A filtration device for syrup production

Abstract

This invention relates to filtration devices, providing a filtration device for syrup production, comprising a U-shaped filter tube, a leakage hole on the lower side of the filter tube, a tubular filter cloth disposed inside the filter tube, a pair of pulling devices respectively disposed at both ends of the filter cloth, a pair of cleaning devices respectively disposed inside both ends of the filter cloth, a liquid inlet pipe communicating with the interior of the filter cloth, and a discharge device disposed below the filter tube; the pulling devices are used to pull the filter cloth up and down; the length of the filter cloth is greater than the length of the filter tube. The filtration device for syrup production of this invention can achieve automatic cleaning of the continuous filter cloth without reducing filtration efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of filtration devices, and more specifically, to a filtration device for syrup production. Background Technology

[0002] Sugar is an indispensable sweetener and nutrient in human life. With the increase in sugar consumption in my country, the domestic production of sugar can no longer meet the demand. Raw sugar processing has become increasingly important in my country's sugar industry and has gradually become a focus of attention in the sugar manufacturing sector. The main processes of raw sugar processing into refined sugar include raw sugar remelting, clarification, decolorization, concentration, crystallization, separation, drying, and packaging.

[0003] Filtration is also a common process, mainly involving the removal of impurities from raw materials or syrup. Common filtration methods include filter cloth (which can filter very fine impurities, is low-cost, and easy to clean), but requires periodic shutdowns to replace or clean the filter cloth (or other filter media). This reduces production efficiency. Therefore, some filtration equipment incorporates a backwashing structure, enabling automatic rinsing of the filter cloth, even without stopping the machine. While this achieves continuous production to some extent, adding the backwashing structure reduces the original effective filtration volume, thus lowering filtration efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a filtration device for syrup production that can automatically clean the continuous filter cloth without reducing the filtration efficiency.

[0005] The embodiments of the present invention are achieved through the following technical solutions: The filtration device for syrup production of the present invention includes a U-shaped filter tube, a leakage hole opened on the lower side of the filter tube, a tubular filter cloth disposed inside the filter tube, a pair of pulling devices respectively disposed at both ends of the filter cloth, a pair of cleaning devices respectively disposed inside both ends of the filter cloth, a liquid inlet pipe communicating with the inside of the filter cloth, and a discharge device disposed below the filter tube; the pulling devices are used to pull the filter cloth up and down; the length of the filter cloth is greater than the length of the filter tube.

[0006] Furthermore, the cleaning device includes a water supply pipe disposed within the filter cloth, a spray pipe disposed at the lower end of the water supply pipe, a water supply device connected to the upper end of the water supply pipe, a negative pressure pipe disposed within the filter cloth, a liquid suction pipe disposed at the lower end of the negative pressure pipe, and a negative pressure device connected to the upper end of the negative pressure pipe; the outer wall of the spray pipe is provided with multiple spray holes, and the outer wall of the liquid suction pipe is provided with liquid suction holes.

[0007] Furthermore, the suction pipe is located below the spray pipe.

[0008] Furthermore, both the water spray pipe and the liquid suction pipe are annular; both the water spray pipe and the liquid suction pipe are located close to the filter cloth; and there is a gap between the water spray pipe and the liquid suction pipe and the filter cloth.

[0009] Furthermore, the negative pressure pipe is located inside the water supply pipe; the lower end of the negative pressure pipe passes through the lower end wall of the water supply pipe and is connected to the suction pipe.

[0010] Furthermore, the discharge device includes a discharge cover installed on the lower end wall of the filter tube, and a negative pressure suction device connected to the discharge cover, wherein the discharge cover is installed at the leakage hole.

[0011] Furthermore, the suction device includes a suction pipe connected to the discharge hood, a storage device connected to the suction pipe, and a negative pressure unit connected to the storage device.

[0012] Furthermore, the pulling device includes a fixing ring disposed at the end of the filter cloth, a traction rope connected to the fixing ring, and a lifting machine connected to the traction rope.

[0013] The technical solution of this invention has at least the following advantages and beneficial effects: In the syrup production filtration device of this invention, the syrup stock solution is pumped into the filter cloth through the inlet pipe during use. The syrup in the filter cloth is discharged after passing through the filter cloth and the leakage hole on the filter tube, while impurities remain in the filter cloth. When it is necessary to clean the filter cloth, one of the pulling devices can be used to pull one end of the filter cloth upward (the other end of the filter cloth downward), so that the blocked part of the filter cloth gradually comes into contact with one of the cleaning devices. The cleaning device cleans the blocked filter cloth. Then, another pulling device pulls the other end of the filter cloth upward, and the other cleaning device can clean the filter cloth. In this way, the filter cloth can be cleaned in real time without affecting continuous filtration (without stopping the machine for cleaning), so that the filter cloth always maintains a high permeability and a constant filtration efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a filtration device for syrup production provided in an embodiment of the present invention;

[0016] Figure 2This is a schematic diagram of the internal structure of a filtration device for syrup production provided in an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the filter cloth portion provided in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the filter tube portion provided in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the cleaning device provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the internal structure of the cleaning device provided in an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the discharge hood provided in an embodiment of the present invention;

[0022] Figure 8 for Figure 2 Enlarged view of section A.

[0023] Icons: 11-Filter tube, 12-Leakage hole, 13-Discharge hood, 14-Suction tube, 15-Filter cloth, 16-Fixing ring, 17-Traction rope, 18-Inlet tube, 21-Water supply tube, 22-Negative pressure tube, 23-Spray tube, 24-Suction tube. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example

[0030] The following description, in conjunction with specific embodiments, further illustrates the points, as shown in the appendix. Figure 1 -Appendix Figure 8 As shown, the filtration device for syrup production in this embodiment includes a U-shaped filter tube 11, a leakage hole 12 opened on the lower side of the filter tube 11, a tubular filter cloth 15 disposed inside the filter tube 11, a pair of pulling devices respectively disposed at both ends of the filter cloth 15, a pair of cleaning devices respectively disposed inside both ends of the filter cloth 15, a liquid inlet pipe 18 communicating with the inside of the filter cloth 15, and a discharge device disposed below the filter tube 11; the pulling devices are used to pull the filter cloth 15 up and down; the length of the filter cloth 15 is greater than the length of the filter tube 11. Specifically, during use, the syrup stock solution is pumped into the filter cloth 15 through the inlet pipe 18. The syrup in the filter cloth 15 passes through the filter cloth 15 and the leakage hole 12 on the filter tube 11 and is discharged. Impurities remain in the filter cloth 15. When it is necessary to clean the filter cloth 15, one of the pulling devices can be used to pull one end of the filter cloth 15 upward (the other end of the filter cloth 15 downward), so that the blocked part of the filter cloth 15 gradually comes into contact with one of the cleaning devices. The cleaning device cleans the blocked filter cloth 15. Then, another pulling device pulls the other end of the filter cloth 15 upward, and the other cleaning device can clean the filter cloth 15. In this way, the filter cloth 15 can be cleaned in real time without affecting continuous filtration (without stopping the machine for cleaning), so that the filter cloth 15 always maintains a high permeability and a constant filtration efficiency.

[0031] The cleaning device in this embodiment includes a water supply pipe 21 disposed within the filter cloth 15, a water spray pipe 23 disposed at the lower end of the water supply pipe 21, a water supply device connected to the upper end of the water supply pipe 21, a negative pressure pipe 22 disposed within the filter cloth 15, a liquid suction pipe 24 disposed at the lower end of the negative pressure pipe 22, and a negative pressure device connected to the upper end of the negative pressure pipe 22; the outer wall of the water spray pipe 23 has multiple water spray holes, and the outer wall of the liquid suction pipe 24 has liquid suction holes. The liquid suction pipe 24 is disposed below the water spray pipe 23. Both the water spray pipe 23 and the liquid suction pipe 24 are annular; both the water spray pipe 23 and the liquid suction pipe 24 are disposed close to the filter cloth 15; a gap is provided between the water spray pipe 23 and the liquid suction pipe 24 and the filter cloth 15. Specifically, the water supply device sprays the cleaning solution at high pressure through the water supply pipe 21 and the spray pipe 23, spraying it onto the inner wall of the filter cloth 15. This washes away impurities adhering to the surface of the filter cloth 15. Then, the wastewater flows down the inner wall of the filter cloth 15 and is sucked away by the suction pipe 24 below (the suction pipe 24 is provided by a negative pressure device through the negative pressure pipe 22). Because the two pulling devices can be controlled to continuously pull left and right and up and down during the filtration process, the filter cloth 15 is always in motion. Therefore, the amount of impurities adhering to the filter cloth 15 is not large, and it can be cleaned very well. The spray pipe 23 and the suction pipe 24 are both located close to the filter cloth 15 to prevent liquid from splashing into the syrup stock solution.

[0032] In this embodiment, the negative pressure pipe 22 is located inside the water supply pipe 21; the lower end of the negative pressure pipe 22 passes through the lower end wall of the water supply pipe 21 and connects to the suction pipe 24. Specifically, see attached... Figure 6 As shown, this reduces the amount of exposed pipes.

[0033] The discharge device in this embodiment includes a discharge cover 13 covering the lower end wall of the filter tube 11, and a negative pressure suction device communicating with the discharge cover 13. The discharge cover 13 covers the leakage hole 12. The suction device includes a suction pipe 14 connected to the discharge cover 13, a storage device connected to the suction pipe 14, and a negative pressure machine connected to the storage device. Specifically, see attached... Figure 7 As shown, using negative pressure to draw the syrup stock solution in the filter tube 11 can significantly improve the filtration rate.

[0034] The traction device in this embodiment includes a fixing ring 16 located at the end of the filter cloth 15, a traction rope 17 connected to the fixing ring 16, and a lifting machine connected to the traction rope 17. Specifically, the lifting machine can be any conventional vertical traction device.

[0035] In summary, the filtration device for syrup production in this embodiment pumps the syrup stock solution into the filter cloth 15 through the inlet pipe 18. The syrup in the filter cloth 15 passes through the filter cloth 15 and the leakage hole 12 on the filter tube 11 and is discharged. Impurities remain in the filter cloth 15. When it is necessary to clean the filter cloth 15, one of the pulling devices can be used to pull one end of the filter cloth 15 upward (the other end of the filter cloth 15 downward), so that the blocked part of the filter cloth 15 gradually comes into contact with one of the cleaning devices. The cleaning device cleans the blocked filter cloth 15. Then, another pulling device pulls the other end of the filter cloth 15 upward, and the other cleaning device can clean the filter cloth 15 again. In this way, the filter cloth 15 can be cleaned in real time without affecting continuous filtration (without stopping the machine for cleaning), so that the filter cloth 15 always maintains a high permeability and a constant filtration efficiency.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A filter device for the production of sugar syrup, characterized in that: The filter tube (11) comprises a U-shaped filter tube (11), a liquid leakage hole (12) formed in the lower side of the filter tube (11), a tubular filter cloth (15) arranged in the filter tube (11), a pair of pulling devices arranged at both ends of the filter cloth (15), a pair of cleaning devices arranged inside both ends of the filter cloth (15), a liquid inlet pipe (18) communicating with the inside of the filter cloth (15), and a discharge device arranged below the filter tube (11). The pulling device is used to pull the filter cloth (15) up and down; the length of the filter cloth (15) is greater than the length of the filter tube (11). The cleaning device comprises a water supply pipe (21) arranged in the filter cloth (15), a water spraying pipe (23) arranged at the lower end of the water supply pipe (21), a water supply device communicating with the upper end of the water supply pipe (21), a negative pressure pipe (22) arranged in the filter cloth (15), a liquid suction pipe (24) arranged at the lower end of the negative pressure pipe (22), and a negative pressure device communicating with the upper end of the negative pressure pipe (22). The outer wall of the water spraying pipe (23) is provided with a plurality of water spraying holes, and the outer wall of the liquid suction pipe (24) is provided with a plurality of liquid suction holes. The liquid suction pipe (24) is arranged below the water spraying pipe (23).

2. The filtering device for sugar syrup production according to claim 1, characterized in that: The water spraying pipe (23) and the liquid suction pipe (24) are both circular rings; the water spraying pipe (23) and the liquid suction pipe (24) are arranged close to the filter cloth (15); and a gap is arranged between the water spraying pipe (23), the liquid suction pipe (24) and the filter cloth (15).

3. The filtering device for sugar syrup production according to claim 1, characterized in that: The negative pressure pipe (22) is arranged inside the water supply pipe (21); the lower end of the negative pressure pipe (22) penetrates through the lower end wall of the water supply pipe (21) and communicates with the liquid suction pipe (24).

4. The filtering device for sugar syrup production according to claim 1, characterized in that: The discharge device comprises a discharge cover (13) arranged on the lower end wall of the filter tube (11), and a negative pressure suction device communicating with the discharge cover (13); the discharge cover (13) is arranged at the liquid leakage hole (12).

5. The filter device for sugar syrup production according to claim 4, characterized in that: The suction device comprises a suction pipe (14) connected with the discharge cover (13), a storage device connected with the suction pipe (14), and a negative pressure machine connected with the storage device.

6. The filtering device for sugar syrup production according to claim 1, characterized in that: The pulling device comprises a fixed ring (16) arranged at the end of the filter cloth (15), a traction rope (17) connected with the fixed ring (16), and a lifting machine connected with the traction rope (17).

Images