Filtration devices for sewage treatment

Abstract

The present invention provides a filtering device for sewage treatment, comprising a filter box, a first screen, a second screen arranged below the first screen, a driving assembly and a cleaning assembly, wherein the second screen is pivotally connected to the filter box; the cleaning assembly comprises an electric brush and two linear modules connected to both ends of the electric brush, wherein the length direction of the linear module points from the first end of the filter box to the second end of the filter box, and the electric brush abuts against the upper surface of the first screen. In the working state of this embodiment, the first screen can reciprocate between the first end and the second end of the filter box, and at the same time, the second screen can reciprocate. In the cleaning state, the two linear modules drive the electric brush to move from the first end of the filter box toward the second end of the filter box, and the rotation direction of the electric brush causes the particles to accumulate toward the opening.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a filtering device for sewage treatment. Background Art

[0002] In pile foundation construction, drilling mud can form a mud skin on the hole wall to reinforce the hole wall and prevent collapse, while also stabilizing the water level in the hole.

[0003] In addition, the drilling mud can also wash the drill bit, so that the soil and gravel carried on the drill bit are separated from the drill bit. As the drilling work proceeds, the drilling mud will also carry the soil and gravel out of the borehole.

[0004] Whether flushing the drill bit or drilling, sewage mixed with soil and gravel will be produced. This sewage can no longer be reused as drilling mud. If it is directly discharged, it will have adverse effects on the environment. Therefore, the sewage needs to be treated.

[0005] Impurities and pollutants in sewage can be removed by filtering and purifying, and drilling mud can be recycled. In the filtration process, large particles of impurities in sewage are usually filtered through a vibrating screen, which will produce large vibrations and noises during operation. At the same time, the cleaning of the vibrating screen often requires staff to do it, which increases labor costs. Summary of the invention

[0006] The content of the present invention is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of the present disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] Some embodiments of the present invention provide a filtering device for sewage treatment to solve the technical problems mentioned in the above background technology section.

[0008] Some embodiments of the present invention provide a filtering device for sewage treatment, the filtering device comprising a filtering box, a first screen slidably arranged in the filtering box, a second screen arranged below the first screen, a driving assembly connected to the first screen and the second screen, and a cleaning assembly, wherein:

[0009] The top of the filter box is provided with a liquid inlet, the drive assembly is provided to the first end of the filter box, and the second end of the filter box is provided with an opening for collecting filtered particles and liquid respectively;

[0010] The second screen is pivotally connected to the filter box;

[0011] The driving assembly is used to drive the first screen to reciprocate between the first end and the second end of the filter box, and drive the second screen to swing back and forth;

[0012] The cleaning assembly includes an electric brush and two linear modules connected to both ends of the electric brush, the length direction of the linear module points from the first end of the filter box to the second end of the filter box, and the electric brush abuts against the upper surface of the first screen;

[0013] In the working state, the two linear modules drive the electric brush to move from the first end of the filter box toward the second end of the filter box, and the rotation direction of the electric brush makes the particles accumulate toward the opening.

[0014] Optionally, two side plates of the filter box are respectively provided with slide grooves, and the two slide grooves are slidably connected to two sides of the first screen.

[0015] Optionally, two side plates of the filter box are respectively embedded with bearings; a rotating shaft is fixedly provided in the middle of both sides of the second screen, and the two rotating shafts are matched to the inner rings of the two bearings in a one-to-one correspondence.

[0016] Optionally, the drive assembly includes a drive unit, a turntable, a first push-pull rod and a second push-pull rod, the output shaft of the drive unit is connected to the turntable, the first push-pull rod is pivotally connected to one side of the first surface of the turntable, and both ends of the second push-pull rod are pivotally connected to the first push-pull rod and the first screen, respectively.

[0017] Optionally, the first end of the filter box is connected to a first linear bearing, and the second push-pull rod can slidably pass through the first linear bearing.

[0018] Optionally, the driving unit includes a motor and a reducer connected to each other.

[0019] Optionally, the drive assembly also includes a cam bearing, a first drive rod and a second drive rod. The second surface of the turntable is provided with a cam groove, the bearing end of the cam bearing fits into the cam groove, and the connecting end of the cam bearing is fixedly connected to the upper end of the first drive rod; the two ends of the second drive rod are pivotally connected to the lower end of the first drive rod and the second screen.

[0020] Optionally, the driving assembly further comprises a supporting plate fixedly connected to the first end of the filter box for supporting the driving part; the supporting plate is connected to a second linear bearing, and the first driving rod can slide through the second linear bearing.

[0021] Optionally, the two side panels of the filter box are respectively provided with strip holes, and the connecting shafts on both sides of the electric brush pass through the strip holes; the connecting shafts on both sides of the electric brush are respectively connected to the drive motor and the bearing seat, and the drive motor and the bearing seat are respectively connected to the sliders of the linear modules on both sides.

[0022] Optionally, the linear module includes one of the following: a ball screw linear module, a synchronous belt linear module, and a linear motor linear module.

[0023] The above-mentioned embodiments of the present invention have the following beneficial effects: through the filtering device for sewage treatment of the present invention, large particle impurities in sewage can be filtered, and the first screen can be automatically cleaned, thereby reducing the labor intensity.

[0024] Specifically, the first screen is slidably connected in the filter box, and the second screen is pivotally connected in the filter box. Driven by the drive assembly, the first screen can reciprocate between the first end and the second end of the filter box, and at the same time, the second screen can reciprocate. In this way, when sewage enters from the liquid inlet, it will be filtered at the first level under the reciprocating motion of the first screen, which can effectively prevent impurities from accumulating and clogging on the first screen, and improve the patency of the first screen.

[0025] When sewage mixed with impurities enters the second screen, the second screen swings back and forth, so that the sewage and impurities are evenly distributed, thereby improving the filtering efficiency.

[0026] Finally, the linear module can drive the electric brush to move on the surface of the first screen, thereby cleaning the impurities on the surface of the first screen. The rotation direction of the electric brush is set to make the particles accumulate toward the opening of the filter box, which can effectively prevent impurities from entering the filter box and improve the collection efficiency of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of an embodiment of a filtering device for sewage treatment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of an embodiment of a driving assembly of the present invention;

[0030] Figure 3It is a structural schematic diagram of another embodiment of the driving assembly of the present invention;

[0031] Figure 4 It is a structural schematic diagram of an embodiment of the cleaning component of the present invention;

[0032] Figure 5 FIG. 1 is a top view of an embodiment of a cleaning component of the present invention.

[0033] Description of reference numerals:

[0034] 1: filter box; 11: liquid inlet; 12: side plate; 121: slide groove; 122: strip hole; 13: top plate; 14: side plate; 2: first screen; 3: second screen; 31: rotating shaft; 4: driving assembly; 41: driving part; 42: turntable; 421: cam groove; 43: first push-pull rod; 44: second push-pull rod; 45: first linear bearing; 46: support plate; 461: second linear bearing; 47: cam bearing; 48: first driving rod; 49: second driving rod; 51: electric brush; 52: linear module; 53: motor; 54: bearing seat. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] First see Figure 1 , Figure 2 and Figure 3 , Figure 1 It is a structural schematic diagram of an embodiment of a filtering device for sewage treatment of the present invention; Figure 2 It is a structural schematic diagram of an embodiment of a driving assembly of the present invention; Figure 3 FIG. 2 is a schematic diagram of the structure of another embodiment of the drive assembly of the present invention. Figure 1 , Figure 2 and Figure 3 As shown, the filtering device for sewage treatment includes a filtering box 1, a first screen 2, a second screen 3, a driving component 4 and a cleaning component.

[0040] The filter box 1 is composed of a top plate 13, two side plates 12 arranged opposite to each other, and a side plate 14. A liquid inlet 11 is arranged on the top plate 13, and the liquid inlet 11 is connected to the inside of the filter box 1. As an example, the liquid inlet 11 can be surrounded by four baffles, and sewage can enter through the liquid inlet 11. The side plate 14 is arranged at the first end ( Figure 2 The left end of the filter box 1 ( Figure 3 An opening is formed at the right end of the filter element for collecting filtered impurities and liquid respectively.

[0041] The first screen 2 and the second screen 3 are arranged in the filter box 1 at intervals along the vertical direction. The first screen 2 is slidably connected to the two side plates 12 of the filter box 1. Baffles can be arranged on both sides of the first screen 2 and the second screen 3 and on the side facing away from the outlet.

[0042] A transmission belt and a container can be set at the opening to collect impurities and liquids. Those skilled in the art can determine it according to the prior art or common knowledge.

[0043] In an optional implementation of some embodiments, a slide groove 121 may be provided on each of the two side plates 12. In an assembled state, the two slide grooves 121 are slidably connected to both sides of the first screen 2.

[0044] The second screen 3 is pivotally connected to the two side panels 12 of the filter box 1. Figure 4 , Figure 4 FIG. 2 is a schematic diagram of the structure of an embodiment of the cleaning component of the present invention. Figure 4 As shown, a rotating shaft 31 can be fixedly arranged in the middle of the two long sides of the second screen 3. At the same time, bearings are arranged at the corresponding positions of the two side plates 12. The outer ring of the bearing is fixedly connected to the side plate 12, and the bearing can be embedded in the side plate 12. The above two rotating shafts 31 can be matched to the inner rings of the two bearings one by one. In this way, the second screen 3 can rotate around the axis of the rotating shaft 31.

[0045] Next, combine Figure 2 and Figure 4 The drive assembly 4 is described. Figure 2 As shown, the drive assembly 4 is connected to the first screen 2 and the second screen 3, and can be set to the first end of the filter box 1, for simultaneously driving the first screen 2 to reciprocate in the direction from the first end to the second end of the filter box 1 and the second screen 3 to swing back and forth.

[0046] The driving assembly 4 includes a driving part 41, a rotating disk 42, a first push-pull rod 43 and a second push-pull rod 44. The driving part 41 can be fixed to a support plate 46, and the support plate 46 can be connected to the side plate 14. The left end ( Figure 2 The first push-pull rod 43 is pivotally connected to the first surface (the surface facing away from the driving part 41) of the rotating disk 42 (in the direction of the rotating disk 42). The right end of the first push-pull rod 43 is pivotally connected to the left end of the second push-pull rod 44. The right end of the second push-pull rod 44 is pivotally connected to the left end of the first screen 2. A first linear bearing 45 can be provided on the side plate 14, and the second push-pull rod 44 can slidably pass through the first linear bearing 45, thereby limiting the sliding direction of the second push-pull rod 44.

[0047] The driving part 41 may be a motor or a connected motor and a reducer. The transmission shaft of the driving part 41 may be connected to the second surface (the surface facing the driving part 41) of the turntable 42 through a coupling. In order to further stabilize the turntable 42, a bearing bracket may be sleeved on the transmission shaft.

[0048] In order to avoid interference between the driving part 41 and the first push-pull rod 43 , the transmission shaft of the driving part 41 is connected to the second surface of the rotating disk 42 , and the transmission shaft coincides with the axis of the rotating disk 42 .

[0049] In this way, when the driving part 41 drives the rotating disk 42 to rotate, the rotating disk 42 drives the first push-pull rod 43 and the second push-pull rod 44 to slide, thereby enabling the first screen 2 to reciprocate along the sliding groove 121 .

[0050] like Figure 4 As shown, the driving assembly 4 may also include a cam bearing 47, a first driving rod 48, a second driving rod 49 and a second linear bearing 461. The second surface of the turntable 42 is provided with a cam groove 421. The bearing end of the cam bearing 47 is engaged with the cam groove 421. The connecting end of the cam bearing 47 is fixedly connected to the upper end of the first driving rod 48. The second driving rod 49 passes through the side plate 14, and its two ends are pivotally connected to the lower end of the first driving rod 48 and the right end of the second screen 3 respectively. The second linear bearing 461 is fixed to the support plate 46, and the first driving rod 48 can slide through the second linear bearing 461, thereby limiting the sliding direction of the first driving rod 48.

[0051] Furthermore, a telescopic rod may be pivotally connected between the first driving rod 48 and the second driving rod 49 , and the telescopic rod is used to limit the angle between the first driving rod 48 and the second driving rod 49 , thereby improving the reliability of the device.

[0052] In the working state, as the turntable 42 rotates, under the restriction of the second linear bearing 461 and the action of the cam groove 421, the above-mentioned first drive rod 48 can move up and down in the vertical direction, thereby driving the second drive rod 49 to swing, so that the second screen 3 swings back and forth around the axis of the rotating shaft 31.

[0053] That is to say, the driving assembly 4 can realize different screening actions of the first screen 2 and the second screen 3 through only one driving part 41, which not only enriches the screening methods of the filtering device, but also reduces the cost of the device.

[0054] Finally combined Figure 3 and Figure 5 Explain the cleaning components. Figure 5 FIG. 2 is a top view of an embodiment of a cleaning component of the present invention. Figure 3 and Figure 5 As shown, the cleaning assembly includes an electric brush 51, a drive motor 53 and a bearing seat 54. The drive motor 53 is connected to the lower side of the electric brush 51 ( Figure 5 The bearing seat 54 is connected to the upper side of the electric brush 51 ( Figure 5In the working state, the driving motor 53 can drive the electric brush 51 to rotate around its own axis.

[0055] A linear module 52 is disposed on the outer side of each side plate 12, and a horizontal strip hole 122 is also disposed on each side plate 12. In the assembled state, the connecting shafts on both sides of the electric brush 51 pass through the two strip holes 122, and the driving motor 53 and the bearing seat 54 are respectively connected to the sliders of the linear modules 52 on both sides.

[0056] The electric brush 51 can be engaged with the upper surface of the first screen 2. In the working state, when the slider of the linear module 52 moves, it can drive the electric brush 51 to move horizontally. Figure 3 As shown, the rotation direction of the electric brush 51 can be counterclockwise. In this way, the impurities on the first screen 2 can be swept to the right end of the filter box 1 by the electric brush 51, which is convenient for the centralized collection of impurities and prevents the impurities from entering the inside of the filter box 1.

[0057] In addition, in the state of filtering sewage, such as Figure 3 As shown, the electric brush 51 is at the left end of the first screen 2. When the first screen 2 slides back and forth, a gap will be generated between the left end of the first screen 2 and the side plate 14. The setting of the electric brush 51 can prevent sewage from entering the second screen 3 through the gap, thereby improving the reliability of the device.

[0058] The sewage generated during the drilling process is usually collected in a sewage collection pool set up at the drilling site, and then transported to the filtration device for filtration through a sewage pump and a pipeline. A flow meter can be set on the above pipeline to monitor the flow of sewage. As an example, the above flow meter can be an electromagnetic flow meter.

[0059] Furthermore, the filtering device may also include a controller, which is in communication with the flow meter and the driving part in the driving assembly. The driving part may be a motor with a frequency conversion function. The controller adjusts the output power of the driving part according to the change of the flow rate, thereby changing the reciprocating frequency of the first screen and the swing frequency of the second screen.

[0060] The controller may include an artificial intelligence chip. The output power of the driving unit may be obtained by analyzing the flow value collected by the flow meter by the artificial intelligence chip, wherein the machine learning model carried by the artificial intelligence chip is obtained by training a training sample set. The training sample set includes a sample flow value and a sample output power, and the machine learning model is obtained by training with the sample flow value as input and the sample output power as the expected output.

[0061] As an example, the machine learning model can be obtained by performing the following training steps based on the training sample set: inputting the sample flow values ​​of at least one training sample in the training sample set into the initial machine learning model to obtain the corresponding output power; comparing the output power corresponding to each sample flow value in the at least one training sample with the corresponding sample output power; determining the prediction accuracy of the initial machine learning model according to the comparison result; determining whether the prediction accuracy is greater than the preset accuracy threshold; in response to determining that the accuracy is greater than the preset accuracy threshold, the initial machine learning model is used as the trained machine learning model; in response to determining that the accuracy is not greater than the preset accuracy threshold, adjusting the parameters of the initial machine learning model, and using unused training samples to form a training sample set, using the adjusted initial machine learning model as the initial machine learning model, and performing the above training steps again. It can be understood that after the above training, the machine learning model can be used for the correspondence between flow values ​​and output power. The machine learning model mentioned above can be a convolutional neural network model.

[0062] As an example, the machine learning model may include a flow value and a correspondence table. The correspondence table may be a correspondence table based on a large number of correspondences between flow values ​​and output powers by a person skilled in the art. In this way, the flow value is compared with multiple flow values ​​in the correspondence table in sequence. If a flow value in the correspondence table is the same or similar to the flow value, the output power corresponding to the flow value in the correspondence table is used as the output power indicated by the flow value.

[0063] As another example, the above-mentioned initial machine learning model can be an untrained deep learning model or an untrained deep learning model, and each layer of the initial deep learning model can be set with initial parameters, and the parameters can be continuously adjusted during the training process of the deep learning model. The initial deep learning model can be various types of untrained or untrained artificial neural networks or a model obtained by combining multiple untrained or untrained artificial neural networks. For example, the initial deep learning model can be an untrained convolutional neural network, or an untrained recurrent neural network, or a model obtained by combining an untrained convolutional neural network, an untrained recurrent neural network, and an untrained fully connected layer. In this way, the flow value can be input from the input side of the deep learning model, processed by the parameters of each layer in the deep learning model in turn, and output from the output side of the deep learning model. The information output by the output side is the output power.

[0064] In this way, the artificial intelligence chip can process the flow value, and then better adjust the output power, adjust the frequency of the reciprocating motion of the first screen and the second screen, and adapt the filtering intensity. This can improve the flexibility and automation performance of the device, better complete the filtering work, and reduce the power consumption of the device, saving energy.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A filtering device for sewage treatment, characterized in that: The invention comprises a filter box, a first screen slidably arranged in the filter box, a second screen arranged below the first screen, a driving assembly connected to the first screen and the second screen, and a cleaning assembly, wherein: The top of the filter box is provided with a liquid inlet, the drive assembly is provided to the first end of the filter box, and the second end of the filter box is provided with an opening for collecting filtered particles and liquid respectively; The second screen is pivotally connected to the filter box; The driving assembly is used to drive the first screen to reciprocate between the first end and the second end of the filter box, and drive the second screen to swing back and forth; The two side plates of the filter box are respectively embedded with bearings; a rotating shaft is fixed in the middle of both sides of the second screen, and the two rotating shafts are matched to the inner rings of the two bearings in a one-to-one correspondence; The cleaning assembly includes an electric brush and two linear modules connected to both ends of the electric brush, the length direction of the linear module points from the first end of the filter box to the second end of the filter box, and the electric brush abuts against the upper surface of the first screen; In the working state, the two linear modules drive the electric brush to move from the first end of the filter box toward the second end of the filter box, and the rotation direction of the electric brush makes the particles accumulate toward the opening; The driving assembly comprises a driving part, a rotating disk, a first push-pull rod and a second push-pull rod, the output shaft of the driving part is connected to the rotating disk, the first push-pull rod is pivotally connected to one side of the first surface of the rotating disk, and both ends of the second push-pull rod are pivotally connected to the first push-pull rod and the first screen respectively; The first end of the filter box is connected to a first linear bearing, and the second push-pull rod can slidably pass through the first linear bearing; The driving assembly further comprises a cam bearing, a first driving rod and a second driving rod. A cam groove is provided on the second surface of the rotating disk. The bearing end of the cam bearing fits into the cam groove. The connecting end of the cam bearing is fixedly connected to the upper end of the first driving rod. The two ends of the second driving rod are pivotally connected to the lower end of the first driving rod and the second screen. A telescopic rod is also pivotally connected between the first driving rod and the second driving rod, and the telescopic rod is used to limit the angle between the first driving rod and the second driving rod. The driving assembly further comprises a support plate fixedly connected to the first end of the filter box, and used for supporting the driving part; the support plate is connected to a second linear bearing, and the first driving rod can slide through the second linear bearing; The sewage is transported to the filtering device through a sewage pump and a pipeline, and a flow meter is provided on the pipeline; The filtering device further includes a controller that is communicatively connected to the flow meter and the driving unit, the controller includes an artificial intelligence chip, and the output power of the driving unit is obtained by analyzing the flow value collected by the flow meter through the artificial intelligence chip, wherein the machine learning model carried by the artificial intelligence chip is obtained by training through a training sample set; The training sample set includes sample flow values ​​and sample output powers, and the machine learning model is trained using the sample flow values ​​as input and the sample output powers as expected outputs.

2. The filtering device for sewage treatment according to claim 1, characterized in that: The two side plates of the filter box are respectively provided with slide grooves, and the two slide grooves are slidably connected to the two sides of the first screen.

3. The filtering device for sewage treatment according to claim 1, characterized in that: The driving part includes a motor and a reducer connected to each other.

4. The filtering device for sewage treatment according to claim 1, characterized in that: The two side plates of the filter box are respectively provided with strip holes, and the connecting shafts on both sides of the electric brush pass through the strip holes; the connecting shafts on both sides of the electric brush are respectively connected to the drive motor and the bearing seat, and the drive motor and the bearing seat are respectively connected to the sliders of the linear modules on both sides.

5. The filtering device for sewage treatment according to claim 1, characterized in that: The linear module includes one of the following: a ball screw linear module, a synchronous belt linear module, and a linear motor linear module.

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