Method for rapidly producing paper pulp from straw, paper pulp treatment and application
A technology of refining and pulping, which is applied in the field of pulping and papermaking, and can solve the problems of low pulp yield
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0069] The embodiment of the present invention specifically includes the following steps:
[0070] The first step is to select the rice straw harvested in the current season. After drying and storing, its moisture content is about 27%. Use the splitting unit to cut off the filaments. Most of the straws are 4-6CM in length. Spray tap water until the moisture content is 41%. figure 2 as shown in A;
[0071] In the second step, the equipment is transferred to the puffing machine for two consecutive puffing directly. After the two puffing, the water content is 33% in the test to obtain puffed straw fibers; after puffing by the puffing machine, the straw fibers are torn longitudinally, and the tissue becomes loose, figure 2 as shown in B;
[0072] The third step is to replenish water to 40%, and the equipment is transported to the high-consistency refiner for refining once to obtain new pulp, such as figure 2 as shown in C;
[0073] In the fourth step, the new pulp obtained b...
Embodiment 2
[0074] Embodiment 2: The embodiment of the present invention uses fresh rice stalks to prepare paper pulp and egg boxes, including:
[0075] The first step is the crushing and drying of rice straw: the fresh rice straw with a moisture content of 74% is cut and crushed into straw sections of about 4-7 cm by a crushing fan unit, and dried with a tumble dryer with a blower to Moisture content 45%;
[0076] The second step is the expansion of rice straw: the rice straw that has been crushed and kneaded is sent to the puffing unit through the conveyor belt, and puffed once. The moisture content of the puffed straw fiber is 37%;
[0077] The third step is refining by the refining unit: the puffed rice straw fibers are directly sent to the high-consistency refiner through the conveyor belt, and new pulp is obtained after refining once. It is measured that the moisture content after rubbing and grinding is about 31 %,Such as image 3 the A;
[0078] The fourth step is the post-trea...
Embodiment 3
[0079] Embodiment 3: The embodiment of the present invention uses reed straw to prepare pulp and produce industrial packaging including:
[0080] The first step is the crushing of reed straw: the reed straw collected and stored is crushed and kneaded into straw sections of about 3-5 cm by a grinder, and water is replenished, such as Figure 4 the A;
[0081] The second step is the expansion of reed straw: the crushed and shredded straw (with a moisture content of about 15%) is sent to the extruder unit through the conveyor belt. After the first puffing process, it passes through the conveyor belt and enters the second puffing process. The moisture content of the puffed straw fiber is 34%;
[0082] The third step, high-consistency refining: add water to the secondary puffed straw fiber to a total moisture content of about 40%, and directly send it to the high-consistency refiner through a conveyor belt, and obtain new pulp after refining, and measure the pulp after kneading an...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Length | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More