CN211801102U

CN211801102U - Roller press

Info

Publication number: CN211801102U
Application number: CN202020073019.XU
Authority: CN
Inventors: 张海涛; 崔汉辉; 阮现彬; 刘磊磊
Original assignee: Tianrui Group Zhengzhou Cement Co ltd
Current assignee: Tianrui Group Zhengzhou Cement Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-30
Anticipated expiration: 2030-01-14

Abstract

The utility model relates to a roller press, which effectively solves the problem that raw materials in a roller gap are unevenly distributed to cause damage to roller surfaces; the technical scheme for solving the problem is that a shell is provided with two bilaterally symmetrical parallel rotating shafts which are inserted in the front and the back, rollers which are arranged in the shell and used for extrusion crushing are arranged on the rotating shafts, and a feeding hole is formed in the middle of the upper surface of the shell; a feed hopper is arranged above the shell, the lower opening of the feed hopper is opposite to the feed inlet on the shell, two screen meshes which are bilaterally symmetrical and inclined towards the middle are arranged in the feed hopper, the upper ends of the two screen meshes are hinged on the feed hopper, and the screen meshes can swing up and down in a reciprocating manner around a hinged point; a U-shaped material receiving bin is fixed at the middle position in the feeding hopper, a material shifting toothed plate capable of moving back and forth to flatten the raw materials is arranged on the U-shaped material receiving bin, and a plurality of material leaking holes are formed in the bottom plate of the U-shaped material receiving bin; the utility model provides a raw materials in the roll gap distribute inhomogeneously and cause the problem of damage to the roll surface, make the roll surface atress of two running rollers even, avoid the roll surface damage.

Description

Roller press

Technical Field

The utility model relates to a cement manufacture field, especially a roll squeezer.

Background

In the field of cement production and manufacturing, a straight barrel-shaped or pear-shaped screw forced feeder is generally adopted at a feed inlet of the existing roller press to feed raw materials between two rollers of the roller press, and granular materials with uneven sizes are crushed into powder. Because the particle diameter difference of material can appear the segregation phenomenon, the concrete expression does, when the material is dropping from the eminence to low, because the layering of material can appear in piling up the department to the material that forms different particle diameters is in the condition emergence in different spaces. The raw materials in the isolated state enter a roller press, so that the roller surface of the roller is stressed unevenly and is damaged; meanwhile, the roll gap is in a strip shape, and the discharge port of the spiral forced feeder is circular, so that raw materials in the roll gap are unevenly distributed, the two sides are fewer, the middle is more, and the roll surface of the roll wheel is unevenly stressed to damage the roll surface.

Disclosure of Invention

To the above situation, for solving the problem that exists among the prior art, the utility model aims at providing a roll squeezer, can effectively solve because of the raw materials that the segregation phenomenon appears get into the raw materials uneven distribution in roll gap and the roll gap and cause the problem of damage to the roll surface.

The technical scheme for solving the problem is that the crushing device comprises a shell, wherein two bilaterally symmetrical parallel rotating shafts are inserted in the shell in a front-back manner, rollers for extrusion crushing are arranged on the rotating shafts, and a feeding hole is formed in the middle of the upper surface of the shell; a feed hopper is arranged above the shell, the lower opening of the feed hopper is opposite to the feed inlet on the shell, two screen meshes which are bilaterally symmetrical and inclined towards the middle are arranged in the feed hopper, the upper ends of the two screen meshes are hinged on the feed hopper, and the screen meshes can swing up and down in a reciprocating manner around a hinged point; the inside intermediate position of feeder hopper is fixed with a U-shaped and connects the feed bin, and the U-shaped connects the feed bin to be equipped with can the back-and-forth movement with the material shakedown dial the material pinion rack, and it has a plurality of holes that leak to open on the bottom plate of feed bin is connected to the U-shaped, and when two screen cloth luffing motion carried out the sieve branch, the material of tiny granule can directly drop the lower part of screen cloth, and large granule raw materials can drop in the U-shaped connects the feed bin all the time.

The utility model separates the big and small particles from the raw material by screening, and then flattens the large particle raw material along the front-back direction, and the large particle raw material is evenly scattered in the small particle raw material, thereby avoiding the segregation phenomenon of the raw material entering the roll gap, ensuring the even distribution of the big and small particles of the raw material entering the roll gap, ensuring the even stress of the roll surfaces of the two rollers, and avoiding the damage of the roll surfaces; meanwhile, loose raw materials are collected and extruded to form a compact material layer which is fully distributed in the whole roll gap, so that the roll surfaces of the two rollers are uniformly stressed in the extrusion process, and the damage of the roll surfaces is avoided.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a left side sectional view of the present invention.

Fig. 5 is a three-dimensional view of the internal structure.

Fig. 6 is a view showing the start of the pressing of the roller.

Fig. 7 is a view during the roll pressing process.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 7, the utility model comprises a shell 1, two bilaterally symmetrical parallel rotating shafts 2 are inserted in the shell 1 in a front-back manner, rollers 3 for extrusion crushing are arranged in the shell 1 on the rotating shafts 2, and a feed inlet 4 is arranged in the middle of the upper surface of the shell 1; a feed hopper 5 is arranged above the shell 1, the lower opening of the feed hopper 5 is opposite to a feed port 4 on the shell 1, two screen meshes 6 which are bilaterally symmetrical and inclined towards the middle are arranged inside the feed hopper 5, the upper ends of the two screen meshes 6 are hinged on the feed hopper 5, and the screen meshes 6 can swing up and down in a reciprocating manner around a hinged point; a U-shaped material receiving bin 7 is fixed at the middle position inside the feeding hopper 5, a material shifting toothed plate 8 capable of moving back and forth to flatten raw materials is arranged in the U-shaped material receiving bin 7, a plurality of material leaking holes 9 are formed in the bottom plate of the U-shaped material receiving bin 7, when two screen meshes 6 swing up and down to screen, small-particle materials can directly fall to the lower portion of the screen meshes 6, and large-particle raw materials can fall into the U-shaped material receiving bin 7 all the time.

In order to prevent the raw materials from directly entering the material receiving bin 7 during feeding, an inverted V-shaped first baffle 10 which is fixed on the feed hopper 5 from front to back is arranged above the middle of the two screens 6, and the screens 6 are always spaced from the first baffle 10 when swinging up and down; during the feeding, the raw materials falls from the top, the raw materials that directly fall on screen cloth 6 can separate the raw materials through the screening of screen cloth, the raw materials of small granule can directly fall the lower part of screen cloth 6, the raw materials of large granule can roll and fall in the U-shaped connects the material storehouse 7, and the raw materials that fall on first baffle 10 can be through first baffle 10 with the raw materials water conservancy diversion to screen cloth 6 on, separate through the screening of screen cloth 6 to the raw materials, because the existence of first baffle 10, can avoid the raw materials of intermediate position directly to fall in the U-shaped connects the material storehouse 7.

In order to enable the screen 6 to swing up and down in a reciprocating manner around a hinge point and realize the screening effect on raw materials, a front through groove 11 and a rear through groove 11 are formed in the middle of the feed hopper 5, a transverse shaft 12 capable of sliding up and down in the through groove 11 is inserted into the through groove 11, a longitudinal shaft 13 is fixed in the middle of the transverse shaft 12, the top end of the longitudinal shaft 13 is hinged with a first connecting rod 14 which is symmetrical left and right, the other end of the first connecting rod 14 is hinged with the lower end of the screen 6 on the corresponding side, two vertically telescopic cylinders 15 are respectively arranged at two ends of the transverse shaft 12, the two cylinders 15 are respectively fixed on the front outer wall and the rear outer; vertical flexible drive cross axle 12 through cylinder 15 reciprocates to slide from top to bottom in logical groove 11, and axis of ordinates 13 also reciprocates from top to bottom along with cross axle 12, and axis of ordinates 13 drives screen cloth 6 through first connecting rod 14 and can reciprocate from top to bottom around the pin joint, and when the raw materials fell on the screen cloth, can realize the screening to the raw materials, the tiny particle raw materials fell in screen cloth 6 below, and the large granule raw materials fell in U-shaped connects the material storehouse 7 along the direction of screen cloth slope.

In order to prevent the raw material from leaking out of the through groove 11, two second baffles 16 tightly attached to the front and rear inner walls of the feeding hopper 5 are arranged inside the feeding hopper 5, and the centers of the second baffles 16 are fixed on the transverse shaft 12; the second baffle 16 can always cover the through groove 11 when moving up and down along the transverse shaft 12.

The material shifting toothed plates 8 are symmetrical front and back, each material shifting toothed plate 8 is a transverse square rod, a section of the middle of each square rod is a round rod, a plurality of shifting rods are vertically fixed on the lower end face of each square rod, and intervals are reserved among the shifting rods; the left inner wall and the right inner wall of the U-shaped receiving bin 7 are both provided with guide grooves 17 in the front-back direction, and two ends of the material shifting toothed plate 8 are arranged in the guide grooves 17; the material leaking holes 9 are uniformly distributed on the whole bottom plate of the U-shaped material receiving bin 7 in a matrix form, and the aperture of the material leaking holes 9 is larger than the particle size of a large-particle raw material; the lower end of the longitudinal shaft 13 is hinged with two second connecting rods 18 which are symmetrical front and back, and the other ends of the two second connecting rods 18 are respectively hinged on a round rod in the middle of one material shifting toothed plate 8 on the corresponding side; the vertical axis 13 reciprocates up and down to drive the material shifting toothed plate 8 to move back and forth along the guide groove 17 through the second connecting rod 18, the material shifting toothed plate 8 can shift large-particle raw materials in the material receiving bin 7 back and forth, so that the large-particle raw materials can be spread out in the material receiving bin 7 back and forth, uniformly fall down from the material leakage holes 9 and scatter in small-particle raw materials screened out by the screen 6 to form a material layer with uniform large and small particles.

The left side and the right side of the feed hopper 5 are contracted towards the middle to form a shape with a wide upper part and a narrow lower part, and raw materials fall from a wide opening at the upper part and are collected at a narrow opening at the lower part; because the raw materials have gravity, the raw materials gathered at the narrow opening at the lower part have certain material pressure, and form forced feeding when entering the roll gap.

The two rollers 3 are two waist rollers which are matched with each other, and a roller gap is formed between the two rollers 3 at intervals; because the interval between two running rollers 3 is from the middle to upper and lower both sides width more and more, consequently when two running rollers 3 synchronous rotation in opposite directions, the raw materials that fall on running roller 3 can receive the extrusion of two running rollers 3 and form closely knit bed, and the extrusion and the friction between the granule through two running rollers 3 are broken.

When the utility model is used, the raw material is firstly put into the feed hopper 5 from the upper part and directly or indirectly falls on the screen meshes 6 at the two sides through the diversion guide effect of the first baffle plate 10, thus the raw material can be prevented from directly entering the material receiving bin 7; then, the transverse shaft 12 is driven to slide up and down in the through groove 11 in a reciprocating manner through the vertical extension of the air cylinder 15, the longitudinal shaft 13 also moves up and down in a reciprocating manner along with the transverse shaft 12, the longitudinal shaft 13 drives the screen 6 to swing up and down in a reciprocating manner around a hinge point through the first connecting rod 14, the raw material falls on the screen 6, the screening of the raw material is realized through the up and down reciprocating swing of the screen 6 around the hinge point, small particles fall below the screen 6, and large particles fall in the material receiving bin 7 along the inclined direction of the screen; the longitudinal shaft 13 moves up and down in a reciprocating manner along with the transverse shaft 12, the longitudinal shaft 13 drives the material shifting toothed plate 8 to move back and forth along the guide groove 17 through the second connecting rod 18, and the material shifting toothed plate 8 can shift large-particle raw materials in the material receiving bin 7 back and forth, so that the large-particle raw materials can be spread back and forth in the material receiving bin 7, fall from the material leakage holes 9 and uniformly scatter in small-particle raw materials screened by the screen 6 to form a material layer with uniform large and small particles; thus, the raw material entering the roll gap has uniform size and particles, and the roll surfaces of the two rollers are uniformly stressed, so that the roll surfaces are prevented from being damaged; the raw materials fall from an upper wide opening in the feed hopper 5 and are collected at a lower narrow opening, and because the raw materials have gravity, the raw materials collected at the lower narrow opening have certain material pressure and form forced feeding when entering a roll gap; because the interval between two running rollers 3 is from the middle to upper and lower both sides width more and more, consequently when two running rollers 3 synchronous rotation in opposite directions, the raw materials that fall on running roller 3 can receive the extrusion of two running rollers 3 and form closely knit bed, and the extrusion and the friction between the granule through two running rollers 3 are broken.

The utility model connects the upper end of the longitudinal shaft 13 with the lower end of the screen 6 through the first connecting rod 14, and converts the up-and-down reciprocating movement of the longitudinal shaft 13 into the up-and-down reciprocating swing of the screen 6 around the hinge point, thereby realizing the screening of the raw materials; the lower end of the longitudinal shaft 13 is connected with the material shifting toothed plate 8 through a second connecting rod 18, the up-and-down reciprocating movement of the longitudinal shaft 13 is converted into the forward-and-backward movement of the material shifting toothed plate 8 along the guide groove 17, and the material shifting toothed plate 8 can shift large granular raw materials in the material receiving bin 7 forward and backward so that the large granular raw materials can be flattened forward and backward in the material receiving bin 7; large-particle raw materials uniformly fall from the material leakage holes 9 and are scattered in small-particle raw materials screened out by the screen 6 to form a material layer with uniform large and small particles; thus, the raw materials entering the roll gap have uniform size and particles, and the roll surfaces of the two rollers 3 are stressed uniformly, so that the roll surfaces are prevented from being damaged.

The utility model collects the raw material falling from the upper wide opening at the lower narrow opening through the feed hopper 5 with a wide upper part and a narrow lower part, so that the feeding has certain material pressure, forced feeding can be formed when the raw material enters the roll gap, and the raw material is crushed by the extrusion of the two waist-wheel-shaped rollers 3 and the friction between particles; meanwhile, the raw materials collected at the narrow opening below the feed hopper 5 are fully distributed in the whole roll gap, so that the roll surfaces of the two rollers 3 are uniformly stressed, and the damage of the roll surfaces is avoided.

The utility model separates the big and small particles from the raw material by screening, and then flattens the large particle raw material along the front and back direction, and the large particle raw material is evenly scattered in the small particle raw material, thereby avoiding the segregation phenomenon of the raw material entering the roll gap, ensuring the even distribution of the big and small particles of the raw material entering the roll gap, ensuring the even stress of the roll surfaces of the two rollers 3, and avoiding the damage of the roll surfaces; meanwhile, loose raw materials are collected and extruded to form a compact material layer which is fully distributed in the whole roll gap, so that the roll surfaces of the two rollers 3 are uniformly stressed in the extrusion process, and the damage of the roll surfaces is avoided.

Claims

1. A roller press comprises a shell (1) and is characterized in that two bilaterally symmetrical parallel rotating shafts (2) are inserted into the shell (1) in a front-back manner, rollers (3) which are arranged in the shell (1) and used for extruding and crushing are mounted on the rotating shafts (2), and a feeding hole (4) is formed in the middle of the upper surface of the shell (1); a feed hopper (5) is arranged above the shell (1), the lower opening of the feed hopper (5) is over against a feed inlet (4) on the shell (1), two screen meshes (6) which are bilaterally symmetrical and inclined towards the middle are arranged in the feed hopper (5), the upper ends of the two screen meshes (6) are hinged on the feed hopper (5), and the screen meshes (6) can swing up and down in a reciprocating manner around a hinged point; feed hopper (5) inside intermediate position is fixed with a U-shaped and connects feed bin (7), the U-shaped connects to be equipped with in feed bin (7) and can the back-and-forth movement with the material shakedown dial material pinion rack (8), the U-shaped connects to open on the bottom plate of feed bin (7) to have a plurality of hourglass material holes (9), when two screen cloth (6) luffing motion carried out the screening, the material of tiny granule can directly drop the lower part of screen cloth (6), the large granule raw materials can drop in U-shaped connects feed bin (7) all the time.

2. A roller press according to claim 1, characterised in that an inverted V-shaped first baffle (10) is arranged above the middle of the two screens (6) and fixed to the feed hopper (5) in front and behind, the screens (6) always being spaced from the first baffle (10) when swinging up and down.

3. The roller press according to claim 1, characterized in that a front through groove (11) and a rear through groove (11) are formed in the middle of the feed hopper (5), a transverse shaft (12) capable of sliding up and down in the through groove (11) is inserted into the through groove (11), a longitudinal shaft (13) is fixed in the middle of the transverse shaft (12), first connecting rods (14) which are symmetrical left and right are hinged to the top ends of the longitudinal shaft (13), the other ends of the first connecting rods (14) are hinged to the lower ends of the screen meshes (6) on the corresponding side, two vertically telescopic cylinders (15) are respectively arranged at two ends of the transverse shaft (12), the two cylinders (15) are respectively fixed on the front outer wall and the rear outer wall of the feed hopper (5), and telescopic rod ends of the two cylinders (.

4. The roller press as claimed in claim 1, characterized in that two second baffles (16) are arranged in the feed hopper (5) and are tightly attached to the front and rear inner walls of the feed hopper (5), and the centers of the second baffles (16) are fixed on the transverse shaft (12); the second baffle (16) can always cover the through groove (11) when moving up and down along with the transverse shaft (12).

5. The roller press according to claim 1, characterized in that the material shifting toothed plates (8) are two and symmetrical front and back, each material shifting toothed plate (8) is a transverse square rod, a section in the middle of the square rod is a round rod, a plurality of shift rods are vertically fixed on the lower end surface of the square rod, and intervals are reserved among the shift rods; guide grooves (17) in the front-back direction are formed in the left inner wall and the right inner wall of the U-shaped material receiving bin (7), and two ends of the material shifting toothed plate (8) are arranged in the guide grooves (17); the material leaking holes (9) are uniformly distributed on the whole bottom plate of the U-shaped material receiving bin (7) in a matrix manner, and the aperture of the material leaking holes (9) is larger than the particle size of the large-particle raw material; the lower end of the longitudinal shaft (13) is hinged with two second connecting rods (18) which are symmetrical front and back, and the other ends of the two second connecting rods (18) are respectively hinged on a round rod in the middle of one material shifting toothed plate (8) on the corresponding side.

6. A roller press according to claim 1, characterised in that the feed hopper (5) is tapered towards the middle to a shape which is wider at the top and narrower at the bottom, and the material falls from the wide top and is collected at the narrow bottom.

7. A roller press according to claim 1, characterized in that the rollers (3) are two cooperating sheaves, the space between the rollers (3) forming a nip.