Anhydrous Stemming
1. Moderate plasticity
2. Good volume stability
3. Strong slag resistance
4. Have a certain expansion performance
2. Good volume stability
3. Strong slag resistance
4. Have a certain expansion performance
Anhydrous Stemming Introduction
The main production ratio of anhydrous stemming is (%): brown steel jade 15-24, silicon carbide 6-15, coke 20, white mud 12-16, tar 18-20. Refractory mortar has a compressive strength of 20 MPa, the opening is easy when the blast furnace is opened, the anti-scouring performance is good.
Anhydrous Stemming Feature
1.Refractory anhydrous stemming has good plasticity and cohesiveness, refractory material is easy to be squeezed into and fills space and gap.
2.After high temperature burning, the volume can shrink small, no crack is generated, the sinterability is good, the compressive strength is high, the erosion resistance, the erosion resistance and the like.
3.Strong anti-slag performance. The shell mud consumption is low, generally one-fifth of the water cannon mud.
4.Has a certain expansion performance. With suitable porosity and strength, it can be used in large blast furnaces over 2000m3.
Anhydrous Stemming Specification
The main production ratio of anhydrous stemming is (%): brown steel jade 15-24, silicon carbide 6-15, coke 20, white mud 12-16, tar 18-20. Refractory mortar has a compressive strength of 20 MPa, the opening is easy when the blast furnace is opened, the anti-scouring performance is good.
Anhydrous Stemming Feature
1.Refractory anhydrous stemming has good plasticity and cohesiveness, refractory material is easy to be squeezed into and fills space and gap.
2.After high temperature burning, the volume can shrink small, no crack is generated, the sinterability is good, the compressive strength is high, the erosion resistance, the erosion resistance and the like.
3.Strong anti-slag performance. The shell mud consumption is low, generally one-fifth of the water cannon mud.
4.Has a certain expansion performance. With suitable porosity and strength, it can be used in large blast furnaces over 2000m3.
Anhydrous Stemming Specification
| Item | Index | |||
| RS-1 | RS-2 | RS-3 | ||
| Al2o3 | % | 20 | 25 | 30 |
| Sic+C | % | 30 | 30 | 30 |
| Density Bulk | g/cm3 | 1.65 | 1.70 | 1.80 |
| Heating line permanent line change | % | ±1.5 | ±1.5 | ±1.0 |
| Cold Crushing Strength | MPa | 8 | 10 | 15 |
Anhydrous Stemming Application
1.Refractory anhydrous mud can be used in the taphole and slag mouth of the blast furnace
2.Anhydrous stemming for blast furnace can also be applied to the iron mouth of the ore furnace.
Anhydrous Stemming Using Instructions
1.Refractory material anhydrous stemming can be used in the blast furnace tap and slag mouth, and can also be applied to the iron furnace of the mine furnace.
2.Anhydrous stemming for blast furnace is divided into two types: one is normal waterless cannon mud, mud gun thrust greater than 12MPa can be directly preheated,the other is soft waterless cannon mud. Soft cannon is specially prepared for small thrust mud cannons.
3. Refractory anhydrous mud is heated and preheated properly during use, while the soft waterless cannon is heated without preheating.
The whole process of refractory material anhydrous stemming should be in a waterless environment.
Anhydrous Stemming Operation Instructions
1.As shown in Figure 1,refractory material stemming is placed in the iron mouth 2 hours in advance, the baking on both sides of the slag mouth is preheated to ensure that it can reach 50 ° C - 100 ° C, 70 ° C before loading. The best is left and right.
2.Put refractory material anhydrous stemming into refractory mud cannon before each opening, the principle is to fill it up.
3.the opening is normal iron, after the slag, the front end of the mud gun with the refractory mud can be displaced to the iron by 500 mm, the top of the slag mouth (about 500 mm) is naturally baked for about 5 minutes, then squeezed out slightly. stand-by.
4. when blocking the mouth, all the mud should be driven in, the top shot time is about 15 minutes, you can spray water around the iron, slag mouth to cool down.
5.Refractory bricks should be returned immediately after the return of the gun, refractory mud gun piston is loaded into the soft cannon 20 kg, and the remaining gun mud in the mud gun, and confirmed to be used.
6.When loading the preheated cannon mud next time, squeeze out the soft waterless cannon in front of the refractory mud cannon. Soft cannon is reusable. Please carefully grasp the residual amount of waterless cannon in the refractory mud gun for each operation, the less the better (because the soft cannon can not be used as the normal gun mud of the iron slag mouth).
For each operation, please check the coking condition of the gun. If coking is found, please clean it with steel brazing immediately.
Anhydrous Stemming Manufacturer in RS Refractory Company
Rongsheng Refractory Factory is a fire-resistant and thermal insulation material production enterprise. It is a comprehensive enterprise integrating scientific research, testing, development, production, sales and customers. Rongsheng refractory group have one production line for stereotyped and amorphous fire-resistant and wear-resistant products. One production line is enough to meet the processing capacity of 80,000 tons of high-quality refractory products per year, it has a construction team with professional anti-corrosion and thermal insulation engineering level and kiln masonry second-class qualification. The scope of construction includes the completion of turnkey projects from contract signing, material supply, metal spraying, corrosion-resistant spraying, material masonry insulation, oven, and operation. It has comprehensive testing methods and can guide us to each product. Indicators and each subtle production link.
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