Rapid dilution device convenient for concentrated sulfuric acid processing

Abstract

The invention relates to a rapid dilution device convenient for concentrated sulfuric acid processing. The rapid dilution device comprises a dilution barrel, a first transmission assembly, driving equipment and a stirring paddle, the driving equipment is rotating equipment and drives the stirring paddle to ascend or descend while rotating through the first transmission assembly; the first transmission assembly comprises a lead screw, a sliding block, a fixing plate and a guide rod. The lead screw is fixedly arranged in the dilution barrel, and the lead screw is sleeved with the threaded connection sliding block; the fixed plate is fixedly arranged at the rotating end of the driving equipment; one end of the guide rod is fixed on the fixed plate, and the other end of the guide rod penetrates through the sliding block and is in sliding fit with the sliding block; the stirring paddle is mounted on the sliding block. The first transmission assembly drives the stirring paddle to rotate and move up and down in a reciprocating mode at the same time, the layering phenomenon of liquid in the vertical direction is broken, bottom concentrated sulfuric acid and upper-layer water can be fully blended, uneven mixing of the bottom concentrated sulfuric acid due to long-time standing is prevented, the mixing degree of liquid at different heights is greatly improved, and the mixing efficiency is improved. The overall concentration uniformity is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concentrated sulfuric acid processing, in particular to a rapid dilution device for facilitating concentrated sulfuric acid processing. BACKGROUND

[0002] Concentrated sulfuric acid has strong corrosive and high oxidizing properties, and is widely used in many industrial fields such as chemical industry, metallurgy, pharmaceuticals, electronics, etc. However, in actual application, many times it is necessary to dilute concentrated sulfuric acid into sulfuric acid solution of different concentrations to meet various process requirements. For example, in chemical production, it is often necessary to use specific concentration of dilute sulfuric acid for acid-base neutralization reaction, as a catalyst or to participate in organic synthesis reaction, etc. so that the reaction can proceed smoothly and achieve the desired effect. The existing rapid dilution device, in the process of use, the concentrated sulfuric acid has large density and is easy to deposit at the bottom, while the water is in the upper layer, and the stirring paddle is not convenient to rise and fall with the stirring, which can cause insufficient mixing of concentrated sulfuric acid and water, resulting in large deviation of the final product concentration. For example, Chinese patent CN119838474A discloses an efficient concentrated sulfuric acid automatic dilution device, which can output concentrated sulfuric acid from multiple points below the water surface in the dilution tank, effectively avoiding the escape of concentrated sulfuric acid caused by water vapor generated by the high temperature when concentrated sulfuric acid and water are mixed on the water surface, thereby improving the safety during the dilution process of concentrated sulfuric acid and effectively saving concentrated sulfuric acid resources. The patent does not involve the problem of insufficient mixing of concentrated sulfuric acid and water. The above problems need to be solved. SUMMARY

[0003] The present application discloses a kind of, to solve the technical problems existing in prior art.

[0004] The present application adopts the following technical scheme:

[0005] The present application provides a rapid dilution device for facilitating concentrated sulfuric acid processing, which comprises a dilution barrel, a first transmission assembly, a driving device and a stirring paddle. The driving device is a rotating device, and the stirring paddle is driven by the first transmission assembly to rise or fall while rotating. The first transmission assembly includes a lead screw, a sliding block, a fixed plate and a guide rod. The lead screw is fixedly arranged in the dilution barrel, and the lead screw sleeve is connected with the sliding block by screwing. The fixed plate is fixedly arranged on the rotating end of the driving device. The guide rod is parallel to the lead screw, one end of which is fixedly arranged on the fixed plate, and the other end passes through the sliding block and is in sliding cooperation with the sliding block. The stirring paddle is installed on the sliding block.

[0006] In the quick dilution device for concentrated sulfuric acid processing, a second transmission assembly is further included; the stirring shaft of the stirring paddle is rotationally connected to the sliding block, and the stirring shaft has a non-zero angle with the height direction of the dilution barrel; the second transmission assembly is used to drive the stirring paddle to rotate around the axis of the stirring shaft; the second transmission assembly includes a gear and a rack; the gear is sleeved and fixed to the stirring shaft; the rack is arranged parallel to the guide rod, and one end thereof is fixed to the fixed plate and engaged with the gear.

[0007] In the quick dilution device for concentrated sulfuric acid processing, the stirring paddle includes a stirring shaft and a plurality of paddle blades; the plurality of paddle blades are arranged at intervals along the axial direction of the stirring shaft.

[0008] In the quick dilution device for concentrated sulfuric acid processing, the paddle blade includes a plurality of blade leaves; the plurality of blade leaves are arranged at intervals in the circumferential direction of the stirring shaft, one end of each blade leaf is fixed to the stirring shaft, and the other end extends radially along the stirring shaft.

[0009] In the quick dilution device for concentrated sulfuric acid processing, each blade leaf has an S-shaped bending plate structure, and the plate surface is parallel to the axial direction of the stirring shaft.

[0010] In the quick dilution device for concentrated sulfuric acid processing, a fixed-ratio feeding device is further included; the fixed-ratio feeding device is used for fixed-ratio feeding of different raw materials; the fixed-ratio feeding device includes a first feeding hopper, a second feeding hopper, a first feeding roller, a second feeding roller, and a driving assembly; the first feeding hopper and the second feeding hopper are respectively connected to the dilution barrel; the first feeding roller is rotationally arranged in the first feeding hopper; the raw material entering the first feeding hopper is carried into the dilution barrel through the first feeding roller; the roller surface is slidingly and sealingly connected to the first feeding hopper, the roller surface has a first material carrying groove, and the first material carrying groove is used for carrying raw material; the second feeding roller is rotationally arranged in the second feeding hopper; the raw material entering the second feeding hopper is carried into the dilution barrel through the second feeding roller; the roller surface is slidingly and sealingly connected to the second feeding hopper, the roller surface has a second material carrying groove, and the second material carrying groove is used for carrying raw material; and the driving assembly is used to drive the first feeding roller and the second feeding roller to rotate simultaneously.

[0011] In the quick dilution device for concentrated sulfuric acid processing, a plurality of first material carrying grooves and a plurality of second material carrying grooves are included; each first material carrying groove is arranged along the axial direction of the first feeding roller, and a plurality of first material carrying grooves are arranged at intervals in the circumferential direction of the first feeding roller; each second material carrying groove is arranged along the axial direction of the second feeding roller, and a plurality of second material carrying grooves are arranged at intervals in the circumferential direction of the second feeding roller.

[0012] In the quick dilution device for facilitating concentrated sulfuric acid processing, the driving assembly comprises a motor, a belt, a first belt pulley and a second belt pulley; the motor is used for driving the first belt pulley or the second belt pulley to rotate; the belt is arranged around the first belt pulley and the second belt pulley to rotate; the first belt pulley is fixedly connected with the rotating shaft of the first feeding roller; and the second belt pulley is fixedly connected with the rotating shaft of the second feeding roller.

[0013] In the quick dilution device for facilitating concentrated sulfuric acid processing, the fixed plates are arranged in pairs and are arranged in parallel and at intervals on both ends of the guide rods; the guide rods are arranged in parallel and are connected to the fixed plates at both ends.

[0014] In the quick dilution device for facilitating concentrated sulfuric acid processing, a plurality of stirring paddles are arranged; the lead screw is arranged along the axis of the dilution barrel; and the plurality of stirring paddles are distributed in a radial manner, one end of each stirring paddle is connected to the sliding block, and the other end extends along the radial direction of the dilution barrel.

[0015] The technical scheme adopted by the present application can achieve the following beneficial effects:

[0016] The present application mainly provides a quick dilution device for facilitating concentrated sulfuric acid processing, which drives the stirring paddles to rotate and move up and down at the same time, breaks the stratification phenomenon of the liquid in the vertical direction, and enables the bottom concentrated sulfuric acid to fully mix with the upper layer of water, thereby preventing the bottom concentrated sulfuric acid from being mixed unevenly due to long-term static state. Compared with only rotating motion, the mixing degree of the liquid at different heights is greatly improved, and the overall concentration is uniform. In addition, the cooperation of the lead screw, the sliding block and the guide rod can realize the rotation and upward / downward movement of the stirring paddles with only one set of driving equipment, and the structure is simple. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, which constitutes a part of the present application. The schematic embodiments of the present application and the description and explanation thereof do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 Fig. 1 is a structural schematic diagram of one of the quick dilution devices for facilitating concentrated sulfuric acid processing of the present application;

[0019] Figure 2 Fig. 2 is a structural schematic diagram of another quick dilution device for facilitating concentrated sulfuric acid processing of the present application;

[0020] Figure 3 Fig. 3 is a structural schematic diagram of the connection state of the first transmission assembly and the stirring paddle of the present application;

[0021] Figure 4 A partial enlarged structural schematic view at A in the Figure 2 A partial enlarged structural schematic view at A in the

[0022] Figure 5 A partial enlarged structural schematic view at A in the Figure 2 A partial enlarged structural schematic view at A in the

[0023] Figure 6 A partial enlarged structural schematic view at A in the Figure 2 A partial enlarged structural schematic view at A in the

[0024] Figure 7 A partial enlarged structural schematic view at A in the Figure 2 A partial enlarged structural schematic view at A in the

[0025] Figure 8 A structural schematic view of the second feeding hopper and the second feeding roller of the

[0026] Figure 9 A partial enlarged structural schematic view at A in the Figure 1 A partial enlarged structural schematic view at A in the

[0027] Figure 10 A structural schematic view of the first partition plate and the first feeding roller of the

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1. dilution barrel; 11. feeding port; 12. discharging port; 2. first transmission assembly; 21. screw rod; 22. sliding block; 23. fixed plate; 24. guide rod; 3. driving device; 4. stirring paddle; 41. stirring shaft; 42. paddle blade; 421. blade; 5. second transmission assembly; 51. gear; 52. rack; 6. constant proportion feeding device; 61. first feeding hopper; 62. second feeding hopper; 63. first feeding roller; 631. first material groove; 64. second feeding roller; 641. second material groove; 65. driving assembly; 651. motor; 652. belt; 653. first belt pulley; 654. second belt pulley; 66. first partition plate; 661. first discharging port; 67. second partition plate; 7. first support; 8. rotating shaft. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. In the description of the present application, it should be noted that the term "or" is generally used in the meaning of including "and / or", unless the content is explicitly indicated otherwise.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or magnetic connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside 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. In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three or more, etc., unless otherwise explicitly specified and limited.

[0032] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] To solve the problems in the prior art, the embodiments of the present application provide a rapid dilution device for processing concentrated sulfuric acid.

[0034] As shown in Figure 1 and Figure 2 , a rapid dilution device for processing concentrated sulfuric acid comprises a dilution barrel 1, a first transmission assembly 2, a driving device 3 and a stirring paddle 4; the driving device 3 is a rotating device, and drives the stirring paddle 4 to rise or fall while rotating through the first transmission assembly 2; the first transmission assembly 2 comprises a lead screw 21, a sliding block 22, a fixed plate 23 and a guide rod 24; the lead screw 21 is fixedly arranged in the dilution barrel 1, and the lead screw 21 is sleeved with the sliding block 22 through screw connection; the fixed plate 23 is fixedly arranged at the rotating end of the driving device 3; the guide rod 24 is arranged parallel to the lead screw 21, one end of the guide rod 24 is fixedly arranged on the fixed plate 23, and the other end of the guide rod 24 penetrates through the sliding block 22 and is in sliding fit with the sliding block 22; the stirring paddle 4 is installed on the sliding block 22.

[0035] The rapid dilution device for processing concentrated sulfuric acid of the present application drives the stirring paddle to rotate and reciprocate up and down at the same time through the first transmission assembly, breaks the stratification phenomenon of the liquid in the vertical direction, and the up-and-down shuttle of the stirring paddle can make the bottom concentrated sulfuric acid fully intermingle with the upper water, prevent the bottom concentrated sulfuric acid from being mixed unevenly due to long-term static state, greatly improve the mixing degree of the liquid at different heights compared with only rotating motion, and ensure the uniformity of the overall concentration; and the cooperation of the lead screw, the sliding block and the guide rod can realize the rotation and up-and-down movement of the stirring paddle only by using one set of driving device, and the structure is simple.

[0036] In some preferred embodiments, as Figure 1As shown, the driving device 3 is a motor, which is installed on the dilution barrel 1 through the first support 7, and is connected to the fixed plate 23 through the rotating shaft 8.

[0037] In some preferred embodiments, as shown in Figure 1 As shown, the dilution barrel 1 has a feeding port 11 and a discharging port 12; as shown, the feeding port 11 is arranged at the top of the dilution barrel 1, and the discharging port 12 is arranged at the bottom of the dilution barrel 1.

[0038] In some preferred embodiments, as shown in Figures 3-5 As shown, the dilution barrel 1 has a feeding port 11 and a discharging port 12; as shown, the feeding port 11 is arranged at the top of the dilution barrel 1, and the discharging port 12 is arranged at the bottom of the dilution barrel 1.

[0039] Preferably, the stirring shaft 41 is at an angle of 90° with the height direction of the dilution barrel 1.

[0040] In some preferred embodiments, as shown in Figure 3 and Figure 5 As shown, the stirring paddle 4 comprises a stirring shaft 41 and a plurality of paddle blades 42; the plurality of paddle blades 42 are arranged at intervals along the axial direction of the stirring shaft 41; based on the plurality of spaced paddle blades 42, the resistance during the rotation of the stirring paddle 4 can be reduced, and the mixing effect of the material can be improved, and the uniformity of the concentration can be improved. Further preferably, the paddle blades 42 are arranged along the length of the stirring shaft 41.

[0041] Preferably, the paddle blade 42 comprises a plurality of blade vanes 421; the plurality of blade vanes 421 are arranged at intervals in the circumferential direction of the stirring shaft 41, one end is fixed to the stirring shaft 41, and the other end extends radially along the stirring shaft 41; based on the plurality of blade vanes 421, the stirring efficiency can be improved.

[0042] Further preferably, each blade 421 is a plate structure bent in an S shape, i.e. the end of the blade not connected is inclined backward in the rotation direction, and the plate surface is parallel to the axial direction of the stirring shaft 41; based on this, the S-shaped blade pushes the material upward or downward when rotating, and at the same time generates a horizontal thrust due to the bending angle, i.e. simultaneously generates vertical and horizontal actions on the material, so that the material forms a complex convection circulation, accelerates the mixing speed of materials of different densities and viscosities, and reduces the stratification phenomenon.

[0043] In some preferred embodiments, as shown in Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Figure 9 , further comprising a proportional feeding device 6; the proportional feeding device 6 is used for proportional feeding of different raw materials, and the proportional feeding device 6 comprises a first feeding hopper 61, a second feeding hopper 62, a first feeding roller 63, a second feeding roller 64, and a driving assembly 65; the first feeding hopper 61 and the second feeding hopper 62 are respectively communicated with the dilution barrel 1; the first feeding roller 63 is rotationally arranged in the first feeding hopper 61, the raw material entering the first feeding hopper 61 is carried into the dilution barrel 1 through the first feeding roller 63, and the roller surface is in sliding sealing connection with the first feeding hopper 61, and the roller surface has a first material carrying groove 631 for carrying the raw material; the second feeding roller 64 is rotationally arranged in the second feeding hopper 62, the raw material entering the second feeding hopper 62 is carried into the dilution barrel 1 through the second feeding roller 64, and the roller surface is in sliding sealing connection with the second feeding hopper 62, and the roller surface has a second material carrying groove 641 for carrying the raw material; the driving assembly 65 is used for driving the first feeding roller 63 and the second feeding roller 64 to rotate simultaneously. Based on the proportional feeding device 6, the proportional feeding is realized, and the uniform feeding helps to fully and uniformly mix different raw materials during the dilution process, avoids the phenomenon of uneven mixing caused by asynchronous or proportionally imbalanced feeding, and improves the dilution effect and product quality. Specifically, when the rotation speeds of the first feeding roller 63 and the second feeding roller 64 are the same, the feeding proportion can be adjusted by adjusting the volumes of the first material carrying groove 631 and the second material carrying groove 641, i.e. the amount of material carried into the dilution barrel 1 by the first feeding roller 63 and the second feeding roller 64 per revolution (taking the first feeding roller 63 and the second feeding roller 64 as an example); when the rotation speeds of the first feeding roller 63 and the second feeding roller 64 are different, the feeding proportion needs to be calculated according to the volumes of the first material carrying groove 631 and the second material carrying groove 641 and the rotation speed proportion of the first feeding roller 63 and the second feeding roller 64.

[0044] Preferably, a plurality of first material grooves 631 and a plurality of second material grooves 641 are included; each first material groove 631 is arranged axially along the first feeding roller 63, and the plurality of first material grooves 631 are arranged circumferentially along the first feeding roller 63 at intervals; each second material groove 641 is arranged axially along the second feeding roller 64, and the plurality of second material grooves 641 are arranged circumferentially along the second feeding roller 64 at intervals; based on this, the feeding speed can be improved.

[0045] Preferably, as shown in Figure 10 the first feeding hopper 61 is provided with a first partition plate 66, the first partition plate 66 has a first discharge port 661 corresponding to the first material groove 631 of the first feeding roller 63, when the first material groove 631 is rotated to be vertically upward, the material enters the first material groove 631 from the first discharge port 661, that is, the roller surface of the first feeding roller 63 is sealed with the cylinder of the first partition plate 66; and / or, the second feeding hopper 62 is provided with a second partition plate 67, the second partition plate 67 has a second discharge port (not shown, same as the first discharge port 661) corresponding to the second material groove 641 of the second feeding roller 64, when the second material groove 641 is rotated to be vertically upward, the material enters the second material groove 641 from the second discharge port, that is, the roller surface of the second feeding roller 64 is sealed with the cylinder of the second partition plate 67, such as elastic abutting sealing.

[0046] In some preferred embodiments, as shown in Figure 1 the driving assembly 65 includes a motor 651, a belt 652, a first belt pulley 653, and a second belt pulley 654; the motor 651 is used to drive the first belt pulley 653 or the second belt pulley 654 to rotate; the belt 652 is wound around the first belt pulley 653 and the second belt pulley 654 to rotate; the first belt pulley 653 is fixedly connected to the rotating shaft of the first feeding roller 63; and the second belt pulley 654 is fixedly connected to the rotating shaft of the second feeding roller 64.

[0047] In some preferred embodiments, as shown in Figure 2 the fixed plates 23 are arranged in pairs and parallel at intervals at both ends of the guide rods 24; the guide rods 24 are arranged in plurality and parallel, and both ends are connected to the fixed plates 23; based on this, the stability of the sliding block 22 when moving can be improved.

[0048] In some preferred embodiments, as shown in Figure 2 and Figure 3 a plurality of stirring paddles 4 are included; the lead screw 21 is arranged axially along the dilution barrel 1; the plurality of stirring paddles 4 are distributed radially, each stirring paddle 4 is connected to the sliding block 22 at one end and extends radially along the dilution barrel 1 at the other end, such as perpendicular to the lead screw 21; in this way, the stirring efficiency can be improved.

[0049] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection of the present application.

Claims

1. A rapid dilution device for concentrated sulfuric acid processing, characterized in that: It includes a dilution barrel, a first transmission assembly, a driving device and a stirring paddle; The driving device is a rotating device, and drives the stirring paddle to rise or fall while rotating through the first transmission component; The first transmission assembly includes a screw rod, a slider, a fixing plate and a guide rod; The screw rod is fixedly arranged in the dilution barrel, and the screw rod is sleeved and screwed to the slider; The fixing plate is fixedly mounted on the rotating end of the driving device; The guide rod is arranged parallel to the screw rod, and one end of the guide rod is fixed to the fixed plate, and the other end passes through the slider and is slidably engaged with the slider; The stirring paddle is mounted on the slider.

2. The rapid dilution device for concentrated sulfuric acid processing according to claim 1, characterized in that: It also includes a second transmission assembly; the stirring shaft of the stirring paddle is rotatably connected to the slider, and the angle between the axial direction of the stirring shaft and the height direction of the dilution barrel is not zero; The second transmission assembly is used to drive the stirring paddle to rotate around the axis of the stirring shaft; The second transmission assembly includes a gear and a rack; The gear is sleeved on and fixed to the stirring shaft; The rack is arranged parallel to the guide rod, and one end of the rack is fixed to the fixing plate and meshed with the gear.

3. The rapid dilution device for concentrated sulfuric acid processing according to claim 1 or 2, characterized in that: The stirring paddle includes a stirring shaft and a plurality of blades; The plurality of blades are arranged at intervals along the axial direction of the stirring shaft.

4. The rapid dilution device for concentrated sulfuric acid processing according to claim 3, characterized in that: The paddle comprises a plurality of blades; The plurality of blades are circumferentially spaced around the stirring shaft, one end of the blades is fixed to the stirring shaft, and the other end of the blades extends radially along the stirring shaft.

5. The rapid dilution device for concentrated sulfuric acid processing according to claim 4, characterized in that: Each of the blades is a plate-like structure bent in an S shape, and the plate surface is parallel to the axial direction of the stirring shaft.

6. The rapid dilution device for concentrated sulfuric acid processing according to claim 1, characterized in that: It also includes proportional feeding equipment; The fixed-ratio feeding device is used for feeding different raw materials in a fixed ratio, and the fixed-ratio feeding device includes a first feeding hopper, a second feeding hopper, a first feeding roller, a second feeding roller and a driving assembly; The first feed hopper and the second feed hopper are respectively connected to the dilution barrel; The first feed roller is rotatably disposed in the first feed hopper. The raw materials entering from the first feed hopper are carried into the dilution barrel via the first feed roller. The roller surface is slidably and sealedly connected to the first feed hopper. The roller surface has a first material trough, which is used to carry the raw materials. The second feed roller is rotatably disposed in the second feed hopper, and the raw materials entering from the second feed hopper are carried into the dilution barrel via the second feed roller, and the roller surface is slidingly and sealingly connected to the second feed hopper, and the roller surface has a second material trough, and the second material trough is used to carry the raw materials; The driving assembly is used to drive the first feed roller and the second feed roller to rotate simultaneously.

7. The rapid dilution device for concentrated sulfuric acid processing according to claim 6, characterized in that: comprising a plurality of said first belt troughs and a plurality of said second belt troughs; Each of the first belt material grooves is arranged along the axial direction of the first feeding roller, and a plurality of the first belt material grooves are arranged at intervals along the circumference of the first feeding roller; Each of the second belt material grooves is arranged along the axial direction of the second feed roller, and a plurality of the second belt material grooves are arranged at intervals along the circumferential direction of the second feed roller.

8. The rapid dilution device for concentrated sulfuric acid processing according to claim 6, characterized in that: The drive assembly includes a motor, a belt, a first pulley and a second pulley; The motor is used to drive the first pulley or the second pulley to rotate; The belt is wound around the first pulley and the second pulley for rotation; The first pulley is fixedly connected to the rotating shaft of the first feed roller; The second pulley is fixedly connected to the rotating shaft of the second feed roller.

9. The rapid dilution device for concentrated sulfuric acid processing according to claim 1, characterized in that: The fixing plates are arranged in pairs and are arranged in parallel and at intervals at the two ends of the guide rod; there are multiple guide rods, which are arranged in parallel and have both ends connected to the fixing plates.

10. The rapid dilution device for concentrated sulfuric acid processing according to claim 1, characterized in that: comprising a plurality of stirring paddles; The screw rod is arranged along the axial direction of the dilution barrel; The plurality of stirring paddles are distributed radially, one end of each stirring paddle is connected to the sliding block, and the other end extends radially along the dilution barrel.

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