CN116213080A - Multistage solid particle crushing and separating device applied to solid-liquid two-phase flow - Google Patents

Abstract

The invention discloses a solid particle multistage crushing and separating device applied to solid-liquid two-phase flow, which comprises a shell, a main shaft, a transmission structure, a grid cylindrical differential crushing device, a wall triangular crushing device, a cross screw crushing device, a staggered tooth crushing device, a double-section crushing device, a straight screw crushing device and a spherical hinge wolf tooth crushing device, wherein the top of the shell is provided with a particle chamber inlet; and conveying the particles which are not completely crushed to a fine filter screen and a particle lifting device which are crushed again by a straight spiral crushing device, crushing the completely crushed particles by a small hexagonal crushing device and a particle fine crushing device, carrying out solid-liquid separation by a particle separation conveying device, and finally screening by a tail-stage filter screen and improving the outflow state of liquid. The invention realizes layer-by-layer crushing and solid-liquid separation of solid particles in solid-liquid two phases, reduces solid fraction and particle size of the particles, and can reduce abrasion of blades and cover plates.

Description

Multistage solid particle crushing and separating device applied to solid-liquid two-phase flow

Technical Field

The invention relates to the field of crushing and separating devices, in particular to a solid particle multistage crushing and separating device applied to solid-liquid two-phase flow.

Background

The solid-liquid two-phase flow pump is widely applied in the fields of mining, coal, dredging and the like, and is used for conveying solid-liquid two-phase flow containing high-concentration solid particles. Solid particles in the flowing medium have great abrasion to the pump flow passage part, and the increase of the average particle size and the solid phase mass fraction can aggravate the abrasion, deteriorate the performance and reduce the service life of the pump.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a multistage solid particle crushing and separating device applied to a solid-liquid two-phase flow, which is characterized in that before a medium enters a solid-liquid two-phase flow pump, the device passes through a grid-barrel-shaped differential crushing device, a wall triangular crushing device, a cross screw crushing device, a staggered tooth crushing device, a double-section crushing device, a straight screw crushing device, a spherical hinge wolf tooth crushing device, a small hexagonal crushing device and a particle fine crushing device to fully crush solid particles, and meanwhile, solid-liquid separation is carried out by means of a particle separation conveying device, so that the average particle size and solid fraction of the solid particles entering the solid-liquid two-phase flow pump are greatly reduced, the abrasion to pump overflow parts is reduced, the service efficiency is improved, and the service life is prolonged.

In order to achieve the above purpose, the invention adopts the following technical scheme: the multistage solid particle crushing and separating device applied to the solid-liquid two-phase flow comprises a shell, a main shaft, a transmission structure and a particle chamber inlet, wherein the main shaft is inserted into the center of the shell and externally connected with a motor, the transmission structure is connected with the main shaft and used for driving the shell to rotate, and the particle chamber inlet is formed in the top of the shell;

the grid-barrel-shaped differential crushing device, the wall triangular crushing device, the cross screw crushing device, the staggered tooth crushing device, the double-section crushing device, the straight screw crushing device and the spherical hinge wolf tooth crushing device are sequentially arranged in the shell cavity from top to bottom;

the fine filtering screen and the particle lifting device are arranged below the spherical hinge wolf tooth crushing device, and particles with diameters larger than 5cm are sent back to the straight spiral crushing device for re-crushing;

the small hexagonal crushing device and the particle fine crushing device are arranged below the particle lifting device and are used for further crushing particles passing through the fine filtering screen;

the particle separation and transportation device is arranged below the particle fine crushing device and used for solid-liquid separation;

and the tail-stage filter screen is arranged below the particle separation and transportation device and is used for screening and improving the outflow state of liquid.

The transmission structure comprises a first gear, a transmission gear shaft, a second gear, a wall internal gear, a first gear arranged on a main shaft and driven by an external motor to rotate positively, wherein the first gear is meshed with the first gear fixed on the transmission gear shaft to drive the second gear to rotate reversely, the second gear is meshed with the wall internal gear to drive the wall internal gear to rotate reversely, so as to drive the whole movable wall to rotate, a grid-shaped differential crushing device, a wall triangular crushing device and a staggered tooth crushing device are arranged on the movable wall in sequence from top to bottom, the cross spiral crushing device is arranged on the main shaft, the grid-shaped differential crushing device is composed of an inner part and an outer part, grid-shaped crushing blades, a triangular crushing blade I, a rotating pin axle I, a grid plate, a triangular spike crushing blade I, a grid plate clearance, a differential shaft, a support shaft I, a triangular spike crushing blade II, a fixed shaft I, a bearing I, a main shaft bearing and a motor I, the grid plate and the grid plate gap form a grid tube-shaped differential crushing device external frame together, the grid tube-shaped differential crushing device is fixed on a movable wall surface through a first fixed shaft, a main shaft bearing is arranged at the joint of the first fixed shaft and the main shaft in the middle part, so that the main shaft bearing rotates independently of the main shaft, the grid tube crushing blades are grid tube-shaped differential crushing device external crushing blades which are fixed on the outer side of the grid plate, a first triangular crushing blade is arranged on the grid tube crushing blades through a rotating pin shaft, a plurality of triangular spike crushing blades are arranged on the inner side of the grid plate, a plurality of triangular spike crushing blades are arranged on the same, the support shaft is uniformly fixed on a differential shaft in the circumferential direction, a plurality of triangular spike crushing blades are uniformly arranged on the support shaft, a first motor is arranged in the first fixed shaft, the differential shaft is driven to rotate, the grid plate rotates at a plurality of times of speed coaxially and differentially through a differential mechanism, the differential shaft is connected with the first bearing, the first bearing is arranged in the first fixed shaft;

The wall triangular crushing device surrounds a circle of wall, a plurality of groups are arranged in each row, the wall triangular crushing device is provided with wall triangular crushing blades, a rotating pin shaft II and triangular crushing blades II, the wall triangular crushing blades are fixed on a movable wall, the triangular crushing blades II are arranged on the wall triangular crushing blades through the rotating pin shaft II, a plurality of cross screw crushing devices are arranged, the cross screw crushing devices are distributed vertically and symmetrically about the staggered tooth crushing devices, the cross screw crushing devices are provided with cross crushing blades I, the spiral crushing blades I are arranged at a main shaft, the cross crushing blades I are connected with the spiral crushing blades I and the main shaft, the staggered tooth crushing devices are provided with fixing plates, staggered tooth rotating shafts I, large tooth crushing blades I, medium tooth crushing blades I, small tooth crushing blades I, large tooth crushing blades II, medium tooth crushing blades II, staggered tooth rotating shafts II, motors II and motors III, the staggered tooth crushing device is annularly and uniformly arranged on a plurality of movable wall surfaces through a fixed plate, the fixed plate is a wide part far from a main shaft, the fixed plate is provided with a large tooth crushing blade I, a middle tooth crushing blade I, a small tooth crushing blade I and a staggered tooth rotating shaft I, the fixed plate is symmetrically arranged about a motor II, the small tooth crushing blade I, the middle tooth crushing blade I and the large tooth crushing blade I are respectively correspondingly arranged far from the motor II, the position close to the main shaft is a narrow part, the fixed plate is provided with a large tooth crushing blade II, a middle tooth crushing blade II and a small tooth crushing blade II, the fixed plate is respectively coaxial with the staggered tooth rotating shaft II and symmetrically arranged about the motor III, the small tooth crushing blade II, the staggered tooth crushing blade II and the staggered tooth rotating shaft I are respectively correspondingly arranged to be driven by the motor II and rotate positively, the motor II is arranged in the fixed plate, the staggered tooth rotating shaft II is driven by the motor III, the motor III is arranged in the fixed plate in a reverse rotation manner;

Further, the grid cylinder type differential crushing device is fixed on the movable wall surface through six fixed shafts, every two adjacent grid cylinder type differential crushing devices rotate reversely, nine grid plates are arranged every week, one grid cylinder crushing blade is fixed on the outer side of each grid plate, one triangular crushing blade is respectively arranged on the straight surface and the curved surface of each grid cylinder crushing blade, seven triangular spike crushing blades are arranged on the inner side of each grid plate, six support shafts are uniformly arranged on the differential shaft, and the speed ratio between the differential shaft and the grid plates is 3:1, the rotation directions are the same;

further, four groups of wall triangular crushing blades are arranged on each row of the wall triangular crushing device, four triangular crushing blades II are arranged on the wall triangular crushing blades, three blades are arranged on the upper blade surface, one blade surface is arranged on the lower blade surface, four layers of spiral crushing blades are arranged in total, two layers are respectively and vertically symmetrically distributed on the staggered tooth crushing device, six rows of cross crushing blades are arranged on each layer, and eight staggered tooth crushing devices are uniformly arranged in a ring shape;

the double-section crushing device and the spherical hinge wolf tooth crushing device are sequentially arranged on a movable wall surface from top to bottom, the straight spiral crushing device is fixed on a main shaft, the double-section crushing device is provided with an outer section knife I, an inner section knife II and an inner section knife II, the double-section crushing device is arranged on the movable wall surface through a funnel-shaped section plate at a plurality of angles, the inner section knife I is fixed on the outer section knife I and is arranged on the funnel-shaped section plate, a crushing inlet I is formed between the inner section knife I and the inner section knife, a crushing inlet II is formed between the inner section knife I and the funnel-shaped section plate, the inner section knife II is fixed on the outer section knife II and is arranged on the funnel-shaped section plate, a crushing inlet IV is formed between the inner section knife II and the funnel-shaped section plate, a cutter combined with the outer section knife I and a cutter combined with the inner section knife II are longitudinally distributed along the funnel-shaped section plate, and the two rows of cutters are annularly distributed on the funnel-shaped section plate;

The first-shaped spiral crushing device is provided with a second spiral crushing blade, the second spiral crushing blade is arranged at the main shaft, the first spiral crushing blade is connected with the second spiral crushing blade and the main shaft, the spherical hinge spike crushing device is provided with a first spherical hinge joint, a short-branch crushing blade, a long-branch crushing blade, a third triangular spike crushing blade and a second bearing, the spherical hinge spike crushing device is fixed on a movable wall surface through the first spherical hinge joint, a plurality of spherical hinge spike crushing blades are arranged in each row, the installation mode is the same as that of the staggered tooth crushing device, but different in a plurality of angles, the spike crushing blades are connected with the first spherical hinge joint, a plurality of second bearings are arranged on the spherical hinge joint, and the second bearings are used for connecting the short-branch crushing blade with the third triangular spike crushing blade and the long-branch crushing blade with the third triangular spike crushing blade into a whole so as to perform rotary crushing by means of non-uniform stress of slurry impact;

further, the installation angle of the funnel-shaped cutting plate in the double-cutting crushing device is 60 degrees anticlockwise based on the downward direction of the movable wall, seven groups of cutters combined by the inner cutting blade I and the outer cutting blade I are longitudinally distributed along the funnel-shaped cutting plate, and six groups of cutters combined by the inner cutting blade II and the outer cutting blade II are longitudinally distributed along the funnel-shaped cutting plate;

Further, three layers of spiral crushing blades II are arranged in total, three rows of crushing cutters are arranged on each layer, two spherical hinge wolf teeth crushing devices are arranged on each row on the movable wall surface, the installation angles of the spherical hinge wolf teeth crushing devices are different from those of the staggered teeth crushing devices by 22.5 degrees, and three bearings II are arranged on the wolf teeth crushing blades;

the fine filtering screen is fixed on a movable wall surface, the fine filtering screen is matched with the particle lifting device to finish the re-crushing of solid particles, the particle lifting device is provided with a ball joint II, a spring connecting bulge, a bracket connecting bulge, a rotating pin III, a baffle plate, a telescopic support plate, a guide bracket, a spring, a concave bracket, a protection sleeve, a telescopic support, a motor III, a base plate, a lifting bottom plate, a motor III, a movable wall surface and a driving telescopic support plate, so as to drive the particle lifting device to operate, the telescopic support plate is close to the central line of a main shaft until the baffle plate is close to the base plate, the motor III works to restore the original position, the movement of the telescopic support plate drives the guide bracket to move in the same direction on a guide channel of the lifting bottom plate around the rotating pin III, the bracket connecting bulge fixed on the rotating pin III is pushed to rise, the upper end of the bracket connecting bulge is fixed with a concave bracket, the edge of the concave bracket is fixed with the protection sleeve, the other end of the spring connecting bulge is connected with the spring connecting bulge, the spherical hinge joint II is fixed on the main shaft, and the spherical hinge joint II is arranged in the main shaft, when the spring is in operation, and the spring can drive the bracket to move to a guide channel to move to a particle through the broken hole again;

The small hexagonal crushing device is uniformly arranged in a plurality around the circumference and is provided with a fixed shaft II, small hexagonal crushing blades and a rotating pin shaft IV, the small hexagonal crushing blades are fixed on the fixed shaft II through the rotating pin shaft IV, the fixed shaft II is arranged on the movable wall surface, the particle fine crushing device is arranged below the small hexagonal crushing device, the arrangement mode is the same as that of the grid-tube-shaped differential crushing device, the small hexagonal crushing device is provided with a fixed shaft III, the fine crushing blades I, the fixed shaft IV, the fine crushing blades II, the fixed shaft III are externally connected with a driving shaft to rotate and rotate reversely, the fine crushing blades I are uniformly arranged on the three surfaces of the fixed shaft, the fixed shaft IV is externally connected with the driving shaft to rotate and are radially arranged in a cavity, three fine crushing blades II are uniformly arranged on the four surfaces of a fixed shaft in a forward rotation mode, a large bearing is connected with a movable wall surface and a base, the fine crushing blades II are provided with a bearing inner ring, a ball and a bearing outer ring, the bearing inner ring is matched with the outer wall surface of the movable wall surface, the bearing outer ring is matched with the inner wall surface of the base, dynamic and static independence of the movable wall surface and the base is achieved, a separation conveying belt is arranged on a particle separation conveying device, a fixed shaft five is arranged on the fixed shaft five, the fixed shaft five is arranged at the base, the rotation shaft five is arranged at the fixed shaft five, the separation conveying belt is driven by a motor externally connected with the rotation shaft five on two sides to rotate forward, a tail-stage filter screen is arranged at the bottommost part of the device and fixed on the base, and periodic replacement is facilitated;

Further, the motors are symmetrically arranged on the same diameter extension line on the movable wall surface, one motor and two motors on each side work synchronously, the working period is one turn, and twelve small hexagonal crushing devices are uniformly arranged around the circumference;

further, ten fine crushing blades are arranged in total, four fixing shafts are symmetrically distributed about the middle fixing shaft, two fixing shafts are arranged on each side, the fine crushing blades are distributed up and down, the fine crushing blades are symmetrically distributed about the plane of the four fixing shafts, and twelve fine crushing blades are arranged in total.

By the technical scheme, the invention has the following beneficial effects:

1. the invention adopts a transmission structure, and the whole movable wall surface rotates reversely relative to the main shaft through the mutual meshing of the first gear, the second gear and the wall surface internal gear, so that the solid particles are more fully crushed by cutters fixed on the movable wall surface and the main shaft;

2. according to the invention, a grating cylinder-shaped differential crushing device is adopted, grating cylinder crushing blades and triangular crushing blades outside the device jointly crush particles entering the grating cylinder, a triangular spike crushing blade II inside the device rotationally crushes the particles, the inner rotating speed is higher than the outer rotating speed, thrown particles or the particles which are impacted to a triangular spike crushing blade I arranged on the inner side of a grid plate can be crushed for multiple times, meanwhile, a fixed shaft I and a main shaft bearing can ensure that the position where the fixed shaft I and the main shaft bearing are positioned is wholly stable, a wall triangular crushing device crushes solid particles which impact the wall through a wall triangular crushing blade and a triangular crushing blade II, a cross spiral crushing device crushes the solid particles which are close to the main shaft through a cross crushing blade and a spiral crushing blade II, a staggered tooth rotating shaft I in the staggered tooth crushing device is opposite to a staggered tooth rotating shaft II in rotating direction, the size arrangement mode of the crushing blade I is opposite to that of the staggered tooth rotating shaft II, the distance of the crushing device is reduced, and the crushing capacity is enhanced;

3. The invention adopts a double-section crushing device, the device is arranged in a ring-distributed cavity, the solid particles in a runner are crushed in all directions, a straight-line spiral crushing device is used for crushing the solid particles close to a main shaft through a second spiral crushing blade and a straight crushing blade, a spherical hinge wolf tooth crushing device is arranged on a movable wall surface through a first spherical hinge joint, the wolf tooth crushing blade is subjected to uneven self-rotation crushing, a short crushing blade and a long crushing blade are subjected to uneven self-rotation crushing in the runner, a fine filter screen is matched with a particle lifting device, the particles are conveyed to the crushing device by the particle lifting device to be crushed again, and the particles passing through the fine filter screen are finally and fully crushed by a small hexagonal crushing device and a particle fine crushing device;

4. the invention adopts the large bearing to realize dynamic and static independence of the movable wall surface and the base, reduces flow impact, carries out solid-liquid separation on crushed particles through the particle separation conveying device, finally carries out final screening through the tail-stage filter screen which can be replaced regularly, and improves the outflow shape of fluid.

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a multistage solid particle crushing and separating device applied to solid-liquid two phases;

FIG. 2 is an enlarged view of a transmission structure;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is an enlarged view of the structure of the grating cylinder differential crushing device;

FIG. 5 is a top view of the structure of the grating cylinder differential crushing device;

FIG. 6 is an enlarged view of the wall surface triangular crushing device;

FIG. 7 is an enlarged view of the structure of the cross screw crusher;

FIG. 8 is an enlarged view of the structure of the staggered tooth crushing device;

FIG. 9 is a top view of the staggered tooth crushing device;

FIG. 10 is an enlarged view of the structure of the double-section crushing device;

FIG. 11 is a top view of a double section crushing apparatus;

FIG. 12 is an enlarged view of the structure of the inline spiral breaker;

FIG. 13 is an enlarged view of the structure of the spherical hinge wolf tooth crushing device;

FIG. 14 is an enlarged view of the structure of the particle lift device;

FIG. 15 is an enlarged view of the structure of the small hexagonal crushing device;

FIG. 16 is an enlarged view of the structure of the fine particle size reduction apparatus;

FIG. 17 is an enlarged view of a large bearing structure;

fig. 18 is an enlarged view of the structure of the particle segregating conveyor.

Reference numerals of the above drawings: 1. a main shaft; 2. a transmission structure; 21. a first gear; 22. a transmission gear shaft; 23. a second gear; 24. a wall internal gear; 3. a particle chamber inlet; 4. a movable wall surface; 5. a grating cylinder differential crushing device; 51. crushing the blades by a grating cylinder; 52. triangular crushing leaves I; 53. the first pin shaft is rotated; 54. a grid plate; 55. a triangular spike crushing knife I; 56. grid plate gaps; 57. a differential shaft; 58. a support shaft; 59. a triangular spike crushing cutter II; 510. a first fixed shaft; 511. a first bearing; 512. a spindle bearing; 513. a first motor; 6. wall triangular crushing device; 61. wall triangular crushing knife; 62. rotating the second pin shaft; 63. triangular crushing blades II; 7. a cross screw crushing device; 71. a cross crushing knife; 72. spiral crushing blade I; 8. staggered tooth crushing device; 81. a fixing plate; 82. a staggered tooth rotating shaft I; 83. crushing a first blade by using a large tooth; 84. crushing the first blade by the middle tooth; 85. crushing the first blade by using small teeth; 86. crushing a second blade by using a large tooth; 87. middle tooth crushing blade II; 88. crushing the second blade by using small teeth; 89. a staggered tooth rotating shaft II; 810. a second motor; 811. a third motor; 9. a double-section crushing device; 91. an outer slitting knife I; 92. crushing an inlet I; 93. an inner slitting knife I; 94. cutting into second inlet; 95. a funnel-shaped split plate; 96. an outer slitting knife II; 97. cutting the inlet III; 98. an inner slitting knife II; 99. cutting the inlet IV; 10. a straight spiral crushing device; 101. spiral crushing blade II; 102. a straight crushing cutter; 11. ball hinge wolf tooth breaker; 111. a first spherical hinge joint; 112. short-branch crushing blades; 113. crushing the wolf teeth; 114. long crushing blades; 115. a triangular spike crushing cutter III; 116. a second bearing; 12. fine filtration screens; 13. a particle lifting device; 131. a spherical hinge joint II; 132. a spring connecting protrusion; 133. a through hole; 134. a particle lifting channel; 135. a bracket connecting protrusion; 136. rotating a pin shaft III; 137. a baffle; 138. a telescopic support plate; 139. a guide bracket; 1310. guiding the pavement; 1311. a spring; 1312. a concave bracket; 1313. a protective sleeve; 1314. a telescopic bracket; 1315. a third motor; 1316. a backing plate; 1317. lifting the bottom plate; 14. a small hexagonal crushing device; 141. a second fixed shaft; 142. small hexagonal crushing blades; 143. rotating the pin roll IV; 15. a particle fine crushing device; 151. a third fixed shaft; 152. finely crushing the first blade; 53. a fourth fixed shaft; 154. finely crushing the second blade; 16. a large bearing; 161. a bearing inner ring; 162. a ball; 163. a bearing outer ring; 17. a base; 18. a particle separation transport device; 181. separating the conveying belt; 182. a fifth fixed shaft; 183. rotating a pin shaft V; 19. tail stage filter screen.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

Examples: referring to fig. 1-18, the embodiment discloses a multistage solid particle crushing and separating device applied to solid-liquid two-phase flow, which comprises a shell, a main shaft 1 inserted in the center of the shell and externally connected with a motor, a transmission structure 2 connected with the main shaft 1 and used for driving the shell to rotate, and a particle chamber inlet 3 arranged at the top of the shell;

The grid-barrel-shaped differential crushing device 5, the wall triangular crushing device 6, the cross screw crushing device 7, the staggered tooth crushing device 8, the double-section crushing device 9, the straight screw crushing device 10 and the spherical hinge wolf tooth crushing device 11 are sequentially arranged in the shell cavity from top to bottom;

the fine filter screen 12 and the particle lifting device 13 are arranged below the spherical hinge wolf tooth crushing device 11 and are used for conveying particles with diameters larger than 5cm back to the straight spiral crushing device 10 for crushing again;

the small hexagonal crushing device 14 and the particle fine crushing device 15 are arranged below the particle lifting device 13 and used for further crushing the particles after the particles are completely crushed;

a particle separation and transportation device 18 arranged below the particle fine crushing device 15 and used for solid-liquid separation;

a tail stage filter screen 19 is provided below the particle separation conveyor 18 for screening while improving the outflow of liquid.

In this embodiment, the housing has a vertical roll shape.

The transmission structure 2 is provided with a first gear 21, a transmission gear shaft 22, a second gear 23, a wall internal gear 24, wherein the first gear 21 is arranged on the main shaft 1 and is driven by an external motor, the first gear 21 is in positive rotation with the second gear 23 fixed on the transmission gear shaft 22, the second gear 23 is driven to rotate reversely, the second gear 23 is internally meshed with the wall internal gear 24, the wall internal gear 24 is driven to rotate reversely, the whole movable wall 4 is driven to rotate, the grating cylinder differential crushing device 5, the wall triangle crushing device 6 and the staggered tooth crushing device 8 are sequentially arranged on the movable wall 4 from top to bottom, the cross spiral crushing device 7 is arranged on the main shaft 1, the grating cylinder differential crushing device 5 is composed of an inner part and an outer part, a grating cylinder crushing blade 51, a triangle crushing blade 52, a rotating pin shaft 53, a grating plate 54, a triangle spike crushing blade 55, a gap 56, a differential shaft 57 and a fulcrum 58, the triangular spike crushing blade II 59, the fixed shaft I510, the bearing I511, the main shaft bearing 512, the motor I513, the grid plate 54 and the grid plate gap 56 jointly form an outer frame of the grid-barrel-shaped differential crushing device 5, the grid-barrel-shaped differential crushing device 5 is fixed on the movable wall surface 4 through the fixed shaft I510, the main shaft bearing 512 is arranged at the joint of the fixed shaft I510 in the middle part and the main shaft 1 and is enabled to rotate independently of the main shaft 1, the grid-barrel crushing blade 51 is an outer crushing blade of the grid-barrel-shaped differential crushing device 5 and is fixed on the outer side of the grid plate 54, the triangular crushing blade I52 is arranged on the grid-barrel crushing blade 51 through the rotating pin I53, a plurality of triangular spike crushing blades I55 are arranged on the inner side of the grid plate 54 and are arranged, the support shafts 58 are uniformly fixed on the differential shaft 57 in the circumferential direction, the triangular spike crushing blade II 59 is uniformly arranged on the support shafts 58, the first motor 513 is disposed inside the first fixed shaft 510, drives the differential shaft 57 to rotate, and rotates the louver 54 at a plurality of times of speed coaxially and differentially through the differential, the differential shaft 57 is connected to the first bearing 511, and the first bearing 511 is disposed inside the first fixed shaft 510.

The wall triangular crushing device 6 surrounds a circle of wall, a plurality of groups of wall triangular crushing cutters 61 are arranged in each row, a second rotating pin shaft 62 is arranged on each group of wall triangular crushing cutters, a second triangular crushing blade 63 is arranged on each group of wall triangular crushing cutters 61, the wall triangular crushing cutters 61 are fixed on the movable wall 4, and the second triangular crushing blades 63 are arranged on the wall triangular crushing cutters 61 through the second rotating pin shaft 62 in a plurality. The cross screw crushing device 7 is vertically symmetrically distributed about the staggered tooth crushing device 8 and comprises a cross crushing cutter 71, a first screw crushing blade 72, the first screw crushing blade 72 is arranged at the main shaft 1, and the cross crushing cutter 71 is connected with the first screw crushing blade 72 and the main shaft 1. The staggered tooth crushing device 8 comprises a fixed plate 81, a staggered tooth rotating shaft I82, a large tooth crushing blade I83, a middle tooth crushing blade I84, a small tooth crushing blade I85, a large tooth crushing blade II 86, a middle tooth crushing blade II 87, a small tooth crushing blade II 88, a staggered tooth rotating shaft II 89, a motor II 810, a motor III 811, a plurality of staggered tooth crushing devices 8 are uniformly distributed on a movable wall surface 4 in a ring shape through the fixed plate 81, the fixed plate 81 is a wide part far away from the main shaft 1, the fixed plate is provided with the large tooth crushing blade I83, the middle tooth crushing blade I84, the small tooth crushing blade I85 and the small tooth crushing blade II 82 are coaxial with the staggered tooth rotating shaft I82, and are symmetrically arranged on the motor II 810, gradually away from the motor II 810 and respectively correspond to the small tooth crushing blade I85, the middle tooth crushing blade II 84, the large tooth crushing blade II 83 is a narrow part near the main shaft 1, the large tooth crushing blade II 86 is arranged on the motor III 811, the middle tooth crushing blade II 87, the small tooth crushing blade II 88 is coaxial with the small tooth rotating shaft II 89, and is symmetrically arranged on the motor III 811, the motor III 811 is gradually arranged on the motor III 811 and is gradually opposite to the motor II, the motor 87, the inside the staggered tooth crushing blade II is reversely arranged inside the motor 87, the staggered tooth crushing blade is fixed by the three-shaped motor 87, and is reversely arranged inside the staggered tooth crushing blade III, and is fixed by the staggered tooth rotating plate 811, and is arranged inside the motor 81.

In this embodiment, the grating cylinder type differential crushing device 5 is fixed on the movable wall surface 4 through six fixed shafts one 510, rotation of two adjacent grating cylinder type differential crushing devices 5 is reversed, nine grating plates 54 are arranged every week, one grating cylinder crushing blade 51 is fixed on the outer side of each grating plate 54, one triangular crushing blade one 52 is arranged on the straight surface and the curved surface of each grating cylinder crushing blade 51, seven triangular spike crushing blades one 55 are arranged on the inner side of each grating plate, six support shafts 58 are uniformly arranged on the differential shaft 57, and the speed ratio between the differential shaft 57 and the grating plates 54 is 3:1, the rotation directions are the same.

Four groups of wall triangular crushing blades 61 are arranged on each row of the wall triangular crushing device 6, four triangular crushing blades two 63 are arranged on the wall triangular crushing blades 61, three blades are arranged on the upper blade surface, one spiral crushing blade one 72 is arranged on the lower blade surface, four layers are arranged on the spiral crushing blade one 72, two layers are respectively and vertically symmetrically distributed on the staggered tooth crushing device 8, six rows of cross crushing blades 71 are arranged on each layer, and eight staggered tooth crushing devices 8 are evenly arranged in a ring shape.

The double-section crushing device 9 and the spherical hinge wolf tooth crushing device 11 are sequentially arranged on the movable wall surface 4 from top to bottom, and the straight spiral crushing device 10 is fixed on the main shaft 1. The double-section crushing device 9 comprises an outer section I91, an inner section I93, an outer section II 96 and an inner section II 98; the double-section crushing device 9 is installed on the movable wall surface 4 at a plurality of angles through a funnel-shaped section plate 95, an inner section knife I93 is fixed on an outer section knife I91, the inner section knife I93 is installed on the funnel-shaped section plate 95, a crushing inlet I92 is formed between the inner section knife I and the outer section knife I, a crushing inlet II 94 is formed between the inner section knife I93 and the funnel-shaped section plate 95, an inner section knife II 98 is fixed on an outer section knife II 96, the inner section knife II is installed on the funnel-shaped section plate 95, a crushing inlet III 97 is formed between the inner section knife II 98 and the funnel-shaped section plate 95, a crushing inlet IV 99 is formed between the inner section knife II 98 and the funnel-shaped section plate 95, a plurality of cutters combined by the inner section knife I93 and the outer section knife II 98 and the cutter combined by the outer section knife II 96 are longitudinally distributed along the funnel-shaped section plate 95, and two rows of cutters are annularly distributed on the funnel-shaped section plate 95.

The straight spiral crushing device 10 comprises a second spiral crushing blade 101, a straight crushing blade 102, wherein the second spiral crushing blade 101 is arranged at the main shaft 1, and the straight crushing blade 102 is connected with the second spiral crushing blade 101 and the main shaft 1. The spherical hinge wolf tooth crushing device 11 is provided with a first spherical hinge joint 111, a short branch crushing blade 112, a wolf tooth crushing blade 113, a long branch crushing blade 114, a third triangular spike crushing blade 115, a second bearing 116, and the spherical hinge wolf tooth crushing device 11 is fixed on the movable wall surface 4 through the first spherical hinge joint 111, a plurality of spherical hinge joints are arranged in each row, the installation mode is the same as that of the staggered tooth crushing device 8, but the spherical hinge joints are different in a plurality of angles, the wolf tooth crushing blade 113 is connected with the first spherical hinge joint 111, a plurality of second bearings 116 are arranged on the spherical hinge joints, and the second bearing 116 is used for connecting the short branch crushing blade 112 with the third triangular spike crushing blade 115 and the long branch crushing blade 114 with the third triangular spike crushing blade 115 into a whole so as to perform rotary crushing by means of non-uniform stress of slurry impact.

In this embodiment, the installation angle of the funnel-shaped cutting plate 95 in the double-cutting crushing device 9 is 60 degrees counterclockwise based on the downward moving wall surface 4, seven groups of cutters combined by the inner cutting blade 93 and the outer cutting blade 91 are longitudinally distributed along the funnel-shaped cutting plate 95, and six groups of cutters combined by the inner cutting blade 98 and the outer cutting blade 96 are longitudinally distributed along the funnel-shaped cutting plate 95.

The spiral crushing blade II 101 is provided with three layers, each layer is provided with three rows of crushing cutters 102 in a straight line, the spherical hinge wolf teeth crushing device 11 is arranged on the movable wall surface 4 in two rows, the installation angle of the spherical hinge wolf teeth crushing device is 22.5 degrees different from that of the staggered teeth crushing device 8, and the wolf teeth crushing blade 113 is provided with three bearings II 116.

The fine filter screen 12 is fixed on the movable wall surface 4 and is matched with the particle lifting device 13 to complete the re-crushing of the solid particles. The particle lifting device 13 comprises a ball joint II 131, a spring connection protrusion 132, a bracket connection protrusion 135, a rotating pin III 136, a baffle 137, a telescopic support 138, a guide bracket 139, a spring 1311, a concave bracket 1312, a protection sleeve 1313, a telescopic support 1314, a motor III 1315, a base plate 1316, a lifting base plate 1317, a motor III 1315 fixed on a movable wall 4, and a driving telescopic support 138, so as to drive the particle lifting device 13 to operate, the telescopic support 138 is moved towards the central line of the main shaft 1 until the baffle 137 is close to the base plate 1316, the motor III 1315 works so as to restore the original position, the movement of the telescopic support 138 drives the guide bracket 139 to move in the same direction on a guide channel 1310 of the lifting base plate 1317, the telescopic support 1314 moves around the rotating pin III 136, the bracket connection protrusion 135 fixed on the rotating pin III 136 is lifted, the concave bracket 1312 is fixed on the upper end of the bracket connection protrusion 135, the protection sleeve 1313 is fixed on the edge of the concave bracket 1312, the other end of the upper connection spring 1311 is connected with the spring connection protrusion 132, the spring connection protrusion 132 is fixed on the central line of the main shaft 1, and the spring connection protrusion 132 is moved towards the central line of the main shaft 1, and the ball joint II is moved towards the spherical joint 131 again, so as to enable particles to move in the spherical joint 133, and the spherical joint 133 is exposed, and the particle lifting device is moved in the spherical joint II, and the spherical joint is moved.

In the embodiment, three motors 1315 are symmetrically arranged on the same diameter extension line on the movable wall surface 4, one motor 1315 is arranged on each side, two motors 1315 work synchronously, the working period is one circle, and twelve small hexagonal crushing devices 14 are uniformly arranged around the circumference;

ten fine crushing blades 152 are arranged, four fixing shafts 151 are symmetrically distributed about a middle fixing shaft four 153, two fixing shafts are arranged on each side, the fine crushing blades are distributed up and down, the fine crushing blades two 154 are symmetrically arranged about a plane where the fixing shaft four 153 is located, and the fine crushing blades two 154 are arranged twelve.

The small hexagonal crushing devices 14 are uniformly arranged in a plurality around the circumferential direction and are provided with a second fixed shaft 141, small hexagonal crushing blades 142 and a fourth rotating pin 143, the small hexagonal crushing blades 142 are fixed on the second fixed shaft 141 through the fourth rotating pin 143, and the second fixed shaft 141 is arranged on the movable wall surface 4. The particle fine crushing device 15 is arranged below the small hexagonal crushing device 14, the arrangement mode of the particle fine crushing device is the same as that of the grid-barrel-shaped differential crushing device 5, the particle fine crushing device comprises a third fixed shaft 151, a first fine crushing blade 152, a fourth fixed shaft 153, a second fine crushing blade 154, a plurality of third fixed shafts 151 and a driving shaft which are externally connected with each other rotate, the first fine crushing blade 152 is evenly arranged on the surface of the third fixed shaft 151 in a reverse rotation mode, the fourth fixed shaft 153 and the driving shaft which is externally connected with each other rotate, the third fine crushing blade 152 is arranged in a positive rotation mode in a radial arrangement mode in a cavity, and the second fine crushing blade 154 is evenly arranged on the surface of the fourth fixed shaft 153. The large bearing 16 is connected with the movable wall surface 4 and the base 17 and comprises a bearing inner ring 161, balls 162 and a bearing outer ring 163, wherein the bearing inner ring 161 is matched with the outer wall surface of the movable wall surface 4, and the bearing outer ring 163 is matched with the inner wall surface of the base 17, so that dynamic and static independence of the movable wall surface 4 and the base 17 is realized. The particle separation and transportation device 18 is provided with a separation and transportation belt 181, a fixed shaft five 182, a rotating pin five 183, the fixed shaft five 182 is arranged at the base 17, the rotating pin five 183 is arranged at the fixed shaft five 182, the separation and transportation belt 181 is driven to rotate positively by motors externally connected with the rotating pin five 183 at two sides, a tail-stage filter screen 19 is arranged at the bottommost part of the device and fixed on the base 17, and the device is convenient to replace regularly.

The working process of the invention is as follows:

the device starts, and the motor drives the main shaft 1 to rotate forward, and drives the movable wall surface 4 to rotate reversely through the transmission mechanism 2, so that solid-liquid two-phase media enter from the particle chamber inlet 3, and the media are uniformly crushed by the rotation of the chamber, so that the abrasion to the device is reduced.

Next, solid particles in the medium are crushed by the grating cylindrical differential crushing device 5 firstly, the device rotates along with the wall surface 4 through the first fixed shaft 510, meanwhile, the grating cylindrical crushing blade 51 provided with the first triangular crushing blade 52 rotates by taking the differential shaft 57 as an axis, the crushing capacity of the particles is increased, part of the medium enters the grating cylindrical differential crushing device 5, the fulcrum 58 fixed with the second triangular spike crushing blade 59 is subjected to high-speed rotation crushing, the medium particles can leave the device through the grating plate gap 56, the medium particles which do not leave impact the first triangular spike crushing blade 55 on the inner side of the grating plate 54 and can be crushed for a plurality of times, then the wall surface triangular crushing device 6 is combined with the second triangular crushing blade 63 and the wall surface triangular crushing blade 61 to rotate along with the wall surface, the medium particles close to the wall surface 4 are crushed again, the first cross-shaped spiral crushing blade 7 is combined with the first cross crushing blade 71 and the spiral crushing blade 72 to positively rotate along with the main shaft 1, the medium particles close to the main shaft 1 enter the working range of the staggered tooth crushing device 8, the second motor drives the staggered tooth rotating shaft 811 to positively rotate, the second motor driven by the staggered tooth rotating shaft 811 to leave the device 54, the non-leaving the medium particles on the inner side of the first motor rotating shaft 89, the staggered tooth rotating shaft 89 is further arranged in a manner, the staggered tooth rotating the second motor rotating shaft 89 is further is reduced, and the medium particles are arranged in the staggered way of the staggered tooth rotating the small diameter of the medium particles is reduced, and the medium particles are arranged on the main shaft 1, and the small diameter is further in the gap, and the small diameter is reduced, and the medium is crushed.

Then, solid particles in the medium are crushed in all directions by the double-section crushing device 9 which is annularly distributed on the movable wall surface 4 and reversely rotates along with the movable wall surface 4, then the straight-line spiral crushing device 10 is combined with the spiral crushing blade II 101 and the straight-line crushing blade 102, solid particles approaching the main shaft 1 are crushed in a rotating mode, the medium with particles impacts the spherical hinge wolf tooth crushing device 11, the wolf tooth crushing blade 113 is unevenly stressed to perform autorotation crushing, the short branch crushing blade 112 and the long branch crushing blade 114 with the triangular spike crushing blade III 115 are unevenly stressed to perform autorotation crushing, the fine filter screen 12 is matched with the particle lifting device 13, and the particles which do not pass through the fine filter screen 12 are conveyed upwards to the through hole 133 through the particle lifting device 13, and pass through the straight-line spiral crushing device 10 and the spherical hinge wolf tooth crushing device 11 again after flowing and impacting of the solid-liquid two-phase medium.

Then, the medium passing through the fine filter screen 12 is crushed by the small hexagonal crushing device 14 which is fixed on the movable wall 4 and is reversed with the movable wall 4, then the particle medium enters the particle fine crushing device 15, the particle fine crushing device 15 is arranged on the movable wall 4, the movable wall 4 is reversed, meanwhile, the fixed shaft III 151 is externally connected with the driving shaft for reversing, the fixed shaft IV 153 is externally connected with the driving shaft for forward rotation, the crushing capacity is further enhanced, the particle crushing is more sufficient, then the crushed and complete medium flows out of the movable wall 4 and enters the base 17, the flowing impact is reduced, the solid-liquid separation is carried out by the particle separation conveying device 18 and the tail-stage filter screen 19, finally, the volume of solid particles in the flowing medium is obviously reduced, the abrasion of the flowing parts in the solid-liquid two-phase flow pump is reduced, and the service life of the pump is prolonged.

The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.

Claims (10)

1. The multistage solid particle crushing and separating device applied to the solid-liquid two-phase flow is characterized by comprising a shell, a main shaft (1) inserted in the center of the shell and externally connected with a motor, a transmission structure (2) connected with the main shaft (1) and used for driving the shell to rotate, and a particle chamber inlet (3) arranged at the top of the shell;

the grid-barrel-shaped differential crushing device (5), the wall triangular crushing device (6), the cross screw crushing device (7), the staggered tooth crushing device (8), the double-section crushing device (9), the straight screw crushing device (10) and the spherical hinge wolf tooth crushing device (11) are sequentially arranged in the shell cavity from top to bottom;

the fine filter screen (12) and the particle lifting device (13) are arranged below the spherical hinge wolf tooth crushing device (11) and are used for conveying particles with diameters larger than 5cm back to the straight spiral crushing device (10) for crushing again;

a small hexagonal crushing device (14) and a particle fine crushing device (15) which are arranged below the particle lifting device (13) and used for further crushing particles passing through the fine filtering screen (12);

The particle separation and transportation device (18) is arranged below the particle fine crushing device (15) and is used for solid-liquid separation;

and a tail stage filter screen (19) which is arranged below the particle separation and transportation device (18) and is used for screening and improving the outflow state of liquid.

2. The multistage solid particle crushing and separating device applied to solid-liquid two-phase flow according to claim 1, wherein the transmission structure (2) comprises a first gear (21), a transmission gear shaft (22), a second gear (23) and a wall internal gear (24), the first gear (21) is connected with a main shaft (1) and driven by an external motor, the main shaft (1) and the first gear (21) rotate positively, the first gear (21) is externally meshed with the second gear (23) fixed on the transmission gear shaft (22) to drive the second gear (23) to rotate reversely, and the second gear (23) is internally meshed with the wall internal gear (24); the wall internal gear (24) is driven to rotate reversely, so that the whole movable wall (4) is driven to rotate;

the grid-barrel-shaped differential crushing device (5), the wall triangular crushing device (6) and the staggered tooth crushing device (8) are sequentially arranged on the movable wall surface (4) from top to bottom, and the cross screw crushing device (7) is arranged on the main shaft (1);

the grating cylinder differential crushing device (5) comprises an inner part and an outer part, and comprises grating cylinder crushing blades (51), a triangular crushing blade I (52), a rotating pin shaft I (53), a grating plate (54), a triangular spike crushing blade I (55), a grating plate gap (56), a differential shaft (57), a support shaft (58), a triangular spike crushing blade II (59), a fixed shaft I (510), a bearing I (511), a main shaft bearing (512) and a motor I (513), wherein the grating plate (54) and the grating plate gap (56) jointly form an outer frame of the grating cylinder differential crushing device (5), the grating cylinder differential crushing device (5) is fixed on a movable wall surface (4) through a fixed shaft I (510), the joint of the fixed shaft I (510) of the middle part and the main shaft (1) is provided with a main shaft bearing (512) so that the main shaft bearing is independent of the main shaft (1), the grating cylinder crushing blade I (51) is an outer crushing blade of the grating cylinder differential crushing device (5) and is fixed on the outer side of the grating plate (54), the triangular crushing blade I (52) is arranged on the grating cylinder crushing blade (51) through the rotating pin shaft I (53), the grating spike crushing blades (55) are uniformly arranged on the same, and the grating cylinder crushing blades (55) are uniformly arranged on the same circumference, the three-angle spike crushing cutter II (59) is uniformly arranged on the support shaft (58), the motor I (513) is arranged in the fixed shaft I (510) and drives the differential shaft (57) to rotate, the grid plate (54) is coaxially and differentially rotated at a plurality of times of speed through the differential mechanism, the differential shaft (57) is connected with the bearing I (511), and the bearing I (511) is arranged in the fixed shaft I (510);

The wall triangular crushing device (6) comprises a wall triangular crushing cutter (61), a second rotating pin shaft (62) and a second triangular crushing blade (63), wherein the wall triangular crushing cutter (61) is fixed on a movable wall (4), and the second triangular crushing blade (63) is arranged on the wall triangular crushing cutter (61) through the second rotating pin shaft (62) and is provided with a plurality of triangular crushing blades;

the cross screw crushing device (7) is vertically symmetrically distributed about the staggered tooth crushing device (8) and comprises a cross crushing cutter (71) and a first screw crushing blade (72), wherein the first screw crushing blade (72) is arranged at the main shaft (1), and the cross crushing cutter (71) is connected with the first screw crushing blade (72) and the main shaft (1);

the staggered tooth crushing device (8) comprises a fixed plate (81), a staggered tooth rotating shaft I (82), a large tooth crushing blade I (83), a middle tooth crushing blade I (84), a small tooth crushing blade I (85), a large tooth crushing blade II (86), a middle tooth crushing blade II (87), a small tooth crushing blade II (88), a staggered tooth rotating shaft II (89), a motor II (810) and a motor III (811), wherein the staggered tooth crushing device (8) is connected on a movable wall surface (4) through the fixed plate (81), the fixed plate (81) is a wide part far away from a main shaft (1), the fixed plate is provided with the large tooth crushing blade I (83), the middle tooth crushing blade I (84), the small tooth crushing blade I (85) and the staggered tooth crushing blade I (82) are coaxial, and symmetrically arranged relative to the motor II (810), the gradually far away from the motor II (810) is respectively corresponding to the small tooth crushing blade I (85), the middle tooth crushing blade I (84), the large tooth crushing blade II (83) is a narrow part near the main shaft (1), the large tooth crushing blade II (86), the middle tooth crushing blade II (86) is arranged on the main shaft II (86), the motor II (811) is respectively and the staggered tooth crushing blade II (811) is gradually arranged far away from the large tooth (811), the middle tooth crushing blade II (87) and the small tooth crushing blade II (88), the staggered tooth rotating shaft I (82) is driven by the motor II (810) to rotate positively, the motor II (810) is arranged inside the fixed plate (81), the staggered tooth rotating shaft II (89) is driven by the motor III (811) to rotate reversely, and the motor III (811) is arranged inside the fixed plate (81).

3. The multistage crushing and separating device for solid particles applied to solid-liquid two-phase flow according to claim 2, wherein the multistage crushing and separating device for solid particles in solid-liquid two-phase flow comprises six grating cylinder differential crushing devices (5), rotation of two adjacent grating cylinder differential crushing devices (5) is reversed, each grating cylinder differential crushing device (5) comprises nine grating plates (54), one grating cylinder crushing blade (51) is fixed on the outer side of each grating plate (54), one triangular crushing blade (52) is respectively arranged on a straight surface and a curved surface of each grating cylinder crushing blade (51), seven triangular spike crushing blades (55) are arranged on the inner side of each grating plate (54), six support shafts (58) are uniformly arranged on each differential shaft (57), and the speed ratio between each differential shaft (57) and each grating plate (54) is 3:1, the rotation directions are the same;

the wall triangular crushing device (6) surrounds the movable wall (4) for one circle in a row of four, four triangular crushing blades II (63) are arranged on the wall triangular crushing knife (61), three upper knife surfaces are arranged, and one lower knife surface is arranged;

four layers of spiral crushing blades I (72) are arranged, two layers of spiral crushing blades I are respectively and vertically symmetrically distributed about the staggered tooth crushing device (8), and six rows of cross crushing blades 71 are arranged on each layer;

Eight staggered tooth crushing devices (8) are uniformly arranged in a ring shape along the movable wall surface (4).

4. The multistage solid particle crushing and separating device applied to solid-liquid two-phase flow according to claim 3, wherein the double-section crushing device (9) and the spherical hinge wolf tooth crushing device (11) are sequentially arranged on the movable wall surface (4) from top to bottom, and the straight spiral crushing device (10) is fixed on the main shaft (1);

the double-section crushing device (9) comprises a first outer section cutter (91), a first inner section cutter (93), a second outer section cutter (96) and a second inner section cutter (98), wherein the double-section crushing device (9) is installed on a movable wall surface (4) through a funnel-shaped section plate (95), the first inner section cutter (93) is fixed on the first outer section cutter (91), the first outer section cutter (91) is installed on the funnel-shaped section plate (95), a first crushing inlet (92) is formed between the first inner section cutter (93) and the first outer section cutter (91), a second crushing inlet (94) is formed between the first inner section cutter (93) and the first funnel-shaped section cutter (95), the second inner section cutter (98) is fixed on the second outer section cutter (96), the second outer section cutter (96) is installed on the funnel-shaped section plate (95), a third crushing inlet (97) is formed between the second inner section cutter (98) and the second outer section cutter (96), and the first inner section cutter (95) and the second inner section cutter (95) are combined with the first inner section cutter (95) and the second section cutter (95) along the longitudinal direction;

The straight-line spiral crushing device (10) comprises a second spiral crushing blade (101) and a straight-line crushing cutter (102), wherein the second spiral crushing blade (101) is arranged on the main shaft (1), and the straight-line crushing cutter (102) is connected with the second spiral crushing blade (101) and the main shaft (1);

the ball-hinged wolf tooth crushing device (11) comprises a ball-hinged joint I (111), a short-branch crushing blade (112), a wolf tooth crushing blade (113), a long-branch crushing blade (114), a triangular spike crushing blade III (115) and a bearing II (116), wherein the ball-hinged wolf tooth crushing device (11) is fixed on a movable wall surface (4) through the ball-hinged joint I (111), a plurality of ball-hinged wolf tooth crushing devices are arranged in each row, the installation mode is the same as that of the staggered tooth crushing device (8), but the installation mode is different by a plurality of angles, the wolf tooth crushing blade (113) is connected with the ball-hinged joint I (111), a plurality of bearings II (116) are arranged on the ball-hinged joint I, and the bearing II (116) is used for connecting the short-branch crushing blade (112) with the triangular spike crushing blade III (115) and the long-branch crushing blade (114) with the triangular spike crushing blade III (115) as well so as to perform rotary crushing by means of non-uniform stress of slurry impact.

5. The multistage solid particle crushing and separating device applied to solid-liquid two-phase flow according to claim 4, wherein the installation angle of the funnel-shaped section plate (95) in the double-section crushing device (9) is 60 degrees anticlockwise based on the downward direction of the movable wall surface (4), seven groups of cutters combined by the inner cutter I (93) and the outer cutter I (91) are longitudinally distributed along the funnel-shaped section plate (95), and six groups of cutters combined by the inner cutter II (98) and the outer cutter II (96) are longitudinally distributed along the funnel-shaped section plate (95).

6. The multistage solid particle crushing and separating device applied to the solid-liquid two-phase flow according to claim 4, wherein the spiral crushing blade II (101) is provided with three layers in total, and each layer is provided with three rows of crushing blades (102);

the spherical hinge wolf teeth crushing devices (11) are arranged on the movable wall surface (4) in two rows, the installation angles of the spherical hinge wolf teeth crushing devices are different from those of the staggered teeth crushing devices (8) by 22.5 degrees, and three two bearings (116) are arranged on each wolf teeth crushing blade (113).

7. The multistage crushing and separating device for solid particles in solid-liquid two-phase flow according to claim 1, wherein the fine filtering screen (12) is fixed on the movable wall (4), and is matched with the particle lifting device (13) to send solid particles with the diameter larger than 5cm back to the in-line spiral crushing device (10) for crushing, the particle lifting device (13) comprises a spherical hinge joint II (131), a spring connection protrusion (132), a bracket connection protrusion (135), a rotating pin III (136), a baffle (137), a telescopic support plate (138), a guide bracket (139), a spring (1311), a concave bracket (1312), a protective sleeve (1313), a telescopic support (1314), a motor III (1315), a base plate (1316) and a lifting base plate (1317), wherein the motor III (1315) is fixed on the movable wall (4) and is used for driving the telescopic support plate (138) so as to drive the particle lifting device (13) to operate, the telescopic support plate (138) is gathered towards the central line of the main shaft (1) when in operation, until the motor III (137) is tightly driven by the motor (1311), the base plate (1316) moves up to the guide bracket (1317) to move to the original position, and the telescopic support plate (1317) moves to the guide bracket (1317) to move upwards, the telescopic bracket (1314) moves around a rotating pin shaft III (136) to push a bracket connecting protrusion (135) fixed on the rotating pin shaft III (136) to ascend, a concave bracket (1312) is fixed at the upper end of the bracket connecting protrusion (135), a protective sleeve (1313) is fixed at the edge of the concave bracket (1312), a spring (1311) is connected to the upper part, the other end of the spring (1311) is connected with a spring connecting protrusion (132), the spring connecting protrusion (132) is fixed on a ball joint II (131), the ball joint II (131) is arranged in a main shaft (1), and in operation, the spring (1311) can play a guiding role to drive particles on the concave bracket (1312) to be exposed to a through hole (133) through a particle lifting channel (134) for crushing again;

The small hexagonal crushing devices (14) are uniformly arranged in a plurality of circumferential directions around the movable wall surface (4), each small hexagonal crushing device (14) comprises a second fixed shaft (141), small hexagonal crushing blades (142), a fourth rotating pin shaft (143), the small hexagonal crushing blades (142) are fixed on the second fixed shafts (141) through the fourth rotating pin shafts (143), and the second fixed shafts (141) are arranged on the movable wall surface (4);

the particle fine crushing device (15) is arranged below the small hexagonal crushing device (14), the arrangement mode is the same as that of the grid-barrel-shaped differential crushing device (5), the particle fine crushing device (15) comprises a fixing shaft III (151), fine crushing blades I (152), a fixing shaft IV (153), fine crushing blades II (154), a plurality of fixing shafts III (151) are externally connected with a driving shaft to rotate, the fixing shafts III (151) rotate reversely, the fine crushing blades I (152) are uniformly arranged on the surface of the fixing shaft III (151), the fixing shafts IV (153) are externally connected with the driving shaft to rotate, the fixing shafts IV (153) are radially arranged in a cavity, the three fixing shafts IV (153) rotate positively, and the fine crushing blades II (154) are uniformly arranged on the surface of the fixing shafts IV (153);

8. the multistage solid particle crushing and separating device applied to solid-liquid two-phase flow according to claim 7, wherein the three motors (1315) are symmetrically arranged on the same diameter extension line on the movable wall surface (4), one motor (1315) on each side works synchronously, and the working period is one turn;

Twelve small hexagonal crushing devices (14) are uniformly arranged around the circumference.

9. The multistage solid particle crushing and separating device applied to solid-liquid two-phase flow according to claim 7, wherein ten fine crushing blades I (152) are arranged in total, four fixing shafts III (151) are symmetrically distributed about a middle fixing shaft IV (153), two fixing shafts IV (153) are arranged on each side, two fixing shafts IV (153) are vertically distributed, the upper and lower fixing shafts IV (153) are symmetrically distributed on the plane, and twelve fine crushing blades II (154) are arranged in total.

10. The multistage solid particle crushing and separating device applied to the solid-liquid two-phase flow according to claim 1, wherein a large bearing (16) and a base (17) are further arranged below the particle fine crushing device (15); the large bearing (16) is connected with the movable wall surface (4) and the base (17), the large bearing (16) comprises a bearing inner ring (161), balls (162) and a bearing outer ring (163), the bearing inner ring (161) is matched with the outer wall surface of the movable wall surface (4), and the bearing outer ring (163) is matched with the inner wall surface of the base (17) to realize dynamic and static independence of the movable wall surface (4) and the base (17);

the particle separation conveying device (18) is connected to the base, the particle separation conveying device (18) comprises a separation conveying belt (181), a fixed shaft five (182) and a rotating pin shaft five (183), the fixed shaft five (182) is arranged at the base (17), the rotating pin shaft five (183) is arranged at the fixed shaft five (182), and the separation conveying belt (181) is driven to rotate positively by the external motor of the rotating pin shafts five (183) at two sides;

A tail-stage filter screen (19) is arranged below the particle separation and transportation device (18) and is fixed on the base (17).

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