Mixing plant production system

Abstract

The utility model relates to the technical field of concrete production, in particular to a mixing plant production system which is provided with an aggregate storage bin, an aggregate pre-cooling bin and a mixing plant in sequence, and links of aggregate preparation, aggregate pre-cooling and aggregate feeding are separately arranged, so that the waiting time of aggregate feeding is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a production system of a mixing plant. Background Art

[0002] A mixing plant is a combined device for centralized mixing of concrete, also known as a concrete prefabrication yard or a concrete mixing plant. Generally, it includes five major component systems, namely a mixing main machine, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. Due to its high degree of mechanization and automation, the productivity is relatively high, which is conducive to ensuring the quality of concrete and saving cement. Mixing plants are commonly used in large and medium-sized water conservancy, electric power, bridge and other projects with large concrete engineering quantities, long construction periods, and concentrated construction sites.

[0003] Concrete is usually made by mixing aggregates such as sand and stone with powders such as cement and mineral powder with water. For the construction of mass concrete, pre-cooled concrete is usually adopted, and its function is to reduce the temperature of the concrete before pouring, so as to reduce the release of hydration heat. Most of the existing aggregate pre-cooling uses a belt conveyor as a carrier to pre-cool the aggregates during the aggregate conveying process, or directly integrates a pre-cooling device at the aggregate storage bin for pre-cooling treatment. When pre-cooling during the belt conveying process, due to the long pre-cooling time, it will affect the belt conveying speed. If the pre-cooling time is short, the pre-cooling effect is poor; when performing integrated pre-cooling treatment at the aggregate storage bin, the aggregates need to wait until the temperature drops to meet the requirements before responding to the mixing demand for feeding. During the feeding process, the aggregate storage bin cannot be used for advance batching, and the feeding process and the batching process affect each other, thus affecting the production efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a production system of a mixing plant, aiming at the problem that the existing production system of the mixing plant either uses a belt conveyor as a carrier to pre-cool the aggregates during the aggregate conveying process, affecting the belt conveying speed, or performs integrated pre-cooling treatment at the aggregate storage bin, and the aggregate storage bin cannot be used for advance batching during the feeding process, thus affecting the production efficiency. By optimizing the layout of the production line, the production efficiency can be improved.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A production system of a mixing plant includes an aggregate storage bin, an aggregate pre-cooling bin and a mixing plant. The aggregate storage bin is connected to the aggregate pre-cooling bin, and the aggregate pre-cooling bin is connected to the mixing plant.

[0007] In the above-mentioned mixing plant production system, the aggregate storage bin is used for aggregate preparation, the aggregate precooling bin is used for precooling treatment, and the mixing plant is used for mixing operations; by separately transporting the aggregates in the aggregate storage bin to another aggregate precooling bin for precooling, and directly transporting the qualified aggregates from the aggregate precooling bin to the mixing plant during the mixing operation, it is possible to still conduct aggregate preparation in the aggregate storage bin during the aggregate precooling period and the mixing feeding period, achieving large-capacity aggregate storage, and the aggregate precooling bin can also promptly respond to the demand for aggregate mixing and feeding during the aggregate preparation period, which is conducive to realizing continuous production.

[0008] In this mixing plant production system, by sequentially arranging an aggregate storage bin, an aggregate precooling bin, and a mixing plant, the aggregate preparation, aggregate precooling, and aggregate feeding links are separated, which is conducive to shortening the waiting time for aggregate feeding and improving production efficiency.

[0009] As a preferred embodiment of the present utility model, there are two rows of the aggregate storage bins, and the number of each row of the aggregate storage bins is several. One row of the aggregate storage bins is used for storing sand, and the other row of the aggregate storage bins is used for storing stones; unloading platforms are respectively arranged on both sides of the two rows of the aggregate storage bins, and the unloading platforms on the opposite sides are interconnected to form a circular road, and at the unloading platform, the aggregates are transported into the respective aggregate storage bins on the corresponding side through several feeding belts. This solution optimizes the site layout, separates the transportation routes of stones and sand, and is conducive to realizing non-backing and non-crossing transportation, which is safe and efficient.

[0010] As a preferred embodiment of the present utility model, an identifier is provided at each feeding point of the unloading platform. The identifier is used to read an identification card, and both the identifier and the feeding belt are communicatively connected to the main control system. The identifier and the identification card are used to verify whether the transportation vehicle matches the current unloading point. Only when the information checked by the identifier and the identification card is correct, the main control system controls the feeding belt to start for automatic transportation, thereby preventing the situation of misloading materials.

[0011] As a preferred embodiment of the present utility model, the feeding port of the aggregate storage bin is arranged at the top of the aggregate storage bin. In each row, a reversible belt conveyor is connected between the feeding ports of every two aggregate storage bins, and each reversible belt conveyor is respectively connected to the unloading platform through an inclined belt conveyor. This is conducive to reducing the setting of conveying devices, reducing investment costs and occupying less space. Among them, the two stone silos connected by the reversible belt conveyor can be used to load the same type of stones or different types of stones.

[0012] As a preferred embodiment of the present utility model, a level gauge is provided in each of the aggregate storage bins, and each of the level gauges and the reversible belt conveyor are communicatively connected to the main control system. The level gauge is used to monitor the material level. According to the detection of the material level in each silo, the forward and reverse rotation of the reversible belt conveyor is controlled to achieve reasonable distribution of the aggregate between different aggregate storage bins.

[0013] As a preferred embodiment of the present utility model, a material conveying corridor is respectively provided at the bottom of each row of the aggregate storage bins. A belt conveying device corresponding to the position of the discharge port of each aggregate storage bin is provided in the material conveying corridor, and the belt conveying device is connected to the aggregate pre-cooling bin through a pre-cooling feeding belt.

[0014] A material conveying corridor is arranged at the bottom of the aggregate storage bin, and the aggregate storage bin is supported by a reinforced concrete structure. Compared with using a steel structure for support, it is more conducive to meeting the requirements of a large reserve capacity and less floor area. Moreover, the aggregate is discharged from the bottom of the aggregate storage bin, so that the aggregate falls onto the belt conveying device inside the material conveying corridor and is then conveyed to the next production process through the pre-cooling feeding belt, which is beneficial to preventing dust.

[0015] As a preferred embodiment of the present utility model, the aggregate pre-cooling bin and the aggregate storage bin are respectively arranged on opposite sides of the unloading platform, and the aggregate pre-cooling bin is symmetrically arranged with respect to the unloading platform, that is, two aggregate pre-cooling bins are provided. The two aggregate pre-cooling bins are both arranged on the opposite side of the unloading platform relative to the aggregate storage bin. Each of the aggregate pre-cooling bins is connected to the belt conveying devices of the front and rear rows of the material conveying corridors through two pre-cooling feeding belts; each aggregate storage bin is provided with two discharge ports, and two belt conveying devices are arranged in parallel in each row of the material conveying corridors. The two discharge ports of each aggregate storage bin respectively correspond to one belt conveying device, and each belt conveying device is correspondingly connected to one pre-cooling feeding belt. In this solution, the aggregate pre-cooling bins are symmetrically arranged on both sides of the unloading platform, and the transportation lines for transporting stones and sand materials are separately arranged at each aggregate pre-cooling bin, which is conducive to pre-cooling a large amount of aggregate, thereby achieving high-efficiency production.

[0016] As a preferred embodiment of the present utility model, two discharge belts are provided at the bottom of the aggregate pre-cooling bin. The discharge belts are vertically arranged relative to the pre-cooling feeding belts. Each discharge belt is connected to a mixing feeding belt, and each mixing feeding belt is connected to a mixing station. The mixing stations are located inside the two symmetrically arranged aggregate pre-cooling bins and on the side of the aggregate pre-cooling bin away from the unloading platform. In this solution, two aggregate pre-cooling areas are separated from the aggregate storage area, and two mixing stations are connected from each aggregate pre-cooling area. A total of four mixing stations are provided. By adopting a tree diagram form to separate and arrange multiple production lines, it is conducive to optimizing the road layout and production process, with high production efficiency and can efficiently respond to production supply requirements.

[0017] As a preferred solution of the present utility model, the aggregate pre-cooling bin includes a plurality of bin bodies, two discharge ports are provided at the bottom of each bin body, a weighing hopper is correspondingly connected to the bottom of each discharge port, a weighing sensor is provided on the weighing hopper, and the discharge belt is arranged below the weighing hopper. In this solution, a weighing hopper is arranged at the discharge port of the aggregate pre-cooling bin to realize the quantitative discharging of the aggregate that meets the temperature requirements. Compared with the method of transporting the aggregate to the transition bin of the mixing plant and then weighing the quantitative aggregate, a large amount of aggregate can be prevented from stagnating on the long conveyor belt, which is more conducive to accurately monitoring the original temperature of the aggregate feeding; compared with the method of arranging the weighing hopper at the bottom of the aggregate storage bin and then performing quantitative pre-cooling, this solution can realize the pre-cooling of a large amount of aggregate, which is more conducive to meeting the needs of continuous production.

[0018] As a preferred solution of the present utility model, the above-mentioned mixing plant production system further includes a pre-station powder tank and a storage tank. The pre-station powder tank is connected to the mixing plant, and the storage tank is connected to the pre-station powder tank. In this solution, the storage tank is used for large-volume preparation and static cooling of the powder, and the pre-station powder tank is used for small-volume storage of the powder that meets the temperature requirements to promptly respond to the powder supply of the mixing plant; in this way, the powder can be promptly supplied when the mixing plant continuously produces multiple batches, without pausing to wait for the powder to cool or be prepared, and the storage tank can promptly supply the powder to the pre-station powder tank.

[0019] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0020] The mixing plant production system provided by the present utility model separately adds an aggregate pre-cooling bin between the aggregate preparation and mixing links for aggregate pre-cooling, which is beneficial to improving the pre-cooling effect, enabling aggregate preparation to be realized simultaneously during the aggregate pre-cooling period or the mixing feeding period, and promptly meeting the aggregate reserve requirements; conversely, after the aggregate preparation, it is not necessary to wait for the overall temperature of the prepared aggregate to drop before responding to the feeding. The aggregate pre-cooling bin can provide the amount of aggregate for multiple batches of mixing. After one-time pre-cooling in the aggregate pre-cooling bin, it can promptly respond to the needs of multiple batches of aggregate mixing and feeding, which is beneficial to realizing continuous production and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural composition diagram of a mixing plant production system in Embodiment 1;

[0022] Figure 2 is a plan layout diagram of a mixing plant production system in Embodiment 1;

[0023] Figure 3 is an elevation view of a mixing plant production system in Embodiment 1;

[0024] Figure 4It is the structural layout diagram at the aggregate storage bin.

[0025] Icons: 1 - Aggregate storage bin; 2 - Aggregate precooling bin; 3 - Mixing plant; 4 - Powder tank in front of the station; 5 - Storage tank; 6 - Discharge platform; 7 - Reversible belt conveyor; 8 - Inclined belt conveyor; 9 - Material conveying corridor; 10 - Belt conveying device; 11 - Precooling feeding belt; 12 - Discharge belt; 13 - Mixing feeding belt. Specific embodiments

[0026] The following will describe the present utility model in detail with reference to the accompanying drawings.

[0027] In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] Embodiment 1

[0029] A mixing plant production system, as Figures 1 - 4 shown, includes an aggregate storage bin 1, an aggregate precooling bin 2 and a mixing plant 3. The aggregate storage bin 1 is connected to the aggregate precooling bin 2, and the aggregate precooling bin 2 is connected to the mixing plant 3.

[0030] In the above mixing plant production system, the aggregate storage bin 1 is used for aggregate preparation, the aggregate precooling bin 2 is used for precooling treatment, and the mixing plant 3 is used for mixing operations; by separately conveying the aggregates in the aggregate storage bin 1 to another aggregate precooling bin 2 for precooling, and directly conveying the qualified aggregates from the aggregate precooling bin 2 to the mixing plant 3 during mixing operations, it is possible to still carry out aggregate preparation in the aggregate storage bin 1 during the aggregate precooling period and the mixing feeding period, realizing large - storage reserve of aggregates, and the aggregate precooling bin 2 can also promptly respond to the demand for aggregate mixing feeding during the aggregate preparation period, which is conducive to realizing continuous production.

[0031] Specifically, in this embodiment, as Figure 2 、 Figure 4As shown in the figure, there are two rows of aggregate storage bins 1, and the number of aggregate storage bins 1 in each row is several. One row of aggregate storage bins 1 is used to store sand, and the other row of aggregate storage bins 1 is used to store stone; unloading platforms 6 are respectively arranged on both sides of the two rows of aggregate storage bins 1, and the main road is used to connect the opposite unloading platforms 6 to form a circular road, and the area surrounded by the circular road is used as the aggregate storage area as a whole; several unloading points are set at the unloading platforms 6, and at each unloading point, the aggregate is transported to the corresponding aggregate storage bins 1 on the corresponding side for storage through a feeding belt; an identifier is also provided at each unloading point, and the identifier is used to read the identification card, and the production information is written in the identification card and carried by the driver. The identifier and the feeding belt are both connected to the main control system. The identifier and the identification card are used to verify whether the transport vehicle and the current unloading point match. Only when the information checked by the identifier and the identification card is correct, the main control system controls the feeding belt to start to realize automatic transportation, so as to prevent the situation of loading the wrong material. This solution separates the stone transportation route and the sand transportation route, which is beneficial to optimizing the site layout, realizing non-reversing and non-crossing transportation, and safe and efficient feeding. Further, in this embodiment, it is preferably to set six high-capacity closed silos in the first row for storing stone. Every two silos store the same type of stone, namely large stone (particle size 40-80mm), medium stone (particle size 20-40mm), and small stone (particle size 5-20mm). In the second row, it is preferably to set four high-capacity closed silos for storing sand. Each aggregate storage bin 1 is provided with an inlet at the top and two discharge ports at the bottom. The aggregate storage bins 1 are arranged in alignment in sequence, and the arrangement direction of the discharge ports is the same. To reduce the site occupation, a reversible belt conveyor 7 is connected between the inlets of every two aggregate storage bins 1, and each reversible belt conveyor 7 is respectively connected to the unloading platform 6 through an inclined belt conveyor 8. This is beneficial to reducing the setting of conveying devices and lowering the investment cost. A radar level gauge is installed in each aggregate storage bin 1 to monitor the material level. Each level gauge and the reversible belt conveyor 7 are both connected to the main control system. According to the detection of the material levels in each silo, the forward and reverse rotation of the reversible belt conveyor 7 is controlled to realize reasonable distribution of the stockpiling quantity.

[0032] As Figure 3 、 Figure 4As shown in the figure, a feeding corridor 9 is provided at the bottom of each row of aggregate storage silos 1. The feeding corridor 9 is made of reinforced concrete structure, which has a high bearing strength and is conducive to meeting the large-volume storage requirements of the silos. The top of the feeding corridor 9 is basically flush with the ground elevation. An opening adapted to the side of the conical hopper at the bottom of the aggregate storage silo 1 is integrally provided at the top of the feeding corridor 9, and the feeding port extends into the feeding corridor 9 through the opening. A belt conveyor 10 corresponding to the position of the feeding port of each aggregate storage silo 1 is provided in the feeding corridor 9, and the belt conveyor 10 is connected to the aggregate precooling silo 2 through a precooling feeding belt 11. Further, in this embodiment, foundation pits are provided at both ends of the feeding corridor 9 for arranging the precooling feeding belt 11 obliquely, which is convenient for the bottom end of the precooling feeding belt 11 to be lapped below the belt conveyor 10, so that the aggregate is conveyed to the precooling feeding belt 11 through the belt conveyor 10 and then conveyed to the next production process, and the dust is also small in this way.

[0033] Further, in this embodiment, as Figure 2 shown in the figure, the aggregate precooling silo 2 and the aggregate storage silo 1 are respectively arranged on opposite sides of the unloading platform 6, and the aggregate precooling silo 2 is symmetrically arranged with respect to the unloading platform 6, that is, two aggregate precooling silos 2 are provided. Both of the two aggregate precooling silos 2 are arranged on the opposite side of the unloading platform 6 relative to the aggregate storage silo 1. Each aggregate precooling silo 2 is connected to the belt conveyors 10 of the front and rear rows of feeding corridors 9 through two precooling feeding belts 11. The two belt conveyors 10 in each feeding corridor 9 are respectively connected to the precooling feeding belt 11 from left to right, and the stone / sand materials are respectively transported to the aggregate precooling silo 2 for precooling treatment. In this scheme, the aggregate precooling silos 2 are symmetrically arranged on both sides of the unloading platform 6, and the transportation lines for transporting stones and sand materials are separately arranged at each aggregate precooling silo 2, which is conducive to precooling large-volume aggregates, so as to achieve efficient production. By controlling the discharge valves of each aggregate storage silo 1, the sequential transportation of different types of aggregates is realized.

[0034] Four bins are linearly arranged at the aggregate pre-cooling bin 2, which are respectively used to store large stones, medium stones, small stones and sand. The bins are separated by partitions; each bin is provided with a feed inlet at the top and two discharge outlets at the bottom. The feed inlet of the sand pre-cooling bin is correspondingly connected to the transport line for transporting sand alone, and the transport line for transporting stones transfers different types of stones to the corresponding pre-cooling bin bodies in turn through a turning door. A weighing hopper is correspondingly connected to the bottom of each discharge outlet, and the weighing hopper is connected to the fixed support through a tension weighing sensor. Two discharge belts 12 are arranged at the bottom of the aggregate pre-cooling bin 2. The discharge belts 12 correspond to the positions of the bins. The discharge belts 12 are located below the weighing hoppers. The discharge belts 12 are vertically arranged relative to the pre-cooling feeding belt 11. The discharge end of each discharge belt 12 is connected to a mixing feeding belt 13, and each mixing feeding belt 13 is connected to the mixing station 3. In this solution, a weighing hopper is arranged at the discharge outlet of the aggregate pre-cooling bin 2 to realize the quantitative discharging of the aggregate meeting the temperature requirements. Compared with the method of transporting the aggregate to the transition bin of the mixing station 3 and then weighing the quantitative aggregate, a large amount of aggregate can be prevented from stagnating on the long transport belt, which is more conducive to accurately monitoring the original temperature of the aggregate feeding; compared with the method of setting the weighing hopper at the bottom of the aggregate storage bin 1 and then performing quantitative pre-cooling, this solution can realize the pre-cooling of a large amount of aggregate, which is more conducive to meeting the needs of continuous production.

[0035] In this embodiment, four mixing stations 3 are arranged. The mixing stations 3 are located inside the two symmetrically arranged aggregate pre-cooling bins 2 and on the side of the aggregate pre-cooling bins 2 away from the unloading platform 6. In this solution, two aggregate pre-cooling areas are differentiated from the aggregate storage area, and two mixing stations 3 are connected from each aggregate pre-cooling area. By adopting a tree diagram form to differentiate and arrange multiple production lines, it is beneficial to optimize the road layout and production process, with high production efficiency and can efficiently respond to production supply demands.

[0036] Furthermore, the above-mentioned mixing plant production system further includes a plurality of pre-station powder silos 4 and a plurality of storage silos 5 for classifying and storing powders such as mineral powder, fly ash, and cement. The pre-station powder silos 4 are connected to the mixing plant 3 through screw conveyors, and the storage silos 5 are connected to the corresponding pre-station powder silos 4 of the corresponding types of powders through bin pumps. In this solution, the storage silos 5 are used for large-volume preparation and static cooling of powders, and the pre-station powder silos 4 are used for small-volume storage of powders that meet the temperature requirements to promptly respond to the powder supply of the mixing plant 3. In this way, when the mixing plant 3 continuously produces multiple batches, the powder can be supplied in a timely manner without pausing to wait for the powder to cool or be prepared. The storage silos 5 can supply the powder to the pre-station powder silos 4 in a timely manner. Radar level gauges are also installed in both the pre-station powder silos 4 and the storage silos 5. When the level gauge in the pre-station powder silo 4 shows a situation of insufficient material level, it is replenished through the corresponding storage silo 5. When the level gauge in the storage silo 5 shows insufficient material level, an early warning is given or a transport vehicle is notified to prepare the materials. Identifiers are also correspondingly installed at each storage silo 5 to check whether the transport vehicle matches the current unloading point.

[0037] Furthermore, embedded temperature sensors are provided at the bottoms of each bin of the pre-station powder silo 4 and the aggregate pre-cooling bin 2. The temperature sensors are communicatively connected to the main control system to remotely judge whether the aggregate or powder has reached the specified temperature according to the detection of the temperature sensors, so as to facilitate the execution of the next process instruction. It is also possible to provide data support for the production of pre-cooled concrete through the detected temperature of the raw material feeding, which is conducive to ensuring the quality of concrete pouring.

[0038] Furthermore, the above-mentioned mixing plant production system further includes a sewage treatment system, a vehicle navigation and identification system, an electric power distribution system, and a dispatching management system to ensure the normal operation of the mixing plant 3.

[0039] In the mixing plant production system of this embodiment, the aggregate preparation, aggregate pre-cooling, and aggregate feeding links are separately arranged. A storage silo 5 is added for early preparation and static cooling of the materials. The entire factory area is divided into functional areas such as a sand and gravel storage area, a powder and ash storage area, an aggregate pre-cooling area, an electric power distribution area, a sewage and waste treatment area, and a production and mixing area. After fully considering the cooperation of each functional area, four production lines are symmetrically arranged, and a circular main road is set up. Special entrances and lanes are set for aggregates, powders, and concrete transport vehicles. After the vehicles enter the factory, they drive according to the road signs and navigation instructions, without reversing, without crossing, safely and efficiently, forming an optimal functional area division, which not only has a small floor area but also can ensure the efficient operation of the mixing plant 3.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mixing plant production system, characterized in that, It includes an aggregate storage bin (1), an aggregate precooling bin (2) and a mixing plant (3). The aggregate storage bin (1) is connected to the aggregate precooling bin (2), and the aggregate precooling bin (2) is connected to the mixing plant (3). The aggregate storage bin (1) is provided with two rows, and the number of the aggregate storage bins (1) in each row is several. The bottom of each row of the aggregate storage bins (1) is respectively provided with a feeding corridor (9), and a belt conveyor (10) corresponding to the discharging opening position of each aggregate storage bin (1) is arranged in each feeding corridor (9). The aggregate precooling bin (2) and the aggregate storage bin (1) are arranged on the opposite sides of the discharging platform (6), and the aggregate precooling bin (2) is symmetrically arranged with respect to the discharging platform (6). Each aggregate precooling bin (2) is connected to the belt conveyors (10) in the front and rear two rows of the feeding corridors (9) through two precooling feeding belts (11). Each aggregate storage bin (1) is provided with two discharging openings. Two belt conveyors (10) are arranged in parallel in each row of the feeding corridors (9). The two discharging openings of each aggregate storage bin (1) respectively correspond to one belt conveyor (10), and each belt conveyor (10) is correspondingly connected to one precooling feeding belt (11).

2. The mixing plant production system according to claim 1, characterized in that, One row of the aggregate storage bins (1) is used for storing sand, and the other row of the aggregate storage bins (1) is used for storing stones. Discharging platforms (6) are respectively arranged on both sides of the two rows of the aggregate storage bins (1). The discharging platforms (6) on the opposite sides are communicated with each other to form a circular road. At the discharging platform (6), several feeding belts are used to transport aggregates into the corresponding aggregate storage bins (1) on each side.

3. The mixing plant production system according to claim 2, characterized in that, Identifiers are arranged at each feeding point of the discharging platform (6). The identifiers are used to read identification cards, and the identifiers and the feeding belts are both communicatively connected to the main control system.

4. The mixing plant production system according to claim 2, characterized in that, The feeding opening of the aggregate storage bin (1) is arranged at the top of the aggregate storage bin (1). In each row, a reversible belt conveyor (7) is connected between the feeding openings of every two aggregate storage bins (1), and each reversible belt conveyor (7) is respectively connected to the discharging platform (6) through an inclined belt conveyor (8).

5. The mixing plant production system according to claim 4, characterized in that, Each aggregate storage bin (1) is provided with a level gauge, and each level gauge and the reversible belt conveyor (7) are both communicatively connected to the main control system.

6. The mixing plant production system according to claim 1, characterized in that, Two discharging belts (12) are arranged at the bottom of the aggregate precooling bin (2). The discharging belts (12) are vertically arranged with respect to the precooling feeding belts (11). Each discharging belt (12) is connected to a mixing feeding belt (13), and each mixing feeding belt (13) is connected to a mixing plant (3). The mixing plant (3) is located inside the two symmetrically arranged aggregate precooling bins (2) and on the side of the aggregate precooling bin (2) away from the discharging platform (6).

7. The mixing plant production system according to claim 6, characterized in that, The aggregate pre-cooling bin (2) includes several bins, and two discharge openings are provided at the bottom of each bin. A weighing hopper is correspondingly connected to the bottom of each discharge opening, a weighing sensor is provided on the weighing hopper, and the discharge belt (12) is arranged below the weighing hopper.

8. The mixing plant production system according to any one of claims 1-7, characterized in that, It further includes a storage tank (5) and a pre-station powder tank (4). The mixing plant is connected to the pre-station powder tank (4), and the storage tank (5) is connected to the pre-station powder tank (4).

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