Power saving control method and device for rotary kiln
A technology of power-saving control and rotary kiln, which is applied in the field of metallurgy, can solve problems such as unfavorable energy conservation and environmental protection, increase production costs, and waste of electric energy, and achieve the effects of optimizing production, saving energy, and reducing costs
Inactive Publication Date: 2017-08-11
ZHONGYE-CHANGTIAN INT ENG CO LTD
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However, this rough method may cause only part of the electric energy to be effectively used, resulting in a waste of electric energy, increasing production costs, and not conducive to energy conservation and environmental protection.
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[0106] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0107] figure 1 It is a flow chart of a method for controlling power saving of a rotary kiln according to an exemplary embodiment. As an example the method can be used in the production of iron ore oxide pellets using the grate-rotary kiln method, see figure 2 as shown, figure 2 It is a schematic diagram of equipment for the grate-rotary kiln oxidation pellet process, and the materials will...
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The embodiment of the invention provides a power saving control method and device for a rotary kiln. The method comprises the following steps: acquiring the mass G1 of a rotary kiln body; acquiring the mass Gm of the real-time materials in the rotary kiln; according to the mass of the rotary kiln body and the mass of the materials, acquiring the total mass G0 of the rotary kiln; acquiring the power N2 consumed for overcoming the friction of a bearing according to the total mass of the rotary kiln; acquiring the effective power N1 for turning the materials; acquiring the main transmission and operation consumption power P of the rotary kiln according to N1 and N2; and controlling the output power of a motor according to P. According to the power saving control method and device for the rotary kiln, the power required by the motor of the rotary kiln is calculated in a soft measurement mode according to the current processing amount of the rotary kiln, then the output power of the motor of the rotary kiln is adjusted through feedback control, the power is controlled within a proper range, and therefore waste of electric energy is avoided, the power consumption of the rotary kiln is reduced, and the purposes of saving energy, optimizing production and reducing the cost are achieved.
Description
technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method and device for power-saving control of a rotary kiln. Background technique [0002] Rotary kiln is a high-temperature kiln that can rotate continuously. It is a thermal equipment for drying and roasting materials. It is widely used in the process of non-ferrous smelting, iron and steel metallurgy, chemical industry, cement, alumina, building materials, refractory materials and other industries. . When the material enters the rotary kiln, the rotary kiln sinters the material through its own rotation and high-temperature roasting. During the sintering process, the motor drives the conveyor belt to transport the material from one end of the rotary kiln to the other, consuming a certain amount of electrical energy. [0003] The inventor found in the process of realizing the present invention that in the prior art, due to the lack of effective power consumption control m...
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Login to View More IPC IPC(8): F27B7/42
CPCF27B7/42
Inventor 曾辉李宗平
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD