CN108117875B - Method for detecting blockage of coal feeding port of coke ovens - Google Patents
Method for detecting blockage of coal feeding port of coke ovens Download PDFInfo
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- CN108117875B CN108117875B CN201611072986.9A CN201611072986A CN108117875B CN 108117875 B CN108117875 B CN 108117875B CN 201611072986 A CN201611072986 A CN 201611072986A CN 108117875 B CN108117875 B CN 108117875B
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- 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
- C10B31/00—Charging devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
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Abstract
A method for detecting the blockage of coal feeding port of coke oven includes such steps as installing a temp measurer on the coal charging car, moving the cover taking machine of coal charging car to take cover, lowering the sleeve of coal charging car, detecting the temp in coal feeding port, and transmitting data to PLC system on coal charging car, and moving the temp measurer and cover taking machine synchronously, moving the cover taking machine to upper limit, aligning them to coal feeding port of charring chamber for measuring temp, which is 950-1000 deg.C and over 800 deg.C, and if it is less than 500 deg.C, outputting relative blockage information to coal charging car.
Description
Technical Field
The invention belongs to the coke oven technology, and particularly relates to a method for detecting the blockage of coal feeding ports of coke ovens.
Background
The coal charging port is a necessary passage for charging coking blending coal into the coking chamber by a top-loading coke oven coal charging car, and a method for detecting the blockage of the coal charging port is not seen at present. The mechanical striking rod type detection device for the furnace cover of the coal feeding port of the existing coke oven is arranged on a coal charging car, a cover taking machine is lifted after taking the cover, and the furnace cover is limited and detected after touching the striking rod of the device.
The conventional furnace cover sorption detection device has the problems that is easy to deform, the upper limit position of a machine after the furnace cover is taken has deviation, and the detection fails, and secondly, after the double-layer energy-saving heat-insulating furnace cover is generally applied at present, the lower layer of a -denier double-layer furnace cover falls off, the device cannot detect, and coal blockage is still caused during coal charging.
The coke oven has the advantages that the application of a push of the conventional oven cover absorption confirmation device is difficult, and the coal blockage phenomenon caused by the improper opening of the oven cover is frequent, in the dry distillation production process of the coke oven, free carbon is accumulated at a coal feeding port to sometimes form secondary coke to block the coal feeding port, and the coal can be blocked at the moment when the coal is fed, in the coal charging process of the coke oven, the coal feeding port is blocked at , the coal is easy to smoke and fire at high temperature, the environment is polluted, the coal blockage treatment is very difficult, all devices of the coal charging car need to be retracted to the original positions, the coal charging car is moved away, after the coal pile is manually cleaned, the unabsorbed oven cover is opened by a scraper knife, or impurities such as the secondary coke at the coal feeding port are cleaned, the environmental pollution is serious in the process, coal feeding flame and crude gas overflow, and a great safety risk also exists.
Disclosure of Invention
The invention aims to provide a method for detecting the blockage of a coal feeding port of coke ovens, which can find the blockage of the coal feeding port of a coke oven carbonization chamber in time, avoid coal blockage faults caused by coal charging operation when the coal feeding port is blocked, ensure the safety of treating personnel, reduce the environmental pollution caused by the treatment of the blockage of the coal feeding port in the coal charging operation process and reduce the burden of manual cleaning.
In order to achieve the purpose, the technical scheme of the invention is as follows:
A method for detecting the blockage of coal feeding port of coke oven includes such steps as installing a temp measurer on the coal truck, setting temp measurer for each coal feeding port, synchronously moving the temp measurer with the cover taking machine of coal truck, extending the temp measurer to the coal feeding port of coking chamber for measuring the temp of coal feeding port at 950-1000 deg.C, judging if the coal feeding port is blocked, opening the coal cap, and stopping the coal feeding port if the coal feeding port is not blocked, and outputting alarm if the coal feeding port is less than 500 deg.C.
Preferably, the temperature measuring device is arranged in a fixed guide sleeve of the coal charging car and extends into a coal feeding chute corresponding to the coal charging port, through holes for the temperature measuring device to enter and exit are arranged on the side of the coal feeding chute , and small openable and closable pieces are arranged above the through holes.
Preferably, the temperature measuring device is an infrared thermometer which is installed in a stainless steel tube, a hole is formed in the lower part of the end of the stainless steel tube, so that the direction of a temperature measuring head of the infrared thermometer is downward, and the position of the hole of the stainless steel tube is aligned with a coal feeding port of the carbonization chamber.
Preferably, the diameter of the rear vehicle internal thread of the stainless steel pipe is matched with that of the end part of a piston rod of the driving oil cylinder and is connected to the end part of the piston rod of the driving oil cylinder, a hole is formed in the position, close to the tail, of the stainless steel pipe, a conducting wire penetrates through the hole in the tail of the stainless steel pipe and is connected with the infrared thermometer, and the driving oil cylinder is installed on a fixed frame of the coal charging vehicle.
The detection principle of the invention is as follows:
the production process of the coke oven is a process of heating and dry distilling the coking blended coal in a coking chamber in an air-isolated way, and the temperature in the coking chamber is over 1000 ℃ under the normal condition. In the production process of the coke oven, the furnace cover of the coal charging port is closed, the surface temperature of the furnace cover is 200-300 ℃, during coal charging operation, the furnace cover is opened, after coal charging is finished, the furnace cover is closed, and the opening and closing actions of the furnace cover are executed by corresponding mechanisms of the coal charging car.
The temperature measuring device is arranged on the coal charging car, the position of a furnace cover of the coal charging port is detected, the temperature difference before and after the opening and the closing of the furnace cover is utilized, if the temperature difference is less than 500 ℃, the coal charging port is indicated to have the blocking phenomenon, related signals are brought into the interlocking condition of the operation of the coal charging car, and the coal charging car starts the coal charging operation only after a normal opening signal of the furnace cover is obtained.
The invention has the beneficial effects that:
the detection technical method of the invention fully combines the production characteristics of the coke oven, the operation characteristics of the coal charging car and the automatic detection technology, can quickly and effectively detect that the oven cover is opened, eliminates the problems of coal charging hole blockage and coal charging stop caused by the fact that the coal charging hole cover is not opened, and avoids the environmental protection risk of smoke and fire in the coal charging operation process of the coke oven and the safety risk in the fault processing process. The application of the detection method provides technical support for realizing the unmanned coal charging car. The detection method is the most direct detection technology for the blockage of the coal feeding port, and the reliability is greatly improved.
The invention is different from the prior art in that:
the method fully utilizes the characteristics that the temperature of the area of the coal feeding port is low when the coal feeding port is blocked and the temperature of the area of the coal feeding port is suddenly increased when the coal feeding port is normally opened, detects the temperature change of the area through the temperature measuring device, directly detects whether the coal feeding port is normally opened, the furnace cover is not normally opened, the coal feeding port is blocked by secondary coke and other problems can be detected and judged at , ensures that the problems can be dealt with in advance under abnormal conditions, avoids coal blockage faults caused by the blockage of the coal feeding port during coal charging operation, and has the characteristics of safety, high efficiency, cleanness and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is an assembly diagram of a temperature measuring device according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1 and 2, the method for detecting the blockage of the coal feeding port of coke ovens comprises the steps of installing a temperature measuring device 1 on a coal charging car, arranging a temperature measuring device 1 corresponding to each coal feeding port, after a cover taking machine of the coal charging car takes a cover, before an inner sleeve 100 of the coal charging car descends (an outer sleeve 200 of the coal charging car and a smoke guide channel 300), detecting the temperature of the area of the coal feeding port by the temperature measuring device, transmitting data to a vehicle-mounted PLC system of the coal charging car, synchronously operating the temperature measuring device 1 and the cover taking machine of the coal charging car, extending the temperature measuring device 1 out simultaneously after the cover taking machine of the coal charging car reaches an upper limit, measuring the temperature of the coal feeding port of a carbonization chamber, setting the temperature measured by the temperature measuring device to be above 800 ℃ if the temperature of the coal feeding port of the carbonization chamber is above 1000 ℃, setting the temperature measured by the temperature measuring device to be below 500 ℃ if the coal feeding port of a coke oven is blocked, indicating that the coal feeding port is blocked, and outputting corresponding temperature measuring information to the temperature measuring device when the coal feeding port is blocked by an operator according to the corresponding operation stop the operation of the coal charging car.
Preferably, the temperature measuring device 1 is an infrared thermometer which is installed in the stainless steel tube 2, the lower part of the end 2 of the stainless steel tube is provided with a hole, so that the direction of a temperature measuring head of the infrared thermometer is downward, and the position of the hole of the stainless steel tube is aligned with the coal feeding port of the carbonization chamber.
Preferably, the diameter of the rear end car internal thread of the stainless steel tube 2 is matched with the diameter of the end part of a piston rod of the driving oil cylinder 3 and is connected to the end part of the piston rod of the driving oil cylinder 3, a hole is formed in the position close to the tail part of the stainless steel tube, a conducting wire penetrates through the hole in the tail part of the stainless steel tube 2 and is connected with the infrared thermometer, and the driving oil cylinder is installed on a fixed frame of the coal car.
Preferably, the temperature measuring device 1 is arranged in a fixed guide sleeve 4 of a coal charging car and extends into a coal feeding chute 5 corresponding to a coal feeding port, through holes for the stainless steel pipes 2 to enter and exit are arranged on the 5 side of the coal feeding chute 5, and small freely openable and closable 6 fans are arranged above the through holes.
Each coal charging car is provided with 4-5 coal charging ports according to different coke oven models, each coal charging port is provided with sets of temperature measuring devices, and the coal charging port is judged to be blocked as long as sets of data of all the coal charging port temperature measuring devices are abnormal.
The invention is mainly used for detecting that the coal feeding port at the top of the carbonization chamber is normally opened before the coal charging operation of the coke oven coal charging car, thereby meeting the coal charging operation conditions, eliminating the problems of coal feeding port blockage and coal charging stop caused by the fact that the coal charging hole cover is not opened or the coal feeding port is coked secondarily, and avoiding the environment-friendly risk of smoke and fire in the coal charging operation process of the coke oven and the safety risk in the fault treatment process. The invention fully combines the production characteristics of the coke oven, the operation characteristics of the coal charging car and the automatic detection technology, can effectively and conveniently detect whether the coal charging port is normally opened, and the detection signal is safely interlocked with the operation of the coal charging car, thereby avoiding the coal blockage fault in the coal charging process caused by the blockage of the coal charging port.
The automatic and unmanned production operation of the coke oven is the main direction of the development of the current coking technology, the environmental standard requirement of the coking production process is gradually improved, the effective and rapid detection of the blockage of the coal charging port of the coke oven is the necessary requirement of realizing the unmanned and clean coal charging of a coal charging car, and the detection method of the invention fully combines the production characteristics of the coke oven, the operation characteristics of the coal charging car and the automatic detection technology, has small investment, excellent effect, safety and environmental protection, therefore, the push has very broad application prospect.
Claims (4)
- A method for detecting the blockage of coal feeding port of coke oven includes such steps as installing a temp measurer on the coal truck, setting temp measurer for each coal feeding port, synchronously moving the temp measurer and the cover taking machine of coal truck, extending the temp measurer to the coal feeding port of coking chamber, measuring the temp in coal feeding port of coking chamber at 950-1000 deg.C, judging if the coal feeding port is blocked, opening the coal feeding port, and stopping coal feeding if the coal feeding port is blocked, and outputting alarm if the coal feeding port is less than 500 deg.C.
- 2. The method for detecting the blockage of the coal feeding port of the coke oven as claimed in claim 1, wherein the temperature measuring device is arranged in a fixed guide sleeve of a coal charging car and extends into a coal feeding chute corresponding to the coal feeding port, through holes for the temperature measuring device to enter and exit are arranged on the side of the coal feeding chute , and small freely openable and closable bodies are arranged above the through holes.
- 3. The method for detecting the blockage of the coal feeding port of the coke oven as claimed in claim 1 or 2, wherein the temperature measuring device is an infrared temperature measuring instrument which is arranged in a stainless steel tube, the lower part of the end of the stainless steel tube is provided with a hole, so that the direction of a temperature measuring head of the infrared temperature measuring instrument is downward, and the position of the hole of the stainless steel tube is aligned with the coal feeding port of the carbonization chamber.
- 4. The method for detecting the blockage of the coal charging port of the coke oven as claimed in claim 3, wherein the diameter of the rear end of the stainless steel tube is matched with the diameter of the end part of the piston rod of the driving oil cylinder and is connected with the end part of the piston rod of the driving oil cylinder, a hole is formed in the position close to the tail part of the stainless steel tube, a conducting wire penetrates through the hole in the tail part of the stainless steel tube and is connected with an infrared thermometer, and the driving oil cylinder is installed on a fixed frame of a coal charging car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072986.9A CN108117875B (en) | 2016-11-29 | 2016-11-29 | Method for detecting blockage of coal feeding port of coke ovens |
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| CN201611072986.9A CN108117875B (en) | 2016-11-29 | 2016-11-29 | Method for detecting blockage of coal feeding port of coke ovens |
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| CN108117875A CN108117875A (en) | 2018-06-05 |
| CN108117875B true CN108117875B (en) | 2020-01-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111004636A (en) * | 2019-12-19 | 2020-04-14 | 武汉钢铁有限公司 | Automatic temperature measurement robot for straight movement of coke oven |
| CN111518575B (en) * | 2020-05-22 | 2023-07-28 | 大连华锐重工焦炉车辆设备有限公司 | Shaking feeder with operation fault detection function |
| CN114763478B (en) * | 2021-01-13 | 2023-02-14 | 宝山钢铁股份有限公司 | Cock handle fracture detection device for coke oven heating gas exchange system |
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| CN1064314A (en) * | 1992-04-08 | 1992-09-09 | 冶金工业部钢铁研究总院 | Transport method for concentrate phase coal spray in blast furnace |
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| CN1198464A (en) * | 1997-03-25 | 1998-11-11 | 川崎制铁株式会社 | Coke furnace operation method and device thereof |
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| CN103320150A (en) * | 2013-07-17 | 2013-09-25 | 山西太钢不锈钢股份有限公司 | Coaling method for a coke oven vehicle |
| CN104860689A (en) * | 2015-04-30 | 2015-08-26 | 临涣焦化股份有限公司 | High-temperature fire clay for coke oven and recycling method of fire clay |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3707946B2 (en) * | 1999-02-10 | 2005-10-19 | 関西熱化学株式会社 | Cleaner around temperature measuring duct on coke oven furnace |
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2016
- 2016-11-29 CN CN201611072986.9A patent/CN108117875B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064314A (en) * | 1992-04-08 | 1992-09-09 | 冶金工业部钢铁研究总院 | Transport method for concentrate phase coal spray in blast furnace |
| CN2199983Y (en) * | 1994-06-30 | 1995-06-07 | 鲍立威 | Travelling automatic temp. measuring device for coke oven flue |
| CN1198464A (en) * | 1997-03-25 | 1998-11-11 | 川崎制铁株式会社 | Coke furnace operation method and device thereof |
| CN101434844A (en) * | 2008-12-15 | 2009-05-20 | 芜湖新兴铸管有限责任公司 | Foal feeding amount control system for coke oven coal feeding cart |
| CN103320150A (en) * | 2013-07-17 | 2013-09-25 | 山西太钢不锈钢股份有限公司 | Coaling method for a coke oven vehicle |
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| CN108117875A (en) | 2018-06-05 |
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