A crushing mechanism and a rake-type dryer having the same

Abstract

The present invention discloses a crushing mechanism and a rake-type dryer having the crushing mechanism, and relates to the field of crushing mechanisms and rake-type dryers having the crushing mechanism. The crushing mechanism comprises an inner cylinder, a rotating rod capable of rotation is provided in the inner cylinder, a plurality of toggle assemblies are provided along the axis of the rotating rod, the toggle assemblies comprise a plurality of toggle units, the plurality of toggle units are arranged in a circumferential manner, a crushing assembly is provided on the inner cylinder corresponding to the toggle resistance assembly; the crushing assembly comprises a crushing shell and crushing blades. The particles of the material pushed into the crushing shell by the toggle rake are larger, and the material with smaller particles is prevented from entering the crushing shell and affecting the crushing efficiency, thereby improving the crushing efficiency, and preventing the material with smaller particles from being further crushed, thereby making the size of the crushed particles uneven and affecting the crushing effect. An external heat source heats the inner cylinder and the material in the inner cylinder to dry the material, and the large-particle material is crushed in cooperation with the crushing assembly, so that the particle size of the dried material is more uniform, the drying efficiency is higher, and the drying effect is better.

Description

Technical Field

[0001] The present invention relates to the field of a crushing mechanism and a rake-type dryer having the crushing mechanism, and in particular to a crushing mechanism and a rake-type dryer having the crushing mechanism. Background Art

[0002] A pulverizer is a device used to crush materials into smaller particles and is widely used in industries such as mining, building materials, chemicals, and pharmaceuticals. According to the search results, the design and working principles of pulverizers can be very complex, involving multiple fields such as mechanical design, materials science, and powder metallurgy.

[0003] The working principle of a rake dryer is to use rotating rake arms to flip and throw the material, ensuring uniform heating and drying. Specifically, the material to be dried is added from the center of the upper shell. The material is stirred by the continuously rotating rake teeth, which cause it to move back and forth axially. The surface contacting the inner wall of the shell is constantly renewed. The indirect heating of the steam, the uniform stirring of the rake teeth, and the crushing of the grinding rods facilitate the removal of moisture from the material surface. The vaporized moisture passes through a dry dust collector, a wet dust collector, and a condenser, and is discharged from the vacuum pump outlet.

[0004] Chinese patent application CN108837883A discloses a crushing mechanism, including a crushing mechanism outer shell, a crushing screen assembly, a crushing fixed hammer assembly, a crushing rotating hammer assembly, a side of the outer shell, and a crushing rotating driving component; wherein, the crushing rotating driving component is fixed to the side of the crushing mechanism outer shell, a crushing cavity is formed inside the outer shell of the crushing mechanism, the crushing fixed hammer assembly is fixed in the crushing cavity inside the outer shell of the crushing mechanism by bolts, the crushing rotating hammer assembly is connected and fixed to the crushing rotating driving component by nuts, and the crushing rotating hammer assembly has a rotating disc and multiple groups of crushing rotating hammers; a connecting circular hole is opened in the middle of the rotating disc, and multiple groups of crushing rotating hammers are respectively fixed around the rotating disc. The improved structure is simple, easy to manufacture, and has good crushing effect, easy and convenient material discharge, and low power consumption.

[0005] The above patent application and prior art also have the following defects:

[0006] Some granular materials in the prior art have different particle sizes during drying, resulting in uneven drying and poor drying effect. A crushing mechanism is needed to crush the granular materials. However, the crushing mechanism in the prior art crushes the granular materials uniformly, which easily causes small particles to be further crushed, and the problem of different particle sizes still exists. Moreover, the crushing device in the prior art cannot be installed in the drying equipment, especially the rake dryer, because it will block the rotation of the rake arm. The crushing and drying need to be processed separately, which is more troublesome and reduces efficiency.

[0007] Therefore, the present application provides a crushing mechanism and a rake dryer having the crushing mechanism to meet the demand. Summary of the Invention

[0008] The purpose of the present application is to provide a crushing mechanism and a rake-type dryer with the crushing mechanism, so that the particles of the material pushed into the crushing shell by the rake are larger, and the smaller particles of the material are prevented from entering the crushing shell and affecting the crushing efficiency, so that the crushing efficiency is higher, and the smaller particles of the material are prevented from being further crushed, so that the size of the crushed particles is uneven, which affects the crushing effect. The external heat source heats the inner cylinder and the material in the inner cylinder to dry the material, and cooperates with the crushing component to crush the large particles of the material, so that the particle size of the dried material is more uniform, the drying efficiency is higher, and the drying effect is better.

[0009] To achieve the above-mentioned object, the present application provides the following technical solution: a crushing mechanism, comprising an inner cylinder, wherein a rotatable rotating rod is provided in the inner cylinder, wherein the rotating rod is provided with a plurality of toggle assemblies along an axis thereof, wherein the toggle assemblies include a plurality of toggle units, wherein the plurality of toggle units are arranged in a circumferential manner, and a crushing assembly is provided on the inner cylinder corresponding to the toggle resistance assembly;

[0010] The pulverizing assembly includes a pulverizing shell and pulverizing blades, the top and bottom of the pulverizing shell are both opened, and the pulverizing blades are arranged in the pulverizing shell and can rotate in the pulverizing shell;

[0011] The toggling unit includes a toggling rake, a fixed rod, an extrusion block, a clamping block, a reset spring and a reset torsion spring, wherein the fixed rod is fixedly mounted on the rotating rod, the toggling rake is rotatably mounted on the fixed rod, the other end of the toggling rake abuts against the inner cylinder, the clamping block is fixedly mounted on the side wall of the toggling rake, and the extrusion block is provided with a clamping groove corresponding to the position of the clamping block;

[0012] The return spring can press the block into the slot through the extrusion block. When the extrusion block rotates to the position of the crushing shell, the crushing shell can push the extrusion block to move, and the extrusion block causes the block to disengage from the slot. After the block disengages from the slot, the toggle rake moves to the position of the crushing shell and is pushed by the crushing shell to rotate on the fixed rod. The return torsion spring stores force. When the toggle rake moves to disengage from the crushing shell, the return torsion spring drives the toggle rake to rotate and reset, and the toggle rake drives the block to rotate into the slot.

[0013] Preferably, the toggle unit also includes a fixing frame, a fixing shell and a limiting rod, the fixing frame is fixedly mounted on the fixing rod, the fixing shell is fixedly mounted on the fixing frame, the limiting rod is fixedly mounted on a side of the extrusion block close to the fixed shell, the limiting rod passes through the fixed shell and slides with the fixed shell, an end of the limiting rod away from the extrusion block is fixedly mounted with an anti-falling block, one end of the reset spring is fixedly mounted on the extrusion block, the other end of the reset spring is fixedly mounted on the fixed shell, the reset spring is sleeved on the limiting rod, and both sides of the extrusion block are inclined.

[0014] Preferably, the inner cylinder is further provided with a translation assembly and a driving assembly, a crushing hole is opened on the side wall of the inner cylinder corresponding to the position of the crushing shell, the crushing shell slides in the crushing hole, the translation assembly includes a translation block, a translation rod and a translation hydraulic rod, the crushing shells in several crushing assemblies are fixedly mounted on the translation rod, the output end of the translation hydraulic rod is fixedly mounted on the translation block, the translation rod is fixedly mounted on the translation block, and the end of the crushing shell away from the rotating rod is arc-shaped.

[0015] Preferably, the crushing assembly further includes a rotating shaft and a driving belt member, the rotating shaft being rotatably connected within the crushing shell, one end of the rotating shaft passing through the crushing shell and extending outward, the crushing blade being fixedly mounted on the rotating shaft, the driving belt member including a driving active pulley, a driving passive pulley and a driving belt, the driving assembly being capable of driving the driving active pulleys in all crushing assemblies to rotate, the driving passive pulley being fixedly mounted on the rotating shaft, and the driving belt being connected to the driving active pulley and the driving passive pulley.

[0016] Preferably, the driving assembly includes a driving motor and a driving shaft, the driving motor is fixedly mounted on the translation block, the driving shaft is fixedly mounted on the output end of the driving motor, the driving shaft passes through the translation block and is rotatably connected to the translation block, and the driving active pulleys in all the crushing assemblies are fixedly mounted on the driving shaft.

[0017] Preferably, fixed side plates are fixedly installed on both sides of the inner cylinder, an outer cylinder is fixedly installed on the fixed side plates, the outer cylinder is sleeved on the inner cylinder, the top of the inner cylinder is fixedly connected with a feed pipe, the feed pipe passes through the outer cylinder and extends outward, the bottom of the inner cylinder is fixedly connected with a discharge pipe, the discharge pipe passes through the outer cylinder and extends outward, a heat source inlet pipe is fixedly connected to the side wall of the outer cylinder, and a heat source outlet pipe is fixedly connected to the other side wall of the outer cylinder.

[0018] Preferably, a support frame is provided below the inner cylinder, a support plate is fixedly mounted on the support frame, the outer cylinder is fixedly mounted on the support plate, and both ends of the rotating rod respectively pass through the corresponding fixed side plates and are rotatably connected to the support frame.

[0019] Preferably, a rotating motor is fixedly mounted on the support frame, a driving transmission pulley is fixedly mounted on the output end of the rotating motor, a driven transmission pulley is fixedly mounted on the rotating rod, and a transmission belt is connected to the driving transmission pulley and the driven transmission pulley.

[0020] Preferably, the translation hydraulic rod is fixedly mounted on the fixed side plate, a translation hole is opened on the fixed side plate corresponding to the position of the translation block, the translation block passes through the translation hole, a closing plate is fixedly mounted on the translation block, the closing plate corresponds to the translation hole, two partitions are fixedly mounted between the inner cylinder and the outer cylinder, both ends of the partition are fixedly mounted on the corresponding fixed side plates, and the crushing assembly is arranged between the two partitions.

[0021] A rake-type dryer uses the above-mentioned pulverizing mechanism.

[0022] In summary, the technical effects and advantages of the present invention are:

[0023] The material in the inner cylinder is centrifuged by the rotation of the toggle rake, and the material is pushed into the crushing shell and crushed by the crushing blades.

[0024] 2. In the present invention, the translation hydraulic rod drives the translation block to move, the translation block drives the translation rod to move, the translation rod drives the crushing shell to move, and the crushing shell drives the crushing blades to move, so that the crushing shell can be translated on the inner cylinder, thereby adjusting the length of the crushing shell extending into the inner cylinder, thereby adjusting the particle size of the material entering. For example, if the content of large particles in the material is high, the thickness of the large particles located on the outer ring of the inner cylinder after centrifugation is greater. At this time, the length of the crushing shell extending into the inner cylinder can be made longer, so that all the large particles located on the outer ring of the inner cylinder can enter the crushing shell for crushing, thereby improving the crushing efficiency;

[0025] 3. In the present invention, the material enters the inner cylinder through the feed pipe, and the external heat source enters between the outer cylinder and the inner cylinder through the heat source inlet pipe. The external heat source heats the inner cylinder and the material in the inner cylinder to dry the material, and cooperates with the crushing component to crush the large particles of material. The particle size of the dried material is more uniform, the drying efficiency is higher, and the drying effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of the outer cylinder, feed pipe, fixed side plate, heat source feed pipe and support frame in the present invention;

[0028] Figure 2 This is a schematic structural diagram of the outer cylinder, discharge pipe, heat source discharge pipe, rotating motor and rotating rod in the present invention;

[0029] Figure 3 This is a schematic structural diagram of the inner cylinder, outer cylinder, toggle unit and crushing assembly in the present invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged view of part A;

[0031] Figure 5 Schematic diagram of the structure of the outer cylinder, the rotating rod and the toggle unit in the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of part B;

[0033] Figure 7 Schematic diagram of the structure of the toggle unit and the crushing assembly in the present invention;

[0034] Figure 8Schematic diagram of the structure of the inner cylinder, outer cylinder and rotating rod in the present invention;

[0035] Figure 9 For the present invention Figure 8 Enlarged view of part C;

[0036] Figure 10 Schematic diagram of the structure of the inner cylinder, outer cylinder and fixed rod in the present invention;

[0037] Figure 11 For the present invention Figure 10 Magnified view of part D.

[0038] In the figure: 1. Inner cylinder; 2. Rotating rod; 3. Steering unit; 31. Steering rake; 32. Fixed rod; 33. Extrusion block; 34. Block; 35. Return spring; 36. Return torsion spring; 37. Fixed frame; 38. Fixed shell; 39. Limiting rod; 4. Crushing assembly; 41. Crushing shell; 42. Crushing blade; 44. Rotating shaft; 45. Driving belt; 5. Translation assembly; 51. Translation block; 52. Translation rod; 53. Translation hydraulic rod; 6. Driving assembly; 61. Driving motor; 62. Driving shaft; 7. Fixed side plate; 8. Outer cylinder; 9. Feed pipe; 10. Discharge pipe; 11. Heat source inlet pipe; 12. Heat source outlet pipe; 13. Support frame; 14. Rotating motor; 15. Partition. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0040] Example: Reference Figures 1-11 The pulverizing mechanism shown in the figure comprises an inner cylinder 1, a rotating rod 2 being provided in the inner cylinder 1 and a plurality of toggle assemblies being provided along the axis of the toggle assemblies. The toggle assemblies comprise a plurality of toggle units 3 arranged in a circle. A pulverizing assembly 4 is provided on the inner cylinder 1 corresponding to the toggle resistance assembly.

[0041] The crushing assembly 4 includes a crushing shell 41 and crushing blades 42. The top and bottom of the crushing shell 41 are both opened. The crushing blades 42 are arranged in the crushing shell 41 and can rotate in the crushing shell 41.

[0042] The toggling unit 3 includes a toggling rake 31, a fixed rod 32, an extrusion block 33, a clamping block 34, a return spring 35 and a return torsion spring 36. The fixed rod 32 is fixedly mounted on the rotating rod 2, and the toggling rake 31 is rotatably mounted on the fixed rod 32. The other end of the toggling rake 31 abuts against the inner cylinder 1. The clamping block 34 is fixedly mounted on the side wall of the toggling rake 31. The extrusion block 33 has a clamping groove corresponding to the position of the clamping block 34.

[0043] The return spring 35 can press the block 34 into the slot through the extrusion block 33. When the extrusion block 33 rotates to the position of the pulverizing shell 41, the pulverizing shell 41 can push the extrusion block 33 to move, and the extrusion block 33 causes the block 34 to disengage from the slot. After the block 34 disengages from the slot, the toggling rake 31 moves to the position of the pulverizing shell 41 and is pushed by the pulverizing shell 41 to rotate on the fixed rod 32. The return torsion spring 36 stores force. When the toggling rake 31 moves to disengage from the pulverizing shell 41, the return torsion spring 36 drives the toggling rake 31 to rotate and reset, and the toggling rake 31 drives the block 34 to rotate into the slot.

[0044] The material is placed in the inner cylinder 1, the rotating rod 2 rotates, the rotating rod 2 drives the toggle unit 3 to rotate, the toggle unit 3 drives the fixed rod 32 to rotate, the clamping block 34 is located in the clamping groove, the extrusion block 33 fixes the toggle rake 31, the toggle rake 31 drives the material in the inner cylinder 1 to rotate, and the material is centrifuged under the action of the rotation. The larger material is located at the outer position of the inner cylinder 1, and the smaller material is located at the inner position of the inner cylinder 1. The rotation of the toggle rake 31 pushes the larger material into the grinding shell 41, and the rotating grinding blades 42 in the grinding shell 41 crush the particles. The crushed material passes through the grinding shell 41 The opening at the bottom enters the inner cylinder 1 again. During the rotation of the toggle unit 3, the extrusion block 33 first contacts the pulverizing shell 41. The pulverizing shell 41 pushes the extrusion block 33 to move and compresses the return spring 35, so that the block 34 is out of the slot. Then the toggle rake 31 contacts the pulverizing shell 41. The toggle rake 31 rotates on the fixed rod 32. The toggle rake 31 drives the return torsion spring 36 to compress and avoid the pulverizing shell 41. When the toggle rake 31 moves and disengages from the pulverizing shell 41, the return torsion spring 36 drives the toggle rake 31 to reset, the block 34 moves into the slot, and the extrusion block 33 limits the toggle rake 31.

[0045] By arranging a crushing shell 41 and crushing blades 42 on the inner wall of the inner cylinder 1, when the rake 31 drives the material in the inner cylinder 1 to rotate, the material is pushed into the crushing shell 41 and crushed by the crushing blades 42. Since the crushing shell 41 and the crushing blades 42 are arranged on the inner wall of the inner cylinder 1 near the outer ring, the rake 31 rotates to centrifuge the material in the inner cylinder 1. The larger the particles of the material, the closer they are to the outer ring of the inner cylinder 1, so that the particles of the material pushed into the crushing shell 41 by the rake 31 are larger, and the smaller particles of the material are prevented from entering the crushing shell 41 and affecting the crushing efficiency, thereby making the crushing efficiency higher. It can also prevent materials with smaller particles from being further crushed, making the size of the crushed particles uneven and affecting the crushing effect. The toggling rake 31 rotates to counteract the inner cylinder 1, and the toggling rake 31 has a better pushing effect on the material, and can have a better pushing effect on the material centrifuged and located in the outer ring of the inner cylinder 1. When the toggling rake 31 rotates to the position of the crushing shell 41, the limit can be released to avoid the crushing shell 41, preventing the toggling rake 31 from colliding with the crushing shell 41 and causing damage and jamming. After the toggling rake 31 moves out of the crushing shell 41, the toggling rake 31 is reset and limited, so that the toggling rake 31 can push the material.

[0046] Further, refer to Figures 1-11 The toggle unit 3 also includes a fixing frame 37, a fixing shell 38 and a limiting rod 39. The fixing frame 37 is fixedly mounted on the fixing rod 32, the fixing shell 38 is fixedly mounted on the fixing frame 37, the limiting rod 39 is fixedly mounted on the side of the extrusion block 33 close to the fixing shell 38, the limiting rod 39 passes through the fixing shell 38 and slides with the fixing shell 38, and an end of the limiting rod 39 away from the extrusion block 33 is fixedly mounted with an anti-slip block, one end of the return spring 35 is fixedly mounted on the extrusion block 33, and the other end of the return spring 35 is fixedly mounted on the fixing shell 38. The return spring 35 is sleeved on the limiting rod 39, and the two sides of the extrusion block 33 are inclined.

[0047] The fixing rod 32 drives the fixing frame 37 to rotate, and the fixing frame 37 drives the fixing shell 38 and the toggling rake 31 to rotate around the rotating rod 2. When the extrusion block 33 abuts against the pulverizing shell 41, the extrusion block 33 moves away from the block 34 under the action of the inclined side, so that the block 34 is out of the slot, and the toggling rake 31 can rotate on the fixing frame 37. The extrusion block 33 abuts against the side wall of the pulverizing shell 41 and moves on the side wall of the pulverizing shell 41. As the rotation occurs, the toggling rake 31 contacts and Under the action of the pulverizing shell 41, it rotates on the fixing frame 37 and compresses the return torsion spring 36. When the toggling rake 31 rotates to separate from the pulverizing shell 41, the return torsion spring 36 drives the toggling rake 31 to return to the fixing frame 37 and rotate. The block 34 on the toggling rake 31 first contacts the oblique edge of the extrusion block 33 and pushes the extrusion block 33 to move, so that the toggling rake 31 drives the block 34 to move into the slot. The return spring 35 presses the extrusion block 33 so that the block 34 is located in the slot, limiting the toggling rake 31.

[0048] One end of the return torsion spring 36 is fixed on the toggling rake 31 , and the other end of the return torsion spring 36 is fixedly mounted on the fixing frame 37 .

[0049] Further, refer to Figures 1-11 The inner cylinder 1 is also provided with a translation assembly 5 and a driving assembly 6. A crushing hole is opened on the side wall of the inner cylinder 1 corresponding to the position of the crushing shell 41. The crushing shell 41 slides in the crushing hole. The translation assembly 5 includes a translation block 51, a translation rod 52 and a translation hydraulic rod 53. The crushing shells 41 in several crushing assemblies 4 are all fixedly mounted on the translation rod 52. The output end of the translation hydraulic rod 53 is fixedly mounted on the translation block 51, and the translation rod 52 is fixedly mounted on the translation block 51. The end of the crushing shell 41 away from the rotating rod 2 is arc-shaped.

[0050] The translation hydraulic rod 53 drives the translation block 51 to move, the translation block 51 drives the translation rod 52 to move, the translation rod 52 drives the grinding shell 41 to move, and the grinding shell 41 drives the grinding blades 42 to move, so that the grinding shell 41 can be translated on the inner cylinder 1, thereby adjusting the length of the grinding shell 41 extending into the inner cylinder 1, thereby adjusting the particle size of the material entering. For example, if the content of large particles in the material is high, the thickness of the large particles located on the outer circle of the inner cylinder 1 is larger after centrifugation. At this time, the length of the grinding shell 41 extending into the inner cylinder 1 can be made longer, so that the large particles located on the outer circle of the inner cylinder 1 can all enter the grinding shell 41 for grinding, thereby improving the grinding efficiency.

[0051] The end of the pulverizing shell 41 away from the rotating rod 2 is arc-shaped, so that the material in the pulverizing shell 41 can enter the inner cylinder 1 through the bottom opening of the pulverizing shell 41 under the action of inertia and the arc structure, and will not be retained in the pulverizing shell 41, reducing the difficulty of cleaning and reducing the material loss rate.

[0052] Further, refer to Figures 1-11 The crushing assembly 4 also includes a rotating shaft 44 and a driving belt member 45. The rotating shaft 44 is rotatably connected to the crushing shell 41. One end of the rotating shaft 44 passes through the crushing shell 41 and extends outward. The crushing blade 42 is fixedly mounted on the rotating shaft 44. The driving belt member 45 includes a driving active pulley, a driving passive pulley and a driving belt. The driving assembly 6 can drive the driving active pulleys in all the crushing assemblies 4 to rotate. The driving passive pulley is fixedly mounted on the rotating shaft 44. The driving belt is connected to the driving active pulley and the driving passive pulley.

[0053] The driving assembly 6 drives the driving pulley to rotate, the driving pulley drives the driving belt to rotate, the driving belt drives the driven pulley to rotate, the driven pulley drives the rotating shaft 44 to rotate, and the rotating shaft 44 drives the crushing blade 42 to rotate.

[0054] The outer side of the driving belt member 45 is covered with a belt protection shell, and the belt protection shell is fixedly installed on the pulverizing shell 41.

[0055] Further, refer to Figures 1-11 The driving assembly 6 includes a driving motor 61 and a driving shaft 62. The driving motor 61 is fixedly mounted on the translation block 51. The driving shaft 62 is fixedly mounted on the output end of the driving motor 61. The driving shaft 62 passes through the translation block 51 and is rotatably connected to the translation block 51. The driving active pulleys in all the crushing assemblies 4 are fixedly mounted on the driving shaft 62.

[0056] The driving motor 61 drives the driving shaft 62 to rotate, the driving shaft 62 drives the driving active pulley to rotate, the driving active pulley drives the driving belt to rotate, the driving belt drives the driven pulley to rotate, the driven pulley drives the rotating shaft 44 to rotate, and the rotating shaft 44 drives the crushing blade 42 to rotate.

[0057] The translation rod 52 is fixedly mounted on the synchronization block, and the drive shaft 62 is rotatably connected to the synchronization block. When the translation rod 52 drives the pulverizing shell 41 to move, the translation rod 52 drives the drive shaft 62 to move synchronously.

[0058] Further, refer to Figures 1-11 , fixed side plates 7 are fixedly installed on both sides of the inner tube 1, and an outer tube 8 is fixedly installed on the fixed side plates 7. The outer tube 8 is sleeved on the inner tube 1, and a feed pipe 9 is fixedly connected to the top of the inner tube 1. The feed pipe 9 passes through the outer tube 8 and extends outward. The bottom of the inner tube 1 is fixedly connected to a discharge pipe 10, which passes through the outer tube 8 and extends outward. A heat source inlet pipe 11 is fixedly connected to the side wall of the outer tube 8, and a heat source outlet pipe 12 is fixedly connected to the other side wall of the outer tube 8.

[0059] The material enters the inner cylinder 1 through the feed pipe 9, and the external heat source enters between the outer cylinder 8 and the inner cylinder 1 through the heat source inlet pipe 11. The external heat source heats the inner cylinder 1 and the material in the inner cylinder 1, dries the material, and cooperates with the crushing component 4 to crush the large particles of material, which has higher drying efficiency and better drying effect. The external heat source is discharged through the heat source outlet pipe 12 for circulation, and the crushed and dried material is discharged through the discharge pipe 10.

[0060] The heat source is preferably one of high-temperature hot water, high-temperature oil and high-temperature steam in the prior art.

[0061] Further, refer to Figures 1-11 A support frame 13 is provided below the inner cylinder 1, a support plate is fixedly installed on the support frame 13, the outer cylinder 8 is fixedly installed on the support plate, and the two ends of the rotating rod 2 respectively pass through the corresponding fixed side plates 7 and are rotatably connected to the support frame 13.

[0062] The support frame 13 supports the outer cylinder 8 and the inner cylinder 1, making the outer cylinder 8 and the inner cylinder 1 more stable and less likely to shake.

[0063] Further, refer to Figures 1-11 A rotating motor 14 is fixedly mounted on the support frame 13, a driving pulley is fixedly mounted on the output end of the rotating motor 14, a driven pulley is fixedly mounted on the rotating rod 2, and a transmission belt is connected to the driving pulley and the driven pulley.

[0064] The rotating motor 14 drives the driving transmission pulley to rotate, the driving transmission pulley drives the transmission belt to rotate, the transmission belt causes the driven transmission pulley to rotate, the driven transmission pulley drives the rotating rod 2 to rotate, and the rotating rod 2 drives the toggle assembly to rotate.

[0065] Further, refer to Figures 1-11 The translation hydraulic rod 53 is fixedly installed on the fixed side plate 7. A translation hole is opened at the position of the fixed side plate 7 corresponding to the translation block 51. The translation block 51 passes through the translation hole. A closing plate is fixedly installed on the translation block 51. The closing plate corresponds to the translation hole. Two partitions 15 are fixedly installed between the inner cylinder 1 and the outer cylinder 8. Both ends of the partition 15 are fixedly installed on the corresponding fixed side plates 7. The crushing assembly 4 is arranged between the two partitions 15.

[0066] The translation hydraulic rod 53 and the drive motor 61 are located outside the outer cylinder 8, so that the heat source in the outer cylinder 8 will not heat the translation hydraulic rod 53 and the drive motor 61, ensuring the heat dissipation effect of the translation hydraulic rod 53 and the drive motor 61, and improving the service life of the translation hydraulic rod 53 and the drive motor 61. The translation block 51 moves in the translation hole, and the closing plate closes the translation hole to prevent dust from entering between the outer cylinder 8 and the inner cylinder 1 through the translation hole, making the crushing assembly 4 located between the two partitions 15 more tidy. A sealed cavity is formed between the two partitions 15, the inner cylinder 1, the outer cylinder 8 and the two fixed side plates 7. The crushing assembly 4 is arranged here to isolate the heat source, prevent the heat source from entering the inner cylinder 1 through the gap between the crushing shell 41 and the inner cylinder 1, and prevent the heat source from leaking through the translation hole.

[0067] The top and bottom of the pulverizing shell 41 respectively abut against the corresponding partitions 15. When the pulverizing shell 41 moves toward the outside of the inner cylinder 1, the partitions 15 close the top and bottom openings of the pulverizing shell 41 to prevent the material in the pulverizing shell 41 from leaking to the outside of the inner cylinder 1.

[0068] A rake-type dryer uses the above-mentioned pulverizing mechanism.

[0069] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 scope of protection of the present invention.

Claims

1. A crushing mechanism, characterized in that: The invention comprises an inner cylinder, a rotating rod is provided in the inner cylinder, a plurality of toggle assemblies are provided along the axis of the rotating rod, the toggle assemblies include a plurality of toggle units, the plurality of toggle units are arranged in a circumferential manner, and a crushing assembly is provided on the inner cylinder corresponding to the toggle assemblies; the crushing assembly includes a crushing shell and crushing blades, the top and bottom of the crushing shell are both opened, and the crushing blades are provided in the crushing shell and rotate in the crushing shell; The toggle unit includes a toggle rake, a fixed rod, an extrusion block, a card block, a reset spring, a reset torsion spring, a fixed frame, a fixed shell and a limit rod. The fixed rod is fixedly mounted on the rotating rod, the toggle rake is rotatably mounted on the fixed rod, the other end of the toggle rake is against the inner cylinder, the card block is fixedly mounted on the side wall of the toggle rake, and a card slot is provided on the extrusion block corresponding to the card block position; the reset spring presses the card block into the card slot through the extrusion block, and when the extrusion block rotates to the position of the crushing shell, the crushing shell pushes the extrusion block to move, and the extrusion block causes the card block to disengage from the card slot. After the card block disengages from the card slot, the toggle rake moves to the position of the crushing shell and is pushed by the crushing shell to rotate on the fixed rod, the reset torsion spring accumulates force, and when the toggle rake moves to disengage from the crushing shell, The reset torsion spring drives the toggle rake to rotate and reset, and the toggle rake drives the card block to rotate into the card slot; the fixed shell is fixedly installed on the fixed frame, the limit rod is fixedly installed on the side of the extrusion block close to the fixed shell, the limit rod passes through the fixed shell and slides with the fixed shell, and the end of the limit rod away from the extrusion block is fixedly installed with an anti-falling block, one end of the reset spring is fixedly installed on the extrusion block, and the other end of the reset spring is fixedly installed on the fixed shell. The reset spring is sleeved on the limit rod, and the two sides of the extrusion block are inclined; the fixed rod drives the fixed frame to rotate, and the fixed frame drives the fixed shell and the toggle rake to rotate around the rotating rod. When the extrusion block is against the crushing shell, the extrusion block moves in the direction away from the card block under the action of the inclined side, so that the card block is out of the card slot; The crushing assembly also includes a rotating shaft and a driving belt member, the rotating shaft is rotatably connected to the crushing shell, one end of the rotating shaft passes through the crushing shell and extends outward, the crushing blade is fixedly installed on the rotating shaft, the driving belt member includes a driving active pulley, a driving passive pulley and a driving belt, the driving assembly drives the driving active pulleys in all the crushing assemblies to rotate, the driving passive pulley is fixedly installed on the rotating shaft, and the driving belt is connected to the driving active pulley and the driving passive pulley; The inner cylinder is also provided with a translation assembly and a driving assembly; a crushing hole is opened on the side wall of the inner cylinder corresponding to the position of the crushing shell, and the crushing shell slides into the crushing hole. The translation assembly includes a translation block, a translation rod and a translation hydraulic rod. The crushing shells in several crushing assemblies are fixedly mounted on the translation rod, the output end of the translation hydraulic rod is fixedly mounted on the translation block, the translation rod is fixedly mounted on the translation block, and the end of the crushing shell away from the rotating rod is arc-shaped.

2. A crushing mechanism according to claim 1, characterized in that: The driving assembly includes a driving motor and a driving shaft. The driving motor is fixedly mounted on the translation block. The driving shaft is fixedly mounted on the output end of the driving motor. The driving shaft passes through the translation block and is rotationally connected to the translation block. The driving active pulleys in all the crushing assemblies are fixedly mounted on the driving shaft.

3. A crushing mechanism according to claim 2, characterized in that: Fixed side plates are fixedly installed on both sides of the inner tube, and an outer tube is fixedly installed on the fixed side plates. The outer tube is sleeved on the inner tube. The top of the inner tube is fixedly connected with a feed pipe, which passes through the outer tube and extends outward. The bottom of the inner tube is fixedly connected with a discharge pipe, which passes through the outer tube and extends outward. A heat source inlet pipe is fixedly connected to the side wall of the outer tube, and a heat source outlet pipe is fixedly connected to the other side wall of the outer tube.

4. A crushing mechanism according to claim 3, characterized in that: A support frame is provided below the inner cylinder, a support plate is fixedly mounted on the support frame, the outer cylinder is fixedly mounted on the support plate, and both ends of the rotating rod respectively pass through the corresponding fixed side plates and are rotatably connected to the support frame.

5. A crushing mechanism according to claim 4, characterized in that: A rotating motor is fixedly installed on the support frame, a driving drive pulley is fixedly installed on the output end of the rotating motor, a driven drive pulley is fixedly installed on the rotating rod, and a transmission belt is connected to the driving drive pulley and the driven drive pulley.

6. A crushing mechanism according to claim 5, characterized in that: The translation hydraulic rod is fixedly installed on the fixed side plate. A translation hole is opened on the fixed side plate corresponding to the position of the translation block. The translation block passes through the translation hole. A closing plate is fixedly installed on the translation block. The closing plate corresponds to the translation hole. Two partitions are fixedly installed between the inner cylinder and the outer cylinder. Both ends of the partition are fixedly installed on the corresponding fixed side plates. The crushing assembly is arranged between the two partitions.

7. A rake dryer, characterized in that: The pulverizing mechanism according to claim 6 is used.

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