CN104892931B - A kind of polyamide processing unit (plant) - Google Patents
A kind of polyamide processing unit (plant) Download PDFInfo
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- CN104892931B CN104892931B CN201510359061.1A CN201510359061A CN104892931B CN 104892931 B CN104892931 B CN 104892931B CN 201510359061 A CN201510359061 A CN 201510359061A CN 104892931 B CN104892931 B CN 104892931B
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Abstract
The present invention discloses a kind of polyamide processing unit (plant), includes polycondensation device, defecator and granulating system from front to back successively by technological process.The polycondensation device includes polycondensation vessel, Dropping feeder, the first pipe bundle condenser and the first airway.The defecator includes filter, the second feed pipe, the first discharge nozzle and oil pipe.The granulating system includes granulating mechanism, particle conveying mechanism and pelletize grading discharge mechanism from front to back successively according to technological process.The present invention has that high in machining efficiency, process safety is good, product percentage of impurity is low.
Description
Technical field
A kind of the present invention relates to preparation field of polyamide, more particularly to polyamide processing unit (plant).
Background technology
Polyamide, abbreviation PA is the polymer on main chain with amido link.Can by diamine and binary acid polycondensation,
Lactams ring-opening polymerisation is obtained.Multiple polyamides are obtained as binary acid used is different with the species of diamine.Press phase
High-molecular polyamide resin and low molecule pa resin are substantially classified as to the size of molecular weight.
High-molecular polyamide resin, i.e., widely known nylon or chinlon, by straight-chain aliphatic binary acid and diamine structure
Into, mainly for the preparation of synthetic fibers and engineering plastics, the complete class polyamide of R and D technics comparing.Low point
Sub- polyamide is obtained after carrying out polycondensation reaction by dimeric dibasic acid with diamine or polyamine, also known as dimer acid polyamide resin.
Two big class can be divided into by its property：Non-reacted or neutral polyamide and reactive polyamide.Neutral polyamide is mainly by two
Polyacids and ethylenediamine synthesis, for producing ink, heat sealing adhesive and coating.
At present, dimeric dibasic acid and ethylenediamine is adopted to have the following disadvantages for raw material production polyamide：
First, the heating system of reactor is mostly electrical heating, as heating and temperature control is poor, cause heating-up temperature mistake
High or too low, so as to have a strong impact on product quality.With the patent application institute that heat-conducting oil heating such as publication No. is CN103100361A
A kind of heat-conducting oil heating reactor system that states, by adopting circulating heat conduction, it is ensured that the constant temperature of reactor.But, this heating
Method needs blood circulation to locate in working order, just to can guarantee that the constant of temperature of reaction kettle that automaticity is low all the time.And,
In the technical scheme of the patent application, though heat conduction chuck is externally provided with heat-insulation layer and can play certain effect of heat insulation, due to portion
Divide reaction to require that temperature is higher, heat can be caused to penetrate thermal insulation layer and come out, can also there is the harm of the staff that burns, lack
The weary function near rear warning.
Second, the polyamide after through polycondensation reaction needs just carry out pelletize after filtering, and when filtering, the temperature of fluid
Degree can be gradually reduced, and affect granulation efficiency.
Third, in prilling, in granulating cylinder, the power transmission shaft of pellet device is typically connected with the output shaft of motor, lead to
The rotation for crossing motor drives the rotation of grain-cutter, reaches the purpose of pelletizing.This pelletizing mode needs to fix one on comminutor
Individual motor position, the motility that equipment is installed are poor.In traditional handicraft, through granulator granulation after the direct blanking of particle, but now
Particle not yet cools down and still volatilizees some organic exhaust gas.Further, since in granulation process, some can be produced lighter cotton-shaped
Thing, after direct blanking, can bring in blanking device, be that follow-up cleaning makes troubles.And, the pelletize grading discharge of traditional handicraft
, mostly for manually being screened, screening efficiency is relatively low for technique.
Content of the invention
The present invention is directed to the deficiencies in the prior art, there is provided a kind of high in machining efficiency, process safety is good, product percentage of impurity is low
Polyamide production system.
The present invention solves above-mentioned technical problem using following technological means：A kind of polyamide processing unit (plant), the processing
Device technique flow process includes polycondensation device, defecator and granulating system from front to back successively.
The polycondensation device includes polycondensation vessel, Dropping feeder, the first pipe bundle condenser and the first airway.Described first
Pipe bundle condenser is connected with the internal cavities of the polycondensation vessel by first airway, and the Dropping feeder includes liquid storage
Tank, catheter and valve.One end of the catheter is connected with the discharging opening of the fluid reservoir, the catheter another
End is extended in the internal cavities of the polycondensation vessel, and the valve is arranged on the catheter.First pipe bundle condenser
In be provided with the first deflection plate, first deflection plate is connected with the condensing tube in first pipe bundle condenser.The polycondensation
Kettle includes that polycondensation kettle and polycondensation kettle cover, the polycondensation kettle include interior tank body and outer tank body, offer in the outer tank body
First oil-in and the first oil-out.Fluid is stored at cavity between the interior tank body and the outer tank body, the kettle
Cover and offer the 4th charging aperture.The polycondensation device also includes automatic temp controller, and the automatic temp controller includes temperature
Sensor, circulating pipe, circulating pump, electronic valve and fuel reserve tank.The temperature sensor is arranged in the outer tank body, described
Circulating pump and the electronic valve are arranged on the circulating pipe.The second oil-in and is offered on the fuel reserve tank
Two oil-outs, the circulating pipe include oil inlet pipe and flowline.First oil-in is passed through with second oil-out
The oil inlet pipe is connected, and first oil-out is connected by the flowline with second oil-in.
The defecator includes filter, the second feed pipe, the first discharge nozzle and oil pipe.The second feed pipe bag
The second charging inner tube and the second charging outer tube is included, first discharge nozzle includes that the first discharging inner tube and the first discharging are outer
Pipe, be stored with the cavity between inner tube outer tube corresponding thereto fluid.Described second one end for feeding outer tube and the oil pipe
It is connected, the first discharging outer tube is connected with the other end of the oil pipe.The first discharging inner tube and described second
Charging inner tube is communicated with the internal cavities of the filter.
The granulating system includes granulating mechanism, particle conveying mechanism and pelletize from front to back successively according to technological process
Grading discharge mechanism.
The granulating mechanism includes that distributing device and actuating device, the distributing device include granulating cylinder and pellet device.
The pellet device includes that grain-cutter and power transmission shaft, the grain-cutter are set in the power transmission shaft, the master of the power transmission shaft
Body portion is housed in the cavity of the granulating cylinder, and the two ends of the power transmission shaft are extended outside the cavity of the granulating cylinder.Institute
The bottom for stating granulating cylinder offers several regularly arranged material holes, offers spout, the material at the top of the granulating cylinder
Hole, spout and the cavity intercommunication.The actuating device includes motor, first gear, second gear and chain, described
Chain is set in the first gear and second gear, and the output shaft of the motor is connected with the first gear, described
Second gear is connected with the end of the power transmission shaft.
The particle conveying mechanism includes that the particle flowed out through granulating cylinder is passed by conveyer device, the conveyer device
Send.The conveyer device includes drivewheel, driven pulley and drapery panel, and the drapery panel is set in the drivewheel and driven
On wheel.The conveyer device also includes that some pieces pat plate, and the plate that pats is fixed perpendicular to the conveying direction of the drapery panel
On lower layer mix feeding plate, and ensure that the length direction for patting plate is parallel with the width of the drapery panel.Described
The side of conveyer device is additionally provided with several automatic spraying devices.Gas sampling dress is additionally provided with above the conveyer device
Put, the waste gas collection device includes extractor fan and ventilation shaft.The extractor fan is arranged on the upper of the granulating cylinder
Side, one end of the ventilation shaft are connected with the extractor fan, and the other end of the ventilation shaft is parallel to the conveying dress
The length direction that puts extends to the top of the delivery device tip.The bottom of the ventilation shaft is provided with some row's ventilations
Eye.
The pelletize grading discharge mechanism include scraper, sieve, blanking funnel, hair-dryer, segregation apparatuss, second discharging
Pipe, floccule collection device and siphunculus more than second.The edge of a knife of the scraper abuts in the drapery panel of the delivery device tip
On, the opening for being arranged on the lower section of the scraper and being fixed on the blanking funnel that sieves, the bottom of the blanking funnel
Portion and the siphunculus more than second are to connecting.The arrival end of the siphunculus more than second is provided with the hair-dryer, the porous pipe line
Outlet be connected with the entrance of the segregation apparatuss, offer on the segregation apparatuss floccule outlet, the segregation apparatuss
Bottom offers discharging opening.The floccule outlet is connected with the floccule collection device by second passage.
Second discharge nozzle is connected with the discharging opening of the segregation apparatuss.The discharge outlet of the segregation apparatuss is provided with side tool
Lock, is provided with the 5th elevator pump on second passage.
Preferably, the polycondensation device also includes that thermal insulation protection set, the polycondensation vessel are set in the thermal insulation protection set.
The circulating pump is arranged on the oil inlet pipe, and the electronic valve is arranged on the flowline.Also set up on the circulating pump
There is power governor.The outside of the thermal insulation protection set is provided with non-contact inductive alarm device, the non-contact inductive
Alarm device includes infrared sensor, processor and acoustic-optic alarm.The outfan of the infrared sensor and the place
The input of reason device is connected, and the outfan of the processor is connected with the input of the acoustic-optic alarm.
Preferably, the defecator also includes the 5th flange and the 6th flange, the second charging outer tube with described
One end of oil pipe is connected by the 5th flange, and the first discharging outer tube passes through the 6th method with the other end of the oil pipe
Orchid is connected.Automatic heating device is additionally provided with the oil pipe, the heater includes temperature controller and heater,
Portable power source interface is additionally provided with the heater.The temperature controller includes display screen and control device, the control
USB interface is provided with system processed.The filter includes protective housing and the filtration being arranged on inside the protective housing
Component.
Preferably, the actuating device also includes Tension gear, the Tension gear be located at the first gear with described
Between second gear and it is arranged on the inner side of the chain.A diameter of 0.8mm in the material hole, the outside of the spout are arranged
There is closure, the closure is adopted with the spout and is threadedly coupled.The granulating mechanism also includes two secondary bracing frames, described
Two secondary bracing frames are oppositely arranged, and two ends of the granulating cylinder are arranged on corresponding bracing frame, and the grain-cutter is in spiral shell
Rotation shape is set in the power transmission shaft.
Preferably, the length for patting plate is not shorter than the width of the drapery panel, and the bottom for patting plate is coated with
Smooth layer.The two ends for patting plate length direction are respectively welded fix bar, and the bottom of the fix bar fixes on the ground.
The automatic spraying device includes shower nozzle, heat induction apparatuss, receiver, electric controller, water pump and water tank.The shower nozzle is solid
It is scheduled on the top of the drapery panel, the heat induction apparatuss are in order to testing the heat for being distributed in that particle on drapery panel is distributed.Institute
Receiver is stated in order to receive the signal that the heat induction apparatuss send, the electric controller receives the letter that the receiver sends
Cease and drive the water pump to be drawn water.
Preferably, the mesh diameter for sieving be (0.6-1.1) mm, the opening bore of the blanking funnel with described
That sieved is equal in magnitude.The side tool lock includes striker plate and handle of a knife, one end of the striker plate and the segregation apparatuss
Discharging opening is hinged, and is provided with the handle of a knife on the other end of the striker plate.PCU Power Conditioning Unit is additionally provided with the blower fan,
The PCU Power Conditioning Unit is transformator.The pelletize grading discharge mechanism also includes two pieces of fixed plates, two pieces of fixed plates
It is oppositely arranged on the both sides of the end of the conveyer device.Groove, the two ends point of the scraper are provided with every piece of fixed block
Screw rod is not welded with, and the screw rod is also arranged with two nuts, nut point with the groove using being slidably connected on every screw rod
The both sides of corresponding groove are not close to.
During the present invention is by adding dimeric dibasic acid to polycondensation vessel, being simultaneously added dropwise ethylenediamine carries out polycondensation reaction；Passed through again
Filter device is filtered to the product after through polycondensation reaction；Product after by filtration feeds in granulating system and carries out pelletize, obtains
Product.
It is an advantage of the current invention that：
1) automatic temp controller is centered in polycondensation dress, the signal sent by temperature sensor is controlling electronic valve
It is turned on and off, realizes the fluid in polymeric kettle and the circulation of fluid in fuel reserve tank, reach the effect of automatic heat preserving.By following
Power governor is set on ring pump, adjusts the speed of circulation.Infrared sensor is set by covering in thermal insulation protection, when there is work
Make personnel near kettle when, infrared sensor sends signal, through processor process after, drive acoustic-optic alarm report to the police, improve
The safety of staff.
2) by be passed through in second feed pipe and the first discharge nozzle of defecator fluid and with oil pipe in fluid
Connection, it is ensured that the transmission of heat, realizes the constant of fluid temperature (F.T.).By automatic heating device being arranged on oil pipe, realize oil pipe
The On-line Control of temperature.Due to USB interface being provided with temperature controller, can enter stroke by inserting USB flash disk or portable hard drive
The input of sequence.
3) rotated by motor, drive first gear to rotate, first gear rotates the rotation for driving second gear, the second tooth
The rotation of wheel drives rotary shaft to rotate, and so as to drive the grain-cutter on power transmission shaft to rotate, realizes cutting, so as to improve motor installation
Motility.Tensioning wheel is set between first gear and second gear, prevents chain from working long hours and relaxing deformation.Defeated
Send the side of device that automatic spraying device is set, the heat for sensing surrounding by heat induction apparatuss sends signal, is connect by receiver
Receiving signal and information being sent to electric controller, then pump working is driven by electric controller, water is sprayed onto cloth from shower nozzle
On plate, the purpose of spraying cooling is realized.Arrange on lower layer mix feeding plate and pat plate, prevent drapery panel from working long hours and rolling over
Wrinkle.By the design of fixed plate, the effect for adjusting the gap between scraper edge and drapery panel can be reached.By more than second
The arrival end of siphunculus arranges blower fan, by adjusting the power of blower fan, the particle classification of different stage is blown in segregation apparatuss, grain
During son is automatically fallen into discharge nozzle, and the floccule being mingled with particle is evacuated in floccule collection device by the 6th elevator pump, real
Existing automatic classification, the purpose of automatic impurity removing.
Attached description of the drawings
Structured flowcharts of the Fig. 1 for the embodiment of the present invention.
Fig. 2 is the structural representation of polyplant in the embodiment of the present invention.
Fig. 3 is the structural representation of transfer kettle in the embodiment of the present invention.
Fig. 4 is the structural representation of centrifugal separating device in the embodiment of the present invention.
Fig. 5 is the structural representation of pipeline switch filtering device in the embodiment of the present invention.
Fig. 6 is the structural representation of flange in the embodiment of the present invention.
Fig. 7 is the structural representation of polycondensation device in the embodiment of the present invention.
Fig. 8 is the structural representation of defecator in the embodiment of the present invention.
Fig. 9 is the structural representation of distributing device in the embodiment of the present invention.
Figure 10 is the structural representation of pelletize conveying mechanism in the embodiment of the present invention.
Figure 11 is the structural representation of automatic spraying device in the embodiment of the present invention.
Figure 12 is the partial perspective view of pelletize grading discharge mechanism in the embodiment of the present invention.
Figure 13 is the structural representation of pelletize grading discharge mechanism in the embodiment of the present invention.
Specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, the present embodiment includes polyplant, acidifying kettle, filter press from front to back successively by technological process
Machine, transfer kettle, centrifugal separating device, membrane evaporator, molecular distillation apparatus, pipeline switch filtering device, polycondensation device, filtration
Device and granulating system.
The acidifying kettle, the filter press, the membrane evaporator and the molecular distillation apparatus are existing
Equipment.
As shown in Fig. 2 polyplant includes polymeric kettle 101 and carries material device 102, the polymeric kettle 101 includes being polymerized
Kettle 1011 and polymerization kettle cover 1012, offer first charging aperture 1013 on the polymerization kettle cover 1012.Described carry material device
102 include storage tank 1021, the first elevator pump 1022 and the first passage 1023.One end of first passage 1023 with
The first charging aperture 1013 is connected, the other end of first passage 1023 and the discharging opening phase of the storage tank 1021
Even, first elevator pump 1022 is arranged on first passage 1023.
As shown in figure 3, the transfer kettle includes transfer still shell body 401 and contact automatic alarm system 402, described in
Turn on still shell body 401, to offer second charging aperture 403, the contact autoalarm 402 includes the first liquid level sensor
4021 and warning system 4022.First liquid level sensor 402 is suspended on the internal cavities of the transfer still shell body 401
In, first liquid level sensor 4021 sends induced signal and drives the warning system 4022 to send alarm signal.
As shown in figure 4, the centrifugal separating device includes centrifuge, separating tank and drain pipe 503.The centrifuge bag
Include housing 5011, upper lid 5012, rotary drum 5013, light phase weir 5014, heavy phase weir 5015.The rotary drum 5013 is arranged on the housing
5011 center, the light phase weir 5014 are arranged on the open area at the top of the rotary drum 5013, and the heavy phase weir 5015 sets
Put the bottom of lid 5012 on described.The 3rd charging aperture 5016, the first water inlet 5017, light phase is offered on the housing 5011
Outlet 5018 and heavy out 5019.3rd charging aperture 5016 and first water inlet 5017 be located at described light phase go out
Mouth 5018 and the lower section of the heavy out 5019.The first discharge outlet 50110, the first row is offered on the upper lid 5012
The mouth of a river 50110 is relative with the drain pipe 503 to be connect, and is provided with the second elevator pump 504 on the drain pipe 503.The separating tank
502 lower sections for being arranged on the heavy out 5019, are provided with baffle plate 5023 in the separating tank 502, the baffle plate 5023
There is gap with the bottom of 502 inwall of the separating tank in bottom.
Open up on the inwall of the rotary drum 5013 and be equipped with temperature control equipment 5021, the temperature control equipment includes temperature-sensitive
Device 50211, electronic heater 50212 and heating tube 50213, the temperature test scope of the temperature detector 50211 is (50-
100)℃.It is (85-95) DEG C through water its temperature range that first water inlet 5017 is flowed into, the baffle plate 5023 is welded on institute
State on the side wall of 502 internal cavities of separating tank, the separating tank is divided into the first cavity 5021 and the second cavity 5022.Described
Gap is (1-5) cm, and the centrifugal separating device 5 also includes heavy phase discharge pipe 505, be provided with the heavy phase discharge pipe 505
3rd elevator pump 506, one end of the heavy phase discharge pipe 505 are connected with the heavy out 5019, and the heavy phase is discharged
The other end of pipe 5023 is extended in first cavity 5021 and (can be extended in second cavity 5022).The heavy phase
Discharge pipe 505 is connected with the heavy out 5019, and the separating tank is provided with the universal wheel 5024 that dynamic device stayed by band.
As seen in figs. 5-6, the pipeline switch filtering device includes that the first feed pipe 701, surge tank more than 702, first lead to
Pipe 703, several filtering tanks 704, connecting tube 705 and return duct 706.The 4th elevator pump is provided with the return duct 706
707.The siphunculus more than first 703 is tee T, and the tee T is made up of vertical tube 7031 and transverse tube 7032.The filtering tank
704 include the first filtering tank 7041 and the second filtering tank 7042.The discharging opening phase of the vertical tube 7031 and the surge tank 702
Connection, one end of the transverse tube 7032 are connected with first filtering tank 7041 by first flange 708, the transverse tube 7031
The other end be connected with second filtering tank 7042 by second flange 709.The feeding mouth of the connecting tube 705 is by the
Three flanges 7010 are connected with the discharging opening of first filtering tank 7041 and (can also be connected with the discharging opening of the second filtering tank 7042
Logical), the discharging opening of the connecting tube 705 is connected with the return duct 706 by the 4th flange 7011.In the vertical tube 7031
On be additionally provided with main valve 7033, be provided with point valve 7034 at the two ends of the transverse tube 7031, all flanges include fixation
Blue disk 7015, mounting flange 7016 and securing member 7017.The fixed flange 7015 by the securing member 7017 with
The mounting flange 7016 connects integral, is additionally provided with close between the fixed flange 7015 and mounting flange 7016
Packing 7018, the surface-coated of the sealing gasket 7018 have waterproof, anticorrosive coat (being not drawn in figure).
As shown in fig. 7, the polycondensation device include polycondensation vessel 801, Dropping feeder 802, the first pipe bundle condenser 803 and
First airway 804.First pipe bundle condenser 803 passes through the inside of first airway 804 and the polycondensation vessel 801
Cavity is connected, and the Dropping feeder 802 includes fluid reservoir 8021, catheter 8022 and valve 8023.The catheter
8022 one end is connected with the discharging opening of the fluid reservoir 8021, and the other end of the catheter 8022 extends to the polycondensation
In the internal cavities of kettle 801, the valve 8023 is arranged on the catheter 8022.In first pipe bundle condenser 803
The first deflection plate 805 is provided with, first deflection plate 805 is connected with the condensing tube in first pipe bundle condenser 803；Institute
Stating polycondensation vessel 801 includes polycondensation kettle 8011 and polycondensation kettle cover 8012, the polycondensation kettle 8011 include interior tank body 80111 with
Outer tank body 80112, offers the first oil-in and the first oil-out in the outer tank body 80112.The interior tank body 80111 with
Fluid is stored at cavity between the outer tank body 80112, the 4th charging aperture on the kettle cover 8012, is offered.The polycondensation
Device 8 also includes that automatic temp controller 805, the automatic temp controller 805 include temperature sensor 8051, circulating pipe, follow
Ring pump 8053, electronic valve 8054 and fuel reserve tank 8055.The temperature sensor 8051 is arranged in the outer tank body 80112,
The circulating pump 8053 and the electronic valve 8054 are arranged on the circulating pipe.Offer on the fuel reserve tank 8055
Second oil-in and the second oil-out, the circulating pipe 8055 include oil inlet pipe 80551 and flowline 80552.Described
First oil-in is connected by the oil inlet pipe 80551 with second oil-out, first oil-out and described second
Oil-in is connected by the flowline 80552.
The polycondensation device also includes that thermal insulation protection set 806, the polycondensation vessel 801 are set in the thermal insulation protection set 806
In.The circulating pump 8053 is arranged on the oil inlet pipe 80551, and the electronic valve 8054 is arranged on the flowline 80552
On.Power governor 8058 is additionally provided with the circulating pump 8053.The outside of the thermal insulation protection set 806 is provided with noncontact
Formula induction alarm device 807, the non-contact inductive alarm device 807 include infrared sensor, processor and acousto-optic report
Alarm device.The outfan of the infrared sensor is connected with the input of the processor, the outfan of the processor and institute
The input for stating acoustic-optic alarm is connected.
As shown in figure 8, the defecator includes filter 901, the second feed pipe 902, the first discharge nozzle 903 and oil
Pipe 904.Second feed pipe 902 includes the second charging inner tube 9021 and the second charging outer tube 9022, first discharging
Pipe 903 includes the first discharging inner tube 9031 and the first discharging outer tube 9032, at the cavity between inner tube outer tube corresponding thereto
Be stored with fluid.The second charging outer tube 9022 is connected with one end of the oil pipe 904, the first discharging outer tube 9032
It is connected with the other end of the oil pipe 904.Described first discharging inner tube 9031 and described second charging inner tube 9021 with
The internal cavities of the filter 901 are communicated.
The defecator also includes the 5th flange 905 and the 6th flange 906, the second charging outer tube 9022 and institute
The one end for stating oil pipe 904 is connected by the 5th flange 905, the first discharging outer tube 9032 and oil pipe 904
The other end is connected by the 6th flange 907.Automatic heating device 907, the heater is additionally provided with the oil pipe 904
907 include temperature controller and heater, are additionally provided with portable power source interface 908 on the heater.The temperature control
Device includes display screen and control device, is provided with USB interface 909 on the control device.The filter 901 includes protecting
Housing 9011 and the filter assemblies 9012 being arranged on inside the protective housing.
As shown in figure 1, the granulating system includes granulating mechanism, pelletize conveyer from front to back successively according to technological process
Structure and pelletize grading discharge mechanism.
As shown in figs. 9-10, the granulating mechanism includes that distributing device and actuating device, the distributing device include granulating cylinder
100111 and pellet device 100112.The pellet device 100112 includes grain-cutter 1001121 and power transmission shaft
1001122, the grain-cutter 1001121 is set in the power transmission shaft 1001122, the main part of the power transmission shaft 1001122
Divide and be housed in the cavity of the granulating cylinder 100111, the granulating cylinder is extended at the two ends of the power transmission shaft 1001122
Outside 100111 cavity.The bottom of the granulating cylinder 100111 offers several regularly arranged material holes 100113, described makes
The top of grain cylinder 100111 offers spout 100114, the material hole 100113, the spout 100114 and the sky
Chamber intercommunication.The actuating device includes motor 100122, first gear 100121, second gear 100123 and chain
100124, the chain 100124 is set in the first gear 100121 and second gear 100123, the motor
100122 output shaft is connected with the first gear 100121, the second gear 100123 and the power transmission shaft 1001122
End be connected.
The actuating device also includes that Tension gear 100125, the Tension gear 100125 are located at the first gear
Between 100122 and the second gear 100123 and it is arranged on the inner side of the chain 100124.The material hole 100113 straight
Footpath is 0.8mm, and the outside of the spout 100114 is provided with closure 100115, the closure 100115 and the feeding
Mouth 100114 is using threaded connection.The granulating mechanism also includes two secondary bracing frames 10013, described two 10013 phases of secondary bracing frame
To arranging, two ends of the granulating cylinder 100111 are arranged on corresponding bracing frame 10013, the grain-cutter
1001121 are set in the power transmission shaft 1001122 in the shape of a spiral.
As shown in figs. 10-11, the pelletize conveying mechanism includes conveyer device, and the conveyer device will be through granulating cylinder
100111 particles for flowing out are transmitted.The conveyer device includes drivewheel 100211, driven pulley 100212 and drapery panel
100213, the drapery panel 100213 is set on the drivewheel 100211 and driven pulley 100212.The conveyer device
Also include that some pieces pat plate 100214, the plate 100214 that pats is fixed on lower floor perpendicular to the conveying direction of the drapery panel
On drapery panel 100213, and the length direction of plate 100214 and the width phase of the drapery panel 100213 is patted described in ensureing
Parallel.Several automatic spraying devices 10022 are additionally provided with the side of the conveyer device.The top of the conveyer device is also
Waste gas collection device is provided with, the waste gas collection device includes extractor fan 100231 and ventilation shaft 100232.Described
Extractor fan 100231 is arranged on the top of the granulating cylinder 100111, one end of the ventilation shaft 100232 and the convulsion
Device 100231 is connected, and the other end of the ventilation shaft 100231 extends to institute parallel to the length direction of the conveyer device
State the top of delivery device tip.The bottom of the ventilation shaft 100232 is provided with some row's ventilation holes 100233.
The length for patting plate 100214 is not shorter than the width of the drapery panel 100213, the plate 100214 that pats
Bottom is coated with smooth layer (being not drawn in figure).The two ends for patting 100214 length direction of plate are respectively welded fix bar
(being not drawn in figure), the bottom of the fix bar fix on the ground.The automatic spraying device 10022 includes shower nozzle
100221st, heat induction apparatuss, receiver, electric controller, water pump 100222 and water tank 100223.The shower nozzle 100221 is solid
It is scheduled on the top of the drapery panel 100213, to be distributed in particle on drapery panel 100213 dissipated in order to test for the heat induction apparatuss
The heat that sends out.In order to receive the signal that the heat induction apparatuss send, the electric controller receives the receipts to the receiver
Information that letter machine sends simultaneously is drawn water by water pump 100222 described in Motor drive.
As illustrated by figs. 12-13, the pelletize grading discharge mechanism include scraper 10031,10032, blanking funnel of sieving
10033rd, hair-dryer 10034, segregation apparatuss 10035, the second discharge nozzle 10036, floccule collection device more than 10037 and second
Siphunculus 10038.The edge of a knife of the scraper 10031 is abutted on the drapery panel 100213 of the delivery device tip, described is sieved
10032 lower sections for being arranged on the scraper 10031 are simultaneously fixed on the opening of the blanking funnel 10033, the blanking funnel
10033 bottom and the siphunculus more than second 10038 are to connecting.The arrival end of the siphunculus more than second 10038 is provided with described
Hair-dryer 10034, the outlet of the porous pipe line are connected with the entrance of the segregation apparatuss 10035, the segregation apparatuss 10035
On offer floccule outlet, the bottom of the segregation apparatuss 10035 offers discharging opening.The floccule outlet 10035 is led to
Cross second passage 10036 to be connected with the floccule collection device 10037.Second discharge nozzle 10036 and institute
The discharging opening for stating segregation apparatuss 10035 is connected.The discharge outlet of the segregation apparatuss 10035 is provided with side tool lock 100310,
The 5th elevator pump 100311 is provided with second passage 10036.
Described sieve 10032 mesh diameter be (0.6-1.1) mm, the opening bore of the blanking funnel 10033 with
Described sieve 10032 equal in magnitude.The side tool lock 100310 includes striker plate 1003101 and handle of a knife 1003102, described
One end of striker plate 1003101 is hinged with the discharging opening of the segregation apparatuss 10035, the other end of the striker plate 1003101
On be provided with the handle of a knife 1003102.PCU Power Conditioning Unit 100341 is additionally provided with the blower fan 10034, and the power is adjusted
Regulating device 100341 is transformator.The pelletize grading discharge mechanism also includes two pieces of fixed plates 10039, two pieces of fixed plates
The both sides of 10039 ends for being oppositely arranged on the conveyer device.Groove 100391 is provided with every piece of fixed block 10039,
The two ends of the scraper 10031 are respectively welded screw rod 100311, and the screw rod 100311 is with the groove 100391 using cunning
Dynamic connection, is also arranged with two nuts 100312 on every screw rod 100311, nut is close to the both sides of corresponding groove respectively.
The production method of the present embodiment is comprised the following steps：
1), in adding vegetable oil acid, hargil, lithium carbonate and water to polymeric kettle, polyreaction is carried out；
2) by polymerization after product press-in acidifying kettle in be acidified；
3) product after filter press is to acidifying is filtered, and obtains rough dimeric dibasic acid；
4) rough dimeric dibasic acid is pressed in transfer kettle and is kept in；
5) during feed rough dimeric dibasic acid to centrifugal separating device, and mix with hot water, be centrifuged；
6), in the product feeding membrane evaporator after being centrifuged, distilled, removed steam；
7), during feed the product after processing through membrane evaporator to molecular distillation apparatus, separated；
8) surge tank and pre-filtering will be entered in the smart dimeric dibasic acid feeding pipeline switch filtering device obtained after separation；
9) the product press-in polycondensation vessel for obtaining pre-filtering, being simultaneously added dropwise ethylenediamine carries out polycondensation reaction；
10) product after through polycondensation reaction is filtered by defecator；
11) by filtration after product feeding granulating system in carry out pelletize, obtain product.
The step 1) used in vegetable oil acid be behenic acid or cotton oil acid one kind, the vegetable oil acid, described white
The mass ratio of native, described lithium carbonate and the water is 100：10：0.5：1.5；The reaction temperature of the polyreaction is 230
DEG C, the response time of polyreaction is (3-4) h；
The step 2) used in acidulant be phosphoric acid, the phosphoric acid and the product quality ratio after described polymerization are 3：
100；Reaction process is：Acidificatoin time is 1h, and reaction temperature is (150-180) DEG C；
The step 5) in add water temperature be (85-95) DEG C；
The step 6) vapourizing temperature be 160 DEG C；
The step 7) separation temperature be 230 DEG C, vacuum be below 30Pa；
The step 9) in dimeric dibasic acid after pre-filtering be 1 with the mol ratio of ethylenediamine:1, reaction includes following rank
Section：
8.1) dimeric dibasic acid heating period, heating-up temperature are (125-133) DEG C；
8.2) the Deca stage of ethylenediamine, time for adding are (25-35) min；
8.3) intensification polycondensation phase, temperature rise to (190-205) DEG C；
8.4) constant temperature stage, temperature control are (215-225) DEG C；The isothermal reaction time is (3-4) h；
8.5) decompression phase, is reduced pressure under 5mmHg.
During the present embodiment is by adding vegetable oil acid, hargil, lithium carbonate and water to polymeric kettle 101, carry out being polymerized instead
Should, and the heavy metal ion in adsorption reaction thing, then by polymerization after product press-in acidifying kettle in be acidified；By sheet frame pressure
Filter to acidifying after product filter, obtain rough dimeric dibasic acid, will rough dimeric dibasic acid be pressed into transfer kettle in kept in.Pass through
During rough dimeric dibasic acid is fed to centrifugal separating device, and mix with hot water, be centrifuged, the product after being centrifuged
Feed in membrane evaporator and molecular distillation apparatus successively, carry out distilling, separate, obtain smart dimeric dibasic acid.By obtained after distillation
Smart dimeric dibasic acid enters people's surge tank 702 and pre-filtering tank 704 in feeding to pipeline switch filtering device；The product that pre-filtering is obtained
Press-in polycondensation vessel 801, being simultaneously added dropwise ethylenediamine carries out polycondensation reaction；The product after through polycondensation reaction is entered by defecator again
Row is filtered；Pelletize is carried out in product feeding granulating system after by filtration, product is obtained.
The preferred embodiment of the invention is the foregoing is only, not in order to limit the invention, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of innovation and creation etc., should be included in the invention
Protection domain within.
Claims (6)
1. a kind of polyamide processing unit (plant), it is characterised in that：The processing unit (plant) is included contracting by technological process from front to back successively
Poly- device, defecator and granulating system；
The polycondensation device includes polycondensation vessel, Dropping feeder, the first pipe bundle condenser and the first airway；First tubulation
Condenser is connected with the internal cavities of the polycondensation vessel by first airway, the Dropping feeder include fluid reservoir,
Catheter and valve；One end of the catheter is connected with the discharging opening of the fluid reservoir, the other end of the catheter
Extend in the internal cavities of the polycondensation vessel, the valve is arranged on the catheter；In first pipe bundle condenser
The first deflection plate is provided with, first deflection plate is connected with the condensing tube in first pipe bundle condenser；The polycondensation vessel
Including polycondensation kettle and polycondensation kettle cover, the polycondensation kettle includes interior tank body and outer tank body, offers in the outer tank body
One oil-in and the first oil-out；Fluid is stored at cavity between the interior tank body and the outer tank body, the kettle cover
On offer the 4th charging aperture；The polycondensation device also includes automatic temp controller, and the automatic temp controller includes that temperature is passed
Sensor, circulating pipe, circulating pump, electronic valve and fuel reserve tank；The temperature sensor is arranged in the outer tank body, described is followed
Ring pump and the electronic valve are arranged on the circulating pipe；The second oil-in and second is offered on the fuel reserve tank
Oil-out, the circulating pipe include oil inlet pipe and flowline；First oil-in passes through institute with second oil-out
State oil inlet pipe to be connected, first oil-out is connected by the flowline with second oil-in；
The defecator includes filter, the second feed pipe, the first discharge nozzle and oil pipe；Second feed pipe includes
Two charging inner tubes and the second charging outer tube, first discharge nozzle include the first discharging inner tube and the first discharging outer tube, interior
Be stored with cavity between pipe outer tube corresponding thereto fluid；The second charging outer tube is connected with one end of the oil pipe
Logical, the first discharging outer tube is connected with the other end of the oil pipe；The first discharging inner tube and second charging
Inner tube is communicated with the internal cavities of the filter；
The granulating system includes granulating mechanism, particle conveying mechanism and pelletize classification from front to back successively according to technological process
Discharging mechanism；
The granulating mechanism includes that distributing device and actuating device, the distributing device include granulating cylinder and pellet device；Described
Pellet device includes that grain-cutter and power transmission shaft, the grain-cutter are set in the power transmission shaft, the main part of the power transmission shaft
Divide and be housed in the cavity of the granulating cylinder, the two ends of the power transmission shaft are extended outside the cavity of the granulating cylinder；Described make
Grain cylinder bottom offer several regularly arranged material holes, offer spout at the top of the granulating cylinder, the material hole, feed
Material mouth and the cavity intercommunication；The actuating device includes motor, first gear, second gear and chain, the chain
It is set in the first gear and second gear, the output shaft of the motor is connected with the first gear, described second
Gear is connected with the end of the power transmission shaft；
The particle conveying mechanism includes that the particle flowed out through the granulating cylinder is passed by conveyer device, the conveyer device
Send；The conveyer device includes drivewheel, driven pulley and drapery panel, and the drapery panel is set in the drivewheel and driven
On wheel；The conveyer device also includes that some pieces pat plate, and the plate that pats is fixed perpendicular to the conveying direction of the drapery panel
On lower layer mix feeding plate, and ensure that the length direction for patting plate is parallel with the width of the drapery panel；Described
The side of conveyer device is additionally provided with several automatic spraying devices；Gas sampling dress is additionally provided with above the conveyer device
Put, the waste gas collection device includes extractor fan and ventilation shaft；The extractor fan is arranged on the upper of the granulating cylinder
Side, one end of the ventilation shaft are connected with the extractor fan, and the other end of the ventilation shaft is parallel to the conveying dress
The length direction that puts extends to the top of the delivery device tip；The bottom of the ventilation shaft is provided with some row's ventilations
Eye；
The pelletize grading discharge mechanism include scraper, sieve, blanking funnel, hair-dryer, segregation apparatuss, the second discharge nozzle, wadding
Shape thing collection device and siphunculus more than second；The edge of a knife of the scraper is abutted on the drapery panel of the delivery device tip, institute
State the sieve opening for being arranged on the lower section of the scraper and being fixed on the blanking funnel, the bottom of the blanking funnel and institute
Siphunculus more than second is stated to connection；The arrival end of the siphunculus more than second is provided with the hair-dryer, the outlet of porous pipe line and institute
The entrance for stating segregation apparatuss is connected, and offers floccule outlet on the segregation apparatuss, and the bottom of the segregation apparatuss offers
Discharging opening；The floccule outlet is connected with the floccule collection device by the second passage；Second discharge nozzle
It is connected with the discharging opening of the segregation apparatuss；The discharge outlet of the segregation apparatuss is provided with side tool lock, second guide
The 5th elevator pump is provided with pipe.
2. a kind of polyamide processing unit (plant) according to claim 1, it is characterised in that：The polycondensation device also includes heat-insulated
Protective case, the polycondensation vessel are set in the thermal insulation protection set；The circulating pump is arranged on the oil inlet pipe, the electronics
Valve is arranged on the flowline；Power governor is additionally provided with the circulating pump；The outside of the thermal insulation protection set is arranged
There are non-contact inductive alarm device, the non-contact inductive alarm device to include infrared sensor, processor and acousto-optic
Alarm device；The outfan of the infrared sensor is connected with the input of the processor, the outfan of the processor with
The input of the acoustic-optic alarm is connected.
3. a kind of polyamide processing unit (plant) according to claim 1, it is characterised in that：The defecator also includes the 5th
Flange and the 6th flange, the second charging outer tube are connected by the 5th flange with one end of the oil pipe, described
First discharging outer tube is connected by the 6th flange with the other end of the oil pipe；Heating dress automatically is additionally provided with the oil pipe
Put, the heater includes temperature controller and heater, is additionally provided with portable power source interface on the heater；Described
Temperature controller includes display screen and control device, is provided with USB interface in the control system；The filter includes protecting
Protective case body and the filter assemblies being arranged on inside the protective housing.
4. a kind of polyamide processing unit (plant) according to claim 1, it is characterised in that：The actuating device also includes tensioning
Gear, the Tension gear are located between the first gear and the second gear and are arranged on the inner side of the chain；Institute
A diameter of 0.8mm in material hole is stated, on the outside of the spout, closure is provided with, the closure adopts spiral shell with the spout
Stricture of vagina connects；The granulating mechanism also includes that two secondary bracing frames, described two secondary bracing frames are oppositely arranged, two ends of the granulating cylinder
Portion is arranged on corresponding bracing frame, and the grain-cutter is set in the power transmission shaft in the shape of a spiral.
5. a kind of polyamide processing unit (plant) according to claim 1, it is characterised in that：The length for patting plate is not shorter than
The width of the drapery panel, the bottom for patting plate are coated with smooth layer；Weld respectively at the two ends for patting plate length direction
Fix bar is connected to, the bottom of the fix bar fixes on the ground；The automatic spraying device include shower nozzle, heat induction apparatuss,
Receiver, electric controller, water pump and water tank；The shower nozzle is fixed on the top of the drapery panel, the heat induction apparatuss
In order to test the heat for being distributed in that particle on drapery panel is distributed；The receiver is in order to receiving what the heat induction apparatuss sent
Signal, the electric controller receive the information that the receiver sends and drive the water pump to be drawn water.
6. a kind of polyamide processing unit (plant) according to claim 1, it is characterised in that：The mesh diameter that sieves is
0.6-1.1mm, the opening bore of the blanking funnel with described sieve equal in magnitude；The side tool lock include striker plate with
And handle of a knife, one end of the striker plate is hinged with the discharging opening of the segregation apparatuss, is provided with the other end of the striker plate
The handle of a knife；PCU Power Conditioning Unit is additionally provided with the blower fan, the PCU Power Conditioning Unit is transformator；The pelletize classification
Discharging mechanism also includes that two pieces of fixed plates, two pieces of fixed plates are oppositely arranged on the both sides of the end of the conveyer device；Per
Groove is provided with block fixed block, the two ends of the scraper are respectively welded screw rod, the screw rod is with the groove using cunning
Dynamic connection, is also arranged with two nuts on every screw rod, nut is close to the both sides of corresponding groove respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359061.1A CN104892931B (en) | 2015-06-25 | 2015-06-25 | A kind of polyamide processing unit (plant) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510359061.1A CN104892931B (en) | 2015-06-25 | 2015-06-25 | A kind of polyamide processing unit (plant) |
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| CN104892931B true CN104892931B (en) | 2017-03-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08259699A (en) * | 1995-03-22 | 1996-10-08 | Mitsubishi Heavy Ind Ltd | Apparatus for polymerizing reaction |
| CN1597730A (en) * | 2004-07-29 | 2005-03-23 | 四川大学 | Miniature condensation polymerization synthesis reaction device |
| CN201997332U (en) * | 2011-03-02 | 2011-10-05 | 骏马化纤股份有限公司 | Polymerization reaction kettle |
| EP2921223A1 (en) * | 2014-03-17 | 2015-09-23 | Uhde Inventa-Fischer GmbH | Device and method for the polycondensation of prepolymers while removing gaseous products and use for the continuous production of polyamides and/or their co-polymers |
-
2015
- 2015-06-25 CN CN201510359061.1A patent/CN104892931B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08259699A (en) * | 1995-03-22 | 1996-10-08 | Mitsubishi Heavy Ind Ltd | Apparatus for polymerizing reaction |
| CN1597730A (en) * | 2004-07-29 | 2005-03-23 | 四川大学 | Miniature condensation polymerization synthesis reaction device |
| CN201997332U (en) * | 2011-03-02 | 2011-10-05 | 骏马化纤股份有限公司 | Polymerization reaction kettle |
| EP2921223A1 (en) * | 2014-03-17 | 2015-09-23 | Uhde Inventa-Fischer GmbH | Device and method for the polycondensation of prepolymers while removing gaseous products and use for the continuous production of polyamides and/or their co-polymers |
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| Publication number | Publication date |
|---|---|
| CN104892931A (en) | 2015-09-09 |
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