CN113976059A - Preparation process and equipment of cellulose citrate phthalate - Google Patents
Preparation process and equipment of cellulose citrate phthalate Download PDFInfo
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- CN113976059A CN113976059A CN202111368088.9A CN202111368088A CN113976059A CN 113976059 A CN113976059 A CN 113976059A CN 202111368088 A CN202111368088 A CN 202111368088A CN 113976059 A CN113976059 A CN 113976059A
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- 239000001913 cellulose Substances 0.000 title claims abstract description 36
- 229920002678 cellulose Polymers 0.000 title claims abstract description 36
- 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 abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000005886 esterification reaction Methods 0.000 claims abstract description 98
- 238000002156 mixing Methods 0.000 claims abstract description 53
- 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 47
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000032050 esterification Effects 0.000 claims description 79
- 239000000463 material Substances 0.000 claims description 40
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 3
- 241000883990 Flabellum Species 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 4
- 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
- 238000007664 blowing Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 11
- 229960004106 citric acid Drugs 0.000 description 10
- 239000000376 reactant Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001814 pectin Substances 0.000 description 2
- 229920001277 pectin Polymers 0.000 description 2
- 235000010987 pectin Nutrition 0.000 description 2
- 108010059892 Cellulase Proteins 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229960004543 anhydrous citric acid Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 230000008859 change Effects 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
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 150000004676 glycans Chemical class 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
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 235000019614 sour taste Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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 cellulose citrate phthalate, which specifically comprise the following steps: step three: starting the fan to infuse the airflow and blowing the airflow fan blades, and the fourth step: the wind current flabellum drives the mixed person in charge and rotates for the mixed ball is followed the joint pipe and is mixed the person in charge and rotate, step five: the mixed ball rotates to drive the sealing rod to stretch out along the branch guide pipe through centrifugal force, the filling hole is opened, citric acid in the hemispherical charging bucket flows out through the filling hole, and the step six is as follows: the invention relates to the technical field of cellulose citrate, and discloses a continuous mixing reaction of citric acid and cellulose through the rotation of a mixing ball. Set up to the source that whole equipment provided drive power through the fan, reduce the heat that equipment during operation self produced, avoid the heat too high to cause thermal fatigue harm to equipment member, the setting up of fan has promoted the air current, avoids the heat that the in-process of esterifying produced to in time 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, colorless crystal, often contains a molecular crystal water, is odorless, has strong sour taste and is easily dissolved in water. Its 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 the proper temperature during the crystallization. Has a great number of applications in industry, food industry, cosmetics industry and the like.
Cellulose is the main structural component of plant cell walls, usually combined with hemicellulose, pectin and lignin, in such a way and to such an extent that it has a great influence on the texture of plant-derived food products. The change in texture of plants during and after ripening is caused by changes in the pectin material. Cellulase does not exist in the digestive tract of human body, and cellulose is an important dietary fiber. The polysaccharide has the widest distribution and the largest content in nature.
The cellulose citrate phthalate is prepared by carrying out esterification reaction between citric acid and cellulose, but the traditional preparation process and equipment of the cellulose citrate phthalate can generate heat in the esterification processing process to inhibit the esterification reaction process, and meanwhile, the generation of the heat generates thermal fatigue on equipment components, so that the components can not continuously work for a long time, and the processing progress is influenced.
Disclosure of Invention
Technical problem to be solved
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 processing process to inhibit the esterification reaction process, and simultaneously, the heat generates thermal fatigue to equipment components, so that the components can not continuously work for a long time, and the processing progress is influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation equipment of cellulose citrate phthalate specifically comprises:
the guide plate is provided with a circular box body, a fan arranged on the right side of the outer surface of the guide plate, track slide rods arranged on the front surface and the back surface of the top of the circular box body, a supporting slide ring arranged on the top of the track slide rods, esterification equipment arranged on the inner surface of the supporting slide ring, an arc-shaped support rod arranged on the top of the esterification equipment, and a hemisphere charging bucket arranged on the top of the arc-shaped support rod, wherein the fan is used for providing a source of driving force for the whole equipment, so that the area of mutual contact of equipment components is reduced, meanwhile, the heat generated by the equipment during working is reduced, the thermal fatigue damage to the equipment components caused by overhigh heat is avoided, the durability of the equipment in the using process is prolonged, meanwhile, the air flow is promoted by the arrangement of the fan, the heat generated in the esterification process is prevented from being dissipated in time, and the temperature control is carried out on the esterification reaction, ensuring the normal running of the esterification reaction. The esterification apparatus comprises:
the protection cylinder is provided with an annular cylinder body and an esterification spherical shell arranged in the middle of the inner surface of the annular cylinder body, is arranged on the spiral air rails at the top and the bottom of the annular cylinder body, is arranged at the middle of the bottom of the esterification spherical shell, is arranged on a mixing rod piece arranged in the middle of the top of the esterification spherical shell, and is arranged on the top of the esterification spherical shell and positioned on the material injection pipe fittings 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 of the equipment, meanwhile, the esterification spherical shell guides the air flow, the contact area of the air flow and the esterification spherical shell is increased, and 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 fitting 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 fitting is located in the inner cavity of the spiral air track. The design through spiral shell cyclone rail carries out the backward flow of part air current to the air current that flows, and the contact time of extension air current and esterification ball shell carries out the heat exchange to esterification ball shell more thoroughly, avoids esterification ball shell to lead to the heat exchange thoroughly enough because of the position difference.
Preferably, the mixing rod comprises:
the main mixing pipe is provided with a hollow pipe fitting, an air flow fan blade and a filling device, wherein the air flow fan blade is arranged on the outer surface of the hollow pipe fitting and is positioned at the top of the esterification spherical shell, and the filling device is arranged at the bottom of the hollow pipe fitting. Set up through the wind current flabellum and conduct air current power, realize the whole drive to the component, the wind current flabellum carries out the slow flow to the air current simultaneously, reduces the air current velocity of flow of air current in protection section of thick bamboo top exit, and the air current of being convenient for is scattered around flowing, avoids air current heat transfer to hemisphere material jar, protects chemical reactant and avoids becoming invalid.
Preferably, the packing means comprises:
the connector pipe, this connector pipe have the column pipe fitting, and install the tributary pipe of column pipe fitting surface bottom, and set up the filled hole of tributary pipe surface, and install the closing rod of tributary pipe internal surface, and install the mixing ball that tributary pipe one end was kept away from to the closing rod, and the cover is established the tightening spring of tributary pipe surface. Through the usable inertia control chemical material's that produces of rotation that sets up of tributary pipe, closing rod and tightening spring addition, carry out the metering control of inside reactant in real time, the rotation of tributary pipe and closing rod promotes the mixture of inside reactant simultaneously, promotes esterification reaction's emergence, ensures simultaneously that the reaction is more even thoroughly, prevents to produce the residue of chemical.
Preferably, the outer surface of the mixing main pipe is located between the spiral wind rails, the wind flow fan blades are located above the spiral wind rails, the top ends of the branch flow guide pipes are communicated with the joint pipes, the tops of the tightening springs are connected with the joint pipes, and the bottoms of the tightening springs are connected with the mixing balls.
Preferably, the injection pipe comprises:
annotate the material pipe, this notes material pipe has the return bend pipe fitting, and installs the return bend pipe fitting is close to the sealing ring of mixing rod spare one end, and install the sealing ring is kept away from the telescopic link of return bend pipe fitting one side, and install the telescopic link is kept away from the spherical end plate of sealing ring one end, and install the spherical end plate is close to one side of sealing ring just is located the sealing plug of telescopic link intermediate position. Through the setting of sphere end plate, the component can carry out pressure to the sphere end plate and exert because the inside atmospheric pressure that the esterification reaction produced heat and leads to of spherical shell of esterifying for the sphere end plate drives the sealing plug and seals annotating the material pipe, prevents that reaction chemistry from producing the backward flow, protects esterification reaction, avoids the reaction to receive the interference.
Preferably, the top end of the material injection pipe penetrates through the protection cylinder and extends to the outer surface of the protection cylinder, and the bottom end 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.
A process for preparing cellulose citrate phthalate includes such steps as,
the method comprises the following steps: filling citric acid in a hemispherical charging bucket, and filling cellulose through a material injection pipe, so that the cellulose is infused into an inner cavity of the esterification spherical shell through a sealing ring;
step two: the esterification equipment is pushed along the rail sliding rod through the supporting sliding ring, so that the esterification equipment is positioned right above the fan;
step three: starting a fan to infuse airflow, wherein the airflow rises along the protection cylinder, rises from the outer surface of the esterification spherical shell and blows the airflow fan blades, and the airflow fan blades are driven to rotate by the airflow;
step four: the wind flow fan blades drive the mixing main pipe to rotate, and further drive the filling device to rotate, so that the mixing ball rotates 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 branch guide pipe through centrifugal force, the filling hole is opened, and the citric acid in the hemispherical charging bucket is guided through the main mixing pipe, the joint pipe and the branch guide pipe and flows out through the filling hole;
step six: citric acid and cellulose are subjected to continuous mixing reaction through the rotation of the mixing ball to complete esterification and generate heat, and the heat is utilized to expand air to extrude the spherical end plate, 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 guide plate along the rail sliding rod, and a guide outlet at the bottom of the esterification spherical shell is opened to guide out a finished product, so that the processing is finished.
(III) advantageous effects
The invention provides a preparation process and equipment of cellulose citrate phthalate. The method has the following beneficial effects:
(I), this preparation technology and equipment of cellulose citrate phthalate, set up to the source that whole equipment provided drive power through the fan, reduce the area of equipment component mutual contact, reduce the heat that equipment during operation self produced simultaneously, avoid the heat too high to cause thermal fatigue harm to the equipment component, the endurance quality of extension equipment in the use, the setting of fan has promoted the air flow simultaneously, the heat of avoiding esterifying the in-process production can't in time be dispelled, carry out the control of temperature to the esterification reaction, guarantee the normal clear of esterification reaction.
According to the preparation process and the preparation equipment of the cellulose citrate phthalate, the air resistance of air flow is reduced through the spherical design of the esterification spherical shell, sufficient power is provided for driving the 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 better heat exchange is facilitated.
According to the preparation process and the preparation equipment of the cellulose citrate phthalate, the backflow of partial airflow is carried out on flowing airflow through the design of the spiral air rail, the contact time of the airflow and the esterified spherical shell is prolonged, the heat exchange is carried out on the esterified spherical shell more thoroughly, and the phenomenon that the heat exchange is not uniform and thorough due to different positions of the esterified spherical shell is avoided.
(IV), this preparation technology and equipment of cellulose citrate phthalate, set up through the wind current flabellum and conduct air current power, realize the whole drive to the component, the wind current flabellum carries out the slow flow to the air current simultaneously, reduces the air current velocity of flow of air current in protection section of thick bamboo top exit, and the air current of being convenient for looses the flow all around, avoids air current heat transfer to hemisphere material jar, protects chemical reactant and avoids becoming invalid.
The addition of chemical materials can be controlled by utilizing the inertia generated by rotation through the arrangement of the branch flow guide pipe, the closing rod and the tightening spring, the metering control of internal reactants is carried out in real time, the rotation of the branch flow guide pipe and the closing rod promotes the mixing of the internal reactants, the esterification reaction is promoted, the reaction is ensured to be more uniform and thorough, and the residue of the chemicals is prevented from being generated.
(VI), this preparation technology and equipment of cellulose citrate phthalate, through the setting of sphere end plate, the component can be because the inside atmospheric pressure that the esterification reaction produced heat and leads to of esterification spherical shell increases, carries out pressure to the sphere end plate and exerts for the sphere end plate drives the sealing plug and seals annotating the material pipe, prevents that reaction chemistry from producing the backward flow, protects esterification reaction, avoids the reaction to receive the interference.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the overall appearance structure of the present invention;
FIG. 3 is a schematic view of the structure of an esterification apparatus according to the present invention;
FIG. 4 is a schematic structural view of the mixing rod of the present invention;
FIG. 5 is a schematic view of the packing device of the present invention;
FIG. 6 is a schematic view of the structure of the injection pipe of the present invention;
FIG. 7 is a schematic cross-sectional view of a part of the structure of the injection pipe of the present invention;
FIG. 8 is a block diagram of a process for preparing cellulose citrate phthalate in accordance with the present invention;
in the figure: the device comprises a material guide disc 1, a fan 2, a track sliding rod 3, a supporting sliding ring 4, an esterification device 5, a protective cylinder 51, an esterification ball shell 52, a spiral wind rail 53, a guide outlet 54, a mixing rod 55, a main mixing pipe 551, an air flow fan blade 552, a filler device 553, an A1 joint pipe, a branch flow guide pipe A2, A3 filler hole, an A4 closing rod, an A5 mixing ball, an A6 tightening spring, a 56 material injection pipe, a 561 material injection pipe, a 562 sealing ring, a 563 telescopic rod, a 564 spherical end plate, a 565 sealing plug, a6 arc-shaped supporting rod and a 7 hemispherical material tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-7, the present invention provides a technical solution: a preparation equipment of cellulose citrate phthalate specifically comprises:
a material guide plate 1, wherein the material guide plate 1 is provided with a circular box body, a fan 2 arranged on the right side of the outer surface of the material guide plate 1, track slide rods 3 arranged on the front surface and the back surface of the top of the circular box body, a supporting slide ring 4 arranged on the top of the track slide rod 3, an esterification device 5 arranged on the inner surface of the supporting slide ring 4, an arc-shaped support rod 6 arranged on the top of the esterification device 5, and a hemisphere material tank 7 arranged on the top of the arc-shaped support rod 6, the fan 2 is used for providing a source of driving force for the whole device, the contact area of device components is reduced, the heat generated by the device during working is reduced, the thermal fatigue damage to the device components caused by overhigh heat is avoided, the durability of the device during the use process is prolonged, meanwhile, the air flow is promoted by the arrangement of the fan 2, the heat generated in the esterification process is prevented from being dissipated in time, and the temperature control is carried out on the esterification reaction, ensuring the normal running of the esterification reaction. The esterification apparatus 5 includes:
the protection cylinder 51 is provided with an annular cylinder body, an esterification spherical shell 52 arranged in the middle of the inner surface of the annular cylinder body, spiral air rails 53 arranged at the top and the bottom of the annular cylinder body, a guide outlet 54 arranged in the middle of the bottom of the esterification spherical shell 52, a mixing rod piece 55 arranged in the middle of the top of the esterification spherical shell 52, and material injection pipe fittings 56 arranged at the top of the esterification spherical shell 52 and positioned at two sides of the mixing rod piece 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 the equipment, and simultaneously the spherical surface of the esterification spherical shell 52 guides the air flow, increases the contact area of the air flow and the esterification spherical shell 52, and is convenient for better heat exchange.
The bottom of the mixing rod 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 injection pipe 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 injection pipe 56 is located in the inner cavity of the spiral air rail 53. The design through spiral wind rail 53 carries out the backward flow of partial air current to the air current that flows, and the contact time of extension air current and esterification spherical shell 52 carries out heat exchange to esterification spherical shell 52 more thoroughly, avoids esterification spherical shell 52 to lead to the heat exchange not enough evenly thoroughly because of the position difference.
The mixing rod 55 includes:
a mixing main tube 551, the mixing main tube 551 has a hollow tube, and wind flow fan blades 552 mounted on the outer surface of the hollow tube at the top of the esterification spherical shell 52, and a packing device 553 mounted at the bottom of the hollow tube. Set up through wind flow flabellum 552 and conduct air current power, realize the whole drive to the component, wind flow flabellum 552 carries out the slow flow to the air current simultaneously, reduces the air current velocity of flow of air current in the exit of protection section of thick bamboo 51 top, and the air current of being convenient for is scattered the flow all around, avoids air current heat transfer to hemisphere material jar 7, protects chemical reactant and avoids becoming invalid.
The packing means 553 comprises:
the joint pipe A1, the joint pipe A1 has a column pipe, a branch flow guide pipe A2 arranged at the bottom of the outer surface of the column pipe, a filling hole A3 arranged on the outer surface of the branch flow guide pipe A2, a closing rod A4 arranged on the inner surface of the branch flow guide pipe A2, a mixing ball A5 arranged at one end of the closing rod A4 far away from the branch flow guide pipe A2, and a tightening spring A6 sleeved on the outer surface of the branch flow guide pipe A2. Through the usable inertia control chemical material's that produces of setting up of tributary pipe A2, closing rod A4 and tightening spring A6 addition, carry out the metering control of inside reactant in real time, the rotation of tributary pipe A2 and closing rod A4 promotes the mixture of inside reactant simultaneously, promotes esterification reaction's emergence, ensures the reaction more evenly thoroughly simultaneously, prevents to produce the residue of chemical.
The outer surface of the main mixing tube 551 is located between the spiral wind rails 53, the wind flow blades 552 are located above the spiral wind rails 53, the top end of the branch flow duct 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 a 5.
The injection pipe 56 includes:
and the injection pipe 561 is provided with an elbow pipe fitting, a sealing ring 562 which is installed at one end of the elbow pipe fitting close to the mixing rod piece 55, an expansion rod 563 which is installed at one side of the sealing ring 562 far away from the elbow pipe fitting, a spherical end plate 564 which is installed at one end of the expansion rod 563 far away from the sealing ring 562, and a sealing plug 565 which is installed at one side of the spherical end plate 564 close to the sealing ring 562 and is located in the middle position of the expansion rod 563. Through the setting of sphere end plate 564, the component can be because the inside atmospheric pressure that the esterification reaction produced heat and lead to increases in 52 spherical shell that esterify, carries out pressure to sphere end plate 564 and exerts for sphere end plate 564 drives sealing plug 565 and seals annotate material pipe 561, prevents that reaction chemistry from producing the backward flow, protects 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.
Example two:
referring to fig. 1-7, on the basis of the first embodiment, the present invention provides a technical solution: a process for preparing cellulose citrate phthalate includes such steps as,
the method comprises the following steps: filling citric acid in a hemispherical charging bucket 7, and filling cellulose through a material injection 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: the esterification device 5 is pushed along the track slide bar 3 through the supporting slide ring 4, so that the esterification device 5 is positioned right above the fan 2;
step three: starting the fan 2 to infuse air flow, wherein the air flow rises along the protective cylinder 51 and rises from the outer surface of the esterification spherical shell 52 to blow the air flow fan blade 552, and the air flow fan blade 552 is driven to rotate by the air flow;
step four: the wind flow fan blade 552 drives the mixing main pipe 551 to rotate, and further drives the filling 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 closing rod A4 to extend out along the branch flow guide pipe A2 through centrifugal force, the filling hole A3 is opened, and citric acid in the hemispherical charging bucket 7 is guided through the mixing main pipe 551, the joint pipe A1 and the branch flow guide pipe A2 and flows out through the filling hole A3;
step six: the citric acid and the cellulose are subjected to continuous mixing reaction through the rotation of the mixing ball A5, the esterification is completed, heat is generated, air is expanded by utilizing the heat to extrude the spherical end plate 564, and 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 guide plate 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 finished.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A preparation equipment of cellulose citrate phthalate specifically comprises:
guide plate (1), this guide plate (1) have circular box, and install fan (2) on guide plate (1) surface right side, and install circular box top front and back track slide bar (3), and install support sliding ring (4) at track slide bar (3) top, and install esterification equipment (5) of support sliding ring (4) internal surface, and install arc vaulting pole (6) at esterification equipment (5) top, and install hemisphere material jar (7) at arc vaulting pole (6) top, its characterized in that: the esterification apparatus (5) comprises:
the protective barrel (51), this protective barrel (51) have cyclic annular barrel, and install in the spherical shell (52) of esterifying of cyclic annular barrel internal surface intermediate position, and install in the spiral wind rail (53) of cyclic annular barrel top and bottom, and install in the export (54) of the spherical shell (52) bottom intermediate position of esterifying, and install in the mixed member bar (55) of the spherical shell (52) top intermediate position of esterifying, and install in the spherical shell (52) top of esterifying and be located annotate material pipe fitting (56) of mixed member bar (55) both sides.
2. The apparatus of claim 1, wherein the apparatus comprises: 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 positioned in the inner cavity of the spiral air rail (53).
3. The apparatus of claim 1, wherein the apparatus comprises: the mixing rod (55) comprises:
the main mixing pipe (551) is provided with a hollow pipe, and wind flow fan blades (552) which are arranged on the outer surface of the hollow pipe and are positioned at the top of the esterification spherical shell (52) are arranged on the outer surface of the hollow pipe, and a filling device (553) is arranged at the bottom of the hollow pipe.
4. The apparatus of claim 3, wherein the apparatus comprises: the packing means (553) comprises:
the connector pipe (A1), this connector pipe (A1) have the column pipe fitting, and install at branch pipe (A2) of column pipe fitting surface bottom, and set up in the filler hole (A3) of branch pipe (A2) surface, and install closing rod (A4) of branch pipe (A2) internal surface, and install closing rod (A4) keeps away from the mixed ball (A5) of branch pipe (A2) one end, and the cover is established tighten up spring (A6) at branch pipe (A2) surface.
5. The apparatus of claim 4, wherein the apparatus comprises: the outer surface of the mixing main pipe (551) is located between the spiral wind rails (53), the wind flow fan blades (552) are located above the spiral wind rails (53), the top end of the branch flow guide pipe (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).
6. The apparatus of claim 1, wherein the apparatus comprises: the injection pipe (56) comprises:
annotate material pipe (561), this notes material pipe (561) have the return bend pipe fitting, and install the return bend pipe fitting is close to sealing ring (562) of mixing member (55) one end, and install sealing ring (562) keep away from telescopic link (563) of return bend pipe fitting one side, and install telescopic link (563) keep away from spherical end plate (564) of sealing ring (562) one end, and install spherical end plate (564) are close to one side of sealing ring (562) and are located sealing plug (565) of telescopic link (563) intermediate position.
7. The apparatus of claim 6, wherein the apparatus comprises: the top end of the material 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 material 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).
8. A preparation process of cellulose citrate phthalate is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: filling citric acid in a hemispherical charging bucket (7), and simultaneously filling cellulose through a material injection 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: the esterification device (5) is pushed along the track slide bar (3) through the supporting slide ring (4), so that the esterification device (5) is positioned right above the fan (2);
step three: starting a fan (2) to infuse air flow, wherein the air flow rises along the protective cylinder (51) and rises from the outer surface of the esterification spherical shell (52) to blow the air flow fan blade (552), and the air flow fan blade (552) is driven to rotate by the air flow;
step four: the wind flow fan blade (552) drives the mixing main pipe (551) to rotate, and further drives the filling 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 closing rod (A4) to extend out along the branch flow guide pipe (A2) through centrifugal force, the filling hole (A3) is opened, and citric acid in the hemispherical charging bucket (7) is guided through the mixing main pipe (551), the joint pipe (A1) and the branch flow guide pipe (A2) and flows out through the filling hole (A3);
step six: the citric acid and the cellulose are subjected to continuous mixing reaction through the rotation of the mixing ball (A5), the esterification is completed, heat is generated, air is expanded by utilizing the heat to extrude the spherical end plate (564), and 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 guide disc (1) along the track slide rod (3), and a guide outlet (54) at the bottom of the esterification spherical shell (52) is opened to guide out a finished product, so that the processing is finished.
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| CN113976059B (en) | 2024-01-05 |
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