Desulfurized gypsum drying line dust and waste gas treatment device

Abstract

The invention belongs to the field of dust and waste gas treatment, and particularly relates to a desulfurized gypsum drying line dust and waste gas treatment device which comprises a shell, a gas inlet pipe and a gas outlet pipe are arranged at the lower end of the left side and the upper end of the right side of the shell correspondingly, a mounting plate is fixedly connected to one side of the inner cavity wall of the shell, and a dust removal cloth bag is fixedly connected to the middle of the mounting plate. The shell is further provided with an expansion type cleaning mechanism used for cleaning dust on the outer wall of the dust removal cloth bag. According to the invention, the expanding type cleaning mechanism is utilized, the dust collecting bag is firstly supported, and then the dust on the surface of the dust collecting bag is cleaned, so that the condition that the dust is not easy to remove from the surface of the dust collecting bag due to the fact that the dust is hidden at the wrinkles of the dust collecting bag is avoided, and the cleaning effect on the dust on the surface of the dust collecting bag is further improved.

Description

Technical Field

[0001] The invention belongs to the field of dust waste gas treatment, in particular to a dust waste gas treatment device for a desulfurization gypsum drying line. Background Art

[0002] The desulfurization gypsum drying line is a mechanical production line for drying desulfurization gypsum materials containing water. In the drying line, the desulfurization gypsum needs to go through multiple links such as transportation, dispersion, and drying. These links may generate dust exhaust gas, which will pollute the environment and affect the air quality. In addition, the dust exhaust gas contains a large number of tiny particles, which are harmful to human health. In order to reduce environmental pollution and protect the health of employees, the dust exhaust gas needs to be treated.

[0003] The patent with announcement number CN218653437U discloses an exhaust gas treatment and dust removal equipment, including a shell with a conical bottom cross-section, a mounting plate fixedly connected between the side walls of the shell inner cavity, the mounting plate divides the shell inner cavity into a dust removal chamber and an air outlet chamber, the shell side walls are respectively connected with an air inlet pipe and an air outlet pipe, the air inlet pipe is located in the dust removal chamber, the air outlet pipe is located in the air outlet chamber, a dust bag is installed on the mounting plate, the dust bag is located in the dust removal chamber, and a vibration mechanism is installed on the side wall of the shell, the vibration mechanism is detachably connected to the dust bag. The patent arranges the mounting plate, the dust bag and the vibration mechanism, so that when the exhaust gas is treated, the exhaust gas can be filtered through the dust bag during the transmission process in the shell, thereby removing the dust entrained in the exhaust gas, and the vibration mechanism can beat and vibrate the dust bag during the filtering process, thereby avoiding clogging of the filter holes of the dust bag and improving the exhaust gas dust removal efficiency.

[0004] However, the above technical solution still has the following deficiencies in practical application: The exhaust gas enters the shell through the air inlet pipe, is filtered by the dust collector bag, and is discharged from the air outlet pipe. The dust adheres to the surface of the dust collector bag, thereby realizing the exhaust gas treatment work. In addition, in order to prevent the filter holes of the dust collector bag from being blocked by dust and affecting the dust removal efficiency, a vibration mechanism is provided. The vibration mechanism can be used to beat and vibrate the dust collector bag to make the dust on the surface of the dust collector bag fall off. However, since the dust collector bag is made of flexible material, the dust collector bag will have wrinkles, and some dust may be hidden in the wrinkles of the dust collector bag. When the vibration mechanism beats the dust collector bag, the dust hidden in the wrinkles is not easy to fall off, thereby affecting the cleaning effect. At the same time, when the dust collector bag is beaten, the dust attached to the surface of the dust collector bag will be lifted up, and the lifted dust may adhere to other positions on the surface of the dust collector bag, which also affects the cleaning effect of the dust collector bag.

[0005] To this end, the present invention provides a dust waste gas treatment device for a desulfurization gypsum drying line. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a dust exhaust gas treatment device for a desulfurization gypsum drying line.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a desulfurized gypsum drying line dust exhaust gas treatment device, comprising a shell, the lower left end and the upper right end of the shell are respectively provided with an air inlet pipe and an air outlet pipe, a mounting plate is fixedly connected to one side of the inner cavity wall of the shell, a dust bag is fixedly connected to the middle of the mounting plate, and an expansion cleaning mechanism for cleaning the dust on the outer wall of the dust bag is also provided on the shell; The expansion cleaning mechanism includes a sliding rod 1 fixedly connected to one side of the upper end surface of the inner cavity of the shell, the sliding rod 1 is fixedly connected to one side of the mounting plate, the sliding rod 1 is slidably connected to a lifting ring, and both sides of the lower end surface of the lifting ring are fixedly connected to sliding columns, the sliding column is slidably connected to a cover body, and a rotating ring is rotatably provided on the upper end surface of the inner cavity of the cover body, and a plurality of brushes are provided on the inner ring of the rotating ring. A sleeve is fixedly connected to one side of the upper end of the shell, the sleeve is slidably connected to a sliding rod 2, and the lower end of the sliding rod 2 is fixedly connected to a fixed disk, and a plurality of adjusting rods are radially slidably connected to the fixed disk, one end of the adjusting rod is fixedly connected to a plate body 1, and one side of the plate body 1 is fixedly connected to a plate body 2, and the plate body 2 is plugged into and slidably connected to the groove of the adjacent plate body 1.

[0008] Preferably, a turntable is rotatably provided at the middle of the upper end surface of the fixed plate, and a plurality of connecting rods are rotatably provided at the upper end surface of the turntable, and one end of the connecting rod is rotatably connected to one end of the adjusting rod.

[0009] Preferably, a frame is fixedly connected to the middle of the upper end surface of the shell, the upper end of the sleeve is fixedly connected to the frame, a threaded rod 2 is fixedly connected to one side of the upper end surface of the fixed plate, the threaded rod 2 is threadedly connected to a threaded barrel, the threaded barrel is rotatably arranged on the upper side of the shell, and the upper end of the threaded barrel is rotatably arranged on the frame, a motor 1 is fixedly connected to one side of the upper end surface of the frame, and the output end of the motor 1 is fixedly connected to the upper end of the threaded barrel.

[0010] Preferably, a threaded rod 1 is rotatably provided on one side of the mounting plate, the upper end of the threaded rod 1 is rotatably provided on the shell, a motor 6 is fixedly connected to one side of the upper end surface of the shell, the output end of the motor 6 is fixedly connected to one end of the threaded rod 1, and the threaded rod 1 is threadedly connected to the lifting ring.

[0011] Preferably, a gear is rotatably provided on one side of the upper end surface of the inner cavity wall of the cover body, a tooth block is provided on the outer ring of the rotating ring, the gear and the tooth block of the outer ring of the rotating ring are meshed with each other, a motor three is fixedly connected to one side of the upper end surface of the cover body, and the output end of the motor three is fixedly connected to the gear.

[0012] Preferably, a crank is rotatably provided on one side of the upper end surface of the lifting ring, a rectangular block is rotatably provided on one end of the crank, a slide groove rod is fixedly connected to one side of the upper end surface of the cover body, and the rectangular block is inserted into the slide groove of the slide groove rod and is slidably connected thereto.

[0013] Preferably, a second motor is fixedly connected to one side of the upper end surface of the lifting ring, and an output end of the second motor is fixedly connected to one end of the crank.

[0014] Preferably, a motor five is fixedly connected to the middle portion of the lower end surface of the fixed disk, and an output end of the motor five is fixedly connected to the rotating disk.

[0015] Preferably, a cover body is rotatably provided on one side of the lower end of the cover body, a motor four is fixedly connected to one side of the lower end of the cover body, and an output end of the motor four is fixedly connected to one end of the cover body.

[0016] Preferably, an ash discharge pipe is provided at the bottom of the shell, and a valve is provided on the ash discharge pipe.

[0017] The beneficial effects of the present invention are as follows: 1. The dust exhaust gas treatment device of the desulfurization gypsum drying line described in the present invention connects the air inlet pipe with the exhaust gas inlet pipe on the desulfurization gypsum drying line. After the exhaust gas enters the shell, it will pass through the dust removal bag and be discharged from the exhaust pipe. The dust removal bag will intercept the dust in the exhaust gas to remove the dust entrained in the exhaust gas, thereby avoiding the dust in the exhaust gas from polluting the environment and affecting the workers.

[0018] 2. The dust exhaust gas treatment device of the desulfurization gypsum drying line described in the present invention utilizes an expansion cleaning mechanism. When it is necessary to clean the dust attached to the outer wall of the dust bag, the plate body 1 and the plate body 2 are driven to extend into the dust bag, and then the plate body 1 and the plate body 2 are driven away from the axis of the fixed disk at the same time until the plate body 1 and the plate body 2 are in contact with the inner wall of the dust bag. The dust bag can be propped up under the action of the expansion of the plate body 1 and the plate body 2, and the wrinkles on the surface of the dust bag can be removed to a greater extent. The dust collector is operated by a user, and the dust collector is moved by the pressure relief valve. The dust collector is operated by a pressure relief valve, and the dust collector is moved by the pressure relief valve. The dust collector is operated by a pressure relief valve, and the dust collector is moved by the pressure relief valve. The dust is not easily removed from the surface of the dust bag, which further improves the cleaning effect of the dust on the surface of the dust bag. In addition, since the hood body and the inner circle of the cover body are in close contact with the surface of the dust bag, the dust raised by the brush will only be concentrated in the cavity formed by the hood body and the cover body, and the dust in the cavity will drop as the hood body descends until the hood body is completely separated from the dust bag. The hood body and the cover body can be used to intercept the raised dust during the cleaning process, thereby avoiding the raised dust from adhering to the area that has been cleaned by the dust bag, thereby affecting the cleaning effect. After the hood body and the cover body are separated from the dust bag, the cover body rotates ninety degrees and drives the hood body to vibrate, shaking off the dust remaining in the hood body cavity, thereby achieving the removal of the residual dust in the hood body cavity, avoiding the situation where too much dust accumulates in the hood body cavity, causing the dust to overflow from the hood body cavity and adhere to the surface of the dust bag again, thereby increasing the difficulty of cleaning.

[0019] 3. The dust exhaust gas treatment device for the desulfurization gypsum drying line described in the present invention can discharge the dust remaining in the shell by opening the valve on the ash discharge pipe after the dust cleaning work on the surface of the dust bag is completed, thereby realizing the collection of the residual dust inside the shell and avoiding the accumulation of dust inside the shell, which causes the subsequent exhaust gas to blow the dust into the surface of the dust bag, causing the filter holes of the dust bag to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of a half-section of the shell; Figure 3 It is a schematic diagram of the three-dimensional structure of the dust bag; Figure 4yes Figure 3 A partial enlarged view of the middle part; Figure 5 yes Figure 3 A partial enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure at the mounting plate; Figure 7 It is a schematic diagram of the three-dimensional structure at the slide rod; Figure 8 It is a schematic diagram of the three-dimensional structure at the fixed disk; Fig. 9 It is a schematic diagram of the three-dimensional structure of the cover body (the cover body is hidden); Fig.10 yes Fig. 9 A partial enlarged view of point C in the middle; Fig.11 It is a schematic diagram of the three-dimensional structure of the frame; Fig.12 It is a schematic diagram of the three-dimensional structure of the plate body 1 and the plate body 2; Fig.13 It is a schematic diagram of the three-dimensional structure of the cover.

[0022] In the figure: 1. shell; 2. air inlet pipe; 3. air outlet pipe; 4. frame; 5. ash discharge pipe; 6. motor one; 7. threaded cylinder; 8. sleeve; 9. threaded rod one; 10. slide rod one; 11. plate one; 12. plate two; 13. dust bag; 14. mounting plate; 15. lifting ring; 16. cover body; 17. cover body; 18. motor two; 19. slide rod; 20. crank; 21. motor three; 22. slide column; 23. gear; 24. motor four; 25. threaded rod two; 26. slide rod two; 27. fixed plate; 28. motor five; 29. ​​connecting rod; 30. turntable; 31. adjusting rod; 32. rectangular block; 33. rotating ring; 34. brush; 35. motor six. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please refer to Figure 1-Figure 13 The present invention provides a technical solution: a dust exhaust gas treatment device for a desulfurized gypsum drying line, comprising a shell 1, an air inlet pipe 2 and an air outlet pipe 3 are respectively arranged at the lower left end and the upper right end of the shell 1, a mounting plate 14 is fixedly connected to one side of the inner cavity wall of the shell 1, a dust bag 13 is fixedly connected to the middle of the mounting plate 14, and an expansion cleaning mechanism for cleaning the dust on the outer wall of the dust bag 13 is also arranged on the shell 1; The expansion cleaning mechanism includes a slide bar 10 fixedly connected to one side of the upper end surface of the inner cavity of the shell 1, the slide bar 10 is fixedly connected to one side of the mounting plate 14, the slide bar 10 is slidably connected to a lifting ring 15, both sides of the lower end surface of the lifting ring 15 are fixedly connected to slide columns 22, the slide column 22 is slidably connected to a cover body 17, a rotating ring 33 is rotatably provided on the upper end surface of the inner cavity of the cover body 17, and a plurality of brushes 34 are provided on the inner ring of the rotating ring 33, a sleeve 8 is fixedly connected to one side of the upper end of the shell 1, the sleeve 8 is slidably connected to a slide bar 26, the lower end of the slide bar 26 is fixedly connected to a fixed disk 27, and a plurality of adjusting rods 31 are slidably connected to the fixed disk 27 along the radial direction, one end of the adjusting rod 31 is fixedly connected to a plate body 11, one side of the plate body 11 is fixedly connected to a plate body 212, and the plate body 212 is plugged into and slidably connected to the groove of the adjacent plate body 11.

[0025] In this embodiment, Figure 1-Figure 13 As shown, a rotating disk 30 is rotatably provided at the middle of the upper end surface of the fixed disk 27 , and a plurality of connecting rods 29 are rotatably provided at the upper end surface of the rotating disk 30 , and one end of the connecting rod 29 is rotatably connected to one end of the adjusting rod 31 .

[0026] A frame 4 is fixedly connected to the middle of the upper end surface of the shell body 1, the upper end of the sleeve 8 is fixedly connected to the frame body 4, a threaded rod 25 is fixedly connected to one side of the upper end surface of the fixed plate 27, the threaded rod 25 is threadedly connected to a threaded barrel 7, the threaded barrel 7 is rotatably arranged on the upper side of the shell body 1, and the upper end of the threaded barrel 7 is rotatably arranged on the frame body 4, a motor 6 is fixedly connected to one side of the upper end surface of the frame body 4, and the output end of the motor 6 is fixedly connected to the upper end of the threaded barrel 7.

[0027] A threaded rod 9 is rotatably provided on one side of the mounting plate 14, and the upper end of the threaded rod 9 is rotatably provided on the shell 1. A motor 6 35 is fixedly connected to one side of the upper end surface of the shell 1, and the output end of the motor 6 35 is fixedly connected to one end of the threaded rod 9, and the threaded rod 9 is threadedly connected to the lifting ring 15.

[0028] A gear 23 is rotatably provided on one side of the upper end surface of the inner cavity wall of the cover body 17, and a tooth block is provided on the outer ring of the rotating ring 33. The gear 23 and the tooth block of the outer ring of the rotating ring 33 are meshed with each other. A motor three 21 is fixedly connected to one side of the upper end surface of the cover body 17, and the output end of the motor three 21 is fixedly connected to the gear 23.

[0029] A crank 20 is rotatably provided on one side of the upper end surface of the lifting ring 15, and a rectangular block 32 is rotatably provided on one end of the crank 20. A slide rod 19 is fixedly connected to one side of the upper end surface of the cover body 17, and the rectangular block 32 is inserted into the slide groove of the slide rod 19 and is slidably connected thereto.

[0030] A second motor 18 is fixedly connected to one side of the upper end surface of the lifting ring 15 , and an output end of the second motor 18 is fixedly connected to one end of a crank 20 .

[0031] A motor 5 28 is fixedly connected to the middle of the lower end surface of the fixed disk 27 , and an output end of the motor 5 28 is fixedly connected to the rotating disk 30 .

[0032] A cover body 16 is rotatably provided on one side of the lower end of the cover body 17 , and a motor 24 is fixedly connected to one side of the lower end of the cover body 17 , and an output end of the motor 24 is fixedly connected to one end of the cover body 17 .

[0033] Specifically, when the existing waste gas treatment and dust removal equipment is in use, the waste gas enters the housing 1 through the air inlet pipe 2, is filtered by the dust bag 13, and is discharged from the air outlet pipe 3. The dust adheres to the surface of the dust bag 13, thereby achieving the waste gas treatment work. In addition, in order to prevent the filter holes of the dust bag 13 from being blocked by dust and affecting the dust removal efficiency, a vibration mechanism is provided. Through the vibration mechanism, the dust bag 13 can be vibrated to make the dust on the surface of the dust bag 13 fall off. However, due to Since the dust bag 13 is made of a flexible material, the dust bag 13 will have wrinkles, and some dust may be hidden in the wrinkles of the dust bag 13. When the vibration mechanism beats the dust bag 13, the dust hidden in the wrinkles is not easy to fall off, thereby affecting the cleaning effect. At the same time, when the dust bag 13 is beaten, the dust attached to the surface of the dust bag 13 will be lifted up, and the lifted dust may be attached to other positions on the surface of the dust bag 13, which also affects the cleaning effect of the dust bag 13. Therefore, in order to solve the above problems, when the present embodiment is in use, the air inlet pipe 2 is connected to the exhaust gas inlet pipe on the desulfurized gypsum drying line. After the exhaust gas enters the shell 1, it will pass through the dust bag 13 and be discharged from the exhaust pipe 3. The dust bag 13 will intercept the dust in the exhaust gas to remove the dust entrained in the exhaust gas, thereby avoiding the dust in the exhaust gas from polluting the environment and affecting the staff; when it is necessary to clean the dust attached to the outer wall of the dust bag 13, the motor 1 6 is used to drive the threaded cylinder 7 to rotate, so that the threaded rod 25 and the sliding rod 26 can move downward at the same time, so that the fixed plate 27 descends, and the plate body 1 11 and the plate body 2 12 extend into the dust bag 13, and then the motor 1 is used to clean the dust attached to the outer wall of the dust bag 13. The five 28 drives the rotating disk 30 to rotate, so that the multiple connecting rods 29 can rotate at the same time, so that the multiple adjusting rods 31 can slide radially on the fixed disk 27 at the same time, and the plate body 11 and the plate body 2 12 are away from the axis of the fixed disk 27, and the plate body 2 12 slides in the groove of the adjacent plate body 1 11 until the plate body 1 11 and the plate body 2 12 are in contact with the inner wall of the dust bag 13, and the dust bag 13 can be propped up under the action of the expansion of the plate body 11 and the plate body 2 12, and there is no gap between the multiple plate bodies 1 11 and the plate body 2 12, and there will be no propping up dead angle. Since the dust bag 13 is propped up, the wrinkles on the surface of the dust bag 13 are reduced to a large extent, and the propped up dust bag 13 and the cover body 17. The inner edge of the cover body 16 is in close contact with the end of the brush 34. At this time, the motor 3 21 and the motor 6 35 can be started at the same time. When the motor 3 21 drives the gear 23 to rotate, the rotating ring 33 will also rotate, and the brush 34 on its inner ring can be used to clean the dust attached to the surface of the dust bag 13. At the same time, with the rotation of the threaded rod 9, the cover body 17 is also continuously descending, so that the surface of the dust bag 13 can be cleaned evenly from top to bottom, avoiding the situation that the dust is blocked in the filter holes of the dust bag 13, thereby affecting the subsequent dust removal efficiency. In addition, by first propping up the dust bag 13 and then cleaning the dust on its surface, the dust is avoided from being hidden in the dust bag. The wrinkles of the dust bag 13 make it difficult for the dust to be removed from the surface of the dust bag 13, which further improves the cleaning effect of the dust on the surface of the dust bag 13. In addition, since the inner circle of the cover body 17 and the cover body 16 are in close contact with the surface of the dust bag 13, the dust raised by the brush 34 will only be concentrated in the cavity formed by the cover body 17 and the cover body 16, and the dust in the cavity will fall as the cover body 17 descends until the cover body 17 is completely separated from the dust bag 13. During the cleaning process, the cover body 17 and the cover body 16 can be used to intercept the raised dust, thereby avoiding the raised dust from adhering to the area that has been cleaned by the dust bag 13, thereby affecting the cleaning effect. Since the hood 17 and the cover 16 intercept the raised dust, dust will also adhere to the cavity formed by the hood 17 and the cover 16. When the dust accumulates more in the cavity, it will cause the dust to overflow from the cavity, and then the dust will adhere to the surface of the dust bag 13 again, which increases the difficulty of cleaning. Therefore, in order to avoid this problem, after the hood 17 and the cover 16 are separated from the dust bag 13, the motor 4 24 drives the cover 16 to rotate 90 degrees to make the dust accumulated in the cavity fall out. At the same time, the motor 2 18 drives the crank 20 to rotate, and the crank 20 drives the rectangular block 32 to make a circular motion and slide in the slide groove of the slide groove rod 19, so that the slide groove rod 19 can reciprocate up and down, and the cover body 17 slides back and forth on the slide column 22, so that the cover body 17 vibrates, and the dust remaining in the inner cavity of the cover body 17 is shaken off, thereby realizing the removal of the residual dust in the inner cavity of the cover body 17, avoiding the situation that the dust accumulates too much in the inner cavity of the cover body 17, causing the dust to overflow from the inner cavity of the cover body 17 and adhere to the surface of the dust bag 13 again, thereby increasing the difficulty of cleaning.

[0034] In this embodiment, Figure 1 and Figure 2 As shown, a dust discharge pipe 5 is provided at the bottom of the shell 1 , and a valve is provided on the dust discharge pipe 5 .

[0035] Specifically, after the dust cleaning work on the surface of the dust bag 13 is completed, the dust remaining in the shell 1 can be discharged by opening the valve on the dust discharge pipe 5, thereby realizing the collection of the residual dust in the shell 1 and avoiding the accumulation of dust in the shell 1, which causes the subsequent exhaust gas to blow the dust into the surface of the dust bag 13, causing the filter holes of the dust bag 13 to be blocked.

[0036] Working principle: Connect the air inlet pipe 2 with the exhaust gas inlet pipe on the desulfurized gypsum drying line. After the exhaust gas enters the shell 1, it will pass through the dust bag 13 and be discharged from the exhaust pipe 3. The dust bag 13 will intercept the dust in the exhaust gas to remove the dust entrained in the exhaust gas, thereby realizing the treatment of the exhaust gas and avoiding the dust in the exhaust gas from polluting the environment and affecting the staff; when it is necessary to clean the dust attached to the outer wall of the dust bag 13, the motor 16 is used to drive the threaded cylinder 7 to rotate, so that the threaded rod 25 and the sliding rod 26 can move downward at the same time, so that the fixed plate 27 descends, and the plate body 11 and the plate body 21 extend into the dust bag 13, and then the motor 5 28 is used. By driving the turntable 30 to rotate, the multiple connecting rods 29 can be rotated at the same time, and the multiple adjusting rods 31 can slide radially on the fixed plate 27 at the same time, and the plate body 11 and the plate body 2 12 are away from the axis of the fixed plate 27, and the plate body 2 12 slides in the groove of the adjacent plate body 1 11 until the plate body 1 11 and the plate body 2 12 are in contact with the inner wall of the dust bag 13, and the dust bag 13 can be propped up under the action of the expansion of the plate body 11 and the plate body 2 12, and there is no gap between the multiple plate bodies 1 11 and the plate body 2 12, and there will be no propping up dead angle. Since the dust bag 13 is propped up, the wrinkles on the surface of the dust bag 13 are reduced to a large extent, and the propped up dust bag 13 and the cover body 17 are close to each other. , the inner edge of the cover body 16 is in close contact with the end of the brush 34. At this time, the motor three 21 and the motor six 35 can be started at the same time. When the motor three 21 drives the gear 23 to rotate, the rotating ring 33 will also rotate, and the brush 34 on its inner ring can be used to clean the dust attached to the surface of the dust bag 13. At the same time, with the rotation of the threaded rod 9, the cover body 17 is also continuously descending, so that the surface of the dust bag 13 can be evenly cleaned from top to bottom, avoiding the situation that the dust is blocked in the filter holes of the dust bag 13, thereby affecting the subsequent dust removal efficiency. In addition, by first propping up the dust bag 13 and then cleaning the dust on its surface, the dust is avoided from being hidden in the dust bag. The wrinkles of the dust bag 13 make it difficult for the dust to be removed from the surface of the dust bag 13, which further improves the cleaning effect of the dust on the surface of the dust bag 13. In addition, since the inner circle of the cover body 17 and the cover body 16 are in close contact with the surface of the dust bag 13, the dust raised by the brush 34 will only be concentrated in the cavity formed by the cover body 17 and the cover body 16, and the dust in the cavity will fall as the cover body 17 falls until the cover body 17 is completely separated from the dust bag 13. During the cleaning process, the cover body 17 and the cover body 16 can be used to intercept the raised dust, thereby avoiding the raised dust from adhering to the area that has been cleaned by the dust bag 13, thereby affecting the cleaning effect.Since the hood 17 and the cover 16 intercept the raised dust, dust will also be attached to the cavity formed by the hood 17 and the cover 16. When the dust accumulates more in the cavity, it will cause the dust to overflow from the cavity, and then the dust will adhere to the surface of the dust bag 13 again, which increases the difficulty of cleaning. Therefore, in order to avoid this problem, after the hood 17 and the cover 16 are separated from the dust bag 13, the motor 4 24 drives the cover 16 to rotate 90 degrees to make the dust accumulated in the cavity fall out. At the same time, the motor 2 18 is used to drive the crank 20 to rotate, and the crank 20 drives the rectangular block 32 to make a circular motion and slide in the slide groove of the slide groove rod 19, so that the slide groove rod 19 can reciprocate up and down, and the hood 17 The reciprocating sliding on the slide column 22 causes the cover body 17 to vibrate, and the dust remaining in the inner cavity of the cover body 17 is shaken off, thereby achieving the removal of the residual dust in the inner cavity of the cover body 17, avoiding the situation where the dust accumulates in the inner cavity of the cover body 17, causing the dust to overflow from the inner cavity of the cover body 17 and adhere to the surface of the dust bag 13 again, thereby increasing the difficulty of cleaning. When the dust cleaning work on the surface of the dust bag 13 is completed, the valve on the dust discharge pipe 5 can be opened to discharge the dust remaining in the shell 1, thereby achieving the collection of the residual dust in the shell 1, avoiding the accumulation of dust in the shell 1, causing the subsequent exhaust gas to blow the dust into the surface of the dust bag 13, causing the filter holes of the dust bag 13 to be blocked. ;

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dust exhaust gas treatment device for a desulfurized gypsum drying line, comprising a housing (1), characterized in that: An air inlet pipe (2) and an air outlet pipe (3) are respectively arranged at the lower left end and the upper right end of the shell (1); a mounting plate (14) is fixedly connected to one side of the inner cavity wall of the shell (1); a dust bag (13) is fixedly connected to the middle of the mounting plate (14); and an expansion cleaning mechanism for cleaning dust from the outer wall of the dust bag (13) is also arranged on the shell (1); The expansion cleaning mechanism comprises a slide rod (10) fixedly connected to one side of the upper end surface of the inner cavity of the shell (1), the slide rod (10) being fixedly connected to one side of the mounting plate (14), the slide rod (10) being slidably connected to a lifting ring (15), both sides of the lower end surface of the lifting ring (15) being fixedly connected to slide columns (22), the slide columns (22) being slidably connected to a cover body (17), the upper end surface of the inner cavity of the cover body (17) being rotatably provided with a rotating ring (33), the inner ring of the rotating ring (33) being provided with a plurality of brushes (33). 4), a sleeve (8) is fixedly connected to one side of the upper end of the shell (1), a second slide rod (26) is slidably connected to the sleeve (8), a fixed plate (27) is fixedly connected to the lower end of the second slide rod (26), a plurality of adjustment rods (31) are radially slidably connected to the fixed plate (27), one end of the adjustment rod (31) is fixedly connected to a plate body (11), one side of the plate body (11) is fixedly connected to a plate body (12), and the plate body (12) is plugged into and slidably connected to a groove of an adjacent plate body (11).

2. A desulfurization gypsum drying line dust exhaust gas treatment device according to claim 1, characterized in that: A rotating disk (30) is rotatably disposed in the middle of the upper end surface of the fixed disk (27), and a plurality of connecting rods (29) are rotatably disposed on the upper end surface of the rotating disk (30), wherein one end of the connecting rod (29) is rotatably connected to one end of the adjusting rod (31).

3. A desulfurization gypsum drying line dust exhaust gas treatment device according to claim 1, characterized in that: The middle part of the upper end surface of the shell (1) is fixedly connected to a frame (4), the upper end of the sleeve (8) is fixedly connected to the frame (4), one side of the upper end surface of the fixed plate (27) is fixedly connected to a threaded rod 2 (25), the threaded rod 2 (25) is threadedly connected to a threaded barrel (7), the threaded barrel (7) is rotatably arranged on the upper side of the shell (1), and the upper end of the threaded barrel (7) is rotatably arranged on the frame (4), one side of the upper end surface of the frame (4) is fixedly connected to a motor 1 (6), and the output end of the motor 1 (6) is fixedly connected to the upper end of the threaded barrel (7).

4. A desulfurization gypsum drying line dust exhaust gas treatment device according to claim 1, characterized in that: A threaded rod (9) is rotatably mounted on one side of the mounting plate (14); the upper end of the threaded rod (9) is rotatably mounted on the housing (1); a motor (35) is fixedly connected to one side of the upper end surface of the housing (1); an output end of the motor (35) is fixedly connected to one end of the threaded rod (9); and the threaded rod (9) is threadably connected to the lifting ring (15).

5. The dust exhaust gas treatment device for a desulfurized gypsum drying line according to claim 1 is characterized in that: A gear (23) is rotatably provided on one side of the upper end surface of the inner cavity wall of the cover body (17), a tooth block is provided on the outer ring of the rotating ring (33), the gear (23) and the tooth block on the outer ring of the rotating ring (33) are meshed with each other, and a motor three (21) is fixedly connected to one side of the upper end surface of the cover body (17), and the output end of the motor three (21) is fixedly connected to the gear (23).

6. The dust exhaust gas treatment device of a desulfurized gypsum drying line according to claim 1 is characterized in that: A crank (20) is rotatably provided on one side of the upper end surface of the lifting ring (15), and a rectangular block (32) is rotatably provided on one end of the crank (20). A slide groove rod (19) is fixedly connected to one side of the upper end surface of the cover body (17), and the rectangular block (32) is inserted into the slide groove of the slide groove rod (19) and is slidably connected thereto.

7. A desulfurization gypsum drying line dust exhaust gas treatment device according to claim 6, characterized in that: A second motor (18) is fixedly connected to one side of the upper end surface of the lifting ring (15), and an output end of the second motor (18) is fixedly connected to one end of a crank (20).

8. The dust exhaust gas treatment device for a desulfurized gypsum drying line according to claim 2 is characterized in that: A motor five (28) is fixedly connected to the middle portion of the lower end surface of the fixed disk (27), and an output end of the motor five (28) is fixedly connected to the rotating disk (30).

9. The dust exhaust gas treatment device of a desulfurized gypsum drying line according to claim 1 is characterized in that: A cover body (16) is rotatably provided on one side of the lower end of the cover body (17), a motor four (24) is fixedly connected to one side of the lower end of the cover body (17), and an output end of the motor four (24) is fixedly connected to one end of the cover body (17).

10. The dust exhaust gas treatment device of a desulfurized gypsum drying line according to claim 1 is characterized in that: The bottom of the shell (1) is provided with an ash discharge pipe (5), and a valve is provided on the ash discharge pipe (5).

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