CN213335310U

CN213335310U - Clean coal dehydration structure for coal preparation plant

Info

Publication number: CN213335310U
Application number: CN202022184997.4U
Authority: CN
Inventors: 周应林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-01
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a clean coal dehydration structure for a coal preparation plant, which discloses a clean coal dehydration structure which can sieve clean coal through a screening structure of a plurality of layers of screen meshes and is matched with a heating fan to deeply dehydrate and dry the clean coal, it is characterized in that a plurality of supporting feet are arranged at the bottom of the dewatering box, the coal outlet pipe is arranged at the bottom of the dewatering box, and is communicated with the inside of the dewatering box, the coal inlet pipe is arranged on the outer side wall of the dewatering box and is close to the top of the dewatering box, the coal inlet pipe is communicated with the inside of the dewatering box, the moisture absorption pipe is arranged on the coal inlet pipe, and is communicated with the coal inlet pipe, the mouth part of the moisture absorption pipe is provided with an exhaust fan, the moisture extraction pipe is arranged on the outer side wall of the dehydration box, an exhaust fan is arranged at the opening part of the moisture extraction pipe, at least two heating fans are arranged at the top part of the dehydration box, the air outlet of the heating fan is communicated with the inside of the dewatering box, and the placing platform is arranged at the top of the dewatering box.

Description

Clean coal dehydration structure for coal preparation plant

Technical Field

The utility model relates to a clean coal dehydration structure for coal preparation plant relates to one kind and is arranged in the coal preparation plant, carries out the structure of dehydration to the clean coal, belongs to the coal mine equipment field. In particular to a clean coal dehydration structure which can sieve clean coal through a screening structure of a plurality of layers of screen meshes and is matched with a heating fan to deeply dehydrate and dry the clean coal.

Background

At present, the cleaned coal that obtains with wet process coal washing, contain moisture in the cleaned coal, for follow-up technology, carry out dehydration to the cleaned coal, current dehydration method is electric heat stoving usually, utilize the screen cloth to carry out the sieve simultaneously and move in order to accelerate the stoving process, hot-blast cleaned coal that blows makes the cleaned coal dry, but at the in-process of drying, because contain moisture in the cleaned coal, some cleaned coal conglobation gathering has increaseed the dry degree of difficulty, current drying structure can only be dried the cleaned coal surface, to this kind of conglobation's coal cinder, it is comparatively difficult to dry, so be difficult to ensure inside thorough drying of cleaned coal, greatly influence follow-up technology.

Publication No. CN201182934 discloses a netted coal slime dehydration sieve of skeleton, and it is by hexagonal hole stainless steel grid makes the bracket, bonds on the bracket and has the double-deck stainless steel screen cloth that comprises bottom layer support net and upper screen cloth, requires that the aperture of upper screen cloth is 0.5mm, and the silk footpath is 0.22mm, and the device sieve moves the cleaned coal, only can absorb water to the cleaned coal surface, can not deep drying.

Notice No. CN209333346U discloses a coal flow dewatering device, including device main part, centrifugal dehydrator and sedimentation tank, the both sides on device main part top are provided with the screen cloth through spring and first supporting block, the bottom of screen cloth is provided with vibrating motor, the inside sedimentation tank that is provided with of device main part of screen cloth bottom, the lateral wall of device main part is provided with the medicine-placing box, the bottom of sedimentation tank is provided with centrifugal dehydrator, and the device only has the one deck screen cloth, can not thoroughly dewater the cleaned coal.

Disclosure of Invention

In order to improve the condition, the utility model relates to a clean coal dehydration structure for coal preparation plant provides one kind and sieves the clean coal through the screening structure of multilayer screen cloth, and cooperation heating fan for clean coal degree of depth dehydration stoving's clean coal dehydration structure.

The utility model relates to a clean coal dehydration structure for coal preparation plant is realized like this: the utility model relates to a clean coal dehydration structure for coal preparation plant comprises a coal inlet pipe, a moisture absorption pipe, a heating fan, a driving motor, a moisture extraction pipe, a coal outlet pipe, supporting legs, a dehydration box, an edge side sieve plate, an exhaust fan, a bearing, a center rod, a placing platform, a center sieve plate, sieve meshes and a shaft sleeve, wherein a plurality of supporting legs are arranged at the bottom of the dehydration box, the coal outlet pipe is arranged at the bottom of the dehydration box and communicated with the inside of the dehydration box, the coal inlet pipe is arranged on the outer side wall of the dehydration box and close to the top of the dehydration box, the coal inlet pipe is communicated with the inside of the dehydration box, the moisture absorption pipe is arranged on the coal inlet pipe and communicated with the coal inlet pipe, the mouth part of the moisture absorption pipe is provided with the exhaust fan, the moisture extraction pipe is arranged on the outer side wall of the dehydration box, the mouth part of the moisture extraction pipe is provided with the exhaust fan, at least two heating fans are arranged, the placing platform is arranged on the top of the dewatering box, the driving motor is arranged on the placing platform, the motor shaft of the driving motor extends towards the top of the dewatering box, the central rod is arranged in the dewatering box, one end of the central rod is arranged at the bottom of the dewatering box through a bearing, the other end of the central rod penetrates through the top of the dewatering box, and is connected with a motor shaft of a driving motor, a plurality of central sieve plates are equidistantly arranged on the central rod through shaft sleeves, a plurality of sieve pores are arranged on the central sieve plate, a plurality of side sieve plates are equidistantly arranged on the inner side wall of the dewatering box, the side sieve plate is provided with a plurality of sieve pores and is an annular plate, the side sieve plate and the central sieve plate are arranged at intervals, the opening rate of the sieve pores is between 50% and 70%, the central sieve plate is provided with a water-absorbing sponge, the side sieve plates are provided with water-absorbing sponges, and the central sieve plate is provided with a plurality of spherical bulges.

Has the beneficial effects.

The structure is simple, and the device is convenient and practical.

Secondly, the cost is low, and the popularization is convenient.

And thirdly, fine coal can be sieved through a plurality of layers of screens, and the wet agglomerated fine coal is broken up and separated, so that the drying is carried out.

Fourthly, the clean coal can be completely dried through hot gas circulation.

Drawings

FIG. 1 is a three-dimensional structure diagram of a clean coal dewatering structure for a coal preparation plant.

Fig. 2 is a schematic structural view of a clean coal dewatering structure for a coal preparation plant.

Fig. 3 the utility model relates to a coal preparation mill is with the structural sketch of clean coal dehydration structure sieve.

In the attached drawings

Wherein the method comprises the following steps: advance coal pipe 1, moisture absorption pipe 2, heating blower 3, driving motor 4, take out wet pipe 5, play coal pipe 6, supporting legs 7, dewatering box 8, avris sieve 9, air exhauster 10, bearing 11, well core rod 12, place the platform 13, central sieve 14, sieve mesh 15, axle sleeve 16.

The specific implementation mode is as follows:

the utility model relates to a clean coal dehydration structure for coal preparation plant is realized like this: the utility model relates to a clean coal dehydration structure for coal preparation plant comprises a coal inlet pipe 1, a moisture absorption pipe 2, a heating fan 3, a driving motor 4, a dehumidifying pipe 5, a coal outlet pipe 6, supporting legs 7, a dehydration box 8, an edge side sieve plate 9, an exhaust fan 10, a bearing 11, a central rod 12, a placing platform 13, a central sieve plate 14, sieve pores 15 and a shaft sleeve 16, wherein a plurality of supporting legs 7 are arranged at the bottom of the dehydration box 8, the coal outlet pipe 6 is arranged at the bottom of the dehydration box 8 and communicated with the inside of the dehydration box 8, the coal inlet pipe 1 is arranged on the outer side wall of the dehydration box 8 and close to the top of the dehydration box 8, the coal inlet pipe 1 is communicated with the inside of the dehydration box 8, the moisture absorption pipe 2 is arranged on the coal inlet pipe 1 and communicated with the coal inlet pipe 1, the mouth part of the moisture absorption pipe 2 is provided with the exhaust fan 10, the moisture absorption pipe 5 is arranged on the outer side wall of the dehydration box 8, the mouth, the top of dehydration box 8 is arranged in to two at least heating fan 3, the venthole of heating fan 3 and the inside of dehydration box 8 are linked together, place the top of dehydration box 8 is arranged in to place the platform 13, place the platform 13 in to place driving motor 4, the motor shaft of driving motor 4 extends to the direction at dehydration box 8 top, well core rod 12 is arranged in dehydration box 8, the bottom of dehydration box 8 is arranged in through bearing 11 to well core rod 12's one end, well core rod 12's the other end passes the top of dehydration box 8, and is connected with driving motor 4's motor shaft, and a plurality of center sieve boards 14 are arranged on well core rod 12 through axle sleeve 16 equidistance, it has a plurality of sieve meshes 15 to open on well core sieve 14, and a plurality of avris sieve boards 9 equidistance are arranged on the inside wall of dehydration box 8, it has a plurality of sieve meshes 15 to open on avris sieve board 9, sieve board 9 is the annular board, the aperture ratio of the sieve pore 15 is between 50% and 70%, the center sieve plate 14 is provided with water-absorbing sponge, the side sieve plate 9 is provided with water-absorbing sponge, and the center sieve plate 14 is provided with a plurality of spherical bulges.

When the drying device is used, clean coal is firstly added into a dewatering box 8 through a coal inlet pipe 1, meanwhile, an exhaust fan 10, a heating fan 3 and a driving motor 4 are started, moist air in the dewatering box 8 is extracted by the exhaust fan 10, hot air is sent into the dewatering box 8 by the heating fan 3, the heating fan 3 is matched with the exhaust fan 10, internal circulation is formed in the dewatering box 8, so that the moist air in the dewatering box 8 flows out along with the air of the internal circulation, the clean coal is comprehensively dried through hot air circulation, in the process of the internal circulation, a motor shaft of the driving motor 4 drives a central rod 12 to rotate, a central sieve plate 14 rotates, so that the wet and clustered clean coal is scattered and separated, the clean coal leaks from sieve holes 15, the clean coal is sieved by matching of multiple layers of sieves, the wet and clustered clean coal is scattered and separated, and after the drying is finished, taking out the dried clean coal through a coal outlet pipe 6;

the design that the side sieve plates 9 and the central sieve plates 14 are arranged at intervals enables the side sieve plates 9 and the central sieve plates 14 to be matched to form a multi-layer screening structure, when the central sieve plates 14 rotate, clean coal leaks to the side sieve plates 9 of the next layer from the sieve holes 15 on the central sieve plates 14, then the clean coal is driven to move by matching with the central sieve plates 14, the clean coal leaks to the central sieve plates 14 of the next layer from the sieve holes 15 on the side sieve plates 9, so that the clean coal is subjected to multi-layer treatment, the wet and agglomerated coal mine is subjected to multi-layer scattering, and omission is avoided;

the design that the opening rate of the sieve holes 15 is 50% to 70% has the advantages that on one hand, the opening rate is too low, so that the efficiency of breaking up and separating clean coal is too low, and on the other hand, the opening rate is too high, so that the omission of the clean coal is easily caused;

the central sieve plate 14 is provided with water-absorbing sponge, and the side sieve plates 9 are provided with water-absorbing sponge, so that the wet clean coal can be absorbed when the central sieve plate 14 rotates, and the central sieve plate 14 is assisted to break up and separate the wet and agglomerated clean coal;

the central sieve plate 14 is provided with a plurality of spherical bulges, so that on one hand, the contact area between the clean coal and the central sieve plate 14 can be increased, the clean coal is further scattered and separated by the spherical bulges, and on the other hand, the spherical bulges perform point contact on the clean coal, so that the abrasion of sliding friction on the clean coal is reduced, and the damage to the clean coal is avoided;

the clean coal is sieved by matching the multiple layers of screen meshes, so that the wet agglomerated clean coal is broken up and separated, and meanwhile, the clean coal is comprehensively dried through hot air circulation.

It should be noted that, unless otherwise specifically stated or limited, the terms "disposed on," "mounted," "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection such as a crimped connection, a riveted connection, a pinned connection, an adhesive connection, a welded connection, a detachable connection such as a threaded connection, a snap connection, a hinged connection, an integral connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a clean coal dehydration structure for coal preparation plant which characterized by: comprises a coal inlet pipe, a moisture absorption pipe, a heating fan, a driving motor, a moisture absorption pipe, a coal outlet pipe, supporting legs, a dewatering box, an edge side sieve plate, an exhaust fan, a bearing, a central rod, a placing platform, a central sieve plate, sieve pores and a shaft sleeve, wherein the plurality of supporting legs are arranged at the bottom of the dewatering box, the coal outlet pipe is arranged at the bottom of the dewatering box and communicated with the inside of the dewatering box, the coal inlet pipe is arranged on the outer side wall of the dewatering box and close to the top of the dewatering box, the coal inlet pipe is communicated with the inside of the dewatering box, the moisture absorption pipe is arranged on the coal inlet pipe and communicated with the coal inlet pipe, the exhaust fan is arranged at the mouth of the moisture absorption pipe, the moisture absorption pipe is arranged on the outer side wall of the dewatering box, the air outlet hole of the heating fan is communicated with the inside of the dewatering box, the placing platform is arranged at the top of the dewatering box, the driving, well core rod is arranged in the drain sump, well core rod's one end is passed through the bearing and is arranged in the bottom of drain sump, well core rod's the other end passes the top of drain sump, and is connected with driving motor's motor shaft, and a plurality of center sieves are arranged in well core rod through the axle sleeve equidistance on, and a plurality of avris sieve equidistance are arranged in on the inside wall of drain sump, it has a plurality of sieve meshes to open on the avris sieve.

2. The clean coal dewatering structure for a coal preparation plant according to claim 1, wherein an exhaust fan is disposed at an opening of the moisture extraction pipe, and at least two heating fans are disposed at a top of the dewatering box.

3. The clean coal dewatering structure for a coal preparation plant according to claim 1, wherein the central screen deck has a plurality of screen openings formed therein.

4. The clean coal dewatering structure for a coal preparation plant according to claim 1, characterized in that the side screen deck is an annular plate.

5. The clean coal dewatering structure for a coal preparation plant according to claim 4, wherein the side screen deck and the center screen deck are arranged at intervals.

6. The clean coal dewatering structure for a coal preparation plant according to claim 3, wherein the opening rate of the screen holes is between 50% and 70%.

7. The clean coal dewatering structure for a coal preparation plant of claim 3, wherein a water absorbing sponge is placed on the central screen deck.

8. The clean coal dewatering structure for a coal preparation plant according to claim 4 or 5, characterized in that a water-absorbing sponge is placed on the side screen plate.

9. The clean coal dewatering structure for a coal preparation plant of claim 7, wherein a plurality of spherical protrusions are disposed on the central screen deck.