Full-automatic self-brushing type backwashing filter

Abstract

The utility model discloses a full-automatic self-brushing type backwashing filter which comprises a main barrel, an auxiliary barrel, a water pump and a filter material assembly, a containing cavity is formed in the main barrel, a water inlet, a discharge port and a water outlet are formed in the main barrel, the water inlet is communicated with the containing cavity, and the discharge port is communicated with the bottom of the containing cavity; a recovery unit is arranged in the auxiliary barrel, and the auxiliary barrel is communicated with the discharge port; the output end of the water pump is communicated with the water inlet; the filter material assembly comprises a filter material unit, the filter material unit is rotatably arranged in the containing cavity, the filter material unit is driven by a driving mechanism to rotate, the filter material unit is provided with an output port, the output port is communicated with the water outlet, a brush for brushing the outer surface of the filter material unit is arranged in the containing cavity, and the brush abuts against the outer surface of the filter material unit.

Description

Technical Field

[0001] The utility model relates to the field of filter technology, in particular to a full-automatic self-brushing backwashing filter. Background Art

[0002] At present, traditional filters on the market (including but not limited to those used in the electroplating industry) rely on manual removal of filter materials, manual cleaning of the filter materials and then installing them back into the filter barrel, or even direct replacement of new filter materials. This wastes water, manpower, and filter material resources, and the waste generated by the filter materials will also cause secondary pollution to the environment.

[0003] Although there are backwashing filters on the market, they have no way to intelligently identify pressure, time, and flow values, and can only be cleaned semi-automatically. A large amount of tap water is still needed to backwash the filter material. Direct discharge of the cleaned water will form a pollution source, wasting water resources, and even requires repeated cleaning in several stages, wasting time and resources. Moreover, this cannot meet the needs of the production process. Moreover, the backwashing effect of the existing backwashing filters on the market is not good, mainly because the structural design of the filter material (filter medium) in the main barrel is poor, and the backwashing effect cannot be achieved. It cannot be used for carbon treatment in the electroplating industry and cannot meet the needs of the production process.

[0004] Therefore, it is necessary to improve the practicality of the current backwash filter. Utility Model Content

[0005] In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a fully automatic self-brushing backwashing filter, which can effectively solve the problem of poor backwashing effect of the prior backwashing filter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fully automatic self-brushing backwashing filter comprises a main barrel, a sub-barrel, a water pump and a filter material assembly; the main barrel is provided with a accommodating chamber, and is provided with a water inlet, a discharge port and a water outlet, the water inlet is communicated with the accommodating chamber, and the discharge port is communicated with the bottom of the accommodating chamber; the sub-barrel is provided with a recovery unit, and the sub-barrel is communicated with the discharge port; the output end of the water pump is communicated with the water inlet; the filter material assembly comprises a filter material unit, which is rotatably arranged in the accommodating chamber, the filter material unit is driven to rotate by a driving mechanism, the filter material unit has an output port, and the output port is communicated with the water outlet, and a brush for brushing the outer surface of the filter material unit is provided in the accommodating chamber, and the brush abuts against the outer surface of the filter material unit.

[0008] Preferably, the filter material unit includes a central column and a plurality of sewn-wrapped filter media; the central column is a hollow structure, the central column is rotatably disposed in the accommodating cavity, the aforementioned output port is located on one end surface of the central column and is connected to the interior of the central column, a plurality of input ports are provided on the outer surface of the central column, the plurality of input ports are all connected to the interior of the central column, and the plurality of sewn-wrapped filter media are spaced apart on the central column and cover each input port.

[0009] Preferably, there are a plurality of brushes, which are respectively located beside the plurality of seam-wrapped filter media, and the bristles of each brush abut against the outer surface of one end of the plurality of seam-wrapped filter media.

[0010] Preferably, the brush comprises a sleeve portion and a main body portion, the sleeve portion has a sleeve hole, the sleeve hole is sleeved on the central column, the upper end of the main body portion is connected to the sleeve portion, a baffle is provided in the accommodating cavity, and the lower end of the main body portion abuts against the baffle.

[0011] Preferably, the filter material unit is suspended laterally or inserted laterally in the accommodating cavity.

[0012] Preferably, the filter material assembly consists of a plurality of filter material units, and the plurality of filter material units are connected in series or in parallel.

[0013] Preferably, a pressure sensor is provided on the main barrel, and the detection end of the pressure sensor extends into the accommodating cavity. The pressure sensor is connected to a PLC controller, and the PLC controller is electrically connected to the water pump and the driving mechanism.

[0014] Preferably, the driving mechanism is a motor driving mechanism.

[0015] Preferably, an air pressure valve is provided at one end of the main barrel, and an exhaust valve is provided at the other end of the main barrel, and the exhaust valve and the air pressure valve are respectively connected to the two ends of the accommodating cavity.

[0016] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0017] 1. By adopting the filter material assembly and cooperating with each central column to be provided with each seam-wrapped filter medium, during normal filtration, the seam-wrapped filter medium will be attached to the filter disc, and the medicine will flow through the filter medium through the hollow part of the filter disc (at this time, the filter material in the hollow part is in the shape of a pit), and the impurities (dirt) will be concentrated and intercepted on the surface of the filter material, mostly attached to the concave part of the filter material. When the impurities in the hollow part accumulate too much and block the medicine from passing through the hollow part, the pressure in the main barrel will rise when the water intake remains unchanged, and when it rises to the set value, the self-brushing backwashing function will be started; during brushing, the medicine will start the driving mechanism in the barrel to rotate the filter material unit for brushing, and the brushing will cause the impurities attached to the outer surface of the seam-wrapped filter material to peel off and fall off, and then the impurities are pressed into the auxiliary barrel with the medicine by air pressure and enter the recovery unit to flow back into the medicine tank, thereby realizing a good self-brushing backwashing function, and realizing continuous filtration and maintenance of the cleanliness of the medicine without replacing the filter material.

[0018] Second, by cooperating with the pressure sensor and using the pressure sensor to detect the pressure of the liquid in the main barrel, it can make a judgment on whether to perform brushing based on the output liquid pressure in the main barrel, and it is controlled by the PLC controller. It can intelligently identify when the set pressure value, time value or flow value is reached during the operation of the filter machine, and automatically start the brushing mode. After the automatic brushing is completed, it will automatically switch back to the normal filtration mode. No manual control is required throughout the process. The original liquid (the liquid in the tank) is used for brushing, and water can also be used for brushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0020] Figure 2 This is a flow path diagram of the liquid during normal filtration in the preferred embodiment of the utility model;

[0021] Figure 3 This is a flow path diagram of the liquid during backwashing in a preferred embodiment of the utility model;

[0022] Figure 4 This is a water flow path diagram during backwashing with tap water in a preferred embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the filter material unit in a preferred embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the changes of the filter material unit during normal filtration in a preferred embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the changes of the filter material unit during brushing in a preferred embodiment of the utility model;

[0026] Figure 8It is a schematic diagram of the changes of the brush in the preferred embodiment of the utility model.

[0027] Description of the accompanying drawings:

[0028] 10. Main barrel 11. Accommodation chamber

[0029] 12. Water inlet 13. Discharge outlet

[0030] 14. Water outlet 15. Baffle

[0031] 20. Auxiliary barrel 21. Recovery unit

[0032] 22. Brush the water outlet 30. Water pump

[0033] 40. Filter material assembly 41. Filter material unit

[0034] 411, center column 412, sewn bag filter medium

[0035] 401, output port 402, input port

[0036] 50. Driving mechanism 60. Brush

[0037] 61. Fitting part 62. Main body

[0038] 601, sleeve hole 71, first pipeline

[0039] 72. Drain valve 73. Second pipeline

[0040] 74. Water filling valve 75. Filter water outlet valve

[0041] 76. Third pipeline 77. Backwash outlet valve

[0042] 78. Fourth pipeline 79. Fifth pipeline

[0043] 81. Filter water inlet valve 82. Pressure sensor

[0044] 83. PLC controller 84. Air pressure valve

[0045] 85. Exhaust valve DETAILED DESCRIPTION

[0046] Please refer to Figures 1 to 8 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a main barrel 10, a sub-barrel 20, a water pump 30 and a filter material assembly 40.

[0047] The main barrel 10 has a containing chamber 11, and is provided with a water inlet 12, a discharge port 13 and a water outlet 14. The water inlet 12 is in communication with the containing chamber 11, and the discharge port 13 is in communication with the bottom of the containing chamber 11. The positions of the water inlet 12 and the water outlet 14 are not limited. In this embodiment, the main barrel 10 is arranged horizontally, and the water inlet 12 and the discharge port 13 are respectively located at the bottom of both ends of the main barrel 10, and the water outlet 14 is located on one end surface of the main barrel 10. The discharge port 12 is connected to a first pipe 71, and a sewage valve 72 is provided on the first pipe 71. The water outlet 14 is connected to a second pipe 73, and a water filling valve 74 and a filtered water outlet valve 75 are respectively provided at both ends of the second pipe 73.

[0048] The auxiliary barrel 20 is provided with a recovery unit 21, and the auxiliary barrel 20 is connected to the discharge port 13. The recovery unit 21 has a filtering effect and can achieve solid-liquid separation. In this embodiment, there are two auxiliary barrels 20, and both auxiliary barrels are connected to a third pipe 76. The two auxiliary barrels 20 are connected to the discharge port 13 through the third pipe 76, and a backwash outlet valve 77 is provided on the third pipe 76. In addition, the auxiliary barrel 20 has a brushing outlet 22.

[0049] The output end of the water pump 30 is connected to the water inlet 12. In this embodiment, the output end of the water pump 30 is connected to the water inlet 12 through a fourth pipe 78, and the input end of the water pump 30 is connected to a fifth pipe 79, and a filtered water inlet valve 81 is provided at the end of the fifth pipe 79.

[0050] The filter material assembly 40 includes a filter material unit 41, which is rotatably disposed in the accommodating chamber 11. The filter material unit 41 is driven to rotate by a driving mechanism 50, which is a motor driving mechanism. The filter material unit 41 has an output port 401, which is connected to the water outlet 14, and a brush 60 for brushing the outer surface of the filter material unit 41 is disposed in the accommodating chamber 11, and the brush 60 is against the outer surface of the filter material unit 41. The filter material assembly 30 is composed of a plurality of filter material units 41, and the plurality of filter material units 41 are connected in series or in parallel to greatly increase the filtering area of ​​the tank liquid in the limited space of the main barrel 10, so as to better meet the flow problem. In the present embodiment, the filter material assembly 40 is composed of 20 filter material units 41 arranged in parallel, which is not limited. The filter material units 41 are suspended horizontally or inserted horizontally in the accommodating chamber 11, and the larger the number, the larger the filtering area, which is not limited. Specifically:

[0051] The filter material unit 41 includes a central column 411 and a plurality of slit-shaped filter media 412; the central column 411 is a hollow structure, and the central column 411 is rotatably disposed in the accommodating chamber 11; the aforementioned output port 401 is located on one end surface of the central column 411 and communicates with the interior of the central column 411; a plurality of input ports 402 are provided on the outer surface of the central column 411, and the plurality of input ports 402 are all communicated with the interior of the central column 411; the plurality of slit-shaped filter media 412 are disposed at intervals on the central column 411 and cover each input port 402. The plurality of brushes 60 are respectively disposed beside the plurality of slit-shaped filter media 412, and the bristles of each brush 60 abut against the outer surface of one end of the plurality of slit-shaped filter media 412. The brush 60 includes a sleeve portion 61 and a main body 62. The sleeve portion 61 has a sleeve hole 601, and the sleeve hole 601 is sleeved on the central column 411. The upper end of the main body 62 is connected to the sleeve portion 61. A blocking bar 15 is provided in the accommodating cavity 11. The lower end of the main body 62 abuts against the blocking bar 15 to fix the brush 60 and prevent the brush 60 from rotating.

[0052] The main barrel 10 is provided with a pressure sensor 82, the detection end of which extends into the accommodating chamber 11, and the pressure sensor 82 is connected to a PLC controller 83, which is electrically connected to the water pump 30 and the driving mechanism 50. The pressure sensor 82 is used to detect the liquid pressure in the filter main barrel 10, and the liquid flow rate is used to determine whether to perform brushing according to the output liquid flow rate and the liquid pressure in the main barrel 10. An air pressure valve 84 is provided at one end of the main barrel 10, and an exhaust valve 85 is provided at the other end of the main barrel 10. The exhaust valve 85 and the air pressure valve 84 are respectively connected to the two ends of the accommodating chamber 11.

[0053] The working principle of this embodiment is described in detail as follows:

[0054] During normal filtering, such as Figure 2 As shown, the filtered water inlet valve 81, the filtered water outlet valve 75 and the exhaust valve 85 are opened, and the water pump 30 is started. Under the action of the water pump 30, the liquid enters the accommodating chamber 11 of the main barrel 10 from the water inlet 12, and the liquid passes through all the filter material units 41 and then flows out from the water outlet 14. At this time, Figure 6 As shown, the sewn bag-shaped filter medium 412 is attached to the filter plate, and impurities in the liquid are intercepted on the surface by each filter material unit 41 , and the filtered liquid flows out from the water outlet 14 .

[0055] During the filtration process, Figure 3As shown, the pressure sensor 82 detects the liquid pressure in the accommodating chamber 11 of the main barrel 10 in real time. When the liquid pressure increases to a set value, it indicates that the filter material assembly 40 is seriously blocked and needs to be backwashed. At this time, the PLC controller 83 automatically starts the self-brushing backwashing function, and the PLC controller 83 recognizes and controls the closure of the filter water inlet valve 81 and the filter water outlet valve 75, and then starts the driving mechanism 50, and the driving mechanism 50 drives the filter material unit 41 to brush, and the brush 60 brushes each piece. The hollow part of the filter material unit 41 is then brushed out from the outside through the sewn bag-like filter medium 412. At this time, the sewn bag-like filter medium 412 will be brushed out from the outside, so that the impurities attached to the outer surface of the sewn bag-like filter medium 412 will be peeled off and fall off. Then, air pressure is input through the air pressure valve 84, so that the impurities flow into the recovery unit 21 of the auxiliary barrel 20 with the liquid. The impurities are then intercepted by the recovery unit 21, and the liquid passes through the recovery unit 21 and is output from the brushing outlet 22 and flows back into the liquid tank, thereby realizing the self-brushing backwashing function.

[0056] The design emphasis of the utility model is as follows: firstly, by adopting a filter material assembly and cooperating with each central column to be sleeved with each seam-wrapped filter medium, during normal filtration, the seam-wrapped filter medium will be attached to the filter disc, and the medicine liquid will flow through the filter medium through the hollow position of the filter disc (at this time, the filter material in the hollow position is in a pit shape), and the impurities (dirt) will be concentrated and intercepted on the surface of the filter material, mostly attached to the concave part of the filter material, when the impurities in the hollow position accumulate too much and block the medicine liquid from passing through the hollow position, under the condition of unchanged water intake, the pressure in the main barrel will rise, and when it rises to the set value, the self-brushing backwashing function will be started; during brushing, the medicine liquid will start the driving mechanism in the barrel to rotate the filter material unit for brushing, and the brushing will cause the impurities attached to the outer surface of the seam-wrapped filter material to be peeled off and fall off, and then the impurities are pressed into the auxiliary barrel by air pressure with the medicine liquid, enter the recovery unit and flow back to the medicine water tank, thereby realizing a good self-brushing backwashing function, and realizing continuous filtration and maintenance of the cleanliness of the medicine water without changing the filter material. Secondly, by cooperating with a pressure sensor and using the pressure sensor to detect the pressure of the liquid in the main barrel, a judgment is made as to whether to perform brushing based on the output liquid pressure in the main barrel, and controlled by a PLC controller. When the filter is running, it can intelligently identify when the set pressure value, time value or flow value is reached, and automatically start the brushing mode. After the automatic brushing is completed, it will automatically switch back to the normal filtering mode. No manual control is required throughout the process. The original liquid (the liquid in the tank) is used for brushing, and water can also be used for brushing.

[0057] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A fully automatic self-brushing backwashing filter, characterized in that: It includes a main barrel, a sub-barrel, a water pump and a filter material assembly; the main barrel has a accommodating chamber, and is provided with a water inlet, a discharge port and a water outlet, the water inlet is communicated with the accommodating chamber, and the discharge port is communicated with the bottom of the accommodating chamber; the sub-barrel is provided with a recovery unit, and the sub-barrel is communicated with the discharge port; the output end of the water pump is communicated with the water inlet; the filter material assembly includes a filter material unit, which is rotatably arranged in the accommodating chamber, the filter material unit is driven to rotate by a driving mechanism, the filter material unit has an output port, and the output port is communicated with the water outlet, and a brush for brushing the outer surface of the filter material unit is provided in the accommodating chamber, and the brush is against the outer surface of the filter material unit.

2. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: The filter material unit includes a central column and a plurality of sewn-wrapped filter media; the central column is a hollow structure, and the central column is rotatably arranged in the accommodating cavity, the aforementioned output port is located on one end surface of the central column and is connected to the interior of the central column, and a plurality of input ports are provided on the outer surface of the central column, and the plurality of sewn-wrapped filter media are arranged at intervals on the central column and cover each input port.

3. The fully automatic self-brushing backwashing filter according to claim 2, characterized in that: There are multiple brushes, which are respectively located beside multiple seam-wrapped filter media, and the bristles of each brush are against the outer surface of one end of the multiple seam-wrapped filter media.

4. The fully automatic self-brushing backwashing filter according to claim 3, characterized in that: The brush comprises a sleeve part and a main body, the sleeve part is provided with a sleeve hole, the sleeve hole is sleeved on the central column, the upper end of the main body is connected with the sleeve part, a baffle is arranged in the accommodating cavity, and the lower end of the main body abuts against the baffle.

5. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: The filter material unit is suspended transversely or inserted transversely in the accommodating cavity.

6. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: The filter material assembly is composed of a plurality of filter material units, and the plurality of filter material units are connected in series or in parallel.

7. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: The main barrel is provided with a pressure sensor, the detection end of which extends into the accommodating cavity. The pressure sensor is connected to a PLC controller, and the PLC controller is electrically connected to the water pump and the driving mechanism.

8. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: The driving mechanism is a motor driving mechanism.

9. The fully automatic self-brushing backwashing filter according to claim 1, characterized in that: One end of the main barrel is provided with an air pressure valve, and the other end of the main barrel is provided with an exhaust valve, and the exhaust valve and the air pressure valve are respectively communicated with the two ends of the accommodating cavity.

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