CN108855548B - Stone production machine-made sand production system - Google Patents
Stone production machine-made sand production system Download PDFInfo
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- CN108855548B CN108855548B CN201810761515.1A CN201810761515A CN108855548B CN 108855548 B CN108855548 B CN 108855548B CN 201810761515 A CN201810761515 A CN 201810761515A CN 108855548 B CN108855548 B CN 108855548B
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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
- B02C23/08—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a stone production machine-made sand production system which comprises a feeding hopper type elevator, a sand making buffer bin, an electrohydraulic gate, a sand making variable-frequency speed regulation feeding scraper conveyor, a sand making feeding hopper type elevator, a sand making machine feeding chute, a sand making machine, two sand making machine lower chutes, a vibration distributor chute, a sand making vibration sieve upper dust collecting cover, a dust collecting port, a pre-sieve chute, a undersize funnel, a pre-sieve scraper machine, a feeding three-way chute, an undersize scraper conveyor chute, a finished product bucket type elevator chute, a powder selecting machine, a finished product sand chute, a finished product sand planetary discharger, a finished product sand scraper machine front chute, a finished product abrasive belt conveyor, an ash powder chute, an ash powder planetary discharger and an ash powder belt conveyor. The invention adopts the building type arrangement, reduces the occupied area, is convenient for dust collection of the dust collector, adopts the intelligent system to control the whole machine-made sand production system, and improves the production capacity and the quality of finished sand.
Description
1. Technical field:
the invention relates to a machine-made sand production system, in particular to a machine-made sand production system for stone production, and belongs to the technical field of stone production.
2. The background technology is as follows:
the machine-made sand is rock, mine tailings or industrial waste residue particles with the particle size smaller than 4.75 mm, which are prepared by mechanical crushing and screening, and are commonly called machine-made sand. The machine-made sand production line is divided into two processes of dry sand making and wet sand making according to the processes. The wet sand making production line utilizes a sand washer to clean mud powder and stone powder in the sand, is limited by water resources, and breaks the reasonable grading of machine-made sand after the stone powder is washed off, so that resource waste is caused. Main equipment of the dry sand production line comprises a sand making machine, a vibrating screen, a powder selecting machine, a dust remover and the like, and compared with wet sand making, the dry sand production line gets rid of the limit of the environment, has better grading and is more environment-friendly. At present, the dry method sand gets rid of environmental limitation, the machine-made sand is well-graded, which is more beneficial to environmental protection, and is not limited by water source and environment, and the machine-made sand production line is widely put into use all over the country.
In the machine-made sand production system in the prior art, stone with the grain size smaller than 50 mm is generally adopted to enter a sand making machine for crushing, stone crushed by the sand making machine enters a vibrating screen for screening, stone with the grain size smaller than 4.75 mm enters a powder selecting machine for selecting powder, finished sand meeting the grading requirement enters a finished sand bin, ash powder not meeting the grading requirement enters an ash powder bin, and stone with the grain size larger than 4.75 mm enters the sand making machine for crushing again. And meanwhile, dust is collected at the transfer point and the vibrating screen by using a dust remover. The machine-made sand production system in the prior art has the defects of more transfer equipment, large occupied area and unstable quality of finished sand because the quantity of raw materials entering the sand making machine cannot be automatically controlled according to the size of the return material quantity (stone material larger than 4.75 mm) of the vibrating screen.
3. The invention comprises the following steps:
the technical problems to be solved by the invention are as follows: the system has the advantages that the defects of the prior art are overcome, the system is arranged in a building mode, the intelligent system is used for controlling the whole system, and high-quality machine-made sand can be produced according to grading requirements.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the sand production system comprises a feeding hopper type elevator, a sand production buffer bin, an electrohydraulic gate, a sand production variable-frequency speed regulation feeding scraper conveyor, a sand production feeding hopper type elevator, a sand production machine feeding chute, a sand production machine first lower chute, a sand production machine second lower chute, a vibration distributor chute, a sand production vibration sieve upper dust collection cover, a dust collection port, a pre-sieve chute, a pre-sieve hopper, a pre-sieve scraper machine, a feeding three-way chute, a undersize scraper conveyor, an undersize scraper conveyor chute, a finished product bucket type elevator chute, a powder selecting machine, a finished product sand chute, a finished product sand planetary discharger, a finished product sand scraper machine pre-scraper chute, a finished product sand belt conveyor, a dust chute, a dust planetary discharger and a dust belt conveyor;
the feeding hopper type elevator is connected with a feed inlet of the sand making buffer bin through a feed outlet chute through a flange; the discharge port of the sand making buffer bin is connected with an electrohydraulic gate through a flange, and the discharge port of the electrohydraulic gate is connected with the feed port of the sand making variable-frequency speed-regulating feeding scraper conveyor through a flange; the discharge port of the sand making variable-frequency speed-regulating feeding scraper conveyor is connected with the feed port of a feeding three-way chute on the feed port of the sand making feeding hopper type elevator through a flange, the discharge port of the sand making feeding hopper type elevator is connected with the feed port of the sand making machine through a flange, and the discharge port of the feed chute of the sand making machine is connected with the feed port of the sand making machine through a flange; the lower parts of the two discharge ports of the sand making machine are respectively connected with a first lower chute of the sand making machine and a second lower chute of the sand making machine through flanges, and the discharge ports of the first lower chute of the sand making machine and the second lower chute of the sand making machine are respectively connected with the two feed inlets of the vibration distributing machine through soft connection; the discharge port of the vibration distributor is connected with the chute of the vibration distributor through flexible connection, and the discharge port of the chute of the vibration distributor is connected with the feed port on the dust collection cover on the sand making vibrating screen through a flange; the dust collecting cover on the sand making vibrating screen is arranged on the sand making vibrating screen, the dust collecting cover on the sand making vibrating screen is connected with the sand making vibrating screen through soft connection, a discharge port of the sand making vibrating screen is correspondingly provided with a pre-screen chute, the discharge port of the pre-screen chute is connected with a feed port of a pre-screen scraper machine through a flange, and the discharge port of the pre-screen scraper machine is connected with the other feed port of the feeding three-way chute on the feed port of the sand making feeding hopper type elevator through a flange;
the lower part of the sand making vibrating screen is correspondingly provided with an undersize hopper, the sand making vibrating screen is connected with the undersize hopper through a soft connection, a discharge port of the undersize hopper is connected with a feed port of an undersize scraper conveyor through a flange, and a discharge port of the undersize scraper conveyor is connected with a feed port of a finished product bucket elevator through a flange; the discharging port of the finished product bucket elevator is connected with the feeding port of the chute of the finished product bucket elevator through a flange, the discharging port of the chute of the finished product bucket elevator is connected with the feeding port of the powder selecting machine through a flange, the discharging port of the chute of the finished product sand of the powder selecting machine is connected with the feeding port of the planetary discharger of the finished product sand through a flange, the discharging port of the planetary discharger of the finished product sand is connected with the feeding port of the scraper machine of the finished product sand through a flange, and the discharging port of the scraper machine of the finished product sand is connected with the guide chute on the belt conveyor of the finished product sand through the flange of the front chute of the scraper machine of the finished product sand; the ash outlet of the ash chute of the powder selecting machine is connected with the feed inlet of the ash planetary discharger through a flange, and the discharge outlet of the ash planetary discharger is connected with the guide chute on the ash belt conveyor through a flange.
The feeding hopper type elevator conveys raw materials into the sand making buffer bin, the raw materials are conveyed into the sand making feeding hopper type elevator through a feeding three-way chute by a sand making variable-frequency speed-regulating feeding scraper conveyor through an electrohydraulic gate of a discharge hole of the sand making buffer bin, and the raw materials are conveyed into a sand making machine for crushing through a sand making machine feeding chute connected with the discharge hole of the sand making feeding hopper type elevator; stone crushed by the sand making machine enters the vibration distributing machine through a first lower chute of the sand making machine and a second lower chute of the sand making machine, and is uniformly arranged on the vibrating screen through a chute of the vibration distributing machine and a feed inlet of a dust collecting cover on the sand making vibrating screen;
screening by a sand making vibrating screen, enabling stones larger than 4.75 mm to enter a pre-screen chute, conveying the stones to a sand making feeding hopper type elevator by a pre-screen scraper and a feeding three-way chute, and enabling the stones to enter a sand making machine again for crushing; screening by a sand making vibrating screen, enabling stones smaller than 4.75 mm to enter an undersize hopper, conveying stones smaller than 4.75 mm to a finished product bucket elevator by an undersize scraper conveyor, and enabling stones to enter a powder selector for powder selection by a finished product bucket elevator chute;
the stone material with the grain size less than 4.75 mm is selected by a powder selecting machine, the finished product sand meeting the grading requirement is transferred and conveyed to a finished product sand belt conveyor by a finished product sand belt conveyor through a finished product sand planetary discharger and a finished product sand scraper under a finished product sand chute, and the finished product sand is conveyed to a finished product sand silo for storage by the finished product sand belt conveyor; the stone with the grain size less than 4.75 mm is selected by a powder selecting machine, and the ash which does not meet the grading requirement enters an ash belt conveyor through an ash chute lower ash planetary discharger, and the ash belt conveyor conveys the ash into an ash bin for storage.
The sand making buffer bin is provided with a material level sensor, the starting and stopping of the feeding hopper type elevator are controlled through the material level sensor, when the set material level is not reached, the feeding hopper type elevator is started to convey materials into the sand making buffer bin, and when the set material level is reached, the starting of the sand making feeding hopper type elevator is stopped.
The pre-screening scraper machine adopts a weighing type feeding conveyor, and the speed of the sand making variable-frequency speed-regulating feeding scraper conveyor is automatically controlled according to the quantity of returned materials on the weighing type feeding conveyor through signals of a weighing instrument so as to control the feeding quantity of raw materials; when the return quantity of the weighing type feeding conveyor reaches the set upper limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor is automatically reduced through the output signal of the weighing instrument to reduce the feeding quantity, and when the return quantity of the weighing type feeding conveyor reaches the set lower limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor is automatically improved through the signal of the weighing instrument to increase the feeding quantity.
According to production needs, the sand making vibrating screen is provided with two layers of screen plates, the aperture of the upper layer of screen plate is 5-20 mm, and the aperture of the lower layer of screen plate is 3-5 mm.
The invention adopts the building type arrangement, reduces the occupied area, is convenient for dust collection of a dust collector, adopts an intelligent system to control the whole machine-made sand production system, can fully exert the performance of the sand making machine, improves the production capacity and the quality of finished sand, is convenient for the modularized design of the machine-made sand production system, ensures that the machine-made sand production system is convenient for site construction while saving energy and protecting environment, reduces the cost, and provides important basis for the standardized construction of the machine-made sand production system.
4. Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a view in the K-direction in fig. 1.
5. The specific embodiment is as follows:
the invention is further illustrated and described below with reference to the accompanying drawings and specific examples:
referring to fig. 1 and 2, the names of the parts indicated by the respective serial numbers in the drawings are: the device comprises a feeding hopper type lifting machine 1, a sand making buffer bin 2, an electrohydraulic gate 3, a sand making variable-frequency speed-regulating feeding scraper conveyor 4, a sand making feeding hopper type lifting machine 5, a sand making machine feeding chute 6, a sand making machine 7, a sand making machine first lower chute 8, a sand making machine first lower chute 9, a vibration distributor 10, a vibration distributor chute 11, a sand making vibration sieve 12, a sand making vibration sieve upper dust collecting cover 13, a dust collecting port 13-1, a pre-sieve chute 14, a undersize hopper 15, a pre-sieve scraper conveyor 16, a feeding tee chute 17, a undersize scraper conveyor 18, a undersize scraper conveyor chute 18-1, a finished product hopper type lifting machine 19, a finished product hopper type lifting machine 20, a powder selecting machine 21, a finished product sand chute 22, a finished product sand planetary discharger 23, a finished product sand scraper 24, a finished product sand scraper conveyor 25, a front chute 26, a belt conveyor 27, a dust powder discharging hopper 28 and a dust belt conveyor 29.
Examples: the machine-made sand production system comprises a feeding hopper type lifting machine 1, a sand making buffer bin 2, an electrohydraulic gate 3, a sand making variable-frequency speed regulation feeding scraper conveyor 4, a sand making feeding hopper type lifting machine 5, a sand making machine feeding chute 6, a sand making machine 7, a sand making machine first lower chute 8, a sand making machine second lower chute 9, a vibration distributing machine 10, a vibration distributing machine chute 11, a sand making vibration sieve 12, a sand making vibration sieve upper dust collecting cover 13, a dust collecting port 13-1, a sieve front chute 14, a sieve lower hopper 15, a sieve front scraper 16, a feeding three-way chute 17, a sieve lower scraper conveyor 18, a sieve lower scraper conveyor chute 18-1, a finished product bucket type lifting machine 19, a finished product bucket type lifting machine 20, a powder selecting machine 21, a finished product sand chute 22, a finished product sand planetary discharger 23, a finished product sand scraper 24, a finished product sand scraper front chute 25, a finished product abrasive belt conveyor 26, a dust and a dust powder planetary discharger 28 and a dust belt conveyor 29.
The feeding hopper type elevator 1 is connected with a feed inlet of the sand making buffer bin 2 through a feed outlet chute by a flange; the discharge port of the sand making buffer bin 2 is connected with an electrohydraulic gate (3) through a flange, the discharge port of the electrohydraulic gate 3 is connected with the feed port of the sand making variable-frequency speed-regulating feeding scraper conveyor 4 through a flange, the discharge port of the sand making variable-frequency speed-regulating feeding scraper conveyor 4 is connected with the feed port of a feeding three-way chute 17 on the feed port of the sand making feeding hopper type lifter 5 through a flange, the discharge port of the sand making feeding hopper type lifter 5 is connected with a sand making machine feeding chute 6 through a flange, and the discharge port of the sand making machine feeding chute 6 is connected with the feed port of the sand making machine 7 through a flange; the lower parts of the two discharge ports of the sand making machine 7 are respectively connected with a first lower chute 8 of the sand making machine and a second lower chute 9 of the sand making machine through flanges, and the discharge ports of the first lower chute 8 of the sand making machine and the second lower chute 9 of the sand making machine are respectively connected with the two feed ports of the vibration distributing machine 10 through flexible connection; the discharge port of the vibration distributor 10 is connected with a vibration distributor chute 11 through flexible connection, the discharge port of the vibration distributor chute 11 is connected with a feed port on a dust collection cover 13 on a sand making vibrating screen through a flange, the dust collection cover 13 on the sand making vibrating screen is arranged on a sand making vibrating screen 12, the dust collection cover 13 on the sand making vibrating screen is connected with the sand making vibrating screen 12 through flexible connection, a pre-screen chute 14 is correspondingly arranged at the discharge port of the sand making vibrating screen 12, the discharge port of the pre-screen chute 14 is connected with a feed port of a pre-screen scraper 16 through a flange, and the discharge port of the pre-screen scraper 16 is connected with another feed port of a feeding three-way chute 17 on a feed port of a sand making feeding hopper type elevator 5 through a flange;
an undersize funnel 15 is arranged below the sand making vibrating screen 12 correspondingly, and the sand making vibrating screen 12 is connected with the undersize funnel 15 through flexible connection; the discharge port of the undersize hopper 15 is connected with the feed port of the undersize scraper conveyor 18 through a flange, and the discharge port of the undersize scraper conveyor 18 is connected with the feed port of the finished product bucket elevator 19 through a flange; the discharge port of the finished product bucket elevator 19 is connected with the feed port of the finished product bucket elevator chute 20 through a flange, the discharge port of the finished product bucket elevator chute 20 is connected with the feed port of the powder concentrator 21 through a flange, the discharge port of the finished product sand chute 22 of the powder concentrator 21 is connected with the feed port of the finished product sand planetary discharger 23 through a flange, the discharge port of the finished product sand planetary discharger 23 is connected with the feed port of the finished product sand scraper 24 through a flange, and the discharge port of the finished product sand scraper 24 is connected with the guide chute on the finished product sand belt conveyor 26 through the flange of the finished product sand scraper front chute 25; the ash outlet of the ash chute 27 of the powder concentrator 21 is connected with the feed inlet of the ash planetary discharger 28 through a flange, and the discharge outlet of the ash planetary discharger 28 is connected with the guide chute on the ash belt conveyor 29 through a flange.
During production, the feeding hopper type lifter 1 conveys raw materials into the sand making buffer bin 2, the raw materials are conveyed into the sand making feeding hopper type lifter 5 through the feeding three-way chute 17 by the electrohydraulic gate 3 at the discharge port of the sand making buffer bin 2 through the sand making variable-frequency speed-regulating feeding scraper conveyor 4, and the raw materials are conveyed into the sand making machine 7 for crushing through the sand making machine feeding chute 6 connected with the discharge port of the sand making feeding hopper type lifter 5; stone crushed by the sand making machine 7 enters the vibration material distributing machine 10 through a first lower chute 8 of the sand making machine and a second lower chute 9 of the sand making machine, and is uniformly distributed on the vibrating screen 12 through a chute 11 of the vibration material distributing machine and a feed inlet of a dust collecting cover 13 on the sand making vibrating screen;
screening by a sand making vibrating screen 12, enabling stones larger than 4.75 mm to enter a pre-screen chute 14, conveying the stones to a sand making feeding hopper type elevator 5 by a pre-screen scraper 16 and a feeding three-way chute 17, and enabling the stones to enter a sand making machine 7 again for crushing; screening by a sand making vibrating screen 12, enabling stones smaller than 4.75 mm to enter an undersize hopper 15, conveying stones smaller than 4.75 mm to a finished product bucket elevator 19 by an undersize scraper conveyor 18, and enabling stones to enter a powder selector 21 by a finished product bucket elevator chute 20 for powder selection;
the stones with the grain size smaller than 4.75 mm are selected by a powder selecting machine 21, the finished sand meeting the grading requirement is transferred and conveyed to a finished sand belt conveyor 26 by a finished sand planetary discharger 23 and a finished sand scraper 24 under a finished sand chute 22, and the finished sand is conveyed to a finished sand silo by the finished sand belt conveyor 26 for storage; the stones with the size smaller than 4.75 mm are selected by the powder selecting machine 21, and the ash which does not meet the grading requirement enters the ash belt conveyor 29 through the ash planetary discharger 28 below the ash chute 27, and the ash belt conveyor 29 conveys the ash into the ash bin for storage.
The sand making buffer bin 2 is provided with a material level sensor, the starting and stopping of the feeding hopper type elevator 1 are controlled through the material level sensor, when the set material level is not reached, the feeding hopper type elevator 1 is started to convey the material to the sand making buffer bin 2, and when the set material level is reached, the starting of the sand making feeding hopper type elevator 1 is stopped.
The pre-screening scraper 16 adopts a weighing type feeding conveyor, and the speed of the sand making variable-frequency speed-regulating feeding scraper conveyor 4 is automatically controlled according to the quantity of returned materials on the weighing type feeding conveyor through signals of a weighing instrument so as to control the feeding quantity of raw materials; when the return quantity of the weighing type feeding conveyor reaches the set upper limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor 4 is automatically reduced through the output signal of the weighing instrument to reduce the feeding quantity, and when the return quantity of the weighing type feeding conveyor reaches the set lower limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor 4 is automatically improved through the signal of the weighing instrument to increase the feeding quantity.
According to the production requirement, the sand making vibrating screen 12 is provided with two layers of screen plates, wherein the aperture of the upper layer of screen plate is 5-20 mm, and the aperture of the lower layer of screen plate is 3-5 mm.
The invention adopts the building type arrangement, reduces the occupied area, is convenient for dust collection of a dust collector, adopts an intelligent system to control the whole machine-made sand production system, can fully exert the performance of the sand making machine, improves the production capacity and the quality of finished sand, is convenient for the modularized design of the machine-made sand production system, ensures that the machine-made sand production system is convenient for site construction while saving energy and protecting environment, reduces the cost, and provides important basis for the standardized construction of the machine-made sand production system.
Claims (4)
1. A stone production mechanism sand production system which characterized in that: the stone production machine-made sand production system comprises a feeding hopper type lifting machine (1), a sand making buffer bin (2), an electrohydraulic gate (3), a sand making variable-frequency speed regulation feeding scraper conveyor (4), a sand making feeding hopper type lifting machine (5), a sand making machine feeding chute (6), a sand making machine (7), a sand making machine first lower chute (8), a sand making machine second lower chute (9), a vibration distributing machine (10), a vibration distributing machine chute (11), a sand making vibration sieve (12), a sand making vibration sieve upper dust collecting cover (13), a dust collecting port (13-1), a pre-sieve chute (14), a undersize hopper (15), a pre-sieve scraper machine (16), a feeding three-way chute (17), a undersize scraper conveyor (18-1), a finished product hopper type lifting machine chute (20), a powder selecting machine (21), a finished product sand chute (22), a finished product sand planetary discharger (23), a finished product sand scraper machine front (25), a finished product sand scraper belt conveyor (26), a powder scraper machine (27) and a powder scraper conveyor (29);
the feeding hopper type elevator (1) is connected with a feed inlet of the sand making buffer bin (2) through a feed outlet chute through a flange; the discharge port of the sand making buffer bin (2) is connected with the electrohydraulic gate (3) through a flange, and the discharge port of the electrohydraulic gate (3) is connected with the feed port of the sand making variable-frequency speed-regulating feeding scraper conveyor (4) through a flange; the discharge port of the sand making variable-frequency speed-regulating feeding scraper conveyor (4) is connected with the feed port of a feeding three-way chute (17) on the feed port of a sand making feeding hopper type lifter (5) through a flange, the discharge port of the sand making feeding hopper type lifter (5) is connected with a sand making machine feeding chute (6) through a flange, and the discharge port of the sand making machine feeding chute (6) is connected with the feed port of a sand making machine (7) through a flange; the lower parts of two discharge holes of the sand making machine (7) are respectively connected with a first lower chute (8) of the sand making machine and a second lower chute (9) of the sand making machine through flanges, and the discharge holes of the first lower chute (8) of the sand making machine and the second lower chute (9) of the sand making machine are respectively connected with two feed inlets of a vibration distributing machine (10) through soft connection; the discharge port of the vibration distributor (10) is connected with the chute (11) of the vibration distributor through flexible connection, and the discharge port of the chute (11) of the vibration distributor is connected with the feed port of the dust collection cover (13) on the sand making vibrating screen through a flange; the sand making vibrating screen is characterized in that a dust collection cover (13) is arranged on the sand making vibrating screen (12), the dust collection cover (13) on the sand making vibrating screen is connected with the sand making vibrating screen (12) through soft connection, a discharge port of the sand making vibrating screen (12) is correspondingly provided with a pre-screen chute (14), a discharge port of the pre-screen chute (14) is connected with a feed port of a pre-screen scraper (16) through a flange, and a discharge port of the pre-screen scraper (16) is connected with another feed port of a feeding three-way chute (17) on a feed port of a sand making feeding hopper type elevator (5) through a flange;
the lower surface of the sand making vibrating screen (12) is correspondingly provided with an undersize funnel (15), and the sand making vibrating screen (12) is connected with the undersize funnel (15) through soft connection; the discharge port of the undersize hopper (15) is connected with the feed port of the undersize scraper conveyor (18) through a flange, and the discharge port of the undersize scraper conveyor (18) is connected with the feed port of the finished product bucket elevator (19) through a flange; the discharging port of the finished product bucket elevator (19) is connected with the feeding port of the finished product bucket elevator chute (20) through a flange, the discharging port of the finished product bucket elevator chute (20) is connected with the feeding port of the powder selecting machine (21) through a flange, the discharging port of the finished product sand chute (22) of the powder selecting machine (21) is connected with the feeding port of the finished product sand planetary discharger (23) through a flange, the discharging port of the finished product sand planetary discharger (23) is connected with the feeding port of the finished product sand scraper (24) through a flange, and the discharging port of the finished product sand scraper (24) is connected with the guide chute on the finished product sand belt conveyor (26) through the flange of the chute (25) in front of the finished product sand scraper; the ash outlet of an ash chute (27) of the powder selecting machine (21) is connected with the feed inlet of an ash planetary discharger (28) through a flange, and the discharge outlet of the ash planetary discharger (28) is connected with a guide chute on an ash belt conveyor (29) through a flange;
the sand making buffer bin (2) is provided with a material level sensor, the starting and stopping of the feeding hopper type lifting machine (1) are controlled through the material level sensor, when the set material level is not reached, the feeding hopper type lifting machine (1) is started to convey materials into the sand making buffer bin (2), and when the set material level is reached, the starting of the sand making feeding hopper type lifting machine (1) is stopped.
2. The stone production machine-made sand production system of claim 1, wherein: the feeding hopper type lifter (1) conveys raw materials into a sand making buffer bin (2), an electrohydraulic gate (3) at a discharge hole of the sand making buffer bin (2) conveys raw materials into the sand making feeding hopper type lifter (5) through a feeding three-way chute (17) by a sand making variable-frequency speed-regulating feeding scraper conveyor (4), and a sand making machine feeding chute (6) connected with the discharge hole of the sand making feeding hopper type lifter (5) conveys raw materials into a sand making machine (7) for crushing; stone materials crushed by the sand making machine (7) enter the vibration material distributing machine (10) through a first lower chute (8) of the sand making machine and a second lower chute (9) of the sand making machine, and are uniformly distributed on the vibrating screen (12) through a chute (11) of the vibration material distributing machine and a feed inlet of a dust collecting cover (13) on the sand making vibrating screen;
screening by a sand making vibrating screen (12), enabling stones larger than 4.75 mm to enter a pre-screening chute (14), conveying the stones to a sand making feeding hopper type elevator (5) by a pre-screening scraper machine (16) and a feeding three-way chute (17), and enabling stones to enter a sand making machine (7) again for crushing; screening by a sand making vibrating screen (12), enabling stones smaller than 4.75 mm to enter an undersize hopper (15), conveying stones smaller than 4.75 mm to a finished product bucket elevator (19) by an undersize scraper conveyor (18), and enabling stones to enter a powder selecting machine (21) through a finished product bucket elevator chute (20) for powder selecting;
the stone with the grain size smaller than 4.75 mm is selected by a powder selecting machine (21), finished sand meeting the grading requirement is transferred and conveyed to a finished sand belt conveyor (26) by a finished sand planetary discharger (23) and a finished sand scraper (24) under a finished sand chute (22), and the finished sand is conveyed to a finished sand silo for storage by the finished sand belt conveyor (26); the stone with the grain size less than 4.75 mm is selected by a powder selecting machine (21), and the ash which does not meet the grading requirement enters an ash belt conveyor (29) through an ash planetary discharger (28) under an ash chute (27), and the ash belt conveyor (29) conveys the ash to an ash storage bin for storage.
3. The stone production machine-made sand production system of claim 1, wherein: the pre-screening scraper machine (16) adopts a weighing type feeding conveyor, and the speed of the sand making variable-frequency speed-regulating feeding scraper conveyor (4) is automatically controlled according to the quantity of returned materials on the weighing type feeding conveyor through signals of a weighing instrument so as to control the feeding quantity of raw materials; when the return quantity of the weighing type feeding conveyor reaches the set upper limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor (4) is automatically reduced through the output signal of the weighing instrument to reduce the feeding quantity, and when the return quantity of the weighing type feeding conveyor reaches the set lower limit, the running speed of the sand making variable-frequency speed-regulating feeding scraper conveyor (4) is automatically improved through the signal of the weighing instrument to increase the feeding quantity.
4. The stone production machine-made sand production system of claim 1, wherein: according to production needs, the sand making vibrating screen (12) is provided with two layers of screen plates, the aperture of the upper layer of screen plate is 5-20 mm, and the aperture of the lower layer of screen plate is 3-5 mm.
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| CN110180664A (en) * | 2019-07-03 | 2019-08-30 | 北京坚构创新科技有限公司 | Half final grinding system of one kind and method |
| CN110745403A (en) * | 2019-11-21 | 2020-02-04 | 陈彦鹏 | Intermittent automatic feeding device for sand field |
| CN111760667A (en) * | 2020-06-12 | 2020-10-13 | 南昌矿山机械有限公司 | Integral dry-process sand making system |
| CN112121971B (en) * | 2020-08-27 | 2022-06-10 | 三一汽车制造有限公司 | Sand making system and control method |
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| WO2014205990A1 (en) * | 2013-06-29 | 2014-12-31 | 浙江双金机械集团股份有限公司 | System for regulating the gradation of machine-made natural grit and method of manufacturing natural grit |
| CN206123945U (en) * | 2016-10-25 | 2017-04-26 | 上海砼力人工砂装备有限公司 | Three -dimensional system sand building |
| CN206913458U (en) * | 2017-04-06 | 2018-01-23 | 上海砼力人工砂装备有限公司 | Fine work sandstone aggregate processes three-dimensional building |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014205990A1 (en) * | 2013-06-29 | 2014-12-31 | 浙江双金机械集团股份有限公司 | System for regulating the gradation of machine-made natural grit and method of manufacturing natural grit |
| CN206123945U (en) * | 2016-10-25 | 2017-04-26 | 上海砼力人工砂装备有限公司 | Three -dimensional system sand building |
| CN206913458U (en) * | 2017-04-06 | 2018-01-23 | 上海砼力人工砂装备有限公司 | Fine work sandstone aggregate processes three-dimensional building |
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