CN110626814A

CN110626814A - Tailing processing system

Info

Publication number: CN110626814A
Application number: CN201910790268.2A
Authority: CN
Inventors: 张国峰
Original assignee: Individual
Current assignee: CHINA NAT GOLD GROUP JIAPIGOU MINING Co.,Ltd.
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2019-12-31
Anticipated expiration: 2039-08-26
Also published as: CN110626814B

Abstract

The application discloses a tailing treatment system, which comprises a raking device, a first material separator, a first conveying device, a crusher, a second conveying device, a material selecting device, a second material separator and a third conveying device which are sequentially arranged, wherein tailing materials in a tailing pond are treated and conveyed, and finally materials of different grades and different types are output at the material selecting device and are respectively conveyed to a transport vehicle for further treatment and application of different types; the system is configured systematically from the tailing pond to the whole process of feeding, crushing, sorting and conveying, so that the materials to be treated can be utilized from the tailing pond to output various types of materials, and the vacancy that a tailing primary treatment system is lacked at present is filled.

Description

Tailing processing system

Technical Field

The application relates to the field of tailing treatment, in particular to a tailing treatment system.

Background

The waste residue and slag discharged by mine enterprises after mineral separation are mostly discharged in the form of slurry, the content of useful target components contained in the waste residue and slag is the lowest, the waste residue and slag are not suitable for further separation under the current technical conditions, a tailing pond is formed after long-term accumulation, the tailing pond not only occupies a large amount of available land, but also the tailing components and residual mineral separation agents seriously damage the ecological environment, and acidic water generated by sulfides during precipitation can leach heavy metals to harm the ecological environment around the whole tailing pond.

The inventor finds that although various approaches exist for comprehensive utilization of tailings at present, such as recleaning of materials with relatively high content of partial useful components, filling of underground mined-out goafs, raw materials of building materials after crushing, land reclamation by sea filling and the like, all the utilization modes depend on primary treatment and separation of tailings, and at present, a special device or system is rarely used for primary treatment before tailings are utilized, so that conversion and utilization of tailings are slow, and the full utilization degree of tailings is limited.

Disclosure of Invention

The purpose of this application is to the defect that prior art exists, provides a tailing processing system, through the setting of systematization, with whole material preliminary treatment process, cooperation material loading, breakage, letter sorting flow control the sorting of different diameters and obtain different materials, carry respectively the utilization to different materials to the material of the required different grade type of each subsequent handling process of output.

In order to realize the purpose, the following technical scheme is adopted:

a tailings treatment system comprising:

the material raking device is used for horizontally grabbing materials through rotation and conveying the materials to the first material distributor;

the first material distributor is used for receiving the materials and horizontally throwing the materials out to the first conveying device through rotation;

the crusher is used for receiving the materials conveyed by the first conveying device, crushing the materials and outputting the crushed materials to the second conveying device;

the first conveying device and the second conveying device are identical in structure and comprise driving mechanisms, a rack, chain wheels and chains, wherein two groups of chain wheels are arranged at two ends of the rack respectively, the chains are matched with the two groups of chain wheels to form an inclined conveying mechanism, and the driving mechanisms are connected with the chain wheels and drive the chains to rotate through the chain wheels;

a plurality of first hoppers are uniformly distributed on a chain of the first conveying device, a plurality of second hoppers are uniformly distributed on a chain of the second conveying device, and the first hoppers and the second hoppers are both used for receiving materials.

Further, the second hopper includes an open-ended cavity, and the opening part is equipped with the filter screen, the filter screen covers part opening, the material of breaker output enters into the cavity after the filter screen filters in, and the part that the opening does not cover the filter screen is used for discharging the material in the second hopper.

Further, when any second hopper is positioned at a station for receiving the materials output by the crusher, the filter screen is in an inclined state, and the lowest end of the filter screen is flush with the edge of the opening.

Furthermore, a collecting tank is arranged below the second frame and used for receiving materials which do not enter the second hopper and conveying the materials to the first conveying device.

Further, the top of second frame is equipped with vibrating device, the second hopper is through vibrating device at the in-process that rises gradually in proper order, vibrating device is used for vibrating through the second hopper for the unable material that gets into in the second hopper cavity in messenger's filter screen top drops.

Furthermore, when the first hopper moves to the highest position of the first conveying device, the material in the first hopper is poured into the crusher through the feeding hole in the top of the crusher.

Furthermore, a material selecting device is arranged behind the second conveying device, receives the materials conveyed by the second conveying device and screens the materials, the materials are classified according to the diameters of the materials during screening, and the classified multi-stage materials are conveyed through a second material distributing machine respectively.

Furthermore, a plurality of third conveying devices are arranged behind the second material distributing machine and are used for correspondingly receiving and conveying materials of different stages respectively;

or a third conveying device is arranged behind the second material distributing machine and is used for receiving and conveying materials of different stages in a time-sharing mode.

Further, the material raking device comprises a support and a belt which is installed on the support and horizontally rotates, buckets are uniformly distributed on the belt, and the buckets are driven by the belt to grab materials and horizontally convey the materials to the first material distributor; the belt can be changed in position on the stand to adjust its height relative to the ground.

Compared with the prior art, the application has the advantages and positive effects that:

(1) the system is configured from the tailing pond to the whole process of feeding, crushing, sorting and conveying, so that the materials to be treated can be output from the tailing pond to various types of available materials, and the vacancy that a tailing primary treatment system is lacked at present is filled;

(2) the feeding and conveying of the tailing materials are realized through the hoppers, compared with the conveying of the materials by adopting a conveying belt, the chain wheel and the chain are matched with the hoppers to realize accurate butt joint with the material distributor, the problem that the materials thrown out by the material distributor cannot be completely supported by the conveying belt is avoided, the materials among different hoppers are not mutually interfered, the problem that the materials thrown out to the conveying belt damage the continuous stacking state of the original conveying belt materials is solved, and compared with the conveying belt chain wheel and the chain, the material conveying device has larger bearing capacity and meets the requirement of large capacity in the tailing treatment process;

(3) the crushed materials are primarily filtered through the filter screen, the filter screen is arranged at the opening of the second hopper, so that the materials which are not crushed thoroughly can be screened by utilizing the impact force in the material flowing process, the intercepted materials are separated from the filter screen under the action of gravity and a vibration mechanism and fall into a collecting tank, and then are secondarily crushed, so that the problem that the opening of the second hopper is blocked by the large-volume materials without being filtered is avoided, and the workload of subsequent material distribution is reduced;

(4) when the second hopper is in a bearing state, the filter screen is in an inclined state, so that the gravity of the materials is prevented from being completely and directly applied to the filter screen, the filter screen is protected, and meanwhile, the materials which cannot pass through the filter screen conveniently roll down along the filter screen and enter the collecting tank; the materials are screened along the oblique direction, so that the effective utilization area of the screen can be increased, and the technical effect of improving the filtering efficiency is achieved;

(5) the adoption part sets up filter screen, the open opening design of part, and the material passes through the filter screen and gets into the second hopper to discharge the material after the screening through the part that does not cover the filter screen, compare in filtering and empty the mode of going on in turn, simplified the structure, guaranteed the adaptability of device under adverse circumstances.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of a ring according to embodiment 1 of the present application.

Wherein: 1: raking device, 2: first depiler, 3: first conveying device, 4: a crusher, 5: second conveying device, 6: selecting device, 7: second depiler, 8: third conveying device, 9: a transporter, 10; and (4) a tailing pond.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

As introduced in the background art, the utilization of the tailings in the prior art depends on primary treatment and separation of the tailings, and at present, a special device or system is rarely used for the primary treatment before the utilization of the tailings, so that the transformation and the utilization of the tailings are slow, the full utilization degree of the tailings is limited, and the application provides a tailings treatment system aiming at the technical problems.

Example 1

In an exemplary embodiment of the present application, a tailings treatment system is provided, as shown in fig. 1.

The tailing materials in the tailing pond 10 are processed and conveyed by a raking device 1, a first material separator 2, a first conveying device 3, a crusher 4, a second conveying device 5, a material selecting device 6, a second material separator 7 and a third conveying device 8 which are sequentially arranged, and finally materials of different grades and different types are output at the material selecting device and are respectively conveyed to a transport vehicle 9 for further processing and application of different types.

The material scraping device is a horizontal conveying device and comprises a support and a belt which is arranged on the support and horizontally rotates, and buckets are uniformly distributed on the belt and are driven by the belt to grab materials and horizontally convey the materials to the first material distributor;

the position of the belt on the support is changed so as to adjust the height of the belt relative to the ground, the tail end of the belt is higher than the top of the first separator, one end of the belt is inserted into the tailing pond, the accumulated tailings are scraped by the bucket, the tailings are driven by the bucket to move horizontally, and the tailings fall onto the first separator after reaching the other end of the belt;

whole rotation process and the process that drives the material and remove all are the operation in the horizontal plane, consequently, compare and bear the weight of material in other bearing and transporting modes, the mode of taking off the material in this embodiment can utilize inertia to reduce the gravity effect that the material device received the material of taking off to reduce its drive power.

The first material separator and the second material separator have the same structure, and the size of the first material separator and the size of the second material separator are properly changed according to the weight of the actually received materials and the suffered impact force; the main working element of the first material distributor and the second material distributor is a material distribution disc which is of a disc structure and provided with a baffle, the baffle divides materials poured on the material distribution disc from the upper part, limits the sliding of the materials in the circumferential direction of the turntable, and is thrown out under the action of centrifugal force at a certain position to realize the conveying of the materials;

whole in-process, depiler are open structure, especially to the condition that the volume is not of uniform size that the tailing material constitutes, can avoid the material card to die the condition of bin outlet and appear, certainly, in order to realize the accuracy of carrying, need dispose the fixed point of toppling over the falling point of material and throwing away, through the height of adjusting rotational speed and depiler dish realize that the correspondence is accepted and carry the material can.

To first conveyor and second conveyor, all adopt the mode that chain, sprocket cooperation hopper were carried, can improve whole conveying system's bearing capacity on the one hand, on the other hand, to the material that the volume form differs, other materials that the impact that can avoid the material striking to arouse are carried in the loading of isolated landing from the conveyer belt, and on the other hand again, can realize the accurate butt joint to disc depiler, impact force when avoiding disc powder machine to throw away disturbs other materials.

It should be noted that, for the second conveying device, a second hopper is matched, the second hopper comprises an open cavity, a filter screen is arranged at the open cavity, the filter screen covers a part of the open cavity, the material output by the crusher enters the cavity after being filtered by the filter screen, and the part of the open cavity, which does not cover the filter screen, is used for discharging the material in the second hopper; when any one second hopper is positioned at a station for receiving the materials output by the crusher, the filter screen is in an inclined state, and the lowest end of the filter screen is flush with the edge of the opening;

the adoption part sets up filter screen, the open opening design of part, and the material passes through the filter screen and gets into the second hopper to discharge the material after the screening through the part that does not cover the filter screen, compare in filtering and empty the mode of going on in turn, simplified the structure, guaranteed the adaptability of device under adverse circumstances.

Preferably, a collecting tank is arranged below the second frame and is used for receiving materials which do not enter the second hopper and conveying the materials to the first conveying device; the top of second frame is equipped with vibrating device, the second hopper is through vibrating device at the in-process that rises gradually in proper order, vibrating device is used for vibrating through the second hopper for make the unable material that gets into in the second hopper cavity in filter screen top drop.

For the oscillating device, a vibrating motor is matched with a plate, the vibrating motor contacts the side face of the hopper through the plate, the second hopper sequentially passes through the plate, and the plate contacts the second hopper, so that an oscillating effect is exerted, and large-volume materials remained above the filter screen are shaken off and fall into the collecting tank; the collecting tank is provided with a corresponding small conveying device, and after a certain amount of materials are collected, the materials are conveyed to the first hopper in a centralized mode and are thrown into the crusher again for crushing.

The crushed materials are primarily filtered through the filter screen, the filter screen is arranged at the opening of the second hopper, so that the materials which are not crushed thoroughly can be screened by utilizing the impact force in the material flowing process, the intercepted materials are separated from the filter screen under the action of gravity and a vibration mechanism and fall into a collecting tank, and then are secondarily crushed, so that the problem that the opening of the second hopper is blocked by the large-volume materials without being filtered is avoided, and the workload of subsequent material distribution is reduced;

when the second hopper is in a bearing state, the filter screen is in an inclined state, so that the gravity of the materials is prevented from being completely and directly applied to the filter screen, the filter screen is protected, and meanwhile, the materials which cannot pass through the filter screen conveniently roll down along the filter screen and enter the collecting tank; the material is screened along the slant, can improve the effective utilization area of screen cloth to reach the technological effect who improves filtration efficiency.

For the first conveying device, the second conveying device and the corresponding first hopper and second hopper respectively, when the hopper moves to the topmost end of the conveying device, the materials are poured out from the opening of the hopper and fall into the device corresponding to the next flow, for the first conveying device, the first hopper pours the materials into the crusher, and for the second conveying device, the second hopper pours the materials into the material distributing device.

To the breaker, concrete broken mode is not restricted, as long as can realize with the breakage of tailing material can, in this embodiment, can adopt the blade breaker, high-speed rotation through a plurality of blades is beaten, is cut the breakage to the material of pouring from the top, in the breakage, can be with in the tailing attached to, the thin soil that is mingled with separates from the grit, subsequent recycle of being convenient for.

The feed opening of breaker is at the top of breaker, and the bin outlet is in the lower part, and the whereabouts effect that can make full use of gravity is progressively broken the material.

The material distribution device mainly has the main function of realizing multi-stage screening of crushed materials, can adopt a multi-stage vibrating screen structure and is sequentially arranged from top to bottom according to the aperture of a screen from large to small, wherein the thin soil with smaller diameter is the thin soil separated from sand and stones, and the thin soil can be returned to a tailing pond after tailing treatment is finished to carry out field building; materials with other diameters can be matched with a magnetic material separator to screen partial materials with higher iron ore content, so as to obtain ferromagnetic materials capable of being further processed; and respectively selecting the materials according to the requirements.

For the third conveying device, a mode of arranging a plurality of third conveying devices to respectively correspondingly receive and convey materials of different stages can be adopted, or a mode of arranging one third conveying device to receive and convey materials of different stages in a time-sharing manner can be adopted, and whether selection is convenient to make according to arrangement of a sorting site.

The system realizes the systematic configuration of the whole process from the tailing pond to the feeding, crushing, sorting and conveying, realizes the output of various types of available materials from the tailing pond to the materials to be treated, and fills the gap of the existing tailing primary treatment system.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tailings treatment system, comprising:

the crusher is used for receiving the materials conveyed by the first conveying device, crushing the materials and outputting the crushed materials to the second conveying device; the first conveying device and the second conveying device are identical in structure and comprise driving mechanisms, a rack, chain wheels and chains, wherein two groups of chain wheels are arranged at two ends of the rack respectively, the chains are matched with the two groups of chain wheels to form an inclined conveying mechanism, and the driving mechanisms are connected with the chain wheels and drive the chains to rotate through the chain wheels;

2. The tailings treatment system of claim 1 wherein the second hopper comprises an open cavity with a screen disposed therein, the screen covering a portion of the open cavity, the material from the crusher being filtered by the screen and entering the cavity, the portion of the open cavity not covered by the screen being used to discharge the material from the second hopper.

3. The tailings treatment system of claim 2 wherein when any of the second hoppers is in the station for receiving the crusher output material, the screen is inclined and the lowermost end of the screen is flush with the edge of the opening.

4. The tailings treatment system of claim 3 wherein a collection trough is provided below the second stand for receiving material that does not enter the second hopper and conveying it to the first conveyor.

5. The tailings treatment system of claim 4 wherein a vibrating device is disposed above the second frame, the second hopper sequentially passes through the vibrating device in the process of gradually rising, and the vibrating device is configured to vibrate the materials passing through the second hopper so as to make the materials above the filter screen unable to enter the cavity of the second hopper fall.

6. The tailings treatment system of claim 1 wherein the first hopper moves to the highest point of the first conveyor and the material therein is dumped into the crusher through a loading port at the top of the crusher.

7. The tailings treatment system of claim 1, wherein a sorting device is further arranged behind the second conveyor, the sorting device receives the materials conveyed by the second conveyor and screens the materials, the materials are classified according to the diameters of the materials during screening, and the classified materials in multiple stages are conveyed by the second material separator respectively.

8. The tailings treatment system of claim 7 wherein a plurality of third conveying devices are arranged behind the second separator, and are respectively used for correspondingly receiving and conveying different stages of materials.

9. The tailings treatment system of claim 7 wherein a third conveyor is provided after the second separator to receive and convey different stages of materials in a time-sharing manner.

10. The tailings treatment system of claim 1, wherein the raking device comprises a bracket and a belt horizontally rotating on the bracket, and buckets are uniformly distributed on the belt and are driven by the belt to grab the material and horizontally convey the material to the first separator; the belt can be changed in position on the stand to adjust its height relative to the ground.