纸浆细小纤维回收利用设备
By using a combination of Venturi tubes and mixing tubes, the Bernoulli principle is utilized to capture fine fibers and mix them with pulp, solving the problems of low efficiency and high cost in traditional recycling methods. This achieves efficient recycling and reuse of fine fibers and promotes the sustainable development of papermaking processes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU FOREST PAPER CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the fine fibers generated during pulp preparation and papermaking are difficult to recycle efficiently, leading to resource waste and increased costs. Traditional methods are inefficient, have high equipment costs, and consume a lot of energy.
A combination device of Venturi tube and mixing tube is used to generate negative pressure to attract fine fibers using Bernoulli's principle. The fine fibers are captured and recycled through the cooperation of the mixing tube and the medicine container.
It improves the recycling efficiency of fine fibers, reduces equipment costs and energy consumption, increases resource utilization, and promotes the sustainable development of papermaking processes.
Smart Images
Figure CN224513923U_ABST
Abstract
Claims
1. A pulp fine fiber recycling device comprising a Venturi tube (1), a mixing tube (2) and a medicine pot (3), characterized in that: A high-pressure nozzle (4) is fixedly connected to the outer side of one end of the Venturi tube (1), and a slurry outlet pipe (5) is fixedly connected to the other end of the Venturi tube (1). A contraction section (6) is provided inside the Venturi tube (1), a diffusion section (7) is provided inside the Venturi tube (1), a throat pipe (8) is provided inside the Venturi tube (1), a connecting pipe (9) is fixedly connected to the bottom of the Venturi tube (1), a white water tank (11) is provided between the Venturi tube (1) and the mixing pipe (2), a water injection pipe (12) is connected to the top of the white water tank (11), a dosing pipe (18) is connected to the outer side of the mixing pipe (2), and a dispersion nozzle (21) is connected to the bottom of the mixing pipe (2).
2. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: The throat (8) is connected to the contraction section (6) and the diffusion section (7) respectively. The contraction section (6) is close to the high-pressure nozzle (4), and the diffusion section (7) is close to the slurry outlet pipe (5).
3. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: The connecting pipe (9) is connected to the throat (8), and the diameter of the connecting pipe (9) is one-third of that of the throat (8).
4. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: The end of the connecting pipe (9) away from the venturi pipe (1) is connected to the fiber collecting pipe (10), and the end of the fiber collecting pipe (10) away from the connecting pipe (9) is connected to the white water tank (11). The connection between the fiber collecting pipe (10) and the white water tank (11) is located on the lower side of the white water tank (11).
5. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: A drain pipe (13) is connected between the white water tank (11) and the mixing pipe (2), and the drain pipe (13) is located in the middle of the mixing pipe (2).
6. The pulp fine fiber recycling equipment according to claim 1, characterized in that: A motor (14) is fixedly connected to the top of the mixing tube (2), and the output shaft of the motor (14) passes through the mixing tube (2) and is fixedly connected to a stirring shaft (15).
7. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: The outside of the mixing pipe (2) is connected to the grouting pipe (16), and the inside of the grouting pipe (16) is fixedly connected to the first flow detection valve (17).
8. The paper pulp fine fiber recycling apparatus according to claim 1, characterized by: The end of the dosing tube (18) away from the mixing tube (2) is connected to the medicine tank (3). An electric valve (19) is fixedly connected inside the dosing tube (18), and a second flow detection valve (20) is fixedly connected outside the dosing tube (18). The second flow detection valve (20) is close to the mixing tube (2).