Rotary kiln control system
A control system and rotary kiln technology, applied in the direction of rotary drum furnace, furnace, lighting and heating equipment, etc., can solve problems such as uncontrollable, rotary kiln reliability, safety and effectiveness limitations
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Embodiment 1
[0048] The embodiment of the present invention proposes a rotary kiln control system. In order to clarify its control object, the working characteristics of the rotary kiln will be briefly introduced below.
[0049] like figure 1 As shown, the rotary kiln is installed obliquely and the position of the kiln tail 101 is higher than the kiln head 105. The calcined materials are sent to the kiln tail 101 through conveying devices such as conveyor belts. The kiln speed motor 108 controls the rotation of the rotary kiln. Gravity enters the preheating zone 102, and the faster the rotating speed of the rotary kiln, the faster the material advances; on the contrary, the slower the rotating speed of the rotary kiln, the slower the material advances. The more materials that enter the rotary kiln, the more combustible volatile matter is provided, and more air is required to be fed by the secondary fan and the tertiary fan to help the volatile matter burn. The secondary air blower 106 sup...
Embodiment 2
[0057] The embodiment of the present invention proposes a preferred three-level diagnostic decision-making subsystem, which includes:
[0058] The pattern recognition module is used to use pattern recognition technology to establish a knowledge base and control rule set describing the relationship between the rotary kiln process parameters and the operating state according to the historical data of the rotary kiln calcination state;
[0059] An information processing module, configured to match the received parameters with the information in the knowledge base and the control rule set, and optimize the control amount according to the preset target operating state to obtain the optimized control amount;
[0060] The reasoning and judgment module is used to reason and judge whether the optimized control quantity can match the target operating state. If not, re-optimize the control quantity until it matches, and update the knowledge base according to the optimization scheme at the...
Embodiment 3
[0066] Embodiments of the present invention propose a preferred pattern recognition module, such as image 3 As shown, the pattern recognition module includes:
[0067] The historical data set establishing unit 301 is used to obtain historical data representing the calcination state of the rotary kiln within a preset time to form a historical data set. The relevant data of the calcination state of the rotary kiln are all stored in the database of the calcination process of the rotary kiln. When establishing the historical data set, the historical data representing the calcination state of the rotary kiln for 2-3 months are obtained from the database of the calcination process of the rotary kiln, including: Settling chamber temperature, settling chamber pressure, kiln head temperature, kiln head pressure, kiln tail temperature, kiln tail pressure, calcining zone temperature, cooler discharge temperature, residual oxygen, calcining zone kiln skin temperature, calcining zone leng...
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