Gas-liquid fluidization separation assembly, device and system

Abstract

The invention discloses a gas-liquid fluidization separation assembly, device and system, and belongs to the technical field of fluidization and motion adsorption combined gas separation. In order to overcome the defects of long recovery process and high energy consumption in the prior art, the gas-liquid fluidization separation assembly comprises a three-bin fluidized bed in which solid particles adsorb and separate water molecules in a fluidized state; after water absorption, the particles are subjected to segmented frequency-division vibration under illumination in the regeneration unit to realize desorption regeneration; and the particles are conveyed to the fluidized bed for recycling by the particle conveying unit. The optimization scheme comprises a monitoring sensor, a gas equipartition piece, back flushing control, particle preparation and the like. The separating device is additionally provided with an airflow conveying unit. An intelligent control system is introduced into the separation system, and a control instruction is generated through monitoring data operation to coordinate gas-liquid fluidization separation. The technology is combined with the main technologies of gel material photosensitive characteristics, solid particle structures, fluidized beds and segmented complex frequency vibration, efficient separation and regeneration are achieved through full-surface contact under suspension flow, and the continuous fluidization gas-liquid separation scheme is low in energy consumption and recyclable.

Description

Technical Field

[0001] The present invention relates to a gas-liquid separation technology, in particular to a gas-liquid separation device and method based on the fluidization principle. It belongs to the technical field of gas separation combining fluidization and moving adsorption. Background Art

[0002] Gas-liquid separation is a process of removing tiny liquid water droplets from gas, and it is a gas-liquid separation technology widely used in the fields of chemical engineering, operation, and environmental protection. For industrial production systems, the performance and efficiency of gas-liquid separation technology directly affect the reliability of process operation; for specific working places, the fog separation efficiency in the working space directly affects the working safety level; for air quality, if the liquid droplets in industrial exhaust gas are not completely removed and accumulate to a high content, they are prone to fuse and coagulate with acid radical particles of the same level, promoting the formation of air haze.

[0003] The prior art ZL2018203013740 discloses a fluidized demister experimental device, which is a gas-liquid separation product. The device includes a fluidized demister, a fan, a water pump, a demisting medium, a water tank, a nozzle, a rotameter, a frequency converter, and an air inlet pipe. The shell of the fluidized demister is designed with an upper opening larger than the lower opening, and multiple sieve plates are arranged inside the shell of the fluidized demister; the air flow of the fan entraining the liquid droplets in the nozzle passes through the sieve plates and enters the demisting medium. Under the action of the upward air flow, the demisting medium is in a stable fluidized state. At the same time, the upward air flow encounters the fluidized demisting medium, and under the action of inertia and baffle, the air flow direction deflects, and the liquid droplets carried in the air flow are continuously adsorbed, condensed, and intercepted on the surface of the demisting medium. After the air flow passing through the demisting medium to remove liquid droplets and solid particles, it is discharged from the air flow channel at the top of the demister, thus completing fluidized demisting.

[0004] Since the fluidization technology adopted in the above technical solution belongs to the traditional fluidization technology, that is, the demisting medium is hollow or solid particles, the demisting medium after fluidized bed drying requires specific subsequent treatment processes, such as regeneration and cleaning, re-drying and screening, mechanical strength recovery, surface modification, etc. Therefore, it has the inherent defects of the traditional solid particle fluidization technology, mainly including: First, to meet the fluidization speed, the demisting medium has specific processing requirements, and there are obvious losses during the drying and recovery processes, increasing the total operating cost of the equipment; Second, the subsequent treatment cycle of the demisting medium is long and the processes are many, so there is a time threshold for particle regeneration, restricting the continuous operation of the equipment. Third, the processes and cycles of the subsequent treatment of the demisting medium also increase the operating cost of the equipment; Fourth, the operation of the equipment requires sufficient power support, and it is difficult to continue with a storage battery during long-term or periodic operation, restricting the expansion of the equipment usage scenarios. Summary of the Invention

[0005] The object of the present invention is to provide a gas-liquid separation technical solution based on the principle of fluidized adsorption technology in view of the deficiencies of the prior art.

[0006] To achieve the above object, the present invention first provides a fluidized separation demisting component, and its technical solution is as follows.

[0007] A gas-liquid fluidized separation component: It includes a loop composed of a fluidized bed, a particle regeneration unit, and a particle transfer unit connected in sequence before and after, as well as solid particles and a power unit. The particle regeneration unit and the particle transfer unit are respectively connected to the bottom and top of the fluidized bed, and there are channel gates between the fluidized bed, the particle regeneration unit, and the particle transfer unit; The main body of the fluidized bed is a fluidization box, which is a vertical box body. It is divided into upper, middle, and lower three compartments by a feed door and an air flow equalizing component, namely a feed compartment, a separation compartment, and a discharge compartment. The length of the separation compartment is adjustable. The discharge compartment is connected to the particle regeneration unit, and the feed compartment is connected to the particle transfer unit. Air inlets and exhaust ports are respectively opened on the box walls of the discharge compartment and the feed compartment. The aperture of the gas passage of the air flow equalizing component is smaller than the particle size of the solid particles; The main body of the particle regeneration unit is a desorption box, which is fixedly installed at the bottom through a shock absorber. There is a water collecting plate in the desorption box. The water collecting plate is fixedly connected to the inner wall of the desorption box and forms a water collecting chamber with the bottom of the desorption box. The water collecting plate is provided with water collecting holes and has a drainage slope towards the water collecting holes. There is a separation cover on the water collecting holes; above the water collecting chamber is a light irradiation chamber, and there is a vibrating screen in the light irradiation chamber. The vibrating screen is a multi-stage screen surface independent vibration structure. The rear end of the last stage screen surface is connected to a storage box, and the storage box is connected to the particle transfer unit; the continuous line of the vibrating screen l The front end is higher than the rear end and presents a slope α , and the vibration conditions of the screen surface gradually change from high frequency and low amplitude in the front section to low frequency and high amplitude in the rear section as a whole; there is a desorption light source above the vibrating screen, and the desorption light source irradiation area is on the vibrating screen surface; a hose connects the discharge compartment and the desorption box and opens to the first stage screen surface, and the water collecting chamber has a drainage hole; The particle transfer unit includes a feeding mechanism and an external closed pipeline, and the feeding mechanism connects the storage box and the feed compartment; The solid particles are photosensitive silica gel particles, and the particle size is larger than the aperture of the screen holes of the screen surface. The photosensitive silica gel particles are particulate matter with a photothermal conversion material and a hygroscopic salt composition as functional components and a gel network as a supporting material; The power unit includes a power supply unit and a control circuit, which supply energy to energy-consuming components.

[0008] The core concept of the above-mentioned gas-liquid fluidized separation component of the present invention is to utilize the water molecule adsorption ability and light desorption performance of the photosensitive silica gel material to achieve high-renewability, continuous operation, and efficient gas-liquid separation with low energy consumption. First, by processing the photosensitive silica gel into particulate materials, the relative surface area during the utilization of the adsorption material is maximized; second, the fluidized bed technology is introduced to suspend and move the adsorption material particles to form a working state of full-surface contact adsorption. At the same time, by utilizing the shape characteristics of the long-axis type of the fluidized bed, an adsorption path is formed to give full play to the advantages of full-surface contact adsorption; finally, during the regeneration process of the recovered solid particles, when they jump forward on the vibrating screen surface, the particulate shape characteristics are also utilized. When jumping forward and rotating, the whole surface is exposed to light for efficient desorption and regeneration. The gas-liquid fluidized separation component can achieve efficient energy-saving and environmental-friendly gas-liquid separation and the regeneration and recycling of materials in situ for the product.

[0009] The present invention further optimizes the above-mentioned gas-liquid fluidized separation component. The following optimization schemes can be implemented separately or simultaneously on the premise of not conflicting with each other.

[0010] Optimization 1: The length of the separation chamber is adjustable.

[0011] The length of the separation chamber is adjustable, so as to change the fluidization space volume and the fluidization path length, and adjust the fluidized separation conditions. Specifically, the position of the air flow equalizing component can move along the axial direction of the fluidization box to dynamically separate the separation chamber and the discharge chamber, realizing the adjustment of the length of the separation chamber.

[0012] Optimization 2: Optimization of the air flow equalizing component.

[0013] The main body of the air flow equalizing component is a plate-like structure. The frame is connected to the fluidization box. Windows are arrayed in the frame. The windows are fixedly connected to the frame and / or adjacent windows through window frames. An openable window sash is fixed in the window frame. The window control component controls the opening and closing angles of each window sash; the movable grille is connected to the lower wind surface of the frame. The aperture of the movable grille is smaller than the particle size of the solid particles; the movable grille is an openable structure. When opened, it covers the windows, disperses the air flow and prevents the solid particles from falling; when retracted, it reveals the windows to allow the solid particles to pass through.

[0014] Optimization 3: Optimization of the vibrating screen structure.

[0015] The slope of the vibrating screen α = 8° - 12°, the vibration frequency of the screen surface is 15 Hz - 40 Hz, the amplitude is 1 mm - 5 mm, and it vibrates in segments with different frequencies.

[0016] Optimization 4: Optimization of the solid particles.

[0017] The particle size range of the solid particles is 0.5 mm - 2 mm, the bulk density is 600 kg / m³ - 750 kg / m³, the specific surface area is 500 m² / g - 800 m² / g, and there is a superhydrophobic layer on the surface, and the contact angle ≥ 120°.

[0018] Preparation of solid particles: First, prepare the particle raw materials. Then, embrittle the particle raw materials in liquid nitrogen and mechanically crush them into powders. Mix the powders with water and a binder to form a slurry, and extrude the slurry into round-shaped formed particle materials. The formed particle materials are soaked in a 1% PTFE dispersion liquid and heat-treated at 80 °C. After taking them out and naturally cooling, drain the residual PTFE dispersion liquid on the surface to form a superhydrophobic coating on the surface, and obtain the finished solid particles through vibrating screening. Optimization Five: Add monitoring sensors.

[0019] The monitoring sensors include: an air flow sensor for monitoring the gas flow rate at the air inlet, a gas humidity sensor for monitoring the air flow humidity at the exhaust port, a distance sensor for monitoring the position of the solid particles in the fluidized bed and the length of the separation chamber, a displacement sensor for monitoring the sedimentation speed of the solid particles in the separation chamber, a pressure sensor for monitoring the air flow pressure at the air outlet of the air flow equalizing component, the air pressures at the upper and lower ends of the separation chamber, and the internal pressure of the separation chamber, and a temperature sensor for monitoring the surface temperature of the solid particles on the vibrating screen surface, and a solid humidity sensor for monitoring the humidity of the solid particles at the end section of the screen surface.

[0020] Using the above gas-liquid fluidized separation component of the present invention, the present invention also provides a gas-liquid fluidized separation device, and its technical solution is as follows.

[0021] A gas-liquid fluidized separation device: realized by using the above gas-liquid fluidized separation component. The air flow transportation unit is connected to the front end of the air inlet. The front end of the air flow transportation unit is a centrifugal fan, and the rear end is an axial flow fan. The axial flow fan is connected to the air inlet.

[0022] The gas-liquid fluidized separation device of the present invention enhances the air intake performance of the gas-liquid fluidized separation component by connecting the air flow transportation unit, and improves both the connectivity and independence during the gas-liquid separation operation.

[0023] Using the above gas-liquid fluidized separation device of the present invention, the present invention also provides a gas-liquid fluidized separation system, and its technical solution is as follows.

[0024] A gas-liquid fluidized separation system: realized by using the above gas-liquid fluidized separation device; it further includes an intelligent control system, and the intelligent control system includes, The central control unit uses the data acquisition module to transmit data, execute operations, generate control instructions, and coordinate the gas-liquid fluidized separation process. The control instructions include fluidization regulation instructions, circulation regulation instructions, and regeneration control instructions; The data acquisition module collects the monitoring data of the monitoring sensors and transmits it to the central control unit; the data acquisition module includes a fluidization data acquisition module and a regeneration data acquisition module; the fluidization data acquisition module is connected to each monitoring sensor in the fluidized bed to read the state data of the fluidized bed; the regeneration data acquisition module is connected to each monitoring sensor in the particle regeneration unit to read the regeneration state data; The fluidization control module is connected to the centrifugal fan, axial flow fan, separation chamber length adjustment mechanism, feed door, and air flow equalization component; it adjusts the air intake, feeding, and separation chamber length of the fluidized bed according to the fluidization control instructions of the central control unit. The circulation control module is connected to the feeding mechanism, the channel gate between the fluidized bed and the particle regeneration unit, and the channel gate between the particle regeneration unit and the particle conveying unit; it controls the conveying timing of solid particles in the system according to the circulation control instructions of the central control unit. The regeneration control module is connected to the vibrating screen and the desorption light source, and adjusts the light conditions of the desorption light source and the vibration conditions of the vibrating screen according to the regeneration control instructions of the central control unit. The fault diagnosis module is connected to the monitoring sensors, triggers the protection program according to the identified abnormal state, and transmits the abnormal state information to the central control unit.

[0025] Through the cooperation of each module of the intelligent control system, the above gas-liquid fluidization separation system of the present invention uses the control instructions generated based on the monitoring data to schedule the operating conditions of the components, realizing automated separation operations.

[0026] The present invention further provides the fluidization separation operation control logic that can be adopted by the above gas-liquid fluidization separation system, which is specifically as follows.

[0027] Open the feed door, put the solid particles in the feed bin into the separation chamber, start the air flow transportation unit, open the air inlet, and guide the gas to be separated to enter the separation chamber through the air flow equalization component to suspend the solid particles. The monitoring sensors in the fluidized bed read the data. When the environment in the separation chamber is stable, open the exhaust port, adjust the length of the separation chamber according to the exhaust humidity and the voidage of the separation chamber, and at the same time adjust the air flow state entering the chamber of the separation chamber as needed to jointly maintain the stability of the environment in the chamber. When the monitoring indicators meet the separation condition group, officially enter the gas-liquid separation working state. The separation condition group includes: the air intake speed v at the air inlet ≥ 1.2 times the minimum fluidization speed, the sedimentation speed of solid particles < 0.1 m / s, the chamber pressure P of the separation chamber ∈ [-50, 50] Pa, and the voidage of the separation chamber 0.75 - 0.85. During the fluidization separation process, when the monitoring indicators show that the particle moisture absorption efficiency decreases or the fluidization performance deteriorates, close the exhaust port, reduce the air flow speed of the air flow transportation unit. When the solid particles settle to the bottom of the separation chamber, open the channel between the separation chamber and the discharge bin to make the moisture-absorbed solid particles enter the discharge bin, and then close the channel between the separation chamber and the discharge bin. Open the channel gate between the fluidized bed and the particle regeneration unit, put the solid particles in the discharge bin onto the first-stage screen surface of the vibrating screen, and then close the gate. Turn on and adjust the desorption light source. The monitoring sensor in the particle regeneration unit reads the data and starts the vibration of the screen surface. Wait for the solid particles to enter the last-stage screen surface, and the solid humidity sensor monitors the humidity of the solid particles on the screen surface. When the solid particles are qualified for desorption, open the outlet of the last-stage screen surface, and the solid particles are sent into the storage bin. The solid particles in the storage bin are temporarily stored, or directly sent into the feed bin by the particle conveying unit. During the fluidized separation operation, the fault diagnosis module monitors and identifies abnormal states.

[0028] During the long-term separation operation of the above gas-liquid fluidized separation system, the solid particles in the near gas flow equalizing part area (i.e., the upstream direction of the gas flow) will adsorb water molecules first and gain weight, and the suspension height is relatively low. After the fluidized separation proceeds for a certain period, as the number of solid particles with increased moisture absorption and weight increases, it is easy for the weight-increased particles to accumulate at the bottom of the separation chamber. Although this will not affect the gas-liquid separation, it will have adverse effects such as destroying the air intake equalization effect, interfering with the fluidization operation state in the chamber, shortening the effective length of the fluidized separation path, reducing the separation efficiency, and false alarm of faults. Therefore, the optimization solution provided by the present invention is to increase the backwashing control.

[0029] A backwashing component is arranged in the fluidized box. The backwashing component leads the gas near the exhaust port at the top of the fluidized box to the near gas flow equalizing part at the bottom of the separation chamber, and the nozzle controlled to open sprays a high-frequency and fast-flushing gas flow downward to the center. The intelligent control system includes a backwashing control module. The backwashing control module is connected to the backwashing component and the gas flow equalizing part, and adjusts the opening and closing of the gas flow equalizing part and the backwashing program of the backwashing component according to the backwashing regulation instruction of the central control unit. The central control unit uses the data collected by the data acquisition module to perform operations to generate regulation instructions, including backwashing control instructions. During the fluidized separation process, the central control unit calculates the backwashing score according to Equation 1 based on the monitoring data S , when S >0.4, the central control unit generates a backwashing control instruction.

[0030] Equation 1 In the formula, H -Humidity of the gas at the exhaust port, %, H TH -Design threshold of the exhaust humidity, %, V-Sedimentation velocity of the solid particles, m / s.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention provides a gas-liquid separation technology. Starting from the photosensitive characteristics of the gel material, this technology combines the high-efficiency water absorption and dehydration performance of the gel material by processing it into solid particles and then combining it with the fluidized bed technology. Utilizing the technical feature that the solid particles in the fluidized bed are in a suspended state, the entire surface of the solid particles can come into contact with the gas, adsorbing water molecules in the gas to achieve efficient adsorption and separation. At the same time, compared with the conventional arrangement method of fixing the adsorption material, the suspended full-surface contact adsorption not only improves the utilization efficiency of the adsorption material but also enables the adsorption particles to deform proportionally in all directions of the sphere during the hygroscopic expansion process, thereby maintaining the granular shape and uniform texture, always meeting the material performance requirements for the solid particles to be "fluidized" by the gas flow in the fluidized bed, and enabling the fluidized adsorption working condition to continue. In the light regeneration unit for the hygroscopic and saturated solid particles, a combination of a vibrating screen and light is adopted. Utilizing the jumping forward movement of the solid particles on the vibrating screen, the entire surface of the particles can receive light, improving the desorption and water loss efficiency and realizing the rapid regeneration of the adsorption material. The inventive concept organically combines the application technology of the photosensitive characteristics of the gel material, the fluidized bed separation technology, and the adsorption technology separation technology, which is a new technical concept of gas-liquid separation technology. (2) The technology of the present invention solves the defects of the prior art, such as the multiple processes, long cycle, and high loss in the drying and recovery process of solid particle materials, and realizes rapid in-situ gas-liquid separation and rapid regeneration of materials, thus making it possible to carry out continuous gas-liquid separation operations. (3) The material properties of the solid particle material are one of the key technologies for the good performance of the products in the technical solution of the present invention. Based on the previous research data, the present invention provides the control indexes for the performance of the solid particles. (4) The present invention also provides the operation control scheme for the fluidized separation system and the key control conditions. (5) The products of the present invention are simply designed and structurally compact, without safety limiting conditions such as high pressure and high temperature, and can operate continuously in-situ. Therefore, they can be processed into various specifications and sizes according to the needs of the operation scenario. At the same time, the present invention has low energy consumption and can be powered by a storage battery in a specific operation field. Therefore, the technical solution of the present invention can fully meet the flexible layout requirements of the operation environment, which cannot be achieved by the existing fluidized separation technology solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the gas-liquid fluidized separation component.

[0033] Figure 2 is a schematic structural diagram of the fluidized bed.

[0034] Figure 3 is a schematic structural diagram of the particle regeneration unit.

[0035] Figure 4 is a schematic internal structure diagram of the particle regeneration unit, (a) showing the front side, and (b) showing the oblique side.

[0036] Figure 5 It is a schematic diagram showing the structure and parameter meanings of the vibrating screen.

[0037] Figure 6 It is a schematic diagram of the structure of the particle transfer unit (showing the screw feeding mechanism).

[0038] Figure 7 It is a schematic diagram of the structure for adjusting the length of the separation chamber, (a) nested box body adjustment structure, (b) air flow equalizing part adjustment structure.

[0039] Figure 8 It is a schematic diagram of the structure of the backwashing component.

[0040] Figure 9 It is a schematic diagram of the structure of the air flow equalizing part.

[0041] Figure 10 It is a schematic diagram of the window array structure.

[0042] Figure 11 It is a schematic diagram of the structure of the symmetric water collecting plate, (a) external schematic diagram, (b) A - A sectional structure (showing the symmetric flat plate), (c) A - A sectional structure (showing the symmetric arc plate).

[0043] Figure 12 It is a schematic diagram of the structure of the gas - liquid fluidized separation device, (a) showing the oblique side, (b) showing the front end, (c) showing the rear end.

[0044] Figure 13 It is a schematic diagram of the structure of the air flow transportation unit.

[0045] Figure 14 It is a schematic diagram of the structure of the intelligent control system.

[0046] The numerical markings in the attached drawings are respectively: 1 Fluidized bed; 11 Fluidized box; 11a Lower box body; 11b Upper box body; 111 Feed bin; 112 Separation chamber; 113 Discharge bin; 114 Air inlet; 115 Exhaust port; 12 Feed door; 13 Air flow equalizing part; 131 Frame; 132 Window; 1321 Window frame; 1322 Window sash; 133 Window control component; 134 Movable grille; 14 Backwashing component; 141 Suction nozzle; 142 Nozzle; 2 Particle regeneration unit; 21 Desorption box; 21a Water collecting bin; 21b Lighting chamber; 22 Vibration damping seat; 23 Water collecting plate; 231 Water collecting hole; 232 Drain cover; 24 Vibrating screen; 241 Screen surface; 241a First - stage screen surface; 241b Last - stage screen surface; 25 Desorption light source; 26 Storage bin; 27 Hose; 3 Particle transfer unit; 31 Feeding mechanism; 32 Closed pipeline; 4 Solid particles; 5 Power unit; 6 Monitoring sensors; 61 Airflow sensor; 62 Gas humidity sensor; 63 Distance sensor; 64 Displacement sensor; 65 Air pressure sensor; 66 Temperature sensor; 67 Solid humidity sensor; 7 Airflow conveying unit; 71 Centrifugal fan; 72 Axial flow fan; 8 Mobile unit; 81 Vehicle body; 82 Travel control unit; 100 Central control unit; 200 Data acquisition module; 210 Fluidization data acquisition module; 220 Regeneration data acquisition module; 300 Fluidization regulation module; 400 Circulation regulation module; 500 Regeneration regulation module; 600 Fault diagnosis module; 700 Backflush control module; 800 Mobile control module. Detailed implementation manners

[0047] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0048] Embodiment 1

[0049] As Figures 1 to 6 shown, a gas-liquid fluidized separation component is processed.

[0050] Figure 1 is a schematic structural diagram of the gas-liquid fluidized separation component. The dotted line indicates the airflow direction.

[0051] The gas-liquid fluidized separation component includes a loop formed by connecting a fluidized bed 1, a particle regeneration unit 2, and a particle conveying unit 3 in sequence, as well as solid particles 4 and a power unit 5; the particle regeneration unit 2 and the particle conveying unit 3 are respectively connected to the bottom and top of the fluidized bed 1, and channel gates are provided between the fluidized bed 1, the particle regeneration unit 2, and the particle conveying unit 3.

[0052] Figure 2 is a schematic structural diagram of the fluidized bed. The dotted arrow indicates the solid particle conveying direction.

[0053] The main body of the fluidized bed 1 is a fluidization box 11. The fluidization box 11 is a vertical box body, which is divided into upper, middle, and lower three compartments by a feed door 12 and an airflow equalizing member 13, namely a feed compartment 111, a separation compartment 112, and a discharge compartment 113; the discharge compartment 113 is connected to the particle regeneration unit 2, and the feed compartment 111 is connected to the particle conveying unit 3; air inlets 114 and exhaust ports 115 are respectively opened on the box walls of the discharge compartment 113 and the feed compartment 111, and the pore diameter of the gas channel of the airflow equalizing member 13 is smaller than the particle size of the solid particles 4.

[0054] In the fluidized bed 1, the gas to be subjected to gas-liquid separation (hereinafter referred to as the gas to be separated) enters the discharge bin 113 from the air inlet 114, and after passing through the air flow equalizing member 13, evenly enters the separation bin 112, causing the solid particles 4 in the bin to move into a fluidized state. The gas to be separated is fluidized and dried in the separation bin 112, and then discharged from the exhaust port 115 out of the fluidized box 11. The solid particles 4 are put into the separation bin 112 from the feed bin 111, and after the fluidized separation operation is completed, enter the discharge bin 113, waiting to enter the particle regeneration unit 2 for active regeneration.

[0055] To improve the discharging speed of the solid particles, the bottom of the discharge bin 113 is designed in a funnel shape, and the funnel opening is connected to the particle regeneration unit 2.

[0056] Figure 3 is a schematic structural diagram of the particle regeneration unit; Figure 4 is a schematic diagram of the internal structure of the particle regeneration unit, (a) shows the front side, and (b) shows the inclined side; Figure 5 is a schematic diagram of the structure and parameter meaning of the vibrating screen.

[0057] The main body of the particle regeneration unit 2 is the desorption box 21. The bottom of the desorption box 21 is fixedly installed through the shock absorber seat 22. There is a water collecting plate 23 in the desorption box 21. The water collecting plate 23 is fixedly connected to the inner wall of the desorption box 21 and forms a water collecting bin 21a with the bottom of the desorption box 21. The water collecting plate 23 is provided with water collecting holes 231 and has a drainage slope towards the water collecting holes 231. There is a departure cover 232 on the water collecting holes 231. The departure cover 232 covers the water collecting holes 231 but has a spacing from the hole opening; above the water collecting bin 21a is the light irradiation bin 21b. There is a vibrating screen 24 in the light irradiation bin 21b. The vibrating screen 24 is a multi-stage screen surface 241 independent vibration structure. The rear end of the last-stage screen surface 241b is connected to the storage bin 26. The storage bin 26 is connected to the particle conveying unit 3; the continuous line of the vibrating screen 24 l The front end is higher than the rear end, with a slope of 8° - 12°, and the slope of the front-stage screen surface is greater than that of the rear-stage screen surface. There is a desorption light source 25 above the vibrating screen 24. The irradiation area of the desorption light source 25 is on the screen surface of the vibrating screen 24; the hose 27 connects the discharge bin 113 and the desorption box 21 and opens to the first-stage screen surface 241a. The water collecting bin 21a has a drainage hole.

[0058] In this example, the continuous line of the screen surface l slope α = 9°, the slope of the first-stage screen surface 241a α a = 10° - 15°, the slope of the last-stage screen surface 241b α b = 5° - 8°.

[0059] In the particle regeneration unit 2, the solid particles 4 waiting for active regeneration enter the first-stage screen surface 241a of the vibrating screen 24 from the discharge bin 113 through the hose 27, vibrate along the segmented screen surface, are irradiated by the desorption light source 25 during the vibration process to dehydrate, and are completed for regeneration after dehydration on the last-stage screen surface 241b, and then enter the storage bin 26, waiting to be transported by the particle conveying unit 3.

[0060] The segmented independent vibration of the vibrating screen 24 is such that, according to the structural characteristics and material properties of the solid particles 4 at different screen positions, the appropriate vibration frequency and amplitude can be independently configured, so as to maximize the single-particle drying accuracy and overall drying uniformity of the solid particles 4, and ensure the process stability of the fluidized separation state. The larger slope of the front-stage screen surface helps to promote the dispersion of the water-absorbing solid particles 4, enables them to receive light faster, and quickly enter the dehydration state; the smaller slope of the rear-stage screen surface reduces the movement speed of the dried solid particles, avoiding collision and friction losses. In addition to the screen surface slope structure, different vibration conditions can also be configured for different screen segments, keeping the overall design of the screen surface gradually changing from high-frequency low-amplitude in the front stage to low-frequency high-amplitude in the rear stage (i.e., the vibration frequency gradually decreases and the amplitude gradually increases), enhancing the control of the vibration desorption process and efficiency. The overall gradual change of the screen surface vibration conditions from high-frequency low-amplitude in the front stage to low-frequency high-amplitude in the rear stage enables the solid particles 4 to quickly disperse wet particles and avoid caking on the front-stage screen surface; balance the two processes of photothermal desorption and forward movement on the middle-stage screen surface; and consolidate the desorption and drying effect and smoothly input into the storage bin 26 on the rear-stage screen surface.

[0061] In this example, the vibrating screen 24 adopts a complex-frequency vibrating screen structure to achieve independent vibration of multiple screen surfaces 241. The vibration conditions are specifically a vibration frequency of 15 Hz to 40 Hz and an amplitude of 1 mm to 5 mm. Each segment is configured as follows: the first-stage screen surface 241a vibrates at high frequency and low amplitude, with a frequency of 35 Hz to 40 Hz and an amplitude of 1 mm to 2 mm; the last-stage screen surface 241b vibrates at low frequency and high amplitude: with a frequency of 15 Hz to 20 Hz and an amplitude of 3 mm to 5 mm; the middle-stage screen surface in between vibrates at medium frequency and medium amplitude, with a frequency of 25 Hz to 30 Hz and an amplitude of 2 mm to 3 mm.

[0062] The removed moisture leaks down from the screen holes to the water collecting plate 23 and enters the water collecting bin 21a through the water collecting holes 231 to achieve relative sealing. Relative sealing means that, except for the water collecting holes 231, the moisture in the water collecting bin 21a cannot contact the light-shielding bin 21b. The outlet cover 232 needs to completely cover the orifice and have the smallest possible distance from it.

[0063] Figure 6 It is a schematic structural diagram of the particle conveying unit (showing the screw feeding mechanism).

[0064] The particle conveying unit 3 includes a feeding mechanism 31 and an external closed pipeline 32, and the feeding mechanism 31 connects the storage bin 26 and the feeding bin 111.

[0065] The feeding mechanism 31 feeds the regenerated solid particles 4 in the storage bin 26 into the feed bin 111 to wait for being re-fed into the separation bin 112 for the next operation.

[0066] The feeding mechanism 31 can adopt conventional granular material conveying mechanisms, such as screw conveying mechanisms, tipping bucket conveying mechanisms, belt conveying mechanisms, chain plate conveying mechanisms, etc.

[0067] The solid particles 4 are photosensitive silica gel particles, and the particle size is larger than the aperture of the sieve holes of the sieve surface 241. The photosensitive silica gel particles are particulate matters with a photothermal conversion material and a hygroscopic salt composition as functional components and a gel network as a supporting material.

[0068] In this example, the solid particles 4 are selected as MXene-LiCl@PAM-CS composite particles (Chinese name: polyacrylamide-chitosan-based MXene-lithium chloride photothermal hygroscopic composite particles). In order to cooperate with light dehydration, the desorption light source 25 adopts a xenon lamp array, and the power density of the xenon lamp light source is 300 W / m² and the wavelength is 250 nm - 400 nm.

[0069] The power unit 5 includes a power supply unit and a control circuit to supply energy to each energy-consuming component.

[0070] Example Two

[0071] As Figure 7 shown, a gas-liquid fluidized separation assembly is processed. The same parts as those in Example One will not be repeated, and the differences lie in the structure of the fluidized bed 1.

[0072] The length of the separation bin 112 is adjustable, so as to change the fluidization space volume and the fluidization path length and adjust the fluidization separation conditions. The specific design is that the position of the air flow equalizing part 13 can move axially along the fluidized box 11 to dynamically separate the separation bin 112 and the discharge bin 113, realizing the adjustment of the length of the separation bin 112.

[0073] Figure 7 It is a schematic diagram of the separation bin length adjustment structure, (a) nested box body adjustment structure, (b) air flow equalizing part adjustment structure. The dotted arrow indicates the length adjustment direction.

[0074] As Figure 7 shown in (a), the fluidized box 11 is a nested structure. The lower box body 11a is nested inside the upper box body 11b and is slidably connected axially along the fluidized box 11. The top of the lower box body 11a is the air flow equalizing part 13, and the inner cavity of the lower box body 11a is the discharge bin 113. The lower box body 11a can slide up and down axially along the fluidized box 11, so as to adjust the length of the separation bin 112.

[0075] As Figure 7In (b), the air flow equalizing member 13 is slidably connected to the vertical wall of the fluidization tank 11 along the axial direction of the fluidization tank 11. The air flow equalizing member 13 adjusts the length of the separation chamber 112 by axial movement.

[0076] Embodiment III

[0077] As Figure 8 shown, a gas-liquid fluidized separation assembly is processed. The parts identical to the above embodiments will not be repeated. The difference lies in the structure of the fluidized bed 1.

[0078] Figure 8 It is a schematic structural diagram of the backwashing assembly.

[0079] A backwashing assembly 14 is arranged in the fluidization tank 11. The suction nozzles 141 of the backwashing assembly 14 are arranged near the exhaust port 115 at the top of the fluidization tank 11, and the nozzles 142 are arranged near the air flow equalizing member 13 at the bottom of the separation chamber 112. The suction nozzles 141 and the nozzles 142 are connected by an air pipeline. The nozzles 142 are circumferentially and uniformly distributed along the inner wall of the separation chamber 112, and the air jet direction forms an angle of 30° to 45° with the inner wall. The jet pressure of the nozzles 142 is 0.4 MPa to 0.6 MPa.

[0080] The backwashing assembly 14 uses the suction nozzles 141 to lead the separated and dried gas at the top of the fluidization tank 11 to the nozzles 142 through a pipeline for pressurized jetting, forming an instantaneous and rapid scouring air flow from the wall nozzles 142 to the lower center, flushing the solid particles 4 accumulated at the bottom out of the separation chamber 112 and into the discharge bin 113, thereby maintaining the stability of the fluidized state. The nozzles 142 circumferentially and uniformly distributed along the inner wall of the separation chamber 112 can be controlled to open and close synchronously as a whole or separately.

[0081] Embodiment IV As Figures 9 to 10 shown, a gas-liquid fluidized separation assembly is processed. The parts identical to the above embodiments will not be repeated. The difference lies in the structure of the fluidized bed 1.

[0082] Figure 9 It is a schematic structural diagram of the air flow equalizing member; Figure 10 It is a schematic structural diagram of the window array.

[0083] The airflow equalizer 13 includes a main body of a plate-like structure; a frame 131 connected to the fluidization box 11, an array of windows 132 in the frame 131, the windows 132 are fixedly connected to the frame 131 and / or adjacent windows 132 through a window frame 1321, a window sash 1322 that can be opened and closed is fixed in the window frame 1321, and a window control assembly 133 controls the opening and closing angle of each window sash 1322; a movable grille 134 connected to the downwind side of the frame 131, and the aperture of the movable grille 134 is smaller than the particle size of the solid particles 4; the movable grille 134 is an openable and closable structure, which covers all windows 132 when opened, disperses the airflow and prevents the solid particles 4 from falling; when retracted, all windows 132 are exposed to allow the solid particles 4 to pass through. The airflow equalizer 13 uses the window 132 array structure to finely divide the intake airflow, and uses the window control assembly 133 to control the opening and closing degree of the window sash 1322 to adjust the size of the airflow in each branch, and at the same time uses the grille to cover the air outlet surface to further disperse the airflow and reduce turbulence.

[0084] The window sash 1322 in the window frame 1321 is a single leaf or multiple leaves.

[0085] The movable grille 133 may be structured to be openable and closable in a specific manner: the main body may be a flexible net, which is unfolded and retracted (such as folded or rolled up) along the plane of the frame 131. Alternatively, the main body may be a rigid plate, which is hinged to the frame 131 and opened and closed in a door or window manner.

[0086] Embodiment 5 like Figure 11 As shown, a gas-liquid fluidized separation component is processed, and the same points as the above embodiments are not repeated, and the difference lies in the structure of the particle regeneration unit 2.

[0087] The functions of the water collecting plate 23 of the particle regeneration unit 2 are: first, to close the water collecting chamber 21a; second, to quickly collect water and guide it to the water collecting hole 231; and third, to prevent the splashing of leaking water drops. The shape of the water collecting plate 23 needs to ensure that the water collecting hole 231 is located at the foot of the drainage slope. At the same time, the surface structure (including coating) of the water collecting plate 23 should have splash-proof and hydrophobic effects, so that the water droplets will not splash after falling and the rapid flow will not be blocked. The water collecting hole 231 needs to minimize the total area as much as possible, increase the number of openings under the premise of a certain total area, and shorten the distance of water flowing into the hole.

[0088] Figure 11 The schematic diagram of the symmetrical water collecting plate structure is shown in (a) external schematic diagram, (b) AA cross-sectional structure (showing a symmetrical flat plate), and (c) AA cross-sectional structure (showing a symmetrical curved plate). The water collecting plate 23 adopts a symmetrical structure, so that there are drainage slopes facing each other on both sides, and a water collecting hole 231 is opened along the center line.

[0089] Embodiment 6

[0090] A gas-liquid fluidized separation component is manufactured. The same points as the above embodiments are not repeated, and the difference lies in the coating of the inner wall of the component.

[0091] The surface of the component in contact with the solid particles 4 has an anti-sticking coating or a nano-hydrophobic coating. Specifically: inside the particle regeneration unit 2, the surface of the components other than the storage bin 26 is coated with a nano-hydrophobic coating, and the inner wall of the storage bin 26 is coated with an anti-sticking coating; inside the fluidized bed 1 and the particle transfer unit 3, the surface of the components in contact with the solid particles 4 has an anti-sticking coating.

[0092] Example Seven A gas-liquid fluidized separation component is processed. The same parts as those in the above examples will not be repeated, and the difference lies in the solid particles 4.

[0093] The particle size range of the solid particles 4 is 0.5 mm to 2.0 mm, the bulk density is 600 kg / m³ to 750 kg / m³, the specific surface area is 500 m² / g to 800 m² / g, the surface has a super-hydrophobic layer, and the contact angle is ≥120°.

[0094] In this example, the MXene-LiCl@PAM-CS of the solid particles 4 is processed with MXene as the photothermal conversion material, LiCl as the hygroscopic salt, and polyacrylamide-chitosan (PAM-CS) gel network as the supporting material, and is specifically prepared by the following method.

[0095] 1. Preparation of particle raw materials The preparation of the granular material refers to the prior art Chinese patent application 202211603484X (publication number CN115975262A) to obtain a solar-driven high-strength atmospheric water collection composite material as the particle raw material.

[0096] 2. Particle forming The particle raw materials are granulated to obtain formed granular materials.

[0097] The particle raw materials are embrittled in liquid nitrogen and then mechanically crushed. The coarse particles (particle size 1 mm to 5 mm) are obtained by screening. The coarse particles are crushed into powder (particle size 100 μm to 500 μm) by a jet mill, and are mixed with water and a binder (specifically hydroxypropyl methyl cellulose in this example) to form a slurry (solid content 30% to 40%). The slurry is extruded and rounded into spherical particles (particle size 0.5 mm to 2 mm).

[0098] 3. Post-treatment of the formed granular materials The formed granular materials are soaked in 1% PTFE dispersion (10 min), heat-treated at 80 °C for 30 min, taken out and naturally cooled to room temperature (about 25 °C). The residual PTFE dispersion on the surface is drained to form a surface super-hydrophobic coating, and the finished solid particles are obtained by vibrating screening (aperture 0.5 mm to 2 mm).

[0099] The control standards for the finished solid particles meet the aforementioned particle size, bulk density, specific surface area, surface hydrophobic modification, and contact angle indicators.

[0100] Example Eight

[0101] A gas-liquid fluidized separation component is processed. The same parts as in the above examples will not be repeated. The differences are that it further includes a monitoring sensor 6.

[0102] An air flow sensor 61 monitors the gas flow rate at the air inlet 114.

[0103] A gas humidity sensor 62 monitors the humidity of the air flow at the exhaust port 115.

[0104] A distance sensor 63 monitors the position of the solid particles 4 in the fluidized bed 11 and the length of the separation chamber 112. Specifically, it can be set at the height of the feed door 12.

[0105] A displacement sensor 64 monitors the sedimentation rate of the solid particles 4 in the separation chamber 112. Specifically, it can be set on the vertical wall of the separation chamber 112 in a network array.

[0106] A pressure sensor 65 monitors the air flow pressure at the outlet of the air flow equalizing part 13, the air pressures at the upper and lower ends of the separation chamber 112, and the internal pressure of the separation chamber 112.

[0107] A temperature sensor 66 monitors the surface temperature of the solid particles 4 on the screen surface of the vibrating screen 24.

[0108] A solid humidity sensor 67 monitors the humidity of the solid particles 4 at the end section screen surface 241b.

[0109] Example Nine As Figures 12 to 13 shown, a gas-liquid fluidized separation device is processed, which is realized by using the gas-liquid fluidized separation component provided in Example Eight.

[0110] Figure 12 is a schematic structural diagram of the gas-liquid fluidized separation device. (a) shows the oblique side view, (b) shows the front end, and (c) shows the rear end; Figure 13 is a schematic structural diagram of the air flow transportation unit.

[0111] The gas-liquid fluidized separation device is connected to an air flow transportation unit 7 before the gas-liquid fluidized separation component, which is used to guide the gas to be separated into the fluidized bed 1 and implement regulation on the gas to be separated entering the fluidized bed 1 by using component combination.

[0112] The air flow transportation unit 7 is connected to the front end of the air inlet 114. The front end of the air flow transportation unit 7 is a centrifugal fan 71, and the rear end is an axial flow fan 72. The axial flow fan 72 is connected to the air inlet 114.

[0113] The gas-liquid fluidization separation device is also designed to be mobile, including a mobile unit 8. The mobile unit 8 includes a vehicle body 81 and a driving control unit 82, and the driving control unit 82 controls the driving of the vehicle body 81. The driving control unit 82 includes an automatic driving module to complete driving path planning and driving scheduling.

[0114] Compared with the existing gas-liquid fluidization separation products, the most prominent feature of the present invention is that due to the improvement of the material of the solid particles 4, the desorption and activity recovery processes of the solid particles 4 are extremely simplified and energy-consuming, the structure is simple and compact, and the entire product can complete the regeneration and recycling of the solid particles 4 in situ. Therefore, the usage scenarios of the gas-liquid fluidization separation device are greatly expanded. By adding a mobile unit 8 and configuring an automatic driving module in the driving control unit 82, the adaptive performance of the device in different working environments can be improved.

[0115] Figure 12 The vehicle body 81 of the shown gas-liquid fluidization separation device is juxtaposed with three groups of gas-liquid fluidization separation components. The angle of the centrifugal fan 71 port of each component can be adjusted and faces different directions, which is convenient for connecting to the front-end equipment. The three groups of components can operate in turn to ensure that the gas to be separated can be continuously subjected to gas-liquid separation.

[0116] To improve the stability of the gas-liquid fluidization separation device in connecting the front and rear equipment when the three groups of components operate in turn, a gas path tee can be added before the three gas transportation units 7. The gas path tee has a single intake path and three outlet branch paths, and there is a gas diversion valve / door inside. After the gas to be separated enters the gas path tee from the front single intake path, it can enter any gas transportation unit 7 and gas-liquid fluidization separation component according to the operating state of the rear separation component for separation. Similarly, a reverse gas path tee can also be added after the exhaust ports 115 of the three groups of components. Thus, the function of multi-component operation in turn and connecting fluidization separation can be maximally exerted without adjusting the gas path connection at the front and rear ends of the gas-liquid fluidization separation device.

[0117] It should be noted that the gas-liquid fluidization separation device can be realized according to the function design by using any gas-liquid fluidization separation component provided in Embodiments 1 to 7. And the mobile design is not necessary for the gas-liquid fluidization separation device. In this example, the mobile unit 8 is added to centrally describe the technical advantages of the assembly under the condition of saving space.

[0118] Embodiment 10 As Figure 14 shown, a gas-liquid fluidization separation system is designed and realized by using the gas-liquid fluidization separation device provided in Embodiment 9. The gas-liquid fluidization separation system includes an intelligent control system, and the intelligent control system regulates the operation of the components of the gas-liquid fluidization separation system and the gas-liquid fluidization process.

[0119] 1. Structure of the intelligent control system Figure 14It is a schematic diagram of the intelligent control system structure.

[0120] The intelligent control system includes a central control unit 100, which connects and coordinates each functional module. Each functional module includes a data acquisition module 200, a fluidization regulation module 300, a circulation regulation module 400, a regeneration regulation module 500, a fault diagnosis module 600, and a movement control module 800.

[0121] The central control unit 100 uses the data transmitted by the data acquisition module 200 to perform operations and generate regulation instructions, including fluidization regulation instructions, circulation regulation instructions, and regeneration control instructions. The regulation instructions coordinate the gas-liquid fluidization separation process.

[0122] The data acquisition module 200 collects the monitoring data of each sensor in real time and transmits it to the central control unit 100; the data acquisition module 200 includes a fluidization data acquisition module 210 and a regeneration data acquisition module 220; the fluidization data acquisition module 210 is connected to each monitoring sensor in the fluidized bed 1 to read the state data of the fluidized bed 1; the regeneration data acquisition module 220 is connected to each monitoring sensor in the particle regeneration unit 2 to read the regeneration state data.

[0123] The fluidization regulation module 300 is connected to a centrifugal fan 71, an axial flow fan 72, a separation chamber 112 length adjustment mechanism, a feed door 12, and an air flow equalizing member 13; it adjusts the feed, air intake of the fluidized bed 1, and the length of the separation chamber 112 according to the fluidization regulation instructions of the central control unit 100.

[0124] The circulation regulation module 400 is connected to a feeding mechanism 31, a channel gate between the fluidized bed 1 and the particle regeneration unit 2, and a channel gate between the particle regeneration unit 2 and the particle transfer unit 3; it controls the conveying timing of the solid particles 4 in the system according to the circulation regulation instructions of the central control unit 100.

[0125] The regeneration regulation module 500 is connected to a vibrating screen 24 and a desorption light source 25, and adjusts the illumination condition of the desorption light source 25 and the vibration condition of the vibrating screen 24 according to the regeneration regulation instructions of the central control unit 100.

[0126] The fault diagnosis module 600 is connected to the monitoring sensor 6 in the system, triggers a protection program according to the identified abnormal state, and transmits the abnormal state information to the central control unit 100.

[0127] The movement control module 800 is connected to a travel control unit 82, plans a movement path according to the travel instructions of the central control unit 100, and feeds back position information.

[0128] 2. Coordination control of the intelligent control system Put the solid particles 4 into the feed bin 111 (if the system needs to run continuously, the solid particles 4 can be put into the storage bin 26 at the same time), and each monitoring sensor 6 operates. The data acquisition module 200 reads the real-time monitoring data.

[0129] Open the feed door 12 and put the solid particles 4 in the feed bin 111 into the separation bin 112 (the solid particles 4 in the storage bin 26 can be transported to the feed bin 111 for standby); the distance sensor 63 monitors the position of the solid particles 4 in the fluidization chamber 11 and the length of the separation bin 112.

[0130] Start the air transportation unit 7, open the air inlet 114, and guide the gas to be separated to enter the separation bin 112 through the air flow equalizing part 13 to suspend the solid particles 4; the air flow sensor 61 monitors the gas flow rate at the air inlet 114, and the air pressure sensor 66 monitors the air flow pressure at the outlet of the air flow equalizing part 13; the displacement sensor 64 monitors the sedimentation speed of the solid particles 4 in the separation bin 112, and the air pressure sensor 66 monitors the pressure in the separation bin 112.

[0131] When the environment in the separation bin 112 is stable (such as the void fraction is stable, the chamber pressure is stable, and the sedimentation speed of the solid particles 4 is stable), open the exhaust port 115. The gas humidity sensor 62 monitors the air flow humidity, and adjusts the length of the separation bin 112 according to the data changes of the two indicators of the exhaust humidity and the void fraction of the separation bin 112. If the exhaust humidity is too high or the void fraction is too low, increase the length of the separation bin 112, and vice versa. At the same time, adjust the air flow state entering the separation bin 112 as needed to jointly maintain the stability of the environment in the chamber. When the monitored indicators meet the separation condition group, it officially enters the gas-liquid separation working state. The separation condition group includes: the intake air speed v at the air inlet 114 ≥ 1.2 times the minimum fluidization speed, the sedimentation speed V of the solid particles < 0.1 m / s, the chamber pressure P in the separation bin 112 ∈ [-50, 50] Pa, and the void fraction of the separation bin 112 is 0.75 - 0.85.

[0132] Void fraction ε Calculate according to Equation 2 using the monitoring data of the air pressure sensors 66 at the top and bottom of the separation bin 112. Among them, ΔP - the pressure difference between the upper and lower ends of the separation bin 112 (Pa), L - the length of the separation bin (m), ρ p - the density of the solid particles (kg / m³), ρ g - the density of the gas to be separated (kg / m³), g - the gravitational acceleration constant (m / s²).

[0133] Equation 2 During the fluidized separation process, when the monitoring indicators show that the particle moisture absorption efficiency decreases (such as the gas humidity H at the exhaust port 115 > 30% and lasts for more than 2 minutes) or the fluidization performance deteriorates (such as the sedimentation velocity V of the solid particles 4 ≥ 0.1 m / s and adjusting the intake air velocity is ineffective), it indicates that the solid particles 4 have reached the moisture absorption saturation state and regeneration should be carried out; close the exhaust port 115, reduce the air flow velocity of the air flow conveying unit 7, so that the solid particles 4 gradually settle to the bottom of the separation chamber 112. When the solid particles 4 reach the bottom of the chamber, open the channel between the separation chamber 112 and the discharge chamber 113, so that the saturated solid particles 4 enter the discharge chamber 113, and close the channel between the separation chamber 112 and the discharge chamber 113. If continuous separation is carried out, the feed door 12 can be opened, and the solid particles 4 in the feed bin 111 are put into the separation chamber 112, and adjusted again to meet the separation condition group, and the gas-liquid separation is continued.

[0134] Open the channel gate between the fluidized bed 1 and the particle regeneration unit 2, put the solid particles 4 in the discharge chamber 113 onto the first-stage screen surface 241a of the vibrating screen 24, and close the gate. Turn on and adjust the desorption light source 25 (such as the light intensity of 300 W / m² and the preheating irradiation time of 5 minutes), start the vibration of the first-stage screen surface 241a, the temperature sensor 67 monitors the surface temperature of the solid particles 4 on the screen surface, and start the vibration of each stage of the screen surface 241 in turn and monitor the surface temperature of the solid particles 4; when the solid particles 4 enter the last-stage screen surface 241b, the solid humidity sensor 65 monitors the humidity of the solid particles 4 on the screen surface. If the humidity is higher than the preset standard, continue the light desorption. Until the solid particles 4 are desorbed qualified (such as the particle humidity reaches the preset standard, the desorption efficiency converted from the particle humidity ≥ 95%), open the outlet of the last-stage screen surface 241b, and the solid particles 4 are sent into the storage box 26; the solid particles 4 in the storage box 26 are temporarily stored, or directly sent into the feed bin 111 by the particle conveying unit 3.

[0135] During the separation process, the fault diagnosis module 600 reads the monitoring data of each monitoring sensor 6, identifies whether an abnormal state occurs according to the preset conditions, triggers the protection program if an abnormal state occurs, and transmits the abnormal state information to the central control unit 100. The abnormal states mainly include at least one of the abnormal air flow stability of the fluidized bed 1 (such as the gas flow velocity fluctuation > 10%), the abnormal environmental stability in the separation chamber 112 (such as the particle distribution deviation > 15%, and the particle distribution characteristics are analyzed by the position data of the solid particles 4 in the fluidized bed 11 monitored by the distance sensor 63, which characterizes whether the solid particles 4 have local accumulation or uneven distribution), the abnormal environmental balance in the light chamber 21b (such as the uneven surface temperature of the solid particles 4), etc. For the gas-liquid fluidized separation system with multiple groups of gas-liquid fluidized separation components mounted in parallel, according to the separation requirements of the gas to be separated, each group can operate simultaneously or separately one after another. The core content of its coordination method is the same as the operation principle of a single component, which will not be elaborated here.

[0136] It should be noted that the gas-liquid fluidized separation device may not be equipped with the moving unit 8. Correspondingly, the gas-liquid fluidized separation system may omit the moving control module 800.

[0137] Example XI Design a gas-liquid fluidized separation system. The same parts as in Example X are not repeated here, and the differences are that it further includes backflush control.

[0138] For the working conditions with a relatively long continuous operation time of fluidized separation, backflush control is further increased.

[0139] The intelligent control system further includes a backflush control module 700. The backflush control module 700 is connected to the backflush component 14 and the air flow equalizing component 13, and adjusts the opening and closing of the air flow equalizing component 13 and the backflush program of the backflush component 14 according to the backflush regulation instruction of the central control unit 100.

[0140] The central control unit 100 uses the data transmitted by the data acquisition module 200 to perform operations and generate regulation instructions, which also include backflush control instructions.

[0141] During the fluidized separation process, the central control unit 100 calculates the backflush score according to Equation 1 based on the monitoring data S , where H -The humidity of the gas at the exhaust port 115 (%); H TH -The designed threshold value of the exhaust humidity (%); V-The sedimentation velocity of the solid particles 4 (m / s). When S >0.4, the central control unit 100 generates a backflush control instruction.

[0142] The backflush score S The relationship with the backflush control instruction can also be refined according to Table 1.

[0143] Table 1 Backflush instruction control strategy

[0144] When performing backflush control, the suction nozzle 141 of the backflush component 14 is started to suck air; calculate whether the current opening degree of the window fan 1322 meets the requirement for the solid particles 4 to be blown out. If not, gradually increase the opening angle of the window fan 1322 and at the same time increase the inlet air flow rate; after the window fan 1322 is adjusted, close the exhaust port 115, retract the movable grille 134, the nozzle 142 is pressurized for jet flushing, the movable grille 134 is unfolded, and a new backflush score S is calculated. After the backflush is completed, each component is reset as needed. It can be understood that the dynamic stability of the environment in the bin must be monitored and maintained during the backflush process.

Claims

1. Gas-liquid fluidized separation component, characterized in that: It includes a loop composed of a fluidized bed (1), a particle regeneration unit (2), and a particle transfer unit (3) connected in sequence before and after, as well as solid particles (4) and a power unit (5). The particle regeneration unit (2) and the particle transfer unit (3) are respectively connected to the bottom and top of the fluidized bed (1), and there are channel gates between the fluidized bed (1), the particle regeneration unit (2), and the particle transfer unit (3); The main body of the fluidized bed (1) is a fluidization box (11). The fluidization box (11) is a vertical box body, which is divided into upper, middle, and lower three compartments by a feed door (12) and an air flow equalizing part (13), namely a feed compartment (111), a separation compartment (112), and a discharge compartment (113). The length of the separation compartment (112) is adjustable. The discharge compartment (113) is connected to the particle regeneration unit (2), and the feed compartment (111) is connected to the particle transfer unit (3). Air inlets (114) and exhaust ports (115) are respectively opened on the box walls of the discharge compartment (113) and the feed compartment (111). The pore diameter of the gas channels of the air flow equalizing part (13) is smaller than the particle diameter of the solid particles (4); The main body of the particle regeneration unit (2) is the desorption box (21). The bottom of the desorption box (21) is fixedly installed through a vibration damping seat (22). There is a water collecting plate (23) inside the desorption box (21). The water collecting plate (23) is fixedly connected to the inner wall of the desorption box (21) and forms a water collecting bin (21a) with the bottom of the desorption box (21). The water collecting plate (23) is provided with water collecting holes (231) and has a drainage slope towards the water collecting holes (231). There is a drain port cover (232) on the water collecting holes (231); above the water collecting bin (21a) is the light irradiation bin (21b). There is a vibrating screen (24) inside the light irradiation bin (21b). The vibrating screen (24) is an independent vibration structure with multiple sections of screen surfaces (241). The rear end of the last section of the screen surface (241b) is connected to a storage box (26). The storage box (26) is connected to the particle conveying unit (3); the continuous line of the screen surface of the vibrating screen (24) l is higher at the front end than at the rear end and has a slope α , and the vibration conditions of the screen surface gradually change from high frequency and low amplitude in the front section to low frequency and high amplitude in the rear section as a whole; there is a desorption light source (25) above the vibrating screen (24). The irradiation area of the desorption light source (25) is on the screen surface of the vibrating screen (24); a hose (27) connects the discharge bin (113) and the desorption box (21) and opens to the first section of the screen surface (241a). The water collecting bin (21a) has a drain hole; The particle transfer unit (3) includes a feeding mechanism (31) and an external closed pipeline (32). The feeding mechanism (31) is connected to a storage box (26) and the feed compartment (111); The solid particles (4) are photosensitive silica gel particles, and the particle diameter is larger than the pore diameter of the sieve surface (241). The photosensitive silica gel particles are particles with a photothermal conversion material and a hygroscopic salt composition as functional components and a gel network as a support material; The power unit (5) includes a power supply unit and a control circuit to supply energy to energy-consuming components.

2. The gas-liquid fluidized separation component according to claim 1, characterized in that: The main body of the air flow equalizing part (13) is a plate-like structure. A frame (131) is connected to the fluidization box (11). Windows (132) are arrayed in the frame (131). The windows (132) are fixedly connected to the frame (131) and / or adjacent windows (132) through window frames (1321). A switchable window sash (1322) is fixed in the window frame (1321). A window control component (133) controls the opening and closing angles of each window sash (1322); A movable grille (134) is connected to the downwind side of the frame (131). The pore diameter of the movable grille (134) is smaller than the particle diameter of the solid particles (4); The movable grille (134) is a switchable structure. When opened, it covers the windows (132), and when retracted, it reveals the windows (132).

3. The gas-liquid fluidization separation component according to claim 2, wherein: The slope of the vibrating screen (24) α = 8° to 12°, the vibration frequency of the screen surface (241) is 15 Hz to 40 Hz, the amplitude is 1 mm to 5 mm, and it vibrates with segmented frequency division; The particle diameter range of the solid particles (4) is 0.5 mm - 2 mm, the bulk density is 600 kg / m³ - 750 kg / m³, the specific surface area is 500 m² / g - 800 m² / g, and there is a superhydrophobic layer on the surface with a contact angle ≥ 120°; Preparation of the solid particles (4): First, prepare the particle raw materials, then embrittle the particle raw materials in liquid nitrogen and mechanically crush them into powders, mix them with water and a binder to form a slurry, extrude and round to obtain formed particle materials. The formed particle materials are soaked in a 1% PTFE dispersion liquid and heat-treated at 80°C, taken out and naturally cooled, and then the residual PTFE dispersion liquid on the surface is drained to form a superhydrophobic coating on the surface, and the finished solid particles (4) are obtained through vibrating screening; The surface of the component in contact with the gas-liquid fluidization separation component and the solid particles (4) has an anti-sticking coating or a nano-hydrophobic coating.

4. The gas-liquid fluidized separation component according to claim 3, wherein: The position of the air flow equalizing part (13) can be moved axially along the fluidization tank (11), dynamically separating the separation chamber (112) from the discharge chamber (113), and realizing the adjustment of the length of the separation chamber (112).

5. The gas-liquid fluidized separation component according to claim 4, wherein: It also includes a monitoring sensor (6), including: an air flow sensor (61) for monitoring the gas flow rate at the air inlet (114), a gas humidity sensor (62) for monitoring the air flow humidity at the exhaust port (115), a distance sensor (63) for monitoring the position of the solid particles (4) in the fluidization tank (11) and the length of the separation chamber (112), a displacement sensor (64) for monitoring the sedimentation speed of the solid particles (4) in the separation chamber (112), a gas pressure sensor (65) for monitoring the air flow pressure at the outlet of the air flow equalizing part (13), the gas pressures at the upper and lower ends of the separation chamber (112), and the internal pressure of the separation chamber (112), and a temperature sensor (66) for monitoring the surface temperature of the solid particles (4) on the screen surface of the vibrating screen (24), and a solid humidity sensor (67) for monitoring the humidity of the solid particles (4) at the end section of the screen surface (241b).

6. Gas-liquid fluidization separation device, characterized in that: It is realized by using the gas-liquid fluidization separation component described in claim 5. The air flow conveying unit (7) is connected to the front end of the air inlet (114). The front end of the air flow conveying unit (7) is a centrifugal fan (71), and the rear end is an axial flow fan (72). The axial flow fan (72) is connected to the air inlet (114).

7. A gas-liquid fluidized separation system, characterized in that: It is realized by using the gas-liquid fluidization separation device described in claim 6; it also includes an intelligent control system, and the intelligent control system includes: The central control unit (100) uses the data acquisition module (200) to transmit data and perform operations to generate control instructions to coordinate the gas-liquid fluidization separation process. The control instructions include fluidization control instructions, circulation control instructions, and regeneration control instructions; The data acquisition module (200) collects the monitoring data of the monitoring sensor (6) and transmits it to the central control unit (100); the data acquisition module (200) includes a fluidization data acquisition module (210) and a regeneration data acquisition module (220); the fluidization data acquisition module (210) is connected to each monitoring sensor in the fluidized bed (1) to read the state data of the fluidized bed (1); the regeneration data acquisition module (220) is connected to each monitoring sensor in the particle regeneration unit (2) to read the regeneration state data; The fluidization control module (300) is connected to the centrifugal fan (71), the axial flow fan (72), the length adjustment mechanism of the separation chamber (112), the feed door (12), and the air flow equalizing part (13); according to the fluidization control instructions of the central control unit (100), it adjusts the air intake and feeding of the fluidized bed (1), and the length of the separation chamber (112); The circulation control module (400) is connected to the feeding mechanism (31), the channel gate between the fluidized bed (1) and the particle regeneration unit (2), and the channel gate between the particle regeneration unit (2) and the particle conveying unit (3); according to the circulation control instructions of the central control unit (100), it controls the conveying timing of the solid particles (4) in the system; The regeneration control module (500) is connected to the vibrating screen (24) and the desorption light source (25), and adjusts the illumination condition of the desorption light source (25) and the vibration condition of the vibrating screen (24) according to the regeneration control instruction of the central control unit (100). The fault diagnosis module (600) is connected to the monitoring sensor (6), triggers a protection program according to the identified abnormal state, and transmits the abnormal state information to the central control unit (100).

8. The gas-liquid fluidized separation system according to claim 7, wherein: The fluidized separation operation control is as follows: Open the feed door (12), put the solid particles (4) in the feed bin (111) into the separation bin (112), start the air flow conveying unit (7), open the air inlet (114), guide the gas to be separated through the air flow equalizing part (13) into the separation bin (112) to suspend the solid particles (4), and the monitoring sensor (6) in the fluidized bed (1) reads the data. When the environment in the separation bin (112) is stable, open the exhaust port (115), adjust the length of the separation bin (112) according to the exhaust humidity and the void fraction of the separation bin (112), and at the same time adjust the air flow state entering the bin of the separation bin (112) as needed to jointly maintain the stability of the environment in the bin. When the monitoring indicators meet the separation condition group, it officially enters the gas-liquid separation working state. The separation condition group includes: the intake air speed v at the air inlet (114) ≥ 1.2 times the minimum fluidization speed, the solid particle sedimentation speed < 0.1 m / s, the chamber pressure P of the separation bin (112) ∈ [-50, 50] Pa, and the void fraction of the separation bin (112) is 0.75 - 0.

85. During the fluidized separation process, when the monitoring indicators show that the particle moisture absorption efficiency decreases or the fluidization performance deteriorates, close the exhaust port (115), reduce the air flow speed of the air flow conveying unit (7), wait for the solid particles (4) to settle to the bottom of the separation bin (112), open the channel between the separation bin (112) and the discharge bin (113) to make the moisture-absorbed solid particles (4) enter the discharge bin (113), and close the channel between the separation bin (112) and the discharge bin (113). Open the channel gate between the fluidized bed (1) and the particle regeneration unit (2), put the solid particles (4) in the discharge bin (113) onto the first-stage screen surface (241a) of the vibrating screen (24), and close the gate. Turn on and adjust the desorption light source (25), the monitoring sensor (6) in the particle regeneration unit (2) reads the data, and start the vibration of the screen surface (241); when the solid particles (4) enter the last-stage screen surface (241b), the solid humidity sensor (665) monitors the humidity of the solid particles (4) on the screen; when the solid particles (4) are qualified for desorption, open the outlet of the last-stage screen surface (241b), and the solid particles (4) are sent into the storage bin (26); the solid particles (4) in the storage bin (26) are temporarily stored, or directly sent into the feed bin (111) by the particle conveying unit (3). During the fluidized separation operation process, the fault diagnosis module (600) monitors and identifies abnormal states.

9. The gas-liquid fluidized separation system according to claim 8, wherein: An anti-blowing component (14) is arranged in the fluidization box (11). The anti-blowing component (14) leads the gas near the exhaust port (115) at the top of the fluidization box (11) to the bottom near the air flow equalizing component (13) of the separation chamber (112), and a high-frequency and rapid scouring air flow is jetted downward to the center by a nozzle (142) controlled to be opened. The intelligent control system includes an anti-blowing control module (700). The anti-blowing control module (700) is connected to the anti-blowing component (14) and the air flow equalizing component (13), and adjusts the opening and closing of the air flow equalizing component (13) and the anti-blowing program of the anti-blowing component (14) according to the anti-blowing regulation instruction of the central control unit (100). The regulation instruction generated by the operation of the central control unit (100) further includes an anti-blowing control instruction. During the fluidization separation process, the central control unit (100) calculates the backflush score according to Equation 1 based on the monitoring data S , when S > 0.4, the central control unit (100) generates a backflush control instruction; Formula 1 In the formula, H - Humidity of the gas at the exhaust port (115), % H TH - Design threshold of the exhaust humidity, %; V - Settling velocity of the solid particles (4), m / s.

10. The gas-liquid fluidized separation system according to any one of claims 7 to 9, characterized in that: The gas-liquid fluidization separation device further includes a moving unit (8). The moving unit (8) includes a vehicle body (81) and a driving control unit (82). The driving control unit (82) controls the driving of the vehicle body (81). The driving control unit (82) includes an automatic driving module to complete the driving path planning and driving scheduling. The intelligent control system further includes a moving control module (800). The moving control module (800) is connected to the driving control unit (82), plans the moving path according to the driving instruction of the central control unit (100) and feeds back the position information.

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