CN113369007A - Treatment system and treatment process for coal chemical gasification slag - Google Patents
Treatment system and treatment process for coal chemical gasification slag Download PDFInfo
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- CN113369007A CN113369007A CN202110773938.7A CN202110773938A CN113369007A CN 113369007 A CN113369007 A CN 113369007A CN 202110773938 A CN202110773938 A CN 202110773938A CN 113369007 A CN113369007 A CN 113369007A
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- 239000003245 coal Substances 0.000 title claims abstract description 70
- 239000002893 slag Substances 0.000 title claims abstract description 33
- 239000000126 substance Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000002309 gasification Methods 0.000 title claims description 4
- 238000012216 screening Methods 0.000 claims abstract description 108
- 239000002699 waste material Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 103
- 238000000926 separation method Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- -1 firstly Substances 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 7
- 239000011449 brick Substances 0.000 description 5
- 239000004566 building material Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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Abstract
The invention provides a treatment system and a treatment process for coal chemical gasified slag, and relates to the technical field of coal-to-liquid coal chemical industry. The system comprises a pretreatment system, a first sorting system, a first screening system, a second sorting system, a second screening system, a third sorting system and a concentration system, wherein the treatment system of the gasified slag in the coal chemical industry can effectively treat high-ash waste which does not meet the requirement of clean coal in the gasified slag, firstly, components which are lighter than the clean coal and have high ash are separated, and then, components which are higher than the clean coal and have high ash are separated, so that the clean coal reaches the requirement of a user, the particles are also subjected to classification treatment in the treatment process, the produced clean coal is classified, greater benefit is generated, meanwhile, the waste is also subjected to classification treatment, the waste can be converted into usable energy, the pollution can be reduced, and the number of the waste to be buried is reduced.
Description
Technical Field
The invention relates to the technical field of coal-to-liquid coal chemical industry, in particular to a treatment system and a treatment process for gasified residues in coal chemical industry.
Background
The gasified slag (fly ash) generated in the coal-to-liquid coal chemical industry contains mixed clean coal, a small part of waste with density lower than that of the clean coal and high ash content and a small part of waste with density higher than that of the clean coal and high ash content, the two wastes must be disposed of, otherwise, the gasified slag (fly ash) can only be entirely buried, and has no value.
The applicant finds that at least the following technical problems exist in the prior art: the high-ash high-density waste can be separated by using the existing equipment, for example, coarse coal slurry separation or spiral separation, but when the high-ash low-density waste is separated, the existing equipment is difficult to separate and cannot be treated, so that most of the gasified slag generated by coal-to-liquid or other coal-to-liquid projects is generally buried in a landfill during treatment, which not only pollutes the environment and increases the cost, but also causes waste of clean coal contained in the waste.
Disclosure of Invention
The invention aims to provide a treatment system and a treatment process for gasified slag in coal chemical industry, which aim to solve the technical problem that waste materials in the gasified slag cannot be effectively treated in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a processing system of coal industry gasification sediment, includes pretreatment systems, first sorting system, first screening system, second sorting system, second screening system, third sorting system and concentrated system, pretreatment systems with first sorting system is linked together, first sorting system respectively with first screening system with concentrated system is linked together, first screening system respectively with second sorting system with second screening system is linked together, second sorting system with concentrated system is linked together, second screening system respectively with third sorting system with concentrated system is linked together, third sorting system with concentrated system is linked together.
Preferably, the pretreatment systems include dissolving tank, breaker, high pressure water installation and ore pulp preprocessor, and the slay warp carry behind the breaker breakage extremely dissolve in the tank, water warp high pressure water installation carry extremely dissolve in the tank, dissolve the tank with ore pulp preprocessor is linked together, ore pulp preprocessor with first sorting system is linked together.
Preferably, the first sorting system comprises a first sorting machine and a first dewatering device, the first sorting machine is respectively communicated with the pretreatment system, the first screening system and the first dewatering device, and the first dewatering device is communicated with the concentration system.
Preferably, first screening system includes dehydration classifying screen and tank, dehydration classifying screen respectively with first sorting system the second sorting system with the tank is linked together, the tank with the second screening system is linked together.
Preferably, the second sorting system comprises a second sorting machine, a second dewatering device and a fourth dewatering device, the second sorting machine is respectively communicated with the first screening system, the second dewatering device and the fourth dewatering device, and the second dewatering device and the fourth dewatering device are both communicated with the concentration system.
Preferably, the second screening system comprises a cyclone group and a fifth dewatering device, the cyclone group is respectively communicated with the first screening system, the third screening system and the fifth dewatering device, and the fifth dewatering device is communicated with the concentration system.
Preferably, the third sorting system comprises a third sorting machine, a third dewatering device and a sixth dewatering device, the third sorting machine is respectively communicated with the second sorting system, the third dewatering device and the sixth dewatering device, and the third dewatering device and the sixth dewatering device are both communicated with the concentration system.
Preferably, the first separator comprises a tank body, an overflow pipeline, a distributor, a water supply structure, a drain pipe, a control valve and a controller, the overflow pipeline is arranged at the top of the tank body and communicated with the first dehydration device, the distributing device is positioned above the tank body and communicated with the pretreatment system, the bottom of the tank body is provided with an inclined plate which is obliquely arranged and is provided with a plurality of water permeable holes, the sloping plate divides the tank body into a top cavity and a bottom cavity along the vertical direction, the water supply structure is communicated with the bottom cavity, the low end of the inclined plate is connected with one end of the drain pipe, the other end of the drain pipe is communicated with the concentration system, the control valve is arranged inside the water discharge pipe and can control the blocking or the circulation of the water discharge pipe, and the controller is respectively connected with the water feeding structure and the control valve in a communication mode.
Preferably, the control valve comprises a valve body and a driving device, the valve body is in driving connection with the driving device, the driving device is in communication connection with the controller, the driving device can drive the valve body to move in the vertical direction inside the drain pipe after being started, and the drain pipe can be blocked when the valve body moves upwards to the limit position.
The treatment process of the coal chemical industry gasified slag is characterized by comprising the following specific steps of:
mixing slag and water through a pretreatment system to form ore pulp and conveying the ore pulp to a first separation system 2;
b, overflowing the waste with high ash and low density in the ore pulp by the first separation system, and conveying the bottom flow of the rest ore pulp to the first screening system;
c, the first screening system carries out classification screening of granularity, oversize products larger than 0.5 mm are conveyed into the second screening system, and undersize products smaller than 0.5 mm are conveyed into the second screening system;
d, overflowing clean coal in oversize products larger than 0.5 mm conveyed by the first screening system by the second screening system, and simultaneously underflow the rest waste materials;
step e, the second screening system carries out classification screening of granularity on the ore pulp conveyed by the first screening system, recovers clean coal in oversize products smaller than 0.15 mm, and conveys undersize products larger than 0.15 mm and smaller than 0.5 mm to a third screening system;
and f, recovering the clean coal in the undersize products which are more than 0.15 mm and less than 0.5 mm and are conveyed by the second screening system through overflow by the third screening system, and simultaneously underflow the rest waste materials.
The invention has the beneficial effects that: the system for treating the gasified slag in the coal chemical industry can effectively treat the high-ash waste which does not meet the requirement of clean coal in the gasified slag, firstly separate the components which are slightly lighter than the density of the clean coal and have high ash content, and then separate the components which are larger than the density of the clean coal and have high ash content, so that the clean coal meets the requirement of a user, and the particles are also subjected to classification treatment in the treatment process, the produced clean coal is classified, and more income is generated, meanwhile, the waste is also subjected to classification treatment, and the waste can be converted into usable energy, and if the waste is repeatedly used in the form of brick making and the like on building materials, the pollution can be reduced, and the quantity of the waste to be buried is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a block diagram of a first sorter of the invention;
FIG. 3 is a block diagram of a control valve according to the present invention;
FIG. 1, pretreatment system; 11. a water dissolving tank; 12. a crusher; 13. a high-pressure water device; 14. a pulp preprocessor;
2. a first sorting system; 21. a first sorter; 211. a tank body; 212. an overflow line; 213. a distributing device; 214. a water delivery structure; 2141. a frequency converter; 2142. a water pump; 2143. a flow meter; 2144. a water pipe; 215. a drain pipe; 216. a control valve; 2161. a valve body; 2162. a drive device; 217. a controller; 218. a sloping plate; 2191. a density sensor; 2192. a pressure sensor; 22. a first dewatering device;
3. a first screening system; 31. dewatering and grading sieve; 32. a water storage tank;
4. a second sorting system; 41. a second classifier; 42. a second dehydration device; 43. a fourth dehydration device;
5. a second screening system; 51. a cyclone group; 52. a fifth dehydration device;
6. a third sorting system; 61. a third sorter; 62. a third dewatering device; 63. a sixth dewatering device;
7. a concentration system; 71. a concentration tank; 72. and (4) a filter press.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like, as used herein, are used in the orientation or positional relationship indicated in FIG. 1, merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a processing system for gasified slag in a coal chemical industry, including a pretreatment system 1, a first sorting system 2, a first screening system 3, a second sorting system 4, a second screening system 5, a third sorting system 6, and a concentration system 7, where the pretreatment system 1 is communicated with the first sorting system 2, and slag and water can be dissolved together in the pretreatment system 1 to form ore pulp, and the pretreatment system 1 can also pre-treat the ore pulp and convey the ore pulp to the first sorting system 2;
the first separation system 2 is respectively communicated with the first screening system 3 and the concentration system 7, and the first separation system 2 can overflow the waste materials with high ash and low density in the ore pulp conveyed by the pretreatment system 1 and simultaneously convey the rest ore pulp to the subsequent first screening system 3 through underflow;
the first screening system 3 is respectively communicated with the second screening system 4 and the second screening system 5, the first screening system 3 can screen the granularity, oversize products larger than 0.5 mm are conveyed into the second screening system 4, and undersize products smaller than 0.5 mm are conveyed into the second screening system 5;
the second separation system 4 is communicated with the concentration system 7, and the second separation system 4 can overflow the clean coal in the oversize products larger than 0.5 mm conveyed by the first screening system 3 and simultaneously underflow the rest waste materials;
the second screening system 5 is respectively communicated with the third screening system 6 and the concentration system 7, the second screening system 5 can carry out classified screening on the ore pulp conveyed by the first screening system 3, carry out screening through granularity, recover clean coal in oversize products smaller than 0.15 mm, and convey undersize products larger than 0.15 mm and smaller than 0.5 mm to the third screening system 6;
the third separation system 6 is communicated with the concentration system 7, and the third separation system 6 can recover the clean coal in the undersize products which are more than 0.15 mm and less than 0.5 mm and are conveyed by the second screening system 5 after overflowing, and simultaneously underflow the rest waste materials;
the concentration system 7 can collect and recycle the wastewater generated by the related structures in the first sorting system 2, the first screening system 3, the second sorting system 4, the second screening system 5 and the third sorting system 6, and collect and treat the waste materials in the wastewater;
the system for treating the gasified slag in the coal chemical industry can effectively treat the high-ash waste which does not meet the requirement of clean coal in the gasified slag, firstly separate the components which are slightly lighter than the density of the clean coal and have high ash content, and then separate the components which are larger than the density of the clean coal and have high ash content, so that the clean coal meets the requirement of a user, and the particles are also subjected to classification treatment in the treatment process, the produced clean coal is classified, and more income is generated, meanwhile, the waste is also subjected to classification treatment, and the waste can be converted into usable energy, and if the waste is repeatedly used in the form of brick making and the like on building materials, the pollution can be reduced, and the quantity of the waste to be buried is reduced.
As an optional embodiment, the pretreatment system 1 includes a water dissolving tank 11, a crusher 12, a high-pressure water device 13 and an ore pulp preprocessor 14, the slag is crushed by the crusher 12 and then conveyed into the water dissolving tank 11, the water is conveyed into the water dissolving tank 11 by the high-pressure water device 13, the water dissolving tank 11 is communicated with the ore pulp preprocessor 14, the ore pulp preprocessor 14 is communicated with the first sorting system 2, the slag and the water are mixed in the water dissolving tank 11 to form ore pulp, the ore pulp is conveyed into the ore pulp preprocessor 14 through the ore pulp preprocessor 14, and the ore pulp pretreated by the slurry pump is conveyed into the subsequent first sorting system 2.
As an alternative embodiment, the first sorting system 2 comprises a first sorter 21 and a first dewatering device 22, the first sorter 21 is communicated with the pretreatment system 1, the first screening system 3 and the first dewatering device 22 respectively, the first sorter 21 can convey the waste material with high ash and low density in the ore pulp conveyed by the pretreatment system 1 to the first dewatering device 22 for dewatering treatment through overflow, and simultaneously convey the rest ore pulp to the subsequent first screening system 3 through underflow, wherein the rest ore pulp mainly comprises clean coal and waste material with high ash and high density, and the specific forms of overflow and underflow can be described with reference to the specific structure of the first sorter 21;
the first dewatering device 22 can be selected from dewatering machines such as a dewatering classifying screen, a curved screen, a high-frequency dewatering screen and a centrifugal dewatering machine, can perform dewatering function and has good dewatering effect, the first dewatering device 22 is simultaneously communicated with the concentration system 7, oversize products formed after dewatering by the first dewatering device 22 can be collected and then subjected to centralized treatment or landfill, or waste materials can be reused on building materials in the form of bricks and the like, the oversize products refer to the high-ash low-density waste materials, and screen drainage water formed after dewatering by the first dewatering device 22 can be discharged into the concentration system 7 to recycle water.
As an alternative embodiment, the first screening system 3 includes a dewatering classifying screen 31 and a water storage 32, the dewatering classifying screen 31 is respectively communicated with the first screening system 2, the second screening system 4 and the water storage 32, the dewatering classifying screen 31 can classify and screen the ore pulp conveyed from the first screening system 2, screen the ore pulp by granularity, convey oversize products larger than 0.5 mm to the second screening system 4, convey undersize products smaller than 0.5 mm to the water storage 32, the water storage 32 is communicated with the second screening system 5, and the water storage 32 conveys undersize products smaller than 0.5 mm stored inside to the second screening system 5 by a slurry pump when necessary.
As an alternative embodiment, the second sorting system 4 includes a second sorting machine 41, a second dewatering device 42 and a fourth dewatering device 43, the second sorting machine 41 is respectively communicated with the first screening system 3, the second dewatering device 42 and the fourth dewatering device 43, the second sorting machine 41 can convey the fine coal in the oversize product larger than 0.5 mm conveyed by the first screening system 3 to the fourth dewatering device 43 for dewatering treatment through overflow, and simultaneously convey the rest waste material to the subsequent second dewatering device 42 through underflow, because the second sorting machine 41 has the same structure and principle as the first sorting machine 21, the specific forms of overflow and underflow can be described with reference to the specific structure of the first sorting machine 21;
the second dewatering device 42 can select dewatering machines such as a dewatering classifying screen, an arc screen, a high-frequency dewatering screen and a centrifugal dewatering machine, can perform dewatering function and has good dewatering effect, the second dewatering device 42 is simultaneously communicated with the concentration system 7, oversize materials formed after the second dewatering device 42 dewaters are waste materials, can be collected and then subjected to centralized treatment or landfill, or the waste materials are reused on building materials in the form of brick making and the like, and screen water formed after the second dewatering device 42 dewaters can be discharged into the concentration system 7 to recycle water;
the fourth dewatering device 43 can select dewatering machines such as a dewatering classifying screen, an arc screen, a high-frequency dewatering screen and a centrifugal dehydrator, can play a dewatering role, and has a good dewatering effect, the fourth dewatering device 43 is communicated with the concentration system 7 at the same time, oversize products formed after the fourth dewatering device 43 is dewatered are clean coal, and can be reused after being dewatered by the centrifuge again, and screen water formed after the fourth dewatering device 43 is dewatered can be discharged into the concentration system 7 to recycle water.
As an alternative embodiment, the second screening system 5 comprises a cyclone group 51 and a fifth dewatering device 52, the cyclone group 51 is respectively communicated with the first screening system 3, the third screening system 6 and the fifth dewatering device 52, the cyclone group 51 can screen the ore pulp conveyed by the first screening system 3 in a grading way, screen the ore pulp by granularity, convey oversize products smaller than 0.15 mm into the fifth dewatering device 52, and convey undersize products larger than 0.15 mm and smaller than 0.5 mm into the third screening system 6;
the fifth dewatering device 52 can select dewatering machines such as a dewatering classifying screen, an arc screen, a high-frequency dewatering screen and a centrifugal dehydrator, can play a role in dewatering, and has a good dewatering effect, the fifth dewatering device 52 is communicated with the concentration system 7 at the same time, oversize products formed after the fifth dewatering device 52 is dewatered are clean coal, and can be reused after being dewatered by the centrifuge again, and screen water formed after the fifth dewatering device 52 is dewatered can be discharged into the concentration system 7 to recycle water.
As an alternative embodiment, the third sorting system 6 includes a third sorting machine 61, a third dewatering device 62 and a sixth dewatering device 63, the third sorting machine 61 is respectively communicated with the second screening system 5, the third dewatering device 62 and the sixth dewatering device 63, the third sorting machine 61 can convey the fine coal in the undersize greater than 0.15 mm and less than 0.5 mm conveyed by the second screening system 5 to the sixth dewatering device 63 for dewatering treatment through overflow, and simultaneously convey the rest waste materials to the subsequent third dewatering device 62 through underflow, because the third sorting machine 61 has the same structure and principle as the first sorting machine 21, the specific forms of overflow and underflow can be described with reference to the specific structure of the first sorting machine 21;
the third dewatering device 62 can be selected from dewatering machines such as a dewatering classifying screen, an arc screen, a high-frequency dewatering screen and a centrifugal dewatering machine, can perform dewatering function and has good dewatering effect, the third dewatering device 62 is simultaneously communicated with the concentration system 7, oversize materials formed after dewatering by the third dewatering device 62 are waste materials, can be collected and then subjected to centralized treatment or landfill, or the waste materials are reused on building materials in the form of brick making and the like, and screen water formed after dewatering by the third dewatering device 62 can be discharged into the concentration system 7 to recycle water;
the sixth dewatering device 63 can select dewatering machines such as a dewatering classifying screen, an arc screen, a high-frequency dewatering screen and a centrifugal dehydrator, can play a dewatering role, and has a good dewatering effect, the sixth dewatering device 63 is simultaneously communicated with the concentration system 7, oversize products formed after the sixth dewatering device 63 is dewatered are clean coal, and can be reused after being dewatered by a centrifuge again, and screen water formed after the sixth dewatering device 63 is dewatered can be discharged into the concentration system 7 to recycle water.
As an alternative embodiment, the first separator 21 includes a tank 211, an overflow pipeline 212, a distributor 213, a water feeding structure 214, a drain 215, a control valve 216, and a controller 217, wherein an annular overflow tank is disposed at the top of the tank 211, the overflow tank is communicated with the overflow pipeline 212, and the other end of the overflow pipeline 212 is communicated with the first dewatering device 22 and overflows through the overflow tank and the overflow pipeline 212;
the distributing device 213 is positioned above the tank 211 and is communicated with the pretreatment system 1, and the distributing device 213 is used for releasing the ore pulp treated by the pretreatment system 1 into the tank 211;
the bottom of the tank body 211 is provided with an inclined plate 218 which is obliquely arranged, the inclined plate 218 is provided with a plurality of water permeable holes, the low end of the inclined plate 218 is connected with one end of a water drainage pipe 215, the other end of the water drainage pipe 215 is communicated with the concentration system 7, underflow is performed through the water drainage pipe 215, a control valve 216 is arranged inside the water drainage pipe 215 and can control the blockage or circulation of the water drainage pipe 215 and also can control the underflow flow of the water drainage pipe 215, a controller 217 is in communication connection with the control valve 216, and the controller 217 can flexibly adjust the flow of the water drainage pipe 215 according to actual conditions;
the tank body 211 is divided into a top cavity and a bottom cavity by the inclined plate 218, the water feeding structure 214 is communicated with the bottom cavity, the water feeding structure 214 conveys clean water into the bottom cavity, the clean water is sprayed into the top cavity from the bottom cavity by the water pressure carried by the water feeding structure, and the top cavity is filled with ore pulp released from the distributor 213, so after the clean water and the ore pulp are mixed, because the gasified slag after the coal chemical industry is in a powder shape, the granularity of most particles is less than one millimeter, the particles are subjected to the action of top force and buoyancy in the water, two forces are controlled by the automatic control technology of the controller 217, clean coal and waste materials with different densities are layered, the waste material with the density slightly less than that of the clean coal overflows from the top through the overflow pipeline 212, the clean coal and the waste material with the density more than that of the clean coal underflow from the bottom through the drain pipe 215 to separate the clean coal and the waste material, sorting is realized, the water conveying structure 214 is in communication connection with the controller 217, and the controller 217 can flexibly adjust the water pressure of the water conveying structure 214 according to actual conditions;
it should be noted that in this embodiment, the first separator 21, the second separator 41, and the third separator 61 are of the same structure, and only the first separator 21 is selected as an example for description, but the materials to be separated by the first separator 21, the second separator 41, and the third separator 61 are different, that is, the overflow and the underflow of each separator are different, and in the case of the fine coal, the fine coal may be overflowed or underflow, and the first separator 21, the second separator 41, and the third separator 61 need to be separately controlled by the controller 217 according to actual conditions, so as to flexibly adjust the water pressure of the water feeding structure 214 in the different separators, to adjust the amount of water that the bottom cavity spouts to the top cavity, so that the particles are subjected to the top force and the buoyancy force in the water, thereby obtaining different densities, and finally realizing different overflows and underflows.
As an optional implementation manner, the water feeding structure 214 includes a frequency converter 2141, a water pump 2142, a flow meter 2143, and a water pipe 2144, the frequency converter 2141 is respectively in communication connection with the water pump 2142 and the controller 217, the water pump 2142 is communicated with the water pipe 2144, the water pipe 2144 is communicated with the bottom cavity, the flow meter 2143 is disposed on a pipeline of the water pipe 2144, the water pump 2142 delivers water from the water pipe 2144 to the bottom cavity, the flow meter 2143 can monitor water pressure in the water pipe 2144 at any time, the controller 217 can transmit a signal to the frequency converter 2141, and the frequency converter 2141 can adjust the water pumping pressure of the water pump 2142 to adjust the amount of water gushed from the bottom cavity to the top cavity.
As an optional embodiment, the first classifier 21 further includes a density sensor 2191 and a pressure sensor 2192, the density sensor 2191 is soaked in the liquid in the tank 211 and is in communication connection with the controller 217, the density of the liquid in the tank 211 can be monitored in real time, and a signal can be fed back to the controller 217, the pressure sensor 2192 is arranged in the water pipe 2144 and is in cylindrical connection with the controller 217, the water pressure intensity of the water pipe 2144 can be monitored in real time, and the signal can be fed back to the controller 217, and the controller 217 can adjust the water pressure according to the signal, so as to adjust the amount of water which is sprayed from the bottom cavity to the top cavity.
As an alternative embodiment, the control valve 216 includes a valve body 2161 and a driving device 2162, the lower end of the valve body 2161 is drivingly connected to the driving device 2162, the driving device 2162 is communicatively connected to the controller 217, the top structure of the water outlet pipe 215 is preferably configured to be small at the top and large at the bottom, so that the annular pipe wall is disposed obliquely with respect to the horizontal plane, the valve body 2161 is preferably a cone-shaped structure, the cross-sectional dimension of the lower end is the same as that of the upper end of the water outlet pipe 215, the driving device 2162 is preferably hydraulically driven by using a cylinder structure, the piston rod of the cylinder is connected to the valve body 2161, the piston rod can move the valve body 2161 vertically inside the water outlet pipe 215 after the cylinder is activated, the valve body 2161 can block the water outlet pipe 215 when moving upwards to a limit position, the water outlet pipe 215 can be circulated when the valve body 2161 moves downwards from the top limit position, meanwhile, the water discharge amount of the water discharge pipe 215 can be controlled by adjusting the position of the oil cylinder, and the oil cylinder structure per se is more conventional in the prior art, so that the oil cylinder structure is not described in detail or is not shown in the attached drawings too much.
As an alternative embodiment, the concentration system 7 includes a concentration tank 71 and a filter press 72, the concentration tank 71 is respectively communicated with the first sorting system 2, the first screening system 3, the second sorting system 4, the second screening system 5, the third sorting system 6 and the filter press 72, and the concentration tank 71 can collect and recycle the wastewater generated by the relevant structures in the first sorting system 2, the first screening system 3, the second sorting system 4, the second screening system 5 and the third sorting system 6 and collect and treat the waste in the wastewater through the filter press 72.
Example 2
The embodiment provides a treatment process of coal chemical industry gasified slag, which is characterized by comprising the following specific steps of:
step a, mixing slag and water through a pretreatment system 1 to form ore pulp and conveying the ore pulp to a first separation system 2;
b, the first separation system 2 can overflow the waste materials with high ash and low density in the ore pulp conveyed by the pretreatment system 1 and simultaneously convey the rest ore pulp to a subsequent first screening system 3 through underflow;
c, the first screening system 3 carries out classification screening of granularity, oversize products larger than 0.5 mm are conveyed into the second screening system 4, and undersize products smaller than 0.5 mm are conveyed into the second screening system 5;
d, overflowing clean coal in oversize products larger than 0.5 mm conveyed by the first screening system 3 by the second sorting system 4, and simultaneously underflow the rest waste materials;
step e, the second screening system 5 carries out classification screening of granularity on the ore pulp conveyed by the first screening system 3, recovers clean coal in oversize products smaller than 0.15 mm, and conveys undersize products larger than 0.15 mm and smaller than 0.5 mm to the third screening system 6;
and f, recovering clean coal in undersize products which are more than 0.15 mm and less than 0.5 mm and are conveyed by the second screening system 5 through overflow by the third sorting system 6, and simultaneously underflow the rest waste materials.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a processing system of coal industry gasification sediment which characterized in that, includes pretreatment systems (1), first sorting system (2), first screening system (3), second sorting system (4), second screening system (5), third sorting system (6) and concentrated system (7), wherein: the pretreatment system (1) is communicated with the first sorting system (2), the first sorting system (2) is respectively communicated with the first screening system (3) and the concentration system (7), the first screening system (3) is respectively communicated with the second sorting system (4) and the second screening system (5), the second sorting system (4) is communicated with the concentration system (7), the second screening system (5) is respectively communicated with the third sorting system (6) and the concentration system (7), and the third sorting system (6) is communicated with the concentration system (7).
2. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: pretreatment systems (1) include dissolving tank (11), breaker (12), high pressure water installation (13) and ore pulp preprocessor (14), and the slay warp carry extremely after breaker (12) breakage in dissolving tank (11), the water warp high pressure water installation (13) are carried extremely in dissolving tank (11), dissolving tank (11) with ore pulp preprocessor (14) are linked together, ore pulp preprocessor (14) with first sorting system (2) are linked together.
3. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: the first sorting system (2) comprises a first sorting machine (21) and a first dewatering device (22), the first sorting machine (21) is communicated with the pretreatment system (1), the first screening system (3) and the first dewatering device (22) respectively, and the first dewatering device (22) is communicated with the concentration system (7).
4. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: first screening system (3) are including dehydration classifying screen (31) and tank (32), dehydration classifying screen (31) respectively with first sorting system (2) second sorting system (4) with tank (32) are linked together, tank (32) with second screening system (5) are linked together.
5. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: the second sorting system (4) comprises a second sorting machine (41), a second dewatering device (42) and a fourth dewatering device (43), the second sorting machine (41) is communicated with the first screening system (3), the second dewatering device (42) and the fourth dewatering device (43) respectively, and the second dewatering device (42) and the fourth dewatering device (43) are communicated with the concentration system (7).
6. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: the second screening system (5) comprises a cyclone set (51) and a fifth dewatering device (52), the cyclone set (51) is communicated with the first screening system (3), the third sorting system (6) and the fifth dewatering device (52) respectively, and the fifth dewatering device (52) is communicated with the concentration system (7).
7. The system for treating gasified slag of coal chemical industry according to claim 1, wherein: the third sorting system (6) comprises a third sorting machine (61), a third dewatering device (62) and a sixth dewatering device (63), the third sorting machine (61) is communicated with the second sorting system (5), the third dewatering device (62) and the sixth dewatering device (63) respectively, and the third dewatering device (62) and the sixth dewatering device (63) are communicated with the concentration system (7).
8. The system for treating gasified slag of coal chemical industry according to claim 3, wherein: the first separator (21) comprises a tank body (211), an overflow pipeline (212), a distributor (213), a water delivery structure (214), a drain pipe (215), a control valve (216) and a controller (217), wherein the overflow pipeline (212) is arranged at the top of the tank body (211) and communicated with the first dewatering device (22), the distributor (213) is positioned above the tank body (211) and communicated with the pretreatment system (1), an inclined plate (218) is arranged at the bottom of the tank body (211), a plurality of water permeable holes are formed in the inclined plate (218), the tank body (211) is vertically divided into a top cavity and a bottom cavity by the inclined plate (218), the water delivery structure (214) is communicated with the bottom cavity, the low end of the inclined plate (218) is connected with one end of the drain pipe (215), and the other end of the drain pipe (215) is communicated with the concentration system (7), the control valve (216) is arranged inside the drain pipe (215) and can control the blocking or the circulation of the drain pipe (215), and the controller (217) is respectively connected with the water feeding structure (214) and the control valve (216) in a communication mode.
9. The system for treating gasified slag of coal chemical industry according to claim 8, wherein: the control valve (216) comprises a valve body (2161) and a driving device (2162), wherein the valve body (2161) is in driving connection with the driving device (2162), the driving device (2162) is in communication connection with the controller (217), the driving device (2162) can drive the valve body (2161) to move in the vertical direction in the drain pipe (215) after being started, and the valve body (2161) can block the drain pipe (215) when moving upwards to the limit position.
10. The treatment process of the coal chemical industry gasified slag is characterized by comprising the following specific steps of:
step a, mixing slag and water through a pretreatment system (1) to form ore pulp and conveying the ore pulp to a first separation system (2);
b, overflowing the waste with high ash and low density in the ore pulp by the first separation system (2), and conveying the bottom flow of the rest ore pulp to the first screening system (3);
c, the first screening system (3) carries out classification screening on the granularity, oversize products larger than 0.5 mm are conveyed into the second screening system (4), and undersize products smaller than 0.5 mm are conveyed into the second screening system (5);
d, overflowing clean coal in oversize products larger than 0.5 mm conveyed by the first screening system (3) by the second sorting system (4), and simultaneously underflow the rest waste materials;
step e, the ore pulp conveyed by the first screening system (3) is subjected to classification screening of granularity by the second screening system (5), clean coal in oversize products smaller than 0.15 mm is recovered, and undersize products larger than 0.15 mm and smaller than 0.5 mm are conveyed to the third screening system (6);
f, recovering the clean coal in the undersize products which are more than 0.15 mm and less than 0.5 mm and are conveyed by the second screening system (5) through overflow by the third screening system (6), and simultaneously underflow the rest waste materials.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201052473Y (en) * | 2007-06-29 | 2008-04-30 | 北京三矿通科技有限公司 | Coal slurry separator |
| CN206838295U (en) * | 2017-05-03 | 2018-01-05 | 中国神华能源股份有限公司 | Coal separation system |
| RU2665120C1 (en) * | 2017-11-30 | 2018-08-28 | Евгений Борисович Пьянковский | Method of complex dry processing of fly ash and technological line for processing of fly area |
| CN109092550A (en) * | 2018-08-31 | 2018-12-28 | 陕西陕煤黄陵矿业有限公司 | A kind of coarse-fine coal centrifugate recovery system and its recovery method |
| CN111215236A (en) * | 2020-03-10 | 2020-06-02 | 威海市海王科技有限公司 | Coal gasification ash gravity separation system and gravity separation process |
| CN215087949U (en) * | 2021-07-08 | 2021-12-10 | 苟严 | Processing system of coal industry gasification sediment |
-
2021
- 2021-07-08 CN CN202110773938.7A patent/CN113369007A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201052473Y (en) * | 2007-06-29 | 2008-04-30 | 北京三矿通科技有限公司 | Coal slurry separator |
| CN206838295U (en) * | 2017-05-03 | 2018-01-05 | 中国神华能源股份有限公司 | Coal separation system |
| RU2665120C1 (en) * | 2017-11-30 | 2018-08-28 | Евгений Борисович Пьянковский | Method of complex dry processing of fly ash and technological line for processing of fly area |
| CN109092550A (en) * | 2018-08-31 | 2018-12-28 | 陕西陕煤黄陵矿业有限公司 | A kind of coarse-fine coal centrifugate recovery system and its recovery method |
| CN111215236A (en) * | 2020-03-10 | 2020-06-02 | 威海市海王科技有限公司 | Coal gasification ash gravity separation system and gravity separation process |
| CN215087949U (en) * | 2021-07-08 | 2021-12-10 | 苟严 | Processing system of coal industry gasification sediment |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国物资部机械设备成套管理局等: "《全国阀门实用技术手册》", 30 June 1992, 浙江科学技术出版社, pages: 518 - 519 * |
| 洪尚清: "《中国煤炭运销工作指南》", 30 November 1995, 企业管理出版社, pages: 462 - 466 * |
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