Environment-friendly papermaking wastewater treatment and purification device

Abstract

The utility model discloses an environment-friendly papermaking wastewater treatment and purification device which comprises a lower box body, an upper box body and a connecting flange pipe, the upper box body is fixed at the upper end of the lower box body through bolts, a sealing gasket is arranged between the lower box body and the upper box body, and the connecting flange pipe is arranged in the middle of the bottom of the lower box body. A water inlet pipe and a slag discharge pipe are arranged in the middles of the side ends of the lower box body and the upper box body in a penetrating mode, a filtering mechanism is arranged between the water inlet pipe and the slag discharge pipe, a dredging and cleaning mechanism is arranged between the upper box body and the filtering mechanism, fixing frames are fixed to the side ends of the lower box body and the upper box body, and fixing rods are fixed to the fixing frames; a spiral conveying blade is fixed to the fixing rod, the filtering mechanism comprises an inner screen drum, a filtering box and activated carbon, and the dredging and cleaning mechanism comprises a first driven gear, a shaft seal, a second driving gear, a licker-in and a second driven gear. The utility model belongs to the technical field of papermaking wastewater treatment, and particularly relates to an environment-friendly papermaking wastewater treatment and purification device.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking wastewater treatment, in particular to an environmentally friendly papermaking wastewater treatment and purification device. Background Art

[0002] Papermaking wastewater refers to wastewater generated in the pulping and papermaking process, which contains more impurities. Direct discharge will cause serious pollution to the environment. Therefore, it needs to be purified. Existing papermaking wastewater treatment and purification devices, such as the environmentally friendly papermaking wastewater treatment and purification device disclosed in application No. CN202020154105.3, utilizes the filter barrel to rotate at high speed to generate centrifugal force to separate the wastewater from the impurities contained inside. The separated wastewater is thrown onto the inner surface of the outer shell plate. Compared with the existing device, this setting improves the overall working efficiency of the device and saves time.

[0003] However, in actual use, the filter barrel in the wastewater treatment and purification device is prone to clogging. Although the prior art uses a rubber belt to beat and clean the barrel wall, the cleaning effect on the holes is poor, especially the cooking waste liquid in the papermaking wastewater contains more fiber impurities, which is more difficult to clean after clogging. In addition, the existing filter barrel is difficult to remove impurities in time after filtering them down, which seriously affects the filtration efficiency over time. For this reason, we propose an environmentally friendly papermaking wastewater treatment and purification device to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an environmentally friendly papermaking wastewater treatment and purification device, which effectively solves the problem that the current environmentally friendly papermaking wastewater treatment and purification devices are easily blocked during filtration and have poor cleaning and dredging effects, and solves the problem that the filter barrel cannot remove filtered impurities in time, resulting in a decrease in filtration capacity.

[0005] The technical solution adopted by the utility model is as follows: The utility model proposes an environmentally friendly papermaking wastewater treatment and purification device, including a lower box body, an upper box body and a connecting flange pipe, the upper box body is fixed to the upper end of the lower box body by bolts, and a sealing gasket is provided between the lower box body and the upper box body, the connecting flange pipe is arranged in the middle of the bottom of the lower box body, a water inlet pipe and a slag discharge pipe are penetrated in the middle of the side ends of the lower box body and the upper box body, and the water inlet pipe and the slag discharge pipe are symmetrically arranged, a filtering mechanism is provided between the water inlet pipe and the slag discharge pipe, and a dredging and cleaning mechanism is provided between the upper box body and the filtering mechanism.

[0006] As an improvement of this solution, a fixing frame is fixed to the side ends of the lower box body and the upper box body, a fixing rod is fixed to the fixing frame, a spiral conveying blade is fixed to the fixing rod, and a bracket is provided on the end of the lower box body and the upper box body on the side symmetrical to the fixing frame.

[0007] As an improvement of the present scheme, the filtering mechanism includes an inner sieve cylinder, a filter box and activated carbon. The inner sieve cylinder is fixed between the water inlet pipe and the slag discharge pipe. One end of the fixing rod passes through the slag discharge pipe and is arranged in the inner sieve cylinder, and the fixing rod and the inner sieve cylinder are coaxially arranged. The filter box is connected to the lower end of the connecting flange pipe, and the activated carbon is arranged in the filter box.

[0008] As an improvement of the present scheme, the dredging and cleaning mechanism comprises a driven gear 1, a shaft seal, a driving gear 2, a licker-in roller and a driven gear 2, wherein the driven gear 1 is fixed to the water inlet pipe and is arranged on the outer sides of the lower box body and the upper box body, the shaft seal is arranged on the side wall of the water inlet pipe and is rotationally connected to the lower box body and the upper box body, the driving gear 2 is fixed to the water inlet pipe and is arranged in the lower box body and the upper box body, the licker-in roller is rotationally connected to the inner wall of the upper box body and is arranged above the inner screen drum, and the driven gear 2 is fixed to both ends of the licker-in roller and meshes with the driving gear 2.

[0009] As an improvement of the present solution, a rotating motor is provided on the bracket, a driving gear 1 is provided on the output shaft of the rotating motor, and the driving gear 1 is meshed with a driven gear 1, and a rotating interface is provided at one end of the water inlet pipe.

[0010] As an improvement of the present solution, a drain pipe is provided at the bottom of the filter box, a cleaning end cover is connected to the side wall of the filter box by bolts, and a sealing gasket is provided between the cleaning end cover and the filter box.

[0011] As an improvement of the present solution, a plurality of through holes are evenly distributed on the side wall of the inner screen cylinder, and a plurality of cylindrical protrusions are evenly distributed on the side wall of the licker-in roller and can be plugged into and pulled out of the through holes on the inner screen cylinder.

[0012] As an improvement of this solution, the second driving gear is arranged between the inner screen cylinder and the upper box body, and the inner screen cylinder is arranged on the axis of the lower box body and the upper box body.

[0013] The beneficial effects achieved by the utility model using the above structure are as follows:

[0014] 1. The rolling screening mechanism is used in conjunction with fixed spiral conveying blades to filter out impurities and transport them to the outside in time, ensuring that the inner screen can filter continuously. A filter box with activated carbon is also provided to further filter and clean the papermaking wastewater after preliminary filtration, thus improving the purification effect.

[0015] 2. A dredging and cleaning mechanism is provided between the upper box and the inner screen drum. While the inner screen drum is rotating and filtering, the licker-in roller rotates synchronously with it to achieve continuous cleaning of the filter holes on the surface of the inner screen drum, thus ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of an environmentally friendly papermaking wastewater treatment and purification device proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of an environmentally friendly papermaking wastewater treatment and purification device proposed by the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the upper box body and the lower box body of this embodiment.

[0019] Among them, 1. lower box body; 2. upper box body; 3. connecting flange pipe; 4. water inlet pipe; 5. slag discharge pipe; 6. filtering mechanism; 7. unblocking and cleaning mechanism; 8. fixing frame; 9. fixing rod; 10. spiral conveying blade; 11. bracket; 12. inner screen cylinder; 13. filter box; 14. activated carbon; 15. driven gear 1; 16. shaft seal; 17. driving gear 2; 18. pricking roller; 19. driven gear 2; 20. rotating motor; 21. driving gear 1; 22. rotating interface; 23. drain pipe; 24. cleaning end cover.

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes an environmentally friendly papermaking wastewater treatment and purification device, comprising a lower box body 1, an upper box body 2 and a connecting flange pipe 3, the upper box body 2 is fixed to the upper end of the lower box body 1 by bolts, and a sealing gasket is provided between the lower box body 1 and the upper box body 2, the connecting flange pipe 3 is arranged in the middle of the bottom of the lower box body 1, and a water inlet pipe 4 and a slag discharge pipe 5 are penetrated in the middle of the side ends of the lower box body 1 and the upper box body 2, and the water inlet pipe 4 and the slag discharge pipe 5 are symmetrically arranged, a filtering mechanism 6 is provided between the water inlet pipe 4 and the slag discharge pipe 5, and a dredging and cleaning mechanism 7 is provided between the upper box body 2 and the filtering mechanism 6.

[0023] like Figure 2 and Figure 3As shown, a fixing frame 8 is fixed to the side ends of the lower box body 1 and the upper box body 2, a fixing rod 9 is fixed to the fixing frame 8, a spiral conveying blade 10 is fixed to the fixing rod 9, and a bracket 11 is provided at the end of the lower box body 1 and the upper box body 2 on the side symmetrical to the fixing frame 8.

[0024] In order to realize the multi-layer filtering and purification function of papermaking wastewater, the filtering mechanism 6 includes an inner sieve cylinder 12, a filter box 13 and activated carbon 14. The inner sieve cylinder 12 is fixed between the water inlet pipe 4 and the slag discharge pipe 5. One end of the fixing rod 9 passes through the slag discharge pipe 5 and is arranged in the inner sieve cylinder 12, and the fixing rod 9 and the inner sieve cylinder 12 are coaxially arranged. The filter box 13 is connected to the lower end of the connecting flange pipe 3, and the activated carbon 14 is arranged in the filter box 13.

[0025] In order to clean the inner sieve drum 12 and ensure the filtering effect and continuity, the dredging and cleaning mechanism 7 includes a driven gear 15, a shaft seal 16, a driving gear 2 17, a licker-in roller 18 and a driven gear 2 19. The driven gear 15 is fixed to the water inlet pipe 4 and is arranged on the outside of the lower box body 1 and the upper box body 2. The shaft seal 16 is arranged on the side wall of the water inlet pipe 4 and is rotationally connected to the lower box body 1 and the upper box body 2. The driving gear 2 17 is fixed to the water inlet pipe 4 and is arranged in the lower box body 1 and the upper box body 2. The licker-in roller 18 is rotationally connected to the inner wall of the upper box body 2 and is arranged above the inner sieve drum 12. The driven gear 2 19 is fixed to both ends of the licker-in roller 18 and meshes with the driving gear 2 17.

[0026] like Figure 1 As shown, a rotating motor 20 is provided on the bracket 11, a driving gear 21 is provided on the output shaft of the rotating motor 20, and the driving gear 21 is meshed with the driven gear 15, and a rotating interface 22 is provided at one end of the water inlet pipe 4; a drain pipe 23 is provided at the bottom of the filter box 13, and a cleaning end cover 24 is connected to the side wall of the filter box 13 by bolts, and a sealing gasket is provided between the cleaning end cover 24 and the filter box 13.

[0027] like Figure 3 As shown, a plurality of through holes are evenly distributed on the side wall of the inner screen cylinder 12, and a plurality of cylindrical protrusions are evenly distributed on the side wall of the licker-in roller 18 and can be plugged into the through holes on the inner screen cylinder 12; the driving gear 2 17 is arranged between the inner screen cylinder 12 and the upper box body 2, and the inner screen cylinder 12 is arranged on the axis of the lower box body 1 and the upper box body 2.

[0028] When in use, the rotary interface 22 is connected to the external water pipe, and the papermaking wastewater enters the water inlet pipe 4 through the rotary interface 22. The rotating motor 20 is turned on to drive the driving gear 21 to rotate, and the driven gear 15 meshing with the driving gear 21 drives the water inlet pipe 4 to rotate, and the inner screen drum 12 fixedly connected to the water inlet pipe 4 rotates therewith, and the other side rotates with the support of the slag discharge pipe 5. The papermaking wastewater entering the water inlet pipe 4 rolls with the inner screen drum 12, passes through the through holes at various places on the surface, falls into the connecting flange pipe 3 and enters the filter box 13. The papermaking wastewater entering the filter box 13 is further filtered by the activated carbon 14 and discharged from the drain pipe 23, and the filtered impurities are fixed on the fixed rod 9. And under the action of the spiral conveying blades 10 on its surface, the impurities are transported to the side of the slag discharge pipe 5 by relative rotation with the inner screen drum 12, and finally removed and collected from the slag discharge pipe 5. In the process of the inner screen drum 12 rolling, the driving gear 17 fixed on the water inlet pipe 4 drives the driven gear 19 to rotate, and the licker-in roller 18 fixedly connected to the driven gear 19 rotates under the drive of the driven gear 19. The protrusions on the surface of the driven gear 19 keep moving synchronously with the through holes on the surface of the inner screen drum 12, so that the protrusions on the driven gear 19 are gradually inserted into the through holes on the surface of the inner screen drum 12, so as to clear the impurities blocked in the through holes. The above is the use process of the entire environmentally friendly papermaking wastewater treatment and purification device.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An environmentally friendly papermaking wastewater treatment and purification device, comprising a lower box body (1), an upper box body (2) and a connecting flange pipe (3), wherein the upper box body (2) is fixed to the upper end of the lower box body (1) by bolts, and a sealing gasket is provided between the lower box body (1) and the upper box body (2), and the connecting flange pipe (3) is provided in the middle of the bottom of the lower box body (1), characterized in that: A water inlet pipe (4) and a slag discharge pipe (5) are provided through the middle of the side ends of the lower box body (1) and the upper box body (2), and the water inlet pipe (4) and the slag discharge pipe (5) are symmetrically arranged. A filtering mechanism (6) is provided between the water inlet pipe (4) and the slag discharge pipe (5), and a dredging and cleaning mechanism (7) is provided between the upper box body (2) and the filtering mechanism (6).

2. The environmentally friendly papermaking wastewater treatment and purification device according to claim 1 is characterized by: A fixing frame (8) is fixed to the side ends of the lower box body (1) and the upper box body (2), a fixing rod (9) is fixed to the fixing frame (8), a spiral conveying blade (10) is fixed to the fixing rod (9), and a bracket (11) is provided at the end of the lower box body (1) and the upper box body (2) on a side symmetrical to the fixing frame (8).

3. The environmentally friendly papermaking wastewater treatment and purification device according to claim 2 is characterized by: The filtering mechanism (6) comprises an inner sieve cylinder (12), a filter box (13) and activated carbon (14); the inner sieve cylinder (12) is fixed between a water inlet pipe (4) and a slag discharge pipe (5); one end of the fixing rod (9) passes through the slag discharge pipe (5) and is arranged in the inner sieve cylinder (12); the fixing rod (9) and the inner sieve cylinder (12) are coaxially arranged; the filter box (13) is connected to the lower end of the connecting flange pipe (3); and the activated carbon (14) is arranged in the filter box (13).

4. The environmentally friendly papermaking wastewater treatment and purification device according to claim 3 is characterized by: The dredging and cleaning mechanism (7) comprises a driven gear 1 (15), a shaft seal (16), a driving gear 2 (17), a licker-in roller (18) and a driven gear 2 (19). The driven gear 1 (15) is fixed to the water inlet pipe (4) and arranged on the outer sides of the lower box body (1) and the upper box body (2). The shaft seal (16) is arranged on the side wall of the water inlet pipe (4) and is rotatably connected to the lower box body (1) and the upper box body (2). The driving gear 2 (17) is fixed to the water inlet pipe (4) and is arranged in the lower box body (1) and the upper box body (2). The licker-in roller (18) is rotatably connected to the inner wall of the upper box body (2) and is arranged above the inner screen drum (12). The driven gear 2 (19) is fixed to both ends of the licker-in roller (18) and meshes with the driving gear 2 (17).

5. The environmentally friendly papermaking wastewater treatment and purification device according to claim 4 is characterized in that: The bracket (11) is provided with a rotating motor (20), the output shaft of the rotating motor (20) is provided with a driving gear 1 (21), and the driving gear 1 (21) is meshed with a driven gear 1 (15), and one end of the water inlet pipe (4) is provided with a rotating interface (22).

6. The environmentally friendly papermaking wastewater treatment and purification device according to claim 5 is characterized by: A drainage pipe (23) is provided at the bottom of the filter box (13), a cleaning end cover (24) is connected to the side wall of the filter box (13) via bolts, and a sealing gasket is provided between the cleaning end cover (24) and the filter box (13).

7. The environmentally friendly papermaking wastewater treatment and purification device according to claim 6 is characterized by: A plurality of through holes are evenly distributed on the side wall of the inner screen cylinder (12), and a plurality of cylindrical protrusions are evenly distributed on the side wall of the licker-in roller (18) and can be plugged into and pulled out of the through holes on the inner screen cylinder (12).

8. The environmentally friendly papermaking wastewater treatment and purification device according to claim 7 is characterized by: The second driving gear (17) is arranged between the inner screen drum (12) and the upper box body (2), and the inner screen drum (12) is arranged on the axis of the lower box body (1) and the upper box body (2).

Images