CN106091689B - A kind of vacuum incineration furnace apparatus and its working method - Google Patents
A kind of vacuum incineration furnace apparatus and its working method Download PDFInfo
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- CN106091689B CN106091689B CN201610712461.0A CN201610712461A CN106091689B CN 106091689 B CN106091689 B CN 106091689B CN 201610712461 A CN201610712461 A CN 201610712461A CN 106091689 B CN106091689 B CN 106091689B
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- 238000000034 method Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000007921 spray Substances 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 238000005485 electric heating Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 23
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 239000010935 stainless steel Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003776 cleavage reaction Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 230000007017 scission Effects 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids or removable covers
- F27D1/1808—Removable covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D21/04—Arrangement of indicators or alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids or removable covers
- F27D1/1808—Removable covers
- F27D2001/1825—Means for moving the cover
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of vacuum incineration furnaces, for JZK-C type well vacuum incinerator, including vacuum hearth, opening and closing lid device, electric heating tube, waste collection systems, vacuum pipe material-blockage preventing device, water spray system, water-ring vacuum pump, preventing return water device, moisture trap and control system, water route, gas circuit etc., wherein, the horizontal placement of vacuum hearth, fire door is upward, it is made of bell and the operating room for holding cleaned part, waste collection systems mainly include garbage collection tank, garbage collection tank is installed on lower furnace portion, a funnel-like tray is equipped in the intracavity bottom of vacuum hearth, pallet discharge port is located at right above garbage collection tank.Compared with prior art, compact-sized, good airproof performance, working space is big, opens and closes bell using double oil cylinders, angle of uncapping is greater than 90 °, guarantees the stability of opening and closing lid；Garbage collection is convenient, and the occurrence of efficiently burned and cleaned, and can effectively prevent pouring, high degree of automation, temperature control is accurate, improves working efficiency, alleviates labor intensity.
Description
Technical field
The present invention relates to vacuum incineration fields, and in particular to one kind is suitable for the cleaning super-huge component spinneret of chemical fibre industry
A kind of vacuum incineration furnace apparatus of the chemical fibre polymer adhered on the components such as plate, distribution plate and burning work is carried out using the device
The method of work.
Background technique
Vacuum incineration furnace is suitable for terylene, polyamide fibre, polypropylene fibre, the component of nonwoven production, the spinneret, mistake of chemical fibre industry
The cleaning treatments such as filter core, the die head cleaning for being also applied for plastics, cable, resin industry are used.Vacuum incineration furnace utilizes macromolecule
Polymer is fusible at 300 DEG C or so, is higher than 300 DEG C of isolation air cleavable coking, is having a small amount of air simultaneously higher than 400 DEG C
Have in the environment of certain vacuum degree can complete oxidation characteristic, first by the workpiece for being stained with macromolecule dirt be heated to 300 DEG C (according to
Technique requires to draft), make to trickle after a fairly large number of high molecular polymer fusing into the collection vessel of lower furnace portion on workpiece,
Then furnace temperature is raised to 400-500 DEG C again, opens simultaneously vacuum pump, and be passed through a small amount of fresh air, fill remaining polymer
Divide oxidation, the carbon dioxide of generation is then discharged out outside furnace.In the prior art, such as the Chinese patent of Patent No. 96218124.2
In disclosed vacuum cleaning oven technical solution, contain vertical furnace chamber, furnace body, bell, heating element, garbage collection tank, vertical heater
Thorax is connected with garbage collection tank.Negative pressure of vacuum, expanded by heating are still suffered from while bearing 500 DEG C or more high temperature for burner hearth
After cause fire door to be deformed, the vacuum degree in burner hearth not can fully ensure that.And the Chinese patent of Publication No. CN2735270Y
A kind of high vacuum degree rectangular vacuum cracking washing furnace, vertical furnace chamber subsection setup are disclosed, furnace body and bell form and bear to bear
The seal casinghousing of pressure, furthermore there are flexible gap, the wound of interior plate and the top board bolts of furnace body shell to connect between interior plate
It connects, reduces fire door deformation, so that vacuum degree is guaranteed.However, the bell opening device of current vacuum incineration furnace compares
Cumbersome, there are burner hearth opening and closing is inconvenient；Furthermore it collects waste material to be not thorough, vacuum pipe is easy blocking, and vacuum pump is easy quilt
The problems such as pollution, the water in vacuum line are easy to flow backwards in furnace, temperature control inaccuracy, automation control is insufficient.
Summary of the invention
It is an object of the invention to solve above-mentioned technical problem, provide a kind of easy to use, high-efficient, pollution less, precision
High vacuum incineration furnace apparatus and the method that burning cleaning is carried out using the device.
To achieve the goals above, the technical scheme is that
A kind of vacuum incineration furnace comprising vacuum hearth, opening and closing lid device, electric heater, waste collection systems, vacuum
Pipeline material-blockage preventing device, water spray system, water-ring vacuum pump, preventing return water device, moisture trap and control system, water
Road system, air-channel system, wherein the horizontal placement of the vacuum hearth, fire door is upward, and the vacuum hearth is by bell and Sheng
Operating room's composition of cleaned part is put, the waste collection systems mainly include garbage collection tank, and garbage collection tank is installed on
The vacuum hearth lower part is equipped with a funnel-like tray in the intracavity bottom of vacuum hearth, and the discharge port of the pallet is located at useless
Expect right above collecting tank, outlet port, oxidation air intake, heater installing port is equipped in the vacuum hearth, in institute
It states vacuum hearth bottom and is equipped with the work-piece shelf for placing cleaning part, work-piece shelf is perforated plate construction, and garbage collection tank is horizontal
Structure inside has the semi-circular drawer for containing waste material.
Further, the also settable fire door flange outside fire door fills thermal insulation material insulation between burner hearth and outer barrel,
Insulation layer thickness is not less than 200mm.
Further, the opening and closing lid device includes hydraulic power unit, fluid pressure line, oil cylinder, the hydraulic power unit,
Fluid pressure line and oil cylinder constitute hydraulic circuit system, are opened and closed bell by hydraulic system；1 oil is respectively provided in fire door left and right side
Cylinder；Bell is connect with burner hearth by uncapping hinge, sealing ring is used at bell and fire door closure.
Further, the electric heater of the vacuum incineration furnace is made of several U-typed stainless steel electric heating tubes, is added
Hot device is mounted on the left and right sides in burner hearth, and leading-out terminal passes through insulating layer by heater for hearth installing port and stretches out outside furnace, and furnace is externally provided with
Terminal box, heater are protected by more stainless steel strips as anticollision barrier.
Further, the pipeline blocking-preventing device for vacuum is mounted on vacuum lead inlet, by pipeline, stainless steel electricity
Heating tube, screen, deflector and intake valve composition.
Further, the water spray system includes sprayed tank, has water spray and filter device, furnace inner powder in sprayed tank
The ash content that dirt generates after the burning of vacuum pipe material-blockage preventing device is through the stainless steel Pall ring spray filtering in spray cleaning device
Afterwards, then arrive the vacuum pump.
Further, the preventing return water device: installing normal-closed electromagnetic valve and manual intake valve on spray fills, when
When vacuum pump is opened, the solenoid valve and vacuum pump simultaneously it is electric, solenoid valve is in closed state, when vacuum pump closing, the electricity
Magnet valve while power loss, and it is in the open state, it is at this time negative pressure in furnace, the outer air of furnace is quickly entered in furnace by the valve, makes furnace
Internal and external pressure balance.
Further, water tank is provided on vacuum incineration road, water tank provides work water source for vacuum drying oven, is supplying water
Pipeline to water-ring vacuum pump, water spray system spray tank body between be equipped with valve, water supply pipe be equipped with Y-shaped filtering
Device, water-ring vacuum pump are also connected with moisture trap, separate water, gas by moisture trap.
Further, it is additionally provided with pressure controller and flowmeter in the lower furnace portion, passes through controller and flowmeter
To in burner hearth pressure and gas flow detect；The hydraulic circuit system, useless of controller and flowmeter, opening and closing lid device
Expect collection system, electric heater, vacuum pipe material-blockage preventing device, water spray system, water-ring vacuum pump, preventing return water device,
Moisture trap, water circuit system, air-channel system are connected with power control cabinet controlling system, control cabinet wiring use under into it is lower go out
Line, control cabinet bottom are equipped with carbon steel mounting seat, and power cable, the control cable of control cabinet to furnace body need to lay wire casing protection,
Electrical component protection panels need to only be installed at main circuit connection in control cabinet, the low alarm of hydraulic pressure, overtemperature alarm, low vacuum alarm
It is alarm lamp mode, does not need sound, control system contains three sets of high-precision digital display type programmable temperature control instrument, can start automatically
The optimised process program parameter of setting carries out PID and adjusts temperature control, wherein a set of instrument program temperature control, a set of instrument interlock protection,
Another set of instrument individually controls pipeline blocking-preventing device for vacuum and chain with whole system, has following function:
(1) overtemperature alarm, and automatically cut off heating power supply；
(2) break and occasionally alarm, and automatically cut off heating power supply；
(3) circuit water alarm, and automatically cut off heating power supply；
(4) vacuum pump does not run or when vacuum degree lower bound position, equipment alarm, while cutting off heating power supply, is protected.
Using preceding claim vacuum incineration furnace carry out vacuum incineration-cleaning method, it is characterised in that comprising with
Lower step:
1, cleaned part is put into furnace, bell is shut；
2, according to the characteristic for being cleaned part, programmable temperature control instrument is set by following temperature control curve, opens heater switch, equipment
Process into automatic operating state, the heating and cooling of burning cleaning is as follows:
A, the temperature rise period: it is 270-350 DEG C that room temperature, which is appreciated to T1, T1, and temperature-rise period continues 40-80min；
B, melt stage: opening vacuum pump, automatically open inlet water solenoid valve, maintains 2.5-3.5 hours in T1 temperature；
C, D cleavage stages: T2 temperature is wherein risen to by T1 C sections, T2 temperature is 400-500 DEG C, heating-up time 20-
40min, D sections of maintenance T2 temperature, holding time is 5-6 hours (2-3 containing oxidation stage hours)；
E, oxidation stage: being oxidation stage in D sections of second half sections, this stage all opens intake solenoid valve when starting, and maintains
T2 temperature 2-3 hours, so far cleaning procedure all terminated；
F, the natural cooling stage.
Compared with prior art, the present invention has the following technical effect that compact-sized, good airproof performance, working space are big；It adopts
Bell is opened and closed with double oil cylinders, angle of uncapping is greater than 90 °, guarantees the stability of opening and closing lid, alleviate labor intensity；Garbage collection
It is convenient, the occurrence of efficiently burned and cleaned, and can effectively prevent pouring, reduce the pollution of vacuum pump；Using control
System is operated, high degree of automation, be can be realized temperature control accurately, is improved working efficiency, alleviate labor intensity.
Detailed description of the invention
Fig. 1 is vacuum incineration furnace structure schematic diagram of the present invention.
Fig. 2 is vacuum incineration furnace section components structure sectional view of the present invention.
Fig. 3 is the vacuum cleaner part of vacuum incineration furnace of the present invention.
Fig. 4 burn-cleaning process figure using vacuum incineration furnace for the present invention.
Specific embodiment
The embodiment of invention is described in detail with reference to the accompanying drawing:
Referring to attached drawing 1-3, it to be JZK-C type well vacuum incinerator, including vacuum that the present invention relates to a kind of vacuum incineration furnaces
Burner hearth, opening and closing lid device 2, electric heater, waste collection systems, vacuum pipe material-blockage preventing device, water spray system 10, water ring
Formula vacuum pump 9, preventing return water device, moisture trap 11 and control system, water route, gas circuit etc., wherein vacuum hearth is horizontal
It places, fire door is upward, is made of bell and the operating room for holding cleaned part, waste collection systems mainly include garbage collection tank
15, garbage collection tank 15 is installed on lower furnace portion, is equipped with a funnel-like tray, pallet discharge port in the intracavity bottom of vacuum hearth
Right above garbage collection tank 15.Outlet port (vacuumizing entrance), oxidation air intake, heater are equipped in burner hearth
Installing port.The also settable fire door flange 3 outside fire door.Thermal insulation material insulation, thermal insulation material 6 are filled between burner hearth and outer barrel
It is preferred that aluminium silicate wool, insulation layer thickness is not less than 200mm；Material is heat-resistance stainless steel, such as SU304 stainless steel, furnace in burner hearth
Thorax outer barrel is carbon constructional quality steel, such as Q235B.For the ease of forming effective protection to material surface, vacuum incineration furnace
Frame material and outer barrel surface carry out paint processing.Vacuum incineration furnace may be provided on bracket, can also be by burner hearth
The outside setting support 12 of cylinder is supported.
Opening and closing lid device 2 includes hydraulic power unit 20, fluid pressure line 19,1,20 hydraulic power unit of oil cylinder, 19 and of fluid pressure line
Oil cylinder 1 constitutes hydraulic circuit system, is opened and closed bell by hydraulic system and alleviates labor intensity.For the stabilization for guaranteeing opening and closing lid
Property, bell is opened and closed using double oil cylinders, i.e., is respectively provided with 1 oil cylinder in fire door left and right side.Angle of uncapping is greater than 90 °, increases safety and inserts
Pin.Bell is connect with burner hearth by uncapping hinge 8, I uses sealing ring at bell and fire door closure, and carries out double containment shape
Formula, wherein outside is silicone rubber O-ring, inside is flexible graphite stuffing.
The electric heater of vacuum incineration furnace is made of 6 U-typed stainless steel electric heating tubes 4, and heater is mounted in burner hearth
The left and right sides, leading-out terminal pass through insulating layer by heater for hearth installing port and stretch out outside furnace, and furnace is externally provided with terminal box.Heater is by more
Root stainless steel strip is protected as anticollision barrier 5, avoids breaking heating tube when cleaned part disengaging burner hearth.Wherein tube material can
To select 1Cr18NiTi, Cr20Ni80 etc., 5-15kW/ root is may be selected in power bracket.
The work-piece shelf 14 for placing cleaning part is equipped in burner hearth bottom, work-piece shelf 14 is perforated plate construction, aperture Ф
6mm- Ф 10mm, the polymer convenient for melting on cleaning part are flowed into the garbage collection tank of equipment lower part.Garbage collection tank 15 is
Horizontal type structure inside has the semi-circular drawer for containing waste material, pulls out drawer, can easily outwell waste material, garbage collection tank quantity 4
Set.
Pipeline blocking-preventing device for vacuum: the device is mounted on vacuum lead inlet, by pipeline, stainless steel electric heating tube
13, screen, deflector and intake valve composition.When vacuumizing, generated after vacuum cracking in burner hearth with sticking dust through 600
DEG C temperature combustion generates ash content and gas, overcomes the blocking phenomenon of pipeline.
Water spray system 10: include sprayed tank, have water spray and filter device in sprayed tank.Dust is through vacuum pipe in furnace
The ash content generated after material-blockage preventing device burning is after the stainless steel Pall ring spray filtering in spray cleaning device, then arrives vacuum
Pump, does not constitute the pollution to vacuum pump, ensure that the normal use of water-ring vacuum pump.
Preventing return water device: normal-closed electromagnetic valve and manual intake valve are installed on spray fills.It, should when vacuum pump is opened
Solenoid valve and vacuum pump simultaneously it is electric, solenoid valve is in closed state.When vacuum pump is closed, the solenoid valve while power loss, and
It is in the open state, it is at this time negative pressure in furnace, the outer air of furnace is quickly entered in furnace by the valve, make furnace internal and external pressure balance, gram
It has taken because the aqueous reflux in furnace when negative pressure in vacuum pump pipeline is into the defects of furnace.Manual intake valve system normal-closed electromagnetic valve failure
Shi Shoudong is used.
Water tank 18 is provided on vacuum incineration road, water tank 18 provides work water source for vacuum drying oven, in water supply line
To water-ring vacuum pump 9, water spray system 10 spray tank body between be equipped with valve, water supply pipe be equipped with Y-shaped filter,
80 mesh of filtering accuracy, adjustable spray water flow size.Water-ring vacuum pump 9 is also connected with moisture trap 11, passes through gas
Separator 11 makes water, gas separation, reduces the environmental pollution in workshop.Pressure controller 17 and stream are additionally provided in lower furnace portion
Meter 16, by controller 17 and flowmeter 16 in burner hearth pressure and gas flow detect.Opening and closing lid device 2
Hydraulic circuit system, waste collection systems, electric heater, vacuum pipe material-blockage preventing device, water spray system 10, liquid-ring type vacuum
Pump 9, preventing return water device, moisture trap 11, water route, air-channel system are connected with power control cabinet 7 controlling system.Control cabinet
Into lower outlet under wiring use, control cabinet bottom is equipped with carbon steel mounting seat, power cable, the control cable of control cabinet to furnace body
Wire casing protection need to be laid, electrical component protection panels need to only be installed at main circuit connection in control cabinet, the low alarm of hydraulic pressure, overtemperature
Alarm, low vacuum alarm are alarm lamp mode, do not need sound.Control system contains three sets of high-precision digital display type programmable temperature controls
Instrument, the optimised process program parameter that can start setting automatically carries out PID and adjusts temperature control, wherein a set of instrument program temperature control, one
Instrument interlock protection is covered, another set of instrument individually controls pipeline blocking-preventing device for vacuum and chain with whole system.It includes
(1) overtemperature alarm, and automatically cut off heating power supply.
(2) break and occasionally alarm, and automatically cut off heating power supply.
(3) circuit water alarm, and automatically cut off heating power supply.
(4) vacuum pump does not run or when vacuum degree lower bound position, equipment alarm, while cutting off heating power supply, is protected.
Using this above-mentioned vacuum incineration furnace, vacuum incineration cleaning can be carried out, technical process such as:
1, cleaned part is put into furnace, bell is shut.
2, according to the characteristic for being cleaned part, programmable temperature control instrument is set by following temperature control curve, opens heater switch, equipment
Process into automatic operating state, the heating and cooling of burning cleaning is as follows:
A, the temperature rise period: it is 270-350 DEG C that room temperature, which is appreciated to T1, T1, and temperature-rise period continues 40min-80min.
B, melt stage: opening vacuum pump, automatically open inlet water solenoid valve, maintains 2.5-3.5 hours in T1 temperature.
C, D cleavage stages: the T2 stage is wherein risen to by T1 C sections, T2 temperature is 400-500 DEG C, heating-up time 20-
40min, D sections of maintenance T2 temperature, holding time is 5-6 hours (2-3 containing oxidation stage hours).
E, oxidation stage: being oxidation stage in D sections of second half sections, this stage all opens intake solenoid valve when starting, and maintains
T2 temperature 2-3 hours, so far cleaning procedure all terminated.
F, the natural cooling stage.
Embodiment 1
Using the vacuum incineration furnace in above embodiment, work chamber size 4000mm × 550mm × 450mm in burner hearth,
Maximum load 1500Kg in furnace, can be adjusted accurately, general power at 0-450 DEG C by 600 DEG C of job design maximum temperature: 54.1Kw,
Middle heating power 45Kw, water-ring vacuum pump power of motor 4.0Kw, Anti-blockage heating power 4.0Kw, opening and closing lid hydraulic power unit
Power 1.1Kw, vacuum degree: -0.065~-0.085MPa, bell opening angle: 92 °~95 °, temperature-controlled precision: ± 1 DEG C.
Embodiment 2
Vacuum incineration furnace in the present embodiment, vacuum degree: -0.065~-0.085MPa, water consumption :≤0.4m3/ h, electricity
Source: 380V, 50Hz, Three-phase five-wire, temperature-controlled precision: ± 0.5 DEG C, other are same as Example 1.
Embodiment 3
1, cleaned part is put into furnace, bell is shut, cleaning part material is terylene.
2, according to the characteristic for being cleaned part, programmable temperature control instrument is set by following temperature control curve, opens heater switch, equipment
Into automatic operating state, the heating of cleaning and the process of cooling are burned as shown in time-temperature curve in attached drawing 4:
A, the temperature rise period: room temperature~300 DEG C, 1 hour.
B, melt stage: 300 DEG C, 3 hours.
C, D cleavage stages: 300~450 DEG C, 5.5 hours (containing oxidation stage 2 hours).
E, oxidation stage: 450 DEG C, 2 hours, so far cleaning procedure all terminated.
F, the natural cooling stage.
Wherein after the A stage, vacuum pump is opened, automatically opens inlet water solenoid valve until E-stage terminates, E-stage starts
After automatically open intake solenoid valve.
The mark for meeting Q/320928 YHX-006-2013 " vacuum incineration furnace " is checked and accepted in the manufacture of the vacuum incineration furnace of the application
Standard, and the related heating furnace manufacturer's standard of country, the related electric utility manufacturer's standard of country.
The above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, the conventional improvements and modifications made, these improvements and modifications each fall within power of the present invention
Within the scope of benefit is claimed.
Claims (6)
1. a kind of vacuum incineration furnace comprising vacuum hearth, opening and closing lid device, electric heater, waste collection systems, vacuum tube
Road material-blockage preventing device, water spray system, water-ring vacuum pump, preventing return water device, moisture trap and control system, water route
System, air-channel system, which is characterized in that the horizontal placement of the vacuum hearth, fire door is upward, and fire door is additionally provided with outside fire door
Flange, fills thermal insulation material insulation between burner hearth and outer barrel, insulation layer thickness is not less than 200mm, the vacuum pipe
Material-blockage preventing device is mounted on the vacuum lead inlet of incinerator, by pipeline, stainless steel electric heating tube, screen, deflector and
Intake valve composition；The vacuum hearth is made of bell with the operating room for holding cleaned part, the waste collection systems
It mainly include garbage collection tank, garbage collection tank is installed on the vacuum hearth lower part, is equipped in the intracavity bottom of vacuum hearth
Multiple funnel-like trays, the discharge port of the pallet are located at right above garbage collection tank, and exhaust gas is equipped in the vacuum hearth and is arranged
Outlet, oxidation air intake, heater installing port, the work-piece shelf for placing cleaning part is equipped in the vacuum hearth bottom,
Work-piece shelf is perforated plate construction, and garbage collection tank is horizontal type structure, inside there is the semi-circular drawer for containing waste material；The bell
Headstock gear includes hydraulic power unit, fluid pressure line, oil cylinder, and the hydraulic power unit, fluid pressure line and oil cylinder constitute hydraulic system,
Bell is opened and closed by hydraulic system；1 oil cylinder is respectively provided in fire door left and right side；Bell is connect with burner hearth by uncapping hinge,
It is set at bell and fire door closure and uses sealing ring；It is additionally provided with pressure controller and flowmeter in the lower furnace portion, passes through pressure
Controller and flowmeter in burner hearth pressure and gas flow detect；Pressure controller and flowmeter, opening and closing lid dress
Hydraulic circuit system, waste collection systems, electric heater, vacuum pipe material-blockage preventing device, water spray system, the liquid-ring type set are true
Empty pump, preventing return water device, moisture trap, water circuit system, air-channel system are connected with power control cabinet controlling system, control cabinet
Into lower outlet under wiring use, control cabinet bottom is equipped with carbon steel mounting seat, power cable, the control cable of control cabinet to furnace body
Wire casing protection need to be laid, electrical component protection panels need to only be installed at main circuit connection in control cabinet, the low alarm of hydraulic pressure, overtemperature
Alarm, low vacuum alarm are alarm lamp mode, do not need sound, control system contains three sets of high-precision digital display type programmable temperature controls
Instrument, the optimised process program parameter that can start setting automatically carries out PID and adjusts temperature control, wherein a set of instrument program temperature control, one
Instrument interlock protection is covered, another set of instrument individually controls vacuum pipe material-blockage preventing device and chain with whole system, has as follows
Function:
(1) overtemperature alarm, and automatically cut off heating power supply；
(2) break and occasionally alarm, and automatically cut off heating power supply；
(3) circuit water alarm, and automatically cut off heating power supply；
(4) water-ring vacuum pump does not run or when vacuum degree lower bound position, equipment alarm, while cutting off heating power supply, is protected.
2. vacuum incineration furnace according to claim 1, which is characterized in that if the electric heater of the vacuum incineration furnace by
Dry root U-typed stainless steel electric heating tube composition, electric heater is mounted on the left and right sides, leading-out terminal in burner hearth is pacified by heater for hearth
It fills mouth to pass through outside insulating layer stretching furnace, furnace is externally provided with terminal box, and electric heater is protected by more stainless steel strips as anticollision barrier.
3. vacuum incineration furnace according to claim 1 or 2, which is characterized in that the water spray system includes sprayed tank,
There are water spray and filter device in sprayed tank, the ash content that dust generates after the burning of vacuum pipe material-blockage preventing device in furnace is sprayed through water
After stainless steel Pall ring spray filtering in shower device, then arrive the water-ring vacuum pump.
4. vacuum incineration furnace according to claim 3, which is characterized in that the preventing return water device: on sprayed tank
Normal-closed electromagnetic valve and manual intake valve are installed, when water-ring vacuum pump is opened, the solenoid valve and water-ring vacuum pump are simultaneously
Must be electric, solenoid valve is in closed state, when water-ring vacuum pump is closed, the solenoid valve while power loss, and it is in the open state,
It is at this time negative pressure in furnace, the outer air of furnace is quickly entered in furnace by the solenoid valve, makes furnace internal and external pressure balance.
5. vacuum incineration furnace according to claim 4, which is characterized in that be provided with water tank on vacuum incineration furnace, store up
Water pot provides work water source for vacuum incineration furnace, water supply line to water-ring vacuum pump, water spray system spray tank body it
Between be equipped with valve, water supply pipe is equipped with Y-shaped filter, and water-ring vacuum pump is also connected with moisture trap, passes through air water
Separator makes water, gas separation.
6. carrying out vacuum incineration-cleaning method using the described in any item vacuum incineration furnaces of claim 1-5, it is characterised in that
It comprises the steps of:
(1) cleaned part is put into furnace, bell is shut；
(2) according to the characteristic for being cleaned part, set programmable temperature control instrument by following temperature control curve, open heater switch, equipment into
Enter automatic operating state, the process of the heating and cooling of burning cleaning is as follows:
A, the temperature rise period: it is 270-350 DEG C that room temperature, which is appreciated to T1, T1, and temperature-rise period continues 40-80min；
B, melt stage: opening water-ring vacuum pump, automatically open inlet water solenoid valve, maintains 2.5-3.5 hours in T1 temperature；
C, D cleavage stages: T2 temperature is wherein risen to by T1 C sections, T2 temperature is 400-500 DEG C, heating-up time 20-40min, D section
T2 temperature is maintained, holding time is 5-6 hours, T2 temperature holding time 2-3 containing oxidation stage hours；
E, oxidation stage: being oxidation stage in D sections of second half sections, this stage all opens intake solenoid valve when starting, and maintains T2 temperature
Degree 2-3 hours, so far cleaning procedure all terminates；
F, the natural cooling stage.
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| CN106766868A (en) * | 2016-12-13 | 2017-05-31 | 无锡南方声学工程有限公司 | A kind of vacuum cleaning oven |
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| CN107159649A (en) * | 2017-06-27 | 2017-09-15 | 江苏鑫龙化纤机械有限公司 | Vacuum cleaner with exhaust-gas treatment |
| CN107557883A (en) * | 2017-08-24 | 2018-01-09 | 江苏金斗重工有限公司 | Environmental protection and energy saving vacuum cleaning oven |
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| CN112176433A (en) * | 2020-11-09 | 2021-01-05 | 天长市大发化纤有限公司 | Calcination mechanism for spinneret capillary hole dredging |
| CN112391684A (en) * | 2020-11-17 | 2021-02-23 | 广西德福莱医疗器械有限公司 | Method for processing hole plugging of spinning template |
| CN114371745B (en) * | 2021-12-29 | 2022-09-27 | 徐州捷科思网络科技有限公司 | Temperature control system |
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Address after: 224022, No. 29, Renmin Road, grand longitudinal Lake Town, Yancheng City, Jiangsu Patentee after: Jiangsu Xinlong Chemical Fiber Machinery Co., Ltd Address before: 224022, No. 29, Renmin Road, grand longitudinal Lake Town, Yancheng City, Jiangsu Patentee before: JIANGSU XINLONG CHEMICAL FIBER MACHINERY Co.,Ltd. |