Stone processing high-pressure roller mill with adjustable compression roller distance

Abstract

The invention relates to the technical field of roller mills, and particularly discloses a high-pressure roller mill with adjustable compression roller distance for stone processing, which comprises a roller mill body, a flow stabilizing bin is fixedly mounted on the roller mill body, a material homogenizing bin is fixedly mounted at the top of the flow stabilizing bin, and a mounting frame is fixedly mounted at the top of the material homogenizing bin; a feeding bin is fixedly mounted in the mounting frame, a middle bin is fixedly mounted at the bottom of the feeding bin, a stone pretreatment mechanism comprising an impact sleeve and a screening plate is arranged between the feeding bin and the middle bin, and a material guide mechanism comprising a feeding guide plate and a guide plate is arranged between the feeding bin and the middle bin. A material distribution mechanism comprising a flow guide plate is arranged on the lower side of the middle bin; by arranging the material distributing mechanism, after stone is pretreated, the stone enters the flow stabilizing bin through the material uniformizing bin, the stone can be evenly distributed in the axial direction when passing through the material uniformizing bin, and the situation that materials are separated in the flow stabilizing bin is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of roller mills, and particularly to a high-pressure roller mill for stone processing with adjustable pressure roller distance. Background Art

[0002] A high-pressure roller mill is an efficient crushing device widely used in industries such as mining, cement, and metallurgy. The high-pressure roller mill mainly applies high pressure to the materials entering between the rollers through two oppositely rotating rollers, so that the materials are extruded and crushed under the action of high pressure;

[0003] When using a high-pressure roller mill to process stones, the stones are transported to the high-pressure roller mill through a conveyor belt. The high-pressure roller mill uses the rotation cooperation of a fixed roller and a moving roller to extrude and crush the stones. Since there is usually a certain gap in the particle size range of the stones input into the high-pressure roller mill, and some stones may agglomerate due to environmental humidity and other reasons during the transportation process. Directly inputting larger stones and some agglomerated stones into the high-pressure roller mill for processing may cause abnormal vibration during the processing of the high-pressure roller mill. At the same time, long-term crushing of stones with a large particle size difference may aggravate the uneven wear of components such as roller skins. At the same time, due to the uneven thickness of the stones, when the stones are transported downward through the conveyor belt into the steady flow bin, there is a certain gap in the particle size of the stones. When the stones are scattered into the steady flow bin, the coarse materials tend to move forward and downward, resulting in segregation of the stones when entering the steady flow bin. And the material distribution segregation will cause uneven wear of the roller surface of the high-pressure roller mill, and at the same time reduce the crushing efficiency and affect the stability of the machine body during processing. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a high-pressure roller mill for stone processing with adjustable pressure roller distance.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-pressure roller mill for stone processing with adjustable pressure roller distance, including a roller mill body. A steady flow bin is fixedly installed on the roller mill body. A material equalizing bin is fixedly installed on the top of the steady flow bin. A mounting frame is fixedly installed on the top of the material equalizing bin. A feed bin is fixedly installed inside the mounting frame. An intermediate bin is fixedly installed at the bottom of the feed bin. A stone pretreatment mechanism including an impact sleeve and a screening plate is provided between the feed bin and the intermediate bin. A material guiding mechanism including a feed guiding plate and a guiding plate is provided between the feed bin and the intermediate bin. A material distributing mechanism including a diversion plate is provided on the lower side of the intermediate bin;

[0007] The impact sleeve is movably installed inside the intermediate bin, the screening plate is fixedly installed at the bottom of the intermediate bin, a cavity is formed in the screening plate, an adjustable sieve plate is movably installed inside the cavity, a synchronous shaft is rotatably installed inside the screening plate, two groups of feeding plates are fixedly installed on the synchronous shaft, and a vibration motor is fixedly installed on the screening plate.

[0008] The feeding guide plate is slidably installed inside the feeding bin, the guiding plate is fixedly installed inside the intermediate bin, an adjustable feeding plate is slidably installed on the synchronous shaft, and a closing plug plate is slidably installed on the synchronous shaft.

[0009] The guiding plate is rotatably installed inside the material leveling bin, there are five groups of guiding plates, a mounting seat is fixedly installed at the bottom of the material guiding frame plate, and a material level detector is fixedly installed on the lower side of the mounting seat.

[0010] Preferably, a fixed roll frame is fixedly installed on the roller mill body, a fixed roll is rotatably installed on the fixed roll frame, a movable roll frame is movably installed on the roller mill body, a hydraulic cylinder is fixedly installed on the roller mill body, and a movable roll is rotatably installed on the movable roll frame.

[0011] Preferably, the stone pretreatment mechanism further includes a mounting sleeve, the mounting sleeve is fixedly installed inside the feeding bin, a universal ball seat is movably installed inside the mounting sleeve, and the universal ball seat is fixedly connected to the impact sleeve.

[0012] Preferably, the stone pretreatment mechanism further includes a transverse moving abutting plate, four groups of transverse moving abutting plates are slidably installed at the bottom of the impact sleeve, a cam plate is rotatably installed inside the impact sleeve, and the top of the synchronous shaft is fixedly connected to the bottom of the cam plate.

[0013] Preferably, the stone pretreatment mechanism further includes an inner cylinder, the inner cylinder is fixedly installed inside the impact sleeve, a lifting seat is slidably installed on the inner cylinder, a driving arm is rotatably installed on the lifting seat, and one end of the driving arm is rotatably connected to the transverse moving abutting plate.

[0014] Preferably, the stone pretreatment mechanism further includes a rack, the rack is fixedly installed on the adjustable sieve plate, a movable gear is rotatably installed on one side of the screening plate, the movable gear meshes with the rack, and a material guiding frame plate is fixedly installed at the bottom of the screening plate.

[0015] Preferably, the cloth feeding mechanism further includes a driving shaft, the driving shaft is rotatably installed on the mounting seat, the driving shaft is fixedly connected to the synchronous shaft, two groups of driving gears are rotatably installed on the mounting seat, the two groups of driving gears mesh with each other, and one of the driving gears is fixedly connected to the driving shaft.

[0016] Preferably, the cloth feeding mechanism further includes a bevel gear one, the bevel gear one is fixedly installed at the bottom of the other driving gear, a bevel gear two is rotatably installed on one side of the bevel gear one, and the bevel gear two meshes with the bevel gear one.

[0017] Preferably, the cloth feeding mechanism further includes a connecting shaft fixedly installed on the second bevel gear. A synchronous seat is fixedly installed on the connecting shaft. A transverse moving frame is slidably installed on one side of the second bevel gear, and the transverse moving frame is movably connected to the synchronous seat.

[0018] Preferably, the cloth feeding mechanism further includes a driving toothed plate fixedly installed at the bottom of the transverse moving frame. The driving toothed plate is slidably installed on the material equalizing bin. A mounting shaft is fixedly installed on the diversion plate. One end of the mounting shaft is fixedly installed with a driven gear, and the driven gear is rotatably installed on the material equalizing bin. The driven gear meshes with the driving toothed plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] By providing a stone pre-treatment mechanism, before the stone enters the roller mill body for crushing, it enters the inside of the feed bin and the intermediate bin. The stone pre-treatment mechanism can perform pre-treatment operations on the stone entering the inside of the feed bin and the intermediate bin, ensuring the uniformity of the particle size of the stone entering the roller mill body for crushing, and avoiding the problem that the large difference in stone particle size affects the crushing effect of the stone. During the crushing process of the stone, by detecting the thickness of the material layer on the upper side of the fixed roller and the moving roller, and through the cooperation of the material guiding mechanism, corresponding adjustments are made to the feeding of the stone, improving the crushing effect and crushing safety. At the same time, by providing a cloth feeding mechanism, after the stone is pre-treated, the stone enters the inside of the steady flow bin through the material equalizing bin. When the stone passes through the material equalizing bin, uniform cloth feeding in the axial direction can be realized, avoiding the occurrence of material segregation inside the steady flow bin.

[0021] By providing a stone pre-treatment mechanism, before the stone enters the roller mill body for crushing and processing, it enters the inside of the intermediate bin through the feed bin. The cam plate inside the intermediate bin rotates and regularly squeezes to drive the four transverse moving abutting plates to rotate, driving the impact sleeve to shake inside the intermediate bin. When the impact sleeve shakes, it can perform pre-dispersing and breaking treatment on the agglomerated stone and some larger stones, avoiding the problem that the agglomerated stone or larger stones enter the roller mill body and affect the processing. By adjusting the position of the transverse moving abutting plate, the distance between the impact sleeve and the inner wall of the intermediate bin when the impact sleeve shakes can be changed to adjust the particle size range of the pre-dispersed and broken stone. The stone after pre-dispersed and broken enters the inside of the screening plate. Through the vibration of the screening plate and the material spreading plate to spread and equalize the stone, pre-screening of the stone is realized, avoiding larger particle size stones from entering the roller mill body. The stones that do not meet the particle size range left after screening are discharged through the guide frame plate to the external return pipeline for subsequent secondary treatment. During the stone processing, by performing pre-treatment operations on the stone, the particle size of the stone entering the roller mill body meets the processing requirements, improving the processing effect of the stone and ensuring the stability of the equipment operation.

[0022] In the present invention, a material guiding mechanism is provided. Before the stone enters the interior of the roller mill body for processing, it enters the intermediate bin through the feeding bin for pretreatment and then falls onto the screening plate for screening. When the stone passes through the interior of the feeding bin, the position of the feeding guide plate is adjusted to adjust the feeding flow rate according to the thickness of the material layer during the processing. When the stone is being processed, the guiding plate and the adjusting plate guide the pre-dispersed and crushed stone. The pretreated stone enters the screening plate for screening. The large stones that do not meet the particle size range after screening remain on the screening plate. By adjusting the closed plug plate to open the return material opening, the large stones can enter the peripheral return material pipeline through the guiding frame plate for subsequent processing. When the load inside the roller mill body exceeds the safe range, by controlling the feeding guide plate, the adjusting plate, and the closed plug plate to make corresponding adjustments, the stones that continue to be fed during an accident can be redirected to avoid the problem that the continuous entry of stones into the roller mill body increases the load inside the roller mill body and affects the safe operation of the equipment.

[0023] In the present invention, a cloth feeding mechanism is provided. After the stone enters the intermediate bin for pretreatment and then enters the screening plate for screening, the stones that meet the particle size range enter the roller mill body for crushing treatment. When the stone enters the intermediate bin, the driving gear is driven by the motor to rotate, and the driving shaft is driven to drive the synchronous shaft to rotate synchronously. Cooperating with the cam plate and the transverse moving abutting plate, the impact sleeve can be driven to move synchronously to pretreat the stone. Synchronously, the synchronous shaft rotates to drive the feeding plate to move synchronously to assist in screening the stone by realizing the even material operation of the stone after pretreatment. Synchronously, when the driving gear rotates to drive the driving shaft to rotate synchronously, the regular forward and reverse rotation of the deflector plate inside the even material bin can be realized through the cooperation of the bevel gear one, the bevel gear two, the connecting shaft, the synchronous seat, the transverse moving frame, the driving toothed plate, and the driven gear. When the deflector plate rotates, it can guide the stone before the stone enters the steady flow bin after screening. Through the regular rotation of the deflector plate, the diversion of the stone can be realized to ensure that the stone is evenly distributed along the axial direction of the roller mill in the steady flow bin, and to avoid the situation of material segregation when the stone is fed into the interior of the steady flow bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a high-pressure roller mill for processing stones with adjustable pressure roller distance proposed by the present invention;

[0025] Figure 2 It is an installation schematic diagram of the fixed roller and the moving roller in a high-pressure roller mill for processing stones with adjustable pressure roller distance proposed by the present invention;

[0026] Figure 3 It is an installation schematic diagram of the cloth feeding mechanism in a high-pressure roller mill for processing stones with adjustable pressure roller distance proposed by the present invention;

[0027] Figure 4 Schematic diagram of the installation of the material guiding frame plate in a high-pressure roller mill for stone processing with adjustable roller distance proposed by the present invention;

[0028] Figure 5 Schematic diagram of the structure of the stone pretreatment mechanism in a high-pressure roller mill for stone processing with adjustable roller distance proposed by the present invention;

[0029] Figure 6 Schematic diagram of the installation of the adjusting sieve plate in a high-pressure roller mill for stone processing with adjustable roller distance proposed by the present invention;

[0030] Figure 7 Schematic diagram of the structure of the feeding mechanism in a high-pressure roller mill for stone processing with adjustable roller distance proposed by the present invention.

[0031] In the figure: 1. Roller mill body; 11. Fixed roller frame; 111. Fixed roller; 12. Movable roller frame; 121. Movable roller; 13. Hydraulic cylinder; 14. Steady flow bin; 15. Equalizing bin; 2. Mounting frame; 3. Feed bin; 31. Feed guide plate; 32. Mounting sleeve; 33. Universal ball seat; 4. Intermediate bin; 41. Impact sleeve; 411. Inner cylinder; 412. Lifting seat; 413. Driving arm; 414. Transverse moving abutting plate; 415. Cam plate; 42. Guide plate; 5. Screening plate; 51. Material guiding frame plate; 52. Vibration motor; 53. Adjusting sieve plate; 54. Rack; 55. Movable gear; 6. Mounting seat; 61. Driving gear; 611. Driving shaft; 62. Bevel gear one; 63. Bevel gear two; 631. Connecting shaft; 632. Synchronous seat; 633. Transverse moving frame; 634. Driving rack; 635. Driven gear; 64. Mounting shaft; 65. Deflector; 66. Material level detector; 7. Synchronous shaft; 71. Adjusting material plate; 72. Sealing plug plate; 73. Material deflecting plate. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Refer to Figure 1-7, a high-pressure roller mill for stone processing with adjustable roller distance, comprising a roller mill body 1. A fixed roller frame 11 is fixedly installed on the roller mill body 1. A fixed roller 111 is rotatably installed on the fixed roller frame 11. The fixed roller 111 is driven by an external motor. A movable roller frame 12 is movably installed on the roller mill body 1. A hydraulic cylinder 13 is fixedly installed on the roller mill body 1. The telescopic end of the hydraulic cylinder 13 is fixedly connected to the movable roller frame 12. A movable roller 121 is rotatably installed on the movable roller frame 12. By controlling the hydraulic cylinder 13 to drive the movable roller frame 12 for adjustment, the distance between the movable roller 121 and the fixed roller 111 can be adjusted. A steady flow bin 14 is fixedly installed on the roller mill body 1. Two groups of regulating plates are symmetrically and movably installed inside the steady flow bin 14. A material equalizing bin 15 is fixedly installed on the top of the steady flow bin 14. An installation frame 2 is fixedly installed on the top of the material equalizing bin 15. An inlet bin 3 is fixedly installed inside the installation frame 2. A middle bin 4 is fixedly installed at the bottom of the inlet bin 3. A stone pretreatment mechanism is arranged between the inlet bin 3 and the middle bin 4. The stone pretreatment mechanism can perform pretreatment operations on the stones before the stones enter the inside of the roller mill body 1 for crushing. A guiding mechanism is arranged between the inlet bin 3 and the middle bin 4. During the crushing process of the stones, the thickness of the material layer on the fixed roller 111 and the movable roller 121 is monitored in real time, and corresponding adjustments are made according to the thickness of the material layer. A cloth-feeding mechanism is arranged on the lower side of the middle bin 4. The cloth-feeding mechanism can ensure uniform axial cloth-feeding of the stones and avoid the occurrence of stone segregation inside the steady flow bin 14; by setting a stone pretreatment mechanism, before the stones enter the roller mill body 1 for crushing, they enter the inside of the inlet bin 3 and the middle bin 4. The stone pretreatment mechanism can perform pretreatment operations on the stones entering the inside of the inlet bin 3 and the middle bin 4, ensuring the uniformity of the particle size of the stones entering the inside of the roller mill body 1 for crushing and avoiding the large difference in stone particle size affecting the crushing effect of the stones. During the crushing process of the stones, through the detection of the thickness of the material layer on the upper side of the fixed roller 111 and the movable roller 121, corresponding adjustments are made to the feeding of the stones through the cooperation of the guiding mechanism, improving the crushing effect and crushing safety. At the same time, by setting a cloth-feeding mechanism, after the pretreatment operation on the stones, the stones enter the inside of the steady flow bin 14 through the material equalizing bin 15. When the stones pass through the material equalizing bin 15, uniform cloth-feeding in the axial direction can be achieved, avoiding the occurrence of material segregation inside the steady flow bin 14.

[0034] As an optimized technical solution of a high-pressure roller mill for stone processing with adjustable roller distance in the present invention, the stone pretreatment mechanism includes an impact sleeve 41. The impact sleeve 41 is movably installed inside the intermediate bin 4. The impact sleeve 41 is a frustum-shaped hollow structure. An opening is provided at the bottom of the impact sleeve 41. Protrusions are provided on the surface of the impact sleeve 41. An installation sleeve 32 is fixedly installed inside the feed bin 3. The cross-section of the installation sleeve 32 is three-quarters of a circle. The installation sleeve 32 is a hollow structure. A universal ball seat 33 is movably installed inside the installation sleeve 32. The universal ball seat 33 is a spherical structure. The universal ball seat 33 is fixedly connected to the impact sleeve 41. Four groups of transverse moving abutting plates 414 are slidably installed at the bottom of the impact sleeve 41. An inner cylinder 411 is fixedly installed inside the impact sleeve 41. A lifting seat 412 is slidably installed on the inner cylinder 411. A hydraulic telescopic rod is fixedly installed inside the inner cylinder 411. The telescopic end of the hydraulic telescopic rod is fixedly connected to the lifting seat 412. The hydraulic telescopic rod is electrically connected to an external controller. A driving arm 413 is rotatably installed on the lifting seat 412. One end of the driving arm 413 is rotatably connected to the transverse moving abutting plate 414. A cam plate 415 is rotatably installed inside the impact sleeve 41. When the cam plate 415 rotates, it can contact and squeeze the four groups of transverse moving abutting plates 414 to drive the transverse moving abutting plates 414 to move. A screening plate 5 is fixedly installed at the bottom of the intermediate bin 4. A cavity is provided on the screening plate 5. An adjusting screen plate 53 is movably installed inside the cavity. When the adjusting screen plate 53 rotates, the coincidence degree of the screen holes on it and the screen holes on the screening plate 5 can be adjusted. By adjusting the position of the adjusting screen plate 53, the coincidence degree of the screen holes on the guiding frame plate 51 and the adjusting screen plate 53 is adjusted to adjust the particle size range of the screened stones. A rack 54 is fixedly installed on the adjusting screen plate 53. A movable gear 55 is rotatably installed on one side of the screening plate 5. The movable gear 55 meshes with the rack 54. The movable gear 55 is driven by a servo motor. The output shaft of the servo motor is fixedly connected to the movable gear 55. The servo motor is electrically connected to an external controller. The servo motor is fixedly installed on the outer wall of the screening plate 5. A guiding frame plate 51 is fixedly installed at the bottom of the screening plate 5. The guiding frame plate 51 is inclined downward. The guiding frame plate 51 is connected to an external return material pipeline. No screen holes are provided on the screening plate 5 corresponding to the guiding frame plate 51. A vibration motor 52 is fixedly installed on the screening plate 5. The vibration motor 52 is electrically connected to an external controller. A synchronous shaft 7 is rotatably installed inside the screening plate 5. The synchronous shaft 7 extends downward to a position below the guiding frame plate 51. The top of the synchronous shaft 7 is fixedly connected to the bottom of the cam plate 415. Two groups of material spreading plates 73 are fixedly installed on the synchronous shaft 7. When the synchronous shaft 7 rotates to drive the material spreading plates 73 to rotate synchronously, the stones can be spread out and evenly distributed;By setting up a stone pre-treatment mechanism, before the stone enters the inside of the roller mill body 1 for crushing processing, it enters the inside of the intermediate bin 4 through the feed bin 3. The cam plate 415 inside the intermediate bin 4 rotates and regularly squeezes to drive the rotation of the four groups of transverse abutting plates 414 to drive the impact sleeve 41 to shake inside the intermediate bin 4. When the impact sleeve 41 shakes, it can perform pre-dispersion and cracking treatment on the agglomerated stones and some larger stones, avoiding the problem that the agglomerated stones or larger stones enter the inside of the roller mill body 1 and affect the processing. By adjusting the position of the transverse abutting plate 414, the distance between the impact sleeve 41 and the inner wall of the intermediate bin 4 when shaking can be changed to adjust the particle size range of the pre-dispersed and crushed stones. The stones after pre-dispersion and crushing enter the inside of the screening plate 5. Through the vibration of the screening plate 5 and the material guiding plate 73, the stones are spread out and equalized to achieve pre-screening of the stones, avoiding larger particle size stones from entering the inside of the roller mill body 1. The stones that do not meet the particle size range left after screening are discharged through the guide frame plate 51 to the external return pipeline for subsequent secondary treatment. During the stone processing, by performing pre-treatment operations on the stones, it is ensured that the particle size of the stones entering the inside of the roller mill body 1 meets the processing requirements, improving the processing effect of the stones and ensuring the stability of the equipment operation.

[0035] As an optimized technical solution of a high-pressure roller mill for stone processing with adjustable roller distance in the present invention, the material guiding mechanism includes a feeding guide plate 31 which is slidably installed inside the feeding bin 3. The feeding guide plate 31 is a frustum-shaped ring structure. A hydraulic telescopic rod is fixedly installed inside the feeding bin 3, and the telescopic end of the hydraulic telescopic rod is fixedly connected to the feeding guide plate 31. When the feeding guide plate 31 is adjusted downward to the lowest limit position, it can contact the outer wall of the feeding guide plate 31. At this time, the feeding port of the feeding bin 3 is closed, and stones cannot continue to enter the inside of the feeding bin 3. A guiding plate 42 is fixedly installed inside the intermediate bin 4, and the guiding plate 42 is a frustum-shaped ring structure. An adjusting material plate 71 is slidably installed on the synchronous shaft 7, and the adjusting material plate 71 is a frustum-shaped ring structure. A closing plug plate 72 is slidably installed on the synchronous shaft 7, and the closing plug plate 72 is a frustum-shaped ring structure. When the closing plug plate 72 is adjusted downward to the lowest limit position, it can contact the inner wall of the material guiding frame plate 51 to block the feeding port of the material guiding frame plate 51. A hydraulic telescopic rod is fixedly installed inside the synchronous shaft 7, and the telescopic end of the hydraulic telescopic rod is fixedly connected to the inner walls of the adjusting material plate 71 and the closing plug plate 72 through sliders. The hydraulic telescopic rod can drive the adjusting material plate 71 and the closing plug plate 72 to slide up and down. By providing the material guiding mechanism, before the stones enter the inside of the roller mill body 1 for processing, they pass through the feeding bin 3 and then enter the intermediate bin 4 for pretreatment and then fall onto the screening plate 5 for screening. When the stones pass through the inside of the feeding bin 3, the position of the feeding guide plate 31 is adjusted to adjust the feeding flow according to the thickness of the material layer during the processing. When the stones are being processed, the guiding plate 42 and the adjusting material plate 71 guide the pre-dispersed and crushed stones. The pretreated stones enter the screening plate 5 for screening. The large stones that do not meet the particle size range after screening remain on the screening plate 5. By adjusting the closing plug plate 72 to open the return material port, the large stones can enter the external return pipeline through the material guiding frame plate 51 for subsequent processing. When the load inside the roller mill body 1 exceeds the safe range, by controlling the feeding guide plate 31, the adjusting material plate 71, and the closing plug plate 72 to make corresponding adjustments, the stones that continue to be fed during an accident can be diverted to avoid the problem that the stones continue to enter the inside of the roller mill body 1, causing the load inside the roller mill body 1 to increase and affecting the safe operation of the equipment.

[0036] As an optimized technical solution of a high-pressure roller mill for stone processing with adjustable roller distance in the present invention, the feeding mechanism includes a mounting base 6, the mounting base 6 is fixedly installed at the bottom of the material guiding frame plate 51, a driving shaft 611 is rotatably installed on the mounting base 6, the driving shaft 611 is fixedly connected with the synchronizing shaft 7, two groups of driving gears 61 are rotatably installed on the mounting base 6, the two groups of driving gears 61 are meshed with each other, one of the driving gears 61 is fixedly connected with the driving shaft 611, a motor is fixedly installed on the mounting base 6, the output shaft of the motor is fixedly connected with the driving gear 61, the motor is electrically connected with an external controller, a material level detector 66 is fixedly installed on the lower side of the mounting base 6, the material level detector 66 is electrically connected with the external controller, a first bevel gear 62 is fixedly installed at the bottom of the other driving gear 61, a second bevel gear 63 is rotatably installed on one side of the first bevel gear 62, the second bevel gear 63 is meshed with the first bevel gear 62, a connecting shaft 631 is fixedly installed on the second bevel gear 63, a synchronizing seat 632 is fixedly installed on the connecting shaft 631, a transverse moving frame 633 is slidably installed on one side of the second bevel gear 63, the transverse moving frame 633 is movably connected with the synchronizing seat 632, when the connecting shaft 631 rotates, it can drive the synchronizing seat 632 to rotate synchronously, when the synchronizing seat 632 rotates, it can drive the transverse moving frame 633 to translate and slide, a driving toothed plate 634 is fixedly installed at the bottom of the transverse moving frame 633, the driving toothed plate 634 is slidably installed on the material equalizing bin 15, five groups of diversion plates 65 are rotatably installed inside the material equalizing bin 15, a mounting shaft 64 is fixedly installed on the diversion plate 65, a driven gear 635 is fixedly installed at one end of the mounting shaft 64, the driven gear 635 is rotatably installed on the material equalizing bin 15, the driven gear 635 is meshed with the driving toothed plate 634; by providing the feeding mechanism, after the stones enter the intermediate bin 4 for pretreatment and then enter the screening plate 5 for screening, the stones within the particle size range enter the roller mill body 1 for crushing treatment. When the stones enter the intermediate bin 4, the motor drives the driving gear 61 to rotate and drives the driving shaft 611 to drive the synchronizing shaft 7 to rotate synchronously, and in cooperation with the cam plate 415 and the transverse moving abutting plate 414, it can drive the impact sleeve 41 to move synchronously to perform pretreatment on the stones. Synchronously, the synchronizing shaft 7 rotates to drive the material distributing plate 73 to move synchronously to assist in screening the stones by realizing the material equalizing operation on the stones after pretreatment. Synchronously, when the driving gear 61 rotates to drive the driving shaft 611 to rotate synchronously, through the cooperation of the first bevel gear 62, the second bevel gear 63, the connecting shaft 631, the synchronizing seat 632, the transverse moving frame 633, the driving toothed plate 634 and the driven gear 635, the diversion plate 65 can be driven to rotate regularly in the forward and reverse directions inside the material equalizing bin 15. When the diversion plate 65 rotates, it can perform a diversion operation on the stones before the stones enter the steady flow bin 14 after screening. By the regular rotation of the diversion plate 65, the diversion of the stones can be realized to ensure that the stones are evenly distributed along the axial direction of the roller mill in the steady flow bin 14, and to avoid the situation of material segregation when the stones are fed into the steady flow bin 14.

[0037] When the present invention is in use, stones are conveyed to the inside of the feed bin 3 through an external conveyor belt. After the stones enter the inside of the feed bin 3, they fall downward. By controlling the hydraulic telescopic rod to drive the feed guide plate 31 to adjust the position, the size of the feeding port of the feed bin 3 can be adjusted to change the feeding flow rate. The stones fall downward through the inside of the feed bin 3 and enter the intermediate bin 4 for pretreatment processing;

[0038] Control the motor to drive the driving gear 61 to rotate. When the driving gear 61 rotates, it drives the driving shaft 611 and the synchronizing shaft 7 to rotate synchronously. When the synchronizing shaft 7 rotates, it drives the material distributing plate 73 and the cam plate 415 to rotate synchronously. When the cam plate 415 rotates, it can contact and squeeze the four transverse moving abutting plates 414. Since the top of the impact sleeve 41 is movably installed inside the intermediate bin 4 through the mounting sleeve 32 and the universal ball seat 33, when the transverse moving abutting plate 414 is squeezed by the cam plate 415, it can drive the impact sleeve 41 to sway to one side. By sliding the four transverse moving abutting plates 414, the impact sleeve 41 can be driven to continuously sway. When the impact sleeve 41 sways, it can cooperate with the intermediate bin 4 to perform a dispersing and breaking operation on the stones that fall into the gap between the intermediate bin 4 and the impact sleeve 41. At the same time, when dispersing and breaking the stones, by controlling the hydraulic telescopic rod to drive the lifting seat 412 to lift and cooperate with the driving arm 413, the position of the transverse moving abutting plate 414 can be adjusted. By adjusting the distance between the transverse moving abutting plate 414 and the cam plate 415, the swaying amplitude of the impact sleeve 41 driven by the cam plate 415 when it rotates can be changed. When the swaying amplitude of the impact sleeve 41 changes, the size of the gap between the impact sleeve 41 and the intermediate bin 4 is correspondingly adjusted. At this time, the particle size range of the stones that can be dispersed and broken will be correspondingly adjusted;

[0039] After the stones are pre-dispersed and broken through the inside of the intermediate bin 4, they fall downward onto the screening plate 5. Since the synchronizing shaft 7 rotates to drive the cam plate 415 and the material distributing plate 73 to rotate synchronously, when the material distributing plate 73 rotates, it can perform an operation of spreading and leveling the stones that fall onto the screening plate 5. At the same time, cooperate with the vibration motor 52 to start and drive the screening plate 5 to vibrate continuously to perform a screening process on the stones that fall onto the screening plate 5. The stones that meet the set particle size range fall downward through the sieve holes on the screening plate 5 into the equalizing bin 15. On the contrary, the stones that do not meet the set particle size range remain on the screening plate 5. During the screening process, according to the actual processing situation of the stones, control the servo motor to drive the movable gear 55 to rotate and cooperate with the rack 54 to drive the adjusting sieve plate 53 to rotate. When the adjusting sieve plate 53 rotates, the coincidence degree of the sieve holes on it and the sieve holes on the screening plate 5 can be adjusted to adjust the particle size range of the screened stones;

[0040] During the pre-dispersing and screening process of the stones, the cleaning time is set. When the pre-treatment reaches the set time, the large stones left after screening on the screening plate 5 need to be processed. At this time, the hydraulic telescopic rod drives the feed guide plate 31 to descend to the set position, the feed port of the feed bin 3 is reduced, and the feed flow rate is reduced. Synchronously, the hydraulic telescopic rod is controlled to drive the adjusting plate 71 and the closing plug plate 72 to move upward, and the adjusting plate 71 moves to contact the guide plate 42. The feed port on the screening plate 5 is closed, the closing plug plate 72 is separated from the guide frame plate 51, and the feed port on the guide frame plate 51 is opened. The stones that do not meet the particle size range after screening fall downward through the bottom discharge port of the screening plate 5 onto the guide frame plate 51 and flow through the guide frame plate 51 to the external return pipe for subsequent processing;

[0041] During the processing, the driving gear 61 drives the driving shaft 611 and the synchronous shaft 7 to rotate, and the driving gear 61 can drive the bevel gear 1 62 to rotate synchronously. When the bevel gear 1 62 rotates, it can mesh with the bevel gear 2 63 and drive the bevel gear 2 63 and the connecting shaft 631 to rotate synchronously. When the connecting shaft 631 rotates, it drives the synchronous seat 632 to rotate. When the synchronous seat 632 rotates, it drives the transverse frame 633 to slide back and forth in the longitudinal direction. Synchronously, the driving tooth plate 634 slides synchronously with the transverse frame 633. When the driving tooth plate 634 slides, it meshes with the five groups of driven gears 635 and drives the guide plate 65 to reciprocate inside the equalizing bin 15. When the guide plate 65 rotates, it can guide the stones that fall into the equalizing bin 15 to be evenly distributed, ensuring that the stones entering the steady flow bin 14 are evenly distributed along the axial direction of the roller mill.

[0042] During the roller mill processing, the material layer thickness on the roller mill body 1 can be monitored in real time through the material level detector 66. The feed guide plate 31 is controlled to rise and fall according to the material layer thickness to adjust the material opening size of the feed bin 3 to change the feed flow rate, set the early warning value and safety value of the material layer thickness of the roller mill. When the material layer thickness exceeds the early warning value but does not exceed the safety value, the feed guide plate 31 is controlled to descend to reduce the size of the material opening and reduce the feed flow rate. If the material layer thickness continues to increase and exceeds the safety value, it means that the load inside the roller mill exceeds the safety range, and the external conveyor belt is controlled to stop the stone conveying. At the same time, the servo motor is controlled to drive the movable gear 55 to rotate and cooperate with the rack 54 to drive the adjusting screen plate 53 to rotate until the screen holes thereon are completely staggered with the screen holes on the screen plate 5. During this period, the stones that enter the feed bin 3 due to inertia continue to enter the intermediate bin 4 for pretreatment and processing. The stones pretreated in the intermediate bin 4 enter the screening plate 5. At this time, the hydraulic telescopic rod is controlled to drive the adjusting plate 71 and the closing plug plate 72 to rise into place. The stones slide downward and flow through the guide frame plate 51 to the external return pipe. After the roller mill resumes normal operation, subsequent processing continues.

[0043] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

[0044] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-pressure roller mill for stone processing with adjustable roller distance, comprising a roller mill body (1), wherein a steady flow bin (14) is fixedly installed on the roller mill body (1), and it is characterized in that: A material leveling bin (15) is fixedly installed at the top of the steady flow bin (14). An installation frame (2) is fixedly installed at the top of the material leveling bin (15). A feed bin (3) is fixedly installed inside the installation frame (2). A middle bin (4) is fixedly installed at the bottom of the feed bin (3). A stone pretreatment mechanism including an impact sleeve (41) and a screening plate (5) is arranged between the feed bin (3) and the middle bin (4). A material guiding mechanism including a feed guiding plate (31) and a guiding plate (42) is arranged between the feed bin (3) and the middle bin (4). A material distributing mechanism including a diversion plate (65) is arranged on the lower side of the middle bin (4). The impact sleeve (41) is movably installed inside the middle bin (4). The screening plate (5) is fixedly installed at the bottom of the middle bin (4). A cavity is formed in the screening plate (5), and an adjusting screen plate (53) is movably installed inside the cavity. A synchronous shaft (7) is rotatably installed inside the screening plate (5). Two groups of material pushing plates (73) are fixedly installed on the synchronous shaft (7). A vibration motor (52) is fixedly installed on the screening plate (5). The feed guiding plate (31) is slidably installed inside the feed bin (3). The guiding plate (42) is fixedly installed inside the middle bin (4). An adjusting material plate (71) is slidably installed on the synchronous shaft (7). A closing plug plate (72) is slidably installed on the synchronous shaft (7). The diversion plate (65) is rotatably installed inside the material leveling bin (15). There are five groups of diversion plates (65). A mounting seat (6) is fixedly installed at the bottom of the material guiding frame plate (51). A material level detector (66) is fixedly installed on the lower side of the mounting seat (6).

2. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 1, wherein: A fixed roll frame (11) is fixedly installed on the roller mill body (1). A fixed roll (111) is rotatably installed on the fixed roll frame (11). A movable roll frame (12) is movably installed on the roller mill body (1). A hydraulic cylinder (13) is fixedly installed on the roller mill body (1). A movable roll (121) is rotatably installed on the movable roll frame (12).

3. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 1, wherein: The stone pretreatment mechanism further includes a mounting sleeve (32). The mounting sleeve (32) is fixedly installed inside the feed bin (3). A universal ball seat (33) is movably installed inside the mounting sleeve (32). The universal ball seat (33) is fixedly connected to the impact sleeve (41).

4. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 1, characterized in that: The stone pretreatment mechanism further includes a transverse moving abutting plate (414). Four groups of transverse moving abutting plates (414) are slidably installed at the bottom of the impact sleeve (41). A cam plate (415) is rotatably installed inside the impact sleeve (41). The top of the synchronous shaft (7) is fixedly connected to the bottom of the cam plate (415).

5. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 4, characterized in that: The stone pretreatment mechanism further includes an inner cylinder (411). The inner cylinder (411) is fixedly installed inside the impact sleeve (41). A lifting seat (412) is slidably installed on the inner cylinder (411). A driving arm (413) is rotatably installed on the lifting seat (412). One end of the driving arm (413) is rotatably connected to the transverse moving abutting plate (414).

6. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 1, characterized in that: The stone pre-treatment mechanism further includes a rack (54), which is fixedly installed on the adjusting sieve plate (53). An active gear (55) is rotatably installed on one side of the screening plate (5). The active gear (55) meshes with the rack (54). A material guiding frame plate (51) is fixedly installed at the bottom of the screening plate (5).

7. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 1, wherein: The feeding mechanism further includes a driving shaft (611), which is rotatably installed on the mounting seat (6). The driving shaft (611) is fixedly connected to the synchronous shaft (7). Two groups of driving gears (61) are rotatably installed on the mounting seat (6). The two groups of driving gears (61) mesh with each other. One of the groups of driving gears (61) is fixedly connected to the driving shaft (611).

8. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 7, characterized in that: The feeding mechanism further includes a first bevel gear (62), which is fixedly installed at the bottom of the other group of driving gears (61). A second bevel gear (63) is rotatably installed on one side of the first bevel gear (62). The second bevel gear (63) meshes with the first bevel gear (62).

9. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 8, characterized in that: The feeding mechanism further includes a connecting shaft (631), which is fixedly installed on the second bevel gear (63). A synchronous seat (632) is fixedly installed on the connecting shaft (631). A transverse moving frame (633) is slidably installed on one side of the second bevel gear (63). The transverse moving frame (633) is movably connected to the synchronous seat (632).

10. The high-pressure roller mill for stone processing with adjustable roller distance according to claim 9, characterized in that: The feeding mechanism further includes a driving toothed plate (634), which is fixedly installed at the bottom of the transverse moving frame (633). The driving toothed plate (634) is slidably installed on the material equalizing bin (15). A mounting shaft (64) is fixedly installed on the diversion plate (65). One end of the mounting shaft (64) is fixedly installed with a driven gear (635). The driven gear (635) is rotatably installed on the material equalizing bin (15). The driven gear (635) meshes with the driving toothed plate (634).

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