CN211864161U

CN211864161U - Coal slime recovery and utilization device for coal preparation plant

Info

Publication number: CN211864161U
Application number: CN202020282937.3U
Authority: CN
Inventors: 李高佳; 邬江; 张科
Original assignee: Inner Mongolia Manshi Coal Group Guanzigou Coal Co ltd
Current assignee: Inner Mongolia Manshi Coal Group Guanzigou Coal Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-06
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a coal slime recovery and utilization device of a coal preparation plant, which comprises a scraper, wherein the scraper is fixedly connected with the input end of a coal slime treatment device through a conveyer belt, the output end of the coal slime treatment device is fixedly connected with the input end of a filter pressing device through a conveyer belt, the output end of the filter pressing device is fixedly connected with the input end of a coal slime chute, and the output end of the coal slime chute is fixedly connected with the input end of a drying device through a conveyer belt; the coal slime treatment device comprises a heavy-medium shallow slot separator, a heavy-medium cyclone separator and a sedimentation filtering centrifuge. The utility model discloses an increase sedimentation filter centrifuge and increase drying device, the coal slime gets into drum-type coal slime desiccator is dry after the filter-pressing, can handle coal slime granule-0.15 mm, and the transportation speed is fast, and good clearance does not spatter the material, and long service life increases the coal slime rate of recovery and utilization ratio, newly increases the conveyer belt under the coal slime chute, and direct coal slime stoving workshop reduces the cost, improves environmental protection.

Description

Coal slime recovery and utilization device for coal preparation plant

Technical Field

The utility model relates to a coal slime technical field specifically is a coal preparation plant coal slime is retrieved and is utilized device.

Background

Most coal production enterprises are matched with a washing system, 15% -20% of coal slime exists after washing, wet coal slime is few in demand customers, vehicles are needed to transport the coal slime out of a production field, resource waste and environmental pollution are caused, the cost for transferring the coal slime is high, and the problem of disposal of the washed coal slime is particularly urgent. The instantaneous quantity of raw coal is improved, and the core competitiveness of a process system is ensured; the common separation processes of the existing coal preparation plant are 200-13mm heavy medium shallow slot separation and 13-1.5mm heavy medium cyclone separation.

However, the coal slime with the particle size of-0.15 mm cannot be treated in the existing coal preparation plant, and the coal slime falls to the ground through a running conveying belt and is transported to a drying plant for drying by a loader and a dump truck, so that the peripheral environment is polluted, the environmental protection is poor, and the cost is high, therefore, the improvement is made, and the coal slime recycling device for the coal preparation plant is provided.

SUMMERY OF THE UTILITY MODEL

For solving the defect that prior art exists, the utility model provides a coal slime recovery and utilization device of coal preparation plant.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a coal slime recovery and utilization device of coal preparation plant, including scraping the trigger, scrape trigger and pass through conveyer belt and coal slime processing apparatus input fixed connection, coal slime processing apparatus output passes through conveyer belt and filter-pressing apparatus input fixed connection, filter-pressing apparatus output and coal slime chute input fixed connection, coal slime chute output passes through conveyer belt and drying device input fixed connection; the coal slime treatment device comprises a heavy-medium shallow groove separator, a heavy-medium cyclone separator and a sedimentation filtering centrifuge, the filter pressing device comprises three filter presses, and the drying device comprises three dryers; heavy-medium shallow slot separator input passes through conveyer belt fixed connection with the scraper conveyor output, two outputs of heavy-medium shallow slot separator respectively with first pressure filter input and heavy-medium swirler separator input fixed connection, two outputs of heavy-medium swirler separator respectively with second pressure filter input and sedimentation filter centrifuge input fixed connection, two outputs of sedimentation filter centrifuge respectively with third pressure filter input and external collection device fixed connection, it is three the pressure filter output respectively through the coal slime chute and with the three desiccator input one-to-one fixed connection of conveyer belt.

As an optimized technical scheme of the utility model, sedimentation filter centrifuge specification model is LWZ1200x2000, and the handling capacity is 60t/h, and the extra income is 16%.

As a preferred technical scheme of the utility model, the desiccator includes drying cylinder, drying cylinder slope fixed mounting is on the support frame, fixed mounting has the inlet pipe on the top surface of drying cylinder highest end, drying cylinder lowest side fixed mounting has the discharging pipe, be equipped with the pivot in the drying cylinder, pivot one end is passed through the bearing with drying cylinder lowest inside wall and is rotated and be connected, drying cylinder highest end lateral wall and motor output end fixed connection are worn out to the pivot other end, motor fixed mounting is on drying cylinder, fixed a plurality of scraper blade blades and the blade of being equipped with in the pivot, be equipped with a scraper blade between two blades, the equidistance is fixed with a plurality of lugs on the blade outer wall.

As an optimal technical scheme of the utility model, fixed embedding has a plurality of drying lamps on the inner wall of drying drum top, fixed mounting has the heating resistor silk in the inner wall of drying drum bottom.

As an optimal technical scheme of the utility model, the relative crisscross fixed a plurality of baffles that are equipped with on the inlet pipe inner wall, the inlet pipe cross-section is trapezoidal, the baffle adopts the crescent moon board.

As an optimal technical scheme of the utility model, motor, drying lamp and heating resistor silk and external power supply electric connection.

The utility model has the advantages that: this kind of coal preparation plant coal slime is retrieved and is utilized device, through increasing sedimentation filter centrifuge and increasing drying device, the coal slime gets into drum-type coal slime desiccator drying after the filter-pressing, can handle coal slime granule-0.15 mm, the transportation speed is fast, good clearance, the material that does not spatter, long service life increases coal slime rate of recovery and utilization ratio, increases the conveyer belt under the coal slime chute newly, direct coal slime stoving workshop, and the cost is reduced improves environmental protection.

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 invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a process structure of a coal slurry recycling device of a coal preparation plant of the present invention;

FIG. 2 is the schematic diagram of the structure of the drying machine barrel of the coal slurry recycling and utilizing device of the coal preparation plant.

In the figure: 1. heavy-medium shallow slot sorting machine; 2. a dense medium cyclone separator; 3. a sedimentation filtration centrifuge; 4. a filter press; 5. a dryer; 6. drying the roller; 7. a feed pipe; 8. a baffle plate; 9. a rotating shaft; 10. a blade of a scraper; 11. a blade; 12. a bump; 13. a discharge pipe; 14. a support frame; 15. a drying lamp; 16. heating the resistance wire.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1 and 2, the utility model relates to a coal slime recovery and utilization device of a coal preparation plant, which comprises a scraper, wherein the scraper is fixedly connected with the input end of a coal slime treatment device through a conveyer belt, the output end of the coal slime treatment device is fixedly connected with the input end of a filter pressing device through a conveyer belt, the output end of the filter pressing device is fixedly connected with the input end of a coal slime chute, and the output end of the coal slime chute is fixedly connected with the input end of a drying device through a conveyer belt; the coal slime treatment device comprises a heavy-medium shallow groove separator 1, a heavy-medium cyclone separator 2 and a sedimentation filtering centrifuge 3, the filter pressing device comprises three filter presses 4, and the drying device comprises three dryers 5; heavy-duty medium shallow slot sorter 1 input passes through conveyer belt fixed connection with the scraper conveyor output, 1 two outputs of heavy-duty medium shallow slot sorter respectively with 4 inputs of first pressure filter and 2 inputs fixed connection of heavy-duty medium swirler sorter, two outputs of heavy-duty medium swirler sorter 2 respectively with 4 inputs of second pressure filter and 3 inputs fixed connection of sedimentation filter centrifuge, 3 two outputs of sedimentation filter centrifuge respectively with 4 inputs of third pressure filter and external collection device fixed connection, it is three 4 outputs of pressure filter pass through the coal slime chute respectively and with 5 inputs one-to-one fixed connection of the three desiccator of conveyer belt.

Wherein the specification and model of the sedimentation filtration centrifuge 3 is LWZ1200x2000, the treatment capacity is 60t/h, and the external water is 16%.

Wherein, desiccator 5 includes drying

cylinder

6, 6 slope fixed mounting of drying cylinder is on support frame 14, fixed mounting has inlet pipe 7 on the top surface of 6 highest ends of drying cylinder, the side fixed mounting of 6 lowest ends of drying cylinder has discharging pipe 13, be equipped with pivot 9 in the drying cylinder 6, pivot 9 one end is passed through the bearing with 6 lowest end inside walls of drying cylinder and is connected, 6 highest end lateral wall and motor output fixed connection of drying cylinder are worn out to the 9 other end of pivot, motor fixed mounting is on drying cylinder 6, fixed a plurality of scraper blade 10 and the blade 11 of being equipped with in the pivot 9, be equipped with a scraper blade 10 between two blade 11, equidistantly on the blade 11 outer wall be fixed with a plurality of lugs 12.

The drying device comprises a drying drum 6, a plurality of drying lamps 15, a heating resistance wire 16 and a heating control system, wherein the plurality of drying lamps 15 are fixedly embedded in the inner wall of the top of the drying drum 6, and the heating resistance wire 16 is fixedly installed in the inner wall of the bottom of the drying drum 6.

Wherein, relative crisscross fixed a plurality of baffles 8 that are equipped with on the 7 inner walls of inlet pipe, 7 cross-sections of inlet pipe are trapezoidal, baffle 8 adopts the crescent moon board.

The motor, the drying lamp 15 and the heating resistance wire 16 are electrically connected with an external power supply.

The working principle is as follows:

when the sedimentation and filtration centrifuge 3 is used, the LWZ1200x2000 sedimentation and filtration centrifuge 3 is additionally arranged, the treatment capacity is 60t/h, the external water is 16 percent, calculated according to the content of 4 percent of fine coal slime, the coal slime with the diameter of-0.15 mm is 22.72t/h, the installed coal slime is increased by about 10 percent, namely 57t/h, and the sedimentation and filtration centrifuge 3 can meet the requirements.

A drying device is added, the filtered coal slime enters a drum-type coal slime dryer 5 for drying, the dried product can meet the requirements of customers and can be directly sold to the outside, the coal slime processed by a centrifugal machine has 22.44 percent of ash content and 20.66 percent of total water, the external water of the dried product can reach 14 percent,

the whole system is high in transportation speed, easy to clean, free of splashing and long in service life, the recovery rate and the utilization rate of the coal slime are increased, the coal slime is directly conveyed to the designated position of a coal slime drying plant through the conveying belt, the cost is reduced, and the environmental protection is improved.

In order to improve the dry recovery efficiency of coal slime, relative crisscross fixed a plurality of baffles 8 that are equipped with on the 7 inner walls of inlet pipe, 7 cross-sections of inlet pipe are trapezoidal, baffle 8 adopts the crescent moon board, can effectual coal slime slow down enter into 6 speed of drying drum, it can not produce in 6 pan feeding play of drying drum and pile up to have guaranteed, whole drying process continuity has been guaranteed, drying efficiency is improved, utilize pivot 9 to rotate simultaneously, drive scraper blade 10 and blade 11, the equidistance is fixed with a plurality of lugs 12 on the 11 outer walls of blade, can carry out broken handle to the great coal slime of volume, prevent that the great coal slime of volume is difficult for the drying, drying efficiency is guaranteed, the rate of recovery is improved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal slime recycling and utilizing device of a coal preparation plant comprises a scraper, and is characterized in that the scraper is fixedly connected with an input end of a coal slime treatment device through a conveying belt, an output end of the coal slime treatment device is fixedly connected with an input end of a filter pressing device through a conveying belt, an output end of the filter pressing device is fixedly connected with an input end of a coal slime chute, and an output end of the coal slime chute is fixedly connected with an input end of a drying device through a conveying belt;

the coal slime treatment device comprises a heavy-medium shallow groove separator (1), a heavy-medium cyclone separator (2) and a sedimentation filtering centrifuge (3), the filter pressing device comprises three filter presses (4), and the drying device comprises three dryers (5);

heavy-duty medium shallow slot sorter (1) input passes through conveyer belt fixed connection with the scraper conveyor output, two outputs of heavy-duty medium shallow slot sorter (1) respectively with first pressure filter (4) input and heavy-duty medium swirler sorter (2) input fixed connection, two outputs of heavy-duty medium swirler sorter (2) respectively with second pressure filter (4) input and subside filter centrifuge (3) input fixed connection, subside filter centrifuge (3) two outputs respectively with third pressure filter (4) input and external collection device fixed connection, three pressure filter (4) output respectively through the coal slime chute with the three desiccator of conveyer belt (5) input one-to-one fixed connection.

2. The coal slime recovery and utilization device of claim 1, wherein the sedimentation filter centrifuge (3) has a specification model of LWZ1200x2000, a treatment capacity of 60t/h and an external water content of 16%.

3. The coal slime recycling and utilizing device of claim 1, wherein the dryer (5) comprises a drying drum (6), the drying drum (6) is obliquely and fixedly mounted on a supporting frame (14), the feeding pipe (7) is fixedly mounted on the top surface of the highest end of the drying drum (6), the discharging pipe (13) is fixedly mounted on the side surface of the lowest end of the drying drum (6), a rotating shaft (9) is arranged in the drying drum (6), one end of the rotating shaft (9) is rotatably connected with the inner side wall of the lowest end of the drying drum (6) through a bearing, the other end of the rotating shaft (9) penetrates out of the side wall of the highest end of the drying drum (6) and is fixedly connected with the output end of a motor, the motor is fixedly mounted on the drying drum (6), and a plurality of scraper blades (10) and blades (11) are fixedly arranged on the rotating shaft (9), a scraper blade (10) is arranged between the two blades (11), and a plurality of convex blocks (12) are fixed on the outer wall of each blade (11) at equal intervals.

4. The coal slime recycling and utilizing device of the coal preparation plant according to claim 3, wherein a plurality of drying lamps (15) are fixedly embedded in the inner wall of the top of the drying drum (6), and heating resistance wires (16) are fixedly installed in the inner wall of the bottom of the drying drum (6).

5. The coal slime recovery and utilization device of claim 4, wherein a plurality of baffle plates (8) are fixedly arranged on the inner wall of the feeding pipe (7) in a relatively staggered manner, the cross section of the feeding pipe (7) is trapezoidal, and the baffle plates (8) are crescent plates.

6. The coal slime recycling and utilizing device of claim 5, wherein the motor, the drying lamp (15) and the heating resistance wire (16) are electrically connected with an external power supply.