Converter steel-making sludge pipeline conveying system and method
A technology for pipeline transportation and converter sludge, which is applied in pipeline systems, sludge treatment, chemical instruments and methods, etc., and can solve problems such as blockage and waste of resources
Inactive Publication Date: 2014-04-23
TIANJIN IRON & STEEL GRP
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Problems solved by technology
However, this treatment method also has many problems due to the resistance of the slurry in the pipeline to the easy-to-container channel, and blockages often occur. At the same time, because the converter sludge is treated as waste, resources are wasted
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[0022] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0023] see figure 1 , a converter sludge pipeline conveying system, including an inclined plate sedimentation tank, a delivery pump, a sludge tank, a sintered sludge tank, and a spray pump. The inclined plate sedimentation tank is connected to the sludge tank through a pipeline, and the sludge tank is connected to the sludge tank through a pipeline The sintered sludge tank is connected, and then connected with the sintered primary mixer through the spray pipe.
[0024] The structure of the sprinkler pipe is as figure 2 As shown, in order to fully mix the sintering mixture and steelmaking sludge, the front half of the cylinder 1 is provided with a spray pipe 2, which is suspended on the steel wire rope 4 through the clamp 6, and the upper ed...
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The invention relates to a converter steel-making sludge pipeline conveying system and method. The system comprises an inclined board settling pond, a sludge pond, a conveying pump, a sludge sintering tank and a spray pump. Waste water obtained through primary wet dedusting of a converter is concentrated into sludge with a concentration of 20%-25% through the inclined board settling pond, flows into the sludge pond, is then conveyed to the sludge sintering tank from the sludge pond via pipes through the conveying pump and is then sprayed into a mixing machine through the spray pump. The converter steel-making sludge pipeline conveying system conveys the sludge with the concentration of 20%-25% and a velocity not lower than 2.5 m / s to a sludge sintering buffer tank from a sludge processing room in a pipe conveying mode, continuously adds the converter sludge into sintering mixed materials in a sintering primary mixing machine through the convey pump and a sludge pump in a spraying mode and replaces production clean water with the sludge to achieve recycling.
Description
technical field [0001] The invention belongs to the technical field of steelmaking sludge utilization, and in particular relates to a pipeline conveying system and a conveying method for converter steelmaking sludge. Background technique [0002] In the process of converter steelmaking, a large amount of smoke and dust will be generated. Based on the annual steel output of 4 million tons, the amount of sludge (dry weight) per ton of steel is 18.55kg / t of steel, and the amount of dry sludge per year is 74,200 tons. If calculated according to the concentration of 20%, the amount of mud is 37.1×10 4 t / y, the average hourly volume is 46.84t / h. The generated sludge is generally transported by pipeline. Due to the advantages of less investment, low transportation cost, fast construction speed, less land occupation, and environmental protection, the pipeline transportation method has developed rapidly in recent decades. However, this treatment method also has many problems due t...
Claims
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IPC IPC(8): F17D1/14C02F11/00
Inventor 崔金丽孔祥喆陈玉鉴
Owner TIANJIN IRON & STEEL GRP