CN116116084A - External inflow type filter for sewage treatment - Google Patents

Abstract

The invention provides an external inflow filter for sewage treatment, which comprises a box body, wherein a water baffle plate for dividing the interior of the box body into a first chamber and a second chamber is fixedly arranged in the box body, a rotary drum assembly is rotatably arranged in the first chamber and is communicated with the first chamber and the second chamber, a water inlet pipe and a water outlet pipe which are respectively communicated with the first chamber and the second chamber are arranged at the outer side of the box body, and a discharging assembly is arranged at the position of the rotary drum assembly.

Description

An external inflow filter for sewage treatment

technical field

The invention belongs to the technical field of sewage treatment equipment, in particular to an external inflow filter for sewage treatment.

Background technique

At present, in the sewage treatment industry, microfilters are usually used to finely filter sewage in the pretreatment stage. However, due to the structural characteristics of microfilters, the processing capacity of equipment of the same specification is small. The internal water-inlet drum filter used for fine filtration has a large processing capacity, but because the intercepted filtrate needs to be flushed into the slag receiving hopper in the equipment through a high-pressure backwashing device, it not only consumes a lot of energy, but also The filtrate has a high water content and requires secondary treatment. This patent has invented an external inflow filter for sewage treatment, which has the characteristics of high treatment precision, large treatment capacity, and low water content of the filtrate. And other sewage, has a very good treatment effect.

Contents of the invention

The invention proposes an external inflow filter for sewage treatment, which solves the problems in the prior art.

The technical solution of the present invention is achieved in the following way: an external inflow filter for sewage treatment, including a box body, a baffle is fixed inside the box body to divide the inside into a first chamber and a second chamber The water plate, the first chamber is rotated inside the drum assembly, the drum assembly is connected with the first chamber and the second chamber, and the outside of the box is provided with the first chamber and the second chamber respectively. The water inlet pipe, the water outlet pipe, and the drum assembly are provided with a discharge assembly.

As a preferred embodiment, both the water inlet pipe and the water outlet pipe are located at the lower part of the box body, a drive motor is arranged above the water inlet pipe, and a drive shaft is fixedly installed at one end of the drum assembly, and the drive shaft passes through the box body and drives The output end of the motor is fixedly connected, the load-bearing tube is fixedly installed in the second chamber, the inner fixed seat is fixedly installed in the middle of the load-bearing tube, the support seat is fixedly installed on the inner fixed seat, and the driven shaft is fixedly installed at the other end of the drum assembly , the driven shaft is rotated and set in the support seat, and the backwashing assembly is set at the drum assembly.

As a preferred embodiment, the drum assembly includes an outer mesh, an inner mesh and U-shaped grooves, the inner mesh is arc-shaped and alternately connected with the U-shaped grooves, fixed and wound into a cylindrical shape, and the inside of the inner mesh wound into a cylindrical shape A number of evenly distributed inner supports are fixedly installed, and the outer net is wrapped around the outer side of the inner net to form a cylindrical shape. The two ends of the outer net wound into a cylindrical shape are respectively fixed with six-rib support plates and blind plates. The boards are set relative to each other.

As a preferred embodiment, the discharge assembly includes a discharge brush arranged on the outside of the drum assembly, one end of the discharge brush is rotatably matched with the water baffle, a brush motor is fixed on the outside of the box, and the brush motor The output end is fixedly connected with the discharge brush.

As a preferred embodiment, a brush bearing seat is fixedly arranged on the water retaining plate, and a bearing is fixedly arranged inside the brush bearing seat, the end of the discharge brush is fixedly connected with the inner ring of the bearing, and the side of the box body is opened There is a discharge port, and an inclined material guide plate is fixed at the discharge port. One end of the material guide plate is located at the discharge brush in the box, and the other end is located outside the discharge port. A protective cover is fixed at the discharge port. The protective cover is located above the material guide plate.

As a preferred embodiment, the backwash assembly includes a backwash water pump arranged outside the tank, the input end of the backwash water pump communicates with the second chamber, and the output end of the backwash water pump communicates with an external flushing device through a valve group and the inner flushing device, the outer flushing device includes an outer flushing hose, a fixed plate is fixed on the side wall of the box, the outer flushing hose passes through the fixed plate and the water baffle in turn and is located outside the drum assembly, the outer flushing soft The pipe is connected with several nozzles opposite to the drum assembly, and the inner flushing device is installed through the end of the drum assembly.

As a preferred embodiment, the inner flushing device includes an inner flushing hose, and an outer fixing seat is fixedly arranged on the box body, and the inner flushing hose passes through the outer fixing seat, the inner fixing seat and the driven shaft in turn, and the inner flushing hose Set coaxially with the driven shaft, the driven shaft is cylindrical and its inner diameter is greater than the outer diameter of the inner flushing hose.

As a preferred embodiment, an overflow box is arranged on the water baffle, and the two ends of the overflow box communicate with the first chamber and the second chamber respectively. The bottom surface of the overflow box is an inclined surface, and the bottom surface of the overflow box is close to the The height of the position on one side of the first chamber is higher than the height of the position on the side close to the second chamber.

As a preferred embodiment, the bottom of the first chamber is communicated with a water inlet side drain port, and the bottom of the second chamber is connected with a water outlet side drain port.

After adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

The sewage flows into the first chamber of the equipment box from the water inlet pipe. Due to the interception of the water baffle, the sewage can only flow from the outside of the drum assembly to the inside of the drum assembly in the first chamber, and from the drum assembly The inner flow enters the second chamber, and then flows out from the outlet pipe, so the equipment has high processing precision, submerged water flow, and high processing capacity;

Due to the interception of the drum assembly, the fine garbage in the sewage is intercepted on the outside of the drum assembly, and the drum assembly rotates, and the intercepted garbage adheres to the outside of the drum assembly, and the rotating drum assembly drives its The garbage attached to the surface is transported to the unloading component, and the intercepted suspended solids will not be transported into the filtered sewage with the operation of the equipment if the suspended solids are not effectively removed, which has high reliability and suspension matter removal rate;

The unloading assembly is in contact with the drum assembly to clean up the garbage and discharge it out of the equipment. Since there is no backwash water involved in the garbage cleaning process, the solid moisture content is low;

Through the structural design of the inner flushing device and the outer flushing device, the drum assembly can be effectively cleaned to prevent clogging;

The setting of the overflow box can effectively control the water level and prevent the sewage from overflowing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the right structure of the present invention shown in Fig. 1;

Fig. 3 is a structural schematic diagram of a drum assembly, a discharge assembly and a backwash assembly;

Fig. 4 is a structural schematic diagram of the drum assembly.

In the figure, 1-inlet pipe; 2-outrigger; 3-box; 4-box frame; 5-drum assembly; 51-outer net; Rib support plate; 55-inner support; 56-C-type pressure plate; 57-fastening screw; 58-blind plate; 6-water retaining plate; 7-climbing ladder; 10-protective cover; 11-brush motor; 12-inlet side drain port; 13-liquid level gauge; 14-drive motor; 15-outlet pipe; 16-pump seat; 17-valve group; 18-backwash Water pump; 19-inner flushing hose; 20-outer flushing hose; 21-outer flushing device; 22-fixed plate; 23-inner flushing device; 24-outer fixing seat; 25-inner fixing seat; 27-support seat; 28-driven shaft; 29-brush bearing seat; 30-unloading brush; 31-drive shaft; 32-overflow box; 33-first chamber; 34-second chamber.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1-4, an external inflow filter for sewage treatment includes a box body 3, and the interior of the box body 3 is fixedly arranged to divide the interior into a first chamber 33 and a second chamber 34 of the water baffle 6, the first chamber 33 is rotated inside a drum assembly 5, the drum assembly 5 communicates with the first chamber 33 and the second chamber 34, and the outer side of the box body 3 is respectively provided with the first The first chamber 33 and the second chamber 34 are connected to the water inlet pipe 1 and the water outlet pipe 15, and the drum assembly 5 is provided with a discharge assembly.

Sewage flows into the first chamber 33 of the equipment box 3 from the water inlet pipe 1. Due to the interception of the water baffle 6, the sewage can only flow into the drum assembly from the outside of the drum assembly 5 in the first chamber 33. 5, and flow from the inside of the drum assembly 5 into the second chamber 34, and then flow out from the outlet pipe 15. Due to the interception of the drum assembly 5, the fine garbage in the sewage is intercepted outside the drum assembly 5, and the drum assembly 5 rotates, and the intercepted garbage adheres to the outside of the drum assembly 5, and the drum assembly 5 rotates During the process, the garbage attached to the surface is driven to be transported to the unloading assembly. The unloading assembly is in contact with the drum assembly 5 to clean up the garbage and discharge it out of the equipment. Since there is no backwashing water involved in the garbage removal process, the solid moisture content is low.

The water inlet pipe 1 and the water outlet pipe 15 are all located at the bottom of the box body 3, the top of the water inlet pipe 1 is provided with a drive motor 14, and one end of the drum assembly 5 is fixedly provided with a drive shaft 31, and the drive shaft 31 passes through the box body 3 and The output end of the driving motor 14 is fixedly connected, the second chamber 34 is fixedly provided with a load-bearing tube 26, the middle part of the load-bearing tube 26 is fixedly provided with an inner fixed seat 25, and the inner fixed seat 25 is fixedly provided with a support seat 27, and the drum assembly The other end of 5 is fixed with a driven shaft 28, and the driven shaft 28 is rotatably set in the support seat 27, and the drum assembly 5 is provided with a backwash assembly, and the sewage enters the first cavity of the tank 3 from the water inlet pipe 1 In the chamber 33, since the sewage in the first chamber 33 is intercepted by the water retaining plate 6, the sewage flows from the outside of the drum assembly 5 to the inside of the drum assembly 5, during which the drum assembly 5 Driven by the drive motor 14 to rotate around the center, the intercepted rubbish is attached to the outside of the drum assembly 5 nets.

The drum assembly 5 includes an outer net 51, an inner net 52 and a U-shaped groove 53. The inner net 52 is arc-shaped and alternately connected with the U-shaped groove 53, and is wound into a cylindrical shape, and the inner mesh 52 wound into a cylindrical shape is internally fixed. A number of evenly distributed inner braces 55 are provided, and the outer net 51 is wrapped around the outer side of the inner net 52 to form a cylindrical shape. The two ends of the outer net 51 wound into a tubular shape are respectively fixed with a six-rib support plate 54 and a blind plate 58. The support plate 54 is arranged opposite to the water retaining plate 6, and the inner net 52 is punched with a stainless steel plate and then rolled into an arc-shaped mesh sheet, alternately connected with the U-shaped grooves 53, and welded into a cylindrical structure. The six-rib support plate 54 and the blind plate 58 are respectively welded on both sides of the cylinder body, and the inner support 55 is welded on the inner side of the cylinder body to prevent deformation of the cylinder body. The outer net 54 adopts a stainless steel braided net with a higher mesh number, and is wrapped in the outer side of the inner net 52 . The C-shaped pressing plate 56 is bent into a C-shaped structure by a steel plate of a specific size, and is installed in the U-shaped groove 53 with a fastening screw 57 to compress the outer net 51 so that the outer net 51 stretches flat and is close to the outside of the inner net 52 . The periphery of the C-shaped pressing plate 56 is bent to form circular arc edges and corners, which can effectively avoid scratching the outer net 51. The flow direction of the sewage at the drum assembly 5 is from the outer net 51 to the inner net 52, and the garbage in the sewage is collected by the outer net 52. The net 51 intercepts, the sewage flows into the inner net 52, and flows from the side away from the water retaining plate 6 to the side close to the water retaining plate 6 in the inner net 52, and flows into the second chamber from the six-rib support plate 54 indoor.

The discharge assembly includes a discharge brush 30 arranged on the outside of the drum assembly 5, one end of the discharge brush 30 is in rotation with the water retaining plate 6, and a brush motor 11 is fixedly arranged on the outside of the box body 3, and the brush motor 11 The output end is fixedly connected with the discharge brush 30, the water retaining plate 6 is fixedly provided with a brush bearing seat 29, the brush bearing seat 29 is fixedly provided with a bearing, and the end of the discharge brush 30 is fixed to the inner ring of the bearing. Connection, the side of the box body 3 is provided with a discharge port, and an inclined material guide plate 9 is fixedly installed at the discharge port. One end of the material guide plate 9 is located at the discharge brush 30 in the box body 3, and the other end is located at the discharge brush 30. On the outside of the discharge port, a protective cover 10 is fixedly arranged at the discharge port, and the protective cover 10 is located above the material guide plate, and the intercepted garbage is attached to the outside of the outer net 51 of the drum assembly 5, driven by the rotation of the drum assembly 5 The garbage attached to its surface is transported to the discharge brush 30, and the discharge brush 30 rotates under the drive of the brush motor 11, and contacts the outer net 51 to discharge the garbage to the discharge port, and the garbage passes through the discharge port The material guide plate 9 is discharged to the outside of the equipment, and the solid moisture content is low because there is no backwash water involved in the garbage removal process

The backwash assembly includes a backwash water pump 18 arranged outside the tank body 3, the input end of the backwash water pump 18 communicates with the second chamber 34, and the output end of the backwash water pump 18 communicates with an external flushing device through a valve group 17 21 and an inner flushing device 23, the outer flushing device 21 includes an outer flushing hose 20, a fixed disk 22 is fixedly arranged on the side wall of the box body 3, and the outer flushing hose 20 passes through the fixed disk 22 and the water retaining plate 6 in sequence and Located on the outside of the drum assembly 5 , the outer flushing hose 20 is communicated with several nozzles opposite to the drum assembly 5 , and the inner flushing device 23 is installed through the end of the drum assembly 5 . The inner flushing device 23 includes an inner flushing hose 19, an outer fixing seat 24 is fixedly arranged on the casing 3, and the inner washing hose 19 passes through the outer fixing seat 24, the inner fixing seat 25 and the driven shaft 28 in turn, and the inner washing hose 19 is arranged coaxially with the driven shaft 28, the driven shaft 28 is cylindrical and its inner diameter is larger than the outer diameter of the inner flushing hose, the backwashing water pump 18 uses filtered sewage, and the water inlet of the backwashing water pump 18 is arranged at the water retaining On the outside of the plate 6, a valve group 17 is designed at the water outlet of the water pump to control the outer flushing device 21 and the inner flushing device 23 respectively. The filter is cleaned.

An overflow box 32 is arranged on the water baffle 6, and the two ends of the overflow box 32 communicate with the first chamber 33 and the second chamber 34 respectively, the bottom surface of the overflow box 32 is an inclined surface, and the bottom surface of the overflow box 32 is close to the second chamber The height of the side of the first chamber 33 is higher than the height of the side of the second chamber 34. The side of the water baffle 6 is designed with an overflow box 32. When the clogging of the drum assembly 5 is not cleared in time , allowing sewage to overflow directly to the water outlet side, preventing sewage from overflowing the equipment.

The bottom of the first chamber 33 is connected with the water inlet side emptying port 12, and the bottom of the second chamber 34 is connected with the water outlet side emptying port 8, and the water inlet side emptying port 12 and the water outlet side emptying port 8 are fixed respectively. There are valves for opening or closing to realize the water level in the first chamber 33 and the second chamber 34 .

Sewage flows into the first chamber 33 of the equipment box 3 from the water inlet pipe 1. Due to the interception of the water baffle 6, the sewage can only flow into the drum assembly from the outside of the drum assembly 5 in the first chamber 33. 5, and flows from the inner side of the drum assembly 5 into the second chamber 34, and then flows out from the outlet pipe 15, so the equipment has high processing precision, submerged water, and has high processing capacity; due to the drum The interception of the assembly 5, the fine garbage in the sewage is intercepted on the outside of the drum assembly 5, and the drum assembly 5 rotates, and the intercepted garbage is attached to the outside of the drum assembly 5, and the drum assembly 5 rotates It drives the garbage attached to its surface to move to the unloading assembly. The intercepted suspended solids will not be transported into the filtered sewage with the operation of the equipment if they are not effectively removed, which has high reliability. and the removal rate of suspended solids; the unloading component is in contact with the drum assembly 5 to clean up the garbage and discharge it out of the equipment. Since the garbage is not involved in the backwashing water during the cleaning process, the solid water content is low; through the internal flushing device 23 And the structural design of the outer flushing device 21 can effectively clean the drum assembly 5 and prevent clogging; the setting of the overflow box 32 can effectively control the water level and prevent sewage from overflowing

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention within.

Claims (9)

1. An external inflow filter for sewage treatment is characterized by comprising a box body (3), wherein a water baffle (6) for dividing the interior of the box body (3) into a first chamber (33) and a second chamber (34) is fixedly arranged in the box body, a rotary drum assembly (5) is arranged in the first chamber (33) in a rotating mode, the rotary drum assembly (5) is communicated with the first chamber (33) and the second chamber (34), a water inlet pipe (1) and a water outlet pipe (15) which are respectively communicated with the first chamber (33) and the second chamber (34) are arranged on the outer side of the box body (3), and a discharging assembly is arranged at the position of the rotary drum assembly (5).

2. An external inflow filter for sewage treatment according to claim 1, wherein the water inlet pipe (1) and the water outlet pipe (15) are both positioned at the lower part of the box body (3), a driving motor (14) is arranged above the water inlet pipe (1), a driving shaft (31) is fixedly arranged at one end of the rotary drum assembly (5), the driving shaft (31) penetrates out of the box body (3) and is fixedly connected with the output end of the driving motor (14), a bearing pipe (26) is fixedly arranged in the second chamber (34), an inner fixing seat (25) is fixedly arranged in the middle of the bearing pipe (26), a supporting seat (27) is fixedly arranged on the inner fixing seat (25), a driven shaft (28) is fixedly arranged at the other end of the rotary drum assembly (5), the driven shaft (28) is rotatably arranged in the supporting seat (27), and a back flushing assembly is arranged at the rotary drum assembly (5).

3. An external inflow filter for sewage treatment according to claim 1, wherein the rotary drum assembly (5) comprises an external net (51), an internal net (52) and a U-shaped groove (53), the internal net (52) is arc-shaped and is alternately connected with the U-shaped groove (53) to be fixed into a cylinder, a plurality of uniformly distributed internal supports (55) are fixedly arranged inside the internal net (52) which is wound into a cylinder, the external net (51) is wrapped outside the internal net (52) to be wound into a cylinder, six rib supporting plates (54) and blind plates (58) are respectively fixedly arranged at two ends of the external net (51) which is wound into a cylinder, and the six rib supporting plates (54) are oppositely arranged with the water baffle (6).

4. An external inflow filter for sewage treatment according to claim 1, wherein the discharging assembly comprises a discharging brush (30) arranged on the outer side of the rotary drum assembly (5), one end of the discharging brush (30) is in running fit with the water baffle (6), a brush motor (11) is fixedly arranged on the outer side of the box body (3), and the output end of the brush motor (11) is fixedly connected with the discharging brush (30).

5. The external inflow filter for sewage treatment according to claim 4, wherein a brush bearing seat (29) is fixedly arranged on the water baffle (6), a bearing is fixedly arranged in the brush bearing seat (29), the end part of the discharge brush (30) is fixedly connected with the inner ring of the bearing, a discharge opening is formed in the side surface of the box body (3), an inclined guide plate (9) is fixedly arranged at the discharge opening, one end of the guide plate (9) is positioned at the discharge brush (30) in the box body (3), the other end of the guide plate is positioned at the outer side of the discharge opening, a protective cover (10) is fixedly arranged at the discharge opening, and the protective cover (10) is positioned above the guide plate.

6. An external inflow filter for sewage treatment according to claim 2, wherein the back flushing assembly comprises a back flushing water pump (18) arranged outside the tank body (3), an input end of the back flushing water pump (18) is communicated with the second chamber (34), an output end of the back flushing water pump (18) is communicated with an external flushing device (21) and an internal flushing device (23) through a valve group (17), the external flushing device (21) comprises an external flushing hose (20), a fixed disc (22) is fixedly arranged on the side wall of the tank body (3), the external flushing hose (20) sequentially penetrates through the fixed disc (22) and the water baffle (6) and is positioned outside the drum assembly (5), a plurality of nozzles opposite to the drum assembly (5) are arranged on the external flushing hose (20), and the internal flushing device (23) is arranged through the end part of the drum assembly (5).

7. An external inflow filter for sewage treatment according to claim 6, wherein the internal flushing device (23) comprises an internal flushing hose (19), an external fixing seat (24) is fixedly arranged on the box body (3), the internal flushing hose (19) sequentially penetrates through the external fixing seat (24), the internal fixing seat (25) and a driven shaft (28), the internal flushing hose (19) and the driven shaft (28) are coaxially arranged, and the driven shaft (28) is cylindrical and has an inner diameter larger than the outer diameter of the internal flushing hose.

8. An external inflow filter for sewage treatment according to claim 1, wherein the water baffle (6) is provided with an overflow box (32), two ends of the overflow box (32) are respectively communicated with the first chamber (33) and the second chamber (34), the bottom surface of the overflow box (32) is an inclined surface, and the position of the bottom surface of the overflow box (32) close to one side of the first chamber (33) is higher than the position of the bottom surface close to one side of the second chamber (34).

9. An external inflow filter for sewage treatment according to claim 1, wherein the first chamber (33) is provided with a water inlet side drain (12) in bottom communication and the second chamber (34) is provided with a water outlet side drain (8) in bottom communication.

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