CN112413636A - Method for preventing coal powder combustion furnace from being exploded - Google Patents
Method for preventing coal powder combustion furnace from being exploded Download PDFInfo
- Publication number
- CN112413636A CN112413636A CN202011284332.9A CN202011284332A CN112413636A CN 112413636 A CN112413636 A CN 112413636A CN 202011284332 A CN202011284332 A CN 202011284332A CN 112413636 A CN112413636 A CN 112413636A
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- grate
- coal
- coal cinder
- upper baffle
- 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
Links
- 239000003245 coal Substances 0.000 title claims abstract description 60
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 title description 5
- 239000003818 cinder Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 239000012634 fragment Substances 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a method for preventing a pulverized coal combustion furnace from being exploded, wherein a grate made of steel bars is additionally arranged between a lower ash pipe and a water seal of the pulverized coal combustion furnace, a movable upper baffle plate is arranged above the grate, and a movable lower baffle plate is arranged below the grate; during production, the upper baffle plate is pulled out and the lower baffle plate is pushed into the lower ash pipe, so that the coal slag falls on the fire grate and falls on the lower baffle plate as fragments; when the coal cinder is cleaned, pushing the upper baffle plate, filing the large blocks on the fire grate by the upper baffle plate, blocking a coal cinder falling channel, pulling the lower baffle plate open, and cleaning the cooled small coal cinder in a water seal; after the coal cinder is cleaned, the lower baffle plate is pushed in, the upper baffle plate is pulled out, and the original position is recovered. When the coal cinder is normally produced and cleaned, the coal cinder falling channel is separated by the lower baffle plate or the upper baffle plate respectively, so that the high-temperature coal cinder is prevented from accidentally falling into a water seal, operators are prevented from being scalded by splashing hot water and hot cinder of the fryer, and a safety protection effect is achieved.
Description
Technical Field
The invention relates to a ceramic tile production process, in particular to the field of pulverized coal combustion furnaces of spray drying towers.
Background
In the process of ceramic production, the ground slurry is dried to form powder particles, and the slurry is dried by a spray tower in the process. The hot air required by the spray tower for drying is usually provided by fire coal of a grate-fired furnace, a coal water slurry furnace and a pulverized coal combustion furnace. During the combustion process of the pulverized coal combustion furnace, the coal slag can be adhered to the wall of the pulverized coal combustion furnace and the wall of the hot blast pipe. When the coal slag is slagging to a certain lumpiness, the coal slag can fall into a water seal below the pulverized coal combustion furnace. Because the temperature of the coal cinder is nearly thousands of degrees and the adhesion is not very tight, after the large coal cinder falls into the water seal, water is rapidly gasified, so that water vapor, water and coal cinder are splashed all around, hot water hot slag splashes all around to scald operators, the water vapor and water splashed into the combustion furnace can also cause the temperature in the combustion furnace to be rapidly reduced, and all the conditions can cause safety accidents, and the condition is called as a frying furnace in the application.
Disclosure of Invention
The invention aims to provide a method for preventing a pulverized coal combustion furnace from being exploded, which can effectively prevent coal slag from falling into a water seal to cause the explosion of the furnace.
The technical scheme adopted by the invention is as follows: a method for preventing a pulverized coal combustion furnace from being exploded is characterized in that: a grate made of steel bars is additionally arranged between a lower ash pipe and a water seal of the pulverized coal combustion furnace, a movable upper baffle plate is arranged above the grate, and a movable lower baffle plate is arranged below the grate; during production, the upper baffle plate is pulled out and the lower baffle plate is pushed into the lower ash pipe, so that the coal slag falls on the fire grate and falls on the lower baffle plate as fragments; when the coal cinder is cleaned, pushing the upper baffle plate, filing the large blocks on the fire grate by the upper baffle plate, blocking a coal cinder falling channel, pulling the lower baffle plate open, and cleaning the cooled small coal cinder in a water seal; after the coal cinder is cleaned, the lower baffle plate is pushed in, the upper baffle plate is pulled out, and the original position is recovered.
The height between the lower baffle and the grate is 100-300 mm, and the height between the upper baffle and the grate is 50-60 mm.
When the coal cinder is normally produced and cleaned, the coal cinder falling channel is separated by the lower baffle plate or the upper baffle plate respectively, so that the high-temperature coal cinder is prevented from accidentally falling into a water seal, operators are prevented from being scalded by splashing hot water and hot cinder of the fryer, and a safety protection effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention in its normal production configuration;
FIG. 2 is a schematic structural diagram of the present invention in cleaning coal cinder;
in the figure, 1 is a fire grate, 2 is an upper baffle, 3 is a lower baffle, 4 is a water seal, 5 is a lower ash pipe, and 6 is a pulverized coal combustion furnace.
Detailed Description
For a better understanding and an enabling description of the present invention, reference is made to the following examples which are set forth to illustrate, but are not to be construed to limit the present invention.
As can be seen from fig. 1, the method for preventing the coal powder combustion furnace from exploding is specifically as follows: the invention adds a fire grate made of steel bars between the ash discharge pipe and the water seal of the existing coal powder combustion furnace, and a movable baffle is arranged above and below the fire grate; the upper baffle and the lower baffle are made of common heat-resistant materials. The height difference between the lower baffle and the grate is 100-300 mm, and a cinder storage cooling space is formed between the lower baffle and the grate; the height difference between the upper baffle plate and the grate is 50-60 mm, so that the grate is convenient to push in.
During normal production, the upper baffle plate is pulled out and the lower baffle plate is pushed into the ash discharging pipe, so that coal cinder falls on the lower baffle plate 3 to be stored and cooled, and large coal cinder can be broken into small blocks after passing through the fire grate 1, as shown in figure 1. When the coal cinder is cleaned, the upper baffle plate 2 is pushed into the lower ash pipe to block a coal cinder falling channel and block the coal cinder falling during cinder cleaning, so that the coal cinder is prevented from directly falling into the water seal 4 to generate a blast furnace, which affects production and safety, the upper baffle plate crushes large coal cinder on a grate, then the lower baffle plate is pulled open, and the cooled small coal cinder falls into the water seal, as shown in figure 2; after the coal cinder is cleaned, the lower baffle plate is pushed in, the upper baffle plate is pulled out, and the original position is restored, as shown in figure 1.
When the coal cinder is normally produced and cleaned, the coal cinder falling channel is separated by the lower baffle plate or the upper baffle plate respectively, so that the high-temperature coal cinder is prevented from accidentally falling into a water seal, operators are prevented from being scalded by splashing hot water and hot cinder of the fryer, and a safety protection effect is achieved.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (2)
1. A method for preventing a pulverized coal combustion furnace from being exploded is characterized in that: a grate made of steel bars is additionally arranged between a lower ash pipe and a water seal of the pulverized coal combustion furnace, a movable upper baffle plate is arranged above the grate, and a movable lower baffle plate is arranged below the grate; during production, the upper baffle plate is pulled out and the lower baffle plate is pushed into the lower ash pipe, so that the coal slag falls on the fire grate and falls on the lower baffle plate as fragments; when the coal cinder is cleaned, pushing the upper baffle plate, filing the large blocks on the fire grate by the upper baffle plate, blocking a coal cinder falling channel, pulling the lower baffle plate open, and cleaning the cooled small coal cinder in a water seal; after the coal cinder is cleaned, the lower baffle plate is pushed in, the upper baffle plate is pulled out, and the original position is recovered.
2. A method of preventing a pulverized coal-fired furnace from frying as set forth in claim 1, wherein: the height between the lower baffle and the grate is 100-300 mm, and the height between the upper baffle and the grate is 50-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284332.9A CN112413636A (en) | 2020-11-17 | 2020-11-17 | Method for preventing coal powder combustion furnace from being exploded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284332.9A CN112413636A (en) | 2020-11-17 | 2020-11-17 | Method for preventing coal powder combustion furnace from being exploded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112413636A true CN112413636A (en) | 2021-02-26 |
Family
ID=74832644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011284332.9A Pending CN112413636A (en) | 2020-11-17 | 2020-11-17 | Method for preventing coal powder combustion furnace from being exploded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112413636A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2267520A1 (en) * | 1974-04-15 | 1975-11-07 | Zink Co John | |
| CN2782687Y (en) * | 2005-05-23 | 2006-05-24 | 河南省耕生高温材料有限公司 | Direct combustion type gas generation furnace |
| CN2911453Y (en) * | 2006-04-25 | 2007-06-13 | 郝润峰 | Two-layer enclosed cold slag bucket |
| CN101008492A (en) * | 2006-01-24 | 2007-08-01 | 北京国电富通科技发展有限责任公司 | Dry slag-draining device of coal boiler |
| CN200991632Y (en) * | 2006-12-28 | 2007-12-19 | 王明义 | Smoke-return type sprinkling dust-control apparatus |
| CN105650656A (en) * | 2016-03-24 | 2016-06-08 | 中国电力工程顾问集团西北电力设计院有限公司 | Boiler bottom structure of submerged scraper conveyor in thermal power plant |
| CN105953247A (en) * | 2016-05-30 | 2016-09-21 | 大唐贵州发耳发电有限公司 | Boiler furnace slag recycling system |
| CN207279658U (en) * | 2017-09-30 | 2018-04-27 | 中节环立为（武汉）能源技术有限公司 | A kind of hydrolock dragveyer coke dropping buffer unit |
| CN208546662U (en) * | 2018-04-03 | 2019-02-26 | 山西兰花科技创业股份有限公司 | Wet type gas main dust collector and dedusting gas main |
-
2020
- 2020-11-17 CN CN202011284332.9A patent/CN112413636A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2267520A1 (en) * | 1974-04-15 | 1975-11-07 | Zink Co John | |
| CN2782687Y (en) * | 2005-05-23 | 2006-05-24 | 河南省耕生高温材料有限公司 | Direct combustion type gas generation furnace |
| CN101008492A (en) * | 2006-01-24 | 2007-08-01 | 北京国电富通科技发展有限责任公司 | Dry slag-draining device of coal boiler |
| CN2911453Y (en) * | 2006-04-25 | 2007-06-13 | 郝润峰 | Two-layer enclosed cold slag bucket |
| CN200991632Y (en) * | 2006-12-28 | 2007-12-19 | 王明义 | Smoke-return type sprinkling dust-control apparatus |
| CN105650656A (en) * | 2016-03-24 | 2016-06-08 | 中国电力工程顾问集团西北电力设计院有限公司 | Boiler bottom structure of submerged scraper conveyor in thermal power plant |
| CN105953247A (en) * | 2016-05-30 | 2016-09-21 | 大唐贵州发耳发电有限公司 | Boiler furnace slag recycling system |
| CN207279658U (en) * | 2017-09-30 | 2018-04-27 | 中节环立为（武汉）能源技术有限公司 | A kind of hydrolock dragveyer coke dropping buffer unit |
| CN208546662U (en) * | 2018-04-03 | 2019-02-26 | 山西兰花科技创业股份有限公司 | Wet type gas main dust collector and dedusting gas main |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210226 |
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| WD01 | Invention patent application deemed withdrawn after publication |