CN107954565A - A kind of chemical-industrial emissions total system - Google Patents

Abstract

The invention discloses a kind of chemical-industrial emissions total system, solve the problems, such as that processing system cost is big, energy waste is serious among processing procedure there is causing since processing mode is unreasonable among three-protection design process, cause treatment effeciency low, handle the defects of spending cost big.Its key points of the technical solution are that sewage disposal system, further includes, sludge storage pond, the sludge in sewage disposal system is connected by least one sludge pump with sludge storage pond；Sludge treating system, sludge treating system includes sequentially connected anhydration system sludge incinerating system, afterheat utilizing system and flue gas purification system, exhaust treatment system includes gas collecting apparatus to the gas sampling produced in sewage disposal system and sludge treating system, and with biological deodorizing system and at least first order absorption gas chamber system is connected gas gathering system successively.Reach and be not only only capable of the emission request for reaching each side, but also can realize the utilization of effective energy, processing procedure more cleans, is efficient.

Description

A kind of chemical-industrial emissions total system

Technical field

The present invention relates to emissions processes field, more specifically, being related to a kind of chemical-industrial emissions amount integrated treatment system System.

Background technology

With the development of the society, Chemical Manufacture brings various facilities for the mankind, so as to meet the growing life need of people Ask.But a large amount of pollutants can be produced among the process of Chemical Manufacture, if be discharged among environment, can cause water resource, Soil and air are polluted, and the production and living to the mankind bring great harm.If chemical pollution owner waste water, giving up Often there is sludge among water, and substantial amounts of exhaust gas is easily produced among current processing, these discharges seriously endanger people Class living environment and health and quality of life, therefore should handle before discharging.But among current three-protection design process There is causing that processing system cost is big, energy waste is serious among processing procedure due to the problem of processing mode is unreasonable, lead Cause the defects for the treatment of effeciency is low, and processing spends cost big.

The content of the invention

The goal of the invention of the present invention, which is to provide one kind, to carry out integrated treatment to producing pollutant among chemical process System, be not only only capable of the emission request for reaching each side, but also can realize the utilization of effective energy, processing procedure is more clear It is clean, efficient.

The present invention above-mentioned technical purpose technical scheme is that：

A kind of chemical-industrial emissions total system, including sewage disposal system, the sewage disposal system include being sequentially connected Grid, homogeneous pond, coagulative precipitation tank, hydrolysis acidification pool, anoxic pond, aerobic tank, secondary settling tank, aeration and biological fluidized reaction pond, Final deposition pool and Disinfection examination pond, further include, sludge storage pond, and the sludge in the sewage disposal system passes through at least one sludge Pump is connected with sludge storage pond；Sludge treating system, the sludge treating system include being connected with sludge storage pond dry Change system, the anhydration system are connected with sludge incinerating system, afterheat utilizing system and flue gas purification system, the flue gas in turn Cleaning system includes sequentially connected half dry type chilling extracting tower, bag filter, SCR reactors, scrubbing tower, heater；It is useless Gas processing system, the exhaust treatment system include the gas sampling to being produced in sewage disposal system and sludge treating system Gas collecting apparatus, with biological deodorizing system and at least first order absorption gas chamber system is connected the gas gathering system successively.

By using above-mentioned technical proposal, after sewage disposal, the water quality among wastewater from chemical industry passes through biological treatment Mode to solve high salt, the problem of difficult degradation, have treatment effeciency high, handle generation additional pollution it is few the advantages of, and Further it is passed into the sludge produced among wastewater from chemical industry among processing procedure among sludge treating system, is incinerated system Fully entered after burning among afterheat utilizing system, unnecessary flue gas is played and is made full use of, remaining flue gas enters Among deduster, flying dust is removed, and is entered among SCR reactors and scrubbing tower, makes flue-gas temperature dramatic decrease, avoids two The temperature section that Evil English synthesizes again, so as to achieve the purpose that to suppress bioxin regeneration, the processing of sludge has its main feature is that operation Elastic big, nuisance removal rate is high, and reactant consumption is less, can effectively control bioxin etc..And set last to useless Gas is collected gas collecting apparatus (foul smell predominantly to volatilize), the mode that biological treatment and packing material absorbing gas chamber are combined, More than 80% can be reached to the purification efficiency of exhaust gas.The processing system contact of above-mentioned three kinds of sewage, sludge and exhaust gas is close, system Overall co-ordination degree is high, and energy utilization rate and unnecessary energy high recycling rate, substantially reduce production cost, and handle effect Rate is high, processing procedure more cleans, and substantially reduces the pollution level to surrounding enviroment.

The further setting of the present invention is that the coagulative precipitation tank is connected with sludge storage pond by sludge lifting pump Connect, the secondary settling tank and final deposition pool are connected by sludge pump with sludge storage pond.The aerobic tank is connected with interior reflux pump, The interior reflux pump is connected to anoxic pond, and return duct is provided between the second sludge pump and aeration and biological the fluidized reaction pond Road.

By using above-mentioned technical proposal, a large amount of precipitations can be produced by dosing flocculation in coagulative precipitation tank, can excessively be led Cause system overload even to paralyse, therefore set sludge lifting pump connection coagulative precipitation tank and sludge to regulate and store in sewage disposal system Pond, precipitation pass through in sludge lifting pump to sludge storage pond.The first sludge pump is provided between sludge storage pond and secondary settling tank, The second sludge pump is provided between sludge storage pond and final deposition pool, excessive sludge, which is stayed in secondary settling tank and final deposition pool, to be caused Pressure in secondary settling tank and final deposition pool is excessive, or even overload causes systemic breakdown, therefore first is provided with sewage disposal system Sludge pump and the second sludge pump are connected to sludge storage pond, by excessive mud discharging to sludge storage pond.It is dirty by first Dredge pump and the second sludge pump control sludge reflux, can make activated sludge contain substantial amounts of microbial inoculant dirty to fresh activity In mud, the microorganism allowed in fresh activated sludge accelerates breeding, increases fresh activated sludge and removes harmful substance in sewage Ability, meanwhile, the large amount of organic for alloing to contain in activated sludge is reused.

The further setting of the present invention is that the anhydration system passes through sewage sludge storage and transport system and sludge incineration system System connection, the sewage sludge storage system keep in feed bin, style three-way distributor, the first conveying device and the second conveying including dewatered sludge Device；The style three-way distributor includes feed inlet, the first discharge port and the second discharge port, and the feed inlet is communicated in desiccation machine Outlet, first conveying device are located at the lower section of the first discharge port to receive and convey dewatered sludge to rotary kiln, and described the Feed bin, the desiccation are kept in receive and convey dewatered sludge to dewatered sludge in the lower section that two conveying devices are located at the second discharge port Sludge keeps in feed bin orlop and is additionally provided with the 3rd discharge port, and the 3rd discharge port is arranged with handling bag.

By using above-mentioned technical proposal, dewatered sludge keeps in feed bin and dewatered sludge can be kept in, threeway sub-material The sludge of desiccation machine desiccation can be distributed to rotary kiln or by the by setting for device as desired by the first conveying device Two conveying devices are transported to dewatered sludge and keep in feed bin, when rotary kiln overhauls or breaks down and can not work normally, The sludge of desiccation machine desiccation can be stored so that desiccation machine can normally work, and avoid the accumulation of wet mud from causing Environmental pollution, with normal operation, can improve the efficiency and safety of running by desiccation machine when rotary kiln device is repaired.It is dry The 3rd discharge port that the orlop that change sludge keeps in feed bin is set, which can be realized, to be packed the sludge in storehouse and is unloaded, and the 3rd goes out The handling bag that material mouth is arranged can wire up the directly handling of the dewatered sludge in feed bin, and it is dirty to reduce desiccation when handling Pollution of the dust that mud produces to environment, and bag can be directly loaded and unloaded into, reduce the cumbersome process of secondary package.

The further setting of the present invention is that the dewatered sludge, which is kept in, is provided with the 3rd conveying below the discharge port of feed bin Device, second conveying device are two-way conveying, and the positive conveying dewatered sludge of second conveying device is temporary to dewatered sludge Material stock storehouse, on the contrary reversely it is delivered to the first conveying device；Dewatered sludge in the temporary feed bin of 3rd conveying device transport is extremely Second conveying device, second conveying device convey dewatered sludge to the first conveying device, the first conveying device conveying Dewatered sludge further includes external dewatered sludge and receives feed bin, the external dewatered sludge receives the discharge port of feed bin to rotary kiln Lower section is provided with the 4th conveying device, and the 4th conveying device conveys external dewatered sludge to the second conveying device, and described the Two conveying devices convey dewatered sludge to the first conveying device, and first conveying device conveys dewatered sludge to rotary kiln.

By using above-mentioned technical proposal, the 3rd conveying device that dewatered sludge keeps in below the discharge port of feed bin can incite somebody to action Temporary dewatered sludge is again fed to the second conveying device, and the second conveying device can reversely convey and be delivered to dewatered sludge First conveying device, the dewatered sludge that dewatered sludge is kept in feed bin carry out burning disposal, and material is kept in dewatered sludge to realize Dewatered sludge in storehouse is handled, while can be remained unchanged when desiccation machine is overhauled and be carried out the work of rotary kiln, is protected Demonstrate,prove the efficiency that work carries out.External dewatered sludge, which receives feed bin, can also handle external dewatered sludge, and external desiccation is dirty Mud carry out again after reception storage the tenth drag conveyor and is delivered to the second chain scraper conveyor to realize conveying and dirty to desiccation Mud is handled, and processing operating mode is more diversified.

The further setting of the present invention is that the sludge incinerating system includes rotary kiln and the dual firing chamber set gradually, Gas pipeline is connected with the rotary kiln and dual firing chamber and is lighted by burner, and the feed hopper of the rotary kiln passes through spiral Dewatered sludge is sent into inside rotary kiln by conveyer；Discharge system, the discharge system include being arranged on the cigarette on dual firing chamber top Gas discharge line, the bottom ash outlet of dual firing chamber lower part, the smoke discharge tube road are connected with afterheat boiler system.

By using above-mentioned technical proposal, using twice combustion, in the relatively low oxygen content of Rotary Kiln Control, make material weak Primary combustion is carried out under reducing atmosphere, promotes decomposition of the nitrogen compound to N2；Fully burned in secondary combustion chamber, make to be harmful to The thorough after-flame of material, dioxin are destroyed completely in dual firing chamber by uniform and stable high temperature, it is ensured that dioxin is up to standard.Will burning By that among afterheat boiler system, unnecessary heat can be supplied to afterheat boiler system after flue gas discharge afterwards, protect The utilization rate of the energy is demonstrate,proved.

The further setting of the present invention is that afterheat utilizing system includes waste heat boiler, the entrance of the waste heat boiler It is connected with the flue of dual firing chamber；Water circulation system, including the fresh water that is passed into waste heat boiler and carry out hot friendship with flue gas Change, and then produce saturated vapor and hot water, steam to be passed among reuse means；Denitrification apparatus, passes through nozzle by ammonium hydroxide Spray among waste heat boiler；Wet type deacidifying device, the wet type deacidifying device are connected with the smoke discharge tube road of waste heat boiler； Discharger, is arranged on the sewage mouth for being used to discharge sewage of waste heat boiler and the cinder-discharging port of the dirty dirt of discharge.

By using above-mentioned technical proposal, by denitrification apparatus, the ammonium hydroxide that denitrification apparatus is passed through can be achieved with for flue gas SNCR denitration mode, must also be passed through in boiler water carry out heat exchange, heat exchange produce steam advance to recycling Recycled among device, unnecessary sewage is discharged by sewage mouth, and the dust produced among exchange process is just by unloading ash Mouth excludes, and then plays and increase economic efficiency, while mitigates the load of vent gas treatment, and further unnecessary flue gas leaves remaining Enter chilling extracting tower after heat boiler and carry out chilling and depickling.Wet type deacidifying device is downflow type spray column（Void tower）, high temperature Flue gas enters from top of tower, flue gas is evenly distributed in tower by distribution device, and a large amount of water and cigarette are sprayed at the top of spray column Gas directly contacts, and makes flue-gas temperature dramatic decrease, and from 550 DEG C of quenchings to less than 200 DEG C, flue gas is not more than 1S cooling time, The temperature section that bioxin synthesizes again can be avoided, so as to achieve the purpose that to suppress bioxin regeneration, reaches the standard of discharge.

The further setting of the present invention is that the half dry type chilling extracting tower includes furnace body, and the top of furnace body is in cylinder Shape is set, and the lower part of the furnace body is set in cone, further include for flue gas is passed through to furnace body preboiler, for will be close Envelope wind is passed through the air vapor heater of furnace body, the device compressed air system for device air to be drained into furnace body, is used for Fresh water is passed through the first water pipe of medicament, the chilling tower medicament delivery pump for medicament to be passed through to furnace body, is gone back in the medicament Including the alkaline matter for neutralizing acidic flue gas, the upper end of the furnace body is fixedly connected with the nozzle for being useful for spraying medicine, institute Nozzle is stated to eject mixture by medicament, fresh water, device air.

By using above-mentioned technical proposal, flue gas can be accelerated to the movement velocity of molecule in flue gas by preheating, so that The speed of smoke reaction, then the mixing by medicament and fresh water are improved, and is added with a medicament with the acidity in flue gas mutually The alkaline matter of phase neutralization reaction, so as to reduce the time of the processing to flue gas, while improves the efficiency to fume treatment, together When rapid drop in temperature made by chilling extracting tower, it is highly practical so as to play the generation again for preventing bioxin.Furnace body Top cylinder shape is set, and facilitates being passed through for flue gas, and and the flue gas of heat boiler outlet enters from top of tower, certain density Ca (OH) 2 alkaline slurries are sent into the lye nozzle on half-dried tower top under the conveying of medicament delivery pump, are atomized under pressure The particle of diameter μm level, with the coming into full contact with of flue gas, acidic components such as SO2, HCl, HF in flue gas etc. are neutralized removal. And lower cone shape is set, the collection after convenient processing to residue, the setting of taper improves the exclusion to residue, improves The speed of cleaning, it is highly practical.

The further setting of the present invention is that the bag filter further includes the injection apparatus for being arranged on outside, described The active charcoal material throwing device of injection apparatus and sodium acid carbonate material throwing device, the bag filter are internally provided with filter Bag, exhanst gas outlet is provided with above bag filter, cinder-discharging port is provided with below bag filter.

By using above-mentioned technical proposal, by the excessively small solid of activated carbon adsorption, then in bag filter Small solid and activated carbon be together by sock filtration in equipment, activated carbon can also adsorb flue gas on filter bag surface in solid Grain, sodium acid carbonate also can on filter bag surface, the reaction was continued, filter the flue gas that is passed through and improve flue gas mass.

The further setting of the present invention is that SCR reactors include ammonia-gas spraying device and reactor furnace body, the reactor furnace Body is in vertical setting, and the top of the reactor furnace body is equipped with smoke inlet and its bottom is equipped with exhanst gas outlet, the spray ammonia dress Put and smoke inlet at the top of furnace body is connected to by pipeline, the reactor furnace interior is equipped with water conservancy diversion grid, honeycomb screen successively Grid, acoustic wave ash ejector and catalyst layer, the water conservancy diversion grid are arranged on below smoke inlet, and the flow straightening grid is arranged on water conservancy diversion Below grid, for the catalyst layer between flow straightening grid and exhanst gas outlet, the acoustic wave ash ejector is located at catalyst layer Top.

By using above-mentioned technical proposal, ammonia and flue gas are sufficiently mixed by ammonia-gas spraying device in vitro in reactor furnace, kept away SCR reactions can not fully be carried out by having exempted from ammonia and flue gas mixing unit.Mixed gas after smoke inlet is passed through, by guiding device and Catalyst layer after fairing uniformly by lower section carries out SCR reactions, and the setting of acoustic wave ash ejector ensure that catalyst layer Surface will not lamination dust, ensure that catalyst layer and mixed gas come into full contact with.

The further setting of the present invention is that the biological treatment includes bacteria bed and is connected to behind bacteria bed Chemical spray tower, be provided with air inlet pipe and air outlet pipe on the bacteria bed, wrapped successively from top to bottom in the bacteria bed The first gas chamber, biologic packing material layer, chemical filler layer, the 3rd gas chamber and circulatory pool are included, the port of the air inlet pipe is arranged on Gap is left in three gas chambers and with circulatory pool, the air outlet pipe is arranged above the first gas chamber, is provided with the air inlet pipe point Water air filter, the circulatory pool are connected with cyclic water tank by first circulation pump, and the cyclic water tank is pumped by second circulation to be connected The spray tube for spray washing liquid is connected to, the spray tube is arranged in the first gas chamber, and the chemical spray tower includes connecting successively Connect and be provided with sour spray equipment, alkali spray equipment and sterilize spray equipment, the air outlet pipe is connected to sour spray equipment.

By using above-mentioned technical proposal, water-separating gas filter is provided with air inlet pipe, odor treatment device uses process In, reduced by the water-separating gas filter that is arranged in air inlet pipe by the water content in foul smell and containing Dust Capacity, it is not easy to by foul smell In steam bring into bacteria bed, while circulatory pool is connected with cyclic water tank by first circulation pump, and cyclic water tank has storage The effect of water, in the case of circulatory pool liquid level is elevated, can be taken in circulation fluid to cyclic water tank by first circulation pumping, subtracted The elevated speed of liquid level ponding in slow circulatory pool, it is excessive so that the problem of fluid-tight air inlet pipe to be less prone to pond internal water accumulation, will be into The port of tracheae is arranged at the bottom of bacteria bed, and in foul smell to during going upward to air outlet pipe, reverse contact has the 3rd gas Room, chemical filler layer, biologic packing material layer and the first gas chamber, can effectively remove harmful substance in most of foul smell, while in biology Chemical spray tower is connected with after filter bed, further purification processed foul smell from bacteria bed, is improved so as to reach at foul smell Manage purpose of the equipment to the removal ability of harmful substance in foul smell and foul smell.

Brief description of the drawings

Fig. 1 is sewage disposal system flow chart；

Fig. 2 is sludge treating system flow chart；

Fig. 3 is exhaust treatment system flow chart；

Fig. 4 is the system flow chart of desiccation machine；

Fig. 5 is the system flow chart of conveying device；

Fig. 6 is the system flow chart of temporary feed bin；

Fig. 7 is the flow chart of incineration system；

Fig. 8 is the flow chart of afterheat utilizing system；

Fig. 9 is the system flow chart of the depickling of half dry type chilling extracting tower；

Figure 10 is the dust pelletizing system flow chart of bag filter；

Figure 11 is the system flow chart of SCR reactions；

Figure 12 is the device structure schematic diagram of exhaust treatment system.

In figure, the 1, first output channel；2nd, the first input channel；3rd, the second output channel；4th, the second input channel；

1a, desiccation machine；10b, wet mud conveying device；201b, the first conveyer；202b, second conveyor；It is 203b, the 3rd defeated Send machine；204b, the 4th conveyer；The conveyer of 256b, the 5th and the 6th；207b, the 7th conveyer；289b, the 8th and the 9th is defeated Send machine；210b, the tenth conveyer；3b, buffer bin；4b, style three-way distributor；41b, feed inlet；42b, the first discharge port；43b、 Second discharge port；5a, rotary kiln；6b, dewatered sludge keep in feed bin；61b, handling bag；62b, hydraulic station；71b, the first deodorization dress Put；72b, the second deodorization device；8b, receive feed bin；

1a, desiccation machine；11c, screw conveyor；5a, rotary kiln；21c, rotary kiln feed hopper；3a, dual firing chamber；31c, urgent row Put chimney；32c, air accumulator；33c, bottom ash outlet；4c, natural gas pressure regulating station；5c, primary air fan；51c, overfire air fan； 52c, air-introduced machine；9a, grey car；8c, burner；9c, mucking machine device；91c, watering device；10c, afterheat boiler system；

1d, waste heat boiler；11d, smoke discharge tube road；12d, water inlet；13d, sewage draining exit；14d, cinder-discharging port；2a, dual firing chamber； 3d, fresh water conveying device；4d, reuse means；41d, mud drying device；42d, combustion air preheating device；43d, cigarette Gas reheat machine；44d, heat and power supply device；4a, nozzle；51d, ammonium hydroxide surge tank；52d, blowing plant；5a, air steam Vapour heater；6d, wet type deacidifying device；7d, blow down cooler；71d, low-pressure steam lime set device；6a, precipitation cooling tank； 73d, manhole；8d, single-screw dust unloadnig apparatus；81d, unloading valve；82d, cloth bag；83d, watering device；9a, grey car；

1e, furnace body；2e, preboiler；5a, air vapor heater；4e, device compressed air system；5e, the first water pipe；6e、 Chilling tower medicament delivery pump；4a, nozzle；8e, integral denitration generator；6a, precipitation cooling tank；10e, the second water pipe；7a, text Reactor in mound；8a, bag filter；13e, double Pneumatic dump valves；14e, instrument compressed air system；15e, steering tube； 16e, end cap；17e, filter screen；9a, grey car；

1f, upper box；2f, middle case；3f, ash bucket；4f, filter bag；5f, activated carbon batch can；6f, sodium acid carbonate batch can；7a, Wen Qiu In reactor；8f, injection tube；9f, impulse electromagnetic valve；10f, poppet；11f, injector；12f, hot wind blast furnace；13f, electricity Heating unit；14f, cinder-discharging port；15f, air vapor heater；16f, metering screw conveyer；17f, babinet locellus；18f, spray Injection device；19f, gas ejecting system；8a, bag filter；21f, spark arrester；22f, interlayer；23f, chilling extracting tower；9th, grey car； 25f, bypass flue；26f, gas-distributing cylinder；27f, scr catalytic reactor；28f, compressed air system；

1g, ammonia-spraying grid；2g, ammonia sky mixer；3g, reactor furnace body；4g, water conservancy diversion grid；5g, ammonia-gas spraying device；6g, honeycomb screen Grid；7g, catalyst layer；8g, acoustic wave ash ejector；9g, smoke inlet；10g, exhanst gas outlet；The flue gas of 11g, nitrogen-containing oxide； 12g, ammonia；13g, compressed air；Flue gas after 14g, denitration；15g, bypass flue gas；16g, flow deflector；17g, stent；18g, pass through Wear groove；

1h, air inlet pipe；11h, water-separating gas filter；12h, wind turbine；2h, bacteria bed；21h, demisting layer；211h, waveform blade； 212h, undulating path；22h, the first gas chamber；23h, biologic packing material layer；24h, the second gas chamber；25h, chemical filler layer；26h, hold Supporting piece；27h, the 3rd gas chamber；3h, air outlet pipe；31h, go out Gas chimney；32h, sample tap；41h, spray apertures；42h, circulatory pool； 43h, cyclic water tank；44h, second circulation pump；45h, circulating water pipe；46h, spray tube；47h, first circulation pump；5h, air pressure inspection Survey meter；61h, treatment tank；62h, drainpipe；63h, draining pump；7h, chemical spray tower；71h, sour spray equipment；72h, alkali Spray equipment；73h, disinfection spray equipment.

Embodiment

The present invention is described in further detail below in conjunction with attached drawing.

Referring to Fig. 1, include interlaced fine fack for the sewage disposal system among the present invention, including grid, grid And coarse rack, homogeneous pond is provided with behind grid, and chain traction formula oil skimming machine, the towed oil skimming are additionally provided with homogeneous pond Machine is connected with contaminated-oil basin；Homogeneous pond is connected with accident regulating reservoir by circulating line, and homogeneous pond forms one with accident regulating reservoir The circulatory system；Homogeneous pond is also associated with coagulative precipitation tank；Hydrolysis acidification pool is connected with anoxic pond and aerobic tank, and aerobic tank bottom is set Porous tubular aerator is equipped with, the device for adding sodium acid carbonate is provided with aerobic tank, aerobic tank is connected with secondary settling tank, secondary settling tank It is connected with aeration and biological fluidized reaction pond；Aeration and biological fluidized reaction pond is connected with final deposition pool；Final deposition pool is connected with Disinfection examination Pond, Disinfection examination pond are provided with the device of addition disinfection agent of chlorine dioxide；Disinfection examination pond is connected with draining pump house, and detection is up to standard Sewage sea is drained into by draining pump house.

Sewage disposal system has further included sludge storage pond, and being provided with sludge between sludge storage pond and coagulative precipitation tank carries Pump is risen, the first sludge pump is provided between sludge storage pond and secondary settling tank, second is provided between sludge storage pond and final deposition pool Sludge pump, the interior sludge produced of secondary settling tank are partly refluxed to anoxic pond by the first sludge pump, and the sludge produced in final deposition pool leads to Cross the second sludge pump and be back to aeration and biological fluidized reaction pond.Aerobic tank is connected with interior reflux pump, and interior reflux pump is communicated to anoxic In pond.Final deposition pool is also connected with interior reflux pump, and interior reflux pump is communicated in aeration and biological fluidized reaction pond.Sludge storage pond connects There is sludge centrifugal concentrating dewaterer, the sludge after centrifugal dehydration is burned.

When sewage disposal system works, sewage with pressure enters homogeneous pond, and the fine fack in homogeneous pond excludes cloth, paper scrap etc. Impurity substances, the greasy dirt in subsequent sewage are separated by chain traction formula oil skimming machine with sewage, and greasy dirt enters contaminated-oil basin, and sewage enters Physical reaction occurs for coagulative precipitation tank, PAM in suspended matter and coagulative precipitation tank and PAC in sewage, and PAC mainly plays coagulation effect Fruit, and PAM plays crane span structure effect, PAC is bridged small colloid and ion, forms tiny particle；In the effect of PAM Lower fine particle further flocculates, and makes the specific good settleability of particle.Impurity not soluble in water is formed after coagulation-flocculation to be formed Bulky grain solid settles to form sludge, and sludge enters sludge storage pond by sludge lifting pump, and the remainder in sewage enters Biochemical reaction occurs for hydrolysis acidification pool, the anaerobic bacteria flora in sewage and hydrolysis acidification pool, the organic matter quilt of non-solubilised state in sewage Retain and be progressively changed into dissolved organic matter, some be difficult to biodegradable macromolecular substances be then converted into be easy to degrade it is small Molecular substance such as organic acid etc.；Subsequent sewage enters anoxic pond and aerobic tank, and the harmful substance in sewage is by activated sludge Microorganism adsorption absorbs；Remaining sewage enters secondary settling tank, and the residual active sludge flocculation in sewage, activated sludge part passes through First sludge pump is back to anoxic pond, and excessively manifold activated sludge then enters sludge storage pond by the first sludge pump；Then After sewage enters the microorganism adsorption absorption that aeration and biological fluidized reaction pond is carried out in secondary activated sludge, carried out into final deposition pool Finally settle, the activated sludge part in sewage is back to aeration and biological fluidized reaction pond, excessive part by the second sludge pump Activated sludge sludge storage pond is then entered by the second sludge pump；Sewage after the completion of biochemical treatment enters Disinfection examination pond, React with sodium hypochlorite, sodium hypochlorite kills most microorganism in sewage, while bleaching effluent, after detection Sewage up to standard passes through draining pump house discharge into sea.Activated sludge in sludge storage pond will pass through sludge centrifugation to a certain extent Thickening machine, the sludge after centrifugal dehydration are burned.

This sewage disposal system is as follows to the disposal ability and effect of sewage：

Table 1：The disposal ability and effect table of sewage disposal system influent quality and effluent quality

As known from Table 1, sewage disposal system has reached 88.0% to the clearance rate of the COD in averagely every liter of sewage, to the clear of BOD5 Except rate has reached 90.0%, 92.5% has been reached to the clearance rate of SS, 58.3% has been reached to the clearance rate of NH3-N, the removing to TN Rate has reached 50.0%, has reached 87.5% to the clearance rate of TP, has reached 50.0% to the clearance rate of petroleum-type, to the clear of colourity Except rate has reached 84.0%.Effluent quality meets country《Integrated wastewater discharge standard》（GB8978-1996）In secondary standard, Sea can be discharged into addition.

Reference Fig. 2, is the system diagram of sludge treating system, is the system diagram of sludge treating system, for sludge to be regulated and stored Sludge after the transport of pond is handled, including sequentially connected anhydration system, incineration system, afterheat utilizing system and gas cleaning System.

Anhydration system includes sequentially connected wet mud and receives storehouse, sludge pump and sludge drier, and sludge drier uses Thin layer desiccation machine.

Incineration system includes sequentially connected conveyer, rotary kiln and dual firing chamber, and conveyer uses scraper conveyor, and two Fire ceiling portion and be equipped with anxious smoke evacuation chimney.

Carrier gas scrubbing tower is connected between sludge drier and the rotary kiln.

Afterheat utilizing system includes waste heat boiler, and waste heat boiler is communicated with first circulation steam channel with sludge drier, First circulation steam channel includes the first output channel 1 and the first input channel 2.

Flue gas purification system include sequentially connected chilling tower, bag filter, SCR reactors, scrubbing tower, heater, Air-introduced machine and chimney, chilling tower use downflow type spray column.

Waste heat boiler is communicated with second circulation steam channel with heater, and it is logical that second circulation steam channel includes the second output Road 32a and the second input channel 4.

Cyclone dust collectors are additionally provided between afterheat utilizing system and flue gas purification system.Waste heat boiler, cyclone dust collectors, The flying dust outlet of chilling tower and bag filter is designed with dust bucket.

When sludge drying and incineration system are run, the wet mud shipped from outside is first positioned over wet mud reception storehouse, then leads to Cross sludge pump and be delivered to sludge drier.Sludge through sludge drier desiccation is sent into rotary kiln incineration by conveyer, and sludge is done Dry machine can produce certain carrier gas in desiccation wet mud, and carrier gas is also arranged the exhaust gas of generation by the purification of carrier gas scrubbing tower Enter rotary kiln to be burned, burn and produce flue gas, dual firing chamber is entered by the kiln body afterbody of rotary kiln, the combustible component in flue gas by into One step is burned and decomposed.Air is also passed through in rotary kiln and dual firing chamber and natural gas progress is combustion-supporting, and it is more abundant to be allowed to burning.

When urgent blowing out condition occurs, such as have a power failure or cut off the water, the anxious smoke evacuation chimney in dual firing chamber can be opened, flue gas is by two combustions Ceiling portion is discharged in air.

Under normal circumstances, waste heat boiler is entered from the flue gas of dual firing chamber's discharge, using the high temperature of flue gas, waste heat boiler will be logical The water entered is used for producing steam, passes through the first output channel 11a of first circulation steam channel and second circulation steam channel Second output channel 32a delivers a vapor to sludge drier and heater carries out the utilization of heat, and logical by the first input The condensate of cooling is sent back to waste heat boiler and carries out heating utilization by road 21b and the second input channel 42b again, while a part is heavy The flying dust to form sediment is expelled to dust bucket.

Flue gas is introduced into cyclone dust collectors after leaving waste heat boiler, and part that can be removed flying dust, is discharged into dust bucket, prevents flying dust Accumulated in flue, subsequently enter chilling tower, high-temperature flue gas enters from chilling tower napex, makes flue gas equably by distribution device It is distributed in tower, chilling top of tower and midsole portion spray into water and buck respectively, are directly contacted with flue gas under making flue-gas temperature rapidly Drop, avoids the temperature section that bioxin synthesizes again, so as to achieve the purpose that to suppress bioxin regeneration.Process of the flue gas in chilling In, except cooling also has the effect of washing, dedusting, depickling, a part of flying dust of removing is expelled to dust bucket from chilling tower bottom.

Leave the flue gas after chilling tower and enter bag filter, bag filter arranges flue gas after further discharging flying dust Enter SCR reactors, the flue gas utilization SCR catalyst in SCR reactors carries out denitration, further to remove the nitrogen oxygen in flue gas Purified flue gas, is then discharged into scrubbing tower by compound.

Flue gas enters scrubbing tower to sour gas wet-treating, in order to ensure the washing effect of scrubbing tower lye, to alkali The pH value of liquid is realized and detected and controlled automatically.Sour gas therein is removed by the washing to flue gas.Come out from scrubbing tower Waste water enters type washing sink, squeezes into scrubbing tower, is recycled again after adjusting pH value.

Then flue gas is passed through heater to be heated, steam of the heat source from waste heat boiler of heater, after heating Flue gas by air-introduced machine from smoke stack emission to air in.

Attached drawing 4,5 and 6 is refer to, is had below to store from sludge storage pond to sludge and being delivered to sludge treating system and do The elaboration of body, including desiccation machine 1a, rotary kiln 5a, further include dewatered sludge and keep in feed bin 6b, style three-way distributor 4b, the first conveying Device and the second conveying device；The style three-way distributor 4b includes feed inlet 41b, the first discharge port 42b and the second discharge port 43b, the feed inlet 41b are communicated in the outlet of desiccation machine 1a, and first conveying device is located at the lower section of the first discharge port 42b To receive and convey dewatered sludge to rotary kiln 5a, second conveying device is located at the lower section of the second discharge port 43b to receive And convey dewatered sludge to dewatered sludge and keep in feed bin 6b.

With reference to Figures 5 and 6, desiccation machine 1a is provided with two, and two desiccation machine 1a receive the wet of wet mud conveying device 10b Sludge simultaneously carries out drying and other treatment, and the first deodorization device 71b is connected with desiccation machine 1a, and the first deodorization device 71b carries out foul smell Processing is pumped, reduces the pollution of the foul smell produced in drying process.

The first conveyer 201b is connected between desiccation machine 1a and buffer bin 3b, the outlet of two desiccation machine 1a connects jointly It is connected to the first conveyer 201b and is connected to buffer bin 3b to cache dewatered sludge.

The outlet of buffer bin 3b is connected with the feed inlet 41b of style three-way distributor 4b, and it is defeated that the first conveying device includes the 7th Machine 207b and the 8th and the 9th conveyer 289b are sent, the first discharge port 42b of style three-way distributor 4b is connected to the 7th conveyer 207b, it is preferably bucket type that the 7th conveyer 207b, which is connected to the conveyer 289b of the 8th and the 9th conveyer 289b, the 8th and the 9th, Conveyer, the dewatered sludge of the 7th conveyer 207b horizontal feeds is lifted to convey and pass through the 8th and the 9th conveyer 289b It is transported in rotary kiln 5a.

With reference to Fig. 4, the second conveying device includes second conveyor 202b and the 3rd conveyer 203b, style three-way distributor 4b's Second discharge port 43b is connected with second conveyor 202b, and second conveyor 202b is two-way conveying and is chain scraper conveyor, and second Seal closure is installed to prevent the pollution of sludge course of conveying on the outside of conveyer 202b, second conveyor 202b connections the 3rd are defeated Send machine 203b that the dewatered sludge received is transported in the 3rd conveyer 203b, the 3rd conveyer 203b is preferably bucket type conveying Dewatered sludge, is lifted the silo roof for being delivered to dewatered sludge and keeping in feed bin 6b by machine, and the silo roof that dewatered sludge keeps in feed bin 6b is equipped with 4th conveyer 204b.

With reference to Fig. 6, dewatered sludge apparatus for temporary storage is provided with two, and the 4th conveyer 204b is two-way conveying, and second discharges The dewatered sludge that mouth 43b comes out is transported to the 3rd conveyer 203b through second conveyor 202b forward directions, can be forward and reverse dirty by desiccation Mud is respectively delivered to two dewatered sludges and keeps in feed bin 6b.

Dewatered sludge keeps in feed bin 6b orlops and is provided with the 5th and the 6th conveyer 256b, and dewatered sludge keeps in feed bin 6b storehouses Bottom is additionally provided with discharge port and hydraulic pressure balladeur train, and hydraulic pressure balladeur train is controlled by hydraulic station 62b and opened and closed, when desiccation machine 1a does not work, Hydraulic station 62b control hydraulic pressure balladeur trains open discharge port, dewatered sludge keep in dewatered sludge in feed bin 6b from discharge port spread out of into Enter in the 5th and the 6th conveyer 256b, the 5th and the 6th conveyer 256b is Z-type drag conveyor, by dewatered sludge by orlop It is delivered up to second conveyor 202b, second conveyor 202b reversely conveys dewatered sludge and passes through again to the 7th conveyer 207b First conveying device is delivered directly to rotary kiln 5a and carries out burning disposal.

With reference to Fig. 4, external dewatered sludge, which receives feed bin 8b, can receive the dewatered sludge that exterior transport comes, and receive feed bin 8b Orlop be connected with the tenth conveyer 210b for being delivered to second conveyor 202b, second conveyor 202b is reversely delivered to the 7th Conveyer 207b, external dewatered sludge also passes through the 7th drag conveyor and the 8th and the 9th conveyer 289b is conveyed into rotary kiln 5a carries out burning operation.

It is arranged on reference to Fig. 4 and 6, the first deodorization device 71b on desiccation machine 1a, the second deodorization device 72b is arranged on desiccation Sludge keeps in the silo roof of feed bin 6b, respectively to wet mud and storage dewatered sludge device carry out deodorizing process with ensure conveying and Odor pollution will not be produced during storage.

With reference to Fig. 6, dewatered sludge keeps in feed bin 6b and uses discharge port connection handling bag 61b to replace vehicle-mounted discharging, and unloads The handling bag 61b that material mouth closely fastens dewatered sludge can be loaded and unloaded caused by dust be received in handling bag 61b, avoid Pollution of the dust to environment, handling bag 61b can directly carry out the packaging to dewatered sludge, and filling directly to be sealed up for safekeeping, Reduce the cumbersome of secondary encapsulation.

Storage and delivery system can be divided into following working method：

When desiccation machine 1a is worked normally, the wet mud of wet mud conveying device 10b enters desiccation machine 1a with drying and other treatment, desiccation The first drag conveyor conveying dewatered sludge of machine 1a connections is defeated after dewatered sludge is cached to buffer bin 3b, buffer bin 3b Send to style three-way distributor 4b, it is two kinds of processing modes that style three-way distributor 4b, which is divided to,：

1st, when rotary kiln 5a is also worked normally, style three-way distributor 4b opens the first discharge port 42b and conveys dewatered sludge to the 7th Conveyer 207b, it is upward that the 7th conveyer 207b is connected with the conveyer 289b of the 8th and the 9th conveyer 289b, the 8th and the 9th Lifting is connected to rotary kiln 5a to convey dewatered sludge burning disposal into rotary kiln 5a.

2nd, when rotary kiln 5a failures or break-off, the second discharge port 43b of style three-way distributor 4b opens conveying desiccation Sludge is to second conveyor 202b, then the storehouse that dewatered sludge keeps in feed bin 6b is reached after the 3rd conveyer 203b lifting conveyings Top, the 4th conveyer 204b of silo roof connects the 3rd conveyer 203b and dewatered sludge keeps in feed bin 6b, dewatered sludge convey into Enter dewatered sludge and keep in feed bin 6b to be kept in.

When the dewatered sludge that dewatered sludge is kept in feed bin 6b is excessive or needs to be packaged, handling bag 61b is connected Discharge port is connected on, operation hydraulic station 62b control hydraulic pressure balladeur trains open discharge port, and dewatered sludge is drawn off into handling bag from discharge port In 61b, handling bag 61b can directly seal dewatered sludge up for safekeeping.

When rotary kiln 5a is normal and desiccation machine 1a failures when causing break-off, rotary kiln 5a burn needed for desiccation it is dirty Mud can have following two processing modes：

1st, dewatered sludge keeps in the dewatered sludge of feed bin 6b and the 5th and the 6th conveyer 256b of orlop is delivered into from discharge port In, dewatered sludge is delivered up to second conveyor 202b by the Z-type drag conveyor of the 5th and the 6th plate by orlop, and second is defeated Send the reverse conveyings of machine 202b to be connected to the 7th drag conveyor to be burned until delivering into rotary kiln 5a.

2nd, external sludge, which receives, is also stored with dewatered sludge inside feed bin 8b, receive the tenth conveyer of the orlop of feed bin 8b The dewatered sludge received in feed bin 8b is transported to second conveyor 202b by 210b, and second conveyor 202b reversely conveys desiccation dirt Mud until rotary kiln 5a is burned, realizes the processing of external dewatered sludge to the 7th conveyer 207b.

In desiccation machine 1a or rotary kiln 5a cisco unity malfunctions, sewage sludge storage and transport system can according to circumstances into The different treatment measures of row, keep in feed bin 6b using dewatered sludge and are kept in and handled.

Attached drawing 7 is refer to, below to do specific elaboration to sludge incinerating system, including sequentially connected feed system, Incineration system, discharge system.

Feed system is further illustrated：Feed system is to convey the sludge of desiccation by flat spin Machine 11c is conveyed, and the operation principle of screw conveyor 11c is that the operation principle of rotating screw conveyer 11c is rotating spiral shell Material is elapsed and carries out screw conveyor 11c conveyings by vane piece.When material is added in fixed trough, due to the weight of material Power and its frictional force effect between trough, the material for being deposited in trough lower part are not rotated with conveyor screw, and only in rotating spiral shell Vane piece promotes lower forward movement, as the screw rod of non-rotary nut along rotation makees translational motion, reaches conveying thing The purpose of material.

Incineration system is described further：Incineration system includes the rotary kiln 5a and dual firing chamber 3a being sequentially connected, and returns The kiln cylinder body of rotary kiln 5a is rolled using the steel plate of obstructed thickness and formed, and to reach the structural strength for strengthening kiln cylinder body, and is being burnt Rotary kiln 5a can realize the axial rotation centered on axis among the process of burning.The kilneye part of rotary kiln 5a is provided with one Rotary kiln 5a feed hoppers, the sludge after desiccation is transported among feed hopper by the screw conveyor 11c of feed system, and is fed The kiln of rotary kiln 5a is also transmitted between bucket and rotary kiln 5a by the screw conveyor 11c sludge that will go into feed hopper Mouth is internal.

A burner 8c is provided with above the sludge inlet of rotary kiln 5a, the outside of burner 8c is connected with Gas Pipe Road, natural gas pressure regulating station 4c convey natural gas to gas pipeline, enter at burner 8c and can be achieved with by igniting to natural The burning of gas, and rotary kiln 5a slopes down to 2 ° ~ 8 ° along kiln hood to dual firing chamber 3a directions, it is preferred that in the present embodiment 3 ° are selected in the middle, and then can realize the material inside preferably mixing and heating rotary kiln 5a, are more favorable for material in burning After be transported among dual firing chamber 3a.

Multiple ventilation holes are arranged side by side above rotary kiln 5a, multiple ventilation holes are connected with primary air fan 5c, also wrap An air-introduced machine 52c is included, selection is provided with three ventilation holes among the present embodiment, and three ventilation holes are arranged side by side, into And play and sufficient air circulation is had among the combustion process inside rotary kiln 5a, make burning inside rotary kiln 5a more Add the stabilization for fully, maintaining to burn and suitable temperature.

After precipitation is produced, a grey car 7c is provided with below the kilneye of rotary kiln 5a, will can be delivered to back Sludge at 5a mouthfuls of rotary kiln is collected.

Also be both provided with burner 8c in the upper and lower part of dual firing chamber 3a, burner 8c by natural gas pressure regulating station 4c come Realize the conveying of natural gas, be both provided with burner 8c in the upper and lower part of dual firing chamber 3a, and then uncombusted exhaust gas is existed Under the hot environment of 3a1100 DEG C of dual firing chamber, by the configuration of upper and lower burner 8c, localized hyperthermia is avoided the occurrence of, makes burning steady Fixed, easily controllable, the residence time more than 2S, avoids dioxin from being regenerated in the range of 250 DEG C -450 DEG C.

Circumferentially direction is provided with multiple ventilation holes, multiple ventilation holes and overfire air fan 51c on the side wall of dual firing chamber 3a It is connected, is similarly provided with an air-introduced machine 52c, and then can there can be sufficient air to supply in side wall, dual firing chamber can be made 3a incineration temperature control DEG C, control burner hearth inside produce localized hyperthermia, when incineration temperature is not high, the NO in waste_XMeeting Generate N₂, to reduce NO_XGeneration.

And the other end of overfire air fan 51c is connected with desiccation machine 1a, since desiccation machine 1a is in the mistake of the sludge of desiccation Cheng Dangzhong can produce substantial amounts of foul smell, these foul smell can be transported among dual firing chamber 3a and be used as combustion air, so as to add The efficiency of combustion of dual firing chamber 3a.

Dump chimney a 31c, the dump chimney 31c is provided with the top of dual firing chamber 3a and is connected with a gas storage Tank 32c.When improper heated condition occurs in the inside of dual firing chamber 3a, inside is likely to occur heating insufficient interior so as to cause Portion's pernicious gas burning is insufficient, closes smoke discharge tube road with regard to that can play at this time, avoids pernicious gas from entering next process, Further to open dump chimney 31c, dump chimney 31c is also associated with an air accumulator 32c, and then will be untreated Qualified gas, which is placed among air accumulator 32c, to be retained.

Further, the combustion pipe of burner 8cs of the air accumulator 32c with supplying dual firing chamber 3a is connected, due to dual firing chamber The underproof gas of burning existing for inside 3a, if but these gases rekindled, the process of burning and combustion It is all undesirable to burn qualification rate, therefore the gas among air accumulator 32c is passed into two gas pipelines lighted, as natural gas Combustion-supporting gas, can play the effect for saving fuel increase service efficiency.

Specific description is done to discharge system below, discharge system has gone out below the kilneye of rotary kiln 5a the grey car set Outside 7c, bottom ash outlet 33c is also provided with the bottom of dual firing chamber 3a, bottom ash outlet 33c is passed into a mucking machine dress Put among 9c, mucking machine device 9c is closed, is being internally provided with conveyer belt, is being transmitted to lime-ash by conveyer belt and slags tap Mouthful, grey car 7c is provided with below slag notch, and then realize the collection to lime-ash.It is additionally provided with and spills in mucking machine device 9c Water installations 91c, since the dust of dual firing chamber 3a discharges is larger, so being internally provided with watering device 91c, can play and close Watering dust suppression is carried out under environment, avoid dust more and caused by environmental pollution.

Attached drawing 8 is refer to, below to be specific elaboration, including waste heat boiler 1d to afterheat utilizing system, in waste heat pot The entrance of stove 1d is connected with the flue of dual firing chamber 2a, dual firing chamber 2a by burn to DEG C flue gas be delivered to waste heat boiler 1d's Inside, refractory material is embedded with the flue of dual firing chamber 2a, by be provided with refractory material play can for dual firing chamber 2a with The service life of the pipeline of waste heat boiler 1d connections is longer.

Water inlet 12d is additionally provided with waste heat boiler 1d, is passed through water inlet 12d newly by fresh water conveying device 3d Fresh water, fresh water change face by heat with flue gas and carry out heat exchange, and temperature gradually rises, and eventually become steam and are passed into recycling dress Put and recycled among 4d, reuse means 4d includes mud drying device 41d, combustion air preheating device 42d, flue gas again One or more in thermal 43d, heat and power supply device 44d.Wherein, mud drying device 41d, which can be played, utilizes waste heat Desiccation is carried out for the sludge among sludge treating system without desiccation, combustion air preheating device 42d can be played to combustion-supporting sky The preheating of gas preheating device 42d, the household electricity of resident can be supplied by being communicated with heat and power supply device 44d, be played A variety of conversion regimes of waste heat energy, are not only only capable of being applied among Treatment of Sludge, but also can supply power to resident and work as In.

And two nozzle 4a are provided with the side wall of dual firing chamber 2a, each nozzle 4a is respectively connected with ammonium hydroxide surge tank 51d, blowing plant 52d and air vapor heater 5a, the ammonium hydroxide that concentration is % ~ % is placed with ammonium hydroxide surge tank 51d, Preferably %, can play more preferably denitration effect.And blowing plant 52d is equipped with, playing can give ammonium hydroxide one penetrating Speed, ammonium hydroxide and flue gas is quickly sufficiently contacted, be provided with air vapor heater 5a, and then play air vapor Heater 5a can avoid ammonia temperature too low and do not filled with smoke reaction to the ammonium hydroxide in nozzle 4a and compressed air preheating heating Point, also play the ammonium hydroxide for avoiding temperature-difference larger at the same time and cause damages to the thermal energy inside flue gas.Above-mentioned denitration mode As SNCR denitration mode, has the device operating cost low, does not interfere with the generated energy of original afterheat generating system, both full The foot environmental requirement of denitration, and there is very big economic benefit, investment reduction cost.

Unnecessary flue gas is connected by a smoke discharge tube road 11d with wet type deacidifying device 6d, wet type deacidifying device 6d is chilling extracting tower, and high-temperature flue gas enters from top of tower, flue gas is evenly distributed in tower by distribution device, sprays Top of tower sprays into a large amount of water and is directly contacted with flue gas, makes flue-gas temperature dramatic decrease, is quenched from 550 DEG C to less than 200 DEG C, flue gas Cooling time, little 1 S, can avoid the temperature section that bioxin synthesizes again, so that achieve the purpose that to suppress bioxin regeneration, Reach the standard of discharge.

The bottom of waste heat boiler 1d is provided with cinder-discharging port 14d, single-screw dust unloadnig apparatus are provided with below cinder-discharging port 14d 8d, further includes one and unloads grey car 84d, described to unload between grey car 84d and single-screw dust unloadnig apparatus 8d by a pipe with unloading valve 81d Road is connected, due to can also produce substantial amounts of dust among combustion process, therefore can be real by being provided with single-screw dust unloadnig apparatus 8d Existing orderly the entering of dust is unloaded inside grey car 84d, and can be discharged dust by unloading grey car 84d realizations, and set Unloading valve 81d can be played to be opened for concentration and unloads ash when necessary.

And the sewage produced among waste heat is discharged by sewage mouth, it is connected with a blowdown with sewage mouth and cools down Low-pressure steam lime set is passed through in device 7d, blow down cooler 7d, low-pressure steam lime set is defeated by a low-pressure steam lime set device 71d Go out, the chemical reaction rate among sewage can be reduced by the effect of cooler, prevent sewage from acutely anti-occurs with pipeline Should, the sewage after reaction is passed among precipitation cooling tank 6a, can be more convenient filter, and in blow down cooler A manhole 73d is also provided among 7d, can conveniently repair the observation of people.

As shown in figure 9, it is following to be specific elaboration, including furnace body 1e to half dry type chilling extracting tower, further include and be used for Flue gas is passed through the preboiler 2e of furnace body 1e, the air vapor heater 5a for sealing air to be passed through to furnace body 1e, for inciting somebody to action Device air is drained into the device compressed air system 4e of furnace body 1e, the first water pipe 5e for fresh water to be passed through to medicament, uses The basic species for neutralizing acidic flue gas are further included in the chilling tower medicament delivery pump 6e that medicament is passed through to furnace body 1e, medicament Matter, the upper end of furnace body 1e are fixedly connected with the nozzle 4a for being useful for spraying medicine, and nozzle 4a passes through medicament, fresh water, device air Mixture is ejected.

The cylindrical setting in top of furnace body 1e, the lower part of furnace body 1e are set in cone, and the top of furnace body 1e is with It is attached between portion by the way of welding.Antirust coat is also coated with the surface of furnace body 1e, in the present embodiment, antirust coat is Paint, and etch-proof coating is also coated with furnace body 1e.

Preboiler 2e is connected with furnace body 1e, for flue gas be passed through to the upper end of furnace body 1e, air vapor heater Sealing air is passed through furnace body 1e by 5a, for giving nozzle 4a to apply pressure, improves jeting effect, air compression system is by device air Furnace body 1e is passed through, with air vapor heater 5a with the use of the jeting effect improved to nozzle 4a, the first water pipe 5e and chilling Tower medicament delivery pump 6e connect, after medicament is mixed with fresh water, then be passed through in furnace body 1e, and by nozzle 4a into Row injection, the second water pipe 10e are connected with integral denitration generator 8e, and fresh water is passed through integral denitration generator 8e Denitration process is carried out, is drained into the water of the denitration after by processing in precipitation cooling tank 6a, and oxidant is not soluble in water, because This is collected by venturi reactor 7a, furnace body 1e handled after flue gas, by carrying out dedusting without deduster, then lead to Cross double acting gas unloading valve to be discharged, transported by grey car.Medicament in the present embodiment, add alkaline matter be used for Acidic materials in flue gas carry out neutralization reaction, and alkaline matter can be basic anhydride NaO, Ba (OH)₂、NaOH、KOH、Cu (OH)₂, staff can be allocated according to actual conditions.

Because furnace body 1e is liquid slurry, and from bottom of towe unload for solid-state flying dust, therefore claim " half-dried tower ".Pass through half-dried tower Interior spray equipment spray lye, flue gas cool to about 160 DEG C of outflows for 500 DEG C or so from input end；At the same time in lye and flue gas Acid ingredient reacts, and reduces its concentration.The flue gas of heat boiler outlet enters from top of tower, certain density NaOH alkaline slurries The lye nozzle 4a on half-dried tower top is sent under the conveying of medicament delivery pump, is atomized into of diameter μm level under pressure Grain, with the coming into full contact with of flue gas, acidic components such as SO, HCl, HF in flue gas etc. are neutralized removal.This is flue gas at this Burn the first time purification in line.Purified flue gas is flowed out toward bag filter 8a, in tower through tower lower part cone bucket discharge pipe By separated flying dust also through falling on double Pneumatic dump valve 13e under cone bucket, lime-ash bag is discharged into.The structure of this half-dried tower can organize cigarette Gas in half-dried tower≤the 1s times cool to 200 DEG C rapidly from 500 DEG C, effectively avoid bioxin regeneration temperature section, avoid The regeneration of bioxin.

Referring to the drawings 10, bag filter is further described below, activated carbon and sodium acid carbonate pass through LS type meters Activated carbon and sodium acid carbonate are transported to injector 11f by amount screw conveyor 16f, and venturi has been ejected into by injector 11f In reactor 7a, the flue gas with being exported in the slave chilling extracting tower 23f that is passed through in venturi reactor 7a is vigorously mixed, text Air vapor heater 15f is connected with the pipeline of reactor 7a connections gas inlet in mound, the heat being passed through from gas-distributing cylinder 26f is steamed Vapour is heated air by air vapor heater 15f, and the air of heating is together passed into gas inlet, maintains activated carbon After sodium acid carbonate and flue gas mixing, the temperature of mixed gas does not decline.Mixed flue gas is passed through the cigarette positioned at middle case 2f afterwards Gas import, makes flue gas come upper box by filter bag 4f by the work of poppet 10f in the babinet locellus 17f in upper box 1f 1f, the dust in flue gas are attached to filter bag 4f outer surfaces.As filter bag 4f outer surfaces adhesive dust gradually increases, air-flow passes through resistance Power also gradually increases, and opens the impulse electromagnetic valve 9f in filter bag 4f openings as needed, compressed air is from injection tube 8f Filter bag 4f is sprayed into, filter bag 4f is once expanded, shakes off the dust that filter bag 4f adhering on surface.Compressed air is will by air compressor machine Outside air compression is provided, and is stored in the air accumulator of bag filter 8a, by pipeline by injection tube 8f and air accumulator phase Connection, while impulse electromagnetic valve 9f is installed in the duct to control whether to spray compressed gas, when gas ejecting system 19f needs work When, impulse electromagnetic valve 9f is opened, and compressed air is sprayed from injection tube 8f.Dust leave fall into behind filter bag 4f surfaces it is underlying Ash bucket 3f, by opening the cinder-discharging port 14f below ash bucket 3f, cleans out bag filter 8a, dust passes through by the dust of deposition Grey car 24f is transported.Flue gas leads to SCR catalytic reactors by exhanst gas outlet after filtering.

In flue gas mixed active charcoal, using dry active powdered carbon, since dry active powdered carbon has great specific surface area, The heavy metals such as dioxin in flue gas, mercury can be adsorbed, these original cannot be removed because particle is excessively small by filter bag 4f Pollutant, as dry active powdered carbon is filtered by filter bag 4f together.Spraying sodium bicarbonate solid can be with the sour gas in flue gas Precursor reactant, improves the quality of flue gas.Both injected volume can be controlled by metering screw conveyer 16f, it is therefore prevented that to it Bag filter 8a afterwards causes excessive pressure.Dry active powdered carbon and sodium bicarbonate solid are being attached to filter bag 4f appearances at the same time During face, the flue gas being filtered through can be continued, improve dedirt rate.

Mixed flue gas is passed through the gas inlet positioned at middle case 2f, and gas inlet is provided with spark arrester 21f, spark arrester 21f It is fixedly connected with gas inlet frame, and bottom is equipped with opening.Stopped the flow direction for changing mixed gas by spark arrester 21f, The Mars that is carried in air-flow will not make filter bag 4f as the stop of spark arrester 21f, falls in underlying ash bucket 3f Into infringement.

The hot wind stove air blast set in ash bucket 3f is removed the dust being attached on ash bucket 3f walls by being passed through hot wind.Pass through Electric heater unit 13f in hot wind stove air blast and cinder-discharging port 14f is together operated, it is therefore prevented that when cinder-discharging port 14f unloads ash, ash bucket Because temperature, which changes, occurs dew condensation phenomenon damage equipment inside 3f.

Upper box 1f is made of four babinet locellus 17f, according to different flue gas situations, by controlling different babinet locellus Poppet 10f in 17f, to control dedusting speed.Too many ash is adhered in filter bag 4f outer surfaces in a babinet locellus 17f After dirt, stop the work of babinet locellus 17f poppets 10f.By the injection tube 8f of filter bag 4f overthe openings, open as needed Impulse electromagnetic valve 9f is opened, compressed air sprays into filter bag 4f from injection tube 8f, filter bag 4f is once expanded, and shakes off filter bag 4f surfaces Accompanying dust.Dust falls into underlying ash bucket 3f after leaving filter bag 4f surfaces.Then proceed to open poppet 10f into Row dedusting works, and other babinet locellus 17f are unaffected at the same time, operating alone.

In whole dust removal process, flue gas mixes dry active powdered carbon and sodium bicarbonate solid in venturi reactor 7a, Middle case 2f is then passed through together, is changed by spark arrester 21f and whole middle case 2f is full of behind flue gas direction, the Mars in flue gas Stopped by spark arrester 21f.By the work of poppet 10f in each babinet locellus 17f in upper box 1f, middle case 2f will be in Mixed flue gas lifted into upper box 1f, again during flue gas have passed through the filtering of filter bag 4f, dust, dry active powdered carbon and Sodium bicarbonate solid is all isolated in filter bag 4f outer surfaces.By injection system, the solid of filter bag 4f outer surfaces attachment is shaken off Into ash bucket 3f, bag filter 8a is then discharged out, it is anti-that the dust removal flue gas in upper box 1f by exhanst gas outlet is passed through SCR catalysis Answer device.

Referring to the drawings 11, below to be further described to SCR reactors, pure ammonia 12g and process wind turbine rouse The compressed air 13g entered, by the venturi injection of ammonia sky mixer 2g, forms ammon amount 5% when by ammonia sky mixer 2g Mixed gas.Flue gas after dust removal step before by pipeline to SCR reactor flows, in the duct by ammonia-spraying grid 1g, ammonia-spraying grid 1g by the nozzle being arranged on inner-walls of duct sprayed into pipeline mixed gas in ammonia sky mixer 2g with Flue gas, which produces violent mixing, makes ammonia sufficiently be contacted with nitrogen oxides.The pipeline that all gas pass through all is utilidor, The flue gas of mixing ammonia 12g is passed through counter before causing furnace body, have passed through electric heating equipment, maintains the temperature of flue gas.

In the mixed gas of flue gas and ammonia 12g after smoke inlet 9g is passed through, mixed flue gas receives water conservancy diversion grid 4g Stop, mixed flue gas is first subjected to the stop of the top flow deflector 16g and is changed into scattering from gathering, the mixed flue gas to scatter along Flow deflector 16g is set to flow around obliquely, in this process, mixed flue gas can be by the length that is set on flow deflector 16g It is square to flow downward through groove 18g, stop again by the flow deflector 16g being provided below, continue to change mixed flue gas The state gathered, is more uniformly distributed mixed flue gas density after water conservancy diversion grid 4g, and sets obliquely, on flow deflector 16g not Can lamination mixed gas.For mixed gas after gathering and being changed into scattering, flowing to for mixed gas is inconsistent, when mixed gas downwards from By rear in flow straightening grid 6g, the vertical flue gas of flow direction is by flow straightening grid 6g, and flow direction is not vertical flue gas, Stopping flowing by being subject to the side wall of cuboid grill unit to stop during flow straightening grid 6g, and affected by gravity change is flowed Dynamic direction, flow direction is changed into vertically downward.So when flue gas is after flow straightening grid 6g, flow of flue gas direction is all changed into vertical Directly.

The mixed flue gas of perpendicular flow is all flowed along hole direction set by catalyst layer 7g, reduces fluid to catalyst Layer 7g's washes away caused infringement.Three layers of catalyst layer 7g ensure that SCR, and the reaction was complete, the ammonia under the action of catalyst 12g and nitrogen oxides carry out reduction reaction and produce the nitrogen and water little to air harm, remove the nitre content in flue gas as far as possible.

Acoustic wave ash ejector 8g is designed with every layer of catalyst layer 7g, acoustic wave ash ejector 8g passes through external compressed air 13g Device, shakes the sheet metal in acoustic wave ash ejector 8g with compressed air 13g and produces sound wave, sound wave makes the product on catalyst layer 7g Grey fatigue comes off, and prevents dust stratification on catalyst layer 7g, avoids dust stratification from causing damage for catalyst layer 7g, also improves catalyst The catalytic rate of layer 7g.The exhanst gas outlet 10g pass-outs of flue gas from below after denitration, carry out the removing of other pollutants.

Attached drawing 3 and 12 is refer to, below for emission-control equipment is further elaborated, exhaust gas gas collecting apparatus is used for Collect to structures such as homogeneous pond, coagulative precipitation tank, hydrolysis acidification pool, A/O biochemistry pools, aeration biological fluidization pool, sludge-tanks and And foul smell Scatter Gather caused by sludge thickening dehydrator room and be connected into air inlet pipe 1h, it is sequentially connected on air inlet pipe 1h There are water-separating gas filter 11h and wind turbine 12h, air inlet pipe 1h wears entrance at the top of bacteria bed 2h, sequentially passes through demisting layer 21h, the first gas chamber 22h, biologic packing material layer 23h, the second gas chamber 24h and chemical filler layer 25h, the port of air inlet pipe 1h are arranged at Be provided with circulatory pool 42h in 3rd gas chamber 27h, below the 3rd gas chamber 27h, the end face and circulatory pool 42h liquid levels of air inlet pipe 1h it Between leave gap.

Demisting layer 21h includes longitudinally disposed and parallel to each other some waveform blade 211h, shape between waveform blade 211h Into some longitudinal undulating path 212h.Biologic packing material layer 23h is arranged to the biologic packing material of Multilayer Density, chemical filler layer 25h Many-sided ball filler is arranged to, holding of preventing filler from dropping is both provided with the bottom of biologic packing material layer 23h and chemical filler layer 25h Supporting piece 26h.

The bottom of bacteria bed 2h is provided with circulatory pool 42h, and circulatory pool 42h is included in washing fluid circulation, this is washed Washing fluid circulation includes the circulating water pipe 45h that one end is connected to circulatory pool 42h, and circulating water pipe 45h pumps 47h by first circulation It is connected with the cyclic water tank 43h being arranged at outside bacteria bed 2h, cyclic water tank 43h pumps 44h by second circulation and is connected with Spray tube 46h, spray tube 46h are partially disposed in the first gas chamber 22h and are provided with some spray apertures 41h；Meanwhile bacteria bed 2h Inside it is provided with the top of air pressure detection meter 5h, bacteria bed 2h and is provided with air outlet pipe 3h, air outlet pipe 3h is connected with chemical spray tower The sour spray equipment 71h, the alkali spray equipment 72h that are sequentially connected setting and disinfection spray dress are provided with 7h, chemical spray tower 7h 73h is put, the acid solution that sour spray equipment 71h is sprayed is hydrochloric acid, and the lye that alkali spray equipment 72h is sprayed is sodium hydroxide, is disappeared The thimerosal that malicious spray equipment 73h is sprayed is sodium hypochlorite；Disinfection spray equipment 73h is connected to out on Gas chimney 31h, outlet The bottom of chimney 31h is provided with the sample tap 32h of capping.

Draining is both provided with circulatory pool 42h, sour spray equipment 71h, alkali spray equipment 72h and disinfection spray equipment 73h Pipe 62h, drainpipe 62h are connected to treatment tank 61h by draining pump 63h.

When wash cycle system works, suction pump extracts cleaning solution out of cyclic water tank 43h, and cleaning solution passes through spray tube 46h is transmitted to spray apertures 41h, and the cleaning solution sprayed by spray apertures 41h is in small droplet shape, and cleaning solution is full of the first gas chamber 22h, Portion washes liquid touches demisting layer 21h upwards, returns to water droplet state, flows into circulatory pool 42h, other cleaning solutions, which are gone downwards to, to be filled Full biologic packing material layer 23h, the second gas chamber 24h, chemical filler layer 25h and the 3rd gas chamber 27h, keep the cleaning solution of downstream state most Return to eventually in circulatory pool 42h, the circulation fluid in circulatory pool 42h is by there is circulating water pipe 45h to return in cyclic water tank 43h.

Foul smell first passes through water-separating gas filter 11h under the action of wind turbine 12h in air inlet pipe 1h, removes most water After vapour and dust, into the 3rd gas chamber 27h of bacteria bed 2h, the small droplet of cleaning solution in part foul smell and the 3rd gas chamber 27h And after the cleaning solution on circulating water pool surface comes into full contact with absorption；Continue to go upward to chemical filler layer 25h, by chemical filler and The cleaning solution on chemical filler is adsorbed to absorb or adsorb；Then the second gas chamber 24h is gone upward to, in the second gas chamber 24h After cleaning solution comes into full contact with absorption, biologic packing material layer 23h is then gone upward to, is absorbed by the microorganism decomposition in biologic packing material；It is surplus After remaining part divides foul smell to contact absorption with the cleaning solution in the first gas chamber 22h, the foul smell with a large amount of cleaning solution droplets, which touches, to be removed The waveform blade 211h of mist layer 21h, droplet strike the flexure plane of undulating path 212h, are caught to form water droplet, water droplet reflux Into circulatory pool 42h, gas is then entered in the sour spray equipment 71h of chemical spray tower 7h by air outlet pipe 3h, with spray acid After liquid contact fully, into alkali spray equipment 72h, neutralized with alkali spray liquid, finally enter disinfection spray liquid, it is abundant with thimerosal After contact, it is discharged to by going out Gas chimney 31h in air.

When gas sample after the completion of being handled detects, the lid of the sample tap 32h of chimney bottom need to be only opened, Gas is collected with gas collection bottle, is sampled.

This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this All protected in the right of invention be subject to Patent Law.

Claims (10)

1. a kind of chemical-industrial emissions total system, including：

Sewage disposal system, the sewage disposal system include sequentially connected grid, homogeneous pond, coagulative precipitation tank, hydrolysis acid Change pond, anoxic pond, aerobic tank, secondary settling tank, aeration and biological fluidized reaction pond, final deposition pool and Disinfection examination pond, further include, sludge tune Reservoir, the sludge in the sewage disposal system are connected by least one sludge pump with sludge storage pond；

Sludge treating system, the sludge treating system include the anhydration system being connected with sludge storage pond, the desiccation system System is connected with sludge incinerating system, afterheat utilizing system and flue gas purification system in turn, and the flue gas purification system is included successively Half dry type chilling extracting tower, bag filter, SCR reactors, scrubbing tower, the heater of connection；

Exhaust treatment system, the exhaust treatment system include useless to what is produced in sewage disposal system and sludge treating system The gas collecting apparatus that gas is collected, with biological deodorizing system and at least first order absorption gas chamber system is connected the gas gathering system successively.

A kind of 2. chemical-industrial emissions total system according to claim 1, it is characterised in that the coagulative precipitation tank It is connected with sludge storage pond by sludge lifting pump, the secondary settling tank and final deposition pool pass through sludge pump and sludge storage pond phase Connection, the aerobic tank are connected with interior reflux pump, and the interior reflux pump is connected to anoxic pond, and second sludge pump is given birth to aeration Reflux line is provided between Logistics reaction tank.

A kind of 3. chemical-industrial emissions total system according to claim 1 or 2, it is characterised in that the desiccation system System is connected by sewage sludge storage and transport system with sludge incinerating system, and the sewage sludge storage system keeps in material including dewatered sludge Storehouse, style three-way distributor, the first conveying device and the second conveying device；The style three-way distributor includes feed inlet, the first discharge port With the second discharge port, the feed inlet is communicated in the outlet of desiccation machine, and first conveying device is located under the first discharge port To receive and convey dewatered sludge to rotary kiln, second conveying device is located at the lower section of the second discharge port to receive and defeated for side Dewatered sludge to dewatered sludge is sent to keep in feed bin, the dewatered sludge keeps in feed bin orlop and is additionally provided with the 3rd discharge port, described 3rd discharge port is arranged with handling bag.

4. a kind of chemical-industrial emissions total system according to claim 3, it is characterised in that the dewatered sludge is temporary The 3rd conveying device is provided with below the discharge port in material stock storehouse, second conveying device is two-way conveying, second conveying Positive conveying dewatered sludge to the dewatered sludge of device keeps in feed bin, otherwise is reversely delivered to the first conveying device；

Dewatered sludge in the temporary feed bin of 3rd conveying device transport is defeated to the second conveying device, second conveying device Sending dewatered sludge, first conveying device conveys dewatered sludge to rotary kiln, further includes external desiccation to the first conveying device Sludge receives feed bin, and the external dewatered sludge receives and the 4th conveying device is provided with below the discharge port of feed bin, and the described 4th Conveying device conveys external dewatered sludge to the second conveying device, and second conveying device conveys dewatered sludge to the first conveying Device, first conveying device convey dewatered sludge to rotary kiln.

A kind of 5. chemical-industrial emissions total system according to claim 4, it is characterised in that the sludge incineration system System includes rotary kiln and the dual firing chamber set gradually, is connected with gas pipeline in the rotary kiln and dual firing chamber and passes through burner Light, dewatered sludge is sent into inside rotary kiln by the feed hopper of the rotary kiln by screw conveyor；Discharge system, the row Going out system includes being arranged on smoke discharge tube road, the bottom ash outlet of dual firing chamber lower part on dual firing chamber top, the flue gas discharge Pipeline is connected with afterheat boiler system.

A kind of 6. chemical-industrial emissions total system according to claim 5, it is characterised in that afterheat utilizing system bag Waste heat boiler is included, the entrance of the waste heat boiler is connected with the flue of dual firing chamber；Water circulation system, including it is passed into waste heat Fresh water in boiler simultaneously carries out heat exchange with flue gas, and then produces saturated vapor and hot water, and steam will be passed into recycling dress Among putting；Denitrification apparatus, ammonium hydroxide is sprayed among waste heat boiler by nozzle；Wet type deacidifying device, the wet type deacidifying device It is connected with the smoke discharge tube road of waste heat boiler；Discharger, is arranged on the sewage mouth for being used to discharge sewage of waste heat boiler And the cinder-discharging port of the dirty dirt of discharge.

A kind of 7. chemical-industrial emissions total system according to claim 6, it is characterised in that the half dry type chilling Extracting tower includes furnace body, the cylindrical setting in top of furnace body, and the lower part of the furnace body is set in cone, further includes for will Flue gas is passed through the preboiler of furnace body, the air vapor heater for sealing air to be passed through to furnace body, for device air to be arranged Enter the device compressed air system to furnace body, the first water pipe for fresh water to be passed through to medicament, for medicament to be passed through furnace body Chilling tower medicament delivery pump, the alkaline matter for neutralizing acidic flue gas, the upper end of the furnace body are further included in the medicament The nozzle for being useful for spraying medicine is fixedly connected with, the nozzle is ejected mixture by medicament, fresh water, device air.

A kind of 8. chemical-industrial emissions total system according to claim 7, it is characterised in that the bag filter The injection apparatus for being arranged on outside is further included, the active charcoal material throwing device of the injection apparatus and sodium acid carbonate material add dress Put, the bag filter is internally provided with filter bag, and exhanst gas outlet is provided with above bag filter, in bag filter Lower section be provided with cinder-discharging port.

A kind of 9. chemical-industrial emissions total system according to claim 8, it is characterised in that the SCR reactors Including ammonia-gas spraying device and reactor furnace body, the reactor furnace body is in vertical setting, and the top of the reactor furnace body is equipped with cigarette Gas entrance and its bottom are equipped with exhanst gas outlet, and the ammonia-gas spraying device is connected to the smoke inlet at the top of furnace body by pipeline, described Reactor furnace interior is equipped with water conservancy diversion grid, flow straightening grid, acoustic wave ash ejector and catalyst layer successively, and the water conservancy diversion grid is set Below smoke inlet, the flow straightening grid is arranged on below water conservancy diversion grid, and the catalyst layer is located at flow straightening grid and flue gas Between outlet, the acoustic wave ash ejector is located at the top of catalyst layer.

A kind of 10. chemical-industrial emissions total system according to claim 1, it is characterised in that the biological treatment Including bacteria bed and the chemical spray tower being connected to behind bacteria bed, air inlet pipe is provided with the bacteria bed and is gone out Tracheae, includes the first gas chamber, biologic packing material layer, chemical filler layer, the 3rd gas chamber in the bacteria bed successively from top to bottom And circulatory pool, the port of the air inlet pipe are arranged in the 3rd gas chamber and leave gap with circulatory pool, the air outlet pipe is arranged at Above first gas chamber, water-separating gas filter is provided with the air inlet pipe, the circulatory pool is connected with circulation by first circulation pump Water tank, the cyclic water tank are connected with spray tube for spray washing liquid by second circulation pump, and the spray tube is arranged on the In one gas chamber, the chemical spray tower, which includes being sequentially connected, is provided with sour spray equipment, alkali spray equipment and disinfection spray equipment, The air outlet pipe is connected to sour spray equipment.