CN204321195U - A kind of debinding furnace - Google Patents
A kind of debinding furnace Download PDFInfo
- Publication number
- CN204321195U CN204321195U CN201420766859.9U CN201420766859U CN204321195U CN 204321195 U CN204321195 U CN 204321195U CN 201420766859 U CN201420766859 U CN 201420766859U CN 204321195 U CN204321195 U CN 204321195U
- Authority
- CN
- China
- Prior art keywords
- gas
- heater
- debinding furnace
- chamber
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005238 degreasing Methods 0.000 claims abstract description 27
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 104
- 238000000034 method Methods 0.000 claims description 20
- 239000002737 fuel gas Substances 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 230000001143 conditioned effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 32
- 229910052757 nitrogen Inorganic materials 0.000 description 16
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 9
- 229910017604 nitric acid Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Abstract
A kind of debinding furnace; comprise body of heater, heating component, bin; bin is used for being placed to parison; body of heater is also provided with air inlet, pipeline and exhaust outlet, and air inlet is used for input protection gas, and pipeline is for inputting catalysis material to carry out degreasing to one-tenth parison; debinding furnace also comprises the forced exhaust unit being connected to exhaust outlet; forced exhaust unit is used for passing into Compressed Gas, can form high velocity air after Compressed Gas enters forced exhaust unit, and high velocity air impels the gas in body of heater to discharge.
Description
Technical field
The utility model relates to a kind of debinding furnace, particularly relates to the catalysis degreasing stove that a kind of metal dust is shaping.
Background technology
Metal dust is shaping is a kind of novel powder metallurgy forming technology, is mixed to form batch mixing aftershaping and is formed into parison at metal powder granulates and binding agent.Become parison must remove a certain amount of binding agent in its base before sintering, this process is called degreasing.One-tenth parison is generally put into catalysis degreasing stove by ungrease treatment; first heat in debinding furnace; and by continuing to pass in stove through the protective gas (being generally nitrogen) of preheating, furnace air is drained; again catalysis material is inputted in stove the binding agent catalytic decomposition at a certain temperature made in parison, to remove into the binding agent in parison.
Conventional catalysis degreasing stove, carrying out in the process of degreasing, producing some fuel gas (as formaldehyde, methane, propylene, ethene etc.) to one-tenth parison, because in stove, nitrogen passes into constantly, combustible gas is known from experience the exhaust outlet discharge from debinding furnace and is done burning process, to prevent fuel gas contaminated environment in exhaust outlet outlet to it.But combustable gas concentration is high in debinding furnace, fuel gas easily produces tempering detonation from during exhaust outlet Natural excrement burning process, there is very large potential safety hazard.Separately, in the process of after becoming parison degreasing to complete, body of heater being rinsed, fuel gas in body of heater and catalysis material (the being generally red fuming nitric acid (RFNA)) velocity of discharge slower, and the gas at dead angle is not easily discharged in body of heater, when blow-on picks and places, in body of heater, the gas at dead angle to disperse in air, all can exist working environment and operating personnel and has a strong impact on.
Utility model content
In view of this, be necessary to provide one to raise the efficiency, and the catalysis degreasing stove that security is high.
A kind of debinding furnace; comprise body of heater, heating component, bin; this bin is used for being placed to parison; this body of heater is also provided with air inlet, pipeline and exhaust outlet; this air inlet is used for input protection gas; this pipeline is for inputting catalysis material to carry out degreasing to this one-tenth parison; this debinding furnace also comprises the forced exhaust unit being connected to this exhaust outlet; this forced exhaust unit is used for passing into Compressed Gas; can form high velocity air after this Compressed Gas enters this forced exhaust unit, this high velocity air impels the gas in this body of heater to discharge.
Further, this forced exhaust unit comprises housing, offer in this housing be interconnected suction muffler, mixed flow chamber and the inlet chamber that is communicated with this mixed flow chamber, this suction muffler is connected with this exhaust outlet, this Compressed Gas passes into this mixed flow chamber through this inlet chamber and forms high velocity air, make to produce negative pressure in this mixed flow chamber, and then the gas in body of heater is discharged.
Further, this inlet chamber comprises the inlet channel, annular chamber and the some jet flow groove that are connected successively, each jet flow groove is communicated with this mixed flow chamber and forms jet angle with its central shaft line, this Compressed Gas enters this annular chamber through this inlet channel, and then sprays into this mixed flow chamber formation high velocity air from this jet flow groove.
Further, this inlet chamber is a cannelure, it comprises the air inlet duct, air channel and the air discharge duct that are connected successively, this air discharge duct is communicated with this mixed flow groove and has angle with its central shaft is linear, and this Compressed Gas enters this mixed flow chamber through this air inlet duct, air channel and air discharge duct and forms high velocity air.
Further, this debinding furnace also comprises an air inlet pipe, also offers the interface be communicated with this inlet chamber in this housing, and this air inlet pipe is plugged in this interface and enters this inlet chamber to make this Compressed Gas from this air inlet pipe.
Further; this debinding furnace also comprises the flow valve being connected to this air inlet place; this flow valve is for controlling and detecting the gas flow passing into protective gas; this air inlet pipe is provided with draught damper; this draught damper is used for the flow of this Compressed Gas of detection and control, and this draught damper controls the flow of this Compressed Gas to make the gas flow in this body of heater of discharge suitable with the gas flow entered in this body of heater.。
Further, this debinding furnace also comprises a tube connector, and these tube connector two ends connect this exhaust ports and this forced exhaust unit respectively.
Further, this debinding furnace also comprises blast pipe, this blast pipe is connected to this forced exhaust unit one end away from this exhaust outlet, and this blast pipe comprises vertical tube and is arranged at the seal of this vertical tube lower end, and the end portion of this vertical tube is used for the waste residue that splendid attire is discharged with gas.
Further, this debinding furnace also comprises blast pipe, this blast pipe comprises vertical tube and is connected to the igniter of this riser upper end, and this igniter comprises the multiple nozzles that can jet out flames arranged around this riser upper end, to light the imflammable gas of discharging from the upper end of this vertical tube.
Further, this debinding furnace also comprises the gas concentration detector be installed in this body of heater and the control module be connected with this gas concentration detector, this gas concentration detector is for detecting the concentration value producing fuel gas in skimming processes in body of heater, and according to it, pre-conditioned and gas concentration detector testing result sends control instruction to this control module.
Catalysis degreasing stove of the present utility model, by arranging a forced exhaust unit in the exhaust ports of body of heater, in skimming processes, gas in body of heater is forced to discharge, prevent the combustable gas concentration of debinding furnace in skimming processes from raising and effectively preventing tempering detonation, meanwhile, exhaust gas in body of heater of forced exhaust unit has swabbing action, improves the efficiency of body of heater being carried out to flushing process.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the utility model debinding furnace.
Fig. 2 is for the debinding furnace shown in Fig. 1 is along the sectional view of II-II line.
Fig. 3 is the generalized section of the forced exhaust unit of an embodiment shown in Fig. 2.
Fig. 4 is the generalized section of the forced exhaust unit of another embodiment shown in Fig. 2.
The other direction generalized section that Fig. 5 is the forced exhaust unit shown in Fig. 4.
Main element symbol description
| Catalysis degreasing stove | 100 |
| Body of heater | 10 |
| Fire door | 11 |
| Air inlet | 12 |
| Inlet duct | 120 |
| Nitrogen storage device | 121 |
| Flow valve | 123 |
| Pipeline | 122、13 |
| Preheating device | 124 |
| Nitric acid storage device | 131 |
| Pump | 132 |
| Exhaust outlet | 14 |
| Tube connector | 141 |
| Blast pipe | 142 |
| Vertical tube | 1421 |
| Transverse tube | 1422 |
| Seal | 143 |
| Igniter | 144 |
| Nozzle | 1441 |
| Forced exhaust unit | 15、16 |
| Housing | 150、160 |
| Suction muffler | 151、161 |
| Mixed flow chamber | 152、162 |
| Inlet chamber | 153、163 |
| Interface | 154、164 |
| Air inlet duct | 1531 |
| Air channel | 1532 |
| Air discharge duct | 1533 |
| Inlet channel | 1631 |
| Annular chamber | 1632 |
| Jet flow groove | 1633 |
| Air inlet pipe | 17 |
| Draught damper | 171 |
| Heating component | 20 |
| Calandria | 21 |
| Heat insulation material | 22 |
| Air-blast device | 30 |
| Motor | 31 |
| Impeller | 32 |
| Main shaft | 33 |
| Heat-conducting medium | 34 |
| Bin | 40 |
| Holding part | 41 |
| Diversion division | 42 |
| Charging tray | 411 |
| Through hole | 4111 |
| Contraction mouth | 421 |
| Temperature detector | 50 |
| Gas concentration detector | 60 |
| Become parison | 200 |
Following detailed description of the invention will further illustrate the utility model in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1-2, the catalysis degreasing stove 100 of the utility model one embodiment, it comprises body of heater 10, heating component 20, air-blast device 30, bin 40, the control module (not shown) that is installed in temperature detector 50 in body of heater 10 and gas concentration detector 60 and controls catalysis degreasing stove 100 associated operating condition and controling parameters.
Cylindrically, its side is provided with fire door 11 to body of heater 10, to pick and place into parison 200 to body of heater 10.In present embodiment, fire door 11 is made up of double-decker, heating component 20 is provided with in fire door 11, fire door 11 is provided with silica gel sealing door limit, side body of heater 10 being positioned at fire door 11 is provided with opening and is provided with steel flange at edge of opening, when closing fire door 11, the silica gel sealing door limit of fire door 11 is close on steel flange, to reach sealing and heat insulation function.
Body of heater 10 is provided with air inlet 12 away from fire door 11 side, and air inlet 12 place is connected with inlet duct 120.Inlet duct 120 comprises nitrogen storage device 121, the pipeline 122 be connected with nitrogen storage device 121 by air inlet 12, control and detects flow valve 123 and the preheating device 124 of nitrogen flow.In present embodiment, store liquid nitrogen in nitrogen storage device 121, liquid nitrogen is by pipeline 122 and enter in body of heater 10 after preheating device 124 preheating again.
Body of heater 10 is also provided with pipeline 13 away from fire door 11 side, pipeline 13 one end is connected with a nitric acid storage device 131, the other end stretches in bin 40 through body of heater 10 and bin 40, pipeline 13 is provided with pump 132, nitric acid in nitric acid storage device 131 is passed in bin 40 by pump 132, and catalysis is positioned over binding agent in the one-tenth parison 200 in body of heater 10 to make into parison 200 degreasing.
See also Fig. 3, contiguous fire door 11 one end, top of body of heater 10 is provided with exhaust outlet 14, and exhaust outlet 14 place is connected with forced exhaust unit 15, and the gas in body of heater 10 can be forced to discharge by forced exhaust unit 15.In present embodiment, exhaust ports connects a tube connector 141, and it can be bend pipe, and forced exhaust unit 15 is communicated with exhaust outlet 14 by tube connector 141.Forced exhaust unit 15 is also connected with a blast pipe 142 away from exhaust outlet 14 one end, and blast pipe 142 comprises vertical tube 1421 and transverse tube 1422, and transverse tube 1422 two ends are connected with forced exhaust unit 15 and vertical tube 1421 respectively.Be appreciated that in other embodiments, transverse tube 1422 can not had, directly vertical tube 1421 is connected with forced exhaust unit 15.
Forced exhaust unit 15 comprises housing 150, offers the suction muffler 151 and mixed flow chamber 152 that are interconnected in housing 150.Suction muffler 151 is connected with tube connector 141 away from one end, mixed flow chamber 152, and mixed flow chamber 152 is connected with transverse tube 1422 away from suction muffler 151 one end.The inlet chamber 153 be communicated with mixed flow chamber 152 and the interface 154 be communicated with inlet chamber 153 is also offered in housing 150.Inlet chamber 153 is a cannelure, and it comprises the air inlet duct 1531, air channel 1532 and the air discharge duct 1533 that are connected successively.Wherein, air inlet duct 1531 is communicated with interface 154, and the width of air channel 1532 is narrower, and air discharge duct 1533 is communicated with mixed flow chamber 152 and forms angle with its central shaft line.
The interface 154 of forced exhaust unit 15 is plugged with the air inlet pipe 17 can leading to Compressed Gas.Compressed Gas can pass into air inlet duct 1531 from air inlet pipe 17, sprays into air discharge duct 1533 via narrower air channel 1532, and flows into mixed flow chamber 152 and form high velocity air.High velocity air, under the effect at inclination angle, forms negative pressuren zone in mixed flow chamber 152.Through tube connector 141 and suction muffler 151 under the effect of the negative pressuren zone in mixed flow chamber 152 of the gas in body of heater 10, be drawn into after mixed flow chamber 152 mixes with high velocity air, enter blast pipe 142 from mixed flow chamber 152 and discharge.The compressed gas scale of construction that forced exhaust unit 15 passes into, should make to discharge gas flow in body of heater 10 from forced exhaust unit 15 roughly the same with the gas flow passed in body of heater 10, with prevent forced exhaust unit 15 force the gas flow of discharging in body of heater 10 compare the gas flow passed in body of heater 10 larger time, body of heater 10 inside forms negative pressure, and then affects into the quality of parison 200 degreasing.
Air inlet pipe 17 is also provided with draught damper 171, for the flow controlling and detect Compressed Gas.Can judge that whether the gas flow that forced exhaust unit 15 is forced to discharge in body of heater 10 is roughly the same with the gas flow passed in body of heater 10 by comparing draught damper 171 and the testing result of flow valve 123, draught damper 171 should remain in a ratio range with the ratio of the testing result of flow valve 123, and then avoids body of heater 10 inside to produce negative pressure.This ratio range is determined by the exhaust performance of this forced exhaust unit 15.
The lower end of vertical tube 1421 is provided with a seal 143, it can be a valve, the waste residue of discharging with gas is discharged from exhaust outlet 14 and is entered vertical tube 1421 through tube connector 141, forced exhaust unit 15 and transverse tube 1422, and being deposited on the bottom of vertical tube 1421 under gravity, the upper end of vertical tube 1421 is connected with igniter 144.In present embodiment, igniter 144 is provided with multiple nozzle 1441 that can jet out flames around vertical tube 1421 upper end, be conducive to the full combustion of gas of will discharge from exhaust outlet 14, the waste residue that burning produces also can drop to the bottom of vertical tube 1421, regularly can open seal 143 to be removed, effectively prevent waste residue from falling to melt down in body 10.
Be appreciated that exhaust outlet 14 is not limited to the top being arranged on body of heater 10 in present embodiment, also can be arranged on the side of body of heater 10, the position of exhaust outlet 14 should be arranged according to actual requirement.
Heating component 20 comprises for body of heater 10 provides the calandria 21 of heat and the heat insulation material 22 of parcel calandria 21 and body of heater 10.The lateral wall that calandria 21 is close to body of heater 10 is arranged, and heats for body of heater 10, and the temperature be beneficial in body of heater 10 controls.In present embodiment, calandria 21 has double-sided metal shell, and inside is provided with heater strip.The periphery of body of heater 10 and the two side ends of connection periphery thereof are all arranged at intervals with multiple calandria 21, and the calandria 21 that the periphery of body of heater 10 adopts is tubular calandria, and the calandria 21 that two side ends adopts is tabular calandria.Heat insulation material 22 for the heat that prevents calandria 21 and produce on the impact of other part.
Be appreciated that the mode heated body of heater 10 is not limited to use inner calandria 21 pairs of bodies of heater 10 being provided with heater strip to heat in present embodiment.
Air-blast device 30 comprises motor 31, impeller 32 and connects the main shaft 33 of motor 31 and impeller 32.Motor 31 is installed in the outside of body of heater 10, and impeller 32 is installed in the inside of body of heater 10, and is adjacent to bin 40, and motor 31 is connected with impeller 32 through body of heater 10 by main shaft 33.In present embodiment, air-blast device 30 produces a kind of horizontal mixed airflow, promotes gas flowing in body of heater 10, the temperature in body of heater 10 is distributed more equably.
In present embodiment, input in body of heater 10 after the pipeline 122 of liquid nitrogen through being equiped with flow valve 123 of nitrogen storage device 121 output inputs preheating device 124 preheating, flow valve 123 is for the flow of detection and control nitrogen, another main shaft 33 cooled by being provided with a lateral (mark) on pipeline 122 and utilizing the heat of main shaft 33 to the liquid nitrogen preheating of lateral, this lateral to extend near main shaft and with a heat-conducting medium 34 can be set therebetween.
Bin 40 is fixed in body of heater 10, the diversion division 42 that bin 40 comprises holding part 41 and is connected with holding part 41.Holding part 41 is a square frame, is shelved with dismountable multiple charging tray 411 in holding part 41, and charging tray 411 is for being placed to parison 200.Charging tray 411 offers and promotes gas flowing and heat conducting through hole 4111, in present embodiment, in matrix, arrangement is covered with in charging tray 411 through hole 4111.Diversion division 42 is in contraction-like, and diversion division 42 offers a contraction mouth 421 away from holding part 41 one end, and contraction mouth 421 is in close proximity to impeller 32, to promote the flowing of the gas in bin 40, utilizes into the degreasing of parison 200.In present embodiment, diversion division 42 extends to holding part 41 from contraction mouth 421.Pipeline 13 one end stretches in holding part 41 through body of heater 10 and bin 40, reacts fast with the binding agent made in parison 200.
Temperature detector 50 is fixed in body of heater 10, for detecting the temperature in body of heater 10.Temperature detector 50 is also connected with control module, and by the Temperature displaying in the body of heater 10 detected in controlling on module.In present embodiment, the quantity of temperature detector 50 is two, and two temperature detectors 50 are distributed in the two ends of body of heater 10 side, to detect the temperature in body of heater 10 accurately.In other embodiments, the quantity of temperature detector 50 is not limited to two, can arrange according to actual needs.
Gas concentration detector 60 stretches in the holding part 41 of bin 40, for detecting the associated gas concentration that in body of heater 10, degreasing generates, as fuel gas such as formaldehyde, methane, propylene, ethene.Gas concentration detector 60 is connected with control module.In present embodiment, gas concentration detector 60 comprises platinum filament, and when fuel gas contacts with the platinum filament of gas concentration detector 60, oxidation reaction occurs on platinum filament surface, the resistivity of heat effects platinum filament produced, and then make to control module and combustable gas concentration in body of heater 10 detected.
Can understand, gas concentration detector 60 detects combustable gas concentration and is not limited to use the platinum filament in present embodiment.
In present embodiment, control module and comprise controller (not shown) and control panel (not shown), controller is connected (not shown) with draught damper 171, flow valve 123, pump 132, calandria 21 and motor 31, and can control the duty of draught damper 171, flow valve 123, pump 132, calandria 21 and motor 31.Control panel can arrange parameter during 100 degreasing of catalysis degreasing stove, specifically include but not limited to a default temperature extremes, a gas concentration limiting value or scope and a ratio range, also can the testing result of displays temperature detector 50, gas concentration detector 60 and flow valve 123 and the ratio of draught damper 171 detected value.Control module record corresponding pre-conditioned, specifically include but not limited to temperature extremes, gas concentration limiting value or the scope preset and ratio range.When the gas concentration result that gas concentration detector 60 detects reaches default gas concentration limiting value or scope; and/or when in body of heater 10, temperature reaches default temperature extremes; and/or flow valve 123 is when exceeding this ratio range with the ratio of draught damper 171 detected value; control module driving governor and send control instruction, control instruction can be alarm command or halt instruction.
It is the profile of the forced exhaust unit 16 of another embodiment of the utility model please refer to Fig. 4-5, Fig. 4-5.Forced exhaust unit 16 comprises housing 160, offers the suction muffler 161 and mixed flow chamber 162 that are interconnected in housing 160.Suction muffler 161 is connected with tube connector 141 away from one end, mixed flow chamber 162, and mixed flow chamber 162 is connected with transverse tube 1422 away from suction muffler 161 one end.The inlet chamber 163 be communicated with mixed flow chamber 162 and the interface 164 be communicated with inlet chamber 163 is also offered in housing 160.Inlet chamber 163 comprises the inlet channel 1631, annular chamber 1632 and the some jet flow groove 1633 that are connected successively.Wherein, inlet channel 1631 is narrower and be communicated with interface 164, annular chamber 1632 shape ringwise, it is communicated with mixed flow chamber 162 by some jet flow groove 1633, each jet flow groove 1633 forms jet angle with mixed flow chamber 162 central axis, and the shape of jet flow groove 1633 can adopt the design of multiple nozzle.Compressed Gas can flow into annular chamber 1632 from air inlet pipe 17 through narrower inlet channel 1631, and sprays into mixed flow chamber 162 by jet flow groove 1633 and form High Rotation Speed air-flow.High Rotation Speed air-flow, under the effect of jet angle, forms the active negative pressuren zone at edge and the passive negative pressuren zone at middle part in mixed flow chamber 162.Gas in body of heater 10 in mixed flow chamber 162 initiatively and under the effect of passive negative pressuren zone through tube connector 141 and suction muffler 161, be drawn into after mixed flow chamber 162 mixes with High Rotation Speed air-flow, enter blast pipe 142 from mixed flow chamber 162 and discharge.Annular chamber 1632 is communicated with mixed flow chamber 162 by some jet flow groove 1633 by the forced exhaust unit 16 of the present embodiment, utilizes the designs of nozzles of jet flow groove 1633, can reduce the compressed gas scale of construction passed into.
Catalysis degreasing stove 100 of the present utility model in use, first fire door 11 is opened, one-tenth parison 200 is placed on charging tray 411, close parison 200 degreasing is also arranged to by fire door 11 parameter by the control panel controlling module, preset relevant parameter and condition, specifically include but not limited to a temperature extremes, a gas concentration limiting value or scope and a ratio range, controlling flow valve 123 again passes in body of heater 10 by the nitrogen through preheating device 124, control draught damper 171 and Compressed Gas is passed into forced exhaust unit 15 or 16 to be forced to extract exhaust outlet 14 out by gas in body of heater 10 through air inlet pipe 17, meanwhile, controller controls calandria 21 pairs of bodies of heater 10 and heats, and starts air-blast device 30 and igniter 144, when temperature detector 50 detects that in body of heater 10, temperature reaches a temperature value (being generally 120 degrees Celsius), and gas concentration detector 60 is not when fuel gas being detected, controller controls flow valve 123 and strengthens nitrogen intake, and control the intake that draught damper 171 strengthens Compressed Gas and make flow valve 123 remain on this ratio range with the ratio of draught damper 171 detected value, start pump 132 to start to pass into nitric acid in body of heater 10, because nitric acid has volatile with the characteristic such as boiling point is low, it is gaseous state that nitric acid enters in body of heater 10, the binding agent gasification made in parison 200 is decomposed, produce fuel gas, forced exhaust unit 15 or 16 extracts fuel gas out exhaust outlet 14 in body of heater 10, through tube connector 141 suction mixed flow chamber 152 or 162 and after mixing with high velocity air, enter after vertical tube 1421 through transverse tube 1422, by igniter 144, burning process is carried out to it, the waste residue of discharging with fuel gas can drop to the bottom of vertical tube 1421, in skimming processes, temperature detector 50 is for detecting the temperature in body of heater 10, and when in body of heater 10, temperature reaches default temperature extremes, controller impels alarm unit to give the alarm to remind the too high need of temperature in operating personnel's body of heater 10 to process in time, in gas concentration detector 60 pairs of skimming processes, in body of heater 10, gas concentration detects, when the gas concentration detected reaches default gas concentration limiting value or scope, controller impels alarm unit to give the alarm to remind the too high need of gas concentration in operating personnel's body of heater 10 to process in time, by gas concentration detector 60, controller detects that the mutation analysis of gas concentration in body of heater 10 judges into the degreasing degree of parison 200, to determine whether degreasing completes, after degreasing completes, rinse in body of heater 10, forced exhaust unit 15 or 16 continues to be extracted out from exhaust outlet 14 by gas in body of heater 10, to improve the efficiency of flushing process.
Catalysis degreasing stove 100 of the present utility model, by exhaust outlet 14 place at body of heater 10, one forced exhaust unit 15 or 16 is set, in skimming processes, gas in body of heater 10 is forced to discharge, prevent the combustable gas concentration of catalysis degreasing stove 100 in skimming processes from raising and effectively preventing tempering detonation, meanwhile, exhaust gas in body of heater of forced exhaust unit has swabbing action, and improves the efficiency of body of heater 10 being carried out to flushing process.
Can understand, the gas that air inlet 12 passes into is not limited to the nitrogen in present embodiment, can also be other protective gas.
Can understand, the binding agent be catalyzed in parison 200 is not limited to the nitric acid used in present embodiment, the catalysis material of binding agent catalysis that can also to be other will become in parison 200, such as oxalic acid.
Can understand, the control instruction in present embodiment includes but not limited to give the alarm, shut down process etc.
In addition, those skilled in the art also can do other change in the utility model spirit, and certainly, these changes done according to the utility model spirit, all should be included in the utility model scope required for protection.
Claims (10)
1. a debinding furnace; comprise body of heater, heating component, bin; this bin is used for being placed to parison; this body of heater is also provided with air inlet, pipeline and exhaust outlet; this air inlet is used for input protection gas; this pipeline is for inputting catalysis material to carry out degreasing to this one-tenth parison; it is characterized in that: this debinding furnace also comprises the forced exhaust unit being connected to this exhaust outlet; this forced exhaust unit is used for passing into Compressed Gas; can form high velocity air after this Compressed Gas enters this forced exhaust unit, this high velocity air impels the gas in this body of heater to discharge.
2. debinding furnace as claimed in claim 1, it is characterized in that: this forced exhaust unit comprises housing, offer in this housing be interconnected suction muffler, mixed flow chamber and the inlet chamber that is communicated with this mixed flow chamber, this suction muffler is connected with this exhaust outlet, this Compressed Gas passes into this mixed flow chamber through this inlet chamber and forms high velocity air, make to produce negative pressure in this mixed flow chamber, and then the gas in body of heater is discharged.
3. debinding furnace as claimed in claim 2, it is characterized in that: this inlet chamber comprises the inlet channel, annular chamber and the some jet flow groove that are connected successively, each jet flow groove is communicated with this mixed flow chamber and forms jet angle with its central shaft line, this Compressed Gas enters this annular chamber through this inlet channel, and then sprays into this mixed flow chamber formation high velocity air from this jet flow groove.
4. debinding furnace as claimed in claim 2, it is characterized in that: this inlet chamber is a cannelure, it comprises the air inlet duct, air channel and the air discharge duct that are connected successively, this air discharge duct is communicated with this mixed flow groove and has angle with its central shaft is linear, and this Compressed Gas enters this mixed flow chamber through this air inlet duct, air channel and air discharge duct and forms high velocity air.
5. debinding furnace as claimed in claim 2, it is characterized in that: this debinding furnace also comprises an air inlet pipe, also offer the interface be communicated with this inlet chamber in this housing, this air inlet pipe is plugged in this interface and enters this inlet chamber to make this Compressed Gas from this air inlet pipe.
6. debinding furnace as claimed in claim 5; it is characterized in that: this debinding furnace also comprises the flow valve being connected to this air inlet place; this flow valve is for controlling and detecting the gas flow passing into protective gas; this air inlet pipe is provided with draught damper; this draught damper is used for the flow of this Compressed Gas of detection and control, and this draught damper controls the flow of this Compressed Gas to make the gas flow in this body of heater of discharge suitable with the gas flow entered in this body of heater.
7. debinding furnace as claimed in claim 1, is characterized in that: this debinding furnace also comprises a tube connector, and these tube connector two ends connect this exhaust ports and this forced exhaust unit respectively.
8. debinding furnace as claimed in claim 1, it is characterized in that: this debinding furnace also comprises blast pipe, this blast pipe is connected to this forced exhaust unit one end away from this exhaust outlet, this blast pipe comprises vertical tube and is arranged at the seal of this vertical tube lower end, and the end portion of this vertical tube is used for the waste residue that splendid attire is discharged with gas.
9. debinding furnace as claimed in claim 1, it is characterized in that: this debinding furnace also comprises blast pipe, this blast pipe comprises vertical tube and is connected to the igniter of this riser upper end, this igniter comprises the multiple nozzles that can jet out flames arranged around this riser upper end, to light the imflammable gas of discharging from the upper end of this vertical tube.
10. debinding furnace as claimed in claim 1, it is characterized in that: this debinding furnace also comprises the gas concentration detector be installed in this body of heater and the control module be connected with this gas concentration detector, this gas concentration detector is for detecting the concentration value producing fuel gas in skimming processes in body of heater, and according to it, pre-conditioned and gas concentration detector testing result sends control instruction to this control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766859.9U CN204321195U (en) | 2014-12-09 | 2014-12-09 | A kind of debinding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766859.9U CN204321195U (en) | 2014-12-09 | 2014-12-09 | A kind of debinding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321195U true CN204321195U (en) | 2015-05-13 |
Family
ID=53157598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420766859.9U Expired - Fee Related CN204321195U (en) | 2014-12-09 | 2014-12-09 | A kind of debinding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225486A (en) * | 2016-09-21 | 2016-12-14 | 深圳市星特烁科技有限公司 | Oxalic acid conveyer device |
| CN106270506A (en) * | 2016-09-21 | 2017-01-04 | 深圳市星特烁科技有限公司 | A kind of catalysis degreasing stove using oxalic acid as catalyst and catalysis degreasing method |
-
2014
- 2014-12-09 CN CN201420766859.9U patent/CN204321195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225486A (en) * | 2016-09-21 | 2016-12-14 | 深圳市星特烁科技有限公司 | Oxalic acid conveyer device |
| CN106270506A (en) * | 2016-09-21 | 2017-01-04 | 深圳市星特烁科技有限公司 | A kind of catalysis degreasing stove using oxalic acid as catalyst and catalysis degreasing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105562695A (en) | Degreasing furnace | |
| CN204075221U (en) | A kind of debinding furnace | |
| CN204321195U (en) | A kind of debinding furnace | |
| CN104976890A (en) | Mesh belt type tempering furnace | |
| CN106439926A (en) | Secondary air supply combustion-supporting device for heating furnace | |
| CN103924044B (en) | Off-gas recovery combustion flashback stove | |
| CN206504347U (en) | Centralization catalysis burning all-in-one | |
| CN106679174B (en) | High-temperature hot-air furnace | |
| US7241139B2 (en) | Casting sand heating apparatus | |
| CN204987897U (en) | Low -grade tail gas waste heat utilization feed bin of small -scale | |
| CN206094169U (en) | Combustion -supporting device of secondary air supply of heating stove | |
| CN103898294A (en) | Anticorrosive vacuumizer pollution-discharge spraying-purification operation-observing/monitoring vacuum furnace | |
| CN203936371U (en) | Coal gas of converter heat accumulating type vacuum drying oven barbecue device | |
| CN104197733B (en) | Regenerative cycles device in Gas heating furnace high-temperature burns carbon distribution device and technique | |
| CN206257669U (en) | Energy-saving anti-freezing of a furnace natural gas combustion nozzle | |
| CN204494378U (en) | The hot cigarette of large burner hearth oxygen-enriched combustion-supporting reclaims energy saver | |
| CN202709716U (en) | Air curtain device of sintering furnace | |
| CN2849570Y (en) | Lining type air heater | |
| CN204328995U (en) | A kind of energy-saving, environmental protection boiler | |
| CN205825709U (en) | A kind of industrial furnace being rapidly heated | |
| CN103740910A (en) | Anticorrosive vacuumizer pollution-discharge liquid-purification monitoring-operation vacuum furnace | |
| CN102756448B (en) | Rotational molding machine thermojet heating system | |
| CN103740908A (en) | Anticorrosive vacuumizer pollution-discharge liquid-purification observation-monitoring-operation vacuum furnace | |
| CN205258531U (en) | Continuous type almag heat treatment furnace | |
| CN201092568Y (en) | Cracking furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |