CN206055650U - A kind of high concentration foul gass catalytic oxidation deodorizing equipment - Google Patents

Abstract

The utility model discloses a kind of high concentration foul gass catalytic oxidation deodorizing equipment and its deodorizing method, separate three layers of region of upper, middle and lower in housing, air inlet pipeline collects pending foul smell, and premixing is carried out with air reach predetermined odor concentration；Mixed gas is entered in the heat transfer zone of closed shell bottom, and is preheated in multi-path heat exchange pipeline；The heated area's heating of pending gas after preheating reaches catalyst combustion reaction temperature conditionss；Pending gas after heating enters catalytic reaction zone, catalyst combustion reaction occurs, the foul smell molecule in pending gas is burnt；Reacted purification gas discharge closed shell by outlet pipe into after tortuous heat transfer zone, with the untreated pending gas converting heat in the heat exchanging pipe.This utility model is integral type structure, can realize pending gas preheating, heating and catalyst combustion reaction, compact conformation；After effectively utilizes catalysis burning, the heat energy of gas, reduces energy consumption；The purifying process of foul smell is realized in catalysis burning.

Description

A kind of high concentration foul gass catalytic oxidation deodorizing equipment

Technical field

This utility model is related to technical field of environment protection equipment, and in particular to a kind of high concentration foul gass catalytic oxidation deodorizing Equipment and its deodorizing method, it is adaptable to the process of organic exhaust gas and foul smell that the workshop such as house refuse, kitchen, Treatment of Sludge produces And purification.

Background technology

House refuse, kitchen, Treatment of Sludge workshop can produce a large amount of foul smell in processing procedure, to atmospheric environment and work The healthy of personnel is impacted.The method that Odor control is adopted at present is for absorption method, combustion method and biological odor removal method, equipment Quantity is more, and equipment arrangement dispersion, floor space are big.

This utility model adopts Production by Catalytic Combustion Process, using catalyst degradation foul smell ignition temperature, aoxidizes combustible component and divides Solution, obtains harmless carbon dioxide and water, so that gas is purified, and non-secondary pollution.

For existing catalytic combustion system, except floor space greatly in addition to, it is low to the treatment effeciency of waste gas, for foul smell is catalyzed The reaction heat produced in combustion process does not carry out process utilization, causes the waste of energy, and high-temperature gas directly to empty and can make Into potential safety hazard.The dilution of high concentration foul smell can not be controlled, and stability is poor.

A kind of heat accumulating type catalytic combustion device for organic exhaust gas disclosed in CN201448854U, it is to avoid gas blind area, but its Fail using purification gas waste heat, heat energy is derived only from top heater, causes thermal waste.CN 105546556 is disclosed Integrated organic waste gas catalytic combustion device disclosed in waste gas catalytic combustion purifier, CN202182476U, will only exchange heat, add Heat and catalytic reactor splice in a framework, fail to realize real all-in-one.Overall flotation bed disclosed in CN86202182 Formula organic waste gas catalytic combustion purifier, catalytic bed are welded on heat exchanger floating tubesheet, and catalyst change is difficult, and easily stifled Plug heat exchanger tube, electric heating tube and heat exchanger tube can only play the pending gas temperature of raising in the same area, it is impossible to realize reducing Clean gas temperature.

Utility model content

Therefore, in the technical problems to be solved in the utility model prior art, number of devices is more, floor space is big, energy consumption Greatly, foul smell dilutes uncontrollable problem, so as to provide a kind of high concentration foul gass catalytic oxidation deodorizing equipment and its deodorization Method.The equipment be used for low-temperature catalytic burning process foul smell in, with function it is integrated, occupation area of equipment is little, energy consumption is little, gas The controllable advantage of concentration.

On the one hand, this utility model provides a kind of high concentration foul gass catalytic oxidation deodorizing equipment, the equipment bag Including separation in a closed shell, the housing has the catalytic reaction zone in portion disposed thereon, sets in complications positioned at the lower housing portion The heat transfer zone put and the thermal treatment zone positioned at the housing central section, are provided with the heat transfer zone in the tortuous multi-path heat exchange pipe for arranging Road, the lateral surface of the housing are provided with extractor fan and air inlet pipeline, and the extractor fan passes through outlet pipe and the heat exchange Area connects, and the air inlet pipeline is connected with the air inlet of the heat exchanging pipe, and the gas outlet of the heat exchanging pipe is added with described Hot-zone inlet communication, thermal treatment zone outlet and the catalytic reaction zone inlet communication, the catalytic reaction zone outlet with it is described Heat transfer zone connects.

Flow direction of the purification gas in the heat transfer zone and flowing side of the untreated gas in the heat exchanging pipe To perpendicular.

The heat exchanging pipe takes the shape of the letter U and is vertically arranged in the heat transfer zone, is additionally provided with horizontally disposed in the heat transfer zone Multiple dividing plates, the heat transfer zone is separated into multiple baffling passages by the dividing plate, and the import of the baffling passage is urged with described Change reaction zone outlet to communicate, the outlet of the baffling passage is connected with the outlet pipe.

It is interval with multi-disc fin on heat exchanging pipe described in multichannel, the heat transfer zone bottom and positioned at the heat exchanging pipe Bottom is respectively equipped with discharge outlet.

The thermal treatment zone is the siliconits thermal treatment zone, and the silicon carbide heating rod in the thermal treatment zone is in two rows staggered row Row.

Block ceramic honeycomb catalyst, the inlet and outlet position of the catalytic reaction zone are provided with the catalytic reaction zone The block for stopping air flow shortcircuit is respectively provided with, and a dismounting handss is provided with positioned at the housing of the catalytic reaction zone position Hole.

The air inlet pipeline is provided with air intlet valve, foul smell import and flame-retardant device；Air inlet valve described in air Jing Described in Men Yucong, the pending gas mixing of foul smell import input, together in the flame-retardant device, enters back into the housing and enters Row deodorizing process.

Described extractor fan is high temperature draught fan, which is provided with outlet temperature instrument, rate of discharge meter and outlet air-valve.

The medial surface of the housing scribbles refractory heat-insulating coating, and its lateral surface is provided with high-temperature ceramicss heat-preservation cotton.

On the other hand, this utility model additionally provides a kind of high concentration foul gass catalytic oxidation deodorizing method, the side Method comprises the steps：Pending foul smell is collected by air inlet pipeline, and premixing is carried out with air reach predetermined odor concentration； Mixed gas is entered in the heat transfer zone of closed shell bottom, and is preheated in multi-path heat exchange pipeline；Treating after preheating The heated area's heating of processing gas reaches catalyst combustion reaction temperature conditionss；Pending gas after heating enters catalytic reaction , there is catalyst combustion reaction, the foul smell molecule in pending gas burnt in area；Reacted purification gas enter tortuous Closed shell is discharged by outlet pipe behind heat transfer zone, with the untreated pending gas converting heat in the heat exchanging pipe.

Wherein the air-flow velocity of catalytic reaction zone be 1～3m/s, 450～600 DEG C of its inlet temperature, constant temperature zone temperature in the middle part of which Degree 450～500 DEG C, 400～450 DEG C of its outlet temperature.

Technical solutions of the utility model, have the advantage that：

A. this utility model closed shell is divided into heat transfer zone, the thermal treatment zone and catalysis from bottom to top instead in deodorizing device Answer area；The heat transfer zone that air is sufficiently mixed rear access arrangement bottom with foul smell is preheated, and heat exchange thermal source therein is anti-for catalysis High-temperature gas heat transfer is given pending gas, effectively utilizes gas waste-heat by heat exchange by the high-temperature gas produced by after answering Energy saving；The heated area's heating of pending foul smell after preheating reaches catalyst combustion reaction temperature conditionss；Foul smell after heating Into catalyst layer, there is catalyst combustion reaction, foul smell molecule is burnt, deodorization purpose is reached；Reacted gas is being changed Carry out being discharged by outlet pipe after heat exchange cooling in hot-zone with pending gas；This utility model adopts integral structure, can be real Existing pending gas preheating, heating and catalyst combustion reaction, compact conformation, the heat energy of gas, drop after effectively utilizes catalysis burning Low energy consumption, realizes the purifying process after foul smell catalysis burning.

B. the heat transfer zone adopted by this utility model for high-efficiency fin heat transfer zone, the tube side formed by multi-path heat exchange pipeline For U-shaped, it is divided to or so two journeys, right side import connects mixed pending gas, the left side tube side outlet connection siliconits thermal treatment zone, It is divided to upper and lower two journey, purified gas to be entered by catalytic reaction zone and changed the shell side of multi-path heat exchange pipeline by dividing plate in heat transfer zone In hot-zone, the shell side import connection catalytic reaction zone of heat transfer zone, the shell-side outlet connection high temperature draught fan of heat transfer zone, high temperature purification Gas is exchanged heat with the pending gas in heat exchanging pipe into after catalytic reaction zone, realizes that the low temperature of purification gas is defeated Go out, simultaneously because generating energy transmission, raise the temperature of pending gas, pending gas need to only lack after entering the thermal treatment zone Energy can reach the condition for being catalyzed burning, make full use of the energy produced by catalysis burning, by exchanging heat purification gas Heat transfer give pending gas, effectively utilizes purification gas waste heat, energy saving.

C. the thermal treatment zone that this utility model is adopted for the siliconits thermal treatment zone, due to the thermal treatment zone it is long and narrow, and siliconits upper and lower two Row is staggered, and improves the efficiency of heating surface of equipment, and occupation area of equipment is little.

D. by high concentration foul smell is mixed with air proportion at equipment air inlet pipeline, avoid explosive range；Silk screen Type flame-retardant device prevents from being tempered to foul smell source, while making that foul smell is further with air to mix homogeneously；The absorbing quantity of blower fan in reaction It is relevant with pending odor concentration, according to foul smell source concentration and tolerance, inlet air amount is adjusted, reaction density is reached, according to Air inlet pipeline inlet temperature and outlet pipe outlet temperature adjust air-introduced machine total blast volume, realize the gas stream of three region series It is dynamic, the heat of purification gas is efficiently utilized, equipment energy consumption is reduced.

Description of the drawings

In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right Needed for specific embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is catalytic oxidation deodorizing device structure schematic diagram provided by the utility model；

Fig. 2 is overlooking the structure diagram shown in Fig. 1；

Fig. 3 is that gas treatment flows to schematic diagram.

Description of reference numerals：

1-air intlet valve；The import of 2-foul smell；3-mixing section；4-flame-retardant device；5-inlet temperature instrument；6-enter Mouth effusion meter；7-thieff hatch；8-air inlet pipeline；9-heat exchanging pipe；10-heat transfer zone shell side discharge outlet；Manage 11-heat transfer zone Journey interlude；12-heat transfer zone tube side discharge outlet；The tube side outlet of 13-heat transfer zone；14-heat transfer zone outlet temperature instrument；15— Thermal treatment zone import；16-silicon carbide heating rod；17-thermal treatment zone exports；18-catalytic reaction zone inlet temperature instrument；19-catalysis Reaction zone import；20-block；21-catalyst；22-catalytic reaction zone exports；23-catalytic reaction zone outlet temperature instrument； 24-heat transfer zone shell side inlet；25-fin；26-outlet pipe；27-extractor fan；28-outlet temperature instrument；29-go out Mouth effusion meter；30-outlet air-valve；31-regulator cubicle；32-dismounting hand hole；33-refractory heat-insulating coating；34-housing；35— High-temperature ceramicss heat-preservation cotton；36- dividing plates.

I-heat transfer zone；II-thermal treatment zone；- catalytic reaction zone；

In Fig. 3,1 arrow is high concentration foul smell, and 2 arrows are air, and 3～16 arrows are flowed through by the digital direction of arrow for gas The each region of enclosure interior.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of this utility model, rather than the embodiment of whole.Based on the embodiment in this utility model, this The every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belongs to practical Novel protected scope.

In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only For the ease of describe this utility model and simplify description, rather than indicate or imply indication device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in this utility model.

As long as additionally, technical characteristic involved in this utility model different embodiments disclosed below is each other Do not constitute conflict can just be combined with each other.

As depicted in figs. 1 and 2, the utility model discloses a kind of high concentration foul gass catalytic oxidation deodorizing equipment, if It is standby to include a closed shell 34, separate in housing 34 have portion disposed thereon catalytic reaction zone III, positioned at 34 bottom of housing be in The tortuous heat transfer zone I for arranging, and the thermal treatment zone II in the middle part of housing 34, are provided with heat transfer zone I and change in the tortuous multichannel for arranging Pipe line 9, the lateral surface of housing 34 are provided with extractor fan 27 and air inlet pipeline 8, and extractor fan 27 passes through outlet pipe 36 and changes Hot-zone I connects, and air inlet pipeline 8 is connected with the air inlet of heat exchanging pipe 9, gas outlet and II import of the thermal treatment zone of heat exchanging pipe 9 Connection, the outlet of the thermal treatment zone II and III inlet communication of catalytic reaction zone, the outlet of catalytic reaction zone III are connected with heat transfer zone I.This practicality It is new that closed shell is divided in deodorizing device heat transfer zone, the thermal treatment zone and catalytic reaction zone from bottom to top；Air and foul smell The heat transfer zone for being sufficiently mixed rear access arrangement bottom is preheated, high temperature of the heat exchange thermal source therein produced by after catalytic reaction High-temperature gas heat transfer is given pending gas, effectively utilizes gas waste-heat energy saving by heat exchange by gas；After preheating The heated area's heating of pending foul smell reaches catalyst combustion reaction temperature conditionss；Foul smell after heating enters catalyst layer, occurs Catalyst combustion reaction, foul smell molecule is burnt, and reaches deodorization purpose；Reacted gas in heat transfer zone with pending gas Discharged by outlet pipe after carrying out heat exchange cooling；This utility model adopts integral structure, can realize pending gas preheating, add Heat and catalyst combustion reaction, compact conformation, after effectively utilizes catalysis burning, the heat energy of gas, reduces energy consumption, realizes that foul smell is urged Change the purifying process after burning.

The medial surface of wherein housing 34 scribbles refractory heat-insulating coating 33, and its lateral surface is provided with high-temperature ceramicss heat-preservation cotton 35.

In order that purification gas are preferably exchanged heat in heat transfer zone with pending gas, purification gas are in heat transfer zone I Flow direction of the flow direction with untreated gas in heat exchanging pipe 9 it is perpendicular, as shown in Figure 3.

Heat exchanging pipe 9 shown in Fig. 1 takes the shape of the letter U and is vertically arranged in heat transfer zone I, is additionally provided with and sets in level in heat transfer zone I Heat transfer zone I is separated into two baffling passages of level by the multiple dividing plates 36 put, dividing plate 36, and purification gas take the shape of the letter U baffling flowing, folding The import of circulation road is communicated with the outlet of catalytic reaction zone III, and the outlet of baffling passage is connected with outlet pipe 26, pending gas Purification gas are obtained Jing after catalysis burning, heat transfer zone shell side of the purification gas from catalytic reaction zone outlet 22 into heat transfer zone I enters Mouth 24, flows through fin 25, by the pending foul smell cooling in heat exchanging pipe 9, by heat transfer zone shell-side outlet after purification gas cooling Into outlet pipe 26, Jing high temperature draught fans are discharged, and produced condensed water is from heat transfer zone shell side discharge outlet 10 and heat transfer zone pipe Journey discharge outlet 12 is discharged, and heat transfer zone tube side discharge outlet 12 is located at the bottom of heat transfer zone tube side interlude 11.

The thermal treatment zone therein II is the siliconits thermal treatment zone, and the silicon carbide heating rod 16 in the thermal treatment zone II is in two rows friendship Staggered arrangement is arranged, merely just preferred version, it would however also be possible to employ other mode of heatings, and 16 two rows of silicon carbide heating rod are staggered increasing Big air-flow turbulence, airflow direction is horizontal direction, arranges dead ring, and clog thermally resistant fiber glass between siliconits and housing, plus Thermal power is adjustable.

Block ceramic honeycomb catalyst 21 is provided with catalytic reaction zone III in this utility model, catalytic reaction zone III Inlet and outlet position is respectively equipped with block 20, the connection heat transfer zone tube side of thermal treatment zone import 15 outlet 13,17 company of thermal treatment zone outlet Connect catalytic reaction zone import 19.The connection of catalytic reaction zone import 19 thermal treatment zone outlet 17,22 connection heat exchange of catalytic reaction zone outlet Area shell side import 24, catalyst are imported and exported and arrange catalyst block 20, and air flow shortcircuit is fixed and stopped to bulk catalyst, Side arranges dismounting hand hole 32 to be used to load and unload catalyst.

This utility model controls air inlet pipeline 8, the gas output of outlet pipe 26 by regulator cubicle 31, while also control adds The heating-up temperature of hot-zone.Air inlet pipeline therein 8 is provided with air intlet valve 1, foul smell import 2 and flame-retardant device 4；Air Jing is empty Mixing section 3 of the gas imported valve 1 with the pending gas being input into from foul smell import 2 in air inlet pipeline mixes, together into fire-retardant In device 4, entering back into housing 34 carries out deodorizing process.And the extractor fan 27 for being adopted which is provided with outlet for high temperature draught fan Thermometric instrument 28, rate of discharge meter 29 and outlet air-valve 30.

Air intlet valve 1, high concentration foul smell import 2, mixing section 3, spark arrester 4, inlet temperature instrument 5, inlet flow rate Meter 6, thieff hatch 7, the high concentration foul smell from high concentration foul smell import 2 is in mixing section 3 and the air from air intlet valve 1 It is mixed in proportion into, avoids explosive range, screen mesh type flame-retardant device 4 prevents from being tempered to foul smell source, while making foul smell enter with air One step mix homogeneously.

Show at regulator cubicle 31：Temperature (inlet temperature instrument 5, heat transfer zone outlet temperature instrument 14, catalytic reaction zone import Thermometric instrument 18, catalytic reaction zone outlet temperature instrument 23, outlet temperature instrument 28), flow (inlet flow gauge 6；Rate of discharge 29) and frequency (high temperature draught fan) meter；31 control device start and stop of regulator cubicle (the packet start and stop of silicon carbide heating rod 16, high temperature draught fan Start and stop and frequency modulation speed change).By high concentration foul smell is mixed with air proportion at equipment air inlet pipeline, the model that explodes is avoided Enclose；Screen mesh type flame-retardant device prevents from being tempered to foul smell source, while making that foul smell is further with air to mix homogeneously；Blower fan in reaction Absorbing quantity is relevant with pending odor concentration, according to foul smell source concentration and tolerance, adjusts inlet air amount, reaches reaction dense Degree, adjusts air-introduced machine total blast volume according to air inlet pipeline inlet temperature and outlet pipe outlet temperature, realizes three region series Gas flows, and efficiently utilizes the heat of purification gas, reduces equipment energy consumption.

According to Fig. 3, being embodied as lower gas path is：Under high temperature draught fan traction, enter from high concentration foul smell Mouthfuls 2 high concentration foul smell mixing section 3 at the equipment importation is mixed into the air proportion from air intlet valve 1, organizine 4 further mix homogeneously of net type flame-retardant device, into the air inlet pipeline 8 of heat transfer zone, is preheated by heat exchanging pipe 9, by heat transfer zone Tube side outlet 13 enters thermal treatment zone import 15, flows through staggered silicon carbide heating rod 16, enters catalysis by thermal treatment zone outlet 17 , there is catalyst combustion reaction on 21 surface of bulk catalyst in reaction zone import 19, be purified gas, and purification gas are anti-by being catalyzed Answer area's outlet 22 to enter heat transfer zone shell side inlet 24, flow through fin 25, by the pending foul smell cooling in heat exchanging pipe 9, purification Discharged by 26 Jing extractor fans 27 of outlet pipe after gas cooling.Wherein cold flow body is pending foul smell, and inlet temperature is room temperature； Hot fluid is to be catalyzed the purification gas after burning, not higher than 600 DEG C of catalyst layer inlet temperature, preferably 450 DEG C, catalyst layer Outlet temperature is not less than 400 DEG C, catalytic reaction zone flow velocity be 1～3m/s, constant temperature zone temperature 450-500 DEG C.Jing heat transfer zones exchange heat Not higher than 100 DEG C of purified gas outlet temperature afterwards.This utility model makes full use of the energy produced by catalysis burning, by changing The heat transfer of purification gas is given pending gas, effectively utilizes purification gas waste heat, energy saving by heat.

Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or Among changing the protection domain created still in this utility model.

Claims (9)

1. a kind of high concentration foul gass catalytic oxidation deodorizing equipment, it is characterised in that the equipment includes a closed shell (34), in the housing (34), separation has the catalytic reaction zone (III) in portion disposed thereon, is in song positioned at the housing (34) bottom Folding arrange heat transfer zone (I), and be located at the housing (34) in the middle part of the thermal treatment zone (II), be provided with song in the heat transfer zone (I) The multi-path heat exchange pipeline (9) that folding is arranged, the lateral surface of the housing (34) are provided with extractor fan (27) and air inlet pipeline (8), institute State extractor fan (27) to connect with the heat transfer zone (I) by outlet pipe (26), the air inlet pipeline (8) and the heat exchanger tube The air inlet on road (9) is connected, gas outlet and the thermal treatment zone (II) inlet communication, the heating of the heat exchanging pipe (9) Area (II) exports and the catalytic reaction zone (III) inlet communication, and the catalytic reaction zone (III) exports and the heat transfer zone (I) Connection.

2. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 1, it is characterised in that purification gas exist Flow direction of the flow direction in the heat transfer zone (I) with untreated gas in the heat exchanging pipe (9) is perpendicular.

3. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 1, it is characterised in that the heat exchanger tube Road (9) takes the shape of the letter U and is vertically arranged in the heat transfer zone (I), is additionally provided with horizontally disposed multiple dividing plates in the heat transfer zone (I) (36), the heat transfer zone (I) is separated into multiple baffling passages by the dividing plate (36), and the import of the baffling passage is urged with described Change reaction zone (III) outlet to communicate, the outlet of the baffling passage is connected with the outlet pipe (26).

4. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 3, it is characterised in that change described in multichannel Multi-disc fin (25), heat transfer zone (I) bottom and the bottom positioned at the heat exchanging pipe (9) are interval with pipe line (9) It is respectively equipped with discharge outlet.

5. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 1, it is characterised in that the thermal treatment zone (II) it is the siliconits thermal treatment zone, the silicon carbide heating rod (16) in the thermal treatment zone (II) is staggered in two rows.

6. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 5, it is characterised in that the catalysis is anti- Block ceramic honeycomb catalyst (21) is provided with answering area (III), the inlet and outlet position of the catalytic reaction zone (III) sets respectively Have for stopping the block (20) of air flow shortcircuit, the housing (34) positioned at the catalytic reaction zone (III) position is provided with one Dismounting hand hole (32).

7. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 1, it is characterised in that the air inlet pipe Road (8) is provided with air intlet valve (1), foul smell import and flame-retardant device (4)；Air intlet valve (1) described in air Jing with from The pending gas mixing that the foul smell import (2) is input into, together in the flame-retardant device (4), enters back into the housing (34) deodorizing process are carried out.

8. high concentration foul gass catalytic oxidation deodorizing equipment according to claim 1, it is characterised in that described convulsion Device (27) is high temperature draught fan, which is provided with outlet temperature instrument (28), rate of discharge meter (29) and outlet air-valve (30).

9. according to the arbitrary described high concentration foul gass catalytic oxidation deodorizing equipment of claim 1-8, it is characterised in that described The medial surface of housing (34) scribbles refractory heat-insulating coating (33), and its lateral surface is provided with high-temperature ceramicss heat-preservation cotton (35).