Heating device for citric acid production

By using a combination of lifting disk structure and heating wire in the citric acid production device, the problem of low heat conduction efficiency during the heating process of the mixture is solved, the liquid temperature uniformity and heat transfer efficiency are improved, and the fermentation reaction speed is improved.

CN223127957UActive Publication Date: 2025-07-22TTCA
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Patent Information

Application Number
CN202422407024.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-07-22
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

During the existing citric acid production process, the heat conduction efficiency of the mixed substances is low when heated, resulting in slow heating speed and affecting the fermentation efficiency.

Method used

The lifting disk structure in the tank body is adopted, and the lifting disk is driven by the motor to drive the lifting disk to rotate in the corrugated groove, so as to achieve the stirring and mixing of liquids, combined with the heating wires of the middle and bottom layer to improve the temperature uniformity of the liquid and heat transfer efficiency.

Benefits of technology

The heating speed is accelerated, the reaction efficiency is improved, and the efficiency of the fermentation process is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of citric acid production equipment, and particularly relates to a heating device for citric acid production, which comprises a tank body, a top cover is arranged at the top of the tank body, a motor is fixedly connected to the top of the top cover, a rotating shaft is fixedly connected to the output end of the motor, lifting discs are sleeved on the outer wall of the rotating shaft, and through grooves are formed in the two lifting discs. Limiting blocks are fixedly connected to the inner walls of the two lifting discs, limiting grooves are formed in the outer wall of the rotating shaft, the multiple limiting blocks are located in the multiple limiting grooves respectively, protruding blocks are fixedly connected to the outer walls of the two lifting discs, corrugated grooves are formed in the inner wall of the tank body, the protruding blocks are located in the corrugated grooves, and the tank body is connected with the top cover through bolts. Under the action of the rotating shaft and the corrugated groove, liquid in the tank body is uniformly mixed, molecules in the liquid can be better mixed, and the temperature of the liquid is more uniform, so that the heat transfer efficiency is improved, the heating speed is accelerated, and the reaction efficiency is further improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of citric acid production equipment, and particularly relates to a heating device for citric acid production. Background Art

[0002] Natural citric acid is widely distributed in nature and exists in fruits such as lemons, oranges, and pineapples, as well as in the bones, muscles, and blood of animals. Synthetic citric acid is made by heating and fermenting sugar-containing substances such as granulated sugar, molasses, starch, or grapes.

[0003] In the process of fermentative production of citric acid, a variety of raw materials need to be mixed and then heated and fermented. In the prior art, various raw materials are usually mixed and then naturally heated. During the heating process, since the mixed substances are in a static state, the heat conduction efficiency is low, the heating speed is slow, and the time consumption is long, resulting in a low fermentation efficiency, thus affecting the reaction efficiency of citric acid production. Summary of the Invention

[0004] The purpose of the utility model is to provide a heating device for citric acid production, which can make the liquid in the tank body mix evenly, and can make the molecules in the liquid mix better, make the temperature of the liquid more uniform, thereby improving the heat transfer efficiency, accelerating the heating speed, and further improving the reaction efficiency.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is: to provide a heating device for citric acid production, including a tank body, a top cover is arranged at the top of the tank body, a motor is fixedly connected to the top of the top cover, a rotating shaft is fixedly connected to the output end of the motor, a lifting disc is sleeved on the outer wall of the rotating shaft, and the number of lifting discs is two. Through grooves are opened in the interiors of the two lifting discs, and the number of through grooves is multiple. Limit blocks are fixedly connected to the inner walls of the two lifting discs, and the number of limit blocks is multiple. Limit grooves are opened on the outer wall of the rotating shaft, and the number of limit grooves is multiple. The multiple limit blocks are respectively located in the multiple limit grooves. Protrusions are fixedly connected to the outer walls of the two lifting discs, and the number of protrusions is multiple. A corrugated groove is opened on the inner wall of the tank body, and the protrusions are located in the corrugated groove. The tank body and the top cover are connected by bolts.

[0006] Optionally, a middle heating wire is fixedly connected to the inner wall of the tank body, a bottom heating wire is fixedly connected to the bottom of the inner wall of the tank body, and the number of bottom heating wires is multiple. The multiple bottom heating wires are arranged from the inside to the outside.

[0007] Optionally, a feed pipe is fixedly connected to the top of the top cover, and the number of feed pipes is two. Feed solenoid valves are fixedly connected to the outer walls of the two feed pipes.

[0008] Optionally, a liquid discharge pipe is fixedly connected to the outer wall of the tank body, and a liquid discharge solenoid valve is fixedly connected to the top of the liquid discharge pipe.

[0009] Optionally, the bottom of the tank body is fixedly connected with supporting feet, and the number of the supporting feet is multiple. Shock pads are fixedly connected to the bottoms of the multiple supporting feet.

[0010] Optionally, the rotating shaft extends into the tank body. The middle heating wire is located in the middle of the inner wall of the tank body. The two feed pipes are respectively located on both sides of the motor.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] When the utility model is in use, during the process of mixing, heating and fermenting multiple liquid raw materials in the tank body, the motor runs, and the output end of the motor drives the rotating shaft to rotate. Since a plurality of limiting blocks connected to the inner walls of the two lifting disks sleeved on the outer wall of the rotating shaft are respectively located in a plurality of limiting grooves opened on the outer wall of the rotating shaft, the two lifting disks rotate along with the rotation of the rotating shaft. In the initial state, the two lifting disks are in a relatively close state, and a plurality of convex blocks connected to the outer walls of the two lifting disks are respectively located inside the two corrugated grooves. During the rotation of the two lifting disks along with the rotating shaft, they simultaneously move along the two corrugated grooves, so that the two lifting disks approach and move away repeatedly, thereby stirring the mixed liquid, making the liquid in the tank body mix evenly, enabling the molecules in the liquid to mix better, making the temperature of the liquid more uniform, thereby improving the heat transfer efficiency, accelerating the heating speed, and thus improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a first - perspective three - dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 It is a three - dimensional structure schematic diagram inside the tank body of the present utility model;

[0016] Figure 3 It is a three - dimensional structure schematic diagram of the lifting ring of the present utility model;

[0017] Figure 4 It is a three - dimensional structure schematic diagram of the rotating shaft of the present utility model;

[0018] Figure 5 It is a front - view partial sectional structure schematic diagram of the present utility model;

[0019] Figure 6 This is a schematic cross-sectional three-dimensional structure diagram of the present utility model.

[0020] In the figure: 1. Tank body; 2. Top cover; 3. Motor; 4. Rotating shaft; 5. Lifting disc; 6. Through groove; 7. Limiting block; 8. Limiting groove; 9. Convex block; 10. Corrugated groove; 11. Bolt; 12. Middle layer heating wire; 13. Bottom layer heating wire; 14. Feed pipe; 15. Feed solenoid valve; 16. Drain pipe; 17. Drain solenoid valve; 18. Support feet; 19. Shock pad. Specific embodiments

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0025] Refer to Figure 1-6, a heating device for citric acid production provided by an embodiment of the present utility model will be described. A heating device for citric acid production includes a tank body 1, a top cover 2 is arranged at the top of the tank body 1, a motor 3 is fixedly connected to the top of the top cover 2, an output end of the motor 3 is fixedly connected to a rotating shaft 4, the rotating shaft 4 extends into the interior of the tank body 1, a lifting disc 5 is sleeved on the outer wall of the rotating shaft 4, and the number of the lifting discs 5 is two. Through grooves 6 are formed in the interiors of the two lifting discs 5, and the number of the through grooves 6 is multiple. Limiting blocks 7 are fixedly connected to the inner walls of the two lifting discs 5, and the number of the limiting blocks 7 is multiple. Limiting grooves 8 are formed in the outer wall of the rotating shaft 4, and the number of the limiting grooves 8 is multiple. The multiple limiting blocks 7 are respectively located in the multiple limiting grooves 8. Protrusions 9 are fixedly connected to the outer walls of the two lifting discs 5, and the number of the protrusions 9 is multiple. A corrugated groove 10 is formed in the inner wall of the tank body 1, and the protrusions 9 are located in the corrugated groove 10. The tank body 1 and the top cover 2 are connected by bolts 11. A middle heating wire 12 is fixedly connected to the inner wall of the tank body 1, and the middle heating wire 12 is located in the middle of the inner wall of the tank body 1. A bottom heating wire 13 is fixedly connected to the bottom of the inner wall of the tank body 1, and the number of the bottom heating wires 13 is multiple. The multiple bottom heating wires 13 are arranged from the inside to the outside.

[0026] During the process of mixing and heating fermentation of multiple liquids in the tank body 1, the motor 3 operates, and the output end of the motor 3 drives the rotating shaft 4 to rotate. Since multiple limiting blocks 7 connected to the inner walls of the two lifting discs 5 sleeved on the outer wall of the rotating shaft 4 are respectively located in multiple limiting grooves 8 formed in the outer wall of the rotating shaft 4, the two lifting discs 5 rotate along with the rotation of the rotating shaft 4. In the initial state, the two lifting discs 5 are in a relatively close state, and multiple protrusions 9 connected to the outer walls of the two lifting discs 5 are respectively located in the two corrugated grooves 10. During the rotation of the two lifting discs 5 along with the rotating shaft 4, they simultaneously move along the two corrugated grooves 10, causing the two lifting discs 5 to repeatedly approach and move away, stirring the mixed liquid, enabling better mixing of the molecules in the liquid, making the liquid in the tank body 1 mix evenly, thereby making the temperature of the liquid more uniform, further improving the heat transfer efficiency, accelerating the heating speed, and thus improving the reaction efficiency.

[0027] In another embodiment of the present utility model, please refer to Figure 1 , a feed pipe 14 is fixedly connected to the top of the top cover 2, and the number of the feed pipes 14 is two. The two feed pipes 14 are respectively located on both sides of the motor 3. Liquids enter the tank body 1 through the two feed pipes 14 for mixing. Feed solenoid valves 15 are fixedly connected to the outer walls of the two feed pipes 14. A drain pipe 16 is fixedly connected to the outer wall of the tank body 1. The fermented liquid is discharged from the tank body 1 through the drain pipe 16. A drain solenoid valve 17 is fixedly connected to the top of the drain pipe 16. Support feet 18 are fixedly connected to the bottom of the tank body 1, and the number of the support feet 18 is multiple. Shock pads 19 are fixedly connected to the bottoms of the multiple support feet 18, which can reduce the vibration of the tank body 1.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heating device for citric acid production, comprising a tank body (1), characterized in that: A top cover (2) is provided at the top of the tank body (1). A motor (3) is fixedly connected to the top of the top cover (2). The output end of the motor (3) is fixedly connected to a rotating shaft (4). A lifting disc (5) is sleeved on the outer wall of the rotating shaft (4), and the number of the lifting discs (5) is two. Through grooves (6) are formed in the interiors of the two lifting discs (5), and the number of the through grooves (6) is multiple. Limiting blocks (7) are fixedly connected to the inner walls of the two lifting discs (5), and the number of the limiting blocks (7) is multiple. Limiting grooves (8) are formed in the outer wall of the rotating shaft (4), and the number of the limiting grooves (8) is multiple. The multiple limiting blocks (7) are respectively located in the multiple limiting grooves (8). Protrusions (9) are fixedly connected to the outer walls of the two lifting discs (5), and the number of the protrusions (9) is multiple. A corrugated groove (10) is formed in the inner wall of the tank body (1). The protrusions (9) are located in the corrugated groove (10). The tank body (1) and the top cover (2) are connected by bolts (11).

2. The heating device for citric acid production according to claim 1, characterized in that: A middle layer heating wire (12) is fixedly connected to the inner wall of the tank body (1). A bottom layer heating wire (13) is fixedly connected to the bottom of the inner wall of the tank body (1), and the number of the bottom layer heating wires (13) is multiple. The multiple bottom layer heating wires (13) are arranged from the inside to the outside.

3. The heating device for citric acid production according to claim 2, characterized in that: Feeding pipes (14) are fixedly connected to the top of the top cover (2), and the number of the feeding pipes (14) is two. Feeding electromagnetic valves (15) are fixedly connected to the outer walls of the two feeding pipes (14).

4. The heating device for citric acid production according to claim 1, characterized in that: A liquid discharge pipe (16) is fixedly connected to the outer wall of the tank body (1). A liquid discharge electromagnetic valve (17) is fixedly connected to the top of the liquid discharge pipe (16).

5. A heating device for citric acid production according to claim 1, characterized in that: Support feet (18) are fixedly connected to the bottom of the tank body (1), and the number of the support feet (18) is multiple. Shock pads (19) are fixedly connected to the bottoms of the multiple support feet (18).

6. The heating device for citric acid production according to claim 3, wherein: The rotating shaft (4) extends into the tank body (1). The middle layer heating wire (12) is located in the middle of the inner wall of the tank body (1). The two feeding pipes (14) are respectively located on both sides of the motor (3).