Gas-liquid fluidized separation components, devices and systems

Abstract

The present invention discloses a gas-liquid fluidized separation component, device and system, which belongs to the field of gas separation technology combining fluidization and motion adsorption. In order to solve the defects of the existing technology in that the recovery process is long and the energy consumption is high, the gas-liquid fluidized separation component of the present invention includes: a three-chamber fluidized bed, in which the solid particles are in a fluidized state to adsorb and separate water molecules; after absorbing water, the particles are subjected to segmented and frequency-divided vibration under light in the regeneration unit to achieve desorption and regeneration; and then the particles are sent to the fluidized bed by the particle conveying unit for recycling. The optimization scheme includes monitoring sensors, gas equalizers, backflush control, particle preparation, etc. The separation device is additionally provided with an airflow conveying unit. The separation system introduces an intelligent control system, which uses monitoring data calculation to generate control instructions to coordinate gas-liquid fluidized separation. The technology combines the main technologies of the photosensitivity of gel materials, solid particle structure, fluidized bed, and segmented multi-frequency vibration, and uses full-surface contact under suspended flow to achieve efficient separation and regeneration. It is a low-energy, recyclable continuous fluidized gas-liquid separation solution.

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, belonging to the field of gas separation technology combining fluidization with kinematic adsorption. Background Art

[0002] Gas-liquid separation is the process of removing tiny liquid droplets from gases. It is a widely used gas-liquid separation technology in the chemical, industrial, and environmental protection fields. For industrial production systems, the performance and efficiency of gas-liquid separation technology directly impact process reliability. For specific workplaces, the efficiency of mist separation in the workspace directly affects operational safety. Furthermore, for air quality, if liquid droplets are not completely removed from industrial exhaust gases and accumulate to high concentrations, they are prone to fusion and agglomeration with similarly sized acid particles, contributing to the formation of smog.

[0003] 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 demister medium, a water tank, a nozzle, a rotor flowmeter, a frequency converter, and an air inlet duct. The fluidized demister shell is designed with an upper opening larger than the lower opening, and multiple layers of sieve plates are installed inside the shell. The fan's airflow carries droplets from the nozzle through the sieve plates and enters the demister medium. Under the action of the rising airflow, the demister medium enters a stable fluidized state. At the same time, the rising airflow encounters the fluidized demister medium. Under the action of inertia and deflection, the airflow direction shifts, and the droplets carried in the airflow are continuously adsorbed, condensed, and intercepted by the surface of the demister medium. After the demister medium removes the droplets and solid particles, the airflow is discharged from the airflow channel at the top of the demister, thus completing the fluidized demister.

[0004] The above technical solution uses traditional fluidization technology, that is, the demisting medium is hollow or solid solid particles. The demisting medium after fluidized bed drying needs to be matched with specific subsequent processing processes, such as regeneration and cleaning, re-drying and screening, mechanical strength recovery, surface modification, etc. Therefore, it has the inherent defects of traditional solid particle fluidization technology, mainly including: First, in order to meet the fluidization speed, the demisting medium processing has specific process requirements, and there are obvious losses in the drying and recovery processes, which increases the total cost of equipment operation; second, the subsequent processing cycle of the demisting medium is long and there are many steps, which makes the particle regeneration have a time threshold, limiting the continuous operation of the equipment. Third, the process and cycle of the subsequent processing 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 rely on batteries for long-term or periodic operation, which limits the expansion of equipment usage scenarios. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the existing technology and provide a gas-liquid separation technology solution based on the principle of fluidized bed adsorption technology.

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

[0007] A gas-liquid fluidized separation assembly comprises a circuit consisting of a fluidized bed, a particle regeneration unit, and a particle transfer unit connected in series, as well as solid particles and a power unit. The particle regeneration unit and the particle transfer unit are connected to the bottom and top of the fluidized bed, respectively. A channel gate is provided between the fluidized bed, the particle regeneration unit, and the particle transfer unit.

[0008] The main body of the fluidized bed is a fluidizing box, which is a vertical box body. It is divided into three compartments, namely the upper, middle and lower compartments, by a feed door and an air flow divider. They are the feed compartment, the separation compartment and the 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 conveying unit. The discharge compartment and the feed compartment are respectively provided with an air inlet and an exhaust port on the wall. The gas channel aperture of the air flow divider is smaller than the particle size of the solid particles.

[0009] The main body of the particle regeneration unit is a desorption box, the bottom of which is fixedly installed through a vibration damping seat. There is a water collecting plate in the desorption box, which is fixedly connected to the inner wall of the desorption box and forms a water collecting bin with the bottom of the desorption box. The water collecting plate has a water collecting hole and a drainage slope toward the water collecting hole, and there is a cover on the water collecting hole; above the water collecting bin is an illumination bin, and inside the illumination bin is a vibrating screen, which is a multi-section screen with independent vibration structure, and the rear end of the last section of the screen is connected to the storage box, which is connected to the particle conveying unit; the vibrating screen screen is continuous line l The front end is higher than the rear end and is sloped α The overall vibration condition of the screen surface changes gradually from high frequency and low amplitude in the front section to low frequency and high amplitude in the back section; there is a desorption light source above the vibrating screen, and the irradiation area of ​​the desorption light source is on the vibrating screen surface; the hose connects the discharge bin and the desorption box, and opens to the first section of the screen surface, and the water collection bin has a drainage hole;

[0010] The particle conveying unit includes a feeding mechanism and an external closed pipeline, wherein the feeding mechanism connects the storage box and the feed bin;

[0011] The solid particles are photosensitive silica gel particles, the particle size of which is larger than the sieve aperture of the sieve surface, and 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 supporting material;

[0012] The power unit includes a power supply unit and a control circuit, which provide energy for energy-consuming components.

[0013] The core concept of the above-mentioned gas-liquid fluidized separation component of the present invention is to utilize the water molecule adsorption capacity and light desorption performance of the photosensitive silica gel material to achieve high-efficiency gas-liquid separation with high reproducibility, continuous operation, and low energy consumption. First, by processing the photosensitive silica gel into a granular material, the relative surface area of ​​the adsorption material is maximized when it is utilized; secondly, the fluidized bed technology is introduced to suspend and move the adsorption material particles, forming a working state of full-surface contact adsorption. At the same time, the long-axis shape characteristics of the fluidized bed are utilized to form an adsorption path, giving full play to the advantages of full-surface contact adsorption; finally, the regeneration process of the recovered solid particles, when jumping forward on the vibrating screen surface, also utilizes the granular shape characteristics, and rotates while jumping forward, so that the entire surface is exposed to light, and efficiently desorbs and regenerates. The gas-liquid fluidized separation component can achieve efficient, energy-saving and environmentally friendly gas-liquid separation and material regeneration and recycling in the product in situ.

[0014] The present invention further optimizes the above-mentioned gas-liquid fluidized separation component. The following optimization schemes can be implemented separately or simultaneously without conflict.

[0015] Optimization 1: The length of the separation chamber is adjustable.

[0016] The length of the separation chamber can be adjusted, thereby changing the volume of the fluidization space and the length of the fluidization path, and adjusting the fluidization and separation conditions. Specifically, the airflow divider can be moved along the axial direction of the fluidization box, dynamically separating the separation chamber from the discharge chamber, and achieving the adjustment of the separation chamber length.

[0017] Optimization 2: Optimization of the airflow distribution component.

[0018] The main body of the air flow distributor is a plate-like structure, the frame is connected to the fluidization box, and there are array windows in the frame. The windows are fixedly connected to the frame and / or adjacent windows through the window frame. The window sashes that can be opened and closed are fixed in the window frame, and the window control assembly controls the opening and closing angles of each window sash; the movable grille is connected to the leeward side of the frame, and the aperture of the movable grille is smaller than the particle size of solid particles; the movable grille is an openable and closable structure. When opened, it covers the window, disperses the airflow and prevents solid particles from falling; when folded, it exposes the window to allow solid particles to pass through.

[0019] Optimization three: optimization of the vibrating screen structure.

[0020] Vibrating screen slope α =8°~12°, screen surface vibration frequency 15 Hz~40 Hz, amplitude 1 mm~5 mm, segmented and frequency-divided vibration.

[0021] Optimization four: Optimization of solid particles.

[0022] The particle size of the solid particles ranges from 0.5 mm to 2 mm, the bulk density is 600 kg / m³ to 750 kg / m³, the specific surface area is 500 m² / g to 800 m² / g, there is a super hydrophobic layer on the surface, and the contact angle is ≥120°.

[0023] Preparation of solid particles: First, prepare the particle raw material, then embrittle the particle raw material in liquid nitrogen and mechanically crush it into powder, mix it with water and binder to form a slurry, and squeeze it into a round shape to obtain a shaped particle material. The shaped particle material is soaked in 1% PTFE dispersion and heat-treated at 80℃. After being taken out and naturally cooled, the residual PTFE dispersion on the surface is drained to form a super-hydrophobic coating on the surface. The finished solid particles are obtained by vibration screening.

[0024] Optimization five: adding monitoring sensors.

[0025] The monitoring sensors include: air flow sensor to monitor the gas flow rate at the air inlet, gas humidity sensor to monitor the air flow humidity at the exhaust port, distance sensor to monitor the position of solid particles in the fluidized box and the length of the separation bin, displacement sensor to monitor the settling velocity of solid particles in the separation bin, air pressure sensor to monitor the air flow pressure at the air flow equalizer, the air pressure at the upper and lower ends of the separation bin, and the pressure inside the separation bin, temperature sensor to monitor the surface temperature of solid particles on the vibrating screen surface, and solid humidity sensor to monitor the humidity of solid particles at the last section of the screen surface.

[0026] Utilizing the above-mentioned 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.

[0027] A gas-liquid fluidization separation device: implemented using the above-mentioned gas-liquid fluidization separation component, the airflow transport unit is connected to the front end of the air inlet, the front end of the airflow transport unit is a centrifugal fan, the rear end is an axial flow fan, and the axial flow fan is connected to the air inlet.

[0028] The gas-liquid fluidized separation device of the present invention is connected to the air flow conveying unit, thereby enhancing the air intake performance of the gas-liquid fluidized separation component, thereby improving both accessibility and independence during the gas-liquid separation operation.

[0029] Utilizing the above-mentioned 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.

[0030] A gas-liquid fluidized separation system: implemented using the above-mentioned gas-liquid fluidized separation device; also includes an intelligent control system, the intelligent control system includes:

[0031] The central control unit uses the data acquisition module to transmit data, perform calculations, and 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.

[0032] The data acquisition module collects monitoring data from 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 the monitoring sensors in the fluidized bed to read the fluidized bed status data. The regeneration data acquisition module is connected to the monitoring sensors in the particle regeneration unit to read the regeneration status data.

[0033] 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 fluidized bed air intake, feed, and separation chamber length according to the fluidization control instructions of the central control unit;

[0034] The circulation control module connects 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 sequence of solid particles in the system according to the circulation control instructions of the central control unit;

[0035] The regeneration control module is connected to the vibrating screen and the desorption light source, and adjusts the illumination 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;

[0036] The fault diagnosis module is connected to the monitoring sensor, triggers the protection program according to the abnormal state identified, and transmits the abnormal state information to the central control unit.

[0037] The gas-liquid fluidized separation system of the present invention realizes automated separation operations by cooperating with various modules of the intelligent control system and utilizing control instructions generated based on monitoring data to schedule the operating conditions of components.

[0038] The present invention further provides a fluidized separation operation control logic that can be adopted by the above-mentioned gas-liquid fluidized separation system, which is specifically as follows.

[0039] Open the feed door, put the solid particles in the feed bin into the separation bin, start the air flow conveying unit, open the air inlet, guide the gas to be separated through the air flow divider into the separation bin to suspend the solid particles, and read the data from the monitoring sensor in the fluidized bed;

[0040] When the environment in the separation chamber is stable, open the exhaust port and adjust the length of the separation chamber according to the exhaust humidity and the porosity of the separation chamber. At the same time, adjust the airflow into the separation chamber as needed to maintain a stable environment in the chamber.

[0041] When the monitored indicators meet the separation condition group, the gas-liquid separation working state is officially entered. The separation condition group includes: air inlet velocity v ≥ 1.2 times the minimum fluidization velocity, solid particle settling velocity < 0.1 m / s, separation chamber pressure P∈[−50,50] Pa, and separation chamber void ratio 0.75-0.85;

[0042] During the fluidized separation process, when the monitoring indicators show that the moisture absorption efficiency of the particles decreases or the fluidization performance deteriorates, close the exhaust port, reduce the air flow velocity of the air transport unit, wait for the solid particles to settle to the bottom of the separation bin, open the channel between the separation bin and the discharge bin to allow the moisture-absorbing solid particles to enter the discharge bin, and close the channel between the separation bin and the discharge bin;

[0043] Open the gate of the channel between the fluidized bed and the particle regeneration unit, put the solid particles in the discharge bin into the first screen section of the vibrating screen, and close the gate;

[0044] The desorption light source is turned on and adjusted, and the monitoring sensor in the particle regeneration unit reads data and starts the screen surface vibration; when the solid particles enter the final screen surface, the solid moisture sensor monitors the moisture content of the solid particles on the screen surface; when the solid particles are desorbed and qualified, the final screen surface outlet is opened and the solid particles are sent to the storage box; the solid particles in the storage box are temporarily stored, or directly sent to the feed bin by the particle conveying unit;

[0045] During the fluidized bed separation operation, the fault diagnosis module monitors and identifies abnormal conditions.

[0046] During prolonged separation operation in the aforementioned gas-liquid fluidized separation system, solid particles in the area near the airflow divider (i.e., upstream of the airflow) will initially absorb water molecules, increasing their weight and resulting in a lower suspension height. After a period of fluidized separation, the number of solid particles that absorb moisture and gain weight increases, leading to a tendency for these weighted particles to accumulate at the bottom of the separation chamber. While this does not affect gas-liquid separation, it can negatively impact the airflow divider, disrupt the fluidized state within the chamber, shorten the effective length of the fluidized separation path, reduce separation efficiency, and cause false alarms. To address this, the present invention provides an optimization solution that adds backflush control.

[0047] A backflush assembly is provided in the fluidized box, and the backflush assembly guides the gas near the exhaust port at the top of the fluidized box to the airflow divider near the bottom of the separation chamber, and a high-frequency rapid flushing airflow is sprayed toward the center below by a controlled opening nozzle. The intelligent control system includes a backflush control module, and the backflush control module is connected to the backflush assembly and the airflow divider, and adjusts the opening and closing of the airflow divider and the backflush program of the backflush assembly according to the backflush control instructions of the central control unit. The central control unit uses the data acquisition module to transmit data, execute calculations, and generate control instructions, including backflush control instructions. During the fluidized separation process, the central control unit calculates the backflush score according to Formula 1 based on the monitoring data. S ,when S When the value is >0.4, the central control unit generates a backflush control instruction.

[0048] Formula 1

[0049] Where, H - Exhaust gas humidity, % H TH- exhaust humidity design threshold, %, V - solid particle settling velocity, m / s.

[0050] Compared with the existing technology, the beneficial effects of the present invention are as follows: (1) The present invention provides a gas-liquid separation technology. This technology starts from the photosensitivity of gel materials, utilizes its efficient water absorption and dehydration properties to process it into solid particles, and then combines it with fluidized bed technology. By utilizing the technical characteristics of the solid particles in the fluidized bed in a suspended state, the entire surface of the solid particles can contact the gas, adsorb water molecules in the gas, and achieve efficient adsorption and separation. At the same time, compared with the conventional arrangement method of placing the adsorption material in a fixed position, the suspended full-surface contact adsorption improves the utilization efficiency of the adsorption material while enabling the adsorption particles to deform in equal proportions in all directions of the spherical shape during the process of moisture absorption and expansion, thereby maintaining the granular shape and uniform texture, and always meeting the material performance requirements required for the solid particles to be "fluidized" by the air flow in the fluidized bed, so that the fluidized adsorption condition can be sustained. In the light regeneration unit for the moisture-saturated solid particles, a vibration screen and light are combined, and the jumping forward motion generated by the solid particles on the vibration screen is utilized to enable the entire surface to receive light, thereby improving the desorption and water loss efficiency and achieving rapid regeneration of the adsorption material. The concept of the present invention organically combines the application technology of the photosensitivity of gel materials, fluidized bed separation technology, and adsorption separation technology, and is a new concept and technical concept of gas-liquid separation technology. (2) The technology of the present invention solves the defects of the existing technology of solid particle material drying and recovery, which has many steps, long cycle, and high loss, and realizes rapid gas-liquid separation and rapid material regeneration in the equipment, thereby making continuous gas-liquid separation possible. (3) The material properties of solid particle materials are one of the key technologies for the good performance of the product in the technical solution of the present invention. Based on the previous research data, the present invention provides solid particle performance control indicators. (4) The present invention also provides an operation control scheme for the fluidized separation system and key control conditions. (5) The product of the present invention has a simple design and compact structure, and has no safety restrictions such as high pressure and high temperature. It can also operate continuously in situ, so it can be processed into various specifications and sizes according to the needs of the working scene. At the same time, the present invention has low energy consumption and can be powered by batteries in specific working sites. Therefore, the technical solution of the present invention can fully meet the requirements of flexible layout of the working environment, which is impossible to achieve with the existing fluidized separation technology solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of the structure of the gas-liquid fluidized separation component.

[0052] Figure 2 It is a schematic diagram of the fluidized bed structure.

[0053] Figure 3 It is a schematic diagram of the particle regeneration unit structure.

[0054] Figure 4This is a schematic diagram of the internal structure of the particle regeneration unit, (a) shows the front side, and (b) shows the oblique side.

[0055] Figure 5 It is a schematic diagram of the structure and parameter meaning of the vibrating screen.

[0056] Figure 6 It is a schematic diagram of the structure of the particle conveying unit (showing the spiral feeding mechanism).

[0057] Figure 7 Schematic diagram of the separation chamber length adjustment structure, (a) nested box adjustment structure, (b) airflow equalizing component adjustment structure.

[0058] Figure 8 It is a schematic diagram of the backflush component structure.

[0059] Figure 9 It is a schematic diagram of the airflow distribution component structure.

[0060] Figure 10 It is a schematic diagram of the window array structure.

[0061] Figure 11 Schematic diagram of the symmetrical water collecting plate structure, (a) external schematic diagram, (b) AA cross-sectional structure (showing symmetrical flat plate), (c) AA cross-sectional structure (showing symmetrical curved plate).

[0062] Figure 12 This is a schematic diagram of the structure of a gas-liquid fluidized separation device, (a) shows the oblique side, (b) shows the front end, and (c) shows the rear end.

[0063] Figure 13 It is a schematic diagram of the air flow transport unit structure.

[0064] Figure 14 It is a schematic diagram of the intelligent control system structure.

[0065] The numbers in the accompanying drawings are:

[0066] 1 fluidized bed; 11 fluidizing box; 11a lower box body; 11b upper box body; 111 feed bin; 112 separation bin; 113 discharge bin; 114 air inlet; 115 exhaust port; 12 feed door; 13 air flow equalizing member; 131 frame; 132 window; 1321 window frame; 1322 window sash; 133 window control assembly; 134 movable grille; 14 backflush assembly; 141 suction nozzle; 142 nozzle;

[0067] 2 particle regeneration unit; 21 desorption box; 21a water collection chamber; 21b illumination chamber; 22 vibration damping seat; 23 water collection plate; 231 water collection hole; 232 outlet cover; 24 vibrating screen; 241 screen surface; 241a first section screen surface; 241b last section screen surface; 25 desorption light source; 26 storage box; 27 hose;

[0068] 3 particle conveying unit; 31 feeding mechanism; 32 closed pipe;

[0069] 4 solid particles;

[0070] 5 power units;

[0071] 6 Monitoring sensor; 61 Air flow sensor; 62 Gas humidity sensor; 63 Distance sensor; 64 Displacement sensor; 65 Air pressure sensor; 66 Temperature sensor; 67 Solid humidity sensor;

[0072] 7 air flow conveying unit; 71 centrifugal fan; 72 axial flow fan;

[0073] 8 mobile unit; 81 vehicle body; 82 driving control unit;

[0074] 100 central control unit; 200 data acquisition module; 210 fluidization data acquisition module; 220 regeneration data acquisition module; 300 fluidization control module; 400 circulation control module; 500 regeneration control module; 600 fault diagnosis module; 700 backflush control module; 800 movement control module. DETAILED DESCRIPTION

[0075] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0076] Example 1

[0077] like Figures 1 to 6 As shown, a gas-liquid fluidized separation component is manufactured.

[0078] Figure 1 This is a schematic diagram of the gas-liquid fluidized separation component structure. The dot-dashed line shows the direction of airflow.

[0079] The gas-liquid fluidized separation component includes a loop consisting of a fluidized bed 1, a particle regeneration unit 2, and a particle transfer unit 3 connected front to back, 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 a channel gate is provided between the fluidized bed 1, the particle regeneration unit 2, and the particle transfer unit 3.

[0080] Figure 2 This is a schematic diagram of the fluidized bed structure. The dotted arrows indicate the direction of solid particle transport.

[0081] The main body of the fluidized bed 1 is the fluidizing box 11. The fluidizing box 11 is a vertical box body, which is divided into three upper, middle and lower bins by the feed door 12 and the air flow divider 13, namely the feed bin 111, the separation bin 112, and the discharge bin 113; the discharge bin 113 is connected to the particle regeneration unit 2, and the feed bin 111 is connected to the particle conveying unit 3; the discharge bin 113 and the feed bin 111 are respectively provided with an air inlet 114 and an exhaust port 115 on the box wall, and the gas channel aperture of the air flow divider 13 is smaller than the particle size of the solid particles 4.

[0082] In the fluidized bed 1, the gas to be separated (hereinafter referred to as the gas to be separated) enters the discharge bin 113 through the gas inlet 114. It then flows evenly through the gas flow divider 13 and enters the separation bin 112, causing the solid particles 4 in the bin to move and enter a fluidized state. The gas to be separated is fluidized and dried in the separation bin 112 before exiting the fluidizing box 11 through the exhaust port 115. After the solid particles 4 are introduced from the feed bin 111 into the separation bin 112 and the fluidized separation operation is completed, they enter the discharge bin 113 and await entry into the particle regeneration unit 2 for active regeneration.

[0083] In order to increase the solid particle discharge speed, the bottom of the discharge bin 113 is designed to be funnel-shaped, and the funnel mouth is connected to the particle regeneration unit 2.

[0084] Figure 3 is a schematic diagram of the particle regeneration unit structure; Figure 4 Schematic diagram of the internal structure of the particle regeneration unit, (a) shows the front side, (b) shows the oblique side; Figure 5 It is a schematic diagram of the structure and parameter meaning of the vibrating screen.

[0085] The main body of the particle regeneration unit 2 is a desorption box 21, the bottom of the desorption box 21 is fixedly installed by a vibration damping seat 22, and a water collecting plate 23 is arranged 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 has a water collecting hole 231 and has a drainage slope toward the water collecting hole 231, and there is a cover 232 on the water collecting hole 231, which covers the water collecting hole 231 but has a distance from the hole mouth; above the water collecting bin 21a is an illumination bin 21b, and there is a vibrating screen 24 in the illumination bin 21b, the vibrating screen 24 is a multi-section screen surface 241 independent vibration structure, the rear end of the last section screen surface 241b is connected to the storage box 26, and the storage box 26 is connected to the particle conveying unit 3; the screen surface of the vibrating screen 24 is continuous line l The front end is higher than the rear end, with a slope of 8° to 12°, and the slope of the front section of the screen surface is greater than that of the rear section. A desorption light source 25 is located above the vibrating screen 24, illuminating the screen surface of the vibrating screen 24. A hose 27 connects the discharge bin 113 to the desorption box 21 and opens to the first section of the screen surface 241a. The water collection bin 21a has a drainage hole.

[0086] In this example, the screen surface continuous line l slopeα =9°, slope of the first screen surface 241a α a =10°~15°, slope of the final screen surface 241b α b =5°~8°.

[0087] In the particle regeneration unit 2, the solid particles 4 waiting for active regeneration enter the first screen surface 241a of the vibrating screen 24 from the discharge bin 113 through the hose 27, vibrate along the screen surface section by section, and are dehydrated by the desorption light source 25 during the vibration process. After dehydration on the last screen surface 241b, the regeneration is completed and enters the storage box 26, waiting to be transported by the particle conveying unit 3.

[0088] The segmented, independent vibration of the vibrating screen 24 allows for the configuration of appropriate vibration frequencies and amplitudes based on the structural characteristics and material properties of the solid particles 4 at different screen surface locations, thereby maximizing the drying accuracy and overall drying uniformity of the solid particles 4 and ensuring process stability in the fluidized separation state. The steeper slope of the front section of the screen helps disperse the water-absorbing solid particles 4, allowing them to be exposed to light more quickly and enter the dehydration state more quickly. The shallower slope of the rear section reduces the movement speed of the dried solid particles and avoids collision and friction losses. In addition to the screen surface slope structure, different vibration conditions can be configured for different screen sections, maintaining a gradual change in the overall screen surface design from high-frequency, low-amplitude vibration in the front section to low-frequency, high-amplitude vibration in the rear section (i.e., gradually decreasing vibration frequency and increasing amplitude), enhancing control over the vibration desorption process and efficiency. The overall vibration condition of the screen surface gradually changes from high frequency and low amplitude in the front section to low frequency and high amplitude in the rear section, so that the solid particles 4 can be quickly dispersed as wet particles on the front section screen surface to avoid agglomeration; the two processes of photothermal desorption and forward movement can be balanced on the middle section screen surface; and the desorption and drying effect can be consolidated on the rear section screen surface and smoothly input into the storage box 26.

[0089] In this example, the vibrating screen 24 utilizes a multi-frequency vibrating screen structure, enabling multiple screen sections 241 to vibrate independently. The specific vibration conditions are a frequency of 15 Hz to 40 Hz and an amplitude of 1 mm to 5 mm. The sections are configured as follows: the first screen section 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 screen section 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; and the intermediate screen section 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.

[0090] The escaped water leaks through the mesh holes onto the water collection plate 23 and enters the water collection chamber 21a through the water collection hole 231, achieving a relatively airtight seal. This means that, with the exception of the water collection hole 231, the water in the water collection chamber 21a cannot come into contact with the illumination chamber 21b. The cover 232 must completely cover the opening and be as close to it as possible.

[0091] Figure 6 It is a schematic diagram of the structure of the particle conveying unit (showing the spiral feeding mechanism).

[0092] The particle conveying unit 3 includes a feeding mechanism 31 and an external closed pipe 32 . The feeding mechanism 31 connects the storage box 26 and the feed bin 111 .

[0093] The feeding mechanism 31 feeds the solid particles 4 that have completed regeneration in the storage box 26 into the feeding bin 111 to wait for being re-fed into the separation bin 112 for the next operation.

[0094] The feeding mechanism 31 may adopt a conventional particle material conveying mechanism, such as a screw conveying mechanism, a bucket conveying mechanism, a belt conveying mechanism, a chain conveying mechanism, etc.

[0095] The solid particles 4 are photosensitive silica gel particles, and their particle size is larger than the mesh size of the sieve surface 241. The photosensitive silica gel particles are particles with a combination of a photothermal conversion material and a hygroscopic salt as functional components and a gel network as a supporting material.

[0096] In this example, solid particles 4 are MXene-LiCl@PAM-CS composite particles (polyacrylamide-chitosan-based MXene-lithium chloride photothermal hygroscopic composite particles). To facilitate photodehydration, the desorption light source 25 uses a xenon lamp array with a power density of 300 W / m² and a wavelength of 250 nm to 400 nm.

[0097] The power unit 5 includes a power supply unit and a control circuit, which provide energy to various energy-consuming components.

[0098] Example 2

[0099] like Figure 7 As shown, a gas-liquid fluidized separation component is processed. The same points as those in Example 1 are not repeated here. The difference lies in the structure of the fluidized bed 1.

[0100] The length of the separation chamber 112 is adjustable, thereby changing the volume of the fluidized space and the length of the fluidized path, thereby adjusting the fluidization and separation conditions. Specifically, the airflow divider 13 is movable along the axial direction of the fluidization box 11, dynamically separating the separation chamber 112 from the discharge chamber 113, enabling the adjustment of the length of the separation chamber 112.

[0101] Figure 7 Schematic diagram of the separation chamber length adjustment structure, (a) the nested chamber adjustment structure, and (b) the airflow equalizer adjustment structure. The dotted arrow indicates the length adjustment direction.

[0102] like Figure 7(a) Fluidizing box 11 is a nested structure, with lower box 11a nested within upper box 11b and slidingly connected along the axial direction of fluidizing box 11. The top of lower box 11a is airflow divider 13, and the inner cavity of lower box 11a is discharge bin 113. Lower box 11a can slide up and down along the axial direction of fluidizing box 11 to adjust the length of separation bin 112.

[0103] like Figure 7 (b) The airflow distributor 13 is connected to the vertical wall of the fluidizing box 11 by sliding along the axial direction of the fluidizing box 11. The airflow distributor 13 adjusts the length of the separation chamber 112 by axial movement.

[0104] Example 3

[0105] like Figure 8 As shown, a gas-liquid fluidized separation component is manufactured. The same points as the above embodiments are not repeated here. The difference lies in the structure of the fluidized bed 1.

[0106] Figure 8 It is a schematic diagram of the backflush component structure.

[0107] A backflush assembly 14 is installed within the fluidizing box 11. The suction nozzle 141 of the backflush assembly 14 is located at the top of the fluidizing box 11, near the exhaust port 115. The nozzle 142 is located at the bottom of the separation chamber 112, near the airflow divider 13. An airway connects the suction nozzle 141 and nozzle 142. The nozzles 142 are evenly distributed along the inner wall of the separation chamber 112, with the airflow jetting at an angle of 30° to 45° to the inner wall. The jet pressure of the nozzles 142 is 0.4 MPa to 0.6 MPa.

[0108] Backflush assembly 14 uses suction nozzle 141 to direct the separated and dried gas from the top of fluidizing box 11 through a pipeline to nozzle 142 for pressurized injection. This creates an instantaneous, rapid flushing airflow from nozzles 142 on the bin wall toward the center below, flushing the solid particles 4 accumulated at the bottom out of separation bin 112 and into discharge bin 113, thereby maintaining a stable fluidized state. Nozzles 142, evenly distributed along the inner wall of separation bin 112, can be opened and closed synchronously or individually.

[0109] Example 4

[0110] like Figures 9 and 10 As shown, a gas-liquid fluidized separation component is manufactured. The same points as the above embodiments are not repeated here. The difference lies in the structure of the fluidized bed 1.

[0111] Figure 9 Schematic diagram of the airflow distribution component structure; Figure 10 It is a schematic diagram of the window array structure.

[0112] The airflow divider 13 comprises a main plate-like structure; a frame 131 connected to the fluidization box 11; an array of windows 132 within the frame 131; windows 132 fixedly connected to the frame 131 and / or adjacent windows 132 via window frames 1321; openable window sashes 1322 fixed within the window frame 1321; and a window control assembly 133 controlling the opening and closing angles of each sash 1322; a movable grille 134 connected to the leeward side of the frame 131; 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 structure that, when open, covers all windows 132, dispersing the airflow and preventing the solid particles 4 from falling; and, when closed, reveals all windows 132, allowing the solid particles 4 to pass through. The airflow divider 13 utilizes the array of windows 132 to finely divide the incoming airflow, and the window control assembly 133 controls the opening and closing of the window sashes 1322, thereby adjusting the airflow size of each branch. The grille covers the outlet surface to further disperse the airflow and reduce turbulence.

[0113] The window sash 1322 in the window frame 1321 can be a single leaf or multiple leaves.

[0114] The movable grille 134 can be configured to have a flexible mesh body that can be unfolded and retracted (e.g., folded or rolled) along the plane of the frame 131. Alternatively, the body can be a rigid plate hinged to the frame 131 to open and close like a door or window.

[0115] Example 5

[0116] like Figure 11 As shown, a gas-liquid fluidized separation component is processed. The same points as the above embodiments are not repeated here. The difference lies in the structure of the particle regeneration unit 2.

[0117] The water collection plate 23 of the particle regeneration unit 2 serves the following functions: first, to seal the water collection chamber 21a; second, to quickly collect water and direct it to the water collection hole 231; and third, to prevent splashing of leaking water droplets. The shape of the water collection plate 23 must ensure that the water collection hole 231 is located at the foot of the drainage slope. Furthermore, the surface structure (including the coating) of the water collection plate 23 must be splash-proof and hydrophobic, ensuring that falling water droplets do not splash and flow rapidly without stagnation. The water collection hole 231 must minimize its total area while increasing its number of openings within a given area to shorten the distance water flows into the hole.

[0118] Figure 11 Schematic diagrams of a symmetrical water collection plate structure, (a) external schematic, (b) AA cross-section (showing a symmetrical flat plate), and (c) AA cross-section (showing a symmetrical curved plate). Water collection plate 23 employs a symmetrical structure, with opposing drainage slopes on both sides and a water collection hole 231 along its centerline.

[0119] Example 6

[0120] A gas-liquid fluidized separation component is manufactured. The same points as the above embodiments are not repeated here. The difference lies in the coating on the inner wall of the component.

[0121] The surfaces of components that come into contact with solid particles 4 are coated with an anti-stick coating or a nano-hydrophobic coating. Specifically, within particle regeneration unit 2, all surfaces except storage box 26 are coated with a nano-hydrophobic coating, and the inner wall of storage box 26 is coated with an anti-stick coating. Within fluidized bed 1 and particle transfer unit 3, the surfaces of components that come into contact with solid particles 4 are coated with an anti-stick coating.

[0122] Example 7

[0123] A gas-liquid fluidized separation component is manufactured. The same points as the above embodiment are not repeated here, and the difference lies in the solid particles 4.

[0124] The solid particles 4 have a particle size range of 0.5 mm to 2.0 mm, a bulk density of 600 kg / m³ to 750 kg / m³, a specific surface area of ​​500 m² / g to 800 m² / g, a superhydrophobic layer on the surface, and a contact angle of ≥120°.

[0125] In this example, the MXene-LiCl@PAM-CS processing of solid particles 4 uses MXene as the photothermal conversion material, LiCl as the hygroscopic salt, and polyacrylamide-chitosan (PAM-CS) gel network as the support material, and is specifically prepared by the following method.

[0126] 1. Preparation of granular raw materials

[0127] The preparation of the granular material refers to the existing Chinese patent application 202211603484X (publication number CN115975262A) to prepare a solar-driven high-strength atmospheric water collection composite material as a granular raw material.

[0128] 2. Particle forming

[0129] The granular raw materials are granulated and formed to obtain formed granular materials.

[0130] The granular raw materials were embrittled in liquid nitrogen and then mechanically crushed. Coarse particles (particle size 1 mm to 5 mm) were obtained by screening. The coarse particles were crushed into powder (particle size 100 μm to 500 μm) by a jet mill, mixed with water and a binder (hydroxypropyl methylcellulose in this case) to form a slurry (solid content 30% to 40%), and the slurry was extruded and rounded into spherical particles (particle size 0.5 mm to 2 mm).

[0131] 3. Post-processing of formed granules

[0132] The molded particles were immersed 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), and the residual PTFE dispersion on the surface was drained to form a surface superhydrophobic coating. The finished solid particles were obtained by vibration screening (pore size 0.5 mm to 2 mm).

[0133] 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.

[0134] Example 8

[0135] A gas-liquid fluidized separation component is manufactured. The same points as the above embodiment are not repeated here. The difference is that a monitoring sensor 6 is also included.

[0136] The air flow sensor 61 monitors the gas flow rate at the air inlet 114 .

[0137] The gas humidity sensor 62 monitors the humidity of the airflow at the exhaust port 115 .

[0138] The distance sensor 63 monitors the position of the solid particles 4 in the fluidizing box 11 and the length of the separation bin 112 . Specifically, it can be set at the height of the feed gate 12 .

[0139] The displacement sensor 64 monitors the settling velocity of the solid particles 4 in the separation chamber 112. Specifically, the displacement sensor 64 can be arranged on the vertical wall of the separation chamber 112 in a network array.

[0140] The air pressure sensor 65 monitors the air flow pressure at the outlet of the air flow equalizing element 13 , the air pressure at the upper and lower ends of the separation chamber 112 , and the pressure inside the separation chamber 112 .

[0141] The temperature sensor 66 monitors the surface temperature of the solid particles 4 on the screen surface of the vibrating screen 24 .

[0142] The solid moisture sensor 67 monitors the moisture of the solid particles 4 at the final screen surface 241b.

[0143] Example 9

[0144] like Figures 12 and 13 As shown, a gas-liquid fluidized separation device is manufactured, which is realized by using the gas-liquid fluidized separation component provided in Example 8.

[0145] Figure 12 Schematic diagram of the structure of a gas-liquid fluidized separation device, (a) shows the oblique side, (b) shows the front end, and (c) shows the rear end; Figure 13 It is a schematic diagram of the air flow transport unit structure.

[0146] The gas-liquid fluidized separation device is connected to the air flow conveying 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 regulate the gas to be separated entering the fluidized bed 1 by using a combination of components.

[0147] The air flow transport unit 7 is connected to the front end of the air inlet 114 . The front end of the air flow transport 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 .

[0148] The gas-liquid fluidized separation device is also designed to be mobile and includes a mobile unit 8. Mobile unit 8 includes a vehicle body 81 and a driving control unit 82. Driving control unit 82 controls the movement of vehicle body 81. Driving control unit 82 includes an automatic driving module to perform driving path planning and driving scheduling.

[0149] Compared to existing gas-liquid fluidized separation products, the most prominent feature of this invention is that, due to improvements in the material of the solid particles 4, the desorption and activity recovery processes for the solid particles 4 are extremely simplified and energy-efficient. The structure is simple and compact, and the entire product can complete the regeneration and recycling of the solid particles 4 in situ. This greatly expands the application scenarios of the gas-liquid fluidized separation device. By adding a mobile unit 8 and configuring an autonomous driving module in the driving control unit 82, the device's adaptability to different operating environments can be enhanced.

[0150] Figure 12 The illustrated gas-liquid fluidized separation device's body 81 houses three parallel gas-liquid fluidized separation modules. Each module's centrifugal blower 71 is adjustable in angle, facing in different directions to facilitate connection to front-end equipment. The three modules can operate in rotation, ensuring uninterrupted gas-liquid separation.

[0151] In order to improve the stability of the gas-liquid fluidized separation device when the three groups of components are connected to the front and rear equipment in rotation, an air tee can be added before the three air flow transport units 7. The air tee has a single air inlet and three air outlet branches, and a gas guide valve / door inside. After the gas to be separated enters the air tee from the single air inlet at the front end, it can enter any air flow transport unit 7 and the gas-liquid fluidized separation component for separation according to the operating status of the rear-end separation component. Similarly, a reverse air tee can also be added after the exhaust port 115 of the three groups of components. In this way, the function of multiple components operating in turn and connecting fluidized separation can be maximized without adjusting the front and rear end air path connections of the gas-liquid fluidized separation device.

[0152] It should be noted that the gas-liquid fluidized separation device can be implemented using any of the gas-liquid fluidized separation components provided in Examples 1 to 7, depending on the functional design. Furthermore, a mobile design is not essential for a gas-liquid fluidized separation device. The mobile unit 8 is added in this example to focus on the technical advantages of the assembly while saving space.

[0153] Example 10

[0154] like Figure 14As shown, a gas-liquid fluidized separation system is designed, which is implemented using the gas-liquid fluidized separation device provided in Example 9. The gas-liquid fluidized separation system includes an intelligent control system, which regulates the operation of the components of the gas-liquid fluidized separation system and the gas-liquid fluidized separation process.

[0155] 1. Intelligent control system structure

[0156] Figure 14 It is a schematic diagram of the intelligent control system structure.

[0157] The intelligent control system includes a central control unit 100, which connects and coordinates various functional modules. The functional modules include a data acquisition module 200, a fluidization control module 300, a circulation control module 400, a regeneration control module 500, a fault diagnosis module 600, and a movement control module 800.

[0158] The central control unit 100 utilizes the data acquisition module 200 to transmit data, perform calculations, and generate control instructions, including fluidization control instructions, circulation control instructions, and regeneration control instructions. The control instructions coordinate the gas-liquid fluidization separation process.

[0159] 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 status 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 status data.

[0160] The fluidization control module 300 is connected to the centrifugal fan 71, the axial flow fan 72, the separation bin 112 length adjustment mechanism, the feed door 12, and the air flow equalizer 13; and adjusts the feed, air intake, and length of the separation bin 112 of the fluidized bed 1 according to the fluidization control instructions of the central control unit 100.

[0161] The circulation control module 400 connects 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; and controls the conveying timing of the solid particles 4 in the system according to the circulation control instructions of the central control unit 100.

[0162] The regeneration control module 500 is connected to the vibrating screen 24 and the desorption light source 25 , and adjusts the illumination conditions of the desorption light source 25 and the vibration conditions of the vibrating screen 24 according to the regeneration control instruction of the central control unit 100 .

[0163] The fault diagnosis module 600 is connected to the monitoring sensor 6 in the system, triggers the protection program according to the identified abnormal state, and transmits the abnormal state information to the central control unit 100.

[0164] The movement control module 800 is connected to the driving control unit 82, plans a movement path according to the driving instructions of the central control unit 100, and feeds back position information.

[0165] 2. Intelligent control system coordination control

[0166] The solid particles 4 are put into the feed bin 111 (if the system needs to run continuously, the solid particles 4 can be put into the storage box 26 at the same time), each monitoring sensor 6 is in operation, and the data acquisition module 200 reads the real-time monitoring data.

[0167] 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 box 26 can be transported to the feed bin 111 for standby use); the distance sensor 63 monitors the position of the solid particles 4 in the fluidizing box 11 and the length of the separation bin 112.

[0168] Start the air flow transport unit 7, open the air inlet 114, and guide the gas to be separated through the air flow equalizer 13 into the separation bin 112 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 65 monitors the air flow pressure at the outlet of the air flow equalizer 13; the displacement sensor 64 monitors the settling velocity of the solid particles 4 in the separation bin 112, and the air pressure sensor 65 monitors the bin pressure of the separation bin 112.

[0169] When the environment in the separation chamber 112 is stable (e.g., stable porosity, stable chamber pressure, and stable settling velocity of solid particles 4), the exhaust port 115 is opened, and the gas humidity sensor 62 monitors the airflow humidity. The length of the separation chamber 112 is adjusted based on changes in the exhaust humidity and the porosity of the separation chamber 112. If the exhaust humidity is too high or the porosity is too low, the length of the separation chamber 112 is increased, and vice versa. Simultaneously, the airflow into the separation chamber 112 is adjusted as needed to maintain a stable environment within the chamber. Once the monitored indicators meet the separation condition set, the gas-liquid separation operation officially begins. The separation condition set includes: air velocity v at the air inlet 114 ≥ 1.2 times the minimum fluidization velocity, solid particle settling velocity V < 0.1 m / s, chamber pressure P∈[−50,50] Pa in the separation chamber 112, and a porosity of 0.75 to 0.85 in the separation chamber 112.

[0170] Porosity ε The pressure sensor 65 at the top and bottom of the separation chamber 112 monitors the data and calculates the pressure according to Formula 2. Where, ΔP is the pressure difference between the top and bottom of the separation chamber 112 (Pa), L - Length of separation chamber (m), ρ p - Solid particle density (kg / m³), ρ g- Density of the gas to be separated (kg / m³), g - gravitational acceleration constant (m / s²).

[0171] Formula 2

[0172] During fluidized separation, if monitoring indicators show a decrease in particle moisture absorption efficiency (e.g., humidity H at exhaust port 115 > 30% for a period exceeding 2 minutes) or deterioration in fluidization performance (e.g., solid particle 4 settling velocity V ≥ 0.1 m / s and adjustment of the air intake velocity is ineffective), this indicates that the solid particles 4 have reached moisture absorption saturation and should be regenerated. Close exhaust port 115, reduce the airflow velocity of airflow transport unit 7, and allow the solid particles 4 to gradually settle to the bottom of separation chamber 112. Once the solid particles 4 have reached the bottom, open the passage between separation chamber 112 and discharge chamber 113 to allow the saturated solid particles 4 to enter discharge chamber 113. Close the passage between separation chamber 112 and discharge chamber 113. If continuous separation is required, open feed gate 12, and feed solid particles 4 from feed chamber 111 into separation chamber 112. Re-adjust the flow rate until the separation condition is met, and continue gas-liquid separation.

[0173] The gate between the fluidized bed 1 and the particle regeneration unit 2 is opened, and the solid particles 4 in the discharge bin 113 are fed into the first screen section 241a of the vibrating screen 24. The gate is then closed. The desorption light source 25 is turned on and adjusted (e.g., light intensity of 300 W / m², preheating time of 5 minutes), and the first screen section 241a is activated to vibrate. The temperature sensor 66 monitors the surface temperature of the solid particles 4 on the screen surface. Each screen section 241 is then activated to vibrate and monitor the surface temperature of the solid particles 4. Once the solid particles 4 enter the final screen section 241b, the solid humidity sensor 67 monitors the humidity of the solid particles 4 on the screen surface. If the humidity exceeds a preset standard, light desorption continues. Once the solid particles 4 have passed desorption (e.g., the particle humidity reaches a preset standard, and the desorption efficiency calculated from the particle humidity is ≥95%), the outlet of the final screen section 241b is opened, and the solid particles 4 are fed into the storage bin 26. The solid particles 4 are temporarily stored in the storage bin 26, or directly delivered to the feed bin 111 by the particle conveying unit 3.

[0174] During the separation process, the fault diagnosis module 600 reads the monitoring data from each monitoring sensor 6 and identifies whether an abnormal state has occurred based on preset conditions. If an abnormal state occurs, a protection program is triggered and the abnormal state information is transmitted to the central control unit 100. Abnormal states primarily include at least one of abnormal airflow stability in the fluidized bed 1 (e.g., gas flow rate fluctuations >10%), abnormal environmental stability within the separation chamber 112 (e.g., particle distribution deviations >15%; the particle distribution characteristics are determined by analyzing the position data of the solid particles 4 within the fluidized box 11 as monitored by the distance sensor 63 to indicate whether the solid particles 4 are locally accumulated or unevenly distributed), and abnormal environmental balance within the illumination chamber 21b (e.g., uneven surface temperature of the solid particles 4). For a gas-liquid fluidized separation system equipped with multiple gas-liquid fluidized separation components in parallel, each component can operate simultaneously or sequentially, depending on the separation requirements of the gas to be separated. The core content of their coordination and cooperation is consistent with the operating principles of a single component and will not be elaborated here.

[0175] It should be noted that the gas-liquid fluidized separation device may not have the moving unit 8. Accordingly, the gas-liquid fluidized separation system may omit the moving control module 800.

[0176] Example 11

[0177] A gas-liquid fluidized separation system was designed. The same points as in Example 10 are not repeated here, except that it also includes backflush control.

[0178] For working conditions where fluidized separation operates continuously for a long time, backflush control is further added.

[0179] The intelligent control system also includes a backflush control module 700 . The backflush control module 700 is connected to the backflush component 14 and the airflow divider 13 , and adjusts the opening and closing of the airflow divider 13 and the backflush program of the backflush component 14 according to the backflush control instructions of the central control unit 100 .

[0180] The central control unit 100 utilizes the data acquisition module 200 to transmit data, perform calculations, and generate control instructions including backflush control instructions.

[0181] During the fluidized separation process, the central control unit 100 calculates the backflush score according to the monitoring data according to formula 1 S ,in, H - Exhaust port 115 gas humidity (%), H TH - exhaust humidity design threshold (%), V - solid particle 4 settling velocity (m / s). S When the value is greater than 0.4, the central control unit 100 generates a backflush control instruction.

[0182] Blowback score S The relationship with the backflush control instruction can be further detailed according to Table 1.

[0183] Table 1 Backflush command control strategy

[0184]

[0185] When backflush control is executed, the suction nozzle 141 of the backflush assembly 14 is started to inhale air; the current opening degree of the window sash 1322 is calculated to determine whether it is sufficient for the solid particles 4 to be blown out; if not, the opening angle of the window sash 1322 is gradually increased, and the air flow rate is increased at the same time; after the window sash 1322 is adjusted, the exhaust port 115 is closed, the movable grille 134 is retracted, the nozzle 142 is pressurized and sprayed, the movable grille 134 is unfolded, and a new backflush score is calculated. S After the backflush is completed, the components are reset as needed. It is 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 by: The invention comprises a loop composed of a fluidized bed (1), a particle regeneration unit (2), and a particle transfer unit (3) connected front to back, as well as solid particles (4) and a power unit (5). The particle regeneration unit (2) and the particle transfer unit (3) are connected to the bottom and the top of the fluidized bed (1) respectively. A channel gate is provided 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 fluidizing box (11), which is a vertical box body and is divided into three upper, middle and lower bins by a feed gate (12) and an airflow divider (13), namely a feed bin (111), a separation bin (112) and a discharge bin (113). The length of the separation bin (112) is adjustable. The discharge bin (113) is connected to the particle regeneration unit (2), and the feed bin (111) is connected to the particle conveying unit (3). An air inlet (114) and an air outlet (115) are respectively provided on the wall of the discharge bin (113) and the feed bin (111). The aperture of the gas channel of the airflow divider (13) is smaller than the particle size of the solid particles (4). The particle regeneration unit (2) is mainly composed of a desorption box (21), the bottom of which is fixedly mounted via a vibration damping seat (22), a water collecting plate (23) is provided 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) has a water collecting hole (231) and has a drainage slope toward the water collecting hole (231), and a cover (232) is provided on the water collecting hole (231); above the water collecting bin (21a) is an illumination bin (21b), a vibrating screen (24) is provided in the illumination bin (21b), the vibrating screen (24) is a multi-segment screen surface (241) with independent vibration structure, the rear end of the last segment screen surface (241b) is connected to a storage box (26), and the storage box (26) is connected to the particle conveying unit (3); the screen surface of the vibrating screen (24) is continuous line l The front end is higher than the rear end and is sloped α , the overall vibration condition of the screen surface gradually changes from high frequency and low amplitude in the front section to low frequency and high amplitude in the back section; a desorption light source (25) is provided above the vibrating screen (24), and 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 screen surface (241a), and the water collection bin (21a) has a drainage hole; The particle conveying unit (3) comprises a feeding mechanism (31) and an external closed pipe (32), wherein the feeding mechanism (31) connects the storage box (26) and the feed bin (111); The solid particles (4) are photosensitive silica gel particles, the particle size of which is larger than the sieve aperture of the sieve surface (241), and 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 supporting material; The power unit (5) comprises a power supply unit and a control circuit, and supplies energy to energy-consuming components.

2. The gas-liquid fluidized separation assembly according to claim 1, characterized in that: The main body of the airflow equalizing member (13) is a plate-like structure, the frame (131) is connected to the fluidization box (11), the frame (131) has an array of windows (132), the windows (132) are fixedly connected to the frame (131) and / or adjacent windows (132) through the window frame (1321), the window frame (1321) has a fixed openable window sash (1322), and the window control component (133) controls the opening and closing angle of each window sash (1322); the movable grille (134) is connected to the downwind side of the frame (131), 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 the window (132) when opened and reveals the window (132) when retracted.

3. The gas-liquid fluidized separation assembly according to claim 2, characterized in that: The slope of the vibrating screen (24) α =8°~12°, the screen surface (241) has a vibration frequency of 15 Hz~40 Hz, an amplitude of 1 mm~5 mm, and segmented frequency vibration; The solid particles (4) have a particle size range of 0.5 mm to 2 mm, a bulk density of 600 kg / m³ to 750 kg / m³, a specific surface area of ​​500 m² / g to 800 m² / g, a super-hydrophobic layer on the surface, and a contact angle of ≥120°; the preparation of the solid particles (4) comprises the following steps: first preparing a particle raw material, embrittle the particle raw material in liquid nitrogen, and then mechanically crushing the particle raw material into powder, mixing it with water and a binder to form a slurry, and extruding it into a round shape to obtain a shaped particle material, soaking the shaped particle material in a 1% PTFE dispersion, and heat-treating it at 80°C, taking it out and cooling it naturally, and then draining the residual PTFE dispersion on the surface to form a surface super-hydrophobic coating, and then vibrating and screening to obtain the finished solid particles (4); The surface of the component of the gas-liquid fluidized separation component that contacts the solid particles (4) has an anti-stick coating or a nano-hydrophobic coating.

4. The gas-liquid fluidized separation assembly according to claim 3, characterized in that: The position of the airflow equalizing member (13) can be moved along the axial direction of the fluidizing box (11), dynamically separating the separation bin (112) and the discharge bin (113), thereby achieving length adjustment of the separation bin (112).

5. The gas-liquid fluidized separation assembly according to claim 4, characterized in that: It also includes monitoring sensors (6), including: an air flow sensor (61) for monitoring the gas flow rate of the air inlet (114), a gas humidity sensor (62) for monitoring the air flow humidity of the exhaust port (115), a distance sensor (63) for monitoring the position of the solid particles (4) in the fluidized box (11) and the length of the separation bin (112), a displacement sensor (64) for monitoring the settling speed of the solid particles (4) in the separation bin (112), an air pressure sensor (65) for monitoring the air flow pressure of the air flow equalizer (13), the air pressure at the upper and lower ends of the separation bin (112), and the pressure inside the separation bin (112), 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 screen surface (241b).

6. Gas-liquid fluidized separation device, characterized by: The gas-liquid fluidized separation assembly according to claim 5 is used to realize the separation, wherein the air flow transport unit (7) is connected to the front end of the air inlet (114), the front end of the air flow transport unit (7) is a centrifugal fan (71), and the rear end is an axial flow fan (72), and the axial flow fan (72) is connected to the air inlet (114).

7. Gas-liquid fluidized separation system, characterized by: The method is implemented by using the gas-liquid fluidized separation device according to claim 6; further comprising an intelligent control system, wherein the intelligent control system comprises: The central control unit (100) utilizes the data acquisition module (200) to transmit data and generate control instructions to coordinate the gas-liquid fluidization separation process, wherein the control instructions include fluidization control instructions, circulation control instructions, and regeneration control instructions; The data acquisition module (200) acquires monitoring data from the monitoring sensor (6) and transmits the data 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 separation chamber (112) length adjustment mechanism, the feed door (12), and the airflow equalization member (13); and adjusts the air intake and feed of the fluidized bed (1), as well as the length of the separation chamber (112), according to the fluidization control instructions of the central control unit (100); 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); and controls the conveying sequence of the solid particles (4) in the system according to the circulation control instructions of the central control unit (100); The regeneration control module (500) is connected to the vibrating screen (24) and the desorption light source (25), and adjusts the illumination conditions of the desorption light source (25) and the vibration conditions 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 abnormal state information to the central control unit (100).

8. The gas-liquid fluidized separation system according to claim 7, characterized in that: Fluidized separation operation control is: Open the feed door (12), put the solid particles (4) in the feed bin (111) into the separation bin (112), start the air flow transport unit (7), open the air inlet (114), guide the gas to be separated through the air flow equalizer (13) into the separation bin (112) to suspend the solid particles (4), and read the data from the monitoring sensor (6) in the fluidized bed (1); When the environment in the separation chamber (112) is stable, the exhaust port (115) is opened, and the length of the separation chamber (112) is adjusted according to the exhaust humidity and the porosity of the separation chamber (112), and the state of the airflow into the separation chamber (112) is adjusted as needed to jointly maintain a stable environment in the chamber; When the monitored indicators meet the separation condition group, the gas-liquid separation working state is officially entered, and the separation condition group includes: the air inlet (114) air velocity v ≥ 1.2 times the minimum fluidization velocity, the solid particle settling velocity < 0.1 m / s, the separation chamber (112) pressure P∈[−50,50] Pa, and the separation chamber (112) void ratio 0.75 to 0.85; During the fluidized separation process, when the monitoring indicators show that the moisture absorption efficiency of the particles decreases or the fluidization performance deteriorates, the exhaust port (115) is closed, the air flow velocity of the air flow transport unit (7) is reduced, and after the solid particles (4) settle to the bottom of the separation bin (112), the passage between the separation bin (112) and the discharge bin (113) is opened to allow the moisture-absorbing solid particles (4) to enter the discharge bin (113), and the passage between the separation bin (112) and the discharge bin (113) is closed; Open the gate of the passage between the fluidized bed (1) and the particle regeneration unit (2), put the solid particles (4) in the discharge bin (113) into the first screen surface (241a) of the vibrating screen (24), and close the gate; The desorption light source (25) is turned on and adjusted, the monitoring sensor (6) in the particle regeneration unit (2) reads data, and the vibration of the screen surface (241) is started; when the solid particles (4) enter the final screen surface (241b), the solid humidity sensor (67) monitors the humidity of the solid particles (4) on the screen surface; when the solid particles (4) are desorbed and qualified, the outlet of the final screen surface (241b) is opened, and the solid particles (4) are sent to the storage box (26); the solid particles (4) in the storage box (26) are temporarily stored, or directly sent to the feed bin (111) by the particle conveying unit (3); During the fluidized separation operation, the fault diagnosis module (600) monitors and identifies abnormal conditions.

9. The gas-liquid fluidized separation system according to claim 8, characterized in that: A backflush assembly (14) is provided in the fluidized box (11), and the backflush assembly (14) guides the gas near the exhaust port (115) at the top of the fluidized box (11) to the gas flow equalizer (13) at the bottom of the separation chamber (112), and sprays a high-frequency rapid flushing air flow toward the center below through a controlled opening nozzle (142); The intelligent control system includes a backflush control module (700), which is connected to the backflush component (14) and the airflow equalizer (13) and adjusts the opening and closing of the airflow equalizer (13) and the backflush program of the backflush component (14) according to the backflush control instruction of the central control unit (100); The control instructions generated by the central control unit (100) further include backflush control instructions; During the fluidized separation process, the central control unit (100) calculates the backflush score according to the monitoring data according to formula 1: S ,when S When the value is greater than 0.4, the central control unit (100) generates a backflush control instruction; Formula 1 Where, H - Exhaust port (115) gas humidity, % H TH - exhaust humidity design threshold, %, V - solid particle (4) settling velocity, m / s.

10. The gas-liquid fluidized separation system according to any one of claims 7 to 9, characterized in that: The gas-liquid fluidized separation device further comprises a moving unit (8), the moving unit (8) comprising a vehicle body (81) and a driving control unit (82), the driving control unit (82) controlling the driving of the vehicle body (81); the driving control unit (82) comprising an automatic driving module for completing driving path planning and driving scheduling; the intelligent control system further comprises a moving control module (800), the moving control module (800) being connected to the driving control unit (82), planning a moving path and feeding back position information according to driving instructions from the central control unit (100).

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