CN102211845A - Sludge treatment and disposal system and method - Google Patents

Sludge treatment and disposal system and method Download PDF

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Publication number
CN102211845A
CN102211845A CN2010101417146A CN201010141714A CN102211845A CN 102211845 A CN102211845 A CN 102211845A CN 2010101417146 A CN2010101417146 A CN 2010101417146A CN 201010141714 A CN201010141714 A CN 201010141714A CN 102211845 A CN102211845 A CN 102211845A
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sludge
dewatered sludge
dust collector
mud
dewatered
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CN102211845B (en
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徐奎江
程日旺
申欢
张立
张世乾
梁梦晓
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Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd.
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Beijing Lucency Enviro Tech Co Ltd
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Abstract

The invention discloses a sludge treatment and disposal system, which is used for conveying dewatered sludge discharged by a sludge plant to a coal fired power plant to be combusted in a blended way after the dewatered sludge is dried. The sludge treatment and disposal system comprises a wet sludge storage bin, a sludge dryer, a sludge feeding pump, a cyclone dust collector, a dried sludge storage bin, dried sludge conveying equipment and a draught fan. The sludge feeding pump is respectively connected with the wet sludge storage bin and the sludge dryer. The cyclone dust collector is communicated with the sludge dryer so as to perform gas-solid separation on dried sludge and waste gas of the dryer. The dried sludge storage bin is connected with the cyclone dust collector so as to receive the separated dried sludge. The dried sludge conveying equipment is connected with the dried sludge storage bin and used for conveying the dried sludge to a coaling system of the coal fired power plant. The draught fan is connected with a waste gas hole of the cyclone dust collector. According to the sludge treatment and disposal system disclosed by the invention, the sludge treatment and disposal cost can be effectively reduced; vast high-quality resources can be saved; and a way of using waste to treat waste is realized. The invention further discloses a sludge treatment and disposal method.

Description

Sludge treatment disposal system and method
Technical field
The present invention relates to solid waste disposal category in the environmental protection field, specifically relate to a kind of treatment and disposal system of mud and adopt this system to carry out the method that sludge treatment is disposed.
Background technology
Mud is the inevitable outcome of municipal sewage plant's sewage disposal, enormous amount, and complicated component be difficult to handle, and the sludge disposal expense is also bigger.The purpose of sludge treatment is to reach minimizing, stabilization, innoxious and resource utilization, and the method for sludge treatment of comparative maturity has landfill, compost and burning etc.
Burning is the combustiblecomponents fully burning at high temperature that makes in the mud, finally becomes stable lime-ash.Burning method has and subtracts appearance, weight-loss ratio height, and processing speed is fast, and is innoxious more thorough, and waste heat can be used for advantages such as generating or heat supply.The main purpose of burning is an incinerating waste material as much as possible, makes the material that is burned innoxious and subtract appearance to greatest extent, and reduces new pollutent generation as far as possible, avoids causing secondary pollution.In recent years, burning method has adopted appropriate pretreatment technology and advanced incinerating method, has reached the self-sustaining of sludge heat energy, and can satisfy more and more stricter environmental requirement, has obtained a large amount of utilizations in developed country especially Japan and Europe.But sludge incineration need be built complete thermal source, drying facility, burning facility and vent gas treatment facility, also need replenish a large amount of high-grade fuels during operation, and capital construction and working cost are high, is difficult to direct implementation in China.
Mud multifuel combustion in existing boiler of power plant is a kind of implementation that sludge incineration is disposed, boiler of power plant is disposed waste and is belonged to the multifuel combustion category, have special law to be administered abroad, and the consumer waste incineration standard is quoted in China's not similarly legislation still more in the practice.The heat power plant of some provinces and cities of China has adopted the sludge disposal mode of mud and the generating of coal multifuel combustion, and this treatment and disposal mode economy and technical feasibility also receive much concern and dispute on.
The subject matter of arguement mainly concentrates on the water ratio of mud and adding rate has considerable influence to the thermo-efficiency of burning boiler, moisture percentage in sewage sludge is high more, calorific value is low more, hot contribution rate is more little, the mud of 80% water ratio is very low to the hot contribution rate of generating, directly the utilization rate of heat value of deodorization by incineration sewage sludge is extremely low, not only can not utilize organic calorific value in the mud, also need replenish a large amount of high-grade fuels as ignition dope.Dewatered sludge water ratio height (75%~85%), viscosity is big, be the viscous semi-fluid condition, for the injection that guarantees mud evenly, with the coal dust good mixing effect, the position of nozzle, form, quantity and material need be done deep research, and also need to pay attention to cleaning, replacing and the maintenance of nozzle in the routine maintenance.In addition, that adopts at present that dewatered sludge directly mixes burning mostly is the small-sized fluidized bed boiler, and furnace temperature is lower than large-scale coal-powder boiler, pollutent might occur and burn not exclusively, and the situation of secondary pollution takes place, and this also is directly to mix to burn the dewatered sludge problem demanding prompt solution.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, one object of the present invention is to propose a kind of mummification-mix the sludge treatment disposal system of burning, and this system utilizes the dewatered sludge of the waste heat mummification Sewage Plant of power-plant flue gas, and the mud after the mummification is sent into boiler of power plant and the mixed burning of mixing of coal dust.
Sending into the coal-burning power plant after the dewatered sludge mummification that the sludge treatment disposal system of first embodiment according to the invention, described sludge treatment disposal system are used for mud factory is discharged mixes and burns and comprise: the wet mud warehouse of the dewatered sludge that storage mud factory discharges; By the sludge drying device of flue gas with the dewatered sludge mummification; Advance dredge pump, described advance dredge pump link to each other with the sludge drying device with described wet mud warehouse respectively, so that the dewatered sludge in the described wet mud warehouse is sent in the described sludge drying device; Tornado dust collector, described tornado dust collector are communicated with described sludge drying device with dewatered sludge after the mummification and sludge drying device waste gas gas solid separation; Dewatered sludge warehouse, described dewatered sludge warehouse link to each other with described tornado dust collector to receive isolated dewatered sludge in the tornado dust collector; Dewatered sludge handling equipment, described dewatered sludge handling equipment link to each other with described dewatered sludge warehouse dewatered sludge is conveyed into the coaling system of coal-burning power plant; And induced draft fan, described induced draft fan links to each other with the waste gas outlet of described tornado dust collector and enters the flue gas system of coal-burning power plant so that handle with the waste gas with described tornado dust collector.
In addition, the sludge treatment disposal system of first embodiment according to the invention also has following additional technical feature:
Described wet mud warehouse is closed, and comprises the exhaust ventilation system.
Describedly advance dredge pump and adopt spiral pump or ram pump.
Described sludge drying device is that vane is strengthened the convection current sludge drier.
Described flue gas is to extract before the flue gas of coal-burning power plant enters air preheater, and flue-gas temperature is 300~400 °, and the extraction amount is less than 10% of the flue gas total amount that enters air preheater.
The induced draft fan flue gas system that enters the coal-burning power plant with the waste gas that tornado dust collector are discharged that is suitable for linking to each other with the electric precipitator of coal-burning power plant is handled.
Described dewatered sludge handling equipment is the dewatered sludge conveying and metering equipment of the mud after the measurable mummification.
Described sludge treatment disposal system further comprises the biological deodorizing unit of the foul smell that is used to handle wet mud warehouse and sludge drying workshop.
According to sludge treatment disposal system of the present invention, after utilizing the higher dewatered sludge of power plant flue gas heat drying water ratio, in boiler of power plant, directly mix burning, like this, can effectively reduce the cost of sludge treatment disposal and save a large amount of high-grade energies, realize the treatment of wastes with processes of wastes against one another.In addition, also do not need boiler of power plant is transformed, and can the operation and the smoke processing system of boiler of power plant do not had a negative impact.
Another object of the present invention is to propose a kind of mummification-mix sludge treatment method of disposal of burning.
Sludge treatment method of disposal according to second embodiment of the invention comprises the steps:
(1) dewatered sludge of mud factory is sent into wet mud warehouse;
(2) by advancing dredge pump dewatered sludge is sent into the sludge drying device, the waste heat that utilizes flue gas carries out mummification with dewatered sludge and obtains the mud of mummification;
(3) make the mud of mummification enter tornado dust collector and carry out gas solid separation with moisture eliminator waste gas;
(4) extract the waste gas of tornado dust collector out by induced draft fan, and waste gas is entered the power-plant flue gas treatment system handle;
(5) mud after the isolated mummification in the tornado dust collector being sent into the dewatered sludge warehouse keeps in; With
(6) dewatered sludge is sent into the coaling system of boiler of power plant, and entered the coal firing boiler burning after coal dust mixes.
Described sludge treatment method of disposal further comprises: the foul smell that produces during the mud that will wet storage and the sludge drying is through the unitary processing of biological deodorizing back discharging.
According to sludge treatment method of disposal of the present invention, utilize the dewatered sludge mummification that water ratio is high of the high-temperature flue gas waste heat of power plant to the lower dewatered sludge of water ratio, save a large amount of capital construction costs and high-grade energy with respect to the mummification mode of household heat source, can effectively reduce the sludge drying cost.Mix with boiler smoke before the wet flue gas that mummification produces sends back to power plant's electric precipitator by blower fan, utilize the original dedusting of power plant-desulphurization system purifying treatment, also can effectively reduce the environmental protection cost.Dewatered sludge proportion in propellant combination is lower than 5%, and is very little to the influence of boiler thermal output.In addition, dewatered sludge is the earthy solid, can directly enter power plant's mixed coal, coal mill system, and not need boiler body is transformed.
Sludge treatment disposal system and method according to the present invention, can under the situation that does not influence existing unit operation, adopt dewatered sludge to substitute the fuel of partial fuel coal as boiler of power plant, thereby reach the purpose that turns waste into wealth, started the win-win situation that not only solves problem of environmental pollution but also can reclaim biomass energy, can effectively solve municipal sludge and dispose difficult present situation.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the synoptic diagram of sludge treatment disposal system according to an embodiment of the invention; With
Fig. 2 is a sludge treatment method of disposal according to an embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " on ", close the orientation of indication such as D score or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
Below with reference to sludge treatment disposal system and the sludge treatment method of disposal of Fig. 1 description according to the embodiment of the invention.
As shown in Figure 1, sludge treatment disposal system according to an embodiment of the invention, send into the coal-burning power plant after the dewatered sludge mummification that is used for mud factory is discharged and mix burning, comprising: wet mud warehouse 1, sludge drying device 3, advance dredge pump 2, tornado dust collector 4, dewatered sludge warehouse 5, dewatered sludge handling equipment 6 and induced draft fan 8.
The dewatered sludge that storage mud factory discharges in the wet mud warehouse 1.In one embodiment of the invention, wet mud warehouse 1 is enclosed, and comprises the exhaust ventilation system, and its required storage volumes is 2~4 days a mud handling capacity.
With the dewatered sludge mummification, alternatively, sludge drying device 3 is that vane strengthens the convection current sludge drier to sludge drying device 3 by high-temperature flue gas, can be the water ratio of 70~85% sludge drying to 10~30% as required with water ratio.Wherein, high-temperature flue gas is to extract before the flue gas of coal-burning power plant enters air preheater, and flue-gas temperature is 300~400 °, and the extraction amount is less than 10% of the flue gas total amount that enters air preheater.
Advance dredge pump 2 and link to each other with sludge drying device 3 with wet mud warehouse 1 respectively, be used for the dewatered sludge of wet mud warehouse 1 is sent in the sludge drying device 3.Particularly, advance dredge pump 2 and adopt spiral pump or ram pump, wherein, the short or resistance hour employing spiral pump of transmitting range, long distance or resistance adopt ram pump when big.
Tornado dust collector 4 are communicated with sludge drying device 3, are used for dewatered sludge after the mummification and moisture eliminator waste gas gas solid separation.
Dewatered sludge warehouse 5 links to each other with tornado dust collector 4, in order to receive isolated dewatered sludge and temporary in the tornado dust collector 4.And dewatered sludge handling equipment 6 links to each other with dewatered sludge warehouse 5, is used for dewatered sludge is conveyed into the coaling system 9 of coal-burning power plant, and the blending ratio of mud and coal dust was less than 1: 20.Particularly, dewatered sludge handling equipment 6 is the dewatered sludge conveying and metering equipment of the mud after the measurable mummification, and alternatively, dewatered sludge conveying and metering equipment can adopt the belt metering outfit.
The exhaust outlet of tornado dust collector 4 links to each other with induced draft fan 8, and induced draft fan 8 is suitable for linking to each other with the electric precipitator of coal-burning power plant, the waste gas of discharging in the tornado dust collector 4 can be entered the flue gas system of coal-burning power plant so that handle.
In an example of the present invention, the sludge treatment disposal system also further comprises biological deodorizing unit 7, is used to handle the foul smell of wet mud warehouse 1 and 3 generations of sludge drying device.
According to sludge treatment disposal system of the present invention, after utilizing the higher dewatered sludge of power plant flue gas heat drying water ratio, in boiler of power plant, directly mix burning, like this, can effectively reduce the cost of sludge treatment disposal and save a large amount of high-grade energies, realize the treatment of wastes with processes of wastes against one another.In addition, also do not need boiler of power plant is transformed, and can the operation and the smoke processing system of boiler of power plant do not had a negative impact.
Below with reference to the sludge treatment method of disposal of Fig. 2 description according to the embodiment of the invention, described sludge treatment method of disposal can adopt above-mentioned sludge treatment disposal system to carry out, and comprises the steps:
(1) dewatered sludge of mud factory is sent into wet mud warehouse 1.
(2) by advancing dredge pump 2 dewatered sludge is sent into sludge drying device 3, the waste heat by flue gas carries out the mud that mummification obtains mummification with dewatered sludge.
(3) mud of mummification enters tornado dust collector 4 with moisture eliminator waste gas and carries out gas solid separation.
(4) waste gas of tornado dust collector 4 is extracted out by induced draft fan 8, is suitable for that waste gas is entered the power-plant flue gas treatment system and handles.
(5) mud after the isolated mummification in the tornado dust collector 4 being sent into dewatered sludge warehouse 5 keeps in.
(6) dewatered sludge is sent into the coaling system 9 of boiler of power plant, be mixed into the coal firing boiler burning with coal dust, in an example of the present invention, the blending ratio of mud and coal dust was less than 1: 20.
(7) will wet and be discharged in the atmosphere after the processing of foul smell that mud stores and the sludge drying workshop produces through biological deodorizing unit 7.
According to sludge treatment method of disposal of the present invention, the high-temperature flue gas waste heat that utilizes power plant is with the dewatered sludge mummification of water ratio height (75%~85%) dewatered sludge to water ratio lower (20%~30%), save a large amount of capital construction costs and high-grade energy with respect to the mummification mode of household heat source, can effectively reduce the sludge drying cost.Mix with boiler smoke before the wet flue gas that mummification produces sends back to power plant's electric precipitator by blower fan, utilize the original dedusting of power plant-desulphurization system purifying treatment, also can effectively reduce the environmental protection cost.Dewatered sludge proportion in propellant combination is lower than 5%, and is very little to the influence of boiler thermal output.In addition, dewatered sludge is the earthy solid, can directly enter power plant's mixed coal, coal mill system, and not need boiler body is transformed.Because adopt large-scale coal-powder boiler, furnace temperature is higher than 1350 ℃, therefore can effectively avoid the secondary pollution problem, the De dioxin that especially receives much concern can not generate under hot conditions substantially.
Sludge treatment disposal system and method according to the present invention, can under the situation that does not influence existing unit operation, adopt dewatered sludge to substitute the fuel of partial fuel coal as boiler of power plant, thereby reach the purpose that turns waste into wealth, started the win-win situation that not only solves problem of environmental pollution but also can reclaim biomass energy, can effectively solve municipal sludge and dispose difficult present situation.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. a sludge treatment disposal system is characterized in that, sends into the coal-burning power plant after the dewatered sludge mummification that described sludge treatment disposal system is used for mud factory is discharged and mixes burning, and comprise:
The wet mud warehouse of the dewatered sludge that storage mud factory discharges;
By the sludge drying device of flue gas with the dewatered sludge mummification;
Advance dredge pump, described advance dredge pump link to each other with the sludge drying device with described wet mud warehouse respectively, so that the dewatered sludge in the described wet mud warehouse is sent in the described sludge drying device;
Tornado dust collector, described tornado dust collector are communicated with described sludge drying device with dewatered sludge after the mummification and sludge drying device waste gas gas solid separation;
Dewatered sludge warehouse, described dewatered sludge warehouse link to each other with described tornado dust collector to receive isolated dewatered sludge in the tornado dust collector;
Dewatered sludge handling equipment, described dewatered sludge handling equipment link to each other with described dewatered sludge warehouse dewatered sludge is conveyed into the coaling system of coal-burning power plant; And
Induced draft fan, described induced draft fan link to each other with the waste gas outlet of described tornado dust collector and enter the flue gas system of coal-burning power plant so that handle with the waste gas with described tornado dust collector.
2. sludge treatment disposal system according to claim 1 is characterized in that, described wet mud warehouse is closed, and comprises the exhaust ventilation system.
3. sludge treatment disposal system according to claim 1 is characterized in that, describedly advances dredge pump and adopts spiral pump or ram pump.
4. sludge treatment disposal system according to claim 1 is characterized in that, described sludge drying device is that vane is strengthened the convection type sludge drier.
5. sludge treatment disposal system according to claim 1 is characterized in that, described flue gas is to extract before the flue gas of coal-burning power plant enters air preheater, and flue-gas temperature is 300~400 °, and the extraction amount is less than 10% of the flue gas total amount that enters air preheater.
6. sludge treatment disposal system according to claim 1 is characterized in that, the induced draft fan flue gas system that enters the coal-burning power plant with the waste gas that tornado dust collector are discharged that is suitable for linking to each other with the electric precipitator of coal-burning power plant is handled.
7. sludge treatment disposal system according to claim 1 is characterized in that, described dewatered sludge handling equipment is the dewatered sludge conveying and metering equipment of the mud after the measurable mummification.
8. sludge treatment disposal system according to claim 1 is characterized in that, further comprises the biological deodorizing unit that is used to handle the foul smell that wet mud warehouse and sludge drying device produce
9. a sludge treatment method of disposal is characterized in that, comprises the steps:
(1) dewatered sludge of mud factory is sent into wet mud warehouse;
(2) by advancing dredge pump dewatered sludge is sent into the sludge drying device, the waste heat that utilizes flue gas carries out mummification with dewatered sludge and obtains the mud of mummification;
(3) make the mud of mummification enter tornado dust collector and carry out gas solid separation with moisture eliminator waste gas;
(4) extract the waste gas of tornado dust collector out by induced draft fan, and waste gas is entered the power-plant flue gas treatment system handle;
(5) mud after the isolated mummification in the tornado dust collector being sent into the dewatered sludge warehouse keeps in; With
(6) dewatered sludge is sent into the coaling system of coal-fired plant boiler, and entered the coal firing boiler burning after coal dust mixes.
10. sludge treatment method of disposal according to claim 9, its feature exists, and further comprises:
The foul smell that produces during wet mud storage and the sludge drying is discharged by the unitary processing of biological deodorizing back.
CN 201010141714 2010-04-08 2010-04-08 Sludge treatment and disposal system and method Active CN102211845B (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674644A (en) * 2011-11-28 2012-09-19 北京朗新明环保科技有限公司 Sludge conditioning and dewatering treatment system and method
CN103435239A (en) * 2013-09-16 2013-12-11 中新能再生能源有限公司 Equipment capable of modifying and drying sludge into generative fuel and working process of equipment
CN104193133A (en) * 2014-05-23 2014-12-10 江苏双盈纺织科技有限公司 An inclined type printing and dyeing sludge drying treatment system
CN104315523A (en) * 2014-11-07 2015-01-28 西安建筑科技大学 Method for drying and burning sludge via cement plant kiln tail system
CN104355521A (en) * 2014-05-23 2015-02-18 江苏双盈纺织科技有限公司 Printing and dyeing sludge drying equipment
CN104891769A (en) * 2015-05-29 2015-09-09 常州振业机械设备有限公司 Sludge drying incineration system and method
CN105276603A (en) * 2015-10-20 2016-01-27 上海理工大学 Coal-sludge co-combustion system based on high-temperature smoke drying and pneumatic conveying
CN105318337A (en) * 2015-10-20 2016-02-10 上海理工大学 Coal-sludge co-combustion system based on high-temperature smoke drying and circulating fluidized bed boiler
CN106145599A (en) * 2016-08-25 2016-11-23 江苏菲力环保工程有限公司 A kind of full anhydration system of the mud combined with biomass fuel
CN108793665A (en) * 2017-04-28 2018-11-13 宝山钢铁股份有限公司 A kind of processing method of cold rolling oil-containing waste water biological sludge and application
CN113028418A (en) * 2021-03-30 2021-06-25 宁夏神耀科技有限责任公司 Treatment system and method for blending-burning gasified fine slag of circulating fluidized bed boiler
CN113074364A (en) * 2021-04-07 2021-07-06 宁夏神耀科技有限责任公司 System and method for treating fine slag generated by blending combustion and gasification of pulverized coal boiler
CN113739532A (en) * 2021-09-14 2021-12-03 西安热工研究院有限公司 Wet material drying system capable of efficiently utilizing waste heat of combustible waste gas

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CN201670791U (en) * 2010-04-08 2010-12-15 北京朗新明环保科技有限公司 Sludge treatment system

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CN101570388A (en) * 2009-05-26 2009-11-04 华电滕州新源热电有限公司 Harmless recycling treatment process for urban sludge
CN201670791U (en) * 2010-04-08 2010-12-15 北京朗新明环保科技有限公司 Sludge treatment system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674644A (en) * 2011-11-28 2012-09-19 北京朗新明环保科技有限公司 Sludge conditioning and dewatering treatment system and method
CN103435239A (en) * 2013-09-16 2013-12-11 中新能再生能源有限公司 Equipment capable of modifying and drying sludge into generative fuel and working process of equipment
CN103435239B (en) * 2013-09-16 2014-10-01 中新能再生能源有限公司 Equipment capable of modifying and drying sludge into generative fuel and working process of equipment
CN104193133A (en) * 2014-05-23 2014-12-10 江苏双盈纺织科技有限公司 An inclined type printing and dyeing sludge drying treatment system
CN104355521A (en) * 2014-05-23 2015-02-18 江苏双盈纺织科技有限公司 Printing and dyeing sludge drying equipment
CN104193133B (en) * 2014-05-23 2016-04-13 江苏双盈纺织科技有限公司 A kind of tilting printing and dyeing sludge drying and other treatment system
CN104315523A (en) * 2014-11-07 2015-01-28 西安建筑科技大学 Method for drying and burning sludge via cement plant kiln tail system
CN104891769A (en) * 2015-05-29 2015-09-09 常州振业机械设备有限公司 Sludge drying incineration system and method
CN105318337A (en) * 2015-10-20 2016-02-10 上海理工大学 Coal-sludge co-combustion system based on high-temperature smoke drying and circulating fluidized bed boiler
CN105276603A (en) * 2015-10-20 2016-01-27 上海理工大学 Coal-sludge co-combustion system based on high-temperature smoke drying and pneumatic conveying
CN105276603B (en) * 2015-10-20 2017-09-29 上海理工大学 Coal sludge mixture burning control system based on high temperature flue gas drying and Geldart-D particle
CN106145599A (en) * 2016-08-25 2016-11-23 江苏菲力环保工程有限公司 A kind of full anhydration system of the mud combined with biomass fuel
CN108793665A (en) * 2017-04-28 2018-11-13 宝山钢铁股份有限公司 A kind of processing method of cold rolling oil-containing waste water biological sludge and application
CN108793665B (en) * 2017-04-28 2021-07-16 宝山钢铁股份有限公司 Treatment method and application of biological sludge of cold rolling oily wastewater
CN113028418A (en) * 2021-03-30 2021-06-25 宁夏神耀科技有限责任公司 Treatment system and method for blending-burning gasified fine slag of circulating fluidized bed boiler
CN113074364A (en) * 2021-04-07 2021-07-06 宁夏神耀科技有限责任公司 System and method for treating fine slag generated by blending combustion and gasification of pulverized coal boiler
CN113739532A (en) * 2021-09-14 2021-12-03 西安热工研究院有限公司 Wet material drying system capable of efficiently utilizing waste heat of combustible waste gas

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