Control method and control system for dust removal fan of smelting furnace
A dust removal fan and control method technology, which is applied in pump control, mechanical equipment, machine/engine, etc., can solve the problem of inability to distinguish the smoke concentration between the feeding condition and the stirring condition, and the inability to describe the smoke situation and characteristic value of the melting furnace from a global perspective There are few types of problems, so as to avoid long-term high-speed operation, realize modularization and low power consumption, and save power.
Inactive Publication Date: 2015-03-18
ZHEJIANG UNIV
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However, the method extracts from the smoke image the feature values that reflect the smoke concentration in the furnace are too few to describe the actual smoke situation of the melting furnace globally. The brightness reaches the highest and the sharpness information in the furnace is 0, but the smoke concentration in the furnace is much higher than that of stirring when feeding, so only the brightness information and background sharpness information cannot distinguish between feeding and stirring conditions smog density
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[0055] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0056] The smelting of scrap copper is a batch process. It takes about 3 hours to smelt a furnace of copper material. It consists of Material Feeding Process (MFP), Melting Process (MP), Stirring Process (SP), and removal process. Slag (Deslagging Process, DP), testing furnace (Tapping Process, TP) and other working conditions, the smelting process conditions are repeated and disorderly. When feeding, organic waste and other sundries in scrap copper burn violently, producing a large amount of black smoke, and the flame brightness is very high. The organic waste in the miscellaneous copper is gradually burnt out, the copper material is melted, the smoke and flames produced gradually fade, and the fan speed can be gradually reduced. After the bottom copper ...
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The invention discloses a control method for a dust removal fan of a smelting furnace. Smoke concentration in the smelting furnace is detected accurately in real time by extracting energy feature, texture feature and motion feature in a smoke image and combining a partial supervision smoke concentration hierarchical model, so that the dust removal fan is controlled efficiently, a great quantity of heat in the furnace is released, electric energy of the smelting furnace is saved beneficially, smelting time is shortened, energy consumption of the dust removal fan is reduced, and the service life of the dust removal fan is prolonged; and a definite smoke concentration hierarchical model is established by sticking a smoke concentration grade label on a sample and by the aid of a PSFCM (partial supervision fuzzy c-means) algorithm, so that misjudgment rate of smoke concentration is decreased, and toxic smoke overflow due to too low of rotation speed of the fan is avoided. The invention further discloses a control system for realizing the method. The control system realizes modularization and low-consumption operation by the aid of an embedded DMSoC (digital media system-on-chip), so that equipment is more convenient to use and mount.
Description
technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a control method and a control system for a smelting furnace dust removal fan. Background technique [0002] Copper is a basic material and an important strategic material for the development of the national economy, national defense and military industry. Reducing energy consumption in the smelting process is of great strategic significance for improving my country's energy utilization efficiency. Scrap copper is a raw material that does not directly depend on the development of new copper mines. The power frequency smelting technology for its smelting and recycling has been greatly promoted in recent years. Accurately controlling the energy consumption of scrap copper in the process of power frequency smelting will greatly improve copper production efficiency. The resource recycling rate and resource utilization rate are in line with the country's development pla...
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IPC IPC(8): F04D27/00
Inventor 宋执环陈文伟李斌黄健
Owner ZHEJIANG UNIV