Производитель огнеупорных печей

Refractory cement is also called high-temperature cement. The refractory degree of refractory cement is not less than 1580℃. Refractory cement is a clinker made by calcining bauxite and limestone as the main component, with calcium sulfate as the main component and an alumina content of 50%, and then ground into fine powder to make a fire-resistant hydraulic cementitious material. It can be used as a lining for cement rotary and other industrial kilns.

Types of refractory fire cement

Огнеупорный цемент можно разделить на алюминатный огнеупорный цемент., огнеупорный цемент с низким содержанием алюмината кальция, цемент на основе алюмината кальция и магния, и доломитовый огнеупорный цемент различного состава.

Physical and chemical indicators of refractory furnace cement

Calcium Aluminate Cement
		CA-65	CA-68	CA-70	CA-75	CA-80
Химический состав(%)	Al2O3	64-66	67-69	69-71	73-75	77-80
	СаО	32-34	29-31	27-29	23-25	18-20
	SiO2	1.8	1.2	0.3	0.3	0.3
	Fe2O3	0.6	0.6	0.3	0.3	0.3
Specific Surface(cm2/g)		4500	4500	5000	5500	7000
Setting time(час:мин)	Initial setting(мин)	0:40	0:40	0:40	0:45	0:45
	Final Setting(мин)	8:00	8:00	10:00	10:00	10:00
Cold Modulus of Rupture(МПа)	24 hour	6.0мин	6.0мин	6.0мин	6.0мин	5.0мин
	72 hour	8.0мин	8.0мин	8.0мин	8.0мин	6.0мин
Холодная прочность на дробление(МПа)	24hour	45.0мин	45.0мин	45.0мин	45.0мин	35.0мин
	72hour	70.0мин	70.0мин	70.0мин	70.0мин	60.0мин
Рефрактерность(°С)		1680	1710	1730	1750	1770

Application of high-temperature cement

The main application areas of refractory cement are continuous high-temperature industries, such as steel smelting, glass production, производство цемента, furnace bodies, и т. д.. Refractory cement is widely used in these fields because it can withstand harsh working environment conditions such as sustained high temperatures, high pressures, chemical corrosion, и т. д..

Things to note when baking refractory cement furnace lining

(1) At the normal temperature of 350°C, local bursting is most likely to occur, so special attention should be paid to slow baking. If a large amount of steam still emerges after insulation at 350°C, the heating rate should still be slowed down.
(2) Under conditions where ventilation is poor and water vapor cannot be easily discharged, the heat preservation time should be appropriately extended.
(3) When baking with heavy oil, be careful not to spray heavy oil on the surface of the furnace lining to prevent local bursting.
(4) When baking with firewood, direct contact with the flame often causes excessive local temperature rise and should be protected.
(5) The newly poured refractory cement must wait at least 3 days before baking.
(6) The cooling of the refractory cement furnace lining should also be slow and forced ventilation should be avoided.

Furnace cement packaging and shipping

Refractory cement is packaged in 25kg bags, which can also be customized, and then packaged in ton bags to facilitate transportation and transshipment.

Our other refractory materials

We are a Chinese refractory material manufacturer that can produce огнеупорный кирпич of different materials; такой как кирпичи с высоким содержанием глинозема, силикатный кирпич, корундовый кирпич, муллитовые изоляционные кирпичи, магнезиальные углеродные кирпичи, и т. д.. We can also produce unshaped refractory materials, такой как отливки, огнеупорные пластмассы, and refractory ramming materials; and can provide kiln insulation products; such as ceramic fiber blankets, плиты из керамического волокна, and can also give continuous ladle casting nozzles and other refractory materials.

Contact us for a quote on fire furnace cement