CN106867555B - The method for clearing up deposit in coal damping steam rotary dryer - Google Patents
The method for clearing up deposit in coal damping steam rotary dryer Download PDFInfo
- Publication number
- CN106867555B CN106867555B CN201710084550.XA CN201710084550A CN106867555B CN 106867555 B CN106867555 B CN 106867555B CN 201710084550 A CN201710084550 A CN 201710084550A CN 106867555 B CN106867555 B CN 106867555B
- Authority
- CN
- China
- Prior art keywords
- drying machine
- discharge
- cleaning solution
- coal
- deposit
- 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.)
- Active
Links
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
A method of deposit in cleaning coal damping steam rotary dryer belongs to coking facility maintenance field, it includes: that (1) stops the coal supply into drying machine, and subsequent 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 added in drying machine discharge end, using electronic plate；(3) drying machine rotating operation frequency is reduced to inject cleaning solution to 30Hz from drying machine feed end to drying machine feed end, clean automatically in drying machine rotation process, the coal charge and sundries of deposition drain into sedimentation basin；(4) when discharge gate does not have deposit discharge, feed end cleaning solution is closed, drying machine is restored to the speed of 50Hz to run, empties the cleaning solution in drying machine.Scavenging period of the present invention is short and high-efficient.
Description
Technical field
The invention belongs to coking facility maintenance fields, and in particular to the cleaning of coal damping facility.
Background technique
Coal damping is to carry out indirect heat exchange, drop with coal charge in rotary dryer using the Back-pressure steam after dry coke quenching power generation
Low as-fired coal moisture, to reduce coking energy input, improve coking technique, improve coke quality or expand weak caking coal dosage
Coking technology.
Coal charge carries out in heat transfer process in steam rotary dryer with heat exchanger tube, has the adherency such as part coal charge, sundries
On drying machine heat exchange tube, gradually feed opening being blocked after accumulation causes coal charge discharge in drying machine difficult, influences drying machine
Processing capacity, the coal charge being adhered on drying machine heat exchange tube, sundries etc. are hardened through vapor baking, and cleaning difficulty is larger, and expense
It is high.Manual cleaning is used at present, and since drying machine is limited confined space, security risk is larger when cleaning, and large labor intensity.
How deposit in drying machine is quickly and effectively cleared up, the processing capacity and efficiency concerning drying machine.
Summary of the invention
The invention aims to fast and effeciently clear up the deposit 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 empty wagons is transported
When turning, electric current restores normal, illustrates that deposit is more between heat exchanger tube in drying machine, influences discharge, need to be cleared up.
(2) before clearing up drying machine inner product coal, stop the coal supply into drying machine, subsequent belt runs well, and cuts off drying machine
Steam valve.Drying machine is run 1 hour with the frequency of 50Hz, and the remaining, coal charge that can be automatically drained out in drying machine is discharged.
(3) drying machine discharge end adds spiral reversion discharge gate, load displacing screw reversion.
(4) drying machine rotating operation frequency is 30Hz, and from drying machine feed end, coal charge cleaning solution is injected into drying machine,
It is cleaned automatically in drying machine rotation process, load displacing screw, discharge gate of the sundries such as coal charge of deposition through inverting drain into sedimentation basin.
(4) when discharge gate does not have deposit discharge, feed end cleaning solution is closed, drying machine is restored to the rotation of 50Hz
Frequency operation, empties the cleaning solution in drying machine.
(5) drying machine shuts down, and operating personnel enters in drying machine from feed end, what manual cleaning did not washed wherein
Residue；Confirm it is errorless after, drying machine is restored to operating status.
(6) drying machine steam valve is opened slightly, and a small amount of steam is sent into drying machine heat exchange tube and is preheated.Drying is changed
After heat pipe, return to normal production.
The present invention has an advantage that
1, it is short (needing to foreshorten to 8-10 hour for 72 hours by current manual cleaning) can to clear up the long-pending object time by the present invention, contracts
The short parking cleaning processing time；Meanwhile improving cleaning efficiency.(at present after manual cleaning, still there are about 15 tons in drying machine
The deposits such as the coal charge of left and right, can not manually be cleaned to) using the present invention, accomplish that thorough cleaning is clean.
2, it is cleaned automatically using injection cleaning solution during drying machine microrunning, reduces manual labor amount, saved clear
Reason expense reduces security risk.Enter in drying machine present invention only requires 2-3 people and clears up about 1 hour.
3, cleaned liquid impregnates, after cleaning, and product coal and sundries cleaning are more thorough, and cleaning frequency is dropped by monthly clearing up 1 time
To clear up one every year to twice, equipment operating efficiency is improved.
In short, present invention cleaning is more convenient effectively, cleaning efficiency is improved, labor intensity is reduced, it is clear to reduce year
Frequency is managed, drying machine operational efficiency is improved, reduces operating cost, improve the economic benefit of coal damping.
Specific embodiment
(1) spiral reversion discharge gate is added in drying machine discharge end: i.e. in the envelope of the spiral discharging cylinder of existing drying machine
Open up (according to drying machine processing capacity) the discharge circular hole that diameter is not less than 800mm on the closure plate of closed end, and by discharging channel with
Plate is arranged in the welding of discharge circular hole, the end of discharging channel, and plate is controlled using the motor switch at scene.(existing drying machine
Spiral discharging cylinder be another end opening discharging closed at one end.The present invention is to be transformed into the spiral discharging cylinder of existing drying machine
It can discharge for both ends, set one piece of closure plate that can be pulled and pushed (i.e. plate) in the discharge port newly opened, which can need
It is opened when the end discharge, does not need to block when discharge).
(2) drying machine main steam valve is closed, the coal supply into drying machine is stopped；Keep the subsequent belt of load displacing screw and drying
Machine runs well, and the remaining, coal charge that can be automatically drained out in drying machine is discharged, needs 1 hour；
(3) when drying machine discharge end does not have a coal charge discharge, drying machine stops rotating operation, splits out feed auger, the used time 1 is small
When；
(4) open discharge end discharge gate, load displacing screw reversion operation (exchange of two phase connection of spiral terminal box), drying machine with
The frequency rotating operation of 30Hz.Coal charge cleaning solution is injected from feed end, the flow for injecting cleaning solution is 1.8 ton/hours, and pressure is
0.05MPa；Automatic cleaning is rotated using drying machine.5-6 hours, discharge end discharge gate was discharged without coal charge and deposit substantially；
(5) after drying machine shuts down, operating personnel enters drying machine, carries out manual cleaning, checks, the used time 1 hour, thorough
Bottom is cleaned out；
(6) feed auger is installed, discharge gate is closed, discharging two phase connection of spiral terminal box restores, chain unlatching discharge spiral shell
(rotating forward) and subsequent belt are revolved, the small by-passing valve of steam is opened and is passed through a small amount of steam preheating in drying machine heat exchange tube.Drying heat exchange
Guan Hou opens feed auger and upstream belt, returns to normal production.
Illustrate: the industrial circulating water that cleaning solution of the present invention uses Taiyuan Iron and Steel Co. production to handle adds metal abluent, and (industry follows
Ring water: metal abluent=1000g:1g), industrial cycle water quality index: pH value is 6~9, turbidity≤30 NTU, suspended matter≤30
Mg/l, oil-containing (infrared measure)≤5.0 mg/l.
Claims (1)
1. a kind of method of deposit in cleaning coal damping steam rotary dryer, including following the description:
(1) stop the coal supply into drying machine, subsequent belt runs well, and cuts off drying machine steam valve；Drying machine is with 50Hz's
Frequency is run 1 hour, and the remaining, coal charge that can be automatically drained out in drying machine is discharged；
(2) spiral reversion discharge gate is added in drying machine discharge end, and is blocked spiral reversion discharge gate using electronic plate, needed
Plate discharge is opened when wanting；
(3) it reduces drying machine rotating operation frequency and injects cleaning solution to drying machine feed end to 30Hz from drying machine feed end,
The flow of cleaning solution is 1.8 ton/hours, pressure 0.05MPa；Cleaned automatically in drying machine rotation process, the coal charge of deposition and
Sundries inverts discharge gate through spiral, drains into sedimentation basin；
(4) when discharge gate does not have deposit discharge, feed end cleaning solution is closed, drying machine is restored to the speed of 50Hz
Operation empties the cleaning solution in 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 CN106867555A (en) | 2017-06-20 |
| CN106867555B true 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 (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101776371A (en) * | 2010-01-06 | 2010-07-14 | 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 |
| 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 |
| KR101453667B1 (en) * | 2013-05-02 | 2014-11-03 | 주식회사 포스코 | Apparatus for charging coal in charging car of coke oven |
| CN204148217U (en) * | 2014-09-26 | 2015-02-11 | 周庆忠 | The multi-functional automatic cleaning equipment of oil plant container |
| 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 |
| 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 |
| CN204944084U (en) * | 2015-07-03 | 2016-01-06 | 无锡市稼宝药业有限公司 | There is the rotary dryer that material cleaning function brushed lightly by internal heat dissipating pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105423738A (en) * | 2014-09-19 | 2016-03-23 | 天津市天亨洗涤剂有限公司 | Steam-pipe rotatory dryer |
| 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 |
-
2017
- 2017-02-16 CN CN201710084550.XA patent/CN106867555B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101776371A (en) * | 2010-01-06 | 2010-07-14 | 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 |
| 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 |
| 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 |
| CN204944084U (en) * | 2015-07-03 | 2016-01-06 | 无锡市稼宝药业有限公司 | There is the rotary dryer that material cleaning function brushed lightly by internal heat dissipating pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106867555A (en) | 2017-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101417841B (en) | Process for treating revolving furnace flue gas dedusting water from steel mill by low hardness method | |
| CN107324512B (en) | Scale cleaning agent and cleaning method for slag flushing water system of iron works | |
| CN103693841A (en) | Method and system for deep dehydration of sludge | |
| CN102586793A (en) | Treatment system for tail gas generated during acid and water conversion in cold rolling acid-washing acid-regenerating process | |
| CN106867555B (en) | The method for clearing up deposit in coal damping steam rotary dryer | |
| CN110373220B (en) | Full-automatic harmless treatment method for tar slag | |
| CN104907292B (en) | A kind of high sulfur Gas Fields gas gathering station sand washing cleaning | |
| CN110550781A (en) | Self-cleaning type coal slime water separation treatment device | |
| CN206767733U (en) | A kind of coagulating sedimentation reactor automatic mud removing system with sludge reflux | |
| CN106673397B (en) | Oil-sludge separation device | |
| CN110590105A (en) | Rotary drum type sludge dewatering and drying integrated machine | |
| CN204543764U (en) | A kind of waste oil recycling equipment for engineering shop | |
| CN108441589B (en) | A kind of drum process waste-heat recovery device used for steel slag treatment | |
| CN106995718B (en) | Treatment method of oil field settling tank bottom sludge discharge online treatment device | |
| CN215049699U (en) | Domestic waste incineration fly ash water desalination system | |
| CN109708518A (en) | For the cleaning agent of desalination sewage heat exchanger, on-line cleaning method and system | |
| CN214457569U (en) | Sludge dewatering mummification processing system | |
| CN209866936U (en) | Two stoving intelligence kitchen discarded object treatment in situ equipment | |
| CN206997260U (en) | Iron-smelter flushing cinder water-system pipeline fouling cleaning device | |
| CN203653444U (en) | Improved lime milk preparation system utilizing municipal reclaimed water lime treatment | |
| CN107088326A (en) | Belt filter press | |
| CN210656483U (en) | Self-cleaning type coal slime water separation treatment device | |
| CN2921017Y (en) | Liquid asphalt slag discharging pat | |
| CN201162000Y (en) | Automatic deslagging apparatus of gas producer | |
| CN105110600A (en) | Calcium carbonate chemical sludge dehydration discharge device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |