10-100mm Light Yellow High Strength Alumina Refractory Ball for Hot Blast Stove Offer

 The heat storage refractory ball has the characteristics of strong oxidation resistance and slag resistance.

Ceramic refractory balls are easy to replace and clean and can be reused.

Main specifications of refractory ball: Φ40mm Φ50mm Φ60mm Φ70mm

The material of the refractory ball is divided into high alumina, corundum and zirconium corundum.

There are many types of refractory balls, which can be used in high and low temperature shifting furnaces, reforming furnaces, hydroconverters, desulfurization tanks, and refractory balls and heating conversion equipment that are replaced by hot blast stoves in the steel industry.

The regenerative porcelain refractory ball has high strength and wear resistance; the thermal conductivity and the heat capacity are large, and the heat storage efficiency is high; the thermal stability of the regenerative porcelain ball is good, and the temperature is not easily broken when the temperature is drastically changed. The heat storage ball is especially suitable for the air separation equipment regenerator and the blast furnace gas heating furnace of the steel plant as the heat storage filler. The heat storage ball double preheats the gas and air, and the heat storage ceramic ball makes the combustion temperature quickly reach the rolling steel to heat the steel slab. Requirements.

High-aluminum porcelain refractory ball with high alumina content, high density, high mechanical 

strength, good wear resistance, stable chemical properties, excellent heat resistance, high-aluminum ceramic ball is widely used, can be used as chemical filler, high aluminum The porcelain ball can be used as a grinding medium. High-aluminum porcelain refractory balls are widely used in chemical, mechanical, electronic, environmental protection and other fields.

High aluminum refractory ball use precautions

High alumina refractory spheres are a class of alumina spheres that are referred to as high alumina spheres due to their high alumina content. High alumina balls can be subdivided into series of 90, 92, 95, 99, etc. according to the alumina content.

High aluminum ball is widely used in different types of ceramics, enamel, glass, chemical industry because of its high strength, high hardness, high wear resistance, excellent specific gravity, small volume, high temperature resistance, corrosion resistance and pollution-free. And so on the factory's thick and hard materials finishing and deep processing.

The users of high-aluminum balls are mainly ceramic factories. At present, there are data showing that grinding mud with 10% high aluminum balls (φ35MM) of pebbles (natural ball stones) can reduce the grinding time by 15% compared with pebbles only. Aluminum ball 30% high aluminum ball (φ35MM) grinds the mud, compared with only the aluminum ball, can shorten the grinding time by about 30%, simply calculate the electricity cost saved, about 2 years can be used because of the use of high aluminum balls The higher cost "province" comes back.

According to reports from individual manufacturers, all the natural ball stones were replaced by high-aluminum balls, and the output was about three times. Grinding raw materials with high-aluminum balls not only saves electricity costs, increases production, but also improves the efficiency of mechanical use, and has a great protective effect on mechanical equipment.

At present, the main problem encountered in the use of high-aluminum balls is that high-aluminum balls have high hardness and brittleness. Dry grinding is likely to cause cracking of the ball stones and pits on the surface of the ball stones, resulting in a very high wear rate. The method of polishing the ball stone before, picking out cracked or high-strength ball stones to minimize the loss of customers.

Application of refractory ball and checkered brick in hot air furnace regenerator

 The regenerator masonry is divided into two types: lattice bricks and refractory balls. Generally, the hot air furnace heat storage chamber is a brick lattice of continuous passages made of lattice bricks, and the spherical hot air furnace replaces the grid with natural stacked fire-resistant ball beds. brick. The heat storage capacity of the hot blast stove, the achieved wind temperature level and the heat transfer efficiency are closely related to the structure and material of the checker brick (refractory ball). The choice of the masonry needs to take into account both the surface heat transfer conditions (heated area) and heat storage or release. Thermal conditions (bulk density, heat capacity, equivalent thickness, thermal conductivity, etc.).

According to the heat exchange principle of the regenerator masonry, the upper part of the masonry is required to focus on multiple heat storage, and the lower part of the middle part and the lower part are mainly focused on enhancing convective heat transfer. When using lattice brick masonry, the upper part adopts large grid hole and large equivalent thickness, and the lower part adopts small grid hole and thin equivalent thickness, which is a reasonable structure, but the masonry is troublesome and difficult to clean, and the lattice brick masonry is currently used. Specifications, the refractory material of the masonry is selected in sections: the upper part is made of a material with a large bulk density and a large heat capacity, and the lower part is made of a material having a small bulk density and a small heat capacity. When using refractory ball masonry, multi-stage structure is generally adopted: the upper part adopts large diameter refractory ball with large heat capacity and good thermal conductivity, and the lower part adopts small diameter refractory ball with small bulk density and small heat capacity.

The checkered bricks are divided into slab-shaped bricks and block-shaped bricks. The slab-shaped brick masonry has poor stability and has been eliminated. Block bricks are hexagonal and rectangular. They are made of round, square, triangular, diamond and hexagonal holes on the whole brick. Five-hole bricks and seven-hole bricks are commonly used in China. Modern hot air stoves Seven-hole bricks are mainly used, and nineteen-hole bricks and thirteen-hole bricks have also been applied. This type of brick building has good stability, fast masonry and large heating area.

The plaid bricks are built with independent bricks and staggered. The bricks are made of independent bricks, and the bricks are seamlessly sewed from the furnace raft to the upper surface of the bricks to form independent brick columns. By using this method, the tolerances on the height of the bricks are not strict, and the high through-hole ratio can be ensured after the masonry. However, the stability of the lattice masonry is poor, and it is easy to cause the lattice to tilt or twist. . When staggered masonry, the upper and lower layers are staggered. Generally, the three layers are grouped together, and the cycle is staggered. The regenerator compartment bricks are interlocked into one whole, which enhances stability. There are more than three 

correspondingly distributed bosses and grooves on the upper and lower contact faces of the staggered masonry bricks. The upper and lower bricks are interlocked and positioned to eliminate the horizontal misalignment and rotation of the bricks. This masonry method requires the height tolerance of the bricks. Small, the bricks are required to be bricks before the masonry, and are divided into several grades according to the height, so that each layer uses the bricks of the same tolerance range to keep the bricks on the same level.

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Henan hongtai kiln refractory co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service.Henan hongtai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.
Henan hongtai kiln refractory co., LTD. Main products are high alumina brick, clay brick, fused zirconium corundum brick, fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks;Boiler industry USES all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, Korea, Pakistan, kazakhstan, other southeast Asian countries and regions.