A mixer for preparing high tower compound fertilizer

Abstract

The present invention discloses a mixer for preparing high-tower compound fertilizer, comprising a main body, a stirring mechanism, a screening mechanism and a side pressure mechanism, the main body is provided with a feed pipe and a discharge pipe, a stirring chamber is provided inside the main body, the screening mechanism comprises a fixed plate, a sliding plate and a first driving mechanism, the fixed plate is connected in the stirring chamber, the sliding plate is connected below the fixed plate, the fixed plate and the sliding plate are provided with a first screening hole, the first driving mechanism is arranged in the stirring chamber and drives the sliding plate to translate repeatedly, the stirring mechanism comprises a main rotating shaft and a motor, the main rotating shaft is rotatably connected in the stirring chamber, the motor is mounted on the main body and drives the main rotating shaft to rotate, the main rotating shaft is provided with a first spiral blade, the side pressure mechanism is arranged on the side wall of the stirring chamber, and the side pressure mechanism performs secondary screening and compaction crushing on the material in the stirring chamber. Compared with the prior art, the present invention can screen and crush the raw materials of the high-tower compound fertilizer, and the materials can be mixed more fully.

Description

Technical Field

[0001] The invention relates to the technical field of high-tower compound fertilizer production, in particular to a mixer for preparing high-tower compound fertilizer. Background Art

[0002] High tower compound fertilizer is a compound fertilizer using advanced manufacturing technology, and its characteristics include uniform particles, uniform nutrient distribution, quick dissolution and high efficiency. High tower compound fertilizer is produced by high tower melt granulation technology, which melts urea, phosphorus, potassium and other raw materials at high temperature, and then sprays them down from the top of the high tower, and cools them into granules through natural wind. The production process of high tower compound fertilizer adopts high tower melt granulation technology. This technology melts urea, phosphorus, potassium and other raw materials at high temperature, and then sprays them down through the nozzle at the top of the high tower, and cools them into granules through natural wind during the falling process. This process makes the particles of high tower compound fertilizer uniform and smooth, with melting holes, not easy to agglomerate, and significantly improves the compressive strength.

[0003] When producing traditional high-tower compound fertilizers, the raw materials need to be mixed first. Since some raw materials easily absorb water and cause caking, the raw materials cannot be mixed evenly during mixing, resulting in poor consistency of the raw materials and the problem of raw material stratification, which in turn affects the production of crops. In view of this, the applicant conducted in-depth research on the above issues, resulting in this case. Summary of the invention

[0004] The main purpose of the present invention is to provide a mixer for preparing high-tower compound fertilizer, which can effectively solve the above technical problems.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A mixer for preparing high-tower compound fertilizer, comprising a main body, a stirring mechanism, a screening mechanism and a side pressure mechanism, wherein the main body is provided with a feed pipe and a discharge pipe, and a stirring chamber is provided inside the main body, the screening mechanism comprises a fixed plate, a sliding plate and a first driving mechanism, the fixed plate is fixedly connected in the stirring chamber, the sliding plate is slidably connected below the fixed plate, the fixed plate and the sliding plate are provided with a first screening hole, the first driving mechanism is arranged in the stirring chamber and drives the sliding plate to repeatedly translate relative to the fixed plate, the stirring mechanism comprises a main rotating shaft and a motor, the main rotating shaft is rotatably connected in the stirring chamber, the motor is mounted on the main body and drives the main rotating shaft to rotate, the main rotating shaft is provided with a first spiral blade, the side pressure mechanism is arranged on the side wall of the stirring chamber, and the side pressure mechanism performs secondary screening and compaction and crushing on the material in the stirring chamber.

[0007] Furthermore, the stirring mechanism also includes a conveying shaft, a feeding pipe, a main gear and a transmission gear. The feeding pipe is fixedly connected to the fixed plate, the upper opening of the feeding pipe is arranged above the fixed plate, the conveying shaft passes through the feeding pipe and is rotatably connected to the main body, the feeding pipe is provided with a second spiral blade, and the main body is provided with an installation cavity at the upper end of the stirring cavity, the main gear and the transmission gear are arranged in the installation cavity, the main gear is fixedly sleeved on the main shaft, the transmission gear is fixedly sleeved on the conveying shaft, and the main gear and the transmission gear are meshed and connected with each other.

[0008] Furthermore, the first driving mechanism includes a cam, a roller and a first spring, the cam is fixedly connected to the main shaft, a connecting seat is provided on the sliding plate, the roller is rotatably set on the connecting seat, the first spring is fixedly connected to the connecting seat, one end of the first spring is against the connecting seat and the other end is against the feeding tube.

[0009] Furthermore, a limiting frame is provided in the stirring chamber, the sliding plate is arranged to slide on the upper end of the limiting frame, a first clearance hole is provided in the middle of the sliding plate, and first sliding grooves that slide with the feeding pipe are provided on both sides of the sliding plate.

[0010] Furthermore, the sliding plate is provided with a guide groove, and the lower end of the fixed plate is provided with a guide block that slidably cooperates with the guide groove.

[0011] Furthermore, the side pressure mechanism includes a symmetrically arranged side pressure plate and a second driving mechanism, the side pressure plate extends in an arc direction, the side wall of the side pressure plate is provided with a second screening hole, the lower end of the side pressure plate is provided with an inclined guide plate, and the second driving mechanism drives the side pressure plate to translate along the radial direction.

[0012] Furthermore, the guide plate is provided with a second slide groove that slidably cooperates with the feeding tube.

[0013] Furthermore, the second driving mechanism includes a driving block, a driving plate, a driving rod and an adapter frame, the side pressure plate is provided with a second clearance hole, the adapter frame is fixedly connected to both sides of the second clearance hole, the driving block is fixedly mounted on the sliding plate, the driving plate is fixedly connected to the side wall of the stirring chamber and is arranged on both sides of the driving block, the driving block is provided with a first strip hole extending vertically, the driving plate is provided with a second strip hole arranged obliquely, the driving rod passes through the first strip hole and the second strip hole for sliding connection, and the adapter frame is fixedly connected to both ends of the driving rod.

[0014] Furthermore, the side pressure mechanism also includes a lower pressure plate, a connecting rod, a limit plate, a lifting block and a second spring, the lower pressure plate is arranged above the fixed plate, the connecting rod passes through the fixed plate for sliding connection, the upper end of the connecting rod is connected to the lower pressure plate and the lower end is connected to the lifting block, the limit plates are symmetrically connected to the inner wall of the stirring chamber, the lifting block is slidably connected between the limit plates, the second spring is fixedly connected to the lifting block, the upper end of the second spring abuts against the fixed plate and the lower end abuts against the lifting block, a wedge block is provided on the side wall of the driving block, the wedge block is provided with a first inclined surface, and the side wall of the lifting block is provided with a second inclined surface that slides with the first inclined surface.

[0015] Furthermore, a third clearance hole is provided in the middle of the lower pressing plate, and a fourth clearance hole is provided on the side of the third clearance hole.

[0016] After adopting the above structure, when the raw materials of the present invention enter the stirring chamber, the materials are repeatedly squeezed up and down by the lower pressure plate, and the large-volume materials of the agglomerates are initially crushed. Then the materials pass through the fixed plate. Due to the repeated movement of the sliding plate, the long strips of materials are sheared into small-volume particles when passing through the fixed plate and the sliding plate. At the same time, when the side pressure plate moves, the large-volume materials on the outer side of the stirring chamber can be squeezed and crushed, and the small-volume materials can enter the stirring chamber through the second screening hole, so that the materials in the stirring chamber can be fully crushed and evenly stirred. After that, the materials are stirred by the first spiral blade, and the materials at the bottom are transported to the top of the fixed plate along the feeding pipe by the second spiral blade, and the above screening and crushing steps are repeated. Finally, the fully mixed and stirred materials are discharged from the discharge pipe at the lower end.

[0017] Compared with the prior art, the invention has the beneficial effect that the raw materials of the high-tower compound fertilizer can be screened and crushed, the materials can be mixed more fully, the compound fertilizer raw materials can be prevented from agglomerating, and the materials have better fluidity. At the same time, the roundness and size controllability of the fertilizer granulated particles are improved, and the probability of clogging of the device is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the appearance structure of the present invention.

[0019] Figure 2 It is a side view of the cross-sectional structure of the main body.

[0020] Figure 3 Another cross-sectional structural side view of the main body.

[0021] Figure 4 It is a three-dimensional diagram of the cross-sectional structure of the main body.

[0022] Figure 5 This is a cross-sectional view of the internal structure of the main body.

[0023] Figure 6 Schematic diagram of the internal structure of the main body.

[0024] Figure 7 for Figure 2 A partial enlarged view of area A.

[0025] Figure 8 Another cross-sectional view of the internal structure of the main body.

[0026] In the figure: main body 1, feed pipe 11, discharge pipe 12, stirring chamber 13, limit frame 131, installation chamber 14, fixed plate 21, first screening hole 211, guide block 212, sliding plate 22, first clearance hole 221, first slide groove 222, guide groove 223, cam 23, roller 24, first spring 25, connecting seat 26, main shaft 31, motor 32, first spiral blade 33, conveying shaft 34, feeding pipe 35, main gear 36 , transmission gear 37, second spiral blade 38, side pressure plate 41, second screening hole 411, second make way hole 412, guide plate 42, second slide groove 421, drive block 43, first strip hole 431, drive plate 44, second strip hole 441, drive rod 45, adapter frame 46, lower pressure plate 51, third make way hole 511, fourth make way hole 512, connecting rod 52, limit plate 53, lifting block 54, second spring 55, wedge block 56. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0028] like Figure 1-8 As shown, a mixer for preparing high-tower compound fertilizer includes a main body 1, a stirring mechanism, a screening mechanism and a side pressure mechanism. The main body 1 is a cylindrical structure. The upper and lower ends of the main body 1 are provided with a feed pipe 11 and a discharge pipe 12. A stirring chamber 13 is provided inside the main body 1. The lower end of the feed pipe 11 extends into the stirring chamber. The screening mechanism includes a fixed plate 21, a sliding plate 22 and a first driving mechanism. The fixed plate 21 is fixedly arranged at the upper end of the stirring chamber 13. The sliding plate 22 is slidably connected to the lower side of the fixed plate 21. The fixed plate 21 and the sliding plate 22 are connected to the lower side of the fixed plate 21. The plate 22 is provided with a first screening hole 211, the first driving mechanism is provided in the stirring chamber 13 and drives the sliding plate 22 to repeatedly translate relative to the fixed plate 21, the stirring mechanism includes a main rotating shaft 31 and a motor 32, the main rotating shaft 31 is rotatably connected in the stirring chamber 13 through a bearing, the motor 32 is installed on the main body 1 and drives the main rotating shaft 31 to rotate, the main rotating shaft 31 is provided with a first spiral blade 33, the motor 32 drives the main rotating shaft 31 to rotate, the material is stirred by the first spiral blade 33, and the material is transported to the lower end of the stirring chamber 13. The side pressure mechanism is provided on the side wall of the stirring chamber 13, and the side pressure mechanism performs secondary screening and compaction and crushing on the material in the stirring chamber 13.

[0029] In this embodiment, the stirring mechanism also includes a conveying shaft 34, a feeding pipe 35, a main gear 36 and a transmission gear 37. The feeding pipe 35 is symmetrically arranged on both sides of the main shaft 31. The feeding pipe 35 is fixedly connected to the fixed plate 21. The upper opening of the feeding pipe 35 is arranged above the fixed plate 21. The conveying shaft 34 passes through the feeding pipe 35 and is rotatably connected to the main body 1. The feeding pipe 35 is provided with a second spiral blade 38. The main body 1 is provided with a mounting chamber 14 at the upper end of the stirring chamber 13. The main gear 36 and the transmission gear 37 are arranged on the mounting chamber 14. In the loading cavity 14, the main gear 36 is fixedly sleeved on the main rotating shaft 31, and the transmission gear 37 is fixedly sleeved on the conveying rotating shaft 34. The main gear 36 and the transmission gear 37 are meshed and connected with each other. With the above structure, the motor 32 drives the main rotating shaft 31 and the main gear 36 to rotate, and the transmission gear 37 is transmitted through the main gear 36 to drive the conveying rotating shaft 34 to rotate. During the rotation of the conveying rotating shaft 34, the second spiral blade is driven to rotate, and the material is conveyed upward along the feeding pipe 35 to the top of the fixed plate 21 through the second spiral blade 38.

[0030] In this embodiment, the first driving mechanism includes a cam 23, a roller 24 and a first spring 25. The cam 23 is fixedly connected to the main shaft 31. The sliding plate 22 is provided with a connecting seat 26. The roller 24 is rotatably arranged on the connecting seat 26. The first spring 25 is fixedly connected to the connecting seat 26. One end of the first spring 25 abuts against the connecting seat 26 and the other end abuts against the feeding tube 35. After adopting the above structure, the main shaft 31 drives the cam 23 to rotate while rotating. The cam 23 intermittently rolls with the rollers 24 on both sides. The rollers 24 move outward after being abutted by the cam 23, and then push the sliding plate 22 to translate. When the cam 23 is separated from the roller 24, the sliding plate 22 is pushed to reset under the elastic force of the first spring 25, so that the sliding plate 22 can be driven to perform repeated horizontal movements.

[0031] More specifically, the inner wall of the stirring chamber 13 is provided with a limit frame 131, which is arranged on the side of the translation direction of the sliding plate 22, and the sliding plate 22 is arranged to slide on the upper end of the limit frame 131, and the limit frame 131 supports the sliding plate 22, and the middle part of the sliding plate 22 is provided with a first clearance hole 221, and the first clearance hole 221 is used for the translation of the sliding plate 22 to make way, and the two sides of the sliding plate 22 are provided with a first slide groove 222 that slidably cooperates with the feeding pipe 35, and the first slide groove 222 can provide a limit when the sliding plate 22 is sliding. In addition, a guide groove 223 is provided on the sliding plate 22, and a guide block 212 that slidably cooperates with the guide groove 223 is provided at the lower end of the fixed plate 21, and the guide block 212 can guide the sliding plate 22 when it slides, further improving the stability of the translation of the sliding plate 22.

[0032] In this embodiment, the side pressure mechanism includes a symmetrically arranged side pressure plate 41 and a second driving mechanism. The side pressure plate 41 extends in an arc direction. The side pressure plate 41 is coaxially arranged with the stirring chamber 13. The side wall of the side pressure plate 41 is provided with a second screening hole 411. The lower end of the side pressure plate 41 is provided with an inclined guide plate 42. The guide plate 42 can guide the material outside the stirring chamber 13 to the middle of the lower end of the stirring chamber 13, so that the material can be better gathered at the bottom of the stirring chamber 13. The guide plate 42 is provided with a second slide groove 421 that slides with the feeding pipe 35. The second slide groove 421 can guide and limit the translation of the side pressure plate 41. The second driving mechanism drives the side pressure plate 41 to translate in the radial direction. Specifically, the second driving mechanism includes a driving block 43, a driving plate 44, a driving rod 45 and an adapter frame 46. A second clearance hole 412 is provided on the side pressure plate 41. The adapter frame 46 is fixedly connected to both sides of the second clearance hole 412. The driving block 43 is fixedly installed on the sliding plate 22. The driving plate 44 is fixedly connected to the side wall of the stirring chamber 13 and is arranged on both sides of the driving block 43. A first strip hole 431 extending vertically is provided on the driving block 43. A second strip hole 441 is obliquely provided on the driving plate 44. The second strip hole 441 is gradually inclined from downward to outward. The driving rod 45 passes through the first strip hole 431 and the second strip hole 441 for sliding connection. The adapter frame 46 is fixedly connected to both ends of the driving rod 45. After adopting the above structure, when the sliding plate 22 moves outward, it drives the driving block 43 to move toward the driving plate 44. The driving block 43 moves outward and drives the driving rod 45 to slide along the first strip hole 431 and the second strip hole 441, so that the driving rod 45 gradually slides outward and downward, thereby driving the side pressure plate 41 to move outward and downward. During the movement of the side pressure plate 41, large-volume materials are compressed and crushed, while small-volume materials pass through the second screening hole 411 and enter the stirring chamber 13.

[0033] In this embodiment, the side pressure mechanism further includes a lower pressure plate 51, a connecting rod 52, a limiting plate 53, a lifting block 54 and a second spring 55. The lower pressure plate 51 is symmetrically arranged above the fixed plate 21. The connecting rod 52 passes through the fixed plate 21 for sliding connection. The upper end of the connecting rod 52 is connected to the lower pressure plate 51 and the lower end is connected to the lifting block 54. The limiting plates 53 are symmetrically connected to the inner side wall of the stirring chamber 13. The lifting block 54 is slidably connected between the limiting plates 53. The limiting plates 53 guide and limit the lifting of the lifting block 54. The second spring 55 is fixedly connected to the lifting block 54. The upper end of the second spring 55 abuts against the fixed plate 21 and the lower end abuts against the lifting block 54. A wedge block 56 is provided on the side wall of the driving block 43. The wedge block 56 is provided with a first inclined surface. The first inclined surface gradually inclines from top to bottom toward the outside. The side wall of the lifting block 54 is provided with a second inclined surface that slides with the first inclined surface. More specifically, a third clearance hole 511 is provided in the middle of the lower pressing plate 51, and the third clearance hole 511 provides clearance for the main shaft 31 and facilitates the material to fall onto the fixed plate 21. The lower pressing plate 51 is provided with a fourth clearance hole 512 on the side of the third clearance hole 511, and the fourth clearance hole 512 provides clearance for the conveying shaft 34. At the same time, a plurality of guide rods that slide with the lower pressing plate 51 can also be provided on the fixed plate 21 to facilitate the guidance of the lower pressing plate 51. After adopting the above structure, when the sliding plate 22 slides outward, the wedge block 56 is driven to move outward together. When the wedge block 56 moves, it cooperates with the lifting block 54 to push the lifting block 54 upward. When the lifting block 54 rises, the lower pressing plate 51 is driven to rise through the connecting rod 52. After that, the sliding plate 22 is reset, and the lifting block 54 is driven to reset under the elastic force of the second spring 55. When the lifting block 54 moves downward and resets, it can press the material and further crush the material.

[0034] After adopting the above structure, when the raw materials of the present invention enter the stirring chamber 13, the lower pressure plate 51 repeatedly squeezes the materials up and down, and the large-volume materials of the agglomerates are initially crushed. Then the materials pass through the fixed plate 21. Due to the repeated movement of the sliding plate 22, the long strips of materials are sheared into small-volume particles when passing through the fixed plate 21 and the sliding plate 22. At the same time, when the side pressure plate 41 moves, the large-volume materials on the outer side of the stirring chamber 13 can be squeezed and crushed, and the small-volume materials can enter the stirring chamber 13 through the second screening hole 411, so that the materials in the stirring chamber 13 can be fully crushed and evenly stirred. After that, the materials are stirred by the first spiral blade 33, and the materials at the bottom are transported to the top of the fixed plate 21 through the second spiral blade 38 along the feeding pipe 35, and the above screening and crushing steps are repeated. Finally, the fully mixed and stirred materials are discharged from the discharge pipe 12 at the lower end.

[0035] Compared with the prior art, the invention has the beneficial effect that the raw materials of the high-tower compound fertilizer can be screened and crushed, the materials can be mixed more fully, the compound fertilizer raw materials can be prevented from agglomerating, and the materials have better fluidity. At the same time, the roundness and size controllability of the fertilizer granulated particles are improved, and the probability of clogging of the device is greatly reduced.

[0036] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A mixer for preparing high tower compound fertilizer, characterized in that: It includes a main body, a stirring mechanism, a screening mechanism and a side pressure mechanism. The main body is provided with a feed pipe and a discharge pipe, and a stirring chamber is provided inside the main body. The screening mechanism includes a fixed plate, a sliding plate and a first driving mechanism. The fixed plate is fixedly connected in the stirring chamber, and the sliding plate is slidably connected under the fixed plate. The fixed plate and the sliding plate are provided with a first screening hole. The first driving mechanism is arranged in the stirring chamber and drives the sliding plate to repeatedly translate relative to the fixed plate. The stirring mechanism includes a main rotating shaft and a motor. The main rotating shaft is rotatably connected in the stirring chamber. The motor is installed on the main body and drives the main rotating shaft to rotate. The main rotating shaft is provided with a first spiral blade. The side pressure mechanism is arranged on the side wall of the stirring chamber, and the side pressure mechanism performs secondary screening and compaction and crushing on the material in the stirring chamber.

2. A mixer for preparing high tower compound fertilizer according to claim 1, characterized in that: The stirring mechanism also includes a conveying shaft, a feeding pipe, a main gear and a transmission gear. The feeding pipe is fixedly connected to the fixed plate, and the upper opening of the feeding pipe is arranged above the fixed plate. The conveying shaft passes through the feeding pipe and is rotatably connected to the main body. The feeding pipe is provided with a second spiral blade. The main body is provided with an installation cavity at the upper end of the stirring cavity. The main gear and the transmission gear are arranged in the installation cavity. The main gear is fixedly sleeved on the main shaft, and the transmission gear is fixedly sleeved on the conveying shaft. The main gear and the transmission gear are meshed and connected with each other.

3. A mixer for preparing high tower compound fertilizer as claimed in claim 2, characterized in that: The first driving mechanism includes a cam, a roller and a first spring. The cam is fixedly connected to the main shaft. A connecting seat is provided on the sliding plate. The roller is rotatably arranged on the connecting seat. The first spring is fixedly connected to the connecting seat. One end of the first spring abuts against the connecting seat and the other end abuts against the feeding tube.

4. A mixer for preparing high tower compound fertilizer as claimed in claim 3, characterized in that: A limiting frame is arranged in the stirring chamber, the sliding plate is arranged on the upper end of the limiting frame to slide, a first clearance hole is arranged in the middle of the sliding plate, and first sliding grooves that slide with the feeding pipe are arranged on both sides of the sliding plate.

5. A mixer for preparing high tower compound fertilizer as claimed in claim 4, characterized in that: The sliding plate is provided with a guide groove, and the lower end of the fixed plate is provided with a guide block which is slidably matched with the guide groove.

6. A mixer for preparing high tower compound fertilizer as claimed in claim 2, characterized in that: The side pressure mechanism includes a symmetrically arranged side pressure plate and a second driving mechanism. The side pressure plate extends in an arc direction. The side wall of the side pressure plate is provided with a second screening hole. The lower end of the side pressure plate is provided with an inclined guide plate. The second driving mechanism drives the side pressure plate to translate in a radial direction.

7. A mixer for preparing high tower compound fertilizer as claimed in claim 6, characterized in that: The guide plate is provided with a second sliding groove which is slidably matched with the feeding pipe.

8. A mixer for preparing high tower compound fertilizer as claimed in claim 6, characterized in that: The second driving mechanism includes a driving block, a driving plate, a driving rod and an adapter frame. The side pressure plate is provided with a second clearance hole, and the adapter frame is fixedly connected to both sides of the second clearance hole. The driving block is fixedly installed on the sliding plate, and the driving plate is fixedly connected to the side wall of the stirring chamber and is arranged on both sides of the driving block. A first strip hole extending vertically is provided on the driving block, and a second strip hole arranged obliquely is provided on the driving plate. The driving rod passes through the first strip hole and the second strip hole for sliding connection, and the adapter frame is fixedly connected to both ends of the driving rod.

9. A mixer for preparing high tower compound fertilizer as claimed in claim 8, characterized in that: The side pressure mechanism also includes a lower pressure plate, a connecting rod, a limit plate, a lifting block and a second spring. The lower pressure plate is arranged above the fixed plate, the connecting rod passes through the fixed plate for sliding connection, the upper end of the connecting rod is connected to the lower pressure plate and the lower end is connected to the lifting block, the limit plate is symmetrically connected to the inner wall of the stirring chamber, the lifting block is slidably connected between the limit plates, the second spring is fixedly connected to the lifting block, the upper end of the second spring abuts against the fixed plate and the lower end abuts against the lifting block, a wedge block is provided on the side wall of the driving block, the wedge block is provided with a first inclined surface, and the side wall of the lifting block is provided with a second inclined surface that slidably cooperates with the first inclined surface.

10. A mixer for preparing high tower compound fertilizer according to claim 9, characterized in that: A third easing hole is arranged in the middle of the lower pressing plate, and a fourth easing hole is arranged on the side of the third easing hole.

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