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Method and device for decarburizing coal-based slag and synchronously preparing potassium-silicon compound fertilizer
The invention provides a method and device for synchronously decarbonizing coal-based slag and preparing potassium-silicon compound fertilizer, and the method comprises the following steps: step 1, crushing and grinding blocky coal-based slag; 2, uniformly mixing the crushed and ground coal-based slag with a potassium-containing raw material; 3, putting the uniformly mixed materials into a rotary roasting furnace, introducing carbon dioxide, and carrying out gasification reaction to prepare carbon monoxide and a silicon-potassium fertilizer product; and 4, separating the mixed gas in the flue gas to obtain carbon monoxide. According to the method, carbon resources which are difficult to directly utilize in the coal-based slag are converted into gas energy which is easy to collect and utilize by utilizing carbon dioxide through gasification reaction, meanwhile, the gas energy reacts with the potassium-containing raw material in the roasting process to synchronously prepare the quick-acting and long-acting composite silicon-potassium fertilizer product, and the method is an efficient and slag-free coal-based slag utilization method.
本发明提供了一种煤基渣脱碳同步制备钾硅复合肥的方法及装置，所述方法包括，步骤1：块状煤基渣破碎研磨；步骤2：将破碎研磨后的煤基渣与含钾原料混合均匀；步骤3：将均匀混合的物料放入旋转焙烧炉中，通入二氧化碳，发生气化反应制备一氧化碳及硅钾肥产品；步骤4：烟气中的混合气体经分离后得到一氧化碳。本发明通过气化反应利用二氧化碳将煤基渣中难以直接利用的碳资源转化为易于收集利用的气体能源，同时在焙烧过程与含钾原料反应同步制备速效与长效复合硅钾肥产品，是一种高效、无渣化的煤基渣的利用方法。
Method and device for decarburizing coal-based slag and synchronously preparing potassium-silicon compound fertilizer
The invention provides a method and device for synchronously decarbonizing coal-based slag and preparing potassium-silicon compound fertilizer, and the method comprises the following steps: step 1, crushing and grinding blocky coal-based slag; 2, uniformly mixing the crushed and ground coal-based slag with a potassium-containing raw material; 3, putting the uniformly mixed materials into a rotary roasting furnace, introducing carbon dioxide, and carrying out gasification reaction to prepare carbon monoxide and a silicon-potassium fertilizer product; and 4, separating the mixed gas in the flue gas to obtain carbon monoxide. According to the method, carbon resources which are difficult to directly utilize in the coal-based slag are converted into gas energy which is easy to collect and utilize by utilizing carbon dioxide through gasification reaction, meanwhile, the gas energy reacts with the potassium-containing raw material in the roasting process to synchronously prepare the quick-acting and long-acting composite silicon-potassium fertilizer product, and the method is an efficient and slag-free coal-based slag utilization method.
本发明提供了一种煤基渣脱碳同步制备钾硅复合肥的方法及装置，所述方法包括，步骤1：块状煤基渣破碎研磨；步骤2：将破碎研磨后的煤基渣与含钾原料混合均匀；步骤3：将均匀混合的物料放入旋转焙烧炉中，通入二氧化碳，发生气化反应制备一氧化碳及硅钾肥产品；步骤4：烟气中的混合气体经分离后得到一氧化碳。本发明通过气化反应利用二氧化碳将煤基渣中难以直接利用的碳资源转化为易于收集利用的气体能源，同时在焙烧过程与含钾原料反应同步制备速效与长效复合硅钾肥产品，是一种高效、无渣化的煤基渣的利用方法。
Method and device for decarburizing coal-based slag and synchronously preparing potassium-silicon compound fertilizer
一种煤基渣脱碳同步制备钾硅复合肥的方法及装置
ZHANG TINGAN (author) / WANG LONG (author) / DOU ZHIHE (author) / LIU YAN (author) / LYU GUOZHI (author) / ZHAO QIUYUE (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
C05D
INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C
,
Anorganische, nicht von den Unterklassen C05B, C05C umfasste Düngemittel
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
C05G
Mischungen aus Düngemitteln, die als einzelne von verschiedenen Unterklassen der Klasse C05 umfasst werden
,
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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