CN110565766B - Gypsum slurry flow guiding system - Google Patents
Gypsum slurry flow guiding system Download PDFInfo
- Publication number
- CN110565766B CN110565766B CN201910794244.4A CN201910794244A CN110565766B CN 110565766 B CN110565766 B CN 110565766B CN 201910794244 A CN201910794244 A CN 201910794244A CN 110565766 B CN110565766 B CN 110565766B
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- China
- Prior art keywords
- slope
- gypsum slurry
- diversion
- vacuum belt
- gypsum
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- 239000010440 gypsum Substances 0.000 title claims abstract description 72
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 72
- 239000002002 slurry Substances 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 10
- 230000003075 superhydrophobic effect Effects 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 6
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
The invention discloses a gypsum slurry diversion system which is arranged below a vacuum belt dehydrator, wherein the gypsum slurry diversion system comprises a slope part and a diversion part, the slope part and the diversion part are arranged along the length direction of the vacuum belt dehydrator, the diversion part is arranged at the tail end of the vacuum belt dehydrator, the number of the slope parts is not less than one, and the slope parts are arranged close to the diversion part, so that gypsum slurry falling through the vacuum belt dehydrator is led to a cofferdam along the slope part and the diversion part; the lowest part of slope portion and drainage portion is provided with filtering portion, filtering portion passes through the pipeline intercommunication with the dehydration building trench. The gypsum slurry diversion system provided by the invention has reasonable structure and convenient operation, and more than 90% of gypsum slurry is directly diverted and discharged into the trench of the dewatering building, so that the gypsum slurry is prevented from flowing into the cofferdam to form accumulation; furthermore, set up the slope at slope portion, set up hydrophobic coating at slope portion, avoid the pile up of gypsum thick liquid on the slope, improve the smooth and easy nature of gypsum thick liquid flow.
Description
Technical Field
The invention belongs to the technical field of wet flue gas desulfurization of thermal power plants, and relates to a gypsum slurry diversion system.
Background
A main power generation mode of a thermal power plant is coal-fired thermal power generation, and a large amount of flue gas containing harmful substances, such as sulfur dioxide, is generated by burning coal. With the development of the power industry, the pollution of sulfur dioxide to the environment is increasingly serious. In order to eliminate environmental pollution, limestone wet desulfurization technology is commonly adopted in power plants, and the technology has higher desulfurization efficiency. During operation, limestone powder reacts with sulfur dioxide in the flue gas in the desulfurization reaction tower, so that about 90% of sulfur dioxide in the flue gas is eliminated, and gypsum slurry with the water content of 80% is generated.
In order to enable the gypsum slurry to be used in other fields, such as construction, it is necessary to dehydrate the gypsum slurry to a dry gypsum having a water content of less than 10%. At present, the main dehydration mode adopts a vacuum dehydration mode, equipment is a vacuum belt dehydrator, gypsum slurry which is generated in a desulfurization reaction tower and contains about 80% of water is firstly changed into gypsum slurry with 50% of water content through a hydrocyclone, and then the gypsum slurry is sent to the vacuum belt dehydrator, and the gypsum slurry with 50% of water content is changed into a gypsum product with less than 10% of water content by adopting a vacuum dehydration method.
In the long-term operation process of the vacuum belt dehydrator, a large amount of gypsum is accumulated in the cofferdam, and the maximum thickness of the gypsum is 43cm, so that the operation, the normal inspection of maintenance personnel and the safety of equipment are affected; meanwhile, a large amount of gypsum accumulated in the cofferdam does not meet the requirements of standardized construction; moreover, the regular cleaning difficulty of gypsum in the cofferdam is high, and the labor intensity of operators is increased intangibly.
Therefore, there is a need to design a gypsum slurry diversion system that solves the existing technical problems.
Disclosure of Invention
The invention aims to solve at least part of the technical problems in the prior art to a certain extent, and provides a gypsum slurry diversion system which has reasonable structure and convenient operation, and can directly diversion and discharge more than 90% of gypsum slurry into a dewatering building trench to avoid forming accumulation in a cofferdam; furthermore, set up the slope at slope portion, set up hydrophobic coating at slope portion, avoid piling up on the slope of gypsum thick liquid, improve the smooth and easy nature that the gypsum thick liquid flows, have good spreading value.
In order to solve the technical problems, the invention provides a gypsum slurry diversion system which is arranged below a vacuum dehydrator and comprises a slope part and a diversion part, wherein the slope part and the diversion part are arranged along the length direction of the vacuum belt dehydrator, the diversion part is arranged at the tail end of the vacuum belt dehydrator, and the number of the slope parts is not less than one and is arranged next to the diversion part, so that gypsum slurry falling through the vacuum belt dehydrator is led to a cofferdam along the slope part and the diversion part; the lowest part of slope portion and drainage portion is provided with filtering portion, filtering portion passes through the pipeline intercommunication with the dehydration building trench.
In some embodiments, the ramp portion includes a first ramp, a second ramp, and an engagement portion, and the filter portion is disposed at the engagement portion.
In some embodiments, the first and second ramps are at an angle of no less than 18 ° to the horizontal.
In some embodiments, the engagement portion is a horizontal groove structure, and the filter portion is disposed on top of the engagement portion.
In some embodiments, the gypsum slurry diversion system further includes a vibrating portion disposed within the groove structure of the engagement portion.
In some embodiments, the ramp is cast from concrete, the surface of which is coated with a hydrophobic coating.
In some embodiments, the drainage portion is spliced from obliquely disposed structural plates to guide gypsum slurry falling from the tail end of the vacuum belt dehydrator.
In some embodiments, the surface of the structural panel is coated with a superhydrophobic coating.
In some embodiments, the superhydrophobic coating comprises: a silicon-based coating material, a PTFE-based coating material, or a carbonaceous material.
In some embodiments, the vibration portion is an ultrasonic generator.
The invention has the beneficial effects that:
the gypsum slurry diversion system provided by the invention has reasonable structure and convenient operation, and more than 90% of gypsum slurry is directly diverted and discharged into the trench of the dewatering building, so that the gypsum slurry is prevented from flowing into the cofferdam to form accumulation; furthermore, set up the slope at slope portion, set up hydrophobic coating at slope portion, avoid piling up on the slope of gypsum thick liquid, improve the smooth and easy nature that the gypsum thick liquid flows, have good spreading value.
Drawings
The above-described advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the invention, wherein:
FIG. 1 is a schematic diagram of a gypsum slurry diversion system in accordance with the present invention;
FIG. 2 is an enlarged view of a portion of the ramp portion of the present invention;
fig. 3 is a schematic diagram of an embodiment of a gypsum slurry diversion system of the present invention.
In the drawings, the components represented by the respective reference numerals are as follows:
100. a gypsum slurry diversion system;
10. a slope portion; 11. a first ramp; 12. a second ramp; 13. a joint portion; 20. a drainage part; 21. a structural panel; 30. a cofferdam; 40. a filtering part; 50. dewatering building trench; 60. a vibration section;
200. a vacuum belt dehydrator.
Detailed Description
Fig. 1-3 are schematic illustrations of a gypsum slurry diversion system as described herein, and the present invention is described in detail below with reference to the specific embodiments and figures.
The examples described herein are specific embodiments of the present invention, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the invention to the embodiments and scope of the invention. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification of the present application, including those adopting any obvious substitutions and modifications to the embodiments described herein.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present invention, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structures of the components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
The structural schematic diagram of the gypsum slurry diversion system described in the application is disposed below a vacuum belt dehydrator 200, as shown in fig. 1 to 3, the gypsum slurry diversion system 100 includes a slope portion 10 and a diversion portion 20, the slope portion 10 and the diversion portion 20 are disposed along the length direction of the vacuum belt dehydrator 200, the diversion portion 20 is disposed at the tail end of the vacuum belt dehydrator 200, and the number of the slope portions 10 is not less than one, and the slope portions 10 are disposed adjacent to the diversion portion 20, so that the gypsum slurry falling through the vacuum belt dehydrator 200 is guided to a cofferdam 30 along the slope portion 10 and the diversion portion 20; the lowest part of the slope part 10 and the drainage part 20 is provided with a filtering part 40, and the filtering part 40 is communicated with a dewatering building trench 50 through a pipeline.
As an embodiment of the present invention, the slope 10 includes a first slope 11, a second slope 12, and a connection portion 13, and the filtering portion 40 is disposed at the connection portion 13. Specifically, the engaging portion 13 is a horizontal groove structure, the top of the horizontal groove structure extends upward along the oblique direction to form a first slope 11 and a second slope 12, and the filtering portion 40 is disposed at the top of the engaging portion 13, that is, the filtering portion 40 is disposed at the top of the horizontal groove structure corresponding to the engaging portion 13. Under the drainage of the first slope 11 and the second slope 12, gypsum slurry flows downwards along the slope to the connection part 13, the filtering part 40 arranged at the connection part 13 blocks particles with larger diameters at the upper part, and the particles with smaller diameters are conveyed to the dewatering building trench 50 through the pipeline under the action of gravity.
As an aspect of this embodiment, the included angle between the first slope 11 and the second slope 12 and the horizontal plane is not less than 18 °. Preferably, the included angle between the first slope 11 and the second slope 12 and the horizontal plane is 25 °, the gypsum slurry flows down the slope to the connection portion 13 under the action of gravity, the filtering portion 40 disposed at the connection portion 13 blocks the particles with larger diameter at the upper portion, and the particles with smaller diameter are conveyed to the dewatering floor trench 50 through the pipeline under the action of gravity.
As another embodiment of the present invention, the gypsum slurry guiding system further comprises a vibration part 60 disposed in the groove structure of the joint part 13, as shown in fig. 3, the vibration part 60 is an ultrasonic generator, that is, the vibration part 60 is configured to generate an acoustic wave having an ultrasonic frequency higher than that of the acoustic wave.
In one embodiment, the vibratory portion 60 can transfer energy toward the gypsum slurry deposited on the filter portion 40. In one embodiment, the acoustic wave has a frequency above about 20 kilohertz, such as between about 20 kilohertz and about 200 kilohertz. In one embodiment, the vibrating portion 60 is configured to generate sound waves having an ultra-high frequency sonic frequency in the range of about 0.8 megahertz to about 2 megahertz. In one embodiment, the vibratory portion 60 can cause an acoustic streaming effect within the gypsum slurry. In addition, the vibration portion 60 can generate cavitation or bubble effect to promote the bouncing of particles with smaller diameters, and the implosion phenomenon caused by cavitation effect can help the bouncing of particles with smaller diameters and avoid accumulation, so as to smoothly convey the particles to the dewatering floor trench 50 through the pipeline.
In some embodiments, the vibration portion 60 may also be a sound sensor. In some embodiments, the vibrating portion 60 may be composed of a piezoelectric material sandwiched between a front metal and a rear metal and generate sound waves having an inverse piezoelectric effect. In some other embodiments, the vibrating portion 60 may be formed of a magnet and a coil in which sound waves are generated electromagnetically.
As another embodiment of the present invention, the slope portion 10 is formed by pouring concrete, and the surface of the slope portion is coated with a hydrophobic coating, so that the hydrophobic coating can prevent the gypsum slurry from being adhered to and accumulated on the surface of the slope portion 10, and the smoothness of the gypsum slurry flowing is effectively ensured.
As an embodiment of the present invention, the drainage part 20 is formed by splicing obliquely arranged structural plates 21, so as to guide the gypsum slurry falling from the tail end of the vacuum belt dehydrator. Specifically, the structural plate 21 is made of stainless steel, and the surface thereof is coated with a superhydrophobic coating. In some embodiments, the superhydrophobic coating comprises: a silicon-based coating material, a PTFE-based coating material, or a carbonaceous material. The hydrophobic coating may be applied in additive manufacturing operations, such as during a process for forming the hydrophobic coating. Alternatively, the hydrophobic coating may be applied by spraying, dipping, or other suitable method. The provision of the superhydrophobic coating can effectively prevent the gypsum slurry from adhering to the surface of the structural plate 21, and improve the smoothness of the flow of the gypsum slurry.
As an embodiment of the present invention, the bottom of the drainage portion 20 is also provided with a filtering portion 40 and a vibrating portion 60, the filtering portion 40 blocks particles with larger diameters at the top, the vibrating portion 60 can generate cavitation or bubble effect to promote micro-vibration of particles with smaller diameters, and the implosion phenomenon caused by cavitation effect can help micro-vibration of particles with smaller diameters and avoid accumulation, so as to be smoothly conveyed to the dewatering floor trench 50 through the pipeline.
In some embodiments, the structural plate 21 on the drainage portion 20 is provided with an anti-corrosion layer, which is disposed on the surface of the structural plate 21, so that the surrounding gypsum slurry is isolated from the metal plate, and the gypsum slurry is not in contact with the metal plate, to prevent corrosion of the structural plate 21. In some embodiments, the corrosion layer is composed of multiple layers of materials, the first layer being a primer applied to the surface of the structural panel 21 to enhance adhesion of the structural panel to the primary coating; the second layer is mainly paint, and common materials are petroleum asphalt, polyethylene adhesive tape, epoxy resin and the like, and can be other applicable materials.
Compared with the defects and shortcomings of the prior art, the gypsum slurry diversion system provided by the invention has the advantages that the structure is reasonable, the operation is convenient, more than 90% of gypsum slurry is directly diverted and discharged into a dewatering building trench, and the gypsum slurry is prevented from flowing into a cofferdam to form accumulation; furthermore, set up the slope at slope portion, set up hydrophobic coating at slope portion, avoid piling up on the slope of gypsum thick liquid, improve the smooth and easy nature that the gypsum thick liquid flows, have good spreading value.
The present invention is not limited to the above embodiments, and any person can obtain other products in various forms under the teaching of the present invention, however, any changes in shape or structure of the products are included in the scope of protection of the present invention, and all the products having the same or similar technical solutions as the present application are included in the present invention.
Claims (6)
1. The gypsum slurry diversion system is arranged below the vacuum belt dehydrator and is characterized by comprising a slope part and a diversion part, wherein the slope part and the diversion part are arranged along the length direction of the vacuum belt dehydrator, the diversion part is arranged at the tail end of the vacuum belt dehydrator, and the number of the slope parts is not less than one and is arranged close to the diversion part, so that gypsum slurry falling through the vacuum belt dehydrator is led to a cofferdam along the slope part and the diversion part; the lowest parts of the slope part and the drainage part are provided with a filtering part which is communicated with the dewatering building trench through a pipeline, and more than 90% of gypsum slurry is directly guided and discharged into the dewatering building trench; the slope part comprises a first slope, a second slope and a connecting part, and the filtering part is arranged at the connecting part; the included angle between the first slope and the horizontal plane and the included angle between the second slope and the horizontal plane are not smaller than 18 degrees; the connecting part is of a horizontal groove structure, and the filtering part is arranged at the top of the connecting part; the gypsum slurry diversion system also comprises a vibrating part which is arranged in the groove structure of the connecting part.
2. The gypsum slurry deflector system of claim 1, wherein the ramp is poured from concrete and has a surface coated with a hydrophobic coating.
3. The gypsum slurry guide system of claim 1, wherein the guide is formed by splicing obliquely arranged structural plates to guide the gypsum slurry falling from the tail end of the vacuum belt dehydrator.
4. The gypsum slurry diversion system of claim 3, wherein the surface of the structural board is coated with a superhydrophobic coating.
5. The gypsum slurry diversion system of claim 4, wherein the superhydrophobic coating comprises: a silicon-based coating material, a PTFE-based coating material, or a carbonaceous material.
6. The gypsum slurry diversion system of claim 1, wherein the vibration portion is an ultrasonic generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794244.4A CN110565766B (en) | 2019-08-27 | 2019-08-27 | Gypsum slurry flow guiding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794244.4A CN110565766B (en) | 2019-08-27 | 2019-08-27 | Gypsum slurry flow guiding system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110565766A CN110565766A (en) | 2019-12-13 |
| CN110565766B true CN110565766B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910794244.4A Active CN110565766B (en) | 2019-08-27 | 2019-08-27 | Gypsum slurry flow guiding system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811246A (en) * | 1957-01-04 | 1959-04-02 | Nat Gypsum Co | Improvements in a method of and apparatus for the calcination of gypsum |
| CN2817951Y (en) * | 2005-08-19 | 2006-09-20 | 上海旭和环境工程有限公司 | Feeder of vacuum energy-saving belt dewatering apparatus |
| CN102423614A (en) * | 2011-08-29 | 2012-04-25 | 新疆电力设计院 | Cone hopper-shaped diversion trench device for limestone-gypsum wet desulphurization technology |
| CN104069732A (en) * | 2014-07-11 | 2014-10-01 | 北京科技大学 | Integrated horizontal wet-process desulfurizing device |
| CN205145766U (en) * | 2015-07-24 | 2016-04-13 | 大唐科技产业集团有限公司江苏分公司 | Automatic rinse -system in vacuum belt hydroextractor bottom cofferdam |
| CN205235538U (en) * | 2015-11-02 | 2016-05-18 | 大唐环境产业集团股份有限公司 | Gypsum dehydration belt feeder |
| TW201643037A (en) * | 2015-06-12 | 2016-12-16 | 國立清華大學 | Diversion superhydrophobic structure |
-
2019
- 2019-08-27 CN CN201910794244.4A patent/CN110565766B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811246A (en) * | 1957-01-04 | 1959-04-02 | Nat Gypsum Co | Improvements in a method of and apparatus for the calcination of gypsum |
| CN2817951Y (en) * | 2005-08-19 | 2006-09-20 | 上海旭和环境工程有限公司 | Feeder of vacuum energy-saving belt dewatering apparatus |
| CN102423614A (en) * | 2011-08-29 | 2012-04-25 | 新疆电力设计院 | Cone hopper-shaped diversion trench device for limestone-gypsum wet desulphurization technology |
| CN104069732A (en) * | 2014-07-11 | 2014-10-01 | 北京科技大学 | Integrated horizontal wet-process desulfurizing device |
| TW201643037A (en) * | 2015-06-12 | 2016-12-16 | 國立清華大學 | Diversion superhydrophobic structure |
| CN205145766U (en) * | 2015-07-24 | 2016-04-13 | 大唐科技产业集团有限公司江苏分公司 | Automatic rinse -system in vacuum belt hydroextractor bottom cofferdam |
| CN205235538U (en) * | 2015-11-02 | 2016-05-18 | 大唐环境产业集团股份有限公司 | Gypsum dehydration belt feeder |
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| Publication number | Publication date |
|---|---|
| CN110565766A (en) | 2019-12-13 |
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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Applicant before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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