Hydrochloric acid hydrolysis reaction device for producing glucosamine

Abstract

The hydrochloric acid hydrolysis reaction device comprises a kettle body, a jacket is arranged at the kettle body, a heating pipe is arranged in the jacket, a steam inlet and a steam outlet are formed in the kettle body, a discharging opening is formed in the bottom of the kettle body, a motor is installed at the kettle body, and an output shaft of the motor is connected with a stirring rod. The kettle body is provided with a feeding hole, an acid adding interface, a vacuumizing interface and a tail gas interface, a feeding barrel which is positioned in the kettle body and is fixedly connected with the kettle body is mounted at the feeding hole, openings are formed in the top and the bottom of the feeding barrel, and a feeding cover unit is detachably mounted at the feeding hole. According to the reaction device, the vacuum pump connector is arranged, so that a vacuum pump is conveniently connected, the vacuum pump is opened while the feeding opening is opened, acid mist is prevented from overflowing from the feeding opening, and the damage of the acid mist to feeding personnel is prevented. A feeding cover unit is arranged at the feeding opening, and when the feeding cover unit is opened, a bottom baffle can seal the feeding barrel, so that acid mist is prevented from overflowing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reaction device, more particularly to a kind of hydrochloric acid hydrolysis reaction device for producing glucosamine. BACKGROUND

[0002] In the process of hydrochloric acid hydrolysis reaction for producing glucosamine, chitin and concentrated hydrochloric acid react in the reaction device to produce glucosamine and other by-products. During the reaction process, the stirring device continuously stirs the reaction materials to ensure their uniform mixing.

[0003] In the process of processing glucosamine, when chitin is hydrolyzed with concentrated hydrochloric acid, a large amount of acid mist is generated in the reaction device. However, during the feeding process, the feeding personnel need to open the feeding port to add chitin, and the acid mist will overflow from the feeding port, so the feeding operation undoubtedly increases the harm of acid mist to the feeding personnel. Even if the feeding personnel wear protective clothing, the protective effect may be greatly reduced when facing high-concentration acid mist, and it is difficult to completely avoid the harm of acid mist to the human body. SUMMARY

[0004] The utility model aims at overcoming the defects of prior art, and provides a kind of hydrochloric acid hydrolysis reaction device for producing glucosamine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of hydrochloric acid hydrolysis reaction device for producing glucosamine, including kettle body, the kettle body is provided with jacket, the jacket is provided with heating pipe, the kettle body is provided with steam inlet connected with heating pipe and steam outlet connected with heating pipe, the bottom of the kettle body is provided with discharge port, the kettle body is installed motor, the output shaft of the motor is connected with the stirring rod that extends into the kettle body interior, the kettle body is provided with feeding port, acid-adding interface, vacuumizing interface, tail gas interface, the feeding port is installed in kettle body and is fixedly connected with the feeding barrel in the kettle body, the top and bottom of the feeding barrel are opened, the feeding port is detachably installed with feeding cover unit, the feeding cover unit includes the top cover that can close the top opening of feeding barrel, the inner wall of the feeding barrel has sleeve, the top cover is connected with the guide rod inserted into the sleeve, the guide rod is connected with the bottom baffle that can close the bottom opening of feeding barrel, the length of the guide rod is greater than the height of the feeding barrel.

[0006] Further, the feeding cover unit is detachably fixed at the kettle body through the fixing unit, the fixing unit includes two fixed seats fixedly connected with the kettle body, a pin shaft installed between the two fixed seats, a fixing buckle connected with the pin shaft and a fixing bolt installed at the fixing buckle, the structure of the fixing buckle is L-shaped, the fixing buckle can rotate around the pin shaft, the top of the top cover is provided with a fixed plate, and the fixed plate is provided with a threaded hole matched with the fixing bolt.

[0007] This makes it easy to open and close the feeding cover unit.

[0008] Furthermore, the feed hopper is cylindrical, and the cross-sections of the top cover and the bottom baffle are both circular. The diameter of the top cover is larger than the diameter of the top opening of the feed hopper, and the diameter of the bottom baffle is larger than the diameter of the bottom opening of the feed hopper.

[0009] Thus, the top cover can close the top opening of the feed hopper, and the bottom baffle can close the bottom opening of the feed hopper.

[0010] Furthermore, the feed hopper has multiple sleeves, and multiple guide rods are connected between the top cover and the bottom baffle. The number of guide rods is the same as the number of sleeves and they correspond one-to-one. The guide rods are inserted into the corresponding sleeves.

[0011] This makes pulling the top cover easier and smoother.

[0012] Furthermore, the top cover has an observation window and a handle.

[0013] The observation window facilitates observation of the contents of the vessel, and the handle makes it easy to lift the top cover.

[0014] Furthermore, the vessel body has a spare interface.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The reaction apparatus of this application is equipped with a vacuum pump interface, which facilitates the connection of a vacuum pump. The vacuum pump is turned on at the same time as the feed port is opened, thereby preventing acid mist from overflowing from the feed port and thus preventing the acid mist from harming the feeding personnel.

[0017] The reaction apparatus of this application is equipped with a feeding cover unit at the feeding port. When the feeding cover unit is opened, the bottom baffle will close the feeding tank, thereby preventing the overflow of acid mist. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the reaction apparatus;

[0019] Figure 2 This is a magnified view of region A;

[0020] Figure 3 for Figure 1 Another perspective illustration;

[0021] Figure 4 This is a cross-sectional view of the reaction apparatus;

[0022] Figure 5 This is a magnified view of region B.

[0023] Figure 6 Reaction device sectional view for opening the feeding cover unit;

[0024] Figure 7 Enlarged view of C area;

[0025] Figure 8 Another perspective view of Figure 6

[0026] Figure 9 Enlarged view of D area;

[0027] For the sake of clarity, Figure 6 ,The stirring rod is hidden in Figure 8

[0028] Explanation of reference signs: kettle body 1;Steam inlet 1.1;Steam outlet 1.2;Discharge port 1.3;Add acid interface 2.1;Vacuum extraction interface 2.2;Tail gas interface 2.3;Standby interface 2.4;Motor 3;Feeding barrel 4;Sleeve 4.1;Top cover 5;Fixed plate 5.1;Screw hole 5.2;Observation window 5.3;Handle 5.4;Guide rod 6;Bottom baffle 7;Fixed seat 8.1;Pin shaft 8.2;Fixed buckle 8.3;Fixed bolt 8.4. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] The present application provides a Figures 1-9 ​The device for producing glucosamine hydrochloride hydrolysis reaction device, including kettle body 1, the kettle body 1 has a jacket, the jacket has heating pipe, the kettle body 1 has steam inlet 1.1 connected with heating pipe and steam outlet 1.2 connected with heating pipe, the bottom of the kettle body 1 has a discharge port 1.3, the kettle body is installed motor 3, the output shaft of the motor 3 is connected with the stirring rod that extends into the kettle body 1 inside, the kettle body has a feeding port, acid interface 2.1, vacuum interface 2.2, tail gas interface 2.3, the feeding port is installed in the kettle body 1 and is fixedly connected with the feed barrel 4 in the kettle body 1, the top and bottom of the feed barrel 4 are opened, the feeding port is detachably installed with feeding cover unit, the feeding cover unit includes the top cover 5 capable of closing the top opening of the feed barrel 4, the inner wall of the feed barrel 4 has a sleeve 4.1, the top cover 5 is connected with the guide rod 6 inserted into the sleeve 4.1, the guide rod 6 is connected with the bottom baffle 7 capable of closing the bottom opening of the feed barrel 4, the length of the guide rod 6 is greater than the height of the feed barrel 4.

[0031] The feeding cover unit is detachably fixed at the kettle body 1 by the fixing unit, the fixing unit includes two fixed seats 8.1 fixedly connected with the kettle body 1, a pin shaft 8.2 installed between the two fixed seats 8.1, a fixed buckle 8.3 connected with the pin shaft 8.2 and a fixed bolt 8.4 installed at the fixed buckle 8.3, the structure of the fixed buckle 8.3 is L-shaped, the fixed buckle 8.3 can rotate around the pin shaft 8.2, the top of the top cover 5 has a fixed plate 5.1, the fixed plate 5.1 has a threaded hole 5.2 matched with the fixed bolt 8.4. The feed barrel 4 is cylindrical, the cross section of the top cover 5 and the cross section of the bottom baffle 7 are circular, the diameter of the top cover 5 is greater than the diameter of the top opening of the feed barrel 4, and the diameter of the bottom baffle 7 is greater than the diameter of the bottom opening of the feed barrel 4. The feed barrel 4 has a plurality of sleeves 4.1, a plurality of guide rods 6 are connected between the top cover 5 and the bottom baffle 7, the number of the guide rods 6 is the same as that of the sleeves 4.1 and one-to-one correspondence, and the guide rods 6 are inserted into the corresponding sleeves 4.1. The top cover 5 has an observation window 5.3 and a handle 5.4. The kettle body 1 has a spare interface 2.4.

[0032] Working Principle: To prevent acid fumes from harming personnel, the reaction apparatus of this application is equipped with a vacuum interface for connecting a vacuum pump. The vacuum pump is activated simultaneously with the feed port to prevent acid fumes from overflowing. A feed cap unit is also installed at the feed port. Pulling the top cap closes the bottom baffle of the feed tank, preventing acid fumes from escaping. The operator adds chitosan from the feed tank, filling it completely. The feed cap unit is then replaced and secured, allowing chitosan to leak into the reaction apparatus through a gap at the bottom. The cooperation between the vacuum pump and the feed cap unit protects the personnel. To open the feed cap unit, first loosen the fixing bolts, then rotate the fixing buckle to disengage it from the top cap, and then pull the handle to open it. Closing the feed cap unit is achieved by reversing the steps.

[0033] Although the present invention has illustrated and described preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A hydrochloric acid hydrolysis reaction apparatus for producing glucosamine, characterized in that, The apparatus includes a vessel body with a jacket containing a heating tube. The vessel body has a steam inlet and an outlet connected to the heating tube. A discharge port is located at the bottom of the vessel body. A motor is installed in the vessel body, and the motor's output shaft is connected to a stirring rod extending into the vessel body. The vessel body also has a feed port, an acid addition port, a vacuum port, and a tail gas port. A feed container, located within the vessel body and fixedly connected to it, is installed at the feed port. The feed container has openings at both the top and bottom. A feed cover unit is detachably installed at the feed port. The feed cover unit includes a top cover capable of closing the top opening of the feed container. The inner wall of the feed container has a sleeve. A guide rod inserted into the sleeve is connected to the top cover. The guide rod is connected to a bottom baffle capable of closing the bottom opening of the feed container. The length of the guide rod is greater than the height of the feed container.

2. The hydrochloric acid hydrolysis reaction apparatus for producing glucosamine according to claim 1, characterized in that, The feeding cover unit is detachably fixed to the vessel body via a fixing unit. The fixing unit includes two fixing seats fixedly connected to the vessel body, a pin installed between the two fixing seats, a fixing buckle connected to the pin, and a fixing bolt installed at the fixing buckle. The fixing buckle has an L-shaped structure and can rotate around the pin. The top of the cover has a fixing plate, and the fixing plate has a threaded hole that mates with the fixing bolt.

3. The hydrochloric acid hydrolysis reaction apparatus for producing glucosamine according to claim 1, characterized in that, The feed hopper is cylindrical, and the cross-sections of the top cover and the bottom baffle are both circular. The diameter of the top cover is larger than the diameter of the top opening of the feed hopper, and the diameter of the bottom baffle is larger than the diameter of the bottom opening of the feed hopper.

4. The hydrochloric acid hydrolysis reaction apparatus for producing glucosamine according to claim 1, characterized in that, The feed hopper contains multiple sleeves, and multiple guide rods are connected between the top cover and the bottom baffle. The number of guide rods is the same as the number of sleeves and they correspond one-to-one. The guide rods are inserted into the corresponding sleeves.

5. The hydrochloric acid hydrolysis reaction apparatus for producing glucosamine according to claim 1, characterized in that, The top cover has an observation window and a handle.

6. The hydrochloric acid hydrolysis reaction apparatus for producing glucosamine according to claim 1, characterized in that, The vessel body has a spare interface.

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