Wastewater sludge filter pressing device for improving waste SCR (Selective Catalytic Reduction) treatment process

Abstract

The utility model relates to the technical field of SCR (Selective Catalytic Reduction) treatment devices, and discloses a wastewater sludge filter pressing device for improving a waste SCR treatment process, which comprises a reaction tank, liquid mixed in the reaction tank is conveyed into a settling pond through a second conveying pipeline, the settling pond drives settled liquid to be conveyed into a filter pressing machine body through a sludge pump, and the filter pressing machine body is connected with the reaction tank through a second conveying pipeline. Brackets are fixedly connected to two sides of the upper part of the filter press body. According to the wastewater sludge filter pressing device for improving the waste SCR treatment process, when impurities are discharged through equipment, hydraulic equipment is started to drive a hydraulic rod to reduce pressure on a filter plate, a screw rod is started to push a transverse rail to move towards the inner side and extrude an inclined rod, the inclined rod pushes the filter plate to move towards the two sides after bearing pressure, meanwhile, a second sliding block moves in the transverse rail, and the second sliding block moves in the transverse rail; under the auxiliary action of elasticity of the springs, each group of filter plates can be driven to be synchronously opened, and meanwhile, impurities are sequentially taken out from the space between the two groups of filter plates, so that the convenience during impurity cleaning is provided.

Description

Technical Field

[0001] This utility model relates to the technical field of SCR treatment devices, specifically to a wastewater and sludge dewatering device for improving the waste SCR treatment process. Background Technology

[0002] With rapid industrialization and urbanization, wastewater discharge has become an increasingly serious problem. Wastewater not only pollutes the environment but also threatens environmental health and ecosystems. Therefore, environmental wastewater treatment has become an important issue. Industrial wastewater depressurization is a crucial step in wastewater treatment, and rapidly increasing filtration speed is key for environmentally conscious companies to improve production capacity.

[0003] Currently, methods to improve filtration speed include polyacrylamide flocculation and sedimentation, polyaluminum chloride precipitation, and polyferric sulfate precipitation. However, these methods are costly and have difficulties in subsequent treatment. In particular, the filtration speed is even more difficult in the treatment of waste SCR denitrification catalyst wastewater. The reason is that there are a large amount of soluble titanium, iron, silicon, aluminum, etc. in the treatment process. Direct pressure filtration or the addition of conventional precipitants cannot form pond sludge, resulting in high water content, slow filtration speed, and clogging of filter cloth solution, which affects the wastewater pressure filtration efficiency. Therefore, we propose a wastewater sludge pressure filtration device to improve the waste SCR treatment process. Utility Model Content

[0004] To address the shortcomings of existing wastewater and sludge dewatering devices for waste SCR treatment, this invention provides an improved wastewater and sludge dewatering device for waste SCR treatment. This device features mixed filtration of wastewater in a reaction tank, preliminary treatment via acid-base neutralization, and simultaneous transport of the treated liquid to a sedimentation tank for further filtration. The filtered sludge is then transported to the filter press body for further treatment, ensuring thorough filtration of the wastewater and resolving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an improved wastewater sludge dewatering device for waste SCR treatment, comprising a reaction tank, wherein the liquid mixed inside the reaction tank is transported to the interior of a sedimentation tank through a second conveying pipe, and the sedimentation tank is driven by a sludge pump to transport the settled liquid to the interior of the filter press body, wherein supports are fixedly connected to both sides of the upper part of the filter press body, and a filter plate is installed on the inner side of the supports through a first slider, wherein a filter screen for filtering sludge is fixedly connected inside the filter plate, and cleaning pipes for driving liquid to be transported to the interior of the filter plate and cleaning are installed on both sides of the upper part of the filter plate, and outlet pipes for discharging liquid are installed on both sides of the lower part of the filter plate, and transverse tracks are installed on both sides inside the filter press body.

[0006] Preferably, a wastewater inlet and a reagent inlet are fixedly connected to one side of the reaction tank, and a sludge outlet and a supernatant overflow outlet are installed inside the sedimentation tank. The sludge outlet is connected to the sludge pump and the filter press body through a first conveying pipe.

[0007] Preferably, a feed pipe is fixedly connected to the left side of the filter press body, and a hydraulic device is installed on the other side of the filter press body. A hydraulic rod is installed inside the hydraulic device. The first conveying pipe is connected to the feed pipe, and the other side of the feed pipe extends into the interior of the filter screen.

[0008] Preferably, a spring is installed between the two sets of the first sliders, and a roller is installed inside the lower end of the first slider, the roller being in contact with the bracket.

[0009] Preferably, a second slider is movably sleeved inside the transverse track, and a set of inclined rods is movably installed on each side of the front end of the second slider. The ends of the two sets of inclined rods are respectively installed on the outside of the two sets of filter plates through hinges.

[0010] Preferably, a screw is threaded onto the lower end of the transverse track, and the screw is installed inside the filter press body.

[0011] Preferably, the filter screen has a circular hole in the middle, which is connected to the feed pipe, and filter paper is installed on the outside of the filter screen.

[0012] Compared with existing wastewater and sludge dewatering devices for improving waste SCR treatment processes, this utility model has the following advantages:

[0013] 1. This improved wastewater sludge filter press device for waste SCR treatment, when discharging impurities through the equipment, activates the hydraulic equipment, drives the hydraulic rod to reduce the pressure on the filter plates, starts the screw, pushes the transverse track to move inward, squeezes the inclined rod, and after the inclined rod is under pressure, pushes the filter plates to move to both sides. At the same time, the second slider moves inside the transverse track, and with the assistance of the spring elasticity, it can drive each set of filter plates to open synchronously, and remove impurities from between the two sets of filter plates in sequence, thus providing convenience for impurity cleaning.

[0014] 2. This improved wastewater and sludge filter press device for waste SCR treatment mixes and filters wastewater in a reaction tank, performs preliminary treatment through acid-base neutralization, and simultaneously transports the treated liquid to the interior of a sedimentation tank. The sedimentation tank drives the wastewater to be filtered, and the filtered sludge is transported to the interior of the filter press body for further treatment of the sludge through filter pressing, ensuring that the wastewater is filtered and improving its filtration efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the SCR processing structure of this utility model;

[0016] Figure 2 This is a partially enlarged structural diagram of the filter press equipment of this utility model;

[0017] Figure 3 This is a side view of the filter press device of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the filter press equipment of this utility model;

[0019] Figure 5 This is a partially enlarged structural diagram of the filter plate of this utility model.

[0020] In the diagram: 1. Reaction tank; 2. Wastewater inlet; 3. Reagent inlet; 4. Sedimentation tank; 5. Sludge pump; 6. Filter press body; 7. Support frame; 8. Filter plate; 9. Feed pipe; 10. Hydraulic equipment; 11. Hydraulic rod; 12. First slider; 13. Spring; 14. Filter screen; 15. Cleaning pipe; 16. Water outlet pipe; 17. Horizontal track; 18. Screw; 19. Second slider; 20. Diagonal bar; 21. Roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A wastewater sludge dewatering device for improving the waste SCR treatment process includes a reaction tank 1. The liquid mixed inside the reaction tank 1 is transported to the interior of a sedimentation tank 4 through a second conveying pipe. The sedimentation tank 4 causes the sludge to settle. The sedimentation tank 4 then uses a sludge pump 5 to transport the settled liquid to the interior of a filter press body 6. Supports 7 are fixedly connected to the upper two sides of the filter press body 6. The supports 7 adjust the position of a first slider 12. Filter plates 8 are installed on the inner side of the supports 7 via the first slider 12. After the filter plates 8 are pressed together, they can cause the sludge to undergo dewatering. A filter screen 14 for filtering the sludge is fixedly connected inside the filter plates 8. Cleaning pipes 15 are installed on the upper two sides of the filter plates 8 to transport liquid to the interior of the filter plates 8 for cleaning. The cleaning pipes 15 use cleaning liquid to rinse the filter screen 14. Water outlet pipes 16 are installed on the lower two sides of the filter plates 8 to discharge the liquid generated after dewatering. Horizontal rails 17 are installed on the inner two sides of the filter press body 6.

[0023] Please see Figure 1 The reaction tank 1 is fixedly connected to a wastewater inlet 2 and a reagent inlet 3 on one side. The sedimentation tank 4 is equipped with a sludge outlet and a supernatant overflow outlet. The sludge outlet is connected to the sludge pump 5 and the filter press body 6 through a first conveying pipe. The wastewater inlet 2 and the reagent inlet 3 are installed on the outside of the reaction tank 1. The reagent inlet 3 drives the wastewater to be transported into the reaction tank 1. At the same time, the reagent inlet 3 drives the reagent to be added into the reaction tank 1. The wastewater can be mixed inside the reaction tank 1. The mixed liquid is then transported to the sedimentation tank 4. The sedimentation tank 4 is equipped with a sludge outlet and a supernatant overflow outlet. After the wastewater settles inside the sedimentation tank 4, the settled liquid is discharged through the supernatant overflow outlet. The sludge is output through the sludge outlet and transported to the filter press body 6 through the first conveying pipe. The sludge pump 5 transports the pushable sludge.

[0024] Please see Figure 4 A feed pipe 9 is fixedly connected to the left side of the filter press body 6. A hydraulic device 10 is installed on the other side of the filter press body 6. A hydraulic rod 11 is installed inside the hydraulic device 10. The first conveying pipe is connected to the feed pipe 9. The other side of the feed pipe 9 extends into the interior of the filter screen 14. The feed pipe 9 is installed on the left side of the filter press body 6 and is connected to the first conveying pipe installed on one side of the sedimentation tank 4. That is, the sludge can be transported to the interior of the filter screen 14 through the first conveying pipe and the feed pipe 9. At the same time, the hydraulic device 10 is started. The hydraulic device 10 drives the hydraulic rod 11 to apply pressure to the filter plate 8. Then the filter plate 8 is kept in a pressed state. At the same time, the filter screen 14 can perform filter pressing treatment on the sludge.

[0025] Please see Figure 5A spring 13 is installed between the two sets of first sliders 12. A roller 21 is installed inside the lower end of the first slider 12. The roller 21 contacts the bracket 7. By installing the spring 13 between the two sets of first sliders 12, when the hydraulic rod 11 is moved to the right, the filter plate 8 reduces the limited pressure, and the spring 13 can push the filter plate 8 to separate, so as to remove the impurities generated by the pressure filtration. In addition, the roller 21 is installed inside the first slider 12 and contacts the bracket 7. When the first slider 12 is moved outside the bracket 7, the frictional resistance during its movement can be reduced, and the convenience of moving the filter plate 8 can be improved.

[0026] Please see Figure 2 The transverse track 17 is internally fitted with a second slider 19. A set of inclined rods 20 are movably installed on each side of the front end of the second slider 19. The ends of the two sets of inclined rods 20 are respectively installed on the outside of the two sets of filter plates 8 through hinges. When the transverse track 17 is pushed to move inward, the transverse track 17 controls the distance between the second slider 19 and the filter plate 8 to adjust. At the same time, the second slider 19 pushes the inclined rods 20 to move to both sides. Then the inclined rods 20 spread the two sets of filter plates 8 apart to avoid the two sets of filter plates 8 being pressed tightly together, which would make it impossible to control the separation of the filter plates 8. At the same time, it ensures that the distance between each pair of filter plates 8 remains the same.

[0027] Please see Figure 2 A screw 18 is threaded onto the lower end of the transverse track 17. The screw 18 is installed inside the filter press body 6. By rotating the screw 18, the position of the transverse track 17 is adjusted, thereby maintaining synchronization when controlling the adjustment of the distance between the transverse track 17 and the filter plate 8.

[0028] Please see Figure 4 The filter screen 14 has a circular hole in the middle, which is connected to the feed pipe 9. Filter paper is installed on the outside of the filter screen 14. The sludge is transported to the inside of the filter plate 8 through the opening and closing holes inside the filter screen 14. It can be transferred to the inside of different filter plates 8 in sequence through the circular hole, which ensures that the sludge is transported more conveniently.

[0029] Working principle: During use, wastewater is transported to the interior of reaction tank 1 through wastewater inlet 2 and reagent inlet 3. Reaction tank 1 mixes the wastewater and reagents. The mixture is then transported to the interior of sedimentation tank 4 through the second conveying pipe. Sedimentation tank 4 settles the wastewater and discharges the liquid. Sludge is transported to the interior of feed pipe 9 through sludge pump 5. Feed pipe 9 transports the sludge between the two sets of filter screens 14. At the same time, hydraulic device 10 is activated, which moves hydraulic rod 11 to one side, thus squeezing the filter plates 8 and compressing the sludge. When discharge is required, hydraulic rod 11 is moved to the right and screw 18 is activated. Screw 18 moves transverse track 17 inward, and second slider 19 can move inside transverse track 17. Second slider 19 applies pressure to inclined rod 20, which opens the two sets of filter plates 8. The compressed sludge can then be discharged between the two sets of filter plates 8, improving sludge discharge efficiency.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved waste SCR disposal process waste water sludge filter press device, comprising a reaction tank (1), the mixed liquid inside the reaction tank (1) is transported to the inside of a sedimentation tank (4) through a second feeding pipe, and the settled liquid is transported to the inside of a filter press body (6) through a sludge pump (5), characterized in that: The both sides of upper portion of filter press body (6) are fixedly connected with support (7), the inner side of support (7) is installed with filter plate (8) through first sliding block (12), the inner portion of filter plate (8) is fixedly connected with filter screen (14) for filtering sludge, the both sides of upper portion of filter plate (8) are installed with cleaning pipeline (15) for driving liquid to be transported to the inside of filter plate (8) and to be cleaned, the both sides of lower portion of filter plate (8) are installed with water outlet pipeline (16) for discharging liquid, the both sides of inside of filter press body (6) are installed with transverse rail (17).

2. The improved waste SCR disposal process waste water sludge filter press apparatus as claimed in claim 1 wherein: The side of reaction tank (1) is fixedly connected with wastewater adding port (2) and reagent adding port (3), the inside of sedimentation tank (4) is installed with sludge discharge port and supernatant overflow port, the outside of sludge discharge port is connected with sludge pump (5) and filter press body (6) through first conveying pipeline.

3. The improved waste SCR disposal process wastewater sludge filter press apparatus of claim 2, wherein: The left side of filter press body (6) is fixedly connected with feeding pipe (9), the other side of filter press body (6) is installed with hydraulic equipment (10), the inside of hydraulic equipment (10) is installed with hydraulic rod (11), the first conveying pipeline is connected with feeding pipe (9), the other side of feeding pipe (9) extends to the inside of filter screen (14).

4. The improved waste SCR disposal process wastewater sludge filter press apparatus of claim 1, wherein: The spring (13) is installed between the two groups of first sliding blocks (12), the inside of lower end of first sliding block (12) is installed with roller (21), the roller (21) is in contact with support (7).

5. The improved waste SCR disposal process wastewater sludge filter press apparatus of claim 1, wherein: The inside of transverse rail (17) movably sleeved with second sliding block (19), the both sides of front end of second sliding block (19) are movably installed with a group of inclined rods (20), the end portions of two groups of inclined rods (20) are respectively installed on the outside of two groups of filter plates (8) through hinges.

6. The improved waste SCR disposal process wastewater sludge filter press apparatus of claim 1, wherein: The lower end of transverse rail (17) is screwedly installed with screw rod (18), the screw rod (18) is installed in the inside of filter press body (6).

7. The improved waste SCR disposal process wastewater sludge filter press apparatus of claim 1, wherein: The middle portion of filter screen (14) is provided with circular hole, the circular hole is communicated with feeding pipe (9), the outside of filter screen (14) is installed with filter paper.

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