A filter device for wastewater treatment

Abstract

The utility model discloses a filter device for wastewater treatment belongs to wastewater treatment technical field, this device includes processing jar, top cap and filter mechanism, the upside opening of processing jar, bottom is equipped with blowdown pipe, and is equipped with blowdown valve on blowdown pipe, is equipped with the water inlet pipe between the supporting ring and blowdown pipe in processing jar, filter mechanism is located in processing jar, and is placed on supporting ring, top cap is detachably connected with processing jar, is equipped with the water outlet pipe on top cap, is equipped with the compression ring in top cap, and compression ring is pressed on the upper end surface of filter mechanism. The filter mode of lower water inlet upper drainage greatly reduces the impurity adhesion amount of filter mechanism bottom, can carry out backflushing to filter mechanism, and backflushing effect is good, guarantees the filtration efficiency of filter device to wastewater.

Description

Technical Field

[0001] This utility model relates to a filtration device for wastewater treatment, belonging to the field of wastewater treatment technology. Background Technology

[0002] Industrial production and daily life generate a large amount of wastewater containing various impurities. Direct discharge of such wastewater can cause serious environmental pollution. Therefore, it is necessary to use wastewater treatment equipment to treat and purify the wastewater before discharge in order to achieve environmental protection.

[0003] For example, Chinese patent document CN117401748A discloses an environmentally friendly filtration device for wastewater, including a filter tank, a first filter, a first collection device, a second filter, a second collection device, a third filter, and a third collection device. The filter tank has an inlet at the top and an outlet at the bottom. The first, second, and third filter devices are fixedly installed inside the filter tank at intervals from top to bottom. The first, second, and third filter devices achieve graded filtration of industrial wastewater. The first filter, inclined from left to right, facilitates the flow of residues from the first filter to the first collection device, thus facilitating the treatment of residues on the first filter. Similarly, the second filter, also inclined from left to right, facilitates the flow of residues from the second filter to the second collection device, and the third filter, also inclined from left to right, facilitates the flow of residues from the third filter to the third collection device, thus facilitating the treatment of residues on the third filter.

[0004] However, the above-mentioned device uses a top-inlet and bottom-outlet method to filter wastewater. After a period of use, impurities in the wastewater tend to adhere to the upper surface of the filter device, which will cause the wastewater filtration efficiency of the entire device to drop significantly. Although nozzles are installed on the first, second and third filter devices to rinse the filter devices, the rinsing effect is not good. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a filtration device for wastewater treatment.

[0006] This utility model is achieved through the following technical solution: A filtration device for wastewater treatment includes a treatment tank, a top cover, and a filtration mechanism. The treatment tank has an opening on its upper side and a drain pipe at its bottom, with a drain valve installed on the drain pipe. A support ring is provided inside the treatment tank, and an inlet pipe is provided between the support ring and the drain pipe. The filtration mechanism is located inside the treatment tank and rests on the support ring. The top cover is detachably connected to the treatment tank and has an outlet pipe. A clamping ring is provided inside the top cover and presses against the upper surface of the filtration mechanism.

[0007] The bottom of the processing tank is fixedly equipped with multiple support legs in a circumferential array.

[0008] The bottom of the inner side of the treatment tank is provided with a spherical filter screen, and the center of the spherical filter screen is located below it.

[0009] The inlet of the water inlet pipe is located on the side wall of the treatment tank or extends outside the treatment tank, and the outlet of the water inlet pipe extends between the spherical filter screen and the bottom wall of the treatment tank.

[0010] The top cover is connected to the flange of the processing tank.

[0011] The shape and size of the filtration mechanism are adapted to the shape and size of the inner wall of the treatment tank.

[0012] The filtration mechanism includes a filter cylinder, inside which a graded filtration component and an activated carbon adsorption layer are arranged sequentially from bottom to top.

[0013] The graded filtration assembly includes a primary filter and a secondary filter. The secondary filter is located above the primary filter, and the mesh size of the secondary filter is smaller than that of the primary filter.

[0014] The filter cartridge has a water-permeable mesh above the activated carbon adsorption layer, and a handle is provided on the water-permeable mesh.

[0015] It also includes a multi-parameter online water quality monitoring system, which includes a sensor array, a data acquisition unit, and a remote transmission module. The sensor array is located on the inner wall of the top cover, and the data acquisition unit is electrically connected to the sensor array and the remote transmission module.

[0016] The beneficial effects of this utility model are as follows: After the filter device has been used for a period of time, since it uses the bottom water inlet and top water outlet method to filter wastewater, only a small amount of impurities in the wastewater will adhere to the bottom of the filter mechanism. At this time, close the water inlet pipe, introduce clean water into the filter device through the water outlet pipe, and open the drain valve on the drain pipe to discharge the wastewater in the device and the impurities accumulated at the bottom of the treatment tank, thereby achieving backwashing of the filter mechanism. The backwashing effect is good, ensuring the filtration efficiency of the filter device for wastewater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention.

[0018] In the diagram: 1-treatment tank, 2-top cover, 3-outlet pipe, 4-spherical filter screen, 5-inlet pipe, 6-filter cylinder, 7-activated carbon adsorption layer, 8-support ring, 11-permeable mesh, 12-handle, 13-primary filter screen, 14-secondary filter screen, 15-sensor array, 16-flange A, 17-flange B, 18-fastener, 19-sealing ring, 20-drain pipe, 21-drain valve, 22-support leg, 23-pressure ring. Detailed Implementation

[0019] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0020] like Figure 1 and Figure 2 As shown, the present invention discloses a filtration device for wastewater treatment, comprising a treatment tank 1, a top cover 2, and a filtration mechanism. The treatment tank 1 has an opening on its upper side and a drain pipe 20 at its bottom, with a drain valve 21 installed on the drain pipe 20. A support ring 8 is provided inside the treatment tank 1, and an inlet pipe 5 is provided between the support ring 8 and the drain pipe 20. The filtration mechanism is located inside the treatment tank 1 and rests on the support ring 8. The top cover 2 is detachably connected to the treatment tank 1 and has an outlet pipe 3. A clamping ring 23 is provided inside the top cover 2 and presses against the upper surface of the filtration mechanism. During wastewater treatment, wastewater enters the treatment tank 1 through the inlet pipe 5 and flows upwards, where it is filtered by the filtration mechanism. Particulate impurities in the wastewater are intercepted by the filtration mechanism and gradually settle downwards, accumulating at the bottom of the treatment tank 1. The filtered wastewater continues to flow upwards and is finally discharged from the outlet pipe 3. After the filter device has been used for a period of time, since it uses a bottom-inlet and top-outlet method to filter wastewater, only a small amount of impurities in the wastewater will adhere to the bottom of the filter mechanism. At this time, close the inlet pipe 5, introduce clean water into the filter device through the outlet pipe 3, and open the drain valve 21 on the drain pipe 20 to discharge the wastewater in the device and the impurities accumulated at the bottom of the treatment tank 1, thereby achieving backwashing of the filter mechanism. The backwashing effect is good, ensuring the filtration efficiency of the filter device for wastewater.

[0021] The bottom of the processing tank 1 is fixedly provided with multiple support legs 22 in a circumferential array. The processing tank 1 is supported and raised by the multiple support legs 22.

[0022] A spherical filter screen 4 is welded to the bottom of the inner side of the treatment tank 1, with the center of the sphere of the filter screen 4 located below it. The spherical filter screen 4 is located below the support ring 8, and the inlet pipe 5 passes through the spherical filter screen 4. The outlet of the inlet pipe 5 is located between the spherical filter screen 4 and the drain pipe 20. Wastewater entering the treatment tank 1 through the inlet pipe 5 first undergoes preliminary filtration through the spherical filter screen 4 to remove large particulate impurities in the wastewater. The large particulate impurities intercepted by the spherical filter screen 4 gradually settle and accumulate at the bottom of the treatment tank 1 and in the drain pipe 20 under their own weight. The spherical structure of the spherical filter screen 4 increases the filtration area, reduces resistance to wastewater, and improves the filtration efficiency of the device.

[0023] The inlet of the water inlet pipe 5 is located on the side wall of the treatment tank 1 or extends outside the treatment tank 1, and the outlet of the water inlet pipe 5 extends between the spherical filter screen 4 and the bottom wall of the treatment tank 1.

[0024] The top cover 2 is connected to the flange of the processing tank 1. For example... Figure 1 As shown, specifically, a flange A16 is welded to the upper outer wall of the treatment tank 1, and a flange B17 is welded to the lower outer wall of the top cover 2. Flange B17 is connected to flange A16 via multiple sets of fasteners 18, and a sealing ring 19 is placed between flange B17 and flange A16 for sealing, thus achieving a flange connection between the top cover 2 and the treatment tank 1. The fasteners 18 include bolts, nuts, spring washers, and flat washers.

[0025] The shape and size of the filter mechanism are adapted to the shape and size of the inner wall of the treatment tank 1. Specifically, the outer diameter of the filter mechanism is adapted to the inner diameter of the treatment tank 1, so as to radially limit the filter mechanism through the inner wall of the treatment tank 1. The filter mechanism is placed inside the treatment tank 1 and radially limited by the inner wall of the treatment tank 1, and its lower axial end is limited by the support ring 8 and its upper axial end is limited by the clamping ring 23. This prevents the filter mechanism from shifting during use, improves the filtration stability of the filter mechanism, and facilitates the removal of the filter mechanism from the treatment tank 1 for cleaning, maintenance or replacement.

[0026] The filtration mechanism includes a filter cylinder 6, and the filter cylinder 6 is provided with a graded filtration component and an activated carbon adsorption layer 7 from bottom to top.

[0027] The graded filtration assembly includes a primary filter 13 and a secondary filter 14. The secondary filter 14 is located above the primary filter 13, and the mesh size of the secondary filter 14 is smaller than that of the primary filter 13.

[0028] The filter cylinder 6 has a permeable mesh 11 above the activated carbon adsorption layer 7, and the permeable mesh 11 has a handle 12. After opening the top cover 2, it is convenient to put the filter mechanism into the treatment tank 1 through the handle 12, or to remove the filter mechanism from the filter tank 1 through the handle 12. The permeable mesh 11 intercepts the filter media in the activated carbon adsorption layer 7, preventing the filter media from being lost.

[0029] It also includes a multi-parameter online water quality monitoring system, which comprises a sensor array 15, a data acquisition unit, and a remote transmission module. The sensor array 15 is located on the inner wall of the top cover 2, and the data acquisition unit is electrically connected to the sensor array 15 and the remote transmission module. This multi-parameter online water quality monitoring system is existing technology and can be directly purchased; therefore, it will not be described in detail here. The sensor array 15 includes sensors for detecting parameters such as pH, dissolved oxygen, turbidity, conductivity, and temperature. By monitoring the wastewater treated by the filtration device using the multi-parameter online water quality monitoring system, it is easy to determine whether the treated wastewater meets the relevant treatment standards.

[0030] The filtration device for wastewater treatment provided by this utility model has the following working principle or usage process: Wastewater filtration and adsorption: After entering the treatment tank 1 through the inlet pipe 5, the wastewater first undergoes preliminary filtration through the spherical filter screen 4 to remove large particulate impurities. The large particulate impurities intercepted by the spherical filter screen 4 gradually settle and accumulate at the bottom of the treatment tank 1 and in the drain pipe 20 under their own weight. Then, the wastewater gradually flows upward, passing through the primary filter screen 13 to remove larger fine impurities, the secondary filter screen 14 to remove smaller fine impurities, and the activated carbon adsorption layer 7 to adsorb and remove odors, pigments, and some soluble pollutants from the wastewater. The wastewater then continues to flow upward, is filtered through the permeable net 11, and is discharged from the outlet pipe 3. The spherical filter screen 4, the primary filter screen 13, the secondary filter screen 14, and the permeable screen 11 form a graded filtration mode of "coarse first, fine later", which can more efficiently intercept impurities of different sizes in wastewater, avoid the rapid clogging of a single filter screen due to excessive load, extend the service life of the filter screen, and improve the filtration efficiency and filtration effect of the device. At the same time, an activated carbon adsorption layer 7 is set to adsorb and remove odors, pigments and some soluble pollutants in wastewater, which improves the purification effect of the device on wastewater.

[0031] Backwashing: After the filter device has been used for a period of time, since it uses a bottom-inlet and top-outlet method to filter wastewater, only a small amount of impurities in the wastewater will adhere to the lower surfaces of the primary filter screen 13, the secondary filter screen 14, and the permeable screen 11. At this time, close the inlet pipe 5, introduce clean water into the filter device through the outlet pipe 3, and open the drain valve 21 on the drain pipe 20 to flush away the impurities attached to the lower surfaces of the spherical filter screen 4, the primary filter screen 13, the secondary filter screen 14, and the permeable screen 11, and discharge the wastewater in the device and the impurities accumulated at the bottom of the treatment tank 1. This achieves backwashing of the filter mechanism and the spherical filter screen 4. The backwashing effect is good, ensuring the filtration efficiency of the filter device for wastewater.

[0032] When the primary filter 13, secondary filter 14, water-permeable mesh 11 and activated carbon adsorption layer 7 in the filtration mechanism reach saturation, the top cover 2 can be opened and the filtration mechanism can be taken out from the treatment tank 1 for cleaning or replacement. This simplifies the maintenance process of the filtration mechanism and saves maintenance time and labor costs.

Claims

1. A filtration device for wastewater treatment, characterized in that: The device includes a treatment tank (1), a top cover (2), and a filter mechanism. The treatment tank (1) has an opening on the upper side and a drain pipe (20) at the bottom. A drain valve (21) is installed on the drain pipe (20). A support ring (8) is provided inside the treatment tank (1), and an inlet pipe (5) is provided between the support ring (8) and the drain pipe (20) inside the treatment tank (1). The filter mechanism is located inside the treatment tank (1) and placed on the support ring (8). The top cover (2) is detachably connected to the treatment tank (1). A water outlet pipe (3) is provided on the top cover (2). A clamping ring (23) is provided inside the top cover (2), and the clamping ring (23) presses on the upper surface of the filter mechanism.

2. The filtration device for wastewater treatment as described in claim 1, characterized in that: The bottom of the processing tank (1) is fixedly provided with multiple support legs (22) in a circumferential array.

3. The filtration device for wastewater treatment as described in claim 1, characterized in that: The bottom of the inner side of the treatment tank (1) is provided with a spherical filter screen (4), and the center of the spherical filter screen (4) is located below it.

4. The filtration device for wastewater treatment as described in claim 3, characterized in that: The inlet of the water inlet pipe (5) is located on the side wall of the treatment tank (1) or extends outside the treatment tank (1), and the outlet of the water inlet pipe (5) extends between the spherical filter screen (4) and the bottom wall of the treatment tank (1).

5. The filtration device for wastewater treatment as described in claim 1, characterized in that: The top cover (2) is connected to the flange of the processing tank (1).

6. The filtration device for wastewater treatment as described in claim 1, characterized in that: The shape and size of the filtration mechanism are adapted to the shape and size of the inner wall of the treatment tank (1).

7. The filtration device for wastewater treatment as described in claim 1, characterized in that: The filtration mechanism includes a filter cylinder (6), and the filter cylinder (6) is provided with a graded filtration component and an activated carbon adsorption layer (7) from bottom to top.

8. The filtration device for wastewater treatment as described in claim 7, characterized in that: The graded filtration assembly includes a primary filter (13) and a secondary filter (14). The secondary filter (14) is located above the primary filter (13), and the mesh size of the secondary filter (14) is smaller than that of the primary filter (13).

9. The filtration device for wastewater treatment as described in claim 7, characterized in that: The filter cylinder (6) has a permeable mesh (11) above the activated carbon adsorption layer (7) inside, and the permeable mesh (11) has a handle (12).

10. The filtration device for wastewater treatment as described in claim 1, characterized in that: It also includes a multi-parameter online water quality monitoring system, which includes a sensor array (15), a data acquisition unit and a remote transmission module. The sensor array (15) is located on the inner wall of the top cover (2), and the data acquisition unit is electrically connected to the sensor array (15) and the remote transmission module.

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