New high-temperature heat-insulation and heat-insulation paints show off in rotary kiln

In many manufacturing industries such as building materials, metallurgy, chemical industry, and environmental protection, rotary equipment is widely used for mechanical, physical or chemical treatment of solid materials. This type of equipment is called a rotary kiln. Rotary kiln is generally divided into kiln shells. (Slightly inclined), and can be called rotary kiln rotary kiln, also known as rotary kiln; Another type of kiln cylinder body is not known as a vertical shaft kiln rotation. The main equipment of the rotary kiln is the kiln shell, which is the main body of the rotary kiln (rotary kiln). The thickness of the kiln shell steel plate is about 40mm, the temperature in the kiln shell is about 1000 degrees Celsius, the high temperature is 1600°C, so the kiln shell The heat insulation to prevent heat loss becomes the key to the rotary kiln. The traditional kiln shell is built with a layer of 200mm firebrick or silicon carbide brick for better heat preservation. This kind of kiln shell has a large weight ratio. When the kiln shell is in operation, due to the high temperature and load bearing, the kiln shell will There is an elliptical deformation, which will put pressure on the kiln brick and affect the life of the kiln brick.

Now there is a good rotary kiln heat insulation material, high temperature insulation coating, model number is ZS-1, exclusively developed by Beijing Zhisheng Weihua Chemical Co., Ltd., the coating is water-based inorganic coating, using Zhisheng Weihua special high temperature solution And selected selected nano ceramic hollow microspheres, ** fiber, etc. for the finishing of inorganic materials, temperature range of -80-1800 °C, the thermal conductivity of only 0.03W / m. K, the proportion of small, light weight, can greatly reduce the weight of painted objects. ZS-1 high temperature heat insulation coating can effectively inhibit and shield the infrared radiant heat and heat conduction heat, thermal insulation inhibition efficiency of up to 90%, can inhibit the heat radiation of high temperature objects and heat conduction loss, the rotation The internal heat of the kiln can be kept 70% without losing. In addition, the paint is fire-retardant, wear-resisting and pressure-resistant, insulation breakdown resistance, acid and alkali resistance, light weight, convenient construction and long service life.

The new rotary kiln is designed to provide better heat insulation, reduce the weight of the kiln shell, and further protect the kiln shell steel plates. Now brushing the ZS-1 high-temperature thermal insulation coating, the construction method is as follows:

1, the existing rotary kiln, the ZS-1 high temperature thermal insulation coating brushing on the kiln shell metal shell, only brush a few millimeters, can well reduce the kiln shell metal shell temperature, prevent heat loss, save Energy, but also better protection The kiln shell metal shell is not rusted by air corrosion, and the added weight of the thermal insulation material is very small. Zhisheng paint coating has high hardness and can withstand a certain external impact.

2, brushing in the kiln shell metal inner wall, in the insulation brick or between the silicon carbide brick, the thermal conductivity of the coating is a few times lower than the traditional thermal insulation thermal coefficient, brush coating thickness can reduce the insulation brick or carbonization Several times the thickness of the silicon brick greatly reduces the overall weight of the rotary kiln, and the compactness is high, which can better prevent the corrosion gas in the kiln from contacting the steel plate of the rotary kiln.

3, the rotary kiln's tile temperature or oil pool temperature exceeds not more than 45 °C, to do a good job of tile or other parts of the oil pool of high-temperature radiant heat, to prevent the tile temperature or oil pool temperature is too high, in the tile or oil pool brushing ZS- 1 Zhisheng high-temperature heat insulation coating can well prevent the influence of high temperature heat on tile or oil pool.

High-temperature insulation and heat-insulating paints are technically feasible, economically economical, reasonable in supporting components, and environmental and social emission reduction measures in rotary kiln, and they reduce consumption, reduce losses, discharge pollutants, and prevent waste in all aspects from energy production to consumption. Effective and rational use of energy, rotary kiln can achieve good and fast economic development.