Pneumatic conveying system

Abstract

The invention discloses a pneumatic conveying system. The pneumatic conveying system comprises a compressed air conveying mother tube, one or more bin pumps which are arranged in series, a discharge valve, a discharge hole gas supplementing machine, a conveying pipeline and a terminal bin, wherein the lower end of each bin pump is connected with a fluidizing device, the fluidizing device comprisesa fluidizing room, a fluidizing disc and a fluidizing room sealing head which are sequentially connected from top to bottom, and further comprises a fluidizing room discharge tube which transverselypenetrates through the fluidizing room, a fluidizing room discharge lifting tube which longitudinally communicates with the lower portion of the fluidizing room discharge tube and is positioned abovethe fluidizing disc is arranged inside the fluidizing room. According to the scheme adopted by the invention, the compressed air conveying mother tube is re-arranged, and is divided into three gas inlet branches, namely a fluidized gas inlet branch which communicates with the fluidizing room sealing head, a conveyed gas inlet branch which is connected to the first fluidizing room discharge tube which is in series connection in a gas flow conveying direction, and an auxiliary gas-blowing gas inlet branch which communicates with the discharge hole gas supplementing machine. According to the scheme adopted by the invention, the pneumatic conveying system is greatly simplified in structure, and also can realize great reduction of comprehensive gas consumption of the system.

Description

technical field [0001] The invention relates to the technical field of pneumatic conveying systems, in particular to a pneumatic conveying system. Background technique [0002] Pneumatic conveying system has been widely used in various domestic industries due to its advantages of flexible arrangement of ash conveying pipelines and no need to consume water resources. The good and the bad are mixed. Many systems have bloated system configuration, unstable operation, and high failure rate. A series of problems such as excessively high conditions. [0003] The stable and reliable operation of the pneumatic conveying system mainly depends on two aspects: the warehouse pump and the pipeline. The warehouse pump must ensure smooth and controllable material supply, and the pipeline must ensure smooth transportation. influences. In order to ensure smooth transportation in the pipeline, in addition to determining a reasonable pipe diameter and variable diameter, the material in the ...

AI Technical Summary

Problems solved by technology

When the feeding of the warehouse pump 1 to the delivery pipeline 33 cannot be fluidized and uncontrollable, the only way to achieve smooth delivery in the delivery pipeline 33 is to increase the gas volume to ensure delivery, which will result in high energy consumption and low delivery speed. Fast, and the wear of pneumatic conveying is proportional to the third power of the conveying speed, so it has caused the wear of the conveying pipe 33, the frequent wear of the intake pipe branch connected to the mixing chamber 5 and the conveying pipe 27 between the warehouse pumps, and the air intake pipe A series of problems such as the frequent damage of the pipeline air supply check valve 11 between the warehouse and the pump on the branch road and the frequent damage of the intake check valve 8 in the mixing chamber bring great inconvenience to the operation and maintenance, and affect the safe, stable and environmentally friendly operation of the system. There are huge hidden dangers, and at the same time cause high operation and maintenance costs

[0008] At the same time, due to the large number of air intake points and various check valves and other equipment in the conveying system, as many as dozens, the system is cumbersome. In addition, under the condition of a certain amount of air to be transported, due to too many air intake points, effective distribution cannot be realized ( If the air volume is too small, the check valve cannot be opened), which will lead to a series of problems such as the uncontrollable delivery air volume within the design air volume, the increase of system failure points, and the aggravation of system wear, which further exacerbates the high energy consumption and high operation and maintenance costs of the transmission system , the system is unstable

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