Pulping and papermaking process and equipment

A technology for pulping and papermaking and technology, which is applied in the field of new pulping and papermaking technology to achieve the effects of reducing costs, reducing processing steps, and shortening processing time
CN101613971BInactive Publication Date: 2011-08-31山东中科润环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
山东中科润环保科技有限公司
Publication Date
2011-08-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to pulping and papermaking technology, in particular to a novel pulping and papermaking process at normal temperature and normal pressure, which mainly comprises that a raw material added with a pulping medicament is subjected to at least once compression or expansion process to form pulp, namely the pretreated raw material is continuously introduced into a reaction device which comprises at least one pulping section and is provided with a screw propelling device, and the pulping medicament is added in the raw material moving process. The production process replaces the prior process steps such as raw material fine cutting, cooking and the like, reduces the dosage of strong acid or strong base treatment medicaments, realizes the up to standard emission of industrial wastewater and the pulping and papermaking reaction at normal temperature and normal pressure, reduces energy consumption and achieves the aims of saving energy and reducing emission.
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Description

technical field

[0001] The invention relates to pulping and papermaking technology, in particular to the pulping and papermaking technology of fiber-containing straw plants, and in particular to a new pulping and papermaking technology under normal temperature and pressure. Background technique

[0002] The traditional papermaking straw pulp production process generally adopts alkaline chemical pulping. The treatment of straw pulp black liquor produced by this method is the focus of environmental protection work. The treatment technology of straw pulp black liquor has become a recognized problem in the world. The recognized treatment The best way for wheat straw pulp black liquor is alkali recovery, but due to disadvantages such as poor water filtration performance of wheat straw pulp, high viscosity of black liquor, high silicon content, etc., the alkali recovery technology is extremely difficult. For small or even medium-sized enterprises However, due to the large investme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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