CN114524551A

CN114524551A - Papermaking wastewater pretreatment device

Info

Publication number: CN114524551A
Application number: CN202210222496.1A
Authority: CN
Inventors: 金欣刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-05-24

Abstract

The invention belongs to the field of papermaking wastewater treatment, and relates to a papermaking wastewater pretreatment device which comprises a cylindrical first box body and a second box body fixedly arranged on the side surface of the first box body, wherein a coagulant storage tank is fixedly arranged on a shell on one side of the first box body, which is back to the second box body, a water inlet is arranged on one side, which is close to the coagulant storage tank, of the top side of the first box body, a control motor is fixedly arranged on the top of the second box body, a discharge outlet is arranged on the shell on one side, which is back to the first box body, of the second box body, the first box body comprises a first shell, a first motor is arranged on the top of the inner side of the first shell, a vertically downward control shaft is arranged below the first motor, a wastewater separation module is arranged below the control shaft, a treatment cavity is arranged in the first shell below the wastewater separation module, a defoaming module is arranged in the treatment cavity on the control shaft, and a stirring rod is arranged below the defoaming module, a compact drainage module is arranged in the coagulant storage tank. Can remove a large amount of floating foam containing harmful substances generated in the cleaning process of the papermaking wastewater.

Description

Papermaking wastewater pretreatment device

Technical Field

The invention belongs to the field of papermaking wastewater treatment, and particularly relates to a papermaking wastewater pretreatment device.

Background

The papermaking wastewater refers to wastewater generated in the pulping and papermaking process. Comprises pulping and cooking waste liquor, washing waste water, bleaching waste water, paper machine white water and the like. The papermaking wastewater has complex components and poor biodegradability, belongs to industrial wastewater which is difficult to treat, and is one of main industrial pollution sources in China.

Papermaking waste water can produce the froth of a large amount of harmful substance that contain at the in-process of clearance, and current equipment is not thorough to the froth clearance, needs the device that the design can thoroughly clear away the froth.

Disclosure of Invention

The invention aims to provide a papermaking wastewater pretreatment device aiming at the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a papermaking wastewater pretreatment device comprises a cylindrical first box body and a second box body fixedly arranged on the side surface of the first box body, wherein a coagulant storage tank is fixedly arranged on a shell on one side of the first box body, which is back to the direction of the second box body, and a water inlet is formed in one side, close to the direction of the coagulant storage tank, of the top side of the first box body; a control motor is fixedly arranged at the top of the second box body, and a discharge hole is formed in the shell at one side of the second box body, which is back to the first box body; the first box body comprises a first shell, a first motor is arranged at the top of the inner side of the first shell, a vertically downward control shaft is arranged below the first motor, a waste water separation module is arranged below a water inlet on the control shaft, a treatment cavity is arranged in the first shell below the waste water separation module, a defoaming module is arranged in the treatment cavity on the control shaft, and a stirring rod is arranged on the control shaft below the defoaming module; and a compact drainage module is arranged in the coagulant storage tank.

Preferably, the waste water separation module includes the discoid rotation water strainer plate of fixed mounting in first casing, the water strainer hole that a plurality of rule distributes is seted up on the rotation water strainer plate, it has seted up the blanking mouth to be close to second box direction one side on the water strainer plate to rotate, the top of rotating the water strainer plate is located the control shaft and is equipped with the rotation driving lever through rotating the cover. The rotating shifting rod can push fibers and particles which are left after being filtered on the rotating water filtering plate to the blanking port and fall onto the rotating disc, and the movable shifting plate is pushed by the electric hydraulic rod to drop the fibers and the particles on the rotating disc into the second box.

Preferably, a notch is formed in the shell between the first box body and the second box body, a rotating shaft controlled by a control motor is arranged in the notch, a rotating disc is fixedly arranged below the rotating water filtering plate on the rotating shaft, a movable shifting plate is arranged on the inner side wall of the second box body above the rotating disc, a hydraulic rod is arranged on one side, close to the direction of the discharge port, of the movable shifting plate, and an electric hydraulic rod is arranged on the other side of the movable shifting plate.

Preferably, the blanking port is provided with a slide way which faces downwards to the second box body in an inclined mode.

Preferably, the compact drainage module comprises a sewage cleaning opening, a water filtering pressure plate is arranged below the sewage cleaning opening in the second box body, and a plurality of drainage small holes which are uniformly distributed are formed in the water filtering pressure plate; the water storage tank is arranged below the rotary pressing block, a drain pipe communicated with the treatment cavity is arranged on the shell of the second box body of the water storage tank, and a one-way valve facing the treatment cavity is arranged in the drain pipe.

Preferably, a sliding groove with a spring is formed in the shell, located on the second box body, of the water filtering pressure plate, a rotating pressing block is arranged above the water filtering pressure plate in the direction opposite to the direction of the upper portion of the water filtering pressure plate, a sealing sliding block is arranged in the shell, located in the second box body, of the water filtering pressure plate, and a connecting rod communicated with the hydraulic rod is arranged in the shell of the second box body.

Preferably, the coagulant storage tank is provided with a treatment cavity communicated with the treatment cavity, the feeding pipe is provided with a sealing chute on the first shell, the chute is arranged on the first shell below the feeding pipe, a floating plate is arranged in the chute, a valve plate in the sealing chute is fixedly arranged on the floating plate, and a feeding hole is formed in the valve plate.

Preferably, the defoaming module comprises a sliding part, a second shell is arranged on the sliding part, a conveying pipe is arranged in the second shell, and a plurality of defoaming parts are arranged on the conveying pipe; the central point of second casing puts and is equipped with the control pump, the control pump below is equipped with the blow off pipe, the blow off pipe is located and is equipped with sewage pipes in the control shaft, sewage pipes below is located first casing bottom and is equipped with the blowoff valve.

Drawings

Fig. 1 is an isometric schematic of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a sectional view taken along the direction E-E in fig. 2.

Fig. 4 is a sectional view taken in the direction of G-G in fig. 3.

Fig. 5 is a sectional view taken in the direction F-F in fig. 3.

Fig. 6 is an enlarged schematic view at a in fig. 3.

Fig. 7 is an enlarged schematic view at B in fig. 3.

In the figure, 10, a first box; 11. a second case; 12. a coagulant storage tank; 13. a water inlet; 14. controlling the motor; 15. a discharge port; 16. a first housing; 17. water filtering holes; 18. rotating the water filtering plate; 19. a water outlet; 20. a floating tank; 21. a defoaming module; 22. controlling the pump; 23. a sliding member; 24. a stirring rod; 25. a blow-off pipe; 26. a blowoff valve; 27. a feed pipe; 28. a blowdown line; 29. a treatment chamber; 30. a drain pipe; 31. a water discharge pipeline; 32. a drain valve; 33. a one-way valve; 34. a water storage tank; 35. a water filtration pressure plate; 36. rotating the pressing block; 37. cleaning a sewage port; 38. a movable poking plate; 39. a rotating shaft; 40. rotating the disc; 41. a blanking port; 42. rotating the deflector rod; 43. a first motor; 44. a control shaft; 45. an electro-hydraulic lever; 46. a hydraulic lever; 47. a second housing; 48. a delivery pipe; 49. a foam extracting component; 50. a floating plate; 51. a feed inlet; 52. sealing the chute; 53. a valve plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 7, a pretreatment device for paper-making wastewater comprises a cylindrical first tank 10 and a second tank 11 fixedly installed on the side surface of the first tank 10, wherein a coagulant storage tank 12 is fixedly installed on the casing of the first tank 10 on the side back to the direction of the second tank 11, and a water inlet 13 is arranged on the top side of the first tank 10 close to the direction of the coagulant storage tank 12; a control motor 14 is fixedly arranged at the top of the second box body 11, and a discharge hole 15 is formed in the shell at one side of the second box body 11, which is back to the first box body 10; the first box body 10 comprises a first shell 16, a first motor 43 is arranged at the top of the inner side of the first shell 16, a vertically downward control shaft 44 is arranged below the first motor 43, a wastewater separation module is arranged below the water inlet 13 on the control shaft 44, a treatment cavity 29 is arranged in the first shell 16 below the wastewater separation module, a defoaming module 21 is arranged in the treatment cavity 29 on the control shaft 44, and a stirring rod 24 is arranged on the control shaft 44 below the defoaming module 21; a compact drainage module is arranged in the coagulant storage tank 12.

Further, waste water separation module includes the discoid rotation drainage plate 18 of fixed mounting in first casing 16, has seted up the drainage hole 17 that a plurality of rule distributes on the rotation drainage plate 18, rotates the drainage plate 18 and has seted up blanking mouth 41 near second box 11 direction one side, and the top of rotating the drainage plate 18 is located the cover through rotating on the control shaft 44 and is equipped with rotation driving lever 42. The rotating shifting rod 42 can push fibers and particles left after being filtered on the rotating water filtering plate 18 to the blanking port 41 and fall onto the rotating disc 40, and the movable shifting plate 38 is pushed by the electric hydraulic rod 45 to drop the fibers and the particles on the rotating disc 40 into the second box body 11.

Furthermore, a notch is formed in the shell between the first box body 10 and the second box body 11, a rotating shaft 39 controlled by the control motor 14 is arranged in the notch, a rotating disc 40 is fixedly arranged below the rotating water filtering plate 18 on the rotating shaft 39, a movable shifting plate 38 is arranged on the inner side wall of the second box body 11 above the rotating disc 40, a hydraulic rod 46 is arranged on one side, close to the direction of the discharge hole 15, of the movable shifting plate 38, and an electric hydraulic rod 45 is arranged on the other side of the movable shifting plate 38.

Further, the blanking port 41 is provided with a slide way which is inclined downwards towards the second box body 11.

Further, the compact drainage module comprises a dirt cleaning opening 37, a water filtering pressure plate 35 is arranged below the dirt cleaning opening 37 in the second box body 11, and a plurality of drainage small holes which are uniformly distributed are formed in the water filtering pressure plate 35; a water storage tank 34 is arranged below the rotating pressing block 36, a water discharge pipe 30 leading into the treatment cavity 29 is arranged on the shell of the second box body 11 of the water storage tank 34, and a one-way valve 33 facing into the treatment cavity 29 is arranged in the water discharge pipe 30.

Furthermore, a sliding groove with a spring is formed in the shell of the water filtering pressure plate 35 positioned in the second box body 11, a 57 is arranged above the water filtering pressure plate 35 and is back to the 57 direction, a rotating pressing block 36 is arranged on the 57 direction, a 58 is arranged in the shell of the second box body 11 on the 57 direction, a 59 which is in sealing sliding is arranged in the 58 on the 57 direction, and a 56 which is communicated with the hydraulic rod 46 is arranged in the shell of the second box body 11 on the 58.

Further, the coagulant storage tank 12 is provided with a treatment chamber 29 communicated with the treatment chamber 29, the feeding pipe 27 is provided with a sealing sliding groove 52 on the first shell 16, the sliding groove is provided on the first shell 16 below the feeding pipe 27, a floating plate 50 is arranged in the sliding groove, a valve plate 53 in the sealing sliding groove 52 is fixedly arranged on the floating plate 50, and a feeding hole 51 is arranged on the valve plate 53.

Further, the defoaming module 21 comprises a sliding part 23, a second shell 47 is arranged on the sliding part 23, a conveying pipe 48 is arranged in the second shell 47, and a plurality of defoaming parts 49 are arranged on the conveying pipe 48; the central position of the second shell 47 is provided with a control pump 22, a sewage discharge pipe 25 is arranged below the control pump 22, a sewage discharge pipeline 28 is arranged in the sewage discharge pipe 25 and positioned in the control shaft 44, and a sewage discharge valve 26 is arranged at the bottom of the first shell 16 and positioned below the sewage discharge pipeline 28.

Principle of operation

Before the pretreatment of the paper-making wastewater by the paper-making wastewater pretreatment device is started, the operation of the equipment is checked. Firstly, whether the power supply of each device is intact and whether safety measures are in place are checked. The connection between each equipment is ensured to be good and effective, and the equipment can normally run by opening each equipment switch.

Coagulant for wastewater purification, which is required before the apparatus is activated, is placed in coagulant storage tank 12, and at this time, feed pipe 27 of coagulant storage tank 12 into treatment chamber 29 is blocked by valve plate 53, and coagulant cannot enter treatment chamber 29.

At this time, the rotating block 36 is in a horizontal state, and the rotating block 36 is located below the cleaning opening 37 and at the position closest to the cleaning opening 37.

The waste water after paper making is fed into the apparatus through the water inlet 13, the waste water falling from the water inlet 13 falls on the rotary strainer plate 18, fiber particles contained in the waste water are left on the rotary strainer plate 18, and the filtered waste water flows into the treatment chamber 29.

At this time, the first motor 43 controls the control shaft 44 to rotate, which drives the rotary rod 42 to rotate and sweep the fibrous granular salt 1 on the rotary filter plate 18 onto the rotary disk 40.

Meanwhile, the control motor 14 controls the rotating shaft 39 to rotate to drive the rotating disc 40 to rotate in the counterclockwise direction, fiber particles falling on the rotating disc 40 are continuously increased and accumulated in the rotating process, the electric hydraulic rod 45 is controlled to push outwards, and the movable shifting plate 38 pushes the fiber particles on the rotating disc 40 down.

When the movable shifting plate 38 rotates towards the hydraulic rod 46, the movable shifting plate 38 pushes the hydraulic rod 46 to push hydraulic oil into the hydraulic cylinder 58 along the direction 56, and the pushing 59 drives the rotating pressing block 36 to turn up, so that fiber particles can not be influenced to fall on the water filtering pressure plate 35.

After a certain time, the electro-hydraulic lever 45 starts to return, causing the rotating mass 36 to fall rapidly, slapping the fiber particles falling onto the water-filtering pressure plate 35, causing the water to fall into the reservoir 34 and drain through the one-way valve 33 and the drain 30 into the treatment chamber 29.

When the liquid level in the treatment chamber 29 gradually rises, the liquid level drives the floating plate 50 to move upwards, and simultaneously drives the valve plate 53 to move upwards along the sealing chute 52, so that the feeding pipe 27 is penetrated by the feeding hole 51, and the coagulant in the coagulant storage tank 12 enters the treatment chamber 29.

At this moment, the defoaming module 21 is located above the liquid level, the stirring rod 24 is controlled to mix and stir the wastewater and the coagulant, meanwhile, the control pump 22 controls the sliding part 23 to drive the defoaming module 21 to rotate clockwise, floating foam on the upper layer of the liquid level is sucked by the defoaming part 49 and is sent into the sewage pipe 25 through the delivery pipe 48, and is sent to the sewage valve 26 by the sewage pipeline 28 to be discharged outwards.

The filtered water is discharged through the drain valve 32 and the fiber particles are cleaned out through the soil cleaning port 37.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a papermaking waste water pretreatment device, includes first box (10) of columniform and fixed mounting second box (11) in the side of first box (10), its characterized in that: a coagulant storage tank (12) is fixedly arranged on the shell of one side of the first box body (10) facing away from the second box body (11), and a water inlet (13) is formed in one side of the top side of the first box body (10) close to the coagulant storage tank (12); a control motor (14) is fixedly arranged at the top of the second box body (11), and a discharge hole (15) is formed in the shell of one side of the second box body (11) back to the first box body (10); the first box body (10) comprises a first shell (16), a first motor (43) is arranged at the top of the inner side of the first shell (16), a vertically downward control shaft (44) is arranged below the first motor (43), a waste water separation module is arranged below a water inlet (13) on the control shaft (44), a treatment cavity (29) is arranged in the first shell (16) below the waste water separation module, a defoaming module (21) is arranged in the treatment cavity (29) on the control shaft (44), and a stirring rod (24) is arranged on the control shaft (44) below the defoaming module (21); a compact drainage module is arranged in the coagulant storage tank (12).

2. The pretreatment device for paper making wastewater according to claim 1, characterized in that: waste water separation module includes discoid rotation water strainer plate (18) of fixed mounting in first casing (16), water strainer hole (17) that a plurality of rule distributes are seted up on rotation water strainer plate (18), it has seted up blanking mouth (41) to rotate to be close to second box (11) direction one side on water strainer plate (18), the top that rotates water strainer plate (18) is located control shaft (44) and is equipped with rotation driving lever (42) through rotating the cover.

3. The pretreatment device for paper making wastewater according to claim 2, characterized in that: the improved water filter is characterized in that a notch is formed in a shell between the first box body (10) and the second box body (11), a rotating shaft (39) controlled by a control motor (14) is arranged in the notch, a rotating disc (40) is fixedly arranged on the rotating shaft (39) below the rotating water filtering plate (18), a movable shifting plate (38) is arranged on the inner side wall of the second box body (11) above the rotating disc (40), a hydraulic rod (46) is arranged on one side, close to the direction of the discharge hole (15), of the movable shifting plate (38), and an electric hydraulic rod (45) is arranged on the other side of the movable shifting plate (38).

4. The pretreatment device for paper making wastewater according to claim 2, characterized in that: the blanking port (41) is provided with a slide way which faces downwards to the direction of the second box body (11) in an inclined mode.

5. The pretreatment device for paper making wastewater according to claim 3, characterized in that: the compact drainage module comprises a dirt cleaning opening (37) which is formed, a water filtering pressure plate (35) is arranged below the dirt cleaning opening (37) in the second box body (11), and a plurality of drainage small holes which are uniformly distributed are formed in the water filtering pressure plate (35); a water storage tank (34) is arranged below the rotary pressing block (36), a water discharge pipe (30) communicated to the treatment cavity (29) is arranged on the shell of the second box body (11) of the water storage tank (34), and a check valve (33) facing the treatment cavity (29) is arranged in the water discharge pipe (30).

6. The pretreatment device for paper making wastewater according to claim 1, characterized in that: the water filtration pressure plate (35) is located the casing of second box (11) and has been seted up the sliding tray that has the spring, the top of water filtration pressure plate (35) is equipped with (57) dorsad (57) direction, be equipped with on (57) and rotate briquetting (36), (57) are located the casing of second box (11) and are equipped with (58), be equipped with sealed gliding (59) in (58) on (57), (58) are equipped with (56) of communicateing to hydraulic stem (46) in the casing of second box (11).

7. The pretreatment device for paper making wastewater according to claim 1, characterized in that: the coagulant storage tank (12) is provided with a treatment cavity (29) communicated with the treatment cavity (29), the feeding pipe (27) is provided with a sealing sliding groove (52) on the first shell (16), the sliding groove is provided on the first shell (16) below the feeding pipe (27), a floating plate (50) is arranged in the sliding groove, a valve plate (53) in the sealing sliding groove (52) is fixedly arranged on the floating plate (50), and a feeding hole (51) is formed in the valve plate (53).

8. The pretreatment device for paper making wastewater according to claim 1, characterized in that: the defoaming module (21) comprises a sliding part (23), a second shell (47) is arranged on the sliding part (23), a conveying pipe (48) is arranged in the second shell (47), and a plurality of defoaming parts (49) are arranged on the conveying pipe (48); the central point of second casing (47) puts and is equipped with control pump (22), control pump (22) below is equipped with blow off pipe (25), blow off pipe (25) are located and are equipped with sewage pipes (28) in control shaft (44), sewage pipes (28) below is located first casing (16) bottom and is equipped with blowoff valve (26).