CN101856569B - Solvent purifying device in controlled release fertilizer production - Google Patents
Solvent purifying device in controlled release fertilizer production Download PDFInfo
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- CN101856569B CN101856569B CN2010102080106A CN201010208010A CN101856569B CN 101856569 B CN101856569 B CN 101856569B CN 2010102080106 A CN2010102080106 A CN 2010102080106A CN 201010208010 A CN201010208010 A CN 201010208010A CN 101856569 B CN101856569 B CN 101856569B
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- cell body
- filter
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- isolating cylinder
- solvent purifying
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- 239000002904 solvent Substances 0.000 title claims abstract description 45
- 239000003337 fertilizer Substances 0.000 title claims abstract description 31
- 238000013270 controlled release Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 81
- 210000005056 cell body Anatomy 0.000 claims description 49
- 238000011084 recovery Methods 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 14
- 239000006228 supernatant Substances 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 33
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 30
- 239000000463 material Substances 0.000 description 21
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical class CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 19
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 235000015097 nutrients Nutrition 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920000620 organic polymer Polymers 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Landscapes
- Fertilizers (AREA)
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a solvent purifying device in controlled release fertilizer production, comprising a tank body, a filter, an isolating barrel and a lower layer liquid return pipe; wherein the filter is welded with the tank body the side of which is provided with an upper layer liquid outlet, the upper end face of the isolating barrel is welded with the top plate of the tank body, the lower layer liquid return pipe penetrates the base plate of the tank body and is welded with the base plate, the straight pipe part of the lower layer liquid return pipe is arranged at the center of the isolating barrel, the upper end face of the lower layer liquid return pipe is 50-150mm lower than the lowerest point of the outlet pipe of the upper layer liquid outlet and is higher than the interface of upper layer liquid and lower layer liquid. The invention can realize high purity separation of two mixed liquids which are not mutually soluble, product quality can be improved, and production cost can be saved.
Description
Technical field
The invention belongs to the controlled-release fertilizer production equipment technical field, relate generally to the water and the solvent that can not dissolve each other and carry out isolated by filtration, thereby realize the equipment that solvent is purified.
Background technology
Film-coated controlled release fertilizer is to be the nuclear core with the granular chemical fertilizer; The top layer applies the inorganic substances or the organic polymer of one deck low aqueous solubility or microsolubility; Change the stripping property of chemical fertilizer nutrient, prolongation or control fertilizer nutrient discharge, and make the supply of soil nutrient and the new-type fertilizer formulation that crop needs fertile requirement to coordinate.The kind of film-coated controlled release fertilizer; Divide from coated fertilizer; Can be divided into inorganic matter coated fertilizer and organic polymer coated fertilizer; The former majority is with inorganic fertilizer that contains certain nutrient or soil conditioner and so on material, and the latter includes organic synthesis thing of organic polymer, low aqueous solubility or slightly solubility etc. as coated fertilizer.The organic polymer coating controlled-release fertilizer is widely used in aspects such as flowers, landscape plant, golf course because of its good nutrient controlled release properties, and effect very significantly.
Run into problem that two kinds of mixing materials that can not dissolve each other need separate (such as toluene and water or dichloroethanes and water) through regular meeting in the controlled-release fertilizer production process, especially tend to be mixed with solid insoluble (as be used for the granular chemical fertilizer nuclear core of coating and the impurity such as equipment anvil cinder in the production system) in the mixed liquor.Mostly the method that adopts at present is simple quiescent settling; Carry out the mode that overflow is reclaimed again, the solid impurity in the mixed liquor carries out isolated by filtration after need waiting until recovery again; This mask work is influenced by human factor; The interface of two kinds of liquid is not easy to grasp, and the purification precision is not high, and the separation of solid impurity simultaneously is also very complicated.Therefore, invent a kind of can the on-line filtration solid impurity, and can high-precision purity ground carry out the controlled-release fertilizer production solvent purifying device of fluid separation applications, help increasing work efficiency, improve the quality of product, save production cost simultaneously.
Summary of the invention
To the deficiency of prior art, the purpose of this invention is to provide the solvent purifying device in a kind of controlled-release fertilizer production.
Technical scheme of the present invention is:
Solvent purifying device in the controlled-release fertilizer production; Comprise cell body, filter, isolating cylinder and lower floor's liquid recovery tube; Said filter and side are provided with the cell body welding of supernatant liquid outlet; The top board welding of said isolating cylinder upper surface and cell body, said lower floor liquid recovery tube are passed the cell body base plate and are welded with base plate, and said lower floor liquid recovery tube straight-tube portion is positioned at isolating cylinder central authorities; 50-150mm is hanged down than supernatant liquid outlet outlet minimum point in said lower floor liquid recovery tube upper surface, but is higher than the levels liquid interface.
Aforesaid solvent purifying device, optimized technical scheme is: the center of said supernatant liquid outlet and cell body top board are at a distance of 150-200mm.
Aforesaid solvent purifying device, optimized technical scheme is: the filter screen part of said filter reaches the following 200-250mm of levels liquid interface.The filtering accuracy of the filter screen of said filter is 50-80 μ m.Directly discharge to prevent the inabundant sedimentation separation of the big liquid of density from the supernatant liquid outlet; Densification because of filter screen simultaneously can cushion the mixed liquor that adds, and avoids the adding liquid flow impact hindered falling separating effect because of mixed liquor.
Aforesaid solvent purifying device, optimized technical scheme is: the base plate of said isolating cylinder lower surface and cell body is at a distance of 150-200mm.
Aforesaid solvent purifying device, optimized technical scheme is: the sectional area of said isolating cylinder is 2.5-3 a times of lower floor's liquid recovery tube sectional area.Said filter bottommost is to the lower inlet distance h of isolating cylinder
4Be 600-800mm, make mixing material that enough layered buffer height arranged, thereby reach the purpose of purification.
Aforesaid solvent purifying device, optimized technical scheme is: side, said filter upper end also is provided with the mixed liquor import, as the import of solvent and water mixed liquid.
Aforesaid solvent purifying device, optimized technical scheme is: said isolating cylinder is straight-through pipe.
Aforesaid solvent purifying device, optimized technical scheme is: said cell body bottom also is provided with discharging hole.
Aforesaid solvent purifying device, optimized technical scheme is: the side plate central authorities of said cell body also are provided with visor, are fixedly formed by rectangular glass sheet, are used to observe liquid situation in the solvent purification groove.
Aforesaid solvent purifying device, optimized technical scheme is: the subnatant outlet(discharge) flange is located at subnatant recovery tube exit.
Utilize solvent purifying device of the present invention to carry out solvent and purify, principle is: the solvent that can not dissolve each other and the mixing material of water get into cell body after filter filters.Rely on the big two kind liquid natural separation little of gravity action density with density, density little on the upper strata, density big in lower floor.Beyond isolating cylinder, the big liquid of density flows backwards from the bottom, and is able to reclaim from lower floor's liquid recovery tube overflow suitable for reading to lower floor liquid outlet(discharge) flange in isolating cylinder the little liquid of density from bottom to top by the isolating cylinder retaining.Be isolated in the outer little liquid of density of isolating cylinder, go out from supernatant liquid outlet overflow.Suppose above-mentioned solvent purifying device structure at the middle and upper levels the liquid outlet position for apart from grooved top plate 200mm, so h
3Be fixed value, the density of supposing supernatant liquid is ρ
Little, lower floor's density of liquid is ρ
Greatly, according to pressure formula: ρ
GreatlyGh
2=ρ
LittleG (h
3-h
1)+ρ
GreatlyGh
1, as long as set the last open height h of subnatant recovery tube again
2Numerical value, just be not difficult to calculate the height h of levels liquid interface A-A
1Liquid level as shown in Figure 2 distributes and can find out, in the isolating cylinder is the pure big liquid of density, and upper strata liquid outlet discharge is the pure little liquid of density.
Utilize solvent purifying device of the present invention to carry out solvent and purify, can realize the on-line filtration in the mixed liquor separation process, and have the advantages that to be convenient to clear up, can increase work efficiency; Can realize that two kinds of mixing materials that can not dissolve each other carry out high-precision purity separation, can improve product quality, and can save production cost.
Description of drawings
Fig. 1 is the structural representation of solvent purifying device.
Fig. 2 is a solvent Purification principle schematic.
Wherein, 1 cell body, 2 filters, 3 mixed liquor imports, 4 isolating cylinders, the outlet of 5 supernatant liquids, 6 lower floor's liquid outlets, 7 lower floor's liquid recovery tubes, 8 visors, 9 discharging holes, h
1Be levels liquid interface height, h
2Be subnatant recovery tube upper surface height, h
3Be upper strata liquid liquid level, h
4The isolating cylinder end opening is to the filter bottom level, and the A-A face is the levels liquid interface.
The specific embodiment
Specify scheme of the present invention below in conjunction with embodiment and accompanying drawing, but protection domain is not by this restriction.
Solvent purifying device in the controlled-release fertilizer production; Structure is as shown in Figure 1: comprise cell body 1, filter 2, isolating cylinder 4 and lower floor's liquid recovery tube 7; Said filter 2 welds with the cell body 1 that the side is provided with supernatant liquid outlet 5; The top board welding of said isolating cylinder 4 upper surfaces and cell body 1, said lower floor liquid recovery tube 7 are passed cell body 1 base plate and are welded with base plate, and said lower floor liquid recovery tube 7 straight-tube portions are positioned at isolating cylinder 4 central authorities; Said lower floor liquid recovery tube 7 upper surfaces export the low 50-150mm of 5 outlet minimum points than supernatant liquid, but are higher than the levels liquid interface.
The center of said supernatant liquid outlet 5 and cell body 1 top board are at a distance of 150mm.
The filter screen part of said filter 2 reaches the following 200mm of levels liquid interface.
The base plate of said isolating cylinder 4 lower surfaces and cell body 1 is at a distance of 150mm.
The sectional area of said isolating cylinder 4 is 2.5 times of lower floor's liquid recovery tube 7 sectional areas, and said filter 2 bottommosts are to the lower inlet distance h of isolating cylinder 4
4Be 600mm.
The filtering accuracy of the filter screen of said filter 2 is 50 μ m.
The side plate central authorities of said cell body 1 are provided with visor 8.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but with the center of embodiment 1 different is said supernatant liquid outlet 5 and cell body 1 top board 200mm apart.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but reach the following 250mm of levels liquid interface with the filter screen part of embodiment 1 different is said filter 2.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but with the base plate of embodiment 1 different is said isolating cylinder 4 lower surfaces and cell body 1 at a distance of 200mm.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but are 3 times of lower floor's liquid recovery tube 7 sectional areas with the sectional area of embodiment 1 different is said isolating cylinder 4, and said filter 2 bottommosts are to the lower inlet distance h of isolating cylinder 4
4Be 800mm.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but different is that side, said filter 2 upper end also is provided with mixed liquor import 3 with embodiment 1.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but are 80 μ m with the filtering accuracy of embodiment 1 different the is filter screen of said filter 2.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but different is that said isolating cylinder 4 is straight-through pipe with embodiment 1.
Solvent purifying device in the controlled-release fertilizer production, structure are still as shown in Figure 1, but different is that said cell body 1 bottom also is provided with discharging hole 9 with embodiment 1.
Embodiment 10
The purifying plant of toluene and water, filtering accuracy≤50 μ m, overcurrent part material is 304 material stainless steels, treating capacity is 2 cubic meters/hours.
1, toluene and water purifying plant cell body 1 are processed by 304 material stainless steels, are of a size of 1200mm * 1200mm * 1500mm.
2, the mixed liquor import 3 of toluene and water is provided with the flange short circuit and links to each other with fast-open type filter 2, and is arranged on the side of filter, so that the cleaning filter screen.
3, filter 2 is weldingly connected with cell body 1.The filter screen part of filter reaches the following 210mm of interface of toluene and water, discharges to prevent the inabundant sedimentation separation of the big liquid of density; Selecting material is 304, and the filter screen of filtering accuracy≤50 μ m can cushion the toluene that adds and the mixed liquor of water, avoids liquid flow impact and the hindered falling separating effect.
4, filter 2 bottommosts are to the height h of the end opening of isolating cylinder 4
4Be designed to 1000mm, isolating cylinder 4 is the seamless pipe of 304 material diameter 57mm wall thickness 3.5mm, firmly is weldingly connected with the top board of cell body 1, and the base plate of lower surface and cell body 1 is at a distance of 200mm.
5, be that the subnatant recovery tube 7 that 304 Φ 38 * 3.5 (diameter 38mm wall thickness 3.5mm) seamless pipe is processed inserts in the isolating cylinder 4 by material, the upper surface is apart from bottom land size h
2Be 1200mm.
6, as shown in Figure 2: toluene outlet 5 is located at the cell body side, and center and cell body 1 top board are at a distance of 180mm.h
3=1280mm, h
2=1200mm, the toluene density of liquid is 0.886kg/L, the density of water is 1.0kg/L, can calculate the height h of the interface A-A of toluene and water according to pressure formula
1=578mm, lower floor are water, and the upper strata is a toluene.
7, the outlet 6 of water interlinks with water recovery tube 7, manages blue short circuit and passes cell body 1.
Embodiment 11
The purifying plant of dichloroethanes and water, filtering accuracy≤60 μ m, it is 304 stainless steels that device is made material, treating capacity is 5 cubic meters/hours.
1, dichloroethanes and water purifying plant cell body 1, material is 304 stainless steels, is of a size of 2000mm * 2000mm * 1800mm.
2, the mixed liquor import 3 of dichloroethanes and water is provided with the flange short circuit and links to each other with fast-open type filter 2, and is arranged on the side of filter, so that the cleaning filter screen.
3, filter 2 is weldingly connected with cell body 1.The filter screen part of filter reaches the following 250mm of interface of dichloroethanes and water, discharges to prevent the inabundant sedimentation separation of the big liquid of density; Selecting material is 304, and the filter screen of filtering accuracy≤60 μ m can cushion the dichloroethanes that adds and the mixed liquor of water, avoids liquid flow impact and the hindered falling separating effect.
4, filter 2 bottommosts are to the height h of the end opening of isolating cylinder 4
4Be designed to 1200mm, isolating cylinder 4 is the seamless pipe of 304 material diameter 89mm wall thickness 4.5mm, firmly is weldingly connected with the top board of cell body 1, and the base plate of lower surface and cell body 1 is at a distance of 180mm.
5, be that the subnatant recovery tube 7 that 304 Φ 38 * 3 (diameter 38mm wall thickness 3mm) seamless pipe is processed inserts in the isolating cylinder 4 by material, the upper surface is apart from bottom land h
2=1475mm.
6, as shown in Figure 2: the outlet 5 of separating water is located at the cell body side, and center and cell body 1 top board are at a distance of 200mm.h
3=1575mm, h
2=1475mm, the dichloroethanes density of liquid is 1.17kg/L, the density of water is 1.0kg/L, can calculate the height h of the interface A-A of dichloroethanes and water according to pressure formula
1=886mm, upper strata liquid are water, and subnatant is a dichloroethanes.
7, the outlet 6 of dichloroethanes interlinks with recovery tube 7, manages blue short circuit and passes cell body 1.
Embodiment 12
The purifying plant of dichloroethanes and water, filtering accuracy≤80 μ m, it is 304 stainless steels that device is made material, treating capacity is 10 cubic meters/hours.
1, dichloroethanes and water purifying plant cell body 1, material is 304 stainless steels, is of a size of 3000mm * 3000mm * 2000mm.
2, the mixed liquor import 3 of dichloroethanes and water is provided with the flange short circuit and links to each other with fast-open type filter 2, and is arranged on the side of filter, so that the cleaning filter screen.
3, filter 2 is weldingly connected with cell body 1.The filter screen part of filter reaches the following 220mm of interface of dichloroethanes and water, discharges to prevent the inabundant sedimentation separation of the big liquid of density; Selecting material is 304, and the filter screen of filtering accuracy≤80 μ m can cushion the dichloroethanes that adds and the mixed liquor of water, avoids liquid flow impact and the hindered falling separating effect.
4, filter 2 bottommosts are to the height h of the end opening of isolating cylinder 4
4Be designed to 1200mm, isolating cylinder 4 is the seamless pipe of 304 material diameter 133mm wall thickness 4.5mm, firmly is weldingly connected with the top board of cell body 1, and the base plate of lower surface and cell body 1 is at a distance of 180mm.
5, be that the subnatant recovery tube 7 that 304 Φ 57 * 3.5 (diameter 57mm wall thickness 3.5mm) seamless pipe is processed inserts in the isolating cylinder 4 by material, the upper surface is apart from bottom land 1680mm.
6, as shown in Figure 2: the outlet 5 of separating water is located at the cell body side, and center and cell body 1 top board are at a distance of 200mm.h
3=1750mm, h2=1680mm, the dichloroethanes density of liquid is 1.17kg/L, the density of water is 1.0kg/L, can calculate the height h of the interface A-A of dichloroethanes and water according to pressure formula
1=1268mm, upper strata liquid are water, and subnatant is a dichloroethanes.
7, the outlet 6 of dichloroethanes interlinks with recovery tube 7, manages blue short circuit and passes cell body 1.
Claims (9)
1. the solvent purifying device in the controlled-release fertilizer production; It is characterized in that: comprise cell body (1), filter (2), isolating cylinder (4) and lower floor's liquid recovery tube (7); Said filter (2) welds with the said cell body (1) that the side is provided with supernatant liquid outlet (5); The top board welding of said isolating cylinder (4) upper surface and cell body (1), said lower floor liquid recovery tube (7) are passed cell body (1) base plate and are welded with said base plate, and said lower floor liquid recovery tube (7) straight-tube portion is positioned at isolating cylinder (4) central authorities; Said lower floor liquid recovery tube (7) upper surface is than the low 50-150mm of outlet minimum point of supernatant liquid outlet (5); But be higher than the levels liquid interface, the sectional area of said isolating cylinder (4) is 2.5-3 a times of lower floor's liquid recovery tube (7) sectional area, and said filter (2) bottommost is to the distance h of the lower inlet of isolating cylinder (4)
4Be 600-800mm.
2. the described solvent purifying device of claim 1 is characterized in that: the center of said supernatant liquid outlet (5) and cell body (1) top board be 150-200mm apart.
3. the described solvent purifying device of claim 1, it is characterized in that: the filter screen part of said filter (2) reaches the following 200-250mm of levels liquid interface.
4. the described solvent purifying device of claim 1 is characterized in that: the base plate of said isolating cylinder (4) lower surface and cell body (1) is at a distance of 150-200mm.
5. claim 1 or 3 described solvent purifying devices is characterized in that: side, said filter (2) upper end also is provided with mixed liquor import (3).
6. claim 1 or 3 described solvent purifying devices, it is characterized in that: the filtering accuracy of the filter screen of said filter (2) is 50-80 μ m.
7. claim 1 or 4 described solvent purifying devices is characterized in that: said isolating cylinder (4) is straight-through pipe.
8. the arbitrary described solvent purifying device of claim 1-4, it is characterized in that: said cell body (1) bottom also is provided with discharging hole (9).
9. the arbitrary described solvent purifying device of claim 1-4, it is characterized in that: the side plate central authorities of said cell body (1) also are provided with visor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102080106A CN101856569B (en) | 2009-11-20 | 2010-06-12 | Solvent purifying device in controlled release fertilizer production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910225055 | 2009-11-20 | ||
| CN200910225055.1 | 2009-11-20 | ||
| CN2010102080106A CN101856569B (en) | 2009-11-20 | 2010-06-12 | Solvent purifying device in controlled release fertilizer production |
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|---|---|
| CN101856569A CN101856569A (en) | 2010-10-13 |
| CN101856569B true CN101856569B (en) | 2012-09-05 |
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Citations (6)
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| US4039458A (en) * | 1974-11-08 | 1977-08-02 | Rhone-Poulenc Industries | Apparatus for separation by decantation |
| CN1127671A (en) * | 1994-10-22 | 1996-07-31 | 赫彻斯特股份公司 | Process and apparatus for the recovery of water-immiscible solvents |
| CN2545186Y (en) * | 2002-04-27 | 2003-04-16 | 冯运红 | Filter type oil-water separator |
| CN1428184A (en) * | 2002-12-04 | 2003-07-09 | 中国石油化工股份有限公司 | Oil-water separator with heat exchange function |
| CN101306852A (en) * | 2008-05-13 | 2008-11-19 | 苏州工业园区姑苏科技有限公司 | Oil-water separation apparatus |
| CN101406768A (en) * | 2008-11-13 | 2009-04-15 | 林英姿 | Unpowered water-oil separating method and apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1208897A1 (en) * | 2000-11-21 | 2002-05-29 | Epcon Norge AS | Combined degassing and flotation tank |
| JP2002320801A (en) * | 2001-04-24 | 2002-11-05 | Masanori Shigetomi | Garbage and oil separating and recovering apparatus |
-
2010
- 2010-06-12 CN CN2010102080106A patent/CN101856569B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039458A (en) * | 1974-11-08 | 1977-08-02 | Rhone-Poulenc Industries | Apparatus for separation by decantation |
| CN1127671A (en) * | 1994-10-22 | 1996-07-31 | 赫彻斯特股份公司 | Process and apparatus for the recovery of water-immiscible solvents |
| CN2545186Y (en) * | 2002-04-27 | 2003-04-16 | 冯运红 | Filter type oil-water separator |
| CN1428184A (en) * | 2002-12-04 | 2003-07-09 | 中国石油化工股份有限公司 | Oil-water separator with heat exchange function |
| CN101306852A (en) * | 2008-05-13 | 2008-11-19 | 苏州工业园区姑苏科技有限公司 | Oil-water separation apparatus |
| CN101406768A (en) * | 2008-11-13 | 2009-04-15 | 林英姿 | Unpowered water-oil separating method and apparatus |
Non-Patent Citations (1)
| Title |
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| JP特开2002-320801A 2002.11.05 |
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Effective date of registration: 20240130 Address after: 276700 Xingda West Street, Linshu County, Linyi City, Shandong Province, No. 19 Patentee after: KINGENTA ECOLOGICAL ENGINEERING GROUP Co.,Ltd. Country or region after: China Patentee after: LIAONING KINGENTA ECOLOGICAL ENGINEERING CO.,LTD. Address before: 276700 Xingda West Street, Linshu County, Linyi City, Shandong Province, No. 19 Patentee before: KINGENTA ECOLOGICAL ENGINEERING GROUP Co.,Ltd. Country or region before: China |
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