Invention content
The object of the present invention is to provide a kind of spent ink processing units, can be evenly heated spent ink, and easy to clean.
The technical solution adopted by the present invention is:
A kind of spent ink processing unit, including evaporation tank, the steam heating mechanism for promoting temperature in evaporation tank and freezing machine
Structure;The evaporation tank includes babinet, and chamber door is provided on the babinet;Being horizontally disposed with from top to bottom in the babinet has
Multiple supporting racks are placed with one or more charging trays on each supporting rack;The top of the babinet is provided with solvent gas outlet,
The condensing mechanism is exported by solvent gas and is connected to inside evaporation tank;
The steam heating mechanism includes steam air source, admission passage and the one-to-one steam pipe coil of evaporation layer, drain pipe
Road and liquid collecting mechanism;The steam pipe coil is set in corresponding evaporation layer between supporting rack and charging tray;Each steam pipe coil
Import is connected to steam air source by admission passage, and the outlet of each steam pipe coil is connected to liquid collecting mechanism by hydrophobic pipeline;
It is provided with steam cock valve on the admission passage, hydrophobic switch valve is provided on the hydrophobic pipeline.
Steam heating mechanism described in the spent ink processing unit further includes steam reducing valve and pressure gauge, described
Steam reducing valve and pressure gauge may be contained on admission passage.
The spent ink processing unit further includes temperature control mechanism, and the temperature control mechanism includes giving up for acquiring in charging tray
Temperature sensor, controller and the internally piloted valve of ink temperature, the temperature sensor are positioned in any charging tray, the temperature
Spend the signal input part of the signal output end connection controller of sensor, the control of the signal output end connection internally piloted valve of controller
End.
The temperature control mechanism further includes anticorrosion casing, and the anticorrosion casing is sheathed on outside temperature sensor.
The temperature sensor is thermocouple, and the controller is temp controlled meter.
The material of the spent ink processing unit, the anticorrosion casing is polytetrafluoroethylene (PTFE).
The spent ink processing unit further includes nitrogen charging mechanism, the nitrogen charging mechanism include nitrogen source, nitrogen pipeline,
Nitrogen pressure reducing valve and nitrogen switch valve composition, the nitrogen source connects the nitrogen inlet on evaporation tank by nitrogen pipeline, described
Nitrogen pressure reducing valve and nitrogen switch valve be set in nitrogen pipeline;The nitrogen inlet is set to the bottom of the babinet of evaporation tank
End.
The spent ink processing unit, further includes pollution discharge mechanism, and the pollution discharge mechanism includes blow-off line, blowdown valve
With soiling solution collecting mechanism;The soiling solution collecting mechanism connects the soiling solution on evaporation tank by blow-off line and exports, the row
Dirty valve is set on blow-off line, and soiling solution outlet is set to the bottom end of the babinet of evaporation tank.
The chamber door includes preceding chamber door and rear chamber door, and the preceding chamber door is opened in the front panel of babinet, described
Chamber door is opened on the squab panel of babinet afterwards, and the preceding chamber door is fixedly installed sealing strip with babinet joint place;Chamber door after described
It is fixedly installed sealing strip with babinet joint place.
It is provided with thermal insulation board on the side wall of the babinet.
The present invention by the multiple charging trays of spent ink separating device, and by be set to the steam pipe coil of charging tray bottom to charging tray into
Row heating so that spent ink is heated evenly, and heating surface area is big, to improve spent ink organic efficiency, and is adhered on charging tray
Spent ink residue quite convenient for cleaning.
Further, temperature control mechanism is set, the temperature in charging tray is detected by temperature sensor, judges whether spent ink is complete
Evaporation, and being automatically closed for internally piloted valve is realized by controller, after the completion of realizing spent ink evaporation, admission passage is cut automatically
It is disconnected, it realizes that heating process is automatically stopped, greatly improves the automation performance of spent ink processing unit, alleviate staff's
Workload improves working efficiency to improve the safety of staff.
Specific implementation mode
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes evaporation tank 1, is heated for promoting the steam of temperature in evaporation tank 1
Mechanism and condensing mechanism 2;The evaporation tank 1 includes being provided with chamber door, the chamber door on babinet 1-1, the babinet 1-1
Including preceding chamber door 1-2 and rear chamber door 1-3, the preceding chamber door 1-2 is opened in the front panel of babinet 1-1, the rear chamber door
1-3 is opened on the squab panel of babinet 1-1, and the preceding chamber door 1-2 is fixedly installed sealing strip 1-4 with the joint places babinet 1-1;Institute
It states rear chamber door 1-3 and is fixedly installed sealing strip 1-4 with the joint places babinet 1-1.
Being horizontally disposed with from top to bottom in the babinet 1-1 has multiple supporting racks 3, on each supporting rack 3 there are one placements
Or multiple charging trays 4;The top of the babinet 1-1 is provided with solvent gas outlet, and the condensing mechanism 2 is exported by solvent gas
It is connected to 1 inside of evaporation tank;
The steam heating mechanism includes steam air source 5, admission passage 6 and the one-to-one steam pipe coil 7 of evaporation layer, dredges
Water lines 8 and liquid collecting mechanism 9;The steam pipe coil 7 is set in corresponding evaporation layer between supporting rack 3 and charging tray 4, Mei Gezheng
The import of vapour coil pipe 7 is connected to steam air source 5 by admission passage 6, and steam cock valve is provided on the admission passage 6
10, the steam heating mechanism further includes steam reducing valve 11 and pressure gauge 12, the steam reducing valve 11 and pressure gauge
12 may be contained on admission passage 6;
Steam reducing valve 11 and pressure gauge 12 are used cooperatively, and pressure gauge 12 monitors the steam pressure in admission passage 6, and passes through steaming
Vapour pressure reducing valve 11 adjusts the pressure for entering the steam in steam pipe coil 7 so that and the steam flow rate in steam pipe coil 7 is steady, suitable,
Ensure that the heat in steam pipe coil 7 is fully distributed into evaporation tank 1, avoids causing heat waste;
The outlet of each steam pipe coil 7 is connected to liquid collecting mechanism 9 by hydrophobic pipeline 8;It is provided on the hydrophobic pipeline 8 thin
Taps valve 13.
The setting of preceding chamber door 1-2, rear chamber door 1-3 are convenient for putting multiple rows of charging tray 4 in every layer of supporting rack 3, promote work just
Profit, to promote working efficiency.Sealing strip 1-4 between preceding chamber door 1-2, rear chamber door 1-3 and babinet 1-1 greatly improves steaming
The sealing performance for sending out case 1, the mixed solvent gas overflowing after preventing spent ink from evaporating, results in waste of resources, causes security risk,
It is also prevented from thermal energy spilling, has saved steam resource.
Preferably, the outlet of each steam pipe coil 7 connects hydrophobic pipeline 8, each steam pipe coil 7 by first flange 14
Import pass through first flange 14 connect admission passage 6.Flanged joint convenient disassembly, intensity height, good seal performance, prevent from steaming
Vapour leaks, and burn staff, avoids the steam wasting of resources.
The spent ink processing unit, further includes temperature control mechanism, and the temperature control mechanism includes temperature sensor 15, control
Device 16, internally piloted valve 17 and anticorrosion casing 18 processed, the temperature sensor 15 sealing are positioned over inside anticorrosion casing 18, and
Conducting wire, the signal wire being connected with temperature sensor 15 are also sheathed in the anticorrosion casing 18 being adapted to.Mounting temperature sensor
Sensor mounting hole is provided on the side wall of 15 charging trays 4, anticorrosion casing 18 is inserted into from sensor mounting hole in charging tray 4.It is described
Temperature sensor 15 signal output end connection controller 16 signal input part, controller 16 signal output end connection from
Control the control terminal of valve 17.
It is always the temperature of spent ink for the temperature that guarantee temperature sensor 15 measures, promotes the accuracy of temperature control mechanism,
Anticorrosion casing 18 is inserted into from the bottom of 4 outer patch charging tray 4 of charging tray in charging tray, and one end end is leaked outside charging tray 4, is convenient for wiring.
In the present embodiment, the temperature sensor 15 is thermocouple, and the controller 16 is temp controlled meter, thermocouple
Model PT100, the model PXR5NCY11W of temp controlled meter.
The material of the anticorrosion casing 18 is polytetrafluoroethylene (PTFE).Polytetrafluoroethylene (PTFE) has excellent chemical stability,
Corrosion resistance is strong, leakproofness is high, electrical insulating property is strong, ageing resistance is strong, and can adequately protect temperature sensor 15 and conducting wire, signal wire
Do not corroded by 1 high temperature solvent mixed gas of evaporation tank, liquid, extends the service life of temperature control mechanism.Polytetrafluoroethylene (PTFE) has
There is high lubrication non-stick, 18 adhesion spent ink of anticorrosion casing can be prevented, ensures that the spent ink in charging tray 4 is fully evaporated.
The course of work of the present invention is as follows:The chamber door for opening evaporation tank 1, several charging trays 4 are divided in by spent ink
It is interior, charging tray 4 is put on the steam pipe coil 7 in evaporation cabinet, the chamber door of evaporation tank 1 is closed.Pass through temp controlled meter set temperature, setting
The value of temperature is highest evaporating temperature, and highest evaporating temperature higher than the boiling temperature of maximum boiling point solvent in spent ink about 5 is Celsius
Degree.Steam cock valve 10 is opened, and the steam pressure in admission passage 6 is read by pressure gauge 12, passes through steam reducing valve 11
The steam pressure entered in steam pipe coil 7 is adjusted, charging tray 4 is begun to warm up.
The solvent in spent ink in charging tray 4 gradually evaporates, and the solvent evaporated becomes mixing hot gas, rises to evaporation
1 upper end of case, solvent gas vent enter condensing mechanism 2, and cohesion again is clean solvent, recycles, realizes resource
Recycling.Enter in liquid collecting mechanism 9 from hydrophobic pipeline 8 after steam condensation.
Temperature in 15 real-time detecting material disk 4 of temperature sensor, and temperature signal is transmitted in temp controlled meter.Temp controlled meter will
Real time temperature in charging tray 4 is compared with set temperature.
During evaporation of the solvent in spent ink, the solvent that the heat in charging tray 4 is evaporated is taken away, therefore, charging tray 4
In temperature be maintained at lower temperature.After the completion of the evaporation of the solvent in charging tray 4, thermal reservoir in charging tray 4, on temperature is rapid
It rises.When the real time temperature in charging tray 4 rises to set temperature, the signal output end of temp controlled meter sends triggering letter to internally piloted valve 17
Number, internally piloted valve 17 is automatically closed, and steam stops entering in steam pipe coil 7, and 4 heating process of charging tray ends automatically.
The present invention is by the multiple charging trays of spent ink separating device 4, and by being set to the steam pipe coil 7 of 4 bottom of charging tray to material
Disk 4 is heated so that and spent ink is heated evenly, and 4 heating surface area of charging tray is big, and the evaporation efficiency of spent ink greatly improves, and
The spent ink residue on charging tray 4 is adhered to quite convenient for cleaning.
Further, temperature control mechanism is set, the temperature in charging tray 4 is detected by temperature sensor 15, whether judges spent ink
Evaporating completely, and being automatically closed for internally piloted valve 17 is realized by controller 16, after the completion of realizing spent ink evaporation, admission passage
6 automatically cut off, and realize that heating process is automatically stopped, greatly improve the automation performance of spent ink processing unit, alleviate work
The workload for making personnel, improves working efficiency.
It is provided with thermal insulation board on the side wall of the babinet 1-1, reduces the heat exchange inside and outside evaporation tank 1, improves steam
Utilization rate, saved resource.
The spent ink processing unit further includes nitrogen charging mechanism, and the nitrogen charging mechanism includes nitrogen source 19, nitrogen pipeline
20, nitrogen pressure reducing valve 21 and nitrogen switch valve 22 form, and the nitrogen source 19 connects the nitrogen on evaporation tank 1 by nitrogen pipeline 20
Gas import, the nitrogen pressure reducing valve 21 and nitrogen switch valve 22 are set in nitrogen pipeline 20;The nitrogen inlet setting
In the bottom end of the babinet 1-1 of evaporation tank 1.
Preferably, nitrogen pipeline 20 is fixedly connected with nitrogen inlet by nitrogen pipeline connecting flange 23.
After internally piloted valve 17 is closed, not in entering evaporation tank 1, the temperature in evaporation tank 1 is gradually reduced steam, at this point,
Remaining spent ink solvent mixed gas in evaporation tank 1 is that pressure declines, and cannot enter back into condensing mechanism 2, and is stayed in evaporation
In case 1.
At this point, opening the nitrogen switch valve 22 in nitrogen pipeline 20, and nitrogen pressure is adjusted by nitrogen pressure reducing valve 21, made
It obtains nitrogen to be filled with from bottom to top in evaporation tank 1, the remaining spent ink solvent mixed gas in evaporation tank 1 is pushed into condensing mechanism 2
In, overflowed in nitrogen autocondensation mechanism 2, to reduce condensed again by remaining spent ink solvent mixed gas made of liquid
Body had both improved the recovery utilization rate of spent ink, had been greatly reduced the cleaning difficulty of evaporation tank 1.
The spent ink processing unit further includes pollution discharge mechanism, and the pollution discharge mechanism includes blow-off line 24, blowdown
Valve 25 and soiling solution collecting mechanism 26;The soiling solution collecting mechanism 26 connects the soiling solution on evaporation tank 1 by blow-off line 24 and goes out
Mouthful, the blowdown valve 25 is set on blow-off line 24, and soiling solution outlet is set to the bottom of the babinet 1-1 of evaporation tank 1
End.After heating stops, some spent ink mixed gas condenses again becomes liquid, can not clearly be blown and clean by nitrogen.
Therefore, after nitrogen blows over journey clearly, blowdown valve 25 is opened, this part of spent ink liquid is discharged into dirt from blow-off line 24
Liquid collecting mechanism 26 is also achieved and is cleared up again in evaporation tank 1 convenient for recycling again, improves the clean journey of evaporation tank 1
Degree.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.