Cellulose cooking device for papermaking

Abstract

The utility model relates to the technical field of papermaking, in particular to a cellulose cooking device for papermaking, which comprises a cooking vessel, a feed port arranged at the top of the cooking vessel, a discharge port arranged at the bottom of the cooking vessel, a filter sieve arranged in the cooking vessel, a stirring rod arranged in the cooking vessel, and two groups of cleaning mechanisms arranged on the stirring rod, the lifting assembly is arranged on the digester; the rotating assembly is arranged at the bottom of the digester; according to the utility model, through the arrangement of the rotating assembly, the digester can be driven to turn over up and down through the rotating assembly, so that slurry can be turned over back and forth to form a good circulation capability, and through the arrangement of the lifting assembly at the top of the stirring rod and the arrangement of the cleaning mechanism on the stirring rod, when the slurry is stirred by the stirring rod, the slurry can be cleaned. The lifting assembly drives the stirring rod to move up and down, the cleaning mechanism can move back and forth along the filter sieve and the bottom of the digester, and scaling is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, and particularly relates to a cellulose cooking device for papermaking. Background Art

[0002] A cellulose digester, the main equipment for manufacturing chemical pulp, into which fiber raw materials and chemical agents are added, mixed evenly, and made into pulp through high-temperature and high-pressure treatment. It is divided into two categories: batch type and continuous type. Currently, the pulp digesters used in papermaking generally directly heat chemical agents and fiber raw materials or use flowing chemical agents. The above-mentioned pulp cooking methods cannot ensure sufficient contact between chemical agents and fiber raw materials, cannot form a good cycle, and the filter screen is prone to blockage. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above deficiencies and provide a cellulose cooking device for papermaking.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A cellulose cooking device for papermaking, including a digester, the top of the digester is provided with a feed inlet, the bottom of the digester is provided with a discharge outlet, a filter screen is arranged inside the digester, and a stirring rod is also arranged inside the digester. It further includes:

[0006] Two sets of cleaning mechanisms are arranged on the stirring rod and are used for cleaning the filter screen and the bottom of the digester;

[0007] A lifting component is arranged on the digester and is used for driving the stirring rod to do lifting movement;

[0008] A rotating component is arranged at the bottom of the digester and is used for driving the digester to rotate.

[0009] Further, the cleaning mechanism includes a fixed sleeve fixed on the stirring rod, a sweeper is arranged on the fixed sleeve, slide rails are arranged on the surfaces of the digester and the filter screen, and the sweeper rotates along the slide rails.

[0010] Further, convex blocks are arranged on the fixed sleeve, the sweeper includes two movable rods rotatably arranged on the convex blocks, and cleaning brushes are arranged at the bottoms of the movable rods.

[0011] Further, limiting plates are arranged on both sides of the cleaning brush, limiting grooves are opened on the limiting plates, moving sliders slidably connected to the slide rails are arranged at the bottoms of the limiting plates, and limiting blocks slidably arranged in the limiting grooves are arranged on the cleaning brush.

[0012] Further, the lifting assembly includes two vertical plates fixed to the top of the steamer. A sliding rod is arranged inside the vertical plates. A lifting table is arranged between the two vertical plates. The stirring rod is rotatably connected to the lifting table. Lifting sliders sleeved on the sliding rod are arranged at both ends of the lifting table.

[0013] Further, a fixing plate is also arranged on the steamer. A turntable is rotatably arranged on the fixing plate. A chute is formed on the side wall of the lifting table. A driving block located inside the chute is arranged on the turntable.

[0014] Further, the rotating assembly includes a fixed base arranged at the bottom of the steamer. Support rods are arranged at both ends of the fixed base. A fixed rotating shaft is arranged on the support rods. The steamer is rotatably connected to the support rods through the fixed rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By providing a rotating assembly, the present utility model can drive the steamer to turn up and down through the rotating assembly, so that the slurry can turn back and forth, forming good circulation ability. By providing a lifting assembly at the top of the stirring rod and a cleaning mechanism on the stirring rod, when the stirring rod stirs the slurry, the lifting assembly drives the stirring rod to move up and down. The cleaning mechanism can move back and forth along the filter screen and the bottom of the steamer, preventing scaling and ensuring full contact between the chemical agent and the fiber raw material at the same time. Description of the Drawings

[0017] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is the schematic diagram of the main structure of the present utility model;

[0019] Figure 2 is the schematic diagram of the structure of the cleaning mechanism of the present utility model;

[0020] Figure 3 is the schematic diagram of the structure of the sweeper of the present utility model;

[0021] Figure 4 is the schematic diagram of the structure of the lifting assembly of the present utility model.

[0022] In the figure: 1. Steamer; 11. Feed inlet; 12. Discharge outlet; 2. Filter screen; 3. Stirring rod; 4. Cleaning mechanism; 41. Fixed sleeve; 411. Protrusion; 42. Sweeper; 421. Movable rod; 422. Cleaning brush; 423. Limiting plate; 424. Limiting groove; 425. Limiting block; 426. Moving slider; 43. Slide rail; 5. Lifting assembly; 51. Vertical plate; 52. Slide bar; 53. Lifting table; 531. Chute; 54. Lifting slider; 55. Fixed plate; 56. Turntable; 6. Fixed base; 7. Support rod; 8. Fixed rotating shaft. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] Referring to Figures 1 - 4 As shown, a cellulose cooking device for papermaking includes a steamer 1. A feed inlet 11 is provided at the top of the steamer 1, and a discharge outlet 12 is provided at the bottom of the steamer 1. A filter screen 2 is arranged in the steamer 1 for filtering solid residues in the slurry. A stirring rod 3 is also arranged in the steamer 1, which can stir the slurry to accelerate mixing. It further includes:

[0026] Two groups of cleaning mechanisms 4 are arranged on the stirring rod 3 for cleaning the filter screen 2 and the bottom of the steamer 1. The cleaning mechanism 4 can slide back and forth along the surface of the filter screen 2 and the bottom of the steamer 1 to prevent scaling and avoid blocking the filter holes of the filter screen 2;

[0027] A lifting assembly 5 is arranged on the steamer 1 for driving the stirring rod 3 to make reciprocating lifting movements, and also driving the cleaning mechanism 4 to slide through the lifting assembly 5;

[0028] A rotating assembly is arranged at the bottom of the steamer 1 for driving the steamer 1 to turn up and down, so that the slurry can be turned up and down, which is beneficial to the circulating flow of the slurry.

[0029] In one embodiment, the cleaning mechanism 4 includes a fixed sleeve 41 fixed to the stirring rod 3. A sweeper 42 is arranged on the fixed sleeve 41. Slide rails 43 are arranged on the surfaces of both the cooking vessel 1 and the filter screen 2. The sweeper 42 rotates along the slide rail 43;

[0030] When the stirring rod 3 rotates, the whole can be driven to rotate through the fixed sleeve 41, and the sweeper 42 can rotate along the slide rail 43.

[0031] In one embodiment, a convex block 411 is arranged on the fixed sleeve 41. The sweeper 42 includes two movable rods 421 rotatably arranged on the convex block 411. A cleaning brush 422 is arranged at the bottom of the movable rod 421;

[0032] Since the stirring rod 3 will move up and down under the drive of the lifting assembly 5, when the stirring rod 3 moves down, the two movable rods 421 will be pushed by the fixed sleeve 41 to open to both sides. At this time, the bottom of the filter screen 2 or the cooking vessel 1 can be cleaned by the cleaning brush 422.

[0033] In one embodiment, limiting plates 423 are arranged on both sides of the cleaning brush 422. Limiting grooves 424 are opened on the limiting plates 423. A moving slider 426 slidably connected to the slide rail 43 is arranged at the bottom of the limiting plate 423. A limiting block 425 sliding in the limiting groove 424 is arranged on the cleaning brush 422;

[0034] Since the whole cooking vessel 1 will be turned over up and down, in order to ensure that the cleaning brush 422 can always adhere to the bottom surface, the limiting plate 423 that can only slide along the slide rail 43 is arranged, so that the cleaning brush 422 can only slide along the direction of the limiting groove 424, thereby limiting the cleaning brush 422.

[0035] In one embodiment, the lifting assembly 5 includes two vertical plates 51 fixed to the top of the cooking vessel 1. A slide rod 52 is arranged inside the vertical plates 51. A lifting platform 53 is arranged between the two vertical plates 51. The stirring rod 3 is rotatably connected to the lifting platform 53. Lifting sliders 54 sleeved on the slide rod 52 are arranged at both ends of the lifting platform 53;

[0036] By making the lifting platform 53 move up and down along the slide rod 52, the stirring rod 3 can be pushed to move up and down, thereby driving the cleaning mechanism 4 to move up and down, so that the two movable rods 421 on both sides can be pushed to drive the cleaning brush 422 to slide.

[0037] In one embodiment, a fixed plate 55 is further arranged on the cooking vessel 1. A turntable 56 is rotatably arranged on the fixed plate 55. A motor for driving is arranged on one side of the turntable 56. A chute 531 is opened on the side wall of the lifting platform 53. A driving block sliding in the chute 531 is arranged on the turntable 56 near the arc side;

[0038] The rotation of the turntable 56 can drive the driving block to rotate. The driving block slides in the chute 531, so as to drive the lifting table 53 to move up and down.

[0039] In one embodiment, the rotating assembly includes a fixed base 6 disposed at the bottom of the cooking vessel 1. Support rods 7 are provided at both ends of the fixed base 6. A fixed rotating shaft 8 is provided on the support rod 7. The cooking vessel 1 is rotationally connected to the support rod 7 through the fixed rotating shaft 8;

[0040] A motor for driving is provided on the fixed rotating shaft 8 on one side. In this way, the entire cooking vessel 1 can be driven to rotate by the motor, so that the slurry can be turned over in the cooking vessel 1.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

Claims

1. A cellulose cooking device for papermaking, comprising a cooking vessel (1), wherein a feed inlet (11) is provided at the top of the cooking vessel (1), a discharge outlet (12) is provided at the bottom of the cooking vessel (1), a filter screen (2) is provided inside the cooking vessel (1), and a stirring rod (3) is also provided inside the cooking vessel (1), characterized in that, It further includes: Two sets of cleaning mechanisms (4) are arranged on the stirring rod (3) and are used for cleaning the bottom of the filter screen (2) and the steamer (1); A lifting assembly (5) is arranged on the steamer (1) and is used for driving the stirring rod (3) to perform a lifting motion; A rotating assembly is arranged at the bottom of the steamer (1) and is used for driving the steamer (1) to rotate.

2. The cellulose cooking device for papermaking according to claim 1, wherein, The cleaning mechanism (4) includes a fixed sleeve (41) fixed on the stirring rod (3). A sweeper (42) is arranged on the fixed sleeve (41). Slide rails (43) are arranged on the surfaces of both the steamer (1) and the filter screen (2). The sweeper (42) rotates along the slide rail (43).

3. The cellulose cooking device for papermaking according to claim 2, characterized in that, A convex block (411) is arranged on the fixed sleeve (41). The sweeper (42) includes two movable rods (421) rotatably arranged on the convex block (411). A cleaning brush (422) is arranged at the bottom of the movable rod (421).

4. A cellulose cooking device for papermaking according to claim 3, characterized in that, Limit plates (423) are arranged on both sides of the cleaning brush (422). Limit grooves (424) are formed in the limit plates (423). A moving slider (426) slidably connected to the slide rail (43) is arranged at the bottom of the limit plate (423). A limit block (425) slidably arranged in the limit groove (424) is arranged on the cleaning brush (422).

5. A cellulose cooking device for papermaking according to claim 1, characterized in that, The lifting assembly (5) includes two vertical plates (51) fixed on the top of the steamer (1). A slide rod (52) is arranged inside the vertical plate (51). A lifting platform (53) is arranged between the two vertical plates (51). The stirring rod (3) is rotatably connected to the lifting platform (53). Lifting sliders (54) sleeved on the slide rod (52) are arranged at both ends of the lifting platform (53).

6. The cellulose cooking device for papermaking according to claim 5, characterized in that, A fixing plate (55) is further arranged on the steamer (1). A turntable (56) is rotatably arranged on the fixing plate (55). A chute (531) is formed in the side wall of the lifting platform (53). A driving block slidably arranged in the chute (531) is arranged on the turntable (56).

7. A cellulose cooking device for papermaking according to claim 1, characterized in that, The rotating assembly includes a fixed base (6) arranged at the bottom of the steamer (1). Support rods (7) are arranged at both ends of the fixed base (6). A fixed rotating shaft (8) is arranged on the support rod (7). The steamer (1) is rotatably connected to the support rod (7) through the fixed rotating shaft (8).

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