CN208642186U - Small-sized living garbage incinerator flue gas preprocessor - Google Patents

Abstract

The utility model discloses a kind of Small-sized living garbage incinerator flue gas preprocessors, including gas inlet, spray quencher, primary adsorption tower, secondary absorption tower and the exhanst gas outlet being sequentially connected, the inside of the spray quencher is equipped with nozzle, demister, absorbing unit are successively arranged inside the primary adsorption tower from the bottom up, is successively arranged multi-stage absorption unit from top to bottom in the secondary absorption tower.The device can effectively cut down the harmful substances such as the longer hydrocarbon of strand in flue gas, particulate matter, soluble organic fraction, be conducive to stability, reliability and the service life of improving the operation of flue gas after-treatment system.

Description

Small-sized living garbage incinerator flue gas preprocessor

Technical field

The utility model relates to consumer waste innocent, minimizing distributing disposal field more particularly to a kind of small-sized lifes Flue gas of garbage furnace living enters preprocess method and preprocessor before after-treatment system.

Background technique

House refuse disposes the concern and approval due to having numerous advantages by society using cleaning burning mode, is current Dispose house refuse important development direction, but its Important Problems faced first is that the processing of incineration flue gas.

In general, the ingredient of incineration flue gas of household garbage and fire box temperature, waste component and state, burning process etc. are many How closely related factor is, and being from the content that the angle of burning fully controls smoke components, especially noxious pollutant only impossible , it is necessary to cooperate stringent flue gas after-treatment system.

High molecular material, such as plastics, rubber, are one of the important components of current house refuse, this substance was burned Cheng Zhong, tends to largely to generate that strand is longer, HC substance of complicated component enters flue gas, and theoretically, this substance can be Carbon dioxide and water can be decomposed under high temperature, oxygen-enriched environment, but burner hearth environment is complicated and changeable, in addition reaction process and mechanism ten Divide complexity, this large amount of substance can be contained in the flue gas often come out of the stove.

The physicochemical characteristic of HC substance and temperature are closely related, the longer component of strand, and condensing temperature is higher.Flue-gas temperature When higher, generally in gaseous state, as flue-gas temperature is gradually reduced, since the longer component of strand, can gradually liquefaction and from Droplet is precipitated in flue gas, is then further condensed into bigger drop, and sweeps along the particulate matter (PM) in flue gas, is formed A kind of viscosity is very big, in pitch shape, distribute the colloidal substance or paste of intense stimulus smell.It is this kind of before flue gas emptying Matter-pole be easily adhered to pipeline, equipment wall surface on, cause runner blocking, equipment failure；After emptying, belong to harmful pollution Object forms secondary pollution.

Particularly with Small-sized living garbage incinerator, it is not preprocessed that rubbish enters stokehold, and burner hearth environment relatively large-scale is burned Furnace is more complicated and changeable, and is less useful for being decomposed using hot environment, so the longer HC substance of strand contains in flue gas Amount is higher, ingredient is more complicated, causes great negative shadow to the reliability, stability and service life of flue gas after-treatment system It rings.

As can developing a kind of flue gas pretreatment system for Small-sized living garbage incinerator, enter subsequent processing in flue gas Before link, the longer HC substance of strand in flue gas can effectively be cut down, then it is steady for improving subsequent smoke processing system The important indicators such as qualitative, reliability and service life all extremely advantageous, so to the research of distributing Consideration of MSW Incineration Technology and Development is of great significance.

Utility model content

The utility model is directed to current Small-sized living garbage incinerator smoke processing system problem encountered, proposes one kind The pretreated method of Small-sized living garbage incinerator flue gas and preprocessor, the utility model can effectively cut down molecule in flue gas The harmful constituents such as the longer hydrocarbon of chain (HC), particle matter (PM) and soluble organic fraction (SOF), to flue gas The steadily and reliably operation of after-treatment system promotes flue gas qualified discharge to provide advantage.

To achieve the goals above, the utility model provides a kind of pretreated method of Small-sized living garbage incinerator flue gas For,

In two stages, the first stage carries out rapid cooling to the higher incineration flue gas of temperature using the aqueous solution of low temperature, It first allows the longer hydrocarbon quick refrigeration of strand in incineration flue gas, undergoes phase transition, drop or particle are formed, at one Before liquid separation drop and particle have little time development, cohesion, together with some particles substance and soluble organic fraction in flue gas Into solution, the temperature of the aqueous solution of the low temperature is 4-8 DEG C；Second stage, by flue gas Slow cooling, promotion does not enter solution Part on-gaseous droplets of hydrocarbonaceous liquid or particle reach full growth, agglomerate, form that size is larger, the higher particle of viscosity, And it is adsorbed and intercepts by porous adsorbing medium.

The porous adsorbing medium of the utility model is preferably ceramics.

The utility model also provides a kind of Small-sized living garbage incinerator flue gas preprocessor, including what is be sequentially connected Gas inlet, spray quencher, primary adsorption tower, secondary absorption tower and exhanst gas outlet；The spray quencher upstream and cigarette The position that gas import is connected is equipped with preceding main air valve, and downstream is equipped with discharge outlet, the discharge outlet and primary adsorption tower lower part Import Taper Pipe be connected；The top exit of the primary adsorption tower is connected by connecting tube with the top inlet of secondary absorption tower, The lower part of the secondary absorption tower is equipped with exit cone, is equipped with rear main air valve after the exit cone, it is described after under main air valve Trip is equipped with exhanst gas outlet；The inside of the spray quencher is equipped with nozzle, successively sets from the bottom up inside the primary adsorption tower There are demister, absorbing unit, is successively arranged multi-stage absorption unit from top to bottom in the secondary absorption tower.

The upstream and downstream of the utility model refers respectively to the direction of flow of flue gas, according to the direction of flow of flue gas, by cigarette The source direction of gas is known as upstream, and the trend of flue gas is known as downstream, such as spray quencher upstream, refers to that flue gas flow direction sprays The pipeline of quencher.What the spray quencher preferably sprayed is the cryogenic fluid with medicament.

The import Taper Pipe is located at the lower part of primary adsorption tower, and the top exit of the primary adsorption tower is connected in connecting tube One end, the other end of the connecting tube are connected in secondary absorption tower, and the secondary absorption tower lower part is equipped with exit cone, described Rear main air valve is equipped with after exit cone, and the downstream of main air valve is connected with exhanst gas outlet after described.

The nozzle has multilayer, and is respectively connected to spray branch pipe；It is all equipped with water valve on the spray branch pipe, and is connected in spray General pipeline.

The discharge outlet is equipped with spray return pipe, and the bottom of the primary adsorption tower is equipped with a tower return pipe, described Secondary absorption tower bottom be equipped with two tower return pipes；The spray return pipe, a tower return pipe, two tower return pipes are total with charge for remittance Pipe is connected, and the charge for remittance general pipeline is exported equipped with phegma.

Bypass pipe is equipped between the gas inlet and exhanst gas outlet, before the bypass pipe of close gas inlet is equipped with By-passing valve, the bypass pipe close to exhanst gas outlet are equipped with rear by-passing valve；Bridge pipe is equipped between the connecting tube and bypass pipe, it is real The connection of existing connecting tube and bypass pipe, and the connection position on bypass pipe is between preceding by-passing valve and rear by-passing valve, it is described Bridge pipe is equipped with bridge joint valve.

The connecting tube is equipped with bridge pipe and is connected with bypass pipe, and connection position is in preceding by-passing valve and rear by-passing valve Between.

The downstream of the gas inlet, preceding main air valve upstream line be equipped with temperature sensor and inlet pressure and sense Device；The connecting tube is equipped with intermediate pressure sensor；It is set on the downstream of rear main air valve, the upstream line of exhanst gas outlet There is outlet pressure sensor.

The absorbing unit includes: the side wall of surrounding, and bottom is equipped with gas-permeable nets, wherein a face side wall is equipped with panel, The outside of another road side wall opposite with the panel is equipped with sealing mechanism；It is filled out by the space that the side wall of gas-permeable nets, surrounding is constituted Filled with adsorbent.Flue gas be free to and be only capable of moving up across gas-permeable nets, to be adsorbed body absorption.

The absorbing unit structure is that shape is similar to drawer, and the adsorbent is high temperature resistant, the inertia of resistance to oxidation is more Porous material, such as ceramics.

The adsorption tower further includes absorption shell, and the installation of corresponding each absorbing unit is offered on the absorption shell Mouthful, and mounting base is equipped with around installing port.

The primary adsorption tower, secondary absorption tower include absorption shell, are provided with installation on the absorption shell The installing port of absorbing unit is equipped with mounting base around the installing port；After the absorbing unit is mounted in adsorption tower, fastening Panel is fixed in mounting base by component, and the sealing mechanism is tightly attached in the interior sidewall surface of the absorption shell.

The absorbing unit of the utility model can be extracted and be installed out of adsorption tower, can according to need replacement absorption Adsorbent inside unit, i.e., unscrew fastening assembly, can be by absorbing unit from adsorption tower after panel and mounting base separation Middle taking-up, for replacing adsorbent, to easily replace.

Mounting means of the absorbing unit in adsorption tower is to be respectively provided with to concave on the side wall of the panel two sides Support slot adsorbs the inside of shell, the position setting supporting rail of corresponding support slot, and the supporting rail and support slot cooperate.Peace When dress, the support slot is directed at supporting rail, then absorbing unit is pushed into tower, and panel is fixed on peace with fastening assembly It fills on seat.

The fit structure of supporting rail and support slot makes the mobile frictional force of absorbing unit become smaller, and facilitates the peace of absorbing unit Dress.

Mounting means of the absorbing unit in adsorption tower is, equal on the side wall of the panel two sides of the absorbing unit Card slot is set, and clamp rail is arranged in the position of corresponding card slot on the inside of absorption shell, and the card slot is coupled with clamp rail.When installation, The card slot is directed at clamp rail, then absorbing unit is pushed into tower, and panel is fixed in mounting base with fastening assembly.

Ibid, card slot is coupled with clamp rail, and the mobile frictional force of absorbing unit is made to become smaller, and facilitates the peace of absorbing unit Dress.

Mounting means of the absorbing unit in adsorption tower is all provided on the side wall of the panel two sides of the absorbing unit Sliding slot is set, sliding rail is arranged in the position of corresponding sliding slot on the inside of absorption shell, and the sliding slot is coupled with sliding rail.It, will when installation The sliding slot is directed at sliding rail, then absorbing unit is pushed into tower, and panel is fixed in mounting base with fastening assembly.

After the absorbing unit is mounted in adsorption tower, the sealing mechanism can be pressed on the interior sidewall surface of absorption shell On.

The spray quencher, primary adsorption tower, secondary absorption tower and its attached zero, component, are all mounted on packaging In case, the container is equipped with door, and the gas inlet, exhanst gas outlet, spray liquid entrance, phegma outlet pass through The side wall of container is exposed.May also include container when necessary plays flap seat, electric wiring channel etc..

Small-sized living garbage incinerator flue gas preprocessor using the above structure, working principle are to come out from incinerator Flue gas enter spray quencher through smoke inlet, allow spray liquid high-temperature flue gas to come into full contact with, spray liquid effect under, flue gas from Spray quencher come out before, temperature is quickly down to 100 DEG C hereinafter, by longer hydrocarbon of strand in flue gas etc. Component liquefaction forms droplet, before droplet is condensed into big drop, together with other substances in flue gas, as particulate matter, Soluble organic fraction or even liquefied water etc. enter spray liquid together and are carried over spray quencher, with this coordinative composition of equipments Water treatment facilities in by spray liquid cooling, purification, and achieve the purpose that recycle.

In existing technology, generally material is adsorbed using active carbon, after absorption, needs to refill Medium generally requires in the process and carries out shutdown processing to it, is replaced using manual type to adsorbing medium, generally It needs to open adsorption tower, adsorbing medium is replaced in the inside for entering adsorption tower, very time-consuming.The utility model is adopted Absorbing unit is installed in adsorption tower, offers installing port on the side wall of adsorption tower, absorbing unit can be convenient from absorption The extraction of tower outer wall, when installation, is installed on side wall by mounting base and fastening assembly.In extraction process, it is only necessary to twist Panel is replaced a direction, is quickly drawn out absorbing unit, then restored the direction of panel, prevent from revealing by loose fastening assembly, It after the feed separation being adsorbed on absorbing unit is gone out, reinstalls into adsorption tower, the utility model can not stop Material is extracted out in the case where burning and installation absorbing unit, improves working efficiency.

The moving process of extraction and the installation of the absorbing unit of the utility model is very smooth, greatly improves efficiency.

According to the direction of advance of flue gas, inlet pressure sensor is disposed on the pipeline of the utility model, temperature passes Sensor, preceding main air valve, spray quencher, primary adsorption tower, intermediate pressure sensor, secondary absorption tower, rear main air valve and outlet Pressure sensor, wherein being additionally provided between the upstream of preceding main air valve and the downstream of rear main air valve and preceding main air valve, spray chilling Device, primary adsorption tower, intermediate pressure sensor, secondary absorption tower, the parallel connection of rear main air valve bypass line, be provided with preceding side The bridge joint valve that port valve and rear by-passing valve further include bridge line and are disposed thereon, bridge line be separately connected before by-passing valve and Pipeline between bypass line between by-passing valve and intermediate pressure sensor and secondary absorption tower afterwards.The utility model is logical Detection pressure and temperature is crossed, judges internal situation, according to these situations, which type of operation decision needs to carry out, and mentions significantly Otherwise high production and operation mode can only just stop work, send someone to enter machine internal check judgement, or judge using camera, no Which kind of mode is managed, the processing time all will be greatly extended, reduces working efficiency.

The utility model has the beneficial effects that can not developed gradually, agglomerate by the liquid hydrocarbon that spray liquid is taken away, Colloidal substance or tarry are formed, primary adsorption tower, secondary absorption tower are sequentially entered, seepage flow passes through each absorbing unit, is adsorbed Adsorbent absorption in unit intercepts, and makes after the longer hydrocarbon of strand, particulate matter etc. may cause in flue gas The component of reason system negative effect is largely cut down, and the after-treatment system in downstream is then drained into through exhanst gas outlet.

Equipment run when, according to temperature sensor data, when flue-gas temperature is lower, can by close portion shunt valve, allow The mode that portion nozzle stops working reduces the infeed of spray liquid；When flue-gas temperature down to 120 DEG C hereinafter, and equipment be in cold conditions When, the infeed of spray liquid can be stopped.

Under normal circumstances, by closing preceding by-passing valve, rear by-passing valve, the mode of preceding main air valve, rear main air valve is opened, allows cigarette Gas is followed by spray quencher, primary adsorption tower, secondary absorption tower.

But: 1) when the constituent content that in flue gas needs remove less, primary adsorption tower is enough competent preprocessing tasks, or It, can be by opening preceding main air valve, bridge joint valve, rear by-passing valve when person's secondary absorption tower breaks down, and close preceding by-passing valve, rear master The mode of air valve only allows primary adsorption tower to work；2) when flue-gas temperature is very low, for example, just furnace lifting when, without spraying quencher work Make, it can be by opening preceding by-passing valve, bridging valve, rear main air valve, and close the mode of preceding main air valve, rear by-passing valve, only allow second level Adsorption tower work；3) when there is adsorption tower to need maintenance, repair, preceding main air valve, bridge joint valve, rear main air valve can be closed, before unlatching By-passing valve and rear by-passing valve, allow flue gas directly to flow to downstream from bypass pipe.

With the operation of equipment, the substance of the colloidal substance, tarry that are precipitated and are formed in flue gas gradually sinks on adsorbent Product, adsorbent gradually increases the filtrational resistance of air-flow, and the adsorption capacity of adsorbent is gradually reduced or even is saturated, and at this moment needs pair Adsorption tower is safeguarded, namely is regenerated to adsorbent.

Judge whether adsorption tower needs to be serviced namely the regenerated judgment basis of adsorbent is sensed from inlet pressure The data of device, intermediate pressure sensor, outlet pressure sensor: when the data of inlet pressure sensor and intermediate pressure sensor Difference be higher than setting value when, illustrate that the adsorbent of primary adsorption tower needs to regenerate；When the data and outlet of intermediate pressure sensor When the difference of the data of pressure sensor is higher than certain setting value, illustrate that the adsorbent of secondary absorption tower needs to regenerate.

When the regeneration of the adsorbent, the fastening assembly is unclamped, extracts absorbing unit out, adsorbent is taken out, by special Door equipment and medicament remove the substance of the colloidal substance and tarry that are deposited on adsorbent, reply the porosity of adsorbent, realize Adsorbent after regeneration ending, is reinstalled absorbing unit, and then absorbing unit is mounted in adsorption tower by the regeneration of adsorbent.

The method and apparatus proposed using the utility model can effectively cut down the particulate matter in incineration flue gas of household garbage Matter, soluble organic fraction and the longer hydrocarbon of strand, be flue gas aftertreatment systems stabilization, efficiently, Reliable work provides advantage, especially can be reduced impact of the flue gas especially severe in some cases to after-treatment system, Excellent basis is established for the final qualified discharge of flue gas.

Detailed description of the invention

Fig. 1 is the main view of Small-sized living garbage incinerator flue-gas treater provided by the utility model.

Fig. 2 is the A of Fig. 1 to partial view.

Fig. 3 is the B-B direction cross-sectional view of Fig. 1.

Fig. 4 is the C-C of Fig. 3 to cross-sectional view.

Fig. 5 is the D direction view of Fig. 3.

Fig. 6 is the E of Fig. 5 to partial view.

Fig. 7 is partial enlarged view at the I of Fig. 3.

Fig. 8 is the scheme one of partial enlarged view at the II of Fig. 4.

Fig. 9 is the scheme two of partial enlarged view at the II of Fig. 4.

Figure 10 is the scheme three of partial enlarged view at the II of Fig. 4.

Figure 11 is the absorbing unit (31) schematic diagram of installation or disassembly process on adsorption tower.

The Small-sized living garbage incinerator flue-gas treater pipe valve arrangement schematic diagram that Figure 12 is proposed by the utility model.

Corresponding relationship of the above-mentioned Fig. 1 between the appended drawing reference and component names into Figure 12 are as follows:

1 incineration flue gas, 2 gas inlets, 3 containers, 4 spray quenchers, 5 discharge outlets, 6 spray general pipeline, 7 spray back Water pipe, 8 import Taper Pipes, 9 charge for remittance general pipeline, 10 1 tower return pipes, 11 primary adsorption towers, 12 2 tower return pipes, 13 secondary absorption towers, By-passing valve, 19 bypass pipes, 20 connections behind main air valve, 16 exhanst gas outlets, 17 outlet pressure sensors, 18 behind 14 exit cones, 15 By-passing valve, 23 inlet pressure sensors, 24 temperature sensors, 25 water valves, 26 spray branch before pipe, 21 intermediate pressure sensors, 22 Main air valve, 31 absorbing units, 32 adsorbents, 33 demisters, 34 bridge joints before pipe, 27 spray liquids, 28 phegmas, 29 nozzles, 30 Pipe, 35 bridge joint valves, 36,37 spray liquid entrances, the outlet of 38 phegmas, 39 side walls, 40 gas-permeable nets, 41 installing ports, 42 adsorption towers Shell, 43 mounting bases, 44 fastening assemblies, 45 panels, 46 supporting rails, 47 support slots, 48 clamp rails, 49 card slots, 50 sliding rails, 51 are slided Slot, 52 sealing mechanisms.

Specific embodiment

The core of the utility model is to provide a kind of flue gas for Small-sized living garbage incinerator to enter after-treatment system Preprocess method before, and the preprocessor based on this method.

In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have The utility model is described in further detail for body embodiment.

Embodiment one:

The Small-sized living garbage incinerator flue gas preprocess method is that in two stages, the first stage uses low temperature Aqueous solution rapid cooling is carried out to the higher incineration flue gas of temperature, first allow in flue gas the longer hydrocarbon of strand sharply It is cooling, it undergoes phase transition, forms droplet or little particle, before a part of droplet and little particle have little time development, cohesion, Enter solution together with harmful substances such as some particles substance (PM), soluble organic fractions (SOF) in flue gas, and molten By this part, harmful substance is handled in the treatment process of liquid, reaches recycling for solution；Second stage is slow by flue gas It is cooling, promote the part non-gaseous carbon hydrogen compound droplet for not entering solution or little particle to reach full growth, agglomerate, formation is worked as It takes measurements larger, the higher particle of viscosity, and is adsorbed and intercept by porous adsorbing medium, by the way that this moieties is situated between from absorption It is removed in matter and has no evilization disposition, realized the regeneration of adsorbing medium and recycle；Thus subtract the longer carbon of strand in flue gas The harmful substances such as hydrogen compound, particulate matter, soluble organic fraction realize the pretreatment of incineration flue gas.

Embodiment two:

The utility model additionally provides a kind of pretreated equipment of Small-sized living garbage incinerator flue gas, and structure is to join See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, wherein Fig. 1 is Small-sized living garbage incinerator flue gas provided by the utility model The main view of processor illustrates the layout and connection relationship of primary clustering；Fig. 2 is the A of Fig. 1 to partial view, illustrates spray Drench the structure of quencher (4)；Fig. 3 is the B-B direction cross-sectional view of Fig. 1, illustrates adsorption tower, especially primary adsorption tower (11) is interior Portion's structure；Fig. 4 is the C-C of Fig. 3 to cross-sectional view, further illustrates the internal structure of primary adsorption tower (11)；Fig. 5 is the D of Fig. 3 Direction view illustrates the shape of container (3)；The E that Fig. 6 is Fig. 5 further illustrates the outer of container (3) to partial view Shape, especially spray liquid entrance (37), the layout of phegma outlet (38).

The Small-sized living garbage incinerator flue gas preprocessor, including gas inlet 2, the spray being sequentially connected Quencher 4, primary adsorption tower 11, secondary absorption tower 13 and exhanst gas outlet 16；4 upstream of spray quencher and gas inlet 2 positions being connected are equipped with preceding main air valve 30, and downstream is equipped with discharge outlet 5, the discharge outlet 5 and primary adsorption tower 11 Import Taper Pipe 8 is connected, and the import Taper Pipe 8 is located at the lower part of primary adsorption tower 11；The top exit of the primary adsorption tower 11 It is connected with one end of connecting tube 20, the other end of the connecting tube 20 is connected with the top inlet of secondary absorption tower 13, described Secondary absorption tower 13 lower part be equipped with exit cone 14, after the position that the exit cone 14 is connected with exhanst gas outlet 16 is equipped with Main air valve 15.

The inside of the spray quencher 4 is equipped with nozzle 29, and the nozzle 29 has multilayer, and is respectively connected to spray branch pipe 26, water valve 25 is all equipped on the spray branch pipe 26, and be connected in spray general pipeline 6, the spray general pipeline 6 equipped with spray liquid entrance 37；When work, flue gas 1 enters spray quencher 4 from the premenstrual main air valve 30 of gas inlet 2, from top to bottom, and spray liquid 27 is from spray Liquid entrance 37 enters spray general pipeline 6, and enters nozzle 29 from each spray branch pipe 26 respectively, then enters spray in spraying form It in the runner of quencher 4, contacts with flue gas 1, cool down to flue gas 1；In order to promote coming into full contact with for spray liquid 27 and flue gas 1, increase Add gas, liquid interaction, the spray direction is opposite with the flow direction of flue gas 1；The longer HC substance of 1 middle-molecular-weihydroxyethyl of flue gas It undergoes phase transition due to cooling, and enters in the solution formed by spraying together with the substances such as PM, SOF.

The discharge outlet 5 is equipped with spray return pipe 7；It is cold in the solution and flue gas 1 that are formed by spraying when work Condensate is polymerized to liquid stream entrainment of the harmful substance in flue gas 1, and a big chunk liquid stream is anxious through the spray discharge spray of return pipe 7 Cooler 4, another part enter primary adsorption tower 11 through import Taper Pipe 8.

The bottom of the primary adsorption tower 11 be equipped with a tower return pipe 10, inside be successively arranged demister from the bottom up 33, absorbing unit 31；When work, the liquid stream of flue gas 1, Part Convergence containing liquid water mist and vapor through import Taper Pipe 8 into Enter in tower, flue gas 1 flows from the bottom up, successively passes through demister 33 and each absorbing unit 31；When flue gas 1 is by demister 33, Droplet therein can be promoted to be condensed into liquid stream, and flow to tower bottom；When flue gas 1 is by absorbing unit 32, with wherein HC droplet It gradually sweeps along other components to develop, agglomerate, become larger, forms colloidal substance and tarry, be gradually adsorbed the adsorbent 32 of unit 31 Absorption intercepts, until flue gas 1 flows out primary adsorption tower 11, into connecting tube 20；From the liquid stream of the entrance of import Taper Pipe 8, through removing All primary adsorption tower 11 is discharged through a tower return pipe 10 in the liquid stream that day with fog 33 is formed.

13 internal structure of secondary absorption tower is substantially similar to primary adsorption tower 11, and inside is successively arranged from top to bottom Multi-stage absorption unit 32, but demister can not be set, the lower part of the absorbing unit 32 is equipped with exit cone 14, and bottom is equipped with two Tower return pipe 12；When work, flue gas 1 enters through connecting tube 20 from the top of secondary absorption tower 13, flows, successively passes through from top to bottom The absorbing units at different levels 32 in the adsorption tower are crossed, are further inhaled the non-gaseous matter in flue gas 1 using absorbing unit 32 It is attached, intercept, flue gas 1 finally through exit cone 14, after main air valve 15 be discharged from exhanst gas outlet 16, and send to flue gas subsequent processing system System；Meanwhile as 1 temperature of flue gas is gradually reduced, vapor therein will form condensed water, gradually downstream to tower bottom, Jing Erta Return pipe 12 is discharged.

The spray return pipe 7, a tower return pipe 10, two tower return pipes 12 are connected with charge for remittance general pipeline 9, the remittance Supply mains 9 is equipped with phegma outlet 38；Liquid stream from spray return pipe 7, a tower return pipe 10, two tower return pipes 12 is being converged Converge in supply mains 9, formed phegma 28, through phegma outlet 38 outflow, be sent to water treatment system, cooled down, dosing and Other processing, are then pumped back again as spray liquid 27, recycle.

Bypass pipe 19 is equipped between the gas inlet 2 and exhanst gas outlet 16, the bypass pipe 19 is equipped with and leans on By-passing valve 22 before nearly gas inlet 2, and the rear by-passing valve 18 close to exhanst gas outlet 16；The connecting tube 20 and bypass pipe 19 it Between be equipped with bridge pipe 34, realize connection 20 and the connection of bypass pipe 19, and the connection position on bypass pipe 19 is in preceding by-passing valve Between 22 and rear by-passing valve 18, the bridge pipe 34 is equipped with bridge joint valve 35；

The downstream of the gas inlet 2, the upstream line of preceding main air valve 30 are equipped with temperature sensor 24 and inlet pressure Sensor 23；The connecting tube 20 is equipped with intermediate pressure sensor 21；The downstream of the rear main air valve 15, exhanst gas outlet 16 Upstream official road be equipped with outlet pressure sensor 17.

The specific arrangement method of the sensor, pipeline, valve, reference can be made to Figure 12, it can be preferably for this field professional people Member understands.

The primary adsorption tower 11, secondary absorption tower 13 include absorption shell 42, are opened on the absorption shell 42 Installing port 41 equipped with each absorbing unit 31 of correspondence is equipped with mounting base 43 around the installing port 41.

31 structure of absorbing unit is Fig. 7 to be combined on the basis of Fig. 3, Fig. 4, shape is similar to drawer, including four The side wall 39 in week, bottom are equipped with gas-permeable nets 40, wherein a face side wall 39 is equipped with panel 45, opposite with the panel 45 is another The outside of road side wall 39 is equipped with sealing mechanism 52；The space being made of the side wall 39 of gas-permeable nets 40, surrounding is filled with adsorbent 32。

The gas-permeable nets 40 can be the net of general stainless steel wire establishment, is also possible to expanded metal lath, is also possible to steel The air permeable plate that the airflow channels such as large number of orifices, slot are cut or stamped out on plate or aluminium sheet can also be and be resistant to certain temperature The air permeable plate or net of the nonmetallic materials production of degree；Air-flow can be allowed to pass through in a word, but adsorbent 32 cannot be allowed by i.e. It can.

The adsorbent 32 is the inertia porous material of high temperature resistant, resistance to oxidation, such as foamed ceramics, foam metal；

Mounting means of the absorbing unit 31 in adsorption tower is, as shown in figure 8, the side wall 39 of 45 two sides of the panel On be respectively provided with the support slot 47 to concave, meanwhile, supporting rail is arranged in the position of the inside, corresponding support slot 47 of adsorbing shell 42 46, when installation, the support slot 47 is directed at supporting rail 46, then absorbing unit 31 is pushed into tower, and with fastening assembly 44 Panel 45 is fixed in mounting base 43.

There are also other ways for installation of the absorbing unit 31 in adsorption tower, as shown in figure 9, in the absorbing unit 31 45 two sides of panel side wall 39 on be respectively provided with card slot 49, meanwhile, adsorb shell 42 on the inside of correspond to card slot 49 position be arranged The card slot 49 when installation, is directed at clamp rail 48, then absorbing unit 31 is pushed into tower by clamp rail 48, and with fastening assembly 44 Panel 45 is fixed in mounting base 43.

Mounting means of the absorbing unit 31 in adsorption tower, can also be as shown in Figure 10, in the absorbing unit 31 45 two sides of panel side wall 39 on be respectively provided with sliding slot 51, meanwhile, the position setting of corresponding sliding slot 51 on the inside of outer 42 shells of adsorption tower The sliding slot 51 when installation, is directed at sliding rail 50, then absorbing unit 31 is pushed into tower by sliding rail 50, and with fastening assembly 44 Panel 45 is fixed in mounting base 43.

Certainly, mounting means of the absorbing unit 31 in adsorption tower, may be based on this kind of methods, using others Specific variation and modification.

By above-mentioned mounting means, after the absorbing unit 31 is mounted in adsorption tower, the sealing mechanism 52 can be compressed In the interior sidewall surface of absorption shell 42.

Each components such as above-mentioned spray quencher 4, primary adsorption tower 11, secondary absorption tower 13 and its attached zero, component, It is all mounted in container 3, the container 3 is equipped with door 36, the gas inlet 2, exhanst gas outlet 16, spray liquid Entrance 37, phegma outlet 38 pass through the side wall of container 3, are exposed；This modularization, integrated design, favorably It in saving occupied area, shortens the construction period, reduces in-site installation cost.

It,, can be by closing part water when the temperature of flue gas 1 is lower according to 24 data of temperature sensor when equipment is run Valve 25, the mode for allowing portion nozzle 29 to stop working reduce the infeed of spray liquid 27；When flue gas 1 temperature down to 120 DEG C hereinafter, And equipment can stop the infeed of spray liquid 27 when being in cold conditions；Under normal circumstances, by closing preceding by-passing valve 22, rear by-passing valve 18, open the mode of preceding main air valve 30, rear main air valve 15, allow flue gas 1 followed by spray quencher 4, primary adsorption tower 11, Then secondary absorption tower 13 is flowed out from exhanst gas outlet 16.

But:

1) when the constituent content for needing to remove in flue gas 1 is less, primary adsorption tower 11 is enough competent preprocessing tasks, or It, can be by opening preceding main air valve 30, bridge joint valve 35, rear by-passing valve 18 when secondary absorption tower 13 breaks down, and close preceding bypass The mode of valve 22, rear main air valve 15 allows flue gas 1 without flow through secondary absorption tower 13, namely primary adsorption tower 11 is only allowed to work.

2) when the temperature of flue gas 1 is very low, for example, just furnace lifting when, work without spraying quencher 4, bypass before opening can be passed through Valve 22, bridge joint valve 35, rear main air valve 15, and the mode of preceding main air valve 30, rear by-passing valve 18 is closed, allow flue gas 1 without flow through level-one Adsorption tower 11, namely secondary absorption tower 13 is only allowed to work.

3) when have spray quencher 4 and adsorption tower in one or two need maintenance, repair when, can close before main gas Valve 30, bridge joint valve 35, rear main air valve 15, open preceding by-passing valve 22 and rear by-passing valve 18, allow flue gas 1 all directly from bypass pipe stream Toward downstream, flue gas 1 is all isolated in spray quencher 4, primary adsorption tower 11 and secondary absorption tower 13.

With the operation of equipment, the substance of the colloidal substance, tarry that are precipitated and are formed in flue gas 1 is gradually on adsorbent 32 Deposition, the porosity decline of adsorbent 32, filtrational resistance increases, and adsorption capacity is gradually reduced or even is saturated, and at this moment needs to suction Attached tower is safeguarded, namely is regenerated to adsorbent 32.

Judge whether adsorption tower needs to be serviced namely the regenerated judgment basis of adsorbent 32 is sensed from inlet pressure The data of device 23, intermediate pressure sensor 21, outlet pressure sensor 17: when inlet pressure sensor 23 and intermediate pressure sense When the difference of the data of device 21 is higher than setting value, illustrate that the adsorbent 32 of primary adsorption tower 11 needs to regenerate；When intermediate pressure sensing When the difference of the data of the data and outlet pressure sensor 17 of device 21 is higher than certain setting value, illustrate the adsorbent of secondary absorption tower 13 32 need to regenerate.

When the regeneration of the adsorbent 32, fastening assembly 43 is unclamped, extracts absorbing unit 31 out, adsorbent 32 is taken out, will inhale The substance of the colloidal substance, tarry that deposit on attached body 32 is removed, and the porosity of adsorbent 32, and the object removed are restored Matter harmlessness disposing；After regeneration ending, adsorbent 32 will be crossed and reinstall absorbing unit 31, and then absorbing unit 31 is installed into resorption In attached tower.

Above to Small-sized living garbage incinerator flue gas preprocess method provided by the utility model, and it is based on the party The structure and working principle of the preprocessor of method is described in detail, and by specific embodiment to the principles of the present invention And embodiment is expounded, and the explanation of embodiment is merely used to help understand the method for the utility model and its core is thought Think, it is noted that for those skilled in the art, without departing from the principle of this utility model, Several improvements and modifications can be made to this utility model, these improvement and modification also fall into the utility model claims In protection scope.

It should be noted that first, it is practical new in order to which this is explicitly described in the description of technical solutions of the utility model "upper" used in the technical characteristic of type, "inner", " side " etc. are normal according to flue-gas treater involved in the utility model When installation for the normal orientation on ground, for example, being "upper" apart from the higher orientation in ground, vertical close to each component The side of direction center line is "inner", is " side " etc. perpendicular to upper and lower direction；Second, the utility model is mainly used for small-sized The flue gas of domestic waste incineration pre-processes, but be not meant to the utility model proposes structure be not applied for other fields It closes, including, the flue gas for medium-sized domestic waste incineration pre-processes, the flue gas of the small incinerator for other type rubbish It pre-processes, or contains the fume treatment of similar harmful substance for other, it might even be possible to the extraordinary exhaust gas as some enterprises Terminal processes etc..

Claims (11)

1. a kind of Small-sized living garbage incinerator flue gas preprocessor, which is characterized in that including the flue gas that is sequentially connected into Mouth (2), spray quencher (4), primary adsorption tower (11), secondary absorption tower (13) and exhanst gas outlet (16)；The spray is anxious The position that cooler (4) upstream is connected with gas inlet (2) is equipped with preceding main air valve (30), and downstream is equipped with discharge outlet (5), described Discharge outlet (5) is connected with the import Taper Pipe (8) of primary adsorption tower (11) lower part；The top exit of the primary adsorption tower (11) It is connected by connecting tube (20) with the top inlet of secondary absorption tower (13), the lower part of the secondary absorption tower (13) is equipped with Prostomum pipe (14), the exit cone (14) are equipped with rear main air valve (15) afterwards, and described rear main air valve (15) downstream goes out equipped with flue gas Mouth (16)；The inside of spray quencher (4) is equipped with nozzle (29), inside the primary adsorption tower (11) from the bottom up successively Equipped with demister (33), absorbing unit (31), it is successively arranged multi-stage absorption unit from top to bottom in the secondary absorption tower (13) (31)。

2. Small-sized living garbage incinerator flue gas preprocessor according to claim 1, which is characterized in that the nozzle (29) there is multilayer, and be respectively connected to spray branch pipe (26)；Water valve (25) all are equipped on the spray branch pipe (26), and are connected in spray General pipeline (6).

3. Small-sized living garbage incinerator flue gas preprocessor according to claim 1, which is characterized in that described to spray out Mouthful (5) are equipped with spray return pipe (7), and the bottom of the primary adsorption tower (11) is equipped with a tower return pipe (10), and described two Grade adsorption tower (13) bottom is equipped with two tower return pipes (12)；The spray return pipe (7), a tower return pipe (10), two tower return water Pipe (12) is connected with charge for remittance general pipeline (9), and the charge for remittance general pipeline (9) is equipped with phegma outlet (38).

4. Small-sized living garbage incinerator flue gas preprocessor according to claim 1, which is characterized in that in the cigarette Bypass pipe (19) are equipped between gas import (2) and exhanst gas outlet (16), before the bypass pipe (19) of close gas inlet (2) is equipped with By-passing valve (22), the bypass pipe (19) close to exhanst gas outlet (16) are equipped with rear by-passing valve (18)；The connecting tube (20) and side Bridge pipe (34) are equipped between siphunculus (19), realize the connection of connecting tube (20) and bypass pipe (19), and on bypass pipe (19) Connection position is between preceding by-passing valve (22) and rear by-passing valve (18), and the bridge pipe (34) is equipped with bridge joint valve (35).

5. Small-sized living garbage incinerator flue gas preprocessor according to claim 1, which is characterized in that the flue gas into The downstream of mouth (2), the upstream line of preceding main air valve (30) are equipped with temperature sensor (24) and inlet pressure sensor (23)；Institute Connecting tube (20) are stated equipped with intermediate pressure sensor (21)；The downstream of the rear main air valve (15), exhanst gas outlet (16) Upstream line is equipped with outlet pressure sensor (17).

6. Small-sized living garbage incinerator flue gas preprocessor according to claim 1, which is characterized in that the absorption Unit (31) includes: the side wall (39) of surrounding, and bottom is equipped with gas-permeable nets (40), wherein a face side wall (39) is equipped with panel (45), the outside of another road side wall (39) opposite with the panel (45) is equipped with sealing mechanism (52)；By gas-permeable nets (40), four The space that the side wall (39) in week is constituted is filled with adsorbent (32).

7. Small-sized living garbage incinerator flue gas preprocessor according to claim 6, which is characterized in that the level-one is inhaled Attached tower (11), secondary absorption tower (13) include absorption shell (42), and installation is provided on the absorption shell (42) and is inhaled The installing port (41) of coupon member (31) is equipped with mounting base (43) around the installing port (41)；Absorbing unit (31) peace After in adsorption tower, panel (45) is fixed on mounting base (43) by fastening assembly (44), and the sealing mechanism (52) is tight It is attached in the interior sidewall surface of absorption shell (42).

8. Small-sized living garbage incinerator flue gas preprocessor according to claim 7, which is characterized in that the absorption is single The mounting means of first (31) in adsorption tower is to be respectively provided with the support slot to concave on the side wall (39) of panel (45) two sides (47), supporting rail (46) are arranged in the position of the inside, corresponding support slot (47) of adsorbing shell (42), the supporting rail (46) with Support slot (47) cooperation.

9. Small-sized living garbage incinerator flue gas preprocessor according to claim 7, which is characterized in that the absorption is single The mounting means of first (31) in adsorption tower is to be all provided on the side wall (39) of panel (45) two sides of the absorbing unit (31) It sets card slot (49), clamp rail (48) are arranged in the position of corresponding card slot (49) on the inside of absorption shell (42), the card slot (49) and card Rail (48) is coupled.

10. Small-sized living garbage incinerator flue gas preprocessor according to claim 7, which is characterized in that the absorption Mounting means of the unit (31) in adsorption tower is all provided on the side wall (39) of panel (45) two sides of the absorbing unit (31) It sets sliding slot (51), sliding rail (50) are arranged in the position of corresponding sliding slot (51) on the inside of absorption shell (42), the sliding slot (51) and sliding Rail (50) is coupled.

11. -10 described in any item Small-sized living garbage incinerator flue gas preprocessors according to claim 1, which is characterized in that The spray quencher (4), primary adsorption tower (11), secondary absorption tower (13) and its attached zero, component, are all mounted on In container (3), the container (3) is equipped with door (36), the gas inlet (2), exhanst gas outlet (16), spray liquid Entrance (37), phegma outlet (38) are exposed by the side wall of container (3).