CN214089338U - Reclaimed material regenerant adding system of asphalt mixture stirring equipment - Google Patents

Reclaimed material regenerant adding system of asphalt mixture stirring equipment Download PDF

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Publication number
CN214089338U
CN214089338U CN202022747956.1U CN202022747956U CN214089338U CN 214089338 U CN214089338 U CN 214089338U CN 202022747956 U CN202022747956 U CN 202022747956U CN 214089338 U CN214089338 U CN 214089338U
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regenerant
conveying
pipeline
controller
metering
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CN202022747956.1U
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郭国川
周伟
刘新超
朱冰伟
胡亚男
许翰超
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Langfang D&g Machinery Technology Co ltd
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Langfang D&g Machinery Technology Co ltd
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Abstract

The application provides a reclaimed material regenerant adding system of asphalt mixture stirring equipment, which comprises a regenerant supply device, a regenerant conveying and metering device, a spraying device and a controller; the regenerant supply device comprises a storage tank, a supply pipeline and a supply pump; the regenerant conveying and metering device comprises a stirring tank and a conveying and metering pipeline; the top of the stirring tank is provided with an additive port, and the inside of the stirring tank is provided with a stirrer and a second radar liquid level sensor; the discharge port of the stirring tank is connected with a spraying device through a conveying and metering pipeline; the conveying and metering pipeline is sequentially provided with a filter, a high-pressure diaphragm pump and a flow sensor; the spraying device is arranged in the reclaimed material scale and comprises a spraying pipeline and a nozzle. The method is convenient to operate, has a wide application range, and can be suitable for adding the regenerants and the modifiers with different viscosities; the problem of difficult conveying of the regenerant is solved; the control precision is high, and the accurate addition of the regenerant can be ensured, so that the recovery ratio of the reclaimed materials is improved.

Description

Reclaimed material regenerant adding system of asphalt mixture stirring equipment
Technical Field
The application relates to the technical field of asphalt mixture recovery, in particular to a reclaimed material regenerant adding system of an asphalt mixture stirring device.
Background
At present, more and more asphalt pavements gradually enter a maintenance period or a major repair period, a large amount of waste asphalt reclaimed materials are generated in the pavement maintenance process, and the materials are randomly disposed or discarded to pollute the environment; but is a valuable raw material for highway construction. The construction method has the advantages that the construction method is reasonable, the construction raw material cost can be greatly saved, the material waste and the environmental pollution are effectively avoided, the basic national policy of the sustainable development of the highway construction in China is met, and the economic and social significance is very important.
When the asphalt pavement material is recycled, the asphalt is difficult to separate out independently, so the regeneration of the asphalt can only be completed in the regeneration process of the mixture. Generally, when the addition ratio of the reclaimed materials is more than 25%, the aged asphalt needs to be regenerated by using a regenerant so as to obtain high-quality regenerated asphalt concrete.
However, at present, the asphalt recycling agent has many kinds, the liquid viscosity difference is large, the asphalt recycling agent is easy to precipitate, and the material transportation is difficult to a certain extent, so that a proper recycling agent adding system is needed to ensure the accurate addition and use of the recycling agent, thereby improving the recycling proportion of the recycled materials.
Disclosure of Invention
The application aims at the above problems and provides a reclaimed material regenerant adding system of an asphalt mixture stirring device.
The application provides a reclaimed material regenerant adding system of asphalt mixture stirring equipment, which comprises a regenerant supply device, a regenerant conveying and metering device, a spraying device and a controller;
the regenerant supply device comprises a storage tank, a supply pipeline and a supply pump arranged on the supply pipeline;
the regenerant conveying and metering device comprises a stirring tank and a conveying and metering pipeline; the top of the stirring tank is provided with an additive port, and a stirrer and a second radar liquid level sensor are arranged inside the stirring tank; the upper part of the stirring tank is provided with a feeding hole, and the lower part of the stirring tank is provided with a discharging hole; the feed inlet is connected with the storage tank through the supply pipeline; the discharge port is connected with the spraying device through the conveying and metering pipeline; the conveying and metering pipeline is sequentially provided with a filter, a high-pressure diaphragm pump and a flow sensor;
the spraying device is arranged in the reclaimed material scale and comprises a spraying pipeline connected with the conveying metering pipeline and a plurality of nozzles distributed on the spraying pipeline;
the feed pump, the high-pressure diaphragm pump, the second radar liquid level sensor and the flow sensor are respectively connected with the controller; the controller is configured to control the supply pump to be turned on or off according to a liquid level signal detected by the second radar liquid level sensor.
Further, a rock wool heat-insulating layer is arranged on the outer side wall of the storage tank, and a first temperature sensor is arranged on the inner side wall of the storage tank; the bottom of the storage tank is provided with a first heating device; the first temperature sensor and the first heating device are respectively connected with the controller; the controller is configured to control the on-off of the first heating device according to the temperature signal detected by the first temperature sensor.
Further, a second temperature sensor is arranged inside the stirring tank, and a second heating device is arranged at the bottom of the stirring tank; the second temperature sensor and the second heating device are respectively connected with the controller; the controller is configured to control the on-off of the second heating device according to the temperature signal detected by the second temperature sensor.
Further, a third heating device is wound on the supply pipeline; the controller is configured to control opening and closing of the third heating device.
Further, a pneumatic three-way valve is also arranged on the conveying and metering pipeline; the inlet of the pneumatic three-way valve is connected with the output end of the high-pressure diaphragm pump, the first outlet is connected with the input end of the flow sensor, and the second outlet is connected with the input end of the high-pressure diaphragm pump; a safety valve is connected in parallel between the inlet and the second outlet of the pneumatic three-way valve; and the overflow outlet of the safety valve is connected with the second outlet of the pneumatic three-way valve.
Furthermore, the lower part of the stirring tank is also provided with a sewage draining outlet.
Compared with the prior art, the beneficial effect of this application: the reclaimed material regenerant adding system of the asphalt mixture stirring equipment is convenient to operate, has a wide application range, and can be suitable for adding regenerants and modifiers with different viscosities, so that different asphalt mixtures are recovered; the viscosity of the regenerant is high at normal temperature, and the regenerants with different viscosities can be heated to different temperatures through the first heating device, the second heating device and the third heating device to ensure the fluidity of the regenerant, so that the problem of difficult transportation of the regenerant is solved; the system has higher control precision by arranging the first temperature sensor, the second temperature sensor and the flow sensor which are connected with the controller, particularly the arrangement of the flow sensor can ensure the metering precision of the regenerant and the accurate addition of the regenerant, thereby improving the recovery proportion of the reclaimed materials; through setting up holding vessel, supply line, charge pump and second radar level sensor, can in time supply regenerant for the agitator tank to can ensure going on in succession of bituminous mixture recovery work.
Drawings
Fig. 1 is a schematic structural diagram of a reclaimed material regenerant addition system of an asphalt mixing plant according to an embodiment of the present application.
The text labels in the figures are represented as:
1. a storage tank; 2. a first radar level sensor; 3. a first heating device; 4. a first temperature sensor; 5. a first shut-off valve; 6. a supply pump; 7. a check valve; 8. a third heating device; 9. a supply line; 10. a stirring tank; 11. a second radar level sensor; 12. a stirrer; 13. an additive port; 14. a sewage draining outlet; 15. a second heating device; 16. a second temperature sensor; 17. a second stop valve; 18. a filter; 19. a high pressure diaphragm pump; 20. a safety valve; 21. a pneumatic three-way valve; 22. a flow sensor; 23. a spray pipe; 24. a nozzle; 25. a discharge door; 26. and (5) a reclaimed material balance.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
As shown in fig. 1, the embodiment provides a reclaimed material regenerant adding system for an asphalt mixing plant, which includes a regenerant supply device, a regenerant delivery metering device, a spraying device, and a controller (not shown).
The regenerant supply device is used for supplying regenerants to the regenerant conveying and metering device and comprises a storage tank 1, wherein the storage tank 1 is used for storing the regenerants, the top of the storage tank 1 is provided with a feed inlet for adding the regenerants, the lower part of the storage tank is provided with a discharge outlet, the discharge outlet is connected with a supply pipeline 9, and the supply pipeline 9 is sequentially provided with a first stop valve 5, a supply pump 6 and a check valve 7; a third heating device 8 is wound on the supply pipeline 9; the third heating device 8 is connected with the controller, the opening and closing of the third heating device 8 are controlled through the controller, and the third heating device 8 is used for heating and heat preservation; the outer side wall of the storage tank 1 is provided with a rock wool heat-insulating layer, and the inner side wall is provided with a first temperature sensor 4; the bottom of the storage tank 1 is provided with a first heating device 3 for heating the regenerant, and the regenerants with different viscosities are heated to ensure the flowability of the regenerant; the first temperature sensor 4 and the first heating device 3 are respectively connected with a controller; the controller is configured to control the on/off of the first heating device 3 according to the temperature signal detected by the first temperature sensor 4, and set different heating temperatures for the first heating device 3 according to the regenerants with different viscosities; still be equipped with first radar level sensor 2 in the holding vessel 1, first radar level sensor 2 is connected with the controller for liquid level height signal transmission in the holding vessel 1 with real-time detection to the controller.
The regenerant conveying and metering device comprises a stirring tank 10 and a conveying and metering pipeline; a feed inlet is formed in the upper part of the stirring tank 10, a discharge outlet is formed in the lower part of the stirring tank, and the feed inlet is connected with one end, far away from the storage tank 1, of the supply pipeline 9; an additive port 13 for adding a modifier is formed in the top of the stirring tank 10, a stirrer 12 for uniformly mixing a regenerant and the modifier is arranged in the stirring tank, and a second radar liquid level sensor 11 for detecting the liquid level in the stirring tank 10 in real time is arranged in the stirring tank; the second radar liquid level sensor 11 is connected with a controller, and the controller is configured to control the supply pump 6 to be started or stopped according to a liquid level signal detected by the second radar liquid level sensor 11; a second temperature sensor 16 is also arranged in the stirring tank 10, and a second heating device 15 is arranged at the bottom of the stirring tank; the second temperature sensor 16 and the second heating device 15 are respectively connected with the controller; the controller is configured to control the on/off of the second heating device 15 according to the temperature signal detected by the second temperature sensor 16; the discharge port of the stirring tank 10 is connected with the spraying device through the conveying metering pipeline; the conveying and metering pipeline is sequentially provided with a second stop valve 17, a filter 18, a high-pressure diaphragm pump 19 and a flow sensor 22; the filter 18 is used to filter out impurities mixed in the liquid to prevent damage to the high-pressure diaphragm pump 19. The lower part of the stirring tank 10 is also provided with a sewage draining outlet 14, the sewage draining outlet 14 is connected to a sewage draining pipeline, and the sewage draining outlet 14 is used for draining the liquid which is not used up in the stirring tank 10.
The spraying device is arranged at the top in the reclaimed material scale 26 and comprises a spraying pipeline 23 connected with the conveying metering pipeline and a plurality of nozzles 24 distributed on the spraying pipeline 23, and liquid which is uniformly stirred and mixed in the stirring tank 10 enters the spraying pipeline 23 through the conveying metering pipeline and is sprayed out through the nozzles 24. The reclaimed material balance 26 is provided with a discharge door 25 for discharging the asphalt mixture, and an electromagnetic valve for controlling the opening and closing of the discharge door 25 is connected with the controller.
Preferably, a pneumatic three-way valve 21 is further arranged on the conveying and metering pipeline; the pneumatic three-way valve 21 comprises an inlet, a first outlet and a second outlet, the inlet of the pneumatic three-way valve 21 is connected with the output end of the high-pressure diaphragm pump 19, the first outlet is connected with the input end of the flow sensor 22, and the second outlet is connected with the input end of the high-pressure diaphragm pump 19; a safety valve 20 is connected in parallel between the inlet and the second outlet of the pneumatic three-way valve 21; the overflow outlet of the safety valve 20 is connected with the second outlet of the pneumatic three-way valve 21; the safety valve 20 and the pneumatic three-way valve 21 are arranged to play a safety protection role.
When the device is used, when the controller detects a signal that the emptying door 25 opens emptying, the first outlet of the pneumatic three-way valve 21 is controlled to be opened, liquid in the stirring tank 10 enters the spraying pipeline 23 under the action of the high-pressure diaphragm pump 19 and is sprayed out through the nozzle 24, meanwhile, the flow sensor 22 detects the flow of the liquid sprayed into the reclaimed material scale 26 in real time and sends the flow signal to the controller in real time, when the controller judges that the flow of the liquid sprayed into the reclaimed material scale 26 reaches a previous set value, the first outlet of the pneumatic three-way valve 21 is controlled to be closed, the second outlet is opened, and therefore the liquid circulates between the high-pressure diaphragm pump 19 and the pneumatic three-way valve 21, the high-pressure diaphragm pump 19 does not need to be frequently opened and closed, and the high-pressure diaphragm pump 19 is prevented from being damaged.
The reclaimed material regenerant adding system of the asphalt mixture stirring equipment is convenient to operate, wide in application range and suitable for adding regenerants and modifiers with different viscosities, so that different asphalt mixtures are recovered; the viscosity of the regenerant is high at normal temperature, and the regenerants with different viscosities can be heated to different temperatures through the first heating device, the second heating device and the third heating device to ensure the fluidity of the regenerant, so that the problem of difficult transportation of the regenerant is solved; the system has higher control precision by arranging the first temperature sensor, the second temperature sensor and the flow sensor which are connected with the controller, particularly the arrangement of the flow sensor can ensure the metering precision of the regenerant and the accurate addition of the regenerant, thereby improving the recovery proportion of the reclaimed materials; by arranging the storage tank, the supply pipeline, the supply pump and the second radar liquid level sensor, the regenerant can be supplemented to the stirring tank in time, so that the continuous operation of the asphalt mixture recovery work can be ensured; through setting up relief valve and pneumatic three-way valve, played safety protection's effect.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.

Claims (6)

1. A reclaimed material regenerant adding system of asphalt mixture stirring equipment is characterized by comprising a regenerant supply device, a regenerant conveying and metering device, a spraying device and a controller;
the regenerant supply device comprises a storage tank (1), a supply pipeline (9) and a supply pump (6) arranged on the supply pipeline (9);
the regenerant conveying and metering device comprises a stirring tank (10) and a conveying and metering pipeline; an additive port (13) is formed in the top of the stirring tank (10), and a stirrer (12) and a second radar liquid level sensor (11) are arranged in the stirring tank; the upper part of the stirring tank (10) is provided with a feeding hole, and the lower part of the stirring tank is provided with a discharging hole; the feed inlet is connected with the storage tank (1) through the supply pipeline (9); the discharge port is connected with the spraying device through the conveying and metering pipeline; the conveying and metering pipeline is sequentially provided with a filter (18), a high-pressure diaphragm pump (19) and a flow sensor (22);
the spraying device is arranged in a reclaimed material scale (26) and comprises a spraying pipeline (23) connected with the conveying metering pipeline and a plurality of nozzles (24) distributed on the spraying pipeline (23);
the feed pump (6), the high-pressure diaphragm pump (19), the second radar level sensor (11) and the flow sensor (22) are respectively connected with the controller; the controller is configured to control the supply pump (6) to be started or stopped according to a liquid level signal detected by the second radar liquid level sensor (11).
2. The reclaimed material regenerant addition system of the asphalt mixture mixing plant according to claim 1, wherein a rock wool heat-insulating layer is arranged on the outer side wall of the storage tank (1), and a first temperature sensor (4) is arranged on the inner side wall; the bottom of the storage tank (1) is provided with a first heating device (3); the first temperature sensor (4) and the first heating device (3) are respectively connected with the controller; the controller is configured to control the on-off of the first heating device (3) according to the temperature signal detected by the first temperature sensor (4).
3. The reclaimed material regenerant addition system of an asphalt mixing plant according to claim 1, wherein a second temperature sensor (16) is arranged inside the mixing tank (10), and a second heating device (15) is arranged at the bottom of the mixing tank; the second temperature sensor (16) and the second heating device (15) are respectively connected with the controller; the controller is configured to control the on and off of the second heating device (15) according to the temperature signal detected by the second temperature sensor (16).
4. The reclaimed material regenerant addition system of an asphalt mixing plant according to claim 1, wherein a third heating device (8) is wound on the supply line (9); the controller is configured to control the opening and closing of the third heating device (8).
5. The reclaimed material regenerant addition system of the asphalt mixing plant according to claim 1, wherein a pneumatic three-way valve (21) is further arranged on the conveying and metering pipeline; the inlet of the pneumatic three-way valve (21) is connected with the output end of the high-pressure diaphragm pump (19), the first outlet is connected with the input end of the flow sensor (22), and the second outlet is connected with the input end of the high-pressure diaphragm pump (19); a safety valve (20) is connected in parallel between the inlet and the second outlet of the pneumatic three-way valve (21); the overflow outlet of the safety valve (20) is connected with the second outlet of the pneumatic three-way valve (21).
6. The reclaimed material regenerant addition system of an asphalt mixing plant according to claim 1, wherein a drain outlet (14) is further provided at the lower part of the mixing tank (10).
CN202022747956.1U 2020-11-24 2020-11-24 Reclaimed material regenerant adding system of asphalt mixture stirring equipment Active CN214089338U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022747956.1U CN214089338U (en) 2020-11-24 2020-11-24 Reclaimed material regenerant adding system of asphalt mixture stirring equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022747956.1U CN214089338U (en) 2020-11-24 2020-11-24 Reclaimed material regenerant adding system of asphalt mixture stirring equipment

Publications (1)

Publication Number Publication Date
CN214089338U true CN214089338U (en) 2021-08-31

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ID=77452301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022747956.1U Active CN214089338U (en) 2020-11-24 2020-11-24 Reclaimed material regenerant adding system of asphalt mixture stirring equipment

Country Status (1)

Country Link
CN (1) CN214089338U (en)

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