Waste acid treatment device for isooctane production

Abstract

The invention provides a waste acid treatment device for isooctane production, which comprises a vertically arranged tank body and at least two support plates vertically arranged in the tank body at intervals, and a resin adsorption layer is arranged above each support plate; the rotating shaft and the tank body are coaxially arranged, and the rotating shaft can rotate around the axis; the two water-permeable pressing plates correspond to the supporting plates and are vertically arranged above the resin adsorption layer in a guiding manner, and a plurality of material passing holes are formed in the lower surfaces of the water-permeable pressing plates; one end of the material pipe is communicated with the plurality of material passing holes, and the other end extends out of the tank body; by means of the arrangement mode, resin can be extracted and filled at different positions above the resin adsorption layer through the rotating permeable pressing plate and the material passing holes, it is ensured that the resin can be completely removed and evenly filled, and the resin replacement efficiency and effect are improved.

Description

Technical Field

[0001] This invention relates to the field of waste acid treatment technology, and in particular to a waste acid treatment device for isooctane production. Background Technology

[0002] In the production process of isooctane, in order to improve resource utilization and reduce pollution emissions, the current treatment method for waste acid is mostly to treat it and then reuse it.

[0003] For example, Chinese utility model patent application number 2023235213489 discloses a waste acid treatment device in industrial isooctane production. It uses two-stage resin adsorption layers and two-stage molecular sieve adsorption layers arranged at intervals in a vertically arranged shell. Waste acid enters from the top of the shell and is treated by adsorbing the acid layer by layer through the three resin adsorption layers. The resin adsorption layers adsorb and remove organic matter, pigments and water in the waste acid, thereby increasing the acid concentration.

[0004] However, the above-mentioned device still has at least the following problems: the resin adsorption layer is set above the support plate by granular resin particles. When replacing the resin adsorption layer, the resin is mainly extracted by setting a resin outlet pipe on the side wall of the shell, and then a certain amount of resin particles are pumped into the shell through the resin outlet pipe. Although the above method can achieve the purpose of replacing the resin, the resin adsorption effect on the middle area of ​​the shell is limited because the resin outlet pipe is set on the side wall. It cannot achieve the purpose of completely and effectively removing the resin. Moreover, when refilling the resin, it cannot be guaranteed that the resin is evenly filled above the support plate. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by providing a waste acid treatment device for isooctane production.

[0006] To achieve the above objectives, the technical solution of the present invention is a waste acid treatment device for isooctane production, comprising: a vertically arranged tank and at least two support plates vertically spaced apart within the tank, each support plate having a resin adsorption layer disposed above it; and further comprising: The rotating shaft is coaxially arranged with the tank body and can rotate around the axis. Two permeable pressure plates are set corresponding to the support plate. They are vertically guided above the resin adsorption layer and have multiple material passage holes on their lower surface. The feed pipe has one end connected to multiple feed holes and the other end extending out of the tank. The clutch assembly is located between the rotating shaft and the permeable pressure plate.

[0007] Furthermore, the clutch assembly includes: A support shaft is coaxially arranged with and connected to the rotating shaft, and a guide hole is coaxially provided at one end. The drive rod is guided within the guide hole and moves axially. Two conical sections are arranged opposite each other in the middle area. A rotating sleeve is rotatably mounted outside the support shaft, and a radial hole is provided on its side wall. A linkage pin is guided inside the radial hole. The permeable pressure plate is sleeved outside the rotating sleeve and is in non-rotational engagement with the rotating sleeve.

[0008] Furthermore, the outer circumferential surface of the rotary sleeve is provided with splines, and the permeable pressure plate is coaxially provided with a spline sleeve.

[0009] Furthermore, around the axis, a plurality of connecting pipes are evenly spaced on the upper surface of the permeable pressure plate; the connecting pipes are arranged radially outward from the axis of the permeable pressure plate, and the material passage holes are connected to the connecting pipes and are spaced apart along the extension direction of the connecting pipes.

[0010] Furthermore, the upper end of the rotary sleeve is provided with a stepped portion, and a rotary joint is rotatably provided on the outside of the stepped portion. The lower surface of the stepped portion is provided with a first channel corresponding to the connecting pipe. One end of the first channel is connected to the connecting pipe through a flexible pipe, and the other end is connected to the rotary joint.

[0011] Furthermore, the material tube is a rigid tube, and the rotary joint is axially limited to the stepped portion.

[0012] Furthermore, the outer peripheral surface of the stepped portion is provided with an annular groove II, and the side wall of the rotary joint is provided with at least one countersunk through hole. The countersunk through hole is detachably provided with a limiting component, and a ball is provided between the limiting component and the annular groove II.

[0013] Furthermore, the inner circumferential surface of the rotary joint is provided with an annular groove for connecting to the material pipe, the outer circumferential surface of the stepped portion is provided with a connecting hole connecting the upper end of the guide hole and the annular groove, the upper end of the drive rod is integrally provided with a piston, and the lower end of the guide hole is provided with a pressure relief hole.

[0014] Furthermore, springs are provided at both ends of the drive rod.

[0015] Furthermore, around the axis of the tank, the support plate is provided with multiple leakage points at even intervals.

[0016] The waste acid treatment device for isooctane production disclosed in this invention has the following advantages compared with the prior art: it can extract and fill resin at different positions above the resin adsorption layer by rotating the permeable pressure plate and the material passage hole, which solves the problem of limited resin treatment effect of the side wall discharge pipe in the background art, ensuring that the resin can be completely removed and uniformly filled, and improving the efficiency and effect of resin replacement. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of a waste acid treatment device for isooctane production according to the present invention.

[0018] Figure 2 This is a side view of a waste acid treatment device for isooctane production according to the present invention.

[0019] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the present invention at point AA.

[0020] Figure 4 This is a schematic diagram of the internal structure of a waste acid treatment device for isooctane production according to the present invention, when the tank is concealed. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the internal structure of a waste acid treatment device for isooctane production according to the present invention, when the tank is concealed. Figure 2 .

[0022] Figure 6 This is a schematic diagram of the cooperative structure of the support plate, pressure plate and transmission assembly in this invention.

[0023] Figure 7 This is a schematic diagram of the support plate in this invention.

[0024] Figure 8 This is a bottom view of the pressure plate structure in this invention.

[0025] Figure 9 for Figure 8 The diagram shows a partially enlarged structural schematic at point B in this invention.

[0026] Figure 10 This is a top view of the pressure plate structure in this invention.

[0027] Figure 11 This is a schematic diagram of the mating structure of the rotary joint, rotary sleeve, and support shaft in this invention. Figure 1 .

[0028] Figure 12 This is a schematic diagram of the mating structure of the rotary joint, rotary sleeve, and support shaft in this invention. Figure 2 .

[0029] Figure 13 This is a top view of the rotary joint, rotary sleeve, and support shaft in this invention.

[0030] Figure 14 for Figure 13 The diagram shows a cross-sectional view of the rotary joint, rotary sleeve, and support shaft at point CC in this invention.

[0031] Figure 15 for Figure 14The diagram shows a partially enlarged structural schematic of the present invention at point C-1.

[0032] Figure 16 This is a bottom view of the rotary joint, rotary sleeve, and support shaft in this invention.

[0033] Figure 17 for Figure 16 The diagram shows a cross-sectional view of the rotary joint, rotary sleeve, and support shaft at point DD in this invention.

[0034] Figure 18 This is a schematic diagram of the rotating sleeve structure in this invention.

[0035] Figure 19 This is a cross-sectional view of the rotating sleeve in this invention.

[0036] In the diagram: 1. Tank body; 10. Inlet; 11. Outlet; 13. Support plate; 130. Leakage section; 131. Connecting sleeve; 14. Resin adsorption layer; 15. Water-permeable pressure plate; 150. Connecting pipe; 1500. Connection port one; 1501. Material passage hole; 151. Spline sleeve; 1510. Keyway; 152. Toothed plate; 153. Through hole; 310. Material pipe; 3. Rotary joint; 30. Countersunk through hole; 301. Annular groove one; 302. Limiting component; 303. Ball bearing; 31. Flexible tube; 32. Rotary sleeve 32a. Stepped section; 320. First channel; 321. Spline; 322. Sector groove; 323. Second annular groove; 324. First connecting hole; 345. Third annular groove; 34. Second connecting port; 2. Drive motor; 21. Rotating shaft; 22. Intermediate shaft; 23. Support shaft; 230. Threaded hole; 231. Guide hole; 232. Pressure relief hole; 233. Screw; 234. Radial hole; 235. Second connecting hole; 25. Spring; 24. Drive rod; 240. Piston; 243. Tapered section; 26. Linkage pin. Detailed Implementation

[0037] The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0038] Please refer to Figure 1-6 The technical solution of the present invention is a waste acid treatment device for isooctane production, comprising: a vertically arranged tank 1 and at least two support plates 13 vertically spaced within the tank 1, wherein a resin adsorption layer 14 is provided above each support plate 13; and further comprising: The rotating shaft 21 is coaxially arranged with the tank body 1 and can rotate around the axis. Two permeable pressure plates 15 are provided corresponding to the support plate 13. They are vertically guided above the resin adsorption layer 14 and have multiple material passage holes 1501 on their lower surface. The material pipe 310 has one end connected to multiple material passage holes 1501, and the other end extends out of the tank body 1; The clutch assembly is located between the rotating shaft 21 and the permeable pressure plate 15.

[0039] Specifically, as one embodiment, the waste acid treatment device for isooctane production disclosed in this application has the following structure: it includes a vertically arranged tank 1, a detachable cover on the top of the tank 1, a rotating shaft 21 coaxially mounted on the cover, a drive motor 2 driven by the rotating shaft 21, and support plates 13 spaced from top to bottom inside the tank 1. (See reference...) Figure 7 A connecting sleeve 131 is coaxially arranged in the middle area of ​​the support plate 13, through which the support shaft 23 passes and rotates with the support shaft 23. The support plate 13 supports a vertical filter layer, which is composed of resin particles. A permeable pressure plate 15 is vertically guided above the resin filter layer. The lower surface of the permeable pressure plate 15 is provided with a material passage hole 1501, which is connected to the material pipe 310. A clutch assembly is provided between the permeable pressure plate 15 and the rotating shaft 21. The clutch assembly has a disengagement state and a transmission state. The permeable pressure plate 15 can press down on the resin adsorption layer 14 under its own gravity, so that the granular resin forms a layered structure. The top of the tank body 1 is provided with an inlet 10. During operation, waste acid flows into the inlet 10. After passing through the permeable holes 153 on the permeable pressure plate 15 and the resin adsorption layer 14, the waste acid flows down through the support plate 13 and is filtered again by the resin filter layer below. In the initial state, the rotating shaft 21 does not rotate, and the separation assembly is in the disengagement state. After a period of use, the upper resin filter layer reaches the end of its service life and needs to be replaced. When this is needed, the material pipe 310 corresponding to the upper permeable pressure plate 15 is connected to the suction pump to provide negative pressure suction force, thereby providing negative pressure suction force to the material passage 1501 to suck up the resin particles below. At the same time, the upper clutch assembly switches to the transmission state, while the other separation components remain in the disengagement state. The motor 2 drives the rotating shaft 21 to rotate the upper permeable pressure plate 15, thereby uniformly sucking up the resin below, which can efficiently clean the resin particles and achieve good cleaning effect. After cleaning, the pump body sends new resin particles from the outside through the material pipe 310 to the material hole 1501. At this time, the upper clutch component remains in the transmission state, the rotating shaft 21 continues to rotate, and the new resin particles flow out through the material hole 1501 and are evenly spread on the support plate 13 with the rotating permeable pressure plate 15. After pumping is completed, the rotating shaft 21 stops rotating, and the clutch component returns to the disengaged state. The above structure provided in this application, through the setting of the permeable pressure plate 15 and its rotation, allows the material hole 1501 to extract and fill resin at different positions above the resin adsorption layer 14, which solves the problem of the limited resin treatment effect of the side wall discharge pipe 310 in the background technology, ensuring that the resin can be completely removed and uniformly filled, and improving the efficiency and effect of resin replacement.

[0040] It should be noted that the reference Figure 3 , Figure 4 This application provides three support plates 13, with a permeable pressure plate 15 and a vertical filter layer above each support plate 13; it is understood that in actual use, two support plates 13 and two permeable pressure plates 15 can also be provided according to the usage requirements, with at least one molecular sieve layer below the two permeable pressure plates 15.

[0041] Furthermore, as a specific implementation method, refer to Figure 3 - Figure 6 , Figure 10 - Figure 19 The clutch assembly includes: The support shaft 23 is coaxially arranged and connected to the rotating shaft 21, and a guide hole 231 is coaxially provided at one end. The drive rod 24 is guided in the guide hole 231 and is axially movable. Two conical parts 243 are provided opposite each other in the middle area. The slewing sleeve 32 is rotatably sleeved on the outside of the support shaft 23, and a radial hole 234 is provided on the side wall. A linkage pin 26 is guided in the radial hole 234. The permeable pressure plate 15 is sleeved on the outside of the rotating sleeve 32 and is in non-rotational engagement with the rotating sleeve 32.

[0042] Specifically, the upper end of the support shaft 23 is coaxially provided with a threaded hole 230, and the lower end is provided with a screw 233, wherein the dimensions of the screw 233 are adapted to the threaded hole 230. The lower end of the rotating shaft 21 can also be provided with a threaded post of the same size and parameters as the screw 233. The upper support shaft 23 is directly connected to the rotating shaft 21 through the threaded hole 230, and then radial pins are used to circumferentially position the support shaft 23 and the rotating shaft 21 to ensure smooth circumferential transmission between the rotating shaft 21 and the support shaft 23. The lower support shaft 23 and the upper support shaft 23 are connected by an intermediate shaft 22. The upper and lower ends of the intermediate shaft 22 are respectively provided with threaded posts that mate with threaded holes 230 and countersunk screw holes that mate with screws 233. The connection part is also connected by radial screws for circumferential limiting, so that the upper and lower support shafts 23 are both driven to connect with the rotating shaft 21. A rotating sleeve 32 is rotatably sleeved on the outside of the support shaft 23, and the permeable pressure plate 15 is slidably sleeved on the outside of the rotating sleeve 32. A blind hole, serving as a guide hole 231, is coaxially provided at the upper end of the support shaft 23. The drive rod 24, a power rod, is guided and disposed within the guide hole 231 and can move vertically. Two opposing tapered portions 243 are disposed in the middle region of the drive rod 241. The rotating sleeve 32 is rotatably sleeved outside the support shaft 23. The radial hole 234 on the side wall provides guidance for the linkage pin 26, which can move within the radial hole 234. The end of the radial hole 234 corresponds to the opposing regions of the two opposing tapered portions 243. In the separated state, the drive rod 24 does not move. At this time, the end of the linkage pin 26 corresponds to the opposing regions of the two tapered portions 243, and the other end of the linkage pin 26 is located within the radial hole 231. Within 4, no ship power is applied to the inner circumferential surface of the rotating sleeve 32. When the permeable pressure plate 15 needs to rotate, the drive rod 24 moves axially, and its tapered portion 243 pushes the linkage pin 26 radially outward, causing the linkage pin 26 to abut against the inner wall of the rotating sleeve 32. At this time, the rotation of the support shaft 23 is transmitted to the rotating sleeve 32 through the linkage pin 26, thereby driving the permeable pressure plate 15 to rotate. When rotation is not required, the drive rod 24 moves to the initial position, the tapered portion 243 disengages from the linkage pin 26, and the linkage pin 26 moves radially inward under its own action or the action of other reset structures, separating from the inner wall of the rotating sleeve 32. The rotation of the support shaft 23 no longer drives the rotating sleeve 32 and the permeable pressure plate 15 to rotate. This clutch assembly has a simple structure and can reliably realize the power transmission control between the rotating shaft 21 and the permeable pressure plate 15.

[0043] Furthermore, in order to ensure the transmission effectiveness of the clutch assembly, refer to Figure 14 , Figure 17 , Figure 19 The area corresponding to the rotating sleeve 32 and the linkage pin 26 is provided with multiple fan-shaped grooves 322 evenly spaced around the axis. By providing the fan-shaped grooves 322, when the linkage pin 26 is pushed out radially, the end can extend into the fan-shaped grooves 322 and abut against the spaced area between the fan-shaped grooves 322 to transmit power.

[0044] Furthermore, as a specific implementation method, refer to Figure 10 - Figure 12 The outer circumferential surface of the rotary sleeve 32 is provided with a spline 321, and the permeable pressure plate 15 is coaxially provided with a spline sleeve 151.

[0045] Specifically, a keyway 1510 is provided on the inner wall of the spline sleeve 151, and a spline 321 is provided on the outer circumferential surface of the rotating sleeve 32. The cooperation between the spline 321 and the spline sleeve 151 achieves a non-rotational cooperation between the rotating sleeve 32 and the permeable pressure plate 15, that is, when the rotating sleeve 32 rotates, it can drive the permeable pressure plate 15 to rotate synchronously through the spline 321. At the same time, the spline 321 cooperation allows the permeable pressure plate 15 to move a certain amount of axially relative to the rotating sleeve 32. This meets the requirement of the vertical guiding setting of the permeable pressure plate 15, and the permeable pressure plate 15 can move freely up and down when cleaning and adding resin adsorption layer 14. This connection method has a compact structure, reliable transmission, and can effectively ensure the power transmission efficiency between the rotating sleeve 32 and the permeable pressure plate 15, while meeting the axial movement requirements of the permeable pressure plate 15, thus improving the overall stability and adaptability of the device. Furthermore, as a specific implementation method, refer to Figure 8 - Figure 10 Around the axis, a plurality of connecting pipes 150 are evenly spaced on the upper surface of the permeable pressure plate 15; the connecting pipes 150 are arranged radially outward from the axis of the permeable pressure plate 15, and the material passage holes 1501 are connected to the connecting pipes 150 and are spaced along the extension direction of the connecting pipes 150.

[0046] Specifically, the permeable pressure plate 15 is a plate body uniformly provided with permeable holes. Three connecting pipes 150 are radially arranged on the upper surface of the permeable pressure plate 15. Each connecting pipe 150 is connected to multiple material passage holes 1501. Each connecting pipe 150 has a connection port 1500 that connects to the material pipe 310. The multiple radially arranged connecting pipes 150, in conjunction with the spaced material passage holes 1501 along their extension direction, allow the resin extraction and filling range to cover the entire lower surface of the permeable pressure plate 15, that is, to cover all areas of the resin adsorption layer 14. When the permeable pressure plate 15 rotates, the radially arranged connecting pipes 150 and material passage holes 1501 further expand the resin treatment range, ensuring that the resin in the resin adsorption layer 14, whether in the central or peripheral areas, can be uniformly extracted and filled. This arrangement improves the uniformity and thoroughness of resin replacement, avoiding the problems of localized resin residue or insufficient filling.

[0047] Further reference Figure 8 , Figure 9The lower surface of the permeable pressure plate 15 is also provided with three toothed plates 152. The toothed plates 152 are inclined and correspond one-to-one with the three connecting pipes 150. By setting the toothed plates 152, and the lower end of the toothed plates 152 is inclined to the side closer to the material passage hole 1501, when cleaning the resin adsorption layer 14, the permeable pressure plate 15 is driven to rotate, so that the tooth tips of the toothed plates 152 rotate in the direction of the flow and scrape the resin adsorption layer 14, thereby better cleaning the resin adsorption layer 14. When adding new resin particles, the permeable pressure plate 15 is driven to rotate in the opposite direction. At this time, due to the inclined setting of the toothed plates 152, the back of the toothed plates 152 contacts the resin particles below, which can achieve a uniform spreading effect.

[0048] Furthermore, as a specific implementation method, refer to Figure 11 , Figure 12 , Figure 14 , Figure 17 The upper end of the rotating sleeve 32 is provided with a stepped portion 32a, and a rotary joint 3 is rotatably provided on the outside of the stepped portion 32a. The lower surface of the stepped portion 32a is provided with a first channel 320 corresponding to the connecting pipe 150. One end of the first channel 320 is connected to the connecting pipe 150 through a flexible pipe 31, and the other end is connected to the rotary joint 3.

[0049] Specifically, it should be noted that the flexible pipe 31 is a bendable pipe. The flexible pipe 31 provided here can meet the requirements of both positive and negative pressure applications. It can be made of polytetrafluoroethylene (PTFE) and can meet the requirements of negative pressure suction. The step portion 32a is integrally formed with the rotating sleeve 32, providing an installation position for the rotary joint 3. The rotary joint 3 ensures that when the rotating sleeve 32 and the permeable pressure plate 15 rotate, the external resin delivery pipe can be stably connected to the first channel 320 through the rotary joint 3, avoiding pipe entanglement. The first channel 320 connects the rotary joint 3 with the connecting pipe 150. The flexible pipe 31 adapts to the relative positional changes between the connecting pipe 150 and the first channel 320 when the permeable pressure plate 15 moves up and down, ensuring the sealing and reliability of the connection. This structure ensures that the resin can smoothly enter and exit the connecting pipe 150 during rotation, providing a guarantee for continuous resin replacement and improving the operational stability of the device.

[0050] Furthermore, as a preferred embodiment, the material tube 310 is a rigid tube, and the rotary joint 3 is axially limited to the stepped portion 32a.

[0051] Specifically, the material pipe 310 is a rigid pipe, which is connected to the connection port 34 of the rotary joint 3. The rigid pipe is fixedly connected to the side wall of the tank 1, so that the rotary joint 3 can be axially limited through the rigid material pipe 310. The rotary joint 3 is then axially limited by the step part 32a, so that the rotary sleeve 32 can be axially limited through the rigid pipe, thus ensuring the axial limit requirement of the clutch assembly.

[0052] Furthermore, as a specific implementation, the axial limiting fit between the step portion 32a and the rotary joint 3 is as follows: (Refer to...) Figure 14 , Figure 15 , Figure 18 The outer peripheral surface of the stepped portion 32a is provided with an annular groove 323, and the side wall of the rotary joint 3 is provided with at least one countersunk through hole 30. The countersunk through hole 30 is detachably provided with a limiting member 302, and a ball bearing 303 is provided between the limiting member 302 and the annular groove 323.

[0053] Specifically, the countersunk through-hole 30 includes three evenly spaced members 302 connected to the internal thread of the rotary joint 3. The cross-section of the annular groove 323 is semi-circular, and the member 302 is a columnar structure that limits the ball bearing 303, so that part of the ball bearing 303 is in the countersunk through-hole 30 and part is in the annular groove 323. This allows the ball bearing 303 to axially limit the rotation of the rotary sleeve 32 and the rotary joint 3. The ball bearing 303 rolls between the annular groove 323 and the member 302, reducing rotational friction between the rotary joint 3 and the stepped portion 32a, making the rotation of the rotary joint 3 smoother and reducing energy loss. The member 302 is detachable, facilitating the installation and replacement of the ball bearing 303. The annular groove 323 limits the ball bearing 303, preventing it from dislodging during rotation. This structure improves the flexibility and reliability of the rotary joint 3's rotation and extends the service life of the device.

[0054] Furthermore, as a specific implementation method, refer to Figure 17 The inner circumferential surface of the rotary joint 3 is provided with an annular groove 301 that connects to the material pipe 310. The outer circumferential surface of the stepped portion 32a is provided with a connecting hole 324 that connects the upper end of the guide hole 231 and the annular groove 301. The upper end of the drive rod 24 is integrally provided with a piston 240, and the lower end of the guide hole 231 is provided with a pressure relief hole 232.

[0055] Specifically, the inner circumferential surface of the rotary sleeve 32 is provided with an annular groove 345 that communicates with the first connecting hole 324, and the side wall of the support shaft 23 is provided with a connecting hole 235 corresponding to the annular groove 345. This allows the upper end of the guide hole 231 to communicate with the annular groove 301 of the rotary joint 3, and the lower end of the guide hole 231 to communicate with the inside of the tank 1 through the pressure relief hole 232. With this arrangement, when cleaning the resin adsorption layer 14, a negative pressure suction force will be provided through the corresponding material pipe 310. At this time, there is a negative pressure in the annular groove 301 of the rotary joint 3, which can communicate with the upper end of the guide hole 231 through the first connecting hole 324 and the second connecting hole 235. At this time, the upper end of the support shaft 23 is threadedly connected to the rotating shaft 21 or the intermediate shaft 22, and the upper end is sealed. At this time, a negative pressure can be generated at the upper end of the guide hole 231, thereby generating a pressure difference on both sides of the piston 240. Under the action of the pressure difference, the drive rod 24 can be driven to move.

[0056] When new resin particles are pumped into the tank 1 through the feed pipe 310, a certain positive pressure is provided. At this time, there is positive pressure above the guide hole 231, and a pressure difference is generated on both sides of the piston 240. Under the action of the pressure difference, the drive rod 24 is pushed to move in the opposite direction. Regardless of whether the drive rod 24 moves in the forward or reverse direction, it can drive the linkage pin 26 to move axially, so as to achieve the effect of linking the support shaft 23 and the rotating sleeve 32. The above structure cleverly utilizes the positive and negative pressure linkage drive rod 24 during material cleaning, without the need for a separate drive unit. The structure is simple and reliable.

[0057] Furthermore, springs 25 are provided at both ends of the drive rod 24. In a specific embodiment, springs 25 are provided at both ends of the drive rod 24, and the lengths and parameters of the two springs 25 are identical. When the linkage pin 26 corresponds to the aligned position of the opposing conical portion 243, both springs 25 are in a free state or have equal compression. When the driving force for the drive rod 24 to move disappears, the springs 25 at both ends can push the drive rod 24 back to its initial position, ensuring reliable disengagement or engagement of the clutch assembly. The springs 25 make the movement of the drive rod 24 smoother, avoiding impacts caused by sudden pressure changes, and compensating for wear on the drive rod 24 during long-term use, ensuring the normal operation of the drive rod 24 and improving the reliability and service life of the clutch assembly.

[0058] Furthermore, around the axis of the tank body 1, a plurality of leakage sections 130 are evenly spaced on the support plate 13. Further, referring to... Figure 6 , Figure 7The support plate 13 has three grooves, and the sidewalls of the grooves are evenly distributed with micropores. These grooves serve as drainage sections 130, providing a channel for the flow of waste acid within the tank 1. This allows the waste acid, after being treated by the upper resin adsorption layer 14, to flow through the drainage sections 130 to the lower resin adsorption layer 14 for further treatment. The multiple evenly spaced drainage sections 130 ensure uniform distribution of the waste acid during flow, preventing localized liquid accumulation and ensuring sufficient contact between the waste acid and each resin adsorption layer 14, thereby improving the adsorption treatment effect and ultimately enhancing the quality of waste acid treatment.

[0059] It should be noted that the components in this application are all made of acid-resistant materials in the art, including but not limited to stainless steel (such as 316L, 904L), nickel-based alloys, acid-resistant ceramics, etc., and components that are enamel-treated on the surface of metal materials.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A waste acid treatment device for isooctane production, comprising a vertically arranged tank (1) and at least two support plates (13) vertically spaced within the tank (1), wherein a resin adsorption layer (14) is disposed above each support plate (13); characterized in that, Also includes: The rotating shaft (21) is coaxially arranged with the tank body (1) and rotates around the axis; Two permeable pressure plates (15) are provided corresponding to the support plate (13), and are vertically guided above the resin adsorption layer (14). Multiple material passage holes (1501) are provided on the lower surface. The material pipe (310) is connected at one end to multiple material passage holes (1501) and at the other end extends out of the tank body (1). The clutch assembly is located between the rotating shaft (21) and the permeable pressure plate (15).

2. The waste acid treatment device for isooctane production according to claim 1, characterized in that, The clutch assembly includes: The support shaft (23) is coaxially arranged and connected to the rotating shaft (21) for transmission, and a guide hole (231) is coaxially arranged at one end. The drive rod (24) is guided in the guide hole (231) and is axially movable. Two conical parts (243) are provided opposite each other in the middle area. A rotating sleeve (32) is rotatably mounted on the outside of the support shaft (23), and a radial hole (234) is provided on the side wall. A linkage pin (26) is guided inside the radial hole (234). The permeable pressure plate (15) is sleeved on the outside of the rotating sleeve (32) and is non-rotationally engaged with the rotating sleeve (32).

3. The waste acid treatment device for isooctane production according to claim 2, characterized in that, The outer circumferential surface of the rotary sleeve (32) is provided with a spline (321), and the permeable pressure plate (15) is coaxially provided with a spline sleeve (151).

4. A waste acid treatment device for isooctane production according to claim 2 or 3, characterized in that, Around the axis, a plurality of connecting pipes (150) are evenly spaced on the upper surface of the permeable pressure plate (15); the connecting pipes (150) are arranged radially outward from the axis of the permeable pressure plate (15), and the material passage hole (1501) is connected to the connecting pipe (150) and is spaced along the extension direction of the connecting pipe (150).

5. A waste acid treatment device for isooctane production according to claim 4, characterized in that, The upper end of the rotating sleeve (32) is provided with a stepped part (32a), and a rotary joint (3) is rotatably provided on the outside of the stepped part (32a). The lower surface of the stepped part (32a) is provided with a first channel (320) corresponding to the connecting pipe (150). One end of the first channel (320) is connected to the connecting pipe (150) through a flexible pipe (31), and the other end is connected to the rotary joint (3).

6. A waste acid treatment device for isooctane production according to claim 5, characterized in that, The material tube (310) is a rigid tube, and the rotary joint (3) is axially limited to the stepped part (32a).

7. A waste acid treatment device for isooctane production according to claim 6, characterized in that, The outer peripheral surface of the stepped part (32a) is provided with an annular groove (323), and the side wall of the rotary joint (3) is provided with at least one countersunk through hole (30). The countersunk through hole (30) is detachably provided with a limiting member (302), and a ball (303) is provided between the limiting member (302) and the annular groove (323).

8. A waste acid treatment device for isooctane production according to claim 7, characterized in that, The inner circumferential surface of the rotary joint (3) is provided with an annular groove (301) that connects to the material pipe (310). The outer circumferential surface of the stepped part (32a) is provided with a connecting hole (324) that connects the upper end of the guide hole (231) and the annular groove (301). The upper end of the drive rod (24) is integrally provided with a piston (240), and the lower end of the guide hole (231) is provided with a pressure relief hole (232).

9. A waste acid treatment device for isooctane production according to claim 8, characterized in that, Both ends of the drive rod (24) are provided with springs (25).

10. A waste acid treatment device for isooctane production according to claim 4, characterized in that, Around the axis of the tank (1), a plurality of leakage sections (130) are evenly spaced on the support plate (13).

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