Double-cantilever type defoaming device for thickening pool

Abstract

According to the double-cantilever type defoaming device for the thickening tank, the first rotary cantilever mechanism can rotate relative to the supporting piece, the second rotary cantilever mechanism can rotate relative to the first rotary cantilever mechanism, the whole device takes a firm central transmission frame in the center of the thickening tank as a foundation, and the defoaming effect is greatly improved through compound motion of the two-stage cantilever mechanism. And the defoaming mechanism is conveyed to any position of the liquid level. And on the other hand, the first rotary cantilever mechanism forms a stable triangular structure through the rotary tower, the first rotary cantilever and the cantilever pull rod, a stable anti-bending truss is formed, and the bending resistance of the first rotary cantilever is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral processing and solid-liquid separation technical field especially relates to a double cantilever type defoaming device for thickener. BACKGROUND

[0002] In the mine flotation process, the concentrate slurry after flotation enters the thickener for settlement and concentration. Because a large amount of surfactants such as foaming agent and collector remains in the slurry, a large amount of super-stable foam layer with stable properties and long retention time is easily generated on the surface of the thickener. This foam layer not only seriously hinders the settlement of solid particles, resulting in substandard underflow concentration, but also causes overflow water to carry solid particles and run muddy, directly damaging the core solid-liquid separation function of the thickener.

[0003] Chinese patent document No. CN221471016U discloses a central transmission thickener. A transmission shaft is arranged inside the thickener tank body. A defoaming mechanism is arranged on the upper half of the shaft rod of the transmission shaft. The defoaming mechanism includes a floating platform arranged on the transmission shaft. The cylinder body of the floating platform is arranged with multiple groups of defoaming branches in the circumferential direction. The arm rods of each group of defoaming branches are arranged with multiple groups of defoaming spikes. When the transmission shaft rotates, it drives the defoaming branches and the defoaming spikes to rotate synchronously in a mechanical rotation mode to circulate and autonomously defoam the liquid surface. In this technical solution, if the radius size of the thickener (thickener tank) is too large, on the one hand, the defoaming branches are too long and will bend downward under the action of gravity and liquid tension. On the other hand, the floating platform bears a large pressure and has a short service life. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a double cantilever type defoaming device for thickener with good bending resistance.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A double cantilever type defoaming device for thickener, which is connected to the central transmission frame of the thickener. The double cantilever type defoaming device includes a support, a first rotary cantilever mechanism, a second rotary cantilever mechanism, and a defoaming mechanism connected in sequence. The first rotary cantilever mechanism is rotatable relative to the support, and the second rotary cantilever mechanism is rotatable relative to the first rotary cantilever mechanism. The first rotary cantilever mechanism includes a first rotary disc, a rotary tower, a first cantilever, and a cantilever pull rod. The first rotary disc is rotatable relative to the support. The rotary tower is vertically connected to the first cantilever. One end of the first cantilever is connected to the first rotary disc and is horizontally arranged. The other end of the first cantilever is connected to the second rotary cantilever mechanism. One end of the cantilever pull rod is connected to the upper part of the rotary tower, and the other end of the cantilever pull rod is connected to the first cantilever.

[0007] As a further improvement of the above technical solution,

[0008] The first rotary cantilever mechanism further comprises a first floating support stabilizer connected to the lower part of the first cantilever.

[0009] The first rotary cantilever mechanism further comprises a first driving member installed on the support member and used for driving the first rotary disc to rotate relative to the support member.

[0010] The first rotary cantilever mechanism further comprises a first speed reducer located between the output end of the first driving member and the first rotary disc.

[0011] The second rotary cantilever mechanism comprises a second rotary disc rotatable relative to the first cantilever and a second cantilever horizontally arranged at one end of which the second rotary disc is connected and at the other end of which the defoaming mechanism is connected.

[0012] The second rotary cantilever mechanism further comprises a second floating support stabilizer connected to the lower part of the second cantilever.

[0013] The second rotary cantilever mechanism further comprises a second driving member installed on the first cantilever and used for driving the second rotary disc to rotate relative to the first cantilever.

[0014] The second rotary cantilever mechanism further comprises a second speed reducer located between the output end of the second driving member and the second rotary disc.

[0015] The defoaming mechanism comprises a third driving member installed on the second cantilever and used for driving the shearing mechanism to rotate and a shearing impeller connected to the outer circumferential wall of the rotating rod arranged vertically.

[0016] Compared with the prior art, the defoaming device has the advantages that:

[0017] The defoaming device for the thickener comprises a first rotary cantilever mechanism rotatable relative to the support member, a second rotary cantilever mechanism rotatable relative to the first rotary cantilever mechanism, a first rotary disc, a first cantilever, a second rotary disc, a second cantilever, a defoaming mechanism and a support member. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic view of the defoaming device for the thickener.

[0019] Fig. 2 Figure 2 is a structural schematic view of the double-cantilever defoaming device for the thickener according to the present application (another perspective view).

[0020] Fig. 3 Figure 3 is a structural schematic view of the first rotary cantilever mechanism, the second rotary cantilever mechanism and the shearing mechanism according to the present application.

[0021] In the figure, each reference number represents:

[0022] 1, thickener; 2, central transmission frame; 31, support; 32, first rotary cantilever mechanism; 321, first driving member; 322, first speed reducer; 323, first rotary disc; 324, rotary tower; 325, first cantilever; 326, cantilever pull rod; 327, first floating support stabilizer; 33, second rotary cantilever mechanism; 331, second driving member; 332, second speed reducer; 333, second rotary disc; 334, second cantilever; 335, second floating support stabilizer; 34, defoaming mechanism; 341, third driving member; 342, shearing mechanism; 3421, rotating rod; 3422, shearing impeller. DETAILED DESCRIPTION

[0023] The present application will be further described in detail below. Unless otherwise specified, the instruments or materials used in the present application are commercially available.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the utility model, unless another definite provision and limitation, the terms "connect", "connection", "fix" and so on should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction of two elements inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] Embodiment 1

[0028] As Figs. 1 to 3 Indicated, the double cantilever type defoaming device for thickener of the embodiment, double cantilever type defoaming device is connected on the center transmission frame 2 of thickener 1, and the double cantilever type defoaming device includes support piece 31, first rotary cantilever mechanism 32, second rotary cantilever mechanism 33 and defoaming mechanism 34 connected in turn;First rotary cantilever mechanism 32 is rotatable relative to support piece 31, and second rotary cantilever mechanism 33 is rotatable relative to first rotary cantilever mechanism 32;First rotary cantilever mechanism 32 includes first rotary disc 323, rotary tower 324, first cantilever 325, cantilever pull rod 326, first rotary disc 323 is rotatable relative to support piece 31, rotary tower 324 is vertically connected on first cantilever 325, first cantilever 325 one end is connected on first rotary disc 323 and is horizontally arranged, and the other end is connected with second rotary cantilever mechanism 33, and one end of cantilever pull rod 326 is connected on the upper portion of rotary tower 324, and the other end is connected with first cantilever 325.

[0029] First rotary cantilever mechanism 32 is rotatable relative to support piece 31, and second rotary cantilever mechanism 33 is rotatable relative to first rotary cantilever mechanism 32, and the whole device is based on the solid center transmission frame 2 in the center of thickener 1, and through the composite motion of two-stage cantilever mechanism, defoaming mechanism 34 reaches the liquid surface at any position. On the other hand, first rotary cantilever mechanism 32 forms a stable triangular structure through rotary tower 324, first cantilever 325 and cantilever pull rod 326, forms a stable bending truss, and improves the bending performance of first cantilever 325.

[0030] As Fig. 3 Indicated, first rotary cantilever mechanism 32 further includes first floating support stabilizer 327, and first floating support stabilizer 327 is connected to the lower portion of first cantilever 325. In the embodiment, first floating support stabilizer 327 is made of foam material, and when contacting the ore pulp, it will float on the surface of the ore pulp under the action of buoyancy, thereby providing buoyancy for first cantilever 325, offsetting part of the gravity of first cantilever 325, reducing the pressure borne by first rotary disc 323, and improving the service life of first rotary disc 323.

[0031] AsFig. 3 As shown in the figure, the first rotary cantilever mechanism 32 further comprises a first driving member 321 installed on the support member 31 and used to drive the first rotary disc 323 to rotate relative to the support member 31, and further comprises a first speed reducer 322 located between the output end of the first driving member 321 and the first rotary disc 323. The first rotary disc 323 rotates relative to the support member 31 to perform a work radius with the support member 31 as the center, and eliminates the foam on the thickening tank 1. In this embodiment, the first driving member 321 is a stepper motor, and the first speed reducer 322 is a planetary speed reducer.

[0032] As shown in the figure, Fig. 3 The second rotary cantilever mechanism 33 comprises a second rotary disc 333 and a second cantilever 334, the second rotary disc 333 is rotatable relative to the first cantilever 325, and the second cantilever 334 is connected to the second rotary disc 333 at one end and is horizontally arranged, and is connected to the defoaming mechanism 34 at the other end. When the second cantilever 334 rotates around the end of the first cantilever 325, the second cantilever 334 performs work with the end of the first cantilever 325 as the center, and the rotation angle is 360 degrees. The second cantilever 334 is foldable and unfoldable relative to the first cantilever 325, so that the position of the defoaming mechanism 34 also changes, and the second cantilever 334 is a member for expanding the defoaming work radius.

[0033] As shown in the figure, Fig. 3 The second rotary cantilever mechanism 33 further comprises a second floating support stabilizer 335 connected to the lower part of the second cantilever 334. In this embodiment, a plurality of second floating support stabilizers 335 are arranged along the length direction of the second rotary cantilever mechanism 33, and the second floating support stabilizers 335 are made of foam material or buoy, and when they contact the ore pulp, they will float on the surface of the ore pulp under the action of buoyancy, thereby providing buoyancy to the second cantilever 334 to offset part of the gravity of the second cantilever 334, reduce the pressure borne by the second rotary disc 333, and improve the service life of the second rotary disc 333.

[0034] As shown in the figure, Fig. 3 The second rotary cantilever mechanism 33 further comprises a second driving member 331 installed on the first cantilever 325 and used to drive the second rotary disc 333 to rotate relative to the first cantilever 325. The second rotary cantilever mechanism 33 further comprises a second speed reducer 332 located between the output end of the second driving member 331 and the second rotary disc 333. In this embodiment, the second driving member 331 is a stepper motor, and the second speed reducer 332 is a planetary speed reducer.

[0035] As shown in the figure, Fig. 3As shown, the defoaming mechanism 34 includes a third driving member 341 mounted on the second cantilever 334 and used to drive the shearing mechanism 342 to rotate, and the shearing mechanism 342 includes a rotating rod 3421 arranged vertically and a shearing impeller 3422 connected to the outer circumferential wall of the rotating rod 3421. The shearing impeller 3422 is used to implement mechanical shearing crushing on the foam. The existing defoaming mechanism can only rotate with the transmission shaft and has no self-rotation function, and in fact only has a bubble scraping function. There is a situation that the transmission shaft is always rotating and the part of the thickening tank 1 has no foam, and the defoaming mechanism is still running, which consumes energy. The third driving member 341 of the defoaming mechanism 34 of the utility model has self-rotation function of the shearing mechanism 342 on one hand, and on the other hand, the working time of the shearing mechanism 342 is controlled by the independent third driving member 341 to stop running in the area where defoaming is not needed, so that accurate defoaming of the thickening tank 1 is realized.

[0036] In the embodiment, the third driving member 341 is a three-phase asynchronous motor, and a high-power three-phase asynchronous motor drives the high-speed shearing mechanism 342, which provides abundant mechanical energy for crushing the super-stable foam. The pure physical shearing method has direct action and strong power, and the defoaming efficiency is much higher than that of the traditional method such as spraying, and no chemical agent is needed, so that secondary pollution and additional cost are avoided.

[0037] Embodiment 2

[0038] The thickening tank defoaming system of the embodiment includes a monitor and a controller, the monitor is arranged on the thickening tank 1, the controller is electrically connected with the monitor, and the thickening tank double-cantilever defoaming device of embodiment 1 is further included. The thickening tank defoaming system of the embodiment can be realized by combining the existing control method with the hardware module, and does not depend on the improvement of the software program.

[0039] The arrangement of the monitor and the controller enables the defoaming operation to have “eyes” and “brain”, the system can automatically find and identify the foam enrichment area, automatically plan the path and drive the cantilever to go to the cleaning area, realizes the fundamental change from “manual intervention and passive response” to “all-weather and full-automatic intelligent operation”, and greatly improves the intelligent level and work efficiency.

[0040] In the embodiment, the monitor is a 360-degree panoramic industrial camera fixedly installed at a high point above the thickening tank 1, can continuously scan and monitor the entire pool surface, identify and locate the position and range of the foam enrichment area in real time, and transmit the position coordinate data to the controller of the system in real time.

[0041] The operation example of the system of the embodiment is shown as follows:

[0042] The controller receives the target coordinates transmitted by the monitor, and performs motion path planning according to the current position state of the cantilever. The planar rectangular coordinates (X, Y) of the target point are solved into the angle (θ) that the first cantilever 325 needs to rotate and the angle (R) that the second cantilever 334 needs to swing, so as to generate control instructions.

[0043] The controller sends the solved angle instructions to the combination of the first driving member 321 and the first speed reducer 322 for driving the first cantilever 325, and the combination of the second driving member 331 and the second speed reducer 332 for driving the second cantilever 334 to swing, respectively.

[0044] After receiving the instructions, the two sets of driving members and speed reducers act cooperatively to drive the first cantilever 325 and the second cantilever 334 to move, so as to quickly and accurately position the defoaming mechanism 34 mounted at the end of the second cantilever 334 to the top or inside of the target foam area.

[0045] After positioning is completed, the controller starts the third driving member 341 to drive the rotating rod 3421 to rotate the shearing impeller 3422, so as to implement powerful mechanical shearing and crushing on the foam. In this process, the second floating support stabilizer 335, the first floating support stabilizer 327 and the anti-bending truss jointly ensure the structural rigidity and overall stability of the long cantilever during movement and operation.

[0046] After completing the defoaming task of an area, the system automatically decides whether to continue cleaning the area, turn to the next foam target, or return to the global scanning mode according to the new pool surface state fed back by the vision system, so as to realize the closed-loop automatic control of "perception-decision-execution", until the foam on the entire pool surface is completely cleaned.

[0047] Although the utility model has disclosed as above with preferred embodiments, however, it is not used to limit the utility model. Any skilled person in the art can make many possible changes and modifications to the technical solution of the utility model, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the utility model, by using the disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, without departing from the content of the technical solution of the utility model, should fall within the protection scope of the technical solution of the utility model.

Claims

1. A double-cantilever defoaming device for a thickener tank, the double-cantilever defoaming device being connected to a central transmission frame (2) of a thickener tank (1), characterized in that: The double-cantilever defoaming device comprises a support (31), a first rotary cantilever mechanism (32), a second rotary cantilever mechanism (33) and a defoaming mechanism (34) connected in sequence; the first rotary cantilever mechanism (32) is rotatable relative to the support (31); the second rotary cantilever mechanism (33) is rotatable relative to the first rotary cantilever mechanism (32). The first rotary cantilever mechanism (32) comprises a first rotary disc (323), a rotary tower (324), a first cantilever (325) and a cantilever pull rod (326); the first rotary disc (323) is rotatable relative to the support (31); the rotary tower (324) is vertically connected to the first cantilever (325); one end of the first cantilever (325) is connected to the first rotary disc (323) and is horizontally arranged; the other end of the first cantilever (325) is connected to the second rotary cantilever mechanism (33); one end of the cantilever pull rod (326) is connected to the upper part of the rotary tower (324); the other end of the cantilever pull rod (326) is connected to the first cantilever (325).

2. The double-cantilever defoaming device for a thickener tank according to claim 1, characterized in that: The first rotary cantilever mechanism (32) further comprises a first floating support stabilizer (327) connected to the lower part of the first cantilever (325).

3. The double-cantilever defoaming device for a thickener tank according to claim 2, characterized in that: The first rotary cantilever mechanism (32) further comprises a first driving member (321) installed on the support (31) and used for driving the first rotary disc (323) to rotate relative to the support (31).

4. The double-cantilever defoaming device for a thickener tank according to claim 3, characterized in that: The first rotary cantilever mechanism (32) further comprises a first speed reducer (322) located between the output end of the first driving member (321) and the first rotary disc (323).

5. The double-cantilever defoaming device for a thickener tank according to any one of claims 1 to 4, characterized in that: The second rotary cantilever mechanism (33) comprises a second rotary disc (333) and a second cantilever (334); the second rotary disc (333) is rotatable relative to the first cantilever (325); one end of the second cantilever (334) is connected to the second rotary disc (333) and is horizontally arranged; the other end of the second cantilever (334) is connected to the defoaming mechanism (34).

6. The double-cantilever defoaming device for a thickener tank according to claim 5, characterized in that: The second rotary cantilever mechanism (33) further comprises a second floating support stabilizer (335) connected to the lower part of the second cantilever (334).

7. The double-cantilever defoaming device for a thickener tank according to claim 5, characterized in that: The second rotary cantilever mechanism (33) further comprises a second driving member (331) installed on the first cantilever (325) and used for driving the second rotary disc (333) to rotate relative to the first cantilever (325).

8. The double-cantilever defoaming device for a thickener tank according to claim 7, characterized in that: The second rotary cantilever mechanism (33) further comprises a second speed reducer (332) located between the output end of the second driving member (331) and the second rotary disc (333).

9. The double-cantilever defoaming device for a thickener tank according to claim 5, characterized in that: The defoaming mechanism (34) comprises a third driving member (341) and a shearing mechanism (342); the third driving member (341) is installed on the second cantilever (334) and used for driving the shearing mechanism (342) to rotate; the shearing mechanism (342) comprises a rotating rod (3421) arranged vertically and a shearing impeller (3422) connected to the outer circumferential wall of the rotating rod (3421).

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