JPS591591A - Adjustment of gas component in prechamber of dry coke quenching equipment - Google Patents

Abstract

PURPOSE:To prevent explosion, combustion, etc. of gas which tend to occur at the time of opening an oven cover, by introducing gas for component adjustment into a prechamber according to the amounts of combustible components in the gas within the prechamber. CONSTITUTION:An inlet pipe 15 for component adjusting gas (air and/or nitrogen) is connected to a prechamber 2 of a cooling tower 1 (3 is a cooling chamber) and a component analyzer 18 is connected to it via a gas sampling tube 17. The gas in the prechamber 2 is analyzed with the analyzer 18 and when the amount of combustible components (CO, H2) has reached the predetermined value, a flow rate controlling valve 14 is adjusted with controlling units 19 and 20 to introduce the adjusting gas through a pipe 15 so that the amount of combustible components in the gas within the prechamber 2 may be maintained below the predetermined value and the gas component within the prechamber 2 may be kept below the explosion limit.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for adjusting gas components in a dry extinguishing equipment for red-hot coke.

Inside the buri chamber formed at the top of the cooling tower, C01
Gas with a component equivalent to coke oven dregs containing a large amount of H2 etc. will be stored, and this gas has a high calorific value and a high temperature of about 1000"C. If the furnace lid is opened for this reason, it may come in contact with the atmosphere around the furnace mouth and cause combustion or explosion, which poses a safety problem for the workers, and may also have an adverse effect on surrounding equipment due to fire or explosion. It had various problems, such as noise and visual problems caused by flames.

Therefore, as a method to adjust the gas components in the yellowtail chamber, the gas inside the yellowtail chamber is diffused into the atmosphere from a ten-piece discharge pipe installed in the yellowtail chamber, and the circulating gas (component 1I
11) is introduced into the yellowtail chamber.

However, with this method, a large amount of high-temperature, high-calorie gas is released into the atmosphere, which poses thermoeconomic problems, and dust-containing gas is released directly into the atmosphere, causing dust pollution. For this reason, there have been problems such as the need for a large-sized combustion device to burn the emitted scum.

The present invention was made to solve the problems of the conventional method, and by introducing a gas for component 8111 consisting of air, N, gas, or a mixture thereof into the pre-chamber, the gas inside the pre-chamber shaft is reduced. The coke dry type is designed to prevent the explosion and combustion of the gas in the brie chamber shaft when the furnace lid is opened, as well as to effectively use the thermal energy of the gas in the brie chamber shaft and prevent pollution problems due to dissipation. This invention relates to a method for adjusting gas components in a prechamber in fire extinguishing equipment.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows an example of coke dry extinguishing equipment to which the method of the present invention is applied. 5 is a boiler, 6 is a cyclone, and 7 is a circulation fan. Circulating gas is introduced into the cooling tower 1 to cool the red-hot coke in the cooling chamber 3, and the mi gas heated by the cooling is sent to the boiler 5. This constitutes a circulating gas flow path that conducts heat recovery. In addition, 8 in the figure indicates the cooling tower l in the circulating gas flow path.
A partial dispersion pipe 9 installed at the gas inlet side position to adjust the pressure inside the pre-chamber 2 is installed in the soil part of the cooling tower 1, and by removing the furnace cover 10, it can be inserted into the inside of the cooling tower 1. Coke conveying equipment includes a coke packet 11 for conveying and charging red-hot coke, 12 is an upper dispersion pipe, and 13 is a dilution fan for introducing air provided in the dust remover 4.

In the cooling tower 1 of the coke dry extinguishing equipment having the above configuration, as shown in FIG. A component adjustment gas pipe 15 introduced through the pipe is connected. Further, the component 1iI11 gas regulating pipe 15 may be connected to a position where the red-hot coke 16 does not mix if# in the soil part of the pre-chamber 2. Further, a component analyzer] 8 is provided to take out the gas in the pre-chamber 2 through a sampling pipe 17 and analyze its components, and the amount of combustible gas components such as C01H2 detected by the component analyzer 18 is determined. A control device 19.20 is provided which opens the flow rate 1i11 regulating valve 14 accordingly.

The gas in the pre-chamber 2 has a high temperature of about 1000°0 and contains C01H2 as its main component. Therefore, in such a high temperature atmosphere, CD and H2 are 0. If there is, it will burn immediately.

Furthermore, the second part of the pre-chamber 2 is filled with light components such as Co and H, so when the furnace lid is opened, it reacts with Of in the air and burns, and if the concentration of CO1H3 is particularly high, the combustion will be rapid. An explosion occurs because of this.

For this reason, the component analyzer 18 analyzes the components of the gas in the pre-chamber 2, and when the amount % of combustible components Go, H, in the gas reaches a certain set value, the control device 19.20 The flow rate adjustment valve 14 is adjusted to introduce the component adjustment gas, and the CO and CO in the gas in the prechamber 2 are
Control is performed so that each or the total amount of H, is maintained at a certain set value or within a range below a certain set value. Alternatively, when each or the total amount of C01H2 in the gas in the prechamber 2 exceeds a certain set value, the flow rate regulating valve 14 is opened. At this time, when the component adjustment gas is air, the CO1H2 is burned and diluted, and when N2 gas is used, the component is simply diluted.
Tll adjustment is performed.

Furthermore, the increase in C01H2 in the gas components in the pre-chamber 2 is due to the volatile matter brought in by the red-hot coke, so the increase in the C01H3 component has a causal relationship with the addition of coke. For this reason, since the injection of coke can be known in advance by taking out the coke from the coke oven, depending on the time schedule, it can be carried out by manual valve operation such as introduction of composition adjustment gas, or by the signal of the coke transport equipment 9. By turning on and off according to the sequence (sequence), the manual operation described in (2) can be performed automatically.

Furthermore, the component adjustment gas pipe 15 is connected to the pre-chamber 2.
By connecting to Shibe, component adjustment gas is added at the same time as coke is added, and the approximate composition i11 is added at the same time as coke is added. It is also possible to perform adjustments.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and that the component 1111 gas pipes may be provided separately for air and N2 gas. A flow rate regulating valve may be provided in series with the valve for adjusting the gas flow rate, and various changes may be made within the scope of the present invention.
Of course, etc.

The method for adjusting the waste component in the shaft of the brie chamber in the coke dry extinguishing equipment of the present invention described above can produce excellent effects such as blowing.

(1) The composition of the gas in the shaft of the Buri chamber is adjusted by introducing a gas for adjusting the composition consisting of air, N2 gas, or a mixture thereof into the Buri chamber. It is possible to adjust the composition of the wI ring gas without introducing it into the buri chamber by releasing it into the atmosphere from the tube.

(j) Since a large amount of gas in the shaft of the brie chamber is not dissipated into the atmosphere as in the case where this device is not installed, the energy of the dissipated residue can be used effectively.

The pollution problem caused by the dispersion of dust-containing gas can be solved.

It can be easily carried out using a simple device.

(v) By analyzing the components of the gas in the pre-chamber shaft and introducing a gas for composition adjustment into the pre-chamber based on the amount of combustible components in the gas component, the composition of the gas in the pre-chamber shaft can be reliably and automatically adjusted. It can be done.

(It is possible to further simplify the implementation configuration by introducing the component adjustment gas into the VD brie chamber based on the time schedule of coke injection.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of coke dry extinguishing equipment to which the method of the present invention is applied, and FIG. 2 is an explanatory diagram showing an example of the present invention. 1 is a cooling tower, 2 is a buri chamber, 3 is a cooling room, 4 is a dust remover, 5 is a boiler, 6 is a cyclone, 7 is a circulation fan,
Reference numeral 9 indicates coke transport equipment, 1o a furnace lid, 14 a flow rate adjustment valve, 15 a component adjustment gas pipe, 17 a sampling pipe, 18 a component analyzer, and 19.20 a control device. 1 person for patent Ishikawajima Harima Heavy Industries Co., Ltd. 663

Claims (1)

[Claims] ■) When adjusting the composition of the gas in the Buri chamber by introducing a component adjustment gas into the Buri chamber, the components of the gas in the shaft of the Buri chamber are analyzed, and the amount of combustible components in the gas component is analyzed. A method for adjusting gas components in a brie chamber shaft in coke dry extinguishing equipment, characterized by introducing the component 1I11 preparation gas based on the following. 2) Coke dry extinguishing characterized by introducing the component adjusting gas into the yellowtail chamber based on the time schedule of coke injection when adjusting the composition of the gas in the yellowtail chamber by introducing the component adjusting residue into the yellowtail chamber. A method for adjusting gas components in the prechamber shaft in equipment.