Double-disc pulping device

Abstract

The utility model discloses a double-disc pulping device which comprises a pulping tank, an upper grinding disc and a lower grinding disc which rotate horizontally are arranged in the pulping tank, the upper grinding disc is located at the upper end of the lower grinding disc, a vertical upper rotating shaft is fixedly arranged in the center of the upper end of the upper grinding disc, and the upper rotating shaft is rotationally installed at the upper end of the pulping tank. A vertical lower rotating shaft is fixedly arranged at the center of the lower end of the lower grinding disc and is rotationally mounted at the lower end of the pulping tank; the upper end of the upper rotating shaft upwards extends out of the pulping tank, a feeding hole is vertically formed in the upper rotating shaft in a penetrating mode, the lower end of the feeding hole penetrates through the upper grinding disc, a feeding hopper is arranged at the upper end of the pulping tank through a support, a feeding pipe extending into the inner hole is arranged at the lower end of the feeding hopper, and a discharging pipe is arranged at the lower end of the pulping tank; the upper rotating shaft and the lower rotating shaft are driven by the driving mechanism to rotate reversely, under the condition that the rotating speed of the upper grinding disc and the rotating speed of the lower grinding disc are fixed, the relative rotating speed between the upper grinding disc and the lower grinding disc is increased through reverse rotation, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulping, and particularly relates to a double-disc pulping device. Background Art

[0002] When preparing fiber pulp, it is necessary to grind the fiber pulp to grind fine the large particles and clusters in the fiber pulp, so that the concentration of the fiber pulp is more uniform. In the existing pulping devices, usually only one grinding disc rotates. When the rotation speed of the grinding disc is fixed, the rotation of one grinding disc will reduce the pulping efficiency. Summary of the Utility Model

[0003] In order to solve the deficiencies in the above-mentioned prior art, the utility model proposes a double-disc pulping device.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0004]

[0005] A double-disc pulping device includes a pulping tank. A horizontally rotating upper grinding disc and a lower grinding disc are arranged in the pulping tank. The upper grinding disc is located above the lower grinding disc. A vertical upper rotating shaft is fixedly arranged at the center of the upper end of the upper grinding disc. The upper rotating shaft is rotatably installed at the upper end of the pulping tank. A vertical lower rotating shaft is fixedly arranged at the center of the lower end of the lower grinding disc. The lower rotating shaft is rotatably installed at the lower end of the pulping tank.

[0006] The upper end of the upper rotating shaft extends upward out of the pulping tank. A feed hole is vertically penetrated through the upper rotating shaft. The lower end of the feed hole passes through the upper grinding disc. A feed hopper is arranged at the upper end of the pulping tank through a bracket. The lower end of the feed hopper is provided with a feed pipe extending into the inner hole. A discharge pipe is arranged at the lower end of the pulping tank.

[0005]

[0007] The upper rotating shaft and the lower rotating shaft are driven by a driving mechanism to rotate in opposite directions.

[0008] In a preferred technical solution, the driving mechanism includes a first synchronous pulley, which is fixedly arranged at the upper end of the upper rotating shaft. A vertical rotating rod is arranged on one side of the pulping tank. The rotating rod is rotatably installed on the pulping tank. A second synchronous pulley corresponding to the first synchronous pulley is fixedly arranged on the rotating rod. The first synchronous pulley and the second synchronous pulley are connected by a first synchronous belt. A rotating third synchronous pulley is installed at the lower end of the pulping tank. A fourth synchronous pulley corresponding to the third synchronous pulley is fixedly arranged on the rotating rod. The third synchronous pulley and the fourth synchronous pulley are connected by a second synchronous belt. A first gear arranged coaxially is fixedly arranged on the third synchronous pulley. The lower end of the lower rotating shaft extends downward out of the pulping tank. A second gear meshing with the first gear is fixedly arranged at the lower end of the lower rotating shaft. A worm gear is fixedly arranged on the rotating rod. A motor is installed on one side of the pulping tank through a connecting frame. A worm meshing with the worm gear is arranged at the output end of the motor.

[0006]

[0009] Preferably, the height of the bottom inside the pulping tank gradually decreases from the center to the periphery, and the discharge pipe is connected to the lowest position of the bottom inside the pulping tank.

[0010] Preferably, the feed pipe is rigidly arranged, and after the feed pipe extends into the feed hole, it is connected to the upper end of the upper rotating shaft through a shaft seal structure.

[0011] Preferably, a vibrator is connected to the outer wall of the feed hopper.

[0012] Compared with the prior art, the beneficial effects are as follows:

[0013] The utility model has a simple structure and is convenient to use. The pulp is conveyed from the feed hopper along the feed hole to the space between the upper grinding disc and the lower grinding disc for grinding. The upper grinding disc and the lower grinding disc rotate in opposite directions driven by the driving mechanism. Therefore, when the rotation speeds of the upper grinding disc and the lower grinding disc are fixed, the relative rotation speed between the upper grinding disc and the lower grinding disc is increased, and the grinding efficiency is improved. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model.

[0015] Reference numerals: 1, pulping tank; 2, upper grinding disc; 3, lower grinding disc; 4, upper rotating shaft; 5, lower rotating shaft; 6, feed hole; 7, feed head; 8, first synchronous pulley; 9, second synchronous pulley; 10, first synchronous belt; 11, rotating rod; 12, third synchronous pulley; 13, fourth synchronous pulley; 14, second synchronous belt; 15, first gear; 16, second gear; 17, motor; 18, worm; 19, worm gear. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0017] A double-disc pulping device includes a pulping tank 1. Inside the pulping tank 1, a horizontally rotating upper grinding disc 2 and a lower grinding disc 3 are provided. The upper grinding disc 2 and the lower grinding disc 3 cooperate for pulping. The upper grinding disc 2 is located above the lower grinding disc 3. The center of the upper end of the upper grinding disc 2 is fixedly provided with a vertical upper rotating shaft 4, and the upper rotating shaft 4 drives the upper grinding disc 2 to rotate. The upper rotating shaft 4 is rotatably installed at the upper end of the pulping tank 1. The center of the lower end of the lower grinding disc 3 is fixedly provided with a vertical lower rotating shaft 5, and the lower rotating shaft 5 drives the lower grinding disc 3 to rotate. The lower rotating shaft 5 is rotatably installed at the lower end of the pulping tank 1;

[0018] The upper end of the upper rotating shaft 4 extends upward from the refining tank 1, and a feed hole 6 is vertically penetrated in the upper rotating shaft 4. The lower end of the feed hole 6 passes through the upper grinding disc 2. A feed hopper is provided at the upper end of the refining tank 1 through a bracket, and a feed pipe extending into the inner hole is provided at the lower end of the feed hopper. A discharge pipe is provided at the lower end of the refining tank 1.

[0019] The upper rotating shaft 4 and the lower rotating shaft 5 are driven by a driving mechanism to rotate in opposite directions.

[0020] The slurry is transported from the feed hopper along the feed hole 6 to the space between the upper grinding disc 2 and the lower grinding disc 3 for grinding. The upper grinding disc 2 and the lower grinding disc 3 are driven by the driving mechanism to rotate in opposite directions. Therefore, when the rotation speed of the upper grinding disc 2 and the lower grinding disc 3 is fixed, the reverse rotation increases the relative rotation speed between the upper grinding disc 2 and the lower grinding disc 3, thereby improving the grinding efficiency.

[0021] The preferred technical solution is that the driving mechanism includes a first synchronous wheel 8, which is fixed to the upper end of the upper rotating shaft 4. A vertical rotating rod 11 is provided on one side of the refining tank 1. The rotating rod 11 is rotatably mounted on the refining tank 1. A second synchronous wheel 9 corresponding to the first synchronous wheel 8 is fixed on the rotating rod 11. The first synchronous wheel 8 and the second synchronous wheel 9 are connected by a first synchronous belt 10. A rotating third synchronous wheel 12 is installed at the lower end of the refining tank 1. A rotating third synchronous wheel 12 is fixed on the rotating rod 11. 2 corresponding to the fourth synchronous wheel 13, the third synchronous wheel 12 and the fourth synchronous wheel 13 are connected by a second synchronous belt 14, the third synchronous wheel 12 is fixedly provided with a coaxially arranged first gear 15, the lower end of the lower rotating shaft 5 extends downward from the refining tank 1, the lower end of the lower rotating shaft 5 is fixedly provided with a second gear 16 engaged with the first gear 15, a worm gear 19 is fixedly provided on the rotating rod 11, and a motor 17 is installed on one side of the refining tank 1 through a connecting frame, and the output end of the motor 17 is provided with a worm 18 engaged with the worm gear 19.

[0022] The motor 17 drives the rotating rod 11 to rotate through the worm 18 and the worm wheel 19. The second synchronous wheel 9 and the fourth synchronous wheel 13 on the rotating rod 11 respectively drive the first synchronous wheel 8 and the third synchronous wheel 12 to rotate in the same direction under the transmission of the first synchronous belt 10 and the second synchronous belt 14. Since the third synchronous wheel 12 is fixedly mounted with the first gear 15 engaged with the second gear 16, the third synchronous wheel 12 and the second gear 16 rotate in opposite directions, and then the first synchronous wheel 8 and the second gear 16 rotate in opposite directions, thereby driving the upper grinding disc 2 and the lower grinding disc 3 to rotate in opposite directions.

[0023] According to a preferred technical solution, the height of the bottom of the refining tank 1 gradually decreases from the center to the periphery, and the discharge pipe is connected to the lowest position of the bottom of the refining tank 1 .

[0024] The pulp after being ground by the upper grinding disc 2 and the lower grinding disc 3 is collected at the bottom edge inside the grinding tank 1, and then discharged through the discharge pipe.

[0025] In a preferred technical solution, the feed pipe is rigidly arranged, and after the feed pipe extends into the feed hole 6, it is connected to the upper end of the upper rotating shaft 4 through a shaft seal structure.

[0026] The shaft seal structure adopts the prior art. The feed pipe and the upper rotating shaft 4 are sealed and rotationally connected, which can ensure rotation while sealing, and prevent the pulp in the feed hole 6 from leaking out through the gap between the feed pipe and the feed hole 6.

[0027] In a preferred technical solution, a vibrator is connected to the outer wall of the feed hopper.

[0028] The vibrator adopts the prior art. By means of the vibrator, the feed hopper generates vibrations, reducing the residue of the pulp in the feed head 7.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0031] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

Claims

1. A double-disc refiner device, characterized in that, The invention comprises a refining tank (1), wherein a horizontally rotating upper grinding disc (2) and a lower grinding disc (3) are provided in the refining tank (1), wherein the upper grinding disc (2) is located at the upper end of the lower grinding disc (3), a vertical upper rotating shaft (4) is fixedly provided at the center of the upper end of the upper grinding disc (2), and the upper rotating shaft (4) is rotatably mounted on the upper end of the refining tank (1), and a vertical lower rotating shaft (5) is fixedly provided at the center of the lower end of the lower grinding disc (3), and the lower rotating shaft (5) is rotatably mounted on the lower end of the refining tank (1); The upper end of the upper rotating shaft (4) extends upward from the refining tank (1); a feed hole (6) is vertically penetrated in the upper rotating shaft (4); the lower end of the feed hole (6) passes through the upper grinding disc (2); a feed hopper is provided at the upper end of the refining tank (1) through a bracket; a feed pipe is provided at the lower end of the feed hopper and extends into the inner hole; and a discharge pipe is provided at the lower end of the refining tank (1); The upper rotating shaft (4) and the lower rotating shaft (5) are driven by a driving mechanism to rotate in opposite directions.

2. The double-disc refining device according to claim 1, wherein, The driving mechanism comprises a first synchronous wheel (8), which is fixedly arranged at the upper end of the upper rotating shaft (4); a vertical rotating rod (11) is provided on one side of the refining tank (1); the rotating rod (11) is rotatably mounted on the refining tank (1); a second synchronous wheel (9) corresponding to the first synchronous wheel (8) is fixedly arranged on the rotating rod (11); the first synchronous wheel (8) and the second synchronous wheel (9) are connected in transmission via a first synchronous belt (10); a rotating third synchronous wheel (12) is installed at the lower end of the refining tank (1); a third synchronous wheel (12) corresponding to the third synchronous wheel (12) is fixedly arranged on the rotating rod (11); Four synchronous wheels (13), the third synchronous wheel (12) and the fourth synchronous wheel (13) are connected by a second synchronous belt (14), the third synchronous wheel (12) is fixedly provided with a coaxially arranged first gear (15), the lower end of the lower rotating shaft (5) extends downward from the refining tank (1), the lower end of the lower rotating shaft (5) is fixedly provided with a second gear (16) meshing with the first gear (15), the rotating rod (11) is fixedly provided with a worm gear (19), a motor (17) is installed on one side of the refining tank (1) through a connecting frame, and the output end of the motor (17) is provided with a worm (18) meshing with the worm gear (19).

3. The double-disc refiner according to claim 2, wherein, The height of the bottom of the refining tank (1) gradually decreases from the center to the periphery, and the discharge pipe is connected to the lowest position of the bottom of the refining tank (1).

4. The double-disc refiner according to claim 1, characterized in that, The feed pipe is rigidly arranged and is connected to the upper end of the upper rotating shaft (4) through a shaft sealing structure after being inserted into the feed hole (6).

5. The twin-disc refiner according to claim 1, wherein, A vibrator is connected to the outer wall of the feed hopper.

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