CN116216225A - Coal washing and selecting feeding device - Google Patents

Coal washing and selecting feeding device Download PDF

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Publication number
CN116216225A
CN116216225A CN202310506389.6A CN202310506389A CN116216225A CN 116216225 A CN116216225 A CN 116216225A CN 202310506389 A CN202310506389 A CN 202310506389A CN 116216225 A CN116216225 A CN 116216225A
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CN
China
Prior art keywords
plate
ring
conveying
screening
material conveying
Prior art date
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Granted
Application number
CN202310506389.6A
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Chinese (zh)
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CN116216225B (en
Inventor
张军
朱友恒
陈方明
马军杰
孙联军
刘磊
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Huaneng Lingtai Shaozhai Coal Industry Co ltd
Original Assignee
Huaneng Lingtai Shaozhai Coal Industry Co ltd
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Application filed by Huaneng Lingtai Shaozhai Coal Industry Co ltd filed Critical Huaneng Lingtai Shaozhai Coal Industry Co ltd
Priority to CN202310506389.6A priority Critical patent/CN116216225B/en
Publication of CN116216225A publication Critical patent/CN116216225A/en
Application granted granted Critical
Publication of CN116216225B publication Critical patent/CN116216225B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/007—Means for moving conveyor frames and control arrangements therefor
    • B65G41/008—Means for moving conveyor frames and control arrangements therefor frames mounted on wheels or caterpillar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/22—Arrangements or mountings of driving motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/12—Sieving bulk materials during loading or unloading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/14—Pulverising loaded or unloaded materials

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

The invention relates to the technical field of conveying, in particular to a coal washing and selecting feeding device, which comprises a bracket and a feeding mechanism, wherein a conveying platform with an inclined upper surface is arranged on the bracket; under the first conveying mode, the screening plate and the material conveying plate synchronously move and push materials from bottom to top, so that the materials are enabled to enter the material collecting space through the screening plate. Under the second conveying mode, the moving speed of the screening plate is larger than that of the material conveying plate, the screening plate is close to and staggered with the material conveying plate, and coal in the screening space is extruded and crushed in the process that the screening plate is close to and staggered with the material conveying plate. Reduce the caking of the materials and avoid influencing the normal use of the materials in the next working procedure.

Description

Coal washing and selecting feeding device
Technical Field
The invention relates to the technical field of conveying, in particular to a coal washing and selecting feeding device.
Background
In the process of washing, selecting or loading and unloading coal, a belt conveying or auger conveying mode is generally adopted for conveying, in the conveying process, the caking of part of coal can influence the use of the coal in the next process, sorting is needed before the coal is used, and the caking coal is scattered, so after the coal is conveyed to a designated position, one more process is needed to pick out and treat the caking coal, the process is complicated during the use, the efficiency is low, in the prior art, the invention patent with the publication number of CN115402809B discloses a coal dumping conveyor, the coal is sorted in the conveying process, the dumped coal is divided into three piles according to the diameter, but the caking coal cannot be treated in the conveying process to be qualified, further scattering treatment is needed after the sorting is finished, and the process is not saved.
Disclosure of Invention
The invention provides a coal washing and selecting feeding device, which aims to solve the problem that the existing conveying device cannot process caking materials in the conveying process.
The invention relates to a coal washing and selecting feeding device which adopts the following technical scheme:
the coal washing and selecting feeding device comprises a bracket, a driving mechanism and a feeding mechanism, wherein a conveying platform with an inclined upper surface is arranged on the bracket and is used for conveying materials from bottom to top along an inclined direction; the driving mechanism comprises a plurality of driving rings rotatably arranged on the bracket, and the side edges of the driving rings are parallel to the upper surface of the conveying platform; the feeding mechanism comprises a plurality of screening plates and a plurality of material conveying plates, the screening plates and the material conveying plates are sequentially and alternately arranged along the length direction of the conveying platform, a screening space is defined by the material conveying plate positioned on the higher side and the screening plate positioned between the two material conveying plates between every two adjacent material conveying plates, and a material collecting space is defined by the material conveying plate positioned on the lower side and the screening plate positioned between the two material conveying plates; the materials are put in the screening space and enter the aggregate space after being screened by the screening plate under the action of gravity; the screening plate and the material conveying plate are arranged on different transmission rings, the coal washing and selecting feeding device is provided with a first conveying mode and a second conveying mode, and in the first conveying mode, the screening plate and the material conveying plate synchronously move under the drive of the transmission rings and push materials from bottom to top; under the second conveying mode, the moving speed of the screening plate is larger than that of the material conveying plates, the screening plate is close to the material conveying plate on the adjacent higher side of the screening plate and is staggered, and then the screening plate moves between the two material conveying plates on the adjacent higher side of the screening plate, and coal in the screening space is extruded and crushed in the process that the screening plate is close to the material conveying plate and is staggered.
Further, in the first conveying mode, the screening plates are located at the middle positions of two adjacent material conveying plates.
Further, in the second conveying mode, after the screening plate passes over the material conveying plates and moves to the middle position of the other two material conveying plates, the screening plate is switched to the first conveying mode.
Further, the number of the transmission rings is four, every two transmission rings are in a group, and the two transmission rings in the same group are respectively positioned at two sides of the conveying platform; the two side edges of the driving ring are respectively positioned above and below the conveying platform and are connected through the arc-shaped section; the side edge above the conveying platform is a first side edge, and the side edge below the conveying platform is a second side edge; the screening plate and the material conveying plate are respectively arranged on the two groups of driving rings, and the driving ring where the screening plate is positioned on the outer ring of the driving ring where the material conveying plate is positioned; arc friction sections are arranged on the bracket at positions corresponding to the arc sections of each driving ring; the screening plate and the material conveying plate are respectively provided with a rotating ring, and the rotating rings rotate for 90 degrees under friction transmission when moving to contact with the friction section; torsion springs are arranged between the rotating ring and the screening plate and between the rotating ring and the material conveying plate; a limiting component is arranged between the rotating ring and the transmission ring, and the limiting component limits the rotating ring to rotate when the screening plate and the material conveying plate move along the first side edge and the second side edge of the transmission ring; the limiting assembly allows the rotating ring to rotate when the screening plate and the material conveying plate rotate to an arc section between two side edges of the driving ring, so that the rotating ring rotates by 90 degrees under the friction action with the friction section; when the screening plate and the material conveying plate move along the first side edge, the rotating ring drives the screening plate and the material conveying plate to be vertical to the conveying platform through the torsion springs; when the screening plate and the material conveying plate move along the second side edge, the rotating ring drives the screening plate and the material conveying plate to be parallel to the conveying platform through the torsion springs.
Further, the limiting assembly comprises a limiting ring, a locking ring and an elastic piece, and the limiting ring is fixed on the driving ring; the rotating ring is fixedly connected with a mounting shaft coaxial with the rotating ring, the locking ring is axially and slidably mounted on the mounting shaft along the mounting shaft, the mounting shaft is rotatably mounted on the limiting ring, and the mounting shaft limits the locking ring to rotate around the mounting shaft; the locking ring is connected with the rotating ring through an elastic piece, and the elastic piece promotes the locking ring to be matched with the limiting ring; the locking ring is matched with the limiting ring to limit the rotation of the locking ring, and then the rotation of the rotating ring is limited by the mounting shaft; the pushing protrusion is arranged at the position of the bracket corresponding to the arc section of the transmission ring, and when the rotating ring moves to the arc section of the transmission ring along with the transmission ring, the pushing protrusion pushes the locking ring to be separated from the limiting ring, so that the rotating ring is allowed to rotate under the friction action with the friction section.
Further, friction protrusions are arranged on the side faces of the material conveying plates so as to strengthen the crushing effect on materials when the friction protrusions are close to the screening plates and staggered.
Further, the support is also provided with a feed hopper, and the feed hopper is used for guiding materials to enter the screening space.
The beneficial effects of the invention are as follows: the coal washing and selecting feeding device provided by the invention has a first conveying mode and a second conveying mode, and in the first conveying mode, the screening plate and the material conveying plate synchronously move under the drive of the drive ring and push materials from bottom to top, so that the materials are enabled to enter the material collecting space through the screening plate. Under the second conveying mode, the moving speed of the screening plate is larger than that of the material conveying plates, the screening plate is close to the material conveying plate on the adjacent higher side of the screening plate and is staggered, and then the screening plate moves between the two material conveying plates on the adjacent higher side of the screening plate, and coal in the screening space is extruded and crushed in the process that the screening plate is close to the material conveying plate and is staggered. The first conveying mode and the second conveying mode can be selectively carried out, the first conveying mode can screen materials through the screening plates, the second conveying mode can squeeze and crush materials which do not pass through the screening plates, caking of the materials is reduced, and normal use of the materials in the next procedure is avoided.
Further, through setting up swivel becket, friction segment and spacing subassembly for when screening board and fortune flitch rotated the second side of driving the ring, rotated to being parallel with conveying platform, avoid being located the screening board of second side and fortune flitch under the second mode of carrying and interfere each other, and then cause unnecessary wearing and tearing.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of a coal washing and feeding device of the invention;
FIG. 2 is a front view of the overall structure of an embodiment of a coal washing and feeding device of the invention;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
FIG. 4 is a schematic view showing a state where a screening plate and a material conveying plate are close to each other in a second conveying mode in an embodiment of a coal washing and feeding device according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 4 at B;
FIG. 6 is a schematic diagram showing a staggered state of a screening plate and a conveying plate in a second conveying mode in an embodiment of a coal washing and feeding device of the present invention;
FIG. 7 is an enlarged schematic view of FIG. 6 at C;
FIG. 8 is a schematic view of another view of the overall structure of an embodiment of a coal wash loading device of the present invention;
FIG. 9 is an enlarged schematic view of FIG. 8 at D;
in the figure: 100. a bracket; 110. a conveying platform; 120. a friction section; 130. pushing the protrusion; 140. a feed hopper; 150. a support frame; 200. a driving mechanism; 210. a drive ring; 220. a motor; 300. a feeding mechanism; 310. a screening plate; 311. a rotating ring; 312. a mounting shaft; 320. a material conveying plate; 321. friction protrusions; 330. a limit component; 331. a limiting ring; 332. a locking ring; 333. an elastic member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a coal washing and feeding device of the invention, as shown in fig. 1 to 9, comprises a bracket 100, a driving mechanism 200 and a feeding mechanism 300.
The support 100 is provided with a conveying platform 110 with an inclined upper surface for conveying materials from bottom to top in an inclined direction; the conveying platform 110 may be a conveyor belt, and may be fixedly arranged to convey materials from bottom to top. A support frame 150 is provided at one side of the support frame 100 such that the transport platform 110 is inclined on the support frame 100, and rollers facilitating movement of the support frame 100 and the support frame 150 are provided at the lower ends thereof.
The driving mechanism 200 comprises a plurality of driving rings 210 rotatably mounted on the bracket 100, and the sides of the driving rings 210 are parallel to the upper surface of the conveying platform 110; the driving ring 210 may be a synchronous belt ring or a driving chain.
The feeding mechanism 300 comprises a plurality of screening plates 310 and a plurality of material conveying plates 320, wherein the screening plates 310 and the material conveying plates 320 are alternately arranged in sequence along the length direction of the conveying platform 110; between every two adjacent material transporting plates 320, the material transporting plate 320 positioned at the higher side and the screening plate 310 between the two material transporting plates 320 define a screening space, and the material transporting plate 320 positioned at the lower side and the screening plate 310 between the two material transporting plates 320 define an aggregate space; the material is placed in the screening space and screened by the screening plate 310 under the force of gravity and then enters the aggregate space.
The screening plates 310 and the carrier plates 320 are mounted to different drive rings 210, and the different drive rings 210 are driven by different driving elements. The coal washing and selecting feeding device is provided with a first conveying mode and a second conveying mode, and in the first conveying mode, the screening plate 310 and the material conveying plate 320 are driven by the driving ring 210 to synchronously move and push materials from bottom to top, so that the materials are enabled to enter a material collecting space through the screening plate 310; if the conveying platform 110 is a conveyor belt and conveys materials from bottom to top, the rotation speed of the driving ring 210 is adjusted to make the moving speed of the sieving plate 310 and the transporting plate 320 be greater than the moving speed of the conveyor belt, so that the transporting plate 320 and the sieving plate 310 can push the materials. In the second conveying mode, the moving speed of the screening plate 310 is greater than that of the material conveying plates 320, the screening plate 310 approaches and staggers with the material conveying plates 320 on the adjacent higher side and then moves between the two material conveying plates 320 on the adjacent higher side, and the coal in the screening space is crushed in the process that the screening plate 310 approaches and staggers with the material conveying plates 320. The first conveying mode and the second conveying mode can be selectively carried out, the first conveying mode can screen materials through the screening plate 310, the second conveying mode can squeeze and crush materials which do not pass through the screening plate 310, caking of the materials is reduced, and normal use of the materials in the next procedure is avoided. The first conveying mode and the second conveying mode can be switched by adjusting the rotation speed of the driving ring 210 installed on the sieving plate 310 and the material conveying plate 320, and in normal operation, the first conveying mode is used, and when or under what state the second conveying mode is switched, the first conveying mode and the second conveying mode can be controlled manually, or can be switched regularly, or can be judged by a sensor and program module, for example, the second conveying mode is switched automatically when the acting force of the sieving plate 310 on the material is larger than a preset value and is not reduced in the preset time.
In this embodiment, in the first conveying mode, the screening plate 310 is located at the middle position of two adjacent material conveying plates 320, and the size of the screening space is equal to that of the aggregate space, so that the amount of material that can be contained in the screening space is maximum on the premise that the aggregate space can contain the material screened in the screening space.
In the present embodiment, in the second conveying mode, after the sieving plate 310 passes over the material conveying plates 320, it is moved to the middle position of the other two material conveying plates 320, and then it is switched to the first conveying mode. The second conveying mode is mainly used as a transition means for processing the agglomerated materials in the sieving space, and the sieving plate 310 and the material conveying plate 320 return to the first conveying mode in the normal working state after being extruded and crushed once, so that the influence on the normal conveying of the materials is avoided.
In the present embodiment, there are four driving rings 210, and two driving rings 210 in the same group are respectively located at two sides of the conveying platform 110; the two driving rings 210 located at the same side are driven by different driving elements, for example, two motors 220 and two groups of driving wheels, wherein when the driving rings 210 are synchronous belt rings, the driving wheels are synchronous belt wheels, and when the driving rings 210 are driving chains, the driving wheels are chain wheels. Two sides of the driving ring 210 are respectively positioned above and below the conveying platform 110, and the two sides are connected through an arc section; the side edge above the conveying platform 110 is a first side edge, and the side edge below the conveying platform 110 is a second side edge; the screening plates 310 and the carrier plates 320 are mounted to the two sets of drive rings 210, respectively, and the drive ring 210 on which the screening plates 310 are located is located on the outer periphery of the drive ring 210 on which the carrier plates 320 are located, so that in the second conveying mode, the screening plates 310 pass over the carrier plates 320 from above the carrier plates 320. The middle part of the end part of the screening plate 310, which is close to the driving ring 210, and the middle part of the end part of the material conveying plate 320, which is close to the driving ring 210, are respectively provided with a rotating ring 311, the rotating ring 311 is rotationally connected with the screening plate 310 and the material conveying plate 320, and torsion springs are arranged between the rotating ring 311 and the screening plate 310 and between the rotating ring 311 and the material conveying plate 320; specifically, the middle parts of the sieving plate 310 and the material conveying plate 320 are provided with a connecting block, and the connecting block is rotatably installed in the rotating ring 311 and is connected with the rotating ring 311 through a torsion spring. An arc-shaped friction section 120 is arranged on the bracket 100 at the position corresponding to the arc-shaped section of each transmission ring 210; the rotating ring 311 rotates by 90 ° under friction transmission when it moves into contact with the friction section 120. A limiting assembly 330 is arranged between the rotating ring 311 and the transmission ring 210, and the limiting assembly 330 limits the rotation of the rotating ring 311 when the screening plate 310 and the material conveying plate 320 move along the first side edge and the second side edge of the transmission ring 210; the limiting assembly 330 allows the rotation of the rotation ring 311 when the screening plate 310 and the material carrying plate 320 are rotated to the arc-shaped section between the two sides of the transmission ring 210, thereby rotating the rotation ring 311 by 90 ° under the friction with the friction section 120. When the sieving plate 310 and the material conveying plate 320 move along the first side, the rotating ring 311 drives the sieving plate 310 and the material conveying plate 320 to be vertical to the conveying platform 110 through the torsion springs so that the sieving plate 310 and the material conveying plate 320 can push materials; when the sieving plate 310 and the material conveying plate 320 are close to each other, the sieving plate 310 and the material conveying plate 320 are staggered after overcoming the torsion force of the torsion spring, and in the process that the sieving plate 310 and the material conveying plate 320 rotate and are staggered, the sieving plate 310 and the material conveying plate 320 rub materials between the two. The rotation ring 311 urges the sieving plate 310 and the transporting plate 320 to be parallel to the transporting platform 110 by the torsion springs as the sieving plate 310 and the transporting plate 320 move along the second side. Wherein, the thickness of the sieving plate 310 and the material transporting plate 320 is not greater than the thickness of the transmission ring 210, so as to avoid the interference generated by the sieving plate 310 and the material transporting plate 320 when rotating to the second side. Because there is no material between the sieving plate 310 and the transporting plate 320 when the sieving plate 310 and the transporting plate 320 rotate to the second side, when the sieving plate 310 and the transporting plate 320 located at the first side approach each other, the sieving plate 310 and the transporting plate 320 located at the second side approach each other and are staggered to cause larger abrasion, so by rotating the rotating ring 311, the sieving plate 310 and the transporting plate 320 rotate to be parallel to the conveying platform 110 under the action of the torsion spring, the mutual interference between the sieving plate 310 and the transporting plate 320 moving to the second side can be avoided, and further unnecessary abrasion is caused.
In the present embodiment, the limiting assembly 330 includes a limiting ring 331, a locking ring 332 and an elastic member 333, wherein the limiting ring 331 is fixed to the driving ring 210; the rotating ring 311 is fixedly connected with a mounting shaft 312 coaxial with the rotating ring 311, the locking ring 332 is axially and slidably mounted on the mounting shaft 312 along the mounting shaft 312, the mounting shaft 312 is rotatably mounted on the limiting ring 331, and the end part of the mounting shaft 312 is provided with a cylindrical structure in rotary fit with the limiting ring 331; and the mounting shaft 312 restricts rotation of the lock ring 332 about the mounting shaft 312; specifically, the mounting shaft 312 may be in a polygonal structure, and the inner ring of the locking ring 332 is in a polygonal structure matched with the polygonal structure, so that the locking ring 332 is sleeved on the mounting shaft 312 and then can move along the mounting shaft 312 and is limited to rotate by the mounting shaft 312; in some other embodiments, the locking ring 332 may also be engaged with the mounting shaft 312 via splines axially disposed along the mounting shaft 312. The locking ring 332 is connected with the rotating ring 311 through an elastic piece 333, and the elastic piece 333 urges the locking ring 332 to be matched with the limiting ring 331; the locking ring 332 is matched with the limiting ring 331 to limit the rotation of the locking ring 332, and the rotation of the rotating ring 311 is further limited by the mounting shaft 312; specifically, the inner ring of the limiting ring 331 is provided with two inner hole shapes, the circumferential surface of the inner ring of the limiting ring 331 and the rotating fit position of the mounting shaft 312, and the matching position of the inner ring of the limiting ring 331 and the outer ring of the locking ring 332 is a polygonal cylinder. The pushing protrusion 130 is arranged on the bracket 100 at the position corresponding to the arc section of the transmission ring 210, and when the rotating ring 311 moves to the arc section of the transmission ring 210 along with the transmission ring 210, the pushing protrusion 130 pushes the locking ring 332 to be separated from the limiting ring 331, so that the rotating ring 311 is allowed to rotate under the friction action with the friction section 120; specifically, a guide slope is provided on the side of the pushing protrusion 130 that contacts the locking ring 332, so that the locking ring 332 is separated from the limiting ring 331 along the guide slope. Wherein, the pushing protrusion 130 with a proper length can be configured according to the diameter of the rotating ring 311, so that after the rotating ring 311 contacts with the friction section 120 and rotates by 90 degrees, the pushing protrusion 130 does not push the locking ring 332 any more, so that the locking ring 332 is restored to cooperate with the limiting ring 331 under the action of the elastic member 333, and the rotating ring 311 is prevented from rotating. Or the friction section 120 with proper length is configured according to the diameter of the rotating ring 311, so that the rotating ring 311 just rotates 90 degrees in the process of contacting with the friction section 120, the length of the pushing protrusion 130 is equal to the length of the friction section 120, and the pushing protrusion 130 is ensured to push the locking ring 332 to be separated from the limiting ring 331 during the process of contacting the rotating ring 311 with the friction section 120. In order to ensure that the locking ring 332 can also be matched with the limiting ring 331 under the action of the elastic member 333 after the rotating ring 311 rotates 90 degrees, the locking ring 332 can be matched with the limiting ring 331 through a regular quadrangular prism surface or a regular octagonal prism surface.
In this embodiment, the friction protrusions 321 are disposed on the side of the material conveying plate 320, and the friction protrusions 321 can enhance the crushing effect on the material during the process of rubbing the material between the sieving plate 310 and the material conveying plate 320.
In this embodiment, a feeding hopper 140 is further provided on the support 100, and the feeding hopper 140 is used for guiding the material into the screening space.
In normal operation, the coal washing and feeding device adopts a first conveying mode, two transmission rings 210 respectively drive a plurality of screening plates 310 and a plurality of material conveying plates 320 to move at the same speed, materials are thrown into screening spaces defined by the screening plates 310 and the material conveying plates 320 positioned at the first side edges through the feed hoppers 140, the screening plates 310 and the material conveying plates 320 positioned at the first side edges of the transmission rings 210 push the materials to move from bottom to top on the conveying platform 110, the materials flow to an aggregate space through the screening plates 310 under the action of gravity, and large blocks of materials remain in the screening spaces. When the amount of the large materials remained in the screening space is large, the second conveying mode is switched, so that the rotating speed of the transmission ring 210 provided with the screening plate 310 is larger than that of the transmission ring 210 provided with the material conveying plate 320, the screening plate 310 approaches to the material conveying plate 320 adjacent to the screening plate on the higher side, and the screening plate 320 and the material conveying plate 320 jointly act to squeeze the materials in the screening space, and part of the materials flow to the collecting space through the screening plate 310 after being squeezed and crushed. The screening plate 310 continues to approach the material conveying plate 320, because the transmission ring 210 where the screening plate 310 is located on the outer ring of the transmission ring 210 where the material conveying plate 320 is located, the screening plate 310 rotates and pushes the material conveying plate 320 to rotate when the material conveying plate 320 cannot move further under the obstruction of the material conveying plate 320, and the screening plate 310 passes over the upper side of the material conveying plate 320 in an inclined state, so that materials between the screening plate 310 and the material conveying plate 320 are rubbed and crushed further. To the point where the screen plate 310 passes over the material conveying plates 320 and moves to an intermediate position between the next adjacent two material conveying plates 320, the coal wash loading device switches back to the first conveying mode.
When the screening plate 310 and the material conveying plate 320 move at the first side of the transmission ring 210, the limiting ring 331 is matched with the locking ring 332 so as to limit the rotation of the rotation ring 311 through the mounting shaft 312, the screening plate 310 and the material conveying plate 320 are kept perpendicular to the conveying platform 110 under the action of torsion springs, and the rotation is generated against the torsion force of the torsion springs when the screening plate 310 and the material conveying plate 320 are close to and staggered. When the material is pushed to the upper end of the conveying platform 110 by the material conveying plate 320, the material can fall from the conveying platform 110 to the next working procedure to be processed or the space to be stored. When the screening plate 310 and the material conveying plate 320 move to the arc-shaped section of the transmission ring 210, the pushing protrusion 130 pushes the locking ring 332 to be separated from the limiting ring 331, so that the rotation ring 311 is allowed to rotate when moving to be in contact with the friction section 120, and the rotation angle is 90 degrees. Until the limiting component 330 moves along with the driving ring 210 to cross the pushing protrusion 130, the locking ring 332 is matched with the limiting ring 331 again under the action of the elastic component 333, and the rotation of the rotating ring 311 is limited, so that when the screening plate 310 and the material conveying plate 320 move to the second side of the driving ring 210, the screening plate 310 and the material conveying plate 320 are kept parallel to the conveying platform 110 under the action of the torsion spring, and the mutual interference between the screening plate 310 and the material conveying plate 320 positioned at the second side in the second conveying mode is avoided, so that unnecessary abrasion is caused.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (7)

1. A coal washing and selecting feeding device is characterized in that: comprises a bracket, a driving mechanism and a feeding mechanism,
the support is provided with a conveying platform with an inclined upper surface, and the conveying platform is used for conveying materials from bottom to top along an inclined direction;
the driving mechanism comprises a plurality of driving rings rotatably arranged on the bracket, and the side edges of the driving rings are parallel to the upper surface of the conveying platform;
the feeding mechanism comprises a plurality of screening plates and a plurality of material conveying plates, the screening plates and the material conveying plates are sequentially and alternately arranged along the length direction of the conveying platform, a screening space is defined by the material conveying plate positioned on the higher side and the screening plate positioned between the two material conveying plates between every two adjacent material conveying plates, and a material collecting space is defined by the material conveying plate positioned on the lower side and the screening plate positioned between the two material conveying plates; the materials are put in the screening space and enter the aggregate space after being screened by the screening plate under the action of gravity;
the screening plate and the material conveying plate are arranged on different transmission rings, the coal washing and selecting feeding device is provided with a first conveying mode and a second conveying mode, and in the first conveying mode, the screening plate and the material conveying plate synchronously move under the drive of the transmission rings and push materials from bottom to top; under the second conveying mode, the moving speed of the screening plate is larger than that of the material conveying plates, the screening plate is close to the material conveying plate on the adjacent higher side of the screening plate and is staggered, and then the screening plate moves between the two material conveying plates on the adjacent higher side of the screening plate, and coal in the screening space is extruded and crushed in the process that the screening plate is close to the material conveying plate and is staggered.
2. The coal washout loading device of claim 1, wherein: in the first conveying mode, the screening plates are located at the middle positions of two adjacent material conveying plates.
3. The coal washout loading device of claim 1, wherein: in the second conveying mode, the screening plate moves to the middle position of the other two conveying plates after passing over the conveying plates, and then the first conveying mode is switched.
4. The coal washout loading device of claim 1, wherein: the number of the driving rings is four, every two driving rings are in a group, and the two driving rings in the same group are respectively positioned at two sides of the conveying platform; the two side edges of the driving ring are respectively positioned above and below the conveying platform and are connected through the arc-shaped section; the side edge above the conveying platform is a first side edge, and the side edge below the conveying platform is a second side edge; the screening plate and the material conveying plate are respectively arranged on the two groups of driving rings, and the driving ring where the screening plate is positioned on the outer ring of the driving ring where the material conveying plate is positioned; arc friction sections are arranged on the bracket at positions corresponding to the arc sections of each driving ring; the screening plate and the material conveying plate are respectively provided with a rotating ring, and the rotating rings rotate for 90 degrees under friction transmission when moving to contact with the friction section; torsion springs are arranged between the rotating ring and the screening plate and between the rotating ring and the material conveying plate; a limiting component is arranged between the rotating ring and the transmission ring, and the limiting component limits the rotating ring to rotate when the screening plate and the material conveying plate move along the first side edge and the second side edge of the transmission ring; the limiting assembly allows the rotating ring to rotate when the screening plate and the material conveying plate rotate to an arc section between two side edges of the driving ring, so that the rotating ring rotates by 90 degrees under the friction action with the friction section; when the screening plate and the material conveying plate move along the first side edge, the rotating ring drives the screening plate and the material conveying plate to be vertical to the conveying platform through the torsion springs; when the screening plate and the material conveying plate move along the second side edge, the rotating ring drives the screening plate and the material conveying plate to be parallel to the conveying platform through the torsion springs.
5. The coal washout loading attachment of claim 4, wherein: the limiting assembly comprises a limiting ring, a locking ring and an elastic piece, and the limiting ring is fixed on the driving ring; the rotating ring is fixedly connected with a mounting shaft coaxial with the rotating ring, the locking ring is axially and slidably mounted on the mounting shaft along the mounting shaft, the mounting shaft is rotatably mounted on the limiting ring, and the mounting shaft limits the locking ring to rotate around the mounting shaft; the locking ring is connected with the rotating ring through an elastic piece, and the elastic piece promotes the locking ring to be matched with the limiting ring; the locking ring is matched with the limiting ring to limit the rotation of the locking ring, and then the rotation of the rotating ring is limited by the mounting shaft; the pushing protrusion is arranged at the position of the bracket corresponding to the arc section of the transmission ring, and when the rotating ring moves to the arc section of the transmission ring along with the transmission ring, the pushing protrusion pushes the locking ring to be separated from the limiting ring, so that the rotating ring is allowed to rotate under the friction action with the friction section.
6. The coal washout loading device of claim 1, wherein: the side of fortune flitch is provided with friction arch to strengthen the crushing effect to the material when being close to each other and staggering with the screening board.
7. The coal washout loading device of claim 1, wherein: the support is also provided with a feed hopper, and the feed hopper is used for guiding materials to enter the screening space.
CN202310506389.6A 2023-05-08 2023-05-08 Coal washing and selecting feeding device Active CN116216225B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310506389.6A CN116216225B (en) 2023-05-08 2023-05-08 Coal washing and selecting feeding device

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Application Number Priority Date Filing Date Title
CN202310506389.6A CN116216225B (en) 2023-05-08 2023-05-08 Coal washing and selecting feeding device

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CN116216225A true CN116216225A (en) 2023-06-06
CN116216225B CN116216225B (en) 2023-07-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044059A (en) * 2016-06-21 2016-10-26 陈铭鸿 Bucket type water removing device
CN207293293U (en) * 2017-07-26 2018-05-01 沈红如 A kind of multi-function material elevator
CN212173618U (en) * 2020-05-11 2020-12-18 山东英才学院 Multifunctional conveying belt feeding device
CN212424469U (en) * 2020-06-17 2021-01-29 大同煤炭职业技术学院 Improved coal mine conveying device
CN213621766U (en) * 2020-10-19 2021-07-06 佛山市火点自动化设备有限公司 Pipeline for lifting materials by vibrating conveyor
KR102364327B1 (en) * 2021-11-09 2022-02-17 주식회사 초당산업 A hybrid type separation discharge device consisting of a one-shot loop type discharge of aggregate and sludge and a two-stage separation of foreign substances

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044059A (en) * 2016-06-21 2016-10-26 陈铭鸿 Bucket type water removing device
CN207293293U (en) * 2017-07-26 2018-05-01 沈红如 A kind of multi-function material elevator
CN212173618U (en) * 2020-05-11 2020-12-18 山东英才学院 Multifunctional conveying belt feeding device
CN212424469U (en) * 2020-06-17 2021-01-29 大同煤炭职业技术学院 Improved coal mine conveying device
CN213621766U (en) * 2020-10-19 2021-07-06 佛山市火点自动化设备有限公司 Pipeline for lifting materials by vibrating conveyor
KR102364327B1 (en) * 2021-11-09 2022-02-17 주식회사 초당산업 A hybrid type separation discharge device consisting of a one-shot loop type discharge of aggregate and sludge and a two-stage separation of foreign substances

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