Online gas purification device

Abstract

The invention discloses an online gas purification device, which comprises a precipitation tank, a gas inlet pipeline, an auxiliary separation mechanism, a storage tank, a filter plate, a gas outlet pipeline and a connection filtering pipeline, wherein a gas inlet control valve is arranged on the gas inlet pipeline; the auxiliary separation mechanism comprises a damping plate and a partition plate; the damping plate is downwards inclined, and is provided with a first end and a second end, and the second end is higher than the first end; the partition plate is vertically arranged, and the middle part is connected with the second end of the damping plate; an exhaust port of the gas inlet pipeline is opposite to the damping plate; the filter plate is arranged in the storage tank; the connection filtering pipeline is communicated between the precipitation tank and the storage tank; a first stop valve, a filter and a second stop valve are sequentially arranged on the connection filtering pipeline along a direction from the precipitation tank to the storage tank. The online gas purification device has the advantages of good purification and filtering effects, low cost, high utilization rate, less maintenance, few consumable parts and high operability.

Description

technical field [0001] The invention relates to the technical field of continuous casting, in particular to an online gas purification device. Background technique [0002] Various medium gases are widely used in the industry. It can be said that the medium gas is the "blood" of a production line; it is especially important in the wide-slab continuous casting machine production line. Especially for the gas to the equipment user point, since the pollutants hidden in the gas transportation pipeline during the production and installation process are mostly solid particles such as chips, burrs, welding slag, rust flakes and dust, they are more harmful, causing flame cutting The nozzle and burner are severely damaged; the reason is that various impurities in the gas block the flame cutting nozzle, so removing and purifying impurities in the medium gas is more and more concerned by those skilled in the art. [0003] In the case of the overall sluggish steel market, in order to re...

AI Technical Summary

Problems solved by technology

[0005] (1) Poor purification and filtration effect: the design structure is unreasonable, resulting in difficulty in selection. The original purification method mainly relies on gas filters for purification. If you choose a filter with high filtration precision that is easy to block, the low precision will not meet the required filtration. Effect, although it can filter the solid particles in the gas to a certain extent, but it is not very effective in filtering liquids such as water and neon in the gas pipeline, and the reliability is relatively poor.

Especially in winter, the water contained in the gas is easy to freeze and block the filter, resulting in poor gas flow at the user's point, resulting in low or no pressure

[0006] (2) High cost, low utilization rate and large maintenance amount: the main structure of the original filter equipment includes: shell, filter screen, end cover and fastening bolts, etc.

Because the filter needs to be disassembled and cleaned online after the filter has been used for a period of time. In order not to affect the production, it is generally processed without stopping the machine. Therefore, the filters used online are used one by one, causing the equipment to be idle. The utilization rate only reaches 50%, which virtually increases the cost of spare parts

As impurities such as water and neon are easy to cause corrosion to the filter, frequent replacement is required, and a group of professionals are required for daily maintenance and maintenance, which is labor-intensive

[0007] (3) Potential safety hazard: In order not to affect normal production, equipment maintenance personnel generally disassemble the filter online to clean the filter screen. The filter element is relatively frequent, and the frequent opening and closing of the valve controlling the gas pipeline is prone to wear and tear of the valve core, leakage or lax closure. In addition, repeating this work for a long time cannot avoid the paralysis of the operator's mind, which is likely to cause various accidents.

[0008] To sum up, it can be seen that the pollutants latent in the gas pipeline that need to be removed online are mostly harmful substances such as welding slag, rust flakes, dust and water. In order to avoid damage to the flame cutting gun nozzle and burner and ensure timely and rapid cutting To make the cutting surface smooth to prevent a large amount of sticky steel slag on the lower surface of the slab, which will make it difficult to deburr in the next process. A method with low implementation cost, simple construction, easy installation and operation, flexible disassembly, safety and reliability, and scientific and reasonable structural design is needed. The device has strong field applicability, obvious implementation effect, and can effectively remove impurities and water in the online gas pipeline.

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