CN113976059B - Preparation process and equipment of cellulose citrate phthalate - Google Patents
Preparation process and equipment of cellulose citrate phthalate Download PDFInfo
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- CN113976059B CN113976059B CN202111368088.9A CN202111368088A CN113976059B CN 113976059 B CN113976059 B CN 113976059B CN 202111368088 A CN202111368088 A CN 202111368088A CN 113976059 B CN113976059 B CN 113976059B
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- 239000001913 cellulose Substances 0.000 title claims abstract description 36
- 229920002678 cellulose Polymers 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- RRZLYTLRXDGNJS-UHFFFAOYSA-N 2-hydroxypropane-1,2,3-tricarboxylic acid;phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O RRZLYTLRXDGNJS-UHFFFAOYSA-N 0.000 title claims description 19
- 238000005886 esterification reaction Methods 0.000 claims abstract description 101
- 230000032050 esterification Effects 0.000 claims abstract description 83
- 238000002156 mixing Methods 0.000 claims abstract description 60
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 abstract description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 abstract description 2
- 229960004106 citric acid Drugs 0.000 description 12
- 239000000126 substance Substances 0.000 description 10
- 239000000376 reactant Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001277 pectin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229960004543 anhydrous citric acid Drugs 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 235000019614 sour taste Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/12—Preparation of cellulose esters of organic acids of polybasic organic acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a preparation process and equipment of citric acid cellulose phthalate, which specifically comprise the following steps: step three: starting a fan to enable air flow to be infused, blowing fan blades, and step four: the fan blade drives the main mixing pipe to rotate, so that the mixing ball follows the joint pipe and the main mixing pipe to rotate, and the step five: the mixing ball rotates to drive the sealing rod to extend out along the tributary guide pipe through centrifugal force, the filling hole is opened, and citric acid in the hemispherical charging bucket flows out through the filling hole, and step six: the invention relates to the technical field of cellulose citrate, in particular to a method for continuously mixing citric acid and cellulose by rotation of a mixing ball. The source of driving force is provided for whole equipment through the setting of fan, reduces the heat that equipment during operation self produced, avoids the too high thermal fatigue damage that causes the equipment component, and the setting of fan has promoted air flow, avoids the heat that produces in the esterification process unable in time to dispel, guarantees the normal clear of esterification reaction.
Description
Technical Field
The invention relates to the technical field of cellulose citrate, in particular to a preparation process and equipment of cellulose citrate phthalate.
Background
Citric acid is an important organic acid, also called citric acid, and colorless crystals often contain a molecule of crystal water, are odorless, have strong sour taste, and are easily dissolved in water. The calcium salt is more soluble in cold water than in hot water, a property commonly used to identify and isolate citric acid. The anhydrous citric acid can be obtained by controlling a proper temperature during crystallization. The use in industry, food industry, cosmetics industry, etc. is extremely versatile.
Cellulose is the main structural component of plant cell walls, usually combined with hemicellulose, pectin and lignin in a manner and to a degree that greatly affects the texture of plant-derived foods. The change of texture of the plant during maturation and after maturation is caused by the change of pectic substances. Cellulase is not present in the human digestive tract, and is an important dietary fiber. The polysaccharide has the greatest distribution and content in the natural world.
The citric acid cellulose phthalate is prepared by the esterification reaction of citric acid and cellulose, but the traditional preparation process and equipment of the citric acid cellulose phthalate can generate heat in the esterification processing process, inhibit the esterification reaction process, and simultaneously generate heat to generate thermal fatigue on equipment components, so that the components cannot continuously work for a long time, and the processing progress is influenced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a preparation process and equipment of cellulose citrate phthalate, which solve the problems that the traditional preparation process and equipment of cellulose citrate phthalate can generate heat in the esterification process to inhibit the esterification process, and simultaneously the heat generation can generate thermal fatigue on equipment components to cause that the components cannot continuously work for a long time and influence the processing progress.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the preparation equipment of the cellulose citrate phthalate comprises the following concrete steps:
the guide tray is provided with a circular box body, a fan arranged on the right side of the outer surface of the guide tray, a track sliding rod arranged on the front surface and the back surface of the top of the circular box body, a support sliding ring arranged on the top of the track sliding rod, esterification equipment arranged on the inner surface of the support sliding ring, an arc supporting rod arranged on the top of the esterification equipment, and a hemispherical material tank arranged on the top of the arc supporting rod, wherein the source of driving force is provided for the whole equipment through the arrangement of the fan, the area of mutual contact of equipment components is reduced, the heat generated by the fan during the operation is reduced, the thermal fatigue damage to the equipment components caused by the overhigh heat is avoided, the durability of the equipment in the use process is prolonged, the air flow is promoted by the arrangement of the fan, the heat generated in the esterification process is prevented from being unable to be dissipated in time, the temperature control is carried out on the esterification reaction, and the normal running of the esterification reaction is ensured. The esterification apparatus includes:
the protection cylinder is provided with an annular cylinder body, an esterification spherical shell arranged at the middle position of the inner surface of the annular cylinder body, spiral air rails arranged at the top and the bottom of the annular cylinder body, a guiding-out opening arranged at the middle position of the bottom of the esterification spherical shell, a mixing rod piece arranged at the middle position of the top of the esterification spherical shell, and material injection pipe fittings arranged at the top of the esterification spherical shell and positioned at two sides of the mixing rod piece. The air resistance of the air flow is reduced through the spherical design of the esterification spherical shell, sufficient power is provided for driving equipment, meanwhile, the spherical surface of the esterification spherical shell guides the air flow, the contact area of the air flow and the esterification spherical shell is increased, and the better heat exchange is facilitated.
Preferably, the bottom of the mixing rod penetrates through the esterification spherical shell and extends to the bottom of the inner cavity of the esterification spherical shell, the bottom of the material injection pipe penetrates through the esterification spherical shell and extends to the top of the inner cavity of the esterification spherical shell, and the material injection pipe is located in the inner cavity of the spiral air rail. The design of the spiral wind rail is used for carrying out partial air flow backflow on flowing air flow, so that the contact time of the air flow and the esterification spherical shell is prolonged, the esterification spherical shell is subjected to heat exchange more thoroughly, and the situation that the esterification spherical shell is not uniform and thorough enough in heat exchange due to different positions is avoided.
Preferably, the mixing rod includes:
the mixing main pipe is provided with a hollow pipe fitting, a fan blade arranged on the outer surface of the hollow pipe fitting and positioned at the top of the esterification spherical shell, and a filling device arranged at the bottom of the hollow pipe fitting. The air flow power is conducted through the arrangement of the air flow fan blades, the integral driving of the components is achieved, meanwhile, the air flow fan blades slow the air flow, the air flow speed of the air flow at the outlet of the top of the protection cylinder is reduced, the air flow is convenient to flow in a scattered manner, the heat transfer of the air flow to the hemispherical charging bucket is avoided, and the chemical reactants are protected from failure.
Preferably, the packing device comprises:
the connector tube is provided with a columnar pipe fitting, a tributary guide tube arranged at the bottom of the outer surface of the columnar pipe fitting, a filler hole formed in the outer surface of the tributary guide tube, a sealing rod arranged on the inner surface of the tributary guide tube, a mixing ball arranged at one end of the sealing rod far away from the tributary guide tube, and a tightening spring sleeved on the outer surface of the tributary guide tube. Through the setting of tributary pipe, dead lever and tightening up the spring accessible rotation produced inertial control chemical material add, carry out the measurement control of inside reactant in real time, the rotation of tributary pipe and dead lever promotes the mixing of inside reactant simultaneously, promotes esterification reaction's emergence, ensures simultaneously that the reaction is more even thoroughly, prevents to produce the residual of chemical thing.
Preferably, the outer surface of the mixing main pipe is located between the spiral wind tracks, the fan blades are located above the spiral wind tracks, the top ends of the branch flow guide pipes are communicated with the joint pipes, the top parts of the tightening springs are connected with the joint pipes, and the bottom parts of the tightening springs are connected with the mixing balls.
Preferably, the injection pipe member includes:
the injection pipe is provided with an elbow pipe fitting, a sealing ring which is installed on one end of the elbow pipe fitting and close to the mixing rod, a telescopic rod which is installed on one side of the sealing ring and far away from the elbow pipe fitting, and a spherical end plate which is installed on one end of the telescopic rod and far away from the sealing ring, and a sealing plug which is installed on one side of the spherical end plate and close to the sealing ring and is located in the middle position of the telescopic rod. Through the setting of sphere end plate, the inside atmospheric pressure that the component can produce heat and lead to because of the inside esterification reaction of esterification spherical shell increases, applys the sphere end plate pressure for the sphere end plate drives the sealing plug and seals the notes material pipe, prevents that reaction chemistry from producing the backward flow, protects the esterification reaction, avoids the reaction to receive the interference.
Preferably, the top end of the injection pipe penetrates through the protection cylinder and extends to the outer surface of the protection cylinder, and the bottom end of the injection pipe penetrates through the esterification spherical shell and extends to the top of the inner cavity of the esterification spherical shell.
A preparation process of cellulose citrate phthalate comprises the following steps,
step one: filling citric acid in a hemispherical charging bucket, and simultaneously filling cellulose through a material injection pipe piece, so that the cellulose is infused into the inner cavity of the esterified spherical shell through a sealing ring;
step two: pushing the esterification equipment along the track sliding rod through the support sliding ring to enable the esterification equipment to be positioned right above the fan;
step three: starting a fan to enable air flow to be infused, enabling the air flow to ascend along the protection cylinder, enabling the air flow to ascend from the outer surface of the esterification spherical shell, blowing fan blades, and enabling the fan blades to rotate through the air flow;
step four: the fan blades drive the mixing main pipe to rotate and further drive the filling device to rotate, so that the mixing balls rotate along with the joint pipe and the mixing main pipe;
step five: the mixing ball rotates to drive the sealing rod to extend out along the tributary guide pipe through centrifugal force, the filling hole is opened, and citric acid in the hemispherical charging bucket is guided by the mixing main pipe, the joint pipe and the tributary guide pipe and flows out through the filling hole;
step six: the citric acid and the cellulose are continuously mixed and reacted through the rotation of the mixing ball to complete esterification and generate heat, and air expansion is carried out to squeeze the spherical end plate by utilizing the heat, so that the sealing plug and the sealing ring are sealed;
step seven: after the reaction is finished, the whole equipment is moved to the position right above the material guiding disc along the track sliding rod, and the outlet at the bottom of the esterification spherical shell is opened to guide out the finished product, so that the processing is completed.
(III) beneficial effects
The invention provides a preparation process and equipment of cellulose citrate phthalate. The beneficial effects are as follows:
the preparation process and the equipment of the cellulose citrate phthalate provide a source of driving force for the whole equipment through the arrangement of the fan, reduce the contact area of equipment components, simultaneously reduce the heat generated by the equipment during operation, avoid the thermal fatigue damage to the equipment components caused by overhigh heat, prolong the durability of the equipment during the use process, promote the air flow through the arrangement of the fan, avoid the heat generated during the esterification process from being unable to be dissipated in time, control the temperature of the esterification reaction and ensure the normal operation of the esterification reaction.
And the preparation process and equipment of the cellulose citrate phthalate reduce the air resistance of air flow through the spherical design of the esterified spherical shell, provide sufficient power for the driving of the equipment, guide the air flow by the spherical surface of the esterified spherical shell, increase the contact area of the air flow and the esterified spherical shell, and facilitate better heat exchange.
Thirdly, the preparation process and the equipment of the cellulose citrate phthalate are characterized in that the design of the spiral air rail is used for carrying out partial air flow backflow on flowing air flow, so that the contact time of the air flow and the esterification spherical shell is prolonged, the heat exchange is carried out on the esterification spherical shell more thoroughly, and the situation that the heat exchange is not uniform and thorough due to different positions of the esterification spherical shell is avoided.
And fourthly, the preparation process and the equipment of the cellulose citrate phthalate are used for conducting airflow power through the arrangement of the fan blades, so that the integral driving of the components is realized, meanwhile, the fan blades slow the airflow, the airflow velocity at the top outlet of the protection cylinder is reduced, the airflow is convenient to flow in a scattered manner, the heat transfer of the airflow to the hemispherical charging bucket is avoided, and the chemical reactants are protected from failure.
And fifthly, the preparation process and equipment of the cellulose citrate phthalate can utilize inertia generated by rotation to control the addition of chemical materials through the arrangement of the branch conduit, the sealing rod and the tightening spring, so as to control the metering of internal reactants in real time, and meanwhile, the rotation of the branch conduit and the sealing rod promotes the mixing of the internal reactants, promotes the occurrence of esterification reaction, ensures that the reaction is more uniform and thorough, and prevents the generation of chemical residues.
And (VI) the preparation process and equipment of the cellulose citrate phthalate are characterized in that through the arrangement of the spherical end plate, the internal air pressure of the component can be increased due to heat generated by the esterification reaction in the esterification spherical shell, and the pressure is applied to the spherical end plate, so that the spherical end plate drives the sealing plug to seal the material injection pipe, the reaction chemistry is prevented from flowing back, the esterification reaction is protected, and the reaction is prevented from being disturbed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall appearance structure of the present invention;
FIG. 3 is a schematic structural view of the esterification apparatus of the present invention;
FIG. 4 is a schematic view of the structure of the mixing rod of the present invention;
FIG. 5 is a schematic structural view of the packing apparatus of the present invention;
FIG. 6 is a schematic view of a material injection pipe fitting according to the present invention;
FIG. 7 is a schematic cross-sectional view of a part of the structure of the injection tube of the present invention;
FIG. 8 is a block diagram of a process flow for preparing cellulose citrate phthalate of the present invention;
in the figure: 1 guide disc, 2 fans, 3 track slide bars, 4 support slip rings, 5 esterification equipment, 51 protection cylinders, 52 esterification spherical shells, 53 spiral wind tracks, 54 guide outlets, 55 mixing rod pieces, 551 mixing main pipes, 552 fan blades, 553 filling devices, A1 joint pipes, A2 branch pipes, A3 filling holes, A4 sealing rods, A5 mixing balls, A6 tightening springs, 56 material injection pipe pieces, 561 material injection pipes, 562 sealing rings, 563 telescopic rods, 564 spherical end plates, 565 sealing plugs, 6 arc supporting rods and 7 hemispherical charging tanks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-7, the present invention provides a technical solution: the preparation equipment of the cellulose citrate phthalate comprises the following concrete steps:
the guide tray 1, this guide tray 1 has circular box, and install the fan 2 on guide tray 1 surface right side, and install in circular box top openly and back track slide bar 3, and install the support sliding ring 4 at track slide bar 3 top, and install the esterification equipment 5 at support sliding ring 4 internal surface, and install the arc vaulting pole 6 at esterification equipment 5 top, and install the hemisphere material jar 7 at arc vaulting pole 6 top, set up the source that provides the actuating force for whole equipment through fan 2, reduce the area that equipment component contacted each other, reduce the heat that equipment during operation self produced simultaneously, avoid the too high heat to cause the thermal fatigue harm to equipment component, prolong the lasting performance of equipment in the use, the setting of fan 2 has promoted the air flow simultaneously, avoid the heat that the in-process produced unable in time to dispel, control the esterification reaction carries out the temperature, guarantee the normal clear of esterification reaction. The esterification apparatus 5 includes:
the protection cylinder 51 has an annular cylinder body, an esterification ball housing 52 mounted at the middle position of the inner surface of the annular cylinder body, spiral wind rails 53 mounted at the top and bottom of the annular cylinder body, a lead-out port 54 mounted at the middle position of the bottom of the esterification ball housing 52, a mixing rod member 55 mounted at the middle position of the top of the esterification ball housing 52, and a material injection pipe member 56 mounted at the top of the esterification ball housing 52 and positioned at both sides of the mixing rod member 55. The spherical design of the esterification spherical shell 52 reduces the air resistance of the air flow, provides sufficient power for the driving of equipment, guides the air flow by the spherical surface of the esterification spherical shell 52, increases the contact area between the air flow and the esterification spherical shell 52, and facilitates better heat exchange.
The bottom of the mixing rod piece 55 penetrates through the esterification spherical shell 52 and extends to the bottom of the inner cavity of the esterification spherical shell 52, the bottom of the material injection pipe piece 56 penetrates through the esterification spherical shell 52 and extends to the top of the inner cavity of the esterification spherical shell 52, and the material injection pipe piece 56 is located in the inner cavity of the spiral air rail 53. The design of the spiral air rail 53 is used for carrying out partial air flow backflow on flowing air flow, so that the contact time of the air flow and the esterification spherical shell 52 is prolonged, the esterification spherical shell 52 is subjected to heat exchange more thoroughly, and the situation that the esterification spherical shell 52 is not uniform and thorough enough in heat exchange due to different positions is avoided.
The mixing rod 55 includes:
a mixing main pipe 551, the mixing main pipe 551 having a hollow pipe member, and a fan blade 552 mounted on the outer surface of the hollow pipe member at the top of the esterification bulb 52, and a packing device 553 mounted on the bottom of the hollow pipe member. Through the setting of fan flow flabellum 552 to conduct the air current power, realize the overall drive to the component, the fan flow flabellum 552 slowly flows the air current simultaneously, reduces the air current velocity of flow protection section of thick bamboo 51 top exit, and the air current of being convenient for is scattered the flow all around, avoids the air current heat transfer to hemisphere material jar 7, protects the chemical reactant and avoids inefficacy.
The packing device 553 includes:
the connector pipe A1 is provided with a cylindrical pipe fitting, a tributary pipe A2 arranged at the bottom of the outer surface of the cylindrical pipe fitting, a filler hole A3 formed on the outer surface of the tributary pipe A2, a sealing rod A4 arranged on the inner surface of the tributary pipe A2, a mixing ball A5 arranged at one end of the sealing rod A4 far away from the tributary pipe A2 and a tightening spring A6 sleeved on the outer surface of the tributary pipe A2. Through the setting of tributary pipe A2, dead lever A4 and tightening up spring A6 accessible rotation produced inertia control chemical material add, carry out the measurement control of inside reactant in real time, the rotation of tributary pipe A2 and dead lever A4 promotes the mixing of inside reactant simultaneously, promotes esterification reaction's emergence, ensures simultaneously that the reaction is more even thoroughly, prevents to produce the residual of chemical thing.
The outer surface of the mixing main pipe 551 is positioned between the spiral air rails 53, the fan blades 552 are positioned above the spiral air rails 53, the top end of the tributary conduit A2 is communicated with the joint pipe A1, the top of the tightening spring A6 is connected with the joint pipe A1, and the bottom of the tightening spring A6 is connected with the mixing ball A5.
The filler pipe piece 56 includes:
the injection pipe 561, this injection pipe 561 has the return bend pipe fitting, and installs the sealing ring 562 that is close to the one end of mixing rod 55 at the return bend pipe fitting, and installs the telescopic link 563 that is far away from return bend pipe fitting side at sealing ring 562 to and install the sphere end plate 564 that is far away from sealing ring 562 one end at telescopic link 563, and install the sealing plug 565 that is close to one side of sealing ring 562 and is located telescopic link 563 intermediate position at sphere end plate 564. Through the setting of sphere end plate 564, the inside atmospheric pressure that the component can produce the heat and lead to because of esterifying spherical shell 52 inside esterification reaction increases, applys the pressure to sphere end plate 564 for sphere end plate 564 drives sealing plug 565 and seals the notes material pipe 561, prevents that the reaction chemistry from producing backward flow, protects the esterification reaction, avoids the reaction to receive the interference.
The top end of the injection pipe 561 penetrates through the protection cylinder 51 and extends to the outer surface of the protection cylinder 51, and the bottom end of the injection pipe 561 penetrates through the esterification spherical shell 52 and extends to the top of the inner cavity of the esterification spherical shell 52.
Embodiment two:
referring to fig. 1-7, on the basis of the first embodiment, the present invention provides a technical solution: a preparation process of cellulose citrate phthalate comprises the following steps,
step one: filling citric acid in the hemispherical charging bucket 7, and simultaneously filling cellulose through the charging pipe fitting 56, so that the cellulose is infused into the inner cavity of the esterification spherical shell 52 through the sealing ring 562;
step two: pushing the esterification equipment 5 along the track slide rod 3 through the support slip ring 4 to enable the esterification equipment 5 to be positioned right above the fan 2;
step three: the fan 2 is started to infuse air flow, the air flow rises along the protection cylinder 51, the air flow rises from the outer surface of the esterification spherical shell 52 to blow the fan blades 552, and the fan blades 552 are driven to rotate by the air flow;
step four: the fan blade 552 drives the mixing main pipe 551 to rotate and further drives the packing device 553 to rotate, so that the mixing ball A5 follows the joint pipe A1 and the mixing main pipe 551 to rotate;
step five: the mixing ball A5 rotates to drive the sealing rod A4 to extend out along the tributary guide pipe A2 through centrifugal force, the filling hole A3 is opened, citric acid in the hemispherical charging bucket 7 is guided by the mixing main pipe 551, the joint pipe A1 and the tributary guide pipe A2, and flows out through the filling hole A3;
step six: the citric acid and the cellulose are continuously mixed and reacted through the rotation of the mixing ball A5 to complete esterification and generate heat, and air expansion is caused by the heat to squeeze the spherical end plate 564, so that the sealing plug 565 and the sealing ring 562 are sealed;
step seven: after the reaction is finished, the whole equipment is moved to the position right above the material guiding disc 1 along the track slide rod 3, and the outlet 54 at the bottom of the esterification spherical shell 52 is opened to lead out the finished product, so that the processing is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The preparation equipment of the cellulose citrate phthalate comprises the following concrete steps:
guide tray (1), this guide tray (1) have circular box, and install fan (2) on guide tray (1) surface right side, and install circular box top openly and back track slide bar (3), and install support sliding ring (4) at track slide bar (3) top, and install support equipment (5) of sliding ring (4) internal surface, and install arc vaulting pole (6) at equipment (5) top of esterifying, and install hemisphere material jar (7) at arc vaulting pole (6) top, its characterized in that: the esterification apparatus (5) comprises:
the protection cylinder (51) is provided with an annular cylinder body, an esterification spherical shell (52) arranged at the middle position of the inner surface of the annular cylinder body, spiral wind rails (53) arranged at the top and the bottom of the annular cylinder body, a guide-out opening (54) arranged at the middle position of the bottom of the esterification spherical shell (52), a mixing rod piece (55) arranged at the middle position of the top of the esterification spherical shell (52), and material injection pipe pieces (56) arranged at the top of the esterification spherical shell (52) and positioned at two sides of the mixing rod piece (55);
the bottom of the mixing rod piece (55) penetrates through the esterification spherical shell (52) and extends to the bottom of the inner cavity of the esterification spherical shell (52), the bottom of the material injection pipe fitting (56) penetrates through the esterification spherical shell (52) and extends to the top of the inner cavity of the esterification spherical shell (52), and the material injection pipe fitting (56) is positioned in the inner cavity of the spiral air rail (53);
the mixing rod (55) comprises:
a mixing main pipe (551), wherein the mixing main pipe (551) is provided with a hollow pipe fitting, a fan blade (552) which is arranged on the outer surface of the hollow pipe fitting and is positioned at the top of the esterification spherical shell (52), and a packing device (553) which is arranged at the bottom of the hollow pipe fitting;
the stuffing device (553) comprises:
the connector pipe (A1) is provided with a cylindrical pipe fitting, a branch flow conduit (A2) arranged at the bottom of the outer surface of the cylindrical pipe fitting, a filler hole (A3) formed in the outer surface of the branch flow conduit (A2), a sealing rod (A4) arranged on the inner surface of the branch flow conduit (A2), a mixing ball (A5) arranged at one end, far away from the branch flow conduit (A2), of the sealing rod (A4), and a tightening spring (A6) sleeved on the outer surface of the branch flow conduit (A2);
the outer surface of the mixing main pipe (551) is positioned between the spiral wind rails (53), the fan blades (552) are positioned above the spiral wind rails (53), the top end of the tributary conduit (A2) is communicated with the joint pipe (A1), the top of the tightening spring (A6) is connected with the joint pipe (A1), and the bottom of the tightening spring (A6) is connected with the mixing ball (A5);
the filler tube (56) comprises:
a filling pipe (561), the filling pipe (561) is provided with a pipe bending pipe fitting, a sealing ring (562) arranged at one end of the pipe bending pipe fitting close to the mixing rod (55), a telescopic rod (563) arranged at one side of the sealing ring (562) far away from the pipe bending pipe fitting, and a spherical end plate (564) arranged at one end of the telescopic rod (563) far away from the sealing ring (562), and a sealing plug (565) arranged at one side of the spherical end plate (564) close to the sealing ring (562) and positioned at the middle position of the telescopic rod (563);
the top end of the injection pipe (561) penetrates through the protection cylinder (51) and extends to the outer surface of the protection cylinder (51), and the bottom end of the injection pipe (561) penetrates through the esterification spherical shell (52) and extends to the top of the inner cavity of the esterification spherical shell (52);
the preparation process of cellulose citrate phthalate comprises the following steps,
step one: filling citric acid in a hemispherical charging bucket (7), and simultaneously filling cellulose through a charging pipe (56), so that the cellulose is infused into the inner cavity of the esterification spherical shell (52) through a sealing ring (562);
step two: pushing the esterification equipment (5) along the track slide rod (3) through the support slip ring (4) to enable the esterification equipment (5) to be positioned right above the fan (2);
step three: starting a fan (2) to enable air flow to be infused, enabling the air flow to rise along the protection cylinder (51), enabling the air flow to rise from the outer surface of the esterification spherical shell (52), blowing the fan blades (552), and enabling the fan blades (552) to rotate through the air flow;
step four: the fan blade (552) drives the mixing main pipe (551) to rotate and further drives the packing device (553) to rotate, so that the mixing ball (A5) rotates along with the joint pipe (A1) and the mixing main pipe (551);
step five: the mixing ball (A5) rotates to drive the sealing rod (A4) to extend out along the tributary guide pipe (A2) through centrifugal force, the filling hole (A3) is opened, citric acid in the hemispherical charging tank (7) is guided by the mixing main pipe (551), the joint pipe (A1) and the tributary guide pipe (A2), and flows out through the filling hole (A3);
step six: the citric acid and the cellulose are continuously mixed and reacted through the rotation of the mixing ball (A5) to complete esterification and generate heat, and air expansion is carried out to squeeze the spherical end plate (564) by utilizing the heat, so that the sealing plug (565) and the sealing ring (562) are sealed;
step seven: after the reaction is finished, the whole equipment is moved to the position right above the material guiding disc (1) along the track slide rod (3), a guiding-out opening (54) at the bottom of the esterification spherical shell (52) is opened to guide out the finished product, and the processing is completed.
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