A desander for starch derivative production

Abstract

The utility model relates to a sand remover for starch derivative production, including the conical casing that is opened with feed inlet, overflow port and discharge port, and the overflow port is equipped with filter device, its characterized in that: filter device is cavity structure, and is equipped with paddle in filter device, and is equipped with the drive mechanism that drives paddle rotation on the casing, the utility model discloses paddle rotation in filter device is driven by drive mechanism, and the slurry in filter device is driven by paddle and flows outward, and the filter device is washed in reverse, improves the cleaning efficiency of sand and gravel on filter device.

Description

Technical Field

[0001] This utility model relates to the technical field of starch desanding equipment, and in particular to a desanding device for starch derivative production. Background Technology

[0002] Starch derivatives are a new type of starch product obtained by treating natural starch through physical, chemical, or biological methods to change the chemical structure of certain D-glucose units in its molecule, thereby significantly altering its physical and chemical properties. During the production of starch derivatives, it is necessary to remove impurities such as sand from the starch derivative slurry, and this process is usually achieved using a hydrocyclone desander.

[0003] The cyclone sand separator works by tangentially feeding slurry into a conical shell. The slurry rotates along the inner wall of the shell, generating centrifugal force, which separates the sand from the slurry. The sand and gravel are discharged from the discharge port at the bottom under the action of gravity, while the slurry converges towards the axis under the action of centripetal buoyancy and fluid drag, and then flows out from the overflow port at the top. However, some sand and gravel will flow towards the overflow port with the slurry. Some equipment will be equipped with a filter device at the overflow port for filtration, but this can easily lead to clogging of the filter device, requiring frequent cleaning. At the same time, disassembly and cleaning are inconvenient, which seriously affects the sand removal work.

[0004] Therefore, there is a need for a sand remover for starch derivative production that can improve the efficiency of sand and gravel removal on filtration devices. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a sand remover for starch derivative production. The drive mechanism rotates the paddles inside the filter device, and the paddles drive the slurry inside the filter device to flow outward, backwashing the filter device and improving the cleaning efficiency of sand and gravel on the filter device.

[0006] This utility model is achieved through the following technical solution: a sand remover for starch derivative production is provided, comprising a conical shell with an inlet, an overflow port, and a discharge port, wherein the overflow port is equipped with a filter device; the filter device has a cavity structure and is equipped with blades inside the filter device, and the shell is equipped with a drive mechanism for driving the blades to rotate; the drive mechanism drives the blades to rotate inside the filter device, and the blades drive the slurry inside the filter device to flow outward, backwashing the filter device and improving the cleaning efficiency of sand and gravel on the filter device.

[0007] As an optimization, the filter device is mounted on the housing, and the filter device and the blade are fixedly connected; the drive mechanism drives the filter device to rotate, and the filter device applies a certain centrifugal force to the sand and gravel attached to the outside, thereby improving the cleaning efficiency of the sand and gravel on the filter device.

[0008] As an optimization, a scraper is fixed on the housing, and the scraper is fitted to the outer wall of the filter device; the filter device rotates and passes through the scraper in sequence, and the scraper cleans the sand and gravel that is difficult to clean on the outside of the filter device, thereby improving the cleaning efficiency of sand and gravel on the filter device.

[0009] As an optimization, the blades are inclined radially along the blade rotation direction, and the blades are connected to the drive mechanism through a forward and reverse transmission device; the forward rotation of the blades accelerates the extraction of slurry from the housing, improving the sand and gravel filtration efficiency, while the reverse rotation of the blades increases the power of the slurry to flow outward, improving the sand and gravel cleaning efficiency on the filter device.

[0010] As an optimization, the blades are inclined along the axis of blade rotation, and the side of the blades facing the axis of blade rotation faces the overflow port; the forward rotation of the blades accelerates the discharge of slurry from the overflow port, improving the sand and gravel filtration efficiency, while the reverse rotation of the blades causes some blades to flow outward along the axis of blade rotation, cleaning the filter device corresponding to the axis of blade rotation.

[0011] The beneficial effects of this utility model are as follows: the drive mechanism drives the paddle to rotate inside the filter device, and the paddle drives the slurry inside the filter device to flow outward, which backwashes the filter device and improves the cleaning efficiency of the sand and gravel on the filter device.

[0012] The drive mechanism rotates the filter device, which applies a certain centrifugal force to the sand and gravel attached to the outside, thereby improving the cleaning efficiency of the sand and gravel on the filter device.

[0013] The forward rotation of the blades accelerates the extraction of slurry from the housing, improving the filtration efficiency of the sand and gravel. The reverse rotation of the blades increases the power of the slurry to flow outward, improving the cleaning efficiency of the sand and gravel on the filter device.

[0014] The forward rotation of the blades accelerates the discharge of slurry from the overflow port, improving the filtration efficiency of the sand and gravel. The reverse rotation of the blades causes some blades to flow outward along the axis of blade rotation, cleaning the filter device corresponding to the axis of blade rotation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the filter device and the blades of this utility model; As shown in the figure: 1. Shell, 2. Filter device, 3. Paddle, 4. Drive mechanism, 5. Scraper, 6. Forward and reverse transmission device, 7. Gear set, 8. Valve, 101. Inlet, 102. Overflow port, 103. Discharge port. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0017] like Figure 1 and 2 The sand remover for starch derivative production of this utility model includes a conical shell 1 with an inlet 101, an overflow 102, and a discharge 103. The overflow 102 is equipped with a filter device 2. The filter device 2 has a cavity structure and contains blades 3. The shell 1 is equipped with a drive mechanism 4 for driving the blades 3 to rotate. The discharge 103 is equipped with a valve 8. The filter device 2 is a cylindrical structure extending vertically. The blades 3 are arranged sequentially around the axis of the filter device 2. The drive mechanism 4 is activated periodically to clean the sand and gravel on the filter device 2. The drive mechanism 4 is existing technology.

[0018] The slurry enters the shell 1 tangentially from the feed inlet 101. The slurry rotates along the inner wall of the shell 1 and generates centrifugal force, causing sand and slurry separation. The sand and gravel are discharged from the discharge outlet 103 below under the action of gravity. The slurry converges towards the axis under the action of centripetal buoyancy and fluid drag, and then flows out from the overflow outlet 102 at the top. The filter device 2 filters the slurry flowing out of the overflow outlet 102, and some of the sand and gravel adhere to the filter device 2.

[0019] Start the drive mechanism 4. The drive mechanism 4 drives the blade 3 to rotate inside the filter device 2. The blade 3 drives the slurry inside the filter device 2 to rotate and generate a certain centrifugal force. Under the action of centrifugal force, the slurry flows outward and washes the filter device 2 in the reverse direction. The sand and gravel are separated from the filter device 2 and discharged from the discharge port 103 below under the action of gravity.

[0020] like Figure 1 The filter device 2 shown is mounted on the housing 1, and the filter device 2 and the blade 3 are fixedly connected; the filter device 2 is connected to the drive mechanism 4 through the gear set 7.

[0021] Start the drive mechanism 4, which drives the filter device 2 to rotate. The filter device 2 applies a certain centrifugal force to the sand and gravel attached to the outside, and the sand and gravel are removed from the filter device 2 under the action of centrifugal force.

[0022] At the same time, the filter device 2 drives the blade 3 to rotate. The blade 3 applies a certain centrifugal force to the slurry in the filter device 2. Under the action of centrifugal force, the slurry flows outward and washes the filter device 2 in the opposite direction, and the sand and gravel are removed from the filter device 2.

[0023] like Figure 1 A scraper 5 is fixedly mounted on the housing 1 shown, and the scraper 5 is fitted to the outer wall of the filter device 2.

[0024] Start the drive mechanism 4, which drives the filter device 2 to rotate. The filter device 2 passes through the scraper 5 in sequence, and the scraper 5 cleans the sand and gravel that are difficult to clean on the outside of the filter device 2.

[0025] like Figure 1The blade 3 shown is inclined radially along the rotation of the blade 3, and the blade 3 is connected to the drive mechanism 4 through the forward and reverse transmission device 6; the forward and reverse transmission device 6 is prior art.

[0026] Start the drive mechanism 4. The drive mechanism 4 drives the blade 3 to rotate forward through the forward and reverse transmission device 6 and accelerates the extraction of slurry from the shell 1. The drive mechanism 4 drives the blade 3 to rotate in the reverse direction through the forward and reverse transmission device 6 and increases the power of the slurry to flow outward.

[0027] like Figure 1 and 2 The blade 3 shown is inclined along the axis of rotation of the blade 3, and the side of the blade 3 facing the axis of rotation of the blade 3 faces the overflow port 102.

[0028] Start the drive mechanism 4. The drive mechanism 4 drives the blade 3 to rotate forward through the forward and reverse transmission device 6 and accelerates the extraction of slurry in the housing 1. At the same time, the blade 3 applies an upward force to the slurry in the filter device 2, and the slurry is accelerated to be discharged from the overflow port 102. The drive mechanism 4 drives the blade 3 to rotate in the reverse direction through the forward and reverse transmission device 6 and increases the power of the slurry to flow outward. At the same time, the blade 3 applies a downward force to the slurry in the filter device 2, and the slurry backwashes the bottom of the filter device 2.

[0029] In actual use, the slurry enters the shell 1 tangentially from the feed port 101. The slurry rotates along the inner wall of the shell 1 and generates centrifugal force, causing sand and slurry separation. The sand and gravel are discharged from the discharge port 103 below under the action of gravity. The slurry converges towards the axis under the action of centripetal buoyancy and fluid drag, and then flows out from the overflow port 102 at the top. The filter device 2 filters the slurry flowing out of the overflow port 102, and some of the sand and gravel adhere to the filter device 2.

[0030] Start the drive mechanism 4, which drives the blade 3 to rotate inside the filter device 2. The blade 3 drives the slurry inside the filter device 2 to rotate and generate a certain centrifugal force. Under the action of centrifugal force, the slurry flows outward and washes the filter device 2 in the reverse direction. The sand and gravel that have separated from the filter device 2 are discharged from the discharge port 103 below under the action of gravity.

[0031] Start the drive mechanism 4. The drive mechanism 4 drives the filter device 2 to rotate in the forward direction through the forward and reverse transmission device 6. The filter device 2 applies a certain centrifugal force to the sand and gravel attached to the outside. Under the action of centrifugal force, the sand and gravel are separated from the filter device 2. At the same time, the filter device 2 drives the blade 3 to rotate and accelerate the extraction of slurry in the housing 1. At the same time, the blade 3 applies an upward force to the slurry in the filter device 2, and the slurry is accelerated to be discharged from the overflow port 102.

[0032] The drive mechanism 4 drives the filter device 2 to rotate in the opposite direction through the forward and reverse transmission device 6. The blade 3 applies a certain centrifugal force to the slurry in the filter device 2. Under the action of centrifugal force, the slurry flows outward and washes the filter device 2 in the reverse direction, and the sand and gravel are separated from the filter device 2. At the same time, the blade 3 applies a downward force to the slurry in the filter device 2. The slurry washes the bottom of the filter device 2 in the reverse direction, and the sand and gravel that are separated from the filter device 2 are discharged from the discharge port 103 below under the action of gravity.

[0033] At the same time, when the filter device 2 rotates, the outer side of the filter device 2 passes through the scraper 5 in sequence, and the scraper 5 cleans up the sand and gravel that are difficult to clean on the outer side of the filter device 2.

[0034] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A sand remover for starch derivative production, comprising a conical shell (1) having an inlet (101), an overflow (102), and a discharge (103), wherein the overflow (102) is provided with a filter device (2); characterized in that: The filter device (2) has a cavity structure and is equipped with a blade (3) inside the filter device (2). The housing (1) is equipped with a drive mechanism (4) to drive the blade (3) to rotate.

2. The sand remover for starch derivative production according to claim 1, characterized in that: The filter device (2) is mounted on the housing (1), and the filter device (2) and the blade (3) are fixedly connected.

3. The sand remover for starch derivative production according to claim 2, characterized in that: A scraper (5) is fixed on the housing (1), and the scraper (5) and the outer wall of the filter device (2) are attached together.

4. The sand remover for starch derivative production according to claim 1, characterized in that: The blade (3) is inclined radially along the rotation of the blade (3), and the blade (3) is connected to the drive mechanism (4) through the forward and reverse transmission device (6).

5. The sand remover for starch derivative production according to claim 4, characterized in that: The blade (3) is inclined along the axis of rotation of the blade (3), and the side of the blade (3) facing the axis of rotation of the blade (3) faces the overflow port (102).

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