Pyrolysis garbage technology performed by means of double-cylinder rotary kiln

A rotary kiln and pyrolysis technology, applied in the field of environmental engineering, can solve the problems of wasting recyclable resources, entering and occupying land resources, etc.

Active Publication Date: 2012-10-03
JIANGSU PENGFEI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Landfill not only encroached on valuable land resources, wasted valuable recyclable resources in garbage, but also caused potential impact and harm to the environment
Composting technology, many harmful substances will enter the soil with composting products, causing secondary pollution
Incineration technology is a

Method used

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  • Pyrolysis garbage technology performed by means of double-cylinder rotary kiln
  • Pyrolysis garbage technology performed by means of double-cylinder rotary kiln
  • Pyrolysis garbage technology performed by means of double-cylinder rotary kiln

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Embodiment Construction

[0029] Double cylinder rotary kiln pyrolysis waste process, the process includes:

[0030] Double-barrel rotary pyrolysis kiln 1, which includes: pyrolysis channel 38, ash slag return heat channel 35, feeding device 24, kiln head cover 27, which includes exhaust gas interface 26, garbage slag outlet 21, kiln tail cover 46, It includes a composite gas outlet pipe 48, a hot air inlet port 47, a supplementary heat combustion channel 50, and a supplementary heat burner 49, which are installed in the supplementary heat combustion channel;

[0031] Cement production line 54, including: cement rotary kiln 10, clinker cooler 9, precalciner 13, preheater 19; the cement rotary kiln includes: kiln head 11, kiln tail 14, multi-channel burner 8 , which is installed at the head of the kiln; the clinker cooler contains: a hot air outlet 51, a hot clinker inlet 52, which is connected to the head of the cement rotary kiln; the precalciner contains an upper Exhaust port 20, a lower air inlet 1...

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Abstract

The invention belongs to the technical field of environmental engineering, and provides a pyrolysis garbage technology performed by means of a double-cylinder rotary kiln. The pyrolysis garbage technology performed by means of the double-cylinder rotary kiln includes the double-cylinder rotary kiln, a cement production line and technology connection pipelines, wherein the double-cylinder rotary kiln includes a pyrolysis passage, an ash heat return passage, a kiln head cover and a kiln tail cover; the cement production line includes a cement rotary kiln, a clinker cooling machine and a predecomposition furnace; and the technology connection pipelines include a tertiary air pipeline for communicating the clinker cooling machine with the kiln tail cover, a composite gas pipeline for communicating the cement rotary kiln with the kiln tail cover, a composite gas shunting pipeline for communicating the ash heat return passage with a composite gas eduction pipe of the kiln tail cover, a waste gas waste heat pipeline for communicating a side hot air inlet of the predecomposition furnace with a waste gas exhaust connector of the kiln head cover, and a garbage slag pipeline for communicating a side feed opening of the predecomposition furnace with a garbage slag outlet of the kiln head cover. The technology is utilized for processing domestic garbage with the cement rotary kiln for cooperation, utilizes the high-temperature pyrolysis garbage cooled by cement clinker to effectively avoid the dioxin generation conditions during the garbage incineration, and effectively utilizes the heat value of garbage, and further completely utilizes the garbage ash in a recycling manner.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering and is applied to the cooperative disposal of domestic garbage by cement rotary kilns. It is especially suitable for the process of disposing pyrolysis waste beside the existing cement rotary kiln production line; it is also suitable for implementing the technological transformation of the process in the existing waste incineration field. Background technique [0002] The waste treatment of the current technology mainly includes landfill, composting and incineration, which are three relatively common treatment methods. Landfill not only encroached on valuable land resources, wasted valuable recyclable resources in garbage, but also caused potential impact and harm to the environment. With composting technology, many harmful substances will enter the soil with composting products, causing secondary pollution. Incineration technology is a waste treatment method commonly used in d...

Claims

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Application Information

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IPC IPC(8): F27B7/20F27B7/32F27B7/34F27B7/36F27D17/00C10B53/00
CPCY02P10/25Y02P20/129
Inventor 倪文龙贲道春查文炜
Owner JIANGSU PENGFEI GROUP
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