High-temperature filtration bag leakage detection apparatus, high-temperature filtration bag leakage detection method and method for manufacturing and assembling high-temperature filtration bag leakage detection apparatus

Abstract

The invention discloses a high-temperature filtration bag leakage detection apparatus, a high-temperature filtration bag leakage detection method and a method for manufacturing and assembling the high-temperature filtration bag leakage detection apparatus. The high-temperature filtration bag leakage detection apparatus sequentially comprises a material inlet, a material inlet pipe, a material boxfor accommodating a detection agent, a material outlet pipe and a material outlet from top to bottom, and further comprises a pressurization pipe with one end connected to the side surface of the material box, a pressurization port connected to the other end of the pressurization pipe, a material inlet valve positioned between the material inlet pipe and the material inlet, a material outlet valvepositioned between the material outlet pipe and the material outlet, and a pressurization valve positioned between the pressurization pipe and the pressurization port. The invention further disclosesa high-temperature filtration bag leakage detection method being performed by using the high-temperature filtration bag leakage detection apparatus, and a method for manufacturing and assembling thehigh-temperature filtration bag leakage detection apparatus. According to the present invention, with the high-temperature filtration bag leakage detection apparatus, the high-temperature filtration bag leakage detection method, and the method for manufacturing and assembling the high-temperature filtration bag leakage detection apparatus, the precise leakage detection and the non-destructive leakage detection can be achieved, the service life of the high-temperature filtration bag can be prolonged, and the advantages of safety, no pollution, convenient manufacture and installation and simpleoperation can be achieved.

Description

technical field [0001] The invention relates to the technical field of blast furnace gas dry dedusting system, in particular to a high-temperature filter bag leak detection device, a leak detection method and a manufacturing and assembling method of the device. Background technique [0002] Blast furnace gas is the main energy used in the internal production of iron and steel enterprises, and is widely used in the heating and combustion systems of steel factories. Since the blast furnace gas needs to be dedusted before being reused, the blast furnace gas dry dust collector is usually used to dedust the blast furnace gas. The blast furnace gas dry dust collector purifies the blast furnace gas through the high-temperature filter bag installed inside. the quality of. However, when the high-temperature filter bag runs for a period of time, a leaky bag will occur. If it is not treated in time, it will cause huge damage to the subsequent blast furnace gas residual pressure turbin...

AI Technical Summary

Problems solved by technology

The first measure is to replace the high-temperature filter bag as a whole every two years; the second measure is to regularly use the joint leak detection technology of "manual sampling and weighing + artificial bag piece + flower plate, dust accumulation in the injection pipe" to detect the high-temperature filter bag. However, due to the backwardness of this leak detection technology, there is a disadvantage that it is impossible to accurately locate a single damaged filter bag. When there are leaks in one or more high-temperature filter bags, all the high-temperature filter bags in the entire dust collector can only be replaced.

In fact, most of the replaced filter bags can continue to be used, resulting in higher production costs, and the natural decomposition of high-temperature filter bags is difficult, which will also lead to serious environmental pollution

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