A composite sewage integrated treatment equipment

Abstract

The present invention provides a composite sewage integrated treatment equipment, including a treatment body, the treatment body includes a sewage sedimentation tank, a solid-liquid separation device is arranged inside the sewage sedimentation tank, a filter screen is horizontally installed in the middle position inside the sewage sedimentation tank, the sewage sedimentation tank is divided into a high-density enrichment area and a low-density filtration area by the filter screen, and the high-density enrichment area is connected with a liquid inlet pipe; a driving shaft penetrating the filter screen is installed inside the sewage sedimentation tank, a negative pressure suction component located at the bottom of the high-density enrichment area is installed on the outer wall of the driving shaft, and a filtering device located in the low-density filtration area is installed on the outer wall of the driving shaft. The invention can avoid the concentrated accumulation of sludge to the greatest extent through the layered gradient treatment method, can continuously perform deep treatment on composite sewage, and improve the efficiency and effect of the overall treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a composite sewage integrated treatment device. Background Art

[0002] Integrated sewage treatment equipment usually includes a sewage sedimentation unit for settling suspended matter, sludge and other solid impurities in composite sewage, achieving solid-liquid separation to facilitate subsequent sewage treatment processes; some treatment equipment accelerates the sedimentation of solid impurities by adding flocculants and other sedimentation materials in the sewage sedimentation unit, thereby achieving better solid-liquid separation and improving the efficiency and effectiveness of sewage treatment.

[0003] However, the method of adding flocculants for sedimentation requires the preparation of a larger sedimentation chamber to settle the sewage, which makes it difficult to achieve continuous and uninterrupted treatment of the sewage and difficult to efficiently treat the continuously generated sewage.

[0004] In addition, some companies have added multi-layer filtering devices to filter solid impurities, which can achieve continuous and uninterrupted filtration of sewage within a certain period of time, thereby improving the efficiency of sewage treatment. However, the sedimentation chamber is usually large in size, and a single static filtering device cannot continuously and efficiently filter and treat sewage. In particular, as the filtration time increases, the solid impurities on the surface and front end of the filter device continue to increase, and the processing capacity and permeability of the filter device continue to decrease. After a period of filtration, the filter device needs to be removed and replaced, which also affects the efficiency and effect of sewage treatment. Summary of the invention

[0005] In view of the above problems, the present invention provides an integrated composite sewage treatment device, which can avoid the concentrated accumulation of sludge to the greatest extent through layered gradient treatment, can continuously perform deep treatment of composite sewage, and improve the overall treatment efficiency and effect.

[0006] To solve the above problems, the technical solution adopted by the present invention is:

[0007] A composite sewage integrated treatment device comprises a treatment body, wherein the treatment body comprises a sewage sedimentation tank, a solid-liquid separation device is arranged inside the sewage sedimentation tank, a filter screen cover is horizontally installed at the middle position inside the sewage sedimentation tank, the sewage sedimentation tank is divided into a high-density enrichment area and a low-density filtration area by the filter screen cover, and the high-density enrichment area is connected with a liquid inlet pipe; a driving shaft penetrating the filter screen cover is installed inside the sewage sedimentation tank, a negative pressure suction component located at the bottom of the high-density enrichment area is installed on the outer wall of the driving shaft, a filtering device located in the low-density filtration area is installed on the outer wall of the driving shaft, and a cleaning component is also fixed to the side wall of the driving shaft for cleaning the surface of the filter screen cover, wherein the filtering device filters and extracts the supernatant in the low-density filtration area during directional rotation.

[0008] Preferably, a driving device is installed at the upper end of the processing body for controlling the directional rotation of the driving shaft, the driving device includes a positioning bridge, the positioning bridge is rotatably connected to an upper positioning sleeve, the filtering device is installed between the upper positioning sleeve and the driving shaft, a negative pressure extraction pipe is installed at the upper end of the upper positioning sleeve, and the negative pressure extraction pipe is communicated with the filtering device.

[0009] Preferably, the filtering device includes a main conveying pipe with a built-in conveying channel, a filter plate is installed on the outside of the main conveying pipe, the filter plate is connected to the main conveying pipe through a branch conveying pipe, a docking chamber is formed inside the driving shaft, and the main conveying pipe slides between the docking chamber and the upper positioning sleeve.

[0010] Preferably, a scraping device is also installed on the inner wall of the low-density filtration area, and the scraping device includes a scraping positioning plate and a scraping component installed on the inner wall of the scraping positioning plate, and the scraping component is located on the moving path of the filter plate.

[0011] Preferably, the filtering devices are symmetrically arranged in two groups, and the main conveying pipelines of the two groups of filtering devices are both located and slidable between the docking chamber and the upper positioning sleeve.

[0012] Preferably, a first partition plate is fixed to the inner wall of the docking chamber, and a first docking chamber and a second docking chamber adapted to two main conveying pipes are respectively formed on both sides of the first partition plate, and jacking control components are respectively arranged inside the first docking chamber and the second docking chamber.

[0013] Preferably, a second partition plate and a third partition plate are fixed to the inner wall of the upper positioning sleeve, the second partition plate and the third partition plate are arranged at intervals, an adjustment opening is opened inside the second partition plate, a control valve body is rotatably connected to the inner wall of the adjustment opening, and the control valve body is connected to the negative pressure extraction pipeline to realize the extraction of the supernatant.

[0014] Preferably, a liquid inlet opening is formed on a first side of the control valve body, a locking protrusion is formed on a second side, and a locking groove matched with the locking protrusion is formed on a side wall of the main delivery pipe.

[0015] Preferably, the cleaning component is located in the high-density enrichment area and abuts against the lower end surface of the filter screen.

[0016] Preferably, the negative pressure suction component comprises a negative pressure suction end and a connecting sleeve connected to the negative pressure suction end, and the bottom of the connecting sleeve is connected to a pumping device through a pumping pipeline.

[0017] The beneficial effects of the present invention are:

[0018] Compared with the prior art, the above structural design can separate the interior of the sewage sedimentation tank into a low-density filtration area and a high-density enrichment area. The composite sewage can be filtered once through the filter cover to form a high-concentration high-density enrichment area and a low-concentration low-density filtration area, thereby reducing the load of the filtration device on sewage filtration. The filtration device continuously filters and extracts low-concentration sewage in the low-density filtration area, thereby achieving continuous and uninterrupted filtration treatment of sewage, meeting the requirements for continuous sewage treatment. At the same time, after the sewage concentration in the high-density enrichment area reaches the set threshold, the negative pressure suction component can discharge the mixed sewage containing high-concentration solid pollutants, thereby increasing the processing capacity of the high-density enrichment area while reducing the processing load of the filter cover, thereby further improving the efficiency of sewage treatment. In the process of continuous rotation of the driving shaft, the cleaning component can also be driven to continuously rotate to continuously clean the surface of the filter cover, thereby avoiding clogging of the filter cover to the greatest extent and achieving continuous treatment of the composite sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the top view structure.

[0021] Figure 3 For the present invention Figure 2 AA section view of the structure.

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at B.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of an upper positioning sleeve, a driving shaft and a filtering device in one embodiment of the present invention.

[0024] Figure 6 For the present invention Figure 5Schematic diagram of the top view structure.

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the CC cross-sectional structure.

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at D.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the filtering device of the present invention.

[0028] In the figure: 100, treatment body; 110, sewage sedimentation tank; 110-1, low-density filtration area; 110-2, high-density enrichment area; 111, liquid inlet pipeline; 112, filter screen; 120, treatment tank 1; 130, treatment tank 2; 200, drive device; 210, positioning bridge; 220, drive motor; 230, belt assembly; 300, filter device; 310, main conveying pipeline; 311, conveying channel; 312, sealing piston; 320, branch conveying pipeline; 330, filter plate; 400, drive shaft; 410, first partition plate; 410- 1. First docking chamber; 410-2. Second docking chamber; 500. Cleaning assembly; 600. Negative pressure suction assembly; 610. Connecting sleeve; 620. Negative pressure suction end; 700. Scraping device; 710. Scraping positioning plate; 711. Storage area; 720. Mounting frame; 730. Scraping assembly; 731. Telescopic end; 732. Scraping knife; 800. Upper positioning sleeve; 810. Sleeve housing; 820. Second partition plate; 830. Third partition plate; 840. Control valve body; 841. Liquid inlet opening; 842. Locking protrusion; 850. Negative pressure extraction pipeline. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Integrated sewage treatment equipment can efficiently purify composite sewage. It has the advantages of small footprint, low investment, and easy management. It is widely used to treat various domestic sewage and industrial sewage.

[0031] Integrated sewage treatment equipment usually includes a sewage sedimentation unit for settling suspended matter, sludge and other solid impurities in composite sewage, achieving solid-liquid separation to facilitate subsequent sewage treatment processes; some treatment equipment accelerates the sedimentation of solid impurities by adding flocculants and other sedimentation materials in the sewage sedimentation unit, thereby achieving better solid-liquid separation and improving the efficiency and effectiveness of sewage treatment.

[0032] However, the method of adding flocculants for sedimentation requires a relatively large sedimentation chamber to sediment the sewage, which makes it difficult to achieve continuous and uninterrupted treatment of the sewage and to efficiently treat the continuously generated sewage. In addition, some companies filter solid impurities by adding multi-layer filtering devices, which can achieve continuous and uninterrupted filtration of sewage within a certain period of time, thereby improving the efficiency of sewage treatment. However, the sedimentation chamber is usually large in size, and a single static filtering device cannot continuously and efficiently filter and treat the sewage, especially as the filtering time increases, the solid impurities on the surface and front end of the filtering device continue to increase, and the processing capacity and permeability of the filtering device continue to decrease. After a period of filtration, the filtering device needs to be removed and replaced, which also affects the efficiency and effect of sewage treatment.

[0033] In order to solve the above problems, refer to the attached Figure 1 -Attached Fig. 9 A composite sewage integrated treatment device includes a treatment body 100, which includes a sewage sedimentation tank 110. A solid-liquid separation device is arranged inside the sewage sedimentation tank 110. The solid-liquid separation device can separate solid pollutants and liquid pollutants, and the liquid pollutants and solid pollutants can be discharged separately to achieve separate deep treatment.

[0034] A filter screen cover 112 is horizontally installed in the middle position inside the sewage sedimentation tank 110. The sewage sedimentation tank 110 is divided into a high-density enrichment area 110-2 and a low-density filtration area 110-1 by the filter screen cover 112. The high-density enrichment area 110-2 is connected to the liquid inlet pipe 111; the liquid inlet pipe 111 can discharge the composite sewage containing solid pollutants into the high-density enrichment area 110-2. Under the action of the filter screen cover 112, most of the solid pollutants are retained in the high-density enrichment area 110-2 for enrichment, and a small number of small-sized solid pollutants and most of the liquid pollutants enter the low-density filtration area 110-1; here, the filtration size of the filter screen cover 112 is determined according to the size of the solid pollutants in the composite sewage to ensure that most of the solid pollutants are enriched in the high-density enrichment area 110-2.

[0035] In addition, a driving shaft 400 penetrating the filter screen 112 is installed inside the sewage sedimentation tank 110, and a negative pressure suction component 600 located at the bottom of the high-density enrichment area 110-2 is installed on the outer wall of the driving shaft 400. When too much solid pollutants accumulate in the high-density enrichment area 110-2, the negative pressure suction component 600 can discharge the pollutants; the outer wall of the driving shaft 400 is installed with a filter device 300 located in the low-density filter area 110-1, and the filter device 300 can separate a small part of the solid pollutants and liquid pollutants (sewage) in the low-density filter area 110-1, and further The composite sewage is filtered and treated to reduce the solid pollutants in the composite sewage to the greatest extent, which is convenient for the subsequent deep treatment of the sewage. A cleaning component 500 is also fixed to the side wall of the driving shaft 400 for cleaning the surface of the filter screen cover 112. The driving shaft 400 can drive the cleaning component 500 to rotate in a certain direction. During the directional rotation of the cleaning component 500, the surface of the filter screen cover 112 can be continuously cleaned to avoid clogging of the surface of the filter screen cover 112, thereby ensuring that the filter screen cover 112 can continue to perform preliminary filtration on the composite sewage, thereby extending the continuous treatment time of the sewage by the overall equipment and greatly reducing the frequency of sewage treatment.

[0036] Through the above-mentioned structural design, the filtering device 300 can filter and extract the supernatant in the low-density filtering area 110-1 during the directional rotation, and can filter the supernatant in depth to ensure that the extracted sewage can meet the needs of subsequent treatment; the negative pressure suction component 600 can clean the estimated solid pollutants in the high-density enrichment area 110-2 during the directional rotation, ensuring that there is enough space in the high-density enrichment area 110-2 to treat the composite sewage, avoiding the continuous enrichment of solid pollutants in the high-density enrichment area 110-2, avoiding the blockage of the entire equipment, and ensuring that the entire equipment can continuously treat the sewage; the cleaning component 500 here can continuously clean the surface of the filter screen cover 112 to avoid the accumulation of some solid pollutants on the surface of the filter screen cover 112 to cause blockage, and can drive the cleaning component 500 to rotate continuously during the continuous rotation of the driving shaft 400 to complete the continuous cleaning process.

[0037] In summary, through the above structural design, the interior of the sewage sedimentation tank 110 can be divided into a low-density filtration area 110-1 and a high-density enrichment area 110-2. The composite sewage can be filtered once through the filter cover 112 to form a high-concentration high-density enrichment area 110-2 and a low-concentration low-density filtration area 110-1, thereby reducing the load of the filtration device 300 on the sewage filtration. The filtration device 300 continuously filters and extracts low-concentration sewage in the low-density filtration area 110-1, thereby realizing continuous and uninterrupted filtration treatment of the sewage, satisfying the requirement of continuous sewage filtration. At the same time, after the sewage concentration in the high-density enrichment area 110-2 reaches the set threshold, the negative pressure suction component 600 can discharge the mixed sewage containing high-concentration solid pollutants, thereby increasing the treatment capacity of the high-density enrichment area 110-2 while reducing the load of the filter screen cover 112, further improving the efficiency of sewage treatment; in the process of continuous rotation of the driving shaft 400, it can also drive the cleaning component 500 to continuously rotate to continuously clean the surface of the filter screen cover 112, thereby avoiding clogging of the filter screen cover 112 to the greatest extent and realizing continuous treatment of composite sewage.

[0038] Specifically, a driving device 200 is installed at the upper end of the processing body 100 for controlling the directional rotation of the driving shaft 400. The driving device 200 includes a positioning bridge 210, and the positioning bridge 210 is rotatably connected to an upper positioning sleeve 800. The filtering device 300 is installed between the upper positioning sleeve 800 and the driving shaft 400. A negative pressure extraction pipe 850 is installed at the upper end of the upper positioning sleeve 800. The negative pressure extraction pipe 850 is sealed and rotatably connected to the upper positioning sleeve 800. The negative pressure extraction pipe 850 is connected to the filtering device 300. The driving device 200 can drive the upper positioning sleeve 800, the filtering device 300 and the driving shaft 400 to rotate continuously, and can control the continuous operation of the entire system; the negative pressure extraction pipe 850 can extract the sewage around the filtering device 300 by means of negative pressure. The filter pore size on the surface of the filtering device 300 is small, and most of the solid pollutants can be filtered, thereby ensuring the clarity of the sewage extracted from the negative pressure extraction pipe 850.

[0039] The driving device 200 here can be selected as a combination of a driving motor 220 and a belt assembly 230, and the power is transmitted through the belt assembly 230 to control the upper positioning sleeve 800, the filtering device 300, and the driving shaft 400 to rotate continuously as a whole.

[0040] Refer to the attached Figure 1It can be seen that the composite sewage enters from the liquid inlet pipe 111 and is finally discharged from the negative pressure extraction pipe 850 at the top of the upper positioning sleeve 800. The solid pollutant content in the sewage discharged from the negative pressure extraction pipe 850 is extremely low. This part of the sewage enters the subsequent treatment tank 1 120 and the treatment tank 2 130 for subsequent deep treatment to meet the needs of sewage discharge; the subsequent sewage treatment plan can select different existing treatment plans according to the nature of the sewage, which will not be repeated here.

[0041] Please refer to the attached Fig. 9 Specifically, the filtering device 300 includes a main conveying pipe 310 with a built-in conveying channel 311, and a filter plate 330 is installed on the outside of the main conveying pipe 310. The filter plate 330 is connected to the main conveying pipe 310 through a branch conveying pipe 320. The pressure in the built-in conveying channel 311 is lower than that on the outside. The sewage on the outside can be filtered through the filter plate 330. The filtered sewage can be continuously pumped into the main conveying pipe 310 through the branch conveying pipe 320 and finally discharged from the top negative pressure extraction pipe 850, thereby realizing continuous extraction and filtration of sewage.

[0042] Through the above structural design, the sewage on the outside can be continuously extracted during the continuous rotation of the filter plate 330, and the composite sewage can be disturbed at the same time, so that the sewage at different horizontal positions can be efficiently extracted.

[0043] It should be noted here that the outer surface of the filter plate 330 has filter holes, solid pollutants cannot pass through the filter holes and remain on the outside, but liquid can pass through the filter holes to achieve re-filtration and purification of the composite sewage; the filtering specifications of the filter plate 330 can be selected according to the type of sewage, and the filter plate 330 here can also be selected as a ceramic filter plate to filter some fine-sized solid pollutants.

[0044] A docking chamber is formed inside the driving shaft 400, and the main delivery pipe 310 slides between the docking chamber and the upper positioning sleeve 800. By controlling the main delivery pipe 310 to slide between the two, the filter plate 330 can be controlled to be at different height positions. When the surface of the filter plate 330 is in a completely blocked state, the filter plate 330 is controlled to be at a higher position (above the sewage liquid surface) to achieve cleaning of the surface of the filter plate 330; after cleaning, the filter plate 330 is controlled to descend to a predetermined height to achieve continued filtering and extraction of sewage.

[0045] At the same time, through the above structural design, the filter plate 330 can be controlled to be at different heights to match the liquid level of the sewage. When the sewage treatment volume is small, the filter plate 330 is controlled to be at the lowest point to achieve continuous purification of the sewage.

[0046] Please refer to the attached Figure 4In order to realize automatic cleaning of the surface of the filter plate 330 and improve the overall automation efficiency; a scraping device 700 is also installed on the inner wall of the low-density filtration area 110-1, and the scraping device 700 includes a scraping positioning plate 710 and a scraping component 730 installed on the inner wall of the scraping positioning plate 710. The scraping component 730 is located on the moving path of the filter plate 330. The scraping component 730 can be against the surface of the filter plate 330 to scrape the solid pollutants on the outer surface of the filter plate 330, thereby ensuring the cleanliness of the surface of the filter plate 330 and realizing continuous filtration of sewage; the scraping component 730 here can select a combination of a telescopic end 731 and a scraping knife 732. The telescopic end 731 can control the scraping knife 732 to extend, and each time the scraping knife 732 is controlled to extend a predetermined distance, so as to realize step-by-step scraping of the surface of the filter plate 330, thereby improving the scraping and cleaning effect of the surface of the filter plate 330.

[0047] It should be noted here that a storage area 711 with a bent design is installed at the lower end of the scraping and positioning plate 710, which can centrally collect the scraped and dropped solid pollutants. The storage area 711 is a through-opening design. When the position of the filter plate 330 is constant, it will not interfere with the storage area 711 and will not affect the rotation of the filter plate 330.

[0048] When the solid pollutants on the surface of the corresponding filter plate 330 need to be cleaned, the filter plate 330 is controlled to rotate to the side away from the storage area 711 and stop rotating. After it is lifted to a predetermined height, it is rotated in a directional manner to achieve centralized scraping of the solid pollutants on the surface. Similarly, when the corresponding filter plate 330 needs to be lowered to a predetermined position to perform negative pressure extraction of sewage, the filter plate 330 is controlled to rotate to the side away from the storage area 711, and then moved to the bottom position, thereby completing the up and down movement and displacement operation of the filter plate 330.

[0049] The process of controlling the up and down movement and rotation of the filter plate 330 requires the coordinated control of the driving device 200 and the lifting control component in the docking chamber. After the driving device 200 controls the corresponding filter plate 330 to rotate to the side away from the storage area 711, the lifting control component controls the filter plate 330 to be lifted to a predetermined height position, that is, opposite to the scraping component 730. The bottom of the filter plate 330 is located above the storage area 711, and the two will not interfere with each other.

[0050] It should be noted here that the cycle of sewage treatment by the filter plate 330 is relatively long, and the frequency of its lifting control is low, so there is no need to frequently stop the machine for lifting control; and, the scraping assembly 730 has a large vertical span, and the lifting accuracy control requirements for the filter plate 330 are low. Technical personnel in this field can adaptively select the lifting and rotation control method as needed.

[0051] In order to achieve continuous filtering and extraction of sewage, the filtering devices 300 are preferably symmetrically arranged in two groups, and the main conveying pipes 310 of the two groups of filtering devices 300 are both located between the docking chamber and the upper positioning sleeve 800 and slide. By setting up two groups of filtering devices 300, sewage can be continuously filtered and extracted. At the same time, the remaining group of filtering devices 300 can be at the scraping device 700 on the top to clean the surface of the filter plate 330 during continuous rotation; the two groups of filtering devices 300 are alternately operated to achieve continuous filtering and extraction of sewage, thereby further improving the efficiency of sewage filtration and extraction.

[0052] It should be noted that the cross-section of the main delivery pipe 310 here can be selected to be circular, square or semicircular; technical personnel in this field can select a suitable shape according to specific needs, and no matter what cross-section of the main delivery pipe 310 is selected, it is within the protection scope of this application; when the filtering device 300 is selected as two groups, the cross-section of the main delivery pipe 310 here can be selected to be semicircular to avoid space waste and achieve efficient extraction of sewage.

[0053] Similarly, the filter plate 330 here can be selected to be arc-shaped, plate-shaped or ring-shaped; when the filter device 300 is selected as two groups, the filter plate 330 here can be selected to be semicircular, and the two filter plates 330 are combined and located on the same virtual circle, which can filter and extract sewage to the greatest extent. At the same time, the semicircular filter plate 330 has low resistance during rotation, which reduces the energy consumption of extracting sewage and ensures the stability of the overall structure.

[0054] Please refer to the attached Figure 7 In order to realize the lifting and lowering control of the two groups of filtering devices 300, a first partition plate 410 is fixed on the inner wall of the docking chamber, and a first docking chamber 410-1 and a second docking chamber 410-2 adapted to the two main conveying pipes 310 are formed on both sides of the first partition plate 410, and a lifting control component is respectively arranged inside the first docking chamber 410-1 and the second docking chamber 410-2. An electric-controlled telescopic rod can be installed in the two docking chambers to control the overall lifting of the filtering device 300. Similarly, the control oil is pumped into the two docking chambers to lift the overall height.

[0055] A sealing piston 312 is installed at the lower end of the main conveying pipe 310. The sealing piston 312 is sealingly and slidingly connected to the corresponding docking chamber, which can prevent sewage from entering the docking chamber to the greatest extent, ensure the normal operation of the overall structure, and ensure stable lifting control of the filtering device 300.

[0056] A second partition plate 820 and a third partition plate 830 are fixed on the inner wall of the upper positioning sleeve 800, and the second partition plate 820 and the third partition plate 830 are arranged at intervals. An adjusting opening is opened inside the second partition plate 820, and a control valve body 840 is rotatably connected to the inner wall of the adjusting opening. The control valve body 840 is connected to the negative pressure extraction pipe 850 to realize the extraction of the supernatant. The second partition plate 820 is located above the third partition plate 830. Through the above-mentioned structural design, the main conveying pipe 310 is controlled to be lifted to the inside of the second partition plate 820, and a sealing barrier can be formed between the main conveying pipe 310 and the inner wall of the second partition plate 820 to prevent the negative pressure extraction pipe 850 from affecting the main conveying pipe 310; at this time, the main conveying pipe 310 is in a lifted and clean state.

[0057] The second partition plate 820 and the third partition plate 830 can also be selected to be a continuous body, which can further enhance the sealing effect on the main conveying pipes 310 on both sides.

[0058] Moreover, during this process, the control valve body 840 is driven to rotate to the other side, so that the sewage in the main conveying pipe 310 on the other side can be negatively extracted. Through the above-mentioned structural design, the continuous negative pressure extraction control of the two groups of filtering devices 300 can be met. At the same time, the main conveying pipe 310 in the jacking state can be in a separated state to avoid affecting the negative pressure extraction process.

[0059] It should be noted here that after the main conveying pipe 310 is lifted, a sealed barrier can be formed between the second partition plate 820 and the main conveying pipe 310 to prevent the vacuum from affecting the main conveying pipe 310 in the lifted state; the third partition plate 830 here can guide the main conveying pipe 310 on the one hand, and at the same time form a sealed barrier with the main conveying pipe 310 to prevent the sewage extracted by negative pressure from flowing out from there, thereby ensuring the normal negative pressure extraction of sewage.

[0060] Specifically, a liquid inlet opening 841 is opened on the first side of the control valve body 840, and a locking protrusion 842 is formed on the second side. A locking groove matched with the locking protrusion 842 is opened on the outer wall of the main conveying pipe 310. The position of the driving control valve body 840 is controlled so that the liquid inlet opening 841 can be on the first side, and the sewage in the main conveying pipe 310 in the contracted position can be negatively extracted under negative pressure; at the same time, the locking protrusion 842 on the outside can press the main conveying pipe 310 tightly to ensure the stability of the main conveying pipe 310 in the jacking state, and prevent its decline from affecting the negative pressure extraction of sewage and the normal scraping and cleaning of the outer filter plate 330.

[0061] Attach Figure 8As an example, it should be noted that, assuming that the horizontal direction is the X-axis, the vertical direction is the Y-axis, and the direction perpendicular to the plane is the Z-axis; the control valve body 840 here rotates around the Z-axis, and a hollow rotating connection component parallel to the Z-axis is installed on the outside of the control valve body 840 (see Appendix Figure 8 The circle in the middle of the control valve body 840), the rotating connection assembly here is divided into two sections, including a rotating connection member 1 fixedly connected to the control valve body 840 and a rotating connection member 2 that is sealingly rotatably connected to the rotating connection member 1, the inner side of the rotating connection member 2 is connected to the rotating connection member 1, and the outer side of the rotating connection member 2 is connected to the negative pressure extraction pipeline 850 to realize the negative pressure extraction of sewage; the rotating connection member 1 and the rotating connection member 2 here are both tubular.

[0062] A control motor is installed on the outside of the rotating connecting member 1, and the control motor controls the directional rotation of the control valve body 840 through a gear transmission member, so that the control valve body 840 can realize negative pressure extraction of sewage while rotating.

[0063] Specifically, the cleaning component 500 is located in the high-density enrichment area 110-2 and is against the lower end surface of the filter screen cover 112. During the rotation of the driving shaft 400, the cleaning component 500 can be driven to rotate synchronously to achieve continuous cleaning of the surface of the filter screen cover 112. The cleaning component 500 here can select a traditional cleaning rod, and can also be combined with existing vibration elements and air blowing elements to improve the cleaning effect of the surface of the filter screen cover 112.

[0064] Specifically, the negative pressure suction component 600 includes a negative pressure suction terminal 620 and a connecting sleeve 610 connected to the negative pressure suction terminal 620. The bottom of the connecting sleeve 610 is connected to the pumping equipment through a pumping pipe. When the driving shaft 400 drives the negative pressure suction component 600 to rotate continuously, the negative pressure suction terminal 620 can continuously extract the solid pollutants accumulated in the high-density enrichment area 110-2 under negative pressure, thereby avoiding the continuous accumulation of solid pollutants; the solid pollutants can be continuously discharged through the pumping pipe at the bottom, thereby realizing the continuous transportation of solid pollutants.

[0065] A monitoring device can be installed in the high-density enrichment area 110-2 to monitor the state of solid pollutant accumulation in the high-density enrichment area 110-2. When the height of the solid pollutant accumulation exceeds a threshold, the negative pressure suction component 600 is controlled to start negative pressure extraction, so as to continuously clean the solid pollutants from the bottom. A clutch can be installed between the negative pressure suction terminal 620 and the drive shaft 400. When solid pollutants are accumulated, the drive shaft 400 and the negative pressure suction terminal 620 are controlled to be in a state of no power transmission to avoid disturbing the sludge.

[0066] The present invention is further described below in conjunction with the processing method.

[0067] S1. The composite sewage containing solid pollutants is discharged into the high-density enrichment area 110-2 through the liquid inlet pipe 111. Most of the solid pollutants cannot pass through the filter cover 112 and accumulate in the high-density enrichment area 110-2; a large amount of liquid pollutants and a small part of solid pollutants pass through the filter cover 112 and enter the low-density filtration area 110-1.

[0068] S2. When the sewage in the low-density filtration area 110-1 reaches a certain height, the filtration device 300 is controlled to filter and extract the sewage. Most of the residual solid pollutants remain on the surface of the filtration device 300, and the liquid pollutants can pass through the filtration device 300 and be finally extracted. The extracted sewage can enter the treatment tank 1 120 and the treatment tank 2 130 for further treatment.

[0069] S3. After the solid pollutants accumulate to a certain height in the high-density enrichment area 110-2, the negative pressure suction assembly 600 is controlled to rotate continuously to continuously extract the accumulated sludge to ensure the capacity and efficiency of sewage treatment in the high-density enrichment area 110-2.

[0070] At the same time, while the driving shaft 400 is continuously rotating, the cleaning assembly 500 can continuously clean the surface of the filter screen cover 112 to prevent the continuous accumulation of solid pollutants and ensure that the sewage can normally pass through the filter screen cover 112 and enter the low-density filter area 110-1.

[0071] Through the above structural design, the concentrated accumulation of sludge can be avoided to the greatest extent through layered gradient treatment, and the composite sewage can be deeply treated continuously, thereby improving the overall treatment efficiency and effect.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite sewage integrated treatment device, comprising a treatment body (100), wherein the treatment body (100) comprises a sewage sedimentation tank (110), wherein a solid-liquid separation device is arranged inside the sewage sedimentation tank (110), and wherein: A filter screen (112) is horizontally installed in the middle of the sewage sedimentation tank (110), and the sewage sedimentation tank (110) is divided into a high-density enrichment area (110-2) and a low-density filtration area (110-1) by the filter screen (112), and the high-density enrichment area (110-2) is connected to a liquid inlet pipe (111); A driving shaft (400) penetrating the filter screen (112) is installed inside the sewage sedimentation tank (110); a negative pressure suction assembly (600) located at the bottom of the high-density enrichment area (110-2) is installed on the outer wall of the driving shaft (400); a filtering device (300) located in the low-density filtering area (110-1) is installed on the outer wall of the driving shaft (400); a cleaning assembly (500) is also fixed to the side wall of the driving shaft (400) for cleaning the surface of the filter screen (112); wherein the filtering device (300) filters and extracts the supernatant in the low-density filtering area (110-1) during directional rotation; A driving device (200) is installed at the upper end of the processing body (100) for controlling the directional rotation of the driving shaft (400); the driving device (200) comprises a positioning bridge (210); the positioning bridge (210) is rotatably connected to an upper positioning sleeve (800); the filtering device (300) is installed between the upper positioning sleeve (800) and the driving shaft (400); a negative pressure extraction pipeline (850) is installed at the upper end of the upper positioning sleeve (800); the negative pressure extraction pipeline (850) is in communication with the filtering device (300); The filtering device (300) comprises a main conveying pipe (310) having a built-in conveying channel (311); a filter plate (330) is installed outside the main conveying pipe (310); the filter plate (330) is connected to the main conveying pipe (310) via a branch conveying pipe (320); a docking chamber is formed inside the driving shaft (400); the main conveying pipe (310) is slidably located between the docking chamber and the upper positioning sleeve (800); The filtering devices (300) are symmetrically arranged in two groups, and the main conveying pipes (310) of the two groups of filtering devices (300) are both located and slidable between the docking chamber and the upper positioning sleeve (800); A first partition plate (410) is fixed to the inner wall of the docking chamber, a first docking chamber (410-1) and a second docking chamber (410-2) adapted to the two main delivery pipes (310) are formed on both sides of the first docking chamber (410), and a lifting control component is respectively arranged inside the first docking chamber (410-1) and the second docking chamber (410-2); A second partition plate (820) and a third partition plate (830) are fixed to the inner wall of the upper positioning sleeve (800), the second partition plate (820) and the third partition plate (830) are arranged at intervals, an adjustment opening is opened inside the second partition plate (820), a control valve body (840) is rotatably connected to the inner wall of the adjustment opening, and the control valve body (840) is connected to the negative pressure extraction pipeline (850) to realize the extraction of supernatant; The control valve body (840) has a liquid inlet opening (841) on a first side, a locking protrusion (842) on a second side, and a locking groove matching the locking protrusion (842) on a side wall of the main delivery pipe (310).

2. The integrated composite sewage treatment equipment according to claim 1, characterized in that: A scraping device (700) is also installed on the inner wall of the low-density filtering area (110-1), and the scraping device (700) comprises a scraping positioning plate (710) and a scraping component (730) installed on the inner wall of the scraping positioning plate (710), and the scraping component (730) is located on the moving path of the filtering plate (330).

3. The integrated composite sewage treatment equipment according to claim 1, characterized in that: The cleaning component (500) is located in the high-density enrichment area (110-2) and abuts against the lower end surface of the filter screen cover (112).

4. The integrated composite sewage treatment equipment according to claim 1, characterized in that: The negative pressure suction component (600) comprises a negative pressure suction end (620) and a connecting sleeve (610) connected to the negative pressure suction end (620), and the bottom of the connecting sleeve (610) is connected to a pumping device via a pumping pipeline.

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