Enhanced paper pulp molding production method

A technology of pulp molding and production methods, applied in neural learning methods, papermaking, 3D modeling, etc., can solve problems such as large fluctuations in product quality, poor fiber strength and toughness, and poor fluidity

Inactive Publication Date: 2019-06-14
杭州西红柿环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the pulp fibers used in the existing pulp molding production process have poor strength and toughness, resulting in poor product strength
At the same time, during the production process, the filtered pulp fiber has a high moisture content and too high a concentration, which leads to poor fluidity and cannot be gathered into the pulp pool, and the power consumption of pumping to the workshop is large; the concentration of the recovered pulp fluctuates greatly, and the ingredients in the pulping section cannot be accurately controlled. Adding the ratio will cause large fluctuations in product quality, which is not conducive to stabilizing product quality

Method used

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  • Enhanced paper pulp molding production method

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preparation example Construction

[0116] In step S103, the preparation method of the pulp fiber provided by the embodiment of the present invention includes:

[0117] (1) The eucalyptus wood raw material is peeled and chipped to become wood chips, and sent to a negative pressure mixing bin with a temperature of 55±5°C and a pressure below -10kpa for decompression and exhaust for 10 to 15 minutes; Under the state, excessively add the cooking agent and keep it for 45-50 minutes; then return to the normal temperature and pressure state, and discharge the excess cooking agent.

[0118] (2) Send the wood chips treated in step (1) into the cooking equipment according to the conventional cooking curve to raise the temperature for 95-100 minutes, the highest temperature is 145-155 ° C, and keep warm for 160-170 minutes for cooking. After the cooking is completed, spray the slurry. Washing, sorting and sieving are carried out as usual to obtain good pulp and black liquor, and the black liquor enters the alkali recovery...

Embodiment 1

[0129] The enhanced pulp molding provided by the invention is used to produce disposable paper cups, and the operation process is as follows:

[0130] Determine the design parameters of pulp molding and set the production parameters of pulp molding.

[0131] The three-dimensional model of the disposable paper cup of the pulp molded product is designed by using the three-dimensional design software.

[0132] Use conveying equipment to convey pulp fiber, water and polyacrylamide resin solution.

[0133] Use a mixer to stir and mix the input raw materials, use a continuous drying furnace to pass through different temperature zones, and dry until the moisture content drops to about 10% to 12%.

[0134] The thermocompression molding operation is performed according to the designed three-dimensional model of the pulp molded product using thermocompression molding equipment.

[0135] The device display can display and store a 3D model of the designed pulp molded product.

[0136] ...

Embodiment 2

[0144] Production step is the same as embodiment 1, and the preparation method difference of pulp fiber is: the NaOH concentration is adjusted to 3.9% in the cooking agent of step (1). The cooking equipment in step (2) is a batch cooker without liquid medicine circulation.

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Abstract

The invention belongs to the technical field of paper pulp molding production. The invention discloses an enhanced paper pulp molding production method and system, and the method comprises: determining a paper pulp molding design parameter, and setting a paper pulp molding production parameter; using three-dimensional design software to design a three-dimensional model of a paper pulp molding product; and conveying paper pulp fibers, water and a polyacrylamide resin solution by using a material conveying equipment; stirring and mixing the input raw materials by utilizing a stirrer, and dryingthe mixture in different temperature zones in a continuous drying furnace until the moisture content is reduced to be about 10%-12%; and performing hot-press molding according to the three-dimensionalmodel of the designed paper pulp molding product by utilizing hot press molding equipment. According to the method, the fiber strength can be improved, and the compatibility between the fiber interface and the polymer can be improved; after the modified paper pulp fiber and a thermoplastic material are fused and blended, the strength and the toughness of the material can be greatly improved, andthe toughening effect of the brittle polymer is especially obvious.

Description

technical field [0001] The invention belongs to the technical field of pulp molding production, in particular to the technical field of an enhanced pulp molding production method. Background technique [0002] Pulp molding is a three-dimensional papermaking technique. It uses waste paper, wood pulp or other fiber materials as raw materials, and molds pulp products of a certain shape with a special mold on a molding machine. It has four advantages: raw materials are waste paper, wood pulp or other fibrous materials, including cardboard, waste carton paper, waste white edge paper, wood pulp or bamboo pulp, bagasse pulp, etc., with a wide range of sources; Slurry, adsorption molding, drying and setting processes are completed, the process is short, and it is harmless to the environment; it can be recycled and reused; its volume is smaller than that of foamed plastics, it can be stacked, it is light in weight, and it is convenient for transportation. In addition to being used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/00D21C3/02D21C3/22D21D5/02D21C5/00G06T17/00G06F16/2458G06F16/28G06N3/04G06N3/08
Inventor 王建华陈波管正光何永梁丁锦晖杨凡薛朋张袆韦帮镇
Owner 杭州西红柿环保科技有限公司
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