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In the process of kiln operation, we must strictly control the rotary kiln

Author: admin Release time: 11:13, December 19, 2019 Number of visits:

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The operation of rotary kiln is very simple, and it has a wide range of uses. We can often see its use in many fields. To ensure Rotary kiln In particular, we need to maintain sufficient oxygen in the furnace. If the furnace oxygen is not enough, it will bring a great impact, then we will introduce how the furnace oxygen will be.

In the mixer rotary kiln, the combustion process of solid fuel includes drying, preheating, combustion and burnout. When the fuel moves downward in the pre heating zone, it is heated to the ignition temperature. When the preheated air from cold cutting enters the lower part of the calcination zone, it begins to contact with the fuel, and the combustion is carried out in the calcination zone. In the lower part of this zone, the excess air coefficient is relatively low

In the kiln, rotary kiln is widely used, and some problems can not be avoided. For example, in the process of firing, the fire in the furnace becomes larger. In order to avoid the impact of the fire on the products and the kiln itself, how should we deal with this situation

When the amount of coal gangue is increased, the amount of clay used in the rotary kiln is reduced;

2. Speed up the edge entry speed, but this will cause the black core volume to be too large;

3. Reduce the amount of exhaust fan and inlet speed formula, reduce the firing temperature of tunnel kiln, and try to change the formula.

The above is about the rotary kiln fire treatment method, in the brick firing process, if the fire in the kiln becomes larger, it will lead to the deformation of the brick, causing certain difficulties for our production. Therefore, when the fire gets bigger, it should be operated according to the standard method immediately. The occurrence of this problem is inevitably related to the improper operation. At ordinary times, we should pay attention to the standard of operation. The size of the fuel directly affects the combustion rate and the thickness of the calcined zone.

In order to ensure that the material has enough residence time in the calcination, there are certain requirements for the fuel and the block size of the material. Therefore, the fuel block is too small and the combustion speed is fast, which makes the high temperature zone too concentrated, and the residence time of materials in the high temperature zone is too short, so the main reaction is too late during the calcination, which affects the calcination quality of rotary kiln. However, if the fuel block is too large, the combustion speed will be slowed down and the combustion zone will be elongated, resulting in the concentration of firepower, lowering the temperature of calcination zone, and shortening the cold cutting zone correspondingly, which will affect the quality of clinker and increase the heat consumption. In addition, if the fuel block is too large, the ash content will be too concentrated, which will reduce the fuel quality. The briquette of coke is 35-40 ♥♥ Because the surface of anthracite per unit mass is much smaller than that of coke and the combustion speed is slow, the briquette of anthracite is smaller than that of coke.

This is the phenomenon of rotary kiln under anoxic condition. If the kiln continues to operate under anoxic condition, it will bring certain damage to the kiln itself, which needs to be repaired in the later stage. In addition, the quality of the products produced in this case is difficult to meet the requirements. Therefore, we must strictly control the quality of the products during the operation of the kiln to avoid the occurrence of accidents.

 Cement rotary equipment  The production and operation of environmental protection rotary kiln is stable,

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