CN110787890A - Dry sand making method - Google Patents
Dry sand making method Download PDFInfo
- Publication number
- CN110787890A CN110787890A CN201910820123.2A CN201910820123A CN110787890A CN 110787890 A CN110787890 A CN 110787890A CN 201910820123 A CN201910820123 A CN 201910820123A CN 110787890 A CN110787890 A CN 110787890A
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- crusher
- sand making
- drum
- sand
- screening
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- 239000004576 sand Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 45
- 238000012216 screening Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 44
- 239000002994 raw material Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 description 18
- 239000004575 stone Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/16—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs with milling members essentially having different peripheral speeds and in the form of a hollow cylinder or cone and an internal roller or cone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- 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
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention provides dry-method sand making equipment which can completely meet the use standard, and the dry-method sand making equipment comprises a feeding machine, a coarse crusher, a fine crusher, a sand making machine and a screening device, and also comprises negative-pressure dust collection equipment, wherein at least one of the feeding machine, the coarse crusher, the fine crusher, the sand making machine and the screening device of the negative-pressure dust collection equipment is provided with a dust collection port so as to conveniently absorb dust generated during the work of the negative-pressure dust collection equipment.
Description
Technical Field
The invention relates to a dry-method sand making method.
Background
The dry sand making production line is generally formed by combining a plurality of crushing devices, and comprises a feeder, a coarse and fine crusher, a sand making machine, a circular vibrating screen, a sand washing machine and the like, wherein logistics transmission between the devices is completed by a conveyer belt, and the sand making principle is as follows: the existing vertical shaft impact crusher has 2 types, namely a stone breaking stone series and a stone breaking iron series, and the 2 types belong to self-impact crushing. The "stone-beating" series is that one part of material is accelerated to a certain speed, another part of material is impacted, and the impact and vortex friction between the materials are utilized to crush the material; the "stone-beating-iron" series is that the material is accelerated to a certain speed, and is impacted on the metal lining plate, and the impact and vortex-motion friction between the material and lining plate are used to break the material. The vertical shaft impact crusher has the advantages of large crushing ratio, good particle shape, large treatment capacity, relatively high stone powder content of a product, low energy consumption, small civil engineering quantity and the like, but the fineness modulus of the product is higher.
The existing dry-method sand production line has the problems that the content of stone powder in sand does not reach the standard, the surface of produced aggregate is not as clean as that produced by a wet method, the surface appearance is poor, the requirement on sandstone raw materials is higher, and the content of impurities such as soil and organic matters in a material source needs to be strictly controlled.
Disclosure of Invention
The invention aims to provide a dry-method sand making method which can completely meet the use standard.
In order to achieve the purpose, the invention adopts the following technical scheme:
the dry sand making method comprises the following steps:
lifting and conveying the raw materials into a hopper above a coarse crusher through a feeding machine, feeding the raw materials into the coarse crusher through the hopper above the coarse crusher, and primarily crushing the raw materials by the coarse crusher to form a primary crushed material;
lifting and conveying the primary crushed material to a hopper above a fine crusher through a lifting machine, and feeding the material to the fine crusher through the hopper above the fine crusher, wherein a blast device is arranged in the lifting machine and used for removing light impurities in the primary crushed material, a magnetic absorption part is arranged in the lifting machine and used for removing iron or iron-containing impurities in the primary crushed material, and the fine crusher secondarily crushes the primary crushed material to form a secondary crushed material;
lifting and conveying the secondary crushed materials into a hopper above a sand making machine through a lifting machine, and crushing the raw materials by the sand making machine to form mixed sand with different sizes;
feeding the mixed sand to a screening device through a hoister, screening the mixed sand into finished sand with different specifications by the screening device, and outputting the finished sand through a conveying belt respectively;
in the first step to the fourth step, a dust suction port is arranged at least one of the feeder, the coarse crusher, the fine crusher, the sand making machine and the screening device through negative pressure dust suction equipment so as to suck away dust generated during the work of the dust suction device.
Preferably, still include the feed bin, the batcher includes the batcher organism and installs drive unit and the pay-off unit on the batcher organism, and the pay-off unit reciprocates by the drive unit drive, and the feed bin is to the pay-off unit blanking when the pay-off unit is located the bottom, and the pay-off unit upset is to the coarse crusher blanking when the pay-off unit moves up to the top, the feed bin has the bin outlet, be equipped with the control valve on the bin outlet.
Preferably, the feeding machine body is provided with a track which is obliquely arranged, the feeding unit is a feeding hopper which can move along the track, the feeding hopper is provided with a material reversing port and a rotatable connecting piece, the driving unit is a winch, the winch is connected with the feeding hopper through a steel wire rope, a negative pressure dust collection device is arranged above the hopper of the coarse crusher, and a dust collection port of the negative pressure dust collection device is opposite to the hopper.
Preferably, the coarse crusher comprises a coarse crusher body, a main shaft is mounted in the coarse crusher body, a cutter body is mounted on the main shaft, and the cutter body is eccentrically mounted on the main shaft; the crusher comprises a crusher body, and is characterized in that a rotating groove corresponding to the cutter body is formed in the crusher body, the outer end of the cutter body is large, the inner end of the cutter body is small, at least one breaking tip is arranged on each of two sides of the cutter body in the rotating direction, a motor for the crusher is arranged outside the crusher body and connected with a main shaft through a gearbox, an automatic reversing device is arranged on the motor for the crusher, a plurality of barb-shaped breaking hooks are arranged on two sides in the rotating groove, and the breaking hooks are distributed in different directions.
Preferably, the cutter body is rotatably connected with the main shaft, and the main shaft is provided with a limiting structure for limiting the rotation angle of the cutter body.
Preferably, the limiting structure comprises a protrusion arranged on the main shaft and a groove arranged on the cutter body, the protrusion extends into the groove, the width of the protrusion in the circumferential direction of the main shaft is smaller than that of the groove in the circumferential direction of the main shaft, and the inner wall of the groove is provided with an elastic body to form buffering.
Preferably, the fine crusher comprises a fine crusher body, a conical outer cylinder fixedly arranged on the fine crusher body, and an inner rotating body rotatably arranged on the fine crusher body and sleeved in the outer cylinder, wherein a rotating center line of the inner rotating body is parallel to a center line of the outer cylinder, but a distance is reserved between the rotating center line and the outer cylinder, a circle of lower flange is arranged below the inner side of the outer cylinder, and a circle of upper flange is formed above the flange by the inner rotating body.
Preferably, system sand machine is including system sand machine organism, and system sand machine organism top forms the feed inlet, and system sand machine organism inner chamber is equipped with rotatable carousel, and system sand machine organism is inside to be equipped with the roller of arranging in on the carousel, and roller outer wall and carousel upper surface all are equipped with the wearing layer, and the carousel passes through drive mechanism to be connected with the driving motor transmission, is equipped with wobbling swing seat on the system sand machine organism, and the roller is through the rotatable connection of pivot on swing seat, is equipped with cylinder or pneumatic cylinder on the system sand machine organism, cylinder or pneumatic cylinder are connected so that adjust the grinding pressure degree of roller with swing seat.
Preferably, the outer side of the rotary disc protrudes upwards to form an outer barrier, a circle of inner barrier located on the inner side of the outer barrier is arranged on the sand making machine body, and a discharging gap is formed between the outer barrier and the inner barrier.
Preferably, the outer barrier or the inner barrier is a component capable of being adjusted up and down, so that the size of a discharging gap between the outer barrier and the inner barrier can be adjusted.
Preferably, the bottom of the inner cavity of the sand making machine body is provided with a discharge hole, and the rotary disc is connected with a scraper for pushing the mixed sand falling into the bottom of the inner cavity of the sand making machine body to the discharge hole.
Preferably, screening plant includes the screening frame, installs cylinder and cylinder dustcoat in the screening frame, and the stack shell of cylinder is located the cylinder dustcoat, and outside cylinder dustcoat was all worn out to the upper and lower both ends of cylinder, the stack shell of cylinder was equipped with around cylinder a week the sieve piece that has a plurality of sieve meshes, and the upper end of cylinder is equipped with the feed inlet, the lower extreme has the big material export, and the below that lies in the cylinder in the screening frame corresponds sieve piece position and is equipped with the fine material export, and the lower extreme department of cylinder is equipped with the extraction opening with negative pressure dust collecting equipment intercommunication, install in the frame and be connected being used for driving cylinder axial pivoted drive arrangement with the cylinder transmission.
Preferably, the driving device is a driving motor installed on the screening rack, an output end of the driving motor is connected with a speed reducer, an output end of the speed reducer is provided with a gear, a gear ring meshed with the gear is arranged on the drum, and the driving motor drives the gear to rotate through the speed reducer so as to drive the gear ring to rotate the drum.
Preferably, both ends of the roller are provided with rolling rings, and a riding wheel group for supporting the rolling rings is arranged at the rolling rings on the screening rack.
Preferably, the negative pressure dust suction equipment comprises an air duct provided with one or more negative pressure type dust suction ports, and the air duct is connected with a cloth bag pulse dust collector; or, the negative pressure dust collection equipment comprises an air duct provided with one or more dust collection ports, a fan is arranged in the air duct, a washing chamber is arranged at the tail end of the air duct, a multi-row spray head and a multi-row water spray head are arranged in the washing chamber, the tail end of the washing chamber is connected with a precipitation tube which is bent for multiple times, and a purified air outlet is formed at the tail end of the precipitation tube.
Preferably, the sedimentation tube is a spiral tube in a spiral shape.
Preferably, the bottom of the settling pipe is connected with a detachable collecting box.
Preferably, the bent part at the bottom of the settling tube is connected with a collecting box, and the collecting box is provided with a bin door which can be opened or closed.
Preferably, the end of the settling tube is provided with a filter screen with micropores.
Advantageous effects
By adopting the technical scheme, the prepared sand can completely meet the use standard, and has less dust pollution and good production efficiency.
Drawings
FIG. 1 is a schematic view of the feeder of the present invention;
FIG. 2 is a schematic view of the coarse crusher of the present invention;
FIG. 3 is a schematic view of a partial structure of the coarse crusher of the present invention;
FIG. 4 is a schematic diagram of the structure of a fine crusher of the present invention;
FIG. 5 is a schematic structural diagram of a sand making machine according to the present invention;
FIG. 6 is a schematic view of the construction of the screening device of the present invention;
FIG. 7 is a schematic view showing the construction of the vacuum cleaner of the present invention.
Detailed Description
The structure of the present invention will be further explained with reference to the description of fig. 1 to 7.
The dry sand making method is mainly realized by a feeder, a coarse crusher 3, a fine crusher, a sand making machine, a screening device and a negative pressure dust collection device 6, and comprises the following steps:
lifting and conveying the raw materials into a hopper above a coarse crusher through a feeding machine, feeding the raw materials into the coarse crusher through the hopper above the coarse crusher, and primarily crushing the raw materials by the coarse crusher to form a primary crushed material;
lifting and conveying the primary crushed material to a hopper above a fine crusher through a lifting machine, and feeding the material to the fine crusher through the hopper above the fine crusher, wherein a blast device is arranged in the lifting machine and used for removing light impurities in the primary crushed material, a magnetic absorption part is arranged in the lifting machine and used for removing iron or iron-containing impurities in the primary crushed material, and the fine crusher secondarily crushes the primary crushed material to form a secondary crushed material;
lifting and conveying the secondary crushed materials into a hopper above a sand making machine through a lifting machine, and crushing the raw materials by the sand making machine to form mixed sand with different sizes;
feeding the mixed sand to a screening device through a hoister, screening the mixed sand into finished sand with different specifications by the screening device, and outputting the finished sand through a conveying belt respectively;
in the first step to the fourth step, a dust suction port is arranged at least one of the feeder, the coarse crusher, the fine crusher, the sand making machine and the screening device through negative pressure dust suction equipment so as to suck away dust generated during the work of the dust suction device.
The dry sand making method further comprises a bin 1, the feeder comprises a feeder body 21, and a driving unit and a feeding unit which are arranged on the feeder body, the feeding unit is driven by the driving unit to move up and down, the bin discharges materials to the feeding unit when the feeding unit is positioned at the bottom end, the feeding unit overturns to discharge materials to a coarse crusher when the feeding unit moves up to the top end, the bin is provided with a discharge port 11, and a control valve 12 is arranged on the discharge port.
Preferably, the feeding machine body is provided with a track 22 which is obliquely arranged, the feeding unit is a feeding hopper 23 which can move along the track, the feeding hopper is provided with a material pouring port 24 and a rotatable connecting piece 25, the driving unit is a winch 26, the winch is connected with the feeding hopper through a steel wire rope 27, a negative pressure dust collection device is arranged above the hopper of the coarse crusher, and the dust collection port of the negative pressure dust collection device is opposite to the hopper.
The coarse crusher comprises a coarse crusher body 31, a main shaft 32 is mounted in the coarse crusher body, a cutter body 33 is mounted on the main shaft, and the cutter body is eccentrically mounted on the main shaft; the crusher comprises a coarse crusher body and is characterized in that a rotary groove 34 corresponding to the cutter body is formed in the coarse crusher body, the outer end of the cutter body is large, the inner end of the cutter body is small, at least one breaking tip 35 is arranged on each of two sides of the cutter body in the rotating direction, a coarse crusher motor 36 is arranged outside the coarse crusher body and connected with a main shaft through a gearbox 37, an automatic reversing device is arranged on the coarse crusher motor, a plurality of barb-shaped crushing hooks 38 are arranged on each of two sides of the rotary groove, and the directions of the crushing hooks are distributed in a differentiated mode. Preferably, the cutter body is rotatably connected with the main shaft, and the main shaft is provided with a limiting structure for limiting the rotation angle of the cutter body. Preferably, the limiting structure comprises a protrusion 391 arranged on the main shaft and a groove 392 arranged on the cutter body, the protrusion extends into the groove, the width of the protrusion in the circumferential direction of the main shaft is smaller than that of the groove in the circumferential direction of the main shaft, and the inner wall of the groove is provided with an elastic body 393 for forming buffering.
The fine crusher comprises a fine crusher body, a conical outer cylinder 41 fixedly arranged on the fine crusher body and an inner rotating body 42 which is rotatably arranged on the fine crusher body and sleeved in the outer cylinder, wherein the rotating center line of the inner rotating body is parallel to the center line of the outer cylinder, but a distance is reserved between the rotating center line and the outer cylinder, a circle of lower flange 43 is arranged below the inner side of the outer cylinder, and a circle of upper flange 44 is formed above the flange 43 by the inner rotating body 42.
System sand machine is including system sand machine organism 51, and system sand machine organism top forms the feed inlet, and system sand machine organism inner chamber is equipped with rotatable carousel 52, and system sand machine organism is inside to be equipped with the roller 53 of arranging on carousel 52 in, and roller outer wall and carousel upper surface all are equipped with the wearing layer, and the carousel passes through drive mechanism to be connected with the driving motor transmission, is equipped with wobbling swing seat 54 on the system sand machine organism, and the roller is through the rotatable connection of pivot on swing seat, is equipped with cylinder or pneumatic cylinder 55 on the system sand machine organism, cylinder or pneumatic cylinder are connected so that adjust the roll pressure degree of roller with swing seat.
Preferably, the outer side of the rotary disc protrudes upwards to form an outer barrier 56, a circle of inner barrier 57 positioned at the inner side of the outer barrier is arranged on the sand making machine body, and a discharging gap is formed between the outer barrier and the inner barrier.
Preferably, the outer barrier or the inner barrier is a component capable of being adjusted up and down, so that the size of a discharging gap between the outer barrier and the inner barrier can be adjusted.
Preferably, the bottom of the inner cavity of the sand making machine body is provided with a discharge outlet 59, and the rotary disc is connected with a scraper 58 for pushing the mixed sand falling into the bottom of the inner cavity of the sand making machine body to the discharge outlet.
Screening plant includes screening frame 61, installs cylinder 62 and cylinder dustcoat 63 in the screening frame, and the stack shell of cylinder is located the cylinder dustcoat, and the upper and lower both ends of cylinder are all worn out outside the cylinder dustcoat, and the stack shell of cylinder is equipped with the sieve piece 64 that has a plurality of sieve meshes around cylinder a week, and the upper end of cylinder is equipped with feed inlet 65, the lower extreme has big material export 66, and the below that lies in the cylinder in the screening frame corresponds sieve piece position and is equipped with thin material export 67, and the lower extreme department of cylinder is equipped with the extraction opening 68 with negative pressure dust collecting equipment intercommunication, install in the frame and be connected being used for driving cylinder axial pivoted drive arrangement with the cylinder transmission.
Preferably, the driving device is a driving motor installed on the screening rack, an output end of the driving motor is connected with a speed reducer, an output end of the speed reducer is provided with a gear 691, the drum is provided with a gear ring 692 engaged with the gear, and the driving motor drives the gear to rotate through the speed reducer so as to drive the gear ring to rotate the drum.
Preferably, both ends of the drum are provided with rolling rings 693, and a riding wheel group 694 for supporting the rolling rings is arranged at the rolling rings on the screening machine frame.
Preferably, the negative pressure dust suction device comprises an air duct 71 provided with one or more dust suction ports, a fan 72 is arranged in the air duct, a washing chamber 73 is arranged at the tail end of the air duct, a plurality of rows of spray heads and a plurality of rows of water spray heads 74 are arranged in the washing chamber, a precipitation pipe 75 which is bent for many times is connected to the tail end of the washing chamber, and a purified air outlet is formed at the tail end of the precipitation pipe.
Preferably, the sedimentation pipe is a spiral pipe, the bottom of the sedimentation pipe is connected with a detachable collection box 76, the bent part at the bottom of the sedimentation pipe is connected with the collection box 76, and the collection box is provided with a bin gate which can be opened or closed.
In this embodiment, the end of the settling tube is provided with a filter screen with micropores.
In other embodiments, the negative pressure dust suction device may include an air duct provided with one or more negative pressure type dust suction ports, and the air duct is connected with a bag-type pulse dust collector, and dust in air is removed by the bag-type dust collector.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (10)
1. A dry-method sand making method is characterized by comprising the following steps:
lifting and conveying the raw materials into a hopper above a coarse crusher through a feeding machine, feeding the raw materials into the coarse crusher through the hopper above the coarse crusher, and primarily crushing the raw materials by the coarse crusher to form a primary crushed material;
lifting and conveying the primary crushed material to a hopper above a fine crusher through a lifting machine, and feeding the material to the fine crusher through the hopper above the fine crusher, wherein a blast device is arranged in the lifting machine and used for removing light impurities in the primary crushed material, a magnetic absorption part is arranged in the lifting machine and used for removing iron or iron-containing impurities in the primary crushed material, and the fine crusher secondarily crushes the primary crushed material to form a secondary crushed material;
lifting and conveying the secondary crushed materials into a hopper above a sand making machine through a lifting machine, and crushing the raw materials by the sand making machine to form mixed sand with different sizes;
feeding the mixed sand to a screening device through a hoister, screening the mixed sand into finished sand with different specifications by the screening device, and outputting the finished sand through a conveying belt respectively;
in the first step to the fourth step, a dust suction port is arranged at least one of the feeder, the coarse crusher, the fine crusher, the sand making machine and the screening device through negative pressure dust suction equipment so as to suck away dust generated during the work of the dust suction device.
2. The dry sand making method according to claim 1, further comprising a bin, wherein the feeder comprises a feeder body, and a driving unit and a feeding unit which are arranged on the feeder body, the feeding unit is driven by the driving unit to move up and down, the bin discharges materials to the feeding unit when the feeding unit is positioned at the bottom end, the feeding unit overturns to discharge materials to the coarse crusher when the feeding unit moves up to the top end, the bin is provided with a discharge port, and a control valve is arranged on the discharge port.
3. The dry sand making method according to claim 1, wherein the coarse crusher comprises a coarse crusher body, a main shaft is arranged in the coarse crusher body, a cutter body is arranged on the main shaft, and the cutter body is eccentrically arranged on the main shaft; the crusher comprises a crusher body, and is characterized in that a rotating groove corresponding to the cutter body is formed in the crusher body, the outer end of the cutter body is large, the inner end of the cutter body is small, at least one breaking tip is arranged on each of two sides of the cutter body in the rotating direction, a motor for the crusher is arranged outside the crusher body and connected with a main shaft through a gearbox, an automatic reversing device is arranged on the motor for the crusher, a plurality of barb-shaped breaking hooks are arranged on two sides in the rotating groove, and the breaking hooks are distributed in different directions.
4. The dry sand making method according to claim 1, wherein the fine crusher comprises a fine crusher body, a conical outer cylinder fixedly arranged on the fine crusher body, and an inner rotary body rotatably arranged on the fine crusher body and sleeved in the outer cylinder, the rotating center line of the inner rotary body is parallel to the center line of the outer cylinder with a distance therebetween, a circle of lower flange is arranged below the inner side of the outer cylinder, and the inner rotary body forms a circle of upper flange above the flange.
5. The dry sand making method according to claim 1, wherein the sand making machine comprises a sand making machine body, a feed port is formed above the sand making machine body, a rotatable turntable is arranged in an inner cavity of the sand making machine body, a roller arranged on the turntable is arranged in the sand making machine body, wear-resistant layers are arranged on the outer wall of the roller and the upper surface of the turntable, the turntable is in transmission connection with a driving motor through a transmission mechanism, a swingable swing seat is arranged on the sand making machine body, the roller is rotatably connected to the swing seat through a rotating shaft, and an air cylinder or a hydraulic cylinder is arranged on the sand making machine body and is connected with the swing seat so as to adjust the grinding pressure of the roller.
6. The dry sand making method according to claim 1, wherein the screening device comprises a screening frame, a drum and a drum outer cover are mounted on the screening frame, a drum body of the drum is positioned in the drum outer cover, the upper end and the lower end of the drum both penetrate out of the drum outer cover, a screen sheet with a plurality of screen holes is arranged on the drum body and surrounds the drum, a feed inlet is formed in the upper end of the drum, a large material outlet is formed in the lower end of the drum, a fine material outlet is formed in the screening frame and is positioned below the drum corresponding to the screen sheet, an air suction opening communicated with a negative pressure dust suction device is formed in the lower end of the drum, and a driving device which is in transmission connection with the drum and is used for driving the drum to rotate axially is mounted on the frame.
7. The dry sand making method according to claim 6, wherein the driving device is a driving motor mounted on the screening frame, the output end of the driving motor is connected with a speed reducer, the output end of the speed reducer is provided with a gear, the drum is provided with a gear ring meshed with the gear, and the driving motor drives the gear to rotate through the speed reducer so as to drive the gear ring to rotate so as to drive the drum to rotate.
8. The dry sand making method according to claim 6, wherein rolling rings are arranged at both ends of the roller, and idler groups for supporting the rolling rings are arranged on the screening machine frame at the rolling rings.
9. The dry sand making method according to claim 1, wherein the negative pressure dust suction device comprises an air duct provided with one or more negative pressure type dust suction ports, and a bag pulse dust collector is connected to the air duct; or, the negative pressure dust collection equipment comprises an air duct provided with one or more dust collection ports, a fan is arranged in the air duct, a washing chamber is arranged at the tail end of the air duct, a multi-row spray head and a multi-row water spray head are arranged in the washing chamber, the tail end of the washing chamber is connected with a precipitation tube which is bent for multiple times, and a purified air outlet is formed at the tail end of the precipitation tube.
10. The dry sand making method according to claim 9, wherein a detachable collection tank is connected to the bottom of the settling pipe; or the bent part at the bottom of the settling tube is connected with a collecting box, and the collecting box is provided with a bin door which can be opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820123.2A CN110787890A (en) | 2019-08-31 | 2019-08-31 | Dry sand making method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910820123.2A CN110787890A (en) | 2019-08-31 | 2019-08-31 | Dry sand making method |
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| CN110787890A true CN110787890A (en) | 2020-02-14 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202654897U (en) * | 2012-07-20 | 2013-01-09 | 福建溪石股份有限公司 | Efficient dust removal equipment for workshop |
| CN103341383A (en) * | 2013-07-02 | 2013-10-09 | 王燕 | Dry-method sand manufacturing machine |
| CN103433108A (en) * | 2013-07-09 | 2013-12-11 | 王燕 | Drying-method sand making device and process |
| CN203335486U (en) * | 2013-06-06 | 2013-12-11 | 湖南省科辉墙材有限公司 | Anti-corrosion fan |
| CN104084370A (en) * | 2014-06-05 | 2014-10-08 | 浙江中科兴环能设备有限公司 | Living garbage drum screening machine |
| CN104549619A (en) * | 2014-11-20 | 2015-04-29 | 浙江双金机械集团股份有限公司 | Dry-method sand making production line and sand making method |
| CN104607290A (en) * | 2015-02-03 | 2015-05-13 | 浙江中科兴环能设备有限公司 | Garbage crusher |
| CN204454894U (en) * | 2015-03-25 | 2015-07-08 | 上海砼力人工砂装备有限公司 | Integrated fine work type environmental protection dry method sand production system |
| CN204737439U (en) * | 2015-05-29 | 2015-11-04 | 屯留县彬烨钙合金工贸有限公司 | Shaft kiln is with metallurgical mineral aggregate ration feeder |
| CN205007788U (en) * | 2015-08-18 | 2016-02-03 | 山东三生石业有限公司 | Rostone workshop dust collecting system |
| CN105921246A (en) * | 2016-06-15 | 2016-09-07 | 张荣斌 | Mechanism sand production system and method |
| CN107511241A (en) * | 2016-06-15 | 2017-12-26 | 张荣斌 | A kind of Machine-made Sand production system |
| CN208275561U (en) * | 2018-03-30 | 2018-12-25 | 江苏天沃重工科技有限公司 | Half tower type sand production line |
-
2019
- 2019-08-31 CN CN201910820123.2A patent/CN110787890A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202654897U (en) * | 2012-07-20 | 2013-01-09 | 福建溪石股份有限公司 | Efficient dust removal equipment for workshop |
| CN203335486U (en) * | 2013-06-06 | 2013-12-11 | 湖南省科辉墙材有限公司 | Anti-corrosion fan |
| CN103341383A (en) * | 2013-07-02 | 2013-10-09 | 王燕 | Dry-method sand manufacturing machine |
| CN103433108A (en) * | 2013-07-09 | 2013-12-11 | 王燕 | Drying-method sand making device and process |
| CN104084370A (en) * | 2014-06-05 | 2014-10-08 | 浙江中科兴环能设备有限公司 | Living garbage drum screening machine |
| CN104549619A (en) * | 2014-11-20 | 2015-04-29 | 浙江双金机械集团股份有限公司 | Dry-method sand making production line and sand making method |
| CN104607290A (en) * | 2015-02-03 | 2015-05-13 | 浙江中科兴环能设备有限公司 | Garbage crusher |
| CN204454894U (en) * | 2015-03-25 | 2015-07-08 | 上海砼力人工砂装备有限公司 | Integrated fine work type environmental protection dry method sand production system |
| CN204737439U (en) * | 2015-05-29 | 2015-11-04 | 屯留县彬烨钙合金工贸有限公司 | Shaft kiln is with metallurgical mineral aggregate ration feeder |
| CN205007788U (en) * | 2015-08-18 | 2016-02-03 | 山东三生石业有限公司 | Rostone workshop dust collecting system |
| CN105921246A (en) * | 2016-06-15 | 2016-09-07 | 张荣斌 | Mechanism sand production system and method |
| CN107511241A (en) * | 2016-06-15 | 2017-12-26 | 张荣斌 | A kind of Machine-made Sand production system |
| CN208275561U (en) * | 2018-03-30 | 2018-12-25 | 江苏天沃重工科技有限公司 | Half tower type sand production line |
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Application publication date: 20200214 |