Auxiliary agent feeding device for asphalt production

Abstract

The utility model relates to an auxiliary agent feeding device for asphalt production, which comprises a Z-shaped belt elevator, a material crushing mechanism and a weighing feeding mechanism, the Z-shaped belt elevator comprises an elevator shell and a conveying belt, the material crushing mechanism is arranged at the discharging end of the Z-shaped belt elevator and comprises a discharging hopper, a material crushing roller and a driving mechanism, and the weighing feeding mechanism is arranged at the discharging end of the Z-shaped belt elevator. The discharging hopper is arranged at a discharging port of the elevator shell, and the crushing rollers are arranged in the discharging hopper side by side in pairs. The weighing and feeding mechanism comprises a feeding hopper, weighing sensors, weighing supporting frames, a fixing frame, a feeding pipe and a feeding valve, the lower end opening is connected with the feeding pipe, the feeding valve is arranged on the feeding pipe, the fixing frame is arranged on the ground and comprises a top frame and a plurality of supporting legs, the feeding hopper is supported on the top frame through the weighing supporting frames, and the weighing sensors are arranged on the supporting legs. The weighing sensor is located between the bottom of the weighing supporting frame and the top frame and used for weighing the auxiliary agents in the feeding head. The automatic quantitative delivery device has the advantages of time saving, labor saving and automatic quantitative delivery, and is high in automation and mechanization degree.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production equipment, and more specifically, to an auxiliary agent feeding device for asphalt production. Background Art

[0002] Asphalt is a black or brown viscous liquid, usually obtained by processing natural petroleum; the main components are carbon, hydrogen and a small amount of nitrogen, sulfur and other elements. Asphalt has a high density and high viscosity. It is resistant to water, corrosion and high temperature, making it the first choice for a variety of building materials, waterproof materials, road paving materials, etc. During the asphalt processing, other auxiliary agents need to be added to the raw materials, such as polymers need to be added to modified asphalt. At present, the addition of auxiliary agents requires manual control of the addition amount to pour the auxiliary agents into the reactor through the inlet on the top of the reactor. This process is time-consuming and labor-intensive, and the labor intensity is high. In addition, the feeding accuracy cannot be well controlled, which affects the consistency and quality of the finished product. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an auxiliary agent feeding device for asphalt production, which can solve the problems of high labor intensity and poor feeding accuracy control in the current manual control of auxiliary agent feeding.

[0004] The utility model provides the following technical scheme: an auxiliary agent feeding device for asphalt production, comprising a Z-type belt elevator, a crushing mechanism, and a weighing and feeding mechanism, wherein the Z-type belt elevator comprises an elevator housing and a conveyor belt arranged inside the elevator housing, the lower end of the Z-type belt elevator is a feeding end, and the upper end is a discharging end, the crushing mechanism is arranged at the discharging end of the Z-type belt elevator, the crushing mechanism comprises a discharging hopper, a crushing roller, and a driving mechanism, the elevator housing is provided with a discharging port at the bottom of the discharging end, the discharging hopper is arranged at the discharging port of the elevator housing, the crushing rollers are arranged side by side in pairs inside the discharging hopper, the crushing rollers are provided with multiple rows of crushing racks arranged at intervals, the crushing racks of the two crushing rollers in pairs are arranged in an interlaced manner, and are used to rotate towards each other under the action of the driving mechanism to crush the auxiliary agent;

[0005] The weighing and feeding mechanism is located below the discharging hopper, and includes a feeding hopper, a weighing sensor, a weighing support frame, a fixing frame, a feeding pipe, and a feeding valve. The feeding hopper is arranged below the discharging hopper and is used to receive the auxiliary agent dropped from the discharging hopper. The lower end of the feeding hopper is connected to the feeding pipe and the feeding valve is arranged on the feeding pipe. The fixing frame is placed on the ground, and includes a top frame and a plurality of legs supported below the top frame. The top frame is provided with a through hole for the feeding pipe to pass through. The feeding hopper is supported on the top frame by a plurality of weighing support frames. The weighing sensor is located between the bottom of the weighing support frame and the top frame, and is used to weigh the auxiliary agent in the feeding head. When the auxiliary agent reaches a set weight, the feeding valve opens to feed the auxiliary agent into the reaction tank through the feeding pipe.

[0006] Furthermore, two pairs of crushing rollers are arranged and distributed vertically, the crushing rack of the upper crushing roller is longer than that of the lower crushing roller, and the distribution gap of the crushing rack of the upper crushing roller is larger than that of the lower crushing roller.

[0007] Furthermore, a top cover is provided on the upper part of the hoist casing, a feed port is opened on the top cover at the feed end of the Z-type belt hoist, and a feed hopper connected to the feed port is provided on the hoist casing at the feed end of the Z-type belt hoist.

[0008] Furthermore, a flexible protective film is connected between the feeding hopper and the discharging hopper.

[0009] Furthermore, the conveyor belt is a baffle conveyor belt.

[0010] Furthermore, the auxiliary agent feeding device for asphalt production also includes a feeding controller, and the feeding controller is respectively connected to the weighing sensor, the driving mechanism, the Z-type belt elevator, and the feeding valve.

[0011] Beneficial effect: When the utility model is used to feed materials into the asphalt production reactor, the operator feeds the auxiliary agent to the feeding end of the Z-type belt elevator on the ground, which is lifted and transported to the discharging end by the conveyor belt, and falls into the discharging hopper through the discharging port. During the falling process, it is crushed by the crushing roller to break up the accumulated blocks, which is convenient for subsequent rapid mixing and reaction. After being crushed, the auxiliary agent falls downward into the feeding hopper, and the weight of the auxiliary agent in the feeding hopper is weighed by the weighing sensor. After the weight of the auxiliary agent reaches the set value, the feeding controller controls the Z-type belt elevator to stop feeding and the driving mechanism to stop working, and the feeding valve is opened. The material in the feeding hopper is fed into the reaction tank through the feeding pipe for automatic quantitative feeding. Accurate feeding of auxiliary agents can be achieved without manual control. The process can be completed manually on the ground. The lifting and feeding-breaking-block-weighing feeding operations are carried out in sequence by mechanized means, which avoids the high-altitude handling and dumping operations, greatly reduces the labor intensity, is conducive to improving production efficiency and production quality, and maintains good product consistency.

[0012] In addition, a top cover is set above the lifting casing, and a flexible protective film is connected between the feeding hopper and the discharging hopper to maintain a closed conveying space during the transportation of the auxiliary agent, so as to avoid a large amount of dust in the transportation process to pollute the environment and affect the health of the human body;

[0013] Two pairs of crushing rollers are arranged. The crushing rack of the upper crushing roller is longer. The auxiliary agent falling into the discharge hopper is gathered during rotation to prevent the auxiliary agent from being scattered on the outside of the crushing roller instead of passing through between the crushing rollers. The rack distribution gap of the crushing rack of the upper crushing roller is larger, and the rack distribution gap of the crushing rack of the lower crushing roller is smaller. During the process, the upper crushing roller and the lower crushing roller act gradually, the particles are crushed from coarse to fine, and the crushing effect is uniform and complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a specific embodiment 1 of an auxiliary agent feeding device for asphalt production of the utility model;

[0015] Figure markings: 1-Z-type belt elevator; 11-elevator casing; 12-conveyor belt; 13-discharge port; 14-feed hopper; 15-top cover; 2-discharge hopper; 3-crushing roller; 4-feeding hopper; 5-feeding pipe; 6-feeding valve; 71-top frame; 72-support leg; 81-weighing support frame; 82-weighing sensor; 9-flexible protective film. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the accompanying drawings.

[0017] Specific embodiment 1 of an auxiliary agent feeding device for asphalt production of the utility model:

[0018] like Figure 1 As shown, the auxiliary agent feeding device for asphalt production includes a Z-type belt elevator 1, a crushing mechanism and a weighing feeding mechanism. The Z-type belt elevator 1 includes an elevator housing 11 and a conveyor belt 12 arranged inside the elevator housing. The conveyor belt 12 is a baffle conveyor belt with a strong solid material lifting force. The lower end of the Z-type belt elevator 1 is the feeding end, and the upper end is the discharging end. A top cover 15 is arranged on the upper part of the elevator housing 11 to prevent dust from overflowing during the transportation of solid auxiliary agents, which is environmentally friendly and safe. The top cover 15 is provided with a feeding port at the feeding end, and a feeding hopper 14 fixed on the elevator housing is provided at the feeding port, which is convenient for operators to pour materials into the feeding hopper 14 on the ground. The elevator housing is provided with a discharging port 13 at the bottom of the discharging end.

[0019] The crushing mechanism is arranged at the discharge end of the Z-type belt elevator. The crushing mechanism includes a discharge hopper 2, a crushing roller 3 and a driving mechanism. The discharge hopper 2 is arranged at the discharge port 13 of the elevator housing, and the crushing roller 3 is arranged inside the discharge hopper. The driving mechanism includes a reduction motor for driving the crushing roller 3 to rotate. The crushing rollers 3 are arranged in pairs and side by side. The crushing rollers 3 are provided with multiple rows of interval-arranged crushing racks, and the crushing racks of the two pairs of crushing rollers are arranged alternately. In this embodiment, two pairs of crushing rollers 3 are arranged and distributed up and down. The length of the crushing rack of the upper crushing roller is greater than that of the lower crushing roller, and the distribution gap of the crushing rack of the upper crushing roller is larger than that of the lower crushing roller. Therefore, when the auxiliary agent falls into the discharge hopper through the discharge port, the crushing rack of the upper crushing roller is first moved and the material is pulled to the middle of the two crushing rollers, and then it is pre-crushed by the upper crushing roller and crushed by the lower crushing roller in turn, and the lumps in the auxiliary agent are eliminated to meet the requirements of subsequent rapid mixing and reaction.

[0020] The weighing and feeding mechanism is located below the discharge hopper 2 and is used to receive, weigh and feed the auxiliary agent. The weighing and feeding mechanism includes a feeding hopper 4, a weighing support frame 81, a weighing sensor 82, a fixing frame, a feeding pipe 5 and a feeding valve 4. The feeding hopper 4 is arranged below the discharge hopper 2 and is used to receive the auxiliary agent dropped from the discharge hopper 2. The lower end opening of the feeding hopper 4 is connected to the feeding pipe 5, and the feeding valve 4 is arranged on the feeding pipe 5. The fixed frame is placed on the ground, including a top frame 71 and a plurality of legs 72 supported under the top frame 71. The top frame 71 supports the feeding hopper 4 through a weighing support frame 81, and a weighing sensor 82 is arranged between the bottom of the weighing support frame 81 and the top frame 71 to weigh the auxiliary agent in the feeding hopper. A through hole is provided in the middle of the top frame 71 for the feeding pipe 5 to pass through, and a gap is matched with the feeding pipe 5 to avoid affecting the weighing of the weighing sensor; a flexible protective film 9 is connected between the upper opening of the feeding hopper and the lower opening of the discharge hopper. Its function is to keep the feeding space closed without interfering with the weighing of the weighing sensor to avoid the overflow of dust generated by the auxiliary agent.

[0021] In the utility model, a feeding controller is provided, and the feeding controller is respectively connected with a weighing sensor, a driving mechanism, a Z-type belt elevator, and a feeding valve. When the weighing sensor receives a weighing sensor signal and the weight of the auxiliary agent in the feeding hopper reaches a set value, the Z-type belt elevator is controlled to stop conveying materials, and the driving mechanism controls the crushing roller to stop moving, that is, the feeding is stopped. At the same time, the feeding valve is opened, and the auxiliary agent in the feeding hopper is fed into the asphalt reaction tank through the feeding pipe for mixing reaction.

[0022] In summary, it can be found that when the auxiliary agent feeding device for asphalt production feeds materials, the operator directly feeds the auxiliary agent to the feeding end of the Z-type belt elevator on the ground. The auxiliary agent falls into the discharge hopper after being lifted and discharged, and is successively crushed by the upper crushing roller and the lower crushing roller to crush large blocks, and then falls into the feeding hopper. The weight of the auxiliary agent in the feeding hopper is weighed by the weighing sensor. When the weight of the auxiliary agent reaches the set value, the feeding controller opens the feeding valve to complete the feeding of the auxiliary agent to the reaction tank. The automatic quantitative feeding has better accuracy, and the lifting, conveying, crushing and quantitative feeding are realized by mechanized means, eliminating the high-altitude handling and dumping operations, which not only greatly reduces the labor intensity and saves manpower, but also improves the asphalt production efficiency and is conducive to maintaining production quality and consistency.

[0023] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An auxiliary agent feeding device for asphalt production, characterized in that: It includes a Z-type belt elevator, a crushing mechanism, and a weighing and feeding mechanism. The Z-type belt elevator includes an elevator housing and a conveyor belt arranged inside the elevator housing. The lower end of the Z-type belt elevator is a feeding end, and the upper end is a discharging end. The crushing mechanism is arranged at the discharging end of the Z-type belt elevator. The crushing mechanism includes a discharging hopper, a crushing roller, and a driving mechanism. The elevator housing is provided with a discharging port at the bottom of the discharging end. The discharging hopper is arranged at the discharging port of the elevator housing. The crushing rollers are arranged side by side in pairs inside the discharging hopper. The crushing rollers are provided with multiple rows of crushing racks arranged at intervals. The crushing racks of the two pairs of crushing rollers are arranged in an interlaced manner and are used to rotate towards each other under the action of the driving mechanism to crush the auxiliary agent. The weighing and feeding mechanism is located below the discharging hopper, and includes a feeding hopper, a weighing sensor, a weighing support frame, a fixing frame, a feeding pipe, and a feeding valve. The feeding hopper is arranged below the discharging hopper and is used to receive the auxiliary agent dropped from the discharging hopper. The lower end of the feeding hopper is connected to the feeding pipe and the feeding valve is arranged on the feeding pipe. The fixing frame is placed on the ground, and includes a top frame and a plurality of legs supported below the top frame. The top frame is provided with a through hole for the feeding pipe to pass through. The feeding hopper is supported on the top frame by a plurality of weighing support frames. The weighing sensor is located between the bottom of the weighing support frame and the top frame, and is used to weigh the auxiliary agent in the feeding head. When the auxiliary agent reaches a set weight, the feeding valve opens to feed the auxiliary agent into the reaction tank through the feeding pipe.

2. The auxiliary agent feeding device for asphalt production as claimed in claim 1, characterized in that: Two pairs of crushing rollers are arranged and distributed up and down. The length of the crushing rack of the upper crushing roller is greater than that of the lower crushing roller, and the distribution gap of the crushing rack of the upper crushing roller is larger than that of the lower crushing roller.

3. An auxiliary agent feeding device for asphalt production as claimed in claim 1 or 2, characterized in that: A top cover is arranged on the upper part of the hoist casing, a feed port is opened on the top cover at the feed end of the Z-type belt hoist, and a feed hopper connected with the feed port is arranged on the hoist casing at the feed end of the Z-type belt hoist.

4. The auxiliary agent feeding device for asphalt production as claimed in claim 3, characterized in that: A flexible protective film is connected between the feeding hopper and the discharging hopper.

5. An auxiliary agent feeding device for asphalt production as claimed in claim 1, 2 or 4, characterized in that: The conveyor belt is a baffle conveyor belt.

6. An auxiliary agent feeding device for asphalt production as claimed in claim 1, 2 or 4, characterized in that: The utility model also comprises a feeding controller, which is respectively connected with a weighing sensor, a driving mechanism, a Z-type belt elevator and a feeding valve.

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