CN112193755A - Device and method for realizing multi-span belt sampling coal flow centralized aggregate conveying - Google Patents
Device and method for realizing multi-span belt sampling coal flow centralized aggregate conveying Download PDFInfo
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- CN112193755A CN112193755A CN202011003428.3A CN202011003428A CN112193755A CN 112193755 A CN112193755 A CN 112193755A CN 202011003428 A CN202011003428 A CN 202011003428A CN 112193755 A CN112193755 A CN 112193755A
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- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000005070 sampling Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 108
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 11
- 241000406668 Loxodonta cyclotis Species 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/04—Load carriers other than helical or spiral channels or conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Health & Medical Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying, which comprises a first conveying mechanism and a second conveying mechanism which are arranged at the input end of a system, wherein the output end of the first conveying mechanism is connected with the input end of the second conveying mechanism, the output end of the second conveying mechanism is provided with a vibration feeding mechanism for bearing coal flow, a metal fixed frame and a material transferring chute are arranged between the second conveying mechanism and the vibration feeding mechanism, and an aggregate mechanism is arranged at the position of the output port at the side part of the vibration feeding mechanism; the invention also discloses a transmission method corresponding to the device, and by adopting the technical scheme, the steps of coal mine sampling and conveying are integrated, the operation of transportation and processing is simplified, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the field of coal mine transportation, and particularly relates to a device and a method for realizing multi-span belt sampling coal flow centralized aggregate conveying.
Background
In the coal mine production process, the transportation loading is an indispensable link, many small and medium-sized coal mines arrange the ration loading station directly over the train track, and belt conveyor has been arranged to the loading station second floor to pass through belt conveyor with the commodity coal in the product storehouse to train quick loading on the first floor rail, because the position of artifical loading is higher apart from ground, the collection appearance volume is many, transport intensity of labour is big, there is great danger in the artifical transportation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a transmission device and a method for realizing multi-span belt sampling coal flow centralized aggregate conveying.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a realize that belt sampling coal flow of striding more concentrates device of gathering materials and carrying, including setting up first transmission device and the second transmission device at the system input in the system, the output of first transmission device links to each other with the input of second transmission device the output of second transmission device is provided with the vibration feed mechanism that is used for accepting the coal flow, and the metal fixed frame that is provided with between second transmission device and the vibration feed mechanism with change the material elephant trunk, change material elephant trunk fixed connection and extend perpendicularly in the bottom of second transmission device output and link to each other with the input of vibration feed mechanism, second transmission device passes through the metal fixed frame and changes the material elephant trunk and fix mutually to through changeing the material elephant trunk output coal mine in vibration feed mechanism, the mechanism of gathering materials has been placed in the lateral part delivery outlet position of vibration feed mechanism.
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein two ends of a material transferring chute are respectively provided with a material transferring funnel for receiving materials and a buffer funnel for transferring the materials to a vibration feeding mechanism, the top end of the material transferring chute is connected with the bottom of a metal fixed frame through the material transferring funnel, the bottom end of the material transferring chute is connected with the input end of the vibration feeding mechanism through the buffer funnel, a first hose and a second hose are respectively arranged at the positions where the material transferring funnel and the buffer funnel are connected with the material transferring chute, and the material transferring chute, the first hose and the second hose are all made of corrosion-resistant plastic materials.
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein a vibration feeding mechanism comprises a bin wall vibrator, a fixed frame, a vibration motor and a vibration blanking groove, wherein the bottom of a buffer storage hopper is connected with the vibration blanking groove through the fixed frame and is fixed in position, the bin wall vibrator is attached to the outer side wall of the buffer storage hopper, the vibration motor is arranged at the bottom of the vibration blanking groove and corresponds to the position right below the buffer storage hopper, and the output end of the vibration motor is connected with the bottom of the vibration blanking groove to output vibration force.
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying.
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein a first conveying mechanism consists of a first belt sampler and a first belt conveyer, a second conveying mechanism consists of a second belt sampler and a second belt conveyer, and material transferring belt conveyors are arranged at the bottoms of the first belt conveyer and the second belt conveyer.
The invention discloses a device for realizing multi-span belt sampling coal flow centralized aggregate conveying.
The invention discloses a method for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein a material transfer belt is continuous conveying equipment, vertically penetrates through the lower parts of a first belt conveyor and a second belt conveyor, and is in seamless connection with a discharge hole of a middle belt sampler, samples collected by the middle belt sampler are stably conveyed into a material transfer chute, a buffer hopper on a vibration feeding mechanism is connected with the material transfer chute extending to a first floor and used for receiving materials transferred by the second belt conveyor, and a vibration feeder is arranged right below the buffer hopper and uniformly and slowly conveys the materials in the buffer hopper into an aggregate mechanism.
The invention discloses a method for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein a plurality of conveying mechanisms with the same structure are arranged on the top surface of a material transferring belt corresponding to the transmission directions of a first conveying mechanism and a second conveying mechanism, and the spacing distance of the plurality of conveying mechanisms plus the length of a body corresponds to the length of the material transferring belt.
Adopt this technical scheme, can concentrate the transportation to changeing in the material swift current pipe with the colliery through adopting a plurality of belt conveyors to send the material to the vibration feeding mechanism according to fixed frequency through this pipeline, with through this mechanism output material in the mechanism that gathers materials, and can the loading, for improving loading efficiency, arrange many belt conveyor simultaneous operation in constrictive space, the centre only leaves one to the distance that two people passed through. In order to detect the quality of the commercial coal, a belt middle sampler is required to be arranged on a belt conveyor for sampling detection, and the collected sample is collected in a special aggregate system. The material collecting system is matched with the sampling machine and arranged on one side of the belt conveyer, a plurality of sets of sampling machines and material collecting systems are needed by a plurality of belt conveyers, and after sampling is finished, samples in the material collecting systems are manually batched and then are conveyed to the sample preparing chamber for sample preparation.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of the apparatus of the present invention;
fig. 2 is an enlarged view of the structure of the vibratory feeding mechanism of the present invention.
Labeled as: 1. transferring the material belt; 2. a first belt conveyor; 3. a first belt sampler; 4. a second belt conveyor; 5. a second belt sampling machine; 6. a metal fixing frame; 7. a material transferring hopper; 8. a first hose; 9. a triangular bracket; 10. transferring a material chute; 11. a second hose; 12. caching a funnel; 13. a bin wall vibrator; 14. a fixed frame; 15. a vibration motor; 16. vibrating a blanking groove; 17. and a material collecting mechanism.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail for the purpose of providing a more complete, accurate and thorough understanding of the inventive concepts and technical solutions of the present invention, including the shapes of the components, the structures, the mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes, the operation and use methods, and the like.
FIG. 1 is a schematic structural diagram of the apparatus of the present invention, and the apparatus shown in FIG. 1 is a conveying apparatus for realizing multi-span belt sampling coal flow centralized aggregate conveying, the system includes a first conveying mechanism and a second conveying mechanism arranged at the input end of the system, the output end of the first conveying mechanism is connected with the input end of the second conveying mechanism, the output end of the second conveying mechanism is provided with a vibration feeding mechanism for receiving the coal flow, a metal fixing frame 6 and a material transferring chute 10 are arranged between the second conveying mechanism and the vibration feeding mechanism, the material transferring chute 10 is fixedly connected to the bottom of the output end of the second conveying mechanism and vertically extends to be connected with the input end of the vibration feeding mechanism, the second conveying mechanism is fixed with the material transferring chute 10 through the metal fixing frame 6 and outputs the coal to the vibration feeding mechanism through the material transferring chute 10, an aggregate mechanism 17 is arranged at the side output port of the vibration feeding mechanism, the two ends of the material transferring elephant trunk 10 are respectively provided with a material transferring funnel 7 used for receiving materials and a buffer funnel 12 used for transferring the materials to the vibration feeding mechanism, the top end of the material transferring elephant trunk 10 is connected with the bottom of the metal fixed frame 6 through the material transferring funnel 7, the bottom end of the material transferring elephant trunk 10 is connected with the input end of the vibration feeding mechanism through the buffer funnel 12, the positions of the material transferring funnel 7 and the buffer funnel 12 connected with the material transferring elephant trunk 10 are respectively provided with a first hose 8 and a second hose 11, and the material transferring elephant trunk 10, the first hose 8 and the second hose 11 are made of corrosion-resistant plastic materials.
Fig. 2 is an enlarged view of the structure of the vibratory feeding mechanism of the present invention, and the vibratory feeding mechanism shown in fig. 2 includes a bin wall vibrator 13, a fixed frame 14, a vibrating motor 15 and a vibratory blanking slot 16, wherein the bottom of the buffer hopper is connected and fixed to the vibratory blanking slot 16 through the fixed frame 14, the bin wall vibrator 13 is attached to the outer side wall of the buffer hopper, the vibrating motor 15 is disposed at the bottom of the vibratory blanking slot 16 and corresponds to the position right below the buffer hopper, and the output end of the vibrating motor is connected to the bottom of the vibratory blanking slot to output a vibratory force.
The lateral part of the material transfer elephant trunk of present case is provided with the triangle-shaped support that is used for fixing its position, and first transmission mechanism comprises 2 by first belt proof machine 3 and first belt conveyer, second transmission mechanism comprises 5 and the second belt conveyer of second belt proof machine, and is provided with material transfer belt machine 1 in the bottom of first belt conveyer and second belt conveyer.
The material elephant trunk that changes of present case, first hose and second hose are made by PVC or stainless steel, change material funnel and buffer memory funnel and all exert the function of changeing material and buffer memory, can eliminate supplied materials initial velocity, reduce material whereabouts kinetic energy, prevent that the material from assaulting to destroy vibratory feeder and the mechanism of gathering materials. The material transferring funnel, the buffer funnel and the material transferring chute are made of non-corrosive, wear-resistant, non-adhesive and high-strength materials, such as stainless steel or PVC materials.
The scheme also discloses a transmission method for realizing multi-span belt sampling coal flow centralized aggregate conveying, wherein the material transfer belt is continuous conveying equipment, vertically penetrates through the lower parts of the first belt conveyer and the second belt conveyer, is in seamless connection with a discharge port of a belt middle sampler, stably conveys samples collected by the belt middle sampler into a material transfer chute, a buffer hopper on the vibration feeding mechanism is connected with the material transfer chute extending to a first floor and used for receiving materials transferred by the second belt conveyer, and the vibration feeder is arranged under the buffer hopper and uniformly and slowly conveys the materials in the buffer hopper into the material collecting mechanism.
The top surface of the material transferring belt is provided with a plurality of transmission mechanisms with the same structure corresponding to the transmission directions of the first transmission mechanism and the second transmission mechanism, and the spacing distance of the plurality of transmission mechanisms plus the length of the body corresponds to the length of the material transferring belt; wherein the mechanical part of the material transferring belt is formed by combining a belt frame, a transmission device, a transmission roller, a carrier roller, a belt, a cleaning plate, a discharging cover, a hopper, a base and the like; the transfer belt can simultaneously receive materials collected by a plurality of sets of belt middle sampling machines and combine the materials. The length of the material transferring belt is related to the number of belt conveyors, and the longer the number of the belt conveyors is, the longer the length of the material transferring belt is. The material transfer belt is of a fully-closed design and is provided with the sealed maintenance cover, the sealing performance is good, dust is not leaked and raised, the moisture loss of the coal sample is reduced to the maximum extent, a plurality of openable/closable observation windows are arranged on the side face and the lower portion of the sealed maintenance cover, and accumulated coal and maintenance and repair are conveniently and daily cleared.
Adopt this technical scheme, can concentrate the transportation to changeing in the material swift current pipe with the colliery through adopting a plurality of belt conveyors to send the material to the vibration feeding mechanism according to fixed frequency through this pipeline, with through this mechanism output material in the mechanism that gathers materials, and can the loading, for improving loading efficiency, arrange many belt conveyor simultaneous operation in constrictive space, the centre only leaves one to the distance that two people passed through. In order to detect the quality of the commercial coal, a belt middle sampler is required to be arranged on a belt conveyor for sampling detection, and the collected sample is collected in a special aggregate system. The material collecting system is matched with the sampling machine and arranged on one side of the belt conveyer, a plurality of sets of sampling machines and material collecting systems are needed by a plurality of belt conveyers, and after sampling is finished, samples in the material collecting systems are manually batched and then are conveyed to the sample preparing chamber for sample preparation.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (8)
1. The utility model provides a realize that belt sampling coal flow of striding more concentrates device of gathering materials and carrying, wherein including setting up first transmission device and the second transmission device at the device input, the output of first transmission device links to each other with the input of second transmission device, its characterized in that the output of second transmission device is provided with the vibration feed mechanism who is used for accepting the coal flow, the metal fixed frame that is provided with between second transmission device and the vibration feed mechanism with change the material elephant trunk, change material elephant trunk fixed connection and link to each other with the input of vibration feed mechanism in the bottom of second transmission device output and the perpendicular extension, second transmission device passes through the metal fixed frame and changes the material elephant trunk and fix mutually to through changeing material elephant trunk output coal mine in vibration feed mechanism, the mechanism of gathering materials has been placed in the lateral part delivery outlet position of vibration feed mechanism.
2. The apparatus according to claim 1, wherein both ends of the material transferring chute are respectively provided with a material transferring hopper for receiving materials and a buffer hopper for transferring the materials to the vibratory feeding mechanism, the top end of the material transferring chute is connected with the bottom of the metal fixed frame through the material transferring hopper, the bottom end of the material transferring chute is connected with the input end of the vibratory feeding mechanism through the buffer hopper, the positions where the material transferring hopper and the buffer hopper are connected with the material transferring chute are respectively provided with a first hose and a second hose, and the material transferring chute, the first hose and the second hose are all made of corrosion-resistant plastic materials.
3. The apparatus of claim 2, wherein the vibration feeding mechanism comprises a wall vibrator, a fixed frame, a vibration motor and a vibration discharging chute, wherein the bottom of the buffer hopper is connected and fixed to the vibration discharging chute through the fixed frame, the wall vibrator is attached to the outer side wall of the buffer hopper, the vibration motor is disposed at the bottom of the vibration discharging chute and corresponding to the position right below the buffer hopper, and the output end of the vibration motor is connected to the bottom of the vibration discharging chute to output the vibration force.
4. Device according to claim 2, characterized in that the sides of the material transfer chute are provided with triangular brackets for fixing their position.
5. The apparatus according to claim 1, wherein the first transfer mechanism is composed of a first belt sampler and a first belt conveyer, the second transfer mechanism is composed of a second belt sampler and a second belt conveyer, and a transfer belt conveyor is provided at the bottom of the first belt conveyer and the second belt conveyer.
6. The apparatus according to claim 2, wherein the transfer chute, the first hose and the second hose are made of PVC.
7. A method for realizing the concentrated aggregate conveying of the multi-span belt sampling coal flow, which comprises the conveying device for realizing the concentrated aggregate conveying of the multi-span belt sampling coal flow, as claimed in any one of claims 1 to 6, wherein the transferring belt is a continuous conveying device, vertically penetrates through the lower parts of the first belt conveyor and the second belt conveyor, and is in seamless joint with the discharge hole of the belt middle sampler, the samples collected by the belt middle sampler are smoothly conveyed into the transferring chute, a buffer hopper on the vibration feeding mechanism is connected with the transferring chute extending to a first floor, and is used for receiving the materials transferred by the second belt conveyor, and the vibration feeder is arranged right below the buffer hopper, and uniformly and slowly conveys the materials in the buffer hopper into the aggregate mechanism.
8. The method as claimed in claim 7, wherein a plurality of conveying mechanisms with the same structure are arranged on the top surface of the material transferring belt corresponding to the conveying directions of the first conveying mechanism and the second conveying mechanism, and the spacing distance of the plurality of conveying mechanisms plus the length of the body corresponds to the length of the material transferring belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003428.3A CN112193755B (en) | 2020-09-22 | 2020-09-22 | Device and method for realizing multi-span belt sampling coal flow centralized aggregate conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003428.3A CN112193755B (en) | 2020-09-22 | 2020-09-22 | Device and method for realizing multi-span belt sampling coal flow centralized aggregate conveying |
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| Publication Number | Publication Date |
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| CN112193755A true CN112193755A (en) | 2021-01-08 |
| CN112193755B CN112193755B (en) | 2024-08-20 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530810A (en) * | 1978-08-25 | 1980-03-04 | Fujitsu Ltd | Automatic bonding system for semiconductor device assembling |
| WO2006089199A1 (en) * | 2005-02-18 | 2006-08-24 | Midwest Pipe Coating, Inc. | Conveyor for bar or pipe |
| CN201449339U (en) * | 2009-06-05 | 2010-05-05 | 上海梅山钢铁股份有限公司 | System for collecting and preparing sample of multiple types of coal through splitting flow |
| CN104210800A (en) * | 2014-09-23 | 2014-12-17 | 中冶赛迪工程技术股份有限公司 | Long sealed material storage yard |
| CN108584340A (en) * | 2018-05-08 | 2018-09-28 | 湖南金三和粮油有限公司 | Grain is cleared up and the automatic integral system that puts in storage of classifying |
| CN214086333U (en) * | 2020-09-22 | 2021-08-31 | 淮北矿业股份有限公司 | Transmission device for realizing multi-span belt sampling coal flow centralized aggregate conveying |
-
2020
- 2020-09-22 CN CN202011003428.3A patent/CN112193755B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530810A (en) * | 1978-08-25 | 1980-03-04 | Fujitsu Ltd | Automatic bonding system for semiconductor device assembling |
| WO2006089199A1 (en) * | 2005-02-18 | 2006-08-24 | Midwest Pipe Coating, Inc. | Conveyor for bar or pipe |
| CN201449339U (en) * | 2009-06-05 | 2010-05-05 | 上海梅山钢铁股份有限公司 | System for collecting and preparing sample of multiple types of coal through splitting flow |
| CN104210800A (en) * | 2014-09-23 | 2014-12-17 | 中冶赛迪工程技术股份有限公司 | Long sealed material storage yard |
| CN108584340A (en) * | 2018-05-08 | 2018-09-28 | 湖南金三和粮油有限公司 | Grain is cleared up and the automatic integral system that puts in storage of classifying |
| CN214086333U (en) * | 2020-09-22 | 2021-08-31 | 淮北矿业股份有限公司 | Transmission device for realizing multi-span belt sampling coal flow centralized aggregate conveying |
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| CN112193755B (en) | 2024-08-20 |
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Inventor after: OuYang Qichun Inventor after: Zhang Wei Inventor after: Wang Yu Inventor after: Guo Qingjie Inventor after: Zhou Xiaohui Inventor after: Wang Jining Inventor after: Li Ya Inventor before: OuYang Qichun |
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