CN212575785U

CN212575785U - Ore grinding grading system

Info

Publication number: CN212575785U
Application number: CN202020837911.0U
Authority: CN
Inventors: 孙海洋; 谢铎鸣; 王玉甫; 李大亮
Original assignee: Henan Faende Mining Co ltd
Current assignee: Henan Faende Mining Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-02-23
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a grinding classification system, which comprises a slurry tank, a slurry separator and a cyclone, wherein the slurry tank is communicated with the slurry separator through a first pipeline, one end of the first pipeline extends into the bottom of the slurry tank, and a slurry pump is arranged on the first pipeline; the residue and slurry separator comprises a cylindrical box body, a screen cylinder coaxial with the box body is arranged in the box body, and a first supporting plate and a second supporting plate which are circular are arranged on two sides of an inner cavity of the screen cylinder respectively. The utility model realizes automatic water replenishing and variable frequency speed regulation of the slurry pump according to the liquid level detection device, realizes automatic control, controls the pulp thickness and fineness within a certain range, and creates good conditions for the index stability of the flotation process; the separation of impurities from the ore pulp is realized, overlarge ores, steel balls and wood residues in the ore pulp are removed, adverse effects on grading and flotation equipment are avoided, and the phenomenon that the flotation index is deteriorated due to the circulation of the wood residues in a flotation system is avoided.

Description

Ore grinding grading system

Technical Field

The utility model relates to an ore grinding equipment technical field specifically is an ore grinding grading system.

Background

The existing ore grinding classification is generally controlled manually, and workers mainly operate according to production experience accumulated at ordinary times, so that various operation errors are easy to occur in production, or production indexes are reduced due to untimely adjustment. And the ore grinding and grading operation is controlled by the spiral classifier, the ore pulp is required to be replaced irregularly according to the use condition along with the abrasion of the large blade and the small blade, in addition, the ore pulp is attached to the large blade and the small blade in the use process of the spiral classifier and splashes out in the rotation process, so that the site sanitation is poor, the ore pulp still contains impurities such as oversize ore, steel balls and wood slag under the influence of the ore grinding quality, and the adverse effect is generated on the grading and flotation equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the existing defects, and provides a grinding classification system, which realizes automatic water replenishment and variable frequency speed regulation of a slurry pump according to a liquid level detection device, realizes automatic control, controls the concentration and fineness of ore pulp within a certain range, and creates good conditions for the index stability of a flotation process; the separation of impurities from the ore pulp is realized, oversized ores, steel balls and wood residues in the ore pulp are removed, adverse effects on classification and flotation equipment are avoided, and the problems in the background technology can be effectively solved.

In order to achieve the above object, the utility model provides a following technical scheme: a grinding classification system comprises a slurry pool, a slurry separator and a cyclone, wherein the slurry pool is communicated with the slurry separator through a first pipeline, one end of the first pipeline extends into the bottom of the slurry pool, and a slurry pump is mounted on the first pipeline; the slag-slurry separator comprises a cylindrical box body, a screen drum coaxial with the box body is arranged in the box body, a first supporting plate and a second supporting plate which are circular are arranged on two sides of an inner cavity of the screen drum respectively, the other end of a first pipeline penetrates through the box body and the supporting plates and extends into the screen drum, a motor is arranged on one side of the box body, and an output shaft of the motor penetrates through the box body and is connected with the second supporting plate; the cyclone is communicated with the residue-slurry separator through a second pipeline, one end of the second pipeline is communicated with a liquid inlet of the cyclone, and the other end of the second pipeline extends into a region between the outer wall of the screen cylinder and the inner wall of the box body; and an upper overflow port of the cyclone is communicated with flotation equipment through a third pipeline.

Preferably, the ore pulp pond is equipped with the moisturizing pipe, installs the solenoid valve on the moisturizing pipe, still be equipped with liquid level detection device in the ore pulp pond, liquid level detection device and solenoid valve linkage, liquid level detection device are the level gauge.

Preferably, the slurry pump is regulated by a frequency converter, and the frequency converter is linked with the liquid level detection device.

Preferably, a through hole for a first pipeline to penetrate through is formed in the center of the first support plate in the screen cylinder.

Preferably, an opening on one side of the box body is connected with a sealing plate in a sealing mode through a bolt, and a sealing bearing matched with an output shaft of the motor is arranged in the center of the sealing plate.

Compared with the prior art, the beneficial effects of the utility model are that: the ore grinding classification system comprises a grinding classification system 1) and an ore pulp pool, wherein a liquid level detection device is additionally arranged in the ore pulp pool, a frequency converter of a motor of a slurry pump is adjusted according to the liquid level detection device, and the rotating speed of the motor of the slurry pump is increased or decreased, so that the linkage of the motor of the slurry pump and the liquid level is realized; in addition, when the liquid level detection device detects that the liquid level is lower than a set value, the electromagnetic valve is opened to automatically supplement water, so that automatic control is realized, the concentration and the fineness of ore pulp are controlled within a certain range, the qualification rate of ore grinding products is ensured, and good conditions are created for the stability of indexes of a flotation process; 2) a slag-pulp separator is added to realize the separation of impurities from the ore pulp, remove oversize ores, steel balls and wood residues in the ore pulp, avoid the adverse effect on grading and flotation equipment, and avoid the deterioration of flotation indexes caused by the circulation of the wood residues in a flotation system.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure: the system comprises a water supplementing pipe 1, an electromagnetic valve 2, a slurry pool 3, a liquid level detection device 4, a slurry pump 5, a frequency converter 5-1, a pipeline I6, a slurry separator 7, a box 7-1, a support plate I7-2, a screen cylinder 7-3, a motor 7-4, a support plate II 7-5, a seal plate 7-6, a pipeline II 8, a pipeline III 9 and a swirler 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: an ore grinding grading system comprises an ore pulp tank 3, a slag-pulp separator 7 and a swirler 10, wherein the ore pulp tank 3 is used for containing ore pulp ground by a mill, the ore pulp tank 3 is communicated with the slag-pulp separator 7 through a pipeline I6, one end of the pipeline I6 extends into the bottom of the ore pulp tank 3, and a slag-pulp pump 5 is installed on the pipeline I6; the residue-slurry separator 7 comprises a cylindrical box body 7-1, a screen cylinder 7-3 coaxial with the box body 7-1 is arranged inside the box body 7-1, a first round supporting plate 7-2 and a second round supporting plate 7-5 are respectively arranged on two sides of an inner cavity of the screen cylinder 7-3, the other end of a first pipeline 6 penetrates through the box body 7-1 and the first round supporting plate 7-2 and extends into the screen cylinder 7-3, a motor 7-4 is arranged on one side of the box body 7-1, and an output shaft of the motor 7-4 penetrates through the box body 7-1 and is connected with the second round supporting plate 7-5; the cyclone 10 is communicated with the residue-slurry separator 7 through a second pipeline 8, one end of the second pipeline 8 is communicated with a liquid inlet of the cyclone 10, and the other end of the second pipeline 8 extends into a region between the outer wall of the screen cylinder 7-3 and the inner wall of the box body 7-1; an upper overflow port of the cyclone 10 is communicated with flotation equipment through a third pipeline 9;

the slurry pump 5 pumps the slurry in the slurry pool 3 into the screen cylinder 7-3 through the first pipeline 6, the motor 7-4 drives the screen cylinder 7-3 to rotate, the screen cylinder 7-3 separates impurities from the slurry, and oversized ores, steel balls and wood residues in the slurry are removed, so that adverse effects on subsequent equipment are avoided;

the ore pulp pond 3 is provided with a water replenishing pipe 1, the water replenishing pipe 1 is provided with an electromagnetic valve 2, a liquid level detection device 4 is also arranged in the ore pulp pond 3, the liquid level detection device 4 is linked with the electromagnetic valve 2, and the liquid level detection device 4 is a liquid level meter; the slurry pump 5 is regulated by a frequency converter 5-1, and the frequency converter 5-1 is linked with the liquid level detection device 4; the control mode is common knowledge and is not described again, and when the liquid level detection device 4 detects that the liquid level is lower than a set value, the electromagnetic valve 2 is opened to realize automatic water supplement; adjusting the motor frequency conversion of the slurry pump 5 according to the liquid level detection device 4 to realize the linkage of the motor of the slurry pump 5 and the liquid level, when the motor exceeds the liquid level within a certain range, increasing the motor speed of the slurry pump 5 by the frequency conversion of the frequency converter 5-1 to accelerate the pumping of the slurry, and when the motor is lower than the liquid level within a certain range, reducing the motor speed of the slurry pump 5 by the frequency conversion of the frequency converter 5-1 to slow the pumping of the slurry, thereby controlling the concentration and fineness of the slurry within a certain range, ensuring the qualification rate of ground ore products and creating good conditions for the index stability;

a through hole for a pipeline I6 to penetrate through is formed in the center of a supporting plate I7-2 in the screen cylinder 7-3, and the screen cylinder 7-3 can be radially supported;

an opening at one side of the box body 7-1 is hermetically connected with a sealing plate 7-6 through a bolt, a sealing bearing matched with an output shaft of the motor 7-4 is arranged at the center of the sealing plate 7-6, the sealing plate 7-6 is conveniently disassembled, and sundries in the screen drum 7-3 and the screen drum 7-3 are taken out and cleaned.

The working principle is as follows: when the automatic control device is used, ore pulp ground by the grinding machine enters the pulp tank 3, the pulp pump 5 pumps the ore pulp in the pulp tank 3 into the screen drum 7-3 through the first pipeline 6, the motor 7-4 drives the screen drum 7-3 to rotate, impurities are separated from the ore pulp by the screen drum 7-3, the filtered ore pulp enters the cyclone 10 through the second pipeline 8 to be classified, classified products enter the next-level flotation equipment through the third pipeline 9, the liquid level detection device 4 detects the liquid level in the pulp tank 3, when the liquid level is lower than a set value, water is automatically supplemented by opening the electromagnetic valve 2 to realize automatic control of the liquid level, the frequency converter 5-1 is adjusted according to the liquid level detection device 4, the motor of the pulp pump 5 is subjected to frequency conversion control, the rotating speed of the motor of the pulp pump 5 is increased and decreased, and the fineness of the ore pulp is.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding classification system is characterized in that: the slurry separation device comprises a slurry pool (3), a slurry separator (7) and a cyclone (10), wherein the slurry pool (3) is communicated with the slurry separator (7) through a first pipeline (6), one end of the first pipeline (6) extends into the bottom of the slurry pool (3), and a slurry pump (5) is installed on the first pipeline (6); the slag-slurry separator (7) comprises a cylindrical box body (7-1), a screen cylinder (7-3) coaxial with the box body is arranged in the box body (7-1), a first supporting plate (7-2) and a second supporting plate (7-5) which are circular are arranged on two sides of an inner cavity of the screen cylinder (7-3), the other end of a first pipeline (6) penetrates through the box body (7-1) and the first supporting plate (7-2) and extends into the screen cylinder (7-3), a motor (7-4) is arranged on one side of the box body (7-1), and an output shaft of the motor (7-4) penetrates through the box body (7-1) and is connected with the second supporting plate (7-5); the cyclone (10) is communicated with the residue-slurry separator (7) through a second pipeline (8), one end of the second pipeline (8) is communicated with a liquid inlet of the cyclone (10), and the other end of the second pipeline (8) extends into a region between the outer wall of the screen cylinder (7-3) and the inner wall of the box body (7-1); and an upper overflow port of the cyclone (10) is communicated with flotation equipment through a third pipeline (9).

2. A mill grading system according to claim 1, wherein: the ore pulp pond (3) are equipped with moisturizing pipe (1), install solenoid valve (2) on moisturizing pipe (1), still be equipped with liquid level detection device (4) in ore pulp pond (3), liquid level detection device (4) and solenoid valve (2) linkage, liquid level detection device (4) are the level gauge.

3. A mill grading system according to claim 2, wherein: the slurry pump (5) is regulated by a frequency converter (5-1), and the frequency converter (5-1) is linked with the liquid level detection device (4).

4. A mill grading system according to claim 1, wherein: and a through hole for a first pipeline (6) to penetrate through is formed in the center of a first supporting plate (7-2) in the screen drum (7-3).

5. A mill grading system according to claim 1, wherein: an opening at one side of the box body (7-1) is hermetically connected with a sealing plate (7-6) through a bolt, and a sealing bearing matched with an output shaft of the motor (7-4) is arranged at the center of the sealing plate (7-6).