Method for producing illite fine powder from illite ore soil by wet process

Abstract

The invention belongs to the technical field of ore processing, and provides a method for producing illite fine powder from illite ore soil by a wet process, which comprises the following steps: S1, taking illite clay ore, and putting the illite clay ore into an illite clay ore hydraulic beating machine; s2, the illite clay ore hydraulic beating machine is started, illite clay ore is smashed through high-pressure water impact, impurities with the particle size larger than 100 meshes are separated, and illite slurry with the particle size smaller than 100 meshes is obtained; s3, the illite slurry is put into a multi-outlet cyclone hydraulic separator to be subjected to size grading, and graded slurry is obtained; s4, respectively putting the classified slurry into a membrane separator to remove 30%-40% by volume of water, so as to obtain dewatered slurry; s5, filtering the dewatered slurry through a plate and frame filter to obtain wet powder; the multi-outlet cyclone hydraulic separator is used for carrying out size grading on illite slurry, then the graded slurry is processed, and the purity of illite powder can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of ore processing, and specifically relates to a method for wet production of illite fine powder from illite ore soil. Background Art

[0002] Illite has the characteristics of smoothness, brightness, softness, good insulation, heat resistance, high covering power, etc., and is widely used in industrial fields such as papermaking, plastics, rubber, paints, cosmetics, cable insulation materials, ceramics, etc. Illite mainly exists in nature in two forms. One is hard ore, which is mainly distributed in the south such as Zhejiang, Henan, Hebei and the northwestern region of Shaanxi Province, and the other is clay ore, which is mainly distributed in regions such as Jiangxi, Jilin, Liaoning, Inner Mongolia, etc.

[0003] However, the composition of illite powder will change with the change of the composition of the ore raw material. Therefore, in addition to illite in the actual powder, there are also other inorganic substances such as silicates, carbonates, sulfates, etc., and there are also organic substances with relatively low content in some places, resulting in impurities in the illite powder and affecting the purity.

[0004] For this reason, those skilled in the art have proposed a method for wet production of illite fine powder from illite ore soil to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a method for wet production of illite fine powder from illite ore soil to solve the problem that the illite powder in the prior art contains impurities and affects the purity.

[0006] A method for wet production of illite fine powder from illite ore soil includes:

[0007] S1: Take illite clay ore and place it into an illite clay ore hydraulic pulper;

[0008] S2: Start the illite clay ore hydraulic pulper, break the illite clay ore by high-pressure water impact, separate the impurities with a particle size greater than 100 mesh, and obtain an illite slurry with a particle size less than 100 mesh;

[0009] S3: Place the illite slurry into a multi-outlet hydrocyclone for particle size classification to obtain a classified slurry;

[0010] S4: Place the classified slurry into a membrane separator respectively to remove 30% - 40% of the water by volume to obtain a dewatered slurry;

[0011] S5: Filter the dewatered slurry through a plate and frame filter press to obtain wet powder;

[0012] S6: Dry the wet powder with a dryer to obtain a material.

[0013] Preferably, the classified slurry is divided into Slurry 1, Slurry 2, and Slurry 3 according to particle size.

[0014] Preferably, the particle size of Slurry 1 is above 600 mesh, containing 95% - 98% by volume of illite. The material obtained after processing Slurry 1 through S4, S5, and S6 is Illite Powder 1.

[0015] Preferably, the particle size of Slurry 2 is 200 - 600 mesh, containing 90% - 95% by volume of illite. The material obtained after processing Slurry 2 through S4, S5, and S6 is Illite Powder 2.

[0016] Preferably, the particle size of Slurry 3 is above 300 mesh, containing 78% - 82% by volume of quartz. The material obtained after processing Slurry 3 through S4, S5, and S6 is Illite Powder 3.

[0017] Preferably, the water content of the wet powder is 20% - 30%.

[0018] Preferably, the membrane separator is an external cyclone flow-limiting channel membrane separator.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention classifies the particle size of illite slurry through a multi-outlet hydrocyclone separator and then processes the classified slurry, which can improve the purity of illite powder.

[0021] 2. The present invention processes and produces illite powder through an illite clay ore hydraulic pulper and an external cyclone flow-limiting channel membrane separator, making the process flow more reasonable, more compact, with lower energy consumption and lower environmental pollution, and can improve production efficiency more effectively.

[0022] 3. The products obtained by the present invention through this method have multiple categories and high purity, can better meet market demands, expand sales volume, and increase the production income of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a method for wet production of illite fine powder from illite ore soil. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes in detail the embodiments of the present invention with reference to the drawings and examples. The following examples are used to illustrate the present invention but cannot be used to limit the scope of the present invention.

[0025] Example 1

[0026] As shown in the appendix Figure 1As shown in the figure, the present invention provides a method for wet-producing illite fine powder from illite ore soil. S1: Take illite clay ore and place it into an illite clay ore hydraulic pulper.

[0027] S2: Start the illite clay ore hydraulic pulper. The illite clay ore is broken by high-pressure water impact, and impurities with a particle size larger than 100 mesh are separated to obtain an illite slurry with a particle size smaller than 100 mesh. The use of the illite clay ore hydraulic pulper makes the pretreatment of illite ore soil more efficient and environmentally friendly. High-pressure water impact can fully break the illite particles in the ore soil and separate the impurities therein, avoiding serious wear of equipment and environmental pollution during the traditional mechanical pulverization process.

[0028] S3: Place the illite slurry into a multi-outlet hydrocyclone for particle size classification to obtain the classified slurry. The use of the multi-outlet hydrocyclone makes the particle size classification of the illite slurry more accurate and efficient. Through the action of centrifugal force, particles with different particle sizes in the slurry can be effectively separated to obtain illite slurries of different specifications. The classified slurry has a higher purity and lower impurity content, creating favorable conditions for the subsequent dehydration and drying processes.

[0029] S4: Place the classified slurry into a membrane separator respectively to remove 30% - 40% of the volume of water to obtain the dewatered slurry. The use of the membrane separator significantly improves the dehydration efficiency of the slurry. Through the filtration of the membrane, most of the water in the slurry can be effectively removed, reducing the water content of the slurry. This not only reduces the filtration load of the subsequent plate-and-frame filter, improves the filtration speed, but also reduces the energy consumption of the drying process and shortens the production cycle.

[0030] S5: Filter the dewatered slurry through a plate-and-frame filter to obtain wet powder. The use of the plate-and-frame filter makes the filtration of the slurry more thorough and efficient. It can carry out squeezing dehydration on the filter cake during the filtration process, further reducing the water content of the filter cake and improving the purity and quality of the product.

[0031] S6: Dry the wet powder with a dryer to obtain the material. The use of the dryer can completely remove the water in the wet powder. The dried fine powder has uniform particle size and good fluidity.

[0032] Example Two

[0033] As shown in the appendix Figure 1 As shown, this example is basically the same as the previous example. The difference is that the classified slurry is divided into Slurry One, Slurry Two, and Slurry Three according to the particle size. The slurry classification enables effective separation of particles with different particle sizes and compositions, providing a basis for producing illite powders of different specifications and purities. The slurry classification also helps to improve the efficiency of subsequent dehydration, filtration, and drying processes, reducing energy consumption and production costs.

[0034] Specifically, the particle size of Slurry 1 is above 600 mesh, containing 95% - 98% by volume of illite. The material obtained after processing Slurry 1 through S4, S5, and S6 is Illite Powder 1. The high purity and fine particle size of Slurry 1 enable it to have broad application prospects in high-end industrial fields, such as being used as high-end coatings, plastic additives, etc.

[0035] Furthermore, the particle size of Slurry 2 is 200 - 600 mesh, containing 90% - 95% by volume of illite. The material obtained after processing Slurry 2 through S4, S5, and S6 is Illite Powder 2. The moderate particle size and relatively high purity of Slurry 2 endow it with good performance in general industrial applications, such as being used as paper-making filler, rubber reinforcing agent, etc.

[0036] Furthermore, the particle size of Slurry 3 is above 300 mesh, containing 78% - 82% by volume of quartz. The material obtained after processing Slurry 3 through S4, S5, and S6 is Illite Powder 3. The relatively high quartz content of Slurry 3 gives it unique application value in specific industrial fields, such as being used as raw materials for building ceramics, etc.

[0037] Furthermore, the water content of the wet powder is 20% - 30%.

[0038] Furthermore, the membrane separator is an external cyclone flow-limiting channel membrane separator, which can effectively remove most of the water in the slurry, reduce the water content of the slurry, and also reduce the filtration load of the subsequent plate and frame filter, improve the filtration speed, reduce the energy consumption of the drying process, and shorten the production cycle.

[0039] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the well-known prior art of those skilled in the art.

[0040] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "plural" is two or more, unless otherwise specifically defined.

[0041] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for producing illite fine powder from illite ore by wet process, characterized in that: include, S1: taking illite clay ore and placing it in an illite clay ore hydraulic beater; S2: starting the illite clay ore hydraulic pulping machine to break up the illite clay ore by high-pressure water impact, separating impurities with a particle size greater than 100 mesh, and obtaining illite slurry with a particle size less than 100 mesh; S3: placing the illite slurry into a multi-outlet hydrocyclone separator for particle size classification to obtain a classified slurry; S4: placing the classified slurries into membrane separators to remove 30% to 40% of the volume of water to obtain dehydrated slurries; S5: filtering the dehydrated slurry through a plate and frame filter to obtain wet powder; S6: Drying the wet powder in a dryer to obtain a material.

2. A method for producing illite fine powder from illite ore by wet process as claimed in claim 1, characterized in that: The classified slurry is divided into slurry one, slurry two and slurry three according to particle size.

3. A method for producing illite fine powder from illite ore by wet process as claimed in claim 2, characterized in that: The particle size of the slurry 1 is above 600 meshes, and contains 95% to 98% illite by volume. The material obtained after the slurry 1 is processed by S4, S5, and S6 is illite powder 1.

4. A method for producing illite fine powder from illite ore by wet process as claimed in claim 3, characterized in that: The particle size of the slurry 2 is 200-600 meshes, and contains 90%-95% illite by volume. The material obtained after the slurry 2 is processed by S4, S5, and S6 is illite powder 2.

5. A method for producing illite fine powder from illite ore by wet process as claimed in claim 4, characterized in that: The particle size of the slurry three is above 300 meshes, and contains 78% to 82% by volume of quartz. The material obtained after the slurry three is processed by S4, S5, and S6 is illite powder three.

6. A method for producing illite fine powder from illite ore by wet process as claimed in claim 5, characterized in that: The moisture content of the wet powder is 20% to 30%.

7. A method for producing illite fine powder from illite ore by wet process as claimed in claim 6, characterized in that: The membrane separator is an external rotation flow limiting channel membrane separator.

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