A waste paper recycling device with dust removal function
By combining spray dust suppression and negative pressure dust removal devices with gas-water separation technology, the hazards of dust and water vapor in the waste paper pulping process are solved, achieving dust removal throughout the entire process and protecting the health of operators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JINTIAN PAPER CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-12
AI Technical Summary
Recycling waste paper generates a large amount of dust and water vapor during the pulping process, which endangers the health of operators.
The system employs a spray dust suppression device and a negative pressure dust removal device, which remove dust and water vapor through spray settling and negative pressure suction, respectively, and combines gas-water separation technology to achieve dust removal throughout the entire process.
It effectively removes dust and water vapor during the waste paper pulping process, ensuring the health of operators.
Smart Images
Figure CN224351016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking raw material processing technology, and in particular to a waste paper pulping device with dust removal function. Background Technology
[0002] Recycling waste paper and turning it into recycled paper for reuse in industrial production and daily life has multiple positive benefits, including conserving natural resources, reducing production costs, promoting a circular economy, and raising public awareness of environmental protection. Before pulping, recycled waste paper undergoes steps such as stacking and storage, handling, bundling, conveying, and pulping to produce the pulp needed for recycled paper production. These steps inevitably generate industrial dust, including inorganic dust, organic dust, and mixed dust, as well as water vapor. Furthermore, bacteria can grow during the stacking process of recycled waste paper. If dust is not controlled, it will inevitably harm the health of operators in the long run. Utility Model Content
[0003] In view of the problem that existing technologies generate a large amount of dust and water vapor during the pulping process of recycled waste paper, this utility model provides a waste paper pulping device with dust removal function.
[0004] This utility model provides the following technical solution: a waste paper recycling pulping device with dust removal function, including a conveyor and a pulper installed at the discharge end of the conveyor, and also including a spray dust suppression device and a negative pressure dust removal device;
[0005] The spray dust suppression device includes a spray pipe installed above the feeding end of the conveyor, a water mist nozzle installed on the spray pipe, and a fogging machine connected to the spray pipe.
[0006] The negative pressure dust removal device includes a dust cover enclosing the conveyor and pulper, and conveyor dust removal pipes and pulper dust removal pipes connected to the dust cover; multiple conveyor dust removal pipes are arranged above the conveyor, and the conveyor dust removal pipes are connected to a first fan, which is connected to a dust collector; multiple pulper dust removal pipes are arranged above the pulper, and the pulper dust removal pipes are connected to an air-water separator, which is connected to a second fan.
[0007] Preferably, the conveyor includes a horizontal section and an inclined section, and the dust cover corresponding to the horizontal section is connected to the ground and is equipped with a movable door.
[0008] Preferably, the horizontal section is equipped with a wire cutter.
[0009] Preferably, the pulper is equipped with a sedimentation well and a washing tank, both of which are covered by the dust cover.
[0010] The beneficial effects of this utility model are: by removing dust generated during the spray settling feeding process, separating dust generated during the negative pressure suction conveying process and separating dust and water vapor generated during the pulping process, the entire process of dust removal for waste paper pulping is completed, ensuring the health of operators. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of one embodiment of a pulping apparatus.
[0012] Figure 2 This is a schematic diagram of one embodiment of a dust cover.
[0013] Attached reference numerals: 11-Horizontal section, 12-Inclined section, 13-Wire shearer, 20-Pulverizer, 21-Sludge well, 22-Sludge washing tank, 31-Spray pipe, 32-Fogger, 41-Dust cover, 411-Moving door, 42-Conveyor dust removal pipe, 43-Pulverizer dust removal pipe, 44-First fan, 45-Dust collector, 46-Gas-water separator, 47-Second fan. Detailed Implementation
[0014] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0015] This utility model provides, for example Figure 1-2 The illustrated waste paper pulping device with dust removal function includes a conveyor and a pulper installed at the discharge end of the conveyor.
[0016] The conveyor can be a chain conveyor, including a horizontal section 11 and an inclined section 12. The horizontal section 11 is also equipped with a wire cutter 13. Bundles of waste paper are delivered to the horizontal section 11 by a forklift. After the wire cutter 13 cuts the bundling wire, the paper is lifted by the inclined section 12 and sent to the pulper 20 for pulping. The pulper 20 is also equipped with a sedimentation well 21 and a slag washing tank 22 to further process the waste slag discharged from the pulper 20 and recover the pulp.
[0017] A dust suppression spray device is installed at the feeding end of the conveyor. The dust suppression spray device includes a spray pipe 31, water mist nozzles installed on the spray pipe 31, and a fogging machine 32 connected to the spray pipe 31. The spray pipe 31 is located above the feeding end of the conveyor and can be connected in a U-shape, with multiple water mist nozzles arranged sequentially along the axial direction of the pipe; the fogging machine 32 can be a high-pressure fogging machine. The fogging machine 32 generates water mist, which is transported to the spray pipe 31 and sprayed near the feeding end of the conveyor to suppress dust generated during the feeding process.
[0018] The pulping device also includes a negative pressure dust removal device. The negative pressure dust removal device includes a dust cover 41 that covers the conveyor, pulper 20, sedimentation well 21, and washing tank 22, as well as a conveyor dust removal pipe 42 and a pulper dust removal pipe 43 connected to the dust cover 41. The dust cover 41 is used to prevent the spread of dust generated by waste paper in the conveyor and pulping process.
[0019] Multiple conveyor dust collection pipes 42 are installed above the conveyor and connected to a first fan 44, which is also connected to a dust collector 45. The first fan 44 generates negative pressure to draw the dust generated during the conveying process to the dust collector 45 for air-dust separation. The dust collector 45 can be a bag filter. Due to the large amount of dust in the horizontal section 11 of the conveyor, the dust cover 41 and the area corresponding to the horizontal section 11 are connected to the ground to prevent dust from spreading. The dust cover 41 is equipped with a movable door 411, allowing forklifts to enter the dust cover 41 to push loosely falling recycled waste paper into the conveyor.
[0020] Multiple dust collection pipes 43 are installed above the pulper 20, and each dust collection pipe 43 is connected to a gas-liquid separator 46, which is connected to a second blower 47. The second blower 47 generates negative pressure, drawing the dust and water vapor generated during the operation of the pulper 20, sedimentation well 21, and washing tank 22 into the gas-liquid separator 46 for gas-liquid separation. The dust remains in the liquid and is discharged from the bottom of the gas-liquid separator 46 to the wastewater treatment plant, while the gas is discharged from the second blower 47.
[0021] The above describes one or more embodiments of this utility model in a relatively specific and detailed manner, but it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A waste paper pulping device with dust removal function, comprising a conveyor and a pulper disposed at the discharge end of the conveyor, characterized in that, It also includes spray dust suppression devices and negative pressure dust removal devices; The spray dust suppression device includes a spray pipe installed above the feeding end of the conveyor, a water mist nozzle installed on the spray pipe, and a fogging machine connected to the spray pipe. The negative pressure dust removal device includes a dust cover enclosing the conveyor and pulper, and conveyor dust removal pipes and pulper dust removal pipes connected to the dust cover; multiple conveyor dust removal pipes are arranged above the conveyor, and the conveyor dust removal pipes are connected to a first fan, which is connected to a dust collector; multiple pulper dust removal pipes are arranged above the pulper, and the pulper dust removal pipes are connected to an air-water separator, which is connected to a second fan.
2. The waste paper pulping device with dust removal function according to claim 1, characterized in that, The conveyor includes a horizontal section and an inclined section. The dust cover corresponding to the horizontal section is connected to the ground and is equipped with a movable door.
3. The waste paper pulping device with dust removal function according to claim 2, characterized in that, A wire cutter is installed in the horizontal section.
4. The waste paper pulping device with dust removal function according to claim 1, characterized in that, The pulper is equipped with a sedimentation well and a washing tank, both of which are covered by the dust cover.