CN211913752U

CN211913752U - Sucrose is esterified with mixing reation kettle

Info

Publication number: CN211913752U
Application number: CN201922309136.1U
Authority: CN
Inventors: 陈栋华
Original assignee: Changzhou Feixi Automation Engineering Co ltd
Current assignee: Changzhou Feixi Automation Engineering Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-11-13
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a sucrose is esterified with mixing reation kettle, including reation kettle, the reation kettle outside is equipped with and presss from both sides the cover, press from both sides and be equipped with outer water inlet and the mouth of a river of going out on the cover, last the opening of reation kettle has feed inlet, bottom to be equipped with the discharge gate that passes and press from both sides the cover, and the reation kettle top is connected with rabbling mechanism, rabbling mechanism includes agitator motor, (mixing) shaft, the setting that is connected with agitator motor at the epaxial a plurality of stirring rakes of stirring, the stirring rake is the criss-cross stirring leaf and constitutes, feed inlet department is equipped with feed arrangement, feed arrangement include with feed inlet complex feed rod, the feed rod top is equipped with the promotion motor. When the reaction kettle is used for preparing sucrose ester by a solvent-free method, the raw materials are uniformly mixed, the reaction rate is high, and the product purity is high; simple structure, simple operation.

Description

Sucrose is esterified with mixing reation kettle

Technical Field

The utility model belongs to the technical field of chemical industry equipment, concretely relates to sucrose is esterified with mixing reation kettle.

Background

Sucrose fatty acid ester is a nonionic surfactant, is a simple substance or a mixture generated by esterification reaction of sucrose and fatty acid, has the advantages of no toxicity, easy biodegradation and good indication performance, and is widely used in the industries of food, medicine, daily chemicals, enzyme preparations of bioengineering and the like.

The conventional synthesis of sucrose ester is commonly carried out by a solvent method, a solvent-free method and a microbiological method, wherein the solvent-free method is to directly carry out ester exchange by using sucrose, fatty acid methyl ester and sodium soap without using any solvent, while the solvent-free method is adopted, the biggest difficulty is to fully contact reactants, and the solvent-free method adopting a melting method needs to provide a large amount of energy sources; the solvent-free method of the phase dissolution method is adopted, so that the reaction rate is low; the solvent-free method adopting the heterogeneous method needs to add a surfactant, and has complex post-treatment operation and low purity.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at the defects, the utility model discloses listen to a sucrose esterification and use mixed reaction kettle, adopt the solvent-free method to prepare sucrose ester, raw materials are mixed evenly, reaction rate is fast, product purity is high; simple structure, simple operation.

The utility model provides a technical scheme that its technical problem adopted as follows: the utility model provides a sucrose esterifies with mixing reation kettle includes reation kettle, the reation kettle outside is equipped with the cover of pressing from both sides, press from both sides the cover and be equipped with outer water inlet and go out the mouth of a river, and last the opening of reation kettle has feed inlet, bottom to be equipped with the discharge gate that passes the cover of pressing from both sides, and the reation kettle top is connected with rabbling mechanism, rabbling mechanism includes agitator motor, (mixing) shaft, the setting that is connected with agitator motor at the (mixing) epaxial a plurality of stirring rakes, the stirring rake is the criss-cross stirring leaf and constitutes, feed inlet department is equipped with feed arrangement, feed arrangement include with feed inlet complex feed rod, the feed rod top is equipped with the promotion motor. The stirring paddle made of the crossed stirring blades can form mixing stirring of axial flow and radial flow, reaction raw materials in the reaction kettle are mixed more fully, the contact area between the raw materials is increased, and the reaction rate is improved; liquid raw materials are added through the lifting of the lifting mechanism, so that side reactions caused by high local concentration are avoided, the raw materials are uniformly mixed, more target products are obtained, and the product purity is high; the reaction degree has simple structure and convenient operation.

Furthermore, the middle upper part of the feeding rod is provided with a gas inlet, and the feeding nozzle is an atomizing nozzle. The liquid raw materials can be atomized by arranging the gas inlet for ventilation, the specific surface area of the liquid raw materials when the liquid raw materials are added into a system is increased, and the reaction rate is increased.

Further, the stirring shaft and the stirring paddles are of a hollow structure, an inner water inlet and an inner water outlet are formed in the opening of the stirring shaft above the stirring motor, a water inlet pipe connected with the inner water inlet and a water outlet pipe connected with the inner water outlet are arranged on the stirring shaft, and the water inlet pipe is communicated with the water outlet pipe through a communicating pipe. The esterification reaction is exothermic reaction, and this reation kettle rabbling mechanism is hollow structure, is used for letting in cooling water among the hollow structure, in time takes away the heat of reaction, and the reaction is controllable, and product purity is high, and the yield is high.

Further, the feeding rod is arranged in parallel with the stirring shaft, and the lifting height of the feeding rod under the action of the lifting motor is between the upper plane of the stirring paddle on the uppermost layer and the lower plane of the stirring paddle on the lowermost layer. The lifting height of the lifting mechanism is controlled, so that the raw materials in the reaction kettle are fully disturbed, no reaction dead angle exists, and the contact area between the raw materials is increased.

Further, the lower surface of the reaction kettle is provided with an air blowing hole connected with an air blowing device, and the air blowing hole is formed in the reaction kettle which is centrosymmetric about the stirring shaft; the air blowing device comprises a vent pipe, and a one-way valve is arranged at the outlet of the vent pipe. Through setting up the hole of blowing in following reation kettle from down to block up gas blowing device in preventing solid sucrose from getting into the breather pipe through the check valve, can one-wayly ventilate to reation kettle, further increase the raw materials disturbance in the reation kettle, increase the area of contact of raw materials, improve reaction rate.

The utility model has the advantages that:

1. by adopting the scheme, the stirring paddles made of the crossed stirring blades can form mixing stirring of axial flow and radial flow, so that reaction raw materials in the reaction kettle are mixed more fully, the contact area between the raw materials is increased, and the reaction rate is improved; liquid raw materials are added through the lifting of the lifting mechanism, so that side reactions caused by high local concentration are avoided, the raw materials are uniformly mixed, more target products are obtained, and the product purity is high; the reaction degree structure is simple, and the operation is convenient; the liquid raw materials can be atomized by arranging the gas inlet for ventilation, the specific surface area of the liquid raw materials when the liquid raw materials are added into a system is increased, and the reaction rate is increased; the lifting height of the lifting mechanism is controlled, so that the raw materials in the reaction kettle are fully disturbed, no reaction dead angle exists, and the contact area between the raw materials is increased; through setting up the hole of blowing in following reation kettle from down to block up gas blowing device in preventing solid sucrose from getting into the breather pipe through the check valve, can one-wayly ventilate to reation kettle, further increase the raw materials disturbance in the reation kettle, increase the area of contact of raw materials, improve reaction rate.

2. The esterification reaction is exothermic reaction, and this reation kettle rabbling mechanism is hollow structure, is used for letting in cooling water among the hollow structure, in time takes away the heat of reaction, and the reaction is controllable, and product purity is high, and the yield is high.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of embodiment 2 of the present invention;

wherein: 1 is the reation kettle, 11 is the feed inlet, 12 is the discharge gate, 13 is the hole of blowing, 2 is the jacket, 21 is outer water inlet, 22 is the mouth of a river of going out, 3 is the rabbling mechanism, 31 is agitator motor, 32 is the (mixing) shaft, 33 is the stirring rake, 331 is the stirring leaf, 34 is interior water inlet, 35 is interior delivery port, 36 is the inlet tube, 37 is the outlet pipe, 38 is communicating pipe, 4 is feed arrangement, 41 is the feed rod, 42 is the lifting motor, 43 is the feed nozzle, 44 is gas inlet, 45 is the liquid import, 5 is gas blowing device, 51 is the breather pipe, 52 is the check valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, a mixing reactor for sucrose esterification comprises a reactor 1, a jacket 2 is arranged outside the reactor 1, an outer water inlet 21 and an outer water outlet 22 are arranged on the jacket 2, a feed inlet 11 is arranged on the reaction kettle 1, a discharge outlet 12 penetrating through the jacket 2 is arranged at the bottom of the reaction kettle 1, a stirring mechanism 3 is connected above the reaction kettle 1, the stirring mechanism 3 comprises a stirring motor 31, a stirring shaft 32 connected with the stirring motor 31, and a plurality of stirring paddles 33 arranged on the stirring shaft 32, the stirring paddles 33 are composed of crossed stirring blades 331, the stirring shaft 32 and the stirring paddles 33 are of a hollow structure, an inner water inlet 34 and an inner water outlet 35 are arranged at the opening of the stirring shaft above the stirring motor 31, the stirring shaft 32 is provided with a water inlet pipe 36 connected with the inner water inlet 34 and a water outlet pipe 37 connected with the inner water outlet 35, and the water inlet pipe 36 is communicated with the water outlet pipe 37 through a communicating pipe 38; the feeding device 4 is arranged at the feeding hole 11, the feeding device 4 comprises a feeding rod 41 matched with the feeding hole 11, a lifting motor 42 is arranged above the feeding rod 41, a gas inlet 44 is arranged at the middle upper part of the feeding rod 41, the inlet end is a liquid inlet 45, a feeding nozzle 43 is arranged at the outlet end of the feeding rod 41, and the feeding nozzle 43 is an atomizing nozzle; the feeding rod 41 and the stirring shaft 32 are arranged in parallel, and the lifting height of the feeding rod 41 under the action of the lifting motor 42 is between the upper plane of the stirring paddle 33 at the uppermost layer and the lower plane of the stirring paddle 33 at the lowermost layer.

When the sucrose ester is prepared by a solvent-free method, raw materials of sucrose, fatty acid methyl ester and sodium soap are uniformly mixed under the combined action of the stirring mechanism 3, the lifting motor 42 and the atomizing nozzle 43 in the reaction kettle, the reaction rate is high, and the product purity is high; the reaction kettle is simple in structure and convenient and fast to operate.

Example 2

Referring to fig. 2, the present embodiment is different from embodiment 1 in that the lower surface of reaction vessel 1 is provided with gas blowing holes 13 connected to gas blowing device 5, and gas blowing holes 13 are provided on reaction vessel 1 centrally symmetrical about stirring shaft 32; the air blowing device 5 comprises a vent pipe 51, and a one-way valve 52 is arranged at the outlet of the vent pipe 51.

The setting is from the gas hole 13 of blowing in following reation kettle 1 to block up gas blowing device in preventing solid sucrose from getting into breather pipe 51 through check valve 52, can one-wayly ventilate to reation kettle, further increase the raw materials disturbance in the reation kettle, increase the area of contact of raw materials, improve reaction rate, it is obvious, the raw materials mixing effect of this embodiment is superior to the raw materials mixing effect of embodiment 1.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a sucrose is esterified with mixing reation kettle, includes reation kettle (1), reation kettle (1) outside is equipped with and presss from both sides cover (2), it has outer water inlet (21) and outer mouth of a river (22) to press from both sides to be equipped with on cover (2), and it has feed inlet (11), bottom to be equipped with discharge gate (12) that pass and press from both sides cover (2) to open on reation kettle (1), and reation kettle (1) top is connected with rabbling mechanism (3), rabbling mechanism (3) include agitator motor (31), (mixing) shaft (32) be connected with agitator motor (31), set up a plurality of stirring rake (33) on (mixing) shaft (32), its characterized in that: stirring rake (33) are crossed's stirring leaf (331) and constitute, feed inlet (11) department is equipped with feed arrangement (4), feed arrangement (4) include with feed inlet (11) complex feed rod (41), feed rod (41) top is equipped with elevator motor (42), feed rod (41) exit end is equipped with feed nozzle (43), and the entrance point is liquid inlet (45).

2. The mixing reactor as set forth in claim 1, wherein: the middle upper part of the feeding rod (41) is provided with a gas inlet (44), and the feeding nozzle (43) is an atomizing nozzle.

3. The mixing reactor as set forth in claim 1, wherein: the stirring shaft (32) and the stirring paddles (33) are of a hollow structure, an inner water inlet (34) and an inner water outlet (35) are arranged at the opening of the stirring shaft above the stirring motor (31), a water inlet pipe (36) connected with the inner water inlet (34) and a water outlet pipe (37) connected with the inner water outlet (35) are arranged on the stirring shaft (32), and the water inlet pipe (36) is communicated with the water outlet pipe (37) through a communicating pipe (38).

4. The mixing reactor as set forth in claim 1, wherein: the feeding rod (41) and the stirring shaft (32) are arranged in parallel, and the lifting height of the feeding rod (41) under the action of the lifting motor (42) is between the upper plane of the stirring paddle (33) on the uppermost layer and the lower plane of the stirring paddle (33) on the lowermost layer.

5. The mixing reactor as set forth in claim 1, wherein: the lower surface of the reaction kettle (1) is provided with an air blowing hole (13) connected with an air blowing device (5), and the air blowing hole (13) is arranged on the reaction kettle (1) which is centrosymmetric about the stirring shaft (32); the blowing device (5) comprises a vent pipe (51), and a one-way valve (52) is arranged at the outlet of the vent pipe (51).