Dust collection and treatment system for bridge steel structure sand blasting room

Abstract

The utility model discloses a dust collecting and processing system for a bridge steel structure sand blasting room, which comprises a closed spraying chamber, a plurality of spraying nozzles are arranged at the top of the spraying chamber, each spraying nozzle is connected with an external water source, an air inlet header pipe is arranged on the side wall of the upper part of the spraying chamber, a plurality of air inlet branch pipes are connected to the branch ports of the air inlet header pipe, and the air inlet branch pipes are connected with a plurality of air outlet pipes. Each air inlet branch pipe is correspondingly connected with one air exhaust fan; a conical cylinder is arranged on the lower portion of the spraying chamber, a water inlet cylinder is arranged at the lower end of the conical cylinder, a water tank is arranged below the water inlet cylinder, a surrounding plate is arranged on the peripheral edge of an upper end opening of the water tank and surrounds the water inlet cylinder, the upper end opening of the water tank is connected with the outer wall of the spraying chamber in a sealed mode through the surrounding plate, and an air outlet cylinder is arranged on the side wall of one side of the surrounding plate. A water injection opening is formed in the side wall of the other side of the coaming; a liquid level meter is arranged on the side part of the water tank; the treatment system is carried out in a spraying dust removal mode, the dust amount in the sand blasting room can be effectively and rapidly reduced, and the purpose of purifying the working environment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure production dust removal equipment technical field especially a dust collection and treatment system for bridge steel structure sand blasting room. BACKGROUND

[0002] In the large bridge production line product, mainly large steel member, these steel member structures are relatively complex, cannot pass to the ordinary way of shot blasting to carry out derusting, need to be equipped with special sand blasting room, sand blasting room will produce a large amount of dust in the operation process, because sand blasting room is large (usually in 9000 * 32000 * 7000mm), dust floats in sand blasting room is difficult to collect and process, every time with the steel member's in and out will take out a large amount of dust, influence the surrounding operation environment, therefore it is very necessary to transform dust collection and treatment equipment, improve the operation environment in sand blasting room and surrounding nearby. SUMMARY

[0003] The utility model discloses to the above situation, provide a dust collection and treatment system for bridge steel structure sand blasting room, this treatment system is through the way of spray dust removal, can effectively reduce the dust amount in sand blasting room quickly, reach the purpose of purifying operation environment.

[0004] The utility model discloses a dust collection and treatment system for bridge steel structure sand blasting room, including the closed setting of spray chamber, the top of spray chamber is provided with a plurality of spray nozzles, every spray nozzle all is connected with external water source, the upper portion lateral wall of spray chamber is equipped with the air intake main pipe, and the air intake main pipe branch connection has a plurality of air intake branch pipes, and every air intake branch pipe all corresponds to connect an air extractor, and the air extractor is placed on the lateral wall of bridge steel structure sand blasting room, the lower part of spray chamber is provided with the cone cylinder, and the lower end of cone cylinder is provided with the water inlet cylinder, and the water tank is established below the water inlet cylinder, the upper end of water tank is provided with the baffle around the periphery, and the baffle is surrounded in the water inlet cylinder, and the lower end of water inlet cylinder is immersed in the water in the water tank, and the upper end of water tank is sealedly connected with the outer wall of spray chamber through the baffle, and the baffle is provided with the water inlet on one side lateral wall, and the water tank side is equipped with the liquid level meter, and the water tank is also equipped with the drain and the clean door on the lateral wall of bottom part.

[0005] Further, the number of spray nozzles in the utility model is 3-5, and a plurality of water spray holes are formed on the spray nozzles to form atomized spray.

[0006] Further, the water inlet cylinder in the utility model is inclined and inclined towards the air outlet cylinder.

[0007] Further, the lower end of the water inlet cylinder in the utility model is immersed below the water surface of the water tank by 10-20 mm.

[0008] Further, the number of the air suction fan is 8, and the air suction fan is divided into two groups, and each group has four air suction fans which are arranged on the two side walls of the bridge steel structure sand blasting room.

[0009] Further, the depth of the water tank is 1.2-1.5 m, and the height of the spraying chamber is 2.5-3 m.

[0010] The complete dust suction and spraying dust removal operation is designed, the large amount of dust in the sand blasting room is sucked out and cleaned by spraying water and water in the water tank, and then clean air is discharged or used, the working environment in the sand blasting room and the surrounding environment is greatly improved, the processing system has unique structure, high processing capacity, and good practical use and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] In the figure: 1 is a bridge steel structure sand blasting room, 2 is an air suction fan, 3 is an air inlet branch pipe, 4 is an air inlet main pipe, 5 is a spraying nozzle, 6 is a spraying chamber, 7 is a conical cylinder, 8 is a water inlet cylinder, 9 is an air outlet cylinder, 10 is a water tank, 11 is a drain, 12 is a cleaning door, 13 is a liquid level meter, 14 is a water inlet, and 15 is a baffle. DETAILED DESCRIPTION

[0013] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. In the description of the utility model, it should be explained that the terms "up", "down", "in", "out" and the like indicate the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product in use, which is only for the convenience of describing the utility model or simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed or operated in a specific orientation, therefore it cannot be understood as a limitation of the utility model.

[0014] In the description of the utility model, still need to explain, unless another explicit provision and limit, term '' set '', '' install '', '' connect '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element inside intercommunication, for ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model with specific circumstances.

[0015] Reference Figure 1 The utility model relates to a dust collection and treatment system for bridge steel structure sand blasting room, including the closed arrangement of spraying chamber 6, the top of spraying chamber is provided with a plurality of spraying nozzles 5, every spraying nozzle is connected with external water source, further, the number of spraying nozzle in the utility model is 3~5, a plurality of water spray orifices are set up on spraying nozzle to form atomization spraying, the upper portion lateral wall of spraying chamber is equipped with air intake main pipe 4, air intake main pipe branch connection has a plurality of air intake branch pipes 3, every air intake branch pipe corresponds to connect an air exhauster 2, and air exhauster is placed on the lateral wall of bridge steel structure sand blasting room, further, the number of air exhauster in the utility model is set to 8, and is divided into two groups, and every group is placed on the lateral wall of bridge steel structure sand blasting room on two sides 4 air exhausters, the lower part of spraying chamber is provided with conical cylinder 7, the lower end of conical cylinder is provided with water inlet cylinder 8, water tank 10 is equipped below water inlet cylinder, the periphery of the upper end of water tank is provided with fence 15, and the water inlet cylinder is surrounded in the fence, and the lower end of water inlet cylinder is immersed in the water in water tank, further, the utility model is provided with water inlet cylinder and is inclined to the direction of air outlet cylinder, further, the lower end of water inlet cylinder in the utility model is immersed below the water surface of water tank 10~20mm, and the upper end of water tank is sealedly connected with the outer wall of spraying chamber through the fence, the fence is provided with air outlet cylinder 9 on one lateral wall, and the other lateral wall of fence is provided with water inlet 14, and the side of water tank is provided with liquid level meter 13, and the bottom lateral wall of water tank is further provided with drain 11 and sewage door 12, further, the depth of water tank in the utility model is set to 1.2m~1.5m, and the height of spraying chamber is set to 2.5m~3m.

[0016] The bridge steel structure sand blasting room 1 in the utility model is processed to be 9m wide, 32m long and 7m high, and the two sides are provided with doors, which are double-leaf doors. The components are transferred to the sand blasting room by the electric flat car, the flat car is automatically lifted, and the finished components are placed on the sand blasting bed in the sand blasting room for sand blasting and rust removal. Eight air exhausters with a diameter of 600mm are installed on the two side walls of the sand blasting room, four on one side. The air exhausters are connected to the 1100mm air intake main pipe through the 600mm air intake branch pipe, and a 50000m³ / h fan can be connected to the air intake main pipe as needed. The air volume extracted is delivered to the spraying chamber.

[0017] The dust recovery treatment adopts a three-stage mode of cyclone + spraying + water tank, and the air volume delivered by the air suction fan is treated, and the dust particles in the air volume are sprayed through four spray nozzles and cyclone, and the dust is humidified and falls downward, and the outlet position is left in a 1200mm deep water tank, and the outlet is 10-20mm deep in the water tank, so that the humidified dust is ensured to fall in the water tank, and the clean air is discharged through the air outlet cylinder, and the clean air at the air outlet cylinder is connected to the sand blasting room, and the clean air is used as a fresh air system to be sent to the sand blasting room for recycling, or directly discharged.

[0018] The water tank is provided with a water inlet, a water outlet and a sewage door, and a liquid level meter is installed to observe the water level in the water tank, prevent the water level from being too low, and affect the treatment effect. The water in the water tank is connected with an external water purifier, and the purified water is connected with the spray nozzles at the top of the spray chamber for continuous recycling.

[0019] Through the above operation, the dust in the sand blasting room is effectively collected and treated, and the purpose of ensuring clean air in the sand blasting room is achieved.

[0020] In the utility model, the power of the air suction fan can be selected according to actual needs; the liquid level in the water tank is observed by the liquid level meter, and when water needs to be supplemented, the water inlet is used to supplement water, and when the water level is high, a certain amount of water can be discharged through the water outlet. There is no too strict requirement here, and the water level is appropriate; when the machine is stopped, the sewage in the water tank can be discharged, the sewage door is opened to clean the deposited silt, and the silt is used for other purposes.

[0021] The utility model discloses a complete dust suction and spraying dust removal operation, and a large amount of dust in the sand blasting room is sucked out, washed by spraying water and water in the water tank, and changed into clean air for discharge or other use. The working environment in the sand blasting room and the surrounding environment is greatly improved. The treatment system structure designed in the utility model is unique and novel, has strong treatment capacity, and has good practical use and popularization value.

Claims

1. A dust collection and disposal system for a bridge steel fabrication blast house, comprising: The utility model provides a bridge steel structure sand blasting room, including the closed arrangement of spray chamber, top of spray chamber is provided with a plurality of spray nozzles, each spray nozzle is connected with the water source of extracurricular, the upper lateral wall of spray chamber is equipped with air inlet manifold, air inlet manifold branch connection has a plurality of air inlet branch pipe, each air inlet branch pipe corresponds to connect an air exhauster, and the air exhauster is placed on the lateral wall of bridge steel structure sand blasting room, the lower part of spray chamber is provided with the cone cylinder, the lower end of cone cylinder is provided with the water inlet cylinder, and the water tank is equipped below the water inlet cylinder, the surrounding board is arranged around the upper end of water tank, the water inlet cylinder is surrounded in the surrounding board, the lower end of water inlet cylinder is immersed in the water in water tank, the upper end of water tank is sealedly connected with the outer wall of spray chamber through the surrounding board, the side wall of one side of surrounding board is equipped with the air outlet cylinder, the side wall of the other side of surrounding board is equipped with the water inlet, and the liquid level meter is equipped on the side of water tank, and the drain and the sewage door are further equipped on the bottom side wall of water tank.

2. A dust collection and disposal system for a bridge steel construction sandblasting house according to claim 1, characterized in that: The number of spray nozzles is 3-5, and a plurality of water injection holes are formed on the spray nozzle to form atomized spray.

3. A dust collection and disposal system for a bridge steel construction sandblasting house according to claim 1, characterized in that: The water inlet cylinder is inclined and inclined towards the air outlet cylinder.

4. The dust collection and disposal system for a bridge steel construction sandblasting house according to claim 1, characterized in that: The lower end of the water inlet cylinder is immersed below the water surface of the water tank by 10-20 mm.

5. The dust collection and disposal system for a bridge steel construction sandblasting house according to claim 1, characterized in that: The number of air exhausters is 8, which is divided into two groups, and each group has four air exhausters placed on the two side walls of the bridge steel structure sand blasting room.

6. A dust collection and disposal system for a bridge steel construction sandblasting house according to claim 1, characterized in that: The depth of the water tank is 1.2-1.5 m, and the height of the spray chamber is 2.5-3 m.

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