Efficient mixing of ore pulp and reagent for concentrator flotation machine

Abstract

The application discloses a high-efficiency mixing feeding device for ore pulp and reagent of a concentrator flotation machine, which comprises a first feeding pipe arranged on the outer side of a large flotation machine body and close to the right bottom from bottom to top, a feeding box arranged on the side away from the large flotation machine body, a mixing box and a reagent kettle arranged on the feeding box, a rotating shaft with a screen frame driven by a first driving motor and a first rotating bearing and a first rotating groove horizontally arranged in the box, an electric control valve, a first stirring roller driven by a second driving motor and a second rotating bearing and a second rotating groove horizontally arranged in the mixing box, a second feeding pipe with a second electric control metering valve arranged on the longitudinal side, a second stirring roller with an electric push rod arranged longitudinally upward, a fixed ring at the bottom, a reagent conveying pipe and a supporting leg, a kettle cover at the top, a third dustproof cover with a third dustproof and heat dissipation net, a first electric control metering valve and a supporting leg at the bottom, and the like, which has the advantages of uniform pre-metering mixing of ore pulp and reagent, prevention of blockage and improvement of the ore dressing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mining processing, in particular to a feeding device for efficiently mixing ore pulp and reagents for a flotation machine in a mineral processing plant. Background Art

[0002] Flotation machine is the abbreviation of flotation concentrator, which refers to the mechanical equipment that completes the flotation process. In the flotation machine, the pulp treated with reagents is stirred and aerated, so that some mineral particles are selectively fixed on the bubbles, float to the surface of the pulp and are scraped out to form foam products, while the rest remain in the pulp to achieve the purpose of separating minerals. There are many structural forms of flotation machines, and the most commonly used is the mechanical stirring flotation machine. The working principle of the flotation machine is that the impeller is driven by the V-belt drive of the motor to rotate, generating centrifugal force to form negative pressure. On the one hand, sufficient air is sucked in to mix with the pulp, and on the other hand, the pulp is stirred to mix with the reagents, while the foam is refined, so that the minerals adhere to the foam and float to the surface of the pulp to form mineralized foam. The gate height is adjusted to control the liquid level so that the useful foam is scraped out by the scraper.

[0003] In the prior art, flotation machines are often used in the mineral processing industry and can often be seen in mineral processing plants. The flotation machines in mineral processing plants are mainly used to separate non-ferrous metals such as copper, zinc, lead, nickel, and gold. They can also be used for the roughing and cleaning of ferrous metals and non-metals. The existing flotation machines are mainly fed directly through a feed pipe. The slurry enters the flotation machine directly, and the reagents need to be added separately. There are problems such as insufficient mixing of the slurry and the reagents, the slurry easily accumulates and becomes difficult to handle in the feed pipe, and the ore processing efficiency and safety are affected.

[0004] Therefore, it is of great significance to develop a feeding device for efficiently mixing slurry and reagents for flotation machines in mineral processing plants. Summary of the Invention

[0005] The task of the present invention is to overcome the shortcomings of the existing technology and provide a feeding device for the flotation machine of the mineral processing plant for efficient mixing of ore pulp and reagents, which can not only pre-mix the ore pulp and reagents uniformly, but also prevent blockage and improve the mineral processing efficiency.

[0006] The task of the present invention is accomplished by the following technical solutions:

[0007] The invention relates to a feeding device for efficiently mixing pulp and reagent for a flotation machine in a mineral processing plant, which comprises a large flotation machine body, a first cylindrical feeding pipe fixedly connected to the outer side of the large flotation machine body from bottom to top and close to the right bottom, and a rectangular feeding box is installed on the side of the first feeding pipe away from the large flotation machine body, and a mixing box and a reagent kettle with the same size as the feeding box are installed above the feeding box; the feeding box comprises a rotating shaft with a screen frame, a first rotating bearing, a first rotating groove, and an electric control valve which are arranged horizontally in the box and driven by a first driving motor, and can feed the ore. The evenly mixed reagent and slurry are transported to the next flotation process; the mixing box includes a first stirring roller, a second rotating bearing and a second rotating trough which are arranged horizontally in the box and driven by a second drive motor; a second feeding pipe with a second electrically controlled metering valve is arranged on one longitudinal side, which can measure and mix the reagent and slurry; the reagent kettle includes a second stirring roller with an electric push rod facing upward in the longitudinal direction and driven by a third drive motor, a fixing ring at the bottom, a drug delivery tube and supporting legs, a kettle cover at the top, a third dust cover with a third dustproof and heat dissipation net, a first electrically controlled metering valve and supporting legs at the bottom, which can evenly stir the formulated reagent.

[0008] Compared with the prior art, the present invention has the following advantages or effects:

[0009] Because the mixing box is connected to the second feeding pipe, the slurry can enter the interior of the mixing box, and the second electrically-controlled metering valve arranged on the second feeding pipe can measure and control the entering slurry, and the medicine inside the medicine kettle can be effectively controlled by the medicine delivery pipe and the first electrically-controlled metering valve, so that it enters the mixing box according to the proportion of the slurry, and the first stirring roller is driven by the second driving motor to fully mix the slurry and medicine entering in proportion, and the slurry is controlled to enter the feeding box through the electrically-controlled valve and the feeding pipe, and the medicine kettle stores the medicine, and the third driving motor and the second stirring roller can It can effectively ensure that the reagent can smoothly enter the interior of the mixing box from the drug delivery pipe, so the measurement can be accurate, the mixing can be uniform and efficient; at the same time, due to the provision of the feeding box and the screen, the mixed ore pulp and reagent in the mixing box can be temporarily stored and the first drive motor can be guaranteed to normally drive the rotating shaft to rotate. The first drive motor drives the moving frame and the screen to rotate inside the feeding box to stir the ore pulp, thereby avoiding blockage of the feeding pipe and ensuring that the first drive motor can normally drive the rotating shaft to rotate; in addition, since it does not depend on changing the structure or construction of the flotation machine, the flotation efficiency and production safety are significantly improved after the feeding device is attached. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a schematic diagram of a feeding device for efficiently mixing ore pulp and reagents for a flotation machine in a mineral processing plant.

[0011] Figure 2 for Figure 1The diagram shows the structure of the second stirring roller of the feeding device.

[0012] Figure 3 for Figure 1 Schematic diagram of the anatomical structure of the mixing box of the feeding device is shown.

[0013] Figure 4 for Figure 1 Schematic diagram of the anatomical structure of the feeding box of the feeding device shown.

[0014] Figure 5 for Figure 1 The diagram shows the structure of the feeding pipe of the feeding device.

[0015] Figure 6 for Figure 1 The figure shows a schematic diagram of the support roller structure of the feeding device.

[0016] The symbols in the accompanying drawings represent:

[0017] 1. Large flotation machine body 2. First feed pipe 222. Electric push rod 223. Third dust cover 224. Third dust and heat dissipation screen 225. Third drive motor 3. Feed box 31. Rotating shaft 32. Frame 33. Screen 34. First dust cover 341. First dust and heat dissipation screen 342. First drive motor 35. First rotating bearing 351. First rotating trough 36. Support roller 37. Feed pipe 371. Electric control valve 4. Mixing box 41. First stirring roller 4 2. Medicine kettle 421. Kettle cover 422. Electric push rod 423. Third dust cover 424. Third dust-proof heat dissipation net 425. Third drive motor 426. Second stirring roller 427. Fixed ring 428. Support leg 43. Drug delivery tube 44. First electronically controlled metering valve 45. Second feed pipe 46. Second electronically controlled metering valve 47. Second dust cover 471. Second dust-proof heat dissipation net 472. Second drive motor 473. Second rotating bearing 474. Second rotating groove.

[0018] The present invention is described in further detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] like Figures 1 to 6As shown, a feeding device for efficiently mixing pulp and reagents for a flotation machine in a mineral processing plant comprises a large flotation machine body 1. The device aims to solve the problems of separate addition of reagents, insufficient mixing of pulp and reagents, easy accumulation and blockage of pulp in the feeding pipe and difficulty in handling, poor mineral processing efficiency and safety, etc. The device further comprises a first cylindrical feeding pipe 2 connected to the outer side of the large flotation machine body 1 from bottom to top and fixed near the right bottom. A rectangular feeding box 3 is installed on the side of the first feeding pipe 2 away from the large flotation machine body 1, and a mixing box 4 and a reagent kettle 42 of the same size as the feeding box 3 are installed above the feeding box 3. The feeding box 3 comprises a rotating shaft 31 with a screen 33 frame 32 and a first rotating bearing 35 which are horizontally arranged in the box and driven by a first drive motor 342. Together with the first rotating trough 351 and the electric-controlled valve 371, the mixed reagent and slurry can be transported to the next flotation process; the mixing box 4 includes a first stirring roller 41 and a second rotating bearing 473 and a second rotating trough 474 arranged horizontally in the box and driven by a second drive motor 472. A second feeding pipe 45 with a second electric-controlled metering valve 46 is provided on one longitudinal side to measure and mix the reagent and slurry; the reagent kettle 42 includes a second stirring roller 426 with an electric push rod 422 facing upward in the longitudinal direction and driven by a third drive motor 425, a fixing ring 427 at the bottom, a drug delivery tube 43 and a support leg 428, a kettle cover 421 at the top, a third dust cover 223 with a third dust-proof and heat dissipation net 224, a first electric-controlled metering valve 44 and a support leg 428 at the bottom, which can evenly stir the formulated reagent.

[0020] The method of the present invention may further be:

[0021] The output end of the second driving motor 472 passes through the mixing box 4 and is fixedly connected to the first stirring roller 41 inside the mixing box 4 .

[0022] A second rotating bearing 473 is sleeved on the outer periphery of the first stirring roller 41 near the back side, and a second rotating groove 474 having the same outer diameter as the second rotating bearing 473 is opened on the outer periphery of the second rotating bearing 473 and located on the inner wall of the mixing box 4.

[0023] The fixed end of the electric push rod 422 is located on the inner wall of the medicine kettle 42 .

[0024] The third driving motor 425 passes through the kettle cover 421 and is fixedly connected to the top of the second stirring roller 426 .

[0025] The support legs 428 are fixedly connected to the fixing ring 427 , and the fixing ring 427 can be effectively supported by the support legs 428 , so that drug delivery can be more stable.

[0026] The feeding box 3 includes a circular rotating shaft 31 arranged transversely in the box, and two square frames 32 with screens 33 are symmetrically arranged on the periphery of the rotating shaft 31.

[0027] The output end of the first driving motor 342 passes through the feeding box 3 and is fixedly connected to the rotating shaft 31 in the feeding box 3 .

[0028] The output end of the second driving motor 372 passes through the mixing box 4 and is fixedly connected to the first stirring roller 41 in the mixing box 4 .

[0029] The third driving motor 425 passes through the kettle cover 421 and is fixedly connected to the top of the second stirring roller 426 .

[0030] The fixed end of the electric push rod 422 is located on the inner wall of the medicine kettle 42 .

[0031] During operation, first, the kettle cover 421 is raised by the electric push rod 422, and then enough medicine is added to the medicine kettle 42. After completion, the third drive motor 425 is turned on to drive the second stirring roller 426 to stir the medicine in the medicine kettle 42. Then, the second electrically-controlled metering valve 46 on the second feeding pipe 45 is opened to allow the slurry in the previous process to enter the interior of the mixing box 4. When the slurry enters the interior of the mixing box 4, the second electrically-controlled metering valve 46 performs metering. When the set amount is reached, the second electrically-controlled metering valve 46 is closed. At this time, the first electrically-controlled metering valve 44 on the drug delivery pipe 43 is opened according to the amount of slurry recorded by the second electrically-controlled metering valve 46, so that the medicine in the medicine kettle 42 enters the mixing box 4 through the drug delivery pipe 43. Similarly, when the first electrically-controlled metering valve 44 records the medicine in the same proportion as the required slurry, the first electrically-controlled metering valve 44 is closed. When the second driving motor 472 is turned on, the second driving motor 472 drives the first stirring roller 41 to rotate, and the slurry and the reagent inside the mixing box 4 are fully mixed. After the full mixing is completed, the electric control valve 371 outside the feeding pipe 37 is opened, so that the mixed slurry flows into the feeding box 3. After entering the feeding box 3, the electric control valve 371 is closed, and the second electric control metering valve 46 is opened at the same time and the above steps are repeated. The first driving motor 342 on the front of the feeding box 3 drives the rotating shaft 31 to rotate, and drives the frame 32 and the screen 33 to rotate through the rotating shaft 31. At the same time, the large flotation machine body 1 extracts the slurry inside the feeding box 3 through the first feeding pipe 2, so that it enters the interior of the large flotation machine body 1. The present invention can effectively mix the slurry and the reagent, thereby achieving better mineral processing effect, effectively preventing the feeding pipe from being blocked, and ensuring that the mineral processing work can proceed normally.

[0032] As described above, the present invention can be better implemented. The above embodiments are only the best implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Other changes, modifications, replacements, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A feeding device for efficiently mixing pulp and reagents for a flotation machine in a mineral processing plant, comprising a large flotation machine body (1), characterized in that It also includes a cylindrical first feed pipe (2) fixedly connected to the outer side of the large flotation machine body (1) from bottom to top, and a rectangular feed box (3) is installed on the side of the first feed pipe (2) away from the large flotation machine body (1), and a mixing box (4) and a reagent kettle (42) with the same size as the feed box (3) are installed above the feed box (3); the feed box (3) includes a rotating shaft (31) with a screen (33) frame (32) and a first rotating bearing (35) and a first rotating trough (351), and an electric control valve (371) arranged horizontally in the box and driven by a first driving motor (342), and can transport the mixed reagent and slurry to the next flotation process; the mixing box (4) includes A first stirring roller (41) and a second rotating bearing (473) and a second rotating groove (474) are arranged horizontally in the box and driven by a second driving motor (472). A second feeding pipe (45) with a second electrically controlled metering valve (46) is arranged on one longitudinal side, which can measure and mix the medicine and the slurry. The medicine kettle (42) includes a second stirring roller (426) with an electric push rod (422) facing upward and driven by a third driving motor (425), a fixing ring (427) at the bottom, a medicine delivery tube (43) and a supporting leg (428), a kettle cover (421) at the top, a third dust cover (223) with a third dustproof heat dissipation net (224), a first electrically controlled metering valve (44) and a supporting leg (428) at the bottom, which can stir the formulated medicine evenly.

2. The feeding device according to claim 1, characterized in that The output end of the second driving motor (472) passes through the mixing box (4) and is fixedly connected to the first stirring roller (41) inside the mixing box (4).

3. The feeding device according to claim 1, characterized in that A second rotating bearing (473) is sleeved on the outer periphery of the first stirring roller (41) near the back side, and a second rotating groove (474) having the same outer diameter as the second rotating bearing (473) is provided on the outer periphery of the second rotating bearing (473) and on the inner wall of the mixing box (4).

4. The feeding device according to claim 1, characterized in that The fixed end of the electric push rod (422) is located on the inner wall of the medicine kettle (42).

5. The feeding device according to claim 1, characterized in that The third driving motor (425) passes through the kettle cover (421) and is fixedly connected to the top of the second stirring roller (426).

6. The feeding device according to claim 1, characterized in that The support legs (428) are fixedly connected to the fixing ring (427), and the fixing ring (427) can be effectively supported by the support legs (428), which also makes the drug delivery more stable.

7. The feeding device according to claim 1, characterized in that The feeding box (3) comprises a circular rotating shaft (31) arranged transversely in the box, and two square frames (32) with screens (33) are symmetrically arranged on the periphery of the rotating shaft (31).

8. The feeding device according to claim 1, characterized in that The output end of the first drive motor (342) passes through the feeding box (3) and is fixedly connected to the rotating shaft (31) in the feeding box (3).

9. The feeding device according to claim 1 or 2, characterized in that The output end of the second driving motor (472) passes through the mixing box (4) and is fixedly connected to the first stirring roller (41) in the mixing box (4).

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