Cassava peeling method

Abstract

The invention relates to a cassava peeling method which comprises the following steps: freezing cassava, and then putting the cassava which is frozen for a set time into warm water for unfreezing to obtain unfrozen cassava; and the unfrozen cassava is put into peeling equipment to be subjected to rotary extrusion, the cassava peel is peeled, and cassava peeling is completed. Compared with the prior art, the inner skin and the epidermis of the cassava can fall off more easily, peeling is more complete, peeling efficiency is improved, and loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural product processing equipment, and in particular to a cassava peeling method. Background Art

[0002] Before processing cassava, it needs to be peeled. However, the skin of cassava is different from that of other agricultural products. Cassava has an outer skin and an inner skin. Using traditional agricultural product peeling methods or peeling equipment for peeling may result in incomplete peeling or excessive peeling, causing more damage to cassava. Therefore, it is necessary to solve this problem. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, one object of the present invention is to provide a cassava peeling method that is easier to peel, more complete to peel, improves peeling efficiency, and reduces loss.

[0004] The technical solution of the present invention to solve the above technical problem is as follows: a cassava peeling method, comprising the following steps:

[0005] Freezing the cassava, and then putting the cassava frozen for a set time into warm water for thawing to obtain thawed cassava;

[0006] The thawed cassava is placed in the peeling equipment for rotation and extrusion to peel the cassava skin, thereby completing the cassava peeling.

[0007] The beneficial effects of the present invention are as follows: by changing the water structure in the cassava, a force is generated on the fleshy part, the inner skin and the epidermis of the cassava, and the force causes internal separation between the fleshy part, the inner skin and the epidermis of the cassava; the thawed cassava is put into a peeling device for peeling, and the peeling device is used to apply an external force to the cassava, so that the inner skin and the epidermis of the cassava are easier to fall off, the peeling is more complete, and the peeling efficiency is improved; the power of the peeling device in the peeling process can also be reduced, the wear on the fleshy part of the cassava is reduced, and the loss is reduced.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the cassava is frozen for more than 8 hours; and the frozen cassava is put into warm water for 1 to 2 minutes for thawing.

[0010] Furthermore, the method further comprises the following steps: before freezing the cassava, the cassava is spread out in an open field and aired for 4 to 6 hours to reduce the dryness of the cassava, and then water is sprayed on the surface of the cassava to moisten the epidermis of the cassava and keep the main body of the cassava dry.

[0011] The beneficial effect of adopting the above further scheme is that the water content between the fleshy part and the inner skin of the cassava is different, so that the fleshy part and the inner skin of the cassava are subjected to different forces, and this force causes internal separation between the fleshy part and the inner skin of the cassava, thereby reducing the difficulty of separating the inner skin from the fleshy part of the cassava and improving the peeling efficiency.

[0012] Furthermore, the method includes the following steps: before the cassava is put into the peeling device, the cassava is sent to the cutting device for cutting, the cassava is cut into seven pieces along the length direction of the cassava, and then the cassava is cut along the radial direction of the cassava, and the cut cassava is transported to the peeling device.

[0013] The beneficial effect of adopting the above further scheme is: the skin and inner skin of the cassava are cut, so that the multiple pieces of skin and inner skin on the cassava are quickly separated from the cassava fleshy part under the action of the peeling equipment, thereby improving the peeling efficiency of the cassava, reducing the wear on the cassava fleshy part, and reducing the loss.

[0014] Further, the peeling device comprises:

[0015] A chassis, the chassis comprising a first box body and a second box body with an upward opening, wherein the first box body and the second box body are integrally formed;

[0016] A motor, wherein the motor is fixedly placed in the first box;

[0017] A plurality of hair rollers, wherein the plurality of hair rollers are rotatably arranged in a V-shape in the second housing;

[0018] A plurality of sprockets are rotatably placed on the side wall of the first box body, and the ends of the plurality of hair rollers extend into the first box body and are respectively connected to the plurality of sprockets one by one; the plurality of sprockets are linked by chains, and one sprocket is connected to the output end of the motor through a coupling.

[0019] The beneficial effect of adopting the above further solution is that the cassava put in is rotated, squeezed and peeled during the rotation of the multiple hair rollers, which can effectively improve the peeling efficiency of the cassava.

[0020] Furthermore, the peeling device also includes:

[0021] A cylinder, wherein the cylinder is fixedly placed in the first housing, an output end of the cylinder extends into the second housing, and a push block is fixedly connected to the output end of the second cylinder;

[0022] A discharge port is arranged on the side wall of the second box body at one end away from the cylinder, and a sealing plate for closing the discharge port is arranged at the discharge port, and the sealing plate is detachably connected to the side wall of the second box body; a drainage port is arranged on the side wall of the second box body below the discharge port.

[0023] The beneficial effect of adopting the above further scheme is that the cylinder drives the push block to move, and the peeled cassava in the second box is pushed out from the discharge port, so as to realize automatic and continuous peeling and improve the cassava peeling efficiency.

[0024] Furthermore, the peeling device also includes:

[0025] A water spray pipe is fixedly disposed on the upper end of the side wall of the second box body, a water inlet end of the water spray pipe is connected to a water source, and the water spray pipe is provided with a plurality of water spray ports for spraying water into the second box body.

[0026] The beneficial effect of adopting the above further scheme is that spraying water to the cassava through the water spray pipe can accelerate the separation of the skin and the inner skin from the cassava, and can also accelerate the skin and the inner skin to fall to the bottom of the second box, thereby avoiding the wear of the fleshy part of the cassava by the detached skin and the inner skin, reducing the loss, and can also improve the peeling efficiency of the cassava, and can also keep the cassava clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A flow chart of a cassava peeling method according to the present invention;

[0028] Figure 2 It is a front view of the peeling device of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the peeling device of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. chassis, 101. first box body, 102. second box body;

[0032] 2. Motor, 3. Wool roller, 4. Sprocket, 5. Cylinder, 6. Push block, 7. Sealing plate, 8. Water spray pipe. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1 As shown, a cassava peeling method comprises the following steps:

[0035] Freezing the cassava for more than 8 hours, and then putting the frozen cassava into warm water for 1 to 2 minutes to thaw, thereby obtaining thawed cassava;

[0036] The thawed cassava is placed in the peeling equipment for rotation and extrusion to peel the cassava skin, thereby completing the cassava peeling.

[0037] In specific application, the cassava is first frozen for more than 8 hours, so that the water in the cassava undergoes structural changes after freezing. After the structural changes, the water in the cassava produces a force on the fleshy part, the inner skin and the outer skin of the cassava, and the force causes internal separation between the fleshy part, the inner skin and the outer skin of the cassava; the frozen cassava is then put into warm water for thawing, so that the water in the inner skin and the outer skin of the cassava is restored to a liquid state, thereby avoiding resistance to subsequent peeling, so that the cassava peeling is more efficient; the thawed cassava is put into a peeling device for peeling, and the peeling device is used to apply external force to the cassava, so that the inner skin and the outer skin of the cassava are easier to fall off, the peeling is more complete, and the peeling efficiency is improved; the power of the peeling device during the peeling process can also be reduced, the wear on the fleshy part of the cassava can be reduced, and the loss can be reduced.

[0038] This embodiment also tests the effect of freezing time on cassava peeling efficiency. The specific test method is: after harvesting three cassava varieties, namely, South China 9 (SC9), Guire 891 (GR891), and Nanzhi 199 (NZ199), select cassava tubers with a tuber diameter of 3.5-4.5 cm and put them into a cold storage at -18°C for freezing. After freezing for 4, 8, 12, 16, 24, 48, 72 / 7 days, and 14 days, respectively, the cassava is put into warm water for thawing. The thawed cassava is then subjected to an investigation on the efficiency of manual peeling. The average weight of cassava tubers that can be peeled by three skilled workers in 1 hour with different freezing times is recorded respectively, and the peeling efficiency of unfrozen cassava tubers at room temperature is used as a control (CK).

[0039] Test results:

[0040] Table 1 Effect of freezing time on peeling efficiency of different varieties

[0041]

[0042] The following conclusions can be drawn from the data obtained from the above experiments: 1. Different cassava varieties have no effect on the efficiency of cassava peeling; 2. The peeling effect is better when frozen for 8 hours to 48 hours, and the peeling efficiency is significantly reduced after freezing for 72 hours; 3. Choosing freezing for 8 hours has high peeling efficiency and better energy saving.

[0043] The above embodiment also includes the following steps: before freezing the cassava, the cassava is spread out in an open field and aired for 4 to 6 hours to reduce the dryness of the cassava, and then water is sprayed on the surface of the cassava to moisten the epidermis of the cassava and keep the main body of the cassava dry.

[0044] In specific application, the cassava is placed in an open field for drying for 4 to 6 days to reduce the moisture content of the cassava inner skin, outer skin and fleshy part, and then water is sprayed on the surface of the cassava so that the moisture content of the cassava outer skin and inner skin is greater than the moisture content of the fleshy part. After the cassava is subsequently frozen, the moisture on the cassava outer skin and inner skin will form a solid state, which will exert force on the cassava outer skin and inner skin. The fleshy part and the inner skin of the cassava have different moisture contents, so that the fleshy part and the inner skin of the cassava are subjected to different forces. The force causes internal separation between the fleshy part and the inner skin of the cassava, thereby reducing the difficulty of the inner skin being separated from the fleshy part of the cassava and improving the peeling efficiency.

[0045] The above embodiment also includes the following steps: before the cassava is placed in the peeling device, the cassava is sent to the cutting device for cutting, the cassava is cut into seven pieces along the length direction of the cassava, and then the cassava is cut along the radial direction of the cassava, and the cut cassava is obtained and transported to the peeling device.

[0046] In specific application, the cassava is cut in the length direction and radial direction, that is, the skin and the inner skin of the cassava are cut, so that the skin and the inner skin are cut into different blocks. After the cassava is placed in the peeling equipment, the peeling equipment produces a rotating extrusion peeling on the cassava. There is no interaction force between the skins and the inner skins of the multiple blocks, so that the skins and the inner skins of the multiple blocks on the cassava are quickly separated from the fleshy part of the cassava, thereby improving the peeling efficiency of the cassava, reducing the wear on the fleshy part of the cassava, and reducing the loss.

[0047] In the above embodiment, Figure 2 and Figure 3 As shown, the peeling device comprises:

[0048] The chassis 1 comprises a first box body 101 and a second box body 102 with an opening upward, wherein the first box body 101 and the second box body 102 are integrally formed;

[0049] A motor 2, wherein the motor 2 is fixedly placed in the first box body 101;

[0050] A plurality of hair rollers 3, wherein the plurality of hair rollers 3 are rotatably arranged in a V-shape in the second box body 102;

[0051] Multiple sprockets 4 are rotatably placed on the side wall of the first box body 101, and the ends of multiple hair rollers 3 extend into the first box body 101 and are respectively connected to the multiple sprockets 4 one by one; multiple sprockets 4 are linked by chains, and one sprocket 4 is connected to the output end of the motor 2 through a coupling.

[0052] In specific applications, the output end of the motor 2 drives a sprocket 4 to rotate through a coupling, and the sprocket 4 rotates with multiple sprockets 4 through a chain. During the rotation of the multiple sprockets 4, the multiple hair rollers 3 are driven to rotate. During the rotation of the multiple hair rollers 3, the cassava placed in is rotated, squeezed and peeled, which can effectively improve the peeling efficiency of the cassava.

[0053] In the above embodiment, the peeling device further includes:

[0054] The cylinder 5 is fixedly placed in the first box body 101, the output end of the cylinder 5 extends into the second box body 102, and the output end of the second cylinder 5 is fixedly connected with a push block 6;

[0055] A discharge port is arranged on the side wall of the second box body 102 at one end away from the cylinder 5, and a sealing plate 7 for closing the discharge port is arranged at the discharge port, and the sealing plate 7 is detachably connected to the side wall of the second box body 102; a drainage port is arranged on the side wall of the second box body 102 below the discharge port.

[0056] During specific application, the output end of the cylinder 5 is extended at a fixed time, and the pushing block 6 is driven to move in the second box body 102 during the extension process; multiple hair rollers 3 are arranged in a V shape to make the peeled cassava at the bottom, and the peeled cassava in the second box body 102 is pushed out from the discharge port during the movement of the pushing block 6, thereby realizing automatic and continuous peeling.

[0057] In the above embodiment, the peeling device further includes:

[0058] A water spray pipe 8 is fixedly placed on the upper end of the side wall of the second box body 102 , a water inlet end of the water spray pipe 8 is connected to a water source, and a plurality of water spray ports for spraying water into the second box body 102 are arranged on the water spray pipe 8 .

[0059] In specific application, during the cassava peeling process, the water spray pipe 8 continuously sprays water to the second box 102 to rinse the cassava; the cassava is continuously rotated and squeezed during the peeling process, and continuously spraying water on the cassava can accelerate the separation of the epidermis and the inner skin from the cassava, and can also accelerate the epidermis and the inner skin to fall to the bottom of the second box 102, thereby avoiding the wear of the fleshy part of the cassava by the detached epidermis and the inner skin, reducing losses, and also improving the peeling efficiency of the cassava, and can also keep the cassava clean.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cassava peeling method, characterized in that: The following steps are involved: Freezing the cassava, and then putting the cassava frozen for a set time into warm water for thawing to obtain thawed cassava; The thawed cassava is placed in the peeling equipment for rotation and extrusion to peel the cassava skin, thereby completing the cassava peeling.

2. The cassava peeling method according to claim 1, characterized in that: The cassava is frozen for more than 8 hours; and the frozen cassava is placed in warm water for 1 to 2 minutes to thaw.

3. The cassava peeling method according to claim 1, characterized in that: The following steps are also included: Before the cassava is frozen, the cassava is spread out in an open field and air-dried for 4 to 6 hours to reduce the dryness of the cassava, and then water is sprayed on the surface of the cassava to moisten the epidermis of the cassava and keep the main body of the cassava dry.

4. The cassava peeling method according to claim 1, characterized in that: The following steps are also included: Before the cassava is put into the peeling equipment, it is sent to the cutting equipment for cutting. The cassava is cut into seven pieces along the length direction of the cassava, and then the cassava is cut along the radial direction of the cassava. The cut cassava is transported to the peeling equipment.

5. The cassava peeling method according to claim 1, characterized in that: The peeling equipment comprises: A chassis (1), the chassis (1) comprising a first box body (101) and a second box body (102) with an opening upward, the first box body (101) and the second box body (102) being integrally formed; A motor (2), the motor (2) being fixedly placed in the first box (101); A plurality of hair rollers (3), wherein the plurality of hair rollers (3) are rotatably arranged in a V-shape within the second box body (102); A plurality of sprockets (4) are rotatably disposed on the side wall of the first housing (101); ends of the plurality of wool rollers (3) extend into the first housing (101) and are respectively connected to the plurality of sprockets (4) in a one-to-one correspondence; the plurality of sprockets (4) are linked by a chain, and one of the sprockets (4) is connected to the output end of the motor (2) via a coupling.

6. The cassava peeling method according to claim 5, characterized in that: The peeling device also includes: A cylinder (5), wherein the cylinder (5) is fixedly placed in the first box (101), an output end of the cylinder (5) extends into the second box (102), and a push block (6) is fixedly connected to the output end of the second cylinder (5); A discharge port is arranged on the side wall of one end of the second box body (102) away from the cylinder (5), and a sealing plate (7) for closing the discharge port is arranged at the discharge port, and the sealing plate (7) is detachably connected to the side wall of the second box body (102); a drainage port is arranged on the side wall of the second box body (102) below the discharge port.

7. The cassava peeling method according to claim 5, characterized in that: The peeling device also includes: A water spray pipe (8), the water spray pipe (8) is fixedly placed on the upper end of the side wall of the second box body (102), the water inlet end of the water spray pipe (8) is connected to a water source, and the water spray pipe (8) is provided with a plurality of water spray ports for spraying water into the second box body (102).

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