SU291820A1 - METHOD OF PROTECTION OF BULK LOADS OF SMALL FRACTIONS FROM SPRAYING DURING TRANSPORTATION - Google Patents
METHOD OF PROTECTION OF BULK LOADS OF SMALL FRACTIONS FROM SPRAYING DURING TRANSPORTATIONInfo
- Publication number
- SU291820A1 SU291820A1 SU1102371A SU1102371A SU291820A1 SU 291820 A1 SU291820 A1 SU 291820A1 SU 1102371 A SU1102371 A SU 1102371A SU 1102371 A SU1102371 A SU 1102371A SU 291820 A1 SU291820 A1 SU 291820A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- during transportation
- protection
- spraying during
- sulphite
- small fractions
- Prior art date
Links
- 238000005507 spraying Methods 0.000 title claims description 4
- 238000004642 transportation engineering Methods 0.000 title claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
i i
Известны способы защиты сыпучих грузов мелких фракций, например, угл , от распылени , заключаюш,иес в том, что на их поверхность нанос т раствор, образуюодий пленку н содержащий сульфитные щелоки. Однако такие способы непригодны дл защиты рудного концентрата от распылени из-за различных физико-механических свойств сыпучих грузов.There are known methods for protecting bulk solids, such as coal, from spraying, which implies that a solution is applied to their surface, forming a film and containing sulfite liquors. However, such methods are unsuitable for protecting ore concentrate from spraying due to the different physicomechanical properties of bulk cargo.
Предлагаемый способ отличаетс от известных тем, что дл защиты рудного концентрата в состав раствора ввод т формалин и серную кислоту или крекинг-остаток.The proposed method differs from the known ones in that formalin and sulfuric acid or cracking residue are introduced into the solution to protect the ore concentrate.
КрОлМе того, можно брать раствор, содержащий 91,5% сульфитных щелоков 50%-ной концентрации , 7% формалина и 1,5% серной кислоты . Допустимо также брать раствор, состо щий из 75% сульфитных щелоков (30%-ной концентрации) и 25% крекинг-остатка с образованием из него эмульсии. Возможен также вариант, когда берут раствор, содержащий сульфитные щелоки 40%-ной концентрации.Besides, it is possible to take a solution containing 91.5% sulphite liquor of 50% concentration, 7% formalin and 1.5% sulfuric acid. It is also possible to take a solution consisting of 75% sulphite liquor (30% concentration) and 25% cracking residue to form an emulsion from it. It is also possible that they take a solution containing sulphite liquors of 40% concentration.
Пример. Исходные продукты (сульфитный щелок 50%-ной концентрации и формалин) в пропорции 91,5% сульфитного щелока и 7% формалина последовательно загружают в бакреактор и разогревают до температуры 80- 90°С при перемешивании мешалкой, наход щейс внутри бака. Затем из мерника добавл ют 1,5% серной кислоты.Example. The initial products (sulphite liquor of 50% concentration and formalin) in proportion 91.5% sulphite liquor and 7% formalin are successively loaded into the bacreactor and heated to a temperature of 80-90 ° C with stirring inside the tank. Then 1.5% sulfuric acid is added from the measuring device.
Реакци поликонденсации протекает в течение двух часов. По окончании реакции в гор чий полимер добавл ют 100% воды, затем смесь тщательно перемешивают и по трубопроводу под давлением распыл ют на поверхность концентрата, погруженного в полувагоны . Расход полимерного раствора 90-100 кг на один полувагон. После застывани полимера на поверхностиThe polycondensation reaction takes place within two hours. At the end of the reaction, 100% water is added to the hot polymer, then the mixture is thoroughly mixed and sprayed onto the surface of the concentrate immersed in gondola cars under pressure. The flow rate of the polymer solution is 90-100 kg per gondola. After curing the polymer on the surface
концентрата образуетс пленка, котора вместе с частицами руды имеет толщину 6-8 мм н предупрел дает распыление рудного концентрата ветром при скорости движени поезда до 80 км:час и дальних перевозках.concentrate film is formed, which, together with ore particles, has a thickness of 6-8 mm and warned gives the ore concentrate to be sprayed with wind at a train speed of up to 80 km: hour and long-distance traffic.
Предмет изобретени Subject invention
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU291820A1 true SU291820A1 (en) |
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