With the rising prices of raw materials and transportation in the current market, the proportion of energy consumption is increasing. How to save energy and reduce energy consumption is the main theme of current economic development.polycrystalline fiberCome out, low heat capacity, low thermal conductivity and other advantages are favored, but the price is more close to the people is very important, then, let's understand the advantages of polycrystalline fiber used in heating furnace!

Improve the life of furnace roof and burner brick

Paste on the inner surface of the furnace roofpolycrystalline fiberThe direct cleaning of the furnace roof by furnace gas is improved, the rapid cooling and heating of the furnace roof are alleviated, the temperature of the furnace roof is reduced by 70~100, and the cracking and peeling of materials are effectively prevented. Due to the characteristics of regenerative combustion technology, the regenerative air is very destructive to the burner block. The burner brick adopts pre-forming technology and on-site casting technology, which is difficult to maintain and replace. Pasting polycrystalline fibers on the surface of the burner brick can alleviate the erosion of the flame on the burner brick and effectively protect the burner brick. After sticking the fiber, only a small amount of small cracks appear after using 2a, and the service life can be extended to more than 4 years.

Increase radiation heat transfer and reduce heat loss

The heat transfer mode in the high temperature zone of the heating furnace is mainly radiation heat transfer, which is the radiation heat transfer between the furnace gas, the furnace wall and the heating billet. The furnace wall blackness is usually 0.8, and the polycrystalline mullite fiber blackness is 0.95. Under the same heating conditions, after pasting polycrystalline fibers, the increase of blackness enhances the heat radiation in the furnace, and improves the heating speed of the blank and the heating capacity in the furnace. Under the same conditions, pastepolycrystalline fiberReduces gas consumption. It is observed that the unit consumption of the heating furnace before and after maintenance is 1.04GJ/t and 0.98GJ/t, respectively.

The plate and strip factory determines 10 temperature measurement points outside the top plate and side wall, and checks the peeling of polycrystalline fibers by measuring and repairing the temperature of each point when the next repair is approached. The inspection results are shown in Table 1. Table 1 shows that under the same furnace temperature conditions, the outer surface of the furnace body is reduced by 34.8 on average, the heat dissipation of the furnace body is reduced, and the thermal efficiency of the furnace body is improved. At the same time, with the improvement of the working environment, the on-site inspection and operation of the operator has become easier.

Reduce thermal inertia, improve yield and heating quality.

The side wall of the high temperature section of the heating furnace in the plate and belt plant is made of castable as a whole, the top plate is made of plastic percussion, the heat-resistant material used is large, and the burner adopts a single heat storage combustion method. This method determines that the heating furnace has a certain lag in the heating and cooling process. On the other hand, polycrystalline fiber reduces the heat capacity in the furnace, reduces the thermal conductivity, accelerates the lifting in the furnace, reduces the thermal inertia in the furnace, and is conducive to increasing the output. The shortening of the heating time of the fabric reduces the oxidation and decarburization of the fabric in the heating furnace and ensures the heating quality of the fabric. The oxygen combustion loss decreased from 1.22% to 1.20%, and the yield increased by 0.02%.

The above introduction ispolycrystalline fiberWhat are the advantages of using heating furnaces? If you need to know more, please feel free to contact us!