Limestone tailing soil treatment system
The limestone tailings soil treatment system utilizes sand washing, screening, and sedimentation components to treat tailings, solving the problems of heavy metal pollution and pH levels in the tailings soil. This achieves ecological restoration and resource reuse, resulting in an economically efficient and environmentally friendly outcome.
Patent Information
- Application Number
- CN202422925579.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The tailings soil produced by limestone mining contains high concentrations of heavy metal ions, has an imbalanced pH, and is lacking in organic matter. It accumulates and occupies land and pollutes the environment. Traditional treatment methods are inefficient, energy-intensive, and environmentally unfriendly.
A limestone tailings soil treatment system was designed, including components such as sand washing and screening, sedimentation, treatment and backfilling. The tailings are treated by equipment such as spiral sand washing machine, crusher, and drum sand washing machine to separate mud and water, adjust pH, solidify heavy metals and add organic matter, and finally achieve ecological restoration.
It has achieved efficient tailings treatment, produced reusable building materials, restored damaged mine ecosystems, and achieved a balance between economic benefits and environmental protection.
Smart Images
Figure CN223833087U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stone tailings treatment technology, and in particular relates to a limestone tailings soil treatment system. Background Technology
[0002] During limestone mining, a large amount of tailings soil is generated. These tailings soils often contain high concentrations of heavy metal ions, have acid-base imbalances, and lack organic matter. Moreover, the accumulation of tailings not only occupies land resources but may also pollute the surrounding ecological environment. Traditional treatment methods are often to discard them directly or to treat them simply, which has many drawbacks such as low efficiency, high energy consumption, poor environmental performance, long treatment cycle, and unsatisfactory restoration results.
[0003] Therefore, it is particularly important to develop an efficient, economical, and environmentally friendly limestone tailings treatment system and technology. Utility Model Content
[0004] The purpose of this invention is to provide a limestone tailings soil treatment system to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a limestone tailings soil treatment system, comprising:
[0006] The first sand washing and screening assembly is used to receive limestone tailings and perform the first sand washing and the first vibrating screen, and to produce a mixture of mud, sand and stone.
[0007] The processing component is connected to the first sand washing and screening component and is used to receive the mud and water generated by the first sand washing and screening component and perform first sedimentation, second sedimentation, first treatment, second treatment, third treatment and fourth treatment, and generate recycled water after the second sedimentation.
[0008] A preparation component is connected to the first sand washing and screening component, and the preparation component is used to generate a first product;
[0009] The second sand washing and screening component is connected to the preparation component, and the second sand washing and screening component is used to generate the second product and the third product.
[0010] A water storage tank is connected to the processing component, the first sand washing and screening component, and the second sand washing and screening component. The water storage tank is used to store recycled water and circulate it to the first sand washing and screening component and the second sand washing and screening component.
[0011] A further embodiment of this utility model is that the first sand washing and screening component includes a spiral sand washing machine and a first screening machine. The spiral sand washing machine is used to receive limestone tailings and is connected to a water storage tank and the first screening machine. Some of the material produced by the spiral sand washing machine enters the first screening machine and is screened by vibration to form a mixture of mud, sand and stone. The spiral sand washing machine also produces mud water.
[0012] A further embodiment of this utility model is that the preparation components include a crusher and a sand making machine, the stone mixture includes large stones and fine stones, the crusher is used to crush the large stones and produce sand and gravel, and the sand making machine is used to process the fine stones to produce sand and gravel, and the first product is sand and gravel.
[0013] A further embodiment of this utility model is that the second sand washing and screening component includes a drum sand washing machine and a second screening machine. The drum sand washing machine is used to receive sand and gravel for washing. The second screening machine is connected to the drum sand washing machine, and the second screening machine produces manufactured sand and crushed stone sand through vibrating screen. The second product is manufactured sand, and the third product is crushed stone sand.
[0014] A further embodiment of this utility model is that the processing component includes a first sedimentation tank, a second sedimentation tank, and a mud-water separator. The first sedimentation tank is used to receive mud and water for the first sedimentation. The mud-water separator is connected to the first sedimentation tank to separate the mud and water and produce recycled water and soil. The second sedimentation tank is used to perform a second sedimentation on the recycled water. The processing component also includes a processing zone and a backfilling zone. The processing zone is connected to the mud-water separator. The processing zone is used for the first, second, and third processing. The backfilling zone is connected to the processing zone for the fourth processing.
[0015] A further embodiment of this utility model is that the first treatment includes pH adjustment by a pH adjustment device, the second treatment includes heavy metal curing by a curing device, the third treatment includes adding organic matter and microorganisms by an organic addition device, and the fourth treatment is backfilling and covering by a backfilling device.
[0016] A further embodiment of this utility model is that the drum sand washing machine is used to generate a portion of the muddy water and pass it into the first sedimentation tank.
[0017] The beneficial effects of this utility model are:
[0018] This treatment system uses limestone tailings from abandoned construction waste as raw material. The first washing and screening component processes the material to produce a mixture of mud, sand, and stone. A preparation component then processes the stone mixture to form aggregate. The second washing and screening component washes and vibrates the sand to produce manufactured sand and crushed stone, which can be sold again as building materials, achieving a balance between income and expenditure in the restoration process. The treatment components perform first and second sedimentation of the mud and water, and adjust the pH of the material, solidify heavy metals, and add organic matter and microorganisms. The resulting material is then backfilled onto the damaged mine surface for reclamation, achieving ecological restoration and soil improvement. The recycled water undergoes a second sedimentation and is stored in a reservoir, which is then circulated to the first washing and screening component, enabling water reuse. This treatment system is highly efficient, economical, environmentally friendly, and sustainable. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the components of this utility model. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0021] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0022] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0023] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0024] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0025] like Figure 1 This embodiment provides a limestone tailings soil treatment system, including:
[0026] The first sand washing and screening component is used to receive limestone tailings 1 from construction waste and perform the first sand washing and the first vibrating screen, and produce mud water 2, mud sand 3 and stone mixture material.
[0027] The processing component is connected to the first sand washing and screening component and is used to receive the mud and water 2 generated by the first sand washing and screening component and perform first sedimentation, second sedimentation, first treatment, second treatment, third treatment and fourth treatment, and generate recycled water 4 after the second sedimentation.
[0028] A preparation component is connected to the first sand washing and screening component, and the preparation component is used to generate a first product;
[0029] The second sand washing and screening component is connected to the preparation component, and the second sand washing and screening component is used to generate the second product and the third product.
[0030] The water storage tank 5 is connected to the processing component, the first sand washing and screening component, and the second sand washing and screening component. The water storage tank 5 is used to store the recycled water 4 and circulate it to the first sand washing and screening component and the second sand washing and screening component.
[0031] In this embodiment, the first sand washing and screening assembly further includes a spiral sand washing machine 6 and a first screening machine 7. The spiral sand washing machine 6 is used to receive limestone tailings 1 and is connected to the water storage tank 5 and the first screening machine 7. Some of the material produced by the spiral sand washing machine 6 enters the first screening machine 7 and is screened by vibrating screen to form a mixture of mud and sand 3 and stone. The spiral sand washing machine 6 also produces mud water 2.
[0032] In this embodiment, the preparation components further include a crusher 8 and a sand making machine 9. The stone mixture includes large stones 10 and fine stones 11. The crusher 8 is used to crush the large stones 10 and produce sand and gravel 12. The sand making machine 9 is used to process the fine stones 11 to produce sand and gravel 12. The first product is sand and gravel 12.
[0033] In this embodiment, the second sand washing and screening assembly further includes a drum sand washing machine 13 and a second screening machine 14. The drum sand washing machine 13 is used to receive sand and gravel 12 for washing. The second screening machine 14 is connected to the drum sand washing machine 13, and the second screening machine 14 produces manufactured sand 15 and crushed stone sand 16 through vibrating screen. The drum sand washing machine 13 is used to generate a portion of muddy water 2 and introduce it into the first sedimentation tank 17. The second product is manufactured sand 15, and the third product is crushed stone sand 16. The manufactured sand 15 and crushed stone sand 16 can be directly sold again as building materials to increase economic value.
[0034] In this embodiment, the processing assembly further includes a first sedimentation tank 17, a second sedimentation tank 18, and a mud-water separator 19. The first sedimentation tank 17 is used to receive mud-water 2 for the first sedimentation. The mud-water separator 19 is connected to the first sedimentation tank 17 to separate the mud-water 2 and generate recycled water 4 and soil. The second sedimentation tank 18 is used to perform a second sedimentation on the recycled water 4. The processing assembly also includes a processing zone 20 and a backfilling zone 21. The processing zone 20 is connected to the mud-water separator 19. The processing zone 20 is used for the first, second, and third processing. The backfilling zone 21 is connected to the processing zone 20 for the fourth processing.
[0035] In detail, the first treatment includes pH adjustment by a pH adjustment device, the second treatment includes solidification of heavy metals by a solidification device, the third treatment includes addition of organic matter and microorganisms by an organic additive device, and the fourth treatment is backfilling and covering by a backfilling device. Specifically, pH adjustment is based on the acidity and alkalinity of the tailings soil, adding an appropriate amount of lime or acidic substances to adjust its pH value to a range suitable for plant growth (the pH value range is generally between 6.5 and 7.5).
[0036] Heavy metal solidification / stabilization: Specific solidifying or stabilizing agents, such as phosphates and silicates, are used to chemically react with heavy metal ions in the tailings soil to form insoluble stable compounds, reducing the bioavailability and mobility of heavy metals.
[0037] Addition of organic matter and microorganisms: Adding organic matter, humus and microbial agents to the treated tailings soil increases the soil's organic matter content, promotes microbial activity, and accelerates the improvement of soil structure and the restoration of ecological functions.
[0038] By backfilling and covering the damaged mine surface, reclamation is achieved, thus realizing the goal of ecological restoration.
[0039] This treatment system uses waste limestone tailings 1 as raw material. After being processed by the first sand washing and screening component, it produces muddy water 2, muddy sand 3, and stone mixture. The preparation component processes the stone mixture to form sand and gravel 12. The second sand washing and screening component is used to wash and vibrate the sand to produce corresponding manufactured sand 15 and crushed stone sand 16, which can be sold again as building materials, achieving a balance between income and expenditure in the restoration process. The treatment component performs the first and second sedimentation of muddy water 2, and adjusts the pH of the material, solidifies heavy metals, and adds organic matter and microorganisms. The resulting material is finally backfilled to cover the damaged mine surface to achieve reclamation, achieving the purpose of ecological restoration and soil improvement. The generated recycled water 4 is stored in the water storage tank 5 after a second sedimentation. The water storage tank 5 is circulated to the first sand washing and screening component, realizing water reuse. This treatment system is efficient, economical, environmentally friendly, and sustainable.
[0040] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A limestone tailings soil treatment system, characterized in that, include: The first sand washing and screening assembly is used to receive limestone tailings and perform the first sand washing and the first vibrating screen, and to produce a mixture of mud, sand and stone. The processing component is connected to the first sand washing and screening component and is used to receive the mud and water generated by the first sand washing and screening component and perform first sedimentation, second sedimentation, first treatment, second treatment, third treatment and fourth treatment, and generate recycled water after the second sedimentation. A preparation component is connected to the first sand washing and screening component, and the preparation component is used to generate a first product; The second sand washing and screening component is connected to the preparation component, and the second sand washing and screening component is used to generate the second product and the third product. A water storage tank is connected to the processing component, the first sand washing and screening component, and the second sand washing and screening component. The water storage tank is used to store recycled water and circulate it to the first sand washing and screening component and the second sand washing and screening component. The first sand washing and screening assembly includes a spiral sand washing machine and a first screening machine. The spiral sand washing machine is used to receive limestone tailings and is connected to a water storage tank and the first screening machine. Some of the material produced by the spiral sand washing machine enters the first screening machine and is screened by vibrating screen to form a mixture of mud, sand and stone. The spiral sand washing machine also produces mud water. The preparation components include a crusher and a sand making machine. The stone mixture includes large stones and fine stones. The crusher is used to crush the large stones and produce sand and gravel. The sand making machine is used to process the fine stones to produce sand and gravel. The first product is sand and gravel. The second sand washing and screening assembly includes a drum sand washing machine and a second screening machine. The drum sand washing machine is used to receive sand and gravel for washing. The second screening machine is connected to the drum sand washing machine, and the second screening machine produces manufactured sand and crushed stone sand through vibrating screen. The second product is manufactured sand, and the third product is crushed stone sand. The processing assembly includes a first sedimentation tank, a second sedimentation tank, and a mud-water separator. The first sedimentation tank is used to receive mud and water for the first sedimentation. The mud-water separator is connected to the first sedimentation tank to separate the mud and water and produce recycled water and soil. The second sedimentation tank is used to perform a second sedimentation on the recycled water. The processing assembly also includes a processing zone and a backfilling zone. The processing zone is connected to the mud-water separator. The processing zone is used for the first, second, and third treatments. The backfilling zone is connected to the processing zone for the fourth treatment.
2. The limestone tailings soil treatment system according to claim 1, characterized in that, The first treatment includes pH adjustment by a pH adjustment device, the second treatment includes heavy metal curing by a curing device, the third treatment includes adding organic matter and microorganisms by an organic addition device, and the fourth treatment is backfilling and covering by a backfilling device.
3. The limestone tailings soil treatment system according to claim 2, characterized in that, The drum sand washing machine is used to generate a portion of the muddy water, which is then fed into the first sedimentation tank.