Tailing fiber recycling device for deslagging section
By using a multi-stage slag remover system and white water rotary separation technology, the problem of fiber recovery from slag and pulp during papermaking has been solved, improving fiber utilization and reducing resource waste and environmental pollution.
Patent Information
- Application Number
- CN202520678563.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-10
AI Technical Summary
The pulp and slag discharged during the papermaking process contain fibers, and direct discharge will cause environmental pollution and waste of resources.
A multi-stage slag remover system is adopted, including a feed tank, a first multi-stage slag remover, a transverse slag remover, and a second multi-stage slag remover. Through preliminary and final slag removal filtration, white water is pumped by a white water pump for rotary separation to achieve fiber recovery.
It improves fiber utilization, reduces fiber content in slurry, and reduces resource waste and environmental pollution.
Smart Images

Figure CN223936893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the papermaking field, specifically to a device for recycling fiber from tail residue in a slag removal section. Background Technology
[0002] The papermaking process often produces a portion of pulp and slurry, some of which contains fibers. If these fibers are directly discharged, it will cause environmental pollution and waste, as well as increase consumption. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a tail slag fiber return device for the slag removal section, so as to solve the above-mentioned problems.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a slag removal section tail slag fiber recycling device, comprising a feeding tank, a first multi-stage slag remover, a transverse slag remover, a second multi-stage slag remover, a white water tank, a slag trough, and a good pulp tank; the feed inlet of the first multi-stage slag remover is connected to the discharge end of the feeding tank, and the bottom slag outlet of the first multi-stage slag remover is connected to the feed inlet of the transverse slag remover; the water inlet of the transverse slag remover is connected to the water outlet of the white water tank, and the slag outlet of the transverse slag remover is connected to the slag inlet of the second multi-stage slag remover; the bottom of the second multi-stage slag remover receives the slag trough; the good pulp outlets of the first and second multi-stage slag removers are connected to the good pulp tank.
[0005] Preferably, the first multi-stage slag remover and the second multi-stage slag remover are five-stage slag removers.
[0006] Preferably, a first pumping motor is provided between the feed tank and the first multi-stage slag remover; a second pumping motor is provided between the white water tank and the transverse slag remover.
[0007] Preferably, the second multi-stage slag remover is inclined.
[0008] Preferably, a connecting bend is provided between the transverse slag remover and the second multi-stage slag remover, and the end of the connecting bend is perpendicular to the second multi-stage slag remover.
[0009] Preferably, a right-angle bend is provided between the first multi-stage slag remover and the transverse slag remover.
[0010] The main technical advantages of this invention are as follows: Preliminary slag removal and filtration are performed by the first multi-stage slag remover, allowing the good pulp to be directly sent from the good pulp inlet to the good pulp tank. The filtered slag enters the transverse slag remover, where white water is pumped from the white water tank. The slag rotates and separates within the transverse slag remover, and the resulting good pulp is automatically returned to the first multi-stage slag remover. After slag discharge, it is sent out from the good pulp inlet. The slag in the transverse slag remover then enters the second multi-stage slag remover for final slag removal. Through the cooperation of the transverse slag remover, the first multi-stage slag remover, and the second multi-stage slag remover, further fiber recovery is achieved, resulting in a lower fiber content in the slag and improved fiber utilization. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a front sectional view of the horizontal slag remover.
[0013] The attached diagram is labeled as follows: 1-feed tank, 11-first pumping motor, 2-first multi-stage slag remover, 3-transverse slag remover, 4-second multi-stage slag remover, 5-white water tank, 51-second pumping motor, 6-slag trough, 7-good slurry tank, 8-connecting bend, 9-right angle bend. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0015] In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0016] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.
[0017] This utility model provides a device for recycling fiber from tail slag in a slag removal section, such as... Figure 1-2As shown, the system includes a feed tank 1, a first multi-stage slag remover 2, a transverse slag remover 3, a second multi-stage slag remover 4, a white water tank 5, a slag trough 6, and a good pulp tank 7. The feed inlet of the first multi-stage slag remover 2 is connected to the discharge end of the feed tank 1, and the bottom slag outlet of the first multi-stage slag remover 2 is connected to the feed inlet of the transverse slag remover 3. The water inlet of the transverse slag remover 3 is connected to the water outlet of the white water tank 5, and the slag outlet of the transverse slag remover 3 is connected to the slag inlet of the second multi-stage slag remover 4. The bottom of the second multi-stage slag remover 4 receives the slag trough 6. The good pulp inlets of the first multi-stage slag remover 2 and the second multi-stage slag remover 4 are connected to the good pulp tank 7. Pool 7 is connected, and the first multi-stage slag remover 2 performs preliminary slag removal and filtration, allowing the good pulp to be directly sent from the good pulp outlet to the good pulp pool 7. The filtered slag enters the transverse slag remover 3, and the white water is pumped into the transverse slag remover 3 through the white water pool 5, causing the slag to rotate and separate in the transverse slag remover 3. The resulting good pulp is automatically returned to the first multi-stage slag remover 2, and after slag discharge, it is sent out from the good pulp outlet. The slag in the transverse slag remover 3 enters the second multi-stage slag remover 4 for final slag removal. Through the cooperation of the transverse slag remover 3, the first multi-stage slag remover 2 and the second multi-stage slag remover 4, further fiber recovery is achieved, the fiber content in the slag is reduced, and the fiber utilization rate is improved.
[0018] Preferably, the first multi-stage slag remover 2 and the second multi-stage slag remover 4 are five-stage slag removers, which have high slag removal efficiency and good economic benefits.
[0019] Preferably, a first pumping motor 11 is provided between the feed tank 1 and the first multi-stage slag remover 2; a second pumping motor 51 is provided between the white water tank 5 and the transverse slag remover 3.
[0020] Preferably, the second multi-stage slag remover 4 is inclined. Since there is a lot of slag, the inclined setting makes it easier to increase the time of rotation and filtration of the slag in the second multi-stage slag remover 4.
[0021] Preferably, a connecting bend 8 is provided between the transverse slag remover 3 and the second multi-stage slag remover 4. The end of the connecting bend 8 is perpendicular to the second multi-stage slag remover 4. By utilizing the perpendicularity of the end of the connecting bend 8 to the second multi-stage slag remover, it is convenient to provide kinetic energy for rotational separation inside the second multi-end slag remover.
[0022] Preferably, a right-angle bend 9 is provided between the first multi-stage slag remover 2 and the transverse slag remover 3.
[0023] The main technical advantages of this invention are as follows: Preliminary slag removal and filtration are performed by the first multi-stage slag remover, allowing the good pulp to be directly sent from the good pulp inlet to the good pulp tank. The filtered slag enters the transverse slag remover, where white water is pumped from the white water tank. The slag rotates and separates within the transverse slag remover, and the resulting good pulp is automatically returned to the first multi-stage slag remover. After slag discharge, it is sent out from the good pulp inlet. The slag in the transverse slag remover then enters the second multi-stage slag remover for final slag removal. Through the cooperation of the transverse slag remover, the first multi-stage slag remover, and the second multi-stage slag remover, further fiber recovery is achieved, resulting in a lower fiber content in the slag and improved fiber utilization.
[0024] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A device for recycling fiber from tailings in a slag removal section, characterized in that, The system includes a feed tank, a first multi-stage slag remover, a transverse slag remover, a second multi-stage slag remover, a white water tank, a slag trough, and a good pulp tank. The feed inlet of the first multi-stage slag remover is connected to the discharge end of the feed tank, and the bottom slag outlet of the first multi-stage slag remover is connected to the feed inlet of the transverse slag remover. The water inlet of the transverse slag remover is connected to the water outlet of the white water tank, and the slag outlet of the transverse slag remover is connected to the slag inlet of the second multi-stage slag remover. The bottom of the second multi-stage slag remover receives the slag trough. The good pulp outlets of the first and second multi-stage slag removers are connected to the good pulp tank.
2. The slag removal section tailings fiber recycling device as described in claim 1, characterized in that, The first multi-stage slag remover and the second multi-stage slag remover are both five-stage slag removers.
3. The slag removal section tailings fiber recycling device as described in claim 1, characterized in that, A first pumping motor is installed between the feed tank and the first multi-stage slag remover; a second pumping motor is installed between the white water tank and the transverse slag remover.
4. The slag removal section tailings fiber recycling device as described in claim 1, characterized in that, The second multi-stage slag remover is inclined.
5. The slag removal section tailings fiber recycling device as described in claim 4, characterized in that, A connecting bend is provided between the transverse slag remover and the second multi-stage slag remover, and the end of the connecting bend is perpendicular to the second multi-stage slag remover.
6. The slag removal section tailings fiber recycling device as described in claim 1, characterized in that, A right-angle bend is provided between the first multi-stage slag remover and the transverse slag remover.