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Preparation method of coal gangue sintered brick
The invention discloses a preparation method of a coal gangue sintered brick, and relates to the field of bricks. The method is technically characterized by comprising the following steps: 1, crushingthe low-calorific-value coal gangue into coal gangue crushed materials; 2, drying the sludge, and crushing the dried sludge into sludge powder; 3, uniformly mixing the crushed coal gangue, the sludgepowder and sodium bicarbonate according to a weight ratio of 70-85%: 5-10%: 10-20% to obtain a mixture, adding water into the mixture, and uniformly stirring to obtain a green brick raw material, wherein the weight ratio of the crushed coal gangue to the sludge powder to the sodium bicarbonate is 70-85%: 5-10%: 10-20%; 4, pressing the green brick raw material into a green brick through a lever brick press; and 5, feeding the green brick into a drying chamber to be dried till the water content of the green brick is 5%-8%, then the green brick is fed into a tunnel kiln to be sintered, the product is obtained, the sintering temperature is 950-1050 DEG C, the sintering time is 24-30 h, and the beneficial effects of improving the porosity, the heat preservation performance and the structural strength of the sintered brick are achieved.
本发明公开了一种煤矸石烧结砖的制备方法，涉及砖领域。其技术要点包括如下步骤：步骤一：将低热值煤矸石进行破碎成煤矸石粉碎物；步骤二：将污泥进行干化，再将干化后的污泥破碎成污泥粉料；步骤三，将煤矸石粉碎物、污泥粉料、碳酸氢钠按重量配比煤矸石粉碎物：污泥粉料：碳酸氢钠＝70%～85%：5%～10%：10%～20%混合均匀，得到混合物，然后往混合物中加水并搅拌均匀以获得砖坯原料；步骤四，砖坯原料经杠杆压砖机压制成砖坯；步骤五，将砖坯送入干燥室进行干燥至砖坯的含水量为5%～8%，然后送入隧道窑进行烧结，即得产品，烧结温度为950℃～1050℃，烧结时间为24h～30h，具有提升烧结砖孔洞率、保温性能、结构强度的优点。
Preparation method of coal gangue sintered brick
The invention discloses a preparation method of a coal gangue sintered brick, and relates to the field of bricks. The method is technically characterized by comprising the following steps: 1, crushingthe low-calorific-value coal gangue into coal gangue crushed materials; 2, drying the sludge, and crushing the dried sludge into sludge powder; 3, uniformly mixing the crushed coal gangue, the sludgepowder and sodium bicarbonate according to a weight ratio of 70-85%: 5-10%: 10-20% to obtain a mixture, adding water into the mixture, and uniformly stirring to obtain a green brick raw material, wherein the weight ratio of the crushed coal gangue to the sludge powder to the sodium bicarbonate is 70-85%: 5-10%: 10-20%; 4, pressing the green brick raw material into a green brick through a lever brick press; and 5, feeding the green brick into a drying chamber to be dried till the water content of the green brick is 5%-8%, then the green brick is fed into a tunnel kiln to be sintered, the product is obtained, the sintering temperature is 950-1050 DEG C, the sintering time is 24-30 h, and the beneficial effects of improving the porosity, the heat preservation performance and the structural strength of the sintered brick are achieved.
本发明公开了一种煤矸石烧结砖的制备方法，涉及砖领域。其技术要点包括如下步骤：步骤一：将低热值煤矸石进行破碎成煤矸石粉碎物；步骤二：将污泥进行干化，再将干化后的污泥破碎成污泥粉料；步骤三，将煤矸石粉碎物、污泥粉料、碳酸氢钠按重量配比煤矸石粉碎物：污泥粉料：碳酸氢钠＝70%～85%：5%～10%：10%～20%混合均匀，得到混合物，然后往混合物中加水并搅拌均匀以获得砖坯原料；步骤四，砖坯原料经杠杆压砖机压制成砖坯；步骤五，将砖坯送入干燥室进行干燥至砖坯的含水量为5%～8%，然后送入隧道窑进行烧结，即得产品，烧结温度为950℃～1050℃，烧结时间为24h～30h，具有提升烧结砖孔洞率、保温性能、结构强度的优点。
Preparation method of coal gangue sintered brick
一种煤矸石烧结砖的制备方法
CHEN KUNSONG (author)
2020-06-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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