Bentonite sodium treatment device

Abstract

The utility model discloses a bentonite sodium treatment device, and belongs to the technical field of bentonite sodium treatment. The bentonite sodium treatment device comprises a supporting table, a sodium treatment device and a sodium treatment device, wherein a fixed disc is fixedly arranged on the supporting table; the rotating disc is horizontally and rotatably mounted below the fixed disc, a plurality of centrifugal tubes which are uniformly distributed at intervals are arranged at the bottom of the rotating disc in the circumferential direction of the rotating disc, and the centrifugal tubes are in a centrifugal state relative to the rotating disc when the rotating disc rotates; a sodium modifying agent for bentonite is arranged in the sodium modifying agent liquid bin, and the sodium modifying agent liquid bin is communicated into the centrifugal tube through a conveying pipeline. By adopting the sodium modification device disclosed by the utility model, the sodium modification efficiency of bentonite can be effectively improved, and the sodium modification quality of bentonite can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of bentonite sodium treatment, and more specifically relates to a bentonite sodium treatment device. Background Art

[0002] Bentonite is the most important inorganic binder for pellets, its primary component being montmorillonite. Montmorillonite is a 2:1 layered silicate composed of two layers of silicon-oxygen tetrahedral sheets sandwiched between a layer of aluminum (or magnesium)-oxygen octahedral sheets. Its loose interlayer structure allows water and other organic molecules to enter, resulting in unique properties such as water-swelling, high dispersibility, and adsorption. Bentonite can generally absorb 8-15 times its own volume in water, expanding its volume by several or even dozens of times. It can disperse into gelled and suspended forms in aqueous media. These unique properties create the conditions for bentonite's use as a pellet binder.

[0003] Domestic bentonite is generally high in impurities and of poor quality, and most of it is calcium-based. The proportion of pelletized ore used in production is as high as 3%, which can easily lead to a serious reduction in the iron grade of the pellets. Based on this, researchers have focused on improving the properties of bentonite itself, using physical purification, chemical purification, sodium modification, and organic modification to improve the quality of bentonite, and have conducted extensive research. Among them, sodium modification of calcium-based bentonite is achieved by converting calcium-based bentonite into sodium-based bentonite using a sodium-containing agent. However, the existing sodium modification process for bentonite has the problems of long quality modification time and low efficiency. Therefore, how to effectively improve the efficiency of sodium modification of bentonite is of great significance. Utility Model Content

[0004] In view of the problems in the prior art of relatively low efficiency and long sodium modification time of bentonite, the utility model provides a bentonite sodium treatment device, which can effectively improve the sodium modification efficiency of bentonite and ensure its sodium modification quality.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0006] The utility model provides a bentonite sodium treatment device, comprising:

[0007] A supporting platform, on which a fixed plate is fixed;

[0008] The rotating disk is installed below the fixed disk in a horizontal rotation, and a plurality of centrifuge tubes are evenly spaced around the bottom of the rotating disk. When the rotating disk rotates, the centrifuge tubes are in a centrifugal state relative to the rotating disk;

[0009] The sodium-forming agent liquid warehouse is provided with a sodium-forming agent for bentonite, and is connected to the centrifuge tube through a conveying pipeline.

[0010] As a further improvement of any technical solution of the present invention, the sodium-forming agent liquid warehouse includes a first sodium-forming agent liquid warehouse, a second sodium-forming agent liquid warehouse and a third sodium-forming agent liquid warehouse, and the three liquid warehouses are respectively filled with sodium hexametaphosphate solution, sodium carbonate solution and sodium pyrophosphate solution.

[0011] As a further improvement of any technical solution of the present invention, the liquid outlets of the three liquid tanks are all connected to a first delivery pipe, and second delivery pipes corresponding to multiple centrifuge tubes are respectively provided in the rotating disk, and the first delivery pipes are connected to the second delivery pipes.

[0012] As a further improvement of any technical solution of the present invention, a fixed tube is provided at the bottom of the rotating disk, and the top of the centrifuge tube is rotatably connected to the fixed tube via a hinge ball.

[0013] Furthermore, a delivery channel for the second delivery pipe to pass through is processed on the hinged ball.

[0014] As a further improvement of any technical solution of the present invention, the side wall of the centrifuge tube is processed with an opening at the upper middle portion for the supernatant to flow out, and the opening can be opened or closed.

[0015] As a further improvement of any technical solution of the present invention, the aperture of the opening is 1-2 mm, and the height thereof from the bottom of the centrifuge tube is 80-85% of the overall height of the centrifuge tube.

[0016] As a further improvement of any technical solution of the present invention, a supernatant container is provided below the centrifuge tube for receiving the sodium-treated and separated bentonite supernatant.

[0017] As a further improvement of any technical solution of the present invention, a spirally raised support foot is provided at the bottom of one end of the supernatant container, and an outflow hole is processed at the end of the bottom of the supernatant container away from the support foot.

[0018] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0019] (1) The utility model designs a device for treating sodium bentonite, wherein the bentonite to be sodiumized is placed in a centrifuge tube, a sodiumizing agent is injected into the centrifuge tube through a sodiumizing agent liquid tank, and the centrifuge tube is driven to rotate together by a rotating disk, so that the mixed solution can be shaken, dispersed and centrifuged under the action of centrifugal force, which can not only ensure the sodiumization effect of the bentonite, but also effectively improve the sodiumization efficiency without the need for additional sedimentation separation.

[0020] (2) The sodiumizing agent liquid tank of the present invention includes a first sodiumizing agent liquid tank, a second sodiumizing agent liquid tank and a third sodiumizing agent liquid tank, wherein the three liquid tanks are respectively filled with sodium hexametaphosphate solution, sodium carbonate solution and sodium pyrophosphate solution. Three different sodiumizing agents are respectively injected into the centrifuge tube through the three liquid tanks, thereby improving the sodiumizing effect on bentonite and further improving the sodiumizing efficiency; at the same time, it is also convenient to control the addition order and addition amount of the three substances.

[0021] (3) The utility model has an opening in the upper middle portion of the side wall of the centrifuge tube for the outflow of the supernatant, which can be opened or closed, so that the sodium-treated supernatant can be separated out by opening the opening and enter the supernatant container under the action of centrifugal force. A spiral lifting foot is provided at the bottom of one end of the supernatant container, and an outflow hole is processed at the end of the bottom of the supernatant container away from the foot, so that the supernatant can be easily taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the sodiumization device of the present invention;

[0023] Explanation of reference numerals: 1. Support platform; 2. Fixed disk; 3. Rotating disk; 401. First sodium-reducing agent liquid tank; 402. Second sodium-reducing agent liquid tank; 403. Third sodium-reducing agent liquid tank; 5. First delivery tube; 6. Second delivery tube; 7. Fixed tube; 8. Centrifuge tube; 801. Opening; 9. Articulated ball; 10. Rotating rod; 11. Supernatant container; 1101. Outflow hole. DETAILED DESCRIPTION

[0024] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present utility model without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0026] like Figure 1As shown, an embodiment of the utility model provides a sodium treatment device for bentonite, comprising a support platform 1, a rotating disk 3 and a sodium agent liquid warehouse, wherein a fixed disk 2 is fixedly provided on the support platform 1, and the rotating disk 3 is horizontally rotatably installed below the fixed disk 2, and a plurality of centrifuge tubes 8 are evenly spaced and distributed around the bottom of the rotating disk 3 in its circumferential direction. A sodium agent for bentonite is provided in the sodium agent liquid warehouse, which is connected to the centrifuge tube 8 through a conveying pipe, so that the sodium agent is conveniently conveyed into the centrifuge tube 8 and mixed with the bentonite. After mixing, the rotating disk 3 is driven to rotate, thereby driving the plurality of centrifuge tubes 8 to be in a centrifugal state, which is convenient for fully oscillating and dispersing the mixed solution, and realizing centrifugal separation of the bentonite supernatant and impurities without the need for sedimentation separation and other operations, thereby greatly improving the sodium treatment effect and simplifying the overall operation.

[0027] As the further preferred embodiment of the present invention, described sodiumizing agent liquid storehouse comprises the first sodiumizing agent liquid storehouse 401, the second sodiumizing agent liquid storehouse 402 and the 3rd sodiumizing agent liquid storehouse 403, in the three liquid storehouses, be respectively filled with sodium hexametaphosphate solution, sodium carbonate solution and sodium pyrophosphate solution, its mass concentration is respectively 8-10%, 10-12% and 3-5%, in centrifuge tube 8, inject three kinds of different sodiumizing agents successively and carry out sodiumization process respectively by three liquid storehouses, effectively can improve the sodiumization effect to bentonite by the composite of three kinds of materials, and ensure the yield of montmorillonite, can also further improve sodiumization efficiency simultaneously.As further preferred version, first inject sodium hexametaphosphate solution and carry out one-level centrifugal rotation sodiumization process, then inject sodium carbonate solution and carry out secondary centrifugal rotation sodiumization process, finally inject sodium pyrophosphate solution again and carry out three-stage centrifugal rotation sodiumization process, thereby can make the quality of gained bentonite and the yield of montmorillonite in bentonite obtain best coupling.The addition of three kinds of materials and addition can be controlled by control valve, or utilize gas metering.

[0028] As one embodiment of the centrifuge tube in the present invention, a fixed tube 7 is provided at the bottom of the rotating disk 3. The top of the centrifuge tube 8 is rotatably connected to the fixed tube 7 via a hinge ball 9. The bottom of the hinge ball 9 is fixedly mounted on the nozzle of the centrifuge tube. Its size matches the diameter of the centrifuge tube to ensure the sealing of the nozzle and prevent the mixed liquid from overflowing during centrifugal rotation. The hinge ball 9 and the centrifuge tube 8 can be connected by a threaded connection or other fixed connection methods. However, when the rotating disk 3 is stationary, each centrifuge tube is in a vertical state. When the rotating disk 3 rotates, each centrifuge tube is in an inclined state under the action of centrifugal force. Specifically, in this embodiment, the liquid outlets of the three liquid bins are connected to a first delivery pipe 5. The rotating disk 3 and the fixed tube 7 are respectively provided with a second delivery pipe 6 corresponding to the multiple centrifuge tubes 8. The first delivery pipe 5 is connected to the second delivery pipe 6, and the hinge ball 9 is processed with a delivery channel for the second delivery pipe 6 to pass through. The aperture of the delivery channel is larger than the outer diameter of the second delivery pipe 6.

[0029] It should also be noted that the rotation drive structure of the rotating disk 3 in the present invention is not limited, as long as it can drive the centrifuge tube to rotate relative to the fixed disk 2. For example, the rotating disk 3 can be directly driven to rotate by a motor-gear mechanism, or a rotating rod 10 can be set at the bottom center of the rotating disk 3, and the rotating rod 10 can be driven to rotate by a motor, thereby driving the rotating disk 3 to rotate together.

[0030] In some embodiments, each centrifuge tube 8 has a sidewall with an openable or closable opening 801 for the outflow of supernatant liquid located in the upper middle portion, toward the central axis of the centrifuge tube. After sufficient centrifugation, opening 801 is opened to facilitate the outflow of the supernatant liquid and separate it from the settled impurities below. More preferably, opening 801 has a diameter of 1-2 mm and is positioned 80-85% of the overall height of centrifuge tube 8 from the bottom of centrifuge tube 8.

[0031] Furthermore, a supernatant container 11 is provided below the centrifuge tube 8 for receiving the sodium-treated and separated bentonite supernatant. To facilitate removal of the supernatant from the supernatant container 11, a foot is provided at the bottom of one end of the container 11, which allows the container 11 to be tilted. An outflow hole 1101 is formed at the bottom end of the container 11, distal from the foot. Specifically, in one embodiment, the foot is a spirally raised foot, making it easy to adjust the tilt of the container 11.

[0032] The sodiumization device of the embodiment of the utility model is adopted, and the specific process is as follows:

[0033] (1) The first sodiumizing agent liquid tank 401 is filled with sodium hexametaphosphate. Sodium hexametaphosphate is first injected into the centrifuge tube, and then the rotating disk 3 is driven to perform reciprocating motion (counterclockwise rotation for 1 second, clockwise rotation for 1 second, speed 500-800 rpm), fully oscillated and dispersed, and stopped after 3 minutes;

[0034] (2) Close the first sodium-forming agent liquid tank 401, open the second sodium-forming agent liquid tank 402, inject sodium carbonate into the centrifuge tube 8, and drive the centrifuge tube 8 to reciprocate (counterclockwise rotation for 1 min, clockwise rotation for 1 min, speed 500-800 rpm), and stop after 4 minutes;

[0035] (3) Close the second sodium-forming agent liquid tank 402, open the third sodium-forming agent liquid tank 403, inject sodium pyrophosphate into the centrifuge tube 8, and drive the centrifuge tube 8 to reciprocate (rotate counterclockwise for 1 min, rotate clockwise for 1 min, speed 500-800 rpm), and stop after 4 minutes;

[0036] (4) The centrifuge tube 8 is driven by the rotating disk to perform high-speed centrifugal motion, rotating clockwise at a speed of 3000-4000 rpm. Under the high-speed centrifugal force, the sediment is concentrated at the bottom, which is conducive to taking the supernatant;

[0037] (5) After 1 minute, the rotation speed is reduced to 300-400 rpm, the opening 801 is opened, and the supernatant flows out into the supernatant container 11 under the action of centrifugal force;

[0038] (6) After the reaction is completed, the rotating disk 3 stops rotating, the support leg is raised, the outflow hole 1101 is opened, and the supernatant is collected;

[0039] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A bentonite sodium treatment device, characterized in that: include: A support platform (1), on which a fixed plate (2) is fixedly provided; A rotating disk (3) is horizontally rotatably mounted below the fixed disk (2), and a plurality of centrifuge tubes (8) are evenly spaced and distributed around the bottom of the rotating disk (3) in a circumferential direction thereof. When the rotating disk (3) rotates, the centrifuge tubes (8) are in a centrifugal state relative to the rotating disk (3); The sodium-forming agent liquid warehouse is provided with a sodium-forming agent for bentonite, and is connected to the centrifuge tube (8) through a conveying pipeline.

2. The bentonite sodium treatment device according to claim 1, characterized in that: The sodiumizing agent liquid tank comprises a first sodiumizing agent liquid tank (401), a second sodiumizing agent liquid tank (402) and a third sodiumizing agent liquid tank (403), wherein the three liquid tanks are respectively filled with sodium hexametaphosphate solution, sodium carbonate solution and sodium pyrophosphate solution.

3. The bentonite sodium treatment device according to claim 2, characterized in that: The liquid outlets of the three liquid bins are all connected to a first delivery pipe (5), and second delivery pipes (6) corresponding to the plurality of centrifuge tubes (8) are respectively provided in the rotating disk (3), and the first delivery pipe (5) is communicated with the second delivery pipe (6).

4. The bentonite sodium treatment device according to claim 3, characterized in that: A fixed tube (7) is provided at the bottom of the rotating disk (3), and the top of the centrifuge tube (8) is rotatably connected to the fixed tube (7) via a hinge ball (9).

5. The bentonite sodium treatment device according to claim 4, characterized in that: The hinged ball (9) is machined with a delivery channel for the second delivery pipe (6) to pass through.

6. The bentonite sodium treatment device according to any one of claims 1 to 5, characterized in that: The side wall of the centrifuge tube (8) is provided with an opening (801) at the upper middle portion thereof for the supernatant to flow out and which can be opened or closed.

7. The bentonite sodium treatment device according to claim 6, characterized in that: The aperture of the opening (801) is 1-2 mm, and its height from the bottom of the centrifuge tube (8) is 80-85% of the entire height of the centrifuge tube (8).

8. The bentonite sodium treatment device according to claim 6, characterized in that: A supernatant container (11) is provided below the centrifuge tube (8) for receiving the sodium-treated and separated bentonite supernatant.

9. The bentonite sodium treatment device according to claim 8, characterized in that: A spiral raised support foot is provided at the bottom of one end of the supernatant container (11), and an outflow hole (1101) is processed at the end of the bottom of the supernatant container (11) away from the support foot.

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