furnaces, combustion chambers, flues and chimneys. Clay bricks are especially suitable for large temperature changes.

http://www.yilongrefractory.com/ProductServletOne?id1=1&id=14

2016年11月4日星期五

Basic information on fire - resistant aluminum silicate cotton for industrial furnaces

First, the industrial furnace fire-resistant high insulating brick with fire-resistant cotton is the corresponding fire-resistant material 20mm thick needle-punched blankets made by finishing, size neat, in full compliance with national standards, strict control of the plastic tube in the middle, acupuncture blanket thickness Uniform, all for the fine acupuncture blanket, unlike some enterprises in the middle of the module doping dross blankets, blankets, acupuncture blanket alumina brick slag ball content is low, low degree of hand, used to do all the pre-acupuncture blanket blanket, And there are loading tools to ensure the arrival of the module when the flatness of the company can also provide module installation CD-ROM and supporting the installation of the module tools can cash delivery, I feel dissatisfied may not. Jinan Shengyang fire-resistant ladle slide gate cotton has a good effect of fire-resistant insulation and insulation to improve the overall fire-resistant insulation kiln, and promote the progress of the furnace masonry technology. Classification temperature 1050-1400 ℃.
Note: a variety of fire-resistant cotton, is the corresponding material acupuncture blanket, according to the fiber component structure, size, made in the special machinery. In the processing process, are to maintain a certain percentage of compression to ensure that fire-resistant cotton lining lining is completed, the fire-resistant cotton in different directions of expansion, so that between the fire-resistant cotton into a seamless seamless with each other, Various forms of anchors clay insulating bricks are directly attached to the steel plate anchor bolts of the industrial furnace shell.
Second, the product features: excellent chemical stability; excellent thermal stability; excellent flexibility, the module in the pre-pressure state, in the lining after the completion of the expansion of the module so that the lining seamless and can compensate for fiber lining shrink, Improve the thermal insulation properties of fiber lining, the overall performance is good; excellent thermal stability and thermal shock resistance; ceramic fiber module installed quickly, and anchors set in the cold wall lining, can reduce the anchor material requirements. According to the customer for different furnace insulation design and construction training.
Third, the industrial furnace fire-resistant cotton insulation advantages:
1, cost-effective, construction costs flat or even lower than the brick structure.
2, long life, material composition is extremely stable, stable service life can reach 5 - 10 years, effectively saving maintenance costs and enhance the use of the cycle.
3, energy-saving effect is obvious, a conventional tunnel kiln, a year can save 100-200 tons of coal, reduce costs, increase profits and competitiveness.
4, low density: light insulation than brick lining more than 75% lighter than light weight castable lining 90% to 95%. Such as the use of fiber lining can greatly reduce the furnace load of steel, to extend the furnace life.
5, anti-quench cold hot, will not be damaged due to open shutdown.
6, the construction is simple: the construction process without leaving the expansion joints, construction workers after basic training can be posts, construction technology on the insulation effect of the lining of small.
7, no oven: lining construction can be put into use, no oven program.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,firebrick refractory,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

Development and Prospect of Refractories

refractory material is a refractory degree of not less than 1580 degrees, a better thermal shock and chemical erosion, low thermal conductivity and low expansion coefficient of inorganic non-metallic materials. Its widely used in iron and steel, glass, cement and other industries. Refractories have their own characteristics have been proven advantages, but its shortcomings and deficiencies are also different. The development of refractories on the whole in the new products, new processes, such as the direction of development trends.

Refractory material firebrick refractory is mainly made of raw materials such as bauxite, dolomite, silica, magnesite, steel fiber and so on. The development of refractories in the national industrial production applications have a pivotal position.
Refractory materials basic refractories according to the product shape and compact degree, a casting method, melt blowing method, sintering method. Sintering method is part of the raw material pre-firing clinker, cracking and screening, and then a certain percentage of mixing with the raw materials, through molding, drying and firing. The purpose of raw materials is to burn the moisture, organic debris and gas burned. Reduce the sintering products shrink to ensure the accuracy of finished size. In order to homogenize the ingredients and particles of the various raw materials and clinker, kneading is carried out while the binder is added to enhance the bonding strength.

Casting method is to mix raw materials through the process of mixing and fine grinding, in high temperature baking, direct casting, cooling crystallization, annealing into products.

The melt blow method is a method in which the ingredients are melted and then sprayed with high pressure air or superheated steam to disperse them into steel fibers or hollow spheres.

refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

2016年11月3日星期四

Refractory ceramic fiber blanket professional thermal insulation material basic information

Refractory ceramic fiber blanket

Applications: Various industrial furnaces furnace furnace box-type furnace resistance furnace heat treatment furnace quenching furnace annealing furnace back to the furnace vacuum furnace firebrick refractory sintering furnace incinerator carburizing furnace special fire-resistant blanket ceramic fiber blanket, modular products; large-scale furnace equipment dedicated fire Good thermal stability; excellent tensile strength; low thermal conductivity; low heat capacity; excellent sound-absorbing basic refractories noise reduction performance. Features: excellent chemical stability; excellent thermal stability; High-temperature gasket; inorganic fire shutter doors fire-resistant layer; modules, folding block of raw materials. Insulation of high-temperature pipe insulation; electrical components fire insulation; Aerospace special fire - resistant blanket ceramic fiber blanket, module products.

The benefits of ceramic fiber blanket:
◎ In the module on the back of the various forms of the anchor makes the installation of the module can be used side by side arrangement can also be arranged parquet floor arrangement
◎ folding blanket in the lifting of the banding will be squeezed in different directions on each other, do not produce cracks
◎ elastic fiber blanket can resist mechanical external force
◎ ceramic fiber blanket elasticity can compensate for the deformation of the shell, making the gap between the components will not produce
◎ light weight, low heat absorption.
◎ low thermal conductivity can bring high energy efficiency
◎ has the ability to resist any thermal shock
◎ lining without drying and maintenance, so after installation can be put into use immediately
The anchoring system is located away from the hot surface of the assembly, making the metal anchor at a relatively low temperature, improving the safety of the anchorage

refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

2016年11月2日星期三

Refractory concrete of bauxite cement - Basic information

Refractory alumina bauxite concrete is the use of cement, refractory aggregate, admixture and water by a certain percentage of mixed molding, curing and hardening. Bauxite refractory concrete refractory brick with the same high temperature performance of the highest refractory temperature of 1650 degrees, when there are unparalleled advantages of refractory bricks. The refractory bricks in practical application of the formation of arbitrarily poor, and alumina refractory castable can be based on actual needs, according to design requirements, so that the internal structure of the drying furnace to form the ideal surface structure to form the ideal hot air. Thereby increasing the heat utilization rate. Shaped part of the refractory alumina brick masonry in the high temperature state of the overall strength is poor, resulting in residual shrinkage under high temperature, the roof is easy to collapse. The alumina refractory concrete structure is to make up for this shortcoming, it makes the furnace top as a whole structure, strength is very big, will not appear collapse phenomenon. Thereby prolonging the service life of the drying furnace.

The use of alumina castable materials concrete structure, greatly reducing the manufacturing cost. The use of alumina refractory concrete structure manufacturing and repair work is simple, convenient, easy to operate, repair time is short. In short, bauxite refractory concrete and refractory bricks compared to simplify the production process, reducing production costs and improve the quality of the drying furnace, is a better economic refractories.

High strength abrasion - resistant castables for boiler furnaces lining

High-strength refractory castable high strength wear-resistant castable by the high-strength aggregate, powder mineral additive composition, the optimal formulation design, with the smallest wear resistance, high strength, shape can be arbitrarily controlled, the overall strong, simple construction, Due to the addition of polymer, the base layer of concrete bonding firm. High-strength wear-resistant castable cheap, for the requirements of the construction site is the first choice of wear-resistant materials.

High-strength wear-resistant insulating castable refractory is a cement-based composite single-component dry mortar, from the high-strength cement, mineral admixture, high-strength aggregate and anti-cracking agent, the industrial production from the preparation. High-strength wearable castable can be used at the site of mixing with water, good construction workability, by artificial plaster in the silo or high insulating brick mine surface to form a certain thickness of the anti-wear layer, after the normal conservation to achieve technical requirements, with wear resistance High, and the basic concrete (steel silo) bonding strength, impact resistance, high compressive strength, durability, long life and so on. High-strength wear-resistant refractory material castable dedicated to metallurgy, coal, thermal power, chemical, cement and other industries Chong slag ditch, mine trough, unloading trough, the hopper, silo lining material anti-wear layer and water conservancy and hydropower, port and other projects Of the discharge gate, discharge hopper anti-wear layer, play a protective foundation of concrete (or steel silo) role. basic refractories Boiler kiln lining easy to wear parts with high-strength wear-resistant castable HF series castable is widely used throughout the country to build furnace kiln boiler construction and repair works.

Slide Gate Mechanism---Changxing Refractory material

Slide Gate Mechanism---Changxing Refractory material
Slide Gate Mechanism---Changxing Refractory material
Slide Gate Mechanism

Introduction:

Ladle slide gate mechanism, also called ladle slide gate system, slide gate assembly, sliding gate machenism. Ladle slide gate mechanism uses nodular cast iron as raw material. The sealing height is only 110mm. The fan-shaped slide gate plate is equipped with two slide plate blocks. The moving fan-shaped case handle can make one of the slide plate cast hole in working, and make another one moving to the other space of the equipment. At the same time, the moving out slide block can be changed.

Advantages:

1. Slip sheet is force uniform have good stability.
2. Sliding gate lateral clearance self-regulating sensitivity is high.
3. Increase the slip sheet's freedom, bottom slide can vertical-tuning.
4. Have double-sided tight pin; the gab of hinge lateral can be adjusted.

Application:

The slide blocks thicknesses are heightened by this equipment which can be used as rapid nozzle-change mechanism. While add immerse nozzle at the bottom of slide block, the ladle stopper can be replaced and protect the casting.

Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=54
E-mail:sales8@chinaelong.com

2016年11月1日星期二

Currently the most commonly used method of producing refractory balls

Machine pressure forming method is currently the most used in the production of refractories ball forming method. The method uses a pressure ball machine and a steel mold to press the prepared refractory material into a sphere. Because of the general machine pressure forming refers to the water content of 4% to 9% of the semi-dry material forming method, which is also called semi-dry forming. The method commonly used equipment friction brick press, lever press and hydraulic press and so on.
Machine pressure forming process is essentially a ball material within the particle-intensive and air discharge, the formation of dense sphere process. The ball-forming fire-resistant ball has the advantages of high density, high strength, small drying shrinkage and small shrinkage, easy control of fire-resistant ball size, so this method is the main part in refractory firebrick ball production. In order to obtain a dense sphere during press forming, sufficient pressure must be applied to the pellet. The size of the pressure should be able to overcome the internal friction between the pellet material, to overcome the external friction between the pellet and the mold wall to overcome the insulating castable moisture, particles and fill in the mold caused by uneven pressure distribution Uniformity.
The ratio between the three depends on the ball material dispersion, particle composition, ball material moisture, the size and shape of the sphere. Although the relationship between pressure and the densification of the sphere can be calculated by a number of theoretical formulas, such as the variation of the porosity of the sphere with pressure in logarithmic relation, the experimental method is usually used to determine the pressure per unit area of the sphere, Brick machine should have the total pressure.
Mechanical forming of the ball material requirements in addition to water should have a certain range of fluctuation, its particle size also has certain requirements, such as should have a reasonable grain size ratio, bulk density as large as possible. General critical particle size of 3 ~ 5mm, less than 0.088mm of fine powder content should be 35% to 45% range. The most common defects in machine-formed fire-resistant spheres are the crack and layer density. Spallation is the formation of pressure in the vertical direction of the pressurized layer of cracks. Ball material moisture is too high, too much powder, too little bonding agent and pressure will lead to the production of spall.
Therefore, in the production of these parameters must be controlled. Layer density phenomenon that the shape of the fireball after the density along the pressure direction of the inverter. By the above one-way pressurized insulating refractory cement ball is generally dense under the sparse, the same level is dense in the outer sparse. This is due to the friction between the pellet material and the ball material and the friction between the mold wall caused by the pressure decrease. Double-sided pressure and the wall in the mold coated with lubricating oil to reduce the external friction of the method can reduce this phenomenon and reduce the porosity of the sphere.
Selection of molding equipment should be based on the quality requirements of refractory balls, size and production volume for comprehensive consideration. General refractory ball with a simple fireball or shape, quantity, quality requirements of the general products, the choice of production efficiency of the high pressure ball machine; high quality requirements of the fireball can be nominal pressure not less than 2000K N friction Pressure ball machine.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.