CN210935149U

CN210935149U - High-pressure roller mill

Info

Publication number: CN210935149U
Application number: CN201921813322.2U
Authority: CN
Inventors: 俞立勇
Original assignee: Tangshan Xintian Industry Co ltd
Current assignee: Tangshan Xintian Industry Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-07
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a high pressure roller mill, grind roller, first lead screw and second lead screw including frame, first grinding roller, second, the leftmost side of frame is provided with first lead screw motor and second lead screw motor, first lead screw motor and second lead screw motor's right side respectively with first lead screw and second lead screw connection, two lead screw right side and slider threaded connection, slider slidable installs on the frame, first grinding roller is rotatable to be installed in the recess on slider right side, the rotatable installation of second grinding roller cooperatees with first grinding roller on the mounting bracket, mounting bracket fixed mounting be in the right side of frame. The utility model discloses a first grinding roller of lead screw drive, the structure is more compact, the installation of being convenient for, the function is reliable, low cost.

Description

High-pressure roller mill

Technical Field

The utility model relates to a mining machinery especially relates to a high pressure roller mill.

Background

The high pressure roller mill is also called a roller press or an extrusion mill. The novel energy-saving crushing equipment has the advantages of high efficiency, low energy consumption, light abrasion, low noise, convenience in operation and the like. The high-pressure roller mill mainly comprises a feeding device, a material level control device, a pair of rollers, a transmission device (a motor, a belt pulley and a gear shaft), a hydraulic system, a transverse leakage-proof device and the like. One of the two rollers is a fixed roller on a support bearing, and the other is a movable roller which can move in the horizontal direction in the inner cavity of the machine base. The two rollers rotate in opposite directions at the same speed, and the sealing devices at the two ends of the rollers can prevent the materials from being discharged from the transverse gaps of the rollers under a high-pressure path. The material is uniformly fed from the upper part of the roller press through a feeding device (gravity or a prepressing screw feeder), and under the action of two rollers rotating in opposite directions, the material is pulled into a high-pressure area at a pull-in angle to be crushed, so that continuous high-pressure material layer crushing is realized. In the upper part of the high-pressure zone, all the material is first subjected to a single-particle comminution similar to a roll crusher. Along with the rotation of the two rollers, the material moves downwards, the void ratio among the particles is reduced, and the crushing of the single particles gradually becomes the extrusion crushing of the material layer. The layer of material is formed under high pressure, which forces the material to be pressed against each other, whereby even very small particles are subjected to this pressing process. This is a major reason for the large size reduction. The precondition of the material layer crushing is that a layer of material must exist between two rollers, and the strength of the crushing action is mainly determined by the pressure between particles. Since the pressure stress between the two rollers is as high as 50-300 MPa (about 150MPa is usually used), most of the crushed materials are pressed into cakes when passing through the roller gap, wherein a large amount of fine powder is contained, and a large amount of cracks are generated in particles, which is very beneficial to further grinding.

During the normal operation of the high-pressure roller mill, the extrusion crushing force applied to the movable roller is transmitted to the fixed roller through the material layer, and the ineffective impact and friction in the ball mill are avoided. Tests show that under the condition of material layer crushing, the energy consumption of pure pressure crushing is much lower than that of shearing and impact crushing, and most of energy is used for crushing, so that the energy utilization rate is high. This is the main reason for the energy saving of the high pressure roller mill. Therefore, how to develop a novel high-pressure roller mill is convenient to install and adjust, and becomes a technical problem to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high pressure roller mill, this structure is compacter, and is rationally distributed, the installation of being convenient for is adjusted. The utility model adopts the following technical scheme:

the utility model relates to a high pressure roller mill, grind roller, first lead screw and second lead screw including frame, first grinding roller, second, the leftmost side of frame is provided with first lead screw motor and second lead screw motor, first lead screw motor, second lead screw motor's work end respectively with first lead screw, second screw connection, the right side threaded connection of first lead screw, second lead screw has the slider, slider slidable installs on the frame, first grinding roller is rotatable to be installed in the recess on slider right side, the rotatable installation of second grinding roller is on the mounting bracket, the second grind the roller with first grinding roller cooperatees, mounting bracket fixed mounting is in the right side of frame.

Further, be provided with first motor power on the slider, first motor power passes through the transmission drive first grinding roller rotates, be provided with second motor power on the mounting bracket, second motor power passes through the transmission drive second grinding roller and rotates.

Furthermore, a discharge port is formed in the top surface of the base below the position between the first grinding roller and the second grinding roller.

Furthermore, the two ends of the first grinding roller are installed on the sliding block through pressing blocks, and the two ends of the second grinding roller are installed on the mounting frame through pressing blocks.

Furthermore, the machine base is provided with a sliding rail, the sliding block is provided with a sliding groove, the sliding groove is matched with the sliding rail, the first lead screw motor and the second lead screw motor are started to rotate through the first lead screw and the second lead screw, and the sliding block is driven to horizontally move along the sliding rail through the change of the threaded connection.

Furthermore, threaded holes matched with the first lead screw and the second lead screw are formed in the sliding block, and the length of each threaded hole is larger than the moving distance of the sliding block on the sliding rail.

Compared with the prior art, the utility model discloses a beneficial technological effect: the utility model discloses a first grinding roller horizontal migration of lead screw drive, it is higher to adjust the precision to have self-locking function. The utility model discloses the structure is compacter, and is rationally distributed, the installation of being convenient for is adjusted.

Drawings

The invention will be further explained with reference to the following description of the drawings:

FIG. 1 is a schematic view of a high-pressure roller mill according to the present invention;

fig. 2 is a schematic plan view of the high-pressure roller mill of the present invention.

Description of reference numerals: 1. a machine base; 2. a first grinding roller; 3. a second grinding roller; 4. a first lead screw motor; 5. a second lead screw motor; 6. a first lead screw; 7. a second lead screw; 8. a slide rail; 9. a slider; 10. a discharge port; 11. a mounting frame; 12. and (7) briquetting.

Detailed Description

As shown in fig. 1-2, a high-pressure roller mill comprises a stand 1, a first grinding roller 2, a second grinding roller 3, a first lead screw 6 and a second lead screw 7, wherein the leftmost side of the stand 1 is provided with a first lead screw motor 4 and a second lead screw motor 5, working ends of the first lead screw motor 4 and the second lead screw motor 5 are respectively connected with the first lead screw 6 and the second lead screw 7, right side threads of the first lead screw 6 and the second lead screw 7 are connected with a sliding block 9, the sliding block 9 is slidably mounted on the stand 1, the first grinding roller 2 is rotatably mounted in a groove on the right side of the sliding block 9, the second grinding roller 3 is rotatably mounted on a mounting frame 11, the second grinding roller 3 is matched with the first grinding roller 2, and the mounting frame 11 is fixedly mounted on the right side of the stand.

Be provided with first power motor on the slider 9, first power motor passes through the transmission drive first grinding roller 2 rotates, be provided with second power motor on the mounting bracket 11, second power motor passes through transmission drive second grinding roller 3 and rotates. The first grinding roll 2 rotates clockwise, and the second grinding roll 3 rotates counterclockwise. The material enters the next procedure from the position between the first grinding roller 2 and the second grinding roller 3 through a discharge port 10 arranged on the machine base 1 below.

Two ends of the first grinding roller 2 are mounted on the sliding block 9 through pressing blocks 12, and two ends of the second grinding roller 3 are mounted on the mounting rack 11 through pressing blocks 12.

The machine base is characterized in that a sliding rail 8 is arranged on the machine base 1, a sliding groove is formed in the sliding block 9, the sliding groove is matched with the sliding rail 8, the first lead screw motor 4 and the second lead screw motor 5 are started to rotate through the first lead screw 6 and the second lead screw 7, and the sliding block 9 is driven to horizontally move along the sliding rail 8 through the change of threaded connection.

Threaded holes matched with the first lead screw 6 and the second lead screw 7 are formed in the sliding block, and the length of each threaded hole is larger than the moving distance of the sliding block 9 on the sliding rail 8. The smooth movement of the sliding block 9 on the sliding rail 8 is ensured, and the first lead screw 6 and the second lead screw 7 can not fall off from the left side of the sliding block 9 or contact with the right side of the sliding block 9

The first lead screw motor 4 and the second lead screw motor 5 are servo motors, and synchronism of the first lead screw 6 and the second lead screw 7 is guaranteed.

Furthermore, the thread on the first lead screw 6 is left-handed, the thread on the second lead screw 7 is right-handed, and the rotating directions of the first lead screw 6 and the second lead screw 7 are opposite. The lead screw has self-locking property, and the slide block 9 is driven to move by the lead screws with different thread turning directions, so that the self-locking effect is better.

Furthermore, a lead screw driving motor is used for driving a plurality of lead screws through a rotating device, and the number of the lead screws is at least two. The asynchronous operation of different servo motors is avoided, and the influence on equipment is avoided.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A high-pressure roller mill is characterized in that: comprises a machine base (1), a first grinding roller (2), a second grinding roller (3), a first lead screw (6) and a second lead screw (7), wherein the leftmost side of the machine base (1) is provided with a first lead screw motor (4) and a second lead screw motor (5), the working ends of the first lead screw motor (4) and the second lead screw motor (5) are respectively connected with the first lead screw (6) and the second lead screw (7), the right sides of the first lead screw (6) and the second lead screw (7) are in threaded connection with a sliding block (9), the sliding block (9) is slidably arranged on the machine base (1), the first grinding roller (2) is rotatably arranged in a groove on the right side of the sliding block (9), the second grinding roller (3) is rotatably arranged on a mounting frame (11), and the second grinding roller (3) is matched with the first grinding roller (2), the mounting rack (11) is fixedly mounted on the right side of the machine base (1).

2. The high pressure roller mill according to claim 1, characterized in that: be provided with first motor power on slider (9), first motor power passes through the transmission drive first grinding roller (2) rotate, be provided with second motor power on mounting bracket (11), second motor power passes through transmission drive second grinding roller (3) and rotates.

3. The high pressure roller mill according to claim 1, characterized in that: and a discharge port (10) is formed in the top surface of the base (1) below the position between the first grinding roller (2) and the second grinding roller (3).

4. The high pressure roller mill according to claim 1, characterized in that: the two ends of the first grinding roller (2) are installed on the sliding block (9) through pressing blocks (12), and the two ends of the second grinding roller (3) are installed on the mounting rack (11) through the pressing blocks (12).

5. The high pressure roller mill according to claim 1, characterized in that: be provided with slide rail (8) on frame (1), be provided with the spout on slider (9), the spout with slide rail (8) phase-match, first lead screw motor (4), second lead screw motor (5) start-up through first lead screw (6), second lead screw (7) rotary motion take place to change through threaded connection and drive slider (9) are followed slide rail (8) horizontal migration.

6. The high pressure roller mill according to claim 1, characterized in that: threaded holes matched with the first lead screw (6) and the second lead screw (7) are formed in the sliding block, and the length of each threaded hole is larger than the moving distance of the sliding block (9) on the sliding rail (8).