CN200991624Y - Dust-removal fan - Google Patents

Dust-removal fan Download PDF

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Publication number
CN200991624Y
CN200991624Y CN 200620166176 CN200620166176U CN200991624Y CN 200991624 Y CN200991624 Y CN 200991624Y CN 200620166176 CN200620166176 CN 200620166176 CN 200620166176 U CN200620166176 U CN 200620166176U CN 200991624 Y CN200991624 Y CN 200991624Y
Authority
CN
China
Prior art keywords
intake stack
dedusting fan
dust
staving
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 200620166176
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Chinese (zh)
Inventor
王小平
高文革
王子明
刘辉
郭长友
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China Shenhua Energy Co Ltd
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China Shenhua Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Shenhua Energy Co Ltd filed Critical China Shenhua Energy Co Ltd
Priority to CN 200620166176 priority Critical patent/CN200991624Y/en
Application granted granted Critical
Publication of CN200991624Y publication Critical patent/CN200991624Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A dust removal draught fan is composed of a barrel body (10). A spiral air intake pipe (20) is arranged in the barrel body (10), which is provided with an air inlet that is connected with the external air pipe (22) and an air outlet that is connected with the exhaust pipe (24); nozzles that can spray water along the tangent direction of the spiral pipe wall are interval arranged on the lateral wall of the air intake pipe, while an opening for effusing the water is arranged at the bottom end of the air intake pipe (20) and the bottom of the barrel body is connected with a coal slurry discharge pipe (40). The utility model can effectively remove the dust with a quite wide grain diameter scope in the air current but also has the functions of a whirlwind dust catcher, a spray type dust catcher and a water film dust catcher.

Description

Dedusting fan
Technical field
The utility model relates to dedusting fan, relates in particular to the vertical whirlwind fountain water film dedusting blower fan that is used for the coal washery.
Background technology
At present, in the dressing of coal by washing process of coal, the improvement of coal dust is one and is difficult to solve and very important again affairs.Coal dust is carried out effectively, handles completely and be directly connected to the safety of production operation and field personnel's health of human body.Therefore effective processing of coal dust is to guaranteeing safe production and providing healthy operating environment significant for the staff.
The coal dust particle size distribution of coal washery is very wide, mainly concentrates on particle diameter 0.5-50 μ m, but particle diameter also accounts for significant proportion greater than 50 μ m or less than the dust of 0.5 μ m.Yet,, cyclone dust collectors, water dust scrubber, sack cleaner and electric formula deduster or the like are arranged though the kind of deduster is more in the market.Combination property according to various dedusters considers that they have his own strong points, but all can not effectively, fully handle coal dust, does not promptly have a kind of dedusting fan all to remove scope wide dust like this, so bring certain difficulty for the type selecting of dedusting fan.
Using more 41# dedusting fan in the coal washery now is backblowing cloth pocket type dedusting fan, its principle is as follows: referring to Fig. 1, after dust-contained airflow enters the bottom of casing from airduct, be attached on the outer surface of filter bag 2 through dust behind the cloth bag filtration is long-pending, clean air then passes filter bag 2, is pooled to outlet through each locellus of upper box and discharges.Yet, because continuous work dust discharge, the cloth bag surface can constantly increase adheres to dust, influence cleaning effect, at this moment start back blowing machine and transmission mechanism 1 carries out blowback wind, each filter bag 2 is carried out blowback, make filter bag 2 rapid bulging, can shake off to amass the dust that is attached on the filter bag 2,, can drop on the adhesive tape and discharge from the dust that cloth bag is shaken off down.
Because sack cleaner is mainly used in the following particulate of 1 μ m, so after this dedusting fan used a period of time, owing to the dust cleaning that the particle that adheres on the filter bag 2 is less is unclean, dust removing effects descended gradually, can't satisfy the dedusting requirement of working site.Consider that the coal washery process system itself has slurry circulating system, thus can adopt wet dedusting according to actual conditions, thus effectively remove the very wide dust of particle size distribution range.
Therefore, be necessary to design a kind of new dedusting fan in fact, to overcome above-mentioned defective.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of coal washery coal dust that is applicable to handle and can effectively remove the dedusting fan of the very wide dust of particle size distribution range.
To achieve these goals, dedusting fan of the present utility model is design like this:
A kind of dedusting fan, comprise staving, be provided with spiral helicine intake stack in the described staving, described intake stack has air inlet that is connected with outside airduct and the air outlet that is connected with exhaust duct, being provided with in the sidewall spacers of intake stack can be along the nozzle of the tangential direction water spray of helical form tube wall, and the place, bottom at intake stack is provided with the opening that supplies water and flow out, and the staving bottom is connected with the black water discharge pipe.
Preferably, on tube wall above the intake stack, be interval with shower shape nozzle.
Preferably, in intake stack, be provided with filter screen, and correspondence is provided with shower shape nozzle on the tube wall above the filter screen.
Preferably, the cross section of described filter screen and pipeline forms certain included angle.
Preferably, the black water discharge pipe is provided with water seal.
Preferably, the staving bottom is provided with closed mud discharging mouth.
Preferably, described air outlet is positioned at the upper end of intake stack, and described air inlet is positioned at the lower end of intake stack.
Preferably, described air inlet is positioned at the upper end of intake stack, and described air outlet is positioned at the lower end of intake stack.
Preferably, the curvature of described helical form intake stack increases to air outlet one end gradually from air inlet one end.
Preferably, described staving is cylindrical, and the bottom is taper and dwindles gradually.
Dedusting fan of the present utility model combines modes such as cyclone type dedusting, water film dedusting and fountain dedusting, have the characteristics of cyclone dust collectors, spray type dust separator and water dust scrubber concurrently, can remove the very wide dust of particle size range in the gas, be particularly suitable for the dedusting of working site in the coal washery, better dust removal effect, effectively ensured the job safety of working site and for the staff provides the good operation condition, and the black water after handling after treatment can be recycling.
Description of drawings
Fig. 1 is the side view of common sack cleaner;
Fig. 2 is according to the schematic front view of dedusting fan of the present utility model;
Fig. 3 is the schematic side view according to dedusting fan of the present utility model;
Fig. 4 is the schematic vertical view according to dedusting fan of the present utility model.
The specific embodiment
In first preferred embodiment of the present utility model, in order to solve the technical problem of objective reality, can on the basis of original bag-type dusting blower fan, transform, thereby obtain vertical whirlwind fountain water film dedusting blower fan of the present utility model.
The filter bag 2 of bag-type dusting blower fan and inverse blowing device 1 are removed, the intake stack 20 on the dust removal machine staving inwall are widened increased then, and make its around the staving inwall in the shape of a spiral shape be rotated down, at the bottom of rotating to barrel, as Fig. 2, shown in Figure 3.The staving inner surface requires smooth smooth, does not allow rough and uneven in surface and outstanding weld seam etc.Evenly arrange vaporific nozzle 30 on pipeline inwall in the outer part, spacing is unsuitable excessive, about 300~400mm; And assurance nozzle 30 is sprayed water in intake stack 20 along the barrel tangential direction.Dust-contained airflow from outside airduct 22 tangentially enters intake stack 20, because the turning effort of inlet air flow, the water that is sprayed into by vaporific nozzle 30 forms one deck liquid film at intake stack 20 inner surfaces.Simultaneously, dust is thrown on the tube wall under centrifugal action, contacts with liquid film and is captured.Like this, the reentrainment of dust that can effectively prevent the bounce-back of dust on wall, wash away etc. causes, thus improve efficiency of dust collection.
Described intake stack 20 is connected with the staving inwall and can realizes by any suitable mode well-known to those skilled in the art with being connected of outside airduct 22, exhaust duct 24.And, not only can utilize the side of staving inwall as intake stack 20, also complete pipeline can be fixed on the staving inwall.The material of intake stack 20, shape and opposing are corroded and are guaranteed the required measure of air-tightness, all belong to those of ordinary skills' knowledge category, do not repeat them here.But should be noted in the discussion above that intake stack 20 should have bigger area of section, this helps reducing blast, slows down the wind speed in the pipeline, thereby helps the sedimentation and the capture of dust.
Except on the sidewall of intake stack 20, forming the moisture film, shower shape nozzle 32 can also be set in the middle of pipeline, water is sprayed into the shower shape, so do not got rid of dust to the bucket wall the time by shower shape space by centrifugal force, produce collision, interception and cohesion between grit and the drop, grit is settled out with drop, thereby reach the purpose of dedusting.
Above-mentioned vaporific nozzle 30 is connected with outside water supply installation (not shown) by water supply line 34 with shower shape nozzle 32.The utility model there is no special requirement to water supply line 34, as long as it can satisfy the water requirements of the nozzle (30,32) in intake stack 20.
In intake stack 20, swirling eddy shape in the shape of a spiral moves to the cone bottom of dedusting fan from top to bottom, after arriving the cone bottom, air outlet by intake stack 20 enters exhaust duct 24, and by the discharge of the exhaust outlet in the dedusting fan, the black water that contains dust then flows out from the air outlet of intake stack 20 and the opening of exhaust duct 24 junctions, arrives the staving bottom and enters concentration basin by black water discharge pipe 40.The black water of discharging can be recycled behind the removing foreign matter through handling.
For reaching better dust removing effects, can also in the middle of pipeline, add polylith filter screen 36, and water is sprayed onto on the filter screen 36, thereby remove the dust that is deposited on the filter screen 36 by washing away of current by shower shape nozzle 32.Those of ordinary skills should understand, the cross section of filter screen 36 and nonessential covering whole pipe.And guaranteeing that current can wash away under the prerequisite of dust on the filter screen 36, the surface of filter screen 36 can have suitable angle with the cross section of pipeline.In addition, the surface of filter screen 36 is not must be the structure on plane yet, and it can be arbitrary surface, plane or its combination that helps increasing filter screen 36 and dust contact area.
As can see from Figure 1, black water discharge pipe 40 forms approximate U type pipeline 42 at the link with the staving bottom, its role is to, form water seal by in this U type pipeline 42, accumulating a certain amount of water, can prevent that staving 10 is communicated with atmosphere by black water discharge pipe 40, thereby guarantee that staving 10 inside form certain pressure to exhaust duct 24, make through the gas that purifies and discharge, rather than let out from black water discharge pipe 40 by exhaust duct 24.Simultaneously, on the pipeline bottom surface of the lowest part of U type pipeline 42 or side, should offer closed opening, so that regularly open removing deposition coal slime wherein, thereby prevent that the coal slime that deposits from stopping up U type pipeline 42.
In the present embodiment, the structure that is adopted can make the original parts of bag-type dusting blower fan farthest be utilized, and helps saving improvement cost.Except transforming on the basis of original dedusting fan the vertical whirlwind fountain water film dedusting blower fan that obtains, also exist and much preferred embodiment can realize the utility model.
In second preferred embodiment of the present utility model, the mode that spiral helicine intake stack 20 can adopt the curvature of pipeline from top to bottom to increase gradually is provided with, be that spiral-shaped radius reduces gradually, pipeline is drawn close to the center of staving 10 gradually, help increasing in the pipeline centrifugal force like this with the dust granules of air motion, increase the chance that dust contacts with moisture film on intake stack 20 inwall in the outer part, help the sedimentation of dust more.
Similarly, dust-contained airflow also is not limited to along pipeline and moves from top to bottom, in the 3rd preferred embodiment of the present utility model, the intake stack 20 and the link position of outside airduct 22 can be arranged on the below of dedusting fan staving 10, the opening that flows out for ducted black water is set in both junctions simultaneously.Similar with above each embodiment, because staving 10 is inner airtight, make dust-contained airflow enter intake stack 20 so can guarantee enough pressure.At this moment, the air outlet of intake stack 20 is positioned at the top of staving 10, can directly be connected with the exhaust outlet of dedusting fan.
Although the utility model is to be described by above-mentioned preferred embodiment, but it realizes only being not limited to above-mentioned embodiment, should be realized that without departing from the spirit and scope of the present invention, those skilled in the art can make different variations and modification to the present invention.

Claims (10)

1. dedusting fan, it is characterized in that, this dedusting fan comprises staving, be provided with spiral helicine intake stack in the described staving, described intake stack has air inlet that is connected with outside airduct and the air outlet that is connected with exhaust duct, being provided with in the sidewall spacers of intake stack can be along the nozzle of the tangential direction water spray of helical form tube wall, and is provided with the opening that supplies water and flow out at the place, bottom of intake stack, and the staving bottom is connected with the black water discharge pipe.
2. dedusting fan according to claim 1 is characterized in that, is interval with shower shape nozzle on tube wall above the intake stack.
3. dedusting fan according to claim 1 is characterized in that, is provided with filter screen in intake stack, and correspondence is provided with shower shape nozzle on the tube wall above this filter screen.
4. dedusting fan according to claim 3 is characterized in that, the cross section of described filter screen and pipeline forms certain included angle.
5. according to above-mentioned any described dedusting fan of claim, it is characterized in that the black water discharge pipe is provided with water seal.
6. dedusting fan according to claim 5 is characterized in that, the staving bottom is provided with closed mud discharging mouth.
7. dedusting fan according to claim 6 is characterized in that described air outlet is positioned at the upper end of intake stack, and described air inlet is positioned at the lower end of intake stack.
8. dedusting fan according to claim 6 is characterized in that described air inlet is positioned at the upper end of intake stack, and described air outlet is positioned at the lower end of intake stack
9. dedusting fan according to claim 1 is characterized in that, the curvature of described helical form intake stack increases to air outlet one end gradually from air inlet one end.
10. dedusting fan according to claim 9 is characterized in that, described staving is cylindrical, and the bottom is taper and dwindles gradually.
CN 200620166176 2006-12-15 2006-12-15 Dust-removal fan Expired - Lifetime CN200991624Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620166176 CN200991624Y (en) 2006-12-15 2006-12-15 Dust-removal fan

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Application Number Priority Date Filing Date Title
CN 200620166176 CN200991624Y (en) 2006-12-15 2006-12-15 Dust-removal fan

Publications (1)

Publication Number Publication Date
CN200991624Y true CN200991624Y (en) 2007-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305071A (en) * 2011-07-29 2012-01-04 东北大学 Tube curtain-wet type gradually-changed-density fiber grid composite dust remover for development machine
CN102359390A (en) * 2011-07-29 2012-02-22 孙熙 Combined-type fence-wet fiber grid dust remover
CN106000668A (en) * 2016-07-11 2016-10-12 峨眉山市嘉盛建筑材料有限公司 Cyclone dust collector with spraying device
CN109224750A (en) * 2018-11-02 2019-01-18 朱宇柔 A kind of chemical fertilizer production solid material storage workshop exhausting-dusting spray equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305071A (en) * 2011-07-29 2012-01-04 东北大学 Tube curtain-wet type gradually-changed-density fiber grid composite dust remover for development machine
CN102359390A (en) * 2011-07-29 2012-02-22 孙熙 Combined-type fence-wet fiber grid dust remover
CN102305071B (en) * 2011-07-29 2014-10-01 东北大学 Tube curtain-wet type gradually-changed-density fiber grid composite dust remover for development machine
CN106000668A (en) * 2016-07-11 2016-10-12 峨眉山市嘉盛建筑材料有限公司 Cyclone dust collector with spraying device
CN109224750A (en) * 2018-11-02 2019-01-18 朱宇柔 A kind of chemical fertilizer production solid material storage workshop exhausting-dusting spray equipment

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CX01 Expiry of patent term

Granted publication date: 20071219