Reaction kettle device
By designing a detachable discharge nozzle and overflow pipe connection structure in the reactor device, the problem of difficult disassembly of the overflow pipe in the hydrometallurgical process of nickel-cobalt ore was solved, achieving convenient disassembly and improved sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-07
AI Technical Summary
In the hydrometallurgical process of nickel-cobalt ore, the difficulty in removing the overflow pipe from the reactor is mainly due to the high viscosity of the material, which causes sludge to accumulate and form debris between the overflow pipe and the connecting channel. As the disassembly process progresses, the resistance increases, making disassembly difficult.
A reactor device was designed in which the conical part of the discharge nozzle gradually narrows away from the overflow pipe and is connected by a flange and threaded fasteners to achieve a detachable connection between the overflow pipe and the discharge nozzle. Combined with a positioning structure and a sealing gasket, the gap between the conical part and the connection channel is increased to loosen the debris and reduce the disassembly resistance.
By increasing the gap between the conical part and the connecting channel, the density of debris accumulation is reduced, the ease of disassembly of the discharge nozzle and overflow pipe is improved, maintenance costs are reduced, and assembly accuracy and sealing are enhanced.
Smart Images
Figure CN224086672U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of metallurgical equipment technology, specifically relating to a reaction vessel device. Background Technology
[0002] In the hydrometallurgical process of nickel-cobalt ore, a five-reactor method is typically used. Five reactors are connected sequentially via overflow pipes to achieve step-by-step material transport and reaction. Each reactor has a reaction chamber and a connecting channel communicating with the reaction chamber. A discharge pipe is installed inside the reaction chamber, with one end extending into the connecting channel. An overflow pipe is inserted into the connecting channel and fitted over the discharge pipe, allowing material in the reactor to enter the overflow pipe through the discharge pipe. During material transport, some material typically flows out to the outside of the overflow pipe. The high viscosity of the material makes it prone to accumulating and forming clumps between the outer wall of the overflow pipe and the inner wall of the connecting channel. When disassembling the overflow pipe, the clumps break into fragments under the disassembly force. As the overflow pipe is continuously pulled out, the fragments accumulate, increasing in density and thus increasing the resistance to extraction, making disassembly difficult. Utility Model Content
[0003] The purpose of this application is to provide a reaction vessel device that solves the technical problem of difficulty in removing the overflow pipe from the reaction vessel in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in this application is: a reaction vessel device, including a reaction vessel, a discharge pipe, an overflow pipe, and a discharge nozzle. The reaction vessel is provided with a reaction chamber and a connecting channel communicating with the reaction chamber. One end of the discharge pipe is located in the reaction chamber, and the other end of the discharge pipe is located in the connecting channel and communicates with the overflow pipe through the discharge nozzle. The discharge nozzle includes a conical part, which is provided with a connecting hole communicating with the cavity of the overflow pipe. The outer dimensions of the conical part gradually decrease in the direction away from the overflow pipe. The conical part is inserted into the connecting channel and sleeved on the discharge pipe through the connecting hole.
[0005] Furthermore, the discharge nozzle is detachably connected to the overflow pipe.
[0006] Furthermore, the reactor device also includes a first flange and threaded fasteners. The first flange is fixedly disposed at one end of the overflow pipe near the conical part, and the discharge nozzle also includes a second flange fixedly disposed at one end of the conical part near the overflow pipe. The first flange and the second flange are connected and fixed by threaded fasteners.
[0007] Furthermore, the reactor apparatus also includes a first sealing gasket, the opposite sides of which abut against the first flange and the second flange, respectively.
[0008] Furthermore, the second flange is integrally formed with the tapered portion.
[0009] Further, the reaction kettle device further comprises a third flange fixedly arranged on the reaction kettle, and the first flange, the second flange and the third flange are fixedly connected through threaded fasteners.
[0010] Further, the reaction kettle device further comprises a second sealing gasket, and opposite sides of the second sealing gasket are in abutment with the second flange and the third flange respectively.
[0011] Further, a positioning structure is arranged in the connecting hole, and the positioning structure is in abutment with the discharge pipe to axially position the discharge nozzle.
[0012] Further, the connecting hole comprises a first hole section and a second hole section connected in communication, the second hole section is located on a side of the first hole section away from the overflow pipe, the hole diameter of the second hole section is greater than that of the first hole section, an annular positioning surface facing the discharge pipe is formed at the junction of the second hole section and the first hole section, the annular positioning surface is the positioning structure, and the discharge pipe is inserted into the second hole section and abuts against the annular positioning surface.
[0013] Further, the connecting channel is in a cylindrical shape, and the outer shape of the tapered portion is in a frustoconical shape.
[0014] Compared with the prior art, the reaction kettle device provided by the present application has the beneficial effects that, during work, the material in the reaction cavity of the reaction kettle can enter the overflow pipe through the discharge pipe and the discharge nozzle, and then be transported to the lower-stage reaction kettle through the overflow pipe. During the material transportation process, part of the material will flow out to the outside of the discharge nozzle, and due to high viscosity, the material will accumulate and form clumps between the outer wall of the tapered portion of the discharge nozzle and the inner wall of the connecting channel. When the overflow pipe and the discharge nozzle are disassembled, the clumps will produce slag under the action of the disassembling force, and the slag will become more and more as the discharge nozzle is continuously extracted. By gradually reducing the outer dimension of the tapered portion of the discharge nozzle in the direction away from the overflow pipe, the gap between the outer wall of the tapered portion and the inner wall of the connecting channel can be gradually increased in the direction away from the overflow pipe. Compared with keeping the gap unchanged, the increase of the gap is beneficial to loosen the slag, reduces the packing density of the slag, thereby reducing the extraction resistance of the discharge nozzle, and improving the convenience of disassembling the discharge nozzle and the overflow pipe. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0016] Figure 1 The cross-sectional view of the reaction kettle device provided by the embodiments of the present application is shown in the figure.
[0017] Figure 2 The cross-sectional view of the reaction kettle device provided by the embodiments of the present application is shown in the figure. Figure 1A sectional view of a discharge nozzle of the reactor device shown.
[0018] In the drawings:
[0019] 10, reactor; 11, connecting passage;
[0020] 20, discharge pipe;
[0021] 30, overflow pipe;
[0022] 40, discharge nozzle; 41, tapered portion; 411, connecting hole; 4111, first hole section; 4112, second hole section; 4113, annular positioning surface; 42, second flange;
[0023] 50, first flange;
[0024] 60, threaded fastener;
[0025] 70, first gasket;
[0026] 80, third flange;
[0027] 90, second gasket. DETAILED DESCRIPTION
[0028] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0029] In the description of the present application, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 purpose of facilitating the description of the present application and simplifying the 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 cannot be understood as a limitation of the present application.
[0030] In addition, the terms "first", "second" are only for the purpose of description, 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 "a plurality of" is two or more, unless otherwise specifically limited.
[0031] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly interpreted, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0032] In the process of nickel-cobalt ore hydrometallurgy, pressure leaching process is usually used. Hydrometallurgy is a process of chemical treatment or organic solvent extraction of metal mineral raw materials in acid or alkaline aqueous solution, separation of impurities, extraction of metals and their compounds, while pressure leaching process is a process of treating ore or concentrate with solution under pressure greater than 9.8692×104Pa, which is carried out in a closed reaction vessel by increasing the reaction temperature above the boiling point of the solution. The main features include: increasing the leaching temperature, accelerating the leaching speed, thereby greatly shortening the leaching time; pressure leaching can make some reactions that cannot be carried out at normal temperature and pressure possible; pressure can make some gases (such as oxygen) or volatile reagents (such as ammonia) have a higher partial pressure during leaching, so that the reaction can be carried out under more effective conditions, thereby strengthening the leaching process and improving the metal extraction rate.
[0033] Pressure oxidation leaching method is a kind of pressure leaching process, which is widely used in the upstream process of 3C precursor raw materials such as nickel, copper and cobalt. By using pressure kettle under certain temperature, pressure and oxygen, direct acid leaching of sulfide ore is carried out, copper in sulfide ore is converted into copper sulfide, and nickel sulfate in leaching solution is converted into sulfide through sulfuration, realizing nickel-copper separation, and entering leaching residue and leaching solution system respectively, and then treated by extraction, purification, flotation, hot filtration and other processes to produce corresponding products.
[0034] Currently, the pressure oxidation leaching method generally selects a five-kettle method, five reaction kettles are connected in sequence through "Z" shaped overflow pipes to realize the step-by-step conveying reaction of materials, and finally realize the separation of copper and nickel. The reaction kettle is generally provided with a reaction cavity and a connecting channel communicated with the reaction cavity, a discharge pipe is arranged in the reaction cavity, one end of the discharge pipe extends into the connecting channel, the overflow pipe is inserted into the connecting channel and sleeved on the discharge pipe, so that the materials in the reaction kettle can enter the overflow pipe through the discharge pipe, and then conveyed to the next stage reaction kettle through the overflow pipe. In the process of conveying the materials, due to the poor sealing, the materials will usually flow out to the outside of the overflow pipe, and the high viscosity of the materials makes it easy to accumulate and form clumps between the outer wall of the overflow pipe and the inner wall of the connecting channel, when the overflow pipe is disassembled, the clumps will produce slag under the action of disassembling force, and with the continuous extraction of the overflow pipe, the slag will accumulate more and more, and the bulk density will also become larger and larger, so that the extraction resistance of the overflow pipe becomes larger and larger, resulting in the problem of difficult disassembly of the overflow pipe.
[0035] As shown in Figure 1 The embodiment of the present application provides a reaction kettle device, which comprises a reaction kettle 10, a discharge pipe 20, an overflow pipe 30 and a discharge nozzle 40, the reaction kettle 10 is provided with a reaction cavity (not shown) and a connecting channel 11 communicated with the reaction cavity, one end of the discharge pipe 20 is located in the reaction cavity, the other end of the discharge pipe 20 is located in the connecting channel 11 and communicated with the overflow pipe 30 through the discharge nozzle 40, the discharge nozzle 40 comprises a conical part 41, the conical part 41 is provided with a connecting hole 411 communicated with the lumen of the overflow pipe 30, the outer dimension of the conical part 41 gradually reduces in the direction away from the overflow pipe 30, the conical part 41 is inserted into the connecting channel 11 and sleeved on the discharge pipe 20 through the connecting hole 411.
[0036] In operation, the material in the reaction cavity of the reaction kettle 10 can pass through the discharge pipe 20 and the discharge nozzle 40 into the overflow pipe 30, and then be transported to the next reaction kettle 10 through the overflow pipe 30. During the material transportation process, part of the material will flow out to the outside of the discharge nozzle 40 and accumulate to form a lump between the outer wall of the conical part 41 of the discharge nozzle 40 and the inner wall of the connecting channel 11 due to high viscosity. When the overflow pipe 30 and the discharge nozzle 40 are disassembled, the lump will be crushed under the action of the disassembling force, and the crushed slag will increase with the continuous extraction of the discharge nozzle 40. By gradually reducing the size of the conical part 41 of the discharge nozzle 40 away from the overflow pipe 30, the gap between the outer wall of the conical part 41 and the inner wall of the connecting channel 11 can be gradually increased away from the overflow pipe 30. Compared with keeping the gap unchanged, the increase of the gap is beneficial to loosen the crushed slag, reduce the bulk density of the crushed slag, thereby reducing the extraction resistance of the discharge nozzle 40 and improving the convenience of disassembling the discharge nozzle 40 and the overflow pipe 30. In addition, by gradually increasing the gap between the outer wall of the conical part 41 and the inner wall of the connecting channel 11 away from the overflow pipe 30, i.e. gradually reducing the gap between the outer wall of the conical part 41 and the inner wall of the connecting channel 11 towards the overflow pipe 30, compared with keeping the gap unchanged, the volume of the material lump can be reduced by half, thereby improving the convenience of disassembling the discharge nozzle 40 and the overflow pipe 30.
[0037] Specifically, the connecting channel 11 is in a cylindrical shape, and the outer shape of the conical part 41 is in a circular truncated cone shape, so that an annular gap can be formed between the outer wall of the conical part 41 and the inner wall of the connecting channel 11, and the annular gap gradually increases away from the overflow pipe 30.
[0038] In an embodiment, the discharge nozzle 40 is detachably connected with the overflow pipe 30. The discharge nozzle 40 is more prone to damage than the overflow pipe 30. By detachably connecting the discharge nozzle 40 with the overflow pipe 30, when the discharge nozzle 40 is damaged, the discharge nozzle 40 can be replaced alone without the need for overall replacement, which is beneficial to reduce the maintenance cost. In addition, the end of the traditional overflow pipe is also provided with a discharge nozzle, but the overflow pipe and the discharge nozzle are generally welded and fixed, and when disassembled, the whole needs to be extracted from the connecting channel of the reaction kettle, which consumes a lot of effort, and when the surrounding space is relatively narrow, the disassembly work will be more difficult. In the present embodiment, the discharge nozzle 40 is detachably connected with the overflow pipe 30, and when disassembled, the discharge nozzle 40 and the overflow pipe 30 can be disassembled first, and then the discharge nozzle 40 can be extracted from the connecting channel 11 of the reaction kettle 10, which can greatly improve the convenience of disassembly.
[0039] In an embodiment, as shown in FIG. 1, the discharge nozzle 40 is provided with a conical part 41, and the conical part 41 is arranged in the connecting channel 11 of the reaction kettle 10. Figure 1As shown, the reaction kettle device further comprises a first flange 50 fixedly arranged at one end of the overflow pipe 30, and the discharge nozzle 40 further comprises a second flange 42 fixedly arranged on the conical portion 41, and the first flange 50 and the second flange 42 are fixedly connected through the threaded fastener 60. By fixing the first flange 50 on the overflow pipe 30 and fixing the second flange 42 on the conical portion 41, and connecting and fixing the first flange 50 and the second flange 42 through the threaded fastener 60, the overflow pipe 30 and the discharge nozzle 40 are fixed. When disassembly is required, only the threaded fastener 60 needs to be removed, and the discharge nozzle 40 and the overflow pipe 30 can be disassembled, which is very convenient. Specifically, the first flange 50 is annular and surrounds the overflow pipe 30, and the first flange 50 is provided with a plurality of first fixing holes which are uniformly distributed in the circumferential direction. The second flange 42 is annular and surrounds the conical portion 41, and the second flange 42 is provided with a plurality of second fixing holes which are uniformly distributed in the circumferential direction. The plurality of second fixing holes are aligned with the plurality of first fixing holes one by one. The number of threaded fasteners 60 is consistent with the number of first fixing holes and second fixing holes. The threaded fastener 60 can be a combination of bolts and nuts. A plurality of bolts pass through the plurality of first fixing holes and the plurality of second fixing holes and are threadedly connected with a plurality of nuts one by one. The first flange 50 and the overflow pipe 30 can be fixed by welding or threaded connection, or can be integrally formed.
[0040] In one embodiment, the second flange 42 is integrally formed with the conical portion 41. Integrally forming the second flange 42 with the conical portion 41 can improve the structural strength of the entire discharge nozzle 40 and prolong the service life. Of course, in some other embodiments, the second flange 42 and the conical portion 41 can also be fixed by welding or threaded connection.
[0041] In one embodiment, as shown in Figure 1 The reaction kettle device further comprises a first sealing gasket 70, and opposite sides of the first sealing gasket 70 abut against the first flange 50 and the second flange 42, respectively. By arranging the first sealing gasket 70 between the first flange 50 and the second flange 42, and abutting the opposite sides of the first sealing gasket 70 against the first flange 50 and the second flange 42 when the first flange 50 and the second flange 42 are connected and fixed through the threaded fastener 60, sealing can be achieved, and material flow from the gap between the first flange 50 and the second flange 42 to the external environment can be avoided. Specifically, the first sealing gasket 70 is annular and completely fills the gap between the first flange 50 and the second flange 42 in the circumferential direction to ensure the sealing effect.
[0042] In one embodiment, as shown in Figure 1As shown, the reaction kettle device further comprises a third flange 80 fixedly arranged on the reaction kettle 10, and the first flange 50, the second flange 42 and the third flange 80 are fixedly connected by the threaded fastener 60. By arranging the third flange 80 on the reaction kettle 10 and connecting and fixing the first flange 50, the second flange 42 and the third flange 80 by the threaded fastener 60, the overflow pipe 30, the discharge nozzle 40 and the reaction kettle 10 can be reliably fixed together, thereby ensuring reliable conveying of the material. When it is necessary to disassemble the overflow pipe 30 and the discharge nozzle 40, the threaded fastener 60 is first removed, the discharge nozzle 40 and the overflow pipe 30 are disassembled, and then the discharge nozzle 40 can be pulled out of the connecting channel 11. Specifically, the third flange 80 is annular and surrounds the conical portion 41, the third flange 80 is provided with a plurality of third fixing holes which are uniformly distributed in the circumferential direction, the plurality of third fixing holes are one-to-one aligned with the plurality of second fixing holes, and the plurality of bolts are respectively connected with the plurality of nuts after passing through the plurality of first fixing holes, the second fixing holes and the third fixing holes. The third flange 80 and the reaction kettle 10 can be fixed by welding or threaded connection, or can be integrally formed.
[0043] In one embodiment, as shown in Figure 1 The reaction kettle device further comprises a second sealing gasket 90, and opposite sides of the second sealing gasket 90 abut against the second flange 42 and the third flange 80, respectively. By arranging the second sealing gasket 90 between the second flange 42 and the third flange 80, when the first flange 50, the second flange 42 and the third flange 80 are connected and fixed by the threaded fastener 60, the opposite sides of the second sealing gasket 90 abut against the second flange 42 and the third flange 80, respectively, so that sealing can be achieved, thereby preventing the material from flowing out of the gap between the second flange 42 and the third flange 80 to the external environment. Specifically, the second sealing gasket 90 is annular and completely fills the gap between the second flange 42 and the third flange 80 in the circumferential direction to ensure the sealing effect.
[0044] In one embodiment, a positioning structure is arranged in the connecting hole 411, and the positioning structure abuts against the discharge pipe 20 to axially position the discharge nozzle 40. By arranging the positioning structure to axially position the discharge nozzle 40, the assembly precision and efficiency can be improved. When installing the discharge nozzle 40, the discharge nozzle 40 is inserted into the connecting channel 11 and is sleeved on the discharge pipe 20 through the connecting hole 411 until the positioning structure in the connecting hole 411 abuts against the discharge pipe 20.
[0045] In one embodiment, in combination Figure 1 and Figure 2As shown, the connecting hole 411 includes a first hole section 4111 and a second hole section 4112 connected in sequence, the second hole section 4112 is located on the side of the first hole section 4111 away from the overflow pipe 30, the hole diameter of the second hole section 4112 is larger than that of the first hole section 4111, and the junction of the second hole section 4112 and the first hole section 4111 forms an annular positioning surface 4113 facing the discharge pipe 20, the annular positioning surface 4113 is the positioning structure mentioned above, and the discharge pipe 20 is inserted into the second hole section 4112 and abuts against the annular positioning surface 4113. By setting the first hole section 4111 and the second hole section 4112 with different hole diameters, and making the hole diameter of the second hole section 4112 larger than that of the first hole section 4111, the annular positioning surface 4113 facing the discharge pipe 20 can be formed at the junction of the second hole section 4112 and the first hole section 4111, and the width of the annular positioning surface 4113 is the difference between the radii of the second hole section 4112 and the first hole section 4111. During installation, the discharge nozzle 40 is inserted into the connecting channel 11, and the discharge pipe 20 is inserted into the second hole section 4112 of the connecting hole 411 until the annular positioning surface 4113 abuts against the end of the discharge pipe 20, so as to realize the axial positioning of the discharge nozzle 40. During the material conveying process, the material in the reaction cavity enters the overflow pipe 30 channel after passing through the discharge pipe 20 and the second hole section 4112 in sequence, and is then conveyed to the next reaction kettle 10 through the overflow pipe 30 channel. The hole diameter of the second hole section 4112 can be matched with the pipe diameter of the discharge pipe 20, so as to enhance the limiting effect of the discharge nozzle 40.
[0046] It should be noted that the above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A reaction vessel apparatus, characterized in that, The device includes a reaction vessel, a discharge pipe, an overflow pipe, and a discharge nozzle. The reaction vessel has a reaction chamber and a connecting channel communicating with the reaction chamber. One end of the discharge pipe is located inside the reaction chamber, and the other end of the discharge pipe is located inside the connecting channel and communicates with the overflow pipe through the discharge nozzle. The discharge nozzle includes a conical portion, which has a connecting hole communicating with the cavity of the overflow pipe. The outer dimensions of the conical portion gradually decrease in the direction away from the overflow pipe. The conical portion is inserted into the connecting channel and sleeved on the discharge pipe through the connecting hole.
2. The reactor apparatus according to claim 1, characterized in that: The discharge nozzle is detachably connected to the overflow pipe.
3. The reactor apparatus according to claim 2, characterized in that: The reactor device further includes a first flange and a threaded fastener. The first flange is fixedly disposed at one end of the overflow pipe near the conical part. The discharge nozzle further includes a second flange fixedly disposed at one end of the conical part near the overflow pipe. The first flange and the second flange are connected and fixed by the threaded fastener.
4. The reactor apparatus according to claim 3, characterized in that: The reactor apparatus further includes a first sealing gasket, the opposite sides of which abut against the first flange and the second flange, respectively.
5. The reactor apparatus according to claim 3, characterized in that: The second flange is integrally formed with the tapered portion.
6. The reactor apparatus according to claim 3, characterized in that: The reactor device also includes a third flange, which is fixedly mounted on the reactor. The first flange, the second flange, and the third flange are connected and fixed by the threaded fasteners.
7. The reactor apparatus according to claim 6, characterized in that: The reactor apparatus further includes a second sealing gasket, the opposite sides of which abut against the second flange and the third flange, respectively.
8. The reactor apparatus according to claim 1, characterized in that: A positioning structure is provided inside the connecting hole, and the positioning structure abuts against the discharge pipe to axially position the discharge nozzle.
9. The reactor apparatus according to claim 8, characterized in that: The connecting hole includes a first hole segment and a second hole segment that are connected to each other. The second hole segment is located on the side of the first hole segment away from the overflow pipe. The diameter of the second hole segment is larger than the diameter of the first hole segment. The junction of the second hole segment and the first hole segment forms an annular positioning surface facing the discharge pipe. The annular positioning surface is the positioning structure. The discharge pipe is inserted into the second hole segment and abuts against the annular positioning surface.
10. The reactor apparatus according to any one of claims 1-9, characterized in that: The connecting channel is cylindrical, and the conical part is shaped like a frustum.