CN210089390U - Sintering furnace is used in zirconia production - Google Patents

Abstract

The utility model provides a sintering furnace is used in zirconia production, the induction cooker comprises a cooker bod, blast pipe and silencing device, silencing device includes first hush pipe, the second hush pipe, inhale sound cotton and outer tube, the side of first hush pipe is provided with first filtering hole, the one end that the blast pipe was kept away from to first hush pipe includes circuitous pipe and inner tube, the center of inner tube is provided with the second hush pipe, the both ends of second hush pipe are blind end and open end respectively, be provided with second filtering hole on the side of second hush pipe, first hush pipe and outer tube threaded connection and extend the outer tube, the inside of outer tube is provided with the joint table and crosses the filter core, the outer tube is provided with the connecting pipe near the one end of joint table, inhale the cotton cover of sound and establish on the outer tube, inhale the cotton outside of sound and be provided with the cotton sticky tape of. The utility model discloses increased silencing device and can effectively the noise abatement pollution, the effective life-span of the good and device of amortization quality is longer. The utility model relates to a rationally, simple structure is fit for extensive the popularization.

Description

Sintering furnace is used in zirconia production

Technical Field

The utility model belongs to the technical field of zirconia production facility, especially, relate to a sintering furnace is used in zirconia production.

Background

The transformation toughening mechanism of the zirconia ceramics generated by the inherent crystal transformation of the zirconia ceramics enables the zirconia ceramics to have certain toughness and the hardness of the ceramics, so the zirconia is applied to various fields. Sintering furnaces are required for the production of zirconia ceramics. Before each discharge of the parts in the sintering furnace, high-pressure argon in the furnace needs to be evacuated, so that the pressure in the furnace is consistent with the atmospheric pressure. However, each time of exhaust, because of lack of effective silencing measures, the high-pressure argon gas and the air near the pipe orifice generate intense friction to generate sharp and harsh noise, so that noise pollution is generated, and the method is not only destructive to the environment, but also harmful to human bodies.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the technical problem that above-mentioned fritting furnace exists in the aspect of the exhaust, provide a reasonable in design, simple structure and can noise pollution abatement's a fritting furnace is used in zirconia production.

In order to achieve the above object, the present invention adopts the technical solution that the present invention provides a zirconia production sintering furnace, comprising a furnace body, wherein an exhaust pipe is arranged on the furnace body, one end of the exhaust pipe is provided with a silencer, the silencer comprises a first silencing pipe, a plurality of first filtering holes are uniformly arranged on the side surface of the first silencing pipe, one end of the first silencing pipe, which is far away from the exhaust pipe, comprises a circuitous pipe integrally formed with the first silencing pipe and an inner pipe coaxial with the first silencing pipe, the center of the inner pipe is provided with a second silencing pipe, one end of the second silencing pipe, which is in contact with the inner cavity of the first silencing pipe, is a closed end, one end of the second silencing pipe, which is far away from the inner cavity of the first silencing pipe, is an open end, and a plurality of second filtering holes are uniformly distributed on the side surface close to the open end, the outer parts of the first silencing pipe and the second silencing pipe are provided with an outer pipe, the first silencing pipe is in threaded connection with the outer pipe and extends out of the outer pipe, a connecting table used for supporting the second silencing pipe is arranged at a position, close to the open end of the second silencing pipe, inside the outer pipe, a connecting pipe is arranged at one end, close to the connecting table, of the outer pipe, a filter core located inside the outer pipe is arranged between the connecting pipe and the connecting table, sound-absorbing cotton is sleeved outside the outer pipe, and foam adhesive tapes are arranged outside the sound-absorbing cotton.

Preferably, the longitudinal section of the detour pipe is a circular arc, and the diameter of the circular arc is smaller than the radius of the first silencer duct.

Preferably, the second silencing pipe is respectively connected with the inner pipe and the connecting platform in a threaded mode.

Preferably, the wall thickness of the second sound-deadening tube is different from the wall thickness of the first sound-deadening tube.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a pair of zirconia production is with fritting furnace has increased silencing device and can effectively the noise abatement pollution to reach the effect of second grade amortization through first amortization pipe and second amortization pipe, and further the noise abatement with inhaling the sound cotton, the amortization quality improves greatly, and this device can effectively be protected to the cotton sticky tape of bubble moreover, has prolonged the effective life of device. The utility model relates to a rationally, simple structure, be fit for extensive popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a cross-sectional view of a muffler assembly according to an exemplary embodiment;

FIG. 2 is a schematic structural diagram of a silencer (non-foam adhesive tape) provided by an embodiment;

in the above figures:

1. a first silencer duct; 1a, a first filter hole; 1b, a circuitous pipe; 1c, an inner tube; 2. a second muffler pipe; 2a, a second filter hole; 3. an outer tube; 3a, a connecting table; 3b, a connecting pipe; 4. a filter element; 5. sound-absorbing cotton; 6. foam tape.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "inner" and "outer" will be used hereinafter to describe the elements, components, parts, etc. in the drawings, which are consistent with the above-described, lower, inner and outer directions of the drawings, and are not intended to limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1 and 2, the utility model provides a pair of sintering furnace is used in zirconia production, including the furnace body, be provided with the blast pipe on the furnace body, furnace body and blast pipe are current mature technique, and this embodiment is no longer repeated here. This device has increased silencing device on prior art's basis, utilizes silencing device to come effective noise pollution reduction.

Specifically, the utility model is provided with a first silencing pipe 1 at one end of the exhaust pipe, a plurality of first filtering holes 1a are uniformly arranged on the side surface of the first silencing pipe 1, the end of the first silencing pipe 1 far away from the exhaust pipe comprises a circuitous pipe 1b which is integrally formed with the first silencing pipe and an inner pipe 1c which is coaxial with the first silencing pipe, the center of the inner pipe 1c is provided with a second silencing pipe 2, the end of the second silencing pipe 2 contacting with the inner cavity of the first silencing pipe 1 is a closed end, the end of the second silencing pipe 2 far away from the inner cavity of the first silencing pipe 1 is an open end and a plurality of second filtering holes 1a are uniformly distributed on the side surface near the open end, the outer pipe 3 is arranged outside the first silencing pipe 1 and the second silencing pipe 2, the first silencing pipe 1 is in threaded connection with the outer pipe 3 and extends out of the outer pipe 3, a connecting platform 3a for supporting the second silencing pipe 2 is arranged at the position near the open end of the second silencing pipe 2 inside the outer pipe 3, the one end that outer tube 3 is close to connecting platform 3a is provided with connecting pipe 3b, is provided with between connecting pipe 3b and the connecting platform 3a and is located the inside filter core 4 that crosses of outer tube, and the outside cover of outer tube 3 is equipped with inhales sound cotton 5, inhales the outside of sound cotton 5 and is provided with the cotton sticky tape 6 of bubble. Can effectively reduce noise pollution through having increased silencing device to reach the effect of second grade amortization through first amortization pipe 1 and second amortization pipe 2, and further noise abatement with inhale sound cotton 5, the amortization quality improves greatly, and this device can effectively be protected to the cotton sticky tape 6 of bubble moreover, has prolonged the effective life of device.

More specifically, the working principle of the device is that argon in the furnace body enters the first silencing pipe 1 from the exhaust pipe, one part of sound waves generated by gas friction and vibration passes through the first filtering hole 1a, the other part of the sound waves is filtered in the first silencing pipe 1 and reflected and attenuated back and forth, meanwhile, the detour pipe 1b and the part of the second silencing pipe protruding out of the inner pipe can play a role in buffering the sound waves and the gas, the reflection times of the sound waves in the first silencing pipe 1 are increased, and the period of sound wave attenuation is shortened; the sound wave passing through the first filtering hole 1a enters the outer tube and then enters the second silencing tube 2, similarly, one part of the sound wave is filtered by the second silencing tube 2 in a spacing cavity between the outer tube and the second silencing tube 2 and is reflected and attenuated back and forth, and the other part of the sound wave enters the second silencing tube 2 through the second filtering hole 2 a; sound wave and air entering connect the cavity between platform and the connecting pipe in the second hush pipe 2, because space grow, pressure reduces, is favorable to reducing the atmospheric pressure of connecting pipe export, avoids new noise to produce, filters the core moreover and can filter the row of air body, the pollution abatement degree.

The sound absorption cotton 5 is a roll material formed by processing single or multiple different fibers through multiple processes, and is widely used at present as bi-component sound absorption cotton, and polyester sound absorption cotton is one of the bi-component sound absorption cotton and the polyester sound absorption cotton, and can effectively absorb sound waves transmitted through a solid pipe wall. The foam adhesive tape is manufactured by coating a solvent type (or hot melt type) pressure-sensitive adhesive on one surface or two surfaces of EVA (ethylene vinyl acetate) or PE (polyethylene) foam which is taken as a base material and then compounding release paper. The foam tape 6 has not only sealing and shock absorbing functions but also excellent sealing properties, compression set resistance, flame retardancy, wettability and the like. Utilize the cotton sticky tape of bubble can effectively protect this device, increase of service cycle can promote aesthetic measure moreover.

In order to improve the silencing effect, the longitudinal section of the circuitous pipe 1b provided by the utility model is smaller than the radius of the first silencing pipe 1 for the diameter of the circular arc and the circular arc. On the one hand, the reflection times of the sound waves in the first silencing pipe 1 can be improved, on the other hand, the gas can be accelerated to pass through the pipe gap between the first silencing pipe and the outer pipe, and the gas passing performance is improved.

Further, the wall thickness of the second sound-deadening tube 2 is different from that of the first sound-deadening tube 1. The chambers of different wall thickness have their own natural frequencies, and only sound waves of certain frequencies in the vicinity of the natural frequency of the chamber pass through the filter aperture, while sound waves of other frequencies cannot pass through the filter aperture and are only reflected back and forth in the chamber, so that sound waves of different wavelengths can be screened through the wall thickness. It should be noted that, the aperture through changing first filter hole 1a and second filter hole 2a also can play the effect of screening different wavelength sound waves to improve noise cancelling effect.

In order to improve the leakproofness of second hush pipe and first hush pipe, outer union coupling, the utility model discloses with second hush pipe 2 respectively with inner tube 1c with be connected platform 3a threaded connection, utilize the figure of screw thread pitch to play sealed effect, can also improve the stability of structure simultaneously.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (4)

1. A sintering furnace for producing zirconia comprises a furnace body, wherein an exhaust pipe is arranged on the furnace body, and the sintering furnace is characterized in that one end of the exhaust pipe is provided with a silencing device, the silencing device comprises a first silencing pipe, the side surface of the first silencing pipe is uniformly provided with a plurality of first filtering holes, one end of the first silencing pipe, which is far away from the exhaust pipe, comprises a detour pipe which is integrally formed with the first silencing pipe and an inner pipe which is coaxial with the first silencing pipe, the center of the inner pipe is provided with a second silencing pipe, one end of the second silencing pipe, which is in contact with the inner cavity of the first silencing pipe, is a closed end, one end of the second silencing pipe, which is far away from the inner cavity of the first silencing pipe, is an open end, a plurality of second filtering holes are uniformly distributed on the side surface, which is close to the open end, the outer pipes are arranged outside the first silencing pipe and the second silencing pipe, the first silencing pipe is in threaded connection with the outer pipe and extends out, the utility model discloses a first amortization pipe, including outer tube, connecting platform, connecting pipe, connecting core, sound-absorbing cotton, the cotton sticky tape of bubble is provided with to the outside cover of outer tube, the position that the open end of second amortization pipe is close to in the inside of outer tube is provided with the connecting platform that is used for supporting the second amortization pipe, the one end that the outer tube is close to the connecting platform is provided with the connecting pipe, be provided with the filter core that is located the outer tube inside between connecting pipe.

2. The sintering furnace for producing zirconia according to claim 1, wherein the longitudinal section of the detour pipe is an arc and the diameter of the arc is smaller than the radius of the first silencer duct.

3. The sintering furnace for zirconia production according to claim 2, wherein the second muffling pipe is screwed to the inner pipe and the connection table, respectively.

4. The sintering furnace for zirconia production according to claim 3, wherein the wall thickness of the second muffler pipe is different from the wall thickness of the first muffler pipe.

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