CN113863042B

CN113863042B - A concentrated machine of many discs for production of core thick liquid

Info

Publication number: CN113863042B
Application number: CN202111238389.XA
Authority: CN
Inventors: 俞解明; 胡德水; 孙利群; 俞熠昕
Original assignee: Zhejiang Huatian Renewable Resources Co ltd
Current assignee: Zhejiang Huatian Renewable Resources Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-08-02
Anticipated expiration: 2041-10-25
Also published as: CN113863042A

Abstract

The invention discloses a multi-disc thickener for core pulp production, which comprises a thickener body and a machine cover, wherein a first water inlet pipe is fixed outside the machine cover, the other end of the first water inlet pipe penetrates through the machine cover and is fixedly connected with a first spray pipe, a first fan-shaped spray head is fixed at the bottom of the first spray pipe, a second water inlet pipe is fixed outside the machine cover, a two-way joint is fixed at the other end of the second water inlet pipe, one end of the two-way joint, far away from the second water inlet pipe, is fixedly connected with a third water inlet pipe, one end of the third water inlet pipe also penetrates through the side wall of the machine cover and is fixedly connected with a third spray pipe, a plurality of second connecting plates are fixed at the bottom of the third spray pipe, wide grooves communicated with the interior of the third spray pipe are formed in the second connecting plates, sliding grooves are formed in the side walls of the wide grooves, first trapezoidal scraper plates are arranged in the sliding mode, a plurality of water outlet holes are formed in the first trapezoidal scraper plates, and the problems that the existing thickener is poor in the non-thorough cleaning effect when the pulp stripping treatment is carried out and the existing thickener are solved, the existing thickener is poor in the transportation effect due to the adoption of a spiral feeder, and part of the existing thickener is poor in the situation that part of the existing thickener, and part of fibers remain at the bottom of the existing thickener The part cannot be transported out.

Description

A concentrated machine of many discs for production of core thick liquid

Technical Field

The invention relates to the technical field of papermaking equipment, in particular to a multi-disc thickener for core pulp production.

Background

The multi-disc thickener is important equipment for pulp concentration treatment in the papermaking and pulping industry, utilizes vacuum generated by a filtrate water leg as a filtering driving force, enables a filtering disc on a rotor shaft to be in four working states of natural filtering, vacuum filtering, a pulp peeling area and a cleaning area through a distribution valve, and sequentially circulates back and forth to achieve the effect of pulp concentration, wherein the pulp inlet concentration is 0.5-1.2% generally, and the pulp outlet concentration is 8-12%.

The existing multi-disc thickener usually adopts a spiral feeder when treating and conveying fibers on a filter disc, and conveys the fibers out of the thickener by utilizing the rotation of the spiral feeder, but the existing spiral feeder has poor conveying effect and part of the fibers are remained at the bottom and cannot be conveyed out; the existing thickener only adopts a spray pipe to clean a filter disc when carrying out pulp stripping treatment, and the cleaning effect is poor.

Disclosure of Invention

The invention aims to provide a multi-disc thickener for core pulp production, which solves the problems that the prior thickener has poor incomplete cleaning effect during pulp stripping treatment, has poor transportation effect by adopting a spiral feeder, and can not transport part of fibers left at the bottom.

To further solve the problems to be solved by the present invention

The technical purpose of the invention is realized by the following technical scheme:

a multi-disc thickener for core pulp production comprises a thickener body and a cover arranged at the top of the thickener body, wherein a hollow shaft is installed in the thickener body, a driving assembly used for driving the hollow shaft to rotate is arranged on the outer wall of the thickener body, the hollow shaft is of a five-pointed star structure, a plurality of first connecting plates are fixed on each edge of the hollow shaft, a plurality of slots are formed in the top of each first connecting plate, a plurality of filter discs are arranged in the slots, a first water inlet pipe is fixed outside the cover, a first control valve is fixed at one end of the first water inlet pipe, a first spray pipe penetrates through the cover and is fixedly connected with the first water inlet pipe, the first spray pipe is fixed in the cover, a first fan-shaped spray head is fixed at the bottom of the first spray pipe in an inclined manner, the spray position of the first fan-shaped spray head faces the filter discs all the time, and a second water inlet pipe is fixed outside the cover, one end of the second water inlet pipe is fixedly provided with a second control valve, the other end of the second water inlet pipe is fixedly provided with a two-way connector, one end of the two-way connector far away from the second water inlet pipe is fixedly connected with a third water inlet pipe, one of the water inlet pipes III penetrates through the side wall of the hood and is fixedly connected with a second spraying pipe, a plurality of second spraying heads are vertically fixed at the bottom of the second spraying pipe, the second spray header is horizontally arranged above the filter disc, one end of the other third water inlet pipe also penetrates through the side wall of the hood and is fixedly connected with a third spray pipe, a plurality of second connecting plates are fixed at the bottom of the third spray pipe, wide grooves communicated with the inner part of the third spray pipe are formed in the second connecting plates, the fiber conveying device is characterized in that a sliding groove is formed in the side wall of the wide groove, a first trapezoidal scraper is arranged in the sliding groove in a sliding mode, a plurality of water outlet holes are formed in the first trapezoidal scraper, and a feeding device for conveying fibers is arranged in the hollow shaft.

Preferably, the feeding device comprises a material receiving box, two rotating shafts and a conveyor belt, the material receiving box is of a cylindrical structure, the material receiving box is rotatably arranged in the hollow shaft, outwards-turned plates are symmetrically fixed at the top of the material receiving box, one end of the material receiving box penetrates through the hollow shaft, a discharging conveying box is fixed on the side wall of the material receiving box, one end of the discharging conveying box penetrates through the thickener body, a discharging pipe is fixed at the bottom of the discharging conveying box and is communicated with the inside of the discharging conveying box, the inside of the material receiving box is of a square structure, the material receiving box is communicated with the discharging conveying box, one side of the rotating shaft is rotatably arranged in the material receiving box, the other side of the rotating shaft is rotatably arranged in the discharging conveying box, the conveyor belt is arranged between the two rotating shafts, a plurality of water filtering holes are formed in the conveyor belt, and the two rotating shafts are connected through the conveyor belt, the discharging device is characterized in that a first driving motor is fixed on the outer wall of the discharging conveying box, an output shaft of the first driving motor penetrates through the discharging conveying box and is fixed with a rotating shaft, a second scraper is fixed in the discharging conveying box, one end of the second scraper is in contact with the side wall of the bottom of the conveying belt, and the other end of the second scraper is fixed on the side wall of the top of the discharging pipe.

Preferably, the driving assembly comprises a second driving motor, a driving wheel and a driven wheel, the second driving motor is fixed on the thickener body, the driving wheel is fixed on an output shaft of the driving motor, a connecting column is fixed at one end of the hollow shaft, the driven wheel is fixed on the connecting column, a belt is arranged between the driving wheel and the driven wheel, and the driving wheel and the driven wheel are connected through the belt.

Preferably, the filter disc is composed of a plurality of hollow vertically distributed discs, the discs are of a double-layer structure, and filter cloth is arranged in each disc.

Preferably, a booster pump is further arranged in the water inlet pipe II.

Preferably, a controller is fixed to the thickener body.

Has the advantages that: 1. the original net washing spray head is changed into a fan-shaped spray head, so that the spray area of the spray head is wider, and the filter disc is more thoroughly cleaned;

2. the bottom of the pulp stripping pipeline is fixedly connected with the connecting plate II, the pressure of water flow is increased through the booster pump, so that the first scraper can be pushed to extend out, the first scraper can be used for scraping fibers on the disc, and the water flow is sprayed out during scraping so that the fibers on the disc can be better treated;

3. improve into the conveyer belt structure with feed screw and make the fibre of scraping down drop to the conveyer belt between thereby can direct fibre conveying goes out the thickener body, thereby sets up scraper blade two and be convenient for strike off the remaining fibre of conveyer belt bottom discharging pipe and conveyer belt.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic side view for showing an embodiment;

FIG. 3 is a schematic diagram of an embodiment of a thickener body;

FIG. 4 is a schematic view of a feeding device according to an embodiment.

Reference numerals: 1. a thickener body; 2. a hood; 3. a hollow shaft; 4. a drive assembly; 5. a first connecting plate; 6. a slot; 7. a filter disc; 8. a first water inlet pipe; 9. a first control valve; 10. a first spray pipe; 11. a first fan-shaped spray header; 12. a water inlet pipe II; 13. a second control valve; 14. a two-way joint; 15. a third water inlet pipe; 16. a second spray pipe; 17. a second spray header; 18. a third spray pipe; 19. a second connecting plate; 20. a wide groove; 21. a first trapezoidal scraper; 22. a water outlet hole; 23. a feeding device; 24. a material receiving box; 25. a rotating shaft; 27. A conveyor belt; 28. an outer turning plate; 29. a discharge conveying box; 30. a discharge pipe; 31. water filtering holes; 32. driving a motor I; 33. a second scraper plate; 34. a second driving motor; 35. a driving wheel; 36. a driven wheel; 37. connecting columns; 38. a belt; 39. a disk; 40. filtering cloth; 41. a booster pump; 42. a controller; 43. a chute.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

Referring to fig. 1 to 4, a multi-disc thickener for core pulp production comprises a thickener body 1 and a hood 2 arranged at the top of the thickener body 1, wherein a hollow shaft 3 is installed in the thickener body 1, a driving component 4 for driving the hollow shaft 3 to rotate is arranged on the outer wall of the thickener body 1, when the thickener body 1 needs to work, the hollow shaft 3 is driven to rotate through the driving component 4, and the working liquid level is 200-300 mm higher than the center of the hollow shaft 3.

Referring to fig. 1, the driving assembly 4 includes a second driving motor 34, a driving wheel 35, and a driven wheel 36, the second driving motor 34 is fixed on the thickener body 1, a controller 42 is fixed on the thickener body 1, the driving motor is started by the controller 42, the driving wheel 35 is fixed on the output shaft of the driving motor, the driving wheel 35 is driven to rotate by the driving motor, one end of the hollow shaft 3 is fixed with a connecting column 37, the driven wheel 36 is fixed on the connecting column 37, a belt 38 is arranged between the driving wheel 35 and the driven wheel 36, the driving wheel 35 and the driven wheel 36 are connected by the belt 38, the belt 38 is driven by the driving wheel 35 to transmit, the driven wheel 36 is driven by the belt 38 to rotate, the driven wheel 36 drives the connecting column 37 to rotate, and the connecting column 37 can drive the hollow shaft 3 to rotate, so that the hollow shaft 3 can start to work.

Referring to fig. 2, the hollow shaft 3 is of a five-pointed star structure, a plurality of connecting plates 5 are fixed on each edge of the hollow shaft 3, the connecting plates 5 are driven to rotate by the hollow shaft 3, a plurality of slots 6 are formed in the tops of the connecting plates 5, a plurality of filter discs 7 are arranged in the slots 6, the filter discs 7 are formed by a plurality of hollow discs 39 which are vertically distributed, the discs 39 are of a double-layer structure, filter cloth 40 is arranged in each disc 39, the discs 39 are aligned to the slots 6 and are inserted into the slots 6 one by one, filtrate is filtered by each disc 39 and the filter cloth 40, fibers in the filtrate can be attached to the discs 39 in the filtering process, and fiber layers with the thickness of 5-8mm can be attached to the discs 39.

Referring to fig. 3, a second water inlet pipe 12 is fixed outside the hood 2, a second control valve 13 is fixed at one end of the second water inlet pipe 12, when the filtrate is filtered and the fiber layer on the disk 39 needs to be subjected to the pulp stripping treatment, the second control valve 13 is started first, clean water enters the second water inlet pipe 12, a booster pump 41 is further arranged in the second water inlet pipe 12, the impact force of the water flow is increased through the booster pump 41, so that better cleaning is facilitated, a double-way joint 14 is fixed at the other end of the second water inlet pipe 12, a third water inlet pipe 15 is fixedly connected at one end of the double-way joint 14 far away from the second water inlet pipe 12, the clean water enters the third water inlet pipes 15 through the double-way joint 14, one third water inlet pipe 15 penetrates through the side wall of the hood 2 and is fixedly connected with a second shower pipe 16, the water enters the second shower pipe 16 through the third water inlet pipe 15, a plurality of second shower heads 17 are vertically fixed at the bottom of the second shower pipe 16, the shower heads 17 are horizontally arranged above the filter disk 7, the water flow enters the second spray header 17 through the second spray pipe 16 and is sprayed out through the second spray header 17, so that the fiber layer attached to the disk 39 is washed.

Referring to fig. 3, one end of another water inlet pipe three 15 also penetrates through the side wall of the hood 2 and is fixedly connected with a spray pipe three 18, water flows into the spray pipe three 18, a plurality of connecting plates one 5 are fixed at the bottom of the spray pipe three 18, wide grooves 20 communicated with the interior of the spray pipe three 18 are formed in the connecting plates one 5, the water flows in the spray pipe three 18 flow into the wide grooves 20, sliding grooves 43 are formed in the side walls of the wide grooves 20, trapezoidal scraping plates one 21 are arranged in the sliding grooves 43 in a sliding mode, the trapezoidal scraping plates one 21 are pushed to slide in the sliding grooves 43 through impact force of the water flows, the trapezoidal scraping plates one 21 can be pushed to move in the direction of the disks 39 and contact with the fiber layers on the disks 39, the fiber layers are hung from the disks 39 through rotation of the disks 39, a plurality of water outlet holes 22 are formed in the trapezoidal scraping plates one 21, the water flows can be discharged through the water outlet holes 22, the trapezoidal scraping plates 39 can be cleaned while the fiber layers are scraped through the spray heads two 17 The first plate 21 can thus hang down the fibre mat more quickly.

Referring to fig. 3, a first water inlet pipe 8 is fixed outside a hood 2, a first control valve 9 is fixed at one end of the first water inlet pipe 8, when a fiber layer is hung down and then the disk 39 is washed, the first control valve 9 is started to enable water flow to be discharged into the first water inlet pipe 8, the other end of the first water inlet pipe 8 penetrates through the hood 2 and is fixedly connected with a first spray pipe 10, the first spray pipe 10 is fixed in the hood 2, the water flow enters the first spray pipe 10 through the first water inlet pipe 8, a first fan-shaped spray head 11 is fixed at the bottom of the first spray pipe 10 in an inclined mode and is finally sprayed out through the first fan-shaped spray head 11, the spray position of the first fan-shaped spray head 11 always faces a filter disk 7, and the first fan-shaped spray head 11 is provided with one to thoroughly clean the fiber layer on the residual disk 39.

Referring to fig. 4, a feeding device 23 for conveying fibers is arranged in the hollow shaft 3, the feeding device 23 is positioned under the trapezoid scraper blade 21, the fibers scraped by the trapezoid scraper blade 21 fall onto the feeding device 23, the fibers are sent out of the thickener body 1 through the feeding device 23, the feeding device 23 comprises a receiving box 24, two rotating shafts 25 and a conveyor belt 27, the receiving box 24 is of a cylindrical structure, the receiving box 24 is rotatably arranged in the hollow shaft 3, outer turning plates 28 are symmetrically fixed on the top of the receiving box 24, the falling fibers can be received by the outer turning plates 28, one end of the receiving box 24 penetrates through the hollow shaft 3, a discharging conveying box 29 is fixed on the side wall of the receiving box 24, one end of the discharging conveying box 29 penetrates through the thickener body 1, a discharging pipe 30 is communicated with the inside of the discharging thickener conveying box 29, the inside of the receiving box 24 is of a square structure, and the receiving box 24 is communicated with the discharging conveying box 29, one side rotating shaft 25 is rotatably arranged in the material receiving box 24, the other side rotating shaft 25 is rotatably arranged in the discharging conveying box 29, the conveying belt 27 is arranged between the two rotating shafts 25, a plurality of water filtering holes 31 are formed in the conveying belt 27, the two rotating shafts 25 are connected through the conveying belt 27, a first driving motor 32 is fixed on the outer wall of the discharging conveying box 29, the first driving motor 32 is started through a controller 42, an output shaft of the first driving motor 32 penetrates through the discharging conveying box 29 and is fixed with the rotating shafts 25, the rotating shafts 25 are driven to rotate through the first driving motor 32, the conveying belt 27 is driven to convey through the rotating shafts 25, the rotating shaft 25 on the other side is driven to rotate through the conveying belt 27, so that fibers falling onto the conveying belt 27 can be conveyed, the continuous conveying of the conveying belt 27 is conveyed into the discharging conveying box 29 from the fibers, a discharging pipe 30 is fixed at the bottom of the discharging conveying box 29, thereby can discharge in dropping discharging pipe 30 at last, it is fixed with two scraper blades 33 to unload conveying box 29 internal fixation, the one end and the contact of conveyer belt 27 bottom lateral wall of two scraper blades 33, the other end of two scraper blades 33 is fixed on the top lateral wall of discharging pipe 30, thereby set up two scraper blades 33 in discharging pipe 30 and conveyer belt 27 bottom and be convenient for strike off the remaining fibre of conveyer belt 27, a plurality of drainage holes 31 have been seted up on the conveyer belt 27, make through drainage holes 31 and remove the washing water that falls into on conveyer belt 27 with the fibre and can discharge.

Claims

1. A multi-disc thickener for core pulp production comprises a thickener body (1) and a hood (2) arranged at the top of the thickener body (1), and is characterized in that a hollow shaft (3) is installed in the thickener body (1), a driving assembly (4) used for driving the hollow shaft (3) to rotate is arranged on the outer wall of the thickener body (1), the hollow shaft (3) is of a five-pointed star structure, a plurality of first connecting plates (5) are fixed on each edge of the hollow shaft (3), a plurality of slots (6) are formed in the tops of the first connecting plates (5), a plurality of filter discs (7) are arranged in the slots (6), a first inlet pipe (8) is fixed outside the hood (2), a first control valve (9) is fixed at one end of the first inlet pipe (8), the other end of the first inlet pipe (8) penetrates through the hood (2) and is fixedly connected with a first spray pipe (10), the utility model discloses a fan-shaped spray head, including aircraft bonnet, shower one (10) bottom is the slope form and is fixed with fan-shaped spray head (11), the department of spraying of fan-shaped spray head (11) is facing to filter disc (7) all the time, aircraft bonnet (2) outer still is fixed with inlet tube two (12), the one end of inlet tube two (12) is fixed with control valve two (13), the other end of inlet tube two (12) is fixed with bi-pass joint (14), the one end fixedly connected with of inlet tube two (12) is kept away from in bi-pass joint (14) has two inlet tubes three (15), one of them inlet tube three (15) run through the lateral wall and the fixedly connected with shower two (16) of aircraft bonnet (2), the bottom vertical fixation of shower two (16) has a plurality of spray head two (17), shower two (17) levels set up the top in filter disc (7), one end of the other water inlet pipe III (15) also penetrates through the side wall of the hood (2) and is fixedly connected with a spray pipe III (18), a plurality of connecting plates II (19) are fixed at the bottoms of the spray pipe III (18), wide grooves (20) communicated with the interiors of the spray pipe III (18) are formed in the connecting plates II (19), sliding grooves (43) are formed in the side walls of the wide grooves (20), trapezoidal scraping plates I (21) are arranged in the sliding grooves (43) in a sliding mode, a plurality of water outlet holes (22) are formed in the trapezoidal scraping plates I (21), and a feeding device (23) used for conveying fibers is arranged in the hollow shaft (3).

2. The multi-disc thickener for core pulp production according to claim 1, wherein the feeding device (23) comprises a material receiving box (24), two rotating shafts (25) and a conveyor belt (27), the material receiving box (24) is of a cylindrical structure, the material receiving box (24) is rotatably arranged in a hollow shaft (3), outer turning plates (28) are symmetrically fixed at the top of the material receiving box (24), one end of the material receiving box (24) penetrates through the hollow shaft (3), a discharging conveying box (29) is fixed on the side wall of the material receiving box (24), one end of the discharging conveying box (29) penetrates through the thickener body (1), a discharging pipe (30) is fixed at the bottom of the discharging conveying box (29), the discharging pipe (30) is communicated with the inside of the discharging conveying box (29), the inside of the material receiving box (24) is of a square structure, and the material receiving box (24) is communicated with the discharging conveying box (29), one side axis of rotation (25) rotate to set up in connecing workbin (24), the opposite side axis of rotation (25) are rotated and are set up in transport case (29) of unloading, conveyer belt (27) set up between two axis of rotation (25), a plurality of drainage holes (31) have been seted up on conveyer belt (27), two axis of rotation (25) are connected through conveyer belt (27), be fixed with driving motor (32) on the outer wall of transport case (29) of unloading, the output shaft of driving motor (32) runs through transport case (29) of unloading and is fixed with axis of rotation (25), the transport case (29) internal fixation of unloading has two scrapers (33), the one end and the contact of conveyer belt (27) bottom lateral wall of two scrapers (33), the other end of two scrapers (33) is fixed on the top lateral wall of discharging pipe (30).

3. The multi-disc thickener for core pulp production as claimed in claim 2, wherein the driving assembly (4) comprises a second driving motor (34), a driving wheel (35) and a driven wheel (36), the second driving motor (34) is fixed on the thickener body (1), the driving wheel (35) is fixed on an output shaft of the driving motor, one end of the hollow shaft (3) is fixed with a connecting column (37), the driven wheel (36) is fixed on the connecting column (37), a belt (38) is arranged between the driving wheel (35) and the driven wheel (36), and the driving wheel (35) and the driven wheel (36) are connected through the belt (38).

4. A multi-disc thickener for the production of core pulp according to claim 3, wherein the filter disc (7) consists of a number of hollow vertically distributed discs (39), the discs (39) being of a double-layered construction, and wherein the discs (39) are provided with filter cloth (40).

5. A multi-disc thickener for the production of core pulp according to claim 4 wherein a booster pump (41) is also arranged in the inlet pipe two (12).

6. A multi-disc thickener for the production of core pulp according to claim 5 wherein a controller (42) is fixed to the thickener body (1).