CN206508791U - A kind of following current tower dust arrester of utilization dry fog technology - Google Patents

A kind of following current tower dust arrester of utilization dry fog technology Download PDF

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Publication number
CN206508791U
CN206508791U CN201720126280.XU CN201720126280U CN206508791U CN 206508791 U CN206508791 U CN 206508791U CN 201720126280 U CN201720126280 U CN 201720126280U CN 206508791 U CN206508791 U CN 206508791U
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China
Prior art keywords
dry fog
water
dust arrester
utilized
dust
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CN201720126280.XU
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刘冠甫
刘轩甫
刘雪峰
刘雪源
刘咏鑫
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Kunming Otto Environmental Protection Equipment Ltd Co
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Kunming Otto Environmental Protection Equipment Ltd Co
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Abstract

The utility model proposes a kind of following current tower dust arrester of utilization dry fog technology, including water dust cleaning case and desulfurizing tower, gas approach, spray equipment, exhanst gas outlet and circulation stock tank are sequentially with the desulfurizing tower from top to bottom, the spray equipment is connected by circulation pipe with the circulation stock tank, the circulation pipe is provided with circulating pump, the exhanst gas outlet is connected with demister, and the demister is connected with blast pipe, and the blast pipe is provided with dry fog case and air-introduced machine.The utility model reduces the size of desulfurizing tower, the dust in flue gas is tentatively removed using water dust cleaning case, the residual dust in discharge gas is removed using dry fog dedusting technology, the atomizer especially researched and developed is atomized twice to liquid, that is effervescent atomization and pneumatic nebulization, so that being less than 2.5 μm of droplet in whole dry fog case full of diameter, dust removing effects are good, can effectively remove PM2.5.

Description

A kind of following current tower dust arrester of utilization dry fog technology
Technical field
The utility model belongs to technical field of environment protection equipment, and in particular to a kind of following current tower dedusting dress of utilization dry fog technology Put.
Background technology
In industrial and mining enterprises, the improvement to dust is always a great problem.Counted according to the Ministry of Public Health, China's pneumoconiosis turns into duty Industry disease is the first, accounts for the 80% of total occupational disease.Dust in air, granular size is different, distribution is different.The master that dust suppression is administered The respirable dust particle for wanting the dust granules that object is less than 150 μm, especially particle diameter to be less than 10 μm.Although it is total in material Proportion is less than 1% in weight, but its long-term suspension is in air, it is difficult to settle, and can even float hundred kilometers of row sometimes, to people The harm of body is especially big, is to cause pneumoconiosis and the main contributor of atmosphere pollution, seriously threatens the health and lives of the mankind.
Need to carry out desulfurization and dedusting before industrial smoke discharge, use countercurrent tower, the flow velocity of flue gas existing desulfurizer more Relatively low, the size of tower is larger.In addition, existing desulfation dust-extraction device desulfurized effect is preferably, but dust removing effects are not good, handle heel row PM2.5 contents are higher in the gas put.
Utility model content
The purpose of this utility model is a kind of following current tower dust arrester for the utilization dry fog technology for proposing good dedusting effect.
What the technical solution of the utility model was realized in:A kind of following current tower dust arrester of utilization dry fog technology, bag Include and be sequentially with gas approach, spray equipment, exhanst gas outlet and circulation stock tank, institute in desulfurizing tower, the desulfurizing tower from top to bottom State spray equipment to connect with the circulation stock tank by circulation pipe, the circulation pipe is provided with circulating pump, the exhanst gas outlet connection There is demister, the demister is connected with blast pipe, the blast pipe is provided with dry fog case and air-introduced machine, in addition to water dust cleaning case, should Water dust cleaning case is built with water and provided with dividing plate, and the water dust cleaning case is divided under two chambers I and II, the dividing plate by the dividing plate Hold the horizontal plane with water in the water dust cleaning case to be separated by, flue gas inlet pipe is provided with the chamber I, the gas outlet of the flue gas inlet pipe is leaned on The horizontal plane of water in the nearly water dust cleaning case, the chamber II is connected by airway tube with the gas approach of the desulfurizing tower.It is de- Sulphur tower uses following current form, the flow velocity of flue gas is accelerated, so as to reduce the size of tower;Water dust cleaning case is tentatively removed in flue gas Dust, dry fog case removes the residual dust in discharge gas.
More preferably, the dry fog case includes casing, and the casing is provided with air inlet and gas outlet, and the top of the casing is provided with Some atomizers, the atomizer includes being provided with inlet channel, admission line, mixing chamber, water spray in sprayer body, the sprayer body Hole and fumarole, the two ends of the mixing chamber are connected with the inlet channel and hole for water spraying respectively, the admission line with it is described Fumarole is connected and connected by through hole with the mixing chamber.
The operation principle of atomizer is:Pressure in atomizer admission line is more than pressure and the mixing of inlet channel Compression stroke in the pressure of room, admission line mixes with water into mixing chamber and forms bubble, and bubble is in two-phase flow process It is middle to accelerate, deform, expanding, liquid is squeezed into water spray aperture thread and sprayed water in leaving in the extremely short distance in aperture, due to The increase of inside and outside differential pressure and drastically expand in addition explode, brin line is fried into trickleer droplet;The height sprayed from fumarole Very high relative velocity is formed between fast air-flow and droplet, very big frictional force is produced, air-flow produces strong tear to droplet With shear action, droplet is so as to by secondary-atomizing, form the smaller droplet of diameter, while accelerating the speed of service of droplet.
More preferably, in order to reach preferably atomizing effect and spray velocity, a diameter of 1~2mm of the hole for water spraying is described A diameter of 1~3mm of fumarole.
More preferably, the angle between the jet axially bored line and the water spray axially bored line is 5~20 °, to obtain preferably mist Change effect, while obtaining faster spray velocity.
More preferably, the quantity of the fumarole is 2~6, and ring is uniform.
More preferably, baffle plate, the bottom phase of the baffle plate and the casing are provided with close to described gas outlet one end in the casing Every.The structure causes dust directly will not be overflowed from gas outlet.
More preferably, the bottom of the casing is provided with blow-off pipe, and the blow-off pipe is provided with gate valve.
The utility model reduces the size of desulfurizing tower, and the dust in flue gas is tentatively removed using water dust cleaning case, using dry Mist dedusting technology removes the residual dust in discharge gas, and the atomizer especially researched and developed is atomized twice to liquid, i.e. gas Bubble atomization and pneumatic nebulization so that be less than 2.5 μm of droplet in whole dry fog case full of diameter, dust removing effects are good, can effectively go Except PM2.5.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of dry fog case;
Fig. 3 is the structural representation of atomizer;
Fig. 4 is the upward view schematic diagram in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.
The following current tower dust arrester of utilization dry fog technology as shown in Figure 1, including water dust cleaning case 1 and desulfurizing tower 2, desulfurizing tower Gas approach 21, spray equipment 22, exhanst gas outlet 23 and circulation stock tank 24 are sequentially with 2 from top to bottom, spray equipment 22 leads to Cross circulation pipe 27 to connect with circulation stock tank 24, the circulation pipe 27 is provided with circulating pump 28, and exhanst gas outlet 23 is connected with demister 25, The demister 25 is connected with blast pipe 26, and the blast pipe 26 is provided with dry fog case 3 and air-introduced machine 4;Water dust cleaning case 1 built with water simultaneously Provided with dividing plate 12, water dust cleaning case 1 is divided into two chambers I and II, lower end and the water in water dust cleaning case 1 of dividing plate 12 by the dividing plate 12 Horizontal plane be separated by, flue gas inlet pipe 11, the level of gas outlet water in water dust cleaning case of the flue gas inlet pipe 11 are provided with chamber I Face, chamber II is connected by airway tube 13 with the gas approach 21 of desulfurizing tower 2.
Dry fog case 3 as shown in Figures 2 to 4, including casing 31, the two ends of the casing 31 are provided with air inlet 33 and gas outlet 34, the connection airway tube 2 of air inlet 33, gas outlet 34 is connected in blast pipe 5, casing 31 close to the one end of gas outlet 34 provided with baffle plate 35, the bottom of the baffle plate 35 and casing 31 is separated by, and the top of casing 31 is provided with some atomizers 32, and the bottom of casing 31 is provided with Provided with blow-off pipe 36, the blow-off pipe 36 is provided with gate valve 37;Atomizer 32 includes sprayer body 321, be provided with sprayer body 321 into Waterpipe 322, four admission lines 323, mixing chamber 325, hole for water spraying 327 and four fumaroles 326, the two ends of mixing chamber 325 It is connected respectively with inlet channel 322 and hole for water spraying 327, admission line 323 is connected with fumarole 326 and by through hole 324 with mixing Close room 325 to connect, a diameter of 1.2mm of hole for water spraying 327, a diameter of 1.8mm of fumarole 326, the axis of fumarole 326 and water spray Angle theta between the axis of hole 327 is 9 °, and the gentle dry fog machine by prior art of water needed for atomizer 32 is provided.
This is as follows using the operation principle and the course of work of the following current tower dust arrester of dry fog technology:Flue gas is entered by flue gas Pipe 11 flows into chamber I, and flue gas directly impacts the water surface, and at this moment the grit in flue gas is contacted with water, certain severe is produced, so as to sink to In water.And another part grit not contacted with the water surface, the peripheral wall surfaces of directive four in the presence of reaction force, under effect of inertia Submerged, purified flue gas flows to chamber II by the space between dividing plate 12 and the water surface, then enters de- through airway tube 13 In sulphur tower 2, circulation stock tank 24 sprays the SO in lime slurry, flue gas built with lime slurry, spray equipment 222In lime slurry In the presence of reaction precipitation, the flue dust of larger particles converges with lime slurry to be dropped, and demister 25 is gone out the droplet in flue gas, so Flue gas enters dry fog case 3 afterwards.Suppressing dust with dry mist technology, is that water smoke is melted into ultra-fine droplet, when dust-contained airflow bypasses droplet, grit Because inertia can deviate from the air-flow streamed and bump against with droplet and be captured, i.e., touched by the inertia of powder dust particle and drop The effect such as hit, intercept and condense, spread and realize and catching so that the particle diameter of grit becomes big, settles down under gravity, Reach the purpose for removing powder dust particle.If droplet particle diameter is much larger than dust granules, then dust only follows water smoke Air motion around grain, water fog particle is contacted seldom with dust granules or is not in contact with all, and does not reach dust suppression effect. Droplet in this dry fog case 3 full of diameter less than 2.5 μm, flue dust remaining in flue gas is removed, and particularly can effectively be removed PM2.5。
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model Protection domain within.

Claims (10)

1. a kind of following current tower dust arrester of utilization dry fog technology, including desulfurizing tower, it is characterised in that:By upper in the desulfurizing tower Down be sequentially with gas approach, spray equipment, exhanst gas outlet and circulation stock tank, the spray equipment by circulation pipe with it is described Stock tank connection is circulated, the circulation pipe is provided with circulating pump, and the exhanst gas outlet is connected with demister, and the demister is connected with exhaust Pipe, the blast pipe is provided with dry fog case and air-introduced machine, in addition to water dust cleaning case, and the water dust cleaning case is built with water and is provided with dividing plate, The water dust cleaning case is divided into two chambers I and II, the lower end of the dividing plate and the level of water in the water dust cleaning case by the dividing plate Face is separated by, and flue gas inlet pipe, the level of gas outlet water in the water dust cleaning case of the flue gas inlet pipe are provided with the chamber I Face, the chamber II is connected by airway tube with the gas approach of the desulfurizing tower.
2. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 1, it is characterised in that:The dry fog case includes Casing, the casing is provided with air inlet and gas outlet, and the top of the casing is provided with some atomizers, and the atomizer includes spray Inlet channel, admission line, mixing chamber, hole for water spraying and fumarole, the two ends point of the mixing chamber are provided with head body, the sprayer body It is not connected with the inlet channel and hole for water spraying, the admission line is connected with the fumarole and mixed by through hole with described Room is connected.
3. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 2, it is characterised in that:The hole for water spraying it is straight Footpath is 1~2mm, a diameter of 1~3mm of the fumarole.
4. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 3, it is characterised in that:The hole for water spraying it is straight Footpath is 1.2mm, a diameter of 1.8mm of the fumarole.
5. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 3, it is characterised in that:The jet axially bored line Angle between the water spray axially bored line is 5~20 °.
6. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 5, it is characterised in that:The jet axially bored line Angle between the water spray axially bored line is 9 °.
7. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 5, it is characterised in that:The number of the fumarole Measure as 2~6, and ring is uniform.
8. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 7, it is characterised in that:The number of the fumarole Measure as 4.
9. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 2, it is characterised in that:It is close in the casing Described gas outlet one end is provided with baffle plate, and the bottom of the baffle plate and the casing is separated by.
10. the following current tower dust arrester of dry fog technology is utilized as claimed in claim 2, it is characterised in that:The bottom of the casing Portion is provided with blow-off pipe, and the blow-off pipe is provided with gate valve.
CN201720126280.XU 2017-02-13 2017-02-13 A kind of following current tower dust arrester of utilization dry fog technology Active CN206508791U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720126280.XU CN206508791U (en) 2017-02-13 2017-02-13 A kind of following current tower dust arrester of utilization dry fog technology

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Application Number Priority Date Filing Date Title
CN201720126280.XU CN206508791U (en) 2017-02-13 2017-02-13 A kind of following current tower dust arrester of utilization dry fog technology

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CN206508791U true CN206508791U (en) 2017-09-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957144A (en) * 2020-08-23 2020-11-20 陈美林 Wet type mixed dust remover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957144A (en) * 2020-08-23 2020-11-20 陈美林 Wet type mixed dust remover

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