CN208997451U - A kind of ironmaking pressure equalizing blow off valve muffler assembly - Google Patents

Abstract

The utility model discloses a kind of ironmaking pressure equalizing blow off valve muffler assemblies, including ontology, it is the dust setting chamber for being equipped with sound-absorbing perforated pipe and tube wall filling super glass wool in body lower part, the sound-absorbing corpusculum of baffle pipe, sparge pipe and nitrogen sparge tube and blast furnace gas pipe composition is installed on top.The structure that the utility model is cooperated jointly using dust room's dilatation decompression noise reduction and sound-absorbing corpusculum, the sound wave of absorbable different wave length, improves noise dampening efficiency, simultaneously, can the nuisance to dust can carry out Recovery Purifying, the utility model sound-absorbing area is big, and silencers channel is long, and sound-damping qualities are big, dust is not easy to plug the aperture of small bore tube, the muffler service life is long, and dust and lead zinc recovering are used again, free from environmental pollution.

Description

A kind of ironmaking pressure equalizing blow off valve muffler assembly

Technical field

The utility model belongs to ironmaking equipment field, further belongs to diffusion valve muffler assembly technical field, specifically relates to And a kind of structure is simple, the convenient diffusion valve muffler assembly of maintenance.

Background technique

It needs to discharge coal gas in tank before blast furnace bucket charging, dust and a small amount of gaseous state lead and zinc, release is contained in coal gas When generate noise, pollute environment.Current existing blast furnace out-spreading valve has the following problems: containing dust and gaseous state lead zinc in coal gas It is directly entered muffler, is adhered on perforated plate, aperture is blocked, so that aperture and sound-absorbing material is lost sound deadening, accumulate over a long period, Aperture is blocked completely, loses sound deadening and scraps；Muffler airflow channel is excessive, and sound-absorbing area is inadequate, and sound-damping qualities are small；Disappear The airflow channel of sound device is in straight barrel type, the directly outer pollution discharging environment of dust；The structure of muffler is single, and intrinsic frequency only has one A, adaptation noise frequency range is very narrow, and the noise of remaining frequency range still pollutes environment, and overall level is still very high, therefore researches and develops one kind and disappear Audio fruit is good, can absorb simultaneously the sound wave of different wave length, while having both the diffusion valve muffler assembly of dust removing effects, has wide General application value.

Utility model content

Simple, maintenance that the purpose of this utility model is to provide a kind of structures conveniently, can absorb different wave length The ironmaking diffusion valve muffler assembly of sound wave.

The purpose of this utility model is achieved in that including ontology, ontology is divided into two sections, and upper section is equipped with water spray The silencing means that pipe, flue, tapered cap, baffle pipe are combined into；Lower section is equipped with sound-absorbing perforated pipe and super glass wool is filled out The dust setting chamber filled and dilatation are depressured silencing means.

The utility model has the advantages that coal gas with pressure, containing dust and gaseous state lead zinc enters muffler lower part, due to volume sudden enlargement, Lower noise, meanwhile, air-flow entrainment dust etc. rises to tapered cap and turns that 180 degree is downward, and dust is downwardly against gravitational fall Into taper ash bucket, periodically drain from delivery pipe, Collection utilization.It is deposited on the regular nitrogen of dust and Shui Chong in tapered cap and ash bucket It sweeps.Coal gas and noise enter top noise reduction section, and the tubule annular array in noise reduction section, from inside outwards spacing is gradually reduced spacing, Small aperture successively increases outside in.The sound-absorbing structure empty room that each layer perforation tubule and packet are constituted admittedly, the mutual not phase of intrinsic frequency Together, the sound wave of different wave length is absorbed.The noise-reducing structure with room composition is managed in muffler, in addition being made of the space of aperture and behind Helmholtz resonator forms different acoustic impedances, absorbs the noise of different wave length, adaptation frequency noise is wide, so different frequencies The noise of rate can be controlled.The utility model sound-absorbing area is big, and silencers channel is long, and sound-damping qualities are big, and dust is not easy to plug small The aperture of hole pipe, the muffler service life is long, and dust and lead zinc recovering are used again, free from environmental pollution.

Detailed description of the invention

Fig. 1 is the main view of the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the A-A cross-sectional view of Fig. 1；

Fig. 4 is the B direction view of Fig. 1.

1- flange in figure, 2- fume pipe, 3- flange, 4- pipe, 5- sparge pipe, 6- flange, 7- ash bucket, 8- baffling connect outside Plate, connecting plate in 9- baffling, 10- baffle pipe, 11- tapered cap, 12- ontology, 13- nitrogen nozzle, 14- card, the perforation of 15- sound-absorbing Pipe, 16- super glass wool, 17- glass cloth, 18- ring flat-plate, 19- flange.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing, but is not limited in any way the utility model System instructs made any transformation or improvement based on the utility model, each falls within the protection scope of the utility model.

As shown in Figure 1, the utility model includes ontology 12, ash bucket 7 is that dust setting chamber and dilatation are dropped in 12 lower section of ontology Press muffler 21, upper section is baffle pipe 10, tapered cap 11, nitrogen nozzle 13, connecting plate 9, baffling outside link plate 8 in baffling, Pipeline 2, pipeline 4, sparge pipe 5 are installed inside ash bucket 7.

Sound-absorbing perforated pipe 15, filling on the outside of tube wall are housed inside the dust setting chamber and dilatation decompression muffler 12 There is super glass wool 16, upper end is equipped with card 14.

15 annular array of sound-absorbing perforated pipe, spacing are from inside outwards gradually reduced, and small aperture is layer-by-layer inside-out Increase.

The nitrogen nozzle 13 is opening down, and upward, 5 quantity of sparge pipe is 4 to 5 nozzle opening of sparge pipe, hangs down two-by-two Straight installation.

There is flange 1 in 2 upper end of pipe, and there is flange 6 in sparge pipe outer end, and there are flange 19, installation position in 20 outer end of nitrogen sparge tube At the ontology above tapered cap, with 5 center line angulation of sparge pipe between 10 ° to 45 °.

The working principle and the course of work of the utility model: the course of work is as follows:

Coal gas with pressure, containing dust and gaseous state lead zinc enters muffler lower part, and by sound-absorbing perforated pipe 15, each layer perforation is small The sound-absorbing structure empty room that pipe and packet are constituted admittedly, intrinsic frequency is different, absorbs the sound wave of different wave length.Pipe and room in muffler The noise-reducing structure of composition forms different acoustic impedances in addition forming Helmholtz resonator by the space of aperture and behind, absorbs The noise of different wave length, lower noise, air-flow entrainment dust etc. rise to tapered cap and turn that 180 degree is downward, and dust is downwardly against weight Power effect drops in taper ash bucket, periodically drains from delivery pipe, Collection utilization, it is regular to be deposited on dust in tapered cap and ash bucket Nitrogen and water sweep.To achieve the effect that noise reduction.

The utility model sound-absorbing area is big, and silencers channel is long, and sound-damping qualities are big, and dust is not easy to plug the aperture of small bore tube, disappears The sound device service life is long, and dust and lead zinc recovering are used again, free from environmental pollution.

Claims (5)

1. a kind of ironmaking pressure equalizing blow off valve muffler assembly, it is characterized in that: including ontology (12) and ash bucket (7), in ontology (12) Lower section is dust setting chamber and dilatation is depressured muffler, and upper section is baffle pipe (10), tapered cap (11), nitrogen nozzle (13), rolls over Connecting plate (9) in flowing, it is fume pipe (2) that ash bucket (7) is internal, the muffler that pipe (4) sparge pipe (5) is composed.

2. ironmaking pressure equalizing blow off valve muffler assembly according to claim 1, it is characterized in that: the dust setting chamber is simultaneous Dilatation is depressured inside muffler (21) and installs sound-absorbing perforated pipe (15), and sound-absorbing perforated pipe (15) outer wall is filled with super glass wool (16), ontology (12) inner wall is equipped with glass cloth (17).

3. ironmaking pressure equalizing blow off valve muffler assembly according to claim 1 or 2, it is characterized in that: the nitrogen nozzle (13) opening down, upward, sparge pipe (5) quantity is 4 to sparge pipe (5) nozzle, two-by-two right angle setting.

4. ironmaking pressure equalizing blow off valve muffler assembly according to claim 2, it is characterized in that: the sound-absorbing perforated pipe (15) annular array, spacing are from inside outwards gradually reduced, and small aperture successively increases inside-out.

5. ironmaking pressure equalizing blow off valve muffler assembly according to claim 1, it is characterized in that: the fume pipe (2) with Have between baffle pipe (10) connecting plate in baffling (9), fume pipe (2) upper end has flange (1), and there are flange (6), nitrogen in sparge pipe outer end Gas blowout pipe (20) outer end has flange (19), and installation site is located at the ontology above tapered cap, with sparge pipe (5) center line institute at Angle is between 10 ° to 45 °.