CN107029622A - Urethane raw high-precision measuring mixing equipment - Google Patents
Urethane raw high-precision measuring mixing equipment Download PDFInfo
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- CN107029622A CN107029622A CN201710447165.7A CN201710447165A CN107029622A CN 107029622 A CN107029622 A CN 107029622A CN 201710447165 A CN201710447165 A CN 201710447165A CN 107029622 A CN107029622 A CN 107029622A
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- major ingredient
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- cylinder barrel
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- 238000002156 mixing Methods 0.000 title claims abstract description 76
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 150
- 239000004615 ingredient Substances 0.000 claims abstract description 44
- 238000003860 storage Methods 0.000 claims abstract description 20
- 230000001502 supplementing effect Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 43
- 239000006052 feed supplement Substances 0.000 claims description 32
- 230000004087 circulation Effects 0.000 claims description 30
- 238000007600 charging Methods 0.000 claims description 25
- 238000007664 blowing Methods 0.000 claims description 19
- 230000001839 systemic circulation Effects 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 10
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 36
- 239000000126 substance Substances 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
- B01F35/7164—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components the containers being placed in parallel before contacting the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
Abstract
The present invention relates to chemical field, more particularly to a kind of urethane raw high-precision measuring mixing equipment, its difference is：It includes auxiliary material barreled feed supplementing device, auxiliary material buffer storage tank, auxiliary material metering cylinder system, major ingredient feeding device, batch mixing tank arrangement, material stock tank arrangement；The auxiliary material barreled feed supplementing device, auxiliary material buffer storage tank, auxiliary material metering cylinder system are sequentially connected, and the auxiliary material metering cylinder barrel and major ingredient feeding device are all connected to the arrival end of batch mixing tank arrangement, and the material stock tank arrangement is connected to the port of export of batch mixing tank arrangement.The invention enables the proportion speed of each component raw material, measuring accuracy are high and stably.
Description
Technical field
The present invention relates to chemical field, more particularly to a kind of urethane raw high-precision measuring mixing equipment.
Background technology
With the fast development of current China's polyurethane industries among others, to the foam process formula and measuring accuracy of urethane raw
It is required that more and more higher, how on mixing equipment, can accurately, stably control the mixed proportion of various component raw materials, and energy
Improve the automaticity of equipment, the problem exactly inquired into jointly in polyurethane industries among others instantly.
Conventional mixing equipment is that the various micro auxiliary materials in raw material are carried out by electronic scale and proportioning valve or flowmeter
Metering, because the measuring accuracy of electronic scale is often affected by the external environment larger, such as extraneous vibration, environment temperature, wet
Degree etc., easily causes that electronic scale measuring accuracy is unstable in process of production, especially for the auxiliary material metering of accuracy to 1g, one
As the resolution ratio of electronic scale be extremely difficult to, even if using the electronic scale of day sane level, in the industrial production, workshop condition also is difficult to full
Foot is required；Using the metering of flowmeter, can by the air and material viscosity in pipeline, the change of density and change, flowmeter
Often there is deviation in show value and actual metered value, so as to influence batch mixing precision；By both the above metering method to poly- ammonia
Micro auxiliary material in ester raw material is measured, and can all have that measuring accuracy is unstable, is so blended the urethane raw come and is matched somebody with somebody
Than often inaccurate, so as to influence the foaming effect of raw material, substantial amounts of wastage of material is caused.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art to be set there is provided a kind of urethane raw high-precision measuring batch mixing
It is standby so that the proportion speed of each component raw material, measuring accuracy are high and stably.
To solve above technical problem, the technical scheme is that：Urethane raw high-precision measuring mixing equipment, its
It is characterised by, the equipment includes：The auxiliary material barreled feed supplementing device for being stored and being supplied to auxiliary material；Cylinder system is measured to auxiliary material
Carry out the auxiliary material buffer storage tank of quick feed supplement；The auxiliary material metering cylinder system measured to auxiliary material；Major ingredient is stored
With the major ingredient feeding device of supply；Major ingredient is measured and major ingredient and auxiliary material are mixed to obtain the mixing tank of compound
Device；And compound is stored and circulation conveying material stock tank arrangement；
The auxiliary material barreled feed supplementing device, auxiliary material buffer storage tank, auxiliary material metering cylinder system are sequentially connected, the auxiliary material metering
Cylinder barrel and major ingredient feeding device are all connected to the arrival end of batch mixing tank arrangement, and the material stock tank arrangement is connected to batch mixing tank arrangement
The port of export；
The auxiliary material buffer storage tank includes：Multiple holding vessels, the charging for starting charging start liquid-level switch, for stopping
The liquid level limit inferior switchs of charging, the liquid level limit inferior switch for system alarm, the first Ventilated cap located at holding vessel, connection
Holding vessel outlet at bottom end and auxiliary material measure the first blowing pipeline of cylinder system；
The auxiliary material metering cylinder system includes：Multiple cylinder barrel inlet valves of the first blowing pipeline are connected to, cylinder barrel is connected to and enters
Expect valve and bottom is for cylindric multiple metering cylinder barrels of pyramidal structure, located at the second Ventilated cap for measuring cylinder barrel and for controlling
The liquid-level switch of feed supplement height, for measuring liquid level change to obtain differential pressure pickup that auxiliary material calculates the weight, be connected to
The second blowing pipeline at metering cylinder barrel outlet at bottom end, the baiting valve of the second blowing pipeline of connection and batch mixing tank arrangement, it is connected to
Measuring cylinder barrel outlet at bottom end is used for the test valve that Accurate Calibration differential pressure pickup detects parameter.
By above scheme, the auxiliary material barreled feed supplementing device includes：It is multiple to be used to store the auxiliary material bucket of different auxiliary material, pass through
Feed supplement pump that suction tube and auxiliary material bucket be connecteds, the check valve located at feed supplement pump discharge end, the feed supplement valve for being connected to holding vessel, connect
The conveying pipeline of check valve and feed supplement valve.
By above scheme, the major ingredient feeding device includes：It is multiple to be used to store the basic material barrel of major ingredient, be connected to basic material barrel
Charge pump, be connected to charge pump feeding tube, connection feeding tube and batch mixing tank arrangement charging valve.
By above scheme, the batch mixing tank arrangement includes：It is in turn connected to form mixing tank, the batch can outlet control of closed-loop path
Valve processed, first circulation delivery pump, the first three-way connector, first circulation valve, first circulation pipeline and static mixer, in addition to
It is used to measuring the electronic scale of major ingredient weight, for major ingredient and the first agitating device of auxiliary material stirring mixing, with the located at mixing tank
Transfer pipe and turn material valve that one three-way connector is sequentially connected, described turn of material valve is connected to material stock tank arrangement, the blending tank
It is all connected with charging valve and baiting valve.
By above scheme, the material stock tank arrangement includes being connected to transfer pipe for storing the tank body of compound, being located at
The liquid level gauge of tank body, for improving compound temperature control uniformity and preventing the second agitating device of layering, go out located at tank base
The filter at mouthful end, the second circulation delivery pump being connected with filter, pass through partial circulating pipeline and second circulation conveying pump discharge
Partial circulating valve and heat exchanger that one end and tank body are sequentially connected, the pump discharge other end is connected second is conveyed with second circulation
Three-way connector, the systemic circulation valve being all connected with by systemic circulation pipeline and the second three-way connector and tank body and tank body and Re Jiao
The temperature conditioning unit that parallel operation is all connected with；Second three-way connector is additionally coupled to work batch can.
By above scheme, the equipment also includes refrigerated type air dryer.
By above scheme, the auxiliary material barreled feed supplementing device also includes being connected to the regulation that feed supplement pump is used to adjust air inflow
Valve group.
By above scheme, the height of the multiple metering cylinder barrel is identical, with a variety of different diameters.
By above scheme, the metering cylinder barrel highly be 1000mm, diameter be respectively 32mm, 50mm, 65mm, 80mm,
100mm、250mm。
By above scheme, the multiple holding vessel has two kinds of specifications, and its volume is respectively 80L and 150L.
Prior art is contrasted, the present invention can be measured and mixed according to preset value to major ingredient and auxiliary material, dispensing is flexible, from
Dynamicization degree is high；Measure auxiliary material when, employ auxiliary material buffer storage tank come to measure cylinder barrel quick feed supplement there is provided auxiliary material
The stability of metering, additionally uses auxiliary material metering cylinder system and carries out high-precision measuring to the weight of auxiliary material, wherein
High-precision differential pressure pickup by detect the liquid level of holding vessel change can be accurate to 0.1g to obtain be used for batch mixing
Auxiliary material weight, and by the test valve installed in metering cylinder barrel bottom can Accurate Calibration differential pressure pickup gravity detection ginseng
Number, so as to further improve the measuring accuracy of auxiliary material so that the proportion speed of each component raw material, measuring accuracy are high and stably.
Brief description of the drawings
Fig. 1 is overall structure diagram of the embodiment of the present invention；
Fig. 2 amplifies schematic cross-section for Fig. 1 local A；
Fig. 3 amplifies schematic cross-section for Fig. 1 local B；
Fig. 4 amplifies schematic cross-section for Fig. 1 Local C；
Fig. 5 amplifies schematic cross-section for Fig. 1 local D；
Wherein：1- auxiliary material barreled feed supplementing devices（101- auxiliary materials bucket, 102- suction tubes, 103- feed supplements pump, 104- check valves, 105-
Conveying pipeline, 106- feed supplements valve, 107- regulation valve groups）, 2- auxiliary material buffer storage tanks（201- holding vessels, 202- chargings start liquid level
Switch, 203- liquid levels limit inferior switchs, 204- liquid levels limit inferior switch, the Ventilated caps of 205- first, 206- the first blowing pipelines）、
3- auxiliary materials measure cylinder system（301- cylinder barrels inlet valve, 302- metering cylinder barrel, the Ventilated caps of 303- second, 304- liquid-level switches,
305- differential pressure pickups, the second blowings of 306- pipeline, 307- baiting valves, 308- test valves）, 4- major ingredient feeding devices（401- master
Charging basket, 402- charge pumps, 403- feeding tubes, 404- charging valves）, 5- batch mixing tank arrangements（501- mixing tanks, 502- electronic scales,
The agitating devices of 503- first, 504- batch cans discharge control valve, 505- first circulations delivery pump, the three-way connectors of 506- first,
507- first circulations valve, 508- first circulations pipeline, 509- static mixers, 510- turn material valve, 511- transfer pipes）, 6- deposits
Charging bucket device（601- tank bodies, 602- liquid level gauges, the agitating devices of 603- second, 604- filters, 605- second circulations delivery pump,
606- temperature conditioning units, 607- partial circulatings pipeline, 608- partial circulatings valve, 609- heat exchangers, the three-way connectors of 610- second, 611-
Systemic circulation pipeline, 612- systemic circulations valve, 613- pressure switches）, 7- refrigerated type air dryers.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
Refer to Fig. 1, the present invention is urethane raw high-precision measuring mixing equipment, it include carrying out auxiliary material storage with
The auxiliary material barreled feed supplementing device 1 of supply；The auxiliary material buffer storage tank 2 of buffering is stored and pressure is balanced to auxiliary material；
The auxiliary material metering cylinder system 3 measured to auxiliary material；The major ingredient feeding device 4 for being stored and being supplied to major ingredient；To major ingredient
Measured and mix major ingredient and auxiliary material to obtain the batch mixing tank arrangement 5 of compound；And compound is stored
With the material stock tank arrangement 6 of circulation conveying；The auxiliary material barreled feed supplementing device 1, auxiliary material buffer storage tank 2, auxiliary material metering cylinder barrel system
System 3 is sequentially connected, and the auxiliary material metering cylinder barrel 302 and major ingredient feeding device 4 are all connected to the arrival end of batch mixing tank arrangement 5, institute
State the port of export that material stock tank arrangement 6 is connected to batch mixing tank arrangement 5.
With reference to Fig. 1, Fig. 2 and Fig. 3, the auxiliary material barreled feed supplementing device 1 includes multiple auxiliary materials for being used to store different auxiliary material
Bucket 101, by suction tube 102 and auxiliary material barrel 101 feed supplement pumps 103 being connected, the check valve 104 located at the port of export of feed supplement pump 103,
It is connected to the conveying pipeline 105 of the feed supplement valve 106, connection check valve 104 and feed supplement valve 106 of auxiliary material buffer storage tank 2；The auxiliary material
Barreled feed supplementing device 1 also includes the regulation valve group 107 for being connected to feed supplement pump 103, dry, oil-free compressed air（Pressure P is
0.7MPa, flow Q are 0.2m3/min）Enter regulation valve group 107 as the power source of the device through pipeline, regulation valve group 107 can
The folding of control compressed air in real time, also can adjust the parameter that compressed air enters the auxiliary material barreled feed supplementing device 1.
With reference to Fig. 1 and Fig. 3, the auxiliary material buffer storage tank 2 include top be connected to conveying pipeline 105 holding vessel 201, when
The charging fed when liquid level reaches charging liquid level for controlling feed supplement valve 106 to open starts liquid-level switch 202, when liquid level is arrived
Up to during the upper limit for control feed supplement valve 106 close liquid level limit inferior switchs 203, when liquid level reach lower limit when be used for system alarm
Liquid level limit inferior switch 204, the first Ventilated cap 205 for the inside of balanced stock tank 201 and ambient pressure, be connected holding vessel
201 outlet at bottom ends and auxiliary material measure the first blowing pipeline 206 of cylinder system 3；The charging starts liquid-level switch 202, liquid
Position limit inferior switchs 203, liquid level limit inferior switch 204, the first Ventilated cap 205, the first blowing pipeline 206 are all connected to holding vessel
201；Auxiliary material buffer storage tank 2 is works under atmospheric pressure state, the first Ventilated cap 205 prevents it to produce negative pressure and pressure at work
The too high situation of power occurs；
Fig. 3 is also shown for auxiliary material metering cylinder system 3, and it includes the multiple cylinder barrel inlet valves for being connected to the first blowing pipeline 206
301st, multiple cylinder barrel inlet valve 301 and bottoms of being connected to are for the cylindric metering cylinder barrel 302 of pyramidal structure, located at metering cylinder barrel
302 the second Ventilated cap 303 and for controlling the liquid-level switch 304 of feed supplement height, for measuring liquid level change to obtain
Differential pressure pickup 305 that auxiliary material calculates the weight, the second blowing pipeline 306 for being connected to metering cylinder barrel 302 outlet at bottom end, with the
Baiting valve 307 that two blowing pipelines 306 and batch mixing tank arrangement 5 are all connected with, it is connected to metering cylinder barrel 302 outlet at bottom end and is used for essence
Really demarcation differential pressure pickup 305 detects the test valve 308 of parameter；Metering cylinder barrel 302 is according to every kind of auxiliary material in mixture recipes
Ratio and addition weight, it is highly identical, and diameter can be different；The original that general high-precision differential pressure pickup 305 is detected
Material weight change can be as accurate as 0.1g, and release certain raw material by the test valve 308 installed in cylinder barrel bottom, carry out
After weighing, reduce weight with the raw material that differential pressure pickup 305 is detected and contrasted, can also Accurate Calibration differential pressure pickup 305
Gravity detects parameter.
It is preferred that, it is described metering cylinder barrel highly be 1000mm, diameter be respectively 32mm, 50mm, 65mm, 80mm, 100mm,
250mm。
It is preferred that, when metering cylinder barrel highly is 1000mm, diameter is respectively 32,50,65,80,100mm when, holding vessel
Volume is 80L；When metering cylinder barrel is highly 1000mm, during a diameter of 250mm, the volume of holding vessel is 150L.
With reference to Fig. 1 and Fig. 4, the major ingredient feeding device 4 includes the basic material barrel 401 for being used to store major ingredient（Volume 200L）、
The charge pump 402 for being connected to basic material barrel 401, the feeding tube 403 and feeding tube 403 and mixing tank that are connected to charge pump 402
The charging valve 404 that device 5 is all connected with；The charging valve 404 is also attached to batch mixing tank arrangement 5 and realizes major ingredient from major ingredient feeding device
4 arrive the conveying of batch mixing tank arrangement 5.
Fig. 4 is also shown for batch mixing tank arrangement 5, and it includes the mixing tank 501 being sequentially connected（Volume 1200L）, batch can outlet
Control valve 504, first circulation delivery pump 505, the first three-way connector 506, first circulation valve 507, the and of first circulation pipeline 508
The formation of static mixer 509 closed-loop path, in addition to located at mixing tank 501 for measuring the electronic scale 502 of major ingredient weight, being used for
Major ingredient and the first agitating device 503 of auxiliary material stirring mixing, the transfer pipe 511 being sequentially connected with the first three-way connector 506
With turn material valve 510；The charging valve 404 and auxiliary material of the blending tank and major ingredient feeding device 4 measure the baiting valve of cylinder system 3
307 are all connected with, and described turn of material valve 510 is connected to material stock tank arrangement 6.The electronic scale 502 is used for the metering that major ingredient adds weight,
Because major ingredient is in batch mixing, charge weight typically constitutes from the 80%-90% of batch mixing gross weight, and weighing precision ensures just can be full in ± 1Kg
Sufficient technological requirement, therefore major ingredient can meet measuring accuracy completely using electronic scale metering；What first agitating device 503 was used
It is that raw material is well mixed by reducing motor driving impeller.
Fig. 5 shows material stock tank arrangement 6, and it includes the tank body 601 for being connected to transfer pipe 511（Volume 2000L）, be located at
The liquid level gauge 602 of tank body 601, the second agitating device 603, the filter located at the bottom of tank body 601 inside tank body 601
604th, the second circulation delivery pump 605 that is connected with filter 604, gone out with second circulation delivery pump 605 by partial circulating pipeline 607
The partial circulating valve 608 and heat exchanger 609 and second circulation delivery pump 605 that mouth one end and tank body 601 are sequentially connected are exported separately
Second three-way connector 610 of one end connection, connected with the second three-way connector 610 and tank body 601 by systemic circulation pipeline 611
The systemic circulation valve 612 connect, the temperature conditioning unit 606 being all connected with tank body 601 and heat exchanger 609；The tank body 601 is used to store
The urethane raw mixed, the second agitating device 603 is agitating shaft and impeller, and the temperature control uniformity of raw material is improved by stirring
And prevent raw material from occurring lamination after depositing for a long time, temperature conditioning unit 606 provides hot water or cold water, realize raw material heating and
Temperature control is cooled down, second three-way connector 610 is additionally coupled to work batch can；The tank body 601, filter 604, second circulation
Delivery pump 605, partial circulating pipeline 607, partial circulating valve 608, heat exchanger 609 are in turn connected to form partial circulating loop, institute
State tank body 601, filter 604, second circulation delivery pump 605, the second three-way connector 610, systemic circulation pipeline 611, systemic circulation
Valve 612 is in turn connected to form systemic circulation loop；Systemic circulation loop is connected to work on the spot batch can.
It is preferred that, the equipment also includes the refrigerated type air dryer 7 for being connected to tank body 601.
In the embodiment of the present invention, when the equipment works, in auxiliary material barreled feed supplementing device 1, dry, oil-free compressed air is passed through
Overregulate valve group 107 and enter feed supplement pump 103 as power source, feed supplement pump 103 is by suction tube 102 by the original in auxiliary material bucket 101
After material is suctioned out, added the raw material into auxiliary material buffer storage tank 2, fed by feed supplement valve by check valve 104 and conveying pipeline 105
106 opening and closing are controlled.
In auxiliary material buffer storage tank 2, raw material is entered after holding vessel 201, then by installed in the bottom of holding vessel 201
First blowing pipeline 206 enters auxiliary material and measures cylinder system 3；When the liquid level in holding vessel 201 reaches charging liquid level, charging is opened
Hydrodynamic bit switch 202 provides signal, and control feed supplement valve 106 is automatically turned on, the automatic feeding into pipe, when liquid level reaches the upper limit,
Liquid level limit inferior switchs 203 provide signal, and control feed supplement valve 106 is closed, and stops feed supplement, when liquid level reaches limit inferior, liquid level
Limit inferior switch 204 sends signal, system alarm；Raw material in holding vessel 201 is put into metering cylinder barrel 302 by deadweight,
The inside of first Ventilated cap, 205 Real-time Balancing holding vessel 201 and extraneous pressure.
In auxiliary material metering cylinder system 3, raw material is entered by being connected to the cylinder barrel inlet valve 301 of the first blowing pipeline 206
Enter to measure cylinder barrel 302, metering cylinder barrel 302 is operationally full of raw material always, when system is per amalgamation batch raw material, auxiliary material is put into one
Fixed weight supplements raw material to that after mixing tank 501, can automatically open up cylinder barrel inlet valve 301, and the supplement of each raw material highly passes through
Liquid-level switch 304 is controlled, and when auxiliary material is added to from holding vessel 201 in metering cylinder barrel 302, the liquid-level switch 304 at top is felt
Signal should be arrived, automatic to close cylinder barrel inlet valve 301, metering cylinder barrel 302 fills raw material, waits next batch batch mixing blowing.Metering
Raw material liquid level in cylinder barrel 302 is measured by high-precision differential pressure pickup 305, and differential pressure pickup 305 is former using gravity
Reason changes to measure the liquid level in cylinder barrel, when the liquid level in the metering cylinder barrel 302 that differential pressure pickup 305 is measured becomes
Change, can be transferred to by 4-20mA signals electric-control system PLC, PLC can automatically by the material density of setting, the diameter of cylinder barrel,
To calculate the change of raw material weight, during each batch mixing, according to the formula rate of technique initialization, the auxiliary material blowing weight in cylinder barrel
When reaching setting value, the baiting valve 307 for being arranged on the top of mixing tank 501 is closed automatically, completes the charging of auxiliary material.And pass through peace
Test valve 308 mounted in cylinder barrel bottom releases certain raw material, after being weighed, and the raw material detected with differential pressure pickup 305 subtracts
Few weight is contrasted, the gravity detection parameter of further Accurate Calibration differential pressure pickup 305.
In major ingredient feeding device 4, after charge pump 402 is suctioned out the major ingredient in basic material barrel 401 by feeding tube 403,
Batch mixing tank arrangement 5 is entered by charging valve 404.
In batch mixing tank arrangement 5, major ingredient and auxiliary material enter mixing tank 501, and the major ingredient weight into mixing tank 501 passes through electricity
Sub- scale 502 is measured；Mixing tank 501 mixes major ingredient and during auxiliary material, and first circulation delivery pump 505 is by raw material from the bottom of mixing tank 501
Extract out, then circulated and returned from the top of mixing tank 501 in tank by static mixer 509, the first agitating device 503 again to major ingredient and
Auxiliary material is stirred mixing, and when raw material completes to mix, circulating valve is closed, and is turned material valve 510 and is opened, and first circulation delivery pump 505 will
Raw material in mixing tank 501 is delivered to material stock tank by transfer pipe 511.
In material stock tank arrangement 6, mixed raw material is entered in tank body 601, dry, oil-free compressed air（Pressure P is
0.7MPa, flow Q are 0.2m3/min）By refrigerated type air dryer 7 enter tank body 601, material stock tank arrangement 6 operationally,
There are partial circulating and systemic circulation both of which, when the batch can that works need not supplement raw material, material stock tank arrangement 6 is in partial circulating mould
Formula, second circulation delivery pump 605 extracts raw material from the bottom of tank body 601 out, is then circulated by heat exchanger 609 from tank body 601
Top is returned in tank, and the temperature of raw material after mixing in tank body 601 is adjusted using heat exchanger 609 for temperature conditioning unit 606；Work as work
When requiring supplementation with raw material as batch can, material stock tank arrangement 6 enters systemic circulation pattern, and systemic circulation valve 612 is opened, in material stock tank arrangement 6
Raw material be transported to work on the spot batch can.
The present invention can be measured and mixed according to preset value to major ingredient and auxiliary material, and flexibly, automaticity is high for dispensing；
When measuring auxiliary material, employ 2 pairs of auxiliary material buffer storage tank metering cylinder barrels 302 and carry out quick feed supplement there is provided the company that auxiliary material is measured
Continuous property and stability, additionally use auxiliary material metering cylinder system 3 and carry out high-precision measuring, high accuracy therein to the weight of auxiliary material
Differential pressure pickup 305 by detect holding vessel 201 liquid level change with obtain can be accurate to 0.1g be used for batch mixing it is auxiliary
Expect weight, and by the test valve 308 installed in metering cylinder barrel 302 bottom can Accurate Calibration differential pressure pickup 305 gravity
Parameter is detected, the measuring accuracy of auxiliary material is high, the proportion speed of each component raw material.Dry, oil-free compressed air（Pressure P is
0.7MPa, flow Q are 0.2m3/min）Enter tank body 601 by refrigerated type air dryer 7, further compressed air is carried out
Dedusting, oil removing and drying, extend the service life of equipment and improve the quality of urethane raw after mixing.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, the protection of the present invention should be all considered as belonging to
Scope.
Claims (10)
1. urethane raw high-precision measuring mixing equipment, it is characterised in that the equipment includes：
The auxiliary material barreled feed supplementing device for being stored and being supplied to auxiliary material；
The auxiliary material buffer storage tank that cylinder system carries out quick feed supplement is measured to auxiliary material；
The auxiliary material metering cylinder system measured to auxiliary material；
The major ingredient feeding device for being stored and being supplied to major ingredient；
Major ingredient is measured and major ingredient and auxiliary material is mixed to obtain the batch mixing tank arrangement of compound；And
Compound is stored and circulation conveying material stock tank arrangement；
The auxiliary material barreled feed supplementing device, auxiliary material buffer storage tank, auxiliary material metering cylinder system are sequentially connected, the auxiliary material metering
Cylinder barrel and major ingredient feeding device are all connected to the arrival end of batch mixing tank arrangement, and the material stock tank arrangement is connected to batch mixing tank arrangement
The port of export；
The auxiliary material buffer storage tank includes：Multiple holding vessels, the charging for starting charging start liquid-level switch, for stopping
The liquid level limit inferior switchs of charging, the liquid level limit inferior switch for system alarm, the first Ventilated cap located at holding vessel, connection
Holding vessel outlet at bottom end and auxiliary material measure the first blowing pipeline of cylinder system；
The auxiliary material metering cylinder system includes：Multiple cylinder barrel inlet valves of the first blowing pipeline are connected to, cylinder barrel is connected to and enters
Expect valve and bottom is for cylindric multiple metering cylinder barrels of pyramidal structure, located at the second Ventilated cap for measuring cylinder barrel and for controlling
The liquid-level switch of feed supplement height, for measuring liquid level change to obtain differential pressure pickup that auxiliary material calculates the weight, be connected to
The second blowing pipeline at metering cylinder barrel outlet at bottom end, the baiting valve of the second blowing pipeline of connection and batch mixing tank arrangement, it is connected to
Measuring cylinder barrel outlet at bottom end is used for the test valve that Accurate Calibration differential pressure pickup detects parameter.
2. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The auxiliary material barreled
Feed supplementing device includes：It is multiple to be used to store the auxiliary material barrel of different auxiliary material, the feed supplement pumps being connected with auxiliary material bucket by suction tube, be located at
The check valve at feed supplement pump discharge end, the feed supplement valve for being connected to holding vessel, the conveying pipeline for connecting check valve and feed supplement valve.
3. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The major ingredient charging
Device includes：It is multiple to be used to store the basic material barrel of major ingredient, be connected to the charge pump of basic material barrel, be connected to the charge pipe of charge pump
The charging valve in road, connection feeding tube and batch mixing tank arrangement.
4. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The batch mixing is canned
Put including：It is in turn connected to form the mixing tank of closed-loop path, batch can discharge control valve, first circulation delivery pump, the one or three leads to
Fitting, first circulation valve, first circulation pipeline and static mixer, in addition to the electricity located at mixing tank for measuring major ingredient weight
Sub- scale, the transfer pipe being sequentially connected for major ingredient and the first agitating device of auxiliary material stirring mixing, with the first three-way connector
With turn material valve, described turn of material valve is connected to material stock tank arrangement, and the blending tank is all connected with charging valve and baiting valve.
5. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The material stock is canned
Put is used to storing the tank body of compound, the liquid level gauge located at tank body, for improving compound temperature control including being connected to transfer pipe
Uniformity and prevent layering the second agitating device, the filter located at the tank base port of export, be connected with filter second
Circulation conveying pump, the partial circulating valve being sequentially connected by partial circulating pipeline and second circulation delivery pump exit end and tank body and
Heat exchanger, with second circulation convey the pump discharge other end be connected the second three-way connector, by systemic circulation pipeline and second
The systemic circulation valve that three-way connector and tank body are all connected with and the temperature conditioning unit that tank body and heat exchanger are all connected with；Described 2nd 3
Lead to fitting and be additionally coupled to work batch can.
6. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The equipment is also wrapped
Include refrigerated type air dryer.
7. urethane raw high-precision measuring mixing equipment according to claim 2, it is characterised in that：The auxiliary material barreled
Feed supplementing device also includes being connected to the regulation valve group that feed supplement pump is used to adjust air inflow.
8. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The multiple metering
Cylinder barrel is highly identical, with a variety of different diameters.
9. urethane raw high-precision measuring mixing equipment according to claim 8, it is characterised in that：The metering cylinder barrel
It is highly 1000mm, diameter is respectively 32mm, 50mm, 65mm, 80mm, 100mm, 250mm.
10. urethane raw high-precision measuring mixing equipment according to claim 1, it is characterised in that：The multiple storage
Depositing tank has two kinds of specifications, and its volume is respectively 80L and 150L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447165.7A CN107029622A (en) | 2017-06-14 | 2017-06-14 | Urethane raw high-precision measuring mixing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447165.7A CN107029622A (en) | 2017-06-14 | 2017-06-14 | Urethane raw high-precision measuring mixing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107029622A true CN107029622A (en) | 2017-08-11 |
Family
ID=59542037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710447165.7A Pending CN107029622A (en) | 2017-06-14 | 2017-06-14 | Urethane raw high-precision measuring mixing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107029622A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656432A (en) * | 2018-06-08 | 2018-10-16 | 武汉正为机械有限公司 | A kind of isocyanates storage tank equipment |
| CN108745026A (en) * | 2018-08-01 | 2018-11-06 | 上海优华系统集成技术股份有限公司 | A kind of homogeneous pretreatment system and method for being adapted to pyrogenic process and handling clear tank sludge |
| CN110142913A (en) * | 2019-06-06 | 2019-08-20 | 武汉正为机械有限公司 | A kind of agitating device |
| WO2023279519A1 (en) * | 2021-07-09 | 2023-01-12 | 长鑫存储技术有限公司 | Mixing apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656432A (en) * | 2018-06-08 | 2018-10-16 | 武汉正为机械有限公司 | A kind of isocyanates storage tank equipment |
| CN108745026A (en) * | 2018-08-01 | 2018-11-06 | 上海优华系统集成技术股份有限公司 | A kind of homogeneous pretreatment system and method for being adapted to pyrogenic process and handling clear tank sludge |
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| WO2023279519A1 (en) * | 2021-07-09 | 2023-01-12 | 长鑫存储技术有限公司 | Mixing apparatus |
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Application publication date: 20170811 |