CN113695105A - System for reducing gas release in coal transportation process - Google Patents
System for reducing gas release in coal transportation process Download PDFInfo
- Publication number
- CN113695105A CN113695105A CN202110978181.5A CN202110978181A CN113695105A CN 113695105 A CN113695105 A CN 113695105A CN 202110978181 A CN202110978181 A CN 202110978181A CN 113695105 A CN113695105 A CN 113695105A
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- CN
- China
- Prior art keywords
- coal
- stirring
- tank
- washing
- inhibitor
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
- B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
Abstract
The invention relates to a system for reducing gas release in the coal transportation process, which belongs to the field of coal mining and comprises a spraying system, a stirring system and a coal washing system which are sequentially connected; the spraying system is used for spraying a gas desorption inhibitor to coal; the stirring system is used for uniformly stirring the gas analysis inhibitor and coal and fully wrapping coal particles; the coal washing system is used for washing and dressing coal. According to the method, the gas desorption inhibitor is sprayed into the coal before coal washing, so that the gas desorption of the coal in the transportation process is inhibited, the emission of greenhouse gases is reduced, and the efficient and green utilization of coal resources is realized.
Description
Technical Field
The invention belongs to the field of coal mining, and relates to a system for reducing gas release in a coal transportation process.
Background
Climate change due to greenhouse gas emissions is a common challenge for all humans. Coal mine gas is a strong greenhouse effect gas, and the greenhouse effect of methane in the coal mine gas is 21 times that of carbon dioxide. The occurrence of gas in coal seams is mainly in two states: the gas in the permeation space is mainly in a free gas state, which is called free gas; the other is called adsorption gas, which is mainly adsorbed on the microporous surface of coal and inside the particles of coal, occupying vacancies in the structure of coal molecules or spaces between coal molecules. The actual measurement shows that the free gas accounts for 5-30% and the coal bed gas adsorption accounts for 70-95% under the mining depth (within 1000-2000 m).
After the coal is stripped from the coal bed, the adsorbed gas can be desorbed from the coal particles, namely, the gas is desorbed and released. Most of gas is desorbed in the early stage of stripping coal particles, but the gas is continuously desorbed and released before the coal is combusted and utilized, when the coal particles are exposed to the air, a considerable part of adsorbed gas is desorbed and then is discharged into the air, and the collection and centralized destruction of the part of gas are basically in a blank state at present. Therefore, the search for a simple and efficient method for reducing desorption emission in the coal transportation process is not slow enough.
Under the background, the method inhibits the desorption and discharge of gas in the transportation process of coal particles, realizes high-efficiency and green utilization of resources, and has important significance for reducing the discharge of greenhouse gases and realizing carbon peak reaching.
Disclosure of Invention
In view of the above, the present invention provides a system for reducing gas release during coal transportation, which is a method for spraying a gas desorption inhibitor onto coal before coal washing to inhibit gas desorption during coal transportation, reduce greenhouse gas emission, and achieve efficient and green utilization of coal resources.
In order to achieve the purpose, the invention provides the following technical scheme:
a system for reducing gas release in the coal transportation process comprises a spraying system, a stirring system and a coal washing system which are sequentially connected;
the spraying system is used for spraying a gas desorption inhibitor to coal;
the stirring system is used for uniformly stirring the gas analysis inhibitor and coal and fully wrapping coal particles;
the coal washing system is used for washing and dressing coal.
Further, the spraying system comprises a control cabinet, a spray head, a reagent storage tank and a pressure pump, wherein the reagent storage tank is sequentially connected with the pressure pump and the spray head, the reagent storage tank is internally provided with a gas analysis inhibitor, and the control cabinet controls the pressure pump to pressurize and spray the gas analysis inhibitor from the spray head.
Further, mixing system includes agitator tank, stirring fan blade and agitator motor, the agitator tank sets up in the shower nozzle below, stirring fan blade sets up at the inside lower extreme of agitator tank, agitator motor is connected with stirring fan blade, and the control cabinet control agitator motor drives stirring fan blade rotation.
Further, the coal washing system is a flotation coal washing system, and comprises a coal washing tank, a clean coal discharge port, a tailing discharge port are formed in the coal washing tank, a feed inlet connected with an agitator tank is formed in the coal washing tank, the coal washing system further comprises a circulating pump, a bubble generator, a water tank and a water pump, one end of the circulating pump is communicated with the coal washing tank, the other end of the circulating pump is connected with the bubble generator, one end of the bubble generator is communicated with the coal washing tank, an air inlet is formed in the bubble generator, the water tank is connected with the water pump, the water pump is communicated with the upper end of the coal washing tank, and the control cabinet is connected with the circulating pump, the water pump and the bubble generator in a control mode.
Further, the shower nozzle is from rotary circular tube formula shower nozzle, including shower nozzle pole, feed liquor pole, arranged the nozzle on the shower nozzle pole, become certain contained angle between nozzle and the shower nozzle pole axis, be equipped with antifriction bearing on the feed liquor pole.
Further, the control cabinet intelligently adjusts the spraying amount of the gas desorption inhibitor according to the coal amount entering the spraying system, and the water supply amount and the bubble supply amount of the coal washing system.
The invention has the beneficial effects that: according to the method, the gas desorption inhibitor is sprayed into the coal before coal washing, so that the gas desorption of the coal in the transportation process is inhibited, the emission of greenhouse gases is reduced, and the efficient and green utilization of coal resources is realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a general block diagram of a system for reducing gas emissions during coal transport in accordance with the present invention;
FIG. 2 is a schematic structural view of a spray head of the spray system of the present invention;
fig. 3 is a schematic structural view of the spray head A of the spray system of the invention.
Reference numerals: control cabinet 1, force (forcing) pump 2, reagent holding vessel 3, stirring fan 4, agitator tank 5, shower nozzle 6, water pump 7, water tank 8, bubble generator 9, circulating pump 10, feed liquor pipe 61, antifriction bearing 62, shower nozzle pole 63, nozzle 64.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, a system for reducing gas release during coal transportation comprises a spraying system, a stirring system and a coal washing system, wherein the spraying system mainly comprises a control cabinet 1, a spray head 6, a reagent storage tank 3 and a pressure pump 2 and is used for spraying a gas desorption inhibitor into coal before coal washing; the stirring system comprises a stirring tank 5 and stirring blades 4 arranged in the stirring tank 5, and is used for fully coating coal particles with the gas desorption inhibitor; the gas desorption inhibitor is an organic solvent, has good fluidity, can fully wrap coal particles, can permeate into coal particle micro cracks, can fully fill the coal particle cracks, and can prevent adsorbed gas from being desorbed and discharged.
The spraying system is arranged at the front end of the coal washing system, so that cleaned coal particles and tailings after coal washing can be wrapped by the desorption inhibitor, and not only can the desorption emission of gas in the cleaned coal transportation process be reduced, but also the emission of gas and other greenhouse gases in the tailings can be reduced.
Coal washing system is flotation coal washing system, including the coal washing jar, clean coal discharge gate 12, tailing discharge gate 13 have been seted up on the coal washing jar to and the feed inlet 11 of being connected with the agitator tank, still include circulating pump 10, bubble generator 9, water tank 8 and water pump 7, in the circulating pump 10 one end intercommunication coal washing jar, the other end is connected with bubble generator 9, bubble generator one end and coal washing jar intercommunication, be equipped with air admission mouth 14 on the bubble generator 9, water tank 8 is connected with water pump 7, water pump 7 and coal washing jar upper end intercommunication, switch board 1 and circulating pump 10, water pump 7 and bubble generator 9 control connection.
The control cabinet integrally controls a pressurizing pump 2 of the spraying system, a circulating pump 10, a water pump 8 and a bubble generator 9 of the coal washing system, and intelligently adjusts the spraying amount of the gas desorption inhibitor, the water supply amount of the coal washing system and the bubble supply amount according to the coal amount entering the spraying system.
The spray head 6 is a self-rotating circular tube type spray head, the spray nozzle 64 is arranged on the spray head 6, a certain included angle is formed between the spray nozzle 64 and the axis of the spray head rod 63, so that when the pressurized gas desorption inhibitor is sprayed out from the spray nozzle, a moment is given to the spray head rod 63, and a certain rotating speed of the spray head rod 63 is ensured.
The liquid inlet rod 61 of the spray head 6 is provided with a rolling bearing 62, so that the spray head rod 63 can rotate relative to the liquid inlet rod 62.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (6)
1. A system for reducing gas release during coal transportation, comprising: comprises a spraying system, a stirring system and a coal washing system which are connected in sequence;
the spraying system is used for spraying a gas desorption inhibitor to coal;
the stirring system is used for uniformly stirring the gas analysis inhibitor and coal and fully wrapping coal particles;
the coal washing system is used for washing and dressing coal.
2. The system for reducing gas release during coal transport of claim 1, wherein: the spray system comprises a control cabinet, a spray head, a reagent storage tank and a pressure pump, wherein the reagent storage tank is sequentially connected with the pressure pump and the spray head, the reagent storage tank is internally provided with a gas analysis inhibitor, and the control cabinet controls the pressure pump to pressurize and sprays the gas analysis inhibitor from the spray head.
3. The system for reducing gas release during coal transport of claim 2, wherein: the stirring system comprises a stirring tank, stirring fan blades and a stirring motor, wherein the stirring tank is arranged below the spray head, the stirring fan blades are arranged at the lower end inside the stirring tank, the stirring motor is connected with the stirring fan blades, and the stirring motor is controlled by the control cabinet to drive the stirring fan blades to rotate.
4. The system for reducing gas release during coal transport of claim 3, wherein: the coal washing system is a flotation coal washing system and comprises a coal washing tank, a clean coal discharge port, a tailing discharge port and a feed inlet connected with an agitator tank are formed in the coal washing tank, the coal washing system further comprises a circulating pump, a bubble generator, a water tank and a water pump, one end of the circulating pump is communicated with the coal washing tank, the other end of the circulating pump is connected with the bubble generator, one end of the bubble generator is communicated with the coal washing tank, an air inlet is formed in the bubble generator, the water tank is connected with the water pump, the water pump is communicated with the upper end of the coal washing tank, and the control cabinet is in control connection with the circulating pump, the water pump and the bubble generator.
5. The system for reducing gas release during coal transport of claim 4, wherein: the shower nozzle is from rotary circular tube formula shower nozzle, including shower nozzle pole, feed liquor pole, arranged the nozzle on the shower nozzle pole, become certain contained angle between nozzle and the shower nozzle pole axis, be equipped with antifriction bearing on the feed liquor pole.
6. The system for reducing gas release during coal transport of claim 5, wherein: the control cabinet intelligently adjusts the spraying amount of the gas desorption inhibitor according to the coal amount entering the spraying system, and the water supply amount and the bubble supply amount of the coal washing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978181.5A CN113695105A (en) | 2021-08-23 | 2021-08-23 | System for reducing gas release in coal transportation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978181.5A CN113695105A (en) | 2021-08-23 | 2021-08-23 | System for reducing gas release in coal transportation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113695105A true CN113695105A (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110978181.5A Pending CN113695105A (en) | 2021-08-23 | 2021-08-23 | System for reducing gas release in coal transportation process |
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| Country | Link |
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| CN (1) | CN113695105A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519501D0 (en) * | 1984-09-12 | 1985-09-11 | American Cyanamid Co | Flotation of coal |
| CN101306398A (en) * | 2007-05-15 | 2008-11-19 | 上海大屯能源股份有限公司 | Microbubble swirl separation method and divice |
| CN102716814A (en) * | 2012-06-26 | 2012-10-10 | 中国矿业大学 | Novel flotation column serial connection test system for improving flotation granularity upper limit |
| CN104841571A (en) * | 2015-05-29 | 2015-08-19 | 武汉工程大学 | Novel flotation column and flotation method thereof |
| CN106353458A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Device and method for simulating sealing fluid for inhibiting gas desorption of coal samples |
| CN209735815U (en) * | 2019-02-21 | 2019-12-06 | 江苏精科嘉益工业技术有限公司 | Coal washing flotation agent spraying device |
| CN212535748U (en) * | 2020-08-10 | 2021-02-12 | 西安科技大学 | Colliery is gas and coal dust prevention and cure device in coordination in pit |
| CN212535749U (en) * | 2020-08-10 | 2021-02-12 | 西安科技大学 | Coal mine underground gas wall plugging and magnetized active agent cooperative corner gas control system |
-
2021
- 2021-08-23 CN CN202110978181.5A patent/CN113695105A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519501D0 (en) * | 1984-09-12 | 1985-09-11 | American Cyanamid Co | Flotation of coal |
| CN101306398A (en) * | 2007-05-15 | 2008-11-19 | 上海大屯能源股份有限公司 | Microbubble swirl separation method and divice |
| CN102716814A (en) * | 2012-06-26 | 2012-10-10 | 中国矿业大学 | Novel flotation column serial connection test system for improving flotation granularity upper limit |
| CN104841571A (en) * | 2015-05-29 | 2015-08-19 | 武汉工程大学 | Novel flotation column and flotation method thereof |
| CN106353458A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Device and method for simulating sealing fluid for inhibiting gas desorption of coal samples |
| CN209735815U (en) * | 2019-02-21 | 2019-12-06 | 江苏精科嘉益工业技术有限公司 | Coal washing flotation agent spraying device |
| CN212535748U (en) * | 2020-08-10 | 2021-02-12 | 西安科技大学 | Colliery is gas and coal dust prevention and cure device in coordination in pit |
| CN212535749U (en) * | 2020-08-10 | 2021-02-12 | 西安科技大学 | Coal mine underground gas wall plugging and magnetized active agent cooperative corner gas control system |
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Application publication date: 20211126 |
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| RJ01 | Rejection of invention patent application after publication |