CN206732138U - A kind of catalysis degreasing stove with atmosphere purification function - Google Patents

Abstract

The utility model discloses a kind of catalysis degreasing stove with atmosphere purification function, gas-purification separation device including body of heater and the cooperation body of heater, the furnace interior is provided with flue outer cover, degreasing flue is installed inside the flue outer cover, the material that the degreasing flue is internally provided with for carrying material carries case, body of heater heater strip is provided between flue outer cover and degreasing flue, body of heater sidepiece be provided with can fitted seal flue outer cover fire door component, the gas-purification separation device, which is provided with inlet channel and outlet passageway and carries case with degreasing flue and material respectively, to be connected.Catalysis degreasing stove of this kind with atmosphere purification function has the advantages of saving not available for the prior arts such as few cost, environmental pollution, better quality of product, security performance height, explosion-proof performance height.

Description

A kind of catalysis degreasing stove with atmosphere purification function

Technical field

It the utility model is related to a kind of process equipment of field of powder metallurgy, particularly a kind of urging with atmosphere purification function Change debinding furnace.

Background technology

The technological principle of catalysis degreasing is the polyformaldehyde (POM) for utilizing solid-state in the sour gas of certain temperature (about 100 DEG C) Under atmosphere rapid cleavage into gaseous formaldehyde molecule characteristic, wherein acid exist as a kind of catalyst.It cracks equation such as Under：

(CH₂O)_n(acid solution) --- → nCH₂O

At present, the catalyst commonly used during catalysis degreasing is nitric acid (HNO₃), the nitric acid (HNO of strong oxidizing property₃) can be quick Catalytic pyrolysis POM and it is widely used by industrial production.But nitric acid is dangerous high, the skin for the people that can burn, can damage The mucous membrane and respiratory tract of inside of human body, with protein contacts, that is, a kind of distinct xanthoproteic acid yellow substance is generated, makes one to stop up Breath, severe patient are dead；Pollution to environment is also very big, is one of Crack cause of acid rain.

Traditional gas cleaning plant goes the removal of impurity using modes such as absorption, acid-base neutralization, displacements mostly, but in powder , it is necessary to retain sour gas in metallurgical metal injection molding technology, sour gas is as protected, ensures that it can secondary use.And Traditional gas cleaning plant should not use in this technical field.Further, traditional gas cleaning plant enters from waste gas and set After standby, to first pass through filter and filter out particulate matter, then enter back into adsorption zone adsorption cleaning, after-purification gas by divulging information Machine is discharged into air or enters other instruments secondary use.

Traditional gas cleaning plant can not only remove impurity useless in mixed gas or filter out and originally can not be circulated The impurity utilized, such as paraffin, PE, PP.As nitric acid, N₂Etc. what can be recycled, debinding furnace can be passed through again by equipment Interior secondary use.Such a limitation, the traditional gas cleaning plant of in general can not be realized.

Traditional degreasing furnace door, which is closed, only has a hinge point, often improper because of closing when fire door is closed and compressed, And unbalance stress causes fire door leakage problem during fire door compression, the generation of security incident is triggered.When security incident occurs, pass The fire door of system, which compresses, only has one or two of safety measure, as compacting device of furnace door and chain, when the surge of blast is excessive, stove Door pressing device can not be born, and being easily damaged causes fire door to be fully opened, and pressure leaks, and operating personnel is easily involved.

For traditional debinding furnace after catalytic cracking reaction, tail gas can be discharged into combustion chambers burn, still, because furnace interior Mobility it is bad, although there is fan auxiliary, but not obvious enough, often impurity caused by catalytic pyrolysis can block degreasing production Hole on product are microcosmic, influence the decomposition of polyformaldehyde and hinder sour gas to enter product deep internal, when causing catalysis degreasing Wasted heat, degreasing time length, yields poorly, yield is low.

To sum up, there is the defects of several aspects in prior art：

1st, the consumption of nitric acid is big, and harm is also big, is discharged into after completing degreasing in air, it is impossible to recycles, produces Cost is high；

In exhaust emissions caused by equipment, there is HNO₃And NO_x, it is one of Cause of Acid Rain, has harm to environment, to water body, soil Earth and air can pollute, and the pollution to environment is big；

Nitric acid splashes can cause burn, and stained yellow spot in skin, typically with slightly yellow.Concentrated nitric acid and organic matter, wood Bits etc., which mutually mix, can cause burning, and corrosivity is very strong, the mucous membrane and respiratory tract of energy skin ambustion, also energy loss evil inside of human body, with egg White matter contacts, that is, generates a kind of distinct xanthoproteic acid yellow substance, make one to suffocate, and severe patient is dead.

2nd, degreasing furnace door closes the border the bad problem with compressing：

Fire door problem is of crucial importance.When traditional fire door is closed, an only rotating shaft, cause fire door to be closed improper, compress Device can not compress fire door completely, and the event such as leakage or blast at fire door, security performance deficiency easily occurs.

3rd, explosion precaution grade is low：

Current fire door explosion precaution only has pressing device and chain, or even only pressing device.Reveal and explode when stove When, fire door is often the maximum place that is hit.If fire door thrust is inadequate, explosion time is unable to pressure release, and fire door will be rushed Open, the pressure of explosion time, heat, fly to let out thing and face directly, operating personnel will suffer from life threat.

4th, furnace interior atmosphere mobility is not strong, influences to produce yield：

Body of heater atmosphere entrance only has desk fan auxiliary, and gas outlet does not have gas guiding, causes internal gas flow disorderly, catalysis Impurity caused by cracking can block skimmed prod it is microcosmic on hole, influence polyformaldehyde decomposition and hinder sour gas enter production Product deep internal, wasted heat when causing catalysis degreasing, degreasing time length, yield poorly, yield is low.

In a word, there is the generation of atmosphere impurity effect in prior art, production cost is high, security performance is insufficient, environmental pollution Greatly, the technological deficiency such as oven door sealing performance deficiency, fire door poor in anti-explosion property.

In view of this, the purpose of this utility model is that provide a kind of new technical scheme lacks to solve existing technology Fall into.

Utility model content

For overcome the deficiencies in the prior art, the utility model provides a kind of catalysis degreasing stove with atmosphere purification function, Solves impurity effect production existing for prior art, cost is high, pollutes the technologies such as environment, the not high, poor in anti-explosion property of security Defect.

Technical scheme is used by the utility model solves its technical problem：

A kind of catalysis degreasing stove with atmosphere purification function, including the gas purification of body of heater and the cooperation body of heater separate dress Put, the furnace interior is provided with flue outer cover, is provided with degreasing flue inside the flue outer cover, inside the degreasing flue It is provided with the material for carrying material and carries case, body of heater heater strip is provided between flue outer cover and degreasing flue, body of heater sidepiece is set Have can fitted seal flue outer cover fire door component, the gas-purification separation device is provided with inlet channel and outlet passageway and distinguishes Case is carried with degreasing flue and material to connect.

As the improvement of above-mentioned technical proposal, the gas-purification separation device includes hollow outer case and is arranged on institute The internal box inside outer case is stated, heating mantle is provided between the outer case and internal box, the heating mantle is set in interior case Outside body, it is provided with inside the internal box and internal box inwall cooler bin spaced apart from each other, above-mentioned inlet channel and outlet Passage is respectively communicated with the upper space of internal box and the lower space of internal box.

As the further improvement of above-mentioned technical proposal, it is provided with and is easy to internal box internal gas on the outlet passageway The air exhauster that above-mentioned material carries case is pumped into, the material, which carries to be provided with inside case, is easy to material to carry the uniform fan of case internal heat.

As the further improvement of above-mentioned technical proposal, the internal box is set at its gas outlet close to outlet passageway There are heater strip and thermocouple, the cooler bin sidepiece is provided with condensate film.

As the further improvement of above-mentioned technical proposal, the gas-purification separation device bottom is provided with impurity collection Mouthful, the impurity collection port is communicated to the bottom position of internal box.

As the further improvement of above-mentioned technical proposal, the upper of furnace body sets combuster, the combustion chamber The inner space of flue outer cover in body of heater, combustion chamber sidepiece are connected with natural gas air inlet.

As the further improvement of above-mentioned technical proposal, the body of heater is additionally provided with nitrogen inlet, the nitrogen inlet Material is communicated to carry inside case.

As the further improvement of above-mentioned technical proposal, the fire door component includes the stove door switch for being hinged on body of heater sidepiece Arm, the fire door being hinged on the stove door switch arm and the pressing device for being pressed on fire door on body of heater, the fire door Explosion-proof bolt device is additionally provided with switch arm, fire door heater strip is provided with the inside of the fire door.

As the further improvement of above-mentioned technical proposal, the pressing device include being fixed on spring strut on body of heater, with The axostylus axostyle of the spring strut connection, the axostylus axostyle are hinged with threaded rod, are provided with the threaded rod and coordinate with threaded rod screw thread Tighten handle, be provided with compression spring inside the spring strut, one end of the axostylus axostyle has hold-down mechanism and can be by the pressure Tight mechanism compresses the compression spring.

As the further improvement of above-mentioned technical proposal, the explosion-proof bolt device includes bolt block, spacing short axle and opened It is located at corresponding short axle jack on stove door switch arm, the end of the bolt block has a ramp structure, and the one of the spacing short axle End and the ramp structure abutting contact, the spacing short axle can trigger the trigger switch being arranged on stove door switch arm.

The beneficial effects of the utility model are：The utility model provides a kind of catalysis degreasing with atmosphere purification function Stove, catalysis degreasing stove of this kind with atmosphere purification function have the advantages of the following aspects：

1st, the utility model is provided with gas-purification separation device, and the gas-purification separation device can be allowed in debinding furnace The tail gas of discharge can realize and be cleaned, the HNO after being cleaned₃、N₂It can also recycle, make it into debinding furnace and continue to decompose POM, the material of reusable edible is taken full advantage of, saves production cost；

2nd, internal work environment is effectively improved, improves the mobility of furnace interior atmosphere, excludes the impurity in atmosphere To harmful effect in catalysis degreasing technical process, the efficiency of catalysis degreasing is lifted

3rd, after tail gas enters gas-purification separation device, heat, cooled down in low-temperature space, the impurity after cooling in high-temperature region (there are paraffin, (CH₂O), PE, PP etc.) it is attached on water tank and condensate film, nitric acid (HNO₃) hold liquid and flow to interior bottom portion and be heated Silk heating and gasifying, with N₂Gas outlet is flowed into together；

4th, the spring buffer effect of two layers of safety measure of fire door, i.e. pressing device and the limitation fire door of explosion-proof bolt device The rotary action of switch arm, improve the security of fire door；

5th, the utility model, which can be realized, is fully sealed operation, it is ensured that the POM in debinding furnace can smooth catalysis degreasing；

6th, nitric acid (HNO is improved₃) utilization rate, reduce nitric acid (HNO₃) usage amount, reduce in tail gas caused by nitric acid Discharged nitrous oxides, reduce environmental.

Catalysis degreasing stove of this kind with atmosphere purification function solves impurity effect production, cost existing for prior art The technological deficiencies such as high, pollution environment, the not high, poor in anti-explosion property of security.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is catalysis degreasing flow chart of the present utility model；

Fig. 2 is the utility model cross section structure diagram；

Fig. 3 is the distribution schematic diagram of body of heater heater strip in the utility model；

Fig. 4 is main structure diagram of the present utility model；

Fig. 5 is fire door heater strip distribution schematic diagram in the utility model；

Fig. 6 is the annexation figure of pressing device in the utility model；

Fig. 7 is the annexation figure of explosion-proof bolt device in the utility model；

Fig. 8 is the structural representation of cooler bin in the utility model.

Embodiment

Design, concrete structure and caused technique effect of the present utility model are carried out below with reference to embodiment and accompanying drawing Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is part of the embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area The other embodiment that art personnel are obtained on the premise of not paying creative work, belong to the model of the utility model protection Enclose.In addition, all connection/annexations being related in patent, not singly refer to component and directly connect, and refer to can be according to specific Performance, by adding or reducing couple auxiliary, to form more excellent draw bail.Each skill in the utility model creation Art feature, can be with combination of interactions, reference picture 1- Fig. 8 on the premise of not conflicting conflict.

Reference picture 1, the process of metal powder injection molding degreasing, it is most important that remove polyformaldehyde and (POM, account for 70- 95%), due on polyformaldehyde molecular backbone two adjacent oxygen atoms have stronger activation to methylene hydrogen atom, heat and The lower polyformaldehyde strand of oxidation (acid of strong oxidizing property) effect is broken due to the attack by oxygen, and the company of continuous piptonychia aldehyde occurs Lock reactor (β chain scission mechanisms), is finally decomposed into formaldehyde gas by polyformaldehyde, and polyformaldehyde becomes gaseous formaldehyde gas from solid-state Escape, so as to realize binding agent removing, the material that also other compositions are high-melting-point, oxidation and heat resistant property is good, such as PP, PE etc..

At present, the catalyst commonly used in skimming processes is nitric acid (HNO₃), the nitric acid (HNO of strong oxidizing property₃) can quickly urge Change cracking POM and it is widely used by industrial production.But nitric acid is dangerous high, the pollution to environment is also big, nitric acid without On the premise of method is substituted, it should reduce its usage amount.The utility model is by setting the recyclable profit of gas-purification separation device 2 With catalyst, reach the dosage for reducing catalyst, mitigate the pollution to environment, reduce the purpose of production cost.

Referring in particular to Fig. 2, the utility model provides a kind of catalysis degreasing stove with atmosphere purification function, including the He of body of heater 1 Coordinate the gas-purification separation device 2 of the body of heater 1, flue outer cover 11, the flue outer cover 11 are installed inside the body of heater 1 Inside is provided with degreasing flue 12, and the material that the degreasing flue 12 is internally provided with for carrying material 13 carries case 14, flue Be provided with body of heater heater strip 15 between outer cover 11 and degreasing flue 12, the sidepiece of body of heater 1 be provided with can fitted seal flue outer cover 11 stove Door component 6, the gas-purification separation device 2 be provided with inlet channel 31 and outlet passageway 32 respectively with degreasing flue 12 and material Case 14 is carried to connect.

Reference picture 2, the gas-purification separation device 2 include hollow outer case 21 and are arranged in the outer case 21 The internal box 22 in portion, is provided with heating mantle 23 between the outer case 21 and internal box 22, the heating mantle 23 is set in interior case Outside body 22, it is provided with inside the internal box 22 and leads to the inwall of internal box 22 cooler bin 24 spaced apart from each other, above-mentioned air inlet Road 31 and outlet passageway 32 are respectively communicated with the upper space of internal box 22 and the lower space of internal box 22.

Preferably, it is provided with the outlet passageway 32 and is easy to the internal gas of internal box 22 being pumped into above-mentioned material load case 14 Air exhauster 33, the material, which carries the inside of case 14 and is provided with, is easy to material to carry the uniform fan 17 of the internal heat of case 14.

Preferably, the internal box 22 is provided with heater strip 25 and thermocouple at it at the gas outlet of outlet passageway 32 26。

Preferably, the bottom of gas-purification separation device 2 is provided with impurity collection port 27, and the impurity collection port 27 connects Lead to the bottom position of internal box 22.

Preferably, the top of body of heater 1 sets combuster 4, and the combustion chamber 4 is communicated to the flue outer cover in body of heater 1 11 inner space, the sidepiece of combustion chamber 4 are connected with natural gas air inlet 41.

Preferably, the body of heater 1 is additionally provided with nitrogen inlet 16, and the nitrogen inlet 16 is communicated to material and carried in case 14 Portion.

Reference picture 2, specifically, indicator lamp 18 is set on the top of body of heater 1, the indicator lamp 18 is arranged on debinding furnace casing Left, upper, front, to facilitate viewing, has safety instruction effect to operating personnel close to the place of corner；Pacify the combustion chamber 4 Above degreasing furnace body 1, flue outer cover 11, and good seal, upper connection air port 42 are connect under combustion chamber 4；The material 13 is put Put and carried in material case 14, discharged by specification neat；The material carries case 14 and is fixed in degreasing flue 12, middle hanging, side Just it is heated；The degreasing flue 12 is fixed in flue outer cover 11, middle hanging, convenient heated.

Preferably, the fan 17 will put in material and carry in case 14；Flue outer cover 11 is fixed in the body of heater 1 of debinding furnace, Outer side seal, there is heat insulation function；The gas-purification separation device 2 will be mounted in the outside rear of body of heater 1 and fixation, and its air inlet is led to Road 31 is connected with the tail gas gas outlet of debinding furnace, i.e., is connected between combustion chamber 4 and degreasing flue 12, and the outlet passageway 32 can Case 14 is carried with heating pipe with material to connect.

Reference picture 3, several body of heater heater strips 15 are fixed between degreasing flue 12 and flue outer cover 11, its point Mode for cloth is as shown in Figure 3.

Reference picture 4, the fire door component 6 include being hinged on the stove door switch arm 61 of the sidepiece of body of heater 1, are hinged on the fire door Fire door 62 on switch arm 61 and the pressing device 63 for being pressed on fire door 62 on body of heater 1, the stove door switch arm 61 On be additionally provided with explosion-proof bolt device 64, corresponded on body of heater 1 fire door 62 position set 4 pressing devices 63, the compression Device 63 is fixed on the front of body of heater 1, and contact-making switch is also equipped with the axostylus axostyle 632 of pressing device 63；Pressing device 63 belongs to two Linkage, fire door 62 is pinned to facilitate；Fire door 62 is fixed on stove door switch arm 61, and fire door 62 can be on stove door switch arm 61 Turn an angle and coordinated with facilitating fire door 62 and body of heater 1 to reach better seal；The stove door switch arm 61 is fixed on degreasing In the frame of furnace body 1, rotatably；The explosion-proof bolt device 64 is arranged on the side of stove door switch arm 61, is had below Contact-making switch.

Reference picture 5, the inner side of fire door 62 are provided with fire door heater strip 65.

Reference picture 6, spring strut 631 that the pressing device 63 includes being fixed on body of heater 1, connect with the spring strut 631 The axostylus axostyle 632 connect, the axostylus axostyle 632 are hinged with threaded rod 633, are provided with the threaded rod 633 and match somebody with somebody with the screw thread of threaded rod 633 That closes tightens handle 634, and the inside of spring strut 631 is provided with compression spring 635, and one end of the axostylus axostyle 632 has compacting machine Structure simultaneously can compress the compression spring 635 by the hold-down mechanism.

Reference picture 7, the explosion-proof bolt device 64 include bolt block 641, spacing short axle 642 and are opened in stove door switch arm Corresponding short axle jack 643 on 61, the end of the bolt block 641 have a ramp structure 6411, and the one of the spacing short axle 642 End and the abutting contact of ramp structure 6411, the spacing short axle 642 can trigger the contact being arranged on stove door switch arm 61 Switch.

Reference picture 8, the sidepiece of cooler bin 24 are provided with condensate film 241, to lift cooling effect, in this present embodiment, The condensate film 241 is rectangle.

The operation of catalysis degreasing stove of the present utility model：

Material 13 is neatly arranged in material first to carry on case 14, then rotates stove door switch arm 61, can make fire door 62 to It is adapted to close sealing station, pulls the threaded rod 633 of 4 pressing devices 63 conllinear with axostylus axostyle 632 respectively, be aligned on fire door 62 Relevant position, then paired angie type mode rotate tighten handle 634 to compression fire door 62 successively, and trigger contact-making switch.Institute The schematic diagram for stating pressing device 63 is as shown in Figure 6.

After fire door 62 is fastened, the bolt block 641 of explosion-proof bolt device 64 is pushed hard, makes the spacing triggering of short axle 642 contact Switch, at this moment, spacing short axle 642 can block stove door switch arm 61 by the short axle jack 643 on stove door switch arm 61, limitation It is closing freely rotating when not being compacted.

After equipment energy normal work, tail gas caused by catalysis degreasing, sub-fraction flowing in combustion chamber 4 burns, a big portion It is diverted into gas-purification separation device 2.After tail gas enters gas-purification separation device 2, heated, cooled down by heating mantle 23 It is cooled at case 24, in the present embodiment, the cooler bin 24 is water tank, is cooled to impurity (paraffin, PE, PP etc.) liquid in gaseous state Change or solidify, and be attached on the surface of cooler bin 24, nitric acid (HNO₃) be liquefied as liquid and flow to bottom half.

Gas, and and N are gasificated under the heating of heater strip 25 again₂Outlet passageway 32 is flowed into together and passes through outlet passageway 32 return degreasing flues 12 are inner to be continued to participate in catalytic reaction.Tail gas caused by catalysis degreasing can again flow into gas purification separation Purification separation in device 2, so moves in endless cycles, and can fully discharge impurity caused by cracking, improves internal work environment, effectively profit With nitric acid (HNO₃), reduce nitric acid (HNO₃) usage amount, can also reduce nitric acid (HNO₃) and nitrogen oxides discharge, improve ring Border, reduce potential safety hazard.And impurity (paraffin, PE, PP etc.) meeting internal cleaning after debinding furnace break-off.

After the completion of above-mentioned technical process, when taking out material 13, operating personnel first should successively unscrew but not exclusively twist 4 pressing devices 63 opened tighten handle 634, and wait makes the pressure in body of heater 1 leak and then be totally released completely compression Device 63, then the bolt block 641 of explosion-proof bolt device 64 is extracted, stove door switch arm 61 is then rotated, opens fire door 62, extract Material 13.

Flue being revealed when body of heater 1 explosion time occurring, the pressure in flue outer cover 11 is very big, can impact fire door 62, fire door 62 Pressure can pass to pressing device 63, at this moment the compression spring 635 of 4 pressing devices 63 is pressurized again, fire door 62 open one Point gap pressure release, pressure can will not impact operating personnel from the surrounding venting of fire door 62, and in explosion-proof bolt device 64 Limit under rotary action, fire door 62 will not be fully opened, and protect operating personnel again.When blast impulse pressure has let out it Afterwards, fire door 62 is again switched off in the presence of the compression spring 635 of pressing device 63.After blast stops, operating personnel should First it is filled with substantial amounts of N₂Body of heater is rinsed, after the inner no nitric acid gas of body of heater 1, then 4 pressures unscrewed successively but not exclusively turned on Tight device 63 tightens handle 634, the pressure in body of heater 1 is leaked and then be totally released completely pressing device 63, and can pull out Go out the bolt block 641 of explosion-proof bolt device 64, rotate stove door switch arm 61 with hand, open fire door 62, observe body of heater situation, investigation Explosion cause.

Above is preferably implement to be illustrated to of the present utility model, but the utility model is created and is not limited to institute Embodiment is stated, those skilled in the art can also make a variety of be equal on the premise of without prejudice to the utility model spirit Deformation is replaced, and these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (10)

1. A kind of 1. catalysis degreasing stove with atmosphere purification function, it is characterised in that：Including body of heater (1) and coordinate the body of heater (1) Gas-purification separation device (2), flue outer cover (11) is installed inside the body of heater (1), the flue outer cover (11) is internal Degreasing flue (12) is installed, the material that the degreasing flue (12) is internally provided with for carrying material (13) carries case (14), Body of heater heater strip (15) is provided between flue outer cover (11) and degreasing flue (12), body of heater (1) sidepiece is provided with can fitted seal stove The fire door component (6) of courage outer cover (11), the gas-purification separation device (2) are provided with inlet channel (31) and outlet passageway (32), and it carries case (14) with degreasing flue (12) and material respectively and connected.
2. A kind of 2. catalysis degreasing stove with atmosphere purification function according to claim 1, it is characterised in that：The gas is net Changing separator (2) includes hollow outer case (21) and is arranged on the internal internal box (22) of the outer case (21), described Heating mantle (23) is provided between outer case (21) and internal box (22), the heating mantle (23) is set in internal box (22) outside Portion, internal be provided with of the internal box (22) are led to internal box (22) inwall cooler bin spaced apart from each other (24), above-mentioned air inlet Road (31) and outlet passageway (32) are respectively communicated with the upper space of internal box (22) and the lower space of internal box (22).
3. A kind of 3. catalysis degreasing stove with atmosphere purification function according to claim 2, it is characterised in that：The outlet leads to The air exhauster (33) for being easy to that internal box (22) internal gas is pumped into above-mentioned material load case (14), the thing are provided with road (32) Material, which carries to be provided with inside case (14), is easy to material to carry the uniform fan of case (14) internal heat (17).
4. A kind of 4. catalysis degreasing stove with atmosphere purification function according to claim 2, it is characterised in that：The internal box (22) heater strip (25) and thermocouple (26), the cooler bin (24) are provided with the gas outlet of outlet passageway (32) at it Sidepiece is provided with condensate film (241).
5. A kind of 5. catalysis degreasing stove with atmosphere purification function according to claim 2, it is characterised in that：The gas is net Change separator (2) bottom and be provided with impurity collection port (27), the impurity collection port (27) is communicated to the bottom of internal box (22) Portion position.
6. A kind of 6. catalysis degreasing stove with atmosphere purification function according to claim 1, it is characterised in that：The body of heater (1) top sets combuster (4), and the combustion chamber (4) is communicated to the inner space of the flue outer cover (11) in body of heater (1), Combustion chamber (4) sidepiece is connected with natural gas air inlet (41).
7. A kind of 7. catalysis degreasing stove with atmosphere purification function according to claim 1, it is characterised in that：The body of heater (1) nitrogen inlet (16) is additionally provided with, the nitrogen inlet (16) is communicated to material and carries case (14) inside.
8. A kind of 8. catalysis degreasing stove with atmosphere purification function according to claim 1, it is characterised in that：The fire door group Part (6) includes stove door switch arm (61), the fire door being hinged on the stove door switch arm (61) for being hinged on body of heater (1) sidepiece (62) and the pressing device (63) for being pressed on fire door (62) on body of heater (1), also set on the stove door switch arm (61) Explosion-proof bolt device (64) is equipped with, fire door heater strip (65) is provided with the inside of the fire door (62).
9. A kind of 9. catalysis degreasing stove with atmosphere purification function according to claim 8, it is characterised in that：It is described to compress dress Putting (63) includes the spring strut (631) being fixed on body of heater (1), the axostylus axostyle (632) being connected with the spring strut (631), described Axostylus axostyle (632) is hinged with threaded rod (633), is provided with the threaded rod (633) and is tightened with what threaded rod (633) screw thread coordinated Handle (634), the spring strut (631) is internal to be provided with compression spring (635), and one end of the axostylus axostyle (632) has compacting machine Structure simultaneously can compress the compression spring (635) by the hold-down mechanism.
10. A kind of 10. catalysis degreasing stove with atmosphere purification function according to claim 8, it is characterised in that：It is described explosion-proof Bolt device (64) includes bolt block (641), spacing short axle (642) and is opened in corresponding short axle on stove door switch arm (61) and inserts Hole (643), the end of the bolt block (641) have a ramp structure (6411), one end of the spacing short axle (642) with it is described Ramp structure (6411) abutting contact, the spacing short axle (642) can trigger the triggering being arranged on stove door switch arm (61) and open Close.