CN219816621U

CN219816621U - Mineral separation system

Info

Publication number: CN219816621U
Application number: CN202321222013.4U
Authority: CN
Inventors: 周贤武; 潘庆; 胡自强; 孟庆霞; 季晓超; 吴强波; 何文兵; 冯骥驰; 陈钰
Original assignee: Jiangxi Naipu Mining Machinery Co ltd
Current assignee: Jiangxi Naipu Mining Machinery Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-10-13
Anticipated expiration: 2033-05-19

Abstract

The embodiment of the utility model provides a mineral separation system, which comprises a feed hopper, a ball mill cylinder screen, a mixing pump pool, a cyclone group, a flotation machine and a slurry pump; the feeding hopper is connected with a feeding hole of the ball mill, and a ball mill cylinder screen is assembled on the tail part of the ball mill, wherein the pore sizes of all the sieve pores on the ball mill cylinder screen are positioned in a first preset pore size range; the mixing pump pool is arranged below the ball mill cylinder screen and is used for collecting materials falling from the ball mill cylinder screen; the discharge port of the ball mill cylinder screen is connected with the feed port of the cyclone group; the discharge port of the cyclone group is connected with the feed port of the mixing pump pool, the feed port of the ball mill and the feed port of the flotation machine at the same time, and the cyclone group is used for providing sand setting materials for the mixing pump pool and the ball mill and overflow materials for the flotation machine; the discharge gate in compounding pump pond is connected with the feed inlet of sediment stuff pump, and the discharge gate of sediment stuff pump is connected with the feed inlet of ball mill.

Description

Mineral separation system

Technical Field

The utility model relates to the technical field of mineral separation operation, in particular to a mineral separation system.

Background

In the ore dressing processes of a plurality of mines at home and abroad, a single ball mill is still adopted as ore grinding equipment in a part of ore grinding processes, the ball milling process is stable in production operation, and the requirement on a production control system is not high. However, in actual production operation, in order to avoid excessive material on the ball mill cylinder screen from causing excessive manual consumption, the sieve pore diameter on the ball mill cylinder screen is often opened very much, and the amount of the material on the screen is very low. Under such conditions, however, the cylindrical screen of the ball mill has lost its screening action, which can lead to a large amount of coarse particles reaching the downstream flow along with the cyclone feed pump, thereby affecting the processing capacity of the equipment in the downstream beneficiation flow and reducing the service life of the equipment (causing great wear to the slurry pump and cyclone overflow, thereby reducing the service lives of the slurry pump and cyclone). If the sieve pore diameter of the cylindrical sieve of the ball mill is reduced, although large-particle minerals in the cyclone feed pump can be effectively reduced, the materials on the cylindrical sieve of the ball mill are difficult to treat, manual shoveling is needed, a large amount of manpower and material resources are consumed (the materials on the sieve directly fall onto the passageway below, which is equivalent to the fact that the materials directly fall out of the ore dressing system, and the materials on the passageway need to be manually shoveled every day, so that a large amount of manpower and material resources are consumed).

Accordingly, the prior art has drawbacks and needs to be improved and developed.

Disclosure of Invention

The embodiment of the utility model provides a mineral separation system, which not only can ensure that a cylindrical screen of a ball mill keeps a screening function and reduce abrasion of large-size materials on a slurry pump overflow piece and a cyclone overflow piece, but also can utilize the materials falling from the cylindrical screen of the ball mill, and can reduce manpower and material resources while reasonably utilizing resources.

The embodiment of the utility model provides a mineral separation system, which comprises a feed hopper, a ball mill cylinder screen, a mixing pump pool, a cyclone group, a flotation machine and a slurry pump;

the feeding hopper is connected with a feeding hole of the ball mill, and the ball mill cylinder screen is assembled on the tail part of the ball mill, wherein the pore sizes of all the sieve pores on the ball mill cylinder screen are positioned in a first preset pore size range;

the mixing pump pool is arranged below the ball mill cylinder screen and is used for collecting materials falling from the ball mill cylinder screen;

the discharge port of the ball mill cylinder screen is connected with the feed port of the cyclone group;

the discharge port of the cyclone group is simultaneously connected with the feed port of the mixing pump pool, the feed port of the ball mill and the feed port of the flotation machine, and the cyclone group is used for providing sand setting materials for the mixing pump pool and the ball mill and overflow materials for the flotation machine;

the discharge gate in compounding pump pond with the feed inlet of sediment stuff pump is connected, the discharge gate of sediment stuff pump with the feed inlet of ball mill is connected.

In the beneficiation system provided by the embodiment of the utility model, the cylindrical screen of the ball mill is provided with a plurality of screen holes with different pore sizes.

In the beneficiation system provided by the embodiment of the utility model, the mixing pump tank is provided with the screen, and the screen is used for screening broken steel balls in the mixing pump tank.

The beneficiation system provided by the embodiment of the utility model further comprises a cyclone sand setting introduction pipeline;

and a discharge port of the cyclone group is connected with a feed port of the mixing pump pool through a cyclone sand setting introduction pipeline.

In the beneficiation system disclosed by the embodiment of the utility model, the cyclone sand setting introduction pipeline is provided with the flushing clear water pipeline for flushing the cyclone sand setting introduction pipeline, so that the cyclone sand setting introduction pipeline is prevented from being blocked by sand setting materials.

In the beneficiation system provided by the embodiment of the utility model, the discharge port of the slurry pump and the cyclone sand setting introduction pipeline are provided with the electromagnetic flowmeter and the pneumatic knife gate valve, and the electromagnetic flowmeter and the pneumatic knife gate valve are used for adjusting the amount of sand setting materials entering the mixing pump tank through the cyclone sand setting introduction pipeline.

In the beneficiation system provided by the embodiment of the utility model, the cyclone sand setting introduction pipeline has a certain inclination angle, so that sand setting materials in the cyclone group can enter the mixing pump pool in a self-flowing mode.

In the beneficiation system provided by the embodiment of the utility model, the cyclone sand setting introduction pipeline is made of wear-resistant materials.

In the beneficiation system provided by the embodiment of the utility model, the slurry pump comprises a first slurry pump and a second slurry pump;

the first slurry pump is a slurry pump in use, and the second slurry pump is a standby slurry pump. The beneficiation system provided by the embodiment of the utility model further comprises a slurry pump discharging pipeline; and a discharge port of the slurry pump is connected with a feed port of the ball mill through a slurry pump discharge pipeline.

According to the beneficiation system provided by the embodiment of the utility model, the size of the sieve pore diameter on the ball mill cylinder sieve is set to be smaller, so that the ball mill cylinder sieve can keep the sieving function, the problem that large-size materials enter a slurry pump and a cyclone is solved, and the abrasion of the large-size materials to the slurry pump overflow piece and the cyclone overflow piece can be reduced. In addition, the mineral separation system provided by the embodiment of the utility model is additionally provided with the mixing pump pool on the basis of the existing mineral separation system and is used for collecting the materials falling from the cylindrical screen of the ball mill, so that resources can be reasonably utilized, and the manpower and material resources required by removing the falling materials can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a beneficiation system provided by an embodiment of the present utility model.

Reference numerals illustrate:

10-hopper 20-ball mill 30-ball mill cylinder screen

40-mixing pump pool 50-cyclone group 60-flotation machine

70-slurry pump 80-cyclone sand setting introducing pipeline 90-clear water flushing pipeline

701-first slurry pump 702-second slurry pump 702 1000-beneficiation system

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The embodiment of the utility model provides a mineral separation system. Referring to fig. 1, a beneficiation system 1000 comprises a hopper 10, a ball mill 20, a ball mill cylindrical screen 30, a mixing pump basin 40, a cyclone bank 50, a flotation machine 60, and a slurry pump 70.

The hopper 10 is connected with a feed inlet of the ball mill 20, and the ball mill cylinder screen 30 is assembled on the tail of the ball mill 20, wherein the sizes of all the sieve pore diameters on the ball mill cylinder screen 30 are within a first preset pore diameter range.

Wherein, the ball mill cylinder screen 30 is assembled on the tail of the ball mill 20 and axially rotates along with the ball mill 20.

Wherein, the ball mill cylinder screen 30 is provided with a plurality of screen holes, and after the materials in the hopper 10 enter the ball mill 20 from the feed inlet of the ball mill 20, the ball mill cylinder screen 30 screens the materials in the ball mill 20 through the screen holes on the ball mill cylinder screen 30.

For example, the ball mill cylinder screen 30 of the embodiment of the utility model can effectively remove large particles with the particle size of more than 10mm, and avoid entering the next process.

It should be noted that, a person skilled in the art can set the first preset aperture range according to the actual situation, only needs to ensure that the ball mill cylindrical screen 30 can retain the screening function, and prevent large-size materials from entering the slurry pump 70 and the cyclone set 50, because the large-size materials (such as large ore particles and large broken steel balls) can cause larger abrasion to the slurry pump flow-through member and the cyclone flow-through member, thereby reducing the service lives of the slurry pump 70 and the cyclone set 50.

Wherein, the ball mill cylinder screen of the prior art only plays a role in removing steel balls and a small amount of stubborn stones in the process, and has no classification effect, and the ball mill cylinder screen 30 of the embodiment of the utility model can effectively play the classification function of the cylinder screen after the diameter of the screen holes is reduced, thereby achieving the purpose of pre-classification.

The mixing pump 40 is disposed below the ball mill cylinder screen 30, and is used for collecting materials falling from the ball mill cylinder screen 30.

Wherein, when the ore increases along with the exploitation degree of depth, ore hardness has the increase trend, and the ore granule increases, leads to the ore on the ball mill cylinder screen 30 to increase, and some ores just do not get into original pump sump through the sieve mesh on the mill cylinder screen 30 this moment, but drop on the passageway from the ball mill cylinder screen 30, need the manual work to shovel the ore that drops on the passageway this moment, not only will consume a large amount of manpower and materials, still waste resources. In the embodiment of the utility model, the mixing pump pond 40 is additionally arranged below the ball mill cylinder screen 30 and is used for collecting the ore falling from the ball mill cylinder screen 30 and then recycling the ore, so that resources can be reasonably utilized, and the manpower and material resources required by shoveling the falling ore can be reduced. Wherein the material on the cylindrical screen 30 of the ball mill falls into the mixing pump sump 40 by its own weight.

Wherein, the water supplementing part of the ball mill 20 can be introduced into the mixing pump tank 40 to ensure the water balance of the original beneficiation system and reduce the influence on the water balance of the original beneficiation process.

The discharge port of the ball mill cylinder screen 30 is connected with the feed port of the cyclone block 50.

The beneficiation system 1000 further comprises an old pump pool (not shown in the figure), after the materials come out of the sieve holes on the ball mill cylindrical sieve 30, the materials firstly enter the old pump pool, and then enter the cyclone group 50 from the old pump pool, namely, a discharge hole of the ball mill cylindrical sieve 30 is connected with a feed hole of the cyclone group 50 through the old pump pool.

The discharge port of the cyclone block 50 is simultaneously connected with the feed port of the mixing pump basin 40, the feed port of the ball mill 20 and the feed port of the flotation machine 60, and the cyclone block 50 is used for providing sand setting material to the mixing pump basin 40 and the ball mill 20 and overflow material to the flotation machine 60.

Wherein, after the material enters the cyclone set 50, the cyclone set 50 classifies the material into sand setting material and overflow material, and the overflow material directly enters the flotation machine 60.

The pre-classification of the cylindrical screen 30 of the ball mill reduces the coarse particle content of the feed material of the cyclone group 50, and improves the classification efficiency of the cyclone group 50, thereby improving the processing capacity of the ore grinding system 1000, and being beneficial to the subsequent flotation separation due to the reduction of the selected particle size.

The cyclone set 50 is used for providing the sand setting material for the mixing pump tank 40, and because the problem that a single large particle cannot be effectively pumped and the service life of a slurry pump flow passage member is too low is considered, the sand setting material in the cyclone set 50 is mixed with the large ore particle according to the ratio of 1:5 and then is conveyed into the slurry pump 70, so that the service life of the slurry pump flow passage member is ensured, and the energy consumption caused by material backflow is reduced to the greatest extent.

Wherein a small portion of the sand setting material in cyclone assembly 50 enters mixing pump sump 40 and a large portion is returned directly to ball mill 20.

The discharge port of the mixing pump tank 40 is connected with the feed port of the slurry pump 70, and the discharge port of the slurry pump 70 is connected with the feed port of the ball mill 20.

Wherein the material in the mixing pump basin 40 will enter the slurry pump 70 from the feed inlet of the slurry pump 70, and the slurry pump 70 will then return the material to the ball mill 20.

In some embodiments, the ball mill cylindrical screen 30 is provided with a plurality of screen holes of different pore sizes.

In some embodiments, a screen is provided in the mixing pump basin 40 for screening the crushed steel balls in the mixing pump basin 40.

Wherein, through setting up the screen cloth in compounding pump pond 40, the big broken steel ball of big broken steel ball in the compounding pump pond 40 can be sieved to avoid big broken steel ball to get into sediment stuff pump 70, destroy the overflow piece.

In some embodiments, the beneficiation system 1000 further comprises a cyclone sand inclusion introduction line 80, the discharge port of the cyclone bank 50 being connected to the feed port of the batch pump basin 40 through the cyclone sand inclusion introduction line 80.

In some embodiments, a clean water flushing line 90 is provided on the cyclone sand setting introduction line 80 for flushing the cyclone sand setting introduction line 80 to prevent the cyclone sand setting introduction line 80 from being blocked by sand setting material.

Wherein, the cyclone sand setting introducing pipeline 80 is provided with a clean water flushing pipeline 90, and clean water is introduced according to a certain flow rate to prevent the sand setting material from being blocked in the self-flowing process.

In some embodiments, electromagnetic flow meters and pneumatic knife gates are provided on the discharge port of slurry pump 70 and cyclone grit introduction line 80 for adjusting the amount of grit material entering the blender pump basin 40 through the cyclone grit introduction line 80.

Wherein, the sand setting material introduction amount can be adjusted at any time according to the material amount on the screen of the ball mill cylinder screen 30, so that the material amount on the screen of the ball mill cylinder screen 30 and the sand setting material introduction amount are kept at a certain ratio. Wherein, can connect into the main control system, realize the automatic control.

In some embodiments, the cyclone sand setting introduction line 80 has a tilt angle such that the sand setting material in the cyclone assembly 50 can enter the mixing pump basin 40 by gravity flow.

In some embodiments, the material of cyclone sand setting introduction line 80 is a wear resistant material.

The cyclone sand setting introducing pipeline 80 is made of wear-resistant materials, so that serious abrasion of the pipe wall caused by high sand setting material concentration is avoided.

In some embodiments, the beneficiation system 1000 further comprises a cylindrical screen oversize introduction conduit (not shown in the figures) to which the ball mill cylindrical screen 30 is connected, the cylindrical screen oversize introduction conduit being used to introduce material on the ball mill cylindrical screen 30 into the batch pump sump 40.

In some embodiments, beneficiation system 1000 further comprises a slurry pump discharge line (not shown) through which the discharge port of slurry pump 70 is connected to the feed port of ball mill 20.

One end of a slurry pump discharging pipeline is connected with the slurry pump 70, the other end of the slurry pump discharging pipeline is connected with a ball mill feeding port, and materials in the slurry pump 70 can enter the ball mill 20 through the slurry pump discharging pipeline.

In some embodiments, the slurry pump 70 includes a first slurry pump 701 and a second slurry pump 702, the first slurry pump 701 being the slurry pump in use, the second slurry pump 702 being the backup slurry pump.

Wherein, two slurry pumps 70 can be arranged, one is provided (the first slurry pump 701) and the other is provided (the second slurry pump 702), so that the pipeline blockage caused by the slurry pump fault is prevented, and meanwhile, the other slurry pump can also play a role in cleaning the pipeline when the use is stopped, and the ore pulp deposition is prevented.

Wherein, the slurry pump is additionally arranged to convey the oversize material of the cylindrical screen 30 of the ball mill, 40t/h can be processed, the conveying requirement of the maximum oversize material calculated by the system at present is met, and the processing capacity of the ball mill is improved by 20 days.

In summary, in the beneficiation system 1000 provided by the embodiment of the present utility model, the mesh aperture size on the ball mill cylindrical screen 30 is set to be smaller, so that the ball mill cylindrical screen 30 can retain the screening function, the problem that large-size materials enter the slurry pump and the cyclone is prevented, and further abrasion of the large-size materials to the slurry pump overflow piece and the cyclone overflow piece can be reduced. In addition, the mineral separation system 1000 provided by the embodiment of the utility model is added with the mixing pump pool 40 on the basis of the existing mineral separation system to collect the materials falling from the ball mill cylinder screen 30, so that resources can be reasonably utilized, and manpower and material resources required for shoveling the falling materials can be reduced.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description of a mineral separation system provided by the embodiment of the present utility model has been provided in detail, and specific examples are applied to illustrate the principle and implementation of the present utility model, and the above description of the embodiment is only used to help understand the technical solution and core idea of the present utility model; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The mineral separation system is characterized by comprising a feed hopper, a ball mill cylinder screen, a mixing pump pool, a cyclone group, a flotation machine and a slurry pump;

2. A beneficiation system in accordance with claim 1, wherein a plurality of said mesh openings of different pore sizes are provided on said ball mill cylindrical screen.

3. A beneficiation system according to claim 1, wherein a screen is provided in the mixing pump sump, the screen being used to screen crushed steel balls in the mixing pump sump.

4. A beneficiation system according to claim 1, further comprising a cyclone sand settling introduction line;

5. A beneficiation system according to claim 4, wherein a flushing clean water pipeline is arranged on the cyclone sand setting introduction pipeline for flushing the cyclone sand setting introduction pipeline to prevent the cyclone sand setting introduction pipeline from being blocked by sand setting materials.

6. A beneficiation system according to claim 4, wherein the discharge port of the slurry pump and the cyclone grit introduction line are provided with an electromagnetic flowmeter and a pneumatic knife gate valve for adjusting the amount of grit material entering the batch pump sump through the cyclone grit introduction line.

7. A beneficiation system in accordance with claim 4, wherein the cyclone sand removal introduction line has an inclination angle such that sand removal material in the cyclone bank can enter the batch pump sump by gravity flow.

8. A beneficiation system according to claim 4, wherein the material of the cyclone sand settling introduction line is a wear resistant material.

9. The beneficiation system of claim 1, wherein the slurry pumps comprise a first slurry pump and a second slurry pump;

the first slurry pump is a slurry pump in use, and the second slurry pump is a standby slurry pump.

10. The beneficiation system of claim 1, further comprising a slurry pump discharge line;

and a discharge port of the slurry pump is connected with a feed port of the ball mill through a slurry pump discharge pipeline.