Substance separation and purification system for building silt and purification method

Abstract

The invention provides a substance separation and purification system for building silt and a purification method, and belongs to the technical field of building silt. Comprising a silt extraction module, and the silt extraction module is used for extracting silt from building waste or a building site; the screen filtering module is used for carrying out preliminary screening on the extracted building silt; the silt separation module is used for separating soil and sand in the building silt; the silt separation module comprises a physical separation module and a chemical separation module. Impurities in construction waste or silt generated on a construction site can be more thoroughly removed, the quality of building concrete is improved, the silt is separated into different particle size ranges so that the silt can be better utilized in buildings or other projects, the influence of the waste on the environment can be reduced, and silt resources can be reused.

Description

Technical Field

[0001] The invention relates to the technical field of building mud and sand, and in particular to a material separation and purification system and a purification method for building mud and sand. Background Art

[0002] Silt is a mixture of rock particles, organic matter and other particulate matter, usually transported by water or wind and deposited on the surface or bottom of the water. The composition and properties of sediment depend on factors such as the geological environment of its source, transportation route and deposition conditions.

[0003] In the process of building construction, mud and sand are used. At present, sand is prone to adhere to a large amount of soil during production, collection and even transportation. The soil mixed in the sand will affect the quality of the subsequent concrete preparation, and the quality of the existing finished mud and sand is uneven. Most of the mud and sand are stored in the open air, resulting in more impurities in the construction mud and sand, which makes the quality of the mud and sand worse, and further affects the quality of the building. In addition, construction mud and sand usually contain other metal substances. The existing construction mud and sand separation system only separates the mud and sand through a simple separation method, and is unable to separate the metal substances and magnetic substances in the construction mud and sand, resulting in waste of resources and easy impact on the environment. Therefore, the present application provides a material separation and purification system and purification method for construction mud and sand to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a material separation and purification system and purification method for construction mud to solve the problem that the quality of existing finished mud is uneven, and the mud is mostly stored in the open air, resulting in a large amount of impurities in the construction mud, which makes the quality of the mud deteriorate, and further affects the quality of the building. In addition, the construction mud usually contains other metal substances. The existing construction mud separation system only separates the mud by a simple separation method, and is unable to separate the metal substances and magnetic substances in the construction mud, resulting in a waste of resources and easily causing an impact on the environment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A material separation and purification system and purification method for construction mud and sand, comprising: a mud and sand extraction module, the mud and sand extraction module is used to extract mud and sand from construction waste or construction site;

[0007] A screen filtration module, the screen filtration module is used to preliminarily screen the extracted construction mud and sand;

[0008] A sediment separation module, the sediment separation module is used to separate the soil and sand in the construction sediment; the sediment separation module includes a physical separation module and a chemical separation module, the physical separation module is used to physically separate the preliminary screened construction sediment, and the chemical separation module is used to chemically separate the preliminary screened construction sediment;

[0009] A sediment purification module, which is used to further purify the construction sediment after the impurities are separated;

[0010] The monitoring and control module is used for monitoring and controlling the entire system.

[0011] Preferably, the physical separation module comprises a gravity sedimentation module, which is used to mix the construction mud and sand with water, separate the heavy particles from the light particles in the mud and sand, and settle the heavier particles to the bottom of the container by sedimentation, and then remove the water and light particles in the upper layer;

[0012] The physical separation module also includes a drying module, which is used to dry the settled construction mud and sand;

[0013] The physical separation module further comprises a cyclone separation module, and the cyclone separation module is used to separate particles of different densities by using the centrifugal force generated by the cyclone.

[0014] Preferably, the chemical separation module comprises a flotation module, and the flotation module is used to float construction mud and sand. By adding chemical reagents, specific particles are attached to bubbles and float to the water surface for easy removal.

[0015] Preferably, the sediment purification module includes a sediment washing module, which is used to wash the separated construction sediment to remove light impurities;

[0016] The sediment purification module also includes a magnetic separation module, which is used to magnetically separate the separated and purified construction sediment to remove magnetic substances in the construction sediment.

[0017] Preferably, the sediment purification module further comprises a drying module, and the drying module is used to dry the building modules after washing and magnetic separation.

[0018] A method for separating and purifying materials for construction mud and sand comprises the following steps:

[0019] S1. Extract construction waste or construction mud and sand from the construction site, and separate the construction mud and sand through a sieve;

[0020] S2. After the construction mud and sand are initially screened, physical separation or chemical separation or a combination of the two can be selected as needed;

[0021] S3, physical separation;

[0022] S301, mixing construction mud and clean water to form mud slurry, utilizing the difference in material density, and using gravity to make the denser impurities settle to the bottom, while the lighter mud particles float on top, thus achieving separation;

[0023] S302, the initially separated silt is dried and sent to a cyclone;

[0024] S303, using the centrifugal force generated by the cyclone to separate particles of different densities, the heavier particles will be thrown outside the container, and the lighter particles will be guided to the center;

[0025] S4, chemical separation;

[0026] S401, by adding chemical reagents, specific particles are attached to the bubbles, so that they float to the surface of the water and are easy to remove;

[0027] S402; separating the minerals in the upper layer from the mud and sand in the lower layer;

[0028] S5. The separated sediment is washed with water, and the light impurities are taken away by stirring or water flow, thereby improving the purity of the sediment;

[0029] S6. Using the principle of magnetic separation, magnetic impurities are adsorbed or repelled through a magnetic field, thereby achieving separation;

[0030] S7. Dry the separated and purified mud and add a whitening agent to whiten the mud, and then store it in a warehouse.

[0031] Preferably, in S1, the construction mud and sand are screened by a mechanical sieve, and the screening is divided into three standards: 10 mesh, 100 mesh and 200 mesh.

[0032] Preferably, S3 and S4 are performed separately or S3 is performed first and then S4.

[0033] Preferably, the chemical reagent in S401 is carried out using a collector; when selecting sulfide minerals such as copper, lead, zinc, iron, nickel and antimony, alkyl sodium dithiocarbonate or alkyl dithiophosphoric acid or their salts are used;

[0034] Non-sulfide mineral collectors include fatty acids and their soaps, as well as sodium hydrocarbon sulfonates, which are used for the flotation of iron ore, apatite, and fluorite. When flotating tungsten and tin, collectors such as toluene arsenic acid and styrene phosphoric acid are used.

[0035] Compared with the prior art, the present invention has at least the following beneficial effects:

[0036] In the above scheme, the construction mud and sand are separated physically and chemically to fully separate the soil and sand in the construction mud and sand, and the soil and sand can be fully separated by water washing and a cyclone, and the metal minerals in the mud or sand are separated by flotation. The mud and sand after flotation are washed again to remove the light impurities floating on the surface, so that the separated and purified mud and sand are purer, and the sand can be used directly as a building material. The separated and purified mud is added with a whitening agent and can be used as a ceramic material or a building material, so that the impurities in the construction waste or the mud and sand generated at the construction site are removed more thoroughly, and the quality of the building concrete is improved. The mud and sand are separated into different particle size ranges so that they can be better utilized in construction or other projects, which helps to reduce the impact of waste on the environment and reuse mud and sand resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0038] Figure 1 This is a schematic diagram of the structure of a material separation and purification system for construction mud and sand;

[0039] Figure 2 Flow chart of the method for separating and purifying materials used in construction mud and sand. DETAILED DESCRIPTION

[0040] The following is a detailed description of a material separation and purification system and purification method for construction mud and sand provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0043] It will be understood that the meaning of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, so that “on” means not only “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” means not only “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0044] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0045] Example 1

[0046] like Figure 1 As shown, an embodiment of the present invention provides a material separation and purification system and purification method for construction mud and sand, including: a mud and sand extraction module, the mud and sand extraction module is used to extract mud and sand from construction waste or construction sites;

[0047] A screen filter module, which is used to preliminarily screen the extracted construction mud and sand;

[0048] A sediment separation module, which is used to separate the soil and sand in the construction sediment; the sediment separation module includes a physical separation module and a chemical separation module, the physical separation module is used to physically separate the preliminary screened construction sediment, and the chemical separation module is used to chemically separate the preliminary screened construction sediment;

[0049] Sediment purification module: the sediment purification module is used to further purify the construction sediment after the impurities are separated;

[0050] Monitoring and control module: The monitoring and control module is used for monitoring and controlling the entire system.

[0051] It should be further explained in this embodiment that the physical separation module includes a gravity sedimentation module, which is used to mix the construction mud and water, separate the heavy particles from the light particles in the mud and sand, and settle the heavier particles to the bottom of the container through sedimentation, and then remove the water and light particles in the upper layer;

[0052] The physical separation module also includes a drying module, which is used to dry the settled construction mud and sand;

[0053] The physical separation module also includes a cyclone separation module, which is used to separate particles of different densities by using the centrifugal force generated by the cyclone.

[0054] It should be further explained in this embodiment that the chemical separation module includes a flotation module, which is used to float construction mud and sand. By adding chemical reagents, specific particles are attached to bubbles and float to the water surface for easy removal.

[0055] It should be further explained in this embodiment that the sediment purification module includes a sediment washing module, which is used to wash the separated construction sediment to remove light impurities;

[0056] The sediment purification module also includes a magnetic separation module, which is used to magnetically separate the separated and purified construction sediment to remove magnetic substances in the construction sediment.

[0057] It should be further explained in this embodiment that the sediment purification module also includes a drying module, and the drying module is used to dry the building modules after washing and magnetic separation.

[0058] Example 2

[0059] like Figure 2 As shown, a method for separating and purifying materials for construction mud and sand comprises the following steps:

[0060] S1. Extract construction waste or construction mud and sand from the construction site, and separate the construction mud and sand through a sieve;

[0061] S2. After the construction mud and sand are initially screened, physical separation or chemical separation or a combination of the two can be selected as needed;

[0062] S3, physical separation;

[0063] S301, mixing construction mud and clean water to form mud slurry, utilizing the difference in material density, and using gravity to make the denser impurities settle to the bottom, while the lighter mud particles float on top, thus achieving separation;

[0064] S302, the initially separated silt is dried and sent to a cyclone;

[0065] S303, using the centrifugal force generated by the cyclone to separate particles of different densities, the heavier particles will be thrown outside the container, and the lighter particles will be guided to the center;

[0066] S4, chemical separation;

[0067] S401, by adding chemical reagents, specific particles are attached to the bubbles, so that they float to the surface of the water and are easy to remove;

[0068] S402; separating the minerals in the upper layer from the mud and sand in the lower layer;

[0069] S5. The separated sediment is washed with water, and the light impurities are taken away by stirring or water flow, thereby improving the purity of the sediment;

[0070] S6. Using the principle of magnetic separation, magnetic impurities are adsorbed or repelled through a magnetic field, thereby achieving separation;

[0071] S7. Dry the separated and purified mud and add a whitening agent to whiten the mud, and then store it in a warehouse.

[0072] It should be further explained in this embodiment that in S1, the construction mud and sand are screened by a mechanical screen, and the screening is divided into three standards: 10 mesh, 100 mesh and 200 mesh.

[0073] It should be further explained in this embodiment that S3 and S4 are performed separately or S3 is performed first and then S4.

[0074] It should be further explained in this embodiment that the chemical reagent in S401 is carried out using a collector; when selecting sulfide minerals such as copper, lead, zinc, iron, nickel and antimony, alkyl sodium dithiocarbonate or alkyl dithiophosphoric acid or their salts are used;

[0075] Non-sulfide mineral collectors include fatty acids and their soaps, as well as sodium hydrocarbon sulfonates, which are used for the flotation of iron ore, apatite, and fluorite. When flotating tungsten and tin, collectors such as toluene arsenic acid and styrene phosphoric acid are used.

[0076] The technical solution provided by the present invention can more thoroughly remove impurities in construction waste or mud and sand generated at construction sites, improve the quality of building concrete, and separate the mud and sand into different particle size ranges so that they can be better utilized in construction or other projects, which helps to reduce the impact of waste on the environment and reuse mud and sand resources.

[0077] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0078] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0079] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A material separation and purification system for construction mud and sand, characterized in that: include: A sediment extraction module, wherein the sediment extraction module is used to extract sediment from construction waste or a construction site; A screen filtration module, the screen filtration module is used to preliminarily screen the extracted construction mud and sand; A sediment separation module, the sediment separation module is used to separate the soil and sand in the construction sediment; the sediment separation module includes a physical separation module and a chemical separation module, the physical separation module is used to physically separate the preliminary screened construction sediment, and the chemical separation module is used to chemically separate the preliminary screened construction sediment; A sediment purification module, which is used to further purify the construction sediment after the impurities are separated; The monitoring and control module is used for monitoring and controlling the entire system.

2. The construction mud and sand material separation and purification system according to claim 1 is characterized in that: The physical separation module includes a gravity sedimentation module, which is used to mix the construction mud and sand with water, separate the heavy particles from the light particles in the mud and sand, and settle the heavier particles to the bottom of the container through sedimentation, and then remove the water and light particles in the upper layer; The physical separation module also includes a drying module, which is used to dry the settled construction mud and sand; The physical separation module further comprises a cyclone separation module, and the cyclone separation module is used to separate particles of different densities by using the centrifugal force generated by the cyclone.

3. The system for separating and purifying construction mud and sand according to claim 1, characterized in that: The chemical separation module includes a flotation module, which is used to float construction mud and sand. By adding chemical reagents, specific particles are attached to bubbles and float to the water surface for easy removal.

4. The system for separating and purifying construction mud and sand according to claim 1, characterized in that: The sediment purification module includes a sediment washing module, which is used to wash the separated construction sediment to remove light impurities; The sediment purification module also includes a magnetic separation module, which is used to magnetically separate the separated and purified construction sediment to remove magnetic substances in the construction sediment.

5. The system for separating and purifying construction mud and sand according to claim 1, characterized in that: The sediment purification module also includes a drying module, which is used to dry the building modules after washing and magnetic separation.

6. A method for separating and purifying materials for construction mud and sand, characterized in that: A system for separating and purifying construction mud and sand applied to any one of claims 1 to 5, comprising the following steps: S1. Extract construction waste or construction mud and sand from the construction site, and separate the construction mud and sand through a sieve; S2. After the construction mud and sand are initially screened, physical separation or chemical separation or a combination of the two can be selected as needed; S3, physical separation; S301, mixing construction mud and clean water to form mud slurry, utilizing the difference in material density, and using gravity to make the denser impurities settle to the bottom, while the lighter mud particles float on top, thus achieving separation; S302, the initially separated silt is dried and sent to a cyclone; S303, using the centrifugal force generated by the cyclone to separate particles of different densities, the heavier particles will be thrown outside the container, and the lighter particles will be guided to the center; S4, chemical separation; S401, by adding chemical reagents, specific particles are attached to the bubbles, so that they float to the surface of the water and are easy to remove; S402; separating the minerals in the upper layer from the mud and sand in the lower layer; S5. The separated sediment is washed with water, and the light impurities are taken away by stirring or water flow, thereby improving the purity of the sediment; S6. Using the principle of magnetic separation, magnetic impurities are adsorbed or repelled through a magnetic field, thereby achieving separation; S7. Dry the separated and purified mud and add a whitening agent to whiten the mud, and then store it in a warehouse.

7. The method for separating and purifying construction mud and sand according to claim 6, characterized in that: In S1, the construction mud and sand are screened by a mechanical screen, and the screening is divided into three standards: 10 mesh, 100 mesh and 200 mesh.

8. The system and method for separating and purifying construction mud and sand according to claim 6, characterized in that: The S3 and S4 are performed separately or S3 is performed first and then S4.

9. The method for separating and purifying construction mud and sand according to claim 1, characterized in that: The chemical reagent in S401 is carried out by using a collector; when selecting sulfide minerals such as copper, lead, zinc, iron, nickel and antimony, alkyl sodium dithiocarbonate or alkyl dithiophosphoric acid or their salts are used; Non-sulfide mineral collectors include fatty acids and their soaps, as well as sodium hydrocarbon sulfonates, which are used for the flotation of iron ore, apatite, and fluorite. When flotating tungsten and tin, collectors such as toluene arsenic acid and styrene phosphoric acid are used.

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