CN207567607U - Mobile Plant cold regenerative machine - Google Patents

Abstract

The utility model relates to a mobile plant-mixed cold recycling machine, which is characterized in that the vehicle frame is towed by a tractor, and a power device, a hydraulic system, a water tank and a fuel tank are arranged at the front end of the vehicle frame. The silo is above the aggregate conveying device, and the cement conveying device, stirring device and unloading belt conveyor are sequentially arranged on the vehicle frame. The foamed asphalt adding device is above the stirring device, and the emulsified asphalt nozzle and mixing water nozzle are at the feeding end. Aggregate conveying, cement lifting and cement horizontal conveying devices and unloading belt conveyor are driven by hydraulic motors to complete batching and mixed material conveying. New and old aggregates, cement, asphalt and water enter the mixing device through the conveying device in proportion, and the evenly mixed asphalt mixture is output by the discharge belt conveyor. It has the characteristics of compact structure, strong maneuverability, small turning radius, convenient and flexible transition, etc. It is suitable for construction operations with scattered construction sites and small-scale recycled materials, and solves the problem of using recycled old materials to produce asphalt mixture on site.

Description

Mobile factory mixed cold recycling machine

technical field

The utility model belongs to the field of highway engineering machinery, and mainly relates to a mobile factory-mixed cold recycling machine which can produce asphalt mixture by using recycled old materials at the operation site.

Background technique

With the rapid development of highway construction in our country and the need for renovation and reconstruction of a large number of asphalt pavements of high-grade highways, the recycling of old asphalt pavement materials has been re-emphasized and widely concerned. At present, only in major and medium maintenance projects of trunk roads in my country, more than 160 million tons of asphalt pavement waste materials are produced every year, and the recycling rate of pavement materials is less than 30%, which is far lower than the utilization rate of more than 90% in developed countries. The Ministry of Transport also clearly stated that by 2020, the recycling rate of old road materials in the country will reach more than 90%. However, the key to improving the recycling rate of old materials on highway pavement is to improve the level of asphalt mixing equipment. Most of the currently used asphalt mixing equipment is intermittent large-scale fixed equipment. The main problems are incoherent discharge and low production efficiency. In addition, the shortcomings of large models, large floor space, and time-consuming and labor-intensive migration make it suitable for The performance is limited, which hinders the improvement of the recycling rate of old road pavement materials.

Contents of the invention

The purpose of this utility model is to provide a mobile factory-mixed cold recycling machine, which is suitable for the lower layer and the base layer and the sub-base layer of the asphalt pavement of the expressway and the first and second grade roads, and the middle and lower layers of the asphalt pavement of the third and fourth grade roads. The production of layered asphalt mixture has the characteristics of automatic transition, automatic continuous discharge, and high integration.

The utility model is realized through the following technical solutions, including a tractor, a vehicle frame, a power unit, a hydraulic system, a batching conveying device and a stirring device; the power unit, a water tank and a fuel tank are arranged at the front end of the vehicle frame, and the features are:

Aggregate conveying device, stirring device and unloading belt conveyor are arranged on the vehicle frame in sequence; the discharge end of the aggregate conveying device is located at the receiving port of the stirring device; above the receiving end of the aggregate conveying device, a silo is arranged.

The cement adding device is located on one side of the frame, including the cement lifting device and the cement horizontal conveying device. The material outlet of the conveying device is connected with the material receiving port of the stirring device.

The silo is installed on the frame through outriggers. The silo body is divided into two silos: a recycled silo and a new aggregate silo. Each silo is equipped with a flip-up silo screen through hinges. , the silo screen is connected to the silo body through the overturning oil cylinder; a vibrator is installed on the outer wall of the silo; a strip-shaped bottom is respectively arranged at the place where the bottom of the two silos coincides with the belt of the aggregate conveying device. There is a silo gate at the end of the discharge port; the two silo gates are respectively connected to the electric push rods that control the opening of the gate, and there is a scale showing the opening size nearby; on the two silo gates, respectively set There are material level control components; the proximity switch is installed on the bracket of the silo gate, the baffle and the material level tongue are installed on the bracket through the rotating shaft, and the fixed pin on the material level tongue is located in the arc groove on the baffle.

A foaming asphalt adding device is installed above the stirring device, and an emulsified asphalt nozzle and a mixing water nozzle are arranged at the feeding end of the stirring device. The road is connected to the water pump.

There are two stirring shafts in the stirring device, which are respectively driven and rotated by hydraulic motors; a discharge belt conveyor is arranged at the discharge port of the stirring device.

Aggregate conveying device, cement lifting device, cement horizontal conveying device and discharge belt conveyor are driven by hydraulic motor, which is connected with hydraulic system.

Flow meters are installed on the conveying pipelines of mixing water, emulsified asphalt and foamed asphalt; revolution sensors are installed on the hydraulic motors of the aggregate conveying device, cement lifting device, cement horizontal conveying device and discharge belt conveyor ; The aggregate conveying device and the cement horizontal conveying device are provided with load cells.

The control box of the automatic control system is set on the frame, the material level proximity switch, the water flow meter, the emulsified asphalt flow meter, the foamed asphalt flow meter, the motor revolution sensor of the cement lifting device, the cement horizontal conveying motor revolution sensor, the cement scale The weight sensor, aggregate conveying motor rotation speed sensor, aggregate weighing sensor and discharge belt conveyor motor rotation number sensor are all connected to the input end of the control module, the output end of the control module is connected to the material shortage alarm device, and each ingredient conveying motor The control device is connected to control the motor speed of the water pump, emulsified asphalt pump, foamed asphalt pump, cement lifting device, cement horizontal conveying device, aggregate conveying device and discharge belt conveyor, and various ingredients are controlled according to the set ingredient ratio requirements. delivery.

The connection between the discharge port and the material receiving port of the cement lifting device, the cement horizontal conveying device and the stirring device is connected by a soft connection. The outriggers of the frame include hydraulic outriggers and mechanical outriggers. The hydraulic outriggers are equipped with independent power units, and there is no need to start the engine during operation. The cement lifting device and the cement horizontal conveying device are auger-type conveying devices; the aggregate conveying device is a belt conveyor. The electric push rod of the silo gate is connected with the control system to control the opening height of the gate and accurately adjust the conveying volume of the aggregate.

When the mobile factory-mixed cold recycling machine is working, it is pulled to the job site by a tractor, and the frame is fixed by hydraulic outriggers and mechanical outriggers. The water inlet of the water tank is connected to the water truck, the feeding port of the cement lifting device is connected to the cement silo, the screw pump feeding port of the emulsified asphalt adding device is connected to the emulsified asphalt tanker, the asphalt pump inlet of the foamed asphalt adding device is connected to the hot asphalt tank connect. Start the power unit, start the hydraulic system, start each ingredient conveying device, and input various ingredients into the mixing device according to the proportion required by the design. The mixing device fully mixes the collected recycled materials, new aggregates, foamed asphalt or emulsified asphalt, mixing water, and cement, and sends them to the discharge port of the mixing device after mixing evenly. The discharge port is located on the discharge belt conveyor the receiving end. The stirring device is driven by two hydraulic motors to rotate the stirring shaft, stirring and pushing the mixture to the discharge port. The discharge belt conveyor conveys the mixed material to the dump truck box under the discharge end, and transports it to the paving site for paving to complete the production and use of recycled materials.

The beneficial effect of the utility model is that the mobile factory-mixed cold recycling machine mixes recycled old materials, new aggregates, cement, asphalt and water at the working site to produce new asphalt mixture. The dynamic and precise control of the mixing ratio is realized, and the old asphalt mixture can be fully recycled. The cost of raw materials is reduced, the production efficiency is improved, and no environmental pollution is generated. All are driven by hydraulic pressure, and the batching and spraying system adopts variable closed-loop control, which makes the operation more stable and accurate. Continuous forced mixing technology is adopted to mix evenly so that all the recycled material particles are fully coated with the added binder, and the most economical and effective recycled paving material production can be realized by easy setting. The device has its own engine to provide the power required for all functions. It has the characteristics of small size, compact structure, strong maneuverability, small turning radius, convenient and flexible transition, etc. It is suitable for construction operations with scattered construction sites and small-scale recycled materials.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural diagram of the silo part;

Fig. 3 is the right view of Fig. 2;

Fig. 4 is a partial enlarged view of the I place of the material level control assembly in Fig. 2;

Figure 5 is a structural block diagram of the control part.

In the figure: 1 is the frame, 2 is the power unit, 3 is the hydraulic system, 4 is the water tank, 5 is the fuel tank, 6 is the silo, 7 is the aggregate conveying device, 8 is the cement lifting device, 9 is the cement horizontal conveying device, 10 is the mixing device, 11 is the unloading belt conveyor, 12 is the control box of the automatic control system, 13 is the foaming asphalt adding device, 14 is the emulsified asphalt nozzle, 15 is the mixing water nozzle, 16 is the emulsified asphalt adding device , 17 is the frame leg, 18 is the water pump, 19 is the tractor, 20 is the folding page, 21 is the silo screen, 22 is the vibrator, 23 is the silo body, 24 is the material level control component, 25 is Screen overturning oil cylinder, 26 is silo gate, 27 is electric push rod, 28 is scale, 29 is silo outrigger, 30 is proximity switch, 31 is baffle, 32 is rotating shaft, 33 is fixed pin, 34 is Material level tongue plate, 35 are lower discharging openings, and 1 is a local mark.

Detailed ways

Below in conjunction with accompanying drawing, illustrate the embodiment of the present utility model, comprise tractor 19, vehicle frame 1, power unit 2, hydraulic system 3, batching delivery device and stirring device 10. The power unit 2, the water tank 4 and the fuel tank 5 are arranged at the front end of the vehicle frame 1.

Aggregate conveying device 7, stirring device 10 and unloading belt conveyor 11 are sequentially arranged on the vehicle frame 1; the discharge end of aggregate conveying device 7 is located at the receiving port of stirring device 10; Above the end, there is a silo 6;

The silo 6 is installed on the vehicle frame 1 through the legs 29. The silo body 23 is divided into two silos, a regenerated silo and a new aggregate silo, and each silo is equipped with a foldable hinge 20 on the top of each silo. The silo screen 21 net, the silo screen 21 is connected with the silo body 23 through the overturning cylinder 25; a vibrator 22 is installed on the outer wall of the silo; The places where the belts coincide are respectively provided with strip-shaped lower outlets 35, and the ends of the outlets are provided with silo gates 26; the two silo gates are respectively connected with the electric push rod 27 that controls the opening of the gates, and there is a display opening nearby. The size of the scale 28; on the two bin gates 26, there are respectively material level control components 24; the proximity switch 30 is installed on the bracket of the bin gate 26, and the baffle plate 31 and the material level tongue plate 34 are installed on the bracket through the rotating shaft 32 Above, the fixed pin 33 on the level tongue 34 is located in the arc groove on the baffle 31 .

The cement adding device is on the side of the vehicle frame, including a cement lifting device 8 and a cement horizontal conveying device 9, the receiving port of the cement lifting device 8 is connected with the external cement silo, and the discharging port is connected with the receiving port of the cement horizontal conveying device 9 Connection, the discharge port of the cement horizontal conveying device 9 is connected with the receiving port of the stirring device 10 . The connection between the above discharge port and the material receiving port is connected by a soft connection. A foaming asphalt adding device 13 is arranged above the stirring device 10, and an emulsified asphalt nozzle 14 and a mixing water nozzle 15 are arranged at the feed end of the stirring device 10, and the emulsified asphalt nozzle 14 is connected with the emulsified asphalt adding device 16 through a pipeline , the mixing water nozzle 15 is connected with the water pump 18 through a pipeline. The cement lifting device 8 and the cement horizontal conveying device 9 are auger-type conveying devices; the aggregate conveying device 7 is a belt conveyor.

The stirring device 10 is provided with two stirring shafts, which are respectively driven to rotate by a hydraulic motor; a discharge belt conveyor 11 is provided at the discharge port of the stirring device 10 . Aggregate conveying device 7 , cement lifting device 8 , cement horizontal conveying device 9 , stirring device 10 and discharge belt conveyor 11 are driven by hydraulic motors, which are connected with hydraulic system 3 .

Flowmeters are installed on the conveying pipelines of mixing water, emulsified asphalt and foamed asphalt; the hydraulic pressure of aggregate conveying device 7, cement lifting device 8, cement horizontal conveying device 9, stirring device 10 and discharge belt conveyor 11 On the motor, a revolution sensor is arranged; on the aggregate conveying device 7 and the cement horizontal conveying device 9, a load cell is arranged.

The control box of the automatic control system is set on the frame, the material level proximity switch, the water flow meter, the emulsified asphalt flow meter, the foamed asphalt flow meter, the motor revolution sensor of the cement lifting device, the cement horizontal conveying motor revolution sensor, the cement scale The weight sensor, aggregate conveying motor rotation speed sensor, aggregate weighing sensor and discharge belt conveyor motor rotation number sensor are all connected to the input end of the control module, the output end of the control module is connected to the material shortage alarm device, and each ingredient conveying motor The control device is connected to control the motor speed of the water pump, emulsified asphalt pump, foamed asphalt pump, cement lifting device, cement horizontal conveying device, aggregate conveying device and discharge belt conveyor, and various ingredients are controlled according to the set ingredient ratio requirements. delivery.

The silo screen 21 is made up of welded steel bars, which can control the granularity of the aggregate input into the silo. The large-size aggregate left on the screen is poured out after the screen is turned over by the screen overturning oil cylinder 25. A vibrator 22 is installed on the outer wall of the silo 6, and when the material adheres to the side wall, the high-frequency vibration of the vibrator 22 causes the material to fall. The material level control assembly 24 on the silo gate is used to detect and feed back the height of the aggregate on the batching belt. The lower end of the material level tongue plate 34 rides on the material pile, when the height of the material pile changes, the baffle plate 31 rotates around the rotating shaft 32, and the light sensor of the proximity switch 30 perceives the position of the baffle plate 31. When the height of the material is too low and the proximity switch cannot sense the baffle, it will prompt the system for a lack of material alarm.

Claims (5)

1. A mobile factory-mixed cold recycling machine, including a tractor (19), a frame (1), a power unit (2), a hydraulic system (3), a batching conveying device and a stirring device (10); the power unit ( 2), the water tank (4) and the fuel tank (5) are arranged at the front end of the vehicle frame (1), and its features are: Aggregate conveying device (7), stirring device (10) and discharge belt conveyor (11) are arranged on the vehicle frame (1) in sequence; the discharge end of aggregate conveying device (7) is located at the receiving end of stirring device (10). At the feed port; above the receiving end of the aggregate conveying device (7), there is a feed bin (6); The cement adding device is located on one side of the frame, including the cement lifting device (8) and the cement horizontal conveying device (9). The receiving port of the cement lifting device (8) is connected to the external cement silo, and the discharge port is connected to the cement horizontal conveying device. The receiving port of the device (9) is connected, and the discharging port of the cement horizontal conveying device (9) is connected with the receiving port of the mixing device (10); The silo (6) is installed on the vehicle frame (1) through outriggers, and the silo body (23) is divided into two silos: a regenerated silo and a new aggregate silo. 20) A flip-up silo screen (21) is installed, and the silo screen (21) is connected to the silo body through an overturning cylinder (25); a vibrator (22) is installed on the outer wall of the silo; A strip-shaped lower discharge port (35) is respectively provided at the place where the bottom of the two feed bins coincides with the belt of the aggregate conveying device (7), and a feed bin gate (26) is provided at the end of the discharge port; two The silo gates are respectively connected to the electric push rods (27) that control the opening of the gates, and there is a scale (28) nearby to display the opening size; on the two silo gates (26), there are respectively provided material level control components (24); The proximity switch (30) is installed on the bracket of the bin gate, the baffle plate (31) and the material level tongue (34) are installed on the bracket through the rotating shaft (32), and the fixed pin on the material level tongue (34) ( 33) Located in the arc groove on the baffle (31); A foaming asphalt adding device (13) is arranged above the stirring device (10), and an emulsified asphalt nozzle (14) and a mixing water nozzle (15) are arranged at the feed end of the stirring device (10), and the emulsified asphalt nozzle ( 14) Connect the emulsified asphalt adding device (16) through the pipeline, and the mixing water nozzle (15) connects with the water pump (18) through the pipeline; The stirring device (10) is provided with two stirring shafts, which are respectively driven and rotated by a hydraulic motor; a discharge belt conveyor (11) is provided at the outlet of the stirring device (10); Aggregate conveying device (7), cement lifting device (8), cement horizontal conveying device (9) and unloading belt conveyor (11) are driven by hydraulic motor, which is connected with hydraulic system; Flowmeters are installed on the conveying pipelines of mixing water, emulsified asphalt and foamed asphalt; aggregate conveying device (7), cement lifting device (8), cement horizontal conveying device (9) and discharge belt conveyor ( 11) The hydraulic motor is provided with a revolution sensor; the aggregate conveying device (7) and the cement horizontal conveying device (9) are provided with weighing sensors; The control box (12) of the automatic control system is set on the vehicle frame (1), and the material level proximity switch, water flow meter, emulsified asphalt flow meter, foamed asphalt flow meter, cement lifting device motor revolution sensor, cement horizontal conveying motor The revolution sensor, cement weighing sensor, aggregate conveying motor revolution sensor, aggregate weighing sensor and unloading belt conveyor motor revolution sensor are all connected to the input end of the control module, and the output end of the control module is connected to the material shortage alarm device. , and the control device connection of each batching conveying motor, control the motor speed of the water pump, emulsified asphalt pump, foamed asphalt pump, cement lifting device, cement horizontal conveying device, aggregate conveying device and discharge belt conveyor, according to the set batching Proportional requirements control the delivery of various ingredients. 2. The mobile factory-mixed cold recycling machine according to claim 1, characterized in that: the cement lifting device (8), the cement horizontal conveying device (9) and the mixing device (10) between the discharge port and the material receiving port The connections between them are connected through soft links. 3. The mobile factory-mixed cold recycling machine according to claim 1, characterized in that: the outriggers (17) of the vehicle frame include hydraulic outriggers and mechanical outriggers, and the hydraulic outriggers are provided with independent power units. 4. The mobile factory-mixed cold recycling machine according to claim 1, characterized in that: the cement lifting device (8) and the cement horizontal conveying device (9) are auger-type conveying devices; the aggregate conveying device (7) It is a belt conveyor. 5. The mobile factory-mixed cold recycling machine according to claim 1, characterized in that: the electric push rod (27) of the silo gate (26) is connected to the control system to control the height of the gate opening and accurately adjust the height of the aggregate. Delivery volume.