Complete plant for preparation of fuel coal-water-slurry by mixing domestic sludge and raw coal

Abstract

The invention discloses a complete plant for preparation of fuel coal-water-slurry by mixing domestic sludge and raw coal, which comprises a coal preparation set, a sludge preparation set and a slurryforming set; the coal preparation set comprises a high-efficient breaker and a silo and functions to break and weigh coal; the sludge preparation set comprises a sludge silo, a dual-axis slurry forming machine, a filter and a sludge fermenting tank and functions to break and ferment sludge; the slurry forming set comprises a coal-water-slurry ball mill, a buffer tank, a high-shearing intensifyingtank, a homogeneous curing tank and a slurry storage tank; the sludge and the coal material are mixed in the slurry forming set. The complete plant can mix the domestic sludge with the raw coal at acertain ratio and then prepare the combustible available mixed slurry according to the standard of commercial slurry; the complete plant solves the problem of land occupation by sludge and pollution and also creates certain economic benefit.

Description

technical field [0001] The invention relates to a complete set of equipment for preparing fuel coal-water slurry by mixing domestic sludge and raw coal. Background technique [0002] With the rapid development of domestic sewage treatment plants in my country, a large amount of domestic sludge has been brought in, which must be transported to landfills for treatment. Waste has caused certain economic pressure and land use index pressure on local government finances. The odor and bacterial growth caused by the degradation of domestic sludge will also cause certain pollution to the environment. Domestic sludge has a calorific value of 1500-1800kcal / kg. If it is used scientifically and comprehensively, it will not only save costs, but also solve environmental and land problems. However, domestic sludge itself cannot be burned, so its calorific value is also difficult to use. . Contents of the invention [0003] The invention relates to a complete set of equipment for prepari...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of domestic sewage treatment plants in my country, a large amount of domestic sludge has been brought in, which must be transported to landfills for treatment. Waste has caused a certain amount of economic pressure on the local government's finances and pressure on land use indicators. The odor and bacterial growth caused by the degradation of domestic sludge will also cause certain pollution to the environment.

Domestic sludge has a calorific value of 1500-1800kcal / kg. If it is used scientifically and comprehensively, it will not only save costs, but also solve environmental and land problems. However, domestic sludge itself cannot be burned, so its calorific value is also difficult to use.

Images