CN113000365A - Coal vibration screening device - Google Patents
Coal vibration screening device Download PDFInfo
- Publication number
- CN113000365A CN113000365A CN202110217452.5A CN202110217452A CN113000365A CN 113000365 A CN113000365 A CN 113000365A CN 202110217452 A CN202110217452 A CN 202110217452A CN 113000365 A CN113000365 A CN 113000365A
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- Prior art keywords
- filter
- coal
- sliding
- box
- screening
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/282—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
- B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a coal vibration screening device, and belongs to the field of coal sorting equipment. It includes: the device comprises a box body and a first screening mechanism, wherein a feed inlet is formed in the upper wall of the box body, and a discharge outlet is formed in the side wall of the box body; the first screening mechanism includes: the first filter box is positioned at the lower side of the feed inlet, a plurality of filter holes are formed in the lower side wall of the first filter box, and a sliding part is arranged on the outer side of the first filter box; the sliding rail is positioned on the lower side of the first filter box and matched with the sliding part, and a plurality of bulges are arranged on the sliding rail; and the driving device drives the first filter box to enable the sliding part to move back and forth along the sliding rail. The invention solves the problem that the vibration force of the part of the existing coal vibration screening device far away from the motor is weak, so that the material is blocked.
Description
Technical Field
The invention relates to the technical field of coal sorting equipment, in particular to a multistage screening device for coal screening and processing.
Background
The screening device for coal distinguishes the size of coal, so that people can conveniently process the coal, and the screening device belongs to one of common devices in the coal industry. The existing screening device for coal usually adopts vibration screening, and fine coal on the screen is vibrated and falls through vibration, but because the screening device is longer, the coverage area taking the vibration motor as a vibration source is smaller, the farther distance vibration force from the vibration motor is weaker, and finally, the farther material from the motor cannot fall down, so that the phenomenon of blockage is generated, and urgent improvement is needed.
Disclosure of Invention
The invention provides a coal vibration screening device with uniform vibration force, aiming at solving the technical problem that the vibration force of the part of the existing coal vibration screening device far away from a motor is weak to cause material blockage.
In order to solve the technical problems, the invention provides the following technical scheme:
a coal vibratory screening device, comprising: the device comprises a box body and a first screening mechanism, wherein a feed inlet is formed in the upper wall of the box body, and a discharge outlet is formed in the side wall of the box body; the first screening mechanism includes: the first filter box is positioned at the lower side of the feed inlet, a plurality of filter holes are formed in the lower side wall of the first filter box, and a sliding part is arranged on the outer side of the first filter box; the sliding rail is positioned on the lower side of the first filter box and matched with the sliding part, and a plurality of bulges are arranged on the sliding rail; and the driving device drives the first filter box to enable the sliding part to move back and forth along the sliding rail.
In some embodiments of the invention, the driving device comprises a pneumatic driving device, the pneumatic driving device comprises a pneumatic cylinder installed outside the box body, and a piston rod of the pneumatic cylinder is used for driving the first filter cartridge.
In some embodiments of the present invention, the driving device further includes a first return elastic member located between the first filter cassette and the box, and an elastic force of the first return elastic member is used to push the first filter cassette to move toward a direction approaching the piston rod.
In some embodiments of the present invention, a sleeve is disposed on an inner side wall of the box, a sliding insertion rod is slidably connected in the sleeve, a second elastic resetting member is disposed inside the sleeve, an elastic force of the second elastic resetting member is used for enabling the sliding insertion rod to abut against an outer side wall of the first filter cartridge, and the first elastic resetting member is sleeved on the sleeve and the sliding insertion rod.
In some embodiments of the present invention, the apparatus further includes a control mechanism for controlling the start and stop of the first screening mechanism, and the control mechanism includes: the control switch is used for controlling the starting and stopping of the pneumatic cylinder; the end part of the push rod is used for triggering the control switch; the fixed plate is fixedly connected to the outer side of the box body, and the push rod is connected to the fixed plate in a sliding mode; the first cam is driven by the first driving motor to rotate and push the push rod to slide along the fixing plate.
In some embodiments of the present invention, a sliding hole is formed in the fixed plate, the push rod is slidably connected to the sliding hole, a movable plate is connected to an end portion of the push rod on a side away from the control switch, and an elastic damping member is disposed between the movable plate and the fixed plate.
In some embodiments of the present invention, at least two layers of the first screening mechanisms are disposed in the box, and a flow guiding member is disposed between the upper layer of the first screening mechanism and the lower layer of the first screening mechanism, and is configured to guide coal filtered by the upper layer of the first filter cartridge into the lower layer of the first filter cartridge.
In some embodiments of the invention, the first sifting mechanism of several layers is controlled by the same control mechanism.
In some embodiments of the present invention, the apparatus further comprises a second screening mechanism, the second screening mechanism is located below the first screening mechanism, and the second screening mechanism comprises: the filter plate is connected to the side wall of the box body 10 in a sliding mode; and the second cam is used for supporting the filter plate, and is driven by a second driving motor to rotate and drive the filter plate to vibrate up and down.
In some embodiments of the invention, the discharge ports include a first discharge port and a second discharge port, the first discharge port is located on the side wall of the upper side of the filter plate, and the second discharge port is located on the lower side of the filter plate and close to the bottom wall of the box body.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
in the coal vibrating screening device provided by the invention, the first filter box is used for filtering the coal blocks entering from the feeding hole, and the first filter box is provided with the sliding part capable of sliding on the sliding rail, the sliding rail is provided with the plurality of bulges, the first filter box can reciprocate on the sliding rail along with the driving device, and the sliding part and the bulges are matched to generate the vibration of the first filter box, so that the coal blocks are filtered by the first filter box to be divided into the coal blocks with larger blocks positioned at the upper side of the first filter box and the coal blocks with smaller blocks passing through the filter holes of the first filter box. Because first screening mechanism makes the vibration volume that is located each position department of first filter cartridge keep unanimous, and the vibrational force is great, and the material falls easily, avoids current vibration screening mechanism to keep away from the less problem that leads to blockking up the filter cartridge of vibration volume of actuating mechanism end.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a front view of one embodiment of a coal vibratory screening apparatus of the present invention;
FIG. 2 is a top view of one embodiment of the coal vibratory screening apparatus of the present invention;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is a schematic structural view of a first filter cassette of the coal vibrating screen apparatus according to an embodiment of the present invention;
FIG. 6 is an enlarged view of portion D of FIG. 5;
FIG. 7 is a schematic structural view of one embodiment of a push plate in the coal vibrating screen apparatus of the present invention;
FIG. 8 is a schematic structural view of a slide rail in the coal vibrating screen apparatus according to an embodiment of the present invention;
fig. 9 is an enlarged view of a portion a of fig. 2.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The following is a specific embodiment of the coal vibrating screen device provided by the present invention, as shown in fig. 1 to 3, which includes: the device comprises a box body 10 and a first screening mechanism, wherein a feeding hole 101 is formed in the upper wall of the box body 10, and a discharging hole 102 is formed in the side wall of the box body 10; the first screening mechanism includes: the first filter box 201 is positioned on the lower side of the feed inlet 101, the lower side wall of the first filter box 201 is provided with a plurality of filter holes, and the outer side of the first filter box 201 is provided with a sliding part; the sliding part is connected to the sliding rail 202 in a sliding manner, and a plurality of protrusions 202a are arranged on the sliding rail 202; and a driving device for driving the first filter cassette 201 to move, wherein the driving device is used for driving the sliding part to move back and forth along the sliding rail 202.
In the coal vibrating screening device, the first filter box 201 is used for filtering materials entering from the feeding hole 101, such as coal briquettes with different sizes; because first filter cartridge 201 sets up the gliding sliding part in slide rail 202, and set up a plurality of archs 202a on the slide rail 202, first filter cartridge 201 then can be along with drive arrangement reciprocating motion on slide rail 202, the sliding part produces the vibration of first filter cartridge 201 with protruding 202a cooperation, makes the coal cinder filter the coal cinder that falls into the coal cinder that is located the great piece of first filter cartridge 201 upside and passes through the coal cinder that the first filter cartridge 201 filtered the hole. Above-mentioned first screening mechanism makes the vibration volume that is located each position department of first filter cartridge 201 keep unanimous, avoids current vibration screening mechanism to keep away from the less problem that leads to blockking up the filter cartridge of the vibration volume of actuating mechanism end.
Specifically, an opening is arranged on the side wall of the box body 10, and the opening is closed by a door body 40 hinged to the box body 10; the door 40 is fixedly connected with the front side wall of the box body 10 through a cross lock. The cross lock is embedded in the left side of the door body 40, the lock cylinder of the cross lock penetrates through the left side wall of the door body 40 and then is embedded in the side wall of the box body 10, and the four corners of the lower surface of the box body 10 are fixedly welded with the support legs 103.
Specifically, in one embodiment, as shown in fig. 5 and 6, the sliding portion is a sliding wheel 2011, two sides of the first filter cassette 201 are provided with connecting rods 2012, and the front ends of the connecting rods 2012 are welded and fixed to the central shaft of the sliding wheel 2011 after passing through the limiting rings 2013 respectively. As shown in fig. 8, the slide rail 202 is formed as a square groove, the slide wheels 2011 are inserted into the square groove, the height of the groove wall of the square groove is slightly smaller than the radius of the slide wheels 2011, the protrusions 202a are uniformly arranged along the sliding direction of the sliding portion, the distance between the adjacent protrusions 202a is smaller than the diameter of the slide wheels 2011, the driving difficulty of the driving device is reduced by the linear contact between the slide wheels 2011 and the slide rail 202, the slide rail 202 is formed as a square groove and is matched with the slide wheels 2011, so that the stability of the slide wheels 2011 is improved, and the slide wheels 2011 are prevented from sliding out of the slide rail 202.
Specifically, the structure of the driving device is not exclusive, and in one embodiment, an electric driving device, such as an electric telescopic rod or a linear motor, capable of outputting linear motion may be adopted.
In another mode, as shown in fig. 3, the driving device includes a pneumatic driving device, the pneumatic driving device includes a pneumatic cylinder 203 installed outside the box body 10, and a piston rod of the pneumatic cylinder 203 is used for driving the first filter cassette 201.
Specifically, in one mode, the piston rod of the pneumatic cylinder 203 can be detachably connected with the first filter cartridge 201, so that the first filter cartridge 201 can move back and forth along with the extension or retraction of the piston rod of the pneumatic cylinder 203.
Because the mode of connecting first filter cartridge 201 with the piston rod of pneumatic cylinder 203 can lead to first filter cartridge 201 installation dismantlement comparatively difficult, for this reason, in order to realize first filter cartridge 201 reciprocating motion and make things convenient for the dismouting of first filter cartridge 201 relative box 10 simultaneously, in another mode, the end connection of the piston rod of pneumatic cylinder 203 has push pedal 204, push pedal 204 supports and leans on first filter cartridge 201, drive arrangement still include be located first filter cartridge 201 with the box 10 between first elastic component 205 that resets, the elasticity of first elastic component 205 is used for promoting first filter cartridge 201 moves towards the direction that is close to the piston rod. In this way, when the piston rod of the pneumatic cylinder 203 extends, the push plate 204 is driven to push the first filter cassette 201 to move along the first direction, and the first elastic return element 205 is in an energy storage state, and when the piston rod retracts, the elastic force of the first elastic return element 205 pushes the first filter cassette 201 to move along the second direction, and the first direction and the second direction are arranged in a reverse direction. Since the first filter cassette 201 does not need to be connected to other components, after the screening is completed, the door 40 can be directly opened to take out the first filter cassette 201.
More specifically, as shown in fig. 5 and 7, a plurality of limiting rods 2041 are disposed on the push plate 204, and a plurality of limiting grooves 2014 are disposed at corresponding positions on the first filter cassette 201; the limiting rod 2041 is inserted into the limiting groove 2014, and the inner diameter of the limiting groove 2014 is larger than the limiting rod 2041. The first filter cassette 201 can be prevented from falling off the slide rail 202 in the shaking process by the matching of the limiting rod 2041 and the limiting groove 2014.
Specifically, the first elastic resetting element 205 is a compression spring, and in order to achieve the stability of the first elastic resetting element 205, as shown in fig. 4, a sleeve 206 is disposed on an inner side wall of the box body 10, a sliding insertion rod 207 is slidably connected in the sleeve 206, a second elastic resetting element is disposed inside the sleeve 206, an elastic force of the second elastic resetting element is used for enabling the sliding insertion rod 207 to abut against an outer side wall of the first filter box 201, and the sleeve 206 and the sliding insertion rod 207 are sleeved with the first elastic resetting element 205. In the initial state, the sliding insertion rod 207 abuts against the outer side wall of the first filter box 201 under the action of the second elastic resetting piece, and the first elastic resetting piece 205 is still kept on the sleeve 206 when the first filter box 201 is dismounted as the first elastic resetting piece is sleeved on the sleeve 206 and the sliding insertion rod 207; meanwhile, the first elastic resetting element 205 is sleeved on the sleeve 206 and the sliding insertion rod 207, so that longitudinal acting force is prevented from being generated on the first elastic resetting element 205 in the vibration process of the first filter box 201, and the first elastic resetting element is prevented from being displaced to cause poor action reliability.
Specifically, the first elastic return element 205 is provided with two or more than two, the end portions of the sliding insertion rods 207 are connected to the same end plate 217, and the end plate 217 abuts against the side wall of the first filter cassette 201.
Specifically, the start and stop of the pneumatic cylinder 203 are realized by a control mechanism, specifically, the control mechanism comprises: a control switch 208 for controlling the start and stop of the pneumatic cylinder 203, wherein the control switch 208 is triggered by a push rod 209, and more specifically, for example, when the push rod 209 is triggered to the control switch 208, the piston rod of the pneumatic cylinder 203 is controlled to extend, and when the push rod 209 is far away from the control switch 208, the piston rod of the pneumatic cylinder 203 is retracted. The push plate device also comprises a fixed plate 210 for supporting the push rod 209 and a first cam 211 for driving the push plate 204 to move; the fixed plate 210 is fixedly connected to the outer side of the box body 10, and the push rod 209 is connected to the fixed plate 210 in a sliding manner; the first cam 211 rotates under the driving of the first driving motor 212 and pushes the push rod 209 to slide along the fixed plate 210.
Specifically, the first driving motor 212 drives the first cam 211 to rotate, when the end of the protrusion 202a of the first cam 211 rotates to face the side of the push rod 209, the first cam 211 pushes the push rod 209 to approach the control switch 208 until the control switch 208 is triggered, and when the end of the protrusion 202a of the first cam 211 rotates to be away from the side of the push rod 209, the push rod 209 and the control switch 208 are released from triggering.
As shown in fig. 9, the control switch 208 is fixed on the outer sidewall of the box 10, a support plate 213 is welded on the outer sidewall of the box 10, the fixing plate 210 is fixed on the supporting plate 213, the plate surface of the fixing plate 210 faces the trigger surface of the control switch 208, the fixing plate 210 is provided with a sliding hole, the push rod 209 is connected with the sliding hole in a sliding way, a movable plate 214 is connected to the end of the push rod 209 far away from the control switch 208, a third elastic return element 215 is disposed between the movable plate 214 and the fixed plate 210, the elastic force of the third return elastic member 215 serves to always abut the movable plate 214 against the cam surface of the first cam 211, therefore, when the first cam 211 rotates, the first cam can always abut against the movable plate 214 and drive the push rod 209 to move, so that the control switch 208 can reliably control the movement of the pneumatic cylinder 203.
In order to realize the subdivision and classification of the size of the coal briquette, two or more layers of the first screening mechanism are arranged in the box body 10, and the first screening mechanism is controlled by adopting the control mechanism, so that the first screening mechanism on a plurality of layers can be controlled by the same control mechanism. The control cost is saved, and the control process is simplified.
Specifically, a flow guide part 216 is arranged between the first screening mechanism on the upper layer and the first screening mechanism on the lower layer, and the flow guide part 216 is used for guiding coal filtered by the first filter box 201 on the upper layer into the first filter box 201 on the lower layer. More specifically, the flow guide 216 is in a funnel shape with a large top and a small bottom, the upper end of the flow guide 216 is welded to the inner wall of the box 10, and the lower end is suspended above the first filter cassette 201 in the lower layer.
In order to filter coal dust in coal, the coal vibration screening device further comprises a second screening mechanism which is positioned at the lower side of the first screening mechanism and used for filtering the coal dust with the smallest particles to the lower side of the first screening mechanism. The second screening mechanism includes: a filter plate 301 and a second cam 302 for supporting the filter plate 301, wherein the filter plate 301 is slidably connected to the side wall of the box 10; the second cam 302 is driven by a second driving motor 303 to rotate and drive the filter plate 301 to vibrate up and down. Wherein, the filter pore size of the filter plate 301 only allows coal dust with the particle size less than 1mm to pass through.
Specifically, in order to increase the vibration amount of the filter plate 301, at least two sets of the second cams 302 are disposed at the lower side of the filter plate 301, each set of the second cams 302 is uniformly arranged along the first direction of the filter plate 301, each set of the second cams 302 is connected to the second rotation shaft 304, the second rotation shafts 304 are arranged at least two in a second direction of the filter plates 301, the first direction is perpendicular to the second direction, the second driving motor 303 is installed outside the cabinet 10, a first belt pulley 305 is provided on an output shaft of the second driving motor 303, a second belt pulley 306 is provided on the second rotating shaft 304, the first pulley 305 is connected to the second pulley 306 through a timing belt, and the timing belt is configured to transmit the output force of the second driving motor 303 to the second rotating shaft 304 and drive the second cam 302 to rotate.
Specifically, the discharge port 102 includes a first discharge port 1021 and a second discharge port 1022, the first discharge port 1021 is located on the side wall of the upper side of the filter plate 301, the coal briquette passing through the lowermost layer and being located on the lower side of the first filter box 201 is led out through the first discharge port 1021, the second discharge port 1022 is located on the lower side of the filter plate 301 and is close to the bottom wall of the box 10, the coal dust passing through the lower side of the filter plate 301 is led out through the second discharge port 1022, and the dust can be conveniently removed by adopting a second screening mechanism and a double-discharge port structure.
In order to rapidly guide the coal dust to the second discharge port 1022 side, a guide plate 307 is further disposed on the lower side of the filter plate 301, the guide plate 307 is disposed obliquely, one end of the guide plate 307 is connected to the sidewall of the casing 10, and the other end of the guide plate is connected to the lower side of the second discharge port 1022.
The working process of the coal vibration screening device is as follows:
firstly, coal to be screened is poured into the box body 10 from the feeding hole 101, the coal blocks fall into the uppermost first filter box 201, the first driving motor 212 is started, the first driving motor 212 drives the first cam 211 to rotate, when the bulge 202a of the first cam 211 rotates to one side of the movable plate 214, the bulge 202a end of the first cam 211 moves the movable plate 214 to one side, the movable plate 214 compresses the third resetting elastic member 215 to drive the push rod 209 to move to one side, the push rod 209 presses the control switch 208, the control switch 208 starts the pneumatic cylinder 203, the pneumatic cylinder 203 drives the push plate 204 thereon to move, the push plate 204 drives the first filter box 201 to move to one side, the first resetting elastic member 205 is compressed by the first filter box 201, when the bulge 202a of the first cam 211 rotates to the other side of the movable plate 214, the elastic force of the third resetting elastic member 215 resets the movable plate 214, the movable plate 214 drives the push rod 209 to reset, the push rod 209 releases the control switch 208, the control switch 208 closes the pneumatic cylinder 203, the pneumatic cylinder 203 drives the push plate 204 to retract, the elastic force of the first reset elastic piece 205 resets the push plate 204 on the first reset elastic piece, the push plate 204 drives the first filter box 201 to reset, the first cam 211 drives the first filter box 201 to move back and forth in the rotating process, and the sliding wheel 2011 moves on the protrusion 202a in the back and forth moving process of the first filter box 201, so that the shaking is generated, and the filtering effect is achieved in the shaking process.
After the coal is filtered by the first filter box 201 at the lowest side, the coal falls to the upper side of the filter plate 301, the second driving motor 303 is started, the second driving motor 303 drives the first belt pulley 305 to rotate, the first belt pulley 305 drives the second belt pulleys 306 at the two sides to rotate through a transmission belt, the second belt pulley 306 drives the rotating shaft to rotate, the rotating shaft drives the second cam 302 to rotate, when the bulge 202a of the second cam 302 rotates to the upper side, the filter plate 301 is pushed upwards, when the bulge 202a of the second cam 302 rotates to the lower side, the filter plate 301 is loosened, the filter plate 301 is driven to rock in the process that the second cam 302 continuously rotates, so that the coal dust in the coal passes through the filter plate 301, falls onto the guide plate 307, is finally discharged into the second discharge port through the guide plate 307, and then discharged, after the coal is filtered, the door 1022 is opened, and a plurality of first filter boxes 201 are taken out from the box body 10, and (4) collecting.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (10)
1. A coal vibration screening device is characterized by comprising:
the upper wall of the box body is provided with a feeding hole, and the side wall of the box body is provided with a discharging hole;
and a first screening mechanism, the first screening mechanism comprising:
the first filter box is positioned at the lower side of the feed inlet, a plurality of filter holes are formed in the lower side wall of the first filter box, and a sliding part is arranged on the outer side of the first filter box;
the sliding rail is positioned on the lower side of the first filter box and matched with the sliding part, and a plurality of bulges are arranged on the sliding rail;
and the driving device drives the first filter box to enable the sliding part to move back and forth along the sliding rail.
2. A coal vibration screening device as claimed in claim 1, wherein said driving means includes pneumatic driving means, said pneumatic driving means includes a pneumatic cylinder mounted outside said box, a piston rod of said pneumatic cylinder being used to drive said first filter cartridge.
3. The coal vibrating screen device as claimed in claim 2, wherein the driving device further comprises a first return elastic member located between the first filter box and the box body, and the elastic force of the first return elastic member is used for pushing the first filter box to move towards the direction approaching the piston rod.
4. The coal vibrating screen device as claimed in claim 3, wherein a sleeve is arranged on the inner side wall of the box body, a sliding inserted bar is connected in the sleeve in a sliding manner, a second reset elastic member is arranged in the sleeve, the elastic force of the second reset elastic member is used for enabling the sliding inserted bar to abut against the outer side wall of the first filter box, and the first reset elastic member is sleeved on the sleeve and the sliding inserted bar.
5. A coal vibration screening device as claimed in claim 2, further comprising a control mechanism for controlling the start and stop of said first screening mechanism, said control mechanism comprising:
the control switch is used for controlling the starting and stopping of the pneumatic cylinder;
the end part of the push rod is used for triggering the control switch;
the fixed plate is fixedly connected to the outer side of the box body, and the push rod is connected to the fixed plate in a sliding mode;
the first cam is driven by the first driving motor to rotate and push the push rod to slide along the fixing plate.
6. A coal vibration screening device as claimed in claim 5, wherein a sliding hole is provided on said fixed plate, said push rod is slidably connected to said sliding hole, a movable plate is connected to an end portion of said push rod on a side away from said control switch, and an elastic damping member is provided between said movable plate and said fixed plate.
7. A coal vibration screening device as claimed in claim 5, characterized in that at least two layers of said first screening mechanism are arranged in said box body, a flow guiding member is arranged between said first screening mechanism on the upper layer and said first screening mechanism on the lower layer, said flow guiding member is used for guiding the coal filtered by said first filtering box on the upper layer into said first filtering box on the lower layer.
8. A coal vibrating screen device as claimed in claim 7, wherein said first screening means of several levels are controlled by the same said control means.
9. A coal vibratory screening apparatus as set forth in claim 1 including a second screening mechanism located below said first screening mechanism and including:
the filter plate is connected to the side wall of the box body in a sliding mode;
and the second cam is used for supporting the filter plate, and is driven by a second driving motor to rotate and drive the filter plate to vibrate up and down.
10. A coal vibratory screening apparatus as set forth in claim 9 wherein said discharge ports include a first discharge port located on a side wall of an upper side of said filter plate and a second discharge port located on a lower side of said filter plate and proximate a bottom wall of said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110217452.5A CN113000365A (en) | 2021-02-26 | 2021-02-26 | Coal vibration screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110217452.5A CN113000365A (en) | 2021-02-26 | 2021-02-26 | Coal vibration screening device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985252A (en) * | 2022-06-27 | 2022-09-02 | 上海交通大学 | Horizontal reciprocating type vibrating screen |
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| CN211051923U (en) * | 2019-09-18 | 2020-07-21 | 铁岭春天药业有限公司 | Be used for high-speed separation filter equipment of deer glue |
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