Multi-point feeding system for co-processing rdf in cement kiln

A technology of co-processing and feeding system, which is applied in the direction of combustion type, combustion method, lighting and heating equipment, etc., and can solve problems such as the limitation of disposal amount and the influence of stable operation of kiln system

Active Publication Date: 2020-05-05
华新环境工程有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the co-processing of RDF in cement kilns generally adopts a single point of feeding into the kiln, which has a certain impact on the stable operation of the kiln system, and there is a certain limit on the amount of disposal.

Method used

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  • Multi-point feeding system for co-processing rdf in cement kiln

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, a multi-point feeding system for co-processing RDF in a cement kiln includes at least two stages of shaftless screw conveyor 2, the first stage of shaftless screw conveyor 2 has only one and the inlet is connected to the main pipeline, and the main pipeline is equipped with At least one rotary air lock valve 1, each shaftless screw conveyor 2 of the upper stage is connected to the entrance of at least two shaftless screw conveyors 2 of the next stage through a branch pipeline, and each shaftless screw conveyor of the last stage 2 are divided into at least two paths through branch pipelines, each of which is equipped with a gate valve 4 and is connected to the kiln system 5, and the branch pipeline inlet is connected to the shaftless screw conveyor Connection of screw conveyor 2. In this embodiment, two-stage shaftless...

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Abstract

The invention relates to a multi-point feeding system for coordinated disposal of refuse derived fuel (RDF) by a cement kiln. The multi-point feeding system comprises two or more stages of shaftless screw conveyors; an inlet of only one shaftless screw conveyor of the first stage communicates with a main pipeline, and one or more rotary wind locking valves are arranged on the main pipeline; each shaftless screw conveyor of the previous stage communicates with inlets of two or more corresponding shaftless screw conveyors of the next stage through branch pipelines; each shaftless screw conveyorof the last stage is divided into two or more ways through branch pipelines, and each way is provided with a gate plate valve and communicates with a kiln system; and inlets of the branch pipelines communicate with the shaftless screw conveyors through shell lateral openings connected into the shaftless screw conveyors. According to the multi-point feeding system, an RDF distributing function is achieved, multi-point adjusting feeding is achieved, stable operation of the kiln system is guaranteed, the disposal amount of the RDF is increased, and feeding wind locking is achieved.

Description

technical field [0001] The invention belongs to the field of cement kiln co-processing RDF, in particular to a multi-point feeding system for cement kiln co-processing RDF. Background technique [0002] RDF is the abbreviation of Refuse Derived Fuel. It has the characteristics of high calorific value, stable combustion, easy transportation, easy storage, low secondary pollution and low emission of dioxins. It is widely used in drying projects, cement Manufacturing, heating engineering and power generation engineering and other fields. At present, the co-processing of RDF in cement kilns generally adopts a single point of feeding into the kiln, which has a certain impact on the stable operation of the kiln system, and there is a certain limit on the amount of disposal. Contents of the invention [0003] The purpose of the present invention is to provide a multi-point feeding system for co-processing RDF in a cement kiln. Disposal capacity, to achieve feeding lock air. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/44
Inventor 李叶青王加军魏茂
Owner 华新环境工程有限公司
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