CN1039789A - 粉煤灰制免烧砖的方法 - Google Patents

粉煤灰制免烧砖的方法 Download PDF

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Publication number
CN1039789A
CN1039789A CN89107021A CN89107021A CN1039789A CN 1039789 A CN1039789 A CN 1039789A CN 89107021 A CN89107021 A CN 89107021A CN 89107021 A CN89107021 A CN 89107021A CN 1039789 A CN1039789 A CN 1039789A
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brick
flyash
parts
brickkiln
gypsum
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CN89107021A
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郭静峰
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Priority to CN89107021A priority Critical patent/CN1039789A/zh
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

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Abstract

本发明提出一种不通过砖窑高温烧结制砖的方法，以粉煤灰、石膏、生石灰和水为原料，磨碎过筛后经搅拌机搅拌、压砖机成型和静置硬化工序，制成和现有的窑烧砖在硬度及抗拉和抗压性能基本相同的免烧砖，不仅节约了能源，而且有效利用了废弃的粉煤灰，由于不需要建砖窑所需大量投资，因此适于小企业就地取材就地制造。

Description

本发明涉及一种采用粉煤灰制造免烧砖的方法。
现有的砖都是在砖窑中烧制，使粘土在高温下固结而成，这种制砖方法不但需要大量的煤作燃料，而且生产周期长、砖窑投资大，不便于就地取材，就地制造。
本发明的目的是要提供一种不通过砖窑高温烧结制造砖的方法。
本发明提出的免烧砖采用粉煤灰为主要原料，一般火力发电厂有大量的粉煤灰，另以石膏和石灰作添加剂，添加剂起辅助凝固作用。在粉煤灰中加入3-5%的熟石膏，磨成细粉并通过4000-9000目细筛，再加入适量生石灰粉，经过混合搅拌、成型和硬化处理，就制成了成品砖。用这种方法制成的砖的硬度及抗拉和抗压强度与窑烧砖基本相同。
下面通过实施例对本发明做具体描述。
实施例：
1、原料配比：粉煤灰100份，石膏3～5份，生石灰粉15份，水30～40份
2、加工工艺：将石膏混入粉煤灰中，磨碎，通过4000～9000目细筛;加入生石灰粉，混合均匀;将水加入上述混合粉料中在搅拌机中搅拌均匀后送入压砖机;在压砖机上成型;静置硬化处理，初硬期8小时，中凝期24小时，后硬期18-28天，需要时可喷水，但要防止曝晒。

Claims (2)

1、一种制造免烧砖的方法，其特征在于以粉煤灰100份，石膏3～5份，生石灰15份和水30～40份为原料，将水和粉料混合在搅拌机中搅拌均匀，送制砖机压制成型，然后静置硬化。
2、根据权利要求1所述的制造免烧砖的方法，其特征在于所述粉煤灰和石膏要经过4000-9000目细筛。
CN89107021A 1989-09-15 1989-09-15 粉煤灰制免烧砖的方法 Pending CN1039789A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN89107021A CN1039789A (zh) 1989-09-15 1989-09-15 粉煤灰制免烧砖的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN89107021A CN1039789A (zh) 1989-09-15 1989-09-15 粉煤灰制免烧砖的方法

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CN1039789A true CN1039789A (zh) 1990-02-21

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CN89107021A Pending CN1039789A (zh) 1989-09-15 1989-09-15 粉煤灰制免烧砖的方法

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CN (1) CN1039789A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048966C (zh) * 1995-01-25 2000-02-02 毛德华 一种轻质粉煤灰墙体材料的制备方法
CN102423903A (zh) * 2011-09-22 2012-04-25 汕头大学 固体废渣免烧砖的生产方法
CN105837147A (zh) * 2016-03-25 2016-08-10 刘建荣 铸造旧砂复合砖及其制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048966C (zh) * 1995-01-25 2000-02-02 毛德华 一种轻质粉煤灰墙体材料的制备方法
CN102423903A (zh) * 2011-09-22 2012-04-25 汕头大学 固体废渣免烧砖的生产方法
CN105837147A (zh) * 2016-03-25 2016-08-10 刘建荣 铸造旧砂复合砖及其制备方法

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