Thickener with foam eliminating function

Abstract

The embodiment of the utility model discloses a thickener with a foam eliminating function, a central driving part is used for driving a rotating shaft to rotate, a rake arm and a rotating arm are integrated on the rotating shaft, the rake arm is closer to the bottom of a liquid pool, and the rotating shaft drives the rake arm to rotate, so that the reaction rate of raw material minerals at the bottom of the liquid pool and an aqueous solution can be increased; the rotating arm is located above the liquid surface of the lower-layer clear liquid, and when the rotating arm rotates and transfers, the rotating arm can drive the upper-layer foam to move and drive the upper-layer foam to the front side of the rotating direction of the rotating arm. One end of the foam collecting chute is communicated with the liquid pool, and when upper-layer foam is driven to the foam collecting chute by the rotating arm, the upper-layer foam can be discharged out of the liquid pool through the foam collecting chute, so that the effective volume of the thickener is prevented from being reduced by the upper-layer foam by discharging the foam, the leaching capacity and efficiency are improved, and meanwhile, the phenomenon that in the solid-liquid separation process, the foam is separated from the liquid pool is avoided. Foam floats on the upper portion of the thickener, fine particle minerals are attached to the foam, and the solid-liquid separation effect is affected.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of hydrometallurgy, in particular to a thickener with a function of eliminating foam. BACKGROUND

[0002] Hydrometallurgy is a method of converting useful metals contained in ores, concentrates enriched by ore dressing or other raw materials into liquid phase by chemical reaction through contact with aqueous solution or other liquid, and then separating and enriching various useful metals contained in the liquid phase, and finally recovering in the form of metal or other compounds. Mainly including unit operation processes such as leaching, liquid-solid separation, solution purification, metal extraction in solution and wastewater treatment. The leaching process of hydrometallurgy generally uses inorganic acids such as sulfuric acid and hydrochloric acid to react with minerals, and the raw materials generally contain carbonates and other minerals that can react with acid to release gas, or contain foaming components such as ore dressing reagents, which interact with each other during leaching to produce a large amount of foam in the system, which may reduce the effective volume of the leaching reactor, affect the leaching capacity and efficiency, and in the liquid-solid separation process, the foam floats on the upper part of the thickener, and the fine particles of the mineral adhere to the foam, affecting the liquid-solid separation effect. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0004] Therefore, according to the embodiment of the present application, a thickener with a function of eliminating foam is provided, which comprises:

[0005] In a feasible embodiment, a thickener body is provided, the thickener body has a liquid pool, the liquid pool has a lower clear liquid and an upper foam inside, and further comprises:

[0006] A central driving member is arranged in the thickener body, and the central driving member is used for driving the rotation of the component;

[0007] A rotating shaft is connected to the central driving member, and the rotating shaft is arranged inside the liquid pool;

[0008] A rake arm is connected to the lower end of the rotating shaft at one end;

[0009] A rotating arm is connected to the rotating shaft at one end, and the rotating shaft is arranged above the upper surface of the lower clear liquid;

[0010] A foam collecting chute is connected to the liquid pool of the thickener body at one end, and the other end of the foam collecting chute is arranged at a lower horizontal height than the end connected to the liquid pool of the thickener body.

[0011] In an embodiment, the device further comprises a track, wherein the track is arranged along a running track of the end of the rotating arm;

[0012] a roller, wherein the roller is arranged at the end of the rotating arm away from the rotating shaft, and the roller runs on the track.

[0013] In an embodiment, the device further comprises:

[0014] an outer baffle, wherein the outer baffle is a ring-shaped baffle, the outer baffle is arranged at the periphery of the inside of the liquid pool, and the outer baffle has an overflow port, and the overflow port is connected to the skimming chute;

[0015] the track is arranged on the inner surface of the outer baffle.

[0016] In an embodiment, the device further comprises:

[0017] an inner baffle, wherein the inner baffle is a strip-shaped baffle, and one end of the inner baffle is connected to one side of the overflow port of the outer baffle.

[0018] In an embodiment, the device further comprises:

[0019] a brush, wherein the brush is arranged on the lower surface of the rotating arm.

[0020] In an embodiment, the device further comprises:

[0021] an overflow groove, wherein the overflow groove is a ring-shaped groove;

[0022] an overflow weir, wherein the outer side wall of the overflow groove is the inner side wall of the liquid pool, and the inner side wall of the overflow groove is the overflow weir;

[0023] the outer diameter of the outer baffle is smaller than the inner diameter of the overflow weir;

[0024] the skimming chute passes through the overflow groove.

[0025] In an embodiment, the device further comprises:

[0026] the lower end of the brush extends into the lower layer of clear liquid by 3cm to 5cm.

[0027] In an embodiment, the brush is made of polytetrafluoroethylene material.

[0028] In an embodiment, the inner baffle has an inclination angle, and the angle formed by the center line of the overflow port of the outer baffle and the inner baffle is an angle α, and the angle α is 5° to 10°.

[0029] In an embodiment, the device further comprises:

[0030] A wind driving member is provided at one end of the inner baffle away from the outer baffle.

[0031] Compared with the prior art, the utility model at least has the following beneficial effects:

[0032] The central driving member is used for driving the rotating shaft to rotate, and the rake arm and the rotating arm are integrated on the rotating shaft, wherein the rake arm is closer to the bottom of the liquid pool, and the rotating shaft drives the rake arm to rotate, so that the reaction rate of the raw material mineral and the aqueous solution at the bottom of the liquid pool is improved, the rotating arm is located above the surface of the lower layer of clear liquid, and when the rotating arm rotates, the rotating arm can drive the upper layer of foam to move and drive the upper layer of foam to the front side of the rotating direction of the rotating arm. One end of the foam collecting chute is communicated with the liquid pool, and when the upper layer of foam is driven to the foam collecting chute by the rotating arm, the upper layer of foam can be discharged from the liquid pool through the foam collecting chute, so that the technical scheme drives the foam, avoids the reduction of the effective volume of the thickener by discharging the foam, improves the leaching capacity and efficiency, and avoids the floating of the foam on the upper part of the thickener in the solid-liquid separation process, the attachment of the fine particle mineral on the foam, and the influence on the solid-liquid separation effect. In addition, the technical scheme stirs the bottom of the liquid pool through the rake arm, improves the reaction rate of the thickener, and integrates the rake arm and the rotating arm on the same rotating shaft, so that two sets of driving and rotating shaft devices are not needed, the structure is simplified, and the realization is easy. BRIEF DESCRIPTION OF DRAWINGS

[0033] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to be limiting of the present application. Like reference numerals designate corresponding parts throughout the several views. In the drawings:

[0034] Figure 1 A top structure block diagram of the thickener with the foam elimination function provided in an embodiment of the present application;

[0035] Figure 2 A front sectional structure block diagram of the thickener with the foam elimination function provided in an embodiment of the present application;

[0036] Wherein, Figures 1-2 The correspondence between the reference signs and the component names in the drawings is as follows:

[0037] 1, rotating arm; 2, track; 3, central driving mechanism; 4, outer ring baffle; 5, inner baffle; 6, foam collecting chute; 7, overflow weir; 8, overflow ditch; 9, rake arm; 10, upper layer of foam; 11, lower layer of clear liquid. DETAILED DESCRIPTION

[0038] In order to better understand the above technical solutions, the technical solutions of the embodiments of the present application will be described in detail below through the drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, and are not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0039] As shown in Figures 1-2 The first aspect of the embodiments of the present application proposes a froth machine with a froth elimination function, which comprises a thickener body, the thickener body has a liquid pool, the liquid pool has a lower clear liquid 11 and an upper layer of froth 10 inside, and further comprises: a central driving member, the central driving member is arranged on the thickener body, and the central driving member is used to drive the rotation of the component; a rotating shaft, the rotating shaft is connected to the central driving member, and the rotating shaft is arranged inside the liquid pool; a rake arm 9, one end of the rake arm 9 is connected to the lower end of the rotating shaft; a rotating arm 1, one end of the rotating arm 1 is connected to the rotating shaft, and the rotating shaft is arranged above the upper surface of the lower clear liquid 11; a froth collecting chute 6, one end of the froth collecting chute 6 is communicated with the liquid pool of the thickener body, and the other end of the froth collecting chute 6 is lower than the one end communicated with the liquid pool of the thickener body in terms of horizontal height.

[0040] In the process of wet metallurgy, in addition to the lower clear liquid 11 for soaking the raw materials for smelting, the liquid pool of the thickener body will also have minerals containing carbonates and other substances that can react with acid to release gas, or foaming components such as mineral processing reagents, and these substances will interact with each other when leaching to produce a large amount of foam in the system. Therefore, the froth machine with a froth elimination function provided by the embodiments of the present application comprises a central driving member, a rotating shaft, a rake arm 9, a rotating arm 1 and a froth collecting chute 6.

[0041] The central driving member is used for driving the rotating shaft to rotate, and the rake arm 9 and the rotating arm 1 are integrated on the rotating shaft, wherein the rake arm 9 is closer to the bottom of the liquid pool, the rotating shaft drives the rake arm 9 to rotate, and the reaction rate of the raw material mineral at the bottom of the liquid pool and the aqueous solution can be improved, the rotating arm 1 is located above the liquid surface of the lower clear liquid 11, when the rotating arm 1 rotates, the rotating arm 1 can drive the upper foam 10 to move, and the upper foam 10 is driven to the front side of the rotating direction of the rotating arm 1. One end of the foam collecting chute 6 is communicated with the liquid pool, when the upper foam 10 is driven to the foam collecting chute 6 by the rotating arm 1, the upper foam 10 can be discharged from the liquid pool through the foam collecting chute, so that the technical scheme realizes the driving of the foam, avoids the reduction of the effective volume of the thickener by discharging the foam, improves the leaching capacity and efficiency, and avoids that the foam floats on the upper part of the thickener in the solid-liquid separation process, the fine particle mineral is attached to the foam, and the solid-liquid separation effect is affected. And, in the technical scheme, the rake arm 9 is used for stirring the bottom of the liquid pool, the reaction rate of the thickener is improved, and the rake arm 9 and the rotating arm 1 are integrated on the same rotating shaft, so that two sets of driving and rotating shaft devices are not needed, the structure is simplified, and the realization is easy.

[0042] As shown in Figures 1-2 , further comprising: a track 2, the track 2 is arranged along the running track of the end of the rotating arm 1; a roller, the roller is arranged at the end of the rotating arm 1 away from the rotating shaft, and the roller runs on the track 2.

[0043] In the technical scheme, the thickener further comprises a track 2 and a roller, the track 2 is arranged along the running track of the end of the rotating arm 1, the end of the rotating arm 1 is the end of the rotating arm 1 away from the rotating shaft, the roller is arranged at the end of the rotating arm 1 away from the rotating shaft, and the roller rolls on the track 2.

[0044] The setting can provide support for the end of the rotating arm 1 away from the rotating shaft, so as to improve the stability of the rotating arm 1 and the service life of the thickener.

[0045] As shown in Figures 1-2 , further comprising: an external baffle, the external baffle is a ring-shaped baffle, the external baffle is arranged on the periphery of the inside of the liquid pool, the external baffle has an overflow port, the overflow port is communicated with the foam collecting chute 6, and the track 2 is arranged on the inner surface of the external baffle.

[0046] In the technical scheme, the external baffle has an overflow port, and the external baffle is communicated with the foam collecting chute 6 through the overflow port. It can be understood that the lower end of the external baffle extends into the lower clear liquid 11, and the upper end of the external baffle exceeds the outer side wall of the liquid pool.

[0047] In the technical scheme, the track 2 is arranged on the inner side wall of the external baffle.

[0048] The arrangement can ensure that the upper layer of foam 10 is concentrated to the foam collecting chute 6 and discharged, avoiding the driven foam from being accumulated to the edge of the liquid pool and even pushed out of the liquid pool, causing environmental pollution.

[0049] As shown in Figures 1-2 It also comprises an internal baffle 5, which is a strip-shaped baffle, one end of the internal baffle 5 being connected to one side of the overflow port of the external baffle.

[0050] In the technical solution, the internal baffle 5 is a strip-shaped baffle, and one end of the internal baffle 5 is connected to one side of the overflow port. It can be understood that the foam collecting chute 6 has a certain width, and when the rotating arm 1 rotates outside the range of the foam collecting chute 6, it is assumed that the first side of the foam collecting chute 6 is first passed through, and then the second side of the foam collecting chute 6 is passed through. Therefore, the internal baffle 5 is always connected to the second side of the foam collecting chute 6.

[0051] The internal baffle 5 is used to stop the foam accumulated by the rotating arm 1 and make the foam more easily discharged from the foam collecting chute 6. The arrangement improves the rate of eliminating foam by the thickener.

[0052] As shown in Figures 1-2 It also comprises a brush, which is arranged on the lower surface of the rotating arm 1.

[0053] In the technical solution, the lower surface of the rotating arm 1 is provided with a brush. The soft brush is used to scrape the foam floating in the thickener. The brush is inserted below the liquid surface layer, further improving the cleaning efficiency of the foam.

[0054] As shown in Figures 1-2 It also comprises an overflow ditch 8, which is an annular groove; an overflow weir 7, the outer side wall of the overflow ditch 8 being the inner side wall of the liquid pool, and the inner side wall of the overflow ditch 8 being the overflow weir 7; the outer diameter of the external baffle being smaller than the inner diameter of the overflow weir 7; and the foam collecting chute 6 penetrating through the overflow ditch 8.

[0055] In the technical solution, the height of the external baffle exceeds that of the overflow weir 7, the outer diameter of the external baffle is smaller than the inner diameter of the overflow weir 7, the external baffle is arranged on the inner side of the overflow weir 7, and the external baffle has an overflow port, the height of which is lower than that of the overflow weir 7. The space formed between the two forms a communication pipe effect with the internal space of the thickener. The upper layer of clear liquid in the thickener can flow to the overflow ditch 8 through the gap between the external baffle and the overflow weir 7 and enter the next process.

[0056] As shown in Figures 1-2 It also comprises that the lower end of the brush extends into the lower layer of clear liquid 1 by 13 cm to 5 cm.

[0057] The brush is made of polytetrafluoroethylene material.

[0058] In the technical scheme, the material of the brush has the characteristics of high temperature resistance and acid and alkali corrosion resistance, and the durability of the thickener is improved.

[0059] As shown in Figures 1-2 The internal baffle 5 has an inclination angle, and the angle between the center line of the overflow port of the external baffle and the internal baffle 5 is an angle α, and the angle α is 5-10°.

[0060] In the technical scheme, when the rotating arm 1 rotates clockwise, the internal baffle 5 is arranged at a position as shown in Figure 1 The arrangement can make the foam flow to the foam collecting chute 6 along one side of the internal baffle 5, and further improve the foam discharge efficiency.

[0061] Further comprising: a wind driving member, which is arranged at one end of the internal baffle 5 away from the external baffle.

[0062] In the technical scheme, the wind driving member is arranged at one end of the internal baffle 5 close to the rotating shaft, and the foam is pushed into the foam collecting chute 6 by the wind, and the foam discharge efficiency is further improved.

[0063] In the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "a plurality of" refers to two or more, unless otherwise specified. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", "front", "back" and the like indicate 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 units referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the present application.

[0065] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The preferred embodiments of the present application have been described above with the preferred embodiments, but are not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thickener with a foam-eliminating function, comprising a thickener body, the thickener body having a liquid tank, the liquid tank containing a lower layer of clear liquid and an upper layer of foam, characterized in that, Also includes: A central drive unit is disposed on the thickener body and is used to drive the components to rotate; A rotating shaft is connected to the central drive unit and is disposed inside the liquid pool; A rake arm, one end of which is connected to the lower end of the rotating shaft; A rotating arm, one end of which is connected to a rotating shaft, the rotating shaft being positioned above the upper surface of the lower clear liquid; A foam collecting chute, one end of which is connected to the liquid pool of the thickener body, and the other end of which is at a lower horizontal level than the end connected to the liquid pool of the thickener body.

2. The thickener with defoaming function according to claim 1, characterized in that, Also includes: The track is set along the running trajectory of the end of the rotating arm; A roller is disposed at the end of the rotating arm away from the rotating shaft, and the roller runs on the track.

3. The thickener with foam elimination function according to claim 2, characterized in that, Also includes: An external baffle, which is an annular baffle, is disposed on the periphery inside the liquid pool and has an overflow port that is connected to a foam collection chute. The track is disposed on the inner surface of the outer baffle.

4. The thickener with foam elimination function according to claim 3, characterized in that, Also includes: An internal baffle, which is a strip-shaped baffle, is connected at one end to one side of the overflow port of the external baffle.

5. The thickener with defoaming function according to claim 1, characterized in that, Also includes: A brush is disposed on the lower surface of the rotating arm.

6. The thickener with defoaming function according to claim 3, characterized in that, Also includes: Overflow channel, wherein the overflow channel is an annular groove; An overflow weir, wherein the outer wall of the overflow ditch is the inner wall of the liquid pool, and the inner wall of the overflow ditch is the overflow weir; The outer diameter of the external baffle is smaller than the inner diameter of the overflow weir; The foam collection chute passes through the overflow ditch.

7. The thickener with defoaming function according to claim 5, characterized in that, Also includes: The lower end of the brush extends 3cm to 5cm into the lower layer of clear liquid.

8. The thickener with defoaming function according to claim 5, characterized in that: The brush is made of polytetrafluoroethylene.

9. The thickener with defoaming function according to claim 4, characterized in that: The inner baffle has an inclined angle, and the angle formed between the centerline of the overflow port of the outer baffle and the inner baffle is angle α, which is 5° to 10°.

10. The thickener with defoaming function according to claim 4, characterized in that, Also includes: A wind-driven component is disposed at the end of the inner baffle that is away from the outer baffle.

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