CN201897389U - Hot air sintering tester - Google Patents
Hot air sintering tester Download PDFInfo
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- CN201897389U CN201897389U CN2010206760960U CN201020676096U CN201897389U CN 201897389 U CN201897389 U CN 201897389U CN 2010206760960 U CN2010206760960 U CN 2010206760960U CN 201020676096 U CN201020676096 U CN 201020676096U CN 201897389 U CN201897389 U CN 201897389U
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- air
- type heat
- hot
- heat storing
- heat accumulation
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Abstract
The utility model relates to a hot air sintering tester, which belongs to the technical field of sintering and comprises a cold air pipeline, an air preheater, I type heat accumulation walls, II type heat accumulation walls, heating elements, a hot air pipeline, an air flow rate controller, a hot air cover, a sintering cup and a heat accumulation chamber, wherein the cold air pipeline (1) and the hot air pipeline (9) are respectively connected to both ends of the air preheater (3), eight groups of heating elements (6) are respectively distributed in the middle positions of the inner wall of the air preheater (3), eight groups of I type heat accumulation walls (4) and II type heat accumulation walls (5) are vertically arranged in a preheating chamber, the hot air cover (13) is connected with the air preheater (3) through the hot air pipeline (9), and the air flow controller (10) is connected in series on the hot air pipeline (9). Through top and bottom staggered arrangement design of octagonal air holes of the heat accumulation walls and the alternate arrangement of two kinds of heat accumulation walls in the air preheater, better heat accumulation capability of the heat accumulation walls is ensured, the sufficient heat exchange of cold air is also realized in the heat accumulation chamber, and continuous and stable hot air is provided for the sintering cup for carrying out hot air sintering.
Description
Technical field
The utility model belongs to the sintering technology field, particularly relates to a kind of hot gas sintering experimental rig, is applicable to the influence of simulation hot gas sintering to sintering index and sinter quality.
Background technology
Owing to exist the segregation distribution and the bed of material from the accumulation of heat effect in the sintering production process, cause material layer lower part heat surplus, the top deficiency.Simultaneously, suction cold wind in bed of material top cools off fast, produces big internal stress and crackle, influences sinter strength.Utilize hot gas sintering not only can improve the intensity of sintering deposit, but also can improve the reproducibility of sintering deposit.Therefore, research for hot gas sintering in recent years draws attention gradually, but the means of research are imperfection always, some adopt electric tube furnace to originate as hot blast, insert sintered cup and carry out hot gas sintering, this mode is difficult to for a long time hot blast temperature be maintained a stable interval, thus the accuracy of influence test.
Summary of the invention
The purpose of this utility model is to provide a kind of hot gas sintering experimental rig, has increased the hot gas sintering device on the basis of sintering cup test device.This device can change different hot blast temperatures and hot air flow, adjusts different hot blast systems, and the research hot gas sintering is to the influence of sintering index, sinter quality.
The utility model comprises cold-air duct, air preheater, I type Heat Storing Wall, II type Heat Storing Wall, heating element heater, hot-air duct, air flow controller, air bells cap, sintered cup, regenerator; Cold-air duct and hot-air duct are connected to the air preheater two ends, eight groups of heating element heaters are arranged in air preheater inwall medium position respectively, eight groups of I type Heat Storing Wall and II type Heat Storing Wall are arranged vertically in preheating chamber, air bells cap is connected by hot-air duct with air preheater, and air flow controller 10 is series on the hot-air duct 9.
Heating element heater 6 is arranged in air preheater 3 inwalls center all around, is used to guarantee that I type Heat Storing Wall 4, II type Heat Storing Wall 5 and air are heated evenly.
But I type Heat Storing Wall 4, II type Heat Storing Wall 5 adopt the high-alumina brick material of accumulation of heat to make, respectively at the first half and the latter half layout three row's octagonal pores 17 straggly, and I type Heat Storing Wall 4 and II type Heat Storing Wall 5 are arranged in the preheating chamber 16 respectively at interval, play the accumulation of heat effect on the one hand, carry out sufficient heat exchange with the cold air that is entered by cold-air duct 1, I type Heat Storing Wall 4, II type Heat Storing Wall 5 are alternately distributed on the other hand can increase the be heated stroke of air in air preheater 3.
Air flow controller 10 is series on the hot-air duct 9, the control air mass flow.
Air preheater 3 inside and air bells cap 13 inner two side positions are arranged thermocouple a 3, thermocouple b 11 and thermocouple c 12 respectively, guarantee that the hot air temperature that enters sintered cup 14 is evenly distributed.
The beneficial effects of the utility model:
By arrangement design straggly about the octagonal pore of Heat Storing Wall, and two kinds of Heat Storing Wall are alternately arranged in air preheater, both guaranteed that Heat Storing Wall had better heat storage capacity, make cold air in regenerator, obtain sufficient heat exchange again, provide lasting, stable hot blast to carry out hot gas sintering to sintered cup.
This hot gas sintering experimental rig provides sufficient, stable hot blast to realize hot gas sintering by air preheater to sintered cup, can change hot blast temperature and hot air flow, realize different hot blast systems, understand the influence of hot gas sintering truly, accurately sintering index and sinter quality.
Description of drawings
Fig. 1 is a hot gas sintering experimental rig schematic diagram.Wherein, cold-air duct 1, cold-air flap 2, air preheater 3, I type Heat Storing Wall 4, II type Heat Storing Wall 5, heating element heater 6, thermocouple a7, hot-air valve 8, hot-air duct 9, air flow controller 10, thermocouple b11, thermocouple c12, air bells cap 13, sintered cup 14, temperature controller 15, regenerator 16.
Fig. 2 is an I type Heat Storing Wall schematic diagram.Wherein, octagonal pore.
Fig. 3 is an II type Heat Storing Wall schematic diagram.Wherein, octagonal pore.
The specific embodiment
The utility model comprises cold-air duct 1, cold-air flap 2, air preheater 3, I type Heat Storing Wall 4, II type Heat Storing Wall 5, heating element heater 6, thermocouple a7, hot-air valve 8, hot-air duct 9, air flow controller 10, thermocouple b11, thermocouple c12, air bells cap 13, sintered cup 14, temperature controller 15, regenerator 16.Cold-air duct 1 and hot-air duct 9 are connected to air preheater 3 two ends, eight groups of heating element heaters 6 are arranged in air preheater 3 inwall medium positions respectively, eight groups of I type Heat Storing Wall 4 and II type Heat Storing Wall 5 are arranged vertically in preheating chamber, and air bells cap 13 is connected by hot-air duct 9 with air preheater 3.
As shown in Figure 1, utilize heating element heater 6, by temperature controller 15 regenerator 16 was heated to behind the design temperature constant temperature 2 hours, air flow controller 10 is made as given flow, after finishing, sintered cup 14 igniting open cold-air flap 2 and hot-air valve 8, cold air is entered in the regenerator 16 of air preheater 3 by cold-air duct 1, octagonal pore 17 through I type Heat Storing Wall 4 and II type Heat Storing Wall 5, with enter air bells cap by hot-air duct 9 after the Heat Storing Wall sufficient heat exchange, enter sintered cup 14 at last and carry out hot gas sintering.Close cold-air flap 2, hot-air valve 8 after sintering process is finished, close air preheater 3, off-test.
Claims (5)
1. a hot gas sintering experimental rig comprises cold-air duct, air preheater, I type Heat Storing Wall, II type Heat Storing Wall, heating element heater, hot-air duct, air flow controller, air bells cap, sintered cup, regenerator; It is characterized in that, cold-air duct (1) and hot-air duct (9) are connected to air preheater (3) two ends, eight groups of heating element heaters (6) are arranged in air preheater (3) inwall medium position respectively, eight groups of I type Heat Storing Wall (4) and II type Heat Storing Wall (5) are arranged vertically in preheating chamber, air bells cap (13) is connected by hot-air duct (9) with air preheater (3), and air flow controller (10) is series on the hot-air duct (9).
2. hot gas sintering experimental rig according to claim 1, it is characterized in that, I type Heat Storing Wall (4), II type Heat Storing Wall (5) be respectively at the first half and the latter half layout three row's octagonal pores (17) straggly, and I type Heat Storing Wall (4) and II type Heat Storing Wall (5) are arranged in the preheating chamber (16) at the interval respectively.
3. hot gas sintering experimental rig according to claim 1 is characterized in that, heating element heater (6) is arranged in air preheater (3) inwall center all around.
4. hot gas sintering experimental rig according to claim 1 is characterized in that, I type Heat Storing Wall (4), II type Heat Storing Wall (5) but adopt the high-alumina brick material of accumulation of heat to make.
5. hot gas sintering experimental rig according to claim 1 is characterized in that, air preheater (3) inside and inner two side positions of air bells cap (13) are arranged thermocouple a (3), thermocouple b (11) and thermocouple c (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206760960U CN201897389U (en) | 2010-12-13 | 2010-12-13 | Hot air sintering tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206760960U CN201897389U (en) | 2010-12-13 | 2010-12-13 | Hot air sintering tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897389U true CN201897389U (en) | 2011-07-13 |
Family
ID=44255295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206760960U Expired - Lifetime CN201897389U (en) | 2010-12-13 | 2010-12-13 | Hot air sintering tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329942A (en) * | 2014-11-12 | 2015-02-04 | 宁夏嘉翔自控技术有限公司 | Masonry method of heat accumulator for dividing interior of settling chamber of magnesium metal reducing furnace |
-
2010
- 2010-12-13 CN CN2010206760960U patent/CN201897389U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329942A (en) * | 2014-11-12 | 2015-02-04 | 宁夏嘉翔自控技术有限公司 | Masonry method of heat accumulator for dividing interior of settling chamber of magnesium metal reducing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110713 |