阅读说明：本技术 一种高泥化高滑石矿的脱泥方法 (Desliming method for high-argillization high-talc ore ) 是由 宋念平 王延锋 常富强 梁献振 牛南南 郭松林 车文芳 张燕红 于 2021-06-28 设计创作，主要内容包括：一种高泥化高滑石矿的脱泥方法,通过在旋流器和搅拌桶中设置脱泥结构,能够让原矿浆直接进行浮选作业,脱泥过程在浮选过程中进行完成,即脱泥过程在改造后的搅拌桶和旋流器中同步完成,无需进行预先脱泥,简化了整个浮选的流程,提高了生产的效率,同时,脱泥产品除了可以进行磁铁回收外,其滑石还可用于建筑材料的制作或者油漆行业。(The utility model provides a desliming method of high argillization high talc ore, through set up desliming structure in swirler and agitator, can let the direct flotation operation that carries on of former ore pulp, desliming process is accomplished in the flotation process, desliming process is accomplished in agitator and the swirler after reforming transform in step promptly, need not to desliming in advance, the flow of whole flotation has been simplified, the efficiency of production has been improved, simultaneously, the desliming product except can carrying out the magnet and retrieve, its talcum still can be used to building material's preparation or paint industry.)

1. A desliming method of high-argillization high-talc ore is characterized by comprising the following steps: comprises the following steps

First, reform transform swirler

Adjusting the position of an overflow pipe of a cyclone to ensure that a bubble blocking plate, a bubble scraping device, a foam groove and a flashboard lifting mechanism can be installed on the cyclone, wherein the bubble blocking plate separates the upper side of the inner cavity of the cyclone, one side of the bubble blocking plate is provided with an ore pulp outlet, the other side of the bubble blocking plate is provided with the bubble scraping device, the ore pulp of the cyclone is gathered at the side, the flashboard lifting mechanism is arranged at the ore pulp outlet and used for controlling the flow velocity of the ore pulp, and the bubble scraping device drives the foam on the upper layer of the ore pulp into the foam groove and flows out of a fine slime outlet;

secondly, reform transform the agitator

The stirring device comprises a stirring barrel, a foam blocking plate, a foam groove and a flashboard lifting mechanism, wherein the stirring barrel is provided with the foam blocking plate, the foam blocking device, the foam groove and the flashboard lifting mechanism;

adding a foaming agent MIBC into raw ore pulp, pumping the raw ore pulp into a swirler through a slurry pump, and controlling the liquid level of the pulp of the swirler by controlling a flashboard lifting mechanism of the modified swirler so as to realize the grooving of the pulp until foam can enter a foam groove through a foam scraping device, separating the upper part of an inner cavity of the modified swirler by a foam blocking plate, enabling the pulp to enter an ore pulp outlet from the lower side of the foam blocking plate, sending fine slime foam on the surface into the foam groove by the foam scraping device, and enabling the fine slime foam to flow out from the fine slime outlet;

fourthly, testing and reforming the desliming foam grade flowing out of the cyclone

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the raw ore grade, the rotating speed of a foam scraping device can be properly increased, the scraping amount is increased, and when the fine sludge grade is too high, the rotating speed of the foam scraping device can be properly reduced, and the scraping amount is reduced;

introducing the ore pulp flowing out of the ore pulp outlet of the improved cyclone into an improved stirring barrel, controlling the liquid level of the ore pulp in the improved stirring barrel by controlling a flashboard lifting mechanism on the improved stirring barrel until the foam can enter a foam tank through a foam scraping device, separating the upper part of an inner cavity of the improved stirring barrel by a foam blocking plate on the improved stirring barrel, allowing the ore pulp to enter the ore pulp outlet from the lower side of the foam blocking plate and finally enter a flotation system, and conveying the fine slime foam on the surface into the foam tank by the foam scraping device and flowing out of a fine slime outlet;

sixthly, testing and transforming the desliming foam grade flowing out of the stirring barrel

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the grade of the raw ore, the scraping amount can be properly increased, and when the fine sludge grade is too high, the scraping amount can be properly reduced;

and seventhly, combining and converging the fine mud outlets in the third step and the fifth step, directly feeding the fine mud outlets into a tailing pump pond, and conveying the fine mud outlets to the downstream to recover magnetite and talc.

2. The desliming method of highly argillaceous high-talc ore according to claim 1, characterized by: the bulb scraping device comprises a first motor, the output end of the first motor is connected with a rotating shaft, and a scraping plate is arranged on the rotating shaft.

3. The desliming method of highly argillaceous high-talc ore according to claim 1, characterized by: the flashboard lifting mechanism comprises a second motor, the output end of the second motor is connected with one end of a threaded rod, the other end of the threaded rod is connected with the flashboard, and the flashboard covers the overflow port.

4. The desliming method of highly argillaceous high-talc ore according to claim 1, characterized by: the height of the bubble blocking plate is 40-80 cm.

The technical field is as follows:

the invention belongs to the technical field of mineral processing, and mainly relates to a desliming method for high-argillization high-talc ore.

Background art:

desliming is a process known to separate fine slimes from coarse sand in a slurry during a beneficiation operation. The slime is an interference factor in any beneficiation process, and directly influences the separation index and beneficiation reagent consumption, so the desliming operation is the key preparation operation of beneficiation methods such as gravity separation, magnetic separation, flotation and the like.

The selected ore of a certain company is high-talc molybdenum ore, tailings of the molybdenum ore enter a tailing dam after iron separation, white tungsten is floated by the company besides the iron separation, a large amount of fatty acid collecting agents are added in the white tungsten flotation process, backwater of the tailing dam is difficult to directly carry out flotation and desliming, and a method capable of directly carrying out flotation without desliming in advance is urgently needed in order to reduce interference factors in the subsequent flotation process.

The invention content is as follows:

in order to overcome the defects, the invention provides a desliming method of high-argillization high-talc ore.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the desliming method of high-argillization high-talc ore comprises the following steps

First, reform transform swirler

Adjusting the position of an overflow pipe of a cyclone to ensure that a bubble blocking plate, a bubble scraping device, a foam groove and a flashboard lifting mechanism can be installed on the cyclone, wherein the bubble blocking plate separates the upper side of the inner cavity of the cyclone, one side of the bubble blocking plate is provided with an ore pulp outlet, the other side of the bubble blocking plate is provided with the bubble scraping device, the ore pulp of the cyclone is gathered at the side, the flashboard lifting mechanism is arranged at the ore pulp outlet and used for controlling the flow velocity of the ore pulp, and the bubble scraping device drives the foam on the upper layer of the ore pulp into the foam groove and flows out of a fine slime outlet;

secondly, reform transform the agitator

The stirring device comprises a stirring barrel, a foam blocking plate, a foam groove and a flashboard lifting mechanism, wherein the stirring barrel is provided with the foam blocking plate, the foam blocking device, the foam groove and the flashboard lifting mechanism;

adding a foaming agent MIBC into raw ore pulp, pumping the raw ore pulp into a swirler through a slurry pump, and controlling the liquid level of the pulp of the swirler by controlling a flashboard lifting mechanism of the modified swirler so as to realize the grooving of the pulp until foam can enter a foam groove through a foam scraping device, separating the upper part of an inner cavity of the modified swirler by a foam blocking plate, enabling the pulp to enter an ore pulp outlet from the lower side of the foam blocking plate, sending fine slime foam on the surface into the foam groove by the foam scraping device, and enabling the fine slime foam to flow out from the fine slime outlet;

fourthly, testing and reforming the desliming foam grade flowing out of the cyclone

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the raw ore grade, the rotating speed of a foam scraping device can be properly increased, the scraping amount is increased, and when the fine sludge grade is too high, the rotating speed of the foam scraping device can be properly reduced, and the scraping amount is reduced;

introducing the ore pulp flowing out of the ore pulp outlet of the improved cyclone into an improved stirring barrel, controlling the liquid level of the ore pulp in the improved stirring barrel by controlling a flashboard lifting mechanism on the improved stirring barrel until the foam can enter a foam tank through a foam scraping device, separating the upper part of an inner cavity of the improved stirring barrel by a foam blocking plate on the improved stirring barrel, allowing the ore pulp to enter the ore pulp outlet from the lower side of the foam blocking plate and finally enter a flotation system, and conveying the fine slime foam on the surface into the foam tank by the foam scraping device and flowing out of a fine slime outlet;

sixthly, testing and transforming the desliming foam grade flowing out of the stirring barrel

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the grade of the raw ore, the scraping amount can be properly increased, and when the fine sludge grade is too high, the scraping amount can be properly reduced;

and seventhly, combining and converging the fine mud outlets in the third step and the fifth step, directly feeding the fine mud outlets into a tailing pump pond, and conveying the fine mud outlets to the downstream to recover magnetite and talc.

The bulb scraping device comprises a first motor, the output end of the first motor is connected with a rotating shaft, and a scraping plate is arranged on the rotating shaft.

The flashboard lifting mechanism comprises a second motor, the output end of the second motor is connected with one end of a threaded rod, the other end of the threaded rod is connected with the flashboard, and the flashboard covers the overflow port.

The height of the bubble blocking plate is 40-80 cm.

Due to the adoption of the technical scheme, the invention has the following advantages:

the desliming method of the highly-argillized high-talc ore provided by the invention can be used for directly performing flotation operation, the desliming process is completed in the flotation process, and pre-desliming is not required, so that the whole flotation process is simplified, the production efficiency is improved, and besides magnet recovery, the desliming product can be used for manufacturing building materials or in the paint industry.

Description of the drawings:

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a top view of the mixing drum of the present invention;

FIG. 3 is a side view of the mixing bowl of the present invention;

FIG. 4 is a side view of a swirler of the present invention;

in the figure: 1. a slurry tank; 2. a pulp inlet; 3. an ore pulp outlet; 4. a fine mud outlet; 5. a foam tank; 6. a bubble blocking plate; 7. a first motor; 8. a squeegee; 9. a rotating shaft; 10. a baffle plate; 11. a shutter plate; 12. a slideway; 13. a second motor.

The specific implementation mode is as follows:

the present invention will be explained in more detail by the following examples, which are intended to disclose all changes and modifications within the scope of the present invention, and the present invention is not limited to the following examples;

the desliming method for the highly-argillized high-talc ore comprises the following steps

First, reform transform swirler

The overflow pipe position of the cyclone is adjusted, so that a bubble blocking plate 6, a bubble scraping device, a foam groove 5 and a flashboard lifting mechanism can be mounted on the cyclone, the bubble blocking plate 6 separates the upper side of the inner cavity of the cyclone, an ore pulp outlet is arranged at one side of the bubble blocking plate 6, the bubble scraping device is arranged at the other side of the bubble blocking plate 6, the ore pulp of the cyclone is gathered at the side, the flashboard lifting mechanism is arranged at the ore pulp outlet 3 and used for controlling the flow velocity of the ore pulp, and the foam on the upper layer of the ore pulp is driven into the foam groove 5 by the bubble scraping device and flows out of a fine slime outlet 4;

secondly, reform transform the agitator

The stirring device is characterized in that a bubble blocking plate 6, a bubble scraping device, a foam tank 5 and a gate plate lifting mechanism are arranged on a stirring barrel, a matched frequency converter is arranged on a stirring motor, so that the stirring speed is reduced, the power of the stirring barrel motor is 132KW, the frequency converter adopts Jintian JTE320 series, the power is 250KW, the bubble blocking plate 6 separates the upper side of an inner cavity of the stirring barrel, an ore pulp outlet 3 is arranged on one side of the bubble blocking plate 6, the other side of the bubble blocking plate is provided with the bubble scraping device, the gate plate lifting mechanism is arranged at the ore pulp outlet 3 and used for controlling the flow rate of ore pulp, and the bubble scraping device drives foam on the upper layer of the ore pulp into the foam tank 5 and flows out of a fine slime outlet 4;

adding a foaming agent MIBC into raw ore pulp, pumping the raw ore pulp into a swirler through a slurry pump, controlling the liquid level of the pulp of the swirler by controlling a flashboard lifting mechanism of the modified swirler so as to realize the grooving of the ore pulp until foam can enter a foam groove 5 through a foam scraping device, separating the upper part of an inner cavity of the modified swirler by a foam blocking plate 6, enabling the ore pulp to enter an ore pulp outlet from the lower side of the foam blocking plate 6, sending fine slime foam on the surface into the foam groove 5 by the foam scraping device, and enabling the fine slime foam to flow out from a fine slime outlet 4;

fourthly, testing and reforming the desliming foam grade flowing out of the cyclone

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the raw ore grade, the rotating speed of a foam scraping device can be properly increased, the scraping amount is increased, and when the fine sludge grade is too high, the rotating speed of the foam scraping device can be properly reduced, and the scraping amount is reduced;

introducing the ore pulp flowing out of the ore pulp outlet of the improved cyclone into an improved stirring barrel, controlling the ore pulp liquid level in the improved stirring barrel by controlling a flashboard lifting mechanism on the improved stirring barrel until the foam can enter a foam tank 5 through a foam scraping device, separating the upper part of an inner cavity of the improved stirring barrel by a foam blocking plate 6 on the improved stirring barrel, allowing the ore pulp to enter an ore pulp outlet 3 from the lower side of the foam blocking plate 6 and finally enter a flotation system, and conveying the fine slime foam on the surface into the foam tank 5 by the foam scraping device and flowing out of a fine slime outlet 4;

sixthly, testing and transforming the desliming foam grade flowing out of the stirring barrel

Observing the color of desliming foam, drying and sampling the deslimed fine sludge product every 2 hours, and determining by using a handheld fluorescence analyzer, wherein when the fine sludge grade is close to the grade of the raw ore, the scraping amount can be properly increased, and when the fine sludge grade is too high, the scraping amount can be properly reduced;

and seventhly, combining and converging the fine mud outlets 4 in the third step and the fifth step, directly feeding the fine mud outlets into a tailing pump pond, and conveying the fine mud outlets to the downstream to recover magnetite and talc.

The flow and the concentration of the deslimed product are detected, and the Mo and talcum contents of the deslimed product are measured simultaneously

Wherein the concentration of the deslimed product is 18%, the molybdenum grade is basically equivalent to the raw ore grade and is 0.15%, the talc content is about 55%, the flow rate is about 120m for double-row high-speed cultivation, the ore specific gravity is 2.85 t for double-row high-speed cultivation, the magnet grade is 2%, and the processing capacity is 12000 t per day.

Wherein desliming yield =120 m/h 1.13 t/c 24 x 0.18/12000=4.88%

Talc recovery =4.88 × 55/12=22.36%

Besides magnet recovery, the part of deslimed products can also be used for manufacturing building materials or in the paint industry.

It should be noted that the slurry tank 1 is a container, the slurry tank 1 may be an inner cavity of a mixing tank or an inner cavity of a cyclone, the container is only used for containing slurry and fixing other components, and the slurry tank 1 may be replaced by any equipment which can contain slurry and needs to remove bubbles. The foam blocking plate 6 separates the upper part of the slurry tank 1, but the lower part is communicated, one side of the foam blocking plate is used for discharging slurry, and the other side of the foam blocking plate is used for feeding slurry and scraping foam.

The concrete modification of the stirring barrel or the cyclone is as follows: be equipped with into thick liquid mouth 2 and ore pulp export 3 on the ore pulp groove 1, it is equipped with and blocks bubble board 6 to be close to ore pulp export 2 department on 1 inner wall of ore pulp groove, be equipped with in the ore pulp groove 1 and scrape the bubble device, the one side of scraping the bubble device is equipped with foam tank 5, scrape the bubble device and can drive the foam on ore pulp upper portion in the ore pulp groove 1 and arrive in foam tank 5, be equipped with the essence of mud export 4 on the foam tank 5, ore pulp export 3 department is equipped with baffle 10, is equipped with the overflow mouth of overflow ore pulp on the baffle 10, and overflow mouth department is equipped with flashboard hoist mechanism, the opening size of overflow mouth can be controlled to flashboard hoist mechanism, and then the overflow speed of control ore pulp, and the cooperation blocks bubble board 6, and the liquid level of ore pulp in the adjustment ore pulp groove 1 ensures that the bubble on ore pulp upper portion is in the treatment range of scraping the bubble device.

After the ore pulp enters the ore pulp tank 1 from the pulp inlet 2, bubbles can be generated on the upper layer of the ore pulp due to the action of a foaming agent and a collecting agent, the bubble blocking plate 6 separates the upper layer of the ore pulp along with the rising of the liquid level of the ore pulp, the opening size of the overflow port on the baffle 10 at the ore pulp outlet 3 is controlled by the flashboard lifting mechanism, the liquid level of the ore pulp gradually rises along with the adjustment of the overflow port until the foam in the ore pulp is in the working range of the foam scraping device, and the bubbles are all positioned on one side of the bubble blocking plate 6 due to the action of the bubble blocking plate 6, so that the flashboard lifting mechanism is controlled to ensure that the bubbles cannot flow into one side of the ore pulp outlet 3 from the lower side of the bubble blocking plate 6.

The foam scraping device drives the air bubbles at the upper part of the ore pulp into the foam groove 5 and then flows out from the fine sludge outlet 4.

The froth scraping device comprises a first motor 7, the output end of the first motor 7 is connected with a rotating shaft 9, a scraper 8 is arranged on the rotating shaft 9, the first motor 7 can be a variable frequency motor, the rotating speed can be adjusted according to the amount of froth, and the scraper 8 moves circularly along with the rotating shaft 9 to drive the froth in the slurry tank 1 to the froth tank 5.

The flashboard lifting mechanism comprises a second motor 13, the output end of the second motor 13 is connected with one end of a threaded rod, the other end of the threaded rod is connected with the flashboard 11, and the flashboard 11 covers the overflow port.

The slide ways 12 are arranged on the baffle plates 10 on two sides of the overflow port, the flashboards 11 move up and down in the slide ways, and if the slide ways 12 are not arranged, the flashboards 11 can swing back and forth under the impact of ore pulp, and a threaded rod and the second motor 13 can be damaged.

The height of the bubble blocking plate 6 is 40-80cm, and preferably 50 cm.

The bottom of foam groove 5 is the inclined plane, and the smart export 4 of mud also sets up for the slope, makes things convenient for the outflow of foam.

The details of the above are not described in detail since they are prior art.