CN205109127U - Filter plate group of horizontal spring squeezer of electroosmosis - Google Patents
Filter plate group of horizontal spring squeezer of electroosmosis Download PDFInfo
- Publication number
- CN205109127U CN205109127U CN201520941074.5U CN201520941074U CN205109127U CN 205109127 U CN205109127 U CN 205109127U CN 201520941074 U CN201520941074 U CN 201520941074U CN 205109127 U CN205109127 U CN 205109127U
- Authority
- CN
- China
- Prior art keywords
- filter
- plate
- main frame
- filter plate
- osmosis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model provides a filter plate group of horizontal spring squeezer of electroosmosis, includes filter plate, main frame and vice frame, be provided with material cavity in the main frame, the tow sides of filter plate are provided with the filter screen, strain the netlist face and are provided with the drainage line that is used for the diversion, material cavity's both sides are provided with plate electrode, filter cloth, and the filter cloth is connected with the tow sides of filter plate, main frame and vice frame, and the plate electrode includes negative plate and anode plate, locates the both sides of filter plate respectively to be in the inboard of filter cloth, negative plate and anode plate are equipped with the terminal respectively. The utility model discloses an above structure is squeezed dehydration techniques to electroosmosis dehydration techniques and mechanical secondary and is combined effectively, has improved the mass dryness fraction of dehydration back material widely, especially to chemical sludge and organic very high mud of content, improves production efficiency greatly.
Description
Technical field
The utility model relates to horizontal spring presser technical field, particularly relates to a kind of filter plate of electro-osmosis horizontal spring presser.
Background technology
Along with the development of modern industry, horizontal spring presser is more and more extensive in the application of the industries such as food, chemical industry, environmental protection, pottery, weaving, mine.The structure of horizontal spring presser comprises hydraulic means, filter-pressing device, is arranged at the piston rod of hydraulic means front end and is fixed on the guide rod of hydraulic means and filter-pressing device two sides, and piston rod is movably arranged on guide rod.Piston rod front end is provided with push pedal, and filter-pressing device comprises the end to end filter plates of many groups, and filter plates is movably arranged on guide rod.When using horizontal spring presser, first primer fluid pressure device, drive push pedal by filter-pressing device end-enclosed and pressurize maintenance by piston rod, utilize feed pump to be evacuated to the material cavity of filter plates from the charging aperture of filter-pressing device rear end by material to be drained off and to fill up, then dehydrating operations is carried out to material.
But, by the moisture content of the material after this mechanical dehydration mode or higher, especially for chemical sludge and the very high mud of organic content, moisture in this mud is difficult to be disposed by the mode of mechanical expression, if the moisture in these mud is not removed the cost that can increase post-processed and burn.
Utility model content
The purpose of this utility model is the filter plates providing a kind of electro-osmosis horizontal spring presser for weak point of the prior art, electroosmotic dewatering technology and mechanical secondary press dewatering technology effective ground are combined, greatly increase the mass dryness fraction of the rear material of dehydration, especially for chemical sludge and the very high mud of organic content, greatly enhance productivity.
For reaching this object, the utility model by the following technical solutions:
A kind of filter plates of horizontal spring presser is provided, comprises filter plate, main frame and secondary frame; Described filter plate is circular slab, arranges through hole in the middle part of it, and its excircle is provided with land; Described main frame is ring frame, and it is enclosed within described land; Described secondary frame is ring frame, and it is enclosed within described main frame; Gap between described main frame and described secondary frame is sealed by the 3rd press strip;
Material cavity is provided with in described main frame;
The tow sides of described filter plate are provided with filter screen, and described screen surface is provided with the drainage lines for diversion;
The both sides of described material cavity are provided with filter cloth, and described filter cloth is connected with the tow sides of described filter plate, described main frame and described secondary frame;
The inner ring position on the surface that described main frame contacts with described filter plate is provided with the annular breach for draining, and the gap spacing of described annular breach is 1mm ~ 3mm;
Preferably, the gap spacing of described annular breach is 2mm;
Also be provided with battery lead plate, comprise minus plate and positive plate, be located at the both sides of filter plate respectively, and be in the inner side of filter cloth; Described minus plate and positive plate are respectively equipped with binding post;
The material of described battery lead plate is 316 model stainless steels after titanizing process, and its thickness is not less than 0.8mm;
Described battery lead plate is provided with through hole, and its size is corresponding with the through hole in the middle part of position and filter plate; And electrode plate surface evenly opens the circular hole that diameter is 5mm, percent opening is 30% ~ 35%;
Described binding post adopts silver-plated 316L corrosion resistant plate, is welded on described battery lead plate;
The position alignment parallel to each other of described minus plate and positive plate;
Described filter plates is provided with the drainage channel be connected with described annular inner side, and the caliber of described drainage channel is 5mm ~ 15mm;
The edge of described filter plate and described secondary frame, and all offer spring groove in the position that described filter plate is relative with described secondary frame, be provided with spring in described spring groove;
The front of described main frame and described secondary frame all offers groove, and described filter cloth is pressed in described groove by the 4th press strip;
The front of described main frame is provided with for cushioning the buffer groove shrinking filter cloth;
The edge at the described filter plate back side is provided with the second press strip for compressing filter cloth, and described second press strip is fixed by screw.
The beneficial effects of the utility model: the filter plates of a kind of electro-osmosis horizontal spring presser of the present utility model, comprises filter plate, main frame and secondary frame, filter plate is circular slab, arranges through hole in the middle part of it, and its excircle is provided with land, main frame is ring frame, and it is enclosed within land, secondary frame is ring frame, and it is enclosed within main frame, gap between main frame and secondary frame is sealed by the 3rd press strip, material cavity is provided with in main frame, the tow sides of filter plate are provided with filter screen, and screen surface is provided with the drainage lines for diversion, the both sides of material cavity are provided with filter cloth, and filter cloth is connected with the tow sides of filter plate, main frame and secondary frame, also be provided with battery lead plate, comprise minus plate and positive plate, be located at the both sides of filter plate respectively, and be in the inner side of filter cloth, described minus plate and positive plate are respectively equipped with binding post, the inner ring position on the surface that main frame contacts with filter plate is provided with the annular breach for draining, and the gap spacing of annular breach is 1mm ~ 3mm, and annular inner side is connected with the drainage channel that caliber is 5mm ~ 15mm, therefore, by annular breach and drainage channel, make the speed of drainage of the present utility model and draining fast, significantly reduce the pressure that hydraulic means provides filter-pressing device, it also avoid the blocking of filter screen somewhere simultaneously and cause this place's ponding, and can prevent filter plate edge from spraying material, when electro-osmosis horizontal spring presser works, spring is extruded and makes the reduced space of material cavity thus squeeze material and dewater, achieve the twice pressing in mechanical dehydration, the mass dryness fraction of material is improved further, electroosmotic dewatering is carried out while twice pressing dehydration, " Free water " and " Bound moisture " in mud is separated simultaneously from mud, achieve high efficiency dehydration, because electro-osmosis can make the most difficult separated " Bound moisture " in material to be thoroughly separated, thus the material mass dryness fraction after dehydration is improved greatly, and the later material self that dewaters also has certain waste heat, more can take away a part of moisture content, final material mass dryness fraction at least promotes 30% than the mud mass dryness fraction of unclassified stores dewatering type, particularly for biochemical sludge, the mud that the content of organic matter is high, dehydrating effect is more remarkable, mud mass dryness fraction can reach more than 50%, above two kinds of dewatering types are combined, greatly enhance productivity and the mass dryness fraction of material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the filter plates of a kind of horizontal spring presser of the present utility model.
Fig. 2 is the cross-sectional view of filter plates along its longitudinal central axis line of a kind of horizontal spring presser of the present utility model.
Fig. 3 is the partial structurtes schematic diagram at A place in Fig. 1.
Fig. 4 is the partial structurtes schematic diagram at B place in Fig. 1.
--411, positive plate--412,5--filter screen, 6--filter cloth, 7--annular breach, 8--spring groove, 9--spring, 10--slope, 11--pressure ring, 101--through hole, 102--land, 103--bolt, 104--first press strip, 105--second press strip, 201--buffer groove, 301--the 3rd press strip, 302--the 4th press strip is included: the main frame of 1--filter plate, 2--, 3--secondary frame, 4--material cavity, minus plate in Fig. 1 to Fig. 4.
Detailed description of the invention
The technical solution of the utility model is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Embodiment 1.
See Fig. 1 to Fig. 4.The filter plates of a kind of horizontal spring presser of the present embodiment, comprises filter plate 1, main frame 2 and secondary frame 3; Filter plate 1 is circular slab, arranges through hole 101 in the middle part of it, and its excircle is provided with land 102; Main frame 2 is ring frame, and it is enclosed within land 102; Secondary frame 3 is ring frame, and it is enclosed within main frame 2; Gap between main frame 2 and secondary frame 3 is sealed by the 3rd press strip 301; Wherein, the 3rd press strip 301 by screw lock in the front of main frame 2 and near the side of secondary frame 3.3rd press strip 301 can prevent the water deviate from from material from being penetrated in spring groove 8 by the gap between main frame 2 and secondary frame 3, thus the spring 9 avoided in spring groove 8 is corroded.
Material cavity 4 is provided with in main frame 2; This material cavity 4 is for holding the material from through hole 101 suction.
The tow sides of filter plate 1 are provided with filter screen 5, and filter screen 5 surface is provided with the drainage lines for diversion.
The both sides of material cavity 4 are provided with filter cloth 6, and filter cloth 6 is connected with the tow sides of filter plate 1, main frame 2 and secondary frame 3.
The inner ring position on the surface that main frame 2 contacts with filter plate 1 is provided with the annular breach 7 for draining.In the present embodiment, the gap spacing of annular breach 7 is 2mm.Filter plates is provided with and the drainage channel be connected inside annular breach 7, and the caliber of drainage channel is 10mm, and this drainage channel leads to outside filter plate 1.Wherein, the water deviate from from material is guided in the drainage channel that filter plates arranges by drainage lines.Horizontal spring presser is in the process of work, and the water deviate from from material enters into filter screen 5 through filter cloth 6, is guided in drainage channel by water via the drainage lines on filter screen 5.
Owing to being provided with the annular breach 7 for draining, filter is to the water of filter screen 5, water can be guided in drainage channel via the drainage lines on filter screen 5 on the one hand, can via annular breach 7, water be discharged in drainage channel on the other hand simultaneously, make the speed of drainage of the present utility model and draining fast, significantly reduce the pressure that hydraulic means provides filter-pressing device, it also avoid the blocking of filter screen 5 somewhere simultaneously and cause this place's ponding, and can prevent filter plate edge from spraying material, affect working environment, thus greatly enhance productivity.
In the present embodiment, the edge of filter plate 1 and secondary frame 3, and all offer spring groove 8 in the position that filter plate 1 is relative with secondary frame 3, be provided with spring 9 in spring groove 8.When horizontal spring presser works, spring 9 is extruded and makes the reduced space of material cavity 4 thus squeeze material and dewater.
Also be provided with battery lead plate, comprise minus plate 411 and positive plate 412, be located at the both sides of filter plate 1 respectively, and be in the inner side of filter cloth 6; Described minus plate 411 and positive plate 412 are respectively equipped with binding post;
The material of described battery lead plate is 316 model stainless steels after titanizing process, and its thickness is not less than 0.8mm, ensure that the compression strength of battery lead plate;
Described battery lead plate is provided with through hole, and its size is corresponding with the through hole in the middle part of position and filter plate; And electrode plate surface evenly opens the circular hole that diameter is 5mm, and percent opening is 30% ~ 35%, this ensure that drainage effect;
Described binding post adopts silver-plated 316L corrosion resistant plate, is welded on described battery lead plate, effectively improves the conductive effect of binding post;
The position alignment parallel to each other of described minus plate 411 and positive plate 412 is that electro-osmosis effect is better;
High pressure charging has been carried out at electro-osmosis horizontal spring presser, in the process of squeezing, positive pole and the negative pole of dc source is connected respectively on the binding post of described minus plate 411 and described positive plate 412, logical pulse direct current is carried out to the two sides of the same sludge filter cake in material cavity 4, a positive pole, a negative pole, electroosmotic dewatering technology is the theory according to " electrophoresis ", to make in material cavity 4 the hydrone formed in filter cake carry out displacement, make the reduced space of material cavity 4 in conjunction with spring 9 is extruded thus squeeze material and this twice pressing technology of dewatering, " Free water " and " Bound moisture " in material is separated simultaneously from material, reach the object of dehydration further,
And, electroosmotic dewatering passes into electric current under the state of moisture existence, equipment arranges several insulating barrier and ensures as safety and deodorization around live part, in dehydration, sludge odor burst size is very little, in dehydration filter residue, moisture content reduces, foul smell alleviates, so the body refuse foul smell of electro-osmosis is lighter; After dehydration, filtrate directly can be back to sewage disposal system, guarantees that non-secondary pollution hidden danger exists;
Detailed step is: material, after flocculation, starts low material of compressing into technological requirement amount, pressure 0-0.6MPa; After completing, height is compressed into material and is reached technological requirement amount, pressure 0.6-1.0MPa, and the initial mass dryness fraction of mud is 1.8%, and start to carry out high-pressure compressing, squeeze pressure remains within the scope of 0.8-1.0MPa; High-pressure compressing starts segmentation and carries out pulse direct current energising after carrying out 10 minutes, determine each segment conduction time to control at 10-20 minute, when running current is lower than 100A, namely complete this material dewatering process conduction time according to electric current instruction;
The front of main frame 2 and secondary frame 3 all offers groove, and filter cloth 6 is pressed in groove by the 4th press strip 302.Wherein, the 4th press strip 302 of main frame 2 by screw lock in the groove of main frame 2.
In the present embodiment, the filter cloth 6 being connected to main frame 2 and secondary frame 3 front forms the slope 10 of adjustable obliquity, regulates the gradient on slope 10, the filter cloth 6 at slope 10 place can be made to play good water filtering performance according to different materials.The water that this slope 10 makes this place deviate from from material is more; therefore; this place's material is relatively dry; material flows less in a dry state; and utilize slope 10 that material is gathered to the center of filter plate 1 under gravity; thus the edge breakage of filter cloth 6 can be avoided, prevent filter plate edge from spraying material, protect the corrosion of the press strip at this place.
Filter plate 1 is provided with the pressure ring 11 for filter cloth 6 being locked at filter plate 1 surface near the circumference of through hole 101.This pressure ring 11 is fixed on filter plate 1 by bolt 103.
In the present embodiment, between pressure ring 11 and filter plate 1, and offer groove on filter plate 1, filter cloth 6 is pressed in groove by the first press strip 104.
The front of main frame 2 is provided with for cushioning the buffer groove 201 shrinking filter cloth 6.In the process of squeezing material, this buffer groove 201 pairs of filter clothes 6 play good cushioning effect.
The edge at filter plate 1 back side is provided with the second press strip 105 for compressing filter cloth 6, and this second press strip 105 is fixed by screw.
Embodiment 2.
The embodiment 2 of the filter plates of a kind of horizontal spring presser of the present utility model, the difference of the present embodiment and embodiment 1 is, the gap spacing of annular breach 7 is 1mm, the caliber of drainage channel is 5mm, the annular breach 7 that the present embodiment is arranged, the speed of drainage of the present utility model and draining can be made equally fast, significantly reduce the pressure that hydraulic means provides filter-pressing device, improve production efficiency; It also avoid the blocking of filter screen 5 somewhere simultaneously and cause this place's ponding.Other structure and working principle of the present embodiment is identical with embodiment 1, does not repeat them here.
Embodiment 3.
The embodiment 3 of the filter plates of a kind of horizontal spring presser of the present utility model, the difference of the present embodiment and embodiment 1 is, the gap spacing of annular breach 7 is 3mm, the caliber of drainage channel is 15mm, the annular breach 7 that the present embodiment is arranged, the speed of drainage of the present utility model and draining can be made equally fast, significantly reduce the pressure that hydraulic means provides filter-pressing device, improve production efficiency; It also avoid the blocking of filter screen 5 somewhere simultaneously and cause this place's ponding.Other structure and working principle of the present embodiment is identical with embodiment 1, does not repeat them here.
Finally should be noted that; the restriction of above embodiment only for illustration of the technical solution of the utility model but not to the utility model protection domain; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. a filter plates for electro-osmosis horizontal spring presser, comprises filter plate, main frame and secondary frame; Described filter plate is circular slab, arranges through hole in the middle part of it, and its excircle is provided with land; Described main frame is ring frame, and it is enclosed within described land; Described secondary frame is ring frame, and it is enclosed within described main frame; Gap between described main frame and described secondary frame is sealed by the 3rd press strip; Material cavity is provided with in described main frame; The tow sides of described filter plate are provided with filter screen, and described screen surface is provided with the drainage lines for diversion; The both sides of described material cavity are provided with filter cloth, and described filter cloth is connected with the tow sides of described filter plate, described main frame and described secondary frame; The inner ring position on the surface that described main frame contacts with described filter plate is provided with the annular breach for draining, and the gap spacing of described annular breach is 1mm ~ 3mm; It is characterized in that: be also provided with battery lead plate, comprise minus plate and positive plate, be located at the both sides of filter plate respectively, and be in the inner side of filter cloth; Described minus plate and positive plate are respectively equipped with binding post.
2. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, is characterized in that: the material of described battery lead plate is 316 model stainless steels after titanizing process, and its thickness is not less than 0.8mm.
3. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, is characterized in that being provided with through hole on battery lead plate, and its size is corresponding with the through hole in the middle part of position and filter plate; And electrode plate surface evenly opens the circular hole that diameter is 5mm, percent opening is 30% ~ 35%.
4. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, is characterised in that: described binding post adopts silver-plated 316L corrosion resistant plate, is welded on described battery lead plate.
5. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, is characterized in that: the position alignment parallel to each other of described minus plate and positive plate.
6. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, it is characterized in that: the gap spacing of described annular breach is 2mm, described filter plates is provided with the drainage channel be connected with described annular inner side, and the caliber of described drainage channel is 5mm ~ 15mm.
7. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 1, it is characterized in that: the edge of described filter plate and described secondary frame, and the position relative with described secondary frame at described filter plate all offers spring groove, is provided with spring in described spring groove.
8. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 7, it is characterized in that: the front of described main frame and described secondary frame all offers groove, described filter cloth is pressed in described groove by the 4th press strip, and the filter cloth being connected to described main frame and described secondary frame front forms the slope of adjustable obliquity.
9. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 8, is characterized in that: described filter plate is provided with the pressure ring for described filter cloth being locked at described filter plate surface near the circumference of described through hole.
10. the filter plates of a kind of electro-osmosis horizontal spring presser according to claim 9, it is characterized in that: between described pressure ring and described filter plate, and on described filter plate, offer groove, described filter cloth is pressed in described groove by the first press strip, the front of described main frame is provided with for cushioning the buffer groove shrinking filter cloth, the edge at the described filter plate back side is provided with the second press strip for compressing filter cloth, and described second press strip is fixed by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941074.5U CN205109127U (en) | 2015-11-23 | 2015-11-23 | Filter plate group of horizontal spring squeezer of electroosmosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941074.5U CN205109127U (en) | 2015-11-23 | 2015-11-23 | Filter plate group of horizontal spring squeezer of electroosmosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205109127U true CN205109127U (en) | 2016-03-30 |
Family
ID=55564776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520941074.5U Active CN205109127U (en) | 2015-11-23 | 2015-11-23 | Filter plate group of horizontal spring squeezer of electroosmosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205109127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113491890A (en) * | 2020-04-07 | 2021-10-12 | 北京建筑大学 | Plate frame filter-pressing electric deep dehydration filter plate and integrated device using same |
-
2015
- 2015-11-23 CN CN201520941074.5U patent/CN205109127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113491890A (en) * | 2020-04-07 | 2021-10-12 | 北京建筑大学 | Plate frame filter-pressing electric deep dehydration filter plate and integrated device using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108101340B (en) | High-dryness sewage sludge dewatering method with double effects of mechanical squeezing and air flow carrying | |
| CN104138675B (en) | A kind of elasticity Filter pressing board of electro-osmosis high pressure mud, press filtration assembly and filter press | |
| CN104030543B (en) | A kind of for electro-osmosis mud membrane filter plate, membrane filter pressing device and pressure filter | |
| CN102267794B (en) | Sludge dehydrator | |
| CN201245539Y (en) | Squeezing plate of squeezing dehydrator | |
| CN104030541B (en) | A kind of for electro-osmosis mud membrane filter plate, membrane filter pressing device and pressure filter | |
| CN205115110U (en) | Filter is suppressed to electroosmosis high pressure | |
| CN102652888B (en) | Filter plate group of horizontal type spring squeezer | |
| CN105936579B (en) | A kind of Filter pressing board, filters pressing component and squeezer for sludge high-drying dehydration equipment | |
| CN104587718A (en) | Variable-capacitance plate frame dehydration device for sludge | |
| CN204261405U (en) | A kind of elasticity Filter pressing board of electro-osmosis high pressure mud, press filtration assembly and filter press | |
| CN104058567B (en) | A kind of electrodialysis oxidation style barrier film sheet frame sludge dewatering equipment | |
| CN205109127U (en) | Filter plate group of horizontal spring squeezer of electroosmosis | |
| CN101088944A (en) | Enhanced sludge dewatering machine | |
| CN102897990A (en) | Direct-current separation plate frame applied to dehydrator or oil removing machine | |
| CN205152036U (en) | Sludge thickener and drier combination | |
| CN202590452U (en) | Filter plate group of horizontal spring presser | |
| CN218011389U (en) | Material extrusion dewatering system | |
| CN104030542B (en) | A kind of filter pressing sludge method of diaphragm filter press | |
| CN215559600U (en) | High-efficient belt filter press | |
| CN204058210U (en) | A kind of membrane filter plate for press filtration mud, barrier film press filtration unit, barrier film filter-pressing device and pressure filter | |
| CN205907160U (en) | A filter plate , filter -pressing subassembly and pressure filter for mud high level cadre dewatering equipment | |
| CN109650698A (en) | A kind of intermittent electro-osmosis belt squeezing sludge dewatering equipment | |
| CN205398427U (en) | Sludge dewatering metal sheet frame filter pressing device of electrified dialysis function | |
| CN105293863A (en) | Sludge condensation dewatering all-in-one machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181113 Address after: 362200 No. 4 Kaiyuan Road, Jingbian Village, Cizao Town, Jinjiang City, Quanzhou City, Fujian Province Patentee after: Quanzhou Chuanglu Machinery Industry and Trade Co., Ltd. Address before: 528000 Workshop of Zinanaobian Industrial Zone, Nanzhuang Town, Chancheng District, Foshan City, Guangdong Province Patentee before: Foshan JKD Filtration Equipment Co., Ltd. |