Mixing device for sludge conveying system

Abstract

The present invention discloses a stirring device for a sludge conveying system, comprising a tank body, a partition, a main air path and an air vent, a tank cover is fitted and fixed on the top of the tank body, and a hydraulic drive device is fixedly installed on the outside of the tank body, the top of the hydraulic drive device is fixedly connected to the bottom of the tank cover, a bracket is fixedly installed on the top of the tank cover, and a drive motor is fixedly installed on the top of the left side of the bracket, and an air path slip ring is fixed on the top of the right side of the bracket. The stirring device for the sludge conveying system is provided with a first scraper, a second scraper and a third scraper, when the rotating shaft drives the spiral blade to rotate and stir the sludge, the connecting frame rotates accordingly, and at the same time, the connecting frame drives the first scraper, the second scraper and the third scraper to rotate, so that the first scraper cleans the inner wall of the tank body when rotating, the second scraper cleans the outer wall of the partition when rotating, and the third scraper cleans the inner wall of the partition when rotating, so that the solid materials adhered to the inside of the stirring device are automatically cleaned, the obstruction during stirring is reduced, and it is more practical.

Description

Technical Field

[0001] The invention relates to the technical field of stirring devices, in particular to a stirring device for a sludge conveying system. Background Art

[0002] In the sludge conveying system, there is usually a storage tank for transferring and temporarily storing sludge. In order to prevent the solid materials in the sludge from settling and causing blockage in the conveying pipeline, a stirring device is required.

[0003] The existing stirring device is usually not provided with an inner wall cleaning device. After the tank body is used for a long time, some solid materials adhere to the inner wall of the tank body, which leads to increased stirring resistance. The existing stirring device has a single stirring method, and usually only relies on the mechanical movement of the stirring blade to stir the sludge. However, this stirring method consumes a lot of energy and has low efficiency. It is not practical to use. In addition, the installation and disassembly process of the existing stirring device is complicated, and it is difficult to quickly detach from the tank body, which increases the difficulty of maintenance and cleaning. In view of the above problems, it is necessary to improve the existing equipment. Summary of the invention

[0004] The object of the present invention is to provide a stirring device for a sludge conveying system to solve the problem that the existing stirring devices mentioned in the above background technology are usually not provided with an inner wall cleaning device. After the tank body is used for a long time, some solid materials adhere to the inner wall of the tank body, which then leads to increased stirring resistance. The existing stirring device has a single stirring method, usually only relying on the mechanical movement of the stirring blade to stir the sludge, but this stirring method consumes a lot of energy, has low efficiency, is not practical to use, and the installation and disassembly process of the existing stirring device is complicated, and it is difficult to quickly detach from the tank body, which increases the difficulty of maintenance and cleaning.

[0005] To achieve the above object, the present invention provides the following technical solution: a stirring device for a sludge conveying system, comprising a tank body, a partition, a main gas path and a vent hole,

[0006] A tank body, a tank cover is fitted and fixed on the top of the tank body, and a hydraulic drive device is fixedly installed on the outside of the tank body, the top of the hydraulic drive device is fixedly connected to the bottom of the tank cover, a bracket is fixedly installed on the top of the tank cover, and a drive motor is fixedly installed on the top of the left side of the bracket, an air path slip ring is fixed on the top of the right side of the bracket, and the bottom of the air path slip ring is rotatably connected to the rotating shaft, the upper side of the rotating shaft is connected to the drive motor through a gear set, and the gear set is arranged on the inner side of the bracket, and the rotating shaft passes through the tank cover and is rotatably connected thereto;

[0007] Partition plate, the partition plate is fixed at the bottom of the tank cover and suspended inside the tank body, and an opening is provided on the upper side of the partition plate. The inside of the tank body is divided into an inner cavity and an outer cavity by the partition plate, and the inner cavity is located inside the outer cavity. A spiral blade is fixed to the lower side of the rotating shaft, and a connecting frame is fixed to the lower end of the rotating shaft. The first fixing rod and the second fixing rod are alternately fixed to the top of the outside of the connecting frame, and a first scraping plate is installed on one side of the first fixing rod, and a second scraping plate is installed on one side of the second fixing rod. A third scraping plate is installed at the bottom of the connecting frame. A tapered spline shaft is fixed to the bottom of the rotating shaft, and the tapered spline shaft is embedded inside the tapered spline groove. The tapered spline groove is opened at the top of the rotating table, and the rotating table is rotatably connected to the center of the bottom of the tank body;

[0008] Main air passage, the main air passage is opened in the center of the rotating shaft. A branch air passage is opened inside the connecting frame, and the branch air passage is communicated with the main air passage. An air compressor is arranged on the right side of the tank body, and the air compressor is communicated with the air path slip ring through an air delivery hose. An exhaust port is opened on the right side of the tank cover;

[0009] Vent holes, the vent holes are opened at the top of the connecting frame, and the vent holes are communicated with the branch air passage. One-way valves are installed inside the vent holes. A liquid inlet pipe is fixedly communicated with the upper side of the left rear end of the tank body, and the liquid inlet pipe is communicated with the upper side of the left rear end of the outer cavity. A liquid discharge pipe is fixedly communicated with the lower side of the right front end of the tank body, and the liquid discharge pipe is communicated with the lower side of the right front end of the outer cavity.

[0010] Preferably, the rotation axis of the rotating shaft coincides with the rotation axis of the rotating table, and the tapered spline shaft at the bottom of the rotating shaft and the tapered spline groove are in spline connection.

[0011] Preferably, the center line of the rotating shaft, the center line of the tank body and the center line of the partition plate coincide.

[0012] Preferably, there are four openings, and the four openings are arranged in a circular array centered on the center line of the rotating shaft.

[0013] Preferably, the outer end of the spiral blade is attached to the inner wall of the partition plate, and the uppermost end of the spiral blade is above the lowermost end of the opening.

[0014] Preferably, there are three first scraping plates, and the three first scraping plates are arranged in a "pin" shape centered on the center line of the rotating shaft. At the same time, one end of the first scraping plate is attached to the inner wall of the tank body.

[0015] Preferably, there are three second scraping plates, and the three second scraping plates are arranged in a "pin" shape centered on the center line of the rotating shaft. At the same time, one end of the second scraping plate is attached to the outer end of the partition plate.

[0016] Preferably, there are three third scraping plates, and the three third scraping plates are arranged in a "pin" shape centered on the center line of the rotating shaft. At the same time, the lower end of the third scraping plate is attached to the inner wall of the bottom of the tank body.

[0017] Preferably, a plurality of the air holes are provided, and the plurality of air holes are evenly opened on the top of the connecting frame.

[0018] Compared with the prior art, the invention has the following beneficial effects: the sludge conveying system uses a stirring device,

[0019] (1) A hydraulic drive device, a rotating table and a tapered spline shaft are provided. The hydraulic drive device pushes the tank cover to rise, and the tank cover pulls the tapered spline shaft to rise and disengage the spline connection with the tapered spline groove through the rotating shaft. The partition, rotating shaft, spiral blade, connecting frame and other components can be pulled out of the tank body through the tank cover. Similarly, when the hydraulic drive device is retracted, the tapered spline shaft is embedded in the tapered spline groove and connected with its spline, so that the rotating table plays the role of supporting the rotating shaft, so that the installation and disassembly process of the stirring device is reduced, the difficulty of maintenance and cleaning is greatly reduced, and it is more convenient to use;

[0020] (2) A first scraper, a second scraper and a third scraper are provided. When the rotating shaft drives the spiral blade to rotate and stir the sludge, the connecting frame rotates accordingly, and at the same time, the connecting frame drives the first scraper, the second scraper and the third scraper to rotate, so that the first scraper cleans the inner wall of the tank body when it rotates, the second scraper cleans the outer wall of the partition when it rotates, and the third scraper cleans the inner wall of the partition when it rotates, so as to automatically clean the solid materials adhered to the inside of the stirring device and reduce the obstruction during stirring;

[0021] (3) Air holes and spiral blades are provided, and the rotating shaft drives the spiral blades to rotate, so that the spiral blades stir the sludge. At the same time, the air compressor delivers high-pressure gas to the main gas path through the air hose, so that the high-pressure gas enters the inner cavity through the evenly arranged air holes. When the continuous bubbles float up, they stir the sludge and play the role of aeration, thereby improving the stirring effect and providing pretreatment for subsequent sludge treatment;

[0022] (4) A partition, an inner cavity and an outer cavity are provided. The rotating shaft drives the spiral blade to rotate. The spiral blade pushes the sludge in the inner cavity to rise and enter the outer cavity through the opening, so that the sludge in the outer cavity flows downward and flows into the bottom of the inner cavity, so that the sludge circulates inside the inner cavity and the outer cavity. The circulating sludge prevents the sludge from being deposited inside the tank body. Compared with the traditional stirring method relying on the high-speed rotation of the stirring blade, it has lower energy consumption and better anti-deposition effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the bracket of the present invention from top view;

[0025] Figure 3 It is a schematic diagram of the top cross-sectional structure of the tank body of the present invention;

[0026] Figure 4 This is a schematic diagram of the top view of the connecting frame of the present invention;

[0027] Figure 5 It is a schematic diagram of a top-view cross-sectional structure of a connecting frame of the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the tank body of the present invention when viewed from above;

[0029] Figure 7 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1. tank body, 2. tank cover, 3. hydraulic drive device, 4. bracket, 5. drive motor, 6. gas path slip ring, 7. rotating shaft, 8. gear set, 9. partition, 10. opening, 11. inner cavity, 12. outer cavity, 13. spiral blade, 14. connecting frame, 15. first fixed rod, 16. second fixed rod, 17. first scraper, 18. second scraper, 19. third scraper, 20. tapered spline shaft, 21. tapered spline groove, 22. rotating table, 23. main gas path, 24. branch gas path, 25. air compressor, 26. gas hose, 27. exhaust port, 28. air vent, 29. one-way valve, 30. liquid inlet pipe, 31. liquid discharge pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0032] See also Figure 1-7 The present invention provides a technical solution: a stirring device for a sludge conveying system, such as Figure 1 and Figure 2As shown, a tank cover 2 is fixedly attached to the top of the tank body 1, and a hydraulic drive device 3 is fixedly installed on the outside of the tank body 1, the top of the hydraulic drive device 3 is fixedly connected to the bottom of the tank cover 2, a bracket 4 is fixedly installed on the top of the tank cover 2, and a drive motor 5 is fixedly installed on the top of the left side of the bracket 4, and an air path slip ring 6 is fixed on the top of the right side of the bracket 4, and the bottom of the air path slip ring 6 is rotatably connected to the rotating shaft 7, the rotating axis of the rotating shaft 7 coincides with the rotating axis of the rotating table 22, and the tapered spline shaft 20 at the bottom of the rotating shaft 7 is connected to the tapered spline groove 21. There is a spline connection between them, so that the rotating table 22 supports the rotating shaft 7 through the spline connection between the tapered spline shaft 20 and the tapered spline groove 21. The center line of the rotating shaft 7, the center line of the tank body 1 and the center line of the partition 9 coincide with each other, so that when the rotating shaft 7 rotates, the first scraper 17 rotates in contact with the inner wall of the tank cover 2, and the second scraper 18 rotates in contact with the outside of the partition 9. The upper side of the rotating shaft 7 is connected to the driving motor 5 through the gear set 8, and the gear set 8 is arranged on the inner side of the bracket 4, and the rotating shaft 7 passes through the tank cover 2 and is rotatably connected thereto.

[0033] like Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the partition plate 9 is fixed to the bottom of the tank cover 2 and suspended inside the tank body 1. An opening 10 is provided on the upper side of the partition plate 9. There are four openings 10, and the four openings 10 are arranged in an annular array centered on the center line of the rotating shaft 7, so that the sludge in the inner cavity 11 enters the outer cavity 12 evenly through the four openings 10. The inside of the tank body 1 is divided into an inner cavity 11 and an outer cavity 12 by the partition plate 9, and the inner cavity 11 is located inside the outer cavity 12. A spiral blade 13 is fixed to the lower side of the rotating shaft 7, and a connecting frame 14 is fixed to the lower end of the rotating shaft 7. The outer end of the spiral blade 13 is attached to the inner wall of the partition plate 9, and the uppermost end of the spiral blade 13 is located above the lowermost end of the opening 10, so that when the spiral blade 13 rotates, it pushes the sludge to rise inside the inner cavity 11 while cleaning the solid materials adhered to the inner wall of the partition plate 9. The first fixing rods 15 and the second fixing rods 16 are alternately fixed to the outer top of the connecting frame 14. A first scraping plate 17 is installed on one side of the first fixing rod 15. There are three first scraping plates 17, and the three first scraping plates 17 are arranged in a "pin" shape centered on the center line of the rotating shaft 7. At the same time, one end of the first scraping plate 17 is attached to the inner wall of the tank body 1, so that when the first scraping plate 17 rotates, it cleans the solid materials adhered to the inner wall of the tank body 1. A second scraping plate 18 is installed on one side of the second fixing rod 16. There are three second scraping plates 18, and the three second scraping plates 18 are arranged in a "pin" shape centered on the center line of the rotating shaft 7. At the same time, one end of the second scraping plate 18 is attached to the outer end of the partition plate 9, so that when the second scraping plate 18 rotates, it cleans the object materials adhered to the outer wall of the partition plate 9. A third scraping plate 19 is installed at the bottom of the connecting frame 14. There are three third scraping plates 19, and the three third scraping plates 19 are arranged in a "pin" shape centered on the center line of the rotating shaft 7. At the same time, the lower end of the third scraping plate 19 is attached to the inner wall of the bottom of the tank body 1, so that when the third scraping plate 19 rotates, it cleans the solid materials adhered to the inner wall of the bottom of the tank body 1. A tapered spline shaft 20 is fixed to the bottom of the rotating shaft 7, and the tapered spline shaft 20 is embedded inside the tapered spline groove 21. The tapered spline groove 21 is opened at the top of the rotating table 22, and the rotating table 22 is rotatably connected to the center of the bottom of the tank body 1.

[0034] As Figure 1 , Figure 4 and Figure 7As shown, the main gas path 23 is opened at the center of the rotating shaft 7, a branch gas path 24 is opened inside the connecting frame 14, and the branch gas path 24 is connected to the main gas path 23, an air compressor 25 is arranged on the right side of the tank body 1, and the air compressor 25 is connected to the gas path slip ring 6 through the gas hose 26, an exhaust port 27 is opened on the right side of the tank cover 2, an air vent 28 is opened on the top of the connecting frame 14, and the air vent 28 is connected to the branch gas path 24, a plurality of air vents 28 are provided, and a plurality of air vents 28 are evenly opened on the top of the connecting frame 14, so that the high-pressure gas in the branch gas path 24 passes through the air vents 28 and evenly enters the inner cavity 11, a one-way valve 29 is installed inside the air vent 28, a liquid inlet pipe 30 is fixedly connected to the upper side of the left rear end of the tank body 1, and the liquid inlet pipe 30 is connected to the upper side of the left rear end of the outer cavity 12, a liquid discharge pipe 31 is fixedly connected to the lower side of the right front end of the tank body 1, and the liquid discharge pipe 31 is connected to the lower side of the right front end of the outer cavity 12.

[0035] Working principle: When the stirring device for the sludge conveying system is used, the sludge is first conveyed into the tank body 1 through the liquid inlet pipe 30, the external power supply is turned on, the drive motor 5 is started, the drive motor 5 drives the shaft 7 to rotate through the gear set 8, the shaft 7 drives the spiral blade 13 to rotate, the spiral blade 13 pushes the sludge in the inner cavity 11 to rise and pass through the opening 10 into the outer cavity 12, the sludge in the outer cavity 12 descends and passes through the gap between the partition 9 and the bottom of the tank body 1 into the inner cavity 11, so that the sludge circulates in the inner cavity 11 and the outer cavity 12, which plays a role in stirring and preventing sedimentation while reducing energy consumption, and at the same time starts the air compressor 25, the air compressor 25 passes The air hose 26 delivers high-pressure gas to the main air path 23. The high-pressure gas in the main air path 23 enters the branch air path 24 and enters the bottom of the inner cavity 11 through the air holes 28 evenly opened on the top of the branch air path 24. The high-pressure gas decomposes into bubbles to play a stirring role and aeration role at the same time. The floating gas is discharged through the exhaust port 27, which provides pretreatment for the subsequent processing of the sludge and is more practical to use. The one-way valve 29 prevents the sludge from flowing back into the branch air path 24. The air path slip ring 6 is set to make the rotation of the shaft 7 smoother. The rotating table 22 supports the shaft 7 through the spline connection between the tapered spline shaft 20 and the tapered spline groove 21. The spiral blade 13 rotates to push the sludge upward, and at the same time, the spiral blade 13 cleans the solid materials adhered to the inside of the partition 9. At the same time, the connecting frame 14 rotates with the rotating shaft 7, and the connecting frame 14 drives the third scraper 19 installed at the bottom thereof to rotate, so as to clean the solid materials adhered to the bottom of the tank body 1. When the connecting frame 14 rotates, the first scraper 17 is driven to rotate through the first fixed rod 15 to clean the solid materials adhered to the inner wall of the tank body 1. At the same time, the connecting frame 14 drives the second scraper 18 to rotate through the second fixed rod 16 to clean the outer wall of the partition 9, so as to automatically clean the solid materials adhered to the inside of the stirring device. , reducing the obstruction during stirring. When cleaning and maintenance are required, start the hydraulic drive device 3, the hydraulic drive device 3 pushes the tank cover 2 to rise, the tank cover 2 drives the rotating shaft 7, the rotating shaft 7 drives the tapered spline shaft 20 to rise and make it disengage from the spline connection with the tapered spline groove 21, and at the same time, the tank cover 2 pulls the partition 9, the rotating shaft 7, the connecting frame 14 and the spiral blade 13 and other components out of the tank body 1. This connection method is simple, simplifies the installation and disassembly process, reduces the difficulty of maintenance and cleaning, and is more convenient to use. This completes all the work. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0036] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring device for a sludge conveying system, comprising a tank body (1), a partition (9), a main gas path (23) and a vent hole (28), characterized in that: A tank body (1), a tank cover (2) is fixedly fitted on the top of the tank body (1), and a hydraulic drive device (3) is fixedly installed on the outside of the tank body (1), the top of the hydraulic drive device (3) is fixedly connected to the bottom of the tank cover (2), a bracket (4) is fixedly installed on the top of the tank cover (2), and a drive motor (5) is fixedly installed on the top of the left side of the bracket (4), an air path slip ring (6) is fixed on the top of the right side of the bracket (4), and the bottom of the air path slip ring (6) is rotatably connected to a rotating shaft (7), the upper side of the rotating shaft (7) is connected to the drive motor (5) via a gear set (8), and the gear set (8) is arranged on the inner side of the bracket (4), and the rotating shaft (7) passes through the tank cover (2) and is rotatably connected thereto; A partition (9), wherein the partition (9) is fixed to the bottom of the tank cover (2) and suspended in the tank body (1), and an opening (10) is provided on the upper side of the partition (9); the interior of the tank body (1) is divided into an inner cavity (11) and an outer cavity (12) by the partition (9), and the inner cavity (11) is located inside the outer cavity (12); a spiral blade (13) is fixed to the lower side of the rotating shaft (7), and a connecting frame (14) is fixed to the lower end of the rotating shaft (7); the outer end of the spiral blade (13) is arranged to fit the inner wall of the partition (9), and the uppermost end of the spiral blade (13) is located above the lowermost end of the opening (10); a first fixing rod (15) and a second fixing rod (16) are alternately fixed to the outer top of the connecting frame (14). ), and a first scraper (17) is installed on one side of the first fixed rod (15), a second scraper (18) is installed on one side of the second fixed rod (16), and a third scraper (19) is installed at the bottom of the connecting frame (14); a conical spline shaft (20) is fixed to the bottom of the rotating shaft (7), and the conical spline shaft (20) is embedded in the conical spline groove (21); the conical spline groove (21) is opened on the top of the rotating table (22), and the rotating table (22) is rotatably connected to the bottom center of the tank body (1); the rotation axis of the rotating shaft (7) coincides with the rotation axis of the rotating table (22), and the conical spline shaft (20) at the bottom of the rotating shaft (7) and the conical spline groove (21) are spline-connected; A main gas path (23), the main gas path (23) being opened at the center of the rotating shaft (7), a branch gas path (24) being opened inside the connecting frame (14), and the branch gas path (24) being connected to the main gas path (23), an air compressor (25) being arranged on the right side of the tank body (1), and the air compressor (25) being connected to the gas path slip ring (6) via an air delivery hose (26), and an exhaust port (27) being opened on the right side of the tank cover (2); Vent holes (28) are provided, and the vent holes (28) are opened at the top of the connecting frame (14), and the vent holes (28) communicate with the branch air path (24). A one-way valve (29) is installed inside the vent holes (28). The upper side of the left rear end of the tank body (1) is fixedly communicated with a liquid inlet pipe (30), and the liquid inlet pipe (30) communicates with the upper side of the left rear end of the outer cavity (12). The lower side of the right front end of the tank body (1) is fixedly communicated with a liquid discharge pipe (31), and the liquid discharge pipe (31) communicates with the lower side of the right front end of the outer cavity (12).

2. The stirring device for the sludge conveying system according to claim 1, characterized in that: The center line of the rotating shaft (7), the center line of the tank body (1), and the center line of the partition plate (9) coincide.

3. The stirring device for the sludge conveying system according to claim 1, characterized in that: Four openings (10) are provided, and the four openings (10) are distributed in a circular array centered on the center line of the rotating shaft (7).

4. The stirring device for the sludge conveying system according to claim 1, characterized in that: Three first scraping plates (17) are provided, and the three first scraping plates (17) are arranged in a "pin" shape centered on the center line of the rotating shaft (7). At the same time, one end of the first scraping plate (17) is attached to the inner wall of the tank body (1).

5. The stirring device for the sludge conveying system according to claim 1, characterized in that: Three second scraping plates (18) are provided, and the three second scraping plates (18) are arranged in a "pin" shape centered on the center line of the rotating shaft (7). At the same time, one end of the second scraping plate (18) is attached to the outer end of the partition plate (9).

6. The stirring device for the sludge conveying system according to claim 1, characterized in that: Three third scraping plates (19) are provided, and the three third scraping plates (19) are arranged in a "pin" shape centered on the center line of the rotating shaft (7). At the same time, the lower end of the third scraping plate (19) is attached to the inner wall of the bottom of the tank body (1).

7. The stirring device for the sludge conveying system according to claim 1, characterized in that: A plurality of vent holes (28) are provided, and the plurality of vent holes (28) are evenly opened at the top of the connecting frame (14).

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