CN203732377U - Experimental facility for simulating high temperature stress of furnace charge in furnace - Google Patents
Experimental facility for simulating high temperature stress of furnace charge in furnace Download PDFInfo
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- CN203732377U CN203732377U CN201320853841.8U CN201320853841U CN203732377U CN 203732377 U CN203732377 U CN 203732377U CN 201320853841 U CN201320853841 U CN 201320853841U CN 203732377 U CN203732377 U CN 203732377U
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- furnace
- experimental provision
- heating furnace
- control system
- hydraulic cylinder
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an experimental facility for simulating high temperature stress of furnace charge in a furnace. The experimental facility for simulating the high temperature stress of the furnace charge in the furnace comprises an electronic control system and is characterized by comprising a heating furnace (1), a hydraulic system (2), a hydraulic cylinder (3), a pressure bar (4) and a computer control system, wherein the hydraulic system (2) is connected to the hydraulic cylinder (3) arranged at the top of the heating furnace (1), the pressure bar (4) is arranged in the heating furnace (1), the upper part of the pressure bar (4) is connected with the hydraulic cylinder (3), and the lower part of the pressure bar (4) is contacted with a sample (10) to be detected; the computer control system is connected with the electronic control system. The experimental facility for simulating the high temperature stress of the furnace charge in the furnace has the advantages that a predetermined pressure curve can be set for the hydraulic system by virtue of the computer control system, and an experiment for simulating continuous and slow stress and warming of the furnace charge in the furnace can be carried out by virtue of the hydraulic system, so that variation of stress of the furnace charge at high temperature and thermal intensity of the furnace charge under continuous warming working condition are determined.
Description
Technical field
The utility model relates to a kind of blast furnace analogue experiment installation, particularly about the experimental provision of simulation furnace charge and intensification situation stressed at furnace high-temperature.
Background technology
In general, the furnace charge of blast furnace or shaft furnace must possess higher hot strength, otherwise can affect gas penetration potential and the direct motion of stock column.But national standard and metallurgical standard are not all stipulated the assay method of hot strength at present, and have only stipulated the assay method of cold strength.Therefore, current most iron and steel enterprise only measures the cold strength of furnace charge and does not measure the hot strength of furnace charge.At present, measure the device of furnace charge cold conditions compressive strength generally by machine driven system and dynamometry composition of the control system, machine driven system comprises base and column, and drive lead screw is contained in column, by motor, by speed reduction unit, drive lead screw is rotated, drive moving beam to move to the testpieces application of force.This device can only carry out the determination experiment of furnace charge cold strength at normal temperatures.
At present, domestic Ye You research unit studies and tests the hot strength of furnace charge, but its experimental technique is mechanical driving device, at high temperature furnace charge pelletizing is exerted pressure rapidly, and pressure when pelletizing moment is broken is studied as hot strength.And in actual production, because furnace charge pressure and temperature are relative slowly risings, so above-mentioned research experiment can not reflect the real work situation of furnace charge in stove completely.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of can simulate the furnace charge slowly experimental provision of stressed and intensification situation, i.e. a kind of experimental provision that bears pressure under the high temperature of furnace charge in shaft furnace or blast furnace of simulating in stove.
For realizing above-mentioned experiment purpose, the utility model by the following technical solutions:
The utility model simulation furnace charge is at the stressed experimental provision of furnace high-temperature, and described experimental provision comprises electric-control system, heating furnace 1, hydraulic system 2, hydraulic cylinder 3, pressure bar 4, video camera 7, high-voltage tube 8, view window 9, and sample to be tested 10; Wherein, hydraulic system 2 is connected to the hydraulic cylinder 3 that is arranged on heating furnace 1 top by high-voltage tube 8, and pressure bar 4 is arranged in heating furnace 1, and the top of pressure bar 4 is connected with hydraulic cylinder 3, bottom contact measured sample 10; The computer control system of this device is connected with electric-control system; Heating furnace 1 described in the utility model has air intake opening 5 and gas outlet 6, and described air intake opening 5 is arranged on a side of described heating furnace 1, and described gas outlet 6 is arranged on the respective side of described air intake opening 5; In the hydraulic system 2 of this device, be provided with ratio pressing system.
The utility model is provided with view window 9 on the fire door of described heating furnace 1, and this view window 9 is positioned at the below of described gas outlet 6; The utility model is also provided with video camera 7, and this video camera 7 is arranged on the front side of view window 9, to observe the image of taking sample in stove; The utility model is also provided with piston back up pad below the hydraulic cylinder 3 at heating furnace 1 top.
The beneficial effects of the utility model are: by computer control system, be that hydraulic system arranges predetermined pressure curve, by hydraulic system, simulate furnace charge slowly stressed experiment with heating up continuously in stove, to measure furnace charge, at high temperature bear the hot strength under pressure variation and continuous warming operating mode.
Accompanying drawing explanation
Fig. 1 shows simulation furnace charge at the structural representation of the stressed experimental provision of furnace high-temperature.
Drawing reference numeral explanation:
1: heating furnace 2: hydraulic system 3: hydraulic cylinder 4: pressure bar 5: air intake opening
6: gas outlet 7: video camera 8: high-voltage tube 9: view window 10: sample to be tested
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Fig. 1 illustrates simulation furnace charge at the view of the stressed experimental provision of furnace high-temperature.
With reference to Fig. 1, hydraulic system 2 of the present utility model is provided with ratio pressing system (not shown), by computer control system, regulate the electric signal of ratio pressing system, the pressure and temp curve setting to realize experiment, thus simulation furnace charge progressively heats up and the situation of pressurized.The hydraulic system 2 of experimental provision is connected to the hydraulic cylinder 3 that is arranged on heating furnace 1 top by high-voltage tube 8, below hydraulic cylinder 3, also according to the stroke of hydraulic cylinder piston, be provided with hydraulic cylinder piston back up pad.Be arranged in heating furnace 1 with the stainless steel pressure rod 4 of the piston welding of hydraulic cylinder 3, its lower end is pressed on sample to be tested 10, and hydraulic cylinder 3 slowly exerts pressure to sample to be tested 10 by pressure bar 4 continuously.Heating furnace 1 is provided with air intake opening 5 and gas outlet 6, and air intake opening 5 is arranged on a side of heating furnace 1, and gas outlet 6 is arranged on the respective side of air intake opening 5, by air intake opening 5 and gas outlet 6, to shaft furnace, passes into the required atmosphere of simulated experiment.In heating furnace 1 one sides, on the fire door of 6 belows, gas outlet, be provided with high temperature resistant and transparent view window 9, corresponding with view window 9 be arranged in addition the video camera 7 on body of heater, by video camera 7, can take in time the modified-image of sample when experiment in stove, for analyzing, measure its experimental result.The computer control system (not shown) of experimental provision is connected with electric-control system (not shown), and by computer program, controls the whole experimentation of experimental provision.
Embodiment
2 cold-bonded carbonic pellet samples to be tested 10 that are 1500kg/m3 by bulk density overlay furnace pressure rod 4 (that is, stainless steel bar) below, and the air intake opening 5 by heating furnace 1 passes into CO gas.Open electric-control system electricity cabinet power supply, with the speed of 10 ℃/min, to heating furnace 1, be heated to 1200 ℃ and automatic heat preserving 1 hour, stop afterwards heating; Now hydraulic cylinder 3 applies pressure to 150N to cold-bonded carbonic pellet with per minute increase 1N pressure by pressure bar 4 continuously.Video camera 7 is taken the state of cold-bonded carbonic pellet in real time by quartz glass view window 9, experiment is found when temperature is 1100 ℃, when pressure is 110N, there is obviously distortion in cold bound pellet, the 20mm of the height of each cold-bonded carbonic pellet during by cold conditions is down to 16mm, and occur between 2 pelletizings, being bonded together crackle simultaneously.This description of test, in reducing atmosphere, the hot strength of this cold-bonded carbonic pellet is not enough to bear the temperature of 1100 ℃ and the pressure of 110N, and has bonding phenomenon.
The utility model is controlled hydraulic system by computer control system, and simulates furnace charge slowly stressed experiment with heating up continuously in stove, has obtained the measurement result of furnace charge hot strength in stove.
The foregoing is only one of embodiment of the present utility model; protection domain of the present utility model is not limited to this; what it should be appreciated by those skilled in the art is; in the situation that do not depart from the scope of the present utility model of claim and equivalent restriction thereof; can modify and perfect to described embodiment, these modifications and improve also should be in protection domain of the present utility model.
Claims (7)
1. simulate furnace charge at the stressed experimental provision of furnace high-temperature, comprise electric-control system, it is characterized in that, described experimental provision comprises: heating furnace (1), hydraulic system (2), hydraulic cylinder (3), pressure bar (4), and computer control system; Wherein, hydraulic system (2) is connected to the hydraulic cylinder (3) that is arranged on heating furnace (1) top by high-voltage tube (8), pressure bar (4) is arranged in heating furnace (1), and the top of pressure bar (4) is connected with hydraulic cylinder (3), bottom contact measured sample (10); Computer control system is connected with electric-control system.
2. experimental provision according to claim 1, it is characterized in that, described heating furnace (1) has air intake opening (5) and gas outlet (6), and described air intake opening (5) is arranged on a side of described heating furnace (1), and described gas outlet (6) are arranged on the respective side of described air intake opening (5).
3. experimental provision according to claim 1, is characterized in that, described hydraulic system is provided with ratio pressing system in (2).
4. experimental provision according to claim 1, is characterized in that, is provided with view window (9) on the fire door of described heating furnace (1).
5. according to the experimental provision described in claim 1 or 4, it is characterized in that, described experimental provision is also provided with video camera (7), and described video camera (7) is arranged on the front side of described view window (9), to observe the image of taking sample in stove.
6. experimental provision according to claim 1, is characterized in that, described pressure bar (4) is stainless steel pressure rod.
7. experimental provision according to claim 1, is characterized in that, in hydraulic cylinder (3) below at described heating furnace (1) top, is also provided with piston back up pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853841.8U CN203732377U (en) | 2013-12-23 | 2013-12-23 | Experimental facility for simulating high temperature stress of furnace charge in furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853841.8U CN203732377U (en) | 2013-12-23 | 2013-12-23 | Experimental facility for simulating high temperature stress of furnace charge in furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732377U true CN203732377U (en) | 2014-07-23 |
Family
ID=51202440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853841.8U Expired - Fee Related CN203732377U (en) | 2013-12-23 | 2013-12-23 | Experimental facility for simulating high temperature stress of furnace charge in furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991125A (en) * | 2019-05-16 | 2019-07-09 | 重庆大学 | A kind of pressure swing type soft melting dropping performance test method and equipment |
-
2013
- 2013-12-23 CN CN201320853841.8U patent/CN203732377U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991125A (en) * | 2019-05-16 | 2019-07-09 | 重庆大学 | A kind of pressure swing type soft melting dropping performance test method and equipment |
| CN109991125B (en) * | 2019-05-16 | 2022-09-23 | 重庆大学 | Method and equipment for testing variable-pressure type reflow dripping performance |
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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: 20140723 Termination date: 20211223 |