CN113511830A - Machine-made sand and preparation method thereof - Google Patents

Machine-made sand and preparation method thereof Download PDF

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Publication number
CN113511830A
CN113511830A CN202110399049.9A CN202110399049A CN113511830A CN 113511830 A CN113511830 A CN 113511830A CN 202110399049 A CN202110399049 A CN 202110399049A CN 113511830 A CN113511830 A CN 113511830A
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China
Prior art keywords
crushing
sand
machine
primary
feeding
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Granted
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CN202110399049.9A
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Chinese (zh)
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CN113511830B (en
Inventor
傅伟
薛腾飞
薛子豪
付泽莘
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CCCC Investment Nanjing Co Ltd
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CCCC Investment Nanjing Co Ltd
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Priority to CN202110399049.9A priority Critical patent/CN113511830B/en
Publication of CN113511830A publication Critical patent/CN113511830A/en
Application granted granted Critical
Publication of CN113511830B publication Critical patent/CN113511830B/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • 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
    • 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
    • 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
    • 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
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B02C2013/28618—Feeding means
    • B02C2013/28654—Feeding means of screw type

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention belongs to the technical field of road construction or building construction machine-made sand application, and particularly discloses machine-made sand and a preparation method thereof, wherein the machine-made sand is formed by mixing and crushing two or three or four of limestone, tuff, granite and pebble, the proportion of the four components is 1:0.5-0.8:1.2-1.5:0.5-1, and the preparation method is characterized in that a primary material conveying assembly, a vertical crushing assembly, a sieving machine and the like which are matched with each other are used to finish high-efficiency, safe and environment-friendly production. The machine-made sand and the preparation method thereof have the beneficial effects that: the machine-made sand mixed mortar has the advantages of reasonable design, high automation degree of the sand making production process, low operation cost, high sand making rate, energy conservation, large yield, less pollution and simple and convenient maintenance, the machine-made sand produced by the sand making meets the national building sand standard, the granularity is uniform, the grain shape is good, the grading is reasonable, and the prepared machine-made sand mixed mortar meets the requirements of on-site use standards.

Description

Machine-made sand and preparation method thereof
Technical Field
The invention belongs to the technical field of application of road construction or building construction machine-made sand, and particularly relates to machine-made sand and a preparation method thereof.
Background
The machine-made sand is sand processed by the sand making machine and other accessory equipment, the finished product is more regular, and the sand can be processed into sand with different rules and sizes according to different process requirements, so that the daily requirement can be better met.
The machine-made sand is mainly applied to concrete with strength grade of C60 and below in construction projects such as buildings, municipal works, traffic and the like, and can also be applied to concrete projects such as ports, water conservancy and the like when corresponding technical requirements are met. The machine-made sand is suitable for preparing plastic concrete mixed sand and concrete with plasticity, large fluidity and pumping construction.
In the engineering construction process, the sandstone is used as an important component of a concrete structure material, and the quality of the sandstone has a significant influence on the quality and durability of the whole engineering. On the premise of meeting the performance index of the sand, an economic and feasible scheme is selected, so that the construction quality requirement is met, and the production cost is effectively controlled, so that the comprehensive benefit is obvious in the areas lacking natural sand resources.
Therefore, based on the problems, the invention provides machine-made sand and a preparation method thereof.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide machine-made sand and a preparation method thereof, the design is reasonable, the automation degree of the sand making production process is high, the operation cost is low, the machine-made sand produced by the sand making meets the national building sand standard, the granularity is uniform, the grain shape is good, the grading is reasonable, and the prepared machine-made sand mixed mortar meets the on-site use standard requirement.
The technical scheme is as follows: the invention provides machine-made sand which is formed by mixing and crushing two or three or four of limestone, tuff, granite and pebble, wherein the ratio of the four components is 1:0.5-0.8:1.2-1.5: 0.5-1.
Preferably, the machine-made sand finished product further comprises portland cement, lime powder, water, vitrified micro-beads, latex powder, sodium dodecyl sulfate, sodium gluconate and a flowing agent, and the machine-made sand finished product is mixed with the machine-made sand finished product to prepare machine-made sand mortar.
The invention provides a machine-made sand preparation method, which comprises the following steps of 1, carrying out spiral mixing and conveying on two or three or four kinds of mixed raw material sand by a primary material conveying assembly to a vertical crushing assembly, wherein primary mixing action is completed during spiral mixing and conveying; step 2, feeding the mixed raw material sand obtained in the step 1 into a vertical crushing assembly, and enabling the vertical crushing assembly to act on the mixed raw material sand; and 3, screening the crushed raw materials in the step 2, wherein the screened raw material sand which does not meet the requirement enters the primary material conveying assembly again for circular treatment.
Further preferably, the primary feeding assembly comprises a collecting trough arranged in the end face of the concrete floor, a cross-bar-shaped concrete baffle plate which is arranged on the concrete floor and has two ends protruding out of the collecting trough, a plurality of vertical feeding pipe support plates arranged on one side of the concrete floor, a circular inclined feeding pipe arranged on the plurality of vertical feeding pipe support plates, a circular inclined feeding pipe collecting shell arranged at two ends of the circular inclined feeding pipe, a circular inclined feeding pipe outlet, a feeding bearing fixing block arranged on one end face of the circular inclined feeding pipe, a feeding shaft through hole, a feeding bearing mounting groove, a feeding bearing arranged in the feeding bearing mounting groove, a feeding motor mounting plate arranged on one end face of the circular inclined feeding pipe and positioned below the feeding bearing fixing block, and a feeding motor arranged on the feeding motor mounting plate, the feeding shaft is arranged in the circular inclined feeding pipe, the feeding shaft coupler is arranged at one end of the feeding shaft and connected with the feeding motor, and the spiral feeding teeth are arranged on the feeding shaft, wherein one ends of the feeding shaft and the spiral feeding teeth extend out of the collecting shell of the circular inclined feeding pipe; the vertical crushing assembly comprises a strip-shaped bottom plate, two groups of vertical supporting legs symmetrically arranged at two ends of the strip-shaped bottom plate, a positioning block arranged at one end of each group of vertical supporting legs, a plurality of fixing holes respectively arranged in the positioning blocks, a vertical barrel fixing hole arranged in the strip-shaped bottom plate, a vertical crushing barrel arranged in the vertical barrel fixing hole through a plurality of bolts, a distributing box arranged on the vertical crushing barrel, a feeding hole and a slope sealing cover respectively arranged on the distributing box and the vertical crushing barrel, a discharging hole arranged on the slope sealing cover, a fixing block arranged on the distributing box, a bearing fixing groove arranged on the fixing block, a crushing shaft through hole, a bearing arranged in the bearing fixing groove, and a crushing shaft with one end positioned in the distributing box and the vertical crushing barrel and the other end penetrating through the crushing shaft through hole and the bearing, the crushing device comprises a crushing shaft, a driven wheel, a hollow wear-resistant aggregate sleeve, a driving motor seat, a driving motor, a driving wheel, a driving belt, a plurality of material distributing rods, a plurality of crushing impact blocks, a filtering plate, a plurality of sand through holes, a plurality of material distributing plates, a wear-resistant sheath and a guide pipe, wherein the driven wheel is arranged at one end of the crushing shaft, the hollow wear-resistant aggregate sleeve is arranged in a vertical crushing cylinder, the driving motor seat is arranged at one end of a strip-shaped bottom plate, the driving motor is arranged on the driving motor seat, the driving belt is arranged at two ends of the driving motor and is respectively connected with the driven wheel and the driving wheel, the material distributing rods, the crushing impact blocks, the filtering plate is arranged on the inner wall of the lower portion of the hollow wear-resistant aggregate sleeve, the sand through holes are arranged on the filtering plate, the material distributing plates are arranged on the crushing shaft and are positioned below the filtering plate, the wear-resistant sheath is arranged on the inner wall of the material distributing box, and the guide pipe with an air inlet head is arranged on one side of a vertical supporting leg and is arranged on one end of the discharge port; the screening machine comprises a group of transverse supporting plates, a group of vertical supporting plates respectively arranged on the bottom surfaces of two ends of the group of transverse supporting plates, an inclined feeding plate arranged at one end of the group of transverse supporting plates, a sealed material receiving box arranged at the other end of the group of transverse supporting plates and the other end of the group of vertical supporting plates, a first outlet arranged on the sealed material receiving box, a slope-shaped material receiving shell arranged on the bottom surface of the group of transverse supporting plates, a second outlet arranged on the slope-shaped material receiving shell, a sealing cover arranged on the top surface of the group of transverse supporting plates, a dust collecting guide cover arranged on the sealing cover, a guide pipe arranged on the dust collecting guide cover, a strip-shaped sealing curtain fixing plate arranged at one end of the sealing cover, a plurality of sealing curtains arranged on the strip-shaped sealing curtain fixing plate, a driving motor mounting plate arranged on the outer wall on one side of the sealing cover, and a driving motor arranged on the driving motor mounting plate, and a driving wheel disposed on the driving motor, a set of first bearing fixing grooves symmetrically disposed in the middle of the set of horizontal supporting plates, first bearings respectively disposed in the set of first bearing fixing grooves, driving shaft holes respectively disposed in the middle of the set of horizontal supporting plates and used in cooperation with the set of first bearing fixing grooves, driving shafts having both ends respectively penetrating the first bearings, the driving shaft holes, a plurality of sets of second bearing fixing grooves symmetrically disposed in the middle of the set of horizontal supporting plates and located at both sides of the set of first bearing fixing grooves, second bearings respectively disposed in the sets of second bearing fixing grooves, a plurality of sets of driving shaft holes respectively disposed in the middle of the set of horizontal supporting plates and located at both sides of the driving shaft holes, and a plurality of driving shafts respectively penetrating the second bearings, the sets of driving shafts, and a plurality of driving shafts respectively disposed at the driving shaft, the driving shaft holes, The screening shaft sleeves on the transmission shafts, the screening material bulges arranged on the outer walls of the screening shaft sleeves, the auxiliary driving wheels and the driven wheels which are respectively arranged on the driving shaft and the transmission shafts, the driving belts which are respectively connected with the auxiliary driving wheels and the driven wheels, the linkage wheels which are arranged on the driving shaft, and the driving belts which are respectively connected with the driving wheels and the linkage wheels.
Preferably, the primary material conveying assembly further comprises an inclined feeding shell arranged on the other side of the concrete ground, an inclined feeding shell inlet arranged on the outer wall of one side of the inclined feeding shell, a group of primary crushing bearing mounting blocks symmetrically arranged on the end faces of two ends of the concrete ground, primary crushing bearings respectively arranged in the group of primary crushing bearing mounting blocks, a primary crushing shaft with two ends respectively penetrating through the primary crushing bearings, a plurality of primary crushing cutters arranged on the outer wall of the primary crushing shaft, a primary crushing motor mounting plate arranged on one end face of the concrete ground, a primary crushing motor arranged on the primary crushing motor mounting plate, and a first primary crushing shaft coupler respectively connected with the primary crushing shaft and the primary crushing motor.
Preferably, the primary material conveying assembly further comprises an auxiliary primary crushing motor mounting plate arranged on the end face of the other end of the concrete ground, an auxiliary primary crushing motor arranged on the auxiliary primary crushing motor mounting plate, and a second primary crushing shaft coupler connected with the primary crushing shaft and the auxiliary primary crushing motor respectively.
Preferably, the primary material conveying assembly further comprises a transverse dust baffle arranged on the outer wall of one side of the upper part of the transverse bar-shaped concrete partition plate, a herringbone air guide pipe connected with the inclined feeding shell and the transverse dust baffle respectively, and a herringbone air guide pipe connector arranged on the herringbone air guide pipe.
Further preferably, the machine-made sand preparation method further comprises a dust removal assembly respectively matched with the primary crushing material conveying assembly, the vertical crushing assembly and the sieving machine for use, wherein the dust removal assembly comprises a box body, supporting leg fixing blocks arranged at four corners of the bottom surface of the box body, supporting legs respectively connected with the supporting leg fixing blocks, an open protective shell arranged at the bottom surface of the box body, a threaded connecting sleeve arranged at the upper part of the box body, an internal threaded sealing cover connected with the threaded connecting sleeve, an external threaded connecting block connected with the threaded connecting sleeve, a rotary handheld part, a dust removal bag, an air inlet arranged in the middle of the dust removal bag, an outlet arranged at one end of the dust removal bag, a first connecting flange connected with the air inlet, a group of strip-shaped positioning plates arranged on the inner wall of the upper part of the box body, and a sealing cover respectively connected with the group of strip-shaped positioning plates, a first through hole, a second through hole, a concave dust collecting shell, a sealing cover gas outlet, a dust outlet, a second connecting flange, an air inlet pipe, an air outlet pipe, a fixed plate, a motor mounting seat, a motor, a blade sleeve, a plurality of blades and blade sleeve fixing bolts, a porous air guide cover, a plurality of air guide holes and a plurality of air guide holes, wherein the first through hole, the second through hole, the concave dust collecting shell, the sealing cover gas outlet and the dust outlet are respectively arranged on the sealing cover, the dust outlet is arranged on the bottom surface of the concave dust collecting shell and protrudes out of the open-type protective shell, the air inlet and the dust removing bag are respectively matched with the first through hole and the second through hole for use, the second connecting flange is connected with the first connecting flange, the air inlet pipe is connected with the second connecting flange at one end, the other end penetrates through the box body, the air outlet pipe is arranged on the box body, the fixed plate is arranged on the outer wall of one side of the box body, the fixed plate is arranged on the fixed plate, the motor mounting seat is arranged on the motor mounting seat, the motor, the blade sleeve, the fixed bolts are arranged at one end of the inner wall of the box body, and the porous air guide cover are respectively connected with the porous air guide cover, the air inlet pipe is arranged on the outer wall of the upper part of the other side of the box body, the inclined reinforcing plate is arranged on the outer wall of the upper part of the other side of the box body and connected with the air inlet pipe, and the inclined reinforcing fixing plates are arranged on the inner wall of the lower part of the box body and connected with the sealing cover, wherein the herringbone air guide pipe interface, the conduit and the conduit with the air inlet head are respectively connected with the air inlet pipe through the auxiliary air conveying conduit.
Further preferably, the material conveying assembly for primary crushing further comprises an arc-shaped filter plate which is arranged in the concrete floor and is positioned below the primary crushing shaft and the plurality of primary crushing knives.
Preferably, the circular inclined material guide pipe aggregate shell is located below the primary crushing shaft or the arc-shaped filter plate, the outlet of the circular inclined material guide pipe is in sealing connection with the feeding hole, the discharging hole is located above the inclined feeding plate, the machine-made sand meeting the particle requirement is screened out through the second outlet, and the machine-made sand raw material which does not meet the particle requirement at the first outlet is subjected to circular processing through the inlet of the inclined feeding shell.
Compared with the prior art, the machine-made sand and the preparation method thereof have the beneficial effects that: the machine-made sand mixed mortar has the advantages of reasonable design, high automation degree of the sand making production process, low operation cost, high sand making rate, energy conservation, large yield, less pollution and simple and convenient maintenance, the machine-made sand produced by the sand making meets the national building sand standard, the granularity is uniform, the grain shape is good, the grading is reasonable, and the prepared machine-made sand mixed mortar meets the requirements of on-site use standards.
Drawings
FIG. 1 is a flow diagram of a method of making machine-made sand according to the present invention;
FIG. 2 is a schematic structural view of a primary feed delivery assembly of a machine-made sand preparation method of the present invention, partially in elevation;
FIG. 3 is a schematic top view showing a part of the structure of a feed bearing fixing block, a feed shaft through hole, a feed bearing mounting groove, etc. of a primary feed assembly of a machine-made sand preparing method according to the present invention;
FIG. 4 is a schematic top view showing a part of the construction of the inclined feed casing, the inclined feed casing inlet, a set of primary crushing bearing mounting blocks, the primary crushing bearings, the primary crushing shafts, etc. of the primary feed delivery assembly of the machine-made sand preparing method of the present invention;
FIG. 5 is a schematic front view of a vertical crushing assembly of a manufactured sand production process of the present invention;
FIG. 6 is a schematic top view of the bottom plate a, the vertical barrel fixing hole a, etc. of the vertical crushing assembly of the machine-made sand preparation line of the present invention;
FIG. 7 is a schematic structural view of a front view of a sieving machine of a machine-made sand preparation method of the present invention;
FIG. 8 is a schematic top view of a portion of the screen machine of a method of making machine sand according to the present invention;
FIG. 9 is a schematic front view of a dust extraction assembly of a method of making machine-made sand according to the present invention;
fig. 10 is a schematic structural view of a group strip-shaped positioning plate c, a sealing cover c, a first through hole c, a second through hole c, and the like of a dust removing assembly of a machine-made sand preparation method of the present invention.
Detailed Description
The invention will be further elucidated with reference to the following specific examples.
Example one
A method for preparing machine-made sand as shown in fig. 1 to 10, comprising the following steps of 1, a primary material conveying component, spirally mixing and conveying two or three or four kinds of mixed material sand to a vertical crushing component, wherein preliminary mixing is completed during spiral mixing and conveying; step 2, feeding the mixed raw material sand obtained in the step 1 into a vertical crushing assembly, and enabling the vertical crushing assembly to act on the mixed raw material sand; and 3, screening the crushed raw materials in the step 2, wherein the screened raw material sand which does not meet the requirement enters the primary material conveying assembly again for circular treatment.
The primary feed assembly shown in FIGS. 1 to 4 comprises a hopper 2 provided in an end surface of a concrete floor 1, a horizontal bar-shaped soil-concrete partition 5 provided on the concrete floor 1 and having both ends protruding from the hopper 2, a plurality of vertical feed pipe support plates 4 provided on one side of the concrete floor 1, circular slant feed pipes 6 provided on the plurality of vertical feed pipe support plates 4, circular slant feed pipe aggregate casings 7 provided at both ends of the circular slant feed pipes 6, circular slant feed pipe outlets 8, feed bearing fixing blocks 9 provided at one end surfaces of the circular slant feed pipes 6, feed shaft through holes 15 provided in the feed bearing fixing blocks 9, feed bearing mounting grooves 10, feed bearings 11 provided in the feed bearing mounting grooves 10, and feed motor mounting plates 12 provided at one end surfaces of the circular slant feed pipes 6 and located below the feed bearing fixing blocks 9, a material conveying motor 14 arranged on the material conveying motor mounting plate 12, a material conveying shaft 17 arranged in the circular inclined material guiding pipe 6, a material conveying shaft coupler 13 arranged at one end of the material conveying shaft 17 and connected with the material conveying motor 14, and a spiral material conveying tooth 18 arranged on the material conveying shaft 17, wherein one end of the material conveying shaft 17 and one end of the spiral material conveying tooth 18 extend out of the material collecting shell 7 of the circular inclined material guiding pipe; as shown in the figures 5-6, the vertical crushing assembly comprises a bar-shaped bottom plate 1a, two groups of vertical supporting legs 2a symmetrically arranged at two ends of the bar-shaped bottom plate 1a, a positioning block 3a arranged at one end of the two groups of vertical supporting legs 2a, a plurality of fixing holes 4a respectively arranged in the positioning block 3a, a vertical cylinder fixing hole 5a arranged in the bar-shaped bottom plate 1a, a vertical crushing cylinder 6a arranged in the vertical cylinder fixing hole 5a through a plurality of bolts 7a, a material separating box 8a arranged on the vertical crushing cylinder 6a, a material inlet 9a and a slope sealing cover 10a respectively arranged on the material separating box 8a and the vertical crushing cylinder 6a, a material outlet 11a arranged on the slope sealing cover 10a, a fixing block 14a arranged on the material separating box 8a, and a bearing fixing groove 15a arranged on the fixing block 14a, A crushing shaft through hole 16a, a bearing 17a arranged in the bearing fixing groove 15a, a crushing shaft 28a with one end positioned in the material distribution box 8a and the vertical crushing cylinder 6a and the other end penetrating through the crushing shaft through hole 16a and the bearing 17a, a driven wheel 23a arranged at one end of the crushing shaft 28a, a hollow wear-resistant aggregate sleeve 13a arranged in the vertical crushing cylinder 6a, a driving motor base 20a arranged at one end face of the strip-shaped bottom plate 1a, a driving motor 21a arranged on the driving motor base 20a, a driving wheel 22a arranged on the driving motor 21a, a driving belt 24a with two ends respectively connected with the driven wheel 23a and the driving wheel 22a, a plurality of material distribution rods 18a, a plurality of crushing impact blocks 19a arranged on the crushing shaft 28a and positioned in the material distribution box 8a and the vertical crushing cylinder 6a, and a filter plate 26a arranged on the lower inner wall of the hollow aggregate wear-resistant sleeve 13a, a plurality of sand through holes 27a arranged on the filter plate 26a, a plurality of material distributing plates 25a arranged on the outer wall of one end of the crushing shaft 28a and positioned below the filter plate 26a, a wear-resistant sheath 12a arranged on the inner wall of the material distributing box 8a, and a guide pipe 29a with an air inlet head arranged on the vertical support leg 2a and positioned on one side of the discharge hole 11 a; the sieving machine shown in figures 7-8 comprises a group of horizontal supporting plates 1b, a group of vertical supporting plates 2b respectively arranged on the bottom surfaces of both ends of the group of horizontal supporting plates 1b, an inclined feeding plate 6b arranged on one end of the group of horizontal supporting plates 1b, a sealed material receiving box 11b arranged on the group of horizontal supporting plates 1b and the other end of the group of vertical supporting plates 2b, a first outlet 12b arranged on the sealed material receiving box 11b, a slope-shaped material receiving shell 9b arranged on the bottom surface of the group of horizontal supporting plates 1b, a second outlet 10b arranged on the slope-shaped material receiving shell 9b, a sealing cover 3b arranged on the top surface of the group of horizontal supporting plates 1b, a dust collecting guide cover 4b arranged on the sealing cover 3b, a guide pipe 5b arranged on the dust collecting guide cover 4b, a strip-shaped sealing curtain fixing plate 7b arranged on one end of the sealing cover 3b, and a plurality of sealing curtains 8b arranged on the strip-shaped sealing curtain fixing plate 7b, a driving motor mounting plate 13b disposed on an outer wall of one side of the sealing cover 3b, a driving motor 14b disposed on the driving motor mounting plate 13b, a driving wheel 15b disposed on the driving motor 14b, a plurality of first bearing fixing grooves 23b symmetrically disposed in the middle of a plurality of horizontal support plates 1b, first bearings 24b disposed in the plurality of first bearing fixing grooves 23b, driving shaft holes 25b disposed in the middle of a plurality of horizontal support plates 1b and used in cooperation with the plurality of first bearing fixing grooves 23b, a driving shaft 17b having both ends penetrating the first bearings 24b and the driving shaft holes 25b, a plurality of second bearing fixing grooves 26b symmetrically disposed in the middle of a plurality of horizontal support plates 1b and disposed at both sides of the plurality of first bearing fixing grooves 23b, and second bearings 27b disposed in the plurality of second bearing fixing grooves 26b, and a plurality of groups of transmission shaft holes 28b respectively arranged in the middle of a group of transverse supporting plates 1b and positioned at two sides of the driving shaft hole 25b, a plurality of transmission shafts 20b respectively penetrating through the second bearing 27b and the plurality of groups of transmission shaft holes 28b, screening shaft sleeves 30 respectively arranged on the driving shaft 17b and the plurality of transmission shafts 20b, a plurality of screening material bulges 29b arranged on the outer wall of the screening shaft sleeves 30b, auxiliary driving wheels 19b and driven wheels 21b respectively arranged on the driving shaft 17b and the plurality of transmission shafts 20b, a transmission belt 22b respectively connected with the auxiliary driving wheels 19b and the driven wheels 21b, a linkage wheel 18b arranged on the driving shaft 17b, and a driving belt 16b respectively connected with the driving wheels 15b and the linkage wheel 18 b.
Example two
As an embodiment, the primary feeding assembly of the machine-made sand manufacturing method shown in fig. 1 to 4 further includes an inclined feeding housing 28 disposed at the other side of the concrete floor 1, an inclined feeding housing inlet 29 disposed at the outer wall of one side of the inclined feeding housing 28, a set of primary crushing bearing mounting blocks 19 symmetrically disposed at the end surfaces of the two ends of the concrete floor 1, primary crushing bearings 20 respectively disposed in the set of primary crushing bearing mounting blocks 19, a primary crushing shaft 24 having two ends respectively penetrating through the primary crushing bearings 20, a plurality of primary crushing knives 25 disposed at the outer wall of the primary crushing shaft 24, a primary crushing motor mounting plate 21 disposed at the end surface of one end of the concrete floor 1, a primary crushing motor 23 disposed on the primary crushing motor mounting plate 21, and a first primary crushing shaft coupler 33 respectively connected to the primary crushing shaft 24 and the primary crushing motor 23, the structural design can be used for pretreating multiple raw materials of machine-made sand to be treated, so that the subsequent crushing and mixing treatment efficiency is improved.
EXAMPLE III
As a third preferred embodiment, the primary feeding assembly of the machine-made sand preparation method shown in fig. 4 further includes an auxiliary primary crushing motor mounting plate 22 disposed on the other end surface of the concrete floor 1, an auxiliary primary crushing motor 27 disposed on the auxiliary primary crushing motor mounting plate 22, and a second primary crushing shaft coupler 26 respectively connected to the primary crushing shaft 24 and the auxiliary primary crushing motor 27, wherein the auxiliary primary crushing motor 27 serves as a backup motor for the primary crushing motor 23, so as to ensure that the primary crushing pretreatment operation can be performed uninterruptedly.
Example four
As a third preferred embodiment, the primary feeding assembly of the machine-made sand manufacturing method shown in fig. 2 further includes a horizontal dust-guard plate 34 disposed on the outer wall of one side of the upper portion of the horizontal bar-shaped concrete partition plate 5, a chevron-shaped air duct 30 connected to the inclined feeding shell 28 and the horizontal dust-guard plate 34, and a chevron-shaped air duct connector 31 disposed on the chevron-shaped air duct 30.
EXAMPLE five
The method for preparing machine-made sand as shown in fig. 9-10, on the basis of the fourth embodiment, further comprises a dust removing assembly respectively matched with the primary crushing material conveying assembly, the vertical crushing assembly and the sieving machine, wherein the dust removing assembly comprises a box body 1c, supporting leg fixing blocks 2c arranged at four corners of the bottom surface of the box body 1c, supporting legs 3c respectively connected with the supporting leg fixing blocks 2c, an open type protective shell 4c arranged at the bottom surface of the box body 1c, a thread connecting sleeve 5c arranged at the upper part of the box body 1c, an internal thread sealing cover 6c connected with the thread connecting sleeve 5c, an external thread connecting block 7c connected with the thread connecting sleeve 5c, a rotary hand-held part 8c and a dust removing bag 9c respectively arranged at two sides of the external thread connecting block 7c, an air inlet 11c arranged at the middle part of the dust removing bag 9c, and an outlet 10c arranged at one end of the dust removing bag 9c, a first connecting flange 12c connected with the air inlet 11c, a group of strip-shaped positioning plates 13c arranged on the inner wall of the upper part of the box body 1c, a sealing cover 14c respectively connected with the group of strip-shaped positioning plates 13c, a first through hole 15c, a second through hole 30c, a concave dust collecting shell 17c, a sealing cover air outlet 23c and a dust outlet 18c which are arranged on the bottom surface of the concave dust collecting shell 17c and protrude out of the open type protective shell 4c, wherein the air inlet 11c and the dust collecting bag 9c are respectively matched with the first through hole 15c and the second through hole 30c for use, the second connecting flange 20c connected with the first connecting flange 12c, the second connecting flange 20c with one end connected with the second connecting flange 20c and the other end penetrating through the box body 1c, an air outlet pipe 22c arranged on the box body 1c, and a fixing plate 24c arranged on the outer wall of one side of the box body 1c, a motor mounting seat 25c arranged on the fixing plate 24c, a motor 26c arranged on the motor mounting seat 25c, a blade sleeve 27c arranged at one end of the motor 26c and positioned in the box body 1c, a plurality of blades 29c, blade sleeve fixing bolts 28c, a perforated air guide cover 16c with two ends respectively connected with the inner wall of the box body 1c and the outer wall of the sealing cover 14c, wherein one end of an air outlet pipe 22c is connected with the perforated air guide cover 16c, an inclined reinforcing plate 19c arranged at the upper outer wall of the other side of the box body 1c and connected with an air inlet pipe 21c, and a plurality of inclined reinforcing fixing plates 31c arranged at the lower inner wall of the box body 1c and connected with the sealing cover 14c, wherein a herringbone air guide pipe interface 31, a guide pipe 5b and a guide pipe with an air inlet head 29a are respectively connected with the air inlet pipe 21c through an auxiliary air guide pipe Stable and safe dust removal treatment, and adsorption treatment of dust generated in operation, so as to meet the production and processing requirements of protected machine-made sand.
EXAMPLE six
As a fifth preferred embodiment, the primary crushing and material conveying assembly of the machine-made sand preparation method shown in fig. 2 further includes an arc-shaped filter plate 32 disposed in the concrete floor 1 and located below the primary crushing shaft 24 and the plurality of primary crushing knives 25, the aperture size of the arc-shaped filter plate 32 can be changed as required, that is, the primary filtering and screening function is achieved, and mixed machine-made sand meeting the primary crushing requirement during primary crushing leaks from the arc-shaped filter plate 32 and enters the next process for treatment.
According to the embodiment of the invention, the circular inclined material guide pipe aggregate shell 7 is positioned below the primary crushing shaft 24 or the arc-shaped filter plate 32, the circular inclined material guide pipe outlet 8 is hermetically connected with the feeding hole 9a, the discharging hole 11a is positioned above the inclined feeding plate 6b, the second outlet 10b screens out the machine-made sand meeting the particle requirement, and the machine-made sand raw material of the first outlet 12b, which does not meet the particle requirement, is circularly processed through the inclined feeding shell inlet 29.
The machine-made sand is prepared by mixing and crushing two or three or four of limestone, tuff, granite and pebble, wherein the ratio of the four components is 1:0.5-0.8:1.2-1.5: 0.5-1.
Preferably, the finished machine-made sand product further comprises portland cement, lime powder, water, vitrified micro bubbles, latex powder, sodium dodecyl sulfate, sodium gluconate and a flowing agent, and the finished machine-made sand product is mixed with the finished machine-made sand product to prepare machine-made sand mortar.
The machine-made sand and the preparation method thereof have the advantages of reasonable design, high automation degree of the sand making production process, low operation cost, high sand making rate, energy conservation, high yield, less pollution and simple and convenient maintenance, the machine-made sand produced by the sand making meets the national building sand standard, the granularity is uniform, the grain shape is good, the grading is reasonable, and the prepared machine-made sand mixed mortar meets the requirements of the on-site use standard.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.

Claims (10)

1. A machine-made sand, characterized in that: the limestone-aggregate concrete is prepared by mixing and crushing two or three or four of limestone, tuff, granite and pebble, wherein the ratio of the four components is 1:0.5-0.8:1.2-1.5: 0.5-1.
2. The manufactured sand of claim 8, wherein: the machine-made sand finished product also comprises portland cement, lime powder, water, vitrified micro-beads, latex powder, sodium dodecyl sulfate, sodium gluconate and a flowing agent, and the machine-made sand finished product is mixed with the machine-made sand finished product to prepare the machine-made sand mortar.
3. The method of manufacturing machine-made sand according to claim 1 or 2, characterized in that: comprises the following steps of (a) preparing a mixture,
step 1, a primary material conveying component, namely spirally mixing and conveying two or three or four kinds of mixed raw material sand to a vertical crushing component, wherein primary mixing action is completed during spiral mixing and conveying;
step 2, feeding the mixed raw material sand obtained in the step 1 into a vertical crushing assembly, and enabling the vertical crushing assembly to act on the mixed raw material sand;
and 3, screening the crushed raw materials in the step 2, wherein the screened raw material sand which does not meet the requirement enters the primary material conveying assembly again for circular treatment.
4. The method of claim 3, wherein the method comprises the steps of: the primary material conveying component comprises a material collecting groove (2) arranged in the end face of the concrete ground (1), a horizontal bar-shaped concrete partition plate (5) which is arranged on the concrete ground (1) and has two ends protruding out of the material collecting groove (2), a plurality of vertical material conveying pipe support plates (4) arranged on one side of the concrete ground (1), a circular inclined material conveying pipe (6) arranged on the plurality of vertical material conveying pipe support plates (4), a circular inclined material conveying pipe material collecting shell (7) arranged at two ends of the circular inclined material conveying pipe (6), a circular inclined material conveying pipe outlet (8), a material conveying bearing fixing block (9) arranged on the end face of one end of the circular inclined material conveying pipe (6), a material conveying shaft through hole (15) and a material conveying bearing mounting groove (10) which are respectively arranged in the material conveying bearing fixing block (9), and a material conveying bearing (11) arranged in the material conveying bearing mounting groove (10), the feeding motor mounting plate (12) is arranged on the end face of one end of the circular inclined feeding pipe (6) and is positioned below the feeding bearing fixing block (9), the feeding motor (14) is arranged on the feeding motor mounting plate (12), the feeding shaft (17) is arranged in the circular inclined feeding pipe (6), the feeding shaft coupler (13) is arranged at one end of the feeding shaft (17) and is connected with the feeding motor (14), and the spiral feeding teeth (18) are arranged on the feeding shaft (17), wherein one ends of the feeding shaft (17) and the spiral feeding teeth (18) extend out of the collecting shell (7) of the circular inclined feeding pipe; the vertical crushing assembly comprises a strip-shaped bottom plate (1 a), two groups of vertical supporting legs (2 a) symmetrically arranged at two ends of the strip-shaped bottom plate (1 a), positioning blocks (3 a) arranged at one ends of the two groups of vertical supporting legs (2 a), a plurality of fixing holes (4 a) respectively arranged in the positioning blocks (3 a), vertical barrel fixing holes (5 a) arranged in the strip-shaped bottom plate (1 a), vertical crushing barrels (6 a) arranged in the vertical barrel fixing holes (5 a) through a plurality of bolts (7 a), a material distributing box (8 a) arranged on the vertical crushing barrels (6 a), a material inlet (9 a) respectively arranged on the material distributing box (8 a) and the vertical crushing barrels (6 a), a slope surface sealing cover (10 a), a material outlet (11 a) arranged on the slope surface sealing cover (10 a), and a fixing block (14 a) arranged on the material distributing box (8 a), a bearing fixing groove (15 a) arranged on the fixing block (14 a), a crushing shaft through hole (16 a), a bearing (17 a) arranged in the bearing fixing groove (15 a), a crushing shaft (28 a) with one end positioned in the material distribution box (8 a) and the vertical crushing cylinder body (6 a) and the other end penetrating through the crushing shaft through hole (16 a) and the bearing (17 a), a driven wheel (23 a) arranged at one end of the crushing shaft (28 a), a hollow wear-resistant aggregate sleeve (13 a) arranged in the vertical crushing cylinder body (6 a), a driving motor seat (20 a) arranged at one end face of the strip-shaped bottom plate (1 a), a driving motor (21 a) arranged on the driving motor seat (20 a), a driving wheel (22 a) arranged on the driving motor (21 a), and a transmission belt (24 a) with two ends respectively connected with the driven wheel (23 a) and the driving wheel (22 a), the crushing device comprises a crushing shaft (28 a), a plurality of material distributing rods (18 a), a plurality of crushing impact blocks (19 a), a filter plate (26 a), a plurality of sand through holes (27 a), a plurality of material distributing plates (25 a), a wear-resistant sheath (12 a), an air inlet head guide pipe (29 a), a plurality of material distributing rods (18 a), a plurality of crushing impact blocks (19 a), a plurality of sand through holes (27 a), a plurality of material distributing plates (25 a), a wear-resistant sheath (12 a) and a plurality of air inlet head guide pipes (29 a), wherein the material distributing rods (18 a) and the crushing impact blocks (19 a) are arranged on the crushing shaft (28 a) and are positioned in a material distributing box (8 a) and a vertical crushing cylinder (6 a); the screening machine comprises a group of transverse supporting plates (1 b), a group of vertical supporting plates (2 b) respectively arranged on the bottom surfaces of two ends of the group of transverse supporting plates (1 b), an inclined feeding plate (6 b) arranged at one end of the group of transverse supporting plates (1 b), a sealed material receiving box (11 b) arranged at the other end of the group of transverse supporting plates (1 b) and the group of vertical supporting plates (2 b), a first outlet (12 b) arranged on the sealed material receiving box (11 b), a slope-shaped material receiving shell (9 b) arranged on the bottom surface of the group of transverse supporting plates (1 b), a second outlet (10 b) arranged on the slope-shaped material receiving shell (9 b), a sealing cover (3 b) arranged on the top surface of the group of transverse supporting plates (1 b), a dust collecting guide cover (4 b) arranged on the sealing cover (3 b), and a guide pipe (5 b) arranged on the dust collecting guide cover (4 b), and a bar-shaped sealing curtain fixing plate (7 b) arranged at one end of the sealing cover (3 b), a plurality of sealing curtains (8 b) arranged on the bar-shaped sealing curtain fixing plate (7 b), a driving motor mounting plate (13 b) arranged on the outer wall of one side of the sealing cover (3 b), a driving motor (14 b) arranged on the driving motor mounting plate (13 b), a driving wheel (15 b) arranged on the driving motor (14 b), a group of first bearing fixing grooves (23 b) symmetrically arranged in the middle of a group of transverse supporting plates (1 b), first bearings (24 b) respectively arranged in a group of first bearing fixing grooves (23 b), and driving shaft holes (25 b) respectively arranged in the middle of a group of transverse supporting plates (1 b) and matched with the group of first bearing fixing grooves (23 b) for use, and two ends respectively penetrating through the first bearings (24 b), Drive shaft (17 b) in drive shaft hole (25 b), and the symmetry sets up in a set of horizontal support board (1 b) middle part and be located a plurality of groups second bearing fixed slot (26 b) of a set of first bearing fixed slot (23 b) both sides, and set up second bearing (27 b) in a plurality of groups second bearing fixed slot (26 b) respectively, and set up in a set of horizontal support board (1 b) middle part and be located a plurality of groups transmission shaft hole (28 b) of drive shaft hole (25 b) both sides respectively, and run through second bearing (27 b) respectively, a plurality of transmission shaft (20 b) in a plurality of group transmission shaft hole (28 b), and set up respectively at drive shaft (17 b), screening axle sleeve (30) on a plurality of transmission shaft (20 b), and set up at a plurality of screening material arch (29 b) of screening axle sleeve (30 b) outer wall, and set up respectively at drive shaft (17 b), Auxiliary driving wheels (19 b) and driven wheels (21 b) on the transmission shafts (20 b), transmission belts (22 b) respectively connected with the auxiliary driving wheels (19 b) and the driven wheels (21 b), linkage wheels (18 b) arranged on the driving shafts (17 b), and driving belts (16 b) respectively connected with the driving wheels (15 b) and the linkage wheels (18 b).
5. The manufacturing line of machine-made sand according to claim 4, characterized in that: the primary material conveying assembly further comprises an inclined feeding shell (28) arranged on the other side of the concrete ground (1), an inclined feeding shell inlet (29) arranged on the outer wall of one side of the inclined feeding shell (28), a group of primary crushing bearing mounting blocks (19) symmetrically arranged on the end faces of two ends of the concrete ground (1), primary crushing bearings (20) respectively arranged in the group of primary crushing bearing mounting blocks (19), primary crushing shafts (24) with two ends respectively penetrating through the primary crushing bearings (20), a plurality of primary crushing cutters (25) arranged on the outer wall of the primary crushing shafts (24), primary crushing motor mounting plates (21) arranged on the end faces of one end of the concrete ground (1), primary crushing motors (23) arranged on the primary crushing motor mounting plates (21), and primary crushing shafts (24), a first primary crushing shaft coupler (33) connected with the primary crushing motor (23).
6. The method of claim 4, wherein the method comprises the steps of: the primary material conveying assembly further comprises an auxiliary primary crushing motor mounting plate (22) arranged on the end face of the other end of the concrete ground (1), an auxiliary primary crushing motor (27) arranged on the auxiliary primary crushing motor mounting plate (22), and a second primary crushing shaft coupler (26) connected with a primary crushing shaft (24) and the auxiliary primary crushing motor (27) respectively.
7. The method of claim 6, wherein the method comprises the steps of: the primary material conveying assembly further comprises a transverse dust baffle (34) arranged on the outer wall of one side of the upper portion of the transverse bar-shaped concrete partition plate (5), a herringbone air guide pipe (30) connected with the inclined feeding shell (28) and the transverse dust baffle (34) respectively, and a herringbone air guide pipe interface (31) arranged on the herringbone air guide pipe (30).
8. The method of claim 4, wherein the method comprises the steps of: the device also comprises a dust removal assembly which is respectively matched with the primary crushing material conveying assembly, the vertical crushing assembly and the sieving machine for use, wherein the dust removal assembly comprises a box body (1 c), supporting leg fixing blocks (2 c) arranged at four corners of the bottom surface of the box body (1 c), supporting legs (3 c) respectively connected with the supporting leg fixing blocks (2 c), an open type protective shell (4 c) arranged at the bottom surface of the box body (1 c), a thread connecting sleeve (5 c) arranged at the upper part of the box body (1 c), an internal thread sealing cover (6 c) connected with the thread connecting sleeve (5 c), an external thread connecting block (7 c) connected with the thread connecting sleeve (5 c), rotary handheld parts (8 c) respectively arranged at two sides of the external thread connecting block (7 c), a dust removal bag (9 c) and an air inlet (11 c) arranged at the middle part of the dust removal bag (9 c), an outlet (10 c) arranged at one end of the dust bag (9 c), a first connecting flange (12 c) connected with the air inlet (11 c), a group of strip-shaped positioning plates (13 c) arranged on the inner wall of the upper part of the box body (1 c), a sealing cover (14 c) respectively connected with the group of strip-shaped positioning plates (13 c), a first through hole (15 c), a second through hole (30 c), a concave dust collecting shell (17 c), a sealing cover air outlet (23 c) respectively arranged on the sealing cover (14 c), a dust outlet (18 c) arranged at the bottom surface of the concave dust collecting shell (17 c) and protruding out of the protective shell (4 c), wherein the air inlet (11 c) and the dust bag (9 c) are respectively matched with the first through hole (15 c) and the second through hole (30 c) for use, and the second connecting flange (20 c) connected with the first connecting flange (12 c) in an open mode, an air inlet pipe (21 c) with one end connected with a second connecting flange (20 c) and the other end penetrating through the box body (1 c), an air outlet pipe (22 c) arranged on the box body (1 c), a fixing plate (24 c) arranged on the outer wall of one side of the box body (1 c), a motor mounting seat (25 c) arranged on the fixing plate (24 c), a motor (26 c) arranged on the motor mounting seat (25 c), a blade sleeve (27 c) arranged at one end of the motor (26 c) and positioned in the box body (1 c), a plurality of blades (29 c), blade sleeve fixing bolts (28 c), and a perforated air guide cover (16 c) with two ends respectively connected with the inner wall of the box body (1 c) and the outer wall of the sealing cover (14 c), wherein one end of the air outlet pipe (22 c) is connected with the perforated air guide cover (16 c), and an inclined plate (19 c) arranged on the outer wall of the upper part of the other side of the box body (1 c) and connected with the air inlet pipe (21 c), and a plurality of inclined reinforcing fixing plates (31 c) which are arranged on the inner wall of the lower part of the box body (1 c) and connected with the sealing cover (14 c), wherein the herringbone air guide pipe interface (31), the guide pipe (5 b) and the guide pipe (29 a) with the air inlet head are respectively connected with the air inlet pipe (21 c) through auxiliary air conveying guide pipes.
9. The method of claim 7, wherein the method comprises the steps of: the primary crushing and material conveying assembly of the machine-made sand preparation production line further comprises an arc-shaped filter plate (32) which is arranged in the concrete ground (1) and is positioned below the primary crushing shaft (24) and the plurality of primary crushing knives (25).
10. The method of claim 4, wherein the method comprises the steps of: circular slant passage shell (7) of gathering materials is located primary crushing axle (24) or arc filter plate (32) below, circular slant passage export (8) and feed inlet (9 a) sealing connection, and discharge gate (11 a) are located oblique feed plate (6 b) top, and the mechanism sand that accords with the granule requirement is selected in second export (10 b), and the mechanism sand raw materials that does not accord with to close the granule requirement of first export (12 b) are carried out circulation processing by oblique feed shell import (29).
CN202110399049.9A 2021-04-14 2021-04-14 Machine-made sand and preparation method thereof Active CN113511830B (en)

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