Environmentally-friendly paper making and pulping technique and system with high yield

Abstract

The application of the invention provides an environmentally-friendly paper making and pulping technique with high yield, which comprises a raw material preprocessing stage, a physical fibrillation impregnating processing stage, an impregnating, steaming and bleaching three-section integrated pulping stage and a thickening and dewatering processing stage. An environmentally-friendly paper making and pulping system with high yield realizing the pulping technique comprises a stock cutter, a hammering and fibrillation screening dust remover, a washing dust remover, dewatering conveying equipment, a spiral steaming conveyor, a crashing, extruding and impregnating machine, a stirring and impregnating cabin, a pump pipe and a discharge pipe of a high-enriched steaming, bleaching and pulping all-in-one machine, wherein the pump pipe is connected to the high-enriched steaming bleaching pulping all-in-one machine; the discharge pipe of the high-enriched steaming, bleaching and pulping all-in-one machine is connected to a pulp cabin; the pump pipe of the pulp cabin is connected with a thickening and dewatering machine; the thickening and dewatering machine is output to the high-enriched pulping machine; the output of the high-enriched pulping machine is connected with a screening purifier and a thickening and squeezing machine in sequence. In the invention, the problems of high pollution, high energy consumption, serious shortage of paper making raw material and the like in present pulping and paper making industry can be solved fundamentally; rich plant fiber in the nature can be used, and the technical purposes of efficient bleaching, high yield, no black liquor and low energy consumption can be realized.

Description

technical field

[0001] The application of the present invention relates to a papermaking pulping process method and its process system, especially a papermaking pulping process method and system composition suitable for annual non-wood fiber grass and crop straw plant raw materials. Background technique

[0002] Plant raw materials for paper pulping applications include cellulose, hemicellulose, lignin, and pectin. Compared with woody plants, annual non-woody fiber grasses and crop straws have many fine fibers, high silicon content, large ash content, high pentose content, and many non-fibrous components such as miscellaneous cells. The color is dark, the lignin structure is complex and the content is high, and the content of lignin and its derivatives can reach 30-60%. It is considered as a component of no use value in the paper pulping industry. The lignin and its derivatives must be removed.

[0003] The existing paper pulping technology generally has technical problems...

Examples

Embodiment 1

[0041] Raw materials: rice, wheat straw

[0042] The raw materials are cut by the knife-roller grass cutter and enter the all-in-one machine for separating, screening and dedusting, and the screened waste residues are sent to the waste residue biomass gasification system, such as figure 1 As shown in the dotted frame structure, the shredded raw materials are sent to the multi-roller sand and gravel metal collector, and the pre-soaking agent is added. The pre-soaking agent includes 0.05% sodium dodecylbenzenesulfonate, penetrating agent fatty alcohol poly Oxyethylene ether JFC0.05%, sodium hydroxide 0.5%, DTPA0.5%, liquid ratio 1:20, through the action of multi-roller paddle and water flow, the raw materials are pre-washed, the washing and immersion temperature is 75 °C, and the acceleration Penetrate and swell the raw material fiber, remove the heavy foreign matter such as large sandstone or metal debris entrained in the raw material, fall into the slag collection tank at the ...

Embodiment 2

[0047] Raw material: reed

[0048] The raw materials are cut by the disc chipper and enter the multi-functional wire separation, screening and dust removal integrated machine. The screened waste slag is sent to the waste residue biomass gasification system, and the raw material that has been processed by the shredded wire is sent to the multi-roller sandstone metal collection. In the machine, add pre-soaking agent, pre-soaking agent includes sodium dodecylbenzene sulfonate 0.05%, penetrant fatty alcohol polyoxyethylene ether JFC0.05%, sodium hydroxide 0.5%, DTPA0.5%, liquid ratio 1 : 20, through the action of multi-roller paddles and water flow, the raw materials are pre-washed, the washing and impregnating temperature is 75°C, the infiltration is accelerated, the raw material fibers are swollen, and the large sandstone or metal debris entrained in the raw materials is equal to the specific gravity. The large foreign matter is removed and falls into the slag collecting tank at...

Embodiment 3

[0053] Raw material: wolfberry wood chips

[0054] The raw material enters the chip screen through the chipper, and the qualified wood chips are sent to the multi-roller sand and gravel metal collector through the belt conveyor, and the pre-soaking agent is added. The pre-soaking agent includes 0.05% sodium dodecylbenzene sulfonate, penetrant fat Alcohol polyoxyethylene ether JFC 0.05%, sodium hydroxide 0.5%, DTPA 0.5%, liquid ratio 1:20, washing and immersion temperature is 80 ℃, accelerate penetration, swell raw fiber, through multi-roller paddle and Under the action of water flow, the raw materials are pre-washed, and the large-scale foreign matter such as large sandstone or metal debris entrained in the raw materials is removed, and they fall into the slag collection tank at the bottom and are discharged outside the machine at regular intervals. In the oblique spiral dehydrator, the raw material is transported upwards from the bottom by gravity, and the free water containe...

technical field

[0001] The application of the present invention relates to a papermaking pulping process method and its process system, especially a papermaking pulping process method and system composition suitable for annual non-wood fiber grass and crop straw plant raw materials. Background technique

[0002] Plant raw materials for paper pulping applications include cellulose, hemicellulose, lignin, and pectin. Compared with woody plants, annual non-woody fiber grasses and crop straws have many fine fibers, high silicon content, large ash content, high pentose content, and many non-fibrous components such as miscellaneous cells. The color is dark, the lignin structure is complex and the content is high, and the content of lignin and its derivatives can reach 30-60%. It is considered as a component of no use value in the paper pulping industry. The lignin and its derivatives must be removed.

[0003] The existing paper pulping technology generally has technical problems...

Examples

Embodiment 1

[0041] Raw materials: rice, wheat straw

[0042] The raw materials are cut by the knife-roller grass cutter and enter the all-in-one machine for separating, screening and dedusting, and the screened waste residues are sent to the waste residue biomass gasification system, such as figure 1 As shown in the dotted frame structure, the shredded raw materials are sent to the multi-roller sand and gravel metal collector, and the pre-soaking agent is added. The pre-soaking agent includes 0.05% sodium dodecylbenzenesulfonate, penetrating agent fatty alcohol poly Oxyethylene ether JFC0.05%, sodium hydroxide 0.5%, DTPA0.5%, liquid ratio 1:20, through the action of multi-roller paddle and water flow, the raw materials are pre-washed, the washing and immersion temperature is 75 °C, and the acceleration Penetrate and swell the raw material fiber, remove the heavy foreign matter such as large sandstone or metal debris entrained in the raw material, fall into the slag collection tank at the ...

Embodiment 2

[0047] Raw material: reed

[0048] The raw materials are cut by the disc chipper and enter the multi-functional wire separation, screening and dust removal integrated machine. The screened waste slag is sent to the waste residue biomass gasification system, and the raw material that has been processed by the shredded wire is sent to the multi-roller sandstone metal collection. In the machine, add pre-soaking agent, pre-soaking agent includes sodium dodecylbenzene sulfonate 0.05%, penetrant fatty alcohol polyoxyethylene ether JFC0.05%, sodium hydroxide 0.5%, DTPA0.5%, liquid ratio 1 : 20, through the action of multi-roller paddles and water flow, the raw materials are pre-washed, the washing and impregnating temperature is 75°C, the infiltration is accelerated, the raw material fibers are swollen, and the large sandstone or metal debris entrained in the raw materials is equal to the specific gravity. The large foreign matter is removed and falls into the slag collecting tank at...

Embodiment 3

[0053] Raw material: wolfberry wood chips

[0054] The raw material enters the chip screen through the chipper, and the qualified wood chips are sent to the multi-roller sand and gravel metal collector through the belt conveyor, and the pre-soaking agent is added. The pre-soaking agent includes 0.05% sodium dodecylbenzene sulfonate, penetrant fat Alcohol polyoxyethylene ether JFC 0.05%, sodium hydroxide 0.5%, DTPA 0.5%, liquid ratio 1:20, washing and immersion temperature is 80 ℃, accelerate penetration, swell raw fiber, through multi-roller paddle and Under the action of water flow, the raw materials are pre-washed, and the large-scale foreign matter such as large sandstone or metal debris entrained in the raw materials is removed, and they fall into the slag collection tank at the bottom and are discharged outside the machine at regular intervals. In the oblique spiral dehydrator, the raw material is transported upwards from the bottom by gravity, and the free water containe...

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