CN102528044B

CN102528044B - Degreasing device

Info

Publication number: CN102528044B
Application number: CN 201210045771
Authority: CN
Inventors: 姬祖春; 顾晓明; 顾祖良
Original assignee: P-TECH POWDER INJECTION MOLDING CHANGSHU PTE LTD
Current assignee: P-TECH POWDER INJECTION MOLDING CHANGSHU PTE LTD
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2013-05-29
Anticipated expiration: 2032-02-27
Also published as: CN102528044A

Abstract

The invention discloses a degreasing device and belongs to the field of the degreasing device of a powder metallurgy injection molding part. The degreasing device comprises a furnace pipe platform, a furnace pipe, a furnace body, a trap, a vacuumizing mechanism and a protective gas introducing tube, wherein the center of one side of the furnace pipe platform is provided with a base; the base is provided with a longitudinal through hole; the side surface of the base is provided with lateral through holes; the furnace pipe is arranged on the furnace pipe platform; the furnace body is sheathed at the exterior of the furnace pipe; a group of electric heating rods are laid in the inner wall of the furnace body; the trap is fixed on the center of one side of the furnace pipe platform; the vacuumizing mechanism is arranged on one side of the furnace body; one end of the protective gas introducing tube extends into the furnace pipe cavity; the other end of the protective gas introducing tube is connected with a protective gas source device; the trap is provided with a containing cavity; a first clean ball is arranged in the containing cavity; the trap is provided with a trap jacket; one side of the trap jacket is connected with a water inlet joint; the bottom of the trap jacket is adapted with a water outlet joint; the center of the bottom of the trap is adapted with a degreasing hole; and the degreasing hole is provided with a valve. The degreasing device has the advantages that the degreasing speed can be improved, the degreasing device is favorable for loading and discharging, and is convenient to replace, energy-saving and environmentally-friendly.

Description

Degreasing plant

Technical field

The invention belongs to powder metallurgy injection-molded parts debinding furnace technical field, be specifically related to a kind of degreasing plant

Background technology

Metal Injection Molding (Metal Injection Molding, be called for short MIM) be multidisciplinary the interpenetrating and the technology of intersecting such as collection plastics molding process, polymer chemistry, powder metallurgy technology and Metal Material Science, utilize mould can disposable injection moulding to go out the product of complicated shape and made the structural member of high density, high accuracy and 3 D complex shape by sintering.This technology takes the lead in being invented in year in last century (1973) by California, USA Parmatech company, and early eighties is used widely at American-European and Japan etc.This technology have processing step few, need not to cut or on a small quantity cutting and the high strong point of economic benefit, and can overcome that traditional powder metallurgical technique extrudate density is low, material is inhomogeneous, mechanical and physical performance is poor, the shortcoming of the slim and baroque part of easy-formation not.

Metal powder injection molding is realized by adding binding agent, namely give the sufficient flowability of metal dust and use the blank that acquisition has the specific products feature by binding agent, blank removes by the binding agent that follow-up degreasing process will before add, and obtains having again the product of metal or ceramic performance through high temperature sintering.Specifically can be summarized by following flow process: metal dust mixes (abbreviation batch mixing), granulation, the post processing by mold injects moulding, degreasing (industry also claims unsticking), sintering and necessity with binding agent.

The system that is used for the known binding agent of metal powder injection molding mainly contains paraffinic base system (occupying an leading position at present) and aldehyde resin system.The removal methods of binding agent mainly contains four kinds: the one, and the solvent degreasing method; The 2nd, hot degreasing method; The 3rd, siphon degreasing method; The 4th, the catalysis degreasing method of adhesive special system.The solvent degreasing method is that principle by organic solvent extraction is first with the part component in the injection molding blank (also claiming constituent element) sucking-off, remove all the other components by hot degreasing method again, because this method needs converter, namely need blank is transferred to thermal debinding furnace from the solvent stove, therefore comparatively bother.Siphon degreasing method is that blank is placed on the siphon material, and more than the fusing point of one of them component in being heated to binding agent, this component sucking-off that the capillary force by the siphon material will melt is to reach the purpose that removes the wherein a kind of component in the binding agent.The catalysis degreasing method is to utilize aldehyde resin depolymerization in acid atmosphere to remove most of binding agent for the characteristic of formaldehyde gas, but this method has the fastidious property to binder system, namely be only applicable to the binding agent of aldehyde resin system, and be not suitable for the binding agent of paraffin system.

Above-mentioned four kinds of degreasing methods all need to use corresponding degreasing plant, and in published Chinese patent literature, be no lack of and be seen in, omit " liquid solvent extracting and degreasing device that is used for metal powder injection molded blank " such as the CN101653665A recommendation to exemplify, this device is applicable to aforesaid solvent degreasing method; " a kind of powder metallurgy injection moulding fast defat stove " that CN202070764U provides, this debinding furnace is equally applicable to aforesaid solvent degreasing method; " solvent degreasing device for powder injection molding blanks " that CN202113637U introduces, this degreasing plant still is applicable to the solvent degreasing method; " a kind of powder injection forming gradient negative pressure hot defatting method " that CN100486737C discloses.

" vacuum degreasing, the sintering integrated furnace " typical as practical new patent Granted publication CN2595500Y discloses, this patent scheme belongs to the siphon degreasing plant category, has the alleged technique effect of its Instructions Page 2 the 7th to the 9th row, but there is following shortcoming: one, degreasing speed is slow, because only be difficult under negative pressure state the adhesive gas that is volatilized by blank in the body of heater is drawn outside the stove with the exhaust tube in bottom of furnace body is insinuated into body of heater (patent claims the body of heater bleed-off passage); Its two, the blank and take out finished product inconvenience of packing in the body of heater, and patent does not provide the technology enlightenment of the blank of packing in the stove yet; Its three, the structure of body of heater is lost rationally and is not easy to cleaning, because in use, especially in the blank loading furnace process, unavoidably exists blank to cause the damage situation, if can not in time clear up then can affect follow-up use; They are four years old, patent does not provide the enlightenment of concrete structure of the trap of the fat (yet claiming wax) that removes for collection, yet, the whether reasonable quality to degreasing effect of trap structure can have a direct impact, because if the fat of deviating from the body of heater can not effectively be caught storage and be caught, for example to extraneous disperse, can affect so on the one hand the environment of operation field, on the other hand the vacuum device that is connected with trap is exerted an influence, for example can stop up vavuum pump, can make on the one hand skimming processes is that the furnace insulation time is tediously long and waste energy again.

In view of above-mentioned prior art is necessary in addition rational modification, for this reason, the applicant has done useful design, and technical scheme described below produces under this background

Summary of the invention

Task of the present invention is to provide a kind of and helps to improve degreasing speed, have and be convenient to feed and discharging, be conducive to clean and be of value to the degreasing plant that the binding agent gas that comes from body of heater is effectively caught.

Task of the present invention is finished like this, a kind of degreasing plant, comprise the flue platform with one group of balance leg, this flue platform under the use state towards on the central authorities of a side be provided with at least one base, a spaced apart side that is provided with from base connects the longitudinal hole to opposite side on base, each longitudinal hole is corresponding with the flue platform through hole on being opened in the flue platform and communicate, be provided with one group of cross through hole in the side of base and around the circumferencial direction of base is spaced apart, each cross through hole communicates with described longitudinal hole; One flue, this flue are arranged on the described flue platform, and the flue chamber of this flue is corresponding with described base; One body of heater, this body of heater are set in outside the described flue, flue is sealed, and be laid with for one group of electrically heated rod described flue being implemented radiation heating at the inwall of this body of heater, and this group electrically heated rod arranges along the short transverse interval of body of heater; One trap, this trap are fixed on described flue platform towards the central part of a side of described balance leg; One vacuum device, this vacuum device are arranged on a side of described body of heater, and are connected with described trap pipeline; One protective gas inlet tube; one end of this protective gas inlet tube is in described flue platform is stretched over described flue chamber; and the other end of protective gas inlet tube is connected with the protective gas compressed air source unit; described trap has corresponding with described flue platform through hole and the cavity volume that is used for accepting to come from the binding agent gas in the described flue chamber that communicate; the first cleaning ball is set in this cavity volume; and this trap consists of a trap chuck; a side of this trap chuck be connected with one communicate with the trap chuck be used in the trap chuck, introducing cooling water and use and make the described binding agent gas cooled that enters in the described cavity volume and productive set in the water inlet interface of described the first cleaning ball; be used for and be incorporated into the water outlet mouthpiece that the cooling water in the trap chuck is drawn by the water inlet interface and connect one in the bottom of trap chuck; be equipped with an exhaust tube interface that communicates with described cavity volume at trap and the opposite side of described water inlet interface; connect an end of exhaust tube at the exhaust tube interface; and the other end of exhaust tube is connected with described vacuum device; middle position in the bottom of trap has connected row's fat mouth, is equipped with a valve at this row's fat mouth.

In a specific embodiment of the present invention, the shape of described flue platform is disc, and is arranged at intervals with one group of tab in the edge of the circumferencial direction of flue platform; The shape of described flue is bell shape, and expanding to establish to consist of around the circumferencial direction of outer wall at the outer wall of the bottom of flue has a cooperation dish, in the edge of this cooperation dish and around the spaced apart equal locking catching groove of the position quantity corresponding with described tab that is provided with of the circumferencial direction of cooperation dish; On the outer wall of the bottom of described body of heater and around the circumferencial direction of body of heater, consist of a fixed flange is arranged, on this fixed flange and around the spaced apart ring flange holddown groove that quantity equates and the position is corresponding that is provided with quantity and described locking catching groove of the circumferencial direction of fixed flange, described tab and described locking catching groove and ring flange holddown groove lock.

In another specific embodiment of the present invention, be extended with one or a plurality of the first guide rod seat in the edge of described flue platform, be installed with a guide rod at the first guide rod seat; Be extended with equate and second guide rod seat that the position is corresponding of quantity of quantity and the first guide rod seat in the edge of described cooperation dish, this second guide rod seat and described guide rod are slidingly matched; Be extended with equate and the 3rd guide rod seat that the position is corresponding of quantity of quantity and the first guide rod seat in the edge of described fixed flange, the 3rd guide rod seat overlap with described the second guide rod seat and equally and described guide rod be slidingly matched.

In another specific embodiment of the present invention, on the outer wall at the top of described flue and be positioned at middle position and be fixed with a flue hanger, described body of heater has a stove, the top seal of this bell and body of heater is fixed, on the outer wall of this bell and be positioned at middle position and be fixed with a bell hanger.

In another specific embodiment of the present invention, outside described body of heater, be provided with one group of power supply connecting plate, described electrically heated rod is connected with the power supply connecting plate by power line, and the power line outside being stretched over body of heater is arranged with insulating sleeve.

Also have in the specific embodiment of the present invention, be fixed with one at the outer wall of described body of heater and be used for described power supply connecting plate is covered the insulating protective plate that protects and the position is corresponding with the power supply connecting plate.

More of the present invention and in specific embodiment, described the first cleaning ball is the steel wire pelletizing.

Technical scheme provided by the invention is owing to be provided with base at the flue platform, and offered the vertical, horizontal through hole at base, longitudinal hole communicates with trap through flue platform through hole, under the effect of the vacuum device that is connected with trap, and under the electrically heated rod heating, the binding agent that the blank in the flue chamber that is arranged in flue is overflowed flows to trap under the effect of windstream fast, thereby can improve degreasing speed; Flue and body of heater are split-type structural, therefore are conducive to charging and discharging and have be convenient to the flue platform is implemented cleaning, and can change the electrically heated rod of body of heater easily; Trap has the trap chuck, introduce in the trap chuck that to be conducive to make the binding agent gas that enters in the cavity volume under the state of cooling water be solid-state by the gaseous state fast transition and accumulate on the first cleaning ball, both can avoid the obstruction to vacuum device, can shorten again dewaxing and namely remove time of binding agent and energy savings, and have the feature of environmental protection.

Description of drawings

Fig. 1 is the embodiments of the invention structure chart.

Fig. 2 is the cutaway view of Fig. 1.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the present invention program to the description of embodiment, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.

Ask for an interview Fig. 1 and Fig. 2, provided a flue platform 1, this flue platform 1 has one group and is used for flue platform 1 is in the balance leg 11 that soars in the terrace of field of employment, that is to say flue platform 1 and terrace are maintained a certain distance, under the flue platform 1 use state towards on a side central spaced apart be provided with one group of flue platform through hole 13(Fig. 2 and show), be stacked with a pair of base 12 at the position corresponding to flue platform through hole 13, certainly the quantity of base 12 is not subject to illustrating the restriction of quantity, for example may be as few as one also can as many as three or more, its effect is mainly used in regulating height.A spaced apart side that is provided with from base 12 connects one group of longitudinal hole 121 to opposite side on base 12, each longitudinal hole 121 is corresponding with aforesaid flue platform through hole 13, and be provided with one group of cross through hole 122 in the side of base 12 around the circumferencial direction of base 12 is spaced apart, each cross through hole 122 communicates (Fig. 2 shows) with aforesaid longitudinal hole 121.Preferably, between base 12 and flue platform 11, add a sealing ring 123, play the edge of base 12 and the sealing function between the flue platform 1 by sealing circle 123.

The shape of flue platform 1 is disc, in the edge of this flue platform 1 and around the circumferencial direction of the flue platform 1 one group of tab 14 that has been equidistantly spaced, and is furnished with nut on each tab 14.In addition, be extended with the first guide rod seat 15(that quantity is not subject to illustrating restricted number in the edge one of flue platform 1 and be illustrated as two), be fixed with a guide rod 151 on each first guide rod seat 15.

One shape is arranged on the flue platform 1 just as the flue 2 of bell jar, and the flue chamber 21 of this flue 2 is corresponding with aforesaid base 12, that is to say, along with flue 2 is set to flue platform 1 and makes base 12 be positioned at flue chamber 21.Shown in figure, outer wall in the bottom of flue 2 extends to consist of has one to connect dish 22, connect dish 22 edge and be provided with one group of locking catching groove 221 around the circumferencial direction that connects dish 22 is spaced apart at this, the quantity of locking catching groove 221 is equal with the quantity of aforesaid tab 14 and the position is corresponding.Solid welding has a flue hanger 23 on the outer wall at the top of flue 2, in addition, is extended with the second guide rod seat 222 that quantity equates with the quantity of the first guide rod seat 15 in the edge of cooperation dish 22 and in the position corresponding to aforesaid the first guide rod seat 15.

One body of heater, 3 covers are put outside aforesaid flue 2, be laid with electrically heated rod 31 at the inwall of this body of heater 3 and along the short transverse interval of body of heater 3, by 31 pairs of flue 2 radiation heatings of electrically heated rod, the power line 311 of electrically heated rod 31 is connected with body of heater 3 power supply connecting plate 34 power supplys outward, and the power line outside being stretched over body of heater 3 311 is arranged with insulating sleeve 3111.Body of heater 32 has a chuck 36, is equipped with at chuck 36 that cooling medium is introduced interface 361 and cooling medium is drawn interface 362, and wherein, cooling medium is introduced interface 361 is drawn interface 362 corresponding to cooling medium below.Cooling medium (water) is drawn interface 362 by cooling medium and is drawn after also cooling medium is introduced interface 361 introducing chucks 36, to form circulating reflux.Top at body of heater 3 is equipped with a bell 33 with one group of securing member (cooperations of bolts and nuts), bell 33 has bell chuck 332, be provided with at bell chuck 332 that bell chuck cooling medium is introduced interface 3321 and bell chuck cooling medium is drawn interface 3322, the introducing of bell chuck cooling medium, outgoing interface 3321,3322 communicate with bell chuck 332.In addition, be fixed with a bell hanger 331 at the top of bell 33.

Outer wall in the bottom of body of heater 3 is outward extended with a fixed flange 32, be provided with the ring flange holddown groove 321 that quantity and aforesaid locking catching groove 221 are equal and the position is corresponding at the edge of this fixed flange 32 and around the circumferencial direction of fixed flange 32 is spaced apart, and on fixed flange 32, be extended with the 3rd guide pillar seat 322 that quantity equates with the second guide pillar seat 222 in the position corresponding to aforesaid the second guide pillar seat 222.Preferably, the inwall of body of heater 3 arranges furnace insulation flame retardant coating 37, and the inwall of same bell 33 arranges bell thermal insulation fire-resistant layer 333.

After the cooperation dish hole 2221 that flue 2 is offered on by the second guide pillar seat 222 on the cooperation dish 22 is aimed at guide rods 151 and is arranged on the flue platform 1, and when guide rods 151 are aimed at and after cover places flue 2 outer in the ring flange hole 3221 of offering on the 3rd guide rod seat 322 of the fixed flange 32 of body of heater 3, flue 2 and body of heater 3 are locked on the flue platform 1 reliably in the position corresponding to the ring flange holddown groove 321 that locks catching groove 221 and overlap with locking catching groove 221 by tab 14, vice versa.Preferably, in order to ensure safety, can arrange one outside body of heater 3 and in the position corresponding to aforesaid power supply connecting plate 34 is used for power supply connecting plate 34 is covered the insulating protective plate 35 that protects, figure 2 illustrates a pair of cramp bar 351 for supporting insulating protective plate 35, cramp bar 351 is fixing with body of heater 3.

Please continue to see Fig. 1 and Fig. 2, provided a trap 4, this trap 4 has a cavity volume 41, and cavity volume 41 is interior, and the first cleaning ball 411, the first cleaning balls 411 are set is the steel wire pelletizing.When with screw 43 and aforesaid flue platform 1 towards under a side and after fixing corresponding to the position of base 12, cavity volume 41 just communicates with aforesaid flue platform through hole 13.Preferably, trap 4 consists of a trap chuck 44, has connected into water interface 441 and water outlet mouthpiece 442 at this trap chuck 44, and the interface 441 of wherein intaking is positioned at the sidepiece of trap chuck 44, and water outlet mouthpiece 442 is positioned at the bottom of trap chuck 44.Preferably, also be equipped with a row's fat mouth 45 that communicates with cavity volume 41 in the bottom of trap 4, be equipped with valve 451 at row's fat mouth 45.Side at trap 4 is equipped with an exhaust tube interface 42, connect an end of an exhaust tube 421 at this exhaust tube interface 42, and the other end of exhaust tube 421 is connected with the vacuum device 5 of a side that is arranged on body of heater 3.

Blank degreasing in being opposite to the flue chamber 21 of flue 2 namely removes in the process of binding agent, water inlet interface 441 is introduced cooling water such as running water to trap chuck 44, and water outlet mouthpiece 442 is drawn the cooling water in the trap chuck 44, to form circulating reflux the first cleaning ball 411 in the cavity volume 41 is cooled off, make to enter into binding agent gases in the cavity volume 41 with gaseous state and change into solid-state or claim and be tending towards solid-state and accumulate on the first cleaning ball 411, to embody the technique effect described in the superincumbent advantageous effect of the applicant hurdle.Again, when when degreasing plant quits work state, then can pass into 70-80 ℃ hot water to capturing chuck 44, and the valve 451 on the row's of unlatching fat mouth 45, the binding agent that before accumulates on the first cleaning ball 411 is dissolved, until discharged by row's fat mouth 45.

One end of the protective gas inlet tube 6 of illustrating among the figure is being stretched over behind flue platform 1 in the aforesaid flue chamber 21, and corresponding to the top in flue chamber 21, and the other end of protective gas inlet tube 6 is connected with the protective gas compressed air source unit.

Aforesaid vacuum device 5 comprises vavuum pump 51 and capture tank 52, vavuum pump 51 is arranged on the terrace of field of employment, the air inlet of capture tank 52 is connected with aforesaid exhaust tube 421, and be provided with valve 4211, vacuum meter 4212 and Pressure gauge 4213 at this exhaust tube 421, wherein, vacuum meter 4212 is between valve 4211 and Pressure gauge 4213, and the gas outlet of capture tank 52 is connected with vavuum pump 51 by pipeline 521.Be equivalent to the second cleaning ball 522 of aforesaid the first cleaning ball 411 in capture tank 52 interior settings.

Use when of the present invention, table platform 1 is arranged in the melt pit 81 of excavation on the terrace 8 together with flue 2 and body of heater 3.

The applicant describes use of the present invention in conjunction with Fig. 1 and Fig. 2, as aforementioned, the present invention is arranged on excavated out on the terrace 8 of field of employment and preferably use in the melt pit 81 that concrete casting spreads, specifically: balance leg 11 is supported in the melt pit 81, thereby be positioned at melt pit 81 by flue platform 1 together with inner furnace 2 and body of heater 3, vacuum device 5 then is arranged on the terrace 8, and is positioned at a side of body of heater 3.

Injection molding blank is packed in the siphon vessel 7 that fills siphon material 71 after will being mixed with the adhesive of paraffinic base system by metal dust (present embodiment is the stainless steel metal powder), and by siphon material 71 blank is buried, namely buried by 71 pairs of blanks of siphon material, again siphon vessel 7 is built on base 12 together with blank, then flue 2 and body of heater 3 are passed through the hoist tool handling to flue platform 1, and with tab 14 and locking catching groove 222 and 321 lockings of ring flange holddown groove.The binding agent of aforesaid paraffinic base system is known formulated by paraffin, polyethylene and stearic acid, and described siphon material 71 is sand (for example common emergy or quartz sand).By the operation to electrical control gear such as electric control box, open the vavuum pump 51 of vacuum device 5, the flue chamber 21 of flue 2 is evacuated to 10Pa.Same by the operation to electrical control gear such as electric control box; make electrically heated rod 31 switch on and work; insulation 60min when the temperature in the flue chamber 21 rises to 60 ℃; introduce hydrogen or argon gas by protective gas inlet tube 6 simultaneously; the flow of hydrogen or argon gas is 0.5L/min; this moment, first component (also can claim the first constituent element) of the binding agent in the blank under the effect of vacuum device 5 was that paraffin effusion blank under the effect of windstream enters siphon material 71 interior formation capillary channels; aforementioned the first component that enters in the siphon material 71 flows with gaseous form effusion siphon material 71 and towards trap 4; specifically gap and the cross through hole on base 12 122 through adjacent siphon vessel 7 enters in the cavity volume 41 of trap 4 by flue platform through hole 13; and making the first component that enters in the cavity volume 41 under the state of cold water is introduced in trap chuck 44 circulation of trap 4 is that paraffin build is placing on the first cleaning ball 411 in the cavity volume 41; the first component that makes by this binding agent in the blank is that paraffin removes; continue to be warming up to 450 ℃ and insulation 120min; making essentially identical the second component of fusing point each other in the binding agent is that polyethylene and the 3rd component are that stearic acid removes; presintering then heats up; the intensification temperature is 750 ℃; after the insulation of 60min; cooling; remove successively body of heater 3 and flue 2, obtain degreasing and injection molding powder metallurgy blank presintering.In above-mentioned degreasing and presintering process, pass into all the time cold water to the chuck 36 of body of heater 3 and to the bell chuck 332 of bell 33, same, trap chuck 44 is also passed into cold water.In the time will implementing cleaning to the first cleaning ball 411 in the cavity volume 41 of trap 4, then pass into 70-80 ℃ hot water so that with the binding agent of productive set on the first cleaning ball 411 molten except and discharge (open valve 451) from row's fat mouth 45

Claims

1. A kind of degreasing plant, it is characterized in that comprising the flue platform (1) with one group of balance leg (11), this flue platform (1) under the use state towards on the central authorities of a side be provided with at least one base (12), connect longitudinal hole (121) to opposite side in the upper spaced apart side that is provided with from base (12) of base (12), each longitudinal hole (121) is corresponding with the flue platform through hole (13) on being opened in flue platform (1) and communicate, in the side of base (12) and around the spaced apart one group of cross through hole (122) that is provided with of circumferencial direction of base (12), each cross through hole (122) communicates with described longitudinal hole (121); One flue (2), this flue (2) is arranged on the described flue platform (1), and the flue chamber (21) of this flue (2) is corresponding with described base (12); One body of heater (3), this body of heater (3) is set in outside the described flue (2), flue (2) is sealed, and the inwall at this body of heater (3) is laid with for one group of electrically heated rod (31) of described flue (2) being implemented radiation heating, and this group electrically heated rod (31) arranges along the short transverse interval of body of heater (3); One trap (4), this trap (4) are fixed on described flue platform (1) towards the central part of a side of described balance leg (11); One vacuum device (5), this vacuum device (5) is arranged on a side of described body of heater (3), and is connected with described trap (4) pipeline; One protective gas inlet tube (6); one end of this protective gas inlet tube (6) is in described flue platform (1) is stretched over described flue chamber (21); and the other end of protective gas inlet tube (6) is connected with the protective gas compressed air source unit; described trap (4) has corresponding with described flue platform through hole (13) and the cavity volume (41) that is used for accepting to come from the binding agent gas in the described flue chamber (21) that communicate; the first cleaning ball (411) is set in this cavity volume (41); and this trap (4) consists of a trap chuck (44); a side of this trap chuck (44) be connected with one communicate with trap chuck (44) be used for introducing cooling water in the trap chuck (44) and use and make the described binding agent gas cooled that enters in the described cavity volume (41) and productive set in the water inlet interface (441) of described the first cleaning ball (411); be used for and be incorporated into the water outlet mouthpiece (442) that the cooling water in the trap chuck (44) is drawn by water inlet interface (441) and connect one in the bottom of trap chuck (44); be equipped with an exhaust tube interface (42) that communicates with described cavity volume (41) at trap (4) and the opposite side of described water inlet interface (441); connect an end of exhaust tube (421) at exhaust tube interface (42); and the other end of exhaust tube (421) is connected with described vacuum device (5); middle position in the bottom of trap (4) has connected row's fat mouth (45), is equipped with a valve (451) at this row's fat mouth (45).

2. Degreasing plant according to claim 1 is characterized in that the shape of described flue platform (1) is disc, and is arranged at intervals with one group of tab (14) in the edge of the circumferencial direction of flue platform (1); The shape of described flue (2) is bell shape, and expanding to establish to consist of around the circumferencial direction of outer wall at the outer wall of the bottom of flue (2) has a cooperation dish (22), in the edge of this cooperation dish (22) and around the spaced apart equal locking catching groove (221) of the position quantity corresponding with described tab (14) that is provided with of the circumferencial direction of cooperation dish (22); On the outer wall of the bottom of described body of heater (3) and around the circumferencial direction of body of heater (3), consist of a fixed flange (32) is arranged, upper and around the spaced apart ring flange holddown groove (321) that quantity equates and the position is corresponding that is provided with quantity and described locking catching groove (221) of the circumferencial direction of fixed flange (32), described tab (14) locks with described locking catching groove (221) and ring flange holddown groove (321) at this fixed flange (32).

3. Degreasing plant according to claim 2 is characterized in that being extended with one or a plurality of the first guide rod seat (15) in the edge of described flue platform (1), is installed with a guide rod (151) at the first guide rod seat (15); Be extended with equate and second guide rod seat (222) that the position is corresponding of quantity of quantity and the first guide rod seat (15) in the edge of described cooperation dish (22), this second guide rod seat (222) is slidingly matched with described guide rod (151); Be extended with equate and the 3rd guide rod seat (322) that the position is corresponding of quantity of quantity and the first guide rod seat (15) in the edge of described fixed flange (32), the 3rd guide rod seat (322) overlap with described the second guide rod seat (222) and equally and described guide rod (151) be slidingly matched.

4. Degreasing plant according to claim 1 and 2, it is characterized in that on the outer wall at the top of described flue (2) and be positioned at middle position being fixed with a flue hanger (23), described body of heater (3) has a bell (33), the top seal of this bell (33) and body of heater (3) is fixed, on the outer wall of this bell (33) and be positioned at middle position and be fixed with a bell hanger (331).

5. Degreasing plant according to claim 1, it is characterized in that outside described body of heater (3), being provided with one group of power supply connecting plate (34), described electrically heated rod (31) is connected with power supply connecting plate (34) by power line (311), and the power line (311) outside being stretched over body of heater (3) is arranged with insulating sleeve (3111).

6. Degreasing plant according to claim 5 is characterized in that being fixed with one for described power supply connecting plate (34) is covered the insulating protective plate (35) that protects and the position is corresponding with power supply connecting plate (34) at the outer wall of described body of heater (3).

7. Degreasing plant according to claim 1 is characterized in that described the first cleaning ball (411) is the steel wire pelletizing