CN110066664B - Maintenance method for smoke emission of small burner of 7.63-meter coke oven - Google Patents
Maintenance method for smoke emission of small burner of 7.63-meter coke oven Download PDFInfo
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- CN110066664B CN110066664B CN201810060161.8A CN201810060161A CN110066664B CN 110066664 B CN110066664 B CN 110066664B CN 201810060161 A CN201810060161 A CN 201810060161A CN 110066664 B CN110066664 B CN 110066664B
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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
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, walls
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Abstract
A maintenance method for the smoke emission of a small burner of a 7.63-meter coke oven is characterized by comprising the following steps: a. cutting a dismantling machine, a small protection plate on the side surface of a coke side furnace top small furnace head, b dismantling the coke side furnace top small furnace head of the machine, c processing clay bricks on the 4 th to 10 th layers to form a grouting hole, d, dismantling a fiber rope on the upper part of a furnace door frame, blowing and cleaning, filling a ceramic fiber rope, and e, building the coke side small furnace head. The maintenance method for smoke emission of the small burner of the 7.63-meter coke oven has the advantages of rebuilding the whole coke oven head position sealing system, having powerful measures, strong operability and obvious effect, eliminating the smoke emission phenomenon of the small burner, meeting the production and environmental protection requirements, being accurate in grouting material and reducing the maintenance engineering cost.
Description
Technical Field
The invention relates to a coke oven maintenance method, in particular to a maintenance method for smoke emission of a small burner of a 7.63-meter coke oven.
Background
In the production process of a 7.63-meter coke oven throughout the year, the expansion effect of refractory bricks and the external force effect of machinery such as a coke pusher and the like easily cause the problems of loosening of small oven end bricks of the coke oven, damage to refractory fiber ropes on the upper part of an oven door frame and the like. The damage of the coke oven components directly causes the reduction of the sealing performance of the oven head of the oven body of the coke oven, and the smoke generation condition of the small oven head occurs in the production process, thereby seriously influencing the production operation and causing the environmental pollution.
Therefore, the small head of the coke oven body which generates smoke needs to be repaired.
Disclosure of Invention
The invention aims to provide a maintenance method for smoke emission of a small burner of a 7.63-meter coke oven for rebuilding the position seal of the head of the whole coke oven.
In order to achieve the purpose, the technical solution of the invention is as follows:
a maintenance method for the smoke emission of a small burner of a 7.63-meter coke oven is characterized by comprising the following steps:
a. small protective plate for side surface of small furnace end on top of coke side of cutting demolition machine
Fixing a small protection plate on a furnace column by adopting an iron wire, loosening a top bar bolt of the small protection plate, cutting the small protection plate by adopting a cutting tool near the furnace column, wherein the furnace column cannot be damaged during cutting, and beveling is performed on a cutting surface after the cutting is finished, so that later-stage welding is facilitated;
b. small furnace end for dismantling coke side furnace top of machine
Removing refractory bricks of the small furnace head at the top of the furnace after cutting and removing the railings, the auxiliary plates, the side surface of the small furnace head at the machine side and the side surface of the small furnace head at the coke side, removing the pot bricks at the machine side and the coke side, removing clay bricks at the 4 th to 10 th layers, and cleaning side walls and a 3 rd layer refractory brick masonry;
c. processing clay bricks of 4 th to 10 th layers to form grouting holes
Processing clay bricks of the 4 th to 10 th layers, and beveling the ends of the clay bricks by a cutter with the length of 50mm; processing 4 clay bricks on each layer to form two grouting holes which are adjacently arranged, so that the clay bricks on the 4 th to 10 th layers are the same as those on the 10 th layer, and finally forming the grouting holes communicated from the 4 th layer to the furnace top;
d. dismantling fiber rope on the upper part of the furnace door frame, blowing and cleaning and filling ceramic fiber rope
Dismantling the ceramic fiber rope between the upper part of the furnace door frame and the thrust plate of the furnace end, blowing and cleaning, pouring grouting material from a grouting hole by using a grouting funnel to prevent slurry from splashing, and then dipping the ceramic fiber rope into mortar to fill the mortar tightly;
e. machine coke side small burner masonry
Building a 4 th-10 th layer of clay bricks, wherein the clay bricks need to be built with full mortar, and grouting holes are vertical and have no wrong platforms; the clay brick masonry has a smooth surface, is not wrong, ensures that a small protection plate of the furnace end is installed smoothly, then performs grouting on a grouting hole of the small furnace end, and finally builds 11 th-layer refractory bricks and surface pot bricks on the machine side and the coke side to finish the repair of smoke emission of the small furnace end.
The maintenance method for the smoke emission of the small burner of the coke oven with the diameter of 7.63 meters can be further realized by adopting the following technical measures.
In the method, the grouting material is prepared by mixing clay fire clay and 2% water glass into a flowing state.
The foregoing method, wherein the water glass specification is class i five or 75 °.
The method as described above, wherein the specific gravity of the grouting material is 1.5 to 1.7.
In the method, when the grouting holes are grouted, each grouting hole is grouted for three times, and the time interval is 1-1.5 h.
In the method, when the grouting hole is grouted, the grouting amount of the grouting hole at the furnace head part position of 1 st to 2 nd times is 2 barrels per time, and 6 liters of grouting material is used in each barrel.
After the technical scheme is adopted, the maintenance method for the small burner smoking of the 7.63-meter coke oven has the following advantages:
1. the whole coke oven head position sealing system is rebuilt, the measures are powerful, the operability is strong, and the effect is obvious;
2. the smoke emission phenomenon of the small furnace head is eliminated, and the production and environmental protection requirements are met;
3. the grouting material is accurate in material, and the maintenance engineering cost is reduced.
Drawings
FIG. 1 is a schematic view of a coke side port structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a furnace head structure of a small furnace side of the embodiment of the invention;
FIG. 3 is a plan view of the focal side layer 10 of an embodiment of the present invention;
FIG. 4 is a machine side layer 10 plan view of an embodiment of the invention;
fig. 5 is a schematic view of a sealing structure between the upper portion of the furnace door frame and the furnace end thrust plate according to the embodiment of the present invention.
In the figure: the coke oven comprises a coke side small oven head 1, a coke side small protection plate 2, a grouting hole 3, a coal feeding hole 4, a layer 3 of 5 refractory bricks, a layer 10 of 6 refractory bricks, a layer 11 of 7 refractory bricks, a machine side small oven head 8, an ascending pipe 9, a carbonization chamber 10, a carbonization chamber 11 and a top brick, a sliding layer 12, a furnace top semi-silica brick 13, a furnace end thrust plate 14, a ceramic fiber rope 15, a sealing device 16 and a furnace door frame 17.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The invention discloses a maintenance method for smoke emission of a small burner of a 7.63-meter coke oven, which comprises the following steps of:
referring to fig. 1 and 2, fig. 1 is a schematic view of a coke side small furnace head structure according to an embodiment of the present invention, and fig. 2 is a schematic view of a machine side small furnace head structure according to an embodiment of the present invention. As shown in the figure, the coke side small burner 2 is arranged at the outer side of the coal feeding hole 4, the inner side of the coke side small burner 2 is lined with small burner refractory bricks, and a grouting hole 3 is arranged in the range of the 3 rd layer refractory brick to the 11 th layer refractory brick; also outside the ascending pipe 9 of the small burner 2 at the machine side, the small burner firebrick is lined at the inner side of the small burner 2 at the coke side, and the grouting hole 3 is arranged in the range of the firebrick at the 3 rd layer to the firebrick at the 11 th layer.
a. Small side face protection plate for small furnace end on coke side furnace top of cutting and dismantling machine
Firstly, fixing the small protection plate on the furnace column by adopting an iron wire, then loosening the ejector bolt of the small protection plate, and cutting the small protection plate by adopting a tool near the furnace column. Because the small protective plate is thicker, the furnace column cannot be damaged during cutting. And after cutting, beveling the cut surface to facilitate later welding.
b. Small furnace end for dismantling coke side furnace top of machine
And removing the refractory bricks of the small furnace head on the furnace top after cutting and removing the balustrade on the surface of the furnace top, the auxiliary plate and the small protection plate on the side surface of the small furnace head on the machine coke side. The machine coke side quarry bricks are removed firstly, and then the clay bricks of the 4 th to 10 th layers (No. 113 and No. 114) are removed. Then the side wall and the 3 rd layer of refractory brick masonry are cleaned.
c. Processing No. 114 brick to form grouting hole
Fig. 3 is a plan view of the focal side layer 10 of the embodiment of the present invention, and fig. 4 is a plan view of the machine side layer 10 of the embodiment of the present invention. Processing the clay bricks of the 4 th to 10 th layers (No. 113 and No. 114), beveling the end and cutting the end to 50mm, processing 4 clay bricks of No. 114 on each layer to form 2 grouting holes, and the following figures show that. And the 4 th layer to the 10 th layer are the same as the 10 th layer, and finally, grouting holes from the 4 th layer to the furnace top are formed, so that later grouting is facilitated.
d. Dismantling fiber rope on the upper part of the furnace door frame, blowing and cleaning and filling ceramic fiber rope
Fig. 5 is a schematic view of a sealing structure between the upper portion of the furnace door frame and the furnace end thrust plate according to the embodiment of the present invention. And (3) dismantling the ceramic fiber rope between the upper part of the furnace door frame and the furnace end thrust plate, blowing, cleaning, grouting, and then dipping the ceramic fiber rope in mortar to fill the mortar compactly. Because the part is horizontal, a special tool is made to perform grouting. In addition, the consistency of the grouting material is a little greater. The grouting material adopts clay fire clay (KC-W), and 2% water glass (five grades I or 75 degree) is added, and the mixture is adjusted to flow state (the specific gravity is 1.5-1.7 is suitable).
e. Machine coke side small burner masonry
No. 4-10 layers 113 and 114 of clay bricks are built firstly. When building, the mortar must be full, the grouting holes are vertical, and the slab staggering is avoided. The brickwork outward appearance is level and smooth, and the installation of the little protection shield of furnace end is level and smooth not wrong platform is guaranteed. And then grouting the grouting holes of the small furnace ends, and finally building 11 th layers of refractory bricks and surface cylinder bricks to finish the repair of the small furnace ends smoking.
The invention relates to a grouting material used in a maintenance method for the smoke emission of a small burner of a 7.63-meter coke oven, which comprises the following components: the top grouting is made of clay fire clay (KC-W) and 2% water glass (five-grade I or 75 degree), and is made into flowing state (the specific gravity is 1.2-1.6). The pouring of the slurry into the grouting hole must use a grouting funnel to prevent the slurry from splashing. Grouting is carried out in three times at each grouting hole, and the time interval of each grouting hole is 1-1.5 h. The 1 st to 2 nd furnace head grouting holes are 2 barrels (about 6 liters/barrel) at a time.
The invention has substantive characteristics and obvious technical progress, the maintenance method for the smoke emission of the small burner of the 7.63-meter coke oven of the invention removes the small burner small protective plate, refractory bricks and the like of the coke oven body, redesigns the grout filling port of the small burner part, then re-builds the small burner refractory bricks and welds the small protective plate, on one hand, the sealing performance of the coke oven body burner is improved, the smoke emission is avoided, and the environmental protection requirement is met; on the other hand, the redesigned grouting opening can be used for grouting in the daily production process, so that the production requirement is met.
The maintenance method for the smoke emission of the small burner of the coke oven with the length of 7.63 meters is used in maintenance engineering projects of the small burner of the coke oven with the length of 7.63 meters made of sand steel and horse steel, the sealing performance of the whole coke oven burner part is guaranteed after construction, smoke is not emitted any more, the effect is obvious, and the method is determined by relevant departments and units.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (6)
1. A maintenance method for the smoke emission of a small burner of a 7.63-meter coke oven is characterized by comprising the following steps:
a. small protective plate for side surface of small furnace end on top of coke side of cutting demolition machine
Fixing a small protection plate on a furnace column by adopting an iron wire, loosening a top bar bolt of the small protection plate, cutting the small protection plate by adopting a cutting tool near the furnace column, wherein the furnace column cannot be damaged during cutting, and beveling is performed on a cutting surface after the cutting is finished, so that later-stage welding is facilitated;
b. small furnace end for dismantling coke side furnace top of machine
Removing refractory bricks of the small furnace head at the top of the furnace after cutting and removing the railings, the auxiliary plates, the side surface of the small furnace head at the machine side and the side surface of the small furnace head at the coke side, removing the pot bricks at the machine side and the coke side, removing clay bricks at the 4 th to 10 th layers, and cleaning side walls and a 3 rd layer refractory brick masonry;
c. processing clay bricks of 4 th to 10 th layers to form grouting holes
Processing clay bricks of the 4 th to 10 th layers, and beveling the ends of the clay bricks by a cutter with the length of 50mm; processing 4 clay bricks on each layer to form two grouting holes which are adjacently arranged, so that the clay bricks on the 4 th to 10 th layers are the same as those on the 10 th layer, and finally forming the grouting holes communicated from the 4 th layer to the furnace top;
d. dismantling fiber rope on the upper part of the furnace door frame, blowing and cleaning and filling ceramic fiber rope
Dismantling the ceramic fiber rope between the upper part of the furnace door frame and the thrust plate of the furnace end, blowing and cleaning, pouring grouting material from a grouting hole by using a grouting funnel to prevent slurry from splashing, and then dipping the ceramic fiber rope into mortar to fill the mortar tightly;
e. machine coke side small burner masonry
Building a 4 th-10 th layer of clay bricks, wherein the clay bricks need to be built with full mortar, and grouting holes are vertical and have no wrong platforms; the clay brick masonry has a smooth surface, is not wrong, ensures that a small protection plate of the furnace end is installed smoothly, then performs grouting on a grouting hole of the small furnace end, and finally builds 11 th-layer refractory bricks and surface pot bricks on the machine side and the coke side to finish the repair of smoke emission of the small furnace end.
2. The method for maintaining the smoke emission of the small burner of the 7.63-meter coke oven as claimed in claim 1, wherein the grouting material is prepared into a flowing state by adopting clay fire clay and 2% water glass.
3. The method of claim 2, wherein the water glass specification is class i or 75 ° for five.
4. The method for maintaining the smoke emission of the small burner of the 7.63-meter coke oven as claimed in claim 1, wherein the grouting material is prepared from clay fire clay and 2% of water glass, and is prepared into a flowing state by water, and the specific gravity is 1.5-1.7.
5. The method for maintaining smoke from a small burner of a coke oven with the size of 7.63 m as claimed in claim 1, wherein the grouting holes are grouted for three times at intervals of 1-1.5 h.
6. The method for maintaining smoke from a small burner of a 7.63-meter coke oven as claimed in claim 1, wherein the grouting amount of the grouting hole at the head part of the 1 st to 2 nd times is 2 barrels per time and 6 liters per barrel of grouting material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810060161.8A CN110066664B (en) | 2018-01-22 | 2018-01-22 | Maintenance method for smoke emission of small burner of 7.63-meter coke oven |
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| CN201810060161.8A CN110066664B (en) | 2018-01-22 | 2018-01-22 | Maintenance method for smoke emission of small burner of 7.63-meter coke oven |
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| CN110066664A CN110066664A (en) | 2019-07-30 |
| CN110066664B true CN110066664B (en) | 2021-01-19 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113293011B (en) * | 2021-05-31 | 2022-09-02 | 马鞍山钢铁股份有限公司 | Coke oven head sealing masonry structure and masonry method thereof |
| CN115353894B (en) * | 2022-07-29 | 2025-01-07 | 中冶焦耐(大连)工程技术有限公司 | Coke oven top structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3474058D1 (en) * | 1984-01-12 | 1988-10-20 | Giuseppe Carrara | Procedure and furnace to incinerate materialswithout producing smoke |
| CN102146294A (en) * | 2011-02-23 | 2011-08-10 | 中冶焦耐(大连)工程技术有限公司 | Method for increasing air tightness of coke oven top and oven top structure |
| CN206544995U (en) * | 2017-03-16 | 2017-10-10 | 石家庄钢铁有限责任公司 | A kind of coke oven coke side smoke gas collecting apparatus |
| CN107286964A (en) * | 2016-04-05 | 2017-10-24 | 五冶集团上海有限公司 | A kind of job platform repaired for coke oven end |
| CN106010588B (en) * | 2016-05-23 | 2019-06-04 | 内蒙古包钢钢联股份有限公司 | The firedoor frame of large capacity coke oven is smoldered processing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504837B (en) * | 2011-10-28 | 2013-09-18 | 马钢(集团)控股有限公司 | Synchronous cutting-off and unroofing repair method for coke side oven head of large-scale coke oven machine |
-
2018
- 2018-01-22 CN CN201810060161.8A patent/CN110066664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3474058D1 (en) * | 1984-01-12 | 1988-10-20 | Giuseppe Carrara | Procedure and furnace to incinerate materialswithout producing smoke |
| CN102146294A (en) * | 2011-02-23 | 2011-08-10 | 中冶焦耐(大连)工程技术有限公司 | Method for increasing air tightness of coke oven top and oven top structure |
| CN107286964A (en) * | 2016-04-05 | 2017-10-24 | 五冶集团上海有限公司 | A kind of job platform repaired for coke oven end |
| CN106010588B (en) * | 2016-05-23 | 2019-06-04 | 内蒙古包钢钢联股份有限公司 | The firedoor frame of large capacity coke oven is smoldered processing method |
| CN206544995U (en) * | 2017-03-16 | 2017-10-10 | 石家庄钢铁有限责任公司 | A kind of coke oven coke side smoke gas collecting apparatus |
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