CN104926645A - Dimer acid producing device - Google Patents
Dimer acid producing device Download PDFInfo
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- CN104926645A CN104926645A CN201510358228.2A CN201510358228A CN104926645A CN 104926645 A CN104926645 A CN 104926645A CN 201510358228 A CN201510358228 A CN 201510358228A CN 104926645 A CN104926645 A CN 104926645A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
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Abstract
The invention discloses a dimer acid producing device. The dimer acid producing device sequentially comprises a polymerization device, an acidizing kettle, a plate frame filter press, a transfer kettle, a centrifugal separation device, a film evaporator and a molecular distillation device from front to back according to a technological process, wherein the polymerization device comprises a polymerization kettle and a material lifting device; the transfer kettle comprises a transfer kettle shell and a contact type automatic alarming system; a second feeding opening is formed in the transfer kettle shell; the contact type automatic alarming device comprises a first liquid level sensor and an alarming system; the first liquid level sensor is hung in a cavity in the transfer kettle shell and sends out induction signals to drive the alarming system to send out alarming signals; and the centrifugal separation device comprises a centrifugal machine, a separating groove and a water draining tube. The dimer acid producing device has the advantages that the feeding efficiency is high, the height of liquid in the transfer kettle can be monitored automatically, the technology is simple, the phosphorous removal efficiency is high, and manufacturing cost of equipment is reduced.
Description
Technical field
The present invention relates to the preparation field of dimeracid, particularly relate to a kind of production equipment of dimeracid.
Background technology
Dimeracid, is often referred to dimer (fatty acid) yl, is a kind of mixture of complicated component, gains the name because main component contains two hydroxy-acid groups.Adopt unsaturated fatty acids, as oleic acid and linolic acid are obtained by mutual polymerization etc.Dimeracid has excellent thermostability, and can keep mobility in very wide temperature range.Dimeracid is mainly used as synthesizing polyamides at present, and about has half to be used to prepare hot melt adhesive in the neutral polyamide of synthesis, secondly for the production of ink.
The domestic method preparing dimeracid is clay catalytic method, and the method is existing two kinds of techniques: one is fatty acid methyl ester process, and with various fatty acid methyl ester for raw material, montmorillenite is catalyzer, with methyl alcohol deoxygenation.This technique advantage be that equipment is simple, easy to operate, quality product is desirable.But catalyst levels is comparatively large, and the purity requirement of methyl alcohol is higher.Another kind is lipid acid direct polymerization technique, and employing vegetable oil acid is raw material, and when filling nitrogen, after having reacted, decolouring, filtration, distill, obtain finished product in thin-film evaporator.This process recovery ratio is high, steady quality, is the main technique of domestic current production dimeracid.
Usually only there is heavy out and light phase export in its centrifugal separating device of dimeracid that current employing clay catalytic method is produced, after doing Oil-water separation, the interface of aqueous phase and oil phase is very thin, heavy out can take certain oil out of, and light phase export also can take certain water out of, be separated insufficient, cause dephosphorization efficiency by using low; And the production method of a kind of dimeracid described in the patent application of Patent publication No CN103012110 adopts two step method dephosphorization, first wash, then carry out secondary dephosphorization by centrifugal separating device.This method require plurality of devices with the use of, there is complex process, ineffective weak point.Moreover reactant reacts by being manually fed in polymeric kettle usually.It is large, omnidistance by Manual material feeding to there is working strength in this method, and the efficiency that causes feeding intake is low.In addition, rough dimeracid proceeds to transfer still when keeping in, and needs the height of the artificial on-line monitoring amount of proceeding to, in order to avoid proceed to excessive and overflow.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of efficiency that feeds intake high, automatically can monitor the height that proceeds to liquid in still and technique is simple, dephosphorization efficiency by using is high and reduce the production equipment of the dimeracid of equipment manufacturing cost.
The present invention adopts following technique means to solve the problems of the technologies described above: a kind of production equipment of dimeracid, comprises poly-unit, acidifying still, plate-and-frame filter press, transfer still, centrifugal separating device, thin-film evaporator and molecular distillation apparatus from front to back successively by technical process.
Described poly-unit comprises polymeric kettle and carries materials device, and described polymeric kettle comprises polymerization kettle and polymerization kettle cover, and described polymeric kettle covers and offers the first opening for feed.Described materials device of carrying comprises storage tank, the first lift pump and material guiding pipe.One end of described material guiding pipe is connected with described first opening for feed, and the other end of described material guiding pipe is connected with the discharge port of described storage tank, and described first lift pump is arranged on described material guiding pipe.
Described transfer still comprises transfer still shell body and contact automatic alarm system, and described transfer still shell body offers the second opening for feed, and described contact autoalarm comprises the first liquid level sensor and warning.Described first liquid level sensor is suspended in the internal cavities of described transfer still shell body, and described first liquid level sensor sends induced signal and drives described warning to send guard signal.
Described centrifugal separating device comprises whizzer, separator tank and water shoot; Described whizzer comprises housing, upper cover, rotary drum, light phase weir, heavy phase weir.Described rotary drum is arranged on the center of described housing, and described light phase weir is arranged on the open area at described rotary drum top, and described heavy phase weir is arranged on the bottom of described upper cover.Described housing offers the 3rd opening for feed, water-in, light phase export and heavy out.Described 3rd opening for feed and described water-in are positioned at the below of described light phase export and described heavy out.Cover on described and offer water port, described water port and described water shoot connect, and described water shoot are provided with the second lift pump.Described separator tank is arranged on the below of described heavy out, is provided with baffle plate in described separator tank, and the bottom of described baffle plate and the bottom of described separator tank inwall exist gap.
Preferably: the inwall of described rotary drum is offered and is equipped with temperature-control device, described temperature-control device comprises temperature detector, electronic heater and heating tube, the temperature test scope of described temperature detector is (50-100) DEG C.
Preferably: its temperature range of water flowed into through described water-in is (85-95) DEG C.
Preferably: described baffle plate is welded on the sidewall of described separator tank internal cavities, described separator tank is divided into the first cavity and the second cavity.
Preferably: described gap is (1-5) cm.
Preferably: described centrifugal separating device also comprises heavy phase vent pipe, described heavy phase vent pipe is provided with the 3rd lift pump, described heavy phase vent pipe one end be connected with described heavy out, the other end of described heavy phase vent pipe extends in described first cavity or extends in described second cavity, and described heavy phase vent pipe is connected with described heavy out.
Preferably: described separator tank is provided with the universal wheel that dynamic device stayed by band.
The present invention, by being added in polymeric kettle by vegetable oil acid, carclazyte, Quilonum Retard and water, carries out polyreaction, and the heavy metal ion in absorption reaction thing, then carry out acidifying by the product press-in acidifying still after polymerization; By plate-and-frame filter press, the product after acidifying is filtered, obtain rough dimeracid, keep in rough dimeracid press-in transfer still.By feeding rough dimeracid in centrifugal separating device, and mix with hot water, carry out centrifugation, the product after centrifugation feeds in thin-film evaporator and molecular distillation apparatus successively, carries out distilling, being separated, obtains product.
The invention has the advantages that: by traditional washing dephosphorization and centrifugation dephosphorization are combined, improve the efficiency of dephosphorization, simplify equipment, reduce the cost of equipment.Meanwhile, because its temperature of water added is (85-95) DEG C, be easy to vaporization and discharge.And be provided with temperature-control device, there is the effect of the temperature of auto-adjustment control rotary drum inside.By adopting the first lift pump to carry the raw material in materials-stored box in polymeric kettle, reducing the intensity that workman feeds intake, increasing work efficiency.By the first liquid level sensor being suspended in the internal cavities of described transfer still shell body, the height of liquid level in on-line monitoring transfer still.When the height turning liquid level in still is higher than setting range, send signal to warning by the first liquid level sensor, drive warning to send guard signal, prompting staff processes in time.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the embodiment of the present invention.
Fig. 2 is the structural representation of poly-unit in the embodiment of the present invention.
Fig. 3 is the structural representation of transfer still 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 filtration unit in the embodiment of the present invention.
Fig. 9 is the structural representation of distributor in the embodiment of the present invention.
Figure 10 is the structural representation of granulation transfer 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 granulation grading discharge mechanism in the embodiment of the present invention.
Figure 13 is the structural representation of granulation grading discharge mechanism in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, the present embodiment comprises poly-unit, acidifying still, plate-and-frame filter press, transfer still, centrifugal separating device, thin-film evaporator, molecular distillation apparatus, pipeline switch filtering device, polycondensation device, filtration unit and granulating system from front to back successively by technical process.
Described acidifying still, described plate-and-frame filter press, described thin-film evaporator and described molecular distillation apparatus are existing installation.
As shown in Figure 2, poly-unit comprises polymeric kettle 101 and carries materials device 102, and described polymeric kettle 101 comprises polymerization kettle 1011 and polymerization kettle cover 1012, described polymerization kettle cover 1012 offers the first opening for feed 1013.Described materials device 102 of carrying comprises storage tank 1021, first lift pump 1022 and the first material guiding pipe 1023.One end of described first material guiding pipe 1023 is connected with described first opening for feed 1013, and the other end of described first material guiding pipe 1023 is connected with the discharge port of described storage tank 1021, and described first lift pump 1022 is arranged on described first material guiding pipe 1023.
As shown in Figure 3, described transfer still comprises transfer still shell body 401 and contact automatic alarm system 402, described transfer still shell body 401 offers the second opening for feed 403, and described contact autoalarm 402 comprises the first liquid level sensor 4021 and warning 4022.Described first liquid level sensor 402 is suspended in the internal cavities of described transfer still shell body 401, and described first liquid level sensor 4021 sends induced signal and drives described warning 4022 to send guard signal.
As shown in Figure 4, described centrifugal separating device comprises whizzer, separator tank and water shoot 503.Described whizzer comprises housing 5011, upper cover 5012, rotary drum 5013, light phase weir 5014, heavy phase weir 5015.Described rotary drum 5013 is arranged on the center of described housing 5011, and described light phase weir 5014 is arranged on the open area at described rotary drum 5013 top, and described heavy phase weir 5015 is arranged on the bottom of described upper cover 5012.Described housing 5011 offers the 3rd opening for feed 5016, first water-in 5017, light phase export 5018 and heavy out 5019.Described 3rd opening for feed 5016 and described first water-in 5017 are positioned at the below of described light phase export 5018 and described heavy out 5019.Described upper cover 5012 offers the first row mouth of a river 50110, and the described first row mouth of a river 50110 connects with described water shoot 503, described water shoot 503 is provided with the second lift pump 504.Described separator tank 502 is arranged on the below of described heavy out 5019, is provided with baffle plate 5023 in described separator tank 502, and the bottom of described baffle plate 5023 and the bottom of described separator tank 502 inwall exist gap.
The inwall of described rotary drum 5013 is offered and is equipped with temperature-control device 5021, described temperature-control device comprises temperature detector 50211, electronic heater 50212 and heating tube 50213, and the temperature test scope of described temperature detector 50211 is (50-100) DEG C.Its temperature range of water flowed into through described first water-in 5017 is (85-95) DEG C, and described baffle plate 5023 is welded on the sidewall of described separator tank 502 internal cavities, described separator tank is divided into the first cavity 5021 and the second cavity 5022.Described gap is (1-5) cm, described centrifugal separating device 5 also comprises heavy phase vent pipe 505, described heavy phase vent pipe 505 is provided with the 3rd lift pump 506, described heavy phase vent pipe 505 one end be connected with described heavy out 5019, the other end of described heavy phase vent pipe 5023 extends in described first cavity 5021 and (can extend in described second cavity 5022).Described heavy phase vent pipe 505 is connected with described heavy out 5019, and described separator tank is provided with the universal wheel 5024 that dynamic device stayed by band.
As seen in figs. 5-6, described pipeline switch filtering device comprises the first feed-pipe 701, surge tank 702, siphunculus more than first 703, several hay tanks 704, pipe connecting 705 and return line 706.Described return line 706 is provided with the 4th lift pump 707.Described siphunculus more than first 703 is Y-tube, and described Y-tube is made up of vertical tube 7031 and transverse tube 7032.Described hay tank 704 comprises the first hay tank 7041 and the second hay tank 7042.Described vertical tube 7031 is connected with the discharge port of described surge tank 702, one end of described transverse tube 7032 is connected with described first hay tank 7041 by the first flange 708, and the other end of described transverse tube 7031 is connected with described second hay tank 7042 by the second flange 709.The feeding mouth of described pipe connecting 705 is connected with the discharge port of described first hay tank 7041 (also can be connected with the discharge port of the second hay tank 7042) by three-flange 7010, and the discharge port of described pipe connecting 705 is connected with described return line 706 by the 4th flange 7011.Described vertical tube 7031 is also provided with main valve 7033, is provided with point valve 7034 at the two ends of described transverse tube 7031, all flanges include fixed flange 7015, mounting flange 7016 and fastening piece 7017.Described fixed flange 7015 connects into entirety by described fastening piece 7017 with described mounting flange 7016, also be provided with gasket 7018 between described fixed flange 7015 and mounting flange 7016, the surface-coated of described gasket 7018 has waterproof, preservative coat (not shown in FIG.).
As shown in Figure 7, described polycondensation device comprises polycondensation vessel 801, Dropping feeder 802, first pipe bundle condenser 803 and the first airway 804.Described first pipe bundle condenser 803 is connected with the internal cavities of described polycondensation vessel 801 by described first airway 804, and described Dropping feeder 802 comprises container for storing liquid 8021, catheter 8022 and valve 8023.One end of described catheter 8022 is connected with the discharge port of described container for storing liquid 8021, and the other end of described catheter 8022 extends in the internal cavities of described polycondensation vessel 801, and described valve 8023 is arranged on described catheter 8022.Be provided with the first traverse baffle 805 in described first pipe bundle condenser 803, described first traverse baffle 805 is connected with the prolong in described first pipe bundle condenser 803; Described polycondensation vessel 801 comprises polycondensation kettle 8011 and polycondensation kettle cover 8012, and described polycondensation kettle 8011 comprises interior tank body 80111 and outer tank body 80112, described outer tank body 80112 offers the first oil-in and the first oil outlet.Cavity place between described interior tank body 80111 and described outer tank body 80112 stores fluid, described kettle cover 8012 offers the 4th opening for feed.Described polycondensation device 8 also comprises automatic temp controller 805, and described automatic temp controller 805 comprises temperature sensor 8051, circulating pipe, recycle pump 8053, electrovalve 8054 and fuel reserve tank 8055.Described temperature sensor 8051 is arranged in described outer tank body 80112, and described recycle pump 8053 and described electrovalve 8054 are all arranged on described circulating pipe.Described fuel reserve tank 8055 offers the second oil-in and the second oil outlet, described circulating pipe 8055 comprises oil inlet pipe 80551 and oil outlet pipe 80552.Described first oil-in is connected by described oil inlet pipe 80551 with described second oil outlet, and described first oil outlet is connected by described oil outlet pipe 80552 with described second oil-in.
Described polycondensation device also comprises thermal insulation protection cover 806, and described polycondensation vessel 801 is set in described thermal insulation protection cover 806.Described recycle pump 8053 is arranged on described oil inlet pipe 80551, and described electrovalve 8054 is arranged on described oil outlet pipe 80552.Described recycle pump 8053 is also provided with power regulator 8058.The arranged outside of described thermal insulation protection cover 806 has non-contact inductive warning device 807, and described non-contact inductive warning device 807 comprises infrared sensor, treater and acoustic-optic alarm.The output terminal of described infrared sensor is connected with the input terminus of described treater, and the output terminal of described treater is connected with the input terminus of described acoustic-optic alarm.
As shown in Figure 8, described filtration unit comprises strainer 901, second feed-pipe 902, first discharge nozzle 903 and oil pipe 904.Described second feed-pipe 902 comprises pipe 9021 and the second charging outer tube 9022 in the second charging, and described first discharge nozzle 903 comprises pipe 9031 and the first discharging outer tube 9032 in the first discharging, and the cavity place between interior pipe outer tube corresponding thereto stores fluid.Described second charging outer tube 9022 is connected with one end of described oil pipe 904, and described first discharging outer tube 9032 is connected with the other end of described oil pipe 904.In described first discharging, in pipe 9031 and described second charging, pipe 9021 all communicates with the internal cavities of described strainer 901.
Described filtration unit also comprises the 5th flange 905 and the 6th flange 906, described second charging outer tube 9022 is connected by described 5th flange 905 with one end of described oil pipe 904, and described first discharging outer tube 9032 is connected by the 6th flange 907 with the other end of described oil pipe 904.Described oil pipe 904 is also provided with automatic heating device 907, and described heating unit 907 comprises temperature regulator and well heater, and described well heater is also provided with portable power source interface 908.Described temperature regulator comprises display screen and control device, described control device is provided with USB interface 909.Described strainer 901 comprises protective housing 9011 and is arranged on the filter assemblies 9012 of described protective housing inside.
As shown in Figure 1, described granulating system comprises granulating mechanism, granulation transfer mechanism and granulation grading discharge mechanism from front to back successively according to technical process.
As shown in figs. 9-10, described granulating mechanism comprises distributor and transmission mechanism, and described distributor comprises granulating cylinder 100111 and pellet device 100112.Described pellet device 100112 comprises grain-cutter 1001121 and transmission shaft 1001122, described grain-cutter 1001121 is set in described transmission shaft 1001122, the main part of described transmission shaft 1001122 is housed in the cavity of described granulating cylinder 100111, and the two ends of described transmission shaft 1001122 are all extended outside the cavity of described granulating cylinder 100111.The bottom of described granulating cylinder 100111 offers several regularly arranged material holes 100113, and the top of described granulating cylinder 100111 offers spout 100114, described material hole 100113, described spout 100114 and described cavity intercommunication.Described transmission mechanism comprises motor 100122, first gear 100121, second gear 100123 and chain 100124, described chain 100124 is set on described first gear 100121 and the second gear 100123, the output shaft of described motor 100122 is connected with described first gear 100121, and described second gear 100123 is connected with the end of described transmission shaft 1001122.
Described transmission mechanism also comprises Tension gear 100125, and described Tension gear 100125 is between described first gear 100122 and described second gear 100123 and be arranged on the inner side of described chain 100124.The diameter in described material hole 100113 is 0.8mm, and the arranged outside of described spout 100114 has sealing cover 100115, and described sealing cover 100115 adopts with described spout 100114 and is threaded.Described granulating mechanism also comprises two secondary bracing frames 10013; described two secondary bracing frames 10013 are oppositely arranged; two ends of described granulating cylinder 100111 are arranged on corresponding bracing frame 10013, and described grain-cutter 1001121 is set in described transmission shaft 1001122 in the shape of a spiral.
As shown in figs. 10-11, described granulation transfer mechanism comprises e Foerderanlage, and the particle flowed out through granulating cylinder 100111 transmits by described e Foerderanlage.Described e Foerderanlage comprises motion-work wheel 100211, follow-up pulley 100212 and drapery panel 100213, and described drapery panel 100213 is set on described motion-work wheel 100211 and follow-up pulley 100212.Described e Foerderanlage also comprises some pieces and pats plate 100214, the described plate 100214 that pats is fixed on lower layer mix feeding plate 100213 perpendicular to the throughput direction of described drapery panel, and the length direction patting plate 100214 described in ensureing parallels with the width of described drapery panel 100213.Several automatic spraying devices 10022 are also provided with in the side of described e Foerderanlage.The top of described e Foerderanlage is also provided with waste gas collection device, and described waste gas collection device comprises extractor fan 100231 and ventilator trunk 100232.Described extractor fan 100231 is arranged on the top of described granulating cylinder 100111, one end of described ventilator trunk 100232 is connected with described extractor fan 100231, and the length direction that the other end of described ventilator trunk 100231 is parallel to described e Foerderanlage extends to the top of described delivery device tip.The bottom of described ventilator trunk 100232 is provided with some row's ventilation holes 100233.
The described length patting plate 100214 is not shorter than the width of described drapery panel 100213, described in pat plate 100214 bottom be coated with smooth layer (not shown in FIG.).The described two ends patting plate 100214 length direction are welded with fixed link (not shown in FIG.) respectively, and the bottom of described fixed link fixes on the ground.Described automatic spraying device 10022 comprises shower nozzle 100221, heat inductor block, receiver, electric controller, water pump 100222 and water tank 100223.Described shower nozzle 100221 is fixed on the top of described drapery panel 100213, and described heat inductor block is distributed in order to test the heat that on drapery panel 100213, particle distributes.The signal that described receiver sends in order to accept described heat inductor block, described pneumoelectric controller accepts information that described receiver sends and drives described water pump 100222 to draw water by motor.
As illustrated by figs. 12-13, described granulation grading discharge mechanism comprise scraper 10031, sieve 10032, lower funnel 10033, blower 10034, tripping device 10035, second discharge nozzle 10036, floss collection device 10037 and siphunculus more than second 10038.The edge of a knife of described scraper 10031 abuts on the drapery panel 100213 of described delivery device tip, described sieving 10032 is arranged on the below of described scraper 10031 and is fixed on the opening end of described lower funnel 10033, the bottom of described lower funnel 10033 with described siphunculus more than second 10038 to being communicated with.The inlet end of described siphunculus more than second 10038 is provided with described blower 10034, the outlet of described porous pipe line is connected with the entrance of described tripping device 10035, described tripping device 10035 offers floss outlet, the bottom of described tripping device 10035 offers discharge port.Described floss outlet 10035 is connected with described floss collection device 10037 by described second material guiding pipe 10036.Described second discharge nozzle 10036 is connected with the discharge port of described tripping device 10035.The discharge outlet of described tripping device 10035 is provided with side tool lock 100310, and described second material guiding pipe 10036 is provided with the 5th lift pump 100311.
Described sieve 10032 mesh diameter be (0.6-1.1) mm, the opening end bore of described lower funnel 10033 and described sieve 10032 equal and opposite in direction.Described side tool lock 100310 comprises blocking material plate 1003101 and handle of a knife 1003102, one end of described blocking material plate 1003101 and the discharge port of described tripping device 10035 hinged, the other end of described blocking material plate 1003101 is provided with described handle of a knife 1003102.Described blower fan 10034 is also provided with Power Conditioning Unit 100341, and described Power Conditioning Unit 100341 is transformer.Described granulation grading discharge mechanism also comprises two pieces of retaining plates 10039, and described two pieces of retaining plates 10039 are oppositely arranged on the both sides of the end of described e Foerderanlage.Every block fixed block 10039 is provided with groove 100391, the two ends of described scraper 10031 are welded with screw rod 100311 respectively, described screw rod 100311 adopts with described groove 100391 and is slidably connected, every root screw rod 100311 is also arranged with two nuts 100312, nut is close to the both sides of corresponding groove respectively.
The production method of the present embodiment comprises the following steps:
1) vegetable oil acid, carclazyte, Quilonum Retard and water are added in polymeric kettle, carry out polyreaction;
2) acidifying is carried out by the product press-in acidifying still after polymerization;
3) by plate-and-frame filter press, the product after acidifying is filtered, obtain rough dimeracid;
4) keep in rough dimeracid press-in transfer still;
5) rough dimeracid is fed in centrifugal separating device, and mix with hot water, carry out centrifugation;
6), in the product feeding thin-film evaporator after centrifugation, distill, removing steam;
7) product after thin-film evaporator process is fed in molecular distillation apparatus, be separated;
8) surge tank and pre-filtering is entered by the smart dimeracid feeding pipeline switch filtering device obtained after separation;
9) product press-in polycondensation vessel pre-filtering obtained, drips quadrol simultaneously and carries out polycondensation;
10) by filtration unit, the product after polycondensation is filtered;
11) carry out granulation by the product feeding granulating system after filtration, obtain product.
Described step 1) in the vegetable oil acid that the uses one that is behenic acid or cotton oil acid, the mass ratio of described vegetable oil acid, described carclazyte, described Quilonum Retard and described water is 100:10:0.5:1.5; The temperature of reaction of described polyreaction is 230 DEG C, and the reaction times of polyreaction is (3-4) h;
Described step 2) in the souring agent that uses be phosphoric acid, described phosphoric acid and product quality after described polymerization are than being 3:100; Reaction process is: acidificatoin time is 1h, and temperature of reaction is (150-180) DEG C;
Described step 5) in add water temperature be (85-95) DEG C;
Described step 6) vaporization temperature be 160 DEG C;
Described step 7) separation temperature be 230 DEG C, vacuum tightness is below 30Pa;
Described step 9) in dimeracid after pre-filtering be 1:1 with the mol ratio of quadrol, react and comprise following several stages:
8.1) the dimeracid heating phase, Heating temperature is (125-133) DEG C;
8.2) the dropping stage of quadrol, time for adding is (25-35) min;
8.3) intensification polycondensation phase, temperature rises to (190-205) DEG C;
8.4) the constant temperature stage, temperature controls as (215-225) DEG C; The isothermal reaction time is (3-4) h;
8.5) decompression phase, reduces pressure under 5mmHg.
The present embodiment, by being added in polymeric kettle 101 by vegetable oil acid, carclazyte, Quilonum Retard and water, carries out polyreaction, and the heavy metal ion in absorption reaction thing, then carry out acidifying by the product press-in acidifying still after polymerization; By plate-and-frame filter press, the product after acidifying is filtered, obtain rough dimeracid, keep in rough dimeracid press-in transfer still.By feeding rough dimeracid in centrifugal separating device, and mix with hot water, carry out centrifugation, the product after centrifugation feeds in thin-film evaporator and molecular distillation apparatus successively, carries out distilling, being separated, obtains smart dimeracid.The smart dimeracid feeding obtained after distillation is entered people's surge tank 702 and pre-filtering tank 704 to pipeline switch filtering device; The product press-in polycondensation vessel 801 pre-filtering obtained, drips quadrol simultaneously and carries out polycondensation; By filtration unit, the product after polycondensation is filtered again; Carry out granulation by the product feeding granulating system after filtration, obtain product.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; the any amendment done within all spirit in the invention and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in the invention.
Claims (7)
1. a production equipment for dimeracid, comprises acidifying still, plate-and-frame filter press, thin-film evaporator and molecular distillation apparatus; It is characterized in that: described production equipment also comprises poly-unit, transfer still and centrifugal separating device, described poly-unit, acidifying still, plate-and-frame filter press, transfer still, centrifugal separating device, thin-film evaporator and molecular distillation apparatus set gradually from front to back by technical process;
Described poly-unit comprises polymeric kettle and carries materials device, and described polymeric kettle comprises polymerization kettle and polymerization kettle cover, and described polymeric kettle covers and offers the first opening for feed; Described materials device of carrying comprises storage tank, the first lift pump and material guiding pipe; One end of described material guiding pipe is connected with described first opening for feed, and the other end of described material guiding pipe is connected with the discharge port of described storage tank, and described first lift pump is arranged on described material guiding pipe;
Described transfer still comprises transfer still shell body and contact automatic alarm system, and described transfer still shell body offers the second opening for feed, and described contact autoalarm comprises the first liquid level sensor and warning; Described first liquid level sensor is suspended in the internal cavities of described transfer still shell body, and described first liquid level sensor sends induced signal and drives described warning to send guard signal;
Described centrifugal separating device comprises whizzer, separator tank and water shoot; Described whizzer comprises housing, upper cover, rotary drum, light phase weir, heavy phase weir; Described rotary drum is arranged on the center of described housing, and described light phase weir is arranged on the open area at described rotary drum top, and described heavy phase weir is arranged on the bottom of described upper cover; Described housing offers the 3rd opening for feed, water-in, light phase export and heavy out; Described 3rd opening for feed and described water-in are positioned at the below of described light phase export and described heavy out; Cover on described and offer water port, described water port and described water shoot connect, and described water shoot are provided with the second lift pump; Described separator tank is arranged on the below of described heavy out, is provided with baffle plate in described separator tank, and the bottom of described baffle plate and the bottom of described separator tank inwall exist gap.
2. the production equipment of a kind of dimeracid according to claim 1, it is characterized in that: the inwall of described rotary drum is offered and is equipped with temperature-control device, described temperature-control device comprises temperature detector, electronic heater and heating tube, and the temperature test scope of described temperature detector is (50-100) DEG C.
3. the production equipment of a kind of dimeracid according to claim 1, is characterized in that: its temperature range of water flowed into through described water-in is (85-95) DEG C.
4. the production equipment of a kind of dimeracid according to claim 1, is characterized in that: described baffle plate is welded on the sidewall of described separator tank internal cavities, described separator tank is divided into the first cavity and the second cavity.
5. the production equipment of a kind of dimeracid according to claim 1, is characterized in that: described gap is (1-5) cm.
6. the production equipment of a kind of dimeracid according to claim 1, it is characterized in that: described centrifugal separating device also comprises heavy phase vent pipe, described heavy phase vent pipe is provided with the 3rd lift pump, described heavy phase vent pipe one end be connected with described heavy out, the other end of described heavy phase vent pipe extends in described first cavity or extends in described second cavity, and described heavy phase vent pipe is connected with described heavy out.
7. the production equipment of a kind of dimeracid according to claim 1, is characterized in that: described separator tank is provided with the universal wheel that dynamic device stayed by band.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670774A (en) * | 2021-07-25 | 2021-11-19 | 安庆市虹泰新材料有限责任公司 | Batching detection device and method for dimer acid production |
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