广州科里时技术有限公司

语言 Language 语言

NEWS CENTER

新闻中心

>
>
kelishi丨Pneumatic conveying system manufacturers: how to prevent blockage of vacuum pneumatic conveying system pipes

kelishi丨Pneumatic conveying system manufacturers: how to prevent blockage of vacuum pneumatic conveying system pipes

  • Categories:News Center
  • Time of issue:2022-05-06 10:21

(Summary description)In the current industrial environment, the application of air flow to realize the transportation of various powders, granules and other materials emerges one after another. Whether it is positive pressure vacuum pneumatic conveying or negative pressure vacuum pneumatic conveying, if the preliminary design is unreasonable, it will face the problem of pipeline blockage. The following vacuum pneumatic conveying system manufacturers have compiled several methods for preventing clogging of vacuum pneumatic conveying systems. 1. When designing a vacuum pneumatic conveying system, the mixing ratio and wind speed should be considered. When the conveyed materials are different, the process parameters such as mixing ratio and wind speed will also be different. Equipment should be selected reasonably when designing. If the diameter of the delivery tube is too small, it is easy to block. For materials with poor fluidity, when the mixing ratio is relatively large, it is generally recommended to use a smaller diameter. For materials with good fluidity, when the mixing ratio is very low, a larger pipe diameter should be selected. 2. Reasonable design of pipeline layout of vacuum pneumatic conveying system Design reasonable piping arrangement. The pipeline design should choose the scheme with short conveying distance, fewer and fewer concentrated elbows, small corners of reversing elbows, and large radius of curvature. For parts with increased local resistance, such as elbows and commutators, they should be as close to the high-pressure end as possible, that is, close to the air supply tank when pressing, and close to the mechanical end of the air source when inhaling.     3. Install the speed increaser in the vacuum pneumatic conveying system For high-pressure conveying device, if the conveying distance is long, the speed increaser can be installed in the place where the pipeline is easy to be blocked or the local resistance is large. The pressure delivery device can also be provided with a mouthpiece line with a shut-off valve. When blocked, open the valve, blow in compressed air in sequence, and blow into the blocking layer section by section. For negative pressure pneumatic conveying, several plugs with adjustable apertures can be opened in places that are prone to blockage. When the delivery pipeline is blocked, the pipeline can be opened to allow air to enter the pipeline and blow through. Fourth, the vacuum pneumatic conveying system selects the air source equipment with good performance The gas supply system should ensure sufficient gas volume and stable pressure. Therefore, choose a gas source machine with good performance, and be equipped with a dedicated gas storage tank and separator with sufficient capacity. If the air source comes from the main air compressor station, the air intake pipe of the special air storage tank should also be equipped with a one-way valve to prevent the backflow of compressed air due to other disturbances.   5. In the future operation, the pipeline of the vacuum pneumatic conveying system must be cleaned regularly. Before the material is conveyed, the system should be cleaned, and the feeder should supply the material evenly. The design of the conveying tank should be reasonable. If the discharge port is too small, the taper is not enough, and the wall surface is uneven, which will affect the uniform discharge. If the structure is unreasonable, the pressure loss will increase, and it is easy to cause blockage. The transfer tank is preferably equipped with a fluidized air intake. When conveying some viscous materials, steel brush balls (with a diameter slightly smaller than the inner diameter of the conveying pipe) and some coarse quartz sand should be added after the daily conveying, and sent to the conveying pipe through the transmitter to clean the pipe 6. Install liquid level devices and alarms, The vacuum pneumatic conveying system should be equipped with liquid level devices and alarms as much as possible to realize semi-automatic or fully automatic control to eliminate operation errors or deal with abnormal phenomena in time to prevent blockage. 7. Inspection before operation Before the operation of the vacuum conveying system, the equipment, piping and control elements of the entire system should be inspected. If there is any abnormal phenomenon, it should be dealt with and repaired in time. Clear the water in the gas storage tank and the gas-water separator, clean the unloader, and prepare the receiving system. The pressure and flow of the gas source are normal, the pipeline is smooth without air leakage, and the direction of the commutator is correct.

kelishi丨Pneumatic conveying system manufacturers: how to prevent blockage of vacuum pneumatic conveying system pipes

(Summary description)In the current industrial environment, the application of air flow to realize the transportation of various powders, granules and other materials emerges one after another. Whether it is positive pressure vacuum pneumatic conveying or negative pressure vacuum pneumatic conveying, if the preliminary design is unreasonable, it will face the problem of pipeline blockage. The following vacuum pneumatic conveying system manufacturers have compiled several methods for preventing clogging of vacuum pneumatic conveying systems.

1. When designing a vacuum pneumatic conveying system, the mixing ratio and wind speed should be considered. When the conveyed materials are different, the process parameters such as mixing ratio and wind speed will also be different. Equipment should be selected reasonably when designing. If the diameter of the delivery tube is too small, it is easy to block. For materials with poor fluidity, when the mixing ratio is relatively large, it is generally recommended to use a smaller diameter. For materials with good fluidity, when the mixing ratio is very low, a larger pipe diameter should be selected.

2. Reasonable design of pipeline layout of vacuum pneumatic conveying system

Design reasonable piping arrangement. The pipeline design should choose the scheme with short conveying distance, fewer and fewer concentrated elbows, small corners of reversing elbows, and large radius of curvature. For parts with increased local resistance, such as elbows and commutators, they should be as close to the high-pressure end as possible, that is, close to the air supply tank when pressing, and close to the mechanical end of the air source when inhaling.

 



 

3. Install the speed increaser in the vacuum pneumatic conveying system

For high-pressure conveying device, if the conveying distance is long, the speed increaser can be installed in the place where the pipeline is easy to be blocked or the local resistance is large. The pressure delivery device can also be provided with a mouthpiece line with a shut-off valve. When blocked, open the valve, blow in compressed air in sequence, and blow into the blocking layer section by section. For negative pressure pneumatic conveying, several plugs with adjustable apertures can be opened in places that are prone to blockage. When the delivery pipeline is blocked, the pipeline can be opened to allow air to enter the pipeline and blow through.

Fourth, the vacuum pneumatic conveying system selects the air source equipment with good performance

The gas supply system should ensure sufficient gas volume and stable pressure. Therefore, choose a gas source machine with good performance, and be equipped with a dedicated gas storage tank and separator with sufficient capacity. If the air source comes from the main air compressor station, the air intake pipe of the special air storage tank should also be equipped with a one-way valve to prevent the backflow of compressed air due to other disturbances.



 

5. In the future operation, the pipeline of the vacuum pneumatic conveying system must be cleaned regularly.

Before the material is conveyed, the system should be cleaned, and the feeder should supply the material evenly. The design of the conveying tank should be reasonable. If the discharge port is too small, the taper is not enough, and the wall surface is uneven, which will affect the uniform discharge. If the structure is unreasonable, the pressure loss will increase, and it is easy to cause blockage. The transfer tank is preferably equipped with a fluidized air intake. When conveying some viscous materials, steel brush balls (with a diameter slightly smaller than the inner diameter of the conveying pipe) and some coarse quartz sand should be added after the daily conveying, and sent to the conveying pipe through the transmitter to clean the pipe

6. Install liquid level devices and alarms,

The vacuum pneumatic conveying system should be equipped with liquid level devices and alarms as much as possible to realize semi-automatic or fully automatic control to eliminate operation errors or deal with abnormal phenomena in time to prevent blockage.

7. Inspection before operation

Before the operation of the vacuum conveying system, the equipment, piping and control elements of the entire system should be inspected. If there is any abnormal phenomenon, it should be dealt with and repaired in time. Clear the water in the gas storage tank and the gas-water separator, clean the unloader, and prepare the receiving system. The pressure and flow of the gas source are normal, the pipeline is smooth without air leakage, and the direction of the commutator is correct.

  • Categories:News Center
  • Time of issue:2022-05-06 10:21
  • Views:
Information

In the current industrial environment, the application of air flow to realize the transportation of various powders, granules and other materials emerges one after another. Whether it is positive pressure vacuum pneumatic conveying or negative pressure vacuum pneumatic conveying, if the preliminary design is unreasonable, it will face the problem of pipeline blockage. The following vacuum pneumatic conveying system manufacturers have compiled several methods for preventing clogging of vacuum pneumatic conveying systems.

1. When designing a vacuum pneumatic conveying system, the mixing ratio and wind speed should be considered. When the conveyed materials are different, the process parameters such as mixing ratio and wind speed will also be different. Equipment should be selected reasonably when designing. If the diameter of the delivery tube is too small, it is easy to block. For materials with poor fluidity, when the mixing ratio is relatively large, it is generally recommended to use a smaller diameter. For materials with good fluidity, when the mixing ratio is very low, a larger pipe diameter should be selected.

2. Reasonable design of pipeline layout of vacuum pneumatic conveying system

Design reasonable piping arrangement. The pipeline design should choose the scheme with short conveying distance, fewer and fewer concentrated elbows, small corners of reversing elbows, and large radius of curvature. For parts with increased local resistance, such as elbows and commutators, they should be as close to the high-pressure end as possible, that is, close to the air supply tank when pressing, and close to the mechanical end of the air source when inhaling.

 

科里时丨气力输送系统厂家:如何防止真空气力输送系统管道堵塞

 

3. Install the speed increaser in the vacuum pneumatic conveying system

For high-pressure conveying device, if the conveying distance is long, the speed increaser can be installed in the place where the pipeline is easy to be blocked or the local resistance is large. The pressure delivery device can also be provided with a mouthpiece line with a shut-off valve. When blocked, open the valve, blow in compressed air in sequence, and blow into the blocking layer section by section. For negative pressure pneumatic conveying, several plugs with adjustable apertures can be opened in places that are prone to blockage. When the delivery pipeline is blocked, the pipeline can be opened to allow air to enter the pipeline and blow through.

Fourth, the vacuum pneumatic conveying system selects the air source equipment with good performance

The gas supply system should ensure sufficient gas volume and stable pressure. Therefore, choose a gas source machine with good performance, and be equipped with a dedicated gas storage tank and separator with sufficient capacity. If the air source comes from the main air compressor station, the air intake pipe of the special air storage tank should also be equipped with a one-way valve to prevent the backflow of compressed air due to other disturbances.

科里时丨气力输送系统厂家:如何防止真空气力输送系统管道堵塞

 

5. In the future operation, the pipeline of the vacuum pneumatic conveying system must be cleaned regularly.

Before the material is conveyed, the system should be cleaned, and the feeder should supply the material evenly. The design of the conveying tank should be reasonable. If the discharge port is too small, the taper is not enough, and the wall surface is uneven, which will affect the uniform discharge. If the structure is unreasonable, the pressure loss will increase, and it is easy to cause blockage. The transfer tank is preferably equipped with a fluidized air intake. When conveying some viscous materials, steel brush balls (with a diameter slightly smaller than the inner diameter of the conveying pipe) and some coarse quartz sand should be added after the daily conveying, and sent to the conveying pipe through the transmitter to clean the pipe

6. Install liquid level devices and alarms,

The vacuum pneumatic conveying system should be equipped with liquid level devices and alarms as much as possible to realize semi-automatic or fully automatic control to eliminate operation errors or deal with abnormal phenomena in time to prevent blockage.

7. Inspection before operation

Before the operation of the vacuum conveying system, the equipment, piping and control elements of the entire system should be inspected. If there is any abnormal phenomenon, it should be dealt with and repaired in time. Clear the water in the gas storage tank and the gas-water separator, clean the unloader, and prepare the receiving system. The pressure and flow of the gas source are normal, the pipeline is smooth without air leakage, and the direction of the commutator is correct.

Keyword:

Scan the QR code to read on your phone

Relevant information

Copyright © Guangzhou Chris Technology Co., Ltd. 2022 All rights reserved  粤ICP备17072682号  SEO