Hydraulic pulper with coaxial different-speed impellers

Abstract

The utility model relates to the technical field of papermaking equipment, in particular to a hydraulic pulper with coaxial different-speed impellers, which comprises a barrel-shaped tank body, a mounting part is hermetically arranged at the lower part of the tank body, and an external rotation mechanism for stirring pulp in the tank body is hermetically and rotatably arranged in the mounting part; an internal rotation mechanism for rotatably cutting pulp fibers is arranged in the external rotation mechanism in a sealed and rotating manner; the rotating speeds of the external rotating mechanism and the internal rotating mechanism are adjustable, and the rotating directions of the external rotating mechanism and the internal rotating mechanism are opposite. According to the hydraulic pulper with the coaxial different-speed impellers, the cutting and dispersing effects are improved by stirring pulp.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a hydraulic pulper with coaxial and variable-speed impellers. Background Art

[0002] The pulper is a high-speed dispersing device used to process fiber slurry. It uses mechanical motion to cut and break up long fibers through high-speed rotating rotor blades, and finally disperse them evenly. In the process, impurities attached to the fibers will also be peeled off and broken.

[0003] Currently, pulpers are equipped with rotor blades of various specifications and models on the rotating shaft to improve cutting efficiency and achieve the purpose of dispersion. However, conventional pulpers still have the following shortcomings:

[0004] During the cutting process, the fibers will gather in the center of the bottom of the trough, resulting in insufficient fiber cutting and poor slurry cutting and dispersion effects. This needs to be solved by extending the cutting time. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a hydraulic pulper with coaxial and variable-speed impellers, which improves the cutting and dispersing effects by stirring the slurry.

[0006] The technical solution adopted by the present invention is:

[0007] A hydraulic pulper with coaxial variable-speed impellers comprises: a cylindrical tank body, a mounting portion sealed at the lower portion of the tank body, an external rotating mechanism sealed and rotatably disposed within the mounting portion for stirring the pulp in the tank body, and an internal rotating mechanism sealed and rotatably disposed within the external rotating mechanism for rotary cutting pulp fibers; the rotation speeds of the external rotating mechanism and the internal rotating mechanism are adjustable, and the rotation directions of the two mechanisms are opposite.

[0008] Furthermore, the installation portion includes:

[0009] A circular mounting plate is sealed and connected to the lower part of the trough body, and a downward extending sealing outer seat is sealed and provided at the annular hole of the mounting plate. A fixed arm is extended and fixedly provided at the lower end of the mounting plate, and a fixed cylinder is fixedly provided at the end of the fixed arm. The fixed cylinder, the annular hole of the mounting plate, and the sealing outer seat share a central axis, and an external rotating mechanism is coaxially and sealed.

[0010] Furthermore, the external rotation mechanism includes:

[0011] An external rotating cylinder is sealed and rotatably inserted into the fixed cylinder and the sealed outer seat. The lower end of the external rotating cylinder extends outside the fixed cylinder and is coaxially provided with an external rotating driven wheel. The external rotating driven wheel is provided with an external rotating driving wheel through a transmission belt. The external rotating driving wheel is provided with an external rotating motor. The upper end of the external rotating cylinder extends to the tank body above the mounting plate and is coaxially provided with a stirring paddle.

[0012] Furthermore, a liquid discharge port is provided through the outer wall of the outer rotating cylinder.

[0013] Furthermore, the internal rotation mechanism includes:

[0014] An inner rotating shaft is sealed and rotatably inserted in the outer rotating cylinder, the upper and lower ends of the inner rotating shaft extend to the outside of the outer rotating cylinder, and the upper end of the inner rotating shaft is coaxially arranged to extend to the outside of the fixed cylinder, and a shearing paddle and an inner rotating driven wheel are coaxially arranged. The inner rotating driven wheel is provided with an inner rotating driving wheel through a transmission belt, and the inner rotating driving wheel is provided with an inner rotating motor.

[0015] Furthermore, an external rotating packing for sealing the external rotating cylinder is stacked inside the sealing outer seat;

[0016] An internal rotating filler with an internal rotating shaft is stacked on the upper part of the external rotating cylinder.

[0017] Furthermore, the externally rotating filler and the internally rotating filler are compressed into a sealed state by a packing gland.

[0018] Furthermore, an upper radial outer bearing and a lower radial outer bearing are respectively provided on the inner cylinder walls of the upper and lower parts of the fixed cylinder, and the upper radial outer bearing and the lower radial outer bearing are respectively provided on the middle and lower parts of the outer rotating cylinder;

[0019] An axis fiber plug that is in sliding contact with the outer wall of the outer rotating cylinder is fixedly arranged on the fixed cylinder.

[0020] Furthermore, an axial inner bearing and a radial inner bearing are provided on the inner cylinder wall in the middle of the outer rotating cylinder, and the axial inner bearing and the radial inner bearing are provided in the middle of the inner rotating shaft;

[0021] A combined inner bearing is provided on the inner cylinder wall at the lower part of the outer rotating cylinder, and the combined inner bearing is provided at the lower part of the inner rotating shaft.

[0022] Furthermore, a liquid supply pipe is provided on the sealed outer seat and the outer rotating cylinder, the liquid supply pipe is connected to the external high-pressure refrigerant, and the inside of the liquid supply pipe is connected to the outer rotating filler and the inner rotating filler;

[0023] An upper inner oil injection port and a lower inner oil injection port are respectively provided on the outer cylinder wall in the middle and lower parts of the outer rotating cylinder. The upper inner oil injection port is used to add grease to the axial inner bearing and the radial inner bearing, and the lower inner oil injection port is used to add grease to the combined inner bearing.

[0024] An external oil injection upper port and an external oil injection lower port are respectively provided on the outer cylinder walls of the upper and lower parts of the fixed cylinder. The external oil injection upper port is used to replenish grease to the upward radial outer bearing, and the external oil injection lower port is used to replenish grease to the downward radial outer bearing.

[0025] The beneficial effects of the hydraulic pulper with coaxial and variable-speed impellers of the utility model are:

[0026] 1. The slurry is stirred and dispersed by the low-speed stirring paddle in the external rotating mechanism;

[0027] 2. The slurry is cut and dispersed by the shear blade at a set high speed through the internal rotation mechanism;

[0028] 3. The cutting and dispersing efficiency is increased by the opposite rotation directions of the external rotation mechanism and the internal rotation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall cross section of a hydraulic pulper with coaxial and variable-speed impellers provided by the present utility model;

[0030] Figure 2 This is an example of the utility model Figure 1 The overall three-dimensional schematic diagram of A in the middle;

[0031] Figure 3 This is an example of the utility model Figure 1 The overall three-dimensional schematic diagram of B in the middle;

[0032] Figure 4 The utility model provides a schematic top view of a hydraulic pulper with coaxial and variable-speed impellers.

[0033] In the picture:

[0034] 1. Tank body,

[0035] 10. Mounting plate, 11. Fixed arm, 12. Fixed cylinder, 13. Sealing outer seat,

[0036] 20. External rotating cylinder, 21. External rotating driven wheel, 22. External rotating driving wheel, 23. External rotating motor, 24. Stirring paddle, 25. Liquid discharge port,

[0037] 30. Inward rotating shaft, 31. Inward rotating driven wheel, 32. Inward rotating driving wheel, 33. Inward rotating motor, 34. Shearing paddle,

[0038] 41. Externally rotating packing, 42. Internally rotating packing, 43. Axial inner bearing, 44. Radial inner bearing, 45. Upper radial outer bearing, 46. Lower radial outer bearing, 47. Combined inner bearing,

[0039] 51. Liquid supply pipe, 53. Internal oil injection upper port, 54. External oil injection upper port, 55. External oil injection lower port, 56. Internal oil injection lower port. DETAILED DESCRIPTION

[0040] In order to more clearly and specifically illustrate the specific implementation objectives and implementation methods of the present utility model, the following is a complete description of the technical solution of the present utility model. The described embodiments are only part of the embodiments of the present utility model, not all of them. Without inventive work, all other embodiments based on the embodiments described in the present utility model fall within the scope of protection of the present utility model.

[0041] The utility model discloses a hydraulic pulper with coaxial and variable speed impellers. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, including:

[0042] The cylindrical body is a tank body 1, and the lower part of the tank body 1 is sealed with a mounting portion, including:

[0043] A circular mounting plate 10 is sealed and connected to the lower part of the tank body 1, and a discharge valve connected to the tank body 1 is provided on the lower end surface of the mounting plate 10; a downwardly extending sealing outer seat 13 is sealed and connected to the annular hole of the mounting plate 10, and an external rotating packing 41 for sealing the external rotating cylinder 20 is stacked inside the sealing outer seat 13, and the external rotating packing 41 is pressed to a sealed state by the lower gland of the packing, and a liquid supply pipe 51 is connected to the sealing outer seat 13, and the liquid supply pipe 51 is connected to the external rotating cylinder 20, and the outside of the liquid supply pipe 51 is connected to the high-pressure refrigerant, and the inside of the liquid supply pipe 51 is connected to the external rotating packing 41 and the internal rotating packing 42; a fixed arm 11 is extended and fixedly provided at the lower end of the mounting plate 10, and the fixed arm 11 A fixed cylinder 12 is fixedly provided at the end, and a stroke cylinder for controlling the exhaust valve is fixedly provided on the outer wall of the fixed cylinder 12. An external oil injection upper port 54 and an external oil injection lower port 55 are respectively provided on the outer cylinder walls of the upper and lower parts of the fixed cylinder 12. The external oil injection upper port 54 is used to replenish grease to the upper radial outer bearing 45, and the external oil injection lower port 55 is used to replenish grease to the lower radial outer bearing 46; an upper radial outer bearing 45 and a lower radial outer bearing 46 are respectively provided on the inner cylinder walls of the upper and lower parts of the fixed cylinder 12. The upper radial outer bearing 45 and the lower radial outer bearing 46 are respectively arranged in the middle and lower parts of the outer rotating cylinder 20, and an axial fiber head that is in sliding contact with the outer wall of the outer rotating cylinder 20 is fixed on the fixed cylinder 12.

[0044] The fixed cylinder 12, the annular hole of the mounting plate 10, and the sealing outer seat 13 are coaxially connected and coaxially sealed with an external rotating mechanism, which is used to stir the slurry in the tank body 1, including:

[0045] The outer rotating cylinder 20 is sealed and rotatably inserted in the fixed cylinder 12 and the sealed outer seat 13. The lower end of the outer rotating cylinder 20 extends to the outside of the fixed cylinder 12 and is coaxially provided with an outer rotating driven wheel 21. The outer rotating driven wheel 21 is provided with an outer rotating driving wheel 22 through a transmission belt. The outer rotating driving wheel 22 is driven by an outer rotating motor 23. The upper end of the outer rotating cylinder 20 extends to the tank body 1 above the mounting plate 10 and is coaxially provided with a stirring paddle 24. The stirring paddle 24 is provided at the lower part of the tank body 1 to stir the slurry in the body 1 and assist in discharging. A drain port 25 is provided on the outer wall of the outer rotating cylinder 20. The drain port 25 is connected to the raw material slurry storage tank to prevent the slurry in the tank body 1 from being collected after leakage. The outer rotating cylinder 20 An axial inner bearing 43 and a radial inner bearing 44 are provided on the inner cylinder wall in the middle part, and the axial inner bearing 43 and the radial inner bearing 44 are provided in the middle part of the inner rotating shaft 30. A combined inner bearing 47 is provided on the inner cylinder wall at the lower part of the outer rotating cylinder 20, and the combined inner bearing 47 is provided at the lower part of the inner rotating shaft 30. An inner oil filling upper port 53 and an inner oil filling lower port 56 are respectively provided on the outer cylinder walls in the middle and lower parts of the outer rotating cylinder 20. The inner oil filling upper port 53 is used to replenish grease to the axial inner bearing 43 and the radial inner bearing 44, and the inner oil filling lower port 56 is used to replenish grease to the combined inner bearing 47; an inner rotating packing 42 for the inner rotating shaft 30 is stacked on the upper part of the outer rotating cylinder 20, and the inner rotating packing 42 is pressed to a sealed state by the packing upper pressure cover.

[0046] The inner rotating mechanism is sealed and rotated in the outer rotating cylinder 20, and the inner rotating mechanism is used to peel the fibers of the pulp, including:

[0047] An inner rotating shaft 30 is sealed and rotatably inserted into the outer rotating cylinder 20. The upper and lower ends of the inner rotating shaft 30 extend to the outside of the outer rotating cylinder 20, and are coaxially provided with a shearing paddle 34 and an inner rotating driven wheel 31. The shearing paddle 34 is arranged at the bottom of the tank body 1 below the stirring paddle 24. The inner rotating driven wheel 31 is provided with an inner rotating driving wheel 32 through a transmission belt, and the inner rotating driving wheel 32 is provided with an inner rotating motor 34 for transmission.

[0048] The external rotating motor 23 and the internal rotating motor 34 are respectively electrically connected to a frequency converter for speed regulation;

[0049] In order to ensure the differential rotation of the stirring paddle 24 and the shearing paddle 34 when the inverter is running at the industrial frequency state, the wheel diameter ratio of the outer rotating driven wheel 21 and the outer rotating driving wheel 22 is 2:1, the wheel diameter ratio of the inner rotating driven wheel 31 and the inner rotating driving wheel 32 is 1:2, and the wheel diameter ratio of the outer rotating driving wheel 22 and the inner rotating driving wheel 32 is 5:9.

[0050] In summary, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification. All equivalent changes and modifications of the shape, structure, characteristics and spirit described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A hydraulic pulper with coaxial variable speed impellers, comprising: The cylindrical tank body (1) is characterized by: The lower part of the tank body (1) is sealed and provided with a mounting portion, an external rotating mechanism for stirring the slurry in the tank body (1) is sealed and rotatably provided inside the mounting portion, and an internal rotating mechanism for rotary cutting the slurry fibers is sealed and rotatably provided inside the external rotating mechanism; The rotation speeds of the external rotation mechanism and the internal rotation mechanism are adjustable, and the rotation directions of the two are opposite.

2. The hydraulic pulper with coaxial and variable speed impellers according to claim 1, characterized in that: The mounting portion includes: A circular mounting plate (10) is sealed and connected to the lower part of the tank body (1); a downwardly extending sealing outer seat (13) is sealed and connected to the annular hole of the mounting plate (10); a fixing arm (11) is extended and fixedly provided at the lower end of the mounting plate (10); a fixing cylinder (12) is fixedly provided at the end of the fixing arm (11); the fixing cylinder (12), the annular hole of the mounting plate (10), and the sealing outer seat (13) are coaxially connected and coaxially sealed with an external rotation mechanism.

3. The hydraulic pulper with coaxial and variable speed impellers according to claim 2, characterized in that: The external rotation mechanism comprises: An external rotating cylinder (20) is sealed and rotatably inserted into a fixed cylinder (12) and a sealed outer seat (13); the lower end of the external rotating cylinder (20) extends outside the fixed cylinder (12) and is coaxially provided with an external rotating driven wheel (21); the external rotating driven wheel (21) is provided with an external rotating driving wheel (22) via a transmission belt; the external rotating driving wheel (22) is provided with an external rotating motor (23); the upper end of the external rotating cylinder (20) extends into a tank body (1) above the mounting plate (10) and is coaxially provided with a stirring paddle (24).

4. The hydraulic pulper with coaxial and variable speed impellers according to claim 3, characterized in that: A liquid discharge port (25) is provided through the outer wall of the outer rotating cylinder (20).

5. The hydraulic pulper with coaxial and variable speed impellers according to claim 3, characterized in that: The internal rotation mechanism comprises: An inner rotating shaft (30) is sealed and rotatably inserted into an outer rotating cylinder (20), wherein the upper and lower ends of the inner rotating shaft (30) extend outside the outer rotating cylinder (20) and are coaxially provided with a shearing paddle (34) and an inner rotating driven wheel (31), wherein the inner rotating driven wheel (31) is provided with an inner rotating driving wheel (32) via a transmission belt, and the inner rotating driving wheel (32) is provided with an inner rotating motor (33) for transmission.

6. The hydraulic pulper with coaxial and variable speed impellers according to claim 5, characterized in that: An external rotating filler (41) for sealing the external rotating cylinder (20) is stacked inside the sealing outer seat (13); An internal rotating filler (42) with an internal rotating shaft (30) is stacked on the upper portion of the external rotating cylinder (20).

7. The hydraulic pulper with coaxial and variable speed impellers according to claim 6, characterized in that: The externally rotating packing (41) and the internally rotating packing (42) are compressed into a sealed state by a packing gland.

8. The hydraulic pulper with coaxial and variable speed impellers according to claim 5, characterized in that: An upper radial outer bearing (45) and a lower radial outer bearing (46) are respectively provided on the inner cylinder walls of the upper and lower parts of the fixed cylinder (12), and the upper radial outer bearing (45) and the lower radial outer bearing (46) are respectively provided on the middle and lower parts of the outer rotating cylinder (20); An axial fiber plug is fixedly provided on the fixed cylinder (12) and is in sliding contact with the outer wall of the outer rotating cylinder (20).

9. The hydraulic pulper with coaxial and variable speed impellers according to claim 8, characterized in that: An axial inner bearing (43) and a radial inner bearing (44) are provided on the inner cylinder wall in the middle of the outer rotating cylinder (20), and the axial inner bearing (43) and the radial inner bearing (44) are provided in the middle of the inner rotating shaft (30); A combined inner bearing (47) is provided on the inner cylinder wall at the lower portion of the outer rotating cylinder (20), and the combined inner bearing (47) is provided at the lower portion of the inner rotating shaft (30).

10. The hydraulic pulper with coaxial and variable speed impellers according to claim 9, characterized in that: The sealing outer seat (13) and the outer rotating cylinder (20) are connected with a liquid supply pipe (51), the liquid supply pipe (51) is connected to the external high-pressure refrigerant, and the liquid supply pipe (51) is connected to the outer rotating filler (41) and the inner rotating filler (42); An upper inner oil injection port (53) and a lower inner oil injection port (56) are respectively provided on the outer cylinder wall at the middle and lower parts of the outer rotating cylinder (20). The upper inner oil injection port (53) is used to replenish grease to the axial inner bearing (43) and the radial inner bearing (44), and the lower inner oil injection port (56) is used to replenish grease to the combined inner bearing (47). An upper external oil injection port (54) and a lower external oil injection port (55) are respectively provided on the outer cylinder walls of the upper and lower parts of the fixed cylinder (12). The upper external oil injection port (54) is used to replenish grease to the upper radial outer bearing (45), and the lower external oil injection port (55) is used to replenish grease to the lower radial outer bearing (46).

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