CN105327585A - Integrated dust collector device and dedusting method - Google Patents

Abstract

The invention discloses an integrated dust collector device and a dust removal method, wherein the device includes a cyclone dust collector, a packing filter dust collector and a bag filter, and the cyclone dust collector includes a cyclone air inlet, a cyclone cylinder body, an air outlet and an ash outlet The packing filter dust collector includes a packing support orifice plate, a packing filter air inlet and a packing filter air outlet; the packing filter air inlet is connected with the cyclone dust removal air outlet; the air outlet of the packing filter directly enters the bag dust collector through the ash storage plate of the bag filter The airflow to be dusted enters the integrated dust collector device through the cyclone dust removal inlet, and finally reaches the dust removal bag after passing through the cyclone dust collector and the packing support orifice. The present invention utilizes the respective characteristics of the cyclone dust removal method, the filter dust removal method and the bag dust removal method to make the three cooperate with each other to fully remove large dust particles, light small dust particles and fine dust particles in the airflow, and the dust removal effect is good.

Description

An integrated dust collector device and dust removal method

technical field

The invention belongs to the field of atmospheric environment treatment technical equipment and methods, and more specifically relates to an integrated dust collector device and a dust removal method.

Background technique

Dust removal is one of the most important means in air pollution control. Dry dust removal is the most important form in engineering. Common dry dust removal methods include cyclone dust removal, filter dust removal and bag dust removal. The investment of cyclone dust removal equipment is small, and the wind resistance is small, but the removal effect on fine particles is poor. The cost of filter dust removal is also low, but the wind resistance is relatively large, and the dust removal effect on fine particles is also poor, and the filler is easy to block, so it is mostly used for high temperature dust removal. Bag dust removal can remove fine particles and has high dust removal efficiency. It is the most reliable dust removal method at present, but the investment in equipment is large, and back blowing is frequently required to remove the clogged layer. In engineering, in order to reduce the investment of the dust removal system, cyclone dust removal and bag dust removal are often used together.

Although the combined use of cyclone dust removal and bag dust removal has been used in the prior art, the common way of combined use has the problems of large wind resistance, large land occupation, and large equipment investment. In the existing combined dust collector, each stage of dust collector has a set of air inlet and outlet, and the inlet and outlet of each dust collector need to pass through a large gas collection port. In the current method, people often mechanically manufacture each dust collector separately, and then connect them with pipes. In this way, in the middle of the combination of the outlet of the previous stage dust collector and the inlet of the next stage, there is a lot of space and pipelines for worrying, which not only causes waste of materials, occupation of space, but also increases Wind resistance (especially for the use of bends); and when the outlet of the previous stage dust collector and the inlet of the next stage are integrated into one, and the connecting pipe is removed, there is also the difficulty of dust removal from the previous stage dust collector; if If there is no special structure, the dust separated in the middle will enter the next-stage dust collector, causing blockage of the next-stage dust collector and affecting the normal operation of the dust collector. In addition, the existing combination method needs to rely more on the bag dust removal section, resulting in an excessive load of bag dust removal. Due to the high cost of bag dust removal and frequent back blowing, it is easy to cause a high degree of stability to electrical devices and control systems. Reliance, in the absence of professional technical maintenance personnel, it is easy to cause the bag filter to stop.

Contents of the invention

In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide an integrated dust collector device and a dust removal method, wherein by improving the connection relationship of its key components, the internal structure of each component, etc., compared with the prior art The ratio can effectively solve the problem of low dust removal efficiency, and the integrated dust collector device uses the characteristics of the cyclone dust removal method, filter dust removal method and bag dust removal method to make the three cooperate with each other to fully remove large dust particles and light dust particles in the airflow. Small dust particles and fine dust particles, the dust removal effect is good.

In order to achieve the above object, according to one aspect of the present invention, an integrated dust collector device is provided, which is characterized in that it includes a cyclone dust collector, a packing filter dust collector and a bag filter, wherein,

The cyclone dust collector includes a dust-containing gas inlet, a cyclone dust removal cylinder, a cyclone dust removal outlet and a cyclone dust removal ash outlet, the dust-containing gas inlet, the cyclone dust removal outlet and the cyclone dust removal outlet Ash ports are all distributed on the cyclone dust removal cylinder;

The packing filter dust remover includes a packing support orifice plate, a packing filter air inlet and a packing filter bed, and the packing support orifice plate is located between the packing filter air inlet and the packing filter bed;

The bag filter includes a dust removal bag, a bag dust removal air outlet and a bag dust removal ash outlet, the bag dust removal air outlet is located above the dust removal bag, and the bag dust removal ash outlet is located below the dust removal bag;

The packing filter air inlet is directly connected with the cyclone dust removal air outlet; the gas flowing out of the packing filter bed layer directly enters the bag filter;

The airflow to be dedusted enters the integrated dust collector device through the dust-laden gas inlet, and reaches the dust bag after passing through the cyclone dust collector, the packing support orifice and the packing filter bed, and finally It is output through the air outlet of the bag dust collector.

As a further preference of the present invention, the filler filter dust collector also includes a filter dust chamber, a filter dust outlet, a filler inlet, and a filler outlet; The front of the orifice plate is connected with the filter dust removal ash outlet; the filler inlet and the filler outlet are both located beside the filler supporting orifice plate for renewing the filler.

As a further preference of the present invention, the dust bag is located inside the bag cover, and the bag cover also includes a bag hanging rack and a bag replacement door; the bag hanging rack is located next to the dust bag and is used to fix the dust bag ; The bag replacement door is located on the bag cover and is used to open and close the bag cover.

As a further preference of the present invention, the packing support orifice plate is also provided with a vibrating mechanism for vibrating the packing support orifice plate.

As a further preference of the present invention, air pressure monitors are provided before and after the air flow passes through the packing support orifice for monitoring the air pressure of the air flow.

As a further preference of the present invention, the cyclone dust collector, the packing filter dust collector and the bag filter are placed vertically, the cyclone dust collector is located below, the packing filter dust collector is located in the middle, and the The bag filter is located above.

As a further preference of the present invention, the bag filter also includes a bag hole plate, a bag dust removal and ash storage plate and a bag dust removal ash outlet, the bag hole plate is connected to the dust bag; the bag dust removal and ash storage plate is located Below the orifice plate of the bag, there are a number of ventilation pipe bundles distributed on the dust removal and ash storage plate of the bag; between.

According to another aspect of the present invention, the present invention provides a method for dust removal using the above-mentioned integrated dust collector device, which is characterized in that it includes the following steps:

(1) The dust-containing gas to be dedusted first enters the integrated dedusting device from the dust-containing gas inlet, and after being centrifugally dedusted by the cyclone dedusting cylinder, the dust particles in the gas are deposited on the bottom of the cyclone dedusting cylinder , the gas after cyclone dust removal then enters the packing filter dust collector;

(2) The gas entering the filler filter dust collector is further filtered to remove dust particles in the gas through the filler filter bed, and the gas after filler filter dust removal then enters the bag filter;

(3) The gas entering the bag filter passes through the dust bag to further remove the dust particles in the gas, and the gas after bag dust removal is finally output through the bag dust outlet.

Compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

1. The integrated dust collector device of the present invention integrates the three methods of cyclone dust removal, filler filter dust removal and bag dust removal in an integral dust collector in sequence, and arranges them in a pressed, middle and upper manner respectively, which can further reduce Bag dust removal investment and operating costs. Because the two-stage dust removal of the cyclone dust removal device (that is, the cyclone dust collector) and the packing filter dust removal device (that is, the packing filter dust collector) is added before the bag dust removal, and the three of them are arranged in a three-dimensional arrangement of the lower, middle and upper in space, the front The air outlet of the first-stage dust removal device and the air inlet of the second-stage dust removal device are combined into one, and the connecting pipelines of the front and rear two-stage dust collectors are connected with zero wind resistance, which saves equipment cost and floor space, and is especially suitable for small dust removal conditions. . At the same time, the cloth bag does not use the method of compressed air back blowing, but the method of replacing the blocked bag in time, so as to reduce the equipment investment of back blowing and the unreliability of the operation of the dust removal system caused by the failure of the back blowing system.

2. The present invention integrates the three processes of cyclone, filtration and bag dust removal into one dust collector device. The device and the dust removal method corresponding to the device are based on the fluid mechanics principle of air flow upwards, that is, the dust-containing air flow (i.e. the air flow to be dedusted) ) first passes through the cyclone dust removal unit, and the large dust particles are first deposited in the cyclone dust removal unit under the action of centrifugal force to achieve primary dust removal; the light and small dust particles float up and directly enter the packing filter dust removal unit near the top, most of the dust particles are removed Intercepted in the packing filter dust removal unit; the finer dust particles continue to float up, directly enter the bag dust removal unit near the higher top, and are intercepted by the bag. The high-level channel formed by the dust collector system integrating these three processes, like the high chimney, enables the air flow to have a certain self-absorption and floating ability, reducing wind resistance. At the same time, part of the dust particles themselves are deposited in the dust removal unit below due to the upward gravitational resistance.

3. The present invention is also provided with a vibrating mechanism on the easily blocked packing filter dust collector (especially the packing supporting orifice), which can periodically or irregularly vibrate the packing supporting orifice, so that the particles attached to the packing supporting orifice (even the The dust in the packing gap is shaken off to the dust accumulation chamber; at the same time, the dust accumulation chamber is ventilated through the dust removal outlet through the filter, and the dust blocked on the packing support orifice or even in the packing gap can be discharged, so as to realize the blockage inside the packing dust removal mechanism clean up.

The present invention integrates three commonly used dust removal methods, adopts direct docking without wind resistance between the three dust collectors, and adopts methods such as airflow rising sequentially, so as to overcome the shortcomings of conventional dust collectors, such as large wind resistance and large area occupation. The dust-laden gas to be dedusted first passes through the cyclone dust collector to remove large dust particles in the gas, then passes through the filler filter dust collector to remove fine dust in the gas, and finally passes through the bag filter to remove finer dust in the gas. In addition, because the front stage of the bag filter is equipped with cyclone dust removal and packing filter dust removal, it can reduce the load of the bag filter, reduce the frequency of back blowing, reduce the energy consumption of compressed air during the back blowing process, improve its working stability, and prolong the life of the bag filter. The service life of the bag filter.

On the other hand, the present invention has taken measures on mass transfer, through a reasonable method of excessive ash storage and deposition in the middle, the dust in the transition section can be deposited and removed in time. For example, the dust storage plate and its small tube bundles are reasonably designed under the bag filter, which can not only ensure the air-free passage between the packing filter dust removal and the bag filter, but also ensure that the dust separated from the bag filter will not return to the packing filter. The filter bed of the dust collector. The dust particles collected in the cyclone dust collector, packing filter dust collector and bag filter can be processed in time (through the ash outlet, etc.) without affecting the work of the integrated dust removal device, which is convenient for equipment maintenance. For example, the space formed between the bag hole plate and the bag dust removal and ash storage plate can be used to collect the dust in the dust removal bag. The ventilation tube bundle and the bag dust removal ash outlet are also located between the bag hole plate and the bag dust removal and ash storage plate. The ventilation tube bundle is The air flow channel between the packing filter dust collector and the bag filter (that is, the gas comes to the air inlet of the bag through the ventilation tube bundle, and then enters the dust bag). The dust falls back to the filler to filter the dust. The height of the ventilation tube bundle (that is, the position of the air outlet of the ventilation tube bundle) is higher than a certain distance from the ash storage plate. By timely ash removal to control the thickness of the deposited dust on the ash storage plate, it is possible to avoid the blockage of the ventilation tube bundle outlet and avoid bag dust removal and filtration. The dust is returned to the packing filter dust collector.

Description of drawings

Fig. 1 is a schematic diagram of the integrated dust collector device of the present invention;

In the figure, the meanings of the reference signs are as follows: 1 is the dust removal bag, 101 is the bag dust removal cylinder, 102 is the bag dust removal air outlet, 103 is the small ventilation tube bundle, 104 is the bag dust removal and ash storage plate, and 105 is the bag dust removal ash output 2 is the filler filter dust collector, 201 is the filler inlet, 202 is the filler outlet, 203 is the filter and dust accumulation chamber, 3 is the filler support orifice, 4 is the filter and dust outlet; 5 is the cyclone dust removal riser, 6 is a cyclone dust collector, 601 is a cyclone dust removal cylinder, 7 is a cyclone dust removal ash outlet, and 8 is a dusty gas inlet.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

Example 1

As shown in Figure 1, the integrated dust collector device includes dust bag 1, packing filter dust collector 2 and cyclone dust collector 6 from top to bottom, and the dust bag 1, packing filter dust collector 2 and cyclone dust collector 6 are vertical placed, among them,

Cyclone dust collector 6 comprises cyclone dust removal inlet (i.e. dusty gas inlet 8) and cyclone dust removal gas outlet;

The filler filter dust collector 2 includes a filler support orifice plate 3, a filler filter air inlet and a filler filter air outlet, and the filler support orifice plate 3 is located between the filler filter inlet and the filler filter air outlet; the filler filter inlet and the cyclone dust collector Air outlet connection (for example, connect the flange at the air outlet of the cyclone dust collector to the flange at the air inlet of the packing filter); the air outlet of the packing filter is connected to the dust bag 1;

The airflow to be dedusted enters the integrated dust collector device through the cyclone dust removal inlet, and finally reaches the dust removal bag 1 after passing through the cyclone dust collector 6 and the packing support orifice plate 3 .

The filler filter dust remover 2 also includes a dust accumulation chamber, a filter dust removal ash outlet 4, a filler inlet 201 and a filler outlet 202; the filler dust removal dust accumulation chamber 203 is located in front of the air flow through the filler support orifice plate 3, and is connected with the filter dust removal ash Port 4 is connected; both the filler inlet and the filler outlet are located next to the filler support orifice plate 3 for updating the filler.

The dust bag 1 is connected to the air outlet of the packing filter through the bag hole plate, and the bag hole plate is located above the packing filter dust collector; the dust bag 1 is located in the bag cover, and the bag cover also includes a bag hanging frame and a bag replacement door; the dust bag 1 It can be multiple, and the cloth bag hanger is located beside the dust removal cloth bag 1 and is used for fixing the dust removal cloth bag 1. The bag replacement door is located on the bag cover and is used to open and close the bag cover. The other end of each cloth bag is closed, and the outer cover of the cloth bag is connected with the tank body of the filler filter dust collector by flange. The clogged bag does not use online dust cleaning (such as online back blowing to remove the clogged layer, etc.), but adopts the method of grouping and regularly replacing the bag (for example, open the bag replacement door, and remove the dust bag that needs to be replaced from the bag hanger) , and install the new dust removal bag on the bag hanger, and finally close the bag replacement door), remove the blocked bag and go offline to suck ash on a special mechanism and wash it with water for repeated use.

A vibrating mechanism is also provided on the packing supporting orifice 3 for vibrating the packing supporting orifice 3 to shake off the dust accumulated on the packing supporting orifice 3 . Falling dust can be accumulated in the dust accumulation chamber, and finally clean up by filter dust removal ash outlet 4.

Since the filler filter dust remover 2 is for filtering dust, it is more likely to be blocked. Therefore, the present embodiment also arranges at least one air pressure monitor respectively in front and rear of the air flow through the packing support orifice plate 3 (i.e. below and above the packing layer, and the packing support orifice plate 3 is used to place the packing layer). It is used to monitor the air pressure of the air flow, so as to judge the air flow blockage of the packing layer. When there is a significant difference between the front air pressure monitor reading and the rear air pressure monitor reading, it indicates that the packing support orifice or packing layer of the packing filter dust collector is blocked and needs to be replaced or cleaned.

The method for dust removal through the above-mentioned integrated dust collector device may include the following steps:

(1) The dust-containing gas to be dedusted first enters the integrated dedusting device from the dust-containing gas inlet, and after being centrifugally dedusted by the cyclone dedusting cylinder, the dust particles in the gas are deposited on the bottom of the cyclone dedusting cylinder , the gas after cyclone dust removal then enters the packing filter dust collector;

(2) The gas entering the filler filter dust collector is further filtered to remove dust particles in the gas through the filler filter bed, and the gas after filler filter dust removal then enters the bag filter;

(3) The gas entering the bag filter passes through the dust bag to further remove the dust particles in the gas, and the gas after bag dust removal is finally output through the bag dust outlet.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (8)

1. an integrated separator device, is characterized in that, comprises cyclone dust collectors (6), filler filter collector (2) and sack cleaner, wherein,

Described cyclone dust collectors (6) comprise dusty gas air inlet (8), cyclone dust removal cylindrical shell (601), cyclone dust removal gas outlet and cyclone dust removal ash hole (7), and described dusty gas air inlet (8), described cyclone dust removal gas outlet and described cyclone dust removal ash hole (7) are distributed on described cyclone dust removal cylindrical shell (601);

Described filler filter collector (2) comprises packing support orifice plate (3), filler filtered air inlet and filler and filters bed, and described packing support orifice plate (3) is filtered between bed at described filler filtered air inlet and described filler;

Described sack cleaner comprises dust-removal cloth-bag (1), bag-type dust gas outlet (102) and bag-type dust ash hole (105), described bag-type dust gas outlet (102) is positioned at described dust-removal cloth-bag (1) top, and described bag-type dust ash hole (105) is positioned at described dust-removal cloth-bag (1) below;

Described filler filtered air inlet directly docks with described cyclone dust removal gas outlet; Described filler filter bed layer effluent air directly on enter described sack cleaner;

Treat that the air-flow of dedusting enters this integrated separator device by described dusty gas air inlet (8), after filtering bed through described cyclone dust collectors (6), described packing support orifice plate (3) and described filler, arrive described dust-removal cloth-bag (1), and export eventually through described bag-type dust gas outlet (102).

2. integrated separator device as claimed in claim 1, it is characterized in that, described filler filter collector (2) also comprises dust removal by filtration laying dust room (203), dust removal by filtration ash hole (4), filler import (201) and filler outlet (202); Described dust removal by filtration laying dust room (203) is positioned at the front of packing support orifice plate (3) described in described airflow passes, and is connected with described dust removal by filtration ash hole (4); It is other that described filler import (201) and described filler outlet (202) are all positioned at described packing support orifice plate (3), for upgrading filler.

3. integrated separator device as claimed in claim 1, it is characterized in that, described dust-removal cloth-bag (1) is positioned at cloth bag outer cover, and this cloth bag outer cover also comprises cloth bag pylon and door changed by cloth bag; It is other that described cloth bag pylon is positioned at described dust-removal cloth-bag (1), for fixing described dust-removal cloth-bag (1); Described cloth bag is changed door and is positioned on described cloth bag outer cover, for cloth bag outer cover described in folding.

4. integrated separator device as claimed in claim 1, is characterized in that, described packing support orifice plate (3) is also provided with percussion mechanism, for vibrating this packing support orifice plate (3).

5. integrated separator device as claimed in claim 1, is characterized in that, described in described airflow passes, the front of packing support orifice plate (3) and rear are provided with pressure monitor, for monitoring the air pressure of described air-flow.

6. integrated separator device as described in claim 1-5 any one, it is characterized in that, described cyclone dust collectors (6), described filler filter collector (2) and described sack cleaner three vertically place, described cyclone dust collectors (6) are positioned at below, described filler filter collector (2) is positioned at centre, and described sack cleaner is positioned at top.

7. integrated separator device as described in claim 1-6 any one, it is characterized in that, described sack cleaner also comprises cloth bag orifice plate, bag-type dust deposits hawk (104) and bag-type dust ash hole (105), and described cloth bag orifice plate is connected with described dust-removal cloth-bag (1); Described bag-type dust deposits the below that hawk (104) is positioned at described cloth bag orifice plate, and this bag-type dust is deposited on hawk (104) and is also distributed with some ventilations tube bank (103); Described ventilation tube bank (103) and described bag-type dust ash hole (105) are all positioned at described bag-type dust and deposit between hawk (104) and described cloth bag orifice plate.

8. use integrated separator device as described in claim 1-7 any one to carry out the method for dedusting, it is characterized in that, comprise the following steps:

(1) treat that first the dusty gas of dedusting enters this integrated dust arrester from dusty gas air inlet, after cyclone dust removal cylindrical shell centrifugal dust-removing, dust granules in described gas is deposited on the bottom of described cyclone dust removal cylindrical shell, and the gas after cyclone dust removal then enters filler filter collector;

(2) gas entering described filler filter collector filters bed through filler and filters the dust granules removed in described gas further, and the gas after filler dust removal by filtration then enters sack cleaner;

(3) gas entering described sack cleaner removes the dust granules in described gas further through dust-removal cloth-bag, the gas after bag-type dust exports eventually through bag-type dust gas outlet.