Water film dust removal spray system

Abstract

The utility model discloses a water film dust removal spraying system, including cylinder, overflow tank, compensation spraying device, overflow tank is located in the top of cylinder, is equipped with the first water inlet pipe of end in overflow tank department on the cylinder, compensation spraying device is located in the bottom of overflow tank in cylinder, and compensation spraying device includes first annular pipe, second water inlet pipe and first shower nozzle, and first annular pipe sets up horizontally, and second water inlet pipe passes through cylinder and is connected with first annular pipe, and first shower nozzle is evenly arranged in the one side of first annular pipe outer surface to the inner wall of cylinder. The water film dust removal spraying system of the utility model has the advantages of conveniently carrying out compensation spraying to the water film generated by the overflow tank, improving the capture efficiency of the water film to dust particles and reducing the influence of the levelness of the cylinder.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment equipment, and in particular to a water film dust removal spray system. Background Technology

[0002] The spray structure is the core component of a water film dust collector. Its main function is to form a water film on the inner wall of the collector's cylinder to capture dust particles in the dust-laden flue gas. Conventional vertical cyclone water film dust collectors use an overflow trough to form a water film through overflow. This structure requires a high degree of levelness of the cylinder. If it is slightly tilted, the water film will be thicker on one side than the other, and the thinner water film will not be effective in capturing dust particles. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a water film dust removal spray system, which facilitates compensating spraying of the water film generated by the overflow tank, improves the water film's dust particle capture efficiency, and reduces the impact of the cylinder's levelness.

[0004] The technical solution of this utility model is as follows:

[0005] A water film dust removal spray system includes a cylinder, an overflow trough, and a compensating spray device. The overflow trough is located at the top of the cylinder, and the cylinder has a first water inlet pipe with its end located at the overflow trough. The compensating spray device is located at the bottom of the overflow trough inside the cylinder and includes a first annular pipe, a second water inlet pipe, and a first nozzle. The first annular pipe is horizontally arranged, the second water inlet pipe passes through the cylinder and connects to the first annular pipe, and the first nozzle is evenly distributed on the side of the first annular pipe facing the inner wall of the cylinder.

[0006] In a further technical solution, the overflow trough includes an inner ring wall, an outer ring wall, a bottom ring, and a top ring. The outer ring wall is located outside the inner ring wall, with its bottom side flush with the inner ring wall, and the top side of the inner ring wall is higher than the outer ring wall. The bottom ring is connected to the bottom side of the inner ring wall on its inner side and to the bottom side of the outer ring wall on its outer side, forming an annular water trough. The top ring is located on the top side of the inner ring wall, and its outer side is connected to the inner wall of the cylinder.

[0007] In a further technical solution, a rinsing device is also included, which is disposed inside the cylinder. The rinsing device includes a second annular pipe, a second nozzle, and a third water inlet pipe. The second annular pipe is horizontally arranged, and the third water inlet pipe passes through the cylinder and is connected to the second annular pipe. The second nozzles are evenly arranged outside the second annular pipe and facing the inner wall of the cylinder. The second nozzles are arranged in groups of at least two, and each group of second nozzles has a different tilt angle relative to the inner wall of the cylinder.

[0008] In a further technical solution, a circulation component is also included, which includes a sedimentation tank and a circulation pump. A sewage pipe is provided at the bottom of the cylinder, the end of which is connected to the input end of the sedimentation tank, and the output end of the sedimentation tank is connected to the first inlet pipe through the circulation pump.

[0009] In a further technical solution, the bottom of the bottom ring is provided with a first support rod, the first annular tube is connected to the bottom end of the first support rod, and a second support rod is provided between the first annular tube and the second annular tube; the second water inlet pipe passes through the cylinder and the inner ring wall and connects to the first annular tube, and the third water inlet pipe passes through the cylinder and the inner ring wall and connects to the second annular tube.

[0010] In a further technical solution, the outer bottom of the outer ring wall is provided with an annular and downwardly inclined edge.

[0011] In a further technical solution, the first nozzle is a spiral nozzle.

[0012] The beneficial effects of this utility model are:

[0013] 1. Based on the water film formed on the inner wall of the cylinder by overflow in the overflow tank, a compensating spray device is added. The nozzles of the compensating spray device spray and compensate the water film, ensuring the thickness of the water film, improving the water film's capture efficiency for dust particles, and reducing the impact of the cylinder's levelness.

[0014] 2. A flushing device has been installed. The flushing device is used after the water film dust collector is shut down and can be used to flush most of the residual dust and mud on the inner wall of the cylinder.

[0015] 3. The water after water film dust removal can enter the sedimentation tank through the sewage pipe for simple separation treatment, and then be used to feed water into the overflow tank through the first water inlet pipe. The overflow tank is not easy to clog and is convenient for recycling.

[0016] 4. The second and third water inlet pipes pass through the inner ring wall of the overflow tank and are supported and connected to the first and second ring pipes by the first and second support rods, respectively. The above arrangement does not interfere with the water film generated by the overflow tank, which facilitates the formation of a continuous and complete water film. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cylinder and its interior as described in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the water film dust removal spray system described in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the overflow tank described in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10. Cylinder body; 11. Sewage pipe; 20. Overflow trough; 21. Inner ring wall; 22. Outer ring wall; 23. Bottom ring; 24. Top ring; 25. Bevel; 30. First inlet pipe; 41. First annular pipe; 42. Second inlet pipe; 51. Second annular pipe; 52. Third inlet pipe; 61. Sedimentation tank; 62. Circulation pump; 70. Three-way valve; 81. First support rod; 82. Second support rod. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] Example:

[0024] like Figures 1-3 As shown, a water film dust removal spray system includes a cylinder 10, an overflow trough 20, and a compensating spray device. The overflow trough 20 is located at the top of the cylinder 10 and includes an inner ring wall 21, an outer ring wall 22, a bottom ring 23, and a top ring 24. The outer ring wall 22 is located outside the inner ring wall 21, with its bottom side flush with the inner ring wall 21, and its top side higher than the outer ring wall 22. The bottom ring 23 connects to the bottom side of the inner ring wall 21 on its inner side and to the bottom side of the outer ring wall 22 on its outer side, forming an annular water trough. The top ring 24 is located on the top side of the inner ring wall 21, with its outer side flush with the cylinder 10. The inner wall of the cylinder 10 is connected; the cylinder 10 is provided with a first water inlet pipe 30, which passes through the gap between the top ring 24 and the outer ring wall 22 and bends into the annular water tank; the compensating spray device is located at the bottom of the overflow tank 20 inside the cylinder 10. The compensating spray device includes a first annular pipe 41, a second water inlet pipe 42 and a first nozzle. The first annular pipe 41 is set horizontally. The second water inlet pipe 42 passes through the cylinder 10 and is connected to the first annular pipe 41. The first nozzle is evenly distributed on the side of the first annular pipe 41 facing the inner wall of the cylinder 10. The first nozzle is preferably a spiral nozzle, which is not easy to clog.

[0025] The working principle of the above technical solution is as follows:

[0026] When water enters through the first water inlet pipe 30, it gradually fills the annular water tank and overflows from one side of the outer ring wall 22, flowing into the gap between the outer ring wall 22 and the inner wall of the cylinder 10 to form a water film, which then flows down along the inner wall of the cylinder 10. At the same time, water enters through the second water inlet pipe 42 and is sprayed out from the first nozzle on the first annular pipe 41. It combines with the water film formed by the overflow tank 20 to increase the thickness of the water film and avoid insufficient thickness of the water film on one side due to the levelness of the cylinder 10.

[0027] In another embodiment, such as Figure 1-2As shown, the system also includes a rinsing device located inside the cylinder 10. The rinsing device includes a second annular pipe 51, a second nozzle, and a third water inlet pipe 52. The second annular pipe 51 can be horizontally positioned in the middle of the cylinder 10. The third water inlet pipe 52 passes through the cylinder 10 and connects to the second annular pipe 51. The second nozzles are evenly distributed outside the second annular pipe 51 and facing the inner wall of the cylinder 10. Preferably, the second nozzles are arranged in groups of three, and the three second nozzles in each group can be arranged obliquely upward, downward, and horizontally, respectively. The input ends of the second water inlet pipe 42 and the third water inlet pipe 52 can be connected to the same water source through a three-way valve 70.

[0028] The flushing device is used after the water film dust collector is shut down. The third water inlet pipe 52 can be connected to a water source to supply water to the second annular pipe 51. The second nozzle of the second annular pipe 51 can spray water in three directions to flush away the dust and mud remaining on the inner wall of the cylinder 10.

[0029] In another embodiment, such as Figure 2 As shown, it also includes a circulation component, which includes a sedimentation tank 61 and a circulation pump 62. A drain pipe 11 is provided at the bottom of the cylinder 10. The end of the drain pipe 11 is connected to the input end of the sedimentation tank 61. The output end of the sedimentation tank 61 is connected to the first inlet pipe 30 through the circulation pump 62.

[0030] After the water film dust removal, the water can enter the sedimentation tank 61 through the sewage pipe 11 for simple solid-liquid separation treatment. The water is then used to feed water into the overflow tank 20 through the first water inlet pipe 30. The overflow tank 20 is not easy to clog and is convenient for recycling the water after spraying. If the overflow tank 20 accumulates impurities due to the recycling of water, it can be cleaned regularly before use.

[0031] In another embodiment, such as Figure 1 As shown, the bottom of the bottom ring 23 is provided with a first support rod 81, the first annular tube 41 is connected to the bottom end of the first support rod 81, and a second support rod 82 is provided between the first annular tube 41 and the second annular tube 51; the second water inlet pipe 42 passes through the cylinder 10 and the inner ring wall 21 and connects to the first annular tube 41, and the third water inlet pipe 52 passes through the cylinder 10 and the inner ring wall 21 and connects to the second annular tube 51.

[0032] The second water inlet pipe 42 and the third water inlet pipe 52 pass through the inner ring wall 21 of the overflow tank 20 and are supported and connected to the first annular pipe 41 and the second annular pipe 51 by the first support rod 81 and the second support rod 82 respectively. The above arrangement does not interfere with the water film generated by the overflow tank 20, which facilitates the formation of a continuous and complete water film.

[0033] In another embodiment, such as Figure 3 As shown, the outer bottom of the outer ring wall 22 is provided with an annular and downwardly inclined side 25.

[0034] The inclined side 25 has a guiding function, which makes the water that has just overflowed tend to move towards the inner wall of the cylinder 10, which is more conducive to forming a stable water film by adhering to the inner wall of the cylinder 10.

[0035] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A water film dust removal spray system, characterized in that, The device includes a cylinder, an overflow trough, and a compensating spray device. The overflow trough is located at the top of the cylinder, and the cylinder has a first inlet pipe with its end located at the overflow trough. The compensating spray device is located at the bottom of the overflow trough inside the cylinder. The compensating spray device includes a first annular pipe, a second inlet pipe, and a first nozzle. The first annular pipe is horizontally arranged, the second inlet pipe passes through the cylinder and connects to the first annular pipe, and the first nozzle is evenly distributed on the side of the first annular pipe facing the inner wall of the cylinder.

2. The water film dust removal spray system according to claim 1, characterized in that, The overflow trough includes an inner ring wall, an outer ring wall, a bottom ring, and a top ring. The outer ring wall is located outside the inner ring wall, and its bottom side is flush with the inner ring wall. The top side of the inner ring wall is higher than the outer ring wall. The bottom ring is connected to the bottom side of the inner ring wall on its inner side and to the bottom side of the outer ring wall on its outer side, forming an annular water trough. The top ring is located on the top side of the inner ring wall, and its outer side is connected to the inner wall of the cylinder.

3. The water film dust removal spray system according to claim 2, characterized in that, It also includes a rinsing device, which is located inside the cylinder. The rinsing device includes a second annular pipe, a second nozzle, and a third water inlet pipe. The second annular pipe is horizontally arranged, and the third water inlet pipe passes through the cylinder and is connected to the second annular pipe. The second nozzles are evenly arranged outside the second annular pipe and facing the inner wall of the cylinder. The second nozzles are arranged in groups of at least two, and each group of second nozzles has a different tilt angle relative to the inner wall of the cylinder.

4. The water film dust removal spray system according to claim 3, characterized in that, It also includes a circulation component, which includes a sedimentation tank and a circulation pump. The bottom of the cylinder is provided with a drain pipe, the end of which is connected to the input end of the sedimentation tank. The output end of the sedimentation tank is connected to the first inlet pipe through the circulation pump.

5. The water film dust removal spray system according to claim 4, characterized in that, The bottom of the bottom ring is provided with a first support rod, the first annular tube is connected to the bottom end of the first support rod, and a second support rod is provided between the first annular tube and the second annular tube; the second water inlet pipe passes through the cylinder and the inner ring wall and is connected to the first annular tube, and the third water inlet pipe passes through the cylinder and the inner ring wall and is connected to the second annular tube.

6. The water film dust removal spray system according to claim 2, characterized in that, The outer bottom of the outer ring wall has a ring-shaped, downward-sloping edge.

7. The water film dust removal spray system according to claim 1, characterized in that, The first nozzle is a spiral nozzle.

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