CN104913656B - De-dusting and heat-absorbing device for high-temperature fuel gas - Google Patents
De-dusting and heat-absorbing device for high-temperature fuel gas Download PDFInfo
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Abstract
The invention relates to the technical field of processing of high-temperature fuel gas, in particular to a de-dusting and heat-absorbing device for high-temperature fuel gas. The de-dusting and heat-absorbing device comprises a de-dusting device, a heat-absorbing device and a flue. The de-dusting device and the heat-absorbing device are connected by means of the flue. The de-dusting device comprises a box body, two material-filtering beds, dust-collecting boxes and a two-position three-way reversing valve. The material-filtering beds are located in the interior of the box body. The dust-collecting boxes are located behind the material-filtering beds. The two-position three-way reversing valve is connected with the box body via the flue. The heat-absorbing device comprises a heat-absorbing tower, a circulating water tank, a high-pressure water pump, a heat exchanger, a water tower and a water pipe. A loop is formed by connection between the heat-absorbing tower and the circulating water tank and provided with the high-pressure water pump. The heat exchanger is located in the interior of the circulating water tank. The heat exchanger is connected with the water tower and tap water. The de-dusting and heat-absorbing device for high-temperature fuel gas has following beneficial effects: the problem that a poor de-dusting effect is caused by blockage of material-filtering beds is solved; heat of high-temperature fuel gas can be recycled for utilization; utilization rate is increased; and production cost is reduced.
Description
Technical field
The present invention relates to high-temperature flue gas processing technology field, specifically a kind of high temperature fume dust removal heat sink.
Background technology
Industrial circle at present, stove is widely adopted and reaches certain production purpose, work with combustion of fossil fuel generation heat energy
Flue gas is given off, flue gas is the multiphase aerosol of solid, liquids and gases material composition, Main Ingredients and Appearance after industry stove fuel combustion
Co2, h2o, co, no and flue dust, wherein flue dust belongs to particle contamination, and particle contamination be air important pollutant it
One, and atmosphere pollution has increasingly seriously directly jeopardized the comfortable, healthy of human body, so that environment for the survival of mankind,
Oxious component in flue gas needs to reduce discharge by improving burning and dedusting.
Traditional industrial furnace flue gas ash removal, mainly adopts dust removal with machine, electrostatic precipitation, filtering type bag-type dust, washing
Formula wet dedusting etc..Because high-temperature flue gas have very vigorous erosion destructive power to the equipment of traditional deduster, filtering material, also can be right
Deduster structure produces the impact of thermal expansion, and the Applicable temperature of traditional deduster is low, and therefore, high-temperature dust removal effect is bad, and one
As effectively can only work between 50-200 DEG C.
Temperature is reached to the dedusting of 200 DEG C -1000 DEG C and above high-temperature flue gas, mainly used again using first lowering the temperature at present and pass
The method of system deduster dedusting；Cool-down method mainly has direct cooling such as: using wild air cooling, water cooling etc..Wild air cooling fall
After temperature, exhaust gas volumn increases, and waste heat recovery efficiency is low, and thermal loss is big；Water cooling cooling then increases the complexity of dust pelletizing system,
Cooling-down effect is also bad.
Electric cleaner is used for high-temperature dust removal and is explored by the states such as U.S., moral, Japan, is mainly in the experimental stage at present,
Reaching and run the experimental record of 100 hours under 650～790 DEG C, 570kpa, efficiency of dust collection can reach 95%～
99.5%；But have such problems as that corona discharge is unstable, electrode life is short, high-temperature insulation sensitive to smoke components, the short time
Interior, it is difficult to break through.
The high-temperature dust removal technology studied or studied also has pottery to knit shape filter, ceramic fiber filter, metal
Felt filter, sintered metal mesh pipe filter, too cotton filter etc., the filter efficiency of these dedusters is attained by 99%
More than, but all there is respective problem, such as strength problem, permanent plugging Problem of Failure, Cost Problems etc..
The domestic report having various granular-bed filters, mainly moving granular bed filter and ebullated bed stratum granulosum mistake
Filter, these granular-bed filters all adopt flue gas from the top down through grain bed, particle in reverse gas cleaning be in fluidization or
Boiling-like.This granular-bed filter does not still change conventional particles layer filter flue gas from the top down through grain bed, still
So there is a problem of that dust is difficult to clear up on grain bed top, fluidised reverse gas cleaning easily produces irregular operation, impact
Efficiency of dust collection.And existing deduster is not directed to waste heat recovery and the effectively utilizes of high-temperature flue gas.
Content of the invention
In order to make up the deficiencies in the prior art, the invention provides a kind of high temperature fume dust removal heat sink, can be to height
Warm flue gas carries out dedusting and heat absorption, and described dust arrester can carry out self-cleaning, solves the blocking of filtrate bed and removing of causing
Dirt effect difference and the problem that need to often carry out labor cleaning；Described heat sink can be carried out back to the heat in high-temperature flue gas
Receive and utilize, improve the utilization rate of the energy, reduce production cost.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high temperature fume dust removal heat sink, including
Dust arrester, heat sink and flue, described dust arrester is connected by flue with heat sink, described dust arrester
Including casing, two filtrate beds, disposal box and two-bit triplet reversal valve, two described filtrate beds in box house, two
Filtrate bed is positioned opposite, and filtrate bed is used for the solid particulate matter in flue gas is carried out in dust removal by filtration, the case between two filtrate beds
Outlet flue is provided with body, the flue gas after dedusting is discharged by outlet flue, the rear of filtrate bed is provided with disposal box, disposal box
Bottom is provided with ash hole, ash hole is vertically disposed with two pieces can break-make successively active clapboard, two pieces of active clapboards are successively
Break-make can discharge dust in dust removal process, need not shut down and carry out ash disposal, and can ensure that air-tightness, prevent high-temperature flue gas from
Ash hole leaks and leads to potential safety hazard, and the two ends of described casing are gone out with two of two-bit triplet reversal valve by flue respectively
Mouth is connected, and the import of two-bit triplet reversal valve is connected with high-temperature flue gas source by flue, by controlling two-bit triplet commutation
Valve can make the flow direction of high-temperature flue gas free switching in casing, thus realizing the self-cleaning of filtrate bed.During work, high-temperature flue gas
Enter from the air inlet of two-bit triplet reversal valve, so that two-bit triplet reversal valve is under a kind of working condition, high-temperature flue gas are from two
The one outlet of position three-way diverter valve is flowed out and is reached one end of casing by flue, and high-temperature flue gas are through positioned at box house
One filtrate bed, the solid particulate matter in flue gas is stopped by filtrate bed, and clean high-temperature flue gas are discharged from outlet flue, one section
After time, so that two-bit triplet reversal valve is under another kind of working condition, high-temperature flue gas from two-bit triplet reversal valve another
Outlet is flowed out and is reached the other end of casing by flue, then carries out dedusting to high-temperature flue gas；Clean high-temperature flue gas can be from
Reverse side is cleared up to a upper filtrate bed, and the solid particulate matter under dropping can be fallen in disposal box, when the solid in disposal box
When particulate matter is accumulated to a certain extent, open active clapboard successively, so that dust is fallen from ash hole.
Described heat sink includes absorb heat tower, cyclic water tank, high-pressure hydraulic pump, heat exchanger, water tower and water pipe, described
Heat absorption tower bottom is provided with smoke inlet, and smoke inlet is connected with outlet flue, and clean high-temperature flue gas enter heat absorption by smoke inlet
In tower, heat absorption top of tower is provided with chimney, is discharged less for heat flue gas by chimney, inside heat absorption tower from top to bottom successively
It is provided with three heat absorption storehouses, in heat absorption storehouse, high-temperature flue gas are progressively absorbed heat；Described heat absorption storehouse includes the collection of back taper
Petticoat pipe, is provided with top cover above exhaust fume collecting hood, be provided with gas outlet below top cover, and high-temperature flue gas pass through gas outlet automatically into next
Individual heat absorption storehouse or final discharge from chimney, be provided with fixed seat above top cover, fixed seat be provided with shower nozzle, the water that shower nozzle sprays
Absorb the heat of high-temperature flue gas, reach the purpose of heat absorption；Described shower nozzle is connected with one end of high-pressure hydraulic pump by water pipe, high
The other end of water pump is connected with cyclic water tank by water pipe, and cyclic water tank is internally provided with heat exchanger, under heat exchanger
End is provided with water inlet, and water inlet is connected with running water by water pipe, and the upper end of heat exchanger is provided with delivery port, delivery port
It is connected with water tower by water pipe, the water in water tower can be used for having a bath, heats；The bottom of described exhaust fume collecting hood is provided with row
The mouth of a river, discharge outlet is connected with cyclic water tank by water pipe, and the water absorbing heat passes through discharge outlet and enters recirculated water along water pipe
It is achieved that the circulation heat absorption of water in case.
The invention has the beneficial effects as follows:
1. a kind of high temperature fume dust removal heat sink that the present invention provides, described dust arrester can carry out self-cleaning,
The dust removing effects solving the problems, such as the blocking of filtrate bed and causing are poor and need to often carry out labor cleaning, and cleaning effect preferably, is transported
Row is more stable, on described ash hole 131 setting up and down two pieces can the active clapboard 132 of break-make successively can be non-stop-machine
Carry out deashing under state, and the phenomenon of high-temperature flue gas leakage will not occur, security is higher；
2. a kind of high temperature fume dust removal heat sink that the present invention provides, described heat sink can be in high-temperature flue gas
Heat recycled, heat sink is successively absorbed heat using three-level, more preferably, more fully absorb heat can improve energy
The utilization rate in source, is absorbed heat using recirculated water, it can be avoided that the problem of the pipe scaling causing during using noncirculating water.
Brief description
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structural representation of high temperature fume dust removal heat sink of the present invention；
Fig. 2 is a kind of side view of the disposal box of high temperature fume dust removal heat sink of the present invention.
In figure: dust arrester 1, casing 11, outlet flue 111, filtrate bed 12, disposal box 13, ash hole 131, active clapboard
132nd, two-bit triplet reversal valve 14, heat sink 2, heat absorption tower 21, smoke inlet 211, chimney 212, heat absorption storehouse 213, exhaust fume collecting hood
2131st, top cover 2132, gas outlet 2133, fixed seat 2134, shower nozzle 2135, cyclic water tank 22, high-pressure hydraulic pump 23, heat exchanger
24th, water tower 25, water pipe 26, running water 27, flue 3.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As depicted in figs. 1 and 2, a kind of high temperature fume dust removal heat sink of the present invention, including dust arrester 1, inhales
Thermal 2 and flue 3, described dust arrester 1 is connected by flue 3 with heat sink 2, and described dust arrester 1 includes
11, two filtrate beds 12 of casing, disposal box 13 and two-bit triplet reversal valve 14, two described filtrate beds 12 are located in casing 11
Portion, two filtrate beds 12 are positioned opposite, and filtrate bed 12 is used for the solid particulate matter in flue gas is carried out dust removal by filtration, two filtrates
It is provided with outlet flue 111, the flue gas after dedusting is discharged by outlet flue 111, after filtrate bed 12 on casing 11 between bed 12
Side is provided with disposal box 13, and the bottom of disposal box 13 is provided with ash hole 131, and ash hole 131 is vertically disposed with two pieces can be according to
The active clapboard 132 of secondary break-make, break-make can discharge dust in dust removal process successively for two pieces of active clapboards 132, need not shut down into
Row ash disposal, and can ensure that air-tightness, prevents high-temperature flue gas from leaking from ash hole 131 and leading to potential safety hazard, described case
The two ends of body 11 are connected with two outlets of two-bit triplet reversal valve 14 by flue 3 respectively, two-bit triplet reversal valve 14
Import is connected with high-temperature flue gas source by flue 3, can make the flow direction of high-temperature flue gas by controlling two-bit triplet reversal valve 14
Free switching in casing 11, thus realize the self-cleaning of filtrate bed 12.During work, high-temperature flue gas are from two-bit triplet reversal valve 14
Air inlet enter, so that two-bit triplet reversal valve 14 is under a kind of working condition, high-temperature flue gas are from two-bit triplet reversal valve 14
One outlet flow out and pass through one end that flue 3 reaches casing 11, high-temperature flue gas are filtered through positioned at casing 11 within one
Material bed 12, the solid particulate matter in flue gas is stopped, clean high-temperature flue gas are discharged from outlet flue 111 by filtrate bed 12, one
After the section time, two-bit triplet reversal valve 14 is made to be under another kind of working condition, high-temperature flue gas are from two-bit triplet reversal valve 14
The other end that flue 3 reaches casing 11 is flowed out and passes through in another outlet, then carries out dedusting to high-temperature flue gas；Clean high temperature
Flue gas can be cleared up to a upper filtrate bed 12 from the negative, and the solid particulate matter under dropping can be fallen in disposal box 13, works as collection
When solid particulate matter in dirt case 13 is accumulated to a certain extent, open active clapboard 132 successively, so that dust is fallen from ash hole 131
Under.
Described heat sink 2 includes absorb heat tower 21, cyclic water tank 22, high-pressure hydraulic pump 23, heat exchanger 24, water tower 25 and
Water pipe 26, described heat absorption tower 21 bottom is provided with smoke inlet 211, and smoke inlet 211 is connected with outlet flue 111, the height of cleaning
Warm flue gas passes through smoke inlet 211 and enters in heat absorption tower 21, and heat absorption tower 21 top is provided with chimney 212, by chimney 212 by heat
Less flue gas is discharged, and is disposed with three heat absorption storehouses 213 from top to bottom, to height in heat absorption storehouse 213 inside heat absorption tower 21
Warm flue gas is progressively absorbed heat；Described heat absorption storehouse 213 includes the exhaust fume collecting hood 2131 of back taper, is provided with above exhaust fume collecting hood 2131
Top cover 2132, is provided with gas outlet 2133 below top cover 2132, high-temperature flue gas pass through gas outlet 2133 and inhale automatically into next
Hot storehouse 213 or finally discharge from chimney 212, is provided with fixed seat 2134, fixed seat 2134 is provided with spray above top cover 2132
2135, the water that shower nozzle 2135 sprays absorbs the heat of high-temperature flue gas, reaches the purpose of heat absorption；Described shower nozzle 2135 passes through water
Pipe 26 is connected with one end of high-pressure hydraulic pump 23, and the other end of high-pressure hydraulic pump 23 is connected with cyclic water tank 22 by water pipe 26,
Cyclic water tank 22 is internally provided with heat exchanger 24, and heat exchanger 24 lower end is provided with water inlet, water inlet pass through water pipe 26 with
Running water 27 is connected, and the upper end of heat exchanger 24 is provided with delivery port, and delivery port is connected with water tower 25 by water pipe 26, water
Water in tower 25 can be used for having a bath, heats；The bottom of described exhaust fume collecting hood 2131 is provided with discharge outlet, and discharge outlet passes through water
Pipe 26 is connected with cyclic water tank 22, and the water absorbing heat passes through discharge outlet and enters in cyclic water tank 22 along water pipe 26, realizes
The circulation heat absorption of water.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the simply explanation present invention's of the description in above-described embodiment and specification
Principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these change and change
Enter to both fall within scope of the claimed invention.Claimed scope is by appending claims and its equivalent
Define.
Claims (2)
1. a kind of high temperature fume dust removal heat sink, including dust arrester (1), heat sink (2) and flue (3), its feature exists
In: described dust arrester (1) is connected by flue (3) with heat sink (2), and described dust arrester (1) includes casing
(11), two filtrate beds (12), disposal box (13) and two-bit triplet reversal valve (14), two described filtrate beds (12) are located at case
Body (11) is internal, and two filtrate beds (12) are positioned opposite, and the casing (11) between two filtrate beds (12) is provided with outlet flue
(111), the rear of filtrate bed (12) is provided with disposal box (13), and the bottom of disposal box (13) is provided with ash hole (131), ash discharge
Be vertically disposed with mouthful (131) two pieces can break-make successively active clapboard (132), the two ends of described casing (11) are passed through respectively
Flue (3) is connected with two outlets of two-bit triplet reversal valve (14), and flue is passed through in the import of two-bit triplet reversal valve (14)
(3) it is connected with high-temperature flue gas source.
2. a kind of high temperature fume dust removal heat sink according to claim 1 it is characterised in that: described heat sink
(2) heat absorption tower (21), cyclic water tank (22), high-pressure hydraulic pump (23), heat exchanger (24), water tower (25) and water pipe (26) are included,
Described heat absorption tower (21) bottom is provided with smoke inlet (211), and smoke inlet (211) is connected with outlet flue (111), and absorb heat tower
(21) top is provided with chimney (212), is disposed with three heat absorptions storehouse (213) inside heat absorption tower (21) from top to bottom；Described
Heat absorption storehouse (213) include back taper exhaust fume collecting hood (2131), be provided with top cover (2132), top cover above exhaust fume collecting hood (2131)
(2132) it is provided with gas outlet (2133) below, be provided with fixed seat (2134) above top cover (2132), in fixed seat (2134)
It is provided with shower nozzle (2135)；Described shower nozzle (2135) is connected with one end of high-pressure hydraulic pump (23) by water pipe (26), high pressure
The other end of water pump (23) is connected with cyclic water tank (22) by water pipe (26), and cyclic water tank (22) is internally provided with heat exchange
Device (24), heat exchanger (24) lower end is provided with water inlet, and water inlet is connected with running water (27) by water pipe (26), and heat is handed over
The upper end of parallel operation (24) is provided with delivery port, and delivery port is connected with water tower (25) by water pipe (26)；Described exhaust fume collecting hood
(2131) bottom is provided with discharge outlet, and discharge outlet is connected with cyclic water tank (22) by water pipe (26).
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| CN201510374076.5A CN104913656B (en) | 2015-06-29 | 2015-06-29 | De-dusting and heat-absorbing device for high-temperature fuel gas |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106975305B (en) * | 2017-04-18 | 2022-07-15 | 宁波大学 | Granular bed filtering and dust removing system |
| CN110665303B (en) * | 2019-11-19 | 2024-07-02 | 河北工业大学 | Flue gas dust removal device and dust removal method thereof |
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Effective date of registration: 20160803 Address after: Sanmenxia City, Henan Province, 472400 Bay Road Chengguan Town Yangshao pool No. 1 Applicant after: Zhang Panpan Address before: 246001 No. 64, Jixian Road, Anqing, Anhui Applicant before: Anhui Anqing Wanqing Environmental Protection Technology Co., Ltd. |
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Effective date of registration: 20161209 Address after: 226000 Jiangsu city of Nantong province Haian Hyosung Road Development Zone Applicant after: Aineng Saike Machinery Equipment (Jiangsu) Co., Ltd. Address before: Sanmenxia City, Henan Province, 472400 Bay Road Chengguan Town Yangshao pool No. 1 Applicant before: Zhang Panpan |
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