A reciprocating coal shed spraying device

Abstract

This invention discloses a reciprocating coal shed spraying device, relating to the field of coal shed renovation technology. The reciprocating coal shed spraying device includes a portal frame with a canopy at the top and a coal storage area below the canopy. A track beam is installed at the bottom of the portal frame's top beam, and a guide rail is mounted on the track beam. A reciprocating spraying device is mounted on the guide rail. The spraying device includes a structural frame with wheels adapted to the guide rail at the bottom. Connecting frames are installed at both ends of the structural frame, with the ends of the connecting frames rotatably connected to the ends of the spray pipe. Spray holes are provided at the lower part of the spray pipe, and a swing arm is connected to the upper part of the spray pipe. Stop bars are provided at both ends of the portal frame for stopping and pushing the swing arm. The guide rail and wheels enable the spraying device to move linearly, while the stops and the swing arm are used to change the spraying direction, adapting to rectangular coal shed storage areas. This ensures more uniform water distribution to the coal in each area and avoids blind spots.

Description

Technical Field

[0001] This invention relates to the field of coal shed renovation technology, specifically to a reciprocating coal shed spraying device. Background Technology

[0002] The operation of the hot blast stove requires a large amount of raw coal. To ensure a normal coal supply and the safe and stable operation of the equipment, the coal inventory needs to be sufficient for at least one week's use, approximately several hundred tons. Dust pollution is easily generated when coal is piled up, and the bottom layer of coal dust, due to its excessively high temperature, also poses a risk of spontaneous combustion. Furthermore, to ensure complete combustion, the coal needs to contain a certain amount of moisture to ensure it burns properly at the high-temperature location in the hot blast stove.

[0003] Therefore, when raw coal is stored in a coal shed, it is sprayed with water regularly. Traditional coal sheds have nozzles installed in a ring on the top, and the sprayed area is a circular surface. Since the coal shed is a typical rectangular area, a single nozzle cannot spray to the corners, and multiple nozzles will overlap, causing some areas of coal dust to have excessive moisture, which is not conducive to combustion. At the same time, the excess sprayed area will also wet the ground outside the coal shed, which is not good for the area's hygiene. Summary of the Invention

[0004] The purpose of this invention is to provide a reciprocating coal shed spraying device to solve the problems of spraying dead zones and uneven spraying in existing spraying methods.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a reciprocating coal shed spraying device, characterized in that: it includes a portal frame, a canopy is provided at the top of the portal frame, a coal storage area is provided below the canopy, a track beam is provided at the bottom of the top beam of the portal frame, a guide rail is provided on the track beam, and a spraying device that can move back and forth is provided on the guide rail; the spraying device includes a structural frame, a traveling wheel adapted to the guide rail is provided at the bottom of the structural frame, a connecting frame is provided at both ends of the structural frame, the ends of the connecting frame are rotatably connected to both ends of the spraying pipe, a spraying hole is provided at the lower part of the spraying pipe, a swing rod is connected to the upper part of the spraying pipe, and a stop bar is provided at both ends of the portal frame, the stop bar is used to stop and push the swing rod.

[0006] A further technical solution is that the spray hole is located on one side of the lower part of the spray pipe, and the side of the spray pipe away from the spray hole is connected to the swing rod. Multiple swing rods are arranged along the length of the structural frame, and their free ends are connected by connecting crossbars.

[0007] A further technical solution is that the structural frame is also provided with abutment devices on both sides. The abutment devices are provided with abutment positions for abutting against the connecting crossbar. The abutment devices are provided with sliding chambers and water chambers. The sliding chambers are provided with sliding blocks and pistons. A magnet is provided on the side of the sliding block facing the abutment position. A second spring is provided between the sliding block and the piston. The sliding chambers and water chambers are respectively located on both sides of the piston. The water chambers are connected to the spray pipe. The connecting crossbars are made of magnetic material.

[0008] A further technical solution is that the sliding block has an outwardly extending end ear structure at both ends, and a guide post is also provided. The end ear structure is slidably sleeved with the guide post, and a first spring is sleeved on the outside of the guide post, with the end of the first spring abutting against the end ear structure.

[0009] A further technical solution is that the end of the block device is provided with a baffle, the guide post is threadedly connected to the baffle, the guide post is provided with a shoulder structure, and the two ends of the first spring respectively abut against the shoulder structure of the guide post and the end ear structure of the sliding block.

[0010] A further technical solution is that guide sleeves are provided on both sides of the portal frame, the stop rod is slidably sleeved with the guide sleeve, and a third spring is provided between the stop rod and the guide sleeve.

[0011] A further technical solution is that a retaining wall is provided outside the coal storage area, and an annular ditch is provided outside the retaining wall. The bottom of the coal storage area is connected to the annular ditch. Multiple flat spray nozzles are arranged in a ring on the gantry frame, and the spray nozzles are located above the annular ditch.

[0012] A further technical solution is that the annular trench is provided with a second filter screen, a second sand and gravel layer, a second support net, a liquid storage space, a first filter screen, a first sand and gravel layer, and a first support net in sequence from top to bottom along its depth direction. The liquid storage space is provided with a liquid extraction port at the bottom, and the liquid extraction port is connected to the spray pipe through a pump.

[0013] Working principle: Pressurized water enters the spray pipe and is sprayed out from the spray holes to form a water curtain. The water curtain is sprayed on the surface of the raw coal pile. Water sprayed from the spray holes on one side of the spray pipe pushes the traveling wheels of the reverse structure frame to slide along the guide rail. When the spraying device slides to the end of the track beam, the stop bar contacts the end of the swing arm, blocking the swing arm and pushing it, causing the spray pipe to rotate in one direction, thus changing the spraying direction. The sprayed water pushes the spraying device to slide in the opposite direction, allowing the spraying device to make reciprocating linear motion. This is perfectly suited to the rectangular coal shed storage area, making the amount of water sprayed on the coal in each area more uniform and avoiding dead zones that cannot be sprayed.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The spraying device moves in a straight line via guide rails and wheels, and the spraying direction can be changed by stopping the stop bar and pushing the swing arm. It is suitable for rectangular coal storage areas, so that the amount of water sprayed on the coal in each area is more uniform and dead corners that cannot be sprayed are avoided.

[0016] 2. By setting the spray holes on one side of the spray pipe, the spraying device is driven by the reverse thrust of water to achieve reciprocating motion, avoiding motor drive, reducing explosion-proof requirements, saving costs and improving the safety factor.

[0017] 3. By using a water chamber, piston, and spring, the spring force and water pressure are balanced, and the attraction between the magnet and the connecting crossbar is adjusted; the magnet attracts the connecting crossbar, making the water spray direction more stable. Attached Figure Description

[0018] Figure 1 This is a front structural diagram of the present invention.

[0019] Figure 2 This is a top view of the present invention.

[0020] Figure 3 This is a schematic diagram of the assembly of the spraying device of the present invention. Figure 1 .

[0021] Figure 4 This is a side view of the spraying device of the present invention.

[0022] Figure 5 This is a schematic diagram of the spraying device of the present invention.

[0023] Figure 6 This is a schematic diagram of the assembly of the spraying device of the present invention. Figure 2 .

[0024] Figure 7 This is a schematic diagram of the internal structure of the support block device of the present invention. Figure 1 .

[0025] Figure 8 This is a schematic diagram of the internal structure of the support block device of the present invention. Figure 2 .

[0026] Figure 9 This is a schematic diagram of the annular groove structure of the present invention.

[0027] In the diagram: gantry frame 1; canopy 101; track beam 102; nozzle 103; guide rail 104; traveling wheel 105; guide sleeve 106; annular ditch 2; first filter screen 201; first sand and gravel layer 202; liquid storage space 203; first support net 204; liquid extraction port 205; second filter screen 206; second sand and gravel layer 207; second support net 208; spraying device 3; structural frame 301; connecting frame 302; spray pipe 303; spray hole 304; swing rod 305; connecting crossbar 306; connecting pipe 307; retaining wall 4; backing block device 5; sliding block 501; magnet 502; piston 503; abutment position 504; guide column 505; first spring 506; second spring 507; water cavity 508; baffle 509; stop bar 6; third spring 601. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] Figure 1 , 2 The diagram illustrates a reciprocating coal shed spraying device, comprising a portal frame 1, a canopy 101 at the top of the portal frame 1, a coal storage area below the canopy 101, a track beam 102 at the bottom of the top beam of the portal frame 1, a guide rail 104 on the track beam 102, and a reciprocating spraying device 3 on the guide rail 104. The coal storage area is rectangular, and the spraying device 3 sprays a water curtain that scans downwards onto the coal pile, avoiding any blind spots.

[0030] like Figure 3-6 As shown, the spraying device 3 includes a structural frame 301. The bottom of the structural frame 301 is provided with a traveling wheel 105 adapted to the guide rail 104. The two ends of the structural frame 301 are provided with connecting frames 302. The connecting frames 302 are composed of inclined rods that are relatively inclined. The bottom of the inclined rods is provided with a through hole, which is rotatably connected to the end of the spraying pipe 303. The lower part of the spraying pipe 303 is provided with a spraying hole 304. The upper part of the spraying pipe 303 is connected with a swing rod 305. The two ends of the gantry frame 1 are provided with stop rods 6, which are used to stop and push the swing rod 305.

[0031] To fully utilize the thrust force during water spraying, the spray hole 304 is located on one side of the lower part of the spray pipe 303. The side of the spray pipe 303 away from the spray hole 304 is connected to the swing rod 305. Multiple swing rods 305 are provided along the length of the structural frame 301, and their free ends are connected by connecting crossbars 306.

[0032] The baffles 6 are positioned opposite each other, with one of them aligned with the end of the swing arm 305. The spray nozzle 304 sprays water, generating a recoil force that propels the spraying device 3 to move as a whole and spray water onto the coal pile. When the spraying device 3 moves to near the end in one direction, the swing arm 305 begins to approach the baffle 6 and is stopped by the baffle 6. As the spraying device 3 continues to move forward, the swing arm 305 is pushed and swings, adjusting the spray direction of the spray nozzle 304. Since multiple swing arms 305 are connected as one unit by a connecting crossbar 306, all the spray pipes 303 simultaneously rotate and adjust the spray direction of the spray nozzle 304.

[0033] When the connecting crossbar 306 swings to the other side of the structural frame 301, the spraying direction of the spraying hole 304 is already facing the other side, pushing the spraying device 3 back. The other end of the gantry frame 1 is also equipped with a stop bar 6, which can adjust the spraying direction of the spraying hole 304 in the same way, so that the spraying device 3 swings back and forth under the action of water pressure.

[0034] The main structural components of the spraying device 3 are made of lightweight materials such as thin-walled steel, aluminum, nylon, and polyurethane, which reduces the overall weight of the spraying device 3.

[0035] To make the spraying direction more stable, the structural frame 301 is also equipped with abutment block devices 5 on both sides, such as... Figure 7 , 8 As shown, the abutment device 5 is provided with an abutment position 504, which is used to abut against the connecting crossbar 306. The abutment device 5 is provided with a sliding cavity and a water cavity 508. The sliding cavity is provided with a sliding block 501 and a piston 503. A magnet 502 is provided on the side of the sliding block 501 facing the abutment position 504. A second spring 507 is provided between the sliding block 501 and the piston 503. The sliding cavity and the water cavity 508 are respectively provided on both sides of the piston 503. The water cavity 508 is connected to the spray pipe 303. The connecting crossbar 306 is made of magnetic material. If there are multiple abutment devices 5 on one side, they can be connected in series using a connecting pipe 307. The main water pipe is connected to the connecting pipe 307 and then to the spray pipe 303 at the very end. Since the water supply passes through the water chamber 508, the water pressure pushes the piston 503. The piston 503 transmits the thrust to the sliding block 501 through the second spring 507. The other side of the sliding block 501 is held in place by the first spring 506. Therefore, the sliding block 501 is in a pressure balance between the spring force and the water pressure. Due to the magnet 502, the connecting crossbar 306 is attracted, making the direction of water spraying from the spray hole 304 more stable.

[0036] The sliding block 501 has an outwardly extending end ear structure at both ends and a guide post 505. The end ear structure is slidably sleeved with the guide post 505. A first spring 506 is sleeved on the outside of the guide post 505, and the end of the first spring 506 abuts against the end ear structure.

[0037] The end of the abutment device 5 is provided with a baffle 509, and the guide post 505 is threadedly connected to the baffle 509. The guide post 505 has a shoulder structure, and the two ends of the first spring 506 respectively abut against the shoulder structure of the guide post 505 and the end lug structure of the sliding block 501. The end of the guide post 505 is square-headed to facilitate tightening with a wrench, and the depth of the shoulder structure can be adjusted to adjust the initial holding force of the first spring 506, which is convenient for adjusting the initial position of the magnet 502 during installation.

[0038] When the water pressure is high, the recoil force from the spray nozzle 304 is greater, the spraying device 3 moves faster, has more kinetic energy, and the magnet 502 is closer to the connecting crossbar 306, resulting in stronger attraction. When the stop lever 6 collides with the swing arm 305, more force is needed to push the connecting crossbar 306 out of the abutment position 504, effectively using the kinetic energy of the spraying device 3 for deceleration. When the water pressure is low, the recoil force is small, the spraying device 3 moves slower, and the piston 503 moves back, the sliding block 501 moves back as well, the magnet 502 is farther from the connecting crossbar 306, the attraction force is weaker, and the force required to unlock is correspondingly reduced, preventing the connecting crossbar 306 from being unable to be pushed out. By adjusting the water pressure, the swing arm can be smoothly steered.

[0039] To reduce impact damage to the stop bar, guide sleeves 106 are provided on both sides of the gantry frame 1. The stop bar 6 is slidably sleeved with the guide sleeves 106, and a third spring 601 is provided between the stop bar 6 and the guide sleeves 106. The third spring 601 buffers the impact force of the spraying device 3 on the stop bar 6.

[0040] To facilitate the storage of raw coal, a retaining wall 4 is provided outside the coal storage area, and an annular ditch 2 is provided outside the retaining wall 4. The bottom of the coal storage area is connected to the annular ditch 2. Multiple flat spray nozzles 103 are arranged in a ring on the portal frame 1, and the spray nozzles 103 are positioned above the annular ditch 2. When the coal pile is relatively dry, the coal dust splashed up by the initial water spray will be blocked by the annular water curtain sprayed by the spray nozzles 103, and will flow into the annular ditch 2 along the outside of the retaining wall 4 with the water flow.

[0041] To facilitate the recycling of coal and molten coal, such as Figure 9 As shown, the annular ditch 2 is provided with a second filter screen 206, a second sand and gravel layer 207, a second support net 208, a liquid storage space 203, a first filter screen 201, a first sand and gravel layer 202, and a first support net 204 in sequence from top to bottom along its depth direction. The liquid storage space 203 is provided with a liquid extraction port 205 at the bottom, and the liquid extraction port 205 is connected to the spray pipe 303 through a pump.

[0042] When molten coal flows into the annular ditch 2, the second filter screen 206 and the second sand and gravel layer 207 block large stones and debris, preventing them from entering the ditch and causing blockages. The preliminarily filtered molten coal enters the liquid storage space 203 and is pumped out through the extraction port 205. After clarification and separation, the water is sent to the spray pipe 303 for recycling, while the coal is recovered to reduce waste. The first filter screen 201 has relatively fine filter holes, reducing the amount of molten coal flowing into the soil layer.

[0043] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. A reciprocating coal shed sprinkler system, characterized in that: The system includes a portal frame (1), a canopy (101) on top of the portal frame (1), a coal storage area below the canopy (101), a track beam (102) at the bottom of the top beam of the portal frame (1), a guide rail (104) on the track beam (102), and a reciprocating spraying device (3) on the guide rail (104); the spraying device (3) includes a structural frame (301), a traveling wheel (105) adapted to the guide rail (104) at the bottom of the structural frame (301), a connecting frame (302) at both ends of the structural frame (301), the ends of the connecting frame (302) being rotatably connected to both ends of the spraying pipe (303), a spraying hole (304) at the bottom of the spraying pipe (303), a swing rod (305) connected to the top of the spraying pipe (303), and a stop bar (6) at both ends of the portal frame (1), the stop bar (6) being used to stop and push the swing rod (305). The spray hole (304) is located on one side of the lower part of the spray pipe (303). The side of the spray pipe (303) away from the spray hole (304) is connected to the swing rod (305). Multiple swing rods (305) are provided along the length of the structural frame (301) and their free ends are connected by connecting crossbars (306). The structural frame (301) is also provided with abutment devices (5) on both sides. The abutment devices (5) are provided with abutment positions (504) for abutting against the connecting crossbar (306). The abutment devices (5) are provided with a sliding cavity and a water cavity (508). The sliding cavity is provided with a sliding block (501) and a piston (503). A magnet (502) is provided on the side of the sliding block (501) facing the abutment position (504). A second spring (507) is provided between the sliding block (501) and the piston (503). The sliding cavity and the water cavity (508) are respectively provided on both sides of the piston (503). The water cavity (508) is connected to the spray pipe (303). The connecting crossbar (306) is made of magnetic material.

2. The reciprocating coal shed sprinkler device according to claim 1, characterized in that: The sliding block (501) has an extended end ear structure at both ends and a guide post (505). The end ear structure is slidably connected to the guide post (505). A first spring (506) is sleeved on the outside of the guide post (505). The end of the first spring (506) abuts against the end ear structure.

3. The reciprocating coal shed sprinkler device according to claim 2, characterized in that: The end of the abutment device (5) is provided with a baffle (509), the guide post (505) is threadedly connected to the baffle (509), the guide post (505) is provided with a shoulder structure, and the two ends of the first spring (506) abut against the shoulder structure of the guide post (505) and the end ear structure of the sliding block (501) respectively.

4. The reciprocating coal shed spraying device according to claim 1, characterized in that: The portal frame (1) is provided with guide sleeves (106) on both sides, the stop rod (6) is slidably sleeved with the guide sleeve (106), and a third spring (601) is provided between the stop rod (6) and the guide sleeve (106).

5. A reciprocating coal shed spraying device according to claim 1, characterized in that: A retaining wall (4) is provided on the outside of the coal storage area, and an annular ditch (2) is provided on the outside of the retaining wall (4). The bottom of the coal storage area is connected to the annular ditch (2). Multiple flat nozzles (103) are arranged in a ring on the gantry frame (1), and the nozzles (103) are located above the annular ditch (2).

6. A reciprocating coal shed spraying device according to claim 5, characterized in that: The annular ditch (2) is provided with a second filter screen (206), a second sand and gravel layer (207), a second support net (208), a liquid storage space (203), a first filter screen (201), a first sand and gravel layer (202), and a first support net (204) in sequence from top to bottom along its depth direction. The liquid storage space (203) is provided with a liquid extraction port (205) at the bottom, and the liquid extraction port (205) is connected to the spray pipe (303) through a pump.

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