Overflow dust removal device for stirring barrel

Abstract

The utility model relates to the technical field of dust removal, in particular to an overflow dust removal device for a stirring barrel. The filter element is low in dust falling cost, simple in structure, convenient to operate and capable of effectively preventing dust pollution. Comprising a stirring barrel, an overflow pipe and an overflow groove, one end of the overflow pipe is communicated with the side wall, close to the top, of the stirring barrel, and the other end of the overflow pipe is communicated with the overflow groove; the horizontal position of the overflow pipe close to one end of the stirring barrel is higher than that of the overflow pipe close to one end of the overflow groove; the overflow groove is provided with a dust falling mechanism, the dust falling mechanism comprises a spray pipe arranged in the overflow groove, and the spray pipe is communicated with a spray nozzle and a spray liquid supply device communicated with the spray pipe. The stirring barrel overflow dust removal device provided by the utility model is low in dust removal cost, simple in structure, convenient to operate and capable of effectively preventing dust pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, and in particular to an overflow dust removal device for a mixing barrel. Background Art

[0002] The mixing barrel is used to stir the powder to make it evenly mixed. An overflow pipe is generally provided on the mixing barrel. When the powder reaches a certain volume in the mixing barrel, it will enter the overflow tank through the overflow pipe to avoid excessive amount of powder in the mixing barrel.

[0003] In actual applications, on the one hand, the lid of the mixing barrel is often closed, and dust will be stirred up in the mixing barrel when adding powder to the mixing barrel and stirring, and the dust will enter the overflow tank through the overflow pipe; on the other hand, when the powder reaches a certain volume in the mixing barrel, the material discharge process into the overflow tank through the overflow pipe will also raise a lot of dust in the overflow tank. For the above reasons, the dust content in the air in the overflow tank environment is too high, and the ambient air quality is poor.

[0004] The prior art generally arranges a negative pressure exhaust device on the overflow trough, which is connected to the outside through the negative pressure exhaust device. A dust removal filter is arranged in the negative pressure exhaust device, so that after cement and other powder materials enter the overflow trough, the stirred dust can flow to the negative pressure exhaust device and then be blocked by the dust removal filter. While exhausting, it can also prevent dust diffusion and effectively prevent dust pollution. However, this dust removal method requires regular replacement of the dust removal filter, and the dust reduction cost is relatively high. Utility Model Content

[0005] The utility model aims to provide a mixing drum overflow dust removal device to solve the technical problem that the mixing drum overflow dust removal device in the prior art needs to regularly replace the dust removal filter element, which is costly.

[0006] To solve the above technical problems, this application provides the following technical solutions:

[0007] A mixing barrel overflow dust removal device, comprising a mixing barrel, an overflow pipe and an overflow tank;

[0008] One end of the overflow pipe is connected to the side wall of the mixing barrel near the top, and the other end of the overflow pipe is connected to the overflow tank; the horizontal position of the overflow pipe near one end of the mixing barrel is higher than the horizontal position of the overflow pipe near one end of the overflow tank;

[0009] The overflow trough is equipped with a dust reduction mechanism, which includes a spray pipe arranged inside the overflow trough, a spray nozzle connected to the spray pipe, and a spray liquid supply device connected to the spray pipe.

[0010] Furthermore, the spray liquid supply device includes a gas supply device and a liquid supply device, the gas supply device is connected to the spray pipe through an air supply pipe, and the liquid supply device is connected to the spray pipe through a liquid supply pipe; the gas supply device is used to provide high-pressure gas and / or the liquid supply device is used to provide high-pressure liquid.

[0011] Furthermore, a flushing mechanism is provided inside the overflow trough, and the flushing mechanism is used to flush the inner wall surface of the overflow trough.

[0012] Furthermore, the flushing mechanism includes an annular flushing pipe fixedly arranged near the inner wall of the top of the overflow tank, a plurality of flushing nozzles connected to the annular flushing pipe, and a flushing liquid supply device for providing liquid to the annular flushing pipe.

[0013] Furthermore, the plurality of flushing nozzles are evenly distributed along the circumference of the annular flushing pipe.

[0014] Furthermore, a discharge port is arranged at the bottom of the overflow tank.

[0015] Furthermore, it also includes an air supply valve and a liquid supply valve; the air supply valve is arranged between the air supply pipe and the gas supply device; the liquid valve is arranged between the liquid supply pipe and the liquid supply device.

[0016] Furthermore, the spray nozzles are provided in multiple pieces, and the multiple spray nozzles are evenly distributed along the length direction of the spray pipe.

[0017] Further, the spray pipes are distributed along the radial direction of the overflow trough;

[0018] Furthermore, the plurality of spray nozzles are at different circumferential positions on the spray pipe, and the spray nozzles include spray nozzles facing above the overflow groove and spray nozzles facing below the overflow groove.

[0019] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0020] The mixing barrel overflow dust removal device provided by the utility model has low dust reduction cost, simple structure, convenient operation, and can effectively prevent dust pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0022] Figure 1 A structural diagram of a mixing barrel overflow dust removal device provided in Example 1 of the utility model;

[0023] Figure 2A top view of the annular flushing mechanism of the mixing barrel overflow dust removal device provided in Example 1 of the utility model.

[0024] Icons: 1-mixing barrel, 2-overflow pipe, 3-overflow trough, 4-dust reduction mechanism, 41-air supply pipe, 42-liquid supply pipe, 43-spray pipe, 431-spray nozzle, 44-gas supply device, 45-liquid supply device, 46-air supply valve, 47-liquid supply valve, 5-annular flushing mechanism, 51-flushing nozzle, 52-annular flushing pipe, 6-discharge port. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0026] Example 1

[0027] A mixing barrel overflow dust removal device, comprising a mixing barrel 1, an overflow pipe 2 and an overflow tank 3;

[0028] One end of the overflow pipe 2 is connected to the side wall of the mixing barrel 1 near the top, and the other end of the overflow pipe 2 is connected to the overflow tank 3; the horizontal position of the overflow pipe 2 near one end of the mixing barrel 1 is higher than the horizontal position of the overflow pipe 2 near one end of the overflow tank 3;

[0029] The overflow trough 3 is provided with a dust reduction mechanism 4 , which includes a spray pipe 43 arranged inside the overflow trough 3 , a spray nozzle 431 connected to the spray pipe 43 , and a spray liquid supply device connected to the spray pipe 43 .

[0030] The mixing barrel 1 stirs the powder to make it evenly mixed. When there is too much powder in the mixing barrel 1, the excess powder enters the overflow tank 3 through the overflow pipe 2. When the powder falls from the overflow pipe 2 into the overflow tank 3, a large amount of dust raised combines with the mist liquid sprayed from the spray nozzle 431 and settles, thereby achieving dust reduction.

[0031] The method used in the present application for spraying mist liquid can be a method of using high-pressure liquid to hit the nozzle at high speed, or a method of introducing high-pressure gas and liquid to mix to form a high-pressure gas-liquid mixture, which is then atomized and sprayed from the spray nozzle 431 after passing through the spray pipe 43.

[0032] In this embodiment, the mixing barrel overflow dust removal device preferably includes a gas supply device 44 and a liquid supply device 45, wherein the gas supply device 44 is connected to the spray pipe 43 via an air supply pipe 41, and the liquid supply device 45 is connected to the spray pipe 43 via a liquid supply pipe 42; the gas supply device 44 is used to provide high-pressure gas, and / or the liquid supply device 45 is used to provide high-pressure liquid.

[0033] The high-pressure gas is mixed with the liquid to form a high-pressure gas-liquid mixture, which is then atomized and sprayed out from the spray nozzle 431 after passing through the spray pipe 43. The dust in the overflow trough 33 combines with the water mist and settles. Most of the wet dust settles at the bottom of the overflow trough 33, but some of it will adhere to the inner wall surface of the overflow trough 33. Over time, a layer of wet slurry will accumulate on the inner wall surface of the overflow trough 33.

[0034] Therefore, in this embodiment, a flushing mechanism is further provided inside the overflow trough 3 for flushing the inner wall surface of the overflow trough 3. The flushing mechanism can be a nozzle that can rotate and spray water at multiple angles and is provided at the top of the overflow trough 3, or an annular flushing pipe 52 provided around the inner wall of the overflow trough 3 and having multiple flushing nozzles 51 that can spray water toward the inner wall of the inner overflow trough 3. The preferred flushing mechanism in this embodiment includes an annular flushing pipe 52 fixedly provided near the inner wall of the top of the overflow trough 3, multiple flushing nozzles 51 connected to the annular flushing pipe 52, and a flushing liquid supply device for providing liquid to the annular flushing pipe 52;

[0035] Among them, multiple flushing nozzles 51 are evenly distributed along the circumference of the annular flushing pipe 52, and the flushing nozzles 51 are all facing the inner wall surface of the overflow groove 3, which is used to regularly flush the inner wall surface of the overflow groove 33, and flush a layer of wet slurry attached to the inner wall surface to the bottom of the overflow groove 33.

[0036] In this embodiment, a discharge port 6 is further provided at the bottom of the overflow tank 3 to collect the wet powder in the overflow tank 33 for subsequent processing and utilization.

[0037] This embodiment also provides an air supply valve 46 and a liquid supply valve 47. The air supply valve 46 is arranged between the air supply pipe 41 and the gas supply device 44 to control the on-off connection between the air supply pipe 41 and the gas supply device 44; the liquid valve is arranged between the liquid supply pipe 42 and the liquid supply device 45 to control the on-off connection between the liquid supply pipe 42 and the liquid supply device 45.

[0038] In this embodiment, the spray nozzles 431 are provided in multiple pieces, and the multiple spray nozzles 431 are evenly distributed along the length direction of the spray pipe 43, and the spray pipe 43 is distributed along the radial direction of the overflow groove;

[0039] The plurality of spray nozzles 431 are located at different circumferential positions on the spray pipe 43 , and the spray nozzles 431 include a spray nozzle 432 directed toward the top of the overflow groove 3 and a spray nozzle directed toward the bottom of the overflow groove 3 .

[0040] In summary, the mixing barrel overflow dust removal device of the present application has low dust reduction cost, simple structure, and convenient operation, and can effectively prevent dust pollution from overflowing the mixing barrel.

Claims

1. A mixing barrel overflow dust removal device, characterized in that: It includes a mixing barrel, an overflow pipe and an overflow tank; One end of the overflow pipe is connected to the side wall of the mixing barrel near the top, and the other end of the overflow pipe is connected to the overflow tank; the horizontal position of the overflow pipe near one end of the mixing barrel is higher than the horizontal position of the overflow pipe near one end of the overflow tank; The overflow trough is equipped with a dust reduction mechanism, which includes a spray pipe arranged inside the overflow trough, a spray nozzle connected to the spray pipe, and a spray liquid supply device connected to the spray pipe.

2. The overflow dust removal device for a mixing barrel according to claim 1, characterized in that: The spray liquid supply device includes a gas supply device and a liquid supply device, the gas supply device is connected to the spray pipe through an air supply pipe, and the liquid supply device is connected to the spray pipe through a liquid supply pipe; the gas supply device is used to provide high-pressure gas and / or the liquid supply device is used to provide high-pressure liquid.

3. The overflow dust removal device for a mixing barrel according to any one of claims 1 to 2, characterized in that: A flushing mechanism is also provided inside the overflow trough, and the flushing mechanism is used to flush the inner wall surface of the overflow trough.

4. The overflow dust removal device for a mixing barrel according to claim 3, characterized in that: The flushing mechanism includes an annular flushing pipe fixedly arranged near the inner wall of the top of the overflow tank, a plurality of flushing nozzles connected to the annular flushing pipe, and a flushing liquid supply device for providing liquid to the annular flushing pipe.

5. The overflow dust removal device for a mixing barrel according to claim 4, characterized in that: The plurality of flushing nozzles are evenly distributed along the circumference of the annular flushing pipe.

6. The overflow dust removal device for a mixing barrel according to any one of claims 1 to 2, characterized in that: A discharge port is arranged at the bottom of the overflow tank.

7. The overflow dust removal device for a mixing barrel according to claim 2, characterized in that: It also includes an air supply valve and a liquid supply valve; the air supply valve is arranged between the air supply pipe and the gas supply device; the liquid supply valve is arranged between the liquid supply pipe and the liquid supply device.

8. The overflow dust removal device for a mixing barrel according to claim 1, characterized in that: The spray nozzles are provided in multiple pieces, and the multiple spray nozzles are evenly distributed along the length direction of the spray pipe.

9. The overflow dust removal device for a mixing barrel according to claim 1, characterized in that: The length direction of the spray pipe is distributed along the radial direction of the overflow groove.

10. The overflow dust removal device for a mixing drum according to claim 1, characterized in that: The spray nozzles include a spray nozzle facing above the overflow trough and a spray nozzle facing below the overflow trough.

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