Material conveying system for asphalt mixing station
By setting up a silo and conveyor belt system in the underground pipeline corridor, the problem of dust pollution during asphalt concrete transportation is solved, and safe and efficient material transportation and mixing is achieved.
Patent Information
- Application Number
- CN202422292334.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing asphalt concrete conveying system generates a large amount of dust during the raw material conveying process, endangering workers' health and poses safety hazards.
Design a material silo and conveyor belt system installed underground. The material silo is located in the underground pipe corridor. The discharge end of the conveyor belt is placed along the underground pipe corridor to the ground outlet to reduce dust floating, and mix raw materials in the heating mixing silo. The material transportation is controlled using screen plates, conical discharge ends and cutting rollers to ensure safety and efficiency.
Effectively reduce the damage to workers by dust, reduce the risk of accidental injury of machines, and improve production safety and efficiency.
Smart Images
Figure CN223127925U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of conveying systems, and particularly relates to a material conveying system for an asphalt mixing plant. Background Art
[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture made of artificially selected mineral materials with a certain gradation, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, which are mixed under strictly controlled conditions. At present, asphalt mixing plants are mainly used to produce and process asphalt concrete. A conveying system is required to transport the raw materials of asphalt concrete into the heating and mixing bin for mixing.
[0003] The conveying system of the existing device generally uses a forklift to pour the raw materials into the inside of the silo, and the raw materials fall into the conveyor belt through the bottom of the silo. The conveyor belt adds the raw materials into the heating and mixing bin for mixing. A large amount of dust will float in the air during the conveying process of the raw materials, causing harm to the staff. Therefore, a sunken conveying system is designed to solve the above problems, which can reduce the floating of dust. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a material conveying system for an asphalt mixing plant, which has the advantage of reducing dust generation during conveying, and solves the problem of a large amount of dust generated during conveying by the existing device.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solutions: A material conveying system for an asphalt mixing plant, comprising: a silo, with a conveyor belt arranged below it, and a heating and mixing bin arranged at the discharge end of the conveyor belt; the silo is arranged in an underground pipe gallery, the top feed inlet is flush with the ground, and the receiving end of the conveyor belt is arranged inside the underground pipe gallery, aligned with the bottom of the silo, and the discharge end of the conveyor belt is placed along the underground pipe gallery towards the ground outlet, and a heating and mixing bin is arranged below the outlet end of the conveyor belt.
[0008] In some embodiments, a sieve plate is fixedly arranged on the inner side wall of the top of the silo, and the sieve plate adopts a grid design, and the grid holes are just large enough for the raw materials to pass through.
[0009] In some embodiments, the lower discharge end of the silo is set to be conical, which is convenient for the materials inside the silo to fall into the feed inlet of the conveyor belt.
[0010] In some embodiments, a blanking roller is provided at the discharge port of the silo. Grooves are formed on the surface of the blanking roller. By driving the blanking roller to rotate using a motor, the materials inside the silo can enter the grooves of the blanking roller, and the rotation of the blanking roller drives the materials to rotate and finally drop into the feeding port of the conveyor belt.
[0011] In some embodiments, steps are provided at the bottom of the underground pipe gallery where the silo and the conveyor belt are located, leading to the location of the silo.
[0012] In some embodiments, multiple groups of the silos and the conveyor belts can be provided to simultaneously convey different raw materials into the heating and stirring bin for mixing and stirring.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present utility model provides a material conveying system for an asphalt mixing plant, having the following beneficial effects:
[0015] 1. In this conveying system, by arranging the silo and the conveyor belt underground, dust floating can be reduced, thereby reducing the harm of dust to the human body. At the same time, being arranged inside the underground pipe gallery can reduce the possibility of contact with people, thus avoiding the situation of machines accidentally injuring workers and ensuring the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic flow diagram of the present utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the present utility model.
[0018] In the figure: 11, silo; 12, conveyor belt; 13, heating and stirring bin; 14, sieve plate; 15, blanking roller; DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0020] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.
[0021] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0022] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0023] Asphalt concrete, commonly known as asphalt concrete, is a mixture made of artificially selected mineral materials with a certain gradation composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, which are mixed under strictly controlled conditions. At present, asphalt mixing plants are mainly used to produce and process asphalt concrete. A conveying system is required to convey the raw materials of asphalt concrete into the heating and mixing bin for mixing.
[0024] In the related art, the conveying system generally uses a forklift to pour the raw materials into the inside of the silo, and the raw materials fall onto the conveyor belt through the bottom of the silo. The conveyor belt adds the raw materials into the heating and mixing bin for mixing. A large amount of dust will float in the air during the conveying process of the raw materials by this conveying system, causing harm to the staff.
[0025] To solve the problems in the related art to a certain extent, the embodiment of this application provides a material conveying system for an asphalt mixing plant. When it is necessary to mix the raw materials, the raw materials on the raw material pile are shoveled onto the top of the silo 11 by using a trolley. At this time, the raw materials will fall into the inside of the silo 11 and then fall onto the conveyor belt 12 through the bottom of the silo 11. The conveyor belt 12 can convey the raw materials out from the underground pipe gallery, convey the raw materials to the top of the heating and mixing bin 13, and finally fall into the inside of the heating and mixing bin 13. Asphalt is added inside the heating and mixing bin 13, and heating can keep the asphalt from solidifying, so that it can be better mixed with the raw materials.
[0026] The following describes this application with reference to the accompanying drawings and specific embodiments:
[0027] Combined with Figure 1 - Figure 2 , an embodiment of the present application provides a material conveying system for an asphalt mixing plant, including: a silo 11, with a conveyor belt 12 arranged below, and a heating and stirring bin 13 is arranged at the discharge end of the conveyor belt 12; the silo 11 is arranged in an underground pipe gallery, the top feeding port is flush with the ground, and the receiving end of the conveyor belt 12 is arranged inside the underground pipe gallery, aligned with the bottom of the silo 11, and the discharge end of the conveyor belt 12 is placed along the underground pipe gallery towards the ground outlet, and a heating and stirring bin 13 is arranged below the outlet end of the conveyor belt 12.
[0028] Specifically, the model of the conveyor belt 12 is B500, and its principle mainly depends on frictional power operation. The working principle of the conveyor belt is that the driving device pulls the conveyor belt, which is composed of a middle frame and idlers. When the driving device works, it drives the rotation of the rotating shaft, thereby driving the rotation of the idlers. The idlers drive the cyclic rotation of the conveyor belt through friction, so as to achieve the transportation effect. This operation mode enables the conveyor belt to effectively carry and transport goods, providing convenience for the production process of the asphalt mixing plant. The heating and stirring bin 13 is actually a 50-ton storage tank of a DZL electric heating heat-conducting oil heating asphalt tank. Its working principle is specifically that this heating and stirring tank uses an organic heat carrier (heat-conducting oil) as the heat transfer medium, uses a coal-fired, gas-fired or oil-fired furnace as the heat source, and uses a hot oil pump for forced circulation to heat the asphalt to the use temperature. The characteristics of this heating and stirring tank include fast heating speed, the ability to produce a large amount of high-temperature asphalt, energy saving, and the ability to temporarily extract a small amount of hot asphalt. It generally takes no more than 4 hours to produce 160°C hot asphalt.
[0029] When in use, when it is necessary to mix raw materials, the raw materials on the raw material pile are shoveled onto the top of the silo 11 by using a trolley. At this time, the raw materials will fall into the interior of the silo 11, fall from the bottom of the silo 11 onto the conveyor belt 12, and the conveyor belt 12 can transport the raw materials out of the underground pipe gallery, transport the raw materials to the top of the heating and stirring bin 13, and finally fall into the interior of the heating and stirring bin 13. Asphalt is added inside the heating and stirring bin 13, and heating can keep the asphalt from solidifying, so that it can be better mixed with the raw materials. During the working process, the dust generated when the materials in the silo 11 fall onto the conveyor belt 12 can be prevented from rising inside the underground pipe gallery, which can reduce the harm to workers. At the same time, the contact between the underground conveying device and people is reduced, which can reduce the risk.
[0030] In some embodiments, a sieve plate 14 is fixedly arranged on the inner side wall of the top end of the silo 11, and the sieve plate 14 adopts a grid design, and the grid holes are just large enough for the raw materials to pass through.
[0031] When in use, the sieve plate 14 can screen out the agglomerated raw materials to prevent them from being added to the interior of the silo 11 and blocking the discharge port of the silo 11.
[0032] In some embodiments, the lower discharge end of the silo 11 is configured to be conical, facilitating the falling of the materials inside the silo 11 into the feeding port of the conveyor belt 12.
[0033] During use, the conical design at the bottom of the silo 11 enables the materials to gather better and be discharged from the bottom, avoiding the accumulation of materials inside the silo 11.
[0034] In some embodiments, a feeding roller 15 is provided at the discharge port of the silo 11. Grooves are formed on the surface of the feeding roller 15. By driving the feeding roller 15 to rotate using a motor, the materials inside the silo 11 can enter the grooves of the feeding roller 15. Through the rotation of the feeding roller 15, the materials are driven to rotate and finally fall into the feeding port of the conveyor belt 12.
[0035] Specifically, the feeding roller 15 is a cylinder with grooves on its surface, and it shields the bottom discharge port of the silo 11. Driven by a motor to rotate, materials will accumulate inside the grooves during rotation, and the materials inside the silo 11 are conveyed onto the conveyor belt 12.
[0036] During use, the feeding speed of the silo 11 can be controlled by controlling the rotation speed of the feeding roller 15 and adjusted according to actual needs.
[0037] In some embodiments, steps are provided at the bottom of the underground pipe gallery where the silo 11 and the conveyor belt 12 are located, leading to the position where the silo 11 is located.
[0038] During use, the step design inside the underground pipe gallery facilitates the maintenance and repair of the silo 11 and the conveyor belt 12 by the staff.
[0039] In some embodiments, multiple groups of the silo 11 and the conveyor belt 12 can be provided, and different raw materials are simultaneously conveyed into the heating and stirring bin 13 for mixing and stirring.
[0040] During use, multiple raw materials can be simultaneously conveyed into the heating and stirring bin 13 for mixing, which can improve work efficiency.
[0041] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0042] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A material conveying system for an asphalt mixing plant, comprising: The silo (11) is provided with a conveyor belt (12) below, and a heating and stirring bin (13) is arranged at the discharge end of the conveyor belt (12); It is characterized in that: the silo (11) is arranged in the underground pipe gallery, the top feeding port is flush with the ground, and the receiving end of the conveyor belt (12) is arranged inside the underground pipe gallery, aligned with the bottom of the silo (11), and the discharge end of the conveyor belt (12) is placed along the underground pipe gallery towards the ground outlet, and a heating and stirring bin (13) is arranged below the outlet end of the conveyor belt (12).
2. The material conveying system for an asphalt mixing plant according to claim 1, characterized in that: A sieve plate (14) is fixedly arranged on the inner side wall of the top of the silo (11), and the sieve plate (14) adopts a grid design, and the grid holes are just large enough for the raw materials to pass through.
3. A material conveying system for an asphalt mixing plant according to claim 1, characterized in that: The lower discharge end of the silo (11) is conical, which is convenient for the materials inside the silo (11) to fall into the feeding port of the conveyor belt (12).
4. A material conveying system for an asphalt mixing plant according to claim 1, characterized in that: A blanking roller (15) is arranged at the discharge port of the silo (11), and grooves are formed on the surface of the blanking roller (15). By driving the blanking roller (15) to rotate by a motor, the materials inside the silo (11) can enter the grooves of the blanking roller (15), and the materials are driven to rotate by the rotation of the blanking roller (15) and finally fall into the feeding port of the conveyor belt (12).
5. A material conveying system for an asphalt mixing plant according to claim 1, characterized in that: Steps are arranged at the bottom of the underground pipe gallery where the silo (11) and the conveyor belt (12) are located, which can lead to the position where the silo (11) is located.
6. The material conveying system for an asphalt mixing plant according to claim 1, wherein: Multiple groups of the silo (11) and the conveyor belt (12) can be arranged, and different raw materials are simultaneously conveyed into the heating and stirring bin (13) for mixing and stirring.