阅读说明：本技术 一种具有废物处理功能的精制棉清洁生产工艺 (Clean production process of purified cotton with waste treatment function ) 是由 王志建 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种具有废物处理功能的精制棉清洁生产工艺,步骤一：将棉短绒通过开棉机进行开松和分解,使其成为成絮绒状,再使用除尘机,利用风力将部分重质杂物剔除,得到粗制棉；再通过浸渍机将配制的蒸煮辅剂碱液与棉短绒原料进行浸碱处理；步骤二：将步骤一中浸碱完全的棉短绒原料放置到蒸煮器内,进行蒸煮脱脂的工序,蒸煮完成以后,蒸煮器内的蒸煮辅剂碱液可以回收存放,本发明提出的一种具有废物处理功能的精制棉清洁生产工艺能够多次回收蒸煮辅剂碱液,并且将蒸煮辅剂碱液集中回收反复使用,并且将蒸煮辅剂碱液输送至污水处理站进行环保处理,使得精制棉生产更换的绿色环保,并且在一定程度上降低了生产成本。(The invention discloses a clean production process of purified cotton with a waste treatment function, which comprises the following steps: opening and decomposing the cotton linters into flocculent linters through a cotton opener, and removing part of heavy impurities by using a dust remover by using wind power to obtain coarse cotton; then, carrying out alkali leaching treatment on the prepared cooking auxiliary agent alkali liquor and the cotton linter raw material by using a dipping machine; step two: the purified cotton cleaning production process with the waste treatment function can recover the alkali liquor of the cooking auxiliary agent for multiple times, intensively recover and repeatedly use the alkali liquor of the cooking auxiliary agent, and convey the alkali liquor of the cooking auxiliary agent to a sewage treatment station for environment-friendly treatment, so that the purified cotton is environment-friendly to produce and replace, and the production cost is reduced to a certain extent.)

1. A clean production process of purified cotton with a waste treatment function is characterized in that: the method comprises the following steps: opening and decomposing the cotton linters into flocculent linters through a cotton opener, and removing part of heavy impurities by using a dust remover by using wind power to obtain coarse cotton; then, carrying out alkali leaching treatment on the prepared cooking auxiliary agent alkali liquor and the cotton linter raw material by using a dipping machine;

step two: placing the cotton linter raw material completely subjected to alkali leaching in the step one into a digester, and performing a process of digestion and degreasing, wherein after the digestion is finished, the digestion auxiliary agent alkali liquor in the digester can be recycled and stored, and is used for alkali leaching treatment of the cotton linter raw material of the next batch together with the digestion auxiliary agent alkali liquor prepared in the step one; after all the cotton linters raw material is subjected to alkali leaching treatment, intensively conveying the alkali liquor of the cooking auxiliary agent to a sewage treatment station for purification treatment;

step three: rolling the cotton linter raw material obtained in the step two, extruding redundant cooking auxiliary agent alkali liquor, storing the extruded cooking auxiliary agent alkali liquor and the cooking auxiliary agent alkali liquor recovered in the step two together, and dehydrating through dehydrating equipment;

step four: sending the cotton linter raw material obtained in the step three into a mixer, then falling into a heating screw to increase the temperature of the cotton linter raw material to 35-55 ℃, conveying the cotton linter raw material into an electrolytic oxygen reaction vessel, adding an auxiliary agent at the temperature of 75-95 ℃, and reacting for 10-15 min to obtain a cellulose semi-finished product;

step five: and (3) adding the cellulose semi-finished product obtained in the fourth step, a protective agent and a catalyst into a reaction kettle for reaction, then carrying out a deslagging process, a screening process and a drying process, and finally packaging to obtain the refined cotton.

2. The clean production process of refined cotton with waste treatment function as claimed in claim 1, characterized in that: when the alkali leaching treatment is carried out on the cooking auxiliary agent alkali liquor and the cotton linter raw material in the step one, a stirring device is required to be used for stirring, so that the alkali leaching effect is ensured.

3. The clean production process of refined cotton with waste treatment function as claimed in claim 1, characterized in that: the auxiliary agents in the fourth step comprise bleaching aids, bleaching agents and catalysts.

4. The clean production process of refined cotton with waste treatment function as claimed in claim 1, characterized in that: and step two and step three, when the recovered cooking auxiliary agent alkali liquor is put into the next batch of cotton linters raw material for use, filtering, and filtering impurities in the cooking auxiliary agent alkali liquor.

5. The clean production process of refined cotton with waste treatment function as claimed in claim 1, characterized in that: the electrolytic oxygen reaction vessel in the fourth step has an ultraviolet ray emission function.

Technical Field

The invention belongs to the technical field of clean production of purified cotton, and particularly relates to a clean production process of purified cotton with a waste treatment function.

Background

The refined cotton is white floccule which is even and loose and has no impurities such as wood chips, bamboo chips, silt, oil stains, metal objects and the like. The raw material is cotton linter, and the main chemical components are cellulose, lignin and hemicellulose. It is composed of 3 elements of carbon, hydrogen and oxygen. The refined cotton is non-toxic, tasteless and easy to absorb water, is a main material for manufacturing ether cellulose (such as CMC, HEC, HPMC, MC and the like), nitrocellulose (nitrocellulose) and cellulose acetate, and is widely applied to various fields of food, medicine, daily chemicals, plastics, electronics, paper making, metallurgy, aerospace and the like. A large amount of waste can be generated in the existing clean production process of the refined cotton, and the waste cannot be treated in time, so that the production process is not green enough.

Disclosure of Invention

The invention aims to provide a clean production process of refined cotton with a waste treatment function, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a clean production process of purified cotton with a waste treatment function comprises the following steps: opening and decomposing the cotton linters into flocculent linters through a cotton opener, and removing part of heavy impurities by using a dust remover by using wind power to obtain coarse cotton; then, carrying out alkali leaching treatment on the prepared cooking auxiliary agent alkali liquor and the cotton linter raw material by using a dipping machine;

step two: placing the cotton linter raw material completely subjected to alkali leaching in the step one into a digester, and performing a process of digestion and degreasing, wherein after the digestion is finished, the digestion auxiliary agent alkali liquor in the digester can be recycled and stored, and is used for alkali leaching treatment of the cotton linter raw material of the next batch together with the digestion auxiliary agent alkali liquor prepared in the step one; after all the cotton linters raw material is subjected to alkali leaching treatment, intensively conveying the alkali liquor of the cooking auxiliary agent to a sewage treatment station for purification treatment;

step three: rolling the cotton linter raw material obtained in the step two, extruding redundant cooking auxiliary agent alkali liquor, storing the extruded cooking auxiliary agent alkali liquor and the cooking auxiliary agent alkali liquor recovered in the step two together, and dehydrating through dehydrating equipment;

step four: sending the cotton linter raw material obtained in the step three into a mixer, then falling into a heating screw to increase the temperature of the cotton linter raw material to 35-55 ℃, conveying the cotton linter raw material into an electrolytic oxygen reaction vessel, adding an auxiliary agent at the temperature of 75-95 ℃, and reacting for 10-15 min to obtain a cellulose semi-finished product;

step five: and (3) adding the cellulose semi-finished product obtained in the fourth step, a protective agent and a catalyst into a reaction kettle for reaction, then carrying out a deslagging process, a screening process and a drying process, and finally packaging to obtain the refined cotton.

Preferably, when the alkali liquor of the cooking auxiliary agent and the cotton linter raw material are subjected to alkali leaching treatment in the step one, a stirring device is required to be used for stirring, so that the alkali leaching effect is ensured.

Preferably, the auxiliary agents in step four include a bleaching aid, a bleaching agent and a catalyst.

Preferably, the lye of the cooking auxiliary recovered in step two and step three is subjected to a filtration treatment when being put into the next batch of cotton linters raw material for use, and impurities in the lye of the cooking auxiliary are filtered.

Preferably, the electrolytic oxygen reaction vessel in the fourth step has an ultraviolet light emitting function.

Compared with the prior art, the invention has the beneficial effects that: the clean production process of the refined cotton with the waste treatment function provided by the invention can be used for recovering the alkali liquor of the cooking auxiliary agent for multiple times, intensively recovering the alkali liquor of the cooking auxiliary agent for repeated use, and conveying the alkali liquor of the cooking auxiliary agent to a sewage treatment station for environment-friendly treatment, so that the production and replacement of the refined cotton are environment-friendly, and the production cost is reduced to a certain extent.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: a clean production process of purified cotton with a waste treatment function comprises the following steps: opening and decomposing the cotton linters into flocculent linters through a cotton opener, and removing part of heavy impurities by using a dust remover by using wind power to obtain coarse cotton; then, carrying out alkali leaching treatment on the prepared cooking auxiliary agent alkali liquor and the cotton linter raw material by using a dipping machine;

step two: placing the cotton linter raw material completely subjected to alkali leaching in the step one into a digester, and performing a process of digestion and degreasing, wherein after the digestion is finished, the digestion auxiliary agent alkali liquor in the digester can be recycled and stored, and is used for alkali leaching treatment of the cotton linter raw material of the next batch together with the digestion auxiliary agent alkali liquor prepared in the step one; after all the cotton linters raw material is subjected to alkali leaching treatment, intensively conveying the alkali liquor of the cooking auxiliary agent to a sewage treatment station for purification treatment;

step three: rolling the cotton linter raw material obtained in the step two, extruding redundant cooking auxiliary agent alkali liquor, storing the extruded cooking auxiliary agent alkali liquor and the cooking auxiliary agent alkali liquor recovered in the step two together, and dehydrating through dehydrating equipment;

step four: sending the cotton linter raw material obtained in the step three into a mixer, then falling into a heating screw to increase the temperature of the cotton linter raw material to 35-55 ℃, conveying the cotton linter raw material into an electrolytic oxygen reaction vessel, adding an auxiliary agent at the temperature of 75-95 ℃, and reacting for 10-15 min to obtain a cellulose semi-finished product;

step five: and (3) adding the cellulose semi-finished product obtained in the fourth step, a protective agent and a catalyst into a reaction kettle for reaction, then carrying out a deslagging process, a screening process and a drying process, and finally packaging to obtain the refined cotton.

In this embodiment, preferably, when the alkali-leaching treatment is performed on the cooking auxiliary agent alkali liquor and the cotton linter raw material in the step one, a stirring device needs to be used for stirring, so as to ensure the alkali-leaching effect.

In this embodiment, the preferred, adjuvants in step four include a bleaching aid, a bleaching agent and a catalyst.

In this embodiment, preferably, the lye of the cooking auxiliary recovered in the second step and the third step is filtered when it is used for feeding the next batch of cotton linters raw material, and the impurities in the lye of the cooking auxiliary are filtered.

In this embodiment, it is preferable that the electrolytic oxygen reaction vessel in the fourth step has an ultraviolet ray emitting function.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.