CN111040784A - 7.63m coke oven supplementary heating pipe connecting method - Google Patents
7.63m coke oven supplementary heating pipe connecting method Download PDFInfo
- Publication number
- CN111040784A CN111040784A CN201911214812.5A CN201911214812A CN111040784A CN 111040784 A CN111040784 A CN 111040784A CN 201911214812 A CN201911214812 A CN 201911214812A CN 111040784 A CN111040784 A CN 111040784A
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- CN
- China
- Prior art keywords
- supplementary heating
- steel pipe
- pipe
- vertical flue
- lower spray
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- 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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- 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
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
Abstract
A7.63 m coke oven supplemental heating pipe connecting method is characterized in that a hole is formed in the middle of a plug cover of a lower spray pipe of a vertical flue; extending the supplementary heating steel pipe into the vertical flue lower spray pipe from the opening, and mounting an adjustable limiting ring on the supplementary heating steel pipe extending into the vertical flue lower spray pipe, wherein the adjustable limiting ring is positioned in the vertical flue lower spray pipe; a ceramic fiber pad is used for sealing between the adjustable limiting ring and the blocking cover; adjusting the depth of the supplementary heating steel pipe extending into the vertical flue steel pipe according to the position of the limit ring arranged on the supplementary heating steel pipe; the end of the post-heated steel tubing was connected to a post-heated manifold using a hose. The invention has the advantages of simple structure, convenient connection and disassembly, safety, reliability, no leakage, no ignition, no gas poisoning risk and capability of effectively improving the problems of green coke smoke and large coke pushing current caused by transverse temperature difference.
Description
Technical Field
The invention is applied to the supplementary heating of the vertical flue lower nozzle with horizontal temperature difference when the 7.63m coke oven adopts mixed gas for heating.
Background
The coke oven supplementary heating system is applied to a mixed gas heating system of a compound heat type coke oven, and is a standby heating mode when horizontal fire paths are not sufficient in heating. In the design, only joints of supplementary heating pipes are reserved for 2 flame paths of the furnace end. When the supplementary heating is needed, the soft rubber pipe is used for connecting the supplementary heating pipe joint with the supplementary heating main pipe, and the coke oven gas is sent to the bottom of the furnace end vertical flue for heating the coke oven.
And the lower spray pipes of the transverse vertical flame paths of the transverse middle flame paths are not provided with the joints of the supplementary heating pipes and cannot be connected. In order to meet the heating requirement, the Tai steel is inserted from the lower part of the lower spray pipe of the vertical flue by using a steel pipe and is subjected to supplementary heating by using a soft cloth filling and sealing mode, but the connection is not firm, the problems of separation, ignition, gas leakage and the like of the supplementary pipe and the lower spray pipe are easy to occur, and the Tai steel does not meet the safety and heating requirements.
Disclosure of Invention
The invention provides a method for connecting a supplementary heating pipe with adjustable extension height, which aims to connect coke oven gas of a supplementary heating main pipe to a lower spray pipe of a vertical flame path of a coke oven when the temperature of the horizontal row of the coke oven is uneven, accurately supply heat to the vertical flame path, ensure the uniform temperature of the coke oven and prevent the problems of smoke generation and large coke pushing current of coke generation.
The 7.63m coke oven supplemental heating pipe connecting method comprises the following steps:
1. opening a hole in the middle of a blocking cover of a lower spray pipe of the vertical flue;
2. extending the supplementary heating steel pipe into the vertical flue lower spray pipe from the opening, and mounting an adjustable limiting ring on the supplementary heating steel pipe extending into the vertical flue lower spray pipe, wherein the adjustable limiting ring is positioned in the vertical flue lower spray pipe;
3. a ceramic fiber pad is used for sealing between the adjustable limiting ring and the blocking cover;
4. the supplementary heating steel pipe presses the limiting ring on the blocking cover by means of self weight, and the supplementary heating steel pipe and the blocking cover are sealed through a ceramic fiber pad;
5. adjusting the depth of the supplementary heating steel pipe extending into the vertical flue steel pipe according to the position of the limit ring arranged on the supplementary heating steel pipe;
6. and the tail end of the supplementary heating steel pipe is connected to a supplementary heating main pipe by using a hose, so that accurate heat supply to the fire road is realized.
The invention has the following beneficial effects:
(1) the supplementary heating pipe is reliable in connection, is prevented from being disconnected, does not leak, does not catch fire and has no poisoning risk.
(2) The height of the supplementary heating pipe is adjustable, and the loss of supplementary heating gas caused by the leakage of the heat storage chamber can be avoided.
(3) Simple structure, easy dismounting.
Drawings
Fig. 1 is a schematic diagram of the connection of the present invention.
Detailed Description
The specific implementation process of the Tai steel 7.63m coke oven is as follows:
1. the nozzle block cover 5 under the vertical flue is detached and a through hole with the diameter of 21mm is arranged in the axial direction of the block cover.
2. And (3) using a reinforcing steel bar with the thickness of 8mm and the length of 8m, extending into the lower spray pipe 2 of the vertical flame path, cleaning the brick gas path, ensuring the smoothness of the gas path, and taking out the reinforcing steel bar.
3. Sleeving a limiting ring 3 on a steel pipe 1 with the outer diameter of 20mm, sleeving a ceramic fiber pad 4, adjusting the position of the limiting ring, and locking.
4. The perforated blocking cover 5 is sleeved on the steel pipe 1, one end of the steel pipe 1 extends into the vertical flue lower spray pipe, the other end of the steel pipe 1 is positioned outside the vertical flue lower spray pipe, and the blocking cover 5 and the vertical flue lower spray pipe 2 are screwed tightly.
5. The steel pipe 1 to be positioned outside the lower nozzle of the vertical flue is connected to a main supplementary heating pipe (shown in fig. 1) by using a hose 6.
6. And (4) switching on a gas valve to send the gas into the lower spray pipe of the vertical flue.
7. Observing the combustion condition of gas in the vertical flame path at the flame viewing hole at the top of the coke oven, and adjusting the opening of a gas valve until the flame size is proper.
The steel pipe 1 in this embodiment is a supplementary heating pipe. The supplementary heating pipe is connected with the supplementary heating main pipe through a hose 6.
Claims (1)
- The 1.7.63m coke oven supplemental heating pipe connecting method is characterized by comprising the following steps:(1) opening a hole in the middle of a blocking cover of a lower spray pipe of the vertical flue;(2) extending the supplementary heating steel pipe into the vertical flue lower spray pipe from the opening, and mounting an adjustable limiting ring on the supplementary heating steel pipe extending into the vertical flue lower spray pipe, wherein the adjustable limiting ring is positioned in the vertical flue lower spray pipe;(3) a ceramic fiber pad is arranged between the adjustable limiting ring and the blocking cover;(4) the supplementary heating steel pipe presses the limiting ring on the blocking cover by means of self weight, and the supplementary heating steel pipe and the blocking cover are sealed through a ceramic fiber pad;(5) adjusting the depth of the supplementary heating steel pipe extending into the vertical flue steel pipe according to the position of the limit ring arranged on the supplementary heating steel pipe;(6) and the tail end of the supplementary heating steel pipe is connected to a supplementary heating main pipe by using a hose, so that accurate heat supply to the fire road is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214812.5A CN111040784A (en) | 2019-12-02 | 2019-12-02 | 7.63m coke oven supplementary heating pipe connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214812.5A CN111040784A (en) | 2019-12-02 | 2019-12-02 | 7.63m coke oven supplementary heating pipe connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111040784A true CN111040784A (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911214812.5A Pending CN111040784A (en) | 2019-12-02 | 2019-12-02 | 7.63m coke oven supplementary heating pipe connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111040784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718731A (en) * | 2020-07-07 | 2020-09-29 | 新疆八一钢铁股份有限公司 | Vertical flue guniting method for coke oven combustion chamber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2050587A (en) * | 1978-07-07 | 1981-01-07 | Otto & Co Gmbh Dr C | Manipulators for insert tubes for rich gas burners in heating flues of coke ovens |
| CN201241072Y (en) * | 2008-05-12 | 2009-05-20 | 福建三钢闽光股份有限公司 | Vertical fire channel coke oven gas additional heating apparatus of coke oven combustion chamber |
| CN101979464A (en) * | 2010-11-15 | 2011-02-23 | 中冶焦耐(大连)工程技术有限公司 | Coke oven burner double-flue supplemental heating method |
| CN208791549U (en) * | 2018-08-06 | 2019-04-26 | 鞍钢股份有限公司 | A kind of coke oven auxiliary heating system |
-
2019
- 2019-12-02 CN CN201911214812.5A patent/CN111040784A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2050587A (en) * | 1978-07-07 | 1981-01-07 | Otto & Co Gmbh Dr C | Manipulators for insert tubes for rich gas burners in heating flues of coke ovens |
| CN201241072Y (en) * | 2008-05-12 | 2009-05-20 | 福建三钢闽光股份有限公司 | Vertical fire channel coke oven gas additional heating apparatus of coke oven combustion chamber |
| CN101979464A (en) * | 2010-11-15 | 2011-02-23 | 中冶焦耐(大连)工程技术有限公司 | Coke oven burner double-flue supplemental heating method |
| CN208791549U (en) * | 2018-08-06 | 2019-04-26 | 鞍钢股份有限公司 | A kind of coke oven auxiliary heating system |
Non-Patent Citations (1)
| Title |
|---|
| В.И.恰斯多罕恩 等: "《工业锅炉热力计算》", 31 December 1981, 第一机械工业部上海工业锅炉研究所 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718731A (en) * | 2020-07-07 | 2020-09-29 | 新疆八一钢铁股份有限公司 | Vertical flue guniting method for coke oven combustion chamber |
| CN111718731B (en) * | 2020-07-07 | 2021-07-06 | 新疆八钢南疆钢铁拜城有限公司 | Vertical flue guniting method for coke oven combustion chamber |
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Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |