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Large capacity environmental protection dust collector

A technology of processing capacity and dust collector, which is applied in chemical instruments and methods, separation of dispersed particles, filtration of dispersed particles, etc., can solve the problems of bulky size, low efficiency of bag filter air, affecting the volume of dust collector, etc., and achieve the improvement of air filtration efficiency , reduced volume, large air filtration effect

Inactive Publication Date: 2015-08-05
浙江文国重工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the current bag, such as figure 1 As shown, one end is closed and the other end is open. When filtering air, the gas entering the interior of the bag from the 4th wall of the bag can only be discharged from one end of the bag 4. According to the fluid law, the airflow path is roughly as follows: figure 1 The dotted line with the arrow in the middle shows; it can be seen that the airflow far from the opening of the bag has a small inclination angle with the surface of the bag when it enters the bag, which seriously affects the air filtration efficiency of the air filter pores on the surface of the bag; the specific analysis is as follows figure 2 As shown, the rectangle shows the air filter pores on the surface of the bag, the inclination angle between the airflow direction and the air filter pores is θ, and the length of the filter air pores is h, then under this angle, the actual length that the airflow can pass only figure 2 In l=h*sinθ, when the area of ​​the air filter pores is s, only s*sinθ is actually opened by the airflow. It can be seen that when the inclination angle θ is smaller, the filter air efficiency of the bag is lower
However, in the current structure of the bag filter, the surface part of the bag far away from the opening of the bag is as follows: figure 1 As shown, they all have a small θ angle. It can be seen that in the current bag filter, the air filtering capacity of the bag has not been fully utilized, which leads to the current bag is too many and long, seriously affecting the volume of the filter, especially It is a large-capacity dust collector, and its volume is often extremely large

Method used

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  • Large capacity environmental protection dust collector
  • Large capacity environmental protection dust collector
  • Large capacity environmental protection dust collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] exist image 3 In the shown embodiment one, the large-capacity environmental protection dust collector includes an air filter chamber 1, an injection chamber 2, 2', an ash hopper 3, a cloth bag 4, and an injection system.

[0022] The cloth bag 4 runs through the air filter chamber 1 transversely, and is fixed on the porous plate 11, so that the gas in the air filter chamber can only enter the cloth bag 4 before entering the spray chamber 2, 2'.

[0023] Both ends of each cloth bag 4 are open ends, and the center of the internal channel of each cloth bag is provided with a partition layer 41; the injection system includes a high-pressure air bag 5, and injection parts 6, 6'; the injection chamber 2, 2' has two, symmetrically distributed on both sides of the air filter chamber 1, each spray chamber is respectively provided with a said blowing part; the two ends of each cloth bag are respectively facing a nozzle 60 of said blowing part , 60'; the housing of the air filte...

Embodiment 2

[0033] Figure 5 Shown is the second embodiment of this large-capacity environmental protection dust collector, which differs from the first embodiment in that the cloth bag is thin in the middle and thick on both sides, and is in the shape of a long circular table with two symmetrical sections connected.

[0034] Considering that even if the two ends of the cloth bag 4 are symmetrically discharged, except for the central part of the cloth bag, the rest of the air on the surface of the cloth bag still cannot enter the cloth bag vertically. The taper is equivalent to turning the surface of the bag through a certain angle relative to the direction of the intake air flow. When the taper is appropriate, the dust-laden gas can enter the bag from the surface of the bag at an angle closer to the vertical on the whole, making the bag The air filtration efficiency has been greatly improved. After testing, the appropriate taper is 0.347~0.518; since arcsin(0.347 / 2)=10°, arcsin(0.518 / 2)...

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Abstract

The invention provides an environmentally-friendly dust remover with large treatment capacity. The environmentally-friendly dust remover comprises a gas filtering chamber, two jetting chambers, an ash bucket, cloth bags and a jetting system, wherein the cloth bags horizontally penetrate through the gas filtering chamber; the two ends of each cloth bag are opened ends; an insulating layer is arranged in the center of the inner passage of each cloth bag; the jetting system comprises a high-pressure air pocket and jetting parts; the jetting chambers are symmetrically distributed on the two sides of the gas filtering chamber; the jetting parts are arranged inside jetting chambers; the two ends of each cloth bag respectively and directly face to the nozzle of one jetting part; an air inlet is formed in the casing of the gas filtering chamber; air outlet passages are symmetrically led out from the casings of the jetting chambers; the ash hopper is arranged below the gas filtering chamber. The dust remover provided by the invention has the advantages as follows: a small number of cloth bags are adopted to achieve relatively large gas filtering amount, compared with the cloth-bag dust remover with equal gas filtering amount, the dust remover is smaller in size.

Description

technical field [0001] The invention relates to the field of industrial dust collectors, in particular to a bag dust collector. Background technique [0002] In the field of industrial dust removal, industrial dust collectors are usually used; among them, the bag filter is a typical model of industrial dust collectors; the basic principle is that a certain number of cloth bags are set in a filter room, and the dusty gas enters from the air inlet. After the air filter chamber, it can only drill into the cloth bag and flow out of the air filter chamber from the opening end of the cloth bag, and enter the air outlet. Since the dust cannot pass through the surface of the cloth bag, the filtered gas dust is filtered out. [0003] For the current bag filter, in order to increase the amount of filtered air per unit time, the commonly used method is to increase the number of bags, or increase the length of the bag, which will lead to a significant increase in the volume of the bag f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/02
Inventor 张文国
Owner 浙江文国重工机械有限公司
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