Flue gas treatment and purification treatment device for rotary kiln

Abstract

The utility model relates to a rotary kiln flue gas treatment and purification treatment device, and belongs to the technical field of flue gas treatment.The rotary kiln flue gas treatment and purification treatment device comprises a treatment tank, the outer wall of the treatment tank is provided with a gas inlet and a gas outlet, the multiple baffles are arranged in the length direction of the treatment tank at intervals, one side of each baffle is hinged to the inner wall of the treatment tank, and the other side of each baffle is hinged to the outer wall of the treatment tank; a torsional spring is mounted at the hinged part of the baffle and the treatment tank; a containing cavity is formed in the inner wall of the treatment tank in the vertical direction, the driving roller is rotationally connected to the interior of the containing cavity of the treatment tank, and a driving motor used for driving the driving roller to rotate is installed on the treatment tank; the number of the adjusting assemblies is the same as that of the baffles, the adjusting assemblies and the baffles are in one-to-one correspondence, and the driving rollers move the baffles through the adjusting assemblies; and the spraying assembly is used for spraying treatment liquid into the treatment tank, and the device has the effect of improving the flue gas purification effect.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas treatment, and in particular to a rotary kiln flue gas treatment and purification device. Background Art

[0002] With the rapid development of industrialization, various industrial kilns are widely used, especially in metal smelting, cement production, waste treatment and other industries. Rotary kilns are important industrial equipment and important heat energy conversion equipment. However, rotary kilns will produce a lot of smoke during the production process, which seriously pollutes the environment.

[0003] In the process of rotary kiln flue gas treatment, spraying treatment liquid is a common and effective purification method. This method mainly relies on the spraying of chemical solutions to convert harmful substances in the flue gas into treatable substances through chemical reactions, thereby achieving the purpose of purifying the flue gas.

[0004] After the treatment liquid is sprayed into the treatment tank, the contact time between the treatment liquid and the flue gas is short, so the treatment liquid cannot fully react with the flue gas, thus resulting in a poor flue gas purification effect. Utility Model Content

[0005] In order to improve the purification effect of flue gas, the present application provides a rotary kiln flue gas treatment and purification device.

[0006] The present application provides a rotary kiln fume treatment and purification device that adopts the following technical solution:

[0007] A rotary kiln fume treatment and purification device comprises a treatment tank, an outer wall of which is provided with an air inlet and an air outlet, and further comprises:

[0008] A baffle, a plurality of baffles are arranged at intervals along the length direction of the processing tank, one side of the baffle is hinged to the inner wall of the processing tank, and a torsion spring is installed at the hinge between the baffle and the processing tank;

[0009] A drive roller, a receiving cavity is provided on the inner wall of the processing tank in the vertical direction, the drive roller is rotatably connected in the receiving cavity of the processing tank, and a drive motor for driving the drive roller to rotate is installed on the processing tank;

[0010] Adjustment components, the number of the adjustment components is the same as the number of the baffles and corresponds one to one, and the driving roller moves the baffles through the adjustment components;

[0011] A spray assembly is used to spray the treatment liquid into the treatment tank.

[0012] With the above technical solution, after the drive motor is started, the drive roller rotates continuously. During the rotation process, the drive roller moves the baffle through the adjustment component, so that the gap between the baffle and the inner wall of the treatment tank is continuously changed between the two states of having and not having a gap. When there is a gap between the baffle and the inner wall of the treatment tank, the flue gas advances through the gap between the baffle and the treatment tank; when there is no gap between the baffle and the inner wall of the treatment tank, the flue gas is blocked by the baffle. In this way, the flue gas intermittently passes through the baffle, thereby increasing the reaction time between the flue gas and the treatment liquid, thereby improving the purification effect.

[0013] Optionally, the adjustment assembly includes an adjustment sleeve, an adjustment rod and an adjustment ball. The adjustment sleeve is arranged on the driving roller and the two are fixed to each other. A reciprocating groove is opened on the outer wall of the adjustment sleeve. The reciprocating groove is connected from end to end. A guide rod is slidably connected inside the adjustment rod. The guide rod is fixed to the inner wall of the processing tank. One end of the adjustment rod is used to squeeze the baffle. The adjustment ball is fixed at the end of the adjustment rod away from the baffle. The adjustment ball extends into the reciprocating groove and the two are slidably adapted.

[0014] With the above technical solution, the driving roller rotates to rotate the adjusting sleeve, and during the rotation of the adjusting sleeve, the adjusting ball slides in the reciprocating groove to make the adjusting rod slide on the guide rod. When the adjusting rod moves away from the baffle, the torsion spring releases the elastic force to rotate the baffle, so that there is a gap between the baffle and the inner wall of the processing tank; when the adjusting rod moves toward the baffle, until there is no gap between the baffle and the inner wall of the processing tank, the torsion spring is stretched.

[0015] Optionally, a liquid scraping seat is sleeved on the baffle plate and the two are slidably adapted, and a transmission component for driving the liquid scraping seat to slide on the baffle plate is provided on one side of the baffle plate.

[0016] By adopting the above technical solution, the liquid scraping seat is made to slide on the baffle plate through the transmission assembly, so that the liquid scraping seat pushes the processing liquid on the baffle plate into the bottom.

[0017] Optionally, a liquid baffle plate is hingedly connected to one side of the liquid scraping seat, and a side of the liquid baffle plate away from the liquid scraping seat is slidably connected to the inner wall of the processing tank along the vertical direction.

[0018] By adopting the above technical solution, the sprayed processing liquid falls on the surface of the liquid baffle plate, and then slides along the liquid baffle plate to the front of the wiper seat, so that the processing liquid will not fall behind the wiper seat. As a result, the wiper seat pushes all the processing liquid on the baffle plate when sliding, reducing the residual processing liquid on the baffle plate.

[0019] Optionally, a guide block is hinged on one side of the liquid baffle away from the wiper seat, and a guide groove is opened in the inner wall of the processing tank in the vertical direction for slidingly matching with the guide block. A return spring is arranged in the guide groove, one end of the return spring is fixed to the guide block, and the other end of the return spring is fixed to the processing tank.

[0020] By adopting the above technical solution, when the scraper seat pushes the treatment liquid, the liquid baffle plate causes the guide block to slide downward along the guide groove, and at this time the reset spring accumulates elastic potential energy; when the scraper seat is reset, the reset spring releases elastic force to reset the liquid baffle plate through the guide block. In the above manner, the assistance of the reset spring is added during the reset process of the liquid baffle plate, so that the liquid baffle plate can be reset smoothly.

[0021] Optionally, the transmission assembly includes a transmission rod and a connecting rod, the transmission rod is sleeved on the guide rod and the two are slidably adapted, one end of the transmission rod is hinged to the wiper seat ball, and the connecting rod is fixed between the adjustment rod and the transmission rod.

[0022] By adopting the above technical solution, when the adjusting rod slides along the guide rod, the transmission rod is caused to slide on the guide rod through the connecting rod, so that the adjusting rod and the transmission rod move synchronously; a ball hinge is arranged between the transmission rod and the wiper seat, so that the transmission rod and the wiper seat will not get stuck.

[0023] Optionally, one end of the adjusting rod close to the baffle is rotatably connected to a ball, and the ball abuts against the baffle.

[0024] By adopting the above technical solution, the sliding friction between the adjusting rod and the baffle is replaced by rolling friction, thereby reducing the friction between the adjusting rod and the baffle.

[0025] Optionally, the number of the spray assemblies is the same as the number of baffles and corresponds one to one. The spray assembly includes a spray pipe and a nozzle. The spray pipe extends into the treatment tank, and the part of the spray pipe extending into the treatment tank is spirally shaped. Multiple nozzles are fixedly installed along the length direction of the spray pipe.

[0026] By adopting the above technical solution, the spiral spray pipe increases the spraying area, thereby making it easier for the treatment liquid to contact the flue gas, thereby improving the purification effect.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The distance between the baffle and the inner wall of the treatment tank is constantly changing between the presence and absence of a gap, so that the flue gas intermittently passes through the baffle, increasing the reaction time between the flue gas and the treatment liquid. At the same time, the spiral spray pipe increases the spraying area and improves the purification effect;

[0029] 2. After the processing liquid falls on the surface of the liquid baffle plate, it slides down along the liquid baffle plate, and then the liquid scraper seat pushes the processing liquid from the baffle plate to the bottom, thereby reducing the processing liquid remaining on the baffle plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a rotary kiln fume treatment and purification device according to an embodiment of the present application;

[0031] Figure 2This is a cross-sectional view showing the structure inside the treatment tank in the embodiment of the present application;

[0032] Figure 3 It is a partial schematic diagram for reflecting the movement mode of the baffle in the embodiment of the present application;

[0033] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A;

[0034] Figure 5 It is a partial cross-sectional view showing the connection method between the liquid baffle plate and the processing tank in the embodiment of the present application;

[0035] Figure 6 is a schematic diagram of the structure of the spraying assembly in the embodiment of the present application;

[0036] Figure 7 It is a partial schematic diagram showing the position of the sealing seat in the embodiment of the present application.

[0037] In the figure, 1. treatment tank; 11. air inlet; 12. air outlet; 13. storage chamber; 14. driving motor; 15. guide groove; 16. reset spring; 17. cleaning port; 18. sealing seat; 19. supporting frame; 2. baffle; 21. torsion spring; 22. scraper seat; 3. driving roller; 4. adjusting assembly; 41. adjusting sleeve; 411. reciprocating groove; 42. adjusting rod; 421. ball bearing; 43. adjusting ball; 5. spray assembly; 51. spray pipe; 52. nozzle; 6. guide rod; 7. transmission assembly; 71. transmission rod; 72. connecting rod; 8. liquid baffle plate; 81. guide block; 9. door panel. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-7 This application is described in further detail.

[0039] The embodiment of the present application discloses a rotary kiln fume treatment and purification device.

[0040] refer to Figure 1 A rotary kiln fume treatment and purification device includes a treatment tank 1, an air inlet 11 is opened on the top of the treatment tank 1, an air outlet 12 and a cleaning port 17 are opened on the bottom of the treatment tank 1, the air outlet 12 and the cleaning port 17 are not opened on the same side wall of the treatment tank 1, and the cleaning port 17 is covered with a door panel 9.

[0041] The flue gas enters the treatment tank 1 from the air inlet 11, and the treated flue gas is discharged from the treatment tank 1 from the air outlet 12; when the treatment tank 1 needs to be cleaned, the door panel 9 is moved to open the cleaning port 17 to clean the treatment tank 1.

[0042] refer to Figure 2 and Figure 3A plurality of baffles 2 are sequentially arranged in the processing tank 1 along the inclined direction from top to bottom, the top of the baffle 2 is hinged to the inner wall of the processing tank 1, and a torsion spring 21 is installed at the hinge between the baffle 2 and the processing tank 1.

[0043] refer to Figure 2 and Figure 4 A receiving chamber 13 is formed on the inner wall of the processing tank 1 in the vertical direction. The processing tank 1 is rotatably connected to a driving roller 3 in the receiving chamber 13 . A driving motor 14 is fixedly installed on the top of the processing tank 1 , and the output shaft of the driving motor 14 is fixed to the driving roller 3 .

[0044] refer to Figure 2 and Figure 3 An adjusting assembly 4 is provided in the processing tank 1. The number of the adjusting assemblies 4 is the same as the number of the baffles 2 and corresponds one to one. The adjusting assembly 4 includes an adjusting sleeve 41, an adjusting rod 42 and an adjusting ball 43. The adjusting sleeve 41 is sleeved on the driving roller 3 and the two are fixed. A reciprocating groove 411 is provided on the outer wall of the adjusting sleeve 41. The reciprocating groove 411 is connected from end to end. A guide rod 6 is slidably connected in the adjusting rod 42. A support frame 19 is fixed between the bottom of the guide rod 6 and the inner wall of the processing tank 1. The adjusting ball 43 is fixed at one end of the adjusting rod 42 away from the baffle 2. The adjusting ball 43 extends into the reciprocating groove 411 and the two are slidably adapted. A ball 421 is rotatably connected to one end of the adjusting rod 42 close to the baffle 2, and the ball 421 abuts against the baffle 2.

[0045] The driving motor 14 is started to drive the driving roller 3 to rotate, and the rotation of the driving roller 3 drives the adjusting sleeve 41 to rotate, so that the adjusting ball 43 slides in the reciprocating groove 411, and thus the adjusting rod 42 slides on the guide rod 6.

[0046] When the adjusting rod 42 slides upward along the guide rod 6, the adjusting rod 42 squeezes the baffle 2 through the ball 421, so that the baffle 2 rotates to a state where there is no gap between the baffle 2 and the inner wall of the treatment tank 1. At this time, the flue gas cannot pass through the baffle 2; when the adjusting rod 42 slides downward along the guide rod 6, the adjusting rod 42 drives the ball 421 to move away from the baffle 2. At this time, the torsion spring 21 releases its elastic force to drive the baffle 2 to rotate to a state where there is a gap between the baffle 2 and the inner wall of the treatment tank 1. At this time, the flue gas can pass through the baffle 2.

[0047] refer to Figure 3 and Figure 5 A liquid scraper seat 22 is sleeved on the baffle plate 2 and the two are slidably matched. A liquid scraper plate 8 is hinged on one side of the liquid scraper seat 22, and a guide block 81 is hinged on the side of the liquid scraper plate 8 away from the liquid scraper seat 22. A guide groove 15 that is slidably matched with the guide block 81 is opened on the inner wall of the processing tank 1 in the vertical direction. A return spring 16 is arranged in the guide groove 15, one end of the return spring 16 is fixed to the guide block 81, and the other end of the return spring 16 is fixed to the processing tank 1.

[0048] refer to Figure 3 A transmission assembly 7 is provided below the baffle 2, and the transmission assembly 7 includes a transmission rod 71 and a connecting rod 72. The transmission rod 71 is sleeved on the guide rod 6 and the two are slidably adapted. One end of the transmission rod 71 is ball-jointed with the wiper seat 22, and the connecting rod 72 is fixed between the adjusting rod 42 and the transmission rod 71.

[0049] When the baffle 2 rotates to the point where there is no gap between it and the treatment tank 1, the adjusting rod 42 drives the transmission rod 71 to slide downward along the guide rod 6 through the connecting rod 72, so that the transmission rod 71 drives the wiper seat 22 to slide toward the bottom of the baffle 2, thereby scraping the treatment liquid on the surface of the baffle 2; when the baffle 2 rotates to the point where there is a gap between it and the treatment tank 1, the adjusting rod 42 drives the rod through the connecting rod 72 to slide upward along the guide rod 6, so that the transmission rod 71 drives the wiper seat 22 to slide toward the top of the baffle 2, thereby driving the wiper seat 22 to reset.

[0050] When the wiper seat 22 moves toward the bottom of the baffle 2, the wiper seat 22 drives the guide block 81 to slide downward along the guide groove 15. At this time, the reset spring 16 accumulates elastic potential energy; when the wiper seat 22 moves toward the top of the baffle 2, the wiper seat 22 drives the guide block 81 to return upward along the guide groove 15. At this time, the spring releases the elastic potential energy through the guide block 81 to assist the baffle 8 in resetting.

[0051] refer to Figure 2 and Figure 6 A spray assembly 5 is arranged in the processing tank 1. The number of the spray assemblies 5 is the same as the number of the baffles 2 and corresponds one to one. The spray assembly 5 is arranged below the baffle 2. The spray assembly 5 includes a spray pipe 51 and a spray head 52. One end of the spray pipe 51 is arranged in the processing tank 1. The part of the spray pipe 51 extending into the processing tank 1 is spiral. A plurality of spray heads 52 are fixedly installed along the length direction of the spray pipe 51. The other end of the spray pipe 51 extends out of the processing tank 1 and is connected to a storage box containing the processing liquid.

[0052] The treatment liquid in the storage box enters the spray pipe 51 and is sprayed in the treatment tank 1 by the spray head 52. The spiral spray pipe 51 increases the spraying area.

[0053] refer to Figure 1 and Figure 7 A sealing seat 18 is fixedly provided in an annular shape at the cleaning port 17 of the processing tank 1. The edge of the door panel 9 fits the sealing seat 18. One side of the door panel 9 is hinged to the processing tank 1, and the other side of the door panel 9 is fixed to the sealing seat 18 by bolts.

[0054] When the processing tank 1 needs to be cleaned, the staff removes the bolts and then pulls the door panel 9 to open the cleaning port 17 to clean the inside of the processing tank 1 .

[0055] The implementation principle of the rotary kiln flue gas treatment and purification device of the present application embodiment is as follows: after the flue gas enters the treatment tank 1 from the air inlet 11, the baffle 2 rotates clockwise so that there is a gap between the baffle 2 and the inner wall of the treatment tank 1, and the flue gas can pass through the baffle 2 from the gap, and the baffle 2 rotates counterclockwise so that there is no gap between the baffle 2 and the inner wall of the treatment tank 1, and the flue gas is intercepted by the baffle 2. In the above manner, the reaction time between the flue gas and the treatment liquid is increased, thereby improving the purification effect.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary kiln fume treatment and purification device, comprising a treatment tank (1), wherein the outer wall of the treatment tank (1) is provided with an air inlet (11) and an air outlet (12), wherein: Also includes: A baffle (2), wherein a plurality of baffles (2) are arranged at intervals along the length direction of the processing tank (1), one side of the baffle (2) is hinged to the inner wall of the processing tank (1), and a torsion spring (21) is installed at the hinge between the baffle (2) and the processing tank (1); A driving roller (3), an inner wall of the processing tank (1) is provided with a receiving cavity (13) in a vertical direction, the driving roller (3) is rotatably connected in the receiving cavity (13) of the processing tank (1), and a driving motor (14) for driving the driving roller (3) to rotate is installed on the processing tank (1); Adjustment components (4), the number of the adjustment components (4) is the same as the number of the baffles (2) and corresponds one to one, and the driving roller (3) moves the baffles (2) through the adjustment components (4); A spray assembly (5), the spray assembly (5) is used to spray the treatment liquid into the interior of the treatment tank (1).

2. The rotary kiln fume treatment and purification device according to claim 1, characterized in that: The adjustment assembly (4) comprises an adjustment sleeve (41), an adjustment rod (42) and an adjustment ball (43); the adjustment sleeve (41) is sleeved on the driving roller (3) and the two are fixed to each other; a reciprocating groove (411) is provided on the outer wall of the adjustment sleeve (41); the reciprocating groove (411) is connected end to end; a guide rod (6) is slidably connected inside the adjustment rod (42); the guide rod (6) is fixed to the inner wall of the processing tank (1); one end of the adjustment rod (42) is used to squeeze the baffle (2); the adjustment ball (43) is fixed to the end of the adjustment rod (42) away from the baffle (2); the adjustment ball (43) extends into the reciprocating groove (411) and the two are slidably adapted.

3. The rotary kiln fume treatment and purification device according to claim 2, characterized in that: The baffle plate (2) is sleeved with a liquid scraping seat (22) and the two are slidably matched, and a transmission component (7) for driving the liquid scraping seat (22) to slide on the baffle plate (2) is provided on one side of the baffle plate (2).

4. The rotary kiln fume treatment and purification device according to claim 3 is characterized in that: A liquid baffle plate (8) is hingedly connected to one side of the liquid scraping seat (22); a side of the liquid baffle plate (8) away from the liquid scraping seat (22) is slidably connected to the inner wall of the processing tank (1) along the vertical direction.

5. The rotary kiln fume treatment and purification device according to claim 4, characterized in that: A guide block (81) is hingedly connected to the side of the liquid baffle plate (8) away from the liquid scraper seat (22); a guide groove (15) is provided on the inner wall of the processing tank (1) in the vertical direction and is slidably matched with the guide block (81); a return spring (16) is arranged in the guide groove (15); one end of the return spring (16) is fixed to the guide block (81); and the other end of the return spring (16) is fixed to the processing tank (1).

6. The rotary kiln fume treatment and purification device according to claim 3, characterized in that: The transmission assembly (7) comprises a transmission rod (71) and a connecting rod (72); the transmission rod (71) is sleeved on the guide rod (6) and the two are slidably matched; one end of the transmission rod (71) is ball-jointed with the liquid scraping seat (22); and the connecting rod (72) is fixed between the adjustment rod (42) and the transmission rod (71).

7. The rotary kiln fume treatment and purification device according to claim 2, characterized in that: One end of the adjusting rod (42) close to the baffle (2) is rotatably connected to a ball (421), and the ball (421) abuts against the baffle (2).

8. The rotary kiln fume treatment and purification device according to claim 1, characterized in that: The number of the spray assemblies (5) is the same as the number of the baffles (2) and corresponds one to one. The spray assembly (5) comprises a spray pipe (51) and a spray head (52). The spray pipe (51) extends into the processing tank (1), and the portion of the spray pipe (51) extending into the processing tank (1) is spiral-shaped. A plurality of spray heads (52) are fixedly installed along the length direction of the spray pipe (51).

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