A double flap valve discharging structure for titanium dioxide spray dryer cyclone

Abstract

The application discloses a double-flap valve discharging structure for a titanium dioxide spray dryer cyclone, and relates to the technical field of valves.The double-flap valve discharging structure for the titanium dioxide spray dryer cyclone comprises a device main body, wherein the device main body comprises a discharging port, a valve plate and a weight; and the device main body further comprises a secondary sealing buffer force storage mechanism arranged at the bottom of the discharging port.The double-flap valve discharging structure for the titanium dioxide spray dryer cyclone is characterized in that, when the valve plate is closed, the valve plate first abuts against the bottom of a secondary sealing ring, pushes a first annular plate to move upwards along a first sliding cavity to extrude gas, thereby playing a buffering and force storage role; in addition, the bottom of the valve plate abuts against the bottom of the discharging port, thereby forming a double sealing effect on the discharging port; when the valve plate is opened, the gas in the first sliding cavity can provide a downward thrust on the valve plate through the secondary sealing ring, thereby reducing the opening resistance, protecting the valve components and ensuring the action reliability.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to a double-flip valve discharge structure for the cyclone of a titanium dioxide spray dryer. Background Technology

[0002] The most common material collection method for spray dryers is cyclone collection. The cyclone outlet is generally under negative pressure. Currently, a double flap valve is generally used for material discharge to prevent the cyclone from communicating with the outside air. The electric counterweight double flap valve is a type of double flap valve that combines the advantages of electric drive and counterweight reset in a dust discharge and airlock device. It solves the limitations of pure counterweight type relying on the material's own weight, and the counterweight ensures the reliability of valve plate reset. During operation, after the motor starts, it is reduced in speed and torque by the reducer, which drives the cam-driven flap actuator module to open the upper valve plate, and the material falls into the chamber between the upper and lower valve plates. Then, the transmission mechanism moves, and the upper valve plate quickly resets and closes under the combined action of the counterweight and lever. Then, the cam-driven flap actuator module drives the lower valve plate to open, and the material is discharged. After the material is discharged, the lower valve plate also closes quickly with the help of the torque of the counterweight, completing one dust discharge cycle. Throughout the process, one of the upper and lower valve plates is always in the closed state, which can effectively prevent air leakage.

[0003] However, in the existing double-flip valve discharge structure used in titanium dioxide spray dryer cyclones, the traditional double-flip valve relies solely on a single contact seal between the valve plate and the discharge port. This is prone to gaps due to material residue and valve plate wear, allowing outside air to enter. When the valve plate is closed by being driven to reset by a counterweight, the valve plate closes with a rigid impact. Long-term use can easily lead to deformation of the valve plate and the end face of the discharge port, further exacerbating the sealing failure problem. Furthermore, when opened by a motor, the material adhesion and tight sealing surface result in high opening resistance, leading to a large motor load and potential damage. It can also cause problems such as difficulty in opening or even jamming. Summary of the Invention

[0004] The purpose of this invention is to provide a double-flip valve discharge structure for a titanium dioxide spray dryer cyclone that can buffer and store energy and perform secondary sealing when the valve plate is closed, and provide assistance when the valve plate is open, in order to solve the problems mentioned in the background art, such as poor single-contact sealing effect, rigid collision when the valve plate is closed, and large opening resistance when the valve plate is open.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer, comprising a main body, the main body including a valve body, a double-layer valve plate module, and a drive module; the valve body including a discharge port; the double-layer valve plate module including a rotating shaft and a valve plate, enabling the valve plate to perform a movable seal on the bottom of the discharge port; the drive module including a counterweight module and a cam-driven flip-plate execution module; the counterweight module including a lever arm and a counterweight; the main body further includes a secondary sealing buffer storage mechanism disposed at the bottom of the discharge port; the secondary sealing buffer storage mechanism includes:

[0006] A first annular cover is sealed to the bottom of the discharge port. A first sliding cavity is formed inside the first annular cover, and the sliding cavity is filled with gas at a preset pressure.

[0007] A first annular plate is slidably fitted within the sliding cavity of a first annular cover, and a secondary sealing ring is connected to the bottom of the first annular plate.

[0008] When the valve plate is closed, the end face of the valve plate simultaneously abuts and seals against the secondary sealing ring and the bottom end face of the discharge port, so that the valve plate, the first annular cover, the secondary sealing ring and the discharge port together form a sealed space; at the same time, the valve plate pushes the first annular plate to compress gas in the sliding cavity to achieve buffering and energy storage.

[0009] A pressure sensor is embedded in the inner wall of the sealed space to detect pressure parameters within the sealed space.

[0010] Preferably, the main body of the device further includes:

[0011] An adjustment mechanism is connected to a counterweight and is used to drive the counterweight to move and adjust according to the detection signal of a pressure sensor. The adjustment mechanism includes a groove formed on a lever arm, a first connecting block connected to the counterweight, and a moving module connected between the first connecting block and the lever arm. The first connecting block slides within the groove.

[0012] Preferably, the secondary sealing buffer storage mechanism further includes a sealing component disposed at the bottom of the secondary sealing ring; the sealing component includes an annular groove formed at the bottom of the secondary sealing ring, an annular rubber bladder connected to the annular groove, and an air passage connecting the annular rubber bladder and the first annular cover.

[0013] Preferably, the main body of the device further includes an air extraction mechanism disposed in a sealed space; the air extraction mechanism includes a second annular cover connected to the discharge port, and a second sliding cavity is formed inside the second annular cover; the air extraction mechanism further includes a second annular plate sliding in the second sliding cavity, a lifting mechanism for driving the second annular plate to move up and down, and a solenoid valve connecting the sealed space and the second sliding cavity.

[0014] Preferably, the lifting mechanism includes an electromagnet connected to the second annular cover, an iron block connected to the second annular plate, and a spring telescopic sleeve connecting the second annular plate and the second annular cover; the iron block is arranged opposite to the electromagnet.

[0015] Preferably, the secondary sealing buffer storage mechanism further includes a compression mechanism for secondary compression of the gas in the first sliding cavity; the compression mechanism includes a third annular plate sliding in the first sliding cavity, a first stop block connected to the first sliding cavity, and a pushing mechanism for pushing the third annular plate downward.

[0016] Preferably, the pushing mechanism includes a first pushing plate connected to the third annular plate, a first inclined surface disposed on the first pushing plate, and a pushing rod passing through the first sliding cavity and the second sliding cavity, so that one end of the pushing rod can slide along the first inclined surface; the pushing mechanism also includes a fixed block connected to the second annular plate, a pushing block, and a one-way rotation mechanism connected between the pushing block and the fixed block; the pushing block includes a second inclined surface, so that the other end of the pushing rod can slide on the second inclined surface.

[0017] Preferably, the one-way rotation mechanism includes a support block connected to the fixed block, a second connecting block connected to the push block, and a rotating rod connected between the second connecting block and the support block; the one-way rotation mechanism also includes a second stop connected to the fixed block and a reset component for resetting the rotating rod.

[0018] Preferably, the reset assembly includes a disk connected to the rotating rod and a torsion spring connected between the disk and the support block; the torsion spring is sleeved on the side wall of the rotating rod.

[0019] Preferably, the pushing mechanism further includes a pushing assembly for pushing the pushing rod to reset; the pushing assembly includes a pushing pin connected to the pushing rod, a connecting frame connected to the secondary sealing ring, and a second pushing plate connected to the connecting frame; the second pushing plate includes an inclined plate and a vertical plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This double-flip valve discharge structure for a titanium dioxide spray dryer cyclone system, through the inclusion of a secondary sealing buffer and energy storage mechanism, allows the valve plate to first abut against the bottom of the secondary sealing ring when closed, pushing the first annular plate upward along the first sliding chamber. This compresses the gas in the first sliding chamber, providing buffering and energy storage. Furthermore, the bottom of the valve plate abuts against the bottom of the discharge port, creating a double seal for a better sealing effect. When the valve plate opens, the gas in the first sliding chamber provides a downward thrust to the valve plate through the secondary sealing ring, reducing opening resistance and assisting in opening. This protects the valve components and ensures reliable operation. Attached Figure Description

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

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

[0024] Figure 3 This is a schematic diagram showing the positions of the secondary sealing buffer energy storage mechanism and the air extraction mechanism in this invention;

[0025] Figure 4 This is a schematic diagram of the secondary sealing buffer energy storage mechanism and the air extraction mechanism in this invention;

[0026] Figure 5 This is a partial cross-sectional view of the first and second annular covers in this invention.

[0027] Figure 6 This is a partial cross-sectional view of the first and second annular covers from another perspective in this invention.

[0028] Figure 7 This is a schematic diagram of the adjustment mechanism in this invention;

[0029] Figure 8 This is a schematic diagram showing the location of the sealing component in this invention;

[0030] Figure 9 This is a schematic diagram of the sealing assembly and lifting mechanism in this invention;

[0031] Figure 10 This is a schematic diagram of the sealing assembly and lifting mechanism from another perspective in this invention;

[0032] Figure 11 This is a schematic diagram of the unidirectional rotation mechanism in this invention.

[0033] In the diagram: 101, valve body; 102, rotating shaft; 103, valve plate; 104, discharge port; 105, cam-driven flap actuator module; 106, lever arm; 107, counterweight; 201, slide groove; 202, first connecting block; 203, moving module; 301, annular groove; 302, annular rubber bladder; 303, air passage; 401, second annular cover; 402, second annular plate; 403, solenoid valve; 501, spring telescopic sleeve; 502, iron block; 503, electromagnet; 601, third annular plate; 602, the... 701. First stop block; 702. First push plate; 703. First inclined surface; 704. Push rod; 705. Fixed block; 706. Push block; 707. Second inclined surface; 801. Support block; 802. Rotating rod; 803. Second connecting block; 804. Second stop block; 901. Disc; 902. Torsion spring; 1001. Push pin; 1002. Connecting frame; 1003. Inclined plate; 1004. Vertical plate; 1101. First annular cover; 1102. Secondary sealing ring; 1103. First annular plate; 1104. Pressure sensor. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-11 This invention provides a double-flip valve discharge structure for a cyclone separator in a titanium dioxide spray dryer, comprising a main body, which includes a valve body 101, a double-layer valve plate module, and a drive module; the valve body 101 includes a discharge port 104; the double-layer valve plate module includes a rotating shaft 102 and a valve plate 103, enabling the valve plate 103 to perform a movable seal on the bottom of the discharge port 104; the drive module includes a counterweight module and a cam-driven flip-plate execution module 105; the counterweight module includes a lever arm 106 and a counterweight 107, both of which are well-known technologies in this field and will not be described in detail here; the main body also includes a secondary sealing buffer storage mechanism disposed at the bottom of the discharge port 104; the secondary sealing buffer storage mechanism includes:

[0036] The first annular cover 1101 is sealed to the bottom of the discharge port 104. A first sliding cavity is formed inside the first annular cover 1101, and the sliding cavity is filled with gas at a preset pressure.

[0037] The first annular plate 1103 is slidably fitted in the sliding cavity of the first annular cover 1101, and a secondary sealing ring 1102 is connected to the bottom of the first annular plate 1103.

[0038] When valve plate 103 is closed, the end face of valve plate 103 simultaneously abuts against the bottom end face of secondary sealing ring 1102 and discharge port 104, sealing them together. This allows valve plate 103, first annular cover 1101, secondary sealing ring 1102, and discharge port 104 to form a sealed space. Simultaneously, valve plate 103 pushes the first annular plate 1103 to compress gas within the sliding cavity, achieving buffering and energy storage. When valve plate 103 is closed, it first abuts against the bottom of secondary sealing ring 1102, pushing the first annular plate 1103 along the first... When the sliding chamber moves upward, it can compress the gas in the first sliding chamber, which can play a role in buffering and storing energy. Furthermore, the bottom of the valve plate 103 abuts against the bottom of the discharge port 104, thereby forming a double sealing effect on the discharge port 104, making the sealing effect better. When the valve plate 103 is opened, the gas in the first sliding chamber can provide a downward thrust to the valve plate 103 through the secondary sealing ring 1102, reducing the opening resistance, providing assistance when opening, protecting the valve components, and ensuring the reliability of the operation.

[0039] The main body of the device also includes:

[0040] Pressure sensor 1104 is embedded in the inner wall of a closed space and is used to detect pressure parameters in the closed space.

[0041] An adjustment mechanism, connected to the counterweight 107, is used to drive the counterweight 107 to move and adjust according to the detection signal of the pressure sensor 1104. The adjustment mechanism includes a slide groove 201 formed on the lever arm 106, a first connecting block 202 connected to the counterweight 107, and a moving module 203 connecting the first connecting block 202 and the lever arm 106. The first connecting block 202 slides in the slide groove 201. In use, the air pressure in the sealed space is detected by the pressure sensor 1104, thereby checking the sealing performance between the valve plate 103 and the discharge port 104. The test shows that since the negative pressure at the cyclone outlet is greater than that in the sealed space, if the negative pressure in the sealed space increases, it indicates that there is a leak in the working part of the valve plate 103 and the discharge port 104. At this time, the moving module 203 drives the first connecting block 202 to move along the slide groove 201, and drives the counterweight 107 to move away from the rotating shaft 102, thereby increasing the squeezing force between the valve plate 103 and the discharge port 104, ensuring the sealing effect. In addition, since a negative pressure has been formed in the sealed space, it can reduce the amount of air entering the spray dryer and ensure the production quality of titanium dioxide.

[0042] The secondary sealing buffer and energy storage mechanism also includes a sealing component disposed at the bottom of the secondary sealing ring 1102. The sealing component includes an annular groove 301 opened at the bottom of the secondary sealing ring 1102, an annular rubber bladder 302 connected to the annular groove 301, and an air passage 303 connecting the annular rubber bladder 302 and the first annular cover 1101. When closing, the valve plate 103 can first abut against the bottom of the secondary sealing ring 1102, thereby pushing the first annular plate 1103 to move upward along the first sliding cavity. At this time, the gas in the first sliding cavity can be squeezed, which can play a buffering and energy storage role. At the same time, as the gas pressure in the first sliding cavity gradually increases, it can enter the annular rubber bladder 302 through the air passage 303, so that the annular rubber bladder 302 expands and abuts against the top of the valve plate 103, making the secondary sealing effect better.

[0043] The main body of the device also includes an air extraction mechanism disposed in a sealed space; the air extraction mechanism includes a second annular cover 401 connected to the discharge port 104, and a second sliding cavity is formed inside the second annular cover 401; the air extraction mechanism also includes a second annular plate 402 sliding in the second sliding cavity, a lifting mechanism for driving the second annular plate 402 to move up and down, and a solenoid valve 403 connecting the sealed space and the second sliding cavity. After the valve plate 103 is closed, the lifting mechanism drives the second annular plate 402 to move upward. At the same time, the solenoid valve 403 is opened, so that the air in the sealed space can enter the second annular plate 402 through the solenoid valve 403 for temporary storage and to form a negative pressure. Then, the solenoid valve 403 is closed, which can adsorb the valve plate 103, so that the sealing effect is better.

[0044] The lifting mechanism includes an electromagnet 503 connected to the second annular cover 401, an iron block 502 connected to the second annular plate 402, and a spring telescopic sleeve 501 connected between the second annular plate 402 and the second annular cover 401. The iron block 502 and the electromagnet 503 are arranged opposite each other. When the electromagnet 503 is de-energized, it no longer attracts the iron block 502. The second annular plate 402 can move upward along the second sliding cavity under the action of the spring telescopic sleeve 501, which facilitates the lifting and lowering of the second annular plate 402.

[0045] The secondary sealing buffer storage mechanism also includes a compression mechanism for secondary compression of the gas in the first sliding cavity; the compression mechanism includes a third annular plate 601 sliding in the first sliding cavity, a first stop block 602 connected to the first sliding cavity, and a pushing mechanism for pushing the third annular plate 601 downward. By pushing the third annular plate 601 downward through the pushing mechanism, the gas in the first sliding cavity can be secondary compressed, making its internal pressure greater, thereby improving the assist effect.

[0046] The pushing mechanism includes a first pushing plate 701 connected to the third annular plate 601, a first inclined surface 702 disposed on the first pushing plate 701, and a pushing rod 703 penetrating the first sliding cavity and the second sliding cavity, allowing one end of the pushing rod 703 to slide along the first inclined surface 702; the pushing mechanism also includes a fixed block 704 connected to the second annular plate 402, a pushing block 705, and a one-way rotation mechanism connecting the pushing block 705 and the fixed block 704; the pushing block 705 includes a second inclined surface 706, allowing the other end of the pushing rod 703 to slide on the second inclined surface 706; when the second annular plate 402 moves upward, when the pushing rod 703 slides, the pushing rod 703 slides along the first inclined surface 702. When the moving block 705 abuts against the push rod 703, the push block 705 can rotate downward under the action of the one-way rotation mechanism, and rotate upward to reset after passing the push rod 703. When the second annular plate 402 moves downward, when the second inclined surface 706 abuts against one end of the push rod 703, the push block 705 cannot rotate upward under the action of the one-way rotation mechanism, thereby pushing the push rod 703 to move, and causing the other end of the push rod 703 to slide along the first inclined surface 702 to the top of the first push plate 701. At this time, the gas in the first sliding cavity can be squeezed a second time without the need for additional power, which is more convenient and faster.

[0047] The one-way rotation mechanism includes a support block 801 connected to the fixed block 704, a second connecting block 803 connected to the push block 705, and a rotating rod 802 connected between the second connecting block 803 and the support block 801. The one-way rotation mechanism also includes a second stop block 804 connected to the fixed block 704 and a reset component for resetting the rotating rod 802. The push block 705 can rotate downward along the rotating rod 802, and under the action of the second stop block 804, the push block 705 cannot rotate upward, thus ensuring the one-way rotation of the push block 705.

[0048] The reset assembly includes a disc 901 connected to the rotating rod 802 and a torsion spring 902 connected between the disc 901 and the support block 801. The torsion spring 902 is sleeved on the side wall of the rotating rod 802 and plays a reset role in the rotation of the rotating rod 802, thereby driving the push block 705 to rotate and reset to a horizontal state, which is more convenient and quick.

[0049] The pushing mechanism also includes a pushing assembly for pushing the pushing rod 703 to reset; the pushing assembly includes a pushing pin 1001 connected to the pushing rod 703, a connecting frame 1002 connected to the secondary sealing ring 1102, and a second pushing plate connected to the connecting frame 1002; the second pushing plate includes an inclined plate 1003 and a vertical plate 1004. When the secondary sealing ring 1102 moves upward, it can drive the inclined plate 1003 and the vertical plate 1004 to move upward through the connecting frame 1002, so that the second pushing plate disengages from the pushing pin 1001. When the valve plate 103 is opened, the first annular plate 1103... When the secondary sealing ring 1102 moves downward, it can provide a downward thrust to the valve plate 103. At this time, the push pin 1001 can slide along the side wall of the connecting frame 1002. After the assist is completed, when the secondary sealing ring 1102 continues to move downward, the push pin 1001 can slide along the inclined plate 1003 to the side wall of the vertical plate 1004, thereby pushing the push rod 703 to disengage from the first push plate 701 and move to reset, so as to facilitate the reset of the push rod 703 and ensure subsequent normal operation. In normal state, the third annular plate 601 can fit with the first stop 602 under the action of air pressure.

[0050] Working principle: When in use, the cam drives the flapper module 105 to push the valve plate 103 to rotate downward to open. Under the gravity of the counterweight module, the valve plate 103 can rotate upward and abut against the bottom of the discharge port 104 to achieve the closing operation.

[0051] When closing, the valve plate 103 first abuts against the bottom of the secondary sealing ring 1102, thereby pushing the first annular plate 1103 to move upward along the first sliding cavity. At this time, the gas in the first sliding cavity can be squeezed, which can play a buffering and energy storage role. At the same time, as the gas pressure in the first sliding cavity gradually increases, it can enter the annular rubber bladder 302 through the air passage 303, so that the annular rubber bladder 302 expands and abuts against the top of the valve plate 103. Furthermore, the bottom of the valve plate 103 abuts against the bottom of the discharge port 104, thereby forming a double sealing effect on the discharge port 104, making the sealing effect better.

[0052] Furthermore, when the secondary sealing ring 1102 moves upward, it can drive the inclined plate 1003 and the vertical plate 1004 to move upward through the connecting frame 1002, so that the second push plate disengages from the push pin 1001.

[0053] Next, the electromagnet 503 is de-energized. At this time, it no longer attracts the iron block 502. The second annular plate 402 can move upward along the second sliding cavity under the action of the spring telescopic sleeve rod 501. At the same time, the solenoid valve 403 is opened, allowing the air in the sealed space to enter the second annular plate 402 through the solenoid valve 403 for temporary storage and to form a negative pressure. Then, the solenoid valve 403 is closed, which can adsorb the valve plate 103, making the sealing effect better. Furthermore, when the pushing block 705 abuts against the pushing rod 703, the pushing block 705 can rotate downward under the action of the one-way rotation mechanism, and rotate upward to reset after passing the pushing rod 703.

[0054] During use, the air pressure in the sealed space is detected by the pressure sensor 1104, which can be used to detect the sealing performance between the valve plate 103 and the discharge port 104. Since the negative pressure at the cyclone outlet is greater than that in the sealed space, if the negative pressure in the sealed space increases, it indicates that there is a leak in the working part of the valve plate 103 and the discharge port 104. At this time, the moving module 203 drives the first connecting block 202 to move along the slide 201 and drives the counterweight 107 to move away from the rotating shaft 102, thereby increasing the extrusion pressure between the valve plate 103 and the discharge port 104, ensuring the sealing effect. Furthermore, since a negative pressure has been formed in the sealed space, it can reduce the amount of air entering the spray dryer and ensure the production quality of titanium dioxide.

[0055] When the valve plate 103 needs to be opened, the electromagnet 503 is first energized. The energized electromagnet 503 attracts the iron block 502, causing the second annular plate 402 to move downwards along the second sliding cavity. Simultaneously, the solenoid valve 403 is opened, allowing the air temporarily stored in the second sliding cavity to be forced back into the sealed space, maintaining normal air pressure inside. Furthermore, when the second inclined surface 706 abuts against one end of the push rod 703, the push block 705 cannot rotate upwards due to the action of the second stop 804. The push rod 703 can be moved, and the other end of the push rod 703 can slide along the first inclined surface 702 to the top of the first push plate 701. At this time, the gas in the first sliding cavity can be squeezed a second time, making its internal pressure greater. The valve plate 103 can be pushed downward through the secondary sealing ring 1102. Then, the valve plate 103 is pushed downward to open by the cam-driven flap execution module 105, reducing the opening resistance, providing assistance when opening, protecting the valve components and ensuring the reliability of the operation.

[0056] When the valve plate 103 is opened, the first annular plate 1103 and the secondary sealing ring 1102 move downward, providing a downward thrust to the valve plate 103. At this time, the push pin 1001 can slide along the side wall of the connecting frame 1002. After the assist is completed, when the secondary sealing ring 1102 continues to move downward, the push pin 1001 can slide along the inclined plate 1003 to the side wall of the vertical plate 1004, thereby pushing the push rod 703 to disengage from the first push plate 701 and move back to its original position, ensuring normal operation thereafter. In normal condition, the third annular plate 601 can fit against the first stop block 602 under air pressure.

[0057] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0058] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A double-flip valve discharge structure for a cyclone separator in a titanium dioxide spray dryer, comprising a main body, the main body including a valve body (101), a discharge port (104), a valve plate (103), a cam-driven flap valve actuator (105), a lever arm (106), and a counterweight (107); characterized in that: The main body of the device also includes a secondary sealing buffer storage mechanism disposed at the bottom of the discharge port (104); the secondary sealing buffer storage mechanism includes: The first annular cover (1101) is sealed to the bottom of the discharge port (104). A first sliding cavity is formed inside the first annular cover (1101), and the first sliding cavity is filled with gas at a preset pressure. The first annular plate (1103) is slidably fitted in the first sliding cavity of the first annular cover (1101), and a secondary sealing ring (1102) is connected to the bottom of the first annular plate (1103). When the valve plate (103) is closed, the end face of the valve plate (103) simultaneously abuts against and seals the bottom end face of the secondary sealing ring (1102) and the discharge port (104), so that the valve plate (103), the first annular cover (1101), the secondary sealing ring (1102) and the discharge port (104) together form a sealed space; at the same time, the valve plate (103) pushes the first annular plate (1103) to compress gas in the first sliding cavity to achieve buffering and energy storage.

2. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 1, characterized in that: The main body of the device also includes: A pressure sensor (1104) is embedded in the inner wall of the sealed space and is used to detect the pressure parameters in the sealed space. An adjustment mechanism is connected to a counterweight (107) and is used to drive the counterweight (107) to move and adjust according to the detection signal of a pressure sensor (1104). The adjustment mechanism includes a groove (201) opened on a lever arm (106), a first connecting block (202) connected to the counterweight (107), and a moving module (203) connected between the first connecting block (202) and the lever arm (106). The first connecting block (202) slides in the groove (201).

3. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 1, characterized in that: The secondary sealing buffer energy storage mechanism also includes a sealing component disposed at the bottom of the secondary sealing ring (1102); the sealing component includes an annular groove (301) opened at the bottom of the secondary sealing ring (1102), an annular rubber bladder (302) connected to the annular groove (301), and an air passage (303) connecting the annular rubber bladder (302) and the first annular cover (1101).

4. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 1, characterized in that: The main body of the device also includes an air extraction mechanism disposed in a sealed space; the air extraction mechanism includes a second annular cover (401) connected to the discharge port (104), and a second sliding cavity is formed inside the second annular cover (401); the air extraction mechanism also includes a second annular plate (402) sliding in the second sliding cavity, a lifting mechanism for driving the second annular plate (402) to rise and fall, and a solenoid valve (403) connecting the sealed space and the second sliding cavity.

5. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 4, characterized in that: The lifting mechanism includes an electromagnet (503) connected to the second annular cover (401), an iron block (502) connected to the second annular plate (402), and a spring telescopic sleeve (501) connected between the second annular plate (402) and the second annular cover (401); the iron block (502) and the electromagnet (503) are arranged opposite to each other.

6. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 4, characterized in that: The secondary sealing buffer storage mechanism also includes a compression mechanism for secondary compression of the gas in the first sliding chamber; the compression mechanism includes a third annular plate (601) sliding in the first sliding chamber, a first stop block (602) connected to the first sliding chamber, and a pushing mechanism for pushing the third annular plate (601) downward.

7. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 6, characterized in that: The pushing mechanism includes a first pushing plate (701) connected to the third annular plate (601), a first inclined surface (702) disposed on the first pushing plate (701), and a pushing rod (703) passing through the first sliding cavity and the second sliding cavity, so that one end of the pushing rod (703) can slide along the first inclined surface (702); the pushing mechanism also includes a fixed block (704) connected to the second annular plate (402), a pushing block (705), and a one-way rotation mechanism connecting the pushing block (705) and the fixed block (704); the pushing block (705) includes a second inclined surface (706), so that the other end of the pushing rod (703) can slide on the second inclined surface (706).

8. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 7, characterized in that: The one-way rotation mechanism includes a support block (801) connected to the fixed block (704), a second connecting block (803) connected to the push block (705), and a rotating rod (802) connected between the second connecting block (803) and the support block (801); the one-way rotation mechanism also includes a second stop block (804) connected to the fixed block (704) and a reset component for resetting the rotating rod (802).

9. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 8, characterized in that: The reset assembly includes a disc (901) connected to the rotating rod (802) and a torsion spring (902) connected between the disc (901) and the support block (801); the torsion spring (902) is sleeved on the side wall of the rotating rod (802).

10. The double-flip valve discharge structure for a cyclone in a titanium dioxide spray dryer according to claim 7, characterized in that: The pushing mechanism further includes a pushing assembly for pushing the pushing rod (703) to reset; the pushing assembly includes a pushing pin (1001) connected to the pushing rod (703), a connecting frame (1002) connected to the secondary sealing ring (1102), and a second pushing plate connected to the connecting frame (1002); the second pushing plate includes an inclined plate (1003) and a vertical plate (1004).

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