Mixing device for producing calcium-zinc stabilizer

Abstract

The utility model relates to the technical field of mixing equipment, and particularly discloses a mixing device for producing a calcium-zinc stabilizer, which comprises a mixing box, a premixing box fixedly arranged at the top end of the mixing box and a feed port arranged at the top end of the premixing box, a premixing cavity is arranged in the middle of the premixing box, the feed port is communicated with the premixing cavity, and a discharge port is arranged at the bottom of the premixing cavity. A first through hole is formed in the bottom end of the premixing box, a conveying pipe matched with the first through hole is fixedly arranged at the bottom end of the premixing box, a first motor is fixedly arranged on the side wall of the premixing box, a rotating shaft is rotationally arranged in the premixing cavity, the output end of the first motor is fixedly connected with the rotating shaft, a rotating frame is fixedly arranged on the outer surface of one end of the rotating shaft, and a first scraper is fixedly connected to one side of the rotating frame; spiral blades are fixedly arranged on the outer surface of one side of the rotating shaft. According to the premixing device, materials input into the premixing box can be premixed, the layering phenomenon caused by mutual stacking of the raw materials input into the device is avoided, and the mixing efficiency and the mixing effect of the whole device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and specifically discloses a mixing device for producing calcium-zinc stabilizers. Background Technology

[0002] Calcium-zinc stabilizers are stabilizers used in the processing of plastics such as polyvinyl chloride (PVC). PVC stabilizers primarily work through the synergistic effect of calcium and zinc salts to inhibit thermal degradation and aging of PVC during processing and use, maintaining its performance stability. Compared to some traditional stabilizers, calcium-zinc stabilizers have advantages such as being environmentally friendly and non-toxic, meeting current environmental and safety requirements. Calcium-zinc stabilizers can improve the processing performance of PVC products, increasing product quality and service life.

[0003] Currently, in the production of calcium-zinc stabilizers, the production materials need to be thoroughly mixed using a mixing device. The purpose is to ensure that the various raw materials are evenly distributed, thereby facilitating sufficient contact between different raw materials, promoting the chemical reaction, and ultimately forming a stabilizer product with the required properties. However, most existing mixing devices simply pour multiple raw materials into the mixing drum sequentially and then stir them directly without pre-mixing. This not only leads to the raw materials piling up and forming layers, but also hinders mixing and reduces the efficiency and mixing effect of the entire mixing device, while increasing the mixing time. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a mixing device for producing calcium-zinc stabilizers, which solves the problem that the existing mixing devices do not premix the raw materials, which not only leads to the stacking of raw materials and the formation of stratification, but also hinders mixing and stirring, reduces the efficiency and mixing effect of the entire mixing device, and increases the mixing time.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The mixing device for producing calcium-zinc stabilizer includes a mixing box, a premixing box fixedly installed at the top of the mixing box, and several inlets opened at the top of the premixing box. Several premixing chambers are opened through the middle of the premixing box, and the several inlets are connected to the several premixing chambers. The bottom of the premixing chambers is opened with an outlet. Several first through holes are opened through the bottom of the premixing box. Several conveying pipes are fixedly installed at the bottom of the premixing box in conjunction with the several first through holes. A first motor is fixedly installed on the side wall of the premixing box. A rotating shaft is rotatably installed in each of the several premixing chambers. The output end of the first motor passes through the premixing box and is fixedly connected to one of the rotating shafts. A rotating frame is fixedly sleeved on the outer surface of the rotating shaft near the first motor. Several first scrapers are fixedly connected to the side of the rotating frame away from the first motor. A spiral blade is fixedly sleeved on the outer surface of the rotating shaft away from the rotating frame.

[0007] Furthermore, there are two premixing chambers arranged symmetrically, and the first motor is fixedly installed at one end of one of the premixing chambers.

[0008] Furthermore, a drive wheel is rotatably provided at the end of the premixing chamber that is fixedly connected to the first motor away from the first motor, and a driven wheel is rotatably provided at the end of the other premixing chamber that is away from the first motor. The outer surfaces of the drive wheel and the driven wheel are fitted with internal toothed belts.

[0009] Furthermore, the end of the shaft that is fixedly connected to the first motor is fixedly connected to the drive wheel at the end away from the first motor, and the other shaft is fixedly connected to the driven wheel at the end away from the first motor.

[0010] Furthermore, a second motor is fixedly installed at the middle of the bottom of the mixing box. The output end of the second motor passes through the mixing box and is fixedly connected to a rotating frame. Several support rods are fixedly installed at the top of the rotating frame. Second scrapers are fixedly installed on the opposite sides of the support rods. The second scrapers are tightly fitted to the inner wall of the mixing box. Several stirring rods are fixedly installed on the opposite sides of the support rods.

[0011] Furthermore, the cross-section of the rotating frame is generally cross-shaped, with four support rods evenly and spaced at the four ends of the rotating frame, and several stirring rods evenly and spaced at the opposite sides of the four support rods.

[0012] Furthermore, a flow guide platform is fixedly installed at the center of the bottom of the premix box cavity. The flow guide platform has a frustum structure, and several first through holes are evenly and spaced along the circumference of the flow guide platform on the outer side of the bottom of the flow guide platform.

[0013] Furthermore, a guide plate is fixedly installed on the top of the inner wall of the mixing box. The guide plate has a trumpet-shaped structure, and the small diameter end of the guide plate is located below the large diameter end. Several second through holes are evenly and spaced on the top of the mixing box, and several discharge pipes are evenly and spaced on the bottom of the mixing box.

[0014] Furthermore, a number of first through holes and a number of second through holes are provided in combination, and the number of first through holes and the number of second through holes are fixedly connected by a number of conveying pipes.

[0015] Furthermore, support legs are fixedly installed at the four corners of the bottom of the mixing box, and the mixing box and the premixing box are fixedly connected by a connecting mechanism fixedly installed on both sides.

[0016] The beneficial effects of this utility model are:

[0017] This invention, by setting up a premixing tank, a first motor, a rotating shaft, a spiral blade, and a first scraper, can perform preliminary premixing treatment on the materials input into the premixing tank, thereby avoiding the accumulation of raw materials inside the device and forming a layering phenomenon. At the same time, it can improve the mixing efficiency and mixing effect of the entire device, making it more practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a longitudinal cross-sectional view of the premix box of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the rotating shaft, rotating frame, first scraper and spiral blade of this utility model;

[0022] Figure 5 This is a partial cross-sectional view of the mixing box, second motor, rotating frame, support rod, second scraper, stirring rod, guide plate, second through hole and discharge pipe of this utility model.

[0023] In the diagram: 1. Mixing box; 2. Premixing box; 3. Inlet; 4. Premixing chamber; 5. Outlet; 6. First through hole; 7. Feed pipe; 8. First motor; 9. Rotating shaft; 10. Rotating frame; 11. First scraper; 12. Spiral blade; 13. Driving wheel; 14. Internal toothed belt; 15. Driven wheel; 16. Second motor; 17. Rotating frame; 18. Support rod; 19. Second scraper; 20. Stirring rod; 21. Guide plate; 22. Second through hole; 23. Outlet pipe; 24. Guide platform; 25. Connecting mechanism. Detailed Implementation

[0024] The present invention will now be described and explained in detail with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-5As shown, the mixing device for producing calcium-zinc stabilizer includes a mixing box 1, a premixing box 2 fixedly installed at the top of the mixing box 1, and several inlets 3 opened at the top of the premixing box 2. Several premixing chambers 4 are opened through the middle of the premixing box 2, and the several inlets 3 are connected to the several premixing chambers 4. A discharge port 5 is opened at the bottom of the premixing chamber 4. Several first through holes 6 are opened through the bottom of the premixing box 2. Several conveying pipes 7 are fixedly installed at the bottom of the premixing box 2 in conjunction with the several first through holes 6. A first motor 8 is fixedly installed on the side wall of the premixing box 2. A rotating shaft 9 is rotatably installed in each of the several premixing chambers 4. The output end of the first motor 8 passes through the premixing box 2 and is fixedly connected to one of the rotating shafts 9. A rotating frame 10 is fixedly sleeved on the outer surface of the rotating shaft 9 near the first motor 8. Several first scrapers 11 are fixedly connected on the side of the rotating frame 10 away from the first motor 8. A spiral blade 12 is fixedly sleeved on the outer surface of the rotating shaft 9 away from the rotating frame 10.

[0027] A flow guide platform 24 is fixedly installed in the middle of the bottom of the premix box 2. The flow guide platform 24 is in the shape of a frustum. Several first through holes 6 are evenly and spaced along the circumference of the flow guide platform 24 on the outer side of the bottom of the flow guide platform 24.

[0028] Several inlets 3 are symmetrically distributed along the vertical center line of the premixing box 2; the top end of the conveying pipe 7 is connected to the premixing box 2, and the bottom end of the conveying pipe 7 is connected to the mixing box 1; since several first through holes 6 are evenly and spaced along the circumference of the guide platform 24 on the outer side of the bottom end of the guide platform 24, and the first through holes 6 are connected to the conveying pipe 7, the premixed material can be dispersed and output through the several first through holes 6, thereby improving the further mixing effect of the subsequent material.

[0029] During operation, the raw materials for the production of calcium-zinc stabilizer to be mixed are input into the premixing chamber 4 through several inlets 3 at the top of the premixing tank 2. Then, the first motor 8 is started to rotate the shaft 9. The rotation of the shaft 9 drives the spiral blade 12 to rotate. When the spiral blade 12 rotates, it can perform preliminary premixing treatment on the materials input into the premixing chamber 4, and at the same time, it can push the premixed raw materials. When the premixed raw materials are pushed to the top of the outlet 5, the premixed raw materials are output to the bottom of the inner cavity of the premixing tank 2 through the outlet 5. Then, under the action of the guide table 24, the premixed raw materials are dispersed and input through several first through holes 6. In the several conveying pipes 7, it is worth noting that an annular groove is provided outside the first through hole 6. Each group of first through holes 6 is located at the lowest point of the annular groove, so that the raw materials can be discharged downward through the bottom first through hole 6, which facilitates the subsequent input of the raw materials into the mixing box 1 through the conveying pipe 7. At the same time, the rotating frame 10 will rotate during the rotation of the rotating shaft 9. Since the first scraper 11 is fixedly connected to the rotating frame 10, the rotation of the rotating frame 10 can drive the first scraper 11 to rotate along the inner wall of the premixing chamber 4, thereby scraping off the material attached to the inner wall of the premixing chamber 4 and preventing it from affecting the subsequent premixing treatment of the material.

[0030] There are two symmetrically arranged premixing chambers 4, and the first motor 8 is fixedly installed at one end of one of the premixing chambers 4.

[0031] A drive wheel 13 is rotatably mounted on one end of the premixing chamber 4 that is fixedly connected to the first motor 8 and away from the first motor 8. A driven wheel 15 is rotatably mounted on the other end of the premixing chamber 4 that is away from the first motor 8. An internal toothed belt 14 is fitted on the outer surface of the drive wheel 13 and the driven wheel 15.

[0032] One end of the shaft 9 of the first motor 8, which is fixedly connected to the first motor 8, is fixedly connected to the drive wheel 13, and the other end of the shaft 9, which is fixedly connected to the driven wheel 15, is fixedly connected to the driven wheel 15.

[0033] With the above configuration, the inner sidewall of the internal toothed belt 14 is provided with fine teeth. The internal toothed belt 14 is meshed with the driving wheel 13 and the driven wheel 15 through the teeth. During operation, the rotating shaft 9 rotates, driving the driving wheel 13 to rotate. Then, through the meshing connection between the driving wheel 13 and the internal toothed belt 14, the internal toothed belt 14 rotates, thereby driving the driven wheel 15 to rotate, realizing the synchronous rotation of the two spiral blades 12. By setting the driving wheel 13, the internal toothed belt 14 and the driven wheel 15, the synchronous rotation of the two rotating shafts 9 in the premixing box 1 can be realized, thereby realizing the synchronous rotation of the rotating frame 10, the first scraper 11 and the spiral blades 12 in the two premixing chambers 4, which facilitates better mixing of the raw materials for producing calcium-zinc stabilizers.

[0034] A second motor 16 is fixedly installed at the middle of the bottom of the mixing box 1. The output end of the second motor 16 passes through the mixing box 1 and is fixedly connected to a rotating frame 17. Several support rods 18 are fixedly installed at the top of the rotating frame 17. Second scrapers 19 are fixedly installed on the opposite sides of the support rods 18. The second scrapers 19 are tightly attached to the inner wall of the mixing box 1. Several stirring rods 20 are fixedly installed on the opposite sides of the support rods 18.

[0035] The rotating frame 17 has a cross-shaped cross-section. There are four support rods 18, which are evenly and spaced at the four ends of the rotating frame 17. Several stirring rods 20 are evenly and spaced at the opposite sides of the four support rods 18.

[0036] With the above settings, during operation, when the premixed raw materials are input into the mixing chamber 1, the second motor 16 is started to make the rotating frame 17 rotate. The rotation of the rotating frame 17 drives the support rod 18 to rotate, realizing the synchronous rotation of the rotating frame 17 and the support rod 18. The rotation of the support rod 18 drives several stirring rods 20 to rotate synchronously, which facilitates the subsequent mixing and stirring of the materials input into the mixing chamber 1 by the rotation of the stirring rods 20. Since the second scraper 19 is attached to the inner wall of the mixing chamber 1, and the rotation of the support rod 18 can drive the second scraper 19 to rotate, the rotation of the second scraper 19 can clean the inner wall of the mixing chamber 1, preventing raw materials from remaining on the inner wall of the mixing chamber 1 and affecting the subsequent mixing effect of the raw materials.

[0037] A guide plate 21 is fixedly installed on the top of the inner wall of the mixing box 1. The guide plate 21 has a trumpet-shaped structure, and the small diameter end of the guide plate 21 is located below the large diameter end. Several second through holes 22 are evenly and spaced on the top of the mixing box 1, and several discharge pipes 23 are evenly and spaced on the bottom of the mixing box 1.

[0038] With the above setup, several discharge pipes 23 are symmetrically distributed on both sides of the bottom of the mixing box 1, and the discharge pipes 23 are controlled to open and close by a solenoid valve. During operation, the premixed material that is input into the mixing box 1 through the second through hole 22 will rotate along the guide plate 21, and then be input to the bottom of the inner cavity of the mixing box 1 under the action of the guide plate 21, so as to facilitate better mixing of the raw materials in the future. The raw materials after mixing can be output through the discharge pipes 23.

[0039] A plurality of first through holes 6 and a plurality of second through holes 22 are provided together, and the plurality of first through holes 6 and a plurality of second through holes 22 are fixedly connected by a plurality of material conveying pipes 7.

[0040] Support legs are fixedly installed at the four corners of the bottom of the mixing box 1. The mixing box 1 and the premixing box 2 are fixedly connected by the connecting mechanism 25 fixedly installed on both sides.

[0041] Working principle and process:

[0042] The raw materials for the production of calcium-zinc stabilizer are fed into the premixing chamber 4 through several inlets 3 at the top of the premixing chamber 2. Then, the first motor 8 is started, causing the rotating shaft 9 to drive the spiral blade 12 to rotate, performing preliminary premixing of the materials fed into the premixing chamber 4. At the same time, the premixed raw materials are pushed. When the premixed raw materials are pushed above the outlet 5, they are output to the bottom of the inner cavity of the premixing chamber 2 through the outlet 5 and fed into the conveying pipe 7 through the first through hole 6, facilitating the subsequent input of raw materials into the mixing chamber 1 through the conveying pipe 7. Meanwhile, the rotation of the rotating shaft 9 causes the rotating frame 10 to rotate. Since the first scraper 11 is fixedly connected to the rotating frame 10, the rotation of the rotating frame 10 can drive the first scraper 11 along the premixing process. The inner wall of cavity 4 rotates, thereby scraping off the material adhering to the inner wall of premixing cavity 4 to prevent it from affecting the subsequent premixing process. At the same time, the rotation of shaft 9 drives the drive wheel 13 to rotate, and then the drive wheel 13 meshes with the internal toothed belt 14 to make the internal toothed belt 14 rotate, which in turn drives the driven wheel 15 to rotate, realizing the synchronous rotation of the spiral blades 12 on both sides. This facilitates the synchronous premixing process of the raw materials in the two premixing cavities 4. When the premixed raw materials are input into mixing box 1, the second motor 16 is started to make the rotating frame 17 drive the support rod 18 to rotate. The rotation of the support rod 18 realizes the synchronous rotation of several stirring rods 20, which facilitates the subsequent mixing and stirring process of the materials input into mixing box 1 by the rotation of the stirring rods 20.

Claims

1. A mixing device for producing calcium-zinc stabilizers, comprising a mixing chamber (1), a premixing chamber (2) fixedly disposed at the top of the mixing chamber (1), and a plurality of feed inlets (3) opened at the top of the premixing chamber (2), characterized in that, A number of premixing chambers (4) are opened through the middle of the premixing box (2), and a number of inlets (3) are connected to the number of premixing chambers (4). A discharge port (5) is opened at the bottom of the premixing chamber (4). A number of first through holes (6) are opened through the bottom of the premixing box (2). A number of conveying pipes (7) are fixedly installed at the bottom of the premixing box (2) in conjunction with the number of first through holes (6). A first motor (8) is fixedly installed on the side wall of the premixing box (2). A rotating shaft (9) is rotatably installed in each of the number of premixing chambers (4). The output end of the first motor (8) passes through the premixing box (2) and is fixedly connected to one of the rotating shafts (9). A rotating frame (10) is fixedly sleeved on the outer surface of the rotating shaft (9) near the first motor (8). A number of first scrapers (11) are fixedly connected on the side of the rotating frame (10) away from the first motor (8). A spiral blade (12) is fixedly sleeved on the outer surface of the rotating shaft (9) away from the rotating frame (10).

2. The mixing apparatus for producing calcium-zinc stabilizer according to claim 1, characterized in that, There are two symmetrical premixing chambers (4), and the first motor (8) is fixedly installed at one end of one of the premixing chambers (4).

3. The mixing apparatus for producing calcium-zinc stabilizer according to claim 2, characterized in that, A drive wheel (13) is rotatably provided at one end of the premixing chamber (4) that is fixedly connected to the first motor (8) away from the first motor (8), and a driven wheel (15) is rotatably provided at one end of the other premixing chamber (4) away from the first motor (8). An internal toothed belt (14) is fitted on the outer surface of the drive wheel (13) and the driven wheel (15).

4. The mixing apparatus for producing calcium-zinc stabilizer according to claim 3, characterized in that, One end of the shaft (9) that is fixedly connected to the first motor (8) away from the first motor (8) is fixedly connected to the drive wheel (13), and the other end of the shaft (9) that is fixedly connected to the driven wheel (15) away from the first motor (8).

5. The mixing apparatus for producing calcium-zinc stabilizer according to claim 1, characterized in that, A second motor (16) is fixedly installed at the middle of the bottom of the mixing box (1). The output end of the second motor (16) passes through the mixing box (1) and is fixedly connected to a rotating frame (17). Several support rods (18) are fixedly installed at the top of the rotating frame (17). Second scrapers (19) are fixedly installed on the opposite sides of the several support rods (18). The several second scrapers (19) are tightly attached to the inner wall of the mixing box (1). Several stirring rods (20) are fixedly installed on the opposite sides of the several support rods (18).

6. The mixing apparatus for producing calcium-zinc stabilizer according to claim 5, characterized in that, The cross-section of the rotating frame (17) is generally cross-shaped. There are four support rods (18). The four support rods (18) are evenly and spaced at the four ends of the rotating frame (17). Several stirring rods (20) are evenly and spaced at the opposite sides of the four support rods (18).

7. The mixing apparatus for producing calcium-zinc stabilizer according to claim 1, characterized in that, A flow guide platform (24) is fixedly installed in the middle of the bottom of the premix box (2). The flow guide platform (24) is in the shape of a frustum. Several first through holes (6) are evenly and spaced along the circumference of the flow guide platform (24) on the outer side of the bottom of the flow guide platform (24).

8. The mixing apparatus for producing calcium-zinc stabilizer according to claim 7, characterized in that, A guide plate (21) is fixedly installed on the top of the inner wall of the mixing box (1). The guide plate (21) has a trumpet-shaped structure, and the small diameter end of the guide plate (21) is located below the large diameter end. Several second through holes (22) are evenly and spaced apart on the top of the mixing box (1), and several discharge pipes (23) are evenly and spaced apart on the bottom of the mixing box (1).

9. The mixing apparatus for producing calcium-zinc stabilizer according to claim 8, characterized in that, A plurality of first through holes (6) and a plurality of second through holes (22) are provided together, and the plurality of first through holes (6) and a plurality of second through holes (22) are fixedly connected by a plurality of conveying pipes (7).

10. The mixing apparatus for producing calcium-zinc stabilizer according to claim 1, characterized in that, The mixing box (1) is fixedly provided with support legs at the four corners of the bottom. The mixing box (1) and the premixing box (2) are fixedly connected by the connecting mechanism (25) fixedly provided on both sides.

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