Denitration device for cement processing

Abstract

The utility model discloses a denitration device for cement processing, and relates to the technical field of cement processing. The denitration device for cement processing comprises a movable base, two positioning structures are arranged at the bottom of the movable base, a denitration equipment body is movably clamped to the top end of the movable base through a supporting frame, and an air inlet filtering device is fixedly installed at the air inlet end of the denitration equipment body; according to the denitration device for cement processing, a positioning structure is arranged, a double-shaft motor in a positioning box can be used for promoting a follow-up rod to drive inclined blocks to move through a movable lantern ring, so that the two sets of inclined blocks can jointly drive a ground contact plate to gradually make contact with the ground, and the ground contact plate gradually supports a movable base away from the ground; the denitration device can be stably placed at the current position after moving to the designated position, so that the situation of self-sliding in a comparison scheme is avoided, and the denitration device is more stable when being connected with cement processing equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a denitration device for cement processing. Background Art

[0002] At present, the cement industry has become the third largest source of NOx emissions in my country after thermal power generation and transportation. With the continuous improvement of NOx emission standards in the cement industry, the development of low-emission control technology for NOx in coal-fired cement kilns has received more and more attention. Since cement will emit a large amount of waste gas during the production process, the waste smoke usually contains a large amount of nitrogen oxides NOx such as NO. If these nitrogen oxides are directly discharged into the atmosphere, they will cause highly corrosive acid rain. Therefore, the flue gas must be treated by denitrification equipment before it is discharged.

[0003] In a cement production tail gas ammonia-free denitrification device with patent publication number CN217312705U, it is proposed that "a universal wheel is respectively installed at the four corner positions of the lower end surface of the liquid storage tank, and when in use, the device can be moved to a designated position by the universal wheel";

[0004] However, the above solution still has certain shortcomings in actual use. In this solution, a universal wheel is used to move the device, but there is no self-locking structure, which causes the device to easily slide after being moved to the specified position, thereby greatly reducing the connection stability between the device and the exhaust end of the cement processing equipment.

[0005] The device is connected to the exhaust end of the waste gas of the cement processing equipment through an air intake pipe, but no filtering structure is provided in the air intake pipe, which causes particulate matter in the waste gas generated during the cement processing process to enter the device, and over time the device will be blocked, thereby affecting the normal operation of the device. Utility Model Content

[0006] The utility model provides a denitration device for cement processing to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a denitration device for cement processing, comprising a mobile base, two positioning structures are arranged at the bottom of the mobile base, a denitration device body is movably connected to the top of the mobile base through a support frame, and an air intake filter device is fixedly installed at the air intake end of the denitration device body;

[0008] The positioning structure comprises a positioning box, a dual-axis motor is fixedly mounted on the inner wall of the positioning box, a rotating shaft is fixedly mounted on the output shaft of the dual-axis motor, a movable collar is sleeved on the surface of the rotating shaft, a follower rod is fixedly mounted on the bottom end of the movable collar, an inclined block is slidably connected to the bottom of the positioning box via a damping spring rod, a contact plate is fixedly mounted between the bottom ends of the two inclined blocks, and the contact plate is located below the positioning box;

[0009] The air intake filter device comprises an external plate, which is fixedly mounted on the outside of the denitration equipment body, a filter box and an extraction pump are arranged on the top of the external plate, and the filter box and the denitration equipment body are connected through the extraction pump;

[0010] The inner wall of the filter box body is provided with a filter screen and a water tank, a cover plate is fixedly installed on the top of the water tank, an introduction pipe is fixedly installed at the center of the cover plate, and the bottom end of the introduction pipe penetrates into the interior of the water tank.

[0011] Furthermore, a closed groove connected end to end is provided on the surface of the rotating shaft, a limit rod is fixedly installed on the inner wall of the movable ring, and the bottom end of the limit rod overlaps with the opening of the closed groove.

[0012] Furthermore, a cross bar is fixedly mounted on the inner wall of the positioning box, and the follower rod is slidably connected to the surface of the cross bar.

[0013] Furthermore, a lifting frame is fixedly installed on the top of the external plate, and the external plate is movably connected to the filter box body through the lifting frame.

[0014] Furthermore, a socket is fixedly installed on the inner wall of the filter box, one end of the filter screen is located inside the socket, and the other end of the filter screen is fixedly connected to an external handle, and the external handle is located outside the filter box.

[0015] Compared with the prior art, the utility model provides a denitrification device for cement processing, which has the following beneficial effects:

[0016] 1. The denitrification device for cement processing is provided with a positioning structure. The dual-axis motor inside the positioning box can cause the follower rod to drive the inclined block to move through the movable sleeve ring, so that the two groups of inclined blocks can jointly drive the contact plate to gradually contact the ground, so that the contact plate gradually lifts the movable base off the ground, so that the device can be stably placed at the current position after moving to the specified position, thereby avoiding the self-sliding situation in the comparative scheme, and making the denitrification device more stable when connected to the cement processing equipment.

[0017] 2. The denitrification device for cement processing is equipped with an air intake filter device. It uses multiple sets of filter screens to filter and adsorb particulate impurities in the exhaust gas. The introduction pipe can pass the pre-treated exhaust gas into the water tank and fully contact it with the washing liquid to form a water washing treatment, so that the exhaust gas is secondary treated before entering the main body of the denitrification equipment, avoiding the impurities in the exhaust gas from entering the main body of the denitrification equipment, thereby ensuring the normal use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the positioning structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the air intake filter device of the utility model;

[0021] Figure 4 This is a schematic diagram of the filter box structure of the utility model.

[0022] In the figure: 1. Mobile base; 2. Positioning structure; 3. Support frame; 4. Denitrification equipment body; 5. Air intake filter device; 6. Positioning box; 7. Dual-axis motor; 8. Rotating shaft; 9. Mobile sleeve; 10. Follow-up rod; 11. Inclined block; 12. Touch floor; 13. External plate; 14. Filter box; 15. Lifting frame; 16. Extraction pump; 17. Filter net; 18. External handle; 19. Water tank; 20. Cover plate; 21. Inlet pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4The utility model discloses a denitration device for cement processing, comprising a mobile base 1, wherein two positioning structures 2 are arranged at the bottom of the mobile base 1, a denitration device body 4 is movably connected to the top of the mobile base 1 through a support frame 3, and an air intake filter device 5 is fixedly installed at the air intake end of the denitration device body 4; the positioning structure 2 comprises a positioning box 6, a dual-axis motor 7 is fixedly installed on the inner wall of the positioning box 6, a rotating shaft 8 is fixedly installed on the output shaft of the dual-axis motor 7, a movable sleeve 9 is sleeved on the surface of the rotating shaft 8, a closed groove connected end to end is opened on the surface of the rotating shaft 8, a limiting rod is fixedly installed on the inner wall of the movable sleeve 9, the bottom end of the limiting rod overlaps with the opening of the closed groove, and the bottom end of the movable sleeve 9 A follower rod 10 is fixedly installed, and the bottom of the positioning box 6 is slidably connected with an inclined block 11 through a damping spring rod. A contact plate 12 is fixedly installed between the bottom ends of the two inclined blocks 11, and the contact plate 12 is located below the positioning box 6; by setting the positioning structure 2, the dual-axis motor 7 inside the positioning box 6 can be used to drive the follower rod 10 to move the inclined block 11 through the moving ring 9, so that the two groups of inclined blocks 11 can jointly drive the contact plate 12 to gradually contact the ground, so that the contact plate 12 gradually lifts the movable base 1 off the ground, so that the device can be stably placed at the current position after moving to the specified position, thereby avoiding the self-sliding situation that will occur in the comparison scheme, and making the denitrification device more stable when connected to the cement processing equipment.

[0025] The air intake filter device 5 includes an external plate 13, which is fixedly installed on the outside of the denitration equipment body 4, and a filter box 14 and an extraction pump 16 are arranged on the top of the external plate 13. The filter box 14 and the denitration equipment body 4 are connected through the extraction pump 16. The inner wall of the filter box 14 is provided with a filter screen 17 and a water tank 19. A cover plate 20 is fixedly installed on the top of the water tank 19, and an inlet pipe 21 is fixedly installed at the center of the cover plate 20, and the bottom end of the inlet pipe 21 extends into the interior of the water tank 19; by setting the air intake filter device 5, multiple groups of filter screens 17 can be used to filter and adsorb particulate impurities in the exhaust gas, and the inlet pipe 21 can be used to pass the pre-treated exhaust gas into the water tank 19 and fully contact with the washing liquid to form a water washing treatment, so that the exhaust gas is secondary treated before entering the denitration equipment body 4, avoiding the situation where impurities in the exhaust gas will enter the denitration equipment body 4, thereby ensuring the normal use of the device.

[0026] Specifically, a cross bar is fixedly mounted on the inner wall of the positioning box 6, and the follower rod 10 is slidably connected to the surface of the cross bar.

[0027] In this embodiment, the follower rod 10 can slide along the surface of the cross bar, thereby improving the movement stability of the follower rod 10.

[0028] Specifically, a lifting frame 15 is fixedly mounted on the top of the external plate 13 , and the external plate 13 is movably connected to the filter box 14 via the lifting frame 15 .

[0029] In this embodiment, the lifting frame 15 can be used to quickly disassemble and assemble the filter box 14 and the external plate 13 .

[0030] Specifically, a socket is fixedly installed on the inner wall of the filter box 14 , one end of the filter screen 17 is located inside the socket, and the other end of the filter screen 17 is fixedly connected to an external handle 18 , which is located on the outside of the filter box 14 .

[0031] In this embodiment, the external handle 18 can be used to facilitate the staff to take out the filter 17 from the filter box 14 and clean or replace it.

[0032] When in use, the device is first moved to a designated position, and then the air intake filter device 5 is connected to the exhaust end of the waste gas of the cement processing equipment;

[0033] Then, the positioning structure 2 is started, so that the output shaft of the dual-axis motor 7 drives the rotating shaft 8 to rotate. Since the surface of the rotating shaft 8 is provided with a closing groove of the tail necklace, and the inner wall of the movable collar 9 is fixedly connected to the limit rod, and the bottom end of the limit rod is slidably connected to the opening of the closing groove, the rotation of the rotating shaft 8 will drive the relative position between the closing groove and the limit rod to change, so that the rotation of the rotating shaft 8 will drive the movable collar 9 to move in the axial direction, so that the movement of the movable collar 9 will drive the follower rod 10 to move horizontally;

[0034] And because the opening directions of the two closed grooves are opposite, the moving directions of the two follower rods 10 are also opposite, so that the follower rod 10 will gradually overlap with the inclined surface of the inclined block 11, and then the inclined block 11 will gradually press down under the bottom end of the follower rod 10, so that the two inclined blocks 11 can jointly drive the contact plate 12 to gradually contact the ground, so that the contact plate 12 gradually lifts the moving base 1 off the ground, so that the device can be stably placed at the current position after moving to the specified position;

[0035] Then, the extraction pump 16 is started, so that the extraction pump 16 draws the waste gas of the cement processing equipment into the filter box 14, and the waste gas is filtered by a filter screen 17. The filter screen 17 can be a plurality of impurity filtering structures such as a PP cotton filter element screen, a granular activated carbon filter element filter screen 17 and a ceramic filter element filter screen 17;

[0036] After the preliminary filtration, the exhaust gas enters the water tank 19 through the inlet pipe 21. Since the bottom end of the inlet pipe 21 is below the liquid level of the washing liquid, the exhaust gas will be fully in contact with the washing liquid, thereby forming a water washing treatment for the exhaust gas. Then, the exhaust gas after the secondary treatment begins to enter the denitration equipment body 4 for denitration treatment.

[0037] The description of the denitration device body 4 has been described in detail in a cement kiln denitration mechanism with patent publication number CN219942150U, and will not be further described here;

[0038] The description of the scrubbing liquid has been proposed in a cement production tail gas ammonia-free denitrification device with patent publication number CN217312705U, and will not be expanded here.

[0039] In summary, the denitration device for cement processing, by setting the positioning structure 2, uses the dual-axis motor 7 inside the positioning box 6 to drive the follower rod 10 to drive the inclined block 11 to move through the moving collar 9, so that the two groups of inclined blocks 11 can jointly drive the contact plate 12 to gradually contact the ground, so that the contact plate 12 gradually lifts the movable base 1 off the ground, so that the device can be stably placed at the current position after moving to the specified position, thereby avoiding the self-sliding situation in the comparative scheme, and making the denitration device more stable when connected to the cement processing equipment;

[0040] By setting up an air intake filter device 5, particulate impurities in the exhaust gas can be filtered and adsorbed using multiple groups of filter screens 17, and the pre-treated exhaust gas can be passed into the water tank 19 in conjunction with the inlet pipe 21 and fully contacted with the washing liquid to form a water washing treatment, so that the exhaust gas is subjected to secondary treatment before entering the denitrification equipment body 4, thereby avoiding the situation where impurities in the exhaust gas will enter the denitrification equipment body 4, thereby ensuring the normal use of the device.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A denitration device for cement processing, comprising a mobile base (1), characterized in that: The bottom of the mobile base (1) is provided with two positioning structures (2); the top of the mobile base (1) is movably connected to a denitration equipment body (4) via a support frame (3); an air intake filter device (5) is fixedly installed at the air intake end of the denitration equipment body (4); The positioning structure (2) comprises a positioning box (6), a dual-axis motor (7) is fixedly mounted on the inner wall of the positioning box (6), a rotating shaft (8) is fixedly mounted on the output shaft of the dual-axis motor (7), a movable collar (9) is sleeved on the surface of the rotating shaft (8), a follower rod (10) is fixedly mounted on the bottom end of the movable collar (9), an inclined block (11) is slidably connected to the bottom of the positioning box (6) via a damping spring rod, a contact plate (12) is fixedly mounted between the bottom ends of the two inclined blocks (11), and the contact plate (12) is located below the positioning box (6); The air intake filter device (5) comprises an external plate (13), the external plate (13) being fixedly mounted on the outside of the denitration device body (4), a filter box (14) and an extraction pump (16) being arranged on the top of the external plate (13), and the filter box (14) and the denitration device body (4) being connected via the extraction pump (16); The inner wall of the filter box (14) is provided with a filter screen (17) and a water tank (19); a cover plate (20) is fixedly mounted on the top of the water tank (19); an inlet pipe (21) is fixedly mounted at the center of the cover plate (20); and the bottom end of the inlet pipe (21) extends deep into the interior of the water tank (19).

2. A denitration device for cement processing according to claim 1, characterized in that: The surface of the rotating shaft (8) is provided with a closed groove connected end to end, and a limit rod is fixedly mounted on the inner wall of the movable sleeve ring (9), and the bottom end of the limit rod overlaps the opening of the closed groove.

3. A denitration device for cement processing according to claim 1, characterized in that: A cross bar is fixedly mounted on the inner wall of the positioning box (6), and the follower rod (10) is slidably connected to the surface of the cross bar.

4. A denitration device for cement processing according to claim 1, characterized in that: A lifting frame (15) is fixedly mounted on the top of the external plate (13), and the external plate (13) is movably connected to the filter box (14) via the lifting frame (15).

5. A denitration device for cement processing according to claim 1, characterized in that: A socket is fixedly mounted on the inner wall of the filter box (14); one end of the filter screen (17) is located inside the socket; the other end of the filter screen (17) is fixedly connected to an external handle (18); the external handle (18) is located outside the filter box (14).

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