Environment-friendly waste gas treatment equipment for 2-ethylanthraquinone production

Abstract

This invention relates to the field of waste gas treatment technology, specifically to an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone. The device includes a high-efficiency compression and purification unit installed at the bottom of a tail gas absorption tower. The high-efficiency compression and purification unit comprises a mounting housing, a one-way air inlet device, a waste gas purification component, a reciprocating pushing device, and a cleaning and unblocking component. The mounting housing is fixedly installed at the bottom of the tail gas absorption tower. The one-way air inlet device is installed on the side of the mounting housing. The waste gas purification component is installed inside the mounting housing and includes a purification liquid conveyor, which is slidably installed inside the mounting housing. Multiple return springs are installed between the purification liquid conveyor and the mounting housing, and several flow purification heads are installed on the purification liquid conveyor. The reciprocating pushing device is installed inside the mounting housing. The cleaning and unblocking component is installed inside the mounting housing. This invention effectively improves treatment quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone. Background Technology

[0002] 2-Ethylanthraquinone is a key intermediate in fine chemicals, hydrogen peroxide production, and other fields. Its production process generates process waste gas containing acidic gases, volatile organic compounds, and trace particulate matter. This waste gas must be purified and treated efficiently before it can be discharged. The tail gas absorption tower is the core equipment for achieving the standard treatment of this waste gas.

[0003] Chinese Patent No. CN217431326U discloses a tail gas absorption tower for the preparation and production of 2-ethylanthraquinone, comprising a base and a tail gas absorption tower body. The tail gas absorption tower body is installed on the upper end of the base. A water pump box is connected to the outer right wall of the base and the tail gas absorption tower body. An inlet is provided on the outer right wall of the water pump box. By adding a novel auxiliary treatment device to the lower side of each of the two spray pipes inside the tail gas absorption tower for the preparation and production of 2-ethylanthraquinone, the auxiliary treatment device can effectively assist the tail gas absorption tower in further purifying and treating the chemical waste gas generated during the preparation and production of 2-ethylanthraquinone. This can greatly increase the waste gas treatment capacity and treatment effect of the tail gas absorption tower. Moreover, the auxiliary treatment device plays a supporting role in treating chemical waste gas without affecting the normal flow of waste gas in the tail gas absorption tower, thus not affecting the normal operation of the entire tail gas absorption tower.

[0004] The aforementioned patent employs a spray absorption tower, which forms gas-liquid contact through multi-stage spraying and atomized absorbent liquid to improve pollutant removal efficiency. To enhance gas-liquid mixing and adsorption effects, a multi-layer mesh wet layer structure is added below the spray section. The mesh carrier adsorbs the absorbent liquid, increases the gas-liquid contact area, improves the problem of uneven local mixing, and thus improves the depth of waste gas purification.

[0005] However, this type of mesh-like wet layer structure presents an intractable technical contradiction in practical applications: if the openings in the mesh-like wet layer are too large, the gas-liquid contact path is short and the effective contact area is insufficient, making it impossible to achieve sufficient mass transfer and adsorption, resulting in a significant decrease in mixing and purification effects and making it difficult to meet stringent environmental emission requirements; if the openings are too small, although the contact time can be extended and the mixing and adsorption efficiency improved, the 2-ethylanthraquinone production exhaust gas contains trace amounts of viscous byproducts and dust, which are prone to depositing and adhering at the small-diameter mesh openings during long-term operation, causing mesh blockage. This leads to a sharp increase in airflow resistance and a decrease in ventilation volume within the tower, not only reducing the waste gas treatment efficiency and equipment processing capacity but also increasing fan energy consumption. In severe cases, shutdown for unblocking is required, affecting production continuity and equipment operational stability. Furthermore, traditional mesh structures are mostly fixed grid forms, lacking adaptive adjustment and anti-clogging functions, and cannot balance mixing effects, airflow smoothness, and long-term operational reliability. This makes it difficult to adapt to the continuous, stable, and efficient purification requirements of 2-ethylanthraquinone production exhaust gas, thus restricting the environmental performance and industrial application effects of existing exhaust gas treatment equipment. Summary of the Invention

[0006] To address the aforementioned issues, an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone is provided, which effectively improves treatment quality and efficiency through a high-efficiency compression and purification device.

[0007] To address the problems of existing technologies, this invention provides an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone, comprising a high-efficiency compression and purification device installed at the bottom of a tail gas absorption tower. The high-efficiency compression and purification device includes a mounting housing, a one-way air inlet device, a waste gas purification component, a reciprocating pushing device, and a cleaning and unblocking component. The mounting housing is fixedly installed at the bottom of the tail gas absorption tower. The one-way air inlet device is installed on the side of the mounting housing and is used to guide waste gas unidirectionally into the interior of the mounting housing. The waste gas purification component is installed inside the mounting housing and includes a purification liquid conveyor, which is slidably installed inside the mounting housing. Multiple return springs are installed between the purification liquid conveyor and the mounting housing, and several flow purification heads are installed on the purification liquid conveyor for airflow. The reciprocating pushing device is installed inside the mounting housing, with its pushing end abutting against the top of the purification liquid conveyor. The cleaning and unblocking component is installed inside the mounting housing and is used to clean and unblock the flow purification heads.

[0008] Preferably, the purified liquid conveyor has a flow chamber inside, an inlet pipe at the bottom, several limiting installation holes, multiple outlet holes on the inner wall of the limiting installation holes, a filter screen at the bottom of the limiting installation holes, and a limiting frame with several snap-fit ​​installation holes.

[0009] Preferably, the inside of the flow purification head has multiple spiral holes.

[0010] Preferably, the reciprocating pushing device includes a sliding mounting bracket, a rotary driver, a rotary drive disk, and a movable push rod; the sliding mounting bracket is slidably mounted inside the mounting housing, and a push rod is mounted on the sliding mounting bracket. An adaptive ventilated push plate is mounted on the end of the push rod away from the sliding mounting bracket, and the adaptive ventilated push plate abuts against the top of the purified liquid conveyor; the rotary driver is fixed to the side of the mounting housing, and the rotary drive disk is fixedly mounted on the output end of the rotary driver; one end of the movable push rod is rotatably connected to the rotary drive disk, and the end of the movable push rod away from the rotary drive disk is rotatably connected to the sliding mounting bracket.

[0011] Preferably, the adaptive breathable push plate is provided with several airflow holes, and each airflow hole is rotatably mounted with a movable baffle.

[0012] Preferably, the unclogging and cleaning assembly includes a backflushing device and a debris cleaning device; the backflushing device is mounted on the reciprocating pushing device; the debris cleaning device is mounted on the bottom of the mounting housing.

[0013] Preferably, the backwashing device includes strip-shaped flushing nozzles and a first rotary drive device; the first rotary drive device is fixedly mounted on a sliding mounting bracket, and the output end of the first rotary drive device is connected to the push rod for transmission; multiple strip-shaped flushing nozzles are provided and evenly distributed on the adaptive ventilated push plate, and the strip-shaped flushing nozzles are used to deliver cleaning fluid to the flow purification head.

[0014] Preferably, the impurity cleaning device includes a rotating mounting frame, cleaning brushes, a first linear driver, and a second rotary drive; the second rotary drive is installed at the bottom of the mounting housing; the rotating mounting frame is slidably installed at the output end of the second rotary drive; multiple cleaning brushes are provided and evenly distributed on the rotating mounting frame, and the cleaning brushes are detachably connected to the rotating mounting frame; the first linear driver is fixedly installed at the bottom of the mounting housing, and a connecting plate is installed at the output end of the first linear driver, which is rotatably connected to the rotating mounting frame.

[0015] Preferably, the one-way air intake device includes an air intake chamber and a one-way air intake channel; the air intake chamber is located on the side of the mounting housing, and a floating air bag is provided inside the air intake chamber; the one-way air intake channel is installed at the output end of the air intake chamber, and the output end of the one-way air intake channel is connected to the interior of the mounting housing, and a one-way airflow valve is provided on the one-way air intake channel.

[0016] Preferably, the mounting housing includes a fixed mounting housing, a separating bottom housing, a second linear actuator, and a guide rod; the fixed mounting housing is fixedly installed at the bottom of the exhaust gas absorption tower; the separating bottom housing is located at the bottom of the fixed mounting housing, and the separating bottom housing is coaxially arranged with the fixed mounting housing, and the bottom of the separating bottom housing is also provided with a drain pipe; the second linear actuator is fixedly installed on the fixed mounting housing, and the output end of the second linear actuator is connected to the separating bottom housing; the guide rod is fixedly installed on the separating bottom housing, and the guide rod is slidably connected to the fixed mounting housing.

[0017] The advantages of this invention compared to the prior art are: 1. This invention enhances gas-liquid mass transfer efficiency through dynamic compression, effectively solving the technical problems of uneven gas-liquid contact and limited mass transfer effect in traditional spray absorption towers with a mesh-like wet layer structure. This significantly improves the purification depth and treatment efficiency of 2-ethylanthraquinone production waste gas. The equipment constructs a closed cavity through the mounting shell, and with a unidirectional air inlet device, it achieves unidirectional flow of waste gas, preventing secondary pollution caused by waste gas backflow and providing a stable cavity environment for efficient gas-liquid reaction. In the waste gas purification component, the purified liquid conveyor is elastically suspended by a return spring. The reciprocating pushing device periodically pushes the purified liquid conveyor, generating vertical displacement, causing the volume at the bottom of the mounting shell to change periodically, thus creating alternating high-pressure and negative-pressure environments. Under high pressure, the exhaust gas is forcibly compressed and accelerated through the microporous array channels of the flow purification head. At the same time, the purification liquid is continuously supplied to the flow purification head under high pressure, forming a uniformly covered liquid film structure. The exhaust gas and purification liquid form a high-speed turbulent mixing in the microporous channels, which greatly increases the gas-liquid contact area and contact intensity, enhances the mass transfer process between acidic gases, volatile organic compounds and trace particulate matter and the purification liquid, and achieves efficient absorption and removal of pollutants. Compared with the traditional fixed mesh wet layer structure, the gas-liquid mass transfer efficiency is improved, effectively improving the treatment effect.

[0018] 2. This invention effectively overcomes the technical bottlenecks of traditional fixed mesh systems, such as easy clogging, increased airflow resistance, and poor operational stability, by integrating an adaptive unblocking and cleaning mechanism with a flexible dynamic structure. This significantly improves the long-term operational reliability and industrial application adaptability of the equipment. Addressing the issue of trace amounts of viscous byproducts and dust in the tail gas of 2-ethylanthraquinone production easily depositing and adhering in traditional mesh structures, the equipment's built-in unblocking and cleaning components periodically perform targeted cleaning of the flow purification head, promptly removing dust accumulation and byproduct crystals within the microporous channels. This effectively prevents mesh blockage, maintains smooth airflow, and reduces airflow resistance within the tower. Simultaneously, the flexible suspension installation and reciprocating dynamic operation mode of the purification liquid conveyor can drive the flow of purification liquid through pressure fluctuations, reducing the retention and deposition of purification liquid on the surface of the flow purification head, further enhancing the anti-clogging effect. Compared to traditional fixed mesh wet layer structures, this equipment avoids a decrease in ventilation volume due to blockage, eliminating the need for frequent shutdowns for unblocking and effectively ensuring the continuity of 2-ethylanthraquinone production. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention. Figure 1 .

[0020] Figure 2 This is a three-dimensional schematic diagram of an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention. Figure 2 .

[0021] Figure 3 This is a front view of an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention.

[0022] Figure 4 yes Figure 3 Planar sectional view at section AA.

[0023] Figure 5 yes Figure 4 A three-dimensional schematic diagram.

[0024] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0025] Figure 7 This is a three-dimensional schematic diagram of an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention. Figure 3 .

[0026] Figure 8 This is an exploded schematic diagram of the waste gas purification component in an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention.

[0027] Figure 9 This is a three-dimensional schematic diagram of the flow purification head in an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention.

[0028] Figure 10 This is a partial structural schematic diagram of the reciprocating pusher device in an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone according to the present invention.

[0029] The numbers on the map are: 1. Tail gas absorption tower; 2. Mounting shell; 21. Fixed mounting shell; 22. Separation bottom shell; 221. Drain pipe; 23. Second linear actuator; 24. Guide rod; 3. One-way air intake device; 31. Air intake chamber; 32. Floating air bag; 33. One-way air intake channel; 34. One-way airflow valve; 4. Waste gas purification assembly; 41. Purified liquid conveyor; 411. Limiting mounting hole; 412. Filter screen; 413. Liquid outlet; 414. Flow chamber; 415. Liquid inlet pipe; 416. Limiting frame; 417. Snap-fit ​​mounting hole; 42. Flow purification head; 4 21. Spiral hole; 43. Return spring; 5. Reciprocating pushing device; 51. Sliding mounting bracket; 511. Push rod; 512. Adaptive ventilated push plate; 513. Airflow hole; 514. Movable baffle; 52. Rotary actuator; 53. Rotary drive disk; 54. Moving push rod; 6. Unblocking and cleaning assembly; 61. Backwashing device; 611. Strip flushing nozzle; 612. First rotary drive device; 62. Impurity cleaning device; 621. Rotating mounting bracket; 622. Cleaning brush; 623. First linear actuator; 624. Second rotary drive device. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 10 As shown, an environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone includes a high-efficiency compression and purification device installed at the bottom of the tail gas absorption tower 1. The high-efficiency compression and purification device includes a mounting housing 2, a one-way air inlet device 3, a waste gas purification component 4, a reciprocating pushing device 5, and a cleaning and unblocking component 6. The mounting housing 2 is fixedly installed at the bottom of the tail gas absorption tower 1. The one-way air inlet device 3 is installed on the side of the mounting housing 2 and is used to guide the waste gas into the interior of the mounting housing 2 in one direction. The waste gas purification component 4 is installed inside the mounting housing 2. 4 includes a purification liquid conveyor 41, which is slidably installed inside the mounting housing 2. Multiple return springs 43 are installed between the purification liquid conveyor 41 and the mounting housing 2. Several flow purification heads 42 are installed on the purification liquid conveyor 41 for airflow. A reciprocating pushing device 5 is installed inside the mounting housing 2, and the pushing end of the reciprocating pushing device 5 abuts against the top of the purification liquid conveyor 41. A dredging and cleaning component 6 is installed inside the mounting housing 2 and is used to dredge and clean the flow purification heads 42.

[0032] A closed cavity is constructed by mounting housing 2. The one-way air intake device 3 adopts one-way airflow to ensure that the airflow only enters the mounting housing 2 from the bottom of the tail gas absorption tower 1, avoiding secondary pollution caused by waste gas backflow. The waste gas purification component 4 consists of a purification liquid conveyor 41, a return spring 43, and a flow purification head 42. The purification liquid conveyor 41 is elastically suspended by the return spring 43, and the flow purification head 42 adopts a micropore array structure.

[0033] The reciprocating pushing device 5 generates vertical displacement by periodically pushing the purified liquid conveyor 41. When the purified liquid conveyor 41 is pressed down, the bottom volume of the mounting housing 2 decreases, the internal exhaust gas is forcibly compressed, and the increased pressure causes the airflow to accelerate through the microporous channels of the flow purification head 42. At this time, the purified liquid is continuously supplied from the conveyor to the flow purification head 42 under high pressure, forming a microporous structure covered by a liquid film. When the exhaust gas passes through, high-speed turbulent mixing is generated, realizing efficient mass transfer and pollutant absorption between the gas and liquid phases. When the conveyor returns to its original position, the return spring 43 releases energy to push the conveyor upward, the bottom volume of the mounting housing 2 increases to form a negative pressure, and the one-way air intake device 3 automatically opens to replenish new exhaust gas, completing a single cycle.

[0034] The unblocking and cleaning component 6 will regularly clean the flow purification head 42 to remove dust and by-product crystals and maintain smooth airflow.

[0035] This device enhances gas-liquid mixing efficiency through dynamic compression, promotes uniform distribution of purified liquid by utilizing pressure fluctuations generated by reciprocating motion, and solves the problem of easy clogging of traditional fixed mesh layers through an adaptive unblocking mechanism. It achieves a balance between mixing effect, airflow smoothness and long-term operational reliability, meeting the continuous, stable and efficient purification requirements of 2-ethylanthraquinone production waste gas.

[0036] See Figures 4 to 8 As shown, the purified liquid conveyor 41 has a flow chamber 414 inside, an inlet pipe 415 at the bottom, a number of limiting installation holes 411 on the purified liquid conveyor 41, a number of outlet holes 413 on the inner wall of the limiting installation holes 411, a filter screen 412 at the bottom of the limiting installation holes 411, and a limiting frame 416 on the limiting frame 416.

[0037] The purified liquid conveyor 41 has an internal flow chamber 414 as the core cavity for storing and distributing the purified liquid, and an integrated inlet pipe 415 at the bottom to allow for the directional input of external purified liquid sources. Multiple outlet holes 413 are evenly distributed axially along the inner wall of the flow chamber 414, forming a radial permeation channel to ensure that the purified liquid overflows evenly under pressure within the chamber. A bottom filter screen 412 with a limiting mounting hole 411 is used to filter particulate impurities in the exhaust gas.

[0038] The limiting frame 416 is mechanically coupled to the flow-through purification head 42 via the snap-fit ​​mounting hole 417, ensuring that the flow-through purification head 42 remains stable during axial pushing. When the purified liquid enters the flow chamber 414 through the inlet pipe 415, it is sprayed as micro-droplets through the outlet hole 413 under the pressure of the chamber, forming a liquid film layer on the surface of the flow-through purification head 42. The flow-through purification head 42 uses a porous media material, which adsorbs the purified liquid through capillary action and maintains a stable liquid film thickness, ensuring efficient mass transfer during exhaust gas flow.

[0039] See Figure 8 and Figure 9 As shown, the interior of the flow purification head 42 is provided with multiple spiral holes 421.

[0040] The flow-through purification head 42 is made of a water-absorbing porous medium material, with an internal array of multiple spiral pores 421. The water-absorbing material actively adsorbs the purification liquid through capillary action, forming a uniform liquid film layer on the surface to ensure efficient liquid-phase mass transfer during exhaust gas flow. The spiral pores 421 employ a spiral flow channel design, which extends the residence time of exhaust gas within the channels by altering the airflow path, while simultaneously generating a rotating turbulence effect to enhance the mixing intensity and contact efficiency of the gas and liquid phases.

[0041] When the purified liquid permeates through the outlet hole 413 of the purified liquid conveyor 41 to the surface of the flow purification head 42, the water-absorbing material quickly captures the droplets and maintains a stable liquid film thickness. When the exhaust gas passes through the spiral hole 421 at high speed under compression, the spiral flow channel guides the generation of turbulent vortices, promoting full collision and reaction between pollutant molecules in the exhaust gas and purified liquid molecules in the liquid film.

[0042] See Figures 2 to 5 As shown, the reciprocating pushing device 5 includes a sliding mounting bracket 51, a rotary driver 52, a rotary drive disk 53, and a movable push rod 54; The sliding mounting bracket 51 is slidably installed inside the mounting housing 2. A push rod 511 is installed on the sliding mounting bracket 51. An adaptive ventilated push plate 512 is installed at the end of the push rod 511 away from the sliding mounting bracket 51. The adaptive ventilated push plate 512 abuts against the top of the purified liquid conveyor 41. The rotary actuator 52 is fixed to the side of the mounting housing 2. Rotary drive disk 53 is fixedly mounted on the output end of rotary driver 52; One end of the movable push rod 54 is rotatably connected to the rotary drive disk 53, and the other end of the movable push rod 54 away from the rotary drive disk 53 is rotatably connected to the sliding mounting bracket 51.

[0043] The rotary actuator 52, serving as the power source, is fixed to the side of the mounting housing 2, and its output end is rigidly connected to the rotary drive disk 53. The rotary drive disk 53 is rotatably connected to one end of the movable push rod 54 via an eccentric shaft, and the other end of the movable push rod 54 is hinged to the sliding mounting bracket 51, forming a crank-slider mechanism. The sliding mounting bracket 51 is slidably mounted along the guide rail on the inner wall of the mounting housing 2, ensuring precise verticality of the motion trajectory and avoiding mechanical wear or pushing failure caused by swaying.

[0044] When the rotary actuator 52 is activated, the rotary drive disk 53 generates continuous rotational motion, which is converted into linear reciprocating motion of the sliding mounting bracket 51 via the moving push rod 54. The sliding mounting bracket 51 is connected to the adaptive ventilated push plate 512 via the push rod 511. The adaptive ventilated push plate 512 allows gas to pass through during the pushing process, preventing pressure imbalance in the closed chamber. The adaptive ventilated push plate 512 directly contacts the top of the purified liquid conveyor 41, achieving a balance between rigid connection and flexible buffering in power transmission.

[0045] During the pushing phase, the sliding mounting bracket 51 moves downward to push the adaptive ventilated push plate 512 down to press down the purification liquid conveyor 41, compressing the bottom volume of the mounting housing 2 and causing the exhaust gas to accelerate through the flow purification head 42; during the reset phase, the rotary drive disk 53 continues to rotate, driving the sliding mounting bracket 51 upward, and the reset spring 43 releases energy to push the purification liquid conveyor 41 upward, forming a negative pressure to draw in new exhaust gas and completing a single cycle.

[0046] See Figures 5 to 6 As shown, the adaptive breathable push plate 512 is provided with a number of airflow holes 513, and each airflow hole 513 is rotatably mounted with a movable baffle plate 514.

[0047] The push plate body is made of high-strength lightweight alloy substrate, with multiple airflow holes 513 arrayed on the surface. Each hole is embedded with a rotating movable baffle 514. The movable baffle 514 is connected to the edge of the hole through a hinge to achieve opening and closing control. When the push plate is pressed down, the volume at the bottom of the mounting housing 2 is compressed, causing the internal pressure to rise. The exhaust gas flows upward and impacts the movable baffle 514, causing it to flip outward around the hinge and open, forming an airflow channel. When the push plate rises, the return spring 43 drives the purified liquid conveyor 41 to rise and form a negative pressure. At this time, the movable baffle 514 automatically closes due to gravity and the negative pressure of the airflow, maintaining the negative pressure state of the chamber to accelerate the intake of new exhaust gas.

[0048] See Figures 2 to 4 As shown, the unclogging and cleaning component 6 includes a backwashing device 61 and a debris cleaning device 62; the backwashing device 61 is installed on the reciprocating pushing device 5; the debris cleaning device 62 is installed at the bottom of the mounting housing 2.

[0049] The backwashing device 61 is integrated into the reciprocating pusher device 5, and delivers a directional cleaning fluid flow through a pump. The cleaning fluid is sprayed at high speed through the backwash nozzle array onto the surface of the flow purification head 42, and the jet impact force is used to peel off particulate impurities and by-product crystals adhering to the inner wall of the micropores.

[0050] The impurity cleaning device 62 is installed at the bottom of the mounting housing 2. The impurity cleaning device 62 performs mechanical cleaning on the bottom of the purified liquid conveyor 41 to remove loose particles remaining after backwashing.

[0051] By leveraging the efficient stripping properties of hydraulic backflushing and the deep cleaning properties of mechanical sweeping, the flow purification head 42 achieves adaptive anti-clogging and long-term stable operation, solving the problems of easy clogging and frequent maintenance of traditional fixed purification components, and meeting the needs of 2-ethylanthraquinone production waste gas treatment equipment for continuous and efficient purification and low maintenance costs.

[0052] See Figure 4 and Figure 10 As shown, the backwashing device 61 includes a strip-shaped flushing nozzle 611 and a first rotary drive device 612; The first rotary drive device 612 is fixedly mounted on the sliding mounting bracket 51, and the output end of the first rotary drive device 612 is connected to the push rod 511 for transmission. Multiple strip-shaped flushing nozzles 611 are provided and are evenly distributed on the adaptive ventilated push plate 512. The strip-shaped flushing nozzles 611 are used to deliver cleaning fluid to the flow purification head 42.

[0053] Strip-shaped rinsing nozzles 611 are evenly distributed circumferentially along the adaptive ventilated push plate 512, forming a ring-shaped spray array. When the first rotary drive device 612 is activated, the push rod 511 drives the adaptive ventilated push plate 512 to rotate, causing the strip-shaped rinsing nozzles 611 to rotate synchronously to a preset angle, achieving precise alignment between the strip-shaped rinsing nozzles 611 and the flow-through purification head 42. During the rinsing stage, high-pressure cleaning fluid impacts the surface of the flow-through purification head 42 at high speed through the strip-shaped rinsing nozzles 611. The jet impact force strips away particulate impurities and by-product crystals adhering to the micropores.

[0054] See Figure 4 and Figure 5 As shown, the impurity cleaning device 62 includes a rotating mounting frame 621, a cleaning brush 622, a first linear actuator 623, and a second rotary drive device 624. The second rotary drive device 624 is mounted on the bottom of the mounting housing 2. The rotating mounting frame 621 is slidably mounted on the output end of the second rotary drive device 624. Multiple cleaning brushes 622 are provided and evenly distributed on the rotating mounting frame 621. The cleaning brushes 622 are detachably connected to the rotating mounting frame 621. The first linear actuator 623 is fixedly mounted on the bottom of the mounting housing 2. A connecting plate is installed on the output end of the first linear actuator 623, and the connecting plate is rotatably connected to the rotating mounting frame 621.

[0055] The second rotary drive device 624 is fixedly installed at the bottom of the mounting housing 2. Its output end is connected to the rotating mounting bracket 621 via a sliding guide rail, realizing a composite transmission of rotary motion and vertical displacement. Multiple detachable cleaning brushes 622 are evenly distributed on the surface of the rotating mounting bracket 621, and the modular design facilitates quick replacement and maintenance.

[0056] The first linear actuator 623 is fixed to the bottom of the mounting housing 2, and drives the connecting plate to move vertically. The connecting plate and the rotating mounting frame 621 are connected by a ball joint to achieve degree of freedom compensation during rotational drive. When the backwashing device 61 washes the flow purification head 42, impurities fall to the bottom of the mounting housing 2. At this time, the first linear actuator 623 is activated, pushing the connecting plate upward and driving the rotating mounting frame 621 to move upward to the preset position, so that the cleaning brush 622 contacts the surface of the filter screen 412 of the purification liquid conveyor 41.

[0057] Subsequently, the second rotary drive device 624 is activated, driving the rotating mounting bracket 621 to generate a rotating motion. The cleaning brush 622 performs a rotary cleaning of the filter screen 412, removing residual particulate impurities and by-product crystals.

[0058] See Figure 1 and Figure 2 As shown, the one-way air intake device 3 includes an air intake chamber 31 and a one-way air intake channel 33; the air intake chamber 31 is located on the side of the mounting housing 2, and a floating air bag 32 is provided inside the air intake chamber 31; the one-way air intake channel 33 is installed at the output end of the air intake chamber 31, and the output end of the one-way air intake channel 33 is connected to the inside of the mounting housing 2, and a one-way airflow valve 34 is provided on the one-way air intake channel 33.

[0059] The intake chamber 31 serves as a buffer cavity for exhaust gas input and is connected to an external exhaust gas delivery pipeline via a flange connection to achieve directional introduction of exhaust gas. A floating air bag 32, made of elastic and corrosion-resistant material, is installed inside the chamber. The volume of the intake chamber 31 is adaptively adjusted by changes in the air bag's volume. When the exhaust gas delivery volume increases, the floating air bag 32 expands under pressure, increasing the effective gas storage space and maintaining stable intake pressure; when the delivery volume decreases, the air bag contracts to release the stored gas, preventing interruption of intake.

[0060] The one-way air intake channel 33 adopts a gradually expanding and contracting flow channel design, with a built-in one-way airflow valve 34 as the core control element. When the volume of the bottom of the mounting housing 2 is compressed, causing the internal pressure to rise, the one-way airflow valve 34 closes tightly under the action of the positive pressure difference, preventing the exhaust gas from flowing back to the intake chamber 31; when the volume of the mounting housing 2 expands during the reset phase, forming a negative pressure, the one-way airflow valve 34 automatically opens under the action of the positive pressure on the side of the intake chamber 31, realizing the one-way replenishment of exhaust gas.

[0061] The coordinated design of the floating air bag 32 and the one-way airflow valve 34 forms a dual protection mechanism of pressure buffering and one-way flow. The elastic adjustment characteristics of the air bag can absorb the fluctuation of the intake pressure and avoid the frequent opening and closing of the one-way airflow valve 34 due to sudden pressure changes; the fast response characteristics of the one-way airflow valve 34 ensure that strict one-way airflow is maintained in the compression-expansion cycle, preventing secondary pollution caused by exhaust gas backflow.

[0062] This device achieves stable unidirectional introduction of exhaust gas and suppression of pressure fluctuations by utilizing the volume adaptive characteristics of the air intake chamber 31, the pressure sensitive characteristics of the one-way airflow valve 34, and the elastic buffering characteristics of the floating air bag 32. It solves the problems of easy backflow and pressure imbalance in traditional fixed air intake devices, and meets the requirements of high-efficiency compression and purification devices for continuous and stable air intake and backflow prevention protection.

[0063] See Figures 1 to 3 As shown, the mounting housing 2 includes a fixed mounting housing 21, a separating bottom housing 22, a second linear actuator 23, and a guide rod 24. The fixed mounting housing 21 is fixedly installed at the bottom of the exhaust gas absorption tower 1. The separating bottom housing 22 is located at the bottom of the fixed mounting housing 21 and is coaxially arranged with the fixed mounting housing 21. The bottom of the separating bottom housing 22 is also provided with a drain pipe 221. The second linear actuator 23 is fixedly installed on the fixed mounting housing 21, and the output end of the second linear actuator 23 is connected to the separating bottom housing 22. The guide rod 24 is fixedly installed on the separating bottom housing 22 and is slidably connected to the fixed mounting housing 21.

[0064] The mounting housing 2 adopts a double-layer split design, consisting of a fixed mounting housing 21 and a separation bottom housing 22 coaxially stacked to form a closed cavity. The fixed mounting housing 21 is rigidly fixed to the bottom of the exhaust gas absorption tower 1 via a flange connection; the separation bottom housing 22 is detachably connected to the fixed mounting housing 21 via a second linear actuator 23, and a guide rod 24 passes through both along the axial direction to ensure that the movement trajectory is precise and vertical during separation, avoiding sealing failure or mechanical wear caused by sway.

[0065] When the equipment is operating in normal purification mode, the separating bottom shell 22 and the fixed mounting shell 21 are rigidly sealed by an annular sealing ring, maintaining stable internal pressure. When maintenance or replacement of the flow purification head 42 is required, the second linear actuator 23 is activated, pushing the separating bottom shell 22 axially downward along the guide rod 24, separating the fixed mounting shell 21 from the separating bottom shell 22, exposing the internal exhaust gas purification assembly 4, which facilitates quick disassembly and replacement of the flow purification head 42 and the purification liquid delivery device 41 by personnel.

[0066] The bottom of the separating shell 22 integrates a drain pipe 221, which adopts a sloping flow channel design. Gravity guides the deposited purification liquid, impurities, and by-product crystals to converge towards the drain port, preventing secondary pollution or corrosion caused by bottom liquid accumulation. The drain pipe 221 is equipped with a solenoid valve and a liquid level sensor to realize timed drainage or liquid level-triggered drainage, ensuring the cleanliness of the cavity.

[0067] Specific working principle: A closed cavity is constructed by mounting housing 2. The one-way air intake device 3 adopts one-way airflow to ensure that the airflow only enters the mounting housing 2 from the bottom of the tail gas absorption tower 1, avoiding secondary pollution caused by waste gas backflow. The waste gas purification component 4 consists of a purification liquid conveyor 41, a return spring 43, and a flow purification head 42. The purification liquid conveyor 41 is elastically suspended by the return spring 43, and the flow purification head 42 adopts a micropore array structure.

[0068] The reciprocating pushing device 5 generates vertical displacement by periodically pushing the purified liquid conveyor 41. When the purified liquid conveyor 41 is pressed down, the bottom volume of the mounting housing 2 decreases, the internal exhaust gas is forcibly compressed, and the increased pressure causes the airflow to accelerate through the microporous channels of the flow purification head 42. At this time, the purified liquid is continuously supplied from the conveyor to the flow purification head 42 under high pressure, forming a microporous structure covered by a liquid film. When the exhaust gas passes through, high-speed turbulent mixing is generated, realizing efficient mass transfer and pollutant absorption between the gas and liquid phases. When the conveyor returns to its original position, the return spring 43 releases energy to push the conveyor upward, the bottom volume of the mounting housing 2 increases to form a negative pressure, and the one-way air intake device 3 automatically opens to replenish new exhaust gas, completing a single cycle. The unblocking and cleaning component 6 periodically cleans the flow purification head 42 to remove dust and by-product crystals and maintain smooth airflow.

[0069] By enhancing gas-liquid mixing efficiency through dynamic compression and promoting uniform distribution of purified liquid by utilizing pressure fluctuations generated by reciprocating motion, while solving the problem of easy clogging of traditional fixed mesh layers through an adaptive unblocking mechanism, a balance is achieved between mixing effect, airflow smoothness and long-term operational reliability, meeting the continuous, stable and efficient purification requirements of 2-ethylanthraquinone production waste gas.

[0070] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An environmentally friendly waste gas treatment device for the production of 2-ethylanthraquinone, comprising a high-efficiency compression and purification device installed at the bottom of the tail gas absorption tower (1), characterized in that, The high-efficiency compression purification device includes a housing (2), a one-way air intake device (3), an exhaust gas purification component (4), a reciprocating push device (5), and a dredging and cleaning component (6). The mounting housing (2) is fixedly installed at the bottom of the tail gas absorption tower (1); One-way air intake device (3) is installed on the side of the mounting housing (2). One-way air intake device (3) is used to guide exhaust gas into the interior of the mounting housing (2) in one direction. The exhaust gas purification component (4) is installed inside the mounting housing (2). The exhaust gas purification component (4) includes a purification liquid conveyor (41). The purification liquid conveyor (41) is slidably installed inside the mounting housing (2). Multiple return springs (43) are installed between the purification liquid conveyor (41) and the mounting housing (2). Several flow purification heads (42) are installed on the purification liquid conveyor (41). The flow purification heads (42) are used to circulate airflow. The reciprocating pusher (5) is installed inside the mounting housing (2), and the pushing end of the reciprocating pusher (5) abuts against the top of the purified liquid conveyor (41); The unblocking and cleaning component (6) is installed inside the mounting housing (2) and is used to unblock and clean the flow purification head (42).

2. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 1, characterized in that, The purified liquid conveyor (41) has a flow chamber (414) inside, an inlet pipe (415) at the bottom of the purified liquid conveyor (41), a number of limiting installation holes (411) on the purified liquid conveyor (41), a number of outlet holes (413) on the inner wall of the limiting installation hole (411), a filter screen (412) at the bottom of the limiting installation hole (411), and the purified liquid conveyor (41) also includes a limiting frame (416), a number of snap-fit ​​installation holes (417) on the limiting frame (416).

3. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 2, characterized in that, The inside of the flow purification head (42) is provided with multiple spiral holes (421).

4. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 1, characterized in that, The reciprocating push device (5) includes a sliding mounting bracket (51), a rotary driver (52), a rotary drive disk (53), and a movable push rod (54). The sliding mounting bracket (51) is slidably mounted inside the mounting housing (2). A push rod (511) is mounted on the sliding mounting bracket (51). An adaptive ventilated push plate (512) is mounted on the end of the push rod (511) away from the sliding mounting bracket (51). The adaptive ventilated push plate (512) abuts against the top of the purified liquid conveyor (41). The rotary actuator (52) is fixed to the side of the mounting housing (2). The rotary drive disk (53) is fixedly installed at the output end of the rotary driver (52); One end of the movable push rod (54) is rotatably connected to the rotary drive disk (53), and the other end of the movable push rod (54) away from the rotary drive disk (53) is rotatably connected to the sliding mounting bracket (51).

5. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 4, characterized in that, The adaptive breathable push plate (512) is provided with several airflow holes (513), and each airflow hole (513) is rotatably mounted with a movable baffle plate (514).

6. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 4, characterized in that, The unclogging and cleaning component (6) includes a backwashing device (61) and an impurity cleaning device (62). The backwashing device (61) is installed on the reciprocating pusher (5); The impurity cleaning device (62) is installed at the bottom of the mounting housing (2).

7. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 6, characterized in that, The backwashing device (61) includes a strip-shaped flushing nozzle (611) and a first rotary drive device (612). The first rotary drive device (612) is fixedly mounted on the sliding mounting bracket (51), and the output end of the first rotary drive device (612) is connected to the push rod (511) for transmission. Multiple strip-shaped flushing nozzles (611) are provided and evenly distributed on the adaptive ventilated push plate (512). The strip-shaped flushing nozzles (611) are used to deliver cleaning fluid to the flow purification head (42).

8. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 6, characterized in that, The impurity cleaning device (62) includes a rotating mounting bracket (621), a cleaning brush (622), a first linear drive (623), and a second rotary drive (624). The second rotary drive (624) is mounted on the bottom of the mounting housing (2); The rotating mounting bracket (621) is slidably mounted on the output end of the second rotary drive device (624); Multiple cleaning brushes (622) are provided and evenly distributed on the rotating mounting bracket (621). The cleaning brushes (622) and the rotating mounting bracket (621) are detachably connected. The first linear actuator (623) is fixedly installed at the bottom of the mounting housing (2). A connecting plate is installed at the output end of the first linear actuator (623), and the connecting plate is rotatably connected to the rotating mounting bracket (621).

9. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 1, characterized in that, The one-way air intake device (3) includes an air intake chamber (31) and a one-way air intake channel (33); The air intake chamber (31) is located on the side of the mounting housing (2), and a floating air bag (32) is provided inside the air intake chamber (31). A one-way air intake channel (33) is installed at the output end of the air intake chamber (31). The output end of the one-way air intake channel (33) is connected to the interior of the mounting housing (2). A one-way airflow valve (34) is provided on the one-way air intake channel (33).

10. The environmentally friendly waste gas treatment equipment for the production of 2-ethylanthraquinone according to claim 1, characterized in that, The mounting housing (2) includes a fixed mounting housing (21), a separate bottom housing (22), a second linear actuator (23), and a guide rod (24). The fixed mounting shell (21) is fixedly installed at the bottom of the exhaust gas absorption tower (1); The separation bottom shell (22) is located at the bottom of the fixed mounting shell (21). The separation bottom shell (22) is coaxially arranged with the fixed mounting shell (21). The bottom of the separation bottom shell (22) is also provided with a drain pipe (221). The second linear actuator (23) is fixedly mounted on the fixed mounting housing (21), and the output end of the second linear actuator (23) is connected to the separate bottom housing (22); The guide rod (24) is fixedly installed on the separation bottom shell (22), and the guide rod (24) is slidably connected to the fixed installation shell (21).

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