本文選題：高摻粉煤灰 + 煤矸石��； 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：利用煤矸石、粉煤灰制磚，既能節(jié)省能源，減少占地，變廢為寶，保護(hù)環(huán)境，又具有較高的經(jīng)濟(jì)價(jià)值。論文通過分析煤矸石、粉煤灰的綜合利用途徑及研究現(xiàn)狀，得出煤矸石、粉煤灰制磚存在的主要問題。通過研究所在地區(qū)的自然環(huán)境、軟環(huán)境及市場(chǎng)受歡迎程度，確定了所在地區(qū)發(fā)展循環(huán)經(jīng)濟(jì)型建材行業(yè)的環(huán)境條件。對(duì)主要供料源的煤矸石、粉煤灰進(jìn)行取樣，根據(jù)現(xiàn)有理論體系，分別測(cè)定鈣含量、硫含量等，測(cè)定了基礎(chǔ)原料的可塑指數(shù)等指標(biāo)，對(duì)現(xiàn)有材料制磚的適用度給予客觀評(píng)價(jià)。采用實(shí)驗(yàn)方法對(duì)不同配比、不同粒徑、不同陳化時(shí)間、不同摻水率、不同干燥時(shí)間、不同燒結(jié)時(shí)間和溫度下成磚硬度、表面光潔度、燒結(jié)損壞率等指標(biāo)進(jìn)行多組平行實(shí)驗(yàn)，得出制備新型空心磚的最優(yōu)工藝參數(shù)： （1）煤矸石燒結(jié)空心磚的最佳配方組成為：煤矸石50%、粉煤灰50%。 （2）煤矸石原料的最佳顆粒級(jí)配為：小于0.05mm占33～52%；0.05～1.3mm占22～66%；1.3～2mm占小于30%；煤矸石原料最佳陳化時(shí)間為3～4天；干燥介質(zhì)的溫度范圍110～155℃，流速1.5～4.Sm/s；干燥周期12～48小時(shí)。煤矸石燒結(jié)空心磚的最佳燒成溫度為1050℃，燒成周期為47～52小時(shí)，，保溫4～8小時(shí)。
[Abstract]:Making brick with coal gangue and fly ash can save energy, reduce land occupation, turn waste into treasure, protect environment, and have high economic value. Based on the analysis of the comprehensive utilization of coal gangue and fly ash, the main problems in making brick with coal gangue and fly ash are obtained. Based on the natural environment, soft environment and the popularity of the market in the region, the environmental conditions for the development of circular economy building materials industry in the region are determined. The coal gangue and fly ash from the main feed sources were sampled. According to the existing theoretical system, the contents of calcium and sulfur were determined, and the plasticized index of the basic raw materials were measured, and the applicability of the existing materials for making bricks was evaluated objectively. Several parallel experiments were carried out with different ratio, particle size, aging time, water blending rate, drying time, sintered time and temperature for brick hardness, surface finish, sintering damage rate and so on, by means of the experimental method, the experiments were carried out in different proportion, different particle size, different aging time, different water blending rate, different drying time, different sintering time and temperature. The optimum technological parameters for preparing new hollow brick are as follows: (1) the optimum composition of coal gangue sintered hollow brick is as follows: coal gangue 50, fly ash 50. (2) the best gradation of coal gangue raw material is: less than 0.05mm: 33% 52%; The optimum aging time of coal gangue raw material is 3 ~ 4 days, the temperature range of drying medium is 110 ~ 155 鈩

本文編號(hào)：2092849