Energy supply system of papermaking production line

A production line and energy supply technology, applied in the papermaking industry, can solve the problems of poor system operation efficiency, poor economy, and large heat loss, and achieve the effect of improving heat flux density, accelerating heat exchange rate, and ensuring heat exchange effect.

Pending Publication Date: 2018-11-23
山东鑫蓝新能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the phase change of the heat exchange medium involved, the equipment structure is relatively complex and the number of components is large
In addition, the temperature of the reused condensed water is close to 90°C, and it is directly discharged to the water treatment system, so the heat loss is relatively large
The sludge is press-filtered to 80% moisture content and then sent to coal-fired power plants for co-firing for power generation. The freight is paid by oneself, and the economy is poor
The biogas generation system has no constant temperature measures,

Method used

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  • Energy supply system of papermaking production line
  • Energy supply system of papermaking production line
  • Energy supply system of papermaking production line

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0031] Such as figure 2 Shown, the energy supply system of papermaking production line of the present invention, papermaking production line comprises several pulp drying cylinders 1 and is arranged on the methane tank 2 of pulp drying cylinder 1 downstream, sludge drying device 3, sewage distillation device 4 and flue gas / Water heat exchanger 5, energy supply system includes several gas turbine generator sets 6, flue gas / air mixer 7, waste heat boiler 8, steam turbine generator set 9; each gas turbine generator set 6 burns natural gas and / or biogas tank 2 The generated biogas is used for electricity and high-temperature flue gas, which is used for the paper production line; at least one gas turbine generating set 6 generates part of the high-temperature flue gas that is passed into the flue gas / air mixer...

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Abstract

The invention discloses an energy supply system of a papermaking production line. Electric power and high-temperature flue gas are generated by combusting natural gas, wherein the electric power is used for the papermaking production line, and the high-temperature flue gas serves as a drying medium of the papermaking production line; secondary power generation is carried out, low-temperature fluegas obtained after drying is recycled, the utilization efficiency of the natural gas is greatly improved, and energy conservation and environmental protection are achieved. The energy supply system forms an energy closed-loop use in the papermaking industry, zero-pollution emission of the papermaking production line is realized, the comprehensive heat efficiency can reach 90% or above, and the energy-saving and emission-reducing effects are remarkable.

Description

technical field [0001] The invention belongs to the field of papermaking industry, and in particular relates to an energy supply system for a papermaking production line. Background technique [0002] The paper industry is a polluting manufacturing industry, and there will be sewage discharge during the production process, which will have a negative impact on the environment. At the same time, its production equipment and energy supply system have been using the traditional method, which has high energy consumption and high cost, which is not conducive to improving the competitiveness of enterprises. With the development of natural gas distributed energy technology and equipment, customized transformation of enterprise production lines can save energy costs. [0003] Traditional energy supply solutions in the paper industry such as figure 1 Shown: Relying on the municipal power grid for power supply will face problems such as power cuts, relatively high electricity prices,...

Claims

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Application Information

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IPC IPC(8): D21F5/02
CPCD21F5/028
Inventor 陈巍
Owner 山东鑫蓝新能源科技有限公司
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