Acid adding device and autoclave

Abstract

The invention belongs to the technical field of laterite nickel ore treatment equipment, and discloses an acid adding device and an autoclave. The acid adding device is applied to a high-pressure kettle body, the high-pressure kettle body is provided with an acid adding hole, the acid adding device comprises an acid adding pipe, a transmission mechanism and a plurality of abutting pieces, the acid adding pipe extends into the high-pressure kettle body through the acid adding hole and can rotate around the axis of the acid adding pipe, and the transmission mechanism is in transmission connection with the acid adding pipe. The multiple abutting pieces are arranged at the output end of the transmission mechanism in the circumferential direction of the acid adding pipe, and the acid adding pipe rotates to drive the output end of the transmission mechanism to move in the radial direction of the acid adding pipe so that the abutting pieces can move close to or away from the hole wall of the acid adding hole. By rotating the acid adding pipe, the output end of the transmission mechanism can be driven to move in the radial direction of the acid adding pipe, so that the abutting pieces move close to the hole wall of the acid adding hole until the abutting pieces abut against the hole wall of the acid adding hole, the multiple abutting pieces can jointly fix and support the acid adding pipe, the acid adding pipe is prevented from shaking, fatigue damage of the acid adding pipe is prevented, and the service life of the acid adding pipe is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of laterite nickel ore processing equipment, in particular to an acid adding device and an autoclave. Background Art

[0002] Currently, in the hydrometallurgical process of laterite nickel ore, slurry, sulfuric acid and steam are usually injected into a high-pressure reactor for smelting to leach nickel and cobalt from the laterite nickel ore.

[0003] Chinese patent CN211256037U discloses an acid adding device and an autoclave having the same, comprising: an acid adding channel; a first sealing member, which is welded to the outer wall of one end of the acid adding channel and is suitable for stopping and sealing a concentrated sulfuric acid pipeline; a first connecting member, which is movably arranged around the acid adding channel and is located on one side of the first sealing member and is suitable for fixing the concentrated sulfuric acid pipeline; a second connecting member, which is movably arranged around the acid adding channel and is located on a side of the first connecting member away from the first sealing member and is suitable for connecting to a high pressure autoclave pipe mouth; a second sealing member, which is welded to the outer wall of the acid adding channel and is located on a side of the second connecting member away from the first connecting member and is suitable for stopping and sealing the high pressure autoclave pipe mouth.

[0004] In the above technology, the pipeline is inserted into the fixing part for fixing. However, there is a gap between the fixing part and the pipeline, which causes the pipeline to still have a small amplitude vibration during the acid addition process, resulting in serious fatigue damage, which significantly reduces the service life of the acid addition device.

[0005] Therefore, it is necessary to provide an acid adding device and an autoclave to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an acid adding device and an autoclave, wherein a plurality of abutment members can jointly fix and support an acid adding tube to prevent the acid adding tube from shaking during the acid adding process, thereby reducing the problem of fatigue damage caused by the shaking of the acid adding tube.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] An acid adding device is applied to an autoclave, the autoclave is provided with an acid adding hole, and the acid adding device comprises:

[0009] An acid adding tube, extending into the autoclave through the acid adding hole, and the acid adding tube can rotate around its own axis;

[0010] A transmission mechanism and a plurality of abutments, wherein the transmission mechanism is transmission-connected to the acid-adding tube, and the plurality of abutments are arranged at the output end of the transmission mechanism around the circumference of the acid-adding tube. The rotation of the acid-adding tube can drive the output end of the transmission mechanism to move along the radial direction of the acid-adding tube, so that the abutments move close to or away from the hole wall of the acid-adding hole.

[0011] Preferably, the transmission mechanism comprises:

[0012] Two connecting sleeves are arranged at intervals on the outer circumference of the acid adding pipe, at least one of the connecting sleeves is threadedly connected to the acid adding pipe, and the acid adding pipe rotates to drive the two connecting sleeves to move closer to or away from each other;

[0013] A plurality of scissor-type fork assemblies, each of which comprises two rotatably connected connecting rods, one end of each of the two connecting rods being rotatably connected to each of the two connecting sleeves, the other end of each of the connecting rods being slidably connected to the abutment, and the other end of each of the other connecting rods being rotatably connected to the abutment.

[0014] Preferably, one of the connecting sleeves is rotatably connected to the acid adding tube, and the other connecting sleeve is threadedly connected to the acid adding tube. The wall of the acid adding hole is provided with a first limiting groove, and the outer periphery of one of the connecting sleeves is provided with a first limiting protrusion, and the first limiting protrusion is limitedly matched with the first limiting groove to limit the rotation of one of the connecting sleeves.

[0015] Preferably, the side of the abutment member facing the hole wall of the acid addition hole is arc-shaped.

[0016] Preferably, an anti-slip layer is provided on one side of the abutment member facing the hole wall of the acid addition hole.

[0017] Preferably, the acid adding device further comprises a connecting component, which is sleeved on the outer circumference of the acid adding pipe and can be sealingly connected to the end face of the acid adding hole.

[0018] Preferably, the acid adding device comprises a first flange and a plurality of locking members, wherein the locking members pass through the first flange and the autoclave body to connect the first flange to the autoclave body.

[0019] Preferably, the acid adding device further comprises a first sealing ring, wherein the first sealing ring is located below the first flange, and the first sealing ring is used for sealing with the end face of the acid adding hole.

[0020] Preferably, a second limiting protrusion is provided on the outer periphery of the acid adding tube, and a second limiting groove is provided on the first flange, and the second limiting groove and the second limiting protrusion are limitedly matched so that the first flange and the acid adding tube can rotate synchronously.

[0021] An autoclave comprises an autoclave body and the acid adding device as described above.

[0022] Beneficial effects of the present invention:

[0023] The acid adding device is applied to the autoclave body. The autoclave body is provided with an acid adding hole. The acid adding device comprises an acid adding pipe, a transmission mechanism and a plurality of abutment members. The acid adding pipe extends into the autoclave body through the acid adding hole. The acid adding pipe can rotate around its own axis. The transmission mechanism is in transmission connection with the acid adding pipe. The plurality of abutment members are arranged at the output end of the transmission mechanism around the circumference of the acid adding pipe. The rotation of the acid adding pipe can drive the output end of the transmission mechanism to move along the radial direction of the acid adding pipe, so that the abutment members move close to or away from the hole wall of the acid adding hole.

[0024] One end of the acid adding tube extends from the acid adding hole into the autoclave body, and the acid adding tube is arranged to rotate along its own axis. It can be understood that the diameter of the acid adding tube is smaller than the diameter of the acid adding hole; by rotating the acid adding tube, the output end of the transmission mechanism can be driven to move radially along the acid adding tube, so that the abutment moves close to the hole wall of the acid adding hole until the abutment abuts against the hole wall of the acid adding hole, so that when acid is added, multiple abutments can jointly play the role of fixing and supporting the acid adding tube to prevent the acid adding tube from shaking, so as to prevent fatigue damage to the acid adding tube and extend the life of the acid adding tube. When used specifically, firstly extend part of the acid adding tube into the acid adding hole, at which time the abutment is located in the acid adding hole, and then rotate the acid adding tube, and drive the abutment to move toward the direction close to the hole wall of the acid adding tube through the transmission mechanism, so that the abutment abuts against the hole wall of the acid adding hole, and the abutment between the abutment and the hole wall of the acid adding hole is used to fix the part of the acid adding tube extending into the autoclave body, so as to prevent the acid adding tube from shaking during the acid adding process.

[0025] The present invention arranges the acid adding tube and the transmission mechanism, and arranges a plurality of abutment members at the output end of the transmission mechanism. The acid adding tube can be rotated to drive the plurality of abutment members to abut against the side wall of the acid adding hole, so that the plurality of abutment members can jointly fix and support the acid adding tube, thereby preventing the acid adding tube from shaking during the acid adding process. The structure is simple and ingenious, and the abutment members can be driven to move without an additional driving device, thereby reducing the problem of fatigue damage caused by the shaking of the acid adding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural schematic diagram of the autoclave provided by the present invention;

[0027] Figure 2 This is one of the cross-sectional views of the autoclave body and the acid adding device provided by the present invention;

[0028] Figure 3 This is the second cross-sectional view of the autoclave body and the acid adding device provided by the present invention;

[0029] Figure 4 It is a structural schematic diagram of the acid adding device provided by the present invention;

[0030] Figure 5 This is a front view of the acid adding device provided by the present invention;

[0031] Figure 6 It is a partial schematic diagram of the acid adding device provided by the present invention;

[0032] Figure 7 It is a cross-sectional view of the acid adding device provided by the present invention.

[0033] In the figure:

[0034] 100, acid adding device; 200, autoclave body; 210, acid adding hole; 220, first limiting groove;

[0035] 1. Acid adding tube; 11. Second limiting protrusion;

[0036] 2. Connecting assembly; 21. First sealing ring; 22. First flange; 221. Second limiting groove;

[0037] 3. abutment member; 31. oblong hole;

[0038] 4. Transmission mechanism; 41. Connecting sleeve; 411. First limiting protrusion; 42. Connecting rod;

[0039] 5. Second flange;

[0040] 6. Second sealing ring. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] like Figure 1-Figure 7 As shown, this embodiment provides an acid adding device 100, which is applied to an autoclave body 200. The autoclave body 200 is provided with an acid adding hole 210. The acid adding device 100 includes an acid adding tube 1, a transmission mechanism 4 and a plurality of abutments 3. The acid adding tube 1 extends into the autoclave body 200 through the acid adding hole 210. The acid adding tube 1 can rotate around its own axis. The transmission mechanism 4 is transmission-connected to the acid adding tube 1. A plurality of abutments 3 are arranged at the output end of the transmission mechanism 4 around the circumference of the acid adding tube 1. The rotation of the acid adding tube 1 can drive the output end of the transmission mechanism 4 to move along the radial direction of the acid adding tube 1, so that the abutments 3 move close to or away from the hole wall of the acid adding hole 210.

[0046] One end of the acid adding tube 1 extends from the acid adding hole 210 into the autoclave body 200, and the acid adding tube 1 is rotatably arranged along its own axis. It can be understood that the diameter of the acid adding tube 1 is smaller than the diameter of the acid adding hole 210; by rotating the acid adding tube 1, the output end of the transmission mechanism 4 can be driven to move radially along the acid adding tube 1, so that the abutment 3 moves close to the hole wall of the acid adding hole 210 until the abutment 3 abuts against the hole wall of the acid adding hole 210, so that when acid is added, multiple abutments 3 can jointly play the role of fixing and supporting the acid adding tube 1 to prevent the acid adding tube 1 from shaking, thereby preventing the acid adding tube 1 from fatigue damage and extending the life of the acid adding tube 1.

[0047] During specific use, firstly, part of the acid adding tube 1 is extended into the acid adding hole 210, at which time the abutment 3 is located in the acid adding hole 210, and then the acid adding tube 1 is rotated, and the abutment 3 is driven by the transmission mechanism 4 to move toward the direction close to the hole wall of the acid adding tube 1, so that the abutment 3 abuts against the hole wall of the acid adding hole 210, and the abutment between the abutment 3 and the hole wall of the acid adding hole 210 is utilized to fix the part of the acid adding tube 1 extending into the autoclave body 200, so as to prevent the acid adding tube 1 from shaking during the acid adding process.

[0048] In this embodiment, the acid adding tube 1 is arranged in a transmission manner with the transmission mechanism 4, and a plurality of abutting members 3 are arranged at the output end of the transmission mechanism 4. The plurality of abutting members 3 can be driven to abut against the side wall of the acid adding hole 210 by rotating the acid adding tube 1, so that the plurality of abutting members 3 can jointly fix and support the acid adding tube 1, thereby preventing the acid adding tube 1 from shaking during the acid adding process. The structure is simple and ingenious, and the abutting members 3 can be driven to move without an additional driving device, thereby reducing the problem of fatigue damage caused by the shaking of the acid adding tube 1.

[0049] It is understandable that the acid adding tube 1 can be set forward and reversely, and the abutment 3 has a fixed state in which it abuts against the hole wall of the acid adding hole 210 and an unlocked state in which it is out of contact with the hole wall of the acid adding hole 210. In the initial state, the abutment 3 is in the unlocked state, the acid adding tube 1 is inserted into the acid adding hole 210, and then the acid adding tube 1 is rotated, and the abutment 3 is driven by the transmission mechanism 4 to move toward the direction close to the hole wall of the acid adding hole 210 until it abuts against the hole wall of the acid adding hole 210, so as to switch to the fixed state, and the acid adding tube 1 is fixed, and then the acid adding tube 1 is docked with the acid liquid pipeline to transport the acid liquid. When disassembly and maintenance are required, the acid adding tube 1 is rotated in the opposite direction, and the abutment 3 is driven by the transmission mechanism 4 to move toward the direction away from the hole wall of the acid adding hole 210 until it is out of contact with the hole wall of the acid adding hole 210, so as to switch to the unlocked state, and the acid adding device 100 can be taken out of the autoclave body 200.

[0050] Specifically, Figure 2-Figure 6As shown, the transmission mechanism 4 includes two connecting sleeves 41 and a plurality of scissor-fork assemblies. The two connecting sleeves 41 are movably arranged at intervals on the outer periphery of the acid-adding tube 1. At least one connecting sleeve 41 is threadedly connected to the acid-adding tube 1. The acid-adding tube 1 rotates to drive the two connecting sleeves 41 to move closer to or farther from each other. The scissor-fork assembly includes two rotatably connected connecting rods 42. One end of the two connecting rods 42 is rotatably connected to the two connecting sleeves 41 respectively. The other end of one connecting rod 42 is slidably connected to the abutment 3, and the other end of the other connecting rod 42 is rotatably connected to the abutment 3. At least one connecting sleeve 41 is threadedly connected to the acid-adding tube 1 so that when the acid-adding tube 1 rotates, the two connecting sleeves 41 can be driven to move in the axial direction to move closer to or farther from each other, thereby rotating the two connecting rods 42 of the scissor-fork assembly to change the length of the scissor-fork assembly along the radial direction of the acid-adding tube 1, thereby driving the abutment 3 to move in the radial direction of the acid-adding tube 1. By setting the two connecting sleeves 41 and the plurality of scissor-fork assemblies, the rotational motion of the acid-adding tube 1 is converted into the radial motion of the abutment 3. The structure is ingenious and the operation is simple.

[0051] It should be noted that when the two connecting sleeves 41 are threadedly connected to the acid adding pipe 1, the acid adding pipe 1 should be provided with threads with opposite rotation directions at both ends so that when the acid adding pipe 1 is rotated, the two connecting sleeves 41 will move in opposite directions to move closer or farther away.

[0052] In an optional embodiment, if Figure 6 As shown, the abutment member 3 is provided with an elongated hole 31 and a mounting hole, the mounting hole and the elongated hole 31 are arranged at intervals, the elongated hole 31 extends along the length direction of the abutment member 3, the two ends and the middle part of the two connecting rods 42 are provided with a first pin hole, the outer periphery of the two connecting sleeves 41 is provided with a mounting protrusion, the mounting protrusion is provided with a second pin hole, the two ends of one connecting rod 42 are respectively rotatably connected with the mounting hole of the abutment member 3 and the second pin hole of one connecting sleeve 41 through a pin shaft, one end of the other connecting rod 42 is slidably and rotatably installed in the elongated hole 31 through a pin shaft, and the other end thereof is rotatably installed in the second pin hole of another connecting sleeve 41 through a pin shaft, and the middle parts of the two connecting rods 42 are rotatably connected through a pin shaft. When the two connecting sleeves 41 approach each other, the abutment member 3 moves close to the hole wall of the acid adding hole 210; when the two connecting sleeves 41 move away from each other, the abutment member 3 moves away from the hole wall of the acid adding hole 210.

[0053] In this embodiment, one connecting sleeve 41 is rotatably connected to the acid adding pipe 1, and the other connecting sleeve 41 is threadedly connected to the acid adding pipe 1, so that the connecting sleeve 41 can be driven by the rotation of the acid adding pipe 1 to move along the axial direction of the acid adding pipe 1 to approach or move away from one connecting sleeve 41. At this time, in order to avoid the problem that the rotation of the acid adding pipe 1 drives one connecting sleeve 41 to rotate, resulting in the problem of misalignment and fracture of the scissor assembly, as shown in FIG. Figure 3 , Figure 4As shown, the hole wall of the acid adding hole 210 in this embodiment is provided with a first limiting groove 220, and the outer periphery of a connecting sleeve 41 is provided with a first limiting protrusion 411, and the first limiting protrusion 411 is limitedly matched with the first limiting groove 220 to limit the rotation of a connecting sleeve 41. When the acid adding pipe 1 is extended into the acid adding hole 210, the first limiting protrusion 411 extends into the first limiting groove 220, thereby circumferentially limiting a connecting sleeve 41 to prevent a connecting sleeve 41 from rotating.

[0054] In an optional embodiment, there are multiple first limiting protrusions 411, and the multiple first limiting protrusions 411 are arranged at circumferential intervals around a connecting sleeve 41. Correspondingly, the acid adding hole 210 is provided with multiple first limiting grooves 220 at circumferential intervals, and the multiple first limiting protrusions 411 are matched with the multiple first limiting grooves 220 in a one-to-one limiting manner.

[0055] In this embodiment, the acid adding hole 210 is a circular hole. In order to increase the contact area between the abutment 3 and the acid adding hole 210, the side of the abutment 3 facing the hole wall of the acid adding hole 210 is arc-shaped, so that the side of the abutment 3 facing the hole wall of the acid adding hole 210 is in contact with the hole wall of the acid adding hole 210.

[0056] Specifically, an anti-skid layer is provided on one side of the abutment member 3 facing the hole wall of the acid addition hole 210. The anti-skid layer can increase the friction between the abutment member 3 and the side wall of the acid addition hole 210 when the abutment member 3 abuts against the side wall, thereby avoiding relative sliding, further ensuring the stability of the abutment member 3 supporting the acid addition pipe 1, and preventing the acid addition pipe 1 from shaking or vibrating.

[0057] In one embodiment, a rubber is provided on the side of the abutment member 3 facing the hole wall of the acid addition hole 210 to form an anti-slip layer; in another optional embodiment, an anti-slip coating is applied on the side of the abutment member 3 facing the hole wall of the acid addition hole 210 to form an anti-slip layer. It should be noted that the specific arrangement of the anti-slip layer is not limited.

[0058] Specifically, Figure 2 , Figure 4 and Figure 5As shown, the acid adding device 100 also includes a connecting component 2, which is sleeved on the outer periphery of the acid adding tube 1, and the connecting component 2 can be sealed and connected with the end face of the acid adding hole 210. When the autoclave body 200 is working, the environment inside is high temperature and high pressure, and the connecting component 2 is sealed and connected with the end face of the acid adding hole 210 to ensure the sealing of the autoclave body 200. During use, the acid adding tube 1 is inserted into the acid adding hole 210, and the connecting component 2 is abutted against the end face of the acid adding hole 210, and then the acid adding tube 1 is rotated so that the abutment 3 abuts against the hole wall of the acid adding hole 210, and then the connecting component 2 is sealed and connected with the end face of the acid adding hole 210; when disassembly and maintenance are required, the connection between the connecting component 2 and the end face of the acid adding hole 210 is released, so that the acid adding tube 1 can be rotated, and then the acid adding tube 1 is rotated so that the abutment 3 is away from the hole wall of the acid adding hole 210, and finally the acid adding device 100 is taken out.

[0059] Specifically, Figure 2 , Figure 4 and Figure 5 As shown, the acid adding device 100 includes a first flange 22 and a plurality of locking members, and the locking members pass through the first flange 22 and the autoclave body 200 to connect the first flange 22 to the autoclave body 200. In this embodiment, the locking members are bolts.

[0060] Furthermore, if Figure 2 , Figure 4 and Figure 5 As shown, the acid adding device 100 further includes a first sealing ring 21, which is located below the first flange 22 and is used to seal with the end surface of the acid adding hole 210. When the first flange 22 and the autoclave body 200 are fixedly connected, the first sealing ring 21 is sandwiched between the first flange 22 and the end surface of the acid adding hole 210 to ensure the sealing performance of the autoclave body 200.

[0061] In this embodiment, the first sealing ring 21 is welded to the outer circumference of the acid adding pipe 1 .

[0062] Specifically, Figure 7 As shown, the outer periphery of the acid adding tube 1 is provided with a second limiting protrusion 11, and the first flange 22 is provided with a second limiting groove 221. The second limiting groove 221 and the second limiting protrusion 11 are limited and matched, so that the first flange 22 and the acid adding tube 1 can rotate synchronously. Through the limited cooperation of the second limiting groove 221 and the second limiting protrusion 11, the acid adding tube 1 can be driven to rotate by rotating the first flange 22. It can be understood that the diameter of the first flange 22 is much larger than the diameter of the acid adding tube 1, and rotating the first flange 22 is more labor-saving and convenient than directly rotating the acid adding tube 1.

[0063] In this embodiment, if Figure 7As shown, since the first flange 22 is connected to the autoclave body 200 through a plurality of locking members, and the locking members are bolts, that is, a plurality of first through holes are arranged at intervals in the circumferential direction of the first flange 22, and a plurality of second through holes are arranged at intervals in the circumferential direction of the end surface of the acid addition hole 210 of the autoclave body 200, the locking members pass through the corresponding plurality of first through holes and the plurality of second through holes to fix the first flange 22 to the autoclave body 200. In order to ensure that when the abutting member 3 abuts against the hole wall of the acid adding hole 210, the first through holes of the first flange 22 can correspond one to one with the second through holes of the autoclave body 200, the second limiting groove 221 is arranged in an arc shape, and the angle between the two ends of the second limiting groove 221 and the connecting line of its center is greater than the angle between the connecting lines of the centers of two adjacent first through holes on the first flange 22, and the arc length of the second limiting protrusion 11 is much smaller than the arc length of the second limiting groove 221, so that the first flange 22 can be adjusted in a small range to ensure that when the abutting member 3 abuts against the hole wall of the acid adding hole 210, the first through holes of the first flange 22 correspond one to one with the second through holes of the autoclave body 200.

[0064] Specifically, Figure 4 , Figure 5 As shown, the upper end of the acid adding pipe 1 is provided with a second sealing ring 6 and a second flange 5, the second flange 5 is located below the second sealing ring 6, the second flange 5 can be connected to the acid liquid pipeline, and the second sealing ring 6 is clamped between the second flange 5 and the acid liquid pipeline to ensure that the acid adding pipe 1 is sealed and connected to the acid liquid pipeline.

[0065] This embodiment further provides an autoclave, which includes the autoclave body 200 and the acid adding device 100 described above.

[0066] In the present embodiment, the autoclave body 200 is a horizontal autoclave structure, and the acid adding hole 210 is located on the upper side wall of the autoclave body 200, that is, an acid inlet pipe is inserted into the upper side wall of the autoclave body 200, the upper end of the acid inlet pipe extends out of the autoclave body 200, and the lower end of the acid inlet pipe extends into the autoclave body 200, the channel in the acid inlet pipe constitutes the acid adding hole 210, and the acid adding device 100 is connected and fixed to the acid inlet pipe.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An acid adding device (100), applied to an autoclave body (200), wherein the autoclave body (200) is provided with an acid adding hole (210), characterized in that: The acid adding device (100) comprises: An acid addition pipe (1) extends into the autoclave body (200) through the acid addition hole (210), and the acid addition pipe (1) is capable of rotating around its own axis; A transmission mechanism (4) and a plurality of abutment members (3), wherein the transmission mechanism (4) is transmission-connected to the acid-adding tube (1), and the plurality of abutment members (3) are arranged at the output end of the transmission mechanism (4) around the circumference of the acid-adding tube (1). The rotation of the acid-adding tube (1) can drive the output end of the transmission mechanism (4) to move along the radial direction of the acid-adding tube (1), so that the abutment members (3) move closer to or farther from the hole wall of the acid-adding hole (210).

2. The acid adding device (100) according to claim 1, characterized in that: The transmission mechanism (4) comprises: Two connecting sleeves (41) are arranged at intervals on the outer circumference of the acid adding pipe (1), at least one of the connecting sleeves (41) is threadedly connected to the acid adding pipe (1), and the acid adding pipe (1) rotates to drive the two connecting sleeves (41) to move closer to or farther from each other; A plurality of scissor-type fork assemblies, each of which comprises two rotatably connected connecting rods (42), one end of each of the two connecting rods (42) being rotatably connected to each of the two connecting sleeves (41), the other end of each of the connecting rods (42) being slidably connected to the abutment (3), and the other end of each of the other connecting rods (42) being rotatably connected to the abutment (3).

3. The acid adding device (100) according to claim 2, characterized in that: One of the connecting sleeves (41) is rotatably connected to the acid adding pipe (1), and the other of the connecting sleeves (41) is threadedly connected to the acid adding pipe (1). The hole wall of the acid adding hole (210) is provided with a first limiting groove (220). The outer periphery of one of the connecting sleeves (41) is provided with a first limiting protrusion (411), and the first limiting protrusion (411) is limitedly matched with the first limiting groove (220) to limit the rotation of one of the connecting sleeves (41).

4. The acid adding device (100) according to claim 1, characterized in that: The side of the abutment member (3) facing the hole wall of the acid addition hole (210) is arc-shaped.

5. The acid adding device (100) according to claim 1, characterized in that: A non-slip layer is provided on one side of the abutment member (3) facing the hole wall of the acid addition hole (210).

6. The acid adding device (100) according to any one of claims 1 to 5, characterized in that: The acid adding device (100) further comprises a connecting component (2), wherein the connecting component (2) is sleeved on the outer circumference of the acid adding pipe (1), and the connecting component (2) can be sealingly connected to the end face of the acid adding hole (210).

7. The acid adding device (100) according to claim 6, characterized in that: The acid adding device (100) comprises a first flange (22) and a plurality of locking members, wherein the locking members pass through the first flange (22) and the autoclave body (200) to connect the first flange (22) to the autoclave body (200).

8. The acid adding device (100) according to claim 7, characterized in that: The acid adding device (100) further comprises a first sealing ring (21), wherein the first sealing ring (21) is located below the first flange (22), and the first sealing ring (21) is used to seal with the end surface of the acid adding hole (210).

9. The acid adding device (100) according to claim 7, characterized in that: The outer periphery of the acid adding pipe (1) is provided with a second limiting protrusion (11), and the first flange (22) is provided with a second limiting groove (221), and the second limiting groove (221) and the second limiting protrusion (11) are limitedly matched so that the first flange (22) and the acid adding pipe (1) can rotate synchronously.

10. An autoclave, characterized in that: The autoclave comprises an autoclave body (200) and an acid adding device (100) according to any one of claims 1 to 9.

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