CN212143038U

CN212143038U - Mine tailing dry discharging treatment system

Info

Publication number: CN212143038U
Application number: CN202020822476.4U
Authority: CN
Inventors: 周悦; 闫雷超; 鲁炜焘
Original assignee: Luanping Jianlong Mining Co ltd
Current assignee: Luanping Jianlong Mining Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-15
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a mine tailing dry discharge treatment system, which comprises an inclined plate thickener, a cyclone, a dewatering screen, a concentration tank and a disc filter; the cyclone is used for concentrating coarse magnetic separation tailings, the dewatering screen is used for dewatering underflow after concentration by the cyclone, oversize materials of the dewatering screen enter a tailing conveying belt, and the concentration tank is used for overflow of the cyclone and concentration of undersize materials of the dewatering screen; the inclined plate thickener is used for concentrating the tailings subjected to fine magnetic separation, the overflow of the inclined plate thickener enters a workshop for circulation, the underflow of the inclined plate thickener enters the cyclone, and the materials under the screen of the dewatering screen return to the cyclone. The utility model discloses an implement the whole grain level of tailing and arrange the system futilely, not only reduced the water consumption of carrying in the tailing, the annual electricity saving charge can reach several million yuan, and the benefit of economizing on electricity is especially obvious, has still solved wet-type tailing and has piled up the place problem, also can guarantee the continuity of mine production.

Description

Mine tailing dry discharging treatment system

Technical Field

The utility model relates to a mining equipment technical field specifically is a mine tailing dry row processing system.

Background

Along with the low grade of the iron ore resources of the magnetite mine, the beneficiation ratio is high, for example, 1200 ten thousand tons of iron ore is processed every year in a certain magnetite mine in Hebei province, the waste throwing rate of ore crushing operation is 65%, the wet tailing amount is about 300 ten thousand tons/year, the mine reaches the design elevation, and the requirement of continuous tailing discharge cannot be met. In order to solve the problem of tailing stockpiling and ensure the production continuity, the dry discharge treatment system for the mine tailings is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mine tailing is arranged processing system futilely to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dry discharge treatment system for mine tailings comprises an inclined plate thickener, a cyclone, a dewatering screen, a concentration tank and a disc filter; the cyclone is used for concentrating coarse magnetic separation tailings, the dewatering screen is used for dewatering underflow after concentration by the cyclone, oversize materials of the dewatering screen enter a tailing conveying belt, and the concentration tank is used for overflow of the cyclone and concentration of undersize materials of the dewatering screen; the inclined plate thickener is used for concentrating the tailings subjected to fine magnetic separation, the overflow of the inclined plate thickener enters a workshop for circulation, the underflow of the inclined plate thickener enters the cyclone, and the materials under the screen of the dewatering screen return to the cyclone.

Preferably, a mud-water separating agent adding device is arranged at the underflow of the cyclone.

Preferably, a flocculating agent adding device is arranged in front of the inlet of the disc type filter.

Preferably, a tailings conveying belt is arranged at the position downstream of the disc type filter.

Preferably, the tailing conveying belt is used for conveying the coarse magnetic separation dry-discharge tailings, the fine magnetic separation dry-discharge tailings and the filter cake to a dumping yard for stockpiling.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts a dry-type discharging system of 'cyclone, dewatering screen, thickener, mud-water separating agent and disc filter', which can satisfy the requirement of full-grade dry-type discharging of magnetite tailings in the area on the premise of not influencing the machine-made sand for coarse-particle tailing production and construction in the existing system, and the scheme has the advantages of low equipment investment, low running cost and simple operation, and is easy to realize intelligent remote operation; the utility model provides a tailing full grain level dry-type discharging system has not only reduced the power consumption that the water in the tailing was carried, and the annual electricity saving charges can reach several million yuan, and the benefit of economizing on electricity is especially obvious, has solved wet-type tailing simultaneously and has stockpiled the place problem to can guarantee the continuity of mine production.

Drawings

Fig. 1 is a schematic diagram of the system structure of the present invention.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the utility model provides a dry-type mine tailing disposal system to realize dry-type stockpiling, the main device of the system comprises a sloping plate thickener, a cyclone, a dewatering screen, a concentration tank and a disc filter; concentrating coarse magnetic separation tailings through a cyclone, enabling underflow to enter a dewatering screen, enabling materials on the screen of the dewatering screen to enter a tailing conveying belt, and enabling materials under the screen of the cyclone overflow and the dewatering screen to enter a concentration tank; after the tailings subjected to the fine magnetic separation are concentrated by an inclined plate thickener, inclined plate overflow enters a workshop for recycling, inclined plate underflow enters a cyclone, cyclone underflow enters a dewatering screen, materials on the screen of the dewatering screen enter a tailing conveying belt, materials under the screen of the dewatering screen return to the cyclone to form a closed circuit, and the cyclone overflow enters a concentration tank.

The tailings are concentrated by a concentration tank, overflow water enters a workshop for recycling, underflow in the concentration tank is pumped to a cyclone for secondary concentration, overflow of the cyclone returns to the concentration tank, a mud-water separating agent is added at the underflow of the cyclone, active positive charges and active negative charges are combined through organic membrane treatment in an inverse proportion by utilizing the principle that like charges repel and opposite charges attract, the active positive charges and the active negative charges are added into ore pulp for targeted charge adsorption, hydrophilic groups are artificially destroyed to increase the hydrophobicity of solid matters, semi-dissolved solid matters are rapidly separated from liquid water, and the ore pulp is changed into a suspension state from semi-dissolution. Adding a flocculating agent into the suspended ore pulp, then feeding the suspended ore pulp into a disc filter, attaching micro-fine particle materials to the surface of large-particle minerals in a stirring tank of the filter, returning filtrate to a workshop for use after the filter is dehydrated by the disc filter, and feeding filter cakes into a tailing conveying belt.

And (3) carrying out coarse magnetic separation on the dry-discharge tailings, carrying out fine magnetic separation on the dry-discharge tailings and a filter cake of the filter to a dumping field for stockpiling through a tailing conveying belt. The medicament comprises a mud-water separating agent and a flocculating agent, and the mud-water separating agent and the flocculating agent can be selected from the existing medicaments.

The utility model provides a mine tailing is arranged processing system futilely combines conventional three-section concentration, two sections dry discharge system of adopting, can effectively solve the problem that the coarse grain content in the conventional mine tailing too much leads to the heavy groove that appears in the conventional filtration.

The utility model provides a mine tailing dry-type discharging processing system uses mud-water separation agent and flocculating agent, can separate the separation of water in fine mud and the ore pulp to depend on a small amount of coarse fraction tailing granule under the effect of flocculating agent, effectively solved the problem of filter cloth jam under the conventional filtration mode.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the embodiments described above are not described, but should be considered as within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a mine tailing dry discharging processing system which characterized in that: comprises a sloping plate thickener, a cyclone, a dewatering screen, a concentration tank and a disc filter; the cyclone is used for concentrating coarse magnetic separation tailings, the dewatering screen is used for dewatering underflow after concentration by the cyclone, oversize materials of the dewatering screen enter a tailing conveying belt, and the concentration tank is used for overflow of the cyclone and concentration of undersize materials of the dewatering screen; the inclined plate thickener is used for concentrating the tailings subjected to fine magnetic separation, the overflow of the inclined plate thickener enters a workshop for circulation, the underflow of the inclined plate thickener enters the cyclone, and the materials under the screen of the dewatering screen return to the cyclone.

2. The dry discharge treatment system for mine tailings as claimed in claim 1, wherein: and a mud-water separating agent adding device is arranged at the underflow of the cyclone.

3. The dry discharge treatment system for mine tailings as claimed in claim 1, wherein: and a flocculating agent adding device is arranged in front of the inlet of the disc type filter.

4. The dry discharge treatment system for mine tailings as claimed in claim 1, wherein: a tailing conveying belt is arranged at the downstream of the disc type filter.

5. The dry discharge treatment system for mine tailings as claimed in claim 1, wherein: the tailing conveying belt is used for conveying the coarse magnetic separation dry-discharge tailings, the fine magnetic separation dry-discharge tailings and the filter cake to a dumping field for stockpiling.