CN101455915A - Desulfurization waste-water high-pressure filteration no-leakage system and technique - Google Patents
Desulfurization waste-water high-pressure filteration no-leakage system and technique Download PDFInfo
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- CN101455915A CN101455915A CNA2008101876898A CN200810187689A CN101455915A CN 101455915 A CN101455915 A CN 101455915A CN A2008101876898 A CNA2008101876898 A CN A2008101876898A CN 200810187689 A CN200810187689 A CN 200810187689A CN 101455915 A CN101455915 A CN 101455915A
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Abstract
The present invention relates to a system and a process for high-pressure filter without leakage of devulcanized waste water. The system comprises a washing device, a filter press and a PLC controller. A material pool outlet is communicated with material inlets of a low pressure material inlet pump and a high pressure material inlet pump through a material conveying pipe, material outlets of the low pressure material inlet pump and the high pressure material inlet pump are connected in parallel and are communicated with material inlets on both sides of the filter press respectively through the material conveying pipe, a material inlet valve and a material outlet valve, and a neutralization reaction kettle is communicated with a water storage pot through a pipeline. An outlet of an air pressure compressor is communicated with a gas inlet of a gas storage pot, and the gas outlet of the gas storage pot is communicated with a gas inlet of a dissepiment squeezing device respectively through a gas pipe and a blowback valve. A pressure sensor is arranged on the material conveying pipe between the material inlet valve and the filter press, and the signal end of the pressure sensor is connected with the signal end of the PLC controller and the signal output end of the PLC controller is connected with the signal end of a frequency converter.
Description
Technical field
The slurry that is produced when the present invention relates to a kind of can the generating in the thermal power plant effectively carries out desulfurization waste-water high-pressure filteration no-leakage system and the technology that desulfurization is handled, and belongs to thermal power plant special sizing agent list pump desulfurization treatment system and sulfur removal technology and makes the field.
Background technology
The thermal power plant is in generating, its steam boiler coal combustion has produced in a large amount of discarded slurries and has contained a large amount of sulphur, as do not look into these slurries that contain sulphur are carried out the desulfurization processing, not only directly danger is coerced ecological environment, and permeates the ground direct polluted source.But, the objective reality actual conditions are at present: the thermal power plant adopts pipeline to be transported in the material pond of appointment after often the steam boiler coal combustion having been produced a large amount of discarded slurry dilute with waters, sulphurous water in its slurry permeates the ground by the face of land, direct polluted underground water source, do solid powder and then act on construction materials such as brickmaking, cause secondary environmental pollution.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, when having designed a kind of can the generating in the thermal power plant, its steam boiler coal combustion has produced a large amount of discarded slurries and has carried out desulfurization waste-water high-pressure filteration no-leakage system and the technology that desulfurization is handled.
Design: to achieve these goals.1, the design of two-way charging is adopted at the filter press two ends, is one of feature of the present invention.The purpose of doing like this is: because filter press is to be made of the stack of polylith membrane filter plate, its thickness is very thick, if adopt unidirectional charging, not only the required pump pressure of charging is big, the energy consumption height, and cause the formed filter cake of the membrane filter plate that is arranged in feeding part thick inevitably, thin away from the formed filter cake of membrane filter plate of charging aperture part, both took a lot of work, time-consuming, efficient is low again, energy consumption is high, processing cost is high; 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 designing requirement and consistent relatively, has improved the efficient and the cost of desulfurization.2, adopt back-flushing valve to filter press carry out twice pressing, to the design that the material in the feed pipe is cleared up Hui Chi, be two of feature of the present invention.The purpose of doing like this is: the one, and utilize back-flushing valve to inject gases at high pressure in the filter press and material carries out twice pressing, because the pressure of gases at high pressure can reach about eight kilograms, therefore after gases at high pressure act on single pressing on the filter cake time, when it can push out with moisture content residual in the filter cake effectively, sub-high pressure gas after its step-down by feed pipe and with the material blowback in the feed pipe to the material pond, thereby reach cleanser conduit, avoid the phenomenon of inner-walls of duct fouling, guaranteed the unimpeded of pipeline.3, two reduction of fractions to a common denominators of Pneumatic three-way ball valve not with wash return pipe and washing pipe is communicated with, threeway and the design that is communicated with the device that washes cloth, be three of feature of the present invention.The purpose of doing like this is: because the washing return pipe is communicated with washing pipe by the Pneumatic three-way ball valve and washs that the return pipe water return outlet is communicated with water tank, the washing pipe water inlet is communicated with the flushing pump delivery port, the Pneumatic three-way ball valve is communicated with the device that washes cloth by washing pipe, therefore both can clean filter plate by the device that washes cloth easily, can return water tank by superfluous water again, realize water-saving purpose.4, filtrate (liquid is communicated with the import of neutralization reaction still by filtrate pipe, and the neutralization reaction still is four of a feature of the present invention by the design that pipeline is communicated with water tank.The purpose of doing like this is: the filtrate after handling through the neutralization reaction still, be back to water tank, and both can clean filter plate, avoided the waste of water resource again, help environmental protection simultaneously.
Technical scheme 1: desulfurization waste-water high-pressure filteration no-leakage system, it comprises cleaning device, filter press and PLC controller, the outlet of material pond is communicated with by the charging aperture of conveying pipeline with low pressure feed pump and high pressure charging pump, the discharging opening of low pressure feed pump and high pressure charging pump also connects and is communicated with the charging aperture of the both sides of filter press respectively by conveying pipeline, inlet valve and inlet valve, filtrate (liquid is communicated with the import of neutralization reaction still by filtrate pipe, and the neutralization reaction still is communicated with water tank by pipeline; The outlet of pneumatics press is communicated with the air accumulator air inlet, the air accumulator gas outlet is communicated with diaphragm pressing device air inlet respectively by tracheae, back-flushing valve, conveying pipeline is provided with pressure sensor and the pressure sensor signal end is connected with the signal end of PLC controller between inlet valve and the filter press, and the signal output part of PLC controller is connected with the signal end of frequency converter.
Technical scheme 2: thermal power plant special sizing agent desulfurization treatment process, PLC controller instruction high pressure charging air pump inoperative, instruction low pressure feed pump respectively from the both sides charging aperture of filter press simultaneously injects it in by the big flow low pressure of conveying pipeline material pond slurry by pipeline, when the pressure of the pressure sensor on the conveying pipeline between inlet valve and filter press reaches the setting low voltage value, the low pressure feed pump quits work, PLC controller instruction high pressure charging pump work, the high pressure charging pump respectively from the both sides charging aperture of filter press simultaneously injects it in by conveying pipeline high speed low discharge material pond slurry by pipeline, when the pressure of the pressure sensor on the conveying pipeline between inlet valve and filter press reaches the setting high-voltage value, PLC controller instruction high pressure charging pump quits work, air compressor machine work, force the air accumulator high pressure air to pass through tracheae, back-flushing valve carries out the blowback squeezing to diaphragm pressing device filter cake, water in the slurry extruded enter the neutralization reaction still through diaphragm pressing device delivery port and filtrate pipe and carry out neutralisation treatment, the water of handling through the neutralization reaction still is communicated with the circulation of formation nothing leakage water by pipeline with water tank, high pressure air passes through tracheae, back-flushing valve will be to the slurry blowback in the diaphragm pressing device filling tube to the material pond, flushing pump work is passed through washing pipe with water tank, the Pneumatic three-way ball valve is 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 filter press two ends, not only the saving of labor, save time, efficient height, processing cost be low, and can greatly improve slurry charging efficient, reduced required pump pressure and the energy consumption of charging; The 2nd, the design of adopting back-flushing valve that filter press is carried out twice pressing, the material in the feed pipe cleared up Hui Chi, not only effectively moisture content residual in the filter cake is extruded, and can be thoroughly with the material blowback in the feed pipe to the material pond, reach duct cleaning, unimpeded, avoided the purpose of inner-walls of duct fouling; The 3rd, the design of water loop in the cleaning device has realized the purpose that water resource is saved.
Description of drawings
Fig. 1 is the schematic diagram of desulfurization waste-water high-pressure filteration no-leakage system.
The specific embodiment
Embodiment 1: with reference to Fig. 1.Desulfurization waste-water high-pressure filteration no-leakage system, it comprises cleaning device 1, filter press 2-7 and PLC controller, flushing pump 1-1 water inlet in the cleaning device 1 is communicated with water tank 1-2 by washing pipe 1-8, washing return pipe 1-4 is communicated with washing pipe 1-3 by Pneumatic three-way ball valve 1-5 and washs that return pipe 1-4 water return outlet is communicated with water tank 1-2, washing pipe 1-3 water inlet is communicated with flushing pump 1-1 delivery port, be connected by valve and feed 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 1-6.2-1 outlet in material pond is communicated with the charging aperture of low pressure feed pump 2-3 and high pressure charging pump 2-2 by conveying pipeline 2-11, the charging aperture of low pressure feed pump 2-3 and high pressure charging pump 2-2 is respectively by ball valve and conveying pipeline 2-11 and connect, and the discharging opening of material pond 2-1 is equipped with ball valve; The discharging opening of low pressure feed pump 2-3 and high pressure charging pump 2-2 is equipped with check-valves, ball valve and pressure indicator respectively.The operating frequency of high pressure charging pump 2-2 is controlled by frequency converter 2-13 and is controlled by the PLC system.The discharging opening of low pressure feed pump 2-3 and high pressure charging pump 2-2 also connects and is communicated with the charging aperture 2-6 and the 2-14 of the both sides of filter press 2-7 respectively by conveying pipeline 2-12, inlet valve 2-4 and inlet valve 2-5, neutralization reaction still 2-18 is communicated with water tank 1-2 by pipeline, and inlet valve 2-4 and 2-5 are Pneumatic butterfly valve; On the tracheae between air compressor machine 3-1 and the air accumulator 3-2 check-valves and ball valve are housed, ball valve and pressure indicator are installed on the tracheae 3-3, on the air accumulator 3-2 pressure indicator is housed, back-flushing valve 3-4 is a pneumatic ball valve, pneumatics press 3-1 outlet is communicated with air accumulator 3-2 air inlet, air accumulator 3-2 gas outlet is by tracheae 3, back-flushing valve 3-4 is communicated with diaphragm pressing device 1-12 air inlet respectively, conveying pipeline is provided with pressure sensor 2-17 and pressure sensor 2-17 signal end is connected with the signal end of PLC controller between inlet valve 2-5 and the filter press 2-7, the signal output part of PLC controller is connected with the signal end of frequency converter 2-13, filter press 2-7 below is equipped with panel turnover device 2-8, filter press 2-7 one side is provided with delivery port 2-15 and is communicated with filtrate pipe 2-16, another then is equipped with plate pulling device 2-9, and plate pulling device 2-9 is controlled by Hydraulic Station 2-10.Filtrate (liquid 2-15 is communicated with neutralization reaction still 2-18 import by filtrate pipe 2-16, or the panel turnover device 2-8 by filter press 2-7 below be transported to neutralization reaction still 2-18 and pass through in sulphurous water solution after discharge.Device 1-7 band brake washes cloth; Panel turnover device 2-8 band brake.
Embodiment 2: on the basis of embodiment 1, filtrate (liquid 2-15 is transported to filtrate in neutralization reaction still 2-18 and the process by the panel turnover device 2-8 below the filter press 2-7 and discharges behind the sulphurous water solution.
Embodiment 3: on the basis of embodiment 1, thermal power plant special sizing agent desulfurization treatment process, PLC controller instruction high pressure charging pump 2-2 does not work, instruction low pressure feed pump 2-3 respectively from the both sides charging aperture of filter press 2-7 simultaneously injects it in by conveying pipeline 2-11 and the big flow low pressure of 2-12 material pond 2-1 slurry by pipeline, owing on the pipeline pressure sensor 2-17 is housed, the signal end of this sensor is connected by the signal end of holding 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 control circuit and have by the PLC control flow, therefore when the pressure of the pressure sensor 2-17 on the conveying pipeline between inlet valve 2-5 and filter press 2-7 reaches setting low voltage value (5Kg), PLC controller command execution unit cutoff low feed pump 2-3 power supply, low pressure feed pump 2-3 quits work, PLC controller instruction high pressure charging pump 2-2 work, high pressure charging pump 2-2 respectively from the both sides charging aperture of filter press 2-7 simultaneously injects it in by conveying pipeline 2-11 and 2-12 high speed low discharge material pond 2-1 slurry by pipeline, when the pressure of the pressure sensor 2-17 on the conveying pipeline between inlet valve 2-5 and filter press 2-7 reaches setting high-voltage value (15Kg), PLC controller instruction high pressure charging pump 2-2 quits work, air compressor machine 3-1 work, force air accumulator 3-2 high pressure air by tracheae 3, back-flushing valve 3-4 carries out the blowback squeezing to diaphragm pressing device 2-7 filter cake, water in the slurry extruded enter the neutralization reaction still through diaphragm pressing device delivery port 2-15 and filtrate pipe 2-16 and carry out neutralisation treatment, the water of handling through neutralization reaction still 2-18 is communicated with the circulation of formation nothing leakage water by pipeline with water tank 1-2, high pressure air is by tracheae 3, back-flushing valve 3-4 will be to the slurry blowback in the diaphragm pressing device 2-7 filling tube to material pond 2-1, flushing pump 1-1 work is passed through washing pipe 1-4 and 1-5 with water tank 1-2, Pneumatic three-way ball valve 1-5 is 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 waste-water high-pressure filteration no-leakage system, it comprises cleaning device, filter press and PLC controller, it is characterized in that: the outlet of material pond is communicated with by the charging aperture of conveying pipeline with low pressure feed pump and high pressure charging pump, the discharging opening of low pressure feed pump and high pressure charging pump also connects and is communicated with the charging aperture of the both sides of filter press respectively by conveying pipeline, inlet valve and inlet valve, filtrate (liquid is communicated with the import of neutralization reaction still by filtrate pipe, and the neutralization reaction still is communicated with water tank by pipeline; The outlet of pneumatics press is communicated with the air accumulator air inlet, the air accumulator gas outlet is communicated with diaphragm pressing device air inlet respectively by tracheae, back-flushing valve, conveying pipeline is provided with pressure sensor and the pressure sensor signal end is connected with the signal end of PLC controller between inlet valve and the filter press, and the signal output part of PLC controller is connected with the signal end of frequency converter.
2, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1 is characterized in that: the operating frequency of high pressure charging pump is controlled by frequency converter and is controlled by the PLC system.
3, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1, it is characterized in that: the filter press below is equipped with panel turnover device, filter press one side be provided with delivery port and be communicated with filtrate pipe, another then is equipped with plate pulling device, plate pulling device is controlled by Hydraulic Station.
4, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1 is characterized in that: the charging aperture of low pressure feed pump and high pressure charging pump is respectively by ball valve and conveying pipeline and connect, and the discharging opening in material pond is equipped with ball valve; The discharging opening of low pressure feed pump and high pressure charging pump is equipped with check-valves, ball valve and pressure indicator respectively.
5, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1 is characterized in that: inlet valve is a Pneumatic butterfly valve.
6, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1, it is characterized in that: check-valves and ball valve are housed on the tracheae between air compressor machine and the air accumulator, ball valve and pressure indicator are installed on the tracheae, pressure indicator is housed on the air accumulator, back-flushing valve is a pneumatic ball valve.
7, desulfurization waste-water high-pressure filteration no-leakage system according to claim 1, it is characterized in that: the flushing pump water inlet in the cleaning device is communicated with water tank by washing pipe, the washing return pipe is communicated with washing pipe by the Pneumatic three-way ball valve and washs that the return pipe water return outlet is communicated with water tank, the washing pipe water inlet is communicated with the flushing pump delivery port, and the Pneumatic three-way ball valve is communicated with the device that washes cloth by washing pipe.
8, according to claim 7 or 8 described desulfurization waste-water high-pressure filteration no-leakage systems, it is characterized in that: the device band brake washes cloth; The panel turnover device band brake.
9, a kind of thermal power plant special sizing agent desulfurization treatment process, it is characterized in that: PLC controller instruction high pressure charging air pump inoperative, instruction low pressure feed pump respectively from the both sides charging aperture of filter press simultaneously injects it in by conveying pipeline and big flow low pressure material pond slurry by pipeline, when the pressure of the pressure sensor on the conveying pipeline between inlet valve and filter press reaches the setting low voltage value, the low pressure feed pump quits work, PLC controller instruction high pressure charging pump work, the high pressure charging pump respectively from the both sides charging aperture of filter press simultaneously injects it in by conveying pipeline high speed low discharge material pond slurry by pipeline, when the pressure of the pressure sensor on the conveying pipeline between inlet valve and filter press reaches the setting high-voltage value, PLC controller instruction high pressure charging pump quits work, air compressor machine work, force the air accumulator high pressure air to pass through tracheae, back-flushing valve carries out the blowback squeezing to diaphragm pressing device filter cake, water in the slurry extruded enter the neutralization reaction still through diaphragm pressing device delivery port and filtrate pipe and carry out neutralisation treatment, the water of handling through the neutralization reaction still is communicated with the circulation of formation nothing leakage water by pipeline with water tank, high pressure air passes through tracheae, back-flushing valve will be to the slurry blowback in the diaphragm pressing device filling tube to the material pond, flushing pump work is passed through washing pipe with water tank, the Pneumatic three-way ball valve is to washing cloth device and filter plate washed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101876898A CN101455915B (en) | 2008-12-30 | 2008-12-30 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
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| CN2008101876898A CN101455915B (en) | 2008-12-30 | 2008-12-30 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
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| CN101455915A true CN101455915A (en) | 2009-06-17 |
| CN101455915B CN101455915B (en) | 2012-03-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108181871A (en) * | 2018-01-19 | 2018-06-19 | 黑龙江工业学院 | A kind of method of computer control filter 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 |
| CN114432752A (en) * | 2022-01-20 | 2022-05-06 | 莱芜汉邦传动设备有限公司 | Pressure filter with anti-cleaning function |
-
2008
- 2008-12-30 CN CN2008101876898A patent/CN101455915B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108181871A (en) * | 2018-01-19 | 2018-06-19 | 黑龙江工业学院 | A kind of method of computer control filter device |
| CN108181871B (en) * | 2018-01-19 | 2020-05-26 | 黑龙江工业学院 | Method for controlling filtering device by computer |
| 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 |
| CN114432752A (en) * | 2022-01-20 | 2022-05-06 | 莱芜汉邦传动设备有限公司 | Pressure filter with anti-cleaning function |
| CN114432752B (en) * | 2022-01-20 | 2023-08-25 | 莱芜汉邦传动设备有限公司 | Filter press with back-washing function |
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| CN101455915B (en) | 2012-03-21 |
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Owner name: HANGZHOU XINGYUAN FILTRATION SCIENCE AND TECHNOLOG Free format text: FORMER OWNER: ZHOU LIWU Effective date: 20100115 |
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Effective date of registration: 20100115 Address after: 10, Liangzhu Road, Liangzhu Town, Yuhang District, Zhejiang City, Hangzhou Province, China: 311113 Applicant after: Hangzhou Xingyuan Filter Technology Co., Ltd. Address before: 10, Liangzhu Road, Liangzhu Town, Yuhang District, Zhejiang City, Hangzhou Province, China: 311113 Applicant before: Zhou Liwu |
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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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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. |