CN106867555A - The method of deposit in cleaning coal damping steam rotary dryer - Google Patents
The method of deposit in cleaning coal damping steam rotary dryer Download PDFInfo
- Publication number
- CN106867555A CN106867555A CN201710084550.XA CN201710084550A CN106867555A CN 106867555 A CN106867555 A CN 106867555A CN 201710084550 A CN201710084550 A CN 201710084550A CN 106867555 A CN106867555 A CN 106867555A
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- CN
- China
- Prior art keywords
- drying machine
- discharge
- cleaning fluid
- deposit
- coal
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
A kind of method for clearing up deposit in coal damping steam rotary dryer, belongs to coking facility maintenance field, and it includes：（1）Stop to coal supply in drying machine, follow-up belt runs well, and cuts off drying machine steam valve；Drying machine is run 1 hour with the frequency of 50Hz；（2）Spiral reversion discharge gate is set up in drying machine discharge end, using electronic plate；（3）Drying machine rotating operation frequency to 30Hz is reduced, from drying machine feed end, cleaning fluid is injected to drying machine feed end, cleaned automatically in drying machine rotation process, the coal charge and debris of deposition drain into sedimentation basin；（4）When discharge gate does not have deposit to discharge, feed end cleaning fluid is closed, the speed that drying machine recovers to 50Hz run, the cleaning fluid in emptying drying machine.Scavenging period of the present invention is short and efficiency high.
Description
Technical field
The invention belongs to coking facility maintenance field, and in particular to the cleaning of coal damping facility.
Background technology
Coal damping is that the Back-pressure steam after being generated electricity using dry coke quenching carries out indirect heat exchange in rotary dryer with coal charge, is dropped
Low as-fired coal moisture, to reduce coking energy input, improve coking technique, improve coke quality or expand weak caking coal consumption
Coking technology.
During coal charge carries out heat transfer process in steam rotary dryer with heat exchanger tube, the adhesion such as part coal charge, debris is had
On drying machine heat exchange tube, gradually feed opening being blocked after accumulation causes coal charge discharge in drying machine difficult, influence drying machine
Disposal ability, sticks to coal charge, debris on drying machine heat exchange tube etc. and is hardened through vapor baking, and cleaning difficulty is larger, and expense
It is high.Manual cleaning is used at present, because drying machine is limited confined space, potential safety hazard is larger during cleaning, and labour intensity is big.
How deposit in drying machine is quickly effectively cleared up, concern the disposal ability and efficiency of drying machine.
The content of the invention
The invention aims to the deposit fast and effeciently cleared up in drying machine, when reducing clearing times and cleaning
Between, improve drying machine operational efficiency.
Technical solution of the present invention：
（1）When drying machine discharging coal amount is less than normal, drying machine feed auger motor and operation current of electric increase, but open drive
When, electric current recovers normal, illustrates that deposit is more between heat exchanger tube in drying machine, influences discharge, need to be cleared up.
（2）Before cleaning drying machine inner product coal, stop to coal supply in drying machine, follow-up belt runs well, and cuts off drying machine
Steam valve.Drying machine is run 1 hour with the frequency of 50Hz, discharges coal charge that is remaining in drying machine, being automatically drained out.
（3）Drying machine discharge end sets up spiral reversion discharge gate, load displacing screw reversion.
（4）Drying machine rotating operation frequency is 30Hz, from drying machine feed end, to injection coal charge cleaning fluid in drying machine,
Cleaned automatically in drying machine rotation process, load displacing screw, discharge gate of the debris such as coal charge of deposition through inverting drain into sedimentation basin.
（4）When discharge gate does not have deposit to discharge, feed end cleaning fluid is closed, drying machine is recovered to the rotation of 50Hz
Frequency is run, the cleaning fluid in emptying drying machine.
（5）Drying machine shuts down, and operating personnel enters in drying machine from feed end, what manual cleaning was not washed wherein
Residue；After confirmation is errorless, drying machine is recovered to running status.
（6）Drying machine steam valve is opened slightly, is preheated toward the interior a small amount of steam of feeding of drying machine heat exchange tube.Drying is changed
After heat pipe, return to normal production.
Present invention tool has the advantage that：
1st, can to clear up the long-pending thing time short for the present invention（Needed to foreshorten within 72 hours 8-10 hours by current manual cleaning）, shorten
Parking cleaning process time；Meanwhile, improve cleaning efficiency.（After current manual cleaning, about 15 tons or so are still left in drying machine
The deposit such as coal charge, cannot manually be cleaned to）Using the present invention, accomplish that thorough cleaning is clean.
2nd, cleaned automatically using injection cleaning fluid during drying machine microrunning, reduce manual labor amount, save clear
Reason expense, reduces security risk.Enter present invention only requires 2-3 people and cleared up about 1 hour in drying machine.
3rd, after cleaned immersion bubble, cleaning, product coal and debris cleaning are more thorough, and cleaning frequency is dropped by monthly clearing up 1 time
It is to clear up one every year to twice, improves equipment operating efficiency.
In a word, present invention cleaning is more convenient effectively improves cleaning efficiency, reduces labour intensity, reduces year clear
Reason frequency, improves drying machine operational efficiency, reduces operating cost, improves the economic benefit of coal damping.
Specific embodiment
（1）Spiral reversion discharge gate is set up in drying machine discharge end：I.e. existing drying machine spiral discharging cylinder envelope
On the closure plate of closed end（According to drying machine disposal ability）Open up diameter not less than 800mm discharge circular hole, and by discharging channel with
Discharge circular hole is welded, and the end of discharging channel sets plate, and plate is controlled using the motor switch at scene.（Existing drying machine
Spiral discharging cylinder to close the discharging of another end opening in one end.The present invention is to be transformed into the spiral discharging cylinder of existing drying machine
For two ends can discharge, one piece of closure plate that can be pulled and pushed is set in the discharging opening newly opened（That is plate）, the closure plate can be in needs
Opened during the end discharge, it is not necessary to blocked during discharge）.
（2）Drying machine main steam valve is closed, is stopped to coal supply in drying machine；Keep the follow-up belt of load displacing screw and drying
Machine runs well, and discharges coal charge that is remaining in drying machine, being automatically drained out, needs 1 hour；
（3）When drying machine discharge end does not have coal charge to discharge, drying machine stops the rotation operation, splits out feed auger, 1 hour used time；
（4）Open discharge end discharge gate, load displacing screw reversion operation（The phase connection of spiral terminal box two is exchanged）, drying machine is with 30Hz
Frequency rotating operation.Coal charge cleaning fluid is injected from feed end, the flow for injecting cleaning fluid is 1.8 ton hours, and pressure is
0.05MPa；Automatic cleaning is rotated using drying machine.5-6 hours, discharge end discharge gate did not had coal charge and deposit to discharge substantially；
（5）After drying machine shuts down, operating personnel enters drying machine, carries out manual cleaning, checks, 1 hour used time, thoroughly clear
Reason is clean；
（6）Feed auger is installed, discharge gate is closed, the phase connection of discharging spiral terminal box two recovers, chain unlatching load displacing screw（Just
Turn）And follow-up belt, the small by-passing valve of steam is opened toward being passed through a small amount of steam preheating in drying machine heat exchange tube.After drying heat exchanger tube,
Feed auger and upstream belt are opened, is returned to normal production.
Explanation：Cleaning fluid of the present invention adds metal abluent using the industrial circulating water of Taiyuan Iron and Steel Co. production treatment（Industry is followed
Ring water：Metal abluent=1000g：1g）, industrial cycle water quality index：PH value is 6~9, turbidity≤30 NTU, suspension≤30
Mg/l, oil-containing（Infrared measure）≤5.0 mg/l.
Claims (1)
1. the method for clearing up deposit in coal damping steam rotary dryer, including the description below：
（1）Stop to coal supply in drying machine, follow-up belt runs well, and cuts off drying machine steam valve；Drying machine is with 50Hz's
Frequency is run 1 hour, discharges coal charge that is remaining in drying machine, being automatically drained out；
（2）Spiral reversion discharge gate is set up in drying machine discharge end, and is needed spiral reversion discharge gate closure using electronic plate
Will when open plate discharge；
（3）Drying machine rotating operation frequency to 30Hz is reduced, from drying machine feed end, cleaning fluid is injected to drying machine feed end,
The flow of cleaning fluid is 1.8 ton hours, and pressure is 0.05MPa；Cleaned automatically in drying machine rotation process, the coal charge of deposition and
Load displacing screw, discharge gate of the debris through inverting, drain into sedimentation basin；
（4）When discharge gate does not have deposit to discharge, feed end cleaning fluid is closed, drying machine is recovered to the speed of 50Hz
Operation, the cleaning fluid in emptying drying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084550.XA CN106867555B (en) | 2017-02-16 | 2017-02-16 | The method for clearing up deposit in coal damping steam rotary dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084550.XA CN106867555B (en) | 2017-02-16 | 2017-02-16 | The method for clearing up deposit in coal damping steam rotary dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106867555A true CN106867555A (en) | 2017-06-20 |
| CN106867555B CN106867555B (en) | 2019-09-24 |
Family
ID=59166162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710084550.XA Active CN106867555B (en) | 2017-02-16 | 2017-02-16 | The method for clearing up deposit in coal damping steam rotary dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106867555B (en) |
Citations (12)
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| CN204320766U (en) * | 2014-11-14 | 2015-05-13 | 山西太钢不锈钢股份有限公司 | A kind of steel tube extrusion cylinder cleaning device |
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| CN101776371B (en) * | 2010-01-06 | 2012-07-11 | 兰州瑞德干燥技术有限公司 | Superheated steam rotary drying and steam tail gas indirect rotary drying method for lignite |
| KR101453667B1 (en) * | 2013-05-02 | 2014-11-03 | 주식회사 포스코 | Apparatus for charging coal in charging car of coke oven |
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| US6271427B1 (en) * | 1998-08-21 | 2001-08-07 | Bengt-Sture Ershag | Method for recovery of carbon and combinations of hydrocarbons from polymers, preferably in the form of disposed tires, by pyrolysis in a pyrolysis reactor |
| CN2764508Y (en) * | 2005-01-28 | 2006-03-15 | 云南昆船设计研究院 | Tank cleaning device |
| CN101831314A (en) * | 2009-03-12 | 2010-09-15 | 兰州瑞德干燥技术有限公司 | Method for humidifying and drying coking coal in coke oven and equipment therefor |
| CN201459025U (en) * | 2009-06-26 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Graphite removing device for coke oven risers |
| US8100990B2 (en) * | 2011-05-15 | 2012-01-24 | Avello Bioenery, Inc. | Methods for integrated fast pyrolysis processing of biomass |
| CN103017506A (en) * | 2012-12-05 | 2013-04-03 | 东台市食品机械厂有限公司 | Non-detaching cleaning device for enclosed cover of rotary drum drier |
| KR101497571B1 (en) * | 2014-06-17 | 2015-03-02 | 주식회사 한국테크놀로지 | Apparatus for Supply Coal for Dust-Reduction and Dispersion Supply in System for Drying Coal |
| CN105423738A (en) * | 2014-09-19 | 2016-03-23 | 天津市天亨洗涤剂有限公司 | Steam-pipe rotatory dryer |
| CN204148217U (en) * | 2014-09-26 | 2015-02-11 | 周庆忠 | The multi-functional automatic cleaning equipment of oil plant container |
| CN104457178A (en) * | 2014-11-13 | 2015-03-25 | 江苏志远节能炉业设备有限公司 | Environment-friendly rotary drying furnace with self-cleaning function |
| CN204320766U (en) * | 2014-11-14 | 2015-05-13 | 山西太钢不锈钢股份有限公司 | A kind of steel tube extrusion cylinder cleaning device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106867555B (en) | 2019-09-24 |
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