Sewage treatment integrated device and sewage treatment system

Abstract

The invention relates to the technical field of sewage treatment equipment, and particularly discloses a sewage treatment integrated device and a sewage treatment system.The sewage treatment integrated device comprises a treatment box, a filtering mechanism is arranged in the treatment box, the filtering mechanism comprises four screening frames arranged in the treatment box, and the four screening frames are sequentially arranged in the treatment box from top to bottom in a sliding mode; a scraping piece is arranged above the second screening frame and comprises a fixed frame fixedly arranged on the right side of the upper surface of the second screening frame, a T-shaped sliding frame is arranged in the fixed frame in a sliding mode, the upper surface of the T-shaped sliding frame is connected with a claw rod frame through a lifting plate, and an arc-shaped concave groove is formed in the outer side of the claw rod frame. The circulating process of alternate filtration and self-cleaning of the filtering mechanism can be realized through alternate operation of positive and negative rotation of the motor, continuous and automatic treatment of sewage is realized, the linkage of the structure is effectively improved, and the manufacturing cost and energy consumption of equipment are reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to an integrated wastewater treatment device and wastewater treatment system. Background Technology

[0002] Integrated wastewater treatment devices have become one of the core equipment for wastewater treatment and are widely used in various scenarios such as industrial production, urban life, and rural ecological governance. Their core design concept revolves around integrated filtration and impurity separation. By integrating functions such as filtration, sedimentation, and preliminary purification in a single tank, centralized treatment of wastewater can be achieved.

[0003] Currently, existing wastewater treatment devices typically employ multi-stage filter screens or grid structures to filter impurities in wastewater in stages. This involves setting up filter components with different pore sizes to sequentially intercept large and fine particles in the wastewater, thereby improving the quality of the effluent. In terms of drive mechanism, most devices are equipped with two or more motors, which are used to drive the movement and switching of filter components and the impurity removal action of cleaning components. Some devices also add a separate vibration mechanism to assist in cleaning impurities in the gaps between the filter screens.

[0004] Because the existing filtration and cleaning components lack a coordinated linkage mechanism, the configuration of multi-motor drive and separate cleaning mechanism not only increases the complexity of equipment structure, manufacturing cost and assembly difficulty, but also has problems such as asynchronous power output and high energy consumption. This results in the sewage treatment process needing to be frequently paused to cooperate with the impurity cleaning operation, leading to poor treatment continuity and low efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated wastewater treatment device and wastewater treatment system, which aims to solve the technical problems in the prior art.

[0006] To achieve the above objectives, the present invention provides an integrated wastewater treatment device, comprising a treatment tank, a filtration mechanism disposed within the treatment tank, the filtration mechanism comprising four screening frames disposed within the treatment tank, connecting plates slidably connected to the treatment tank on both sides of the four screening frames, a driving mechanism fixedly disposed on the outer side of one of the connecting plates, the four screening frames being a first screening frame, a second screening frame, a third screening frame, and a fourth screening frame, the four screening frames being slidably disposed in the treatment tank from top to bottom; A scraper is provided above the second screening frame. The scraper includes a fixed frame fixedly installed on the right side of the upper surface of the second screening frame. A T-shaped slide is slidably installed inside the fixed frame. The upper surface of the T-shaped slide is connected to the claw rod frame through a lifting plate. An arc-shaped recessed groove is provided on the outer side of the claw rod frame. Side rods are provided on both sides of the lifting plate. A sliding cavity for sliding the side rods is opened on the inner side wall of the processing box. The sliding cavity includes a short sliding groove. The short sliding groove is connected to the end of the transverse scraping groove through an inclined upper sliding groove. The other end of the transverse scraping groove is connected to the middle of the transverse constant groove through an inclined lower sliding groove. The end of the transverse constant groove is connected to the intersection of the short sliding groove and the inclined upper sliding groove. A guide plate is rotatably provided at the intersection. A limiting block is provided below the guide plate.

[0007] The screening frame includes a sliding frame that is slidably connected to the processing box. A filter grid is rotatably disposed within the sliding frame. A rectangular mesh strip is disposed within the filter grid. The claw rod frame is adapted to the rectangular mesh strip of the filter grid. The gap between the rectangular mesh strips of the filter grid in the first screening frame and the third screening frame is greater than the gap between the rectangular mesh strips of the filter grid in the second screening frame and the fourth screening frame.

[0008] Each of the four screening frames is provided with a reset rod below it. The surface of the reset rod is provided with an inclined surface. The inclined surfaces of the reset rods provided below the first and second screening frames are in the same direction, while the inclined surfaces of the reset rods below the third and fourth screening frames are opposite to those of the first and second screening frames.

[0009] The treatment box contains a filter chamber formed in the middle of its inner side by multiple partitions. The right side of the filter chamber is a first impurity chamber, and the left side of the filter chamber is a second impurity chamber. A sewage pipe is connected to the top of the filter chamber, and a back plate is fixedly installed on the back of the treatment box.

[0010] The first and second screening frames slide within the first impurity chamber and the filter chamber, respectively. The third and fourth screening frames slide within the second impurity chamber and the filter chamber. The arc-shaped recessed groove of the claw rod frame on the upper surface of the second screening frame faces the first impurity chamber. The scraping element is provided on the right side of the upper surface of both the third and fourth screening frames, and the arc-shaped recessed groove of the claw rod frame on both the third and fourth screening frames faces the second impurity chamber.

[0011] In this configuration, the sliding cavity adapted to the scraper on the upper surface of the third screening frame is arranged in the opposite direction to the sliding cavity adapted to the second screening frame. In the sliding cavity adapted to the scraper on the upper surface of the fourth sub-frame, the guide plate is located at the intersection of the inclined sliding groove and the transverse constant groove.

[0012] The bottom of the filter screen of the fourth screening frame is fixedly provided with an elastic auxiliary rod, and an elastic main rod adapted to the elastic auxiliary rod is fixedly provided in the second impurity chamber. The elastic auxiliary rod and the reset rod provided below the fourth screening frame do not interfere with each other.

[0013] The driving mechanism includes four racks fixedly connected to the four connecting plates. Each of the four racks is fitted with a driving gear. The driving gears on the outer sides of the first screening frame and the third screening frame are connected by two first synchronous pulleys and a first synchronous belt. The driving gear on the outer side of the first screening frame is equipped with a motor.

[0014] A transmission gear is meshed below the drive gear on the outer side of the first screening frame. The transmission gear and the drive gear on the outer side of the second screening frame are connected by two second synchronous pulleys and a second synchronous belt. The transmission gear and the drive gear on the outer side of the fourth screening frame are connected by two third synchronous pulleys and a third synchronous belt.

[0015] One of the wastewater treatment systems includes an integrated wastewater treatment device as described in any one of claims 1-9.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A single motor, in conjunction with the precise transmission of drive gears, transmission gears, synchronous pulleys, and synchronous belts, can drive four screening frames to complete the entire process of alternating filtration, impurity cleaning, and component reset. No additional drive or independent cleaning mechanism is required, which effectively simplifies the equipment structure and reduces manufacturing costs and operating energy consumption.

[0017] 2. The system employs two sets of screening combinations: the first and fourth screening frames, and the second and third screening frames, which combine upper coarse filtration and lower fine filtration. While one set performs graded filtration in the filtration chamber, the other set simultaneously cleans impurities in the impurity chamber. Seamless switching is achieved through forward and reverse rotation of the motor, ensuring continuous and uninterrupted wastewater treatment and effectively improving treatment efficiency.

[0018] 3. It integrates a triple cleaning function of precise scraping, directional tilting, and elastic vibration. The claw rod frame of the scraping component is precisely matched with the filter grid bar to scrape off impurities attached to the surface. The inclined surface of the reset rod triggers the rotation of the filter grid, directional tilting off the accumulated impurities. The elastic auxiliary rod of the fourth screening frame impacts and vibrates with the elastic main rod, shaking off small impurities in the mesh gaps. The triple coordination ensures that the filter grid is not clogged and maintains a stable filtration throughput. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an integrated wastewater treatment device according to the present invention.

[0021] Figure 2 This is a perspective view of an integrated wastewater treatment device according to the present invention.

[0022] Figure 3 This is an exploded view of the scraper component of the present invention.

[0023] Figure 4 This is a schematic diagram of the sliding cavity structure adapted to the second screening frame of the present invention.

[0024] Figure 5 This is the invention Figure 4 Enlarged view of the local structure at point A.

[0025] Figure 6 This is a schematic diagram of the sliding cavity structure adapted to the third and fourth screening frames of the present invention.

[0026] Figure 7 This is a schematic diagram of the structure of the elastic main rod and the elastic secondary rod of the present invention.

[0027] Figure 8 This is a schematic diagram of the internal structure of the processing box of the present invention.

[0028] Figure 9 This is a schematic diagram of the drive mechanism of the present invention.

[0029] 1-Processing box, 101-Filter chamber, 102-First impurity chamber, 103-Second impurity chamber, 104-Sewage pipe, 105-Divider plate, 106-Back plate, 2-Screwing frame, 21-Scraper, 2101-Fixed frame, 2102-T-shaped slide, 2103-Lifting plate, 2104-Claw rod frame, 2105-Arc-shaped recessed groove, 2106-Side rod, 22-Sliding chamber, 2201-Short chute, 2202-Inclined upper chute, 2203-Transverse scraping chute, 2204-Inclined lower chute, 2205-Transverse constant chute, 2206-Guide plate, 22 07-Restriction block, 201-First screening frame, 202-Second screening frame, 203-Third screening frame, 204-Fourth screening frame, 2041-Sliding frame, 2042-Filter grid, 205-Connecting plate, 206-Reset rod, 207-Elastic auxiliary rod, 208-Elastic main rod, 3-Drive mechanism, 301-Rack, 302-Drive gear, 303-First synchronous pulley, 304-First synchronous belt, 305-Motor, 306-Transmission gear, 307-Second synchronous pulley, 308-Second synchronous belt, 309-Third synchronous pulley, 310-Third synchronous belt. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0031] Please see Figures 1-9 The present invention provides an integrated wastewater treatment device.

[0032] In this embodiment, four screening frames 2 are slidably connected to the processing box 1 via connecting plates 205. The first screening frame 201 and the second screening frame 202 are arranged horizontally, and the third screening frame 203 and the fourth screening frame 204 are arranged right-left. They slide within the processing box 1 via the connecting plates 205 on both sides, achieving smooth reciprocating sliding of the screening frames 2 within the processing box 1. The drive mechanism 3 is fixed to the outside of one side of the connecting plate 205, providing drive for the sliding of the screening frames 2. A fixed frame 2101 is fixedly installed on the right side of the upper surface of the second screening frame 202. The vertical part of the T-shaped slide 2102 is embedded in the cavity inside the fixed frame 2101 and can slide up and down along the cavity. The upper surface of the horizontal part is fixed to the lifting plate 2103. The arc-shaped recessed groove 2105 on the outer side of the claw rod frame 2104 adopts a smooth curved surface design, which not only facilitates scraping off impurities, but also guides the impurities to slide down in a direction. The side rods 2106 on both sides of the lifting plate 2103 are in clearance fit with the sliding cavity 22 opened in the inner side wall of the processing box 1. The sliding grooves of each section of the sliding cavity 22 are designed with smooth transition to ensure that the side rods 2106 slide smoothly. The guide plate 2206 is rotatably connected to the inner wall of the sliding cavity 22 through a rotating shaft. The limiting block 2207 is set below the guide plate 2206, which only allows the guide plate 2206 to rotate upward, so as to prevent the side rods 2106 from deviating from the trajectory when sliding in the opposite direction.

[0033] The inner side of the screening frame 2 is rotatably connected to the edge of the filter grid 2042 via a bearing, allowing the filter grid 2042 to rotate around the bearing axis. The rectangular mesh bars of the first screening frame 201 and the third screening frame 203 are used to intercept large particulate impurities in the sewage, such as stones and plastics. The rectangular mesh bars of the second screening frame 202 and the fourth screening frame 204 are set to intercept fine particulate impurities such as suspended solids, thus achieving graded filtration. The claw tooth spacing of the claw rod frame 2104 corresponds to the rectangular mesh bar spacing of the filter grid 2042 above, and the claw tooth thickness is slightly smaller than the mesh bar spacing, ensuring that the claw rod frame 2104 can accurately embed into the mesh bar spacing when it moves, thoroughly scraping off the attached impurities.

[0034] Secondly, each of the four screening frames 2 has a reset rod 206 at the bottom of its sliding frame 2041, and the edge of the filter grid 2042 is slidably connected to the reset rod 206. The end of the reset rod 206 away from the screening frame 2 has an inclined surface. The inclined surfaces of the reset rod 206 below the first screening frame 201 and the second screening frame 202 are both facing the first impurity chamber 102. When the screening frames 201 / 202 move toward the first impurity chamber 102, the inclined surfaces push the filter grid 2042 to rotate toward the first impurity chamber 102. The inclined surfaces of the reset rod 206 below the third screening frame 203 and the fourth screening frame 204 are facing the second impurity chamber 103, ensuring that when the screening frames 203 / 204 move toward the second impurity chamber 103, the filter grid 2042 rotates in the corresponding direction, realizing the directional dumping of filtered impurities.

[0035] Meanwhile, the interior of the treatment box 1 is enclosed by different partition plates 105 to form a filter chamber 101 in the central area. The width of the filter chamber 101 is adapted to the width of the screening frame 2, ensuring that the screening frame 2 can fully cover the sewage flow path in the filter chamber 101. The bottom of the first impurity chamber 102 on the right side of the filter chamber 101 and the second impurity chamber 103 on the left side are provided with collection hoppers to facilitate the concentrated accumulation of impurities and subsequent cleaning. The sewage pipe 104 is set above the filter chamber 101. The sewage pipe 104 can be connected to the external sewage interface through a flange. The outlet of the sewage pipe 104 faces the central area of ​​the filter chamber 101 to ensure that the sewage is evenly distributed on the upper surface of the first screening frame 201. The back plate 106 of the treatment box 1 is fixed to the back of the treatment box 1 with bolts. The back plate 106 is used to protect the drive mechanism 3.

[0036] In addition, the claw rod frame 2104 on the upper surface of the second screening frame 202 has an arc-shaped recessed groove 2105 facing the first impurity chamber 102, so that the scraped impurities can fall directly into the first impurity chamber 102 along the arc surface; the scraping member 21 on the right side of the upper surface of the third screening frame 203 and the fourth screening frame 204 has the same structure as the scraping member 21 of the second screening frame 202, and the arc-shaped recessed groove 2105 of its claw rod frame 2104 faces the second impurity chamber 103, ensuring that the scraped impurities fall accurately into the second impurity chamber 103 and preventing impurities from scattering in the filter chamber 101.

[0037] Secondly, the sliding cavity 22 adapted to the scraper 21 on the upper surface of the third screening frame 203 has its internal grooves arranged in the opposite direction to those of the sliding cavity 22 adapted to the second screening frame 202. This adapts to the direction in which the third screening frame 203 moves toward the second impurity cavity 103, ensuring that the claw rod frame 2104 can accurately scrape the filter grid 2042 of the second screening frame 202. In the sliding cavity 22 corresponding to the scraper 21 on the upper surface of the fourth screening frame 204, the guide plate 2206 is fixed to the inclined sliding groove 2204 and the transverse constant through a rotating shaft. At the midpoint of the intersection of troughs 2205, the side rod 2106 slides directly from the short slide trough 2201 to the other end of the transverse constant trough 2205. When the side rod 2106 moves in the opposite direction, it can slide directly upward from the transverse constant trough 2205 to the inclined slide trough 2204 via the guide plate 2206, thereby entering the transverse scraping trough 2203 to clean the filter grid 2042 of the third screening frame 203 above, thus preventing the side rod 2106 from continuously moving between the short slide trough 2201 and the transverse constant trough 2205.

[0038] Meanwhile, the bottom of the filter grid 2042 of the fourth screening frame 204 is fixed with two symmetrically arranged elastic auxiliary rods 207. The elastic auxiliary rods 207 are made of spring steel and have good elasticity and toughness. The partition plate 105 inside the second impurity chamber 103 is fixed with an elastic main rod 208 corresponding to the position of the elastic auxiliary rods 207. The elastic main rod 208 is also made of spring steel, and its axis is in the same vertical plane as the axis of the elastic auxiliary rods 207. When the fourth screening frame 204 moves to the limit position in the second impurity chamber 103, the filter grid 2042 rotates around the sliding frame 2041, causing the elastic auxiliary rods 207 and the elastic main rods 208 to collide elastically. The resulting vibration is transmitted to the entire mesh structure through the filter grid 2042, shaking off the small impurities stuck in the gaps between the rectangular mesh bars. The installation position of the elastic auxiliary rods 207 avoids the reset rod 206 below the fourth screening frame 204, and the two do not contact or interfere with each other during the movement.

[0039] In addition, the four racks 301 of the drive mechanism 3 are fixed to the connecting plates 205 of the four screening frames 2 respectively. The teeth of the racks 301 face downward and mesh with the drive gears 302 below. The outer side of the drive gears 302 is fixedly provided with first synchronous pulleys 303. The drive gears 302 on the outer side of the first screening frame 201 and the third screening frame 203 are both fixed with first synchronous pulleys 303. The two first synchronous pulleys 303 are connected by a first synchronous belt 304 to realize the synchronous rotation of the two. The output shaft of the motor 305 is connected to the drive gears 302 through a coupling to provide power for the rotation of the drive gears 302, thereby driving the first screening frame 201 and the third screening frame 203 to slide synchronously.

[0040] Furthermore, a transmission gear 306 is provided below the drive gear 302 on the outer side of the first screening frame 201. The transmission gear 306 is rotatably mounted on the outer wall of the processing box 1 via bearings. The transmission gear 306 meshes with the drive gear 302 of the first screening frame 201. A second synchronous pulley 307 is provided on the outer side of the transmission gear 306. The second synchronous pulley 307 is fixed on both the transmission gear 306 and the drive gear 302 on the outer side of the second screening frame 202. Power transmission is achieved through the second synchronous belt 308, causing the second screening frame 202 to move in tandem with the first screening frame 201. A third synchronous pulley 309 is fixed on both the transmission gear 306 and the drive gear 302 on the outer side of the fourth screening frame 204. Power transmission is achieved through the third synchronous belt 310, causing the fourth screening frame 204 to move in tandem with the first screening frame 201. The partition frame 204 is linked with the first screening frame 201, and through the meshing of the drive gear 302 and the transmission gear 306, the movement force direction of the second screening frame 202 and the third screening frame 203 is opposite to the movement force of the first screening frame 201 and the fourth screening frame 204. The drive gear 302 and the transmission gear 306 are restricted to the side away from the processing box 1 and are rotatably connected to the back plate 106. Thus, the back plate 106 ensures the stability and protection of the drive mechanism 3. Through the cooperation of the drive gear 302, the transmission gear 306, the synchronous pulleys 303 / 307 / 309 and the synchronous belts 304 / 308 / 310, only one motor 305 is needed to drive the four screening frames 2 to move along the preset trajectory, so as to realize the coordinated operation of filtration and cleaning.

[0041] In the integrated wastewater treatment device and system of this embodiment, during specific use, the wastewater pipe 104 is connected to the wastewater source, the lower end of the filter chamber 101 is connected to the next treatment step, and the lower ends of the first impurity chamber 102 and the second impurity chamber 103 are connected to the impurity collection device. Initially, the first screening frame 201 and the fourth screening frame 204 are located within the filter chamber 101 and are in the working position. The second screening frame 202 is located within the first impurity chamber 102, and the third screening frame 203 is located within the second impurity chamber 103 and are in the standby position. When the wastewater conveying system is started, wastewater flows into the filter chamber 101 through the wastewater pipe 104 and undergoes coarse filtration from top to bottom through the first screening frame 201, intercepting large particulate impurities. The wastewater flows through the fourth screening frame 204 below for fine filtration, intercepting fine particulate impurities and achieving graded filtration. The filtered wastewater is discharged from the lower end of the filter chamber 101 and enters the subsequent treatment stage. When the impurities in the first screening frame 201 and the fourth screening frame 204 accumulate to a set amount or reach a set time, the motor 305 is started. The motor 305 drives the drive gear 302 on the outside of the first screening frame 201 to rotate. Through the first synchronous pulley 303 and the first synchronous belt 304, the drive gear 302 on the outside of the third screening frame 203 is driven to rotate synchronously. At the same time, the drive gear 302 of the first screening frame 201 meshes with the transmission gear 306. The transmission gear 306 drives the second screening frame 203 through the second synchronous pulley 307 and the second synchronous belt 308. The drive gear 302 of the screening frame 202 rotates, driving the drive gear 302 of the fourth screening frame 204 to rotate via the third synchronous pulley 309 and the third synchronous belt 310. The first screening frame 201 slides towards the first impurity chamber 102, the fourth screening frame 204 slides towards the second impurity chamber 103, the second screening frame 202 slides towards the filter chamber 101, and the third screening frame 203 slides towards the filter chamber 101. The first screening frame 201 releases the restriction on the filter grid 2042 through the inclined surface guiding force of the lower reset rod 206, dumping large particles of impurities intercepted on the surface into the first impurity chamber 102. During the sliding process of the fourth screening frame 204, the claw rod frame 2104 of the scraper 21 fixed above the fourth screening frame 204 moves through the side... The rod 2106 slides in the sliding cavity 22. The side rod 2106 slides from the transverse constant groove 2205 through the guide plate 2206 to the inclined sliding groove 2204. It enters the transverse scraping groove 2203 through the inclined sliding groove 2204, so that its claw rod frame 2104 cleans the filter grid 2042 of the third screening frame 203. When the fourth screening frame 204 slides to the limit position, the filter grid 2042 rotates towards the second impurity cavity 103, pouring fine particulate impurities into the second impurity cavity 103. The bottom elastic auxiliary rod 207 and the elastic main rod 208 in the second impurity cavity 103 have an elastic collision. The vibration is transmitted to the filter grid 2042, shaking off the small residual impurities stuck in the gaps of the rectangular mesh, ensuring that the fine filtration channel is transparent.At this time, the second screening frame 202 and the third screening frame 203 are fully inserted into the filter chamber 101 to perform filtration. Wastewater flows from top to bottom, with the second screening frame 202 intercepting new large particles of impurities and the third screening frame 203 intercepting new fine particles of impurities, continuing the graded filtration process to ensure stable effluent quality. When the impurities in the second screening frame 202 and the third screening frame 203 accumulate to a set amount or reach a set time, the motor 305 reverses, and the first screening frame 201 and the fourth screening frame 204 slide back into the filter chamber 101. At the same time, the claw rod frame 2104 of the scraper 21 fixed on the surface of the second screening frame 202 passes through the side... The rod 2106 slides in the sliding cavity 22. The side rod 2106 slides upward from the short slide groove 2201 through the guide plate 2206 to the inclined upper slide groove 2202. Through the inclined upper slide groove 2202, its claw rod frame 2104 cleans the filter grid 2042 of the first screening frame 201, scraping the impurities in the gaps of the filter grid 2042 of the first screening frame 201 into the first impurity cavity 102 through the arc-shaped recessed groove 2105. At this time, since the second screening frame 202 and the third screening frame 203 move in opposite directions, the claw rod frame 2104 of the scraping part 21 fixed on the surface of the third screening frame 203 slides upward through the side rod 2104. Rod 2106 slides in sliding cavity 22. Side rod 2106 slides upward from short slide groove 2201 through guide plate 2206 to inclined upper slide groove 2202. Through inclined upper slide groove 2202, its claw rod frame 2104 cleans the filter grid 2042 of the second screening frame 202. Impurities in the gaps of the filter grid 2042 of the second screening frame 202 are scraped off through arc-shaped recessed groove 2105 into the filter grid 2042 of the third screening frame 203. After the third screening frame 203 slides into the second impurity cavity 103, the filter grid 2042 rotates, causing impurities on its surface to fall into the second impurity cavity 103. Within the third screen, the scraper 21 on the surface of the second screen 202 cleans the gaps in the first screen 201; the scraper 21 on the surface of the third screen 203 cleans the gaps in the second screen 202; and the scraper 21 on the surface of the fourth screen 204 cleans the gaps in the third screen 203. The fourth screen 204, through a vibration-driven self-cleaning linkage structure, achieves an alternating filtration and self-cleaning cycle through the alternating forward and reverse rotation of the motor 305. This enables continuous automated wastewater treatment, effectively improving the linkage of the structure and reducing equipment manufacturing costs and energy consumption.

[0042] The above description discloses only a preferred embodiment of the integrated wastewater treatment device and wastewater treatment system of the present invention. Of course, it should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A sewage treatment integrated device, comprising a treatment box (1), characterized in that, the treatment box (1) is provided with a filtering mechanism, the filtering mechanism comprises four screening shelves (2) arranged in the treatment box (1), both sides of the four screening shelves (2) are provided with a connecting plate (205) which is slidingly connected with the treatment box (1), the connecting plate (205) on one side is fixedly provided with a driving mechanism (3) outside, the four screening shelves (2) are respectively a first screening shelf (201), a second screening shelf (202), a third screening shelf (203) and a fourth screening shelf (204), and the four screening shelves (2) are slidingly arranged in the treatment box (1) from top to bottom; the upper side of the second screening shelf (202) is provided with a scraping piece (21), the scraping piece (21) comprises a fixed frame (2101) fixedly arranged on the upper surface of the second screening shelf (202) on the right side, a T-shaped sliding frame (2102) is slidingly arranged in the fixed frame (2101), the upper surface of the T-shaped sliding frame (2102) is connected with a claw rod frame (2104) through a lifting plate (2103), and an arc-shaped recessed groove (2105) is formed in the outer side of the claw rod frame (2104); both sides of the lifting plate (2103) are provided with side rods (2106), and the inner side wall of the treatment box (1) is provided with a sliding cavity (22) in which the side rods (2106) slide, the sliding cavity (22) comprises a short sliding groove (2201), the short sliding groove (2201) is communicated with the end of a horizontal scraping groove (2203) through an inclined upper sliding groove (2202), the other end of the horizontal scraping groove (2203) is communicated with the middle part of a horizontal constant groove (2205) through an inclined lower sliding groove (2204), the end part of the horizontal constant groove (2205) is communicated with the intersection of the short sliding groove (2201) and the inclined upper sliding groove (2202), and a guide rotating plate (2206) is rotatably arranged at the intersection.

2. The sewage treatment integrated device according to claim 1, characterized in that, the screening shelf (2) comprises a sliding frame (2041) which is slidingly connected with the treatment box (1), a filter grid (2042) is rotatably arranged in the sliding frame (2041), the filter grid (2042) is provided with a rectangular mesh, the claw rod frame (2104) is matched with the rectangular mesh of the filter grid (2042), and the gap of the rectangular mesh of the filter grid (2042) of the first screening shelf (201) and the third screening shelf (203) is greater than that of the filter grid (2042) of the second screening shelf (202) and the fourth screening shelf (204).

3. The sewage treatment integrated device according to claim 2, characterized in that, The lower part of each of the four screening frames (2) is provided with a reset rod (206), the surface of the reset rod (206) is provided with an inclined surface, and the inclined surfaces of the reset rods (206) provided below the first screening frame (201) and the second screening frame (202) are in the same direction, and the inclined surfaces of the reset rods (206) provided below the third screening frame (203) and the fourth screening frame (204) are opposite to the inclined surfaces of the reset rods (206) provided below the first screening frame (201) and the second screening frame (202).

4. The integrated sewage treatment device according to claim 3, characterized in that, A plurality of partition plates (105) are arranged in the treatment box (1) to form a filter cavity (101) in the middle of the inner side, the right side of the filter cavity (101) is a first impurity cavity (102), the left side of the filter cavity (101) is a second impurity cavity (103), and a sewage pipe (104) is communicated with the upper part of the filter cavity (101), and a back plate (106) is fixedly arranged at the back of the treatment box (1).

5. The integrated sewage treatment device according to claim 4, characterized in that, The first screening frame (201) and the second screening frame (202) slide in the first impurity cavity (102) and the filter cavity (101), the third screening frame (203) and the fourth screening frame (204) slide in the second impurity cavity (103) and the filter cavity (101), the arc-shaped recessed groove (2105) of the claw rod frame (2104) arranged on the upper surface of the second screening frame (202) faces the first impurity cavity (102), the right side of the upper surface of the third screening frame (203) and the fourth screening frame (204) is provided with the scraping piece (21), and the arc-shaped recessed groove (2105) of the claw rod frame (2104) of the third screening frame (203) and the fourth screening frame (204) faces the second impurity cavity (103).

6. The integrated sewage treatment device according to claim 5, characterized in that, The sliding cavity (22) matched with the scraping piece (21) on the upper surface of the third screening frame (203) is reversely arranged with the sliding cavity (22) matched with the scraping piece (21) on the upper surface of the second screening frame (202), and the guide rotating plate (2206) is arranged at the intersection between the inclined downward sliding groove (2204) and the horizontal constant groove (2205) in the sliding cavity (22) matched with the scraping piece (21) on the upper surface of the fourth screening frame (204).

7. The integrated sewage treatment device according to claim 6, characterized in that, The bottom of the filter grid (2042) of the fourth screening frame (204) is fixedly provided with an elastic auxiliary rod (207), the second impurity cavity (103) is fixedly provided with an elastic main rod (208) matched with the elastic auxiliary rod (207), and the elastic auxiliary rod (207) and the reset rod (206) arranged below the fourth screening frame (204) do not interfere with each other.

8. The integrated sewage treatment device according to claim 7, characterized in that The driving mechanism (3) comprises four racks (301) fixedly connected with the four connecting plates (205), and a driving gear (302) is meshingly arranged below each of the four racks (301); the driving gears (302) outside the first screening frame (201) and the third screening frame (203) are connected through two first synchronous wheels (303) cooperating with a first synchronous belt (304); and the driving gear (302) outside the first screening frame (201) is provided with a motor (305).

9. The integrated sewage treatment device according to claim 8, characterized in that A transmission gear (306) is meshingly arranged below the driving gear (302) outside the first screening frame (201); the transmission gear (306) and the driving gear (302) outside the second screening frame (202) are connected through two second synchronous wheels (307) cooperating with a second synchronous belt (308); and the transmission gear (306) and the driving gear (302) outside the fourth screening frame (204) are connected through two third synchronous wheels (309) cooperating with a third synchronous belt (310).

10. A sewage treatment system characterised in that, The integrated sewage treatment device according to any one of claims 1-9.

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