Papermaking wastewater recycling system

Abstract

The utility model relates to the technical field of papermaking wastewater treatment, and discloses a papermaking wastewater recycling system which comprises a wastewater recycling box, the wastewater recycling box is provided with an adjusting and cleaning mechanism, the adjusting and cleaning mechanism comprises a fan-shaped gear rotationally connected with one side of the wastewater recycling box, one side of the fan-shaped gear is intermittently meshed with a tooth ring, and the other side of the fan-shaped gear is meshed with the tooth ring. The upper surfaces of the tooth rings are connected with a filtering plate, the lower surface of the filtering plate is connected with a rotating disc, the meshed tooth rings are intermittently driven to rotate anticlockwise through clockwise rotation of the sector gear, and the filtering position is adjusted so that paper pulp fibers can be prevented from being accumulated on the filtering plate; filtered paper pulp can be limited and uniformly distributed on the filter plate, a rotating disc connected with the lower surface of the filter plate is driven to rotate, sliding convex blocks connected with torsional springs at the two ends of the rotating disc slide along convex blocks on ratchet wheels, the sliding convex blocks popped up by the torsional springs can be clamped in convex block grooves in the ratchet wheels for limiting and fixing, and the phenomenon that the filter plate rotates is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking wastewater treatment, in particular to a papermaking wastewater recycling system. Background Art

[0002] Paper is the most commonly used item in our daily life. Whether reading, reading newspapers, writing or painting, we have to come into contact with paper. Papermaking can be divided into two forms: machine-made and hand-made. The machine-made process is carried out continuously on the papermaking machine. The pulp suitable for the quality of paper is diluted with water to a certain concentration, and initially dehydrated in the wire part of the papermaking machine to form wet paper sheets, which are then squeezed and dehydrated, and then dried into paper. It is mainly divided into pulping, conditioning, papermaking, processing and other major steps.

[0003] First, the pulp wastewater is preliminarily filtered to remove large particles of impurities and fibers. By adding flocculants, the suspended particles in the wastewater are flocculated into large particles. The pretreated and flocculated wastewater is sent to the filtration equipment for filtration. The filtrate obtained after filtration can be reused in the papermaking production process to achieve wastewater reuse.

[0004] When the existing papermaking wastewater reuse system is in use, since the positions of the wastewater discharge port and the corresponding filter plate are fixed, when the papermaking wastewater passes through the filter plate, the pulp in the wastewater is limited back and gradually accumulates at the position below the discharge port. The pulp accumulation will hinder the flow of water through the filter screen, increase the resistance of the fluid through, and affect the equipment's filtration efficiency for wastewater. In addition, the pulp fibers on the filter plate cannot be effectively cleaned. The large amount of pulp accumulation will eventually lead to complete blockage of the filtration system, forcing the system to shut down for maintenance and cleaning, affecting production continuity. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a papermaking wastewater reuse system, which has the advantages of rotating to adjust the filter position, and solves the problems of filter plate accumulation at the corresponding position below the feed port and the inability to clean the filter plates in time.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned goal, not only the problem of filter plate accumulation at the corresponding position below the feed port is solved, but also the purpose of automatic cleaning of the filter plate is ensured. The utility model provides the following technical solutions: a papermaking wastewater reuse system, including a wastewater reuse box, the wastewater reuse box is equipped with an adjustment and cleaning mechanism, the adjustment and cleaning mechanism includes a fan gear rotatably connected to one side of the wastewater reuse box, one side of the fan gear is intermittently meshed with a toothed ring, the upper surface of the toothed ring is connected to the filter plate, the lower surface of the filter plate is connected to a rotating disk, the torsion springs at both ends of the rotating disk are connected to sliding protrusions, and the sliding protrusions are slidably connected in the ratchet.

[0009] As a preferred solution of the papermaking wastewater reuse system of the utility model, rotating grooves are provided at both ends of the rotating disk, and limiting columns are connected to both ends of the rotating disk.

[0010] As a preferred solution of the papermaking wastewater recycling system of the utility model, the upper surface of the ratchet is connected to a storage bucket, and the lower surface of the sector gear is sleeved with a motor.

[0011] As a preferred solution of the papermaking wastewater reuse system of the utility model, the upper surface of the wastewater reuse box is connected to a lower hopper, and a rotatable filter plate is arranged below the lower hopper.

[0012] As a preferred solution of the papermaking wastewater recycling system of the utility model, a scraper is slidably connected to the upper surface of the filter plate, and a bracket is connected to one side of the scraper.

[0013] As a preferred solution of the papermaking wastewater recycling system of the utility model, a conveyor belt is rotatably connected inside the bracket, and a storage box is connected to one end of the bracket away from the scraper.

[0014] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] 1. The output belt of the motor drives the sector gear to rotate clockwise, and the clockwise rotation of the sector gear intermittently drives the meshing tooth ring to rotate counterclockwise. Adjusting the filter position helps prevent the accumulation of pulp fibers on the filter plate, so that the pulp after filtration can be evenly distributed on the filter plate, driving the rotating disk connected to the lower surface of the filter plate to rotate, and the sliding protrusions connected to the torsion springs at both ends of the rotating disk slide along the protrusions on the ratchet. When the rotating disk rotates clockwise, the sliding protrusions popped out by the torsion spring will be stuck in the protrusion groove on the ratchet for limit fixing, preventing the filter plate from rotating, and ensuring that the filter plate is in the next filter area after each rotation, avoiding repeated filtering of the same area;

[0016] 2. By rotating the filter plate, the scraper scoops up the pulp fibers on the upper surface of the filter plate, and cleans the pulp limit on the filter plate, avoiding the problem of filter plate clogging caused by pulp accumulation, ensuring the stable operation of the filtration system, and transporting the pulp fibers scooped up by the scraper to the storage box for recycling and reuse through the conveyor belt on the bracket. This part of the fibers can be reused to reduce the waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional overall structural schematic diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the regulating and cleaning mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the enlarged portion of the regulating and cleaning mechanism A of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the scraper of the utility model.

[0022] In the figure: 100, wastewater recycling box; 200, adjustment and cleaning mechanism; 201, sector gear; 202, toothed ring; 203, filter plate; 204, rotating disk; 205, sliding protrusion; 206, ratchet; 207, rotating groove; 208, limiting column; 209, storage barrel; 210, motor; 211, lower hopper; 212, scraper; 213, bracket; 214, conveyor belt; 215, storage box. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-3, which is the first embodiment of the utility model, provides a papermaking wastewater recycling system, including a wastewater recycling box 100, the wastewater recycling box 100 is equipped with an adjustment cleaning mechanism 200, the adjustment cleaning mechanism 200 includes a fan-shaped gear 201 rotatably connected to one side of the wastewater recycling box 100, one side of the fan-shaped gear 201 is intermittently meshed with a toothed ring 202, the upper surface of the toothed ring 202 is connected to a filter plate 203, the lower surface of the filter plate 203 is connected to a rotating disk 204, the torsion springs at both ends of the rotating disk 204 are connected to sliding protrusions 205, and the sliding protrusions 205 slide It is connected in the ratchet 206, and the sector gear 201 rotates clockwise intermittently to drive the meshing tooth ring 202 to rotate counterclockwise, so that the limited energy of the filtered pulp is evenly distributed on the filter plate 203, driving the rotating disk 204 connected to the lower surface of the filter plate 203 to rotate, and the sliding protrusions 205 connected to the torsion springs at both ends of the rotating disk 204 slide along the protrusions on the ratchet 206. When the rotating disk 204 rotates clockwise, the sliding protrusions 205 popped out by the torsion spring will be stuck in the protrusion groove on the ratchet 206 for limiting and fixing, thereby preventing the filter plate 203 from rotating.

[0027] Rotating grooves 207 are provided at both ends of the rotating disk 204, and limiting posts 208 are connected to both ends of the rotating disk 204. The sliding protrusion 205 rotates in the rotating groove 207 at one end of the rotating disk 204. The limiting post 208 arranged in the rotating groove 207 prevents the sliding protrusion 205 from rotating too much clockwise under torque and causing dislocation.

[0028] The upper surface of the ratchet 206 is connected to a storage barrel 209, and the lower surface of the fan gear 201 is sleeved with a motor 210. The fan gear 201 is driven to rotate clockwise by the output belt of the motor 210, and the papermaking wastewater is filtered through the filter plate 203 to prevent the pulp fibers in the wastewater from being pushed and accumulated on the filter plate 203. The filtered wastewater is stored in the storage barrel 209 and can be used again.

[0029] During use, the fan gear 201 is driven by the output belt of the motor 210 to rotate clockwise, and the clockwise rotation of the fan gear 201 intermittently drives the meshing tooth ring 202 to rotate counterclockwise, so that the limited energy of the filtered pulp is evenly distributed on the filter plate 203, driving the rotating disk 204 connected to the lower surface of the filter plate 203 to rotate, and the sliding protrusions 205 connected to the torsion springs at both ends of the rotating disk 204 slide along the protrusions on the ratchet 206. When the rotating disk 204 rotates clockwise, the sliding protrusions 205 popped out by the torsion spring will be stuck in the protrusion groove on the ratchet 206 for limiting and fixing, thereby preventing the filter plate 203 from rotating.

[0030] Example 2

[0031] Reference Figure 1-4, which is the second embodiment of the utility model, provides a papermaking wastewater reuse system, including a wastewater reuse box 100 whose upper surface is connected to a lower hopper 211, and a rotatable filter plate 203 is arranged below the lower hopper 211. The papermaking wastewater is poured from the lower hopper 211 into the wastewater reuse box 100 for filtering and recovery treatment.

[0032] The upper surface of the filter plate 203 is slidably connected to a scraper 212, and one side of the scraper 212 is connected to a bracket 213. Through the rotation of the filter plate 203, the scraper 212 scrapes up the pulp fibers on the upper surface of the filter plate 203, cleans the pulp limit on the filter plate 203, and prevents excessive accumulation of pulp limit on the filter plate 203 from causing equipment blockage.

[0033] A conveyor belt 214 is rotatably connected inside the bracket 213, and a storage box 215 is connected to one end of the bracket 213 away from the blade 212. The pulp fibers scooped up by the blade 212 are transported to the storage box 215 through the conveyor belt 214 on the bracket 213 for recycling and reuse, thereby preventing waste of resources.

[0034] During use, the filter plate 203 rotates to cause the scraper 212 to scrape up the pulp fibers on the upper surface of the filter plate 203, clean the pulp limit on the filter plate 203, and transport the pulp fibers scraped up by the scraper 212 to the storage box 215 through the conveyor belt 214 on the bracket 213 for recycling and reuse to prevent waste of resources.

[0035] The remaining structure is the same as that of Example 1.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A papermaking wastewater recycling system, comprising a wastewater recycling tank (100), characterized in that: The wastewater recycling tank (100) is equipped with a regulating and cleaning mechanism (200); The regulating and cleaning mechanism (200) comprises a sector gear (201) rotatably connected to one side of the wastewater reuse tank (100), one side of the sector gear (201) is intermittently meshed with a toothed ring (202), the upper surface of the toothed ring (202) is connected to a filter plate (203), the lower surface of the filter plate (203) is connected to a rotating disk (204), and the torsion springs at both ends of the rotating disk (204) are connected to sliding protrusions (205), and the sliding protrusions (205) are slidably connected in a ratchet (206).

2. A papermaking wastewater recycling system according to claim 1, characterized in that: Rotation grooves (207) are provided at both ends of the rotating disk (204), and limiting posts (208) are connected to both ends of the rotating disk (204).

3. A papermaking wastewater recycling system according to claim 1, characterized in that: The upper surface of the ratchet (206) is connected to a storage bucket (209), and the lower surface of the sector gear (201) is sleeved with a motor (210).

4. A papermaking wastewater recycling system according to claim 1, characterized in that: The upper surface of the wastewater recycling box (100) is connected to a lower hopper (211), and a rotatable filter plate (203) is arranged below the lower hopper (211).

5. The papermaking wastewater recycling system according to claim 1, characterized in that: The upper surface of the filter plate (203) is slidably connected to a scraper (212), and one side of the scraper (212) is connected to a bracket (213).

6. A papermaking wastewater recycling system according to claim 5, characterized in that: A conveyor belt (214) is rotatably connected inside the bracket (213), and one end of the bracket (213) away from the scraper (212) is connected to a storage box (215).

Images