CN203866170U - Treatment device for sludge indirect dry tail gas - Google Patents
Treatment device for sludge indirect dry tail gas Download PDFInfo
- Publication number
- CN203866170U CN203866170U CN201420273861.2U CN201420273861U CN203866170U CN 203866170 U CN203866170 U CN 203866170U CN 201420273861 U CN201420273861 U CN 201420273861U CN 203866170 U CN203866170 U CN 203866170U
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- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a treatment device for sludge indirect dry tail gas. The device comprises a spiral conveyer, an indirect drying machine, a tail gas fan, a front spray tower, a sedimentation tank, a heat exchanger, a cooling tower, an air heater, a non-condensing draught fan, a boiler and the like. According to the treatment device for the sludge indirect dry tail gas, a small quantity of sedimentation wet sludge is delivered back to the indirect drying machine inlet for secondary drying after the tail gas produced in indirect drying is treated, tail gas coagulate water is delivered back to a sewage treatment plant, and non-condensing tail gas is delivered back to a boiler to be burned, so that substances with the solid, liquid and gas phases are effectively treated, and the recycled heat is used in the process, so that net heat consumption for drying is reduced.
Description
Technical field
The utility model relates to tail gas hazard-free to be processed and heat recovery technology field, particularly a kind of mud contact drying exhaust gas processing device.
Background technology
Contact drying is the common methods of drying sludge, as adopted blade dryer sludge-drying.Dried tail gas main component is water vapour, contain the volatile media that a small amount of dust and dry materials produce simultaneously, these volatile medias are divided into condensable gas and incondensable gas two classes, wherein may contain poisonous and harmful element (relevant with material variety), therefore the direct discharge of dried tail gas may cause severe contamination to environment, need to carry out harmless treatment.
In addition, the principal constituent of tail gas is water vapour, contains a large amount of latent heat, if efficient recovery and rationally utilization will contribute to significantly to reduce dry net heat consumption, thereby reduce whole sludge disposal cost.
Utility model content
The purpose of this utility model is to provide a kind of and is difficult for polluting, the mud contact drying exhaust gas processing device of recyclable waste heat, easy care.
The technical solution that realizes the utility model object is:
A kind of mud contact drying exhaust gas processing device, comprises worm conveyor, contact drying machine, exhaust fan, spray water inlet tube, spray water valve, spray pump, preposition spray column, settling tank, the solidifying water pipe of the first tail gas, tail gas water extraction pump, wet mud transfer roller, the solidifying water valve of tail gas, tail air condensate water shoot, cooling tower water intaking valve, cooling tower outlet valve, cooling tower, interchanger, hot water circulating pump, the solidifying water pipe of the second tail gas, noncondensing gas blower fan, hot water by-pass valve, steam air heater, gas inlet pipe, air blower, boiler, outside wet sludge conveyer is connected with helical feed machine inlet capable, worm conveyor discharge port is connected with contact drying machine inlet capable, contact drying machine dewatered sludge discharge port is connected with peripheral equipment, contact drying tail gas exports by pipeline and exhaust fan, the blast inlet of preposition spray column connects successively, spray water inlet tube is by pipeline and spray water valve, spray pump, the water-in of preposition spray column connects successively, the water outlet of preposition spray column is connected by pipeline with settling tank water inlet, the water port of settling tank is connected with the solidifying water pipe of the first tail gas, the solidifying water pipe of the first tail gas with and the second tail gas of being connected of interchanger water port coagulate water pipe and converge afterwards and be connected with tail gas water extraction pump, tail gas water extraction pump outlet point two-way, one tunnel and tail gas coagulate water valve, tail air condensate water shoot connects successively, another road and cooling tower water intaking valve, the water-in of cooling tower connects successively, sludge from sedimentation tank mouth and wet mud transfer roller, contact drying machine inlet capable connects successively, the water outlet of cooling tower is by pipeline and cooling tower outlet valve, spray pump connects successively, preposition spray column pneumatic outlet is connected with interchanger inlet mouth, interchanger water outlet is connected with hot water circulating pump, hot water circulation pump discharge is divided into two-way, one tunnel is connected with steam air heater water-in, separately lead up to pipeline and hot water by-pass valve, the water inlet of worm conveyor connects successively, the water outlet of worm conveyor is connected with interchanger water inlet by pipeline, the noncondensing gas of interchanger exports by pipeline and noncondensing gas blower fan, the noncondensing gas inlet mouth of boiler connects successively, extraneous air is by pipeline and gas inlet pipe, air blower, steam air heater, the gas inlet of boiler connects successively, Boiler Steam outlet is connected with the steam-in of contact drying machine by pipeline, the condensed water outlet of contact drying machine is connected with the admission port of boiler by pipeline.
Compared with prior art, the beneficial effects of the utility model are:
(1) the solid-liquid-gas three phase material that the utility model drying process produces has all obtained effective processing, can not produce pollution.
(2) in the utility model, the contained most of waste heat of tail gas, through reclaiming for Boiler Air Heater's and the preheating of wet mud course of conveying, has significantly reduced dry net heat consumption, is conducive to reduce drying sludge running cost.
Brief description of the drawings
Accompanying drawing is the structural representation of the utility model mud contact drying exhaust gas processing device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of mud contact drying of the present invention exhaust gas processing device, comprise worm conveyor 2, contact drying machine 5, exhaust fan 8, spray water inlet tube 9, spray water valve 10, spray pump 11, preposition spray column 12, settling tank 13, the first tail gas coagulates water pipe 14, tail gas water extraction pump 15, wet mud transfer roller 16, tail gas coagulates water valve 17, tail air condensate water shoot 18, cooling tower water intaking valve 19, cooling tower outlet valve 20, cooling tower 21, interchanger 22, hot water circulating pump 23, the second tail gas coagulates water pipe 24, noncondensing gas blower fan 25, hot water by-pass valve 26, steam air heater 27, gas inlet pipe 28, air blower 29, boiler 30, outside wet sludge conveyer is connected with helical feed machine inlet capable 1, worm conveyor discharge port 3 is connected with contact drying machine inlet capable 4, contact drying machine dewatered sludge discharge port 7 is connected with peripheral equipment, the outlet 6 of contact drying tail gas is by pipeline and exhaust fan 8, the blast inlet of preposition spray column 12 connects successively, spray water inlet tube 9 is by pipeline and spray water valve 10, spray pump 11, the water-in of preposition spray column 12 connects successively, the water outlet of preposition spray column 12 is connected by pipeline with settling tank 13 water inlets, the water port of settling tank 13 is connected with the solidifying water pipe 14 of the first tail gas, the solidifying water pipe 14 of the first tail gas with and the second tail gas of being connected of interchanger 22 water port coagulate water pipe 24 and converge afterwards and be connected with tail gas water extraction pump 15, tail gas water extraction pump 15 outlet point two-way, one tunnel and tail gas coagulate water valve 17, tail air condensate water shoot 18 connects successively, another road and cooling tower water intaking valve 19, the water-in of cooling tower 21 connects successively, settling tank 13 mud discharging mouths and wet mud transfer roller 16, contact drying machine inlet capable 4 connects successively, the water outlet of cooling tower 21 is by pipeline and cooling tower outlet valve 20, spray pump 11 connects successively, preposition spray column 12 pneumatic outlets are connected with interchanger 22 inlet mouths, interchanger 22 water outlets are connected with hot water circulating pump 23, hot water circulating pump 23 outlets are divided into two-way, one tunnel is connected with steam air heater 27 water-ins, separately lead up to pipeline and hot water by-pass valve 26, the water inlet of worm conveyor 2 connects successively, the water outlet of worm conveyor 2 is connected with interchanger 22 water inlets by pipeline, the noncondensing gas of interchanger 22 exports by pipeline and noncondensing gas blower fan 25, the noncondensing gas inlet mouth of boiler 30 connects successively, extraneous air is by pipeline and gas inlet pipe 28, air blower 29, steam air heater 27, the gas inlet of boiler 30 connects successively, boiler 30 vapour outlets are connected with the steam-in of contact drying machine 5 by pipeline, the condensed water outlet of contact drying machine 5 is connected with the admission port of boiler 30 by pipeline.The spray apertures diameter of preposition spray column 12 is micron order.The axle of worm conveyor 2 adopts hollow structure, and the two ends of tubular shaft are connected with outside water loop.Boiler 30 is grate stove.
Working process is as follows:
Send into contact drying machine 5 from the wet mud of outside sewage work through worm conveyor 2 and (can adopt suitable equipment, as hollow blade dryer) be dried, the condensed water that contact drying machine 5 produces is sent into boiler 30, the steam that boiler 30 produces is sent into contact drying machine 5 for dry, dried mud is delivered to outside through contact drying machine dewatered sludge material outlet 7 and is carried out subsequent disposal, the tail gas that drying process produces is delivered to preposition spray column 12 by exhaust fan 8 and carries out dedusting, because tail gas dustiness is limited, only need a small amount of spray water, spray water can be from outside, also can be from cooling tower 21, by spraying water valve 10 and the adjustable two-part ratio of cooling tower outlet valve 20 or only using a wherein road spray water.The spray drop diameter that preposition spray column 12 provides is micron order, and the per-cent that the tail gas enthalpy drop that spray causes accounts for the total enthalpy drop of vent gas treatment is between 0-10%, and this ratio realizes by the water yield of controlling spray pump.The preposition spray column 12 a small amount of sewage in bottom are sent into settling tank 13 and are precipitated, and a small amount of wet mud after precipitation is dried after being recycled to contact drying machine inlet capable 4 and mixing with wet mud via wet mud transfer roller 16 again.
The clean tail gas obtaining after preposition spray column 12 is processed enters interchanger 22 heating waters, the hot water obtaining adopts closed cycle, the steam air heater 27 that boiler 30 is sent on one tunnel is for the heating boiler 30 required air that burns, improve the thermo-efficiency of boiler 30, the wet mud of the interior preheating of tubular shaft of tubular shaft worm conveyor 2 is sent on another road, reduce the dry hear rate of contact drying machine 5, under the prerequisite of appropriate design, waste heat recovery rate is between 30-80%, and the ratio of two-way hot water flow can regulate by hot water by-pass valve 26.The a small amount of noncondensing gas that interchanger 22 is discharged is sent into boiler 30 by noncondensing gas blower fan 25 and is carried out burning disposal, realizes the innoxious of noncondensing gas, and wherein, boiler 30 is grate stove, and the incineration temperature that this grate stove provides is higher than 1250 DEG C.
The solidifying moisture of tail gas that dried tail gas produces through settling tank 13 and interchanger 22 is two-way, one road is delivered to cooling tower 21 and is carried out cooling, supplement cooling tower damage by water simultaneously, the solidifying water valve 17 of the tail gas of separately leading up to and tail air condensate water shoot 18 drain into outside water treatment plant and carry out respective handling, and the ratio of two portions water yield coagulates water valve 17 by tail gas and cooling tower water intaking valve 19 regulates.
In above-mentioned working process, the aperture relation of spray water valve 10, tail gas solidifying water valve 17, cooling tower water intaking valve 19 and cooling tower outlet valve 20 should be suitable, to ensure the equilibrium relationship of discharge.In the time of cooling tower water intaking valve 19 and cooling tower outlet valve 20 complete shut-down, cooling tower 21 is stopped using.
The described device of the utility model can be used for and the similarly processing of other high moisture material contact drying tail gas of sludge quality.
Claims (4)
1. a mud contact drying exhaust gas processing device, it is characterized in that: comprise worm conveyor (2), contact drying machine (5), exhaust fan (8), spray water inlet tube (9), spray water valve (10), spray pump (11), preposition spray column (12), settling tank (13), the first tail gas coagulates water pipe (14), tail gas water extraction pump (15), wet mud transfer roller (16), tail gas coagulates water valve (17), tail air condensate water shoot (18), cooling tower water intaking valve (19), cooling tower outlet valve (20), cooling tower (21), interchanger (22), hot water circulating pump (23), the second tail gas coagulates water pipe (24), noncondensing gas blower fan (25), hot water by-pass valve (26), steam air heater (27), gas inlet pipe (28), air blower (29), boiler (30), outside wet sludge conveyer is connected with helical feed machine inlet capable (1), worm conveyor discharge port (3) is connected with contact drying machine inlet capable (4), contact drying machine dewatered sludge discharge port (7) is connected with peripheral equipment, contact drying tail gas outlet (6) is by pipeline and exhaust fan (8), the blast inlet of preposition spray column (12) connects successively, spray water inlet tube (9) is by pipeline and spray water valve (10), spray pump (11), the water-in of preposition spray column (12) connects successively, the water outlet of preposition spray column (12) is connected by pipeline with settling tank (13) water inlet, the water port of settling tank (13) is connected with the solidifying water pipe (14) of the first tail gas, the first tail gas coagulate water pipe (14) with and the solidifying water pipe (24) of the second tail gas of being connected of interchanger (22) water port be connected with tail gas water extraction pump (15) after converging, tail gas water extraction pump (15) outlet point two-way, one tunnel and tail gas coagulate water valve (17), tail air condensate water shoot (18) connects successively, another road and cooling tower water intaking valve (19), the water-in of cooling tower (21) connects successively, settling tank (13) mud discharging mouth and wet mud transfer roller (16), contact drying machine inlet capable (4) connects successively, the water outlet of cooling tower (21) is by pipeline and cooling tower outlet valve (20), spray pump (11) connects successively, preposition spray column (12) pneumatic outlet is connected with interchanger (22) inlet mouth, interchanger (22) water outlet is connected with hot water circulating pump (23), hot water circulating pump (23) outlet is divided into two-way, one tunnel is connected with steam air heater (27) water-in, separately lead up to pipeline and hot water by-pass valve (26), the water inlet of worm conveyor (2) connects successively, the water outlet of worm conveyor (2) is connected with interchanger (22) water inlet by pipeline, the noncondensing gas of interchanger (22) exports by pipeline and noncondensing gas blower fan (25), the noncondensing gas inlet mouth of boiler (30) connects successively, extraneous air is by pipeline and gas inlet pipe (28), air blower (29), steam air heater (27), the gas inlet of boiler (30) connects successively, boiler (30) vapour outlet is connected with the steam-in of contact drying machine (5) by pipeline, the condensed water outlet of contact drying machine (5) is connected with the admission port of boiler (30) by pipeline.
2. mud contact drying exhaust gas processing device according to claim 1, is characterized in that: the spray apertures diameter of described preposition spray column (12) is micron order.
3. mud contact drying exhaust gas processing device according to claim 1, is characterized in that: the axle of described worm conveyor (2) adopts hollow structure, and the two ends of tubular shaft are connected with outside water loop.
4. mud contact drying exhaust gas processing device according to claim 1, is characterized in that: described boiler (30) is grate stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273861.2U CN203866170U (en) | 2014-05-26 | 2014-05-26 | Treatment device for sludge indirect dry tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273861.2U CN203866170U (en) | 2014-05-26 | 2014-05-26 | Treatment device for sludge indirect dry tail gas |
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| Publication Number | Publication Date |
|---|---|
| CN203866170U true CN203866170U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420273861.2U Expired - Fee Related CN203866170U (en) | 2014-05-26 | 2014-05-26 | Treatment device for sludge indirect dry tail gas |
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| Country | Link |
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| CN (1) | CN203866170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109011971A (en) * | 2018-08-06 | 2018-12-18 | 东华工程科技股份有限公司 | A kind of sludge drying tail gas processing equipment and method |
| CN109368981A (en) * | 2018-12-25 | 2019-02-22 | 烟台清泉实业有限公司 | A kind of sludge semi-dry processing system and processing method |
-
2014
- 2014-05-26 CN CN201420273861.2U patent/CN203866170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109011971A (en) * | 2018-08-06 | 2018-12-18 | 东华工程科技股份有限公司 | A kind of sludge drying tail gas processing equipment and method |
| CN109368981A (en) * | 2018-12-25 | 2019-02-22 | 烟台清泉实业有限公司 | A kind of sludge semi-dry processing system and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210526 |