SU1535880A1 - Installation for wet quenching of coke - Google Patents

Abstract

The invention relates to coke chemistry, in particular to the design of installations for wet quenching of coke. The purpose of the invention is to reduce harmful emissions into the atmosphere in the form of liquid droplets and coke dust. The coke wet quenching plant comprises a quenching tower with a rectangular casing, a chimney and a partition located at the base of the chimney, an irrigation device located under the partition, a drip catcher located in the chimney, and a quencher car. New in the installation is the placement of irrigation nozzles in the confusers of a battery of vertical Venturi tubes, diffusers of which are located above the quenching car, and the implementation of partitions in the form of a battery of truncated rectangular pyramidal shells, the truncated vertices of which are directed towards the confusor of the Venturi tubes, and equal to the number of Venturi tubes, and the vertical axes of the pyramidal shells coincide with the axes of the corresponding Venturi tubes. 2 Il.

Description

The invention relates to the coking industry, namely to the design of a device for wet quenching of coke, and can be used in other industries to reduce emissions during cooling of bulk and bulk materials by liquid.

The aim of the invention is to reduce harmful emissions into the atmosphere.

Figure 1 shows an installation for wet quenching of coke, a cross-section; figure 2 - section aa in figure 1,

The coke wet quenching unit comprises a quenching tower which consists of a rectangular body 1 with an entrance opening 2 and an exit opening 3, a rectangular exhaust pipe 4 and a partition 5 which is attached to the base of the exhaust pipe 4 and is made in the form of a battery of truncated right Molecular pyramidal shells. The truncated vertices of the pyramidal shells of the partition 5 are directed toward the convergers 6 of a battery of vertical rectangular Venturi tubes, diffusers 7 of which are located

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They are mounted above the quenching car 8. The battery of vertical rectangular Venturi tubes is mounted on supporting beams 9 which are attached to the body 1 of the quenching tower. The number of rectangular pyramidal shells of the partition 5 is equal to the number of Venturi tubes, and the vertical axes of the pyramidal shells of the partition 5 coincide with the axes of the corresponding Venturi tubes. The spray nozzles 10 of the irrigation device 11 are located in the confusor of 6 Venturi tubes. In the chimney

4 is located the droplet separator 12, which is made in the form of parallel installed Ј. - shaped plates forming channels for the vapor to escape. The number of Venturi tubes, and hence the number of rectangular pyramidal shells of the partition

5 is determined depending on the consumption of water supplied to quenching coke and the area of the quenching car

in terms of area occupied by coke. In this case, venturi pipe diffusers must completely cover the surface occupied by the hot coke. Venturi tubes are made of heat-resistant sheet steel. To move the quenching car 8, rail rails 13 are installed on the bottom of the body 1 of the tower of the fire extinguishing. The body 1 in the lower part has a channel 14 for removing water along with the coke dust (sludge) moistened by it.

Installation for wet coke quenching works as follows

The quenching car 8 with hot coke electric locomotive on the rails 13 through the opening 2 of the housing 1 enters the quenching tower. Water to extinguish coke from the pipes of the irrigation device 11 goes to the nozzles 10, which are located in the confusors.

6 vertical rectangular venturi tubes. Jets of sprayed water pass through the diffusers of the 7 Venturi tubes, which direct them to the surface of the hot coke in the quenching car 8. The vapors formed during quenching of the coke rise in the gap between the vertical walls of the quenching tower housing 1 and the Venturi tube battery, passing through the gap between Confusori 6 Venturi tubes and a battery of rectangular pyramidal shells of the partition 5 and through the holes in the 358804

From the tops of the pyramidal shells of the partition 5, the vapors enter the exhaust pipe 4, pass through the droplet 5 separator 12 and are released into the atmosphere. Coke dust and liquid droplets when moving in the gap between confusors 6 and pyramidal shells of the partition 5 when changing

The direction of the steam flow is separated from the vapor, enters the vacuum zone of the confuser 6, which occurs due to the ejection effect of the Venturi tubes and is captured by a jet of spray water supplied to extinguish the coke. At the same time, the amount of harmful emissions in the form of liquid droplets and coke dust is significantly reduced. The number of support beams 9 for the installation of the Venturi tubes is chosen such that they do not impede the movement of vapors in the gap between the walls of the body of the quenching tower 1 and the Venturi tubes. Water jet moving in diffusers

25 prevents upward movement of vapor through diffusers, i.e. at the shortest distance to the exhaust pipe. Water with impurities of coke dust (sludge) flowing from the quenching car 8 is removed for clarification through a channel 14 made in the lower part of the body 1 of the quenching tower. If it is necessary to bring the quenching car 8 to the repair site, an opening 3 is used. When the installation of a wet truck is working

The coke hole aperture 3 is closed.

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When placing the battery of the Venturi tubes under the partition made 0 in the form of a battery of truncated rectangular pyramidal shells, the ejection effect, i.e., is placed with the spray nozzles in the confluxes of the Venturi tubes. The creation of a rarefaction zone only in the confusors of the Venturi tubes, which ensures that the venturi tubes capture coke dust and liquid droplets, prevents the cleaned vapor from entering the exhaust pipe through the openings in the truncated tops of the pyramidal walls of the partition wall. The maximum effect of cleaning the coke dust vapor and liquid drops is achieved when the number of pyramidal shells of the partition wall and the Venturi tubes are equal and their axes are combined.

The amount of harmful emissions into the atmosphere is significantly reduced,

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which contributes to the creation of healthy working conditions in the coking industry. Reducing the droplet emissions of aggressive liquid from coke quenching facilities significantly reduces the cost of anti-corrosion equipment located in the wet coke quencher plant area, which blocks a slight increase in the capital cost of the proposed coke quencher quencher.

Claims (1)

Invention Formula A coke wet quenching plant comprising a quenching tower consisting of a rectangular body with openings, a rectangular exhaust pipe and a partition located 35880 at the base of the exhaust pipe, an injector device with nozzles, located under the partition, a drip separator located in the exhaust pipe, and a quenching car, characterized in that, in order to reduce harmful emissions into the atmosphere, the installation is equipped with under the partition wall there is a battery of vertical rectangular Venturi tubes, the diffusers of which are located above the quenching car, and in the confusors there are spray irrigation nozzles 15 devices, the partition is made battery-shaped truncated rectangular pyramidal shells, the truncated vertices of which are directed toward the venturi tube confuser, with 20 in this, each pyramidal shell is arranged coaxially with a corresponding venturi pipe. "G ) X " | g i u   YU P j “X; 3 With X L r-i I R but. at X. with C. t s - L  00 / i (P ) X with "(5 I JV JI I ABOUT) Well (- about about i K I W oh c