A sewage filter with which the filter material is not easily hardened

Abstract

The utility model relates to industrial wastewater treatment field, concretely relates to a sewage filter that filter material is not easy to be cemented, including jar body and agitating unit, jar body is divided into water inlet area, filter area and water outlet area from top to bottom in proper order, the inside of filter area is equipped with first filler layer and second filler layer, is equipped with filter plate, through -hole, first multifunctional mouth and second multifunctional mouth on jar body, and agitating unit includes speed reducer motor, rotating shaft and tooth harrow. Through the setting agitating unit, speed reducer motor drives rotating shaft rotation, rotating shaft drives the rotation of the tooth harrow connected at the bottom, and the tooth harrow disturbs first filler layer, effectively disperses the cementation in first filler layer, and keeps good filtering performance. Through the setting first multifunctional mouth, second multifunctional mouth and filter head, realize the flow of water flow in jar body, to realize the basic wastewater filtration function and forward cleaning and backwashing. Solve the problem that filter material is easy to be cemented in traditional filter, improve the sewage filtration efficiency, ensure that filter is long -term stable operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to a wastewater filter whose filter media is not prone to caking. Background Technology

[0002] With the acceleration of urbanization and the continuous development of industrial production, wastewater treatment has become a crucial link in environmental protection and water resource recycling. Wastewater filters, as key equipment in wastewater treatment systems, directly affect treatment efficiency and effluent quality. However, traditional wastewater filters often face the problem of filter media caking during use. This not only reduces filtration efficiency and increases operating costs but may also lead to system blockage, affecting the stability of the entire wastewater treatment process.

[0003] Therefore, there is an urgent need for a wastewater filter whose filter media is not prone to caking. Utility Model Content

[0004] To address the problem of filter media caking that traditional wastewater filters often face during use.

[0005] This utility model provides a sewage filter with filter media that is not prone to caking, including a tank and a stirring device. The tank is divided into an inlet zone, a filtration zone, and an outlet zone from top to bottom. A filter plate is provided on the tank, located between the filtration zone and the outlet zone. Filter heads are provided on the filter plate. A through hole is provided at the center of the top of the tank. A first multi-functional port is provided at the inlet zone of the tank, and a second multi-functional port is provided at the outlet zone. The interior of the filtration zone is provided with a first packing layer with a lower density and a second packing layer with a higher density from top to bottom. The stirring device includes a geared motor, a rotating shaft, and a rake. The output shaft of the geared motor is connected to the top of the rotating shaft. The rotating shaft passes through the through hole, and the bottom of the rotating shaft is connected to the rake. The rake is vertically inserted into the first packing layer.

[0006] Preferably, the first filler layer is a rigid plastic ball filler layer, the second filler layer is a ceramic granule filler layer, and the thickness of the first filler layer is greater than the thickness of the second filler layer.

[0007] Preferably, a handwheel is also provided on the top of the rotating shaft, which is used to manually drive the rotating shaft to rotate.

[0008] Preferably, the side wall of the tank is provided with a first inspection port, which is located below the filter plate and is used for a person to put their hand into the tank. The top of the tank is provided with a second inspection port, which is used for a person to enter the tank. The first inspection port and the second inspection port are respectively provided with a first sealing cover and a second sealing cover.

[0009] Preferably, a ladder is provided on the outside of the tank, with one end of the ladder connected to the second inspection port.

[0010] Preferably, the first multi-functional port is equipped with a filter screen.

[0011] Preferably, a water inlet pipe is connected to the first multi-functional port, and a first ball valve is provided on the water inlet pipe; a backflush pipe is provided on the second multi-functional port, and a second ball valve is provided on the backflush pipe.

[0012] Preferably, a wastewater filter with filter media that is not prone to caking further includes a programmable controller, and both the first ball valve and the second ball valve are electric valves, and both the first ball valve and the second ball valve are electrically connected to the programmable controller.

[0013] Preferably, a wastewater filter with filter media that is not prone to caking also includes a vibrator, which is installed on the outside of the tank and at the same horizontal level as the filter layer, and the vibrator is electrically connected to a programmable controller.

[0014] The beneficial effects of this invention are reflected in the following aspects: By setting up a first and second packing layer to filter wastewater, and by incorporating a stirring device, a geared motor drives a rotating shaft to rotate, which in turn drives a toothed rake connected to the bottom to rotate. The toothed rake agitates the first packing layer, effectively breaking up any caking and maintaining good filtration performance. The inclusion of a first multi-functional port, a second multi-functional port, and a filter head allows water to flow through the tank, achieving basic wastewater filtration as well as forward and reverse rinsing. This solves the problem of easy caking of filter media in traditional filters, improves wastewater filtration efficiency, and ensures long-term stable operation of the filter. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a wastewater filter whose filter media is not prone to caking, provided by this utility model.

[0016] In the diagram: 1-Tank; 11-Inlet area; 111-Filter plate; 112-Filter head; 113-Through hole; 114-First multi-functional port; 115-Filter screen; 116-Inlet pipe; 117-First ball valve; 12-Filtration zone; 121-First packing layer; 122-Second packing layer; 13-Outlet area; 131-Second multi-functional port; 132-Backflush pipe; 133-Second ball valve; 14-First inspection port; 141-First sealing cover; 15-Second inspection port; 151-Second sealing cover; 16-Vibrator; 2-Agitator; 21-Gear motor; 22-Rotating shaft; 23-Rake; 24-Handwheel; 3-Programmable controller. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Reference Figure 1 A wastewater filter with non-caking filter media includes a tank 1 and a stirring device 2. The tank 1 is divided into an inlet zone 11, a filtration zone 12 and an outlet zone 13 from top to bottom. A filter plate 111 is provided on the tank 1, located between the filtration zone 12 and the outlet zone 13. A filter head 112 is provided on the filter plate 111. A through hole 113 is provided at the center of the top of the tank 1. A first multi-functional port 114 is provided at the inlet zone 11 of the tank 1, and a second multi-functional port 131 is provided at the outlet zone 13 of the tank 1. The interior of the filtration zone 12 is provided with a first packing layer 121 with a lower density and a second packing layer 122 with a higher density from top to bottom. The stirring device 2 includes a geared motor 21, a rotating shaft 22 and a toothed rake 23. The output shaft of the geared motor 21 is connected to the top of the rotating shaft 22. The rotating shaft 22 passes through the through hole 113 and is connected to the bottom of the rotating shaft 22 and the toothed rake 23. The toothed rake 23 is vertically inserted into the first packing layer 121.

[0019] Wastewater is filtered by setting up a first packing layer 121 and a second packing layer 122. A stirring device 2 and a reduction motor 21 drive a rotating shaft 22 to rotate. The rotating shaft 22 drives a toothed rake 23 connected to the bottom to rotate, disturbing the first packing layer 121 and effectively breaking up any caking, thus maintaining good filtration performance. A first multi-functional port 114, a second multi-functional port 131, and a filter head 112 are provided to allow water flow within the tank 1, achieving basic wastewater filtration as well as forward and reverse cleaning. This solves the problem of easy caking of filter media in traditional filters, improves wastewater filtration efficiency, and ensures long-term stable operation of the filter.

[0020] The first multi-functional port 114 is used for wastewater filtration inlet, forward cleaning inlet and backwash outlet, and the second multi-functional port 131 is used for wastewater filtration outlet, forward cleaning outlet and backwash inlet.

[0021] During wastewater filtration, wastewater enters tank 1 through the first multi-functional port 114 and is filtered successively by the first packing layer 121 and the second packing layer 122, which traps suspended particles in the wastewater. The filtered water then flows through the filter head 112 to the second multi-functional port 131 for discharge. Since the first packing layer 121 filters the wastewater first and has the largest interception capacity, it is most prone to caking.

[0022] During backwashing, a large volume of cleaning water enters the tank 1 through the second multi-functional port 131, and then enters the filtration zone 12 through the filter head 112. The first packing layer 121 and the second packing layer 122 tumble and collide with each other under the impact of the upward high-speed water flow, causing the suspended particles trapped on the surface of the packing to detach from the packing and be carried away by the water. The cleaning water is discharged from the first multi-functional port 114 after passing through the filtration zone 12.

[0023] During forward cleaning, a large amount of cleaning water enters the tank 1 from the first multi-functional port 114, impacting the first packing layer 121. In conjunction with the geared motor 21 driving the rotating shaft 22 and the toothed rake 23, the surface of the first packing layer 121 is directly stirred, breaking up the hardened first packing layer 121 and restoring its filtration function. The cleaned water flows through the filter head 112 to the second multi-functional port 131 for discharge.

[0024] In some embodiments, the first filler layer 121 is a rigid plastic ball filler layer, the second filler layer 122 is a ceramsite filler layer, and the thickness of the first filler layer 121 is greater than the thickness of the second filler layer 122.

[0025] Using ceramsite and rigid plastic balls as fillers, the surface is smooth, making it difficult for pollutants trapped during filtration to adhere to the surface. This results in a large interception capacity and good backwashing effect, significantly reducing filter media caking. The thicker first filler layer 121 provides ample contact space to trap suspended particles; while the relatively thinner, denser second filler layer 122 separates the first filler layer 121 from the filter head 112, preventing the first filler layer 121 from entering the effluent zone 13 through the filter head 112, while also serving to filter suspended particles to a certain extent.

[0026] In some embodiments, a handwheel 24 is also provided on the top of the rotating shaft 22, which is used to manually drive the rotating shaft 22 to rotate.

[0027] By setting a handwheel 24, it is easy for a person to turn the handwheel 24, which in turn drives the rotating shaft 22 and the toothed rake 23. Even in the event of a power outage or a failure of the reduction motor 21, the toothed rake 23 can still break up the compacted first packing layer 121.

[0028] In some embodiments, the side wall of the tank 1 is provided with a first inspection port 14, which is located below the filter plate 111. The first inspection port 14 is used for a person to put their hand into the tank 1. The top of the tank 1 is provided with a second inspection port 15, which is used for a person to enter the tank 1. The first inspection port 14 and the second inspection port 15 are respectively provided with a first sealing cover 141 and a second sealing cover 151.

[0029] Personnel can access the area below the filter plate 111 through the first inspection port 14 to replace the filter head 112; they can also enter the tank 1 through the second inspection port 15 to replace or clean the packing material. The tank 1 is kept sealed when not in use by providing a first sealing cover 141 and a second sealing cover 151.

[0030] Preferably, a ladder is provided on the outside of the tank body 1, and one end of the ladder is connected to the second inspection port 15.

[0031] By installing ladders, a convenient passage is provided for personnel, ensuring a safer maintenance process, shortening the time required for personnel to enter tank 1, and improving the efficiency of maintenance and operation.

[0032] In some embodiments, the first multi-function port 114 is provided with a filter 115.

[0033] The filter screen 115 is designed to prevent the filter media from being lost when the packing material of the first packing layer 121 enters the first multi-functional port 114 during backwashing or agitation by the toothed rake 23.

[0034] In some embodiments, a water inlet pipe 116 is connected to the first multi-function port 114, and a first ball valve 117 is provided on the water inlet pipe 116. A backflush pipe 132 is provided on the second multi-function port 131, and a second ball valve 133 is provided on the backflush pipe 132.

[0035] By installing a first ball valve 117 on the inlet pipe 116 and a second ball valve 133 on the backwash pipe 132, the direction and flow rate of water in both the inlet and backwash pipes can be easily controlled. Furthermore, this allows the wastewater filter to flexibly adjust to different operating modes, such as wastewater filtration, forward cleaning, and backwashing. Additionally, it facilitates the maintenance and repair of the wastewater filter.

[0036] Preferably, a wastewater filter with filter media that is not prone to caking also includes a programmable controller 3, and the first ball valve 117 and the second ball valve 133 are both electric valves, and the first ball valve 117 and the second ball valve 133 are both electrically connected to the programmable controller 3.

[0037] By setting up a programmable controller 3 to automatically control the first ball valve 117 and the second ball valve 133, the wastewater filter can automatically adjust its influent and backwashing operations based on real-time monitoring data and preset programs, without manual intervention, thus improving the automation level of the wastewater filter. Furthermore, the programmable controller 3 can flexibly adjust operating parameters according to different operating environments and needs, such as changing the influent rate or backwashing cycle, to adapt to treatment requirements under different water quality conditions, enhancing the adaptability and flexibility of the wastewater filter.

[0038] A further preferred embodiment of a wastewater filter with filter media that is not prone to caking also includes a vibrator 16, which is installed on the outside of the tank 1 and at the same horizontal level as the filter layer. The vibrator 16 is electrically connected to the programmable controller 3.

[0039] The vibration of the vibrator 16 causes impurities adhering to the surfaces of the first packing layer 121 and the second packing layer 122 to fall off, extending the service life of the packing. Since the vibrator 16 is electrically connected to the programmable controller 3, it can automatically start the vibration operation according to a preset time interval, ensuring the timeliness and effectiveness of the vibration operation.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater filter with filter media that is not prone to caking, characterized in that: The device includes a tank and a stirring device. The tank is divided into an inlet zone, a filtration zone, and an outlet zone from top to bottom. A filter plate is installed on the tank between the filtration zone and the outlet zone. Filter heads are installed on the filter plate. A through hole is provided at the center of the top of the tank. A first multi-functional port is provided at the inlet zone of the tank, and a second multi-functional port is provided at the outlet zone. The interior of the filtration zone is provided with a first packing layer with a lower density and a second packing layer with a higher density from top to bottom. The stirring device includes a geared motor, a rotating shaft, and a rake. The output shaft of the geared motor is connected to the top of the rotating shaft. The rotating shaft passes through the through hole and is connected to the bottom of the rotating shaft. The rake is vertically inserted into the first packing layer.

2. The sewage filter of claim 1, wherein: The first filler layer is a rigid plastic ball filler layer, the second filler layer is a ceramic granule filler layer, and the thickness of the first filler layer is greater than the thickness of the second filler layer.

3. The filter according to claim 1, wherein: The top of the rotating shaft is also equipped with a handwheel, which is used to manually drive the rotating shaft to rotate.

4. The filter according to claim 1, wherein: The tank has a first inspection port on its side wall, located below the filter plate. The first inspection port is for people to put their hands into the tank. The top of the tank has a second inspection port for people to enter the tank. The first inspection port and the second inspection port are respectively equipped with a first sealing cover and a second sealing cover.

5. The filter according to claim 4, wherein: The tank body is equipped with a ladder on the outside, and one end of the ladder is connected to the second maintenance port.

6. The filter according to claim 1, wherein: The first multi-functional port is equipped with a filter screen.

7. The filter according to claim 1, wherein: A water inlet pipe is connected to the first multi-functional port, and a first ball valve is installed on the water inlet pipe. A backflush pipe is installed on the second multi-functional port, and a second ball valve is installed on the backflush pipe.

8. The filter according to claim 7, wherein: It also includes a programmable controller, and both the first ball valve and the second ball valve are electric valves, and both the first ball valve and the second ball valve are electrically connected to the programmable controller.

9. The filter according to claim 8, wherein: It also includes a vibrator, which is installed on the outside of the tank and at the same level as the filter layer. The vibrator is electrically connected to the programmable controller.

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