Concentrating kettle for preservative production with waste heat utilization effect

Abstract

The utility model discloses a kind of concentrated stills with waste heat utilization effect for preservative production, including cauldron body, stirring main shaft is rotatably installed in the cauldron body, and there are several stirring auxiliary rods evenly distributed on stirring main shaft, the inside of each stirring auxiliary rod is paved with electric heating wire, motor that drives stirring main shaft rotation is installed on the cauldron body, the periphery of cauldron body is equipped with hollow sleeve, and between the exhaust port of cauldron body side wall and hollow sleeve is communicated by elbow, exhaust fan is also installed in the elbow, the bottom end of hollow sleeve is connected with water tank by exhaust pipe. The utility model can quickly discharge the heat steam generated in cauldron body into the inside of hollow sleeve by setting exhaust fan, heat steam can be used for heat preservation of cauldron body when flowing in hollow sleeve, reduce the loss of heat outside cauldron body, not only reach the effect that heat steam is discharged outside cauldron body in time, but also make full use of the heat of heat steam, and liquid water after heat steam condensation can be collected and handled uniformly by water tank.

Description

Technical Field

[0001] This utility model relates to the field of preservative production and processing technology, and in particular to a concentration kettle for preservative production with waste heat utilization effect. Background Technology

[0002] In the food processing industry, compound preservatives are widely used in the field of food preservation due to the synergistic effect of their multiple components. The production of compound preservatives generally includes the following processes: raw material mixing, dissolving, filtering, pH adjustment, concentration and crystallization. Among these, a concentration kettle is required when producing compound preservatives through concentration and crystallization.

[0003] Currently, when using a concentration kettle, the solvent (water) in the material is evaporated and discharged by heating and stirring, thereby achieving the effect of concentration and crystallization. However, the steam generated during heating in existing concentration kettles is not easy to be discharged quickly outside the kettle, which affects the efficiency of concentration and crystallization. At the same time, the water vapor discharged outside the kettle is directly lost into the air, making it difficult to utilize the residual heat.

[0004] To address these issues, we propose a preservative production concentration vessel with waste heat utilization capabilities. Utility Model Content

[0005] The purpose of this invention is to provide a concentration kettle for preservative production with waste heat utilization, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A concentration vessel for preservative production with waste heat utilization function includes a vessel body. A stirring main shaft is rotatably installed inside the vessel body, and several stirring auxiliary rods are evenly distributed on the stirring main shaft. Each stirring auxiliary rod is lined with an electric heating wire. A motor that drives the stirring main shaft to rotate is installed on the vessel body. A hollow sleeve is provided around the vessel body, and the exhaust port on the side wall of the vessel body is connected to the hollow sleeve through a bend pipe. An exhaust fan is also installed inside the bend pipe. A water tank is connected to the bottom end of the hollow sleeve through an exhaust pipe. A temperature sensor is provided on the surface of the stirring main shaft.

[0008] In a further embodiment, spiral blades are distributed between the interior of the hollow sleeve and the outer wall of the vessel body, and the spiral blades divide the inner cavity of the hollow sleeve into spiral air channels.

[0009] In a further embodiment, a return pipe runs through the interior of the water tank, and the top end of the return pipe is connected to the interior of the hollow sleeve. A water pump and an inlet pipe are also installed between the bottom of the hollow sleeve and the water tank.

[0010] In a further embodiment, the exhaust pipe is connected to the water tank via a control valve.

[0011] In a further embodiment, the top end of the return pipe is connected to the upper edge of the hollow sleeve via a control valve.

[0012] In a further embodiment, a scraper is connected to the bottom end of the stirring spindle. The scraper has a V-shaped structure and is tightly fitted to the inner wall of the vessel.

[0013] In a further embodiment, the stirring spindle is hollow inside, and a bevel gear ring is coaxially fixed to the top of the stirring spindle. The output shaft of the motor is connected to a bevel gear, and the bevel gear meshes with the bevel gear ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses an exhaust fan to quickly discharge the hot steam generated inside the reactor into the hollow sleeve. As the hot steam flows inside the hollow sleeve, it can keep the reactor warm and reduce heat loss outside the reactor. This not only achieves the effect of timely discharge of hot steam from the reactor and improves the efficiency of concentration and crystallization, but also makes full use of the heat of the hot steam. Furthermore, the liquid water after the hot steam is condensed can be collected and treated in a water tank, making it more environmentally friendly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the hollow sleeve structure after partial cross-section.

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention after cross-section;

[0019] Figure 4 This is a front view cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Reactor body; 2. Stirring shaft; 21. Scraper; 3. Stirring rod; 31. Heating wire; 4. Motor; 41. Bevel gear; 42. Bevel gear ring; 5. Hollow sleeve; 6. Exhaust fan; 7. Spiral blade; 8. Spiral air passage; 9. Exhaust pipe; 10. Control valve one; 11. Water tank; 12. Water pump; 13. Inlet pipe; 14. Return pipe; 15. Control valve two; 16. Temperature sensor. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 3-4A concentration vessel for preservative production with waste heat utilization includes a vessel body 1. A stirring shaft 2 is rotatably mounted inside the vessel body 1, and several stirring rods 3 are evenly distributed on the stirring shaft 2. Each stirring rod 3 has a heating wire 31 inside, allowing the stirring rods 3 to not only accelerate material mixing but also heat the material and accelerate the evaporation of solvents within it. A motor 4 is installed on the vessel body 1 to drive the stirring shaft 2. A hollow sleeve 5 surrounds the outer wall of the vessel body 1, and the exhaust port on the side wall of the vessel body 1 is connected to the hollow sleeve 5 via a bent pipe. An exhaust fan 6 is installed inside the bent pipe, guiding the evaporated hot steam into the hollow sleeve 5 through the bent pipe, thereby utilizing the heat of the steam. Heat is used to insulate the outside of the vessel body 1. The bottom end of the hollow sleeve 5 is connected to a water tank 11 through an exhaust pipe 9. After the hot steam condenses, it forms liquid water which can enter the water tank 11 through the exhaust pipe 9 for unified storage. The surface of the stirring shaft 2 is equipped with a temperature sensor 16, which is used to monitor the temperature of the material inside the vessel in real time. The temperature sensor 16 is connected to an external temperature controller (not shown) through a wire. The temperature controller automatically adjusts the power output of the heating wire 31 according to the set temperature to avoid overheating or insufficient evaporation to adjust the heating power. When the temperature sensor 16 detects that the temperature inside the vessel exceeds the set threshold, the temperature controller reduces the power of the heating wire 31 and increases the speed of the exhaust fan 6 to accelerate the steam discharge. When the temperature is lower than the set value, the heating power is increased and the exhaust is slowed down to ensure a stable and efficient concentration process.

[0025] Please see Figure 2-4 In order to make full use of the heat of the hot steam, spiral blades 7 are distributed between the inside of the hollow sleeve 5 and the outer wall of the vessel body 1. The spiral blades 7 divide the inner cavity of the hollow sleeve 5 into spiral air channels 8, thereby expanding the flow path of the hot steam in the hollow sleeve 5, extending the flow time of the hot steam in the hollow sleeve 5, and facilitating full heat exchange between the hot steam and the outer wall of the vessel body 1 and the spiral blades 7.

[0026] Please see Figure 1Considering that the temperature of the concentration vessel needs to be reduced during crystallization, a return pipe 14 is installed inside the water tank 11 to facilitate rapid cooling. The top end of the return pipe 14 is connected to the inside of the hollow sleeve 5. A water pump 12 and an inlet pipe 13 are installed between the bottom of the hollow sleeve 5 and the water tank 11. The water pump 12 transports water from the water tank 11 to the inside of the hollow sleeve 5 through the inlet pipe 13, and finally flows back to the water tank 11 through the return pipe 14, completing the cooling water circulation. Specifically, the water tank 11... It is also equipped with a liquid inlet and a liquid outlet to facilitate the adjustment of the water volume in the water tank 11 or the addition of water at a lower temperature to ensure the cooling effect. In order to prevent mutual interference between the cooling water circulation and the hot steam flow, the exhaust pipe 9 and the water tank 11 are connected by a control valve 10 to prevent the cooling water from being discharged from the exhaust pipe 9 to the water tank 11 during the circulation. The top of the return pipe 14 is connected to the upper edge of the hollow sleeve 5 by a control valve 15 to prevent hot steam from directly entering the water tank 11 from the return pipe 14.

[0027] Please see Figure 3-4 In order to facilitate the discharge of the crystallized material in the later stage, a scraper 21 is connected to the bottom end of the stirring main shaft 2. The scraper 21 adopts a V-shaped structure and is closely attached to the inner wall of the vessel body 1, so as to scrape off the material in the vessel body 1 during rotation, thereby accelerating its discharge.

[0028] Please see Figure 1 and Figure 3-4 To facilitate control of the rotation of the stirring shaft 2, the interior of the stirring shaft 2 is hollow, which makes it easy to thread and wire the heating wire 31. A bevel gear ring 42 is coaxially fixed at the top of the stirring shaft 2. The output shaft of the motor 4 is connected to a bevel gear 41, and the bevel gear 41 and the bevel gear ring 42 mesh with each other, so as to ensure that the normal use of the wire is not affected when the stirring shaft 2 is driven to rotate.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concentration vessel for producing a preservative with waste heat utilization effect, comprising a vessel body (1), characterized in that: The vessel body (1) is equipped with a rotating stirring shaft (2), and a number of stirring auxiliary rods (3) are evenly distributed on the stirring shaft (2). Each stirring auxiliary rod (3) is equipped with an electric heating wire (31). The vessel body (1) is equipped with a motor (4) that drives the stirring shaft (2) to rotate. The vessel body (1) is equipped with a hollow sleeve (5) on its periphery. The exhaust port on the side wall of the vessel body (1) is connected to the hollow sleeve (5) through a bent pipe. An exhaust fan (6) is also installed in the bent pipe. The bottom end of the hollow sleeve (5) is connected to a water tank (11) through an exhaust pipe (9). A temperature sensor (16) is provided on the surface of the stirring shaft (2).

2. The concentration kettle for preservative production with waste heat utilization effect according to claim 1, characterized in that: Helical blades (7) are distributed between the interior of the hollow sleeve (5) and the outer wall of the vessel body (1), and the helical blades (7) divide the inner cavity of the hollow sleeve (5) into helical air passages (8).

3. The concentration kettle for preservative production with waste heat utilization effect according to claim 1, characterized in that: The water tank (11) has a return pipe (14) running through its interior, and the top of the return pipe (14) is connected to the interior of the hollow sleeve (5). A water pump (12) and an inlet pipe (13) are also installed between the bottom of the hollow sleeve (5) and the water tank (11).

4. A concentration kettle for preservative production with waste heat utilization effect according to claim 3, characterized in that: The exhaust pipe (9) is connected to the water tank (11) via a control valve (10).

5. A concentration kettle for preservative production with waste heat utilization effect according to claim 3, characterized in that: The top end of the return pipe (14) is connected to the upper edge of the hollow sleeve (5) via control valve two (15).

6. A concentration kettle for preservative production with waste heat utilization effect according to claim 1, characterized in that: The bottom end of the stirring shaft (2) is connected to a scraper (21), which has a V-shaped structure and is tightly fitted to the inner wall of the vessel body (1).

7. A concentration kettle for preservative production with waste heat utilization effect according to claim 1, characterized in that: The stirring shaft (2) is hollow inside, and a bevel gear ring (42) is coaxially fixed at the top of the stirring shaft (2). The output shaft of the motor (4) is connected to a bevel gear (41), and the bevel gear (41) meshes with the bevel gear ring (42).

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