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Multi-shelf furnace for use at low temperature

A furnace, central shaft technology, applied in the field of industrial thermal reactors, can solve problems such as excessive thermal inertia, consumption of fossil fuels, and inapplicability

Active Publication Date: 2018-11-09
COCKERILL MAINTENANCE & INGIE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Using a multi-hearth furnace (with burners, refractories, castings, etc.) of typical design in the prior art has excessive thermal inertia due to the amount of refractory, is too expensive and consumes fossil fuels, which makes it poorly sized and due to Not suitable for environmental factors, especially not suitable for low temperature heat treatment (<350°C)

Method used

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  • Multi-shelf furnace for use at low temperature
  • Multi-shelf furnace for use at low temperature
  • Multi-shelf furnace for use at low temperature

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Embodiment Construction

[0053] The present invention proposes a multi-hearth furnace called "MHF 100 / 0" (stands for 100% Metal, 0% Injected Fuel), which is particularly suitable for low-temperature heat treatment, in particular torrefaction and / or drying of waste or biomass, Mainly through:

[0054] - Replacement of components of stirring machinery by mechanically welded and non-cooled assemblies;

[0055] - replace inner refractory with standard outer insulation;

[0056] - replacing the hearth in the form of a "Chinese hat" with a flat metal hearth;

[0057] - Replacement of fossil fuel burners with thermal oil radiant tubes fixed under the hearth;

[0058] - Substitution of fossil fuels with vital energy sources, e.g. through simple flue gas / thermal oil exchangers.

[0059] Advantageously, most of the metal components used to make such furnaces are standard stainless steel components that are readily commercially available.

[0060] Figure 2A with 2B An overview of one example of such a fur...

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Abstract

The invention relates to a multi-shelf furnace (1) for heat treatment at a temperature not exceeding 350 DEG C, characterized in that the shelves (2) are made up of flat discs fixed to the outer shell(3), in that the stirring arms (5) are fixed to all-welded modules (14) constituting the central shaft (4), in that the stirring tines (15) are welded to their respective stirring arm (5), all theseelements being made from metal sheet or plate, and in that the heating device comprises a heat-transfer-fluid radiant heat exchanger (17, 27) which is secured to the face of each shelf (2) not in contact with the substance to be treated.

Description

technical field [0001] The invention relates to the technical field of industrial thermal reactors for low-temperature conversion of solid or liquid materials. The low temperature here refers to the temperature suitable for the biomass torrefaction method, usually lower than 300°C-350°C. [0002] More specifically, the present invention is aimed at those combustible biomass suppliers who wish to thicken and stabilize their products prior to shipment, combustible biomass users who wish to replace coal with green fuels, industrial sludges who wish to stabilize and thicken industrial sludge prior to shipment Sludge or purification station producers, or operations to improve their methods. Background technique [0003] In the field of energy, the concept of biomass (biomass, biomass) includes all organic matter that may become energy. This organic matter from plants is a stored form of solar energy absorbed by plants. It can be used directly (energy wood) or after methanation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B47/34C10L5/44C10L9/08F28D7/08F28D7/00
CPCC10B47/36C10L5/442C10L9/083F28D7/0041F28D7/087Y02E50/10Y02E50/30F28F5/04C10B47/34C10L9/08F28D7/08
Inventor 丹尼尔·加斯帕尔德约瑟夫·帕里洛罗加蒂尔·康特恩尼尔蒂埃里·梅尔基奥尔阿兰·麦姆蓬泰欧
Owner COCKERILL MAINTENANCE & INGIE
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