Tapered air pipe

Abstract

The invention relates to a connecting air pipe, in particular to an air pipe for removing dust and moisture under the action of negative pressure. A tapered air pipe consists of a tapered outer pipe and an inner pipe, wherein the upper end is provided with an air outlet and a connecting component, the bottom end is closed and is provided with a water guide device, and the middle part is provided with a cleaning port on which a cleaning door is arranged; the inner pipe consists of a connecting pipe and an extension pipe and is inserted into a middle position at the bottom end of the tapered outer pipe; the bottom of the connecting pipe is provided with an air inlet and a connecting component; the extension pipe is arranged in the tapered outer pipe; and the upper end of the extension pipe is extended to the cleaning port. When the tapered air pipe is used, the tapered outer pipe is connected with a main air pipe of a centralized dust removing system, and the inner pipe is directly connected to the main air pipe of dampening and loose cylinder type equipment. The aim of primary dust-steam separation is fulfilled through negative pressure difference in the pipe formed by reducing in the tapered outer pipe and a condensation effect of the wall of the tapered pipe.

Description

technical field [0001] The invention relates to a connecting air duct, in particular to an air duct for dust removal and moisture removal under the action of negative pressure. Background technique [0002] In industrial production, there are a lot of damp and loose equipment, which often involve moisture removal and dust removal devices. [0003] In the silk-making equipment of the tobacco industry, there are many damp and loose tube equipment. Due to the smoke generated by the tobacco itself and the damp atomized water, moisture drainage and dust removal are particularly important. In this type of equipment, part of the centralized dust removal system is used for centralized dust removal, that is, there is only one air duct for dust removal and moisture removal, and the smoke and atomized water are sucked into the dust removal system through negative pressure, and the following problems will occur : [0004] 1. The atomized water is sucked into the fan of the dust remova...

AI Technical Summary

Problems solved by technology

[0004] 1. The atomized water is sucked into the fan of the dust removal system through negative pressure, which affects the service life of the fan parts;

[0005] 2. The ash discharge system of the dust removal system is blocked due to the partial humidity of the soot;

[0006] 3. There is a lot of fouling in the air duct, which reduces the negative pressure in the air duct and affects the dust removal effect. The air duct needs to be removed and cleaned frequently;

[0007] 4. There is condensed water in the scale, and the condensed water has a backflow phenomenon, which affects the quality of expanded tobacco

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