CN109876922B

CN109876922B - Grading device and grading method for realizing overflow desliming of interference bed separator

Info

Publication number: CN109876922B
Application number: CN201910306796.6A
Authority: CN
Inventors: 刘明; 孔忠伟; 徐学卫; 姬跃平; 孙斌; 赵强强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2023-12-05
Anticipated expiration: 2039-04-17
Also published as: CN109876922A

Abstract

The invention provides a grading device and a grading method for realizing overflow desliming of an interference bed separator, comprising a grading boundary and a support, wherein the grading boundary is used for cutting and separating an overflow layer, the support is used for fixing the grading boundary, the grading boundary is positioned above the overflow boundary of the overflow layer, a gap is formed between the grading boundary and the overflow boundary of the overflow layer, and the grading boundary is cut into the overflow layer. The overflow fluid is divided into two parts by the grading boundary, the particle size is smaller and is split from the upper part of the grading boundary, and the particle size is thicker and is split from the vertical gap. The grading device for realizing overflow desliming of the interference bed separator has the advantages of scientific design, simple structure, and no occupation of excessive space, and can effectively combine with the interference bed separator to realize fine mud diversion.

Description

Grading device and grading method for realizing overflow desliming of interference bed separator

Technical Field

The invention relates to concentrate classifying equipment, in particular to a classifying device for realizing overflow desliming of an interference bed separator.

Background

The interference bed separator is suitable for separating 3-0.25mm of materials, and after the 3-0mm of materials are separated by the interference bed separator, the concentrate overflow product contains a large amount of fine mud of-0.25 mm, and the current practice is to use an arc screen to carry out desliming treatment on the concentrate overflow product mixed with a large amount of fine mud of-0.25 mm, so that the quality of concentrate can be ensured to be qualified, but the process steps are complicated, and the grading effect is poor.

The applicant observes for a long time that the fine mud with the diameter of-0.25 mm is always positioned at the top layer in the overflow process of the interference bed separator, and the coarse material with the diameter is positioned below the fine mud, so that the separation characteristic of the interference bed separator is utilized to directly separate the fine mud, the step of re-desliming treatment by a follow-up arc sieve is omitted, the defects of the existing desliming equipment are overcome, the production process is optimized, the working flow is simplified, and the technical problem which is urgently needed to be solved by the person in the field is solved.

In order to solve the above problems, an ideal technical solution is always sought.

Disclosure of Invention

The invention aims at overcoming the defects of the prior art, and provides the grading device which has a simple structure, can effectively combine with the interference bed separator to realize fine mud diversion and does not occupy excessive space to realize overflow desliming of the interference bed separator.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the grading device for realizing overflow desliming of the disturbing bed separator comprises a grading boundary and a support, wherein the grading boundary is used for cutting and separating an overflow layer, and the support is used for fixing the grading boundary.

Based on the above, the grading boundary is located above the overflow boundary of the overflow layer, forms a vertical gap with the overflow boundary of the overflow layer, and cuts into the overflow layer.

Based on the above, the grading boundary is positioned at the same height outside the overflow boundary of the overflow layer, and forms a horizontal gap with the overflow boundary of the overflow layer.

Based on the above, the contour shape of the grading boundary is kept consistent with the contour shape of the overflow boundary of the overflow layer.

The step boundary may be a flat sheet or a sheet inclined outward and downward.

Based on the above, the grading boundary is a horizontal plate or a vertical plate arranged vertically.

Based on the above, the grading boundary and the bracket are formed by surrounding a plurality of sub-grading boundaries and sub-brackets.

Based on the above, the grading boundary is externally connected with a guide plate.

Basically, the sub-support is two risers, the draw-in groove is seted up to the lower extreme of two risers, the hierarchical boundary of son is the horizontal plate, two risers are connected respectively at horizontal plate both ends, the inner profile of horizontal plate keeps unanimous with overflow boundary's profile shape.

The classification method for realizing overflow desliming of the interference bed separator is characterized in that a circle of classification boundary is arranged in an overflow area at the upper end of a barrel body of the interference bed separator, and the boundary at the upper end of the barrel body naturally forms an overflow boundary; the grading boundary is equal to the overflow boundary in height and keeps a horizontal gap, or the grading boundary is vertically consistent with the overflow boundary and keeps a vertical gap; with the operation of the disturbance bed separator, the overflow fluid is split into two parts by the classification boundary, the particle size is divided by the upper part of the classification boundary, and the particle size is divided by the horizontal gap or the vertical gap.

Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the overflow layer is cut and separated by arranging the grading boundary in the overflow area, and the overflow layer is divided from the upper part of the grading boundary with small particle size, so that the overflow desliming process is realized, the addition of the subsequent independent desliming process is avoided, the process steps are simplified, the design structure is simple, the use is convenient, and the excessive space is not occupied.

Drawings

Fig. 1 is a schematic diagram of the structure of a classifying apparatus for realizing overflow desliming of an interference bed classifier in embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a classifying device for realizing overflow desliming of an interference bed classifier in embodiment 2 of the present invention.

Fig. 3 and 4 are schematic structural views of a classifying device for realizing overflow desliming of an interference bed classifier in embodiment 4 of the present invention.

Fig. 5 is a schematic view showing the structure of a classifying apparatus for realizing overflow desliming of an interference bed classifier in example 5 of the present invention.

In the figure: 1. a horizontal plate; 2. a deflector; 3. a support; 4. a clamping groove; 5. arc edges; 6. mounting a long hole; 7. adjusting a bolt; 8. a grading boundary; 9. an overflow boundary of the overflow layer; 10. disturbing the bed separator.

Detailed Description

The technical scheme of the invention is further described in detail through the following specific embodiments.

Example 1

As shown in fig. 1, a grading device for realizing overflow desliming of an interference bed separator comprises a grading boundary 8 and a support, wherein the grading boundary 8 is used for cutting and separating an overflow layer, the support is used for fixing the grading boundary 8, the grading boundary 8 is positioned above an overflow layer overflow boundary 9 and forms a vertical gap with the overflow layer overflow boundary 9, and the grading boundary 8 is cut into the overflow layer.

In particular applications, the overflow boundary 9 of the overflow layer is naturally formed at the upper edge of the tub of the disturbing bed separator (TBS) 10, because the overflow fluid flows upward under the pushing of the upward disturbing fluid, the tub wall of the tub forms a guiding structure of the overflow fluid, and after reaching the upper boundary of the tub wall, the overflow fluid loses support and starts to overflow outward, and thus the definition of the overflow boundary 9 of the overflow layer follows.

In the actual process, the overflow fluid is pushed by the disturbance fluid, the overflow boundary of the overflow layer directly overflows outwards for a small amount, most of the fluid moves upwards for a certain distance just like the boiling water surface, and based on the principle, the classification boundary 8 is arranged at a certain position above the overflow boundary, and the overflow part beyond the classification boundary 8 overflows outwards from the upper part of the classification boundary and the overflow part not beyond the classification boundary overflows outwards from the vertical gap according to the particle size required to be classified.

In this embodiment, the thickness of the classification boundary 8 must be thin enough to allow the overflow fluid to be inserted, since it is necessary to precisely separate the fluid, and the thin plate should be a horizontal thin plate or a thin plate with low outside and high inside in order to ensure the fluid can flow out.

In order to better ensure the grading effect, and not to influence the normal operation of the bed separator, the grading boundary does not exceed the inner edge of the inner wall of the cylinder, and the effect is optimal when the grading boundary and the inner edge are vertically consistent.

The support is mainly used for fixing the grading boundary, so that the specific form of the support is not limited, and the support can be used for fixing the grading boundary on the disturbing bed separator, and can also be other types of supports.

Example 2

As shown in fig. 2, this embodiment differs from embodiment 1 in that: the grading boundary 8 is positioned at the same height outside the overflow boundary 9 of the overflow layer, and forms a horizontal gap with the overflow boundary 9 of the overflow layer.

The principle of the scheme is that after overflow fluid moves upwards for a certain distance from an overflow boundary of an overflow layer under the pushing of disturbance fluid, the overflow fluid overflows to the periphery due to the fact that the periphery loses support, but in the process, the overflow radius of the overflow fluid located on the upper layer is larger, the overflow radius of the overflow fluid located on the lower layer is smaller relatively, the grading boundary 8 is designed on the outer side of the equal-height position of the overflow boundary of the overflow layer by utilizing the principle, a horizontal gap is reserved, the overflow fluid with small particle size overflows from the grading boundary, the overflow fluid with large particle size is shunted from the upper side, and the grading is realized.

The size of the gap can control the size of the graded particle size.

In this embodiment, since the classification boundary 8 does not need to be inserted with overflow fluid for classification, the overflow fluid moves from top to bottom at the position where the overflow fluid is split, and a horizontal plate or a sloping plate without thickness requirement can be adopted to intercept the overflow fluid, only the boundary position of the plate needs to be controlled.

Of course, it is also possible to use vertical thin plates, which are inserted into the overflow fluid from bottom to top, to achieve classification, in which case the form of the structure matching the existing disturbing bed classifier may be a circular cylindrical structure.

Example 3

In order to more conveniently separate the classified small-particle-size particles, a guide plate can be connected outside the classification boundary.

Example 4

Because the size of the interference bed separator is large, a complete grading boundary is not easy to manufacture, the grading boundary and the support are formed by surrounding a plurality of sub-grading boundaries and sub-supports, and after surrounding installation, the complete grading boundary is formed, so that grading is realized.

Specifically, as shown in fig. 3 and fig. 4, the sub-support is two vertical plates 3, the lower ends of the two vertical plates 3 are provided with clamping grooves 4, the sub-grading boundary is a horizontal plate 1, two ends of the horizontal plate 1 are respectively connected with the two vertical plates 3, and the contour of the inner end of the horizontal plate 1 is kept consistent with the contour shape of an overflow boundary 9 and is an arc edge 5.

The clamping groove 4 is used for being installed on the upper edge of the barrel wall of the interference bed separator 10, and the clamping groove 4 has two types, namely, the inner edge of the horizontal plate can be located above the upper edge of the barrel body (as shown in fig. 3) or outside the equal-height position (as shown in fig. 4), so that two grading types in the embodiment 1 and the embodiment 2 are realized.

The clamping groove type structure is convenient to install and disassemble and is easier to operate.

Example 5

This embodiment differs from embodiment 4 in that: in order to adapt to different grading requirements, the horizontal plate 1 is arranged on the two vertical plates 3 through a vertical adjusting structure, specifically, the two vertical plates 3 can be provided with mounting holes in rows, and the height of the horizontal plate is adjusted by arranging the mounting holes at different heights; alternatively, as shown in fig. 5, a vertical installation slot 6 is designed on the vertical plate 3, and the installation position of the horizontal plate 1 is adjusted by an adjusting bolt 7, so that the height adjustment is realized.

With this structure, the size of the graded grain size can be realized by adjusting the height of the horizontal plate 1 from the cylinder.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims

1. The utility model provides a realize disturbing grading plant of bed sorter overflow desliming which characterized in that: the device comprises a grading boundary and a bracket, wherein a circle of grading boundary is arranged in an overflow area at the upper end of a barrel body of an interference bed separator, and the overflow boundary is naturally formed at the upper end boundary of the barrel body; the grading boundary is used for cutting and separating the overflow layer, the support is used for fixing the grading boundary, the grading boundary is located above the overflow boundary of the overflow layer, a vertical gap is formed between the grading boundary and the overflow boundary of the overflow layer, and the grading boundary cuts into the overflow layer; or the grading boundary is positioned at the same height outside the overflow boundary of the overflow layer, and forms a horizontal gap with the overflow boundary of the overflow layer;

with the operation of the disturbance bed separator, the overflow fluid is split into two parts by the classification boundary, the particle size is divided by the upper part of the classification boundary, and the particle size is divided by the horizontal gap or the vertical gap.

2. The classification apparatus for realizing overflow desliming of an interfering bed classifier according to claim 1, wherein: the contour shape of the grading boundary is consistent with the contour shape of the overflow boundary of the overflow layer.

3. The classification apparatus for realizing overflow desliming of an interfering bed classifier according to claim 1, wherein: the grading boundary is a plane sheet or a sheet inclined towards the outside and the lower side.

4. The classification apparatus for realizing overflow desliming of an interfering bed classifier according to claim 1, wherein: the grading boundary is a horizontal plate or a vertical plate arranged vertically.

5. The classification apparatus for effecting overflow desliming of an interfering bed classifier as claimed in claim 3 or 4, wherein: the grading boundary and the support are formed by surrounding a plurality of sub-grading boundaries and sub-supports.

6. The classification apparatus for effecting overflow desliming of an interfering bed classifier of claim 5, wherein: the grading boundary is externally connected with a guide plate.

7. The classification apparatus for effecting overflow desliming of an interfering bed classifier of claim 6, wherein: the sub-support is two vertical plates, clamping grooves are formed in the lower ends of the two vertical plates, the sub-grading boundary is a horizontal plate, two ends of the horizontal plate are respectively connected with the two vertical plates, and the outline of the inner end of the horizontal plate is consistent with the outline of the overflow boundary.