Pulp tower pulp backflow dilution device

Abstract

The utility model discloses a pulp tower pulp backflow diluting device, which relates to the technical field of pulp papermaking and comprises a tower barrel, a pulp return pump is arranged on one side of the tower barrel, a pulp pumping pipe is arranged at a pulp pumping opening of the pulp return pump, a pulp outlet pipe is arranged at a pulp outlet of the pulp return pump, and one end of the pulp pumping pipe and one end of the pulp outlet pipe penetrate through the tower barrel and are arranged inside the tower barrel. A door-shaped plate is arranged at the top of the tower barrel through a barrel cover, and four rotating rods are uniformly and rotatably arranged in the barrel cover; the paper pulp crushing device has the advantages that the driving assembly can drive the four gear rings and the four rotating rods to rotate synchronously, the four gear rings and the four rotating rods are matched with the crushing cutterheads on the surfaces of the rotating rods to fully crush paper pulp, certain energy consumption is reduced, meanwhile, the pulp return pump is arranged on one side of the tower barrel and matched with the pulp pumping pipe and the pulp outlet pipe, and therefore the paper pulp can be fully crushed. And the paper pulp with the smashed bottom flows back to the top of the tower barrel again through the pulp return pump to be smashed again, so that the dilution efficiency of the paper pulp is improved, and the later paper pulp papermaking progress is facilitated.

Description

Technical Field

[0001] The utility model relates to a dilution device, in particular to a pulp tower pulp reflux dilution device, belonging to the technical field of pulp papermaking. Background Art

[0002] In the papermaking industry, wood is generally used as the main raw material. However, with the further deterioration of the environment, this process of using logs as raw materials is gradually being replaced. In order to guarantee the needs of the papermaking industry to the greatest extent, there is now a technology that uses grasses such as hair grass, cotton stalks, reeds, corn stalks, and rice straw as pulping raw materials. This not only provides a new source of fiber for the papermaking industry, but also realizes the utilization of waste, changing the original situation where the above materials can only be incinerated or returned to the fields, and realizing the comprehensive utilization of resources. In the process of processing raw materials, after the plant makes pulp, the concentration of the pulp is usually diluted to make it suitable for papermaking.

[0003] Among them, the "a kind of paper pulp dilution device for papermaking" disclosed in the application number "CN201922260799.9" "comprises a bottom plate, two support plates and a dilution cylinder, one side of the dilution cylinder is fixedly connected with a fixed plate, the top of the fixed plate is fixedly installed with a motor, one side of the dilution cylinder is provided with a first through hole, and the output shaft of the motor extends to the interior of the dilution cylinder at the first through hole". In the utility model, a dilution cylinder, a diverter plate, a water guide pipe, a first crushing plate, a second crushing plate, a stirring rod, a spring, a rotating sleeve, a motor, and a convex block are arranged. The rotating sleeve is driven by the motor to rotate, and the rotating sleeve drives the stirring rod to rotate. The stirring rod contacts the convex block. When the stirring rod rotates to the bottom end, it extends the longest, driving the second crushing plate to move, and retracts into the rotating sleeve when rotating. The second crushing plate returns to its original position, and the agglomerated slurry is crushed, thereby better diluting the pulp.

[0004] However, the above method still has the following defects: the agglomerated pulp is crushed only by the crushing plate, resulting in reduced dilution efficiency during pulp dilution, which affects the progress of pulp papermaking in the later stage. Utility Model Content

[0005] The utility model aims to provide a pulp tower pulp reflux dilution device to solve the problem proposed in the above background technology that the agglomerated pulp is crushed only by a crushing plate, resulting in reduced dilution efficiency during pulp dilution and affecting the progress of subsequent pulp papermaking.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulp tower pulp reflux dilution device, comprising a tower barrel, a return pulp pump is provided on one side of the tower barrel, a pulp suction port of the return pulp pump is provided with a pulp suction pipe, and a pulp outlet of the return pulp pump is provided with a pulp outlet pipe, one end of the pulp suction pipe and one end of the pulp outlet pipe both pass through the tower barrel and are placed inside the tower barrel, a door plate is provided on the top of the tower barrel through a barrel cover, four rotating rods are evenly rotated inside the barrel cover, a plurality of crushing blades are evenly provided on the surface of the rotating rod, a feeding barrel is provided on the top of the barrel cover, a crushing assembly is provided inside the feeding barrel, a driving assembly is provided on the top of the door plate, and a gear ring is provided on the top of the rotating rod.

[0007] As a preferred technical solution of the utility model, the surface of the barrel cover is threadedly connected to the top of the tower barrel through a plurality of bolts, and a sealing ring is provided at the connection between the tower barrel and the barrel cover, and two handles are symmetrically provided on the top of the barrel cover.

[0008] As a preferred technical solution of the utility model, a discharge pipe is provided at the bottom of the front of the tower barrel, a water inlet pipe is provided at the top of the barrel cover, and a one-way valve is provided in the middle of the discharge pipe and on the surface of the water inlet pipe.

[0009] As a preferred technical solution of the utility model, a mechanical seal is provided at the connection between the rotating rod and the barrel cover, a support seat is provided at the bottom of the tower barrel, and a plurality of running wheels are provided at the bottom of the support seat.

[0010] As a preferred technical solution of the utility model, the crushing assembly includes a roller, which is rotatably arranged inside the feed barrel, the top of the roller passes through the feed barrel and is fixedly connected to a pulley arranged on the top of the feed barrel, and a plurality of crushing knives are arranged on the surface of the roller.

[0011] As a preferred technical solution of the utility model, a feeding pipe is provided at the top of one side of the feeding cylinder, and a second mechanical seal is provided at the connection between the rotating roller and the feeding cylinder.

[0012] As a preferred technical solution of the utility model, the driving assembly includes a motor, which is fixedly installed in the middle of the top of the door-type plate. The output shaft of the motor passes through the door-type plate and is provided with a rotating column. The bottom end of the rotating column is provided with a gear, and the gear is meshed and connected with four gear rings.

[0013] As a preferred technical solution of the utility model, a second pulley is provided on the surface of the rotating column, and the first pulley and the second pulley are connected by a transmission belt.

[0014] Compared with the related art, the pulp tower pulp reflux dilution device provided by the utility model has the following beneficial effects:

[0015] 1. The drive assembly can drive four gear rings and four rotating rods to rotate synchronously, and cooperate with the crushing cutter disc on the surface of the rotating rod to fully break the pulp, reducing energy consumption to a certain extent. At the same time, through the return pulp pump set on one side of the tower barrel, in conjunction with the pulp suction pipe and the pulp discharge pipe, the broken pulp at the bottom is returned to the top of the tower barrel through the return pulp pump for re-breaking, which is convenient for improving the dilution efficiency of the pulp and facilitating the progress of pulp and papermaking in the later stage.

[0016] 2. The provided breaking component can facilitate the breaking operation of the pulp material during feeding, further improving the crushing effect of the pulp after agglomeration, thereby improving the dilution efficiency of the pulp.

[0017] 3. The provided bolts and handles make it easy to disassemble the barrel cover and the top parts, and to timely maintain and clean the crushing disc. At the same time, the tower barrel can be cleaned and maintained, making it easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the explosion structure of the tower barrel of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the tower barrel of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the feed barrel of the utility model;

[0022] Figure 5 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0023] Figure 6 For this utility model Figure 1 Schematic diagram of the enlarged structure at B.

[0024] In the figure: 1. tower barrel; 2. return slurry pump; 3. slurry discharge pipe; 4. slurry suction pipe; 5. barrel cover; 6. rotating rod; 7. crushing knife disc; 8. feeding barrel; 9. crushing assembly; 901. rotating roller; 902. crushing knife; 903. feeding pipe; 904. pulley 1; 10. gear ring; 11. driving assembly; 1101. motor; 1102. rotating column; 1103. gear; 1104. pulley 2; 1105. transmission belt; 12. door panel; 13. discharge pipe; 14. support seat; 15. bolt; 16. handle; 17. water inlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figure 1-6 The utility model provides a pulp tower pulp reflux dilution device, including a tower barrel 1, a slurry pump 2 is arranged on one side of the tower barrel 1, and the slurry pump 2 is arranged on one side of the tower barrel 1, and the pulp is refluxed to the top of the tower barrel 1 through the slurry pump 2 again through the slurry pump 2, and the pulp is refluxed to the top of the tower barrel 1 again through the slurry pump 2, and the pulp is refluxed again through the slurry pump 2, so as to improve the dilution efficiency of the pulp and facilitate the progress of pulp papermaking in the later stage. The slurry suction port of the slurry pump 2 is provided with a slurry suction pipe 4, and the pulp discharge port of the slurry pump 2 is provided with a pulp discharge pipe 3. One end of the slurry suction pipe 4 and one end of the pulp discharge pipe 3 both penetrate the tower barrel 1 and are placed inside the tower barrel 1. The top of the tower barrel 1 is provided with a door-type plate 12 through a barrel cover 5, and four rotating rods 6 are arranged inside the barrel cover 5 for uniform rotation, and the surface of the rotating rod 6 is uniformly designed There are several crushing blades 7, four rotating rods 6 are arranged inside the tower barrel 1, and multiple crushing blades 7 are arranged on the surface of the rotating rod 6, so as to facilitate the crushing of the agglomerated pulp and improve the crushing effect. A feeding barrel 8 is arranged on the top of the barrel cover 5, and a crushing component 9 is arranged inside the feeding barrel 8. The crushing component 9 is arranged to facilitate the crushing operation when the pulp material is fed, further improving the crushing effect of the pulp and thus improving the dilution efficiency of the pulp. A driving component 11 is arranged on the top of the door plate 12. The driving component 11 is arranged to facilitate the simultaneous control of the four gear rings 10 and the rotating rod 6 to rotate synchronously, thereby reducing a certain amount of energy consumption and making better use of the pulp dilution work. A gear ring 10 is arranged on the top of the rotating rod 6;

[0028] The crushing assembly 9 includes a roller 901, which is rotatably arranged inside the feed cylinder 8. The top of the roller 901 passes through the feed cylinder 8 and is fixedly connected to a pulley 904 arranged on the top of the feed cylinder 8. A plurality of crushing knives 902 are arranged on the surface of the roller 901. By controlling the rotation of the roller 901, the crushing knives 902 are driven to crush the pulp material and feed the pulp, thereby improving the crushing effect of the pulp.

[0029] A feed pipe 903 is provided at the top of one side of the feed barrel 8, and a mechanical seal 2 is provided at the connection between the rotating roller 901 and the feed barrel 8, so as to facilitate the placement of pulp inside the feed barrel 8 and the tower barrel 1 through the feed pipe 903, and to facilitate the sealing of the connection between the rotating roller 901 and the feed barrel 8;

[0030] The surface of the barrel cover 5 is threadedly connected to the top of the tower barrel 1 through a plurality of bolts 15, and a sealing ring is provided at the connection between the tower barrel 1 and the barrel cover 5. Two handles 16 are symmetrically provided on the top of the barrel cover 5, which are convenient for connecting and fixing with the top of the tower barrel 1 through the bolts 15, and convenient for removing the barrel cover 5 by the handles 16, so as to facilitate cleaning and maintenance of the crushing blade 7 inside the tower barrel 1, and at the same time, it is convenient to clean and maintain the inside of the tower barrel 1, which is convenient for later use;

[0031] A discharge pipe 13 is provided at the bottom of the front of the tower barrel 1, and a water inlet pipe 17 is provided at the top of the barrel cover 5. A one-way valve is provided in the middle of the discharge pipe 13 and on the surface of the water inlet pipe 17 to facilitate the discharge operation and to facilitate the dilution operation of the pulp by adding water through the water inlet pipe 17.

[0032] Embodiment 2:

[0033] The driving assembly 11 includes a motor 1101, which is fixedly installed in the middle of the top of the door-shaped plate 12. The output shaft of the motor 1101 passes through the door-shaped plate 12 and is provided with a rotating column 1102. The bottom end of the rotating column 1102 is provided with a gear 1103, which is meshed and connected with four gear rings 10. The rotating column 1102 and the gear 1103 are driven by the motor 1101 to rotate synchronously, and the meshed gear rings 10 are matched to drive the four rotating rods 6 and the crushing blade 7 to rotate, so as to break up the agglomerated pulp and reduce energy consumption to a certain extent.

[0034] A second pulley 1104 is provided on the surface of the rotating column 1102, and the first pulley 904 and the second pulley 1104 are connected to each other through a transmission belt 1105. Through the mutual cooperation between the first pulley 904, the second pulley 1104 and the transmission belt 1105, it is convenient to drive the 9 pairs of crushing components to perform preliminary crushing, thereby improving the crushing effect;

[0035] A mechanical seal is provided at the connection between the rotating rod 6 and the barrel cover 5, a support seat 14 is provided at the bottom of the tower barrel 1, and a plurality of running wheels are provided at the bottom of the support seat 14, so as to facilitate the sealing effect and move the dilution device, making it more flexible and convenient to use and convenient for later transportation.

[0036] When in use, first, turn on the power supply, then add a certain amount of pulp into the inside of the feed barrel 8 through the feed pipe 903, and control the motor 1101 to work, the output shaft of the motor 1101 drives the rotating column 1102 and the gear 1103 to rotate, cooperate with the four meshing gear rings 10, and then synchronously drive the four rotating rods 6 and the crushing blade 7 on the surface to rotate, and at the same time cooperate with the pulley 2 1104, the pulley 1 904 and the transmission belt 1105, which can drive the set roller 901 to move, that is, drive the crushing blade 902 to perform a preliminary crushing operation on the passing pulp material;

[0037] Then the pulp enters the interior of the tower barrel 1, and the agglomerated pulp can be fully broken up by setting up a plurality of crushing blades 7. Then, a proper amount of water can be added to the interior of the tower barrel 1 through the water inlet pipe 17 to dilute the pulp. Then, the pulp return pump 2 can be controlled to work, and the pulp suction pipe 4 is used to return the pulp from the bottom to the top of the tower barrel 1 in coordination with the pulp discharge pipe 3, and then the crushing operation is performed again, so as to improve the dilution efficiency of the pulp and facilitate the progress of the later pulp papermaking. After the dilution is completed, the power is turned off, and the diluted pulp can be collected in coordination with the discharge pipe 13.

[0038] When the tower barrel 1 needs to be cleaned and maintained, the bolts 15 are removed and the barrel cover 5 is lifted upward using the handle 16 so that the rotating rod 6 is placed on the top of the tower barrel 1. The inner wall of the tower barrel 1 can be cleaned and the crushing blade 7 can also be cleaned and maintained at the same time. It is more convenient to use. After cleaning, the barrel cover 5 and the tower barrel 1 can be sealed and fixed using the bolts 15.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulp tower pulp reflux dilution device, comprising a tower barrel (1), characterized in that: A slurry pump (2) is provided on one side of the tower barrel (1), a slurry suction port of the slurry pump (2) is provided with a slurry suction pipe (4), a slurry outlet of the slurry pump (2) is provided with a slurry outlet pipe (3), one end of the slurry suction pipe (4) and one end of the slurry outlet pipe (3) both pass through the tower barrel (1) and are placed inside the tower barrel (1), a door plate (12) is provided on the top of the tower barrel (1) through a barrel cover (5), four rotating rods (6) are evenly rotated inside the barrel cover (5), a plurality of crushing blade discs (7) are evenly provided on the surface of the rotating rod (6), a feeding barrel (8) is provided on the top of the barrel cover (5), a crushing assembly (9) is provided inside the feeding barrel (8), a driving assembly (11) is provided on the top of the door plate (12), and a gear ring (10) is provided on the top of the rotating rod (6).

2. The pulp tower pulp reflux dilution device according to claim 1, characterized in that: The surface of the barrel cover (5) is threadedly connected to the top of the tower barrel (1) via a plurality of bolts (15), and a sealing ring is provided at the connection between the tower barrel (1) and the barrel cover (5), and two handles (16) are symmetrically provided on the top of the barrel cover (5).

3. The pulp tower pulp reflux dilution device according to claim 1, characterized in that: A discharge pipe (13) is provided at the bottom of the front of the tower barrel (1), a water inlet pipe (17) is provided at the top of the barrel cover (5), and one-way valves are provided in the middle of the discharge pipe (13) and on the surface of the water inlet pipe (17).

4. The pulp tower pulp reflux dilution device according to claim 1, characterized in that: A mechanical seal is provided at the connection between the rotating rod (6) and the barrel cover (5), a support seat (14) is provided at the bottom of the tower barrel (1), and a plurality of running wheels are provided at the bottom of the support seat (14).

5. The pulp tower pulp reflux dilution device according to claim 1, characterized in that: The crushing assembly (9) comprises a rotating roller (901), which is rotatably arranged inside the feeding cylinder (8), the top of the rotating roller (901) passes through the feeding cylinder (8) and is fixedly connected to a pulley (904) arranged on the top of the feeding cylinder (8), and a plurality of crushing knives (902) are arranged on the surface of the rotating roller (901).

6. The pulp tower pulp reflux dilution device according to claim 5, characterized in that: A feeding pipe (903) is provided at the top of one side of the feeding cylinder (8), and a second mechanical seal is provided at the connection between the rotating roller (901) and the feeding cylinder (8).

7. The pulp tower pulp reflux dilution device according to claim 5, characterized in that: The driving assembly (11) comprises a motor (1101), wherein the motor (1101) is fixedly mounted at the middle of the top end of the door-shaped plate (12), an output shaft of the motor (1101) passes through the door-shaped plate (12) and is provided with a rotating column (1102), a gear (1103) is provided at the bottom end of the rotating column (1102), and the gear (1103) is meshedly connected with four gear rings (10).

8. The pulp tower pulp reflux dilution device according to claim 7, characterized in that: A second pulley (1104) is provided on the surface of the rotating column (1102), and the first pulley (904) and the second pulley (1104) are connected to each other via a transmission belt (1105).

Images