Cold patch asphalt production system based on traditional asphalt feeding system and feeding process

Abstract

The invention relates to the technical field of asphalt production, and discloses a cold patch asphalt production system based on a traditional asphalt feeding system and a feeding process. Comprising a mixing tank I, a mixing tank II, a stirrer, an asphalt pump, a cold patch pump, an additive pump, a manual three-way change-over valve, a pneumatic butterfly valve, a pipeline system, an automatic packaging line, an automatic weighing system and a PLC (Programmable Logic Controller) control system, the pipeline system comprises an asphalt pipeline, a discharging pipe I, a discharging pipe II and a cold liquid supplementing pipeline; stirrers are mounted in the mixing tank I and the mixing tank II; the asphalt pump is respectively communicated with the mixing tank I and the mixing tank II through conveying pipelines, the cold patching agent pump is communicated with the mixing tank II through a cold patching agent pipeline, and a manual three-way change-over valve is mounted between the asphalt pipeline and the discharging pipe I; therefore, compared with a traditional asphalt feeding system, waste of cold patch asphalt materials is reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt production, and in particular to a cold patch asphalt production system and a feeding process based on a traditional asphalt feeding system. Background Art

[0002] In my country, high-grade highways are widely used, and generally adopt asphalt pavement structure; ordinary asphalt is more suitable for some projects with large engineering volume and concentrated locations, and has better performance, but it is inconvenient and uneconomical to maintain and repair some scattered and small-scale diseased pavements, especially in rainy, snowy and low-temperature weather, using asphalt to repair pavements is no longer applicable. When repairing pavement diseases, cold-patch asphalt not only has little environmental pollution, convenient construction, simple operation, and can be constructed in low temperature, rainy and snowy environments, but also does not need to be heated compared to hot-mix asphalt, saving energy and being more economical. And using cold-patch asphalt to repair pavement can achieve the purpose of rapid repair and immediate opening to traffic.

[0003] Therefore, in the actual production process, two types of asphalt materials and cold patch asphalt materials will be produced for construction workers to choose from. In the existing traditional asphalt feeding system, after the production of cold patch asphalt is completed, it will enter the automatic packaging line through the asphalt discharge pipe for quantitative packaging. This will result in a portion of cold patch asphalt material remaining in the asphalt discharge pipe when the asphalt material is produced next time, resulting in a waste of resources and increased production costs. In addition, the portion of cold patch asphalt material remaining in the asphalt discharge pipe needs to be cleaned, thereby reducing production efficiency. Summary of the invention

[0004] In order to solve the problem that in the existing traditional asphalt feeding system, after the production of cold patch asphalt is completed, it will enter the automatic packaging line through the asphalt discharge pipe for quantitative packaging, which will result in a part of the cold patch asphalt remaining in the asphalt discharge pipe when the asphalt is produced next time, thereby causing a waste of resources and increasing the production cost, and it is also necessary to clean up the part of the cold patch asphalt remaining in the asphalt discharge pipe, thereby reducing the production efficiency, the present application provides a cold patch asphalt production system and feeding process based on the traditional asphalt feeding system.

[0005] The present application provides a cold patch asphalt production system and feeding process based on a traditional asphalt feeding system, which adopts the following technical solutions:

[0006] A cold patch asphalt production system based on a traditional asphalt feeding system, including a mixing tank 1, a mixing tank 2, an agitator, an asphalt pump, a cold patch agent pump, an admixture pump, a manual three-way conversion valve, a pneumatic butterfly valve, a pipeline system, an automatic packaging line, an automatic weighing system and a PLC control system;

[0007] The pipeline system includes an asphalt pipeline, a first discharge pipe, a second discharge pipe and a cold liquid replenishment pipeline;

[0008] Agitators are installed in the mixing tank one and the mixing tank two;

[0009] The asphalt pump is connected to the mixing tank 1 and the mixing tank 2 respectively through the delivery pipeline, the cold replenishment agent pump is connected to the mixing tank 2 through the cold replenishment liquid pipeline, and a manual three-way conversion valve is installed between the asphalt pipeline and the discharge pipe 1;

[0010] The mixing tank 1 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 1, and the mixing tank 2 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 2;

[0011] The PLC control system is electrically connected to the automatic packaging line and the weighing system.

[0012] The connection ends of the discharge pipe 1 and the discharge pipe 2 with the mixing tank 1 and the mixing tank 2 are respectively installed with pneumatic butterfly valves.

[0013] A feeding process for cold patch asphalt based on a traditional asphalt feeding system, wherein the feeding process steps are as follows:

[0014] Step 1: The base asphalt is transported to the weighing system through an asphalt pump for automatic weighing, and then transported to the mixing tank 1;

[0015] Step 2: The additive is transported to the weighing system through the additive pump for automatic weighing, and then transported to the mixing tank 1;

[0016] Step 3: Start the agitator in the mixing tank 1 through the PLC control system to stir automatically. After the base asphalt and the additive are fully stirred and mixed according to the preset weight ratio, the agitator stops working, and the asphalt material is prepared and enters the automatic weighing system for weighing;

[0017] Step 4: By adjusting the manual three-way conversion valve, the asphalt pipeline is connected to the discharge pipe 1 and closed to the mixing tank 2, and the asphalt is transported through the discharge pipe 1 to the automatic packaging system for quantitative packaging;

[0018] Step 5: By adjusting the manual three-way conversion valve, the asphalt pipeline and the discharge pipe 1 are in a closed state, and the asphalt pipeline is in a connected state with the mixing tank 2, and the asphalt is transported to the mixing tank 2 through the asphalt pipeline;

[0019] Step 6: The cold filler is quantitatively metered and delivered to the mixing tank 2 by the cold filler pump, and the delivery is stopped when the set weight is reached;

[0020] Step 7: After the crushed stone is automatically weighed by the weighing system, it is put into the mixing tank 2;

[0021] Step 8. Start the automatic stirring of the agitator in the mixing tank 2 through the PLC control system. After the asphalt material, cold patch agent and crushed stone are fully mixed according to the preset weight ratio, the agitator stops working, and the cold patch asphalt material is obtained and enters the automatic weighing system for weighing, and finally is transported through the discharge pipe 2 to the automatic packaging system for quantitative packaging.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The asphalt production system adds a manual three-way conversion valve to the asphalt pipeline. When producing asphalt, the manual three-way conversion valve can be adjusted so that the asphalt pipeline is in a connected state with the discharge pipe one and in a closed state with the mixing tank two. The produced asphalt is transported to the automatic packaging system for quantitative packaging. When cold patching asphalt, the manual three-way conversion valve can be adjusted so that the asphalt pipeline is in a closed state with the discharge pipe one and in a connected state with the mixing tank two. The asphalt enters the mixing tank two, and cold patch agent, crushed stone and asphalt are added to the mixing tank two for mixing and stirring to obtain cold patch asphalt, which is then transported to the automatic packaging system for quantitative packaging. Compared with the traditional asphalt feeding system, the waste of cold patch asphalt is reduced, the production cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic flow chart of a cold patch asphalt production system and feeding process based on a traditional asphalt feeding system in the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 , the present invention provides the following embodiments:

[0027] Embodiment 1:

[0028] A cold patch asphalt production system based on a traditional asphalt feeding system, including a mixing tank 1, a mixing tank 2, an agitator, an asphalt pump, a cold patch agent pump, an admixture pump, a manual three-way conversion valve, a pneumatic butterfly valve, a pipeline system, an automatic packaging line, an automatic weighing system and a PLC control system;

[0029] The pipeline system includes an asphalt pipeline, a discharge pipe 1, a discharge pipe 2 and a cold liquid replenishment pipeline;

[0030] Agitators are installed in both mixing tank 1 and mixing tank 2;

[0031] The asphalt pump is connected to the mixing tank 1 and the mixing tank 2 respectively, the cold make-up agent pump is connected to the mixing tank 2 through the cold make-up liquid pipeline, and a manual three-way conversion valve is installed between the asphalt pipeline and the discharge pipe 1;

[0032] The mixing tank 1 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 1, and the mixing tank 2 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 2;

[0033] The PLC control system is electrically connected to the automatic packaging line and the weighing system.

[0034] Specifically, the automatic weighing system adopts PLC control technology, and realizes accurate positioning, accurate measurement and data recording of the asphalt and additive weighing process through the computer control system. It collects real-time data through sensors and feeds it back to the computer. It controls the switch of the scale according to the preset programming program to achieve the effect of automatic weighing.

[0035] The connection ends of the discharge pipe 1 and the discharge pipe 2 with the mixing tank 1 and the mixing tank 2 are respectively equipped with pneumatic butterfly valves.

[0036] Specifically, when the materials are fed into the automatic packaging line for packaging, the quantitative measurement of the discharge amount is achieved by using the mixing plant signal to open the outlet pneumatic butterfly valve, which automatically closes when the set amount is reached. The discharge valve can be switched between manual and automatic modes to achieve the purpose of quantitative packaging.

[0037] The asphalt production system adds a manual three-way conversion valve to the asphalt pipeline. When producing asphalt, the manual three-way conversion valve can be adjusted so that the asphalt pipeline is in a connected state with the discharge pipe one and in a closed state with the mixing tank two. The produced asphalt is transported to the automatic packaging system for quantitative packaging. When cold patching asphalt, the manual three-way conversion valve can be adjusted so that the asphalt pipeline is in a closed state with the discharge pipe one and in a connected state with the mixing tank two. The asphalt enters the mixing tank two, and cold patch agent, crushed stone and asphalt are added to the mixing tank two for mixing and stirring to obtain cold patch asphalt, which is then transported to the automatic packaging system for quantitative packaging. Compared with the traditional asphalt feeding system, the waste of cold patch asphalt is reduced, the production cost is reduced, and the production efficiency is improved.

[0038] Embodiment 2: A feeding process of cold patch asphalt based on a traditional asphalt feeding system, wherein the feeding process steps are as follows:

[0039] Step 1: The base asphalt is transported to the weighing system through an asphalt pump for automatic weighing, and then transported to the mixing tank 1;

[0040] Step 2: The additive is transported to the weighing system through the additive pump for automatic weighing, and then transported to the mixing tank 1;

[0041] Step 3: Start the agitator in the mixing tank 1 through the PLC control system to stir automatically. After the base asphalt and the additive are fully stirred and mixed according to the preset weight ratio, the agitator stops working, and the asphalt material is prepared and enters the automatic weighing system for weighing;

[0042] Step 4: By adjusting the manual three-way conversion valve, the asphalt pipeline is connected to the discharge pipe 1 and closed to the mixing tank 2, and the asphalt is transported through the discharge pipe 1 to the automatic packaging system for quantitative packaging;

[0043] Embodiment 3: A feeding process of cold patch asphalt based on a traditional asphalt feeding system, wherein the feeding process steps are as follows:

[0044] Steps 1 to 3 are the same as those in Example 2;

[0045] Step 4: By adjusting the manual three-way conversion valve, the asphalt pipeline and the discharge pipe 1 are in a closed state, and the asphalt pipeline is in a connected state with the mixing tank 2, and the asphalt is transported to the mixing tank 2 through the asphalt pipeline;

[0046] Step 5: The cold filler is quantitatively metered and delivered to the mixing tank 2 by the cold filler pump, and the delivery is stopped when the set weight is reached;

[0047] Step 6: After the crushed stone is automatically weighed by the weighing system, it is put into the mixing tank 2;

[0048] Step seven, start the agitator in the mixing tank two for automatic stirring through the PLC control system. After the asphalt material, cold patch agent and crushed stone are fully mixed according to the preset weight ratio, the agitator stops working, and the cold patch asphalt material is obtained and enters the automatic weighing system for weighing, and finally is transported through the discharge pipe two to the automatic packaging system for quantitative packaging.

[0049] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0050] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cold patch asphalt production system based on a traditional asphalt feeding system, characterized by: Including mixing tank 1, mixing tank 2, agitator, asphalt pump, cold make-up agent pump, admixture pump, manual three-way conversion valve, pneumatic butterfly valve, pipeline system, automatic packaging line, automatic weighing system and PLC control system; The pipeline system includes an asphalt pipeline, a first discharge pipe, a second discharge pipe and a cold liquid replenishment pipeline; Agitators are installed in the mixing tank one and the mixing tank two; The asphalt pump is connected to the mixing tank 1 and the mixing tank 2 respectively, the cold replenishment agent pump is connected to the mixing tank 2 through the cold replenishment liquid pipeline, and a manual three-way conversion valve is installed between the asphalt pipeline and the discharge pipe 1; The mixing tank 1 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 1, and the mixing tank 2 is connected to the automatic packaging line through the asphalt pipeline and the discharge pipe 2; The PLC control system is electrically connected to the automatic packaging line and the weighing system.

2. According to claim 1, a cold patch asphalt production system based on a traditional asphalt feeding system is characterized by: The connection ends of the discharge pipe 1 and the discharge pipe 2 with the mixing tank 1 and the mixing tank 2 are respectively installed with pneumatic butterfly valves.

3. A cold patch asphalt feeding process based on a traditional asphalt feeding system, characterized in that: The cold patch asphalt production system based on the traditional asphalt feeding system as described in claims 1-2, wherein the feeding process steps are as follows: Step 1: The base asphalt is transported to the weighing system through an asphalt pump for automatic weighing, and then transported to the mixing tank 1; Step 2: The additive is transported to the weighing system through the additive pump for automatic weighing, and then transported to the mixing tank 1; Step 3: Start the agitator in the mixing tank 1 through the PLC control system to stir automatically. After the base asphalt and the additive are fully stirred and mixed according to the preset weight ratio, the agitator stops working, and the asphalt material is prepared and enters the automatic weighing system for weighing; Step 4: By adjusting the manual three-way conversion valve, the asphalt pipeline is connected to the discharge pipe 1 and closed to the mixing tank 2, and the asphalt is transported through the discharge pipe 1 to the automatic packaging system for quantitative packaging; Step 5: By adjusting the manual three-way conversion valve, the asphalt pipeline and the discharge pipe 1 are in a closed state, and the asphalt pipeline is in a connected state with the mixing tank 2, and the asphalt is transported to the mixing tank 2 through the asphalt pipeline; Step 6: The cold filler is quantitatively metered and delivered to the mixing tank 2 by the cold filler pump, and the delivery is stopped when the set weight is reached; Step 7: After the crushed stone is automatically weighed by the weighing system, it is put into the mixing tank 2; Step 8. Start the automatic stirring of the agitator in the mixing tank 2 through the PLC control system. After the asphalt material, cold patch agent and crushed stone are fully mixed according to the preset weight ratio, the agitator stops working, and the cold patch asphalt material is obtained and enters the automatic weighing system for weighing, and finally is transported through the discharge pipe 2 to the automatic packaging system for quantitative packaging.

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