Concrete mixing plant constructed by utilizing waste slag field
By constructing a stepped concrete mixing plant at the spoil disposal site, the problem of the difficulty in setting up mixing plants in mountainous areas has been solved, construction and operation costs have been reduced, equipment operating efficiency and safety have been improved, and the effective utilization of the spoil disposal site and environmental protection have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD ENG CO LTD OF CCCC FOURTH HARBOR ENG
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-01
AI Technical Summary
Existing concrete mixing plants are difficult to set up in mountainous areas, have high construction and operating costs, their waste disposal sites are not effectively utilized, and their equipment operating efficiency is low, posing safety risks.
The spoil disposal site is constructed in a stepped manner, with silos, feeding hoppers and mixing hosts installed to reduce earth and rock excavation, lower equipment height differences and motor power. The stepped structure has good stability and is covered with soil and revegetated.
It reduces construction and operating costs, improves equipment operating efficiency and safety, reduces failure rate and energy consumption, and avoids the environmental impact of large-scale earth and rock excavation.
Smart Images
Figure CN224183400U_ABST
Abstract
Description
A concrete mixing plant constructed using a spoil disposal site Technical Field
[0001] This utility model relates to the field of civil engineering, and in particular to a concrete mixing plant constructed using a waste disposal site. Background Technology
[0002] Constructing large-scale building structures in mountainous areas, such as bridges, tunnels, dams, and locks, requires a large amount of concrete materials. This necessitates setting up concrete mixing plants near the project site. Typically, a mixing plant site is divided into five functional areas: the mixing plant production area, sand and gravel silos and preparation area, laboratory, living quarters for mixing plant personnel, and power distribution room. The mixing plant is laid out in a plan.
[0003] However, in mountainous and hilly areas, it is difficult to find suitable flat land near the project site for setting up a mixing plant. In addition, waste slag, rocks and other waste generated during the excavation process need to be disposed of in designated areas, namely spoil heaps. Spoil heaps are usually not directly usable, and after disposal, vegetation restoration is carried out to reduce soil erosion and promote ecological restoration.
[0004] As shown in Figure 1, in the existing concrete mixing plant, the silo 1, feeding hopper 2, mixing host 3, and powder tank are installed on the same level ground. The silo 1 stores concrete aggregates, which need to be added to the feeding hopper 2 by a loader 11. There is a large height difference between the silo 1 and the feeding port of the feeding hopper 2. The feeding ramp 21 is poured adjacent to the feeding hopper 2. After loading the aggregates, the loader 11 lifts the loading hopper to a sufficient height and then puts the aggregates into the feeding ramp 21. Moreover, the loader 11 needs to frequently step on the brake and accelerator during the feeding process on the feeding ramp 21, resulting in a high failure rate of the loader 11 and certain safety risks. In addition, there is also a large height difference between the discharge port of the feeding hopper 2 and the inlet of the mixing host 3. The aggregates are transported by a belt conveyor 31 with a large inclination angle, which requires a high-power motor for the belt conveyor 31.
[0005] It can be seen that existing concrete mixing plants located on flat ground at the same elevation have low efficiency in aggregate transfer and conveying, high equipment power, and high costs. In mountainous areas, there may not be suitable flat ground, and large-scale earth and rock excavation is often required to create suitable flat ground for concrete mixing plants, which further increases costs. Summary of the Invention
[0006] The purpose of this utility model is to address the problems of existing concrete mixing plants located on flat ground at the same elevation being unsuitable for mountainous projects, having high construction and operating costs, and not effectively utilizing the spoil heaps excavated in the early stages of mountainous projects. This utility model provides a concrete mixing plant constructed using spoil heaps.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A concrete mixing plant constructed using a spoil heap, wherein the spoil heap is constructed in a stepped manner and the surface is reinforced, the spoil heap comprising a first step, a second step and a base that are set down in sequence;
[0009] A hopper is installed on the first step, and a loader is installed inside the hopper;
[0010] A feeding funnel is provided on the second step, and the top surface of the feeding funnel is close to the platform surface of the first step;
[0011] A mixing host is installed on the substrate, and the mixing host and the feeding hopper are connected by a belt conveyor.
[0012] The concrete mixing plant constructed using a waste disposal site, as described in this utility model, utilizes the waste disposal site for its foundation. The waste disposal site is constructed in a stepped manner, eliminating the need for large-scale excavation to create a level surface, thus reducing construction costs. The first step brings the working plane of the loader closer to the top surface of the feeding hopper, eliminating the need for a feeding ramp between the feeding hopper and the hopper. This also eliminates the need for the loader to lift the bucket high and climb the slope, reducing fuel consumption, failure rate, damage rate of spare parts (brakes, accelerator, tires), safety risks, and construction costs. The second step reduces the height difference between the discharge port of the feeding hopper and the inlet of the mixing host. As shown in Figures 1 and 2, the inclination of the belt conveyor is reduced, allowing for lower motor power and cost savings. After the mixing plant is dismantled, only the end face of the steps needs to be sloped, and the waste disposal site needs to be covered with soil and revegetated. The stepped structure has good stability, and prior reinforcement effectively reduces secondary disasters caused by the waste disposal site.
[0013] As a preferred embodiment of this invention, the top surface of the feeding funnel is flush with the platform surface of the first step.
[0014] As a preferred technical solution of this utility model, a first retaining wall is provided on the end face of the first step.
[0015] As a preferred technical solution of this utility model, a second retaining wall is provided on the end face of the second step.
[0016] As a preferred technical solution of this utility model, the silo is provided with at least one partition wall, which divides the silo into several compartments, and the front end of each compartment is provided with a working passage.
[0017] As a preferred technical solution of this utility model, the silo is equipped with a spraying device.
[0018] As a preferred technical solution of this utility model, a powder tank is provided on the substrate, and the powder tank is connected to the mixing host.
[0019] As a preferred technical solution of this utility model, a water chiller is provided on the substrate, and the water chiller is connected to the stirring host.
[0020] As a preferred technical solution of this utility model, a test chamber is provided on the substrate or the first step.
[0021] As a preferred technical solution of this utility model, a power distribution room is provided on the base or the first step.
[0022] As a preferred technical solution of this utility model, a living area for personnel is provided on the base and / or the first step.
[0023] As a preferred technical solution of this utility model, the concrete mixing plant constructed using the waste disposal site also includes a sloping road, which connects the base and the first step.
[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0025] 1. The concrete mixing plant constructed using a waste disposal site according to this utility model utilizes the waste disposal site for its foundation and constructs the waste disposal site in a stepped manner, which eliminates the need for large-scale excavation of earth and stone to form a flat area, thus reducing construction costs; after the mixing plant is removed, it is only necessary to slope the end face of the steps and cover the waste disposal site with soil and revegetate it. The stepped structure has good stability and has been reinforced in the early stage, which effectively reduces secondary disasters caused by the waste disposal site;
[0026] 2. The concrete mixing plant constructed using a waste disposal site according to this utility model uses the first step to bring the working plane of the loader close to the top surface of the feeding hopper, eliminating the need to set up a feeding ramp between the feeding hopper and the silo. When the loader is feeding, it does not need to lift the loading bucket high to climb the slope, which reduces fuel consumption, failure rate, damage rate of spare parts (brakes, accelerator, tires), safety risks and construction costs.
[0027] 3. The concrete mixing plant constructed using a waste disposal site described in this utility model reduces the height difference between the discharge port of the feeding hopper and the inlet of the mixing host by using the second step. As can be seen from Figures 1 and 2, the inclination of the belt conveyor is reduced, the required motor power can be reduced, and costs are saved. Attached Figure Description
[0028] Figure 1 is an elevation view of the layout of a concrete mixing plant in the prior art;
[0029] Figure 2 is an elevation view of the concrete mixing plant constructed using the spoil disposal site in this application.
[0030] Marked in the image:
[0031] 1-Hopper, 11-Loader, 12-Partition wall, 13-Work passage;
[0032] 2-Feeding funnel, 21-Feeding ramp;
[0033] 3-Agitator, 31-Belt conveyor, 32-Water cooler;
[0034] 4-First step, 41-First retaining wall;
[0035] 5-Second step, 51-Second retaining wall. Detailed Implementation
[0036] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0037] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0038] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0039] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0040] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0041] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0042] In a related technology, a certain mountainous engineering project has a concrete pouring volume of 396,000 m³, which is a large volume. Most of the concrete uses a three-grade mix design. In addition, most of the concrete in the project is of large volume, which requires strict temperature control. The project has a spoil heap formed during the early excavation. The spoil heap has an elevation of 245m above ground and 234m below ground, with an elevation difference of 11m. If the traditional concrete mixing plant layout shown in Figure 1 is adopted, and the equipment such as the silo 1, the feeding funnel 2, the mixing host 3 and the powder tank are installed on the same level ground, it is necessary to excavate 11m of soil and rock, which increases the earthwork excavation volume by about 46,000 m³, thus increasing the cost. In traditional mixing plants, concrete aggregates are stored in silo 1. A loader 11 is used to load the aggregates from silo 1 into a feeding hopper 2. There is a significant height difference between silo 1 and the feeding inlet of the feeding hopper 2. A feeding ramp 21 is poured adjacent to the feeding hopper 2. After loading the aggregates, the loader 11 lifts the hopper to a sufficient height before placing the aggregates into the feeding ramp 21. Furthermore, the loader 11 needs to frequently apply the brakes and accelerator during the feeding process on the feeding ramp 21, resulting in a high failure rate and certain safety risks. Additionally, there is a significant height difference between the discharge outlet of the feeding hopper 2 and the inlet of the mixing host 3. The aggregates are transported via a belt conveyor 31 with a large inclination angle, requiring a high-power motor and increasing costs. Therefore, the technical solution of this application was developed, which will be described below with reference to Figure 2.
[0043] Example 1
[0044] As shown in Figure 2, the present invention describes a concrete mixing plant constructed using a waste disposal site. The waste disposal site is constructed in a stepped manner and its surface is reinforced. The waste disposal site includes a first step 4, a second step 5, and a base that are set down sequentially. The base has an elevation of 234m, and the first step 4 has an elevation of 245m.
[0045] A hopper 1 is provided on the first step 4, and a feeding funnel 2 is provided on the second step 5. A mixing host 3, a powder tank and a water chiller 32 are provided on the base. The powder tank and the water chiller 32 are respectively connected to the mixing host 3. A first baffle 41 is provided on the end face of the first step 4, and a second baffle 51 is provided on the end face of the second step 5 for end face protection.
[0046] The silo 1 is provided with at least one partition wall 12, which divides the silo 1 into several compartments. The front end of each compartment is provided with a working channel 13. The loader 11 operates between the working channel 13 and the compartments, adding the aggregate in the compartments to the feeding hopper 2. The silo 1 is provided with a spraying device to spray and cool the aggregate therein. The top surface of the feeding hopper 2 is close to the platform of the first step 4, preferably the top surface of the feeding hopper 2 is flush with the platform of the first step 4. The mixing host 3 and the feeding hopper 2 are connected by a belt conveyor 31.
[0047] In some alternative embodiments, a laboratory is provided on the base or the first step 4, a power distribution room is provided on the base or the first step 4, and a personnel living area is provided on the base and / or the first step 4.
[0048] In some alternative embodiments, the concrete mixing plant constructed using the spoil heap also includes a ramp road connecting the base and the first step 4, facilitating the movement of personnel and vehicles between the two elevation sites.
[0049] The concrete mixing plant constructed using a spoil heap described in this embodiment utilizes the spoil heap for its foundation. Furthermore, the spoil heap is constructed in a stepped manner, eliminating the need for large-scale earth and rock excavation to create a flat area. This saves approximately 46,000 m³ of earth and rock excavation, thereby reducing construction costs.
[0050] The concrete mixing plant constructed using a waste disposal site described in this embodiment uses the first step 4 to bring the working plane of the loader 11 close to the top surface of the feeding hopper 2, eliminating the need for a feeding ramp 21 between the feeding hopper 2 and the silo 1. During the subsequent production of 396,000 m³ of concrete, the loader 11 does not need to lift the loading bucket high to climb the ramp, reducing fuel consumption, failure rate, damage rate of spare parts (brakes, accelerator, tires), safety risks, and construction costs, thereby improving production efficiency and reducing concrete production costs.
[0051] The concrete mixing plant constructed using a waste disposal site described in this embodiment reduces the height difference between the discharge port of the feeding hopper 2 and the inlet of the mixing host 3 by using the second step 5. As can be seen from Figures 1 and 2, the inclination of the belt conveyor 31 is reduced, which can reduce the required motor power and save costs.
[0052] The concrete mixing plant constructed using a spoil heap described in this embodiment is designed according to local conditions. After the mixing plant is removed, only the end face of the steps needs to be sloped, and the spoil heap needs to be covered with soil and revegetated. The step structure has good stability and has been reinforced in the early stage, which effectively reduces the secondary disasters caused by the spoil heap.
[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A concrete mixing plant constructed using a spoil heap, characterized in that, The waste disposal site is constructed in a stepped manner and has a surface reinforced. The waste disposal site includes a first step (4), a second step (5), and a base arranged in sequence and decreasing in height. A hopper (1) is set on the first step (4), and a loader (11) is installed in the hopper (1). A feeding hopper (2) is set on the second step (5), and the top surface of the feeding hopper (2) is close to the platform of the first step (4). A mixing host (3) is set on the base, and the mixing host (3) and the feeding hopper (2) are connected by a belt conveyor (31).
2. The concrete mixing plant constructed using a spoil heap as described in claim 1, characterized in that, The top surface of the feeding funnel (2) is flush with the platform surface of the first step (4).
3. The concrete mixing plant constructed using a spoil heap as described in claim 1, characterized in that, The end face of the first step (4) is provided with a first retaining wall (41).
4. The concrete mixing plant constructed using a spoil heap as described in claim 1, characterized in that, The end face of the second step (5) is provided with a second retaining wall (51).
5. The concrete mixing plant constructed using a spoil heap as described in claim 1, characterized in that, The silo (1) is provided with at least one partition wall (12), which divides the silo (1) into several compartments, and the front end of each compartment is provided with a working passage (13).
6. The concrete mixing plant constructed using a spoil heap according to claim 1, characterized in that, The silo (1) is equipped with a spraying device.
7. The concrete mixing plant constructed using a spoil heap according to claim 1, characterized in that, The base is provided with a powder tank and a water chiller (32), and the powder tank and the water chiller (32) are respectively connected to the mixing host (3).
8. The concrete mixing plant constructed using a spoil heap according to claim 1, characterized in that, A test chamber is provided on the base or the first step (4); a power distribution room is provided on the base or the first step (4).
9. The concrete mixing plant constructed using a spoil heap according to claim 1, characterized in that, A living area for personnel is provided on the base and / or the first step (4).
10. The concrete mixing plant constructed using a spoil heap according to claim 1, characterized in that, It also includes a ramp road that connects the base and the first step (4).