CN114653460B - Accumulated material type crushing and screening production line and screening method - Google Patents
Accumulated material type crushing and screening production line and screening method Download PDFInfo
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- CN114653460B CN114653460B CN202210448756.7A CN202210448756A CN114653460B CN 114653460 B CN114653460 B CN 114653460B CN 202210448756 A CN202210448756 A CN 202210448756A CN 114653460 B CN114653460 B CN 114653460B
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- 238000012216 screening Methods 0.000 title claims abstract description 236
- 239000000463 material Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 99
- 238000009825 accumulation Methods 0.000 claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B02C23/02—Feeding devices
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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
- B02C23/04—Safety devices
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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
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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
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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
- 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
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a material accumulation type crushing and screening production line and a screening method, wherein the material accumulation type crushing and screening production line comprises a first crushing and screening unit, a second crushing and screening unit, a third crushing and screening unit, a first screening unit and a second screening unit, wherein a first conveying belt is arranged between the lower part of an output port of the first crushing and screening unit and the upper part of an inlet of the second crushing and screening unit, a second conveying belt is arranged between the second crushing and screening unit and the third crushing and screening unit, a third conveying belt is arranged between the third crushing and screening unit and the first screening unit, and a fourth belt conveying belt is arranged between the first screening unit and the fifth crushing and screening unit; the stones are sequentially conveyed to a second crushing and screening unit and a third crushing and screening unit for crushing and screening after first crushing and primary crushing in the first crushing and screening unit; and then sequentially conveying the materials into a first screening unit and a second screening unit for screening, so that the functions of feeding, pre-screening, coarse crushing, medium crushing, fine crushing, screening and conveying are realized.
Description
Technical Field
The invention belongs to the technical field of stone crushing, and particularly relates to a material accumulation type crushing and screening production line and a screening method.
Background
The hard stone materials piled up in the sand mining and crushing sites are different in size, the materials are often required to be crushed and screened, a large amount of dust and soil are attached to the surfaces of the hard stone materials, the screening difficulty is high, and the conventional hard stone material crushing equipment at present comprises: jaw breaker (jaw breaker), impact breaker, composite breaker, cone breaker, remove crushing station and hammer breaker etc. and the structure of these hard stone crushing equipment is single relatively, and the production technology of these hard stone crushing production equipment is coarse, degree of automation is low, leads to quality and the output uncontrollable of grit production, and production unbalance, inefficiency can not circulate crushing and multilayer comprehensive screening to the stone that breaks, is difficult to form and realize a stone and breaks and screening production from small to big full automaticity, seriously influences the quality and the efficiency etc. of crushing screening, is difficult to adapt to processing operation demand under the large-scale hard stone environment.
Disclosure of Invention
The invention aims to provide a material accumulation type crushing and screening production line and a screening method, and the production line can realize the functions of feeding, pre-screening, coarse crushing, medium crushing, fine crushing, screening and conveying, so as to form a full-automatic crushing and screening production line for stones from large to small. In order to achieve the above purpose, the present invention adopts the following technical scheme:
according to one aspect of the invention, a material accumulation type crushing and screening production line is provided, the crushing and screening production line comprises a first crushing and screening unit, a second crushing and screening unit, a third crushing and screening unit, a first screening unit and a second screening unit, the first crushing and screening unit and the third crushing and screening unit are arranged in parallel left and right, the second crushing and screening unit and the first screening unit are arranged in parallel left and right, the second crushing and screening unit is positioned in front of the rear side of the first crushing and screening unit, a vibrating feeding screen is obliquely arranged in front of the feed inlet of the first crushing and screening unit, a right end outlet of the vibrating feeding screen is connected with the feed inlet of the first crushing and screening unit, the first screening unit is positioned in front of the rear side of the third crushing and screening unit, the first crushing and screening unit is provided with a first screening output port and a second screening output port, a feed inlet end of the first conveying belt is arranged below the first screening output port of the first crushing and screening unit, a discharge outlet of the first conveying belt is arranged between the first crushing and screening unit and the second conveying belt of the second crushing and screening unit, and the second crushing and screening unit is arranged between the first crushing and screening unit and the second conveying belt is arranged above the first crushing and the third crushing and screening unit.
Above-mentioned scheme is further preferred, is provided with the buffer hopper below the discharge end of first conveyer belt, communicates respectively in the below of the lateral part discharge gate of buffer hopper and is provided with a plurality of ponds hoppers, first crushing screening unit is jaw crusher, third crushing screening unit is the dual-trans breaker, the second crushing screening unit comprises a plurality of jaw crusher, and the bottom discharge gate below of every ponds hopper sets up a jaw crusher, is provided with the buffer conveyer belt in the below of every jaw crusher, and the discharge end of this buffer conveyer belt links up with the pan feeding end of second conveyer belt.
The jaw crusher set is characterized in that the jaw crusher set comprises a jaw crusher set body, wherein the jaw crusher set body is provided with a jaw crusher set body, and the jaw crusher set body is provided with a jaw crusher set body.
The above scheme is further preferable that a receiving hopper is arranged above the inlet at the left end of the vibrating feeding screen, a second finished product conveying belt is arranged below the first crushing and screening unit, and a feeding belt of the second finished product conveying belt is positioned below the feeding end of the first conveying belt.
Above-mentioned scheme is still preferable, first screening unit is two-layer vibrating screen machine, is provided with the returning charge area between the upper vibration screen discharge end and the second conveyer belt of first screening unit, and the discharge end of every layer of vibrating screen below the upper strata is provided with the second finished product conveyer belt respectively.
The scheme is further preferable, the second screening unit comprises a platform ladder assembly and three layers of vibrating screening machines obliquely arranged on the platform ladder assembly, and a third finished product conveying belt is respectively arranged at the discharge end of each layer of vibrating screening machine; the three-layer vibration screening machine comprises a vibration box body, a motor, a first layer of screen body, a second layer of screen body and a third layer of screen body which are obliquely arranged in the vibration box body from top to bottom respectively, wherein a front supporting plate and a rear supporting column are respectively arranged on the outer walls of the two sides of the front end and the rear end of the vibration box body, rubber springs are respectively arranged at the lower ends of the front supporting plate and the rear supporting column, the rubber springs are connected on a platform ladder assembly, a vibrator is arranged on the side wall of the middle part close to the vibration box body, the motor is arranged on the outer side of the vibrator, the motor is fixed on the platform ladder assembly through a buffer bracket, and an output shaft of the motor is in transmission connection with the vibrator.
Above-mentioned scheme is further preferred, is provided with the lift adjustment support column in the front end of vibration box and the below that is located the backup pad, and the lower extreme of this lift adjustment support column is fixed on the platform cat ladder assembly, the lower extreme of preceding backup pad passes through rubber spring to be fixed on the top of lift adjustment support column.
The above scheme is further preferable, a guide cylinder is arranged at the rear end of the vibration box body, bending guide channels respectively communicated with the first layer of screen body, the second layer of screen body and the third layer of screen body are divided in the guide cylinder, a guide pipe is respectively arranged at the outlet of the tail end of each bending guide channel, and a discharge hopper is arranged at the bottom end of the three layers of screen bodies.
According to another aspect of the present invention, the present invention provides a screening method of a material accumulation type crushing and screening production line, including the steps of:
step one: loading the collected stones on a vibrating feeding screen for pre-screening feeding, conveying the screened powder to a designated position, and enabling the rest stones to slide from the right end outlet of the vibrating feeding screen into a first crushing and screening unit for primary crushing and primary crushing;
step two: aggregate obtained through primary vibration screening falls into a feeding end of a first conveying belt, is conveyed to the upper part of a buffer hopper through the first conveying belt and falls into the buffer hopper, the primary screened aggregate is shunted by each discharging hole at the side part of the buffer hopper and falls into a corresponding accumulating hopper, and the aggregate is buffered and shunted by a material guide plate in the accumulating hopper and falls into a corresponding jaw crusher group for jaw crushing, so that automatic secondary crushing is realized, and secondary blanking is obtained;
step three: completing secondary crushing of the aggregate in a jaw crusher to obtain secondary blanking, buffering the secondary blanking to fall into a feeding end of a second conveying belt, conveying the secondary blanking into a third crushing and screening unit for counterattack crushing, automatically realizing third crushing to obtain tertiary blanking with smaller granularity, and uniformly conveying the tertiary blanking into the feeding end of the third conveying belt and conveying the tertiary blanking into a first screening unit for two-layer screening; the unqualified aggregate is returned into the second conveyer belt through the returning belt, and returned to the third crushing and screening unit through the second conveyer belt for cyclic crushing;
step four: the first screening unit screens to obtain a first layer of stones with the diameters of 25-63 mm, and the stones are conveyed to a designated position through a second finished product conveying belt; the residual stones are dropped to the feeding end of a fourth belt conveyer below by the vibrating screen, the fourth belt conveyer conveys the residual stones to a three-layer vibrating screen machine of a second screening unit for three-layer screening, the three-layer vibrating screen machine sequentially screens the residual stones into stones with the size of 20-25 mm, stones with the size of 10-20 mm, stones with the size of 5-10 mm and stones with the size of 0-5 mm, and the stones screened in each layer are respectively and sequentially conveyed to a finished product stacking area from large to small.
In summary, the invention adopts the technical scheme, and has the following technical effects:
(1) The crushing and screening production line can realize the functions of feeding, pre-screening, coarse crushing, medium crushing, fine crushing, screening and conveying, so that a full-automatic crushing and screening production line for stones from large to small is formed, the preliminary screening of dregs for stones can be realized, the working efficiency is increased, and unnecessary crushing is reduced.
(2) The crushing and screening production line can return the unqualified aggregate to the impact crusher set for cyclic impact crushing through the return material, so that multi-cyclic crushing and multi-level comprehensive screening are realized, and stone materials are crushed, screened and conveyed in a full production process to realize full-motion finished product crushing; and the crusher can be continuously and uniformly fed in the process of crushing and screening stones, so that the phenomenon of blockage in the crushing process of the crusher is avoided.
(3) When the stones are fed into the hopper, the stones piled in the hopper buffer the fed stones, and the stones are all in a material beating form and are not directly worn and impacted to the hopper, so that the stones are in a piled material feeding form with zero wear to equipment, and unnecessary wear to the hopper is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a batch crushing and screening line according to the present invention;
FIG. 2 is a schematic top view of a crushing and screening line of the present invention;
FIG. 3 is a schematic view of a second crushing and screening unit according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the buffer hopper of the present invention;
FIG. 5 is a schematic diagram of the structure of a second screening assembly of the present invention;
FIG. 6 is a schematic illustration of a three-layer vibratory screening machine of the present invention;
FIG. 7 is a schematic cross-sectional view of a three-layer vibratory screening machine of the present invention;
in the drawing, a first crushing screening machine 1, a second crushing screening machine 2, a third crushing screening machine 3, a first screening machine 4, a second screening machine 5, a second conveyor belt 7, a third conveyor belt 8, a fourth belt conveyor belt 9, a vibrating feed screen 10, a receiving hopper 11, a second product conveyor belt 12, a jaw crusher 20, a buffer conveyor belt 21, a jaw crusher hopper 22, a return belt 40, a second product conveyor belt 41, a platform ladder assembly 50, a three-layer vibrating screen 51, a third product conveyor belt 52, a buffer hopper 61, a discharge port 62, a hopper 63, a guide plate 64, a vibrating box 510, a motor 511, a first layer screen 512, a second layer screen 513, a third layer screen 514, a front support plate 515, a rear support column 516, a rubber spring 517, a lifting adjustment support column 518, a guide cylinder 519, a bending guide passage 520, a guide pipe 521, a discharge hopper 522, a vibrator 5110, and a buffer bracket 5111.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
As shown in fig. 1 and 2, according to the present invention, a material accumulation type crushing and screening production line is provided, the crushing and screening production line includes a first crushing and screening unit 1, a second crushing and screening unit 2, a third crushing and screening unit 3, a first screening unit 4 and a second screening unit 5, the first crushing and screening unit 1 and the third crushing and screening unit 3 are arranged in parallel left and right, the second crushing and screening unit 2 and the first screening unit 4 are arranged in parallel left and right, the second crushing and screening unit 2 is located in front of the rear side of the first crushing and screening unit 1, a vibrating feeding screen 10 is obliquely arranged in front of the material inlet of the first crushing and screening unit 1, the right end outlet of the vibrating feeding screen 10 is connected with the material inlet of the first crushing and screening unit 1, the first screening unit 4 is located in front of the rear side of the third crushing and screening unit 3, the first crushing and screening unit 1 has a first screening output port and a second screening output port, a first conveyor belt 6 is arranged below the first screening output port of the first crushing and screening unit 1, the second crushing and screening unit 4 is arranged below the first crushing and screening unit 1 has a second conveyor belt 6 arranged below the first screening output port of the first crushing and the first screening unit 1 and a second screening unit 4 is arranged below the first conveyor belt 4 and a second conveying belt 4 is arranged below the first conveying port of the first screening unit 4 and a second screening unit 4 is arranged between the first conveying belt and a material inlet of the second conveying unit 4 and a third material inlet of the second screening unit has a material inlet is arranged. Feeding the collected stones to a vibrating feeding screen 10 above a first crushing and screening unit 1 through an excavator, a loader or an automatic unloading vehicle for vibrating pre-selection screening, conveying silt and silt powder to a specified position through powder screened out by the vibrating feeding screen 10, so as to remove the silt powder in the stones, recycling and fully utilizing the silt powder, conveying the stones sent out by the vibrating feeding screen 10 to the first crushing and screening unit 1 for first crushing and screening, crushing the stones to 1050mm, and conveying the stones subjected to first crushing and screening to a specified stone storage area by a first finished product conveying belt 12; the rest stones are conveyed to the second crushing and screening unit 2 by the first conveying belt 6 for separation treatment and then jaw crushing, the stones crushed by the second crushing and screening unit 2 are conveyed to the third crushing and screening unit 3 by the second conveying belt 7 for impact crushing, so that automatic secondary crushing is realized, the stones fall into the third conveying belt 8 after the secondary crushing is finished and are conveyed into the first screening unit 4 for two-layer screening, stones with three particle sizes are screened out, and the first layer of screening out unqualified aggregates (stones with the first particle size) returns to the second crushing and screening unit 2 for cyclic impact crushing by the material returning belt 41; the second layer of stones (stones with the second grain size) with the grain size of 25-63 mm are screened out and conveyed to a designated position by a second finished product conveying belt 40; the rest stones (stones with the third grain size) are discharged to a fourth belt conveyer 9, and then are conveyed to a second screening unit 5 by the fourth belt conveyer 9 to be screened in three layers, stones with four grain sizes are screened out, and stones with four grain sizes are respectively conveyed to a finished product area.
In the invention, a receiving hopper 11 is arranged above the left end inlet of a vibrating feeding screen 10, a second finished product conveying belt 12 is arranged below a first crushing screening unit 1, a feeding belt of the second finished product conveying belt 12 is arranged below the feeding end of a first conveying belt 6, a buffer hopper 61 is arranged below the discharging end of the first conveying belt 6, a plurality of accumulating hoppers 63 are respectively communicated below side discharging holes 62 of the buffer hopper 61, the first crushing screening unit 1 is a jaw crusher, the third crushing screening unit 3 is a double-trans crusher, the second crushing screening unit 2 consists of a plurality of jaw crusher units 20, four jaw crusher units 20 are respectively arranged to collect stones sent out by the buffer hopper 61, a jaw crusher unit 20 is arranged below the bottom discharging hole of each jaw crusher unit 62, a buffer conveying belt 21 is arranged below each jaw crusher unit 20, and the discharging end of the buffer conveying belt 21 is connected with the feeding end of the second conveying belt 7; a jaw breaker hopper 22 is provided at the upper end of the jaw breaker unit 20, and a guide plate 64 is provided in the hopper 63, the guide plate 64 extending obliquely downward from the hopper 63 onto the jaw breaker hopper 22. The first screening unit 4 is a two-layer vibrating screening machine, a material returning belt 40 is arranged between the discharge end of the upper-layer vibrating screen of the first screening unit 4 and the second conveying belt 7, and a first finished product conveying belt 41 is respectively arranged at the discharge end of each layer of vibrating screen below the upper layer; after the collected stones are conveyed into the receiving hopper 11 to be buffered and slide down onto the vibrating feeding screen 10 to be vibrated and pre-screened, the stones which slide down from the right side outlet of the vibrating feeding screen 10 are conveyed into the first crushing screening machine set 1 to be crushed in a jaw type for the first time, the stones which slide down from the first screening machine set 20 are conveyed to a finished product area through the first finished product conveying belt 41, the rest stones are conveyed to the feeding end of the first conveying belt 6 and conveyed into the buffer hopper 61 to be buffered, two discharging holes 62 are arranged on the side of the buffer hopper 61, the stones which slide down from the two discharging holes 62 on the side of the buffer hopper 61 are conveyed into the corresponding accumulating hopper 63 to be piled up, the stones in the material guide plate 64 of each accumulating hopper 63 are automatically slid down and split and conveyed out into the two jaw type crushing machines 20 for the second jaw type crushing, the material hopper 63 adopts a stacking self-weight sliding manner to be conveyed into the feeding hopper of the jaw type crushing machine set 20, so that a plurality of layers are formed, the aggregates which slide down from each jaw type crushing machine set 20 to the second conveying belt 7 are crushed, the aggregates slide down from the second conveying belt 7 to the second conveying belt 7 are not screened, and the aggregates fall into the third screening machine set 3 to be screened in a small size, and the second screening machine set is carried out in the third screening machine set and the second screening machine set is finished, and the aggregates are automatically screened in the size and the size of the second screening machine set is no for the second screening.
In the invention, the second screening unit 5 comprises a platform ladder assembly 50 and three layers of vibration screening machines 51 obliquely arranged on the platform ladder assembly, and a second finished product conveying belt 52 is respectively arranged at the discharge end of each layer of vibration screening machine 51; the three-layer vibration screening machine 51 comprises a vibration box 510, a motor 511, a first layer of screen 512, a second layer of screen 513 and a third layer of screen 514 which are respectively arranged in the vibration box 510 in an inclined manner from top to bottom, wherein a front supporting plate 515 and a rear supporting column 516 are respectively arranged on the outer walls of the two sides of the front end and the rear end of the vibration box 510, rubber springs 517 are respectively arranged at the lower ends of the front supporting plate 515 and the rear supporting column 516, the rubber springs 517 are connected to a platform ladder assembly 50, a vibrator 5110 is arranged on the side wall close to the middle of the vibration box 510, the motor 511 is arranged at the outer side of the vibrator 5110, the motor 511 is fixed to the platform ladder assembly 50 through a buffer bracket 5111, and the output shaft of the motor 511 is in transmission connection with the vibrator 5110; a lifting adjusting support column 518 is arranged at the front end of the vibration box 510 and below the support plate 515, the lower end of the lifting adjusting support column 518 is fixed on the platform ladder assembly 50, the lower end of the front support plate 515 is fixed at the top end of the lifting adjusting support column 518 through a rubber spring 517, and the height of the feeding end side of the vibration box 510 is adjusted by adjusting the height of the lifting adjusting support column 518, so that the inclination of the vibration box 510 is changed. A guide cylinder 519 is arranged at the rear end of the vibration box body 510, a bending guide channel 520 which is respectively communicated with the first layer of screen body 512, the second layer of screen body 513 and the third layer of screen body 514 is divided in the guide cylinder 519, a guide pipe 521 is respectively arranged at the tail end outlet of each bending guide channel 520, a discharge hopper 522 is arranged at the bottom end of the three layers of screen bodies 514, and 0-5 mm stone screened by the three layers of screen bodies 514 is conveyed from the discharge hopper 522 to a corresponding finished product area; the motor 511 drives the vibrator to vibrate during operation, the vibration box 510 is driven to vibrate back and forth on the rubber spring 517, stone conveyed by the fourth belt conveyor 9 is firstly subjected to vibration screening on the first layer of screen 512, 20-25 mm stone is screened out by the first layer of screen 512, and stone with the size greater than 25mm is discharged from the surface of the first layer of screen 512 into the corresponding bending material guide channel in a vibrating manner and is conveyed to the corresponding finished product area. When the motor 511 drives the vibrator 5110 to vibrate, the vibration box 510 is driven to vibrate back and forth in the horizontal direction, so that stones conveyed by the fourth belt conveyor 9 are firstly subjected to primary vibration screening by the first layer of screen 512 with the diameter of 20-25 mm in the vibration box 510, stones with the diameter of more than 25mm are sent out from the tail end discharge holes of the first layer of screen 512 and slide down along the corresponding guide cylinders 519, stones with the diameter of less than 20-25 mm fall down to the second layer of screen 513 to be screened, then stones with the diameter of 5-10 mm are screened by the second layer of screen 513, stones with the diameter of 0-5 mm are screened by the third layer of screen 514, and stones with the diameter of 10-20 mm and stones with the diameter of 5-10 mm are respectively slid down from the tail end outlet of the corresponding bending guide channels 520, so that stones are conveyed to the corresponding stone product areas to be piled. When the motor 511 drives the vibrator 5110 to vibrate, the vibrating box 510 and the screen in the box are driven to vibrate together, and the three-layer screen hoppers distribute and guide materials into the corresponding bending guide channels 520 and slide along the guide pipes 521 to the corresponding conveying belts to be conveyed to the designated positions for stacking.
In the invention, the screening method of the broken stone by using the accumulated material type breaking and screening production line comprises the following steps:
step one: loading the collected stones to a feeding vibrating screen 10 to be pre-screened and fed on the vibrating feeding screen 10, conveying screened powder to a specified position, enabling the rest stones to be discharged from a right end outlet of the vibrating feeding screen 10 and slide into a first crushing and screening unit 1 to be crushed for the first time and crushed for the first time, completing feeding, pre-screening and coarse crushing of the stones, forming aggregate with the size of over 1050mm, and delivering aggregate with the size of less than 1050mm from 12;
step two: aggregate obtained through primary vibration screening falls into a feeding end of a first conveying belt 6, is conveyed to the upper part of a buffer hopper 61 through the first conveying belt 6 and falls into the buffer hopper 61, the primary screened aggregate is shunted by each discharging hole 62 at the side part of the buffer hopper 61 and falls into a corresponding accumulation hopper 63, and the aggregate is buffered and shunted by a material guide plate 64 in the accumulation hopper 63 and falls into a corresponding jaw crusher set 20 for jaw crushing, so that automatic secondary crushing is realized, secondary blanking is obtained, and stone with the size of more than 100mm is formed; the stones are conveyed to the feeding end of the first conveying belt 6 and conveyed into the buffer hopper 61 for collection, slide down by piling up into slopes and uniformly slide down into the piling up hopper 63 through the discharge holes 62 on the corresponding side for piling up into secondary blanking, and are distributed to the four jaw crusher units 20, wherein the discharge holes 62 on each side are uniformly distributed to the two jaw crusher units 20 for jaw crushing, and the crushed blanking is uniformly gathered and conveyed to the next procedure
Step three: completing secondary crushing of the aggregate in the jaw crusher unit 20 to obtain secondary blanking, buffering the secondary blanking to fall into a feeding end of the second conveyor belt 7, conveying the secondary blanking into the third crushing and screening unit 3 for counterattack crushing, automatically realizing third crushing to obtain tertiary blanking with smaller granularity, realizing aggregate fine crushing process to ensure that aggregate particles are not more than 63mm, uniformly conveying the tertiary blanking to the feeding end of the third conveyor belt 8, and conveying the tertiary blanking into the first screening unit 4 for two layers of screening; the unqualified aggregate is returned into the second conveyer belt 7 through the returning belt 40, and is returned to the third crushing and screening unit 3 through the second conveyer belt 7 for cyclic crushing;
step four: the first screening unit 4 screens the first layer of stones 25-63 mm and conveys the stones to a specified position through the first finished product conveying belt 41; the rest stones are dropped to the feeding end of the fourth belt conveyor 9 below by the vibrating screen, the fourth belt conveyor 9 conveys the rest stones into the three-layer vibrating screen 51 of the second screening unit 5 for three-layer screening, the three-layer vibrating screen 51 sequentially screens the rest stones into 20-25 mm stones, 10-20 mm stones, 5-10 mm stones and 0-5 mm stones, the stones screened on each layer are respectively and sequentially conveyed to a finished product stacking area from large to small, the grain sizes of the stones can be adjusted according to actual needs, and the actual demands of occasions on the grain sizes of various stones are realized.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. The utility model provides a broken and screening production line of long-pending material, broken and screening production line includes first broken screening unit, second broken screening unit, third broken screening unit, first screening unit and second screening unit, its characterized in that: the first crushing and screening unit and the third crushing and screening unit are arranged in parallel left and right, the second crushing and screening unit and the first screening unit are arranged in parallel left and right, the second crushing and screening unit is positioned in front of the rear side of the first crushing and screening unit, a vibrating feeding screen is obliquely arranged in front of a feed inlet of the first crushing and screening unit, a right end outlet of the vibrating feeding screen is connected with the feed inlet of the first crushing and screening unit, the first screening unit is positioned in front of the rear side of the third crushing and screening unit, the first crushing and screening unit is provided with a first screening output port and a second screening output port, a first conveying belt is arranged below the first screening output port of the first crushing and screening unit, a discharge end of the first conveying belt is obliquely upwards extended to the upper side of an inlet of the second crushing and screening unit from below the first screening output port, a second conveying belt is arranged between the discharge port of the second crushing and screening unit and the feed inlet of the third crushing and screening unit, and a belt is arranged between the discharge port of the third crushing and screening unit and the third conveying belt is arranged between the first conveying unit and the first conveying belt;
a buffer hopper is arranged below the discharge end of the first conveying belt, a plurality of accumulation hoppers are respectively communicated below the discharge holes of the side parts of the buffer hopper, a material guide plate is arranged in the accumulation hopper, the first crushing and screening unit is a jaw crusher, the third crushing and screening unit is a double-trans crusher, the second crushing and screening unit consists of a plurality of jaw crusher units, a jaw crusher unit is arranged below the discharge hole of the bottom end of each accumulation hopper, a buffer conveying belt is arranged below each jaw crusher unit, and the discharge end of each buffer conveying belt is connected with the feed end of the second conveying belt;
the second screening unit comprises a platform ladder assembly and three layers of vibration screening machines obliquely arranged on the platform ladder assembly, and a third finished product conveying belt is respectively arranged at the discharge end of each layer of vibration screening machine; the three-layer vibrating screen grader comprises a vibrating box body, a motor, a first layer of screen body, a second layer of screen body and a third layer of screen body which are obliquely arranged in the vibrating box body from top to bottom respectively, wherein a front supporting plate and a rear supporting column are respectively arranged on the outer walls of the two sides of the front end and the rear end of the vibrating box body, rubber springs are respectively arranged at the lower ends of the front supporting plate and the rear supporting column, the rubber springs are connected to a platform ladder assembly, a vibrator is arranged on the side wall of the middle part close to the vibrating box body, the motor is arranged on the outer side of the vibrator, the motor is fixed on the platform ladder assembly through a buffer bracket, and an output shaft of the motor is in transmission connection with the vibrator;
the front end of the vibration box body and the lower part of the support plate are provided with lifting adjusting support columns, the lower ends of the lifting adjusting support columns are fixed on the platform ladder assembly, and the lower ends of the front support plates are fixed at the top ends of the lifting adjusting support columns through rubber springs.
2. A batch crushing and screening line according to claim 1, characterized in that: the jaw crusher is characterized in that a jaw crusher hopper is arranged at the upper end of the jaw crusher, and the guide plate extends downwards to the jaw crusher hopper from the inner side of the accumulation hopper in an inclined manner.
3. A batch crushing and screening line according to claim 1, characterized in that: a receiving hopper is arranged above the inlet at the left end of the vibrating feeding screen, a second finished product conveying belt is arranged below the first crushing and screening unit, and a feeding belt of the second finished product conveying belt is positioned below the feeding end of the first conveying belt.
4. A batch crushing and screening line according to claim 1, characterized in that: the first screening unit is a two-layer vibrating screen machine, a returning belt is arranged between the discharge end of the upper-layer vibrating screen of the first screening unit and the second conveying belt, and the discharge end of each layer of vibrating screen below the upper layer is respectively provided with the second finished product conveying belt.
5. A batch crushing and screening line according to claim 1, characterized in that: the rear end of the vibration box body is provided with a guide cylinder, a bending guide channel which is respectively communicated with the first layer of screen body, the second layer of screen body and the third layer of screen body is divided in the guide cylinder, a guide pipe is respectively arranged at the outlet of the tail end of each bending guide channel, and a discharge hopper is arranged at the bottom end of the three layers of screen bodies.
6. A screening method using a batch crushing and screening line according to any one of claims 1 to 5, comprising the steps of:
step one: loading the collected stones on a vibrating feeding screen for pre-screening feeding, conveying the screened powder to a designated position, and enabling the rest stones to slide from the right end outlet of the vibrating feeding screen into a first crushing and screening unit for primary crushing and primary crushing;
step two: aggregate obtained through primary vibration screening falls into a feeding end of a first conveying belt, is conveyed to the upper part of a buffer hopper through the first conveying belt and falls into the buffer hopper, the primary screened aggregate is shunted by each discharging hole at the side part of the buffer hopper and falls into a corresponding accumulating hopper, and the aggregate is buffered and shunted by a material guide plate in the accumulating hopper and falls into a corresponding jaw crusher group for jaw crushing, so that automatic secondary crushing is realized, and secondary blanking is obtained;
step three: completing secondary crushing of the aggregate in a jaw crusher to obtain secondary blanking, buffering the secondary blanking to fall into a feeding end of a second conveying belt, conveying the secondary blanking into a third crushing and screening unit for counterattack crushing, automatically realizing third crushing to obtain tertiary blanking with smaller granularity, and uniformly conveying the tertiary blanking into the feeding end of the third conveying belt and conveying the tertiary blanking into a first screening unit for two-layer screening; the unqualified aggregate is returned into the second conveyer belt through the returning belt, and returned to the third crushing and screening unit through the second conveyer belt for cyclic crushing;
step four: the first screening unit screens to obtain a first layer of stones with the diameters of 25-63 mm, and the stones are conveyed to a designated position through a second finished product conveying belt; the residual stones are dropped to the feeding end of a fourth belt conveyer below by the vibrating screen, the fourth belt conveyer conveys the residual stones to a three-layer vibrating screen machine of a second screening unit for three-layer screening, the three-layer vibrating screen machine sequentially screens the residual stones into stones with the size of 20-25 mm, stones with the size of 10-20 mm, stones with the size of 5-10 mm and stones with the size of 0-5 mm, and the stones screened in each layer are respectively and sequentially conveyed to a finished product stacking area from large to small.
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