Process for producing biomass fiber molding material

Abstract

Disclosed is a process for producing biomass fiber molding material, and relates to the technical field of biological fibers. In the present disclosure, pretreated dried leaf fibers are softened by being subjected to a soaking process; the leaf fibers are grounded through a high-concentration grinder to obtain primary pulp of biomass fiber molding material; and then excess water is removed from the primary pulp of biomass fiber molding material through a pulp squeezing thickener to obtain the biomass fiber molding material. The primary pulp of biomass fiber molding material obtained by the production process of the present disclosure meets the specification for manufacturing safe paper, water is recycled in the production process to reduce water resource consumption; and the adding of auxiliary agents is reduced, which can reduce the cleaning of the product and improve the utilization rate of the leaf fibers.

1 . A process for producing biomass fiber molding material, comprising the following steps:
 S1. performing a soaking process by pouring dried leaf fibers into a soaking tank, and adding clear water into the soaking tank to soak the leaf fibers for 20-30 minutes;   S2 manually taking out the leaf fibers subjected to the soaking process, and putting the leaf fibers into a conveying mechanism to be conveyed into a grinding device for uniform grinding and kneading to form primary pulp of biomass fiber molding material;   S3. passing the primary pulp of biomass fiber molding material obtained by grinding in S2 through a screen to detect fineness of the primary pulp of biomass fiber molding material, wherein a proper amount of clear water is added during grinding;   S4. performing secondary grinding on coarse primary pulp of biomass fiber molding material screened out in S3 to form primary pulp that is in accord with the conditional quality, wherein a proper amount of clear water is added during grinding;   S5. conveying the primary pulp of biomass fiber molding material, which is detected as proper through a filter screen, to a compression device through the conveying mechanism for concentration process so as to obtain biomass fiber molding material; and   S6. sealing and packaging the biomass fiber molding material subjected to the concentration process in S5.   
     
     
         2 . The process for producing biomass fiber molding material of  claim 1 , wherein the soaking tank is connected with a water reservoir through a pipeline. 
     
     
         3 . The process for producing biomass fiber molding material of  claim 1 , wherein the conveying mechanism is a screw pipeline conveying mechanism with a tumbling gear. 
     
     
         4 . The process for producing biomass fiber molding material of  claim 1 , wherein the grinding device is a high-concentration grinder. 
     
     
         5 . The process for producing biomass fiber molding material of  claim 1 , wherein the compression device is a pulp squeezing thickener, and water content of the primary pulp of biomass fiber molding material after dehydration and concentration is 20-25%. 
     
     
         6 . The process for producing biomass fiber molding material of  claim 5 , wherein the pulp press thickener is connected with the water reservoir through a pipeline. 
     
     
         7 . The process for producing biomass fiber molding material of  claim 1 , wherein the leaf fibers are pretreated by removing mesophyll. 
     
     
         8 . The process for producing biomass fiber molding material of  claim 1 , wherein raw materials for the leaf fibers adopts mature leaves of broad leaf materials, preferably one or more of poplar leaves, ginkgo leaves, yulan magnolia leaves, locust tree leaves and the like.