Beating machine for paper pulp production

Abstract

The utility model discloses a beater for paper pulp production, which relates to the technical field of papermaking equipment and comprises a barrel, a rotating shaft rotatably arranged in the barrel, a plurality of movable stirring rods fixedly arranged on the side wall of the rotating shaft, a feed inlet arranged on the upper wall of the barrel, and a crushing disc fixedly arranged on the rotating shaft in the barrel. Paper pulp raw materials fed through the feeding port can fall on the crushing disc, a plurality of movable crushing rods are fixedly arranged on the upper surface of the crushing disc, a plurality of fixed crushing rods staggered with the movable crushing rods are fixedly arranged on the inner side of the upper wall of the barrel, a gap is reserved between the crushing disc and the side wall of the barrel, and a pulp discharging pipe is connected to the bottom of the barrel. Paper pulp raw materials can be crushed through the movable crushing rods on the crushing disc and the fixed crushing rods in the cylinder body, pre-crushing of the paper pulp raw materials is achieved, the situation that the paper pulp raw materials can be crushed through long-time stirring is avoided, and the crushed paper pulp raw materials can enter a stirring area in a more dispersed mode through rotation of the crushing disc.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically a pulping machine for pulp production. Background Technology

[0002] In the field of papermaking and pulping, pulp raw materials need to be beaten, crushed and mixed, and beating machines are used in the beating and crushing processes.

[0003] For example, the utility model patent with announcement number CN216156246U discloses a pulping device for papermaking, including a support base, a pulping tank and a filter assembly. The pulping tank is fixedly connected to the filter assembly through a feed pipe. The filter assembly includes a filter box with a box cover at the top and a filter screen in the inner cavity of the filter box. The cross-section of the filter screen is an inverted V shape. Limiting support strips are provided at the bottom of both ends of the filter screen. The side walls of the two limiting support strips are fixedly connected to the inner walls of the two sides of the filter box. A drain pipe is fixedly inserted and connected to the bottom of the outer wall of the filter box.

[0004] However, the existing pulping machine cannot pre-crush the pulp raw material when it enters the cylinder. Large pulp raw materials require a long time to be stirred to become pulp. At the same time, there are often dead zones in the cylinder, and pulp blocks in the dead zones cannot participate in the stirring, which reduces the stirring quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pulping machine for pulp production, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pulp beater for pulp production, comprising a cylinder, a rotating shaft rotatably disposed within the cylinder, a plurality of movable stirring rods fixedly disposed on the side wall of the rotating shaft, a feed inlet on the upper wall of the cylinder, a crushing disc fixedly disposed within the cylinder on the rotating shaft, pulp raw materials fed through the feed inlet falling onto the crushing disc, a plurality of movable crushing rods fixedly disposed on the upper surface of the crushing disc, a plurality of fixed crushing rods offset from the movable crushing rods fixedly disposed on the inner side of the upper wall of the cylinder, a gap being left between the crushing disc and the side wall of the cylinder, and a pulp discharge pipe connected to the bottom of the cylinder.

[0007] Preferably, a baffle is fixedly installed at the lower part of the cylinder, a central cylinder is installed on the baffle, a propeller is fixedly installed at the bottom of the rotating shaft and inside the central cylinder, and multiple return ports are opened at the edge of the baffle.

[0008] Preferably, the partition has a bucket-shaped structure.

[0009] Preferably, a plurality of fixed stirring rods are fixedly installed on the inner side wall of the cylinder.

[0010] Preferably, a motor is fixedly installed on the outer side of the upper part of the cylinder, and the rotating shaft is connected to the power output end of the motor.

[0011] Preferably, a water inlet pipe is connected to one side of the upper part of the cylinder.

[0012] Beneficial effects

[0013] This utility model provides a pulping machine for pulp production, which has the following beneficial effects: the pulp raw materials can be crushed by the moving crushing rod on the crushing disc and the fixed crushing rod in the cylinder, realizing the pre-crushing of the pulp raw materials and avoiding the need for long-term stirring to crush the pulp raw materials. The rotation of the crushing disc can also make the crushed pulp raw materials more dispersed into the stirring zone. The rotation of the propeller can make the pulp at the bottom of the cylinder sprayed back to the top of the cylinder through the return port, realizing the vertical flow of the pulp, making the flow pattern of the pulp in the stirring zone more complex, reducing dead zones, and preventing the heavier parts of the pulp from settling to the bottom, thus improving the stirring effect. Attached Figure Description

[0014] Figure 1 This is a front view of the internal structure of this utility model;

[0015] Figure 2 This is a top view of the breaker disc.

[0016] In the diagram: 1. Cylinder; 2. Rotating shaft; 3. Moving stirring rod; 4. Crushing disc; 5. Moving crushing rod; 6. Fixed crushing rod; 7. Baffle plate; 8. Central cylinder; 9. Propeller; 10. Return port; 11. Feed inlet; 12. Slurry discharge pipe; 13. Motor; 14. Water inlet pipe; 15. Fixed stirring rod. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figures 1-2This utility model provides a technical solution: a pulping machine for pulp production, including a cylinder 1, a rotating shaft 2 rotatably disposed inside the cylinder 1, multiple movable stirring rods 3 fixedly disposed on the side wall of the rotating shaft 2, a feed inlet 11 opened on the upper wall of the cylinder 1, and a crushing disc 4 fixedly disposed inside the cylinder 1 on the rotating shaft 2. Pulp raw materials fed into the cylinder 1 through the feed inlet 11 can fall onto the crushing disc 4. Multiple movable crushing rods 5 are fixedly disposed on the upper surface of the crushing disc 4, and multiple fixed crushing rods 6 are fixedly disposed on the inner side of the upper wall of the cylinder 1, which are offset from the movable crushing rods 5. The rotating shaft 2 drives the crushing disc 4 to rotate, which can move the movable crushing rods 5. The movable crushing rods 5 and the fixed crushing rods 6 can crush the pulp raw materials fed into the feed inlet 11. A gap is left between the crushing disc 4 and the side wall of the cylinder 1. The crushed pulp raw materials fall through the gap into the mixing zone below under the action of centrifugal force of the crushing disc 4. The rotation of the crushing disc 4 can also make the pulp raw materials enter more dispersedly. In the lower mixing zone, a slurry discharge pipe 12 is connected to the bottom of the cylinder 1; a baffle 7 is fixedly installed inside the lower part of the cylinder 1, and a central cylinder 8 is installed on the baffle 7. A propeller 9 is fixedly installed at the bottom of the rotating shaft 2 and inside the central cylinder 8. Multiple return ports 10 are opened at the edge of the baffle 7. The rotating shaft 2 can drive the propeller 9 to rotate. When the propeller 9 rotates, it can transport the slurry above the baffle 7 to the bottom of the baffle 7. After the internal pressure of the slurry below the baffle 7 increases, it will be sprayed back to the top of the baffle 7 through the return ports 10, making the liquid flow pattern in the mixing zone more complex, while preventing the heavier part of the slurry from settling to the bottom, thus improving the mixing effect; the baffle 7 has a bucket-shaped structure to facilitate the emptying of the slurry in the cylinder 1; multiple fixed stirring rods 15 are fixedly installed on the inner side wall of the cylinder 1 to improve the mixing effect; a motor 13 is fixedly installed on the upper outer side of the cylinder 1, and the rotating shaft 2 is connected to the power output end of the motor 13; a water inlet pipe 14 is connected to one side of the upper part of the cylinder 1.

[0019] The working principle and usage process of this utility model are as follows: During use, water can be filled into the cylinder 1 through the water inlet pipe 14. Starting the motor 13 can rotate the rotating shaft 2. When the rotating shaft 2 rotates, the crushing disc 4, the moving stirring rod 3, and the propeller 9 rotate simultaneously, and the pulp raw material is put into the cylinder 1 through the feed port 11. When the pulp raw material comes into contact with the crushing disc 4, the moving crushing rod 5 on the crushing disc 4 and the fixed crushing rod 6 in the cylinder 1 can crush the pulp raw material. The crushed pulp raw material falls down into the mixing zone through the gap at the edge of the crushing disc 4, avoiding the need for a long time to crush the pulp raw material. The rotation of the crushing disc 4 can also make the crushed pulp raw material enter the mixing zone more dispersed. The moving stirring rod 3 can mix the pulp raw material with water. The rotation of the propeller 9 can make the pulp at the bottom of the cylinder 1 spray back to the top of the cylinder 1 through the return port 10, realizing the vertical flow of the pulp, making the flow mode of the pulp in the mixing zone more complex, reducing the dead zone of flow, and preventing the heavier part of the pulp from sinking to the bottom, thus improving the mixing effect.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulp mill beater characterized in that, The utility model relates to a paper pulp stirring and crushing device, including cylinder (1), the rotating shaft (2) is arranged in cylinder (1), the rotating shaft (2) side wall is fixedly provided with a plurality of dynamic stirring rod (3), the cylinder (1) upper wall is opened with feed inlet (11), the crushing disc (4) is fixedly arranged in the rotating shaft (2) in cylinder (1) inside, and the paper pulp raw material that is thrown into through feed inlet (11) can fall on crushing disc (4), the upper surface of crushing disc (4) is fixedly provided with a plurality of dynamic crushing rod (5), the upper wall inboard of cylinder (1) is fixedly provided with a plurality of with dynamic crushing rod (5) staggered arrangement fixed crushing rod (6), and the gap is left between crushing disc (4) and cylinder (1) side wall, and the bottom of cylinder (1) is connected with pulp discharge pipe (12).

2. A beater for pulp production according to claim 1, characterized in that The bottom of rotating shaft (2) and located in center cylinder (8) are fixedly provided with propeller (9).

3. A beater for pulp production according to claim 2, characterized in that The partition (7) is a bucket type structure.

4. A beater for pulp production according to claim 1, characterized in that The inboard of cylinder (1) is fixedly provided with a plurality of fixed stirring rod (15).

5. A beater for pulp production according to claim 1, characterized in that The upper outside of cylinder (1) is fixedly provided with motor (13), and the rotating shaft (2) is connected with the power output end of motor (13).

6. A beater for pulp production according to claim 1, characterized in that The upper side of cylinder (1) is connected with water inlet pipe (14).

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