SCR (Selective Catalytic Reduction) denitration catalyst cleaning device

Abstract

The utility model discloses an SCR (Selective Catalytic Reduction) denitration catalyst cleaning device, which relates to the technical field of cleaning, and comprises a cleaning cylinder and a water spraying mechanism, a support filter screen is arranged in the cleaning cylinder, the water spraying mechanism is arranged above the cleaning cylinder, the water spraying mechanism comprises a rotating pipe which is rotatably arranged, and a transverse pipe is arranged below the rotating pipe; the bottom end of the rotating pipe is fixedly connected with the outer wall of the transverse pipe in a penetrating mode, and water spraying holes are formed in the bottom end of the rotating pipe at intervals. According to the SCR denitration catalyst cleaning device, the rotating pipe, the transverse pipe and the water spraying holes are arranged, water used for cleaning enters the rotating pipe and then enters the transverse pipe, finally, water columns are sprayed out of the water spraying holes with small hole diameters, and due to the fact that the water columns with strong impact force can be formed when the water columns are sprayed out of small spaces, when the water columns impact hole channels in the top ends of SCR denitration catalysts, the SCR denitration catalysts can be cleaned. The impact force of the water column can directly destroy the tension of the water film at the top of the pore channel, so that the water film is punctured, liquid can stably enter the pore channel for cleaning, and the cleaning effect of the SCR denitration catalyst is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, and in particular to a cleaning device for SCR denitrification catalyst. Background Technology

[0002] SCR denitrification catalysts are common denitrification catalysts in denitrification systems.

[0003] To increase the contact area, SCR denitration catalysts have many through-holes, which improves their catalytic effect. However, with prolonged operation, a large number of impurities will be adsorbed inside the pores of the SCR denitration catalyst. The impurities inside the pores need to be cleaned to ensure the catalytic effect of the SCR denitration catalyst.

[0004] The common cleaning method is to place the SCR denitrification catalyst in a cleaning tank and immerse it in a cleaning solution to achieve the cleaning purpose. However, after entering the cleaning tank, a water film easily forms at the end of the pores of the SCR denitrification catalyst. Under the action of liquid tension, external water cannot pass through the water film to enter the pores, thereby reducing the cleaning effect of the SCR denitrification catalyst. Utility Model Content

[0005] The purpose of this invention is to provide an SCR denitrification catalyst cleaning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an SCR denitrification catalyst cleaning device, comprising:

[0007] A cleaning cylinder, wherein a supporting filter screen is provided inside the cleaning cylinder;

[0008] A water spraying mechanism is provided above the cleaning cylinder. The water spraying mechanism includes a rotating tube, a horizontal tube below the rotating tube, the bottom end of the rotating tube being fixedly inserted and connected to the outer wall of the horizontal tube, and water spraying holes spaced apart at the bottom end of the rotating tube.

[0009] Preferably, a connecting plate is provided above the cleaning tube, a first rotating hole is provided at the bottom end of the connecting plate, the outer wall of the rotating tube is rotatably connected to the inner wall of the first rotating hole, and a water inlet mechanism is provided at the top end of the connecting plate.

[0010] Preferably, the water inlet mechanism includes an insertion hole at the top of the connecting plate, a water inlet pipe is fixedly connected to the inner wall of the insertion hole, a connecting ring is fixedly sleeved at the top of the outer wall of the water inlet pipe, the top of the connecting ring has multiple connecting holes, and the outer wall of the water inlet pipe is rotatably connected to the inner wall of the rotating pipe.

[0011] Preferably, a rotating groove is provided between the insertion hole and the first rotating hole, and a gear ring is provided inside the rotating groove. The gear ring is fixedly sleeved on the outer wall of the rotating tube, and a rack is slidably connected to the inner wall of the rotating groove. The outer wall of the rack is meshed with the outer wall of the gear ring.

[0012] Preferably, the inner wall of the rotating groove is provided with a wedge-shaped groove, the inner wall of the wedge-shaped groove is slidably connected with a wedge-shaped strip, the outer wall of the wedge-shaped strip is fixedly connected to the outer wall of the rack, and one side of the wedge-shaped strip extends to the outside of the connecting plate and is fixedly connected with a pull ring.

[0013] Preferably, the outer wall of the wedge-shaped strip is provided with a plurality of ball grooves, and a rolling ball is movably engaged on the inner wall of the ball groove, with the outer wall of the rolling ball fitting against the inner wall of the wedge-shaped groove.

[0014] Preferably, a fixing plate is fixedly connected to the bottom end of the connecting plate, a support plate is fixedly connected to the outer wall of the cleaning cylinder, fixing blocks are symmetrically fixedly connected to the outer wall of the support plate, a fixing shaft is fixedly connected to the top end of the two fixing blocks, a second rotating hole is opened on the front side of the fixing plate, the outer wall of the fixing shaft is rotatably connected to the inner wall of the second rotating hole, and a limit plate is fixedly connected to the top end of the support plate.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This invention utilizes a rotating pipe, a horizontal pipe, and spray nozzles. The water used for cleaning enters the rotating pipe, then the horizontal pipe, and finally a water column is ejected from the smaller nozzles. Because the water is ejected from a small space, it forms a water column with strong impact. When the water column impacts the pores at the top of the SCR denitrification catalyst, the impact force of the water column directly breaks the tension of the water film at the top of the pores, thereby puncturing the water film and allowing the liquid to stably enter the pores for cleaning, thus improving the cleaning effect of the SCR denitrification catalyst. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the rotating tube of this utility model.

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0020] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point B.

[0021] In the diagram: 101, cleaning cylinder; 102, support filter screen; 201, rotating pipe; 202, horizontal pipe; 203, water spray hole; 301, connecting plate; 302, first rotating hole; 401, insertion hole; 402, water inlet pipe; 403, connecting ring; 404, connecting hole; 501, rotating groove; 502, gear ring; 503, rack; 601, wedge groove; 602, wedge strip; 603, pull ring; 701, ball groove; 702, rolling ball; 801, fixing plate; 802, support plate; 803, fixing block; 804, fixing shaft; 805, second rotating hole; 806, limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-4 The SCR denitrification catalyst cleaning device shown includes a cleaning cylinder 101 and a water spraying mechanism. A support filter screen 102 is provided inside the cleaning cylinder 101. When cleaning the SCR denitrification catalyst, the SCR denitrification catalyst is placed on the top of the support filter screen 102. The support filter screen 102 is used to support the SCR denitrification catalyst. The water used to clean the SCR denitrification catalyst will flow down directly through the filter holes of the support filter screen 102.

[0024] In a preferred embodiment, a water spraying mechanism is disposed above the cleaning cylinder 101. The water spraying mechanism includes a rotating tube 201, and a horizontal tube 202 is disposed below the rotating tube 201. The bottom end of the rotating tube 201 is fixedly inserted and connected to the outer wall of the horizontal tube 202. Water spraying holes 203 are spaced apart at the bottom end of the rotating tube 201. After the water for cleaning enters the rotating tube 201, it enters the horizontal tube 202. Finally, the water column is sprayed out from the smaller water spraying holes 203. Since the water is sprayed out from a small space, it will form a water column with strong impact force. When the water column impacts the channel at the top of the SCR denitrification catalyst, the impact force of the water column will directly destroy the tension of the water film at the top of the channel, thereby piercing the water film and allowing the liquid to stably enter the channel for cleaning, thereby improving the cleaning effect of the SCR denitrification catalyst.

[0025] The cleaning cylinder 101 is equipped with a connecting plate 301 above it. The bottom end of the connecting plate 301 is provided with a first rotating hole 302. The outer wall of the rotating pipe 201 is rotatably connected to the inner wall of the first rotating hole 302. The top end of the connecting plate 301 is provided with a water inlet mechanism. By rotating the rotating pipe 201 at the bottom end of the connecting plate 301, the horizontal pipe 202 is rotated, so that the water jet sprayed from the water spray hole 203 at the bottom end of the horizontal pipe 202 can contact the SCR denitrification catalyst over a wider range, thus ensuring the stability of the water spray mechanism.

[0026] The water inlet mechanism includes an insertion hole 401 at the top of the connecting plate 301. A water inlet pipe 402 is fixedly connected to the inner wall of the insertion hole 401. A connecting ring 403 is fixedly sleeved at the top of the outer wall of the water inlet pipe 402. Multiple connecting holes 404 are opened at the top of the connecting ring 403. The outer wall of the water inlet pipe 402 is rotatably connected to the inner wall of the rotating pipe 201. The water inlet pipe 402 can be easily connected to an external water supply device through the connecting ring 403 and the connecting holes 404, so that water can stably enter the rotating pipe 201 through the water inlet pipe 402. At the same time, the rotating pipe 201 is sleeved on the outer wall of the water inlet pipe 402, and the rotating pipe 201 can stably rotate on the outer wall of the water inlet pipe 402, further ensuring the stability of the water spraying mechanism.

[0027] A rotating groove 501 is provided between the insertion hole 401 and the first rotating hole 302. A gear ring 502 is provided inside the rotating groove 501. The gear ring 502 is fixedly sleeved on the outer wall of the rotating tube 201. A rack 503 is slidably connected to the inner wall of the rotating groove 501. The outer wall of the rack 503 meshes with the outer wall of the gear ring 502. By reciprocating the rack 503, the meshing gear ring 502 can be driven to rotate, thereby causing the rotating tube 201 to rotate. This allows the water jet sprayed from the water spray hole 203 at the bottom of the horizontal tube 202 to spray a wide range toward the SCR denitrification catalyst.

[0028] The inner wall of the rotating groove 501 is provided with a wedge-shaped groove 601, and a wedge-shaped strip 602 is slidably connected to the inner wall of the wedge-shaped groove 601. The outer wall of the wedge-shaped strip 602 is fixedly connected to the outer wall of the rack 503. One side of the wedge-shaped strip 602 extends to the outside of the connecting plate 301 and is fixedly connected to a pull ring 603. The wedge-shaped strip 602 is limited by the wedge-shaped groove 601, so that when the rack 503 moves back and forth, it can stably mesh with the gear ring 502, ensuring the stable rotation of the water spraying mechanism. The pull ring 603 can stably move the wedge-shaped strip 602 outside the connecting plate 301.

[0029] The outer wall of the wedge-shaped strip 602 is provided with multiple ball grooves 701, and the inner wall of the ball grooves 701 is movably fitted with a ball 702. The outer wall of the ball 702 is fitted to the inner wall of the wedge-shaped groove 601. The ball 702 makes the wedge-shaped strip 602 move more smoothly in the wedge-shaped groove 601.

[0030] The bottom end of the connecting plate 301 is fixedly connected to a fixing plate 801, the outer wall of the cleaning cylinder 101 is fixedly connected to a support plate 802, the outer wall of the support plate 802 is symmetrically fixedly connected to fixing blocks 803, the top ends of the two fixing blocks 803 are fixedly connected to a fixing shaft 804, the front side of the fixing plate 801 is provided with a second rotating hole 805, the outer wall of the fixing shaft 804 is rotatably connected to the inner wall of the second rotating hole 805, and the top end of the support plate 802 is fixedly connected to a limiting plate 806. Through the cooperation of the fixing shaft 804 and the second rotating hole 805, the fixing plate 801 can rotate around the fixing shaft 804, thereby allowing the connecting plate 301 to rotate until the fixing plate 801 abuts against the support plate 802, so that the connecting plate 301 can be rotated to a vertical position, making it convenient to place the SCR denitrification catalyst on or remove it from the support filter screen 102.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning device for SCR denitrification catalyst, characterized in that, include: A cleaning cylinder (101) is provided with a support filter (102) inside the cleaning cylinder (101); A water spraying mechanism is provided above the cleaning cylinder (101). The water spraying mechanism includes a rotating pipe (201) that is rotatably arranged. A horizontal pipe (202) is provided below the rotating pipe (201). The bottom end of the rotating pipe (201) is fixedly inserted and connected to the outer wall of the horizontal pipe (202). Water spraying holes (203) are provided at intervals at the bottom end of the rotating pipe (201).

2. The SCR denitrification catalyst cleaning device according to claim 1, characterized in that, A connecting plate (301) is provided above the cleaning cylinder (101). A first rotating hole (302) is provided at the bottom end of the connecting plate (301). The outer wall of the rotating pipe (201) is rotatably connected to the inner wall of the first rotating hole (302). A water inlet mechanism is provided at the top end of the connecting plate (301).

3. The SCR denitrification catalyst cleaning device according to claim 2, characterized in that, The water inlet mechanism includes an insertion hole (401) at the top of the connecting plate (301). A water inlet pipe (402) is fixedly connected to the inner wall of the insertion hole (401). A connecting ring (403) is fixedly sleeved on the top of the outer wall of the water inlet pipe (402). A plurality of connecting holes (404) are opened at the top of the connecting ring (403). The outer wall of the water inlet pipe (402) is rotatably connected to the inner wall of the rotating pipe (201).

4. The SCR denitrification catalyst cleaning device according to claim 3, characterized in that, A rotating groove (501) is provided between the insertion hole (401) and the first rotating hole (302). A gear ring (502) is provided inside the rotating groove (501). The gear ring (502) is fixedly sleeved on the outer wall of the rotating tube (201). A rack (503) is slidably connected to the inner wall of the rotating groove (501). The outer wall of the rack (503) meshes with the outer wall of the gear ring (502).

5. The SCR denitrification catalyst cleaning device according to claim 4, characterized in that, The inner wall of the rotating groove (501) is provided with a wedge-shaped groove (601), and a wedge-shaped strip (602) is slidably connected to the inner wall of the wedge-shaped groove (601). The outer wall of the wedge-shaped strip (602) is fixedly connected to the outer wall of the rack (503). One side of the wedge-shaped strip (602) extends to the outside of the connecting plate (301) and is fixedly connected with a pull ring (603).

6. The SCR denitrification catalyst cleaning device according to claim 5, characterized in that, The outer wall of the wedge-shaped strip (602) is provided with a plurality of ball grooves (701), and the inner wall of the ball grooves (701) is movably fitted with a ball (702), and the outer wall of the ball (702) is fitted to the inner wall of the wedge-shaped groove (601).

7. The SCR denitrification catalyst cleaning device according to claim 2, characterized in that, A fixing plate (801) is fixedly connected to the bottom end of the connecting plate (301), a support plate (802) is fixedly connected to the outer wall of the cleaning cylinder (101), a fixing block (803) is symmetrically fixedly connected to the outer wall of the support plate (802), a fixing shaft (804) is fixedly connected to the top end of the two fixing blocks (803), a second rotating hole (805) is opened on the front side of the fixing plate (801), the outer wall of the fixing shaft (804) is rotatably connected to the inner wall of the second rotating hole (805), and a limit plate (806) is fixedly connected to the top end of the support plate (802).

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