CN209803035U - Sintering cup - Google Patents
Sintering cup Download PDFInfo
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- CN209803035U CN209803035U CN201920313129.6U CN201920313129U CN209803035U CN 209803035 U CN209803035 U CN 209803035U CN 201920313129 U CN201920313129 U CN 201920313129U CN 209803035 U CN209803035 U CN 209803035U
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Abstract
a sintering cup is used for completing an iron ore sintering test on a sintering machine, the sintering cup is placed in a pottery bucket, raw mineral powder is filled in a gap between the pottery bucket and the sintering cup, and the sintering cup and the pottery bucket are buried in a mixture in a trolley of the sintering machine during the test; the sintering cup is provided with a cup body and a cup bottom; the cup body is of a split structure and is formed by combining a left part and a right part, the left part and the right part are hinged and assembled with the cup bottom through a connecting shaft, and the left part and the right part are connected and closed through a hinged hook component arranged at the upper end of the left part and the right part. The utility model discloses the sintering cup that has guaranteed to go on the sintering machine is experimental can effectively be implemented to solved current sintering cup test data and lacked the problem of guiding significance to actual production.
Description
Technical Field
The utility model relates to a sintering cup, especially a sintering cup who carries out experimental adoption of sintering cup on sintering machine belongs to steel smelting technical field.
Background
The sintering cup test is a test for sintering iron ore by using cup-shaped small test equipment and simulating production conditions, and comprises the steps of preparing raw materials, sintering, processing and inspecting finished products, calculating technical indexes and the like. The sintering cup test can be used for researching the consolidation mechanism and the mathematical model of the sintering ore, thereby improving the process and improving the yield and the quality of the sintering ore, and the sintering cup test can also be used for researching new raw materials and new processes, thereby providing reliable basis for design departments. However, the sintering cup test is carried out in a laboratory and is intermittently operated, so that the ratio of the side area to the volume of the cup body is high, the edge effect of airflow is large, and the heat dissipation capacity is large, so that the drum strength of a sintering cake finished product is low and the solid fuel consumption is high under the same operation condition; in addition, the air leakage rate is low, and the sintering utilization coefficient is also high; the reasons result in that some technical indexes of the sintering cup test are different from the indexes of actual production.
In order to improve the test data of the sintering cup and make the test data more close to the actual production, a method for performing the sintering cup test on a sintering machine can be adopted, so that the sintering cup suitable for performing the sintering cup test on the sintering machine needs to be optimally designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sintering cup to guarantee that the sintering cup that goes on the sintering machine is experimental can effectively be implemented, solve current sintering cup test data and lack the problem of guiding significance to actual production.
The above object of the present invention is achieved by the following technical solutions:
A sintering cup is used for completing an iron ore sintering test on a sintering machine, the sintering cup is placed in a pottery bucket, raw mineral powder is filled in a gap between the pottery bucket and the sintering cup, and the sintering cup and the pottery bucket are buried in a mixture in a trolley of the sintering machine during the test; the sintering cup is provided with a cup body and a cup bottom; the cup body is of a split structure and is formed by combining a left part and a right part, the left part and the right part are hinged and assembled with the cup bottom through a connecting shaft, and the left part and the right part are connected and closed through a hinged hook component arranged at the upper end of the left part and the right part.
In the sintering cup, the bottom of the cup is provided with a plurality of long grooves.
in the sintering cup, the side wall of the cup body is provided with the handle.
According to the sintering cup, the left part and the right part of the cup body are made of steel materials, a steel cylinder is formed after the cup body is closed, and the cup bottom is a circular steel plate matched with the bottom surface of the steel cylinder.
According to the sintering cup, the diameter of the inner cavity of the steel cylinder of the cup body is 300mm, the height of the steel cylinder of the cup body is 500mm, the diameter of the circular steel plate at the bottom of the cup is 300mm, and a plurality of long grooves with the width of 9mm are formed in the circular steel plate at the bottom of the cup.
sintering cup, its cup adopts the components of a whole that can function independently structure of constituteing by controlling two parts, and two parts pass through the articulated assembly of connecting axle and bottom of cup about the cup to connect through articulated couple subassembly and make its closed, consequently finish at the sintering and take out the back with sintering cup from the platform truck, can directly open articulated couple subassembly, two parts just rotate around the direction of connecting the axial opposition under the effect of sinter extrusion force about the cup, empty out finished product sintered cake in the sintering cup, thereby make taking out convenient and fast more of sintered cake. In addition, as the sintering cup is arranged in the ceramic barrel, and the gap between the ceramic barrel and the sintering cup is filled with the raw ore powder, in the test process of the sintering cup, the problem that the outer wall of the sintering cup is burnt due to the fact that the ceramic barrel is crushed due to shrinkage of the sintering ore is avoided, and the sintering cup is convenient to take out from the tail of the sintering machine. To sum up, the utility model discloses the sintering cup that has guaranteed to go on the sintering machine is experimental can effectively be implemented to solve current sintering cup test data and lacked the problem of guiding significance to actual production.
Drawings
FIG. 1 is a schematic view of a mixture for embedding a sintering cup in a sintering pallet through a pottery bucket;
FIG. 2 is a schematic structural view of the sintering cup of the present invention;
FIG. 3 is a view from direction K of FIG. 2;
fig. 4 is a schematic view of the cross-sectional structure a-a in fig. 3.
The list of labels in the figure is: 1. 1-1 parts of sintering cup, 1-2 parts of cup body, 1-3 parts of cup bottom, 1-4 parts of connecting shaft, 1-5 parts of hinged hook component, 2 parts of handle, 3 parts of test material, 3 parts of raw mineral powder, 4 parts of pottery barrel, 5 parts of trolley middle mixture.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the sintering cup of the present invention is used for completing iron ore sintering tests on a sintering machine, wherein the sintering cup 1 is arranged in a pottery bucket 4, raw mineral powder 3 is filled in a gap between the pottery bucket 4 and the sintering cup 1, and the sintering cup 1 and the pottery bucket 4 are buried in a mixture 5 in a sintering pallet during the tests.
Referring to fig. 2 and 3, in the sintering cup 1 of the present invention, the sintering cup 1 is provided with a cup body 1-1 and a cup bottom 1-2; the cup body 1-1 is of a split structure and is formed by combining a left part and a right part, the left part and the right part are hinged and assembled with a cup bottom 1-2 through a connecting shaft 1-3 and are connected and closed through a hinged hook component 1-4 arranged at the upper end of the cup body, the left part and the right part form a cylindrical structure after being closed, a test finished sintered cake is convenient to take out after the hinged hook component 1-4 is opened, a handle 1-5 is arranged on the side wall of the cylindrical structure, and the sintered cup 1 can be very conveniently taken and placed through the handle 1-5.
Referring to fig. 3 and 4, in the sintering cup 1 of the present invention, the cup bottom 1-2 is a circular steel plate matching the bottom surface of the steel cylinder, and a plurality of elongated slots 1-2-1 with a width of 9mm are provided on the cup bottom 1-2.
Referring to fig. 2 to 4, as a preferred embodiment of the sintering cup of the present invention, the cup body 1-1 of the sintering cup 1 is a steel cylinder composed of a left part and a right part, the diameter of the inner cavity of the steel cylinder is 300mm, the height of the steel cylinder is 500mm, the diameter of the circular steel plate at the bottom of the cup 1-2 is 300mm, and a plurality of elongated slots 1-2-1 are provided on the circular steel plate at the bottom of the cup to serve as a flue gas channel reserved at the bottom of the sintering cup, which is more beneficial to the flow of flue gas in the sintering process, and ensures the smooth proceeding of the sintering process.
Adopt sintering cup 1 when carrying out the sintering cup experiment on the sintering machine, go on according to following step:
a. The method comprises the steps of putting a test material 2 which is premixed in advance according to a certain proportion into a sintering cup 1, compacting the test material 2 according to a set test standard, selecting a pottery barrel 4 matched with the sintering cup, placing a paving material 6 at the bottom of the pottery barrel 4, placing the sintering cup 1 in the pottery barrel 4, and filling and tamping a gap between the pottery barrel 4 and the sintering cup 1 with raw ore powder 3;
b. After a trolley of the sintering machine passes through a material pressing device, compacting a mixture 5 in the trolley, stopping running of the trolley, digging a vertical pit hole in the mixture 5 in the trolley, burying a pottery bucket 4 in the pit hole, ensuring that the upper surface of a sintering cup 1 is level with the upper surface of the mixture 5 in the trolley, and backfilling and compacting a gap between the pottery bucket 4 and the mixture 5 in the trolley;
c. starting the trolley, enabling the sintering cup 1 to move along with the trolley, and sintering the mixture 5 in the trolley and the test material 2 in the sintering cup 1 through an igniter;
d. after the trolley runs to the tail part of the sintering machine, taking out the sintering cup 1;
e. Carrying out finished product treatment and inspection on the sinter in the sintering cup 1;
f. And carrying out technical index calculation and data analysis.
The test method of the sintering cup can also be used for simultaneously carrying out tests on a plurality of groups of materials with different component proportions, and three specific examples of the test materials with different component proportions are listed as follows:
the first proportioning embodiment:
| indian meal (kg) | Super powder (kg) | PB powder (kg) | Newman powder (kg) | Powder (kg) of the southern part of Brazil | Lime (kg) | Limestone powder (kg) |
| 8.00 | 15.30 | 22.00 | 15.00 | 8 | 7.00 | 3.40 |
| Composition of sintered ore | TFe | SiO2 | CaO | MgO | Al2O3 | Alkalinity of |
| Numerical value (%) | 54.05 | 5.50 | 10.45 | 3.16 | 2.53 | 1.90 |
Proportioning example two:
| Indian meal (kg) | Super powder (kg) | PB powder (kg) | newman powder (kg) | Powder (kg) of the southern part of Brazil | Lime (kg) | Limestone powder (kg) |
| 8.00 | 15.05 | 22.00 | 15.00 | 8.00 | 7.25 | 3.40 |
| Composition of sintered ore | TFe | SiO2 | CaO | MgO | Al2O3 | Alkalinity of |
| Numerical value (%) | 53.88 | 5.50 | 10.70 | 3.17 | 2.53 | 1.95 |
Proportioning example three:
| indian meal (kg) | Super powder (kg) | PB powder (kg) | Newman powder (kg) | Powder (kg) of the southern part of Brazil | Lime (kg) | limestone powder (kg) |
| 6 | 13 | 21.8 | 17.25 | 10 | 7.25 | 3.4 |
| Composition of sintered ore | TFe | SiO2 | CaO | MgO | Al2O3 | alkalinity of |
| Numerical value (%) | 54.05 | 5.48 | 10.67 | 3.16 | 2.46 | 1.95 |
when sintering cup tests are carried out on the three test materials simultaneously, in the step a, the three test materials with different component proportions are respectively filled into three different sintering cups, marks are made, and the three sintering cups are respectively placed in three pottery barrels; step b need dig out three pothole on mixture 5 in the platform truck, put into three pothole respectively with three pottery bucket, then according to the sintering cup test is carried out to sintering cup test method's subsequent sequence operating procedure, guaranteed from this that under the same test condition, obtain the experimental fritting cake finished product of different composition ratio ore types, then contrast to the data that obtain the ideal are used for guiding actual production.
in the step c, the sintering parameters such as negative pressure (difference between the upper and lower charge levels of the mixture in the trolley), ignition temperature, vertical sintering speed, horizontal sintering speed and the like can be controlled, so that the performance index of a test finished product (a sintered cake) is improved. The specific embodiment is as follows:
Sintering parameter control example one: 13.2 negative pressure (-kPa), 1100 ignition temperature (DEG C), 0.03044 vertical sintering speed (m/min), 1.607 horizontal sintering speed (m/min), taking out the sintered cake after sintering for 12 minutes, detecting that the barrate index (physical performance index reflecting the mechanical strength of the sintered ore) of the sintered ore is 76.33 percent, RDI +3.15 (RDI: low temperature reduction degradation index, which is an important index of the metallurgical performance of the sintered ore, the RDI +3.15 fluctuation directly influences the air permeability of a blast furnace column and increases the top blowing amount of the furnace, the higher the value is the better) is 79.25 percent, the load reduction soft melt dropping 10 percent (the temperature of an experimental sample when the temperature is 10 percent of the initial shrinkage from thermal expansion under the reduction condition is defined as the initial softening temperature, and if the temperature is too low, the thickness and the height of a slag forming zone are influenced) is 1164 ℃, and the load reduction soft melt dropping 40 percent is 1273 ℃.
sintering parameter control example two: 13.2 negative pressure (-kPa), 1100 ignition temperature (DEG C), 0.03044 vertical sintering speed (m/min), 1.607 horizontal sintering speed (m/min), taking out the sintered cake after sintering for 15 minutes, detecting the rotary drum index (%) of the sintered ore of 77.05, RDI +3.15 (%) 80.34, 10% (DEG C) 1165 load-reduced reflow dropping and 40% (DEG C) 1282 load-reduced reflow dropping.
Sintering parameter control example three: 13.2 negative pressure (-kPa), 1100 ignition temperature (DEG C), 0.03044 vertical sintering speed (m/min), 1.607 horizontal sintering speed (m/min), taking out the sintered cake after sintering for 20 minutes, detecting the rotary drum index (%) 77.49 of the sintered ore, RDI +3.15 (%) 80.64, 10% (. degree.C) 1174 of load reduction reflow dropping, and 40% (. degree.C) 1283 of load reduction reflow dropping.
The comparison between the test data obtained by the above test method for the sintering cup and the actual production run data is shown in the following table:
As can be seen from the data in the table above: adopt by the sintering cup test method of going on the sintering machine that the sintering cup supported, the sintering cake product parameter that obtains is unanimous basically with the sintering deposit parameter of actual sintering machine production, therefore can be used to the instruction to actual production through the data that this sintering cup test method acquireed.
Claims (5)
1. A sintering cup is characterized in that the sintering cup is used for completing an iron ore sintering test on a sintering machine, the sintering cup (1) is placed in a pottery bucket (4), raw mineral powder (3) is filled in a gap between the pottery bucket (4) and the sintering cup (1), and the sintering cup (1) and the pottery bucket (4) are buried in a mixture (5) in a trolley of the sintering machine during the test; the sintering cup (1) is provided with a cup body (1-1) and a cup bottom (1-2), the cup body (1-1) is of a split structure and is formed by combining a left part and a right part, the left part and the right part are hinged and assembled with the cup bottom (1-2) through a connecting shaft (1-3), and the left part and the right part are connected and closed through a hinged hook component (1-4) arranged at the upper end of the left part and the right part.
2. A sintering cup according to claim 1, characterized in that the cup bottom (1-2) is provided with a plurality of elongated slots (1-2-1).
3. A sinter cup according to claim 1 or 2, wherein a handle (1-5) is provided on a side wall of the cup body (1-1).
4. A sintering cup according to claim 3, characterized in that the left and right parts of the cup body (1-1) are made of steel material, and form a steel cylinder after being closed, and the bottom (1-2) is a round steel plate matched with the bottom of the steel cylinder.
5. A sintering cup according to claim 4, characterized in that the diameter of the inner cavity of the steel cylinder of the cup body (1-1) is 300mm, the height is 500mm, the diameter of the circular steel plate of the cup bottom (1-2) is 300mm, and a plurality of long grooves (1-2-1) with the width of 9mm are arranged on the circular steel plate of the cup bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313129.6U CN209803035U (en) | 2019-03-13 | 2019-03-13 | Sintering cup |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920313129.6U CN209803035U (en) | 2019-03-13 | 2019-03-13 | Sintering cup |
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| CN209803035U true CN209803035U (en) | 2019-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916944A (en) * | 2019-03-13 | 2019-06-21 | 德龙钢铁有限公司 | A kind of sintering cup test method and sintered cup |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916944A (en) * | 2019-03-13 | 2019-06-21 | 德龙钢铁有限公司 | A kind of sintering cup test method and sintered cup |
| CN109916944B (en) * | 2019-03-13 | 2024-02-27 | 德龙钢铁有限公司 | Sintering cup test method and sintering cup |
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