CN110976289A - Aggregate manufacturing system, grading device and blending device - Google Patents
Aggregate manufacturing system, grading device and blending device Download PDFInfo
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- CN110976289A CN110976289A CN201911324833.2A CN201911324833A CN110976289A CN 110976289 A CN110976289 A CN 110976289A CN 201911324833 A CN201911324833 A CN 201911324833A CN 110976289 A CN110976289 A CN 110976289A
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- 238000002156 mixing Methods 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 219
- 239000002245 particle Substances 0.000 claims abstract description 27
- 238000013329 compounding Methods 0.000 claims abstract description 20
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 81
- 239000000843 powder Substances 0.000 claims description 71
- 238000012216 screening Methods 0.000 claims description 42
- 238000005192 partition Methods 0.000 claims description 19
- 238000007664 blowing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 19
- 239000002699 waste material Substances 0.000 abstract description 18
- 210000000988 bone and bone Anatomy 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 7
- 239000002023 wood Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
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- 230000000704 physical effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 241000771208 Buchanania arborescens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention belongs to the technical field of constructional engineering, and particularly relates to a bone material manufacturing system, a grading device and a blending device. The aggregate manufacturing system comprises a crushing device, wherein the crushing device is used for crushing raw materials and outputting crushed materials; the grading device is used for grading the crushed materials so as to divide the crushed materials into a plurality of grades according to particle sizes and/or gravity; and a compounding device for mixing different grades of crushed material and additives to make an aggregate. According to the aggregate manufacturing system provided by the embodiment of the invention, the raw materials are crushed, graded and mixed in proportion, so that the high-quality aggregate meeting the construction requirements can be obtained, wherein the raw materials can use construction waste, the recycling of the construction waste can be realized, and the aggregate manufacturing system has the characteristics of environmental protection and energy saving.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a bone material manufacturing system, a grading device and a blending device.
Background
Aggregate, also known as "aggregate", is a granular material that serves as a framework and a filler in concrete and mortar. The aggregate can be divided into fine aggregate and coarse aggregate, the particle diameter of the fine aggregate is between 0.16 and 5mm, and the particle diameter of the coarse aggregate is more than 5 mm. The existing fine aggregate generally adopts natural sand, such as river sand, sea sand, valley sand and the like, and when the natural sand is lacked, artificial sand ground by hard rocks can be used; crushed stones and pebbles are commonly used as the coarse aggregate.
The construction waste refers to residue, waste soil, waste material, sludge and other wastes generated in the process of constructing, laying, dismantling and repairing various buildings, structures, pipe networks and the like by construction, construction units or individuals, and is usually treated in a landfill mode, so that the occupied area is large, and the construction waste cannot be effectively utilized.
The prior art provides methods for preparing aggregates by using construction wastes, but the methods usually only roughly crush the construction wastes and then put into use, and the obtained aggregates have poor quality and cannot meet the actual use requirements.
Disclosure of Invention
The embodiment of the invention aims to provide an aggregate manufacturing system, and aims to solve the problem that methods for manufacturing aggregates by using construction waste are provided in the prior art, but the methods are usually used after the construction waste is roughly crushed, and the obtained aggregates are poor in quality and cannot meet actual use requirements.
The embodiment of the present invention is achieved as follows, in an aggregate manufacturing system, the aggregate manufacturing system including:
the crushing device is used for crushing the raw material and outputting a crushed material;
the grading device is used for grading the crushed materials so as to divide the crushed materials into a plurality of grades according to particle sizes and/or gravity; and
a compounding device for mixing different grades of crushed material and additives to make an aggregate.
Another object of an embodiment of the present invention is to provide a classification device, which includes an air separation device and a screening device;
the air separation device is used for separating coarse materials from powder materials in the crushed materials; the air separation device comprises an air separation chamber and a material collecting hopper, wherein the material collecting hopper is communicated with the air separation chamber and is used for storing air-separated powder;
the air separation chamber is provided with an air inlet, a feed inlet, a coarse material outlet and a powder outlet; the air inlet is arranged on one side of the top of the air separation chamber and is connected with the outlet of the fan through a pipeline; the feed inlet is arranged in the center of the top of the air separation chamber, is opposite to the coarse material outlet and is used for adding crushed materials into the air separation chamber; the coarse material outlet is provided with a valve, is opposite to the coarse material conveying belt and is used for outputting coarse materials; the powder outlet is arranged at the top of the air separation chamber, is connected with the aggregate bin through a pipeline and is used for conveying the air-separated powder to the aggregate bin;
the screening device is used for carrying out classification treatment on the coarse materials and comprises a hoisting machine and a screening chamber; the hoister is used for hoisting the coarse materials to be conveyed into the screening chamber; the screening chamber is used for grading the coarse material.
Another object of an embodiment of the present invention is to provide a compounding device, which includes a feeding device and a mixing bin;
the feeding device is used for conveying crushed materials to be mixed to the mixing bin, and comprises a coarse material feeding device and a powder feeding device; an outlet of the coarse material feeding device is connected with the top of the mixing bin and is used for feeding coarse materials into the mixing bin; the powder feeding device is provided with four discharge ports, the discharge ports are communicated with the upper side wall of the mixing bin, the four discharge ports are arranged at equal angles along the circumferential direction of the mixing bin, and each of the four discharge ports is provided with a second fan which is used for blowing powder in a pipeline of the powder feeding device into the mixing bin and forming annular cyclone in the mixing bin;
the side wall of the lower part of the mixing material bin is communicated with an outlet of a first fan, the first fan is used for supplying air into the mixing material bin to mix materials, an opening is formed in the bottom of the mixing material bin, and the opening is opposite to the conveying belt.
According to the aggregate manufacturing system provided by the embodiment of the invention, the crushing device is used for crushing to obtain the crushed materials with the particle size meeting the requirement, the grading device is used for grading the crushed materials to obtain the graded crushed materials with different properties, and the compounding device is used for compounding the graded crushed materials according to a certain proportion to obtain the aggregates with different side weight properties.
Drawings
Fig. 1 is a block diagram of a bone material manufacturing system according to an embodiment of the present invention;
fig. 2 is a structural diagram of an air separation device provided in an embodiment of the present invention;
fig. 3 is a structural diagram of a first partition plate in the air separation device according to the embodiment of the present invention;
fig. 4 is a structural diagram of a second partition plate in the air separation device provided by the embodiment of the invention;
FIG. 5 is a block diagram of a screening device provided in an embodiment of the present invention;
FIG. 6 is a front view of a compounding device provided by an embodiment of the present invention;
FIG. 7 is a top view of a compounding device provided by an embodiment of the present invention.
In the drawings: 1. a crushing device; 2. a grading device; 21. a winnowing device; 211. a collection hopper; 212. an air inlet cavity; 213. an air separation cavity; 214. a powder chamber; 215. a first separator; 216. a swing plate; 217. a second separator; 22. a screening device; 221. a hoist; 222. screening a screen; 223. a hopper; 3. a compounding device; 31. a mixing bin; 32. a first fan; 33. a coarse material feeding device; 34. a powder feeding device; 35. and a second fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, an overall schematic view of a aggregate manufacturing system according to an embodiment of the present invention includes:
the crushing device 1 is used for crushing raw materials and outputting crushed materials;
a grading device 2, wherein the grading device 2 is used for grading the crushed materials so as to divide the crushed materials into a plurality of grades according to particle sizes and/or gravity; and
a compounding device 3, said compounding device 3 being adapted to mix different grades of crushed material and additives to make an aggregate.
In the embodiment of the present invention, the crushing apparatus 1 is used to crush the raw material into crushed material having a desired particle size. In the embodiment of the invention, the raw material is preferably construction waste; the construction waste can be crushed by the crushing device 1, and in particular, the crushing device 1 can be an existing crushing device, such as a jaw crusher and the like. Since crushing to obtain crushed material is only the first part of the system of the present invention, the requirements for the obtained crushed material are lower, and the present invention does not make any further improvements to the crushing device 1.
In the embodiment of the present invention, the classifying device 2 is used for classifying the crushed materials to obtain crushed materials with different particle sizes or weights. It will be appreciated that in the examples of the present invention, the crushed material is classified according to the particle size, mainly because the physical properties of different particle sizes are different greatly, for example, when the material with large particle size is used as aggregate, the structural strength is better, but the binding capacity with other materials is poorer, and the material with small particle size is opposite. Therefore, the classification of the crushed material by particle size is actually a classification by physical properties thereof. And according to gravity grading on the one hand, the influence of particle size is considered, on the other hand, certain impurity removal function can be realized, for example, for wood impurities with large proportion in the construction waste, light wood impurities can be removed through gravity grading after crushing, the purity of the crushed material is improved, and the quality of the aggregate is improved.
In the embodiment of the invention, the mixing device is used for proportionally mixing the crushed materials with different particle sizes, and it is understood that various additives can be added as required when the mixing device is used for mixing, so that more properties are given to the aggregate. By the mixing mode, the proportion of the crushed materials with different particle diameters can be controlled, so that the comprehensive performance of the aggregate is adjusted, the aggregate is suitable for different occasions, the quality of the crushed materials is improved,
according to the aggregate manufacturing system provided by the embodiment of the invention, the aggregates with different side-weight performances can be obtained by crushing, grading and mixing the construction waste, so that the recycling of the construction waste is realized, the quality of the aggregates is improved, and the manufactured aggregates produced by the construction waste can meet the requirements of actual production.
As shown in fig. 2 and 5, as a preferred embodiment of the present invention, the grading device 2 comprises an air separation device 21 and a screening device 22;
the air separation device 21 is used for separating coarse materials from powder materials in the crushed materials;
the screening device 22 is used for classifying the coarse materials.
In the embodiment of the invention, the so-called air separation is to realize screening by utilizing the action of wind, and is realized by utilizing the mass difference of the crushed materials actually, so that the finer crushed materials can be screened out, and meanwhile, wood impurities in the construction waste can also be screened out in an air separation mode due to the smaller mass of the wood impurities, so that the separation of coarse and fine materials is realized.
In the present embodiment, the screening device 22 is used to classify the crushed material according to its particle size; since the physical properties of the crushed materials having different particle diameters are greatly different when used as aggregates, it is necessary to classify the crushed materials according to the particle diameters.
The aggregate manufacturing system provided by the embodiment of the invention realizes classification by winnowing and screening the crushed materials, can realize classification of crushing with different particle sizes, and can remove light impurities in the crushed materials, thereby improving the impurity content of the aggregate and improving the quality of the aggregate.
As shown in fig. 2, as another preferred embodiment of the present invention, the air separation device 21 comprises an air separation chamber and a hopper 211, wherein the hopper 211 is communicated with the air separation chamber and used for storing air-separated powder;
the air separation chamber is provided with an air inlet, a feed inlet, a coarse material outlet and a powder outlet;
the air inlet is arranged on one side of the top of the air separation chamber and is connected with the outlet of the fan through a pipeline;
the feed inlet is arranged in the center of the top of the air separation chamber, is opposite to the coarse material outlet and is used for adding crushed materials into the air separation chamber;
the coarse material outlet is provided with a valve, is opposite to the coarse material conveying belt and is used for outputting coarse materials;
the powder outlet is arranged at the top of the air separation chamber, is connected with the hopper 211 through a pipeline and is used for conveying the air-separated powder to the hopper 211.
In the embodiment of the invention, the air separation chamber is connected with the fan through the air inlet, and actually, in the embodiment of the invention, the fan can be replaced by an air supply system, and the same effect can be realized by utilizing compressed air to realize air separation.
In the embodiment of the present invention, the crushed material is fed into the air separation chamber through the feeding hole, alternatively, the crushed material may be fed into the air separation chamber manually, or may be fed by using a feeding device, such as the rotary elevator 221, and the like, which is not particularly limited in the embodiment of the present invention.
In the embodiment of the invention, the coarse material outlet is provided with a valve which can be normally opened or normally closed; in the normally open setting, the coarse material can be discharged immediately onto the conveyor belt, and in the normally closed setting, the coarse material can be discharged together only when it has accumulated to a certain amount. In the embodiment of the present invention, the coarse material outlet faces the conveyor belt, and the coarse material is conveyed to the next processing link through the conveyor belt, however, other transportation methods may also be adopted, and the embodiment of the present invention is not particularly limited to this.
In the embodiment of the present invention, the powder outlet is connected to the hopper 211, and the powder is temporarily stored through the hopper 211. In the embodiment of the present invention, the air separation device 21 may be provided with a plurality of sets, and the plurality of sets are connected in series, for example, two sets may be provided, a first set is used for removing wood impurities in the crushed material by air separation, and a second set is used for separating powder, wherein the coarse material outlet of the first set of air separation device 21 is connected with the material inlet of the second set of air separation device 21. Of course, the first set of air separation device 21 may be used for screening wood impurities and powder, the second set of air separation device 21 may be used for separating the powder from the wood impurities, and at this time, the powder outlet of the first set of air separation device 21 is connected to the material inlet of the second set of air separation device 21. The two sets of air separation devices 21 are basically identical in structure, and differ only in the size of the wind power and the size of the mesh openings used for screening.
According to the aggregate manufacturing system provided by the embodiment of the invention, the separation of powder and coarse materials can be realized through the air separation devices 21, and the separation of light impurities such as wood and the like can be further realized through the series connection of a plurality of sets of air separation devices 21, so that the impurity content of the aggregate is favorably reduced, and the quality of the aggregate is improved.
As shown in fig. 2 to 4, as another preferred embodiment of the present invention, the air separation chamber is provided with an air inlet chamber 212, an air separation chamber 213 and a powder chamber 214;
the air inlet cavity 212 is connected with the air inlet, the air inlet cavity 212 is separated from the air separation cavity 213 through a first partition plate 215, an air outlet groove is formed in the first partition plate 215, and an opening of the air outlet groove is deviated to the coarse material outlet;
the winnowing cavity 213 is internally provided with an oscillating plate 216, when the crushed materials are accumulated on the oscillating plate 216 to a preset weight, the oscillating plate 216 can oscillate along an eccentrically arranged rotating shaft so that the crushed materials enter the coarse material outlet;
the powder cavity 214 and the winnowing cavity 213 are separated by a second partition board 217, a powder outlet groove is formed in the second partition board 217, and an opening of the powder outlet groove is deviated to the feeding hole.
In the embodiment of the present invention, the first partition 215 and the second partition 217 are similar to the louver structure, and the direction of the air outlet slot is deviated to a certain direction. For the first partition plate 215, the included angle between the air outlet direction and the falling direction of the crushed materials in the winnowing chamber is less than 90 degrees, and for the second partition plate 217, the included angle between the air outlet direction and the falling direction of the crushed materials in the winnowing chamber is more than 90 degrees. Through the setting of first baffle 215, can prevent that broken material from entering into air inlet chamber 212, be favorable to the powder that is selected simultaneously to enter into powder chamber 214, and the flow direction of wind in the air selection chamber is opposite with the whereabouts direction of broken material, can improve the relative velocity of wind and broken material to improve the screening effect. Fig. 3 and 4 respectively show the structure schematic diagram of the air outlet side of the first partition plate 215 and the air inlet side of the second partition plate 217, and it should be understood that fig. 3 and 4 only show the structure of the portion of the partition plate where the air outlet slots are provided, and do not mean that the air outlet slots are provided on the whole partition plate, for example, the portion of the first partition plate 215 near and below the swing plate 216 in fig. 2, and the air outlet slots are not provided any more, so as to prevent the crushed materials accumulated on the swing plate 216 from entering the air inlet cavity 212 through the air outlet slots, which is an optional arrangement.
In the embodiment of the present invention, the air separation chamber 213 is further provided with a swing plate 216, a rotating shaft is provided on the swing plate 216 at a position deviating from the center of gravity thereof, the swing plate 216 can rotate around the rotating shaft, a weight block is provided on the side of the lower side of the swing plate 216 close to the rotating shaft, when no crushed material acts, the swing plate 216 collides with the inner wall of the air separation chamber 213, a fixed inclination angle is maintained, and the fallen crushed material stays above the swing plate 216 and at the lower end of the inclined surface; when the crushed material on the swing plate 216 is accumulated to a certain amount, the swing plate 216 is turned, and the crushed material enters the lower side of the air separation cavity 213 and is discharged through the valve. With this arrangement, the falling crushed material can still react with the wind, and the wind can blow the powder on the surface of the falling crushed material into the powder chamber 214, so that the screening is more thorough.
According to the aggregate manufacturing system provided by the embodiment of the invention, the separation of coarse materials and powder materials can be realized through the air separation chamber, and part of light impurities can be removed, so that the purity of the crushed materials is improved, and the quality of the aggregate is further improved.
As shown in fig. 5, as another preferred embodiment of the present invention, the sieving device 22 includes a lifter 221 and a sieving chamber;
the elevator 221 is used for lifting the coarse material to be conveyed into the screening chamber;
the screening chamber is used for grading the coarse material.
In the embodiment of the present invention, the elevator 221 may be a rotary elevator 221, or may be an inclined conveyor belt, a vibrating feeder, or the like, to lift the crushed material to a high position. These are optional specific implementation manners, and the embodiment of the present invention is not limited to this specifically.
In the present embodiment, the screening device 22 further comprises a screening chamber, and the screening chamber in this embodiment is used for further classifying the coarse material, and the classification is mainly realized by using the difference of the particle sizes of the coarse material.
The aggregate manufacturing system provided by the embodiment of the invention further screens the coarse materials through the screening device 22, so that the coarse materials can be divided into a plurality of grades to prepare for subsequent mixing.
As shown in fig. 5, as another preferred embodiment of the present invention, a screen 222 is obliquely arranged in the screening chamber, the screen 222 is divided into a plurality of sections, and the aperture of each section is sequentially increased along the oblique direction; a plurality of hoppers 223 are arranged at the bottom of the screen 222 corresponding to each section of the screen 222.
In the embodiment of the present invention, the screen 222 is disposed to be inclined, so that the crushed material can naturally fall by the gravity of the crushed material, and during the falling process, the crushed material having a large particle size is located in the upper layer, and the crushed material having a small particle size is located in the lower layer. Since the aperture of the screen 222 increases in the oblique direction, the crushed material having a small particle size is gradually screened out through the screen 222 during the falling process, and falls into a hopper 223 provided below the screen 222. In the embodiment of the present invention, the number of the hoppers 223 is the same as the number of the segments of the screen 222, the bottom of the hopper 223 is provided with an opening, the opening is provided with a valve, and the crushed material can be discharged out of the collecting device or the transporting device by opening the valve. For example, a conveyor belt is arranged at the bottom, and the crushed materials can be directly conveyed to the next link.
As shown in fig. 6 and 7, as another preferred embodiment of the present invention, the compounding device 3 includes a feeding device and a mixing bin 31;
the feeding device is used for conveying the crushed materials to be mixed to the mixing bin 31;
the side wall of the lower part of the mixing material bin 31 is communicated with an outlet of a first fan 32, the fan is used for supplying air into the mixing material bin 31 to mix materials, an opening is formed in the bottom of the mixing material bin 31, and the opening is opposite to a conveying belt.
In the embodiment of the present invention, the feeding device is used for inputting the classified crushed materials into the blending bin 31, and the multiple crushed materials can be mixed in proportion by adjusting the rotation speed of the conveying device, it should be understood that the multiple crushed materials refer to multiple crushed materials with different particle sizes or different gravities obtained after being classified by the classifying device 2, and of course, various required additives and other auxiliary materials may be added in the blending process, and the embodiment of the present invention is not limited specifically.
In the embodiment of the present invention, the lower portion of the mixing bin 31 is communicated with the air outlet of the first fan 32, and pressurized air can be introduced into the mixing bin 31 through the first fan 32, so as to facilitate the mixing of the crushed materials in the mixing bin 31. It should be understood that the wind from the first fan 32 mainly acts on the crushed materials with lighter weight to mix them with the crushed materials with larger diameter more uniformly during the falling process, and this mixing method mainly utilizes the falling process of the crushed materials to realize mixing during the falling process. Compared with the mode of stirring to realize mixing, the mode has the advantages that the crushed materials with smaller grain diameter, such as powder, can directly fall into the bottom layer of the coarse material under the stirring action during stirring, and the more violent the stirring, the more obvious the condition is; in addition, the stirring system does not allow the additives added to the aggregate to be well mixed with the crushed materials, and the liquid or powdery additives can be dispersed well by the air flow, thereby improving the mixing effect.
According to the aggregate manufacturing system provided by the embodiment of the invention, the pressurized air is introduced into the mixing bin 31, so that powder or auxiliary agents and the like can be better mixed, the mixing mode is smaller in energy consumption relative to stirring, and the aggregate manufacturing system can be better combined with the characteristic of meat without meat when being applied to mixing of aggregates.
As shown in fig. 6 and 7, as another preferred embodiment of the present invention, the feeding device includes a coarse material feeding device 33 and a fine material feeding device 34;
an outlet of the coarse material feeding device 33 is connected with the top of the mixing bin 31 and is used for feeding coarse materials into the mixing bin 31;
powder material feeding unit 34 has four discharge gates, the discharge gate with the upper portion lateral wall intercommunication of blending bunker 31, and four discharge gates are followed the angular setting such as the circumference of blending bunker 31 is four the discharge gate all is provided with second fan 35 for blow in the powder material feeding unit 34 pipeline in the blending bunker 31, and form annular whirlwind in the blending bunker 31.
In the embodiment of the present invention, the coarse material feeding device 33 mainly lifts the coarse material to the top of the mixing bin 31 and then discharges the coarse material into the mixing bin 31, and the coarse material lifting specifically may use a spiral feeder, a vibration feeder, and the like, which is not specifically limited in this embodiment of the present invention. In the embodiment of the present invention, the coarse material is fed into the mixing bin 31 mainly by its own weight. It is to be understood that coarse and fine are relative concepts, and that the particle sizes of coarse and fine materials may be relatively close.
In the embodiment of the present invention, the powder feeding device 34 lifts the powder, and injects the powder into the mixing bin 31 through four discharge ports, and the four discharge ports are provided with the second fans 35, and the powder is blown into the mixing bin 31 by the wind generated by the second fans 35. In the embodiment of the invention, the wind is arranged at equal angles along the circumferential direction of the mixing bin 31, the wind outlet direction of each second fan 35 is tangent to the edge of the mixing bin 31, and the wind generated by the second fans 35 can form annular cyclone in the mixing bin 31, which is beneficial to improving the mixing effect of aggregate; further, the height of the second fan 35 increases progressively along the circumferential direction of the mixing bin 31 to form a spiral arrangement, so that the annular wind in the mixing bin 31 can form a component force in the axial direction, and the powder or the auxiliary agent and the like can move along the axial direction of the mixing bin 31 while performing spiral movement, thereby improving the mixing effect. It will be appreciated that powder feed 34, similar to coarse feed 33, can be proportioned by adjusting the rate of delivery.
According to the aggregate manufacturing system provided by the embodiment of the invention, the broken materials can be prepared and mixed in proportion through the mixing device 3, so that the aggregate is manufactured. In this way, the performance of the prepared aggregate in certain aspect can be improved, so that the prepared aggregate is suitable for different construction occasions.
As shown in fig. 2 to 5, the embodiment of the present invention further provides a classification device 2, wherein the classification device 2 includes an air separation device 21 and a screening device 22;
the air separation device 21 is used for separating coarse materials from powder materials in the crushed materials; the winnowing device 21 comprises a winnowing chamber and a hopper 211, wherein the hopper 211 is communicated with the winnowing chamber and is used for storing winnowed powder;
the air separation chamber is provided with an air inlet, a feed inlet, a coarse material outlet and a powder outlet; the air inlet is arranged on one side of the top of the air separation chamber and is connected with the outlet of the fan through a pipeline; the feed inlet is arranged in the center of the top of the air separation chamber, is opposite to the coarse material outlet and is used for adding crushed materials into the air separation chamber; the coarse material outlet is provided with a valve, is opposite to the coarse material conveying belt and is used for outputting coarse materials; the powder outlet is arranged at the top of the air separation chamber, is connected with the hopper 211 through a pipeline and is used for conveying the air-separated powder to the hopper 211;
the screening device 22 is used for grading the coarse materials, and the screening device 22 comprises a hoisting machine 221 and a screening chamber; the elevator 221 is used for lifting the coarse material to be conveyed into the screening chamber; the screening chamber is used for grading the coarse material.
The grading device 2 provided in the embodiment of the present invention includes, but is not limited to, a combination of the grading devices 2 provided in any of the above embodiments, and for explanation of each component of the grading device 2, reference may be made to the above related embodiments, and details of the embodiment of the present invention are not described again.
As shown in fig. 6 to 7, the embodiment of the present invention further provides a compounding device 3, wherein the compounding device 3 comprises a feeding device and a mixing bin 31;
the feeding device is used for conveying crushed materials to be mixed to the mixing bin 31, and comprises a coarse material feeding device 33 and a powder material feeding device 34; an outlet of the coarse material feeding device 33 is connected with the top of the mixing bin 31 and is used for feeding coarse materials into the mixing bin 31; the powder feeding device 34 is provided with four discharge ports, the discharge ports are communicated with the upper side wall of the mixing bin 31, the four discharge ports are arranged at equal angles along the circumferential direction of the mixing bin 31, and the four discharge ports are provided with second fans 35 for blowing powder in the pipeline of the powder feeding device 34 into the mixing bin 31 and forming annular whirlwind in the mixing bin 31;
the utility model discloses a mixing material mixing device, including blending bunker 31, first fan 32 is used for to the export intercommunication with first fan 32 on the lateral wall of blending bunker 31 lower part, first fan 32 is used for to supply air in the blending bunker 31 in order to realize the mixture of material, the bottom of blending bunker 31 is provided with the opening, and the opening is just to the conveyer belt.
The compounding device 3 provided by the embodiment of the present invention includes, but is not limited to, a combination of the compounding devices 3 provided by any of the above embodiments, and the explanation of the components of the compounding device 3 can refer to the related embodiments described above, and the details are not repeated in the embodiment of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An aggregate manufacturing system, comprising:
the crushing device is used for crushing the raw material and outputting a crushed material;
the grading device is used for grading the crushed materials so as to divide the crushed materials into a plurality of grades according to particle sizes and/or gravity; and
a compounding device for mixing different grades of crushed material and additives to make an aggregate.
2. The aggregate making system of claim 1, wherein the grading device comprises an air classification device and a screening device;
the air separation device is used for separating coarse materials from powder materials in the crushed materials;
the screening device is used for carrying out classification treatment on the coarse materials.
3. The aggregate manufacturing system of claim 2, wherein the air separation device comprises an air separation chamber and a collection hopper, the collection hopper is communicated with the air separation chamber and is used for storing the air-separated powder;
the air separation chamber is provided with an air inlet, a feed inlet, a coarse material outlet and a powder outlet;
the air inlet is arranged on one side of the top of the air separation chamber and is connected with the outlet of the fan through a pipeline;
the feed inlet is arranged in the center of the top of the air separation chamber, is opposite to the coarse material outlet and is used for adding crushed materials into the air separation chamber;
the coarse material outlet is provided with a valve, is opposite to the coarse material conveying belt and is used for outputting coarse materials;
the powder outlet is arranged at the top of the air separation chamber, is connected with the aggregate bin through a pipeline and is used for conveying the powder separated by air to the aggregate bin.
4. The aggregate manufacturing system of claim 3, wherein the air separation chamber is provided with an air inlet cavity, an air separation cavity and a powder cavity;
the air inlet cavity is connected with the air inlet, the air inlet cavity and the air separation cavity are separated by a first partition plate, an air outlet groove is formed in the first partition plate, and an opening of the air outlet groove is deviated to the coarse material outlet;
the winnowing cavity is internally provided with a swinging plate, and when the crushed materials are accumulated to a preset weight on the swinging plate, the swinging plate can swing along an eccentrically arranged rotating shaft so that the crushed materials enter the coarse material outlet;
the powder cavity and the winnowing cavity are separated by a second partition plate, a powder outlet groove is formed in the second partition plate, and an opening of the powder outlet groove is deviated to the feeding hole.
5. The aggregate making system of claim 2, wherein the screening device comprises a hoist and a screening chamber;
the hoister is used for hoisting the coarse materials to be conveyed into the screening chamber;
the screening chamber is used for grading the coarse material.
6. The aggregate manufacturing system according to claim 5, wherein a screen is obliquely arranged in the screening chamber, the screen is divided into a plurality of sections, and the aperture of each section is sequentially increased along the oblique direction; and a plurality of hoppers are arranged at the bottom of the screen corresponding to each section of the screen.
7. The aggregate making system according to claim 1, wherein the compounding device comprises a feeding device and a mixing silo;
the feeding device is used for conveying the crushed materials to be mixed to the mixing bin;
the side wall of the lower part of the mixing material bin is communicated with an outlet of a first fan, the first fan is used for supplying air into the mixing material bin to mix materials, an opening is formed in the bottom of the mixing material bin, and the opening is opposite to the conveying belt.
8. An aggregate making system according to claim 7, wherein said feeding means comprises coarse feeding means and/or fine feeding means;
an outlet of the coarse material feeding device is connected with the top of the mixing bin and is used for feeding coarse materials into the mixing bin;
powder material feeding unit has four discharge gates, the discharge gate with the upper portion lateral wall intercommunication of blending bunker, and four discharge gates are followed the angular setting such as circumference of blending bunker, four the discharge gate all is provided with the second fan for blow in the powder material feeding unit pipeline in the blending bunker, and form annular whirlwind in the blending bunker.
9. The grading device is characterized by comprising an air separation device and a screening device;
the air separation device is used for separating coarse materials from powder materials in the crushed materials; the air separation device comprises an air separation chamber and a material collecting hopper, wherein the material collecting hopper is communicated with the air separation chamber and is used for storing air-separated powder;
the air separation chamber is provided with an air inlet, a feed inlet, a coarse material outlet and a powder outlet; the air inlet is arranged on one side of the top of the air separation chamber and is connected with the outlet of the fan through a pipeline; the feed inlet is arranged in the center of the top of the air separation chamber, is opposite to the coarse material outlet and is used for adding crushed materials into the air separation chamber; the coarse material outlet is provided with a valve, is opposite to the coarse material conveying belt and is used for outputting coarse materials; the powder outlet is arranged at the top of the air separation chamber, is connected with the aggregate bin through a pipeline and is used for conveying the air-separated powder to the aggregate bin;
the screening device is used for carrying out classification treatment on the coarse materials and comprises a hoisting machine and a screening chamber; the hoister is used for hoisting the coarse materials to be conveyed into the screening chamber; the screening chamber is used for grading the coarse material.
10. A compounding device, characterized in that the compounding device comprises a feeding device and a mixing silo;
the feeding device is used for conveying crushed materials to be mixed to the mixing bin, and comprises a coarse material feeding device and a powder feeding device; an outlet of the coarse material feeding device is connected with the top of the mixing bin and is used for feeding coarse materials into the mixing bin; the powder feeding device is provided with four discharge ports, the discharge ports are communicated with the upper side wall of the mixing bin, the four discharge ports are arranged at equal angles along the circumferential direction of the mixing bin, and each of the four discharge ports is provided with a second fan which is used for blowing powder in a pipeline of the powder feeding device into the mixing bin and forming annular cyclone in the mixing bin;
the side wall of the lower part of the mixing material bin is communicated with an outlet of a first fan, the first fan is used for supplying air into the mixing material bin to mix materials, an opening is formed in the bottom of the mixing material bin, and the opening is opposite to the conveying belt.
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| CN201911324833.2A CN110976289A (en) | 2019-12-20 | 2019-12-20 | Aggregate manufacturing system, grading device and blending device |
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| CN201911324833.2A CN110976289A (en) | 2019-12-20 | 2019-12-20 | Aggregate manufacturing system, grading device and blending device |
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