CN118179718A - A circulating screening device for coal conveyor belt of thermal power plant - Google Patents
A circulating screening device for coal conveyor belt of thermal power plant Download PDFInfo
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- CN118179718A CN118179718A CN202410513955.0A CN202410513955A CN118179718A CN 118179718 A CN118179718 A CN 118179718A CN 202410513955 A CN202410513955 A CN 202410513955A CN 118179718 A CN118179718 A CN 118179718A
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- circular arc
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- screening
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
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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
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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
- 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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a thermal power coal conveying belt circulating screening device, which has the beneficial effects that firstly, the automatic treatment of coal is realized, the whole process from dumping, crushing and grinding to screening is completed through a mechanical structure, the treatment efficiency is greatly improved, and the requirement of manual operation is reduced; secondly, the crushing and grinding structure can efficiently process coal with different granularity to reach granularity suitable for further processing or combustion, so that the stability and the efficiency of boiler combustion are ensured; in addition, the design of screening structure is very ingenious, through Y type screening piece and the mode of rotatory screening, can separate coal according to the size accurately, has realized the processing of refining of coal.
Description
Technical Field
The invention relates to the technical field of xx, in particular to a thermal power coal conveying belt circulating screening device.
Background
In the operation of a thermal power plant, conveyor belts play a vital role, and they silently bear the task of conveying coal, so as to ensure that the combustion of a boiler is carried out smoothly. However, it is not difficult to find that these coals are not all of the same size. Some are blocky and have different sizes; some are finely pulverized and mixed with lump coal.
In order to improve the combustion efficiency of the boiler, the treatment of coal is particularly critical. The pulverized coal can be directly fed into a boiler for combustion because of fine particles of the pulverized coal can be more fully mixed with air. While coal briquettes are not, they need to be crushed to have a proper particle size to ensure the stability and high efficiency of the combustion process, and in order to solve the above problems, there may be a technical means in the prior art, but the present disclosure is intended to provide an alternative or alternative technical solution.
Disclosure of Invention
The technical scheme of the invention for achieving the purpose is as follows: a thermal power coal conveying belt circulation screening device, comprising: the grinding and polishing device comprises three concave inclined conveying blocks, a pair of belt conveyors, a Y-shaped screening block, a processing bracket and a grinding and polishing box, wherein the three concave inclined conveying blocks are arranged on the processing bracket, the Y-shaped screening block is connected to the three concave inclined conveying blocks, the pair of belt conveyors are arranged on the three concave inclined conveying blocks, the grinding and polishing box is arranged on the processing bracket, a screening structure is arranged on the Y-shaped screening block, a circulating structure is arranged on the concave inclined conveying block and the grinding and polishing box, and a grinding and polishing structure is arranged on the grinding and polishing structure;
The screening structure comprises: the device comprises a feeding horn-shaped drainage block, three circular arc limiting plates, a rotary driver, a rotary driving cylindrical block, a plurality of circular arc rotary limiting blocks, a plurality of filtering screening nets, a plurality of circular arc rotary blocks, a plurality of circular arc horn-shaped rotary collecting blocks, a pair of circular arc screening plates, a circular arc drainage block, an L-shaped rotary discharge plate, a rotary discharge shaft, a pair of circular arc rotary shaft pipes, a pair of circular arc rotary shaft rods, a pair of circular arc buffer sliding blocks and a pair of circular arc buffer springs;
the feeding horn-shaped drainage block is arranged on the concave inclined transportation block, three arc limiting blocks are inserted on the processing bracket and the Y-shaped screening block, the rotary driving machine is arranged on the processing bracket, the rotary driving cylindrical block is arranged on the driving end of the rotary driving machine, the rotary driving cylindrical block is movably inserted on the inner side of the three arc limiting pieces, a plurality of square rotary limiting blocks are inserted on the rotary driving cylindrical block, a plurality of filtering screening nets are arranged on a plurality of square rotary limiting blocks, a plurality of circular arc rotary blocks are respectively arranged on a plurality of square rotary limiting blocks, a plurality of square horn-shaped rotary collecting blocks are respectively arranged on the upper end and the lower end of the square rotary limiting blocks, the pair of arc screening plates are arranged on the three arc limiting plates, the square drainage blocks are arranged on the Y-shaped screening blocks and the concave inclined transportation blocks, the L-shaped rotary discharging blocks are inserted on the square drainage blocks through the rotary discharging shafts, the pair of arc rotary shaft pipes are inserted on the concave inclined transportation blocks in parallel, the pair of arc rotary shaft pipes are respectively movably inserted on the inner sides of the pair of arc rotary shaft pipes, the pair of arc buffer sliding blocks are respectively connected on the pair of arc rotary shaft pipes, the pair of arc buffer springs are respectively arranged on the inner sides of the pair of arc rotary shaft pipes, and the pair of arc buffer springs are respectively connected on the pair of arc buffer sliding blocks;
In the above, the coal is poured into the inner side of the crushing and grinding box, crushed and ground by the crushing and grinding structure at the inner side of the crushing and grinding box, the crushed coal is guided to the belt conveyor on the concave inclined conveying block, the crushed coal is conveyed to the inner side of the Y-shaped screening block by the operation of the belt conveyor on the concave inclined conveying block, the screened coal is screened by the screening structure on the Y-shaped screening block, the screened coal is stably guided by the belt conveyor on the other concave inclined conveying block, the coal smaller than a certain size is guided to the concave inclined conveying block without the belt conveyor more than a certain one-way, and the excessive coal is guided to the circulating structure by the inclination of the concave inclined conveying block, the method comprises the steps of guiding oversized coal to the inner side of a crushing and grinding box through a circulating structure, guiding the coal on a belt conveyor on a concave inclined conveying block to the positions between three circular arc limiting sheets on the inner side of a Y-shaped screening block through a feeding horn-shaped guiding block, driving a rotary driving cylindrical block on a driving end of the rotary driving machine to rotate through the operation of the rotary driving machine, driving a plurality of rotary limiting blocks on the rotary driving cylindrical block through the rotary driving cylindrical block, driving the coal on the inner side of the Y-shaped screening block to rotate and screen through the rotation of a rotary horn-shaped rotary collecting block, driving the coal to rotate and screen downwards through a rotary filtering and screening net at the same time, collecting the coal to a circular arc screening plate, shunting the coal to different concave inclined conveying blocks through the circular arc screening plate, driving the undersize conveying, and (5) carrying out excessive cyclic crushing.
Preferably, the circulation structure comprises: the device comprises a horn circulation drainage tube, a circulation tower, a plurality of circulation cylindrical inner boxes, a plurality of return-shaped drainage blocks, a plurality of circulation driving shafts, a plurality of rotary scraping blades, a pair of circulation driving machines and a pair of circulation gear sets;
The circulating tower is arranged on the processing bracket, the horn circulating drainage tube is connected to the circulating tower and the concave inclined transportation block, the plurality of circulating cylinder inner boxes are uniformly inserted into the inner side of the circulating tower, the plurality of return-shaped drainage blocks are respectively connected to the plurality of circulating cylinder inner boxes and the crushing and grinding box, the plurality of circulating driving shafts are respectively inserted into the plurality of circulating cylinder inner boxes and the crushing and grinding box, the plurality of rotating scraping blades are respectively arranged on the plurality of rotating driving shafts, a pair of circulating gear sets are respectively arranged on the plurality of circulating driving shafts, and a pair of driving ends of the circulating driving machines are respectively connected to a pair of circulating gear sets;
In the above description, through the inboard loudspeaker circulation drainage tube of concave type slope transport block, through the inboard of loudspeaker circulation drainage tube with the inboard circulation cylinder inner box of oversized coal drainage to the circulating tower, through a pair of circulation driving machine operation, drive the circulation gear train operation on a pair of circulation driving machine driving end respectively, drive a plurality of circulation drive shaft on it through a pair of circulation gear train, drive a plurality of rotatory doctor blade on it through a plurality of circulation drive shaft, push the inboard of return shape drainage block with coal one by one through a plurality of rotatory doctor blade, upwards rotate the drainage one by one with coal through return shape drainage block, afterwards with the inboard of endless coal drainage to smashing the grinding case.
Preferably, the crushing and grinding structure comprises: the grinding device comprises a plurality of horn-shaped current limiting blocks, a plurality of grinding rollers, a grinding cylindrical block, a pair of circular arc grinding blocks, a square lifting support block, two pairs of lifting grinding threaded rods, two pairs of lifting grinding threaded pipes, a lifting grinding gear set and a lifting grinding driver;
The device comprises a plurality of horn-shaped current limiting blocks, a plurality of crushing rollers, a plurality of grinding rollers, a plurality of lifting grinding threaded pipes, a pair of circular arc grinding blocks, a lifting grinding threaded pipe, a lifting grinding gear set, a lifting grinding threaded rod driving end and a lifting grinding driving end, wherein the horn-shaped current limiting blocks are uniformly arranged on the crushing grinding box, the crushing rollers and the grinding rollers are uniformly arranged on the inner side of the crushing grinding box, the crushing rollers and the grinding rollers are positioned between the horn-shaped current limiting blocks, the grinding cylindrical blocks are inserted on the inner side of the crushing grinding box through bearings, the lifting supporting blocks are arranged in the crushing grinding box, the two pairs of lifting grinding threaded pipes are inserted on the circular arc lifting supporting blocks and the horn-shaped current limiting blocks through bearings, the two pairs of lifting grinding threaded pipes are respectively sleeved on the lifting grinding threaded pipes, the lifting grinding gear set is arranged on the two pairs of lifting grinding threaded pipes, and the lifting grinding driving end is connected to the lifting grinding gear set;
It should be noted that, in the above, coal is crushed through crushing roller, coal is guided to between the grinding rollers through loudspeaker type current-limiting block, coal is ground through the cooperation of a plurality of grinding rollers, then, between grinding cylinder piece and a pair of circular arc grinding piece through loudspeaker type current-limiting block drainage, through the operation of lift grinding driving machine, drive the lift grinding gear train operation on the lift grinding driving machine driving end, drive the lift grinding threaded rod rotation on it through lift grinding gear train, drive the lift grinding threaded pipe on it through lift grinding threaded rod, drive the vertical lift of a pair of circular arc grinding piece on it respectively through two pairs of lift grinding threaded pipes, through changing the distance between a pair of circular arc grinding piece and the grinding cylinder piece, thereby drive the phenomenon of change grinding effect.
Preferably, the processing bracket is provided with a plurality of cover-mounted sleeve boxes.
Preferably, two pairs of L-shaped sealing rubber strips are arranged on the pair of arc grinding blocks and the horn-shaped current limiting block.
Preferably, the three concave inclined transport blocks are respectively provided with a pair of triangular drainage blocks.
Preferably, a plurality of the rotary limiting blocks are provided with replacement slotted holes, and a plurality of the filtering and screening nets are respectively inserted into the inner sides of the replacement slotted holes in a sliding way.
Preferably, a drainage adhesive tape is arranged at the bottom end of the L-shaped rotary discharging plate.
Preferably, a plurality of support shafts are arranged on the pair of concave inclined transport blocks.
Preferably, the concave inclined transportation block is provided with an inflation tube and an inflation pump.
Compared with the prior art, the thermal power coal conveying conveyor belt circulating screening device manufactured by the technical scheme of the invention has the advantages that: firstly, the automatic treatment of coal is realized, from dumping, crushing and grinding to screening, the whole process is completed through a mechanical structure, the treatment efficiency is greatly improved, and the requirement of manual operation is reduced; secondly, the crushing and grinding structure can efficiently process coal with different granularity to reach granularity suitable for further processing or combustion, so that the stability and the efficiency of boiler combustion are ensured; in addition, the design of the screening structure is very ingenious, and coal can be accurately separated according to the size in a Y-shaped screening block and rotary screening mode, so that the fine treatment of the coal is realized; the introduction of the circulation structure is also a bright point, and the excessive coal can be reintroduced into the crushing and grinding box for retreatment, so that all the coal can reach proper granularity, and the waste of resources is avoided; finally, each part in the process is carefully designed, such as a crushing roller, a grinding roller, a lifting grinding mechanism and the like, and the cooperation of the crushing roller, the grinding roller, the lifting grinding mechanism and the like enables the whole treatment process to be smoother and more efficient.
Drawings
Fig. 1 is a schematic front view in cross section of a thermal power coal conveying belt circulation screening device.
Fig. 2 is a schematic side sectional view of a thermal power coal conveying belt circulation screening device according to the invention.
Fig. 3 is a schematic top cross-sectional view of a thermal power coal conveying belt circulation screening device according to the invention.
Fig. 4 is a schematic rear view in cross section of a thermal power coal conveying belt circulation screening device according to the present invention.
Fig. 5 is a partial enlarged view of "a" in fig. 2.
In the figure: 1. concave inclined transport blocks; 2. a belt conveyor; 3. y-shaped screening blocks; 4. crushing and grinding the box; 1001. feeding horn-shaped drainage blocks; 1002. arc limiting sheets; 1003. a rotary driving machine; 1004. rotationally driving the cylindrical block; 1005. a rotary limiting block in a shape of a circle; 1006. arc buffer spring; 1007. a filtering and screening net; 1008. a circular arc rotating block; 1009. a horn-shaped rotary collecting block; 1010. arc screening plate; 1011. a return-shaped drainage block; 1012. an L-shaped rotary stripper plate; 1013. rotating a discharging shaft; 1014. arc rotary shaft tube; 1015. arc rotating shaft lever; 1016. arc buffer slide block; 2001. a horn circulation drainage tube; 2002. a circulating tower; 2003. a circulating cylinder inner box; 2004. a return-shaped drainage block; 2005. a circulating drive shaft; 2006. rotating the wiper blade; 2007. a circulating driving machine; 2008. a circulation gear set; 3001. a horn-type current limiting block; 3002. crushing a roller; 3003. a grinding roller; 3004. grinding the cylindrical block; 3005. arc grinding blocks; 3006. a lifting support block in a shape of a loop; 3007. lifting and grinding the threaded rod; 3008. lifting and grinding the threaded pipe; 3009. lifting the grinding gear set; 3010. lifting the grinding driver.
Detailed Description
All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the following working principles in the working sequence among the electric components, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted from the description of electric control.
Examples
The present invention will be described in detail below with reference to the accompanying drawings, as shown in fig. 1-5, three concave inclined transport blocks 1 are mounted on the processing support, a Y-shaped screening block 3 is connected to the three concave inclined transport blocks 1, a pair of belt conveyors 2 are mounted on the three concave inclined transport blocks 1, a crushing and grinding box is mounted on the processing support, a screening structure is mounted on the Y-shaped screening block 3, a circulation structure is mounted on the concave inclined transport blocks 1 and the crushing and grinding box, and a crushing and grinding structure is mounted on the crushing and grinding structure; the screening structure comprises: the device comprises a feeding horn-shaped drainage block, three circular arc limiting sheets, a rotary driving machine, a rotary driving cylindrical block, a plurality of circular arc rotary limiting blocks, a plurality of filtering and screening nets, a plurality of circular arc rotary blocks, a plurality of circular arc horn-shaped rotary collecting blocks and a pair of circular arc screening plates, wherein the circular arc rotary collecting blocks are respectively arranged on the circular arc rotary limiting sheets; 1010. the rectangular drainage block 1011, the L-shaped rotary discharge plate 1012, the rotary discharge shaft 1013, the pair of circular arc rotary shaft pipes 1014, the pair of circular arc rotary shaft rods 1015, the pair of circular arc buffer sliding blocks and the pair of circular arc buffer springs; the feeding horn-shaped drainage block is arranged on the concave inclined transportation block 1, three circular arc limiting blocks are inserted on the processing bracket and the Y-shaped screening block 3, the rotary driving machine is arranged on the processing bracket, the rotary driving cylindrical block is arranged on the driving end of the rotary driving machine, the rotary driving cylindrical block is movably inserted on the inner sides of the three circular arc limiting pieces, a plurality of circular arc limiting blocks are inserted on the rotary driving cylindrical block, a plurality of filtering screening nets are arranged on a plurality of circular arc rotating limiting blocks, a plurality of circular arc rotating blocks are respectively arranged on a plurality of circular arc rotating limiting blocks, the circular arc screening plates are respectively arranged at the upper ends and the lower ends of the circular arc screening plates; 1010 are mounted on the three circular arc limiting plates, the rectangular drainage block 1011 is mounted on the Y-shaped screening block 3 and the concave inclined transportation block 1, the L-shaped rotary unloading block is inserted on the rectangular drainage block 1011 through the rotary unloading shaft 1013, a pair of circular arc rotary shaft pipes 1014 are inserted on the concave inclined transportation block 1 in parallel, a pair of circular arc rotary shaft rods 1015 are respectively movably inserted on the inner sides of the pair of circular arc rotary shaft pipes 1014, a pair of circular arc buffer slide blocks are respectively movably inserted on the inner sides of the pair of circular arc rotary shaft pipes 1014, and the pair of circular arc buffer slide blocks are respectively connected on the pair of circular arc rotary shaft pipes 1015, a pair of arc buffer springs are respectively installed at the inner sides of the pair of arc rotary shaft tubes 1014, and are respectively connected to the pair of arc buffer sliding blocks; the circulation structure comprises: the device comprises a horn circulation drainage tube, a circulation tower, a plurality of circulation cylindrical inner boxes, a plurality of return-shaped drainage blocks 1011, a plurality of circulation driving shafts, a plurality of rotary scraping blades, a pair of circulation driving machines and a pair of circulation gear sets; the circulating tower is arranged on the processing bracket, the horn circulating drainage tube is connected to the circulating tower and the concave inclined transport block 1, a plurality of circulating cylinder inner boxes are uniformly inserted and arranged on the inner side of the circulating tower, a plurality of return-shaped drainage blocks 1011 are respectively connected to a plurality of circulating cylinder inner boxes and crushing and grinding boxes, a plurality of circulating driving shafts are respectively inserted and arranged on a plurality of circulating cylinder inner boxes and the crushing and grinding boxes, a plurality of rotating scraping blades are respectively arranged on a plurality of rotating driving shafts, a pair of circulating gear sets are respectively arranged on a plurality of circulating driving shafts, the driving ends of the pair of circulating driving machines are respectively connected to the pair of circulating gear sets; the crushing and grinding structure comprises: a plurality of horn-type current limiting block circulating gear sets; 3001. a plurality of pulverizing rollers 3002, a plurality of grinding rollers 3003, a grinding cylinder block 3004, a pair of arc grinding blocks 3005, a rectangular lifting support block 3006, two pairs of lifting grinding threaded rods 3007, two pairs of lifting grinding threaded pipes 3008, lifting grinding gear sets and lifting grinding driving machines; a plurality of horn-shaped current limiting block circulating gear sets; 3001 are uniformly arranged on the crushing and grinding box, a plurality of crushing rollers 3002 and a plurality of grinding rollers 3003 are uniformly arranged on the inner side of the crushing and grinding box, and a plurality of crushing rollers 3002 and a plurality of grinding rollers 3003 are positioned on a plurality of horn-shaped flow-limiting block circulation gear sets; 3001, wherein the grinding cylindrical block 3004 is inserted into the inner side of the grinding and pulverizing box through a bearing, the square lifting supporting block 3006 is mounted in the grinding and pulverizing box, and two pairs of lifting grinding threaded rods 3007 are inserted into the square lifting supporting block 3006 and the horn-shaped current limiting block circulation gear set through bearings; 3001, two pairs of lifting grinding threaded pipes 3008 are respectively inserted on a pair of arc grinding blocks 3005, two pairs of lifting grinding threaded pipes 3008 are respectively sleeved on a pair of lifting grinding threaded rods 3007, lifting grinding gear sets are mounted on the two pairs of lifting grinding threaded rods 3007, and the driving end of the lifting grinding driving machine is connected to the lifting grinding gear sets; a plurality of cover-mounted sleeve boxes are arranged on the processing bracket; a pair of the circular arc grinding blocks 3005 and the horn-shaped current limiting block circulation gear set; two pairs of L-shaped sealing rubber strips are arranged on the 3001; the three concave inclined transport blocks 1 are respectively provided with a pair of triangular drainage blocks; a plurality of return-shaped rotary limiting blocks are provided with replacement slotted holes, and a plurality of filtering and screening nets are respectively inserted into the inner sides of the replacement slotted holes in a sliding way; the bottom end of the L-shaped rotary discharging plate 1012 is provided with a drainage adhesive tape; a plurality of support shafts are arranged on the pair of concave inclined transport blocks 1; the concave inclined transportation block 1 is provided with an inflation tube and an inflation pump.
According to the attached figures 1-5, coal is poured into the inner side of a crushing and grinding box, crushed and ground through a crushing and grinding structure on the inner side of the crushing and grinding box, the crushed coal is guided to a belt conveyor 2 on a concave inclined conveying block 1, the crushed coal is conveyed to the inner side of a Y-shaped screening block 3 through the operation of the belt conveyor 2 on the concave inclined conveying block 1, the screened coal is screened through a screening structure on the Y-shaped screening block 3, the screened coal is stably guided on different concave inclined conveying blocks 1 through screening and guiding, the coal smaller than a certain size is stably guided through the belt conveyor 2 on the other concave inclined conveying block 1, the coal which is larger than a certain one-way is guided to the concave inclined conveying block 1 without the belt conveyor 2, the oversized coal is guided to the inner side of the crushing and grinding box through the circulating structure by the inclination of the concave inclined conveying block 1, the coal on the belt conveyor 2 on the concave inclined conveying block 1 is guided to the three circular arc limiting sheets on the inner side of the Y-shaped sieving block 3 through the feeding horn-shaped guiding block, the rotary driving cylinder block on the driving end of the rotary driving machine is driven to rotate by the operation of the rotary driving machine, the plurality of rotary limiting blocks on the rotary driving cylinder block are driven by the rotary driving cylinder block, the rotary horn-shaped rotary gathering block on the rotary limiting block is driven to rotate by the rotary driving cylinder block, thereby driving the coal on the inner side of the Y-shaped screening block 3 to rotationally screen, and simultaneously driving the coal to rotationally screen and drop downwards through a rotary screening net by inclined rotary screening, so that the coal is gathered to a circular arc screening plate and a horn-shaped rotary gathering block; 1010, a horn-shaped rotary collecting block is shaped back through an arc screening plate; 1010, the coal is split into different concave inclined transport blocks 1, so that the small transport and the large cyclic crushing are driven; the method comprises the steps that through a horn circulation drainage tube on the inner side of a concave inclined conveying block 1, oversized coal is drained to the inner side of a circulation cylindrical inner box on the inner side of a circulation tower through the horn circulation drainage tube, a pair of circulation driving machines are used for running to respectively drive a pair of circulation gear sets on driving ends of the circulation driving machines, a plurality of circulation driving shafts on the circulation driving machines are driven by the pair of circulation gear sets, a plurality of rotary scraping blades on the circulation driving shafts are driven by the plurality of circulation driving shafts, the coal is pushed to the inner side of a return-type drainage block 1011 one by one through the plurality of rotary scraping blades, the coal is drained in a rotary mode one by one through the return-type drainage block 1011, and then the circulated coal is drained to the inner side of a crushing grinding box; crushing coal by a crushing roller 3002, and circulating a gear set by a horn-shaped flow limiting block; 3001, guiding coal to between grinding drums 3003, grinding the coal through the cooperation of a plurality of grinding drums 3003, and then circulating a gear set through a horn-shaped flow limiting block; 3001 are led between the grinding cylindrical block 3004 and the pair of arc grinding blocks 3005, and are operated by the lifting grinding driving machine to drive the lifting grinding gear set on the driving end of the lifting grinding driving machine to operate, the lifting grinding threaded rod 3007 on the lifting grinding gear set is driven to rotate by the lifting grinding gear set, the lifting grinding threaded rod 3007 is used for driving the lifting grinding threaded pipe 3008 on the lifting grinding threaded rod 3008, the two pairs of lifting grinding threaded pipes 3008 are used for respectively driving the pair of arc grinding blocks 3005 on the lifting grinding threaded rod 3008 to vertically lift, and the distance between the pair of arc grinding blocks 3005 and the grinding cylindrical block 3004 is changed, so that the phenomenon of changing the grinding effect is driven.
The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.
Claims (10)
1. A thermal power coal conveying belt circulation screening device, comprising: the grinding and polishing device comprises three concave inclined conveying blocks, a pair of belt conveyors, a Y-shaped screening block, a processing bracket and a grinding and polishing box, and is characterized in that the three concave inclined conveying blocks are arranged on the processing bracket, the Y-shaped screening block is connected to the three concave inclined conveying blocks, the pair of belt conveyors are arranged on the three concave inclined conveying blocks, the grinding and polishing box is arranged on the processing bracket, a screening structure is arranged on the Y-shaped screening block, and a circulating structure is arranged on the concave inclined conveying blocks and the grinding and polishing box, and a grinding and polishing structure is arranged on the grinding and polishing structure;
The screening structure comprises: the device comprises a feeding horn-shaped drainage block, three circular arc limiting plates, a rotary driver, a rotary driving cylindrical block, a plurality of circular arc rotary limiting blocks, a plurality of filtering screening nets, a plurality of circular arc rotary blocks, a plurality of circular arc horn-shaped rotary collecting blocks, a pair of circular arc screening plates, a circular arc drainage block, an L-shaped rotary discharge plate, a rotary discharge shaft, a pair of circular arc rotary shaft pipes, a pair of circular arc rotary shaft rods, a pair of circular arc buffer sliding blocks and a pair of circular arc buffer springs;
The feeding horn-shaped drainage block is installed on the concave inclined transportation block, the circular arc limiting blocks are installed on the processing support and the Y-shaped screening block in a inserting mode, the rotary driving machine is installed on the processing support, the rotary driving cylindrical block is installed on the driving end of the rotary driving machine, the rotary driving cylindrical block is movably installed on the inner side of the circular arc limiting block in a inserting mode, the circular arc limiting blocks are installed on the rotary driving cylindrical block in a inserting mode, the filtering screening net is installed on the circular arc limiting blocks in a rotating mode, the circular arc limiting blocks are installed on the circular arc limiting blocks in a rotating mode respectively, the circular arc limiting blocks are installed on the upper end and the lower end of the circular arc limiting blocks in a rotating mode respectively, the circular arc limiting blocks are installed on the driving end of the rotary driving machine, the circular arc limiting blocks are installed on the inner side of the Y-shaped screening block and the concave inclined transportation block in a rotating mode, the circular arc limiting blocks are installed on the inner side of the rotary shaft, the circular arc limiting blocks are installed on the circular arc limiting blocks in a rotating mode, and the circular arc buffering blocks are connected on the inner side of the circular arc buffering blocks in a rotating mode, and the circular arc buffering shaft pipe is installed on the inner side of the circular arc buffering blocks respectively.
2. The thermal power coal conveying belt circulating and screening device according to claim 1, wherein the circulating structure comprises: the device comprises a horn circulation drainage tube, a circulation tower, a plurality of circulation cylindrical inner boxes, a plurality of return-shaped drainage blocks, a plurality of circulation driving shafts, a plurality of rotary scraping blades, a pair of circulation driving machines and a pair of circulation gear sets;
The circulating tower is arranged on the processing bracket, the horn circulating drainage tube is connected to the circulating tower and the concave inclined transportation block, a plurality of circulating cylinder inner boxes are uniformly inserted and mounted on the inner side of the circulating tower, a plurality of return-shaped drainage blocks are respectively connected to a plurality of circulating cylinder inner boxes and the crushing and grinding boxes, the circulating driving shafts are respectively inserted into the circulating cylindrical inner boxes and the crushing and grinding boxes, the rotating scraping blades are respectively arranged on the rotating driving shafts, the circulating gear sets are respectively arranged on the circulating driving shafts, and the driving ends of the circulating driving machines are respectively connected to the circulating gear sets.
3. The thermal power coal conveyor belt circulation screening device according to claim 2, wherein the crushing and grinding structure comprises: the grinding device comprises a plurality of horn-shaped current limiting blocks, a plurality of grinding rollers, a grinding cylindrical block, a pair of circular arc grinding blocks, a square lifting support block, two pairs of lifting grinding threaded rods, two pairs of lifting grinding threaded pipes, a lifting grinding gear set and a lifting grinding driver;
The utility model provides a grinding machine, including grinding box, grinding cylinder, lift screw thread pipe, lift grinding gear train, lift grinding machine drive end, lift grinding gear train, a plurality of loudspeaker type current-limiting block even install in on the grinding box is smashed to the loudspeaker type current-limiting block a plurality of grinding cylinder and a plurality of grinding cylinder even install in on smashing the grinding box, a plurality of grinding cylinder and a plurality of grinding cylinder are even install in the inboard of smashing the grinding box, a plurality of grinding cylinder and a plurality of grinding cylinder are just a plurality of grinding cylinder and a plurality of are located between the loudspeaker type current-limiting block, the lift cylinder block pass through the bearing cartridge in smash the inboard of grinding box, the lift supporting shoe install in two pairs of lift grinding screw thread pipe pass through the bearing cartridge in return shape lift supporting shoe and on the loudspeaker type current-limiting block, two pairs of lift grinding screw thread pipe respectively cartridge in a pair of circular arc grinding piece, and two pairs of lift grinding screw thread pipe respectively the suit in on the lift grinding screw thread rod, lift grinding gear train install in two pairs on the lift grinding screw thread rod, lift grinding drive end connect in on the lift grinding gear train.
4. A thermal power coal conveying belt circulating screening apparatus according to claim 3, wherein the processing support is provided with a plurality of cover-loading suitcases.
5. The cyclic screening device of a thermal power coal conveying belt according to claim 4, wherein two pairs of L-shaped sealing rubber strips are arranged on the pair of circular arc grinding blocks and the horn-shaped flow limiting block.
6. The thermal power coal conveying belt circulating screening apparatus according to claim 5, wherein the three concave inclined transport blocks are respectively provided with a pair of triangular drainage blocks.
7. The cyclic screening device of a thermal power coal conveying belt according to claim 6, wherein a plurality of replacement slotted holes are formed in the rotary limiting blocks in a shape of a circle, and a plurality of filtering and screening nets are respectively inserted into the inner sides of the replacement slotted holes in a sliding way.
8. The thermal power coal conveying belt circulating screening device according to claim 7, wherein a drainage rubber strip is arranged at the bottom end of the L-shaped rotary discharging plate.
9. The thermal power coal conveying belt circulating screening apparatus of claim 8, wherein a plurality of support shafts are arranged on a pair of concave inclined transport blocks.
10. The thermal power coal conveying belt circulating screening device according to claim 9, wherein the concave inclined conveying block is provided with an air charging pipe and an air charging pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410513955.0A CN118179718B (en) | 2024-04-26 | 2024-04-26 | A circulating screening device for coal conveyor belts in thermal power plants |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410513955.0A CN118179718B (en) | 2024-04-26 | 2024-04-26 | A circulating screening device for coal conveyor belts in thermal power plants |
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| CN118179718B CN118179718B (en) | 2026-04-24 |
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| CN112076834A (en) * | 2020-09-24 | 2020-12-15 | 湖南有色金属职业技术学院 | Straw is dustless crushing apparatus of integral type for recovery processing |
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| CN112619771A (en) * | 2020-12-11 | 2021-04-09 | 重庆金泰诺新材料技术有限公司 | Tail material collecting device is used in production and processing of environment-friendly sintered hollow brick |
| CN112675997A (en) * | 2020-12-09 | 2021-04-20 | 邱岁刚 | Coal chemical industry feeding device and operation method thereof |
| CN219580766U (en) * | 2022-11-11 | 2023-08-25 | 浙江湖州长湖实业有限公司 | Sand and stone crushing and screening equipment for mortar preparation |
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- 2024-04-26 CN CN202410513955.0A patent/CN118179718B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212820171U (en) * | 2020-08-03 | 2021-03-30 | 山东佰安瑞生物药业有限公司 | High-efficient shearing equipment of raw materials for phosphatidylserine preparation |
| CN112076834A (en) * | 2020-09-24 | 2020-12-15 | 湖南有色金属职业技术学院 | Straw is dustless crushing apparatus of integral type for recovery processing |
| CN112675997A (en) * | 2020-12-09 | 2021-04-20 | 邱岁刚 | Coal chemical industry feeding device and operation method thereof |
| CN112619771A (en) * | 2020-12-11 | 2021-04-09 | 重庆金泰诺新材料技术有限公司 | Tail material collecting device is used in production and processing of environment-friendly sintered hollow brick |
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