Device for preventing normal-pressure leaching tank from overflowing
By designing an automated defoamer addition device, using float ball and adjusting rod mechanism to automatically add defoamer according to liquid level changes, the problem of the foam leaching in the atmospheric pressure leaching tank is solved, and the operation safety and production stability are improved.
Patent Information
- Application Number
- CN202421479362.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In the nickel sulfide pressurized leaching process, the normal pressure leaching tank produces a large amount of foam due to the reaction of sulfuric acid with the solution, which can easily cause the ore slurry to rise, causing splashing and burning damage. The defoaming agent is added manually, with a large amount of use and a low rate, which affects the stability of production.
A device including a defoamer liquid reservoir, flange, connection port, connector and rotation sealing device is designed. Using the float ball and adjusting rod mechanism, diluted defoamer is automatically added according to the increase in the liquid level, and it is automatically closed when the liquid level drops to a certain range.
It realizes automatic addition of defoaming agent when the liquid level of the atmospheric pressure leaching tank rises to prevent the trough from being emitted, improves operational safety, reduces the frequency of troughs, and improves production stability.
Smart Images
Figure CN222878028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of nonferrous hydrometallurgical equipment, in particular to a device for preventing a normal pressure leaching tank from bubbling. Background Art
[0002] The statements in this section are merely intended to provide background information related to the technical solution of the present application to aid understanding, and they do not necessarily constitute prior art for the technical solution of the present application.
[0003] In the nickel sulfide pressure leaching process, during the second stage of normal pressure leaching, a large amount of foam will be generated in the tank due to the reaction between the added sulfuric acid and the solution in the tank, which can easily cause the slurry to overflow and splash. Defoaming agents need to be added to maintain stable production. At present, the defoaming agent is added manually, the amount of defoaming agent used is large, the defoaming rate is low, and the post personnel need to patrol continuously, which is labor-intensive. If the defoaming agent is not added in time, the increase in foam will cause the normal pressure leaching tank to overflow, which will cause splashing and burns to the post operators, thereby affecting the safety of the staff. On the other hand, adding too much defoaming agent will affect the subsequent production control and the final quality of the electronickel. Utility Model Content
[0004] In order to automatically prevent a normal-pressure leaching tank from bubbling, one aspect of the utility model relates to a device for preventing a normal-pressure leaching tank from bubbling, characterized in that it comprises: a defoamer storage tank for storing defoamer, a flange, a connecting port, a connecting piece, and a rotating sealing device; wherein the flange is arranged at the tank mouth of the defoamer storage tank, and is used to connect the tank mouth of the defoamer storage tank with the connecting port; one end of the connecting piece is rotatably connected to the rotating sealing device, and the other end is fixed to the connecting port; the rotating sealing device comprises a float, a transverse adjustment rod, a longitudinal adjustment rod, and a sealing piece for sealing the connecting port, wherein the transverse adjustment rod is rotatably connected to one end of the connecting piece, the sealing piece is arranged on one end of the transverse adjustment rod, and the other end of the transverse adjustment rod is connected to one end of the longitudinal adjustment rod, and the float is installed on the other end of the longitudinal adjustment rod.
[0005] In one embodiment, the length of the lateral adjustment rod is adjustable.
[0006] In one embodiment, the connection position between the longitudinal adjustment rod and the transverse adjustment rod is adjustable.
[0007] In one embodiment, the sealing member includes a sealing cover and a sealing ring.
[0008] In one embodiment, a filter screen is provided in the defoaming agent storage tank.
[0009] In one embodiment, the longitudinal adjustment rod and the transverse adjustment rod are perpendicular to each other.
[0010] The device of the utility model can be applied to the leaching tank during the normal pressure two-stage leaching of nickel refining pressure leaching technology. During the acid leaching process, the reaction process will cause the liquid level in the leaching tank to rise, resulting in the leaching tank bubbling. When the liquid level rises, the device will automatically add the diluted defoaming agent according to the increase in the liquid level, and will automatically shut down when the liquid level drops to a certain range. The utility model is based on the characteristics of the two-stage normal pressure leaching equipment, and the leaching tank bubbling is easy to cause splashing and scalding, thereby preventing the leaching tank from bubbling. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings, wherein:
[0012] Figure 1 It is a schematic structural diagram of a device for preventing a normal pressure leaching tank from bubbling according to an embodiment;
[0013] Figure 2 is a cross-sectional view of a device for preventing a normal pressure leaching tank from bubbling according to an embodiment;
[0014] Figure 3 It is a three-dimensional view of a device for preventing a normal pressure leaching tank from bubbling according to one embodiment.
[0015] In the figure: 1-defoaming agent storage tank; 2-flange; 3-connection port; 4-float; 5-sealing ring; 6-lateral adjustment rod; 7-longitudinal adjustment rod; 8-sealing cover; 9-filter screen; 10-connector. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0017] Figure 1-3 A device for preventing a normal pressure leaching tank from bubbling is shown according to an embodiment, which includes: a defoaming agent storage tank 1, a flange 2, a connecting port 3, a connecting piece 10, and a rotating sealing device.
[0018] The defoaming agent storage tank 1 is used to store defoaming agent. The flange 2 is arranged at the tank mouth of the defoaming agent storage tank 1, and is used to connect the tank mouth of the defoaming agent storage tank 1 with the connecting port 3. One end of the connecting member 10 is rotatably connected to the rotating sealing device, and the other end is fixed to the connecting port 3. The rotating sealing device can rotate around one end of the connecting member 10, and includes a float 4, a sealing ring 5, a transverse adjustment rod 6, a longitudinal adjustment rod 7, and a sealing member for sealing the connecting port 3, wherein the transverse adjustment rod 6 is rotatably connected to one end of the connecting member 10, the sealing member is arranged at one end of the transverse adjustment rod 6, the other end of the transverse adjustment rod 6 is connected to one end of the longitudinal adjustment rod 7, and the float 4 is installed at the other end of the longitudinal adjustment rod 7. In one embodiment, the longitudinal adjustment rod 7 and the transverse adjustment rod 6 are perpendicular to each other.
[0019] In one embodiment, the length of the lateral adjustment rod 6 can be adjusted. For example, the lateral adjustment rod 6 may include multiple parts, which are connected by screws, buckles, etc., and the overall length of the lateral adjustment rod 6 can be changed by adjusting the screws or adjusting the buckle position.
[0020] In one embodiment, the connection position of the longitudinal adjustment rod 7 and the transverse adjustment rod 6 can be adjusted. For example, one end of the longitudinal adjustment rod 7 can be vertically extended into the transverse adjustment rod 6, and the extended length can be adjusted as needed, and then locked.
[0021] In one embodiment, the sealing member for sealing the connection port 3 includes a sealing cover 8 and a sealing ring 5. The sealing ring 5 is used to provide a tighter sealing effect.
[0022] In one embodiment, a filter screen 9 is provided in the defoaming agent storage tank 1 to filter impurities that may be contained in the defoaming agent.
[0023] In one embodiment, the liquid level of the antifoaming agent storage tank can be detected and the antifoaming agent can be automatically replenished.
[0024] The utility model discloses a device for preventing the normal pressure leaching tank from bubbling. When the liquid level rises, the device automatically adds the diluted defoaming agent according to the rising range, and automatically closes when the liquid level drops to a certain range.
[0025] In one embodiment, the production and operation conditions of the device for preventing atmospheric pressure leaching tank from bubbling may be: temperature: 70-80°C; air volume: 30-120; medium: pH 1.5-3.0 nickel sulfate slurry material, and the liquid-to-solid ratio of the material is 8:1-10:1.
[0026] According to an implementation method of a device for preventing a normal pressure leaching tank from bubbling, the longitudinal adjustment rod 7 and the transverse adjustment rod 6 are appropriately adjusted according to the liquid level in the normal pressure leaching tank and the height of the tank cover from the liquid level. By utilizing the principle of lever, when the liquid level is higher than the normal liquid level, the float 4 automatically rises, so that the sealing cover 8 opens to an appropriate angle according to the rising height of the float 4, so that an appropriate amount of defoaming agent is added to the leaching tank; when the liquid level returns to normal due to the addition of the defoaming agent, the float 4 automatically falls due to gravity, so that the defoaming agent stops being added after the sealing cover 8 returns to its position.
[0027] The utility model successfully solves various problems of the traditional defoaming agent adding method, makes the operator safer when adding the defoaming agent, avoids splashing and scalding to the operator when the defoaming agent is in the tank, and also greatly reduces the frequency of the bubbling of the leaching tank.
[0028] References herein to "various embodiments", "some embodiments", "one embodiment" or "an embodiment" etc. refer to that a particular feature, structure or property described in conjunction with the embodiment is included in at least one embodiment. Therefore, the phrases "in various embodiments", "in some embodiments", "in one embodiment" or "in an embodiment" etc. appearing throughout this document do not necessarily refer to the same embodiment. In addition, particular features, structures or properties may be combined in any suitable manner in one or more embodiments. Therefore, the particular features, structures or properties shown or described in conjunction with one embodiment may be combined in whole or in part with features, structures or properties of one or more other embodiments without restriction, as long as the combination is not illogical or inoperable. Expressions similar to "according to A", "based on A", "through A" or "using A" appearing herein are intended to be non-exclusive, that is, "according to A" may cover "according to A only" or "according to A and B", unless it is specifically stated that its meaning is "according to A only". In this application, for the sake of clarity, some exemplary operating steps are described in a certain order, but those skilled in the art will understand that each of these operating steps is not essential, and some of the steps may be omitted or replaced by other steps. These operation steps do not have to be executed sequentially in the manner shown; on the contrary, some of these operation steps can be executed in different orders or in parallel according to actual needs, as long as the new execution manner is not illogical or inoperable.
[0029] Having thus described several aspects of at least one embodiment of the present invention, it will be appreciated that various changes, modifications and improvements will readily occur to those skilled in the art. Such changes, modifications and improvements are intended to be within the spirit and scope of the present invention. Although the present invention has been described by way of some embodiments, the present invention is not limited to the embodiments described herein, and includes various changes and variations made without departing from the scope of the present invention.
Claims
1. A device for preventing atmospheric pressure leaching tank from bubbling, characterized in that: include: A defoamer liquid storage tank (1), a flange (2), a connection port (3), a connecting piece (10), and a rotary sealing device for storing the defoamer; The flange (2) is arranged at the tank opening of the defoaming agent storage tank (1) and is used to connect the tank opening of the defoaming agent storage tank (1) to the connecting port (3); one end of the connecting piece (10) is rotatably connected to the rotating sealing device, and the other end is fixed to the connecting port (3); The rotary sealing device comprises a float (4), a transverse adjustment rod (6), a longitudinal adjustment rod (7), and a sealing member for sealing the connection port (3), wherein the transverse adjustment rod (6) is rotatably connected to one end of the connection member (10), the sealing member is arranged at one end of the transverse adjustment rod (6), and the other end is connected to one end of the longitudinal adjustment rod (7), and the float (4) is installed at the other end of the longitudinal adjustment rod (7).
2. The device for preventing the atmospheric pressure leaching tank from bubbling according to claim 1, wherein: The length of the lateral adjustment rod (6) is adjustable.
3. The device for preventing atmospheric pressure leaching tank from bubbling according to claim 1, wherein: The connection position between the longitudinal adjustment rod (7) and the transverse adjustment rod (6) is adjustable.
4. The device for preventing atmospheric pressure leaching tank from bubbling according to claim 1, wherein: The sealing component comprises a sealing cover (8) and a sealing ring (5).
5. The device for preventing atmospheric pressure leaching tank from bubbling according to claim 1, wherein: The defoaming agent storage tank (1) is provided with a filter screen (9).
6. The device for preventing atmospheric pressure leaching tank from bubbling according to claim 1, wherein: The longitudinal adjustment rod (7) and the transverse adjustment rod (6) are perpendicular to each other.