Moisture-proof corrugated paper production wastewater treatment process

Abstract

The present application relates to corrugated paper production wastewater treatment technical field, disclose a kind of moisture-proof corrugated paper production wastewater treatment process, wherein moisture-proof corrugated paper production wastewater treatment process, including the following steps: S1: pretreatment stage, by grid cleaner intercepting large particle impurities in wastewater, paper dust and fiber, grid cleaner has flushing mechanism and solid sludge collection mechanism;S2: coagulation sedimentation stage, by adding coagulant in filtered wastewater, wastewater occurs deposition, upper wastewater output.The moisture-proof corrugated paper production wastewater treatment process, after waste residue is filtered by wastewater through filter cartridge, scraper is used to scrape off the dirt on the inner wall of rotating filter cartridge, circulating pump is used to pump out the wastewater that has filtered waste residue, filter cartridge outer wall is washed using filtered wastewater, improve the filtering efficiency of filter cartridge, realize water source recycling, avoid filter cartridge to be blocked, improve the smoothness of corrugated paper processing wastewater treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to corrugated paper production wastewater treatment technical field, especially to a kind of moisture-proof corrugated paper production wastewater treatment process. BACKGROUND

[0002] Corrugated board is a multilayer adhesive body, which is composed of at least one corrugated core paper interlayer and one paperboard. With the development of society, people have higher and higher requirements for the functions of corrugated paper, such as the anti-slip performance, waterproof and moisture-proof performance, structural strength, and anti-odor function of corrugated paper. In the production process of moisture-proof corrugated paper, there are processes such as preparation of fiber slurry, paste paperboard, corrugated paper core preparation, corrugated paper board forming, corrugated paper wastewater treatment, and corrugated paper cutting, embossing or coating.

[0003] Corrugated paper production wastewater treatment process is an essential procedure in the production process of corrugated paper, which aims to reduce the content of pollutants in wastewater to meet the discharge standards or reuse requirements. In the process of corrugated paper wastewater treatment, due to the high content of suspended solids and organic matter in wastewater, the sewage treatment equipment cannot clean the sewage in time, which leads to the blockage of the sewage treatment process and affects the efficiency of corrugated paper production wastewater treatment. Therefore, we improve it and propose a moisture-proof corrugated paper production wastewater treatment process. SUMMARY

[0004] In view of the above problems that the existing corrugated paper wastewater treatment process is prone to blockage and affects the efficiency of corrugated paper wastewater treatment, the present application is proposed.

[0005] Therefore, the purpose of the present application is to provide a moisture-proof corrugated paper production wastewater treatment process, which aims to: after the wastewater is filtered by the filter cartridge, the scraper is used to scrape off the dirt on the inner wall of the rotating filter cartridge, the circulating pump is used to pump out the wastewater that has been filtered, the filter cartridge outer wall is washed with filtered wastewater, the filtering efficiency of the filter cartridge is improved, the water source is recycled, the filter cartridge is prevented from being blocked, and the smoothness of corrugated paper processing wastewater treatment is improved.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a moisture-proof corrugated paper production wastewater treatment process, comprising the following steps:

[0007] S1: pretreatment stage, large particle impurities, paper scraps and fibers in wastewater are intercepted by a grid cleaner, the grid cleaner has a washing mechanism and a solid sludge collection mechanism;

[0008] S2: coagulation and sedimentation stage, a coagulant is added to the filtered wastewater, the wastewater is precipitated, and the upper wastewater is output;

[0009] S3: biochemical treatment stage, by sending the wastewater output from the upper layer into a biochemical treatment system, through anaerobic reactor and aerobic aeration tank treatment;

[0010] S4: using COD meter and BOD meter to determine whether the sewage treatment meets the standard.

[0011] As a preferred scheme of the moisture-proof corrugated paper production sewage treatment process, the pretreatment stage comprises a wastewater tank, a waste material filtering assembly is arranged in the wastewater tank, a conveying pipe is arranged on one side of the waste material filtering assembly, collecting assemblies are arranged on both sides of the wastewater tank, the conveying pipe conveys materials to the collecting assemblies on both sides through guide pipes, a water pressing assembly is arranged on the top of the wastewater tank, the water pressing assembly comprises a pressing plate, the pressing plate is used for pressing water of the collecting assemblies, the waste material filtering assembly comprises a filter cartridge, a cleaning assembly and a shower pipe are arranged on the top of the filter cartridge, and a scraper is arranged on the inner side of the filter cartridge.

[0012] As a preferred scheme of the moisture-proof corrugated paper production sewage treatment process, one end of the filter cartridge is provided with a first square plate, the other end is provided with a second square plate, the first square plate and the second square plate are movably connected with the end of the filter cartridge through bearing sleeves respectively, the both ends of the scraper are connected with the first square plate and the second square plate respectively, the scraper is attached to the inner wall of the filter cartridge, the side walls of the first square plate and the second square plate are attached to the inner wall of the wastewater tank, the axis of the filter cartridge is inclined upward, and the second square plate is located at an obliquely upper position of the first square plate.

[0013] As a preferred scheme of the moisture-proof corrugated paper production sewage treatment process, a guide plate is arranged in the wastewater tank, the bottom of the first square plate is fixed to the inner wall of the bottom of the wastewater tank, the guide plate is close to the side from which the wastewater flows out, a circulating pump is arranged above the wastewater tank, a guide opening is arranged on the top of the guide plate, the bottom of the guide plate is connected with the circulating pump, the other end of the circulating pump is connected with the shower pipe, the both ends of the shower pipe are connected with the first square plate and the second square plate respectively, and a plurality of shower openings facing the scraper are arranged on the shower pipe.

[0014] As a preferred scheme of the moisture-proof corrugated paper production wastewater treatment process, the spiral conveying rod is movably arranged in the conveying pipe, the receiving hopper is connected to one end of the conveying pipe close to the filter cartridge, one end of the spiral conveying rod penetrates through the receiving hopper, the connecting column is arranged on one side of the receiving hopper close to the first square plate, the connecting column is arranged at the bottom of the wastewater tank, the connecting column is movably connected to the top of the spiral conveying rod, the discharging pipe is connected to the bottom of the end of the conveying pipe away from the receiving hopper, the driving box is arranged on the end of the conveying pipe close to the discharging pipe, the receiving hopper is arranged below the cleaning assembly, the flushing pipe and the scraper, the support frame is arranged at the top of the wastewater tank, and the conveying pipe is arranged at the top of the support frame.

[0015] As a preferred scheme of the moisture-proof corrugated paper production wastewater treatment process, the collecting assembly comprises a positioning seat, the positioning seat is arranged on the outer side wall of the wastewater tank, the top of the positioning seat and the side away from the wastewater tank are open ends, the bottom of the positioning seat is provided with a water filtering disc, a water drainage cavity is formed between the bottom of the water filtering disc and the inner wall of the positioning seat, the water drainage cavity is connected with a water outlet pipe, the water outlet pipe penetrates out of the positioning seat, a garbage basket is arranged in the positioning seat, the top of the garbage basket is an open end, the four adjacent sides of the garbage basket are embedded with water filtering nets, respectively, a material guiding pipe is arranged at the bottom of the discharging pipe, the material guiding pipe is a U-shaped structure with an opening downward, and the two output ports of the material guiding pipe are arranged above the positioning seat.

[0016] As a preferred scheme of the moisture-proof corrugated paper production wastewater treatment process, the driving box is movably arranged with two intermeshing tooth plates, the motor is arranged outside the driving box, the output shaft of the motor is connected with one of the tooth plates, the other tooth plate is connected with the end of the spiral conveying rod in a concentric manner, the second bevel gear is movably arranged outside the driving box, the second bevel gear is connected with one of the driving boxes in a concentric manner, the fixed plate is arranged at the top of the wastewater tank, the second reciprocating screw rod is arranged at the center position of the fixed plate, the first bevel gear is arranged at the top of the second reciprocating screw rod in a concentric manner, the first bevel gear is engaged with the second bevel gear, the lifting seat is arranged outside the second reciprocating screw rod, the lifting frames are arranged at the two ends of the lifting seat, respectively, the lifting frames are in an L-shaped structure, the vertical part of the lifting frame is arranged above the positioning seat, the pressing plate is connected to the bottom end of the vertical part of the lifting frame, the vertical part of the lifting frame is provided with a sliding groove, and the two ends of the fixed plate penetrate into the two sliding grooves, respectively.

[0017] As a preferred scheme of the moisture-proof corrugated paper production wastewater treatment process, the two end sidewalls of the filter cylinder are respectively provided with a clamping tooth group, the cleaning assembly comprises a worm screw symmetrically arranged at the two ends of the filter cylinder, the end of the worm screw is connected with a gear sleeve in a concentric mode, the gear sleeve is in meshing cooperation with the corresponding clamping tooth group, the end of the worm screw is movably connected with the first square plate or the second square plate, one end of the filter cylinder is provided with a second connecting sleeve in a concentric mode, the second connecting sleeve is fixedly sleeved outside the shaft of the spiral material conveying rod, and the other end of the filter cylinder is provided with a first connecting sleeve in a concentric mode.

[0018] As a preferred scheme of the moisture-proof corrugated paper production wastewater treatment process, the two end sidewalls of the filter cylinder are respectively provided with a clamping tooth group, the cleaning assembly comprises a worm screw symmetrically arranged at the two ends of the filter cylinder, the end of the worm screw is connected with a gear sleeve in a concentric mode, the gear sleeve is in meshing cooperation with the corresponding clamping tooth group, the end of the worm screw is movably connected with the first square plate or the second square plate, one end of the filter cylinder is provided with a second connecting sleeve in a concentric mode, the second connecting sleeve is fixedly sleeved outside the shaft of the spiral material conveying rod, and the other end of the filter cylinder is provided with a first connecting sleeve in a concentric mode, one end of the filter cylinder is provided with a second connecting sleeve in a concentric mode, the second connecting sleeve is fixedly sleeved outside the shaft of the spiral material conveying rod, and the other end of the filter cylinder is provided with a first connecting sleeve in a concentric mode.

[0019] The moisture-proof corrugated paper production wastewater treatment process has the following beneficial effects:

[0020] 1、The waste water passes through the filter cylinder to filter the waste residue, the scraper is used for scraping off the dirt on the inner wall of the rotating filter cylinder, and the circulating pump is used for pumping out the waste water that has filtered the waste residue, so that the filter cylinder is washed by the filtered waste water, the filtering efficiency of the filter cylinder is improved, the water source is recycled, the filter cylinder is prevented from being blocked, and the smoothness of corrugated paper processing wastewater treatment is improved.

[0021] 2、The residue on the inner wall of the filter cylinder passes below the cleaning brush in the rotating process, part of the residue is poked off by the bristles of the cleaning brush, part of the residue is scraped off by the scraper, meanwhile, the circulating pump recycles the filtered waste water at the guide plate and rinses it to the outside of the filter cylinder through the rinsing pipe, so that the outer wall of the filter cylinder has water power impacting the inner wall, on the other hand, the water rinses the impurities outside the scraper, so that the blockage of the filter cylinder can be reduced.

[0022] 3、The rotation of the spiral material conveying rod makes the second bevel gear mesh with the first bevel gear, and the pressing plate moves up and down above the filter screen, so as to accelerate the filtering of the waste residue in the filter screen and facilitate the recovery of the solid residue in the waste water. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings. Among them:

[0024] Figure 1 The structural schematic view of the pre-preprocessing structure of the grid cleaner of the moisture-proof corrugated paper production wastewater treatment process.

[0025] Figure 2 The structural schematic view of the collecting assembly and the water pressing assembly of the moisture-proof corrugated paper production wastewater treatment process.

[0026] Figure 3 The structural schematic view of the water pressing assembly of the moisture-proof corrugated paper production wastewater treatment process.

[0027] Figure 4 The sectional structural schematic view of the waste filtering assembly of the moisture-proof corrugated paper production wastewater treatment process.

[0028] Figure 5 The structural schematic view of the conveying pipe of the moisture-proof corrugated paper production wastewater treatment process.

[0029] Figure 6 The installation structural schematic view of the first square plate and the second square plate of the moisture-proof corrugated paper production wastewater treatment process.

[0030] Figure 7 The structural schematic view of the waste filtering assembly of the moisture-proof corrugated paper production wastewater treatment process.

[0031] Figure 8 The structural schematic view of the cleaning assembly of the moisture-proof corrugated paper production wastewater treatment process.

[0032] Figure 9 The structural schematic view of the cleaning brush and the limiting seat of the moisture-proof corrugated paper production wastewater treatment process.

[0033] Explanation of reference signs:

[0034] 1, wastewater tank; 11, guide plate; 111, flow guide opening; 12, support frame; 13, circulating pump;

[0035] 2, waste filtering assembly; 21, filter cartridge; 211, catch tooth group; 212, first connecting sleeve; 213, second connecting sleeve; 22, cleaning assembly; 221, cleaning brush; 222, moving seat; 223, limiting seat; 224, through hole; 225, first reciprocating screw rod; 226, worm gear sleeve; 227, worm; 228, gear sleeve; 23, first square plate; 24, flushing pipe; 25, scraper; 26, second square plate;

[0036] 3, conveying pipe; 31, discharge pipe; 32, material guide pipe; 33, receiving hopper; 34, spiral conveying rod; 35, connecting column; 36, driving box; 37, toothed disc; 38, motor;

[0037] 4, collecting assembly; 41, positioning seat; 42, garbage basket; 421, water filtering net; 43, water outlet pipe; 44, water filtering disc;

[0038] 5, water pressing assembly; 51, lifting frame; 511, chute; 52, fixed plate; 53, pressing plate; 54, second reciprocating screw rod; 55, lifting seat; 56, first bevel gear; 57, second bevel gear. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. EMBODIMENT

[0040] REFERENCE Figures 1-9 For the first embodiment of the present application, a moisture-proof corrugated paper production wastewater treatment process is provided, which comprises the following steps:

[0041] S1: pretreatment stage, large particle impurities, paper scraps and fibers in the wastewater are intercepted by a grid cleaner, the grid cleaner has a flushing mechanism and a solid sludge collecting mechanism;

[0042] S2: coagulation and sedimentation stage, a coagulant is added to the filtered wastewater, the wastewater is precipitated, and the upper wastewater is output;

[0043] S3: biochemical treatment stage, the output upper wastewater is sent to a biochemical treatment system for treatment by an anaerobic reactor and an aerobic aeration tank;

[0044] S4: using a COD meter and a BOD meter to determine whether the wastewater treatment meets the standard.

[0045] In combination with the accompanying drawings Figure 1 and Figure 2The pretreatment stage comprises a wastewater tank 1, a waste filtering assembly 2 is arranged in the wastewater tank 1, a conveying pipe 3 is arranged at one side of the waste filtering assembly 2, collecting assemblies 4 are arranged at two sides of the wastewater tank 1, the conveying pipe 3 conveys materials to the collecting assemblies 4 at two sides through guide pipes 32, a water pressing assembly 5 is arranged at the top of the wastewater tank 1, the water pressing assembly 5 comprises a pressing plate 53, the pressing plate 53 is used for pressing water of the collecting assemblies 4, the waste filtering assembly 2 comprises a filter cylinder 21, a cleaning assembly 22 and a flushing pipe 24 are arranged at the top of the filter cylinder 21, scraper plates 25 are arranged at the inner side of the filter cylinder 21, the waste filtering assembly 2 and the conveying pipe 3 form a rotary drum type rotary grid cleaner, and the principle is that the garbage in the wastewater is recycled and output into the conveying pipe 3 by rotating the waste filtering assembly 2.

[0046] The drawings are combined Figure 4 and Figure 6 One end of the filter cylinder 21 is provided with a first square plate 23, the other end is provided with a second square plate 26, the first square plate 23 and the second square plate 26 are movably connected with the end of the filter cylinder 21 by using bearing sleeves respectively, two ends of the scraper plates 25 are connected with the first square plate 23 and the second square plate 26 respectively, the scraper plates 25 are attached to the inner wall of the filter cylinder 21, the side walls of the first square plate 23 and the second square plate 26 are attached to the inner wall of the wastewater tank 1, the axis of the filter cylinder 21 is inclined upward, the axis of the filter cylinder 21 is collinear with the axis of the spiral conveying rod 34, and the second square plate 26 is located at an obliquely upper position of the first square plate 23. The scraper plates 25 are used for scraping off the dirt on the inner wall of the rotating filter cylinder 21.

[0047] The drawings are combined Figure 1 , Figure 4 and Figure 6 A guide plate 11 is arranged in the wastewater tank 1, the bottom of the first square plate 23 is fixed to the inner wall of the bottom of the wastewater tank 1, the guide plate 11 is close to the side from which the wastewater flows out, a circulating pump 13 is arranged above the wastewater tank 1, a guide opening 111 is arranged at the top of the guide plate 11, the bottom of the guide plate 11 is connected with the circulating pump 13, the other end of the circulating pump 13 is connected with the flushing pipe 24, the two ends of the flushing pipe 24 are connected with the first square plate 23 and the second square plate 26 respectively, a plurality of flushing openings of the flushing pipe 24 are arranged towards the scraper plates 25, the wastewater enters the filter cylinder 21 through the first square plate 23, after the filter cylinder 21 filters the waste residue, the wastewater passes through the filter cylinder 21 and meets the guide plate 11, and then flows out from the guide opening 111 at the top of the guide plate 11, the circulating pump 13 is used for pumping out the wastewater in which the waste residue has been filtered, the filter cylinder 21 is washed by the filtered wastewater, so that the filter cylinder 21 is prevented from being blocked, the filtering efficiency of the filter cylinder 21 is improved, and the water source is recycled.

[0048] The drawings are combined Figure 1 , Figure 4 and Figure 5A screw conveyor rod 34 is movably installed inside the conveying pipe 3. A receiving hopper 33 is connected to the end of the conveying pipe 3 near the filter cylinder 21. One end of the screw conveyor rod 34 passes through the receiving hopper 33. A connecting column 35 is provided on the side of the receiving hopper 33 near the first square plate 23. The bottom of the connecting column 35 is installed in the wastewater tank 1, and the top of the connecting column 35 is movably connected to the screw conveyor rod 34. A discharge pipe 31 is connected to the bottom of the end of the conveying pipe 3 away from the receiving hopper 33. A drive box 3 is installed at the end of the conveying pipe 3 near the discharge pipe 31. 6. The receiving hopper 33 is located below the cleaning component 22, the rinsing pipe 24 and the scraper 25. A support frame 12 is installed on the top of the wastewater tank 1. The conveying pipe 3 is installed on the top of the support frame 12. The first square plate 23 and the second square plate 26 are fixedly installed to the inner wall of the wastewater tank 1. The connecting column 35 is fixedly installed to the inner wall of the wastewater tank 1. The conveying pipe 3 is installed to the support frame 12. The receiving hopper 33 is fixed to the end of the conveying pipe 3 and is stabilized in the filter cylinder 21 under the limit of the spiral conveying rod 34, for receiving the scraped waste.

[0049] Combined with appendix Figures 1-3 The collection component 4 includes a positioning seat 41, which is installed on the outer wall of the wastewater tank 1. The top of the positioning seat 41 and the side away from the wastewater tank 1 are open ends. A filter plate 44 is installed at the bottom of the positioning seat 41, and a drainage cavity is formed between the bottom of the filter plate 44 and the inner wall of the positioning seat 41. The drainage cavity is connected to a water outlet pipe 43, which extends to the outside of the positioning seat 41. A trash can 42 is installed inside the positioning seat 41. The top of the trash can 42 is open, and filter screens 421 are embedded on the four adjacent sides of the trash can 42. Figure 3 As shown, one side is the side closest to the water filter plate 44. The bottom of the discharge pipe 31 is equipped with a guide pipe 32. The guide pipe 32 has a U-shaped structure with the opening facing downwards. The two output ports of the guide pipe 32 are located above the positioning seat 41. The spiral conveying rod 34 in the conveying pipe 3 transports the waste residue to the discharge pipe 31 and it falls into the guide pipe 32. The waste residue moves along the guide pipe 32 to the water filter screens 421 on both sides. The waste residue is filtered in the water filter screens 421. When the water filter screens 421 are full, they can be pulled out directly and replaced with new water filter screens 421 to achieve convenient recycling of waste residue.

[0050] Combined with appendix Figures 1-3The two intermeshing tooth discs 37 are movably installed in the drive box 36, the motor 38 is installed outside the drive box 36, the output shaft of the motor 38 is connected with one of the tooth discs 37, the other tooth disc 37 is concentrically connected with the end of the spiral conveying rod 34, the second bevel gear 57 is movably installed outside the drive box 36, the second bevel gear 57 is concentrically connected with one of the drive boxes 36, the fixed plate 52 is installed at the top of the wastewater tank 1, the second reciprocating screw rod 54 is installed at the center position of the fixed plate 52, the first bevel gear 56 is concentrically installed at the top of the second reciprocating screw rod 54, the first bevel gear 56 is engaged with the second bevel gear 57, the lifting seat 55 is assembled outside the second reciprocating screw rod 54, the lifting frames 51 are respectively installed at the two ends of the lifting seat 55, the lifting frames 51 are in L-shaped structure, the vertical part of the lifting frame 51 is located above the positioning seat 41, the pressing plate 53 is connected at the bottom end of the vertical part of the lifting frame 51, the sliding grooves 511 are formed in the vertical part of the lifting frame 51, the two ends of the fixed plate 52 are respectively penetrated into the two sliding grooves 511, the motor 38 drives the tooth disc 37 to rotate, thereby making the spiral conveying rod 34 rotate, thereby making the second bevel gear 57 rotate, the second bevel gear 57 is engaged with the first bevel gear 56, so that the second reciprocating screw rod 54 rotates, the lifting seat 55 carries the lifting frame 51 to reciprocate on the second reciprocating screw rod 54, so that the pressing plate 53 below the lifting frame 51 reciprocates to strike the top of the filter screen 421, so as to accelerate the water filtration of the waste residues in the filter screen 421, improve the recovery space of the filter screen 421, and realize solid-liquid separation.

[0051] The drawings are attached Figure 1 , Figure 4 , Figure 7 , Figure 8 and Figure 9The two end sidewalls of the filter cartridge 21 are respectively provided with a clamping tooth set 211, the cleaning assembly 22 comprises a worm 227 symmetrically arranged at the two ends of the filter cartridge 21, the end of the worm 227 is connected with a gear sleeve 228 in a concentric mode, the gear sleeve 228 is engaged with the corresponding clamping tooth set 211, the end of the worm 227 is movably connected with the first square plate 23 or the second square plate 26, one end of the filter cartridge 21 is provided with a second connecting sleeve 213 in a concentric mode, the second connecting sleeve 213 is fixedly sleeved outside the shaft of the spiral conveying rod 34, the other end of the filter cartridge 21 is provided with a first connecting sleeve 212 in a concentric mode, the first connecting sleeve 212 is movably sleeved outside the conveying pipe 3, the cleaning assembly 22 further comprises a limiting seat 223 arranged between the first square plate 23 and the second square plate 26, the limiting seat 223 is in a U-shaped structure with an opening facing upward, the horizontal part of the limiting seat 223 is provided with a through hole 224, and a cleaning brush 221 is movably arranged in the limiting seat 223 in a vertical mode, the cleaning brush 221 is penetratedly matched with the through hole 224, one side of the worm 227 is provided with a first reciprocating lead screw 225, the bottom of the first reciprocating lead screw 225 is provided with a worm gear sleeve 226 in a concentric mode, the worm gear sleeve 226 is engaged with the worm 227, the top of the first reciprocating lead screw 225 is movably connected with the first square plate 23 or the second square plate 26, and the first reciprocating lead screw 225 is provided with a moving seat 222, the moving seat 222 is fixedly arranged with the top of the cleaning brush 221, the lower end surface of the cleaning brush 221 is in an arc-shaped structure, and when the cleaning brush 221 is completely moved downward, the arc of the cleaning brush 221 is coaxial with the arc of the filter cartridge 21, through the rotation of the spiral conveying rod 34, the second connecting sleeve 213 rotates with the filter cartridge 21 in a circumferential mode, the gear sleeve 228 is engaged with the clamping tooth set 211, so that the worm 227 rotates, the worm 227 is engaged with the worm gear sleeve 226, so that the first reciprocating lead screw 225 rotates, and then the moving seat 222 reciprocally moves up and down outside the first reciprocating lead screw 225, and then the cleaning brush 221 reciprocally moves up and down in the limiting seat 223, the bristles below the cleaning brush 221 are intermittently inserted into the outer wall of the filter cartridge 21, so as to have the effect of poking off the residues attached to the inner wall of the filter cartridge 21, and in the reciprocating movement of the cleaning brush 221 up and down, the sidewall of the cleaning brush 221 is always attached to the inner wall of the limiting seat 223.

[0052] The working principle is that the wastewater flows from one end of the wastewater tank 1 to the first square plate 23, the motor 38 is operated to rotate the spiral conveying rod 34, the filter cylinder 21 is rotated, the cleaning brush 221 at the top of the filter cylinder 21 reciprocates up and down, and the residue on the inner wall of the filter cylinder 21 passes below the cleaning brush 221 in the rotating process, part of the residue is poked off by the bristles of the cleaning brush 221, and part of the residue is scraped off by the scraper 25, while the circulating pump 13 recycles the filtered wastewater at the guide plate 11 to the outside of the filter cylinder 21 through the shower pipe 24, so that the outer wall of the filter cylinder 21 has water impact on the inner wall, on the other hand, the water rinses the impurities outside the scraper 25, so that the filter cylinder 21 can reduce the blocking condition and improve the smoothness of the corrugated paper processing wastewater treatment; the spiral conveying rod 34 conveys the waste from the guide pipe 32 to the two filter screens 421, the rotation of the spiral conveying rod 34 makes the second bevel gear 57 mesh with the first bevel gear 56, and the pressing plate 53 reciprocates up and down above the filter screen 421, so as to accelerate the water filtration of the waste residue in the filter screen 421, and facilitate the recovery of the solid residue in the wastewater.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A process for treating effluent from the production of moisture resistant corrugated paper, characterized by: The method comprises the following steps: S1: a pretreatment stage, in which large-particle impurities, paper scraps and fibers in the wastewater are intercepted by a grid cleaner, the grid cleaner is provided with a flushing mechanism and a solid sludge collecting mechanism; S2: a coagulation and sedimentation stage, in which a coagulant is added into the filtered wastewater, and the wastewater is precipitated, and the upper-layer wastewater is outputted; S3: a biochemical treatment stage, in which the upper-layer outputted wastewater is sent into a biochemical treatment system, and is treated by an anaerobic reactor and an aerobic aeration tank; S4: a determination of whether the wastewater treatment reaches the standard is made by using a COD tester and a BOD tester; The pretreatment stage comprises a wastewater tank (1), a waste filtering assembly (2) is arranged in the wastewater tank (1), a conveying pipe (3) is arranged on one side of the waste filtering assembly (2), collecting assemblies (4) are arranged on both sides of the wastewater tank (1), the conveying pipe (3) conveys materials to the collecting assemblies (4) on both sides through guide pipes (32), a water pressing assembly (5) is arranged on the top of the wastewater tank (1), the water pressing assembly (5) comprises a pressing plate (53), the pressing plate (53) is used for pressing water of the collecting assemblies (4), the waste filtering assembly (2) comprises a filter cylinder (21), a cleaning assembly (22) and a flushing pipe (24) are arranged on the top of the filter cylinder (21), and a scraper (25) is arranged on the inner side of the filter cylinder (21); A spiral conveying rod (34) is movably arranged in the conveying pipe (3), an interface hopper (33) is connected to one end of the conveying pipe (3) close to the filter cylinder (21), one end of the spiral conveying rod (34) penetrates through the interface hopper (33), and a discharging pipe (31) is connected to the bottom of the other end of the conveying pipe (3) away from the interface hopper (33); Two intermeshing toothed discs (37) are movably arranged in the driving box (36), a motor (38) is arranged outside the driving box (36), the output shaft of the motor (38) is connected with one of the toothed discs (37), the other toothed disc (37) is concentrically connected with the end of the spiral conveying rod (34), a second bevel gear (57) is movably arranged outside the driving box (36), the second bevel gear (57) is concentrically connected with one of the driving boxes (36), a fixed plate (52) is arranged on the top of the wastewater tank (1), a second reciprocating screw rod (54) is arranged at the center position of the fixed plate (52), a first bevel gear (56) is concentrically arranged on the top of the second reciprocating screw rod (54), the first bevel gear (56) is in meshing engagement with the second bevel gear (57), a lifting seat (55) is assembled outside the second reciprocating screw rod (54), lifting frames (51) are arranged at both ends of the lifting seat (55), the lifting frames (51) are in L-shaped structure, the vertical part of the lifting frame (51) is located above the positioning seat (41), and the vertical part of the lifting frame (51) is connected with the pressing plate (53). Two end sides of the filter cartridge (21) are respectively provided with a set of clamping teeth (211), the cleaning assembly (22) comprises a worm (227) symmetrically arranged at two ends of the filter cartridge (21), and the end of the worm (227) is connected with a gear sleeve (228) in a concentric mode, and the gear sleeve (228) is in meshing engagement with the corresponding set of clamping teeth (211); The cleaning assembly (22) further comprises a limiting seat (223) installed between the first square plate (23) and the second square plate (26), the limiting seat (223) is in a U-shaped structure with an opening facing upwards, the horizontal part of the limiting seat (223) is provided with a through hole (224), the limiting seat (223) is vertically movably provided with a cleaning brush (221), the cleaning brush (221) is in penetrating engagement with the through hole (224), one side of the worm (227) is provided with a first reciprocating lead screw (225), the bottom of the first reciprocating lead screw (225) is connected with a worm gear sleeve (226) in a concentric mode, the worm gear sleeve (226) is in meshing engagement with the worm (227), the top of the first reciprocating lead screw (225) is movably connected with the first square plate (23) or the second square plate (26), and the first reciprocating lead screw (225) is externally provided with a moving seat (222), and the moving seat (222) is fixedly installed at the top of the cleaning brush (221).

2. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 1, characterized in that: One end of the filter cartridge (21) is provided with the first square plate (23), and the other end is provided with the second square plate (26), the first square plate (23) and the second square plate (26) are movably connected with the end of the filter cartridge (21) by using bearing sleeves, the two ends of the scraper (25) are connected with the first square plate (23) and the second square plate (26) respectively, the scraper (25) is attached to the inner wall of the filter cartridge (21), the side wall of the first square plate (23) and the second square plate (26) is attached to the inner wall of the wastewater tank (1), the center line of the filter cartridge (21) is inclined upward, and the second square plate (26) is located at an obliquely upper position of the first square plate (23).

3. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 2, characterized in that: The wastewater tank (1) is internally provided with a guide plate (11), the bottom of the first square plate (23) is fixed to the inner wall of the bottom of the wastewater tank (1), one side of the guide plate (11) is close to the wastewater outflow, the upper portion of the wastewater tank (1) is provided with a circulating pump (13), the top of the guide plate (11) is provided with a flow guide opening (111), the bottom of the guide plate (11) is connected with the circulating pump (13), the other end of the circulating pump (13) is connected with a flushing pipe (24), the two ends of the flushing pipe (24) are connected with the first square plate (23) and the second square plate (26) respectively, and the flushing pipe (24) is provided with a plurality of flushing openings facing the scraper (25).

4. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 3, characterized in that: The connecting column (35) is installed at the bottom of the waste water tank (1), and the top of the connecting column (35) is movably connected with the spiral conveying rod (34).

5. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 4, characterized in that: The collecting assembly (4) comprises a positioning seat (41) installed on the outer sidewall of the waste water tank (1), and the top and the side away from the waste water tank (1) of the positioning seat (41) are open ends; the bottom of the positioning seat (41) is installed with a water filtering disc (44), and a drainage cavity is formed between the bottom of the water filtering disc (44) and the inner wall of the positioning seat (41), and the drainage cavity is connected with a water outlet pipe (43) penetrating out of the positioning seat (41); the positioning seat (41) is provided with a garbage basket (42) inside, and the top of the garbage basket (42) is an open end; the four adjacent sides of the garbage basket (42) are respectively embeddedly installed with water filtering nets (421); the bottom of the discharging pipe (31) is installed with a material guiding pipe (32) in a U-shaped structure with an opening downward, and the two output ports of the material guiding pipe (32) are respectively located above the positioning seat (41).

6. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 5, characterized in that: The vertical part of the lifting frame (51) is provided with a sliding groove (511), and the two ends of the fixed plate (52) penetrate into the two sliding grooves (511) respectively.

7. A process for treating effluent from the production of moisture resistant corrugated paper according to claim 6, characterized in that: The end of the worm (227) is movably connected with the first square plate (23) or the second square plate (26), one end of the filter cylinder (21) is concentrically installed with a second connecting sleeve (213), the second connecting sleeve (213) is fixedly sleeved on the shaft outside the spiral conveying rod (34), and the other end of the filter cylinder (21) is concentrically installed with a first connecting sleeve (212), and the first connecting sleeve (212) is movably sleeved outside the conveying pipe (3).

Images