Dry spraying device for repairing a fire channel

Abstract

The utility model relates to a kind of dry spray devices for repairing vertical flue, including conveying horizontal pipe and dry spray vertical pipe, conveying horizontal pipe one end top side is equipped with barrel, end portion is fixedly connected with air inlet pipe, barrel bottom is fixedly connected with discharge pipe, discharge pipe is communicated with conveying horizontal pipe, conveying horizontal pipe other end top and bottom two sides are fixedly connected with L-shaped support plate, and end portion is fixedly connected with fixed plate, the vertical portion of support plate is rotatably connected with screw rod in the end inside of its horizontal portion, screw rod is threadedly connected with moving plate, the top of moving plate is slidably connected with the horizontal portion of support plate, the side of moving plate close to conveying horizontal pipe is equipped with L-shaped limit plate, the lower portion of moving plate is rotatably connected with the end of the vertical portion of limit plate away from its horizontal portion, first through slot is set in the upper and lower sides of fixed plate, dry spray vertical pipe top end is fixedly connected with L-shaped elbow, bottom end is fixedly connected with spray head, elbow tail end is fixedly connected with mounting plate, second through slot is set in the upper and lower sides of mounting plate.The utility model can improve operation safety and use convenience, more practical.

Description

Technical Field

[0001] This utility model belongs to the field of spray repair technology, specifically relating to a dry spray device for repairing vertical fire ducts. Background Technology

[0002] The vertical flue is the "heating channel" of the coking furnace, providing the carbonization chamber with temperatures exceeding 1000℃ through the combustion of coal gas. The integrity of its inner refractory layer directly determines the heating efficiency and the temperature stability of the carbonization chamber. Damage can lead to localized overheating or insufficient temperature, affecting coke quality. The vertical flue is subjected to the dual effects of high-temperature circulation (heating-heating-cooling) and corrosion from coal gas combustion, making the inner refractory material prone to crumbling and spalling. Cracks can also cause gas leaks, posing safety hazards. Therefore, it needs to be repaired regularly (usually every 1-2 months) through dry spraying. However, existing spraying tools are mostly handheld straight-barrel structures, requiring operators to face the high-temperature area directly, resulting in a high rate of burns and poor safety. Furthermore, the nozzle extending into the vertical flue is difficult to disconnect and replace when blocked or damaged, making it inconvenient to use and requiring improvement. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a dry spraying device for repairing vertical fire ducts, which can improve operational safety and ease of use, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dry spraying device for repairing vertical fire ducts, comprising a horizontal conveying pipe and a vertical dry spraying pipe. A material cylinder is fixedly mounted on the top side of one end of the horizontal conveying pipe, and an air inlet pipe is fixedly connected to the end. An outlet pipe is fixedly connected to the bottom of the material cylinder and is connected to the horizontal conveying pipe. L-shaped support plates are fixedly connected to both the top and bottom sides of the other end of the horizontal conveying pipe, and a square fixing plate is fixedly sleeved at the end. A screw rod is rotatably connected to the inner side of the vertical part of the support plate, which faces away from the air inlet pipe. A movable plate is threaded onto the screw rod, and the top of the movable plate is slidably connected to the horizontal part of the support plate. An L-shaped limiting plate is provided on the side of the plate near the conveying horizontal pipe. The vertical part of the limiting plate is rotatably connected to the lower part of the moving plate at the end away from its horizontal part. The upper and lower sides of the fixed plate are provided with first through grooves. The top end of the dry spray vertical pipe is fixedly connected to an L-shaped elbow, and the bottom end is fixedly connected to a nozzle. A square mounting plate is fixedly sleeved on the tail end of the elbow. The upper and lower sides of the mounting plate are provided with second through grooves. The tail end of the elbow is inserted into the end of the fixed plate of the conveying horizontal pipe. The mounting plate abuts against the fixed plate. The horizontal part of the limiting plate is successively inserted into the second through groove and the first through groove on the same side, and the vertical part abuts against the side of the mounting plate. The nozzle faces the side away from the conveying horizontal pipe.

[0005] Preferably, a rotating handle is fixedly connected to the end of the lead screw away from the vertical part of the support plate.

[0006] Preferably, a slider is fixed at the top of the movable plate, and a matching groove is provided on the bottom of the horizontal part of the support plate corresponding to the slider, and the slider is slidably connected in the corresponding groove.

[0007] Preferably, the horizontal portion of the limiting plate is adapted to the corresponding first through groove and second through groove.

[0008] Preferably, the mounting plate is adapted to the fixing plate, and a sealing gasket is fixed on the side of the mounting plate close to the fixing plate.

[0009] Preferably, the top of the material cylinder is fixedly connected to a feed pipe with a feed valve.

[0010] Preferably, both the air inlet pipe and the discharge pipe are equipped with flow regulating valves.

[0011] Preferably, the end of the air intake pipe away from the delivery cross pipe is provided with a quick connector.

[0012] Preferably, a handle is fixedly connected to the bottom side of the conveying horizontal pipe near the air inlet pipe.

[0013] The beneficial effects of this invention are as follows: When dry spraying repair is required, simply connect the air inlet pipe to an existing conventional compressed air source, then extend the dry spray vertical pipe into the vertical fire channel and aim the nozzle at the area to be repaired. Then, open the discharge pipe and air inlet pipe, and use the input compressed air to deliver the repair material discharged from the material cylinder into the conveying horizontal pipe to the nozzle for spraying. During the process, the conveying horizontal pipe keeps operators away from the vertical area where the fire channel is located, preventing them from directly facing the high-temperature area, effectively reducing the occurrence of burns and improving operational safety. If several spray risers become clogged or damaged after prolonged use, in a non-use state, first rotate the screw. Through the sliding connection between the moving plate and the horizontal part of the support plate, and the mutual cooperation of the threaded connection between the moving plate and the screw, the moving plate and the limiting plate will move as a whole away from the conveying horizontal pipe until the horizontal part of the limiting plate is brought out from the corresponding second through groove. Then rotate the limiting plate 180 degrees so that its horizontal part faces upward, which will completely remove the obstruction to the elbow. Then pull the end of the elbow out of the conveying horizontal pipe, and the original dry spray riser can be disassembled. When installing a new dry spray riser, first insert the end of the corresponding elbow into the conveying horizontal pipe until the mounting plate and the fixed plate are aligned and abutting. Then, rotate the limiting plate 180 degrees again so that its horizontal part is aligned with the corresponding second and first through slots. Next, reverse the screw to move the moving plate and the limiting plate together towards the vertical part of the support plate. This allows the horizontal part of the limiting plate to pass through the second and first through slots until the vertical part of the limiting plate presses against the mounting plate. The limiting plate then securely presses and connects the mounting plate and the fixed plate, completing the fixed installation of the entire dry spray riser. The installation is stable and does not affect subsequent use. This method is simple to operate and allows for flexible and convenient disassembly, assembly, and replacement of the entire dry spray riser, making the whole device more convenient and practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the end where the fixing plate of the conveying horizontal tube of this utility model is located; Figure 3 This is a schematic diagram of the left view of the end where the fixing plate of the conveying horizontal tube of this utility model is located; Figure 4 This is a schematic diagram of the main structure of the elbow of this utility model; Figure 5 This is a schematic diagram of the right-side structure of the elbow of this utility model; Figure 6 This is a front view structural diagram of the connection between the elbow and the conveying horizontal pipe of this utility model.

[0015] The following labels are used in the diagram: 1 is the horizontal conveying pipe, 2 is the vertical dry spray pipe, 3 is the material cylinder, 4 is the air inlet pipe, 5 is the discharge pipe, 6 is the support plate, 7 is the fixed plate, 8 is the lead screw, 9 is the moving plate, 10 is the limiting plate, 11 is the first through groove, 12 is the elbow, 13 is the nozzle, 14 is the mounting plate, 15 is the second through groove, 16 is the handle, 17 is the slider, 18 is the slide groove, 19 is the sealing gasket, 20 is the feed valve, 21 is the feed pipe, 22 is the flow regulating valve, 23 is the quick connector, and 24 is the handle. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 6 As shown, a dry spraying device for repairing vertical fire ducts includes a horizontal conveying pipe 1 and a vertical dry spraying pipe 2. A material cylinder 3 is fixedly mounted on the top side of one end of the horizontal conveying pipe 1, and an air inlet pipe 4 is fixedly connected to the end. An outlet pipe 5 is fixedly connected to the bottom of the material cylinder 3 and is connected to the horizontal conveying pipe 1. L-shaped support plates 6 are fixedly connected to both the top and bottom sides of the other end of the horizontal conveying pipe 1, and a square fixing plate 7 is fixedly sleeved at the end. The horizontal part of the support plate 6 faces away from the air inlet pipe 4, and a screw rod 8 is rotatably connected to the inner side of the vertical part near its horizontal part. A movable plate 9 is threaded onto the screw rod 8. The top of the movable plate 9 is slidably connected to the horizontal part of the support plate 6. An L-shaped limiting plate 10 is provided on the side of the movable plate 9 near the horizontal conveying pipe 1. The end of the vertical part of the limiting plate 10 away from its horizontal part is rotatably connected to the lower part of the movable plate 9. First through grooves 11 are provided on both the upper and lower sides of the fixing plate 7. The top end of the dry spray vertical pipe 2 is fixedly connected to an L-shaped elbow 12, and the bottom end is fixedly connected to a nozzle 13. A square mounting plate 14 is fixedly sleeved on the tail end of the elbow 12. The upper and lower sides of the mounting plate 14 are provided with second through grooves 15. The tail end of the elbow 12 is inserted into the end where the fixed plate of the conveying horizontal pipe 1 is located. The mounting plate 14 abuts against the fixed plate 7. The horizontal part of the limiting plate 10 is inserted through the second through groove 15 and the first through groove 11 on the same side, and the vertical part abuts against the side of the mounting plate 14. The nozzle 13 faces the side away from the conveying horizontal pipe 1. When dry spraying repair is required, simply connect the air inlet pipe 4 to the existing conventional compressed air source, then extend the dry spray vertical pipe 2 into the vertical fire channel and aim the nozzle 13 at the area to be repaired. Next, open the discharge pipe 5 and the air inlet pipe 4, and use the input compressed air to deliver the repair material discharged from the material cylinder 3 into the conveying horizontal pipe 1 to the nozzle 13 for spraying. During the process, the conveying horizontal pipe 1 keeps the operator away from the vertical area where the fire channel is located, preventing the operator from directly facing the high-temperature area, effectively reducing the occurrence of burns and improving operational safety. After long-term use, if several spray vertical pipes 2 become blocked or damaged, in the non-use state, first rotate the screw 8. Through the sliding connection between the moving plate 9 and the horizontal part of the support plate 10, and the mutual cooperation of the threaded connection between the moving plate 9 and the screw 8, the moving plate 9 and the limiting plate 10 are moved as a whole away from the conveying horizontal pipe 1 until the horizontal part of the limiting plate 10 is brought out from the corresponding second through groove 15. Then rotate the limiting plate 10 180 degrees so that its horizontal part faces upward, which can completely remove the obstruction to the elbow 12. Then pull the end of the elbow 12 out of the conveying horizontal pipe 1, and the original dry spray vertical pipe 2 can be disassembled. When installing a new dry spray riser 2, first insert the end of its corresponding elbow 12 into the conveying horizontal pipe 1 until the mounting plate 14 aligns and abuts against the fixing plate 7. Then, rotate the limiting plate 10 180 degrees again so that its horizontal part aligns with the corresponding second through groove 15 and first through groove 11. Next, reverse the screw 8 so that the moving plate 9 and the limiting plate 10 move as a whole toward the vertical part of the support plate 6. This allows the horizontal part of the limiting plate 10 to pass through the second through groove 15 and the first through groove 11 until the vertical part of the limiting plate 10 presses against the mounting plate 14. Thus, the limiting plate 10 can be used to firmly press and connect the mounting plate 14 and the fixing plate 7, completing the fixed installation of the entire dry spray riser 2. The installation is stable and does not affect subsequent use. In this way, the operation is simple, and the dry spray riser 2 can be flexibly and conveniently disassembled and replaced, making the whole device more convenient and practical.

[0017] In this embodiment, a handle 16 is fixedly connected to the end of the lead screw 8 away from the vertical part of the support plate 6, so as to facilitate the control of the rotation of the lead screw 8.

[0018] In this embodiment, a slider 17 is fixedly provided at the top of the movable plate 9, and a matching groove 18 is provided on the bottom of the horizontal part of the support plate 6 corresponding to the slider 17. The slider 17 is slidably connected in the corresponding groove 18 to guide and limit the movable plate 9, and the movable plate 9 can be moved by screw connection.

[0019] In this embodiment, the horizontal portion of the limiting plate 10 is adapted to the corresponding first through groove 11 and second through groove 15 to ensure that the horizontal portion of the limiting plate 10 can be smoothly inserted into place, thereby cooperating to realize the insertion, limiting and fixing installation of the mounting plate 14 and the fixing plate 7.

[0020] In this embodiment, the mounting plate 14 is adapted to the fixing plate 7, and a sealing gasket 19 is fixed on the side of the mounting plate 14 near the fixing plate 7 to ensure the sealing of the contact point, prevent material leakage, and ensure the smooth progress of dry spray repair work.

[0021] In this embodiment, the top of the material cylinder 3 is fixedly connected to a feed pipe 21 with a feed valve 20, which is used to replenish the material required for repair into the material cylinder 3.

[0022] In this embodiment, both the air inlet pipe 4 and the discharge pipe 5 are equipped with flow regulating valves 22, so as to control the spraying speed by regulating the feed flow rate and the air intake flow rate, thereby ensuring the quality of dry spray repair.

[0023] In this embodiment, a quick connector 23 is provided at the end of the intake pipe 4 away from the delivery horizontal pipe 1, so as to facilitate quick connection and disconnection between the intake pipe 4 and the existing conventional compressed air source before and after repair, which is convenient to use. The quick connector 23 can be made using existing technology.

[0024] In this embodiment, a handle 24 is fixedly connected to the bottom side of the end of the conveying horizontal pipe 1 near the air inlet pipe 4, which facilitates the handheld device for repair work.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dry spraying device for repairing vertical fire ducts, characterized in that, The system includes a horizontal conveying pipe and a vertical dry spraying pipe. A material cylinder is fixedly mounted on the top side of one end of the horizontal conveying pipe, and an air inlet pipe is fixedly connected to the end of the horizontal conveying pipe. An outlet pipe is fixedly connected to the bottom of the material cylinder and is connected to the horizontal conveying pipe. L-shaped support plates are fixedly connected to both the top and bottom sides of the other end of the horizontal conveying pipe, and a square fixing plate is fixedly sleeved at the end of the support plate. A lead screw is rotatably connected to the horizontal portion of the support plate facing away from the air inlet pipe, and a movable plate is threaded onto the inner side of the vertical portion near its horizontal portion. The top of the movable plate is slidably connected to the horizontal portion of the support plate. An L-shaped limiting plate is provided on the side of the movable plate near the horizontal conveying pipe. The vertical portion of the limiting plate is rotatably connected to the lower part of the moving plate at one end away from its horizontal portion. The fixed plate has first through slots on both its upper and lower sides. The top end of the dry spray vertical pipe is fixedly connected to an L-shaped elbow, and the bottom end is fixedly connected to a nozzle. A square mounting plate is fixedly sleeved on the tail end of the elbow. The mounting plate has second through slots on both its upper and lower sides. The tail end of the elbow is inserted into the end of the fixed plate of the conveying horizontal pipe. The mounting plate abuts against the fixed plate. The horizontal portion of the limiting plate is successively inserted into the second through slot and the first through slot on the same side, and the vertical portion abuts against the side of the mounting plate. The nozzle faces the side away from the conveying horizontal pipe.

2. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, A rotating handle is fixedly connected to the end of the lead screw away from the vertical part of the support plate.

3. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, The top of the movable plate is fixed with a slider, and the bottom of the horizontal part of the support plate corresponding to the slider is provided with a matching groove, and the slider is slidably connected in the corresponding groove.

4. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, The horizontal portion of the limiting plate is adapted to the corresponding first and second through slots.

5. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, The mounting plate is adapted to the fixing plate, and a sealing gasket is fixed on the side of the mounting plate near the fixing plate.

6. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, The top of the material cylinder is fixedly connected to a feed pipe with a feed valve.

7. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, Both the air inlet pipe and the discharge pipe are equipped with flow regulating valves.

8. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, The end of the air intake pipe away from the delivery horizontal pipe is equipped with a quick connector.

9. The dry spraying device for repairing vertical fire ducts according to claim 1, characterized in that, A handle is fixedly connected to the bottom side of the conveying horizontal pipe near the air inlet pipe.

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