SU1153544A1 - Coke dry quenching apparatus - Google Patents

Description

The invention relates to equipment for the coke industry, namely, devices for dry quenching of coke.

The purpose of the invention is the reduction of coke intoxication. - '

Figure 1 shows the device in longitudinal section, figure 2 - section along aa in figure 1.

The device for dry quenching of coke contains a vertical body 1,

2

between the walls of the housing and the prechamber, characterized in that, in order to reduce coke burnout, it is provided with a vertical gas-tight annular screen fixed under the pre-chamber and above the inlet openings of the cooling gas outlet channel, and heat exchange elements are located inside the annular screen.

2. The device is pop.1, in order to intensify the process, the heat exchange elements are installed in several rows one above the other and are offset from the heat exchange elements of the previous row by half a step between the elements, and the screen is made cooled.

3. Device Popp.1 and 2, differing from the fact that, in order to prevent coke from hanging, '· heat exchange elements of one row

and adjacent rows are set relative to each other at a distance exceeding five times the size of maximum coke pieces.

Zi „„ I53544

located in the upper part of the prechamber 2 with the means of 3 loads of hot coke and under the prechamber chamber 4 quenching.

In the lower part of the quenching chamber 4, means 5 for supplying cooling gas and means 6 for unloading cooled coke are located.

Between the walls of the housing 1 and the pre-chamber 2 there is an annular channel 7 for draining the cooling gg!

extinguishing measures 4 with inlet openings 8 and exhaust port 9 "

Under the prechamber 2 and above the inlets 8 of the channel 7 for cooling gas exhaust, a circular gas-tight cooled screen 10 is fixed, 'inside which two rows of vertical heat-exchange elements 11 are placed radially one above the other. At the same time, the heat exchange elements 11 of one row are offset half of the step is between the elements, and the distance b between the elements of adjacent rows in height and the smallest distance b between the elements of one row exceeds five times the size of the maximum pieces sa.

The device works as follows.

Red-hot coke from a coke oven having a temperature of 1000-1050 ^ 6 "through the means 3 loads is periodically fed into the prechamber 2, from which under the action of its own weight enters the quenching chamber 4 as it is removed from it through the means 6 to unload the cooled coke. At the same time, countercurrent through the means 5 is supplied to the quenching chamber 4 cooling gas.

Passing through the quenching chamber 4, the red-hot coke first releases part of the heat to the cooled heat exchange elements 11 and the gas-tight screen 10, which are cha5553544 4

This allows the coke to be cooled to a temperature, the value of which is lower than the temperature of its active combustion without contact with the cooling gas, and thereby reduce the waste at this stage. Moreover, since the heat exchange elements 10 11 are installed in two rows one above the other, and are displaced relative to the elements of the adjacent row, and the screen 10 is cooled, the cooling process proceeds quite intensively. To prevent coke hang-up, heat exchange elements 11 of one row and an adjacent row are set relative to each other at a distance exceeding fivefold 20 size of maximum coke pieces.

Then the partially cooled coke, lowering below, is finally cooled in the lower part of the extinguishing chamber 4 as a result of the interaction of the coke with the cooling gas during their countercurrent motion. The gas coming from the means 5 cools the coke and passes through the inlet 8 to the annular channel 7, the exhaust port 9 30 and then to the recovery boiler or other heat-using equipment. coke, because the combustible components of the cooling gas interact with coke, the temperature of the coke is lower than the temperature of its active combustion.

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Claims (1)

1. DEVICE FOR DRY COKE EXTINGUISHING COKE, including a vertical body, pre-chamber with means for coke loading, located in the upper part of the body, the extinguishing chamber installed under the pre-chamber, the means for supplying cooling gas, located in the lower part of the extinguishing chamber, vertical heat exchange elements installed radially in the upper part of the extinguishing chamber, the cooling gas discharge channel from the extinguishing chamber, made