CN103223269B - Energy-saving diaphragm type pressure filter - Google Patents

Energy-saving diaphragm type pressure filter Download PDF

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Publication number
CN103223269B
CN103223269B CN201310137843.1A CN201310137843A CN103223269B CN 103223269 B CN103223269 B CN 103223269B CN 201310137843 A CN201310137843 A CN 201310137843A CN 103223269 B CN103223269 B CN 103223269B
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CN
China
Prior art keywords
filter
plate
pressure
control valve
pipe
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Application number
CN201310137843.1A
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Chinese (zh)
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CN103223269A (en
Inventor
徐大鹏
冯英
王维征
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广西新天德能源有限公司
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Priority to CN201310137843.1A priority Critical patent/CN103223269B/en
Publication of CN103223269A publication Critical patent/CN103223269A/en
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Publication of CN103223269B publication Critical patent/CN103223269B/en

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Abstract

The invention discloses an energy-saving diaphragm type pressure filter, comprising a thrust plate, a compressing plate, filter plates and a top press oil cylinder, wherein the thrust plate and the compressing plate are arranged oppositely; the compressing plate is connected to a piston rod of the top press oil cylinder; the filter plates are successively arranged and pressed tightly between the thrust plate and the compressing plate; a filter cloth is clamped between each adjacent filter plates so as to form a filter chamber; an elastic membrane is arranged between each filter plate and corresponding filter cloth; the thrust plate is provided with a material-feeding port communicated with each filter chamber; the material-feeding port is communicated with a slurry pump pipe with a control valve; the thrust plate is also provided with dewatering ports passing through the filter plates and the elastic membranes; the dewatering ports are communicated with a high pressure medium pump pipe with the control valve; and the high pressure medium pump pipe with the control valve and a blow-off pipe are connected to the slurry pump pipe. By adopting two additional processing measures of emptying residual liquid and backflushing air, water content in a filter cake is reduced maximally and steam for the next drying process is saved.

Description

Energy-saving membrane pressure filter
(1) technical field:
The present invention relates to the filtering equipment of Separation of Solid and Liquid, be specially a kind of energy-saving membrane pressure filter.
(2) background technology:
Membrane pressure filter in unit are disposal ability, reduce filter cake moisture, all show significant effect in the adaptability of the character of material handling etc., be widely used in the every field that there is Separation of Solid and Liquid, as the feedstuff industry of the application unit.
The primary structure of described diaphragm filter press is divided into main frame and hydraulic pressure two parts.Main frame, primarily of part compositions such as thrust plate, pressure strip, filter plate, oil cylinder, oil cylinder seat, crossbeams, when oil cylinder piston is under hydraulic oil effect, will drive pressure strip to move forward and backward on crossbeam; Filter plate order is arranged between pressure strip and thrust plate, and centre also will clip filter cloth, has installed one deck elastic membrane between filter plate and filter cloth additional, and when pressure strip forwardly advances time, filter plate and filter plate are just formed as filter chamber one by one.
When pushing into slurry under the pressure of membrane pressure filter at feed pump, slurry will enter each filter chamber from the charging aperture of thrust plate, solid particle also can be trapped in filter chamber inside because of particle diameter greatly than the hole of filter cloth, form a filter cake, liquid component can be discharged to machine from fluid hole by filter cake and filter cloth; When pan feeding terminates, can inject between filter plate and elastic membrane by high-pressure fluid medium, at this moment whole elastic membrane will heave compressing filter cake, thus realizes the further dehydration of filter cake.
Find in practice, before membrane pressure filter has squeezed rear beginning discharging, some slurries remains in charging aperture and between filter plate and filter plate, have impact on the removal of moisture of filter cake content, causes the efficiency of press filtering of machine to can not get improving to greatest extent.
(3) summary of the invention:
For the weak point of conventional membrane formula filter press, the object of the invention is to propose a kind of energy-saving membrane pressure filter improving machine operational efficiency.
The energy-saving membrane pressure filter of above-mentioned purpose can be realized, comprise thrust plate, pressure strip, filter plate and top compressing cylinder, described thrust plate is relative with pressure strip and put, pressure strip is connected on the piston rod of top compressing cylinder, the arrangement of described filter plate order is pressed between thrust plate and pressure strip, clip filter cloth between filter plate and filter plate and form filter chamber, also elastic membrane is provided with between filter plate and filter cloth, described thrust plate is offered the charging aperture being communicated with each filter chamber, the external slurry pump line with control valve of described charging aperture, thrust plate is also offered the dehydrated mouth passed between filter plate and elastic membrane, the external high-pressure medium pump line with control valve of described dehydrated mouth, difference is in charging aperture place, with high-pressure air pipe and the blow-off pipe access slurry pump line of control valve, press in slurry dehydration---extrusion dehydration---emptying surplus liquid---the filter-pressing process flow process of air blowback, described slurry pump line, high-pressure medium pump line, the control valve of blow-off pipe and high-pressure air pipe is individually opened.
Conventionally connect slurry pump line, charging aperture, high-pressure air pipe and blow-off pipe with four-way union.
Corresponding to the slurry pump line of ¢ 125, the coupling caliber of described high-pressure air pipe is ¢ 25, and the coupling caliber of described blow-off pipe is ¢ 50.
Advantage of the present invention:
The technological measure that the energy-saving membrane pressure filter of the present invention adopts emptying surplus liquid and air blowback two to increase, reducing the water content of filter cake to greatest extent, is next step baking operation steam saving, dries one ton of feed and can economize on gas 50kg.
(4) accompanying drawing illustrates:
Fig. 1 is the structural representation of one embodiment of the present invention.
Figure number identifies: 1, thrust plate; 2, pressure strip; 3, filter plate; 4, compressing cylinder is pushed up; 5, slurry pump line; 6, control valve; 7, high-pressure air pipe; 8, blow-off pipe; 9, four-way union; 10, charging aperture; 11, dehydrated mouth; 12, piston rod; 13, oil cylinder seat; 14, support.
(5) detailed description of the invention:
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further:
The energy-saving membrane pressure filter of the present invention comprises thrust plate 1, pressure strip 2, filter plate 3, top compressing cylinder 4, the parts such as oil cylinder seat 13 and crossbeam are formed, oil cylinder seat 13 and thrust plate 1 are connected into a rectangular horizontal frame and are supported on support 14 by two crossbeams, top compressing cylinder 4 is installed in oil cylinder seat 13, the horizontal piston bar 12 of top compressing cylinder 4 protracts and connects pressure strip 2(and be held on crossbeam), pressure strip 2 and thrust plate 1 are oppositely arranged, some filter plate 3 orders arrange and are pressed between pressure strip 2 and thrust plate 1, filter cloth is clipped between filter plate 3 and filter plate 3, one deck elastic membrane is installed additional between filter plate and filter cloth, filter chamber is formed between filter plate 3 and filter plate 3, as shown in Figure 1.
The middle part of described thrust plate 1 arranges the charging aperture 10 that can be communicated with each filter chamber, and described charging aperture 10 needs the slurry pump line 5 being outwards communicated with band control valve 6; The periphery of thrust plate 1 arranges dehydrated mouth 11, and described dehydrated mouth 11 can pass between the filter plate 3 of each filter chamber and elastic membrane, and dehydrated mouth 11 needs the high-pressure medium pump line being outwards communicated with band control valve 6, as shown in Figure 1.
The slurry pump line 5 of charging aperture 10 position also needs the high-pressure air pipe 7 and the blow-off pipe 8 that access band control valve 6, four-way union 9 is adopted for convenience of connecting, slurry pump line 5, charging aperture 10, high-pressure air pipe 7 and blow-off pipe 8 are connected together by four-way union 9, press in slurry dehydration---extrusion dehydration---emptying surplus liquid---the filter-pressing process flow process of air blowback, the control valve 6 of described slurry pump line 5, high-pressure medium pump line, blow-off pipe 8 and high-pressure air pipe 7 is individually opened, and slurry pump line 5, high-pressure medium pump line, blow-off pipe 8 and high-pressure air pipe 7 are independently worked.
The caliber of described slurry pump line 5 is ¢ 125, and the caliber of high-pressure air pipe 7 is ¢ 25, and the caliber of blow-off pipe 8 is ¢ 50.
Filter-pressing process flow process of the present invention:
1, be first normal pressure press-dehydrating, also claim to dewater into slurry.
The piston rod 12 of top compressing cylinder 4 is released and is compressed filter plate 3, the control valve 6 of slurry pump line 5 is opened (control valve 6 of other pipelines is closed), filter material is admitted to filter chamber at powerful direct draught, its solid portion of filter material entering filter chamber is filtered cloth and retains formation filter cake, liquid component permeate filter cloth and discharge filter chamber, thus reach the object of Separation of Solid and Liquid, along with the increase of malleation pressure, Separation of Solid and Liquid is then more thorough.
2, be then extrusion dehydration.
The control valve 6 of high-pressure medium pump line is opened (control valve 6 of other pipelines is closed), then fluid compression medium enter elastic membrane the back side promote elastic membrane filter cake is dewatered further.
3, emptying surplus liquid is carried out again.
After having dewatered, the control valve 6 of blow-off pipe 8 is opened (control valve 6 of other pipelines is closed), and the residual liquid in charging aperture 10 is all emptying.
4, finally air blowback is carried out.
After residual liquid is emptying, the control valve 6 of high-pressure air pipe 7 is opened (control valve 6 of other pipelines is closed), and high pressure gas enters filter chamber blowback filter cake, the moisture content of further air-dry filter cake, solves the moisture content of filter cake to greatest extent.
After filter-pressing process flow process terminates, piston rod 12 rollback of top compressing cylinder 4 removes the thrust to filter plate 3, and monolithic progressively pulls open filter plate 3, opens wide filter chamber removal filter cake respectively.

Claims (3)

1. energy-saving membrane pressure filter, comprise thrust plate (1), pressure strip (2), filter plate (3) and top compressing cylinder (4), described thrust plate (1) is relative with pressure strip (2) and put, pressure strip (2) is connected on the piston rod (12) on top compressing cylinder (4), the arrangement of described filter plate (3) order is pressed between thrust plate (1) and pressure strip (2), clip filter cloth between filter plate (3) and filter plate (3) and form filter chamber, also elastic membrane is provided with between filter plate (3) and filter cloth, described thrust plate (1) is offered the charging aperture (10) being communicated with each filter chamber, the external slurry pump line (5) with control valve (6) of described charging aperture (10), thrust plate (1) is also offered the dehydrated mouth (11) passed between filter plate (3) and elastic membrane, the external high-pressure medium pump line with control valve (6) of described dehydrated mouth (11), it is characterized in that: in charging aperture (10) place, with high-pressure air pipe (7) and the blow-off pipe (8) access slurry pump line (5) of control valve (6), press in slurry dehydration---extrusion dehydration---emptying surplus liquid---the filter-pressing process flow process of air blowback, described slurry pump line (5), high-pressure medium pump line, the control valve (6) of blow-off pipe (8) and high-pressure air pipe (7) is individually opened.
2. energy-saving membrane pressure filter according to claim 1, is characterized in that: connect slurry pump line (5), charging aperture (10), high-pressure air pipe (7) and blow-off pipe (8) with four-way union (9).
3. energy-saving membrane pressure filter according to claim 1 and 2, is characterized in that: correspond to slurry pump line (5), the coupling caliber of described high-pressure air pipe (7) is the coupling caliber of described blow-off pipe (8) is
CN201310137843.1A 2013-04-19 2013-04-19 Energy-saving diaphragm type pressure filter CN103223269B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310137843.1A CN103223269B (en) 2013-04-19 2013-04-19 Energy-saving diaphragm type pressure filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310137843.1A CN103223269B (en) 2013-04-19 2013-04-19 Energy-saving diaphragm type pressure filter

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CN103223269A CN103223269A (en) 2013-07-31
CN103223269B true CN103223269B (en) 2015-04-15

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103405953B (en) * 2013-08-30 2015-05-20 重庆三温暖电气有限公司 Filter press
CN103405951B (en) * 2013-08-30 2015-09-30 重庆三温暖电气有限公司 A kind of filter press
CN103405952B (en) * 2013-08-30 2015-07-15 重庆三温暖电气有限公司 Filter press control method and system
CN104824380A (en) * 2015-05-19 2015-08-12 吴秀生 Waste diatomite processing system and waste diatomite processing technique
CN105572015B (en) * 2016-03-04 2018-06-15 台州海勃机械有限公司 Filter cloth is adapted to type selecting stimulation tester

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3932422C2 (en) * 1989-09-28 1995-04-13 Krupp Maschinentechnik Plate filter press
CN101544459B (en) * 2009-05-11 2011-04-13 浙江华章科技有限公司 Plate-type sludge dewatering machine and dewatering method therefor
CN202519234U (en) * 2012-02-09 2012-11-07 张志军 Yellow wine press
CN202876468U (en) * 2012-09-11 2013-04-17 邹平县滨渤生物科技有限公司 Plate-and-frame filter press
CN203183762U (en) * 2013-04-19 2013-09-11 广西新天德能源有限公司 Energy-saving diaphragm type pressure filter

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