An environmental protection treatment device for alkali recovery and waste gas and wastewater treatment of an aluminum extrusion pot die

Abstract

The present invention belongs to the field of aluminum extrusion processing, and discloses an aluminum extrusion die sheet alkali recovery and waste gas and wastewater environmental protection treatment device, comprising a soaking tank, a sealing device movably provided above the soaking tank, a placing device movably provided below the sealing device, a precipitation device fixedly provided on one side of the soaking tank, a recovery device fixedly provided on the side of the precipitation device away from the soaking tank, a pressing device fixedly provided on the side of the recovery device away from the precipitation device, an exhaust device fixedly provided above the precipitation device and the recovery device, a purification device fixedly provided above the exhaust device, and a plurality of washing towers fixedly provided above the purification device. The present invention solves the problem that some treatment devices in the aluminum extrusion die-making process in the prior art are either unsatisfactory in the efficiency of sheet alkali recovery, or cannot comprehensively and deeply purify the waste gas and wastewater to meet environmental protection standards, and are difficult to meet the actual needs of the aluminum extrusion die-making process for resource recovery and environmental protection, and is suitable for aluminum extrusion processing.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum extrusion processing, and in particular to an aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental protection treatment device. Background Art

[0002] During the aluminum extrusion die-making process, flake caustic soda is often used to clean and maintain the molds. However, this process presents numerous environmental challenges. Firstly, the used flake caustic soda is discharged with wastewater, resulting in a significant waste of flake caustic soda resources. Furthermore, due to its strong alkalinity, the discharge of untreated wastewater can severely damage the aquatic ecosystem, altering the water's pH and endangering aquatic life. Furthermore, it fails to meet the emission requirements of environmental regulations. Secondly, the die-making process produces exhaust gases containing alkaline gases, volatile organic compounds (VOCs), and other odorous components. Directly venting these gases into the atmosphere would inevitably reduce surrounding air quality, adversely affecting the health of operators and the living environment of surrounding residents.

[0003] However, some existing treatment devices either have unsatisfactory efficiency in caustic soda flake recovery or are unable to comprehensively and deeply purify waste gas and wastewater to meet environmental protection standards, making it difficult to meet the actual needs of the aluminum extrusion die-making process for resource recovery and environmental protection.

[0004] Therefore, based on the above content, the present invention proposes an aluminum extrusion die caustic soda recovery and waste gas and wastewater environmental protection treatment device. By collecting, precipitating, squeezing, recycling, separating and reusing the caustic soda, 80% of the caustic soda can be saved). At the same time, in terms of waste gas, photocatalysts are used to molecularly crack the odor components, and the waste gas is filtered after disinfection and sterilization, and then enters the washing tower for cleaning to ensure that the clean air meets the emission standards, with an efficiency of 97%, and is directly discharged in compliance with the standards. After the wastewater treatment meets the standards, the water required for the die can be recycled, effectively overcoming the shortcomings of the existing technology, realizing efficient caustic soda recovery and proper treatment of wastewater and exhaust gas, reducing pollution to the environment, and meeting the comprehensive needs of resource recovery and environmental protection in the aluminum extrusion die caustic soda process. Summary of the Invention

[0005] The present invention aims to provide an aluminum extrusion die sheet alkali recovery and waste gas and wastewater environmental protection treatment device to solve the problem that some treatment devices in the existing technology in the aluminum extrusion die making process either have unsatisfactory efficiency in sheet alkali recovery or cannot comprehensively and deeply purify waste gas and wastewater to meet environmental protection standards, making it difficult to meet the actual needs of the aluminum extrusion die making process for resource recovery and environmental protection.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The technical solution provided by the present invention is: an alkali recovery and waste gas and wastewater environmental treatment device for aluminum extrusion boiler mold sheets, comprising a soaking tank, a sealing device movably provided above the soaking tank, a placement device movably provided below the sealing device, a settling device fixedly provided on one side of the soaking tank, a recovery device fixedly provided on a side of the settling device away from the soaking tank, a pressing device fixedly provided on a side of the recovery device away from the settling device, an exhaust device fixedly provided above the sealing device, a purification device fixedly provided above the exhaust device, a plurality of washing towers fixedly provided above the purification device, and a transmission device provided in both the placement device and the settling device;

[0008] The sealing device includes a sealing telescopic rod fixedly installed at both ends of the immersion tank, a sealing cover plate fixedly provided above the sealing telescopic rod, a notch provided on the surface of the sealing cover plate, and a sealing groove provided below the sealing cover plate;

[0009] The placing device includes a placing rod embedded in the sealing groove, the placing rod is movably adapted to the sealing groove, a placing plate is fixedly provided below the placing rod, arc-shaped plates are fixedly provided at both ends of the inner wall of the placing plate, and a placing groove is opened below the placing plate;

[0010] The sedimentation device includes a sedimentation box fixedly installed on one side of the soaking tank, a sedimentation port is opened at one end of the sedimentation box, a control valve is provided in the sedimentation port, the sedimentation port is communicated with the soaking tank, a sedimentation inclined plate is fixedly provided at one end of the inner wall of the sedimentation box, a plurality of sedimentation card slots are fixedly provided on the inner wall of the sedimentation box, sedimentation filter plates are embedded in the sedimentation card slots, a sedimentation box is fixedly provided below the sedimentation inclined plate, and a discharge port is provided below the sedimentation box;

[0011] The recovery device includes a recovery box fixedly installed at one end of the sedimentation box, a recovery baffle fixedly provided at one end where the recovery box and the sedimentation box meet, a recovery filter plate fixedly provided on one side of the recovery baffle, a heater fixedly provided at the other end of the inner wall of the recovery box, recovery pipes fixedly provided at both ends of the recovery box, and the recovery pipes fixedly connected to and communicated with the soaking tank;

[0012] The transmission device includes a first transmission rod movably installed in the sedimentation box, the surface of the first transmission rod is fixedly provided with a water wheel, the surface of the first transmission rod is fixedly provided with a first bevel gear, one side of the first bevel gear is meshed with a second bevel gear, one end of the second bevel gear is fixedly provided with a second transmission rod, the other end of the second transmission rod is fixedly provided with a third bevel gear, the surface of the third bevel gear is meshed with a fourth bevel gear, an active rod is fixedly provided in the fourth bevel gear, a transmission fan blade is fixedly provided below the active rod, a fifth bevel gear is meshed with the surface of the fourth bevel gear, one end of the fifth bevel gear is fixedly provided with a third transmission rod, the surface of the third transmission rod is fixedly provided with a connecting plate, the other end of the connecting plate is movably connected to the active rod, the other end of the third transmission rod is fixedly provided with a transmission gear, the surface of the transmission gear is meshed with a driven gear, a driven rod is movably provided in the driven gear, the driven rod is fixedly connected to both sides of the placement slot below the placement plate, and a roller is fixedly provided on one side of the driven gear;

[0013] A first gear is fixed above the active rod, the first gear is installed above the sealing cover plate, a second gear is meshed with one side of the first gear, a driven shaft is fixed above the second gear, a first blade gear is fixed above the driven shaft, and a second blade gear is meshed with one side of the first blade gear.

[0014] Furthermore, a sewage outlet is fixedly provided on one side below the soaking tank.

[0015] Furthermore, the several sedimentation filter plates in the sedimentation box are sand filtration, activated carbon filtration and ultrafiltration membrane filtration, thereby filtering the wastewater in turn to improve the clarity and purity of the wastewater.

[0016] Furthermore, additive boxes are fixedly provided on both sides of the inner wall of the sedimentation box, and the additive boxes are filled with precipitants.

[0017] Furthermore, the pressing device includes a pressing box fixedly installed at one end of the recovery box, a pressing telescopic rod is fixedly provided at one end of the pressing box, a plate and frame filter plate is fixedly provided at one end of the pressing telescopic rod, and a pressing cover is provided above the pressing box.

[0018] Furthermore, the exhaust device includes an exhaust plate fixedly installed above the sealing device, and exhaust fans are evenly arranged above the exhaust plate, and the exhaust fans are fixedly connected to the second fan blade gear.

[0019] Furthermore, the purification device includes a purification box fixedly installed above the exhaust plate, photocatalyst deodorization devices are fixedly provided at both ends of the inner wall of the purification box, and a plurality of purification filter plates are evenly provided above the inner wall of the purification box.

[0020] Furthermore, a photocatalyst coating reaction bed and an ultraviolet light source are provided inside the photocatalyst deodorizing device.

[0021] The beneficial effects of this technical solution are:

[0022] (1) Through a series of perfect treatment processes such as precipitation, recovery, and pressing, caustic soda can be effectively recovered from wastewater, realizing the recycling of caustic soda resources, reducing the waste of caustic soda, and lowering the raw material cost of enterprises in the aluminum extrusion die-making process. At the same time, it also reduces the pollution to the water environment caused by the discharge of caustic soda.

[0023] (2) The multi-stage filtration in the sedimentation device and the rational design of the entire wastewater treatment process enable the wastewater to be deeply purified and various impurities and pollutants to be removed. The treated wastewater can be recycled through recovery pipes, etc., which saves water resources and avoids the damage to the environment caused by direct discharge of wastewater, thus meeting environmental protection requirements.

[0024] (3) The exhaust gas treatment system, which consists of an exhaust device, a purification device and a washing tower, uses a combination of photocatalytic deodorization, filter plate filtration and washing liquid cleaning from collection to deep purification. It can completely remove various harmful components in the exhaust gas, such as alkaline gases, VOCs, odor components, etc., to ensure that the exhaust gas is stably discharged in compliance with the standards, effectively improve the atmospheric environment quality in the workshop and its surroundings, and protect the health of operators and the living environment of surrounding residents.

[0025] (4) The overall structural design of the device is compact and reasonable, with each part tightly connected and working smoothly together. At the same time, the design of components such as the sealing device and the placement device facilitates the placement and removal of the mold pieces and the daily operation and maintenance of the equipment. Reasonable automation control can be combined with the corresponding control system to improve the operating efficiency of the entire device and reduce the difficulty and workload of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the structural schematic diagrams of an aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental protection treatment device proposed by the present invention;

[0027] Figure 2 This is the second structural diagram of an alkali recovery and waste gas and wastewater environmental treatment device for aluminum extrusion boiler molds proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of an expanded device for alkali recovery and waste gas and wastewater environmental treatment of aluminum extrusion boiler molds proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the split structure of the placement device in the aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental treatment device proposed by the present invention;

[0030] Figure 5 This is a schematic structural diagram of the overall cross-section of an aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental treatment device proposed by the present invention;

[0031] Figure 6 for Figure 5 A in the middle is an enlarged structural diagram;

[0032] Figure 7 This is a schematic cross-sectional planar structure diagram of an aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental protection treatment device proposed by the present invention.

[0033] The names of the corresponding marks in the accompanying drawings are: 1. soaking tank; 2. sealing device; 3. placing device; 4. sewage outlet; 5. sedimentation device; 6. recovery device; 7. pressing device; 8. exhaust device; 9. purification device; 10. washing tower; 11. transmission device; 201. sealing telescopic rod; 202. sealing cover plate; 203. sealing groove; 301. placing plate; 302. placing rod; 303. curved plate; 501. sedimentation box; 502. sedimentation outlet; 503. sedimentation inclined plate; 504. sedimentation card slot; 505. sedimentation filter plate; 506. additive box; 507. sedimentation box; 508. discharge outlet; 601. recovery box; 602. recovery baffle; 603. recovery filter plate; 604. heater; 605. recovery pipe; 70 1. Press box; 702. Press telescopic rod; 703. Plate and frame filter plate; 704. Press cover plate; 801. Exhaust plate; 802. Exhaust fan; 901. Purification box; 902. Photocatalyst deodorization device; 903. Purification filter plate; 1101. First transmission rod; 1102. Water wheel; 1103. First bevel gear; 1104. Second bevel gear; 1105. Second transmission rod; 1106. Third bevel gear; 1107. Fourth bevel gear; 1108. Active rod; 1109. Transmission blade; 1110. Fifth bevel gear; 1111. Third transmission rod; 1112. Connecting plate; 1113. Transmission gear; 1114. Driven gear; 1115. Driven rod; 1116. Roller; 1117. Second blade gear. ; 1118, first gear; 1119, second gear; 1120, driven shaft; 1121, first fan gear. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1:

[0036] See also Figure 1-7The present invention provides a technical solution: an alkali recovery and waste gas and wastewater environmental protection treatment device for aluminum extrusion boiler molds, including a soaking tank 1. The soaking tank 1 is the starting part of the entire treatment process and is mainly used for soaking the aluminum extrusion boiler molds. The material thereof is made of alkali corrosion-resistant materials such as fiberglass, etc., and has sufficient strength and good sealing to accommodate the flake alkali solution and the boiler molds to be treated. A sewage outlet 4 is fixedly installed on one side below the soaking tank 1. The sewage outlet 4 can be opened regularly to discharge impurities precipitated at the bottom of the soaking tank 1 and to empty the liquid in the tank under specific maintenance conditions. A sealing device 2 is movably installed above the soaking tank 1. The sealing device 2 includes a sealing telescopic rod 201 fixedly installed at both ends of the soaking tank 1. The sealing telescopic rod 201 is electrically connected Connect the power supply and control device, and fix the sealing cover 202 above the sealing telescopic rod 201. The surface of the sealing cover 202 is provided with a notch, and a sealing groove 203 is provided below the sealing cover 202. The sealing telescopic rod 201 is fixedly installed at both ends of the immersion tank 1, and an electric or pneumatic telescopic rod structure is adopted to realize telescopic movement, providing power support for the opening and closing of the sealing cover 202. It has sufficient thrust and pulling force to ensure that the sealing cover 202 can move stably, ensure the sealing performance of the sealing cover 202, and prevent exhaust gas leakage in the closed state. The sealing cover 202 is located above the sealing telescopic rod 201, and is fixedly connected to the sealing telescopic rod 201. Under the drive of the telescopic rod, it can cover the top of the immersion tank 1 or The sealing groove 203 is symmetrically provided under the sealing cover 202. The sealing groove 203 is designed to be movably adapted to the placement rod 302 of the placement device 3 to ensure that the connection between the two is convenient for the installation and removal of the placement device 3, and can also ensure a good sealing effect to prevent the exhaust gas generated during the soaking process from escaping. The placement device 3 is movably installed under the sealing device 2. The placement device 3 includes a placement rod 302 embedded in the sealing groove 203. The placement rod 302 is movably adapted to the sealing groove 203. A placement plate 301 is fixedly installed under the placement rod 302, and an arc-shaped plate 303 is fixedly installed at both ends of the inner wall of the placement plate 301. A placement groove is provided under the placement plate 301, wherein the placement plate 301 is fixed under the placement rod 302, and its shape and The size is designed according to the internal space of the soaking tank 1 and the number and specifications of the mold pieces to be processed. It is used to place aluminum extruded mold pieces to ensure that the mold pieces can be fully immersed in the caustic soda solution and to facilitate subsequent cleaning and other operations. The placement rod 302 is embedded in the sealing groove 203 and movably adapted to the sealing groove 203, so that the placement device 3 as a whole can be easily installed on or removed from the sealing device 2, so as to facilitate the placement or removal of the mold pieces on the placement plate 301. The arc plate 303 is fixed at both ends of the inner wall of the placement plate 301. Its arc design can play a certain role in limiting and fixing the mold pieces placed on the placement plate 301, preventing the mold pieces from being displaced or damaged due to shaking, collision, etc. during the soaking process, thereby ensuring the effect of the soaking treatment.A sedimentation device 5 is fixedly installed on one side of the soaking tank 1. The sedimentation device 5 includes a sedimentation box 501 fixedly installed on one side of the soaking tank 1. A sedimentation port 502 is opened at one end of the sedimentation box 501. A control valve is installed in the sedimentation port 502. The sedimentation port 502 is communicated with the soaking tank 1. A sedimentation inclined plate 503 is fixedly installed on one end of the inner wall of the sedimentation box 501. A plurality of sedimentation slots 504 are fixedly installed on the inner wall of the sedimentation box 501. Sedimentation filter plates 505 are embedded in the sedimentation slots 504. A sedimentation box 507 is fixedly installed below the sedimentation inclined plate 503. A discharge port 508 is installed below the sedimentation box 507. The plurality of sedimentation filter plates 505 in the sedimentation box 501 are sand filtration, activated carbon filtration and ultrafiltration membrane filtration, thereby filtering the wastewater in turn to improve the clarity and purity of the wastewater. Cleanliness, additive boxes 506 are fixedly installed on both sides of the inner wall of the sedimentation box 501, and the additive boxes 506 are filled with precipitants, wherein the sedimentation box 501 is fixedly installed on one side of the soaking tank 1, and is communicated with the soaking tank 1 through the sedimentation port 502, and a control valve component is installed in the sedimentation port 502 to control the flow rate and time of wastewater flowing from the soaking tank 1 into the sedimentation box 501, and a sedimentation inclined plate 503 is fixedly installed at one end of the inner wall of the sedimentation box 501, and the sedimentation inclined plate 503 helps the precipitated impurities to slide along the inclined plate to the bottom, which is convenient for centralized cleaning, and a number of sedimentation card slots 504 are fixedly installed on the inner wall of the sedimentation box 501, and the sedimentation filter plates 505 are all embedded in the sedimentation card slots 504. The design of the sedimentation card slots 504 is convenient for replacing and cleaning the sedimentation filter plates 505. 05 adopts different filtering methods such as sand filtration, activated carbon filtration and ultrafiltration membrane filtration, so as to filter the wastewater in turn and improve the clarity and purity of the wastewater. In addition, additive boxes 506 are fixedly installed on both sides of the inner wall of the sedimentation tank 501. The additive box 506 is filled with a precipitant such as polyaluminum chloride, etc. The precipitant can be slowly released into the wastewater in the sedimentation tank 501 as needed to promote the coagulation and precipitation of impurities in the wastewater. The sedimentation port 502 serves as a channel for the flow of wastewater between the soaking tank 1 and the sedimentation tank 501. Its size and position enable the wastewater to flow smoothly into the sedimentation tank 501, and it can be kept closed during normal soaking to avoid the inadequately reacted caustic soda solution from flowing into the sedimentation tank 501 too early and affecting the treatment effect. The sedimentation device 5 is away from the soaking tank 1. A recovery device 6 is fixedly installed on one side of the pool 1. The recovery device 6 includes a recovery box 601 fixedly installed at one end of the sedimentation box 501, a recovery baffle 602 is fixedly installed at one end where the recovery box 601 connects to the sedimentation box 501, a recovery filter plate 603 is fixedly installed on one side of the recovery baffle 602, a heater 604 is fixedly installed on the other end of the inner wall of the recovery box 601, and recovery pipes 605 are fixedly installed at both ends of the recovery box 601. The recovery pipe 605 is fixedly connected to and communicates with the soaking pool 1, wherein the recovery box 601 is fixedly installed at one end of the sedimentation box 501, and a recovery baffle 602 is fixedly installed at one end where the recovery box 601 connects to the sedimentation box 501. The recovery baffle 602 can play a certain blocking role to prevent impurities that have not been completely precipitated and filtered in the sedimentation box 501 from entering the recovery box 601.A heater 604 is fixedly installed at the other end of the inner wall of the recycling box 601. The heater 604 is electrically connected to the power supply and the control device. The heater 604 can adopt electric heating and other methods to heat the liquid in the box to create suitable temperature conditions for the recovery of flake caustic soda and evaporate the water in the waste liquid. Recovery pipes 605 are fixedly installed at both ends of the recycling box 601. The recovery pipes 605 are fixedly connected and communicated with the soaking tank 1, so that the flake caustic soda solution that can be recycled after treatment can be returned to the soaking tank 1 for recycling. The recovery pipe 605 is made of alkali-corrosion-resistant pipe material such as plastic or a metal pipe lined with anti-corrosion material. The diameter of the pipe is designed according to the requirements of wastewater flow and reflux flow to ensure that the liquid can flow stably and smoothly between the recycling box 601 and the soaking tank 1. The caustic soda solution is circulated on the ground to realize the recycling of the caustic soda solution. The recycling device 6 is fixedly installed with a squeezing device 7 on the side away from the precipitation device 5. The squeezing device 7 includes a squeezing box 701 fixedly installed at one end of the recycling box 601, and a squeezing telescopic rod 702 is fixedly installed at one end of the squeezing box 701. The squeezing telescopic rod 702 is piezoelectrically connected to the power supply and the control device. A plate-frame filter plate 703 is fixedly installed at one end of the squeezing telescopic rod 702. A squeezing cover plate 704 is installed above the squeezing box 701, wherein the squeezing box 701 is fixedly installed at one end of the recycling box 601, and its internal space is sufficient to accommodate the frame filter press equipment, and the box wall has a certain strength to withstand the pressure generated during the squeezing process. A squeezing cover plate 704 is installed above the squeezing box 701, and the squeezing cover plate 704 is convenient for recycling caustic soda The sealing device 2 is opened when the operation is in progress and closed during the squeezing process to ensure that the squeezing environment is relatively closed and the squeezing effect is improved. An exhaust device 8 is fixedly installed above the sealing device 2, a purification device 9 is fixedly installed above the exhaust device 8, and several washing towers 10 are fixedly installed above the purification device 9. A transmission device 11 is installed in both the placement device 3 and the sedimentation device 5. The transmission device 11 includes a first transmission rod 1101 movably installed in the sedimentation box 501, a water wheel 1102 is fixedly installed on the surface of the first transmission rod 1101, a first bevel gear 1103 is fixedly installed on the surface of the first transmission rod 1101, a second bevel gear 1104 is meshed with one side of the first bevel gear 1103, a second transmission rod 1105 is fixedly installed on one end of the second bevel gear 1104, and the other end of the second transmission rod 1105 is fixedly installed. The third bevel gear 1106 is fixedly installed on the end, and the fourth bevel gear 1107 is meshed with the surface of the third bevel gear 1106. An active rod 1108 is fixedly installed in the fourth bevel gear 1107, and a transmission fan blade 1109 is fixedly installed below the active rod 1108. A fifth bevel gear 1110 is meshed with the surface of the fourth bevel gear 1107. A third transmission rod 1111 is fixedly installed on one end of the fifth bevel gear 1110, and a connecting plate 1112 is fixedly installed on the surface of the third transmission rod 1111. The other end of the connecting plate 1112 is movably connected to the active rod 1108. A transmission gear 1113 is fixedly installed on the other end of the third transmission rod 1111. A driven gear 1114 is meshed with the surface of the transmission gear 1113, and a driven rod 1115 is movably installed in the driven gear 1114.The driven rod 1115 is fixedly connected to both sides of the placement groove below the placement plate 301. A roller 1116 is fixedly installed on one side of the driven gear 1114. A first gear 1118 is fixedly installed above the active rod 1108. The first gear 1118 is installed above the sealing cover plate 202. A second gear 1119 is meshed with one side of the first gear 1118. A driven shaft 1120 is fixedly installed above the second gear 1119. A first fan blade gear 1121 is fixedly installed above the driven shaft 1120. A second fan blade gear 1117 is meshed with one side of the first fan blade gear 1121.

[0037] The specific implementation process is as follows:

[0038] First, inject an appropriate amount of caustic soda solution into the soaking tank 1, place the aluminum extrusion mold to be cleaned on the placement plate 301 of the placement device 3, and use the control device to control the sealing telescopic rod 201 of the sealing device 2 to drive the sealing cover 202 to close, so that the soaking tank 1 is in a sealed state, and the mold is fully soaked in the solution for a certain period of time, so that the caustic soda reacts with the dirt and impurities on the mold. After the soaking is completed, open the sedimentation port 502 valve between the soaking tank 1 and the sedimentation device 5, so that the wastewater containing impurities and residual caustic soda flows into the sedimentation box 501 of the sedimentation device 5, and the wastewater enters After the sedimentation box 501, the water flows through the sedimentation box 507 to converge and is discharged through the discharge port 508, so that the discharged water flows into the water wheel 1102 on the surface of the first transmission rod 1101, so that the water wheel 1102 drives the first transmission rod 1101 to rotate, and the first bevel gear 1103 on the first transmission rod 1101 drives the second bevel gear 1104 to rotate, thereby rotating the second transmission rod 1105, and the third bevel gear 1106 on the second transmission rod 1105 drives the fourth bevel gear 1107 to rotate, and the active rod 1108 in the fourth bevel gear 1107 drives the transmission blades below. On the other hand, the fourth bevel gear 1107 drives the third transmission rod 1111 to rotate by meshing with the fifth bevel gear 1110, and the transmission gear 1113 on the third transmission rod 1111 meshes with the driven gear 1114, so that the transmission gear 1113 drives the driven gear 1114 to rotate, and the rotation of the driven gear 1114 drives the roller 1116 on one side to rotate, so that the roller 1116 drives the mold in the placement plate 301 to rotate, so that the mold continuously changes position during the soaking process. The first gear 1118 above the active rod 1108 meshes with the second gear 1119, driving the driven shaft 1120 to rotate. The first blade gear 1121 on the driven shaft 1120 meshes with the second blade gear 1117, thereby driving the exhaust fan 802 to rotate, realizing the linkage between the exhaust process and other components, making full use of the water flow energy and reducing additional energy consumption. The precipitant is slowly released from the additive box 506 into the wastewater, prompting the impurities in the wastewater to condense and precipitate. Under the action of the precipitation inclined plate 503, the precipitated impurities slide to the bottom of the tank. At the same time, the wastewater is sequentially filtered through different sedimentation filter plates 505, sand filtration, activated carbon filtration, and ultrafiltration membrane filtration for multi-stage filtration, removing suspended particles, organic matter, and other tiny impurities therein, improving the clarity and purity of the wastewater. The wastewater after sedimentation filtration enters the recovery box 601 of the recovery device 6 through the recovery baffle 602. The treated caustic soda solution is returned to the soaking tank 1 for recycling through the recovery pipe 605, reducing the waste of caustic soda.

[0039] When the caustic soda is used up and needs to be recycled, the waste water after precipitation and filtration enters the recycling box 601 of the recycling device 6 through the recycling baffle 602. In the recycling box 601, the heater 604 heats the waste water, and the water in the alkali solution is gradually evaporated by heating, thereby reducing the water content in the alkali solution and increasing the concentration of the alkali. The water vapor generated by evaporation can be discharged through the exhaust device 8 or discharged to the external condensing device for reuse in subsequent processes, thereby saving water resources. When the precipitated caustic soda containing a small amount of water reaches a certain concentration, the pressing and stretching are started. The retractable rod 702 and the pressing telescopic rod 702 push the plate and frame filter plate 703 to apply pressure to the recovery box 601, wherein the pressing telescopic rod 702 and the plate and frame filter plate 703 constitute a frame filter press equipment, which squeezes and separates the caustic soda and other residual solid impurities contained in the wastewater by applying mechanical pressure, so that the caustic soda is separated in a relatively concentrated form, and at the same time further removes moisture from the wastewater. The squeezed filtrate is heated and evaporated by the heater 604, so that the filter cake containing caustic soda obtained by squeezing remains, further reducing the waste of caustic soda and improving the utilization rate of caustic soda.

[0040] Example 2:

[0041] See also Figure 1-7The present invention provides a technical solution: an alkali recovery and waste gas and wastewater environmental protection treatment device for aluminum extrusion boiler molds, comprising a soaking tank 1, a sealing device 2 movably installed above the soaking tank 1, a placing device 3 movably installed below the sealing device 2, a sewage outlet 4 fixedly installed on one side below the soaking tank 1, a sedimentation device 5 fixedly installed on one side of the soaking tank 1, a recovery device 6 fixedly installed on the side of the sedimentation device 5 away from the soaking tank 1, a pressing device 7 fixedly installed on the side of the recovery device 6 away from the sedimentation device 5, an exhaust device 8 fixedly installed above the sealing device 2, the exhaust device 8 includes an exhaust plate 801 fixedly installed above the sedimentation box 501 and the recovery box 601, a plurality of exhaust fans 802 are evenly installed above the exhaust plate 801, and the exhaust fans 802 are electrically connected to the power supply and the control device. The exhaust plate 801 is fixedly installed above the sedimentation box 501 and the recovery box 601. Its function is to collect the waste gas generated from the sedimentation and recovery process. The exhaust plate 801 has good sealing and a certain strength, and can withstand the weight of the exhaust fan 802 and other components above and the pressure generated by the flow of waste gas. The exhaust fan 802 is evenly arranged above the exhaust plate 801, and generates negative pressure by rotation to extract the waste gas generated in the sedimentation device 5 and the recovery device 6, and transport it to the purification device 9 above for treatment. The air volume, speed and other parameters of the exhaust fan 802 can be selected and adjusted by the control device according to the actual waste gas generation and treatment requirements to ensure that the waste gas can be stably and efficiently collected and transported. The purification device is fixedly installed above the exhaust device 8 The purification device 9 includes a purification box 901 fixedly mounted above the exhaust plate 801, and a photocatalyst deodorizing device 902 is fixedly mounted at both ends of the inner wall of the purification box 901. A photocatalyst coating reaction bed and an ultraviolet light source are installed inside the photocatalyst deodorizing device 902. The ultraviolet light source is electrically connected to the power supply and the control device. A plurality of purification filter plates 903 are evenly installed above the inner wall of the purification box 901, wherein the purification box 901 is fixedly mounted above the exhaust plate 801, and its internal space provides a place for the purification treatment of the exhaust gas. The box wall is made of a sealed and corrosion-resistant material to prevent exhaust gas leakage and avoid being corroded by exhaust gas. A photocatalyst coating reaction bed and an ultraviolet light source are installed inside the photocatalyst deodorizing device 902. The photocatalyst uses a highly catalytically active material such as titanium dioxide. When the exhaust gas passes through the purification box 901 and enters the photocatalyst deodorization device 902, the photocatalyst is activated under the irradiation of ultraviolet rays, and produces free radicals with strong oxidizing properties, such as hydroxyl free radicals, etc. These free radicals can react with the molecules of odor components in the exhaust gas, including VOCs, alkaline gases and other odorous substances, to decompose complex organic macromolecules into small molecular substances, while achieving the effect of disinfection and sterilization, and effectively removing harmful components and odors in the exhaust gas. The purification filter plate 903 uses filter plates of different materials and filtering principles, such as activated carbon filter plates, fiber filter plates, etc., to further filter the exhaust gas treated by the photocatalyst deodorization device 902, and remove any residual tiny particles, impurities that are not completely decomposed, and water vapor, etc.In order to further improve the purification quality of exhaust gas and ensure that the exhausted exhaust gas meets environmental emission standards, a plurality of washing towers 10 are fixedly installed above the purification device 9. The plurality of washing towers 10 are fixedly installed above the purification device 9. A multi-layer spraying device and corresponding filler and other structures are installed in each washing tower 10. By spraying a specific washing liquid such as an acidic solution, clean water, etc. into the washing tower 10, the exhaust gas treated by the purification device 9 is cleaned again to further remove the residual trace impurities, acidic or alkaline gases, etc., to ensure that the exhaust gas finally discharged into the atmosphere fully meets environmental protection requirements and achieves high-quality deodorization and purification effects. A corresponding solution collection device is adapted to be installed under each washing tower 10 to collect the solution sprayed in the washing tower 10;

[0042] The specific implementation process is as follows:

[0043] The waste gas generated during the wastewater treatment process in the soaking tank 1 is collected by the exhaust fan 802 of the exhaust device 8 and transported to the purification device 9. The waste gas first enters the photocatalyst deodorization device 902. Under ultraviolet irradiation, the photocatalyst is activated to produce free radicals, which crack and disinfect the odor components in the waste gas. Then, after further filtration through the purification filter plate 903, it enters the washing tower 10. In the washing tower 10, the waste gas is cleaned again by spraying washing liquid through the spray device to remove residual impurities and trace harmful gases, and finally the waste gas is discharged into the atmosphere after meeting the environmental emission standards.

[0044] Working principle: First, inject an appropriate amount of caustic soda solution into the soaking tank 1, place the mold that needs to be processed on the placement plate 301 of the placement device 3, and use the arc plate 303 to fix the position of the mold. Then, the sealing telescopic rod 201 of the sealing device 2 is contracted to drive the sealing cover plate 202 to rise, and place the placement device 3 with the mold placed in the soaking tank 1, and then lower the sealing cover plate 202 to seal the soaking tank 1. During the descent, the driven gear 1114 under the placement device 3 is in contact and meshed with the transmission gear 1113, and a telescopic device is fixed on both sides of the inner wall of the placement plate 301, so as to facilitate the installation of the placement plate 301, and the driven gear 1113 can be adjusted up and down according to different pressures, so that the mold is soaked in the caustic soda solution for a certain period of time, so that the dirt and impurities on the mold are dissolved or fallen off under the action of the caustic soda. In this process, wastewater containing caustic soda components will be generated. The waste gas containing components such as alkaline mist is volatilized, and the generated waste gas and wastewater are discharged into the sedimentation box 501 through the sedimentation port 502. After the soaking is completed, the wastewater in the soaking pool 1 flows into the sedimentation box 501 of the sedimentation device 5 through the sedimentation port 502. In the sedimentation box 501, the water flow is converged through the sedimentation box 507 and discharged through the discharge port 508, so that the discharged water flow hits the water wheel 1102 on the surface of the first transmission rod 1101, so that the water wheel 1102 drives the first transmission rod 1101 to rotate, and the first bevel gear 1103 on the first transmission rod 1101 drives the second bevel gear 1104 to rotate, and then the second transmission rod 1105 rotates, and the third bevel gear 1106 on the second transmission rod 1105 drives the fourth bevel gear 1107 to rotate. The active rod 1108 in the fourth bevel gear 1107 drives the transmission fan blade 1109 below to rotate, thereby promoting the mixing of the water flow in the sedimentation box 501 and accelerating the sedimentation process;On the other hand, the fourth bevel gear 1107 drives the third transmission rod 1111 to rotate by meshing with the fifth bevel gear 1110, and the transmission gear 1113 on the third transmission rod 1111 meshes with the driven gear 1114, so that the transmission gear 1113 drives the driven gear 1114 to rotate, and the rotation of the driven gear 1114 drives the roller 1116 on one side to rotate, so that the roller 1116 drives the mold in the placement plate 301 to rotate, so that the mold constantly changes its position during the soaking process, improves the soaking effect, and makes it easier to fall off the dirt. The first gear 1118 above the active rod 1108 meshes with the second gear 1119, driving The driven shaft 1120 rotates, and the first blade gear 1121 on the driven shaft 1120 meshes with the second blade gear 1117, thereby driving the exhaust fan 802 to rotate, realizing the linkage between the exhaust process and other components, making full use of the water flow energy, and reducing additional energy consumption. First, relying on gravity sedimentation, the larger particles of impurities in the wastewater naturally settle to the bottom of the box. At the same time, the additive box 506 adds a precipitant to the wastewater according to the setting, further promoting the aggregation and precipitation of fine particles. Then, the wastewater passes through the sedimentation filter plate 505 in sequence for sand filtration, activated carbon filtration, and ultrafiltration membrane filtration, etc. After removing various impurities, it enters the recovery box 60 of the recovery device 6. 1. The treated caustic soda solution returns to the soaking tank 1 for recycling through the recovery pipe 605 and continues to participate in the mold making process, reducing the waste of caustic soda. When the caustic soda needs to be recovered after the soaking is completed, the waste water after precipitation and filtration enters the recovery box 601 of the recovery device 6 through the recovery baffle 602. In the recovery box 601, the heater 604 heats the waste water, and the water in the alkali solution is gradually evaporated by heating, thereby reducing the water content in the alkali solution and increasing the concentration of alkali. The water vapor generated by evaporation can be discharged through the exhaust device 8 or discharged to the external condensing device for reuse in subsequent processes, thereby saving water resources. When the caustic soda in a small amount of water reaches a certain concentration, the squeezing telescopic rod 702 is activated, pushing the plate-and-frame filter plate 703 to apply pressure to the inside of the recovery box 601. The squeezing telescopic rod 702 and the plate-and-frame filter plate 703 form a frame filter press. By applying mechanical pressure, the caustic soda and other residual solid impurities in the wastewater are squeezed and separated, so that the caustic soda is separated in a relatively concentrated form, while further removing moisture from the wastewater. The squeezed filtrate is heated and evaporated by the heater 604, leaving the caustic soda filter cake. This further reduces the waste of caustic soda, improves the utilization rate of caustic soda, and realizes the recycling and reuse of caustic soda.

[0045] The waste gas generated during the soaking, wastewater treatment and other processes is evaporated from the soaking tank 1 and collected by the exhaust plate 801 of the exhaust device 8. Under the action of the exhaust fan 802, the waste gas is transported to the purification box 901 of the purification device 9. First, the waste gas passes through the photocatalyst deodorization device 902. Under ultraviolet irradiation, the free radicals generated by the photocatalyst decompose and disinfect the odor components in the waste gas, and then passes through the purification filter plate 903 for further filtration and purification. The waste gas treated by the purification device 9 then enters the washing tower 10, and is cleaned by the multi-layer spray device in the washing tower 10 to remove residual impurities and water vapor, and finally discharged into the atmosphere after meeting the standards.

[0046] The above is only an embodiment of the present invention, and common knowledge such as the specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. An aluminum extrusion boiler die alkali recovery and waste gas and wastewater environmental treatment device, characterized by: The invention comprises a soaking tank (1), wherein a sealing device (2) is movably provided above the soaking tank (1), a placing device (3) is movably provided below the sealing device (2), a settling device (5) is fixedly provided on one side of the soaking tank (1), a recovery device (6) is fixedly provided on the side of the settling device (5) away from the soaking tank (1), a pressing device (7) is fixedly provided on the side of the recovery device (6) away from the settling device (5), an exhaust device (8) is fixedly provided above the sealing device (2), a purification device (9) is fixedly provided above the exhaust device (8), and a plurality of washing towers (10) are fixedly provided above the purification device (9), and a transmission device (11) is provided in both the placing device (3) and the settling device (5); The sealing device (2) comprises a sealing telescopic rod (201) fixedly mounted at both ends of the soaking tank (1); a sealing cover plate (202) is fixedly mounted above the sealing telescopic rod (201); a notch is provided on the surface of the sealing cover plate (202); and a sealing groove (203) is provided below the sealing cover plate (202); The placing device (3) comprises a placing rod (302) embedded in the sealing groove (203), the placing rod (302) is movably adapted to the sealing groove (203), a placing plate (301) is fixedly provided below the placing rod (302), arc-shaped plates (303) are fixedly provided at both ends of the inner wall of the placing plate (301), and a placing groove is provided below the placing plate (301); The sedimentation device (5) comprises a sedimentation box (501) fixedly mounted on one side of the soaking tank (1); a sedimentation port (502) is provided at one end of the sedimentation box (501); a control valve is provided in the sedimentation port (502); the sedimentation port (502) is communicated with the soaking tank (1); a sedimentation inclined plate (503) is fixedly provided at one end of the inner wall of the sedimentation box (501); a plurality of sedimentation slots (504) are fixedly provided on the inner wall of the sedimentation box (501); sedimentation filter plates (505) are embedded in the sedimentation slots (504); a sedimentation box (507) is fixedly provided below the sedimentation inclined plate (503); and a discharge port (508) is provided below the sedimentation box (507); The recovery device (6) comprises a recovery box (601) fixedly mounted on one end of the sedimentation box (501); a recovery baffle (602) is fixedly provided at one end of the recovery box (601) where it connects to the sedimentation box (501); a recovery filter plate (603) is fixedly provided on one side of the recovery baffle (602); a heater (604) is fixedly provided on the other end of the inner wall of the recovery box (601); recovery pipes (605) are fixedly provided at both ends of the recovery box (601); and the recovery pipes (605) are fixedly connected to and communicate with the soaking tank (1); The transmission device (11) comprises a first transmission rod (1101) movably mounted in the sedimentation box (501), a water wheel (1102) being fixedly provided on the surface of the first transmission rod (1101), a first bevel gear (1103) being fixedly provided on the surface of the first transmission rod (1101), a second bevel gear (1104) being meshed with one side of the first bevel gear (1103), a second transmission rod (1105) being fixedly provided at one end of the second bevel gear (1104), a third bevel gear (1106) being fixedly provided at the other end of the second transmission rod (1105), a fourth bevel gear (1107) being meshed with the surface of the third bevel gear (1106), an active rod (1108) being fixedly provided in the interior of the fourth bevel gear (1107), and a transmission blade (1106) being fixedly provided below the active rod (1108). 109), a fifth bevel gear (1110) is meshed on the surface of the fourth bevel gear (1107), a third transmission rod (1111) is fixedly provided on one end of the fifth bevel gear (1110), a connecting plate (1112) is fixedly provided on the surface of the third transmission rod (1111), the other end of the connecting plate (1112) is movably connected to the active rod (1108), a transmission gear (1113) is fixedly provided on the other end of the third transmission rod (1111), a driven gear (1114) is meshed on the surface of the transmission gear (1113), a driven rod (1115) is movably provided in the driven gear (1114), the driven rod (1115) is fixedly connected to both sides of the placement slot below the placement plate (301), and a roller (1116) is fixedly provided on one side of the driven gear (1114); A first gear (1118) is fixedly provided above the active rod (1108), the first gear (1118) is installed above the sealing cover plate (202), a second gear (1119) is meshed with one side of the first gear (1118), a driven shaft (1120) is fixedly provided above the second gear (1119), a first blade gear (1121) is fixedly provided above the driven shaft (1120), and a second blade gear (1117) is meshed with one side of the first blade gear (1121).

2. The device for alkali recovery and waste gas and wastewater environmental treatment of aluminum extrusion mold sheets according to claim 1 is characterized by: A sewage outlet (4) is fixedly provided on one side below the soaking tank (1).

3. The device for recycling alkali from aluminum extrusion die sheets and treating waste gas and wastewater according to claim 1 is characterized by: The plurality of sedimentation filter plates (505) in the sedimentation box (501) are sand filtration, activated carbon filtration and ultrafiltration membrane filtration, respectively, thereby filtering the wastewater in sequence to improve the clarity and purity of the wastewater.

4. The device for alkali recovery and waste gas and wastewater environmental treatment of aluminum extrusion mold sheets according to claim 3 is characterized by: Additive boxes (506) are fixedly provided on both sides of the inner wall of the precipitation box (501), and the additive boxes (506) are filled with precipitants.

5. The device for recycling alkali from aluminum extrusion die sheets and treating waste gas and wastewater according to claim 1 is characterized by: The squeezing device (7) comprises a squeezing box (701) fixedly mounted on one end of the recovery box (601), a squeezing telescopic rod (702) fixedly disposed on one end of the squeezing box (701), a plate-and-frame filter plate (703) fixedly disposed on one end of the squeezing telescopic rod (702), and a squeezing cover plate (704) disposed above the squeezing box (701).

6. The device for recycling alkali from aluminum extrusion die sheets and treating waste gas and wastewater according to claim 1 is characterized by: The exhaust device (8) comprises an exhaust plate (801) fixedly mounted above the sealing device (2); exhaust fans (802) are evenly arranged above the exhaust plate (801); and the exhaust fans (802) are fixedly connected to the second blade gear (1117).

7. The device for recycling alkali from aluminum extrusion die sheets and treating waste gas and wastewater according to claim 6 is characterized by: The purification device (9) comprises a purification box (901) fixedly mounted above the exhaust plate (801), a photocatalyst deodorizing device (902) fixedly mounted at both ends of the inner wall of the purification box (901), and a plurality of purification filter plates (903) evenly arranged above the inner wall of the purification box (901).

8. The device for alkali recovery and waste gas and wastewater environmental treatment of aluminum extrusion mold sheets according to claim 7 is characterized by: The photocatalyst deodorizing device (902) is provided with a photocatalyst coating reaction bed and an ultraviolet light source.

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