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How to deal with the blockage of the inflatable pipe of the inflatable tank

How to deal with the blockage of the inflatable pipe of the inflatable tank

  • Categories:Company News
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  • Time of issue:2021-06-18
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(Summary description)In the autoclaved brick and autoclaved block industry, powder materials are usually used, mainly fly ash, followed by dry fly ash, bulk cement, etc. These powder materials are packaged in their respective silos. A common defect with powdered materials is blanking, which often results in arching and tube formation. Although there are many measures to prevent this phenomenon of the inflatable box, such as correctly designing the size and shape of the discharge port, or installing vibration excitation devices on the bucket wall, such as arch breakers, electromagnetic vibrators, vibrators attached to the warehouse wall, etc., some Even if the vibrating hopper is installed, the phenomenon of arching into the pipeline is inevitable.

How to deal with the blockage of the inflatable pipe of the inflatable tank

(Summary description)In the autoclaved brick and autoclaved block industry, powder materials are usually used, mainly fly ash, followed by dry fly ash, bulk cement, etc. These powder materials are packaged in their respective silos. A common defect with powdered materials is blanking, which often results in arching and tube formation. Although there are many measures to prevent this phenomenon of the inflatable box, such as correctly designing the size and shape of the discharge port, or installing vibration excitation devices on the bucket wall, such as arch breakers, electromagnetic vibrators, vibrators attached to the warehouse wall, etc., some Even if the vibrating hopper is installed, the phenomenon of arching into the pipeline is inevitable.

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2021-06-18
  • Views:
Information

 In the autoclaved brick and autoclaved block industry, powder materials are usually used, mainly fly ash, followed by dry fly ash, bulk cement, etc. These powder materials are packaged in their respective silos. A common defect with powdered materials is blanking, which often results in arching and tube formation. Although there are many measures to prevent this phenomenon of the inflatable box, such as correctly designing the size and shape of the discharge port, or installing vibration excitation devices on the bucket wall, such as arch breakers, electromagnetic vibrators, vibrators attached to the warehouse wall, etc., some Even installing a vibrating hopper, the phenomenon of arching into the pipeline is inevitable。

 

How to deal with the blockage of the inflatable pipe of the inflatable tank

 

  

The method to prevent the phenomenon of arching is to install a distribution cone or a filling device in the silo cone. Generally, the inflatable box device is used, and its use and transformation are briefly described as follows:

Four aeration boxes are installed on the periphery of the cone part of the powder silo. The thickness of the box is 100 mm, and an inner frame is embedded in it, and the inner frame is sealed with a filter screen. When installing, determine the position of the cone part according to the size of the inflatable box, then cut the hole with the same size as the inflatable box on the cone, weld the inflatable box on the cone, and connect the upper cover of the inflatable box with screws, which is easy to disassemble and install. maintain. The inflatable box is connected with the trachea, each branch pipe (4 pieces) is combined into a main trachea, and the main trachea is controlled by an air valve.

When the powdery material is blocked, arched or the pipeline is blocked, start the feeding valve to transport compressed air, so that the powdery material is discharged relatively smoothly. When the material reaches a balanced state (set amount), close the air valve, and the effect of inflation will only play a greater role in the case of uneven material feeding (mainly because the material cannot be discharged), but the air box cannot always be used. It is open, otherwise it will be difficult to balance when there is too much material, and sometimes the outlet will be squeezed. Therefore, when the material is normal after the charging valve is opened, the charging valve must be closed immediately.

After a period of trial production, the inflatable device was used to solve the problem of powder feeding, which played a very good role. However, after the inflation valve is opened, the material still does not fall or the amount of material does not reach the computer set value in the central control room: after inspection, it is found that the inflation pipe is blocked by powder, that is, the air in the trachea cannot be sent to the silo after it is blocked, and the animal feed is also blocked. Can't blow out. There is powder in the air duct with a long pipe, indicating that there is dust leakage in the filter screen in the inflatable box, either the net is broken or the net is loose. Due to the large amount of materials in the silo, it is impossible to remove the cover on the inflatable box to check the condition or replace the filter screen of the inflatable box. This will affect the production. First, the blockage in the trachea will be slowly inflated and discharged until the air flow is exhausted, and then the flange will be tied up and continue to work. At the beginning, 1D~2D can be blocked. Later, it can be blocked several times a day and knocked several times a day, which seriously affects the material ratio and has a great impact on production. After a period of trial production, the inflatable device was used to solve the problem of powder blanking, which played a very good role. However, after the inflation valve is opened, the material still does not fall or the amount of material does not reach the computer set value in the central control room: after inspection, it is found that the inflation pipe is blocked by powder, that is, the air in the trachea cannot be sent to the silo after it is blocked, and the animal feed is also blocked. Can't blow out. There is powder with long pipes in the air duct, indicating that there is dust leakage in the filter screen in the inflatable box. Either the net is broken or the net is loose. Due to the large amount of materials in the silo, it is impossible to remove the cover on the inflatable box to check the condition or replace the filter screen of the inflatable box. This will affect the production. First, the blockage in the trachea will be slowly inflated and discharged until the air flow is exhausted, and then the flange will be tied up and continue to work. At the beginning, 1D~2D can be blocked. Later, it can be blocked several times a day and knocked several times a day, which seriously affects the material ratio and has a great impact on production.

How to operate when the cover plate of the inflatable box cannot be removed? In order to solve this problem, the method of installing a one-way valve (check valve) is considered, that is, a one-way check valve is installed at the flange of the gas pipe under the charging box. Theoretically It prevents the blockage of the powdered material from flowing back to the trachea, and the actual operation effect also reaches the ideal state. After the one-way check valve is installed, it plays the role of a feeding device. The material balance is good in the later stage, and the material ratio is also normal.

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