SU1581732A1 - Arrangement for withdrawing gas from coke oven - Google Patents

Abstract

The invention relates to the coking industry. The purpose of the invention is to simplify the design, increase maintainability and reduce operating costs. The goal is achieved by the fact that the valve box is made in the form of a vertically mounted cylinder, along the axis of which there is a vertical stem with a valve fixed on it, made in the form of two concentrically arranged shells installed at different levels ensuring the creation of a hydraulic seal. At the same time, a horizontal disk is installed on the upper end of the inner shell, with which the outer shell forms an open cavity, and under the disk on the inner shell there are holes for draining - water. The device as a whole also comprises connected in series with a cover and a knee with a nozzle for supplying cooling water. In order to seal the connection of the valve stem with the removable valve cover at its upper working position, the cover is equipped with a water supply nozzle and a shell, which is fixed on the inside of the cover. At the same time, to ensure the creation of a water seal, the shell diameter is smaller than the diameter of the outer valve shell. 2 Il.

Description

The invention relates to the coking industry, in particular, to devices for venting gas from a coke oven to a gas collector and can be used in other industries, for example, in the petrochemical industry, for venting high-temperature gas.

The purpose of the invention is to simplify the design, increase maintainability and reduce maintenance costs.

FIG. 1 shows the device, a general view; in fig. 2 - hydraulic seal assembly, sealing off the coking chamber from the gas collector.

A device for venting gas from a coke oven contains one hundred to 1 installed in the furnace masonry, transition bend 2 with a cover 3 and a lever system 4, a valve box 5 entering the fitting 6 of the gas collector 7.

The valve box contains a saddle 8p vertical rod 9 with valve 10 fixed on it, nozzle 11 and removable cover 12,

The valve 10 consists of two concentrically located shells — an outer 33 and an inner 14, installed at different levels to create a water seal. At the upper end of the inner shell 3 4 a horizontal disk 15 is installed, with which the outer shell i3 forms an open cavity. The inner shell 14 has holes - one is 16 for draining water. The removable cover 12 of the valve box 5 contains a nozzle 17 and an additional shell 18 attached to its inner side. The diameter of the shell 18 is less than the diameter of the outer shell 13 of the valve 10

Between the fitting 6 of the gas collector 7 and the valve box 5 a seal 19 is performed.

A device for removal of gas from the coke oven operates as follows. When the top (main) position of the valve 10 and the lid 3 is closed, the coke oven gas from the coking chamber enters the gas collector 7, is cooled with ammonia water supplied through the nozzle 11. With this opening, port A in the saddle 8 is completely open for gas passage. At the same time, the shell 18 of the cover 12, in conjunction with the open cavity of the valve 10 formed by the outer shell 13 and the disk 15, creates the upper valve of supplying ammonia water through the nozzle 7.

The hydraulic lock prevents the passage of coke oven gas through the gap in the cover 32 and around the vertical rod 9,

Ammonia water supplied through the nozzles 11 and 17 flows 9 providing a constant wash-cleaning of the saddle 8.

In the described upper position, the valve 10 is located on the jjcero of the period of coking of the charge.

To deactivate the coking chamber from the gas assembly for the period of coke issuance, with the help of a lever system, the valve 10 is lowered to the lower position on the saddle 8 and opened ™

the cover 3. In this position, the valve 10 with the saddle 8, due to the incoming constant ammonia water, form the lower valve, which excludes

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It absorbs gas from the gas collector to the atmosphere. Water from the created hydraulic shutter through the openings of the window 16 of the inner shell 14 and the through hole A of the seat 8 flows into the gas collector 7.

In this position, the valve is in the course of coke dispensing period.

After the coke has been dispensed from the furnace and the cleaning of the stand 1 and cover 3 is completed, the cover 3 is closed with a lever system, and the valve 10 rises to the upper (main) position, creating conditions for the gas to enter the gas collector from the coking chamber after it is loaded . When this happens, the upper water seal is created again.

The use of the invention ensures reliable operation of the device and reduced operating costs due to the fact that with the elimination of the rotary valve plate, on which resin and fusions constantly stick, there is no need for time-consuming and dangerous operation to periodically clean the valve box and create normal conditions for the passage of coke oven. gas from the coking chamber to the gas collector. In addition, simplifying the design of the device, in which there is no rotary shaft, bearing assemblies that require additional maintenance during operation, as well as the extremely simple configuration of the valve box reduces the metal consumption of the device by 250-300 kg, which reduces its cost.

The presence of a removable cover in the valve box allows the valve to be replaced and repaired without removing the valve box, which extends the service life of the device and significantly improves its maintainability.

Claims (1)

Invention Formula A device for venting gas from a coke oven, comprising connected in series with a lid, a knee with a nozzle for supplying water, a valve box with a saddle and a valve connected to a gas collector, characterized in that maintainability and reduction 51 operating costs, the valve box is made in the form of a vertically mounted cylinder with a removable lid, the valve is equipped with a stem placed in the center of the lid, and is made in the form of two concentrically arranged at different levels of the rims while the lower inner rim is provided at its upper end. 17326 a horizontal disk with the formation of an open cavity in the outer shell, and windows located under the disk, and the lid is equipped with a nozzle for supplying water and an additional shell fixed symmetrically with the axis of the bolt on the inside of the lid and made with a smaller diameter. p diameter of the outer shell of the valve. five 17 12 2