CN204509423U - A kind of testing apparatus of green-ball drying and preheating of pellet - Google Patents
A kind of testing apparatus of green-ball drying and preheating of pellet Download PDFInfo
- Publication number
- CN204509423U CN204509423U CN201520168939.9U CN201520168939U CN204509423U CN 204509423 U CN204509423 U CN 204509423U CN 201520168939 U CN201520168939 U CN 201520168939U CN 204509423 U CN204509423 U CN 204509423U
- Authority
- CN
- China
- Prior art keywords
- preheating
- tube
- pelletizing
- preheating tube
- green
- 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
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
A testing apparatus for the green-ball drying and preheating of pellet, belongs to pellet heat property test equipment technical field, for carrying out drying and preheating test to green-ball.Its technical scheme is: it comprises vertical heat stove, pelletizing preheating tube, preheating tube lifting device, green-ball after weighing puts into pelletizing preheating tube, green-ball quantity is in height consistent with drying grate material layer height, vertical heat stove is sent into preheating tube lifting device, and simulate drying and the preheating that drying grate work thermal regulation carries out green-ball, propose pelletizing preheating tube with preheating tube lifting device again after preheating to be dried terminates, make it at room temperature naturally cooling.The utility model has compared with traditional experiment porcelain boat drying and preheating device that structure is simple, easy to use, energy efficient, drying and preheating atmosphere is closer to the advantage of production scene, the pelletizing feed layer thickness of test can be made consistent with production scene, and make the bed of material be heated situation and production scene close, reach the object of simulated field pellet formation drying and preheating process.
Description
Technical field
The utility model relate to a kind of can the green-ball drying and preheating device of the on-the-spot drying of green-ball of simulated production and the pellet of warm, belong to pellet heat property test equipment technical field.
Background technology
Pellet is one of main iron-bearing material in blast fumance, and compared with agglomerate, pellet has the little and uniform feature of granularity, is more conducive to the ventilation property improving the upper blast furnace bed of material, the bed of material is distributed and is more tending towards evenly rationally; In addition, compared with agglomerate, pellet also has regular shape, specific surface area is large, of high grade, and bulk density is large, reduction degree is high, hot strength is good, gas utilize is good, and the advantages such as indirect reduction development are a kind of ideal furnace refractories.
In process of production, pellet formation bed thickness is 180mm to 200mm, and be heated uneven along bed depth direction pelletizing, temperature down reduces successively gradually from charge level upper surface, preheating section upper epidermis temperature reaches 900 DEG C ~ 1000 DEG C, and lower floor is only about 500 DEG C.Current testing laboratory's green-ball drying and preheating carries out in pipe type calciner, first qualified green-ball is put into porcelain boat before test, again the porcelain boat being paved with one deck green-ball is pushed stoving oven and carry out drying and preheating, cause bed depth also unstable because green-ball varies in size, there is no the bed depth of seeking unity of standard, differ comparatively large with working condition, can not green-ball state under accurate simulation production practical situation.And each green-ball that preheating about 15 grades are qualified at most, and do the test of pre-hot-bulb deciduous assessment of indices and need the preheated pellets of 500g qualified grain size at every turn, at least need 150 green-balls, if utilize original pellet roasting stove to carry out drying and preheating, Pelletizing Study amount once needs roasting 10 ~ 12 times, not only lose time but also easily cause the inconsistent of test conditions, the accuracy of final impact test.In order to solve the problem, necessary design is a kind of can be held qualified pelletizing and reach 650 grams, the testing apparatus of the test conditions green-ball drying and preheating consistent with working condition.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of testing apparatus of green-ball drying and preheating of pellet, this testing apparatus can make the pelletizing feed layer thickness of test consistent with production scene, and make the bed of material be heated situation and production scene close, to reach the object of simulated field pellet formation drying and preheating process.
The technical scheme solved the problems of the technologies described above is:
A kind of testing apparatus of green-ball drying and preheating of pellet, it comprises vertical heat stove, pelletizing preheating tube, preheating tube lifting device, vertical heat stove is by corundum heating tube, globars, lagging casing, preheating tube supporting base, furnace temperature thermopair and material temperature thermopair composition, corundum heating tube is positioned at the central authorities of vertical heat stove, preheating tube supporting base is had bottom corundum heating tube, globars and lagging casing is surrounded with outside corundum heating tube, furnace temperature thermopair and material temperature thermopair are inserted in furnace wall and corundum heating tube respectively, pelletizing preheating tube is placed on the preheating tube supporting base of corundum heating tube, preheating tube lifting device is connected with pelletizing preheating tube.
The testing apparatus of the green-ball drying and preheating of above-mentioned pellet, described pelletizing preheating tube is high temperature resistant stainless steel pipe, and the height of pelletizing preheating tube is 180-250mm, and internal diameter is 40-70mm, and wall thickness is 3mm, and bottom part is furnished with the aperture of Φ 3mm.
The testing apparatus of the green-ball drying and preheating of above-mentioned pellet, described preheating tube lifting device by anchor, motor, speed reduction unit, pulley, wireline, link up with into, motor is arranged on bottom anchor, wireline one end is connected and fixed hook, link up with relative with the preheating tube handle of pelletizing preheating tube upper end, the other end connection reducer of wireline, speed reduction unit is connected with motor.
The beneficial effects of the utility model are:
Green-ball after weighing is put into pelletizing preheating tube by the utility model, green-ball quantity is in height consistent with drying grate material layer height, vertical heat stove is sent into preheating tube lifting device, and simulate drying and the preheating that drying grate work thermal regulation carries out green-ball, propose pelletizing preheating tube with preheating tube lifting device again after preheating to be dried terminates, make it at room temperature naturally cooling.The utility model has compared with traditional experiment porcelain boat drying and preheating device that structure is simple, easy to use, energy efficient, drying and preheating atmosphere is closer to the advantage of production scene.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of pelletizing preheating tube;
Fig. 3 is the B-B sectional view of Fig. 3.
In figure, mark is as follows: Heating Furnace Control cabinet 1, vertical heat stove 2, preheating tube lifting device 3, pelletizing preheating tube 4, furnace temperature thermopair 5, material temperature thermopair 6, preheating tube supporting base 7, globars 8, lagging casing 9, corundum heating tube 10, preheating tube handle 11.
Embodiment
Show in figure, the utility model is made up of Heating Furnace Control cabinet 1, vertical heat stove 2, preheating tube lifting device 3, pelletizing preheating tube 4.Heating Furnace Control cabinet 1 is used to the temperature and the heat-up rate that control vertical heat stove 2, can simulate the thermal regulation in actual production process.Preheating tube lifting device 3 is for putting into and propose vertical heat stove 10 by pelletizing preheating tube 4.Pelletizing preheating tube 4 is used for holding green-ball, carries out drying and preheating.
Fig. 1 shows, and vertical heat stove 2 is made up of corundum heating tube 10, globars 8, lagging casing 9, preheating tube supporting base 7, furnace temperature thermopair 5 and material temperature thermopair 6.
Corundum heating tube 10 is positioned at the central authorities of vertical heat stove 2, and be surrounded with globars 8 and lagging casing 9 outside corundum heating tube 10, globars 8 plays heat temperature raising effect.Have preheating tube supporting base 7 bottom corundum heating tube 10, to guarantee that pelletizing preheating tube 4 is placed steadily, pelletizing preheating tube 4 is placed on the preheating tube supporting base 7 of corundum heating tube 10.Furnace temperature thermopair 5 and material temperature thermopair 6 are inserted in furnace wall and corundum heating tube 10 respectively, be used for experiment with measuring time the furnace temperature of pelletizing preheating tube 4 position and pelletizing preheating tube 4 in material temperature.
Fig. 1 shows, preheating tube lifting device 3 by anchor, motor, speed reduction unit, pulley, wireline, link up with into, motor is arranged on bottom anchor, wireline one end is connected and fixed hook, link up with relative with the preheating tube handle 11 of pelletizing preheating tube 4 upper end, the other end connection reducer of wireline, speed reduction unit is connected with motor, and speed reduction unit plays the effect controlling wireline translational speed.。
Fig. 2,3 displays, pelletizing preheating tube 4 is high temperature resistant stainless steel pipe, pelletizing preheating tube 4 one end open is used for filling testing material, fix an outer eaves to be used for installing preheating tube handle 11 in port outer, vertical heat stove 10 is put into and proposed to pelletizing preheating tube 4 by preheating tube handle 11 by the wireline hook of preheating tube lifting device 3.
The height of pelletizing preheating tube 4 is 180-250mm, internal diameter is 40-70mm, wall thickness is 3mm, the height of the pelletizing preheating tube 4 of an embodiment of the present utility model is 200mm, internal diameter is 50mm, wall thickness is 3mm, can hold the qualified pelletizing of about 650 grams, ensures that pre-hot-bulb ultimate compression strength and the surface index that comes off detects required pelletizing amount.
The other end of pelletizing preheating tube 4 is close mouth and is furnished with the aperture of Φ 3mm in bottom part, and aperture makes bed of material top and the bottom atmosphere unimpeded.
Workflow of the present utility model is as follows:
The qualified green-ball of 650g is weighed according to test requirements document, then green-ball is put into pelletizing 4, fix after preheating tube handle 11 until the hook in preheating tube lifting device 3, pelletizing preheating tube 4 is slowly put into vertical heat stove 2 by the decline button started in preheating tube lifting device 3, when pelletizing preheating tube 4 touches preheating tube supporting base 7, stop preheating tube lifting device 3, place steadily until pelletizing preheating tube 4, start the raise button in preheating tube lifting device 3, regain hook, material temperature thermopair 6 is inserted in pelletizing preheating tube 4, open Heating Furnace Control cabinet 1 power supply, setup parameter, vertical heat stove 2 is heated up, heat-up rate is 13 DEG C/min, be raised to 700 DEG C of constant temperature 15 minutes, with preheating tube lifting device 3 pelletizing preheating tube 4 mentioned again and move to outside vertical heat stove 2, make it at room temperature naturally cooling, subsequent operations is carried out after off-test.
Claims (3)
1. the testing apparatus of the green-ball drying and preheating of a pellet, it is characterized in that: it comprises vertical heat stove (2), pelletizing preheating tube (4), preheating tube lifting device (3), vertical heat stove (2) is by corundum heating tube (10), globars (8), lagging casing (9), preheating tube supporting base (7), furnace temperature thermopair (5) and material temperature thermopair (6) composition, corundum heating tube (10) is positioned at the central authorities of vertical heat stove (2), preheating tube supporting base (7) is arranged at corundum heating tube (10) bottom, globars (8) and lagging casing (9) is surrounded with outside corundum heating tube (10), furnace temperature thermopair (5) and material temperature thermopair (6) are inserted in furnace wall and corundum heating tube (10) respectively, pelletizing preheating tube (4) is placed on the preheating tube supporting base (7) of corundum heating tube (10), preheating tube lifting device (3) is connected with pelletizing preheating tube (4).
2. the testing apparatus of the green-ball drying and preheating of pellet according to claim 1, it is characterized in that: described pelletizing preheating tube (4) is high temperature resistant stainless steel pipe, the height of pelletizing preheating tube (4) is 180-250mm, internal diameter is 40-70mm, wall thickness is 3mm, and bottom part is furnished with the aperture of Φ 3mm.
3. the testing apparatus of the green-ball drying and preheating of pellet according to claim 2, it is characterized in that: described preheating tube lifting device (3) by anchor, motor, speed reduction unit, pulley, wireline, link up with into, motor is arranged on bottom anchor, wireline one end is connected and fixed hook, link up with relative with the preheating tube handle (11) of pelletizing preheating tube (4) upper end, the other end connection reducer of wireline, speed reduction unit is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168939.9U CN204509423U (en) | 2015-03-25 | 2015-03-25 | A kind of testing apparatus of green-ball drying and preheating of pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168939.9U CN204509423U (en) | 2015-03-25 | 2015-03-25 | A kind of testing apparatus of green-ball drying and preheating of pellet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204509423U true CN204509423U (en) | 2015-07-29 |
Family
ID=53707417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168939.9U Expired - Fee Related CN204509423U (en) | 2015-03-25 | 2015-03-25 | A kind of testing apparatus of green-ball drying and preheating of pellet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204509423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435097A (en) * | 2017-08-08 | 2017-12-05 | 江苏大学 | The multiple physical field simulation experiment system and method for a kind of pelletizing drying and preheating process |
| CN110669922A (en) * | 2019-10-08 | 2020-01-10 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for aerobic roasting of oxidized pellets |
-
2015
- 2015-03-25 CN CN201520168939.9U patent/CN204509423U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435097A (en) * | 2017-08-08 | 2017-12-05 | 江苏大学 | The multiple physical field simulation experiment system and method for a kind of pelletizing drying and preheating process |
| CN107435097B (en) * | 2017-08-08 | 2018-12-14 | 江苏大学 | A kind of the multiple physical field simulation experiment system and method for pelletizing drying and preheating process |
| CN110669922A (en) * | 2019-10-08 | 2020-01-10 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for aerobic roasting of oxidized pellets |
| CN110669922B (en) * | 2019-10-08 | 2021-04-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for aerobic roasting of oxidized pellets |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106082189B (en) | The method producing graphitized material using silicon carbide furnace transformator and resistance furnace | |
| CN204509423U (en) | A kind of testing apparatus of green-ball drying and preheating of pellet | |
| CN204705607U (en) | A kind of coal spontaneous combustion characteristic test is with certainly heating coal sample tank | |
| CN105321701B (en) | A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet | |
| CN104692382B (en) | Method for preparing active carbon by using coke reactivity testing device | |
| CN206430546U (en) | The battery material sintering furnace of bottom even air inlet | |
| CN207797747U (en) | A kind of furnace system | |
| CN102798578A (en) | Method for forecasting ring forming degree of rotary kiln | |
| CN206330916U (en) | The hot load of key device of mineral wool | |
| CN107907571A (en) | One kind is used to characterize concrete explosive spalling degree test stove and test method | |
| CN207327261U (en) | A kind of ceramics drying multiple-layer airing machine | |
| CN102795620B (en) | A kind of hot pressure sintering stove for producing high purity graphite | |
| CN201917218U (en) | Full fibrous furnace lid of roasting furnace | |
| CN207797733U (en) | A kind of high-efficiency ceramic firing kiln | |
| CN204346098U (en) | Energy-saving living beings melt aluminium stove | |
| CN211316945U (en) | Full-automatic intelligent bell jar stove | |
| CN104671809B (en) | Processes for building and drying melting furnace for plasma heat treatment system | |
| CN207351798U (en) | A kind of direct shear apparatus | |
| CN207987313U (en) | A kind of refining converter wind eye brick of copper smelting | |
| CN103851916B (en) | White afrodite manufactures the method for heat accumulating type forge furnace | |
| CN202581788U (en) | Direct-type hot-blast furnace | |
| CN206103965U (en) | Simple and easy thermostatted water bath cabinet | |
| CN105651065B (en) | Cupola slag residual heat using device | |
| CN106498153B (en) | A kind of super thick bed of material is pre-sintered device and its application method | |
| CN203132347U (en) | Small-size sintering cup device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 232, Fuxing Road, Fuxing District, Handan, Hebei Province Patentee after: River steel Limited by Share Ltd Handan branch Address before: 056015 Fuxing Road 232, Hebei, Handan Patentee before: Handan Branch Company of Hebei Iron and Steel Co., Ltd. |
|
| 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: 20150729 Termination date: 20190325 |