Conveyor coal scraping device and anti-falling scheme

By designing a coal scraping device with separation plate and shovel end and an anti-falling solution using radar and infrared rays, the problems of coal scraping device blockage and cleaning personnel falling are solved, and efficient and safe coal scraping and anti-falling effects are achieved.

CN119503396APending Publication Date: 2025-02-25HUANENG POWER INT ENERGY DEV CO LTD
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Patent Information

Application Number
CN202411637985.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-02-25

AI Technical Summary

Technical Problem

Existing coal scraping devices are prone to blockage when facing large pieces of coal, resulting in friction and deviation between the scraper and the transmission belt, posing serious safety hazards. At the same time, material transportation is layered, and cleaning personnel clean up coal on high-rise floors with risk of falling.

Method used

A conveyor coal scraping device is designed, including a transmission assembly and a coal scraping plate. The coal scraping plate is composed of a first separation plate and a second separation plate. The tip of the first separation plate is arranged intertwined with the accumulation end, and the shovel end and the split end of the second separation plate are designed for secondary coal scraping and dividing large pieces of coal. At the same time, a fall prevention solution is provided, using the dual linkage between the radar launch end and the infrared detector to implement alarm and locking equipment through signal transmission to prevent cleaning personnel from entering dangerous areas.

Benefits of technology

It effectively solves the problems of blockage of large coal and scraper friction, improves the efficiency and safety of scraping coal, reduces the risk of offset of the transmission belt, and effectively avoids the fall risk of cleaning personnel through anti-falling solutions.

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Abstract

The conveyor coal scraping device comprises a transmission assembly, the transmission assembly comprises a supporting frame, an output motor arranged on one side of the supporting frame, an output roller connected with the output end of the output motor, a transmission belt matched with the output roller in a transmission mode, a steering component, a coal scraping plate and a driving assembly, the device comprises a first separation plate and a second separation plate arranged on the output side of the first separation plate. The device has the beneficial effects that large coal can make contact with large pressure in the first time in the process of making contact with the scraper, so that the large coal is segmented, and the situation that the contact end of the scraper is blocked is reduced.
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Description

Technical Field

[0001] The invention relates to the technical field of belt conveying, in particular to a conveyor coal scraping device and an anti-falling solution. Background Art

[0002] During the belt conveying process, an output motor is usually installed on the first floor to drive the operation of the entire transmission chain. During the belt transmission process, the output roller, several sets of tension rollers and redirection rollers are required to cooperate to control the conveying route. However, if the belt needs to have sufficient tension during this process, the winding path of the belt needs to be controlled. At this time, the belt will be arranged in an S shape around the roller, which will cause some adsorbed wet coal to exist on the side of the belt transporting coal. Finally, the side of the belt transporting coal will contact the roller, which will cause the roller to contact the adsorbed coal, blocking the direct contact between the belt and the roller. This process is extremely dangerous, because the uneven adsorbed coal may cause the belt to deflect, increasing the stability of the belt transportation.

[0003] The commonly used device for scraping coal on the surface of the scraper belt is to place a scraper at the end point of the belt conveying the material to scrape the coal. The design of the scraper plate often uses the tip of the iron sheet to contact the transmission belt to scrape the coal. Such a scraping effect will easily cause blockage and be unable to scrape away when encountering large pieces of coal. When large pieces of coal are blocked at the scraper, it is easy to cause friction and deviation of the transmission belt, which greatly poses a serious safety hazard to the working process.

[0004] Because materials are transported in layers, there are usually holes on the high floors. During work, workers may clean up the coal that has spilled next to the holes. This is extremely dangerous and may result in a fall. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the fact that the above-mentioned existing coal scraping effect is prone to blockage and cannot be scraped away when encountering large pieces of coal, when large pieces of coal are blocked at the scraper, it is easy to cause friction and deviation of the transmission belt, which greatly poses a serious safety hazard to the working process. In addition, material transportation adopts a layered method, so holes are usually provided on the floor of the high-rise building. During the work process, some staff may clean up the coal spilled next to the holes, which is extremely dangerous and may cause falling. Therefore, the present invention is proposed.

[0007] The present invention aims to provide a conveyor coal scraping device, which aims to solve the problem that coal cannot be directly scraped off when contacting a scraper and forms a blockage, posing a serious safety hazard.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a conveyor coal scraper device, which includes a transmission assembly, which includes a support frame, an output motor arranged on one side of the support frame, an output roller connected to the output end of the output motor, a transmission belt cooperated with the output roller for transmission, and a steering component, a coal scraper plate, which is in contact with the transmission belt, and includes a first separation plate and a second separation plate arranged on the output side of the first separation plate.

[0009] As a preferred solution of the conveyor coal scraper device of the present invention, the support frame includes an extension plate and a rotating shaft, and the output roller rotates coaxially with the rotating shaft.

[0010] As a preferred solution of the conveyor coal scraping device of the present invention, the steering component includes several groups of driven rollers, several groups of symmetrically arranged fixed frames and two groups of steering parts, a rotating shaft is connected between the two symmetrically arranged groups of fixed frames, and the driven roller is fixed to the rotating shaft and rotates coaxially.

[0011] As a preferred solution of the conveyor coal scraping device of the present invention, several groups of the driven rollers are connected to the transmission belt, and the transmission belt rotates around the driven rollers by switching between two planes.

[0012] As a preferred solution of the conveyor coal scraping device of the present invention, the two groups of steering parts include two groups of steering seats, steering rollers connected between the two groups of steering seats, and slots opened on the surfaces of the two groups of steering parts, one end of the steering roller is connected to the output end of the motor, and the steering roller drives the transmission belt for transmission.

[0013] As a preferred solution of the conveyor coal scraper device of the present invention, the coal scraper plate also includes limit blocks arranged on both sides and inserted into the slot to limit the position, and when the limit blocks are displaced to the bottom of the slot, the first separation plate and the second separation plate are in contact with the transmission belt.

[0014] As a preferred solution of the conveyor coal scraping device of the present invention, the first separation plate includes a plurality of groups of tips and gathering ends, the gathering ends are not in contact with the transmission belt, and the tips and the gathering ends are staggered.

[0015] As a preferred solution of the conveyor coal scraping device of the present invention, the second separation plate includes a plurality of shovel ends and a dividing end arranged on the output side in the same horizontal direction as the gathering end, and the dividing end is on the horizontal center line of the shovel end.

[0016] The beneficial effect of the conveyor coal scraper device of the present invention is that the large pieces of coal can be exposed to greater pressure at the first time when contacting the scraper, thereby dividing the large pieces of coal and reducing the blockage of the contact end of the scraper.

[0017] Another object of the present invention is to provide a fall prevention solution, the purpose of which is to solve the serious risk of falling caused by cleaning personnel cleaning fallen coal near the hole during work.

[0018] To solve the above technical problems, the present invention also provides the following technical solutions: an anti-falling solution, which includes a conveyor coal scraping device; and a detection system, which includes a radar transmitting end and an infrared detector, and the radar transmitting end is 90° to the radar receiving end.

[0019] As a preferred solution of the anti-falling scheme of the present invention, infrared detectors are installed on the upper part of the four corners of the hole, 3m from the ground, and the dual linkage protection of radar and infrared detectors implements alarm and locking equipment through signal transmission.

[0020] The beneficial effect of the anti-falling scheme of the present invention is that it can more effectively prevent cleaning personnel from mistakenly entering the work site during the work operation, thereby preventing the occurrence of danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is an overall side view of the present invention.

[0024] Figure 3 It is a top view of the present invention.

[0025] Figure 4 It is an enlarged view of the structure of the coal scraper in the present invention.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the second separation plate in the present invention.

[0027] Figure 6 It is a schematic diagram (top view) of the radar and infrared arrangement in the present invention.

[0028] Figure 7 It is a block diagram of the working principle of the detection system in the present invention.

[0029] Figure 8 Schematic diagram of the circuit principle of the detection system in the present invention. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figure 1 , which is the first embodiment of the present invention, and provides a conveyor coal scraping device, including a transmission assembly 100, which includes a support frame 101, an output motor 102 arranged at one side of the support frame 101, an output roller 103 connected to the output end of the output motor 102, a transmission belt 104 and a steering component 105 that cooperate with the output roller 103 for transmission, a coal scraping plate 200, which is in contact with the transmission belt 104, and includes a first separation plate 201 and a second separation plate 202 arranged at the output side of the first separation plate 201, the support frame 101 includes an extension plate 101a and a rotating shaft 101b, and the output roller 103 rotates coaxially with the rotating shaft 101b.

[0035] Furthermore, the steering component 105 includes several groups of driven rollers 105a, several groups of symmetrically arranged fixing frames 105b and two groups of steering members 105c. A rotating shaft 105b-1 is connected between the two symmetrically arranged fixing frames 105b. The driven rollers 105a are fixed to the rotating shaft 105b-1 and rotate coaxially.

[0036] Furthermore, several groups of driven rollers 105a are connected to the transmission belt 104, and the transmission belt 104 rotates around the driven rollers 105a by switching between two planes. The two groups of steering parts 105c include two groups of steering seats 105c-1, steering rollers 105c-2 connected between the two groups of steering seats 105c-1, and slots 105c-11 opened on the surfaces of the two groups of steering parts 105c. One end of the steering roller 105c-2 is connected to the output end of the motor, and the steering roller 105c-2 drives the transmission belt 104 for transmission.

[0037] The specific coal enters the transmission belt 104. At this time, the output motor 102 provides power to enable the output roller 103 to drive the transmission of the transmission belt 104. Since the factory is usually divided into two floors, a transmission layer will be set on the second floor, and the first floor is responsible for providing power. When several groups of driven rollers 105a are connected to the transmission belt 104, they need to be turned through multiple groups of driven rollers 105a. Therefore, several groups of driven rollers 105a will be set on the ground of the second floor to involve the belt, and a steering roller 105c-2 is set at the end of the hole on the second floor. The steering roller 105c-2 is also controlled by a motor, so as to serve as an output end. The steering roller 105c-2 cooperates with the output roller 103 to realize the operation of the entire transmission belt 104. The steering roller 105c-2 on the second floor -2 is provided with a ground hole at the output end. This hole and the hole through which the transmission belt 104 passes through the second floor are the holes in the hole anti-falling solution that needs to be solved in this solution. The hole provided at the rear end of the turning roller 105c-2 is used to transmit coal for transportation to the first floor or for collection, thereby realizing the transmission of the entire transmission belt. During this process, the driven roller 105a is used to support the transmission belt 104 in a taut state to avoid slipping, and the connection method between the driven roller 105a and the transmission belt 104 can realize the steering of the rotating belt 104. When the transmission belt 104 contacts the steering roller 105a by staggering on both sides, it is the best effect. In this winding method, the tightening effect of the transmission belt 104 and the steering effect of the transmission belt can be improved.

[0038] Example 2

[0039] Reference Figure 1 to Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, the coal scraper 200 also includes limit blocks 203 arranged on both sides for plugging and limiting the slot 105c-11. When the limit blocks 203 move to the bottom of the slot 105c-11, the first separation plate 201 and the second separation plate 202 are both in contact with the transmission belt 104. The first separation plate 201 includes several groups of tip ends 201a and gathering ends 201b. The gathering ends 201b do not contact the transmission belt 104, and the tip ends 201a and the gathering ends 201b are alternately arranged.

[0040] Furthermore, the second separation plate 202 includes a plurality of shovel ends 202a and a splitting end 202b arranged on the output side in the same horizontal direction as the gathering end 201b, and the splitting end 202b is on the horizontal center line of the shovel end 202a.

[0041] Specifically, at the end of the second-floor transmission belt 104, i.e., at the turning point of the turning roller 105c-2 at the transmission belt 104, a coal scraper 200 is provided to scrape and clean the coal powder on the transmission belt 104. The side wall of the coal scraper 200 has a limit block 203. The staff can place and remove the coal scraper 200 by clamping the limit block 203 in the slot 105c-11. In this process, the degree to which the coal is adsorbed on the transmission belt 104 depends on the humidity of the coal and the displacement time of the transmission. When the humidity is high, the coal is adsorbed on the transmission belt 104. When the time of being held for too long, the coal will be seriously adsorbed on the surface of the transmission belt 104. At this time, the first separation plate 201 on the coal scraper 200 will first contact with the partially adsorbed coal. Since the first separation plate 201 is provided with a plurality of groups of tips 201a and gathering ends 201b, the tips 201a will first contact the coal powder. The tips can generate a greater pressure due to the smaller contact surface, so that it is easier to clean and crush the large pieces of coal powder. At this time, the adsorption effect of the crushed coal powder is greatly reduced, and a part of the small pieces of coal powder itself will be directly removed from the scraper 200. The coal scraper 200 is separated from the transmission belt 104 at the top, and the remaining part of the coal powder is not removed even though it is broken into two parts by the tip 201a. At this time, since the coal scraper 200 is arranged in an arc shape as a whole, and the tip 201a and the gathering end 201b are arranged in a staggered manner, the remaining part of the coal powder will enter the gathering end 201b. Since the second separation plate 202 is arranged on the central horizontal line of the gathering end 201b, this part of the coal powder will directly contact the shovel end 202a of the second separation plate 202, and the shovel end 202a contacts the transmission belt 104, and the transmission belt 104 is on the top of the coal scraper 200. The remaining coal powder will be scraped off a second time by the shovel end 202 after contacting the shovel end 202a. The scraped coal powder may still be in large pieces. At this time, this part of the coal powder will reach the position of the dividing end 202b again. When the coal powder contacts the dividing end 202b, it will be separated again. The design of the dividing end 202b here is to avoid that the coal is not directly collected at the rear end of the turning roller 105c-2, but enters the next transmission belt. If the secondary segmentation is not performed through the dividing end 202b, the slightly larger pieces of coal will form larger pieces again after entering the next transmission belt and be adsorbed on the transmission belt.

[0042] Example 3

[0043] Reference Figures 1 to 8, which is the third embodiment of the present invention, and further provides an anti-falling solution. It includes a detection system 300, which includes a radar transmitter and an infrared detector, and the radar transmitter and the radar receiver are at 90 degrees.

[0044] Furthermore, infrared detectors are installed on the upper part of the four corners of the hole, 3m from the ground, and the dual linkage protection of radar and infrared detector implements alarm and locking equipment through signal transmission.

[0045] Furthermore, four columns of about 1.8 meters are installed around the hole. Four sets of laser radar transmitters and radar receivers can be installed on each column. Each set of radar transmitters and radar receivers are 40 mm apart from each other. The radar transmitters and radar receivers are 90 degrees apart. Infrared detectors are installed at the top of the four corners of the hole, about 3 meters from the ground. The dual linkage protection of radar and infrared detectors implements alarm and locking equipment through signal transmission to prevent on-duty personnel from falling into the hole and causing personal injury accidents.

[0046] Specifically, when a person enters the first-layer protection sensing area, an alarm is triggered, and when a person enters the second-layer protection areas 1-4, the power supply of the output motor 102 is cut off.

[0047] When personnel enter the first layer of protection circle, the infrared detection alarm, on-site alarm and central control room alarm are triggered. The first is to remind the on-site duty personnel that they have entered the danger zone, and the second is to remind the on-duty personnel in the central control room that someone has entered the danger zone. They need to take necessary actions, use the loudspeaker to warn and drive away, or manually cut off the power supply of the conveyor. When the conveyor is running, when personnel enter the second layer of protection circle, the infrared detection alarm is triggered and the radar detection alarm is triggered at the same time, automatically cutting off the power supply of the conveyor.

[0048] When the conveyor is running, when a person enters the first protection circle and triggers the infrared detection alarm, B1 is energized, 1KA is energized, and the on-site alarm and the central control room alarm are activated. When the conveyor is running, when a person enters the second protection circle and triggers the infrared detection alarm, 2KA is energized, 3KA is energized, and the power supply of the conveyor is automatically cut off. At the same time, the 3KA signal is sent to the control room, and the conveying system program is chained.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A conveyor coal scraping device, characterized in that: include, A transmission assembly (100) comprises a support frame (101), an output motor (102) arranged on one side of the support frame (101), an output roller (103) connected to the output end of the output motor (102), a transmission belt (104) coordinated with the output roller (103) for transmission, and a steering component (105); The coal scraper plate (200) is attached to the transmission belt (104), and comprises a first separation plate (201) and a second separation plate (202) arranged on the output side of the first separation plate (201).

2. The conveyor coal scraper device according to claim 1, characterized in that: The support frame (101) comprises an extension plate (101a) and a rotating shaft (101b), and the output roller (103) rotates coaxially with the rotating shaft (101b).

3. The conveyor coal scraper device according to claim 1 or 2, characterized in that: The steering component (105) comprises a plurality of groups of driven rollers (105a), a plurality of groups of symmetrically arranged fixing frames (105b) and two groups of steering members (105c); A rotating shaft (105b-1) is connected between the two symmetrically arranged sets of fixing frames (105b), and the driven roller (105a) is fixed to the rotating shaft (105b-1) and rotates coaxially.

4. The conveyor coal scraper device according to claim 3, characterized in that: A plurality of groups of driven rollers (105a) are connected to a transmission belt (104), and the transmission belt (104) rotates around the driven rollers (105a) by switching between two planes.

5. The conveyor coal scraper device according to claim 4, characterized in that: The two groups of steering members (105c) include two groups of steering seats (105c-1), steering rollers (105c-2) connected between the two groups of steering seats (105c-1), and slots (105c-11) opened on the surfaces of the two groups of steering members (105c); One end of the steering roller (105c-2) is connected to the output end of the motor, and the steering roller (105c-2) drives the transmission belt (104) to transmit.

6. The conveyor coal scraper device according to claim 5, characterized in that: The coal scraper (200) further comprises limit blocks (203) arranged on both sides and inserted into and limited by the slot (105c-11); when the limit blocks (203) are displaced to the bottom of the slot (105c-11), both the first separation plate (201) and the second separation plate (202) are in contact with the transmission belt (104).

7. The conveyor coal scraper device according to claim 6, characterized in that: The first separation plate (201) includes a plurality of groups of pointed ends (201a) and a gathering end (201b), and the gathering end (201b) does not contact the transmission belt (104); The pointed ends (201a) and the gathering ends (201b) are arranged alternately.

8. The conveyor coal scraper device according to claim 7, characterized in that: The second separation plate (202) comprises a plurality of shovel ends (202a) and a dividing end (202b) arranged on the output side in the same horizontal direction as the gathering end (201b); The dividing end (202b) is on the horizontal center line of the shovel end (202a).

9. A fall prevention scheme, characterized in that: It comprises a conveyor coal scraper device as claimed in any one of claims 1 to 8; and a detection system (300), which comprises a radar transmitting end and an infrared detector, wherein the radar transmitting end is at 90 degrees to the radar receiving end.

10. The anti-falling solution according to claim 9, characterized in that: Infrared detectors are installed on the upper four corners of the hole, 3m from the ground. The dual linkage protection of radar and infrared detectors implements alarm and locking equipment through signal transmission.

Citation Information

Patent Citations

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