CN218475064U - High-temperature dust remover suitable for waste incineration - Google Patents
High-temperature dust remover suitable for waste incineration Download PDFInfo
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- CN218475064U CN218475064U CN202222455041.2U CN202222455041U CN218475064U CN 218475064 U CN218475064 U CN 218475064U CN 202222455041 U CN202222455041 U CN 202222455041U CN 218475064 U CN218475064 U CN 218475064U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model discloses a high-temperature dust collector suitable for waste incineration, which comprises a cyclone cylinder and a packing cylinder, wherein the cyclone cylinder comprises a straight cylinder section and a conical section, the side wall of the straight cylinder section is provided with a flue gas inlet with variable diameter, the lower end of the conical section is communicated with an ash discharge pipe, the ash discharge pipe is provided with an ash discharge flap valve, and the lower end of the ash discharge pipe is connected with an ash discharge spiral; the upper end and the lower end of the packing cylinder penetrate out of the cyclone cylinder, the middle part of the packing cylinder is located inside the cyclone cylinder, the middle part of the packing cylinder comprises a sealing section and a ventilating section, the lower end of the ventilating section is communicated with a discharging section, and packing balls are filled in the sealing section, the ventilating section and the discharging section. The utility model discloses a high temperature dust remover suitable for msw incineration can carry out high-efficient desorption to the flying dust granule in the flue gas under the high temperature, can carry out the filter material on line and change and carry out the deashing to can contain a certain amount of hydrated lime's filter material according to deashing efficiency dynamic adjustment dust remover pressure drop, accessible preparation simultaneously, make equipment have certain flue gas deacidification effect.
Description
Technical Field
The utility model belongs to the technical field of the technique of dust remover and specifically relates to a high temperature dust remover suitable for msw incineration is related to.
Background
Flue gas generated by waste incineration carries a large amount of fly ash, the fly ash has certain viscosity at high temperature, the particle size distribution range of the fly ash is wide, the minimum particle size is less than 1um and can reach 1cm at most, if the fly ash is not removed and directly enters a heating surface of a waste heat boiler, a large amount of fly ash can be adhered to the heating surface to cause heat transfer deterioration, if the fly ash is not removed in time, through-flow blockage can be caused, and if the fly ash is frequently cleaned on line by adopting modes of steam soot blowing, shock wave soot cleaning and the like, the heating surface can be seriously abraded, so that the service life of equipment is influenced.
Patent CN114082284B provides a system and method for the fractional purification of waste incineration flue gas, wherein a high-temperature dust removal device is arranged behind a waste heat boiler, and the dust removal device includes but is not limited to a ceramic filter device and a metal fiber filter device; patent CN206168132U provides a novel high temperature dust removing device, which utilizes a metal flexible membrane to form a filter cake on the surface of the flexible membrane by fly ash particles, so as to form a filtering effect on fine particles; patent CN213680553U provides a particle moving bed device for high temperature oil gas dust removal, which utilizes countercurrent exchange dust removal of semicoke particles and high temperature coal gas; patent CN214513597U provides a filtering and dust removing device with a rotary adsorption cylinder, which utilizes the rotary adsorption cylinder with built-in dust removing balls to remove dust particles; patent CN113289432A provides an energy-conserving improvement type granule bed dust remover, through the mode that heats up after cooling down earlier, reduces the flue gas volume to set up multilayer granule bed, reach the efficient dust removal effect. The existing high-temperature dust removal technology generally removes the fly ash by using a particle motion inertia mode (such as arranging a baffle, using a cyclone dust collector and the like), and has lower removal efficiency on small particles; flue gas generated by waste incineration contains a large amount of HCl, and is corrosive and cannot be tolerated by a metal filter bag; in addition, the fly ash in the waste incineration has certain cohesiveness, and the common dust removal equipment is difficult to maintain on line.
Patent CN114289196A discloses a cyclone separator with an inner sleeve and an outer sleeve, which reduces the radius of the inner sleeve, and adopts a low flow velocity between the inner sleeve and the outer sleeve, thereby reducing the possibility that fine particles are carried by flue gas and improving the dust removal effect; patent CN215940324U discloses a cyclone dust collector with a venturi exhaust pipe and a hole, which realizes secondary dust removal of the cyclone dust collector through secondary filtration of the hole and the venturi structure, but the scheme can not realize online dust removal of the hole.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, and provide a high temperature dust collector suitable for msw incineration, can carry out high-efficient desorption to the flying dust granule in the flue gas under high temperature (flue gas temperature is higher than 850 ℃), prevent that the flying dust from bonding to exhaust-heat boiler heating surface and causing and staiing, can carry out the filter material on line and change and carry out the deashing, and can be according to deashing efficiency dynamic adjustment dust remover pressure drop, the accessible preparation contains a certain amount of hydrated lime's filter material simultaneously, make equipment have certain flue gas deacidification effect.
In order to achieve the above object, the utility model discloses a high temperature dust remover suitable for waste incineration's concrete technical scheme as follows:
a high-temperature dust remover suitable for waste incineration comprises a cyclone cylinder and a packing cylinder, wherein the cyclone cylinder comprises a straight cylinder section and a conical section connected below the straight cylinder section, the side wall of the straight cylinder section is provided with a variable-diameter flue gas inlet, the lower end of the conical section is communicated with an ash discharge pipe, the ash discharge pipe is provided with an ash discharge flap valve, and the lower end of the ash discharge pipe is connected with an ash discharge spiral;
the upper end and the lower end of the packing cylinder penetrate out of the cyclone cylinder, the middle part of the packing cylinder is positioned in the cyclone cylinder, the middle part of the packing cylinder comprises a sealing section in a regular horn shape and an air permeable section in an inverted horn shape from top to bottom, the lower end of the air permeable section is communicated with a discharging section, the upper end of the discharging section is positioned in the cyclone cylinder, the lower end of the discharging section penetrates out of the cyclone cylinder, and the sealing section, the air permeable section and the discharging section are filled with packing balls;
the upper end of the sealing section is communicated with a feeding straight pipe section, the upper part of the feeding straight pipe section is communicated with a filler feeding port, a feeding flap valve is arranged at the joint of the filler feeding port and the feeding straight pipe section, the side wall of the feeding straight pipe section is communicated with a flue gas outlet,
the lower end of the material discharging section is communicated with a material discharging pipe, a material discharging flap valve is arranged on the material discharging pipe, and the lower end of the material discharging pipe is connected with a material discharging screw.
Further, a radar level indicator is arranged on the feeding straight pipe section.
Further, the diameter of the filler ball is 8-10cm.
Furthermore, the wall of the air-permeable section adopts a pattern plate with small holes with the diameter of 5-6cm or a strip-shaped grating plate with the distance of 5-6 cm.
Furthermore, the cylinder wall of the sealing section adopts a blind plate, and no opening is formed in the cylinder wall.
Furthermore, the cylinder wall of the discharging section adopts a blind plate, and no opening is formed in the cylinder wall.
Further, the inner wall of the cyclone cylinder and the inner and outer walls of the filler cylinder are coated with refractory materials or ceramic coatings.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the inner wall of the cyclone cylinder and the inner and outer walls of the filler cylinder are laid by adopting refractory materials or ceramic coatings, so that high-temperature corrosion generated by waste incineration smoke can be resisted, fly ash particles in the smoke can be efficiently removed, and the fly ash is prevented from being bonded to a heating surface of a waste heat boiler to cause contamination;
2. when the device is in operation, the filter material can be replaced online to perform ash removal, and the height of the filler in the filler cylinder can be dynamically adjusted according to the ash removal efficiency, so that the pressure drop of the dust remover is adjusted;
3. the filler ball can be made by mixing a certain amount of hydrated lime with the bottom slag of waste incineration, so that the equipment has a certain flue gas deacidification effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic structural view of a packing cartridge according to the present invention;
the symbols in the figure illustrate: 1. feeding a straight pipe section; 2. a flue gas outlet; 3. a cyclone; 4. a packing cylinder; 5. a filler-discharging flap valve; 6. arranging and screwing the filler; 7. ash discharge spiral; 8. ash discharging flap valves; 9. a flue gas inlet; 10. a radar level gauge; 11. feeding a flap valve; 12. a filler inlet; 13. a ventilation section; 14. a sealing section; 15. a discharge section; 16. and (4) discharging the filler pipe.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings and preferred embodiments for a high temperature dust collector suitable for waste incineration.
In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. do not represent the degree of importance of the parts, and therefore, should not be construed as limiting the present invention. The specific dimensions used in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.
Example 1:
referring to fig. 1-4, the present invention provides a technical solution: a high-temperature dust remover suitable for waste incineration comprises a cyclone cylinder 3 and a packing cylinder 4, wherein the cyclone cylinder 3 comprises a straight cylinder section and a conical section connected below the straight cylinder section, the side wall of the straight cylinder section is provided with a variable-diameter flue gas inlet 9, the lower end of the conical section is communicated with an ash discharge pipe, the ash discharge pipe is provided with an ash discharge flap valve 8, and the lower end of the ash discharge pipe is connected with an ash discharge spiral 7;
the upper end and the lower end of the packing cylinder 4 penetrate out of the cyclone cylinder 3, the middle part of the packing cylinder 4 is positioned in the cyclone cylinder 3, the middle part of the packing cylinder 4 comprises a sealing section 14 in a positive trumpet shape and an air permeable section 13 in an inverted trumpet shape from top to bottom, the lower end of the air permeable section 13 is communicated with a discharging section 15, the upper end of the discharging section 15 is positioned in the cyclone cylinder 3, the lower end of the discharging section 15 penetrates out of the cyclone cylinder 3, and the sealing section 14, the air permeable section 13 and the discharging section 15 are filled with packing balls;
the upper end of the sealing section 14 is communicated with a feeding straight pipe section 1, a filler feeding port 12 is communicated above the feeding straight pipe section 1, a feeding flap valve 11 is arranged at the joint of the filler feeding port 12 and the feeding straight pipe section 1, the side wall of the feeding straight pipe section 1 is communicated with a flue gas outlet 2,
the lower end of the material discharging section 15 is communicated with a material discharging and filling pipe 16, a material discharging and filling flap valve 5 is arranged on the material discharging and filling pipe 16, and a material discharging screw 6 is connected to the lower end of the material discharging and filling pipe.
Further, a radar level gauge 10 is arranged on the feeding straight pipe section 1.
Furthermore, the diameter of the filler balls is 8-10cm, and the diameter of the filler balls is larger than the gap of the pattern plate or the bar-shaped grating, so that the filler balls are prevented from falling out of the gap of the pattern plate or the bar-shaped grating.
Furthermore, the wall of the air permeable section 13 adopts a pattern plate with small holes with the diameter of 5-6cm or a strip-shaped grating plate with the distance of 5-6 cm.
Further, the wall of the sealing section 14 is a blind plate, and there is no opening on the wall.
Further, the cylinder wall of the discharge section 15 adopts a blind plate, and no opening is formed in the cylinder wall.
Further, the inner wall of the cyclone cylinder 3 and the inner and outer walls of the packing cylinder 4 are coated with a refractory material or a ceramic coating.
The working principle is as follows: when the cyclone dust-containing flue gas generating device operates, high-temperature dust-containing flue gas enters the cyclone 3 from the diameter-variable flue gas inlet 9, the flow velocity of the flue gas is increased due to the effect of the diameter-variable structure, large particles in the dust-containing flue gas cling to the wall surface of the cyclone 3 under the effect of inertia and then slide to a conical section under the effect of gravity, and the large particles are sent to a dust bin through the dust discharge turnplate valve 8 which is opened intermittently through the dust discharge screw 7; the lower part of the filler 4 is provided with a pattern plate or a grid, dust-containing smoke carrying small particles enters the filler cylinder 4 through holes of the pattern plate or the grid, filler balls with the diameter of 8-10cm are loaded in the filler cylinder 4, the small particles in the smoke continuously collide with the filler balls along with the smoke in the upward advancing process, and the small particles can be continuously adhered to the surfaces of the filler balls due to certain viscosity of the particles and form filter cakes in an irregular channel formed by the filler balls, so that the filtering effect is further strengthened. After passing through the packing cylinder 4, the dust-laden flue gas enters a subsequent device through the flue gas outlet 2.
The filler ball enters the filler barrel 4 through the filler feeding port 12, the feeding amount and the feeding speed are controlled by the feeding flap valve 11, the radar level gauge 10 can detect the filler height inside the filler barrel 4, and the material level height inside the filler barrel 4 can be flexibly controlled according to the dust removal requirement. After the particles are adsorbed on the filler balls, the particles are sent out through a filler discharge flap valve 5 through a filler discharge screw 6.
Particularly, the filler ball can be manufactured by mixing slag generated by burning garbage and slaked lime, and acid gases such as HCL (hydrochloric acid), SO2 and the like contained in the flue gas can react with the slaked lime and be removed after the flue gas passes through the slaked lime; the discharged filler balls can be recycled after surface ash is removed by a vibrating screen, or the discharged filler balls can be directly crushed to be used as raw materials to manufacture the filler balls again.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (7)
1. The utility model provides a high temperature dust remover suitable for msw incineration which characterized in that: the cyclone comprises a cyclone cylinder (3) and a packing cylinder (4), wherein the cyclone cylinder (3) comprises a straight cylinder section and a conical section connected below the straight cylinder section, the side wall of the straight cylinder section is provided with a variable-diameter flue gas inlet (9), the lower end of the conical section is communicated with an ash discharge pipe, the ash discharge pipe is provided with an ash discharge flap valve (8), and the lower end of the ash discharge pipe is connected with an ash discharge spiral (7);
the cyclone packing device is characterized in that the upper end and the lower end of the packing cylinder (4) penetrate out of the cyclone cylinder (3), the middle part of the packing cylinder (4) is positioned in the cyclone cylinder (3), the middle part of the packing cylinder (4) comprises a sealing section (14) in a regular horn shape and an air permeable section (13) in an inverted horn shape from top to bottom, the lower end of the air permeable section (13) is communicated with a discharging section (15), the upper end of the discharging section (15) is positioned in the cyclone cylinder (3), the lower end of the discharging section (15) penetrates out of the cyclone cylinder (3), and packing balls are filled in the sealing section (14), the air permeable section (13) and the discharging section (15);
the upper end of the sealing section (14) is communicated with a feeding straight pipe section (1), a filler feeding port (12) is communicated above the feeding straight pipe section (1), a feeding flap valve (11) is arranged at the joint of the filler feeding port (12) and the feeding straight pipe section (1), the side wall of the feeding straight pipe section (1) is communicated with a flue gas outlet (2),
the lower end of the material discharging section (15) is communicated with a material discharging and filling pipe (16), a material discharging and filling flap valve (5) is arranged on the material discharging and filling pipe (16), and a material discharging and filling screw (6) is connected to the lower end of the material discharging and filling pipe.
2. A high temperature dust remover suitable for waste incineration according to claim 1, characterized in that a radar level gauge (10) is arranged on the feeding straight pipe section (1).
3. A high temperature dust collector suitable for use in the incineration of refuse according to claim 1, characterised in that the diameter of the filler balls is 8-10cm.
4. A high-temperature dust collector suitable for waste incineration according to claim 1, characterized in that the cylinder wall of the air-permeable section (13) adopts a pattern plate with small holes with the diameter of 5-6cm or a strip-shaped grating plate with the distance of 5-6 cm.
5. A high temperature precipitator suitable for use in the incineration of refuse according to claim 1, characterised in that the wall of the sealing section (14) is blind and has no openings.
6. A high temperature precipitator suitable for use in the incineration of refuse according to claim 1, characterised in that the wall of the discharge section (15) is blind and has no openings.
7. A high temperature precipitator suitable for use in the incineration of refuse, according to claim 1, wherein the inner walls of the cyclone (3) and the inner and outer walls of the stuffing cylinder (4) are coated with a refractory material or a ceramic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222455041.2U CN218475064U (en) | 2022-09-16 | 2022-09-16 | High-temperature dust remover suitable for waste incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222455041.2U CN218475064U (en) | 2022-09-16 | 2022-09-16 | High-temperature dust remover suitable for waste incineration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218475064U true CN218475064U (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222455041.2U Active CN218475064U (en) | 2022-09-16 | 2022-09-16 | High-temperature dust remover suitable for waste incineration |
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| Country | Link |
|---|---|
| CN (1) | CN218475064U (en) |
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- 2022-09-16 CN CN202222455041.2U patent/CN218475064U/en active Active
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