A mixing and stirring device for phosphogypsum production

Abstract

This invention discloses a mixing and stirring device for phosphogypsum production, comprising a mixing cylinder, a fixed outer cylinder, a discharge drive motor, and a docking socket. The outer surface of the middle part of the mixing cylinder is rotatably connected to the fixed outer cylinder, which is coaxially arranged outside, via bearings. The tail end of the mixing cylinder is fixedly connected to a plug connector via bolts. The plug connector has a frustum-shaped body with a larger diameter end connected to the mixing cylinder. The head end of the mixing cylinder is recessed to form an inlet and outlet. Spiral blades are welded to the inner wall of the mixing cylinder. This invention enables continuous phosphogypsum mixing production. The separable structure of the mixing cylinder and the power source allows the motor to operate without stopping. The counterweight design stores energy to ensure that the rotating docking socket has high rotational inertia, enabling rapid rotational mixing after docking with the mixing cylinder.

Description

Technical Field

[0001] This invention relates to a mixing and stirring device, specifically a mixing and stirring device for phosphogypsum production. Background Technology

[0002] Phosphogypsum has a wide range of applications as a raw material. It requires mixing during the production of various products or during modification to ensure thorough mixing with other added materials. The use of mixing equipment automates the mixing process, reducing manual labor. Current mixing equipment determines its capacity based on volume. Generally, after mixing is complete, the material is poured out and refilled for further mixing, a process that requires stopping the machine and restarting the power supply. Summary of the Invention

[0003] The purpose of this invention is to provide a mixing and stirring device for phosphogypsum production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A mixing and stirring device for phosphogypsum production includes a mixing cylinder, a fixed outer cylinder, a discharge drive motor, and a docking socket. The outer surface of the middle part of the mixing cylinder is rotatably connected to the fixed outer cylinder, which is coaxially arranged outside it, via bearings. The tail end of the mixing cylinder is fixedly connected to a plug-in connector by bolts. The main body of the plug-in connector is frustoconical, with its larger diameter end connected to the mixing cylinder. The head end of the mixing cylinder is recessed to form an inlet and outlet port. Spiral blades are welded to the inner wall of the mixing cylinder. A connecting seat is welded to the outer surface of the fixed outer cylinder facing the bottom of the support. Multiple track supports parallel to the axis of the mixing cylinder are welded to the bottom of the support below the connecting seat. A section of the track support facing the plug-in connector... Two vertically parallel lifting track grooves are provided, and two vertically parallel translation track grooves are provided on the section of the track support facing the inlet and outlet. Sliding shafts in the two lifting track grooves are fixedly connected to connecting rod A. Connecting rod A is also connected to a connecting seat on the fixed outer cylinder through a rotating shaft. Sliding shafts in the two translation track grooves are fixedly connected to connecting rod B. Connecting rod B is also connected to a connecting seat on the fixed outer cylinder through a rotating shaft. One end of the driving hydraulic cylinder is hinged to the driving hydraulic cylinder through a pin, and the other end of the driving hydraulic cylinder is hinged between two adjacent track supports. The tail end of the mixing cylinder is provided with a docking socket for plugging and unplugging the tail end of the mixing cylinder. The docking socket is driven by a stirring drive motor.

[0006] As a further aspect of the present invention: the lifting track groove includes a horizontal groove and an upwardly inclined groove connected to each other, and the upwardly inclined groove is located on the side close to the translation track groove, that is, the mixing cylinder indirectly connected to it can be moved by driving the hydraulic cylinder to push and pull the connecting rod B.

[0007] As a further embodiment of the present invention: the side of the docking socket facing away from the mixing cylinder is fixedly connected to one end of the counterweight block, and the other side of the counterweight block is integrally formed with a main shaft. The main shaft is rotatably connected to the bracket through a bearing. The end of the main shaft is also fixedly connected to a driven pulley. The driven pulley is connected to a belt groove of a composite pulley rotatably disposed on the bracket through a belt drive. The other belt groove of the composite pulley is connected to a driving pulley fixed on the output shaft of the stirring drive motor through a belt drive. The stirring drive motor is fixedly mounted on the bracket.

[0008] As a further aspect of the present invention: the docking socket includes a rotating plate and several rotating wheels rotatably distributed around its rotation center. The rotating wheels are frustum-shaped and their central shafts are fixedly connected to the rotating plate. The smaller diameter end of the rotating wheel faces the mixing cylinder, that is, the several rotating wheels form a pull slot with a guide angle; the plug-in connector connected to the tail end of the mixing cylinder can be engaged and snapped together.

[0009] As a further aspect of the present invention: the outer surface of the rotating wheel is parallel to the outer surface of the connector, the height of the rotating wheel is greater than the height of the connector, and the maximum inner diameter of the circular slot formed by the rotating wheel is the same as the diameter of one end of the maximum diameter of the connector.

[0010] As a further aspect of the present invention: the outer surface of the fixed outer cylinder is fixedly connected to the discharge drive motor by bolts, the output end of the discharge drive motor is fixedly connected to the discharge drive gear, and the discharge drive gear is meshed with the gear ring fixed on the surface of the mixing cylinder.

[0011] As a further aspect of the present invention: the inlet and outlet of the mixing cylinder are inserted into a through hole opened on the side of the inlet and outlet structure, and the inlet and outlet structure is a square tube with through holes at both the top and bottom; the outer surface of the inlet and outlet structure is fixedly connected to the fixed outer cylinder by a fixed bracket, and a guide plate dividing it into upper and lower parts is welded inside the inlet and outlet structure, and one end of the guide plate is inclined downward and extends into the mixing cylinder from the through hole on the side of the inlet and outlet structure, so that the material falling from the inlet at the top of the inlet and outlet structure is guided into the mixing cylinder.

[0012] As a further aspect of the present invention: the inlet and outlet structure for inserting into the inlet and outlet port of the mixing cylinder is surrounded by an outwardly tapering annular plate.

[0013] As a further aspect of the present invention: a fixed annular bracket is welded to the outer surface of the inlet and outlet of the mixing cylinder, and a movable annular bracket is fixedly connected to one side of the fixed annular bracket by bolts. Both the movable annular bracket and the fixed annular bracket are located inside the annular enclosure. At the same time, a shielding curtain is clamped between the movable annular bracket and the fixed annular bracket. The width of the shielding curtain is equal to the distance between the outer wall of the inlet and outlet of the mixing cylinder and the inner wall of the annular enclosure.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can carry out continuous phosphogypsum mixing production. Through the separable structure of the mixing cylinder and the power source, the motor does not need to be stopped during operation. The design of the counterweight can store energy to ensure that the rotating docking socket has high rotational inertia, and the mixing cylinder can quickly achieve rotational stirring and mixing after docking. In contrast, the present invention can reduce the number of motor start-up and shutdown operations, relatively reduce energy consumption and operation time, and has a better cost performance in continuous stirring production operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a mixing and stirring device used in the production of phosphogypsum.

[0016] Figure 2 A schematic diagram showing the state of the mixing and stirring device used in phosphogypsum production during material discharge.

[0017] Figure 3 This is a side view of the mixing and stirring device used in the production of phosphogypsum.

[0018] Figure 4 This is a schematic diagram of the docking socket in a mixing and stirring device for phosphogypsum production.

[0019] Figure 5 for Figure 1 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Mixing cylinder; 2. Fixed outer cylinder; 3. Discharge drive motor; 4. Discharge drive gear; 5. Gear ring; 6. Connecting socket; 7. Counterweight; 8. Bracket; 9. Stirring drive motor; 10. Composite pulley; 11. Track bracket; 12. Connecting rod A; 13. Lifting track groove; 14. Drive hydraulic cylinder; 15. Connecting rod B; 16. Translation track groove; 17. Infeed / outfeed structure; 18. Guide plate; 19. Fixed bracket; 20. Rotary wheel; 21. Plug; 22. Fixed annular bracket; 23. Blindfold; 24. Movable annular bracket. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 In this embodiment of the invention, a mixing and stirring device for phosphogypsum production includes a mixing cylinder 1, a fixed outer cylinder 2, a discharge drive motor 3, and a docking socket 6. The outer surface of the middle part of the mixing cylinder 1 is rotatably connected to the fixed outer cylinder 2, which is coaxially arranged outside it, through a bearing. The tail end of the mixing cylinder 1 is fixedly connected to a plug 21 by bolts. The main body of the plug 21 is frustum-shaped, and the end with a larger diameter is connected to the mixing cylinder 1. The head end port of the mixing cylinder 1 is recessed to form an inlet and outlet port.

[0023] The inner wall of the mixing cylinder 1 is welded with helical blades. The helical blades, in conjunction with a motor drive, enable the mixing cylinder 1 to rotate in both directions for feeding, mixing, and discharging operations.

[0024] The outer surface of the fixed outer cylinder 2 is welded with a connecting seat facing the bottom of the support 8. Below the connecting seat, on the bottom of the support 8, multiple track supports 11 parallel to the axis of the mixing cylinder 1 are welded. Two vertically parallel lifting track grooves 13 are formed on the section of the track support 11 facing the connector 21, and two vertically parallel translation track grooves 16 are formed on the section of the track support 11 facing the inlet / outlet. Sliding shafts within the two lifting track grooves 13 are fixedly connected to the connecting rod A12. The connecting rod A12 is also connected to the connecting seat on the fixed outer cylinder 2 via a rotating shaft. A sliding shaft slidably disposed within the translation track groove 16 is fixedly connected to a connecting rod B15. The connecting rod B15 is also connected to a connecting seat on the fixed outer cylinder 2 via a rotating shaft. The connecting rod B15 is hinged to one end of a driving hydraulic cylinder 14 via a pin, and the other end of the driving hydraulic cylinder 14 is hinged between two adjacent track supports 11. The lifting track groove 13 includes a horizontal groove and an upwardly inclined groove that are interconnected. The upwardly inclined groove is located on the side close to the translation track groove 16. That is, by pushing and pulling the connecting rod B15 through the driving hydraulic cylinder 14, the mixing cylinder 1 indirectly connected to it can move.

[0025] The tail end of the mixing cylinder 1 is provided with a docking socket 6 for plugging and unplugging the mixing cylinder 1. One end of the counterweight 7 is fixedly connected to the side of the docking socket 6 facing away from the mixing cylinder 1. The other side of the counterweight 7 is integrally formed with a main shaft. The main shaft is rotatably connected to the bracket 8 via bearings (the bracket 8 includes a base and a vertical frame welded to the base to facilitate the installation of various accessories). A driven pulley is also fixedly connected to the end of the main shaft. The driven pulley is connected to one belt groove of a composite pulley 10 rotatably mounted on the bracket 8 via belt drive. The other belt groove of the composite pulley 10 is connected to a driving pulley fixed on the output shaft of the stirring drive motor 9 via belt drive. The stirring drive motor 9 is fixedly mounted on the bracket 8. The stirring drive motor 9 indirectly drives the docking socket 6 to rotate, which can achieve plugging and unplugging of the mixing cylinder 1 while keeping the docking socket 6 rotating. This operation method can reduce the number of start-up and shutdown steps, relatively reduce energy consumption and operation time, and has a good cost performance in continuous stirring production operations, especially in phosphogypsum production.

[0026] The docking socket 6 includes a rotating plate and several rotating wheels 20 that rotate around its rotation center. The rotating wheels 20 are frustum-shaped and their central shafts are fixedly connected to the rotating plate. The smaller diameter end of the rotating wheel 20 faces the mixing cylinder 1. That is, the several rotating wheels 20 form a pull slot with a guide angle. The plug 21 connected to the tail end of the mixing cylinder 1 can be engaged and snapped together.

[0027] In a preferred embodiment, the outer surface of the rotating wheel 20 is parallel to the outer surface of the plug 21, the height of the rotating wheel 20 is greater than the height of the plug 21, and the maximum inner diameter of the circular slot formed by the rotating wheel 20 is the same as the diameter of one end of the maximum diameter of the plug 21.

[0028] The outer surface of the fixed outer cylinder 2 is fixedly connected to the discharge drive motor 3 by bolts (the discharge drive motor 3 can be a common three-phase AC motor connected to the power supply by a switch). The output end of the discharge drive motor 3 is fixedly connected to the discharge drive gear 4. The discharge drive gear 4 meshes with the gear ring 5 fixed on the surface of the mixing cylinder 1. The discharge drive motor 3 drives the mixing cylinder 1 to rotate in the opposite direction, providing power for discharge.

[0029] The specific setup is as follows: the spiral blades inside the mixing cylinder 1 are driven by the rotating docking socket 6 to convey the material to the tail end. That is, the mixing of the material is achieved by the stirring of the mixing cylinder 1 and the action of the material hitting the inner wall of the plug 21. At the same time, when the mixing cylinder 1 is pulled out and the tail end is lifted under the restriction of the lifting track groove 13, the discharge drive motor 3 drives the mixing cylinder 1 in the opposite direction (opposite to the rotation direction of the docking socket 6) so that the spiral blades inside can convey the material to the inlet and outlet positions, thus completing the discharge action.

[0030] The inlet and outlet of the mixing cylinder 1 are inserted into the through hole on the side of the inlet and outlet structure 17. The inlet and outlet structure 17 is a square tube with through holes at both the top and bottom. The inlet and outlet structure 17 is surrounded by an annular circumferential plate with an outward narrowing around the through hole of the inlet and outlet of the mixing cylinder 1. The outer surface of the inlet and outlet structure 17 is fixedly connected to the fixed outer cylinder 2 by a fixed bracket 19. At the same time, a guide plate 18 is welded inside the inlet and outlet structure 17, which divides it into upper and lower parts. One end of the guide plate 18 is inclined downward and extends into the mixing cylinder 1 from the through hole on the side of the inlet and outlet structure 17, so that the material falling from the inlet at the top of the inlet and outlet structure 17 can be guided into the mixing cylinder 1.

[0031] Furthermore, a fixed annular support 22 is welded to the outer surface of the inlet and outlet of the mixing cylinder 1. A movable annular support 24 is fixedly connected to one side of the fixed annular support 22 by bolts. Both the movable annular support 24 and the fixed annular support 22 are located inside the annular enclosure. At the same time, a shielding curtain 23 is clamped between the movable annular support 24 and the fixed annular support 22. The width of the shielding curtain 23 is equal to the distance between the outer wall of the inlet and outlet of the mixing cylinder 1 and the inner wall of the annular enclosure, so that the shielding curtain 23 can be opened by centrifugal force when rotating to reduce the spillage of dust.

[0032] In actual use, the stirring drive motor 9 can be started in advance to make the docking socket 6 rotate. The hydraulic system of the driving hydraulic cylinder 14 is manually controlled to indirectly drive the mixing cylinder 1 to move and insert the tail end plug 21 into the docking socket 6, causing it to rotate. Then, the material is added to the top feed port of the feeding and discharging structure 17 by the conveying equipment or manually for mixing. After the mixing is completed, the hydraulic system of the driving hydraulic cylinder 14 is manually controlled to indirectly drive the mixing cylinder 1 to move in the opposite direction and disengage from the docking socket 6. Under the guidance of the lifting track groove 13, the tail end is slightly lifted. When it reaches the predetermined position, after the mixing cylinder 1 stops rotating, the discharge drive motor 3 is manually controlled to work, driving the mixing cylinder 1 to rotate in the opposite direction to achieve discharge.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mixing and stirring device for phosphogypsum production, comprising a mixing cylinder (1), a fixed outer cylinder (2), a discharge driving motor (3) and a butt socket (6), the middle outer surface of the mixing cylinder (1) is rotatably connected to the coaxially arranged fixed outer cylinder (2) outside thereof through a bearing, the tail end of the mixing cylinder (1) is fixedly connected to a plug-in connector (21) through a bolt, the main body of the plug-in connector (21) is a circular truncated cone, and the end with a larger diameter is connected to the mixing cylinder (1); the head end port of the mixing cylinder (1) is inwardly recessed into an inlet and outlet port; the inner wall of the mixing cylinder (1) is welded with helical blades; the outer surface of the fixed outer cylinder (2) is welded with a connecting seat towards the bottom of a support (8), a plurality of track supports (11) parallel to the axis of the mixing cylinder (1) are welded on the bottom of the corresponding support (8) below the connecting seat; two upwardly parallel lifting track grooves (13) are formed on a section of the track support (11) towards the plug-in connector (21), two upwardly parallel translation track grooves (16) are formed on a section of the track support (11) towards the inlet and outlet port, the sliding shafts slidably arranged in the two lifting track grooves (13) are fixedly connected to a connecting rod A (12), the connecting rod A (12) is further connected to the connecting seat on the fixed outer cylinder (2) through a rotating shaft, the sliding shafts slidably arranged in the two translation track grooves (16) are fixedly connected to a connecting rod B (15), the connecting rod B (15) is further connected to the connecting seat on the fixed outer cylinder (2) through a rotating shaft; one end of the connecting rod B (15) is hingedly connected to a driving hydraulic cylinder (14) through a pin shaft, the other end of the driving hydraulic cylinder (14) is hingedly connected between two adjacent track supports (11); the tail end of the mixing cylinder (1) is correspondingly provided with the butt socket (6) for pulling and connecting the tail end of the mixing cylinder (1), and the butt socket (6) is driven by a stirring driving motor (9).

2. The mixing and stirring device for producing phosphogypsum according to claim 1, characterized in that, The lifting track groove (13) comprises a horizontal groove and an upwardly inclined groove connected to each other, and the upwardly inclined groove is located on the side close to the translation track groove (16), that is, the driving hydraulic cylinder (14) pushes and pulls the connecting rod B (15) to enable the indirectly connected mixing cylinder (1) to move.

3. The mixing and stirring device for producing phosphogypsum according to claim 2, characterized in that, One end of the counterweight (7) is fixedly connected to the back of the mixing cylinder (1), the other end of the counterweight (7) is integrally formed with a main shaft, the main shaft is rotatably connected to the support (8) through a bearing, the end of the main shaft is further fixedly connected to a driven pulley, the driven pulley is drivingly connected to one belt groove of a composite pulley (10) rotatably arranged on the support (8) through a belt, the other belt groove of the composite pulley (10) is drivingly connected to a driving pulley fixed on the output shaft of the stirring driving motor (9) through a belt, and the stirring driving motor (9) is fixedly installed on the support (8).

4. The mixing and stirring device for producing phosphogypsum according to claim 3, characterized in that, The docking socket (6) comprises a rotating plate and a plurality of rotating wheels (20) distributed around the rotating center of the rotating plate, the rotating wheel (20) is a circular truncated cone and the central axis is fixedly connected to the rotating plate, the smaller diameter end of the rotating wheel (20) faces the mixing cylinder (1), that is, the plurality of rotating wheels (20) form a plug-in slot with a guide angle; the plug-in slot and the plug-in connector (21) connected to the tail end of the mixing cylinder (1) can be matched and clamped.

5. The mixing and stirring device for producing phosphogypsum according to claim 4, characterized in that, The outer surface of the rotating wheel (20) is spatially parallel to the outer surface of the plug-in connector (21), the height of the rotating wheel (20) is greater than the height of the plug-in connector (21), and the maximum inner diameter of the circular plug-in slot surrounded by the rotating wheel (20) is the same as the diameter of one end of the maximum diameter of the plug-in connector (21).

6. The mixing and stirring device for producing phosphogypsum according to claim 1, 2, 3 or 4, characterized in that, The outer surface of the fixed outer cylinder (2) is fixedly connected with the discharging driving motor (3) through bolts, the output end of the discharging driving motor (3) is fixedly connected with the discharging driving gear (4), and the discharging driving gear (4) is meshingly connected with the fixed gear ring (5) on the surface of the mixing cylinder (1).

7. The mixing and stirring device for producing phosphogypsum according to claim 6, characterized in that, The inlet and outlet of the mixing cylinder (1) is inserted into the through hole provided on the side of the inlet and outlet structure (17), and the inlet and outlet structure (17) is a square tube with through holes on the top and bottom; the outer surface of the inlet and outlet structure (17) is fixedly connected to the fixed outer cylinder (2) through the fixed support (19), and the inside of the inlet and outlet structure (17) is welded with the guide plate (18) which divides it into two parts, and one end of the guide plate (18) is inclined downward and extends into the mixing cylinder (1) from the through hole on the side of the inlet and outlet structure (17), so that the material falling from the position of the inlet on the top of the inlet and outlet structure (17) is guided into the mixing cylinder (1).

8. The mixing and stirring device for producing phosphogypsum according to claim 7, characterized in that, The outer periphery of the through hole of the inlet and outlet of the mixing cylinder (1) is welded with an outwardly tapered annular fence.

9. The mixing and stirring device for producing phosphogypsum according to claim 8, characterized in that, The outer surface of the inlet and outlet of the mixing cylinder (1) is welded with a fixed annular support (22), one side of the fixed annular support (22) is fixedly connected with a movable annular support (24) through bolts, the movable annular support (24) and the fixed annular support (22) are located in the annular fence, and a shielding curtain (23) is clamped and connected between the movable annular support (24) and the fixed annular support (22), the width of the shielding curtain (23) is equal to the distance between the outer wall of the inlet and outlet of the mixing cylinder (1) and the inner wall of the annular fence.

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