Desulfurization and denitrification tower convenient for cleaning filter screen

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a desulfurization and denitrification tower convenient for cleaning a filter screen, which comprises a tower body, support legs, a gas inlet pipe and a gas outlet pipe, a filter device is arranged in the tower body, and the filter device comprises a cleaning unit, a flushing unit and a spraying unit. According to the desulfurization and denitrification tower convenient to clean the filter screen, the cleaning unit is arranged, a telescopic piece telescopically pushes a connecting plate to drive a brush to move left and right along a guide rod, impurities attached to the surface of the filter screen are cleaned, and therefore the situation that the filter screen is blocked, and the waste gas desulfurization and denitrification efficiency is affected is avoided; the problems that impurities attached to the surface of a filter screen cannot be cleaned in the using process, the filter screen is blocked, and the waste gas treatment efficiency is affected in the background technology are solved, a washing unit is arranged, a water solution in a water tank is introduced into a first water inlet pipe through a first pump body, and the water solution is sprayed out of a first spray head through a connecting pipe to wash the filter screen; the filter screen cleaning quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a desulfurization and denitration tower which is convenient for cleaning a filter screen. Background Art

[0002] In recent years, the problem of air pollution has become increasingly serious. With the continuous increase in energy demand, the pollution problem caused by flue gas emissions has become increasingly prominent. The problem of atmospheric environmental pollution control has continued to attract widespread attention. Industrial flue gas is the main factor in the formation of acid rain in the air pollution, among which SO2 and NO2 emissions are key factors. Therefore, the control of SO2 and NO2 is the focus of flue gas treatment, and the exhaust gas needs to be desulfurized and de-compounded.

[0003] The existing desulfurization and denitrification towers are not easy to move as a whole, and the interior is not easy to clean, it is not easy to observe the internal filtration conditions in real time, and the internal spray solution is not easy to recycle, reducing resource waste.

[0004] For example, a desulfurization and denitrification tower disclosed in Chinese patent CN220194467U is convenient for storing aqueous solutions by setting a water storage tank. With the cooperation of the partition and the filter screen, it is convenient to filter and intercept large particles. With the cooperation of the water pump, the aqueous solution is recycled to reduce resource waste. A connecting cylinder is provided to facilitate the connection between the filter cylinder and the water storage tank. With the cooperation of the cylinder, filter cotton is installed inside to facilitate the desulfurization and denitrification adsorption of the passing gas. A top cover is provided and a spray pipe is installed. With the cooperation of multiple spray heads, it is convenient to allow the gas to fully contact with the solution for desulfurization and denitrification. The transparent window is installed to facilitate real-time observation of the filtering status of the internal filter cotton and timely internal cleaning operations.

[0005] However, the device is unable to clean the impurities attached to the filter surface during use, causing clogging of the filter and affecting the exhaust gas treatment efficiency.

[0006] For this reason, we urgently need to provide a desulfurization and denitrification tower that is easy to clean the filter. Utility Model Content

[0007] The utility model aims to provide a desulfurization and denitrification tower which is convenient for cleaning the filter, so as to solve the problem in the above-mentioned background technology that impurities attached to the surface of the filter cannot be cleaned during use, causing clogging of the filter and affecting the efficiency of exhaust gas treatment.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization and denitrification tower which is convenient for cleaning the filter screen, comprising a tower body, support legs, an air inlet pipe and an air outlet pipe, wherein the support legs are fixedly installed on the left and right sides of the bottom of the tower body, the air inlet pipe is connected to the lower end of the right side of the tower body, the air outlet pipe is connected to the top of the tower body, and a filtering device is arranged inside the tower body.

[0009] The filtering device comprises a cleaning unit, a flushing unit and a spraying unit. The cleaning unit is arranged at the lower end of the tower body, the flushing unit is arranged at the lower end of the tower body, and the spraying unit is arranged at the upper end of the tower body.

[0010] The cleaning unit includes a filter, a telescopic part, a guide rod, and a connecting plate brush. The filter is installed at the lower end of the tower body, the telescopic part is fixedly installed on the right side of the tower body below the filter, the guide rod is fixedly installed on the front and rear sides of the lower end of the tower body, the connecting plate is installed on the outside of the guide rod, and the brush is installed on the top of the connecting plate.

[0011] Preferably, the flushing unit includes a water tank, a pump body, a water inlet pipe, a connecting pipe, a nozzle and a fixed block, the water tank is fixedly installed on the left side of the tower body, the pump body is installed at the bottom of the water tank, the water inlet pipe is connected to the output end of the pump body and extends to the inside of the tower body, the connecting pipe is connected to the end of the water inlet pipe away from the pump body, the nozzle is installed on the top of the connecting pipe, and the fixed block is fixedly installed on the left side of the connecting plate.

[0012] Preferably, the spray unit includes a pump body 2, a water inlet pipe 2, an annular tube, a nozzle 2 and filter cotton, the pump body 2 is installed on the top of the water tank, one end of the water inlet pipe 2 is connected to the output end of the pump body 2, the annular tube is installed at the upper end of the tower body, the nozzle 2 is installed at the bottom of the annular tube, and the filter cotton is installed inside the tower body between the nozzle 2 and the filter net.

[0013] Preferably, a mounting hole is provided inside the fixing block, and the lower end of the connecting pipe is fixedly mounted inside the fixing block, so that the connecting pipe is fixed by the fixing block.

[0014] Preferably, the output end of the telescopic member is fixedly connected to one side of the connecting plate, and the telescopic member pushes the connecting plate to drive the brush to move left and right along the guide rod to clean impurities adhered to the surface of the filter, thereby avoiding clogging of the filter and affecting the efficiency of exhaust gas desulfurization and denitrification.

[0015] Preferably, the end of the water inlet pipe 2 away from the pump body 2 is connected to the annular tube, so that the aqueous solution enters the annular tube along the water inlet pipe 2 under the action of the pump body 2, and is then sprayed out to the surface of the filter cotton by the nozzle 2, so that the filter cotton is mixed with the aqueous solution to fully desulfurize and denitrify the passing gas.

[0016] Preferably, the second nozzle is evenly distributed at the bottom of the annular tube, so that the filter cotton is fully mixed with the aqueous solution everywhere, thereby improving the desulfurization and denitrification effects.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The desulfurization and denitrification tower, which is convenient for cleaning the filter, is provided with a cleaning unit. The telescopic part pushes the connecting plate to drive the brush to move left and right along the guide rod to clean the impurities adhered to the surface of the filter, thereby avoiding clogging of the filter and affecting the desulfurization and denitrification efficiency of the exhaust gas. This solves the problem in the background technology that the impurities adhered to the surface of the filter cannot be cleaned during use, causing clogging of the filter and affecting the exhaust gas treatment efficiency.

[0019] 2. The desulfurization and denitrification tower, which is convenient for cleaning the filter, is provided with a flushing unit, and the aqueous solution in the water tank is passed into the water inlet pipe through the pump body, and then sprayed out from the nozzle through the connecting pipe to flush the filter, thereby improving the cleaning quality of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the tower body of the utility model;

[0022] Figure 3 This is a schematic diagram of the cleaning unit structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the partial structure of the flushing unit of the utility model.

[0024] In the figure: 1. tower body; 2. supporting legs; 3. air inlet pipe; 4. air outlet pipe; 501. filter screen; 502. telescopic member; 503. guide rod; 504. connecting plate; 505. brush; 601. water tank; 602. pump body 1; 603. water inlet pipe 1; 604. connecting pipe; 605. nozzle 1; 606. fixing block; 701. pump body 2; 702. water inlet pipe 2; 703. annular pipe; 704. nozzle 2; 705. filter cotton. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A desulfurization and denitration tower for easy cleaning of a filter screen comprises a tower body 1, a support leg 2, an air inlet pipe 3 and an air outlet pipe 4, wherein the support leg 2 is fixedly mounted on the left and right sides of the bottom of the tower body 1, the air inlet pipe 3 is connected to the lower right end of the tower body 1, the air outlet pipe 4 is connected to the top of the tower body 1, and a filtering device is arranged inside the tower body 1;

[0029] The filtering device includes a cleaning unit, a flushing unit and a spraying unit. The cleaning unit is arranged at the lower end of the tower body 1, the flushing unit is arranged at the lower end of the tower body 1, and the spraying unit is arranged at the upper end of the tower body 1.

[0030] The cleaning unit includes a filter 501, a telescopic member 502, a guide rod 503, a connecting plate 504 and a brush 505. The filter 501 is installed at the lower end of the tower body 1 to filter impurities in the exhaust gas to prevent impurities from accumulating inside the filter cotton 705 and affecting the exhaust gas treatment efficiency of the filter cotton 705. The telescopic member 502 is fixedly installed on the right side of the tower body 1 below the filter 501. The telescopic member 502 is an electric push rod. The output end of the telescopic member 502 is fixedly connected to one side of the connecting plate 504. The connecting plate 504 is pushed by the telescopic member 502 to drive the brush 505 to move left and right along the guide rod 503 to clean impurities adhered to the surface of the filter 501, thereby preventing the filter 501 from being blocked and affecting the exhaust gas desulfurization and denitrification efficiency. The guide rod 503 is fixedly installed on the front and rear sides of the lower end of the tower body 1, the connecting plate 504 is installed on the outside of the guide rod 503, and the brush 505 is installed on the top of the connecting plate 504.

[0031] The spray unit includes a pump body 701, a water inlet pipe 702, an annular pipe 703, a nozzle 704 and filter cotton 705. The pump body 701 is installed on the top of the water tank 601, one end of the water inlet pipe 702 is connected to the output end of the pump body 701, and the end of the water inlet pipe 702 away from the pump body 701 is connected to the annular pipe 703, so that the aqueous solution enters the annular pipe 703 along the water inlet pipe 702 under the action of the pump body 701, and is then sprayed to the surface of the filter cotton 705 by the nozzle 704, so that the filter cotton 705 is mixed with the aqueous solution to fully desulfurize and denitrify the passing gas. The annular pipe 703 is installed at the upper end of the tower body 1, the nozzle 704 is installed at the bottom of the annular pipe 703, and the filter cotton 705 is installed inside the tower body 1 between the nozzle 704 and the filter 501, and the sulfur and nitrate in the exhaust gas are adsorbed by the filter cotton 705.

[0032] Embodiment 2:

[0033] On the basis of Example 1: the flushing unit includes a water tank 601, a pump body 602, a water inlet pipe 603, a connecting pipe 604, a nozzle 605 and a fixed block 606. The water tank 601 is fixedly installed on the left side of the tower body 1, the pump body 602 is installed at the bottom of the water tank 601, the water inlet pipe 603 is connected to the output end of the pump body 602 and extends to the inside of the tower body 1, the connecting pipe 604 is connected to the end of the water inlet pipe 603 away from the pump body 602, the nozzle 605 is installed on the top of the connecting pipe 604, the fixed block 606 is fixedly installed on the left side of the connecting plate 504, a mounting hole is opened inside the fixed block 606, the lower end of the connecting pipe 604 is fixedly installed inside the fixed block 606, and the connecting pipe 604 is fixed by the fixed block 606.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: the second nozzle 704 is evenly distributed at the bottom of the annular tube 703, so that the filter cotton 705 is fully mixed with the aqueous solution at all places, thereby improving the desulfurization and denitrification effects.

[0036] When in use, the waste gas is introduced into the tower body 1 through the air inlet pipe 3, and the pump body 2 701 is started at the same time, so that the aqueous solution enters the annular pipe 703 along the water inlet pipe 2 702 under the action of the pump body 2 701, and then is sprayed to the surface of the filter cotton 705 by the nozzle 2 704, so that the filter cotton 705 is mixed with the aqueous solution. The waste gas entering is filtered by the filter net 501, and then passes through the filter cotton 705 for desulfurization and denitrification adsorption treatment. The treated waste gas is discharged from the outlet pipe 4. When the filter needs to be When cleaning the net 501, start the pump body 602 and the telescopic part 502, and pass the aqueous solution in the water tank 601 into the water inlet pipe 603 through the pump body 602, and spray it out from the nozzle 605 through the connecting pipe 604 to flush the filter net 501. At the same time, cooperate with the telescopic part 502 to push the connecting plate 504 to drive the brush 505 to move left and right along the guide rod 503 to flush and scrub different positions of the filter net 501 to avoid clogging of the filter net 501 and affect the exhaust gas treatment efficiency.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A desulfurization and denitrification tower for facilitating the cleaning of a filter screen, comprising a tower body (1), a support leg (2), an air inlet pipe (3) and an air outlet pipe (4), wherein the support leg (2) is fixedly mounted on the left and right sides of the bottom of the tower body (1), the air inlet pipe (3) is connected to the lower right end of the tower body (1), and the air outlet pipe (4) is connected to the top of the tower body (1), characterized in that: A filtering device is arranged inside the tower body (1); The filtering device comprises a cleaning unit, a flushing unit and a spraying unit, wherein the cleaning unit is arranged at the lower end of the interior of the tower body (1), the flushing unit is arranged at the lower end of the interior of the tower body (1), and the spraying unit is arranged at the upper end of the interior of the tower body (1); The cleaning unit comprises a filter (501), a telescopic member (502), a guide rod (503), a connecting plate (504) and a brush (505); the filter (501) is mounted at the lower end of the tower body (1); the telescopic member (502) is fixedly mounted on the right side of the tower body (1) below the filter (501); the guide rod (503) is fixedly mounted on the front and rear sides of the lower end of the tower body (1); the connecting plate (504) is mounted on the outside of the guide rod (503); and the brush (505) is mounted on the top of the connecting plate (504).

2. A desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 1, characterized in that: The flushing unit comprises a water tank (601), a pump body (602), a water inlet pipe (603), a connecting pipe (604), a nozzle (605) and a fixing block (606); the water tank (601) is fixedly installed on the left side of the tower body (1); the pump body (602) is installed at the bottom of the water tank (601); the water inlet pipe (603) is connected to the output end of the pump body (602) and extends to the inside of the tower body (1); the connecting pipe (604) is connected to an end of the water inlet pipe (603) away from the pump body (602); the nozzle (605) is installed on the top of the connecting pipe (604); and the fixing block (606) is fixedly installed on the left side of the connecting plate (504).

3. A desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 1, characterized in that: The spray unit comprises a second pump body (701), a second water inlet pipe (702), an annular pipe (703), a second nozzle (704) and a filter cotton (705); the second pump body (701) is installed on the top of the water tank (601); one end of the second water inlet pipe (702) is connected to the output end of the second pump body (701); the annular pipe (703) is installed at the upper end of the tower body (1); the second nozzle (704) is installed at the bottom of the annular pipe (703); and the filter cotton (705) is installed inside the tower body (1) and is located between the second nozzle (704) and the filter net (501).

4. A desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 2, characterized in that: A mounting hole is provided inside the fixing block (606), and the lower end of the connecting pipe (604) is fixedly mounted inside the fixing block (606).

5. The desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 1 is characterized in that: The output end of the telescopic member (502) is fixedly connected to one side of the connecting plate (504).

6. A desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 3, characterized in that: One end of the second water inlet pipe (702) away from the second pump body (701) is connected to the annular pipe (703).

7. A desulfurization and denitrification tower that is convenient for cleaning the filter screen according to claim 3, characterized in that: The second nozzle (704) is evenly distributed at the bottom of the annular tube (703).

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