SU51938A1 - Method for producing lining bricks for cement rotary kilns - Google Patents
Method for producing lining bricks for cement rotary kilnsInfo
- Publication number
- SU51938A1 SU51938A1 SU??-3471A SU3471A SU51938A1 SU 51938 A1 SU51938 A1 SU 51938A1 SU 3471 A SU3471 A SU 3471A SU 51938 A1 SU51938 A1 SU 51938A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rotary kilns
- cement rotary
- cement
- clinker
- lining bricks
- Prior art date
Links
- 239000011449 brick Substances 0.000 title description 7
- 239000004568 cement Substances 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000011476 clinker brick Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Description
Изобретение дает новый способ получени клинкерного кирпича дл футеровки вращающихс печей, изготовл емого в насто щее врем повсеместно из смеси клинкера и цемента . Смесь эта, увлажненна достаточным количеством воды, после формовки быстро твердеет на холоду и дает довольно прочный кирпич. Однако стойкость такого кирпича в деле весьма незначительна - в лучшем случае немного больше мес ца, чаще всего несколько дней.The invention provides a new method for producing clinker bricks for lining rotary kilns, which are currently manufactured everywhere from a mixture of clinker and cement. This mixture, moistened with a sufficient amount of water, after molding, hardens quickly in the cold and gives a fairly strong brick. However, the resistance of such a brick is very insignificant in practice - at best, a little more than a month, most often several days.
Слаба стойкость цементно-клинкерного кирпича может быть объ снена быстрой потерей им своей прочности в услови х службы. Как известно , вещества, образующие схватившийс цемент, относительно легко тер ют гидратную воду при повышенных температурах. Процессы дегидратации цемента начинаютс уже при 300° и быстро развиваютс с повышением температуры. Таким образом , при длительном пребывании схватившегос цемента при температуре 400-500° он полностью тер ет свои в жущие свойства и св зывать зерна клинкера в кирпиче естественно уже не может. Механическа прочность клинкерно-цементного кирпича начинает вновь нарастать уже при очень высоких температурах около 1200° и выше, т. е. при температурах начала спекани клинкера.The resistance of cement-clinker bricks can be weakly explained by the rapid loss of its strength under service conditions. As is well known, substances that form trapped cement lose relatively easily hydrated water at elevated temperatures. Cement dehydration processes begin already at 300 ° and develop rapidly with increasing temperature. Thus, with a prolonged stay of the cement at a temperature of 400-500 ° C, it completely loses its binding properties and naturally cannot bind the clinker grains in the brick. The mechanical strength of the clinker-cement brick begins to increase again already at very high temperatures of about 1200 ° and higher, i.e., at the temperatures of the start of sintering the clinker.
Во вс кой клинкерно-цементной футеровке вращающейс печи имеетс поэтому в средней части кирпича зона пониженной прочности, по которой и происход т обвалы целых участков футеровки под вли нием толчков , сотр сений, повышенной и неравномерной нагрузки от колец, обмазки и прочих причин.In the entire clinker-cement lining of the rotary kiln, there is therefore a zone of reduced strength in the middle part of the brick, along which collapses of whole sections of the lining under the influence of jolts, losses, increased and uneven load from rings, coating and other causes occur.
Устранение слабой зоны клинкерного кирпича может резко повысить стойкость футеровки и ликвидировать главнейшую причину плохой службы - обвалы.The elimination of the weak zone of clinker brick can dramatically increase the resistance of the lining and eliminate the main cause of poor service - collapses.
Обеспечить требуемое качество возможно введением в состав клинкерной футеровки св зок, которые не только сохран ли бы механические свойства кирпича в холодном состо нии , но обеспечивали бы даже нарастание этих свойств с повышением температуры. Такими св зками могут служить комбинации органических или неорганических кле щих веществ, как-то: патока, декстрин, сульфитIt is possible to ensure the required quality by introducing clinker linings into the composition, which would not only preserve the mechanical properties of the brick in a cold state, but even provide an increase in these properties with increasing temperature. Combinations of organic or inorganic adhesives such as molasses, dextrin, sulfite can serve as such bonds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-3471A SU51938A1 (en) | 1937-01-13 | 1937-01-13 | Method for producing lining bricks for cement rotary kilns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-3471A SU51938A1 (en) | 1937-01-13 | 1937-01-13 | Method for producing lining bricks for cement rotary kilns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU400123A1 SU400123A1 (en) | |
| SU51938A1 true SU51938A1 (en) | 1937-11-30 |
Family
ID=48364293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU??-3471A SU51938A1 (en) | 1937-01-13 | 1937-01-13 | Method for producing lining bricks for cement rotary kilns |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU51938A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9382161B2 (en) | 2012-11-29 | 2016-07-05 | Refratechnik Holding Gmbh | Process using non-fired refractory products as a lining of large-volume industrial furnaces and industrial furnaces lined with the non-fired refractory products |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005051471A1 (en) * | 2005-10-21 | 2007-05-16 | Bizerba Gmbh & Co Kg | Device for the provision of activated indicators for product labeling, product labeling and methods for providing indicators for the labeling of goods |
-
1937
- 1937-01-13 SU SU??-3471A patent/SU51938A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9382161B2 (en) | 2012-11-29 | 2016-07-05 | Refratechnik Holding Gmbh | Process using non-fired refractory products as a lining of large-volume industrial furnaces and industrial furnaces lined with the non-fired refractory products |
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