Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Stage blowback dust-cleaning method and equipment of air box blowback bag type dust collector

A technology of reverse blowing bag and dust collector, applied in chemical instruments and methods, separation methods, separation of dispersed particles, etc., can solve the problems of uneven dust removal on the surface of dust removal bags, reduced filtration efficiency of dust collectors, and different resistance of dust removal bags, etc. To achieve the effect of improving the cleaning effect, convenient and quick installation, and improving the cleaning efficiency

Inactive Publication Date: 2011-06-01
TIANJIN MAIRUI ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although this method of dust removal is widely used, there are shortcomings in its use: the wind pressure and air volume of the reverse blower are fixed, and the resistance of the dust removal bag is different due to different lengths.
When the reverse blower blows the dust bag in reverse direction, the dust on the upper part of the dust bag will be blown off, and at the same time, part of the back blow will be shunted and discharged from the cleaned sieve holes, while the dust attached to the outer surface of the lower part of the dust bag will be blown off. The dust cannot be cleaned due to insufficient back blowing wind force and air volume, resulting in uneven dust removal on the surface of the dust removal bag, and dust accumulation at the bottom of the dust removal bag, which affects the dust removal effect and reduces the filtration efficiency of the entire dust collector. serious impact on the process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Stage blowback dust-cleaning method and equipment of air box blowback bag type dust collector
  • Stage blowback dust-cleaning method and equipment of air box blowback bag type dust collector
  • Stage blowback dust-cleaning method and equipment of air box blowback bag type dust collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The step-by-step back-blowing dust cleaning method of the air box back-blowing bag filter, the specific steps include:

[0032] (1) Close the exhaust valve of the bag room where the dust collector needs to be cleaned, and open the blowback valve;

[0033] (2) Set the initial wind speed of the blower back to 0.3 times of the filtering wind speed, so that it can blow back the dust bag in the dust removal bag room, and the back blow time is 5s;

[0034] (3) Increase the air volume of the reverse blower to 1 time of the filtering wind speed;

[0035] (4) Continue to blow back the dust bag, the back blow time is 60s, and the dust cleaning is over.

Embodiment 2

[0037] (1) Close the exhaust valve of the bag room where the dust collector needs to be cleaned, and open the blowback valve;

[0038] (2) Set the initial wind speed of the blower back to 0.8 times of the filtering wind speed, so that it can blow back the dust bag in the dust removal bag room, and the back blow time is 2s;

[0039] (3) Increase the air volume of the reverse blower to twice the filtering wind speed;

[0040] (4) Continue to blow back the dust bag, the back blowing time is 15s, and the dust cleaning is over.

Embodiment 3

[0042] The step-by-step back-blowing dust cleaning method of the air box back-blowing bag filter, the specific steps include:

[0043] (1) Close the exhaust valve of the bag room where the dust collector needs to be cleaned, and open the blowback valve;

[0044] (2) Set the initial wind speed of the blower to twice the filtering wind speed, so that it can blow back the dust bag in the dust removal bag room, and the back blow time is 0.5s;

[0045] (3) Increase the air volume of the reverse blower to 5 times of the filtering wind speed;

[0046] (4) Continue to blow back the dust bag, the back blowing time is 2s, and the dust cleaning is over.

[0047] Working principle of the present invention is:

[0048] When the exhaust valve of the dust cleaning bag room is closed and the blowback valve is opened, the pressure of the dust cleaning bag room and the ash storage is equal. The first-stage wind blown by the reverse blower blows into the inside of the dust bag, so that the sp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a stage blowback dust-cleaning method of an air box blowback bag type dust collector, and the air box blowback bag type dust collector, and the method includes the following steps: (1) closing an air exhaust valve of a dust collection bag chamber of the collector, and opening a reverse blow valve; (2) setting the initial wind speed of a back blower to 0.3-2 times as high as the filtering wind speed to blow back the dust collection bag in the dust collection chamber, with blowback time being 0.5-5 s; (3) increasing air quantity of the back blower to 1-5 times as large as the filtering wind speed; (4) continuing to blow back the dust collection bag, with blowback time being 2-60 s, and finishing the dust collection. The stage blowback dust-cleaning method in the invention can enhance blowback dust-cleaning effect of air box blowback bag type dust collector, ensure external surface of the dust collection bag to be thoroughly cleaned, avoid dust deposition phenomenon at bottom of the dust collection bag, and improve dust collection efficiency. In addition, the dust collector used in the stage blowback dust-cleaning method is characterized by simple structure, reasonable design, convenient use, and energy saving.

Description

technical field [0001] The invention belongs to the field of environmental protection dust removal equipment, in particular to a method for cleaning dust by staged blowback of an air box blowback bag type dust collector and the equipment thereof. Background technique [0002] The bag filter is a commonly used equipment in the field of dust removal. The inside of the box is divided into multiple bag rooms by vertical partitions, and multiple dust bags are installed in each bag room. The air box anti-blowing bag filter is a kind of bag filter, which is usually composed of an air inlet pipe, an upper box, a lower box, an exhaust pipe, an ash store and a blower blower. The upper box and the lower box Through the orifice connected installation. After the air box anti-blowing bag filter has been running for a period of time, it is necessary to clean the dust bag inside to ensure the dust removal effect. At present, the method used for dust removal is: use the reverse blower to i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/04
Inventor 孙树权闫洪起
Owner TIANJIN MAIRUI ENVIRONMENTAL PROTECTION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products