Papermaking sewage treatment device

Abstract

The utility model discloses a papermaking sewage treatment device, which relates to the technical field of sewage treatment and comprises a sleeve, a treatment tank, a pair of filter screens, a pair of overflow tanks, a pair of sewage pipes, a motor, a rotating shaft and a slag discharge pipe, the pair of overflow tanks are arranged on the left side and the right side of the treatment tank, and the pair of sewage pipes are inserted into the overflow tanks; an overflow port is formed in the side, close to the treatment tank, of the overflow tank and is flush with the upper edges of the left side wall and the right side wall of the treatment tank, the pair of filter screens is designed to be in an inverted splayed shape, and the upper ends of the pair of filter screens abut against the left side wall and the right side wall of the treatment tank respectively; according to the utility model, the pair of filter screens are obliquely arranged to form the inverted splayed shape, the rotary mounting cylinder and the baffles are arranged at the lower ends of the pair of filter screens, and a V-shaped groove is formed between every two baffles, so that slag materials can be contained and can rotate to the slag discharge pipe through the sleeve, the slag materials fall into the slag discharge pipe under the influence of gravity to be discharged, the cleaning principle and the structure are simple, and the maintenance is simple; the filter screen cannot be damaged during use, and the cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment device for papermaking. Background Technology

[0002] In papermaking wastewater treatment, filtration technology is used in multiple stages, and the filter screen (filter plate or grid) used for filtration is the core component for solid-liquid separation. In some papermaking wastewater treatment processes, such as pretreatment and primary treatment stages, filter screens are generally used for filtration. However, during the use of filter screens, residues (such as fibers, sludge, and large particles) are continuously trapped, causing filter screen blockage and affecting filtration performance.

[0003] Traditionally, cleaning is done manually, but this is inefficient, sometimes requiring machine shutdowns and disrupting the production process. The long cleaning time also impacts work efficiency. Current technology employs automated cleaning methods: one is scraper cleaning, but scraper cleaning easily damages the filter screen and is ineffective at removing viscous residue; the other is rotating brush cleaning, but the brushes easily become entangled in fibers, making self-cleaning difficult and increasing maintenance frequency. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a papermaking wastewater treatment device. A pair of filter screens are tilted to form an inverted "V" shape. A rotating mounting cylinder and baffles are provided at the lower end of the pair of filter screens. A "V" shaped groove is formed between every two baffles to collect the slag. The slag rotates through the sleeve to the slag discharge pipe, where it falls into the slag discharge pipe and is discharged due to gravity. The cleaning principle and structure are simple, maintenance is easy, the filter screens are not damaged during use, and the cleaning effect is good.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A papermaking wastewater treatment device includes a sleeve, a treatment tank, a pair of filter screens, a pair of overflow troughs, a pair of wastewater pipes, a motor, a rotating shaft, and a slag discharge pipe. The pair of overflow troughs are located on the left and right sides of the treatment tank. The pair of wastewater pipes are inserted into the overflow troughs. An overflow port is provided on the side of the overflow trough closest to the treatment tank, and the overflow port is flush with the upper edge of the left and right side walls of the treatment tank. The pair of filter screens are designed in an inverted "V" shape, with the upper ends of the filter screens abutting against the left and right side walls of the treatment tank, and the lower ends near the center of the treatment tank. The angle of inclination of the filter screens to the horizontal plane is 30-60 degrees. The rotating shaft rotates through the front and rear side walls of the treatment tank, and the axis of the rotating shaft is the same as the virtual intersection line of the extended lines of the pair of filter screens. One end of the rotating shaft... The shaft passes through the treatment tank and is connected to the output end of the motor. The motor is fixedly connected to the outer wall of the treatment tank. An installation cylinder is fixedly installed on the rotating shaft. At least eight baffles are arranged in a ring matrix on the installation cylinder. The baffles are designed along the axial direction of the rotating shaft and extend to the front and rear side walls of the treatment tank at both ends. A "V" shaped groove is formed between two adjacent baffles. The sleeve is designed coaxially with the rotating shaft and is fixedly connected to the front and rear side walls of the treatment tank at both ends. The upper and lower parts of the sleeve are respectively provided with openings. The upper opening of the sleeve is fixedly connected to the lower end of a pair of filter screens, and the lower opening is connected to the upper end of the slag discharge pipe. The virtual cylinder formed by the outer end of the at least eight baffles matches the inner side wall of the sleeve. The slag discharge pipe passes through the bottom of the treatment tank and is fixedly connected to the bottom of the treatment tank. Water outlet pipes are provided at the bottom of the left and right side walls of the treatment tank.

[0006] Preferably, guide plates are provided on the upper edges of the left and right side walls of the treatment tank and at the overflow port.

[0007] Preferably, a vibrator is provided at the bottom of the filter screen.

[0008] Preferably, the speed of the motor can be adjusted.

[0009] This utility model provides a papermaking wastewater treatment device, which has the following beneficial effects:

[0010] 1. This utility model has a pair of filter screens set at an angle to form an inverted "V" shape. A rotating mounting cylinder and baffle are set at the lower end of the pair of filter screens. A "V" shaped groove is formed between each pair of baffles to collect the slag. The slag rotates through the sleeve to the slag discharge pipe. The slag falls into the slag discharge pipe and is discharged under the influence of gravity. The cleaning principle and structure are simple, the maintenance is simple, the filter screens will not be damaged during use, and the cleaning effect is good.

[0011] 2. In this utility model, a vibrator is installed at the bottom of the filter screen. If the residue sticks to the filter screen, the vibrator can be activated to help the residue slide off. The motor speed is variable and can be controlled by personnel. Accelerating the rotation will use centrifugal force to clean the baffle itself, which is simple and convenient. Attached Figure Description

[0012] Figure 1 This is a front cross-sectional view of a papermaking wastewater treatment device according to the present invention;

[0013] Figure 2 This utility model Figure 1 Top view at point AA.

[0014] In the diagram: 1. Outlet pipe; 2. "V" shaped groove; 3. Sleeve; 4. Mounting cylinder; 5. Slag discharge pipe; 6. Baffle; 7. Rotating shaft; 8. Treatment tank; 9. Sewage pipe; 10. Guide channel; 11. Vibrator; 12. Filter screen; 13. Overflow channel; 14. Overflow port; 15. Motor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-2As shown, a papermaking wastewater treatment device includes a sleeve 3, a treatment tank 8, a pair of filter screens 12, a pair of overflow troughs 13, a pair of wastewater pipes 9, a motor 15, a rotating shaft 7, and a slag discharge pipe 5. The pair of overflow troughs 13 are located on the left and right sides of the treatment tank 8. The pair of wastewater pipes 9 are inserted into the overflow troughs 13. An overflow port 14 is provided on the side of the overflow trough 13 closest to the treatment tank 8. The overflow port 14 is flush with the upper edges of the left and right side walls of the treatment tank 8. The pair of filter screens 12 are designed in an inverted "V" shape. The upper ends of the pair of filter screens 12 abut against the left and right side walls of the treatment tank 8, respectively, and the lower ends are close to the center of the treatment tank 8. The angle of inclination of the filter screens 12 to the horizontal plane is 30-60 degrees. The rotating shaft 7 rotates through the front and rear side walls of the treatment tank 8, and the axis of the rotating shaft 7 is the same as the virtual intersection line of the extended lines of the pair of filter screens 12. One end of the rotating shaft 7 passes through the treatment tank 8 and connects to the output end of the motor 15. The motor 15 is fixedly connected to the outer wall of the treatment tank 8. An installation cylinder 4 is fixedly mounted on the rotating shaft 7. At least eight baffles 6 are arranged in a ring matrix on the installation cylinder 4. The baffles 6 are designed along the axial direction of the rotating shaft 7 and extend to the front and rear side walls of the treatment tank 8 at both ends. A "V" shaped groove 2 is formed between two adjacent baffles 6. The sleeve 3 is designed coaxially with the rotating shaft 7 and is fixedly connected to the front and rear side walls of the treatment tank 8 at both ends. The upper and lower parts of the sleeve 3 are respectively provided with openings. The upper opening of the sleeve 3 is fixedly connected to the lower end of a pair of filter screens 12, and the lower opening is connected to the upper end of the slag discharge pipe 5. The virtual cylinder formed by the outer end of the at least eight baffles 6 matches the inner side wall of the sleeve 3. The slag discharge pipe 5 penetrates the bottom of the treatment tank 8 and is fixedly connected to the bottom of the treatment tank 8. Water outlet pipes 1 are provided at the bottom of the left and right side walls of the treatment tank 8. Guide plates are provided at the upper edge of the left and right side walls of the treatment tank 8 and at the overflow port 14. A vibrator 11 is provided at the bottom of the filter screen 12. The speed of the motor 15 can be adjusted.

[0017] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows:

[0018] According to the instruction manual Figure 1-2As can be seen, when this utility model is in operation, the sewage pipe 9 is connected to the external papermaking wastewater system, and the sewage is injected into the overflow tanks 13 on both sides. The sewage enters the upper part of a pair of filter screens 12 through the overflow port 14 and the upper edge of the left and right side walls of the treatment tank 8. Since the pair of filter screens 12 are designed in an inverted "V" shape, the sewage flows down the filter screens 12 for filtration. The residue on the filter screens 12 slides down onto the baffle 6 between the pair of filter screens 12 under the influence of gravity. Here, the inclination angle of the filter screens 12 with the horizontal plane is limited to 30-60 degrees to ensure a certain filtration effect while allowing the residue to slide off. Of course, it is best to control the flow rate of sewage from the overflow tank 13 into the filter screens 12. The rotation should not be too fast. Since a "V" shaped groove 2 is formed between two adjacent baffles 6, the slag enters the "V" shaped groove 2. The motor 15 drives the rotating shaft 7, the mounting cylinder 4 and at least 8 baffles 6, thereby driving the slag through the sleeve 3 to the slag discharge pipe 5. Under the influence of gravity, the slag falls into the slag discharge pipe 5 and is discharged. In use, a slag collection device can be placed below the slag discharge pipe 5. The filtered water in the treatment tank 8 is discharged from the discharge pipe. The discharge pipe and the sewage pipe 9 are equipped with valves. The function of at least 8 baffles 6 is to reduce or prevent sewage from flowing out from the gap between the baffles 6 and the filter screen 12 when rotating. Of course, it will only be a small amount and will not affect the use of this device. This invention features a pair of filter screens 12 arranged at an inverted "V" shape. A rotating mounting cylinder 4 and baffles 6 are located at the lower end of each pair of filter screens 12. A "V"-shaped groove 2 is formed between every two baffles 6 to collect slag. The slag rotates through the sleeve 3 to the slag discharge pipe 5, where it falls under gravity and is discharged. The cleaning principle and structure are simple, maintenance is easy, and the filter screens 12 are not damaged during use, resulting in good cleaning performance.

[0019] Among them, guide plates are provided on the upper edge of the left and right side walls of the treatment tank 8 and at the overflow port 14, so that the sewage flows evenly onto the filter screen 12, thereby improving the filtration effect.

[0020] The filter screen 12 is equipped with a vibrator 11 at its bottom. If the residue sticks to the filter screen 12, the vibrator 11 can be activated to help the residue slide off. Those skilled in the art can make adaptive modifications to the connection between the filter screen 12 and the side wall of the treatment tank 8 according to the design of the vibrator 11, depending on the specific circumstances.

[0021] The speed of motor 15 can be adjusted. The speed of motor 15 is variable and can be controlled by personnel. Accelerating the rotation will use centrifugal force to clean the baffle 6 itself, which is simple and convenient.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A papermaking wastewater treatment device, characterized in that, The system includes a sleeve (3), a treatment tank (8), a pair of filter screens (12), a pair of overflow troughs (13), a pair of sewage pipes (9), a motor (15), a rotating shaft (7), and a slag discharge pipe (5). The pair of overflow troughs (13) are located on the left and right sides of the treatment tank (8), and the pair of sewage pipes (9) are inserted into the overflow troughs (13). The overflow troughs (13) have overflow ports (14) on the side closest to the treatment tank (8), and the overflow ports (14) are flush with the upper edges of the left and right side walls of the treatment tank (8). A pair of filters (12) are designed in an inverted "V" shape. The upper ends of the filters (12) abut against the left and right side walls of the treatment tank (8) respectively, and the lower ends are close to the center of the treatment tank (8). The angle of inclination of the filters (12) with the horizontal plane is 30-60 degrees. The rotating shaft (7) rotates through the front and rear side walls of the treatment tank (8), and the axis of the rotating shaft (7) is the same as the virtual intersection line of the extended pair of filters (12). One end of the rotating shaft (7) passes through the treatment tank (8) and the motor (1). 5) is connected to the output end, the motor (15) is fixedly connected to the outer wall of the processing tank (8), the rotating shaft (7) is fixedly provided with the mounting cylinder (4), the mounting cylinder (4) is provided with at least 8 baffles (6) in an annular matrix, the baffles (6) are designed along the axial direction of the rotating shaft (7) and extend to the front and rear side walls of the processing tank (8) at both ends, and a "V" groove (2) is formed between two adjacent baffles (6), the sleeve (3) is designed coaxially with the rotating shaft (7) and both ends are connected to the processing tank (8) The front and rear side walls of the sleeve (3) are fixedly connected. The upper and lower parts of the sleeve (3) are respectively provided with openings. The upper opening of the sleeve (3) is fixedly connected to the lower end of a pair of filter screens (12). The lower opening is connected to the upper end of the slag discharge pipe (5). The virtual cylinder formed by the outer end of at least 8 baffles (6) matches the inner side wall of the sleeve (3). The slag discharge pipe (5) penetrates the bottom of the treatment tank (8) and is fixedly connected to the bottom of the treatment tank (8). The bottom of the left and right side walls of the treatment tank (8) is provided with water outlet pipes (1).

2. The papermaking wastewater treatment device according to claim 1, characterized in that, Guide plates are provided on the upper edges of the left and right side walls of the treatment tank (8) and at the overflow port (14).

3. The papermaking wastewater treatment device according to claim 1, characterized in that, A vibrator (11) is provided at the bottom of the filter screen (12).

4. The papermaking wastewater treatment device according to claim 1, characterized in that, The speed of the motor (15) can be adjusted.

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