CN210620906U

CN210620906U - Device for removing foam in wet leaching process

Info

Publication number: CN210620906U
Application number: CN201921227721.0U
Authority: CN
Inventors: 刘会明; 吕喆; 袁仁伟
Original assignee: Xiamen Tungsten Co Ltd
Current assignee: Xiamen Tungsten Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-26
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a get rid of device that wet process leached process foam, include: the device comprises a wet leaching reaction tank and a foam absorption tank, wherein a leaching space is defined in the wet leaching reaction tank, and leachate is contained in the leaching space; inject the absorption space in the foam absorption groove, arrange the mortar in the absorption space, the lower extreme in absorption space is equipped with the mortar export, and be equipped with venturi on the foam absorption groove, venturi's entry section with mortar export intercommunication, venturi's contraction section pass through the hose with leach the space intercommunication, venturi's diffusion zone with the absorption space intercommunication. The device can effectively remove the foam generated in the acid leaching process, thereby ensuring the normal operation of the acid leaching process and improving the operation efficiency.

Description

Device for removing foam in wet leaching process

Technical Field

The utility model belongs to the technical field of the pickling, concretely relates to get rid of device that wet process leached process foam.

Background

In the leaching and recycling process of cobalt and nickel waste materials, the liquid level of a leaching tank continuously rises due to more foams generated in the acid leaching process, so that the leaching operation cannot be continuously carried out, and the operation efficiency of the leaching tank is seriously influenced.

Therefore, the effective removal of the foam generated in the acid leaching process needs to be solved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a get rid of device that wet process leached process foam, adopt the device can effectively get rid of the foam that the pickling in-process produced to improve its operating efficiency when guaranteeing that the pickling process normally goes on.

In one aspect of the present invention, the present invention provides a device for removing foam generated during the wet leaching process. According to the utility model discloses an embodiment, the device includes:

the wet-process leaching reaction tank is internally provided with a leaching space, and leaching liquid is arranged in the leaching space;

foam absorption groove, inject the absorption space in the foam absorption groove, arrange the mortar in the absorption space, the lower extreme in absorption space is equipped with the mortar export, and be equipped with venturi on the foam absorption groove, venturi's entry with mortar export intercommunication, venturi's contraction section pass through the hose with leach the space intercommunication, venturi's divergent section with the absorption space intercommunication.

The device for removing the foam in the wet leaching process of the embodiment of the utility model arranges the foam absorption groove, arranges the mortar in the foam absorption groove, arranges the Venturi tube on the foam absorption groove, wherein the inlet section of the Venturi tube is communicated with a mortar outlet below the foam absorption groove, the contraction section of the Venturi tube is communicated with the leaching space through a hose, the diffusion section of the Venturi tube is communicated with the absorption space, that is, when the mortar is supplied to the inlet section of the venturi tube from the absorption space through the mortar outlet and then flows into the absorption space from the diffusion section of the venturi tube after passing through the contraction section, because the venturi tube adopts the structure of contraction before diffusion, during the circulation supply of the mortar, negative pressure is generated in the contraction section of the Venturi tube, so that foam generated in the wet leaching reaction tank can be sucked into the Venturi tube through the hose and discharged into the absorption space through the diffusion section. Therefore, the device can effectively remove the foam generated in the acid leaching process, and avoids the condition that the operation cannot be performed in the leaching process due to the rising of the foam, thereby improving the operation efficiency while ensuring the normal operation of the acid leaching process.

In addition, the device for removing the foam in the wet leaching process according to the embodiment of the present invention may further have the following additional technical features:

furthermore, an opening is formed above the leaching space, and one end of the hose extends into the leaching space from the opening.

Furthermore, one end of the hose extends into the leaching space above the leaching liquid.

Furthermore, a first stirring device is arranged on the wet leaching reaction tank.

Furthermore, a second stirring device is arranged on the foam absorption tank.

Further, the above device further comprises a mortar pump, the mortar pump respectively with the inlet section of the venturi tube and the mortar outlet are connected.

Furthermore, a flow valve is arranged at the mortar outlet.

Further, the venturi tube is disposed in a direction perpendicular to a height direction of the bubble absorbing groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an apparatus for removing foam in a wet leaching process according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In one aspect of the present invention, the present invention provides a device for removing foam generated during the wet leaching process. According to the utility model discloses an embodiment, referring to fig. 1, the device includes: a wet leaching reaction tank 100 and a foam absorption tank 200.

According to the embodiment of the present invention, a leaching space 10 is defined in the wet leaching reaction tank 100, and a leaching solution 11 is provided in the leaching space 10. Further, in order to improve the leaching efficiency of the leaching solution, the foam absorption tank 100 is provided with a first stirring device 12. Specifically, referring to fig. 1, the first stirring device 12 includes a first stirring motor 121 and a first stirring paddle 122, the first stirring motor 121 is disposed on the leaching space 10, one end of the first stirring paddle 122 is connected to the first stirring motor 121, and the other end of the first stirring paddle extends into the reaction space 10 from above the leaching space 10 and contacts the leaching solution in an extending manner, so as to stir the leaching solution, and thus the leaching solution is uniformly mixed. Preferably, the first stirring device 12 is provided at the center of the wet leaching reaction tank 100. It should be noted that the type of the leaching solution in the leaching space 10 is not particularly limited as long as the foam generated in the acid leaching process needs to be removed, and may be, for example, a mixed solution of cobalt nickel waste and an acid solution in the acid leaching process of cobalt nickel waste.

According to the utility model discloses an embodiment, inject absorption space 20 in the foam absorption groove 200, arrange mortar 21 in the absorption space 20, the lower extreme of absorption space 20 is equipped with mortar export 201 to be equipped with venturi 22 on the foam absorption groove 200. Further, the venturi tube 22 comprises an inlet section 221, a contraction section 222, a waiting section 223 and a diffusion section 224 which are connected in sequence, wherein the inlet section 221 is communicated with the mortar outlet 201, the contraction section 222 is communicated with the leaching space 10 through a hose 23, and the diffusion section 224 is communicated with the absorption space 20. The inventor finds that when the mortar is supplied from the absorption space to the inlet section of the venturi tube through the mortar outlet and then flows into the absorption space from the diffusion section of the venturi tube after passing through the contraction section, due to the structure of the venturi tube that contracts first and then diffuses, negative pressure is generated in the contraction section of the venturi tube during the circulation supply of the mortar, so that the foam generated in the wet leaching reaction tank can be sucked into the venturi tube through the hose and discharged into the absorption space through the diffusion section. In addition, the adopted mortar is easier to generate vacuum and negative pressure than other fluids, so that foams generated in the acid leaching process are better removed, the normal operation of the acid leaching process is ensured, and the operation efficiency is improved. Preferably, the venturi tube 22 is disposed in a direction perpendicular to the height direction of the foam absorbing groove 100, and a flow valve 24 is disposed at the mortar outlet 201.

Further, referring to fig. 1, an opening 13 is arranged above the leaching space 10, one end of a hose 23 extends into the leaching space 10 from the opening 13, and the size of the opening 13 is larger than the diameter of the hose 23, so that the position of the hose can be flexibly adjusted according to the height of foam generated by the leaching solution in the leaching space, the foam generated in the leaching process in the wet leaching reaction tank can be timely removed, and the operation efficiency of the leaching process can be ensured. Preferably, one end of the hose 23 extends above the leach solution 11 in the leaching space 10, so that material losses due to the hose pumping away the leach solution are avoided.

Further, be equipped with second agitating unit 25 on foam absorption tank 200, be the same as first agitating unit 12, second agitator motor 251 and second agitator paddle 252 that second agitating unit 25 included, second agitator motor 251 is established on absorption space 20, and the one end of second agitator paddle 252 links to each other with second agitator motor 251, and the other end stretches into in absorption space 20 and extends the contact mortar from absorption space 20 top to stir mortar and foam, make some granules that fail to react completely in the foam continue to react completely.

Further, the above apparatus further comprises a slurry pump 300, and the slurry pump 300 is connected to the inlet section 221 and the slurry outlet 201 of the venturi tube 22, respectively, i.e., the slurry in the absorption space 20 is supplied into the venturi tube 22 by the slurry pump 300 to generate a negative pressure in the contraction section 222 thereof, thereby sucking the foam generated in the wet leaching reaction tank 100 through the hose.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An apparatus for removing foam from a wet leaching process, comprising:

the wet-process leaching reaction tank is internally provided with a leaching space, and leachate is contained in the leaching space;

2. An apparatus for removing foam from a wet leaching process according to claim 1 wherein an opening is provided above the leaching space, and one end of the hose extends into the leaching space from the opening.

3. An apparatus for removing wet leach process froth according to claim 2 wherein one end of the hose extends into the leach space above the leach solution.

4. The apparatus for removing foam in a wet leaching process according to claim 1 wherein the wet leaching reaction tank is provided with a first agitation means.

5. The apparatus for removing foam in a wet leaching process according to claim 1, wherein the foam absorbing tank is provided with a second stirring means.

6. The apparatus for removing foam from a wet leach process according to claim 1, further comprising a slurry pump connected to the inlet section of the venturi and the slurry outlet, respectively.

7. The apparatus for removing foam from a wet leach process according to claim 1 wherein a flow valve is provided at the slurry outlet.

8. The apparatus for removing froth in a wet leaching process according to claim 1, wherein said venturi tube is disposed in a direction perpendicular to a height direction of said froth absorption tank.