Peanut decoloring equipment

Abstract

The utility model provides equipment for decoloring peanuts, which comprises a cylindrical reaction container and a filtering device, the reaction container and the filtering device are connected through a decoloring solution pipeline, and a pump is arranged on the decoloring solution pipeline; an included angle of 8-15 degrees is formed between the axis of the cylindrical reaction container and the horizontal plane; a feed port is formed in the high-position end of the reaction container, and a discharge port is formed in the low-position end of the reaction container; an ultraviolet lamp is mounted on the inner wall of the reaction container. According to the device for decoloring the peanuts, the soaking decoloring of the solvent and the ultraviolet irradiation are fused, and the decoloring efficiency is remarkably improved. Compared with a traditional process, the equipment provides an efficient and rapid decolorization process, is simple and convenient to operate and efficient, also gives consideration to environmental friendliness, and ensures that the whole process is non-toxic and residue-free due to the fact that the solution is recycled after being filtered.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing, and in particular relates to a device for decolorizing peanuts. Background Art

[0002] In the field of food processing, the decolorization of peanuts has always been a technical problem. The traditional method is to peel the peanuts, such as soaking or freezing them, which is not only cumbersome and costly, but also easily affects the taste and nutritional value of peanuts. In recent years, with the advancement of food technology, the use of chemical or physical methods to achieve rapid decolorization has become a research hotspot. However, these methods often have problems such as complex operation, high cost, and great impact on food quality.

[0003] Peanut skins are rich in polyphenol pigments and other beneficial ingredients. Studies have shown that the red pigment in peanut skins is relatively stable to heat and light, and remains stable within a pH range of 4 to 7. When peanut skin pigments are exposed to UV-B radiation, their stability may be significantly affected. Bleaching affects the pigment of peanut skins, but does not significantly reduce the nutritional value of the peanut kernels themselves. The rich protein, fat, vitamins and minerals contained in them can still meet the nutritional needs of the human body. In addition, bleaching can effectively extend the shelf life of peanuts and reduce the quality loss that may occur during storage. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to propose an intermittent device for decolorizing peanuts, which can realize soaking in different solutions and ultraviolet irradiation treatment in the same device to achieve rapid decolorization of peanuts.

[0005] The technical solution to achieve the above-mentioned purpose of the utility model is:

[0006] A device for decolorizing peanuts, comprising a cylindrical reaction container and a filtering device, wherein the reaction container and the filtering device are connected via a decolorizing liquid pipeline, and a pump is arranged on the decolorizing liquid pipeline;

[0007] The axis of the cylindrical reaction container has an angle of 8 to 15 degrees with the horizontal plane; a feed port is provided at the upper end of the reaction container, and a discharge port is provided at the lower end;

[0008] An ultraviolet lamp is installed on the inner wall of the reaction container.

[0009] Wherein, the decolorizing liquid pipeline is connected to the lower end of the reaction container, and the decolorizing liquid pipeline is connected to the bottom of the filtering device.

[0010] Wherein, a filter layer is installed at 50-80% of the height of the filter device, and the filter layer is composed of two layers of filter screens and resin filled between the two layers of filter screens.

[0011] The filter can filter out impurities such as peanut red skin. The resin is used to decolorize the solution soaked in peanuts, and macroporous adsorption resin can be used.

[0012] Wherein, the top of the filtering device is connected to the reaction container through a circulation pipeline.

[0013] The solution soaked with peanuts enters from the bottom of the filter device, and the liquid level gradually rises and passes through the filter layer to achieve filtration and decolorization, and can be recycled.

[0014] Further preferably, an agitator is provided in the reaction container, and a stirring shaft of the agitator is coaxial with a central axis of the reaction container; and a plurality of groups of parallel blades are provided on the agitator.

[0015] More preferably, the blade is an arc-shaped blade made of polyethylene material. Polyethylene is resistant to acid and alkali corrosion and does not contain chlorine, so it is suitable for food processing; the arc-shaped blade can prevent the peanuts from being damaged.

[0016] The stirrer is connected to a motor for driving the stirrer to rotate around a stirring shaft, and the motor is arranged outside the reaction container.

[0017] The device proposed by the utility model can realize the combined treatment of organic acid solution immersion and ultraviolet light irradiation, and its operation process is as follows:

[0018] 1. Solution preparation: Add an appropriate amount of acetic acid to water, stir until completely dissolved, and use pH test paper or pH meter to adjust the pH of the solution to less than 3.

[0019] 2. Soaking: Put the cleaned peanuts into a reaction container, add the prepared acetic acid solution into the reaction container, and soak for 2 hours. After soaking, drain the solution into a filter device.

[0020] 3. Ultraviolet light irradiation: Irradiate the soaked peanuts with ultraviolet light, use a 300nm ultraviolet lamp, and turn on the agitator at the same time to ensure that the peanuts are evenly exposed to light.

[0021] 4. Cleaning and storage: Rinse the irradiated peanuts with clean water, discharge them from the bottom of the reactor, dry them, and store them in a sealed container.

[0022] The beneficial effects of the utility model are:

[0023] The device for decolorizing peanuts proposed in the utility model combines solvent immersion decolorization with ultraviolet light irradiation, significantly improving the decolorization efficiency. Compared with the traditional process, this device provides an efficient and fast decolorization process, which is easy and efficient to operate, while taking into account environmental friendliness. The solution is filtered and recycled to ensure that the entire process is non-toxic and residue-free.

[0024] The color of the bleached peanuts is more uniform, avoiding the overall appearance of the cold dish affected by the different shades of the peanut skin. This helps to enhance the appeal of the dish and make it more competitive in the market. Some consumers may have concerns about the color of the peanut skin, worrying whether it has been processed or contains unsafe factors. The bleaching process can eliminate such concerns and increase consumers' trust and acceptance of the dish. In addition, the peanut decolorization process can effectively extend the shelf life of peanuts, providing a better choice of raw materials for cold dish making. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a simplified structural diagram of the device for decolorizing peanuts.

[0026] Figure 2 A front view of a set of agitator blades.

[0027] In the figure, the corresponding relationship between parts and numbers is as follows:

[0028] Reaction container 1, stirrer 2, blade 201, stirring shaft 202, filtering device 3, feed inlet 4, circulation pipeline 5, ultraviolet lamp 6, filtering layer 7, pump 8, discharge port 9. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0030] To make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the embodiment of the utility model will be described in more detail below in conjunction with the drawings in the embodiment of the utility model. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the utility model, not all of them.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as limiting the scope of protection of the present invention.

[0032] Unless otherwise specified, the methods used in the embodiments are all existing technical methods in the art.

[0033] Example 1

[0034] See also Figure 1 , this embodiment provides a device for decolorizing peanuts, comprising a cylindrical reaction container 1 and a filtering device 3, wherein the reaction container and the filtering device are connected via a decolorizing liquid pipeline, and a pump 8 is provided on the decolorizing liquid pipeline;

[0035] The central axis of the cylindrical reaction container has an angle of 8 to 15 degrees with the horizontal plane; a feed port 4 is provided at the upper end of the reaction container, and a discharge port 9 is provided at the lower end;

[0036] An ultraviolet lamp 6 is installed on the inner wall of the reaction container.

[0037] The reactor is tilted to facilitate the discharge of solutions and materials from the lower end.

[0038] The decolorizing liquid pipeline is connected to the lower end of the reaction container 1 , and the decolorizing liquid pipeline is connected to the bottom of the filtering device 3 .

[0039] A filter layer 7 is installed at 50-80% of the height of the filter device. The filter layer is composed of two layers of filter screens and resin filled between the two layers of filter screens.

[0040] The top of the filtering device 3 is connected to the reaction container 1 through a circulation pipe 5 .

[0041] The reaction vessel is provided with a stirrer 2, and a stirring shaft 202 of the stirrer 2 is coaxial with the central axis of the reaction vessel; the stirrer is provided with a plurality of parallel blades 201. The stirrer 2 is connected with a motor for driving the stirrer to rotate around the stirring shaft 202. The motor is provided outside the reaction vessel.

[0042] See also Figure 2 The blade 201 is an arc-shaped blade made of polyethylene material.

[0043] Using the equipment proposed by the utility model, organic acid solution immersion and ultraviolet light irradiation can be combined for treatment. This embodiment provides a set of equipment and process parameters as follows: the central axis of the cylindrical reaction container 1 has an angle of 10 degrees with the horizontal plane; a batch of the container can process 100 to 200 kilograms of peanuts, 9 groups of three-blade paddles are installed on the agitator, and the stirring speed is 60 to 100 rpm; a filter layer 7 is installed at 70% of the height of the filter device 3 (measured by the center of the filter layer).

[0044] The process of using this equipment to decolorize peanuts is:

[0045] 1. Solution preparation: Add an appropriate amount of acetic acid to water, stir until completely dissolved, and use pH test paper or pH meter to adjust the pH of the solution to less than 3.

[0046] 2. Soaking treatment: Put the cleaned peanuts into a reaction container, and pour the prepared acetic acid solution into the reaction container, the volume of the solution is about 25% of the volume of the reaction container, and soak for 2 hours. After the soaking is completed, drain the solution into the filtering device.

[0047] 3. Ultraviolet light irradiation: irradiate the peanuts with ultraviolet light while soaking. Use a 300nm ultraviolet lamp and turn on the agitator at the same time to ensure that the peanuts are evenly exposed to light.

[0048] 4. Cleaning and storage: Rinse the irradiated peanuts with clean water, discharge them from the bottom of the reactor, dry them, and store them in a sealed container.

[0049] Example 2

[0050] This embodiment provides a device for decolorizing peanuts, comprising a cylindrical reaction container 1 and a filtering device 3, wherein the reaction container and the filtering device are connected via a decolorizing liquid pipeline, and a pump 8 is provided on the decolorizing liquid pipeline;

[0051] The central axis of the cylindrical reaction container has an angle of 8 to 15 degrees with the horizontal plane; a feed port 4 is provided at the upper end of the reaction container, and a discharge port 9 is provided at the lower end;

[0052] An ultraviolet lamp 6 is installed on the inner wall of the reaction container.

[0053] The decolorizing liquid pipeline is connected to the lower end of the reaction container 1 , and the decolorizing liquid pipeline is connected to the bottom of the filtering device 3 .

[0054] A filter layer 7 is installed at 50-80% of the height of the filter device. The filter layer is composed of two layers of filter screens and resin filled between the two layers of filter screens.

[0055] The top of the filtering device 3 is connected to the reaction container 1 through a circulation pipe 5 .

[0056] The reaction vessel is provided with a stirrer 2, and a stirring shaft 202 of the stirrer 2 is coaxial with the central axis of the reaction vessel; the stirrer is provided with a plurality of parallel blades 201. The blades 201 are arc-shaped blades made of polyethylene material. The stirrer 2 is connected to a motor for driving the stirrer to rotate around the stirring shaft 202. The motor is arranged outside the reaction vessel.

[0057] The device proposed by the utility model can realize the combined treatment of organic acid solution immersion and ultraviolet light irradiation. This embodiment provides a set of equipment and process parameters as follows: the central axis of the cylindrical reaction container 1 has an angle of 12 degrees with the horizontal plane; the container can process 100 kg of peanuts in one batch, 8 groups of two-blade paddles are installed on the stirrer, and the stirring speed is 60 revolutions / min; a filter layer 7 is installed at 60% of the height of the filter device 3 (measured by the center of the filter layer).

[0058] Although the present invention has been described above through embodiments, those skilled in the art should understand that, without departing from the spirit and substance of the present invention, all improvements and modifications made to the present invention should fall within the scope of protection of the present invention.

Claims

1. A device for decolorizing peanuts, characterized in that: It comprises a cylindrical reaction container and a filtering device, wherein the reaction container and the filtering device are connected via a decolorizing liquid pipeline, and a pump is arranged on the decolorizing liquid pipeline; The axis of the cylindrical reaction container has an angle of 8 to 15 degrees with the horizontal plane; a feed port is provided at the upper end of the reaction container, and a discharge port is provided at the lower end; An ultraviolet lamp is installed on the inner wall of the reaction container.

2. The device for decolorizing peanuts according to claim 1, characterized in that: The decolorizing liquid pipeline is connected to the lower end of the reaction container, and the decolorizing liquid pipeline is connected to the bottom of the filtering device.

3. The device for decolorizing peanuts according to claim 1, characterized in that: A filter layer is installed at 50-80% of the height of the filter device, and the filter layer consists of two layers of filter screens and resin filled between the two layers of filter screens.

4. The device for decolorizing peanuts according to claim 1, characterized in that: The top of the filtering device is connected to the reaction container through a circulation pipeline.

5. The device for decolorizing peanuts according to any one of claims 1 to 4, characterized in that: The reaction container is provided with a stirrer, the stirring shaft of the stirrer is coaxial with the central axis of the reaction container; the stirrer is provided with multiple groups of parallel blades.

6. The device for decolorizing peanuts according to claim 5, characterized in that: The paddle blades are arc-shaped paddle blades made of polyethylene material.

Images