Foam scraper machine of overflow type flotation machine with circular groove body
By installing foam scrapers with multiple scraper units on the circular tank overflow flotation machine, the problem of slow foam overflow speed leading to mineral tail running is solved, and the effect of accelerating foam overflow speed and reducing the risk of tail running is achieved. .
Patent Information
- Application Number
- CN202420984988.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The foam overflow rate of existing circular tank overflow flotation machines is slow, causing the copper oxide mineral to fall off from the mineralized foam, increasing the risk of mineral tail running.
Design a foam scraper machine, including multiple scraper units, the scraper unit is installed in the fan-shaped overflow groove of the circular groove body overflow flotation machine, and the scraper arcs above a certain distance from the ore slurry surface. The reciprocating movement of the shaped motion trajectory enhances the foam overflow speed.
By accelerating the spillover rate of concentrate foam, reducing the risk of the oxidized copper mineral running at the tail, enabling useful minerals to be isolated early.
Smart Images
Figure CN222428247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mineral flotation, in particular to a foam scraper of a circular tank overflow type flotation machine. Background Art
[0002] At present, there are several major types of flotation machines, such as mechanical stirring flotation machines, aerated stirring flotation machines, and aerated flotation machines. Different types of flotation machines have their own characteristics and are suitable for different types of ores. However, since the same ore may contain multiple minerals, the floatability of different types of minerals is different, and their foam state and stability are also different. For example, copper oxide ore (oxidation rate greater than 30%) generally contains copper sulfide minerals and copper oxide minerals. Most of them are treated by flotation in industry. The main flotation method is the sulfide flotation method of first sulfur and then oxygen, that is, first add collectors and frothers to float out copper sulfide minerals with better floatability, then add sulfidizing agents and apply a certain stirring time to sulfide copper oxide minerals with poor floatability, and then add collectors and frothers to float out copper oxide minerals.
[0003] At present, the ore dressing plant processes high-oxidation copper-cobalt ore with an oxidation rate of about 80%, and adopts the flotation process of sulfur first and oxygen later. The flotation machines for roughing and scavenging are all overflow-type mechanical stirring flotation machines with circular troughs. It is found in practice that the foam viscosity of copper oxide minerals is relatively large, and the foam overflow speed is slow, which easily causes copper oxide minerals with poor floatability to fall off from the mineralized foam, especially the intergrowth particles, whose surface hydrophobic film area is small and floatability is poor. The mineralized foam does not overflow the flotation machine for a long time, and the copper oxide particles are easy to fall off from the mineralized foam layer. Therefore, it is necessary to increase the foam outflow speed of the overflow flotation machine of the circular trough of the copper oxide section, so that the copper oxide minerals can be discharged early and the probability of copper oxide minerals running tail is reduced. Utility Model Content
[0004] The utility model provides a foam scraper of a circular tank overflow type flotation machine, so as to solve the technical problem that the foam of the existing circular tank overflow type flotation machine overflows slowly, resulting in a high probability of mineral tailing.
[0005] The utility model provides a foam scraper machine of a circular trough overflow type flotation machine, wherein a plurality of fan-shaped overflow troughs are arranged around the center of the circular trough overflow type flotation machine, the foam scraper machine of the circular trough overflow type flotation machine comprises a plurality of scraper units, the plurality of scraper units are arranged in a plurality of fan-shaped overflow troughs in a one-to-one correspondence, the scraper unit comprises a rotating disk, a first driving arm, a second driving arm, and a scraper, one end of the first driving arm is hinged to the rotating disk, and the other end is hinged to the movable end of the second driving arm, the fixed end of the second driving arm is located at one side of the rotating disk, the scraper is fixed on the second driving arm and extends toward the direction of the movable end of the second driving arm, and the rotating disk can rotate around a fixed point so that the first driving arm drives the scraper on the second driving arm to swing back and forth in the fan-shaped overflow trough.
[0006] Furthermore, the scraper unit also includes a motor and a rotating shaft, the motor drives the rotating shaft to rotate, and the gear on the rotating shaft matches the gear on the edge of the turntable, so that the rotating shaft drives the turntable to rotate.
[0007] Furthermore, the scraper unit also includes a base and a support plate, the support plate and the motor are both mounted on the base, and the rotating disk and the fixed end of the second driving arm are both mounted on the support plate.
[0008] Furthermore, an adjusting screw is installed on the base for adjusting the depth of the scraper unit in the circular tank overflow type flotation machine.
[0009] Furthermore, the depth of the scraper unit in the circular tank overflow flotation machine is 5 to 20 cm.
[0010] Furthermore, overflow weirs are provided at the edges of the plurality of fan-shaped overflow grooves, and the scraper reciprocates in the fan-shaped overflow grooves to allow the foam to overflow from the overflow weirs.
[0011] Furthermore, the scraper includes a scraper arm and a scraper body, one end of the scraper arm is connected to the second driving arm, and the other end is connected to the scraper body.
[0012] Furthermore, the lateral width of the scraper body is greater than that of the scraper arm.
[0013] Furthermore, the lateral width of the scraper body is 10 to 30 cm.
[0014] Furthermore, the number of the scraper units is 8, and the arc of the scraper of the scraper unit reciprocating in the fan-shaped overflow trough is 30 to 40 degrees.
[0015] The utility model has the following beneficial effects:
[0016] The utility model provides a foam scraper machine of a circular trough overflow type flotation machine, which comprises a plurality of scraper units. A single scraper unit is installed in a fan-shaped overflow trough of the circular trough overflow type flotation machine. The scraper of the scraper machine performs reciprocating motion in an arc-shaped motion trajectory above a certain distance from the surface of the ore slurry, so that when the flotation machine processes ores with poor floatability and sticky concentrate foam, the overflow speed of the concentrate foam can be accelerated, so that useful minerals can be discharged earlier and the risk of concentrate foam running tail is reduced.
[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0019] Figure 1 It is a structural schematic diagram of a scraper unit of a preferred embodiment of the utility model (state one);
[0020] Figure 2 It is a structural schematic diagram of the scraper unit of the preferred embodiment of the utility model (state 2);
[0021] Figure 3 It is a structural schematic diagram of the scraper unit of the preferred embodiment of the utility model (state three);
[0022] Figure 4 It is a structural schematic diagram of a foam scraper of a circular tank overflow type flotation machine according to a preferred embodiment of the utility model.
[0023] Legend:
[0024] 100-scraper unit; 1-motor; 11-base; 2-rotating shaft; 22-support plate; 3-turntable; 41-first driving arm; 42-second driving arm; 5-fixed end of the second driving arm; 6-scraper; 61-scraper arm; 62-scraper body; 8-fan-shaped overflow groove; 9-adjusting screw rod; 11-base. DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.
[0026] like Figure 1-4As shown, an embodiment of the utility model provides a foam scraper of a circular trough overflow type flotation machine, a plurality of fan-shaped overflow troughs 8 are arranged around the center of the circular trough overflow type flotation machine, the foam scraper of the circular trough overflow type flotation machine comprises a plurality of scraper units 100, the plurality of scraper units 100 are arranged in the plurality of fan-shaped overflow troughs 8 in a one-to-one correspondence, the scraper unit 100 comprises a turntable 3, a first driving arm 41, a second driving arm 42, and a scraper 6, one end of the first driving arm 41 is hinged to the turntable 3, and the other end is hinged to the movable end of the second driving arm 42, the fixed end 5 of the second driving arm is located on one side of the turntable (3), the scraper 6 is fixed on the second driving arm 42 and extends toward the movable end of the second driving arm 42, the turntable 3 can rotate around the fixed point, so that the first driving arm 41 drives the scraper 6 on the second driving arm 42 to swing back and forth in the fan-shaped overflow trough 8.
[0027] In the embodiment of the present application, the turntable can be circular or in other shapes. If it is circular, it can rotate around its center (the fixed point is the center in this case). One end of the first driving arm 41 is hinged to the turntable 3. At this time, one end of the first driving arm 41 is fixed on the turntable 3, but can rotate around the connection. The other end of the first driving arm 41 is hinged to the movable end of the second driving arm 42. At this time, the two are connected to each other, and not only can they rotate around the connection point, but the connection is also movable, so that the second driving arm 42 can swing back and forth under the drive of the first driving arm 41. The second driving arm 42 is equivalent to a swing arm with one end fixed, driving the scraper to swing back and forth in the fan-shaped overflow groove 8.
[0028] In an embodiment of the present application, the number of scraper units 100 matches the number of fan-shaped overflow grooves 8 and is arranged one by one. Their number is multiple, for example, 3, 4, 5, 6, 7, 8, or more, and can be set according to actual conditions.
[0029] In the embodiment of the present application, the arc of the reciprocating swing of the scraper 6 can be adjusted by adjusting the length of the first driving arm 41 and the second driving arm 42, and the foam in the overflow trough is scraped away from the overflow trough during the swinging process of the scraper 6.
[0030] The foam scraper of the circular trough overflow flotation machine provided in the embodiment of the present application includes a plurality of scraper units 100. A single scraper unit 100 is installed in the fan-shaped overflow trough 8 of the circular trough overflow flotation machine. The scraper 6 of the scraper machine performs reciprocating motion in an arc-shaped trajectory above a certain distance from the surface of the ore slurry, so that when the flotation machine processes ores with poor floatability and sticky concentrate foam, the overflow speed of the concentrate foam can be accelerated, so that useful minerals can be discharged earlier and the risk of concentrate foam running away is reduced.
[0031] In an embodiment of the present application, the scraper unit 100 further includes a motor 1 and a rotating shaft 2, wherein the motor 1 drives the rotating shaft 2 to rotate, and the gear on the rotating shaft 2 matches the gear on the edge of the turntable 3, so that the rotating shaft 2 drives the turntable 3 to rotate.
[0032] According to the embodiment of the present application, the above-mentioned driving method can enable the turntable 3 to achieve uniform and continuous rotation, and the foam continuously generated in the overflow tank is continuously scraped away from the overflow tank.
[0033] In the embodiment of the present application, the scraper unit 100 further includes a base 11 and a support plate 22 , the support plate 22 and the motor 1 are both mounted on the base 11 , and the turntable 3 and the fixed end 5 of the second driving wall are both mounted on the support plate 22 .
[0034] In the embodiment of the present application, an adjusting screw rod 9 is installed on the base 11 for adjusting the depth of the scraper unit 100 in the circular tank overflow type flotation machine.
[0035] According to the embodiments of the present application, since the thickness of the foam generated by different minerals during flotation is different, the depth-adjustable design can adapt to the flotation of minerals with different properties.
[0036] In the embodiment of the present application, the depth of the scraper unit 100 in the circular tank overflow type flotation machine is 5 to 20 cm.
[0037] According to the embodiments of the present application, the multiple scraper units 100 of the foam scraper of the same circular trough overflow flotation machine are generally arranged at the same depth, but different scraper units 100 can also be arranged at different depths according to actual conditions. There is no limitation here. If the depth of a single scraper unit 100 is 5 to 20 cm, a better foam scraping effect can be achieved.
[0038] In the embodiment of the present application, overflow weirs are provided at the edges of the plurality of fan-shaped overflow grooves 8, and the scraper 6 reciprocates in the fan-shaped overflow grooves 8 to make the foam overflow from the overflow weirs. After the foam overflows from the overflow weirs, it enters the next processing step.
[0039] In the embodiment of the present application, the scraper 6 includes a scraper arm 61 and a scraper body 62 . One end of the scraper arm 61 is connected to the second driving arm 42 , and the other end is connected to the scraper body 62 .
[0040] In the embodiment of the present application, the lateral width of the scraper body 62 is greater than that of the scraper arm 61 .
[0041] According to the embodiment of the present application, the scraper arm 61 serves to connect the scraper body 62 and the second drive arm 42. It is generally made of a material with greater strength and can be cylindrical or other shapes. The specific shape and size are not specifically limited and can be freely selected according to the space. The scraper body 62 has a greater lateral width than the scraper arm 61. The scraper body 62 with a larger lateral width directly acts on the foam, which is conducive to scraping out the foam. In the embodiment of the present application, the lateral width of the scraper body 62 is 10 to 30 cm, such as 10 cm, 15 cm, 20 cm, 25 cm or 30 cm, etc., which is specifically determined according to the properties of the foam.
[0042] In the embodiments of the present application, Figure 4 As shown, the number of the fan-shaped overflow grooves 8 is 8, and the arc of the scraper 6 of the scraper unit 100 reciprocating in the fan-shaped overflow groove 8 is 30-40 degrees. The scraper unit 100 designed according to the above number and arc is suitable for scraping out the copper oxide mineral foam, which is a foam with high viscosity, and can achieve the early removal of the copper oxide mineral and reduce the probability of the copper oxide mineral running away.
[0043] In some embodiments, both roughing and scavenging on-site selection use a self-priming overflow flotation machine with a circular tank volume of 160 cubic meters. Figure 4 As shown. Figure 4 It can be seen that the flotation machine has a total of 8 concentrate overflow tanks. When the mineralized foam accumulates to a certain extent, it flows out of the overflow tank to separate useful minerals from gangue minerals. However, the copper-cobalt ore with a high oxidation rate of about 80% is processed on site. The useful minerals are recovered by using the sulfur-first-then-oxygen process. In actual production, the copper sulfide mineral has good floatability, the copper sulfide concentrate foam is relatively stable, and the flotation effect is better. However, since a large amount of reagents need to be added in the oxidation stage to activate the copper oxide minerals, and the useful minerals have poor floatability, the mineralized foam has a large viscosity, and the foam overflow speed is slow, which is easy to cause tailing.
[0044] The foam scraper of the circular tank overflow flotation machine provided in the embodiment of the present application can increase the exit speed of the mineralized foam in the oxidation stage. Figures 1 to 3 1 is a diagram of different states of the scraper unit 100 of the foam scraper of the circular tank overflow flotation machine of the present application, Figure 4 This is an overall schematic diagram of the foam scraper of the circular tank overflow flotation machine applied for. Figure 1-3It can be seen that the flotation machine scraper is mainly composed of a motor 1, a transmission shaft, a turntable 3 with gears, a first driving arm 41, a second driving arm 42, a scraper arm 61, a scraper body 62, an adjusting screw 9, a support plate 22, and a base 11. In addition, in actual production, the thickness of the foam layer is controlled to be about 5cm to 20cm, and the width of the scraper body 62 is designed to be 20cm. According to the actual production situation, the height of the scraper body 62 from the slurry surface can be adjusted by adjusting the adjusting screw 9 of the base 11. When the scraper is working, the motor 1 provides power, transfers kinetic energy to the transmission shaft, and drives the turntable 3 with gears, and then the turntable 3 with gears drives the first driving arm 41, and the fixed end 5 of the second driving arm is connected to the scraper arm 61, so that the scraper body 62 performs a reciprocating motion of a circular arc motion trajectory, and the round-trip arc is 35 degrees, so as to scrape the concentrate foam out of the foam tank overflow weir. Figure 2 and Figure 3 When the foam scraper 6 moves to the far left and far right, the motor 1 drives the rotating disc 3 with gears to make circular motion through the transmission shaft, drives the first driving arm 41 to make reciprocating swings within this range, and drives the scraper body 62 to make circular arc reciprocating swings through the scraper arm 6. In addition, by adjusting the length of the first driving arm 41 and the second driving arm 42, the reciprocating swing range can be adjusted.
[0045] The present application installs a flotation machine foam scraper on a circular trough overflow flotation machine, so that the scraper body 62 of the scraper makes a reciprocating motion in an arc-shaped trajectory above a certain distance from the surface of the ore slurry, so that when the flotation machine processes ores with poor floatability and sticky concentrate foam, the overflow speed of the concentrate foam is accelerated, so that useful minerals can be discharged earlier and the risk of concentrate foam running away is reduced.
[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A foam scraper of a circular tank overflow type flotation machine, wherein a plurality of fan-shaped overflow tanks (8) are arranged around the center of the circular tank overflow type flotation machine, characterized in that: The foam scraper of the circular tank overflow flotation machine comprises a plurality of scraper units (100), the plurality of scraper units (100) being arranged one by one in a plurality of fan-shaped overflow tanks (8), the scraper unit (100) comprising a rotating disk (3), a first driving arm (41), a second driving arm (42), and a scraper (6), one end of the first driving arm (41) being hinged to the rotating disk (3), and the other end being hinged to the movable end of the second driving arm (42), the fixed end (5) of the second driving arm being located at one side of the rotating disk (3), the scraper (6) being fixed to the second driving arm (42) and extending in the direction of the movable end of the second driving arm (42), the rotating disk (3) being rotatable around a fixed point, so that the first driving arm (41) drives the scraper (6) on the second driving arm (42) to swing back and forth in the fan-shaped overflow tank (8).
2. The foam scraper of the circular tank overflow flotation machine according to claim 1, characterized in that: The scraper unit (100) further comprises a motor (1) and a rotating shaft (2), wherein the motor (1) drives the rotating shaft (2) to rotate, and the gear on the rotating shaft (2) matches the gear on the edge of the rotating disk (3), so that the rotating shaft (2) drives the rotating disk (3) to rotate.
3. The foam scraper of the circular tank overflow flotation machine according to claim 2, characterized in that: The scraper unit (100) further comprises a base (11) and a support plate (22); the support plate (22) and the motor (1) are both mounted on the base (11); and the rotating disk (3) and the fixed end (5) of the second driving arm are both mounted on the support plate (22).
4. The foam scraper of the circular tank overflow flotation machine according to claim 3, characterized in that: An adjusting screw rod (9) is installed on the base (11) for adjusting the depth of the scraper unit (100) in the circular tank overflow type flotation machine.
5. The foam scraper of the circular tank overflow type flotation machine according to claim 4, characterized in that: The depth of the scraper unit (100) in the circular tank overflow type flotation machine is 5 to 20 cm.
6. The foam scraper of the circular tank overflow flotation machine according to claim 1, characterized in that: Overflow weirs are provided at the edges of the plurality of fan-shaped overflow grooves (8), and the scraper (6) reciprocates in the fan-shaped overflow grooves (8) to allow the foam to overflow from the overflow weirs.
7. The foam scraper of the circular tank overflow flotation machine according to claim 1, characterized in that: The scraper (6) comprises a scraper arm (61) and a scraper body (62); one end of the scraper arm (61) is connected to the second driving arm (42), and the other end is connected to the scraper body (62).
8. The foam scraper of the circular tank overflow type flotation machine according to claim 7, characterized in that: The scraper body (62) has a transverse width greater than that of the scraper arm (61).
9. The foam scraper of the circular tank overflow flotation machine according to claim 8, characterized in that: The scraper body (62) has a transverse width of 10 to 30 cm.
10. The foam scraper of the circular tank overflow flotation machine according to claim 1, characterized in that: The number of the scraper units (100) is 8, and the arc of the scraper (6) of the scraper unit (100) that swings back and forth in the fan-shaped overflow groove (8) is 30 to 40 degrees.