A beneficiation froth tank for beneficiation

Abstract

The utility model relates to mineral flotation technical field discloses a kind of ore dressing froth trough for ore dressing, including ore dressing groove, the upper right of the ore dressing groove is provided with opening, the ore dressing groove is equipped with flotation mechanism in adjacent opening place, the top of the ore dressing groove is equipped with driving mechanism, the inside of the ore dressing groove is equipped with agitating mechanism, the bottom end of the ore dressing groove inner wall is equipped with spoiler, the right side of the outer wall of the ore dressing groove is welded with support, the support is fixedly connected with coarse groove, the top edge of the coarse groove is fixedly connected with arc plate, the arc plate is located in the right side of opening. The utility model is provided with arc plate, coarse groove and opening, arc plate is fixedly connected to the top edge of coarse groove, the upper right of coarse groove is extended and is equipped with the opening of half-arc shape, the opening is curved upwards, can guide flow in the process of ore dressing foam floating, avoid liquid overflow from opening place due to ore pulp surge, improve flotation efficiency and the precision of foam separation.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral froth flotation, in particular to a mineral processing froth tank for beneficiation. Background Art

[0002] A mineral processing froth tank is mainly used for separating useful minerals from gangue minerals in pulp during flotation processes, and is one of the core equipment in the beneficiation flow. The device generally comprises a tank body, a stirring device, an aeration system and a froth collection device. By introducing gas into the tank body and matching with added collectors and frothers, useful minerals adhere to the surface of bubbles, float upward and form a froth layer, and then the froth is centrally collected to the outside of the tank body by a froth scraping mechanism, so as to realize the separation and extraction of minerals.

[0003] However, there are still some problems in the use process of current froth tanks, for example: First, the tank body does not effectively limit the flow direction of floating froth, which easily causes liquid to overflow from the opening when the pulp churns violently or is stirred, which not only causes froth loss, but also affects the stability and separation accuracy of the flotation process; Second, some traditional froth tanks adopt independent pipelines or external pipe network structures for aeration, which have complicated connection and uneven distribution, and have the problems of poor sealing and multiple leakage points; Third, most of the spoilers used to improve the flow state of pulp are simple deflectors directly welded on the inner wall of the tank body, which are inconvenient to disassemble and assemble, and easily form dead corners during cleaning.

[0004] Therefore, there is an urgent need for a mineral processing froth tank for beneficiation to solve the above technical defects. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a mineral processing froth tank for beneficiation, so as to solve the problems raised in the above background technology that froth has no flow guide restriction and is easy to overflow, the aeration structure is unreasonable in arrangement and prone to leakage, and the spoiler cannot be disassembled and easily forms dead corners.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a mineral processing froth tank for beneficiation, comprising a beneficiation tank, an opening is arranged at the upper right of the beneficiation tank, a flotation mechanism is installed at the position of the beneficiation tank adjacent to the opening, a driving mechanism is installed at the top end of the beneficiation tank, a stirring mechanism is arranged inside the beneficiation tank, a spoiler is installed at the bottom end of the inner wall of the beneficiation tank, a support is welded on the outer wall of the beneficiation tank near the right side, a rough froth tank is fixedly connected to the support, an arc plate is fixedly connected to the top edge of the rough froth tank, and the arc plate is located on the right side of the opening.

[0007] As a further technical solution of the utility model, the spoiler comprises a vertical plate, the vertical plate is fixed at the four inner corners and the midline positions of four walls of the beneficiation tank, bolts are fixedly connected between the vertical plate and the beneficiation tank, and the vertical plate is in an inverted T shape.

[0008] As a further technical solution of the present utility model, the stirring mechanism comprises a frame fixed to the inner bottom end of the mineral processing tank, an impeller is rotatably connected in the frame, a stirring shaft is fixedly connected to the center of the top end of the impeller, a pressure cover is press-fitted on the top end of the frame, a shaft hole is opened in the center of the pressure cover, and the stirring shaft passes through the shaft hole and extends upward to above the mineral processing tank.

[0009] As a further technical solution of the present utility model, a set of air inlet holes and a plurality of sets of shaft holes are opened in the pressure cover, the air inlet holes are communicated with the shaft holes, the plurality of sets of shaft holes are annularly distributed in the pressure cover, the air inlet holes are communicated with an aeration pipe, and the aeration pipe is connected upward to an external aeration device.

[0010] As a further technical solution of the present utility model, the driving mechanism comprises a fixing frame fixed to the top of the mineral processing tank, a transmission shaft is rotatably connected to the middle part of the top end of the fixing frame, the bottom end of the transmission shaft is fixedly connected with the top end of the stirring shaft, a driving motor is fixedly connected to the left side of the top end of the fixing frame, and a transmission sprocket and a chain belt are drivingly connected between the output shaft of the driving motor and the transmission shaft.

[0011] As a further technical solution of the present utility model, the flotation mechanism comprises a bearing installed on the upper right side of the inner wall of the mineral processing tank, a flotation frame is rotatably connected in the bearing, a reduction motor is fixedly connected to the rear of the outer wall of the mineral processing tank, and the output shaft of the reduction motor is fixedly connected with the rear end of the flotation frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: by providing an arc plate, a rough tank and an opening, the arc plate is fixedly connected to the top edge of the rough tank, a semi-curved opening extends from the upper right of the rough tank, and the opening is curved upward, which can guide the flow during the floating process of mineral processing foam, avoid liquid overflow from the opening caused by pulp surging, and improve the flotation efficiency and the accuracy of foam separation; By providing the stirring mechanism, the pressure cover is used to seal the stirring shaft and also serves as a gas distribution cavity, forming multi-point annular diffusion bubbles, so that the bubbles are in full contact with the pulp, improving the reaction efficiency of collectors and frothers, reducing leakage caused by too many connecting pipes, having a simple structure and uniform bubble distribution, and improving the adhesion efficiency on the mineral surface.

[0013] By providing the spoiler structure, the vertical plate is in an "inverted T-shaped" structure, and is detachably fixed in the tank body by bolts, replacing the original welding method, which is convenient for daily maintenance and replacement, meanwhile reduces cleaning dead corners, and improves the cleaning efficiency inside the tank body. Description of Drawings

[0014] Figure 1 is a side sectional structural schematic diagram of the present utility model; Figure 2 is a top-view structural schematic diagram of the pressure cover of the present utility model; Figure 3 is a schematic top view structural diagram of the present utility model; Figure 4 is the Figure 1 enlarged front structural schematic diagram of position A in the present utility model.

[0015] In the figure: 1. ore dressing tank; 2. opening; 3. arc plate; 4. coarse separation tank; 5. support; 6. spoiler; 7. stirring mechanism; 8. driving mechanism; 9. flotation mechanism; 601. vertical plate; 602. bolt; 701. impeller; 702. gland; 703. air inlet; 704. stirring shaft; 705. frame; 706. aeration pipe; 707. shaft hole; 801. fixing frame; 802. driving motor; 803. transmission sprocket and chain belt; 804. transmission shaft; 901. flotation frame; 902. bearing; 903. gear reduction motor. Detailed Description of the Embodiments

[0016] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0017] Please refer to Figure 1-4 , an embodiment provided by the present utility model: a ore dressing foam tank for ore dressing, comprising an ore dressing tank 1, an opening 2 arranged at the upper right of the ore dressing tank 1, a flotation mechanism 9 installed at the position of the ore dressing tank 1 adjacent to the opening 2, a driving mechanism 8 installed at the top end of the ore dressing tank 1, a stirring mechanism 7 arranged inside the ore dressing tank 1, a spoiler installed at the bottom end of the inner wall of the ore dressing tank 1, a support 5 welded at the position close to the right side of the outer wall of the ore dressing tank 1, a coarse separation tank 4 fixedly connected at the support 5, an arc plate 3 fixedly connected at the top edge of the coarse separation tank 4, and the arc plate 3 located at the right side of the opening 2; Specifically, as shown in Figure 1 and Figure 3 , the arc plate is fixedly connected to the top edge of the coarse separation tank, and a semi-arc opening is extended at the upper right of the coarse separation tank. The opening is curved upward, which can play a guiding role, prevent liquid from overflowing from the opening caused by surging ore pulp, and at the same time, realize foam collection under the stirring of the flotation mechanism, and improve flotation efficiency.

[0018] the spoiler comprises a vertical plate 601, the vertical plate 601 is fixed at the four inner corners and the middle line of the four walls of the ore dressing tank 1, bolts 602 are fixedly connected between the vertical plate 601 and the ore dressing tank 1, and the vertical plate 601 is in a shape of "丄"; Specifically, as shown in Figure 1 and Figure 4As shown, the spoiler 6 forms multiple groups of turbulence zones during the flow of the mineral processing liquid, prevents particle deposition, enhances the flow uniformity of the pulp, thereby improving the separation effect in the mineral processing process.

[0019] Furthermore, the vertical plates 601 are of an "丄"-shaped structure, uniformly distributed at the four corners and the middle line position of the inner wall of the mineral processing tank 1, and are detachably fixed in the tank body through bolts 602. This replaces the original welding method, facilitates daily maintenance and replacement, reduces cleaning dead corners, and improves the cleaning efficiency inside the tank body.

[0020] The stirring mechanism 7 comprises a frame 705 fixed at the bottom end in the mineral processing tank 1, an impeller 701 is rotatably connected in the frame 705, a stirring shaft 704 is fixedly connected to the center of the top end of the impeller 701, a pressure cover 702 is pressed on the top end of the frame 705, a shaft hole 707 is opened in the center of the pressure cover 702, the stirring shaft 704 penetrates the shaft hole 707 and extends upward to above the mineral processing tank 1, a group of air inlet holes 703 and multiple groups of shaft holes 707 are opened in the pressure cover 702, the air inlet holes 703 communicate with the shaft holes 707, the multiple groups of shaft holes 707 are annularly distributed in the pressure cover 702, the air inlet holes 703 communicate with an aeration pipe 706, and the aeration pipe 706 is connected upward to an external aeration device; Specifically, as shown in Figure 1 , Figure 2 and Figure 3 , the frame 705 is fixed at the bottom of the mineral processing tank 1 and plays a role in positioning the impeller 701. The pressure cover 702 is provided with a shaft hole 707 for the stirring shaft 704 to pass through. The upper end of the stirring shaft 704 is connected with a transmission shaft 804, and the lower end is connected with the impeller 701, which performs directional stirring at the bottom during flotation operation, facilitating sufficient mixing of bubbles and pulp, preventing deposition at the tank bottom, improving reaction activity. Meanwhile, the frame 705 can make equipment maintenance or personnel entering the mineral processing tank 1 for operation safer, and reduce the risk of accidental injury caused by the exposed impeller 701.

[0021] Furthermore, the pressure cover 702 is a hollow cavity structure, the air inlet holes 703 communicate with the annularly distributed shaft holes 707, gas is conveyed from the external aeration device through the aeration pipe 706, forming multi-point annular diffuse bubbles, realizing sufficient contact between bubbles and pulp, improving the reaction efficiency of collectors and frothers. Aeration is only arranged through the pressure cover 702, reducing leakage caused by excessive connecting pipes, the structure is concise, the bubbles are uniformly distributed, and the adhesion efficiency on the mineral surface is improved.

[0022] The driving mechanism 8 comprises a fixing frame 801 fixed at the top of the mineral processing tank 1, a transmission shaft 804 is rotatably connected to the middle of the top end of the fixing frame 801, the bottom end of the transmission shaft 804 is fixedly connected with the top end of the stirring shaft 704, a driving motor 802 is fixedly connected to the left side of the top end of the fixing frame 801, and a transmission sprocket and a chain belt 803 are in transmission connection between the output shaft of the driving motor 802 and the transmission shaft 804; Specifically, as Figure 1and Figure 3 As shown, the drive motor 802 is fixed on the top left side of the fixed frame 801. The output power drives the drive shaft 804 to rotate through the transmission sprocket and chain belt 803, and drives the stirring shaft 704 to stir the bottom impeller 701. The power transmission is stable, which not only avoids the motor being directly exposed to the wet slurry environment and extends its service life, but also makes the stirring effect continuous and uniform, so that the flotation reaction is more complete and the metal mineral recovery rate is improved.

[0023] The flotation mechanism 9 includes a bearing 902 installed on the upper right side of the inner wall of the ore dressing tank 1. A flotation frame 901 is rotatably connected inside the bearing 902. A reduction motor 903 is fixedly connected to the rear of the outer wall of the ore dressing tank 1. The output shaft of the reduction motor 903 is fixedly connected to the rear end of the flotation frame 901. Specifically, such as Figure 1 and Figure 3 As shown, bearing 902 is installed on the upper right inner wall of the mineral processing tank 1 to support the rotation of flotation frame 901. The rear end of flotation frame 901 is connected to the output shaft of geared motor 903 to realize rotation control, simulate the action of manual foam scraping, and collect the floating foam in a directional manner to the opening 2, thereby improving the efficiency of foam collection.

[0024] Working principle: Before the device starts operating, the drive motor 802 is started by the external control system. The drive motor 802 drives the drive shaft 804 to rotate through the transmission sprocket and chain belt 803. The drive shaft 804 then drives the agitator shaft 704 and impeller 701 to rotate. The impeller 701 rotates in the frame 705, forming bottom agitation. At the same time, the external aeration device supplies air to the aeration pipe 706. The gas enters the inside of the pressure cover 702 through the air inlet 703 and diffuses into the interior of the mineral processing tank 1 through the annularly distributed shaft holes 707 to mix with the slurry. The agitator shaft 704 passes through the shaft holes 707 on the pressure cover 702. Connected to the drive shaft 804, the bottom agitation and top drive are linked. The frame 705 serves as a positioning and support function. The pressure cover 702 is used to seal the agitator shaft 704 and also serves as a gas distribution chamber. During the mineral processing, the slurry reacts and separates from the foam inside the mineral processing tank 1. The vertical plates 601 in the baffle plate 6 form a turbulence area through the arrangement of the inner wall, interfering with the flow path of the slurry. During the foam floating process, the reduction motor 903 in the flotation mechanism 9 drives the flotation frame 901 to rotate through the bearing 902, scraping the foam towards the upper right opening 2. The foam enters the coarse tank 4 through the opening 2 and is collected by the guide plate 3.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mineral processing foam tank, comprising a mineral processing tank (1), characterized in that: An opening (2) is provided at the upper right of the mineral separation tank (1), a flotation mechanism (9) is installed on the mineral separation tank (1) adjacent to the opening (2), a driving mechanism (8) is installed at the top end of the mineral separation tank (1), a stirring mechanism (7) is arranged inside the mineral separation tank (1), a spoiler (6) is installed at the bottom end of the inner wall of the mineral separation tank (1), a support (5) is welded on the outer wall of the mineral separation tank (1) near the right side, a roughing tank (4) is fixedly connected to the support (5), an arc plate (3) is fixedly connected to the top edge of the roughing tank (4), and the arc plate (3) is located on the right side of the opening (2).

2. The mineral processing foam tank according to claim 1, characterized in that: The spoiler (6) comprises vertical plates (601), the vertical plates (601) are fixedly arranged at four corners of the inner wall and the middle line of four walls of the mineral separation tank (1), bolts (602) are fixedly connected between the vertical plates (601) and the mineral separation tank (1), and the vertical plates (601) are in an inverted T shape (in Chinese character "丄" shape).

3. A mineral processing foam tank according to claim 1, characterized in that: The stirring mechanism (7) comprises a frame (705) fixed at the inner bottom end of the mineral separation tank (1), an impeller (701) is rotatably connected in the frame (705), a stirring shaft (704) is fixedly connected to the center of the top end of the impeller (701), a pressing cover (702) is pressed on the top end of the frame (705), a shaft hole (707) is opened in the center of the pressing cover (702), and the stirring shaft (704) passes through the shaft hole (707) and extends upward to above the mineral separation tank (1).

4. A mineral processing foam tank according to claim 3, characterized in that: A set of air intake holes (703) and a plurality of sets of shaft holes (707) are opened in the pressing cover (702), the air intake holes (703) communicate with the shaft holes (707), the plurality of sets of shaft holes (707) are annularly distributed in the pressing cover (702), the air intake holes (703) communicate with an aeration pipe (706), and the aeration pipe (706) is connected upward to an external aeration device.

5. A mineral processing foam tank according to claim 1, characterized in that: The driving mechanism (8) comprises a fixing frame (801) fixed at the top of the mineral separation tank (1), a transmission shaft (804) is rotatably connected to the middle of the top end of the fixing frame (801), the bottom end of the transmission shaft (804) is fixedly connected with the top end of the stirring shaft (704), a driving motor (802) is fixedly connected to the left side of the top end of the fixing frame (801), and a transmission sprocket and a chain belt (803) are in transmission connection between the output shaft of the driving motor (802) and the transmission shaft (804).

6. A mineral processing foam tank according to claim 1, characterized in that: The flotation mechanism (9) comprises a bearing (902) installed on the upper right side of the inner wall of the mineral separation tank (1), a flotation frame (901) is rotatably connected in the bearing (902), a speed reducing motor (903) is fixedly connected to the rear of the outer wall of the mineral separation tank (1), and the output shaft of the speed reducing motor (903) is fixedly connected with the rear end of the flotation frame (901).

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