Papermaking industry wastewater suspended matter fine filtration treatment device

Abstract

The utility model discloses a fine filtration treatment device for suspended matters in papermaking industrial wastewater, which comprises a water inlet pipe arranged above a barrel, a water outlet pipe fixedly communicated with the bottom of the barrel, and a plurality of support legs arranged below the barrel around the water outlet pipe, so that the use stability of the barrel can be ensured; a conical filter plate is arranged below the water inlet pipe and movably mounted in the cylinder, a central rotating shaft at the other end of the conical filter plate penetrates through the water inlet pipe and is movably mounted, and a water wheel is fixedly mounted on the central rotating shaft of the conical filter plate in the water inlet pipe. By arranging the conical filter plate, suspended matters can be prevented from blocking the filter holes, meanwhile, movable brush heads are arranged on the two sides of the scraping plate in the cleaning mechanism and are matched with each other to clean the suspended matters blocked on the conical filter plate, and meanwhile, a plurality of groups of arc-shaped filter cotton are arranged in the barrel body to improve the filtering effect; the arc-shaped filter cotton can also prolong the service time, and the treatment efficiency of the papermaking industrial wastewater is integrally improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking wastewater treatment, in particular to a device for fine filtering and treating suspended matter in papermaking industrial wastewater. Background Art

[0002] During the papermaking process, the papermaking industry generates a large amount of papermaking wastewater with complex composition, especially the internal suspended matter, which is mainly fiber. Existing filtration devices are prone to the following problems when filtering papermaking wastewater: 1) Due to the large amount of suspended fibers in the wastewater, the filter mesh pores are easily clogged, resulting in poor water flow. Frequent shutdowns for maintenance will affect treatment efficiency; 2) Existing flocculation and sedimentation technology requires the addition of chemical agents for auxiliary use, which is very likely to cause secondary pollution.

[0003] According to clues, the existing technology CN218516195U discloses a high-efficiency filtration device for suspended matter in papermaking wastewater, including a cylinder, a water inlet trough and a secondary filter frame. The upper thread of the cylinder is connected to the water inlet trough, and a filter screen is installed on the inner side of the water inlet trough. A fixing frame is welded on the cylinder, and the secondary filter frame is plugged into the lower end of the cylinder, and a bracket is welded on the lower end of the cylinder; the double filtration of the filter screen and the filter cotton can improve the filtration effect of suspended matter in the wastewater; the wastewater drives the paddle to rotate and the scraper can be used to scrape the suspended matter on the filter screen into the collection screen frame for easy cleaning of the filter screen. The secondary filter frame can be taken out by rotating the baffle to facilitate the replacement of the filter cotton. However, the above technical solution still has the following problems: 1) Since the filter screen is installed horizontally, the wastewater directly impacts the filter screen, causing the suspended matter to stick to the filter screen. Although the single scraper set horizontally can scrape off some of the suspended matter, it cannot quickly drop the suspended matter into the collection frame. Moreover, since there are many fibers in the suspended matter, some fine fibers will stick to the filter holes of the filter screen, and the single scraper cannot clean them. 2) When replacing the filter cotton, it is necessary to stop the machine for replacement, which affects the efficiency of wastewater treatment. Moreover, the filter cotton is placed horizontally, and the contact area between the surface of the filter cotton and the wastewater is small. When the suspended matter is concentratedly filtered, the surface of the filter cotton will be blocked in a short time, thereby affecting the passing efficiency of the wastewater. The filter cotton needs to be replaced in time to ensure the filtration effect, resulting in increased maintenance costs.

[0004] Prior art CN221061898U discloses a papermaking wastewater treatment device, comprising an opening one on one side of a treatment box, a built-in groove one in the treatment box, the opening one and the built-in groove one being internally connected, the opening one and the built-in groove one being slidably connected to a collection frame, the two ends of one side of the collection frame being fixedly connected to fixed plates, the fixed plate and the treatment box being connected by fastening bolts; the above technical solution is configured by providing opening one, built-in groove one, a collection frame, opening two, built-in groove two, a filter plate, a fixed block, a spring, a toggle plate, a connecting rod, a block, etc., so that the collection frame and the filter plate cooperate to collect the suspended matter after filtering the papermaking wastewater. However, the above technical solution needs to be shut down for maintenance during use in order to clean the suspended matter on the filter plate, which seriously affects the efficiency of wastewater treatment; and as the amount of wastewater increases, the suspended matter will also increase, and the cleaning cycle will be correspondingly shortened, resulting in high maintenance costs and difficulty in adapting to the filtration and treatment of large-flow wastewater. Summary of the Invention

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a paper industry wastewater suspended matter fine filtration treatment device. By setting a conical filter plate, it can prevent suspended matter from clogging the filter holes. At the same time, movable brush heads are set on both sides of the scraper in the cleaning mechanism, which cooperate with each other to remove the suspended matter blocked on the conical filter plate. At the same time, multiple groups of arc-shaped filter cottons are provided inside the cylinder to improve the filtering effect. The arc-shaped filter cotton can also extend the service life, thereby improving the overall treatment efficiency of paper industry wastewater.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for fine filtration of suspended solids in wastewater from the papermaking industry comprises an inlet pipe, a cylinder, an outlet pipe, a support leg, a conical filter plate, a water wheel, a cleaning mechanism, a treatment box I, a partition, a guide rod, a movable base, a limit groove, filter cotton, and a treatment box II. The inlet pipe is installed above the cylinder, and the bottom of the cylinder is fixedly connected to the outlet pipe. Several support legs are provided below the cylinder around the outlet pipe to ensure the stability of the cylinder. The inlet pipe is located at the bottom of one side of the cylinder and has a through hole. A conical filter plate is provided below the inlet pipe. The conical filter plate is movably installed inside the cylinder, and the central shaft at the other end rotates. It passes through the water inlet pipe and is movably installed. A water wheel is fixedly installed on the central rotating shaft of the conical filter plate inside the water inlet pipe. A cleaning mechanism is provided on one side of the conical filter plate. A processing box I is provided on the outside of the cleaning mechanism. The processing box I is fixedly connected to the cylinder. A partition is provided under the conical filter plate, and the partition is fixedly installed on the cylinder. A processing box II is provided on one side of the partition, and the processing box II is fixedly connected to the cylinder. Two groups of symmetrically distributed square holes are provided on the partition, and a guide rod is provided under the partition. A movable base is movably installed on the guide rod. Limiting grooves are provided on one side of the partition and the movable base, and a number of filter cottons are provided at the bottom of the partition.

[0008] The cleaning mechanism includes a fixed plate, a scraper, a connecting rod I, a connecting rod II, an electric telescopic rod, a movable rod, an anti-skid plate, a connecting ball head, a spring I, and a brush head. The fixed plate is fixedly installed inside the cylinder and the processing box I. A scraper is provided on one side of the fixed plate. A connecting rod I is movably installed on the other side of the fixed plate. A connecting rod II is movably installed on the connecting rod I. One end of the connecting rod II is movably connected to one end of the electric telescopic rod. The other end of the electric telescopic rod is movably installed on the inner wall of the processing box I. The same movable rods are provided at both ends of the connecting rod I. One end of the movable rod is fixedly installed with an anti-skid plate, and the other end is fixedly installed with a connecting ball head. The connecting ball head and the connecting rod I are connected. A spring I is wound around the movable rod, and a brush head is movably installed on the connecting ball head; by arranging movable rods at both ends of the connecting rod I on the scraper, the spring I arranged on the movable rod can always press the brush head on the surface of the conical filter plate, and at the same time, in conjunction with the connecting ball head, the brush head can be universally adjusted, which can better fit the surface of the conical filter plate. At the same time, the connecting rod II movably installed on the connecting rod I can rotate along the rotating shaft under the extension and contraction of the electric telescopic rod, thereby driving the brush head to swing up and down, thereby achieving efficient cleaning of the surface of the conical filter plate, and cooperating with the scraper to scrape the residue on the surface of the conical filter plate into the inside of the processing box I for collection.

[0009] Two sets of water baffles are provided above the conical filter plate. There is a gap between the bottom of the water baffle and the conical filter plate to prevent the filtered solids from being blocked by the water baffle. The water baffle is installed between the bottom through hole of the water inlet pipe and the cleaning mechanism, and is fixedly installed on the inner wall of the cylinder, which can prevent sewage from entering the treatment box I and affecting the collection of suspended matter.

[0010] The filter cotton is movably mounted on both sides of the limit plates, a spring II is fixedly connected between the limit plates, and the limit plates are engaged with the partition plate and the upper limit groove of the movable base.

[0011] Preferably, a movable door I is provided on one side of the treatment box I to facilitate staff to process the suspended matter collected inside the treatment box I.

[0012] Preferably, a movable door II is provided on one side of the processing box II to facilitate staff to replace and adjust the filter cotton inside the processing box II.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1) Papermaking wastewater enters the cylinder through the water inlet pipe and then undergoes primary filtration through the conical filter plate. The conical filter plate can effectively prevent the occurrence of filter hole clogging caused by the accumulation of suspended matter. At the same time, the papermaking wastewater will drive the water wheel to rotate during the flow in the water inlet pipe. The water wheel drives the conical filter plate to rotate synchronously through the rotating shaft. During the rotation of the conical filter plate, the cleaning mechanism cleans the suspended matter remaining on the surface into the treatment box I, realizing self-cleaning of the conical filter plate, effectively preventing the accumulation of suspended matter and clogging, greatly improving the treatment efficiency of the conical filter plate, extending the maintenance cycle, and reducing maintenance costs;

[0015] 2) By setting up a cleaning structure, not only is a scraper provided, but also movable rods are provided at both ends of the connecting rod I on the scraper. The spring I provided on the movable rod can always press the brush head against the surface of the conical filter plate. At the same time, the brush head can be universally adjusted in conjunction with the connecting ball head, which can better fit the surface of the conical filter plate and achieve the purpose of efficient cleaning. In addition, the connecting rod II movably installed on the connecting rod I can rotate along the rotating shaft under the extension and contraction of the electric telescopic rod, thereby driving the brush head to swing up and down, cooperating with the scraper to further improve the cleaning efficiency of the conical filter plate surface;

[0016] 3) When replacing the filter cotton, open the movable door II, and then quickly pull the limit plates on both sides of the filter cotton out of the limit groove. After pulling it out, the limit plates at both ends of the filter cotton on the remaining side will squeeze the movable base under the partition along the guide rod to the empty side under the action of spring II, thereby driving the filter cotton to unfold and closing the through holes on the partition. The filter cotton can be replaced without stopping the machine, without affecting the efficiency of the wastewater fine filtration treatment and ensuring the continuity of wastewater treatment. After the pulled out filter cotton is cleaned, the limit plate is quickly pushed in along the limit groove. Under the action of spring II, the two groups of filter cotton on one side will tend to a balanced state, so that filtering work can be carried out at the same time. The filter cotton is overall arc-shaped, which can increase the contact cotton knots with the wastewater, improve the filtration efficiency, and avoid clogging caused by suspended matter on the surface, greatly improving the stability of the filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 This is a schematic structural diagram of a device for finely filtering suspended solids in wastewater from the papermaking industry;

[0018] Attachment Figure 2 This is a side structural diagram of a papermaking industrial wastewater suspended solids fine filtration treatment device of the utility model;

[0019] Attachment Figure 3 It is a schematic diagram of the internal structure of the cylinder;

[0020] Attachment Figure 4 It is a schematic diagram of the cleaning mechanism structure;

[0021] Attachment Figure 5This is a schematic diagram of the scraper installation effect;

[0022] Attachment Figure 6 This is a schematic diagram of the partition installation effect;

[0023] Attachment Figure 7 This is a schematic diagram of the filter cotton installation effect;

[0024] Attachment Figure 8 Schematic diagram of the limiting plate structure;

[0025] Attachment Figure 9 Schematic diagram of the bottom structure of the partition;

[0026] In the figure: 10, water inlet pipe; 11, cylinder; 12, water outlet pipe; 13, support leg; 14, conical filter plate; 15, water wheel; 16, water baffle; 17, cleaning mechanism; 18, treatment box I; 19, partition; 20, filter cotton; 21, treatment box II; 171, fixed plate; 172, scraper; 173, connecting rod I; 174, connecting rod II; 175, electric telescopic rod; 176, movable rod; 1761, anti-skid plate; 1762, connecting ball head; 177, spring I; 178, brush head; 181, movable door I; 191, guide rod; 192, movable base; 193, limit groove; 201, limit plate; 202, spring II; 211, movable door II. DETAILED DESCRIPTION

[0027] To facilitate understanding by those skilled in the art, Figure 1-9 , the technical solution of the utility model is further described in detail.

[0028] A papermaking industrial wastewater suspended solids fine filtration treatment device, including an inlet pipe 10, a cylinder 11, an outlet pipe 12, a support leg 13, a conical filter plate 14, a water wheel 15, a cleaning mechanism 17, a treatment box I 18, a partition 19, a guide rod 191, a movable base 192, a limit groove 193, a filter cotton 20, and a treatment box II 21. The inlet pipe 10 is installed above the cylinder 11, and the bottom of the cylinder 11 is fixedly connected to the outlet pipe 12. A number of support legs 13 are provided below the cylinder 11 around the outlet pipe 12 to ensure that the filter is clean and stable. To ensure the stability of the cylinder 11, a through hole is provided at the bottom of one side of the water inlet pipe 10 inside the cylinder 11. A conical filter plate 14 is provided below the water inlet pipe 10. The conical filter plate 14 is movably installed inside the cylinder 11. The central rotating shaft at the other end passes through the water inlet pipe 10 and is movably installed. A water wheel 15 is fixedly installed on the central rotating shaft of the conical filter plate 14 inside the water inlet pipe 10. A cleaning mechanism 17 is provided on one side of the conical filter plate 14. A processing box I 18 is provided on the outside of the cleaning mechanism 17. The processing box I 18 is fixedly connected to the cylinder 11. A partition 19 is provided below the conical filter plate 14. The partition 19 is fixedly mounted on the cylinder 11. A treatment box II 21 is provided on one side of the partition 19. The treatment box II 21 is fixedly connected to the cylinder 11. Two sets of symmetrically distributed square holes are provided on the partition 19. A guide rod 191 is provided below the partition 19. A movable base 192 is movably mounted on the guide rod 191. A limiting groove 193 is provided on one side of the partition 19 and the movable base 192. A plurality of filter cottons 20 are provided at the bottom of the partition 19. Papermaking wastewater passes through the water inlet pipe 10 It enters the cylinder 11 and then undergoes initial filtration through the conical filter plate 14. At the same time, the papermaking wastewater drives the water wheel 15 to rotate during the flow in the water inlet pipe 10. The water wheel 15 drives the conical filter plate 14 to rotate through the rotating shaft. During the rotation of the conical filter plate 14, the suspended matter remaining on the surface is cleaned by the cleaning mechanism 17 and sent to the treatment box I 18. The treated and filtered papermaking wastewater enters and flows downward through the through holes on the partition 19, and then passes through the filter cotton 20 for fine filtration before entering the outlet pipe 12 and flowing out.

[0029] The cleaning mechanism 17 includes a fixed plate 171, a scraper 172, a connecting rod I 173, a connecting rod II 174, an electric telescopic rod 175, a movable rod 176, an anti-skid plate 1761, a connecting ball head 1762, a spring I 177, and a brush head 178. The fixed plate 171 is fixedly installed inside the cylinder 11 and the processing box I 18. A scraper 172 is provided on one side of the fixed plate 171, and a connecting rod I 173 is movably installed on the other side of the fixed plate 171. A connecting rod II 174 is movably installed on the connecting rod I 173. One end of the connecting rod II 174 is movably connected to one end of the electric telescopic rod 175, and the other end of the electric telescopic rod 175 is movably installed on the inner wall of the processing box I 18. The same movable rods 176 are provided at both ends of the connecting rod I 173. One end of the movable rod 176 is fixedly installed with an anti-skid plate 1761 to prevent it from falling off, and the other end is fixedly installed with a connecting ball head 1762. A spring Ⅰ177 is wound around the movable rod 176 between the ball head 1762 and the connecting rod Ⅰ173, and a brush head 178 is movably installed on the connecting ball head 1762; by providing movable rods 176 at both ends of the connecting rod Ⅰ173 on the scraper 172, the spring Ⅰ177 provided on the movable rod 176 can always press the brush head 178 on the surface of the conical filter plate 14, and at the same time, cooperate with the connecting ball head 1762 to realize universal adjustment of the brush head 178, which can better fit the surface of the conical filter plate 14. At the same time, the connecting rod Ⅱ174 movably installed on the connecting rod Ⅰ173 can rotate along the rotating shaft under the extension and contraction of the electric telescopic rod 175, thereby driving the brush head 178 to swing up and down, thereby realizing efficient cleaning of the surface of the conical filter plate 14, and cooperating with the scraper 172, the residue on the surface of the conical filter plate 14 is scraped to the inside of the processing box Ⅰ18 for collection.

[0030] Two sets of water baffles 16 are provided above the conical filter plate 14. There is a gap between the bottom of the water baffle 16 and the conical filter plate 14 to prevent the filtered solids from being blocked by the water baffle 16. The water baffle 16 is installed between the bottom through hole of the water inlet pipe 10 and the cleaning mechanism 17, and is fixedly installed on the inner wall of the cylinder 11, which can prevent sewage from entering the treatment box Ⅰ18 and affecting the collection of suspended matter.

[0031] A movable door I181 is provided on one side of the treatment box I18 to facilitate staff to process the suspended matter collected inside the treatment box I18.

[0032] The filter cotton 20 is movably mounted on the limit plates 201 at both sides, and a spring II 202 is fixedly connected between the limit plates 201 . The limit plates 201 are engaged with the partition 19 and the upper limit groove 193 on the movable base 192 .

[0033] A movable door II 211 is provided on one side of the processing box II 21 to facilitate staff to replace and adjust the filter cotton inside the processing box II 21.

[0034] A device for fine filtration of suspended solids in wastewater from the papermaking industry. The working process is as follows: the papermaking wastewater enters the interior of the cylinder 11 through the water inlet pipe 10, and then passes through the conical filter plate 14 for primary filtration. At the same time, the papermaking wastewater flows in the water inlet pipe 10, which drives the water wheel 15 to rotate. The water wheel 15 drives the conical filter plate 14 to rotate through the rotating shaft. During the rotation of the conical filter plate 14, the cleaning mechanism 17 cleans the suspended solids remaining on the surface.

[0035] While the scraper 172 is being used for scraping, the electric telescopic rod 175 is extended and retracted to drive the connecting rod II 174 to move, thereby driving the connecting rod I 173 to move back and forth. During the movement of the connecting rod I 173, the spring I 177 provided on the movable rod 176 can always press the brush head 178 on the surface of the conical filter plate 14. At the same time, the universal adjustment of the brush head 178 can be achieved in conjunction with the connecting ball head 1762, so that the brush head 178 can be more closely fitted to the surface of the conical filter plate 14 to achieve efficient cleaning. After the initial filtration, the wastewater flows downward through the through-holes on the partition 19 and then passes through the filter cotton 20 for fine filtration and then enters the water outlet pipe 12 for outflow. When the filter cotton 20 needs to be replaced, At this time, the movable door II 211 can be opened, and then the limit plates 201 on both sides of the filter cotton 20 can be quickly pulled out of the limit groove 193. After pulling out, the limit plates 201 on both sides of the remaining filter cotton 20 will squeeze the movable base 192 below the partition 19 to one side along the guide rod 191 under the action of the spring II 202 to achieve closure without affecting the wastewater fine filtration work. After the drawn-out filter cotton is cleaned, the limit plate 201 is quickly pushed in along the limit groove 193. Under the action of the spring II 202, the two groups of filter cottons 20 will tend to a balanced state and perform filtering work at the same time. The papermaking wastewater that has been filtered twice will eventually flow out through the water outlet pipe 12 at the bottom of the cylinder 11.

[0036] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A papermaking industrial wastewater suspended solids fine filtration treatment device, including an inlet pipe, a cylinder, an outlet pipe, a support leg, a conical filter plate, a water wheel, a cleaning mechanism, a treatment box I, a partition, a guide rod, a movable base, a limit groove, filter cotton, and a treatment box II, characterized in that The water inlet pipe is installed above the cylinder, and the bottom of the cylinder is fixedly connected to a water outlet pipe. A number of legs are provided under the cylinder around the outlet pipe to ensure the stability of the cylinder in use. The water inlet pipe is located at the bottom of one side of the cylinder and a through hole is opened. A conical filter plate is provided under the water inlet pipe, which is movably installed inside the cylinder, and the central rotating shaft at the other end passes through the water inlet pipe and is movably installed. A water wheel is fixedly installed on the central rotating shaft of the conical filter plate inside the water inlet pipe. A cleaning mechanism is provided on one side of the conical filter plate, and a processing box I is provided on the outside of the cleaning mechanism. The processing box I is fixedly connected to the cylinder, and a partition is provided under the conical filter plate, which is fixedly mounted on the cylinder, and a processing box II is provided on one side of the partition. The processing box II is fixedly connected to the cylinder, and two groups of symmetrically distributed square holes are opened on the partition. A guide rod is provided under the partition, and a movable base is movably installed on the guide rod. Limiting grooves are provided on one side of the partition and the movable base, and a number of filter cottons are provided at the bottom of the partition. The cleaning mechanism includes a fixed plate, a scraper, a connecting rod I, a connecting rod II, an electric telescopic rod, a movable rod, an anti-skid plate, a connecting ball head, a spring I, and a brush head. The fixed plate is fixedly installed inside the cylinder and the processing box I. A scraper is provided on one side of the fixed plate, and a connecting rod I is movably installed on the other side of the fixed plate. A connecting rod II is movably installed on the connecting rod I. One end of the connecting rod II is movably connected to one end of the electric telescopic rod, and the other end of the electric telescopic rod is movably installed on the inner wall of the processing box I. The same movable rods are provided at both ends of the connecting rod I. One end of the movable rod is fixedly installed with an anti-skid plate, and the other end is fixedly installed with a connecting ball head. A spring I is wound on the movable rod between the connecting ball head and the connecting rod I, and a brush head is movably installed on the connecting ball head.

2. The device for fine filtration of suspended solids in wastewater from papermaking industry according to claim 1, characterized in that Two sets of water baffles are provided above the conical filter plate. There is a gap between the bottom of the water baffle and the conical filter plate to prevent the filtered solids from being blocked by the water baffle. The water baffle is installed between the bottom through hole of the water inlet pipe and the cleaning mechanism, and is fixedly installed on the inner wall of the cylinder.

3. The device for fine filtration of suspended solids in wastewater from papermaking industry according to claim 1, characterized in that The filter cotton is movably mounted on both sides of the limit plates, a spring II is fixedly connected between the limit plates, and the limit plates are engaged with the partition plate and the upper limit groove of the movable base.

4. The device for fine filtration of suspended solids in wastewater from papermaking industry according to claim 1, characterized in that A movable door I is provided on one side of the processing box I.

5. The device for fine filtration of suspended solids in wastewater from papermaking industry according to claim 1, characterized in that A movable door II is provided on one side of the processing box II.

Images