A material multi-stage continuous crushing method and device

Abstract

The present invention relates to the technical field of multi-stage material crushing devices, specifically a multi-stage continuous material crushing method and device, including a crushing box and a crushing shell, a feed hopper is fixedly provided on the left side of the top of the crushing box, and the interior of the feed hopper is connected to the interior of the crushing box, a drop hopper is fixedly provided at the bottom of the crushing box, and a crushing shell is also fixedly provided at the bottom of the drop hopper, and the interior of the drop hopper is respectively connected to the interior of the crushing box and the crushing shell. The present invention combines multiple crushing devices, and the devices are well sealed to reduce dust overflow, while protecting the health of operators, the overall sample collection rate of the equipment is improved, the material collection rate is significantly improved through the structural matching combination between the devices, and through the material channel arrangement and other methods, and during the use of the present invention, the final product can be obtained after one pouring, which greatly reduces the labor intensity of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-stage material crushing devices, and in particular to a multi-stage continuous material crushing method and device. Background Art

[0002] In the process of analyzing and testing bulk solid minerals, a certain amount of samples need to be taken according to a certain sampling method, and then the samples are crushed to a specified particle size range using a step-by-step crushing method. For samples with a particle diameter greater than 100mm, it is generally necessary to go through more than 3 crushing processes. Generally, large samples are crushed to about 13-25mm, then crushed to about 3-6mm, and then crushed to 0.2mm or finer particles.

[0003] In the above process, the sample needs to be repeatedly sent to the crushing device, which is labor-intensive and inefficient. During the crushing process, the sample passes through different equipment, and each equipment will cause a certain amount of sample loss. The more equipment the sample passes through, the higher the sample loss rate. The sample will generate some dust during the crushing process. The more complicated the sample crushing process is, the longer the path is, the greater the amount of dust is, and the dust will be harmful to the health of the operator.

[0004] Therefore, we proposed a multi-stage continuous crushing method and device for materials. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method and device for multi-stage continuous crushing of materials, which are used to solve the above-mentioned technical defects.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-stage continuous crushing method for materials, specifically comprising the following steps:

[0007] Step 1, feed the material into the crushing box through the feed hopper, at this time, the movable crushing plate drives the flywheel to rotate through the output shaft of the driving motor, and the flywheel drives the driving cam to rotate inside the rotating sleeve through the driving shaft, and the helical teeth on one side of the driving cam arranged on the driving shaft cooperate and slide with the helical tooth grooves on the inner wall of the rotating sleeve, so that the rotating sleeve rotates synchronously with the driving cam, and the movable crushing plate is driven to rotate synchronously by the rotating sleeve, and one side of the movable crushing plate is used to drive the material to move to one side of the fixed crushing plate, and the left side of the movable crushing plate and the right side of the fixed crushing plate are used for preliminary crushing processing, and as the driving cam continues to rotate, the helical teeth on one side of the driving cam are disengaged from the helical tooth grooves, and the movable crushing plate is rotated and reset under the action of the torsion spring, and the material continues to be transported to the inside of the crushing box through the feed hopper;

[0008] Step 2: When automatically retaining samples of the initially crushed materials, the driving end of the servo electric cylinder 2 is extended at a certain frequency, and the driving end of the servo electric cylinder 2 is used to control the movable connecting rod to rotate, thereby controlling the tipping frame to swing left and right inside the drop hopper. When the upper side of the tipping frame contacts the left side of the inner wall of the drop hopper, the inside of the drop hopper is connected with the inside of the sample retaining box through the sample retaining port, and the initially crushed materials entering the drop hopper enter the inside of the sample retaining box along the tipping frame and the sample retaining port;

[0009] Step 3: After the preliminary crushing, the material enters the interior of the crushing shell through the drop hopper, and the output shaft of the crushing reduction motor is used to control the dynamic grinding disc to rotate on the right side of the static grinding disc, so as to crush the preliminary crushed material. Finally, the crushed material enters the interior of the sample collector along the discharge pipe.

[0010] A multi-stage continuous crushing device for materials comprises a crushing box and a pulverizing shell, wherein a feed hopper is fixedly arranged on the left side of the top of the crushing box, and the interior of the feed hopper is connected with the interior of the crushing box, a drop hopper is fixedly arranged at the bottom of the crushing box, and a pulverizing shell is also fixedly arranged at the bottom of the drop hopper, the interior of the drop hopper is respectively connected with the interior of the crushing box and the interior of the pulverizing shell, a discharge pipe is fixedly arranged at the bottom of the pulverizing shell, and a sample collector is fixedly arranged at the bottom of the discharge pipe, a cyclone dust collector is fixedly arranged on the top of the sample collector, and a filter box is also fixedly arranged on the top of the cyclone dust collector.

[0011] Preferably, a dust exhaust pipe is fixedly provided on one side of the cyclone dust collector, and dust suction pipes are fixedly provided above and below the inside of the dust exhaust pipe respectively, one end of the two dust suction pipes are respectively connected to the interior of the crushing box and the pulverizing shell, and one end of the dust exhaust pipe is connected to the interior of the cyclone dust collector.

[0012] Preferably, a crushing mechanism is provided inside the crushing box, and the crushing mechanism includes a movable crushing plate and a fixed crushing plate, a fixed crushing plate is rotatably provided on the left side of the crushing box, and the top of the fixed crushing plate is rotatably connected to the inner wall of the crushing box, and a movable crushing plate is also rotatably provided on the right side of the crushing box, a rotating sleeve is rotatably provided on the right side of the top of the crushing box, and the bottom of the rotating sleeve is fixedly connected to the top of the movable crushing plate, a flywheel is rotatably provided on the back of the crushing box, and a driving motor is fixedly provided on the right side of the crushing box, the output shaft of the driving motor is connected to the surface of the flywheel through a belt drive, a driving shaft is fixedly provided inside the flywheel, one end of the driving shaft extends to the inside of the rotating sleeve, and the inside of the rotating sleeve is movably connected to one end of the driving shaft through a torsion spring, a driving cam is fixedly provided on one end of the driving shaft, and helical teeth are provided on one side of the driving cam, the inner wall of the rotating sleeve is provided with helical tooth grooves, and the helical tooth grooves account for one sixth of the circumference of the inner wall of the rotating sleeve.

[0013] Preferably, a limit frame is fixedly provided on the right side inside the crushing box, and a movable plate is rotatably provided on the left side of the limit frame through a connecting block, and the left side of the movable plate is rotatably connected to the lower side of the right side of the movable crushing plate through the connecting block, a movable tooth plate is slidably provided inside the limit frame, and one side of the movable tooth plate is fixedly connected to the connecting block on the right side, a rotating rod is also rotatably provided on the right side inside the crushing box, and a matching gear is fixedly provided on the surface of the rotating rod, and the surface of the matching gear is meshed with the surface of the movable tooth plate for transmission.

[0014] Preferably, an adjusting motor and an arc-shaped positioning frame are fixedly provided at the lower part of the front face of the crushing box, and an adjusting cam is rotatably provided on the left side inside the crushing box, one end of the output shaft of the adjusting motor is fixedly connected to one end of the adjusting cam, and the right side of the adjusting cam is movably contacted with the left side of the fixed crushing plate, a connecting frame is also fixedly provided on the surface of the output shaft of the adjusting motor, and one side of the connecting frame is slidably connected to the inside of the arc-shaped positioning frame, a positioning electric cylinder is fixedly provided on the top of the connecting frame, and a positioning pin is fixedly provided on the driving end of the positioning electric cylinder, a plurality of positioning pin holes are provided inside the arc-shaped positioning frame, and one end of the positioning pin is movably connected to the inside of the positioning pin hole.

[0015] Preferably, a cleaning knife is movably provided on one side of the fixed crushing plate and the movable crushing plate, a servo electric cylinder 1 is fixedly provided on both sides of the top of the crushing box, and the driving ends of the two servo electric cylinders 1 are respectively fixedly connected to the tops of the two cleaning knives.

[0016] Preferably, an automatic sample retaining component is also provided inside the drop hopper, and the automatic sample retaining component includes a flipping frame and a servo electric cylinder 2. A flipping frame and a connecting rod are rotatably provided inside the drop hopper, and one end of the connecting rod is fixedly connected to the lower part of the flipping frame, one end of the connecting rod extends to the outside of the drop hopper, and a movable connecting rod is also fixedly provided on one end of the connecting rod. A servo electric cylinder 2 is fixedly provided on one side of the drop hopper, and the driving end of the servo electric cylinder 2 is rotatably connected to one end of the movable connecting rod. A sample retaining port is also provided on one side of the bottom of the drop hopper, and a sample retaining box is provided at the bottom of the sample retaining port.

[0017] Preferably, a crushing mechanism is provided inside the crushing shell, and the crushing mechanism includes a dynamic grinding disc and a static grinding disc. A mounting seat is fixedly provided on one side of the crushing shell, and a crushing reduction motor is fixedly provided on the top of the mounting seat. A static grinding disc is provided on the left side of the crushing shell, and a dynamic grinding disc is also provided on the right side of the crushing shell. The left side of the dynamic grinding disc is rotatably connected to the right side of the static grinding disc, and the right side of the dynamic grinding disc is fixedly connected to the output shaft of the crushing reduction motor.

[0018] Preferably, an adjusting knob is rotatably provided on one side of the pulverizing shell, and the right end of the adjusting knob is rotatably connected to the left side of the static grinding disc, a feed port is provided on the top of the static grinding disc, and a cooling pipe is also provided inside the static grinding disc.

[0019] Compared with the prior art, it has the following beneficial effects:

[0020] 1. In the present invention, after combining multiple crushing devices, the devices are well sealed, which reduces the spillage of dust, protects the health of operators, and improves the overall sample collection rate of the equipment. The material collection rate is significantly improved through the structural matching combination between the devices and the material channel arrangement. In addition, during the use of the present invention, the final product can be obtained after one pouring of the material, which greatly reduces the labor intensity of the operator.

[0021] 2. In the present invention, by optimizing the installation and combination of the crushing equipment, the material can be crushed from 100-150mm to less than 0.2mm at one time. In addition, according to the crushing requirements of different samples and the requirements of parameter settings, intermediate state samples of 13mm, 6mm, and 3mm can be automatically obtained from the crushing process for use as reference samples.

[0022] 3. In the present invention, the left side of the movable crushing plate and the right side of the fixed crushing plate are used for preliminary crushing processing. As the driving cam continues to rotate, the helical teeth on one side of the driving cam are disengaged from the helical tooth grooves. Then, under the action of the torsion spring, the movable crushing plate is rotated and reset, and the material is continuously transported to the inside of the crushing box through the feed hopper, thereby realizing continuous feeding and crushing processing of the material.

[0023] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood through implementation of the present invention. The objects and other advantages of the present invention may be realized and obtained through the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a multi-stage continuous material crushing method and device structure according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the movable crushing plate and the fixed crushing plate according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of an adjusting cam and a positioning electric cylinder structure according to an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the rotating sleeve and the driving cam structure of an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a movable plate, a movable tooth plate and a matching gear structure according to an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the internal structure of a drop hopper according to an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the internal structure of a pulverizing shell according to an embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the structure of a static grinding disc and a dynamic grinding disc according to an embodiment of the present invention;

[0032] Fig. 9 It is a schematic diagram of the static grinding disc and the cooling tube structure of an embodiment of the present invention;

[0033] Fig.10 A schematic diagram of the dust exhaust pipe and dust suction pipe structure according to an embodiment of the present invention;

[0034] Fig.11 A schematic diagram of a static grinding disc structure according to an embodiment of the present invention;

[0035] Fig.12 It is a schematic diagram of the structure of the adjusting knob and the pulverizing shell according to an embodiment of the present invention.

[0036] In the figure, 1, crushing box; 2, feed hopper; 3, drop hopper; 4, crushing shell; 5, cyclone dust collector; 6, filter box; 7, sample collector; 8, drive motor; 9, flywheel; 10, drive shaft; 11, drive cam; 12, rotating sleeve; 13, movable crushing plate; 14, fixed crushing plate; 15, adjustment cam; 16, adjustment motor; 17, arc positioning frame; 18, connecting frame; 19, positioning electric cylinder; 20, positioning pin hole; 21, limit frame; 2 2. Movable plate; 23. Movable tooth plate; 24. Rotating rod; 25. Matching gear; 26. Servo electric cylinder one; 27. Cleaning knife; 28. Flipping frame; 29. ​​Connecting rod; 30. Servo electric cylinder two; 31. Movable connecting rod; 32. Sample port; 33. Sample box; 34. Mounting seat; 35. Crushing reduction motor; 36. Dynamic grinding disc; 37. Static grinding disc; 38. Adjusting knob; 39. Discharge pipe; 40. Dust exhaust pipe; 41. Dust suction pipe; 42. Cooling pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1 As shown, a multi-stage continuous crushing device for materials includes a crushing box 1 and a pulverizing shell 4, a feed hopper 2 is fixedly arranged on the left side of the top of the crushing box 1, and the interior of the feed hopper 2 is connected to the interior of the crushing box 1, a drop hopper 3 is fixedly arranged at the bottom of the crushing box 1, and a pulverizing shell 4 is also fixedly arranged at the bottom of the drop hopper 3, the interior of the drop hopper 3 is respectively connected to the interiors of the crushing box 1 and the pulverizing shell 4, a discharge pipe 39 is fixedly arranged at the bottom of the pulverizing shell 4, and a sample collector 7 is fixedly arranged at the bottom of the discharge pipe 39, a cyclone dust collector 5 is fixedly arranged on the top of the sample collector 7, and a filter box 6 is also fixedly arranged on the top of the cyclone dust collector 5.

[0040] See also Figure 1 and Fig.10 As shown, further, a dust exhaust pipe 40 is fixedly provided on one side of the cyclone dust collector 5, and dust suction pipes 41 are fixedly provided at the upper and lower parts of the dust exhaust pipe 40, one end of the two dust suction pipes 41 are respectively connected with the interior of the crushing box 1 and the pulverizing shell 4, and one end of the dust exhaust pipe 40 is connected with the interior of the cyclone dust collector 5. By arranging the dust exhaust pipe 40 on one side of the cyclone dust collector 5, when the material is continuously crushed in multiple stages, the dust generated inside the crushing box 1 and the pulverizing shell 4 is timely extracted through the two dust suction pipes 41, and finally the extracted dust is sent to the interior of the cyclone dust collector 5 for treatment through the dust exhaust pipe 40, thereby effectively reducing the dust overflow from the inside of the equipment and improving the environmental protection of the crushing equipment.

[0041] In a specific embodiment, the present invention combines multiple crushing devices to ensure good sealing between the devices, thereby reducing dust spillage, protecting the health of operators, and improving the overall sample collection rate of the equipment. The material collection rate is significantly improved through structural matching between the devices and through material channel arrangement. In addition, during use of the present invention, the final product can be obtained after one pouring of the material, which greatly reduces the labor intensity of the operator.

[0042] Furthermore, a crushing mechanism is provided inside the crushing box 1, a pulverizing mechanism is provided inside the pulverizing shell 4, and an automatic sample retaining component is also provided inside the hopper 3; the material is preliminarily crushed by the crushing mechanism inside the crushing box 1, and the preliminarily crushed material is selected and sampled inside the hopper 3, and then the preliminarily crushed material is more finely pulverized by the crushing mechanism inside the pulverizing shell 4, and finally the pulverized material is sent to the sample collector 7 through the discharge pipe 39 for collection. The entire crushing and pulverizing process is all inside the equipment, without the need for manual auxiliary operation, and can also effectively reduce the overflow of dust to the outside, which plays a good protective role in the air environment around the equipment and reduces the harmful effect of the dust generated during the crushing process on human health.

[0043] Embodiment 2:

[0044] See also Figures 2 to 5 As shown, further, the crushing mechanism includes a movable crushing plate 13 and a fixed crushing plate 14, the fixed crushing plate 14 is rotatably provided on the left side of the crushing box 1, and the top of the fixed crushing plate 14 is rotatably connected to the inner wall of the crushing box 1, the movable crushing plate 13 is also rotatably provided on the right side of the crushing box 1, the rotating sleeve 12 is rotatably provided on the right side of the top of the crushing box 1, and the bottom of the rotating sleeve 12 is fixedly connected to the top of the movable crushing plate 13, the flywheel 9 is rotatably provided on the back of the crushing box 1, and the right side of the crushing box 1 is fixedly provided There is a driving motor 8, the output shaft of the driving motor 8 is connected to the surface of the flywheel 9 through a belt drive, a driving shaft 10 is fixedly arranged inside the flywheel 9, one end of the driving shaft 10 extends to the inside of a rotating sleeve 12, and the inside of the rotating sleeve 12 is movably connected to one end of the driving shaft 10 through a torsion spring, a driving cam 11 is fixedly arranged at one end of the driving shaft 10, and one side of the driving cam 11 is provided with helical teeth, the inner wall of the rotating sleeve 12 is provided with helical tooth grooves, and the helical tooth grooves occupy one sixth of the circumferential length of the inner wall of the rotating sleeve 12.

[0045] It should be noted that the material is fed into the crushing box 1 through the feed hopper 2, and at this time, the movable crushing plate 13 drives the flywheel 9 to rotate through the output shaft of the drive motor 8, and the flywheel 9 drives the driving cam 11 to rotate inside the rotating sleeve 12 through the driving shaft 10, and the helical teeth on one side of the driving cam 11 set on the driving shaft 10 cooperate and slide with the helical tooth grooves on the inner wall of the rotating sleeve 12, so that the rotating sleeve 12 rotates synchronously with the driving cam 11, and the rotating sleeve 12 drives the movable crushing plate 13 to rotate synchronously, and one side of the movable crushing plate 13 is used to drive the material to move to one side of the fixed crushing plate 14, and the left side of the movable crushing plate 13 and the right side of the fixed crushing plate 14 are used for preliminary crushing processing, and as the driving cam 11 continues to rotate, the helical teeth on one side of the driving cam 11 are disengaged from the helical tooth grooves, and the movable crushing plate 13 is rotated and reset under the action of the torsion spring, and the material is continued to be transported to the inside of the crushing box 1 through the feed hopper 2, thereby realizing continuous feeding and crushing of the material.

[0046] Furthermore, a limit frame 21 is fixedly provided on the right side inside the crushing box 1, and a movable plate 22 is rotatably provided on the left side of the limit frame 21 through a connecting block. The left side of the movable plate 22 is rotatably connected to the lower side of the right side of the movable crushing plate 13 through a connecting block. A movable tooth plate 23 is slidably provided inside the limit frame 21, and one side of the movable tooth plate 23 is fixedly connected to the connecting block on the right side. A rotating rod 24 is also rotatably provided on the right side inside the crushing box 1, and a matching gear 25 is fixedly provided on the surface of the rotating rod 24, and the surface of the matching gear 25 is meshed with the surface of the movable tooth plate 23 for transmission.

[0047] It should be noted that when controlling the movable crushing plate 13 to swing left and right, the movable tooth plate 23 and the rotating rod 24 arranged on the right side of the movable plate 22 are meshed and transmitted, and the movable plate 22 is used to limit the left and right swing amplitude of the movable crushing plate 13 to ensure the stability of the movable crushing plate 13 during the left and right swinging process.

[0048] Furthermore, an adjusting motor 16 and an arc-shaped positioning frame 17 are fixedly provided at the lower part of the front face of the crushing box 1, and an adjusting cam 15 is rotatably provided on the left side inside the crushing box 1, one end of the output shaft of the adjusting motor 16 is fixedly connected to one end of the adjusting cam 15, and the right side of the adjusting cam 15 is movably contacted with the left side of the fixed crushing plate 14, a connecting frame 18 is fixedly provided on the output shaft surface of the adjusting motor 16, and one side of the connecting frame 18 is slidably connected to the inside of the arc-shaped positioning frame 17, a positioning electric cylinder 19 is fixedly provided on the top of the connecting frame 18, and a positioning pin is fixedly provided on the driving end of the positioning electric cylinder 19, a plurality of positioning pin holes 20 are provided inside the arc-shaped positioning frame 17, and one end of the positioning pin is movably connected to the inside of the positioning pin hole 20.

[0049] It should be noted that when the average gap between the movable crushing plate 13 and the fixed crushing plate 14 is adjusted, the adjusting cam 15 is driven to rotate by the output shaft of the adjusting motor 16 to change the contact position between the surface of the adjusting cam 15 and one side of the fixed crushing plate 14, thereby adjusting the position of the fixed crushing plate 14, and the positioning pin set at the driving end of the positioning electric cylinder 19 is movably plugged into the positioning pin hole 20 inside the arc positioning frame 17 to limit the rotation of the adjusting cam 15, thereby ensuring the support stability of the adjusting cam 15 on the fixed crushing plate 14 during the material crushing process. The average gap between the crushing movable plate and the crushing fixed plate can generally be adjusted between 1mm, 3mm, 5mm, 6mm, 10mm, and 13mm, and different gaps correspond to different adjustment holes. In the figure, the position of the positioning electric cylinder 19 is controlled by the adjusting motor 16 or other methods. After receiving the command from the upper computer, the positioning electric cylinder 19 reaches the corresponding position, and then the positioning electric cylinder 19 cooperates with the positioning pin to be inserted into the positioning pin hole 20 for fixed limit.

[0050] Furthermore, a cleaning knife 27 is movably provided on one side of the fixed crushing plate 14 and the movable crushing plate 13, and a servo electric cylinder 26 is fixedly provided on both sides of the top of the crushing box 1, and the driving ends of the two servo electric cylinders 26 are respectively fixedly connected to the tops of the two cleaning knives 27. After completing the preliminary crushing process of the material, the driving ends of the two servo electric cylinders 26 are used to control the two cleaning knives 27 to move downward along the opposite sides of the movable crushing plate 13 and the fixed crushing plate 14, and the two cleaning knives 27 are used to clean the residual materials between the movable crushing plate 13, the fixed crushing plate 14 and the side wall of the crushing box 1.

[0051] Embodiment 3:

[0052] See also Figure 6 As shown, further, the automatic sample retention component includes a flipping frame 28 and a servo electric cylinder 230, the inside of the drop hopper 3 is rotatably provided with a flipping frame 28 and a connecting rod 29, and one end of the connecting rod 29 is fixedly connected to the lower part of the inside of the flipping frame 28, one end of the connecting rod 29 extends to the outside of the drop hopper 3, and one end of the connecting rod 29 is also fixedly provided with a movable connecting rod 31, one side of the drop hopper 3 is fixedly provided with a servo electric cylinder 230, and the driving end of the servo electric cylinder 230 is rotatably connected to one end of the movable connecting rod 31, one side of the bottom of the drop hopper 3 is also provided with a sample retention port 32, and the bottom end of the sample retention port 32 is provided with a sample retention box 33.

[0053] It should be noted that when automatically retaining samples of the initially crushed materials, the driving end of the servo electric cylinder 2 30 is extended at a certain frequency, and the driving end of the servo electric cylinder 2 30 is used to control the movable connecting rod 31 to rotate, thereby controlling the tipping frame 28 to swing left and right inside the drop hopper 3. When the upper side of the tipping frame 28 contacts the left side of the inner wall of the drop hopper 3, the inside of the drop hopper 3 is connected to the inside of the sample box 33 through the sample retaining port 32, and the initially crushed materials entering the drop hopper 3 are moved along the tipping frame 28 and the sample retaining port 32. Enter the interior of the sample retention box 33 to retain intermediate samples at fixed time intervals. The crushed material moves downward through the drop hopper 3. If there is a need to retain intermediate samples during the sample preparation process, the flip frame 28 will be controlled by the servo electric cylinder 230 to probe at a certain frequency to retain intermediate samples at fixed time intervals. The frequency is related to the weight ratio of the retained sample to the subsequently prepared sample; for example, 5kg of material is fed, 0.5kg is subsequently prepared, and 4.5kg of sample is retained, then the sample retention opening of the sample retention port 32 is open 90% of the time to retain the sample.

[0054] Embodiment 4:

[0055] See also Figures 7 to 9 as well as Fig.11 and Fig.12 As shown, further, the pulverizing mechanism includes a dynamic grinding disc 36 and a static grinding disc 37, a mounting seat 34 is fixedly provided on one side of the pulverizing shell 4, and a pulverizing reduction motor 35 is fixedly provided on the top of the mounting seat 34, a static grinding disc 37 is provided on the left side of the pulverizing shell 4, and a dynamic grinding disc 36 is also provided on the right side of the pulverizing shell 4, the left side of the dynamic grinding disc 36 is rotatably connected to the right side of the static grinding disc 37, and the right side of the dynamic grinding disc 36 is fixedly connected to the output shaft of the pulverizing reduction motor 35;

[0056] An adjusting knob 38 is rotatably provided on one side of the pulverizing shell 4, and the right end of the adjusting knob 38 is rotatably connected to the left side of the static grinding disk 37. By rotating the adjusting knob 38, the distance between the static grinding disk 37 and the dynamic grinding disk 36 is adjusted and controlled. In addition, a solid knob is also provided on one side of the adjusting knob 38. The static grinding disk 37 can be adjusted to any position between 0.05-3mm from the dynamic grinding disk 36 by the adjusting knob 38. After adjusting to the specified position, the solid knob is tightened to fix the static grinding disk 37.

[0057] A feed port is provided at the top of the static grinding disc 37, and a cooling pipe 42 is provided inside the static grinding disc 37. A low-temperature gas or a low-temperature liquid is introduced into the cooling pipe 42 to reduce the heat generated during the grinding process. The output shaft of the grinding reduction motor 35 is used to control the dynamic grinding disc 36 to rotate on the right side of the static grinding disc 37, so as to grind the preliminary crushed material. Finally, the crushed material enters the sample collector 7 along the discharge pipe 39.

[0058] It should be noted that the angle between the inner teeth of the static grinding disc 37 and the dynamic grinding disc 36 and the horizontal direction is between 5-30°, preferably between 10-25°. This angle determines how large the particles can enter the cutting surface of the inner teeth. The width of the cutting surface on the inner teeth is between 1-5mm, preferably 2-3mm. The angle between the cutting surface and the horizontal is between 10-60°, preferably between 30-50°. The above parameters of the cutting surface determine the crushing efficiency of the particles between the cutting surfaces.

[0059] In addition, there are several guide holes on the static grinding disc 37. The guide holes are tilted at different angles to guide the gas to blow to different positions of the dynamic grinding disc 36. The guide holes are located at other parts of the static grinding disc 37 except the cutting teeth. The guide holes are divided into various forms, A, B, and C. The outlet of type A is circular, and its main function is to take fine particles away from the nearby area. Multiple type A guide holes cooperate with each other to take small-sized particles out of the grinding area as soon as possible to avoid repeated grinding to make the particles finer. At the same time, the grinding opportunity can be given to larger particles to improve the overall grinding efficiency; the outlet of type B is long and has a cleaning effect. The particles have a certain viscosity and may adhere to the grinding chamber. The gas ejected from the B-type guide hole is ejected at a certain frequency, and the ejection speed also varies within a certain range, which can clean up the adhered particles; the C-type outlet is honeycomb-shaped, and the ejected gas speed is slower. In addition to being distributed on the static grinding disc 37, it is also distributed on the installation cavity of the dynamic grinding disc 36, which mainly plays the role of shaping the airflow field, and is used to guide the gas in the grinding chamber to flow in the designed direction. These gases are mixed with solid particles with suitable particles, and after passing through the cyclone dust collector 5, they fall into the sample collector 7.

[0060] Furthermore, negative ion generators are fixedly arranged on the front and rear sides of the pulverizing shell 4, and one end of the two negative ion generators extends to the interior of the pulverizing shell 4, a filter bag is arranged inside the filter box 6, and a filter bag vibrator and a high-pressure back-blowing port are also arranged inside the filter box 6. The filter bag vibrator cooperates with the vibrator to spray high-pressure gas at a certain frequency during the vibration process and at a certain time point after the vibration ends. The impact force of the airflow is used to separate part of the dust from the filter bag, and the negative ion generator is used to neutralize the static electricity generated during the grinding process to avoid material loss due to electrostatic adsorption; at the same time, the static electricity in the filter bag can also be neutralized to reduce material loss due to electrostatic adsorption.

[0061] Embodiment 5:

[0062] See also Figures 1 to 12 As shown, specifically, a multi-stage continuous crushing method for materials includes the following steps:

[0063] Step 1, feed the material into the crushing box 1 through the feed hopper 2, at this time, the movable crushing plate 13 drives the flywheel 9 to rotate through the output shaft of the driving motor 8, and the flywheel 9 drives the driving cam 11 to rotate inside the rotating sleeve 12 through the driving shaft 10, and the helical teeth on one side of the driving cam 11 arranged on the driving shaft 10 cooperate and slide with the helical tooth grooves on the inner wall of the rotating sleeve 12, so that the rotating sleeve 12 rotates synchronously with the driving cam 11, and the movable crushing plate 13 is driven to rotate synchronously by the rotating sleeve 12, and one side of the movable crushing plate 13 is used to drive the material to move to one side of the fixed crushing plate 14, and the left side of the movable crushing plate 13 and the right side of the fixed crushing plate 14 are used for preliminary crushing processing, as the driving cam 11 continues to rotate, the helical teeth on one side of the driving cam 11 are disengaged from the helical tooth grooves, and the movable crushing plate 13 is rotated and reset under the action of the torsion spring, and the material is continued to be transported to the inside of the crushing box 1 through the feed hopper 2;

[0064] Step 2: When automatically retaining samples of the initially crushed materials, the driving end of the servo electric cylinder 2 30 is extended at a certain frequency, and the driving end of the servo electric cylinder 2 30 is used to control the movable connecting rod 31 to rotate, thereby controlling the tipping frame 28 to swing left and right inside the drop hopper 3. When the upper side of the tipping frame 28 contacts the left side of the inner wall of the drop hopper 3, the inside of the drop hopper 3 is connected with the inside of the sample box 33 through the sample opening 32, and the initially crushed materials entering the drop hopper 3 enter the inside of the sample box 33 along the tipping frame 28 and the sample opening 32;

[0065] Step 3: After the preliminary crushing, the material enters the interior of the crushing shell 4 through the drop hopper 3, and the output shaft of the crushing reduction motor 35 controls the dynamic grinding disc 36 to rotate on the right side of the static grinding disc 37, so as to crush the preliminary crushed material. Finally, the crushed material enters the interior of the sample collector 7 along the discharge pipe 39.

[0066] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage continuous crushing method for materials, characterized in that: The specific steps include: Step 1: Feed the material into the crushing box (1) through the feed hopper (2). At this time, the movable crushing plate (13) drives the flywheel (9) to rotate through the output shaft of the driving motor (8). The flywheel (9) drives the driving cam (11) to rotate inside the rotating sleeve (12) through the driving shaft (10). The helical teeth on one side of the driving cam (11) provided on the driving shaft (10) and the helical teeth on the inner wall of the rotating sleeve (12) are matched and slid, so that the rotating sleeve (12) rotates synchronously with the driving cam (11). 2) driving the movable crushing plate (13) to rotate synchronously, using one side of the movable crushing plate (13) to drive the material to move to one side of the fixed crushing plate (14), using the left side of the movable crushing plate (13) and the right side of the fixed crushing plate (14) to perform preliminary crushing processing, and as the driving cam (11) continues to rotate, the helical teeth on one side of the driving cam (11) are disengaged from the helical tooth grooves, and the movable crushing plate (13) is rotated and reset under the action of the torsion spring, and the material is continuously transported to the inside of the crushing box (1) through the feed hopper (2); Step 2: When automatically retaining samples of the initially crushed material, the driving end of the servo electric cylinder 2 (30) is extended at a certain frequency, and the driving end of the servo electric cylinder 2 (30) is used to control the movable connecting rod (31) to rotate, thereby controlling the tipping frame (28) to swing left and right inside the drop hopper (3). When the upper side of the tipping frame (28) contacts the left side of the inner wall of the drop hopper (3), the inside of the drop hopper (3) is connected to the inside of the sample retaining box (33) through the sample retaining port (32), and the initially crushed material entering the drop hopper (3) enters the inside of the sample retaining box (33) along the tipping frame (28) and the sample retaining port (32); Step 3: After the preliminary crushing, the material enters the interior of the crushing shell (4) through the drop hopper (3), and the output shaft of the crushing reduction motor (35) is used to control the dynamic grinding disc (36) to rotate on the right side of the static grinding disc (37), so as to crush the preliminary crushed material. Finally, the crushed material enters the interior of the sample collector (7) along the discharge pipe (39); A crushing mechanism is arranged inside the crushing box (1), and the crushing mechanism comprises a movable crushing plate (13) and a fixed crushing plate (14). The fixed crushing plate (14) is rotatably arranged on the left side inside the crushing box (1), and the top of the fixed crushing plate (14) is rotatably connected to the inner wall of the crushing box (1). The movable crushing plate (13) is also rotatably arranged on the right side inside the crushing box (1). A rotating sleeve (12) is rotatably arranged on the right side of the top of the crushing box (1), and the bottom of the rotating sleeve (12) is rotatably connected to the inner wall of the movable crushing plate (13). The crushing box (1) is fixedly connected to the top, a flywheel (9) is rotatably arranged on the back of the crushing box (1), and a drive motor (8) is fixedly arranged on the right side of the crushing box (1), the output shaft of the drive motor (8) is connected to the surface of the flywheel (9) through a belt transmission, a drive shaft (10) is fixedly arranged inside the flywheel (9), one end of the drive shaft (10) extends to the inside of the rotating sleeve (12), and the inside of the rotating sleeve (12) is movably connected to one end of the drive shaft (10) through a torsion spring, and one end of the drive shaft (10) is fixedly arranged A driving cam (11) is provided, and one side of the driving cam (11) is provided with helical teeth, the inner wall of the rotating sleeve (12) is provided with helical tooth grooves, and the helical tooth grooves occupy one sixth of the circumference of the inner wall of the rotating sleeve (12), an adjusting motor (16) and an arc-shaped positioning frame (17) are fixedly provided below the front of the crushing box (1), and an adjusting cam (15) is rotatably provided on the left side inside the crushing box (1), one end of the output shaft of the adjusting motor (16) is fixedly connected to one end of the adjusting cam (15), and the right side of the adjusting cam (15) is fixedly connected to the output shaft of the adjusting motor (16). The side of the adjusting motor (16) is in active contact with the left side of the fixed crushing plate (14); a connecting frame (18) is fixedly provided on the output shaft surface of the adjusting motor (16); one side of the connecting frame (18) is slidably connected to the inside of the arc-shaped positioning frame (17); a positioning electric cylinder (19) is fixedly provided on the top of the connecting frame (18); a positioning pin is fixedly provided on the driving end of the positioning electric cylinder (19); a plurality of positioning pin holes (20) are provided inside the arc-shaped positioning frame (17); one end of the positioning pin is movably connected to the inside of the positioning pin hole (20); A limit frame (21) is fixedly arranged on the right side of the crushing box (1), and a movable plate (22) is rotatably arranged on the left side of the limit frame (21) through a connecting block. The left side of the movable plate (22) is rotatably connected to the lower side of the right side of the movable crushing plate (13) through the connecting block. A movable tooth plate (23) is slidably arranged inside the limit frame (21), and one side of the movable tooth plate (23) is fixedly connected to the connecting block on the right side. A rotating rod (24) is rotatably arranged on the right side of the crushing box (1), and a matching gear (25) is fixedly arranged on the surface of the rotating rod (24). The surface of the matching gear (25) is meshed with the surface of the movable tooth plate (23) for transmission.

2. A material multi-stage continuous crushing device applied to the material multi-stage continuous crushing method according to claim 1, characterized in that: The invention comprises a crushing box (1) and a pulverizing shell (4), wherein a feed hopper (2) is fixedly arranged on the left side of the top of the crushing box (1), and the interior of the feed hopper (2) is connected to the interior of the crushing box (1); a drop hopper (3) is fixedly arranged at the bottom of the crushing box (1), and a pulverizing shell (4) is also fixedly arranged at the bottom of the drop hopper (3); the interior of the drop hopper (3) is respectively connected to the interiors of the crushing box (1) and the pulverizing shell (4); a discharge pipe (39) is fixedly arranged at the bottom of the pulverizing shell (4), and a sample collector (7) is fixedly arranged at the bottom of the discharge pipe (39); a cyclone dust collector (5) is fixedly arranged on the top of the sample collector (7), and a filter box (6) is also fixedly arranged on the top of the cyclone dust collector (5).

3. A multi-stage continuous material crushing device according to claim 2, characterized in that: A dust exhaust pipe (40) is fixedly provided on one side of the cyclone dust collector (5), and dust suction pipes (41) are fixedly provided at the upper and lower parts of the dust exhaust pipe (40), respectively; one end of the two dust suction pipes (41) are respectively connected to the inside of the crushing box (1) and the crushing shell (4), and one end of the dust exhaust pipe (40) is connected to the inside of the cyclone dust collector (5).

4. A multi-stage continuous material crushing device according to claim 2, characterized in that: A cleaning knife (27) is movably provided on one side of the fixed crushing plate (14) and the movable crushing plate (13), and a servo electric cylinder (26) is fixedly provided on both sides of the top of the crushing box (1), and the driving ends of the two servo electric cylinders (26) are respectively fixedly connected to the tops of the two cleaning knives (27).

5. The multi-stage continuous crushing device for materials according to claim 2 is characterized in that: The inside of the drop hopper (3) is also provided with an automatic sample retaining assembly, and the automatic sample retaining assembly includes a flipping frame (28) and a servo electric cylinder 2 (30). The inside of the drop hopper (3) is rotatably provided with a flipping frame (28) and a connecting rod (29), and one end of the connecting rod (29) is fixedly connected to the lower part of the inside of the flipping frame (28). One end of the connecting rod (29) extends to the outside of the drop hopper (3), and one end of the connecting rod (29) is also fixedly provided with a movable connecting rod (31). One side of the drop hopper (3) is fixedly provided with a servo electric cylinder 2 (30), and the driving end of the servo electric cylinder 2 (30) is rotatably connected to one end of the movable connecting rod (31). A sample retaining port (32) is also provided on one side of the bottom of the drop hopper (3), and a sample retaining box (33) is provided at the bottom of the sample retaining port (32).

6. A multi-stage continuous material crushing device according to claim 2, characterized in that: A pulverizing mechanism is arranged inside the pulverizing shell (4), and the pulverizing mechanism comprises a dynamic grinding disc (36) and a static grinding disc (37). A mounting seat (34) is fixedly arranged on one side of the pulverizing shell (4), and a pulverizing reduction motor (35) is fixedly arranged on the top of the mounting seat (34). A static grinding disc (37) is arranged on the left side of the pulverizing shell (4), and a dynamic grinding disc (36) is also arranged on the right side of the pulverizing shell (4). The left side of the dynamic grinding disc (36) is rotatably connected to the right side of the static grinding disc (37), and the right side of the dynamic grinding disc (36) is fixedly connected to the output shaft of the pulverizing reduction motor (35).

7. A multi-stage continuous material crushing device according to claim 6, characterized in that: An adjusting knob (38) is rotatably provided on one side of the pulverizing shell (4), and the right end of the adjusting knob (38) is rotatably connected to the left side of the static grinding disc (37). A feed port is provided on the top of the static grinding disc (37), and a cooling pipe (42) is provided inside the static grinding disc (37).

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