CN203323556U - Hot-air feeding system of band type roasting machine - Google Patents
Hot-air feeding system of band type roasting machine Download PDFInfo
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- CN203323556U CN203323556U CN2013202851678U CN201320285167U CN203323556U CN 203323556 U CN203323556 U CN 203323556U CN 2013202851678 U CN2013202851678 U CN 2013202851678U CN 201320285167 U CN201320285167 U CN 201320285167U CN 203323556 U CN203323556 U CN 203323556U
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- pulverized coal
- roasting machine
- type roasting
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Abstract
The utility model belongs to the technical field of the band type roasting machine pelletizing technology, and particularly relates to a hot-air feeding system of a band type roasting machine. The hot-air feeding system is characterized by comprising a pulverized coal bunker. A pulverized coal pneumatic conveying device and a dust-extraction unit are arranged at the top of the pulverized coal bunker, a material blocking resistant safety protection device, a valve body and a pulverized coal metering scale are arranged at an outlet in the bottom of the pulverized coal bunker, a pulverized coal injection Roots blower and a combustion-supporting Roots blower are connected with the pulverized coal metering scale, the pulverized coal injection Roots blower and the combustion-supporting Roots blower are respectively connected with a pulverized coal burner in a pulverized coal combustion chamber through connecting tubes, the pulverized coal combustion chamber is respectively connected with a first hot-air tube and a second hot-air tube, the first hot-air tube is arranged above an upper cover of the roasting section of the band type roasting machine, the second hot-air tube is arranged above an upper cover of the soaking section of the band type roasting machine, and a temperature measuring device is arranged in the pulverized coal combustion chamber. The hot-air feeding system is simple in structure and reasonable in design, pulverized coal can be used in the band type roasting machine as fuel, the temperature can be easily controlled, the degree of automation is high, the system operation is stable, and the heat efficiency of the pulverized coal is high.
Description
Technical field
The utility model belongs to belt type roasting machine pelletizing process technical field, especially relates to a kind of belt type roasting machine warm-air supply system.
Background technology
Belt type roasting machine technique is a very ripe pelletizing production technique.Its whole technical process concentrate on a machine, and production efficiency is high, thereby are suitable for extensive pelletizing production; Investment and the running cost of belt type roasting machine technique are relatively low, and its ball layer is relatively static, therefore needn't be too high to the requirement of green ball strength; Belt type roasting machine technique is taked the modes such as direct backheat and blower fan backflow, has utilized most possibly the physical thermal of cooling and torrefaction waste gas; Because belt type roasting machine technique is used cheap solid fuel, make it further to " energy-saving ", to develop, still keep most important status in various pelletizing production methods.But belt type roasting machine, particularly warm-air supply system be the Shortcomings part also: 1) consumption of high temperature resistant special steel alloy is large, class is high.Under the condition of production domesticization at present, larger difficulty is arranged, be difficult to especially guarantee aspect quality; 2) in process of production, high to the stability requirement of raw material.3) quality of finished pellet has inhomogeneous phenomenon.Due to pelletizing, in temperature-rise period, the length of upper and lower bed of material time of staying under the maximum temperature of each section bonnet differs greatly, thereby can have influence on the final strength of finished ball nodulizing.In addition, temperature and the edge effect that more or less exists on chassis in bonnet, also can affect the quality of finished ball nodulizing.4) must use coal gas and the heavy oil of high heating value to make fuel.Owing to being subject to producing the condition restriction such as fuel and production control cost, belt type roasting machine does not obtain large development in China.
Summary of the invention
The purpose of this utility model is that a kind of hot-blast stove of combusting coal fines that adopts provides the belt type roasting machine warm-air supply system of hot blast to belt type roasting machine.
The purpose of this utility model realizes by following technical proposals:
A kind of belt type roasting machine warm-air supply system of the present utility model, comprise belt type roasting machine furnace zone upper cover and belt type roasting machine soaking zone upper cover, it is characterized in that being provided with Pulverized Coal Bin in a side of described belt type roasting machine furnace zone upper cover and belt type roasting machine soaking zone upper cover, the top of this Pulverized Coal Bin is provided with coal dust Pneumatic conveyer and dust arrester, described Pulverized Coal Bin outlet at bottom is provided with the Anti-blockage safety guard, valve body and coal powder metering claim, claim to be connected with the coal powder injection roots blower with described coal powder metering, this coal powder injection roots blower one side is provided with combustion-supporting roots blower, with combustion-supporting roots blower, by connecting pipe, the coal burner indoor with coal dust firing is connected described coal powder injection roots blower respectively, described pulverized coal combustor is connected with respectively hot air duct I and hot air duct II, described hot air duct I is arranged on the top of described belt type roasting machine furnace zone upper cover, described hot air duct II is arranged on described belt type roasting machine soaking zone upper cover top, the indoor temperature measuring equipment that is provided with of described coal dust firing.
Described dust arrester is sack cleaner.
Described valve body is hand operated gate valve.
Described hot air duct I and hot air duct II outside are provided with heat-insulation layer.
Advantage of the present utility model:
(1) belt type roasting machine warm-air supply system of the present utility model can be used coal dust to act as a fuel, and coal dust is economical and practical, and the thermal efficiency is high, sufficient combustion; Simultaneously, hot blast pipeline is on the way taked Insulation, makes the heat loss minimum; Be applicable to any place;
(2) the coal dust firing temperature of belt type roasting machine warm-air supply system of the present utility model is easy to control, and by controlling the ratio of coal dust firing amount and combustion air, regulates the hot blast temperature of hot-blast stove;
(3) belt type roasting machine warm-air supply system of the present utility model all adopts Automatic Control, and in system work process, by correlate meter detected parameters real-time monitoring, automaticity is higher;
(4) belt type roasting machine warm-air supply system of the present utility model, stable equipment operation, failure rate is low, the life-span is long, overhauls convenient and swiftly, saves the production maintenance cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Further illustrate the specific embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of belt type roasting machine warm-air supply system of the present utility model, comprise belt type roasting machine furnace zone upper cover 10 and belt type roasting machine soaking zone upper cover 9, it is characterized in that being provided with Pulverized Coal Bin 3 in a side of described belt type roasting machine furnace zone upper cover 10 and belt type roasting machine soaking zone upper cover 9, the top of this Pulverized Coal Bin 3 is provided with coal dust Pneumatic conveyer 2 and dust arrester 1, described Pulverized Coal Bin 3 outlet at bottoms are provided with Anti-blockage safety guard 4, valve body 5 and coal powder metering claim 6, described coal powder metering claims 6 to be connected with coal powder injection roots blower 7, these coal powder injection roots blower 7 one sides are provided with combustion-supporting roots blower 8, described coal powder injection roots blower 7 is connected with the coal burner 15 in pulverized coal combustor 14 by connecting pipe 16 respectively with combustion-supporting roots blower 8, described pulverized coal combustor 14 is connected with respectively hot air duct I 11 and hot air duct II 12, described hot air duct I 11 is arranged on the top of described belt type roasting machine furnace zone upper cover 10, described hot air duct II 12 is arranged on described belt type roasting machine soaking zone upper cover 9 tops, be provided with temperature measuring equipment 13 in described pulverized coal combustor 14.
Described dust arrester 1 is sack cleaner.
Described valve body 5 is hand operated gate valve.
Described hot air duct I 11 and hot air duct II 12 outsides are provided with heat-insulation layer.
Coal dust is delivered to Pulverized Coal Bin 3 tops by coal dust Pneumatic conveyer 2, and the dust arrester 1 that decompression dust removal is used is installed at Pulverized Coal Bin 3 tops.Near the Anti-blockage safety guard 4 of installing Pulverized Coal Bin 3 end openings, be filled with nitrogen during work, not only can loose metal but also can dilute the interior combustable gas concentration of Pulverized Coal Bin 3.Manual flashboard valve body 5 and coal powder metering that 3 times row's mouths of Pulverized Coal Bin are installed successively claim 6, by the system feedback temperature, automatically control coal-supplying amount.Use coal powder injection roots blower 7 coal injections, simultaneously, use combustion-supporting roots blower 8 that combustion air is provided, coal dust and combustion air are delivered to respectively the coal burner 15 be installed on pulverized coal combustor 14 by connecting pipe 16.Pulverized coal combustor 14 is installed temperature measuring equipments 13, hot blast temperature that can real-time feedback control pulverized coal combustor 14.Hot blast is delivered to respectively belt type roasting machine furnace zone upper cover 10 and belt type roasting machine soaking zone upper cover 9 by the hot air duct I 11 with heat-insulation layer and hot air duct II 12.The utility model is simple in structure, reasonable in design, and belt type roasting machine can be used coal dust to act as a fuel, easy control of temperature, and automaticity is high, system run all right, the life-span is long, and the coal dust thermal efficiency is high.
Claims (4)
1. a belt type roasting machine warm-air supply system, comprise belt type roasting machine furnace zone upper cover and belt type roasting machine soaking zone upper cover, it is characterized in that being provided with Pulverized Coal Bin in a side of described belt type roasting machine furnace zone upper cover and belt type roasting machine soaking zone upper cover, the top of this Pulverized Coal Bin is provided with coal dust Pneumatic conveyer and dust arrester, described Pulverized Coal Bin outlet at bottom is provided with the Anti-blockage safety guard, valve body and coal powder metering claim, claim to be connected with the coal powder injection roots blower with described coal powder metering, this coal powder injection roots blower one side is provided with combustion-supporting roots blower, with combustion-supporting roots blower, by connecting pipe, the coal burner indoor with coal dust firing is connected described coal powder injection roots blower respectively, described pulverized coal combustor is connected with respectively hot air duct I and hot air duct II, described hot air duct I is arranged on the top of described belt type roasting machine furnace zone upper cover, described hot air duct II is arranged on described belt type roasting machine soaking zone upper cover top, the indoor temperature measuring equipment that is provided with of described coal dust firing.
2. belt type roasting machine warm-air supply system according to claim 1, is characterized in that described dust arrester is sack cleaner.
3. belt type roasting machine warm-air supply system according to claim 1, is characterized in that described valve body is hand operated gate valve.
4. belt type roasting machine warm-air supply system according to claim 1, is characterized in that described hot air duct I and hot air duct II outside are provided with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202851678U CN203323556U (en) | 2013-05-23 | 2013-05-23 | Hot-air feeding system of band type roasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202851678U CN203323556U (en) | 2013-05-23 | 2013-05-23 | Hot-air feeding system of band type roasting machine |
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| Publication Number | Publication Date |
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| CN203323556U true CN203323556U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202851678U Expired - Fee Related CN203323556U (en) | 2013-05-23 | 2013-05-23 | Hot-air feeding system of band type roasting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234350A (en) * | 2013-05-23 | 2013-08-07 | 中冶北方（大连）工程技术有限公司 | Hot air supply system for belt type roasting machine |
-
2013
- 2013-05-23 CN CN2013202851678U patent/CN203323556U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234350A (en) * | 2013-05-23 | 2013-08-07 | 中冶北方（大连）工程技术有限公司 | Hot air supply system for belt type roasting machine |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20131204 Termination date: 20200523 |