A salt-reducing feeding structure applied to low-salt vermicelli

By designing a salt-adding device, the precise measurement and batch addition of salt in the production of low-salt vermicelli were achieved, solving the problems of large errors and high labor costs associated with manual weighing, and improving the degree of automation and stirring efficiency.

CN224308315UActive Publication Date: 2026-06-02NINGXIA HUANGDI AGRI FOOD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA HUANGDI AGRI FOOD CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the production of low-salt vermicelli, manual weighing of salt and salt substitutes is prone to errors, has high labor costs, and is difficult to control precisely.

Method used

Design a salt-reducing feeding structure that includes a salt-adding device. Utilize components such as a first storage tank, a constant-dry conveying pipe, and an overflow pipe, and achieve precise metering and batch feeding of salt through a solenoid valve and an air supply device to avoid human error.

Benefits of technology

It achieves precise salt input, reduces labor costs, improves automation, avoids uneven mixing, and reduces equipment error.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of low-salt vermicelli production technology, and discloses a salt-reducing feeding structure for low-salt vermicelli. By setting up a salt-adding device, which includes a first storage tank, a constant-pressure conveying pipe, and an overflow pipe, these components work together to precisely control the amount of salt added, avoiding measurement errors caused by manual mixing and reducing labor costs, thus improving the automation level of the equipment. Furthermore, this application allows for periodic, multiple salt additions. Compared to a single-time salt addition, the batch-based addition prevents salt from accumulating in one area, reducing subsequent stirring pressure. In this application, the constant-pressure conveying pipe, in conjunction with an air supply device, keeps the inside of the pipe dry, preventing salt particles from adhering to the pipe wall and causing feeding errors. It also utilizes airflow to blow the salt into the mixing tank.
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Description

Technical Field

[0001] This application relates to the field of low-salt vermicelli production technology, specifically to a salt-reducing feeding structure applied to low-salt vermicelli. Background Technology

[0002] Low-salt vermicelli refers to vermicelli products that reduce sodium content by decreasing the amount of salt (sodium chloride) added to traditional vermicelli or by using alternative ingredients. It is primarily targeted at people who need to control their sodium intake (such as those with high blood pressure or cardiovascular disease), while maintaining the vermicelli's texture, flavor, and shelf life as much as possible. Regular vermicelli typically contains 300-600 mg of sodium per 100g, while low-salt vermicelli can reduce sodium content by 30%-70%, or even less.

[0003] Currently, the production process of low-salt vermicelli involves steps such as slurry preparation (thickening), shaping, and cooking and cooling. In the slurry preparation stage, various raw materials (mainly raw starch) are mixed with salt and salt substitutes (primarily small amounts of potassium chloride and natural flavor enhancers). The proportion of salt and its substitutes is relatively low, and the proportions are usually measured manually and poured into the mixing tank. This method is labor-intensive, and manual measurement is prone to errors, potentially leading to uncontrollable amounts of salt and its substitutes being added. Compared to regular vermicelli, low-salt vermicelli requires the use of natural flavor enhancers to replace some of the salt, and the amount of natural flavor enhancers used is even less than that of salt. This further increases the requirements for measurement accuracy. Utility Model Content

[0004] In view of the above problems, this application provides a salt-reducing feeding structure for low-salt vermicelli, which can automatically weigh salt and add it to the mixing tank, thereby saving manpower and reducing human error.

[0005] According to one aspect of the embodiments of this application, a salt-reducing feeding structure for low-salt vermicelli is provided. The salt-reducing feeding structure for low-salt vermicelli includes a mixing tank, a discharge valve at the bottom of the mixing tank, a discharge device connected to the bottom end of the discharge valve, a stirring device inside the mixing tank, a feed inlet at the top of the mixing tank, and a salt-adding device at the top of the mixing tank. The salt-adding device includes a first storage tank connected to the top of the mixing tank via a support frame. A first solenoid valve is connected to the bottom of the first storage tank, a first metering device is connected to the lower end of the first solenoid valve, and a horizontally arranged constant-dry conveying pipe is connected to the lower end of the first metering device. The first metering device is connected to the middle of the constant-dry conveying pipe, and an air supply device for introducing dry air into the constant-dry conveying pipe is connected to the first end of the constant-dry conveying pipe. The end of the constant-dry conveying pipe is connected to the inner cavity of the mixing tank via a second solenoid valve, and an overflow pipe is connected to the constant-dry conveying pipe between the first metering device and the second solenoid valve via a solenoid three-way valve.

[0006] In some embodiments, the stirring device includes a stirring shaft vertically disposed in the mixing tank and a stirring motor drivenly connected to the stirring shaft, wherein a plurality of stirring blades are connected to the stirring shaft.

[0007] In some embodiments, the first measuring device includes a measuring box, an annular cavity is provided in the inner cavity of the measuring box, an annular turntable is provided in the cavity, at least one storage slot is provided on the outer periphery of the turntable, a drive shaft is coaxially connected to the turntable, and one end of the drive shaft extends to the outside of the measuring box and is connected to a drive device.

[0008] In some embodiments, the driving device includes a servo motor, the output end of which is coaxially connected to a first driving sprocket. The first driving sprocket is connected to a first driven sprocket via a ring chain drive, and the first driven sprocket is coaxially connected to the outer end of the drive shaft.

[0009] In some embodiments, a second storage tank is included, the bottom of which is connected to a third solenoid valve, the lower end of which is connected to a second metering device, and the lower end of which is connected to a horizontally arranged constant-pressure conveying pipe.

[0010] In some embodiments, one end of the first drive sprocket is coaxially connected to a second drive sprocket, the second drive sprocket is connected to a second driven sprocket via a ring chain drive, and the second driven sprocket is driven to the second metering device.

[0011] In some embodiments, the transmission ratio between the first driving sprocket and the first driven sprocket is greater than the transmission ratio between the second driving sprocket and the second driven sprocket.

[0012] The beneficial effects of this application are as follows: By incorporating a salt-adding device, including a first storage tank, a constant-pressure conveying pipe, and an overflow pipe, these components work together to precisely control the amount of salt added, avoiding measurement errors caused by manual mixing and reducing labor costs, thus improving the automation level of the equipment. Furthermore, this application allows for the periodic addition of salt. Compared to a single-time addition, the salt is added in batches, preventing localized areas of high salt concentration and reduced subsequent stirring pressure. In this application, the constant-pressure conveying pipe, in conjunction with an air supply device, keeps the pipe dry, preventing salt particles from adhering to the pipe wall and causing feeding errors. It also utilizes airflow to blow the salt into the mixing tank.

[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall half-section structure of the device provided in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram of a partial structure of the top of the mixing tank provided in an embodiment of this application;

[0017] Figure 3 This is a partial structural schematic diagram of the salting device provided in the embodiments of this application;

[0018] Figure 4 A partial structural schematic diagram of the salting device provided in an embodiment of this application from another perspective;

[0019] Figure 5 A partial cross-sectional structural diagram of the first measuring device and its connection provided in the embodiments of this application.

[0020] The reference numerals in the detailed embodiments are as follows:

[0021] The salt-reducing feeding structure 100, applied to low-salt vermicelli, includes a mixing tank 110, a discharge valve 111, a feed inlet 112, a discharge device 120, a stirring device 130, a stirring motor 131, a stirring shaft 132, stirring blades 133, a salting device 140, a first storage tank 141, a first solenoid valve 141a, a first metering device 142, a metering box 142a, a turntable 142b, a storage tank 142c, a drive shaft 142d, a constant-pressure conveying pipe 143, an air supply device 144, a second solenoid valve 145, a solenoid three-way valve 146, an overflow pipe 146a, a drive device 147, a servo motor 147a, a first driving sprocket 147b, a first driven sprocket 147c, a second driving sprocket 147d, a second driven sprocket 147e, a second storage tank 148, a second solenoid valve 148a, and a second metering device 148b. Detailed Implementation

[0022] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0023] For details, please refer to Figures 1 to 5 , Figure 1 This is a schematic diagram of the overall half-section structure of the device provided in an embodiment of this application. Figure 2 This is a partial structural diagram of the top of the mixing tank provided in an embodiment of this application. Figure 3 This is a partial structural diagram of the salting device provided in an embodiment of this application. Figure 4 This is a partial structural schematic diagram of the salting device provided in an embodiment of this application from another perspective. Figure 5This is a partial cross-sectional structural diagram of the first metering device and its connection provided in an embodiment of this application. The salt-reducing feeding structure 100 applied to low-salt vermicelli includes a mixing tank 110, which is used to stir and mix the materials inside and can be commercially available. A discharge valve 111 is provided at the bottom of the mixing tank 110, and the bottom end of the discharge valve 111 is connected to a discharge device 120. After mixing is completed, the slurry is discharged through the discharge valve 111 to the discharge device 120 and then sent to the next process. A stirring device 130 is provided inside the mixing tank 110 for stirring. A feed inlet 112 is connected to the top of the mixing tank 110 for adding raw materials, mainly starch and water, into the mixing tank 110. A salting device 140 is provided at the top of the mixing tank 110 for precisely controlling the amount of salt and salt substitutes added. The salting device 140 includes a first storage tank 141 connected to the top of the mixing tank 110 via a support frame. The first storage tank 141 is used to store salt. A first solenoid valve 141a is connected to the bottom of the first storage tank 141. A first metering device 142 is connected to the lower end of the first solenoid valve 141a. When the first solenoid valve 141a is opened, the salt in the first storage tank 141 will fall into the first metering device 142. After being weighed by the first metering device 142, it will fall into the constant-pressure conveying pipe 143 below. The lower end of the first metering device 142 is connected to a horizontally arranged constant dry conveying pipe 143. The first metering device 142 is connected to the middle of the constant dry conveying pipe 143. The first end of the constant dry conveying pipe 143 is connected to an air supply device 144 for introducing dry air into it. The air supply device 144 ensures that the inside of the constant dry conveying pipe 143 is in a dry state by introducing dry air into it, avoiding the problem of unstable addition caused by salt sticking to the pipe. In addition, the dry air can also blow the salt in the constant dry conveying pipe 143 into the mixing tank 110 during the circulation process. The air supply device 144 here can take various forms, such as a refrigerated dryer, an adsorption dryer, or a dehumidifier + air circulation system. The end of the constant dry conveying pipe 143 is connected to the inner cavity of the mixing tank 110 via a second solenoid valve 145. When the second solenoid valve 145 is opened, the drying airflow introduced into the constant dry conveying pipe 143 by the air supply device 144 can blow the salt in the constant dry conveying pipe 143 into the inner cavity of the mixing tank 110. The constant dry conveying pipe 143 is located between the first metering device 142 and the second solenoid valve 145 and is connected to an overflow pipe 146a via a solenoid three-way valve 146. When the solenoid three-way valve 146 is opened, the overflow pipe 146a can be connected to the constant dry conveying pipe 143.

[0024] As can be seen from the above, in this embodiment of the application, the working process is as follows: starch and water are put into the mixing tank 110 through the feed inlet 112, and then the stirring device 130 is turned on for stirring. During the stirring process, salt is added to the mixing tank 110 periodically multiple times, thereby avoiding problems such as uneven stirring caused by adding salt all at once. The salt feeding process is as follows: After closing the first solenoid valve 141a and the second solenoid valve 145, the solenoid three-way valve 146 is opened to connect the overflow pipe 146a with the crossbar conveying pipe. Then the air supply device 144 is turned on. The drying airflow enters the crossbar conveying pipe and is blown out by the overflow pipe 146a to dry the inside of the crossbar conveying pipe. Then the overflow pipe 146a is closed and the first solenoid valve 141a is turned on. The salt in the first storage tank 141 falls into the first metering device 142 for weighing and then falls into the constant dry conveying pipe 143. The second solenoid valve 145 is turned on and the airflow at the air supply device 144 can blow the salt in the constant dry conveying pipe 143 into the mixing tank 110.

[0025] As can be seen from the above, in this embodiment, by setting up a salt adding device 140, which includes components such as a first storage tank 141, a constant-dry conveying pipe 143, and an overflow pipe 146a, the multiple components work together to accurately control the amount of salt added, avoid measurement errors caused by manual mixing, reduce labor costs, and improve the automation level of the equipment. On the other hand, this application can realize the operation of periodically adding salt multiple times. Compared with the form of adding salt all at once, since the salt is added in batches in this application, the salt will not accumulate together to form a situation where there is a lot of salt in some areas and no salt around the edges, reducing the subsequent stirring pressure. In this application, the constant-dry conveying pipe 143, in conjunction with the air supply device 144, can keep the constant-dry conveying pipe 143 in a dry state to avoid the feeding error caused by salt particles sticking to the pipe wall, and can also use airflow to blow the salt into the mixing tank 110.

[0026] In some embodiments, the stirring device 130 includes a stirring shaft 132 vertically disposed within the mixing tank 110, and a stirring motor 131 drivenly connected to the stirring shaft 132. A plurality of stirring blades 133 are connected to the stirring shaft 132. For ease of explanation, this application embodiment provides a specific method for setting up the stirring device 130, wherein after the stirring motor 131 is turned on, it can drive the stirring shaft 132, stirring blades 133, etc., to rotate synchronously to complete the mixing of materials within the mixing tank 110.

[0027] In some embodiments, the first metering device 142 includes a metering box 142a, an annular cavity is provided in the inner cavity of the metering box 142a, an annular turntable 142b is provided in the cavity, a small gap is provided between the turntable 142b and the cavity, the width of the gap is smaller than the average particle size of the salt particles, at least one storage groove 142c is provided on the outer periphery of the turntable 142b, and a drive shaft 142d is coaxially connected to the turntable 142b, one end of the drive shaft 142d extends to the outside of the metering box 142a and is connected to a drive device 147. In this embodiment of the application, during operation, the drive device 147 drives the turntable 142b to rotate via the drive shaft 142d. As the turntable 142b rotates, when its storage tank 142c moves upward, salt enters the storage tank 142c. Subsequently, as the storage tank 142c rotates, the salt at the top is scraped flat by the side wall of the cavity. Furthermore, when the storage tank 142c rotates downward, the salt particles inside fall into the constant dry conveying pipe 143. Thus, the amount of salt added can be controlled simply by controlling the number of rotations of the turntable 142b via the drive device 147.

[0028] In some embodiments, the drive device 147 includes a servo motor 147a, the output end of which is coaxially connected to a first drive sprocket 147b. The first drive sprocket 147b is connected to a first driven sprocket 147c via a ring chain. The first driven sprocket 147c is coaxially connected to the outer end of the drive shaft 142d. In this application, when the servo motor 147a is turned on, it drives the first drive sprocket 147b to rotate, which in turn drives the first driven sprocket 147c to rotate via the ring chain. The first driven sprocket 147c then drives the drive shaft 142d to rotate.

[0029] In some embodiments, a second storage tank 148 is included. The bottom of the second storage tank 148 is connected to a third solenoid valve 148a. The lower end of the third solenoid valve 148a is connected to a second metering device 148b. The lower end of the second metering device 148b is connected to a horizontally arranged constant-pressure conveying pipe 143. In this embodiment, the second storage tank 148 is used to store a salt substitute, which can be a pre-mixed mixture of potassium chloride and a natural flavor enhancer. The second metering device 148b can be configured with reference to the first metering device 142 described above. Therefore, during the operation of this application, the salt substitute can also be fed simultaneously.

[0030] In some embodiments, one end of the first driving sprocket 147b is coaxially connected to a second driving sprocket 147d, and the second driving sprocket 147d is connected to a second driven sprocket 147e via a ring chain drive. The second driven sprocket 147e is drive-connected to the second metering device 148b. In this embodiment, with the above configuration, during operation, when the servo motor 147a is turned on, the second driving sprocket 147d can sequentially drive the drive shaft 142d on the second metering device 148b to rotate, thereby completing the feeding of the salt substitute, which will then be blown into the mixing tank 110 along with the salt. In this embodiment, both the second metering device 148b and the first metering device 142 are controlled by the servo motor 147a to achieve multi-purpose operation, saving equipment production costs. Furthermore, the second metering device 148b and the first metering device 142 are in a forced mutual start-up state, meaning that once one is turned on, the other will be forced to start, thus avoiding the problem of operators forgetting to add one of the raw materials.

[0031] In some embodiments, the transmission ratio between the first driving sprocket 147b and the first driven sprocket 147c is greater than the transmission ratio between the second driving sprocket 147d and the second driven sprocket 147e. In this embodiment, the ratio of the amount of salt dispensed between the first metering device 142 and the second metering device 148b is controlled by controlling the transmission ratio. In this embodiment, since the transmission ratio between the first driving sprocket 147b and the first driven sprocket 147c is greater than the transmission ratio between the second driving sprocket 147d and the second driven sprocket 147e, when the dimensions of the first metering device 142 and the second metering device 148b are completely identical, the amount of salt dispensed at the first metering device 142 will be greater than the amount of salt substitute dispensed at the second metering device 148b.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A salt-reducing feeding structure for low-salt vermicelli, characterized in that, The system includes a mixing tank, a discharge valve at the bottom of the mixing tank, a discharge device connected to the bottom of the discharge valve, a stirring device inside the mixing tank, a feed inlet connected to the top of the mixing tank, and a salting device at the top of the mixing tank. The salting device includes a first storage tank connected to the top of the mixing tank via a support frame. The bottom of the first storage tank is connected to a first solenoid valve. The lower end of the first solenoid valve is connected to a first metering device. The lower end of the first metering device is connected to a horizontally arranged constant-dry conveying pipe. The first metering device is connected to the middle of the constant-dry conveying pipe. The first end of the constant-dry conveying pipe is connected to an air supply device for inputting dry air into it. The end of the constant-dry conveying pipe is connected to the inner cavity of the mixing tank via a second solenoid valve. An overflow pipe is connected to the constant-dry conveying pipe located between the first metering device and the second solenoid valve via a solenoid three-way valve.

2. The salt-reduced noodle according to claim 1, wherein, The stirring device includes a stirring shaft vertically arranged inside the mixing tank, and a stirring motor drivenly connected to the stirring shaft. Multiple stirring blades are connected to the stirring shaft.

3. The salt-reduced noodle according to claim 1, wherein, The first measuring device includes a measuring box, an annular cavity is provided in the inner cavity of the measuring box, an annular turntable is provided in the cavity, at least one storage slot is provided on the outer periphery of the turntable, a drive shaft is coaxially connected to the turntable, and one end of the drive shaft extends to the outside of the measuring box and is connected to a drive device.

4. The salt-reduced feed structure for low-salt vermicelli according to claim 3, characterized in that, The driving device includes a servo motor, the output end of which is coaxially connected to a first driving sprocket. The first driving sprocket is connected to a first driven sprocket via a ring chain drive. The first driven sprocket is coaxially connected to the outer end of the drive shaft.

5. The salt-reduced noodle according to claim 4, wherein, It includes a second storage tank, the bottom of which is connected to a third solenoid valve, the lower end of which is connected to a second metering device, and the lower end of which is connected to a horizontally arranged constant-pressure conveying pipe.

6. The salt-reduced noodle according to claim 5, wherein, One end of the first driving sprocket is coaxially connected to a second driving sprocket, and the second driving sprocket is connected to a second driven sprocket via a ring chain drive. The second driven sprocket is driven to the second metering device.

7. The salt-reduced feed structure for low-salt vermicelli according to claim 6, characterized in that, The transmission ratio between the first driving sprocket and the first driven sprocket is greater than the transmission ratio between the second driving sprocket and the second driven sprocket.