High-efficiency nanoscale gas dispersion device

Abstract

The application belongs to the technical field of fluid mixing, and discloses a high-efficiency nanoscale gas dispersion device, which comprises a shell, an inlet and an outlet are distributed on the outer side of the shell, a gas dispersion mechanism is arranged in the shell, the outer surface of the gas dispersion mechanism is provided with dispersion areas with different pore diameters, a top mounting seat and a bottom mounting seat are respectively arranged at the upper end and the lower end of the gas dispersion mechanism, and a shielding assembly is rotatably sleeved on the outer side of the gas dispersion mechanism. The ceramic diaphragm with different micropore diameters is integrated into a rotatable gas dispersion pipe, and the shielding assembly can be synchronously or relatively rotated, so that the micropore area for gas escape can be switched, the generated bubble size can be controlled, and the specific requirements of different reaction stages or different processes on the gas-liquid mass transfer interface can be matched, so that the reaction process is greatly optimized, and the quality and yield of the final product are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fluid mixing, and particularly relates to a high-efficiency nanoscale gas dispersion device. BACKGROUND

[0002] In many industrial processes, uniformly dispersing gas into liquid medium in the form of micro-bubbles is a key step to realize efficient gas-liquid mass transfer, heat transfer and reaction. For example, in the ozone oxidation process of sewage treatment, the size and distribution of ozone bubbles directly determine the contact efficiency and reaction rate with pollutant molecules; in chemical synthesis, fine bubbles can greatly increase the specific surface area of gas-liquid contact, thereby accelerating the reaction process; in a biological fermentation tank, micro-oxygen bubbles help to improve the oxygen dissolution rate to meet the metabolic needs of microorganisms.

[0003] Traditional gas production methods often use simple perforated pipes or single-hole nozzles to directly blow gas into the liquid, which has obvious limitations. The generated bubbles are usually large in size and unevenly distributed. Another method is to use porous materials for gas dispersion, which can divide the gas flow into smaller bubbles under a certain pressure. Compared with the traditional method, this method has made significant progress. However, in the pursuit of higher efficiency and more precise control applications, this conventional porous material distributor still exposes some technical bottlenecks that are difficult to overcome.

[0004] First, the pore size distribution of conventional porous ceramic or metal sintered plates is usually within a fixed range, so the size of the bubbles it can produce is also basically fixed. However, in practice, it is often necessary to dynamically adjust the size of the bubbles according to different stages of the reaction or different characteristics of the treatment object. For example, larger bubbles are needed for vigorous mixing at the beginning of some reactions, while extremely fine bubbles are needed for fine mass transfer in the later stage. However, the existing technology cannot flexibly control the size of the bubbles in the same device without replacing the core components.

[0005] Second, in actual applications, the liquid medium often contains suspended particles, precipitates or microbial colonies, etc. These impurities can easily clog the small pores on the surface of the porous material during long-term operation, causing poor gas flow and uneven distribution, and even making the distributor completely ineffective. The current solution is to disassemble the distributor after shutdown for acid washing, backflushing or ultrasonic cleaning. This process not only interrupts production, but also increases the maintenance workload and cost. Moreover, frequent disassembly and assembly can also damage the equipment. SUMMARY

[0006] The purpose of the present application is to provide a high-efficiency nanoscale gas dispersion device to solve the problems raised in the background.

[0007] In order to achieve the above object, the present application provides the following technical scheme: A high-efficiency nanometer gas dispersion device, comprising a shell, an inlet and an outlet are distributed on the outer side of the shell, a gas dispersion mechanism is arranged in the shell, different pore size dispersion areas are distributed on the outer surface of the gas dispersion mechanism, a top mounting seat and a bottom mounting seat are respectively arranged at the upper and lower ends of the gas dispersion mechanism, a shielding assembly is rotatably sleeved on the outer side of the gas dispersion mechanism, the top of the shielding assembly is rotatably mounted on the top of the top mounting seat, a linkage combination mechanism is fixedly connected to the top of the shielding assembly, a back flushing gas supply part is arranged on the top of the top mounting seat, a driving rotating part and a gas outlet are arranged on the bottom of the shell, and a fixing mechanism is fixedly arranged on the top of the shell.

[0008] The gas dispersion mechanism is used for inputting internal gas into the shell through the micro-holes on the outer surface, the shielding assembly is used for shielding part of the dispersion areas on the outer side of the gas dispersion mechanism, the driving rotating part is communicated with the gas dispersion mechanism and controls the rotation of the gas dispersion mechanism, the gas outlet inputs pressure air into the gas dispersion mechanism through the driving rotating part, the shielding assembly rotates synchronously with the gas dispersion mechanism through the linkage combination mechanism, and when the top of the linkage combination mechanism is fixed by the fixing mechanism, the gas dispersion mechanism rotates independently in the shielding assembly.

[0009] Preferably, the gas dispersion mechanism comprises micro-porous ceramic membrane pieces and sealing strips, a plurality of micro-porous ceramic membrane pieces are surrounded and fixedly combined into a "micro-porous ceramic tube", the number of the micro-porous ceramic membrane pieces is even, the inner diameters of the micro-holes of every two micro-porous ceramic membrane pieces are the same, and the micro-porous ceramic membrane pieces with the same inner diameter are symmetrically distributed, the sealing strips are arranged on the inner wall of the "micro-porous ceramic tube" and fixed at the joints of the adjacent micro-porous ceramic membrane pieces, the lower ends of the plurality of micro-porous ceramic membrane pieces are fixedly nested in the bottom mounting seat, and the upper ends of the plurality of micro-porous ceramic membrane pieces are fixedly nested in the top mounting seat.

[0010] Preferably, the shielding assembly comprises an assembly cover, a connecting elbow, shielding arc plates, an inner cavity and a connecting ring, the assembly cover is rotatably sleeved on the top of the top mounting seat, one end of the connecting elbow is fixedly arranged on the outer side of the assembly cover, the other end of the connecting elbow is fixedly connected with the shielding arc plates, the number of the shielding arc plates is two, the shielding arc plates are sleeved on the outer side of the "micro-porous ceramic tube" and symmetrically distributed, two groups of gap areas are formed between the two shielding arc plates, the gap areas are matched with a single group of micro-porous ceramic membrane pieces, and the connecting ring is fixedly arranged on the top of the shielding arc plates.

[0011] Preferably, the driving rotating member comprises a bottom pipe, a gear one, a motor and a gear two, the bottom pipe is fixedly connected to the bottom of the bottom mounting base and movably passes through the bottom of the shell, the gear one is fixedly sleeved to the outer side of the bottom pipe, the motor is fixed to the bottom of the shell through the frame, the gear two is fixed to the output shaft of the motor, and the gear two is in meshing connection with the gear one, the gas delivery end is fixed to the bottom of the shell through the mounting frame, and the gas delivery end is sleeved to the bottom of the bottom pipe, and the gas delivery end is used for guiding the pressure gas.

[0012] Preferably, the linkage combination mechanism comprises a rotating pipe and an inner sleeve rod, the inner sleeve rod is fixed to the top of the assembly cover, the rotating pipe is internally provided with a clamping groove, the inner sleeve rod is matched with the clamping groove through the clamping plate on the outer side and is clamped in the rotating pipe, and the top of the rotating pipe movably passes through the shell and extends to the inside of the fixing mechanism.

[0013] Preferably, the fixing mechanism comprises a top ring and an electric push rod, the electric push rod is fixed to the top of the shell through the support plate, the electric push rod moves and abuts against the outer side of the rotating pipe through the free end and fixes the rotating pipe, and the free end of the electric push rod movably passes through the top ring.

[0014] Preferably, the inside of the assembly cover is annularly distributed with fixedly sleeved magnetic blocks two, the top of the top mounting base is fixedly provided with a magnetic block one, the magnetic block one and the magnetic blocks two correspond to each other and attract each other, the top of the top mounting base is provided with an annular groove, the bottom of the assembly cover is rotatably sleeved in the annular groove, and the inner wall of the assembly cover is further provided with a limiting ring rotatably sleeved in the top mounting base, the inner wall of the annular groove is sleeved with a damping ring, and the damping ring is sleeved to the outer side of the assembly cover.

[0015] Preferably, the back-flushing gas supply part comprises an assembly cylinder, a gas pump, a lead-through frame and a suction hole, the assembly cylinder is fixedly installed at the top of the top mounting base, the gas pump is fixedly installed in the assembly cylinder, the lead-through frame is fixedly connected to the inside of the assembly cover and is in communication with the connecting curved pipe, the suction hole is formed in the inside of the inner sleeve rod and is in communication with the outside of the shell, and the gas outlet end of the gas pump is in communication with the lead-through frame.

[0016] Preferably, the top of the shell inner cavity is provided with a distribution input mechanism, the top of the shell is fixedly connected with a storage cylinder, the outer side of the top mounting base is fixedly provided with an intermittent input assembly, the top of the intermittent input assembly is rotatably sleeved in the distribution input mechanism, the distribution input mechanism is in communication with the storage cylinder, and the intermittent input assembly intermittently feeds the surfactant in the storage cylinder into the solution in the shell by rotating with the gas dispersion mechanism.

[0017] Preferably, the intermittent feeding assembly includes a crank arm, a rotating ring, and an intermediate groove; the dispensing input mechanism includes a connecting groove, an assembly ring groove, and an adapter port; the assembly ring groove is located at the top of the housing cavity; the rotating ring is rotatably fitted into the assembly ring groove; the connecting groove is located at the top of the housing, and its two ends are connected to the assembly ring groove and the storage cylinder, respectively; one end of the crank arm is fixed to the bottom of the rotating ring, and the other end of the crank arm is fixedly connected to the top mounting base; the adapter port is located at the top of the housing cavity and is connected to the assembly ring groove; the intermediate groove is located at the top of the rotating ring, and the adapter port is located on the rotation path of the intermediate groove.

[0018] The beneficial effects of this invention are as follows:

[0019] (1) The present invention integrates ceramic membranes with different micropore diameters into a rotatable gas dispersion tube and uses a shielding component that can rotate synchronously or relatively. Without stopping the machine, and only through electrical control, the micropore region from which the gas escapes can be switched and the size of the generated bubbles can be controlled to match the specific requirements of different reaction stages or different processes for the gas-liquid mass transfer interface, which greatly optimizes the reaction process and improves the quality and yield of the final product.

[0020] (2) By further utilizing the shielding component, the present invention further constructs a mobile backflush area by utilizing its "shielding" state, and through an independent backflush gas supply unit, it can perform strong and local reverse gas purging on any shielded ceramic diaphragm area, thereby removing pollutants attached to and blocked in the micropores online and efficiently, ensuring the long-term stability of gas dispersion efficiency, and greatly reducing maintenance costs and the risk of production interruption.

[0021] (3) By using a gas dispersion mechanism to drive the intermittent feeding component to rotate synchronously, the present invention realizes the automatic, periodic and quantitative addition of liquid additives such as surfactants. The entire addition process is completed in a closed environment inside the equipment, avoiding errors from manual operation and pollution from the external environment. It is suitable for the fields of biological fermentation and fine chemical industry where environmental cleanliness or sterility requirements are strict, simplifies the process flow and improves the automation level of the entire system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the housing of the present invention;

[0025] Figure 4 For this Figure 3 Enlarged structural diagram at point A;

[0026] Figure 5 The explosion schematic diagram of the driving rotating member and the gas delivery end of the present application;

[0027] Figure 6 The cross-sectional schematic diagram of the microporous ceramic membrane and the shielding arc plate of the present application;

[0028] Figure 7 The cross-sectional view of the gas dispersion mechanism and the shielding assembly of the present application;

[0029] Figure 8 The schematic diagram of the shielding assembly of the present application;

[0030] Figure 9 The explosion schematic diagram of the linkage combination mechanism of the present application;

[0031] Figure 10 The cross-sectional view of the backflushing gas supply part and the linkage combination mechanism of the present application;

[0032] Figure 11 The connection schematic diagram of the intermittent feeding assembly and the assembly cover of the present application.

[0033] In the figure: 1, the shell; 2, the microporous ceramic membrane; 3, the sealing strip; 4, the bottom mounting seat; 5, the top mounting seat; 6, the shielding assembly; 61, the assembly cover; 62, the connecting elbow; 63, the shielding arc plate; 64, the internal cavity; 65, the connecting ring; 7, the linkage combination mechanism; 71, the rotating pipe; 72, the inner sleeve rod; 8, the backflushing gas supply part; 81, the assembly cylinder; 82, the air pump; 83, the lead-through frame; 84, the suction hole; 9, the fixing mechanism; 91, the top ring; 92, the electric push rod; 10, the driving rotating member; 101, the bottom pipe; 102, the gear one; 103, the motor; 104, the gear two; 11, the gas delivery end; 12, the ring groove; 13, the magnetic block one; 14, the damping ring; 15, the magnetic block two; 16, the intermittent feeding assembly; 161, the curved arm; 162, the rotating ring; 163, the intermediate groove; 17, the storage cylinder; 18, the communication groove; 19, the assembly ring groove; 20, the matching port. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0035] As Figures 1 to 11As shown, this embodiment of the invention provides a high-efficiency nanoscale gas dispersion device, including a housing 1. An inlet and an outlet are distributed on the outer side of the housing 1. A gas dispersion mechanism is provided inside the housing 1. The outer surface of the gas dispersion mechanism has dispersion areas with different pore sizes. A top mounting base 5 and a bottom mounting base 4 are fixedly provided at the upper and lower ends of the gas dispersion mechanism, respectively. A shielding component 6 is rotatably sleeved on the outside of the gas dispersion mechanism. The top of the shielding component 6 is rotatably mounted on the top of the top mounting base 5. A linkage assembly mechanism 7 is fixedly connected to the top of the shielding component 6. A backflushing gas supply section 8 is provided on the top of the top mounting base 5. The bottom of the housing 1 is provided with… The drive rotating component 10 and the gas supply end 11 are connected, and the top of the housing 1 is fixedly provided with a fixing mechanism 9. The gas dispersion mechanism is used to input the internal gas into the housing 1 through the micro-holes on the outer surface. The shielding component 6 is used to shield part of the dispersion area outside the gas dispersion mechanism. The drive rotating component 10 is connected to the gas dispersion mechanism and controls the rotation of the gas dispersion mechanism. The gas supply end 11 inputs pressurized air into the gas dispersion mechanism through the drive rotating component 10. The shielding component 6 rotates synchronously with the gas dispersion mechanism through the linkage combination mechanism 7. When the fixing mechanism 9 fixes the top of the linkage combination mechanism 7, the gas dispersion mechanism rotates independently inside the shielding component 6.

[0036] Sealing sleeves are provided at the top, inside and bottom of the housing 1 to maintain dynamic sealing during the rotation of the bottom tube 101 and the rotating tube 71.

[0037] The gas dispersion mechanism includes microporous ceramic membranes 2 and sealing strips 3. Multiple microporous ceramic membranes 2 surround and are fixedly combined to form a "microporous ceramic tube". The number of microporous ceramic membranes 2 is even, and the inner diameter of the micropores of every two microporous ceramic membranes 2 is the same. Microporous ceramic membranes 2 with the same inner diameter are symmetrically distributed. The sealing strip 3 is located on the inner wall of the "microporous ceramic tube" and fixed at the joint of adjacent microporous ceramic membranes 2. The lower ends of multiple microporous ceramic membranes 2 are fixedly nested in the bottom mounting base 4, and the upper ends of multiple microporous ceramic membranes 2 are fixedly nested in the top mounting base 5. A shielding component 6 is also included. The assembly includes an assembly cover 61, a connecting curved tube 62, a shielding arc plate 63, an internal cavity 64, and a connecting ring 65. The assembly cover 61 is rotatably sleeved on the top of the top mounting base 5. One end of the connecting curved tube 62 is fixed to the outside of the assembly cover 61, and the other end of the connecting curved tube 62 is fixedly connected to the shielding arc plate 63. There are two shielding arc plates 63, which are sleeved on the outside of the "microporous ceramic tube" and are symmetrically distributed. Two sets of symmetrical gap areas are formed between the two shielding arc plates 63. These gap areas match the single set of microporous ceramic membranes 2. The connecting ring 65 is fixed on the top of the shielding arc plate 63.

[0038] The gas dispersion mechanism utilizes its microporous characteristics to force pressurized gas into the liquid within the housing 1 through micropores, achieving gas dispersion and forming microbubbles for thorough and uniform contact and reaction. Specifically, multiple microporous ceramic membranes 2 surround a tubular structure, with each pair of membranes forming a dispersion area. Different groups of dispersion areas have different pore sizes to accommodate gas dispersion requirements and the formation of bubbles of varying sizes. In conjunction with the outer shielding arc plate 63, during dispersion, the shielding arc plate 63 covers other groups of dispersion areas, leaving one group of symmetrically arranged microporous ceramic membranes 2 exposed. This ensures that the pressurized air entering the gas dispersion mechanism is dispersed through the designated dispersion area. By rotating the shielding arc plate 63, different groups of dispersion areas can be exposed, allowing for convenient switching and the generation of bubbles of different sizes, greatly adapting to various dispersion requirements. The sealing strip 3 seals the gaps between adjacent microporous ceramic membranes 2, and the multiple microporous ceramic membranes 2 are nested and fixed by the top mounting base 5 and bottom mounting base 4, maintaining stable assembly.

[0039] By utilizing the assembly cover 61 to form an integral structure with the connecting curved tube 62 and the shielding arc plate 63, and cooperating with the assembly cover 61 to rotate on the top of the top mounting base 5, the stable rotation of the shielding arc plate 63 is maintained.

[0040] Example 1: Start the gas supply end 11 to pressurize and send the process gas into the bottom tube 101 of the drive rotating component 10. The gas then enters the hollow "microporous ceramic tube." Under pressure, the gas is forced to escape from the exposed micropores of the microporous ceramic membrane 2 with a specific pore size, forming uniform micron or nano-sized bubbles in the liquid. Simultaneously, the motor 103 can be restarted, causing the entire gas dispersion mechanism and shielding component 6 to rotate synchronously under damping and magnetic forces. As the rotation occurs, the bubbles disperse, achieving uniform aeration of the liquid throughout the reactor. During the reaction process, if... If it is necessary to change the size of the bubble, the operator only needs to activate the electric push rod 92 in the fixing mechanism 9, so that the push rod extends and presses against the rotating tube 71 of the linkage combination mechanism 7. The external shielding component 6 is locked and cannot rotate. The motor 103 at the bottom is started, and the internal "microporous ceramic tube" will rotate independently relative to the fixed shielding component 6 after the magnetic force is overcome. By controlling the angle of rotation, until another set of microporous ceramic membranes 2 with different pore sizes rotate to the gap area of ​​the shielding component 6 and are exposed. After the adjustment is in place, the motor 103 is stopped and the electric push rod 92 is retracted to complete the adjustment.

[0041] The driving rotating part 10 comprises a bottom pipe 101, a gear one 102, a motor 103 and a gear two 104. The bottom pipe 101 is fixedly connected to the bottom of the bottom mounting seat 4 and movably passes through the bottom of the shell 1. The gear one 102 is fixedly sleeved on the outer side of the bottom pipe 101. The motor 103 is fixedly connected to the bottom of the shell 1 through a frame. The gear two 104 is fixedly connected to the output shaft of the motor 103 and is in meshing connection with the gear one 102. The gas delivery end 11 is fixedly connected to the bottom of the shell 1 through a mounting frame and is sleeved on the bottom of the bottom pipe 101. The gas delivery end 11 is used for guiding the pressure gas.

[0042] The driving rotating part 10 controls the rotation of the gas dispersion mechanism, and cooperates with the gas delivery end 11 to ensure that the pressure gas can be stably input into the gas dispersion mechanism through the bottom pipe 101 during the rotation.

[0043] The linkage combination mechanism 7 comprises a rotating pipe 71 and an inner sleeve rod 72. The inner sleeve rod 72 is fixedly connected to the top of the assembly cover 61. The rotating pipe 71 is internally provided with a clamping groove. The inner sleeve rod 72 is clamped in the rotating pipe 71 through the cooperation of the clamping plate on the outer side and the clamping groove. The top of the rotating pipe 71 movably passes through the shell 1 and extends into the inside of the fixing mechanism 9. The inside of the assembly cover 61 is annularly provided with fixedly embedded magnetic blocks two 15. The top of the top mounting seat 5 is fixedly provided with magnetic blocks one 13. The magnetic blocks one 13 and the magnetic blocks two 15 are one-to-one corresponding and mutually attractive. The top of the top mounting seat 5 is provided with a ring groove 12. The bottom of the assembly cover 61 is rotatably sleeved in the ring groove 12. The inner wall of the assembly cover 61 is further provided with a limiting ring. The limiting ring is rotatably sleeved in the top mounting seat 5. The inner wall of the ring groove 12 is embedded with a damping ring 14. The damping ring 14 is sleeved on the outer side of the assembly cover 61.

[0044] On the one hand, by using the magnetic attraction force of the magnetic blocks one 13 and the magnetic blocks two 15 and cooperating with the damping effect of the damping ring 14, the assembly cover 61 on the top is driven to rotate synchronously when the gas dispersion mechanism rotates, thereby driving the shielding assembly 6 to rotate synchronously, so that the shielding assembly 6 can rotate while being specially shielded relative to the gas dispersion mechanism without removing the special shielding effect, and the inside of the shell 1 is dynamically dispersed during the rotation. On the other hand, by the inner sleeve rod 72 and the rotating pipe 71 in the linkage combination mechanism 7, the rotating pipe 71 is driven to rotate by driving the inner sleeve rod 72 to rotate when the shielding assembly 6 rotates, thereby reversely limiting the rotation of the shielding assembly 6 when the rotating pipe 71 is fixedly limited, overcoming the damping force and the magnetic attraction force, so that the shielding assembly 6 is not driven to rotate when the gas dispersion assembly rotates, and the rotation of the shielding assembly 6 relative to the outside of the gas dispersion mechanism is automatically realized, the deflection control of different dispersion areas is realized, the dispersion areas of different apertures are automatically switched, the switching of different size bubbles is completed, and the switching action relies on the rotation of the driving rotating part 10 without the need for additional control equipment.

[0045] Wherein, the fixing mechanism 9 comprises a top ring 91 and an electric push rod 92, the electric push rod 92 is fixed on the top of the shell 1 through a support plate, the electric push rod 92 moves through the free end and abuts against the outside of the rotating pipe 71 and fixes the rotating pipe 71, and the free end of the electric push rod 92 moves through the top ring 91.

[0046] The fixing mechanism 9 realizes the fixation of the rotating pipe 71 through the abutting and extruding of the electric push rod 92, completes the fixation of the shielding assembly 6, and releases the synchronous rotation of the gas dispersion mechanism and the shielding assembly 6.

[0047] Wherein, the back flushing gas supply part 8 comprises an assembly cylinder 81, a gas pump 82, a through frame 83 and a suction hole 84, the assembly cylinder 81 is fixedly installed on the top of the top mounting seat 5, the gas pump 82 is fixedly installed in the assembly cylinder 81, the through frame 83 is fixedly connected in the inside of the assembly cover 61 and is communicated with the connecting curved pipe 62, the suction hole 84 is opened in the inside of the inner sleeve rod 72 and is communicated with the outside of the shell 1, and the gas outlet end of the gas pump 82 is communicated with the through frame 83.

[0048] The back flushing gas supply part 8 provides pressure air through the gas pump 82, inputs into the inside cavity 64 of the shielding arc plate 63 through the through frame 83 and the connecting curved pipe 62, after dispersion treatment, performs back flushing of the fine blockage or attachments in the micropores by blowing pressure air along the outside surface of the microporous ceramic membrane 2, further realizes quick self-cleaning by the shielding assembly 6, and cooperates with the fixation of the shielding assembly 6 by the fixing mechanism 9, drives the rotation of the gas dispersion mechanism by the driving rotating part 10, realizes back flushing cleaning of each microporous ceramic membrane 2 in the gas dispersion mechanism in turn, further realizes comprehensive, efficient and automatic self-cleaning, and avoids dirty blockage.

[0049] Embodiment 2: The microporous ceramic membrane 2 to be cleaned is rotated to the area covered by the shielding arc plate 63, the gas pump 82 in the back flushing gas supply part 8 on the top mounting seat 5 is started, the gas pump 82 sucks clean air from the outside of the shell 1 through the suction hole 84, sends the pressurized air into the inside cavity 64 of the shielding arc plate 63 through the through frame 83 and the connecting curved pipe 62, the high-pressure air flow blows off the impurities blocked in the micropores from the inside of the shielding arc plate 63, realizes efficient online back flushing cleaning, and all dispersion areas can be cleaned in turn by fixing the shielding assembly 6 and rotating the “microporous ceramic pipe” at the same time.

[0050] Wherein, the top of the inner cavity of the shell 1 is provided with a distribution input mechanism, the top of the shell 1 is fixedly connected with a storage cylinder 17, the outer side of the top mounting seat 5 is fixedly provided with an intermittent feeding assembly 16, the top of the intermittent feeding assembly 16 is rotatably sleeved in the distribution input mechanism, and the distribution input mechanism is in communication with the storage cylinder 17, the intermittent feeding assembly 16 feeds the surfactant in the storage cylinder 17 into the solution in the shell 1 in time intermittently following the rotation of the gas dispersion mechanism, the intermittent feeding assembly 16 comprises a curved arm 161, a rotating ring 162 and an intermediate groove 163, the distribution input mechanism comprises a communication groove 18, an assembly ring groove 19 and an adaptive port 20, the assembly ring groove 19 is arranged at the top of the inner cavity of the shell 1, the rotating ring 162 is rotatably sleeved in the assembly ring groove 19, the communication groove 18 is arranged at the top of the shell 1, and the communication groove 18 is in communication with the assembly ring groove 19 and the storage cylinder 17 respectively, one end of the curved arm 161 is fixedly connected to the bottom of the rotating ring 162, and the other end of the curved arm 161 is fixedly connected with the top mounting seat 5, the adaptive port 20 is arranged at the top of the inner cavity of the shell 1, and the adaptive port 20 is in communication with the assembly ring groove 19, and the intermediate groove 163 is arranged at the top of the rotating ring 162, and the adaptive port 20 is located on the rotating path of the intermediate groove 163.

[0051] By further utilizing the rotation of the gas dispersion mechanism, the intermittent feeding assembly 16 is driven to rotate in the rotation process, and when the rotating ring 162 rotates in the assembly ring groove 19, the intermediate groove 163 thereon is intermittently in communication with the communication groove 18 and the adaptive port 20, when the intermediate groove 163 is in communication with the communication groove 18 outside, the surfactant in the storage cylinder 17 is automatically stored in the intermediate groove 163 through the communication groove 18 under the action of gravity, and after following the rotating ring 162, when the intermediate groove 163 is in communication with the adaptive port 20 at the bottom, the surfactant is automatically released into the liquid, realizing stable bubbles, avoiding bubble aggregation, and in the rotation process, the surfactant is filled into the intermediate groove 163 without being in communication with the liquid inside the shell 1, and the surfactant is added when it is carried to the adaptive port 20 in the rotation process, and the whole process is not directly in communication with the external air, realizing automatic quantitative addition under sealing.

[0052] In the process of equipment operation, as the whole rotation of the gas dispersion mechanism, the rotating ring 162 of the intermittent feeding assembly 16 at the top is also rotated synchronously, when the intermediate groove 163 on the rotating ring 162 rotates to be aligned with the communication groove 18, a quantitative portion of liquid (such as surfactant) is automatically obtained from the external storage cylinder 17, when it continues to rotate to be aligned with the adaptive port 20 at the bottom, the liquid is automatically added dropwise into the reaction system, realizing automatic, quantitative and periodic sealed addition of auxiliary reagents.

[0053] The working principle and use process of the application are as follows:

[0054] Dispersion area determination

[0055] The liquid medium to be treated is pumped in through the inlet on the housing 1 until the predetermined liquid level is reached, then the required bubble size is determined, the electric push rod 92 in the fixing mechanism 9 is activated to make the electric push rod 92 abut against the clamping rotating pipe 71, the locking of the linkage combination mechanism 7 is completed, and the motor 103 in the bottom driving rotating part 10 is activated to drive the gas dispersion mechanism "microporous ceramic pipe" to rotate at low speed through the gear two 104 and the gear one 102. Since the shielding assembly 6 is limited by the rotating pipe 71 and maintains the fixed position unchanged at this time, the relative position of the shielding assembly 6 and the "microporous ceramic pipe" is observed until the gap region thereof is aligned with the region of the microporous ceramic diaphragm 2 having the required pore size, the rotation is stopped after rotation, and the fixing mechanism 9 is reset to release the locking of the linkage combination mechanism 7, and the determination of the target dispersion region is completed.

[0056] Start the gas dispersion

[0057] Start the gas inlet end 11, pressurize the process gas into the bottom pipe 101 of the driving rotating part 10, and the gas enters the inside of the hollow "microporous ceramic pipe". Under the action of pressure, the gas is forced to escape from the micropores of the microporous ceramic diaphragm 2 exposed outside with a specific pore size, forming uniform micron or nanometer-sized bubbles in the liquid. At the same time, the motor 103 can be activated again to make the entire gas dispersion mechanism and the shielding assembly 6 rotate synchronously under the action of damping force and magnetic force, and the bubble dispersion is realized as the rotation proceeds, achieving uniform aeration of the liquid in the entire reactor.

[0058] Adjust the bubble size online

[0059] During the reaction process, if it is necessary to change the size of the bubbles, the operator only needs to activate the electric push rod 92 in the fixing mechanism 9 to make the push rod extend and abut against the rotating pipe 71 of the linkage combination mechanism 7, and the external shielding assembly 6 is locked and cannot rotate. The internal "microporous ceramic pipe" will rotate independently relative to the fixed shielding assembly 6 after the magnetic force is overcome by activating the bottom motor 103. By controlling the rotation angle, another group of microporous ceramic diaphragms 2 with different pore sizes are rotated to the gap region of the shielding assembly 6 and exposed, and the adjustment is completed after the adjustment is completed. Stop the motor 103 and retract the electric push rod 92.

[0060] Online automatic backpurging self-cleaning

[0061] When the need to clear the blockage (such as the back pressure rises), according to the above manner will need to clean the microporous ceramic membrane 2 to the area covered by the shielding arc plate 63, start the top of the seat 5 on the anti purge gas supply 8 in the air pump 82, air pump 82 from the shell 1 outside through the suction hole 84 suction clean air, after pressurization through the conduction frame 83 and connecting elbow 62 into the shielding arc plate 63 inside the cavity 64, high pressure gas flow will be from the inside of the shielding arc plate 63, reverse blowing the surface of the microporous ceramic membrane 2 covered by it, will be blocked in the microporous impurities strong blow off, realize the efficient on-line anti blowing cleaning, and by fixed shielding assembly 6 while rotating "microporous ceramic tube", can be in turn to all dispersed area cleaning;

[0062] Automated addition of auxiliary agents

[0063] In the process of equipment operation, with the overall rotation of the gas dispersion mechanism, the rotating ring 162 of the intermittent feeding assembly 16 at the top will also rotate synchronously, when the middle groove 163 on the rotating ring 162 rotates to align with the communication groove 18, it will automatically obtain a quantitative liquid (such as surfactant) from the external storage cylinder 17, when it continues to rotate to align with the bottom of the adapter port 20, this liquid will be automatically added to the reaction system, realizing the automatic, quantitative, periodic sealed addition of auxiliary reagent.

[0064] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A high-efficiency nanoscale gas dispersion device, comprising a shell (1), the outer side of the shell (1) is distributed with an inlet and an outlet, characterized in that: The inside of the shell (1) is provided with a gas dispersion mechanism, the outer surface of the gas dispersion mechanism is distributed with dispersion areas of different pore sizes, the upper and lower ends of the gas dispersion mechanism are respectively fixedly provided with a top mounting seat (5) and a bottom mounting seat (4), the outer part of the gas dispersion mechanism is rotatably sleeved with a shielding assembly (6), the top of the shielding assembly (6) is rotatably mounted on the top of the top mounting seat (5), the top of the shielding assembly (6) is fixedly connected with a linkage combination mechanism (7), the top of the top mounting seat (5) is provided with a back flushing gas supply part (8), the bottom of the shell (1) is provided with a driving rotating part (10) and a gas conveying end (11), and the top of the shell (1) is fixedly provided with a fixing mechanism (9). The gas dispersion mechanism is used for inputting internal gas into the shell (1) through the outer surface micropores, the shielding assembly (6) is used for shielding part of the dispersion areas on the outer side of the gas dispersion mechanism, the driving rotating part (10) is communicated with the gas dispersion mechanism and controls the rotation of the gas dispersion mechanism, the gas conveying end (11) inputs pressure air into the gas dispersion mechanism through the driving rotating part (10), the shielding assembly (6) rotates synchronously with the gas dispersion mechanism through the linkage combination mechanism (7), and when the top of the linkage combination mechanism (7) is fixed by the fixing mechanism (9), the gas dispersion mechanism rotates independently inside the shielding assembly (6).

2. The high-efficiency nanoscale gas dispersion device of claim 1, wherein: The gas dispersion mechanism comprises microporous ceramic diaphragms (2) and sealing strips (3), a plurality of microporous ceramic diaphragms (2) are surrounded and fixedly combined into a "microporous ceramic tube", the number of the microporous ceramic diaphragms (2) is even, the inner diameters of the micropores of every two microporous ceramic diaphragms (2) are the same, and the microporous ceramic diaphragms (2) with the same micropore inner diameter are symmetrically distributed, the sealing strips (3) are located on the inner wall of the "microporous ceramic tube" and are fixed at the joints of adjacent microporous ceramic diaphragms (2), the lower ends of the plurality of microporous ceramic diaphragms (2) are fixedly nested in the bottom mounting seat (4), and the upper ends of the plurality of microporous ceramic diaphragms (2) are fixedly nested in the top mounting seat (5).

3. The high efficiency nanoscale gas dispersion device of claim 2, wherein: The shielding assembly (6) comprises an assembly cover (61), a connecting elbow (62), shielding arc plates (63), an inner cavity (64) and a connecting ring (65), the assembly cover (61) is rotatably sleeved on the top of the top mounting seat (5), one end of the connecting elbow (62) is fixed on the outer side of the assembly cover (61), the other end of the connecting elbow (62) is fixedly connected with the shielding arc plates (63), the number of the shielding arc plates (63) is two, the shielding arc plates (63) are sleeved on the outer side of the "microporous ceramic tube" and are symmetrically distributed, two groups of gap areas are formed between the two shielding arc plates (63) and match a single group of microporous ceramic diaphragms (2), and the connecting ring (65) is fixed on the top of the shielding arc plates (63).

4. The high efficiency nanoscale gas dispersion device of claim 1, wherein: The driving rotating piece (10) comprises a bottom pipe (101), a gear one (102), a motor (103) and a gear two (104), the bottom pipe (101) is fixedly connected to the bottom of the bottom mounting seat (4) and movably passes through the bottom of the shell (1), the gear one (102) is fixedly sleeved to the outer side of the bottom pipe (101), the motor (103) is fixed to the bottom of the shell (1) through a frame, the gear two (104) is fixed to the output shaft of the motor (103), and the gear two (104) is in meshing connection with the gear one (102), the gas delivery end (11) is fixed to the bottom of the shell (1) through a mounting frame, and the gas delivery end (11) is sleeved to the bottom of the bottom pipe (101), and the gas delivery end (11) is used for guiding the pressure gas.

5. The high efficiency nanoscale gas dispersion device of claim 3, wherein: The linkage combination mechanism (7) comprises a rotating pipe (71) and an inner sleeve rod (72), the inner sleeve rod (72) is fixed to the top of the assembly cover (61), the rotating pipe (71) is internally provided with a clamping groove, the inner sleeve rod (72) is clamped in the rotating pipe (71) through the cooperation of the clamping plate on the outer side and the clamping groove, and the top of the rotating pipe (71) movably passes through the shell (1) and extends into the inside of the fixing mechanism (9).

6. The high efficiency nanoscale gas dispersion device of claim 5, wherein: The fixing mechanism (9) comprises a top ring (91) and an electric push rod (92), the electric push rod (92) is fixed to the top of the shell (1) through a support plate, the electric push rod (92) moves and abuts against the outer side of the rotating pipe (71) through the free end and fixes the rotating pipe (71), and the free end of the electric push rod (92) movably passes through the top ring (91).

7. The high efficiency nanoscale gas dispersion device of claim 3, wherein: The inside of the assembly cover (61) is annularly provided with fixedly sleeved magnetic blocks two (15), the top of the top mounting seat (5) is fixedly provided with magnetic blocks one (13), the magnetic blocks one (13) correspond to the magnetic blocks two (15) one by one and attract each other, the top of the top mounting seat (5) is provided with an annular groove (12), the bottom of the assembly cover (61) is rotatably sleeved in the annular groove (12), the inner wall of the assembly cover (61) is further provided with a limiting ring, the limiting ring is rotatably sleeved in the top mounting seat (5), the inner wall of the annular groove (12) is sleeved with a damping ring (14), and the damping ring (14) is sleeved to the outer side of the assembly cover (61).

8. The high efficiency nanoscale gas dispersion device of claim 7, wherein: The back flushing gas supply part (8) comprises an assembly cylinder (81), a gas pump (82), a through frame (83) and a suction hole (84), the assembly cylinder (81) is fixedly installed at the top of the top mounting seat (5), the gas pump (82) is fixedly installed in the assembly cylinder (81), the through frame (83) is fixedly connected to the inside of the assembly cover (61) and is communicated with the connecting curved pipe (62), the suction hole (84) is formed in the inside of the inner sleeve rod (72) and is communicated with the outside of the shell (1), and the gas outlet end of the gas pump (82) is communicated with the through frame (83).

9. The high efficiency nanoscale gas dispersion device of claim 1, wherein: The top of the inner cavity of the shell (1) is provided with a distribution input mechanism, the top of the shell (1) is fixedly connected with a storage cylinder (17), the outer side of the top mounting base (5) is fixedly provided with an intermittent feeding assembly (16), the top of the intermittent feeding assembly (16) is rotatably sleeved in the distribution input mechanism, the distribution input mechanism is communicated with the storage cylinder (17), and the intermittent feeding assembly (16) intermittently feeds the surfactant in the storage cylinder (17) into the solution in the shell (1) following the rotation time of the gas dispersion mechanism.

10. The high efficiency nanoscale gas dispersion device of claim 9, wherein: The intermittent feeding assembly (16) comprises a curved arm (161), a rotating ring (162) and an intermediate groove (163), the distribution input mechanism comprises a communication groove (18), an assembly ring groove (19) and an adaptive port (20), the assembly ring groove (19) is arranged at the top of the inner cavity of the shell (1), the rotating ring (162) is rotatably sleeved in the assembly ring groove (19), the communication groove (18) is arranged at the top of the shell (1), and the two ends of the communication groove (18) are respectively communicated with the assembly ring groove (19) and the storage cylinder (17), one end of the curved arm (161) is fixedly connected with the bottom of the rotating ring (162), the other end of the curved arm (161) is fixedly connected with the top mounting base (5), the adaptive port (20) is arranged at the top of the inner cavity of the shell (1) and is communicated with the assembly ring groove (19), the intermediate groove (163) is arranged at the top of the rotating ring (162), and the adaptive port (20) is located on the rotation path of the intermediate groove (163).

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