CN115945282A - A crushing and screening system for waste asphalt pavement materials - Google Patents

Abstract

The invention discloses a crushing and screening system for waste asphalt pavement materials, which belongs to the technical field of road construction, and comprises a transportation platform 1 and a transportation platform 2, and a material conveying mechanism, a crushing mechanism installed on the transportation platform 1 and the transportation platform 2 and arranged sequentially. Mechanism and unloading mechanism; the crushing mechanism includes a jaw crusher installed on the transport platform 1, a conveyor frame 1 located below the jaw crusher, a conveyor belt 1 connected to one end of the conveyor frame, and a conveyor belt 1 installed on the transport platform 2 The circular crusher on the top and matched with the conveyor belt 1, the conveyor frame 2 located below the circular crusher, and the conveyor belt 2 connected to one end of the conveyor frame 2, the conveyor belt 1 and the conveyor belt 2 are both in the shape of Tilt setting. The present invention realizes the crushing and vibrating screening of waste through the cooperative arrangement of the jaw crusher and the circular crusher, and then sets a dust removal box to collect and process the dust, thereby avoiding pollution to the environment.

Description

A crushing and screening system for waste asphalt pavement materials

technical field

The invention belongs to the technical field of road construction, and in particular relates to a crushing and screening system for waste asphalt pavement materials.

Background technique

Bitumen is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, and most of them exist in the form of liquid or semi-solid petroleum. Asphalt is a pavement structure cementing material widely used in road engineering. Asphalt materials with a certain viscosity and appropriate dosage and a certain gradation of mineral aggregates can be used in proportion to build asphalt pavements with different structures. Aggregate is the mineral in asphalt pavement materials. A general term for aggregates, which play the role of skeleton and filling in pavement materials. Sometimes several coarse and fine aggregates are mixed to form the required particle size gradation. Asphalt pavement is widely used in expressways. During the long-term use of asphalt pavement, natural conditions such as heat, oxygen, sunlight, water, and traffic loads will lead to asphalt aging and aggregate peeling, which will reduce the performance of asphalt pavement and cause various pavement diseases. . In order to better ensure driving safety and driving comfort, relevant departments will take measures to repair the road surface.

In recent years, with the continuous enhancement of environmental protection awareness, the development of pavement regeneration technology is rapid. Pavement regeneration technology involves milling, crushing, screening of old pavement asphalt mixture and recycling of old asphalt. Among them, the crushing of old materials and Screening is a key factor affecting the design of the mix ratio. The traditional crushing method is to use a jaw crusher to crush the RAP whose size exceeds the limit by extrusion. The impact force is large. Using this method for crushing will generate large noise , there is a lot of dust, which cannot meet the environmental protection requirements, and the particle size of the crushed material is too small to achieve the recovery of asphalt, which increases the construction cost.

Contents of the invention

In order to solve the above technical problems, the inventor obtained the technical solution of the present invention through practice and summary. The present invention discloses a crushing and screening system for waste asphalt pavement materials. The crushing and screening system includes a transport platform 1 and a transport platform 2, And the conveying mechanism, the crushing mechanism and the unloading mechanism installed on the transportation platform 1 and the transportation platform 2 in sequence; the crushing mechanism includes the jaw crusher installed on the transportation platform 1, and the Conveyor frame 1, conveyor belt 1 connected to one end of the conveyor frame, circular crusher installed on the transport platform 2 and matched with conveyor belt 1, conveyor frame 2 located below the circular crusher, and conveyor frame 2 connected to the conveyor frame Two transmission belts on one end, the transmission belt one and the transmission belt two are all inclined.

Further preferably, the conveying mechanism includes a plurality of telescopic columns installed on the first transportation platform, and a vibrating feeder arranged at the top of the plurality of telescopic columns, and the vibrating feeder cooperates with the jaw crusher.

Further preferably, the unloading mechanism includes an unloading platform, the unloading platform is fixedly installed on the second transportation platform, and the unloading platform is correspondingly matched with the second conveyor belt.

Further preferably, a dust removal box is fixedly connected to the top of the conveying frame, and a cylinder is fixedly connected to the bottom of the dust removal box. The dust is collected and processed by setting the dust removal box, and the cylinder is set to provide pushing power for the device.

Further preferably, the first conveyor frame and the second conveyor frame have the same structure, and the first conveyor belt and the second conveyor belt have the same structure.

Further preferably, a motor is fixedly connected to the end of the transport frame one away from the conveyor belt one, and the motor is connected to the conveyor belt one.

Further preferably, the lower ends of the first and second conveyor belts are provided with a plurality of support rods, and the bottoms of the plurality of support rods are respectively connected and fixed to the top ends of the first and second transportation platforms.

Further preferably, the bottom of the first transportation platform is fixed with the first transportation tire and the first flat leg, and the bottom of the second transportation platform is fixed with the second transportation tire and the second flat leg.

Compared with the prior art, the present invention can obtain the following technical effects:

The present invention realizes the crushing and vibrating screening of waste through the cooperative setting of the jaw crusher and the circular crusher, and then installs a dust removal box to collect and process the dust, which not only effectively avoids environmental pollution, but also saves construction costs ; Through the coordinated design of the conveyor frame and the conveyor belt, it is convenient to move the packaging box, the structure design is reasonable, the work efficiency is improved to the greatest extent, and it has good use and promotion value.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings on the premise of not paying creative work.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a top view of the present invention.

Implementation

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1-2, a crushing and screening system for waste asphalt pavement materials is composed of a transportation platform 1, a transportation platform 2, a conveying mechanism 3, a crushing mechanism 4 and a discharge mechanism, and the conveying mechanism 3, The crushing mechanism 4 and the unloading mechanism are installed on the transport platform one 1 and the transport platform two 2 and arranged in sequence;

Among them, the feeding mechanism 3 is composed of two telescopic columns 31 installed on the transport platform-1 and a vibrating feeder 32 arranged at the top of the two telescopic columns 31; the crushing mechanism 4 is composed of a jaw crusher 41, a conveyor frame- 42. Conveyor belt 1 43, circular crusher 44, conveyor frame 2 45 and conveyor belt 2 46, jaw crusher 41 is fixedly installed on transport platform 1, and jaw crusher 41 and vibrating feeder 32 To form a match, the conveyor frame 42 is located below the jaw crusher 41, and is fixedly connected to the side of the transport platform 1, and the conveyor belt 1 43 is connected to the end of the conveyor frame 42 away from the feeding mechanism 3. The circular crusher 44 is installed on the transport platform 2 2 and cooperates with the conveyor belt 1 43. The conveyor frame 2 45 is located below the round crusher 44 and is fixedly connected to the side of the transport platform 2 2. The conveyor belt 2 46 is connected to the conveyor frame 2 45 is far away from the end of the transport platform one 1, and the conveyor belt one 43 and the conveyor belt two 46 are all inclined upward; The material platform 5 is correspondingly matched with the second conveyor belt 46, while the first conveyor frame 42 and the second conveyor frame 45 have the same structure, and the one conveyor belt 43 and the second conveyor belt 46 have the same structure.

The first 42 of the conveyor frame is fixedly connected with a dust removal box 24, the bottom of the dust removal box 24 is fixedly connected with a cylinder 23, and the top of the dust removal box 24 is provided with a collecting hopper, which is fixedly connected with the second 45 of the conveyor frame, and the top of the collecting hopper is fixed. A dust collection box is connected to facilitate the collection and treatment of dust; at the same time, the motor 7 is fixedly connected to the end of the conveyor frame 42 away from the conveyor belt 43, and the motor 7 is connected to the conveyor belt 43 to provide power for the operation of the equipment . The combination of the jaw crusher 41 and the circular crusher 44 realizes the crushing and vibrating screening of waste materials; the dust removal box 24 is installed to collect and process the dust, which not only effectively avoids environmental pollution, but also saves construction work. cost.

Conveyor belt one 43 and transmission belt two 46 lower ends are all provided with two support bars 47, and the bottom of support bar 47 is respectively connected with the top of transport platform one 1 and transport platform two 2 and is fixed, plays a supporting role; Simultaneously, transport platform The bottom of one 1 is fixedly equipped with transport tire one 11 and flat support leg one 12, and the bottom of transport platform two 2 is also fixedly equipped with transport tire two 21 and flat support leg two 22, which is convenient to move and fix.

Working principle: when in use, put the waste into the vibrating feeder 31, the waste enters the jaw crusher 41, vibrates and screens under the action of the jaw crusher 41, and then transports it to the The circular crusher 44 is further crushed, wherein the aggregate passing through the first-grade screen is screened by the conveyor belt 2 46, and then enters the concentration area through the unloading table 5, during which dust removal and dust removal are carried out. Fall under the effect of gravity, enter in the dust collection box by dust removal box 24, get final product loading and transportation after installing sealing plate again.

Claims (8)

1. A crushing and screening system for waste asphalt pavement materials, characterized in that: the crushing and screening system includes transport platform one (1) and transport platform two (2), and is installed on transport platform one (1) and transport platform Two (2) conveying mechanism (3), crushing mechanism (4) and unloading mechanism arranged in sequence; The crushing mechanism (4) includes a jaw crusher (41) installed on the transport platform one (1), a conveying frame one (42) located below the jaw crusher (41), connected to the conveying frame (42) Conveyor belt one (43) on one end, circular crusher (44) installed on the transport platform two (2) and matched with conveyor belt one (43), conveyor frame located below the circular crusher (44) Two (45), and the second conveyor belt (46) connected to one end of the conveyor frame two (45), the first conveyor belt (43) and the second conveyor belt (46) are both inclined. 2. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: the conveying mechanism (3) includes a plurality of telescopic columns (31) installed on the transport platform one (1) , and a vibrating feeder (32) arranged at the top of multiple telescopic columns (31), the vibrating feeder (32) cooperates with the jaw crusher (41). 3. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: the unloading mechanism includes a unloading platform (5), and the unloading platform (5) is fixedly installed on the second transport platform (2), and the unloading platform (5) is correspondingly matched with the second conveyor belt (46). 4. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: said conveying frame one (42) is fixedly connected with a dust removal box (24), and the bottom of said dust removal box (24) Fixedly connected with cylinder (23). 5. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: the first conveyor frame (42) and the second conveyor frame (45) have the same structure, and the first conveyor belt (43) Same structure as transmission belt two (46). 6. A crushing and screening system for waste asphalt pavement materials according to claim 5, characterized in that: a motor (7) is fixedly connected to the end of the conveying frame one (42) away from the conveying belt one (43), The motor (7) is connected with the first transmission belt (43). 7. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: the lower ends of the first conveyor belt (43) and the second conveyor belt (46) are equipped with a plurality of support rods (47) , the bottoms of the plurality of support rods (47) are respectively connected and fixed to the tops of the first transport platform (1) and the second transport platform (2). 8. A crushing and screening system for waste asphalt pavement materials according to claim 1, characterized in that: the bottom of the transportation platform one (1) is fixed with a transportation tire one (11) and a flat leg one (12) , the bottom of the transport platform two (2) is fixedly installed with two transport tires (21) and two flat outriggers (22).

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