Plasma sewage treatment device and treatment method thereof

Abstract

The invention discloses a plasma sewage treatment device and a treatment method thereof, and relates to the technical field of sewage treatment devices.The plasma sewage treatment device comprises a barrel, a reaction box and a bottom cover, the reaction box is installed at the top of the barrel, the bottom cover is installed at the bottom of the barrel, and a filtering and purifying mechanism, a power mechanism and a plasma releasing mechanism are arranged in the barrel; a mixing chamber and a control chamber are further arranged in the reaction box, the barrel communicates with the mixing chamber, a filter screen is installed at the connecting position of the barrel and the mixing chamber, a discharge pipe is installed at the top end of the side face of the mixing chamber, and a plasma generation device is arranged in the control chamber. When mixed bubbles of the plasma and the gas are in contact with the filter disc, the bubbles can be scattered, so that the plasma and the sewage can be fully contacted and mixed conveniently, organic pollutants in the sewage can be decomposed, and the filter disc can also play a role in blocking and filtering impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more specifically, to a plasma sewage treatment device and a treatment method thereof. Background Art

[0002] With the rapid development of urbanization and industrialization, the amount of sewage has increased dramatically. Therefore, in order to treat this kind of sewage, more sewage treatment devices are used. Sewage treatment is to treat sewage using physical, chemical and biological methods to purify sewage, reduce pollution, and even achieve sewage recovery and reuse, so as to make full use of water resources. The use of plasma to treat sewage is an advanced oxidation technology. Its basic principle is to use the high-energy electrons, free radicals and other active particles generated by plasma to decompose organic pollutants in water and convert them into harmless or low-harm substances.

[0003] Reference is made to a Chinese patent document with publication number CN117088559A, which discloses a plasma sewage treatment device, whose structure includes a body, a plasma box, a controller, a sewage treatment box, a purification device, and a water outlet pipe. When the present invention is used, three interconnecting holes provided at the lower end of the diversion conduit are connected to the corresponding treatment components, so that the treatment components and the diversion conduit are then in an interconnected state, and the docking joint on the left side of the diversion conduit is connected to the sewage treatment box, and then the plasma of the plasma box is transported to the sewage treatment box through the water inlet pipe. In this scheme, the sewage is respectively introduced into the three treatment components for purification through the diversion conduit. The volume itself is large and it takes up more space. In addition, the three independently arranged purification devices mean that the treatment schemes need to be carried out in three parts simultaneously, and the added reagents also need to be arranged in multiple parts, which increases the cost.

[0004] Based on the above problems, we provide a plasma wastewater treatment device and a treatment method thereof. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a plasma wastewater treatment device and a treatment method thereof.

[0006] The present invention provides a plasma wastewater treatment device and a treatment method thereof using the following technical solutions:

[0007] A plasma wastewater treatment device and a treatment method thereof, comprising:

[0008] A cylinder, a reaction box and a bottom cover, wherein the reaction box is installed on the top of the cylinder, and the bottom cover is installed on the bottom of the cylinder. A filtering and purification mechanism, a power mechanism and a plasma release mechanism are arranged in the cylinder;

[0009] The filtering and purification mechanism includes a partition plate fixedly installed in the middle of the cylinder, and a plurality of processing tanks are installed on the partition plate. The processing tanks are provided with upper and lower openings, and a plurality of filter discs are movably installed in the processing tanks. The middle of the plurality of filter discs is provided with a same vibration shaft, which is convenient for pushing the filter discs to vibrate, and is used for filtering and purifying sewage.

[0010] The power mechanism includes a power shaft installed under the processing tank, a cam is mounted on the power shaft, and a supporting wheel matching the cam is installed at the bottom of the vibration shaft to facilitate the vibration shaft to shake up and down;

[0011] The plasma release mechanism includes a vertical tube installed at the center of the partition plate, a balloon tube is installed on the bottom of the vertical tube, a plurality of inverted tubes are installed through the balloon tube, and an aeration nozzle is connected to the head of the inverted tube to facilitate uniform release of plasma gas;

[0012] Among them, a mixing chamber and a control chamber are also provided in the reaction box, the cylinder and the mixing chamber are connected and a filter is installed at the connecting position, a sewage input pipe is installed at the bottom end of the cylinder side, a discharge pipe is installed at the top end of the mixing chamber side, a water pump is also installed on the discharge pipe, and a plasma generating device is provided in the control chamber.

[0013] Preferably, the filtering and purification mechanism also includes a plurality of brackets, which correspond one-to-one to the processing tanks and are installed on the top of the partition plate. A shaft sleeve is also installed at the center of the bracket, and the top end of the vibration shaft is slidably inserted in the shaft sleeve. A vibration spring is also installed between the top end of the vibration shaft and the top wall of the shaft sleeve.

[0014] Preferably, the power mechanism also includes three sets of bevel gear components, which are installed at relative positions on the ends of the two power shafts. The end of one of the four power shafts extends outside the cylinder and is equipped with a power motor. The power motor is installed on the outer surface of the cylinder through a motor frame. A positioning bracket plate is also installed on the power shaft, and the positioning bracket plate is installed on the inner wall of the cylinder.

[0015] Preferably, a cover plate is also installed on the top of the mixing chamber, and a stirring motor is installed at the top center of the cover plate. The output shaft of the stirring motor extends into the mixing chamber and is connected to a stirring wheel. A channel groove is also opened on the blades of the stirring wheel, and a hybrid paddle is horizontally installed in the channel groove. The hybrid paddle consists of a horizontal axis and two blades, and the two blades are symmetrically arranged at both ends of the horizontal axis about the center of the horizontal axis.

[0016] Preferably, the plasma generating device includes a sealed ceramic box, a power supply and a gas storage tank. A positive electrode plate and two negative electrode plates are arranged in the sealed ceramic box. The two negative electrode plates are arranged on both sides of the positive electrode plate. The power supply is electrically connected to the positive electrode plate and the negative electrode plate through a transmission line.

[0017] Preferably, the top of the gas storage tank is connected to an air supply pipe, which is connected to the top center of the sealed ceramic box, and an air valve is also installed on the air supply pipe. The bottom of the gas storage tank is connected to an inflation pipe, which extends to the outside of the control chamber. An air delivery pipe is also installed at the bottom center of the sealed ceramic box, which extends into the cylinder and is connected to the vertical pipe.

[0018] Preferably, the bottom cover includes a funnel mouth and a hollow disk installed in the funnel mouth, two sealing rings are installed at the center of the hollow disk, and a plurality of mutually cooperating triangular clamping plates are rotatably installed between the upper and lower sealing rings. The two cooperating sides of the triangular clamping plates are arranged in an arc shape, and hinge points are arranged on the ends of the two arc-shaped sides. The hinge point close to the center of the sealing ring is rotatably installed on the sealing ring through a pin shaft.

[0019] Preferably, a bevel gear ring is rotatably mounted in the hollow disk, and a plurality of support bars are connected to the inner wall of the bevel gear ring. The support bars correspond to the triangular clamping plates one by one and extend to the bottom of the adjacent hinge point, which is rotatably mounted on the support bars via a pin shaft.

[0020] Preferably, a worm is rotatably installed in the hollow disk, the worm is meshed with the helical gear ring, and one end of the worm extends to the outside of the bottom cover and is connected to a trigger motor, which is installed on the outside of the bottom cover through a motor frame.

[0021] A treatment method for a plasma wastewater treatment device, which is applicable to the above-mentioned plasma wastewater treatment device, comprises the following steps:

[0022] S1: Inject sewage into the cylinder through the sewage inlet pipe, and start the plasma generator to generate high-energy electrons, free radicals and other active particles through ionization and release them to the bottom of the cylinder through the vertical pipe to decompose the organic pollutants in the sewage;

[0023] S2: After starting the power mechanism, the cam in the power mechanism can cooperate with the supporting wheel at the bottom of the vibration shaft to push the vibration shaft to shake up and down. The vibration shaft can push the filter to shake continuously in the treatment tank. When it comes into contact with the plasma gas mixture, the plasma bubbles in the sewage can be dispersed, which is convenient for full contact and mixing with the sewage. The filter can also block and filter impurities.

[0024] S3: After being blocked and filtered by the filter plate, the impurities in the sewage will settle in the bottom cover. When cleaning is needed, the worm and the bevel gear ring can be used to drive the bevel gear ring to rotate. When the support bar on the bevel gear ring rotates, the triangular card plate can be driven to rotate, so that gaps appear between the multiple triangular card plates and gradually expand. At this time, the impurities in the bottom cover will fall under the action of gravity, which is convenient for discharge;

[0025] S4: After starting the stirring motor, it can push the stirring wheel to rotate. When the stirring wheel rotates, it can push the sewage to float up. In addition, a mixing paddle is installed in the blades of the stirring wheel. When the stirring wheel rotates, the mixing paddle will also rotate continuously, which can fully mix the sewage and plasma, further enhancing the decomposition effect. The purified clean water can be discharged outward through the discharge pipe after continuously floating up.

[0026] In summary, the present invention includes the following beneficial technical effects:

[0027] 1. The vibrating shaft provided in the present application can push the filter disc to shake continuously in the treatment tank. When the mixed bubbles of plasma and gas contact the filter disc, the bubbles can be broken up, which facilitates the full contact and mixing of plasma and sewage, decomposes the organic pollutants in the sewage, and the filter disc can also block and filter impurities.

[0028] 2. The present application provides a sealed ceramic box, a power supply and a gas storage tank in the control chamber. The power supply can supply power to the positive electrode plate and the negative electrode plate, thereby ionizing the air to generate plasma, and the gas storage tank can control the introduction of air or mixed gases such as hydrogen to improve the efficiency of plasma generation, thereby enhancing the purification effect of sewage.

[0029] 3. The present application has a bottom cover installed at the bottom of the cylinder, and a plurality of triangular clamping plates that cooperate with each other are arranged in the bottom cover. When the plurality of triangular clamping plates fit together, the seal can be maintained. When cleaning is required, the triangular clamping plates are pushed to rotate, and a gap will appear and gradually expand, making it convenient to discharge impurities downward.

[0030] 4. The present application also installs a stirring wheel in the mixing chamber, and a mixing paddle is installed on the stirring wheel through a groove. During the rotation of the stirring wheel, the mixing paddle will also rotate continuously, thereby stirring the sewage and plasma to fully mix, further enhancing the decomposition effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the internal structure of the cylinder of the present invention;

[0034] Figure 4 It is an exploded schematic diagram of the internal structure of the treatment tank of the present invention;

[0035] Figure 5 is a schematic diagram of the internal structure of the mixing chamber of the present invention;

[0036] Figure 6is a cross-sectional schematic diagram of a plasma generating device of the present invention;

[0037] Figure 7 is a cross-sectional schematic diagram of the bottom cover of the present invention;

[0038] Figure 8 It is a cross-sectional schematic diagram of the hollow disk of the present invention;

[0039] Fig. 9 It is a schematic diagram of the internal structure of the hollow disk of the present invention.

[0040] Description of reference numerals: 1. Cylinder; 11. Filtration and purification mechanism; 1101. Partition plate; 1102. Processing tank; 1103. Filter; 1104. Vibration shaft; 1105. Bracket; 1106. Bushing; 1107. Vibration spring; 1108. Support wheel; 12. Power mechanism; 1201. Power shaft; 1202. Cam; 1203. Bevel gear; 1204. Positioning bracket plate; 1205. Power motor; 13. Plasma release mechanism; 1301. Vertical pipe; 1302. Balloon tube; 1303. Inverted bend pipe; 14. Sewage inlet pipe; 2. Reaction box; 21. Mixing chamber; 2101. Filter screen; 21 02. Cover plate; 2103. Stirring motor; 2104. Stirring wheel; 2105. Channel groove; 2106. Hybrid paddle; 22. Control chamber; 2201. Sealed ceramic box; 2202. Power supply; 2203. Gas storage tank; 2204. Air supply pipe; 2205. Air valve; 2206. Inflating pipe; 2208. Air supply pipe; 2209. Positive electrode plate; 2210. Negative electrode plate; 23. Discharge pipe; 2301. Water pump; 3. Bottom cover; 301. Funnel mouth; 302. Hollow disk; 303. Sealing ring; 304. Triangular clamp plate; 305. Bevel gear ring; 306. Support bar; 307. Worm; 308. Trigger motor. DETAILED DESCRIPTION

[0041] The following is combined with Figures 1 to 9 The present invention is described in further detail.

[0042] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0043] Embodiment 1

[0044] Reference Figures 1 to 4The present invention discloses a plasma wastewater treatment device, comprising a cylinder 1, a reaction box 2 and a bottom cover 3, wherein the reaction box 2 is installed at the top of the cylinder 1, the bottom cover 3 is installed at the bottom of the cylinder 1, and a filtering and purifying mechanism 11 is arranged in the cylinder 1, wherein the filtering and purifying mechanism 11 comprises a partition plate 1101 fixedly installed at the middle position of the cylinder 1, and a plurality of processing tanks 1102 are installed on the partition plate 1101, and the processing tank 1102 is provided with upper and lower openings, and a plurality of filter discs 1103 are movably installed in the processing tank 1102, and the plurality of filter discs 1103 are movably installed in the processing tank 1102. The middle part of 03 is equipped with the same vibration shaft 1104, which is convenient for pushing the filter 1103 to vibrate and is used to filter and purify sewage. In addition, the filtering and purification mechanism 11 also includes a plurality of brackets 1105. The brackets 1105 correspond to the treatment tanks 1102 one by one and are installed on the top of the partition plate 1101. A sleeve 1106 is also installed at the center of the bracket 1105. The top end of the vibration shaft 1104 is slidably inserted in the sleeve 1106. A vibration spring 1107 is also installed between the top end of the vibration shaft 1104 and the top wall of the sleeve 1106.

[0045] Reference Figure 2 , 3 4. A power mechanism 12 is also provided in the cylinder 1. The power mechanism 12 includes a power shaft 1201 installed below the treatment tank 1102. A cam 1202 is mounted on the power shaft 1201. A support wheel 1108 matching the cam 1202 is installed at the bottom of the vibration shaft 1104 to facilitate the up and down shaking of the vibration shaft 1104. A mixing chamber 21 and a control chamber 22 are also provided in the reaction box 2. The cylinder 1 is connected to the mixing chamber 21 and a filter screen 2101 is installed at the connecting position. A sewage input pipe 14 is installed at the bottom end of the side of the cylinder 1, and a filter screen 2101 is installed at the top end of the side of the mixing chamber 21. A discharge pipe 23 is provided, on which a water pump 2301 is also installed. A plasma generating device is provided in the control chamber 22. The power mechanism 12 also includes three sets of bevel gears 1203. The bevel gears 1203 are installed at positions opposite to the ends of two power shafts 1201. The end of one of the four power shafts 1201 extends outside the cylinder 1 and is provided with a power motor 1205. The power motor 1205 is installed on the outer surface of the cylinder 1 through a motor frame. A positioning bracket plate 1204 is also installed on the power shaft 1201. The positioning bracket plate 1204 is installed on the inner wall of the cylinder 1.

[0046] Reference Figure 2 , 36. The plasma generating device includes a sealed ceramic box 2201, a power source 2202 and a gas storage tank 2203. A positive electrode plate 2209 and two negative electrode plates 2210 are arranged in the sealed ceramic box 2201. The two negative electrode plates 2210 are arranged on both sides of the positive electrode plate 2209. The power source 2202 is electrically connected to the positive electrode plate 2209 and the negative electrode plate 2210 through a transmission line. The top of the gas storage tank 2203 is connected to an air supply pipe 2204, which is connected to the top center of the sealed ceramic box 2201. The air supply pipe 2204 is also equipped with an air valve 2205. The bottom of the gas storage tank 2203 is connected to There is an inflation tube 2206, which extends to the outside of the control chamber 22. A plasma release mechanism 13 is also arranged in the cylinder 1. The plasma release mechanism 13 includes a vertical tube 1301 installed at the center of the partition plate 1101. A balloon tube 1302 is also installed on the bottom of the vertical tube 1301. A plurality of inverted tubes 1303 are also installed through the balloon tube 1302. An aeration nozzle is also connected to the tube head position of the inverted tube 1303 to facilitate the uniform release of plasma gas. A gas supply pipe 2208 is also installed at the bottom center of the sealed ceramic box 2201. The gas supply pipe 2208 extends into the cylinder 1 and is connected to the vertical tube 1301.

[0047] Specifically, the partition plate 1101 arranged in the cylinder 1 can divide the cylinder 1 into two parts, the sewage input pipe 14 arranged can pass the sewage into the lower half of the cylinder 1. In addition, the plasma release mechanism 13 is also arranged in the lower half of the cylinder 1. When working, the power supply 2202 can supply power to the positive electrode plate 2209 and the negative electrode plate 2210 after being turned on, and generate plasma by ionizing the air. The plasma contains high-energy electrons, free radicals and other active particles. After contacting with organic pollutants in the sewage, it can quickly decompose and evolve the sewage. The gas storage tank 2203 arranged can store Gas, and control the rate of gas introduction, control the rate of plasma generation, to cope with sewage with different pollution levels. In addition, in order to increase the efficiency of plasma generation, gases such as hydrogen can also be mixed into the air to further increase the activity of plasma and enhance the purification effect of sewage. The generated plasma and gas mixture can be introduced into the vertical pipe 1301 through the gas pipe 2208, and the bottom end of the vertical pipe 1301 is connected to a plurality of inverted pipes 1303 through the balloon tube 1302, which can evenly disperse the plasma and release it in multiple places, so that the plasma and sewage can be mixed more evenly faster.

[0048] Furthermore, in order to ensure that the plasma and the sewage are fully mixed and contacted, the cam 1202 in the power mechanism 12 can cooperate with the support wheel 1108 to push the vibration shaft 1104 to shake up and down continuously when rotating. In addition, a matching bracket 1105 is installed on the top of the partition plate 1101, and a sleeve 1106 matching the vibration shaft 1104 is installed at the center of the bracket 1105. The sleeve 1106 can keep the vibration shaft 1104 sliding vertically, and the set vibration spring 1107 can quickly push the vibration shaft 1104 down, pushing the filter 1103 to shake continuously. When the mixed bubbles of plasma and gas contact the filter 1103, they can be quickly broken into tiny bubbles, so as to be quickly and fully mixed with the sewage. In addition, the filter 1103 can also block and filter impurities in the sewage, leaving the impurities in the lower half of the cylinder 1.

[0049] Embodiment 2

[0050] Reference Figure 1 , 2 5. On the basis of the first embodiment, a cover plate 2102 is further installed on the top of the mixing chamber 21, and a stirring motor 2103 is installed at the top center of the cover plate 2102. The output shaft of the stirring motor 2103 extends into the mixing chamber 21 and is connected to a stirring wheel 2104. A channel groove 2105 is also provided on the blade of the stirring wheel 2104. A hybrid paddle 2106 is horizontally installed in the channel groove 2105. The hybrid paddle 2106 consists of a horizontal axis and two blades. The two blades are symmetrically arranged at both ends of the horizontal axis about the center of the horizontal axis. When the stirring motor 2103 is working, it can drive the stirring wheel 2104 to rotate. A channel groove 2105 is provided on the blade of the stirring wheel 2104, and the sewage can pass through the channel groove 2105. A hybrid paddle 2106 is also installed in the channel groove 2105. Blades are symmetrically installed at both ends of the hybrid paddle 2106. When the sewage passes through the channel groove 2105, it will push the hybrid paddle 2106 to rotate continuously, so that the sewage can be stirred and turned continuously, which is convenient for further mixing the sewage and the plasma therein. In addition, a sewage purification agent can be added to the mixing chamber 21 to further improve the sewage purification effect. The purified sewage will roll upward and be discharged outward through the discharge pipe 23.

[0051] Embodiment 3

[0052] Reference Figure 1 , 2, 7, 8, 9, the bottom cover 3 includes a funnel mouth 301 and a hollow disk 302 installed in the funnel mouth 301, two sealing rings 303 are installed at the center of the hollow disk 302, and a plurality of triangular clamping plates 304 that cooperate with each other are rotatably installed between the upper and lower sealing rings 303. The two sides of the triangular clamping plates 304 that cooperate with each other are arranged in an arc shape, and the ends of the two arc-shaped sides are provided with hinge points. The hinge point close to the center of the sealing ring 303 is rotatably installed on the sealing ring 303 through a pin shaft. A bevel gear ring 305 is installed, and a plurality of support bars 306 are connected to the inner wall of the bevel gear ring 305. The support bars 306 correspond to the triangular clamping plates 304 one by one and extend to the bottom of the hinge point close to the support bar 306. The hinge point is rotatably installed on the support bar 306 through a pin shaft. A worm 307 is also rotatably installed in the hollow disk 302. The worm 307 is meshed with the bevel gear ring 305, and one end of the worm 307 extends to the outside of the bottom cover 3 and is connected to a trigger motor 308. The trigger motor 308 is installed on the outside of the bottom cover 3 through a motor frame.

[0053] On the other hand, in order to facilitate the cleaning of impurities accumulated at the bottom of the cylinder 1, the bottom cover 3 is connected to the bottom of the cylinder 1, and the accumulated impurities will fall into the bottom cover 3. When cleaning is needed, the trigger motor 308 can be started, and the trigger motor 308 can drive the worm 307 to rotate. Since the worm 307 is engaged with the bevel gear ring 305, the bevel gear ring 305 and the support bar 306 can be driven to rotate. One end of the triangular clamping plate 304 is rotatably installed on the support bar 306, and the other end is rotatably installed in the sealing ring 303. When rotating, the triangular clamping plate 304 will rotate around the hinge point in the sealing ring 303, so that gaps appear between adjacent triangular clamping plates 304 and gradually expand with continuous rotation. At this time, impurities can fall through the gaps between the triangular clamping plates 304 for easy discharge.

[0054] A treatment method of a plasma wastewater treatment device of the present invention comprises the following steps:

[0055] S1: Sewage is injected into the cylinder 1 through the sewage input pipe 14, and the plasma generating device is started to generate high-energy electrons, free radicals and other active particles by ionization and release them to the bottom of the cylinder 1 through the vertical pipe 1301 to decompose organic pollutants in the sewage;

[0056] S2: After the power mechanism 12 is started, the cam 1202 in the power mechanism 12 can cooperate with the supporting wheel 1108 at the bottom end of the vibration shaft 1104, so as to push the vibration shaft 1104 to shake up and down, and the filter 1103 can be pushed to shake continuously in the treatment tank 1102 through the vibration shaft 1104. When it contacts the plasma gas mixture, the plasma bubbles in the sewage can be dispersed, which is convenient for full contact and mixing with the sewage, and the filter 1103 can also play the effect of blocking and filtering impurities;

[0057] S3: After being blocked and filtered by the filter sheet 1103, the impurities in the sewage will settle in the bottom cover 3. When cleaning is needed, the worm 307 cooperates with the bevel gear ring 305 to push the bevel gear ring 305 to rotate. When the support bar 306 on the bevel gear ring 305 rotates, the triangular clamping plate 304 can be pushed to rotate, so that gaps appear between the multiple triangular clamping plates 304 and gradually expand. At this time, the impurities in the bottom cover 3 will fall under the action of gravity, which is convenient for discharge;

[0058] S4: After starting the stirring motor 2103, it can push the stirring wheel 2104 to rotate. When the stirring wheel 2104 rotates, it can push the sewage to float up. In addition, a mixing paddle 2106 is installed in the blades of the stirring wheel 2104. When the stirring wheel 2104 rotates, the mixing paddle 2106 will also rotate continuously, which can fully mix the sewage and plasma, further enhancing the decomposition effect. The purified clean water can be discharged outward through the discharge pipe 23 after continuously floating up.

[0059] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plasma wastewater treatment device, characterized in that: The invention comprises a cylinder (1), a reaction box (2) and a bottom cover (3), wherein the reaction box (2) is installed at the top of the cylinder (1), the bottom cover (3) is installed at the bottom of the cylinder (1), and a filtering and purifying mechanism (11), a power mechanism (12) and a plasma releasing mechanism (13) are arranged in the cylinder (1); The filtering and purifying mechanism (11) comprises a partition plate (1101) fixedly mounted at the middle position of the cylinder (1), a plurality of processing tanks (1102) being mounted on the partition plate (1101), the processing tanks (1102) being provided with upper and lower openings, and a plurality of filter discs (1103) being movably mounted in the processing tanks (1102), and a common vibration shaft (1104) being mounted in the middle of the plurality of filter discs (1103) to facilitate the vibration of the filter discs (1103) for filtering and purifying sewage; The power mechanism (12) comprises a power shaft (1201) installed below the processing tank (1102), a cam (1202) is mounted on the power shaft (1201), and a support wheel (1108) matching the cam (1202) is installed at the bottom of the vibration shaft (1104), so as to facilitate the vibration shaft (1104) to shake up and down; The plasma release mechanism (13) comprises a vertical tube (1301) installed at the center of the partition plate (1101), a balloon tube (1302) is installed at the bottom of the vertical tube (1301), a plurality of inverted tubes (1303) are installed through the balloon tube (1302), and an aeration nozzle is connected to the tube head of the inverted tube (1303) to facilitate uniform release of plasma gas; The reaction box (2) is further provided with a mixing chamber (21) and a control chamber (22); the cylinder (1) and the mixing chamber (21) are connected and a filter (2101) is installed at the connecting position; a sewage input pipe (14) is installed at the bottom end of the side of the cylinder (1); a discharge pipe (23) is installed at the top end of the side of the mixing chamber (21); a water pump (2301) is also installed on the discharge pipe (23); and a plasma generating device is provided in the control chamber (22).

2. A plasma wastewater treatment device according to claim 1, characterized in that: The filtering and purification mechanism (11) further comprises a plurality of brackets (1105), the brackets (1105) corresponding one to one with the processing tanks (1102) and being mounted on the top of the partition plate (1101), a shaft sleeve (1106) being mounted at the center of the brackets (1105), the top end of the vibration shaft (1104) being slidably inserted into the shaft sleeve (1106), and a vibration spring (1107) being mounted between the top end of the vibration shaft (1104) and the top wall of the shaft sleeve (1106).

3. A plasma wastewater treatment device according to claim 2, characterized in that: The power mechanism (12) further comprises three sets of bevel gears (1203), the bevel gears (1203) being mounted at positions opposite to the ends of the two power shafts (1201), the end of one power shaft (1201) of the four power shafts (1201) extending outside the cylinder (1) and being mounted with a power motor (1205), the power motor (1205) being mounted on the outer surface of the cylinder (1) via a motor frame, the power shaft (1201) being further mounted with a positioning bracket plate (1204), the positioning bracket plate (1204) being mounted on the inner wall of the cylinder (1).

4. A plasma wastewater treatment device according to claim 1, characterized in that: A cover plate (2102) is also installed on the top of the mixing chamber (21), and a stirring motor (2103) is installed at the top center of the cover plate (2102). The output shaft of the stirring motor (2103) extends into the mixing chamber (21) and is connected to a stirring wheel (2104). A channel groove (2105) is also opened on the blade of the stirring wheel (2104), and a hybrid paddle (2106) is horizontally installed in the channel groove (2105). The hybrid paddle (2106) consists of a horizontal axis and two blades, and the two blades are symmetrically arranged at both ends of the horizontal axis about the center of the horizontal axis.

5. The plasma wastewater treatment device according to claim 1, characterized in that: The plasma generating device comprises a sealed ceramic box (2201), a power source (2202) and a gas storage tank (2203); a positive electrode plate (2209) and two negative electrode plates (2210) are arranged in the sealed ceramic box (2201); the two negative electrode plates (2210) are arranged on both sides of the positive electrode plate (2209); the power source (2202) is electrically connected to the positive electrode plate (2209) and the negative electrode plate (2210) via a transmission line.

6. A plasma wastewater treatment device according to claim 5, characterized in that: The top of the gas storage tank (2203) is connected to an air supply pipe (2204), which is connected to the top center of the sealed ceramic box (2201), and an air valve (2205) is also installed on the air supply pipe (2204). The bottom of the gas storage tank (2203) is connected to an air filling pipe (2206), which extends to the outside of the control chamber (22). The bottom center of the sealed ceramic box (2201) is also equipped with an air delivery pipe (2208), which extends into the cylinder (1) and is connected to the vertical pipe (1301).

7. The plasma wastewater treatment device according to claim 1, characterized in that: The bottom cover (3) comprises a funnel mouth (301) and a hollow disk (302) installed in the funnel mouth (301); two sealing rings (303) are installed at the center of the hollow disk (302); a plurality of mutually cooperating triangular clamping plates (304) are rotatably installed between the upper and lower sealing rings (303); the cooperating two sides of the triangular clamping plates (304) are arranged in an arc shape, and the ends of the two arc-shaped sides are provided with hinge points; the hinge point closest to the center of the sealing ring (303) is rotatably installed on the sealing ring (303) via a pin shaft.

8. A plasma wastewater treatment device according to claim 7, characterized in that: A bevel gear ring (305) is also rotatably mounted in the hollow disk (302). A plurality of support bars (306) are connected to the inner wall of the bevel gear ring (305). The support bars (306) correspond to the triangular clamping plates (304) one by one and extend to the lower side of the hinge point. The hinge point is rotatably mounted on the support bars (306) via a pin shaft.

9. A plasma wastewater treatment device according to claim 8, characterized in that: A worm (307) is rotatably mounted in the hollow disk (302), the worm (307) being meshed with the helical gear ring (305), and one end of the worm (307) extending to the outside of the bottom cover (3) and connected to a trigger motor (308), which is mounted on the outside of the bottom cover (3) via a motor frame.

10. A treatment method of a plasma wastewater treatment device, applied to a plasma wastewater treatment device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Sewage is injected into the cylinder (1) through the sewage input pipe (14), and the plasma generating device is started to generate high-energy electrons, free radicals and other active particles by ionization and release them to the bottom of the cylinder (1) through the vertical pipe (1301), thereby decomposing organic pollutants in the sewage; S2: After the power mechanism (12) is started, the cam (1202) in the power mechanism (12) can cooperate with the support wheel (1108) at the bottom end of the vibration shaft (1104), thereby pushing the vibration shaft (1104) to shake up and down, and the filter (1103) can be pushed to shake continuously in the treatment tank (1102) through the vibration shaft (1104). When it contacts the plasma gas mixture, the plasma bubbles in the sewage can be dispersed, which is convenient for full contact and mixing with the sewage, and the filter (1103) can also play the effect of blocking and filtering impurities; S3: After being blocked and filtered by the filter sheet (1103), the impurities in the sewage will settle in the bottom cover (3). When cleaning is required, the worm (307) and the bevel gear ring (305) can be used to drive the bevel gear ring (305) to rotate. When the support bar (306) on the bevel gear ring (305) rotates accordingly, the triangular clamping plate (304) can be driven to rotate, so that gaps appear between the multiple triangular clamping plates (304) and gradually expand. At this time, the impurities in the bottom cover (3) will fall down under the action of gravity, making it easier to discharge; S4: After the stirring motor (2103) is started, the stirring wheel (2104) can be driven to rotate. When the stirring wheel (2104) rotates, the sewage can be pushed to float up. In addition, a mixing paddle (2106) is installed in the blades of the stirring wheel (2104). When the stirring wheel (2104) rotates, the mixing paddle (2106) will also rotate continuously, which can fully mix the sewage and plasma, further enhancing the decomposition effect. After the purified clean water continuously floats up, it can be discharged outward through the discharge pipe (23).

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