CN208482197U - Cleaner - Google Patents

Abstract

The utility model provides a kind of cleaner, is related to the technical field of environmental protection equipment.Cleaner provided by the utility model includes: preseparator and whizzer；Preseparator includes circular passage, atomized spray mechanism and air-flow baffle, circular passage it is open at one end towards blast fence；Atomized spray mechanism is connect with circular passage, for spraying atomized liquid into circular passage；Whizzer and circular passage are located at the same side of blast fence, and whizzer is set in circular passage, and the air inlet of whizzer is towards blast fence；It is provided with central through hole on blast fence, central through hole is towards whizzer.By cleaner provided by the utility model, the cyclone dust collectors in the prior art lower technical problem of existing separative efficiency in the process of running is alleviated.

Description

Dust removal equipment

technical field

The utility model relates to the technical field of environmental protection equipment, in particular to a dust removal device.

Background technique

In industrial production and life, dust particles are generated in many places; the concentration of particles suspended in the air exceeding a certain level will affect the process safety and personnel health, so it is very important to control the concentration of particles in the air. An important means to control the concentration of particulate matter in the air is dust removal technology. Dust removal technology is divided into two types: contact dust removal and non-contact dust removal. The contact dust removal method is represented by filter material, which has the characteristics of high dust removal efficiency and low resistance. However, in the occasions with high dust concentration, frequent cleaning and replacement are required, and the maintenance and operation cost is high. There are many types of non-contact dust removal methods, such as gravity settling chambers, inertial dust collectors, cyclone dust collectors and electrostatic precipitators; compared with contact type dust removal, non-contact dust removal has the characteristics of simple maintenance and lower operating costs. Different types of dust collectors using non-contact dust removal methods are suitable for different occasions. The dust removal mechanism of the cyclone dust collector is to make the dust-laden airflow rotate, separate the dust particles from the airflow by means of centrifugal force, and then use the action of gravity to make the dust particles fall; compared with other types of dust collectors, the cyclone dust collector has a simpler structure. And easy to manufacture, install and maintain management, equipment investment and operating costs are low, widely used to separate solid and liquid particles from air flow, or to separate solid particles from liquid.

However, during the operation of the cyclone dust collector in the prior art, there is a technical problem of low separation efficiency.

The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Utility model content

The purpose of the utility model is to provide a dust removal device to alleviate the technical problem of low separation efficiency in the operation process of the cyclone dust collector in the prior art.

A first aspect of the present utility model provides a dedusting device. The dedusting device provided by the present utility model includes: a pre-separator and a centrifugal separator; the pre-separator includes an annular channel, an atomizing spray mechanism and an airflow baffle, and one end of the annular channel is open towards the airflow baffle; the atomization spraying mechanism is connected with the annular channel for spraying the atomized liquid into the annular channel; the centrifugal separator and the annular channel are located on the same side of the airflow baffle, and the centrifugal separator is arranged in the annular channel, and the centrifugal separator is arranged in the annular channel. The air inlet of the separator faces the air flow baffle; the air flow baffle is provided with a central through hole, and the central through hole faces the centrifugal separator.

Further, the atomizing spraying mechanism includes an annular water tank, the annular water tank is sleeved outside the annular channel, and the connecting surface of the annular water tank and the annular channel is provided with atomizing spray holes, which communicate with the annular water tank and the annular channel.

Further, the annular channel is provided with a Venturi tube portion, the Venturi tube portion includes a constriction section, a throat and a diffusion section, and the constriction section, the throat and the diffusion section are directed from the end of the annular channel away from the airflow baffle toward the airflow baffle. The directions of one end of the nozzles are arranged in sequence; the atomizing jet holes are arranged in the throat.

Further, a plurality of spray hole groups are arranged on the connecting surface of the annular water tank and the annular channel, and each of the plurality of spray hole groups includes a plurality of atomization spray holes, and the plurality of atomization spray holes are distributed along the circumferential direction of the annular channel; The groups of injection holes are spaced apart along the length of the annular channel.

Further, an atomization diffuser is provided at one end of the atomization spray hole facing the annular channel, and the inner diameter of the atomization diffuser gradually increases along the direction of the annular water tank toward the annular channel.

Further, the pre-separator further includes a static pressure box, the static pressure box is arranged in a ring shape matched with the annular channel, the static pressure box is communicated with an end of the annular channel away from the airflow baffle; the static pressure box is provided with an airflow inlet.

Further, the annular channel includes a plurality of air flow conduits, one end of which is communicated with the static plenum and the other end extends to the air flow baffle; the plurality of air flow conduits are circumferentially distributed around the axis of the central through hole.

Further, the plurality of airflow ducts are inclined clockwise around the axis of the central through hole from the static plenum to the airflow baffle; The hour hand is tilted.

Further, the atomizing spraying mechanism includes an atomizing sprayer, and the atomizing sprayer is connected with the static pressure box, and is used for spraying water mist into the static pressure box in an upward direction.

Further, the centrifugal separator includes a central cylinder and an air extraction device, the central cylinder and the annular passage are located on the same side of the airflow baffle, and the central cylinder is located at the center of the annular passage; the inner and outer walls of the annular passage and the outer wall of the central cylinder are The air suction device is connected in the central cylinder, and is used to drive the airflow to move from the end of the central cylinder close to the airflow baffle to the end away from the airflow baffle.

The dust removal equipment provided by the utility model relates to the technical field of environmental protection equipment. The dedusting equipment provided by the utility model includes: a pre-separator and a centrifugal separator; the pre-separator includes an annular channel, an atomization spray mechanism and an air flow baffle, and one end of the annular channel opens toward the air flow baffle; the atomization spray mechanism and the annular channel connected to spray the atomized liquid into the annular channel; the centrifugal separator and the annular channel are located on the same side of the airflow baffle, and the centrifugal separator is arranged in the annular channel, and the air inlet of the centrifugal separator faces the airflow baffle; the airflow The baffle plate is provided with a central through hole, and the central through hole faces the centrifugal separator. The dust-containing gas is dedusted by using the dust-removing equipment provided by the utility model, and the dust-containing gas enters from the end of the annular channel away from the airflow baffle; the dust-containing gas moves toward the airflow baffle in the annular channel, and the atomization spraying mechanism enters the annular channel. Spraying water mist, the water mist collides and agglomerates with the particles in the dust-containing gas, on the one hand, the quality of the particles is increased, and on the other hand, the viscosity of the particles is improved.

Dust-laden gas and particulate matter collide with the airflow baffle. Due to the high viscosity of the particulate matter condensed with the water mist, part of the particulate matter sticks to the airflow baffle. The water mist and condensed water droplets fall on the airflow baffle, forming a water flow toward the central through hole on the airflow baffle. The water flow drives the particles on the airflow baffle to move toward the central through hole, which is beneficial for the particles to be discharged through the central through hole. Under the guidance of the airflow baffle, the dust-laden gas continues to move to the centrifugal separator and enters the centrifugal separator; the mass of the particles condensed with the water mist increases, which is conducive to the separation under the centrifugal action. The separated particles move from the centrifugal separator to the airflow baffle under the action of their own gravity, and are discharged through the central through hole.

The dust removal device provided by the utility model sprays water mist into the dust-containing gas, so that the particles are separated in the process of collision with the airflow baffle and under the centrifugal action, which is conducive to the removal of the particles with smaller particle size from the dust-containing gas. The separation promotes the separation of particulate matter, and alleviates the technical problem of low separation efficiency existing in the cyclone dust collector in the prior art during operation.

In order to make the above objects, features and advantages of the present utility model more obvious and easy to understand, the preferred embodiments of the present utility model are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a schematic structural diagram of the first embodiment of the dust removal device provided by the embodiment of the present utility model;

2 is a schematic structural diagram of a second embodiment of the dust removal device provided by the embodiment of the present utility model;

3 is a schematic structural diagram of an atomizing spray hole in the first embodiment of the dust removal device provided by the embodiment of the present invention.

Icon: 01-centrifugal separator; 011-central cylinder; 012-fan; 02-ring channel; 021-venturi tube; 03-air flow baffle; 031-central through hole; 041-inner cylinder; 042- Outer cylinder; 043-seal plate; 05-static pressure box; 051-air inlet; 061-first annular water tank; 062-atomization spray hole; 0621-atomization diffuser; Two annular water tanks; 07-dust funnel.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The first aspect of the embodiment of the present utility model provides a dedusting device. The dedusting device provided by the embodiment of the present utility model includes: a pre-separator and a centrifugal separator 01; the pre-separator includes an annular channel 02, an atomization spray mechanism and an airflow baffle 03, one end of the annular channel 02 opens towards the airflow baffle 03; the atomization spray mechanism is connected to the annular channel 02 for spraying the atomized liquid into the annular channel 02; the centrifugal separator 01 and the annular channel 02 are located in the air flow baffle 03. On the same side, and the centrifugal separator 01 is arranged in the annular channel 02, the air inlet of the centrifugal separator 01 faces the airflow baffle 03; the airflow baffle 03 is provided with a central through hole 031, and the central through hole 031 faces the centrifugal separator 01 .

Specifically, the dust-laden gas is dedusted by the dust-removing device provided in the embodiment of the present invention, and the dust-laden gas enters from the end of the annular channel 02 away from the airflow baffle 03; the dust-laden gas moves toward the airflow baffle 03 in the annular channel 02 , the atomization spraying mechanism sprays water mist into the annular channel 02, and the water mist collides and coagulates with the particles in the dust-containing gas, which increases the quality of the particles on the one hand, and improves the viscosity of the particles on the other hand.

The dust-laden gas and particulate matter collide with the airflow baffle 03, and because of the high viscosity of the particulate matter condensed with the water mist, some of the particulate matter sticks to the airflow baffle 03. The water mist and condensed water droplets fall on the airflow baffle 03 , forming a water flow on the airflow baffle 03 that flows toward the central through hole 031 . The water flow drives the particles on the airflow baffle 03 to move toward the central through hole 031 , which is beneficial for the particles to be discharged through the central through hole 031 .

Under the guiding action of the airflow baffle 03 and the action of the centrifugal separator 01, the dust-laden gas continues to move toward the centrifugal separator 01 and enters the centrifugal separator 01; the mass of the particles condensed with the water mist increases, which is beneficial to the Separation is carried out by centrifugation. The separated particles move from the centrifugal separator 01 to the airflow baffle 03 under the action of their own gravity, and are discharged through the central through hole 031 .

The dust removal equipment provided by the embodiment of the present invention sprays water mist into the dust-containing gas, so that the particles are separated during the collision with the airflow baffle 03 and under the centrifugal action, which is conducive to the removal of the particles with smaller particle size from the dust-containing gas. It is separated from the dust gas, which promotes the separation of particulate matter.

In some embodiments, please refer to FIG. 1 and FIG. 2 , the dust removal device provided by the embodiment of the present invention includes an inner cylinder 041 , an outer cylinder 042 and a sealing plate 043 , and one end of the outer cylinder 042 is in contact with the airflow baffle 03 The inner cylinder 041 is set in the outer cylinder 042 and is sleeved outside the centrifugal separator 01, and an annular channel 02 is formed between the inner cylinder 041 and the outer cylinder 042; the inner cylinder 041 and the airflow block There is a gap between the plates 03, through which the air flow in the annular channel 02 can pass through the inner cylinder 041 to form an air flow opening; the sealing plate 043 is connected between the inner cylinder 041 and the centrifugal separator 01 to prevent the air flow from the centrifugal separator 01. The separator 01 and the inner cylinder 041 pass through the discharge.

In some embodiments, both the inner cylinder 041 and the outer cylinder 042 are circular cylinders.

In some embodiments, the end of the annular channel 02 away from the airflow baffle 03 is provided with a first inlet for dust-laden gas to enter, the first inlet is arranged on the side wall of the annular channel 02, and the extension direction of the first inlet is the same as that of the centrifugal The axes of the inlets of the separator 01 are offset. The airflow enters the annular channel 02 through the first inlet, and the airflow has a circumferential component velocity around the axis of the inlet of the centrifugal separator 01, thereby facilitating the formation of a swirling airflow.

In some embodiments, the extending direction of the first inlet is parallel to the tangential direction of the outer cylinder 042 .

Further, the atomization and spraying mechanism includes a first annular water tank 061, the first annular water tank 061 is sleeved outside the annular channel 02, and the connecting surface of the first annular water tank 061 and the annular channel 02 is provided with atomization spray holes 062, the The chemical spray hole 062 communicates with the first annular water tank 061 and the annular channel 02 .

Specifically, please refer to FIG. 1 , the first annular water tank 061 is sleeved outside the outer cylinder 042 . Water exists in the first annular water tank 061 , and the water floods the atomizing spray holes 062 . The atomizing spray hole 062 communicates with the annular channel 02 and the first annular water tank 061; an airflow flowing toward the airflow baffle 03 is formed in the annular channel 02 to generate suction for the water in the first annular water tank 061, so that the first annular water tank 061 The water in the water is sprayed into the annular channel 02 through the atomizing spray hole 062 to form a water mist. The water mist is agglomerated with the particulate matter in the dust-laden gas in the annular channel 02 to promote the separation of the particulate matter.

The water in the first annular water tank 061 is driven to spray into the annular channel 02 by using the suction force generated by the dust-laden gas flowing in the annular channel 02 to the water in the first annular water tank 061, thereby eliminating the need for water pumps and other equipment, simplifying the The structure of the dust removal device provided by the embodiment of the utility model reduces energy consumption.

Further, the annular channel 02 is provided with a Venturi tube portion 021, the Venturi tube portion 021 includes a constriction section, a throat and a diffusion section, and the constriction section, the throat and the diffusion section are along the end of the annular channel 02 away from the airflow baffle 03. The directions toward one end of the airflow baffle 03 are arranged in sequence; the atomizing spray holes 062 are arranged in the throat.

1 and 3, the inner diameter of the constricted section gradually decreases from the end away from the airflow baffle 03 to the end connected with the throat; the diffuser section is from the end connected with the throat to the end close to the airflow baffle 03 At one end, the inner diameter gradually increases. The flow velocity of the dust-laden gas at the throat is greater than the flow velocity in the constriction section and the flow velocity in the diffusion section, which is beneficial to promote the water in the first annular water tank 061 to enter the annular channel 02 through the atomization spray holes 062 and spray to form water fog.

Further, a plurality of spray hole groups are provided on the connecting surface of the first annular water tank 061 and the annular channel 02 , and each of the plurality of spray hole groups includes a plurality of atomization spray holes 062 , and the plurality of atomization spray holes 062 are arranged along the annular channel 02 . The circumferential distribution of the plurality of injection hole groups is spaced along the length direction of the annular channel 02 .

In some embodiments, the atomizing spray holes 062 comprise circular holes, oval holes, or rectangular holes. The pressure difference between the annular channel 02 and the first annular water tank 061 makes the water pass through the atomizing spray holes 062 and form water mist in a spray shape. Each spray hole group includes a plurality of atomization spray holes 062 , and the plurality of atomization spray holes 062 are evenly spaced circumferentially around the axis of the outer cylinder 042 .

In some embodiments, the atomizing injection holes 062 include first injection slits, and the first injection slits extend along the circumference of the outer cylinder 042 ; The first jet slit.

In some embodiments, the atomizing spray holes 062 include second spray slits, and the second spray slits extend along the length direction of the outer cylinder 042 ; The second jet slot.

In some embodiments, the plurality of injection hole groups are evenly spaced along the length of the annular channel 02

A plurality of atomizing spray holes 062 are distributed at intervals along the circumference and length of the outer cylinder 042 on the surface of the outer cylinder 042, which is beneficial to improve the distribution uniformity of the water mist sprayed into the annular channel 02, and promote the sufficient water mist and dust-laden gas. Contact is conducive to the condensation of water mist and particles in the dust-laden gas.

Further, an atomizing and diffusing part 0621 is provided at one end of the atomizing spray hole 062 facing the annular channel 02 , and the inner diameter of the atomizing and diffusing part 0621 gradually increases along the direction of the first annular water tank 061 toward the annular channel 02 .

Specifically, please refer to FIG. 3 , the atomization injection hole 062 includes a first injection slot, and the first injection slot extends along the circumferential direction of the outer cylinder 042 ; the end of the first injection slot facing the annular channel 02 is provided with an atomization diffuser 0621 . The atomizing diffuser 0621 is close to the side wall of the airflow baffle 03, and is inclined to the airflow baffle 03 from the end close to the first annular water tank 061 to the end close to the annular channel 02; the atomizing diffuser 0621 is far away from the side wall of the airflow baffle 03 , from the end close to the first annular water tank 061 to the end close to the annular channel 02 and is inclined in the direction away from the airflow baffle 03 .

The water entering the atomizing spray hole 062 is sprayed into the annular channel 02 through the atomizing diffusion part 0621, which is conducive to the spraying of the water in a scattered shape under the guiding action of the atomizing diffusion part 0621, which is conducive to the formation of water mist, thereby promoting water Coagulates with particles in dusty gases.

As another embodiment, the pre-separator further includes a static pressure box 05, the static pressure box 05 is arranged in a ring shape matching with the annular channel 02, and the static pressure box 05 communicates with the end of the annular channel 02 away from the airflow baffle 03; The pressure box 05 is provided with an air inlet 051 .

Specifically, the static pressure box 05 has a buffering effect on the airflow, so that the airflow entering the annular channel 02 is more uniform and stable, which is conducive to the smooth flow of the dust-laden gas in the annular channel 02 and the centrifugal separator 01, thereby facilitating the separation effect of particulate matter. stability.

Specifically, please refer to FIG. 1 and FIG. 2 , the connection surface of the static pressure box 05 and the annular channel 02 is provided with an annular hole, the annular hole surrounds the inner cylinder 041 and communicates with the static pressure box 05 and the annular channel 02 . The airflow enters the static plenum 05 through the airflow inlet 051, and then enters the annular channel 02 through the annular hole.

In some embodiments, the airflow inlet 051 of the static plenum 05 is disposed on the side wall of the static plenum 05 , and the extending direction of the airflow inlet 051 is offset from the axis of the air inlet of the centrifugal separator 01 . The airflow enters the static pressure box 05 through the airflow inlet 051, and the airflow has a circumferential velocity around the axis of the inlet of the centrifugal separator 01, which is beneficial to form a rotating airflow.

In some embodiments, the extending direction of the airflow inlet 051 is parallel to the tangential direction of the outer wall of the plenum 05 .

Further, the annular channel 02 includes a plurality of airflow conduits, one end of which is communicated with the static pressure box 05 and the other end extends to the airflow baffle 03 ;

Specifically, the airflow duct surrounds the centrifugal separator 01 and has a guiding effect on the airflow; the airflow can be adjusted by adjusting the density of the airflow duct circumferentially distributed around the axis of the centrifugal separator 01 in the longitudinal direction.

In some embodiments, the plurality of gas flow conduits are uniformly distributed circumferentially around the axis of the centrifugal separator 01 in the length direction.

In some embodiments, the dust removal equipment provided by the embodiments of the present invention includes a static pressure box 05, a first sealing plate, a plurality of second sealing plates, and a plurality of air flow conduits. The two ends of the airflow duct are respectively fixedly connected with the static pressure box 05 and the airflow baffle 03; the connection surface of the static pressure box 05 and the airflow duct is provided with a plurality of through holes matched with the opening of the airflow duct, and the through holes communicate with the airflow duct and static pressure box 05; the end of the airflow duct close to the airflow baffle 03 is provided with an opening toward the centrifugal separator 01, and the airflow in the airflow duct can flow out of the airflow duct through the opening and move toward the centrifugal separator 01. The first sealing plate is connected between the airflow duct and the outer wall of the centrifugal separator 01 to prevent the airflow from flowing along the length of the centrifugal separator 01 between the airflow duct and the centrifugal separator 01; a plurality of second sealing plates are respectively connected between two adjacent airflow ducts, and the two ends of the second sealing plate are sealed with the static pressure box 05 and the airflow baffle 03 respectively to prevent the airflow from the airflow duct from flowing to the outside of the annular channel 02 .

Further, the plurality of airflow conduits from the static plenum 05 to the airflow baffle 03 are all inclined clockwise around the center of the central through hole 031; The center of the hole 031 is inclined counterclockwise.

Specifically, a plurality of airflow ducts surround the centrifugal separator 01 and are inclined in the same direction, and the airflow flowing through the airflow ducts to the airflow baffle 03 has a circumferential velocity around the centerline of the centrifugal separator 01 in the longitudinal direction, which is beneficial to After the airflow collides with the airflow baffle 03, it moves toward the centrifugal separator 01 to form a rotating airflow.

In some embodiments, the inclined direction of the airflow duct from the static plenum 05 to the airflow baffle 03 is consistent with the extending direction of the airflow inlet 051 toward the inside of the static plenum 05 .

As another embodiment, the atomizing spraying mechanism includes an atomizing sprayer, and the atomizing sprayer is connected to the static pressure box 05 for spraying water mist into the static pressure box 05 in an upward direction.

Specifically, please refer to FIG. 2, the dust-laden gas enters the static pressure box 05 from the side of the static pressure box 05, and the water mist sprayed by the atomizing sprayer moves from the bottom to the top of the static pressure box 05, and the movement direction of the water mist is the same as that of the static pressure box 05. The moving directions of the dust-laden gas are staggered, the water mist collides with the dust-laden gas, and part of the water mist and the particles in the dust-laden gas condense; the particle size, mass and viscosity of the particles combined with the water mist increase, making it easier to Sticks to the airflow baffle 03 and separates from the dust-laden gas.

In the process of moving from the bottom of the static pressure box 05 to the top, part of the water mist does not condense with the particles in the dust-containing gas, and this part of the water mist can move to the bottom of the static pressure box 05 under the action of its own gravity, and again with the The dust-laden gas collides with the particulate matter, thereby promoting the condensation of the water mist and the particulate matter in the dust-laden gas, which is beneficial to the separation of the particulate matter in the dust-laden gas.

Further, the atomizing sprayer includes an annular spraying head 071 , the annular spraying head 071 is arranged below the static pressure box 05 , and a plurality of spraying holes are arranged on the connection surface of the annular spraying head 071 and the static pressure box 05 .

Specifically, the annular spray head 071 is sleeved outside the annular channel 02, and the top surface of the annular spray head 071 is fitted with the bottom surface of the static pressure box 05; the plurality of spray holes are connected to the static pressure box 05 and the annular inner surface of the annular spray head 071 The cavities are evenly spaced and distributed on the annular connecting surface of the annular sprinkler head 071 and the static pressure box 05 . The water mist sprayed through the spray holes is sprayed on the top surface of the static pressure tank 05 .

In some embodiments, please refer to FIG. 2 , the annular sprinkler head 071 is connected to the second annular water tank 072, and the second annular water tank 072 is sleeved outside the annular channel 02 and is located at one end of the annular sprinkler head 071 away from the static pressure tank 05; The second annular water tank 072 communicates with the end of the annular spray head 071 away from the static pressure tank 05 . The second annular water tank 072 is connected with a water pump, and the water pump supplies water to the second annular water tank 072 and provides a driving force to drive the water into the annular spray head 071 and spray out through the spray holes.

The water is sprayed through the annular spraying head 071, which can make the distribution of the water mist entering the static pressure box 05 more uniform, which is conducive to the condensation of the water mist and the particles in the dust-laden gas.

The dust removal device provided by the embodiment of the present invention has a compact structure, occupies a small space, and is easy to carry.

Further, the centrifugal separator 01 includes a central cylinder 011 and an air extraction device, the central cylinder 011 and the annular channel 02 are located on the same side of the airflow baffle 03, and the central cylinder 011 is located in the center of the annular channel 02; The inner and outer walls are sealed with the outer wall of the central cylinder 011; the air extraction device is connected to the central cylinder 011 to drive the airflow from one end of the central cylinder 011 close to the airflow baffle 03 to the other end.

Specifically, the dust removal equipment provided by the embodiment of the present invention is used to separate the particulate matter in the dust-laden gas, and the dust-laden gas enters from the end of the annular channel 02 away from the airflow baffle 03 , and the annular channel 02 guides the dust-laden gas to move toward the airflow baffle 03 .

The dust-laden gas collides with the airflow baffle 03, and part of the particulate matter sticks to the airflow baffle 03; the dust-laden gas is guided by the airflow baffle 03, and the direction is adjusted to flow along the airflow baffle 03 toward the central through hole 031; Driven by the air extraction device, an air flow is formed between the central cylinder 011 and the airflow baffle 03 along the central cylinder 011 in a direction away from one end of the airflow baffle 03; the airflow moving along the airflow baffle 03 and Under the combined action of the airflow moving away from the airflow baffle 03 along the central cylinder 011 , a rotating airflow is formed in the space between the central cylinder 011 and the airflow baffle 03 . The particles in the dust-laden gas are separated under the action of centrifugal force and fall to the airflow baffle 03 . A part of the falling particles are discharged through the central through hole 031; a part of the falling particles falls to the air flow baffle 03, and condense with the particles on the air flow baffle 03, the particle size of the particles increases, and the flow of water moving towards the central through hole 031 is blown away. Driven, it moves toward the central through hole 031 and is discharged from the central through hole 031.

In the dust removal device provided by the embodiment of the present invention, the dust-laden gas moves from the annular channel 02 to the airflow baffle 03, and then moves away from the airflow baffle 03 through the central cylinder 011; the dust-laden gas collides with the airflow baffle 03 , part of the particulate matter is separated on the airflow baffle 03, and part of the particulate matter is separated under the action of the cyclone airflow, which improves the efficiency of separating the particulate matter from the dust-laden gas.

Specifically, please refer to FIG. 1 and FIG. 2 , the central cylinder 011 is arranged in the inner cylinder 041, and one end of the opening faces the airflow baffle 03; the sealing plate 043 is connected between the inner cylinder 041 and the central cylinder 011 to prevent airflow Pass between the central cylindrical body 011 and the inner cylindrical body 041 .

In some embodiments, the central cylinder 011 is a circular cylinder.

In some embodiments, the surface of the airflow baffle 03 facing the central cylinder 011 is a plane. The distance between the central cylinder 011 and the airflow baffle 03 is greater than the distance between the inner cylinder 041 and the airflow baffle 03 .

In some embodiments, the airflow baffle 03 is inclined in a direction away from the central cylinder 011 from the outer edge to the center.

The axis of the central cylinder 011 is arranged in the vertical direction, the airflow baffle 03 is located below the central cylinder 011, and the airflow baffle 03 is inclined downward from the outer edge to the center. In this way, it is favorable for the particles on the airflow baffle 03 to move toward the central through hole 031 .

In some embodiments, the air extraction device includes a fan 012 , and the fan 012 is disposed in the central cylinder 011 and is located at an end of the central cylinder 011 away from the airflow baffle 03 . When the fan 012 is running, it drives the airflow in the central cylinder 011 to move away from the airflow baffle 03 .

In some embodiments, the air extraction device includes a vacuum pump, and the vacuum pump is connected to the end of the central cylinder 011 away from the airflow baffle 03 to drive the airflow in the central cylinder 011 to move away from the airflow baffle 03 .

Further, a dust collecting funnel 07 is connected to the side of the airflow baffle 03 away from the central cylinder 011 , and the dust collecting funnel 07 communicates with the central through hole 031 .

Specifically, the larger end of the dust collecting funnel 07 is connected to the airflow baffle 03; the inner diameter of the dust collecting funnel 07 gradually decreases from the upper end to the lower end, so that the particles separated from the dust-laden gas can pass through the central through hole 031 Enter the dust collecting funnel 07, slide along the dust collecting funnel 07 to the bottom of the dust collecting funnel 07 for collection.

Further, the dust removal device provided by the embodiment of the present invention further includes a water tank, and the bottom of the dust collecting funnel 07 extends into the water tank.

Specifically, the water tank is arranged below the dust collecting funnel 07 . Water is stored in the water tank, and the bottom of the dust collecting funnel 07 extends below the liquid level. Water can block the bottom of the dust collecting funnel 07 and prevent the airflow from moving into the dust collecting funnel 07 through the central through hole 031 . The particulate matter enters the water tank through the dust collecting funnel 07 to reduce the accumulation of particulate matter in the dust collecting funnel 07 .

In some embodiments, the water in the tank flows in one direction and can carry the particulate matter, thereby transporting the particulate matter away in time.

Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments refer to each other. The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it is still The technical solutions described in the foregoing embodiments can be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A dedusting device, characterized in that, comprising: a pre-separator and a centrifugal separator; The pre-separator includes an annular channel, an atomizing spraying mechanism and an air flow baffle, and one end of the annular channel opens toward the air flow baffle; the atomizing and spraying mechanism is connected to the annular Atomized liquid is sprayed in the annular channel; The centrifugal separator and the annular channel are located on the same side of the airflow baffle, and the centrifugal separator is arranged in the annular channel, and the air inlet of the centrifugal separator faces the airflow baffle; The airflow baffle is provided with a central through hole, and the central through hole faces the centrifugal separator. 2 . The dust removal device according to claim 1 , wherein the atomization and spraying mechanism comprises an annular water tank, the annular water tank is sleeved outside the annular channel, and the annular water tank and the annular channel are separated from each other. 3 . The connecting surface is provided with atomization spray holes, and the atomization spray holes communicate with the annular water tank and the annular channel. 3 . The dust removal device according to claim 2 , wherein a venturi tube portion is provided in the annular channel, and the venturi tube portion comprises a constriction section, a throat and a diffusion section, and the constriction section, the The throat and the diffusing section are arranged in sequence along the direction from the end of the annular channel away from the airflow baffle to the end close to the airflow baffle; The atomizing spray holes are arranged in the throat. 4 . The dust removal device according to claim 2 , wherein a plurality of spray hole groups are provided on the connecting surface of the annular water tank and the annular channel, and each of the plurality of spray hole groups includes a plurality of the spray hole groups. 5 . atomization spray holes, a plurality of the atomization spray holes are distributed along the circumferential direction of the annular channel; A plurality of the injection hole groups are distributed at intervals along the length direction of the annular channel. 5 . The dust removal device according to claim 2 , wherein an atomization diffusion part is provided at one end of the atomization spray hole facing the annular channel, and the inner diameter of the atomization diffusion part is directed along the annular water tank. 6 . The direction of the annular channel gradually increases. 6 . The dust removal device according to claim 1 , wherein the pre-separator further comprises a static pressure box, the static pressure box is arranged in a ring shape matched with the annular channel, and the static pressure box is connected to the annular channel. 7 . One end of the annular channel away from the airflow baffle is communicated; an airflow inlet is arranged on the static pressure box. 7. The dust removal device according to claim 6, wherein the annular channel comprises a plurality of air flow conduits, one end of the air flow conduit is communicated with the static pressure box, and the other end extends to the air flow baffle; A plurality of the airflow conduits are circumferentially distributed around the axis of the central through hole. 8 . The dust removal device according to claim 7 , wherein the plurality of air flow conduits are inclined clockwise around the axis of the central through hole from the static pressure box to the air flow baffle; 8 . or, A plurality of the airflow conduits are inclined counterclockwise around the axis of the central through hole from the static plenum to the airflow baffle. 9 . The dust removal device according to claim 6 , wherein the atomizing and spraying mechanism comprises an atomizing sprayer, and the atomizing sprayer is connected to the static pressure box and is used to send the spray to the static pressure box. 10 . Spray water mist in the upward direction. 10 . The dust removal device according to claim 1 , wherein the centrifugal separator comprises a central cylinder and an air extraction device, and the central cylinder and the annular channel are located on the same side of the airflow baffle, 11 . and the central cylinder is located in the center of the annular passage; the inner and outer walls of the annular passage are sealedly connected with the outer wall of the central cylinder; The air suction device is connected to the central cylinder, and is used for driving the airflow to move from the end of the central cylinder close to the airflow baffle to the end away from the airflow baffle.