A VOCs treatment device

Abstract

This invention belongs to the field of waste gas treatment technology, and particularly relates to a VOCs treatment device, including an adsorption box. A horizontal plate is connected to the inner wall of the adsorption box, dividing it into an upper chamber and a lower chamber. A conveyor chain is installed at the upper part of the upper chamber, with multiple hanging locks evenly spaced along the chain. Adsorption components are suspended from the hanging locks near the horizontal plate. Each adsorption component includes a frame, with multiple adsorption cylinders rotatably connected to the frame. A driving mechanism and an unlocking mechanism are provided at the inlet end of the upper chamber. The driving mechanism drives the adsorption cylinders to rotate. Clamping mechanisms for clamping the adsorption components are provided on opposite side walls of the upper chamber. One end of the horizontal plate has a lower part hole and a lower normally closed valve plate, while the other end has an upper part hole and an upper normally closed valve plate. A moving device with a lifting device is located at the bottom of the lower chamber. This invention can reduce the frequency of replacing adsorption components while ensuring the continuity of VOCs waste gas purification treatment.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a VOCs treatment device. Background Technology

[0002] VOCs (volatile organic compounds) are waste gases containing volatile organic compounds, typically including non-methane hydrocarbons, oxygenated organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, and sulfur-containing organic compounds. They have a significant impact on atmospheric ozone and PM2.5 pollution. VOCs are mainly generated from processes such as coal chemical industry, petrochemical industry, fuel and coating manufacturing, and solvent manufacturing and use.

[0003] The main technologies for treating VOCs waste gas include: absorption, which uses liquid absorbents for absorption; combustion, which uses fuel combustion to decompose harmful substances in waste gas into harmless substances; activated carbon adsorption, which uses activated carbon to adsorb harmful substances in waste gas; and UV photocatalytic oxidation, which uses high-energy UV ultraviolet light beams to irradiate waste gas, causing organic or inorganic compounds to decompose. Among these, activated carbon adsorption is widely used in VOCs waste gas treatment due to its high purification rate.

[0004] When an activated carbon adsorber is used for a period of time, the activated carbon inside is usually replaced as a whole. However, the activated carbon particles near the air inlet will become saturated first. If all the activated carbon is replaced at this time, the activated carbon particles away from the air inlet will not be saturated, which will easily lead to waste. However, if it is not replaced in time, the saturated activated carbon particles near the air inlet will affect the overall filtration efficiency.

[0005] Therefore, it is necessary to design a VOCs treatment device to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a VOCs treatment device to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides a VOCs treatment device, including an adsorption box. A horizontal plate is connected to the inner wall of the adsorption box, which is divided into an upper chamber and a lower chamber by the horizontal plate. A conveyor chain is provided at the upper part of the upper chamber, and multiple hanging locks are equally spaced on the chain of the conveyor chain. Adsorption components are suspended from the multiple hanging locks near the side of the horizontal plate. The adsorption components are perpendicular to the flow direction of the flue gas. The adsorption components include a frame, and multiple adsorption cylinders are rotatably connected to the frame. Adjacent adsorption cylinders are in frictional contact. A driving mechanism and an unlocking mechanism are provided at the inlet end of the upper chamber. The driving mechanism is used to drive the adsorption cylinders to rotate. Clamping mechanisms for clamping the adsorption components are provided on the opposite side walls of the upper chamber. A lower part hole and a lower normally closed valve plate are provided at one end of the horizontal plate, and an upper part hole and an upper normally closed valve plate are provided at the other end of the horizontal plate. A moving device is provided at the bottom of the lower chamber, and a lifting device for lifting the adsorption components is provided on the moving device.

[0008] Preferably, the lock includes a hinged seat connected to the chain, with a lock body hinged to the end of the hinged seat away from the chain. The lock body has an inverted U-shaped structure, and a buckle plate is hinged to one side of the lock body opening. A horizontal hole is provided at the bottom end of the buckle plate, and a lock tongue is slidably connected in the horizontal hole. The lock tongue has a wedge-shaped structure, and a lock rod is connected to the end of the lock tongue away from the lock body opening. A spring is slidably sleeved on the lock rod, and a blocking plate is slidably sleeved on the end of the lock rod away from the lock tongue. The blocking plate is connected to the lock body, and one end of the spring abuts against the lock tongue and the other end of the spring abuts against the blocking plate. A mounting seat is connected to the side of the lock body away from the opening, and the mounting seat is elastically connected to the buckle plate by a spring.

[0009] Preferably, the adsorption cylinder includes a rotating cylinder with a mesh structure on its sidewall. The rotating cylinder is filled with activated carbon particles, and a pulley is connected to the rotating shaft of the rotating cylinder. Multiple pulleys are connected by synchronous belt drive.

[0010] Preferably, the driving mechanism includes a ball screw linear module vertically mounted on the top of the adsorption box. A motor is mounted on the slider of the ball screw linear module. The output end of the motor is connected to a rotating rod. The bottom end of the rotating rod penetrates the top wall of the adsorption box and is connected to a strong magnet. The rotating rod is located above the first adsorption component.

[0011] Preferably, the moving device includes a lead screw rotatably connected to the bottom wall of the lower cavity, a fixed seat threadedly connected to the lead screw, the fixed seat being slidably limited on the inner bottom wall of the lower cavity, and a second motor mounted on the adsorption box, the second motor being driven by the lead screw.

[0012] Preferably, the lifting device includes threaded rods rotatably connected to both ends of the fixed base, the two threaded rods are arranged in parallel, and a tray is threaded between the two threaded rods. The tray is used to support the adsorption assembly. The bottom end of the threaded rod is connected to the output end of a motor three, and the motor three is mounted on the fixed base.

[0013] Preferably, the clamping mechanism includes a hydraulic rod installed on the opposite side wall of the adsorption box, the protruding end of the hydraulic rod passing through the side wall of the adsorption box and connected to a pressure plate, the pressure plate being located in the upper cavity, and a sealing cloth being connected between the pressure plate and the adsorption box.

[0014] Preferably, a guide plate is provided between two adjacent rotating drums. The guide plate has a V-shaped structure, and the tip of the guide plate is located on the windward side. Brush bristles are provided on both sides of the opening of the guide plate, and the brush bristles are in frictional contact with the rotating drum.

[0015] Preferably, the unlocking mechanism includes a cylinder installed on the inner wall of the upper cavity, a vertical plate connected to the extended end of the cylinder, a lever connected to the top of the buckle plate, and the vertical plate in frictional contact with the buckle plate.

[0016] Preferably, it also includes a burner, the inlet end of which is connected to the outlet end of the upper chamber via a pipe and is equipped with a solenoid valve three, and the outlet end of the upper chamber is equipped with an axial flow fan and a VOCs sensor, the outlet end of the burner is connected to the inlet end of the lower chamber via a pipe, and the outlet end of the lower chamber is connected to the inlet end of the burner via a pipe and is equipped with a solenoid valve one.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] This invention provides a VOCs treatment device. During use, a drive mechanism rotates the adsorption cylinder on the first adsorption assembly, changing the direction of the cylinder's sidewall and shifting the leeward side of the cylinder to the windward side. This repositions the saturated activated carbon particles, ensuring the adsorption effect of the adsorption assembly and extending its service life. When the first adsorption assembly is fully saturated, the locking mechanism unlocks the suspension lock, allowing the first adsorption assembly to break through the lower normally closed valve plate under its own weight and enter the lower cavity through the lower part hole onto the lifting device. The lifting device slowly lowers the assembly until it is fully inside the lower cavity. The lower normally closed valve plate resets under the action of a return spring and seals the lower part hole. Subsequently, a conveyor chain moves the second adsorption assembly forward one position. A clamping mechanism clamps both sides of the adsorption assembly to prevent flue gas from passing through the gap in the upper cavity sidewall. A moving device allows the removed adsorption assembly to be brought to the door for easy replacement with a new one.

[0019] This invention can reduce the frequency of replacing adsorption components, save costs, and at the same time ensure the continuity of VOCs waste gas purification treatment, avoiding long-term interruptions in VOCs waste gas treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a VOCs treatment device proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the hanging lock structure in this invention;

[0023] Figure 3 This is a top view of the adsorption component in this invention.

[0024] Figure 4 This is a schematic diagram of the lifting device in this invention;

[0025] The components are as follows: 1. Adsorption box; 2. Solenoid valve one; 3. Lower normally closed valve plate; 4. Horizontal plate; 5. Lower part hole; 6. Adsorption assembly; 7. Cylinder; 8. Hanging lock; 9. Lifting device; 10. Motor one; 11. Rotating rod; 12. Conveyor chain; 13. Solenoid valve two; 14. Upper normally closed valve plate; 15. Upper part hole; 16. Solenoid valve three; 17. Burner; 18. Motor two; 19. Door body; 20. Ball screw linear module; 21. Screw; 22. Pressure plate; 23. Sealing cloth; 24. Hydraulic rod; 601. Frame; 602. Guide plate; 603. Rotary drum; 604. Pulley; 605. Lock; 801. Spring 1; 802. Locking rod; 803. Blocking plate; 804. Spring 2; 805. Mounting base; 806. Lever; 807. Hinge base; 808. Buckle plate; 809. Lock tongue; 810. Lock body; 901. Fixing base; 902. Motor 3; 903. Tray; 904. Threaded rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. The described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] The technical terms used in the embodiments are explained below:

[0028] The core components of a ball screw linear module include a ball screw, linear guide, aluminum alloy profile, coupling, motor, photoelectric switch, ball screw assembly, and support base. The ball screw, consisting of a screw, nut, and balls, is responsible for converting rotary motion into linear motion. The linear guide provides support and guidance, ensuring smooth slider movement. The aluminum alloy profile serves as the structural frame, providing overall support and protection. The coupling connects the motor and ball screw, transmitting torque and compensating for axial misalignment. The motor, typically a servo motor or stepper motor, provides the power source. The photoelectric switch is used for limit and position detection, ensuring precise movement. Furthermore, the ball screw assembly includes a nut and circulating balls, while the support base is used to fix and support the ball screw.

[0029] Ball screw linear modules convert rotary motion into linear motion, featuring high precision, high efficiency, and high load capacity. They are widely used in electronics manufacturing, laser processing, welding, automotive manufacturing, automation equipment, and CNC machine tools to meet the demands for precise positioning and efficient operation.

[0030] Ball screw linear modules convert rotary motion into linear motion, featuring high precision, high efficiency, and high load capacity. They are widely used in electronics manufacturing, laser processing, welding, automotive manufacturing, automation equipment, and CNC machine tools to meet the demands for precise positioning and efficient operation.

[0031] The working principle of a ball screw linear module is as follows: a motor drives the ball screw to rotate via a coupling. The balls circulate between the screw and the nut, converting the rotational motion into the linear motion of the nut. The nut then drives a slider to move precisely in a linear path along a linear guide, achieving high-precision position control.

[0032] I. Core Components of a Combustion Engine:

[0033] 1. Burner:

[0034] Fuel nozzle: Atomizes fuel (such as natural gas or diesel) and injects it into the combustion chamber.

[0035] Ignition electrode: generates an electric spark to ignite the fuel-air mixture.

[0036] Flame detector: Monitors the flame status; if the flame goes out, it triggers a safety interlock.

[0037] Function: To achieve stable combustion of fuel and generate a high-temperature flame (typically ≥760℃).

[0038] 2. Heat exchanger:

[0039] Structure: It is usually a tube or plate design, with exhaust gas flowing inside / outside the tube and high-temperature combustion gas on the other side.

[0040] Function: To recover waste heat from combustion, preheat VOCs waste gas to be treated, and reduce fuel consumption.

[0041] 3. Control system:

[0042] PLC controller: Receives sensor signals and adjusts fuel flow, air ratio and combustion temperature.

[0043] Temperature sensor: Real-time monitoring of combustion chamber temperature (typically controlled at 760-850℃).

[0044] Pressure sensor: Monitors exhaust gas flow and combustion chamber pressure to ensure stable operation.

[0045] Function: To achieve automated control and ensure combustion efficiency and safety.

[0046] 4. Safety devices:

[0047] Gas leak detector: Detects fuel leaks and triggers an alarm.

[0048] Emergency flameout protection: Automatically cuts off fuel supply when the flame goes out.

[0049] Explosion-proof valve: Prevents combustion chamber overpressure explosion.

[0050] Function: To ensure the safe operation of equipment and to meet explosion-proof standards.

[0051] II. Working Principle of the Burner

[0052] Start-up phase

[0053] Ignition: The PLC controls the ignition electrode to generate an electric spark, which ignites the fuel-air mixture.

[0054] Heating: The burner gradually increases the fuel supply to raise the combustion chamber temperature to the set value (e.g., 800°C).

[0055] Normal operation phase

[0056] Waste gas introduction: When the adsorption component is saturated and VOCs emissions exceed the standard, solenoid valve 316 and solenoid valve 12 open, and unpurified waste gas enters the burner.

[0057] High-temperature oxidation: The exhaust gas comes into contact with a high-temperature flame in the combustion chamber, and VOCs are oxidized and decomposed into CO2 and H2O.

[0058] Heat recovery: The heat exchanger transfers the waste heat from combustion to the incoming exhaust gas. The preheated exhaust gas is easier to combust, saving fuel.

[0059] Regeneration mode (adsorbent regeneration)

[0060] High-temperature gas introduction: Some high-temperature gas (approximately 200-300℃) enters the lower chamber through the pipe to heat the saturated activated carbon adsorption component.

[0061] VOCs desorption: VOCs adsorbed by activated carbon are desorbed at high temperature and returned to the combustion chamber with the airflow for secondary combustion.

[0062] Adsorbent activation: The activated carbon is regenerated at high temperature to restore its adsorption capacity and is returned to the upper chamber for recycling via the lifting device 9.

[0063] Shutdown and Safety Protection

[0064] Flameout: After the PLC detects the shutdown signal, it gradually reduces the fuel supply until the flame is extinguished.

[0065] Cooling: After the combustion chamber temperature drops to a safe range, the fan continues to run to cool the equipment.

[0066] Troubleshooting: In the event of flameout, overheating, or gas leakage, the safety device will immediately activate, cutting off the fuel supply and triggering an alarm.

[0067] III. Technical Features

[0068] Highly efficient purification: Combustion can degrade more than 99% of VOCs, and is especially suitable for high-concentration or difficult-to-adsorb substances (such as benzene, toluene, and xylene).

[0069] Energy-saving design: The heat exchanger recovers waste heat, reducing fuel consumption (approximately 0.2-0.5 m³ / h is needed to treat 1 kg of VOCs). 3 natural gas).

[0070] Automated control: Unattended operation is achieved by linking sensors and actuators through PLC.

[0071] Safe and reliable: Multiple safety features ensure rapid response of the equipment in abnormal situations.

[0072] IV. Application Scenarios

[0073] In the VOCs treatment device of this invention, the burner and adsorption process are combined to form an integrated "adsorption-combustion" system:

[0074] Routine operation: The adsorption unit treats low concentrations of VOCs, while the burner is in standby or low-load operation.

[0075] Peak treatment: When the concentration of exhaust gas exceeds the standard, the burner starts to thoroughly purify the exhaust gas and regenerate the adsorbent.

[0076] Continuous operation: Through adsorbent circulation and combustion regeneration, the continuity and stability of waste gas treatment are ensured.

[0077] Reference Figures 1 to 4 As shown, the present invention provides a VOCs treatment device, including an adsorption box 1. A horizontal plate 4 is connected to the inner wall of the adsorption box 1. The adsorption box 1 is divided into an upper chamber and a lower chamber by the horizontal plate 4. A conveyor chain 12 is provided at the upper part of the upper chamber. Multiple hanging locks 8 are equally spaced on the chain of the conveyor chain 12. Adsorption components 6 are suspended from the multiple hanging locks 8 near the side of the horizontal plate 4. The adsorption components 6 are perpendicular to the flow direction of the flue gas. The adsorption components 6 include a frame 601. Multiple adsorption cylinders are rotatably connected to the frame 601. Adjacent adsorption cylinders are in frictional contact. A driving mechanism and an unlocking mechanism are provided at the inlet end of the upper chamber. The driving mechanism is used to drive the adsorption cylinders to rotate. Clamping mechanisms for clamping the adsorption components 6 are provided on the opposite side walls of the upper chamber. A lower part hole 5 is opened at one end of the horizontal plate 4 and a lower normally closed valve plate 3 is provided. An upper part hole 15 is opened at the other end of the horizontal plate 4 and an upper normally closed valve plate 14 is provided. A moving device is provided at the bottom of the lower chamber. A lifting device 9 for lifting the adsorption components 6 is provided on the moving device.

[0078] The conveyor chain 12 includes two sprockets rotatably connected to the inner wall of the upper cavity. The two sprockets are driven by a chain, and one of the sprockets has a drive motor driving its shaft.

[0079] In this embodiment, to prevent flue gas from passing over the adsorption assembly 6, a partition is provided below the conveyor chain 12. The partition has an elongated hole, through which the hanger 8 passes into the upper cavity. A sealing strip is provided at the contact point between the elongated hole and the hanger. The strip has an elliptical cross-section and a hollow structure. Vent holes are provided on the strip wall to ensure compressibility. Lubricating oil is applied to the outer surface of the strip to reduce friction with the hanger 8. A latch 605 is connected to the top center of the frame 601. The latch 605 is used to engage the hanger 8 for connection. A door 19 is provided on the side wall of the lower cavity for easy replacement of the adsorption assembly.

[0080] In use, the drive mechanism can drive the adsorption cylinder on the first adsorption component to rotate, thereby changing the direction of the adsorption cylinder side wall and adjusting the leeward side of the rotating cylinder to the windward side. This changes the orientation of the saturated activated carbon particles, ensuring the adsorption effect of the adsorption component and extending its service life. When the first adsorption component is fully saturated, the unlocking mechanism unlocks the hanging lock 8. The first adsorption component, under its own weight, pushes open the lower normally closed valve plate 3 and enters the lifting device 9 in the lower cavity through the lower part hole 5. The lifting device 9 slowly descends, and the adsorption component is fully entered into the lower cavity. The lower normally closed valve plate 3 is reset under the action of the return spring and seals the lower part hole 5. Then, the conveyor chain 12 drives the second adsorption component to move forward one position. The clamping mechanism clamps the two sides of the adsorption component to prevent flue gas from passing through the gap in the upper cavity side wall. The moving device can bring the replaced adsorption component to the door 19 for easy replacement with a new adsorption component 6.

[0081] This invention can reduce the frequency of replacing adsorption components, save costs, and at the same time ensure the continuity of VOCs waste gas purification treatment, avoiding long-term interruptions in VOCs waste gas treatment.

[0082] Furthermore, the pawl lock 8 includes a hinge seat 807 connected to the chain. A lock body 810 is hinged to the end of the hinge seat 807 away from the chain. The lock body 810 has an inverted U-shaped structure. A strike plate 808 is hinged to one side of the opening of the lock body 810. A horizontal hole is provided at the bottom of the strike plate 808, and a locking tongue 809 is slidably connected within the horizontal hole. The locking tongue 809 has a wedge-shaped structure. A locking rod 802 is connected to the end of the locking tongue 809 away from the opening of the lock body 810. A spring 801 is slidably sleeved on the lock body 810. The end of the lock rod 802 away from the bolt 809 extends out of the horizontal hole and is slidably sleeved with a blocking plate 803. The blocking plate 803 is connected to the lock body 810. One end of the spring 801 abuts against the bolt 809, and the other end of the spring 801 abuts against the blocking plate 803. A mounting base 805 is connected to the side of the lock body 810 away from the opening. The mounting base 805 is elastically connected to the buckle plate 808 through a spring 804.

[0083] By pressing the latch 605 against the bolt 809, the bolt 809 is forced to squeeze the spring 801 under the slope action of the bolt 809. At the same time, the spring 801 overcomes the elastic force of the spring 804 and rotates counterclockwise. The latch 605 enters the opening of the lock body 810. Then the latch 605 and the bolt 809 are reset, and the lock is locked.

[0084] Furthermore, the adsorption cylinder includes a rotating cylinder 603, the sidewall of which is a mesh structure, the rotating cylinder 603 is filled with activated carbon particles, and a pulley 604 is connected to the rotating shaft of the rotating cylinder 603. Multiple pulleys 604 are connected by synchronous belt drive.

[0085] The drive mechanism drives one of the pulleys 604, and the other pulleys 604 also rotate synchronously under the transmission of the synchronous belt, thereby realizing the displacement of the saturated activated carbon. On the other hand, the friction of the rotation of the two adjacent rotating drums 603 can effectively remove foreign objects intercepted on the outer wall of the rotating drum 603, thereby ensuring the adsorption capacity of the activated carbon.

[0086] Furthermore, the drive mechanism includes a ball screw linear module 20 vertically mounted on the top of the adsorption box 1. A motor 10 is mounted on the slider of the ball screw linear module 20. The output end of the motor 10 is connected to a rotating rod 11. The bottom end of the rotating rod 11 penetrates the top wall of the adsorption box 1 and is connected to a strong magnet. The rotating rod 11 is located above the first adsorption component 6.

[0087] The ball screw linear module 20 drives the motor 10 and the rotating rod 11 to move downwards. The strong magnet is attracted to the pulley 604, and the motor 10 is started. The motor 10 drives the rotating rod 11 and the pulley 604 to rotate.

[0088] Furthermore, the moving device includes a lead screw 21 rotatably connected to the bottom wall of the lower cavity, a fixed seat 901 threadedly connected to the lead screw 21, the fixed seat 901 being slidably limited on the inner bottom wall of the lower cavity, and a second motor 18 installed on the adsorption box 1, the second motor 18 being in transmission cooperation with the lead screw 21.

[0089] In this embodiment, the output end of the second motor 18 is connected to a pulley, and one end of the lead screw 21 is also connected to a pulley. The two pulleys are connected by belt transmission, so that the second motor 18 drives the lead screw 21 to rotate. The fixed seat 901 moves along the lead screw 21 under the engagement with the lead screw 21 and the guide groove on the inner bottom of the lower cavity.

[0090] Furthermore, the lifting device includes threaded rods 904 rotatably connected to both ends of the fixed base 901, the two threaded rods 904 are arranged in parallel, and a tray 903 is threadedly connected between the two threaded rods 904. The tray 903 is used to support the adsorption assembly 6. The bottom end of the threaded rods 904 is connected to the output end of the motor 902, and the motor 902 is mounted on the fixed base 901.

[0091] The two motors 902 are controlled to rotate synchronously, and the tray 903 moves upward stably under the engagement of the two threaded rods 904, thus lifting the adsorption component 6.

[0092] Furthermore, the clamping mechanism includes a hydraulic rod 24 installed on the opposite side wall of the adsorption box 1. The protruding end of the hydraulic rod 24 passes through the side wall of the adsorption box 1 and is connected to a pressure plate 22. The pressure plate 22 is located in the upper cavity, and a sealing cloth 23 is connected between the pressure plate 22 and the adsorption box 1.

[0093] The hydraulic rods 24 on both sides extend synchronously, driving the two pressure plates 22 to clamp synchronously on both sides of the adsorption assembly 6. During the clamping process, the sealing cloth 23 is pulled out to prevent the flue gas from passing through the gap between the pressure plate 22 and the inner wall, thus effectively blocking the flue gas.

[0094] Furthermore, a guide plate 602 is provided between two adjacent rotating drums 603. The guide plate 602 has a V-shaped structure, and the tip of the guide plate 602 is located on the windward side. Bristles are provided on both sides of the opening of the guide plate 602, and the bristles are in frictional contact with the rotating drum 603.

[0095] The guide plate 602 effectively guides the flue gas, preventing it from passing through the junction of two adjacent rotating drums 603 and reducing the adsorption efficiency. At the same time, the bristles effectively brush away foreign objects intercepted on the rotating drum 603 as it rotates.

[0096] Furthermore, the unlocking mechanism includes a cylinder 7 installed on the inner wall of the upper cavity, a vertical plate connected to the extended end of the cylinder 7, a lever 806 connected to the top of the buckle plate 808, and the vertical plate and the buckle plate 808 in frictional contact.

[0097] The cylinder 7 extends, driving the vertical plate to push the lever 806, which in turn drives the buckle 808 to rotate counterclockwise. The rotating buckle 808 causes the latch 809 to separate from the lock body 810, allowing the latch 605 to disengage under the gravity of the adsorption component 6, thus unlocking the lock.

[0098] Furthermore, it also includes a burner 17, the inlet end of which is connected to the outlet end of the upper chamber through a pipe and is equipped with a solenoid valve 16. The outlet end of the upper chamber is equipped with an axial flow fan and a VOCs sensor. The outlet end of the burner 17 is connected to the inlet end of the lower chamber through a pipe, and the outlet end of the lower chamber is connected to the inlet end of the burner 17 through a pipe and is equipped with a solenoid valve 2.

[0099] An axial flow fan directs the flue gas in the adsorption chamber 1 to flow in one direction. After VOCs are adsorbed and purified by the adsorption component 6, they are detected by the VOCs sensor. When the standard is met, the solenoid valve 13 at the upper chamber outlet is opened to exhaust the gas. When the standard is not met, the solenoid valve 16 and solenoid valve 2 are opened, and the VOCs gas enters the burner 17. The burner 17 is started, and the high temperature generated by the combustion in the burner 17 converts the VOCs into harmless gas. The high-temperature gas then enters the lower chamber, where the harmful substances on the activated carbon particles in the replaced adsorption component 6 are carried out by the high-temperature gas and enter the burner 17 for secondary combustion, converting the harmful substances into harmless gas for discharge. Meanwhile, the adsorption component 6 in the lower chamber is lifted by the lifting device 9 through the upper hole 15, which opens the normally closed valve plate 14 and enters the upper chamber. Then, the latch 605 is fastened to the hanging lock 8 for recycling.

[0100] The working principle of the VOCs treatment device provided by this invention is as follows: When in use, the axial flow fan is started to make the flue gas in the adsorption box 1 flow in one direction. After the VOCs are adsorbed and purified by the adsorption component 6, they are detected by the VOCs sensor. When the standard is met, the solenoid valve 13 at the outlet of the upper chamber is opened to exhaust the gas. When the standard is not met, the solenoid valve 16 and the solenoid valve 2 are opened, and the VOCs gas enters the burner 17. The burner 17 is started, and the high temperature generated by the combustion of the burner 17 converts the VOCs into harmless gas. Then the high temperature gas enters the lower chamber, and the harmful substances on the activated carbon particles in the adsorption component 6 that have been replaced are carried out by the high temperature gas and enter the burner 17 for secondary combustion. The harmful substances are converted into harmless gas and discharged. The adsorption component 6 in the lower cavity is lifted by the lifting device 9 through the upper part hole 15, which forces open the upper normally closed valve plate 14 and enters the upper cavity. Then, the latch 605 is fastened to the lifting lock 8 for recycling. When it is necessary to change the position of the adsorption cylinder side wall of the first adsorption component 6, the drive mechanism drives the pulley 604 to rotate. When the activated carbon on the first adsorption component 6 is saturated, the lifting lock 8 is unlocked by the unlocking mechanism. The first adsorption component 6 forces open the lower normally closed valve plate 3 by its own weight and enters the lifting device 9 in the lower cavity through the lower part hole 5. The lifting device 9 slowly descends, and the adsorption component 6 is completely entered into the lower cavity. The lower normally closed valve plate 3 is reset under the action of the return spring and seals the lower part hole 5. Then, the conveyor chain 12 drives the second adsorption component 6 to move forward one position.

[0101] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A VOCs treatment device, characterized in that, The system includes an adsorption box (1), on which a horizontal plate (4) is connected. The adsorption box (1) is divided into an upper chamber and a lower chamber by the horizontal plate (4). A conveyor chain (12) is provided at the upper part of the upper chamber. Multiple hanging locks (8) are provided at equal intervals on the chain of the conveyor chain (12). Adsorption components (6) are suspended from the multiple hanging locks (8) near the side of the horizontal plate (4). The adsorption components (6) are perpendicular to the flow direction of the flue gas. The adsorption components (6) include a frame (601). Multiple adsorption cylinders are rotatably connected to the frame (601). The two adsorption cylinders are in frictional contact. The inlet end of the upper cavity is provided with a driving mechanism and an unlocking mechanism. The driving mechanism is used to drive the adsorption cylinder to rotate. The opposite side walls of the upper cavity are provided with clamping mechanisms for clamping the adsorption assembly (6). One end of the horizontal plate (4) is provided with a lower part hole (5) and a lower normally closed valve plate (3). The other end of the horizontal plate (4) is provided with an upper part hole (15) and an upper normally closed valve plate (14). The bottom of the lower cavity is provided with a moving device. The moving device is provided with a lifting device (9) for lifting the adsorption assembly (6). The sling lock (8) includes a hinge seat (807) connected to the chain. A lock body (810) is hinged to the end of the hinge seat (807) away from the chain. The lock body (810) has an inverted U-shaped structure. A buckle plate (808) is hinged to one side of the opening of the lock body (810). A horizontal hole is provided at the bottom end of the buckle plate (808). A lock tongue (809) is slidably connected in the horizontal hole. The lock tongue (809) has a wedge-shaped structure. A lock rod (802) is connected to the end of the lock tongue (809) away from the opening of the lock body (810). The lock rod (802) A spring (801) is slidably sleeved on the upper side. The end of the locking rod (802) away from the bolt (809) extends out of the horizontal hole and is slidably sleeved with a blocking plate (803). The blocking plate (803) is connected to the lock body (810). One end of the spring (801) abuts against the bolt (809), and the other end of the spring (801) abuts against the blocking plate (803). A mounting base (805) is connected to the side of the lock body (810) away from the opening. The mounting base (805) is elastically connected to the buckle plate (808) through a spring (804). The adsorption cylinder includes a rotating cylinder (603), the side wall of the rotating cylinder (603) is a mesh structure, the rotating cylinder (603) is filled with activated carbon particles, and a pulley (604) is connected to the rotating shaft of the rotating cylinder (603). Multiple pulleys (604) are connected by synchronous belt drive. The driving mechanism includes a ball screw linear module (20) vertically mounted on the top of the adsorption box (1). A motor (10) is mounted on the slider of the ball screw linear module (20). The output end of the motor (10) is connected to a rotating rod (11). The bottom end of the rotating rod (11) penetrates the top wall of the adsorption box (1) and is connected to a strong magnet. The rotating rod (11) is located above the first adsorption component (6). The unlocking mechanism includes a cylinder (7) installed on the inner wall of the upper cavity. The extended end of the cylinder (7) is connected to a vertical plate, and the top of the buckle plate (808) is connected to a lever (806). The vertical plate and the buckle plate (808) are in frictional contact.

2. The VOCs treatment device according to claim 1, characterized in that, The moving device includes a lead screw (21) rotatably connected to the bottom wall of the lower cavity, a fixed seat (901) threadedly connected to the lead screw (21), the fixed seat (901) being slidably limited on the inner bottom wall of the lower cavity, and a second motor (18) installed on the adsorption box (1), the second motor (18) being in transmission cooperation with the lead screw (21).

3. The VOCs treatment device according to claim 2, characterized in that, The lifting device (9) includes threaded rods (904) rotatably connected to both ends of the fixed base (901). The two threaded rods (904) are arranged in parallel, and a tray (903) is threaded between the two threaded rods (904). The tray (903) is used to support the adsorption assembly (6). The bottom end of the threaded rod (904) is connected to the output end of a motor (902), and the motor (902) is mounted on the fixed base (901).

4. The VOCs treatment device according to claim 1, characterized in that, The clamping mechanism includes a hydraulic rod (24) installed on the opposite side wall of the adsorption box (1). The protruding end of the hydraulic rod (24) passes through the side wall of the adsorption box (1) and is connected to a pressure plate (22). The pressure plate (22) is located in the upper cavity, and a sealing cloth (23) is connected between the pressure plate (22) and the adsorption box (1).

5. The VOCs treatment device according to claim 1, characterized in that, A guide plate (602) is provided between two adjacent rotating drums (603). The guide plate (602) has a V-shaped structure, and the tip of the guide plate (602) is located on the windward side. Brushes are provided on both sides of the opening of the guide plate (602), and the brushes are in frictional contact with the rotating drum (603).

6. The VOCs treatment device according to claim 1, characterized in that, It also includes a burner (17), the inlet end of which is connected to the outlet end of the upper chamber through a pipe and is equipped with a solenoid valve three (16), and the outlet end of the upper chamber is equipped with an axial flow fan and a VOCs sensor. The outlet end of the burner (17) is connected to the inlet end of the lower chamber through a pipe, and the outlet end of the lower chamber is connected to the inlet end of the burner (17) through a pipe and is equipped with a solenoid valve one (2).

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