CN118684292A - A sewage treatment device for papermaking - Google Patents

Abstract

The present invention discloses a papermaking sewage treatment device, which relates to the technical field of papermaking sewage treatment, and includes a support component, which is used to support the whole device and keep it in contact with the ground, increase friction to maintain the stability of the device, and a filtering mechanism, which is used to filter impurities in different types of sewage and collect the filtered impurities, and the top of the support component and the bottom of the filtering mechanism are in a fixed installation. In the present invention, when the device is in use, through the sewage detection component arranged inside the device, including a variety of high-precision analytical instruments, it is possible to conduct a detailed analysis of the sewage, accurately identify the type and concentration of pollutants, and based on the analysis results, the system guides the sewage to the corresponding treatment tank for targeted treatment, significantly improves the treatment effect, and reduces secondary pollution to the environment. Through accurate classification and targeted treatment, unnecessary consumption of drugs and energy consumption is reduced, and the treatment cost is reduced.

Description

A sewage treatment device for papermaking

Technical Field

The invention relates to the technical field of papermaking wastewater treatment, in particular to a papermaking wastewater treatment device.

Background Art

Papermaking wastewater treatment is a vital link in the papermaking industry. It mainly focuses on the effective treatment of sewage generated in the papermaking process to reduce pollution to the environment. The papermaking industry is an industry that causes heavy environmental pollution, but by improving the recycling rate, reducing water consumption and wastewater discharge, and adopting various effective wastewater treatment methods, clean production and sustainable development can be achieved. Papermaking wastewater treatment is not only related to environmental protection, but also involves resource conservation and economic benefits. Through wastewater treatment, valuable resources can be recovered, production costs can be reduced, product quality can be improved, and corporate competitiveness can be enhanced. In short, papermaking wastewater treatment is a complex system project that requires comprehensive consideration of multiple aspects such as wastewater sources, treatment processes, equipment and technology, and operating effects. Through scientific and effective treatment measures and advanced treatment equipment and technology, the harmonious development of the papermaking industry and environmental protection can be achieved.

In the prior art, such as Chinese patent number: CN108264203A, a system and method for treating odor from papermaking wastewater is provided. The system of the present invention includes an inclined screen, a pretreatment unit, an anaerobic tower, an aeration tank, a secondary sedimentation tank and a sludge filter press unit connected in sequence through pipelines, and also includes a multi-layer filler biological spray tower and an activated carbon adsorption device connected through pipelines; the inclined screen, pretreatment unit, anaerobic tower, aeration tank, secondary sedimentation tank and sludge filter press unit are all connected to the multi-layer filler biological spray tower through pipelines, and the pretreatment unit includes a flotation tank and an acidification tank connected in sequence through pipelines. The present invention achieves point-to-surface combination and comprehensive collection, and fully encloses and collects the oblique screen, flotation tank, acidification tank, anaerobic tower, aeration tank, secondary sedimentation tank and sludge treatment equipment through which the wastewater passes, so as to prevent leakage, and the removal rate of odorous gases from papermaking wastewater of the present invention is more than 99%. In addition, the present invention adopts a single-tower biochemical treatment, with low equipment investment and low operating cost.

The above-mentioned waste paper wastewater treatment equipment has achieved low investment and low operating cost when treating wastewater. However, its current mode of unified collection and subsequent filtration and purification has exposed a series of significant problems when facing the diverse nature, composition and treatment requirements of wastewater. These problems have profoundly affected the treatment effect, cost and durability of the equipment, as shown below:

1. Limited treatment effect: Due to the great differences in the types, concentrations and characteristics of pollutants in different sewage, it is often difficult to comprehensively and effectively remove all pollutants using a unified treatment method. For example, papermaking wastewater may be rich in high concentrations of heavy metals, difficult-to-degrade organic matter and other specific pollutants. Therefore, the standard treatment process may not be able to completely remove these harmful substances, resulting in substandard effluent water quality, affecting environmental quality and subsequent utilization;

2. Rising treatment costs: In order to cope with the complexity and diversity of papermaking wastewater properties, unified treatment models often require adjustment of treatment parameters, increase in reagent dosage or extension of treatment time in the hope of achieving ideal treatment effects. However, this approach not only increases reagent and energy consumption, but may also lead to low treatment efficiency and waste of resources. In addition, the use of excessive reagents may also cause secondary pollution, such as eutrophication of water bodies, further exacerbating the environmental burden.

3. Increased equipment wear and tear: There are significant differences in the degree of corrosiveness and physical wear of different papermaking wastewaters on treatment equipment. Certain components in the wastewater may cause severe corrosion to the equipment material. Under a unified treatment model, these highly corrosive wastewaters may accelerate equipment aging and damage and shorten the service life of the equipment. This not only increases the frequency of equipment maintenance and replacement, but also increases the overall operating costs and reduces the reliability and stability of the sewage treatment system.

Summary of the invention

The purpose of the present invention is to provide a papermaking wastewater treatment device, which classifies and treats papermaking wastewater through the equipment, reduces unnecessary chemical consumption and energy consumption, reduces treatment costs, and significantly improves treatment effects, thereby effectively solving the problems raised in the above background.

To achieve the above object, the present invention provides the following technical solution: a papermaking wastewater treatment device, comprising:

A support assembly is used to support the entire device and keep it in contact with the ground, increasing friction to maintain the stability of the device;

The filtering mechanism is used to filter impurities in different types of sewage and collect the filtered impurities;

The classification mechanism is used to detect sewage, classify the degree of sewage pollution, and transport the sewage to different sewage treatment tanks for treatment.

Preferably, the classification mechanism comprises a classification tank, an inner partition plate and a one-way pump B;

The classification tank is provided with an inner partition plate to form four sewage treatment tanks and a storage tank. Four one-way pumps A are fixedly installed on the inner surface wall of the inner partition plate, and the input ends of the four one-way pumps A are all connected to the inside of the storage tank. The output ends of the four one-way pumps A are all fixedly connected with L-shaped guide pipes, and the output ends of the four L-shaped guide pipes are all connected to the inside of the sewage treatment tank;

Four sets of sewage detection components are fixedly installed on the inner surface wall of the storage tank, which can detect the sewage inside it and transmit the detection results to the outside processing unit;

A one-way pump B is fixedly installed at the bottom of the inner wall of the classification tank to transfer the liquid to the inside of the pressure accumulator tube, which then pressurizes the inside of the storage tank and cleans the inside of the storage tank through four sets of high-pressure nozzles;

The outer wall of the pressure storage tube is driven to rotate with an annular tube, and the holes opened on the outer wall are convenient for four groups of high-pressure nozzles to spray out through the inside, so as to clean the residual liquid inside the storage tank. A group of sewage outlets are opened at the bottom of the inner wall of the storage tank, and a group of sealing covers installed on the outer wall of the annular tube are used to seal the sewage outlets.

Preferably, the outer wall of the classification tank is fixedly sleeved with a base, which is used to be received on the top of the support assembly to keep the classification mechanism stable;

An inner annular groove is formed between a group of said sewage outlets;

A top cover is movably embedded on the top of the classification tank, and a circulation pump is fixedly connected to the top of the classification tank. The circulation pump is used to transfer sewage to the inside of the storage tank, and the input end of the circulation pump is fixedly connected to a delivery pipe;

A collecting pipe is fixedly installed at the bottom of the classification tank for collecting sewage output from the sewage outlet, and a switch valve is fixedly connected to the outer wall of the collecting pipe for discharging the sewage inside the collecting pipe through the sewage outlet.

Preferably, the bottom of the annular tube is driven to rotate inside the inner annular groove, and the bearing fixedly sleeved on the outer wall of the annular tube is supported inside the classification tank;

A group of tooth grooves are formed on the inner surface wall of the annular tube, and a transmission gear is meshedly connected to the inner surface wall of the group of tooth grooves;

A fixing groove is provided at the center of the top of the pressure accumulator tube, and an inner micro motor is fixedly inserted into the inner surface wall of the fixing groove to drive the transmission gear to rotate at the same frequency.

Preferably, the filtering mechanism comprises a filter box, an inner linkage frame, two bag filters and a sealing plate;

The filter box is provided with a top groove, an outer slide block, an L-shaped linkage plate and a high-pressure fan;

An outer sliding block is slidably embedded inside a group of the top grooves, an L-shaped linkage plate is fixedly installed on the top of a group of the outer sliding blocks, and a high-pressure fan is fixedly inserted inside the L-shaped linkage plate for cleaning impurities on the tops of the two bag filters.

Preferably, a motor plate is fixedly mounted on the outer wall of the filter box, and a driving motor is mounted on the motor plate. The driving motor drives the driving rod to rotate, thereby adjusting the inclination angle of the sealing plate.

Preferably, the rotating ends of the two driving motors are fixedly connected with driving rods, which act on the inside of the sealing plate to adjust the inclination angle of the sealing plate.

Preferably, the inner linkage frame comprises an inner groove, an inner slide frame, an inner movable groove, an inner slider B and a movable column, as well as a bag filter and a rotating rod A;

The inner surface walls of the two groups of inner moving grooves are both slidably embedded with inner sliding blocks B, and the two groups of inner sliding blocks B are both fixedly installed between the outer surface walls of the moving column.

Preferably, a rotating rod A is movably inserted into the inner surface walls of the two bag filters.

Preferably, two groups of rotating grooves A are preset inside the inner linkage frame, and rotating grooves B are opened between the opposite sides of the two groups of movable columns, and the two groups of rotating rods A and the two groups of rotating rods B are movably inserted into the rotating grooves A and B respectively, and the input end of the conveying pipe is connected to the interior of the filter box.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, when the device is in use, the sewage detection components arranged inside the device, including a variety of high-precision analytical instruments, can conduct a detailed analysis of papermaking sewage and accurately identify the types and concentrations of pollutants. Based on the analysis results, the system guides the sewage to the corresponding treatment tank for targeted treatment, significantly improving the treatment effect and reducing secondary pollution to the environment. Through precise classification and targeted treatment, unnecessary consumption of chemicals and energy is reduced, and the treatment cost is reduced.

2. In the present invention, when the device is in use, the system is provided with an automatic cleaning function. When impurities may remain in the storage tank, the annular tube is driven to rotate by a micro motor, the position of the high-pressure nozzle is adjusted, and the one-way pump is used for pressurization to instantly release high-pressure water flow to thoroughly clean the inner wall of the storage tank. This process does not require human intervention, thereby improving the cleaning efficiency and safety, and ensuring the long-term cleaning and effective use of the storage tank.

3. In the present invention, by assembling two bag filters, the system can effectively intercept and process impurities in sewage, keep the subsequent treatment process smooth, and at the same time, a convenient impurity cleaning mechanism is designed, which uses a drive motor and a sealing plate to drive the bag to flip, and combines a high-pressure fan to blow away impurities, ensuring that the bag continues to work efficiently and reduces maintenance costs and downtime.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of the main structure of a papermaking wastewater treatment device according to the present invention;

FIG2 is a bottom-view cross-sectional perspective view of a classification mechanism in a papermaking wastewater treatment device according to the present invention;

FIG3 is a top plan view of a classification mechanism portion of a papermaking wastewater treatment device according to the present invention;

FIG4 is a cross-sectional perspective view of a classification mechanism in a papermaking wastewater treatment device according to the present invention;

FIG5 is a perspective view of a top cover of a papermaking wastewater treatment device according to the present invention;

FIG6 is a three-dimensional exploded view of the internal part of a classification mechanism in a papermaking wastewater treatment device of the present invention;

FIG7 is a three-dimensional exploded view of the interior of a classification mechanism in a papermaking wastewater treatment device according to the present invention;

FIG8 is an enlarged view of structure A in a papermaking wastewater treatment device of the present invention;

FIG9 is a three-dimensional exploded view of a filtering mechanism in a papermaking wastewater treatment device according to the present invention;

FIG10 is an enlarged view of structure B in a papermaking wastewater treatment device of the present invention;

FIG11 is a three-dimensional exploded view of the interior of a filter mechanism in a papermaking wastewater treatment device according to the present invention;

FIG. 12 is a three-dimensional exploded view of the internal part of the filtering mechanism in a papermaking wastewater treatment device of the present invention.

In the figure: 1. Support assembly; 2. Filter mechanism; 21. Filter box; 211. Top slot; 212. Drive slot; 213. Motor plate; 214. Drive motor; 215. Drive rod; 216. Outer slider; 217. L-shaped linkage plate; 218. High-pressure fan; 22. Recovery box; 23. Inner linkage frame; 231. Inner slot; 232. Rotation slot A; 233. Rotation rod A; 234. Inner slide; 235. Inner moving slot; 236. Inner slider B; 237. Moving column; 238. Rotation slot B; 239. Rotation rod B; 24. Bag filter; 25. Sealing plate; 3. Classification mechanism; 31. Classification tank; 311. Base; 312, inner annular groove; 313, sewage outlet; 32, inner partition plate; 321, sewage treatment tank; 322, one-way pump A; 323, L-shaped guide pipe; 324, storage tank; 33, top cover; 331, circulation pump; 332, delivery pipe; 34, sewage detection component; 35, collection pipe; 351, switch valve; 352, sewage pipe; 361, annular slide; 362, sealing cover; 363, annular pipe; 364, hole; 365, bearing; 366, tooth groove; 37, one-way pump B; 371, pressure storage pipe; 372, high-pressure nozzle; 373, fixing groove; 38, inner micro motor; 381, transmission gear.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

Embodiment 1

Referring to Figures 1 to 12, the present invention provides a papermaking wastewater treatment device, comprising:

Support assembly 1, which is used to support the entire device and keep it in contact with the ground, increasing friction to maintain the stability of the device;

The filtering mechanism 2 is used to filter impurities in different types of sewage and collect the filtered impurities;

The classification mechanism 3 is used to detect the sewage, classify the degree of sewage pollution, and transport the sewage to different sewage treatment tanks 321 for treatment;

The classification mechanism 3 includes a classification tank 31, an inner partition plate 32 and a one-way pump B37. The classification tank 31 has an inner partition plate 32 inside, forming four sewage treatment tanks 321 and a storage tank 324. Four one-way pumps A322 are fixedly installed on the inner wall of the inner partition plate 32, and the input ends of the four one-way pumps A322 are all connected to the inside of the storage tank 324. The output ends of the four one-way pumps A322 are fixedly connected to an L-shaped guide tube 323, and the output ends of the four L-shaped guide tubes 323 are all connected to the inside of the sewage treatment tank 321. Four groups of sewage detection components 34 are fixedly installed on the inner wall of the storage tank 324, which can detect the sewage inside it and transmit the detection results to the outside of the processing unit. The bottom of the inner wall of the classification tank 31 A one-way pump B37 is fixedly installed on the part to transfer the liquid to the inside of the pressure accumulator tube 371, and then the inside thereof is pressurized, and the inside of the storage tank 324 is cleaned through four groups of high-pressure nozzles 372. The outer wall of the pressure accumulator tube 371 is driven to rotate with an annular tube 363, and the holes 364 opened on the outer wall are convenient for the four groups of high-pressure nozzles 372 to spray out through the inside thereof, so as to clean the residual liquid inside the storage tank 324. A group of sewage outlets 313 are opened at the bottom of the inner wall of the storage tank 324, and a group of sealing covers 362 installed on the outer wall of the annular tube 363 act on the sewage outlet 313 to seal the sewage outlet 313. The outer wall of the classification tank 31 is fixedly provided with a base 311, which is used to be received on the top of the support assembly 1 to keep the classification mechanism 3 stable.

An inner annular groove 312 is formed between a group of sewage outlets 313. A top cover 33 is movably embedded on the top of the classification tank 31. A circulation pump 331 is fixedly connected to the top of the classification tank 31. The circulation pump 331 is used to transfer sewage to the inside of the storage tank 324. The input end of the circulation pump 331 is fixedly connected to a delivery pipe 332. A collection pipe 35 is fixedly installed at the bottom of the classification tank 31 for collecting sewage output from the sewage outlet 313. A switch valve 351 is fixedly connected to the outer wall of the collection pipe 35 for collecting the sewage inside the collection pipe 35 through the sewage pipe 352. Sewage is discharged, and the bottom of the annular tube 363 is driven to rotate inside the inner annular groove 312. The bearing 365 is fixedly mounted on the outer wall of the annular tube 363, and its function is carried out inside the classification tank 31. A group of tooth grooves 366 are opened on the inner wall of the annular tube 363, and the inner wall of a group of tooth grooves 366 is meshed and connected with a transmission gear 381. A fixed groove 373 is opened at the top center of the pressure accumulation tube 371, and an inner micro motor 38 is fixedly inserted into the inner wall of the fixed groove 373, which acts to drive the transmission gear 381 to rotate at the same frequency.

In this embodiment, after the papermaking wastewater from which impurities have been filtered is pumped by the circulation pump 331 and is delivered to the interior of the storage tank 324 through the delivery pipe 332 as a delivery path. At this time, after the wastewater fills the storage tank 324, the wastewater can be detected and processed by the external wastewater detection component 34, and the types and concentrations of pollutants in the wastewater can be classified into physical pollution, biological pollution, chemical pollution and corrosive pollution. The wastewater is monitored and analyzed by the four groups of wastewater detection components 34, such as water quality analyzers, spectrophotometers, ion chromatographs, and biological toxicity detectors. The wastewater is classified by the data acquisition and processing system and the comprehensive analysis and judgment functions, and the types of wastewater are distinguished. Then, the wastewater can be transferred to different wastewater treatment tanks 321 by relying on the four delivery pipes 332, and different types of wastewater can be treated intensively in different wastewater treatment tanks 321. Different treatment methods and processes are used for different types of wastewater to improve the treatment effect and reduce the treatment cost.

After the sewage analysis is performed inside the storage tank 324, sewage impurities are likely to remain inside. The internal micro motor 38 at the top can drive the transmission gear 381 to rotate. Because the transmission gear 381 and the tooth groove 366 are meshed and driven, the annular tube 363 can be kept rotating forty-five degrees clockwise under the support of the bottom bearing 365, so that the output ends of the four groups of high-pressure nozzles 372 are all in the middle position of the hole 364. Because the four sealing covers 362 are in a fixed connection with the outer wall of the annular tube 363, the bottom annular slide bar 361 is slidably embedded in the inner annular With the cooperation of the inside of the groove 312, the four sealing covers 362 are kept staggered with the drain port 313. Then, when the one-way pump B37 can absorb the external moisture into itself, and then transfer it to the inside of the pressure storage pipe 371, and continue to pressurize the inside, when the pressure continues to a certain value, the four groups of high-pressure nozzles 372 are released instantly, and the moisture is sprayed out in the form of high pressure, completing the effective cleaning of the inner wall of the storage tank 324, and the flushed water enters the inside of the collection pipe 35 through the drain port 313, and finally the switch valve 351 is opened to discharge the flushed water through the drain pipe 352.

Embodiment 2

As shown in FIG. 1 , FIG. 9 , FIG. 10 , FIG. 11 and FIG. 12 , the filter mechanism 2 includes a filter box 21 , an inner linkage frame 23 , two bag filters 24 and a sealing plate 25 ;

The filter box 21 is provided with a top groove 211, an outer slide block 216, an L-shaped linkage plate 217 and a high-pressure fan 218;

An outer slider 216 is slidably embedded inside a group of top grooves 211, and an L-shaped linkage plate 217 is fixedly installed on the top of a group of outer sliders 216. A high-pressure fan 218 is fixedly inserted inside the L-shaped linkage plate 217 for cleaning impurities on the tops of the two bag filters 24. A motor plate 213 is fixedly installed on the outer wall of the filter box 21, and a driving motor 214 is installed on the motor plate 213. The driving motor 214 drives the driving rod 215 to rotate, thereby adjusting the inclination angle of the sealing plate 25. The rotating ends of the two driving motors 214 are fixedly connected with the driving rod 215, which acts on the inside of the sealing plate 25 to adjust the inclination angle of the sealing plate 25.

The inner linkage frame 23 includes an inner groove 231, an inner slide 234, an inner movable groove 235, an inner slider B236 and a movable column 237, as well as a bag filter 24 and a rotating rod A233. The inner surfaces of the two groups of inner movable grooves 235 are slidably embedded with inner sliders B236, and the two groups of inner sliders B236 are fixedly installed between the outer surfaces of the movable column 237. The inner surfaces of the two bag filters 24 are movably inserted with rotating rods A233. Two groups of rotating grooves A232 are preset inside the inner linkage frame 23, and a rotating groove B238 is opened between the opposite sides of the two groups of movable columns 237, and the two groups of rotating rods A233 and the two groups of rotating rods B239 are movably inserted inside the rotating grooves A232 and B238 respectively, and the input end of the conveying pipe 332 is connected to the interior of the filter box 21.

In this embodiment, when sewage enters the interior of the filter mechanism 2, the two bag filters 24 arranged inside it can effectively treat the impurities therein, and then collect them in the interior of the filter box 21. After long-term use, the impurities are accumulated on the bag filters 24, and then they need to be treated. By relying on the power-on state of the two driving motors 214, the two driving rods 215 are kept rotating in the driving groove 212. Because the two driving rods 215 are fixedly installed in the sealing plate 25, the sealing plate 25 can be driven to rotate ninety degrees. The latter two groups of inner slides 234 are embedded and moved inside the inner groove 231, so as to keep the components fixed thereto moving outward, and the latter two groups of inner sliders B236 are respectively embedded and moved inside the inner movable groove 235, so as to keep the two bag filters 24 moving to one side and keep them flipped. Under the blowing of a group of high-pressure fans 218 at the top, the impurities can be separated from the outer wall of the bag filters 24 by high-pressure wind force and collected inside the recovery box 22, and the input end of the conveying pipe 332 is connected to the inside of the filter box 21.

The working principle of the whole mechanism is as follows: sewage first enters the filter mechanism 2, and the two bag filters 24 installed inside it effectively intercept and process impurities, and then the impurities are collected in the filter box 21. After long-term use, the impurities accumulated on the bags need to be cleaned. At this time, the two driving motors 214 are started, driving the driving rod 215 to rotate in the driving groove 212. Since the driving rod 215 is fixedly connected to the sealing plate 25, the sealing plate 25 rotates 90 degrees accordingly. This action causes the two sets of inner slides 234 to slide in the inner groove 231, driving the related components The inner slider B236 moves outward, and at the same time, the inner slider B236 moves in the inner moving groove 235, ensuring that the two bag filters 24 move to one side and flip over, and the high-pressure fan 218 on the top releases high-pressure wind to blow away impurities on the bags, which are then collected in the recovery box 22. The sewage filtered by the bags is extracted by the circulation pump 331 and transported to the storage tank 324 through the delivery pipe 332. Once the storage tank 324 is full, the external sewage detection component 34 (including water quality analyzer, spectrophotometer, ion chromatograph, biological toxicity detector, etc.) is immediately started. , conduct a detailed analysis of the sewage and classify it according to the type and concentration of pollutants (such as physical, biological, chemical and corrosive pollution). Then, according to the analysis results, the sewage is guided to the corresponding sewage treatment tank 321 through four conveying pipes 332 for targeted treatment to optimize the treatment effect and reduce costs. After the sewage analysis is completed, impurities may remain in the storage tank 324. At this time, the internal micro motor 38 drives the transmission gear 381 to rotate and mesh with the tooth groove 366, driving the annular tube 363 to rotate 45 degrees clockwise. Ensure that the four groups of high-pressure nozzles 372 are aligned with the middle of the hole 364. The four sealing covers 362 are fixed to the annular tube 363 and are affected by the sliding of the bottom annular slide bar 361 in the inner annular groove 312, so they remain misaligned with the drain port 313. The one-way pump B37 draws water from the outside into the pressure storage pipe 371 to increase the pressure. When the pressure reaches the set value, the high-pressure nozzle 372 instantly releases the high-pressure water flow to thoroughly clean the inner wall of the storage tank 324. The flushing water flows into the collection pipe 35 through the drain port 313 and is finally discharged by opening the switch valve 351 and the drain pipe 352.

Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A papermaking wastewater treatment device, characterized in that it comprises: A support assembly (1) is used to support the entire device and maintain contact with the ground, thereby increasing friction to maintain the stability of the device; The filtering mechanism (2) is used to filter impurities in different types of sewage and collect the filtered impurities; The classification mechanism (3) is used to detect the sewage, classify the degree of sewage pollution, and transport the sewage to different sewage treatment tanks (321) for treatment; The classification mechanism (3) comprises a classification tank (31), an inner partition plate (32), and a one-way pump B (37); the classification tank (31) has an inner partition plate (32) inside, forming four sewage treatment tanks (321) and a storage tank (324); four one-way pumps A (322) are fixedly mounted on the inner surface wall of the inner partition plate (32), and the input ends of the four one-way pumps A (322) are all connected to the inside of the storage tank (324); the output ends of the four one-way pumps A (322) are fixedly connected to an L-shaped flow guide pipe (323), and the output ends of the four L-shaped flow guide pipes (323) are all connected to the inside of the sewage treatment tank (321); four groups of sewage detection components (34) are fixedly mounted on the inner surface wall of the storage tank (324), and are capable of detecting sewage therein; The detection result is transmitted to the inside of the external processing unit. A one-way pump B (37) is fixedly installed at the bottom of the inner wall of the classification tank (31) to transmit the liquid to the inside of the pressure storage pipe (371), and then the inside thereof is pressurized. The inside of the storage tank (324) is cleaned through four groups of high-pressure nozzles (372). The outer wall of the pressure storage pipe (371) is driven to rotate with an annular tube (363). The holes (364) opened on the outer wall of the annular tube facilitate the four groups of high-pressure nozzles (372) to spray out through the inside thereof, so as to clean the residual liquid in the storage tank (324). A group of sewage outlets (313) are opened at the bottom of the inner wall of the storage tank (324). A group of sealing covers (362) installed on the outer wall of the annular tube (363) are used to seal the sewage outlet (313); The outer wall of the classification tank (31) is fixedly sleeved with a base (311) for receiving the top of the support assembly (1) to keep the classification mechanism (3) stable. An inner annular groove (312) is formed between a group of the sewage outlets (313). A top cover (33) is movably embedded on the top of the classification tank (31). A circulation pump (331) is fixedly connected to the top of the classification tank (31). The circulation pump (331) is used to transfer sewage to the inside of the storage tank (324). The input end of the circulation pump (331) is fixedly connected to a delivery pipe (332). A collection pipe (35) is fixedly installed at the bottom of the classification tank (31) for collecting sewage output from the sewage outlet (313). The outer wall of the collection pipe (35) is fixedly connected to a switch valve (351) for discharging sewage inside the collection pipe (35) through the sewage outlet (352); The bottom of the annular tube (363) is driven to rotate inside the inner annular groove (312); a bearing (365) is fixedly sleeved on the outer wall of the annular tube (363), and its function is carried out inside the classification tank (31); a group of tooth grooves (366) are opened on the inner wall of the annular tube (363); the inner wall of a group of tooth grooves (366) is meshedly connected with a transmission gear (381); a fixed groove (373) is opened at the top center of the pressure storage tube (371); an inner micro motor (38) is fixedly inserted into the inner wall of the fixed groove (373), which acts to drive the transmission gear (381) to rotate at the same frequency. 2. A papermaking wastewater treatment device according to claim 1, characterized in that: the filtering mechanism (2) comprises a filtering box (21), an inner linkage frame (23), two bag filters (24) and a sealing plate (25); The filter box (21) is provided with a top groove (211), an outer sliding block (216), an L-shaped linkage plate (217) and a high-pressure fan (218); An outer sliding block (216) is slidably embedded inside one group of the top grooves (211), an L-shaped linkage plate (217) is fixedly installed on the top of one group of the outer sliding blocks (216), and a high-pressure fan (218) is fixedly inserted inside the L-shaped linkage plate (217) for cleaning impurities on the tops of the two bag filters (24). 3. A papermaking wastewater treatment device according to claim 2, characterized in that: a motor plate (213) is fixedly mounted on the outer wall of the filter box (21), and a driving motor (214) is mounted on the motor plate (213), and the driving motor (214) drives the driving rod (215) to rotate, thereby adjusting the inclination angle of the sealing plate (25). 4. A papermaking wastewater treatment device according to claim 3, characterized in that: the rotating ends of the two driving motors (214) are fixedly connected to driving rods (215), which act on the inside of the sealing plate (25) to adjust the inclination angle of the sealing plate (25). 5. A papermaking wastewater treatment device according to claim 4, characterized in that: the inner linkage frame (23) comprises an inner groove (231), an inner slide frame (234), an inner movable groove (235), an inner slide block B (236) and a movable column (237), as well as a bag filter (24) and a rotating rod A (233); The inner surface walls of the two groups of inner movable grooves (235) are both slidably embedded with inner sliding blocks B (236), and the two groups of inner sliding blocks B (236) are both fixedly installed between the outer surface walls of the movable column (237). 6. A papermaking wastewater treatment device according to claim 5, characterized in that a rotating rod A (233) is movably inserted into the inner surface wall of the two bag filters (24). 7. A papermaking wastewater treatment device according to claim 6, characterized in that: two groups of rotating grooves A (232) are preset inside the inner linkage frame (23), and rotating grooves B (238) are opened between the opposite sides of the two groups of movable columns (237), and the two groups of rotating rods A (233) and the two groups of rotating rods (B239) are movably inserted into the rotating grooves A (232) and the rotating grooves B (238) respectively, and the input end of the conveying pipe (332) is connected to the inside of the filter box (21).