CN103278017A - Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing - Google Patents

Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing Download PDF

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Publication number
CN103278017A
CN103278017A CN2013102006224A CN201310200622A CN103278017A CN 103278017 A CN103278017 A CN 103278017A CN 2013102006224 A CN2013102006224 A CN 2013102006224A CN 201310200622 A CN201310200622 A CN 201310200622A CN 103278017 A CN103278017 A CN 103278017A
Authority
CN
China
Prior art keywords
chimney
blower
drying segment
diffusing chimney
warm
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2013102006224A
Other languages
Chinese (zh)
Inventor
邢守正
于宏超
谢朝明
袁媛
闫为群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MCC North Dalian Engineering Technology Co Ltd
Original Assignee
MCC North Dalian Engineering Technology Co Ltd
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 MCC North Dalian Engineering Technology Co Ltd filed Critical MCC North Dalian Engineering Technology Co Ltd
Priority to CN2013102006224A priority Critical patent/CN103278017A/en
Publication of CN103278017A publication Critical patent/CN103278017A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the technical field of grate kiln devices, and particularly relates to a device preventing a diffusing chimney of a blower-driven drying segment of a grate kiln from condensing. The device comprises a down-draft drying segment warm-air pipe and the diffusing chimney of the blower-driven drying segment, and is characterized in that a warm-air connection pipe is connected between the down-draft drying segment warm-air pipe and the diffusing chimney of the blower-driven drying segment, an electric butterfly valve is arranged on the warm-air connection pipe, a thermal couple is arranged on the diffusing chimney of the blower-driven drying segment, and the thermal couple and the electric butterfly valve are respectively connected with a warm-air temperature automatic regulating device. The device preventing the diffusing chimney of the blower-driven drying segment of the grate kiln from condensing is simple in structure and convenient to construct, an existing down-draft drying segment is effectively utilized, warm air in the down-draft drying segment is led to the diffusing chimney of the blower-driven drying segment, and temperature of warm air in the diffusing chimney is automatically controlled through the thermal couple and the electric butterfly valve, energy is saved, and moreover the diffusing chimney of the blower-driven drying segment of the grate kiln is prevented from condensing.

Description

Prevent that the drying grate blasting drying period from diffusing the chimney condensation device
Technical field
The invention belongs to the drying grate equipment technical field, especially relate to a kind of drying grate blasting drying period that prevents and diffuse the chimney condensation device.
Background technology
Along with the fast development that China's " chain-kiln " pelletizing process is produced acid pellet, this technology progressively is subjected to the approval of industry.The normal operational relation of drying grate is to the operating rate of whole production line.According to the thermal regulation of drying grate, generally can be divided into four sections.Preheating II section, preheating I section, down-draft drying zone, blasting drying period.Wherein, the hot blast of blasting drying period is from three cold sections of central coolers, and temperature is about about 270 ℃, but produces thermal loss through carrying at the pipeline of long distance, and hot blast temperature is down to 150 ℃-180 ℃ (if bloodstone, temperature may be lower).After hot blast was through the heat exchange of wet feed layer, temperature can be down to below 100 ℃, and contains part moisture content in the hot blast.Winter is when producing, and it is lower that blasting drying period diffuses the chimney ambient temperature, when the low temperature hot blast that also has moisture content during by chimney, very easily causes the inner wall of stack dewfall, and the corrosion chimney body can cause adverse influence to pelletizing production.
Summary of the invention
The objective of the invention is a kind of simple in structurely, the drying grate blasting drying period that prevents that is easy to construct diffuses the chimney condensation device.
The objective of the invention is to realize by following technical proposals:
The drying grate blasting drying period that prevents of the present invention diffuses the chimney condensation device, comprise the down-draft drying zone hot air duct, blasting drying period diffuses chimney, it is characterized in that diffusing at described down-draft drying zone hot air duct and blasting drying period and be connected with the hot blast tube connector between the chimney, this hot blast tube connector is provided with electric butterfly valve, described blasting drying period diffuses chimney and is provided with thermocouple, and described thermocouple is connected with the hot blast temperature self-checking device respectively with electric butterfly valve.
Described hot blast tube connector is the seamless link pipe.
Advantage of the present invention:
It is of the present invention that to prevent that the drying grate blasting drying period from diffusing the chimney condensation device simple in structure, easy construction, effectively utilize existing down-draft drying zone, the hot blast of down-draft drying zone is caused diffusing in the chimney of blasting drying period, and by thermocouple and electric butterfly valve automatically control diffuse hot blast temperature in the chimney, not only save the energy, but also avoid the drying grate blasting drying period to diffuse the chimney dewfall.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of drying grate blasting drying period that prevents of the present invention diffuses the chimney condensation device, comprise down-draft drying zone hot air duct 1, blasting drying period diffuses chimney 6, it is characterized in that diffusing at described down-draft drying zone hot air duct 1 and blasting drying period and be connected with hot blast tube connector 4 between the chimney 6, this hot blast tube connector 4 is provided with electric butterfly valve 5, described blasting drying period diffuses chimney 6 and is provided with thermocouple 2, and described thermocouple 2 is connected with hot blast temperature self-checking device 3 respectively with electric butterfly valve 5.Described hot blast tube connector 4 is the seamless link pipe.
Of the present inventionly prevent that the drying grate blasting drying period from diffusing the chimney condensation device and diffusing thermocouple 2 on the chimney 6 by being installed in blasting drying period, the open degree of hot blast temperature self-checking device 3 automations control electric butterfly valve 5, the hot blast importing blasting drying period of down-draft drying zone is diffused in the chimney 6, blasting drying period is diffused chimney 6 interior heatrejections to control to more than 100 ℃, not only save the energy, but also avoid the drying grate blasting drying period to diffuse the chimney dewfall.

Claims (2)

1. one kind prevents that the drying grate blasting drying period from diffusing the chimney condensation device, comprise the down-draft drying zone hot air duct, blasting drying period diffuses chimney, it is characterized in that diffusing at described down-draft drying zone hot air duct and blasting drying period and be connected with the hot blast tube connector between the chimney, this hot blast tube connector is provided with electric butterfly valve, described blasting drying period diffuses chimney and is provided with thermocouple, and described thermocouple is connected with the hot blast temperature self-checking device respectively with electric butterfly valve.
2. the drying grate blasting drying period that prevents according to claim 1 diffuses the chimney condensation device, it is characterized in that described hot blast tube connector is the seamless link pipe.
CN2013102006224A 2013-05-27 2013-05-27 Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing Pending CN103278017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013102006224A CN103278017A (en) 2013-05-27 2013-05-27 Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013102006224A CN103278017A (en) 2013-05-27 2013-05-27 Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing

Publications (1)

Publication Number Publication Date
CN103278017A true CN103278017A (en) 2013-09-04

Family

ID=49060607

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013102006224A Pending CN103278017A (en) 2013-05-27 2013-05-27 Device preventing diffusing chimney of blower-driven drying segment of grate kiln from condensing

Country Status (1)

Country Link
CN (1) CN103278017A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076476A (en) * 1997-04-15 2000-06-20 Sumitomo Heavy Industries, Ltd. Method of and apparatus for preventing emission of dioxins in incineration facility
CN100528277C (en) * 2005-11-23 2009-08-19 孙克勤 Apparatus for preventing flue-gas from being washed down for wet chimney of flue-gas desulphurization equipment
CN101701717A (en) * 2009-09-17 2010-05-05 西安热工研究院有限公司 Heating process of low-temperature flue gas with wetting flue gas desulphurization
CN101914677B (en) * 2010-09-06 2012-06-20 中冶北方工程技术有限公司 Drying and dust-removing apparatus for forced air drying section of chain grate and drying and dust-removing technology
CN202284907U (en) * 2011-10-28 2012-06-27 中冶北方工程技术有限公司 Three-way chimney at forced air drying section of chain grate machine
JP2012251679A (en) * 2011-06-01 2012-12-20 Metawater Co Ltd Steam use system in sludge incineration plant
CN203323580U (en) * 2013-05-27 2013-12-04 中冶北方(大连)工程技术有限公司 Device preventing blast drying section emission chimney of chain grate from dewing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076476A (en) * 1997-04-15 2000-06-20 Sumitomo Heavy Industries, Ltd. Method of and apparatus for preventing emission of dioxins in incineration facility
CN100528277C (en) * 2005-11-23 2009-08-19 孙克勤 Apparatus for preventing flue-gas from being washed down for wet chimney of flue-gas desulphurization equipment
CN101701717A (en) * 2009-09-17 2010-05-05 西安热工研究院有限公司 Heating process of low-temperature flue gas with wetting flue gas desulphurization
CN101914677B (en) * 2010-09-06 2012-06-20 中冶北方工程技术有限公司 Drying and dust-removing apparatus for forced air drying section of chain grate and drying and dust-removing technology
JP2012251679A (en) * 2011-06-01 2012-12-20 Metawater Co Ltd Steam use system in sludge incineration plant
CN202284907U (en) * 2011-10-28 2012-06-27 中冶北方工程技术有限公司 Three-way chimney at forced air drying section of chain grate machine
CN203323580U (en) * 2013-05-27 2013-12-04 中冶北方(大连)工程技术有限公司 Device preventing blast drying section emission chimney of chain grate from dewing

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Application publication date: 20130904

C05 Deemed withdrawal (patent law before 1993)