Pulse bag filter

A technology of pulse cloth bag and dust collector, which is applied in the direction of chemical instruments and methods, separation of dispersed particles, filtration of dispersed particles, etc., can solve the problem of dust pollution in the surrounding production environment that cannot be treated in a timely or perfect manner, reduces dust removal efficiency, and cleans In order to achieve the effect of widening the scope of use, improving reliability and prolonging the service life

Inactive Publication Date: 2010-03-17
XIANGXIANG MACHINERY FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to maintain the cleanliness of the production environment, places polluted by dust must be cleaned at any time. At present, most of the cleaning work is done by installing a pulse-jet bag filter. However, during the dust removal process, the pulse-jet bag filter The filter bag of the blown bag filter will slowly stick to the upper layer of dust, which will reduce the dust removal efficiency after a long period of time. Therefore, the surface of the filter bag is often cleaned according to different usage conditions in order to restore a goo

Method used

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Examples

Experimental program
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Embodiment 1

[0017] Embodiment 1: The present invention is composed of a clean air chamber 1, a filter bag 5, a filter bag skeleton 4, a filter bag 6, an injection device 8, an ash hopper 9, a bracket 10, a gate valve 11 and a star-shaped rotary valve 12, etc. Composition, and a Venturi tube is installed in the dust collector. The nozzle pipe of the injection device 8 is connected with a supersonic nozzle in a movable connection, and the centerline of the supersonic nozzle is aligned with the centerline of the bag hole.

[0018] The dust cleaning process of the general pulse bag filter is that the pulse air flow controlled by the pulse valve is injected into the filter bag through the injection hole (the hole drilled in the pipe) on the injection pipe. The filter bag is rapidly expanded, and when it expands to the limit, a large impact vibration is generated, so that the dust adhering to the filter bag is peeled off under the action of inertia, and settles in the ash hopper. When designing...

Embodiment 2

[0020] Embodiment 2: the present invention can also install venturi tube on the flower plate of the dust collector, and the described venturi tube adopts a trapezoidal venturi tube with a trapezoidal cross-sectional shape, and the upper diameter of the trapezoidal venturi tube is greater than the lower diameter, and The diameter of the lower part is consistent with the diameter of the filter bag.

[0021] The Venturi tube is an important accessory of the pulse bag filter. The longitudinal section shape of the traditional Venturi tube is close to a lowercase X shape. The more common Venturi tube is installed in the cage frame under the flower plate of the pulse bag filter. The purpose of using the Venturi tube on the pulse dust collector is to keep the blowing pressure, concentrate the diffused airflow, make the bottom of the Venturi tube form the maximum pressure airflow, and effectively transmit the cleaning pressure to the filter bag bottom for the purpose of dust removal. ...

Embodiment 3

[0025]Embodiment 3: the present invention can reasonably set the space distribution in the filter bag chamber, and the best way is to make the ratio of the space occupied by the clean air in the filter bag to the space occupied by the dust outside the filter bag (abbreviated as "clean, dust Space ratio") ranges from 0.2 to 0.45. The net-to-dust space ratio refers to the ratio of the space occupied by the clean air inside the filter bag to the space occupied by the dust outside the filter bag in the filter bag chamber of the pulse bag filter. This concept is summed up by the company's many years of experiments, research and engineering practice, and is used to guide the important parameter values ​​of the filter bag room design. It is especially important to design a pulse dust collector that collects high-concentration, high-viscosity, high-grinding and ultra-fine dust. To improve the cleaning effect of the filter bag and reduce the resistance of the dust collector, in additi...

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Abstract

The invention discloses a pulse bag filter, mainly solving the technical problems that the existing pulse bag filter has poor dust-removing effect and short service life and easily occur equipment accident when be used under high-temperature working condition and the like. The technical scheme thereof has the following key points: the pulse bag filter consists of a gas-purifying chamber (1), a filter bag (5), a filter bag skeleton (4), a filter bag (6), a blowing device (8), an ash hopper (9), a bracket (10), an inserting board valve (11) and a star-shaped rotating valve (12), wherein the dustremover is internally provided with a Venturi tube; a nozzle tube of the blowing device (8) is coupled with an ultrasonic nozzle in a movable coupling manner; the central line of the ultrasonic nozzle aligns to the central line of a bag hole; and a ladder-type Venturi tube is adopted. By adopting an ultrasonic draining nozzle, the ladder-type Venturi tube and the adjustable sealed rotating valve,the invention greatly improves ash-cleaning effect, prolongs the service life of the filter bags, expands the use range of the pulse bag filter, improves the use reliability, reduces use cost and canbe used under high-temperature working condition.

Description

technical field [0001] The invention relates to a pulse dust collector. Background technique [0002] With the development of modern industry, the pollution of dust to the environment is becoming more and more serious. It has become the consensus of the Chinese people to control the pollution of dust and purify the living environment of human beings. In order to maintain the cleanliness of the production environment, places polluted by dust must be cleaned at any time. At present, most of the cleaning work is done by installing a pulse-jet bag filter. However, during the dust removal process, the pulse-jet bag filter The filter bag of the blown bag filter will slowly bond the upper layer of dust, which will reduce the dust removal efficiency after a long period of time. Therefore, the surface of the filter bag is often cleaned according to different usage conditions in order to restore a good dust removal effect. , the injection system of the pulse-jet bag filter commonly u...

Claims

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Application Information

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IPC IPC(8): B01D46/02B01D46/04
Inventor 胡树金
Owner XIANGXIANG MACHINERY FACTORY
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