Drum vacuum pulp washer
By installing a cutting screen and spraying system in a drum vacuum washer, the problem of low material layer crushing efficiency was solved, achieving efficient crushing and dilution of the pulp and improving the efficiency of the conveying process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA UNITED EQUIP GRP ANYANG MASCH CO LTD
- Filing Date
- 2025-09-28
- Publication Date
- 2026-07-31
AI Technical Summary
In existing drum vacuum washing machines, after the material layer is stripped from the vacuum washing process, it directly enters the conveying screw crusher, and the crushing efficiency needs to be improved.
A cutting screen is installed in the conveying trough, and the intermittent vibration of the cutting screen is achieved through the cooperation of the different diameter wheel and the top block. Combined with the spray pipe and spray head, the slurry is initially cut and diluted. The smooth feeding of the slurry is achieved by the cooperation of the different diameter wheel and the top block.
It improves the crushing efficiency of slurry, shortens the crushing process, and enhances the dilution effect during the slurry transportation process.
Smart Images
Figure CN224578533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking technology, and in particular to a drum vacuum washing machine. Background Technology
[0002] Drum vacuum pulp washeres are typically used in series to achieve multi-stage, high-efficiency pulp washing. However, the feed pulp concentration for drum vacuum pulp washeres is mainly between 0.8% and 1.5%, therefore the pulp layer after vacuum washing often needs to be crushed and diluted before entering the next drum vacuum pulp washer. In existing drum vacuum pulp washers, the pulp layer after vacuum washing is stripped by a pulp stripper and directly enters the conveyor screw, where it is crushed and transported. The crushing efficiency needs further improvement. Utility Model Content
[0003] This utility model proposes a drum-type vacuum pulp washing machine, which uses a cutting screen to initially cut the pulp, facilitating subsequent crushing and conveying, while improving crushing efficiency.
[0004] The technical solution of this utility model is implemented as follows: A drum vacuum washing machine includes a shell, a rotating drum is arranged inside the shell, a stripping scraper is arranged on the stripping side of the rotating drum, the discharge end of the stripping scraper is located above the conveying trough, a conveying spiral shaft is arranged inside the conveying trough, a cutting screen is arranged at the upper end of the conveying trough, a different diameter wheel is arranged on the conveying spiral shaft, and a top block that cooperates with the different diameter wheel is fixed at the lower end of the cutting screen.
[0005] Furthermore, a guide rod is fixed to the upper edge of the conveying trough, the cutting mesh slides vertically along the guide rod, and a support spring is provided on the guide rod on the lower side of the cutting mesh.
[0006] Furthermore, a spray pipe is installed above the cutting mesh, and a downward-facing spray head is installed on the spray pipe.
[0007] Furthermore, the variable diameter wheel is located at the end of the conveying screw shaft.
[0008] The beneficial effects of this utility model are: This invention uses a cutting mesh to preliminarily cut the slurry after vacuum washing. The different diameter wheels and top block intermittently vibrate the cutting mesh, facilitating the smooth feeding of the slurry. This preliminary cutting of the slurry facilitates subsequent crushing and conveying, while shortening the crushing process and improving crushing efficiency.
[0009] This invention, through the setting of spray pipes and spray heads, washes the cutting mesh with dilution water on the one hand, and the dilution water falls into the conveying tank on the other hand, so as to carry out preliminary stirring and dilution while the slurry is being conveyed, thus shortening the subsequent slurry dilution process. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of part A in the image.
[0012] 1. Outer shell, 2. Rotary drum, 3. Slurry scraper, 4. Conveying trough, 5. Conveying spiral shaft, 6. Guide rod, 7. Cutting mesh, 8. Support spring, 9. Different diameter wheel, 10. Top block, 11. Spray pipe, 12. Spray head. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] Example 1 like Figure 1 and 2 As shown, a drum-type vacuum washing machine includes a housing 1, inside which a rotating drum 2 is installed. The rotating drum 2 is driven to rotate by a motor and is divided into a vacuum washing zone and a stripping and exhaust zone. A stripping scraper 3 is fixed inside the housing 1 on the stripping side of the rotating drum 2, and the discharge end of the stripping scraper 3 is located above the conveying trough 4.
[0015] A motor-driven conveying spiral shaft 5 is installed inside the conveying trough 4. A guide rod 6 is fixed to the upper edge of the conveying trough 4. A cutting mesh 7 is installed at the upper end of the conveying trough 4. The cutting mesh 7 slides vertically along the guide rod 6. A support spring 8 is fitted on the guide rod 6 below the cutting mesh 7.
[0016] Both ends of the conveying spiral shaft 5 are fixed with reducing wheels 9, and the lower end of the cutting mesh 7 is fixed with a top block 10 that cooperates with the reducing wheels 9. The reducing wheels 9 rotate synchronously with the conveying spiral shaft 5. When the longer end of the reducing wheel 9 rotates to the top block 10, it pushes the top block 10 to move upward.
[0017] The material layer on the drum 2 enters the upper side of the cutting screen 7 through the peeling scraper 3. After being cut by the cutting screen 7, it falls into the conveying trough 4 and is further conveyed and crushed by the conveying screw shaft 5. As the conveying screw shaft 5 rotates, when the longer end of the differential wheel 9 rotates to the top block 10, it pushes the top block 10 and the cutting screen 7 to move upward. This end moves away from the top block 10. Due to self-repositioning, the top block 10 and the cutting screen 7 intermittently vibrate the cutting screen 7, which is conducive to the smooth discharge of the material layer on the cutting screen 7.
[0018] Example 2 This embodiment is basically the same as Embodiment 1, except that: Figure 1 As shown, a spray pipe 11 is fixed above the cutting mesh 7, and a downward-facing spray head 12 is fixed on the spray pipe 11. Diluent is sprayed onto the cutting mesh 7 through the spray pipe 11 and the spray head 12, which washes the cutting mesh 7 and at the same time the diluent falls into the conveying tank 4. The conveying spiral shaft 5 can simultaneously stir and dilute the slurry while conveying it.
[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drum-type vacuum washing machine, comprising a shell, a rotating drum disposed within the shell, a stripping scraper disposed on the stripping side of the rotating drum, the discharge end of the stripping scraper being located above a conveying trough, and a conveying screw shaft disposed within the conveying trough, characterized in that: A cutting mesh is installed at the upper end of the conveying trough, a different diameter wheel is installed on the conveying spiral shaft, and a top block that cooperates with the different diameter wheel is fixed at the lower end of the cutting mesh.
2. A drum vacuum pulp washer according to claim 1, characterized in that A guide rod is fixed to the upper edge of the conveying trough. The cutting mesh slides vertically along the guide rod, and a support spring is provided on the guide rod on the lower side of the cutting mesh.
3. A drum vacuum pulp washer according to claim 1 or 2, characterized in that A spray pipe is installed above the cutting mesh, and a downward-facing spray head is installed on the spray pipe.
4. A drum vacuum pulp washer according to claim 1, characterized in that: The reducing wheel is located at the end of the conveying screw shaft.