CN105921250A - Spontaneous combustion prevention structure of coal mill - Google Patents

Spontaneous combustion prevention structure of coal mill Download PDF

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Publication number
CN105921250A
CN105921250A CN201610263988.XA CN201610263988A CN105921250A CN 105921250 A CN105921250 A CN 105921250A CN 201610263988 A CN201610263988 A CN 201610263988A CN 105921250 A CN105921250 A CN 105921250A
Authority
CN
China
Prior art keywords
coal mill
coal
discharge nozzle
spontaneous combustion
grinds
Prior art date
Application number
CN201610263988.XA
Other languages
Chinese (zh)
Inventor
韦国思
Original Assignee
韦国思
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 韦国思 filed Critical 韦国思
Priority to CN201610263988.XA priority Critical patent/CN105921250A/en
Publication of CN105921250A publication Critical patent/CN105921250A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/04Safety devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00Control arrangements specially adapted for crushing or disintegrating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus

Abstract

The invention discloses a spontaneous combustion prevention structure of a coal mill. The structure comprises a coal mill body, a coal mill feeding pipe, a coal mill discharge pipe and a temperature measuring thermal resistor, wherein the coal mill feeding pipe and the coal mill discharge pipe are respectively arranged at two ends of the coal mill body and extend in an upward bending way, and the temperature measuring thermal resistor is arranged at one side, close to the coal mill, of the coal mill discharge pipe. The structure can effectively prevent and control accidents caused by overhigh temperature at the outlet of the coal mill, thus ensuring normal production and avoiding accidents caused by abrasion of detection equipment.

Description

Coal grinds anti-spontaneous combustion structure
Technical field
The present invention relates to coal dust and produce equipment manufacturing technology field, the especially anti-spontaneous combustion structure of coal mill.
Background technology
During whole pulverized coal preparation, the temperature of coal disintegrating outlet coal dust, if it exceeds certain safety value will cause spontaneous combustion then to cause blast, has a strong impact on the most properly functioning of production, and does not have effective detection and prevention and control facility at present.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose coal and grind anti-spontaneous combustion structure, the accident caused owing to temperature is too high at effective prevention and control coal disintegrating outlet, it is ensured that production properly functioning, avoid the accident caused by detection equipment attrition simultaneously.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme:
Coal grinds anti-spontaneous combustion structure, including coal mill body, coal mill feed pipe, coal mill discharge nozzle and thermometric thermal resistance,
Described coal mill feed pipe and coal mill discharge nozzle are separately positioned on described coal mill body two ends and are folded upward at extending,
Described thermometric thermal resistance is arranged on described coal mill discharge nozzle, and described thermometric thermal resistance is arranged on described coal mill discharge nozzle and grinds side near coal.
Further, central controller, temperature sensor, cooling system and water tank,
Cooling system is wrapped in outside coal mill discharge nozzle, and is connected with water tank with feed tube by drain pipe, is provided with valve on drain pipe and feed tube,
Temperature sensor is arranged on thermometric thermal resistance, described valve and described temperature sensor and described central controller communication.
Further, also include that inlet valve, described inlet valve are arranged on described coal mill feed pipe, described inlet valve and described central controller communication.
Coal of the present invention grinds anti-spontaneous combustion structure, the accident caused at effective prevention and control coal disintegrating outlet owing to temperature is too high, it is ensured that production properly functioning, avoids the accident caused by detection equipment attrition simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that coal of the present invention grinds anti-spontaneous combustion structure, and wherein, coal mill discharge nozzle inner circular represents pulverized coal particle.
Detailed description of the invention
Describing the present invention below in conjunction with the accompanying drawings, the description of this part is only exemplary and explanatory, should not have any restriction effect to protection scope of the present invention.
Coal as shown in Figure 1 grinds anti-spontaneous combustion structure, including coal mill body 10, coal mill feed pipe 8, coal mill discharge nozzle 4 and thermometric thermal resistance 5,
Described coal mill feed pipe 8 and coal mill discharge nozzle 4 are separately positioned on described coal mill body 10 two ends and are folded upward at extending,
Described thermometric thermal resistance 5 is arranged on described coal mill discharge nozzle 4, described thermometric thermal resistance 5 is arranged on described coal mill discharge nozzle 4 and grinds side near coal, coal dust is when coal mill body is sent, thrown to coal mill discharge nozzle 4 due to the effect of centrifugal force and ground side away from coal, if being mounted remotely from coal mill body side, then coal dust can wear and tear thermometric thermal resistance 5, causes it to damage, Frequent Accidents.
Central controller 7, temperature sensor 6, cooling system 3 and water tank 1,
It is outside that cooling system 3 is wrapped in coal mill discharge nozzle 4, and is connected with water tank 1 with feed tube by drain pipe, is provided with valve 2 on drain pipe and feed tube,
Temperature sensor 6 is arranged on thermometric thermal resistance 5, described valve 2 and described temperature sensor 6 and the communication of described central controller 7.
Also include that inlet valve 9, described inlet valve 9 are arranged on described coal mill feed pipe 8, described inlet valve 9 and the communication of described central controller 7.
During use, when coal mill discharge nozzle 4 temperature reaches certain value, central controller 7 controls inlet valve 9 and stops charging, and meanwhile, cold water is sent into cooling system 3 by water tank 1, lowers the temperature coal mill discharge nozzle 4.
Coal of the present invention grinds anti-spontaneous combustion structure, the accident caused at effective prevention and control coal disintegrating outlet owing to temperature is too high, it is ensured that production properly functioning, avoids the accident caused by detection equipment attrition simultaneously.

Claims (3)

1. coal grinds anti-spontaneous combustion structure, it is characterised in that include coal mill body, coal mill feed pipe, coal mill discharge nozzle and thermometric thermal resistance,
Described coal mill feed pipe and coal mill discharge nozzle are separately positioned on described coal mill body two ends and are folded upward at extending,
Described thermometric thermal resistance is arranged on described coal mill discharge nozzle, and described thermometric thermal resistance is arranged on described coal mill discharge nozzle and grinds side near coal.
2. coal grinds anti-spontaneous combustion structure as claimed in claim 1, it is characterised in that central controller, temperature sensor, cooling system and water tank,
Cooling system is wrapped in outside coal mill discharge nozzle, and is connected with water tank with feed tube by drain pipe, is provided with valve on drain pipe and feed tube,
Temperature sensor is arranged on thermometric thermal resistance, described valve and described temperature sensor and described central controller communication.
3. coal grinds anti-spontaneous combustion structure as claimed in claim 1, it is characterised in that also include that inlet valve, described inlet valve are arranged on described coal mill feed pipe, described inlet valve and described central controller communication.
CN201610263988.XA 2016-04-26 2016-04-26 Spontaneous combustion prevention structure of coal mill CN105921250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610263988.XA CN105921250A (en) 2016-04-26 2016-04-26 Spontaneous combustion prevention structure of coal mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610263988.XA CN105921250A (en) 2016-04-26 2016-04-26 Spontaneous combustion prevention structure of coal mill

Publications (1)

Publication Number Publication Date
CN105921250A true CN105921250A (en) 2016-09-07

Family

ID=56836210

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610263988.XA CN105921250A (en) 2016-04-26 2016-04-26 Spontaneous combustion prevention structure of coal mill

Country Status (1)

Country Link
CN (1) CN105921250A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1712328A (en) * 2004-06-23 2005-12-28 李权翊 Multifunctional container
CN203501718U (en) * 2013-08-16 2014-03-26 上海明华电力技术工程有限公司 Heat recovery system of primary air cooler
JP2014231049A (en) * 2013-05-30 2014-12-11 中国電力株式会社 Mill temperature control method
CN104437817A (en) * 2014-11-26 2015-03-25 广西鱼峰水泥股份有限公司 Method for reducing number of times of thermal resistor failures at coal milling outlet
CN104801416A (en) * 2015-04-23 2015-07-29 东南大学 Control system and control method for outlet temperature of novel coal mill
CN104913325A (en) * 2015-06-30 2015-09-16 广东电网有限责任公司电力科学研究院 Combustion control method of boiler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1712328A (en) * 2004-06-23 2005-12-28 李权翊 Multifunctional container
JP2014231049A (en) * 2013-05-30 2014-12-11 中国電力株式会社 Mill temperature control method
CN203501718U (en) * 2013-08-16 2014-03-26 上海明华电力技术工程有限公司 Heat recovery system of primary air cooler
CN104437817A (en) * 2014-11-26 2015-03-25 广西鱼峰水泥股份有限公司 Method for reducing number of times of thermal resistor failures at coal milling outlet
CN104801416A (en) * 2015-04-23 2015-07-29 东南大学 Control system and control method for outlet temperature of novel coal mill
CN104913325A (en) * 2015-06-30 2015-09-16 广东电网有限责任公司电力科学研究院 Combustion control method of boiler

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Application publication date: 20160907