Unattended coal milling system

Abstract

The unattended coal grinding system comprises a coal grinding mechanism, a weighing mechanism, an unmanned transfer trolley, a meteorological monitoring mechanism and an upper controller, the coal grinding mechanism is arranged in a shed area, a coal unloading point is located outside the shed area, the weighing mechanism is arranged below a discharging port of the coal grinding mechanism in a suspended mode, and the weighing mechanism is provided with a feeding port and a discharging port; a feeding port of the weighing mechanism is communicated with a discharging port of the coal grinding mechanism, a feeding valve is arranged at the communication position, a discharging port of the weighing mechanism faces downwards and is provided with a discharging valve, the unmanned transfer trolley travels to the position below the discharging port of the weighing mechanism for feeding and transfers coal to a coal unloading point for unloading operation, and the meteorological monitoring mechanism is arranged outside a shed area. And the meteorological monitoring mechanism is used for monitoring meteorological conditions outside the shed area, the coal grinding mechanism, the weighing mechanism, the unmanned transfer trolley and the meteorological monitoring mechanism are all electrically connected with the upper controller, the structure is simple, completely unmanned operation can be achieved, and the intelligent degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of coal material processing, and in particular relates to an unattended coal grinding system. Background Art

[0002] Thermal power plants consume a large amount of coal. After the coal is transported to the plant, it needs to be crushed into coal powder by a coal mill, and then the coal powder is sent to the coal unloading point for stacking and standby use. Of course, the coal can also be tempered in the coal mill, that is, coal of different qualities is blended so that the final coal powder meets the process requirements of the thermal power plant. However, these operations are currently performed manually, which requires a lot of manpower. At the same time, a large amount of equipment is used, especially a large number of transport vehicles, which requires a larger site for vehicle transfer. Moreover, due to the limited site, there is a safety risk of collision between equipment. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide an unmanned coal grinding system which has a simple structure and can realize completely unmanned operation.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an unmanned coal grinding system, comprising a coal grinding mechanism, a weighing mechanism, an unmanned transfer vehicle, a meteorological monitoring mechanism and a host controller, the coal grinding mechanism is arranged in a shed area, and the coal unloading point is located outside the shed area, the weighing mechanism is suspended below the discharge port of the coal grinding mechanism, and the weighing mechanism has a feed port and a discharge port, and the feed port of the weighing mechanism is connected with the discharge port of the coal grinding mechanism, and a feed valve is provided at the connection point, the discharge port of the weighing mechanism faces downward and is provided with a discharge valve, the unmanned transfer vehicle travels to the bottom of the discharge port of the weighing mechanism to load materials, and transfers the coal to the coal unloading point for unloading operations, the meteorological monitoring mechanism is arranged outside the shed area, and is used to monitor the meteorological conditions outside the shed area, the coal grinding mechanism, the weighing mechanism, the unmanned transfer vehicle and the meteorological monitoring mechanism are all electrically connected to the host controller.

[0005] The beneficial effect of the above technical solution is that the coal grinding mechanism, weighing mechanism and unmanned transfer vehicle can operate in an orderly manner under the control of the upper controller, so that the coal powder ground into powder can be added to the unmanned transfer vehicle in batches, and the unmanned transfer vehicle can be weighed when adding materials, so as to avoid the unmanned transfer vehicle from being overloaded and affecting its normal operation. When a meteorological monitoring mechanism is set up, when it detects that the meteorological conditions outside the shed area are not good, the upper controller can control the coal grinding mechanism, weighing mechanism and unmanned transfer vehicle to stop running, especially the unmanned transfer vehicles outside the shed area can return to the shed area in an orderly manner.

[0006] In the above technical solution, a plurality of unmanned transport vehicles are provided, and the driving paths of the plurality of unmanned transport vehicles are set by the upper controller.

[0007] The beneficial effect of the above technical solution is that it enables multiple unmanned transport vehicles to operate in an orderly manner, thereby ensuring that the transportation capacity meets the demand.

[0008] The weighing mechanism described in the above technical solution includes a tank body, a support frame and a weighing element. The upper end of the tank body is provided with an inlet, and the lower end of the tank body is provided with an outlet. The inlet and outlet of the tank body respectively constitute the feed port and the discharge port of the weighing mechanism. The tank body is supported on the support frame through the weighing element, and the weighing element is used to weigh the inside of the tank body.

[0009] The beneficial effect of the above technical solution is that its structure is simple, so that the support frame supports the tank body, and the weighing element weighs the tank body on the support frame to more accurately grasp the weight of the material added on the unmanned transfer vehicle.

[0010] The weighing element in the above technical solution is a hook scale, a first lifting ring is provided in the middle of the upper end of the tank body, a second lifting ring is provided at the upper end of the support frame, the first lifting ring and the second lifting ring are connected through the weighing element to suspend the tank body below the support frame, and a through hole penetrating upward and downward is provided at the position of the upper end of the support frame corresponding to the entrance of the tank body, and the through hole is used for connecting the feed port of the weighing mechanism with the discharge port of the coal grinding mechanism.

[0011] The beneficial effects of the above technical solution are: its structure is simple and the weighing effect is good.

[0012] In the above technical solution, a plurality of guide rods are vertically arranged at the upper edge of the tank body and penetrate the support frame, and an enlarged limit block is provided at the upper end of the guide rod.

[0013] The beneficial effect of the above technical solution is that the tank body can be limited relative to the support frame by multiple guide rods to prevent the tank body from shaking on the support frame without affecting the normal weighing of the tank body. In addition, the setting of the limit block can also prevent the tank body from falling due to accidents.

[0014] In the above technical solution, a plurality of vibration motors spaced apart in an annular direction are also arranged on the side wall of the tank.

[0015] The beneficial effect of the above technical solution is that it can avoid the coal powder from settling in the tank body and causing difficulty in discharging.

[0016] In the above technical solution, a plurality of laser radars distributed at intervals are arranged in the shed area, and the laser radars are electrically connected to the upper controller.

[0017] The beneficial effect of the above technical solution is that multiple laser radars can scan the shed area, and the upper controller can control the movement of the unmanned transport vehicle according to the scanning information of the laser radar, especially accurate obstacle avoidance can be achieved during movement.

[0018] The feed valve and the discharge valve described in the above technical solution are both electric gate valves.

[0019] The beneficial effects of the above technical solution are: it is easy to open and close, and it is not easy to get stuck when opening and closing.

[0020] The meteorological monitoring mechanism in the above technical solution includes a vertical pole and a wind speed measuring device and a rainfall measuring device arranged at the upper end of the vertical pole.

[0021] The beneficial effect of the above technical solution is that its structure is simple, so that the unmanned transfer vehicle can be controlled by the upper controller to move back to the shed area on rainy or windy days.

[0022] In the above technical solution, the feed inlet of the weighing mechanism and the discharge outlet of the coal grinding mechanism are connected through a hose.

[0023] The beneficial effect of the above technical solution is that the connection point between the weighing mechanism and the coal grinding mechanism can be connected through a hose, so that there is a movable margin between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of an unattended coal grinding system according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the coordination of the coal grinding mechanism, the weighing mechanism and the unmanned transfer vehicle in the embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the structure of the meteorological monitoring mechanism described in an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of electrical connection of the upper controller in the embodiment of the present invention.

[0028] In the figure: 1. coal grinding mechanism; 2. weighing mechanism; 21. tank body; 211. inlet; 212. outlet; 213. first lifting ring; 214. guide rod; 215. limit block; 22. support frame; 221. second lifting ring; 222. through hole; 23. weighing element; 24. vibration motor; 25. feed valve; 26. discharge valve; 3. unmanned transfer vehicle; 4. meteorological monitoring mechanism; 41. pole; 42. wind speed meter; 43. rainfall meter; 5. upper controller; 6. shed area; 61. laser radar; 7. hose. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] like Figure 1 and Figure 4 As shown, this embodiment provides an unmanned coal grinding system, including a coal grinding mechanism 1, a weighing mechanism 2, an unmanned transfer vehicle 3, a meteorological monitoring mechanism 4 and an upper controller 5, wherein the coal grinding mechanism 1 is arranged in a shed area 6, and the coal unloading point is located outside the shed area 6, the weighing mechanism 2 is suspended below the discharge port of the coal grinding mechanism 1, and the weighing mechanism 2 has a feed port and a discharge port, and the feed port of the weighing mechanism 2 is connected with the discharge port of the coal grinding mechanism 1, and a feed valve 25 is arranged at the connection point, the discharge port of the weighing mechanism 2 faces downward and is provided with a discharge valve 26, the unmanned transfer vehicle 3 travels to the lower part of the discharge port of the weighing mechanism 2 to load the material, and transfers the coal to the coal unloading point for unloading, and the meteorological monitoring mechanism 4 is arranged It is arranged outside the shed area 6 to monitor the meteorological conditions outside the shed area 6. The coal grinding mechanism 1, weighing mechanism 2, unmanned transfer vehicle 3 and meteorological monitoring mechanism 4 are all electrically connected to the upper controller 5, so that the coal grinding mechanism, weighing mechanism and unmanned transfer vehicle can operate in an orderly manner under the control of the upper controller, so that the coal powder ground into powder can be added to the unmanned transfer vehicle in batches, and the unmanned transfer vehicle can be weighed when adding materials, so as to avoid the unmanned transfer vehicle from being overloaded and affecting its normal operation. The meteorological monitoring mechanism can be set up so that when the meteorological conditions outside the shed area are detected to be poor, the upper controller can control the coal grinding mechanism, weighing mechanism and unmanned transfer vehicle to stop running, especially the unmanned transfer vehicle outside the shed area can return to the shed area in an orderly manner.

[0031] like Figure 1 and Figure 4 As shown, in the above technical solution, multiple unmanned transport vehicles 3 are provided, and the driving paths of the multiple unmanned transport vehicles 3 are set by the upper controller 5, so that the multiple unmanned transport vehicles can operate in an orderly manner, thereby ensuring that the transportation capacity meets the demand.

[0032] like Figure 2As shown, the weighing mechanism 2 in the above technical solution includes a tank body 21, a support frame 22 and a weighing element 23. The upper end of the tank body 21 is provided with an inlet 211, and the lower end of the tank body 21 is provided with an outlet 212. The inlet 211 and the outlet 212 of the tank body 21 respectively constitute the feed port and the discharge port of the weighing mechanism 2. The tank body 21 is supported on the support frame 22 through the weighing element 23. The weighing element 23 is used to weigh the inside of the tank body 21. It has a simple structure, so that the support frame holds up the tank body, and the weighing element weighs the tank body on the support frame to more accurately grasp the weight of the material added on the unmanned transfer vehicle.

[0033] like Figure 2 As shown, the weighing element 23 in the above technical solution is a hook scale, a first lifting ring 213 is provided in the middle of the upper end of the tank body 21, a second lifting ring 221 is provided at the upper end of the support frame 22, the first lifting ring 213 and the second lifting ring 221 are connected through the weighing element 23 to suspend the tank body 21 below the support frame 22, and a through hole 222 penetrating from top to bottom is provided at the position of the upper end of the support frame 22 corresponding to the inlet 211 of the tank body 21, the through hole 222 is used for connecting the feed port of the weighing mechanism 2 with the discharge port of the coal grinding mechanism 1, the structure is simple, and the weighing effect is good.

[0034] like Figure 2 As shown, in the above technical solution, a plurality of guide rods 214 are vertically arranged at the upper edge of the tank body 21 and penetrate the support frame 22. The upper end of the guide rod 214 has an enlarged limit block 215, so that the tank body can be limited relative to the support frame by the plurality of guide rods to prevent the tank body from shaking on the support frame without affecting the normal weighing of the tank body. In addition, the limit block can also prevent the tank body from falling due to accidents.

[0035] In the above technical solution, a plurality of vibration motors 24 are also arranged on the side wall of the tank body 21 at intervals in the circumferential direction, so as to avoid the coal powder being deposited in the tank body and causing difficulty in discharging.

[0036] like Figure 4 As shown, in the above technical solution, a plurality of laser radars 61 are arranged in the shed area 6 at intervals, and the laser radar 61 is electrically connected to the upper controller 5, so that the shed area can be scanned by a plurality of laser radars, and the upper controller controls the movement of the unmanned transport vehicle according to the scanning information of the laser radar, especially realizing accurate obstacle avoidance during movement.

[0037] The feed valve 25 and the discharge valve 26 described in the above technical solution are both electric gate valves, which are easy to open and close and are not prone to getting stuck when opening and closing.

[0038] like Figure 3As shown, the meteorological monitoring mechanism 4 in the above technical solution includes a pole 41 and a wind speed meter 42 and a rainfall meter 43 arranged at the upper end of the pole 41. Its structure is simple, so that the unmanned transfer vehicle can be controlled by the upper controller to move back to the shed area on rainy or windy days.

[0039] like Figure 2 As shown, in the above technical solution, the feed port of the weighing mechanism 2 is connected to the discharge port of the coal grinding mechanism 1 through a hose 7, so that the weighing mechanism and the coal grinding mechanism can be connected through the hose, so that there is a movable margin between the two.

[0040] In this embodiment, the upper controller can be arranged in the shed area 6 (the shed area can be a warehouse made of iron sheets, and it has an open entrance and exit for unmanned transfer vehicles to enter and exit), the laser radar can be arranged on the inner wall of the shed area 6, and the unmanned transfer vehicle and the upper controller in this embodiment both transmit signals by wireless communication (which belongs to the prior art and is not described here), and the coal grinding mechanism in this embodiment can directly adopt the existing coal grinding machine, which is controlled to start and stop by the upper controller, the wind speed meter 42 and the rainfall meter 43 of the meteorological monitoring mechanism in this embodiment are electrically connected to the upper controller, and the weighing element 23, the vibration motor 24, the feed valve 25 and the discharge valve 26 of the load-bearing mechanism in this embodiment are electrically connected to the upper controller.

[0041] In this embodiment, laser radars can be installed on the inner walls of the four sides of the shed area, so that a full-area scan of the entire shed area can be achieved, thereby more accurately controlling the movement of the unmanned transfer vehicle in the shed area.

[0042] The tank body in this embodiment is suspended, and the area below it is the coal loading point for the unmanned transport vehicle, and the support frame is correspondingly provided with a passage for the unmanned transport vehicle to enter and exit the coal loading point (the coal loading point is similar to a parking space).

[0043] In this embodiment, a threshold value can be set for the amount of coal loaded in the tank body. When the tank body is loaded with coal, the discharge valve is closed and the feed valve is in an open state. When the weighing element weighs the weight of the coal in the tank body to reach the threshold value, the feed valve is closed. When there is an empty unmanned transfer vehicle at the coal loading point, the discharge valve is opened and the vibration motor starts to run to discharge the coal in the tank body into the unmanned transfer vehicle.

[0044] The chassis of the unmanned transport vehicle described in this embodiment can be an AGV chassis, which belongs to the prior art and will not be described in detail here.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An unattended coal grinding system, characterized in that: The invention comprises a coal grinding mechanism (1), a weighing mechanism (2), an unmanned transfer vehicle (3), a meteorological monitoring mechanism (4) and an upper controller (5), wherein the coal grinding mechanism (1) is arranged in a shed area (6), and the coal unloading point is located outside the shed area (6), the weighing mechanism (2) is suspended below the discharge port of the coal grinding mechanism (1), and the weighing mechanism (2) has a feed port and a discharge port, and the feed port of the weighing mechanism (2) is connected to the discharge port of the coal grinding mechanism (1), and a feed valve (2) is arranged at the connection point. 5), the discharge port of the weighing mechanism (2) faces downward and is provided with a discharge valve (26), the unmanned transfer vehicle (3) travels to the lower part of the discharge port of the weighing mechanism (2) to load the coal, and transfers the coal to the coal unloading point for unloading, the meteorological monitoring mechanism (4) is arranged outside the shed area (6) to monitor the meteorological conditions outside the shed area (6), and the coal grinding mechanism (1), the weighing mechanism (2), the unmanned transfer vehicle (3) and the meteorological monitoring mechanism (4) are all electrically connected to the upper controller (5).

2. The unattended coal grinding system according to claim 1, characterized in that: A plurality of the unmanned transport vehicles (3) are provided, and the travel paths of the plurality of the unmanned transport vehicles (3) are set by the upper controller (5).

3. The unattended coal grinding system according to claim 1, characterized in that: The weighing mechanism (2) comprises a tank body (21), a support frame (22) and a weighing element (23); an inlet (211) is arranged at the upper end of the tank body (21), and an outlet (212) is arranged at the lower end of the tank body (21); the inlet (211) and the outlet (212) of the tank body (21) respectively constitute a feed port and a discharge port of the weighing mechanism (2); the tank body (21) is supported on the support frame (22) by the weighing element (23); and the weighing element (23) is used to weigh the inside of the tank body (21).

4. The unattended coal grinding system according to claim 3, characterized in that: The weighing element (23) is a hook scale, a first lifting ring (213) is provided in the middle of the upper end of the tank body (21), a second lifting ring (221) is provided at the upper end of the support frame (22), the first lifting ring (213) and the second lifting ring (221) are connected through the weighing element (23) so as to suspend the tank body (21) below the support frame (22), and a through hole (222) penetrating from top to bottom is provided at a position of the upper end of the support frame (22) corresponding to the inlet (211) of the tank body (21), the through hole (222) being used for connecting the feed port of the weighing mechanism (2) with the discharge port of the coal grinding mechanism (1).

5. The unattended coal grinding system according to claim 4, characterized in that: A plurality of vertically arranged guide rods (214) penetrating the support frame (22) are provided at the upper edge of the tank body (21), and an enlarged limiting block (215) is provided at the upper end of the guide rod (214).

6. The unattended coal grinding system according to claim 3, characterized in that: A plurality of vibration motors (24) spaced apart in an annular direction are also arranged on the side wall of the tank body (21).

7. The unattended coal grinding system according to claim 1, characterized in that: A plurality of laser radars (61) distributed at intervals are arranged in the shed area (6), and the laser radars (61) are electrically connected to the upper controller (5).

8. The unattended coal grinding system according to claim 1, characterized in that: The feed valve (25) and the discharge valve (26) are both electric gate valves.

9. The unattended coal grinding system according to claim 1, characterized in that: The meteorological monitoring mechanism (4) comprises a vertical pole (41) and a wind speed measuring device (42) and a rainfall measuring device (43) arranged at the upper end of the vertical pole (41).

10. The unattended coal grinding system according to claim 1, characterized in that: The feed inlet of the weighing mechanism (2) is connected to the discharge outlet of the coal grinding mechanism (1) via a hose (7).

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