CN206027415U - Synthesize high -efficient ammonia process desulfurization and dust removal system - Google Patents

Synthesize high -efficient ammonia process desulfurization and dust removal system Download PDF

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Publication number
CN206027415U
CN206027415U CN201620904526.7U CN201620904526U CN206027415U CN 206027415 U CN206027415 U CN 206027415U CN 201620904526 U CN201620904526 U CN 201620904526U CN 206027415 U CN206027415 U CN 206027415U
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China
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tube
desulfurizing tower
desulfurization
comprehensive
dust pelletizing
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CN201620904526.7U
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Inventor
孙振动
周文彦
李奎中
吴凤杰
钱跃福
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Zhengzhou Kangningte Environmental Engineering Technology Co Ltd
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Zhengzhou Kangningte Environmental Engineering Technology Co Ltd
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Abstract

The utility model relates to a synthesize high -efficient ammonia process desulfurization and dust removal system, including the desulfurizing tower, the desulfurizing tower divide into the electric precipitation demisting section of upper end and the desulfurization pre -dusting section of lower extreme, desulfurizing tower lower extreme side is equipped with into mouth, desulfurizing tower upper end side is equipped with the outlet flue, the centre of desulfurizing tower is equipped with the grid board, be equipped with a plurality of grid hole that set up side by side on the grid board, the top of grid board is equipped with gas -liquid separation, the top of desulfurizing tower is equipped with high -pressure power supply, the electric precipitation demisting section of desulfurizing tower upper end is equipped with defroster and washing unit, the defroster is established at the outlet flue, the desulfurization pre -dusting section from the top down of desulfurizing tower lower extreme is equipped with second grade circulation system in proper order, one -level circulation system and filtration system. This system's desulfurization, dust collection efficiency are high, strong adaptability, have take up an area of little, the characteristics of small investment, the ammonia process of desulfurization transformation of the little unit of specially adapted, arcola.

Description

A kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system
Technical field
This utility model is related to flue gas deep purifying processing technology field, more particularly to a kind of comprehensive high-efficiency ammonia process of desulfurization Dust pelletizing system.
Background technology
Ammonia-process desulfurization technique is universal in chemical industrial field application, absorbs the SO in sulfuric-acid production tail gas with ammonia2, production Asia Sulphur ammonium and sulphur ammonium.Ammonia process is the efficient, wet method of low power consuming.Ammonia process of desulfurization method is gas-liquid phase reaction, and soon, absorbent is sharp for reaction rate It is high with rate, desulfuration efficiency 95-99% can be kept.Dissolubility of the ammonia in water is more than 20%.Into after the nineties, ammonia process of desulfurization method Apply in China in the trend for gradually rising.But, as the minimum discharge standard of national three ministries and commissions is required and place environmental protection row Put standard appearance, traditional ammonia process of desulfurization method NOXAnd SO2Concentration of emission in dust all cannot meet discharge standard, and it is right to need Technology path carries out upgrading exploitation and device is transformed.
The content of the invention
For defect of the prior art, this utility model provides a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system, takes off Sulfur, efficiency of dust collection are high, strong adaptability, little with taking up an area, and the characteristics of small investment, are particularly well-suited to the ammonia process of little unit, arcola Desulfurizing fly ash.
This utility model is adopted the technical scheme that by solving the above problems, there is provided a kind of comprehensive high-efficiency ammonia process of desulfurization Dust pelletizing system, including desulfurizing tower, the desulfurizing tower is divided into the pre- dedusting section of the desulfurization of the electric precipitation demisting section of upper end and lower end, desulfurization Tower lower end side is provided with smoke inlet, and desulfurizing tower upper side is provided with outlet flue, and the centre of desulfurizing tower is provided with flase floor, on flase floor Multiple grate openings being arranged side by side are provided with, gas-liquid separation device above flase floor, is provided with, the top of desulfurizing tower is provided with high pressure confession Power supply, the electric precipitation demisting section of desulfurizing tower upper end are provided with demister and flusher, and demister is located at outlet flue, under desulfurizing tower The pre- dedusting section of desulfurization at end is sequentially provided with secondary cycle system, primary cycle system and filtration system from top to bottom;
The gas-liquid separation device includes fixed plate, and fixed plate is provided with multiple through holes being arranged side by side, each through hole On be provided with the hollow cylinder that two ends are penetrating and are vertically arranged, the top of each hollow cylinder is equipped with sharp cone distal Cap body, the hollow cylinder side wall under the cap body is provided with smoke through hole.
The primary cycle system includes the first connecting tube, first circulation pump, the second connecting tube, one end of the first connecting tube It is connected with desulfurizing tower, the other end of the first connecting tube is connected with first circulation pump, and one end of the second connecting tube is followed with first Ring pump is connected, and the other end of the second connecting tube is stretched in desulfurizing tower, and the second connecting tube is located between flase floor and fixed plate, is stretched Enter the in desulfurizing tower second connection tube wall and be provided with multiple spray nozzles.
The secondary cycle system includes cyclic oxidation pond, the 3rd connecting tube, second circulation pump, the 4th connecting tube, air blast Machine, the 5th connecting tube, the 6th connecting tube, agitator, the agitator be located at cyclic oxidation pond in, one end of the 3rd connecting tube with Desulfurizing tower is connected, and the other end of the 3rd connecting tube is connected with cyclic oxidation pond, and the 3rd connecting tube is located at the upper of fixed plate Side, one end of the 4th connecting tube are connected with cyclic oxidation pond, and the other end of the 4th connecting tube is connected with second circulation pump, the One end of five connecting tubes is connected with second circulation pump, and the other end of the 5th connecting tube is stretched in desulfurizing tower, the 5th connecting tube position In the top of fixed plate, stretch into the in desulfurizing tower the 5th connection tube wall and be provided with multiple spray nozzles, the one of the 6th connecting tube End is connected with cyclic oxidation pond, and the other end of the 6th connecting tube is connected with aerator.
The filtration system includes filter pump, filter, the 7th connecting tube, the 8th connecting tube, the 7th connecting tube position In the lower section of the first connecting tube, one end of the 7th connecting tube is connected with desulfurizing tower, the other end and filter pump of the 7th connecting tube It is connected, one end of the 8th connecting tube is connected with filter pump, the other end of the 8th connecting tube is connected with filter.
The flusher includes clear water reserviors, water pump, the 9th connecting tube, the tenth connecting tube, one end of the 9th connecting tube with Clear water reserviors are connected, and the other end of the 9th connecting tube is connected with water pump, and one end of the tenth connecting tube is connected with water pump, and the tenth The other end of connecting tube is stretched in desulfurizing tower, and the tenth connecting tube is located at the top of the 5th connecting tube, and the 5th connecting tube and the tenth connects Desulfurizing tower space between adapter forms electric precipitation area, and the tenth connecting tube stretched in desulfurizing tower is provided with multiple spray nozzles.
The section of the grate opening is trapezoidal.
The flase floor and fixed plate are made by anti-corrosion material.
The beneficial effects of the utility model:The system desulfurization, efficiency of dust collection are high, strong adaptability, with little, the small investment of occupation of land The characteristics of, it is particularly well-suited to the ammonia process of desulfurization transformation of little unit, arcola.Flase floor and arranging for grate opening can dividing flue gas Cloth rate improves 100 times or so, and wherein primary cycle system and secondary cycle system can greatly improve ammonia and SO2Or SO3Knot Close, wherein control pH value 6.0 or so, liquid-gas ratio is controlled in 4L/m3Left and right, can greatly increase ammonium sulfate crystallization, in height By SO while effect dedusting3Elimination ratio reach 60%, and demister can remove 70% outlet droplet, so as to meet dust Emission concentration standard.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
For making the purpose of this utility model, technical scheme and beneficial effect clearer, below in conjunction with the accompanying drawings to this practicality New embodiment is described in further detail.
As shown in figure 1, this utility model provides a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system, including desulfurizing tower 1, institute 1 point of pre- dedusting section of the desulfurization of electric precipitation demisting section and lower end for upper end of desulfurizing tower is stated, desulfurizing tower lower end side is provided with smoke inlet 2, desulfurizing tower upper side is provided with outlet flue 3, and the centre of desulfurizing tower 1 is provided with flase floor 4, and flase floor 4 is made up of anti-corrosion material, energy The enough service life for effectively extending flase floor 4.Flase floor 4 is provided with multiple grate openings 5 being arranged side by side, and grate opening 5 cuts Face is trapezoidal, and temperature of the flue gas after flase floor 4 can so further improved, the mass transfer thermal process of gas-liquid is accelerated, Make flue gas being more evenly distributed in desulfurizing tower 1, it is ensured that the absorption efficiency of atomizing spray layer, improve the efficiency of desulfurization and dedusting.
The top of flase floor 4 is provided with gas-liquid separation device 6, and 1 point by desulfurizing tower of gas-liquid separation device 6 is upper and lower two-layer, its It is doctor solution treatment region at the middle and upper levels, lower floor is dedusting liquid treatment region, is connected with respective precipitate and separate system respectively, further Flue gas stream is evenly distributed.The top of desulfurizing tower 1 is provided with high-voltage suppling power 7, generally adopts high-frequency constant current source all-in-one, really Guarantor can provide stable current field, reduce electric spark Generation Rate, and have significant energy saving and efficiency increasing function.The high voltage supply electricity The characteristics of source 7 has symmetrical small volume, lightweight, compact conformation, three-phase load, power factor and efficiency high, with more superior It is electron-donating.
The electric precipitation demisting section of 1 upper end of desulfurizing tower is provided with demister 8 and flusher 9, and demister 8 is located at outlet flue 3, takes off The pre- dedusting section of desulfurization of 1 lower end of sulfur tower is sequentially provided with secondary cycle system 10, primary cycle system 11 from top to bottom and filters system System 12.
The gas-liquid separation device 6 includes fixed plate 61, and fixed plate 61 is provided with multiple through holes 62 being arranged side by side, each The hollow cylinder 63 that two ends are penetrating and are vertically arranged, the top of each hollow cylinder 63 is provided with through hole 62 The cap body 64 of sharp cone distal is equipped with, the 63 side wall of hollow cylinder under the cap body 64 is provided with smoke through hole 65.
The primary cycle system 11 includes the first connecting tube 111, first circulation pump 112, the second connecting tube 113, first One end of connecting tube 111 is connected with desulfurizing tower 1, and the other end of the first connecting tube 111 is connected with first circulation pump 112, the One end of two connecting tubes 113 is connected with first circulation pump 112, and the other end of the second connecting tube 113 is stretched in desulfurizing tower 1, the Two connecting tubes 113 are located between flase floor 4 and fixed plate 61, and 113 tube wall of the second connecting tube stretched in desulfurizing tower 1 is provided with many Individual spray nozzle.
The secondary cycle system 10 includes cyclic oxidation pond 101, the 3rd connecting tube 102, second circulation pump the 103, the 4th Connecting tube 104, aerator 105, the 5th connecting tube 106, the 6th connecting tube 107, agitator 108, the agitator 108 are located at and follow In epoxidation pond 101, one end of the 3rd connecting tube 102 is connected with desulfurizing tower 1, the other end of the 3rd connecting tube 102 and circulation Oxidation pond 101 is connected, and the 3rd connecting tube 102 is located at the top of fixed plate 61, one end and the circulation oxygen of the 4th connecting tube 104 Change pond 101 to be connected, the other end of the 4th connecting tube 104 is connected with second circulation pump 103, one end of the 5th connecting tube 106 It is connected with second circulation pump 103, the other end of the 5th connecting tube 106 is stretched in desulfurizing tower 1, the 5th connecting tube 106 is located at solid The top of fixed board, stretches into 106 tube wall of the 5th connecting tube in desulfurizing tower 1 and is provided with multiple spray nozzles, the 6th connecting tube 107 One end is connected with cyclic oxidation pond 101, and the other end of the 6th connecting tube 107 is connected with aerator 105.
The filtration system 12 includes filter pump 121, filter 122, the 7th connecting tube 123, the 8th connecting tube 124, institute The lower section that the 7th connecting tube 123 is located at the first connecting tube 111 is stated, one end of the 7th connecting tube 123 is connected with desulfurizing tower 1, the The other end of seven connecting tubes 123 is connected with filter pump 121, and one end of the 8th connecting tube 124 is connected with filter pump 121, the The other end of eight connecting tubes 124 is connected with filter 122.
The flusher 9 includes clear water reserviors 91, water pump 92, the 9th connecting tube 93, the tenth connecting tube 94, the 9th connecting tube 93 one end is connected with clear water reserviors 91, and the other end of the 9th connecting tube 93 is connected with water pump 92, and the one of the tenth connecting tube 94 End is connected with water pump 92, and the other end of the tenth connecting tube 94 is stretched in desulfurizing tower 1, and the tenth connecting tube 94 is located at the 5th connecting tube 106 top, 1 space of desulfurizing tower between the 5th connecting tube 106 and the tenth connecting tube 94 form electric precipitation area 13, by corrosion resistant Erosion electroconductive frp anode tube, fishbone needle-like cathode line, high-frequency constant current source form consistent electric field area, empty by high-tension electricity place Pneumoelectric from charged particle make dust, droplet, crystal powered, then adsorb in anode and cathode in the presence of electric field force(This Prior art is, is just no longer described in detail here).The tenth connecting tube 94 stretched in desulfurizing tower 1 is provided with multiple Spray nozzle.
During use, high-temperature flue gas first pass around the outer spraying ventilating device 14 for arranging of desulfurizing tower 1, spraying ventilating device 14 by Big flow spray spout and spraying cooling pipeline composition, into latticed arrangement at the smoke inlet 2, for the cooling of flue gas, generally Two thermometric pattern is selected using three, carrying out detection temperature carries out spraying cooling according to design temperature, protects the anti-corrosion portion of smoke inlet 2 Point, while reducing flue gas flow.The temperature of flue gas is reduced to into 90 DEG C~110 DEG C, the flue gas after temperature is reduced and is entered by smoke inlet 2 Enter in desulfurizing tower 1, by the grate opening 5 on flase floor 4, the spray nozzle sprinkling serosity in the second connecting tube 113, to cigarette for flue gas Gas carries out pre- dedusting and desulfurization, and the precipitate in serosity carries out rough ammonium sulfate crystallization, dry packing etc. through filtration system 12 Technique, makes finished product.Then through hole 62 and smoke through hole 65 of the flue gas on gas-liquid separation device 6, serosity with it is upstream Heat smoke forms great turbulence level, smashes containing desulfurization slurry, substantially increases mass transfer between gas phase and liquid phase, heating surface, Flue gas steadily enters desulfurization reaction zone, and wherein set sharp cone distal cap body 64 can play a kind of effective to the thermal current for rising Protective effect.Then flue gas enters secondary cycle system 10, and wherein each spray nozzle ensure that equally distributed spray Pouring amount, sprays the doctor solution area coverage in section more than 200%, and period is by taking aerator 105 defeated to cyclic oxidation pond 101 Enter oxygen, and the serosity in cyclic oxidation pond 101 is stirred using agitator 108, to reach the mesh for improving oxidation efficiency 's.Then flue gas enters electric precipitation area 13, in the presence of high direct voltage electrostatic field, its ambient gas is ionized, make dust or Droplet particle surface is charged, and charged particle is moved to dust-collecting pipe in the presence of electric field force, and is deposited on dust collector pole, current from Dust leg top end is flowed down, and forms one layer of uniform and stable moisture film, the dust inside pipe is taken away on dust leg.Period rinses 9 intermittent unlatching of device, for removing the dust in pole pipe, while same SO3React with droplet, with reduce the escaping of ammonia, The generation of aerosol.Last flue gas by demister 8, can concentrate by the droplet that the corrugated plating arranged on Jing demisters 8 is collided Flow down, reduce flue gas and carry droplet phenomenon again secretly, it is ensured that flue gas can realize the requirement of discharge standard.
The distributive law of flue gas can be improved 100 times or so by arranging for the flase floor and grate opening of the system, and wherein one-level is followed Loop systems and secondary cycle system can greatly improve ammonia and SO2Or SO3Combination, wherein by pH value control 6.0 or so, Liquid-gas ratio is controlled in 4L/m3Left and right, can greatly increase ammonium sulfate crystallization, by SO while high-effective dust-removing3Elimination ratio reach To 60%, and demister can remove 70% outlet droplet, so as to meet the emission concentration standard of dust.
Used in this patent, the word such as " first ", " second " is come, if limiting parts, those skilled in the art should Know:" first ", the use of " second " are intended merely to facilitate description this utility model and simplify description, and above-mentioned word does not have Special implication.
Ultimate principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description Simply illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model can also There are various changes and modifications, these changes and improvements are both fallen within the range of claimed utility model.This utility model is required Protection domain is defined by appending claims and equivalent.

Claims (8)

1. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system, including desulfurizing tower, it is characterised in that:The desulfurizing tower is divided into upper end The pre- dedusting section of desulfurization of electric precipitation demisting section and lower end, desulfurizing tower lower end side are provided with smoke inlet, and desulfurizing tower upper side is provided with Outlet flue, the centre of desulfurizing tower are provided with flase floor, and flase floor is provided with multiple grate openings being arranged side by side, sets above flase floor The top for having gas-liquid separation device, desulfurizing tower is provided with high-voltage suppling power, and the electric precipitation demisting section of desulfurizing tower upper end is provided with demisting Device and flusher, demister are located at outlet flue, and the pre- dedusting section of desulfurization of desulfurizing tower lower end is sequentially provided with two grades from top to bottom and follows Loop systems, primary cycle system and filtration system.
2. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The gas-liquid separation Device includes fixed plate, and fixed plate is provided with multiple through holes being arranged side by side, and is provided with two ends and leads on each through hole Hollow cylinder that is saturating and being vertically arranged, the top of each hollow cylinder is equipped with the cap body of sharp cone distal, under the cap body Hollow cylinder side wall is provided with smoke through hole.
3. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The primary cycle System includes the first connecting tube, first circulation pump, the second connecting tube, and one end of the first connecting tube is connected with desulfurizing tower, first The other end of connecting tube is connected with first circulation pump, and one end of the second connecting tube is connected with first circulation pump, the second connection The other end of pipe is stretched in desulfurizing tower, and the second connecting tube is located between flase floor and fixed plate, stretches into the second company in desulfurizing tower Adapter tube wall is provided with multiple spray nozzles.
4. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The secondary cycle System includes cyclic oxidation pond, the 3rd connecting tube, second circulation pump, the 4th connecting tube, aerator, the 5th connecting tube, the 6th company Adapter, agitator, the agitator are located in cyclic oxidation pond, and one end of the 3rd connecting tube is connected with desulfurizing tower, and the 3rd connects The other end of adapter is connected with cyclic oxidation pond, and the 3rd connecting tube is located at the top of fixed plate, one end of the 4th connecting tube It is connected with cyclic oxidation pond, the other end of the 4th connecting tube is connected with second circulation pump, one end of the 5th connecting tube and the Two circulating pumps are connected, and the other end of the 5th connecting tube is stretched in desulfurizing tower, and the 5th connecting tube is located at the top of fixed plate, stretches into The 5th connection tube wall in desulfurizing tower is provided with multiple spray nozzles, and one end of the 6th connecting tube is connected with cyclic oxidation pond Logical, the other end of the 6th connecting tube is connected with aerator.
5. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The filtration system Including filter pump, filter, the 7th connecting tube, the 8th connecting tube, the 7th connecting tube is located at the lower section of the first connecting tube, the One end of seven connecting tubes is connected with desulfurizing tower, and the other end of the 7th connecting tube is connected with filter pump, and the one of the 8th connecting tube End is connected with filter pump, and the other end of the 8th connecting tube is connected with filter.
6. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The flusher Including clear water reserviors, water pump, the 9th connecting tube, the tenth connecting tube, one end of the 9th connecting tube is connected with clear water reserviors, the 9th connection The other end of pipe is connected with water pump, and one end of the tenth connecting tube is connected with water pump, and the other end of the tenth connecting tube stretches into de- In sulfur tower, the tenth connecting tube is located at the top of the 5th connecting tube, the desulfurizing tower space between the 5th connecting tube and the tenth connecting tube Electric precipitation area is formed, the tenth connecting tube stretched in desulfurizing tower is provided with multiple spray nozzles.
7. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to claim 1, it is characterised in that:The grate opening Section is trapezoidal.
8. a kind of comprehensive high-efficiency ammonia process of desulfurization dust pelletizing system according to any one in claim 1~7, its feature exist In:The flase floor and fixed plate are made by anti-corrosion material.
CN201620904526.7U 2016-08-19 2016-08-19 Synthesize high -efficient ammonia process desulfurization and dust removal system Active CN206027415U (en)

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Application Number Priority Date Filing Date Title
CN201620904526.7U CN206027415U (en) 2016-08-19 2016-08-19 Synthesize high -efficient ammonia process desulfurization and dust removal system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620904526.7U CN206027415U (en) 2016-08-19 2016-08-19 Synthesize high -efficient ammonia process desulfurization and dust removal system

Publications (1)

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CN206027415U true CN206027415U (en) 2017-03-22

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