A medium dust-containing vacuum negative pressure suction device

Abstract

The application relates to the technical field of tail gas treatment, in particular to a medium dust-containing vacuum negative pressure suction device which solves the problems of low service life of equipment due to impurities, high equipment operation cost and large operation amount, and comprises a cyclone separator main body, a discharging pipe is communicated with the bottom end of the cyclone separator main body, and a cleaning mechanism is arranged in the cyclone separator main body. The cyclone separator main body, a demister main body, a vacuum buffer tank main body and a claw type vacuum pump can be suitable for negative pressure suction of tail gas systems containing dust, liquid phase and the like, the overall equipment has simple structure, reasonable system composition, high efficiency and long service life. The cleaning mechanism and the knocking mechanism are arranged, so that the adhesion of impurities on the inner wall of the cyclone separator main body can be avoided to influence normal use. The dispersing mechanism is arranged, so that the discharging pipe at the bottom end of the cyclone separator main body can be prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas treatment, in particular to a medium containing dust vacuum negative pressure suction device. BACKGROUND

[0002] In petrochemical and chemical enterprises, various production processes need vacuum environment, and the vacuum system will affect the operation of the vacuum pump due to the dust, easily condensed and other media in the suction tail gas, and even cause damage to the equipment, especially the polymerization kettle tail gas in the polymerization material production process, which contains a lot of impurities with strong adsorption and a lot of dust, and also contains easily condensed gas medium. If the tail gas directly enters the vacuum equipment, the service life of the equipment will be greatly reduced. The conventional scheme generally uses standby vacuum unit, fault switching, or imports a buffer tank for general separation. This scheme has the problems of high equipment operation cost, large operation amount, etc. SUMMARY

[0003] The purpose of the present application is to provide a medium containing dust vacuum negative pressure extraction system which can avoid the problems of reducing the service life of the equipment due to impurities, high equipment operation cost and large operation amount, to solve the problems raised in the background technology.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a medium containing dust vacuum negative pressure suction device, comprising a cyclone separator body, a lower discharge pipe is communicated with the bottom end of the cyclone separator body, a cleaning mechanism is arranged in the cyclone separator body, which is used to cooperate with the cyclone separator body to scrape off the stubborn impurities adhered to the inner wall of the cyclone separator body after work, a knocking mechanism is arranged on the outer wall of the cyclone separator body, which is used to cooperate with the cleaning mechanism to shake off the impurities adhered to the inner wall of the cyclone separator body, a dispersion mechanism is arranged in the lower discharge pipe, which is used to cooperate with the cleaning mechanism and the knocking mechanism to prevent the inside of the lower discharge pipe from being blocked, a multi-stage purification mechanism is connected to the air outlet end of the cyclone separator body, and a material collecting mechanism is arranged at the bottom end of the lower discharge pipe.

[0005] Preferably, the knocking mechanism comprises a fixed frame and a plurality of knocking columns, the fixed frame is fixedly connected to the outer wall of the cyclone separator body, the lower end of the fixed frame is fixedly connected with a support rod, the lower end of the support rod is fixedly installed with a second electric push rod, the telescopic shaft end of the second electric push rod is fixedly connected with a splicing plate, the splicing plate is located below the discharge pipe, the upper end of the splicing plate is fixedly connected with a connecting column near the second electric push rod, one end of the plurality of knocking columns is linearly arrayed and attached to the outer wall of the cyclone separator body from top to bottom, the lengths of the plurality of knocking columns gradually increase from top to bottom, an elastic element is arranged between each of the plurality of knocking columns and the cyclone separator body, two symmetrically connected frames are fixedly connected to the outer wall rear edge of each of the plurality of knocking columns, a triangular block is fixedly connected between the two connected frames, the connecting column passes through the two connected frames, a triangular block is fixedly connected to the outer wall upper edge of the connecting column, an electric motor is fixedly installed to the upper end of the splicing plate away from the second electric push rod, the electric motor is connected with the cleaning mechanism, through the knocking mechanism, the impurities adhered to the inner wall of the cyclone separator body are easily shaken off due to the vibration caused by the knocking of the plurality of knocking columns.

[0006] Preferably, the elastic element comprises an L-shaped plate and a connecting ring, one end of the L-shaped plate is fixedly connected to the outer wall of the cyclone separator body, the knocking column movably penetrates the vertical portion of the L-shaped plate, the connecting ring is fixedly sleeved on the outer wall of the knocking column near the front edge, a second spring is fixedly connected between the rear end of the connecting ring and the vertical portion of the L-shaped plate, the second spring is slidably sleeved on the outer wall of the knocking column, through the elastic element, the sliding of the knocking column can be supported, and the knocking column has a reset function.

[0007] Preferably, the cleaning mechanism comprises a connecting column, the connecting column is located in the inner center of the cyclone separator body, the connecting column passes through the discharge pipe, the bottom end of the connecting column is fixedly connected with the output shaft end of the electric motor, a square shell is fixedly connected to the top end of the connecting column, a square rod is slidably inserted into the inside of the square shell, a third spring is fixedly connected between one end of the square rod and the vertical surface inside the square shell, a scraper is rotatably connected to the other end of the square rod, the front end of the scraper is attached to the inner wall of the cyclone separator body, a sliding groove is formed in the lower end of the square rod, a sliding block is slidably attached to the inside of the sliding groove, a guide column is fixedly connected to one end of the sliding block, a columnar groove is formed in the inner wall of the sliding groove, the guide column and the columnar groove are in sliding fit, a first spring is slidably sleeved on the outer wall of the guide column, the first spring is fixedly connected between the rear end of the sliding block and the inner wall of the sliding groove, the other end of the sliding block is rotatably connected with a connecting rod, the end of the connecting rod away from the sliding block is rotatably connected with the rear end of the scraper, through the cleaning mechanism, the inner wall of the conical cyclone separator body can be uniformly scraped from top to bottom, and the high-adhesion impurities adhered to the inner wall of the cyclone separator body can be scraped off.

[0008] Preferably, the collecting mechanism comprises a barrel and a fixed plate, the barrel is communicated at the lower end of the downpipe, the fixed plate is fixedly connected to the outer wall of the cyclone separator body near the lower edge, the lower end of the fixed plate is fixedly installed with a first electric push rod, the telescopic shaft end of the first electric push rod is fixedly connected with a connecting plate, one end of the connecting plate is fixedly connected with a round shell, the inner bottom end of the round shell is attached to the lower end of the barrel, the connecting column is movably penetrated into the inner bottom end of the round shell, by arranging the collecting mechanism, the impurities discharged along the downpipe can be collected, and the impurities are convenient to take out.

[0009] Preferably, the dispersing mechanism comprises a clamping groove, a square box and a conical block, the conical block is slidably sleeved on the outer wall of the connecting column near the lower edge, the clamping block is fixedly connected to the inner wall of the conical block, the bottom end of the conical block is attached to the inner bottom end of the round shell, the clamping groove is arranged on the rear part of the outer wall of the connecting column, the clamping block and the clamping groove are in sliding fit, the upper surface of the conical block is fixedly connected with the square box, the top end of the square box is located in the inner part of the downpipe, by arranging the dispersing mechanism, the downpipe is prevented from being blocked.

[0010] Preferably, the multi-stage purification mechanism comprises a first pipeline, the first pipeline is communicated at the air outlet end of the cyclone separator body, one end of the first pipeline away from the cyclone separator body is communicated with a cylinder, the bottom of the outer wall of the first pipeline is communicated with a drain pipe, the valve is installed on the drain pipe, the inner part of the cylinder is fixedly installed with a demister body, the upper end of the cylinder is communicated with a second pipeline, one end of the second pipeline away from the demister body is communicated with a vacuum buffer tank body, the outer wall of the vacuum buffer tank body near the lower edge is communicated with a gas suction pipe, one end of the gas suction pipe away from the vacuum buffer tank body is communicated at the air inlet end of the claw type vacuum pump, the air outlet end of the claw type vacuum pump is communicated with an air outlet pipe, the outer wall of the claw type vacuum pump is provided with a cleaning piece, by arranging the multi-stage purification mechanism, the tail gas can be separated in multiple stages, and the separation effect is good.

[0011] Preferably, the cleaning piece comprises a water tank, the water tank is located at the side of the claw type vacuum pump, a water pump is arranged between the water tank and the claw type vacuum pump, the water inlet end and the water outlet end of the water pump are respectively communicated with a water inlet pipe and a water outlet pipe, one end of the water inlet pipe away from the water pump is communicated with the side wall of the water tank near the lower edge, one end of the water outlet pipe away from the water pump is communicated with the shell wall of the claw type vacuum pump, the upper end of the water tank is communicated with a water injection pipe, by arranging the cleaning piece, the claw type impeller inside the claw type vacuum pump can be cleaned.

[0012] Preferably, the inner wall of the cyclone separator body is fixedly connected with a flow resistance fin, the shape of the flow resistance fin is spiral, by arranging the flow resistance fin, the flow rate of the airflow inside the cyclone separator body can be reduced, so that the separation effect of the cyclone separator body on the tail gas is better.

[0013] Compared with the prior art, the present application has the beneficial effects that: by setting the cyclone separator body and the multi-stage purification mechanism, the polymerizer tail gas first passes through the cyclone separator body, most of the dust and liquid in the tail gas can be separated, then the tail gas passes through the demister body, the saturated process medium in the tail gas can be condensed into small water droplets, then enters the vacuum buffer tank body before the claw vacuum pump, to stabilize the overall negative pressure of the negative pressure system, finally the tail gas is extracted into the tail gas treatment system in the device by the claw vacuum pump, the claw vacuum pump has a cleaning function, and can be operated for a long time, the vacuum suction system is suitable for negative pressure suction of tail gas systems containing dust, liquid phase and the like, the overall equipment structure is simple, the system composition is reasonable, operation is efficient, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0015] Figure 2 It is a sectional view of the present application;

[0016] Figure 3 It is a display diagram of the cleaning mechanism of the present application;

[0017] Figure 4 It is a schematic diagram of the structure at A in Figure 3

[0018] Figure 5 It is a display diagram of the knocking mechanism of the present application;

[0019] Figure 6 It is a display diagram of the connecting column, the clamping groove and the square box of the present application;

[0020] Figure 7 It is a schematic diagram of the structure at C in Figure 6

[0021] ​​The components represented by each number in the attached diagram are listed below: 1. Cyclone separator body; 2. First pipe; 3. Cylinder; 4. Vacuum buffer tank body; 5. Second pipe; 6. Claw vacuum pump; 7. Outlet pipe; 8. Extraction pipe; 9. Water tank; 10. Water injection pipe; 11. Water pump; 12. Inlet pipe; 13. Outlet pipe; 14. Drain pipe; 15. Valve; 16. Fixing plate; 17. First electric actuator; 18. Connecting plate; 19. Splicing plate; 20. Circular shell; 21. Cylinder body; 22. Connecting column; 23. Second electric actuator; 24. Fixing frame; 25. Support rod; 26. Feed pipe; 27. Demister body; 28. Connecting column; 29. ​​Baffle fins; 30. Square shell; 31. Square rod; 32. Scraper; 33. Third spring; 34. Slider; 35. Guide column; 36. First spring; 37. Columnar groove; 38. Slide groove; 39. Triangular block; 40. Connecting frame; 41. Triangular block; 42. L-shaped plate; 43. Striking column; 44. Connecting ring; 45. Second spring; 46. Slot; 47. Square frame; 48. Locking block; 49. Conical block; 50. Motor; 51. Connecting rod. Implementation

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

[0023] This invention provides a technical solution: such as Figures 1-7 The vacuum negative pressure suction device for a medium containing dust includes a cyclone separator body 1. The bottom end of the cyclone separator body 1 is connected to a feed pipe 26. A cleaning mechanism is provided inside the cyclone separator body 1 to scrape off stubborn impurities adhering to the inner wall of the cyclone separator body 1 after operation. A knocking mechanism is provided on the outer wall of the cyclone separator body 1 to shake off the impurities adhering to the inner wall of the cyclone separator body 1 in conjunction with the cleaning mechanism. A dispersing mechanism is provided inside the feed pipe 26 to prevent blockage inside the feed pipe 26 in conjunction with the cleaning mechanism and the knocking mechanism. A multi-stage purification mechanism is connected to the air outlet end of the cyclone separator body 1, and a material collection mechanism is provided at the bottom end of the feed pipe 26.

[0024] The knocking mechanism comprises a fixing frame 24 and a plurality of knocking columns 43, the fixing frame 24 is fixedly connected to the outer wall of the cyclone separator body 1, the lower end of the fixing frame 24 is fixedly connected with a supporting rod 25, the lower end of the supporting rod 25 is fixedly installed with a second electric push rod 23, the telescopic shaft end of the second electric push rod 23 is fixedly connected with a splicing plate 19, the splicing plate 19 is located below the discharging pipe 26, and the upper end of the splicing plate 19 is fixedly connected with a connecting column 22 near the second electric push rod 23, one end of the plurality of knocking columns 43 is linearly arrayed and attached to the outer wall of the cyclone separator body 1 from top to bottom, the lengths of the plurality of knocking columns 43 gradually increase from top to bottom, and an elastic element is arranged between each of the plurality of knocking columns 43 and the cyclone separator body 1, the elastic element comprises an L-shaped plate 42 and a connecting ring 44, one end of the L-shaped plate 42 is fixedly connected to the outer wall of the cyclone separator body 1, the knocking column 43 is movably penetrated through the vertical part of the L-shaped plate 42, the connecting ring 44 is fixedly sleeved on the outer wall of the knocking column 43 near the front edge, a second spring 45 is fixedly connected between the rear end of the connecting ring 44 and the vertical part of the L-shaped plate 42, the second spring 45 is slidably sleeved on the outer wall of the knocking column 43, two symmetrical connecting frames 40 are fixedly connected to the rear edge of the outer wall of each of the plurality of knocking columns 43, a triangular block 39 is fixedly connected between the two connecting frames 40, the connecting column 22 penetrates through the two connecting frames 40, a triangular block 41 is fixedly connected to the upper edge of the outer wall of the connecting column 22, a motor 50 is fixedly installed at the upper end of the splicing plate 19 away from the second electric push rod 23, and the motor 50 is connected with the cleaning mechanism.

[0025] The cleaning mechanism comprises a connecting column 28, the connecting column 28 is located in the inner center of the cyclone separator body 1, penetrates through the discharging pipe 26, and the bottom end of the connecting column 28 is fixedly connected with the output shaft end of the motor 50, the top end of the connecting column 28 is fixedly connected with a square shell 30, a square rod 31 is slidably inserted into the square shell 30, a third spring 33 is fixedly connected between one end of the square rod 31 and the vertical surface in the square shell 30, the other end of the square rod 31 is rotatably connected with a scraper 32, the front end of the scraper 32 is attached to the inner wall of the cyclone separator body 1, the lower end of the square rod 31 is provided with a sliding groove 38, a sliding block 34 is slidably attached to the inside of the sliding groove 38, one end of the sliding block 34 is fixedly connected with a guide column 35, a columnar groove 37 is formed in the inner wall of the sliding groove 38, the guide column 35 and the columnar groove 37 are in sliding fit, a first spring 36 is slidably sleeved on the outer wall of the guide column 35, the first spring 36 is fixedly connected between the rear end of the sliding block 34 and the inner wall of the sliding groove 38, the other end of the sliding block 34 is rotatably connected with a connecting rod 51, one end of the connecting rod 51 away from the sliding block 34 is rotatably connected with the rear end of the scraper 32

[0026] In this embodiment, the second electric push rod 23 is connected with an external power source, so that the second electric push rod 23 can drive the splicing plate 19 to move downward, the splicing plate 19 can drive the connecting column 22 to move downward, the triangular blocks 41 on the outer wall of the connecting column 22 can be sequentially fitted from top to bottom through the plurality of triangular blocks 39, the plurality of triangular blocks 39 can be sequentially pushed to slide outward by the triangular blocks 41, the triangular blocks 39 can drive the knocking columns 43 to move outward in the inner wall of the L-shaped plate 42, and the knocking columns 43 can drive the connecting ring 44 to press the second spring 45 between the vertical part of the L-shaped plate 42, when the triangular blocks 41 on the outer wall of the connecting column 22 slide away from the triangular blocks 39, under the action of the second spring 45, the knocking columns 43 can be reset, and then a plurality of knocking columns 43 can sequentially knock the outer wall of the cyclone separator body 1, so that the impurities adhered to the inner wall of the cyclone separator body 1 can be easily shaken off by the vibration caused by the knocking of the plurality of knocking columns 43;

[0027] When the splicing plate 19 moves downward, the motor 50 can also move downward, the motor 50 is connected with an external power source, so that the motor 50 can drive the connecting column 28 to rotate, the connecting column 28 can drive the square shell 30, the square rod 31 and the scraper 32 to rotate together, the scraper 32 can scrape the inner wall of the cyclone separator body 1, so that some stubborn impurities adhered to the inner wall of the cyclone separator body 1 can be swept off, with the downward movement of the motor 50, the connecting column 28 can slide downward at the inner bottom end of the circular shell 20, the scraper 32 can perform spiral downward overall scraping on the inner wall of the cyclone separator body 1, because the cyclone separator body 1 is conical, with the downward rotation of the scraper 32, the square rod 31 can press the spring between the inner wall of the square shell 30, and the scraper 32 can rotate to be fitted with the conical inner wall of the cyclone separator body 1, the connecting rod 51 can drive the sliding block 34 to slide in the sliding groove 38, and the sliding block 34 can press the first spring 36 connected between the inner wall of the sliding groove 38, and the guide column 35 can slide into the cylindrical groove 37. Embodiment

[0028] The dispersion mechanism includes a clamping groove 46, a square frame 47 and a conical block 49, the conical block 49 is slidably arranged on the outer wall of the connecting column 28 near the lower edge, the inner wall of the conical block 49 is fixedly connected with a clamping block 48, the bottom end of the conical block 49 is fitted in the inner bottom end of the circular shell 20, the clamping groove 46 is formed in the rear part of the outer wall of the connecting column 28, the clamping block 48 and the clamping groove 46 are in sliding fit, the upper surface of the conical block 49 is fixedly connected with the square frame 47, and the top end of the square frame 47 is located in the inner part of the discharging pipe 26.

[0029] The aggregate mechanism comprises a barrel 21 and a fixed plate 16, the barrel 21 is communicated at the lower end of the discharging pipe 26, the fixed plate 16 is fixedly connected at the outer wall of the cyclone separator main body 1 near the lower edge, and the lower end of the fixed plate 16 is fixedly installed with a first electric push rod 17, the telescopic shaft end of the first electric push rod 17 is fixedly connected with a connecting plate 18, one end of the connecting plate 18 is fixedly connected with a circular shell 20, the inner bottom end of the circular shell 20 is attached to the lower end of the barrel 21, and the connecting column 28 is movably penetrated into the inner bottom end of the circular shell 20.

[0030] In the embodiment, when the connecting column 28 rotates and moves downward, the tapered block 49 and the square frame 47 can be driven to rotate through the clamping groove 46 and the clamping block 48, and the square frame 47 can be stirred in the inside of the discharging pipe 26, so that the material is prevented from being stuck in the inside of the discharging pipe 26 to cause the discharging pipe 26 to be blocked, and in the process that the connecting column 28 rotates and moves downward, the clamping block 48 can slide in the clamping groove 46, and the bottom end of the tapered block 49 is always attached to the inner bottom end of the circular shell 20.

[0031] By arranging the barrel 21 and the circular shell 20, the impurities discharged along the discharging pipe 26 can be collected, the first electric push rod 17 is connected with an external power supply, so that the first electric push rod 17 can drive the connecting plate 18 to move downward, the connecting plate 18 can drive the circular shell 20 to move downward, and then the collected impurities can be conveniently taken out. Embodiment

[0032] The multi-stage purification mechanism comprises a first pipeline 2, the first pipeline 2 is communicated at the air outlet end of the cyclone separator main body 1, one end of the first pipeline 2 away from the cyclone separator main body 1 is communicated with a cylinder 3, the bottom of the outer wall of the first pipeline 2 is communicated with a drain pipe 14, the drain pipe 14 is installed with a valve 15, the inside of the cylinder 3 is fixedly installed with a demister main body 27, the upper end of the cylinder 3 is communicated with a second pipeline 5, one end of the second pipeline 5 away from the demister main body 27 is communicated with a vacuum buffer tank main body 4, the outer wall of the vacuum buffer tank main body 4 near the lower edge is communicated with a gas suction pipe 8, one end of the gas suction pipe 8 away from the vacuum buffer tank main body 4 is communicated at the air inlet end of a claw type vacuum pump 6, the air outlet end of the claw type vacuum pump 6 is communicated with an air outlet pipe 7, and the outer wall of the claw type vacuum pump 6 is provided with a cleaning piece, the cleaning piece comprises a water tank 9, the water tank 9 is located at the side of the claw type vacuum pump 6, and a water pump 11 is arranged between the water tank 9 and the claw type vacuum pump 6, the water inlet end and the water outlet end of the water pump 11 are respectively communicated with a water inlet pipe 12 and a water outlet pipe 13, one end of the water inlet pipe 12 away from the water pump 11 is communicated with the side wall of the water tank 9 near the lower edge, one end of the water outlet pipe 13 away from the water pump 11 is communicated with the shell wall of the claw type vacuum pump 6, and the upper end of the water tank 9 is communicated with a water injection pipe 10.

[0033] The inner wall of the cyclone separator main body 1 is fixedly connected with a flow resistance fin 29, and the flow resistance fin 29 is in a spiral shape.

[0034] In this embodiment, the tail gas separated by the cyclone separator body 1 can enter the cylinder 3 along the first pipeline 2, and the demister body 27 is arranged in the cylinder 3, which can condense the saturated medium in the tail gas, further separate the process medium in the tail gas, increase the inert gas content in the tail gas, and separate the condensed liquid droplets in the demister body 27 to ensure that the gas entering the vacuum buffer tank body 4 is dry. Opening the valve 15 can discharge the water droplets along the drain pipe 14, and connecting the claw vacuum pump 6 with the external power supply so that the claw vacuum pump 6 can pump the gas in the vacuum buffer tank body 4 out, thereby performing multi-stage separation treatment on the tail gas. Connecting the water pump 11 with the external power supply so that the water pump 11 can transport the water in the water tank 9 to the claw impeller inside the claw vacuum pump 6, facilitating cleaning of the claw impeller and ensuring long-term operation of the claw vacuum pump 6.

[0035] By arranging the spiral flow resistance fins 29, the flow rate of the tail gas in the cyclone separator body 1 can be reduced after the tail gas contacts the spiral flow resistance fins 29, thereby improving the separation effect of the cyclone separator body 1.

[0036] Working principle: By arranging the cyclone separator body 1 and the multi-stage purification mechanism, the tail gas of the polymerization kettle first passes through the cyclone separator body 1, which can separate most of the dust and liquid in the tail gas. Then the tail gas passes through the demister body 27, which can condense the saturated process medium in the tail gas into small water droplets, and then enters the vacuum buffer tank body 4 before the claw vacuum pump 6 to stabilize the overall negative pressure of the negative pressure system. Finally, the tail gas is pumped into the tail gas treatment system of the device by the claw vacuum pump 6, which has a self-cleaning function and can operate for a long time. This vacuum pumping system is suitable for negative pressure pumping of tail gas systems containing dust, liquid and other substances. The overall equipment structure is simple, the system composition is reasonable, the operation is efficient, the service life is long, and the cleaning effect of the cyclone separator body 1 is good. By arranging the cleaning mechanism, the stubborn impurities adhering to the inner wall of the cyclone separator body 1 can be scraped off. By arranging the knocking mechanism, the outer wall of the cyclone separator body 1 can be knocked in an orderly manner, which can make the cyclone separator body 1 vibrate and make the impurities adhering to the inner wall of the cyclone separator body 1 fall off. By arranging the dispersing mechanism and the collecting mechanism, the impurities in the feeding pipe 26 can be stirred, and the impurities discharged along the feeding pipe 26 can be collected, which can avoid blockage caused by impurities stuck in the feeding pipe 26.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it should be taken in its broadest possible sense. For example, the terms "a", "an", and "the" include both singular and plural referents unless the context clearly dictates otherwise. The terms "comprises", "comprising", "includes", "including" and the like can be used in conjunction with the term "consisting of to include the elements or steps listed after such conjunctive language, but not to the exclusion of other elements or steps. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

[0038] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes and substitutions are intended to fall within the scope of the present application, which is limited only by the scope of the claims hereinafter appended.

Claims

1. A medium dust-containing vacuum negative pressure suction device, comprising: A cyclone separator body (1), the bottom end of the cyclone separator body (1) is communicated with a discharge pipe (26); Characterized in that it further comprises: The inside of the cyclone separator body (1) is provided with a cleaning mechanism for cooperating with the cyclone separator body (1) to scrape off stubborn impurities adhering to the inner wall of the cyclone separator body (1) after work; A knocking mechanism is arranged on the outer wall of the cyclone separator body (1) for cooperating with the cleaning mechanism to shake off the impurities adhering to the inner wall of the cyclone separator body (1); A dispersing mechanism is arranged in the discharge pipe (26) for cooperating with the cleaning mechanism and the knocking mechanism to prevent blockage of the inside of the discharge pipe (26); A multi-stage purification mechanism is connected to the air outlet end of the cyclone separator body (1), and a material collecting mechanism is arranged at the bottom end of the discharge pipe (26); The knocking mechanism comprises a fixed frame (24) and a plurality of knocking columns (43), the fixed frame (24) is fixedly connected to the outer wall of the cyclone separator body (1), the lower end of the fixed frame (24) is fixedly connected with a support rod (25), the lower end of the support rod (25) is fixedly installed with a second electric push rod (23), the telescopic shaft end of the second electric push rod (23) is fixedly connected with a splicing plate (19), the splicing plate (19) is located below the discharge pipe (26), the upper end of the splicing plate (19) is fixedly connected with a connecting column (22) near the second electric push rod (23), one end of the plurality of knocking columns (43) is linearly arrayed from top to bottom and attached to the outer wall of the cyclone separator body (1), the lengths of the plurality of knocking columns (43) gradually increase from top to bottom, elastic members are arranged between the plurality of knocking columns (43) and the cyclone separator body (1), two symmetrically connected frames (40) are fixedly connected to the outer wall rear edge of the plurality of knocking columns (43), a triangular block (39) is fixedly connected between the two connected frames (40), the connecting column (22) penetrates through the two connected frames (40), a triangular block (41) is fixedly connected to the outer wall upper edge of the connecting column (22), an electric motor (50) is fixedly installed at the upper end of the splicing plate (19) away from the second electric push rod (23), and the electric motor (50) is connected with the cleaning mechanism; The elastic member comprises an L-shaped plate (42) and a connecting ring (44), one end of the L-shaped plate (42) is fixedly connected to the outer wall of the cyclone separator body (1), the knocking column (43) movably penetrates the vertical part of the L-shaped plate (42), the connecting ring (44) is fixedly sleeved on the outer wall of the knocking column (43) near the front edge, a second spring (45) is fixedly connected between the rear end of the connecting ring (44) and the vertical part of the L-shaped plate (42), and the second spring (45) is slidably sleeved on the outer wall of the knocking column (43). The cleaning mechanism comprises a connecting column (28) located in the inside center of the cyclone separator body (1), the connecting column (28) penetrates through the discharge pipe (26), the bottom end of the connecting column (28) is fixedly connected with the output shaft end of the motor (50), the top end of the connecting column (28) is fixedly connected with a square shell (30), the square shell (30) is slidably inserted into the square rod (31), one end of the square rod (31) and the vertical surface of the square shell (30) are fixedly connected with the third spring (33), the other end of the square rod (31) is rotatably connected with the scraper (32), the front end of the scraper (32) is attached to the inner wall of the cyclone separator body (1), the lower end of the square rod (31) is provided with a sliding groove (38), the sliding groove (38) is slidably attached with a sliding block (34), one end of the sliding block (34) is fixedly connected with a guide column (35), the inner wall of the sliding groove (38) is provided with a columnar groove (37), the guide column (35) and the columnar groove (37) are in sliding fit, the outer wall of the guide column (35) is slidably sleeved with the first spring (36), the first spring (36) is fixedly connected between the rear end of the sliding block (34) and the inner wall of the sliding groove (38), the other end of the sliding block (34) is rotatably connected with the connecting rod (51), one end of the connecting rod (51) away from the sliding block (34) is rotatably connected with the rear end of the scraper (32).

2. A medium dust laden vacuum negative pressure suction device according to claim 1, characterized in that: The collecting mechanism comprises a cylinder (21) and a fixed plate (16), the cylinder (21) is communicated at the lower end of the discharge pipe (26), the fixed plate (16) is fixedly connected to the outer wall of the cyclone separator body (1) near the lower edge, the first electric push rod (17) is fixedly installed at the lower end of the fixed plate (16), the connecting plate (18) is fixedly connected with the first electric push rod (17), the one end of the connecting plate (18) is fixedly connected with a circular shell (20), the inner bottom end of the circular shell (20) is attached to the lower end of the cylinder (21), and the connecting column (28) is movably penetrated into the inner bottom end of the circular shell (20).

3. A medium dust laden vacuum negative pressure suction device according to claim 2, characterized in that: The dispersing mechanism comprises a clamping groove (46), a square frame (47) and a conical block (49), the conical block (49) is slidably sleeved on the outer wall of the connecting column (28) near the lower edge, the clamping block (48) is fixedly connected to the inner wall of the conical block (49), the bottom end of the conical block (49) is attached to the inner bottom end of the circular shell (20), the clamping groove (46) is formed in the rear part of the outer wall of the connecting column (28), the clamping block (48) and the clamping groove (46) are in sliding fit, the square frame (47) is fixedly connected to the upper surface of the conical block (49), and the top end of the square frame (47) is located in the inside of the discharge pipe (26).

4. The medium dusted vacuum negative pressure suction device according to claim 1, characterized in that: The multistage purification mechanism comprises a first pipeline (2) which is communicated at the air outlet end of a cyclone separator body (1), one end of the first pipeline (2) away from the cyclone separator body (1) is communicated with a cylinder (3), the outer wall bottom of the first pipeline (2) is communicated with a drain pipe (14), the drain pipe (14) is provided with a valve (15), the inside of the cylinder (3) is fixedly provided with a demister body (27), the upper end of the cylinder (3) is communicated with a second pipeline (5), one end of the second pipeline (5) away from the demister body (27) is communicated with a vacuum buffer tank body (4), the outer wall of the vacuum buffer tank body (4) is communicated with a suction pipe (8) near the lower edge, one end of the suction pipe (8) away from the vacuum buffer tank body (4) is communicated at the air inlet end of a claw vacuum pump (6), the air outlet end of the claw vacuum pump (6) is communicated with an air outlet pipe (7), the outer wall of the claw vacuum pump (6) is provided with a cleaning part.

5. A medium dust laden vacuum negative pressure suction apparatus according to claim 4, characterized in that: The cleaning part comprises a water tank (9) which is located at the side of the claw vacuum pump (6), a water pump (11) is arranged between the water tank (9) and the claw vacuum pump (6), the water inlet end and the water outlet end of the water pump (11) are respectively communicated with a water inlet pipe (12) and a water outlet pipe (13), one end of the water inlet pipe (12) away from the water pump (11) is communicated with the side wall of the water tank (9) near the lower edge, one end of the water outlet pipe (13) away from the water pump (11) is communicated with the shell wall of the claw vacuum pump (6), the upper end of the water tank (9) is communicated with a water injection pipe (10).

6. A medium dust laden vacuum negative pressure suction apparatus according to claim 1, characterized in that: The inner wall upper portion of the cyclone separator body (1) is fixedly connected with a flow resistance fin (29), the shape of the flow resistance fin (29) is spiral.

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