CN203908336U - Fume exhaust and dust leakage prevention mechanism for kiln - Google Patents

Abstract

The utility model discloses a fume exhaust and dust leakage prevention mechanism for a kiln. The mechanism includes a fume exhaust pipeline. One end of the fume exhaust pipeline is connected with a fume outlet of the kiln, and the other end of the fume exhaust pipeline is connected with a bag-type dust collector. The fume exhaust pipeline is connected with an air inlet pipeline upwards. The lower segment of the air inlet pipeline and the fume exhaust pipeline are mutually perpendicular and communicated. The upper segment of the air inlet pipeline inclines towards one side and forms an angle of 45 degrees-60 degrees with the lower segment of the air inlet pipeline. The upper portion of the inner side of an air inlet pipeline port is hinged to an air damper. An angle of 5 degrees to 30 degrees is formed between the air damper and the air inlet pipeline port. The mechanism can exhaust dust of the kiln and maintain the balance of air pressure in the kiln; meanwhile, the mechanism can prevent the dust from being sucked back and leaked, so that the environment in a workshop is effectively protected.

Description

A kind of kiln smoke evacuation dust leakage mechanism

Technical field

The utility model relates to the production field of the catalyst that coal-fired denitration uses, and in particular to a kind of, be used to kiln to discharge fume and prevent the kiln smoke evacuation dust leakage mechanism that dust suck-back spills.

Background technology

Coal-fired denitration need to be used catalyst and be carried out catalytic reaction, in the production process of catalyst, needing has sintering circuit, exactly catalyst is placed on and in kiln, carries out high temperature sintering, in sintering process, can produce volume of smoke, must drain through smoke-exhaust pipeline, and through cloth dust collector, collect dust in smoke-exhaust pipeline terminal, cloth dust collector had both had the function of collecting dust, also the function that has outside air draft, the flue dust in kiln is discharged under the effect of cloth dust collector.But sintering circuit requires the air pressure in kiln to remain on certain limit, therefore must try every possible means to regulate the low pressure causing because of the excessive exhaust of cloth dust collector.Existing way is on smoke-exhaust pipeline, to add a butterfly valve, when kiln internal gas pressure is lower, can be by butterfly valve to air intake in smoke-exhaust pipeline, thus kiln air pressure is carried out to balance.The problem of doing is like this, when cloth dust collector is cleared up collected dust, need to fiercely blow the dust hitting in dust arrester with air pump, so that dust all falls in cloth bag, avoid being stained with and hang on sidewall, but the airflow that air pump produces can make a part of dust along smoke-exhaust pipeline reverse movement, even from butterfly valve ejection, enter into workshop air, this has just polluted workshop condition, and workers ' health is threatened.

Utility model content

The purpose of this utility model is to provide a kind of kiln smoke evacuation dust leakage mechanism, and this mechanism can drain furnace smoke, and maintains kiln internal gas pressure balance, more can prevent that dust suck-back from spilling simultaneously, has effectively protected environment in workshop.

For achieving the above object, the utility model is taked following technical scheme:

A kind of kiln smoke evacuation dust leakage mechanism, comprise smoke discharging pipe, smoke discharging pipe one end is connected with kiln outlet flue, the other end is connected with sack cleaner, it is characterized in that, smoke discharging pipe is upwards connected with air inlet pipeline, the mutual vertical connection of air inlet pipeline hypomere and smoke discharging pipe, air inlet pipeline epimere is 45 ~ 60 degree angles to lopsidedness and with air inlet pipeline hypomere, at air inlet pipeline port inside front, is hinged with deep bead, and deep bead becomes 5 ~ 30 degree angles with air inlet pipeline port.

Preferably, described air inlet pipeline port is circular, and described deep bead is circular and naturally droops.

Further preferred, at described air inlet pipeline hypomere, air shaker is installed.

In technique scheme, on smoke-exhaust pipeline, install air inlet pipeline additional, make air inlet pipeline epimere angled to laterally inclined, in port, install deep bead additional simultaneously, and with port at an angle, this can guarantee that dust is under airflow function during suck-back, and deep bead is stressed to be adjacent to port, prevents that dust from spilling, deep bead and port are at an angle simultaneously, can make air enter, kiln air pressure is regulated, circular port and deep bead make simple for structure durable.Air shaker assists in removing the dust that air inlet pipeline stops up, and makes dust fall into smoke-exhaust pipeline, to again discharged.This device terminal with compact integral structure, makes simply, and result of use is good, has effectively protected environment in workshop.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the right view of air inlet pipeline;

Fig. 3 is the front view of air inlet pipeline.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further:

As shown in Fig. 1 Fig. 2 and Fig. 3, kiln 1 is for sintered catalyst, kiln 1 is connected with cloth dust collector 2 through smoke discharging pipe 3 by outlet flue 4, smoke discharging pipe 3 is upwards connected with air inlet pipeline 5, particularly, air inlet pipeline hypomere 9 and smoke discharging pipe 3 vertical connections, air inlet pipeline epimere 10 is 45 ~ 60 degree with air inlet pipeline hypomere 9 angulation α, this angle both can prevent that dust, in the interior too much accumulation of air inlet pipeline epimere 10, was also conducive to form angle between air inlet pipeline port 6 and deep bead 7.The rotatable deep bead 7 that is hinged with in air inlet pipeline port 6 tops, deep bead naturally droops, between air inlet pipeline port 6 and deep bead 7, angle β is 5 ~ 30 degree, the size of this angle beta has determined to flow into from gap between air inlet pipeline port 6 and deep bead 7 speed of air, thereby has effectively regulated the air pressure balance in kiln.Generally air inlet pipeline port 6 and deep bead 7 are done circularly, made simple in structurely, make easily.When cloth dust collector 2 need to be cleared up dust by airflow, air-flow can make deep bead 7 be fitted on air inlet pipeline port 6, has so effectively prevented that dust from sending forth and spilling from air inlet pipeline port 6, has effectively protected environment in workshop.On air inlet pipeline hypomere 9, air shaker 8 can also be installed, when the dust on need to making air inlet pipeline 5 drops on smoke discharging pipe 3 to is again collected in cloth dust collector 2, can start 8 pairs of air inlet pipelines of air shaker 5 and carry out rapping, thereby dust is fallen.

The present embodiment is an explanation to the utility model design and realization just, is not limited, and under the utility model design, the technical scheme converting without essence is still in protection domain.

Claims (3)

1. kiln smoke evacuation dust leakage mechanism, comprise smoke discharging pipe, smoke discharging pipe one end is connected with kiln outlet flue, the other end is connected with sack cleaner, it is characterized in that, smoke discharging pipe is upwards connected with air inlet pipeline, the mutual vertical connection of air inlet pipeline hypomere and smoke discharging pipe, air inlet pipeline epimere is 45 ~ 60 degree angles to lopsidedness and with air inlet pipeline hypomere, at air inlet pipeline port inside front, is hinged with deep bead, and deep bead becomes 5 ~ 30 degree angles with air inlet pipeline port.

2. kiln as claimed in claim 1 smoke evacuation dust leakage mechanism, is characterized in that, described air inlet pipeline port be circular, and described deep bead is for circle and naturally droop.

3. kiln as claimed in claim 2 smoke evacuation dust leakage mechanism, is characterized in that, at described air inlet pipeline hypomere, air shaker is installed.