CN212057348U - Waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material - Google Patents
Waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material Download PDFInfo
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- CN212057348U CN212057348U CN202020547469.8U CN202020547469U CN212057348U CN 212057348 U CN212057348 U CN 212057348U CN 202020547469 U CN202020547469 U CN 202020547469U CN 212057348 U CN212057348 U CN 212057348U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a msw incineration flue gas dust removal and waste heat utilization equipment of removable dust removal filter material, which comprises a housin, the one end welded connection of casing has the msw incineration flue gas entry, the other end welded connection of casing has the msw incineration exhanst gas outlet, the upper surface intermediate position of casing runs through to install the filter material and fills the fill, the one end that the fill was filled to the filter material is provided with first valve, the other end that the fill was filled to the filter material is provided with the second valve, the upper surface of casing is close to fill the filter material fill and runs through and install the preheating coil pipe, the inside packing of casing is provided with the filter material granule, the lower surface of casing evenly. The utility model discloses can select the filter material granule of different material properties according to the flue gas temperature condition, so the heat resistance is better, can carry out the change of local filter material granule according to the operation effect, reduces the use of new filter material, and then has reduced the operation maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment technique and specifically relates to a waste incineration flue gas dust removal and waste heat utilization device of removable dust removal filter material is related to.
Background
With the continuous development of the urbanization process of China, "the refuse city wall" becomes a big problem which puzzles the urban environment of China gradually, at present, the main technologies of refuse treatment include incineration, sanitary landfill, compost and the like, the sanitary landfill technology is the earliest traditional mode and is once the main domestic refuse treatment mode, but the defects are that the occupied land is large, the risk of secondary pollution is large, the modern domestic refuse incineration power generation technology can effectively treat the domestic refuse and can utilize waste heat to generate electricity to surf the internet, the modern domestic refuse incineration power generation technology is an important way for solving the reduction, recycling and harmlessness of the domestic refuse, and the technology gradually develops into the domestic and foreign mainstream domestic refuse treatment mode.
Domestic garbage in China is mainly collected in a mixed mode, the garbage is low in heat value and not easy to burn completely, smoke components generated by garbage incineration are extremely complex, main harmful substances in the smoke comprise fly ash particles, dioxin, acid gas and heavy metals, if the pollution generated by the household garbage incineration flue gas cannot be effectively controlled and treated, the pollution can cause great harm to the ecological environment and human health, at present, the emission standard of the smoke pollutants discharged by the household garbage incineration flue gas in China is more and more strict, so the requirement for the high-efficiency flue gas dedusting and purifying process is increasingly prominent, meanwhile, the temperature of the flue gas generated by the waste incineration is above 800 ℃, the temperature is 190-230 ℃ after the power generation by the waste heat boiler, and a certain waste heat utilization value is achieved.
In realizing the utility model discloses the in-process, utility model people discover to have at least among the prior art as follows the problem and do not obtain solving: 1. the existing technology for dust removal of waste incineration flue gas mainly comprises electric dust removal and bag dust removal, wherein the main defects of the electric dust removal are that dioxin is difficult to remove, the small particle dust collection efficiency is low (less than 20 percent), the adaptability to change of chemical components of flue gas is poor, and the main defects of the bag dust removal are that the heat resistance is poor (140-160 ℃), the flue gas resistance is large, and because the adhesion and the content of large-diameter particulate matters in the waste incineration flue gas are more, filter cloth is easy to block in operation, the filter cloth replacement frequency is high, and the system operation and maintenance cost is high; 2. at present, the waste heat recovery of waste incineration flue gas is to recover low-grade waste heat at about 140-160 ℃ after the flue gas purification (desulfurization and bag type dust removal) treatment is finished, and a method of a heat pump or a heat pipe exchanger is adopted, so that the main defects are that the equipment structure is complex, the system cost is high, and the operation and maintenance cost is high.
Therefore, the device for removing dust from the waste incineration flue gas and utilizing the waste heat, with the replaceable dust removal filter material, is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waste incineration flue gas dedusting and waste heat utilization device with replaceable dedusting filter materials, which can select filter material particles with different material properties according to the temperature condition of flue gas, so the heat resistance is better, the local filter material particles can be replaced according to the operation effect, the use of new filter materials is reduced, further reducing the operation and maintenance cost, in addition, the technical proposal provided by the utility model integrates the dust removal and the waste heat recovery together for realization, the occupied area is small, the equipment cost is low, simultaneously, because the dust removal technical proposal provided by the utility model is high temperature resistant, the flue gas waste heat with higher temperature (200 ℃ -500 ℃) can be recovered, the flue gas waste heat recovery quantity is larger, the waste heat of the waste incineration flue gas is utilized to preheat combustion air, so that the waste with low calorific value can be independently combusted, the energy-saving effect is better, and the problems in the background art are solved.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a msw incineration flue gas dust removal and waste heat utilization equipment of removable dust removal filter material, includes the casing, the one end welded connection of casing has the msw incineration flue gas entry, the other end welded connection of casing has the msw incineration exhanst gas outlet, the upper surface intermediate position of casing runs through to install the filter material and fills and fight, the one end that the fill was filled to the filter material is provided with first valve, the other end that the fill was filled to the filter material is provided with the second valve, the upper surface of casing is close to the filter material and fills to fight and runs through and install the preheating coil, the inside packing of casing is provided with the filter material granule, the lower surface of.
The utility model provides a technical scheme is because of the filter material granule that can select different material performance according to the flue gas temperature condition, so the heat resistance is better, can carry out the change of local filter material granule according to the operation effect, reduces the use of new filter material, and then has reduced the operation maintenance cost, in addition, the utility model provides a technical scheme concentrates on dust removal and waste heat recovery to realize together, and area is little, equipment cost is low, simultaneously, because the utility model provides a dust removal technical scheme is high temperature resistant, can retrieve the flue gas waste heat of higher temperature (200 ℃ -500 ℃), and is bigger to flue gas waste heat recovery volume, utilizes the waste heat of msw incineration flue gas to preheat combustion-supporting air, makes the rubbish of low calorific value also can independently burn, and energy-conserving effect is better.
Preferably, the filter material replacing device comprises a filter material discharging hopper which is arranged on the lower surface of the shell in a penetrating mode, a filter material discharging door is arranged on the side surface of the filter material discharging hopper in a penetrating mode, a filter material ash discharging baffle is arranged at the lower end of the filter material discharging hopper, an ash discharging unit is fixedly arranged at the lower end of the filter material ash discharging baffle, a fourth valve is arranged at the upper end of the side surface of the ash discharging unit, and a third valve is arranged at the lower end of the side surface of the ash discharging unit.
The filter material replacing device can remove and replace the filter material discharging door arranged at the lower end, is convenient to replace materials, and is simple in structure.
Preferably, a plurality of ash discharging holes are uniformly arranged on the upper surface of the filter material ash discharging baffle in a penetrating manner, and the diameters of the ash discharging holes are larger than the particle diameters of filter material particles.
The ash discharge hole can be in a hole shape or a strip groove shape, the diameter of the ash discharge hole is larger than the particle diameter of the filter material particles, and the filter device can ensure that the filter device can filter the ash particles in the smoke and prevent the filter particles from being filtered together.
Preferably, the preheating coil is a member with an S-shaped structure, and the inside of the preheating coil is filled with a heating medium.
The preheating coil pipe is filled with a heating medium which can be water or air, and combustion-supporting air is preheated through smoke waste heat, so that garbage with low heat value can be independently combusted, and the energy-saving effect is better.
Preferably, the preheating coil, the filter material filling hopper, the filter material replacing device and the shell are all provided with sealant at the connecting positions.
The preheating coil, the filter material filling hopper, the filter material replacing device and the shell are all provided with sealant, the overall sealing performance of the device can be guaranteed, and smoke gas leakage is prevented.
Compared with the prior art, the beneficial effects of the utility model are that:
1. compared with the prior electric dust removal technology, the utility model provides a technical scheme can adsorb harmful components such as desorption dioxin, heavy metal betterly, and it is stronger to the change adaptability of msw incineration flue gas chemical composition, because the adsorption performance of filter material granule can be with from being less than 20% improvement to about 90% to the collection efficiency of tiny particle (< 1 μm).
2. Compared with the prior cloth bag dust removal technology, the utility model provides a technical scheme is because of can selecting the filter material granule of different material performance according to the flue gas temperature condition, so the heat resistance is better, can carry out the change of local filter material granule according to the operation effect, reduces the use of new filter material, and then has reduced the operation maintenance cost.
3. Compared with the prior art of waste incineration flue gas waste heat recovery, the utility model provides a technical scheme will remove dust and waste heat recovery concentrates on realizing together, and area is little, equipment cost is low, simultaneously, because the utility model provides a dust removal technical scheme is high temperature resistant, can retrieve the flue gas waste heat of higher temperature (200 ℃ -500 ℃), and is bigger to flue gas waste heat recovery volume, and energy-conserving effect is better.
4. At present, the rubbish of China is mostly mixed and collected, and the moisture is higher in the rubbish, leads to rubbish calorific value to hang down, and high calorific value fuel such as coal needs to be mixed sometimes and burns together, the extravagant energy, the utility model discloses utilize the waste heat of msw incineration flue gas to preheat combustion-supporting air, make the rubbish of low calorific value also can independently burn, energy-conserving effectual.
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 embodiments or the technical solutions in the prior art will be briefly described 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 creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the filter material replacing device of the present invention;
FIG. 3 is a schematic view of the filter material dust-discharging baffle of the present invention;
fig. 4 is a flow chart of the technical solution of the present invention.
Description of reference numerals:
in the figure: 1. a waste incineration flue gas inlet; 2. filtering material particles; 3. a filter material replacing device; 31. the filter material is discharged out of the hopper; 32. a filter material discharge door; 33. an ash discharge unit; 34. a third valve; 35. a fourth valve; 36. a filter material ash discharge baffle; 361. ash discharging holes; 4. a waste incineration flue gas outlet; 5. a housing; 6. preheating a coil pipe; 7. a first valve; 8. filling a filter material into the hopper; 9. a second valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the utility model provides a technical solution of a waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material:
the utility model provides a msw incineration flue gas dust removal and waste heat utilization equipment of removable dust removal filter material, as shown in figure 1, includes casing 5, the one end welded connection of casing 5 has msw incineration flue gas entry 1, the other end welded connection of casing 5 has msw incineration exhanst gas outlet 4, the upper surface intermediate position of casing 5 runs through to install the filter material and fills and fight 8, the one end that the filter material was filled and is fought 8 is provided with first valve 7, the other end that the filter material was filled and is fought 8 is provided with second valve 9, the upper surface of casing 5 is close to the filter material and fills and fight 8 and run through and install preheating coil 6, the inside packing of casing 5 is provided with filter material granule 2, the lower surface of casing 5 evenly is provided with.
Through adopting the technical scheme, the utility model provides a technical scheme is because of can selecting the filter material granule 2 of different material properties according to the flue gas temperature condition, so the heat resistance is better, can carry out local filter material granule 2's change according to the operation effect, reduces the use of new filter material, and then has reduced the operation maintenance cost, in addition, the utility model provides a technical scheme will remove dust and waste heat recovery concentrates on realizing together, and area is little, equipment cost is low, simultaneously, because the utility model provides a dust removal technical scheme is high temperature resistant, can retrieve the flue gas waste heat of higher temperature (200 ℃ -500 ℃), and is bigger to flue gas waste heat recovery volume, utilizes the waste heat of msw incineration flue gas to preheat combustion-supporting air, makes the rubbish of low calorific value also can independently burn, and energy-conserving effect is better.
Specifically, as shown in fig. 2, the filter material replacing device 3 includes a filter material discharging hopper 31 installed on the lower surface of the housing 5 in a penetrating manner, a filter material discharging door 32 is installed on the side surface of the filter material discharging hopper 31 in a penetrating manner, a filter material ash discharging baffle 36 is arranged at the lower end of the filter material discharging hopper 31, an ash discharging unit 33 is fixedly installed at the lower end of the filter material ash discharging baffle 36, a fourth valve 35 is arranged at the upper end of the side surface of the ash discharging unit 33, and a third valve 34 is arranged at the lower end of the side surface of the ash discharging unit 33.
Through adopting above-mentioned technical scheme, filter material change device 3 can get rid of through the filter material discharge door 32 that the lower extreme set up and change, convenient reloading, simple structure in addition, unload grey baffle 36 and unload grey unit 33 through the filter material and can filter the grits in the flue gas.
Specifically, as shown in fig. 3, a plurality of dust discharging holes 361 are uniformly formed in the upper surface of the filter material dust discharging baffle 36 in a penetrating manner, and the diameters of the dust discharging holes 361 are larger than the particle diameters of the filter material particles 2.
By adopting the technical scheme, the ash discharging hole 361 can be in a hole shape or a strip groove shape, the diameter of the ash discharging hole 361 is larger than the particle diameter of the filter material particles 2, and the filter device can prevent the filter particles 2 from being filtered together when filtering the ash particles in the smoke.
Specifically, as shown in fig. 1, the preheating coil 6 is a member having an S-shaped structure, and the inside of the preheating coil 6 is filled with a heating medium.
Through adopting above-mentioned technical scheme, preheating coil 6 is inside to be filled has heating medium can be one of water or air, preheats combustion-supporting air through the flue gas waste heat, makes the rubbish of low calorific value also can independently burn, and energy-conserving effect is better.
Specifically, as shown in fig. 1, the preheating coil 6, the filter material filling hopper 8, and the connection position of the filter material replacing device 3 and the casing 5 are all provided with a sealant.
Through adopting above-mentioned technical scheme, preheating coil 6, filter material are filled fill 8, filter material change device 3 and casing 5's hookup location all is provided with sealed glue, can guarantee the holistic leakproofness of device, prevent that the flue gas from revealing.
The working principle is as follows: the utility model provides a technical scheme is because of can selecting the filter material granule 2 of different material properties according to the flue gas temperature condition, so the heat resistance is better, can carry out local filter material granule 2's change according to the operation effect, reduces the use of new filter material, and then has reduced the operation maintenance cost, in addition, the utility model provides a technical scheme concentrates on dust removal and waste heat recovery to realize together, and area is little, equipment cost is low, simultaneously, because the utility model provides a dust removal technical scheme is high temperature resistant, can retrieve the flue gas waste heat of higher temperature (200 ℃ -500 ℃), and is bigger to flue gas waste heat recovery volume, utilizes the waste heat of msw incineration flue gas to preheat combustion-supporting air, makes the rubbish of low calorific value also can independently burn, and energy-conserving effect is better.
The using method comprises the following steps: when the utility model is used, firstly, the hopper 8 is filled with the filter material for feeding, when the filter material particles 2 are filled, the second valve 9 is opened to close the first valve 7, after the filter material particles 2 are filled, the second valve 9 is closed, the first valve 7 is opened to let the filter material particles 2 enter the shell 5, then the first valve 7 is closed, the combustion-supporting air is introduced into the preheating coil 6, the starting device is started, the flue gas of the garbage incinerator enters the deacidification tower for removing the acid gas after passing through the waste heat boiler, and then enters the device of the utility model through the garbage incineration flue gas inlet 1, after the flue gas enters the shell 5, the dust particles in the garbage incineration flue gas are removed by utilizing the filter layer consisting of the dust removal filter material particles 2, the flue gas and the air in the preheating coil 6 are subjected to heat exchange to heat the combustion-supporting air, the waste heat is recovered, the heated combustion-supporting air enters, the garbage with low calorific value can be independently combusted, the energy-saving effect is better, dust particles are descended to an ash unloading unit 33 arranged below the filter material replacing device 3 under the action of gravity and air flow, the purified flue gas is discharged through a garbage incineration flue gas outlet 4, dioxin and heavy metal adsorbed on the dust particles are also conveyed to the ash unloading unit 33 through an ash unloading hole 361 on a filter material ash unloading baffle plate 36 and are discharged through an ash unloading valve, when ash is unloaded, a fourth valve 35 is firstly opened to close the third valve 34, so that the dust particles fall into an ash unloading hopper, then the fourth valve 35 is closed to open the third valve 34, the dust particles are discharged, when a local filter layer is blocked after a certain time of operation, the dust removal filter material particles 2 can be partially or completely discharged from the filter material discharging door 32, then the clean filter material particles 2 are added from the filter material filling hopper 8, the filter material discharging door 32 can be provided with a baffle plate partition, the range of replacing the filter material particles is convenient to select, the discharged filter material particles 2 can be regenerated into clean filter material particles 2 after being cleaned and screened, the recycling is convenient, and the operation cost is saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a waste incineration flue gas dust removal and waste heat utilization equipment of removable dust removal filter material, includes casing (5), its characterized in that: the one end welded connection of casing (5) has msw incineration flue gas entry (1), the other end welded connection of casing (5) has msw incineration exhanst gas outlet (4), the upper surface intermediate position of casing (5) runs through to install the filter material and fills into fill (8), the one end that the filter material filled into fill (8) is provided with first valve (7), the other end that the filter material filled into fill (8) is provided with second valve (9), the upper surface of casing (5) is close to the filter material and fills fill (8) and runs through and install preheating coil (6), the inside packing of casing (5) is provided with filter material granule (2), the lower surface of casing (5) evenly is provided with three filter material change device (3).
2. The waste incineration flue gas dedusting and waste heat utilization device with the replaceable dedusting filter material as claimed in claim 1, characterized in that: filter material replacement device (3) including running through install in filter material discharge fill (31) of casing (5) lower surface, the side surface of filter material discharge fill (31) runs through and is provided with filter material discharge door (32), filter material discharge fill (31) lower extreme is provided with the filter material and unloads grey baffle (36), filter material unloads grey baffle (36) lower extreme fixed mounting has and unloads grey unit (33), the side surface upper end of unloading grey unit (33) is provided with fourth valve (35), the side surface lower extreme of unloading grey unit (33) is provided with third valve (34).
3. The waste incineration flue gas dedusting and waste heat utilization device with the replaceable dedusting filter material as claimed in claim 2, characterized in that: the filter material dust discharging baffle (36) is characterized in that a plurality of dust discharging holes (361) uniformly penetrate through the upper surface of the filter material dust discharging baffle (36), and the diameters of the dust discharging holes (361) are larger than the particle diameters of the filter material particles (2).
4. The waste incineration flue gas dedusting and waste heat utilization device with the replaceable dedusting filter material as claimed in claim 1, characterized in that: the preheating coil (6) is a component with an S-shaped structure, and a heating medium is filled in the preheating coil (6).
5. The waste incineration flue gas dedusting and waste heat utilization device with the replaceable dedusting filter material as claimed in claim 1, characterized in that: and sealant is arranged at the connecting positions of the preheating coil (6), the filter material filling hopper (8), the filter material replacing device (3) and the shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020547469.8U CN212057348U (en) | 2020-04-14 | 2020-04-14 | Waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020547469.8U CN212057348U (en) | 2020-04-14 | 2020-04-14 | Waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212057348U true CN212057348U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020547469.8U Active CN212057348U (en) | 2020-04-14 | 2020-04-14 | Waste incineration flue gas dust removal and waste heat utilization device with replaceable dust removal filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212057348U (en) |
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2020
- 2020-04-14 CN CN202020547469.8U patent/CN212057348U/en active Active
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