CN210787725U

CN210787725U - Coarse slime sorting equipment

Info

Publication number: CN210787725U
Application number: CN201921147574.6U
Authority: CN
Inventors: 梁宇; 王亚伟; 武建光; 张宏兵; 安利军; 刘国超; 王学明; 杜爱军; 李文儒
Original assignee: XISHAN COAL ELECTRICITY GROUP CO Ltd
Current assignee: XISHAN COAL ELECTRICITY GROUP CO Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-06-19
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to a coarse coal mud sorting unit specifically is coarse coal mud sorting facilities. The problem of current use TBS as the defect and the problem that exist of coarse coal mud sorting facilities of basis is solved. Coarse coal slime sorting facilities includes the TBS, and the overflow mouth of TBS is continuous with the tripper through the pipeline, and the tripper links to each other with the feed box that is located electromagnetic type high frequency vibration sieve top, and the oversize discharge position of electromagnetic type high frequency vibration sieve has accepted the unloading chute, and the export of unloading chute and coal slime centrifuge's entry linkage, the undersize of electromagnetic type high frequency vibration sieve is provided with the basin. The utility model discloses a TBS and electromagnetic type high-frequency vibration sieve's combination has overcome prior art's not enough, and low in investment, system are simple, the energy consumption is showing and is reducing, the production management of being convenient for, and power consumption reduces 70%, is to the coarse coal mud sorting facilities technical innovation and the breakthrough that the TBS is basic.

Description

Coarse slime sorting equipment

Technical Field

The utility model relates to a coarse coal mud sorting unit specifically is coarse coal mud sorting facilities.

Background

In the coal separation industry of China, particularly in the field of coking coal separation, along with the maturity and popularization of the heavy-medium separation technology of the three-product full-heavy-medium cyclone, the heavy-medium separation of coarse coal slime brings a series of problems for coal separation production, and cannot be well solved for a long time. In recent years, a disturbed Bed Separator (TBS) capable of effectively supplementing the process shortage is widely used, and the separation particle size interval is between the separation lower limit of a dense medium cyclone and the separation upper limit (1.25-0.25 mm) of a flotation device. TBS overflow, i.e. clean coal products, can meet the quality standard requirement of 10-12% of water by further dehydration. TBS-based coarse coal slime separation equipment adopted in various coal preparation plants at present collects TBS overflow, feeds the TBS overflow into a TBS product barrel (or tank), pumps the TBS overflow into a concentration cyclone for concentration by a slurry pump, feeds the TBS overflow into a coal slime centrifugal machine for terminal dehydration after the TBS overflow is pre-dehydrated by a matched arc screen to form a product, and feeds the centrifuge overflow into a flotation system. The device has the following disadvantages: 1. the system is complex, and the initial investment cost is high; 2. the later maintenance cost and the electric energy consumption are high; 3. TBS product bucket (or pond) need reliable liquid level and concentration stable system, otherwise easily lead to concentrated swirler operating mode unstable, and concentration efficiency is poor. 4. The sieve bend is worn and decreased fast, dewatering effect before wearing is not good, the material concentration of centrifuge is low, after the sieve bend is used for a period of time, the sieve gap is widened, the water running is serious, and the product recovery effect is poor. 5. A large amount of qualified clean coal enters a flotation system, and the flotation pressure is increased.

Disclosure of Invention

The utility model provides an above-mentioned defect and the problem that present coarse coal mud sorting equipment that uses TBS as the basis exists provides a coarse coal mud sorting equipment, and this equipment uses TBS as the basis, through the improvement to TBS overflow dehydration structure to overcome the defect and the problem that prior art exists.

The utility model discloses an adopt following technical scheme to realize: coarse coal slime sorting facilities, including the TBS, the overflow mouth of TBS links to each other with the tripper through the pipeline, the tripper links to each other with the feed box of electromagnetic type high frequency vibration sieve (the feed box is that the electromagnetic type high frequency vibration sieve product is from taking, only couples together the pan feeding pipe of the feed box of tripper and electromagnetic type high frequency vibration sieve), the oversize thing discharge position of electromagnetic type high frequency vibration sieve has accepted the unloading chute, the export of unloading chute and coal slime centrifuge's entry linkage, the undersize of electromagnetic type high frequency vibration sieve is provided with the basin. When the device works, the overflow of the TBS is fed into a distributor through a pipeline (the underflow of the TBS enters a middling product after being dehydrated by dehydration equipment), and then is uniformly distributed on the screen surface of the electromagnetic high-frequency vibrating screen through a feeding box, oversize products of the electromagnetic high-frequency vibrating screen are fed into a coal slime centrifugal machine through a discharging chute, fine coal products are obtained after the coal slime centrifugal machine is dehydrated, and undersize products in an undersize water tank of the electromagnetic high-frequency vibrating screen enter a tailing treatment process link or a flotation process link of the next stage.

The electromagnetic high-frequency vibrating screen is a high-efficiency screen surface vibrating screening machine with a brand new structure, a vibration exciter drives a screen surface to vibrate in a high frequency mode through electromagnetism, a screen box is static, a vibration system is designed to work in a resonance state, the vibration frequency of the screen surface is 50Hz, the amplitude is 1-5 mm, the vibration intensity is 8-10 times of the gravity acceleration and 2-3 times of the vibration intensity of a common mechanical vibrating screen, the screen surface is not easy to block holes, the screening efficiency is high, the processing capacity is high, the electromagnetic high-frequency vibrating screen is particularly suitable for screening fine powder materials, the angle of the screening machine is convenient to adjust, the vibration parameters of the screening machine are adjusted and controlled by a computer, the vibration parameters of each vibrator can be independently adjusted and set, and the power consumption of the. Through the selection of the mesh number of the screen meshes, the concentration of oversize materials of the electromagnetic high-frequency vibrating screen can be matched with the feed concentration of the coal slime centrifuge to a higher degree.

The utility model discloses a TBS and electromagnetic type high-frequency vibration sieve's combination has overcome prior art's not enough, and low in investment, system are simple, the energy consumption is showing and is reducing, the production management of being convenient for, and power consumption reduces 70%, is to the coarse coal mud sorting facilities technical innovation and the breakthrough that the TBS is basic.

Drawings

FIG. 1 is the coarse coal slime separation equipment's structure schematic diagram.

In the figure: the method comprises the following steps of 1-TBS, 2-distributor, 3-feeding box, 4-electromagnetic high-frequency vibrating screen, 5-water tank, 6-blanking chute and 7-coal slime centrifuge.

Detailed Description

Coarse coal slime sorting facilities, including TBS1, TBS 1's overflow mouth is continuous with tripper 2 through the pipeline, and tripper 2 links to each other with electromagnetic type high frequency vibration sieve 4's feed box 3, and electromagnetic type high frequency vibration sieve 4's oversize discharge position is accepted unloading chute 6, and the export of unloading chute 6 and coal slime centrifuge 7's entry linkage, the undersize of electromagnetic type high frequency vibration sieve 4 is provided with basin 6. The distributor 2 comprises a plurality of conveying pipes, one end of each conveying pipe is communicated with each other, an overflow port of the TBS1 is connected with one end of each conveying pipe communicated with each other through a pipeline, the other end of each conveying pipe is provided with a control valve respectively to realize the control of the distributor 2, and one end of each conveying pipe provided with the control valve is connected with the feeding box 3. The material conveying pipes of the distributor 2 have different pipe diameters, and the distribution magnitude is allocated according to the requirement. Each material conveying pipe of the distributor 2 corresponds to an electromagnetic type high-frequency vibrating screen 4.

Claims

1. The utility model provides a coarse coal slime sorting facilities, including TBS (1), a serial communication port, the overflow mouth of TBS (1) is continuous with tripper (2) through the pipeline, tripper (2) link to each other with feed box (3) of electromagnetic type high frequency vibration sieve (4), the oversize thing discharge position of electromagnetic type high frequency vibration sieve (4) is accepted unloading chute (6), the export of unloading chute (6) and the entry linkage of coal slime centrifuge (7), the undersize of electromagnetic type high frequency vibration sieve (4) is provided with basin (5).

2. Coarse coal slime separating equipment according to claim 1, characterized in that the distributor (2) comprises a plurality of feed pipes, one end of each feed pipe is connected with each other, the overflow port of the TBS (1) is connected with one end of each feed pipe through a pipeline, the other end of each feed pipe is provided with a control valve, and one end of each feed pipe provided with a control valve is connected with the feeding box (3).

3. Coarse coal slime sorting equipment according to claim 2, characterized in that the multiple feed pipes of the distributor (2) have different pipe diameters.

4. Coarse coal slime separating equipment according to claim 3, characterized in that each material conveying pipe of the distributor (2) corresponds to one electromagnetic high-frequency vibrating screen (4).