CN217127297U - Automatic production line for sorting and preparing recycled aggregate - Google Patents
Automatic production line for sorting and preparing recycled aggregate Download PDFInfo
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- CN217127297U CN217127297U CN202221538165.0U CN202221538165U CN217127297U CN 217127297 U CN217127297 U CN 217127297U CN 202221538165 U CN202221538165 U CN 202221538165U CN 217127297 U CN217127297 U CN 217127297U
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Abstract
The utility model discloses a preparation automation line is selected separately to recycled aggregate, including the raw materials system, the raw materials system passes through raw materials conveyer belt and screening headtotail, the screening system is connected with the cleaning system through dividing the material conveyer belt, the cleaning system passes through washing material conveyer belt and air-dries headtotail, the air-drying system stores the storehouse through the fine aggregate of air-drying material conveyer belt and finished product system and is connected. The utility model can realize the refined sorting of the recycled aggregate and effectively utilize the garbage and the sewage generated in the sorting process, and greatly improves the resource utilization rate on the premise of being beneficial to environmental protection; the utility model provides a be applied to the thin aggregate of regeneration and prepare masonry structure and pour into reasonable technical scheme with self-compaction concrete, be difficult to obtain the high application scene of economic value for the thin aggregate of regeneration that effectively handles in a large number at present, can provide new technical support for the energy saving and emission reduction work of china's building materials trade.
Description
Technical Field
The utility model relates to a building material preparation technical field particularly, relates to a preparation automation line is selected separately to recycled aggregate.
Background
The annual output of urban construction waste in China is about 35 hundred million tons, and the resource utilization rate of the construction waste is only 40 percent. The conversion rate of the recycled aggregate produced by the construction waste can reach 85 percent, and the price of the recycled aggregate is far lower than that of the natural aggregate. However, since recycled aggregates are inferior to natural aggregates in terms of impurity content, porosity, water absorption, apparent density, crushing index, and the like, the use of recycled aggregates has been limited for a long time. However, with the continuous addition of environmental protection measures such as the shortage of gravels, the rising of sand price, energy conservation and carbon reduction in China in recent years, the further expansion and application of the building recycled aggregate under the double promotion of the market and the policy is imperative.
The production of the building recycled aggregate in the prior art mainly comprises two procedures of crushing and screening, and the two procedures are mainly carried out on a building demolition site or other building waste stacking sites in consideration of transportation cost. The recycled coarse aggregate with the particle size of more than 4.75mm in the product obtained after screening can be used for preparing concrete, and the recycled micro powder of the concrete with the particle size of less than 1.18mm can be used for preparing mortar. For the recycled fine aggregates with the particle size of 1.18-4.75 mm, especially brick recycled fine aggregates, because the recycled fine aggregates have the characteristics of strong water absorption, high mud content, low apparent density and low strength, fresh concrete prepared by the recycled fine aggregates has poor fluidity, easy segregation and high bubble content, the interface transition region of the hardened concrete has loose structure, large porosity, poor mechanical property and poor quality stability, and the secondary water absorption (continuous water absorption) characteristic of the aggregates makes the mixing water consumption difficult to judge for building constructors, so most recycled fine aggregates in the prior art can only be used for preparing permeable bricks or hollow blocks with smaller structural strength requirements, and the market of the products is basically saturated. With the increasing of the demolition amount of domestic waste buildings in recent years, the prior art is difficult to accelerate the digestion of the recycled fine aggregates, and a large amount of recycled fine aggregates which cannot be effectively treated in time can only be backfilled or stacked for a long time, so that the environment is polluted, and resources are wasted.
In addition to the disadvantage that the physical and chemical properties of the recycled aggregate are difficult to avoid, the prior art adopts extensive treatment on the recycled aggregate as another reason that the recycled aggregate is difficult to be effectively and fully utilized. The prior art has the following defects when processing recycled aggregate: (1) in the prior art, although most of the recycled aggregate is prepared by magnetically separating and recovering metal particles with higher economic value in broken particles, sawdust, paper scraps, plastic particles and soil contained in the particles are not effectively treated, and the impurities can cause great negative effects on the fluidity and strength of concrete; (2) the prior art is difficult to solve the problem of 'secondary water absorption' of the recycled fine aggregate, and a reasonable technical scheme for applying the recycled fine aggregate with the particle size of 1.18-4.75 mm to a concrete structure is not provided; (3) the prior art does not effectively treat a large amount of dust, soil or fine sand generated in the screening of the recycled aggregate; (4) the prior art is lack of a systematic and automatic recycled aggregate sorting and preparing production line. In conclusion, the low-efficiency and low-quality processing mode in the prior art limits the application scenes of the recycled aggregate and causes environmental pollution and resource waste to a certain extent.
Therefore, how to research a production system capable of finely and automatically processing recycled aggregate becomes a technical problem to be solved by those skilled in the art. In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a preparation automation line is selected separately to recycled aggregate, this automation line possesses the function of screening, washing, drying, packing the recycled aggregate according to different particle diameters to earth, dust, fine sand, the sewage that produces in can the whole production flow of make full use of.
A second aim at provides one kind the utility model recycled aggregate selects separately preparation automation line's production method, this production method is through reasonable application each system device of automation line retrains the preparation technology of recycled aggregate and other all kinds of byproducts, can obtain the product of quality preferred, market perspective are wide.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
the utility model provides a preparation automation line is selected separately to recycled aggregate, including the raw materials system, the raw materials system passes through the raw materials conveyer belt and is connected with the screening system, the screening system is connected with the cleaning system through dividing the material conveyer belt, the cleaning system passes through washing material conveyer belt and air-dries the headtotail, the air-drying system stores the storehouse through the fine aggregate of air-drying material conveyer belt and finished product system and is connected.
Preferably, the utility model discloses in, the feed belt feed end is connected with the raw materials storage storehouse discharge end, the raw materials storage storehouse discharge end is equipped with the unloading controller.
Preferably, the utility model discloses in, the screening system includes the dust removal room, the inside sorting screen machine that is equipped with of dust removal room, sorting screen machine feed end with the raw materials conveyer belt discharge end is connected, the sorting screen machine is from last to including one-level screen cloth, secondary screen cloth, tertiary screen cloth, baffle box down at least, the one-level screen cloth discharge end is stored the storehouse through first branch material conveyer belt and coarse aggregate and is connected, the secondary screen cloth discharge end is divided the material conveyer belt through the second and is connected with first washing material conveyer belt feed end, the tertiary screen cloth discharge end is divided the material conveyer belt through the third and is connected with second washing material conveyer belt feed end, the baffle box discharge end is stored the storehouse through fourth branch material conveyer belt and clay powder and is connected.
Preferably, the utility model discloses in, the dust removal room pass through dust recovery system with the storehouse is stored to the clay powder is connected.
Preferably, the utility model discloses in, divide material conveyer belt discharge end to loop through wash down section, parallel section, the section of going upward of material conveyer belt with air-dry material conveyer belt feed end is connected, wash down section of material conveyer belt stretches into washing pond liquid level, wash down section of material conveyer belt is located washing pond liquid level below, wash up section of material conveyer belt stretches out washing pond liquid level.
Preferably, the utility model discloses in, the rinsing pond is rubbish sludge sedimentation tank all around, the rinsing pond liquid level with the rinsing pond top is held level, the rinsing pond top is higher than rubbish sludge sedimentation tank top, rubbish sludge sedimentation tank upper portion pass through circulating water filter equipment with the rinsing pond bottom is connected, rubbish sludge sedimentation tank pass through rubbish mud recovery system with the storehouse is stored to the clay powder and is connected.
Preferably, the utility model discloses in, washing pond top has erect rubbish and has struck off the machine, rubbish strikes off the machine and is equipped with the rubbish scraper blade that can reciprocating motion, rubbish strikes off the machine and is close to washing material conveyer belt upper segment one side is equipped with the rubbish baffle, rubbish baffle bottom is located washing pond liquid level below.
Preferably, the utility model discloses in, air-dry material conveyer belt is the waterlogging caused by excessive rainfall conveyer belt, air-dry material conveyer belt top is equipped with air-dry unit, air-dry material conveyer belt below through water recovery system with rubbish sludge sedimentation tank connects.
Preferably, the utility model discloses in, first washing material conveyer belt discharge end is stored the storehouse feed end through first air-dried material conveyer belt and first fine aggregate and is connected, second washing material conveyer belt discharge end is stored the storehouse feed end through second air-dried material conveyer belt and second fine aggregate and is connected, first fine aggregate is stored the storehouse discharge end and the storehouse discharge end is stored to second fine aggregate and is connected with two feed ends of compounding measurement bagging-off equipment respectively.
The utility model also provides a recycled aggregate select separately preparation automation line's production method, production method includes following step:
s1, crushing the recycled aggregate and placing the crushed recycled aggregate in a raw material storage bin;
s2, conveying the recycled aggregate in the raw material storage bin to the feed end of a sorting screen machine in the dedusting room through a blanking controller and a raw material conveyor belt in sequence;
s3, conveying the coarse aggregate which cannot pass through the first-stage screen mesh to a coarse aggregate storage bin through a first distribution conveyor belt, conveying the first fine aggregate which passes through the first-stage screen mesh but cannot pass through the second-stage screen mesh to a first washing material conveyor belt through a second distribution conveyor belt, conveying the second fine aggregate which passes through the second-stage screen mesh but cannot pass through the third-stage screen mesh to a second washing material conveyor belt through a third distribution conveyor belt, conveying the powder which passes through the third-stage screen mesh to a clay powder storage bin through a guide chute and a fourth distribution conveyor belt in sequence, and conveying the dust in the dust removal room to the clay powder storage bin through a dust recovery system;
s4, cleaning the first fine aggregate and the second fine aggregate in a washing tank to prepare fine aggregate in a saturated water state, conveying the first fine aggregate and the second fine aggregate to an air drying system through a washing material conveyor belt, transferring garbage in the washing tank to a garbage sludge sedimentation tank through a water flow or a garbage scraper, conveying a large amount of silt, a small amount of sawdust, paper scraps and plastic particles in the garbage sludge sedimentation tank to a clay storage bin through a garbage sludge recovery system, and injecting water at the upper part of the garbage sludge sedimentation tank into the bottom of the washing tank through a circulating water filtering device;
s5, blowing the surface floating water of the fine aggregate away from the fine aggregate by an air dryer, allowing the surface floating water to flow into a water recovery system through a draining hole of an air drying material conveyor belt, allowing the surface floating water to flow into a garbage sludge sedimentation tank through the water recovery system, removing floating water and residual garbage from the saturated water state fine aggregate in the air drying system, and conveying the first fine aggregate and the second fine aggregate to a first fine aggregate storage bin and a second fine aggregate storage bin respectively through the air drying material conveyor belt;
s6, the fine aggregates with different particle diameters in the first fine aggregate storage bin and the second fine aggregate storage bin are sealed and bagged according to a specific proportion by a mixed material metering bagging device, and then can be used for preparing self-compacting concrete for masonry structure pouring, the coarse aggregates in the coarse aggregate storage bin can be used for preparing cushion layer or base layer concrete, and the clay and powder in the clay and powder storage bin can be used for preparing sintered bricks.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a small amount of saw-dust, wastepaper, plastic granules and a large amount of silt that contain in the fine aggregate granule of regeneration have carried out cleaning treatment, have effectively guaranteed mobility and the intensity of fine aggregate of regeneration when preparing the concrete, and the silt that produces in the washing can be used to preparation baked brick, and the water of brickmaking shaping can be practiced thrift to the moisture that contains in the silt, and saw-dust, wastepaper, plastic granules can regard as the fuel burning to be totally when preparing the baked brick.
(2) The utility model discloses to the particle diameter further sieve between 1.18mm ~4.75 mm's regeneration fine aggregate, wash, air-dry, can prepare the thin aggregate of the saturated water state that the surface does not have the water of swimming after the sealing bag, this technical scheme is favorable to the accurate concrete mix water quantity of calculating, has overcome the strong water absorption nature of regeneration fine aggregate among the prior art, high mud content, the adverse effect that the secondary water absorption characteristic brought concrete preparation link quality stability, the utility model provides a be applied to regeneration fine aggregate and prepare the reasonable technical scheme of masonry structure perfusion with self-compaction concrete, fully enlarged regeneration fine aggregate's application prospect and market value.
(3) The utility model discloses a large amount of dust, earth or fine sand that produce when screening the recycled aggregate have carried out effective recovery processing, store the storehouse at the clay powder, the dry material that the screening system carried and the wet material that rubbish sludge recovery system carried have carried out dry wet neutralization, change in the discharge, and can not cause dust pollution.
(4) The utility model discloses each process link and the application scene in the process of fully considering the regeneration aggregate to select separately provides a method that the regeneration aggregate was selected separately systematically, automized, this method no matter is to the wide application's among the prior art regeneration coarse aggregate, still does not have any waste to the regeneration fine aggregate that is difficult to consume among the prior art and the dust, earth, rubbish, the water that produces or use in the whole production process, the promotion of very big degree resource utilization.
(5) The utility model discloses make the especially fragment of brick regeneration fine aggregate of regeneration fine aggregate that can't use on a large scale under the prior art condition can effectively replace the quantity of natural aggregate in the brickwork operation of pouring, greatly reduced the construction cost of building the operation by laying bricks or stones, be difficult to obtain the regeneration fine aggregate of effective processing in a large number at present and provide the higher application scene of economic value, can provide new technical support for the energy saving and emission reduction work of china's building materials trade.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a top view of an automatic production line for sorting and preparing recycled aggregate according to an embodiment of the present invention;
fig. 2 is a side view of an automatic production line for sorting and preparing recycled aggregate according to an embodiment of the present invention;
fig. 3 is a flow chart of the work flow of the automatic production line for sorting and preparing recycled aggregate according to the embodiment of the present invention;
in the figure: 1. a feedstock system; 11. a raw material conveyor belt; 12. a raw material storage bin; 121. a blanking controller; 2. a screening system; 21. a material distribution conveyor belt; 211. a first distribution conveyor; 212. a second distribution conveyor belt; 213. a third distributing conveyor belt; 214. a fourth distribution conveyor belt; 22. a dust removal room; 23. a sorting and screening machine; 231. a first-stage screen; 232. a secondary screen; 233. a third-stage screen mesh; 234. a material guide chute; 3. cleaning the system; 31. washing the material conveyor belt; 311. a first water wash conveyor; 312. a second washing material conveyor belt; 32. a water washing pool; 33. a garbage sludge sedimentation tank; 34. a circulating water filtering device; 35. a waste scraper; 351. a garbage scraper; 352. a garbage baffle; 4. an air drying system; 41. air-drying the material conveying belt; 411. a first air-dried material conveyor belt; 412. a second air drying conveyor belt; 42. air drying the machine set; 421. a first air dryer group; 422. a second air dryer group; 5. a finished product system; 51. a fine aggregate storage bin; 511. a first fine aggregate storage bin; 512. a second fine aggregate storage bin; 52. a coarse aggregate storage bin; 53. a clay powder storage bin; 54. mixing material metering bagging equipment; 6. a dust recovery system; 7. a waste sludge recovery system; 8. a water recovery system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-2, according to the utility model discloses preparation automation line is selected separately to recycled aggregate, including raw materials system 1, raw materials system 1 passes through raw materials conveyer belt 11 and is connected with screening system 2, and screening system 2 is connected with cleaning system 3 through dividing material conveyer belt 21, and cleaning system 3 is connected with air-dry system 4 through washing material conveyer belt 31, and air-dry system 4 stores storehouse 51 through the thin aggregate of air-dry material conveyer belt 41 with finished product system 5 and is connected.
The utility model discloses an in the preferred embodiment, the feed end of raw materials conveyer belt 11 is connected with the 12 discharge ends in raw materials storage storehouse, and the 12 discharge ends in raw materials storage storehouse are equipped with unloading controller 121.
By adjusting the blanking controller 121, the recycled aggregate can be conveniently and uniformly spread on the surface of the subsequent conveyor belt.
The utility model discloses an in the preferred embodiment, screening system 2 includes dust removal room 22, the inside separation screen 23 that is equipped with of dust removal room 22, separation screen 23 feed end is connected with raw materials conveyer belt 11 discharge end, separation screen 23 is from last to including at least one-level screen cloth 231 down, second grade screen cloth 232, tertiary screen cloth 233, baffle box 234, one-level screen cloth 231 discharge end is stored the storehouse 52 through first branch material conveyer belt 211 and coarse aggregate and is connected, second grade screen cloth 232 discharge end is connected with first washing material conveyer belt 311 feed end through second branch material conveyer belt 212, tertiary screen cloth 233 discharge end is connected with second washing material conveyer belt 312 feed end through third branch material conveyer belt 213, baffle box 234 discharge end is stored the storehouse 53 through fourth branch material conveyer belt 214 and clay powder and is connected.
The utility model discloses an among the preferred embodiment, the regeneration aggregate is the regeneration fine aggregate that the particle diameter is less than 4.75mm, the regeneration fine aggregate includes regeneration fine aggregate B1, regeneration fine aggregate B2, regeneration fine aggregate B3, one or several kinds in the regeneration fine aggregate B4, regeneration fine aggregate B1 is the fragment of brick regeneration fine aggregate of particle diameter 1.18mm ~2.36mm, regeneration fine aggregate B2 is the fragment of brick regeneration fine aggregate of particle diameter 2.36mm ~4.75mm, regeneration fine aggregate B3 is the concrete regeneration fine aggregate of particle diameter 1.18mm ~2.36mm, regeneration fine aggregate B4 is the concrete regeneration fine aggregate of particle diameter 2.36mm ~4.75 mm. In actual processing, the particle size of the recycled fine aggregate may vary to some extent depending on the processing equipment, and for example, the particle sizes of the recycled fine aggregate B1 and the recycled fine aggregate B3 may be 1mm to 3mm, and the particle sizes of the recycled fine aggregate B2 and the recycled fine aggregate B4 may be 3mm to 5 mm. As for brick recycled fine aggregates, red brick recycled fine aggregates are mainly used in China at present, the recycled fine aggregates have huge stock in northern areas of China, and the prior art is difficult to digest quickly in time.
Correspondingly, the aperture of the first-stage screen 231 is 4.75mm (4 meshes), the aperture of the second-stage screen 232 is 2.36mm (8 meshes), and the aperture of the third-stage screen 233 is 1.18mm (16 meshes). During actual processing, in order to facilitate the manufacture of the screen, the aperture of the first-stage screen 231 can also be 5mm, the aperture of the second-stage screen 232 can also be 3mm, and the aperture of the third-stage screen 233 can also be 1 mm.
In a preferred embodiment of the present invention, the sieve holes of the first-stage sieve 231, the second-stage sieve 232, and the third-stage sieve 233 are round holes.
In a preferred embodiment of the present invention, each stage of the screen includes at least two sets of vertical parallel screens of the same size.
The round hole type screen meshes which are vertically arranged in parallel are adopted to easily realize accurate control of the particle size, and simultaneously, aggregates with smaller particle size deviation are easier to screen, so that the stacking density of the aggregates is larger, and the aggregates can be more easily used for preparing self-compacting concrete for pouring a masonry structure.
The utility model discloses an in the preferred embodiment, the dust removal room 22 is connected with clay powder storage bin 53 through dust recovery system 6.
The utility model discloses an among the preferred embodiment, divide material conveyer belt 21 discharge end to loop through washing material conveyer belt 31 down section, parallel section, the section of going upward and air-drying material conveyer belt 41 feed end and be connected, washing material conveyer belt 31 down section stretches into rinsing pond 32 liquid level, and washing material conveyer belt 31 parallel section is located rinsing pond 32 liquid level below, and washing material conveyer belt 31 goes upward the section and stretches out rinsing pond 32 liquid level.
The utility model discloses an among the preferred embodiment, rinsing pond 32 is rubbish sludge deposition pool 33 all around, and rinsing pond 32 liquid level is held level with rinsing pond 32 top, and rinsing pond 32 top is higher than rubbish sludge deposition pool 33 top, and rubbish sludge deposition pool 33 upper portion is passed through circulating water filter 34 and is connected bottom rinsing pond 32, and rubbish sludge deposition pool 33 passes through rubbish sludge recycling system 7 and is connected with powder clay storage bin 53.
The design makes the water flow direction in the rinsing pool 32 mainly flow from the bottom of the rinsing pool 32 to the top of the rinsing pool 32, and in the process, the garbage and silt in the rinsing pool 32 finally diffuse into the garbage sludge sedimentation pool 33 around the rinsing pool 32.
The utility model discloses an among the preferred embodiment, washing material conveyer belt 31 is the waterlogging caused by excessive rainfall conveyer belt, and washing material conveyer belt 31 surface is equipped with evenly distributed's trench, and this trench makes the fine aggregate can not washed material conveyer belt 31 by rivers disturbance roll-off washing in-process.
In a preferred embodiment of the present invention, the garbage scraper 35 is erected on the top of the washing tank 32, the garbage scraper 35 is provided with a garbage scraper 351 capable of reciprocating, the garbage scraper 35 is provided with a garbage baffle 352 near the upper section of the washing material conveyor belt 31, and the bottom end of the garbage baffle 352 is located below the liquid level of the washing tank 32.
In a preferred embodiment of the present invention, the garbage scraper 351 is provided with a brush with a gap or a corrugated structure below the garbage scraper, so that the garbage scraper 351 does not disturb water flow when removing garbage.
The recycled fine aggregate can be prepared into a saturated water state while being cleaned by adjusting the length and the water flow speed of the washing tank 32 or the length, the angle and the running speed of the washing material conveyor belt 31.
The utility model discloses an in the preferred embodiment, air-dry material conveyer belt 41 is the waterlogging caused by excessive rainfall conveyer belt, and air-dry material conveyer belt 41 top is equipped with air-dry unit 42, and air-dry material conveyer belt 41 below is connected with rubbish sludge settling pond 33 through water recovery system 8.
The utility model discloses an in the preferred embodiment, air-dry material conveyer belt 41 still is equipped with vibrating device to this air-dry efficiency that can improve the thin aggregate of regeneration.
The recycled fine aggregate can be prepared into the recycled fine aggregate in a saturated water state without floating water on the surface by adjusting the number, the size and the position of air drying devices of the air drying unit 42 or adjusting the length, the angle and the running speed of the air drying material conveying belt 41.
The utility model discloses an in the preferred embodiment, raw materials conveyer belt 11 feed end, divide material conveyer belt 21 feed end, air-dry material conveyer belt 41 feed end all are equipped with the baffle that prevents the aggregate landing.
The utility model discloses an in the preferred embodiment, storehouse 511 feed end is stored through first air-dried material conveyer belt 411 and first fine aggregate to first washing material conveyer belt 311 discharge end and is connected, and storehouse 512 feed end is stored through second air-dried material conveyer belt 412 and second fine aggregate to second washing material conveyer belt 312 discharge end and is connected, and storehouse 511 discharge end and second fine aggregate are stored to first fine aggregate and storehouse 512 discharge end are connected with two feed ends of compounding measurement bagging apparatus 54 respectively.
When in specific use:
as shown in fig. 1-3, according to the utility model discloses a production method of recycled aggregate sorting preparation automation line, production method includes the following step:
s1, crushing the recycled aggregate and placing the crushed recycled aggregate in the raw material storage bin 12;
s2, conveying the recycled aggregate in the raw material storage bin 12 to the feed end of a sorting and screening machine 23 in the dust removal room 22 through the blanking controller 121 and the raw material conveyor belt 11 in sequence;
s3, conveying the coarse aggregate which cannot pass through the primary screen 231 to the coarse aggregate storage bin 52 through the first distribution conveyor belt 211, conveying the first fine aggregate which passes through the primary screen 231 but cannot pass through the secondary screen 232 to the first washing conveyor belt 311 through the second distribution conveyor belt 212, conveying the second fine aggregate which passes through the secondary screen 232 but cannot pass through the tertiary screen 233 to the second washing conveyor belt 312 through the third distribution conveyor belt 213, conveying the powder which passes through the tertiary screen 233 to the clay powder storage bin 53 through the material guide groove 234 and the fourth distribution conveyor belt 214 in sequence, and conveying the dust in the dust removal room 22 to the clay powder storage bin 53 through the dust recovery system 6;
s4, cleaning the first fine aggregate and the second fine aggregate in a washing tank 32 to prepare fine aggregate in a saturated water state, conveying the first fine aggregate and the second fine aggregate to an air drying system 4 through a washing material conveyor belt 31, transferring garbage in the washing tank 32 to a garbage sludge sedimentation tank 33 through a water flow or a garbage scraper 351, conveying a large amount of silt, a small amount of sawdust, paper scraps and plastic particles in the garbage sludge sedimentation tank 33 to a clay powder storage bin 53 through a garbage sludge recovery system 7, and injecting water at the upper part of the garbage sludge sedimentation tank 33 into the bottom of the washing tank 32 through a circulating water filter device 34;
s5, blowing the surface floating water of the fine aggregate away from the fine aggregate by the air dryer 42, allowing the surface floating water to flow into the water recovery system 8 through the draining holes of the air dryer conveyor belt 41, allowing the surface floating water to flow into the garbage sludge sedimentation tank 33 through the water recovery system 8, removing floating water and residual garbage from the fine aggregate in a saturated water state in the air dryer system 4, and conveying the first fine aggregate and the second fine aggregate to the first fine aggregate storage bin 511 and the second fine aggregate storage bin 512 respectively through the air dryer conveyor belt 41;
s6, the fine aggregates with different particle diameters in the first fine aggregate storage bin 511 and the second fine aggregate storage bin 512 are sealed and bagged according to a specific proportion by a mixed material metering bagging device 54 and can be used for preparing self-compacting concrete for masonry structure pouring, the coarse aggregates in the coarse aggregate storage bin 52 can be used for preparing cushion or base concrete, and the clay and powder in the clay and powder storage bin 53 can be used for preparing sintered bricks.
The recycled fine aggregate with no floating water on the surface in a saturated water state prepared by the production method can overcome the problem of interference of high water absorption of the aggregate to the quality stability of concrete, which cannot be solved when the recycled fine aggregate is applied in the prior art; the utility model can keep the glass and the stone saltpeter in the recycled aggregate, and the components can improve the strength of the concrete; the utility model discloses can be used to carry out further refining to existing recycled aggregate in the market and select separately the processing, also can directly dock the crushing equipment that current building garbage disposal used.
In summary, the utility model can realize the refined sorting of the recycled aggregate and effectively utilize the garbage and the sewage generated in the sorting process, and greatly improve the resource utilization rate on the premise of being beneficial to environmental protection; the utility model provides a be applied to the thin aggregate of regeneration and prepare masonry structure and pour into reasonable technical scheme with self-compaction concrete, be difficult to obtain the high application scene of economic value for the thin aggregate of regeneration that effectively handles in a large number at present, can provide new technical support for the energy saving and emission reduction work of china's building materials trade.
While particular embodiments of the present invention have been illustrated and described, it would be obvious that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims (9)
1. The utility model provides a preparation automation line is selected separately to recycled aggregate, includes raw materials system (1), its characterized in that, raw materials system (1) is connected with screening system (2) through raw materials conveyer belt (11), screening system (2) are connected with cleaning system (3) through dividing material conveyer belt (21), cleaning system (3) are connected with air-dry system (4) through washing material conveyer belt (31), air-dry system (4) are connected with fine aggregate storage storehouse (51) of finished product system (5) through air-drying material conveyer belt (41).
2. The automatic production line for sorting and preparing recycled aggregate according to claim 1, wherein the feeding end of the raw material conveyor belt (11) is connected with the discharging end of the raw material storage bin (12), and the discharging end of the raw material storage bin (12) is provided with a blanking controller (121).
3. The automatic production line for sorting and preparing recycled aggregate according to claim 2, wherein the screening system (2) comprises a dust removing room (22), a sorting screen (23) is arranged in the dust removing room (22), the feeding end of the sorting screen (23) is connected with the discharging end of the raw material conveyor belt (11), the sorting screen (23) at least comprises a first-stage screen (231), a second-stage screen (232), a third-stage screen (233) and a guide chute (234) from top to bottom, the discharging end of the first-stage screen (231) is connected with the coarse aggregate storage bin (52) through a first sorting conveyor belt (211), the discharging end of the second-stage screen (232) is connected with the feeding end of the first washing conveyor belt (311) through a second sorting conveyor belt (212), and the discharging end of the third-stage screen (233) is connected with the feeding end of the second washing conveyor belt (312) through a third sorting conveyor belt (213), the discharge end of the material guide groove (234) is connected with a clay powder storage bin (53) through a fourth material distribution conveyor belt (214).
4. The automated production line for sorting and preparing recycled aggregates according to claim 3, characterized in that the dedusting room (22) is connected with the clay powder storage bin (53) through a dust recovery system (6).
5. The automatic production line for sorting and preparing recycled aggregate according to claim 4, characterized in that the discharge end of the distribution conveyor belt (21) sequentially passes through the descending section, the parallel section and the ascending section of the washing conveyor belt (31) and is connected with the feed end of the air drying conveyor belt (41), the descending section of the washing conveyor belt (31) extends into the liquid level of the washing tank (32), the parallel section of the washing conveyor belt (31) is positioned below the liquid level of the washing tank (32), and the ascending section of the washing conveyor belt (31) extends out of the liquid level of the washing tank (32).
6. The automatic production line for sorting and preparing recycled aggregate according to claim 5, wherein a garbage sludge sedimentation tank (33) is arranged around the washing tank (32), the liquid level of the washing tank (32) is equal to the top end of the washing tank (32), the top end of the washing tank (32) is higher than the top end of the garbage sludge sedimentation tank (33), the upper part of the garbage sludge sedimentation tank (33) is connected with the bottom of the washing tank (32) through a circulating water filtering device (34), and the garbage sludge sedimentation tank (33) is connected with the clay powder storage bin (53) through a garbage sludge recovery system (7).
7. The automatic production line for sorting and preparing recycled aggregates according to claim 6, wherein a garbage scraper (35) is erected at the top of the washing tank (32), the garbage scraper (35) is provided with a garbage scraper (351) capable of reciprocating, a garbage baffle (352) is arranged on one side of the garbage scraper (35) close to the ascending section of the washing material conveyor belt (31), and the bottom end of the garbage baffle (352) is located below the liquid level of the washing tank (32).
8. The automatic production line for sorting and preparing recycled aggregates according to claim 7, wherein the air-dried material conveyor belt (41) is a draining conveyor belt, an air drying unit (42) is arranged above the air-dried material conveyor belt (41), and the lower part of the air-dried material conveyor belt (41) is connected with the garbage sludge sedimentation tank (33) through a water recovery system (8).
9. The automatic production line for sorting and preparing recycled aggregate according to claim 8, wherein the discharge end of the first washing conveyor (311) is connected with the feed end of a first fine aggregate storage bin (511) through a first air drying conveyor (411), the discharge end of the second washing conveyor (312) is connected with the feed end of a second fine aggregate storage bin (512) through a second air drying conveyor (412), and the discharge ends of the first fine aggregate storage bin (511) and the second fine aggregate storage bin (512) are respectively connected with the two feed ends of the mixing material metering and bagging device (54).
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| CN114853376A (en) * | 2022-06-20 | 2022-08-05 | 北京达诺筑工科技发展有限公司 | Automatic production line for sorting and preparing recycled aggregate and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114853376A (en) * | 2022-06-20 | 2022-08-05 | 北京达诺筑工科技发展有限公司 | Automatic production line for sorting and preparing recycled aggregate and production method thereof |
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