A lime desulfurization variable cement device

Abstract

The present invention discloses a lime desulfurization variable cement device, which relates to the technical field of cement desulfurization equipment, including a spray tower, a transmission component and a linkage component, wherein a demister is arranged in the spray tower, a scraper is vertically slidably connected in the spray tower, an annular water pipe is rotatably connected in the spray tower, a plurality of nozzles are arranged in a circular array on the annular water pipe, each nozzle is rotatably connected with an atomizing cover, each atomizing cover is provided with a plurality of atomizing holes, the transmission component is driven by the rotation of the annular water pipe to rotate each atomizing cover, and the linkage component is driven by the rotation of the annular water pipe to make the scraper slide vertically up and down. When the invention needs to be cleaned, the annular water pipe is rotated, and each atomizing cover is rotated through the transmission component, so that the water flow sprayed by each nozzle becomes larger, and the inner wall of the spray tower and the demister are washed, and the scraper is moved vertically up and down through the linkage component to scrape off the calcium sulfite scale on the inner wall of the spray tower.

Description

Technical Field

[0001] The invention relates to the technical field of cement desulfurization equipment, in particular to a lime desulfurization variable cement device. Background Art

[0002] Lime desulfurization is a commonly used flue gas desulfurization method. Its principle is to use limestone (CaC03) atomized slurry to react chemically with sulfur dioxide (S02) in the flue gas to generate calcium sulfate (CaS04) and carbon dioxide (C02), thereby achieving the purpose of desulfurization.

[0003] For example, a Chinese patent with publication number CN213357371U and titled "A Cement Raw Material Desulfurization Device" includes a desulfurization box, in which a desulfurization structure is arranged; wherein the desulfurization structure comprises: a demister, a smoke exhaust pipe, a first nozzle, a motor, a bearing, a stirring shaft, a plurality of stirring blades with the same structure, a discharge pipe, a valve, a circulation component and a crushing component; the demister is installed in the desulfurization box, a smoke exhaust port is provided on the upper wall of the desulfurization box, and the smoke exhaust pipe is installed at the smoke exhaust port provided on the upper wall of the desulfurization box. The utility model relates to the technical field of cement raw material desulfurization, and solves the problem that the existing limestone contains sulfur. In the cement production process, if undesulfurized limestone is used, the cement raw material will contain a large amount of sulfur, thereby there is a problem of desulfurizing the lime in the cement raw material.

[0004] Although the cement raw material desulfurization device in the above patent is practical and convenient, it also has its shortcomings. The limestone method of desulfurization will also produce calcium sulfite scaling, and the inner wall of the spray tower needs to be cleaned regularly, otherwise the scaling will affect the subsequent desulfurization efficiency. Secondly, the demister often needs to be cleaned manually, and the cleaning time is long, which is time-consuming and labor-intensive. Summary of the invention

[0005] The object of the present invention is to provide a lime desulfurization variable cement device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: the lime desulfurization variable cement device comprises a spray tower, a transmission assembly and a linkage assembly, a demister is provided in the spray tower, a scraper is vertically slidably connected in the spray tower, an annular water pipe is rotatably connected in the spray tower, a plurality of nozzles are provided in a circular array on the annular water pipe, and each of the nozzles is rotatably connected to an atomizing cover, each of the atomizing covers is provided with a plurality of atomizing holes, the transmission assembly is driven by the rotation of the annular water pipe to rotate each atomizing cover, and the linkage assembly is driven by the rotation of the annular water pipe to make the scraper slide vertically up and down.

[0007] Furthermore, a first water pipe is fixedly installed on one side of the spray tower, and a second connecting rod and a second water pipe are respectively provided on both sides of the annular water pipe. The second water pipe is communicated with the annular water pipe, the second connecting rod is rotatably connected to the inner wall of the spray tower, and the first water pipe is rotatably sleeved on the first water pipe.

[0008] Further, the transmission assembly includes a first bevel gear, a second bevel gear meshing with the first bevel gear, a first connecting rod, a first gear, an internal gear meshing with the first gear, an end gear meshing with the first gear, an annular rack and a connecting block, the first bevel gear is sleeved on the first water pipe, the second bevel gear is rotatably connected in the spray tower, one end of the first connecting rod is fixedly connected to an end of the first bevel gear close to the annular water pipe, the first gear is rotatably sleeved on the other end of the first connecting rod, one end of the internal gear is fixedly connected to the inner wall of the spray tower through a plurality of fixing rods, the end gear is rotatably sleeved on the circumferential side of the annular water pipe, the annular rack is fixedly connected to one end of the end gear through a connecting block, a rotating shaft is rotatably connected in each of the nozzles, a second gear is sleeved on each of the rotating shafts, each of the atomizing covers is sleeved on each rotating shaft in one-to-one correspondence, and the annular rack is meshed and connected with each of the second gears in turn.

[0009] Furthermore, an annular groove is provided on the peripheral side surface of the annular water pipe, and two second sliding blocks are symmetrically provided on the inner wall of the end face gear, and the two second sliding blocks are both slidably connected in the annular groove.

[0010] Furthermore, the linkage assembly includes a third bevel gear meshing with the second bevel gear, a rotating rod and a first slider. The third bevel gear is horizontally rotatably connected in the spray tower, the rotating rod is coaxially fixedly connected to the bottom end of the third bevel gear, the first slider is vertically slidably sleeved on the rotating rod, and one side of the first slider is fixedly connected to the scraper.

[0011] Furthermore, a protrusion is provided in the first slider, two spiral grooves connected end to end are symmetrically provided on the rotating rod, the protrusion slides with the two spiral grooves in sequence, a slide groove is vertically provided in the spray tower, and the first slider is slidably connected in the slide groove.

[0012] Furthermore, a motor is provided on one side of the spray tower, and an output end of the motor is fixedly connected to one end of the second bevel gear through a shaft.

[0013] Furthermore, the top and bottom of the scraper are both inclined.

[0014] Furthermore, a smoke inlet pipe is provided on one side of the spray tower, and an air outlet pipe is provided on the top of the spray tower.

[0015] Compared with the prior art, the present invention provides the following beneficial effects: when the lime desulfurization variable cement device needs to be cleaned, the annular water pipe is rotated, and each atomizing cover is rotated through the transmission component, so that the water flow sprayed from each nozzle can be increased, and the inner wall of the spray tower and the demister are washed, and the scraper is moved vertically up and down through the linkage component to scrape off the calcium sulfite scale on the inner wall of the spray tower, thereby improving the cleaning efficiency and the subsequent desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0018] Figure 2 A right view of the overall structure provided by an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0020] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 A schematic diagram of a local structure provided for an embodiment of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0023] Figure 7 A schematic diagram of a transmission assembly provided in an embodiment of the present invention.

[0024] Explanation of the reference numerals: 1. spray tower; 2. smoke inlet pipe; 3. exhaust pipe; 4. motor; 5. first water pipe; 6. second water pipe; 7. first bevel gear; 8. second bevel gear; 9. third bevel gear; 10. rotating rod; 11. spiral groove; 12. first slider; 13. scraper; 14. protrusion; 15. first connecting rod; 16. first gear; 17. internal gear; 18. fixed rod; 19. end gear; 20. second slider; 21. annular water pipe; 22. connecting block; 23. annular rack; 24. rotating shaft; 25. nozzle; 26. atomizing cover; 27. second gear; 28. second connecting rod; 29. ​​demister; 30. slide groove. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1-7 The embodiment of the present invention provides a technical solution: the lime desulfurization variable cement device includes a spray tower 1, a transmission component and a linkage component. The spray tower 1 is provided with a demister 29, a scraper 13 is vertically slidably connected to the spray tower 1, and an annular water pipe 21 is rotatably connected to the spray tower 1. A plurality of nozzles 25 are arranged in a circular array on the annular water pipe 21, and each nozzle 25 is rotatably connected to an atomizing cover 26, and each atomizing cover 26 is provided with a plurality of atomizing holes. The transmission component is driven by the rotation of the annular water pipe 21 to make each atomizing cover 26 rotates, and the linkage assembly is driven by the annular water pipe 21 to make the scraper 13 slide vertically up and down. Specifically, the demister 29 is located above the annular water pipe 21. When cleaning is required, the annular water pipe 21 is rotated, and the atomizing covers 26 are rotated through the transmission assembly, so that the water flow sprayed by each nozzle 25 becomes larger, and the inner wall of the spray tower 1 and the demister 29 are washed. The scraper 13 is moved vertically up and down through the linkage assembly to scrape off the calcium sulfite scale on the inner wall of the spray tower 1, thereby improving the cleaning efficiency and the subsequent desulfurization effect.

[0027] As a preferred technical solution, a first water pipe 5 is fixedly penetrated on one side of the spray tower 1, and a second connecting rod 28 and a second water pipe 6 are respectively provided on both sides of the annular water pipe 21. The second water pipe 6 is communicated with the annular water pipe 21, and the second connecting rod 28 is rotatably connected to the inner wall of the spray tower 1, and the first water pipe 5 is rotatably sleeved on the first water pipe 5. Specifically, the second connecting rod 28 and the first water pipe 5 provide support force for both sides of the annular water pipe 21. When desulfurization is carried out, the first water pipe 5 can be externally connected to a circulation pump used for lime desulfurization. When cleaning is carried out, the first water pipe 5 can be externally connected to a water pump to flow in clean water. Preferably, the first water pipe 5 can be externally connected to a three-way pipe, and the two inlets of the three-way pipe are respectively externally connected to a circulation pump and a water pump, and both inlets are provided with a one-way valve to prevent the mixing of clean water and limestone slurry.

[0028] As a preferred technical solution, the transmission assembly includes a first bevel gear 7, a second bevel gear 8 meshing with the first bevel gear 7, a first connecting rod 15, a first gear 16, an internal gear 17 meshing with the first gear 16, an end gear 19 meshing with the first gear 16, an annular rack 23 and a connecting block 22. The first bevel gear 7 is sleeved on the first water pipe 5, and the second bevel gear 8 is rotatably connected in the spray tower 1. One end of the first connecting rod 15 is fixedly connected to one end of the first bevel gear 7 close to the annular water pipe 21. The first gear The wheel 16 is rotatably sleeved on the other end of the first connecting rod 15, one end of the internal gear 17 is fixedly connected to the inner wall of the spray tower 1 through a plurality of fixing rods 18, the end face gear 19 is rotatably sleeved on the peripheral side of the annular water pipe 21, and the annular rack 23 is fixedly connected to one end of the end face gear 19 through a connecting block 22. A rotating shaft 24 is rotatably connected in each nozzle 25, and each rotating shaft 24 is sleeved with a second gear 27. Each atomizing cover 26 is sleeved with each rotating shaft 24 in a one-to-one correspondence, and the annular rack 23 is sequentially sleeved with each second gear The gear 27 is meshed and connected. Specifically, the second bevel gear 8 rotates, and the first bevel gear 7 is driven to rotate through the meshing transmission. The first gear 16 is caused to revolve synchronously with the annular water pipe 21 through the first connecting rod 15. Since the internal gear 17 is fixed and the internal gear 17 is meshed with the first gear 16, the first gear 16 rotates during the process of revolving around the annular water pipe 21, and the end gear 19 is driven to revolve around the annular water pipe 21 through the meshing transmission with the end gear 19. At the same time, the end gear 19 is driven by the connecting block 22. The movable annular rack 23 rotates, so that the annular rack 23 meshes with each second gear 27 in turn, so that each atomizing cover 26 is unscrewed, and the water flow sprayed by the nozzle 25 is increased, so as to achieve the purpose of cleaning the inner wall of the spray tower 1 and the demister 29 during the rotation of the annular water pipe 21. Preferably, a plurality of connecting blocks 22 can be provided on the end face gear 19 in a circular array, and an annular rack 23 is provided on one side of the connecting block 22, and each annular rack 23 is meshed and connected with each second gear 27 one by one, so that each atomizing cover 26 is synchronously unscrewed.

[0029] As a preferred technical solution, an annular groove is provided on the circumferential side surface of the annular water pipe 21, and two second sliders 20 are symmetrically provided on the inner wall of the end face gear 19. The two second sliders 20 are both slidably connected in the annular groove. Specifically, through the sliding cooperation between the two second sliders 20 and the annular groove, the end face gear 19 rotates in the process of the end face gear 19 revolving with the annular water pipe 21, so that the annular rack 23 engages with each second gear 27, thereby realizing the unscrewing of each atomizing cover 26 and increasing the water flow column sprayed by the nozzle 25.

[0030] As a preferred technical solution, the linkage assembly includes a third bevel gear 9 meshing with the second bevel gear 8, a rotating rod 10 and a first slider 12. The third bevel gear 9 is horizontally rotatably connected in the spray tower 1, the rotating rod 10 is coaxially fixedly connected to the bottom end of the third bevel gear 9, the first slider 12 is vertically slidably sleeved on the rotating rod 10, and one side of the first slider 12 is fixedly connected to the scraper 13. Specifically, the second bevel gear 8 rotates, and the third bevel gear 9 is driven to rotate through the meshing transmission with the third bevel gear 9, and the rotating rod 10 is driven to rotate at the same time. By means of spiral transmission, the rotation of the rotating rod 10 drives the first slider 12 to drive the scraper 13 to move vertically up and down along the length direction of the rotating rod 10, thereby descaling the inner wall of the spray tower 1.

[0031] As a preferred technical solution, a protrusion 14 is provided in the first slider 12, and two spiral grooves 11 connected end to end are symmetrically opened on the rotating rod 10. The protrusion 14 slides with the two spiral grooves 11 in turn. A slide groove 30 is vertically opened in the spray tower 1, and the first slider 12 is slidably connected in the slide groove 30. Specifically, the size of the slide groove 30 is adapted to the size of the first slider 12. The slide groove 30 limits the circumferential rotation of the first slider 12, and through the sliding cooperation between the protrusion 14 and the two spiral grooves 11, the rotation of the rotating rod 10 drives the first slider 12 to drive the scraper 13 to move vertically up and down along the length direction of the rotating rod 10, thereby descaling the inner wall of the spray tower 1.

[0032] As a preferred technical solution, a motor 4 is provided on one side of the spray tower 1, and the output end of the motor 4 is fixedly connected to the through shaft of one end of the second bevel gear 8. Specifically, the motor 4 drives the second bevel gear 8 to rotate, so as to realize the unscrewing of each atomizing cover 26 and the up and down movement of the scraper 13 during the rotation of the annular water pipe 21. Due to the setting of the transmission component and the linkage component, the motor 4 does not need to be reversed to reset the atomizing cover 26, the annular water pipe 21 and the scraper 13. After a certain period of rotation, the atomizing cover 26, the annular water pipe 21 and the scraper 13 can all be automatically reset to the initial state.

[0033] As a preferred technical solution, the top and bottom of the scraper 13 are both inclined. Specifically, the inclined setting facilitates the upper and lower ends of the scraper 13 to scrape off the calcium sulfite scale on the inner wall of the spray tower 1.

[0034] As a preferred technical solution, a smoke inlet pipe 2 is provided on one side of the spray tower 1, and an exhaust pipe 3 is provided on the top of the spray tower 1. Specifically, the smoke enters through the smoke inlet pipe 2, floats upward and reacts with the limestone slurry atomized by the atomizing cover 26, passes through the demister 29, and finally floats out through the exhaust pipe 3.

[0035] Working principle: When the lime desulfurization variable cement device needs to be cleaned, the motor 4 drives the second bevel gear 8 to rotate, and the second bevel gear 8 drives the first bevel gear 7 to rotate through meshing transmission, and the first gear 16 is made to revolve synchronously with the annular water pipe 21 through the first connecting rod 15. Since the internal gear 17 is fixed and the internal gear 17 is meshed with the first gear 16, the first gear 16 rotates during the process of orbiting, and the meshing transmission with the end gear 19 drives the end gear 19 to rotate around the annular water pipe 21 during the process of orbiting, and at the same time drives the annular rack 23 to rotate through the connecting block 22, so that the annular rack 23 is meshed with each second gear 27 in turn, so that each atomizing cover 26 is unscrewed, and the spray of the nozzle 25 is increased. The water flow is realized during the rotation of the annular water pipe 21, so as to clean the inner wall of the spray tower 1 and the demister 29. The second bevel gear 8 rotates, and the third bevel gear 9 is driven to rotate through the meshing transmission with the third bevel gear 9, and the rotating rod 10 is driven to rotate at the same time. The spiral transmission is utilized, and the sliding cooperation between the protrusion 14 and the two spiral grooves 11 is utilized to realize the rotation of the rotating rod 10 and drive the first slider 12 to drive the scraper 13 to move vertically up and down along the length direction of the rotating rod 10, so as to descale the inner wall of the spray tower 1, improve the cleaning efficiency, and improve the subsequent desulfurization effect. The motor 4 does not need to be reversed. After driving the second bevel gear 8 to rotate for a certain period, the atomizing cover 26, the annular water pipe 21 and the scraper 13 can be automatically reset to the initial state.

[0036] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lime desulfurization variable cement device, comprising a spray tower (1), wherein a demister (29) is provided in the spray tower (1), a scraper (13) is vertically slidably connected in the spray tower (1), an annular water pipe (21) is rotatably connected in the spray tower (1), a plurality of nozzles (25) are provided in a circular array on the annular water pipe (21), and each of the nozzles (25) is rotatably connected to an atomizing cover (26), and each of the atomizing covers (26) is provided with a plurality of atomizing holes, a first water pipe (5) is fixedly penetrated on one side of the spray tower (1), a second connecting rod (28) and a second water pipe (6) are respectively provided on both sides of the annular water pipe (21), the second water pipe (6) is communicated with the annular water pipe (21), the second connecting rod (28) is rotatably connected to the inner wall of the spray tower (1), and the first water pipe (5) is rotatably sleeved on the first water pipe (5), characterized in that: Also includes: A transmission assembly, which is driven by the rotation of the annular water pipe (21) to rotate each atomizing cover (26), the transmission assembly comprising a first bevel gear (7), a second bevel gear (8) meshing with the first bevel gear (7), a first connecting rod (15), a first gear (16), an internal gear (17) meshing with the first gear (16), an end gear (19) meshing with the first gear (16), an annular rack (23) and a connecting block (22), the first bevel gear (7) being sleeved on the first water pipe (5), the second bevel gear (8) being rotatably connected in the spray tower (1), one end of the first connecting rod (15) being fixedly connected to one end of the first bevel gear (7) close to the annular water pipe (21) , the first gear (16) is rotatably sleeved on the other end of the first connecting rod (15), one end of the internal gear (17) is fixedly connected to the inner wall of the spray tower (1) through a plurality of fixing rods (18), the end face gear (19) is rotatably sleeved on the peripheral side of the annular water pipe (21), the annular rack (23) is fixedly connected to one end of the end face gear (19) through a connecting block (22), each of the spray heads (25) is rotatably connected to a rotating shaft (24), each of the rotating shafts (24) is sleeved with a second gear (27), each of the atomizing covers (26) is sleeved on each of the rotating shafts (24) in a one-to-one correspondence, and the annular rack (23) is meshed and connected with each of the second gears (27) in sequence; A linkage assembly is driven by the rotation of an annular water pipe (21) to make a scraper (13) slide vertically up and down. The linkage assembly comprises a third bevel gear (9) meshing with a second bevel gear (8), a rotating rod (10) and a first slider (12). The third bevel gear (9) is horizontally rotatably connected in the spray tower (1). The rotating rod (10) is coaxially fixedly connected to the bottom end of the third bevel gear (9). The first slider (12) is vertically slidably sleeved on the rotating rod (10). One side of the first slider (12) is fixedly connected to the scraper (13).

2. A lime desulfurization variable cement device according to claim 1, characterized in that: An annular groove is provided on the peripheral side surface of the annular water pipe (21), and two second sliding blocks (20) are symmetrically provided on the inner wall of the end face gear (19), and the two second sliding blocks (20) are both slidably connected in the annular groove.

3. A lime desulfurization variable cement device according to claim 1, characterized in that: A protrusion (14) is arranged inside the first sliding block (12), two spiral grooves (11) connected end to end are symmetrically provided on the rotating rod (10), the protrusion (14) slides with the two spiral grooves (11) in sequence, a slide groove (30) is vertically provided inside the spray tower (1), and the first sliding block (12) is slidably connected in the slide groove (30).

4. A lime desulfurization variable cement device according to claim 1, characterized in that: A motor (4) is provided on one side of the spray tower (1), and an output end of the motor (4) is fixedly connected to one end of a second bevel gear (8) through a shaft.

5. A lime desulfurization variable cement device according to claim 1, characterized in that: The top and bottom of the scraper (13) are both inclined.

6. A lime desulfurization variable cement device according to claim 1, characterized in that: A smoke inlet pipe (2) is provided on one side of the spray tower (1), and an air outlet pipe (3) is provided on the top of the spray tower (1).

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