CN206315791U - A kind of production equipment for being used to prepare blocked isocyanate - Google Patents
A kind of production equipment for being used to prepare blocked isocyanate Download PDFInfo
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- CN206315791U CN206315791U CN201621425330.6U CN201621425330U CN206315791U CN 206315791 U CN206315791 U CN 206315791U CN 201621425330 U CN201621425330 U CN 201621425330U CN 206315791 U CN206315791 U CN 206315791U
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Abstract
A kind of production equipment for being used to prepare blocked isocyanate of the utility model, belongs to blocked isocyanate preparing technical field.The utility model includes reactor unit, cycling element, discharging unit and storage element, and reactor main body bottom is connected through discharging unit with storage element；Cycling element includes circulation air inlet pipe, circulating pump, circulation nozzle and air shooter, circulation air inlet pipe is arranged at the top of reactor main body, circulation air inlet pipe at the top of condensing container by air shooter with being connected, and the bottom of condensing container is connected through circulating pump with circulation nozzle；The circulation nozzle is arranged at the bottom in reactor main body.The utility model is by the production equipment of reactor unit, cycling element, storage element and being integrally formed of discharging unit, so that course of reaction, storage process and output procedure constitute a complete production process, the reaction efficiency of course of reaction and the delivery efficiency of output procedure are improved, production efficiency is improved.
Description
Technical field
The utility model belongs to blocked isocyanate preparing technical field, is in particular used to prepare there is provided one kind
The production equipment of blocked isocyanate.
Background technology
Isocyanates is the general name of the various esters of isocyanic acid, if with the quantitative classification of-NCO group, including monoisocyanates
R-N=C=O and diisocyanate O=C=N-R-N=C=O and polyisocyanates etc..Monoisocyanates is organic synthesis
Important intermediate, can be made into a series of carbamate insecticides, bactericide, herbicide, be also used for improve plastics, knit
The water proofing property of thing, leather etc..
The end-blocking report of NCO is started from 1949, and Petersen reports the envelope of free isocyanate groups first
The research of endization[1].Then, Wicks et al. has carried out substantial amounts of research to blocked isocyanate[2-6], and be discussed in detail a variety of different
The sealer of cyanate[2].1980, Japanese scholars Long Position is harvested also made detailed commentary to blocked isocyanate chemistry[3]。
Blocked polyurethane is that isocyanate groups are closed the obtained product of agent end-blocking.By closing, it can be made single
Component product.Certain temperature and it is other under the conditions of, the regeneration of isocyanate groups in occlusive polyurethane is crosslinked anti-
Should, generate heat-curable urethane[1]。
Blocked isocyanate has been widely used in preparing the crosslinking of coating, aqueous polyurethane, modified thermoplastic resin
Agent etc., is used as the coating of enamel-covered wire, fabric, leather, paper, wood metal, plastics etc., adhesive, covering material, coating
Deng；It also is used as printing and dyeing and paper making additive, the anti-creasing agent of fabric and anti-piping compound, the adhesive of synthetic fabrics and rubber and prevents
Delamination agent etc..Particularly in rubber such as tire, the production of adhesive tape, the composition of blocked isocyanate and soluble epoxide
Dipping process is carried out, the intensity of fibrous material can be improved.
Blocked isocyanate is a kind of aqueous impregnation material, and the intensity of fibrous material can be improved by dipping process.It is existing
It is typically to add isocyanate-monomer, the reacted synthesis of sealer in a kettle. in some blocked isocyanate preparation process
Afterwards, blocked isocyanate is prepared, the reaction product prepared in reactor again by being delivered in holding vessel.Due to not having
Continuously, suitable for the production equipment of blocked isocyanate so that a variety of reaction masses are local superfluous during reaction, no
Only reaction rate is slower, and reacts the not thorough of progress.After the completion of reaction, easily block during product conveying,
So that transfer efficiency is relatively low；So that blocked isocyanate continuity of production process is poor, low production efficiency, closing is seriously limited different
The whole process production efficiency of cyanate.
Through retrieval, a series of improvement has been done to reactor in the prior art, but has often been only limitted to reactor, still
It is difficult to the improvement broken through on the whole.Innovation and creation it is entitled：A kind of novel intelligent reactor (patent No.：
201420619971.X, the applying date：2014.10.24)[7], including reaction kettle body, kettle cover, agitator, steam circulating pipe, kettle cover
Top sets reductor；Agitator is connected by agitating shaft below the decelerator；Steamed in reaction kettle body outside wall surface around setting
Vapour cycle pipe and this circulation pipe upper/lower terminal each extend respectively to one section of pipeline section outside kettle, the pipeline section in top
One steam circulation tube inlet is set, and the pipeline section in bottom sets a steam circulating pipe to export, in reaction kettle body bottom
Circulate and a condensation-water drain is set on pipeline section, steam circulating pipe exit therein sets a pressure valve, the reactor
Body upper surface opens up two magnetic valves successively；The Motionless electromagnetic valve III on steam circulating pipe entrance pipeline section.Although it is to reactor
Based Intelligent Control is realized, production efficiency is improved；But be not still improved in production system whole process so that reaction
Product delivery efficiency is relatively low, and limits the efficiency of whole production process.
In addition, innovation and creation are：A kind of oxidation reaction apparatus (patent No. of synthesizing glyoxalic acid：ZL201320240331.3,
The day for announcing：2013.10.09)[8], the device include reactor, external cooler, Matter Transfer pump, tail gas absorber and air inducing
Machine, the reactor is provided with air intake, feed(raw material)inlet and heating jacket, and the reactor passes through institute with the external cooler
Matter Transfer pump group is stated into circulation loop, the reactor, tail gas absorber and air-introduced machine are sequentially connected by pipeline.The patent
Application improves product yield and quality, but it is relatively low to production efficiency in course of reaction, and this problem has to be solved.
Bibliography：
[1] [J] polyurethane industrials, 2004,17 (4) are brief talked in Gu Jiyou, the closing of high Zhenhua isocyanates:10-13.
[2]Wicks Z W.Blocked isocyanates[J].Progress in Organic Coatings,
1975,3(1):73-99.
[3]Wicks Z W.New developments in the field of blocked isocyanates[J]
.Progress in Organic Coatings,1981,9(1):3-28.
[4]Wicks D A,Wicks Z W.Blocked isocyanates III:Part A.Mechanisms and
chemistry[J].Progress in Organic Coatings,1999,36(3):148-172.
[5]Wicks D A,Wicks Z W.Blocked isocyanates III:Part B:Uses and
applications of blocked isocyanates[J].Progress in Organic Coatings,4001,41
(1):1-83.
[6] Long Position harvests ト systems solid [J] the color materials association's will (Japanese) of イ ソ シ ア ネ mono-, 1980,53 (4):676.
[7] a kind of novel intelligent reactors of oil of SPC Bao Chun Machinery Co., Ltd.s, China：ZL201420619971.X
[P].2015-03-18.
[8] a kind of oxidation reaction apparatus of synthesizing glyoxalic acid of Hubei Hongyuan Pharmaceutical Co., Ltd, China：
ZL201320240331.3[P].2013-10-09
Utility model content
1. the utility model technical problem to be solved
The utility model for blocked isocyanate continuity of production process in the prior art it is poor, it is less efficient the problem of,
There is provided it is a kind of be used to prepare the production equipment of blocked isocyanate, by by reactor unit, cycling element, storage element and going out
The production equipment of being integrally formed of material unit, can improve reaction in blocked isocyanate production process, the company of output procedure
Continuous property, improves production efficiency；Further, accelerate to stir by cycling element, the mixing effect of reaction mass can be improved, promoted
Enter material to be well mixed；Further, by conveying return duct, it is to avoid reaction product is deposited in pipeline, improves product
Delivery efficiency.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of production equipment for being used to prepare blocked isocyanate of the present utility model, including reactor unit, circulation list
Member, discharging unit and storage element, described reactor unit include reactor main body, and reactor main body bottom is through discharging unit
It is connected with storage element, discharging pump is provided with discharging unit, discharging pump is used to the product in reactor main body being delivered to storage
Memory cell；Described cycling element includes circulation air inlet pipe, circulating pump, circulation nozzle and air shooter, and described circulation is entered
Tracheae is arranged at the top of reactor main body, and circulation air inlet pipe at the top of condensing container by air shooter with being connected, and condensation is held
The bottom of device is connected through circulating pump with circulation nozzle；The circulation nozzle is arranged at the bottom in reactor main body, and circulation nozzle
Level height be less than stirring vane bottom level height.
Described reactor unit includes reactor main body and rabbling mechanism, and described reactor main body bottom is provided with out
Material mouth, the reaction mass that rabbling mechanism is used in stirred autoclave body lumen.
Described discharging unit includes discharging pump, reflux pump and product delivery pipe；Described discharging opening and discharging pump inlet
It is connected, discharging pump is connected through product delivery pipe with storage element, conveying return duct is provided with product delivery pipe, conveys return duct
It is connected through reflux pump with bypass outlet；Described bypass outlet is arranged in reactor main body.
Inner chamber return duct is provided with the pump housing inner chamber of described discharging pump, inner chamber return duct is connected with reflux pump.
Described product delivery pipe is provided with pumping hole return duct close to the side of discharging pump, the pumping hole return duct and reflux pump
It is connected.
Described circulation nozzle is set diagonally downward, and the angle of circulation nozzle and horizontal direction is a, 30 °≤a≤75 °.
Described cycling element also includes circulating line, and the circulating line is arranged at the bottom of reactor main body, described
Circulating line is connected with the pump discharge of circulating pump, and circulation nozzle is uniformly arranged on the circumference of circulating line.
The lateral part of described air shooter is provided with shockproof bellows, and the vertical portion of air shooter is provided with
Heighten bellows.
Described rabbling mechanism includes stirring motor, machine shaft and stirring vane, and described stirring motor is installed on instead
The top of kettle main body is answered, stirring motor bottom is provided with machine shaft, and the machine shaft is stretched into inside reactor main body, paddle
Piece is arranged at the bottom of machine shaft.
Described reactor unit also includes illuminating lamp, and reactor main body top is provided with universal socket, and illuminating lamp is installed
In on universal socket, illuminating lamp can be rotated in universal socket.
3. beneficial effect
The technical scheme provided using the utility model, compared with existing known technology, with following remarkable result：
(1) a kind of production equipment for being used to prepare blocked isocyanate of the utility model, single by reactor unit, circulation
The production equipment of member, storage element and being integrally formed of discharging unit so that course of reaction, storage process and output procedure are constituted
One complete production process, improves the reaction efficiency of course of reaction and the delivery efficiency of output procedure, and ensure that and produced
The continuity of reaction, output procedure in journey, improves production efficiency；
(2) a kind of production equipment for being used to prepare blocked isocyanate of the utility model, circulation nozzle is arranged at reactor
Bottom in main body；The pump discharge of wherein circulating pump is connected with circulation nozzle, reactant gas or solvent gas condensation after by
Circulating pump, and be passed through by the bottom of the inner chamber of circulation nozzle penetrating reactor main body, the mixing effect of reaction mass is improved, is promoted
Enter material to be well mixed, it is to avoid reaction is local superfluous, the contact area of reaction is increased, so as to improve reaction rate；
(3) a kind of production equipment for being used to prepare blocked isocyanate of the utility model, product delivery pipe is single close to storage
The side of member is provided with the reaction product deposited in conveying return duct, product delivery pipe and is delivered to by conveying return duct through reflux pump
Bypass outlet, and be delivered to by bypass outlet in reactor main body inner chamber, the backflow of the product in output procedure is realized, is prevented
Product accumulation is in product delivery pipe and the junction of holding vessel, so as to improve the transfer efficiency of product；
(4) a kind of production equipment for being used to prepare blocked isocyanate of the present utility model, when reaction sealed isocyanates
After reaction terminates, the cooling effect of condensing container is increased, by being circulated to reactant in reactor, reaction can be improved
The cooling velocity of product, so as to improve cooling effectiveness, cooling rear enclosed isocyanates can be discharged rapidly, so as to improve
Reaction efficiency；
(5) a kind of production equipment for being used to prepare blocked isocyanate of the present utility model, the transverse part of air shooter
Set up separately and be equipped with shockproof bellows, shockproof bellows can bear and absorb the undulatory displacements that light body is brought, and effectively prevent that gas is defeated
Pipe is sent to be damaged because of gas pulsation；
(6) a kind of production equipment for being used to prepare blocked isocyanate of the present utility model, in the vertical of air shooter
Part, which is provided with, heightens bellows, counteracts condensing container and is stretched power or compression stress, is effectively prevented from condensing container damage
Bad, can also effectively ensure the whole height of cycling element will highly be adapted with reactor main body；
(7) a kind of production equipment for being used to prepare blocked isocyanate of the present utility model, mixes the stirring vane position of mechanism
Inside reactor main body, stirring vane is used to stir material, and stirring motor drives stirring vane to rotate by machine shaft, and
Stirring reaction material, promotes material to be well mixed, accelerates the mass transport process of course of reaction, improves the reaction effect of synthetic reaction
Rate, stirring vane is arc, and blade tip is bent upwards, and stirring vane is bent downwardly, and the stirring vane of arc, which is increased, to be connect
Contacting surface is accumulated, and improves mixing effect, is accelerated to stir by cycling element, can be improved the mixing effect of reaction mass, promote thing
Material is well mixed；
(8) a kind of production equipment for being used to prepare blocked isocyanate of the utility model, expects to set on the pump housing inner chamber of pump
There is inner chamber return duct, inner chamber return duct is connected with reflux pump, and the reaction product deposited in pump housing inner chamber is conveyed by inner chamber return duct
To bypass outlet, and enter in reactor main body inner chamber, it is achieved thereby that the backflow of pump housing inner chamber, it is to avoid reaction product it is heavy
Product, improves delivery efficiency.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram for being used to prepare the production equipment of blocked isocyanate of the present utility model；
Fig. 2 is reactor unit of the present utility model and cycling element fit structure schematic diagram；
Fig. 3 is the circulating line of embodiment 2 and the cooperation schematic diagram of circulation nozzle；
Fig. 4 is the reactor unit and cycling element fit structure schematic diagram of embodiment 4；
Fig. 5 is the circulating line of embodiment 5 and the cooperation schematic diagram of circulation nozzle；
Fig. 6 is the overall structure diagram of embodiment 7 and 8.
Label declaration in schematic diagram：
100th, reactor unit；110th, reactor main body；111st, discharging opening；112nd, universal socket；113rd, glass lamp shade；
114th, reactor is covered；120th, rabbling mechanism；121st, stirring motor；122nd, machine shaft；123rd, stirring vane；124th, seal
Circle；125th, blade tip；126th, poke hole；130th, illuminating lamp；131st, lamp handle；
200th, cycling element；210th, air inlet pipe is circulated；211st, collapsible tube；212nd, air inlet end；220th, condensing container；221、
Stop air chamber；230th, condensate pipe；231st, it is condensed out water pipe；232nd, water inlet pipe is condensed；240th, circulating pump；241st, pump inlet；
242nd, pump discharge；250th, circulation nozzle；260th, air shooter；261st, shockproof bellows；262nd, bellows is heightened；270th, it is annular
Pipeline；271st, pipeline dividing plate.
300th, discharging unit；310th, discharging pump；311st, pump housing inner chamber；312nd, inner chamber return duct；313rd, inner chamber return valve；
320th, reflux pump；321st, bypass outlet；330th, heat preservation component；331st, it is incubated liquid import；332nd, insulation liquid outlet；333rd, it is incubated liquid
Valve；340th, product delivery pipe；341st, pumping hole return duct；342nd, return duct is conveyed；343rd, pumping hole return valve；344th, conveying backflow
Valve；
400th, storage element；410th, holding vessel；420th, tank body heat-insulation layer.
Embodiment
Hereafter the detailed description to exemplary embodiment of the present utility model with reference to accompanying drawing, and the one of accompanying drawing formation description
Part, shows the enforceable exemplary embodiment of the utility model as an example in the figure.Although these exemplary realities
Apply example to be described in sufficient detail to enable those skilled in the art to implement the utility model, it is to be understood that it can be realized
His embodiment and can various changes can be made to the utility model in the case where not departing from spirit and scope of the present utility model.Hereafter
More detailed description to embodiment of the present utility model is not limited to required scope of the present utility model, and only
In order to be illustrated and do not limit the characteristics of to the utility model and feature description, it is of the present utility model to propose to perform
Best mode, and be sufficient so that those skilled in the art and can implement the utility model.Therefore, scope of the present utility model only by
Appended claims are limited.
Hereafter detailed description of the present utility model and example embodiment can be more fully understood with reference to accompanying drawing, wherein this reality
Identified with new element and feature by reference.
Embodiment 1
As depicted in figs. 1 and 2, a kind of production equipment for being used to prepare blocked isocyanate of the present embodiment, including reaction
Kettle unit 100, cycling element 200, discharging unit 300 and storage element 400；As shown in figure 1, reactor unit 100 is included instead
Kettle main body 110 is answered, the bottom of reactor main body 110 is connected through discharging unit 300 with storage element 400, set on discharging unit 300
There is discharging pump 310, discharging pump 310 is used to the product in reactor main body 110 being delivered to storage element 400.So that reacting
Journey, storage process and output procedure constitute a complete production process, can improve in blocked isocyanate production process
Reactions steps, the continuity for exporting step, improve production efficiency.
Wherein reactor unit 100 includes reactor main body 110 and rabbling mechanism 120, and the inside of reactor main body 110 is set
There is inner chamber, the bottom of reactor main body 110 is provided with discharging opening 111, and discharging opening 111 is located at the bottommost of inner chamber, closes isocyanide
Acid esters is prepared after completion, and material is discharged by discharging opening 111.And the center of discharging opening 111 and the axis of rotation of rabbling mechanism 120
On same straight line, Stirring mechanism 120, and be engaged and can prevent with discharging unit 300 at a slow speed during discharging
Materials from bonding, improves discharging speed.
Rabbling mechanism 120 of the present utility model includes stirring motor 121, machine shaft 122 and stirring vane 123, described
Stirring motor 121 be installed on the top of reactor main body 110, the bottom of stirring motor 121 is provided with machine shaft 122, reacts
The axis hole of machine shaft 122 is offered in kettle main body 110, the machine shaft 122 stretches into reactor main body by above-mentioned axis hole
Inside 110, sealing ring 124 is provided between machine shaft 122 and axis hole, sealing ring 124 is used for machine shaft 122 and axis hole
Sealing so that prevent air enter reactor in；Above-mentioned stirring vane 123 is arranged at the bottom of machine shaft 122, stirring
The stirring vane 123 of mechanism 120 is located inside reactor main body 110, and stirring vane 123 is used to stir material.Stirring motor 121
Stirring vane 123 is driven to rotate by machine shaft 122, and stirring reaction material, promote material to be well mixed, quickening was reacted
The mass transport process of journey, improves the reaction efficiency of synthetic reaction.Stirring vane 123 is arc, and blade tip 125 is bent up
Song, the bottom of stirring vane 123 is bent downwardly, and the stirring vane 123 of arc increases contact area；And set on stirring vane 123
Being equipped with reactant in poke hole 126, whipping process can circulate in poke hole 126, improve mixing effect, improve reaction effect
Rate.During discharging, the bottom of stirring vane 123 is bent downwardly, the center of discharging opening 111 and the rotary shaft of rabbling mechanism 120
The heart is on same straight line, rotating agitation blades 123 at a slow speed, and material forms vortex centers in the bottom of stirring vane 123, so that plus
The discharging speed of fast material.
In addition, after the reaction of reaction sealed isocyanates terminates, the cooling effect of condensing container 220 is increased, by seeking pair
Reactant is circulated in reactor, can improve the cooling velocity of reaction product, so that cooling effectiveness is improved, after cooling
Blocked isocyanate can be discharged rapidly, so as to improve reaction efficiency.
The cycling element 200 of the present embodiment includes circulation air inlet pipe 210, condensing container 220, condensate pipe 230, circulating pump
240th, circulation nozzle 250 and air shooter 260；Described circulation air inlet pipe 210 is arranged at the top of reactor main body 110,
Gas phase in course of reaction can be entered in cycling element 200, the circulation air inlet pipe 210 by circulation air inlet pipe 210 is provided with receipts
The draw 211, circulation air inlet pipe 210 is connected by collapsible tube 211 with air shooter 260, and collapsible tube 211 is used to prevent air-flow ripple
It is dynamic, improve airflow stability.Circulation air inlet pipe 210 is connected by air shooter 260 with the top of condensing container 220, and gas
Shockproof bellows 261 is provided with delivery pipe 260, what deserves to be explained is：The lateral part of air shooter 260 is provided with shockproof
Bellows 261, because the fed distance of air shooter 260 is longer, air shooter 260 is difficult to be integrally formed, often
There are multiple pipelines to be formed by connecting, in order to improve the observing effect in cyclic process, air shooter 260 often uses glass material
Matter, so that convenient observation；But, gas by the inner chamber of reactor main body 110 when entering air shooter 260, due to gas
Fluctuation is larger, often has very big vibrations in the junction of pipeline, if using being fastenedly connected, easily causing pipeline in connection
Place is damaged, and shockproof bellows 261 can bear and absorb the undulatory displacements that light body is brought；Effectively prevent air shooter 260 because
Gas pulsation and be damaged.
Further, since the whole height of cycling element 200 will be adapted with the height of reactor main body 110, but installing
During inevitably easily cause cycling element 200 height be more than or less than reactor main body 110 height, make
The height for obtaining cycling element 200 is difficult to be adapted with the height of reactor main body 110, causes circulation nozzle 250 to be difficult to effectively pacify
Correspondence position loaded on the bottom of reactor main body 110；In addition, importantly, the shockproof bellows 261 of gas pulsation passes through flexibility
Although connection improves the shockproof effect of the junction of air shooter 260, it is to avoid air shooter 260 is damaged because of vibrations
It is bad, but inevitably apply tensile force or compression stress, and tensile force or pressure to condensing container 220 during vibrations
Contracting power is continually changing, and promotes condensing container 220 to be easily damaged；And the present embodiment passes through in the vertical of air shooter 260
Part, which is provided with, heightens bellows 262, counteracts condensing container 220 and is stretched power or compression stress, is effectively prevented from condensation
Container 220 is damaged, and can also effectively be ensured the whole height of cycling element 200 and to be adapted with the height of reactor main body 110,
With prominent progress.
In addition, the top of condensing container 220 is provided with stop air chamber 221, the diameter for stopping air chamber 221 is conveyed between gas
The diameter of pipe 260 and condensing container 220, that is, stop the diameter with diameter greater than air shooter 260 of air chamber 221, and stop gas
The diameter of room 221 is less than the diameter of condensing container 220, stops air chamber 221 and is made up of elastomeric material, and stopping can in air chamber 221
The certain gas of storage, when gas pulsation in the inner chamber of reactor main body 110, stopping the gas of the storage of air chamber 221 can subtract
Small gas pulsation, reduces gas pulsation to condensing container 220, so as to prevent damage of the gas pulsation to condensing container 220.
The condensate pipe 230 of the present embodiment is arranged inside condensing container 220, reactant gas or solvent gas condensation
Variation liquid is condensed in container 220, condensate pipe 230 is that reactant gas or solvent gas condensation provide low-temperature receiver, described
The top that water pipe 231 is arranged at condensing container 220 is condensed out, condensation water inlet pipe 232 is arranged at the bottom of condensing container 220.
The bottom of the condensing container 220 of the present embodiment is connected through circulating pump 240 with circulation nozzle 250；Wherein condensing container
220 bottom is connected with the pump inlet 241 of circulating pump 240, and described circulation nozzle 250 is arranged in reactor main body 110
Bottom；The pump discharge 242 of wherein circulating pump 240 is connected with circulation nozzle 250, reactant gas or solvent gas condensation after by
Circulating pump 240, and the bottom of the inner chamber by the penetrating reactor main body 110 of circulation nozzle 250, improve the stirring effect of reaction mass
Really, material is promoted to be well mixed, it is to avoid reaction is local superfluous, the contact area of reaction is increased, so as to improve reaction rate.
The level height of above-mentioned circulation nozzle 250 is less than the level height of the bottom of stirring vane 123, stirring vane 123
For arc, and blade tip 125 is bent upwards the mixing effect for enhancing top material, and circulation nozzle 250 is arranged in paddle
The bottom of piece 123, enhances the mixing effect of bottom material；In addition, circulation nozzle 250 is set diagonally downward, and circulation nozzle
250 be a, 30 °≤a≤75 °, preferably 60 ° of the present embodiment, the circulation nozzle 250 being obliquely installed, enhancing with the angle of horizontal direction
Impact of the circulation nozzle 250 to the intracavity bottom of reactor main body 110, mixing effect, promote intracavity bottom material stirring, and promote
Make material homogeneous reaction, improve reaction yield.
Discharging unit 300 of the present utility model includes discharging pump 310, reflux pump 320 and product delivery pipe 340；Discharging opening
111 are connected with the import of discharging pump 310, and the outlet of discharging pump 310 is connected with product delivery pipe 340, and discharging pump 310 is through product delivery pipe
340 are connected with the holding vessel 410 of storage element 400, and product delivery pipe 340 be provided with close to the side of storage element 400 it is defeated
Send flow tube 342 back to, conveying return duct 342 is connected through reflux pump 320 with bypass outlet 321, and bypass outlet 321 is arranged at reactor
In main body 110.The reaction product deposited in product delivery pipe 340 is delivered to through reflux pump 320 by conveying return duct 342 and flowed back out
Mouth 321, and be delivered to by bypass outlet 321 in the inner chamber of reactor main body 110, the backflow of the product in output procedure is realized,
Product accumulation is prevented in product delivery pipe 340 and the junction of holding vessel 410, so as to improve the transfer efficiency of product.
In addition, by being provided with inner chamber return duct 312, inner chamber return duct 312 on the pump housing inner chamber 311 of discharging pump 310
It is connected with reflux pump 320.This is due to discovery during production practices, and the viscosity of blocked isocyanate is larger, easily bond,
Deposition, equally easily blocks in the pump housing inner chamber 311 of discharging pump 310, reduces product delivery efficiency；Using the present embodiment
Scheme, the reaction product deposited in pump housing inner chamber 311 is delivered to bypass outlet 321 by inner chamber return duct 312, and enters reaction
In the inner chamber of kettle main body 110, it is achieved thereby that the backflow of pump housing inner chamber 311, it is to avoid the deposition of reaction product, output effect is improved
Rate.
Be worth further illustrating is：Product delivery pipe 340 is provided with pumping hole return duct close to the side of discharging pump 310
341, the pumping hole return duct 341 is connected with reflux pump 320, and the reaction product deposited in the exit of discharging pump 310 is flowed back by pumping hole
Pipe 341 is delivered to bypass outlet 321, and enter in the inner chamber of reactor main body 110, it is to avoid reaction product goes out in discharging pump 310
Deposited at mouthful.
Above-mentioned storage element 400 includes holding vessel 410, and holding vessel 410 is used to store reaction product, holding vessel 410
Tank body heat-insulation layer 420 is provided with outside tank body, tank body heat-insulation layer 420 is used to maintain the temperature in holding vessel 410, for needing to protect
The product of temperature, can be effectively incubated to product.
Embodiment 2
As shown in figure 3, the substance be the same as Example 1 of the present embodiment, difference is：Cycling element 200 also includes
Circulating line 270, the circulating line 270 is arranged at the bottom of reactor main body 110, described circulating line 270 and circulating pump
240 pump discharge 242 is connected, and circulation nozzle 250 is uniformly arranged on the circumference of circulating line 270, and circulation nozzle 250 is set
4-8 are equipped with, so as to improve the mixing mixing effect of material so that the material mixing in the whole inner chamber of reactor main body 110
Uniformly.
Embodiment 3
As shown in Fig. 2 the substance be the same as Example 1 of the present embodiment, difference is：Described reactor unit
100 also include illuminating lamp 130, and the top of reactor main body 110 is provided with universal socket 112, and illuminating lamp 130 is installed on universal socket
On 112, illuminating lamp 130 can be rotated in universal socket 112, be provided with lamp handle 131 on described illuminating lamp 130, the lamp
Handle 131 is used for the irradiating angle of adjusting illuminating lamp 130.
By rotating or rotating lamp handle 131, it can make it that illuminating lamp 130 is rotated on universal socket 112, from
And the irradiating angle of adjusting illuminating lamp 130, it is ensured that operating personnel can effectively observing response kettle main body 110 reaction process.
In addition, what deserves to be explained is：Glass lamp shade 113 is provided with illuminating lamp 130, glass lamp shade 113 is used for will illumination
Lamp 130 and the internal insulation of reactor main body 110, on the one hand prevent that gas from entering in reactor main body 110, thus avoid air with
Reactant is reacted, and reactant on the other hand can be prevented to the erosion damage of illuminating lamp 130.
Embodiment 4
As shown in figure 4, the substance be the same as Example 1 of the present embodiment, its difference is：In reactor main body 110
Portion is provided with reactor capping 114, and the top of reactor capping 114 is provided with arc, the bottom of circulation air inlet pipe 210 be provided with into
Gas end 212, described air inlet end 212 is set to arc, and the arc of air inlet end 212 covers 114 arc with reactor
It is engaged, the arc of air inlet end 212 is parallel with the arc that reactor covers 114, and air-flow can be pushed up from reactor main body 110
The reactor in portion covers 114 edges and flows into inlet end portion 212, and enter in circulation air inlet pipe 210, it is to avoid air-flow is in inlet end
Airflow fluctuation occurs at the position of portion 212, so as to avoid the fluctuation of air-flow, it is to avoid cycling element 200 occurs vibrations and damaged.
Embodiment 5
As shown in figure 5, the substance of the present embodiment is with implementation 1, its difference is：Cycling element 200 also includes
Circulating line 270, circulating line 270, circulation nozzle 250 is uniformly arranged on the circumference of circulating line 270；The circulating line
270 be arranged in the bottom of reactor main body 110, and circulating line 270 and be provided with pipeline dividing plate 271, and pipeline dividing plate 271 enters
Mouth is connected with pump discharge 242, and pipeline dividing plate 271 is arranged between the import of circulation nozzle 250 and pipeline dividing plate 271, it is to avoid cold
Liquid after solidifying directly flows into circulation nozzle 250 by pump discharge 242, promotes condensed liquid uniform by each circulation spray
Mouth 250 sprays into the inner chamber of reactor main body 110, so that the air-flow for also promoting top is smoothly flowed into circulation air inlet pipe 210.
Embodiment 6
The substance be the same as Example 1 of the present embodiment, difference is：The outer wrap of product delivery pipe 340 has insulation
Part 330, the heat preservation component 330 is used to be incubated product delivery pipe 340, and the heat preservation component 330 goes out close to discharging pump 310
The side of mouth is provided with insulation liquid import 331, and the opposite side of heat preservation component 330 is provided with insulation liquid outlet 332, and insulation liquid is by being incubated
Liquid import 331 enters heat preservation component 330, and is flowed out by insulation liquid outlet 332, and insulation liquid can be maintained in product output procedure
Temperature.Described insulation liquid can be water or conduction oil, be turned down when by the temperature for being incubated liquid, and heat preservation component 330 can also be
Export cooled product during product.
Embodiment 7
As shown in fig. 6, the substance be the same as Example 1 of the present embodiment, difference is：Set on inner chamber return duct 312
Inner chamber return valve 313 is equipped with, the inner chamber return valve 313 is used to control inner chamber return duct 312, when pump housing inner chamber 311 is deposited
When, inner chamber return valve 313 can be opened again so that the product in pump housing inner chamber 311 is flowed back, it is to avoid deposition.
Pumping hole return valve 343 is provided with pumping hole return duct 341, pumping hole return valve 343 is used to control pumping hole return duct
341, when product deposition occurs in pumping hole, opening pumping hole return valve 343 makes reactant be flowed back, it is to avoid product deposition is in discharging
The pumping hole of pump 310.
Conveying return valve 344 is provided with conveying return duct 342, conveying return valve 344 is used to control conveying return duct
342, when product deposition occurs in conveying return duct 342, opening conveying return valve 344 makes reactant be flowed back, avoids deposition,
Improve the delivery efficiency of product.
Embodiment 8
As shown in fig. 6, the substance be the same as Example 6 of the present embodiment, difference is：Set in insulation liquid import 331
It is equipped with insulation liquid valve 333, the opening for the insulation liquid that insulation liquid valve 333 is used to control in heat preservation component 330 or closing, it is possible to
The flow of control insulation liquid, so as to control the temperature in product output procedure.
A kind of production of blocked isocyanate of the present utility model, output technique,
(1) raw material is added
In the inner chamber for the reactor main body 110 that isocyanate-monomer, sealer and solvent are added to reactor unit 100,
And reactor main body 110 is heated, it is warming up to 80-100 DEG C；Sealer is caprolactam, and solvent is toluene.
(2) synthetic reaction
Open rabbling mechanism 120, under the driving of machine shaft 122, the thing in the reactor main body 110 of stirring vane 123
Material is stirred reaction, reacts 1 hour；
The circulating pump 240 of cycling element 200 is opened, under the driving of circulating pump 240, gaseous reactant and solvent are by following
Ring air inlet pipe 210 enters in condensing container 220, and gaseous reactant and solvent are condensed in condensing container 220, and in circulation
The bottom of the inner chamber of reactor main body 110 is sprayed under the driving of pump 240 by circulation nozzle 250, reactor main body 110 will be sticked to
The reactant of inwall is well mixed, and reaction obtains blocked isocyanate after terminating；
(3) blocked isocyanate is exported
Discharging opening 111 is opened, blocked isocyanate enters discharging unit 300 by discharging opening 111, in the drive of discharging pump 310
Dynamic lower blocked isocyanate is delivered in the holding vessel 410 of storage element 400 by product delivery pipe 340, and blocked isocyanate is defeated
Go out closing discharging pump 310 after finishing；The closing deposited in conveying return valve 344, product delivery pipe 340 is opened in output procedure different
Cyanate is delivered to bypass outlet 321 by conveying return duct 342 through reflux pump 320, prevents that blocked isocyanate is gathered in product
Delivery pipe 340 and the junction of holding vessel 410；Open the closing isocyanic acid deposited in inner chamber return valve 313, pump housing inner chamber 311
Ester is delivered to bypass outlet 321 by inner chamber return duct 312；Open what is deposited in pumping hole return valve 343, the exit of discharging pump 310
Blocked isocyanate is delivered to bypass outlet 321 by pumping hole return duct 341.
The utility model is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can be
Various modifications and variations are carried out in the case of not departing from the scope of the present utility model being defined by the following claims.Detailed retouches
State should be to be considered only as with accompanying drawing it is illustrative and not restrictive, if there is any such modification and modification, then
They are fallen within the range of the utility model described here.In addition, background technology is intended to illustrate grinding for this technology
It was found that shape and meaning, it is no intended to limit the utility model or the application and application field of the present utility model.
More specifically, although exemplary embodiment of the present utility model has been described herein, the utility model is simultaneously
These embodiments are not limited to, but are repaiied including the process that those skilled in the art can be appreciated that according to detailed description above
Change, omit, any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.Right
It is required that in restriction can widely be explained according to the language used in claim, and be not limited in foregoing detailed description
In or the example that describes during this application is implemented, these examples are considered as nonexcludability.For example, in the utility model
In, term " preferably " not exclusively, here it means that " preferably, but be not restricted to that ".It is in office where method or
Any step enumerated in process claims can perform and be not limited to the order proposed in claim in any order.
Therefore, scope of the present utility model should be determined only by appended claims and its legal equivalents, rather than by giving above
The explanation and example that go out is determined.
Claims (10)
1. a kind of production equipment for being used to prepare blocked isocyanate, it is characterised in that：Including reactor unit (100), circulation
Unit (200), discharging unit (300) and storage element (400), described reactor unit (100) include reactor main body
(110), reactor main body (110) bottom is connected through discharging unit (300) with storage element (400), and discharging unit is set on (300)
Discharging pump (310) is equipped with, discharging pump (310) is used to the product in reactor main body (110) being delivered to storage element (400)；
It is defeated that described cycling element (200) includes circulation air inlet pipe (210), circulating pump (240), circulation nozzle (250) and gas
Pipe (260) is sent, described circulation air inlet pipe (210) is arranged at the top of reactor main body (110), and circulation air inlet pipe (210) is led to
Cross and be connected at the top of air shooter (260) and condensing container (220), the bottom of condensing container (220) is through circulating pump (240) with following
Ring spray mouth (250) is connected；The circulation nozzle (250) is arranged at the bottom in reactor main body (110), and circulation nozzle (250)
Level height be less than stirring vane (123) bottom level height.
2. a kind of production equipment for being used to prepare blocked isocyanate according to claim 1, it is characterised in that：Described
Reactor unit (100) includes reactor main body (110) and rabbling mechanism (120), and described reactor main body (110) bottom is set
It is equipped with discharging opening (111), the reaction mass that rabbling mechanism (120) is used in stirred autoclave main body (110) inner chamber.
3. a kind of production equipment for being used to prepare blocked isocyanate according to claim 2, it is characterised in that：Described
Discharging unit (300) includes discharging pump (310), reflux pump (320) and product delivery pipe (340)；Described discharging opening (111) with
Discharging pump (310) import is connected, and discharging pump (310) is connected through product delivery pipe (340) with storage element (400), product conveying
Conveying return duct (342) is provided with pipe (340), conveying return duct (342) is through reflux pump (320) and bypass outlet (321) phase
Even；Described bypass outlet (321) is arranged in reactor main body (110).
4. a kind of production equipment for being used to prepare blocked isocyanate according to claim 3, it is characterised in that：Described
Inner chamber return duct (312), inner chamber return duct (312) and reflux pump are provided with the pump housing inner chamber (311) of discharging pump (310)
(320) it is connected.
5. a kind of production equipment for being used to prepare blocked isocyanate according to claim 4, it is characterised in that：Described
Product delivery pipe (340) is provided with pumping hole return duct (341) close to the side of discharging pump (310), the pumping hole return duct (341) with
Reflux pump (320) is connected.
6. a kind of production equipment for being used to prepare blocked isocyanate according to claim any one of 1-5, its feature exists
In：Described circulation nozzle (250) is set diagonally downward, and the angle of circulation nozzle (250) and horizontal direction is a, 30 °≤a
≤75°。
7. a kind of production equipment for being used to prepare blocked isocyanate according to claim 6, it is characterised in that：Described
Cycling element (200) also includes circulating line (270), and the circulating line (270) is arranged at the bottom of reactor main body (110),
Described circulating line (270) is connected with the pump discharge (242) of circulating pump (240), and circulation nozzle (250) is uniformly arranged at ring
On the circumference of shape pipeline (270).
8. a kind of production equipment for being used to prepare blocked isocyanate according to claim 7, it is characterised in that：Described
The lateral part of air shooter (260) is provided with shockproof bellows (261), and the vertical portion of air shooter (260) is set
Heighten bellows (262).
9. a kind of production equipment for being used to prepare blocked isocyanate according to claim 8, it is characterised in that：Described
Rabbling mechanism (120) includes stirring motor (121), machine shaft (122) and stirring vane (123), described stirring motor
(121) top of reactor main body (110) is installed on, stirring motor (121) bottom is provided with machine shaft (122), the motor
Reactor main body (110) inside is stretched into rotating shaft (122), and stirring vane (123) is arranged at the bottom of machine shaft (122).
10. a kind of production equipment for being used to prepare blocked isocyanate according to claim 9, it is characterised in that：It is described
Reactor unit (100) also include illuminating lamp (130), reactor main body (110) top is provided with universal socket (112), shines
Bright lamp (130) is installed on universal socket (112), and illuminating lamp (130) can be rotated in universal socket (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425330.6U CN206315791U (en) | 2016-12-23 | 2016-12-23 | A kind of production equipment for being used to prepare blocked isocyanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425330.6U CN206315791U (en) | 2016-12-23 | 2016-12-23 | A kind of production equipment for being used to prepare blocked isocyanate |
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| Publication Number | Publication Date |
|---|---|
| CN206315791U true CN206315791U (en) | 2017-07-11 |
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ID=59259450
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425330.6U Active CN206315791U (en) | 2016-12-23 | 2016-12-23 | A kind of production equipment for being used to prepare blocked isocyanate |
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| CN (1) | CN206315791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492731A (en) * | 2016-12-23 | 2017-03-15 | 马鞍山科英合成材料有限公司 | A kind of production equipment for preparing blocked isocyanate |
| CN107597056A (en) * | 2017-11-09 | 2018-01-19 | 曹恩康 | A kind of recycling reactor of exothermic reaction reaction heat |
-
2016
- 2016-12-23 CN CN201621425330.6U patent/CN206315791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492731A (en) * | 2016-12-23 | 2017-03-15 | 马鞍山科英合成材料有限公司 | A kind of production equipment for preparing blocked isocyanate |
| CN107597056A (en) * | 2017-11-09 | 2018-01-19 | 曹恩康 | A kind of recycling reactor of exothermic reaction reaction heat |
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