Wastewater filter

Abstract

The utility model provides a wastewater filter which comprises a tank body, a filter basket is connected in the tank body in a suspended manner, a filter bag is sleeved on the outer side of the filter basket, a feed port is arranged at the lower part of the side wall of the tank body, a discharge port is arranged at the upper part of the side wall of the tank body, a discharge port is arranged at the bottom of the tank body, a cover plate is connected with an opening at the top of the tank body in a covering manner, and a pressurizing port is arranged on the cover plate. The waste water treatment device has the beneficial effects that solid particles in waste water enter the tank body from the lower part during use and then are filtered by the filter bag and the filter basket in sequence, the filtered water is discharged from the upper part, and the solid particles in the waste water are discharged from the drain port at the bottom; in order to prevent blockage and increase the flow area of the filter as much as possible, the tank body is designed to be in a mode of feeding from the lower part and discharging from the upper part, so that solid particles can be conveniently and cleanly filtered at one time; besides, a pressurizing opening is formed in the cover body, and nitrogen is filled into the tank body through the pressurizing opening for back flushing, so that solid particles attached to the filter bag can be quickly separated from the filter bag.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, in particular to a wastewater filter. Background Art

[0002] The process wastewater generated by the production of zinc thiazole is usually discharged from the wastewater kettle into the wastewater pool through a stainless steel pipe. Since the discharged wastewater contains solid particles of about 10 microns, they will be deposited on the pipes and the bottom of the wastewater pool, which can easily lead to pipe blockage and a large amount of solid matter accumulating in the wastewater pool, which is difficult to clean. Even if it is cleaned manually, it can easily lead to accidents such as suffocation and poisoning. Therefore, the study of a device for filtering process wastewater is of great significance for the post-discharge operation. Utility Model Content

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and provides a wastewater filter.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A wastewater filter comprises a tank body, a filter basket is suspended inside the tank body, a filter bag is sleeved on the outside of the filter basket, a feed inlet is provided at the lower part of the tank body side wall, a discharge port is provided at the upper part, a drain port is provided at the bottom of the tank body, a cover plate is connected to the opening at the top of the tank body, and a pressurizing port is provided on the cover plate.

[0006] Furthermore, a connecting edge is fixedly connected to the inner wall of the tank below the discharge port, a fixed edge is circumferentially provided on the outer side of the top of the filter basket, the fixed edge is overlapped and fixed on the upper side of the connecting edge, and the opening edge of the top of the filter bag is crimped between the fixed edge and the connecting edge.

[0007] Furthermore, a plurality of fixing holes are evenly arranged on the fixing edge, connecting holes with internal threads are opened at corresponding positions of the fixing holes on the connecting edge, a through hole is provided at corresponding position of each connecting hole on the opening edge of the top end of the filter bag, bolts are threaded between the fixing holes and the corresponding connecting holes, and the bolts are arranged through the corresponding through holes.

[0008] Furthermore, an annular limiting groove is circumferentially provided on the upper surface of the connecting edge at the outer side of the fixed edge, and the opening edge of the top end of the filter bag is pressed into the limiting groove through a limiting ring.

[0009] Furthermore, two handles are arranged opposite to each other along the upper side of the fixing portion.

[0010] Furthermore, a mounting edge is horizontally provided on the outer side of the opening at the top of the tank body, and a plurality of U-shaped grooves opening outward are evenly arranged at the edge of the mounting edge. Mounting holes are provided at corresponding positions of the U-shaped grooves on the cover plate, and bolt and nut pairs are connected between the mounting holes and the corresponding U-shaped grooves.

[0011] Furthermore, a pressure gauge is connected to the cover plate.

[0012] Furthermore, the bottom of the tank body is configured as a conical structure, and the drain port is located at the bottom of the conical structure.

[0013] Furthermore, a plurality of pillars are evenly fixed to the bottom of the tank body.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] When the wastewater filter described in the utility model is in use, solid particles in the wastewater enter the tank body from the bottom, and are filtered through the filter bag and the filter basket in sequence. The filtered water is discharged from the top, and the solid particles in the wastewater can be discharged from the drain port at the bottom. In order to prevent clogging and to increase the flow area of ​​the filter as much as possible, the tank body is designed in a manner of feeding from the bottom and discharging from the top, so that the solid particles can be filtered cleanly at one time. In addition, in order to prevent the solid particles in the wastewater from adhering to the filter bag and causing a decrease in the filtration efficiency, a pressurizing port is provided on the cover body, and nitrogen is filled into the tank body through the pressurizing port for backwashing, so that the solid particles attached to the filter bag can quickly break away from the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the wastewater filter according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 This is a top view of the tank body and filter basket connection structure described in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Tank body; 101. Feed inlet; 102. Discharge outlet; 103. Drain outlet; 104. Connecting edge; 105. Limiting groove; 106. Mounting edge; 107. U-shaped groove; 2. Filter basket; 201. Fixed edge; 202. Filter hole; 203. Handle; 3. Filter bag; 4. Cover plate; 401. Pressurization port; 5. Pressure gauge; 6. Bolt and nut pair; 7. Bolt; 8. Limiting ring; 9. Pillar. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] In the description of the present utility model, 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 utility model 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 utility model. 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. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present 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 an indirect connection 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 present invention can be understood by specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] As shown in the figure, a wastewater filter includes a tank body 1, a filter basket 2 is suspended inside the tank body 1, a filter bag 3 is sleeved on the outside of the filter basket 2, a feed inlet 101 is opened at the lower part of the side wall of the tank body 1, a discharge port 102 is opened at the upper part, and a drain port 103 is provided at the bottom of the tank body 1, a cover plate 4 is connected to the top opening of the tank body 1, and a pressurizing port 401 is provided on the cover plate 4. In this embodiment, a layer of 800-mesh filter bag is wrapped on the outside of the filter basket 2. After the filter bag 3 is used for a period of time, the filter bag 3 will be blocked and needs to be cleaned and replaced. Therefore, after a period of normal use, the outer filter bag 3 is replaced and reused; and in this embodiment, in order to prevent clogging and to increase the flow area of ​​the filter as much as possible, the tank body 1 is designed to be fed from the bottom and discharged from the top, so that the solid particles can be filtered cleanly at one time; after the solid particles in the wastewater enter the tank body 1 from the bottom, they are filtered by the filter bag 3 and the filter basket 2 in turn, and the filtered water is discharged from the top, and the solid particles in the wastewater can be discharged from the drain port 103 at the bottom; in addition, in order to prevent the solid particles in the wastewater from adhering to the filter bag 3 and causing the filtration efficiency to decrease, a pressurization port 401 is set on the cover body, and 50kPa nitrogen is filled into the tank body 1 through the pressurization port 401 for backwashing, so that the solid particles attached to the filter bag 3 can quickly break away from the filter bag 3.

[0027] A connecting edge 104 is fixedly connected to the inner wall of the tank body 1 below the discharge port 102 , and a fixed edge 201 is circumferentially provided on the outer side of the top end of the filter basket 2 . The fixed edge 201 is overlapped and fixed on the upper side of the connecting edge 104 , and the edge of the top opening of the filter bag 3 is crimped between the fixed edge 201 and the connecting edge 104 .

[0028] A plurality of fixing holes are evenly arranged on the fixing edge 201, and connecting holes with internal threads are opened at corresponding fixing holes on the connecting edge 104, and a through hole is provided at corresponding connection hole on the top opening edge of the filter bag 3, and a bolt 7 is screwed between the fixing hole and the corresponding connection hole, and the bolt 7 is arranged through the corresponding through hole.

[0029] An annular limiting groove 105 is provided on the upper surface of the connecting edge 104 at the outer side of the fixed edge 201, and the edge of the top opening of the filter bag 3 is pressed into the limiting groove 105 by the limiting ring 8. In this embodiment, the edge near the top opening of the filter bag 3 is pressed into the limiting groove 105 by the limiting ring 8. When the filter bag 3 is installed in the tank body 1, the filter bag 3 is initially fixed, and then the filter basket 2 is sleeved in the filter bag 3, and the fixed edge 201 is pressed onto the connecting edge 104. At this time, the edge at the top opening of the filter bag 3 is pressed between the fixed edge 201 and the connecting edge 104, and finally the fixed edge 201 and the connecting edge 104 are fixed together by the bolt 7.

[0030] Two inverted handles 203 are oppositely arranged on the upper side of the fixed edge 201 to facilitate operators to take and place the filter basket 2.

[0031] A mounting edge 106 is horizontally provided on the outer side of the top opening of the tank body 1, and a plurality of U-shaped grooves 107 opening outward are evenly arranged at the edge of the mounting edge 106. Mounting holes are provided at locations corresponding to the U-shaped grooves 107 on the cover plate 4, and bolt and nut pairs 6 are connected between the mounting holes and the corresponding U-shaped grooves 107.

[0032] The cover plate 4 is also connected to a pressure gauge 5 to prevent the discharge port 102 from being blocked and causing pressure build-up inside the tank body 1 , so that the pressure inside the tank body 1 can be intuitively and timely understood.

[0033] The bottom of the tank body 1 is configured as a conical structure, and the drain port 103 is located at the bottom of the conical structure, ensuring that the residue in the tank body 1 can be discharged smoothly and avoiding accumulation of material at the bottom of the tank body 1 .

[0034] A plurality of pillars 9 are evenly fixed to the bottom of the tank body 1 to support the tank body 1 .

[0035] In this embodiment, the filter basket 2 is a barrel-shaped structure, and a plurality of filter holes 202 are evenly arranged on the surface.

[0036] The working process of this embodiment is as follows:

[0037] After the solid particles in the wastewater enter the tank body 1 from the bottom, they are filtered by the filter bag 3 and the filter basket 2 in turn, and the filtered water is discharged from the top, and the solid particles in the wastewater are discharged from the drain port 103 at the bottom. During the filtering process, 50kPa of nitrogen can be always filled into the tank body 1 through the pressurization port 401 for backwashing to ensure that the solid crystals attached to the filter bag 3 can be smoothly separated from the filter bag 3, and to ensure that the filtering efficiency will not be reduced due to the clogging of the filter bag 3 during long-term filtering.

[0038] 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater filter, characterized in that: It includes a tank body, a filter basket is suspended inside the tank body, a filter bag is sleeved on the outside of the filter basket, a feed inlet is opened at the lower part of the tank body side wall, a discharge port is opened at the upper part, and a drain port is provided at the bottom of the tank body. A cover plate is connected to the opening at the top of the tank body, and a pressurizing port is provided on the cover plate.

2. A wastewater filter according to claim 1, characterized in that: A connecting edge is fixedly connected to the inner wall of the tank below the discharge port, and a fixed edge is circumferentially provided on the outer side of the top of the filter basket. The fixed edge is overlapped and fixed on the upper side of the connecting edge, and the edge of the opening at the top of the filter bag is crimped between the fixed edge and the connecting edge.

3. A wastewater filter according to claim 2, characterized in that: A plurality of fixing holes are evenly arranged on the fixing edge, connecting holes with internal threads are opened at corresponding positions of the fixing holes on the connecting edge, a through hole is provided at corresponding position of each connecting hole on the opening edge of the top end of the filter bag, bolts are screwed between the fixing holes and the corresponding connecting holes, and the bolts are arranged through the corresponding through holes.

4. A wastewater filter according to claim 2, characterized in that: An annular limiting groove is circumferentially provided on the upper surface of the connecting edge at the outer side of the fixed edge, and the opening edge of the top end of the filter bag is pressed into the limiting groove through a limiting ring.

5. A wastewater filter according to claim 2, characterized in that: Two handles are arranged opposite to each other along the upper side of the fixing portion.

6. A wastewater filter according to claim 1, characterized in that: A mounting edge is horizontally arranged on the outer side of the opening at the top of the tank body, and a plurality of U-shaped grooves opening outward are evenly arranged at the edge of the mounting edge. Mounting holes are arranged at corresponding positions of the U-shaped grooves on the cover plate, and bolt and nut pairs are connected between the mounting holes and the corresponding U-shaped grooves.

7. A wastewater filter according to claim 1, characterized in that: A pressure gauge is also connected to the cover plate.

8. A wastewater filter according to claim 1, characterized in that: The bottom of the tank body is arranged as a conical structure, and the drain port is located at the bottom of the conical structure.

9. A wastewater filter according to claim 1, characterized in that: A plurality of pillars are evenly fixed to the bottom of the tank body.

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