CN213253650U

CN213253650U - Dust remover

Info

Publication number: CN213253650U
Application number: CN202021570177.2U
Authority: CN
Inventors: 申英俊; 樊云飞; 李莉莎; 周志盟
Original assignee: Beijing Bopeng Zhongke Environmental Protection Technology Co ltd
Current assignee: Beijing Bopeng Zhongke Environmental Protection Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-25
Anticipated expiration: 2030-07-30

Abstract

The embodiment of the application provides a dust remover, includes: the device comprises an air flow distribution plate, a sound wave agglomeration device, a seed spraying device and a silk screen dehydration device. Through increasing this dust remover, the flue gas after the coarse dust removal gets into the dust remover through the airflow distribution board below high-efficient silk screen dust remover along tangential direction. Then, the sound wave agglomeration device and the seed spraying device are sequentially arranged above the air flow distribution plate, so that fine particles in the flue gas collide and grow up, the number concentration of the particles is reduced, the average particle size is increased, and the particles are easy to capture. Then dust-containing water mist is collected through a wire mesh dewatering device, mist particles are caught and collected after colliding with the surface of a wire mesh, and flow downwards to the cross joint of the wire mesh and the wire mesh along the fine wires to be gathered into liquid drops, the liquid drops continuously grow larger until the gathered liquid drops reach a sufficient size, the liquid drops are overloaded and settled when the self weight exceeds the resultant force of the liquid surface tension and the rising buoyancy of gas, and the liquid drops enter a drainage water seal to be discharged through a drainage pipe at the bottom of a washing tower, so that the aim of fine dust removal is fulfilled.

Description

Dust remover

Technical Field

The application relates to the technical field of dust removal, particularly, this application relates to a dust remover.

Background

The existing upgrading and reforming project of the converter wet method and dry method dust removal system, the hot slag stewing dust removal project and the dust removal project of the steelmaking pellet production line adopt the traditional dust remover, the smoke emission concentration is not up to the standard, and the smoke emission concentration is difficult to reach 10mg/Nm or less³The requirements of (1).

SUMMERY OF THE UTILITY MODEL

The application provides a dust remover has solved the high problem of traditional dust remover fume emission concentration. The technical scheme is as follows:

in a first aspect, there is provided a dust separator comprising: the device comprises an air flow distribution plate, a sound wave agglomeration device, a seed spraying device and a silk screen dehydration device;

the air flow distribution plate, the sound wave agglomeration device, the seed spraying device and the silk screen dehydration device are sequentially arranged along the air flow direction of the dust remover.

Optionally, the airflow distribution plate is arranged at intervals along the airflow direction of the dust remover and is arranged at the lowest end of the dust remover.

Optionally, the sound wave agglomeration device is arranged above the air flow distribution plate by a preset distance.

Optionally, the preset distance is 1 meter.

Optionally, the included angle between the silk screen dewatering device and the horizontal direction is 5-10 degrees.

Optionally, the dust remover further comprises: a nozzle disposed above the wire dewatering device.

Optionally, the dust remover further comprises: and the sound insulation device is arranged at the periphery of the wire mesh dehydration device.

Optionally, the airflow direction is from bottom to top.

The beneficial effect that technical scheme that this application provided brought is: through increasing this dust remover, the flue gas after the coarse dust removal gets into the dust remover through the airflow distribution board below high-efficient silk screen dust remover along tangential direction. Then, the sound wave agglomeration device and the seed spraying device are sequentially arranged above the air flow distribution plate, so that fine particles in the flue gas collide and grow up, the number concentration of the particles is reduced, the average particle size is increased, and the particles are easy to capture. Then dust-containing water mist is collected through a wire mesh dewatering device, mist particles collide on the surface of a wire mesh, are captured and collected, flow downwards to the position of a cross joint of the wire mesh and the wire mesh along the fine wires, and are gathered into liquid drops, the liquid drops continuously grow larger until the accumulated liquid drops reach a sufficient size, and when the self weight exceeds the resultant force of the liquid surface tension and the rising buoyancy of gas, the liquid drops are overloaded and settled, enter a drainage pipe at the bottom of a washing tower, enter a drainage water seal and are discharged. Thereby achieving the purpose of fine dust removal.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.

Fig. 1 is a schematic structural diagram of a dust remover provided in an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the utility model provides a dust remover, as shown in figure 1, this dust remover includes: the device comprises an air flow distribution plate 1, a sound wave agglomeration device 2, a seed spraying device 3 and a silk screen dehydration device 4;

the air flow distribution plate 1, the sound wave agglomeration device 2, the seed spraying device 3 and the networking dewatering device 4 are sequentially arranged along the air flow direction of the dust remover. The airflow direction is from bottom to top.

The dust remover can be understood as a high-efficiency wire mesh dust remover, and the equipment is used in a fine dust removal stage after a washing tower or a venturi. After the flue gas is roughly dedusted by a washing tower or a venturi, the emission concentration generally cannot meet the emission concentration requirement. And a high-efficiency wire mesh dust remover is arranged behind the dust collector. The flue gas after coarse dust removal enters the dust remover through an air flow distribution plate below the high-efficiency wire mesh dust remover along the tangential direction. Then, the sound wave agglomeration device and the seed spraying device are sequentially arranged above the air flow distribution plate, so that fine particles in the flue gas collide and grow up, the number concentration of the particles is reduced, the average particle size is increased, and the particles are easy to capture. Then dust-containing water mist is collected through a wire mesh dewatering device, mist particles collide on the surface of a wire mesh, are captured and collected, flow downwards to the position of a cross joint of the wire mesh and the wire mesh along the fine wires, and are gathered into liquid drops, the liquid drops continuously grow larger until the accumulated liquid drops reach a sufficient size, and when the self weight exceeds the resultant force of the liquid surface tension and the rising buoyancy of gas, the liquid drops are overloaded and settled, enter a drainage pipe at the bottom of a washing tower, enter a drainage water seal and are discharged. Thereby achieving the purpose of fine dust removal.

The air flow distribution plate is arranged at intervals along the air flow direction of the dust remover and is arranged at the lowest end of the dust remover, air enters and exits from the lower part, and enters along a tangent line from the lower part of the high-efficiency silk screen dust remover, so that the uniformity of air flow is ensured. The high-efficiency wire mesh dust remover is arranged behind the smoke coarse dust removing equipment and used for a fine dust removing stage of smoke.

The air flow distribution plate is arranged at the lower part of the equipment, and when the flue gas passes through the coarse dust removal distribution plate, the dust-containing liquid drops collide on the baffle under the action of centrifugal force, so that the dust removal efficiency is improved. Meanwhile, the dust-containing flue gas rises along the distribution plate, the airflow passes through the airflow distribution plate for only 3/4 circles, and the airflow is at most one circle at the wall of the distribution plate, so that the resistance of the distribution plate is smaller than that of a baffle-free backflow type at the same inlet air speed, thereby reducing the rising resistance of the gas and reducing the pressure loss of the system.

The sound wave agglomeration device is arranged above the air flow distribution plate by a preset distance. The preset distance is 1 meter. The acoustic agglomeration device is arranged about 1m above the air flow distribution plate, and fine particles in the flue gas are collided and agglomerated by using an acoustic agglomeration technology to form large particles, so that the number of the fine particles is reduced, the average particle size of the aerosol is increased, and the removal efficiency is finally improved. In order to remove the agglomerated dust particles, atomized water drops are sprayed into the dehydrator by a seed spraying device to serve as seeds, agglomeration is changed into agglomeration, and the agglomerated particles are changed into dust-containing water mist. And (4) condensed dust-containing water mist. The water mist is collected by a wire mesh dewatering device, is captured and collected after being collided on the surface of the wire mesh, flows downwards to the cross joint of the wire mesh and the wire mesh along the fine wires, is gathered into liquid drops, the liquid drops continuously grow large until the gathered liquid drops reach a large enough size, and when the self weight exceeds the resultant force of the liquid surface tension and the rising buoyancy of the gas, the liquid drops are overloaded and subsided, and enter a drainage water seal at the bottom of a washing tower to be discharged. Thereby achieving the purpose of fine dust removal.

The included angle between the silk screen dewatering device and the horizontal direction is 5-10 degrees, so that dust-containing water drops can fall off conveniently.

The dust remover further comprises: a nozzle disposed above the wire dewatering device. The upper part of the silk screen dehydration device is provided with the nozzle, so that accumulated dust on the silk screen can be cleaned in time, and scaling can be prevented.

In order to prevent sound from being transmitted outwards to form standard-exceeding noise, a sound insulation device is designed outside the high-efficiency wire mesh dust collector. The sound insulation device is arranged on the periphery of the wire mesh dehydration device.

The agglomeration section sounding device can adjust the intensity of a sound field, and can also automatically control the opening and closing of a compressed gas valve according to the production process, thereby achieving the purpose of energy conservation.

The principle of this application embodiment structure, flue gas utilize the dust moist, collision principle in the coarse dust removal stage, and the dust is fully moist back at the barrel in the continuous motion in-process collision formation contains the dirt water droplet greatly simultaneously. A drainage water seal is arranged at the lower part of the washing tower, and after the flow velocity of a part of large dust-containing liquid drops in the gas is reduced, the dust-containing liquid drops settle by the self gravity; the dust-containing liquid drops are removed by the inertia principle due to the change of the direction of the air flow, so as to achieve coarse dust removal.

After the flue gas after coarse dust removal enters the high-efficiency wire mesh dust remover, dust-containing liquid drops in the dust-containing flue gas collide with the air flow distribution plate for further removal, fine particles in the flue gas collide and grow by using the sound wave agglomeration device, so that the number concentration of the particles is reduced, the average particle size is increased, the particles are easy to capture, atomized water drops are sprayed into the particles by the seed spraying device to serve as seeds, the particles are agglomerated into condensation, and the agglomerated particles are changed into dust-containing water mist. And (4) condensed dust-containing water mist. The water mist is collected by a wire mesh dewatering device, is captured and collected after being collided on the surface of the wire mesh, flows downwards to the cross joint of the wire mesh and the wire mesh along the fine wires, is gathered into liquid drops, the liquid drops continuously grow large until the gathered liquid drops reach a large enough size, and when the self weight exceeds the resultant force of the liquid surface tension and the rising buoyancy of the gas, the liquid drops are overloaded and subsided, and enter a drainage water seal at the bottom of a washing tower to be discharged. Thereby discharging the particulate matters in the flue gas and achieving the requirement of ultralow emission.

The dust remover has the characteristics of small occupied space, low modification cost, short modification period and high dust removal efficiency. The high-efficiency silk screen dust remover is internally provided with a sound wave agglomeration device and a seed spraying device. Can successfully remove fine dust particles in the flue gas. After treatment, the concentration of the discharged flue gas is less than or equal to 10mg/Nm³And the ultra-low emission standard is achieved.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A precipitator, comprising: the device comprises an air flow distribution plate, a sound wave agglomeration device, a seed spraying device and a silk screen dehydration device;

2. A precipitator in accordance with claim 1, wherein the distribution plates are spaced along the direction of the airflow of the precipitator and are disposed at the lowest end of the precipitator.

3. A precipitator in accordance with claim 1, wherein the acoustic agglomeration device is positioned a predetermined distance above the gas flow distribution plate.

4. A precipitator in accordance with claim 3, wherein the predetermined distance is 1 meter.

5. The dust remover according to claim 1, wherein the wire dewatering device forms an angle of 5-10 degrees with the horizontal direction.

6. A precipitator in accordance with claim 1, further comprising: a nozzle disposed above the wire dewatering device.

7. A precipitator in accordance with claim 1, further comprising: and the sound insulation device is arranged at the periphery of the wire mesh dehydration device.

8. A precipitator in accordance with claim 1, wherein the airflow direction is bottom-up.