Energy-saving and noise-reducing wet bean peeling device and peeling process

Abstract

The present invention discloses an energy-saving and noise-reducing wet-process bean peeling device and peeling process, comprising a bean soaking barrel, a conveying pump, a feed pipe, a discharge pipe, and a hull-kernel separation mechanism. One end of the conveying pump is connected to the bean soaking barrel through the feed pipe, and the other end is connected to the hull-kernel separation mechanism through the discharge pipe. The bean soaking barrel is used to accommodate and soak beans. The hull-kernel separation mechanism is provided with a kernel outlet and a hull outlet. The hull-kernel separation mechanism is used to separate the hulls and kernels of the peeled beans. The discharge pipe is curved and is used for peeling bean products. The present invention can separate the hulls from the kernels (cotyledons), germs, etc. by the centrifugal motion of the hull separation mechanism during the process of conveying beans that have been soaked and swollen in water, through the impact and friction between the beans and the pipe wall. The hulls, which are lighter than water, float up and rotate along the pipe wall and are discharged out of the separation barrel. This makes the wet-process bean peeling energy-saving and noise-reducing, and can improve work efficiency. Cleaning work only requires rinsing with water, which is easier and more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of peeling machines, and in particular to an energy-saving and noise-reducing wet-process bean peeling device and a peeling process. Background Art

[0002] Almost all wet-process bean peeling machines currently on the market use a vibrating mechanism to disperse the swelled beans and water into a row of circular discs with gaps between them. This ensures that the beans sequentially enter two rotating rollers at different speeds for peeling. The beans then pass through another row of gaps, where rotating, angled plastic discs scrape the beans and husks off. Taking advantage of the different specific gravities of the husks and kernels, the husks are discharged separately through two channels, achieving the desired peeling effect.

[0003] This type of wet bean peeling machine has a complex structure, high noise and vibration. The beans must be screened beforehand to separate them into small sizes that fit between the two rollers. Beans that are too small pass through directly and are unable to be peeled by friction, while beans that are too large cannot fit between the rollers and are also unable to be peeled. Furthermore, the separation rate between the skin and the bean does not exceed 70%, resulting in low production capacity. To achieve a peeling rate of over 85%, the feed rate must not exceed 30 kg of dry beans per hour. Furthermore, after the machine is finished, residual skins, kernels, and beans are left everywhere, making them difficult to clean. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy-saving and noise-reducing wet bean peeling device and peeling process to solve the problems existing in the above-mentioned prior art, so that the wet bean peeling is energy-saving and noise-reducing, and the work efficiency can be improved.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides an energy-saving and noise-reducing wet-process bean peeling device, which includes a bean soaking barrel, a conveying pump, a feed pipe, a discharge pipe and a hull-kernel separation mechanism. One end of the conveying pump is connected to the bean soaking barrel through the feed pipe, and the other end is connected to the hull-kernel separation mechanism through the discharge pipe. The bean soaking barrel is used to accommodate and soak beans. The hull-kernel separation mechanism is provided with a kernel outlet and a hull outlet. The hull-kernel separation mechanism is used to separate the hulls and kernels of the peeled beans. The discharge pipe is bent and is used for peeling bean products.

[0007] Preferably, the discharge pipe includes at least one section of thin or thick tubes with different diameters.

[0008] Preferably, the discharge pipe is provided with at least one bend.

[0009] Preferably, the discharge pipe is provided with at least one section of spring tube and / or static mixing tube.

[0010] Preferably, the spring tube is a pipeline with a section of spiral steel ring exposed inside.

[0011] Preferably, the static mixing tube is a pipeline with a section of spiral blades provided therein.

[0012] Preferably, a plurality of stainless steel bars are welded on the spiral blade.

[0013] Preferably, the discharge pipe is a plastic hose, and a pressure sensor is provided on the discharge pipe.

[0014] Preferably, the delivery pump is a peristaltic pump or a flexible pump; the hull-kernel separation mechanism is a cyclone separator, and a water filtering screen frame or mesh bag is respectively provided below the kernel outlet and the hull outlet.

[0015] The present invention also relates to an energy-saving and noise-reducing wet bean peeling process, based on the above-mentioned energy-saving and noise-reducing wet bean peeling device, which specifically includes the following steps:

[0016] Step 1: Lightly roast the beans or directly soak them in water with an amount of water at least three times the weight of the beans, until the beans are soaked to more than ten times the weight of the original beans.

[0017] Step 2: Turn on the delivery pump to suck the soaked bean product and water into the feed pipe and transport it to the discharge pipe, so that the soaked bean product is impacted, rubbed and peeled in the discharge pipe;

[0018] In step 3, the peeled bean kernels, bean skins, germs, and water mixture is transported to a cyclone separator through the discharge pipe. The skins flow out from the skin outlet at the top of the cyclone separator and are collected by a sieve frame or a mesh bag. The mixed fluid of the bean kernels and germs flows out from the kernel outlet at the bottom of the cyclone separator and is collected by a sieve frame or a mesh bag. The falling liquid is recycled after passing through a filtering device.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention can, during the process of conveying beans that have been soaked and swollen, separate the bean skins due to the impact and friction between the beans and the pipe wall through water conveying, and then separate the bean skins from the bean kernels (cotyledons), germs, etc. through the centrifugal motion of the hull-kernel separation mechanism, so that the wet-process bean peeling is energy-saving and noise-reducing, and work efficiency is improved; since there are no dead corners inside the barrel, pipeline, conveying pump, cyclone separator, etc., cleaning work only needs to inhale clean water from the feed port of the conveying pump, and the whole process can be run once, which is easier and more convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of an energy-saving and noise-reducing wet-process bean peeling device according to an embodiment of the present invention;

[0023] Figure 2 This is another structural schematic diagram of the energy-saving and noise-reducing wet-process bean peeling device according to an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the spring tube in an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the structure of a static mixer in an embodiment of the present invention;

[0026] Among them: 1-bean soaking barrel, 2-feed pipe, 3-conveying pump, 4-discharge pipe, 5-cyclone separator, 6-screen frame, 7-spring tube, 8-spiral steel ring, 9-static mixing tube, 10-spiral blade, 11-steel bar. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide an energy-saving and noise-reducing wet bean peeling device and peeling process to solve the problems existing in the prior art, so that the wet bean peeling is energy-saving and noise-reducing, and the work efficiency can be improved.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1 to 4As shown: This embodiment provides an energy-saving and noise-reducing wet-process bean peeling device, comprising a bean soaking barrel 1, a delivery pump 3, a feed pipe 2, a discharge pipe 4, and a hull-kernel separation mechanism. One end of the delivery pump 3 is connected to the bean soaking barrel 1 via the feed pipe 2, and the other end is connected to the hull-kernel separation mechanism via the discharge pipe 4. The bean soaking barrel 1 is used to accommodate and soak beans. The hull-kernel separation mechanism is provided with a kernel outlet and a hull outlet. The hull-kernel separation mechanism is used to separate the hulls and kernels of the peeled beans. The discharge pipe 4 is curved and is used to peel the bean products. The number of bends in the discharge pipe 4 can be adjusted according to the peeling effect.

[0032] Specifically, in this embodiment, the discharge pipe 4 includes at least one section of thin or thick pipes with different diameters, and the water flow speed can be adjusted by changing the pipe diameter to increase the water flow impact and friction.

[0033] Specifically, in this embodiment, the discharge pipe 4 is provided with at least one bend, such as Figure 1 As shown, this embodiment utilizes a plastic hose with multiple bends to increase the chances of beans colliding with the pipe. The discharge pipe 4 is a plastic hose, making it easy to create bends. A pressure sensor is also installed on the discharge pipe 4. The delivery pump 3, pipe, and accessories in this embodiment are all connected with stainless steel quick connectors for easy assembly and disassembly.

[0034] Specifically, in this embodiment, the discharge pipe 4 is provided with at least a section of spring tube 7 and / or a static mixing tube 9. One or both of them can be selected according to the use effect. The spring tube 7 is a pipe with a section of spiral steel ring 8 exposed inside to increase the peeling friction. The static mixing tube 9 is a pipe with a section of spiral blade 10 inside. The spiral blade 10 is a discontinuous spiral blade used to increase the probability of collision between the beans in the pipe and the pipe wall, accelerating peeling. If necessary, a static mixing tube 9 can be installed between the pipes to increase the peeling efficiency. Among them, a number of stainless steel bars 11 are welded on the spiral blade 10 to increase the peeling friction.

[0035] Specifically, in this embodiment, the delivery pump 3 is a peristaltic pump or a flexible pump, which can deliver bean products soaked in water without damaging them. The water pressure in the discharge pipe 4 will affect the flow rate. The higher the water pressure, the faster the flow rate, the greater the impact force and friction force. The magnitude of the friction and impact force will affect the peeling rate and the crushing rate. If the impact force and friction force are too small, the peeling effect will not be achieved. If they are too large, the bean kernels (cotyledons) will be crushed. Therefore, it is necessary to control the motor speed of the delivery pump 3 with a variable frequency to regulate the water output and flow rate. The kernel and skin separation mechanism is a cyclone separator 5. A water filter frame 6 or a mesh bag is provided below the kernel outlet and the shell outlet to filter out the water.

[0036] Example 2

[0037] This embodiment also relates to an energy-saving and noise-reducing wet bean peeling process, which is based on the energy-saving and noise-reducing wet bean peeling device in Example 1 and specifically includes the following steps:

[0038] Step 1: Lightly roast the beans or directly put them into water for soaking. The amount of water should be at least 3 times the weight of the beans. The soaking is completed when the beans are soaked to more than 10 times the weight of the original beans.

[0039] In step two, the delivery pump 3 is activated, drawing the soaked bean product along with water into the feed pipe 2 and transporting it to the discharge pipe 4, where the soaked bean product is subjected to collision and friction, causing the skins to peel. The power of the delivery pump 3 can be selected based on power requirements. Alternatively, a variable frequency delivery pump can be used to adjust the power of the delivery pump 3, thereby adjusting the fluid velocity and water pressure. The spring tube 7 and static mixing tube 9 are separate components and can be added based on the difficulty of bean peeling and user experience. They can be connected using quick-connect fittings for quick connection and removal.

[0040] In step three, the peeled bean kernels, hulls, germ, and water mixture is transported via discharge pipe 4 to cyclone separator 5. The hulls flow out of the hull outlet at the top of cyclone separator 5 and are collected by screen frame 6 or a mesh bag. The mixed fluid of the bean kernels and germs flows out of the kernel outlet at the bottom of cyclone separator 5 and is collected by screen frame 6 or a mesh bag. The falling liquid is filtered and recycled for reuse, and can be used to soak the beans or clean the bean kernels, thus saving energy and reducing emissions. The flow rate of the kernel outlet at the bottom of cyclone separator 5 can be adjusted to control the flow balance of the inflow and outflow fluids. The water flowing out of the two screen baskets can also be merged, filtered, and recycled into the bean soaking water for recycling.

[0041] In this embodiment, a 1.5 kW flexible pump is used as an example. Its water output is 200 liters per minute, or approximately 12,000 kg / hour. Based on the most relaxed dry bean:water ratio of 5:95, this pump can process 600 kg of dry beans per hour, with a peeling rate exceeding 85%. A conventional 0.375 kW wet bean peeling machine can only process 100-200 kg of dry beans per hour, but with a peeling rate of less than 50%. To achieve the required 85% peeling rate, nearly 30 kg of dry beans would need to be processed per hour. This would require four conventional wet peeling machines with 0.375 kW motors, capable of peeling 30 kg per hour. This efficiency is over five times higher than the conventional wet peeling machine.

[0042] In this embodiment, after the soaked beans are rubbed and collided with the pipe for many times, basically 90% of the bean skins, bean kernels (cotyledons), and germs can be completely peeled off; and the beans do not need to be screened according to size in advance, and the task of achieving a high peeling rate can be achieved. The structure and operation are simple, and after the peeling is completed, only water rinsing is required. Since there are no dead corners in the pipes, delivery pumps, cyclone separators, etc., clean water is sucked from the feed port. The whole process only needs to be run once, and the cleaning work is also easier and more convenient to clean.

[0043] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An energy-saving and noise-reducing wet bean peeling device, characterized by: It includes a bean soaking barrel, a conveying pump, a feed pipe, a discharge pipe and a hull-kernel separation mechanism. One end of the conveying pump is connected to the bean soaking barrel through the feed pipe, and the other end is connected to the hull-kernel separation mechanism through the discharge pipe. The bean soaking barrel is used to accommodate and soak beans. The hull-kernel separation mechanism is provided with a kernel outlet and a hull outlet. The hull-kernel separation mechanism is used to separate the hulls and kernels of the peeled beans. The discharge pipe is bent and is used for peeling bean products. At least one section of spring tube and / or static mixing tube is provided on the discharge pipe.

2. The energy-saving and noise-reducing wet bean peeling device according to claim 1 is characterized in that: The discharge pipe includes at least one section of thin or thick pipes with different diameters.

3. The energy-saving and noise-reducing wet bean peeling device according to claim 1 is characterized in that: The discharge pipe is provided with at least one bend.

4. The energy-saving and noise-reducing wet bean peeling device according to claim 1 is characterized in that: The spring tube is a pipe with a section of spiral steel ring exposed inside.

5. The energy-saving and noise-reducing wet bean peeling device according to claim 1 is characterized in that: The static mixing tube is a pipeline with a section of spiral blades arranged therein.

6. The energy-saving and noise-reducing wet bean peeling device according to claim 5, characterized in that: A plurality of stainless steel bars are welded on the spiral blades.

7. The energy-saving and noise-reducing wet bean peeling device according to claim 1, characterized in that: The discharge pipe is a plastic hose and is provided with a pressure sensor.

8. The energy-saving and noise-reducing wet bean peeling device according to claim 1, characterized in that: The delivery pump is a peristaltic pump or a flexible pump; the hull-kernel separation mechanism is a cyclone separator, and a water filtering screen frame or a mesh bag is respectively provided below the kernel outlet and the hull outlet.

9. An energy-saving and noise-reducing wet bean peeling process, based on the energy-saving and noise-reducing wet bean peeling device according to any one of claims 1 to 8, characterized in that: The specific steps include: Step 1: Lightly roast the beans or directly soak them in water with an amount of water at least three times the weight of the beans, until the beans are soaked to more than ten times the weight of the original beans. Step 2: Turn on the delivery pump to suck the soaked bean product and water into the feed pipe and transport it to the discharge pipe, so that the soaked bean product is impacted, rubbed and peeled in the discharge pipe; In step 3, the peeled bean kernels, bean skins, germs, and water mixture is transported to a cyclone separator through the discharge pipe. The skins flow out from the skin outlet at the top of the cyclone separator and are collected by a sieve frame or a mesh bag. The mixed fluid of the bean kernels and germs flows out from the kernel outlet at the bottom of the cyclone separator and is collected by a sieve frame or a mesh bag. The falling liquid is recycled after passing through a filtering device.

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