CN102942297A - Method for treating dried sludge by using tunnel kiln - Google Patents

Method for treating dried sludge by using tunnel kiln Download PDF

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Publication number
CN102942297A
CN102942297A CN2012104166045A CN201210416604A CN102942297A CN 102942297 A CN102942297 A CN 102942297A CN 2012104166045 A CN2012104166045 A CN 2012104166045A CN 201210416604 A CN201210416604 A CN 201210416604A CN 102942297 A CN102942297 A CN 102942297A
Authority
CN
China
Prior art keywords
kiln
brick
tunnel kiln
dried sludge
sludge
Prior art date
Application number
CN2012104166045A
Other languages
Chinese (zh)
Inventor
韩洪波
齐继红
齐利人
Original Assignee
东莞市金茂污泥处置有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞市金茂污泥处置有限公司 filed Critical 东莞市金茂污泥处置有限公司
Priority to CN2012104166045A priority Critical patent/CN102942297A/en
Publication of CN102942297A publication Critical patent/CN102942297A/en

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Abstract

The present invention relates to a method for treating dried sludge by using a tunnel kiln. The method comprises: adopting a brick manufacturing machine to manufacture dried sludge into a brick blank, stacking the brick blanks on a kiln trolley, pushing the kiln trolley to a tunnel kiln, and controlling a temperature in the tunnel kiln and a residence time, such that effects of drying, charring and burning can be respectively provided for the sludge brick blanks. The method has the following innovation characteristics that: continuous movement of the kiln trolley is adopted to form a moveable fixation bed in the tunnel kiln so as to complete a drying, charring and burning process of the dried sludge, and has advantages of less dust, high heat efficiency, large treatment capacity, and low cost.

Description

A kind of method of utilizing tunnel furnace that dewatered sludge is processed
Technical field
The invention belongs to the solid waste disposal technical field, be applicable to the needs of mud and refuse treatment.The mud concept of mentioning among the present invention contains the mud of sewage work's generation and the mud that generation is processed in the rubbish boiling.
Background technology
Mud has become dewatered sludge through the processing of the methods such as oven dry, airing, degree of depth filter-press dehydration.General dewatered sludge still contains a certain amount of moisture.
Dewatered sludge still needs to carry out ultimate disposal, and method has burning, soil utilization, produces vitrified brick, charing etc.Wherein burn the main method that adopts fluidized-bed, shortcoming is that the Dust Capacity that produces causes atmospheric pollution greatly, easily.Need to add the materials such as clay, shale and produce vitrified brick, otherwise the insufficient strength of burnt brick, have and adopt tunnel furnace to carry out sintering.The method of fixed bed is mainly adopted in charing, and through the processing of high temperature anaerobic gas, the volatile matter in the mud is discharged with gas, stayed inanimate matter and charing organic matter, formed the material of similar gac; This method is stopped up easily, is difficult to large-scale promotion application.
The method of utilizing tunnel furnace that dewatered sludge is processed does not also have report at present.
Summary of the invention
Purpose of the present invention is exactly to develop a kind of method for sludge treatment that can finish continuously oven dry, charing, burning.
Tunnel furnace is kiln a kind of of sintered ceramic and brick, is the Thermal Equipment of modern continuous Low fire ceramic, tile product, the likeness in form tunnel, and the kiln car that pottery, adobe body are housed is arranged on the kiln inner orbit, is promoted to pass through by kiln car pusher.
Method of the present invention is: use brick press that dewatered sludge is made adobe, then pile up on kiln car, push in the tunnel furnace; By temperature and the residence time of control in the tunnel furnace, just can make that the sludge brick base obtains respectively to dry, the effect of charing, burning.
Innovative point of the present invention is: utilize the movement continuously of kiln car, form oven dry, charing, burning process that a kind of " mobile fixed bed " finishes dewatered sludge in tunnel furnace.Has the advantage that dust is few, thermo-efficiency is high, treatment capacity is large, cost is low.
Embodiment
In one embodiment of the invention, the flow process of the inventive method is: utilize brick press that dewatered sludge is made adobe, then pile up at kiln car and form buttress, push in the tunnel furnace, the direction of motion of kiln car is opposite with the flow direction of airstream in kiln, in kiln car the exit end fresh air that enters and the high temperature fragment of brick heat exchange of burning till, entering the kiln middle part takes fire, the high-temperature flue gas that produces flows to the kiln car entrance end, with the adobe heat exchange of newly advancing, and the treated rear discharging up to standard of the flue gas after the cooling.

Claims (1)

1. a method of utilizing tunnel furnace that dewatered sludge is processed is characterized in that: use brick press that dewatered sludge is made adobe, then pile up on kiln car, push in the tunnel furnace; By temperature and the residence time of control in the tunnel furnace, just can make that the sludge brick base obtains respectively to dry, the effect of charing, burning.
CN2012104166045A 2012-10-28 2012-10-28 Method for treating dried sludge by using tunnel kiln CN102942297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104166045A CN102942297A (en) 2012-10-28 2012-10-28 Method for treating dried sludge by using tunnel kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104166045A CN102942297A (en) 2012-10-28 2012-10-28 Method for treating dried sludge by using tunnel kiln

Publications (1)

Publication Number Publication Date
CN102942297A true CN102942297A (en) 2013-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012104166045A CN102942297A (en) 2012-10-28 2012-10-28 Method for treating dried sludge by using tunnel kiln

Country Status (1)

Country Link
CN (1) CN102942297A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1762882A (en) * 2005-08-26 2006-04-26 河北理工大学 Method for producing ecological architectural material using sludge and gangue
CN101570429A (en) * 2008-04-30 2009-11-04 王明根 Processing method for preparing bricks by utilizing urban domestic sludge
CN102381877A (en) * 2011-05-16 2012-03-21 南京鑫翔新型建筑材料有限责任公司 Method for brickmaking by comprehensive utilization of desiccated sludge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1762882A (en) * 2005-08-26 2006-04-26 河北理工大学 Method for producing ecological architectural material using sludge and gangue
CN101570429A (en) * 2008-04-30 2009-11-04 王明根 Processing method for preparing bricks by utilizing urban domestic sludge
CN102381877A (en) * 2011-05-16 2012-03-21 南京鑫翔新型建筑材料有限责任公司 Method for brickmaking by comprehensive utilization of desiccated sludge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
何劲波,水清: "《砖瓦烧制技术》", 31 August 1998, 金盾出版社 *

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Application publication date: 20130227