Anti-explosion cooling purifying device for hydrogen reducing furnace

Abstract

The invention provides an anti-explosion cooling purifying device for a hydrogen reducing furnace, mainly comprising a spray water inlet pipe, a spray water sleeve, an anti-explosion buffering cavity, a cooling water sleeve, a water-supplying pipe, an open buffering water tank, a floating ball valve, a U-shaped communicating pipe and a waste discharging pipe. The spray water inlet pipe and the spray water sleeve are used for rinsing and cooling tail gas from the hydrogen reducing furnace for reducing the temperature of the tail gas so as to eliminate part of dust, ammonia and moisture in hydrogen as well as reduce the burden of the hydrogen recovering and purifying system; and the anti-explosion buffering cavity, the U-shaped communicating pipe and the open buffering water tank and the water column are used for isolating air in the reducing furnace from air outside so as to achieve the functions of water sealing, pressure releasing and anti-explosion. The invention is suitable for various hydrogen reducing furnaces and has the advantages of reasonable design, simplicity and practicability, safety and reliability as well as evident effect.

Description

technical field [0001] The invention relates to a tail gas treatment device for a hydrogen reduction furnace, in particular to an explosion-proof cooling and purification device for a hydrogen reduction furnace. Background technique [0002] Generally, the hydrogen reduction furnace needs to send the high-temperature, high-humidity, and high-dust tail gas mainly discharged from hydrogen to the hydrogen purification system for recovery and purification treatment, and then recycle, such as the hydrogen reduction furnace for powder reduction of tungsten, molybdenum, and cobalt. . For safety reasons, an explosion-proof device is usually connected to the exhaust port of the hydrogen reduction furnace, and then the tail gas is sent to the hydrogen purification system through the pipeline. The explosion-proof principle of the connected explosion-proof device basically adopts a pressure relief port sealed with a rubber or a burst-proof disc. When the pressure in the furnace suddenl...

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Problems solved by technology

This kind of explosion-proof device only plays the role of buffering explosion-proof. Once the rubber or explosion-proof disk is ruptured due to excessive pressure, the rubber or explosion-proof disk must be replaced immediately and resealed. The actual operation is troublesome, and the water in the tail hydrogen After the steam condenses, it will accumulate in the explosion-proof device, block the pipeline, and cannot purify the tail hydrogen.

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