CN114932625B - Novel treatment method of low-water-content saw mud for concrete - Google Patents

Novel treatment method of low-water-content saw mud for concrete Download PDF

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Publication number
CN114932625B
CN114932625B CN202210439574.3A CN202210439574A CN114932625B CN 114932625 B CN114932625 B CN 114932625B CN 202210439574 A CN202210439574 A CN 202210439574A CN 114932625 B CN114932625 B CN 114932625B
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China
Prior art keywords
saw mud
screening
piece
stirring
concrete
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CN202210439574.3A
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Chinese (zh)
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CN114932625A (en
Inventor
李松
张可可
谢颉
梁寒琴
彭莉
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Wuhan Huaqiang New Building Materials Co ltd
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Wuhan Huaqiang New Building Materials Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/003Methods for mixing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/06Cone or disc shaped screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/003Methods for mixing
    • B28C5/006Methods for mixing involving mechanical aspects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • B28C5/148Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying a plurality of radially extending mixing bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04Supplying or proportioning the ingredients
    • B28C7/06Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
    • B28C7/10Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of rotary members, e.g. inclinable screws
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The application relates to the technical field of concrete production, and particularly discloses a novel method for treating low-water-content saw mud for concrete, which comprises the following steps of screening and scattering, and screening and scattering the saw mud in stock; rolling the saw mud, and rolling the saw mud after sieving to obtain saw mud particles with the particle size not exceeding 15 mm; pre-mixing concrete, namely replacing part of coal ash and fine sand in the original components of the concrete with saw mud particles, and stirring to obtain a new concrete product; utilize the mixing plant to stir and sieve saw mud, the mixing plant includes sorting mechanism and is used for giving the feed mechanism of rabbling mechanism material loading, sorting mechanism is including the stirring portion that is used for carrying out the screening to saw mud granule and is used for mixing saw mud. The application has the effects of improving the sieving and scattering effects of the saw mud particles, improving the work efficiency, effectively utilizing the saw mud and saving energy and protecting environment.

Description

Novel treatment method of low-water-content saw mud for concrete
Technical Field
The application relates to the technical field of concrete production, in particular to a novel method for treating low-water-content saw mud for concrete.
Background
The ready-mixed concrete is the material with the largest dosage in the building material industry at present, and the admixture such as fly ash is in shortage at present, and the natural fine sand is not supplied enough. The saw mud is applied to concrete, so that the current situation of insufficient supply of fly ash and fine sand resources can be relieved, and the saw mud can be effectively utilized, so that the method has good economic and social benefits.
The related art Chinese patent with the application number of CN202110802540.1 proposes a method for producing ready-mixed concrete by using stone saw mud, which is suitable for producing concrete with various strength grades for building construction and municipal engineering. Then saw mud particles with water content of 2035%, methylene blue value of less than 1.0, sand content of 1525% and powder content of 40% and 65% are selected, the saw mud particles are adopted to replace coal ash and part of fine sand, part or all of the coal ash is replaced in the proportion, and the rest is used for replacing part of sand, so that concrete of various grades meeting the requirements is produced. The pre-mixed concrete produced by using the pretreated stone sawing mud has the characteristics of low production cost, large usage amount, green environmental protection and the like.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: when the saw mud is pretreated, the saw mud is required to be screened and then scattered, and finally, rolling, screening and scattering are carried out, so that the defect of reducing the working efficiency exists.
Disclosure of Invention
In order to solve the problems of complex working procedures and low work efficiency, the application provides a novel method for treating low-water-content saw mud for concrete.
The application provides a novel treatment method of low-water-content saw mud for concrete, which adopts the following technical scheme:
a method for treating novel low-water-content saw mud for concrete comprises the following steps,
Screening and scattering, namely screening and scattering the saw mud in stock;
Rolling the saw mud, and rolling the saw mud after sieving to obtain saw mud particles with the particle size not exceeding 15 mm;
Pre-mixing concrete, namely replacing part of coal ash and fine sand in the original components of the concrete with saw mud particles, and stirring to obtain a new concrete product;
Utilize the mixing plant to stir and sieve saw mud, the mixing plant includes sorting mechanism and is used for giving the feed mechanism of rabbling mechanism material loading, sorting mechanism is including the stirring portion that is used for carrying out the screening to saw mud granule and is used for mixing saw mud.
Through adopting above-mentioned technical scheme, carry saw mud granule to sorting mechanism position through feed mechanism, utilize sorting mechanism to sieve saw mud granule and break up, the screening portion is selected separately the material this moment, stirring portion stirs the material, for sieving saw mud granule in the stirring in-process promptly, the process has been saved, the work efficiency has been promoted, utilize saw mud granule whole or partial to replace fly ash, other replacement part fine sand, thereby realize the effect of the variable fertilizer dimension of saw mud, have with low costs and green's effect.
Optionally, screening portion includes box and screening spare, the box is provided with the inner chamber just stirring portion is located in the inner chamber, the feed opening has been seted up to bottom of the case lateral wall, screening spare install in feed opening department.
Through adopting above-mentioned technical scheme, under the effect of stirring portion, saw mud granule is in stirring in-process, and screening piece screens saw mud granule, and saw mud granule that accords with the size requirement drops from the feed opening, realizes the screening effect to saw mud granule.
Optionally, feed mechanism includes feed cylinder, hopper, spiral leaf and power spare, the feed inlet has been seted up to feed cylinder bottom lateral wall, the discharge gate has been seted up to feed cylinder top lateral wall, the feed cylinder for the slope setting just the discharge gate stretches into in the cavity of box, the spiral leaf with the feed cylinder rotates to be connected, the power spare is used for the drive the spiral leaf, the hopper install in the feed cylinder is close to feed inlet department.
Through adopting above-mentioned technical scheme, pour saw mud granule into in the hopper, the power piece drives the spiral leaf and drives, and the spiral leaf drives saw mud granule and moves towards the discharge gate, and saw mud granule falls to the intracavity of box in the discharge gate, accomplishes the material loading work to saw mud granule.
Optionally, the screening piece sets up to a plurality of, and a plurality of screening piece activity set up in the box is close to feed opening department, a plurality of the aperture of screening piece is different.
Through adopting above-mentioned technical scheme, a plurality of screening pieces can guarantee the demand of not unidimensional saw mud granule at the change in-process, also can realize sieving saw mud granule and take out.
Optionally, the screening piece sets up to the arc, the box inner wall is close to the feed opening both sides have all been seted up the arc slide, two the arc slide is followed the radial direction interval setting of box, the screening piece slides respectively and sets up in corresponding in the arc slide, the arc slide with feed opening intercommunication and the length dimension of cross-section circular arc are greater than the opening size of feed opening, the box is provided with the drive screening piece gliding drive assembly.
Through adopting above-mentioned technical scheme, drive assembly drives screening piece at arc slide motion, and screening piece moves towards the feed opening this moment, and needs to notice, and screening piece both ends all need be in the arc slide of feed opening both sides.
Optionally, the drive assembly includes arc tooth and driving tooth, arc tooth with screening spare outer wall fixed connection, the box seted up with correspond the drive slot of arc slide intercommunication, the driving tooth with the box rotates to be connected and pass behind the drive slot with arc tooth meshing is connected.
Through adopting above-mentioned technical scheme, when the driving tooth drives the motion of arc tooth, the arc tooth drives screening piece at the intraductal motion of arc slide, and need notice, the arc slide size of this side of drive slot is greater than the opposite side, is convenient for provide sufficient space for the arc slide and makes it slide.
Optionally, the stirring portion includes (mixing) shaft and a plurality of stirring piece, the (mixing) shaft with the box rotates to be connected, a plurality of the stirring piece install in the (mixing) shaft outer wall, the box also is provided with the drive the (mixing) shaft pivoted power piece.
Through adopting above-mentioned technical scheme, power spare drives the (mixing) shaft and rotates, and the stirring piece rotates along with the (mixing) shaft, realizes that the stirring piece breaks up the effect to the stirring of saw mud granule.
Optionally, the box is close to the discharge gate department of material loading section of thick bamboo is provided with ejection mechanism, ejection mechanism include slide in the ejector blade of box inner wall, be used for providing the elastic component of ejector blade elasticity and be used for realizing the promotion subassembly that the elastic component warp.
Through adopting above-mentioned technical scheme, when saw mud granule enters into on the ejector blade from the discharge gate, the elastic component is compressed this moment, and under the effect of pushing the subassembly, realizes the effect of holding up the power to the ejector blade, and the ejector blade of being convenient for is applied the effect of first breaking up to saw mud granule at the in-process of catapulting, promotes and breaks up efficiency.
Optionally, the box inner wall fixedly connected with slide bar, the one end cover of ejection piece is located outside the slide bar, the both ends of elastic component respectively with the box with ejection piece fixed connection, the promotion subassembly includes slider and expansion piece, the slider with the ejection piece is close to the one end fixed connection of slide bar, the box has been seted up and has been used for the gliding spout of slider, the both ends of spout are closed setting, the slider orientation one side of discharge gate with expansion piece fixed connection, the other end of expansion piece with spout tip inner wall fixed connection, expansion piece connection is with being located the outer inflation component of box, ejection piece initial position is located the discharge gate below.
Through adopting above-mentioned technical scheme, through aerifing the expansion piece, the expansion piece takes place to expand, extrudees the slider this moment, and the elastic component is compressed by further, carries out the pressure release to the expansion piece this moment, under the elasticity effect of spring, the ejector blade pops out upwards.
Optionally, the box below is provided with the transport mechanism that is used for carrying saw mud towards rolling the process, transport mechanism includes the conveyer belt and is used for the drive assembly of conveyer belt motion, a plurality of dividing the harrow is installed to the conveyer belt top, and is a plurality of divide the harrow to be followed conveyer belt length direction distributes.
Through adopting above-mentioned technical scheme, under the effect of adjacent feed divider harrow, saw mud granule on the conveyer belt stirs the effect many times, and then realizes reducing saw mud granule caking's probability.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the sawing mud particles are conveyed to the position of the sorting mechanism through the feeding mechanism, the sorting mechanism is used for sorting and scattering the sawing mud particles, at the moment, the sorting part sorts the materials, and the stirring part stirs the materials, namely, the sawing mud particles are screened in the stirring process, so that the working procedures are saved, and the work efficiency is improved;
2. when the driving teeth drive the arc teeth to move, the arc teeth drive the screening piece to move in the arc-shaped slideway, and the size of the arc-shaped slideway on one side of the driving groove is larger than that on the other side, so that enough space is provided for the arc-shaped slideway to enable the arc-shaped slideway to slide;
3. When the saw mud particles enter the ejection sheet from the discharge hole, the elastic piece is compressed at the moment, and under the action of the pushing component, the force storage effect on the ejection sheet is realized, the effect that the ejection sheet breaks up the saw mud particles for the first time in the ejection process is convenient, and the breaking efficiency is improved.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present application;
FIG. 2 is a schematic overall structure of an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
fig. 5 is an enlarged schematic view of a portion B in fig. 3.
Reference numerals: 1. a sorting mechanism; 2. a feeding mechanism; 3. a case; 4. a screening element; 5. a feed opening; 6. a feeding cylinder; 7. a hopper; 8. spiral leaves; 9. a power member; 10. a feed inlet; 11. a discharge port; 12. an arc-shaped slideway; 13. arc teeth; 14. a drive tooth; 15. a driving groove; 16. a stirring shaft; 17. stirring sheets; 18. an ejector blade; 19. an elastic member; 20. a slide block; 21. a slide bar; 22. an expansion member; 23. a chute; 24. an inflation assembly; 25. a conveyor belt; 26. a material dividing rake; 27. a support rod; 28. and a material distributing rod.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a novel method for treating low-water-content saw mud for concrete. Referring to fig. 1 and 2, a novel method for treating a low water content saw mud for concrete includes the steps of,
S1, screening and scattering, namely screening and scattering the saw mud in stock;
S2, rolling the saw mud, and rolling the saw mud after sieving to obtain saw mud particles with the particle size not more than 15 mm;
S3, pre-mixing the concrete, replacing part of coal ash and fine sand in the original components of the concrete with saw mud particles, and stirring to obtain a new concrete product; in the embodiment, the concrete components are adopted, the cementing material, sand, saw mud particles, broken stone, water and an additive are added and stirred according to the raw material proportion, so that the ready-mixed concrete is obtained, the saw mud particles are utilized to replace the fly ash completely or partially, and other parts of fine sand are replaced, so that the effects of changing fertilizer and maintaining the saw mud are realized, and the effects of low cost and environmental protection are realized.
Referring to fig. 2 and 3, in order to reduce the process and improve the efficiency, in this embodiment, in S1, the sawing sludge is simultaneously sieved and broken up, and the stirring device is used for stirring and sieving the sawing sludge, and the stirring device comprises a sorting mechanism 1 and a feeding mechanism 2 for feeding the stirring mechanism, wherein the sorting mechanism 1 comprises a sieving part for sieving the sawing sludge particles and a stirring part for stirring the sawing sludge particles; screening cloth includes box 3 and screening piece 4, and box 3 is provided with the inner chamber, and stirring portion is located the cavity, and box 3 is close to the cavity setting arc in stirring portion, and the stirring portion of being convenient for stirs saw mud granule, and feed opening 5 has been seted up to the lateral wall of the bottom of box 3, and screening piece 4 is installed in feed opening 5 departments.
The screening piece 4 is preferably a screen in this embodiment, and the screening piece 4 is set to be circular arc, the centre of a circle of the cross-section circular arc of the cavity in the box 3 is concentric with the cross-section circular arc of the screening piece 4, in this embodiment, the screening piece 4 can be set to be a plurality of screening pieces 4, the aperture of a plurality of screening pieces 4 is different, the screening pieces 4 are used for screening saw mud particles with different sizes, in this embodiment, the number of the screening pieces 4 is set to be two, and the two screening pieces 4 are respectively located at two sides of the feed opening 5, and are movably set with the box 3, the two screening pieces 4 are respectively used for screening the needed size of the screening particles and the screened large-size particles, after the small-size aperture screening piece 4 screens the saw mud particles, the large-size aperture screening piece 4 is replaced to the feed opening 5, and the large-size saw mud particles are cleaned out of the box 3 at this time.
Referring to fig. 3 and 4, the inner wall of the box 3 is close to two sides of the blanking port 5 and is provided with arc slide ways 12, two arc slide ways 12 are arranged along the radial direction of the box 3 at intervals, the screening pieces 4 are respectively arranged in the corresponding arc slide ways 12 in a sliding manner, the arc slide ways 12 are communicated with the blanking port 5, the length dimension of the section arc is larger than the opening dimension of the blanking port 5, namely, the arc slide ways 12 are divided into two parts by the blanking port 5, therefore, the arc slide ways 23 are communicated with the side wall of the blanking port 5, when the screening pieces 4 move to the blanking port 5, two ends of the screening pieces 4 are respectively positioned at two sides of the blanking port 5 at the moment, the supporting and stabilizing effect of the screening pieces 4 is ensured, and the two screening pieces 4 are respectively positioned in the two arc slide ways 12, so that in the replacement process of the screening pieces 4, the two screening pieces 4 are not affected by each other.
The box 3 is provided with the drive assembly that is used for driving screening piece 4 gliding, drive assembly includes arc tooth 13 and drive tooth 14, arc pond and screening piece 4 outer wall fixed connection or screening piece 4's one end fixed connection, drive slot 15 has been seted up to the box 3, drive slot 15 sets up to convex, drive slot 15 and arc slide 12 intercommunication setting, drive slot 15 is close to the one end setting of feed opening 5 for the opening, the other end is closed setting, drive tooth 14 rotates with box 3 to be connected, and pass behind the drive slot 15 with arc tooth 13 meshing be connected, arc tooth 13 slides in drive slot 15, drive slot 15 opening size is less than screening piece 4's terminal surface size, drive tooth 14 can be driven by motor or manual drive, this embodiment is the servo motor drive preferably.
When the driving teeth 14 are driven to rotate, the driving teeth 14 drive the arc-shaped teeth 13 to rotate, the arc-shaped teeth 13 drive the screening piece 4 to start sliding, the screening piece 4 slides in the arc-shaped slide ways 12, the screening piece 4 passes through the feed opening 5 to continue sliding until both ends of the screening piece 4 are located in the corresponding arc-shaped slide ways 12, and at the moment, the other screening piece 4 is moved away from the position of the feed opening 5, so that the replacement effect of the screening piece 4 is completed.
Referring to fig. 3 and 5, the feeding mechanism 2 comprises a feeding cylinder 6, a stub bar, a spiral blade 8 and a power piece 9, wherein a feeding hole 10 is formed in the side wall of the bottom end of the feeding cylinder 6, a discharging hole 11 is formed in the side wall of the top end of the feeding cylinder 6, the discharging hole 11 and the feeding hole 10 are respectively positioned on two sides of the feeding cylinder 6, a hopper 7 is arranged at the position, close to the feeding hole 10, of the feeding cylinder 6, the feeding cylinder 6 is obliquely arranged and is obliquely arranged towards the direction of the box body 3, the position of the discharging hole 11 on the feeding cylinder 6 stretches into a cavity of the box body 3, the spiral blade 8 is rotationally connected with two ends of the feeding cylinder 6, the power piece 9 is used for driving the spiral blade 8, and the power piece 9 is positioned at the top end of the feeding cylinder 6 and is coaxially fixed with one end of the spiral blade 8; after the saw mud particles are poured into the hopper 7, the saw mud enters the feeding barrel 6 from the feeding hole 10, and the spiral blade 8 conveys the saw mud towards the discharging hole 11, so that the feeding effect of the saw mud particles is achieved.
When saw mud particles enter the box body 3 from the discharge hole 11, in order to promote the efficiency that saw mud was broken up, the box body 3 is close to the discharge hole 11 department of going up feed cylinder 6 and is provided with ejection mechanism, ejection mechanism is including the ejector blade 18 that slides in the box body 3 inner wall, be used for providing the elastic component 19 of ejector blade 18 elasticity and be used for realizing the promotion subassembly that elastic component 19 warp, box body 3 inner wall fixedly connected with slide bar 21, the one end cover of ejector blade 18 is located outside the slide bar 21, the axial direction of slide bar 21's length direction perpendicular to discharge hole 11, elastic component 19 can be the preferred spring, the both ends of elastic component 19 respectively with box body 3 and shell fragment fixed connection, elastic component 19 cover is located outside the slide bar 21.
Referring to fig. 3 and 5, in order to further store force on the ejector blade 18, the pushing assembly includes a slider 20 and an expansion member 22, one end of the slider 20, which is close to the slide bar 21, of the ejector blade 18 is fixedly connected, the box 3 is provided with a sliding groove 23 for sliding the slider 20, the length direction of the sliding groove 23 is parallel to the length direction of the slide bar 21, one side of the slider 20, which faces the discharge hole 11, is fixedly connected with the expansion member 22, the other end of the expansion member 22 is fixedly connected with the inner wall of the end portion of the sliding groove 23, that is, the expansion member 22 is located on one side of the slider 20, which is close to the discharge hole 11, an inflation assembly 24 for inflating or deflating the expansion member 22 is arranged outside the box 3, and the expansion member 22 can adopt an inflatable bladder.
When the ejector blade 18 is positioned below the discharge hole 11 in the initial position, at this time, along with the saw mud particles entering the box body 3 from the discharge hole 11, the ejector blade 18 is pressed downwards, the sliding block 20 and the sliding rod 21 on the ejector blade 18 move upwards and compress the elastic piece 19, at this time, the expansion piece 22 is inflated, at this time, the sliding block 20 is pressed, the elastic piece 19 is further compressed, at this time, the expansion piece 22 is decompressed, under the action of the elasticity of the spring, the ejector blade 18 ejects upwards, the ejector blade 18 impacts the saw mud particles, at this time, the saw mud particles enter the box body 3 in a form of being dispersed to the periphery, and at this time, the first scattering effect is exerted on the saw mud particles.
Stirring portion includes (mixing) shaft 16 and a plurality of stirring piece 17, (mixing) shaft 16 rotates with box 3 to be connected, a plurality of stirring pieces 17 are installed in the outer wall of (mixing) shaft 16, the stirring piece 17 of this moment and the distance effect of box 3 cavity inner wall, saw mud granule in the box 3 intracavity is fully stirred and broken up as far as possible, box 3 also is provided with drive (mixing) shaft 16 pivoted power piece 9, power piece 9 also sets up to the motor, power piece 9 drives (mixing) shaft 16, stirring shaft 16 drives stirring piece 17 and takes place to rotate, the rotation direction of control (mixing) shaft 16 is opposite with the direction that saw mud granule dropped from discharge gate 11 this moment, consequently, realize the screening effect of breaking up to saw mud granule, along with saw mud granule stirring in-process, fully sieves saw mud granule.
Referring to fig. 3 and 5, after the sieving and scattering of the saw mud particles are completed, the saw mud particles need to be conveyed towards a rolling process, the rolling process can be carried out by adopting a rolling machine, a conveying mechanism for conveying the saw mud particles towards the rolling process is arranged below the box body 3, the conveying mechanism comprises a conveying belt 25 and a transmission assembly for driving the conveying belt 25 to move, the transmission assembly can adopt a driving mode of a driving roller and a driven roller, namely, the motor controls the driving roller to rotate, and the conveying belt 25 sleeved outside the driving roller and the driven roller is driven to realize the conveying effect of the saw mud particles.
Referring to fig. 2 and 3, a plurality of material distributing rakes 26 are fixedly installed above the conveyor belt 25, the material distributing rakes 26 comprise a supporting rod 27 and a plurality of material distributing rods 28, the material distributing rods 28 are distributed at equal intervals along the length direction of the supporting rod 27, the material distributing rods 28 on the conveyor belt 25 are used for distributing saw mud particles, the material distributing rods 28 on adjacent material distributing rakes 26 are distributed in a staggered manner, namely, the material distributing rods 28 on adjacent material distributing rakes 26 are located on different vertical planes, the next material distributing rod 28 is located at a gap of the last material distributing rod 28, at this time, the saw mud particles on the conveyor belt 25 are distributed for multiple times, and therefore the probability of saw mud particle agglomeration is reduced.
The embodiment of the application relates to a novel method for treating low-water-content saw mud for concrete, which comprises the following implementation principle: firstly, controlling the driving teeth 14 to rotate, wherein the driving teeth 14 drive the arc-shaped pool to move, and at the moment, the screening piece 4 with the small-size aperture is moved to the position of the feed opening 5; pouring the saw mud particles into a hopper 7, controlling a spiral blade 8 to rotate, and conveying the saw mud particles towards a discharge hole 11; when saw mud particles enter the inner cavity of the box body 3 from the material port, at the moment, along with the extrusion of the ejection sheet 18 and the extrusion of the expansion piece 22, the elastic piece 19 is extruded and deformed, at the moment, the expansion is decompressed, at the moment, under the action of the elastic piece 19, the ejection sheet 18 ejects upwards, the saw mud particles entering the box body 3 are subjected to the first scattering operation, the saw mud particles are screened along with the stirring action of the stirring blade, the saw mud particles meeting the requirements fall onto the conveying belt 25 from the material outlet 5, and the saw mud particles are further scattered under the action of the plurality of material separating rakes 26, so that the saw mud particles are prevented from caking.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (6)

1. A novel method for treating low-water-content saw mud for concrete is characterized by comprising the following steps: the method comprises the following steps of screening and scattering, namely screening and scattering the saw mud in stock; rolling the saw mud, and rolling the saw mud after sieving to obtain saw mud particles with the particle size not exceeding 15 mm; pre-mixing concrete, namely replacing part of coal ash and fine sand in the original components of the concrete with saw mud particles, and stirring to obtain a new concrete product; stirring and screening saw mud by using a stirring device, wherein the stirring device comprises a sorting mechanism (1) and a feeding mechanism (2) for feeding the sorting mechanism (1), and the sorting mechanism (1) comprises a screening part for screening saw mud particles and a stirring part for stirring the saw mud;
The screening part comprises a box body (3) and a screening piece (4), wherein the box body (3) is provided with an inner cavity, the stirring part is positioned in the inner cavity, a blanking opening (5) is formed in the side wall of the bottom of the box body (3), and the screening piece (4) is installed at the blanking opening (5);
The feeding mechanism (2) comprises a feeding barrel (6), a hopper (7), a spiral blade (8) and a power piece (9), wherein a feeding hole (10) is formed in the side wall of the bottom end of the feeding barrel (6), a discharging hole (11) is formed in the side wall of the top end of the feeding barrel (6), the feeding barrel (6) is obliquely arranged, the discharging hole (11) stretches into a cavity of the box body (3), the spiral blade (8) is rotationally connected with the feeding barrel (6), the power piece (9) is used for driving the spiral blade (8), and the hopper (7) is installed at the position, close to the feeding hole (10), of the feeding barrel (6).
An ejection mechanism is arranged at the position, close to the discharge hole (11) of the feeding barrel (6), of the box body (3), and comprises an ejection sheet (18) sliding on the inner wall of the box body (3), an elastic piece (19) for providing elasticity of the ejection sheet (18) and a pushing component for realizing deformation of the elastic piece (19);
The utility model discloses a device for ejecting a material, including box (3) inner wall fixedly connected with slide bar (21), the one end cover of ejection piece (18) is located outside slide bar (21), the both ends of elastic component (19) respectively with box (3) and ejection piece (18) fixed connection, the promotion subassembly includes slider (20) and expansion piece (22), slider (20) with ejection piece (18) are close to the one end fixed connection of slide bar (21), box (3) have been seted up and are used for slider (20) gliding spout (23), the both ends of spout (23) are closed setting, slider (20) orientation one side of discharge gate (11) with expansion piece (22) fixed connection, the other end of expansion piece (22) with spout (23) tip inner wall fixed connection, expansion piece (22) are connected and are used for being located inflation subassembly (24) outside box (3), initial position of ejection piece (18) is located discharge gate (11) below.
2. The method for treating the novel low-water-content saw mud for concrete according to claim 1, which is characterized by comprising the following steps of: the screening pieces (4) are arranged in a plurality, the screening pieces (4) are movably arranged at the position, close to the blanking opening (5), of the box body (3), and the apertures of the screening pieces (4) are different.
3. The method for treating the novel low-water-content saw mud for concrete according to claim 2, which is characterized by comprising the following steps of: the screening piece (4) is set to the arc, arc slide (12) have all been seted up to box (3) inner wall be close to feed opening (5) both sides, two arc slide (12) are followed radial direction interval setting of box (3), screening piece (4) slide respectively and set up in corresponding in arc slide (12), arc slide (12) with feed opening (5) intercommunication and the length dimension of cross-section circular arc is greater than the opening size of feed opening (5), box (3) are provided with the drive screening piece (4) gliding drive assembly.
4. A method of treating a novel low water content saw mud for concrete according to claim 3, wherein: the driving assembly comprises arc teeth (13) and driving teeth (14), wherein the arc teeth (13) are fixedly connected with the outer wall of the screening piece (4), the box body (3) is provided with driving grooves (15) which are communicated with the corresponding arc sliding ways (12), and the driving teeth (14) are rotationally connected with the box body (3) and pass through the driving grooves (15) to be meshed with the arc teeth (13).
5. The method for treating the novel low-water-content saw mud for concrete according to claim 1, which is characterized by comprising the following steps of: the stirring part comprises a stirring shaft (16) and a plurality of stirring blades (17), the stirring shaft (16) is rotationally connected with the box body (3), the stirring blades (17) are installed on the outer wall of the stirring shaft (16), and the box body (3) is also provided with a power piece (9) for driving the stirring shaft (16) to rotate.
6. The method for treating the novel low-water-content saw mud for concrete according to claim 1, wherein a conveying mechanism for conveying the saw mud to a rolling procedure is arranged below the box body (3), the conveying mechanism comprises a conveying belt (25) and a transmission assembly for driving the conveying belt (25) to move, a plurality of material dividing rakes (26) are arranged above the conveying belt (25), and the material dividing rakes (26) are distributed along the length direction of the conveying belt (25).
CN202210439574.3A 2022-04-25 2022-04-25 Novel treatment method of low-water-content saw mud for concrete Active CN114932625B (en)

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