CN218249318U

CN218249318U - Dedusting and demisting device

Info

Publication number: CN218249318U
Application number: CN202123434999.5U
Authority: CN
Inventors: 黄彦立
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-01-10
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a dust removal defogging equipment relates to dust removal defogging technical field. A dedusting and demisting device comprises a dedusting component, wherein the dedusting component comprises a dedusting box, a smoke inlet and a smoke outlet are formed in the dedusting box, a water curtain turbulence plate is covered on the smoke inlet, smoke can enter the dedusting box through the water curtain turbulence plate, a nozzle is arranged in the dedusting box and is aligned with the water curtain turbulence plate, a water-blocking weir plate is arranged on the dedusting box, a rotational flow centrifugal pipe group is arranged on the water-blocking weir plate and is abutted against the smoke outlet, and a sewage separation box is arranged at the output end of the water-blocking weir plate; the demisting component comprises a demisting box, the dedusting box is arranged in the demisting box, the dedusting box is communicated with the demisting box through a smoke outlet, and a gas-water separation folded plate is arranged in the demisting box. The dedusting and demisting device can improve the dedusting efficiency, has low water resource consumption and can recycle and treat dust; and has stable treatment effect on the flue gas with large moisture content.

Description

Dedusting and demisting device

Technical Field

The utility model relates to a dust removal defogging technical field particularly, relates to a dust removal defogging equipment.

Background

The dust remover which is popular in the market at present and takes water as a dust removing medium has the main forms of spray type, water film type, impact type, water bath type, venturi tube type and the like, and the dust remover with the forms has the defects of low dust removing efficiency, unstable dust removing effect, large liquid-gas ratio, large discharge capacity, high energy consumption, water and electricity resource waste, no large scale and the like, and cannot adapt to the increasingly improved environmental protection requirement. The plastic burning plate dust remover can meet the emission requirement, but has high cost and causes huge economic burden to buyers; the filter bag type dust collector has the limitation that the filter bag type dust collector can only be applied to dry gas or working conditions with low moisture content.

Therefore, a stable, ideal and cheap wet dust collector for treating the flue gas with large moisture content is urgently needed in the market.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dedusting and demisting device which can improve the dedusting efficiency, has small water resource consumption and can recycle and treat the dust; and the treatment effect on the flue gas with large moisture content is stable.

The embodiment of the utility model is realized like this:

the embodiment of the application provides dust removal and demisting equipment, which comprises a dust removal component, wherein the dust removal component comprises a dust removal box, a smoke inlet and a smoke outlet are formed in the dust removal box, a water curtain turbulence plate is covered on the smoke inlet, smoke can enter the dust removal box through the water curtain turbulence plate, a nozzle is arranged in the dust removal box and is aligned with the water curtain turbulence plate, a water blocking weir plate is arranged on the dust removal box, a rotational flow centrifugal pipe group is arranged on the water blocking weir plate and is used for separating water mist and gas carried in the smoke, the rotational flow centrifugal pipe group is abutted to the smoke outlet, and a sewage separation box is arranged at the output end of the water blocking weir plate; the demisting component comprises a demisting box, the dedusting box is arranged in the demisting box, the dedusting box and the demisting box are communicated through a smoke outlet, a gas-water separation folded plate is arranged in the demisting box, and the gas-water separation folded plate is used for gas-liquid separation.

The utility model discloses an in some embodiments, above-mentioned whirl centrifugation nest of tubes includes that a plurality of even intervals set up in the rigid tube bank of the weir plate that blocks water, and a plurality of through-holes have been seted up to the correspondence on the weir plate that blocks water, and rigid tube bank communicates with the sewage separation case through the weir plate that blocks water, and a plurality of rigid tube banks are kept away from weir plate one end that blocks water and are formed the inclined plane and describe.

In some embodiments of the present invention, an induced air system is disposed on the dust removing box, and the induced air system is located at the input end of the smoke inlet.

The utility model discloses an in some embodiments, sewage mouth and mud mouth have been seted up to above-mentioned sewage separation case's output, and the output of mud mouth is provided with mud-water separation machine.

In some embodiments of the present invention, the input end of the defogging box located on the gas-water separation folded plate is provided with a back washing component, and the back washing component is used for washing water and cleaning the gas-water separation folded plate.

The utility model discloses an in some embodiments, the cross-section of above-mentioned gas-water separation folded plate is W type or S type, and the gas-water separation folded plate includes the folded plate of the mutual concatenation of polylith, is formed with the clearance between adjacent folded plate, and the flue gas can be followed the clearance and passed through.

The utility model discloses an in some embodiments, above-mentioned defogging incasement is equipped with the water purification separator box that is used for holding the water of following the separation of gas-water separation folded plate, is provided with the water level appearance on the water purification separator box, and the bottom is equipped with first block valve and process water pipeline, and first block valve is used for controlling process water pipeline and water purification separator box break-make, and the defogging case side is equipped with the moisturizing valve, and defogging incasement portion is equipped with built-in circulation water route and built-in wind channel.

The utility model discloses an in some embodiments, above-mentioned dust removal case is provided with the circulating pump, the play water end and a plurality of nozzle intercommunication of circulating pump.

In some embodiments of the present invention, the water curtain turbulence plate has a plurality of micropores uniformly distributed thereon, and the micropores are circular holes.

In some embodiments of the present invention, the smoke inlet is funnel-shaped, and the diameter of the outer end of the smoke inlet is smaller than the diameter of the inner end of the smoke inlet.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

the embodiment of the application provides dust removal and demisting equipment, which comprises a dust removal assembly, wherein the dust removal assembly comprises a dust removal box, a smoke inlet and a smoke outlet are formed in the dust removal box, a water curtain turbulence plate is covered on the smoke inlet, smoke can enter the dust removal box through the water curtain turbulence plate, a nozzle is arranged in the dust removal box and aims at the water curtain turbulence plate, a water blocking weir plate is arranged on the dust removal box, a rotational flow centrifugal pipe group is arranged on the water blocking weir plate and used for separating water mist and gas carried in the smoke, the rotational flow centrifugal pipe group is abutted against the smoke outlet, and a sewage separation box is arranged at the output end of the water blocking weir plate; the demisting component comprises a demisting box, the dedusting box is arranged in the demisting box, the dedusting box and the demisting box are communicated through a smoke outlet, a gas-water separation folded plate is arranged in the demisting box, and the gas-water separation folded plate is used for gas-liquid separation. The dust removal component is used for removing coarse particles in smoke. The dust removal box is used for installing dust removal equipment of the dust removal box, and dust removal efficiency of the dust removal box is improved. Above-mentioned entering that advances the mouth and being used for original smog is convenient for it to let in this dust removal incasement, is convenient for to the particulate matter separation in its smog, promotes the cleanliness factor of its air. The smoke outlet is used for discharging smoke subjected to dust removal treatment, and performing subsequent step treatment. The water curtain turbulence plate is used for being matched with water flow sprayed by the nozzle to form a water curtain, so that particles in the smoke carrying the particles are coagulated after being attached to the water solution, washing and mass transfer are completed, and part of the particles carried in the smoke is removed in advance. The water blocking weir plate is used for installing the cyclone centrifugal pipe set, the cyclone centrifugal pipe set is vertically arranged in the dust removal box and is located at the upper end of the water blocking weir plate, smoke passing through the water curtain turbulence plate enters the cyclone centrifugal pipe set, the smoke in the cyclone centrifugal pipe set moves downwards in a spiral mode under the centrifugal action, meanwhile, water mist and gas carried in the smoke are separated, a water film is formed on the inner wall of the cyclone centrifugal pipe set, and the smoke contacts with the water film to complete mass transfer. The sewage separation box is used for separating the settled sludge from water, is convenient for recycling the sludge, and is energy-saving and environment-friendly. The defogging assembly is used for carrying out secondary treatment on the smog subjected to the rough treatment, so that the cleanliness of the exhausted gas is further improved. The defogging box is used for installing defogging parts of the defogging box, is convenient for purifying smog in a closed environment, and improves the purification efficiency of the defogging box. The gas-water separation folded plate is used for carrying out gas-liquid separation on the smoke after the rough separation is finished, and the stability of smoke treatment is improved.

Therefore, the dust removal and demisting device can improve the dust removal efficiency, has low water resource consumption and can recycle and treat dust; and the treatment effect on the flue gas with large moisture content is stable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic view of a downward structure according to an embodiment of the present invention.

Icon: 1-a dust removal box; 2-a smoke inlet; 3-a smoke outlet; 4-a nozzle; 5-water curtain turbulence plate; 6-a water-damming weir plate; 7-cyclone centrifugal tube group; 8-a sewage separation tank; 9-a demisting box; 10-gas-water separation folded plate; 11-an induced draft system; 12-a mud-water separator; 13-a backwash assembly; 14-a clean water separation tank; 15-water level meter; 16-a first block valve; 17-process water lines; 18-a water replenishing valve; 19-a circulating water circuit; 20-built-in air duct; 21-an exhaust system; 22-a rigid tube bundle; 23-second block valve.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1-3, fig. 1 is a schematic structural view of an embodiment of the present invention; FIG. 2 is an enlarged view of a portion of FIG. 1 at A; fig. 3 is a schematic view of a downward structure according to an embodiment of the present invention.

The embodiment provides a dedusting and demisting device which comprises a dedusting assembly, wherein the dedusting assembly comprises a dedusting box 1, a smoke inlet 2 and a smoke outlet 3 are formed in the dedusting box 1, a water curtain turbulence plate 5 covers the smoke inlet 2, smoke can enter the dedusting box 1 through the water curtain turbulence plate 5, a nozzle 4 is arranged in the dedusting box 1, the nozzle 4 is aligned with the water curtain turbulence plate 5, a water blocking weir plate 6 is arranged on the dedusting box 1, a rotational flow centrifugal pipe group 7 is arranged on the water blocking weir plate 6, the rotational flow centrifugal pipe group 7 is used for separating water mist, particles and gas carried in the smoke, the rotational flow centrifugal pipe group 7 is abutted to the smoke outlet 3, and a sewage separation box 8 is arranged at the output end of the water blocking weir plate 6; the defogging subassembly, the defogging subassembly includes defogging case 9, and dust removal case 1 sets up in defogging case 9, and dust removal case 1 and defogging case 9 pass through outlet flue 3 intercommunication, are provided with gas-water separation folded plate 10 in the defogging case 9, and gas-water separation folded plate 10 is used for gas-liquid separation.

In this embodiment, the dust removing component is used for separating and removing particulate matters in smoke. The dust removal box 1 is used for installing dust removal equipment of the dust removal box, and the dust removal efficiency of the dust removal box is improved. Above-mentioned smoke inlet 2 is used for the entering of original particulate matter smog to be convenient for it to let in this dust removal case 1, is convenient for to the particulate matter separation in its smog, promotes the cleanliness factor of its air. The smoke outlet 3 is used for discharging smoke subjected to dust removal treatment, and performing subsequent steps.

In this embodiment, the water curtain turbulence plate 5 is used to cooperate with the water flow sprayed by the nozzle 4 to form a water curtain, so as to cause the gas-liquid to contact in a counter-current or co-current manner, so that the particles in the flue gas carrying the particles are attached to the water solution and then agglomerate, thereby completing the washing and mass transfer, and pre-removing a part of the particles carried in the flue gas.

In this embodiment, the water blocking weir plate 6 is used for installing the cyclone centrifugal tube assembly 7, the cyclone centrifugal tube assembly 7 is vertically arranged inside the dust removing box 1 and is located at the upper end of the water blocking weir plate 6, the flue gas passing through the water curtain turbulence plate 5 enters the cyclone centrifugal tube assembly 7, the flue gas located in the cyclone centrifugal tube assembly 7 moves downwards in a spiral mode under the centrifugal action, and the water and the particles in the flue gas are separated. The sewage separation tank 8 is used for separating the settled sludge from water and discharging the separated sludge and water to the outside, so that the sludge is convenient to recycle, and the sewage separation tank is energy-saving and environment-friendly.

In this embodiment, the defogging assembly is used for performing a secondary treatment on the fog after the fog is subjected to the rough treatment, so as to further improve the cleanliness of the exhaust gas. The demisting box 9 is used for installing demisting parts, is convenient for purifying smoke in a closed environment, and improves the purification efficiency. The gas-water separation folded plate 10 is used for carrying out gas-liquid separation on the smog after the rough separation is finished, and the stability of the smog treatment is improved.

When the device is used, smoke containing water mist discharged from the cyclone centrifugal tube group 7 enters the demisting tank 9, the water mist contacts the gas-water separation folded plate 10 in the rising process, and the water mist completes gas-liquid separation under the action of collision, impact, inertia and gravity.

Referring to fig. 1 and 3, in some embodiments of the present invention, the cyclone centrifugal tube assembly 7 includes a plurality of rigid tube bundles 22 uniformly spaced apart from the water-damming board 6, the water-damming board 6 is correspondingly provided with a plurality of through holes, the rigid tube bundles 22 are communicated with the sewage separation tank 8 through the water-damming board 6, and one end of the rigid tube bundles 22 away from the water-damming board 6 forms an inclined plane. The water-damming weir 6 is of a grid structure, facilitating its installation on the rigid tube bundle 22.

When the rigid tube bundle type gas-liquid separator is used, the rigid tube bundle 22 is vertically arranged in the dust removal box 1 and is positioned at the upper end of the water-blocking weir plate 6, smoke passing through the water curtain turbulence plate 5 enters the rigid tube bundle 22, the smoke positioned in the rigid tube bundle 22 moves downwards in a spiral mode under the centrifugal action, meanwhile, water mist carried in the smoke is separated from gas, a water film is formed on the inner wall of the rigid tube bundle 22, and the smoke is contacted with the water film to finish mass transfer.

In this embodiment, the top of the rigid tube bundle 22 is a 30-60 ° inclined plane, so that the section of the rigid tube bundle is formed into the inclined-plane-shaped cyclone centrifugal tube group 7, which facilitates the separation of water mist and gas, and improves the usability thereof.

Referring to fig. 1, in some embodiments of the present invention, an induced air system 11 is disposed on the dust removing box 1, and the induced air system 11 is located at an input end of the smoke inlet 2. The induced air system 11 is used for accelerating the flow of the smoke into the dust removal box 1, so that the purification efficiency is improved, and the purification time is shortened.

In this embodiment, the induced draft system 11 may be an induced draft fan, which is a device that generates negative pressure by rotation of an impeller to draw air from the system (device). The induced draft fan can be used for effectively pumping the fog into the dust removal box 1 quickly, and the flow rate of the fog is increased.

In this embodiment, an air outlet (not shown) is disposed at the top of the defogging box 9, and an exhaust fan is covered on the air outlet for accelerating the clean air to be exhausted into the air, accelerating the purifying rate of the device, and greatly increasing the usability of the device. In this embodiment, the air inside the defogging box 9 is pumped away to reduce the air pressure inside the defogging box 9, so that the air flow is accelerated, and the service performance is improved.

Referring to fig. 1, in some embodiments of the present invention, the output end of the sewage separating box 8 is provided with a sewage port and a sludge port, and the output end of the sludge port is provided with a mud-water separator 12. The mud-water separator 12 is used to separate and discharge the slurry for use, thereby preventing the slurry from being rapidly accumulated.

In this embodiment, the above-mentioned mud-water separator 12 adopts the product among the prior art, is an inclination mud conveyor, and the particulate matter that sewage separation tank 8 collected deposits, gathers to the bottom under the action of gravity, and sewage separation tank 8 bottom is provided with second isolating valve 23, and after second isolating valve 23 opened, the particulate matter was discharged, was carried to production line recycle by mud-water separator 12, reduces extravagant and environmental pollution.

Referring to fig. 1 and 2, in some embodiments of the present invention, a back-washing assembly 13 is disposed at an input end of the gas-water separation flap 10 in the defogging box 9, the back-washing assembly 13 is supplied with water by a back-washing pump, and the back-washing assembly 13 is used for washing the gas-water separation flap 10 with water. The backwashing unit 13 is used to wash the particles adhered to the gas-water separation flap 10, mix the particles with water, and then perform solid-liquid separation on the mixture, thereby improving the separation efficiency. In particular, the frequency of the flushing of the backwash assembly 13 may be controlled.

Referring to fig. 1, in some embodiments of the present invention, the cross section of the gas-water separation flap 10 is W-shaped or S-shaped, the gas-water separation flap 10 includes a plurality of flaps that are spliced with each other, a gap is formed between adjacent flaps, and smoke can pass through the gap. The gas-water separation folded plate 10 is of a fold structure, so that attachment of particles is facilitated, and the purification efficiency is improved. The gap is used for passing through the water mist mixture, and then the particles in the mist can be attached to the gas-water separation folded plate 10, so that the water mist purification effect is further improved. The fold structure is W-shaped or S-shaped, has good structural formability and is convenient to manufacture and use.

Referring to fig. 1, in some embodiments of the present invention, a clean water separation tank 14 for containing water separated from the gas-water separation flap 10 is disposed in the defogging tank 9, a water level meter 15 is disposed at an outer side portion of the clean water separation tank 14, a first isolating valve 16 and a process water pipeline 17 are disposed at an output end of the clean water separation tank 14, and the process water pipeline 17 is provided with a plurality of water outlets respectively communicated with water inlets of a circulation pump, an evacuation pump and a backwash pump; the first isolating valve 16 is used for controlling the connection and disconnection of a process water pipeline 17 and the water purification separation tank 14, the water replenishing valve 18 is arranged on the side part of the demisting tank 9, and the built-in circulating water channel 19 and the built-in air duct 20 are arranged in the demisting tank 9.

In this embodiment, the clean water separator 14 is used to separate the clean water from the fine particles. The water level meter 15 is used for monitoring the water level inside the water purification and separation tank 14, and is convenient for real-time control. The recycling water path 19 is used for recycling the water bodies in the demisting box 9 and the dedusting box 1, and the process water internal circulation system is convenient for recycling water resources and saving water resources.

Referring to fig. 1, in some embodiments of the present invention, the dust removing box 1 is provided with a circulating pump (not shown), and a water outlet end of the circulating pump is communicated with the plurality of nozzles 4. The circulating pump is used for pumping water to the nozzles 4, the water spraying pressure and the water spraying flow of the nozzles 4 are controlled by the circulating pump, and the thickness of the water curtain is adjusted through the circulating pump.

Referring to fig. 1, in some embodiments of the present invention, a plurality of micropores are uniformly distributed on the water curtain turbulence plate 5, and the micropores are circular holes. Above-mentioned water curtain torrent board 5 goes up the equipartition and has a plurality of micropores that are matrix or triangle-shaped form and arrange, and above-mentioned micropore is the adherence of circular port ability effectual prevention particulate matter, promotes its clearance effect.

Referring to fig. 1, in some embodiments of the present invention, the smoke inlet 2 is funnel-shaped, and a diameter of an outer end of the smoke inlet 2 is smaller than a diameter of an inner end of the smoke inlet 2. Above-mentioned enter mouth 2 locate dust removal case 1 side and be the cast that expands gradually, keep away from 1 one end of dust removal case is extremely close to 1 one end of dust removal case 2 bores of advancing mouth increase gradually, the flue gas gets into and enters into behind the mouth 2 in partial kinetic energy of diffusion and turn into static pressure energy, partial particulate matter in the flue gas under inertia and action of gravity with gas separation and subside to in the sewage separation case 8.

To sum up, the embodiment of the utility model provides a dust removal and demisting device, including the dust removal subassembly, the dust removal subassembly includes dust removal case 1, dust removal case 1 is last to have seted up into mouth 2 and outlet flue 3, the mouth 2 that advances is covered with water curtain turbulence board 5, flue gas can get into dust removal case 1 through water curtain turbulence board 5, be provided with nozzle 4 in the dust removal case 1, nozzle 4 aims at water curtain turbulence board 5, be provided with water-stopping weir plate 6 on the dust removal case 1, be provided with whirl centrifugal tube group 7 on the water-stopping weir plate 6, whirl centrifugal tube group 7 is used for separating the water smoke and the gas that carry in the flue gas, whirl centrifugal tube group 7 butt in outlet flue 3, the output of water-stopping weir plate 6 is provided with sewage separation case 8; the defogging subassembly, the defogging subassembly includes defogging case 9, and dust removal case 1 sets up in defogging case 9, and dust removal case 1 and defogging case 9 pass through outlet flue 3 intercommunication, are provided with gas-water separation folded plate 10 in the defogging case 9, and gas-water separation folded plate 10 is used for gas-liquid separation. The dust removal component is used for removing coarse particles in smoke. The dust removal box 1 is used for installing dust removal equipment of the dust removal box, and the dust removal efficiency of the dust removal box is improved. Above-mentioned inlet 2 is used for the entering of original smog to be convenient for it to let in this dust removal case 1 in, is convenient for to the particulate matter separation in its smog, promotes the cleanliness factor of its air. The smoke outlet 3 is used for discharging smoke subjected to dust removal treatment, and performing subsequent steps. The water curtain turbulence plate 5 is used for cooperating with the water flow sprayed by the nozzle 4 to form a water curtain, so that the particles in the flue gas carrying the particles are attached to the water solution and then are agglomerated, thereby completing washing and mass transfer, and pre-removing part of the particles carried in the flue gas. Above-mentioned water blocking weir plate 6 is used for installing above-mentioned whirl centrifugation nest of tubes 7, and above-mentioned whirl centrifugation nest of tubes 7 is vertical setting up in 1 inside just being located of dust removal case 6 upper ends of water blocking weir plate, and the flue gas through water curtain torrent board 5 gets into to whirl centrifugation nest of tubes 7 in, and the flue gas that is located whirl centrifugation nest of tubes 7 moves down with the spiral mode under centrifugal action, and the water smoke and the gas separation that carry simultaneously in the flue gas to form the water film on 7 inner walls of whirl centrifugation nest of tubes, the mass transfer is accomplished in flue gas and water film contact. The sewage separation box 8 is used for separating settled sludge from water, so that the sludge is convenient to recycle, and the sewage separation box is energy-saving and environment-friendly. The defogging component is used for carrying out secondary treatment on the smog subjected to the rough treatment, so that the cleanliness of the exhausted gas is further improved. The demisting box 9 is used for installing demisting parts, is convenient for purifying smoke in a closed environment, and improves the purification efficiency. The gas-water separation folded plate 10 is used for performing gas-liquid separation on the smoke after the rough separation is completed, and the stability of smoke treatment is improved. Therefore, the dust removal and demisting device can improve the dust removal efficiency, has low water resource consumption and can recycle and treat dust; and the treatment effect on the flue gas with large moisture content is stable.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dedusting and demisting device is characterized by comprising

The dedusting assembly comprises a dedusting box, a smoke inlet and a smoke outlet are formed in the dedusting box, a water curtain turbulence plate is covered on the smoke inlet, smoke can enter the dedusting box through the water curtain turbulence plate, a nozzle is arranged in the dedusting box and aims at the water curtain turbulence plate, a water blocking weir plate is arranged on the dedusting box and is provided with a cyclone centrifugal pipe group, the cyclone centrifugal pipe group is used for separating water mist, particles and gas carried in the smoke, the cyclone centrifugal pipe group is abutted against the smoke outlet, and a sewage separation box is arranged at the output end of the water blocking weir plate;

the defogging subassembly, the defogging subassembly is including removing the fog case, the dust removal case set up in remove the fog case, just the dust removal case with it passes through to remove the fog case the outlet flue intercommunication, it is provided with the gas-water separation folded plate to remove the fog incasement, the gas-water separation folded plate is used for gas-liquid separation.

2. The dust and mist removing device as claimed in claim 1, wherein the cyclone centrifugal tube set comprises a plurality of rigid tube bundles uniformly spaced from the water-blocking weir plate, the water-blocking weir plate is correspondingly provided with a plurality of through holes, the rigid tube bundles are communicated with the sewage separation tank through the water-blocking weir plate, and one end of each of the rigid tube bundles, which is far away from the water-blocking weir plate, is formed into an inclined plane.

3. The dust and mist removing apparatus as claimed in claim 2, wherein an air inducing system is disposed on the dust removing box, and the air inducing system is located at an input end of the smoke inlet.

4. The dust-removing and mist-removing device as claimed in claim 2, wherein the output end of the sewage separation tank is provided with a sewage port and a sludge port, and the output end of the sludge port is provided with a sludge-water separator.

5. The dust and mist removing apparatus as claimed in claim 2, wherein a back washing assembly is provided at an input end of the gas-water separation flap in the mist removing box, and the back washing assembly is used for washing the gas-water separation flap.

6. A dedusting and demisting apparatus as set forth in claim 5 wherein said air-water separating flap is W-shaped or S-shaped in cross section and comprises a plurality of flaps joined to each other, and a gap is formed between adjacent flaps through which smoke can pass.

7. The dust and mist removing apparatus as claimed in claim 1, wherein a water separating tank for containing water separated from the gas-water separating flap is disposed in the mist removing tank, a water level meter is disposed on the water separating tank, a first isolating valve and a process water pipeline are disposed at an output end of the water separating tank, the first isolating valve is used for controlling the process water pipeline and the water separating tank to be connected or disconnected, a water replenishing valve is disposed at a side of the mist removing tank, and a built-in circulating water channel and a built-in air duct are disposed in the mist removing tank.

8. A dust and mist removing apparatus as set forth in claim 7, wherein said dust removing tank is provided with a circulation pump, and a water outlet end of said circulation pump is communicated with said plurality of nozzles.

9. The dust-removing and mist-removing apparatus as claimed in claim 8, wherein the water curtain turbulence plate has a plurality of pores uniformly distributed thereon, and the pores are circular holes.

10. The dust and mist removing apparatus as claimed in claim 1, wherein the smoke inlet is funnel-shaped, and the diameter of the outer end of the smoke inlet is smaller than the diameter of the inner end of the smoke inlet.