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Closed negative pressure solid waste oxygen control pyrolysis device

A solid waste, closed technology, applied in the field of energy saving and environmental protection, can solve problems such as low operating costs, and achieve the effects of reducing purification costs, meeting efficiency, and reducing the proportion of pyrolysis

Pending Publication Date: 2021-05-28
FOSHAN HUAJIEYUAN THERMAL ENERGY & ENVIRONMENTAL ENG TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is to design a solid waste pyrolysis device with low investment, high treatment efficiency, low operating cost and less secondary pollution, which can co-process relevant harmful gases during the solid waste treatment process, greatly reducing Reduce the cost of exhaust gas purification, reduce environmental pollution, simplify the process, save energy consumption, improve safety and improve the working environment

Method used

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  • Closed negative pressure solid waste oxygen control pyrolysis device
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  • Closed negative pressure solid waste oxygen control pyrolysis device

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: as Figure 1 to Figure 4As shown, a closed negative pressure solid waste oxygen control pyrolysis device includes a dryer 1, a pyrolysis burner 2, a low calorific value gas burner 3, a flue gas heat exchanger 4, a condensation dehumidifier 5, and a hot air circulation Fan 6, pyrolysis gas exhaust fan 7 and main fan 8, described dryer 1 is provided with material inlet 13, material outlet 14, hot air inlet 11 and moisture outlet 12, and described pyrolysis burner 2 is provided with There is a material inlet 23, a slag outlet 24 and a pyrolysis gas outlet 22, the low calorific value gas burner 3 is provided with an air inlet 31 and a flue gas outlet 34, and the flue gas heat exchanger 4 is provided with a flue gas inlet 43. Tail gas outlet 44, hot air outlet 42, and circulation return air outlet 41, flue gas inlet 43, and tail gas outlet 44 are respectively connected to the inlet and outlet of the first heat exchange channel of the flue gas heat exchanger, ho...

Embodiment 2

[0059] Embodiment 2: (as figure 1 , figure 2 , Figure 4 , Figure 5 ) A closed negative pressure oxygen-controlled pyrolysis device for solid waste, including a dryer 1, a pyrolysis burner 2, a low calorific value gas burner 3, a flue gas heat exchanger 4, a condensation dehumidifier 5, and a hot air circulation fan 6 , pyrolysis gas exhaust fan 7 and main blower 8, described dryer 1 is provided with material inlet 13, material outlet 14, hot air inlet 11 and moisture outlet 12, and described pyrolysis burner 2 is provided with material Inlet 23, slag outlet 24 and pyrolysis gas outlet 22, described low calorific value gas burner 3 is provided with air inlet 31 and flue gas outlet 34, described flue gas heat exchanger 4 is provided with flue gas inlet 43, Exhaust gas outlet 44, hot air outlet 42, and circulating air return port 41; flue gas inlet 43, exhaust gas outlet 44 are respectively connected to the inlet and outlet of the first heat exchange pipe of the flue gas he...

Embodiment 3

[0071] Embodiment 3: (as figure 2 , image 3 , Figure 4 , Figure 6 ) A closed negative pressure oxygen-controlled pyrolysis device for solid waste, including a dryer 1, a pyrolysis burner 2, a low calorific value gas burner 3, a flue gas heat exchanger 4, a condensation dehumidifier 5, and a hot air circulation fan 6 , pyrolysis gas exhaust fan 7 and main blower 8, described dryer 1 is provided with material inlet 13, material outlet 14, hot air inlet 11 and moisture outlet 12, and described pyrolysis burner 2 is provided with material Inlet 23, slag outlet 24 and pyrolysis gas outlet 22, described low calorific value gas burner 3 is provided with air inlet 31 and flue gas outlet 34, described flue gas heat exchanger 4 is provided with flue gas inlet 43, Exhaust gas outlet 44, hot air outlet 42 and circulating air return port 41; flue gas inlet 43 and exhaust gas outlet 44 respectively correspond to the inlet and outlet of the first heat exchange channel connected to the...

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Abstract

The invention discloses a closed negative pressure solid waste oxygen control pyrolysis device. The device comprises a dryer, a pyrolysis combustor, a low-heating-value gas combustor, a flue gas heat exchanger, a condensation dehumidifier, a hot air circulating fan, a pyrolysis gas exhaust fan and a main fan. A pyrolysis gas outlet of the pyrolysis combustor is connected with an air inlet of the low-heating-value gas combustor through the pyrolysis gas exhaust fan, a pyrolysis gas conveying pipe and the main fan, and a pyrolysis gas conveying pipe at the air inlet end of the main fan is communicated with a hot air circulating pipe through a bypass pipeline; a flue gas outlet of the low-heating-value gas combustor is connected with a flue gas inlet of the flue gas heat exchanger; and a material hoister is arranged in a material conveying sealing area. The device can meet the requirements of efficiency, environmental protection and economy. The solid waste reduction efficiency can be improved by improving the combustion ratio. The working environment is greatly improved, flue gas waste heat is recycled through the flue gas heat exchanger and used for front-section drying of solid waste, and the heat value is fully utilized.

Description

technical field [0001] The invention relates to a solid waste pyrolysis device, in particular to an oxygen-controlled pyrolysis device applied to solid waste reduction and harmless treatment and coordinated with harmful gas treatment, belonging to the technical field of energy saving and environmental protection. Background technique [0002] The disposal of solid waste such as garbage and sludge has become a thorny issue for the current government. The landfill disposal method commonly used in the past only transfers pollutants and does not fundamentally solve the problem. Waste landfill will cause soil, groundwater and surrounding air pollution. Pollution, and the existing large-scale waste incineration plants can no longer meet the current growing demand for huge waste disposal. In addition, due to urban development, urban construction in many places has extended to landfill areas many years ago. If the previously buried garbage is not cleaned up, the harmful gases emitte...

Claims

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Application Information

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IPC IPC(8): F23G5/027F23G5/14F23G5/44F23G5/50
CPCF23G5/027F23G5/14F23G5/444F23G5/44F23G5/50
Inventor 林建东徐健元陈永基
Owner FOSHAN HUAJIEYUAN THERMAL ENERGY & ENVIRONMENTAL ENG TECH CO
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