CN206424776U

CN206424776U - A kind of screen dust arrester

Info

Publication number: CN206424776U
Application number: CN201720072801.8U
Authority: CN
Inventors: 徐远; 徐方君
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-20
Filing date: 2017-01-20
Publication date: 2017-08-22
Anticipated expiration: 2027-01-20

Abstract

The utility model provides a kind of screen dust arrester, including：Housing, tank and fountain head, the tank is connected to the lower end of the housing, include flue dust primary settling room and aqueous vapor separation expansion chamber in the housing, the flue dust primary settling room is connected with gas approach, the aqueous vapor separation expansion chamber is connected with gas vent, is connected between the flue dust primary settling room and aqueous vapor separation expansion chamber by flue gas pipeline；The fountain head is arranged on the top of the flue dust primary settling room and the top of the flue gas pipeline；Screen is filled with the flue gas pipeline.The utility model fills screen structure in flue gas pipeline, and is sprayed water by fountain head to screen, adds flue gas pipeline reclaimed water and the contact area of flue gas, effectively increases the removal efficiency of flue dust in flue gas.At the same time it can also spray desulfurizing agent into flue gas pipeline by fountain head, while flue dust in removing flue gas, the effect of flue gas desulfurization is played.

Description

A kind of screen dust arrester

Technical field

The utility model is related to flue gas ash removal technical field, more particularly to a kind of screen dust arrester.

Background technology

Contain substantial amounts of flue dust in the flue gas discharged after boiler combustion, if be directly discharged in air, air can be produced Raw severe contamination, therefore, needs to carry out just outwards discharge after dust separation for the flue gas of boiler emission.The dedusting used at present Device generally comprises a tower body being connected with chimney, sprays water smoke to flue gas by sprayer unit in tower body, makes in flue gas Flue dust contact and be arranged in the tank of tower body bottom so as to being deposited to water.But, often there is sprinkling inside this device Less than water droplet or water smoke position, prevent flue dust from fully being contacted with water, and then have impact on the effect of flue gas ash removal.

The content of the invention

The utility model is fully contacted there is provided a kind of flue dust that can make in flue gas with water, and then improves flue gas ash removal effect The screen dust arrester of fruit.

The utility model provides a kind of screen dust arrester, including：Housing, tank and fountain head, the tank connection Include flue dust primary settling room and aqueous vapor separation expansion chamber in the lower end of the housing, the housing, the flue dust primary is heavy Drop room is connected with gas approach, and the aqueous vapor separation expansion chamber is connected with gas vent, the flue dust primary settling room and aqueous vapor It is connected between separation expansion chamber by flue gas pipeline；The fountain head is arranged on top and the institute of the flue dust primary settling room State the top of flue gas pipeline；Screen is filled with the flue gas pipeline.

Further, the trend of the flue gas pipeline is the zigzag of horizontal direction or the zigzag of vertical direction.

Further, a part for the full flue gas pipeline of the screen filling or the flue gas pipeline.

Further, the side wall of the screen and the flue gas pipeline is detachably connected.

Further, the material of the screen is grid-shaped metal material or latticed composite.

Further, the upper edge of the tank is provided with overfall.

Further, the lower edge of the tank is provided with discharge port.

Further, have in the aqueous vapor separation expansion chamber and remove water screen, it is described except water screen is attached to the aqueous vapor In the gas channel for separating on the side wall of expansion chamber or being arranged on aqueous vapor separation expansion chamber.

Further, there is whirlwind moisture separator in the aqueous vapor separation expansion chamber.

Further, desulfurizing agent is contained in the water that the fountain head sprays.

The utility model sets screen structure in flue gas pipeline, and is sprayed water by fountain head to screen, adds flue gas The contact area of pipeline reclaimed water and flue gas, effectively increases the removal efficiency of flue dust in flue gas.At the same time it can also pass through fountain head Desulfurizing agent is sprayed into flue gas pipeline, while flue dust in removing flue gas, the effect of flue gas desulfurization is played.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Fig. 1 is a kind of structural representation of screen dust arrester of the utility model embodiment；

Fig. 2 is the structural representation of another screen dust arrester of the utility model embodiment.

Marked in accompanying drawing：

1 housing

11 flue dust primary settling rooms

111 gas approach

12 aqueous vapors separate expansion chamber

121 gas vents

122 remove water screen

13 flue gas pipelines

131 screens

2 tanks

21 overfalls

22 discharge ports

3 fountain heads.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.

The utility model provides a kind of screen dust arrester, as shown in figure 1, including：Housing 1, tank 2 and fountain head 3, The tank 2, which is connected in the lower end of the housing 1, the housing 1, includes flue dust primary settling room 11 and aqueous vapor separation sedimentation Room 12, the flue dust primary settling room 11 is connected with gas approach 111, and the aqueous vapor separation expansion chamber 12 is connected with gas vent 121, it is connected between the flue dust primary settling room 11 and aqueous vapor separation expansion chamber 12 by flue gas pipeline 13；The fountain head 3 are arranged on the top of the flue dust primary settling room 11 and the top of the flue gas pipeline 13；Filled in the flue gas pipeline 13 There is screen 131.Wherein, the top of the flue dust primary settling room 11 and the top of the flue gas pipeline 13 can set one or The multiple fountain heads 3 of person, the fountain head 3, which sprays water smoke, to be diffused to rapidly on the screen 131 of surrounding.The screen 131 can To fill up the flue gas pipeline 13, a certain section of flue gas pipeline 13 can also be filled in, its material is the higher metal material of intensity Material or composite, latticed mesh form can be rectangle, square or circle etc., and its pore size is according to cigarette The size of soot dust granule is determined in gas.

In the one side of the utility model embodiment, the trend of the flue gas pipeline 13 is level side as shown in Figure 1 To zigzag or vertical direction as shown in Figure 2 zigzag.The design of flue gas pipeline zigzag trend, can effective land productivity With space, maximize the move distance of flue gas in limited space, be more beneficial for removing the flue dust in flue gas.

In the one side of the utility model embodiment, the side wall of the screen 131 and the flue gas pipeline 13 is detachable Ground is connected.Screen is detachably connected on the side wall of flue gas pipeline, convenient dismounting and cleaning to screen.Wherein, connection side Formula can be mode connects for screw, or the clamping of snap, in specific unloading process, first open housing and expose cigarette Air pipe, is then taken out screen by knockout screw or buckle.

In the one side of the utility model embodiment, the upper edge of the tank 2 is provided with overfall 21.It is preferred that Ground, the lower edge of the tank 2 is provided with discharge port 22.Overfall is set, when the water level in tank is higher than the height of overfall When spending, unnecessary water will overflow from overfall, so as to control the water level in tank, the water level in anti-water stopping trough is too high.If Discharge port is put, when needing to clear up the sediment in tank, discharge port can be opened, the sediment of bottom of gullet is clear Go out.

Have in the one side of the utility model embodiment, the aqueous vapor separation expansion chamber 12 and remove water screen 122, institute State except water screen 122 is attached on the side wall of the aqueous vapor separation expansion chamber 12 or be arranged on the gas that aqueous vapor separates expansion chamber 12 In circulation road.Alternatively, whirlwind moisture separator can also be set in the aqueous vapor separation expansion chamber 12.By except water screen or The setting of person's whirlwind moisture separator, can reduce the water content in the flue gas after dedusting, improve the mass dryness fraction of discharge gas.

Contain desulfurizing agent in the water that the one side of the utility model embodiment, the fountain head 3 spray.The desulfurization Agent includes alkaline solution, such as ammoniacal liquor, NaOH solution or Na₂CO₃Solution etc., can be removed in flue gas while dedusting Sulphur, lifts the effect of gas cleaning.By taking ammoniacal liquor as an example, ammoniacal liquor is mixed in a device with flue gas, sulfur dioxide and ammonia in flue gas Water reaction generation sulfurous acid ammonia, realizes the purpose of flue gas desulfurization, meanwhile, generate sulfate solution after oxidation, crystallized, dehydration, Sulfate of ammoniac fertilizer can also be made after drying, output has the byproduct of economic benefit；The reaction speed of this method is than traditional The method for removing sulfur dioxide using lime stone-gypsum is faster, and will not block mesh.Certainly, those skilled in the art It should be appreciated that the desulfurizing agent can also be that existing other can play the material of flue gas desulfurization effect.

During the utility model is specifically used, gas outlet is connected to first by air-introduced machine, starts air inducing Machine, pending flue gas is flowed into flue dust primary settling room from gas approach, has top to set in flue dust primary settling room Fountain head water spray carry out preliminary dust removal process, proceed immediately to the flue of zigzag, the screen table in flue Face is soaked, and the water on screen surface can adsorb the flue dust in flue gas, and the setting of screen adds the contact area of water and flue gas, The flue dust in flue gas is sufficiently removed, especially when containing sulfur elimination in the water that fountain head sprays, can also be gone simultaneously Except sulfur oxide contained in flue gas etc. endangers gas, the clean-up effect of flue gas is further lifted.By the net of flue Gas after change enters aqueous vapor and separates expansion chamber, is provided with aqueous vapor separation expansion chamber except water screen or the separation of whirlwind aqueous vapor Device, gets rid of the moisture in gas, is discharged finally by gas vent.Wherein, fountain head play to flue dust primary settling room and The effect sprayed water in flue, it can realize the function of adding water with extraneous conveyance conduit connection；Can also be with tank phase Even, recycling for the water in tank is realized.

The utility model sets screen structure in flue gas pipeline, and is sprayed water by fountain head to screen, adds flue gas The contact area of pipeline reclaimed water and flue gas, effectively increases the removal efficiency of flue dust in flue gas.At the same time it can also pass through fountain head Alkaline solution is sprayed into flue gas pipeline, while flue dust in removing flue gas, the effect of flue gas desulfurization is played.Use the present invention The problem of device of offer solves prior art gas wash tower reclaimed water and not enough smoke contacts area, it is ensured that the effect of gas cleaning Really.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims

1. a kind of screen dust arrester, it is characterised in that including：

Housing, tank and fountain head, the tank, which is connected in the lower end of the housing, the housing, includes flue dust primary settling Room and aqueous vapor separation expansion chamber, the flue dust primary settling room are connected with gas approach, and the aqueous vapor separation expansion chamber is connected with Gas vent, is connected between the flue dust primary settling room and aqueous vapor separation expansion chamber by flue gas pipeline；

The fountain head is arranged on the top of the flue dust primary settling room and the top of the flue gas pipeline；

Screen is filled with the flue gas pipeline.

2. screen dust arrester as claimed in claim 1, it is characterised in that the trend of the flue gas pipeline is horizontal direction The zigzag of zigzag or vertical direction.

3. screen dust arrester as claimed in claim 1, it is characterised in that the full flue gas pipeline of screen filling or A part for the flue gas pipeline.

4. screen dust arrester as claimed in claim 1, it is characterised in that the side wall of the screen and the flue gas pipeline can Releasably connect.

5. screen dust arrester as claimed in claim 1, it is characterised in that the material of the screen is grid-shaped metal material Or latticed composite.

6. screen dust arrester as claimed in claim 1, it is characterised in that the upper edge of the tank is provided with overflow Mouthful.

7. screen dust arrester as claimed in claim 6, it is characterised in that the lower edge of the tank is provided with excretion Mouthful.

8. screen dust arrester as claimed in claim 1, it is characterised in that there is water removal filter in the aqueous vapor separation expansion chamber Net, it is described except water screen is attached on the side wall of the aqueous vapor separation expansion chamber or be arranged on the air-flow that aqueous vapor separates expansion chamber In passage.

9. screen dust arrester as claimed in claim 1, it is characterised in that there is whirlwind water in the aqueous vapor separation expansion chamber Gas separating device.

10. screen dust arrester as claimed in any one of claims 1-9 wherein, it is characterised in that the water that the fountain head sprays In contain desulfurizing agent.