Sewage filtering mechanism for filter pressing dehydrator

Abstract

The utility model discloses a sewage filtering mechanism for a filter pressing dehydrator, and relates to the technical field of sewage filtering mechanisms, the sewage filtering mechanism comprises a dehydrator body, an extrusion assembly is arranged at the upper end of the interior of the dehydrator body, a shaking assembly is arranged at the lower end of the interior of the dehydrator body, and the shaking assembly comprises a left U-shaped groove body and a right U-shaped groove body which are oppositely arranged; a left sliding plate is slidably connected to the inner surface of the left U-shaped groove, a right sliding plate is slidably connected to the inner surface of the right U-shaped groove, an electric cylinder is fixedly connected to the inner side wall of the left U-shaped groove, a piston rod is installed at the output end of the electric cylinder, and the end, away from the electric cylinder, of the piston rod is fixedly connected with the left sliding plate. A filtering assembly is mounted between the close side surfaces of the left sliding plate and the right sliding plate; through cooperation of the structure, anti-blocking operation can be carried out while extruded sewage is filtered, and the filtering effect is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage filtration mechanisms, specifically a sewage filtration mechanism for a filter press dewatering machine. Background Technology

[0002] Dewatering machines are widely used in the sludge dewatering process of sewage treatment. When the dewatering machine is working, the sludge enters from the feed inlet. After entering the machine, the sludge moves forward along the axis under the push of the blades. During the forward movement, the sludge is subjected to the action of the changing screw pitch, which forms a huge squeezing force, causing the sludge to be mechanically dewatered under the action of external force. The water is discharged through the screen at the outlet, and the dewatered sludge is discharged at the discharge outlet.

[0003] Utility model CN211734146U discloses a wastewater filtration mechanism for a spiral filter press, comprising a dewatering machine body, an extrusion structure, a feed inlet, and a motor. The extrusion structure is fixedly installed inside the dewatering machine body. A feed inlet is located at the top right side of the dewatering machine body. A motor is fixedly installed inside the right side of the dewatering machine body, and the output end of the motor is fixedly connected to the right side of a screw. A slider is sleeved on the surface of the screw, and a cleaning brush is fixedly attached to the top of the slider. A stirring rod is fixedly connected to the bottom of the slider, and a limit rod is movably connected to the bottom surface of the slider. A filter screen is located below the extrusion structure, and a first connecting rod is hinged to the left side of the filter screen. A second connecting rod is hinged to the top of the first connecting rod, and a push rod is hinged to the left side of the second connecting rod. A sliding rod is sleeved on the left side surface of the screw. A discharge port is opened at the bottom left side of the dewatering machine body, and a water outlet is located at the bottom of the dewatering machine body.

[0004] In the process of developing this application, the following problems were found with this technology: The above patent documents mainly focus on anti-clogging settings for the water outlet and the material outlet. However, in the patent structure, after the wastewater is filtered by the filter screen, some impurities will inevitably remain on the filter screen. If there are too many impurities on the filter screen, it may affect the filtration effect.

[0005] Therefore, a wastewater filtration mechanism for a filter press dewatering machine is proposed. Utility Model Content

[0006] The purpose of this utility model is to reduce dust in the crushed waste concrete aggregate, reduce the dust raised during the later discharge, and improve the quality of the surrounding working environment. This application provides a wastewater filtration mechanism for a filter press dewatering machine.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A wastewater filtration mechanism for a filter press dewatering machine includes a dewatering machine body. A squeezing assembly is located at the upper interior of the dewatering machine body, and a swaying assembly is located at the lower interior of the dewatering machine body. The swaying assembly includes a left U-shaped trough and a right U-shaped trough arranged opposite each other. The left and right U-shaped troughs are fixedly connected to the lower inner wall of the dewatering machine body. A left sliding plate is slidably connected to the inner surface of the left U-shaped trough, and a right sliding plate is slidably connected to the inner surface of the right U-shaped trough. An electric cylinder is fixedly connected to the inner wall of the left U-shaped trough. A piston rod is installed at the output end of the electric cylinder. The end of the piston rod away from the electric cylinder is fixedly connected to the left sliding plate. An L-shaped limiting plate is fixedly connected to the side of the right sliding plate closest to the interior of the right U-shaped trough. A limiting strip is fixedly connected to the inner wall of the top of the right U-shaped trough. The upper outer surface of the L-shaped limiting plate engages with the limiting strip. A filtration assembly is installed between the adjacent sides of the left and right sliding plates.

[0009] The filter assembly includes a first filter screen, a second filter screen, and an activated carbon adsorption layer, and the first filter screen, the second filter screen, and the activated carbon adsorption layer are detachably installed from top to bottom between the adjacent sides of the left and right sliding plates.

[0010] Furthermore, a feed inlet is installed on the upper surface of the dehydrator body.

[0011] Furthermore, the bottom internal cavity of the dehydrator body is connected to a drain outlet, and a valve is provided on the lower outer surface of the drain outlet.

[0012] Furthermore, the inner bottom surface of the dewatering machine body slopes from all sides toward the upper opening of the drain outlet.

[0013] Furthermore, support legs are fixedly connected to both ends of the lower surface of the dehydrator body.

[0014] Furthermore, a sealing plate is installed on the front side of the dehydrator body near the filter assembly, and a handle is fixedly connected to the outer surface of the sealing plate.

[0015] Furthermore, the first filter screen has a mesh size of 250, and the second filter screen has a mesh size of 300.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. In this utility model, after the sewage containing sludge enters the dewatering machine body, the sewage containing sludge is squeezed by the extrusion component. The squeezed sewage can fall downwards onto the upper surface of the filter component, which can then filter the water. During the filtration process, the electric cylinder can be activated to make the piston rod drive the left slide plate to move laterally back and forth, thereby causing the filter component to sway laterally. This helps to prevent impurities from clogging filter screens one and two, thus affecting their filtration effect. Through the combination of the above structures, anti-clogging operation can be performed while filtering the squeezed sewage, improving the filtration effect.

[0018] 2. In this utility model, while the electric cylinder and piston rod drive the left slide plate, filter assembly and right slide plate to swing laterally, the L-shaped limiting plate and limiting strip will restrict their range of motion, preventing the right slide plate from sliding out of the right U-shaped trough and also preventing the left slide plate from sliding out of the left U-shaped trough, thereby ensuring the filtration effect on the squeezed sewage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0022] Figure 4 In this utility model Figure 2 Enlarged view of point B.

[0023] The diagram shows the following components: 1-Dehydrator body, 2-Extrusion assembly, 3-Shaking assembly, 4-Filter assembly, 11-Feed inlet, 12-Support leg, 13-Drain outlet, 14-Valve, 15-Sealing plate, 16-Handle, 31-Left U-shaped trough, 32-Left sliding plate, 33-Electric cylinder, 34-Piston rod, 35-Right U-shaped trough, 36-Right sliding plate, 37-Limiting strip, 38-L-shaped limiting plate, 41-Filter screen one, 42-Filter screen two, 43-Activated carbon adsorption layer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0025] Reference Figures 1-4 A wastewater filtration mechanism for a filter press dewatering machine includes a dewatering machine body 1, with support legs 12 fixedly connected to both ends of the lower surface of the dewatering machine body 1; specifically, the support legs 12 can support the dewatering machine body 1; a squeezing assembly 2 is provided at the upper end of the interior of the dewatering machine body 1, and a shaking assembly 3 is provided at the lower end of the interior of the dewatering machine body 1. The shaking assembly 3 includes a left U-shaped groove 31 and a right U-shaped groove 35 arranged opposite to each other. The left U-shaped groove 31 and the right U-shaped groove 35 are fixedly connected to the inner wall of the lower end of the dewatering machine body 1, and the inner surface of the left U-shaped groove 31... A left sliding plate 32 is slidably connected to the inner surface of the right U-shaped trough 35, and a right sliding plate 36 is slidably connected to the inner surface of the right U-shaped trough 35. A filter assembly 4 is installed between the sides of the left sliding plate 32 and the right sliding plate 36 that are close to each other. A feed inlet 11 is installed on the upper surface of the dewatering machine body 1. Specifically, when using the equipment, an external power supply is first connected. After the sludge-laden wastewater enters the dewatering machine body 1 through the feed inlet 11, the sludge-laden wastewater is squeezed by the squeezing assembly 2. The squeezed wastewater can fall downwards onto the upper surface of the filter assembly 4, and the water can be filtered by the filter assembly 4.

[0026] Reference Figures 1-4 An electric cylinder 33 is fixedly connected to the inner wall of the left U-shaped trough 31. A piston rod 34 is installed at the output end of the electric cylinder 33, and the end of the piston rod 34 away from the electric cylinder 33 is fixedly connected to the left slide plate 32. The filter assembly 4 includes a filter screen 41, a filter screen 42, and an activated carbon adsorption layer 43. The filter screen 41, the filter screen 42, and the activated carbon adsorption layer 43 are detachably installed from top to bottom between the left slide plate 32 and the right slide plate 36 on the side closest to each other. The filter screen 41 has a mesh size of 250, and the filter screen 42 has a mesh size of 300. Specifically, during the filtration process, the electric cylinder 33 can be activated to make the piston rod 34 drive the left slide plate 32 to move laterally back and forth, thereby causing the filter assembly 4 to sway laterally, so as to avoid the impurities being filtered clogging the filter screens 41 and 42 and affecting their filtration effect. Through the cooperation of the above structures, the anti-clogging operation can be performed while filtering the squeezed sewage, thereby improving the filtration effect.

[0027] Reference Figures 1-4An L-shaped limiting plate 38 is fixedly connected to one side of the right slide plate 36 near the inside of the right U-shaped trough 35. A limiting strip 37 is fixedly connected to the inner side wall of the top of the right U-shaped trough 35. The upper outer surface of the L-shaped limiting plate 38 is engaged with the limiting strip 37. Specifically, while the electric cylinder 33 and piston rod 34 drive the left slide plate 32, the filter assembly 4 and the right slide plate 36 to swing laterally, the L-shaped limiting plate 38 and the limiting strip 37 will restrict their range of motion, preventing the right slide plate 36 from sliding out of the right U-shaped trough 35, and also preventing the left slide plate 32 from sliding out of the left U-shaped trough 31, thereby ensuring the filtration effect of the squeezed sewage.

[0028] Reference Figures 1-4 The bottom cavity of the dehydrator body 1 is connected to a drain outlet 13, and a valve 14 is provided on the lower outer surface of the drain outlet 13. The inner bottom surface of the dehydrator body 1 slopes from all sides towards the upper opening of the drain outlet 13. Specifically, opening the valve 14 allows the filtered water to be discharged from the drain outlet 13. A sealing plate 15 is installed on the front side of the dehydrator body 1 near the filter assembly 4, and a handle 16 is fixedly connected to the outer surface of the sealing plate 15. Specifically, the sealing plate 15 can be opened using the handle 16 to clean and replace the filter screen 41, the support leg 12, and the activated carbon adsorption layer 43.

[0029] The implementation principle of an embodiment of a wastewater filtration mechanism for a filter press dewatering machine according to this application is as follows:

[0030] When using this equipment, first connect an external power source. After the sludge-laden wastewater enters the dewatering machine body 1 through the feed inlet 11, the sludge-laden wastewater is squeezed by the extrusion component 2. The squeezed wastewater falls downwards onto the upper surface of the filter component 4, which filters the water. During the filtration process, the electric cylinder 33 can be activated to make the piston rod 34 drive the left slide plate 32 to move laterally back and forth, thereby causing the filter component 4 to sway laterally. This helps to prevent impurities from clogging the filter screens 41 and 42, thus affecting their filtration effect. Through the combination of the above structures, anti-clogging operation can be performed while filtering the squeezed wastewater, improving the filtration effect.

[0031] On the other hand, while the electric cylinder 33 and piston rod 34 drive the left slide plate 32, filter assembly 4 and right slide plate 36 to sway laterally, the L-shaped limiting plate 38 and limiting strip 37 restrict their range of motion, preventing the right slide plate 36 from sliding out of the right U-shaped trough 35, and also preventing the left slide plate 32 from sliding out of the left U-shaped trough 31, thereby ensuring the filtration effect on the squeezed sewage.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wastewater filtration mechanism for a filter press dewatering machine, comprising a dewatering machine body (1), characterized in that: The upper part of the dehydrator body (1) is provided with a squeezing component (2), and the lower part of the dehydrator body (1) is provided with a shaking component (3). The shaking component (3) includes a left U-shaped groove (31) and a right U-shaped groove (35) arranged opposite to each other. The left U-shaped groove (31) and the right U-shaped groove (35) are fixedly connected to the inner wall of the lower end of the dehydrator body (1). A left sliding plate (32) is slidably connected to the inner surface of the left U-shaped groove (31), and a right sliding plate (36) is slidably connected to the inner surface of the right U-shaped groove (35). An electric motor is fixedly connected to the inner wall of the left U-shaped groove (31). A piston rod (34) is installed at the output end of the electric cylinder (33). The end of the piston rod (34) away from the electric cylinder (33) is fixedly connected to the left slide plate (32). An L-shaped limiting plate (38) is fixedly connected to one side of the right slide plate (36) near the inside of the right U-shaped groove (35). A limiting strip (37) is fixedly connected to the inner side wall of the top of the right U-shaped groove (35). The upper outer surface of the L-shaped limiting plate (38) is engaged with the limiting strip (37). A filter assembly (4) is installed between the sides of the left slide plate (32) and the right slide plate (36) that are close to each other. The filter assembly (4) includes a filter screen one (41), a filter screen two (42) and an activated carbon adsorption layer (43), and the filter screen one (41), the filter screen two (42) and the activated carbon adsorption layer (43) are detachably installed from top to bottom between the left slide plate (32) and the right slide plate (36) on the side that are close to each other.

2. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 1, characterized in that: The upper surface of the dehydrator body (1) is equipped with a feed inlet (11).

3. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 1, characterized in that: The bottom internal cavity of the dehydrator body (1) is connected to a drain outlet (13), and a valve (14) is provided on the lower outer surface of the drain outlet (13).

4. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 3, characterized in that: The inner bottom surface of the dehydrator body (1) slopes from all sides toward the upper opening of the drain outlet (13).

5. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 1, characterized in that: Support legs (12) are fixedly connected to both ends of the lower surface of the dehydrator body (1).

6. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 1, characterized in that: A sealing plate (15) is installed on the front side of the dehydrator body (1) near the filter assembly (4), and a handle (16) is fixedly connected to the outer surface of the sealing plate (15).

7. The wastewater filtration mechanism for a filter press dewatering machine as described in claim 1, characterized in that: The first filter screen (41) has a mesh size of 250, and the second filter screen (42) has a mesh size of 300.

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