Automatic backwash adjusting device for ceramic filter

Abstract

This invention discloses an automatic backwashing adjustment device for a ceramic filter, comprising: a frame, within which a rotatable filter chamber is disposed; a drive unit for rotating the filter chamber is disposed on one side of the frame; and a negative pressure pump communicating with the filter chamber is disposed on the other side of the frame; and an adjustment device disposed between the negative pressure pump and the filter chamber. In this invention, during the filtration process, the negative pressure inside the filter chamber continuously rises. At this time, a first flexible part on the adjustment device deforms accordingly. The deformation of the first flexible part acts on the valve core of the adjustment valve through an adjustment abutment. When the negative pressure inside the filter chamber rises to a certain threshold, the valve core of the adjustment valve switches under the action of the adjustment abutment, changing the direction of the input and output ends of the negative pressure pump. At this time, the negative pressure pump draws the filtered liquid to backwash the filter chamber. Through the above structural design, the device can automatically backwash according to the clogging status of the filter chamber.

Description

Technical Field

[0001] This invention relates to the field of ceramic filter equipment technology, and in particular to an automatic backwashing adjustment device for ceramic filters. Background Technology

[0002] A ceramic filter is a new type of solid-liquid separation equipment that uses porous ceramics as the filter medium, enabling efficient and energy-saving solid-liquid separation. The equipment mainly consists of ceramic filter plates, a roller system, a stirring system, a feeding and discharging system, a vacuum system, a filtrate discharge system, a scraping system, a backwashing system, a combined cleaning system (ultrasonic cleaning and automatic acid mixing cleaning), a fully automatic control system, a tank, and a frame.

[0003] Backwashing of ceramic filters refers to cleaning the filter media in a specific way to restore its filtration performance. Backwashing can effectively remove solid particles from the filter media, extend the service life of the equipment, and ensure the filtration effect. Under normal circumstances, the backwashing cycle of ceramic filters is once every 2-4 hours. The specific backwashing time can be adjusted according to the actual working conditions. By performing backwashing regularly, the efficient and stable operation of ceramic filters can be ensured.

[0004] The aforementioned periodic backwashing method has different washing times depending on the medium being filtered. It is difficult for users to wash the ceramic filter plate according to its clogging status. The existing technology determines whether washing is needed by observing the filtration volume. This method requires manual judgment based on human experience and manual backwashing, which has room for improvement. Therefore, an automatic backwashing adjustment device for ceramic filters is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing an automatic backwashing adjustment device for ceramic filters.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an automatic backwashing adjustment device for a ceramic filter, comprising:

[0007] The frame contains a rotatable filter chamber, a drive unit for rotating the filter chamber is located on one side of the frame, and a negative pressure pump connected to the filter chamber is located on the other side of the frame.

[0008] An adjusting device is provided between the negative pressure pump and the filter chamber, and an adjusting valve for communicating with the negative pressure pump is also provided on the side of the adjusting device;

[0009] The regulating device has a first flexible part on the side away from the regulating valve. The first flexible part is provided with an regulating tube. The first flexible part is used to deform with the change of negative pressure inside the filter chamber and drive the regulating tube to move. The regulating tube is provided with an regulating plate. The regulating plate is connected to the regulating valve and is used to switch the regulating valve when the regulating tube moves, so that the negative pressure pump backwashes the filter chamber.

[0010] The adjusting device is provided with a limiting rod corresponding to the adjusting tube, and the limiting rod is provided with a locking mechanism. The adjusting tube is provided with locking teeth corresponding to the locking mechanism.

[0011] Furthermore, the adjusting device also includes a second flexible part, on which a locking bracket is provided. The bottom of the adjusting abutment tube has an unlocking part for the locking bracket to pass through. The locking bracket is used to move with the deformation of the second flexible part. The locking bracket is used to engage with the locking teeth to lock the adjusting abutment tube. The locking bracket is provided with a flexible paddle, which is used to contact the locking mechanism and change its tilt state, so that the locking mechanism disengages from the locking teeth and unlocks.

[0012] Furthermore, the limiting rod has a mounting groove corresponding to the locking mechanism, and the locking mechanism has a hinge shaft rotatably connected to the mounting groove at its center;

[0013] The hinge shaft is equipped with an offset spring to offset the locking mechanism to one side.

[0014] Furthermore, the locking mechanism is provided with abutting teeth for engaging with the locking teeth;

[0015] The locking mechanism has a reset plate on the side away from the contact teeth for contacting the flexible lever.

[0016] Furthermore, the locking bracket is U-shaped, and one end of the locking bracket extends into the interior of the adjusting abutment tube through the unlocking part;

[0017] The locking bracket extends into the adjusting tube at one end and has a tapered portion for engaging with the locking teeth.

[0018] Furthermore, both the first flexible portion and the second flexible portion are made of flexible rubber, and both are hemispherical.

[0019] Furthermore, the regulating valve is a two-position four-way valve;

[0020] The regulating valve is connected to the filter chamber and the liquid storage tank. The valve core of the regulating valve is fixedly connected to the regulating plate, so as to change the passage state of the regulating valve as the regulating plate moves.

[0021] Furthermore, the frame is equipped with an unloading area and an ultrasonic device.

[0022] Furthermore, the adjusting device is rotatably connected to the filter chamber, which includes a hollow rotor and multiple ceramic discs communicating with the hollow rotor.

[0023] Furthermore, the adjusting abutment tube is sleeved with a limiting rod, and the limiting rod is used to restrict the movement direction of the adjusting abutment tube.

[0024] The beneficial effects of this invention are reflected in:

[0025] In this invention, during the filtration process in the filter chamber, solid particles on the filter medium are trapped on the ceramic. Some fixed particles will clog the porous structure. When the clogging is severe, the negative pressure in the filter chamber continues to rise. At this time, the first flexible part on the regulating device will deform accordingly. The deformation of the first flexible part will act on the valve core of the regulating valve through the regulating pipe. When the negative pressure in the filter chamber rises to a certain threshold, the valve core of the regulating valve switches under the action of the regulating pipe, changing the direction of the input and output ends of the negative pressure pump. At this time, the negative pressure pump draws the filtered liquid to backwash the filter chamber. Through the above structural setting, the equipment can automatically backwash according to the clogging of the filter chamber. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a cross-sectional view of the adjusting device of the present invention;

[0028] Figure 3 This is a structural view of an embodiment of the regulating device of the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified view of part A in the diagram;

[0030] Figure 5 This is a schematic diagram of the structure of the regulating device according to Embodiment 2 of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of a portion of point B in the middle;

[0032] Figure 7 This is a schematic diagram of the regulating valve of the present invention.

[0033] In the picture:

[0034] 1. Frame; 11. Unloading area;

[0035] 2. Filter chamber;

[0036] 3. Drive unit;

[0037] 4. Negative pressure pump;

[0038] 5. Adjustment device; 51. First flexible part; 52. Adjustment abutment tube; 521. Adjustment plate; 522. Locking tooth; 523. Unlocking part; 53. Limiting rod; 531. Locking mechanism; 532. Hinge shaft; 533. Abutment tooth; 534. Reset plate; 54. Second flexible part; 55. Locking bracket; 551. Flexible lever; 6. Adjustment valve. Detailed Implementation

[0039] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-7 This invention discloses an automatic backwashing adjustment device for a ceramic filter, comprising:

[0041] The frame 1 has a rotatable filter chamber 2 inside. A drive unit 3 for driving the filter chamber 2 to rotate is provided on one side of the frame 1. A negative pressure pump 4 connected to the filter chamber 2 is provided on the other side of the frame 1. It should be noted that the ceramic filter also has other structural components. The ceramic filter is a relatively mature technology in the prior art, so it is not described in detail.

[0042] Adjustment device 5, which is located between negative pressure pump 4 and filter chamber 2, and adjustment valve 6 for communicating with negative pressure pump 4 is also provided on the side of adjustment device 5;

[0043] The regulating device 5 is provided with a first flexible part 51 on the side away from the regulating valve 6. The first flexible part 51 is provided with an regulating tube 52. The first flexible part 51 is used to deform with the change of negative pressure inside the filter chamber 2 and drive the regulating tube 52 to move. The regulating tube 52 is provided with an regulating plate 521. The regulating plate 521 is connected to the regulating valve 6 and is used to switch the regulating valve 6 when the regulating tube 52 moves, so that the negative pressure pump 4 backwashes the filter chamber 2.

[0044] The adjusting device 5 is provided with a limiting rod 53 corresponding to the adjusting tube 52. The limiting rod 53 is provided with a locking mechanism 531. The adjusting tube 52 is provided with a locking tooth 522 corresponding to the locking mechanism 531.

[0045] When this application is in use, with the above-mentioned structural setting, during the continuous operation of the negative pressure pump 4, solid particles on the filter medium are trapped on the ceramic during the filtration process of the filter chamber 2. Some fixed particles will block the porous structure. When the blockage is more serious, the negative pressure in the filter chamber 2 will continue to rise. At this time, the first flexible part 51 on the regulating device 5 will deform accordingly. The deformation of the first flexible part 51 will act on the valve core of the regulating valve 6 through the regulating pipe 52. When the negative pressure in the filter chamber 2 rises to a certain threshold, the valve core of the regulating valve 6 will switch under the action of the regulating pipe 52, changing the direction of the input and output ends of the negative pressure pump 4. At this time, the negative pressure pump 4 will draw the filtered liquid to backwash the filter chamber 2.

[0046] The above-mentioned structural design enables the equipment to automatically perform backwashing based on the clogging status of the porous structure.

[0047] It should be further noted that the adjusting device 5 described in this application also includes a second flexible part 54, on which a locking bracket 55 is provided. The bottom of the adjusting abutment tube 52 is provided with an unlocking part 523 for the locking bracket 55 to pass through. The locking bracket 55 is used to move with the deformation of the second flexible part 54. The locking bracket 55 is used to engage with the locking teeth 522 to lock the adjusting abutment tube 52. The locking bracket 55 is provided with a flexible lever 551, which is used to contact the locking mechanism 531 and change its tilt state, so that the locking mechanism 531 disengages from the locking teeth 522 and unlocks.

[0048] With the above structural setup, during the backwashing process of the equipment, the negative pressure inside the regulating device 5 disappears. Conversely, the regulating device 5 changes to a positive pressure state under the action of the cleaning fluid. At this time, the abutting tooth 533 on the locking mechanism 531 engages with the locking tooth 522 to prevent the regulating tube 52 from retracting directly, causing the regulating valve 6 to switch back and resulting in insufficient backwashing time.

[0049] The second flexible section 54 and the locking bracket 55 are designed so that during backwashing, the second flexible section 54 changes from a negative pressure state to a positive pressure state, causing it to expand. This expands the locking bracket 55, which in turn raises it. During this rise, the locking bracket 55 inserts into the adjusting tube 52 via the unlocking part 523, and the top of the adjusting tube 52 engages with the locking teeth 522. The locking bracket 55 also features a flexible lever 551. Figure 6 As shown, the flexible paddle 551 will contact the reset piece 534, change the tilt state of the locking mechanism 531, disengage the locking mechanism 531 from the locking teeth 522 of the adjusting tube 52, and allow the locking bracket 55 to lock the adjusting tube 52 alone.

[0050] During the backwashing process, the regulating device 5 is under positive pressure. After the backwashing is completed, the fixed particles blocking the porous structure are cleared, and the pressure inside the regulating device 5 drops. At this time, the second flexible part 54 contracts accordingly, thereby driving the locking bracket 55 to descend. The locking bracket 55 disengages from the locking teeth 522 inside the regulating tube 52. At this time, the first flexible part 51 is unlocked, the regulating tube 52 retracts, and the regulating valve 6 is switched again to perform negative pressure suction. At the same time, during the descent of the locking bracket 55, the flexible paddle 551 set on it will contact the reset piece 534, so that the locking mechanism 531 is reset and returns to the stage where the regulating tube 52 can be locked.

[0051] like Figure 6 As shown, the limiting rod 53 has a mounting groove corresponding to the locking mechanism 531, and the locking mechanism 531 has a hinge shaft 532 that is rotatably connected to the mounting groove at the center.

[0052] The hinge shaft 532 is equipped with an offset spring, which is used to offset the locking mechanism 531 to one side. It should be noted that when the external force exceeds a certain threshold, the offset spring will change the tilt state of the locking mechanism 531, and the locking mechanism 531 will remain in this state until it is affected by subsequent external forces and switches.

[0053] In this embodiment, the locking mechanism 531 is provided with abutting teeth 533 for engaging with locking teeth 522;

[0054] The locking mechanism 531 has a reset piece 534 on the side away from the contact tooth 533 for contacting the flexible paddle 551.

[0055] As shown in the figure, the locking bracket 55 is U-shaped, and one end of the locking bracket 55 extends into the adjusting tube 52 through the unlocking part 523;

[0056] The locking bracket 55 extends into the interior of the adjusting tube 52 and has a tapered portion for engaging with the locking teeth 522.

[0057] It should be noted that both the first flexible part 51 and the second flexible part 54 are flexible rubbers, and the first flexible part 51 and the second flexible part 54 are hemispherical. The first flexible part 51 and the second flexible part 54 can be replaced by existing structures or materials that can achieve the same effect.

[0058] It should be noted that, as Figure 7 As shown, the regulating valve 6 is a two-position four-way valve;

[0059] The regulating valve 6 is connected to the filter chamber 2 and the liquid storage tank. The valve core of the regulating valve 6 is fixedly connected to the regulating plate 521, which is used to change the passage state of the regulating valve 6 as the regulating plate 521 moves. The other passage of the regulating valve core is designed to be cross-connected. When the valve core is switched, the input and output directions of the negative pressure pump 4 will be switched, changing from drawing liquid from the filter chamber 2 into the liquid storage tank to drawing liquid from the inside of the liquid storage tank and injecting it into the filter chamber 2 for backwashing.

[0060] It is easy to imagine that the frame 1 is provided with a discharge area 11, and the frame 1 is also provided with an ultrasonic device, which is used to assist the backwashing process for cleaning.

[0061] It is easy to imagine that the adjusting device 5 is rotatably connected to the filter chamber 2, and the filter chamber 2 includes a hollow rotor and a plurality of ceramic discs communicating with the hollow rotor.

[0062] like Figure 3 As shown, the adjusting tube 52 is sleeved with the limiting rod 53. The limiting rod 53 is used to restrict the movement direction of the adjusting tube 52 and to restrict the movement path of the adjusting tube 52 when the first flexible part 51 extends, so as to ensure that the adjusting tube 52 moves horizontally and can act on the regulating valve 6.

[0063] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0064] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0065] Additionally, "multiple" refers to two or more.

[0066] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic backwashing adjustment device for a ceramic filter, characterized in that, include: A frame (1) is provided with a rotatable filter chamber (2) inside the frame (1). A drive unit (3) for driving the filter chamber (2) to rotate is provided on one side of the frame (1). A negative pressure pump (4) connected to the filter chamber (2) is provided on the other side of the frame (1). Adjustment device (5), the adjustment device (5) is located between the negative pressure pump (4) and the filter chamber (2), and the adjustment device (5) is also provided with an adjustment valve (6) for communicating with the negative pressure pump (4) on its side. The regulating device (5) has a first flexible part (51) on the side away from the regulating valve (6). The first flexible part (51) is provided with a regulating tube (52). The first flexible part (51) is used to deform with the change of negative pressure inside the filter chamber (2) and drive the regulating tube (52) to move. The regulating tube (52) is provided with a regulating plate (521). The regulating plate (521) is connected to the regulating valve (6) and is used to switch the regulating valve (6) when the regulating tube (52) moves, so that the negative pressure pump (4) backwashes the filter chamber (2). The adjusting device (5) is provided with a limiting rod (53) corresponding to the adjusting tube (52), and a locking mechanism (531) is provided on the limiting rod (53). The adjusting tube (52) is provided with a locking tooth (522) corresponding to the locking mechanism (531). The adjusting device (5) further includes a second flexible part (54), on which a locking bracket (55) is provided. The bottom of the adjusting tube (52) is provided with an unlocking part (523) for the locking bracket (55) to pass through. The locking bracket (55) is used to move with the deformation of the second flexible part (54). The locking bracket (55) is used to engage with the locking teeth (522) to lock the adjusting tube (52). The locking bracket (55) is provided with a flexible paddle (551). The flexible paddle (551) is used to contact the locking mechanism (531) and change its tilt state, so that the locking mechanism (531) is disengaged from the locking teeth (522) and unlocked.

2. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The limiting rod (53) has a mounting groove corresponding to the locking mechanism (531), and the locking mechanism (531) has a hinge shaft (532) rotatably connected to the mounting groove at the center. The hinge shaft (532) is provided with an offset spring for offsetting the locking mechanism (531) to one side.

3. The automatic backwashing adjustment device for a ceramic filter according to claim 2, characterized in that: The locking mechanism (531) is provided with abutting teeth (533) for engaging with locking teeth (522). The locking mechanism (531) has a reset piece (534) on the side away from the contact tooth (533) for contacting the flexible paddle (551).

4. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The locking bracket (55) is U-shaped, and one end of the locking bracket (55) extends into the interior of the adjusting abutment tube (52) through the unlocking part (523); The locking bracket (55) extends into the interior of the adjusting tube (52) and has a tapered portion for engaging with the locking teeth (522).

5. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: Both the first flexible part (51) and the second flexible part (54) are made of flexible rubber, and the first flexible part (51) and the second flexible part (54) are hemispherical.

6. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The regulating valve (6) is a two-position four-way valve; The regulating valve (6) is connected to the filter chamber (2) and the liquid storage tank. The valve core of the regulating valve (6) is fixedly connected to the regulating plate (521) to change the passage state of the regulating valve (6) as the regulating plate (521) moves.

7. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The frame (1) is provided with a discharge area (11) and an ultrasonic device is also provided in the frame (1).

8. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The adjusting device (5) is rotatably connected to the filter chamber (2), which includes a hollow rotor and multiple ceramic discs connected to the hollow rotor.

9. The automatic backwashing adjustment device for a ceramic filter according to claim 1, characterized in that: The adjusting tube (52) is sleeved with the limiting rod (53), and the limiting rod (53) is used to restrict the movement direction of the adjusting tube (52).

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