CN117962131A - Clay-based recycled aggregate production equipment for 3D printing and method thereof - Google Patents
Clay-based recycled aggregate production equipment for 3D printing and method thereof Download PDFInfo
- Publication number
- CN117962131A CN117962131A CN202410266660.8A CN202410266660A CN117962131A CN 117962131 A CN117962131 A CN 117962131A CN 202410266660 A CN202410266660 A CN 202410266660A CN 117962131 A CN117962131 A CN 117962131A
- Authority
- CN
- China
- Prior art keywords
- equipment
- clay
- printing
- aggregate
- bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010146 3D printing Methods 0.000 title claims abstract description 103
- 239000004927 clay Substances 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 85
- 238000001125 extrusion Methods 0.000 claims abstract description 69
- 239000000203 mixture Substances 0.000 claims abstract description 69
- 238000003756 stirring Methods 0.000 claims abstract description 60
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 239000000654 additive Substances 0.000 claims abstract description 21
- 230000000996 additive effect Effects 0.000 claims abstract description 20
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 70
- 229910052742 iron Inorganic materials 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010409 ironing Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 239000012258 stirred mixture Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 15
- 239000002699 waste material Substances 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 11
- 229910052749 magnesium Inorganic materials 0.000 description 11
- 239000011777 magnesium Substances 0.000 description 11
- 229940091250 magnesium supplement Drugs 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- OLZDXDPSDUSGIS-UHFFFAOYSA-N sulfinylmagnesium Chemical compound [Mg].S=O OLZDXDPSDUSGIS-UHFFFAOYSA-N 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920000876 geopolymer Polymers 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 2
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229940050906 magnesium chloride hexahydrate Drugs 0.000 description 1
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012802 nanoclay Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention discloses clay-based recycled aggregate production equipment for 3D printing and a method thereof, wherein a control system of the clay-based recycled aggregate production equipment for 3D printing is respectively in control connection with a binder bin, an additive bin, a blending bin, a crushing device, a stirring device, a mixture conveyor belt, an extrusion forming device and an automatic metering unit; the feeding equipment is connected with a feeding port of the crushing equipment through a control system; the feeding port of the crushing equipment is positioned below the blending bin; the discharge port of the crushing equipment is connected with the stirring equipment through a bucket elevator; the binder bin and the additive bin are positioned above the stirring equipment and are connected with the stirring equipment; the stirring equipment is connected with the extrusion molding equipment through the mixture conveyer belt, the clay-based regenerated aggregate bin for 3D printing is positioned below the extrusion molding equipment, raw materials are cheap and easily available, and the cost of 3D printing materials is obviously reduced.
Description
Technical Field
The invention belongs to the field of recycled aggregate production equipment for 3D printing of buildings, and particularly relates to clay-based recycled aggregate production equipment for 3D printing and a production method thereof.
Background
In 2014, feng Peng and the like of Qinghua university take gypsum as printing materials, a 3D printer with model Spectrum Z510 manufactured by the company of Z Corporation in the United states is used for printing a cube compression-resistant test block and a prism fracture-resistant test piece, and a stress-strain relation model of the 3D printing test piece is provided through a mechanical test. And carrying out 3D printing by adopting phosphate cement at Fan Shijian of Shanghai university of transportation and the like to obtain the 3D printing additive with the compressive strength reaching 65MPa and the flexural strength reaching 10.5MPa for 1 hour. The 3D printing concrete material with the initial setting time of 20-50 min and the final setting time of 30-60 min is prepared by taking quick hardening sulphoaluminate cement as a main cementing material to prepare the composite cementing material, wherein the 2h compressive strength of the material can reach 20MPa, the 28D compressive strength can reach 60MPa, and the printing continuity and strength of the material meet the requirement of building 3D printing concrete. Zhang Dawang et al 3D printing with steel slag and geopolymer materials and tested the rheological properties and printability properties of the geopolymer slurry, such as viscosity, yield stress, etc. Zhang Yu and the like respectively modify the common silicate cement paste by adopting nano clay and silica fume, so that the constructability of the 3D printing concrete is respectively improved by 150 percent and 117 percent.
In order to solve the problems of high cost and the like of the 3D printing material, industrial solid waste and additives are mixed with the sulfoaluminate cementing material to prepare the 3D printing powder material, the setting time of the material is 10-30 min, the compressive strength of the material for 2h can reach 20MPa, and the problems of high cost and the like of the 3D printing material are solved to a certain extent. However, the 3D printing aggregate of the building adopted at present is a conventional aggregate used in the traditional building field, and the aggregate production equipment and method matched with the 3D printing equipment and process of the building are absent, so that the cost of the 3D printing material of the building at present is high, and the large-scale application of the 3D printing technology in the building field is seriously restricted.
Disclosure of Invention
The invention aims to solve the technical problem of lack of large-scale production equipment and production method of aggregates matched with building 3D printing equipment and technology, and provides clay-based recycled aggregate production equipment for 3D printing and a production method thereof.
The invention provides clay-based recycled aggregate production equipment for 3D printing, which comprises the following components: binder bin, additive bin, blending bin, crushing equipment, stirring equipment, mixture conveyor belt, extrusion molding equipment, clay-based regeneration aggregate bin for 3D printing, automatic metering unit and control system;
the automatic metering unit is arranged in the binder bin, the additive bin, the blending bin and the crushing equipment;
The control system is respectively and controllably connected with the binder bin, the additive bin, the blending bin, the crushing equipment, the stirring equipment, the mixture conveyor belt, the extrusion molding equipment and the automatic metering unit;
the control system controls the feeding equipment to feed for a feeding port of the crushing equipment; the feeding port of the crushing equipment is positioned below the blending bin;
the discharge port of the crushing equipment is connected with the stirring equipment through a bucket elevator; the binder bin and the additive bin are positioned above the stirring equipment and are connected with the stirring equipment;
The stirring equipment is connected with the extrusion molding equipment through a mixture conveying belt, and the clay-based regenerated aggregate bin for 3D printing is located below the extrusion molding equipment.
Further, the pulverizing apparatus includes: the automatic feeding device comprises a feeding hopper, a feeding port, a pulverizer and a discharging port, wherein the feeding hopper is provided with an automatic metering unit, the feeding port is positioned at the front end of the pulverizer, and the discharging port is positioned at the rear end of the pulverizer.
Further, an iron remover and a distributor are arranged on the mixture conveying belt;
The iron remover is positioned on a mixture conveyor belt between the stirring equipment and the extrusion molding equipment, and the distributor is positioned above the extrusion molding equipment;
The iron remover includes: the device comprises a rake type rotary electromagnet, a scrap iron recoverer and an iron removal controller, wherein the rake type rotary electromagnet is connected with the scrap iron recoverer, the iron removal controller is connected with the rake type rotary electromagnet, and the lowest point of the rake type rotary electromagnet is 5mm away from the upper surface of a mixing material conveying belt.
Further, the extrusion molding apparatus includes: the device comprises a feed inlet, a double-roller extruding device, an aggregate vibrating screen, a residual material conveyor belt and an extruding controller;
The feeding port is located above the double-roller extruding device, the feeding port is connected with the stirring equipment through a mixing material conveying belt, the double-roller extruding device is located above the aggregate vibrating screen, the aggregate vibrating screen is located above the residual material conveying belt, and the extruding controller is connected with the control system and the extruding forming equipment.
Further, the twin-roll extrusion device comprises: the device comprises a pair of roller wheels, an extrusion motor and a roller wheel cleaning machine, wherein a plurality of roller wheel grooves are formed in the surfaces of the pair of roller wheels, the roller wheel grooves are hemispherical grooves, the pair of roller wheels are connected with the extrusion motor, the roller wheel cleaning machine is connected with the extrusion controller, and the roller wheel cleaning machine is located above the pair of roller wheels.
Further, the aggregate vibrating screen includes: the device comprises a screen support, an aggregate screen, a vibrating motor, a flexible support and a flexible cover plate, wherein the screen support is positioned below the double-roll extruding device, the aggregate screen is positioned on the screen support, the vibrating motor is positioned above the aggregate screen, the flexible support is connected with the aggregate screen, and the flexible cover plate is connected with the flexible support.
Further, 5 extrusion molding equipment are arranged, wherein the diameter of the roller groove is 2 pieces of 10mm, the diameter of the roller groove is 2 pieces of 20mm, and the diameter of the roller groove is 1 piece of 30mm, and the extrusion molding equipment with the diameter of the roller groove of 30mm, the diameter of the roller groove of 20mm and the diameter of the extrusion molding equipment with the diameter of 10mm are sequentially arranged from the near to the far according to the distance between the stirring equipment.
The invention also provides a production method of the clay-based recycled aggregate equipment for 3D printing, which comprises the following steps:
S1, conveying mud cakes with the water content less than 60% into a feeding hopper of a crushing device through a feeding device, and doping an admixture of an admixture bin into a feeding port through a control system according to production requirements;
S2, weighing the crushed mud cakes through a control system, conveying the crushed mud cakes into stirring equipment through a bucket elevator, and sequentially adding the weighed binder and additive into the stirring equipment and stirring for 3-25 min;
S3, conveying the stirred mixture to extrusion molding equipment through a mixture conveying belt, vibrating and screening the molded clay-based regenerated aggregate for 3D printing through an aggregate vibrating screen, and conveying the residual materials after vibrating and screening to the mixture conveying belt through a residual material conveying belt;
S4, after the production of the mixture on the mixture conveyor belt is finished, the roller is cleaned by controlling a roller cleaning machine through a control system.
Further, the extrusion molding equipment is controlled by a control system and an extrusion controller or independently controlled by the extrusion controller.
Further, the pressure intensity of the produced clay-based recycled aggregate for 3D printing 28D cylinder is more than 2MPa, and the 28D crushing index is less than 30%.
The clay-based recycled aggregate production equipment for 3D printing can be used for producing aggregate suitable for building 3D printing equipment and technology in a large scale, so that the cost of building 3D printing materials is reduced; the mud gel-shaped waste with the water content of less than 60% is used as the raw material, the mud gel-shaped waste with the high water content is subjected to high value-added recycling, and meanwhile, the production cost of the aggregate for 3D printing is reduced, and the problems of high cost, ecological environment hazard and unsustainable engineering, society and ecological management of the treatment of the gel-shaped solid waste with the high water content are effectively solved.
Drawings
Fig. 1 is a plan layout top view of a clay-based recycled aggregate production device for 3D printing.
Fig. 2 is a front view of a plan layout of a clay-based recycled aggregate production apparatus for 3D printing.
Fig. 3 is a right side view of a plan layout of a clay-based recycled aggregate production device for 3D printing.
Fig. 4 is a schematic diagram of an iron remover of clay-based recycled aggregate production equipment for 3D printing.
Fig. 5 is a schematic diagram of an extrusion molding apparatus of a clay-based recycled aggregate production apparatus for 3D printing.
Fig. 6 is a schematic view of an aggregate vibrating screen of a clay-based recycled aggregate production device for 3D printing.
Fig. 7 is a schematic diagram of a method for producing clay-based recycled aggregate for 3D printing.
Fig. 8 is a schematic view of a clay-based recycled aggregate for 3D printing.
In the figure: 1. a binder bin; 2. an additive bin; 3. blending bin; 4. a crushing device; 5. a stirring device; 6. a mix conveyor belt; 7. extrusion molding equipment; 8. clay-based regenerated aggregate bin for 3D printing; 9. an automatic metering unit; 10. a control system; 11. a control room; 12. feeding a hopper; 13. a feed inlet; 14. a pulverizer; 15. a discharge port; 16. bucket elevator; 17. an iron remover; 18. a distributor; 19. a rake rotary electromagnet; 20. scrap iron recoverer; 21. an iron removal controller; 22. a feed inlet; 23. a pair-roller extruding device; 24. an aggregate vibrating screen; 25. a residue conveyor belt; 26. an extrusion controller; 27. a pair of roller wheels; 28. a material extruding motor; 29. a roller cleaning machine; 30. hemispherical grooves; 31. a screen support; 32. aggregate screen mesh; 33. a vibration motor; 34. a flexible support; 35. a flexible cover plate.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Example 1
As shown in fig. 1, the clay-based recycled aggregate production apparatus for 3D printing of this embodiment includes: a binder bin 1, an additive bin 2, a blending bin 3, a crushing device 4, a stirring device 5, a mixture conveyor belt 6, an extrusion molding device 7, a clay-based regeneration aggregate bin 8 for 3D printing, an automatic metering unit 9 and a control system 10;
the automatic metering unit 9 is arranged in the binder bin 1, the additive bin 2, the blending bin 3 and the crushing equipment 4;
the control system 10 is respectively and controllably connected with the binder bin 1, the additive bin 2, the blending bin 3, the crushing equipment 4, the stirring equipment 5, the mixture conveyor belt 6, the extrusion molding equipment 7 and the automatic metering unit 9;
The feeding equipment is connected with a feeding port of the crushing equipment 4 through a control system 10; the feeding port of the crushing equipment 4 is positioned below the blending bin 3;
The discharge port 15 of the crushing equipment 4 is connected with the stirring equipment 5 through a bucket elevator 16; the binder bin 1 and the additive bin 2 are positioned above the stirring equipment 5 and are connected with the stirring equipment 5;
The stirring equipment 5 is connected with the extrusion molding equipment 7 through a mixture conveyor belt 6, and the clay-based regenerated aggregate bin 8 for 3D printing is positioned below the extrusion molding equipment 7.
Specifically, as shown in fig. 2, the pulverizing apparatus 4 includes: the automatic feeding hopper 12 is provided with an automatic metering unit 9, the feeding port 13 is positioned at the front end of the crusher 14, the discharging port 15 is positioned at the rear end of the crusher 14, and the discharged material of the discharging port 15 is sent into the stirring equipment 5 through the bucket elevator 16. By adding the admixture before crushing the mud cake, the technical problem that the mud cake with larger water content is easy to agglomerate after crushing is effectively solved by utilizing the water absorption of the admixture, and meanwhile, the preliminary mixing of the mud cake and the admixture is realized, and then the mud cake and the admixture are fully mixed through the stirring equipment 5.
The control system 10 is located within a control room 11.
According to the clay-based recycled aggregate production equipment for 3D printing, disclosed by the embodiment of the invention, the clay cake with the water content of less than 60% can be crushed after the admixture is added, the binder and the additive are added for stirring, the clay-based recycled aggregate for 3D printing meeting engineering requirements is produced through the extrusion forming equipment 7, the production cost of the aggregate for 3D printing of a building is reduced, the recycling added value of colloidal waste with high water content is obviously improved, a technical scheme is provided for 3D printing of the building and the high-quality development of related industries of the colloidal waste with high water content, and meanwhile, the novel recycled aggregate for engineering construction is effectively provided, and the development of the building industry is promoted.
Optionally, as shown in fig. 3 and fig. 4, a de-ironing separator 17 and a distributor 18 are disposed on the mixture conveyer 6, the de-ironing separator 17 is located on the mixture conveyer 6 between the stirring device 5 and the extrusion device 7, the distributor 18 is located above the extrusion device 7, and the de-ironing separator 17 includes: the iron removing device comprises a rake rotary electromagnet 19, an iron scrap recoverer 20 and an iron removing controller 21, wherein the rake rotary electromagnet 19 is connected with the iron scrap recoverer 20, the iron removing controller 21 is connected with the rake rotary electromagnet 19, and the lowest point of the rake rotary electromagnet 19 is 5mm away from the upper surface of the mixing material conveying belt 6. When the harrow tip of the harrow type rotary electromagnet 19 of the iron remover 17 rotates to be 50mm away from the mixture conveyer belt 6, the harrow type rotary electromagnet 19 is electrified, and when the harrow tip of the harrow type rotary electromagnet 19 of the iron remover 17 rotates to be 50mm away from the scrap iron recoverer 20, the harrow type rotary electromagnet 19 is powered off; the harrow type rotary electromagnet 19 of the iron remover 17 is electrified and powered off, so that scrap iron in the mixture is effectively removed and recycled to the scrap iron recycling device 20, the scrap iron mixed in the mixture is prevented from damaging rollers of the extrusion molding equipment 7, and meanwhile, the molding quality of the clay-based recycled aggregate for 3D printing is ensured.
Alternatively, as shown in fig. 5, the extrusion molding apparatus 7 includes: the device comprises a feeding hole 22, a double-roller extruding device 23, an aggregate vibrating screen 24, a residual material conveying belt 25 and an extruding controller 26, wherein the feeding hole 22 is positioned above the double-roller extruding device 23, the feeding hole 22 is connected with a stirring device 5 through a mixing material conveying belt 6, the double-roller extruding device 23 is positioned above the aggregate vibrating screen 24, the aggregate vibrating screen 24 is positioned above the residual material conveying belt 25, and the extruding controller 26 is connected with a control system 10 and an extruding forming device 7 and is positioned beside the extruding forming device 7. The clay-based recycled aggregate for 3D printing is extruded by the extrusion molding equipment 7, so that the low-cost aggregate for 3D printing of the building is produced, the cost of the 3D printing material of the building is reduced, meanwhile, the large-scale drying-free production of the gelatinous waste with high water content is realized, and the production equipment support is provided for sustainable development and abolished city-free city construction.
Optionally, as shown in fig. 5, the twin roll extrusion apparatus 23 includes: the double-roller 27, crowded material motor 28 and roller cleaning machine 29, double-roller 27 surface all sets up a plurality of hemisphere type recess 30, double-roller 27 with crowded material motor 28 is connected, roller cleaning machine 29 with crowded material controller 26 is connected, roller cleaning machine 29 is located double-roller 27 top. Through set up the running roller recess on the surface of pair roller 27, the running roller recess is hemisphere recess 30, hemisphere recess 30 matrix arrangement on the surface of pair roller 27 extrudees the mixture of the colloidal waste that the moisture content is big into ellipsoid form clay-based recycled aggregate for 3D printing, makes 3D print with clay-based recycled aggregate closely combine together through physical action before the shaping, has reduced 3D print with clay-based recycled aggregate's porosity to guaranteed that 3D prints with clay-based recycled aggregate's grain is even complete, effectively promoted 3D print with clay-based recycled aggregate intensity increase.
Alternatively, as shown in fig. 6, the aggregate vibrating screen 24 includes: the novel double-roll extrusion device comprises a screen support 31, an aggregate screen 32, a vibrating motor 33, a flexible support 34 and a flexible cover plate 35, wherein the screen support 31 is located below the double-roll extrusion device 23, the aggregate screen 32 is located on the screen support 31, the vibrating motor 33 is located above the aggregate screen 32, the flexible support 34 is connected with the aggregate screen 32, and the flexible cover plate 35 is connected with the flexible support 34. The aggregate vibrating screen 24 effectively removes the connection materials among the clay-based recycled aggregate particles for 3D printing and the edge materials of the particles, screens out the connection materials, the edge materials and other unshaped mixture materials, conveys the screened mixture materials into the extrusion molding equipment 7 through the residual material conveying belt 25 to extrude the mixture materials into the clay-based recycled aggregate for 3D printing again, improves the appearance quality of the clay-based recycled aggregate particles for 3D printing and the utilization rate of the mixture materials, effectively avoids the phenomenon that the clay-based recycled aggregate for 3D printing is difficult to disperse after entering the clay-based recycled aggregate bin 8 for 3D printing due to the bridging bonding effect of the unshaped mixture materials, and simultaneously eliminates the influence of the connection materials among the clay-based recycled aggregate particles for 3D printing, the edge materials of the particles and other unshaped mixture materials on the clay-based recycled aggregate for 3D printing, the pressure strength of the clay-based recycled aggregate cylinder for 3D printing and the crushing index test result.
Alternatively, as shown in fig. 1 and 3, 5 extrusion molding devices 7 are provided, and 2 extrusion molding devices 7 with roller groove diameters of 10mm, 2 extrusion molding devices with roller groove diameters of 20mm and 1 extrusion molding device with roller groove diameters of 30mm, 20mm and 10mm are sequentially provided from the near to the far according to the distance from the stirring device 5. The requirement of different purposes on the particle size of the clay-based recycled aggregate for 3D printing is met by arranging extrusion molding equipment 7 with different particle sizes; meanwhile, the extrusion molding equipment 7 with larger grain diameter is arranged at the position closest to the stirring equipment 5, so that the residual materials conveyed by the residual material conveying belt 25 are firstly extruded into the clay-based recycled aggregate with larger grain diameter for 3D printing, and then extruded into the clay-based recycled aggregate with smaller grain diameter for 3D printing.
Example 2
As shown in fig. 1 and 7, in the production method of the clay-based recycled aggregate for 3D printing of this embodiment, 60 parts of mud cake with water content of 60% and 10 parts of quicklime powder with particle size of 0.074mm are added into a crushing device 4, the crushed materials are lifted into a stirring device 5 through a bucket elevator 16, meanwhile, 15 parts of 42.5-grade ordinary portland cement and 5 parts of 42.5-grade quick hardening sulphoaluminate cement are added into the stirring device 5, after stirring for 3min, the mixture is carried out iron removal and material separation through a mixture conveyor belt 6 and conveyed into an extrusion molding device 7, the extruded 3D-printing clay-based recycled aggregate falls into a clay-based recycled aggregate bin 8 for 3D printing after the residue is removed through an aggregate vibrating screen 24, and the mixture is discharged for continuous maintenance or use after maintenance for 3D; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based recycled aggregate for 3D printing; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The produced clay-based recycled aggregate for 3D printing has the appearance shown in FIG. 8, and the 28D barrel pressure strength and the crushing index are 3.6MPa and 15% respectively.
Example 3
As shown in fig. 1 and 7, in the production method of the clay-based recycled aggregate equipment for 3D printing of this embodiment, 73 parts of mud cake with water content of 45% and 7 parts of quicklime powder with particle size of 0.074mm are added into a crushing equipment 4, the crushed materials are lifted into a stirring equipment 5 by a bucket elevator 16, meanwhile, 16 parts of 42.5-grade ordinary Portland cement and 4 parts of dihydrate gypsum powder with particle size of 0.074mm are added into the stirring equipment 5, after stirring for 15min, the mixture is carried out iron removal and material separation by a mixture conveyor belt 6 and conveyed into an extrusion molding equipment 7, the extruded 3D-printing clay-based recycled aggregate falls into a clay-based recycled aggregate bin 8 for 3D printing after the residue is removed by an aggregate vibrating screen 24, and the mixture is discharged from a bin for continuous maintenance or use after maintenance for 3D; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based recycled aggregate for 3D printing; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The produced clay-based recycled aggregate for 3D printing has the appearance shown in FIG. 8, and the 28D barrel pressure strength and the crushing index are respectively 4.9MPa and 13%.
Example 4
As shown in fig. 1 and 7, in the production method of the clay-based recycled aggregate equipment for 3D printing of this embodiment, 78 parts of clay cake with water content of 30% and 1 part of stone powder with particle size of 0.074mm are added into a crushing equipment 4, the crushed materials are lifted into a stirring equipment 5 by a bucket elevator 16, meanwhile, 16 parts of 42.5-grade ordinary portland cement and 1 part of 42.5-grade quick hardening aluminoferrite cement are added into the stirring equipment 5, after stirring for 25min, the mixture is subjected to iron removal and material separation through a mixture conveyor belt 6 and conveyed into an extrusion molding equipment 7, the extruded clay-based recycled aggregate for 3D printing falls into a clay-based recycled aggregate bin 8 for 3D printing after the residue is removed by an aggregate vibrating screen 24, and after maintenance for 3D, the materials are discharged and stacked for continuous maintenance or use; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based recycled aggregate for 3D printing; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The produced clay-based recycled aggregate for 3D printing has the appearance shown in FIG. 8, and the 28D barrel pressure strength and the crushing index are 5.3MPa and 12% respectively.
Example 5
As shown in fig. 1 and 7, in the production method of clay-based recycled aggregate equipment for 3D printing in this embodiment, 68.6 parts of clay cake with a water content of 53% and 18 parts of asphalt mixing plant waste ash with a particle size of 0.074mm are added into a crushing equipment 4, the crushed materials are lifted into a stirring equipment 5 through a bucket elevator 16, 31.4 parts of magnesium oxysulfide cementing materials are added into the stirring equipment 5, 98 parts of light burned magnesium oxide and 42 parts of magnesium sulfate heptahydrate are added into the magnesium oxysulfide cementing materials, after stirring for 3min, the mixture is conveyed into an extrusion molding equipment 7 through a mixture conveying belt 6 for iron removal and material separation, the extruded clay-based recycled aggregate falls into a clay-based magnesium recycled aggregate bin after being removed by an aggregate vibrating screen 24, and is discharged for continuous maintenance or use after being piled up for 3D; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based magnesium recycled aggregates; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The appearance of the produced clay-based magnesium recycled aggregate is shown in figure 8, and the 28d barrel pressure strength and the crushing index are respectively 4.2MPa and 15%.
Example 6
As shown in fig. 1 and 7, in the clay-based recycled aggregate equipment production method for 3D printing of this embodiment, 72.3 parts of clay cake with water content of 54% and 20 parts of waste residues in the ceramic firing process with particle size of 0.074mm are added into a crushing equipment 4, the crushed materials are lifted into a stirring equipment 5 through a bucket elevator 16, 27.7 parts of magnesium oxysulfide cementing materials are added into the stirring equipment 5, 86 parts of light burned magnesium oxide and 66 parts of magnesium sulfate heptahydrate in the magnesium oxysulfide cementing materials are stirred for 15min, the mixture is conveyed into an extrusion molding equipment 7 through a mixture conveying belt 6 for iron removal and material separation, the extruded clay-based recycled aggregate falls into a clay-based magnesium recycled aggregate bin after being screened out by an aggregate vibrating screen 24, and the clay-based recycled aggregate is taken out of a bin for continuous maintenance or use after maintenance for 3D; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based magnesium recycled aggregates; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The appearance of the produced clay-based magnesium recycled aggregate is shown in figure 8, and the 28d barrel pressure strength and the crushing index are 5.5MPa and 13% respectively.
Example 7
As shown in fig. 1 and 7, in the production method of clay-based recycled aggregate equipment for 3D printing in this embodiment, 80.8 parts of clay cake with water content of 48% and 10 parts of stone powder are added into a crushing equipment 4, wherein the stone powder is powder particles with particle size of 0.074mm generated in the concrete crushing process, the crushed materials are lifted into a stirring equipment 5 through a bucket elevator 16, 19.2 parts of magnesium oxychloride cementing materials are added into the stirring equipment 5, 96 parts of light-burned magnesium oxide, 148 parts of magnesium chloride hexahydrate and 35 parts of heavy-burned magnesium oxide are added into the magnesium oxychloride cementing materials, the mixture is subjected to iron removal and material separation through a mixture conveying belt 6 after stirring for 25min and conveyed into an extrusion molding equipment 7, the extruded clay-based recycled aggregate falls into a clay-based magnesium recycling aggregate bin after the residue is sieved through an aggregate vibrating screen 24, and is discharged from a bin for continuous maintenance or use after 3D maintenance; the surplus materials screened by the aggregate vibrating screen 24 are conveyed to the mixture conveying belt 6 by the surplus material conveying belt 25 to continuously produce clay-based magnesium recycled aggregates; after the mixture on the mixture conveyor belt 6 is produced, the roller cleaning machine 29 is started to clean the rollers.
The appearance of the produced clay-based magnesium recycled aggregate is shown in figure 8, and the 28d barrel pressure strength and the crushing index are 6.9MPa and 18 percent respectively.
The equipment of the invention is formed by adding the adhesive and the additive into the colloidal waste with high water content, crushing the colloidal waste, and then extruding the mixture, and has the advantages of quick forming, low manufacturing cost, no raw material waste in the forming process and the like; the performance index of the produced clay-based magnesium recycled aggregate is suitable for 3D printing, and the clay-based magnesium recycled aggregate can replace natural aggregate; according to the invention, the clay-based recycled aggregate for 3D printing is prepared from the colloidal wastes with high water content such as river sludge, so that the cost of building 3D printing materials is reduced, the treatment cost of the river sludge is reduced, the value-added products are produced, the efficient and high-value-added resource industrial utilization of the colloidal wastes with high water content such as the river sludge is realized, and large-scale industrial equipment and process schemes are provided for the high-quality development of the related industries of the colloidal wastes with high water content and 3D printing of the building.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application after reading the present specification, and these modifications and variations do not depart from the scope of the application as claimed in the pending claims.
Claims (10)
1. The clay-based recycled aggregate production equipment for 3D printing is characterized in that the clay-based recycled aggregate production equipment for 3D printing comprises: binder bin, additive bin, blending bin, crushing equipment, stirring equipment, mixture conveyor belt, extrusion molding equipment, clay-based regeneration aggregate bin for 3D printing, automatic metering unit and control system;
the automatic metering unit is arranged in the binder bin, the additive bin, the blending bin and the crushing equipment;
The control system is respectively and controllably connected with the binder bin, the additive bin, the blending bin, the crushing equipment, the stirring equipment, the mixture conveyor belt, the extrusion molding equipment and the automatic metering unit;
the control system controls the feeding equipment to feed for a feeding port of the crushing equipment; the feeding port of the crushing equipment is positioned below the blending bin;
the discharge port of the crushing equipment is connected with the stirring equipment through a bucket elevator; the binder bin and the additive bin are positioned above the stirring equipment and are connected with the stirring equipment;
The stirring equipment is connected with the extrusion molding equipment through a mixture conveying belt, and the clay-based regenerated aggregate bin for 3D printing is located below the extrusion molding equipment.
2. The clay-based recycled aggregate production apparatus for 3D printing according to claim 1, wherein the crushing apparatus comprises: the automatic feeding device comprises a feeding hopper, a feeding port, a pulverizer and a discharging port, wherein the feeding hopper is provided with an automatic metering unit, the feeding port is positioned at the front end of the pulverizer, and the discharging port is positioned at the rear end of the pulverizer.
3. The clay-based recycled aggregate production equipment for 3D printing according to claim 1, wherein a de-ironing separator and a distributor are arranged on the mixture conveyor belt;
The iron remover is positioned on a mixture conveyor belt between the stirring equipment and the extrusion molding equipment, and the distributor is positioned above the extrusion molding equipment;
The iron remover includes: the device comprises a rake type rotary electromagnet, a scrap iron recoverer and an iron removal controller, wherein the rake type rotary electromagnet is connected with the scrap iron recoverer, the iron removal controller is connected with the rake type rotary electromagnet, and the lowest point of the rake type rotary electromagnet is 5mm away from the upper surface of a mixing material conveying belt.
4. The clay-based recycled aggregate production apparatus for 3D printing according to claim 1, wherein the extrusion molding apparatus comprises: the device comprises a feed inlet, a double-roller extruding device, an aggregate vibrating screen, a residual material conveyor belt and an extruding controller;
The feeding port is located above the double-roller extruding device, the feeding port is connected with the stirring equipment through a mixing material conveying belt, the double-roller extruding device is located above the aggregate vibrating screen, the aggregate vibrating screen is located above the residual material conveying belt, and the extruding controller is connected with the control system and the extruding forming equipment.
5. The clay-based recycled aggregate production equipment for 3D printing according to claim 4, wherein the twin-roll extrusion device comprises: the device comprises a pair of roller wheels, an extrusion motor and a roller wheel cleaning machine, wherein a plurality of roller wheel grooves are formed in the surfaces of the pair of roller wheels, the roller wheel grooves are hemispherical grooves, the pair of roller wheels are connected with the extrusion motor, the roller wheel cleaning machine is connected with the extrusion controller, and the roller wheel cleaning machine is located above the pair of roller wheels.
6. The clay-based recycled aggregate production facility for 3D printing according to claim 4, wherein the aggregate vibrating screen comprises: the device comprises a screen support, an aggregate screen, a vibrating motor, a flexible support and a flexible cover plate, wherein the screen support is positioned below the double-roll extruding device, the aggregate screen is positioned on the screen support, the vibrating motor is positioned above the aggregate screen, the flexible support is connected with the aggregate screen, and the flexible cover plate is connected with the flexible support.
7. The clay-based recycled aggregate production equipment for 3D printing according to claim 5, wherein 5 extrusion molding equipment is arranged, wherein 2 extrusion molding equipment with the roller groove diameter of 10mm, 2 extrusion molding equipment with the roller groove diameter of 20mm and 1 extrusion molding equipment with the roller groove diameter of 30mm, 20mm and 10mm are sequentially arranged from the near to the far according to the stirring equipment.
8. A method for producing the clay-based recycled aggregate device for 3D printing according to any one of claims 1 to 7, comprising the steps of:
S1, conveying mud cakes with the water content less than 60% into a feeding hopper of a crushing device through a feeding device, and doping an admixture of an admixture bin into a feeding port through a control system according to production requirements;
S2, weighing the crushed mud cakes through a control system, conveying the crushed mud cakes into stirring equipment through a bucket elevator, and sequentially adding the weighed binder and additive into the stirring equipment and stirring for 3-25 min;
S3, conveying the stirred mixture to extrusion molding equipment through a mixture conveying belt, vibrating and screening the molded clay-based regenerated aggregate for 3D printing through an aggregate vibrating screen, and conveying the residual materials after vibrating and screening to the mixture conveying belt through a residual material conveying belt;
S4, after the production of the mixture on the mixture conveyor belt is finished, the roller is cleaned by controlling a roller cleaning machine through a control system.
9. The method for producing clay-based recycled aggregate for 3D printing according to claim 8, wherein the extrusion molding apparatus is controlled by a control system, a control extrusion controller, or is controlled by an extrusion controller alone.
10. The method for producing the clay-based recycled aggregate for 3D printing according to claim 8, wherein the pressure intensity of the produced clay-based recycled aggregate for 3D printing is more than 2MPa, and the 28D crushing index is less than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410266660.8A CN117962131A (en) | 2024-03-06 | 2024-03-06 | Clay-based recycled aggregate production equipment for 3D printing and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410266660.8A CN117962131A (en) | 2024-03-06 | 2024-03-06 | Clay-based recycled aggregate production equipment for 3D printing and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117962131A true CN117962131A (en) | 2024-05-03 |
Family
ID=90863179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410266660.8A Pending CN117962131A (en) | 2024-03-06 | 2024-03-06 | Clay-based recycled aggregate production equipment for 3D printing and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117962131A (en) |
-
2024
- 2024-03-06 CN CN202410266660.8A patent/CN117962131A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102358705B (en) | Process for producing sintered ceramsite by using solid waste materials, and system thereof | |
| JP5474036B2 (en) | Coal ash granule production method, concrete product production method using coal ash granulation product, high density / high strength concrete product produced by these production methods, high density / high strength concrete product Method for producing recycled aggregate, and recycled aggregate produced by this production method | |
| CN101314530A (en) | Method for producing building material with low-temperature ceramic modified industry by-product gypsum | |
| CN101713229B (en) | Autoclaved aerated concrete building block produced from copper ore tails and process thereof | |
| CN101172790A (en) | Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material | |
| CN101289332A (en) | Low-temperature ceramic foam material and production method thereof | |
| CN102557583A (en) | Energy-saving dry powder production method for building ceramics | |
| CN101480813A (en) | Cleaning energy-saving processing technique of ceramic raw material dry powder prilling | |
| CN103396074A (en) | Aerated concrete building block and manufacturing method thereof | |
| CN101734895A (en) | Process for producing regenerated building waste autoclaved brick | |
| CN106045393A (en) | Production equipment of ecological concrete | |
| AT510591A4 (en) | PRE-TREATMENT OF RAW MATERIAL FOR THE MANUFACTURE OF BASALT FIBERS | |
| CN101045617B (en) | Magnesium waste slag building brick and producing method | |
| CN101007716A (en) | High-intensity little clinker manganese slag bake-free brick formula | |
| CN102173701A (en) | Non-autoclaved waste residue sand lime brick and preparation method thereof | |
| CN111116142A (en) | Ecological concrete prepared from building waste soil sintered micro powder and preparation method of concrete product thereof | |
| KR100842769B1 (en) | The method of construction materials | |
| CN106478033A (en) | A kind of production technology of autoclaved lime-sand brick | |
| CN102295441A (en) | Aerated concrete brick produced by using tailing slags | |
| CN113213882B (en) | 3D printing magnesium oxychloride cement concrete product and maintenance method thereof | |
| CN111423220B (en) | Baking-free refractory brick and low-emission, energy-saving and intelligent production process thereof | |
| KR100820087B1 (en) | The manufacturing system of block figuration composite using fly-ash | |
| CN117962131A (en) | Clay-based recycled aggregate production equipment for 3D printing and method thereof | |
| CN101748847A (en) | Ceramic aggregate building block and production method thereof | |
| CN210066428U (en) | Grit self-control intermittent type formula asphalt concrete mixing plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication |