Enhanced stirring device for dosing

Abstract

The utility model relates to a dosing reinforced stirring device, and belongs to the field of preparation equipment. The device comprises a stirring tank (11), a dosing pipe (3), an ore feeding pipe (2) and a preparation tank (2), the dosing pipe (3) and the ore feeding pipe (2) are arranged on the preparation tank (2), an inclined overflow pipe (4) is arranged on the upper portion of the stirring tank (11), and an inclined lower port of the overflow pipe (4) is communicated with the upper portion of the preparation tank (2); the outer wall of the preparation tank (2) is connected with an inclined return pipe (5); and an inclined lower port of the return pipe (5) is communicated with the lower part of the stirring tank (11). The device is combined with the ore pulp preparation tank (2), the internal and external circulation principle is utilized, the acting distance, path and time of agents and minerals are increased, the collision probability of the agents and the minerals is high, the combination degree is high, and the positive effect on flotation is achieved. The problem that an existing stirring barrel (11) is low in stirring efficiency in order to guarantee flotation indexes, prolong stirring time and reduce ore feeding amount is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of dosing reinforced stirring devices, belong to mineral processing equipment field. BACKGROUND

[0002] Flotation feed must have suitable, stable concentration, and reagent needs to have sufficient contact time with mineral. Therefore, flotation dosing stirring is the important process of reagent and mineral interaction, and stirring time affects the degree of reagent and mineral combination, affects flotation index, affects reagent dosage, and the degree of reagent and mineral combination is low when stirring time is short, and the degree of reagent and mineral combination is high when stirring time is long, which has positive effect on flotation.

[0003] The conventional stirring barrel directly feeds mineral and reagent into the barrel, and the degree of reagent and mineral combination is low, which affects flotation index and has negative effect on flotation. In order to ensure the stirring time of mineral, the feeding amount of mineral is reduced, which causes low stirring efficiency. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the existing stirring barrel needs to ensure flotation index, prolong stirring time and reduce the feeding amount of mineral, which causes low stirring efficiency.

[0005] The utility model solves the technical problem by adopting the following technical scheme: a dosing reinforced stirring device includes a stirring barrel, a dosing pipe and a mineral feeding pipe, and further includes a preparation tank, the dosing pipe and the mineral feeding pipe are arranged on the preparation tank, an inclined overflow pipe is arranged on the upper portion of the stirring barrel, and the inclined lower end of the overflow pipe is communicated with the upper portion of the preparation tank; an inclined backflow pipe is connected to the outer wall of the preparation tank, and the inclined lower end of the backflow pipe is communicated with the lower portion of the stirring barrel.

[0006] In the device, a stirring impeller is arranged in the stirring barrel, and the inclined lower end of the backflow pipe is located above the stirring impeller.

[0007] Further, an inlet pipe is arranged above the stirring impeller in the device, and the inlet pipe is arranged at intervals with the inclined lower end of the backflow pipe.

[0008] Further, a backflow hole is arranged on the side wall of the inlet pipe in the device.

[0009] Further, a transmission shaft is arranged on the upper portion of the stirring impeller in the device, the inlet pipe is sleeved on the transmission shaft, and the inlet pipe is rotationally connected with the transmission shaft.

[0010] Further, the inlet pipe is in L-shaped structure in the device, and the backflow hole is arranged at the bending portion.

[0011] In the device, a mineral discharging pipe is arranged on the upper portion of the stirring barrel.

[0012] The preparation tank is provided with a partition plate, the lower end of the partition plate is spaced apart from the bottom of the preparation tank, and the dosing pipe and the ore feeding pipe are arranged on the preparation tank away from the stirring barrel side of the partition plate.

[0013] The transmission shaft above the stirring impeller is sequentially and spaced apart provided with a guide impeller and a stator, and the stator is connected and fixed with the feeding pipe.

[0014] The beneficial effects of the device are as follows: the device is combined with the ore slurry preparation tank to form external circulation of the ore slurry between the ore feeding and dosing tank and the stirring tank, the ore slurry is internally circulated between the backflow hole on the feeding pipe in the stirring tank and the guide impeller, the action distance, path and time of the reagent and the mineral are increased, the stirring action of the reagent and the ore slurry is strengthened, the stirring efficiency of the device is improved, the collision probability of the reagent and the mineral is high, the combination degree is high, and the device has a positive effect on flotation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a structural schematic view of the device.

[0016] In the figure, 1 is the ore feeding pipe, 2 is the preparation tank, 21 is the partition plate, 3 is the dosing pipe, 4 is the overflow pipe, 5 is the backflow pipe, 6 is the feeding pipe, 7 is the stirring impeller, 8 is the backflow hole, 9 is the transmission shaft, 10 is the ore discharging pipe, 11 is the stirring barrel, 12 is the guide impeller, and 13 is the stator. DETAILED DESCRIPTION

[0017] The device will be further described below in combination with the drawings.

[0018] As Figure 1As shown, this utility model discloses a chemical dosing and enhanced mixing device, including a mixing tank 11, a dosing pipe 3, and a feed pipe 1, as well as a preparation tank 2. The dosing pipe 3 and the feed pipe 1 are disposed on the preparation tank 2. An inclined overflow pipe 4 is provided at the upper part of the mixing tank 11, and the inclined lower port of the overflow pipe 4 is connected to the upper part of the preparation tank 2. An inclined return pipe 5 is connected to the outer wall of the preparation tank 2, and the inclined lower port of the return pipe 5 is connected to the lower part of the mixing tank 11. Those skilled in the art will understand that this device extends the interaction path and time between the chemical dosing and the mineral, enhances the mixing effect between the chemical and the slurry, and improves the mixing efficiency. Therefore, the dosing pipe 3 and the feed pipe 1 are actually disposed on the preparation tank 2, while an inclined overflow pipe 4 is provided at the upper part of the mixing tank 11, and the inclined lower port of the overflow pipe 4 is connected to the upper part of the preparation tank 2; and an inclined return pipe 5 is connected to the outer wall of the preparation tank 2, and the inclined lower port of the return pipe 5 is connected to the lower part of the mixing tank 11. This structural design allows the slurry and reagents to be directly fed into the preparation tank 2. Due to the pressure of the feed ore and the release of gravitational potential energy, the slurry and reagents tumble and mix in the preparation tank 2. They are then mixed again through the return pipe 5 and the overflow pipe 4, which prolongs the path, time, and reaction distance between the reagents and the minerals, strengthens the mixing effect between the reagents and the slurry, and improves the mixing efficiency.

[0019] Preferably, the mixing tank 11 in the above-mentioned device is equipped with a stirring impeller 7, and the inclined lower port of the return pipe 5 is located above the stirring impeller 7. Those skilled in the art will understand that, in order to circulate and mix the slurry and reagent mixture inside and outside the preparation tank 2 and the mixing tank 11, this device preferably has a stirring impeller 7 inside the mixing tank 11, and the inclined lower port of the return pipe 5 is located above the stirring impeller 7. This structural arrangement allows the stirring impeller 7 to generate negative pressure during rotation, drawing the slurry and reagent mixture into the mixing tank 11 for flow mixing. The slurry, under the centrifugal force of the stirring impeller 7, forms a state with a low center and high edges. When passing through the overflow pipe 4, it flows back and mixes again with the newly fed slurry in the return pipe 5 and the feed pipe 6.

[0020] Preferably, in the above-mentioned device, a feed pipe 6 is provided above the stirring impeller 7, and the inlet end of the feed pipe 6 is spaced apart from the inclined lower end of the return pipe 5. Those skilled in the art will understand that, in order to achieve secondary mixing of the slurry and the reagent, this device preferably has a feed pipe 6 above the stirring impeller 7, and the inlet end of the feed pipe 6 is spaced apart from the inclined lower end of the return pipe 5, so that the slurry and reagent can flow directly into the mixing tank 11, and can also enter the feed pipe 6 for secondary mixing.

[0021] Preferably, a reflux hole 8 is provided on the side wall of the feed pipe 6 in the above-mentioned device. Those skilled in the art will understand that, in order to allow the material to be remixed after flowing into the feed pipe 6, the device preferably provides a reflux hole 8 on the side wall of the feed pipe 6, so that the mixed material can enter through the feed pipe 6 and flow out through the reflux hole 8 to achieve internal circulation.

[0022] Preferably, in the above-mentioned device, a drive shaft 9 is provided on the upper part of the stirring impeller 7, and the feed pipe 6 is sleeved on the drive shaft 9 and rotatably connected to the drive shaft 9. Those skilled in the art will understand that, for the convenience of fixing the feed pipe 6, this device preferably has a drive shaft 9 provided on the upper part of the stirring impeller 7, and the feed pipe 6 can actually be sleeved on the drive shaft 9 and rotatably connected to the drive shaft 9.

[0023] Preferably, the feed pipe 6 in the above-mentioned device has an L-shaped structure, and the return hole 8 is located at the bend. Those skilled in the art will understand that, in order to create a pressure difference at the return hole 8 to facilitate feeding through the feed pipe 6, the feed pipe 6 is preferably L-shaped, and the return hole 8 is located at the bend. Since the feed pipe 6 is sleeved on the drive shaft 9, this structure allows the return hole 8 to be located in the middle of the stirring impeller 7.

[0024] Preferably, a discharge pipe 10 is provided on the upper part of the mixing tank 11 in the above-mentioned device. Those skilled in the art will understand that, for the convenience of material discharge, the device preferably has a discharge pipe 10 on the upper part of the mixing tank 11. Preferably, the discharge pipe 10 is at the same level as the overflow pipe 4, so that the slurry subjected to the centrifugal force of the mixing impeller 7 can be discharged through the pipe.

[0025] Preferably, the preparation tank 2 in the above-mentioned device is provided with a partition 21, the lower end of the partition 21 being spaced apart from the bottom of the preparation tank 2, and the dosing pipe 3 and the ore feeding pipe 1 being located on the side of the preparation tank 2 away from the mixing tank 11 of the partition 21. Those skilled in the art will understand that, in order to prolong the interaction path and time between the slurry and the reagent, this device preferably provides a partition 21 in the preparation tank 2, the lower end of the partition 21 being spaced apart from the bottom of the preparation tank 2, and the dosing pipe 3 and the ore feeding pipe 1 being located on the side of the preparation tank 2 away from the mixing tank 11. This structure allows the slurry and reagent to mix on the left side of the preparation tank 2 and then enter the right side through the lower end.

[0026] Preferably, in the above-described device, guide impellers 12 and stators 13 are sequentially spaced on the drive shaft 9 above the stirring impeller 7, and the stators 13 are fixedly connected to the feed pipe 6. Those skilled in the art will understand that, in order to achieve remixing of the slurry and reagents, this device preferably has guide impellers 12 and stators 13 sequentially spaced on the drive shaft 9 above the stirring impeller 7, and the stators 13 are fixedly connected to the feed pipe 6. This structural arrangement causes the guide impellers 12 to rotate, creating a negative pressure zone above the interior of the stator 13, drawing the slurry through the return hole 8 and causing it to be remixed by the action of the guide impellers 12.

Claims

1. A dosing and stirring device, comprising a stirring tank (11), a dosing pipe (3), and a feed pipe (1), characterized in that: It also includes a preparation tank (2), the dosing pipe (3) and the ore feeding pipe (1) are set on the preparation tank (2), the upper part of the mixing tank (11) is provided with an inclined overflow pipe (4), the inclined lower port of the overflow pipe (4) is connected to the upper part of the preparation tank (2); the outer wall of the preparation tank (2) is connected with an inclined return pipe (5), the inclined lower port of the return pipe (5) is connected to the lower part of the mixing tank (11).

2. The dosing and stirring device according to claim 1, characterized in that: The mixing tank (11) is equipped with a stirring impeller (7), and the inclined lower port of the return pipe (5) is located above the stirring impeller (7).

3. The dosing and stirring device according to claim 2, characterized in that: A feed pipe (6) is provided above the stirring impeller (7), and the inlet end of the feed pipe (6) is spaced apart from the inclined lower end of the return pipe (5).

4. The dosing and stirring device according to claim 3, characterized in that: A reflux hole (8) is provided on the side wall of the feed pipe (6).

5. The dosing and stirring device according to claim 4, characterized in that: The upper part of the stirring impeller (7) is provided with a drive shaft (9), and the feed pipe (6) is sleeved on the drive shaft (9) and rotatably connected to the drive shaft (9).

6. The dosing and stirring device according to claim 4, characterized in that: The feed pipe (6) has an L-shaped structure, and the return hole (8) is located at the bend.

7. The dosing and stirring device according to claim 1, characterized in that: A discharge pipe (10) is provided on the upper part of the mixing tank (11).

8. The dosing and stirring device according to claim 1, characterized in that: The preparation tank (2) is provided with a partition (21), the lower end of the partition (21) is spaced apart from the bottom of the preparation tank (2), and the dosing pipe (3) and the ore feeding pipe (1) are located on the side of the preparation tank (2) away from the mixing tank (11) of the partition (21).

9. The dosing and stirring device according to claim 5, characterized in that: Guide impellers (12) and stator (13) are sequentially spaced on the drive shaft (9) above the stirring impeller (7), and the stator (13) is connected and fixed to the feed pipe (6).

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