CN202037145U

CN202037145U - Low-frequency sound-wave dust remover

Info

Publication number: CN202037145U
Application number: CN201120005373XU
Authority: CN
Inventors: 杜志义; 姜常陈
Original assignee: SHIJIAZHUANG MATERIALS INDUSTRY GROUP Co Ltd
Current assignee: SHIJIAZHUANG MATERIALS INDUSTRY GROUP Co Ltd
Priority date: 2011-01-10
Filing date: 2011-01-10
Publication date: 2011-11-16
Anticipated expiration: 2021-01-10

Abstract

The utility model discloses a low-frequency sound-wave dust remover including a three-phase motor, an air inlet pipe, an air outlet pipe, a rotary disk, a rotor, and a surge tank arranged between the air inlet pipe and the rotary disk. The outlet opening of the surge tank is connected with the air inlet pipe, and the outlet opening of the surge tank is connected with the rotary disk through a pipe. The rotor is a circular structure having a cavity arranged on the center thereof, and through holes are evenly distributed along the circumferential direction of the sidewalls of the circular structure. An arched channel is arranged in the rotary disk which is arranged in the cavity of the rotor, the rotary disk and the rotor being in clearance fit. The rotor, the rotary disk and the three-phase motor are covered with a protective cover, and the air outlet pipe coaxial with the outlet opening of the arched channel is fixed on the external sidewall of the protective cover. The low-frequency sound-wave dust remover provides steady air flow, has dustproof effects and protects the three-phase motor. The service lifetime of the device can be prolonged.

Description

The low-frequency sound wave dust remover

Technical field

The utility model relates to a kind of being contained in and utilizes ultrasonic wave to remove the device of dust stratification on the cleaner, specifically is a kind of low-frequency sound wave dust remover.

Background technology

Acoustic wave soot blower is that a kind of sound wave that utilizes acts on dust stratification on the article surface, make dust take place loosening and be shifted and reach the more advanced ash removing equipment of deashing purpose, it mainly is to be used to remove coal-burning boiler, dust stratification in the equipment such as deduster and coal bunker, mediation on the hopper, its principle is to utilize sound wave generating device that compressed air or high temperature and high pressure steam flow through a break-make frequency adjustable of being made up of motor-driven rotor with porous to produce the superpower sound wave of frequency adjustable, this superpower sound wave can form the acoustic wavefield effect in the space of acoustic wave soot blower is installed, dust stratification particle on this space inwall is in the displacement suspended state owing to the effect that is subjected to the acoustic wavefield effect produces surging, make dust stratification break away from attaching surface by self gravitation and external action, be eliminated.At present, sound wave generating device is made up of rotating disk and rotor in the existing low-frequency sound wave dust remover, rotating disk links to each other with discharge pipe, periphery of rotor is scattered and is provided with through hole, and required air is general direct to be extracted from air, rotates by three phase electric machine and drives the rotor rotation, because ash removing equipment ambient air air pressure shakiness, this directly extracting air from air, air-flow can change to the impact of rotor, the long-term life-span of using meeting minimizing equipment; Because the working environment of general ash removing equipment is very abominable, in the space work that dust fills the air, therefore need take corresponding proofing dust and protecting for a long time to equipment.

The utility model content

The technical problems to be solved in the utility model provides a kind of energy and gives supply voltage stabilizing air-flow, and has the low-frequency sound wave dust remover of dust prevention.

For solving the problems of the technologies described above; technical solution adopted in the utility model is: a kind of low-frequency sound wave dust remover; comprise three phase electric machine; air inlet pipe; escape pipe; rotating disk and rotor; it is characterized in that: between air inlet pipe and rotating disk, be provided with vacuum tank; the air inlet of described vacuum tank is connected with described air inlet pipe; the gas outlet of vacuum tank is connected with described rotating disk by pipeline; described rotor is the circular configuration that the center is provided with cavity; its sidewall circumferentially is evenly equipped with through hole; described rotating disk inside is provided with the arc runner; it places in the cavity of described rotor; both matched in clearance; described rotor; rotating disk and three phase electric machine outside are covered with protective cover, are connected with on the lateral wall of described protective cover and the coaxial escape pipe of described arc runner exit.

Described escape pipe comprises conical pipe and adjustable blast pipe, and described conical pipe is connected by clip with protective cover, and described adjustable blast pipe is connected by flange with conical pipe.Escape pipe is made up of two sections pipes in the utility model, when its structure is provided with in the actual installation process, cooperate easily with the need deashing device, wherein adjustable blast pipe is connected by flange with conical pipe, can the direction of adjustable blast pipe be set according to actual conditions, to satisfy installation requirements.

One end of described adjustable blast pipe is a curve bend, and the other end is horn-like increaser.In blast pipe, because sound wave is to be spread to low pressure by high pressure, for the coal ash in the boiler is removed, it is smooth that sound wave is propagated, and therefore horn-like increaser is set, and reduces sound wave and transmit resistance, better to the removing effect of coal ash.

The air inlet of described air inlet pipe is provided with steam-water separator.The effect of steam-water separator is that airborne aqueous vapor is separated in the utility model, and making the air in the access arrangement is dry air, when equipment in long-play, avoided the generation of air corrosion, prolonged service life.

Operation principle of the present utility model is: convert the air that compresses to high-power sound wave (a kind of pressure wave of propagating with the form of dilatational wave) in space medium and send into by in the ash removing equipment (as boiler), dust stratification is subjected to drawing repeatedly, press, pushing away and do the time spent with the dilatational wave that certain frequency alternately changes in equipment, thereby fluctuation can take place dust stratification comes off, under the effect with air draught and self gravitation, sink to furnace bottom and get rid of by ash bucket.The utility model is to drive the rotor rotation by three phase electric machine, makes equally distributed through hole cutting pressure-air on the rotor, cooperates with arc runner on the rotating disk, produces the sound wave of certain frequency, forms sound field in blast pipe, the purpose of realization sound wave ashing.

Adopt the beneficial effect that technique scheme produced to be: 1. the utility model has increased vacuum tank between air inlet pipe and rotating disk, has guaranteed that the air-flow pressure in the supply arrangement is stable, protection equipment; 2. be provided with protective cover outside three phase electric machine, rotor and rotating disk, make the utility model have the dustproof effect in adverse circumstances, the protection three phase electric machine normally moves; 3. increased steam-water separator at air inlet, making the air in the access arrangement is dry air, prolongs service life of equipment.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model;

Wherein, 1, steam-water separator, 2, air inlet pipe, 3, vacuum tank, 4, adjustable blast pipe, 5, conical pipe, 6, clip, 7, rotating disk, 8, three phase electric machine, 9, rotor, 10, protective cover.

The specific embodiment

1 as can be known with reference to the accompanying drawings; the utility model is specifically related to a kind of low-frequency sound wave dust remover; comprise three phase electric machine 8; air inlet pipe 2; escape pipe; rotating disk 7 and rotor 9; it is characterized in that: between air inlet pipe 2 and rotating disk 7, be provided with vacuum tank 3; the air inlet of described vacuum tank 3 is connected with described air inlet pipe 2; the gas outlet of vacuum tank 3 is connected with described rotating disk 7 by pipeline; described rotor 9 is provided with the circular configuration of cavity for the center; its sidewall circumferentially is evenly equipped with through hole; described rotating disk 7 inside are provided with the arc runner; it places in the cavity of described rotor 9; both matched in clearance; described rotor 9; rotating disk 7 and three phase electric machine 8 outsides are covered with protective cover 10, are connected with on the lateral wall of described protective cover 10 and the coaxial escape pipe of described arc runner exit.

Described escape pipe comprises conical pipe 5 and adjustable blast pipe 4, and described conical pipe 5 is connected by clip 6 with protective cover 10, and described adjustable blast pipe 4 and conical pipe 5 are connected by flange.

One end of described adjustable blast pipe 4 is a curve bend, and the other end is horn-like increaser.

The air inlet of described air inlet pipe 2 is provided with steam-water separator 1.

The course of work of the present utility model is as follows: at first drive rotor 9 rotation at a high speed with three phase electric machine 8, then by aqueous vapor and foreign material in steam-water separator 1 separation of air, in vacuum tank 3, continue injecting compressed air or high temperature and high pressure steam through air inlet pipe 2, because gas pressure, gas input rotating disk 7 in the vacuum tank 3, gas forms the logical passage cutting that the state high frequency changes of closing by rotating disk 7 and rotor 9, enter and form superpower sound wave in the conical pipe 5, input to working face through adjustable blast pipe 4 at last.During the utility model work, can change frequency of sound wave by regulating the rotating speed of three phase electric machine 8, in actual production, for boiler ash removal is reached best effects, generally setting frequency of sound wave is the 20-30 hertz, is low-frequency sound generator.

The utility model can be used for being mainly used in boiler ash removal, install and use at the position that burner hearth, pendant superheater, convection superheater, reheater, economizer, air preheater and electric cleaner, sack cleaner, flue, chimney and other production facility dust stratification (or slagging scorification) seriously must be removed, and on tens of Industrial Boilers such as tobacco business, chemical industry, cable industry and thermal power station's boiler, use, ash-removal effect is remarkable, obtained user's favorable comment, and tangible energy-saving benefit has been arranged.

Claims

1. low-frequency sound wave dust remover; comprise three phase electric machine (8); air inlet pipe (2); escape pipe; rotating disk (7) and rotor (9); it is characterized in that: between air inlet pipe (2) and rotating disk (7), be provided with vacuum tank (3); the air inlet of described vacuum tank (3) is connected with described air inlet pipe (2); the gas outlet of described vacuum tank (3) is connected with described rotating disk (7) by pipeline; described rotor (9) is provided with the circular configuration of cavity for the center; its sidewall circumferentially is evenly equipped with through hole; described rotating disk (7) inside is provided with the arc runner; it places in the cavity of described rotor (9); both matched in clearance; described rotor (9); rotating disk (7) and three phase electric machine (8) outside are covered with protective cover (10), are connected with on the lateral wall of described protective cover (10) and the coaxial escape pipe of described arc runner exit.

2. low-frequency sound wave dust remover according to claim 1; it is characterized in that described escape pipe comprises conical pipe (5) and adjustable blast pipe (4); described conical pipe (5) is connected by clip (6) with protective cover (10), and described adjustable blast pipe (4) is connected by flange with conical pipe (5).

3. low-frequency sound wave dust remover according to claim 2, an end that it is characterized in that described adjustable blast pipe (4) is a curve bend, the other end is horn-like increaser.

4. low-frequency sound wave dust remover according to claim 1 is characterized in that the air inlet of described air inlet pipe (2) is provided with steam-water separator (1).