CN111807002B - Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder - Google Patents
Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder Download PDFInfo
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- CN111807002B CN111807002B CN202010836749.5A CN202010836749A CN111807002B CN 111807002 B CN111807002 B CN 111807002B CN 202010836749 A CN202010836749 A CN 202010836749A CN 111807002 B CN111807002 B CN 111807002B
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- coal
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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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
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- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to the technical field of coal feeders and discloses a accumulated coal cleaning device, a coal feeder and a coal dropping port anti-blocking method of the coal feeder. The accumulated coal cleaning device comprises an accumulated coal alarm detection mechanism and an accumulated coal cleaning mechanism; the coal accumulation alarm detection mechanism comprises a baffle, a connecting rod and a limit switch; one end of the connecting rod is connected with the baffle, and the other end of the connecting rod is connected with the limit switch, so that the baffle and the limit switch can be linked; when the displacement generated by the baffle reaches a set threshold value, triggering the limit switch to act; the accumulated coal cleaning mechanism comprises a connecting rod, an operating handle and a scraper matched with the shape of the side wall of the coal dropping port, one end of the connecting rod is connected with the scraper, and the other end of the connecting rod is connected with the operating handle. By applying the accumulated coal cleaning device, the coal dropping port can be cleaned and dredged without stopping the coal feeder or a corresponding whole system.
Description
Technical Field
The invention relates to the technical field of coal feeders, in particular to a accumulated coal cleaning device, a coal feeder and a coal outlet blockage prevention method of the coal feeder.
Background
The coal feeder is one of the main devices in the pulverizing system of the coal-fired power plant, which is a device for uniformly and continuously conveying raw coal to a coal mill according to a certain flow rate, the moisture of the raw coal is increased due to the moisture of the raw coal in the coal feeding machine from a coal bunker, the cohesiveness is improved, the coal is easily adhered to the pipe wall of a coal falling port 30 (as shown in figure 1) in the coal falling port area of the coal feeder after being weighed by a belt of the coal feeder, the adhered coal quantity is gradually increased, the coal falling port of the coal feeder is blocked, and the method for cleaning the coal adhered to the pipe wall of the coal falling port of the coal feeder can only be used for stopping the corresponding whole set of system, and the cleaning can be carried out after isolating a cold and hot air door of the system, so that the problem of load limitation of a generator set can be caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a accumulated coal cleaning device, which is used for effectively solving the problem of accumulated coal at a coal dropping port of a coal feeder and ensuring the normal operation of the coal feeder.
In order to achieve the above object, a first aspect of the present invention provides a deposited coal cleaning apparatus, including a deposited coal alarm detecting mechanism and a deposited coal cleaning mechanism;
the coal accumulation alarm detection mechanism comprises a baffle, a connecting rod and a limit switch; one end of the connecting rod is connected with the baffle, and the other end of the connecting rod is connected with the limit switch, so that the baffle and the limit switch can be linked; when the displacement generated by the baffle reaches a set threshold value, triggering the limit switch to act;
accumulated coal clearance mechanism include connecting rod, operating handle and with the scraper blade of the shape looks adaptation of coal breakage mouth lateral wall, the one end of connecting rod with the scraper blade is connected, the other end with operating handle connects, operating handle is provided with anti-skidding line.
After the accumulated coal cleaning device is applied to a coal drop port of a coal feeder, when accumulated coal occurs at the coal drop port, the accumulated coal alarm detection mechanism sends out an alarm signal, and according to the alarm signal, the accumulated coal at the coal drop port is dredged and cleaned by the accumulated coal cleaning mechanism so as to ensure the normal operation of the coal feeder. By applying the accumulated coal cleaning device, the coal dropping port can be cleaned and dredged without stopping the coal feeder or a corresponding whole system. The method can overcome the technical problems in the prior art and has remarkable progress.
Further, the upper edge of the scraper extends outwards to form a flange part.
Furthermore, the coal accumulation alarm detection mechanism further comprises a controller and an alarm connected with the controller, and the limit switch is connected with the controller.
Further, the alarm is a buzzer and/or a warning lamp.
Further, coal accumulation alarm detection mechanism still include the relay and with the alarm that the relay is connected, limit switch with the relay is connected.
Further, one side of the baffle is provided with a hinge.
Further, the connecting rod is hinged to the scraper.
The invention provides a coal feeder which comprises a coal dropping port and the accumulated coal cleaning device, wherein the coal alarm detection mechanism is arranged at the upper edge of the coal dropping port, and the accumulated coal cleaning device is arranged on the side wall of the coal dropping port.
Through the technical scheme, when the coal accumulation occurs at the coal dropping port, the coal accumulation alarm detection mechanism sends out an alarm signal, and according to the alarm signal, the accumulated coal at the coal dropping port is dredged and cleaned by the accumulated coal cleaning mechanism so as to ensure the normal operation of the coal feeder. According to the coal feeder disclosed by the invention, when the coal accumulation occurs at the coal drop port, the coal feeder or a corresponding whole system does not need to be stopped, and the coal drop port can be cleaned and dredged in the normal operation process of the coal feeder or the corresponding system. The method can overcome the technical problems in the prior art and has remarkable progress.
Further, the scraper blade with the inner wall laminating of coal breakage mouth, be provided with on the lateral wall of coal breakage mouth along the opening that the circumference of coal breakage mouth was arranged, the one end of connecting rod is passed the opening with the scraper blade is connected, and the other end is located outside the coal breakage mouth.
The invention provides a coal feeder coal drop port anti-blocking method, which comprises the coal feeder, and the coal feeder coal drop port anti-blocking method comprises the following steps: the accumulated coal alarming and detecting mechanism sends out an alarming signal, and the accumulated coal cleaning mechanism is utilized to dredge and clean the accumulated coal at the coal drop port according to the alarming signal.
Through the technical scheme, when the coal accumulation occurs at the coal dropping port, the coal accumulation alarm detection mechanism sends out an alarm signal, and according to the alarm signal, the accumulated coal at the coal dropping port is dredged and cleaned by the accumulated coal cleaning mechanism so as to ensure the normal operation of the coal feeder. By applying the anti-blocking method, when the coal outlet of the coal feeder is influenced by the accumulated coal at the coal outlet, the coal feeder or a corresponding whole system does not need to be stopped, and the coal outlet can be cleaned and dredged in the normal operation process of the coal feeder or the corresponding system. The method can overcome the technical problems in the prior art and has remarkable progress.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic diagram of a prior art coal feeder coal drop opening when coal accumulation occurs;
FIG. 2 is a schematic structural diagram of one embodiment of a coal accumulation alarm detection mechanism according to the present invention;
FIG. 3 is a schematic structural view of an embodiment of a coal deposit clearing mechanism;
FIG. 4 is a schematic structural view of another embodiment of the accumulated coal cleaning mechanism;
FIG. 5 is a schematic structural view of an embodiment of a coal drop;
FIG. 6 is a schematic structural view of yet another embodiment of a coal deposit clearing mechanism;
FIG. 7 is a schematic view showing an assembled state of the accumulated coal cleaning mechanism after being assembled to the coal dropping port;
FIG. 8 is a state diagram of the coal accumulation alarm detecting mechanism installed at the coal drop port;
FIG. 9 is a schematic view showing an assembled state of the accumulated coal cleaning mechanism after being assembled to the coal dropping port.
Description of the reference numerals
11, a baffle plate; 12 connecting rods; 13, a limit switch; 21 a connecting rod; 22 operating a handle; 23 a scraper blade; 24 flange parts; 14 an articulating member; 30 coal dropping ports; 25 a limiting block.
Detailed Description
The following describes the embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a accumulated coal cleaning device which comprises an accumulated coal alarm detection mechanism and an accumulated coal cleaning mechanism.
As shown in fig. 2, the coal accumulation alarm detection mechanism comprises a baffle plate, a connecting rod and a limit switch; one end of the connecting rod is connected with the baffle, and the other end of the connecting rod is connected with the limit switch, so that the baffle and the limit switch can be linked; and when the displacement generated by the baffle reaches a set threshold value, triggering the limit switch to act. Preferably, as shown in fig. 2, one side of the flap is provided with a hinge 14. By means of which hinge 14 can be hinged with a peripheral fixture. Hinge 14 may be a hinge. The connecting rod 21 and the scraper 23 may be fixedly connected or hinged.
As shown in fig. 3, the accumulated coal cleaning mechanism includes a connecting rod, an operating handle and a scraper 23 adapted to the shape of the side wall of the coal dropping port, one end of the connecting rod 21 is connected to the scraper 23, and the other end is connected to the operating handle 22.
The term "fit" as used herein means that, when the coal dropping opening side wall is circular arc-shaped, the scraper 23 is also circular arc-shaped. This ensures that the scraper 23 can abut against the side wall of the coal dropping opening.
The coal dropping port 30 is a tubular structure, and the cross section of the coal dropping port can be round or oval. In a preferred embodiment, the coal drop opening 30 is provided with a circular cross-section. In the embodiment where the coal drop opening 30 has a tubular shape and a circular cross section, the outer peripheral surface of the scraper has the same shape as the inner wall of the coal drop opening 30. Thus, the scraper 23 can be attached to the inner wall of the coal dropping port 30.
In addition, the thickness of the scraper 23 should not be too thick, otherwise, the opening of the coal dropping port 30 would be indirectly reduced, and the coal output efficiency would be affected. Preferably, the thickness of the blade 23 is between 1cm and 2 cm.
Preferably, the accumulated coal cleaning mechanisms are provided in two sets, and the two sets of accumulated coal cleaning mechanisms are arranged on opposite side walls of the coal dropping opening 30. This increases the scraping range of the scraper 23, so that it can clean every accumulated coal on the wall surface of the coal dropping port 30.
According to the technical scheme, after the accumulated coal cleaning device is applied to the coal dropping port 30 of the coal feeder, when accumulated coal occurs at the coal dropping port, the accumulated coal alarm detection mechanism sends out an alarm signal, and according to the alarm signal, the accumulated coal at the coal dropping port 30 is dredged and cleaned by the accumulated coal cleaning mechanism, so that the normal operation of the coal feeder is ensured. By applying the accumulated coal cleaning device, the coal dropping port 30 can be cleaned and dredged without stopping the coal feeder or a corresponding whole system. The method can overcome the technical problems in the prior art and has remarkable progress.
In order to clean the accumulated coal at the periphery of the upper edge of the coal dropping port 30, in another embodiment of the accumulated coal cleaning mechanism, as shown in fig. 4, a flange portion 24 is provided at the upper edge of the scraper 23, and the flange portion 24 is formed by extending the upper edge of the scraper 23 outwards. In use, the flange portion 24 is attached to the upper edge of the coal drop port 30.
In addition, coal accumulation alarm detection mechanism still includes the controller and with the alarm that the controller is connected, limit switch with the controller is connected. Wherein, the alarm is a buzzer and/or a warning light. Preferably, the controller is a PLC controller. Of course, the controller may be replaced by a relay.
The coal accumulation alarm detection mechanism further comprises a DCS operator station which is connected with the controller or the relay, and the controller can transmit signals to the DCS operator station when receiving alarm signals. Staff in the DCS operator station can receive the signal to remind the staff to clean the accumulated coal at the coal falling port 30, and the phenomenon that the coal accumulating port 30 is blocked to influence the normal operation of the coal feeder is avoided.
In a second aspect of the present invention, there is provided a coal feeder, as shown in fig. 5, comprising a coal drop port 30 and the accumulated coal cleaning device. As shown in fig. 8, the coal alarm detecting mechanism is provided at the upper edge of the coal drop port 30. As shown in fig. 9, the accumulated coal cleaning device is disposed on the side wall of the coal dropping port 30. The scraper 23 is attached to the inner wall of the coal dropping port 30, an opening 31 (as shown in fig. 5) arranged along the circumferential direction of the coal dropping port 30 is formed in the side wall of the coal dropping port 30, one end of the connecting rod 21 penetrates through the opening 31 to be connected with the scraper 23, the other end of the connecting rod is located outside the coal dropping port 30, and an operating handle 22 is arranged at the end of the connecting rod. In order to increase the friction between the operating handle 22 and the hand, so as to facilitate the grip of the operator, the operating handle 22 is provided with anti-slip threads.
In order to prevent the scraper 23 from separating from the inner wall of the coal dropping opening 30, in an alternative embodiment, a stopper 25 is provided. Preferably, the limiting block 25 is arranged in a ring structure, as shown in fig. 6 and 7, the limiting block 25 is sleeved on the connecting rod 21 and can slide back and forth along the axis of the connecting rod 21. The limiting block 25 is provided with a notch, and the size of the notch is gradually increased from the center of the limiting block 25 to the outside. The stop block 25 is made of an elastic material, such as rubber, and the diameter of its inner ring should be slightly smaller than the diameter of the connecting rod 21, so that it has a force to tighten the connecting rod 21 after it is installed on the connecting rod 21. During the use, will the breach orientation of stopper 25 the connecting rod 21 is pressed stopper 25 makes stopper 25 card is in on the connecting rod 21, promotes stopper 25, makes it with the laminating of the lateral wall of coal breakage mouth 30, in order to prevent doctor-bar 23 breaks away from the inner wall of coal breakage mouth 30.
The working principle of the accumulated coal cleaning device is briefly explained as follows:
as shown in fig. 8 and 9, when coal accumulation occurs at the coal dropping port 30, the coal accumulation 40 below the baffle plate 11 gradually increases and rises. Since the hinge 14 is provided at one side of the barrier 11, the hinge 14 is connected to a peripheral fixture. Thus, as the coal 40 builds up, it will lift the flap 11 relative to the other end of the hinge 14. One end of the connecting rod 12 is connected with the baffle 11, and the other end is connected with the limit switch 13. Therefore, when the flap 11 rises to a set threshold relative to the other end of the hinged member 14, the limit switch 13 is triggered, and the limit switch 13 triggers a controller or relay which controls the alarm to give an alarm signal. After receiving the alarm signal, the worker operates the operating handle 22 to drive the scraper 23 to move back and forth along the track of the opening 31 so as to scrape off the accumulated coal and dredge the coal dropping port 30.
In fig. 7, the direction indicated by the arrow is a coal dropping direction.
In fact, the controller or the relay can be omitted, and the limit switch 13 is directly connected with the alarm to realize the alarm.
The "threshold" in the above description may be set as needed.
Through the technical scheme, the coal feeder or the corresponding whole system does not need to be stopped, and the coal dropping port 30 can be cleaned and dredged in the normal operation process of the coal feeder or the corresponding system. The method can overcome the technical problems in the prior art and has remarkable progress.
The invention provides a coal feeder coal drop port anti-blocking method, which comprises the coal feeder, and the coal feeder coal drop port anti-blocking method comprises the following steps: the accumulated coal alarming and detecting mechanism sends out an alarming signal, and the accumulated coal cleaning mechanism is utilized to dredge and clean the accumulated coal at the coal drop port according to the alarming signal.
Through the technical scheme, when the coal accumulation occurs at the coal dropping port, the coal accumulation alarm detection mechanism sends out an alarm signal, and according to the alarm signal, the accumulated coal at the coal dropping port is dredged and cleaned by the accumulated coal cleaning mechanism so as to ensure the normal operation of the coal feeder. By applying the anti-blocking method, when the coal deposit occurs at the coal drop port and the coal output efficiency of the coal feeder is influenced, the coal feeder or a corresponding whole system does not need to be stopped, and the coal drop port can be cleaned and dredged in the normal operation process of the coal feeder or the corresponding system. The method can overcome the technical problems in the prior art and has remarkable progress.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. The accumulated coal cleaning device is characterized by comprising an accumulated coal alarm detection mechanism and an accumulated coal cleaning mechanism;
the coal accumulation alarm detection mechanism comprises a baffle (11), a connecting rod (12) and a limit switch (13); one end of the connecting rod (12) is connected with the baffle (11), and the other end of the connecting rod is connected with the limit switch (13), so that the baffle (11) and the limit switch (13) can be linked; when the displacement generated by the baffle (11) reaches a set threshold value, triggering the limit switch (13) to act;
the accumulated coal cleaning mechanism comprises a connecting rod (21), an operating handle (22) and a scraper (23) matched with the side wall of the coal dropping port in shape, one end of the connecting rod (21) is connected with the scraper (23), the other end of the connecting rod is connected with the operating handle (22), and the operating handle (22) is provided with anti-skid grains; the upper edge of the scraper (23) extends outwards to form a flange part (24);
the connecting rod (21) is sleeved with a limiting block (25) with an annular structure, a gap is formed in the limiting block (25), the size of the gap is gradually increased from the center of the limiting block (25) to the outside, the limiting block (25) is made of elastic materials, and the diameter of an inner ring of the limiting block is slightly smaller than that of the connecting rod (21);
the connecting rod (21) is hinged with the scraper (23).
2. The accumulated coal cleaning device according to claim 1, wherein the accumulated coal alarm detection mechanism further comprises a controller and an alarm connected with the controller, and the limit switch (13) is connected with the controller.
3. The accumulated coal cleaning device according to claim 2, wherein the alarm is a buzzer and/or a warning light.
4. The accumulated coal cleaning device according to claim 1, wherein the accumulated coal alarm detection mechanism further comprises a relay and an alarm connected with the relay, and the limit switch (13) is connected with the relay.
5. Accumulated coal cleaning device according to claim 1, characterized in that one side of the baffle (11) is provided with a hinge (14).
6. A coal feeder, characterized in that the coal feeder comprises a coal drop opening (30) and a coal accumulation cleaning device according to any one of claims 1 to 5, the coal alarm detection mechanism being arranged at an upper edge of the coal drop opening (30), the coal accumulation cleaning device being arranged on a side wall of the coal drop opening (30).
7. The coal feeder according to claim 6, characterized in that the scraper (23) is attached to the inner wall of the coal drop opening (30), an opening (31) arranged along the circumferential direction of the coal drop opening (30) is arranged on the side wall of the coal drop opening (30), one end of the connecting rod (21) passes through the opening (31) to be connected with the scraper (23), and the other end of the connecting rod is located outside the coal drop opening.
8. A coal feeder coal drop port blockage prevention method, characterized by comprising the coal feeder of any one of claims 6 to 7, the coal feeder coal drop port blockage prevention method comprising: the accumulated coal alarming and detecting mechanism sends out an alarming signal, and the accumulated coal cleaning mechanism is utilized to dredge and clean the accumulated coal at the coal drop port according to the alarming signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836749.5A CN111807002B (en) | 2020-08-19 | 2020-08-19 | Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836749.5A CN111807002B (en) | 2020-08-19 | 2020-08-19 | Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder |
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| Publication Number | Publication Date |
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| CN111807002A CN111807002A (en) | 2020-10-23 |
| CN111807002B true CN111807002B (en) | 2022-06-21 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003212321A (en) * | 2002-01-18 | 2003-07-30 | Ishikawajima Harima Heavy Ind Co Ltd | Shoot for belt conveyor |
| CN201555634U (en) * | 2009-09-22 | 2010-08-18 | 宝山钢铁股份有限公司 | Gas chamber oil-level gauge capable of cleaning |
| CN202321288U (en) * | 2011-11-04 | 2012-07-11 | 姚汉东 | Scraper-type anti-blocking material discharge bin |
| CN208585618U (en) * | 2018-08-06 | 2019-03-08 | 南京科技职业学院 | Chemical hopper anti-block apparatus |
| CN208933271U (en) * | 2018-10-23 | 2019-06-04 | 山东万山化工有限公司 | A kind of coal blending mechanism |
| CN210504026U (en) * | 2019-04-26 | 2020-05-12 | 华电电力科学研究院有限公司 | Coal fired power plant prevents stifled former coal bunker |
-
2020
- 2020-08-19 CN CN202010836749.5A patent/CN111807002B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003212321A (en) * | 2002-01-18 | 2003-07-30 | Ishikawajima Harima Heavy Ind Co Ltd | Shoot for belt conveyor |
| CN201555634U (en) * | 2009-09-22 | 2010-08-18 | 宝山钢铁股份有限公司 | Gas chamber oil-level gauge capable of cleaning |
| CN202321288U (en) * | 2011-11-04 | 2012-07-11 | 姚汉东 | Scraper-type anti-blocking material discharge bin |
| CN208585618U (en) * | 2018-08-06 | 2019-03-08 | 南京科技职业学院 | Chemical hopper anti-block apparatus |
| CN208933271U (en) * | 2018-10-23 | 2019-06-04 | 山东万山化工有限公司 | A kind of coal blending mechanism |
| CN210504026U (en) * | 2019-04-26 | 2020-05-12 | 华电电力科学研究院有限公司 | Coal fired power plant prevents stifled former coal bunker |
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| CN111807002A (en) | 2020-10-23 |
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