Self-direction-adjustment periodic pulse jet-flow spray nozzle and filter

Abstract

The invention provides a self-direction-adjustment periodic pulse jet-flow spray nozzle and a filter. The self-direction-adjustment periodic pulse jet-flow spray nozzle comprises a spray nozzle body and a rotation ring; the spray nozzle body is provided with a main channel and direction-adjustment channels located at the outer side of the main channel; the center axes of the outlet ends of the direction-adjustment channels incline towards the center axis of the main channel; the rotation ring is arranged at the upper end of the spray nozzle body and corresponds to the main channel, and a notchis formed in the rotation ring; multiple wing-shaped blades are arranged in the rotation ring; pulse reverse-blowing gas can enter the main channel through the rotation ring, and the wing-shaped blades are subjected to the effect of the pulse reverse-blowing gas to generate a rotation moment, so that the rotation ring is driven to rotate; in the rotation process of the rotation ring, when the notch is communicated with the inlet end of the direction-adjustment channels, partial pulse reverse-blowing gas enters the direction-adjustment channel. According to the embodiment, the problems can beeffectively solved that dust removal of different filter pipes in the single filtering unit in the circumference direction is uneven, and dust removal at different positions of the single filtering pipe in the length direction is uneven.

Description

technical field [0001] The invention relates to the technical field of gas-solid separation, in particular to a self-adjusting periodic pulse jet nozzle and a filter using or configuring the self-adjusting periodic pulse jet nozzle. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] In industries such as petroleum catalytic cracking, coal chemical industry, biomass gasification, waste incineration, pyrolysis and metallurgy, high-temperature dust-containing gases are often produced. In order to meet the requirements of different processes and environmental emission standards, it is necessary to purify these high-temperature dusty gases. High-temperature gas purification technology refers to the separation of solid particles in the gas and the separation of sulfur dioxide (SO 2 ), nitrogen oxides (NO x ), traces of alkali metals, and traces of heavy met...

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Problems solved by technology

[0024] Based on the aforementioned defects in the prior art, the embodiment of the present invention provides a self-adjusting periodic pulse jet nozzle, and a filter that uses or is configured with the self-adjusting periodic pulse jet nozzle. The way of opening the direction-adjusting channel to change the direction of the main pulse jet can effectively solve the problem of uneven dust removal among different filter tubes along the circumferential direction in a single filter unit, and uneven dust removal at different positions along the length direction of a single filter tube. uniform problem

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