Separating flotation device

Abstract

The utility model provides a separation flotation device. The separation flotation device comprises an inner cylinder, an outer cylinder and a screening cavity between the inner cylinder and the outer cylinder. An adsorption pipe is arranged around the inner wall of the outer cylinder, the adsorption pipe is located at the part, higher than the inner cylinder, of the upper part of the outer cylinder, and a plurality of adsorption holes are formed in the adsorption pipe at intervals; a central cylinder is arranged in the middle of the inner cylinder, a foam maker is arranged below the central cylinder, and a breather pipe is connected to the foam maker; the central cylinder comprises a columnar section and a conical guide section at the lower part of the columnar section, and the large opening end of the guide section faces downwards; a plurality of sorting channels are arranged at the upper end of the center cylinder, partition plates are arranged in the sorting channels, and material passing spaces are reserved between the partition plates and bottom plates of the sorting channels. An inclined discharge slope is arranged at the bottom of the outer cylinder, and a discharge port is formed in the lower position of the discharge slope; a liquid separating screen is correspondingly arranged above the sorting channel, and a liquid supplementing device is arranged on the upper side of the liquid separating screen. The flotation device is compact in structure, mineral particles with high hydrophobicity are separated from ore pulp through the buoyancy of bubbles, and the flotation effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of mineral processing equipment technology, and in particular relates to a separation flotation device. Background Technology

[0002] In mineral processing, it is necessary to first separate the slime and rough ore to facilitate subsequent processing of the rough ore. Currently, most of the initial separation is done using flotation devices. Flotation devices are used to separate minerals based on the different physicochemical properties of the mineral surface. Although there are many types of flotation devices on the market, they use agitation and aeration to selectively fix certain mineral particles onto the bubbles, which are then scraped off with the foam, while the rest remain in the slurry, thus achieving the purpose of mineral separation. The commonly used technology in the present field is the stirred flotation machine, which has a complex structure, large footprint, high energy consumption, and less than ideal separation efficiency. Therefore, it is necessary to optimize and improve it. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and proposes a separation flotation device.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A separation flotation device includes an inner cylinder, an outer cylinder surrounding the inner cylinder, and a screening chamber between the inner and outer cylinders. The top of the outer cylinder is higher than the top of the inner cylinder, and an adsorption tube is arranged around the inner wall of the outer cylinder, located at the upper part of the outer cylinder above the inner cylinder. Several suction holes are spaced apart on the adsorption tube. A central cylinder is located in the middle of the inner cylinder, and a foamer is located below the central cylinder, connected to a vent pipe. The central cylinder includes a columnar section and a conical guide section at the lower part of the columnar section, with the larger opening end of the guide section facing downwards. Several separation channels are provided at the upper end of the central cylinder, and baffles are provided within the separation channels, with a material passage space between the baffles and the bottom plate of the separation channels. One end of the separation channel passes through the inner cylinder and extends into the screening chamber, and the height of the bottom plate of the separation channel gradually decreases from one end of the central cylinder to one end of the inner cylinder. The bottom of the outer cylinder has an inclined discharge slope, and a discharge outlet is located at the lower part of the discharge slope. A separating screen is provided above the corresponding separation channel, and a replenishment device is provided on the upper side of the separating screen.

[0006] Furthermore, the adsorption tube is connected to an external pipeline, and a water pump is installed on the external pipeline.

[0007] Furthermore, the replenishment device includes a replenishment tube with a funnel at the lower end. The funnel has a conical structure with its small opening facing downwards.

[0008] Furthermore, a connecting flange is provided on the outlet, and the connecting flange has several connecting holes.

[0009] Furthermore, the upper end of the baffle plate is flush with the top of the side plates of the sorting channel.

[0010] Furthermore, the bottom plate of the sorting channel has a V-shaped structure.

[0011] Furthermore, the side plate of the sorting channel is provided with an adsorption tube slot.

[0012] Furthermore, each of the sorting channels is evenly distributed along the outer circumference of the central cylinder.

[0013] Compared with existing technologies, the present invention has the following advantages:

[0014] This invention features a compact structure where the slurry material rises vertically within the column as bubbles ascend. The slurry material reacts with the reaction liquid in the reaction chamber, and the mixture surges upward from the central cylinder, allowing for more thorough contact between the mineral particles and the bubbles. The buoyancy of the bubbles is used to separate highly hydrophobic mineral particles from the slurry, improving the flotation effect. It also effectively utilizes the vertical space of the equipment and has a small footprint. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by this invention;

[0017] Figure 2 Top view created for this invention;

[0018] Figure 3 This invention provides an internal structural schematic diagram;

[0019] Figure 4 A schematic diagram showing the invention after removing the fluid replenishment device;

[0020] Figure 5 A schematic diagram illustrating the inner cylinder portion of this invention;

[0021] Figure 6 A schematic diagram illustrating the liquid separation sieve section of this invention;

[0022] Figure 7 This is a schematic diagram of the sorting channel section in this invention. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] A separation flotation device, such as Figures 1 to 7 As shown, the system includes an inner cylinder 1, an outer cylinder 2 surrounding the inner cylinder, and a screening chamber 3 between the inner and outer cylinders. The top of the outer cylinder is higher than the top of the inner cylinder, and an adsorption tube 4 is arranged around the inner wall of the outer cylinder. Several suction holes are spaced apart on the adsorption tube, which is connected to an external pipeline, on which a water pump is installed. Preferably, the suction holes are evenly distributed around the axis of the inner cylinder. The adsorption tube is located in the upper part of the outer cylinder, above the inner cylinder.

[0028] A central cylinder 6 is located in the middle of the inner cylinder, and a foamer 7 is located below the central cylinder. The foamer includes a foaming cylinder, to which a vent pipe 8 and a feed pipe 28 are connected. The vent pipe extends outwards from the inner cylinder and the outer cylinder in sequence, and its end extending outwards from the outer cylinder is connected to a compressor or air pump. A foaming perforated plate is provided inside the foaming cylinder, positioned above the vent pipe. A reaction chamber is formed inside the cylinder above the foaming perforated plate, and the feed pipe communicates with this reaction chamber. The feed pipe extends outwards from the inner cylinder and the outer cylinder in sequence. Sealing is applied between the vent pipe and the inner cylinder, between the vent pipe and the outer cylinder, between the feed pipe and the inner cylinder, and between the feed pipe and the outer cylinder.

[0029] The central cylinder includes a columnar section 9 and a conical guide section 10 at the lower part of the columnar section. The larger opening end of the guide section faces downward, and the distance between the lower end of the guide section and the upper end of the foaming cylinder is no more than 10 mm. Several sorting channels 11 are provided at the upper end of the central cylinder; preferably, each sorting channel is evenly distributed along the outer circumference of the central cylinder. In a further improved design, a constricted section 29 is provided at the upper end of the columnar section. This constricted section has a conical structure, with its smaller opening end facing upward. Similarly, a constricted section is also provided at the upper end of the foaming cylinder. This structural design ensures sufficient contact between the slurry raw material and the reaction liquid.

[0030] To improve the stability of the adsorption tube installation, an adsorption tube slot 27 can be provided on the side plate 25 of the sorting channel. A baffle 12 is provided inside the sorting channel, with a material passage space between the baffle and the bottom plate 26 of the sorting channel. One end of the sorting channel extends into the screening chamber through the inner cylinder, and the height of the bottom plate of the sorting channel gradually decreases from the central cylinder end to the inner cylinder end. A functional groove 24 that cooperates with the sorting channel is provided at the upper end of the inner cylinder, and the bottom of the functional groove is V-shaped. Typically, the upper end of the baffle is flush with the tops of the side plates of the sorting channel. Preferably, the bottom plate of the sorting channel has a V-shaped structure.

[0031] The outer cylinder has an inclined discharge slope 13 at its bottom, with a discharge port 14 located at the lower part of the slope. A separating screen 15 is located above the corresponding sorting channel, and a replenishing device 16 is located on the upper side of the separating screen. The separating screen includes an arc-shaped screen body 20 with several screen holes 21 arranged on it. For example, a connecting flange 19 is provided at the discharge port, with several connecting holes. A solids discharge pipe is connected to the connecting flange, and a discharge port control valve is provided on the solids discharge pipe. The discharge port can be opened as needed to allow solids to be discharged. Even if some solids fall into the bottom of the inner cylinder through the gaps between the sorting channels, this is permissible; the inner cylinder can be cleaned periodically.

[0032] In one optional embodiment, the replenishment device includes a replenishment pipe 17, with a funnel 18 at its lower end. The funnel has a conical structure with its small opening facing downwards. In a further improved embodiment, a support frame 5 is provided on the upper side of the sieve body, forming a fan-shaped liquid distribution space 22 between adjacent support frames. The funnel has a water supply port corresponding to each liquid distribution space. A support foot 23 is provided at the lower part of the sieve body and is installed at the top of the outer cylinder.

[0033] In the mineral processing process, compressed gas is introduced into the foaming cylinder through the vent pipe, and then mineral slurry is introduced into the reaction chamber of the foaming cylinder through the feed pipe. The mineral slurry reacts with the reaction liquid in the reaction chamber, and the mixture rises from the central cylinder. The buoyancy of the bubbles separates the highly hydrophobic mineral particles from the slurry. These particles then form a foam layer and are removed by the adsorption pipe, while the solids fall into the screening chamber through the sorting channel, thus achieving the separation of mineral particles from waste rock.

[0034] Furthermore, during the screening of mineral slurry raw materials, the reaction liquid is replenished through the replenishment pipe, and the reaction liquid is evenly dispersed through the separating screen, which increases the contact opportunity between the reaction liquid and the mineral particles in the mineral slurry raw materials and improves the separation efficiency of mineral particles.

[0035] This invention features a compact structure, where the slurry raw material rises vertically within the column as the bubbles ascend, resulting in more thorough contact between the mineral particles and the bubbles, thus improving the flotation effect. It also effectively utilizes the vertical space of the equipment and has a small footprint.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A separation flotation device, characterized in that: The system includes an inner cylinder, an outer cylinder surrounding the inner cylinder, and a screening chamber between the inner and outer cylinders. The top of the outer cylinder is higher than the top of the inner cylinder, and an adsorption tube is arranged around the inner wall of the outer cylinder, located at the upper part of the outer cylinder above the inner cylinder. Several suction holes are spaced apart on the adsorption tube. A central cylinder is located in the middle of the inner cylinder, and a foamer is located below the central cylinder, with a vent pipe connected to the foamer. The central cylinder includes a columnar section and a conical guide section at the lower part of the columnar section, with the larger opening end of the guide section facing downwards. Several sorting channels are located at the upper end of the central cylinder, and baffles are installed in the sorting channels, with a material passage space between the baffles and the bottom plate of the sorting channel. One end of the sorting channel passes through the inner cylinder and extends into the screening chamber, and the height of the bottom plate of the sorting channel gradually decreases from one end of the central cylinder to one end of the inner cylinder. The bottom of the outer cylinder has an inclined discharge slope, and a discharge port is located at the lower part of the discharge slope. A liquid separator is located above the corresponding sorting channel, and a liquid replenishment device is located on the upper side of the liquid separator.

2. The separation flotation device according to claim 1, characterized in that: The adsorption tube is connected to an external pipeline, and a water pump is installed on the external pipeline.

3. The separation flotation device according to claim 1, characterized in that: The fluid replenishment device includes a fluid replenishment tube with a funnel at the lower end. The funnel has a conical structure with its small opening facing downwards.

4. The separation flotation device according to claim 1, characterized in that: The outlet is provided with a connecting flange, and the connecting flange is provided with several connecting holes.

5. The separation flotation device according to claim 1, characterized in that: The upper part of the baffle plate is flush with the top of the side plates of the sorting channel.

6. The separation flotation device according to claim 1, characterized in that: The bottom plate of the sorting channel has a V-shaped structure.

7. The separation flotation device according to claim 1, characterized in that: The side plate of the sorting channel is equipped with an adsorption tube slot.

8. A separation flotation device according to claim 1, characterized in that: Each of the sorting channels is evenly distributed along the outer circumference of the central cylinder.

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