CN212052193U - High-quality asphalt mixture coarse aggregate regenerating unit based on microwave technology - Google Patents

High-quality asphalt mixture coarse aggregate regenerating unit based on microwave technology Download PDF

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Publication number
CN212052193U
CN212052193U CN202020545730.0U CN202020545730U CN212052193U CN 212052193 U CN212052193 U CN 212052193U CN 202020545730 U CN202020545730 U CN 202020545730U CN 212052193 U CN212052193 U CN 212052193U
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aggregate
box
stirring
asphalt
rotary
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CN202020545730.0U
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邵珠山
周航
乔汝佳
郭银波
袁媛
陈文文
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The utility model discloses a high-quality bituminous mixture coarse aggregate regenerating unit based on microwave technique, the device is including heating separation case, stirring screening case and pitch collection box. The heating separation box is internally provided with a rotary sieve barrel, a microwave generator and a waveguide, the stirring screening box is provided with a high-pressure spraying system, a rotary roller with a rough surface, a vibrating sieve plate and an air blower, and the box body is externally provided with a circulating water system for supplying water for the high-pressure spraying system. Waste asphalt is subjected to microwave heating separation by a heating separation box, spraying by a stirring screening box and friction by a rotary roller, and asphalt residues attached to the surface of the aggregate are removed, so that the high-quality recycled aggregate is obtained. The device has simple structure and easy realization, can effectively separate the aggregate from the asphaltene and the impurities thereof, and avoids the problems of large energy consumption, low efficiency, large aggregate damage, only use of asphalt mixture for asphalt pavement regeneration and the like of the traditional separation structure.

Description

High-quality asphalt mixture coarse aggregate regenerating unit based on microwave technology
Technical Field
The utility model relates to a building waste handles the field, concretely relates to high-quality bituminous mixture aggregate regenerating unit based on microwave technology.
Background
With the development of technology, the Asphalt Pavement regeneration technology (Recycling Asphalt Pavement, abbreviated as RAP) is applied to certain fields of highway traffic in China. The method is characterized in that the old asphalt pavement is subjected to technological processes of digging, recycling, crushing, screening and the like, and a regenerant, a new asphalt material, a new aggregate and the like are added into the old asphalt pavement according to a certain proportion to be re-mixed into a new asphalt mixture. The whole process of making the asphalt pavement meet certain road performance and paving the asphalt pavement again is called as the regeneration technology of the asphalt pavement. The technology recycles the waste asphalt mixture, reduces the demand of newly-manufactured natural aggregate, disposes the waste asphalt mixture, and has great economic value and environmental protection.
In the existing asphalt pavement regeneration technology, waste asphalt mixture is mechanically crushed into products with different particle sizes, and then the products are subjected to cold mixing or hot mixing technology, the raw materials are proportioned according to the pavement grade requirement and added with new raw materials to form newly-configured asphalt mixture and the newly-configured asphalt mixture is filled on the pavement to play the pavement performance. Thereby realizing the disposal and regeneration of the asphalt mixture. However, there are still some problems in recycling the mixed materials by this technique. 1. When the waste asphalt mixture is directly subjected to mechanical crushing, the crushing mode is rough, the damage to the aggregate is large, and the road performance of the produced recycled mixture is reduced. 2. When the mixture is recycled, asphalt is adhered to the surface of the aggregate, so that the recycled aggregate can only be used for preparing a recycled asphalt mixture. 3. A large amount of new aggregate still needs to be added in the regeneration process of the technology, and the economic benefit and the environmental protection effect are not obvious.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned defect that exists among the prior art, the utility model aims to provide a high-quality bituminous mixture coarse aggregate regenerating unit based on microwave technique, the utility model discloses the device can effectively separate aggregate and asphaltene and debris, and it is big to have avoided traditional isolating construction's energy consumption, and is inefficient, and the aggregate damage is big and bituminous mixture can only be used for bituminous paving regeneration scheduling problem.
The utility model discloses a realize through following technical scheme.
The embodiment of the utility model provides a high-quality asphalt mixture coarse aggregate regenerating unit based on microwave technology, which comprises a heating separation box, a stirring screening box and an asphalt recycling box;
a rotary screen barrel is arranged in the heating separation box, electric rotary doors are arranged at two ends of the rotary screen barrel, a feeding hole and an aggregate outlet which correspond to the electric rotary doors are respectively formed in the side wall of the heating separation box, and the aggregate outlet is communicated with the stirring screening box through an aggregate conveying belt;
the device also comprises a PLC control system, a microwave generator, a waveguide and a thermocouple which are arranged on the heating separation box, wherein the PLC control system is connected with the rotary sieve barrel, the microwave generator and the waveguide; the lower part of the box body is provided with an asphalt conveying plate which is distributed in an inclined way and is communicated with an asphalt conveying belt through an asphalt outlet to be connected with an asphalt recycling box;
the stirring and screening box is internally provided with an inclined baffle butted with the aggregate conveying belt, the stirring and screening box is divided into a roller stirring cavity and a vibrating screening cavity, a rotary roller is arranged in the roller stirring cavity, and the stirring and screening box further comprises a high-pressure spraying system arranged on the stirring and screening box; the vibrating screen cavity is provided with a vibrating screen plate which is obliquely arranged, and the lower part of the vibrating screen plate is communicated with a discharge hole of the stirring screening box.
To above-mentioned technical scheme, the utility model discloses still further preferred scheme:
preferably, the rotary screen barrel is a stainless steel hollow cylinder, screen holes are fully distributed on the side wall of the rotary screen barrel, and the rotary screen barrel is connected with a motor output shaft through a screen barrel center rotating shaft to rotate.
Preferably, the PLC control system is connected with the central rotating shaft of the sieve barrel and the electric rotating door; magnetic aligning devices are respectively arranged on the electric rotating door and the side wall of the heating separation box.
Preferably, an electric telescopic rod is connected to the central rotating shaft of the sieve barrel.
Preferably, a first vibrator is provided below the asphalt transferring plate.
Preferably, an aggregate receiving baffle is arranged at the joint of the aggregate outlet and the outlet of the electric revolving door.
Preferably, a feeding port connected with the tail end of the aggregate conveying belt is arranged on the side wall of the stirring and screening box, the feeding port is in butt joint with an inclined baffle, and the inclined baffle is connected with a sliding partition plate on the side wall of the stirring and screening box.
Preferably, the surface of the rotary roller is provided with a plurality of roller rods, the length of the roller rods is sequentially increased from left to right along the axial direction of the rotary roller, the rotary surface of the rotary roller formed by the roller rods is consistent with the inclination of the inclined baffle, and the surface of the roller rods is in a sawtooth shape.
Preferably, the inclined direction of the vibrating screen plate is opposite to that of the inclined baffle plate, a second vibrator is arranged at the lower part of the vibrating screen plate, and a hole is formed in the vibrating screen plate; and a second air blower butted with the upper part of the vibrating screen plate is arranged on the side wall of the vibrating screen cavity.
Preferably, the high-pressure spraying system comprises high-pressure water spraying heads arranged at the top and the side of the stirring and screening box, the high-pressure water spraying heads are communicated with a circulating water system, the circulating water system is communicated with a water inlet of a water circulating device at the bottom of the vibrating and screening cavity through a circulating water pipe, the circulating water system is communicated with a water tank and a pressurizing device in sequence through a water pump, and the pressurizing device is communicated with the high-pressure water spraying heads.
The utility model discloses owing to take above technical scheme, it has following beneficial effect:
1. the device is provided with microwave heating equipment, and utilizes the characteristic that the asphaltene is changed into the flow state from the solid state after the mixture is heated, and skillfully utilizes the centrifugal force generated by the high-speed rotation of the hollow sieve barrel to separate the aggregate from other impurities such as asphalt. The method avoids the damage to the aggregate caused by mechanical vibration, grinding, crushing and other methods in the traditional process.
2. A high-pressure water spraying system is arranged in the stirring and screening box, and after the aggregates enter, the water is sprayed to the surface of the aggregates with higher temperature to form higher temperature gradient, so that the aggregates are separated from the surface attached asphaltene; meanwhile, the aggregate is washed by high-pressure water, so that the asphalt attached to the surface can be washed clean. The roller rod surface of the roller type crushing device is in a rough sawtooth shape, so that the adhering mortar on the surface of the aggregate can fall off efficiently, and the treatment efficiency and quality can be greatly improved through the combined action of high-pressure water and the rotary roller. Meanwhile, the high-pressure water also has the functions of flushing and cleaning the rotary roller, so that the failure rate is reduced, and the service life is prolonged.
3. In the stirring and screening box, a circulating water system is arranged, so that the cyclic utilization of water resources is realized, the water pollution is avoided, and the cost and the resources are saved.
4. The utility model discloses in, be provided with PLC total and control system for control microwave generator, waveguide realize presetting operating parameter's automatic control to the electric revolving door switching, sieve bucket rotation angular velocity, the rotation time of microwave power, irradiation time, rotatory sieve bucket in the heating separation case, the isoparametric. The automation of equipment operation is realized, so that the equipment operation is simpler and more convenient, and the production efficiency is improved.
5. In the whole implementation process of the utility model, the separation of coarse aggregate and asphalt in the asphalt mixture can be realized without adding chemical reagents, so as to obtain high-quality recycled aggregate and recycled asphalt, thereby improving the added value of finished products; and the device has simple principle, easy operation and outstanding practical performance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the electric revolving door rotating at different angles;
fig. 3 is a flow chart of the method of the present invention.
In the figure: 1. heating the separation box; 2. stirring and screening the box; 3. an asphalt recycling bin; 101. a first blower; 102. a central rotating shaft of the sieve barrel; 103, a PLC control system; 104. a magnetic alignment device; 105. a feed inlet; 106. rotating the sieve barrel; 107. an electric revolving door; 108. an asphalt transfer plate; 109. a first vibrator; 110. an aggregate receiving baffle; 111. an asphalt outlet; 112. an aggregate outlet; 113. a waveguide; 114. a thermocouple; 115. a microwave generator; 116. an aggregate conveyor belt; 117. an asphalt conveyor belt; 201. a motor; 202. a feeding port; 203. a discharge port; 204. a high-pressure water spray head; 205. a roller rod; 206. rotating the roller; 207. an inclined baffle plate; 208. a sliding partition plate; 209. vibrating the sieve plate; 210. a second blower; 211. a second vibrator; 212. a water inlet of the water circulation device; 213. a water pump; 214. a pressurizing device; 215. a water tank; 216. the water inlet of the water tank.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
As shown in figure 1, the embodiment of the utility model provides a high-quality bituminous mixture aggregate regenerating unit based on microwave technique, the device include heating separation case 1, stirring screening case 2 and pitch recovery unit 3. Conveying is carried out between the boxes through a conveying belt, each equipment box is provided with a feeding port and a discharging port, and a circulating water system is arranged outside the stirring and screening box.
Wherein, for the heating separation box 2, the box body is internally provided with a rotary screen barrel 106, the side wall of the box body is respectively provided with a feed inlet 105 and an aggregate outlet 112 corresponding to the rotary screen barrel 106, and the feed inlet 105 is arranged on the side wall of the left side of the box body and is used for adding asphalt mixture. The rotary screen barrel 106 is a stainless steel hollow cylinder, and the rotary screen barrel 106 is convenient to disassemble and can be freely replaced according to actual needs. The side wall is covered with sieve holes, and the aperture is generally set to be 2.36 mm. Electric rotary doors 107 are arranged at two ends of the rotary screen barrel 106 and can be automatically opened and closed, so that mixture (aggregate) can enter and leave conveniently. The electric revolving door 107 is provided with a magnetic aligning device 104 which is respectively positioned on the side walls of the revolving screen barrel 106 and the heating separation box 1, and when the screen barrel is about to stop rotating, the semicircular inlet and outlet of the screen barrel are ensured to be positioned below and respectively aligned with the feeding port and the discharging base plate, so as to facilitate the entering and sliding-out of aggregates.
The rotary screen barrel 106 is supported on the side wall of the box body of the heating separation box 1 through a screen barrel center rotating shaft 102 connected with a motor, the motor controlled by a PLC control system 103 is arranged outside the box body of the heating separation box 1, and the motor drives the screen barrel center rotating shaft 102 to rotate after working, so that the rotary screen barrel 106 is driven to rotate. The central rotating shaft 102 of the sieve barrel is controlled by a PLC (programmable logic controller) comprehensive control system 103, and the central rotating shaft 102 of the sieve barrel can control the rotation of the rotary sieve barrel 106 and push aggregate in the sieve barrel out of the sieve barrel.
An electric telescopic rod is arranged at the central rotating shaft 102 of the sieve barrel, and when a batch of mixture completes rotary separation work inside the sieve barrel, the telescopic rod extends to lift one end of the sieve barrel, so that aggregate inside the sieve barrel leaves the sieve barrel.
The side wall of the heating separation box 1 is also provided with a thermocouple 114, a microwave generator 115 and a waveguide 113 connected with the microwave generator 115, and a protective cover is arranged outside the microwave generator 115 to generate microwaves and heat the mixture. The side wall of the box body is also provided with a first air blower 101 for air exchange between the inside and the outside of the box body.
The rotary screen barrel 106 is provided at both ends thereof with electric rotary doors 107, which are closed when the rotary screen barrel is operated, and opened when the screening work is completed. The internal temperature is monitored in real time in the heated separation tank and by thermocouple 114.
And the PLC control system 103 is also arranged on the side wall of the box body and is used for controlling the microwave generator 115 and the waveguide 113, so that the automatic control of preset operation parameters on the microwave power, the irradiation time, the opening and closing of the electric revolving door 107 of the rotary screen barrel, the rotation angular speed of the screen barrel, the rotation time and the like in the heating separation box is realized.
The central rotating shaft 102 of the sieve barrel is controlled by a PLC (programmable logic controller) comprehensive control system 103, and the central rotating shaft 102 of the sieve barrel can control the rotation of the rotary sieve barrel 106 and push aggregate in the sieve barrel out of the sieve barrel. The PLC integrated control system 103 is used for controlling the microwave generator 115 and the waveguide 113, and realizing automatic control of preset operation parameters of parameters such as microwave power, irradiation time, rotating angular velocity of the hollow sieve barrel, rotating time and the like in the heating separation box.
As shown in fig. 2, the electric revolving door 107 is schematically shown in a closed state, a 30 ° rotation state, a 120 ° rotation state, and an open state.
The outlet of the motorized revolving door 107 is butted against an aggregate receiving baffle 110 provided on an aggregate outlet 112. The aggregates obtained after the inside of the sieve barrel is subjected to rotary separation pass through the aggregate receiving baffle 110, then leave the box body from the aggregate outlet 112, and enter the stirring and sieving box 2 through the aggregate conveying belt 116 for further separation.
Directly below the rotating screen drum 106 is an asphalt transfer plate 108 with a certain slope, below which a first vibrator 109 is arranged. The separated asphaltenes fall onto an asphalt conveying plate 108, and then leave the box body from an asphalt discharge port 111, and enter the asphalt recycling device 3 through an asphalt conveying belt 117.
A feeding port 202 is arranged on the side wall of the stirring and screening box 2 and is connected with the tail end of the aggregate conveyor belt 116. Be provided with the pan feeding mouth 202 that links to each other with aggregate conveyer belt 116 end at the lateral wall of stirring screening case 2, pan feeding mouth 202 butt joint a slope baffle 207, the end butt joint that has at slope baffle 207 has sliding baffle 208 for the motion of control slope baffle, sliding baffle 208 is connected on the lateral wall of stirring screening case 2, after a batch aggregate is accomplished to wash and is stirred the operation, the baffle is opened, through the removal that removes drive baffle, make the aggregate after the operation is accomplished in the roll-type stirring intracavity can get into the vibration screening intracavity.
The stirring and screening box 2 is divided into an upper part and a lower part by an inclined baffle 207 and a sliding clapboard 208, wherein the upper part is a roller stirring cavity, and the lower part is a vibrating and screening cavity.
The rotary roller 206 is arranged in the roller stirring cavity, the motor 201 outside the stirring screening box 2 works to drive the rotary roller 206 to rotate, the roller rod 205 is arranged on the surface of the rotary roller 206, and the length of the roller rod 205 is sequentially increased from left to right along the axial direction of the rotary roller so as to adapt to the inclination of the inclined baffle. The surface of the roller rod 205 is in a rough sawtooth shape, which is beneficial to better removing the asphaltene attached to the surface of the aggregate and can effectively improve the working efficiency of removing impurities.
High-pressure water spray heads 204 are arranged on the upper portion and the side portion of the cavity of the roller stirring cavity, aggregate inside the cavity is washed and cooled at high pressure, the effect of removing impurities is enhanced, and meanwhile, the roller rods 205 are washed by high-pressure water, so that the service life of the roller rods can be prolonged.
In the vibration screening chamber, be equipped with the vibration sieve 209 of slope setting, the aperture size of sieve is 2.36mm, and the effect is separated bituminous mixture and coarse aggregate wherein, screens off the pitch residue on aggregate surface. The lower part of the screening deck is provided with a second vibrator 211 to enhance the screening efficiency. On the top of the vibrating screen plate 209, there is a second air blower 210 for aeration drying of the aggregates for accelerating the air flow on the surface of the aggregates and accelerating the drying process of the aggregates. The aggregate slides through the sieve plate that the slope was placed, leaves stirring screening case 2 through discharge gate 203.
The water of stirring screening case passes through vibrating screen 209 sieve mesh and gets into the water filtering ponds of lower part and gathers here, and the box outside is provided with circulating water system, in order to realize water cyclic utilization, sets up water pumping device's water circulating device water inlet 212 in stirring screening bottom of the case cistern, sets up in water filtering ponds department, and mouth of pipe department is provided with the multilayer filter screen to this filters the impurity of filtering moisture in the water filtering ponds, reduces its harm to water pumping system, reduces equipment failure rate. The pressurizing device 214, the water pump 213, the water tank 215 and the like are positioned outside the screening tank. The water is pumped into an external water tank 215 to be stored through pressurization of a water pump 213, a water tank water inlet 216 is arranged at the upper part of the water tank so as to supplement the water in the water tank, a pipeline at the lower part of the water tank is connected to a water pressurization device 214, and the water is pressurized and then ejected out through a high-pressure water spray head 204, so that the water is recycled, the water resource is saved, the environment is protected, and the cost is saved. The high-pressure spraying device is beneficial to better removing the asphaltene attached to the surface of the aggregate, and simultaneously washes the roller rods 205, so that the service life and the service efficiency of the roller rods are improved.
As shown in fig. 3, the working process of the present invention is as follows: after the waste asphalt mixture enters a rotary screen barrel of the heating separation box, the temperature of the mixture is raised through microwave irradiation of a microwave generator, asphaltenes are gradually softened and gradually changed from a solid state to a flow state, and the asphaltenes are enabled to leave the inside of the screen barrel along with other mixtures in the mixture under the action of centrifugal force generated by high-speed rotation of the rotary screen barrel, so that coarse aggregates are left inside the rotary screen barrel, the aggregates are separated from other substances, and the aggregates are not damaged. And then, the asphalt aggregate enters a roller stirring cavity of the stirring screening box through an aggregate conveyor belt, water of a high-pressure water spray head is sprayed on the surface of the aggregate, a large temperature gradient is formed instantly after the heated material is soaked in water and cooled, the separation of the asphalt aggregate and the mortar is further promoted, and the high-pressure water also has a certain washing effect on the asphalt adhered to the surface of the aggregate. In addition, under the friction action of the roller rods with rough and serrated surfaces of the rotary roller, the asphalt aggregate is cleaned quickly from asphalt adhered to the surfaces of the asphalt aggregate, and the cleaning efficiency is improved. And then the asphalt aggregate enters a vibrating screening cavity, asphaltene impurities are separated under the vibration action, and the asphalt aggregate leaves the box body through a discharge port, so that the high-quality asphalt mixture aggregate is obtained.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims (9)

1. A high-quality asphalt mixture coarse aggregate regenerating device based on microwave technology is characterized by comprising a heating separation box (1), a stirring screening box (2) and an asphalt recycling box (3);
a rotary screen barrel (106) is arranged in the heating separation box (1), electric rotary doors (107) are arranged at two ends of the rotary screen barrel (106), a feeding hole (105) and an aggregate outlet (112) which correspond to the electric rotary doors (107) are respectively formed in the side wall of the heating separation box (1), and the aggregate outlet (112) is communicated with the stirring screening box (2) through an aggregate conveying belt (116);
the device also comprises a PLC control system (103), a microwave generator (115), a waveguide (113) and a thermocouple (114) which are arranged on the heating separation box (1), wherein the PLC control system (103) is connected with the rotary sieve barrel (106), the microwave generator (115) and the waveguide (113); the lower part of the box body is provided with an asphalt conveying plate (108) which is distributed in an inclined way and is communicated with an asphalt conveying belt (117) through an asphalt outlet (111) to be connected with an asphalt recycling box (3);
an inclined baffle (207) butted with the aggregate conveying belt (116) is arranged in the stirring screening box (2), the stirring screening box (2) is divided into a roller stirring cavity and a vibrating screening cavity, a rotary roller (206) is arranged in the roller stirring cavity, and the stirring screening box further comprises a high-pressure spraying system arranged on the stirring screening box (2); the vibrating screen cavity is provided with a vibrating screen plate (209) which is obliquely arranged, and the lower part of the vibrating screen plate (209) is communicated with a discharge hole (203) of the stirring screening box.
2. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that the rotary screen barrel (106) is a stainless steel hollow cylinder, screen holes are fully distributed on the side wall of the rotary screen barrel, and the rotary screen barrel (106) is connected with an output shaft of a motor to rotate through a central rotating shaft (102) of the rotary screen barrel.
3. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that the PLC control system (103) is connected with a sieve barrel central rotating shaft (102) and an electric rotating door (107); magnetic alignment devices (104) are respectively arranged on the electric rotating door (107) and the side wall of the heating separation box (1); an electric telescopic rod is connected on the central rotating shaft (102) of the sieve barrel.
4. The high-quality asphalt mixture coarse aggregate regenerating device based on the microwave technology as claimed in claim 1, characterized in that the first vibrator (109) is arranged below the asphalt conveying plate (108).
5. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that an aggregate receiving baffle plate (110) is arranged at the joint of the aggregate outlet (112) and the outlet of the electric revolving door (107).
6. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that a feeding port (202) connected with the tail end of an aggregate conveying belt (116) is arranged on the side wall of the stirring and screening box (2), the feeding port (202) is in butt joint with an inclined baffle (207), and the inclined baffle (207) is connected with a sliding partition plate (208) on the side wall of the stirring and screening box (2).
7. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that a plurality of roller rods (205) are arranged on the surface of the rotating roller (206), the lengths of the roller rods (205) are sequentially increased from left to right along the axial direction of the rotating roller (206), the rotating surface of the rotating roller (206) formed by the roller rods (205) is consistent with the inclination of the inclined baffle plate (207), and the surface of the roller rods (205) is in a sawtooth shape.
8. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that the vibrating screen plate (209) is opposite to the inclined direction of the inclined baffle plate (207), a second vibrator (211) is arranged at the lower part of the vibrating screen plate, and pores are arranged on the vibrating screen plate (209); and a second air blower (210) butted with the upper part of the vibrating screen plate (209) is arranged on the side wall of the vibrating screen cavity.
9. The microwave technology-based high-quality asphalt mixture coarse aggregate regeneration device is characterized in that the high-pressure spraying system comprises high-pressure water spraying heads (204) arranged at the top and the side of the stirring screening box (2), the high-pressure water spraying heads (204) are communicated with a circulating water system, the circulating water system is communicated with a water inlet (212) of a water circulating device at the bottom of the vibrating screening cavity through a circulating water pipe, a water tank (215) and a pressurizing device (214) are sequentially communicated with the circulating water pipe through a water pump (213), and the pressurizing device (214) is communicated with the high-pressure water spraying heads (204).
CN202020545730.0U 2020-04-14 2020-04-14 High-quality asphalt mixture coarse aggregate regenerating unit based on microwave technology Active CN212052193U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112728892A (en) * 2020-12-31 2021-04-30 常州市昇源干燥设备科技有限公司 Automatic control by temperature change matrimony vine stoving room of segmentation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112728892A (en) * 2020-12-31 2021-04-30 常州市昇源干燥设备科技有限公司 Automatic control by temperature change matrimony vine stoving room of segmentation

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