CN102353061A - System and method for comprehensively utilizing sludge drying and burning waste heats stepwise - Google Patents
System and method for comprehensively utilizing sludge drying and burning waste heats stepwise Download PDFInfo
- Publication number
- CN102353061A CN102353061A CN 201110245280 CN201110245280A CN102353061A CN 102353061 A CN102353061 A CN 102353061A CN 201110245280 CN201110245280 CN 201110245280 CN 201110245280 A CN201110245280 A CN 201110245280A CN 102353061 A CN102353061 A CN 102353061A
- Authority
- CN
- China
- Prior art keywords
- boiler
- working medium
- sludge
- wet
- small end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a system and a method for comprehensively utilizing sludge drying and burning waste heats. The system comprises a wet sludge delivery unit, a sludge drying unit, a combustion unit, a dual-loop low-temperature waste heat power generation unit, a waste gas discharge unit and a residual heat power generation unit, wherein the sludge drying unit comprises a dry-type deduster and a wet dedusting tower which can perform effective dedusting treatment on tail gases generated by a drying machine; the dual-loop low-temperature residual heat power generation unit can generate electricity by utilizing hot tail gases which are generated by the drying machine and dedusted by the dry-type deduster and the wet dedusting tower, and can generate electricity by utilizing the waste heats with different potential temperatures in the system. According to the invention, a great amount of low-temperature heat energies can be recycled and utilized stepwise so as to achieve the purpose for lowering the operation expense greatly; the dusts, sewages, heat pollution and the like to the environment can be eliminated, and the energy conservation and emission reduction is realized; and 'dust blocking' can not happen for a tail gas treatment system, thus the reliability and stability of the whole system can be improved, and the efficiency is improved effectively.
Description
Technical field
The present invention relates to the energy-conserving and environment-protective technical field, be specifically related to the system and method for the exhaust heat stepped comprehensive utilization of a kind of sludge anhydration burning.
Background technology
Along with Chinese society economy and development of urbanization, the dynamics of environmental protection work is constantly strengthened, and the municipal sewage treatment ability had been greatly improved in recent years, but through the sewage disposal mud of biochemical treatment (hereinafter to be referred as: mud) handling problems becomes increasingly conspicuous.Sewage and mud are two systems that solve municipal water pollution problem tight association again of equal importance, and it is that sewage disposal is able to the final guarantee of implementing that Treatment of Sludge is disposed.Mud is the accompaniment of sewage disposal process, and it is to be main body with the aerobic microbiological, comprises the solid matters such as silt, fiber and plant and animal residues of sneaking in the sewage simultaneously, and the synthesis of material such as adsorbed organic matter, metal, germ, worm's ovum.In addition because the common moisture content of mud higher (moisture content 80%), also have bulky, character is unstable, be prone to the characteristics of corruption, unfavorable transportation.Therefore must it properly be disposed according to sludge nature.
The mud of most of local sewage disposal of China does not obtain safe disposal now; Most sewage treatment plants are sent to soot landfill or air storage with mud; And some illegal enterprise even mud pulled out; Arbitrarily topple over, stack or handle, the mud of sludge-tank is gone into river, saline waters with the direct pump drainage of slush pump without press filtration.Hundreds of tons of mud are arranged not by safe disposal every day, the toppling over arbitrarily of mud, stacking, landfill possibly cause large-scale secondary pollution, lose the meaning of building sewage treatment facility.
From existing sludge treatment mode, most of is main with landfill, and this is the Sludge Disposal Techniques of a commonplace employing, and method of disposal is simple, be prone to row, cost is low.But also there are some problems in the mud landfill: the percolate of mud is a kind of by the liquid of severe contamination, if move improperly, this liquid will get into water table, secondary pollution surrounding environment, river course and underground water source; Also operation brings difficulty to landfill for the high-moisture percentage of mud, high viscosity; Pernicious gas that landfill yard produces and foul smell are directly released into and cause air pollution in the atmosphere; In addition, mud landfill waste soil, the place that is fit to the mud landfill is also more and more limited because of a large amount of outputs of mud, and this has also limited further developing of this method.
The sludge anhydration burning method of disposal can make the whole oxidations of organic matter; Pathogen kill; Reduce sludge volume to greatest extent; Effectively utilize the calorific value of mud; And can be rapidly and make reducing sludge volume up hill and dale; Satisfy more and more stricter environmental requirement and handle the part mud that is unwell to recycling fully, produce lime-ash and also can be used for the building materials industry.Dispose target, the consideration of mud outlet angle from Treatment of Sludge, the sludge anhydration burning scheme has tangible advantage.This method meets the policy that China develops a circular economy, and also meets the treatment principle of " minimizing, innoxious, the resource " of refuse.But the success or failure of sludge drying and incineration system depend primarily on the performance of rational system process and system equipment.There is following significant disadvantages in the sludge drying and incineration system that China builds up at present: 1, unreasonable the causing of system process produces a large amount of sewage, foul smell and mud again in the system flow, causes secondary pollution to environment.2, many Design of device are unreasonable, and exhaust treatment system often takes place by " ash is stifled ", and deashing often stop production.3, a large amount of low temperature exhaust heats that in the design of system flow system produced can not effectively be recycled, and cause the waste of the energy and to the thermal pollution of environment; And bring high operation cost.
Up to now, the method that does not also have complete sludge drying and incineration system and waste heat is effectively utilized synchronously.
Summary of the invention
The present invention provides exhaust heat stepped utilization system of a kind of sludge anhydration burning and method, improves the sludge anhydration burning flow process, and a large amount of low-temperature heat sources can effectively be recycled, and energy-saving and emission-reduction obviously reduce the disposal costs of mud.
The technical solution adopted for the present invention to solve the technical problems is: the system and method that the exhaust heat stepped comprehensive utilization of a kind of sludge anhydration burning is provided; Comprise wet mud supply unit; The sludge drying unit; Fuel element; Low-temperature cogeneration unit, double loop; Toxic emission unit and cogeneration unit; Described wet mud supply unit links to each other with the sludge drying unit; Described sludge drying unit comprises desiccation machine; Dry collector; Wet gas wash tower; The effluent cycle pond; Water pump; Dewatered sludge conveyer (belt feeder or screw machine), described desiccation machine links to each other with dry collector through exhaust pipe; Described dry collector links to each other with wet gas wash tower through exhaust pipe; Described wet gas wash tower is connected to the closed-loop path through spray header and drainpipe and water pump and effluent cycle pond; Described desiccation machine links to each other with fuel element through dewatered sludge conveyer (belt feeder or screw machine); Described desiccation machine links to each other with cogeneration unit or fuel element through jet chimney; Described desiccation machine links to each other with low-temperature cogeneration unit, double loop with exhaust pipe through drain water piping; The sludge drying unit links to each other with the toxic emission unit with fuel element through the high-effect heat exchanger package of small end difference; The high-effect heat exchanger package of described small end difference by heating fumigators through the parallel connection be composed in series; Described heating fumigators is connected with drain tank with wet gas wash tower, desiccation machine drain port, the whole cooler of waste gas respectively; The high-effect heat exchanger package of described small end difference also can link to each other with other thermals source in the external world; Said drain tank links to each other with boiler water tank through drainage pump; The whole cooler of said waste gas links to each other with the waste gas air-introduced machine; Said waste gas air-introduced machine links to each other with boiler with odor removal through air channel barrier respectively; Low-temperature cogeneration unit, described double loop comprises the high-effect heat exchanger package of small end difference, working medium engine admission control valve, working medium engine (screw expander or steam turbine), generator, the high-effect condenser of small end difference, working medium booster, drain tank, drainage pump; Through the working medium pipeline the high-effect heat exchanger package of small end difference; Working medium engine admission control valve; Working medium engine (screw expander or steam turbine); The high-effect condenser of small end difference; The working medium booster connects into a closed-loop path; Ducted working medium becomes the gaseous working medium that the acting ability is arranged through heating evaporation in the high-effect heat exchanger package of small end difference; Gaseous working medium gets into working medium engine (screw expander or steam turbine) acting through working medium engine admission control valve; Working medium after the acting is cooled off in the high-effect condenser of small end difference and is condensed into liquid refrigerant and after the working medium booster boosts, in the high-effect heat exchanger package of small end difference, heat, so reciprocation cycle; Working medium engine (screw expander or steam turbine) is connected with generator coaxle, and working medium engine (screw expander or steam turbine) drives generator for electricity generation; Drain water piping connects the high-effect heat exchanger of small end difference (4.1,4.3), drain tank, drainage pump, makes the cooled hydrophobic closed circulation of getting back to boiler water tank formation water and steam through drainage pump.Described fuel element comprises boiler, Boiler Steam bag, boiler water tank, blower fan, and Boiler Steam bag, boiler water tank link to each other with boiler respectively; The fuel that gets into boiler is except that the dewatered sludge that comes from the sludge drying unit; Can admix other fuel as required and get into boiler; Boiler is except that the waste gas from the toxic emission unit; Also have fresh air, also can from the smokejack of boiler, draw flue gas as required to the desiccation machine air inlet from blower fan.Described toxic emission unit comprises the whole cooler of waste gas, waste gas air inducing, air channel barrier, odor removal; The whole cooler of waste gas is connected with air channel barrier with the waste gas air-introduced machine through exhaust piping; Be connected with odor removal or boiler through the exhaust piping air channel barrier; System can not adopt odor removal and the whole cooler of waste gas to handle waste gas; At this moment; The toxic emission unit only comprises waste gas air-introduced machine, air channel barrier, connects waste gas air-introduced machine, air channel barrier to boiler through exhaust piping.
Described wet mud supply unit (1) comprises that wet mud bin (1.1), wet sludge pumping system or the lifting of wet mud add screw machine system and device (1.2), and described wet mud bin (1.1) and wet sludge pumping system or the lifting of wet mud add screw machine system and device (1.2) and join through pipeline or screw machine.
Described boiler (3.1) and Boiler Steam bag (3.2) join or directly and jet chimney join.
As preferably, described dry collector (2.2) is the cyclone dust collectors of many circles formula band heating: CN201120165280.3.
As preferably, described wet gas wash tower (2.3) coagulates the ball float deduster that water refluxes: CN20120154568.02010101519277 for a kind of band.
As preferably, the high-effect heat exchanger package of described small end difference (4.1,4.2,4.3) is a kind of withstand voltage multipass axial flow spiral heat exchanger: ZL0313883.5; The corrosion-resistant double axial flow spiral heat exchanger that a kind of heat exchange core can be taken out outward: ZL200510041521.1.
As preferably, the high-effect condenser of described small end difference (4.7) is a kind of non-vibrating water-cooled condenser: ZL200910026779.3;
The exhaust heat stepped comprehensive utilization method of a kind of sludge anhydration burning comprises the following steps:
(a) wet mud is delivered in the wet mud bin through the mud transport vehicle, promotes through wet sludge pumping system or wet mud to add the screw machine system and device and be transported to and carry out drying and other treatment in the desiccation machine again;
(b) will wet dewatered sludge that mud carries out producing after the drying and other treatment of desiccation machine is transported in the boiler through the dewatered sludge conveyer and burns; The evaporant that desiccation machine produces in this process carries out dedusting through (tail gas) entering dry collector that carries of air or flue gas; And then the wet gas wash tower of feeding carries out dedusting; The circulated sprinkling system is formed in wet gas wash tower, water pump and effluent cycle pond; Hot exhaust gas is carried out dedusting repeatedly, and the hot exhaust gas after the dedusting leads in the high-effect heat exchanger package of small end difference of low-temperature cogeneration unit, double loop;
(c) the high-effect heat exchanger package of small end difference utilizes hot exhaust gas and desiccation machine discharging saturated hydrophobic (or other external thermal source) that the working medium in the low-temperature cogeneration unit, double loop is carried out heating evaporation; Tail gas becomes waste gas after supercooling; Waste gas can select to get into boiler combustion or discharging after odor removal is handled; The condensate that tail gas produces after supercooling in the high-effect heat exchanger package of small end difference is discharged into carries out harmless processing back discharging in the processing pond of appointment; Working medium behind the high-effect heat exchanger package heating evaporation of small end difference gets into working medium engine (screw expander or steam turbine) acting and drives generator for electricity generation; The cold working medium of gas-liquid two-phase after the acting condenses into liquid refrigerant through the high-effect condenser of small end difference; Behind working medium booster adherence pressure, carry out heating evaporation to the high-effect heat exchanger package of small end difference; Working medium after the heating gets into working medium engine (screw expander or steam turbine) acting again and drives generator for electricity generation, so reciprocation cycle;
(d) steam of boiler generation is transported in the Boiler Steam bag; The steam that produces when boiler is that superheated steam or quality are higher than desiccation machine and take and steam can be fed engine (screw expander or steam turbine) acting and drive generator for electricity generation, and the saturated vapor of boiler generation meets desiccation machine and takes and can directly get into desiccation machine and carry out sludge drying.
Description of drawings
Fig. 1 is a system flow sketch map of the present invention.
1 wet mud supply unit shown in the figure; 1.1 wet mud bin; 1.2 promoting, wet sludge pumping system or wet mud adds the screw machine system and device; 2 sludge drying unit; 2.1 desiccation machine; 2.2 dry collector; 2.3 wet gas wash tower; 2.4 effluent cycle pond; 2.5 water pump; 2.6 dewatered sludge conveyer (belt feeder or screw machine); 3 fuel elements; 3.1 boiler; 3.2 Boiler Steam bag; 3.3 boiler water tank; 3.4 blower fan; Low-temperature cogeneration unit, 4 double loop; 4.1,4.2,4.3, the high-effect heat exchanger package of small end difference; 4.4 working medium engine admission control valve; 4.5 working medium engine (screw expander or steam turbine); 4.6 generator; 4.7 the high-effect condenser of small end difference; 4.8 working medium booster; 4.9 drain tank; 4.10 drainage pump; 5 toxic emission unit; 5.1 the whole cooler of waste gas; 5.2 waste gas air-introduced machine; 5.3 air channel barrier; 5.4 odor removal; 6 cogeneration unit; 6.1 engine (screw expander or steam turbine); 6.2 generator; 6.3 engine bypass valve; 6.4 engine admission control valve.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1; Wet mud is transported to wet mud bin (1.1) by the mud transport vehicle; The wet mud that is unloaded to wet mud bin (1.1) adds the mud inlet that screw machine system and device (1.2) is transported to desiccation machine (2.1) through wet sludge pumping system or the lifting of wet mud; Wet mud is in desiccation machine (2.1) under the effect at indirect heat transfer; Moisture content and a spot of ammonia, hydrogen sulfide and small organic molecule in the wet mud are heated evaporation; These evaporants have formed hot exhaust gas under the carrying of air that gets into desiccation machine (2.1) or flue gas, and are detached desiccation machine (2.1) along with exhaust pipe successively gets into dry collector (2.2) and wet gas wash tower (2.3).The dewatered sludge that has evaporated moisture content is discharged to dewatered sludge conveyer (belt feeder or screw machine) (2.6) at desiccation machine (2.1) afterbody, and dewatered sludge arrives boiler (3.1) through dewatered sludge conveyer (belt feeder or screw machine) (2.6) and burns.The gas that gets into dry collector (2.2) is the hot gas that is entrained with a small amount of dewatered sludge dirt; Hot gas gets into wet gas wash tower (2.3) and proceeds dedusting after dry collector (2.2) dedusting; Hot gas after the dedusting is delivered to the high-effect heat exchanger package (4.1 of small end difference by pipeline; 4.3); Through cooled tail gas can get into boiler (3.1) burning or pass through the whole cooler (5.1) of waste gas, waste gas air-introduced machine (5.2) and air channel barrier (5.3) successively by pipeline according to the technological requirement selection after, passing through odor removal (5.4) again handles; At last with the qualified exhaust emissions of temperature less than 40 ℃; Two kinds of technologies also can be handled simultaneously, also can select wherein a kind of technology to handle as required.Dewatered sludge has produced steam and flue gas after boiler (3.1) burning; Steam is in Boiler Steam bag (3.2); When being superheated steam or the quality that is higher than desiccation machine (2.1) needs, the steam of boiler for producing can drive generator (6.2) generating through engine (screw expander or steam turbine) (6.1) acting earlier; The saturated vapor that meets desiccation machine (2.1) requirement of discharging gets into desiccation machine (2.1) again and carries out sludge drying; If what boiler (3.1) was produced is to meet the saturated vapor that desiccation machine (2.1) requires, saturated vapor can directly get into the mummification of carrying out mud in the desiccation machine (2.1).Get into the steam in the desiccation machine (2.1), the latent heat of vaporization is passed to mud after, condensed into saturation water, saturation water is through the working medium of drain water piping heating low-temperature cogeneration unit, double loop (4) in the high-effect heat exchanger package of small end difference (4.2).What condense after the cooling is hydrophobic to drain tank (4.9), by drainage pump (4.10) the hydrophobic boiler water tank (3.3) that is transported to.
In low-temperature cogeneration unit, double loop (4); Through the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) hot working fluid after the heating gets into working medium engine (screw expander or steam turbine) (4.5) acting through working medium engine admission control valve (4.4) and drive generator (4.6) generating; The cold working medium of gas-liquid two-phase after the acting condenses into liquid refrigerant through the high-effect condenser of small end difference (4.7); Behind working medium booster (4.8) adherence pressure, arrive the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) heat; Working medium after the heating gets into working medium engine (screw expander or steam turbine) (4.5) acting again and drives generator (4.6) generating, so reciprocation cycle.
Claims (9)
1. a sludge anhydration burning and exhaust heat stepped utilization system and method comprise wet mud supply unit (1), sludge drying unit (2), fuel element (3), low-temperature cogeneration unit, double loop (4), toxic emission unit (5) and cogeneration unit (6); Described sludge drying unit (2) comprises desiccation machine (2.1), dry collector (2.2), wet gas wash tower (2.3), effluent cycle pond (2.4), water pump (2.5), dewatered sludge conveyer (belt feeder or screw machine) (2.6); Described wet mud supply unit (1) comprises wet mud bin (1.1), wet sludge pumping system or the lifting of wet mud and adds screw machine system and device (1.2); Described fuel element (3) comprises boiler (3.1), Boiler Steam bag (3.2), boiler water tank (3.3), blower fan (3.4); Low-temperature cogeneration unit, described double loop (4) comprises the high-effect heat exchanger package (4.1 of small end difference; 4.2,4.3), working medium engine admission control valve (4.4), working medium engine (screw expander or steam turbine) (4.5), generator (4.6), the high-effect condenser of small end difference (4.7), working medium booster (4.8), drain tank (4.9), drainage pump (4.10); Described toxic emission unit (5) comprises waste gas whole cooler (5.1), waste gas air-introduced machine (5.2), air channel barrier (5.3), odor removal (5.4) or only contains waste gas air-introduced machine (5.2), air channel barrier (5.3); Described cogeneration unit (6) comprises engine (screw expander or steam turbine) (6.1), generator (6.2), engine bypass valve (6.3), engine admission control valve (6.4); Described sludge drying unit (2) links to each other with fuel element (3) or cogeneration unit (6), low-temperature cogeneration unit, double loop (4), the mud supply unit (1) that wets respectively through jet chimney, drain water piping, exhaust pipe, wet sludge carrier pipe road, dewatered sludge conveyer; It is characterized in that: described desiccation machine (2.1) links to each other with mud supply unit (1) through conveyance conduit; Described desiccation machine (2.1) links to each other with engine (screw expander or steam turbine) (6.1) or Boiler Steam bag (3.2) through jet chimney; Described desiccation machine (2.1) links to each other with dry collector (2.2) through exhaust pipe; Described dry collector (2.2) links to each other with wet gas wash tower (2.3) through exhaust pipe; Described wet gas wash tower (2.3) is connected to the closed loop through spray header and drainpipe and water pump (2.5), effluent cycle pond (2.4); Described wet gas wash tower (2.3) links to each other with the high-effect heat exchanger of small end difference (4.1,4.3) through exhaust pipe; Described desiccation machine (2.1) passes through desiccation machine air inlet and atmosphere, or links to each other with boiler (3.1) back-end ductwork through flue; Described desiccation machine (2.1) links to each other with boiler (3.1) through dewatered sludge conveyer (2.6); Described desiccation machine (2.1) links to each other with the high-effect heat exchanger of small end difference (4.2) through drain water piping; Whole cooler (5.1) of described waste gas or waste gas air-introduced machine (5.2) link to each other with the high-effect heat exchanger of small end difference (4.1,4.3) through exhaust piping; Described waste gas air-introduced machine (5.2) links to each other with boiler (3.1) or odor removal (5.4) through air channel barrier (5.3); Described boiler water tank (3.3) links to each other with drain tank (4.9) through drainage pump (4.10).
2. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method; It is characterized in that: wet mud supply unit (1) comprises that wet mud bin (1.1), wet sludge pumping system or the lifting of wet mud add screw machine system and device (1.2), and described wet mud bin (1.1) and wet sludge pumping system or the lifting of wet mud add screw machine system and device (1.2) and join through pipeline or screw machine.
3. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method; It is characterized in that: described fuel element (3) comprises boiler (3.1), Boiler Steam bag (3.2), boiler water tank (3.3), blower fan (3.4); Boiler Steam bag (3.2), boiler water tank (3.3) join with boiler (3.1), or boiler (3.1) is direct and jet chimney joins; The fuel that gets into boiler (3.1) is except that the dewatered sludge that comes from sludge drying unit (2); Can admix other fuel as required and get into boiler (3.1); Boiler (3.1) is except that the waste gas from toxic emission unit (5); Also have fresh air, also can from the smokejack of boiler (3.1), draw flue gas as required to desiccation machine (2.1) air inlet from blower fan (3.4).
4. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method is characterized in that: described dry collector (2.2) is the cyclone dust collectors of many circles formula band heating.
5. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method; It is characterized in that described toxic emission unit (5) comprises the whole cooler (5.1) of waste gas; Waste gas air-introduced machine (5.2); Air channel barrier (5.3); Odor removal (5.4); The whole cooler of waste gas (5.1) is connected with air channel barrier (5.3) with waste gas air-introduced machine (5.2) through exhaust piping; Be connected with odor removal (5.4) or boiler (3.1) through exhaust piping air channel barrier (5.3); When not using odor removal (5.4) to handle waste gas; The whole cooler of waste gas (5.1) does not re-use yet; At this moment; Toxic emission unit (5) only comprises waste gas air-introduced machine (5.2); Air channel barrier (5.3) connects waste gas air-introduced machine (5.2) and air channel barrier (5.3) through exhaust piping.
6. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method; It is characterized in that low-temperature cogeneration unit, described double loop (4) comprises the high-effect heat exchanger package (4.1 of small end difference; 4.2,4.3), working medium engine admission control valve (4.4), working medium engine (screw expander or steam turbine) (4.5), generator (4.6), the high-effect condenser of small end difference (4.7), working medium booster (4.8), drain tank (4.9), drainage pump (4.10); Through the working medium pipeline the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3); Working medium engine admission control valve (4.4); Working medium engine (screw expander or steam turbine) (4.5); The high-effect condenser of small end difference (4.7); Working medium booster (4.8) connects into a closed-loop path; Ducted working medium is in the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) in become the gaseous working medium that the acting ability is arranged through heating evaporation; Gaseous working medium gets into working medium engine (screw expander or steam turbine) (4.5) acting through working medium engine admission control valve (4.4); Working medium after the acting in the high-effect condenser of small end difference (4.7), cool off condense into liquid refrigerant after working medium booster (4.8) boosts to the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) middle heating, so reciprocation cycle; Working medium engine (screw expander or steam turbine) (4.5) and coaxial connection of generator (4.6), working medium engine (screw expander or steam turbine) (4.5) drive generator (4.6) generating; Drain water piping connects the high-effect heat exchanger of small end difference (4.1,4.3), drain tank (4.9), drainage pump (4.10), makes the cooled hydrophobic closed circulation that boiler water tank (3.3) forms water and steam of getting back to.
7. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method; It is characterized in that described cogeneration unit (6) comprises engine (screw expander or steam turbine) (6.1), generator (6.2), engine bypass valve (6.3), engine admission control valve (6.4); Steam quality in Boiler Steam bag (3.2) is higher than desiccation machine (2.1) and takes; Steam does work to engine (screw expander or steam turbine) (6.1) through engine admission control valve (6.4) through pipeline, drives generator (6.2) generating; Steam quality in Boiler Steam bag (3.2) is fit to desiccation machine (2.1) and takes, and steam directly gets into desiccation machine (2.1) through pipeline through engine bypass valve (6.3).
8. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method is characterized in that described wet gas wash tower (2.3) is a float-ball type cleaning dust tower.
9. a kind of sludge anhydration burning according to claim 1 and exhaust heat stepped utilization system and method,, it is characterized in that, comprise the following steps:
(a) wet mud is delivered in the wet mud bin (1.1) through the mud transport vehicle, promotes through wet sludge pumping system or wet mud to add screw machine system and device (1.2) and be transported in the desiccation machine (2.1) and carry out drying and other treatment again;
(b) will wet dewatered sludge that mud carries out producing after the drying and other treatment of desiccation machine (2.1) is transported in the boiler (3.1) through dewatered sludge conveyer (belt feeder or screw machine) (2.6) and burns; The tail gas that desiccation machine (2.1) produces in this process gets into dry collector (2.2) dedusting; And then further dedusting of the wet gas wash tower (2.3) of feeding; Wet gas wash tower (2.3) and effluent cycle pond (2.4), water pump (2.5) are formed the circulatory system; Tail gas is carried out dedusting repeatedly; Hot exhaust gas after the dedusting is delivered in the high-effect heat exchanger of small end difference (4.1,4.3); Get in the hydrophobic high-effect heat exchanger of entering small end difference (4.2) that produces after the steam cooled of desiccation machine (2.1);
(c) cold working medium is in the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) in by hot exhaust gas heating, evaporation; Tail gas is through selecting to get into boiler (3.1) burning or discharging after odor removal (5.4) is handled after the supercooling; Through the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) the gaseous state hot working fluid of heating gets into working medium engine (screw expander or steam turbine) (4.5) acting and drive generator (4.6) generating; The cold working medium of gaseous state after the acting condenses into liquid refrigerant through the high-effect condenser of small end difference (4.7) cooling; Behind working medium booster (4.8) adherence pressure, arrive the high-effect heat exchanger package (4.1 of small end difference; 4.2; 4.3) heat; Working medium after the heating gets into working medium engine (screw expander or steam turbine) (4.5) acting again and drives generator (4.6) generating, so reciprocation cycle;
(d) steam of boiler (3.1) generation is transported in the Boiler Steam bag (3.2); The steam quality that produces when boiler (3.1) is higher than desiccation machine (2.1) and takes; Steam can be fed engine (screw expander or steam turbine) (6.1) through engine admission control valve (6.4) and drive generator (6.2) acting generating; And then desiccation machine (2.1) is sent in the exhaust of engine (screw expander or steam turbine) (6.1) carried out sludge drying; Steam quality in Boiler Steam bag (3.2) is fit to desiccation machine (2.1) and takes, and then directly getting into desiccation machine (2.1) carries out sludge drying;
(e) the required fresh air of incinerator is sent into by blower fan (3.4), and flue gas is effluxed by chimney; Also can draw part of smoke to desiccation machine (2.1) air inlet; Cooledly hydrophobicly send boiler water tank (3.3) back to and recycle through drain tank (4.9), drainage pump (4.10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110245280 CN102353061A (en) | 2011-08-19 | 2011-08-19 | System and method for comprehensively utilizing sludge drying and burning waste heats stepwise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110245280 CN102353061A (en) | 2011-08-19 | 2011-08-19 | System and method for comprehensively utilizing sludge drying and burning waste heats stepwise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102353061A true CN102353061A (en) | 2012-02-15 |
Family
ID=45576684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110245280 Pending CN102353061A (en) | 2011-08-19 | 2011-08-19 | System and method for comprehensively utilizing sludge drying and burning waste heats stepwise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102353061A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619567A (en) * | 2012-04-24 | 2012-08-01 | 上海齐耀膨胀机有限公司 | Power system utilizing excessive steam pressure of two-stage screw expansion machine |
| CN102777920A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Dried sludge incineration feeding system |
| CN103979766A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Indirect sludge drying tail gas treatment device and treatment method thereof |
| CN104016558A (en) * | 2013-03-01 | 2014-09-03 | 上海科锐驰化工装备技术有限公司 | Method and device for drying sludge |
| CN104341084A (en) * | 2013-08-02 | 2015-02-11 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type dyeing sludge drying system for combined heat and power generation |
| CN104628237A (en) * | 2015-01-23 | 2015-05-20 | 广东电网有限责任公司电力科学研究院 | Sludge drying incineration system based on thermal power plant |
| CN107089784A (en) * | 2017-06-13 | 2017-08-25 | 北京纬纶华业环保科技股份有限公司 | A kind of system and method for recycling sludge processing |
| CN107585996A (en) * | 2017-09-26 | 2018-01-16 | 江苏中圣高科技产业有限公司 | The sludge drying system and method for a kind of high-efficient energy-saving environment friendly |
| CN110207089A (en) * | 2019-06-26 | 2019-09-06 | 西安热工研究院有限公司 | A kind of coal fired power plant unit sludge coupled electricity-generation system and its working method |
| CN110252781A (en) * | 2019-07-26 | 2019-09-20 | 郑州同济环保工程有限公司 | Rubbish three phase separation treatment process |
| CN110906348A (en) * | 2019-10-30 | 2020-03-24 | 鞍钢股份有限公司 | System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator |
| CN111453968A (en) * | 2020-04-08 | 2020-07-28 | 湖南清源智造设备有限公司 | Sludge drying and incineration coupling treatment system |
| CN113531902A (en) * | 2021-05-08 | 2021-10-22 | 刘文治 | Energy-saving method for auxiliary heating by using compression latent heat and sensible heat of overpressure saturated water |
-
2011
- 2011-08-19 CN CN 201110245280 patent/CN102353061A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619567A (en) * | 2012-04-24 | 2012-08-01 | 上海齐耀膨胀机有限公司 | Power system utilizing excessive steam pressure of two-stage screw expansion machine |
| CN102777920A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Dried sludge incineration feeding system |
| CN104016558A (en) * | 2013-03-01 | 2014-09-03 | 上海科锐驰化工装备技术有限公司 | Method and device for drying sludge |
| CN104341084B (en) * | 2013-08-02 | 2015-12-02 | 天华化工机械及自动化研究设计院有限公司 | For the energy-saving printing and dyeing sludge dehumidification system of cogeneration |
| CN104341084A (en) * | 2013-08-02 | 2015-02-11 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type dyeing sludge drying system for combined heat and power generation |
| CN103979766A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Indirect sludge drying tail gas treatment device and treatment method thereof |
| CN104628237A (en) * | 2015-01-23 | 2015-05-20 | 广东电网有限责任公司电力科学研究院 | Sludge drying incineration system based on thermal power plant |
| CN107089784A (en) * | 2017-06-13 | 2017-08-25 | 北京纬纶华业环保科技股份有限公司 | A kind of system and method for recycling sludge processing |
| CN107585996A (en) * | 2017-09-26 | 2018-01-16 | 江苏中圣高科技产业有限公司 | The sludge drying system and method for a kind of high-efficient energy-saving environment friendly |
| CN110207089A (en) * | 2019-06-26 | 2019-09-06 | 西安热工研究院有限公司 | A kind of coal fired power plant unit sludge coupled electricity-generation system and its working method |
| CN110252781A (en) * | 2019-07-26 | 2019-09-20 | 郑州同济环保工程有限公司 | Rubbish three phase separation treatment process |
| CN110906348A (en) * | 2019-10-30 | 2020-03-24 | 鞍钢股份有限公司 | System and method for comprehensively utilizing low-temperature flue gas waste heat of color coating incinerator |
| CN111453968A (en) * | 2020-04-08 | 2020-07-28 | 湖南清源智造设备有限公司 | Sludge drying and incineration coupling treatment system |
| CN111453968B (en) * | 2020-04-08 | 2022-07-01 | 湖南清源智造设备有限公司 | Sludge drying and incineration coupling treatment system |
| CN113531902A (en) * | 2021-05-08 | 2021-10-22 | 刘文治 | Energy-saving method for auxiliary heating by using compression latent heat and sensible heat of overpressure saturated water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353061A (en) | System and method for comprehensively utilizing sludge drying and burning waste heats stepwise | |
| CN102252331B (en) | Energy self-feed type fluidized bed sludge incineration and tail gas pollution control system | |
| CN103539333B (en) | System and method for drying sludge through waste heat of gas turbine | |
| CN107572740A (en) | A kind of sludge at low temperature desiccation burning integral method and system using fume afterheat | |
| CN202032591U (en) | Sludge incineration and tail gas pollution control system for energy-self-sufficient fluidized bed | |
| CN101618931B (en) | Mud drying and incinerating integrated system and use method thereof | |
| WO2012097659A1 (en) | Non-contact flue-gas waste-heat sludge drying system | |
| CN110748899A (en) | Coal-fired coupled sludge drying incineration system and method considering waste heat utilization | |
| CN102219346A (en) | System for drying and treating sludge by utilizing afterheat to generate high-temperature circulating air | |
| CN215886751U (en) | Sludge two-stage drying pyrolysis disposal system | |
| CN102001809B (en) | Belt-type drying complete processing device and method for sludge | |
| CN211367382U (en) | Sludge low-temperature drying coupling pyrolysis system | |
| CN104150732A (en) | Two-stage sludge drying system | |
| CN102701564A (en) | Sludge drying method | |
| CN208536004U (en) | Utilize the sludge at low temperature anhydration and incineration device of fume afterheat | |
| CN211040991U (en) | Coal-fired coupling sludge drying and incinerating system considering waste heat utilization | |
| CN112707626A (en) | Sludge drying system and sludge drying method thereof | |
| CN204588966U (en) | A kind of paper mill sludge high temperature harmless treatment device | |
| CN104329676B (en) | Fluid bed sludge incinerating system and processing method | |
| CN112010528A (en) | Waste incineration boiler coupling sludge drying disposal system | |
| CN110953594A (en) | System for multistage desiccator and fluidized bed incinerator handle mud and recovery energy | |
| CN111087162A (en) | Sludge drying coupling low-nitrogen combustion system | |
| CN203653399U (en) | System for drying sludge by using waste heat of gas turbine | |
| CN204079746U (en) | A kind of heat drying system | |
| CN102557376A (en) | Sludge drying treatment method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |