Pulp waste steam heat energy recycling and comprehensive utilization treatment method and device

A heat recovery and treatment method technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of polluting the environment and wasting a lot of energy, and achieve fast energy saving, high-efficiency heat recovery, and rapid vapor-liquid mass transfer hot effect

Pending Publication Date: 2020-09-29
阿拉尔市中泰纺织科技有限公司 +1
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Problems solved by technology

[0002] Because the steaming ball is used as the cooking equipment for pulp production, the advantages are that the raw material and the liquid are mixed evenly, the quality of the pulp is relatively uniform, the liquid ratio is small, the concentration of the liquid is high, the cooking time can be shortened, and the equipment structure is simple and the volume is small. It is easy to install and maintain, etc., but due to the characteristics of large heat ...

Method used

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  • Pulp waste steam heat energy recycling and comprehensive utilization treatment method and device

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Embodiment 1

[0055] In this embodiment, the comprehensive utilization treatment device for pulp waste steam heat energy recovery, such as figure 1 As shown, it includes a pre-treatment system, an absorption energy storage unit, a black liquor evaporation system, a deodorization unit, and a condensation treatment unit. Specifically, the pre-treatment system includes large and small steam release treatment units arranged side by side with steam balls, wherein the steam The ball waste steam large release steam treatment unit includes a large steam release main pipe 11, a first cyclone separator 12, a first waste gas buffer tank 13, a pulp pump 14 and a pulp discharge pipe 15 arranged in series in sequence; The small steam release processing unit includes a small steam release main pipe 21, a second cyclone separator 22, a second waste gas buffer tank 23, a black liquor pump 24, and a black liquor discharge pipe 25 arranged in series in sequence; the absorption energy storage unit includes The...

Embodiment 2

[0065] This embodiment is basically the same as Embodiment 1, but the black liquor evaporation system in step 2) comprehensive utilization of heat energy adopts a six-effect evaporation system. In this way, the production capacity of steamed pulp is increased by 3%, and the heat energy of waste steam is recovered by 90%.

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Abstract

The invention discloses a pulp waste steam heat energy recycling and comprehensive utilization treatment method and device. The method comprises the steps that (1), the heat energy in pulp waste steamis absorbed and stored through an absorption and energy storage unit, and the recycling of the heat energy of the waste steam is achieved; (2), hot water generated after the absorption and energy storage unit absorbs the heat energy is inputted into a black liquor evaporation system provided with an evaporation unit and a steam balance unit, steam of each grade for hot water flash evaporation isstably conveyed and distributed to the black liquor evaporation system through the steam balance unit, and the cooled hot water is returned to the absorption and energy storage unit; and (3), the waste gas generated by the absorption and energy storage unit and the black liquor evaporation system is condensed in a condenser, the condensed waste gas is conveyed to a deodorization unit through a vacuum pump, and the deodorized waste gas is discharged into the atmosphere. According to the pulp waste steam heat energy recycling and comprehensive utilization treatment method and device, comprehensive utilization of waste steam heat energy in the pulp industry can be achieved, meanwhile, waste gas is discharged up to the standard, environmental friendliness is achieved, and the production cost of enterprises can be effectively saved.

Description

technical field [0001] The invention belongs to the technical field of pulp production, and in particular relates to a treatment method and device for comprehensive utilization of pulp waste steam heat energy recovery and utilization. Background technique [0002] Because the steaming ball is used as the cooking equipment for pulp production, the advantages are that the raw material and the liquid are mixed evenly, the quality of the pulp is relatively uniform, the liquid ratio is small, the concentration of the liquid is high, the cooking time can be shortened, and the equipment structure is simple and the volume is small. It is easy to install and maintain, etc., but due to the characteristics of large heat energy, fast discharge speed, frequent discharge and rich entrainment due to the large and small steam release of the steaming ball, a large amount of cooking waste steam will be generated. It contains small fibers, methyl mercaptan, hydrogen sulfide and other impuritie...

Claims

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Application Information

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IPC IPC(8): F28D21/00F28B1/00B01D1/00B01D1/30B01D53/00B01D53/48B01D53/52
CPCB01D1/00B01D1/30B01D53/002B01D53/485B01D53/52B01D2257/306F28B1/00F28D21/0014Y02P70/10Y02P80/15
Inventor 王彦波罗书磊谭瀚茗何凡吴宏辉郝誉凯方勇冉静平余永红侯小军
Owner 阿拉尔市中泰纺织科技有限公司
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