CN101456656A - Filtrating and squeezing process and system for desulphurization wastewater - Google Patents
Filtrating and squeezing process and system for desulphurization wastewater Download PDFInfo
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- CN101456656A CN101456656A CNA2008101876915A CN200810187691A CN101456656A CN 101456656 A CN101456656 A CN 101456656A CN A2008101876915 A CNA2008101876915 A CN A2008101876915A CN 200810187691 A CN200810187691 A CN 200810187691A CN 101456656 A CN101456656 A CN 101456656A
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Abstract
The invention relates to a process and a system for filtering and squeezing wastewater. The system comprises a sludge inlet system, a sludge blow-drying system, a septum squeezing system, a filter cloth cleaning system and a matched electric control system. An outlet of a wastewater pool is communicated with a feed inlet of a feed pump through a feed conveying pipe; a discharge port of the feed pump is respectively communicated with feed inlets at two sides of a filter press through the feed conveying pipe and a feed valve; an outlet of an air compressor is communicated with an air inlet of an air storage tank; an air outlet of the air storage tank is respectively communicated with an air inlet of the filter press through an air pipe and a back flushing valve; the feed conveying pipe between the feed valve and the filter press is provided with a pressure sensor; the signal end of the pressure sensor is connected with the signal end of a PLC controller; an inlet of a press pump is connected with a water storage tank; and an outlet of the press pump passes through a squeezing pipeline and is connected with a main squeezing pipe of the filter press through a tee valve. The process and the system have the following advantages: 1, the process and the system have time conservation, high efficiency and low energy consumption; and 2, the process and the system can effectively squeeze out moisture remained in a filter cake, completely carry out back flushing on materials in a feeding pipeline to a material pool and achieve the aims of cleanness and smoothness of the pipeline.
Description
Technical field
The present invention relates to a kind of desulfurization wastewater filtration process and system, belong to waste water filtering technology and power plant desulfurization technology and make the field.
Background technology
China is maximum in the world coal production and country of consumption, and the ratio of coal in energy structure in China be up to 76.2%, the SO of China's discharging
290% all comes from fire coal.In recent years, China's acid rain pollution area enlarged rapidly, and aspects such as China farm crop, forest and HUMAN HEALTH are caused huge infringement, also became the important factor of restriction China economy, social sustainable development, therefore, and to SO
2The control of discharging is imperative.What use widely in the boiler smoke wet desulphurization method at present is Wingdale-gypsum method, and the waste water that limestone/gypsum method process produces is mainly from gypsum dehydration and cleaning system.The impurity that contains in the waste water mainly comprises suspended substance, oversaturated sulphite, vitriol and heavy metal, wherein much is the first kind pollutent of strict control in the national environmental standard.From the waste water of gypsum dehydration and cleaning system through neutralization, heavy metal precipitation, flocculation reaction, concentrate/clarification after, filter through pressure filter, the clear water after the filtration can discharge or reuse after reaching standard, filters the direct landfill of filter cake that the back produces.But because of the solids component in the desulfurization wastewater is difficult to be filtered, filter cloth is just blocked and lost efficacy through filtering the back several times, and the water ratio that filters back filter cake is higher, has influenced transportation.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, designed a kind of desulfurization wastewater and filtered squeezing process and system.
Design: to achieve these goals.1, pressure filter adopts the design of the two-way charging in two ends, is one of feature of the present invention.The purpose of doing like this is: because the cavity that pressure filter is superimposed and is formed by the polylith filter plate, its length is longer.If adopt unidirectional charging, not only the required pump pressure of charging is big, the energy consumption height, and also the even mud of the filter cake became uneven that causes the pressure filter rear and front end to form inevitably stops up easily, and the water ratio of filter cake is inhomogeneous; Adopt two-way charging, both can improve efficient, the required pump pressure of reduction charging of charging, can greatly cut down the consumption of energy again, the more important thing is that the thickness that makes filter cake can reach the thickness of design requirements and consistent relatively.2, adopt the pressurized air blowback system that the established filter cake of pressure filter is dried up, make simultaneously central duct unnecessary be not filtered design, be two of feature of the present invention.The purpose of doing like this is: the one, and utilize pressurized air that filter cake is dried up, compressed-air actuated pressure can reach 0.8MPa, can effectively part moisture content residual in the filter cake be squeezed out; The 2nd, pressurized air is blown to pressure filter central duct and feed pipe, makes the mud that is not filtered in central duct and the feed pipe return sewage lagoon, thereby avoids the phenomenon of fouling in the pipeline.3, cleaning the design of adopting the Pneumatic three-way ball valve in the filter cloth pipeline automatically, is three of feature of the present invention.The purpose of doing like this is: washing cloth device automatically in the process of washing cloth on the pressure filter of installation, is the process of mobile filter plate for some time, during this period of time in, be not need high pressure cleaning water to the filter plate flushing.If adopt two-way valve to control the logical and disconnected of the water that washes cloth, just need constantly start and stop to wash cloth pump and switch valve, influence the works better of pump motor that washes cloth, and the rising of the pressure of the water that washes cloth needs the regular hour again.And the employing T-valve, the pump that washes cloth is in opened condition always, when the device that washes cloth does not automatically need water, only needs T-valve is switched, and makes clear water return water tank and just can realize.4, adopting the autoclave diaphragm Technology in Pressing is four of feature of the present invention, the high pressure water that adopts the generation of squeezing water pump is as press media, enter in the membrane filter plate chamber of pressure filter, by heaving of diaphragm distortion, make the filter cake attenuation, thereby the moisture in the filter cake is discharged, reduced the water ratio of filter cake.
Technical scheme 1: desulfurization wastewater filters squeezing process and system, and it comprises that into mud system, mud dry up system, filter cloth cleaning system, diaphragm pressing system and supporting electric control system.Material pond outlet is communicated with the fresh feed pump opening for feed by carrier pipe, and the fresh feed pump discharge port passes through carrier pipe, feed valve and is communicated with the opening for feed of the both sides of pressure filter; Pneumatics press outlet is communicated with the gas-holder inlet mouth, and tracheae is passed through in the gas-holder air outlet, back-flushing valve is communicated with the pressure filter inlet mouth respectively, and carrier pipe is provided with pressure transmitter and pressure transmitter is controlled by PLC between feed valve and the pressure filter.The import of press pump is connected with water tank, and outlet is by the squeezing pipeline, through the total pipe coupling of the squeezing of T-valve and pressure filter.
Technical scheme 2: desulfurization wastewater filters squeezing process and system, and fresh feed pump simultaneously injects clear water discharging its inner filtration after from pond slurry bottom by carrier pipe from the both sides opening for feed of pressure filter with sewage; When the pressure of the pressure transmitter on the carrier pipe between feed valve and pressure filter reached set(ting)value, fresh feed pump quit work; Air compressor machine work makes the pressurized air in the gas-holder dry up the pressure filter filter cake by tracheae, back-flushing valve, and pressurized air arrives sewage lagoon with the mud blowback that is not filtered in the pressure filter central duct simultaneously; Start press pump, high pressure water, by respectively being in charge of in each diaphragm cavity that enters into membrane filter plate, is slowly heaved barrier film in T-valve enters the squeezing house steward of pressure filter by pipeline again, the squeezing filter cake, moisture in the slowly attenuation of the thickness of filter cake, filter cake is discharged, when the pressure of diaphragm pressing reaches set(ting)value, stop press pump, T-valve switches original position simultaneously, and the water in the diaphragm cavity turns back in the water tank by being in charge of house steward, and the pressure in the diaphragm cavity drops to normal pressure; Flushing pump work, with water tank by washing pipe, Pneumatic three-way ball valve to washing cloth device and filter plate washed.
The present invention compares with background technology, the one, the design of two-way charging is adopted at the pressure filter two ends, not only improve efficient, the required pump pressure of reduction charging of charging, can greatly cut down the consumption of energy again, the more important thing is that the thickness that makes filter cake can reach the thickness of design requirements and consistent relatively, reduces filter cake moisture content; The 2nd, adopt pressurized air to dry up, make mud to return the design of sewage lagoon to the pressure filter central duct, can effectively part moisture content residual in the filter cake be squeezed out, avoid the phenomenon of fouling in the pipeline; The 3rd, the water loop design of adopting in the filter cloth cleaning system, the fault of avoiding the motor frequent start-stop to produce is saved time.The 4th, adopt the autoclave diaphragm Technology in Pressing, the high pressure water that adopts the generation of squeezing water pump enters in the membrane filter plate chamber of pressure filter as press media, by heaving of diaphragm distortion, make the filter cake attenuation, thereby the moisture in the filter cake is discharged, reduced the water ratio of filter cake.
Description of drawings
Fig. 1 is the synoptic diagram that desulfurization wastewater filters squeezing process and system.
Embodiment
Embodiment 1: with reference to Fig. 1.Desulfurization wastewater filters squeezing process and system, and it comprises that into mud system, mud dry up system, filter cake squeezing system, filter cloth cleaning system and supporting electric control system.Flushing pump 1-1 water-in in the filter cloth cleaning system 1 is communicated with water tank 1-2 by washing pipe 1-8, washing return water pipe 1-4 is communicated with washing pipe 1-3 by Pneumatic three-way ball valve 1-5 and washs that return water pipe 1-4 water return outlet is communicated with water tank 1-2, washing pipe 1-3 water-in is communicated with flushing pump 1-1 water outlet, be connected by valve and water-supply pipe 1-9 between water tank 1-2 and washing pipe 1-3, Pneumatic three-way ball valve 1-5 is communicated with the device 1-7 that washes cloth by washing pipe 1-6.Sewage lagoon 2-1 outlet is communicated with fresh feed pump 2-3 by carrier pipe 2-11, and the opening for feed of fresh feed pump 2-3 is connected with carrier pipe 2-11 by ball valve, and the discharge port of sewage lagoon 2-1 is equipped with ball valve; The discharge port of fresh feed pump 2-3 is equipped with vacuum breaker, ball valve and tensimeter.。Fresh feed pump 2-3 and discharge port also connect and are communicated with the opening for feed 2-6 and the 2-14 of the both sides of pressure filter 2-7 respectively by carrier pipe 2-12, feed valve 2-4 and feed valve 2-5, and feed valve 2-4 and 2-5 are Pneumatic butterfly valve; On the tracheae between air compressor machine 3-1 and the gas-holder 3-2 vacuum breaker and ball valve are housed, ball valve and tensimeter are installed on the tracheae 3-3, on the gas-holder 3-2 tensimeter is housed, back-flushing valve 3-4 is a pneumatic ball valve, pneumatics press 3-1 outlet is communicated with gas-holder 3-2 inlet mouth, gas-holder 3-2 air outlet is by tracheae 3, back-flushing valve 3-4 is communicated with pressure filter 1-12 inlet mouth respectively, carrier pipe is provided with pressure transmitter 2-17 and pressure transmitter 2-17 signal end is connected with the signal end of PLC controller between feed valve 2-5 and the pressure filter 2-7, pressure filter 2-7 below is equipped with turnover panel and meets liquid device 2-8, pressure filter 2-7 one side is provided with water outlet 2-15 and is communicated with filtrate pipe 2-16, another then is equipped with filter plate pressing system 2-9, and filter plate pressing system 2-9 is controlled by Hydraulic Station 2-10.Filtrate outlet 2-15 discharges by filtrate pipe 2-16.The import of press pump 1-3 is connected with water tank 1-2, and outlet is by squeezing pipeline 1-4, the total pipe coupling of squeezing on T-valve 1-10 and pressure filter 2-7.The oscilaltion motor band brake of device 1-7 washes cloth; Turnover panel connects the motor band brake of liquid device 2-8.Embodiment 2: on the basis of embodiment 1, the turnover panel of filtrate outlet 2-15 by pressure filter 2-7 below connects the liquid device 2-8 water that will wash cloth and discharges.
Embodiment 3: on the basis of embodiment 1, desulfurization wastewater filters squeezing process and system, it is characterized in that: fresh feed pump 2-3 injects in it by carrier pipe 2-11 and 2-12 from the both sides opening for feed of pressure filter 2-7 sewage lagoon 2-1 slurry by pipeline simultaneously, owing on the pipeline pressure transmitter 2-17 is housed, the signal end of this transmitter is connected by the signal end of signal wire with the PLC controller, can set required pressure-controlling value easily and be provided with in the PLC controller that the pressure bound is set pilot circuit and have by the PLC control panel, therefore when the pressure of the pressure transmitter 2-17 on the carrier pipe between feed valve 2-5 and pressure filter 2-7 reaches setting low voltage value (0.8MPa), PLC controller command execution unit cuts off fresh feed pump 2-3 power supply, fresh feed pump 2-3 quits work, air compressor machine 3-1 work, make the pressurized air in the gas-holder 3-2 pass through tracheae 3, back-flushing valve 3-4 dries up pressure filter 2-7 filter cake, water in the mud is extruded through pressure filter liquid outlet 2-15 and filtrate pipe 2-16 discharge, and pressurized air is by tracheae 3 simultaneously, back-flushing valve 3-4 will be to the mud blowback that is not filtered unnecessary in pressure filter 2-7 central duct and the feed pipe to material pond 2-1.Start press pump 1-3, high pressure water by pipeline 1-4 in T-valve 1-10 enters the squeezing house steward of pressure filter, again by respectively being in charge of in each diaphragm cavity that enters into membrane filter plate, barrier film is slowly heaved, the squeezing filter cake, the slowly attenuation of the thickness of filter cake, moisture in the filter cake is discharged, when the pressure of diaphragm pressing reaches set(ting)value (1.5MPa), stop press pump 1-3, T-valve switches original position simultaneously, and the water in the diaphragm cavity turns back in the water tank by being in charge of house steward, and the pressure in the diaphragm cavity drops to normal pressure.Flushing pump 1-1 work, with water tank 1-2 by washing pipe 1-4 and 1-5, Pneumatic three-way ball valve 1-5 to washing cloth device 1-11 and filter plate washed.
What need understand is; though the foregoing description is to the present invention's detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of mentality of designing of the present invention; any combination, increase or modification that is no more than mentality of designing of the present invention all falls within the scope of protection of the present invention.
Claims (9)
1, a kind of desulfurization wastewater filters squeezing process and system, it comprises that into mud system, mud dry up system, filter cake squeezing system, filter cloth cleaning system and supporting electric control system, it is characterized in that: sludge sump bottom is communicated with fresh feed pump by sludge pipe, charging pump outlet parallel connection and pass through sludge pipe, feed valve and feed valve and be communicated with the mud import of the both sides of pressure filter respectively; The air compressor machine outlet is communicated with the gas-holder inlet mouth, and the gas-holder air outlet is communicated with a side opening for feed of pressure filter by tracheae, back-flushing valve; Advance between feed valve and the pressure filter that the mud pipeline is provided with pressure transmitter and pressure transmitter is controlled by the PLC Controlling System, the import of press pump is connected with water tank, and outlet is by squeezing pipeline, the total pipe coupling of the squeezing on T-valve and pressure filter.
2, desulfurization wastewater according to claim 1 filters squeezing process and system, it is characterized in that: the pressure filter below is equipped with turnover panel and connects liquid device, one side of pressure filter be provided with 4 water outlets and be communicated with filtrate pipe, another then is equipped with the filter plate hold-down gear, the filter plate hold-down gear is controlled by Hydraulic Station.
3, desulfurization wastewater according to claim 1 filters squeezing process and system, and it is characterized in that: stopping valve is all installed in the import of fresh feed pump, and stopping valve is equipped with in the bottom of sludge sump; The charging pump outlet is equipped with vacuum breaker, stopping valve and tensimeter.
4, desulfurization wastewater according to claim 1 filters squeezing process and system, and it is characterized in that: feed valve is Pneumatic butterfly valve or electric butterfly valve.
5, desulfurization wastewater according to claim 1 filters squeezing process and system, it is characterized in that: vacuum breaker and stopping valve are housed on the tracheae between air compressor machine and the gas-holder, stopping valve and tensimeter are installed on the tracheae, tensimeter is housed on the gas-holder, back-flushing valve is a pneumatic ball valve.
6, desulfurization wastewater according to claim 1 filters squeezing process and system, it is characterized in that: the flushing pump water-in in the filter cloth cleaning system is communicated with water tank by water pipe, the washing return water pipe is communicated with washing pipe by the Pneumatic three-way ball valve and washs that the return water pipe water return outlet is communicated with water tank, the washing pipe water-in is communicated with the flushing pump water outlet, and the Pneumatic three-way ball valve is communicated with the device that washes cloth by washing pipe.
7, desulfurization wastewater according to claim 1 filters squeezing and system, it is characterized in that: discharge by filtrate pipe after the clear water after the system handles is by 4 filtrate outlet bouts, the filter cloth rinse water connects the liquid device discharge by the turnover panel of pressure filter below.
8, filter squeezing process and systems according to claim 6 or 7 described desulfurization wastewaters, it is characterized in that: the motor that walks up and down of washing cloth in the filter cloth cleaning system has stopper; The motor that turnover panel connects liquid device has stopper.
9, a kind of desulfurization wastewater filters squeezing process and system, it is characterized in that: open feed valve, start fresh feed pump, waste water injects clear water after entrance pressure filter filters in it by carrier pipe simultaneously with the both sides opening for feed from pressure filter in the sludge sump and gathers laggard pipeline from liquid outlet and discharge; When the pressure of the pressure transmitter on the carrier pipe between feed valve and pressure filter reaches set(ting)value, fresh feed pump quits work, air compressor machine work, pressurized air enters in the gas-holder, when pressure reaches high-voltage value, air compressor machine quits work automatically, and when pressure drops to low voltage value, air compressor machine starts again automatically, so the pressure of gas-holder compressed air is maintained in certain stress level, pressurized air enters pressure filter by tracheae, back-flushing valve, and the unnecessary mud that is not filtered will turn back to the material pond from reverse flow valve in the pressure filter central duct; Start press pump, high pressure water, by respectively being in charge of in each diaphragm cavity that enters into membrane filter plate, is slowly heaved barrier film in T-valve enters the squeezing house steward of pressure filter by pipeline again, the squeezing filter cake, moisture in the slowly attenuation of the thickness of filter cake, filter cake is discharged, when the pressure of diaphragm pressing reaches set(ting)value, stop press pump, T-valve switches original position simultaneously, and the water in the diaphragm cavity turns back in the water tank by being in charge of house steward, and the pressure in the diaphragm cavity drops to normal pressure; Flushing pump work, with water tank by washing pipe, Pneumatic three-way ball valve to washing cloth device and filter plate washed.
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| CN 200810187691 CN101456656B (en) | 2008-12-30 | 2008-12-30 | Filtrating and squeezing process and system for desulphurization wastewater |
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| CN101456656B CN101456656B (en) | 2013-06-26 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102583943A (en) * | 2012-03-06 | 2012-07-18 | 光大环保科技发展（北京）有限公司 | Sewage plant sludge modifying and drying method and sludge processing system |
| CN103550966A (en) * | 2013-10-30 | 2014-02-05 | 广州市新之地环保产业有限公司 | Operation method of diaphragm pressure filter |
| CN105699259A (en) * | 2014-11-29 | 2016-06-22 | 上海北分仪器技术开发有限责任公司 | Online monitoring system for wet flue gas |
| CN107382011A (en) * | 2017-07-31 | 2017-11-24 | 杭州绿夏环境科技有限公司 | Sludge press filtration processing system and sludge press filtration processing method |
| CN108245950A (en) * | 2018-01-31 | 2018-07-06 | 荆门市格林美新材料有限公司 | A kind of press filtration piece-rate system and its separation method |
| CN108362351A (en) * | 2018-04-20 | 2018-08-03 | 张家港市清源水处理有限公司 | A kind of sludge modulation pond pressure-detecting device |
| CN109529464A (en) * | 2018-12-13 | 2019-03-29 | 西安航天华威化工生物工程有限公司 | The vertical plate and frame filter press process matched therewith device of gas squeezing |
| CN110763001A (en) * | 2018-07-26 | 2020-02-07 | 霍志飞 | Novel material dewatering equipment and method |
| CN112156510A (en) * | 2020-09-30 | 2021-01-01 | 株洲时代新材料科技股份有限公司 | Automatic operation control method and system for diaphragm type filter press |
| CN113185080A (en) * | 2020-12-31 | 2021-07-30 | 第一环保（深圳）股份有限公司 | Tympanic membrane filter pressing plate for magnetic-thermal diaphragm airflow sludge dewatering and drying integrated equipment |
| CN113813660A (en) * | 2021-09-30 | 2021-12-21 | 天津渤化永利化工股份有限公司 | System and method for comprehensively treating ammonia II mud of combined alkali production device |
| CN114288722A (en) * | 2021-12-31 | 2022-04-08 | 福建省乐普陶板制造有限公司 | Diaphragm squeezing process for processing raw materials of tiles and ceramic plates |
| CN114292086A (en) * | 2021-12-31 | 2022-04-08 | 福建省乐普陶板制造有限公司 | Process for manufacturing raw materials of brick, tile and ceramic plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE118464T1 (en) * | 1990-12-18 | 1995-03-15 | Thyssen Still Otto Gmbh | METHOD FOR THE EXPLOSION-PROOF DRYING OF SEWAGE SLUDGE. |
| CN1915869A (en) * | 2005-08-19 | 2007-02-21 | 力晶半导体股份有限公司 | Method for automatic rinsing filter cloth for sludge dewatering system, and press filtration type sludge dewatering machine |
| CN201139980Y (en) * | 2007-10-31 | 2008-10-29 | 山东圣泉化工股份有限公司 | Filter-pressing apparatus for processing biochemistry sewage sludge |
| CN201375844Y (en) * | 2008-12-30 | 2010-01-06 | 杭州兴源过滤机有限公司 | System for filtering and pressing desulphurized waste water |
-
2008
- 2008-12-30 CN CN 200810187691 patent/CN101456656B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102583943A (en) * | 2012-03-06 | 2012-07-18 | 光大环保科技发展（北京）有限公司 | Sewage plant sludge modifying and drying method and sludge processing system |
| CN103550966A (en) * | 2013-10-30 | 2014-02-05 | 广州市新之地环保产业有限公司 | Operation method of diaphragm pressure filter |
| CN103550966B (en) * | 2013-10-30 | 2015-11-18 | 广州市新之地环保产业有限公司 | A kind of method of operating of diaphragm filter press |
| CN105699259A (en) * | 2014-11-29 | 2016-06-22 | 上海北分仪器技术开发有限责任公司 | Online monitoring system for wet flue gas |
| CN107382011A (en) * | 2017-07-31 | 2017-11-24 | 杭州绿夏环境科技有限公司 | Sludge press filtration processing system and sludge press filtration processing method |
| CN108245950A (en) * | 2018-01-31 | 2018-07-06 | 荆门市格林美新材料有限公司 | A kind of press filtration piece-rate system and its separation method |
| CN108362351A (en) * | 2018-04-20 | 2018-08-03 | 张家港市清源水处理有限公司 | A kind of sludge modulation pond pressure-detecting device |
| CN108362351B (en) * | 2018-04-20 | 2023-10-03 | 张家港市清源水处理有限公司 | Pressure detection device for sludge modulating tank |
| CN110763001A (en) * | 2018-07-26 | 2020-02-07 | 霍志飞 | Novel material dewatering equipment and method |
| CN109529464A (en) * | 2018-12-13 | 2019-03-29 | 西安航天华威化工生物工程有限公司 | The vertical plate and frame filter press process matched therewith device of gas squeezing |
| CN112156510A (en) * | 2020-09-30 | 2021-01-01 | 株洲时代新材料科技股份有限公司 | Automatic operation control method and system for diaphragm type filter press |
| CN112156510B (en) * | 2020-09-30 | 2022-03-15 | 株洲时代新材料科技股份有限公司 | Automatic operation control method and system for diaphragm type filter press |
| CN113185080A (en) * | 2020-12-31 | 2021-07-30 | 第一环保（深圳）股份有限公司 | Tympanic membrane filter pressing plate for magnetic-thermal diaphragm airflow sludge dewatering and drying integrated equipment |
| CN113813660A (en) * | 2021-09-30 | 2021-12-21 | 天津渤化永利化工股份有限公司 | System and method for comprehensively treating ammonia II mud of combined alkali production device |
| CN114288722A (en) * | 2021-12-31 | 2022-04-08 | 福建省乐普陶板制造有限公司 | Diaphragm squeezing process for processing raw materials of tiles and ceramic plates |
| CN114292086A (en) * | 2021-12-31 | 2022-04-08 | 福建省乐普陶板制造有限公司 | Process for manufacturing raw materials of brick, tile and ceramic plate |
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Owner name: XINGYUAN ENVIRONMENT TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HANGZHOU XINGYUAN FILTER TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 311100, No. 1588, hope road, Hangzhou economic and Technological Development Zone, Yuhang District, Zhejiang, Hangzhou, Yuhang Patentee after: Xing Yuan environmental science and technology limited company Address before: 311113 Liangzhu Road, Liangzhu Town, Yuhang District, Zhejiang, Hangzhou, 10 Patentee before: Hangzhou Xingyuan Filter Technology Co., Ltd. |