Spraying type desulfurizing tower

Abstract

The utility model relates to a spraying type desulfurizing tower which comprises a lower desulfurizing tower body, an upper desulfurizing tower body is fixedly connected to the top of the lower desulfurizing tower body, an air inlet is fixedly connected to one side of the upper desulfurizing tower body, an air outlet is fixedly connected to the top of the upper desulfurizing tower body, and a water conveying pipe is fixedly connected to one side of the lower desulfurizing tower body. An electric water pump is fixedly connected to one side of the conveying water pipe, a spraying pipe is fixedly connected to the top end of the conveying water pipe, a spraying head is fixedly connected to the bottom of the spraying pipe, a first filtering plate is fixedly connected to the inner wall of the air inlet, and a top box is fixedly connected to the top of the air inlet; and a cleaning device used for cleaning dust of the first filter plate is arranged in the top box, the bottom of the air inlet is fixedly connected with a dust collecting box, and one side of the dust collecting box is movably connected with a dust collecting drawer. The device has the effects that the condition that the filter screen is blocked by impurities is reduced, sufficient desulfurization is ensured, and the desulfurization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal power plant desulfurization, and in particular to a spray type desulfurization tower. BACKGROUND

[0002] In the process of industrial production, waste gas emission is an inevitable problem, and harmful substances such as sulfides contained therein pose a serious threat to the environment and human health. In order to reduce the emission of these harmful substances, spray type desulfurization towers are widely used as an effective waste gas treatment equipment. However, the traditional spray type desulfurization tower has some problems when treating waste gas containing a large amount of dust and impurities.

[0003] Waste gas usually contains a large amount of dust, particulate matter and other impurities, and the presence of these impurities will seriously affect the full reaction of sulfur in waste gas with spray limestone slurry. Limestone slurry needs to fully contact with sulfur in waste gas and react chemically to effectively remove sulfur from waste gas. However, when waste gas contains a large amount of impurities, these impurities will adhere to the spray surface of limestone slurry, forming a layer of barrier, making it difficult for limestone slurry to fully contact with sulfur in waste gas, thereby reducing the desulfurization efficiency.

[0004] In order to solve this problem, the general practice is to install a filter screen at the inlet of the desulfurization tower for pretreatment to remove most of the dust and impurities in the waste gas. However, this approach, although to some extent, improves the contact conditions between waste gas and limestone slurry, but after long-term operation, the filter holes on the filter screen are easily clogged by impurities, resulting in a gradual decline in filtration effect. Once the filter screen is severely clogged, not only will it affect the flow of waste gas, but it will also further reduce the desulfurization efficiency, affecting the normal operation of the desulfurization tower. SUMMARY

[0005] In order to ensure that impurities do not clog the filter screen and ensure that waste gas flows freely and improves desulfurization efficiency, the present application provides a spray type desulfurization tower.

[0006] The spray type desulfurization tower provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of spray desulfurization tower, including desulfurization lower tower body, the top of the desulfurization lower tower body is fixedly connected with desulfurization upper tower body, the side of desulfurization upper tower body is fixedly connected with air inlet, and the top of desulfurization upper tower body is fixedly connected with air outlet, the side of desulfurization lower tower body is fixedly connected with conveying water pipe, the side of conveying water pipe is fixedly connected with electric water pump, and the top of conveying water pipe is fixedly connected with spray pipe, the bottom of spray pipe is fixedly connected with spray head, the inner wall of air inlet is fixedly connected with first filter plate, and the top of air inlet is fixedly connected with top box, and the inside of top box is provided with cleaning device for cleaning dust to first filter plate, the bottom of air inlet is fixedly connected with dust collection box, and the side of dust collection box is movably connected with dust collection drawer.

[0008] Preferably, the spray pipe is composed of a connecting pipe and three water spraying pipes, and the connecting pipe and the three water spraying pipes are fixedly connected together in an E shape, the top end of the conveying water pipe is fixedly connected to the middle part of the connecting pipe, and the three water spraying pipes are fixedly connected to the inner wall of the desulfurization upper tower body.

[0009] Preferably, the spray head is provided with three groups, and the top end of each of the three groups of spray heads is fixedly connected to the bottom of the three water spraying pipes of the spray pipe, and the inner wall of the desulfurization upper tower body is fixedly connected with a second filter plate above the three water spraying pipes of the spray pipe.

[0010] Preferably, a groove is formed in the top of the air inlet corresponding to the bottom of the top box, the inner space of the air inlet is communicated with the inner space of the top box through the groove, the inner wall of the bottom of the air inlet is provided with an inclined chute, and the inner space of the air inlet is communicated with the inner space of the dust collection box through the inclined chute.

[0011] Preferably, the cleaning device comprises a fixed sliding rail, a fixed plate, a sliding block, a connecting rod, a dust cleaning brush, a driving motor, a centrifugal rotating plate and a linkage rod, the top inside of the top box is fixedly connected with the fixed sliding rail, the middle part of the fixed sliding rail is fixedly connected with the fixed plate, the inner wall of the fixed sliding rail is slidably connected with the sliding block, the bottom of the sliding block is fixedly connected with the connecting rod, the bottom of the connecting rod is fixedly connected with the dust cleaning brush, the top of the top box is fixedly connected with the driving motor, the movable end of the driving motor is fixedly connected with the centrifugal rotating plate through the top box and the fixed plate, and the side of the centrifugal rotating plate is movably connected with the linkage rod.

[0012] Preferably, a sliding groove is formed in the side of the linkage rod, an active groove is formed in the side of the linkage rod corresponding to one end of the sliding groove, and the end of the linkage rod is movably connected to the bottom of the fixed plate through the fixed rod.

[0013] Preferably, the centrifugal rotating plate is composed of a rotating wheel and a centrifugal rod, the top end of the centrifugal rod is fixedly connected to the bottom of the rotating wheel, the bottom end of the centrifugal rod is movably connected inside the sliding groove formed in the linkage rod, and the middle part of the connecting rod is movably connected inside the active groove formed in the linkage rod.

[0014] Compared with the prior art, the desulfurization tower has the advantages that:

[0015] The first filter plate and the second filter plate are arranged in the desulfurization tower, and a multi-stage filtering system is formed. The first filter plate can preliminarily filter dust and impurities in the waste gas, prevents the dust and impurities from entering the desulfurization reaction zone, and ensures smooth desulfurization reaction. The second filter plate further filters the limestone slurry that may be entrained, and ensures that the discharged gas is clean and free of residues.

[0016] The cleaning device is arranged in the air inlet, and the cooperation of the driving motor, the centrifugal rotating plate and the linkage rod and other components can realize automatic cleaning of the first filter plate. This design avoids the inconvenience of manual cleaning, ensures continuous and effective operation of the first filter plate, prolongs the service life of the first filter plate, ensures the sufficiency of the desulfurization reaction, and improves the desulfurization efficiency.

[0017] The dust collection box and the dust collection drawer are arranged, so that the cleaned impurities can be conveniently collected and treated. By pulling out the dust collection drawer, the user can easily remove the impurities, and the inside of the desulfurization tower is kept clean and sanitary. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall view of the utility model;

[0019] Figure 2 is the internal view of the desulfurization upper tower body of the utility model;

[0020] Figure 3 is the internal view of the air inlet of the utility model;

[0021] Figure 4 is the structure view of the cleaning device of the utility model.

[0022] The drawings show that: 1, the desulfurization lower tower body; 2, the desulfurization upper tower body; 3, the air inlet; 4, the air outlet; 5, the water conveying pipe; 6, the electric water pump; 7, the spray pipe; 8, the spray head; 9, the first filter plate; 10, the second filter plate; 11, the dust collection box; 12, the dust collection drawer; 13, the top box; 14, the fixed sliding rail; 15, the fixed plate; 16, the sliding block; 17, the connecting rod; 18, the dust cleaning brush; 19, the driving motor; 20, the centrifugal rotating plate; 21, the linkage rod; 22, the fixed rod. DETAILED DESCRIPTION

[0023] The following will be described in detail with reference to the drawings Figures 1-4 The application will be further described in detail.

[0024] The embodiment of the application discloses a spray type desulfurization tower.

[0025] Reference Figures 1-4The utility model provides a kind of spray desulfurization tower, including desulfurization lower tower body 1, the top of desulfurization lower tower body 1 is fixedly connected with desulfurization upper tower body 2, one side of desulfurization upper tower body 2 is fixedly connected with air inlet 3, and the top of desulfurization upper tower body 2 is fixedly connected with air outlet 4, one side of desulfurization lower tower body 1 is fixedly connected with water delivery pipe 5, one side of water delivery pipe 5 is fixedly connected with electric water pump 6, and the top of water delivery pipe 5 is fixedly connected with spray pipe 7, the bottom of spray pipe 7 is fixedly connected with spray head 8, the inner wall of air inlet 3 is fixedly connected with first filter plate 9, and the top of air inlet 3 is fixedly connected with top box 13, and the inside of top box 13 is provided with cleaning device for cleaning dust of first filter plate 9, the bottom of air inlet 3 is fixedly connected with dust collection box 11, one side of dust collection box 11 is movably connected with dust collection drawer 12.

[0026] Further, spray pipe 7 is composed of connecting pipe and three water spraying pipes, and the connecting pipe and the three water spraying pipes are fixedly connected together in E shape, and the top of water delivery pipe 5 is fixedly connected to the middle of the connecting pipe, and the three water spraying pipes are fixedly connected to the inner wall of desulfurization upper tower body 2.

[0027] Further, spray head 8 is provided with three groups, and the top of the three groups of spray head 8 is fixedly connected to the bottom of the three water spraying pipes of spray pipe 7, and the inner wall of desulfurization upper tower body 2 is fixedly connected with second filter plate 10 above the three water spraying pipes of spray pipe 7.

[0028] Further, the top of air inlet 3 is provided with a groove corresponding to the bottom of top box 13, and the internal space of air inlet 3 is communicated together with the internal space of top box 13 through the groove, and the bottom inner wall of air inlet 3 is provided with an inclined chute, and the internal space of air inlet 3 is communicated together with the internal space of dust collection box 11 through the inclined chute.

[0029] Further, the cleaning device includes fixed slide rail 14, fixed plate 15, sliding block 16, connecting rod 17, dust cleaning brush 18, driving motor 19, centrifugal rotating plate 20 and linkage rod 21, the top of top box 13 is fixedly connected with fixed slide rail 14, the middle of fixed slide rail 14 is fixedly connected with fixed plate 15, and the inner wall of fixed slide rail 14 is slidably connected with sliding block 16, the bottom of sliding block 16 is fixedly connected with connecting rod 17, the bottom of connecting rod 17 is fixedly connected with dust cleaning brush 18, the top of top box 13 is fixedly connected with driving motor 19, the movable end of driving motor 19 is fixedly connected with centrifugal rotating plate 20 penetrating through top box 13 and fixed plate 15, and one side of centrifugal rotating plate 20 is movably connected with linkage rod 21.

[0030] Further, one side of linkage rod 21 is provided with a sliding groove, and one end of one side of linkage rod 21 corresponding to the sliding groove is provided with a movable slot, and one end of linkage rod 21 is movably connected to the bottom of fixed plate 15 through fixed rod 22.

[0031] Further, the centrifugal rotating plate 20 is composed of a rotating wheel and a centrifugal rod, the top end of the centrifugal rod is fixedly connected to the bottom of the rotating wheel, the bottom end of the centrifugal rod is movably connected inside the sliding groove of the linkage rod 21, and the middle part of the connecting rod 17 is movably connected inside the movable groove of the linkage rod 21.

[0032] In use, first, the exhaust gas enters the inside of the desulfurization upper tower body 2 through the gas inlet 3, and then the dust and impurities in the exhaust gas are filtered by the first filter plate 9 when the exhaust gas passes through the first filter plate 9 inside the gas inlet 3, so that the subsequent desulfurization reaction of the exhaust gas is more sufficient. When the filtered exhaust gas enters the inside of the desulfurization upper tower body 2, the limestone slurry inside the desulfurization lower tower body 1 is extracted by the water conveying pipe 5 by starting the electric water pump 6, and then conveyed to the inside of the spray pipe 7. The limestone slurry is sprayed by the spray head 8 fixedly installed at the bottom of the spray pipe 7 to spray the filtered exhaust gas. The sprayed limestone slurry absorbs the sulfur dioxide of the filtered exhaust gas, so that the exhaust gas is desulfurized. Then the desulfurized exhaust gas is discharged from the top of the gas outlet 4 through the second filter plate 10, and the second filter plate 10 is used to filter the possibly entrained limestone slurry to ensure that the discharged gas is clean and residue-free.

[0033] When the first filter plate 9 filters impurities in the exhaust gas for a long time, the impurities may block the filter holes on the first filter plate 9. Then, the linkage rod 21 is driven to swing around the fixed rod 22 by the sliding groove at one end of the centrifugal rod of the centrifugal rotating plate 20, the other end of the linkage rod 21 drives the sliding block 16 to slide back and forth inside the fixed sliding rail 14 through the connecting rod 17, and the impurities on the first filter plate 9 are swept back and forth by the dust cleaning brush 18 driven by the bottom end of the connecting rod 17. The swept impurities enter the dust collection drawer 12 inside the dust collection box 11 through the inclined sliding groove at the bottom of the gas inlet 3. The impurities are treated by pulling out the dust collection drawer 12 from the inside of the dust collection box 11.

[0034] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, all equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A spray-type desulfurizing tower characterized by comprising: The utility model provides a desulfurization tower, which comprises a desulfurization lower tower body (1), a desulfurization upper tower body (2) fixedly connected to the top of the desulfurization lower tower body (1), an air inlet (3) fixedly connected to one side of the desulfurization upper tower body (2), an air outlet (4) fixedly connected to the top of the desulfurization upper tower body (2), a water conveying pipe (5) fixedly connected to one side of the desulfurization lower tower body (1), an electric water pump (6) fixedly connected to one side of the water conveying pipe (5), a spraying pipe (7) fixedly connected to the top end of the water conveying pipe (5), a spraying head (8) fixedly connected to the bottom of the spraying pipe (7), a first filter plate (9) fixedly connected to the inner wall of the air inlet (3), a top box (13) fixedly connected to the top of the air inlet (3), and a cleaning device arranged in the top box (13) for cleaning dust on the first filter plate (9), and a dust collecting box (11) fixedly connected to the bottom of the air inlet (3), wherein the dust collecting box (11) is movably connected to one side of a dust collecting drawer (12).

2. A spray-type desulfurizing tower according to claim 1, wherein: The spraying pipe (7) is composed of a connecting pipe and three water spraying pipes, and the connecting pipe and the three water spraying pipes are fixedly connected together in an E shape, the top end of the water conveying pipe (5) is fixedly connected to the middle of the connecting pipe, and the three water spraying pipes all penetrate through one side of the desulfurization upper tower body (2) and are fixedly connected to the inner wall of the desulfurization upper tower body (2).

3. A spray-type desulfurizing tower according to claim 2, wherein: The spraying head (8) is provided with three groups, and the top ends of the three groups of spraying heads (8) are fixedly connected to the bottoms of the three water spraying pipes of the spraying pipe (7), and the inner wall of the desulfurization upper tower body (2) is fixedly connected with a second filter plate (10) above the three water spraying pipes of the spraying pipe (7).

4. A spray-type desulfurizing tower according to claim 1, wherein: A groove is formed in the top of the air inlet (3) corresponding to the bottom of the top box (13), the inner space of the air inlet (3) is communicated with the inner space of the top box (13) through the groove, an inclined chute is formed in the inner wall of the bottom of the air inlet (3), and the inner space of the air inlet (3) is communicated with the inner space of the dust collecting box (11) through the inclined chute.

5. A spray-type desulfurizing tower according to claim 1, wherein: The cleaning device comprises a fixed sliding rail (14), a fixed plate (15), a sliding block (16), a connecting rod (17), a dust cleaning brush (18), a driving motor (19), a centrifugal rotating plate (20) and a linkage rod (21), the top of the top box (13) is fixedly connected with the fixed sliding rail (14), the middle of the fixed sliding rail (14) is fixedly connected with the fixed plate (15), the inner wall of the fixed sliding rail (14) is slidably connected with the sliding block (16), the bottom of the sliding block (16) is fixedly connected with the connecting rod (17), the bottom of the connecting rod (17) is fixedly connected with the dust cleaning brush (18), the top of the top box (13) is fixedly connected with the driving motor (19), the movable end of the driving motor (19) is fixedly connected with the centrifugal rotating plate (20) penetrating through the top box (13) and the fixed plate (15), and one side of the centrifugal rotating plate (20) is movably connected with the linkage rod (21).

6. A spray-type desulfurizing tower according to claim 5, wherein: One side of the linkage rod (21) is provided with a sliding groove, one end of the linkage rod (21) corresponding to the sliding groove is provided with a movable groove, and one end of the linkage rod (21) is movably connected to the bottom of the fixed plate (15) through a fixed rod (22).

7. A spray-type desulfurizing tower according to claim 6, wherein: The centrifugal rotating plate (20) is composed of a rotating wheel and a centrifugal rod, the top end of the centrifugal rod is fixedly connected to the bottom of the rotating wheel, the bottom end of the centrifugal rod is movably connected to the sliding groove of the linkage rod (21), and the middle part of the connecting rod (17) is movably connected to the movable groove of the linkage rod (21).

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