Sludge fire coal and its preparing process
A sludge and coal-burning technology, applied in the direction of fuel, solid fuel, bio-fuel, etc., can solve the problems of high cost, large amount of pulverized coal, poor coal saving effect, etc., achieve low cost, save resources and expenses, and facilitate the The effect of production and promotion
Inactive Publication Date: 2010-08-11
叶中华
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Problems solved by technology
Chinese patent 200610030071.1 discloses a high-concentration sludge coal slurry, but the sludge content in this patent is extremely small, and it is only used as an auxiliary preparation. The amount of coal powder is extremely large, and only 4% of coal is saved. Using this process to prepare coal, High cost, poor coal saving effect
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Abstract
The invention relates to sludge coal and a preparation method thereof. The components of the coal according to weight proportion are as follows: 80-120 shares of sludge, 14-120 shares of combustion-supporting agent, 7-60 shares of drying agent. The preparation of the sludge coal is divided into the following steps: sterilization, dehydration, mixing according to ratio, mould, drying, etc. By making good use of the sludge obtained from waste water treatment, the sludge coal of the invention not only saves source and cost for sludge continuously treatment, but also solves the problem of fuel bymaking sludge into coal to be used as fuel; the sludge coal of the invention saves coal consumption over 50 percent, requires little coal powder, has low preparation cost and is suitable for widely use. The preparation method of sludge coal of the invention has simple working procedure, needs simple equipment and is easy to be produced and generalized.
Description
technical field The invention relates to a method for preparing coal from sludge. Background technique At present, urban domestic sewage and enterprise wastewater are increasing, and the sludge generated in the wastewater is flooding, including wastewater treatment sludge and river sludge from sewage treatment plants, and wastewater sludge from chemical plants and other enterprises. The incineration of sludge causes air pollution again, and the burial of sludge wastes freight and takes up a lot of space, wastes resources and labor input, and causes adverse effects on the surrounding environment. The sludge in many places has reached the point where it cannot be treated. The environment Pollution directly threatens human health. The rational treatment and resource utilization of water-containing sludge is a major issue in sewage treatment and environmental protection. Among the various aqueous sludge treatment methods at present, the heat treatment method is the most prom...
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IPC IPC(8): C10L5/46
CPCY02E50/30Y02E50/10
Inventor 叶中华
Owner 叶中华