阅读说明：本技术 一种细粒级矿物在线调节分选装置 (Fine fraction mineral online adjusting and sorting device ) 是由 胡丙升 宋俊超 魏亮 贾金鑫 岳世松 张洪超 张岳 吕秀丽 杨子海 于 2020-04-21 设计创作，主要内容包括：一种细粒级矿物在线调节分选装置,属于细粒级矿物干法分选设备技术领域,用于对细粒级矿物进行在线调节分选。其技术方案是：梯形分选槽内安装有三层布风板,多个分选室分别与梯形分选槽的两侧壁相连接,多个分选室分别与梯形分选槽的布风板的上边缘相对,梯形分选槽侧壁与各个分选室的连接处有出料口和排料门,多个分选室的上部有轻产物收料口,下部有重产物收料口,梯形分选槽的下端连接高温热风风室,各个分选室的下端分别连接中低温热风风室,各个风室的下端连接支柱,支柱的下端连接支座。本发明结构科学合理,使用方便,可以使物料按粒度初次分选、按密度二次分选,能够避免细粒级矿物堆积、团聚,提高分选效率和选后物料的质量。(An online fine-grained mineral adjusting and sorting device belongs to the technical field of dry fine-grained mineral sorting equipment and is used for online adjusting and sorting fine-grained minerals. The technical scheme is as follows: three layers of air distribution plates are arranged in the trapezoidal separation groove, a plurality of separation chambers are respectively connected with two side walls of the trapezoidal separation groove, the separation chambers are respectively opposite to the upper edge of the air distribution plate of the trapezoidal separation groove, a discharge hole and a discharge gate are arranged at the joint of the side wall of the trapezoidal separation groove and each separation chamber, a light product receiving hole is arranged at the upper parts of the separation chambers, a heavy product receiving hole is arranged at the lower part of the separation chambers, the lower end of the trapezoidal separation groove is connected with a high-temperature hot air chamber, the lower end of each separation chamber is respectively connected with a medium-low temperature hot air chamber, the lower end of each air chamber is connected with a support. The invention has scientific and reasonable structure and convenient use, can primarily sort materials according to granularity and secondarily sort materials according to density, can avoid accumulation and agglomeration of fine-grained minerals, and improves sorting efficiency and the quality of the sorted materials.)

1. The utility model provides a fine fraction mineral online adjustment sorting unit which characterized in that: the device comprises a trapezoidal separation groove (2), an air distribution plate (11), separation chambers (3), a support (4), a support column (5), a high-temperature hot air chamber (13) and a medium-low temperature hot air chamber (14), wherein a feeding port (1) is formed in the upper end of the trapezoidal separation groove (2), the air distribution plate (11) is arranged in the inner cavity of the trapezoidal separation groove (2), the air distribution plate (11) is three layers, the three layers of the air distribution plate (11) are overlapped in the vertical direction, the peripheral edges of the three layers of the air distribution plate (11) are respectively connected with the inner wall of the trapezoidal separation groove (2), a plurality of separation chambers (3) are respectively connected with two side walls of the trapezoidal separation groove (2), the separation chambers (3) are respectively opposite to the upper edge of the air distribution plate (11) of the trapezoidal separation groove (2), a discharge port (12) is formed at the connection part of the side wall of the trapezoidal separation groove (2) and each separation chamber (3), and a discharge gate (10), the upper parts of the sorting chambers (3) are provided with light product receiving ports (8), the lower parts of the sorting chambers are provided with heavy product receiving ports (6), the lower end of the trapezoidal sorting groove (2) is connected with a high-temperature hot air chamber (13), the lower end of each sorting chamber (3) is respectively connected with a medium-low temperature hot air chamber (14), the lower ends of the high-temperature hot air chamber (13) and the medium-low temperature hot air chamber (14) are connected with a support (5), and the lower ends of the support (5) are connected with a support (4).

2. The fine fraction mineral online conditioning and sorting device of claim 1, wherein: every layer of air distribution plate (11) comprises two flat boards, and the one end of two flat boards is connected, and two flat boards incline downwards respectively in both sides, constitute triangle-shaped cross-sectional structure, and the aperture of three-layer air distribution plate (11) reduces by last to lower in proper order respectively, and the row of material door (10) of three-layer air distribution plate (11) top edge and trapezoidal sorting tank (2) lateral wall junction is the one-way door of outwards opening.

3. The fine fraction mineral online conditioning and sorting device of claim 1, wherein: sorting chambers (3) are totally 6, two sorting chambers (3) connected with one layer of air distribution plate (11) are respectively fixed at the tail parts of two outer sides of the trapezoidal sorting groove (2), two sorting chambers (3) connected with two layers of air distribution plates (11) are respectively fixed at the middle parts of two outer sides of the trapezoidal sorting groove (2), two sorting chambers (3) connected with three layers of air distribution plates (11) are respectively fixed at the front ends of two outer sides of the trapezoidal sorting groove (2), and six sorting chambers (3) are symmetrically arranged outside the trapezoidal sorting groove (2).

4. The fine fraction mineral online conditioning and sorting device of claim 3, wherein: every is selected separately near room (3) and trapezoidal separation groove (2) are connected and all is provided with light product material receiving opening (8), and negative pressure swirler (9) are installed on light product material receiving opening (8) upper portion, and the separation room bottom is provided with heavy product material receiving opening (6).

5. The fine fraction mineral online conditioning and sorting device of claim 4, wherein: six medium and low temperature hot air wind chambers (14) are respectively connected with the bottoms of the 6 separation chambers (3), perforated ventilation plates (7) are installed at the joints of the bottoms of the separation chambers (3) and the tops of the medium and low temperature hot air wind chambers (14), the perforated ventilation plates (7) are obliquely placed, one sides, close to the heavy product receiving port (6), of the perforated ventilation plates (7) are inclined downwards, and the aperture of the ventilation plates (7) is smaller than the granularity of the finest material.

Technical Field

The invention relates to a device capable of realizing the online adjustment and separation function of fine-grained minerals, which comprises fine-grained metal minerals, fine-grained non-metal minerals, fine-grained solid wastes and the like, and belongs to the technical field of dry fine-grained mineral separation equipment.

Background

In the industrial mineral separation process, the dry separation mode and the process technology related to the fine-fraction minerals do not reach a mature stage, so that the fine-fraction minerals cannot be effectively separated, and the reasons include that: (1) the granularity difference of the minerals is not obvious due to the over-fine granularity of the materials, and the fine-grained materials to be sorted are easy to accumulate due to the excessive materials to be treated in the sorting process; (2) the fine-grained minerals are easy to cause the phenomenon of conglutination in the process of material accumulation due to over-fine granularity, developed pores and high water content. By combining the two points, the conventional dry separation efficiency of fine-grained minerals and the quality of separated materials cannot be greatly improved, so that the problem which needs to be solved urgently in the process of dry separation of fine-grained materials at present is solved.

Chinese patent CN109331988A discloses a metal mineral enrichment process and system based on dry separation equipment, in which the raw ore to be separated is broken and crushed and then enters a photoelectric separator to be separated to obtain coarse fraction concentrate and tailings, the coarse concentrate is classified and screened to obtain fine fraction coarse concentrate, and the fine fraction coarse concentrate enters a vibrating fluidized bed separator to be separated to obtain concentrate and tailings. Although the patent can realize the simultaneous separation of metal minerals with different granularities of coarse, medium and fine, the separation process technology of fine-grained materials has certain difficulty, the separation of the coarse, medium and fine-grained materials can possibly cause the neglect of the separation of the fine-grained materials, the pertinence is not strong, the granularity difference of the fine-grained materials is still too large, and the final separation is not thorough.

Chinese patent CN104437909A discloses a dry pulse cyclone separation device and method suitable for fine materials, the separation device has a cyclone cylinder and a blower device, the independent air chamber, by adjusting the air volume of the independent air chamber, the air velocity of the air passing through the air inlet on the wall of the cyclone cylinder increases in turn along the direction from the top to the bottom of the cyclone cylinder, a stable air bed layer is formed on the inner wall of the cyclone cylinder, the separation of fine materials according to density can be realized, and a better separation effect is achieved.

So far, the substantial structural characteristics of fine-grained minerals designed for practical problems of granularity and influence of moisture are not reported in published patents, and the engineering problems such as effective solving can effectively improve the dry separation efficiency of fine grains.

Disclosure of Invention

The invention aims to solve the technical problem of providing the fine-grained mineral online adjusting and sorting device, which can sort and dry fine-grained minerals twice, can effectively improve the sorting efficiency of the minerals and can realize accurate sorting.

The technical scheme for solving the technical problems is as follows:

an on-line adjusting and sorting device for fine-grained minerals comprises a trapezoidal sorting groove, an air distribution plate, sorting chambers, a support, a high-temperature hot air chamber and a medium-low temperature hot air chamber, wherein a feeding port is formed in the upper end of the trapezoidal sorting groove, the air distribution plate is installed in the inner cavity of the trapezoidal sorting groove and is divided into three layers, the three layers of air distribution plates are overlapped in the vertical direction, the peripheral edges of the three layers of air distribution plates are respectively connected with the inner wall of the trapezoidal sorting groove, a plurality of sorting chambers are respectively connected with two side walls of the trapezoidal sorting groove, the sorting chambers are respectively opposite to the upper edge of the air distribution plate of the trapezoidal sorting groove, a discharge port is formed at the joint of the side wall of the trapezoidal sorting groove and each sorting chamber, a discharge gate is installed on the discharge port, a light product receiving port is formed in the upper part of each sorting chamber, a heavy product receiving port is formed in the lower part of each sorting groove, the lower end of, the lower ends of the high-temperature hot air chamber and the middle-low temperature hot air chamber are connected with a support, and the lower end of the support is connected with a support.

Above-mentioned fine-grained mineral online adjustment sorting unit, every layer of cloth aerofoil comprises two flat boards, and the one end of two flat boards is connected, and two flat board both sides are arranged along the below slope, form triangle-shaped cross-section structure, and the aperture of three-layer cloth aerofoil reduces by last to lower in proper order respectively, and the row's of three-layer cloth aerofoil upper edge and trapezoidal separation tank inside wall junction arranges the bin gate for the one-way door of outwards opening.

The fine-grained mineral online adjusting and sorting device is characterized in that the number of the sorting chambers is 6, the two sorting chambers connected with the one layer of air distribution plate are respectively fixed at the tail parts of the two outer sides of the trapezoidal sorting groove, the two sorting chambers connected with the two layers of air distribution plates are respectively fixed at the middle parts of the two outer sides of the trapezoidal sorting groove, the two sorting chambers connected with the three layers of air distribution plates are respectively fixed at the front ends of the two outer sides of the trapezoidal sorting groove, and the six sorting chambers are symmetrically arranged outside the trapezoidal sorting groove.

According to the fine-fraction mineral online adjusting and sorting device, a light product receiving port is arranged near the connection part of each sorting chamber and the trapezoidal sorting groove, a negative pressure cyclone is arranged at the upper part of the light product receiving port, and a heavy product receiving port is arranged at the bottom of each sorting chamber.

In the fine-fraction mineral online adjustment sorting device, six medium-low temperature hot air chambers are respectively connected with the bottoms of 6 sorting chambers, perforated ventilation plates are arranged at the joints of the bottoms of the sorting chambers and the tops of the medium-low temperature hot air chambers, the perforated ventilation plates are obliquely arranged, one sides of the perforated ventilation plates, which are close to a heavy product receiving port, are inclined downwards, and the aperture of the ventilation plates is smaller than the finest material granularity.

The invention has the beneficial effects that:

three layers of air distribution plates are arranged in the trapezoidal sorting groove, fine-grained materials sequentially pass through the three layers of air distribution plates to be divided into three types of grain sizes, primary sorting is achieved, two sides of the air distribution plates are inclined downwards, the sorted fine-grained materials can be discharged from the air distribution plates in a short time, the problem that sorting is influenced by accumulation is solved, and sorting efficiency is effectively improved; the multiple sorting chambers are symmetrically distributed on two sides of the trapezoidal sorting groove, so that the processing capacity of fine-grained minerals is increased, the sorting chambers can sort the density of materials, heavy products are collected at a heavy product receiving port below the sorting chambers, and light products are collected at a light product receiving port above the sorting chambers under the action of the negative pressure cyclone and the air chambers; the air volume generated by the high-temperature hot air chamber and the medium-low temperature hot air chamber can blow and disperse the fine-grained materials to be sorted, so that the fine-grained materials to be sorted are prevented from being stacked together to influence sorting, meanwhile, the fine-grained materials to be treated can be dried, and the sorting accuracy and the quality of the sorted materials are improved.

The invention is the innovative design of fine-grained mineral sorting equipment, has scientific and reasonable structure and convenient use, realizes the function of fine-grained mineral on-line adjustment and sorting, can make materials sorted primarily according to granularity and sorted secondarily according to density in a device, can effectively solve the problems of low sorting efficiency, large processing capacity and the like of fine-grained minerals, and can optimize and solve the problems that the existing conventional fine-grained materials have excessively fine granularity, unobvious sorting effect, easy accumulation and high moisture content and easy cohesion.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of fig. 1.

The figures are labeled as follows: the device comprises a feeding port 1, a trapezoidal separation groove 2, a separation chamber 3, a support 4, a support column 5, a heavy product receiving port 6, a perforated ventilating plate 7, a light product receiving port 8, a negative pressure cyclone 9, a discharge gate 10, an air distribution plate 11, a discharge port 12, a high-temperature hot air chamber 13 and a medium-low temperature hot air chamber 14.

Detailed Description

The invention consists of a primary sorting part, a secondary sorting part and a blast part.

Wherein, the primary separation part comprises a trapezoidal separation groove 2, an air distribution plate 11 and a discharge door 10; the secondary separation part comprises a separation chamber 3, a heavy product receiving port 6, a light product receiving port 8, a negative pressure cyclone 9 and a perforated ventilation plate 7; the blast part comprises a high-temperature hot air chamber 13, a medium-low temperature hot air chamber 14, a support 5 and a support 4.

Fig. 1 shows that the upper end of the trapezoidal sorting trough 2 is provided with a feeding opening 1. Install air distribution plate 11 in 2 inner chambers of trapezoidal separation tank, air distribution plate 11 is the three-layer, and three-layer air distribution plate 11 overlaps in the vertical direction and places, and the edge all around of three-layer air distribution plate 11 is connected with trapezoidal separation tank 2's inner wall respectively, and the aperture of three-layer air distribution plate 11 reduces by last under to in proper order respectively. The air distribution plate 11 can enable fine-grained materials to sequentially pass through the three layers of air distribution plates 11, so that the fine-grained materials are divided into three types of grain grades, and primary sorting is achieved.

Fig. 1 shows that each layer of the wind distribution plate 11 is composed of two flat plates, one ends of the two flat plates are connected, and two sides of the two flat plates are obliquely arranged along the lower part to form a triangular section structure. The air distribution plate 11 is arranged in a three-dimensional triangular splicing mode, so that the sorted fine-grained materials can be discharged from the air distribution plate 11 in a short time, the problem that the sorting is influenced by accumulation is solved, and the sorting efficiency is effectively improved.

Fig. 1 and 2 show that a plurality of separation chambers 3 are respectively connected with two side walls of a trapezoidal separation groove 2, the separation chambers 3 are respectively opposite to the upper edge of an air distribution plate 11 of the trapezoidal separation groove 2, a discharge port 12 is arranged at the joint of the side wall of the trapezoidal separation groove 2 and each separation chamber 3, a discharge gate 10 is arranged on the discharge port 12, and the discharge gate 10 is an outward-opening one-way gate. When fine-grained materials to be sorted slide down along the inclined plane of the air distribution plate 11, the discharge door 10 is knocked open to form a discharge hole 12 for discharging conveniently, and when no materials exist, the discharge door 10 is automatically closed to enable the trapezoidal sorting groove 2 to form a closed space.

Fig. 1 and 2 show that the number of the sorting chambers 3 is 6, two sorting chambers 3 connected with one layer of air distribution plate 11 are respectively fixed at the tail parts of two outer sides of a trapezoidal sorting groove 2, two sorting chambers 3 connected with the two layers of air distribution plates 11 are respectively fixed at the middle parts of two outer sides of the trapezoidal sorting groove 2, two sorting chambers 3 connected with the three layers of air distribution plates 11 are respectively fixed at the front ends of two outer sides of the trapezoidal sorting groove 2, and the six sorting chambers 3 are symmetrically arranged outside the trapezoidal sorting groove 2.

Fig. 1 shows that a plurality of sorting chambers 3 and 2 outer walls of trapezoidal sorting groove are welded together, and foraminiferous ventilating plate 7 passes through the bolt fastening in sorting chamber 3 bottom, and foraminiferous ventilating plate 7 can be dismantled, and heavy product material receiving opening 6 sets up in sorting chamber 3 bottom, and light product material receiving opening 8 is installed and has been arranged negative pressure swirler 9 in sorting chamber 3 top and next door, is convenient for retrieve lighter material. The perforated ventilation plate 7 is obliquely arranged, and one side of the perforated ventilation plate 7 close to the heavy product receiving port 6 inclines downwards.

Figure 1 shows that the lower end of the trapezoidal sorting trough is connected to a high temperature hot air plenum 13 for primary sorting and drying of the material. The lower end of each sorting chamber is respectively connected with a medium-low temperature hot air chamber 14 for further sorting and drying. The lower ends of the high-temperature hot air chamber 13 and the middle-low temperature hot air chamber 14 are connected with a support 5, and the lower end of the support 5 is connected with a support 4. The high-temperature hot air chamber 13 and the medium-low temperature hot air chamber 14 have the functions of blowing and scattering fine-grained materials to be sorted in the primary sorting part and the secondary sorting part by using the air volume generated in the air chambers, and avoiding the fine-grained materials to be sorted from being stacked together to influence sorting; and secondly, the heat of the wind generated in the wind chamber is used for drying the fine-grained materials to be treated, so that the sorting accuracy and the quality of the sorted materials are improved. The hot air in the two types of air chambers can utilize industrial waste heat, and the hot air is collected in a blower and used for the separation process of the device.

The path of the fine-grained mineral separation route of the device is as follows:

the fine-grained minerals enter the trapezoidal separation groove 2 and are separated by the three layers of air distribution plates 11 to form three types of minerals with different granularities, then the fine-grained minerals separated on the air distribution plates 11 slide off the inclined plates, a discharge door 10 on the wall of the trapezoidal separation groove 2 is knocked open and then is discharged from a discharge hole 12, then the fine-grained minerals enter the separation chamber 3 for separation, under the action of the medium-low temperature hot air chamber 14 and the negative pressure cyclone 9, the light products are upwards collected at a light product receiving hole 8, the heavy products slide off from the inclined perforated ventilation plate 7 to a heavy product receiving hole 6, and finally the fine-grained minerals are completely separated.

The using process of the invention is as follows:

selecting fine-grained coal samples to be sorted of 0.5-1mm, firstly carrying out granularity analysis so as to select the aperture of a corresponding air distribution plate 11, selecting the apertures of 0.9mm, 0.7mm and 0.5mm from top to bottom in sequence, then throwing the fine-grained coal samples to be processed into a trapezoidal sorting tank 2 through a feeding port 1, drying the fine-grained coal samples under the action of a high-temperature hot air chamber 13, dispersing the fine-grained coal samples to be sorted on the air distribution plate 11, carrying out primary sorting, leaving the fine-grained coal samples of 0.9-1mm on the air distribution plate 11 of 0.9mm aperture, leaving the fine-grained coal samples of 0.7-0.9mm on the air distribution plate 11 of 0.7mm aperture through meshes, sliding out the fine-grained mineral samples of three types along the inclined air distribution plate 11, knocking open a closed discharge port 10, and then falling into the sorting chambers 3 on two sides of the trapezoidal sorting tank 2 from the discharge port 12, under the action of a medium-low temperature hot air chamber 14 connected with the sorting chamber 3, the primarily sorted materials are dried again and blown away in the sorting chamber 3 for secondary sorting, heavy materials slide down from an inclined perforated ventilation plate 7 to a heavy product receiving port below for collection 6, light products are collected at a light product receiving port above under the action of wind power and a negative pressure cyclone 9, and finally, the fine-grained coal sample of 0.5-1mm is sorted again according to density on the basis of sorting according to granularity.

One embodiment of the invention is as follows:

the length of the upper bottom of the trapezoidal sorting groove 2 is 900mm, the width of the upper bottom is 1000mm, the length of the lower bottom is 300mm, the width of the lower bottom is 1000mm, the height is 950mm, and the length of the feeding port 1 is 900 mm;

the length of the sorting chamber 3 is 300mm, the width is 300mm, and the height is 600 mm;

the length of the support 4 is 150mm, and the width is 200 mm;

the height of the pillar 5 is 400 mm;

the length of the upper layer wind distribution plate 11 is 350mm, the length of the middle layer wind distribution plate 11 is 300mm, and the length of the lower layer wind distribution plate is 250 mm;

the model of the negative pressure cyclone 9 is FX 100;

the length of the upper bottom of the high-temperature hot air chamber 13 is 300mm, the length of the lower bottom is 170mm, the width is 1000mm, and the height is 140 mm;

the length of the upper bottom of the medium-low temperature hot air chamber 14 is 150mm, the length of the lower bottom is 60mm, and the width is 300 mm.