CN105854555A - Flue gas treatment system - Google Patents

Abstract

The invention provides a flue gas treatment system, and belongs to the technical field of flue gas purification and emission control in coal combustion industry. The flue gas treatment system comprises a denitrification device, a dust removal device and a desulfurization device, wherein the denitrification device comprises a denitrification reactor provided with an outlet, a drug supplying mechanism, and a denitrification device controller; the dust removal device comprises a dust removal upper box body and a dust storage lower box body, wherein the lower part of the upper box body is provided with a gas inlet manifold, and the gas inlet manifold is connected with the outlet of the denitrification reactor; the upper part of the upper box body is provided with a gas discharge manifold; the desulfurization device comprises a desulfurization tower body and a desulfurization device controller, wherein the interior of the desulfurization tower body is divided into a reaction cavity at the upper part and a liquid storage cavity at the lower part, one side of the bottom of the liquid storage cavity is connected with a drug supplying tank through a liquid inlet pipe, and the other side of the bottom of the liquid storage cavity is connected with a liquid outlet manifold; the bottom of the reaction cavity is connected with the gas discharge manifold of the dust removal device, the top of the reaction cavity is connected with a gas discharge pipe, and the gas discharge pipe is provided thereon with a dehumidification and defogging device. The flue gas treatment system has the advantages of being low in cost, high in flue gas purification treatment efficiency, etc.

Description

A kind of smoke processing system

Technical field

The invention belongs to coal-fired industry gas cleaning emission control technique field, relate to one Smoke processing system.

Background technology

China's flue gas purification system is generally divided into denitration dust collecting desulfurization three phases.

Utilize reducing agent (such as NH3, liquefied ammonia, carbamide) with coming " selective " and cigarette NOx in gas reacts and generates N2 and H2O of nontoxic pollution-free.SCR technology is to boiler Flue gas NOx control effect is very notable, technology is the most ripe, has the most become in the world Application at most, the most fruitful a kind of gas denitrifying technology.

Denitration device generally comprises pharmacy jar, water pump, spray gun and compressed air cylinder etc. at present. During work, medicament is delivered to spray gun through water pump, is ejected in burner hearth through spray gun atomization, Complete the reaction with nitrogen oxides in effluent, thus realize denitration.Existing denitrating system and Denitration medicament can remove nitrogen oxides to a certain extent, but denitration efficiency is low, effect Fruit is general, especially holds the usage amount of medicament the most accurately, ammonia easily occurs Escape, or produce new pollutant.

Using sack cleaner in flue gas ash removal, sack cleaner is a kind of dry type filter dirt more Device, it is adaptable to trap tiny, dry, the dust of non-fiber.Flue dust is at air-introduced machine Penetrate in filter bag from the outer surface of filter bag under effect, and the dusty material quilt in gas Filtering material filters and is gathered in the outer surface of filter bag, out be exactly clean gas.By High in the efficiency of dust collection of sack cleaner, more than 99% can be reached, therefore extensively should With.But, existing sack cleaner needs timing to clear up filter bag etc., compares Trouble, life of bag filter is shorter.

Flue gas is carried out the equipment of desulfurization process, in the majority with tower equipment, it is desulfurizing tower, At present desulfurizing tower is required that desulfuration efficiency reaches more than 98%, even require more than 99% Emission request could be met.There is spray prescription formula fixed single, nothing in existing desulfurizing tower Method is grasped flexibly, to cause energy consumption higher, and supplies in traditional desulfurizing tower The passage of flow of flue gas is shorter, and serosity is shorter with the time of the interphase interaction of flue gas, de- Sulfur is not thorough, is unfavorable for environmental protection.

The waste degree of existing flue gas purification system is big, and purification efficiency is low, is this area skill Art personnel's problem demanding prompt solution.

Summary of the invention

It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that a kind of It is precisely controlled dosage, reduces the smoke processing system purifying cost, promoting treatment effeciency.

The purpose of the present invention can be realized by following technical proposal:

A kind of smoke processing system, including denitration device, cleaner and desulphurization plant, Described denitration device includes being provided with the denitration reaction still of outlet, chemical supply machine structure and denitration device Controller, described denitration reaction still connection flue and described chemical supply machine structure, on described flue Sequentially concatenate heating chamber, reative cell and monitoring room, described monitoring indoor placement nitrogen oxygen concentration Sensor, described nitrogen oxygen concentration sensor connects described denitration device controller by circuit, Described chemical supply machine structure includes medicine storing pot and water tank, and described medicine storing pot connects loading pipeline, Being sequentially connected in series liquid pump and the first electrodynamic valve on described loading pipeline, described water tank connects defeated Water lines, described hydraulic pipeline is sequentially connected in series water pump and the second electrodynamic valve, and described first Electrodynamic valve and described second electrodynamic valve all connect described denitration device controller by circuit, Connected with the end of described hydraulic pipeline by described loading pipeline and form mixed pipe line, described The end of mixed pipe line connects some spray guns, and described spray gun is positioned in described denitration reaction still； Described cleaner includes upper box and the lower box of storage ash of dedusting, described upper box Bottom arranges inlet manifold, and described inlet manifold is connected the outlet of described denitration reaction still, The top of described upper box arranges exhaust main, and described upper box communicates with described lower box, The bottom of described lower box arranges pneumatic ash conveying plant；Described desulphurization plant includes desulfurizing tower Body and desulphurization plant controller, in described desulfurizing tower body portion be divided into top reaction chamber and The liquid storage cylinder of bottom, described liquid storage cylinder bottom side connects for medicinal cupping by feed tube, separately Side connects liquid house steward, described in go out liquid house steward branch out differing heights first order arm, N level arm, to N+1 level arm, described first order arm arranges primary pump, institute State and N level pump be set on N level arm, described N+1 level arm arranges N+1 level pump, Described primary pump, N level pump all connect above-mentioned desulphurization plant control by circuit to N+1 level pump Device processed, described primary pump connects the one-level sparge pipe stretching into described reaction chamber, described N level Pump connects the N level sparge pipe stretching into described reaction chamber, and institute is stretched in the connection of described N+1 level pump State the N+1 level sparge pipe of reaction chamber, inspection sulfer sensor is set in described reaction chamber, described Inspection sulfer sensor connects above-mentioned desulphurization plant controller, the end of described reaction chamber by circuit Portion connects the exhaust main of described cleaner, and the top of described reaction chamber connects exhaustor, Dehumidifying demister is set on described exhaustor.

In above-mentioned smoke processing system, connection grug transportation tube is set in described mixed pipe line The entering medicine arm and connect the water inlet pipe of hydraulic pipeline of road, described in enter on medicine arm uniformly Offer some medicine outlet holes, described water inlet pipe uniformly offered some apopores, described in enter Medicine arm extends along mixed pipe line spiral inner wall, and described water inlet pipe is along mixed pipe line inwall Spiral extension, described in enter medicine arm and be disposed adjacent with water inlet pipe.

In above-mentioned smoke processing system, described loading pipeline is provided with first flow Sensor, described first flow sensor is positioned at the exit of described first electrodynamic valve, institute State first flow sensor and connect above-mentioned denitration device controller by circuit；Described water delivery Being provided with second flow sensor on pipeline, described second flow sensor is positioned at described The exit of two electrodynamic valves, described second flow sensor connects above-mentioned denitration by circuit Device controller, the outer end of described spray gun connects air compressor also by pipeline.

In above-mentioned smoke processing system, described inlet manifold taps multiple air intake branch, Every described air intake branch and a dirt pocket group communicate, and every described dirt pocket group is by primary dust removing Room, two-stage dust removal room and tertiary dust removal chamber arrange step by step and form；Every described dirt pocket has Filter chamber and the air-purifying chamber communicated with filter chamber, described filter chamber is provided with multiple filter bag, The bottom of described filter chamber offers air inlet, the bottom of described filter chamber and described nowel Body communicates, and described air-purifying chamber offers gas outlet；The gas outlet of described primary dust removing room is even The air inlet of logical described two-stage dust removal room, the gas outlet connection of described two-stage dust removal room is described The air inlet of tertiary dust removal chamber, the gas outlet of described tertiary dust removal chamber is communicated in described aerofluxus House steward；Described air intake branch is provided with electromagnetic valve, and described air intake branch passes through described electromagnetic valve Selectivity connects air inlet or the air inlet of described two-stage dust removal room of described primary dust removing room Mouthful；The air-purifying chamber of described tertiary dust removal chamber is provided with smoke detectors；In every described filter chamber Being provided with winding-up assembly, described winding-up assembly is made up of pulse valve, injection tube and nozzle, institute Stating injection tube and be connected to described pulse valve, described nozzle is arranged in described injection tube, and Described nozzle is arranged on the overthe openings of every described filter bag.

In above-mentioned smoke processing system, every described dirt pocket group includes that two three grades are removed Dirt room, the gas outlet of first tertiary dust removal chamber is optional be communicated in described exhaust main or The air inlet of second tertiary dust removal chamber, the gas outlet of second tertiary dust removal chamber is communicated in Described exhaust main, described primary dust removing room to described tertiary dust removal chamber filter bag quantity by Level reduce, described inlet manifold is bending, described inlet manifold by defeated ash passage with Described lower box communicates.

In above-mentioned smoke processing system, arrange between described reaction chamber and liquid storage cylinder every Plate, described dividing plate arranges the through hole in some connection two chambeies, and the top of described liquid storage cylinder sets Putting liquid level sensor, described liquid level sensor connects above-mentioned desulphurization plant by circuit and controls Device, described primary pump, N level pump increase step by step to the power of N+1 level pump；Described one-level Sparge pipe is straight tube, and described one-level sparge pipe arranges some spouts one-level shower nozzle upward, Described N level sparge pipe is spiral line type pipe, described N level sparge pipe is uniformly distributed some Spray orifice, described N+1 level sparge pipe is straight tube, described N+1 level sparge pipe is arranged some Spout N+1 level shower nozzle down.

In above-mentioned smoke processing system, described feed tube is serially connected with liquid pump, described Liquid pump connects above-mentioned desulphurization plant controller by circuit；Described N level arm includes Two grades of arms to fourth stage arm, described N level pump include two stage pump to four-stage pump, described N+1 level arm is level V arm, and described N+1 level pump is Pyatyi pump.

In above-mentioned smoke processing system, described dehumidifying demister includes having into cigarette Mouth and the smoke channel box of outlet flue, the periphery cladding cooler bin of described smoke channel box, described cooling The bottom of case arranges inlet, and top arranges liquid outlet, fills cooling in described cooler bin Liquid；Be arranged above and below in described smoke channel box the dividing plate of some parallel placements, and some dividing plates will The inner chamber of smoke channel box is separated into the flue passage of crippling, the diapire of described flue passage On be uniformly arranged some first plate washers, the roof of described flue passage is uniformly arranged some Second plate washer, described first plate washer and the second plate washer arrange separately, described flue passage Diapire on guiding gutter is set, offer liquid-leaking nozzle at the foundation of described first plate washer, described The end linking liquid-leaking nozzle of guiding gutter, the bottom of described smoke channel box arranges liquid collecting cavity, described Liquid collecting cavity is connected with flue passage by above-mentioned liquid-leaking nozzle, the bottom connection of described liquid collecting cavity Discharging tube.

In above-mentioned smoke processing system, described first plate washer and the second plate washer are arc Shape plate, described arc has cambered surface cavity, and described cambered surface cavity is towards flue gas inflow side To, the edge of described first plate washer and the second plate washer is respectively provided with water conservancy diversion featheredge, described flue U-shaped smoke exhaust pipe is connected on the outlet flue of case.

In above-mentioned smoke processing system, described liquid storage cylinder is provided with leakage fluid dram, described row Liquid mouth linking Gypsum Fibrosum retracting device, described Gypsum Fibrosum retracting device includes cyclone, described rotation Arranging overflow pipe and point slurry pipe on stream device, described point of slurry pipe connects vibrations defluid device, described The lower section of vibrations defluid device arranges catch box, the side linking vacuum of described vibrations defluid device Belt dewaterer, described vibrations defluid device includes jarring machine, described jarring machine drive connection Vibrations frame, described vibrations frame is tied up and sets filtering table, cross-under rotary shaft on described vibrations frame, The outer end of described rotary shaft connects position rotaring motor, the end rank of described vacuum belt dewaterer Connecing conveyer belt, the bottom of described conveyer belt is covered with absorbent cotton layer, in described absorbent cotton layer It is mingled with some dry granules, the end linking crystal collecting box of described conveyer belt, described defeated The end sending band also sets up scrapper conveyor.

Compared with prior art, present invention have the advantage that

1, sensor is set at flue end and immediately grasps nitrogen oxygen concentration, in order at fixing stream The ammonia mixed solution concentration that the lower regulation of amount is corresponding, thus carries out the denitration operation being suitable for, And avoid under medication, dose waste and secondary pollution problem.

2, by entering the helical structure setting of medicine arm and the adjoint patch of water inlet pipe so that two The center-aisle of person's collar forms blending space, and utilizes spiral circuit design to increase discharge opeing Line length, comprehensively makes medicinal liquid longer with water incorporation time, is more fully mixed uniformly, carries Rise denitration effect.

3, flue gas desulfurization device designs multistage spray medicine class by differing heights, and according to not The same pump housing that corresponding power is highly set, after the instant fume indication entered of detection, root The pump housing approach to cooperation being suitable for mutually is taked, on the one hand by the multiple stage pump housing according to current criteria Collocation, alleviates the operating pressure of the single pump housing, makes whole power source system life； On the other hand use dose targetedly to spray, save consumption and the use of dose of power, Realize high efficiency corresponding mode of operation.

4, dirt pocket hierarchical uses, and primary dust removing room selectively enables, and can reduce it Operating pressure, improves the service life of filter bag, and does not interferes with when its deashing whole The work efficiency of dirt pocket group.

5, dehumidifying demister simple in construction, uses physical arrangement mode to reduce flue gas dampness, And occupation of land space is little, maintenance cost is low, and the use reducing whole smoke processing system becomes This.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of the smoke processing system of the present invention.

Fig. 2 is the denitration device structural representation of the smoke processing system of the present invention.

Fig. 3 is the cleaner structural representation in the smoke processing system of the present invention.

Fig. 4 is the structural representation of the desulphurization plant in the smoke processing system of the present invention.

Fig. 5 is the structural representation of the dehumidifying demister in the smoke processing system of the present invention Figure.

It is that the structure of Gypsum Fibrosum retracting device in the smoke processing system of the present invention is shown on Fig. 6 It is intended to.

In figure, 100, denitration device；101, denitration reaction still；102, flue；103、 Heating chamber；104, reative cell；105, nitrogen oxygen concentration sensor；106, medicine storing pot；107、 Liquid pump；108, the first electrodynamic valve；109, water tank；110, water pump；111, second Electrodynamic valve；112, air compressor；113, spray gun；200, cleaner；On 210 Casing；220, lower box；230, inlet manifold；231, air intake branch；240, row Gas house steward；250, dirt pocket group；251, primary dust removing room；252, two-stage dust removal room； 253, tertiary dust removal chamber；254, air inlet；255, gas outlet；260, filter bag；270、 Electromagnetic valve；280, smoke detectors；290, winding-up assembly；300, desulphurization plant；301、 Desulfurization tower body；301a, reaction chamber；301b, liquid storage cylinder；302, dividing plate；303, liquid Level sensor；304, for medicinal cupping；306, liquid house steward is gone out；307, first order arm；308、 N level arm；309, N+1 level arm；310, primary pump；311, one-level shower nozzle； 312, N level pump；313, N+1 level pump；314, N+1 level shower nozzle；315, inspection sulfur sensing Device；316, exhaustor；400, dehumidifying demister；401, smoke channel box；402, enter Mouth；403, outlet flue；404, U-shaped smoke exhaust pipe；405, the first plate washer；406、 Second plate washer；407, liquid collecting cavity；408, discharging tube；409, cooler bin；410, enter Liquid mouth；411, liquid outlet；500, Gypsum Fibrosum retracting device；501, cyclone；502、 Filtering table；503, catch box；504, vacuum belt dewaterer；505, conveyer belt；506、 Scrape plate；507, crystal collecting box；600, pneumatic ash conveying plant.

Detailed description of the invention

The following is the specific embodiment of the present invention and combine accompanying drawing, the technical side to the present invention Case is further described, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 6, the invention provides a kind of smoke processing system, including Denitration device 100, cleaner 200 and desulphurization plant 300, described denitration device 100 Including being provided with the denitration reaction still 101 of outlet, chemical supply machine structure and denitration device controller, Described denitration reaction still 101 connects flue 102 and described chemical supply machine structure, described flue 102 On sequentially concatenate heating chamber 103, reative cell 104 and monitoring room, described monitoring indoor are put Putting nitrogen oxygen concentration sensor 105, described nitrogen oxygen concentration sensor 105 is connected by circuit Described denitration device controller, described chemical supply machine structure includes medicine storing pot 106 and water tank 109, described medicine storing pot 106 connects loading pipeline, and described loading pipeline is sequentially connected in series liquid Pump 107 and the first electrodynamic valve 108, described water tank 109 connects hydraulic pipeline, described Water pump 110 and the second electrodynamic valve 111 it is sequentially connected in series on hydraulic pipeline, described first electronic Valve 108 and described second electrodynamic valve 111 all connect described denitration device by circuit and control Device, is connected with the end of described hydraulic pipeline by described loading pipeline and forms mixed pipe line, The end of described mixed pipe line connects some spray guns 113, and described spray gun 113 is positioned at described In denitration reaction still 101；Described cleaner 200 includes upper box 210 He of dedusting The lower box 220 of storage ash, the bottom of described upper box 210 arranges inlet manifold 230, institute State inlet manifold 230 and be connected the outlet of described denitration reaction still 101, described upper box 210 Top exhaust main 240, described upper box 210 and described lower box 220 phase are set Logical, the bottom of described lower box 220 arranges pneumatic ash conveying plant 600；Described desulfurization sets Standby 300 include desulfurization tower body 301 and desulphurization plant controller, described desulfurization tower body 301 Inside is divided into the reaction chamber 301a on top and the liquid storage cylinder 301b of bottom, described liquid storage Chamber 301b bottom side is connected for medicinal cupping 304 by feed tube, and it is total that opposite side connects liquid Pipe 306, described in go out liquid house steward 306 branch out the first order arm 307 of differing heights, N level arm 308 to N+1 level arm 309, described first order arm 307 arranges one Level pump 310, described N level arm 308 arranges N level pump 312, described N+1 Level arm 309 on N+1 level pump 313 is set, described primary pump 310, N level pump 312 to N+1 level pump 313 all connects above-mentioned desulphurization plant controller, described primary pump by circuit 310 connect the one-level sparge pipe stretching into described reaction chamber 301a, and described N level pump 312 is even Connecing the N level sparge pipe stretching into described reaction chamber 301a, described N+1 level pump 313 connects to be stretched Enter the N+1 level sparge pipe of described reaction chamber 301a, in described reaction chamber 301a, inspection is set Sulfer sensor 315, described inspection sulfer sensor 315 connects above-mentioned desulphurization plant by circuit Controller, the aerofluxus that the bottom of described reaction chamber 301a connects described cleaner 200 is total Pipe 240, the top of described reaction chamber 301a connects exhaustor 316, described exhaustor 316 On arrange dehumidifying demister 400.

After coal combustion, produced flue gas is successively by denitration device 100, cleaner 200, desulphurization plant 300 and dehumidifying demister 400 carry out fume treatment, to remove cigarette Nitrogen oxides, flue dust, sulfide and steam in gas, could be arranged after its content is up to standard Put to air, reduce the pollution to air with this.

Specifically, described denitration device 100 uses spray ammonia process, sets in described denitration In standby 100, arrange connection loading pipeline in described mixed pipe line enters medicine arm and connection The water inlet pipe of hydraulic pipeline, described in enter on medicine arm, uniformly to offer some medicine outlet holes, institute State and on water inlet pipe, uniformly offer some apopores, described in enter medicine arm along mixed pipe line Wall spiral extension, described water inlet pipe along mixed pipe line spiral inner wall extend, described in enter medicine Arm is disposed adjacent with water inlet pipe.

Preferably, described loading pipeline is provided with first flow sensor, described first Flow transducer is positioned at the exit of described first electrodynamic valve 108, and described first flow passes Sensor connects above-mentioned denitration device controller by circuit；It is provided with on described hydraulic pipeline Second flow sensor, described second flow sensor is positioned at described second electrodynamic valve 111 Exit, described second flow sensor by circuit connect above-mentioned denitration device control Device, the outer end of described spray gun 113 connects air compressor 112 also by pipeline.

It is noted that sense going out of the first electrodynamic valve 108 with first flow sensor Dose, and immediately detection numerical value is sent to denitration device controller, pass through denitration device Whether controller verifies the first electrodynamic valve 108 according to its opening amount of control manipulation, further Revise the opening amount of the first electrodynamic valve 108.Utilize second flow sensor sensing the simultaneously The water yield of two electrodynamic valves 111, and immediately detection numerical value is sent to denitration device control Whether device, verify the second electrodynamic valve 111 according to control manipulation by denitration device controller Its opening amount, revises the opening amount of the second electrodynamic valve 111 further, so that ammonia mixing The concentration of solution is accurate.

Specifically, denitration device controller is PLC, when system is run, and profit The nitrogen oxygen concentration value in flue gas is detected with the nitrogen oxygen concentration sensor 105 in flue, and will The detected value moment is sent to denitration device controller；Calculated by denitration device controller Ammonia mixed solution concentration needed for this nitrogen oxygen concentration value, medicinal liquid is molten with mixing of water every time The flow of liquid is certain, and when i.e. nitrogen oxygen concentration is higher, the concentration of ammonia mixed solution also needs Adapt to raising could denitration effectively, the concentration of ammonia mixed solution when nitrogen oxygen concentration is relatively low Also need to adapt to reduce just to be avoided that waste and secondary pollution；By denitration device controller control Make the first electrodynamic valve 108 and cooperation openness of the second electrodynamic valve 111, regulate with this The applicable concentration of per moment ammonia mixed solution；Medicinal liquid and water enter mixed pipe line and are formed all Even solution, is finally sprayed in denitration reaction still 101 by spray gun 113 and carries out denitration behaviour Make.

Entering flue gas ash removal link after denitrating flue gas, flue gas ash removal uses cloth bag and removes Dirt method, specifically, described inlet manifold 230 taps multiple air intake branch 231, every institute State air intake branch 231 to communicate with a dirt pocket group 250, every described dirt pocket group 250 by Primary dust removing room 251, two-stage dust removal room 252 and tertiary dust removal chamber 253 arrange step by step and Become；Every described dirt pocket has filter chamber and the air-purifying chamber communicated with filter chamber, described mistake Filter chamber is provided with multiple filter bag 260, and the bottom of described filter chamber offers air inlet 254, The bottom of described filter chamber communicates with described lower box 220, and described air-purifying chamber offers out QI KOU 255；The gas outlet of described primary dust removing room 251 connects described two-stage dust removal room 252 Air inlet, the gas outlet of described two-stage dust removal room 252 connects described tertiary dust removal chamber 253 Air inlet, the gas outlet of described tertiary dust removal chamber 253 is communicated in described exhaust main 240；Described air intake branch 231 is provided with electromagnetic valve 270, and described air intake branch 231 passes through Described electromagnetic valve 270 selectivity connects the air inlet or described of described primary dust removing room 251 The air inlet of two-stage dust removal room 252；The air-purifying chamber of described tertiary dust removal chamber 253 is provided with cigarette Dirt detector 280；Winding-up assembly 290, described winding-up assembly it is provided with in every described filter chamber 290 are made up of pulse valve, injection tube and nozzle, and described injection tube is connected to described pulse Valve, described nozzle is arranged in described injection tube, and described nozzle is arranged on every described filter The overthe openings of bag 260.

Preferably, every described dirt pocket group 250 includes two tertiary dust removal chambers 253, the The gas outlet of one tertiary dust removal chamber 253 is optional be communicated in described exhaust main 240 or The air inlet of second tertiary dust removal chamber 253, giving vent to anger of second tertiary dust removal chamber 253 Mouth is communicated in described exhaust main 240.Described primary dust removing room 251 is removed to described three grades The filter bag quantity of dirt room 253 reduces step by step, to improve the practical efficiency of filter bag.Described Inlet manifold 230 is in bending, and described inlet manifold 230 passes through defeated ash passage with described Lower box 220 communicates, and realizes primary dedusting by described inlet manifold 230.

Specifically, the flue gas after denitration is entered into described dedusting by described inlet manifold 230 Equipment 200, flue gas is uniformly distributed to corresponding described by described air intake branch 231 Dirt pocket group 250, described primary dust removing room 251 is selectively opened, when it is opened, Flue gas is successively by described primary dust removing room 251, described two-stage dust removal room 252 and institute Stating tertiary dust removal chamber 253, the dirt pocket in every one-level all have passed through filtration, i.e. previous The dirt pocket of level enters into the dirt pocket of next stage and carries out secondary filter after filtering, thus Carry out dust thoroughly to process, improve its dust removing effects, finally reach the cigarette of discharge standard Gas will go into described exhaust main 240.

During whole flue gas ash removal, first dirt pocket that flue gas enters is to assume responsibility for Main dustproof function, therefore the operating pressure of the filter bag 260 in this dirt pocket will be relatively big, Its probability gone wrong is the biggest, and the life-span is the most relatively short.In order to improve filter bag 260 Service life, described two-stage dust removal room 252 also can be enabled as first dirt pocket, When the electromagnetic valve 270 being i.e. arranged on described air intake branch 231 is opened, described air inlet is propped up Pipe 231 directly connects described two-stage dust removal room 252, thus closes described primary dust removing room 251, the most described primary dust removing room 251 can be at resting state or deashing state, but Do not interfere with the work efficiency of whole dirt pocket group 250.Thus achieve dividing of dirt pocket Level is used, and improves the service life of equipment.

Flue gas after dedusting enters desulfurization link, in described desulphurization plant 300, described instead Answer and dividing plate 302 is set between chamber 301a and liquid storage cylinder 301b, described dividing plate 302 sets Putting the through hole in some connection two chambeies, the top of described liquid storage cylinder 301b arranges liquid level sensor 303, described liquid level sensor 303 connects above-mentioned desulphurization plant controller, institute by circuit State primary pump 310, the power of N level pump 312 to N+1 level pump 313 increases step by step；Described One-level sparge pipe is straight tube, and described one-level sparge pipe arranges some spouts one-level upward Shower nozzle 311, described N level sparge pipe is spiral line type pipe, on described N level sparge pipe all The some spray orifices of even distribution, described N+1 level sparge pipe is straight tube, described N+1 level sparge pipe On some spouts N+1 level shower nozzle 314 down is set.

Preferably, described feed tube being serially connected with liquid pump, described liquid pump is connected by circuit Above-mentioned desulphurization plant controller；Described N level arm 308 includes that second level arm is to Level Four arm, described N level pump 312 include two stage pump to four-stage pump, described N+1 level Arm 309 is level V arm, and described N+1 level pump 313 is Pyatyi pump, above-mentioned desulfurization Device controller is PLC.

Specifically, first by supplying medicinal cupping 304 in the liquid storage cylinder 301b of desulfurization tower body 301 Add calcium carbonate serosity, until liquid measure arrives liquid level sensor 303 and senses position, desulfurization Device controller controls to stop for medicinal liquid.Flue gas delivers into desulfurization tower body through piping In the reaction chamber 301a of 301, detect sulfur dioxide in flue gas by inspection sulfer sensor 315 Concentration, and by detected value send to desulphurization plant controller, desulphurization plant controller root The concrete pump housing and the quantity of required unlatching is judged according to detected value.If opening primary pump 310 The height pumped up by medicinal liquid is minimum, and the medicinal liquid that one-level shower nozzle 311 sprays is the most suitable with flue gas Stream reaction, its desulfurization intensity is the most weak, is suitable to relatively low sulfur dioxide concentration；If opening N The height that medicinal liquid is pumped up by level pump 312 is placed in the middle, and the spray orifice on N level sparge pipe is towards four sides Carrying out from all directions spraying medicine, make medicinal liquid the most comprehensive with smoke contacts, its desulfurization intensity is the strongest, suitable In higher sulfur dioxide concentration；If opening the height that medicinal liquid is pumped up by N+1 level pump 313 The highest, the medicinal liquid that N+1 level shower nozzle 314 sprays reacts with flue gas reverse counterflow, its desulfurization Intensity is relatively strong, is suitable to higher sulfur dioxide concentration.Also can be by primary pump 310, N level pump 312 and N+1 level pumps 313 carry out various combination collocation and use, to realize optimum being suitable for Reaction effect and the power consumption saved most.

It is noted that generate calcium sulfate after flue gas desulfurization, in order to improve whole place The recovery utilization rate of reason system, in described desulphurization plant 300, described liquid storage cylinder 301b Being provided with leakage fluid dram, described leakage fluid dram linking Gypsum Fibrosum retracting device 500, described Gypsum Fibrosum reclaims Device 500 includes cyclone 501, and described cyclone 501 arranges overflow pipe and point slurry Pipe, described point of slurry pipe connects vibrations defluid device, and the lower section of described vibrations defluid device arranges collection Liquid case 503, the side linking vacuum belt dewaterer 504 of described vibrations defluid device, described Vibrations defluid device includes jarring machine, described jarring machine drive connection vibrations frame, described vibrations Tie up on frame and set filtering table 502, cross-under rotary shaft on described vibrations frame, described rotary shaft Outer end connects position rotaring motor, the end linking conveyer belt of described vacuum belt dewaterer 504 505, the bottom of described conveyer belt 505 is covered with absorbent cotton layer, presss from both sides in described absorbent cotton layer Miscellaneous some dry granules, the end linking crystal collecting box 507 of described conveyer belt 505, The end of described conveyer belt 505 also sets up scrapper conveyor.

Flue gas after denitration dust collecting desulfurization before final discharge by dehumidifying demister 400 processing links carrying out final step, specifically, described dehumidifying demister 400 Including having the smoke channel box 401 of smoke inlet 402 and outlet flue 403, described smoke channel box 401 Periphery cladding cooler bin 409, the bottom of described cooler bin 409 arranges inlet 410, Top arranges liquid outlet 411, fills coolant in described cooler bin 409；Described flue Be arranged above and below in case 401 dividing plate of some parallel placements, and some dividing plates are by smoke channel box 401 Inner chamber be separated into the flue passage of crippling, on the diapire of described flue passage uniformly Some first plate washers 405 are set, the roof of described flue passage is uniformly arranged some Two plate washers 406, described first plate washer 405 is arranged separately with the second plate washer 406, institute State and guiding gutter is set on the diapire of flue passage, open at the foundation of described first plate washer 405 If liquid-leaking nozzle, the end linking liquid-leaking nozzle of described guiding gutter, the end of described smoke channel box 401 Portion arranges liquid collecting cavity 407, and described liquid collecting cavity 407 is by above-mentioned liquid-leaking nozzle and flue passage Connection, the bottom connection discharging tube 408 of described liquid collecting cavity 407.

Preferably, described first plate washer 405 and the second plate washer 406 are arc, institute Stating arc and have cambered surface cavity, described cambered surface cavity is towards flue gas inflow direction, described The edge of the first plate washer 405 and the second plate washer 406 is respectively provided with water conservancy diversion featheredge, described flue Connecting U-shaped smoke exhaust pipe 404 on the outlet flue 403 of case 401, flue gas is through U-shaped smoke evacuation Pipe 404 drains in air.

Described dehumidifying demister 400 simple in construction, uses physical arrangement mode to dehumidify Mist, and occupation of land space is little, maintenance cost is low, reduces making of whole smoke processing system Use cost.

Specific embodiment described herein is only to present invention spirit theory for example Bright.Those skilled in the art can be to described specific embodiment Make various amendment or supplement or use similar mode to substitute, but without departing from The spirit of the present invention or surmount scope defined in appended claims.

Although the most more employing denitration device 100；Denitration reaction still 101；Flue 102；Heating chamber 103；Reative cell 104；Nitrogen oxygen concentration sensor 105；Medicine storing pot 106； Liquid pump 107；First electrodynamic valve 108；Water tank 109；Water pump 110；Second electrodynamic valve 111；Air compressor 112；Spray gun 113；Cleaner 200；Upper box 210；Under Casing 220；Inlet manifold 230；Air intake branch 231；Exhaust main 240；Dirt pocket Group 250；Primary dust removing room 251；Two-stage dust removal room 252；Tertiary dust removal chamber 253；Enter QI KOU 254；Gas outlet 255；Filter bag 260；Electromagnetic valve 270；Smoke detectors 280； Winding-up assembly 290；Desulphurization plant 300；Desulfurization tower body 301；Reaction chamber 301a；Liquid storage Chamber 301b；Dividing plate 302；Liquid level sensor 303；For medicinal cupping 304；Go out liquid house steward 306； First order arm 307；N level arm 308；N+1 level arm 309；Primary pump 310； One-level shower nozzle 311；N level pump 312；N+1 level pump 313；N+1 level shower nozzle 314；Inspection sulfur Sensor 315；Exhaustor 316；Dehumidifying demister 400；Smoke channel box 401；Enter cigarette Mouth 402；Outlet flue 403；U-shaped smoke exhaust pipe 404；First plate washer 405；Second plate washer 406；Liquid collecting cavity 407；Discharging tube 408；Cooler bin 409；Inlet 410；Liquid outlet 411；Gypsum Fibrosum retracting device 500；Cyclone 501；Filtering table 502；Catch box 503； Vacuum belt dewaterer 504；Conveyer belt 505；Scrape plate 506；Crystal collecting box 507； Pneumatic ash conveying plant 600 term such as grade, but it is not precluded from using the probability of other term. Use these terms to be only used to more easily to describe and explain the essence of the present invention；? They are construed to any additional restriction is all contrary with spirit of the present invention.

Claims (10)

1. a smoke processing system, including denitration device, cleaner and desulphurization plant, It is characterized in that, described denitration device includes being provided with the denitration reaction still of outlet, chemical supply machine Structure and denitration device controller, described denitration reaction still connection flue and described chemical supply machine structure, Sequentially concatenating heating chamber, reative cell and monitoring room on described flue, described monitoring indoor are put Putting nitrogen oxygen concentration sensor, described nitrogen oxygen concentration sensor connects described denitration by circuit Device controller, described chemical supply machine structure includes medicine storing pot and water tank, and described medicine storing pot is even Connect loading pipeline, described loading pipeline is sequentially connected in series liquid pump and the first electrodynamic valve, described Water tank connects hydraulic pipeline, and described hydraulic pipeline is sequentially connected in series water pump and second electronic Valve, described first electrodynamic valve and described second electrodynamic valve all connect described denitration by circuit Device controller, described loading pipeline connect with the end of described hydraulic pipeline formed mixed Closing pipeline, the end of described mixed pipe line connects some spray guns, and described spray gun is positioned at described In denitration reaction still；Described cleaner includes upper box and the lower box of storage ash of dedusting, The bottom of described upper box arranges inlet manifold, and it is anti-that described inlet manifold is connected described denitration Answer the outlet of still, the top of described upper box that exhaust main, described upper box and institute are set Stating lower box to communicate, the bottom of described lower box arranges pneumatic ash conveying plant；Described desulfurization Equipment includes desulfurization tower body and desulphurization plant controller, and in described desulfurizing tower body, portion is divided into The reaction chamber on top and the liquid storage cylinder of bottom, described liquid storage cylinder bottom side passes through feed tube Connecting for medicinal cupping, opposite side connects liquid house steward, described in go out liquid house steward and branch out different high Degree first order arm, N level arm to N+1 level arm, described first order arm On primary pump is set, described N level arm arranges N level pump, described N+1 level Arranging N+1 level pump on arm, described primary pump, N level pump to N+1 level pump are all by electricity Road connects above-mentioned desulphurization plant controller, and described reaction chamber is stretched in the connection of described primary pump One-level sparge pipe, described N level pump connects the N level sparge pipe stretching into described reaction chamber, institute State N+1 level pump and connect the N+1 level sparge pipe stretching into described reaction chamber, in described reaction chamber Arranging inspection sulfer sensor, described inspection sulfer sensor connects above-mentioned desulphurization plant control by circuit Device processed, the bottom of described reaction chamber connects the exhaust main of described cleaner, described instead The top answering chamber connects exhaustor, and described exhaustor arranges dehumidifying demister.

Smoke processing system the most according to claim 1, it is characterised in that described Arrange in mixed pipe line and connect entering medicine arm and connecting the water inlet of hydraulic pipeline of loading pipeline Arm, described in enter on medicine arm, uniformly to offer some medicine outlet holes, on described water inlet pipe all Even offer some apopores, described in enter medicine arm and extend along mixed pipe line spiral inner wall, institute State water inlet pipe along mixed pipe line spiral inner wall extend, described in enter medicine arm and water inlet pipe It is disposed adjacent.

Smoke processing system the most according to claim 1 and 2, it is characterised in that First flow sensor, described first flow sensor position it is provided with on described loading pipeline In the exit of described first electrodynamic valve, described first flow sensor is connected by circuit Above-mentioned denitration device controller；Second flow sensor it is provided with on described hydraulic pipeline, Described second flow sensor is positioned at the exit of described second electrodynamic valve, described second Quantity sensor connects above-mentioned denitration device controller by circuit, and the outer end of described spray gun is also Air compressor is connected by pipeline.

Smoke processing system the most according to claim 1, it is characterised in that described Inlet manifold taps multiple air intake branch, every described air intake branch and a dirt pocket group and communicates, Every described dirt pocket group is arranged step by step by primary dust removing room, two-stage dust removal room and tertiary dust removal chamber Row form；Every described dirt pocket has filter chamber and the air-purifying chamber communicated with filter chamber, institute Stating filter chamber and be provided with multiple filter bag, the bottom of described filter chamber offers air inlet, institute The bottom stating filter chamber communicates with described lower box, and described air-purifying chamber offers gas outlet； The air inlet of the described two-stage dust removal room of connection, gas outlet of described primary dust removing room, described two The gas outlet of level dirt pocket connects the air inlet of described tertiary dust removal chamber, described 3-stage dust-removal The gas outlet of room is communicated in described exhaust main；Described air intake branch is provided with electromagnetic valve, institute State air intake branch and connected the air inlet of described primary dust removing room by described electromagnetic valve selectivity Or the air inlet of described two-stage dust removal room；The air-purifying chamber of described tertiary dust removal chamber is provided with flue dust Detector；Be provided with winding-up assembly in every described filter chamber, described winding-up assembly by pulse valve, Injection tube and nozzle composition, described injection tube is connected to described pulse valve, and described nozzle is pacified It is contained in described injection tube, and described nozzle is arranged on the overthe openings of every described filter bag.

Smoke processing system the most according to claim 4, it is characterised in that every institute Stating dirt pocket group and include two tertiary dust removal chambers, the gas outlet of first tertiary dust removal chamber can Select to be communicated in described exhaust main or the air inlet of second tertiary dust removal chamber, second The gas outlet of tertiary dust removal chamber is communicated in described exhaust main, and described primary dust removing room is to institute The filter bag quantity stating tertiary dust removal chamber reduces step by step, and described inlet manifold is bending, institute State inlet manifold to be communicated with described lower box by defeated ash passage.

Smoke processing system the most according to claim 1, it is characterised in that described Dividing plate is set between reaction chamber and liquid storage cylinder, described dividing plate arranges some connection two chambeies Through hole, the top of described liquid storage cylinder arranges liquid level sensor, and described liquid level sensor passes through Circuit connects above-mentioned desulphurization plant controller, and described primary pump, N level pump are to N+1 level pump Power increase step by step；Described one-level sparge pipe is straight tube, and described one-level sparge pipe sets Putting some spouts one-level shower nozzle upward, described N level sparge pipe is spiral line type pipe, institute Stating and be uniformly distributed some spray orifices on N level sparge pipe, described N+1 level sparge pipe is straight tube, Some spouts N+1 level shower nozzle down is set on described N+1 level sparge pipe.

Smoke processing system the most according to claim 1, it is characterised in that described Being serially connected with liquid pump on feed tube, described liquid pump connects above-mentioned desulphurization plant by circuit and controls Device；Described N level arm include second level arm to fourth stage arm, described N level pump Including two stage pump to four-stage pump, described N+1 level arm is level V arm, described N+1 level pump is Pyatyi pump.

Smoke processing system the most according to claim 1, it is characterised in that described Dehumidifying demister includes the smoke channel box with smoke inlet and outlet flue, described smoke channel box Periphery cladding cooler bin, the bottom of described cooler bin arranges inlet, and top arranges out liquid Mouthful, fill coolant in described cooler bin；Described smoke channel box is arranged above and below some equal The dividing plate that row is placed, the inner chamber of smoke channel box is separated into the flue of crippling by some dividing plates Path, the diapire of described flue passage is uniformly arranged some first plate washers, described flue Some second plate washers, described first plate washer and the second plate washer it is uniformly arranged on the roof of path Arrange separately, the diapire of described flue passage arranges guiding gutter, described first plate washer Foundation at offer liquid-leaking nozzle, the end of described guiding gutter linking liquid-leaking nozzle, described flue The bottom of case arranges liquid collecting cavity, and described liquid collecting cavity is by above-mentioned liquid-leaking nozzle with flue passage even Logical, the bottom connection discharging tube of described liquid collecting cavity.

Smoke processing system the most according to claim 8, it is characterised in that described First plate washer and the second plate washer are arc, and described arc has cambered surface cavity, institute State cambered surface cavity towards flue gas inflow direction, described first plate washer and the edge of the second plate washer It is respectively provided with water conservancy diversion featheredge, the outlet flue of described smoke channel box connects U-shaped smoke exhaust pipe.

Smoke processing system the most according to claim 1, it is characterised in that institute State liquid storage cylinder and be provided with leakage fluid dram, described leakage fluid dram linking Gypsum Fibrosum retracting device, described Gypsum Fibrosum Retracting device includes cyclone, and described cyclone arranges overflow pipe and point slurry pipe, described Dividing slurry pipe to connect vibrations defluid device, the lower section of described vibrations defluid device arranges catch box, institute Stating the side linking vacuum belt dewaterer of vibrations defluid device, described vibrations defluid device includes Jarring machine, described jarring machine drive connection vibrations frame, described vibrations frame is tied up and sets filtering table, Cross-under rotary shaft on described vibrations frame, the outer end of described rotary shaft connects position rotaring motor, institute Stating the end linking conveyer belt of vacuum belt dewaterer, the bottom of described conveyer belt is covered with Absorbent cotton layer, is mingled with some dry granules, the end of described conveyer belt in described absorbent cotton layer End linking crystal collecting box, the end of described conveyer belt also sets up scrapper conveyor.