CN108394871A - A kind of industrial sulphuric acid solid-liquid separation system - Google Patents
A kind of industrial sulphuric acid solid-liquid separation system Download PDFInfo
- Publication number
- CN108394871A CN108394871A CN201810322942.XA CN201810322942A CN108394871A CN 108394871 A CN108394871 A CN 108394871A CN 201810322942 A CN201810322942 A CN 201810322942A CN 108394871 A CN108394871 A CN 108394871A
- Authority
- CN
- China
- Prior art keywords
- retort
- module
- filtering module
- liquid
- sulphuric acid
- 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.)
- Granted
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000007788 liquid Substances 0.000 title claims abstract description 57
- 238000000926 separation method Methods 0.000 title claims abstract description 18
- 235000011149 sulphuric acid Nutrition 0.000 title claims abstract description 17
- 239000001117 sulphuric acid Substances 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 238000005213 imbibition Methods 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 9
- 210000002268 wool Anatomy 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 7
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052683 pyrite Inorganic materials 0.000 abstract description 6
- 239000011028 pyrite Substances 0.000 abstract description 6
- 238000006477 desulfuration reaction Methods 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 abstract description 2
- 240000001980 Cucurbita pepo Species 0.000 abstract description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- 235000020354 squash Nutrition 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000002893 slag Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention belongs to sulphuric acid plant field, specifically a kind of industrial sulphuric acid solid-liquid separation system, the present invention includes retort, filtering module and extruding module；The top of filtering module is fixedly connected by No.1 rotating bar with the shaft of motor, and the lower end of filtering module is rotatably installed on the inner surface of retort lower plate；Module is squeezed to realize filter module liquid discharge in the block by squeezing filtering module surface；The side surface bottom of retort is equipped with No.1 liquid outlet, and retort lower plate center is equipped with No.1 inlet, and retort lower plate is equipped with No.1 discharge port.Present invention is mainly used for the aqueous solutions to pyrite burning flue gas to carry out desulfurization process, can carry out squash type filtering to sulfuric acid waste, improve desulfuration efficiency.
Description
Technical field
The invention belongs to sulphuric acid plant field, specifically a kind of industrial sulphuric acid solid-liquid separation system.
Background technology
During pyrite-based sulfuric acid production, need to by troilite in roasting kiln roasting, in order to make full use of waste heat in roasting process,
It is energy-saving, waste heat boiler and steam turbine power generation are generally set, to realize the coproduction of acid, heat, electricity.In pyrite-based sulfuric acid production process
In, since roaster and waste heat boiler generate a large amount of waste residue, solid waste, that is, high-temperature roasting slag that pyrite-based sulfuric acid production generates
Always perplex enterprise production management, field management and environmental protection comprehensive treatment problem, main cause is roaster and remaining
The fired slags temperature of heat boiler institute output is high (850 DEG C -1100 DEG C), and fine size (- 500 mesh of 200 mesh), original processing mode is big
Mostly hydraulic discharged slag formula or slag is directly carried out water leaching humidification, cause production scene airborne dust and the multiple pollution of water, vapour, dirt, because water,
Vapour, dirt middle acid substance are more, very serious to the corrosion of field device, and prodigious pollution is caused to environment.And due to height
Warm slag directly carries out water drenching or hydraulic discharged slag causes a large amount of water resource waste, and polluted source, if carrying out water process, input is taken
With high, lead to a large amount of heat losses.If desired slag after hydraulic discharged slag or water leaching humidification is re-used and must be carried out
Drying and processing, drying and processing input cost are high；Meanwhile water absorption method detaches sulfuric acid often because without suitable device,
And cause sulfuric acid liquid purification efficiency low, the problems such as waste residue rate of recovery is low.
Also occur in the prior art sulfuric acid impurity separation technical solution, such as application No. is 201210131455.8 one
Chinese patent discloses a kind of pyrite-based sulfuric acid production deslagging heat recovery method and realizes the device systems of this method, roaster discharge
High-temperature dusty gas through residual heat boiler for exchanging heat, gather dust after be discharged, gather dust successively through cyclone separator and electric precipitator, roaster
And the high-temperature ash of waste heat boiler discharge is cooled down through the first high temperature material cooling apparatus, while being arranged by cyclone separator and electric precipitator
The high-temperature ash gone out is cooled down through the second high temperature material cooling apparatus, and lime-ash after cooling is delivered to destination by closed conveying device
For recycling, while the cooling water heated through high temperature material cooling apparatus is directly entered waste heat boiler deoxidation water charging system, reaches heat
Amount recycling purpose.Although the technical solution, which can be realized, reduces the pollution that sulfuric acid residue is brought, which can not
Impurity is effectively filtered；The technical solution cannot detach sulfuric acid liquid and impurity simultaneously；So that the use of the invention
It is restricted.
Invention content
In order to make up for the deficiencies of the prior art, the present invention proposes a kind of industrial sulphuric acid solid-liquid separation system, master of the present invention
It is used to carry out desulfurization process to the aqueous solution of pyrite burning flue gas, squash type filtering can be carried out to sulfuric acid waste.This hair
The bright filter efficiency for improving the present invention to sulfuric acid waste by squeezing module with filtering module cooperation；Meanwhile the present invention passes through
Mounting cup and ball, compression roller coordinate to improve the service life for squeezing module；Improve desulfuration efficiency.
The technical solution adopted by the present invention to solve the technical problems is：The present invention proposes a kind of industrial sulphuric acid solid-liquid point
From system, including retort, filtering module and extruding module；The top of the filtering module passes through No.1 rotating bar and motor
Shaft is fixedly connected, and the lower end of filtering module is rotatably installed on the inner surface of retort lower plate；The extruding module passes through
Filtering module surface is squeezed to realize filter module liquid discharge in the block；The side surface bottom of the retort is equipped with
No.1 liquid outlet, retort lower plate center are equipped with No.1 inlet, and retort lower plate is equipped with No.1 discharge port；The mistake
It filters inside modules and is equipped with liquid supply pipe, the surface of liquid supply pipe is equipped with No. two inlets；The liquid supply pipe is for coordinating No.1 inlet
It uses；
The filtering module includes rotor plate, rotating cylinder and imbibition unit, and the rotor plate is for driving rotating cylinder
Rotation is equipped with No. two openings in the rotating cylinder, imbibition unit is equipped in No. two openings, the imbibition unit is used for will
Liquid inside rotating cylinder carries out absorption storage；
Sulfuric acid waste is flowed by No.1 inlet in liquid supply pipe, and the sulfuric acid waste in liquid supply pipe passes through No. two inlets
It is flowed into the inside of Filtration Filtration module, filtering module is filtered by being filtered to sulfuric acid waste with module cooperation is squeezed
Sulfuric acid liquid afterwards is flowed into retort, and sulfuric acid liquid is collected by No.1 liquid outlet.
Preferably, the imbibition unit is wool brush, sponge one kind in the block, and the sponge block uses polyvinyl alcohol material
Material；When imbibition unit is wool brush or sponge block, imbibition unit can be filtered the sulfuric acid waste inside rotating cylinder
Separation；The sponge block uses polyvinyl alcohol material, and sponge block can be made to have the spy of high-hydroscopicity, surface without apparent stomata
Point to reduce the filter residue amount on sponge block surface, and then can make sponge block is continual and steady to be filtered to sulfuric acid waste.
Preferably, it is clockwise throwing positioned at the position of rotating cylinder outer layer, its cross sectional shape in the sponge block
Object is linear, and when rotating cylinder rotates counterclockwise, squeezing module smooth can squeeze sponge block, to make in sponge block
Sulfuric acid liquid energy enough fully filtered；It is semicircular No.1 that clockwise side surface, which is equipped with section, in the sponge block
Groove, No.1 groove squeeze module to the extruding efficiency of sponge block, Jin Erti for making sponge block convenient for compression, to improve
High filter efficiency of the present invention to sulfuric acid waste.
Preferably, the extruding module includes mounting cup, compression roller, sliding extension bar and spring, and the mounting cup passes through
Sliding extension bar is fixedly mounted on the inner wall of retort, the outer layer of sliding extension bar is cased with spring；The compression roller passes through two
Number rotating bar is rotatably installed in the inside of mounting cup, and it is No. two arc-shaped annulus that the side wall of the compression roller, which is equipped with section,
Slot, the mounting cup inner wall are equipped with hemisphere type groove, and ball is equipped between the hemisphere type groove and No. two annular grooves.The ball
For making to act power between compression roller and the inner wall of mounting cup, to reduce the abrasion of No. two rotating bars, and then improve
Squeeze the service life of module.
The beneficial effects of the invention are as follows：
1. a kind of industrial sulphuric acid solid-liquid separation system of the present invention, the present invention include retort, filtering module
With extruding module；The filtering module is used to be filtered separation to sulfuric acid waste, the extruding module by with filtering module
Coordinate to improve filter efficiency of the filtering module to sulfuric acid waste, to improve the filter efficiency of the present invention.
2. a kind of industrial sulphuric acid solid-liquid separation system of the present invention, the filtering module includes rotor plate, rotation circle
Cylinder and imbibition unit, motor drives rotating cylinder to rotate by rotor plate, and imbibition unit is by the sulfuric acid liquid inside rotating cylinder
Discharge；Imbibition unit is wool brush, sponge one kind in the block, for enable imbibition unit to the sulfate liquid of rotating cylinder into
Row fully absorbs；When imbibition unit uses sponge block, the outer layer position of sponge block is parabola shaped, for enabling extruding module
It is enough smooth that sponge block is squeezed, it is hit to prevent from squeezing between module and sponge block, and then improve sponge
The service life of block.
3. a kind of industrial sulphuric acid solid-liquid separation system of the present invention, the extruding module include mounting cup, compression roller,
Sliding extension bar and spring, compression roller is for squeezing imbibition unit；Mounting cup and sliding extension bar, spring are used for squeezing
Pressure roller is fixed；The side wall of the compression roller is equipped with No. two annular grooves, the inner wall of mounting cup is equipped with hemisphere type groove, described
It is provided with ball between No. two annular grooves and hemisphere type groove, to make to act power between compression roller and the inner wall of mounting cup,
Stress for reducing No. two rotating bars, and then improve the service life of No. two rotating bars.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the sectional view of the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is B partial enlarged views in Fig. 1；
In figure：Retort 1, squeezes module 3, No.1 rotating bar 21, No.1 liquid outlet 11, No.1 inlet at filtering module 2
12, No.1 discharge port 13,26, No. two inlets 211 of liquid supply pipe, rotor plate 22, rotating cylinder 23, imbibition unit 24, two are opened
Mouth 25, sponge block 241, No.1 groove 242, mounting cup 31, compression roller 32, the circle of rotating bar 34, two of sliding extension bar 33, two
Annular groove 35, ball 36.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific implementation mode is closed, the present invention is further explained.
As shown in Figure 1 to Figure 3, a kind of industrial sulphuric acid solid-liquid separation system of the present invention, including retort 1, filtering
Module 2 and extruding module 3；The top of the filtering module 2 is fixedly connected by No.1 rotating bar 21 with the shaft of motor, filtering
The lower end of module 2 is rotatably installed on the inner surface of 1 lower plate of retort；The extruding module 3 is by 2 surface of filtering module
It is squeezed to realize the liquid discharge in filtering module 2；The side surface bottom of the retort 1 is equipped with No.1 liquid outlet
11,1 lower plate center of retort is equipped with No.1 inlet 12, and 1 lower plate of retort is equipped with No.1 discharge port 13；The filtering
Module 2 is internally provided with liquid supply pipe 26, and the surface of liquid supply pipe 26 is equipped with No. two inlets 211；The liquid supply pipe 26 is used for unification
Number inlet 12 uses；
The filtering module 2 includes rotor plate 22, rotating cylinder 23 and imbibition unit 24, and the rotor plate 22 is for driving
23 rotation of rotating cylinder is equipped with No. two openings 25 in the rotating cylinder 23, imbibition unit 24 is equipped in No. two openings 25,
The imbibition unit 24 is used to the liquid inside rotating cylinder 23 carrying out absorption storage；
Sulfuric acid waste is flowed by No.1 inlet 12 in liquid supply pipe 26, and the sulfuric acid waste in liquid supply pipe 26 passes through No. two
Inlet 211 is flowed into the inside of Filtration Filtration module 2, filtering module 2 by with squeeze the cooperation of module 3 come to sulfuric acid waste into
Row filtering, filtered sulfuric acid liquid are flowed into retort 1, and sulfuric acid liquid is collected by No.1 liquid outlet 11.
As one embodiment of the present invention, the imbibition unit 24 is one kind in wool brush, sponge block 241, institute
It states sponge block 241 and uses polyvinyl alcohol material；When imbibition unit 24 is wool brush or sponge block 241, imbibition unit 24 can
Separation is filtered to the sulfuric acid waste inside rotating cylinder 23；The sponge block 241 uses polyvinyl alcohol material, can make
Sponge block 241 has the characteristics that high-hydroscopicity, surface without apparent stomata, to reduce the filter residue amount on 241 surface of sponge block, into
And it can make sponge block 241 is continual and steady to be filtered to sulfuric acid waste.
As one embodiment of the present invention, positioned at the position of 23 outer layer of rotating cylinder, its section in the sponge block 241
Face shape is clockwise parabola shaped, when rotating cylinder 23 rotates counterclockwise, squeeze that module 3 can be smooth to sponge
Block 241 is squeezed, to make the sulfuric acid liquid energy in sponge block 241 is enough fully to be filtered；It is square clockwise in the sponge block 241
To side surface be equipped with section be semicircular No.1 groove 242, No.1 groove 242 for make sponge block 241 convenient for compression,
To improve the extruding efficiency for squeezing module 3 to sponge block 241, and then improves the present invention and the filtering of sulfuric acid waste is imitated
Rate.
As one embodiment of the present invention, the extruding module 3 includes mounting cup 31, compression roller 32, sliding extension
Bar 33 and spring, the mounting cup 31 is fixedly mounted on by sliding extension bar 33 on the inner wall of retort 1, sliding extension bar 33
Outer layer be cased with spring；The compression roller 32 is rotatably installed in the inside of mounting cup 31, the extruding by No. two rotating bars 34
It is No. two arc-shaped annular grooves 35 that the side wall of roller 32, which is equipped with section, and 31 inner wall of the mounting cup is equipped with hemisphere type groove, institute
It states and is equipped with ball 36 between hemisphere type groove and No. two annular grooves 35.The ball 36 is used to make the interior of compression roller 32 and mounting cup 31
Power is acted between wall, to reduce the abrasion of No. two rotating bars 34, and then improves the service life for squeezing module 3.
When work, sulfuric acid waste is flowed by No.1 inlet 12 in liquid supply pipe 26, the sulfuric acid waste in liquid supply pipe 26
The inside of rotating cylinder 23 is flowed by No. two inlets 211, No. two imbibition units 24 absorb sulfuric acid waste；Motor
Rotating cylinder 23 is driven to rotate by No.1 rotating bar 21, compression roller 32 squeezes No. two imbibition units 24；Then two
Sulfuric acid liquid in number imbibition unit 24 is collected by No.1 liquid outlet 11；Finally, No.1 discharge port 13 is opened, suction pump will
Filter residue discharge in rotating cylinder 23 is collected.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (5)
1. a kind of industrial sulphuric acid solid-liquid separation system, it is characterised in that：Including retort (1), filtering module (2) and squeeze module
(3)；The top of the filtering module (2) is fixedly connected by No.1 rotating bar (21) with the shaft of motor, filtering module (2)
Lower end is rotatably installed on the inner surface of retort (1) lower plate；The extruding module (3) passes through to filtering module (2) surface
It is squeezed to realize the liquid discharge in filtering module (2)；The side surface bottom of the retort (1) goes out liquid equipped with No.1
Mouth (11), retort (1) lower plate center are equipped with No.1 inlet (12), and retort (1) lower plate is equipped with No.1 discharge port
(13)；The filtering module (2) is internally provided with liquid supply pipe (26), and the surface of liquid supply pipe (26) is equipped with No. two inlets (211)；Institute
Liquid supply pipe (26) is stated for coordinating No.1 inlet (12) to use；Wherein,
The filtering module (2) includes rotor plate (22), rotating cylinder (23) and imbibition unit (24), and the rotor plate (22) is used
In driving rotating cylinder (23) rotation, No. two openings (25) are equipped in the rotating cylinder (23), described No. two are open in (25)
Equipped with imbibition unit (24), the imbibition unit (24) is used to the internal liquid of rotating cylinder (23) carrying out absorption storage.
2. a kind of industrial sulphuric acid solid-liquid separation system according to claim 1, it is characterised in that：The imbibition unit (24)
For one kind in wool brush, sponge block (241), the sponge block (241) uses polyvinyl alcohol material.
3. a kind of industrial sulphuric acid solid-liquid separation system according to claim 2, it is characterised in that：The sponge block (241)
In be located at the position of rotating cylinder (23) outer layer, its cross sectional shape is clockwise parabola shaped；The sponge block (241)
In clockwise side surface be equipped with section be semicircular No.1 groove (242).
4. a kind of industrial sulphuric acid solid-liquid separation system according to claim 1, it is characterised in that：The extruding module (3)
Including mounting cup (31), compression roller (32), sliding extension bar (33) and spring, the mounting cup (31) passes through sliding extension bar
(33) it is fixedly mounted on the inner wall of retort (1), the outer layer of sliding extension bar (33) is cased with spring；The compression roller (32) is logical
Cross the inside that No. two rotating bars (34) are rotatably installed in mounting cup (31).
5. a kind of industrial sulphuric acid solid-liquid separation system according to claim 4, it is characterised in that：The compression roller (32)
It is No. two arc-shaped annular grooves (35) that side wall, which is equipped with section, and mounting cup (31) inner wall is equipped with hemisphere type groove, described
Ball (36) is equipped between hemisphere type groove and No. two annular grooves (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322942.XA CN108394871B (en) | 2018-04-11 | 2018-04-11 | Industrial sulfuric acid solid-liquid separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322942.XA CN108394871B (en) | 2018-04-11 | 2018-04-11 | Industrial sulfuric acid solid-liquid separation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108394871A true CN108394871A (en) | 2018-08-14 |
| CN108394871B CN108394871B (en) | 2019-12-13 |
Family
ID=63099959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810322942.XA Active CN108394871B (en) | 2018-04-11 | 2018-04-11 | Industrial sulfuric acid solid-liquid separation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108394871B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082941A (en) * | 2021-04-09 | 2021-07-09 | 成都中科绿生环境科技有限公司 | Application of polytetrafluoroethylene composite material in deodorization effect evaluation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258093Y (en) * | 1996-07-01 | 1997-07-23 | 陈聪海 | Structure of sewage and pure water treater |
| CN1436580A (en) * | 2002-02-06 | 2003-08-20 | 李正烨 | Drum dewatering filtering device with synthetic resin filamentary |
| CN104128045A (en) * | 2014-07-15 | 2014-11-05 | 蔡子辉 | Solid-liquid separating device and separating method |
-
2018
- 2018-04-11 CN CN201810322942.XA patent/CN108394871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258093Y (en) * | 1996-07-01 | 1997-07-23 | 陈聪海 | Structure of sewage and pure water treater |
| CN1436580A (en) * | 2002-02-06 | 2003-08-20 | 李正烨 | Drum dewatering filtering device with synthetic resin filamentary |
| CN104128045A (en) * | 2014-07-15 | 2014-11-05 | 蔡子辉 | Solid-liquid separating device and separating method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082941A (en) * | 2021-04-09 | 2021-07-09 | 成都中科绿生环境科技有限公司 | Application of polytetrafluoroethylene composite material in deodorization effect evaluation device |
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|---|---|
| CN108394871B (en) | 2019-12-13 |
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Effective date of registration: 20191112 Address after: 418200 Huaihua City, Hunan province Hongjiang District Rock Gate No. 01 Applicant after: Hunan Hengguang Technology Co., Ltd. Address before: 100043 Beijing City, Shijingshan District Jin Yuan Zhuang Road No. 5, North China University of Technology Applicant before: Yang Dapeng |
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