CN104083912A - Method for removing solid impurities in acid bath - Google Patents
Method for removing solid impurities in acid bath Download PDFInfo
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- CN104083912A CN104083912A CN201410366656.5A CN201410366656A CN104083912A CN 104083912 A CN104083912 A CN 104083912A CN 201410366656 A CN201410366656 A CN 201410366656A CN 104083912 A CN104083912 A CN 104083912A
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- acid bath
- filter
- solid impurity
- solid impurities
- filter plate
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- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention relates to a method for removing solid impurities in acid bath. A plate-frame filter, a centrifugal pump and a sludge collection trolley are adopted for the silt removal method. The method is characterized by comprising the following steps: filtering solid impurities in acid bath, removing the acid bath from the solid impurities and taking out sludge blocks. The plate-frame filter is used as a carrier, acid bath containing solid impurities is pumped into the plate-frame filter under certain pressure and at a certain speed, solids and liquid are filtered by filter cloth to be preliminarily separated from each other, then acid bath with stable turbidity, conforming to the technological requirement, is obtained, and solid impurities containing little acid bath are reserved among filter plates. The filter accessory is low in malfunction rate and low in loss, and the turbidity of the filtered acid bath is low and stable. The pressure is increased by filling the filter plates with water through a pressurizing pump so as to squeeze solid impurities between the two filter plates, the discharged acid bath with stable turbidity, conforming to the technological requirement, enters an acid bath system, and the solid impurities, which are reserved between the two filter plates in a sludge block form, automatically drop into the sludge collection trolley. The method is simple in process, less in floor area, low in pollution and good in controllability.
Description
Technical field
The present invention relates to solid-liquid separating method in viscose staple fibre production field, specifically a kind of viscose staple fibre is produced the removal method of solid impurity in acid bath used.
Background technology
Acid bath is the most frequently used coagulating bath during current viscose staple fibre is produced, in viscose glue forming process, there are a series of side reactions, the impurity such as blob of viscose that produce in half fibre that colloid sulphur, sulfide and the viscose glue producing brought into and ash content, viscose glue forming process enter acid bath, make acid bath become muddy, affect normally carrying out of spinning.The loss of filter accessory is high, working strength is large, site environment is poor for traditional removal method (please write out tradition but set out method), and these features make filter efficiency low, and the acid bath turbidity after filtration is unstable.Therefore, research and develop the removal method of solid impurity in new acid bath, can improve filter efficiency, guarantee the stable of acid bath turbidity.
Summary of the invention
Goal of the invention of the present invention be high for the removal method filter accessory loss of solid impurity in traditional acid bath, working strength is large, site environment is poor, the problem such as acid bath turbidity after filtration is unstable, provide a kind of and take sheet frame filter as carrier, pass through filter-cloth filtering, make solid-liquid initial gross separation, technique simple possible, filter efficiency is high, the removal method of solid impurity in the stable acid bath of acid bath turbidity.
Realize foregoing invention object by the following technical solutions:
Remove a method for solid impurity in acid bath, this method for removing mud adopts sheet frame filter, centrifugal pump and mud collecting cart, the following step that described method mainly comprises:
(1) filtration of solid impurity in acid bath: the acid bath that contains solid impurity is squeezed into sheet frame filter with centrifugal pump in acid bath tank, on the filter plate of sheet frame filter, be fixed with filter cloth, containing solid impurity acid bath, through filter cloth, tentatively carry out Separation of Solid and Liquid, solid impurity is deposited between filter plate, isolated acid bath enters production system, when sheet frame filter inlet pressure reaches 0.5MPa, stop centrifugal pump for acid;
(2) removal of acid bath in solid impurity: be pressurized to 0.6-0.65MPa to filter plate internal water flooding by force (forcing) pump, filter plate front and rear panel is expanded outwardly, push the solid impurity between two filter plates, acid solution in solid impurity is extruded, be 5-10 minute pressing time, and the acid bath of extruding enters production system;
(3) taking-up of sludge bulking: mud collecting cart is shifted onto under filter plate, and block-by-block unclamps filter plate, the sludge bulking between filter plate drops in mud collecting cart automatically, pours the mud in mud collecting cart into production dustbin, pending.
As preferred version, described acid bath turbidity is 20-25(FTU).
As preferred version, by weight, described sludge bulking is moisture is 20%.
Adopt technique scheme, compared with prior art, the present invention be take sheet frame filter as carrier, under certain pressure and speed, the acid bath containing solid impurity is squeezed into sheet frame filter, by filter-cloth filtering, make solid-liquid initial gross separation, be met the stable acid bath of turbidity of technic index, this acid bath enters production system, and the solid impurity that contains a small amount of acid bath is stayed between filter plate.Filter accessory failure rate is low, accessory loss is low, and after filtering, acid bath turbidity is low and stable.After initial gross separation finishes, by force (forcing) pump, to filter plate internal water flooding, pressurize, push the solid impurity between two filter plates, the stable acid bath of the turbidity that meets technological requirement of discharge enters acid bath system, and solid impurity is stayed between two filter plates and automatically dropped in mud collecting cart with the form of sludge bulking.Technique is simple, and floor space is few, pollutes lowly, and controllability is good.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
The present embodiment discloses the removal method of solid impurity in a kind of acid bath, and the method adopts sheet frame filter, centrifugal pump and mud collecting cart, take sheet frame filter as carrier, by filter-cloth filtering, makes solid-liquid initial gross separation.By force (forcing) pump, to filter plate internal water flooding, pressurize, push the solid impurity between two filter plates, acid bath in solid impurity is discharged by filter cloth under the extruding of two filter plates, and discharge, solid impurity are stayed between two filter plates and automatically dropped in mud collecting cart with the form of sludge bulking.
Concrete grammar step is:
(1) filtration of solid impurity in acid bath: 200 object filter clothes are fixed on filter plate, filter plate is compressed, start centrifugal pump, the acid bath that contains solid impurity that tow is returned in sour tank is squeezed into the filtration of sheet frame filter with centrifugal pump, what have certain pressure and speed contains solid impurity acid bath through filter cloth, tentatively carry out Separation of Solid and Liquid, transparent acid bath after filtration is got back to acid bath system through returning acid tube, solid impurity is deposited between filter plate, enter production system, when sheet frame filter inlet pressure reaches 0.5MPa, stop centrifugal pump for acid;
(2) removal of acid bath in solid impurity: open force (forcing) pump and squeeze into water under high pressure in filter plate, be pressurized to 0.6-0.65MPa by force (forcing) pump to filter plate internal water flooding, be 5-10 minute pressing time.Filter plate front and rear panel is expanded outwardly, push the solid impurity between two filter plates, acid bath in solid impurity is discharged by filter cloth under the extruding of two filter plates, the stable acid bath of the turbidity that meets technological requirement of discharging enters acid bath system, acid bath turbidity is 20-25(FTU), solid impurity is stayed between two filter plates with the form of sludge bulking, and by weight, sludge bulking is moisture is 20%.
(3) taking-up of sludge bulking: mud collecting cart is shifted onto under filter plate, and block-by-block unclamps filter plate, the sludge bulking between filter plate drops in mud collecting cart automatically, pours the mud in mud collecting cart into production dustbin, is for further processing.
So circulate and then realize goal of the invention.
Above-described embodiment has only been expressed one embodiment of the present invention, but can not therefore be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (3)
1. remove a removal method for solid impurity in the method acid bath of solid impurity in acid bath, this method for removing mud adopts sheet frame filter, centrifugal pump and mud collecting cart, it is characterized in that the following step that described method mainly comprises:
(1) filtration of solid impurity in acid bath: the acid bath that contains solid impurity is squeezed into sheet frame filter with centrifugal pump in acid bath tank, on the filter plate of sheet frame filter, be fixed with filter cloth, containing solid impurity acid bath, through filter cloth, tentatively carry out Separation of Solid and Liquid, solid impurity is deposited between filter plate, isolated acid bath enters production system, when sheet frame filter inlet pressure reaches 0.5MPa, stop centrifugal pump for acid;
(2) removal of acid bath in solid impurity: be pressurized to 0.6-0.65MPa to filter plate internal water flooding by force (forcing) pump, filter plate front and rear panel is expanded outwardly, push the solid impurity between two filter plates, acid solution in solid impurity is extruded, be 5-10 minute pressing time, and the acid bath of extruding enters production system;
(3) taking-up of sludge bulking: mud collecting cart is shifted onto under filter plate, and block-by-block unclamps filter plate, the sludge bulking between filter plate drops in mud collecting cart automatically, pours the mud in mud collecting cart into production dustbin, pending.
2. a kind of method of removing solid impurity in acid bath according to claim 1, is characterized in that, described acid bath turbidity is 20-25FTU.
3. a kind of method of removing solid impurity in acid bath according to claim 1, is characterized in that, by weight, described sludge bulking is moisture is 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366656.5A CN104083912B (en) | 2014-07-30 | 2014-07-30 | A kind of method removing solid impurity in acid bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366656.5A CN104083912B (en) | 2014-07-30 | 2014-07-30 | A kind of method removing solid impurity in acid bath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104083912A true CN104083912A (en) | 2014-10-08 |
| CN104083912B CN104083912B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410366656.5A Active CN104083912B (en) | 2014-07-30 | 2014-07-30 | A kind of method removing solid impurity in acid bath |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434347A (en) * | 2017-08-28 | 2017-12-05 | 浙江晋椿五金配件有限公司 | A kind of sludge dehydration device and dewatering |
Citations (6)
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| JPS55111808A (en) * | 1979-02-22 | 1980-08-28 | Yasutake Sudou | Filter for dehydration |
| CN2203175Y (en) * | 1994-11-18 | 1995-07-12 | 陈学良 | Pressure sludge clarifying oil filter |
| CN2356732Y (en) * | 1998-02-13 | 2000-01-05 | 徐秀起 | Combined plate frame for filter press |
| CN102617013A (en) * | 2012-04-24 | 2012-08-01 | 浙江海拓环境技术有限公司 | Method for concentrating and dehydrating sludge |
| CN102814063A (en) * | 2012-08-14 | 2012-12-12 | 佛山市金凯地过滤设备有限公司 | Pressure filter and pressure filtration method thereof |
| CN203090569U (en) * | 2012-12-21 | 2013-07-31 | 卓易环保设备（上海）有限公司 | Waste acid purification and recovery system |
-
2014
- 2014-07-30 CN CN201410366656.5A patent/CN104083912B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55111808A (en) * | 1979-02-22 | 1980-08-28 | Yasutake Sudou | Filter for dehydration |
| CN2203175Y (en) * | 1994-11-18 | 1995-07-12 | 陈学良 | Pressure sludge clarifying oil filter |
| CN2356732Y (en) * | 1998-02-13 | 2000-01-05 | 徐秀起 | Combined plate frame for filter press |
| CN102617013A (en) * | 2012-04-24 | 2012-08-01 | 浙江海拓环境技术有限公司 | Method for concentrating and dehydrating sludge |
| CN102814063A (en) * | 2012-08-14 | 2012-12-12 | 佛山市金凯地过滤设备有限公司 | Pressure filter and pressure filtration method thereof |
| CN203090569U (en) * | 2012-12-21 | 2013-07-31 | 卓易环保设备（上海）有限公司 | Waste acid purification and recovery system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434347A (en) * | 2017-08-28 | 2017-12-05 | 浙江晋椿五金配件有限公司 | A kind of sludge dehydration device and dewatering |
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| CN104083912B (en) | 2016-06-01 |
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Inventor after: Jiang Dehu Inventor after: Li Huixi Inventor after: Wu Bin Inventor after: Wang Zhijiang Inventor after: Chen Xuejiang Inventor after: Zhang Yuguo Inventor after: Cao Jie Inventor after: Wang Bin Inventor after: Liu Xiaolong Inventor after: Zhang Li Inventor after: Xuan Libao Inventor after: Tang Xinchun Inventor before: Jiang Dehu Inventor before: Li Huixi Inventor before: Wu Bin Inventor before: Wang Zhijiang Inventor before: Chen Xuejiang Inventor before: Zhang Yuguo Inventor before: Cao Jie Inventor before: Wang Bin Inventor before: Liu Xiaolong Inventor before: Zhang Li Inventor before: Xuan Libao Inventor before: Tang Xinchun |
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