Air leakage prevention device for bottom drain opening of movable rotational flow plate dust remover

Abstract

The invention discloses an air leakage prevention device for a bottom drain opening of a movable rotational flow plate deduster, and belongs to the technical field of rotational flow plate dedusters.The air leakage prevention device comprises a deduster body, a water tank and a water pump, the water outlet section of the bottom of the deduster body is located in the water tank, and the two ends of the water pump are connected with the deduster body and the water tank respectively; the water pump pumps water from the water tank and then pumps the water into the dust remover body, so that the water is mixed with dust in the dust remover body and then flows into the water tank; the liquid level of water in the water tank is higher than the height of a water outlet of the water outlet section; a water bucket is arranged outside the water outlet section, and the bottom of the water bucket is connected with the water tank. According to the invention, the problem of air leakage possibly generated at the water outlet at the bottom of the cyclone plate dust remover is fundamentally solved.

Description

Technical Field

[0001] The invention relates to the technical field of cyclone plate dust collectors, in particular to an anti-leakage device for a bottom water drain port of a mobile cyclone plate dust collector. Background Art

[0002] The cyclone plate dust collector is a highly efficient wet dust collector in the field of environmental protection. When working, the airflow usually enters from the tower tangentially, and after passing through the cyclone plate, the airflow is guided into a circumferential high-speed rotating airflow. At the same time, water flows from top to bottom through a pipe and sprinkles on the blind plate of the cyclone plate. After the airflow and the water droplets on the cyclone plate are fully mixed, the water droplets and dust are thrown to the inner wall of the cyclone plate tower by centrifugal force and flow downward under the action of gravity, flowing into the water storage tank at the bottom, and the clean air flows out from the top of the tower.

[0003] Usually the cyclone plate dust collector is cylindrical and has three inlets and outlets. The side inlet is the inlet of the dusty airflow, the top outlet is the outlet of the purified clean airflow, and the bottom outlet is the outlet of the dusty water flow. The cyclone plate dust collector usually works under negative pressure, and the water flow outlet at the bottom is usually submerged in the liquid tank to a certain depth to prevent external airflow from entering the cyclone plate dust collector from the bottom water outlet and affecting the dust removal efficiency.

[0004] In a mobile cyclone dust collector, there is a mobile chassis or the position of the dust collector will be moved after a certain period of time as required by the operation process. However, the ground in engineering operation scenes is usually not very flat. Therefore, for a dust collector with a large-area shallow water tank structure, the liquid level in the water tank may be tilted due to the tilt of the ground, making the liquid level in a certain part of the water tank shallower, which is not enough to seal the outlet at the bottom of the cyclone dust collector, and may cause air leakage from the bottom of the cyclone dust collector.

[0005] In the field of dust removal, the water tank of the cyclone plate dust collector is often not designed to be deep enough due to limitations in working space and other scenarios. As a result, during mobile operations, the liquid level in the water tank may be deep in some places and shallow in others due to uneven ground. If the water outlet of the cyclone plate dust collector happens to be located in an area with a relatively shallow liquid level, airflow from the environment may flow in from the bottom, thereby affecting the normal operation of the cyclone plate dust collector.

[0006] In order to solve this engineering problem, the present invention proposes an anti-leakage device for the bottom water drain port of a mobile cyclone plate dust collector. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an anti-leakage device for the bottom water drain port of a mobile cyclone plate dust collector.

[0008] The technical solution of the present invention to solve the above technical problems is as follows:

[0009] A device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector comprises a dust collector body, a water tank and a water pump. The water outlet section at the bottom of the dust collector body is located in the water tank. Both ends of the water pump are respectively connected to the dust collector body and the water tank. The water pump draws water from the water tank and pumps it into the dust collector body, so that the water is mixed with dust in the dust collector body and then flows into the water tank. The liquid level of the water in the water tank is higher than the height of the water outlet of the water outlet section. A water bucket is arranged outside the water outlet section, and the bottom of the water bucket is connected to the water tank.

[0010] Furthermore, a plurality of outlets are provided at the bottom of the side of the bucket.

[0011] Furthermore, the cross section of the outlet is perpendicular to the tangent direction of the side of the bucket.

[0012] Furthermore, four outlets are provided.

[0013] Furthermore, the four outlets are evenly arranged along the circumference of the bucket.

[0014] Furthermore, the water bucket is arranged concentrically with the water outlet section.

[0015] Furthermore, the total area of ​​the outlets is less than 0.2 times the area of ​​the outlet of the water outlet section.

[0016] Furthermore, the difference between the water bucket height H and the water outlet section height h is greater than the height of the water column of the negative pressure inside the dust collector body.

[0017] Furthermore, the inner diameter D of the water bucket is equal to √2 times the inner diameter d of the water outlet section.

[0018] In summary, compared with the prior art, the above technical solution has the following beneficial effects:

[0019] (1) The present invention embeds a water bucket outside the bottom water outlet section of the dust collector body, so that the water flowing out of the water outlet section at the bottom of the dust collector first flows into the outer water bucket and then overflows from the outer water bucket. The benefit of this is that even if the entire water tank has a certain inclination, because the cross-sectional area of ​​the outer water bucket is limited, and water continuously flows out from the water outlet section at the bottom of the cyclone plate dust collector, the liquid level in the outer water bucket will always maintain a consistent liquid level at the outlet of the upper edge of the water bucket, thereby avoiding the situation where the airflow generated from the outlet of the water outlet section at the bottom of the dust collector enters the cyclone plate dust collector;

[0020] (2) The present invention also has tangential outlets processed around the bottom of the water bucket. During operation, because the water flow flowing down from the cyclone plate dust collector is rotating, the outlet at the bottom of the water bucket is designed to flow out tangentially along the wall surface. In this way, it is not easy for dust to settle at the bottom of the water bucket. The dust in the water flow can be directly taken out to avoid its deposition in the outer water pipe, thereby ensuring the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a cyclone plate dust collector;

[0022] Figure 2 It is a schematic diagram of the overall structure of the cyclone plate dust collector in an inclined state;

[0023] Figure 3 This is a schematic diagram of the overall structure after the water bucket is installed;

[0024] Figure 4 This is a schematic diagram of the structure of a bucket;

[0025] Figure 5 It is a schematic diagram of the structure of the water bucket and the outlet;

[0026] Figure 6 This is a schematic diagram of the overall structure in a tilted state after the water bucket is installed.

[0027] Explanation of the accompanying drawings: 1. Dust collector body; 2. Water tank; 3. Water pump; 4. Water bucket; 5. Water outlet section; 6. Outlet. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with all the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] There are two main reasons why the bottom of the cyclone plate dust collector may leak. One is that the liquid tank is relatively shallow and the water level is limited. If the water level is not properly controlled during operation, it is easy to leak from the bottom. Another reason is that in a shallow water level and large area of ​​the water tank 2, when the ground is uneven and has a certain inclination, it is easy to produce a local liquid level in the water tank 2 that is too shallow, which leads to leakage at the bottom of the dust collector.

[0030] The working system of the cyclone plate dust collector is as follows: Figure 1 As shown, the system includes a dust collector body 1, a water tank 2, and a water pump 3. During operation, the dust-laden gas enters the cyclone plate dust collector from the side of the dust collector body 1, and the purified gas flows out from the top of the cyclone plate dust collector. During operation, the water pump 3 extracts water from the water tank 2 and pumps it into the dust collector body 1. This part of water mixes with the dust in the airflow in the dust collector body 1 and then flows into the water tank 2. One condition for the normal operation of the dust collector body 1 is that the liquid level in the water tank 2 must be higher than the water outlet of the water outlet section 5 at the bottom of the dust collector body 1 by one height, so as to prevent the external airflow from flowing into the dust collector from the bottom of the cyclone plate dust collector and affecting the working efficiency of the dust collector.

[0031] However, in the working scene of the mobile cyclone plate dust collector, due to the influence of the working environment, the working ground may not be very flat and have a certain inclination angle. At this time, the position of the system is like Figure 2 At this time, because the water tank 2 is in an inclined state, the liquid level at the water outlet at the bottom of the cyclone plate dust collector will be very shallow or even directly exposed, and it is easy to generate external airflow from the bottom to be sucked into the cyclone plate dust collector, affecting the normal operation of the system.

[0032] In order to solve the above-mentioned problem, the embodiment of the present invention discloses a device for preventing air leakage at the bottom water drain port of a mobile cyclone plate dust collector.

[0033] Reference Figure 3-Figure 6 A device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector comprises a dust collector body 1, a water tank 2 and a water pump 3. The water outlet section 5 at the bottom of the dust collector body 1 is located in the water tank 2. Both ends of the water pump 3 are respectively connected to the dust collector body 1 and the water tank 2. The water pump 3 draws water from the water tank 2 and pumps it into the dust collector body 1, so that the water is mixed with the dust in the dust collector body 1 and then flows into the water tank 2; the liquid level of the water in the water tank 2 is higher than the height of the water outlet of the water outlet section 5; a water bucket 4 is arranged outside the water outlet section 5, and the water bucket 4 is concentrically arranged with the water outlet section 5. The difference between the height H of the water bucket 4 and the height h of the water outlet section 5 is greater than the height of the water column of the negative pressure inside the dust collector body 1, and the inner diameter D of the water bucket 4 is equal to √2 times the inner diameter d of the water outlet section. The water bucket 4 in the present embodiment is set to be cylindrical, and the bottom of the water bucket 4 is connected to the water tank 2, so that the water in the water outlet section 5 at the bottom of the dust collector body 1 first flows into the outer water bucket 4 and then overflows from the water bucket 4. The advantage of this is that even if the entire water tank 2 has a certain inclination, because the cross-sectional area of ​​the water bucket 4 is limited, and water continuously flows out from the water outlet section 5 of the cyclone plate dust collector, the liquid level in the water bucket 4 will always maintain a liquid level consistent with the outlet on the water bucket 4, thereby avoiding the situation where the water flowing out from the bottom of the dust collector body 1 generates airflow entering the cyclone plate dust collector.

[0034] Reference Figure 4 and Figure 5In order to prevent the dust in the water flow from being deposited in the outer water pipe, thereby causing the system to not work properly, the embodiment of the present invention also opens a plurality of outlets 6 at the bottom of the side of the water bucket 4, and there are four outlets 6. The four outlets 6 are evenly arranged along the circumference of the water bucket 4, and the four outlets 6 are arranged at intervals of 90° along the tangent direction of the barrel wall at the bottom of the water bucket 4. Furthermore, the cross section of the outlet 6 is perpendicular to the tangent direction of the side of the water bucket 4. The total area of ​​the outlet 6 is less than 0.2 times the area of ​​the outlet of the water outlet section 5. During operation, because the water flow flowing down from the cyclone plate dust collector itself is rotating, the outlet 6 at the bottom of the water bucket 4 is designed to flow out along the tangent direction of the wall, so that it is not easy for dust to settle at the bottom of the outer water bucket 4, and the dust in the water flow can be directly taken out to avoid its deposition in the outer water pipe, thereby ensuring the normal operation of the system. During operation, the water flowing out of the water outlet at the bottom of the cyclone plate tower first flows into the outer jacket water bucket 4, and then a part of it flows out from the tangential outlet 6 at the bottom side, and most of it overflows from the top of the water bucket 4. In this way, the liquid level at the water outlet at the bottom of the cyclone plate tower can be always kept at the height of the upper edge of the outer jacket water bucket 4 during operation, thereby preventing the external air from being sucked into the dust collector from the water outlet at the bottom of the cyclone plate tower.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector, characterized in that: The invention comprises a dust collector body (1), a water tank (2) and a water pump (3); a water outlet section (5) at the bottom of the dust collector body (1) is located in the water tank (2); two ends of the water pump (3) are respectively connected to the dust collector body (1) and the water tank (2); the water pump (3) extracts water from the water tank (2) and pumps it into the dust collector body (1), so that the water is mixed with dust in the dust collector body (1) and then flows into the water tank (2); the liquid level of the water in the water tank (2) is higher than the height of the water outlet of the water outlet section (5); a water bucket (4) is arranged outside the water outlet section (5), and the bottom of the water bucket (4) is connected to the water tank (2).

2. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 1, characterized in that: A plurality of outlets (6) are provided at the bottom of the side of the water bucket (4).

3. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 2, characterized in that: The cross section of the outlet (6) is perpendicular to the tangent direction of the side surface of the water bucket (4).

4. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 2, characterized in that: The outlets (6) are provided with four.

5. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 4, characterized in that: The four outlets (6) are evenly arranged along the circumference of the water bucket (4).

6. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 1, characterized in that: The water bucket (4) is arranged concentrically with the water outlet section (5).

7. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 1, characterized in that: The total area of ​​the outlet (6) is less than 0.2 times the area of ​​the outlet of the water outlet section (5).

8. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 1, characterized in that: The difference between the height H of the water bucket (4) and the height h of the water outlet section (5) is greater than the height of the water column of the negative pressure inside the dust collector body (1).

9. The device for preventing air leakage at the bottom drain port of a mobile cyclone plate dust collector according to claim 1, characterized in that: The inner diameter D of the water bucket (4) is equal to √2 times the inner diameter d of the water outlet section (5).

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