CN2769763Y - Coal-firing hot-air stove - Google Patents
Coal-firing hot-air stove Download PDFInfo
- Publication number
- CN2769763Y CN2769763Y CN 200520089485 CN200520089485U CN2769763Y CN 2769763 Y CN2769763 Y CN 2769763Y CN 200520089485 CN200520089485 CN 200520089485 CN 200520089485 U CN200520089485 U CN 200520089485U CN 2769763 Y CN2769763 Y CN 2769763Y
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- CN
- China
- Prior art keywords
- heat exchanger
- flue gas
- temperature flue
- tube
- stove
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a coal-firing hot-air stove, which comprises a chain stove and a shell-and-tube heat exchanger, wherein the shell-and-tube heat exchanger is arranged above the chain stove, and the heat exchanger is provided with a tube pass and a shell pass, wherein the tube pass of the heat exchanger is provided with a high temperature flue gas inlet and a high temperature flue gas outlet, and the shell pass is provided with a normal temperature air inlet and a hot air outlet. The back of a stove chamber of the chain stove is provided with the high temperature flue gas outlet which is connected with the high temperature flue gas inlet of the tube pass of the heat exchanger; the flue gas outlet of the tube pass of the heat exchanger is communicated with the atmosphere. The utility model is characterized in that at the position of the high-temperature flue gas inlet of the tube pass of the heat exchanger, a long casing tube is arranged; the outer wall of the long casing tube is poured with a refractory concrete layer. The utility model can effectively prevent the high-temperature flue gas of the tube pass the heat exchanger burning the tube pass out and can also save large amounts of non-rust steel simultaneously; the external environment of a hot air stove house is purified when the heat efficiency of the heat exchanger is ensured, which accords with the requirement of the environmental protection.
Description
(1) technical field
The utility model relates to a kind of drying plant, particularly relates to a kind of coal-fired hot-blast stove.
(2) background technology
In the domestic existing coal-fired hot-blast stove technology, coal-fired hot-blast stove and three groups of tubular heat exchangers connect to form, and hot-blast stove and heat exchanger are on sustained height, and the floor space of this hot-blast stove is bigger.In addition, the high-temperature flue gas that comes out from burner hearth is the tube side that flows through heat exchanger, and the shell side that normal temperature air flows through heat exchanger is heated.Because first group of heat exchanger at first contacts high-temperature flue gas, must make one section tubular heat exchanger with the material of resistant to elevated temperatures stainless steel tube, prevents to burn out heat exchanger tube.
(3) summary of the invention
The purpose of this utility model is to provide a kind of high-temperature flue gas of heat exchanger tube side that prevents to burn out the coal-fired hot-blast stove of tube side.
The technical scheme that adopts is:
A kind of coal-fired hot-blast stove comprises chain furnace and tubular heat exchanger, and tubular heat exchanger is arranged on the top of chain furnace, and heat exchanger has tube side and shell side, and the tube side of heat exchanger has high-temperature flue gas inlet and flue gas outlet; Shell side has normal temperature air inlet and hot-blast outlet, has the high-temperature flue gas outlet to be connected with the high-temperature flue inlet of heat exchanger tube side behind the burner hearth of chain furnace.The flue gas outlet of exchanging air tube side leads to atmosphere, and its design feature is the high-temperature flue gas porch at the heat exchanger tube side, is provided with long sleeve pipe, and the outside of long sleeve pipe is equiped with protective layer.
The rear portion that above-mentioned heat exchanger below is positioned at chain furnace is provided with the sootfall chamber, and the sidewall of sootfall chamber is provided with shoot door.
The protective layer of above-mentioned long jacket exterior is the refractory concrete layer of cast.
The utility model can prevent effectively that the high-temperature flue gas of heat exchanger tube side from burning out tube side, also can save a large amount of stainless steels simultaneously, when guaranteeing exchanger heat efficient, has purified hot-blast stove room external environment condition, compliance with environmental protection requirements.
(4) description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
(5) specific embodiment
See also Fig. 1, a kind of coal-fired hot-blast stove of the present utility model is to be connected and composed up and down by chain furnace 1 and tubular heat exchanger 2, and heat exchanger 2 is close to above chain furnace 1.Chain furnace 1 has high-temperature flue gas outlet 3; Tubular heat exchanger 2 has tube side and shell side, tube side has high-temperature flue gas inlet 4 and flue gas outlet 5, shell side has normal temperature air inlet 6 and hot-blast outlet 7, be provided with 200 millimeters long sleeve pipe 11 at tube side high-temperature flue gas 4 places that enter the mouth, on the outer wall of long sleeve pipe 11, be cast with 200 millimeters thick refractory concrete layers 8.
For the high-temperature flue gas that prevents the heat exchanger tube side burns out tube side, the rear portion that is positioned at chain furnace 1 below heat exchanger is provided with sootfall chamber 9, removes dust stratification at any time by shoot door 10, prevents that flue dust is discharged in the outside atmosphere, has purified the environment of outside, hot-blast stove room.
Claims (3)
1, a kind of coal-fired hot-blast stove, comprise chain furnace (1) and tubular heat exchanger (2), tubular heat exchanger (2) is arranged on the top of chain furnace (1), and heat exchanger (2) has tube side and shell side, and the tube side of heat exchanger (2) has high-temperature flue gas inlet (4) and flue gas outlet (5); Shell side has normal temperature air inlet (6) and hot-blast outlet (7); there is high-temperature flue gas outlet (3) to be connected behind the burner hearth of chain furnace (1) with the high-temperature flue gas inlet (4) of heat exchanger tube side; the flue gas outlet of exchanging air tube side (5) leads to atmosphere; it is characterized in that: the high-temperature flue gas inlet (4) at the heat exchanger tube side is located; be provided with long sleeve pipe (11), the outer wall of long sleeve pipe (11) is equiped with protective layer (8).
2, a kind of coal-fired hot-blast stove according to claim 1 is characterized in that the rear portion that described heat exchanger below is positioned at chain furnace (1) is provided with sootfall chamber (9), and the sidewall of sootfall chamber (9) is provided with shoot door (10).
3, a kind of coal-fired hot-blast stove according to claim 1 is characterized in that the refractory concrete layer of described protective layer (8) for cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089485 CN2769763Y (en) | 2005-02-28 | 2005-02-28 | Coal-firing hot-air stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089485 CN2769763Y (en) | 2005-02-28 | 2005-02-28 | Coal-firing hot-air stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769763Y true CN2769763Y (en) | 2006-04-05 |
Family
ID=36690843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520089485 Expired - Fee Related CN2769763Y (en) | 2005-02-28 | 2005-02-28 | Coal-firing hot-air stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538206A (en) * | 2010-12-24 | 2012-07-04 | 天津新技术产业园区天博科工贸有限公司 | Flame path connecting pipe between coal-fired furnace and heat exchanger |
-
2005
- 2005-02-28 CN CN 200520089485 patent/CN2769763Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538206A (en) * | 2010-12-24 | 2012-07-04 | 天津新技术产业园区天博科工贸有限公司 | Flame path connecting pipe between coal-fired furnace and heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20120228 |