CN1094114C - Haydite sluge from Dianchi Lake and its preparation - Google Patents

Abstract

The present invention relates to haydite made of sluge from Dianchi Lake and a preparation method thereof. The haydite of the present invention uses sludge accumulated in the Dianchi lake for years in Yunnan province of China as raw materials and is obtained by high-temperature calcining and cooling. The haydite can be calcined into super-light haydite, structural haydite and high-strength haydite in three grades. The present invention has the advantages of simple technology, easy control and low cost; the present invention is favorable for the treatment of 'three waste' and accords with industrial policies. The produced haydite has multiple functions of light weight, high strength, heat preservation, thermal insulation, shock resistance, fire prevention, moisture resistance, sound absorption and reduction, etc.; the present invention can be used as carriers for soilless culture and filtering media for water treatment and has a wide application range for construction.

Description

Haydite sluge from Dianchi Lake and preparation method

The present invention relates to a kind of haydite sluge from Dianchi Lake and preparation method.

Chinese patent application CN1146436A discloses a kind of " light ceramisite and preparation method ", this application provides can protect light ceramisite that the table soil in the layer overburden of colliery burns till and preparation method thereof with China, the prescription that this invention provides has two kinds: a kind of is that to adopt 100% loess, another kind be to adopt the loess of the laterite of 10-50% and 50-90% to fire to form, can be made into the haydite that unit weight is the 200-800 level, its table soil block shape is more, must be through break process, so homogenizing is more time-consuming, cost is higher.

The objective of the invention is to overcome the deficiencies in the prior art, providing in the lake, a kind of employing China Dian Chi all the year round, the cumulative sludge roasting forms Superlight ceramsites, structure haydite and three other haydites of level of high-strength ceramic granule, remarkable economic efficiency and social benefit are arranged, meet the industry effect of the relevant recovery of three wastess(waste gas,waste water and industrial residue) of country.

Haydite sluge from Dianchi Lake of the present invention is to adopt the sludge roasting in the lake, Dian Chi, Yunnan Province of China province Kunming to form.

This haydite sluge from Dianchi Lake can be fired with 100% sluge from Dianchi Lake and form unit weight 300-500 kilograms per cubic meter; Also can fire and form unit weight 500-800 kilograms per cubic meter with the comprehensive soil sample red, yellow, that black earth is made into of the sluge from Dianchi Lake of 40-90%, 10-60%; Can also fire with the pure laterite of the sluge from Dianchi Lake of 60-80%, 20-40% and form unit weight 800-1100 kilograms per cubic meter.

The preparation method of haydite sluge from Dianchi Lake of the present invention adopts following steps:

A, with soil sample by the proportioning combination treatment, controlling wherein, moisture is 7-15%;

B, soil sample enter and enter roasting kiln after the pan-pelletizer balling-up and fire, and maturing temperature 1201-1400 ℃, firing time is 40-55 minute;

Enter cold fortune machine cooling behind the haydite kiln discharge after c, the roasting, behind minute particle diameter, be delivered to the finished product field.

The raw material of haydite sluge from Dianchi Lake of the present invention be with in the lake, China Dian Chi all the year round the cumulative firing sludge form, thereby it is with low cost, help the improvement of " three wastes ", its prescription is simple, because sluge from Dianchi Lake is relatively finer and smoother, so do not need fragmentation with sluge from Dianchi Lake, mix and homogenizing is handled than being easier to, thereby operation simply, save time; Not only can be fired into the structure haydite that Superlight ceramsites that unit weight is the 300-500 kilograms per cubic meter and unit weight are the 500-800 kilograms per cubic meter, can also burn out the high-strength ceramic granule that unit weight is the 800-1100 kilograms per cubic meter.

Embodiment:

Economizing in the lake, Dian Chi, Kunming Yunnan Province of China all the year round, cumulative mud is deposited in the independent former feed bin; The laterite on ground such as deserted mountain, barren hill, loess, black earth and some roach mixed make comprehensive soil sample, fully slaking is 1 month, is deposited in the independent batch bin.

(1) be main raw material with 100% sluge from Dianchi Lake, with the soil sample drying, combination treatment, the control water ratio is 7-15%, is delivered to the pan-pelletizer balling-up with Pi Yunji, advancing roasting kiln then fires, maturing temperature 1210-1300 ℃, firing time is 40-50 minute, behind the haydite kiln discharge after burning till, be delivered to the finished product field by cylinder cooler, can make the Superlight ceramsites of 300-500 kilograms per cubic meter.

(2) be equipped with the comprehensive soil sample of red, yellow, the black earth preparation of 20-40% with the sluge from Dianchi Lake of 60-80%, combination treatment, water ratio is controlled to be 7-14%, be delivered to the pan-pelletizer balling-up with Pi Yunji, advance roasting kiln then and fire, maturing temperature 1250-1320 ℃, firing time is 40-50 minute, behind the haydite kiln discharge after burning till, be delivered to the finished product field, can make the structure haydite of 500-800 kilograms per cubic meter by cylinder cooler.

(3) join the comprehensive soil sample of red, yellow, the black earth preparation of 30-40% with the sluge from Dianchi Lake of 60-70%, combination treatment, water ratio is controlled to be 7-14%, be delivered to the pan-pelletizer balling-up with Pi Yunji, advance roasting kiln then and fire, maturing temperature 1300-1400 ℃, firing time is 40-50 minute, behind the haydite kiln discharge after burning till, be delivered to the finished product field, can make the high-strength ceramic granule of 800-1100 level by cylinder cooler.

Claims (4)

1, a kind of haydite sluge from Dianchi Lake is characterized in that: the firing sludge in the lake, Dian Chi, Yunnan Province of China province Kunming of employing 100% forms unit weight 300-500 kilograms per cubic meter.

2, a kind of haydite sluge from Dianchi Lake is characterized in that: fire with the comprehensive soil sample red, yellow, that black earth is made into of the mud in the lake, Dian Chi, Kunming, Yunnan Province of 40-90%, 10-60% and form unit weight 500-800 kilograms per cubic meter.

3, a kind of haydite sluge from Dianchi Lake is characterized in that: the mud in the lake, Dian Chi, Kunming, Yunnan Province of employing 60-80%, the pure laterite of 20-40% are fired and are formed unit weight 800-1100 kilograms per cubic meter.

4, the preparation method of root a tree name claim 1,2 or 3 haydite sluge from Dianchi Lake is characterized in that adopting following steps:

A, with soil sample by the proportioning combination treatment, controlling wherein, moisture is 7-15%;

B, soil sample enter and enter roasting kiln after the pan-pelletizer balling-up and fire, and maturing temperature 1201-1400 ℃, firing time is 40-55 minute;

Enter cold fortune machine cooling behind the haydite kiln discharge after c, the roasting, behind minute particle diameter, be delivered to the finished product field.