DE1915225A1 - Process for regulating the uniformity of the heating or firing process in a rotary furnace with an upstream heat transmitter - Google Patents

Description

Pierovske strojirny, iiarodni podnik, trerον

■ Czechoslovakia

Method uu.a Hegeln the above-leichfö'rmigkeit of Erwärrroiags- _ "03 ^t .7. Erennvorganges in a rotation of s with pre scarf i

tetem heat mediator

The invention relates to a method of controlling the consistency of the Erwermun ^ sbaw. Srennvorganges in endowment furnace "with upstream heat agent during the processing of granular and fine-grained material, before alone ICaterial in dera during üreru: entering sine stronger end0thermische reaction at higher i'eüiperaturen, such as in ICaIketein, ^{Zementrohntoff.} S £. and the same.

The 3-1'eicliförmi _ö l ': after the heating or burning process dei. Firing unit is one of the main conditions of economic operation and of maintaining a high quality of the product. At present, the disturbed gristle is usually balanced out between the Y / arm supply and the amount of raw material by changing the fuel supply

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BATH ORIGINAL

Or and the ^ eiae ^ ensr 'Je ^ iperatur cles materials in the Burning zone or e.üf reason for determining the quality "Maintained the product as it exits the Cfen. The main disadvantage of this method is that frequent change in heat output compared to the instantaneous Stand. Since the performance fluctuates around a certain optimal value, irregularities arise the heating or burning process, which is unfavorable in economic efficiency and in the quality of the products shows. Another disadvantage is that there are rules. by changing the fuel supply the relatively complicated and adjusted to an optimal course Firing process is disturbed and it is necessary to complete a To regulate a number of other values, such as the length of the air required for burning, the shape of the flame and the same. The time between the occurrence of the deviation in the raw material supply in the rotary kiln and its detection in the firing zone is the Feed speed of the material in the rotary piston proportional and is therefore relatively long. The delay between the occurrence of the discrepancy tind the possible intervention in the burning process is therefore relatively large, which is also an unfavorable influence has on the operational uniformity.

The invention avoids these itfachteile and creates a possibility to quickly control the burn process without changing the burner setting or the To achieve fuel supply.

The invention consists in that, depending on the

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Deviation from a constant value of the temperature of the gases at their exit from the furnace, the amount of raw material fed into the rotary furnace εo. is set that this temperature of the gases is at a constant level with minimal achievable deviations from this Yfert be kept.

According to the invention it is so possible, the fuel supply and to keep all values related to an optimal firing process constant. It is so possible a uniform burning process "at optimal Achieve performance of the arrangement, resulting in a higher average performance on a unit of time,, lower Production costs and a higher quality of the product be achieved. Since the predominant heat consumption takes place in the rotary furnace and the speed of the Gases is high, so that the delay between the occurrence of a malfunction and its plague position is great klein ijst, this method enables an effective and quick intervention in the heating or firing process at the beginning of the deviation. In addition, regulating the process is easier and clearer, because it is going to achieve a correct and uniform Burning only a value set under conditions' which are established by simple means and can be controlled.

If the combustion process is disturbed, the control loop that controls the burning of the fuel is activated fes related values at a constant level enables interruption.

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Claims (1)

1315225 Claims Process for equalizing the uniformity of the heat process in a notation furnace with an upstream heat mediator,
characterized, that depending on the deviation from a constant Fourth, the temperature of the gases at their exit from the rotary furnace, the supply of raw materials is stopped being, by correcting the raw material intake Compensation for this deviation is generated. _β method for sailing according to claim 1, characterized in that that those related to the burning of the fuel Fourth control circuit, which maintains a constant level, is interrupted in the event of a fault in the firing process. 009835/1096