Coal yard structure with remote controlled bridge crane

Abstract

The present invention discloses a coal yard structure of a remote-controlled bridge crane, wherein a concrete bottom plate is fixedly arranged at the bottom of the pit, a concrete wall plate is fixedly arranged at the pit wall, a strip platform is fixedly arranged on the top surface of the concrete bottom plate, a plurality of partition wall plates are evenly distributed between the strip platform and the concrete wall plate, the partition wall plates divide the foundation pit on both sides of the strip platform into a plurality of coal storage pits, the pit bottom surface and the pit wall surface of the coal storage pit are covered with bottom steel plates and side steel plates, a vibrator is arranged at the center of the pit bottom of the coal storage pit and below the bottom steel plate, a side wall is arranged on the top surface of the concrete wall plate, and door openings are arranged at the positions of the strip platforms respectively, a bridge is spanned across the upper part between the side walls, a trolley is arranged on the bridge, a digging claw is arranged at the bottom of the trolley, a water spray pipe A is arranged at the bottom of the trolley, a loading and unloading boss is arranged on the side wall of the strip platform facing the coal storage pit, and a water spray pipe B is arranged on the unloading platform. As can be seen from the above structure, the coal yard structure of the remote-controlled bridge crane of the present invention can ensure the efficiency of the digging claw in digging coal each time.

Description

Technical Field

[0001] The invention relates to the technical field of coal storage, coal taking and coal transportation in a coal yard supporting a power plant, and in particular to a coal yard structure of a remote-controlled bridge crane. Background Art

[0002] In order to control the cost of power generation, power plants generally purchase coal of different types and calorific values ​​from different origins, and then blend different types of coal according to power generation requirements before burning them as fuel for generators, thereby ensuring the power generation effect while minimizing the cost of power generation. In this production situation, it is necessary to transport different types of coal in the coal yard in proportion and then blend and mix them; when storing coal, different types of coal must be stored in their corresponding coal piles after entering the coal yard, and different types of coal are piled at different locations in the coal yard.

[0003] The applicant uses a bridge crane in the coal yard. Compared with the continuous transportation mode of the bucket wheel machine, the transportation efficiency of the bridge crane is lower than that of the bucket wheel machine, but the purchase cost of the bridge crane is much lower than that of the bucket wheel machine. In addition, due to the special needs of the coal yard of the power plant mentioned above, the bucket wheel machine needs to switch to different coal piles frequently, and the mobile efficiency of the bucket wheel machine is relatively poor, so this will make the overall efficiency of the bucket wheel machine lower than that of the bridge crane.

[0004] However, in order to ensure the working efficiency of the coal yard, the coal yard structure needs to be coordinated with the bridge crane, and the bridge crane also needs to be improved to better meet the use conditions of the coal yard supporting the power plant.

[0005] In addition, when coal is stored in the coal yard or taken out of the coal yard, coal dust will be raised, resulting in a poor air environment in the coal yard. Moreover, the coal stored in the coal yard needs to be compacted as much as possible to maximize the unit storage capacity of the coal yard and improve storage efficiency, and it is also necessary to prevent the coal in the coal yard from spontaneous combustion. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a coal yard structure of a remote-controlled bridge crane, wherein a bridge frame reciprocating along a track A and a trolley reciprocating along a track B enable the digging claw to move to various positions in the coal yard, thereby facilitating the digging of different types of coal corresponding to different coal storage pits and transporting them to coal trucks, and the digging claw is moved by the bridge frame and the trolley to dig coal at different positions in the coal storage pit, thereby ensuring the efficiency of the digging claw in each coal digging.

[0007] The technical solution adopted by the present invention is:

[0008] The coal yard structure of the remote-controlled bridge crane comprises a rectangular foundation pit dug on the ground, wherein a concrete bottom plate is fixedly arranged at the bottom of the foundation pit, a concrete wall plate fixedly arranged on the pit wall of the foundation pit is fixedly arranged on the pit wall fixedly connected to the concrete bottom plate, a strip platform arranged along the length direction is fixedly arranged at the midline of the length direction of the top surface of the concrete bottom plate, both ends of the strip platform are extended to be fixedly connected to the concrete wall plate in the width direction of the foundation pit, a plurality of partition wall plates are evenly distributed along the length direction between the strip platform and the concrete wall plate in the length direction of the foundation pit, the partition wall plates divide the foundation pit on both sides of the strip platform into a plurality of coal storage pits, the pit bottom surface and the pit wall surface of the coal storage pit are correspondingly covered with bottom steel plates and side steel plates fixed to each other, a vibrator in vibration contact with the bottom steel plate is fixedly arranged at the center of the pit bottom of the coal storage pit and below the bottom steel plate, and the top surfaces of the concrete wall plates are all facing A side wall is fixedly provided on the top, and the foundation pit is located within the range surrounded by the side wall. A top cover is provided on the top fixed cover of the side wall. Door openings are provided at the bottom of the side wall in the width direction of the foundation pit and at positions corresponding to the strip platform. A bridge frame which can reciprocate horizontally along the length direction of the foundation pit is provided across the upper part between the side walls in the length direction of the foundation pit. The bridge frame is parallel to the width direction of the foundation pit, and a trolley which can reciprocate horizontally along the bridge frame is provided on the bridge frame. A digging claw which can move up and down is provided at the bottom of the trolley. A water spray pipe A which sprays water downwards is also provided along the edge at the bottom of the trolley. Loading and unloading bosses are provided in the middle of the top surface of the side wall of the strip platform facing the coal storage pit. The bottom surface of the unloading platform is a slope A which is inclined upward away from the strip platform. A water spray pipe B which sprays water to the coal storage pit is provided on the slope A. Both the water spray port A of the water spray pipe A and the water spray port B of the water spray pipe B are provided with atomizing devices.

[0009] A further improvement of the present invention is that a plurality of concrete columns are evenly fixed along the edge of the pit wall at positions of the concrete bottom plate corresponding to the edge of the pit wall of the foundation pit, and the concrete columns are embedded and fixed in the concrete wall plate.

[0010] A further improvement of the present invention is that horizontal beams are fixed at the top ends of the concrete columns corresponding to the side walls in the length direction of the foundation pit and along the side walls, and both ends of the horizontal beams extend along the length direction of the foundation pit to be connected and fixed to the side walls in the width direction of the foundation pit, and the bottoms of both ends of the bridge are respectively provided with driving rollers A that reciprocate along the track A set on the top of the horizontal beam, and limit blocks A are respectively provided at the two ends of the top of the horizontal beam. When the bridge is in contact with the limit block A, the bridge, the trolley connected to the bridge, and the digging claws and water spray pipes A under the trolley are exactly located at the position of the concrete wall panel in the width direction of the foundation pit on the side where the limit block A is located.

[0011] A further improvement of the present invention is that a track B is provided on the top of the bridge frame parallel to the extension direction of the bridge frame, the trolley is provided with a driving roller B which moves back and forth along the track B, and limit blocks B are respectively provided at both ends of the top of the bridge frame. When the trolley contacts the limit blocks B, the trolley and the digging claws and water spray pipe A under the trolley are located exactly at the position of the concrete wall panel in the length direction of the foundation pit on the side where the limit block B is located.

[0012] A further improvement of the present invention is that the top end of the concrete column extends upward to the upper part of the side wall, and the end surface of the concrete column facing away from the foundation pit is flush with the side wall on the corresponding side.

[0013] A further improvement of the present invention is that a water supply tank connected to a water spray pipe A is provided in the trolley, and a water inlet on the top of the water supply tank extends upward from the roof plate of the trolley, and the top of the water inlet is a bucket-shaped structure, and the water inlet is close to one of the vertices on the top surface of the trolley. When the bridge frame and the trolley are moved to make the water inlet closest to the connection between two adjacent side walls, the water inlet is just below the water outlet of the upper water pipe, and the upper water pipe is fixed to the side wall. A solenoid valve is provided on the upper water pipe corresponding to the pit mouth of the coal storage pit, and the water supply tank is connected to the water spray pipe A through a water pump.

[0014] A further improvement of the present invention is that the top edges of the side walls of the strip table facing the coal storage pit are respectively provided with slopes B, and the slopes extend upwardly in a direction away from the corresponding coal storage pit to the top surface of the strip table, and the bottom edge of the slope B is flush with the top surface of the loading and unloading boss.

[0015] A further improvement of the present invention is that a limiting convex strip is provided on an edge of the top surface of the loading and unloading boss away from the strip platform, and the top of the limiting convex strip is flush with the top surface of the strip platform.

[0016] A further improved solution of the present invention is that when the rear wheels of the coal truck are in limiting contact with the limiting convex strips, the front wheels of the coal truck are still located on the top surface of the strip platform.

[0017] A further improvement of the present invention is that a material spreading plate is swingably connected to the top edge of the end surface of the loading and unloading boss facing away from the strip table, and the material spreading plate is swingably connected to the loading and unloading boss via a hydraulic piston.

[0018] A further improvement of the present invention is that when the piston rod of the hydraulic piston retracts the piston cylinder to the maximum stroke, the spreading plate and the end face of the loading and unloading boss facing away from the strip table are in contact with each other; when the piston rod of the hydraulic piston extends out of the piston cylinder to the maximum stroke, the angle between the spreading plate and the end face of the loading and unloading boss facing away from the strip table is 60 degrees.

[0019] A further improved solution of the present invention is that the concrete columns are symmetrically arranged on both sides of the strip platform.

[0020] A further improvement of the present invention is that the edges on both sides of the door opening are flush with the two side walls of the strip platform facing the coal storage pit.

[0021] A further improvement of the present invention is that the door opening is located between two adjacent concrete columns in the width direction of the foundation pit, and the two side edges of the door opening are flush with the facing side walls of the two adjacent concrete columns.

[0022] A further improvement of the present invention is that the bottom steel plate and the bottom surface of the coal storage pit are fixed together, and the side steel plates and the corresponding pit wall surfaces of the coal storage pit are fixed together by means of a glue layer.

[0023] A further improvement of the present invention is that the bottom steel plate is provided with an inspection hole corresponding to the position of the vibrator, and a sealing plate is detachably fixed at the inspection hole, and the bottom surface of the coal storage pit is provided with a vibrator placement groove corresponding to the vibrator, and the vibrator is fixed in the vibrator placement groove.

[0024] A further improvement of the present invention is that the water spray pipe B is a coil arranged on the slope A, and the water spray ports B of the water spray pipe B are evenly distributed on the side wall of the coil facing away from the slope A along the extension direction of the coil, and the water mist sprayed from the water spray ports B covers the range of the corresponding coal storage pit.

[0025] A further improvement of the present invention is that the water spray ports A of the water spray pipe A are evenly distributed at the bottom of the water spray pipe A along the extension direction of the water spray pipe A, and the water mist sprayed from the water spray ports A is an annular structure surrounding the digging claws.

[0026] The beneficial effects of the present invention are:

[0027] First, the coal yard structure of the remote-controlled bridge crane of the present invention enables the digging claw to move to various positions in the coal yard through the bridge frame that reciprocates along the track A and the trolley that reciprocates along the track B, so that different types of coal corresponding to different coal storage pits can be dug out and transported to the coal truck, and the digging claw can be moved to different positions in the coal storage pit by the bridge frame and the trolley to dig coal, thereby ensuring the efficiency of the digging claw in each coal digging.

[0028] Second, the coal yard structure of the remote-controlled bridge crane of the present invention can rapidly settle the coal powder raised by the digging claws during the coal digging process through the action of the water spray pipe A. Since the coal powder is raised mainly because of the coal dug up in the digging claws when the digging claws dig coal from the coal storage pit and transport it to the coal truck, the water spray pipe A can form an annular mist column around the digging claws, thereby confining the coal powder in the annular mist column and rapidly settling the coal powder through the action of water mist.

[0029] Thirdly, the coal yard structure of the remote-controlled bridge crane of the present invention corresponds to the loading and unloading platform provided in the coal storage pit through the strip platform, thereby facilitating the coal loading and unloading of coal by coal trucks without affecting the normal driving of other coal trucks.

[0030] Fourthly, the coal yard structure of the remote-controlled bridge crane of the present invention can conveniently clean the coal powder on the top surface of the strip platform into the coal storage pit through the effect of the slope B, thereby keeping the top surface of the strip platform relatively clean and preventing the coal truck from raising coal powder during the driving process on the top surface of the strip platform.

[0031] Fifth, the coal yard structure of the remote-controlled bridge crane of the present invention makes it possible for the parking position of the coal truck to remain relatively consistent by making the loading and unloading platform flush with the lowest edge of the slope B and by the role of the limiting convex strips, and can also make the coal truck as a whole tilt downward toward the rear end of the vehicle, thereby further improving the coal unloading efficiency of the coal truck.

[0032] Sixth, the coal yard structure of the remote-controlled bridge crane of the present invention can spread the coal more evenly in the coal storage pit when the coal truck unloads the coal through the function of the spreading plate.

[0033] Seventh, the coal yard structure of the remote-controlled bridge crane of the present invention, through the action of the water spray pipe B, can prevent the coal powder raised during the unloading process of the coal truck from being raised to a height exceeding the coal storage pit under the action of water mist, and can facilitate the raised coal powder to quickly settle into the coal storage pit.

[0034] Eighth, the coal yard structure of the remote-controlled bridge crane of the present invention, through the action of the vibrator arranged at the bottom of the coal storage pit and the bottom steel plate and side steel plates arranged on the inner wall of the coal storage pit, can make the gaps between the coal in the coal storage pit smaller and exhaust the air between the coal as much as possible under the action of the vibrator, so that the coal can be stored more evenly and tightly in the coal storage pit, thereby improving the coal storage efficiency of the coal storage pit and avoiding the spontaneous combustion of the coal as much as possible.

[0035] Ninth, the coal yard structure of the remote-controlled bridge crane of the present invention can act as reinforcement for the concrete siding and side walls through the action of concrete columns, effectively improving the strength, and can also serve as support columns for horizontal beams, facilitating the stable movement of the bridge frame.

[0036] Tenth, the coal yard structure of the remote-controlled bridge crane of the present invention can make the coal have a certain humidity through the water mist sprayed by the water spray pipes A and B, thereby further avoiding the possibility of spontaneous combustion of the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a top view schematic cross-sectional view of the present application after removing the top of the cover.

[0038] Figure 2This is a schematic cross-sectional view of the main view of this application. DETAILED DESCRIPTION

[0039] Combination Figure 1~Figure 2 It can be seen that the coal yard structure of the remote-controlled bridge crane includes a rectangular foundation pit dug on the ground, a concrete bottom plate 1 is fixedly provided at the bottom of the foundation pit, a concrete wall plate 2 fixedly connected to the concrete bottom plate 1 is fixedly provided on the pit wall of the foundation pit, a strip platform 3 arranged along the length direction is fixedly provided at the midline of the length direction of the top surface of the concrete bottom plate 1, both ends of the strip platform 3 extend to be fixedly connected to the concrete wall plate 2 in the width direction of the foundation pit, a plurality of partition wall plates 4 are evenly distributed along the length direction between the strip platform 3 and the concrete wall plate 2 in the length direction of the foundation pit, the partition wall plates 4 divide the foundation pit on both sides of the strip platform 3 into a plurality of coal storage pits 5, the pit bottom surface and the pit wall surface of the coal storage pit 5 are correspondingly covered with a bottom steel plate 15 and a side steel plate 16 fixed to each other, a vibrator 17 in vibration contact with the bottom steel plate 15 is fixedly provided at the center of the pit bottom of the coal storage pit 5 and below the bottom steel plate 15, and the top surface of the concrete wall plate 2 is fixedly provided with side The foundation pit is located within the range surrounded by the side walls 6. The top fixed cover of the side walls 6 is provided with a top cover 7. The bottom of the side walls 6 in the width direction of the foundation pit and the positions corresponding to the strip platform 3 are respectively provided with door openings 8. The upper part between the side walls 6 in the length direction of the foundation pit is cross-spanned with a bridge frame 11 that moves horizontally back and forth along the length direction of the foundation pit. The bridge frame 11 is parallel to the width direction of the foundation pit, and a trolley 12 that moves horizontally back and forth along the bridge frame 11 is provided on the bridge frame 11. The bottom of the trolley 12 is provided with a The digging claw 13 moves up and down, and the bottom of the trolley 12 is also provided with a water spray pipe A18 arranged along the edge to spray water downwards. The middle of the top surface of the side wall of the strip table 3 facing the coal storage pit 5 is respectively provided with a loading and unloading boss 14. The bottom surface of the unloading platform 14 is a slope A inclined upward along the direction away from the strip table 3. The slope A is provided with a water spray pipe B25 for spraying water toward the coal storage pit 5. The water spray port A of the water spray pipe A18 and the water spray port B of the water spray pipe B25 are both provided with an atomizing device.

[0040] The concrete bottom plate 1 has a plurality of concrete columns 9 evenly fixed along the edge of the pit wall at positions corresponding to the edge of the pit wall, and the concrete columns 9 are embedded and fixed in the concrete wall plate 2 .

[0041] Horizontal beams 10 are fixed at the tops of the concrete columns 9 corresponding to the side walls 6 in the length direction of the foundation pit and along the side walls 6. The two ends of the horizontal beams 10 extend along the length direction of the foundation pit and are connected and fixed to the side walls 6 in the width direction of the foundation pit. The bottoms of the two ends of the bridge 11 are respectively provided with driving rollers A that reciprocate along the track A26 set on the top of the horizontal beam 10. Limit blocks A27 are respectively provided at the two ends of the track A26 on the top of the horizontal beam 10. When the bridge 11 contacts the limit blocks A27, the bridge 11 and the trolley 12 connected to the bridge 11 and the digging claws 13 and the water spray pipes A18 under the trolley 12 are exactly located at the position of the concrete wall panel 2 in the width direction of the foundation pit on the side where the limit block A27 is located.

[0042] A track B28 is provided on the top of the bridge frame 11 parallel to the extension direction of the bridge frame 11, and the trolley 12 is provided with a driving roller B which reciprocates along the track B28. Limit blocks B29 are provided at both ends of the top of the bridge frame 11. When the trolley 12 contacts the limit blocks B29, the trolley 12 and the digging claws 13 and the water spray pipe A18 below the trolley 12 are located exactly at the position of the concrete wall panel 2 in the length direction of the foundation pit on the side where the limit block B29 is located.

[0043] The top end of the concrete column 9 extends upward to the upper part of the side wall 6, and the end surface of the concrete column 9 facing away from the foundation pit is flush with the side wall 6 on the corresponding side.

[0044] A water supply tank connected to a water spray pipe A18 is provided in the trolley 12, and a water inlet 20 on the top of the water supply tank extends upward from the top plate of the trolley 12. The top of the water inlet 12 is a bucket-shaped structure. The water inlet 12 is close to one of the vertices on the top surface of the trolley 12. When the bridge 11 and the trolley 12 move to make the water inlet 20 closest to the connection between the two adjacent side walls 6, the water inlet 20 is just below the water outlet of the upper water pipe 19. The upper water pipe 19 is fitted and fixed to the side wall 6. A solenoid valve is provided on the upper water pipe 19 corresponding to the pit mouth position of the coal storage pit 5, and the water supply tank is connected to the water spray pipe A18 through a water pump.

[0045] The top edges of the side walls of the strip platform 3 facing the coal storage pit 5 are respectively provided with slopes B21, which extend upwardly in a direction away from the corresponding coal storage pit 5 to the top surface of the strip platform 3, and the bottom edges of the slopes B21 are flush with the top surface of the loading and unloading boss 14.

[0046] A limiting convex strip 22 is provided on the edge of the top surface of the loading and unloading boss 14 away from the strip platform 3 , and the top of the limiting convex strip 22 is flush with the top surface of the strip platform 3 .

[0047] When the rear wheels of the coal truck are in limiting contact with the limiting convex strip 22 , the front wheels of the coal truck are still located on the top surface of the strip platform 3 .

[0048] A material spreading plate 23 is swingably connected to the top edge of the end surface of the loading and unloading boss 14 facing away from the strip table 3 , and the material spreading plate 23 is swingably connected to the loading and unloading boss 14 via a hydraulic piston 24 .

[0049] When the piston rod of the hydraulic piston 24 retracts the piston cylinder to the maximum stroke, the spreading plate 23 fits against the end face of the loading and unloading boss 14 facing away from the strip table 3. When the piston rod of the hydraulic piston 24 extends out of the piston cylinder to the maximum stroke, the angle between the spreading plate 23 and the end face of the loading and unloading boss 24 facing away from the strip table 3 is 60 degrees.

[0050] The concrete columns 9 are symmetrically arranged on both sides of the strip platform 3 .

[0051] The edges on both sides of the door opening 8 are flush with the two side walls of the strip platform 3 facing the coal storage pit 5 .

[0052] The door opening 8 is located between two adjacent concrete columns 9 in the width direction of the foundation pit, and the two side edges of the door opening 8 are flush with the facing side walls of the two adjacent concrete columns 9 respectively.

[0053] The bottom steel plate 15 and the pit bottom surface of the coal storage pit 5 are fixed together, and the side steel plates 16 and the corresponding pit wall surfaces of the coal storage pit 5 are fixed together by means of a glue layer.

[0054] The bottom steel plate 15 is provided with an inspection hole at a position corresponding to the vibrator 17, and a sealing plate is detachably fixed at the inspection hole. The bottom surface of the coal storage pit 5 is provided with a vibrator placement groove corresponding to the vibrator 17, and the vibrator 17 is fixed in the vibrator placement groove.

[0055] The water spray pipe B25 is a coiled pipe arranged on the slope A, and the water spray ports B of the water spray pipe B25 are evenly distributed on the side wall of the coil facing away from the slope A along the extension direction of the coil, and the water mist sprayed from the water spray ports B covers the range of the corresponding coal storage pit 5.

[0056] The water spray ports A of the water spray pipe A18 are evenly distributed at the bottom of the water spray pipe A18 along the extension direction of the water spray pipe A18, and the water mist sprayed from the water spray ports A is an annular structure surrounding the digging claws.

[0057] One of the door openings 8 is an entrance door opening, and the other door opening 8 is an exit door opening. The coal truck on the strip platform 3 drives from the entrance door opening to the exit door opening.

[0058] The digging claw is provided with a hydraulic piston B, and the hydraulic piston B drives the digging claw to open or close.

[0059] The equipment involved in the coal yard of the present application is all operated through remote control, or directly realizes automated operation through the control system.

[0060] Before the present application is used, the water inlet 20 on the top surface of the trolley 12 is moved to a position just below the water outlet of the upper water pipe 19 by means of the bridge 11 moving along the track A26 and the trolley 12 moving along the track B28. Then the solenoid valve is opened and the upper water pipe 19 supplies water to the water supply tank in the trolley 12 through the water inlet 20. When the liquid level in the water supply tank reaches the upper limit liquid level sensor in the water supply tank, the solenoid valve is closed. When the coal truck loaded with coal enters the coal yard from the entrance door, it drives along the strip platform 3 to the coal storage pit 5 storing the corresponding type of coal. After the coal truck drives to the corresponding coal storage pit 5, it reverses and enters the loading and unloading boss 14 of the coal storage pit 5, and stops when the rear wheels of the coal truck contact the limiting convex strip 22, and then the hydraulic piston 24 drives the spreading plate 23 to swing up and down, and the angle between the spreading plate 23 and the corresponding side wall of the loading and unloading boss 14 swings back and forth within the range of 30 to 60 degrees; in addition, the water spray pipe B25 sprays water mist into the coal storage pit 5, and then the coal truck parked on the loading and unloading boss 14 unloads the carried coal, and the unloaded coal falls on the spreading plate 23, and the swing of the spreading plate 23 allows the coal unloaded by the coal truck to be scattered to a farther position in the coal storage pit 5; through the action of the water spray pipe B25, the coal powder generated in the process of spreading the coal can be quickly settled. When the coal in the coal truck is completely unloaded, the hydraulic piston 24 drives the spreading plate 23 to swing downward to fit the corresponding side wall of the loading and unloading boss 14. In addition, the vibrator 17 at the bottom of the coal storage pit 5 is started, and the gaps between the coal in the coal storage pit 5 are made smaller through vibration, and the air between the coal is exhausted as much as possible, so that the coal is stored more evenly and tightly in the coal storage pit 5, thereby improving the coal storage efficiency of the coal storage pit 5 and avoiding the spontaneous combustion of coal as much as possible. When the surface of the coal stored in the coal storage pit 5 is flattened by the vibration, the vibrator 17 is turned off, and the water spray pipe B25 also stops spraying water mist.

[0061] When the coal truck loaded with coal completes unloading and drives out of the corresponding loading and unloading boss 14 or the empty coal truck drives into the coal yard, the coal truck drives to the position of the coal storage pit 5 corresponding to the coal to be loaded and transported, reverses into the loading and unloading boss 14 of the coal storage pit 5, and stops when the rear wheels of the coal truck contact the limiting convex strip 22, and then the digging claw 13 moves to the top of the corresponding position of the coal storage pit 5 under the movement of the bridge frame 11 and the trolley 12, and then the water spray pipe A18 sprays water mist downward, and the digging claw 13 moves downward into the coal storage pit 5 to dig up the coal in the coal storage pit 5, and then the digging claw 13 moves upward to be higher than the coal truck, and then the trolley 12 and the bridge frame 11 drive the digging claw 13 to transport the dug coal to the top of the coal truck, and then the digging claw 13 drops the coal into the coal truck. When the coal truck is fully loaded with coal, the water spray pipe A16 stops spraying water, and the vibrator 17 at the bottom of the coal storage pit 5 is started, and the water spray pipe B25 of the corresponding loading and unloading boss 14 starts spraying water mist. Through the vibration, the gaps between the coal in the coal storage pit 5 are made smaller, and the air between the coal is exhausted as much as possible, so that the coal is stored more evenly and tightly in the coal storage pit 5, thereby improving the coal storage efficiency of the coal storage pit 5 and avoiding the spontaneous combustion of coal as much as possible. When the surface of the coal stored in the coal storage pit 5 is flattened by the vibration, the vibrator 17 is turned off, and the water spray pipe B25 also stops spraying water mist; in addition, the coal truck can drive out of the corresponding loading and unloading platform 14 and leave the coal yard through the exit door.

[0062] When the liquid level in the water supply tank in the trolley 12 is lower than the lower limit liquid level sensor in the water supply tank, the water inlet 20 on the top surface of the trolley 12 is moved to a position just below the water outlet of the upper water pipe 19 by the bridge 11 moving along the track A26 and the trolley 12 moving along the track B28, and then water is supplied to the water supply tank through the upper water pipe 19.

[0063] The remote control of the present application can be controlled by the staff at the coal yard through a remote control device; or cameras can be provided on the upper part of the four corners of the coal yard, on the side wall 6 corresponding to the top of each coal storage pit 5, and on the bottom of the trolley 12, and then the staff can control the operation through the pictures taken by each camera in the coal yard monitoring room.

Claims

1. A coal yard structure for a remotely controlled bridge crane, characterized in that: The invention comprises a rectangular foundation pit dug on the ground, wherein a concrete bottom plate (1) is fixedly provided at the bottom of the foundation pit, a concrete wall plate (2) fixedly connected to the concrete bottom plate (1) is fixedly provided on the wall of the foundation pit, a strip platform (3) arranged along the length direction is fixedly provided at the center line of the length direction of the top surface of the concrete bottom plate (1), the two ends of the strip platform (3) extend to be fixedly connected to the concrete wall plate (2) in the width direction of the foundation pit, a plurality of partition wall plates (4) are evenly distributed along the length direction between the strip platform (3) and the concrete wall plate (2) in the length direction of the foundation pit, the partition wall plates (4) divide the foundation pit on both sides of the strip platform (3) into a plurality of coal storage pits (5), and the bottom surface of the coal storage pit (5) is The surface and the pit wall surface are covered with mutually fixed bottom steel plates (15) and side steel plates (16); a vibrator (17) is fixedly provided at the center of the pit bottom of the coal storage pit (5) and below the bottom steel plate (15) and in vibration contact with the bottom steel plate (15); the top surface of the concrete wall plate (2) is fixedly provided with side walls (6) facing upward; the foundation pit is located within the range surrounded by the side walls (6); the top fixed cover of the side walls (6) is provided with a top cover (7); the bottom of the side walls (6) in the width direction of the foundation pit and at the positions corresponding to the strip platform (3) are respectively provided with door openings (8); the upper part between the side walls (6) in the length direction of the foundation pit is cross-spanned with a bridge frame (11) that reciprocates horizontally along the length direction of the foundation pit; the bridge frame (11) is connected to the foundation pit The bridge (11) is parallel to the width direction thereof, and a trolley (12) is provided on the bridge (11) and moves back and forth horizontally along the bridge (11). A digging claw (13) that moves up and down is provided at the bottom of the trolley (12). A water spray pipe A (18) that sprays water downward is also provided at the bottom of the trolley (12) along the edge. A loading and unloading boss (14) is provided at the middle of the top surface of the side wall of the strip platform (3) facing the coal storage pit (5). The bottom surface of the loading and unloading boss (14) is a slope surface A that is inclined upward in a direction away from the strip platform (3). A water spray pipe B (25) that sprays water toward the coal storage pit (5) is provided on the slope surface A. The water spray port A of the water spray pipe A (18) and the water spray port B of the water spray pipe B (25) are both provided with an atomizing device. A water supply tank connected to a water spray pipe A (18) is provided in the trolley (12). A water inlet (20) on the top of the water supply tank extends upward from the top plate of the trolley (12). The top of the water inlet (12) is a bucket-shaped structure. The water inlet (12) is close to one of the vertices on the top surface of the trolley (12). When the bridge frame (11) and the trolley (12) are moved to a position where the water inlet (20) is closest to the connection between two adjacent side walls (6), the water inlet (20) is located just below the water outlet of the upper water pipe (19). The upper water pipe (19) is fitted and fixed to the side wall (6). A solenoid valve is provided on the upper water pipe (19) at a position corresponding to the pit mouth of the coal storage pit (5). The water supply tank is connected to the water spray pipe A (18) via a water pump.

2. The coal yard structure of the remote-controlled bridge crane according to claim 1, characterized in that: The concrete bottom plate (1) has a plurality of concrete columns (9) evenly fixed along the pit wall edge at positions corresponding to the pit wall edge of the foundation pit, and the concrete columns (9) are embedded and fixed in the concrete wall plate (2).

3. The coal yard structure of the remote-controlled bridge crane according to claim 2, characterized in that: Horizontal beams (10) are fixed at the top of the concrete columns (9) corresponding to the side walls (6) in the length direction of the foundation pit and along the side walls (6). The two ends of the horizontal beams (10) extend along the length direction of the foundation pit to be connected and fixed to the side walls (6) in the width direction of the foundation pit. The bottoms of the two ends of the bridge frame (11) are respectively provided with driving rollers A that reciprocate along a track A (26) provided at the top of the horizontal beam (10). The top of the horizontal beam (10) is respectively provided with limit blocks A (27) at the two ends of the track A (26). When the bridge frame (11) contacts the limit blocks A (27), the bridge frame (11), the trolley (12) connected to the bridge frame (11), and the digging claws (13) and the water spray pipes A (18) below the trolley (12) are located exactly at the position of the concrete wall plate (2) in the width direction of the foundation pit on the side where the limit blocks A (27) are located.

4. The coal yard structure of the remote-controlled bridge crane according to claim 2, characterized in that: A track B (28) is provided on the top of the bridge frame (11) in parallel with the extension direction of the bridge frame (11); the trolley (12) is provided with a driving roller B which reciprocates along the track B (28); and limit blocks B (29) are provided at both ends of the top of the bridge frame (11). When the trolley (12) contacts the limit blocks B (29), the trolley (12) and the digging claw (13) and the water spray pipe A (18) below the trolley (12) are located at the position of the concrete wall plate (2) in the length direction of the foundation pit on the side where the limit blocks B (29) are located.

5. The coal yard structure of the remote-controlled bridge crane according to claim 2, characterized in that: The top end of the concrete column (9) extends upward to the upper part of the side wall (6), and the end surface of the concrete column (9) facing away from the foundation pit is flush and fixed with the side wall (6) on the corresponding side.

6. The coal yard structure of the remote-controlled bridge crane according to claim 1, characterized in that: The top edges of the side walls of the strip platform (3) facing the coal storage pit (5) are respectively provided with slopes B (21), the slopes extending upwardly in a direction away from the corresponding coal storage pit (5) to the top surface of the strip platform (3), and the bottom edges of the slopes B (21) are flush with the top surface of the loading and unloading boss (14).

7. The coal yard structure of the remote-controlled bridge crane according to claim 6, characterized in that: A limiting convex strip (22) is provided on the edge of the top surface of the loading and unloading boss (14) away from the strip platform (3), and the top of the limiting convex strip (22) is flush with the top surface of the strip platform (3).

8. The coal yard structure of the remote-controlled bridge crane according to claim 7, characterized in that: When the rear wheels of the coal truck are in limiting contact with the limiting convex strip (22), the front wheels of the coal truck are still located on the top surface of the strip platform (3).

9. The coal yard structure of the remote-controlled bridge crane according to claim 1, characterized in that: A material spreading plate (23) is swingably connected to the top edge of the end surface of the loading and unloading boss (14) on one side facing away from the strip platform (3), and the material spreading plate (23) is swingably connected to the loading and unloading boss (14) via a hydraulic piston (24).

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