CN215137371U

CN215137371U - Precipitated coal slime cleaning, lifting and dewatering device

Info

Publication number: CN215137371U
Application number: CN202121202369.2U
Authority: CN
Inventors: 李毅红; 程志伟; 吴迪; 齐小豆; 王进
Original assignee: Shaanxi Coal And Chemical And Coal Preparation Co ltd
Current assignee: Shaanxi Coal And Chemical And Coal Preparation Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-14
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a deposit coal slime clearance and promote dewatering device, including driving motor, transmission main shaft, carry inner tube, inner tube filter cloth, closed urceolus, helical blade, level gauge, bottom flowing back gate, wheel carrier, walking wheel etc. this device collects the coal slime transportation and promotes, vacuum filtration dehydration, material homodisperse in an organic whole, has solved coal preparation plant and has precipitated coal slime and promote the clearance difficult problem, and not only the device is light, simple structure, convenient operation, remove lightly, high-efficient reliable, area is little, and material strong adaptability, and degree of automation is high.

Description

Precipitated coal slime cleaning, lifting and dewatering device

Technical Field

The utility model relates to a deposit coal slime clearance field, concretely relates to deposit coal slime clearance and promote dewatering device.

Background

Coal slime water is produced wastewater of a coal preparation plant and is commonly used in processes of running, overflowing, dripping, leaking and cleaning in a workshop. The slime water contains fine coal and partial large blocks, and is generally subjected to primary precipitation in a water collecting pit (pool) and then is conveyed to subsequent slime water treatment by a sewage pump. Along with the extension of production time, the coal slime deposited at the bottom in the water collecting tank is gradually increased, and the coal slime water needs to be regularly cleaned manually to ensure normal pollution discharge treatment. The manual processing mode not only has high labor intensity and time and labor consumption, but also has the problems of large water content, difficult processing and the like in the process of removing the precipitated coal slime. In part of coal preparation plants, a lift hopper is arranged in a water collecting pit to clean coarse-grained coal slime regularly, and although the problem of manual cleaning is solved well, the defects of large occupied area, high investment and large coal slime water content exist.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing a sediment coal slime clearance promotes dewatering device, its simple structure, convenient operation, high-efficient reliable, area is little, can reduce workman intensity of labour, and sediment coal slime can mix smoothly to the production by-product in, avoids the secondary pollution who deposits the coal slime.

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

the utility model provides a precipitated coal slime cleaning and lifting dehydration device, which comprises a conveying inner barrel, wherein the two ends of the conveying inner barrel are respectively provided with an upper end cover and a lower end cover, a rotatable transmission main shaft which is wound with helical blades is connected between the upper end cover and the lower end cover, a driving motor is arranged on the upper end cover, the upper end of the transmission main shaft penetrates out of the upper end cover and is connected with the output shaft of the driving motor in a transmission way, the upper end of the conveying inner barrel is provided with a coal slime discharge opening communicated with the inner cavity of the conveying inner barrel, the lower end cover is provided with a plurality of feed inlets convenient for feeding, the periphery of the conveying inner barrel is also nested with a closed outer barrel, the upper end of the closed outer barrel is communicated with a vacuum pump, a travelling wheel and a wheel carrier are hermetically fixed and installed between the bottom of the closed outer barrel and the lower end cover, the bottom of the closed outer barrel is provided with a drainage gate, the conveying inner barrel is provided with a plurality of filtrate holes and inner barrel filter cloth is arranged between the inner wall and the helical blades, the bottom of the inner cylinder filter cloth is fixed on the lower end cover.

Preferably, the inner cylinder filter cloth is a barrel-shaped structure which is supported by a steel bar framework and is provided with the filter cloth, and the steel bar framework is fixed on the lower end cover through a pressing bar bolt at the bottom of the steel bar framework.

Preferably, the pore size of the filtering holes on the filtering cloth is 0.15-0.25 mm.

Preferably, a liquid level meter is further arranged at the position, close to the liquid discharge gate, of the lower end of the closed outer cylinder, and the installation position of the liquid level meter is 20-30 cm lower than the filtrate hole area of the conveying inner cylinder.

Preferably, the filtrate hole area of the conveying inner barrel is located at 1/5-4/5 in the height direction.

Preferably, the bottom of the closed outer cylinder is flush with the lower end cover at the bottom of the conveying inner cylinder, and the top of the closed outer cylinder is 20-30 cm higher than the filtrate hole area of the conveying inner cylinder.

The beneficial effects of the utility model reside in that:

1) the device integrates coal slime transportation lifting, vacuum filtration dehydration and uniform material dispersion, and solves the problem of lifting and cleaning the bottom of the precipitated coal slime sedimentation tank;

2) the treated coal slime can be mixed into the existing coal mine products (such as filter-pressing coal slime and coal blending), so that the problem of difficult treatment of sticky and wet coal slime is avoided;

3) the device is light in volume, convenient to move, capable of being used for settling coal slime at the bottom of each pool (pit) of a coal mine and high in practicability;

4) the device has the advantages of simple structure, convenient operation, light and handy movement, high efficiency, reliability, small occupied area, strong material adaptability and high automation degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a device for cleaning, lifting and dewatering precipitated coal slime provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an inner cylinder filter cloth provided by an embodiment of the utility model.

Description of reference numerals:

1. a drive motor; 2. a transmission main shaft; 3. a conveying inner cylinder; 4. inner cylinder filter cloth; 5. sealing the outer cylinder; 6. a helical blade; 7. a liquid level meter; 8. a bottom drainage gate; 9. a wheel carrier; 10. a traveling wheel; 11. a coal slime discharge opening; 12. a feeding port; 13. an interface; 41. a steel bar framework; 42. filtering cloth; 43. and (7) pressing strips.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1 to 2, a precipitated coal slime cleaning and lifting dehydration device comprises a conveying inner barrel 3, wherein an upper end cover and a lower end cover are respectively arranged at two ends of the conveying inner barrel 3, a transmission main shaft 2 which can rotate and is wound with a spiral blade 6 is connected between the upper end cover and the lower end cover, a driving motor 1 is arranged on the upper end cover, the upper end of the transmission main shaft 2 is in transmission connection with an output shaft of the driving motor 1 after penetrating out of the upper end cover, a coal slime discharging opening 11 communicated with an inner cavity of the conveying inner barrel 3 is arranged at the upper end of the conveying inner barrel 3, a plurality of feeding openings 12 convenient for feeding are formed in the lower end cover, a closed outer barrel 5 is further nested at the periphery of the conveying inner barrel 3, the upper end of the closed outer barrel 5 is communicated with a vacuum pump through an interface 13, a walking wheel 10 and a wheel carrier 9 are fixed and installed between the bottom of the closed outer barrel 5 and the lower end cover, a drainage gate 8 is arranged at the bottom of the closed outer barrel 5, the conveying inner cylinder 3 is provided with a plurality of filtrate holes, inner cylinder filter cloth 4 is arranged between the inner wall of the conveying inner cylinder 3 and the helical blade 6, and the bottom of the inner cylinder filter cloth 4 is fixed on the lower end cover.

The inner cylinder filter cloth 4 is a barrel-shaped structure which is supported by a steel bar framework 41 and is provided with a filter cloth 42, and the steel bar framework 41 is fixed on a lower end cover through a pressing bar 43 at the bottom of the steel bar framework by bolts.

The pore size of the filtering holes on the filtering cloth 42 is 0.15-0.25 mm.

And a liquid level meter 7 is further arranged at the position, close to the drainage gate 8, of the lower end of the closed outer cylinder 5, and the installation position of the liquid level meter 7 is 20-30 cm lower than the filtrate hole area of the conveying inner cylinder 3.

The filtrate hole area of the conveying inner cylinder 3 is located at 1/5-4/5 in the height direction.

The bottom of the closed outer cylinder 5 is flush with the lower end cover at the bottom of the conveying inner cylinder 3, and the top of the closed outer cylinder 5 is 20-30 cm higher than the filtrate hole area of the conveying inner cylinder 3.

When in use, under the action of the driving motor, the spiral blade 6 continuously rotates to continuously lift and convey the precipitated coal slime from the feeding port 12 at the bottom of the conveying inner cylinder 3 upwards; the upper part of the closed outer cylinder 5 is connected with a vacuum pump, under the negative pressure action of the vacuum pump, moisture in the coal slurry continuously passes through the filter cloth 4 of the inner cylinder and the filtrate hole area of the conveying inner cylinder 3, and filtrate is formed between the conveying inner cylinder 3 and the closed outer cylinder 5; when the filtrate is collected between the conveying inner cylinder 3 and the closed outer cylinder 5 to reach a certain height, the bottom drainage gate 8 is automatically opened and directly drained into the pool or the pit from the lower port of the closed outer cylinder 5.

Under the action of the helical blades 6, solid particle coal slime in the coal slime is continuously dispersed, cut, filtered, dehydrated and conveyed upwards to form dispersed coal slime which is discharged from a discharge opening for treatment; the bottom of the device is provided with traveling wheels 10, so that the deposited coal slime in different areas can be conveniently moved and cleaned.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a sediment coal slime clearance promotes dewatering device which characterized in that: including the transport inner tube (3) that both ends were equipped with upper end cover and lower end cover respectively, be connected with one between upper end cover and the lower end cover can the pivoted and twine transmission main shaft (2) that have helical blade (6), be equipped with driving motor (1) on the upper end cover, transmission main shaft (2) upper end is worn out outside the upper end cover and is connected with driving motor's (1) output shaft transmission, carry inner tube (3) upper end and be equipped with coal slime discharge opening (11) of intercommunication its inner chamber, it has a plurality of pan feeding mouths (12) of pan feeding of being convenient for to open on the lower end cover, carry inner tube (3) periphery still nested closed urceolus (5), the upper end intercommunication vacuum pump of closed urceolus (5), it seals between sealed urceolus (5) bottom and the lower end cover and fixes and installs walking wheel (10) and wheel carrier (9), closed urceolus (5) bottom is equipped with flowing back gate (8), the conveying inner cylinder (3) is provided with a plurality of filtrate holes, inner cylinder filter cloth (4) is arranged between the inner wall of the conveying inner cylinder and the helical blade (6), and the bottom of the inner cylinder filter cloth (4) is fixed on the lower end cover.

2. The device for cleaning, lifting and dewatering sedimentated coal slime as claimed in claim 1, characterized in that: the inner cylinder filter cloth (4) is a barrel-shaped structure which is supported by a steel bar framework (41) and is provided with a filter cloth (42), and the steel bar framework (41) is fixed on the lower end cover through a pressing strip (43) at the bottom of the steel bar framework by bolts.

3. The device for cleaning, lifting and dewatering sedimentated coal slime as claimed in claim 2, characterized in that: the pore size of the filtering holes on the filtering cloth (42) is 0.15-0.25 mm.

4. The device for cleaning, lifting and dewatering sedimentated coal slime as claimed in claim 1, characterized in that: the lower end of the sealed outer cylinder (5) is also provided with a liquid level meter (7) close to the drainage gate (8), and the installation position of the liquid level meter (7) is 20-30 cm lower than the filtrate hole area of the conveying inner cylinder (3).

5. The device for cleaning, lifting and dewatering sedimentated coal slime as claimed in claim 1, characterized in that: the filtrate hole area of the conveying inner cylinder (3) is located at 1/5-4/5 in the height direction.

6. The device for cleaning, lifting and dewatering sedimentated coal slime as claimed in claim 1, characterized in that: the bottom of the closed outer cylinder (5) is flush with the lower end cover at the bottom of the conveying inner cylinder (3), and the top of the closed outer cylinder (5) is 20-30 cm higher than the filtrate hole area of the conveying inner cylinder (3).