CN211158874U

CN211158874U - High-efficient fine fraction material dehydration dry-type discharging system

Info

Publication number: CN211158874U
Application number: CN201922044000.2U
Authority: CN
Inventors: 苏婷; 苏惠民
Original assignee: Yantai University
Current assignee: Yantai University
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-04
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a high-efficient fine-grained material dehydration is system of arranging futilely, including first sediment stuff pump, swirler, dewatering screen, thickener, second sediment stuff pump, centrifuge, pressure filter, first sediment stuff pump will contain solid particle's slurry pressure to swirler, the swirler is well fine-grained mixed material and coarse fraction material to the slurry that contains solid particle in grades, coarse fraction material certainly swirler sand setting mouth discharges to dewatering screen dehydration output coarse-grained material, well fine-grained mixed material warp swirler overflow to thickener, wherein, the underflow well fine-grained material of thickener is pressed to pressure filter dehydration output well fine-grained material through second sediment stuff pump, the fine-grained material of thickener overflow is pressed to centrifuge dehydration output fine-grained material through third sediment stuff pump. The utility model discloses can give the fine material that is difficult for subsiding, filterable and realize effectual solid-liquid separation to horizontal centrifuge, prevent dust pollution, reduce equipment investment and system area, can alleviate workman intensity of labour.

Description

High-efficient fine fraction material dehydration dry-type discharging system

Technical Field

The utility model relates to a high-efficient particulate material dehydration dry-type discharging system, the specially adapted chemical industry, coal, mine product and solid waste carry out dehydration treatment.

Background

With the increasing importance of the country on the safety and environmental protection of the mine industry, the effective treatment of mineral separation solid waste (namely tailings) is an important subject to be solved urgently in China. In recent years, related departments advocate a dry tailing discharge treatment method vigorously and obtain great effects aiming at potential safety hazards of tailing ponds. At present, a known material dehydration system needs to be provided with thickeners and filter presses of different models according to production scale, during production, fine materials can affect the dehydration effect of the thickeners and the thickeners, so that the production discharge does not reach the standard or the subsequent treatment cost is increased.

Disclosure of Invention

The utility model aims to provide a material dehydration dry-type discharging system to overcome the defects of the prior art.

In order to realize the purpose of the invention, the technical scheme is as follows:

a fine grading material dehydration dry-discharge system, which comprises a first slurry pump 10, a swirler 2, a dehydration screen 3, a thickener 4, a second slurry pump 11, a centrifuge 6 and a filter press 7,

the first slurry pump 10 forces the slurry containing solid particles to the cyclone 2,

the cyclone 2 classifies the slurry containing solid particles into medium-grade materials and coarse-grade materials, the coarse-grade materials are discharged from a sand setting port of the cyclone 2 to a dewatering screen 3 for dewatering to produce coarse-grade materials,

the medium-size fraction material overflows to a thickener 4 through the cyclone 2,

and the medium-size material at the bottom flow of the thickener 4 is pressed to the filter press 7 through a second slurry pump 11 to be dehydrated to produce medium-size material, and the fine-size material at the overflow of the thickener 4 is pressed to the centrifuge 6 through a third slurry pump 12 to be dehydrated to produce fine-size material.

Preferably, the material dewatering dry-discharge system is provided with a flocculating agent adding device 5 for adding flocculating agent into the fine-grained material overflowing from the thickener 4.

Preferably, the centrifuge 6 is replaced by a deep cone thickener, but at this time, a flocculating agent must be added to the deep cone thickener, and the underflow of the deep cone thickener produces a pasty fine-grained material.

Preferably, the material dewatering and dry discharging system excludes a medium particle material branch system produced by the thickener 4, the second slurry pump 11 and the filter press 7, and replaces the horizontal centrifuge 6 with a deep cone thickener, at this time, a flocculating agent must be added into the thickener 4, and the underflow of the thickener 4 produces a paste-like fine particle material.

Preferably, the fine particles screened out by the screen of the dewatering screen 3 return to the cyclone 2.

The utility model is used for the realization process of high-efficient fine material dehydration as follows:

the slurry containing solid particles is pressed to the cyclone 2 by the first slurry pump 1, the materials are classified according to granularity (and density) under the action of centrifugal force, the classified and concentrated coarse-grained materials are discharged from a sand setting port at the lower part of the cyclone 2, and then the classified and concentrated coarse-grained materials are supplied to the dewatering screen 3 for further dewatering and coarse-grained materials are produced.

The medium particle materials overflow to the thickener 4 through the cyclone 2, the dewatered bottom of the thickener 4 flows through a second slurry pump 11 and is pressed to a filter press 7 for further dewatering and medium particle materials are produced.

The third slurry pump 12 feeds the fine material overflowing the thickener 4 to the horizontal centrifuge 6 for further dewatering and producing the fine material.

In the above process, the whole process of dry discharging of the material is realized, and a proper amount of flocculant is added in the overflow of the thickener 4 through the flocculant adding device 5 to obtain a better effect.

Advantageous effects

The utility model discloses can give the fine material that is difficult for subsiding, filterable to horizontal centrifuge 6 and realize effectual solid-liquid separation, prevent dust pollution, can improve the work efficiency of equipment such as thickener 4, pressure filter 7 moreover by a wide margin, reducible equipment investment and system area can alleviate workman intensity of labour.

The utility model discloses the material is arranged the system futilely and can reduce the working area of thickener 4 and pressure filter 7 by a wide margin, reduces the project investment, changes the big defect of traditional material drainage system area, and reduction in production cost and operative employee's intensity of labour can obviously improve the dehydration effect of fine grain material.

In addition, the horizontal centrifuge has the advantages of stable performance, simple structure, convenient maintenance, small occupied area, automatic and continuous work and large processing capacity.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is the utility model discloses a meticulous hierarchical material dehydration dry row system schematic diagram.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the beneficial results of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific details must be set forth in order to achieve the developer's specific goals.

In order to make the objects and features of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is noted that the drawings are in greatly simplified form and that non-precision ratios are used for convenience and clarity in aiding in the description of the embodiments of the invention.

Embodiment mode 1:

as shown in fig. 1, an efficient fine material dewatering and dry discharging system comprises a first slurry pump 10, a cyclone 2, a dewatering screen 3, a thickener 4, a second slurry pump 11, a centrifuge 6 and a filter press 7, wherein the cyclone 2 and the dewatering screen 3 are associated with the first slurry pump 10, the cyclone 2 and the thickener 4 are associated with the first slurry pump 10, and the thickener 4 is associated with the filter press 7 and the centrifuge 6 through the second slurry pump 11, and the specific association relationship is as follows:

the cyclone 2 classifies the slurry containing solid particles into a medium-fine particle mixed material and a coarse particle grade material, the coarse particle grade material is discharged from a sand setting port of the cyclone 2 to a dewatering screen 3 for dewatering to produce a coarse particle grade material,

the medium and fine fraction mixed material overflows to a thickener 4 through the cyclone 2,

During the use, the slurry that contains solid particle is pressed to swirler 2 by first sediment stuff pump 10, and the material realizes grading according to granularity (and density) under the effect of centrifugal force, and the coarse fraction material through grading and concentration is got rid of from swirler 2 lower part sand setting mouth, gives then to dewatering screen 3 further dehydration and output coarse grain material. And feeding the fine grain mixed material in the overflow of the cyclone 2 to a thickener 4, and pressing the bottom flow dehydrated by the thickener 4 to a filter press 7 through a second slurry pump 11 for further dehydration to produce the medium grain material. The third slurry pump 12 feeds the fine material overflowing from the thickener 4 to the horizontal centrifuge 6 for further dehydration and produces the fine material, thereby realizing the whole process of dry discharge of the material.

It is usual to add an appropriate amount of flocculant to the fine-grained matter overflowing the thickener 4 by means of a flocculant adding device 5, which is expected to achieve a better effect of obtaining a pasty fine-grained matter, and the flocculant adding device 5 in this example may be a mixer provided with a flocculant spout.

In addition, the medium and fine particle materials screened out by the screen of the dewatering screen 3 can be returned to the cyclone 2 for further classification.

Embodiment mode 2: the difference from the embodiment 1 is that a deep cone thickener is used to replace the horizontal centrifuge 6, and at this time, a flocculating agent must be added to the fine material overflowing from the thickener 4, and the material produced by the underflow of the horizontal centrifuge 6 is a paste-like fine material.

Embodiment mode 3: the difference from the embodiment 1 is that a branch system of medium-sized materials output by the thickener 4, the second slurry pump 11 and the filter press 7 is removed, and a deep cone thickener is used for replacing the horizontal centrifuge 6, at this time, a flocculating agent must be added into fine-sized materials overflowing from the thickener 4, and the materials output by the underflow of the horizontal centrifuge 6 are pasty fine-sized materials.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a high-efficient fine fraction material dehydration is system of arranging futilely, characterized by includes first sediment stuff pump (10), swirler (2), dewatering screen (3), thickener (4), second sediment stuff pump (11), centrifuge (6), pressure filter (7) to the incidence relation of each component part is as follows:

the first slurry pump (10) presses the slurry containing solid particles to the cyclone (2),

the cyclone (2) grades the slurry containing solid particles into a medium-fine fraction mixed material and a coarse fraction material, the coarse fraction material is discharged from a sand setting port of the cyclone (2) to a dewatering screen (3) for dewatering to produce a coarse fraction material,

the medium and fine fraction mixed material overflows to a thickener (4) through the cyclone (2),

and the medium-size material at the underflow of the thickener (4) is pressed to a filter press (7) through a second slurry pump (11) to be dehydrated to produce medium-size material, and the fine-size material at the overflow of the thickener (4) is pressed to a centrifuge (6) through a third slurry pump (12) to be dehydrated to produce fine-size material.

2. The system for dewatering and dry discharging of fine grained material according to claim 1, characterized in that the system for dewatering and dry discharging of material is provided with a flocculating agent adding device (5) for adding flocculating agent to the fine grained material overflowing the thickener (4).

3. The system for the high-efficiency dry discharge of the fine fraction materials in the fine fraction material dehydration according to the claim 2, characterized in that the centrifuge (6) is replaced by a deep cone thickener.

4. The high-efficiency fine fraction material dewatering and dry discharging system as claimed in claim 2, characterized in that the material dewatering and dry discharging system is a branch system for discharging medium-sized materials output by the thickener (4), the second slurry pump (11) and the filter press (7), and a deep cone thickener is used to replace a horizontal centrifuge (6).

5. The high-efficiency fine-grained material dewatering and dry discharging system as claimed in claim 3, characterized in that the material dewatering and dry discharging system is a branch system for discharging medium-grained materials output by the thickener (4), the second slurry pump (11) and the filter press (7).