Wastewater filtering device

Abstract

The utility model provides a wastewater filtering device which comprises a treatment tank, and a filtering assembly is mounted in the treatment tank; the treatment tank comprises a tank body and a cover body, a support frame is mounted on the inner wall of the tank body, a liquid inlet and a liquid outlet are formed in the cover body, the filter assembly comprises a filter element inserted into the support frame, the lower part of the filter element is conical, the upper part of the filter element is pressed by the cover body, and a precipitation space is reserved between the lower end of the filter element and the bottom of the tank body; the filter element comprises a filter cartridge and an activated carbon layer covering the outer side of the filter cartridge, an opening in the upper end of the filter cartridge is communicated with the liquid outlet in the cover body, and a plurality of liquid passing holes are formed in the side part and the bottom of the filter cartridge; the supporting frame comprises a supporting ring and a plurality of supporting rods on the supporting ring, each supporting rod comprises a front-end main rod body and a rear-end main rod body, and a self-adaptive adjusting structure is arranged between the front-end main rod body and the rear-end main rod body. The filter assembly is supported through the supporting frame, the adaptability is good, the filter assembly is stable and reliable in the working process, the filtering effect is good, and the service life is long.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial wastewater filtering equipment, and in particular relates to a wastewater filtering device. Background Art

[0002] Industrial wastewater treatment refers to the water used in the industrial production process, which is properly treated and reused in production or properly discharged from the factory. In the process of industrial wastewater treatment, industrial wastewater needs to be filtered to reduce the content of impurities and harmful substances in the wastewater. The filtering performance of traditional filtering devices is limited, and there are problems such as reduced reuse value of treated wastewater or excessive discharge. The filtering devices in the prior art have added filtering structures and even use a combination of multiple filtering methods for filtering. Although the filtering performance has been improved to a certain extent, such filtering devices have complex structures and high operating costs. In addition, when encountering a high impurity content, the service life drops sharply and may even cause blockage. Therefore, it is necessary to improve the existing filtering devices. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a wastewater filtering device.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A wastewater filtering device comprises a treatment tank, in which a filter assembly is installed; the treatment tank comprises a tank body and a cover body, a support frame is installed on the inner wall of the tank body, a liquid inlet and a liquid discharge port are provided on the cover body, and the filter assembly comprises a filter element inserted in the support frame, the lower part of the filter element is conical, the upper part is pressed by the cover body, and a sedimentation space is left between the lower end of the filter element and the bottom of the tank body; the filter element comprises a filter cartridge and an activated carbon layer coated on the outer side of the filter cartridge, the upper end opening of the filter cartridge is communicated with the liquid discharge port on the cover body, and the side and bottom of the filter cartridge are provided with a plurality of liquid holes; the support frame comprises a support ring and a plurality of support rods on the support ring, the support rods are arranged obliquely downward, the upper ends of the support rods are connected to the support ring, and the lower ends are installed on the inner wall of the tank body, the support rods comprise a front main rod body and a rear main rod body, and an adaptive adjustment structure is provided between the two.

[0006] Furthermore, an outward flange is provided at the upper end of the filter cartridge, and a sealing member is provided between the flange and the cover member.

[0007] Furthermore, a lower flange is provided at the upper end of the tank body, and an upper flange is provided at the lower end of the cover body, and the upper and lower flanges are fixed by a connecting piece.

[0008] Furthermore, a sealing ring is provided between the upper flange and the lower flange.

[0009] Furthermore, the adaptive adjustment structure includes a spring, and two ends of the spring are respectively fixed to the front main rod body and the rear main rod body.

[0010] Furthermore, the support rod is made of spring steel, and the adaptive adjustment structure includes a bending portion between a front main rod body and a rear main rod body, and the bending portion is S-shaped.

[0011] Furthermore, the front main rod body, the rear main rod body and the bending portion are an integrally formed structure.

[0012] Furthermore, the liquid discharge port is arranged in the middle of the cover body, and the liquid inlet is arranged eccentrically.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention has a reasonable structural design. The filter assembly is supported by a support frame and is fixed by the cover body. The adaptive adjustment structure of the support frame can adaptively deform according to the cover body pressing force, which can not only adapt to the displacement generated by the cover body pressing process, but also ensure the stability of the filter assembly during operation. Industrial wastewater enters the treatment tank through the liquid inlet, and some impurities will fall down to the sedimentation space. After the wastewater is filtered through the activated carbon layer, it will enter the filter cartridge through the liquid hole and be discharged through the cover body discharge port to achieve filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the appearance structure created by the present invention;

[0017] Figure 2 A cross-sectional view of the structure created by the present invention;

[0018] Figure 3 It is a schematic diagram of the tank body part in the invention;

[0019] Figure 4 It is a schematic diagram of the cover body part in the invention;

[0020] Figure 5 A schematic diagram of a support frame in the invention;

[0021] Figure 6 A schematic diagram of a filter element in the invention;

[0022] Figure 7 It is a schematic diagram of the filter cartridge in the present invention. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. 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. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A wastewater filtering device, such as Figures 1 to 7 As shown, it includes a treatment tank, in which a filter assembly is installed; the treatment tank includes a tank body 1 and a cover body 2, a support frame 3 is installed on the inner wall of the tank body, a liquid inlet 4 and a liquid discharge port 5 are provided on the cover body, and the filter assembly includes a filter element 6 inserted in the support frame, the lower part of the filter element is conical, the upper part is pressed by the cover body, and a sedimentation space 22 is left between the lower end of the filter element and the bottom of the tank body. Industrial wastewater enters the treatment tank through the liquid inlet, and some impurities will fall down to the sedimentation space instead of being directly blocked on the surface of the filter element, thereby extending the service life of the filter element. The filter element includes a filter cartridge 7 and an activated carbon layer 8 coated on the outside of the filter cartridge. The opening 9 at the upper end of the filter cartridge is connected to the drain port on the cover body. The side and bottom of the filter cartridge are provided with a plurality of liquid holes 10. The support frame includes a support ring 11 and a plurality of support rods 12 on the support ring. The support rods are arranged obliquely downward, with their upper ends connected to the support rings and their lower ends installed on the inner wall of the tank body. The support rods include a front main rod body 13 and a rear main rod body 14, with an adaptive adjustment structure 15 provided between the two.

[0028] In an optional embodiment, the bottom of the tank body is designed as an inclined slope, and a discharge port 23 is provided at the lowest point of the slope. The discharge port can be opened regularly as needed to discharge impurities deposited at the bottom of the tank body.

[0029] A lower flange 18 is provided at the upper end of the tank body, and an upper flange 19 is provided at the lower end of the cover body. The upper and lower flanges are fixed by a connecting piece 20, and for example, they are detachably connected and fixed by bolts. An outward flange 16 is provided at the upper end of the filter cartridge, and a sealing piece 17 is provided between the flange and the cover body. A sealing ring 21 is provided between the upper flange and the lower flange. The sealing between the filter assembly and the treatment tank (cover body), and the sealing between the cover body and the tank body are guaranteed. Usually, the front main rod body, the rear main rod body and the bending part are an integrally formed structure. The drain port is arranged in the middle of the cover body, and the liquid inlet is arranged eccentrically.

[0030] In an optional embodiment, the adaptive adjustment structure includes a spring, and both ends of the spring are respectively fixed to the front main rod body and the rear main rod body. In another optional embodiment, the support rod is made of spring steel, and the adaptive adjustment structure includes a bending portion between the front main rod body and the rear main rod body, and the bending portion is S-shaped.

[0031] When assembling the filter assembly, directly insert the lower end (conical end) of the filter element into the support ring, then install the cover body, and use the cover body to press the filter element. Since the adaptive adjustment structure can adaptively deform according to the pressing force of the cover body, it can not only stably support the filter element, but also adapt to the displacement caused by the pressing process of the cover body, ensuring the stability of the filter assembly during use.

[0032] The invention has a reasonable structural design. The filter assembly is supported by a support frame and is fixed by the cover body. The adaptive adjustment structure of the support frame can adaptively deform according to the cover body pressing force, which can not only adapt to the displacement generated by the cover body pressing process, but also ensure the stability of the filter assembly during operation. Industrial wastewater enters the treatment tank through the liquid inlet, and some impurities will fall down to the sedimentation space. After the wastewater is filtered through the activated carbon layer, it will enter the filter cartridge through the liquid hole and be discharged through the cover body discharge port to achieve filtration.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater filtration device, characterized in that: It comprises a treatment tank, in which a filter assembly is installed; the treatment tank comprises a tank body and a cover body, a support frame is installed on the inner wall of the tank body, a liquid inlet and a liquid discharge port are arranged on the cover body, and the filter assembly comprises a filter element inserted in the support frame, the lower part of the filter element is conical, the upper part is pressed by the cover body, and a sedimentation space is left between the lower end of the filter element and the bottom of the tank body; the filter element comprises a filter cartridge and an activated carbon layer coated on the outer side of the filter cartridge, the upper end opening of the filter cartridge is communicated with the liquid discharge port on the cover body, and a plurality of liquid holes are arranged on the side and bottom of the filter cartridge; the support frame comprises a support ring and a plurality of support rods on the support ring, the support rods are arranged obliquely downward, the upper ends of the support rods are connected to the support rings, and the lower ends are installed on the inner wall of the tank body, the support rods comprise a front main rod body and a rear main rod body, and an adaptive adjustment structure is arranged between the two.

2. A wastewater filtration device according to claim 1, characterized in that: An outward flange is arranged on the upper end of the filter cartridge, and a sealing member is arranged between the flange and the cover member.

3. A wastewater filtration device according to claim 1, characterized in that: The upper end of the tank body is provided with a lower flange, the lower end of the cover body is provided with an upper flange, and the upper and lower flanges are fixed by a connecting piece.

4. A wastewater filtration device according to claim 3, characterized in that: A sealing ring is arranged between the upper flange and the lower flange.

5. A wastewater filtration device according to claim 1, characterized in that: The self-adaptive adjustment structure comprises a spring, and two ends of the spring are respectively fixed to the front main rod body and the rear main rod body.

6. A wastewater filtration device according to claim 1, characterized in that: The support rod is made of spring steel, and the adaptive adjustment structure includes a bending portion between a front main rod body and a rear main rod body, and the bending portion is S-shaped.

7. A wastewater filtration device according to claim 6, characterized in that: The front main rod body, the rear main rod body and the bending part are an integrally formed structure.

8. A wastewater filtration device according to claim 1, characterized in that: The liquid discharge port is arranged in the middle of the cover body, and the liquid inlet is arranged eccentrically.

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