CN105665155A

CN105665155A - Novel cyclone dust collector

Info

Publication number: CN105665155A
Application number: CN201610093846.3A
Authority: CN
Inventors: 陈树建; 陈伟; 郎成岗
Original assignee: Great Shock Boiler Industrial (kunshan) Co Ltd
Current assignee: Great Shock Boiler Industrial (kunshan) Co Ltd
Priority date: 2016-02-22
Filing date: 2016-02-22
Publication date: 2016-06-15

Abstract

The invention discloses a novel cyclone dust collector. The novel cyclone dust collector is mainly composed of a smoke inlet, a cylinder, an exhaust pipe, a cone and a smoke outlet. The exhaust pipe is formed in the manner that dense pipe bodies are arranged along the inner side of the exhaust pipe. Every two adjacent pipe bodies are sealed and welded through flat steel so that it can be guaranteed that smoke rotationally flows downwards. Due to the fact that longitudinal scouring exists between the smoke and the pipe bodies, the dust accumulating probability of the pipe bodies is very low. Meanwhile, due to the cooling effect of water in the pipe bodies, the temperature of smoke around the pipe bodies is reduced, and dust settlement is facilitated. According to the novel cyclone dust collector, by means of the simple improvement, dust removing of high-temperature dusty gas is achieved, and meanwhile the product cost is reduced.

Description

A kind of new type cyclone dust collector

Technical field

The present invention relates to heating equipment and technical field of environment protection equipment, relate to a kind of new type cyclone dust collector more definitely.

Background technology

Cyclone dust extractor is to utilize centrifugal force produced by swirling eddy by grit from closing the dust arrester separated dust and gas stream. It has simple in construction, small volume, does not need special auxiliary device, and cost is relatively low. and resistance is medium, movement-less part in device, operates the advantages such as easy to maintenance. Cyclone dust extractor is generally used for the granule of more than trapping 5-15 micron. and efficiency of dust collection is up to more than 80%.

Conventional cyclone dust extractor, its structure is mainly made up of gas approach, cylinder, exhaustor, cone, exhanst gas outlet, after dust-contained airflow is entered cleaner unit by tangential inlet, air-flow rotates in cleaner unit, grit in air-flow outer wall under centrifugal action moves, arrive wall, and under air-flow and action of gravity, fall into ash bucket along wall and reach the purpose separated. The overwhelming majority of swirling eddy along wall from cylinder, move bottom cone from top to bottom in the shape of a spiral, form the outward turning dust-contained airflow declined, the grit that density is far longer than gas by produced centrifugal force in strong rotary course gets rid of to wall, grit, once contact with wall, just loses inertia force and leans on the momentum of entrance velocity and the gravity of self to fall to entering flue-dust retainer along wall. Rotating the air-flow declined to arrive after bottom cone. the axis part along cleaner unit is transferred upwards. and form the interior rotational gas flow risen, and discharged by the exhaustor of cleaner unit. From another fraction air-flow of air inlet person who lives in exile, then flow to cyclone dust extractor top cover place, then flow downward outside exhaustor, when reaching exhaustor lower end, namely counter steer is together discharged from exhaustor with the central gas stream risen, be dispersed in grit therein also in company with being pulled away. But this kind of cyclone dust extractor still has following deficiency: for the temperature high-temperature dusty gas more than 800 DEG C, in gas after cyclone dust removal, the ash of part melting state is likely to be bonded to the metal surface of equipment for after-treatment, form black dirt fine and close, that be difficult to clean off, when particularly equipment for after-treatment is waste heat boiler, generally requires and a bigger fume sedimentation chamber is set; Exhaust pipe length is too short, and partial fume also tends to have little time inertial separation, just discharges along aerofluxus exhaustor; Conical section is long, causes that investment of equipment increases.

Summary of the invention

In view of the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of energy separating high-temp gas dirt can save again the new type cyclone dust collector of cost.

For achieving the above object, the invention provides a kind of new type cyclone dust collector,

Including: gas approach, cylinder, exhaustor, cone, exhanst gas outlet. It is characterized in that: gas approach, in the side of cleaner unit, is connected with cylinder, cylinder is connected below the conical section of cleaner unit, connects exhanst gas outlet outside exhaustor. Exhaustor is made up of upper and lower header and pipe, and intensive pipe forms cylindrical heating surface inside exhaustor, seals with band steel and welds, to ensure the downward eddy flow of flue gas between pipe with pipe; Owing to being parallel baffled between flue gas and pipe, therefore the probability of its dust stratification is only small, simultaneously as the cooling effect of water in pipe, the flue-gas temperature near pipe reduces, and is conducive to the sedimentation of dust, and flue gas exit temperature drops to less than 750 DEG C simultaneously. Cone and horizontal line angle are between 50o～75 °, and the length of more conventional cyclone dust extractor conical section is greatly reduced, thus saving material, reduce cost.

It is preferred that cone and horizontal angle are 60 °.

The present invention provides the original cyclone separator advantage of a kind of maintenance, flue-gas temperature can be reduced to less than 750 DEG C again simultaneously, to meet the requirement of the viscous ash of equipment for after-treatment particularly waste heat boiler equipment.

Accompanying drawing explanation

Fig. 1 is the structural representation of new type cyclone dust collector of the present invention.

Detailed description of the invention

As it is shown in figure 1, be cyclone duster structure schematic diagram of the present invention. The cyclone dust extractor of the present invention includes: gas approach 1, cylinder 2, exhaustor 3, cone 4, exhanst gas outlet 5. After dust-contained airflow is entered cleaner unit by gas approach 1, air-flow rotates in cleaner unit cylinder 2. Exhaustor 3 is made up of inside exhaustor intensive pipe, seals with band steel and welds, to ensure the downward eddy flow of flue gas between pipe with pipe; Owing to being parallel baffled between flue gas and pipe, therefore the probability of its dust stratification is only small, simultaneously as the cooling effect of water in pipe, the flue-gas temperature near pipe reduces, and is conducive to the sedimentation of dust, exhanst gas outlet 5 temperature can be made to drop to less than 750 DEG C simultaneously. The overwhelming majority of swirling eddy along wall from cylinder, move bottom cone 4 from top to bottom in the shape of a spiral, form the outward turning dust-contained airflow declined, the grit that density is far longer than gas by produced centrifugal force in strong rotary course gets rid of to wall, grit, once contact with wall, just loses inertia force and leans on the momentum of entrance velocity and the gravity of self to fall to entering flue-dust retainer along wall. Rotating the air-flow declined to arrive after bottom cone 4. the axis part along cleaner unit is transferred upwards. and form the interior rotational gas flow risen, and the exhaustor 3 and exhanst gas outlet 5 by cleaner unit is discharged.

Claims

1. a new type cyclone dust collector, including: gas approach, cylinder, exhaustor, cone, exhanst gas outlet.

2. it is characterized in that: gas approach, in the side of cleaner unit, is connected with cylinder, cylinder is connected below the conical section of cleaner unit, connects exhanst gas outlet outside exhaustor.

3. a kind of new type cyclone dust collector according to claim 1, it is characterised in that: the exhaustor of described cyclone dust extractor is formed cylindrical heating surface by intensive pipe inside exhaustor.

4. a kind of new type cyclone dust collector according to claim 1, it is characterised in that: the exhaustor of described cyclone dust extractor, seal with band steel between pipe with pipe and weld.

5. a kind of new type cyclone dust collector according to claim 1, it is characterised in that: the exhaustor of described cyclone dust extractor, it is full of cold water in exhaustor pipe.

6. a kind of new type cyclone dust collector according to claim 1, it is characterised in that: the conical section of described cyclone dust extractor and horizontal angle are 50 °～75 °.