CN220425593U

CN220425593U - Filter screen and fluidized bed dry coal separator

Info

Publication number: CN220425593U
Application number: CN202321415541.1U
Authority: CN
Inventors: 刘卓林; 王光领; 王大庆; 马政英
Original assignee: Xinyi Zhongkuang Qingyuan High End Equipment Co ltd
Current assignee: Xinyi Zhongkuang Qingyuan High End Equipment Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-02-02
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses a filter screen and a fluidized bed dry coal separator, which belong to the technical field of fluidized bed dry coal separation, the filter screen comprises a coal separation mechanism for separating coal blocks, the coal separation mechanism comprises a filter box for separating gangue and clean coal, the filter mechanism comprises a primary filter piece, a secondary filter piece and a vibration motor, the primary filter piece is communicated with the two sides of the filter box, the secondary filter piece is communicated with the upper parts of the two primary filter pieces, the vibration motor is arranged on the two sides of the primary filter piece, the primary filter piece is used for preventing large-particle sundries from entering the filter plates on the primary filter piece and the secondary filter piece to reduce the blockage caused by vibration, the secondary filter piece is used for preventing the clean coal from being carried out by air, and the fan blades are driven by starting the motor to facilitate the clean coal blocked in a dust removing cloth bag and the filter plate to reduce the blockage of the dust removing cloth bag and the filter plate.

Description

Filter screen and fluidized bed dry coal separator

Technical Field

The utility model relates to the field of fluidized bed dry coal dressing, in particular to a filter screen and a fluidized bed dry coal dressing machine.

Background

At present, coal washing and separation mainly adopts traditional coal separation methods such as gravity separation, flotation, magnetic separation and the like, and the traditional coal separation method generally has the advantages of stable yield, high separation precision, mature technical process and the like. But also has the defects of higher energy consumption, lower separation efficiency, larger environmental pollution and the like which are difficult to overcome, especially the gravity separation and the floatation, and has large dependence on water, medium and medicament, and the wastewater generated by separation has large environmental pollution.

In the prior art, waste rock and clean coal are required to be separated through a fan when coal blocks are sorted through a fluidized bed, so that clean coal is taken away through gas blown out by the fan, but large particle impurities on the coal blocks are easy to be taken away by the gas when the coal blocks are blown, the clean coal is mixed with clean coal to affect the treatment and utilization of the clean coal in the later stage, the large particle impurities are required to be intercepted and filtered when the coal blocks are sorted, so that the clean coal is required to be used in the later stage through being convenient, a filtering mechanism is required to filter the impurities except the clean coal, the clean coal which is filtered by the gas is prevented from being taken away, the filter plate is required to be prevented from being blocked, the filter plate is generally required to be manually detached and cleaned or replaced, and the filter plate is required to be stopped for a long time to affect the working efficiency when being replaced. How to invent a filter screen and a fluidized bed dry coal separator to improve the problems becomes a problem to be solved urgently by the person skilled in the art.

Disclosure of Invention

In order to make up the defects, the utility model provides a filter screen and a fluidized bed dry coal separator, which aim to solve the problems that clean coal is taken away by gas blown out by a fan, but large particle impurities on the coal are easily taken away by the gas when the gas blows the coal, so that the clean coal is mixed together to influence the later treatment and utilization of the clean coal, and the filter plate is generally required to be manually disassembled and cleaned or replaced more fussy when being blocked, and the working efficiency is influenced by longer time of shutdown when the clean coal is replaced.

The utility model is realized in the following way: the utility model provides a filter screen, includes the coal preparation mechanism that is used for carrying out the coal preparation to the coal cinder, coal preparation mechanism includes the rose box that sorts gangue and clean coal, still includes filter mechanism.

The filter mechanism comprises a primary filter element, a secondary filter element and a vibration motor, wherein the primary filter element is communicated with the two sides of the filter box, the secondary filter element is communicated with the two sides of the primary filter element, and the vibration motor is arranged on the two sides of the primary filter element.

In a preferred technical scheme of the utility model, the preliminary filtering piece comprises an air outlet box, a first filtering plate and a guide plate, wherein the bottom of the top of the air outlet box and one side of the air outlet box are both provided with openings, the first filtering plate is fixedly arranged at the opening at one side of the air outlet box and is communicated with the inside of the filtering box, and the guide plate is arranged in the air outlet box and is positioned at one side of the first filtering plate.

In a preferred technical scheme of the utility model, the guide plate is arranged in an arc shape and is arranged above one side away from the first filter plate.

In a preferred technical scheme of the utility model, the preliminary filtering piece further comprises a partition plate, a connecting plate and a second filtering plate, wherein the partition plate is fixedly arranged on one side of the inside of the air outlet box, the connecting plate is fixedly connected with the top of the partition plate, the middle part of the connecting plate is hollow, and the second filtering plate is fixedly arranged at the through hole of the connecting plate and corresponds to the opening at the top of the air outlet box.

In a preferred technical scheme of the utility model, the partition plate is fixedly connected with the connecting plate to divide the inside of the air outlet box into two parts, a certain gap is reserved on one side of the partition plate and one side of the air outlet box, and the connection part of the partition plate and the connecting plate is an arc-shaped side, which is far away from the second filter plate.

In a preferred technical scheme of the utility model, the secondary filter comprises an extension box, a fixing frame, a dust removing cloth bag, screws, a transverse plate and a longitudinal plate, wherein the extension box is fixedly arranged at the top opening of the air outlet box, the fixing frame is fixedly arranged in the extension box, two groups of transverse plates and two groups of longitudinal plates are arranged to form a square, the transverse plate and the longitudinal plate are fixedly arranged on the fixing frame through the screws, and the dust removing cloth bag is sleeved among the transverse plate, the transverse plate and the fixing frame.

In a preferred technical scheme of the utility model, the tail part of the screw is fixedly provided with a bearing positioned at the inner ring of the bearing, the inner wall of the fixed frame is provided with a plurality of grooves, the outer ring of the bearing is fixedly arranged in the inner groove of the fixed frame, and the screw and the transverse plate are in threaded connection with the longitudinal plate.

In a preferred technical scheme of the utility model, the top of the extension box is fixedly connected with a mounting frame, the middle part of the mounting frame is provided with a fixing plate, a fan blade is arranged below the fixing plate, and the fan blade is arranged on the fixing plate through the driving of a motor.

In another preferable technical scheme of the utility model, the fluidized bed dry coal separator comprises an auxiliary piece arranged at the bottom of the filter box and used for observing and cleaning the bottom of the filter box.

In a preferred technical scheme of the utility model, the auxiliary piece comprises a transparent frame and a sealing door, two openings are formed in one side of the bottom of the filter box, the transparent frame is fixedly arranged outside one opening on one side of the filter box, and the sealing door is fixed with the other opening on one side of the bottom of the filter box through bolts.

The beneficial effects of the utility model are as follows: according to the filter screen and the fluidized bed dry coal separator which are obtained through the design, when the filter screen and the fluidized bed dry coal separator are used, clean coal passes through the first filter plate and enters the air outlet box to prevent larger impurities from entering and affecting the precision of the clean coal, air enters and is guided by the guide plate to reduce impulse force to blow down to drive the clean coal to flow downwards, the air which is provided with the material collecting bag in a sealing mode at the lower part cannot move upwards and pass through the second filter plate to filter the clean coal to prevent the clean coal from flowing out, and the air is continuously discharged upwards through the dust collecting bag, but more or less clean coal in the dust collecting bag can appear to cause the dust collecting bag to block, the dust collecting bag drives the fan blade to rotate through the motor, so that the clean coal blocked in the dust collecting bag is conveniently cleaned through inertia, and the situation of the dust collecting bag and the filter plate blocking is reduced through the motor is started to drive the fan blade.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of one side of a structure provided by an embodiment of the present utility model;

fig. 2 is a schematic diagram of a bottom view of one side according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional internal structure of a filter box according to an embodiment of the present utility model;

FIG. 4 is a schematic top view of a section of a filter mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a cross-sectional structure of a portion of a filtering mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of an exploded top part of a filtering mechanism according to an embodiment of the present utility model.

In the figure: 100-coal dressing mechanism; 110-a filter box; 120-auxiliary parts; 121-a transparent frame; 122-sealing the door; 200-a filtering mechanism; 210-a preliminary filter; 211-an air outlet box; 212-a first filter plate; 213-guide plates; 214-a separator; 215-connecting plates; 216-a second filter plate; 220-a secondary filter; 221-an extension cassette; 222-fixing a frame; 223-a dust removing cloth bag; 224-screw; 225-a cross plate; 226-a longitudinal plate; 227-a mounting frame; 228-fan blades; 229-a fixing plate; 230-vibration motor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution: a filter screen comprises a coal preparation mechanism 100 for preparing coal from coal blocks, wherein the coal preparation mechanism 100 comprises a filter box 110 for separating gangue from clean coal, and a filter mechanism 200.

Referring to fig. 2, the filtering mechanism 200 includes a primary filtering member 210, a secondary filtering member 220 and a vibration motor 230, wherein the primary filtering member 210 is communicated with two sides of the filtering box 110, the secondary filtering member 220 is communicated with two primary filtering members 210, the vibration motor 230 is arranged at two sides of the primary filtering member 210, the primary filtering member 210 is used for preventing impurities with large particles from entering to reduce the quality of clean coal, the vibration motor 230 vibrates the filtering plates on the primary filtering member 210 and the secondary filtering member 220 to reduce blockage, and the secondary filtering member 220 is used for intercepting the clean coal to prevent the clean coal from being carried out by air.

Referring to fig. 3, 4 and 5, the preliminary filter 210 includes an air outlet box 211, a first filter plate 212 and a guide plate 213, wherein the top bottom and one side of the air outlet box 211 are both provided with openings, the first filter plate 212 is fixedly arranged at the opening of one side of the air outlet box 211 and is communicated with the inside of the filter box 110, the guide plate 213 is arranged inside the air outlet box 211 and is positioned at one side of the first filter plate 212, and the air outlet box 211 is used for intercepting large-particle fried objects by the first filter plate 212 when the air and clean coal are discharged. The guide plate 213 is arranged to be arc-shaped and is far away from the upper side of one side of the first filter plate 212, the guide plate 213 is used for enabling the entering gas to blow downwards to buffer so that the pressure of the gas is reduced to enable the clean coal to fall off, and the bottom of the air outlet box 211 is communicated with a collecting bag or a collecting device for storing the clean coal.

Referring to fig. 3, 4 and 5, the primary filter 210 further includes a partition 214, a connecting plate 215 and a second filter plate 216, where the partition 214 is fixedly installed on one side of the inside of the air outlet box 211, the connecting plate 215 is fixedly connected with the top of the partition 214, the middle of the connecting plate 215 is hollow, the second filter plate 216 is fixedly installed at the through hole of the connecting plate 215 and the opening at the top of the air outlet box 211, the second filter plate 216 is used for intercepting part of clean coal to make gas fall through the clean coal, and the second filter plate 216 is made of cloth or other materials to intercept the clean coal.

The inside of the air outlet box 211 is divided into two parts by the fixed connection of the baffle 214 and the connecting plate 215, a certain gap is reserved on one side of the baffle 214 and one side of the air outlet box 211, and the connecting part of the baffle 214 and the connecting plate 215 is an arc-shaped side, which is far away from the second filter plate 216, and is used for enabling gas to drive clean coal to pass through the second filter plate 216 to be discharged.

Referring to fig. 4, 5 and 6, the secondary filter 220 includes an extension box 221, a fixing frame 222, a dust removing bag 223, screws 224, a transverse plate 225 and a vertical plate 226, the extension box 221 is fixedly installed at the top opening of the air outlet box 211, the fixing frame 222 is fixedly installed inside the extension box 221, the transverse plate 225 and the vertical plate 226 are provided with two groups and two groups to form a square, the transverse plate 225 and the vertical plate 226 are fixedly installed on the fixing frame 222 through the screws 224, the dust removing bag 223 is sleeved between the transverse plate 225, the transverse plate 225 and the fixing frame 222, the dust removing bag 223 is placed in the fixing frame 222, and the adjusting screws 224 enable the transverse plate 225 and the vertical plate 226 to be close to the inner wall of the fixing frame 222 to fix the dust removing bag 223 on the fixing frame 222 for intercepting clean coal so that the air is discharged from the other side of the partition plate 214 to the storage bag or the storage device below.

The afterbody fixed mounting of screw 224 has the bearing to be located the inner circle of bearing, and a plurality of recesses have been seted up to the inner wall of fixed frame 222, and the outer lane fixed mounting of bearing is in the inside recess of fixed frame 222, and screw 224 and diaphragm 225 are in the connection of indulge 226 screw thread, and screw 224 can not go deep into fixed frame 222 and diaphragm 225 and indulge 226 and carry out screw thread drive with diaphragm 225 and indulge 226 and drive diaphragm 226 and be close to fixed frame 222 and press from both sides tight fixedly to dust removal sack 223 when rotating screw 224. The top fixedly connected with installing frame 227 of extension box 221, the middle part of installing frame 227 is provided with fixed plate 229, and the below of fixed plate 229 is provided with flabellum 228, and flabellum 228 passes through the motor drive and installs in fixed plate 229, opens the motor and drives flabellum 228 and blow downwards or upwards suddenly when dust removal sack 223 blocks up and make dust removal sack 223 shake off the clean coal of inside jam through inertia, and the clean coal that drops passes through.

Referring to fig. 2, a fluidized bed dry coal separator includes an auxiliary member 120 provided at the bottom of a filter tank 110, the auxiliary member 120 being used for observing and cleaning the bottom of the filter tank 110. The auxiliary member 120 comprises a transparent frame 121 and a sealing door 122, two openings are formed in one side of the bottom of the filter box 110, the transparent frame 121 is fixedly arranged outside one opening of one side of the filter box 110, the sealing door 122 is fixedly arranged on the other opening of one side of the bottom of the filter box 110 through bolts, and the condition that the transparent frame 121 penetrates through the internal fan is found that the sealing door 122 is opened slowly after the air outlet is partially damaged to maintain the internal fan.

Working principle: when coal is put into the filter box 110 for coal dressing, the top is sealed, the bottom fan is started to blow for coal dressing, clean coal passes through the first filter plate 212 to enter the air outlet box 211, the impact force of reducing gas is guided by the guide plate 213 to drive the clean coal to rise downwards, clean coal falling gas is enabled to rise downwards when the pressure of the clean coal is smaller because of heavier gas, the collecting device is arranged below the air outlet box 211, clean coal falls into the collecting device, the gas upwards moves to pass through the second filter plate 216 to filter the clean coal to prevent the clean coal from escaping, the gas continues to be discharged upwards through the dust removing cloth bag 223, but the clean coal is more or less blocked in the dust removing cloth bag 223, and the dust removing cloth bag 223 is enabled to clear the blocked clean coal through inertia by starting the motor to drive the fan blade 228 to rotate.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a filter screen, its characterized in that includes the coal preparation mechanism that is used for carrying out the coal preparation to the coal cinder, coal preparation mechanism includes the rose box that sorts gangue and clean coal, still includes

The filtering mechanism comprises a primary filtering piece, a secondary filtering piece and a vibration motor, wherein the primary filtering piece is communicated with the two sides of the filtering box, the secondary filtering piece is communicated with the two sides of the primary filtering piece, and the vibration motor is arranged on the two sides of the primary filtering piece.

2. A filter screen as recited in claim 1, wherein: the preliminary filtering piece comprises an air outlet box, a first filtering plate and a guide plate, wherein the top bottom and one side of the air outlet box are both provided with openings, the first filtering plate is fixedly arranged at the opening of one side of the air outlet box and is communicated with the inside of the filtering box, and the guide plate is arranged inside the air outlet box and is positioned at one side of the first filtering plate.

3. A filter screen as claimed in claim 2, wherein: the guide plate is arranged above one side of the arc-shaped body far away from the first filter plate.

4. A filter screen as claimed in claim 2, wherein: the preliminary filter piece still includes baffle, connecting plate and second filter, baffle fixed mounting in one side of the inside of case of giving vent to anger, the connecting plate with the top fixed connection of baffle, the middle part of connecting plate is the cavity setting, second filter fixed mounting in the through-hole department of connecting plate with the opening at case top corresponds the setting.

5. A filter screen as recited in claim 4, wherein: the baffle with connecting plate fixed connection is with the inside two parts that divide into of case that gives vent to anger just the baffle with give vent to anger case one side and remain certain space, the baffle with the junction of connecting plate sets up the arc for the arc and keeps away from one side of second filter.

6. A filter screen as recited in claim 5, wherein: the secondary filter piece is including extending box, fixed frame, dust removal sack, screw, diaphragm and indulge the board, extend box fixed mounting in the open top department of air-out case, fixed frame fixed mounting in extend the inside of box, the diaphragm with indulge the board and be provided with two sets of and two sets of square of enclosing, the diaphragm with indulge the board pass through screw fixed mounting in fixed frame, dust removal sack cup joint set up in between diaphragm, diaphragm and the fixed frame.

7. A filter screen as recited in claim 6, wherein: the tail of the screw is fixedly provided with a bearing which is positioned on the inner ring of the bearing, the inner wall of the fixed frame is provided with a plurality of grooves, the outer ring of the bearing is fixedly arranged in the inner groove of the fixed frame, and the screw and the transverse plate are in threaded connection with the longitudinal plate.

8. A filter screen as recited in claim 6, wherein: the top fixedly connected with installing frame of extension box, the middle part of installing frame is provided with the fixed plate, the below of fixed plate is provided with the flabellum, the flabellum pass through the motor drive install in the fixed plate.

9. A fluidized bed dry separator for coal, comprising a filter screen according to any one of claims 1 to 8, characterized in that: the bottom of rose box is provided with the auxiliary member, the auxiliary member is used for observing and clearance the bottom of rose box.

10. A fluidized bed dry coal separator as set forth in claim 9, wherein: the auxiliary piece comprises a transparent frame and a sealing door, two openings are formed in one side of the bottom of the filter box, the transparent frame is fixedly installed outside one opening on one side of the filter box, and the sealing door is fixed on the other opening on one side of the bottom of the filter box through bolts.