CN214319622U - Molding sand reutilization dust collecting equipment - Google Patents

Abstract

The utility model discloses a molding sand secondary utilization dust removal equipment, which comprises a tail waste gas collection device, an air inlet pipeline, a purification cabin, a water tank, a first air outlet pipeline, a fan and a second air outlet pipeline, wherein the top end of the tail waste gas collection device is connected with the purification cabin through the air inlet pipeline, the water tank is arranged at the lower end of the purification cabin, the purification cabin comprises four purification chambers, high-pressure atomization nozzles and partition plates which are arranged left and right, and a partition plate is arranged between every two adjacent purification chambers; the upper surface, the left surface and the right surface of the inner wall of the purification cabin are respectively provided with a plurality of high-pressure atomizing nozzles, and the high-pressure atomizing nozzles are connected with a high-pressure water pump through water pipes; the terminal clean room upper end of clean room links to each other with the fan entry through first pipeline of giving vent to anger, the fan export links to each other with the second pipeline of giving vent to anger, the second pipeline of giving vent to anger export is located the foundry sand muck and piles the upside. The molding sand secondary utilization dust removal equipment has the advantages of simple structure, small occupied area, large filtering area, high efficiency, no pollution and the like.

Description

Molding sand reutilization dust collecting equipment

Technical Field

The utility model belongs to the technical field of the sand reutilization removes dust in the casting process, concretely relates to molding sand reutilization dust collecting equipment.

Background

With the rapid development of the manufacturing industry in China, the casting industry is rapidly developed as an important component of a machining process, the most important material, namely molding sand, is regarded as the most core cost in the casting process, and the molding sand is secondarily utilized for reducing the casting cost. However, the used molding sand must be crushed and screened before secondary utilization, and the used molding sand is extremely dry, so that a large amount of dust is generated in the crushing and screening processes, and a production workshop and the surrounding environment are seriously polluted, so that the generated dust air must be subjected to dust removal treatment, but the traditional bag dust removal has the defects of large occupied area, low efficiency, frequent bag replacement, high cost and the like because the dust is treated by professional departments. Therefore, a secondary utilization dust removal device with small floor area, large filtration area, high efficiency and no pollution is urgently needed, and the technical problem in the technical field is solved.

Disclosure of Invention

The utility model aims at providing a molding sand reutilization dust collecting equipment, this molding sand reutilization dust collecting equipment have simple structure, convenient to use, area are little, filter area is big, efficient, pollution-free advantage.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a molding sand secondary utilization dust removal device comprises a tail waste gas collection device, an air inlet pipeline, a purification cabin, a water tank, a first air outlet pipeline, a fan and a second air outlet pipeline, wherein the tail waste gas collection device is of an inverted cone structure, the top end of the tail waste gas collection device is connected with the purification cabin through the air inlet pipeline, the water tank is arranged below the purification cabin, the lower end of the purification cabin is immersed in the horizontal plane of the water tank to seal the purification cabin, the purification cabin comprises four purification chambers, high-pressure atomization nozzles and partition plates which are arranged left and right, and a partition plate is arranged between every two adjacent purification chambers; the upper surface, the left surface and the right surface of the inner wall of the purification cabin are respectively provided with a plurality of high-pressure atomizing nozzles, and the high-pressure atomizing nozzles are connected with a high-pressure water pump through water pipes; the terminal clean room upper end of clean room links to each other with the fan entry through first pipeline of giving vent to anger, the fan export links to each other with the second pipeline of giving vent to anger, the second pipeline of giving vent to anger export is located the foundry sand muck and piles the top.

Further preferably, the purification cabin comprises four purification chambers arranged left and right, namely a first purification chamber, a second purification chamber, a third purification chamber and a fourth purification chamber, wherein the first purification chamber and the second purification chamber are communicated at the lower section of the partition plate, the second purification chamber and the third purification chamber are communicated at the upper section of the partition plate, and the third purification chamber and the fourth purification chamber are communicated at the lower section of the partition plate.

Further preferably, the air inlet pipeline is connected with the upper end of the first purifying chamber, and the first air outlet pipeline is connected with the upper end of the fourth purifying chamber.

Further preferably, the first purifying chamber, the second purifying chamber, the third purifying chamber and the fourth purifying chamber formed by the purifying cabin and the water tank are closed spaces.

Further preferably, the tail off-gas collection means is located on the upper side of the end of the sand crushing and screening device.

The utility model has the advantages that:

before the foundry sand is secondarily utilized, the foundry sand needs to be crushed and screened, because the foundry sand is extremely dry, a large amount of dust can be generated in the crushing and screening process, in order to purify the environment and process the dust, the secondary utilization dust removal equipment for the foundry sand can be connected and installed according to the technical characteristics, the tail waste gas collecting device is positioned at the upper side of the tail end of the sand crushing and screening device, the tail waste gas collecting device adopts an inverted cone-shaped structure to increase the absorption area of the crushing and screening device, a closed negative pressure area is formed under the action of a fan because the air inlet pipeline, the first purifying chamber, the second purifying chamber, the third purifying chamber, the fourth purifying chamber and the first air outlet pipeline form a closed space, the air containing the dust is intensively absorbed into the air inlet pipeline under the action of negative pressure and then enters the purifying chamber, a plurality of high-pressure atomizing nozzles are arranged on the upper side surface and the left and right side surfaces in the purifying chamber, air containing dust sequentially enters a first purifying chamber, a second purifying chamber, a third purifying chamber and a fourth purifying chamber, and the dust is deposited into a water tank below a purifying cabin by water mist sprayed by a high-pressure atomizing nozzle.

The first purifying chamber is communicated with the second purifying chamber at the lower section of the partition plate, the second purifying chamber is communicated with the third purifying chamber at the upper section of the partition plate, and the third purifying chamber is communicated with the fourth purifying chamber at the lower section of the partition plate, so that the motion track of the air containing dust in the purifying chamber is prolonged, namely, the air enters the first air outlet pipeline from top to bottom, from bottom to top and from top to bottom, and the dust is fully purified by high-pressure atomized water. After the purification cabin is processed, the air enters the second air outlet pipeline through the exchange of the first air outlet pipeline and the fan, and the air exhausted by the second air outlet pipeline can preliminarily wet the molding sand pile due to air humidification, so that the secondary utilization of molding sand is facilitated.

The dust is precipitated in the water tank, and the water tank can be drained by an operator at regular intervals and then is subjected to pollution discharge treatment. Adopt this molding sand secondary use dust collecting equipment not have the useless production of tail, environmental protection more, simultaneously area is little, filter area is big, efficient advantage such as high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure, 1, an air inlet pipeline; 2. a tail exhaust gas collection device; 3. sand mould heaps; 4. a molding sand crushing and screening device; 5. a water tank; 6. a high pressure atomizer; 7. a first purification chamber; 8. a first separator; 9. a second clean room; 10. a second separator; 11. a third clean room; 12. a third partition plate; 13. a fourth clean room; 14. a first outlet duct; 15. a fan; 16. a second outlet duct; 17. a water pipe.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, the present embodiment includes tail waste gas collection device 2, inlet line 1, clean room, water tank 5, first outlet pipe 14, fan 15, second outlet pipe 16, and tail waste gas collection device 2 adopts the back taper structure, and tail waste gas collection device 2 is located the terminal upside of screening plant 4 is smashed to the molding sand. The top end of the tail waste gas collecting device 2 is connected with a purifying cabin through an air inlet pipeline 1, the lower end of the purifying cabin is provided with a water tank 5, the lower end of the purifying cabin is immersed in the horizontal plane of the water tank 5 to seal the purifying cabin, the purifying cabin comprises a first purifying chamber 7, a second purifying chamber 9, a third purifying chamber 11, a fourth purifying chamber 13, a high-pressure atomizing nozzle 6, a first partition plate 8, a second partition plate 10 and a third partition plate 12 which are arranged left and right, and a partition plate is arranged between every two adjacent purifying chambers; the purifying cabin is composed of four purifying rooms which are arranged left and right and are respectively a first purifying room 7, a second purifying room 9, a third purifying room 11 and a fourth purifying room 13, the first purifying room 7 is communicated with the second purifying room 9 at the lower section of a first partition plate 8, the second purifying room 9 is communicated with the third purifying room 11 at the upper section of a second partition plate 10, the third purifying room 11 is communicated with the fourth purifying room 13 at the lower section of a third partition plate 12, and the first purifying room 7, the second purifying room 9, the third purifying room 11 and the fourth purifying room 13 which are formed by the purifying cabin and the water tank 5 are closed spaces. The air inlet pipeline 1 is connected with the upper end of the first purifying chamber 7, and the first air outlet pipeline 14 is connected with the upper end of the fourth purifying chamber 13.

A plurality of high-pressure atomizing nozzles 6 are arranged on the upper surface, the left surface and the right surface of the inner wall of the purifying cabin, and each high-pressure atomizing nozzle 6 is connected with a high-pressure water pump through a water pipe 17; the terminal clean room of clean room is the upper end of fourth clean room 13 and passes through first air outlet pipe 14 and links to each other with the fan 15 entry, and the export of fan 15 links to each other with second air outlet pipe 16, and the export of second air outlet pipe 16 is located the casting sand sediment heap 3 upside.

Before the foundry sand is secondarily utilized, the foundry sand needs to be crushed and screened, because the foundry sand is extremely dry, a certain amount of dust is generated in the crushing and screening process, in order to achieve the purposes of purifying the environment and treating the dust, the foundry sand can be secondarily utilized and installed by dust removal equipment according to the technical characteristics, the tail waste gas collecting device 2 is positioned at the upper side of the tail end of the molding sand crushing and screening device 4, the tail waste gas collecting device 2 adopts an inverted cone structure to increase the absorption area of tail waste air on the upper side of the crushing and screening device 4, and a closed space is formed by the air inlet pipeline 1, the first purifying chamber 7, the second purifying chamber 9, the third purifying chamber 11, the fourth purifying chamber 13 and the first air outlet pipeline 14 under the action of the fan 15 to form a closed negative pressure area, so that the air containing the dust is intensively absorbed into the air inlet pipeline 1 under the action of negative pressure by the tail waste gas collecting device 2 and then enters the purifying chamber, a plurality of high-pressure atomizing nozzles 6 are arranged on the upper side face and the left and right side faces in the purifying cabin, air containing dust sequentially enters a first purifying chamber 7, a second purifying chamber 9, a third purifying chamber 11 and a fourth purifying chamber 13, and water mist sprayed by the high-pressure atomizing nozzles 6 deposits the dust into a water tank 5 on the lower side.

The first purifying chamber 7 is communicated with the second purifying chamber 9 at the lower section of the first clapboard 8, the second purifying chamber 9 is communicated with the third purifying chamber 11 at the upper section of the second clapboard 10, and the third purifying chamber 11 is communicated with the fourth purifying chamber 13 at the lower section of the third clapboard 12, so that the motion track of the air containing dust in the purifying cabin is prolonged, namely the air enters the first air outlet pipeline 14 from top to bottom, then from bottom to top, and then from top to bottom and from bottom to top, so that the dust is fully purified by high-pressure atomized water. After the purification cabin is processed, the air enters the second air outlet pipeline 16 through the exchange of the first air outlet pipeline 14 and the fan 15, and the air exhausted through the second air outlet pipeline 16 can preliminarily wet the molding sand pile 3 due to air humidification, so that the secondary utilization of molding sand is facilitated.

The dust is precipitated in the water tank 5, and the water tank 5 can be drained by an operator at regular intervals and then the water tank 5 is subjected to pollution discharge treatment. Adopt this molding sand secondary use dust collecting equipment not have the useless production of tail, environmental protection more, simultaneously area is little, filter area is big, efficient advantage such as high.

The embodiment is only for the illustration of the concept and implementation of the present invention, and is not limited thereto, and the technical solution without substantial transformation is still within the protection scope under the concept of the present invention.

Claims (5)

1. The utility model provides a molding sand reutilization dust collecting equipment which characterized in that: the tail waste gas purification device is of an inverted cone structure, the top end of the tail waste gas collection device is connected with the purification cabin through the air inlet pipeline, the water tank is arranged below the purification cabin, the lower end of the purification cabin is immersed in the horizontal plane of the water tank to seal the purification cabin, the purification cabin comprises four purification chambers, high-pressure atomization nozzles and partition plates which are arranged left and right, and a partition plate is arranged between every two adjacent purification chambers; the upper surface, the left surface and the right surface of the inner wall of the purification cabin are respectively provided with a plurality of high-pressure atomizing nozzles, and the high-pressure atomizing nozzles are connected with a high-pressure water pump through water pipes; the terminal clean room upper end of clean room links to each other with the fan entry through first pipeline of giving vent to anger, the fan export links to each other with the second pipeline of giving vent to anger, the second pipeline of giving vent to anger export is located the foundry sand muck and piles the top.

2. The sand secondary usage dust removing apparatus of claim 1, wherein: the four purification chambers which are arranged left and right of the purification cabin are respectively a first purification chamber, a second purification chamber, a third purification chamber and a fourth purification chamber, the first purification chamber is communicated with the second purification chamber at the lower section of the partition plate, the second purification chamber is communicated with the third purification chamber at the upper section of the partition plate, and the third purification chamber is communicated with the fourth purification chamber at the lower section of the partition plate.

3. The sand secondary usage dust removing apparatus of claim 2, wherein: the air inlet pipeline is connected with the upper end of the first purifying chamber, and the first air outlet pipeline is connected with the upper end of the fourth purifying chamber.

4. The sand secondary usage dust removing apparatus of claim 2 or 3, wherein: the first purifying chamber, the second purifying chamber, the third purifying chamber and the fourth purifying chamber formed by the purifying cabin and the water tank are closed spaces.

5. The sand secondary usage dust removing apparatus of claim 1, wherein: the tail waste gas collecting device is positioned on the upper side of the tail end of the molding sand crushing and screening device.

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