CN104445854A - Sludge dewatering method and equipment - Google Patents
Sludge dewatering method and equipment Download PDFInfo
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- CN104445854A CN104445854A CN201410602190.4A CN201410602190A CN104445854A CN 104445854 A CN104445854 A CN 104445854A CN 201410602190 A CN201410602190 A CN 201410602190A CN 104445854 A CN104445854 A CN 104445854A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The invention relates to a sludge dewatering method and equipment. The sludge dewatering method comprises the following processing steps: 1) grinding and milling straw and sawdust respectively, and mixing the ground straw and sawdust to obtain a conditioning agent; 2) mixing sludge and the conditioning agent in a stirrer and stirring for 30-60min; 3) dewatering the stirred sludge in a high-pressure membrane filter press to obtain a dewatered mud cake less than 60% in moisture content; 4) stacking the dewatered mud cake in a storage cabin for a duration to further dewater; and then 5) breaking the dewatered mud cake in a sludge breaker to obtain sludge particles which are 7-14mm in size. By conditioning the sludge by virtue of the straw and the sawdust, the sludge dewatering method disclosed by the invention can be used for realizing deep dewatering of the sludge; and the moisture content of the sludge is further reduced by virtue of natural fermentation, so as to meet various disposal requirements such as incineration, landfill and land utilization; and the sludge dewatering method disclosed by the invention provides conditions for further recycling.
Description
[technical field]
The present invention relates to a kind of mud dewatering method and equipment, be specifically related to a kind of mud dewatering method and equipment thereof, belong to environmental technology field.
[background technology]
Mud is the byproduct produced in sewage treatment process.Containing more organism in mud, thus there is certain calorific value, can be used for burning.Containing nutritive ingredients such as nitrogen phosphorus in mud, can be made into composite fertilizer and be back to soil.The material of construction such as mud also can be used for baking bricks, cement.But because moisture percentage in sewage sludge is high, volume is large, and cross shear is poor, again containing a large amount of bacteriums, easily blackout is smelly, and inconvenience is transported, and is out of favour in a lot of practical application.
The principle of sludge disposal is " minimizing, innoxious, resource utilization ", and wherein minimizing is prerequisite.The decrement of mud comprises minimizing volume (subtracting appearance) and reduces weight (loss of weight).Current, sewage work commonly uses polyacrylamide class chemical substance and nurses one's health mud, and adopts band press or whizzer to carry out sludge dewatering, and then these dewatered sludges are sent to landfill yard and carry out landfill.Conventional dewatering makes the water ratio of dewatered sludge to reach about 80%.According to the requirement to landfill mud in " urban wastewater treatment firm sludge disposal blended landfill shale " (GB/T 23485--2009), water ratio palpus≤60%; On November 26th, 2010; Environmental Protection Department general office issues " notices about strengthening the preventing and controlling of urban wastewater treatment firm sludge pollution " (ring is done [2010] No. 157) requires that mud to be transported factory circle to store by sewage work for the purpose of (namely not processing disposal) further, must by sludge dewatering to water ratio less than 50%.Therefore the mud safe disposal difficulty that water ratio is high, becomes the large problem that puzzlement sewage work normally runs.
In order to reduce the water ratio of dewatered sludge, deeply dehydrating sludge technology is arisen at the historic moment.Realize the deep dehydration of mud, make the water ratio of mud reach 60% even less than 50%, need to make a breakthrough on the conditioning technology of mud and the Technology in Pressing of mud.The Technology in Pressing of mud is embodied in the development of plate-and-frame filter press, as autoclave diaphragm plate-and-frame filter press, high pressure whole steel sheet plate-and-frame filter press, elasticity pressure filter etc.The conditioning of mud mainly contains two class technology, and a class makes amendment with iron trichloride and lime, and addition is about 30% of mud dry weight; Another kind of is take sludge solidifying agent as the inorganic conditioner of main component, and addition is not 5 ~ 20% of mud dry weight not etc.These sludge conditioning methods reduce making moisture percentage in sewage sludge, while namely volume reduces, due to the interpolation of chemical substance, make again mud weight increase.The inorganic salts material added reduces the calorific value of mud, is unfavorable for that thermal incineration utilizes; Increase the iron aluminium salt in mud, be also unfavorable for Land_use change.Although adopt these methods to make sewage water ratio reach national standard requirement, can accept for landfill place.But because mud body volume is large, landfill is still makeshift.
Therefore, for solving the problems of the technologies described above, necessary mud dewatering method and the equipment thereof providing a kind of innovation, to overcome described defect of the prior art.
[summary of the invention]
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of mud dewatering method, it adopts straw, wood chip to carry out sludge conditioning, realizes the deep dehydration of mud fast, and utilizes spontaneous fermentation that the water ratio of mud is reduced further.
Another object of the present invention is to provide a kind of device for dehydrating sladge waste.
For realizing above-mentioned first object, the technical scheme that the present invention takes is: a kind of mud dewatering method, and it comprises following processing step:
1), stalk and wood chip are carried out respectively pulverize, mill after mixing, use as amendment;
2), mud and amendment are mixed in stirrer, and stirs 30 ~ 60min;
3), the mud after stirring is squeezed into autoclave diaphragm pressure filter and dewaters, make mud form the dehydration girl cake of water ratio less than 60%;
4), dehydrated sludge cake is put into warehouse and stacks for some time, make moisture percentage in sewage sludge be down to less than 40%;
5), afterwards dehydrated sludge cake is sent into sludge crusher and be broken into the mud granule that particle diameter is 7 ~ 14 millimeters.
Mud dewatering method of the present invention is further: described step 1) in, straw crushing, be milled into particle diameter 300 ~ 1200 microns; Wood chip is pulverized, is milled as particle diameter 300 ~ 1200 microns; The weight ratio of stalk and wood chip is (1 ~ 3): 1.
Mud dewatering method of the present invention is further: described step 1) in, described stalk is specially wheat straw, corn stalk, paddy straw, wheat straw, cotton straws or sugarcane straw; Described wood chip is specially sawdust, the wood shavings powder of furniture factory converted timber.
Mud dewatering method of the present invention is further: described step 2) in, amendment accounts for 5 ~ 10% of mud weight; The rotating speed of stirrer is 30 ~ 120r/min.
Mud dewatering method of the present invention is further: described step 3) in, first conditioned mixing sludge is squeezed in autoclave diaphragm pressure filter by spiral pump, after autoclave diaphragm pressure filter pressure reaches 0.6MPa, charging is continued, until all mixing sludge enters in autoclave diaphragm pressure filter by High pressure feeding pump.
Mud dewatering method of the present invention is further: described step 3) in dehydrated sludge cake be delivered in storage bin by a rotary conveyor and stack.
Mud dewatering method of the present invention is further: described step 4) in, the time of stacking is 7 ~ 10 days.
Mud dewatering method of the present invention also can be: described warehouse is cylindrical structure, and its aspect ratio about 1: 1, is provided with the perforated pipe for oxygenation of ventilating bottom warehouse; Mud in described warehouse delivers to sludge crusher by a worm conveyor.
For realizing above-mentioned second object, the technical scheme that the present invention takes is: a kind of device for dehydrating sladge waste, and it comprises stirrer, spiral pump, High pressure feeding pump, autoclave diaphragm pressure filter, rotary conveyor, warehouse, worm conveyor and sludge crusher; Wherein, described stirrer is connected with autoclave diaphragm pressure filter respectively by spiral pump, High pressure feeding pump; Described rotary conveyor one end and the docking of autoclave diaphragm pressure filter, the top docking of the other end and warehouse; One is provided with for the perforated pipe of oxygenation of ventilating in the bottom of described warehouse; Described worm conveyor one end and warehouse docking, the other end and sludge crusher docking.
Compared with prior art, the present invention has following beneficial effect: the present invention adopts straw, wood chip to carry out sludge conditioning, realize the deep dehydration of mud fast, and utilize spontaneous fermentation that the water ratio of mud is reduced further, with multiple disposal requirements such as satisfied burning, landfill, Land_use change, for further recycling provides condition; Meanwhile, because moisture percentage in sewage sludge is low, pathogenic bacterium are few, odorless, and calorific value is high.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of device for dehydrating sladge waste of the present invention.
[embodiment]
Refer to shown in Figure of description 1, the present invention is a kind of device for dehydrating sladge waste, and it is made up of a few parts such as stirrer 1, spiral pump 2, High pressure feeding pump 3, autoclave diaphragm pressure filter 4, rotary conveyor 5, warehouse 6, worm conveyor 7 and sludge crushers 8.
Wherein, described stirrer 1 is connected with autoclave diaphragm pressure filter 4 respectively by spiral pump 2, High pressure feeding pump 3.This stirrer 1 is for mixing mud (water ratio 95 ~ 97%) and amendment (mixture of straw and wood chip) in stirrer 1.Described spiral pump 2, High pressure feeding pump 3 dewater for the mud after stirring is squeezed into autoclave diaphragm pressure filter 4.
Described rotary conveyor 5 one end and autoclave diaphragm pressure filter 4 dock, the docking of the top of the other end and warehouse 6, and it sends into warehouse 6 for the dehydrated sludge cake produced after being dewatered by autoclave diaphragm pressure filter 4.
In described warehouse 6 for storing dehydrated sludge cake, moisture percentage in sewage sludge is made to be down to less than 40%.Described warehouse 6 is cylindrical structure, its aspect ratio about 1: 1.The bottom of this warehouse 6 is provided with one for the perforated pipe 9 of oxygenation of ventilating, the spontaneous fermentation of oxygen accelerate sludge, and the heat produced, the temperature of mud can be made to rise to centigradetemperature 50 ~ 70 degree, and the water ratio of mud also because of hot blast take away, aerobic respiration and drop to 30 ~ 40%.
Described worm conveyor 7 one end and warehouse 6 dock, and the other end and sludge crusher 8 dock, and it carries out fragmentation for the dehydrated sludge cake in warehouse 6 is sent into sludge crusher 8.
Adopting aforesaid device to implement straw of the present invention and wood chip, to realize the concrete steps of deep sludge dewatering process as follows:
1), stalk and wood chip are carried out respectively pulverize, mill after mixing, use as amendment; Wherein, straw crushing, be milled into particle diameter 300 ~ 1200 microns; Wood chip is pulverized, is milled as particle diameter 300 ~ 1200 microns; The weight ratio of stalk and wood chip is (1 ~ 3): 1; Described stalk is specially wheat straw, corn stalk, paddy straw, wheat straw, cotton straws or sugarcane straw; Described wood chip is specially sawdust, the wood shavings powder of furniture factory converted timber.Employing straw, wood chip (wood powder) carry out sludge conditioning, are different from traditional organic polymer class (as positively charged ion polyacrylamide PAM); Be different from the amendment that lime conventional in current deep dehydration, iron aluminium salt or flyash, cement etc. reduce sludge calorific value; Though be also different from coal dust class sludge calorific value can be improved, be unfavorable for the amendment of follow-up lasting spontaneous fermentation.
2), mud and amendment are mixed in stirrer 1, and stirs 30 ~ 60min; Wherein, described amendment accounts for 5 ~ 10% of mud weight; The rotating speed of stirrer is 30 ~ 120r/min.
3), the mud after stirring is squeezed into autoclave diaphragm pressure filter 4 and dewaters, make mud form the dehydrated sludge cake of water ratio less than 60%; Wherein, first conditioned mixing sludge is squeezed in autoclave diaphragm pressure filter 4 by spiral pump 2, after autoclave diaphragm pressure filter 4 pressure reaches 0.6MPa, continues charging by High pressure feeding pump 3, until all mixing sludge enters in autoclave diaphragm pressure filter 4.Dehydrated sludge cake is delivered in warehouse 6 by a rotary conveyor defeated 5 and is stacked.
4), dehydrated sludge cake is put into warehouse 6 and stack for some time, make moisture percentage in sewage sludge be down to less than 40%; Wherein, the time of stacking is 7 ~ 10 days.Due to the heat that mud spontaneous fermentation produces in warehouse 6, the temperature of mud can be made to rise to centigradetemperature 50 ~ 70 degree, and the water ratio of mud also because of hot blast take away, aerobic respiration and drop to 30 ~ 40%.
5), afterwards dehydrated sludge cake is sent into sludge crusher 8 and be broken into the mud granule that particle diameter is 7 ~ 14 millimeters, so that further follow-up disposal.Specifically, the mud in described warehouse 6 delivers to sludge crusher 8 by a worm conveyor 7.
Mud after above-mentioned process is because water ratio is low, pathogenic bacterium are few, odorless is hidden, and calorific value is high, can be used for land reclamation, and power plant or cement mill are burned, landfill etc.
Be below an application example of mud dewatering method of the present invention:
Certain sewage work processes 100,000 tons of sanitary sewages day, 20 tons, daily output over dry mud, concentration basin is had in factory, moisture percentage in sewage sludge 97% after concentrated, adopt that polymer is positive carries out sludge conditioning from polyacrylamide, with the dehydration of band press, the mud cake about 100 producing water ratio about 80% after dehydration every day rams the loose soil with a stone-roller after sowing, and wherein the organic outlet accounting for 50% mud of mud dry weight is a great problem that this factory of puzzlement runs.
In the application of this Technology, the mud of water ratio 97% after concentrated, its volume every day 667 cubic metres, namely 28 cubes ms/h.First thickened sludge delivers to two useful volumes with spiral pump is that in the sludge conditioning tank of 10 cubic metres, (residence time is 43 minutes) fully mixes with straw powder, wood chip.For realizing this purpose, each conditioning tank adopts a stirrer being with frame paddle, stirs with the speed of per minute 60 turns.
Through repetition test, the ratio of straw powder and wood powder is 1: 1, and dosage is 7% of sludge dry solids, and namely dosage is each conditioning tank dosage per hour is about 30kg, amounts to 60kg/h, the consumption of every day about 1.5 tons.Straw powder and wood chip are the powdery substance of particle diameter 300 ~ 1200 microns.
Mud after modified, sends into two spiral pumps (every platform spiral pump flow is 14 cubes ms/h) in the autoclave diaphragm plate-and-frame filter press of two 500 square metres and carries out deep dehydration.High pressure sheet frame press filteration system is made up of pressure filter, hydraulic efficiency system, low pressure feed spiral pump, high pressure charging spiral pump, high-pressure hydraulic pump (diaphragm pressing pump), pressurized air blowback system.Mixing sludge is first by the low pressure screw pump (Q=50m of high flow capacity, low lift
3/ h, pressure P=0.6MPa, gas-distributing motor power 15kW, frequency conversion is adjustable) toward charging in plate-and-frame filter press, after in pressure filter, pressure reaches 0.6MPa, system switches, by low flow, high-lift High pressure feeding pump (Q=20m
3/ h, pressure P=1.2MPa, gas-distributing motor power 15kW, frequency conversion is adjustable) and continue charging, until all mixing sludge enters in plate-and-frame filter press, this fill process approximately needs 1.5h; Stop after mud, by diaphragm pressing pump (Q=10m
3/ h, pressure P=2.0MPa, gas-distributing motor 11kW, frequency conversion is adjustable) open work, constantly in diaphragm plate, inject high pressure tap water (squeeze pressure reaches 2.0MPa), a drum pressure filter barrier film carries out press dewatering to the mud in filter chamber, and this expressing process approximately needs 1.5h; After having squeezed, run pneupress system, the residual mud in mud pipe and the filtrate in film chamber are entered to pressure filter center and carries out blowback and wash; Finally, open filter plate discharging, be delivered to storage in warehouse of sludge by worm conveyor or rotary conveyor, stacked.Mud after modified, after the press filtration of autoclave diaphragm board and frame machine, can make the water ratio of mud be down to less than 60%, and mud, in block, firmly can be held with hand.
Block mud every day after dehydration about 50 tons, namely about 2.1 tons per hour, rotary conveyor is adopted to deliver to warehouse of sludge.Warehouse of sludge diameter is 8.6 meters, high 8.6 meters, useful volume about 500 side's rice.The sewage sludge storage time is 10 days.Warehouse adopts the on-the-spot coiling of glass reinforced plastic, and bottom is covered with boring aeration pipe, and Root's blower provides ventilation by boring aeration pipe.The value of wind supply quantity is every 1kg VSS oxygen requirement is the O2 of 0.1kg, and the coefficient of oxygen utilization of perforated pipe is 6%.Adopt 2 roots blowers in actual practicality, air quantity is 40m
3/ min, blast is 9 meters, joins that to detest power of motor be 55kw.The compressed air temperature provided due to gas blower is higher, the temperature of mud can be promoted, promote bacterial classification aerobic respiration, and the moisture taken away in mud, due to bacterial classification spontaneous fermentation in domestic sludge, air heating, the mechanism actings in conjunction such as moisture stripping, the water ratio of dewatered sludge can be made to be reduced to 30 ~ 40% further, and temperature increase is to 50 ~ 70 degrees Celsius.
Mud delivers to sludge crusher from warehouse through worm conveyor, is become by sludge crushing particle diameter to be the mud granule of 7 ~ 14 millimeters, so that further follow-up disposal.
Above embodiment is only the preferred embodiment of this creation, and not in order to limit this creation, any amendment made within all spirit in this creation and principle, equivalent replacement, improvement etc., within the protection domain that all should be included in this creation.
Claims (9)
1. a mud dewatering method, is characterized in that: comprise following processing step:
1), by stalk and and wood chip carry out respectively pulverizing, mill after mixing, use as amendment;
2), mud and amendment are mixed in stirrer, and stirs 30 ~ 60min;
3), the mud after stirring is squeezed into autoclave diaphragm pressure filter and dewaters, make mud form the dehydrated sludge cake of water ratio less than 60%;
4), dehydrated sludge cake is put into warehouse and stacks for some time, make moisture percentage in sewage sludge be down to less than 40%;
5), afterwards dehydrated sludge cake is sent into sludge crusher and be broken into the mud granule that particle diameter is 7 ~ 14 millimeters.
2. mud dewatering method as claimed in claim 1, is characterized in that: described step 1) in, straw crushing, be milled into particle diameter 300 ~ 1200 microns; Wood chip is pulverized, is milled as particle diameter 300 ~ 1200 microns; The weight ratio of stalk and wood chip is (1 ~ 3): 1.
3. mud dewatering method as claimed in claim 2, is characterized in that: described step 1) in, described stalk is specially wheat straw, corn stalk, paddy straw, wheat straw, cotton straws or sugarcane straw; Described wood chip is specially sawdust, the wood shavings powder of furniture factory converted timber.
4. mud dewatering method as claimed in claim 1, is characterized in that: described step 2) in, amendment accounts for 5 ~ 10% of mud weight; The rotating speed of stirrer is 30 ~ 120r/min.
5. mud dewatering method as claimed in claim 4, it is characterized in that: described step 2) in, first conditioned mixing sludge is squeezed in autoclave diaphragm pressure filter by spiral pump, after autoclave diaphragm pressure filter pressure reaches 0.6MPa, charging is continued, until all mixing sludge enters in autoclave diaphragm pressure filter by High pressure feeding pump.
6. mud dewatering method as claimed in claim 1, is characterized in that: described step 3) in dehydrated sludge cake be delivered in storage bin by a rotary conveyor and stack.
7. mud dewatering method as claimed in claim 1, is characterized in that: described step 4) in, the time of stacking is 7 ~ 10 days.
8. mud dewatering method as claimed in claim 1, it is characterized in that: described warehouse is cylindrical structure, its aspect ratio about 1: 1, is provided with the perforated pipe for oxygenation of ventilating bottom warehouse; Mud in described warehouse delivers to sludge crusher by a worm conveyor.
9. a device for dehydrating sladge waste, is characterized in that: comprise stirrer, spiral pump, High pressure feeding pump, autoclave diaphragm pressure filter, rotary conveyor, warehouse, worm conveyor and sludge crusher; Wherein, described stirrer is connected with autoclave diaphragm pressure filter respectively by spiral pump, High pressure feeding pump; Described rotary conveyor one end and the docking of autoclave diaphragm pressure filter, the top docking of the other end and warehouse; One is provided with for the perforated pipe of oxygenation of ventilating in the bottom of described warehouse; Described worm conveyor one end and warehouse docking, the other end and sludge crusher docking.
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| CN201410602190.4A CN104445854A (en) | 2014-10-25 | 2014-10-25 | Sludge dewatering method and equipment |
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| CN201410602190.4A CN104445854A (en) | 2014-10-25 | 2014-10-25 | Sludge dewatering method and equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977074A (en) * | 2017-04-28 | 2017-07-25 | 成都信息工程大学 | A kind of fast dewatering conditioner and its preparation method and application |
| CN108476916A (en) * | 2018-04-02 | 2018-09-04 | 房海宏 | A kind of coastal sludge improvement recycling technique |
| CN108996878A (en) * | 2018-10-15 | 2018-12-14 | 哈尔滨商业大学 | Sludge freeze thawing dewatering system and method based on solar semiconductor refrigeration heating technology |
| CN109179953A (en) * | 2018-10-22 | 2019-01-11 | 湖北态科工业过滤系统设备有限公司 | A kind of high-pressure pressure filter integrated system |
| CN111153579A (en) * | 2018-11-07 | 2020-05-15 | 张晓春 | Sludge heatless drying method and device system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254997A (en) * | 2008-03-28 | 2008-09-03 | 华章电气（桐乡）有限公司 | Sludge denuding dehydrolyzing method |
| CN202118923U (en) * | 2011-06-07 | 2012-01-18 | 创冠环保(中国)有限公司 | Sludge drying incineration system based on waste fire grate furnace incineration |
| CN203625222U (en) * | 2013-12-24 | 2014-06-04 | 华新环境工程有限公司 | Deep dehydration system for sludge |
-
2014
- 2014-10-25 CN CN201410602190.4A patent/CN104445854A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254997A (en) * | 2008-03-28 | 2008-09-03 | 华章电气（桐乡）有限公司 | Sludge denuding dehydrolyzing method |
| CN202118923U (en) * | 2011-06-07 | 2012-01-18 | 创冠环保(中国)有限公司 | Sludge drying incineration system based on waste fire grate furnace incineration |
| CN203625222U (en) * | 2013-12-24 | 2014-06-04 | 华新环境工程有限公司 | Deep dehydration system for sludge |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977074A (en) * | 2017-04-28 | 2017-07-25 | 成都信息工程大学 | A kind of fast dewatering conditioner and its preparation method and application |
| CN108476916A (en) * | 2018-04-02 | 2018-09-04 | 房海宏 | A kind of coastal sludge improvement recycling technique |
| CN108996878A (en) * | 2018-10-15 | 2018-12-14 | 哈尔滨商业大学 | Sludge freeze thawing dewatering system and method based on solar semiconductor refrigeration heating technology |
| CN109179953A (en) * | 2018-10-22 | 2019-01-11 | 湖北态科工业过滤系统设备有限公司 | A kind of high-pressure pressure filter integrated system |
| CN111153579A (en) * | 2018-11-07 | 2020-05-15 | 张晓春 | Sludge heatless drying method and device system thereof |
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Application publication date: 20150325 |