CN203980878U - A kind of energy-saving Natural Gas Fueled Tunnel Kiln - Google Patents
A kind of energy-saving Natural Gas Fueled Tunnel Kiln Download PDFInfo
- Publication number
- CN203980878U CN203980878U CN201420266876.6U CN201420266876U CN203980878U CN 203980878 U CN203980878 U CN 203980878U CN 201420266876 U CN201420266876 U CN 201420266876U CN 203980878 U CN203980878 U CN 203980878U
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- China
- Prior art keywords
- natural gas
- kiln
- appendix
- energy
- heat exchanger
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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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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Abstract
The utility model provides a kind of energy-saving Natural Gas Fueled Tunnel Kiln, tunnel cave body 1 and natural gas combustion nozzle 7 have been comprised, it is specifically provided with some heat exchanger tubes 5 in the top in described tunnel cave cooling section kiln, one end of heat exchanger tube 5 is connected with air inlet pipe 3, the other end is connected with appendix 4, described air inlet pipe 3 is passed with outside high pressure positive blower 2 and is connected by the kiln top of cooling section, described appendix 4 is passed on the sidewall that is fixed on tunnel cave high temperature section by kiln top, is provided with the connection corresponding to natural gas combustion nozzle 7 of several isocons 6 on appendix 4.Above-mentioned energy-saving Natural Gas Fueled Tunnel Kiln, simple in structure, when utilizing heat exchanger tube to lower the temperature to cooling section, also increased the combustion rate of natural gas, reduced energy resource consumption, evade the heat waste that traditional water-cooled valve causes, to improving the economic benefit of enterprise and saving national resources and all made contribution.
Description
Technical field
The utility model relates to the tunnel cave in metallurgy industry, especially refer to a kind of energy-saving Natural Gas Fueled Tunnel Kiln.
Background technology
Reduced iron powder is a kind of important metal dust in powder metallurgy industry, in industry-by-industry, there is important purposes, domestic reduced iron powder normally adopts tunnel cave to carry out processing at present, traditional tunnel cave of doing fuel with coal is eliminated already, instead be with heavy oil, coal gas or natural gas are the tunnel cave of fuel, what domestic most of factories adopted is Natural Gas Fueled Tunnel Kiln, China is manufacturing powerhouse, to being in great demand of reduced iron powder, in the process of producing reduced iron powder, the consumption of the energy is very large, therefore the utilization ratio that how to improve the energy is all eternal emphasis problem to enterprise or concerning country.
The structure of tunnel cave is divided into three parts, be preheating section, high temperature section, cooling section, at present, the cooling most employing Water Cooling Technology of domestic manufacturer to tunnel kiln body cooling section, in cooling section kiln body, install 2 exactly---3 joint metal recirculated water ice chests, the heat exchange method of draining hot water by injecting cold water reduces kiln body cooling section temperature, to prevent or to reduce the sponge iron Quick Oxidation in this section of kiln body after calcining.Therefore because the heat absorption capacity of water is limited, this mode can not reduce the temperature of cooling section effectively, and the water after heating need to discharge the recycling of lowering the temperature, and a large amount of heat energy spill into atmosphere, and the energy has been caused to great waste.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of energy-saving Natural Gas Fueled Tunnel Kiln, this tunnel cave has increased the combustion rate of natural gas when effectively reducing cooling section temperature, reduce the consumption of the energy, improved fuel availability, increased the benefit of enterprise.
For solving the problems of the technologies described above, a kind of energy-saving Natural Gas Fueled Tunnel Kiln that the utility model provides, tunnel cave body and natural gas combustion nozzle have been comprised, specifically the top in described tunnel cave cooling section kiln is provided with some heat exchanger tubes, one end of heat exchanger tube is connected with air inlet pipe, the other end is connected with appendix, described air inlet pipe is passed with outside high pressure positive blower and is connected by the kiln top of cooling section, described appendix is passed on the sidewall that is fixed on tunnel cave high temperature section by kiln top, is provided with the connection corresponding to natural gas combustion nozzle of several isocons on appendix.
In order to improve the caloric receptivity of cold air in cooling section, moving towards of described heat exchanger tube is S-type.
In order to reduce the loss of heat, described appendix outer wrap heat-preservation cotton.
For the convenient HAI Heated Air Intake amount of controlling each natural gas combustion nozzle, on described isocon, be provided with by-pass valve control.
In order to guarantee the security of tunnel cave, on described appendix, be provided with Pressure gauge.
The utility model has the advantage of: described energy-saving Natural Gas Fueled Tunnel Kiln, simple in structure, when utilizing heat exchanger tube to lower the temperature to cooling section, also increased the combustion rate of natural gas, reduced energy resource consumption, evade the heat waste that traditional water-cooled valve causes, to improving the benefit of enterprise and saving national resources, all contribute.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further.
Fig. 1 is the structural representation of described tunnel cave
In figure: 1 tunnel cave body, 2 high pressure positive blowers, 3 air inlet pipe, 4 appendixs, 5 heat exchanger tubes, 6 isocons, 7 natural gas combustion nozzles, 8 by-pass valve controls, 9 Pressure gauges.
The specific embodiment
As described in Figure 1: a kind of energy-saving Natural Gas Fueled Tunnel Kiln, tunnel cave body 1 and natural gas combustion nozzle 7 have been comprised, specifically the top in described tunnel cave cooling section kiln is provided with some heat exchanger tubes 5, the high pressure positive blower 2 of tunnel cave outside blows into air inlet pipe 3 by cold air, air inlet pipe 3 is connected with heat exchanger tube 5, cold air enters heat exchanger tube 5, the heat temperature rising that cold air in heat exchanger tube 5 absorbs tunnel cave cooling section becomes hot-air, temperature in tunnel cave cooling section reduces simultaneously, evaded due to cooling section excess Temperature be reduced iron powder again oxidized situation occur, in order to improve the caloric receptivity of cold air in cooling section, moving towards of described heat exchanger tube 5 is S-type, hot-air in heat exchanger tube 5 enters appendix 4, in order to reduce the thermal loss of appendix 4 interior hot-airs, the outer wrap of described appendix 4 heat-preservation cotton, on described appendix 4, be provided with Pressure gauge 9, operator can monitor the air pressure in appendix 4 at any time, once pressure exceeds standard, can adjust in time the rotating speed of high pressure positive blower 2, reduce air inflow, on appendix 4, be provided with the connection corresponding to natural gas combustion nozzle 7 of several isocons 6, hot-air in appendix 4 enters natural gas combustion nozzle 7 by isocon 6, for the convenient HAI Heated Air Intake amount of controlling each natural gas combustion nozzle 7, on described isocon 6, be provided with by-pass valve control 8, hot-air has played combustion-supporting effect to natural gas, greatly improved the combustion rate of natural gas, saved the use amount of natural gas, contrast traditional water-cooled valve, this technical scheme not only reduces the temperature of cooling section effectively, water resource and natural gas have also been saved, energy-conserving and environment-protective, improved the economic benefit of enterprise, saved national resources, realize technical purpose of the present utility model.
Claims (3)
1. an energy-saving Natural Gas Fueled Tunnel Kiln, tunnel cave body (1) and natural gas combustion nozzle (7) have been comprised, it is characterized in that: the top in described tunnel cave cooling section kiln is provided with some heat exchanger tubes (5), one end of heat exchanger tube (5) is connected with air inlet pipe (3), the other end is connected with appendix (4), described air inlet pipe (3) is passed with outside high pressure positive blower (2) and is connected by the kiln top of cooling section, described appendix (4) is passed on the sidewall that is fixed on tunnel cave high temperature section by kiln top, on appendix (4), be provided with several isocons (6) and the corresponding connection of natural gas combustion nozzle (7), on described appendix (4), be provided with Pressure gauge (9), on described isocon (6), be provided with by-pass valve control (8).
2. energy-saving Natural Gas Fueled Tunnel Kiln according to claim 1, is characterized in that: described heat exchanger tube (5) move towards S-type.
3. energy-saving Natural Gas Fueled Tunnel Kiln according to claim 1, is characterized in that: the outer wrap of described appendix (4) heat-preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266876.6U CN203980878U (en) | 2014-05-23 | 2014-05-23 | A kind of energy-saving Natural Gas Fueled Tunnel Kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266876.6U CN203980878U (en) | 2014-05-23 | 2014-05-23 | A kind of energy-saving Natural Gas Fueled Tunnel Kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980878U true CN203980878U (en) | 2014-12-03 |
Family
ID=51978309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266876.6U Expired - Fee Related CN203980878U (en) | 2014-05-23 | 2014-05-23 | A kind of energy-saving Natural Gas Fueled Tunnel Kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980878U (en) |
-
2014
- 2014-05-23 CN CN201420266876.6U patent/CN203980878U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170523 |