CN205235668U - Dedusting device - Google Patents

Abstract

The utility model discloses a dedusting device belongs to smoke and dust processing technique field. The utility model discloses a suction hood, mars trapper, dust remover body and draught fan loop through the pipeline between suction hood, mars trapper, dust remover body and the draught fan and are linked together, and the suction hood setting is in the smelting furnace top, and mars trapper lower part is cone structure, and inside stainless steel meshwork and the cyclone of being provided with of mars trapper, contain five spaces of mutual divided in the dust remover body, adjacent space upper portion is passed through the steel sheet and is kept apart, and adjacent space bottom keeps the connected state, all is provided with filtering cloth bag in every space and spouts the device with going. The utility model discloses can prevent effectively that mars from burning out the sack to optimize smoke and dust filtration efficiency.

Description

A kind of dust removal equipment

technical field

The utility model relates to the technical field of smoke and dust treatment, in particular to a dust removal device.

Background technique

During the operation of metallurgy, chemical industry, machinery manufacturing and mining industries, a large amount of dust is often generated, polluting the environment and endangering people's health. In addition, people's awareness of environmental protection is strengthened at any time, and people pay more and more attention to environmental improvement. The function of the dust removal equipment is to collect and process the waste gas and dust generated by the main engine or other devices, and discharge the gas that meets the requirements of environmental protection.

Most of the dust removal systems in the prior art use the first-stage pulse bag filter as the purification equipment for the dust-containing gas. Due to the high dust concentration of the dust-containing gas inhaled, some dust particles are large, sharp in shape, and grinded. Strong, some are also mixed with particles with sparks, the above-mentioned dust directly enters the filter chamber of the bag filter, directly washes, wears or burns the bag, so that the surface of the bag, especially the surface of the lower part of the bag, is quickly worn through or burnt. Wear, greatly shorten the service life of the bag, increase the frequency of replacing the bag and the workload of maintenance, and also greatly increase the operating cost of the user.

Regarding how to improve the dust removal effect of dust removal equipment, relevant patents have been published in the prior art, such as Chinese patent application number: 2011203269806, application date: September 2, 2011, and the name of the invention is: dust removal equipment for intermediate frequency furnaces, This application discloses a dust removal device for an intermediate frequency furnace. The dust removal device includes a fan, a motor, a dust collector body, a smoke collection hood, and a pipeline; the smoke collection hood is provided with a smoke collection port and a discharge port, and the smoke collection port Covering the area of the intermediate frequency furnace in the vertical state and the overturned state, it is used to capture the dust-containing flue gas generated at the intermediate frequency furnace; one end of the pipe is connected to the exhaust port of the smoke collection hood, and the other end of the pipe is connected to the The air inlet of the fan is connected and discharged to the dust collector body; the dust collector body includes a filter bag and a flower plate, the filter bag is used to filter the dust in the flue gas, and the flower plate is used to discharge the filtered flue gas. The dust removal equipment has the advantages of high efficiency, energy saving, and small footprint. However, the application does not pretreat the flue gas generated at the intermediate frequency furnace. The flue dust directly enters the interior of the dust collector body and contacts the filter bag, which may easily cause the filter bag to be damaged. Wear or burn, when collecting smoke and dust containing liquid droplets, it is easy to appear the phenomenon of wet bag sticking bag.

Utility model content

1. The technical problems to be solved by the utility model

The purpose of the utility model is to overcome the disadvantages of the prior art that the dust-removing bag is easy to wear or burn, and the dust-removing efficiency is low, and provides a kind of dust-removing equipment. Through the technical scheme of the utility model, the service life of the bag can be effectively improved, and the dust-removing efficiency can be improved. efficiency.

2. Technical solution

In order to achieve the above object, the technical solution provided by the utility model is:

A dust removal device of the present utility model comprises a dust collection hood, a pipeline, a spark catcher, a dust collector body and an induced draft fan. One end is connected to the spark catcher, the lower part of the spark catcher is a cone structure and fixed on the ground through a bracket, the upper part of the spark catcher is respectively provided with a pipe inlet and a pipe outlet, and the pipe is connected with the dust removal after the pipe is connected from the pipe outlet. The body of the dust collector is connected, and the body of the dust collector contains five spaces separated from each other. The upper part of the adjacent space is separated by a steel plate, and the bottom of the adjacent space is kept connected. Each space is equipped with a filter area and row spray Area, the filter area is equipped with a filter bag, the line spray area is set above the filter area and equipped with a line spray device, and the pipe is connected to the induced draft fan after being connected to the dust collector body.

As a further improvement of the utility model, a stainless steel mesh is arranged inside the spark catcher.

As a further improvement of the utility model, a cyclone separator is installed in the spark catcher.

As a further improvement of the utility model, the bottom of the spark catcher is provided with an ash discharge valve.

As a further improvement of the utility model, the filter cloth bag is a Flumes filter bag.

3. Beneficial effect

Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

(1) In the dust removal equipment of the present utility model, the lower part of the spark catcher is a conical structure, and stainless steel mesh and cyclone separator are respectively arranged inside the spark catcher, and the relatively high-temperature open flame sucked in from the dust collection hood The large dust particles first turn to the stainless steel mesh at high speed, then pass through the cyclone separator, and are filtered by sedimentation. The larger dust particles are discharged by gravity, and the lighter dust enters the dust collector body to continue dust removal, so as to avoid sparks entering the dust collector body and burning the filter bag. .

(2) In the dust removal equipment of the present utility model, the body of the dust collector contains five spaces separated from each other, the upper part of the adjacent spaces is separated by a steel plate, the bottom of the adjacent spaces is kept connected, and each space is equipped with a filter The bag and the row spraying device, the row spraying device will regularly purge and filter the dust absorbed on the bag; the upper part of the five spaces is isolated from each other, and the bottom is connected to each other. The setting of an isolated space can not only optimize the dust removal effect, prevent dust from accumulating too much on the filter bag and affect the filtration effect, but also prevent the dust from overflowing to other spaces when it is blown off, which is beneficial to the improvement of the environment in the dust collector body.

(3) In the dust removal equipment of this utility model, there are multiple rows of filter bags and row spray devices in the dust collector body, and the compressed air purged by the row spray devices into the filter bags is first dried to prevent long-term use. The cloth bag is damp and sticky, which affects the filtering effect, and the utility model has reasonable structure design, simple principle, and is convenient for popularization and use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural diagram of the Mars trap in Fig. 1 .

Explanation of the labels in the schematic diagram: 1. Vacuum hood; 2. Pipeline; 3. Spark catcher; 301. Support; 302. Pipeline outlet; 303. Pipeline inlet; 304. Stainless steel mesh; 305. Ash discharge valve; 4. Dust removal Device body; 401, filter cloth bag; 402, line spray device; 5, induced draft fan.

detailed description

In order to further understand the content of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1

As shown in Fig. 1 and Fig. 2, a kind of dedusting equipment of the present embodiment comprises a dust collection hood 1, a pipeline 2, a spark catcher 3, a dust collector body 4 and an induced draft fan 5, and the dust collection hood 1 is connected with a pipeline 2 , the other end of the pipe 2 is connected to the spark catcher 3, the lower part of the spark catcher 3 is a cone structure and fixed on the ground by a bracket 301, the upper part of the spark catcher 3 is respectively provided with a pipe inlet 303 and a pipe outlet 302, and the pipe 2 Connect the spark arrester 3 from the pipeline inlet 303, and connect it to the dust collector body 4 after connecting it from the pipeline outlet 302. The dust collector body 4 contains five spaces separated from each other, and the upper part of the adjacent space is separated by a steel plate , the bottom of the adjacent space remains connected, each space is provided with a filter area and a line spray area, the filter area is provided with a filter cloth bag 401, the line spray area is set above the filter area and is provided with a line spray device 402, the pipeline 2 Connected from the dust collector body 4, it is connected with the induced draft fan 5.

It should be noted that, in the dust removal equipment of this embodiment, the dust suction hood 1 is set above the smelting furnace to absorb the flue gas and dust generated during the smelting process, but when the workers scoop out the slag at the A large amount of dust will also be produced, which affects the workshop environment. In order to optimize the dust removal effect, the technicians of the present invention are also provided with a slag removal cover on the side of the dust suction cover 1. The position of the slag removal cover is just above the slag removal port, and The inside of the slag cover is connected with the dust collection cover 1, and the dust absorbed by the slag extraction cover and the dust collection cover 1 enters the Mars trap 3 through the pipe 2. According to the production needs of the workshop, the same pipe 2 can be connected to multiple The dust collection hood 1 can complete the dust suction work of multiple dust outlet points through a set of dust removal equipment, so as to reduce the production cost; Closed or closed valves, when some smelting furnaces are not in production, the dust collection hood 1 above it can be closed, which is conducive to improving the working efficiency of the whole set of dust removal equipment, specifically, two dust collection hoods are provided in this embodiment 1.

A stainless steel mesh 304 and a cyclone separator are arranged inside the Mars catcher 3, and the cyclone separator is arranged under the stainless steel mesh 304. The larger dust particles from the open flame first turn to the stainless steel mesh 304 at high speed for preliminary filtration, and then pass through the cyclone separator, and after sedimentation and filtration, the dust with larger particles is excreted by gravity and enters the lower cone structure of the Mars catcher 3. The design of body structure is more conducive to the falling and filtering of dust, and the bottom of the spark catcher 3 is also provided with an ash discharge valve 305, which is driven by a motor and can discharge the dust deposited at the bottom of the spark catcher 3.

The smoke and dust preliminarily filtered by the spark catcher 3 continue to enter the dust collector body 4, which contains five spaces separated from each other, and the adjacent spaces are separated by steel plates, but the steel plates do not separate the adjacent spaces. The two spaces are completely isolated, and the bottom of the adjacent space is still connected. Each space is equipped with a filter bag 401 and a row spray device 402. The filter bag 401 is a Flumes filter bag, and the Flumes filter bag has high temperature resistance. , Corrosion resistance, acid and alkali resistance, folding and wear resistance, and the Flumes filter bag has a high surface area coefficient, which increases the chance of dust collection, so that most of the dust is concentrated on the surface of the filter bag, making it difficult to penetrate To block the gap inside the filter bag, thereby reducing running resistance and improving filtration efficiency, the number of filter bags 401 can be set according to actual needs; row spraying device 402 includes row nozzles and nozzles, and the number of nozzles and nozzles can also be adjusted according to It needs to be set up actually. In this embodiment, five row nozzles are arranged in each space, which are respectively aimed at the filter bags 401 below them. One end of the row nozzles is connected with the air compressor and the dryer in turn, and the setting is carried out through PLC. The spraying device 402 can regularly purge the filter cloth bag 401, and the blowing air enters the filter cloth bag 401 to expand the filter cloth bag 401, thereby shaking off the dust adsorbed on the outer surface of the filter cloth bag 401, wherein the row spraying device 402 The air purged in the filter bag 401 is first compressed by an air compressor, and then dried by a dryer to prevent the filter bag 401 from being wet and sticky during long-term use, which will affect the filtering effect; the bottom of the dust collector body 4 is also provided with a The screw conveyor can regularly discharge the dust that has fallen from the purge; the technicians of the present invention design multiple spaces separated from each other for continuous dust removal, which not only optimizes the dust removal effect, but also prevents dust from accumulating too much on the filter bag 401, which affects the filtering effect , can also prevent the dust from overflowing to other spaces when it is blown off, which is conducive to improving the smoke and dust environment in the dust collector body 4; the clean gas filtered by the dust collector body 4 is discharged into the air through the pipe 2.

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (5)

1. A dust removal device, characterized in that it includes a dust collection hood (1), a pipe (2), a spark catcher (3), a dust collector body (4) and an induced draft fan (5), the dust collection hood ( 1) Set above the smelting furnace, the vacuum hood (1) is connected with a pipeline (2), the other end of the pipeline (2) is connected to the spark catcher (3), the lower part of the spark catcher (3) is The cone structure is fixed on the ground by a bracket (301), and the upper part of the spark catcher (3) is respectively provided with a pipe inlet (303) and a pipe outlet (302), and the pipe (2) is connected from the pipe outlet (302) Finally, it is connected with the dust collector body (4). The dust collector body (4) contains five spaces separated from each other. The upper part of the adjacent space is separated by steel plates, and the bottom of the adjacent space remains connected. Each space Both are equipped with filtering area and row spraying area, the filtering area is provided with filter bag (401), the row spraying area is set above the filtering area and equipped with row spraying device (402), the pipeline (2) runs from the dust collector body (4) Connect with the induced draft fan (5) after connecting. 2. The dust removal equipment according to claim 1, characterized in that: a stainless steel mesh (304) is arranged inside the spark catcher (3). 3. The dust removal equipment according to claim 2, characterized in that: a cyclone separator is installed in the spark catcher (3). 4. The dust removal equipment according to claim 1, characterized in that: the bottom of the spark catcher (3) is provided with a dust discharge valve (305). 5. The dust removal equipment according to claim 1, characterized in that: the filter cloth bag (401) is a Flumes filter bag.