CN116328919A - Dedusting asphalt pavement milling material crushing and circulating screening device - Google Patents
Dedusting asphalt pavement milling material crushing and circulating screening device Download PDFInfo
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- CN116328919A CN116328919A CN202310370780.8A CN202310370780A CN116328919A CN 116328919 A CN116328919 A CN 116328919A CN 202310370780 A CN202310370780 A CN 202310370780A CN 116328919 A CN116328919 A CN 116328919A
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- water
- crusher
- hopper
- conveyer belt
- dust
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- 239000000463 material Substances 0.000 title claims abstract description 97
- 239000010426 asphalt Substances 0.000 title claims abstract description 91
- 238000003801 milling Methods 0.000 title claims abstract description 82
- 238000012216 screening Methods 0.000 title claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 135
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 23
- 239000010865 sewage Substances 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 15
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- -1 polyethylene Polymers 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000003595 mist Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 3
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920002873 Polyethylenimine Polymers 0.000 description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 3
- 229920001400 block copolymer Polymers 0.000 description 3
- 229920002678 cellulose Chemical class 0.000 description 3
- 239000001913 cellulose Chemical class 0.000 description 3
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- QXLPXWSKPNOQLE-UHFFFAOYSA-N methylpentynol Chemical class CCC(C)(O)C#C QXLPXWSKPNOQLE-UHFFFAOYSA-N 0.000 description 3
- DXYUWQFEDOQSQY-UHFFFAOYSA-N n'-octadecylpropane-1,3-diamine Chemical compound CCCCCCCCCCCCCCCCCCNCCCN DXYUWQFEDOQSQY-UHFFFAOYSA-N 0.000 description 3
- 229920002401 polyacrylamide Chemical class 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- 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
-
- 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
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a dedusting asphalt pavement milling material crushing and circulating screening device, wherein the lower end of a first conveyor belt is positioned below a hopper outlet, the upper end of the first conveyor belt is positioned above a feeding hole of a multi-stage vibrating screen, the multi-stage vibrating screen is provided with an outlet and a discharging hole, the outlet of the multi-stage vibrating screen is communicated with the feeding hole of a crusher, the discharging hole of the multi-stage vibrating screen is positioned above a third conveyor belt, the discharging hole of the crusher is positioned above a fourth conveyor belt, the fourth conveyor belt is positioned above a fifth conveyor belt, and the fifth conveyor belt is positioned above the feeding hole of the multi-stage vibrating screen. The invention firstly screens the asphalt milling materials with proper grain size before entering the crusher, thereby reducing the number of asphalt milling material screens entering the crusher; after the crusher is used for crushing, the asphalt milling material screen crushed by the fourth conveyor belt and the fifth conveyor belt is sent into the multi-stage vibrating screen again for screening, so that all asphalt milling materials are ensured to be crushed into proper sizes.
Description
Technical Field
The invention relates to the field of asphalt pavement milling material recovery, in particular to a dust removal asphalt pavement milling material crushing and circulating screening device.
Background
During construction, the old pavement can generate a large amount of asphalt pavement milling materials, and the old pavement can be stacked or discarded at will, so that not only does the land occupy, but also environmental pollution can be caused, and meanwhile, a large amount of waste is caused by stone and asphalt resources in the waste materials.
Therefore, the asphalt pavement milling material is recycled, a large amount of asphalt and sand materials can be saved, engineering cost is saved, environmental pollution is reduced, the treatment of asphalt pavement waste residues is avoided, and the economic and environmental benefits are very outstanding.
The asphalt waste treatment method comprises the following steps: the method comprises the steps of digging aged waste, transporting to a recycling plant, crushing and screening the waste, mixing and stirring the waste with a proper amount of new asphalt, new aggregate and the like, and preparing the new asphalt material, wherein the new asphalt material is mainly used for paving road base layers or surface layers, lower layers and the like.
In the crushing and screening links of asphalt pavement milling materials, a large amount of dust can be generated, the pollution to air is extremely high, and meanwhile, the health of workers working beside is greatly damaged. The existing crushing and screening equipment is often only provided with a fog gun machine nearby to remove dust, and the dust removal effect is not ideal.
Disclosure of Invention
The invention aims to solve the problems, provides a milling material crushing and circulating screening device for a dust-removing asphalt pavement, and solves the problem that the existing crushing and screening device is not ideal in dust-removing effect.
A dust-removing asphalt pavement milling material crushing and circulating screening device, comprising: hopper, first conveyer belt, multistage shale shaker, breaker, fourth conveyer belt and fifth conveyer belt, the lower extreme of first conveyer belt is located the below of hopper export, the upper end of first conveyer belt is located the top of multistage shale shaker feed inlet, multistage shale shaker has export and discharge gate, the export of multistage shale shaker is linked together with the feed inlet of breaker, the discharge gate of multistage shale shaker is located the third conveyer belt top, the discharge gate of breaker is located the top of fourth conveyer belt, the fourth conveyer belt is located the top of fifth conveyer belt, the fifth conveyer belt is located the top of multistage shale shaker feed inlet.
On the basis of the technical scheme, the automatic discharging device further comprises a first nozzle and a discharging valve, wherein an edge is formed above the hopper, the first nozzle is located inside the edge and fixedly connected with the edge, and the lower part of the outlet of the hopper is fixedly connected with the discharging valve and is communicated with the discharging valve.
On the basis of the technical scheme, the automatic discharging device further comprises a conical protection plate and a fixing rod, wherein the conical protection plate is located above the discharging valve, the conical protection plate is located inside the hopper, and two ends of the fixing rod are fixedly connected with the inner wall of the hopper and the conical protection plate respectively.
On the basis of the technical scheme, the sewage treatment device further comprises a first water return tank and a first water return pipe, wherein the first water return tank is located below the discharge valve and the first conveyor belt, the first water return tank is fixedly connected with the first water return pipe, the first water return pipe is communicated with the sewage treatment device, the sewage treatment device is communicated with the water inlet of the water pump, and the water outlet of the water pump is communicated with the first spray head.
On the basis of the technical scheme, the hopper and the material frame are positioned below the discharge port of the multi-stage vibrating screen and fixedly connected with the multi-stage vibrating screen, and the material frame is positioned below the third conveyor belt;
the automatic fog gun machine is positioned on the side face of the hopper.
On the basis of the technical scheme, the crusher comprises a crusher shell, a screen plate, a transmission shaft, a rotor disc, a hammer head and a counterattack plate, wherein the lower part of the crusher shell is fixedly connected with the screen plate, the transmission shaft penetrates through the crusher shell and is rotationally connected with the crusher shell, the rotor disc is fixedly connected with the transmission shaft, the hammer head is rotationally connected with the rotor disc, and the counterattack plate is fixedly connected with the inner part of the crusher shell.
On the basis of the technical scheme, the novel rotary shaft further comprises a rotary joint and a water pipe, an axial shaft inner cavity is formed in the transmission shaft, a stepped hole is formed in the transmission shaft in the radial direction, the stepped hole is communicated with the shaft inner cavity, a through hole is formed in the rotor disc in the radial direction, the water pipe penetrates through the through hole and penetrates into the stepped hole, the water pipe is fixedly connected with the transmission shaft and the rotor disc, and the rotary joint is communicated with the shaft inner cavity;
the water pipe is characterized by further comprising a second spray head which is in threaded connection with the water pipe.
On the basis of the technical scheme, the crusher is a jaw crusher, a tooth roller crusher or a hammer crusher.
On the basis of the technical scheme, the crusher also comprises a baffle and a spring, wherein the baffle is positioned at a feed inlet of the crusher and is rotationally connected with the crusher shell, and the spring is connected with the baffle and drives the baffle to rotate outwards;
the sewage treatment device is communicated with the water inlet of the water pump, and the water outlet of the water pump is communicated with the rotary joint.
On the basis of the technical scheme, asphalt dispersing agents are added into water sprayed out of the water pipe.
The asphalt dispersant is one or more than one of 12-hydroxystearic acid, epsilon-caprolactone, polyethylene polyamine, N-dimethylaminopropylamine, octadecyl aminopropylamine, diethyl ethanolamine, poly-built-in polyol-polyethylenimine block copolymer, alkylphenol polyoxyethylene, modified branched alcohol ether ethoxy compound, polyacrylamide, methylpentanol, cellulose derivative and sodium dodecyl sulfate.
The dispersing agent enables components of the asphalt milling material to be well dispersed with each other so as to facilitate crushing, and the asphalt sticking crusher is placed.
The invention has the following advantages:
1. before entering the crusher, screening operation is carried out firstly, asphalt milling materials with proper particle size are screened out, and the number of asphalt milling material screens entering the crusher is reduced;
2. after the crusher is used for crushing, the asphalt milling material screen crushed by the fourth conveyor belt and the fifth conveyor belt is sent into the multi-stage vibrating screen again for screening, so that all asphalt milling materials are ensured to be crushed into proper sizes;
3. the surface of the asphalt milling material is completely soaked in a water pool in the hopper, so that dust diffusion into the air in the subsequent transportation, screening and crushing processes is reduced;
4. the water pipe sprays water in the crusher to settle dust generated in the crushing process, so that the overflow of the dust to the crusher is reduced;
5. the water sprayed out of the water pipe in the crusher absorbs heat of the crusher and asphalt milling materials, so that the temperature of the crusher and the asphalt milling materials is reduced, and the asphalt milling materials are prevented from being heated and softened in the crushing process;
6. the water pipe is in interference fit with the rotor disc and the transmission shaft respectively, so that the rotor disc and the transmission shaft are fixed, the stress between the rotor disc and the transmission shaft is more uniform, and meanwhile, the rotor disc and the transmission shaft do not need to be connected by keys.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only one embodiment of the present invention, and that other embodiments of the drawings may be derived from the drawings provided without inventive effort for a person skilled in the art.
Fig. 1: schematic top view structure of the invention;
fig. 2: a schematic diagram of a front cross-sectional structure of the hopper;
fig. 3: schematic diagram of the front view structure of a multistage vibrating screen and a crusher (tooth roller crusher);
fig. 4: schematic diagram of the front view structure of a multistage vibrating screen and a crusher (hammer crusher);
fig. 5: schematic side-view cross-sectional structure of the crusher;
fig. 6: schematic diagram of a front cross-sectional structure of the crusher;
fig. 7: a partially enlarged schematic view of the structure at a in fig. 6.
Detailed Description
The invention is further illustrated by the following figures and examples:
embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Embodiment one:
as shown in fig. 1 to 7, the present embodiment provides a dust-removing asphalt pavement milling material crushing and circulating screening device, comprising: hopper 1, first conveyer belt 2, multistage shale shaker 4, breaker 5, fourth conveyer belt 6 and fifth conveyer belt 7, the lower extreme of first conveyer belt 2 is located the below of hopper 1 export, the upper end of first conveyer belt 2 is located the top of multistage shale shaker 4 feed inlet, multistage shale shaker 4 has export and discharge gate, the export of multistage shale shaker 4 is linked together with the feed inlet of breaker 5, the discharge gate of multistage shale shaker 4 is located the third conveyer belt 42 top, the discharge gate of breaker 5 is located the top of fourth conveyer belt 6, fourth conveyer belt 6 is located the top of fifth conveyer belt 7, fifth conveyer belt 7 is located the top of multistage shale shaker 4 feed inlet.
On the basis of the technical scheme, the automatic feeding device further comprises a first spray head 12 and a discharge valve 13, wherein an edge 11 is formed above the hopper 1, the first spray head 12 is positioned inside the edge 11 and fixedly connected with the edge 11, and the lower part of an outlet of the hopper 1 is fixedly connected with the discharge valve 13 and is communicated with the discharge valve 13.
On the basis of the technical scheme, the automatic discharging device further comprises a conical protection plate 14 and a fixing rod 15, wherein the conical protection plate 14 is located above the discharging valve 13, the conical protection plate 14 is located inside the hopper 1, and two ends of the fixing rod 15 are fixedly connected with the inner wall of the hopper 1 and the conical protection plate 14 respectively.
On the basis of the technical scheme, the sewage treatment device further comprises a first water return tank 3 and a first water return pipe 31, wherein the first water return tank 3 is positioned below the discharge valve 13 and the first conveyor belt 2, the first water return tank 3 is fixedly connected with the first water return pipe 31, the first water return pipe 31 is communicated with the sewage treatment device 10, the sewage treatment device 10 is communicated with the water inlet of the water pump 16, and the water outlet of the water pump 16 is communicated with the first spray head 12.
On the basis of the technical scheme, the hopper 41 and the material frame 43 are arranged below the discharge hole of the multi-stage vibrating screen 4, the hopper 41 is fixedly connected with the multi-stage vibrating screen 4, and the material frame 43 is arranged below the third conveyor belt 42;
the automatic fog gun machine further comprises a fog gun machine 8, and the fog gun machine 8 is located on the side face of the hopper 1.
On the basis of the above technical solution, asphalt dispersant is added to the water sprayed from the water pipe 57.
The asphalt dispersant is one or more than one of 12-hydroxystearic acid, epsilon-caprolactone, polyethylene polyamine, N-dimethylaminopropylamine, octadecyl aminopropylamine, diethyl ethanolamine, poly-built-in polyol-polyethylenimine block copolymer, alkylphenol polyoxyethylene, modified branched alcohol ether ethoxy compound, polyacrylamide, methylpentanol, cellulose derivative and sodium dodecyl sulfate.
Working principle:
before asphalt milling materials are put into the hopper 1, the first spray nozzles 12 in the peripheral edges 11 spray water curtain to shield the upper opening of the hopper 1, and the fog gun machine 8 sprays water mist to shield the upper opening of the hopper 1. Wherein, the water smoke is located the water curtain top, and the dust of smaller particle diameter can be intercepted to water smoke.
The dumper or other vehicles with the milling materials throw the asphalt milling materials into the hopper 1 from the upper part of the hopper 1, and the asphalt milling materials sequentially pass through the water mist and the water curtain, so that part of the surfaces of the asphalt milling materials are wetted by water. And then, the asphalt milling material continuously falls into a water pool at the bottom of the hopper 1, so that the surface of the asphalt milling material is completely soaked in water. Wherein, water is arranged in the bottom of the hopper 1, and the water source is water curtain falling. During the pouring process, dust of asphalt milling materials can be contacted with water mist and a water curtain to settle.
The discharge valve 13 works to gradually convey asphalt milling materials downwards, and water flows out of the discharge valve 13 into the first water return tank 3 while conveying the asphalt milling materials, so that the balance of the water level at the bottom of the hopper 1 is maintained.
Asphalt milling materials fall into the lower end of the first conveyor belt 2 after leaving the discharge valve 13, the first conveyor belt 2 drives the asphalt milling materials to move upwards to above the multi-stage vibrating screen 4, and then the asphalt milling materials fall into the multi-stage vibrating screen 4. In the vibration process, the multi-stage vibration screen 4 discharges asphalt milling materials from different discharge holes according to the size of the particle size, and the asphalt milling materials with overlarge particle size are discharged into the crusher 5 from the outlet. The asphalt milling material discharged from the discharge port falls into the third conveyor belt 42 through the hopper 41, and is driven by the third conveyor belt 42 into the material frame 43.
The asphalt milling material with the oversized particle size falls into the crusher 5 from the feed inlet of the crusher 5 and is crushed by the hammer head 55 in the crusher 5.
The crushed asphalt milling materials fall onto a fourth conveyor belt 6 from the screen plate 52, the fourth conveyor belt 6 drives the crushed asphalt milling materials to a fifth conveyor belt 7, and the fifth conveyor belt 7 drives the crushed asphalt milling materials to the position above a feed inlet of the multi-stage vibrating screen 4, so that secondary screening is performed.
Embodiment two:
as shown in fig. 1, 2 and 4 to 7, the present embodiment provides a dust-removing asphalt pavement milling material crushing and circulating screening device, which includes: hopper 1, first conveyer belt 2, multistage shale shaker 4, breaker 5, fourth conveyer belt 6 and fifth conveyer belt 7, the lower extreme of first conveyer belt 2 is located the below of hopper 1 export, the upper end of first conveyer belt 2 is located the top of multistage shale shaker 4 feed inlet, multistage shale shaker 4 has export and discharge gate (the export is the export of the too big milling material that does not satisfy the requirement of particle diameter, and the discharge gate is the export of the milling material that satisfies the requirement of particle diameter), the export of multistage shale shaker 4 is linked together with the feed inlet of breaker 5, the discharge gate of multistage shale shaker 4 is located third conveyer belt 42 top, the discharge gate of breaker 5 is located the top of fourth conveyer belt 6, fourth conveyer belt 6 is located the top of fifth conveyer belt 7, fifth conveyer belt 7 is located the top of multistage shale shaker 4 feed inlet. A hopper (not shown in the figures) through which milling material passes is provided between the fourth conveyor belt 6 and the fifth conveyor belt 7, so as to avoid that milling material does not fall over the fifth conveyor belt 7.
On the basis of the technical scheme, the automatic feeding device further comprises a first spray head 12 and a discharge valve 13, wherein an edge 11 is formed above the hopper 1, the first spray head 12 is positioned inside the edge 11 and fixedly connected with the edge 11, a water pipe of the first spray head 12 penetrates through the edge 11 to be connected with a pressure water source, and the lower part of an outlet of the hopper 1 is fixedly connected with the discharge valve 13 and is communicated with the discharge valve 13. Preferably, the discharge valve 13 is a star-shaped discharge valve.
On the basis of the technical scheme, the automatic discharging device further comprises a conical protection plate 14 and a fixing rod 15, wherein the conical protection plate 14 is located above the discharging valve 13, the conical protection plate 14 is located inside the hopper 1, and two ends of the fixing rod 15 are fixedly connected with the inner wall of the hopper 1 and the conical protection plate 14 respectively. The fixing bar 15 has a space for the milling material to pass through.
On the basis of the technical scheme, the sewage treatment device further comprises a first water return tank 3 and a first water return pipe 31, wherein the first water return tank 3 is positioned below the discharge valve 13 and the first conveyor belt 2, the first water return tank 3 is fixedly connected with the first water return pipe 31, the first water return pipe 31 is communicated with the sewage treatment device 10, the sewage treatment device 10 is communicated with the water inlet of the water pump 16, and the water outlet of the water pump 16 is communicated with the first spray head 12.
On the basis of the technical scheme, the hopper 41 and the material frame 43, wherein the hopper 41 is positioned below a discharge hole of the multi-stage vibrating screen 4 and is fixedly connected with the multi-stage vibrating screen 4, and the material frame 43 is positioned below the third conveyor belt 42. Preferably, the multi-stage vibrating screen 4 has a plurality of discharge openings, each of which has a different size of particle size of milled material.
On the basis of the technical scheme, the crusher 5 is a hammer crusher, the crusher 5 comprises a crusher shell 51, a screen plate 52, a transmission shaft 53, a rotor disc 54, a hammer head 55 and a counterattack plate 56, the lower part of the crusher shell 51 is fixedly connected with the screen plate 52, the transmission shaft 53 penetrates through the crusher shell 51 and is rotationally connected with the crusher shell 51, the rotor disc 54 is fixedly connected with the transmission shaft 53, the hammer head 55 is rotationally connected with the rotor disc 54, and the counterattack plate 56 is fixedly connected with the inside of the crusher shell 51.
The device also comprises a motor (not shown in the figure) and a driven wheel 59, wherein the motor drives a driving wheel (not shown in the figure) to rotate, the driving wheel drives the driven wheel 59 to rotate through a belt, and the driven wheel 59 is fixedly connected with the transmission shaft 53 so as to drive the transmission shaft 53 to rotate.
On the basis of the technical scheme, the novel rotary joint further comprises a rotary joint 50 and a water pipe 57, an axial shaft cavity 530 is formed in the transmission shaft 53, a stepped hole 531 is formed in the transmission shaft 53 in the radial direction, the stepped hole 531 is communicated with the shaft cavity 530, a through hole 540 is formed in the rotor disc 54 in the radial direction, the water pipe 57 penetrates through the through hole 540 and penetrates into the stepped hole 531, the water pipe 57 is fixedly connected with the transmission shaft 53 and the rotor disc 54, and the rotary joint 50 is communicated with the shaft cavity 530. Wherein the water pipe 57 is a steel round pipe.
On the basis of the above technical solution, the spray head further comprises a second spray head 571, and the second spray head 571 is in threaded connection with the water pipe 57. The water droplets ejected using the second nozzle 571 are smaller or the water mist is ejected.
On the basis of the technical scheme, the crusher further comprises a baffle plate 58 and a spring 581, wherein the baffle plate 58 is positioned at a feed inlet of the crusher 5, the baffle plate 58 is rotatably connected with the crusher shell 51, and the spring 581 is connected with the baffle plate 58 and drives the baffle plate 58 to rotate outwards. The baffle plate 58 has two functions to avoid asphalt milling materials from directly striking the internal structure of the crusher 5, and secondly, the baffle plate plays a role in shielding dust generated in the crushing process of the crusher 5, so that the dust is reduced from overflowing outwards.
On the basis of the technical scheme, the automatic fog gun machine further comprises a fog gun machine 8, and the fog gun machine 8 is located on the side face of the hopper 1. Preferably, the fog gun machine 8 is positioned above the hopper 1 and is fixedly connected with the hopper 1.
On the basis of the technical scheme, the sewage treatment device further comprises a second water return tank 9, wherein the second water return tank 9 is positioned below the fourth conveying belt 6, the fourth conveying belt 6 is communicated with the sewage treatment device 10, the sewage treatment device 10 is communicated with the water inlet of the water pump 16, and the water outlet of the water pump 16 is communicated with the rotary joint 50.
On the basis of the above technical solution, asphalt dispersant may be added to the water sprayed from the water pipe 57. The asphalt dispersant may be added at the water inlet or return water tank of the water pump 16.
The asphalt dispersant is one or more than one of 12-hydroxystearic acid, epsilon-caprolactone, polyethylene polyamine, N-dimethylaminopropylamine, octadecyl aminopropylamine, diethyl ethanolamine, poly-built-in polyol-polyethylenimine block copolymer, alkylphenol polyoxyethylene, modified branched alcohol ether ethoxy compound, polyacrylamide, methylpentanol, cellulose derivative and sodium dodecyl sulfate.
Working principle:
before asphalt milling materials are put into the hopper 1, the first spray nozzles 12 in the peripheral edges 11 spray water curtain to shield the upper opening of the hopper 1, and the fog gun machine 8 sprays water mist to shield the upper opening of the hopper 1. Wherein, the water smoke is located the water curtain top, and the dust of smaller particle diameter can be intercepted to water smoke.
The dumper or other vehicles with the milling materials throw the asphalt milling materials into the hopper 1 from the upper part of the hopper 1, and the asphalt milling materials sequentially pass through the water mist and the water curtain, so that part of the surfaces of the asphalt milling materials are wetted by water. And then, the asphalt milling material continuously falls into a water pool at the bottom of the hopper 1, so that the surface of the asphalt milling material is completely soaked in water. Wherein, water is arranged in the bottom of the hopper 1, and the water source is water curtain falling. During the pouring process, dust of asphalt milling materials can be contacted with water mist and a water curtain to settle.
The discharge valve 13 works to gradually convey asphalt milling materials downwards, and water flows out of the discharge valve 13 into the first water return tank 3 while conveying the asphalt milling materials, so that the balance of the water level at the bottom of the hopper 1 is maintained.
Asphalt milling materials fall into the lower end of the first conveyor belt 2 after leaving the discharge valve 13, the first conveyor belt 2 drives the asphalt milling materials to move upwards to above the multi-stage vibrating screen 4, and then the asphalt milling materials fall into the multi-stage vibrating screen 4. In the vibration process, the multi-stage vibration screen 4 discharges asphalt milling materials from different discharge holes according to the size of the particle size, and the asphalt milling materials with overlarge particle size are discharged into the crusher 5 from the outlet. The asphalt milling material discharged from the discharge port falls into the third conveyor belt 42 through the hopper 41, and is driven by the third conveyor belt 42 into the material frame 43.
The asphalt milling material with the oversized particle size falls into the crusher 5 from the feed inlet of the crusher 5 and is crushed by the hammer head 55 in the crusher 5. During crushing, water under pressure enters the shaft cavity 530 through the rotary joint 50 and is ejected outwardly from the shaft cavity 530 through the water tube 57.
Wherein, the asphalt milling material has residual water on the surface, and when the asphalt milling material is crushed, the water sprayed by the water pipe 57 contacts with the crushing surface, thereby reducing the diffusion of dust generated by crushing into the air.
The crushed asphalt milling materials fall onto a fourth conveyor belt 6 from the screen plate 52, the fourth conveyor belt 6 drives the crushed asphalt milling materials to a fifth conveyor belt 7, and the fifth conveyor belt 7 drives the crushed asphalt milling materials to the position above a feed inlet of the multi-stage vibrating screen 4, so that secondary screening is performed.
The water in the first water return tank 3 and the second water return tank 9 is reused after being filtered by the sewage treatment device 10, and the water inlet of the water pump 16 is simultaneously communicated with a water supply network so as to supplement water to the device.
The present invention has been described above by way of example, but the present invention is not limited to the above-described embodiments, and any modifications or variations based on the present invention fall within the scope of the present invention.
Claims (10)
1. The utility model provides a dust removal pitch road surface mills broken circulation screening plant of planing material which characterized in that includes: hopper (1), first conveyer belt (2), multistage shale shaker (4), breaker (5), fourth conveyer belt (6) and fifth conveyer belt (7), the lower extreme of first conveyer belt (2) is located the below of hopper (1) export, the upper end of first conveyer belt (2) is located the top of multistage shale shaker (4) feed inlet, multistage shale shaker (4) have export and discharge gate, the export of multistage shale shaker (4) is linked together with the feed inlet of breaker (5), the discharge gate of multistage shale shaker (4) is located the top of third conveyer belt (42), the discharge gate of breaker (5) is located the top of fourth conveyer belt (6), fourth conveyer belt (6) are located the top of fifth conveyer belt (7), the top of fifth conveyer belt (7) is located the top of multistage shale shaker (4) feed inlet.
2. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 1, wherein: the automatic discharging device is characterized by further comprising a first spray head (12) and a discharging valve (13), wherein an edge (11) is formed above the hopper (1), the first spray head (12) is located inside the edge (11) and fixedly connected with the edge (11), and the lower part of an outlet of the hopper (1) is fixedly connected with the discharging valve (13) and is communicated with the discharging valve (13).
3. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 2, wherein: still include toper guard plate (14) and dead lever (15), toper guard plate (14) are located discharge valve (13) top, toper guard plate (14) are located inside hopper (1), the both ends of dead lever (15) respectively with hopper (1) inner wall and toper guard plate (14) fixed connection.
4. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 2, wherein: still include first return water pond (3) and first wet return (31), first return water pond (3) are located the below of discharge valve (13) and first conveyer belt (2), first return water pond (3) and first wet return (31) fixed connection, first wet return (31) are linked together with sewage treatment plant (10), sewage treatment plant (10) are linked together with the water inlet of water pump (16), the delivery port of water pump (16) is linked together with first shower nozzle (12).
5. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 1, wherein: the hopper (41) and the material frame (43), wherein the hopper (41) is positioned below a discharge hole of the multi-stage vibrating screen (4) and is fixedly connected with the multi-stage vibrating screen (4), and the material frame (43) is positioned below the third conveying belt (42);
the automatic fog gun machine also comprises a fog gun machine (8), wherein the fog gun machine (8) is positioned on the side face of the hopper (1).
6. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 1, wherein: the crusher (5) comprises a crusher shell (51), a screen plate (52), a transmission shaft (53), a rotor disc (54), a hammer head (55) and a counterattack plate (56), wherein the lower part of the crusher shell (51) is fixedly connected with the screen plate (52), the transmission shaft (53) penetrates through the crusher shell (51) and is rotationally connected with the crusher shell (51), the rotor disc (54) is fixedly connected with the transmission shaft (53), the hammer head (55) is rotationally connected with the rotor disc (54), and the counterattack plate (56) is fixedly connected with the inside of the crusher shell (51).
7. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 6, wherein: the rotary joint comprises a rotary joint body (50) and a water pipe (57), wherein an axial shaft cavity (530) is formed in the transmission shaft (53), a stepped hole (531) is formed in the transmission shaft (53) in a radial direction, the stepped hole (531) is communicated with the shaft cavity (530), a through hole (540) is formed in the rotor disc (54) in a radial direction, the water pipe (57) penetrates through the through hole (540) and penetrates into the stepped hole (531), the water pipe (57) is fixedly connected with the transmission shaft (53) and the rotor disc (54), and the rotary joint body (50) is communicated with the shaft cavity (530);
a second spray head (571) is also included, the second spray head (571) being in threaded connection with the water pipe (57).
8. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 7, wherein: the crusher is a jaw crusher, a toothed roller crusher or a hammer crusher.
9. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 7, wherein: the novel crushing machine further comprises a baffle plate (58) and a spring (581), wherein the baffle plate (58) is positioned at a feed inlet of the crusher (5), the baffle plate (58) is rotationally connected with the crusher shell (51), and the spring (581) is connected with the baffle plate (58) and drives the baffle plate (58) to rotate outwards;
the sewage treatment device is characterized by further comprising a second water return tank (9), wherein the second water return tank (9) is positioned below the fourth conveying belt (6), the fourth conveying belt (6) is communicated with the sewage treatment device (10), the sewage treatment device (10) is communicated with a water inlet of a water pump (16), and a water outlet of the water pump (16) is communicated with a rotary joint (50).
10. The dust-removed asphalt pavement milling material crushing and circulating screening device according to claim 7, wherein: asphalt dispersing agent is added into water sprayed out of the water pipe (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310370780.8A CN116328919A (en) | 2023-04-07 | 2023-04-07 | Dedusting asphalt pavement milling material crushing and circulating screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310370780.8A CN116328919A (en) | 2023-04-07 | 2023-04-07 | Dedusting asphalt pavement milling material crushing and circulating screening device |
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| CN116328919A true CN116328919A (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310370780.8A Pending CN116328919A (en) | 2023-04-07 | 2023-04-07 | Dedusting asphalt pavement milling material crushing and circulating screening device |
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| CN (1) | CN116328919A (en) |
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| CN209302860U (en) * | 2018-12-19 | 2019-08-27 | 巩义市站街恒通机械厂 | A kind of fine crusher |
| CN113578444A (en) * | 2021-07-22 | 2021-11-02 | 简新新 | Building rubbish reducing mechanism capable of reducing dust |
| CN215655653U (en) * | 2021-07-07 | 2022-01-28 | 江苏湘林嘉雨机械有限公司 | Large-scale casing is used to mine breaker |
| CN115212987A (en) * | 2022-07-01 | 2022-10-21 | 江苏省交通工程建设局 | Asphalt milling, planing and material screening and crushing integrated machine |
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2023
- 2023-04-07 CN CN202310370780.8A patent/CN116328919A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036071A (en) * | 2008-08-01 | 2010-02-18 | Nakayama Iron Works Ltd | Impact type crusher |
| CN206911534U (en) * | 2017-07-04 | 2018-01-23 | 梁溪区旭中通用机械设计工作室 | A kind of environment-friendly construction waste disintegrating apparatus |
| CN208307975U (en) * | 2018-03-28 | 2019-01-01 | 北京首钢国际工程技术有限公司 | A kind of humidifier for block material |
| CN208554407U (en) * | 2018-05-24 | 2019-03-01 | 江西石城县南方有色选矿设备制造有限公司 | A kind of new and effective hammer mill |
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| CN115212987A (en) * | 2022-07-01 | 2022-10-21 | 江苏省交通工程建设局 | Asphalt milling, planing and material screening and crushing integrated machine |
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