Municipal water supply and drainage sewage pretreatment device

Abstract

The utility model relates to the field of sewage treatment, and discloses a municipal water supply and drainage sewage pretreatment device which comprises a water tank, a first motor is fixedly connected to the upper side of the water tank, a scraper system is fixedly connected to the output end of the first motor, a cleaning assembly is installed on the front side of the water tank, and an anti-blocking assembly is installed in the water tank. The cleaning assembly comprises a cam and a shell, the interior of the cam is fixedly connected to the output end of the first motor, the rear side of the shell is fixedly connected to the front side of the water tank, a plurality of springs are fixedly connected to the inner bottom wall of the shell, and pistons are fixedly connected between the top ends of the springs. According to the utility model, the motor I drives the cam to rotate, the pressing rod is shifted to enable the piston to compress the spring, and the one-way valve is matched to convey treated water in the water tank into the spray head through the conveying pipe and the output pipe and spray the treated water onto a scraper on the inner side of the scraper system, so that impurities attached to the scraper are flushed into the pollution discharge bin; impurities are prevented from entering water again.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sewage treatment especially relates to a municipal water supply and drainage sewage pretreatment device. BACKGROUND

[0002] Sewage pretreatment refers to the preliminary treatment of sewage through physical, chemical or biological methods to remove solid impurities, harmful substances and pollutants in it, so as to reduce the burden of subsequent treatment, improve water quality, and common pretreatment methods include grille filtration, sedimentation tank, air flotation, adjusting tank, etc. These methods can effectively remove large particles of suspended solids, oil, dregs, etc. so that the sewage is more stable and efficient when entering the subsequent treatment stage, meeting environmental protection requirements. Pretreatment is a crucial step in the sewage treatment process, which ensures that the water quality meets the discharge standard.

[0003] The gas capacity type air flotation machine is a device commonly used in water treatment, which dissolves gas into water through a gas dissolving system, then forms small bubbles, the bubbles combine with suspended solids in water to drive them to float to the water surface, thereby realizing solid-liquid separation. The device has simple structure and can efficiently remove oil, suspended solids and organic matter in water. The gas capacity type air flotation machine is commonly used in the fields of sewage treatment, wastewater recovery and water quality purification, and is especially suitable for the treatment of oily sewage and high suspended solids.

[0004] The gas capacity type air flotation machine can effectively improve the quality of water by attaching small bubbles to suspended impurities to make the impurities float on the water surface, and then scraping the impurities into the sewage bin by the scraper and discharging them. However, in the traditional gas capacity type air flotation machine, the scraper will also be contaminated with some impurities after scraping the impurities into the sewage bin. These impurities will re-enter the water with the movement of the scraper and cannot be completely removed. Therefore, a municipal water supply and drainage sewage pretreatment device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a municipal water supply and drainage sewage pretreatment device, which aims to improve the problem that in the traditional gas capacity type air flotation machine, the scraper will also be contaminated with some impurities after scraping the impurities into the sewage bin. These impurities will re-enter the water with the movement of the scraper and cannot be completely removed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a municipal water supply and drainage sewage pretreatment device, comprising a water tank, a motor one is fixedly connected to the upper side of the water tank, a scraper system is fixedly connected to the output end of the motor one, a cleaning assembly is installed on the front side of the water tank, and a anti-blocking assembly is installed inside the water tank.

[0007] The cleaning assembly includes a cam and a shell, the cam is fixedly connected to an output end of the motor, the shell is fixedly connected to the front side of the sink, a plurality of springs are fixedly connected to the inner bottom wall of the shell, a piston is fixedly connected between the top ends of the plurality of springs, a pressure rod is fixedly connected to the top of the piston, a conveying pipe is fixedly connected to the right side of the shell, an output pipe is fixedly connected to the front side of the shell, a spray head is fixedly connected to the output pipe, and one-way valves are fixedly connected to the outside of the conveying pipe and the output pipe.

[0008] As a further description of the above technical solutions:

[0009] The anti-blocking assembly includes a second motor, the second motor is fixedly connected to the front side of the sink, a disc is fixedly connected to the output end of the second motor, a sliding frame is fixedly connected to the left side of the disc, a sliding rod is fixedly connected to the rear side of the sliding frame, a fixed plate is fixedly connected to the rear end of the sliding rod, two limiting rods are slidingly connected to the inside of the fixed plate, and three push rods are fixedly connected to the front side of the limiting rods.

[0010] As a further description of the above technical solutions:

[0011] The scraper system is externally mounted on the top of the sink, and the spray head is fixedly connected to the top of the sink.

[0012] As a further description of the above technical solutions:

[0013] The piston is slidingly connected to the inner wall of the shell, and the pressure rod is fixedly connected to the inside of the sink.

[0014] As a further description of the above technical solutions:

[0015] The cam and the pressure rod abut, and the right end of the conveying pipe is sleeved in the right side of the sink.

[0016] As a further description of the above technical solutions:

[0017] The sliding rod is slidingly connected to the inside of the sink, and the fixed plate is slidingly connected to the inside of the sink.

[0018] As a further description of the above technical solutions:

[0019] The limiting rods are fixedly connected to the inner wall of the sink.

[0020] As a further description of the above technical solutions:

[0021] The push rods are sleeved in the output end of the sink.

[0022] The utility model has the following beneficial effects:

[0023] 1. In this utility model, the cam is driven by a motor to rotate, which in turn moves the pressure rod to compress the piston and spring. In conjunction with the one-way valve, the water that has been treated inside the water tank is transported to the nozzle through the delivery pipe and the output pipe and sprayed onto the scraper on the inner side of the scraper system. This washes the impurities attached to the scraper into the sewage chamber, preventing the impurities from re-entering the water.

[0024] 2. In this utility model, by controlling the second motor to drive the disc to rotate, the sliding frame pushes the sliding rod to move. Under the limit of the limit rod, the fixed plate drives the push rod to reciprocate into the mud and sand discharge port at the bottom of the water tank, so as to avoid the accumulation of mud and sand blocking the discharge port and affecting the discharge efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a municipal water supply and drainage sewage pretreatment device proposed in this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of the pressure rod of a municipal water supply and drainage sewage pretreatment device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the push rod of a municipal water supply and drainage sewage pretreatment device proposed in this utility model.

[0029] Legend:

[0030] 1. Water tank; 2. Motor 1; 3. Scraper system; 4. Cam; 5. Housing; 6. Spring; 7. Piston; 8. Pressure rod; 9. Delivery pipe; 10. Output pipe; 11. Check valve; 12. Motor 2; 13. Disc; 14. Sliding frame; 15. Sliding rod; 16. Fixing plate; 17. Limiting rod; 18. Push rod; 19. Nozzle. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 - Figure 4The present invention provides an embodiment of a municipal water supply and drainage sewage pretreatment device, comprising a water tank 1, a motor 2 fixedly connected to the upper side of the water tank 1, a scraper system 3 fixedly connected to the output end of the motor 2, the water tank 1 being used to treat sewage, wherein a dissolved air system is installed inside to attach small air bubbles to suspended impurities, the motor 2 being used to drive the cam 4 and the scraper system 3 to work, the scraper system 3 being used to scrape the impurities floating on the water surface into the sewage discharge chamber through the cooperation of the chain and the scraper, a cleaning component being installed on the front side of the water tank 1, and an anti-clogging component being installed inside the water tank 1;

[0033] The cleaning assembly includes a cam 4 and a housing 5. The cam 4 is internally fixedly connected to the output end of motor 2. The rear side of the housing 5 is fixedly connected to the front side of the water tank 1. Multiple springs 6 are fixedly connected to the bottom wall of the housing 5, and pistons 7 are fixedly connected between the tops of the springs 6. A pressure rod 8 is fixedly connected to the top of the piston 7. A delivery pipe 9 is fixedly connected to the right side of the housing 5, and an output pipe 10 is fixedly connected to the front side of the housing 5. A nozzle 19 is fixedly connected to the output pipe 10. One-way valves 11 are fixedly connected to the exterior of both the delivery pipe 9 and the output pipe 10. The cam 4 is used to push the pressure rod 8 to move. The housing 5 is used to connect and protect the internal parts. The springs 6 are used to push the piston 7 to reset. The piston 7 moves up and down reciprocally to pump oil. The pressure rod 8 drives the piston 7 to move synchronously. The delivery pipe 9 is used to transport the treated water. Water is fed into the housing 5. The output pipe 10 is used to deliver water to the nozzle 19. The one-way valve 11 is used to prevent water backflow. The one-way valve 11 on the right side is for inflow only, and the one-way valve 11 on the front side is for outflow only. The nozzle 19 is used to spray water onto the scraper of the scraper system 3 to achieve cleaning. The scraper system 3 is externally installed on the top of the water tank 1 to keep the scraper system 3 stable. The nozzle 19 is externally fixedly connected to the top of the water tank 1 to keep the nozzle 19 stable. The piston 7 is externally slidably connected to the inner wall of the housing 5. The pressure rod 8 is externally fixedly connected to the inside of the water tank 1. The water tank 1 restricts the movement direction of the piston 7 and the pressure rod 8. The cam 4 and the pressure rod 8 abut against each other, so that the pressure rod 8 presses the piston 7 to move. The right end of the delivery pipe 9 is sleeved inside the right side of the water tank 1 so that the water drawn by the delivery pipe 9 is treated water.

[0034] Reference Figure 1 - Figure 4The anti-blocking assembly comprises a second motor 12 fixedly connected outside the front side of the water tank 1, a disc 13 fixedly connected to the output end of the second motor 12, a sliding frame 14 fixedly connected to the left side of the disc 13, a sliding rod 15 fixedly connected to the rear side of the sliding frame 14, a fixed plate 16 fixedly connected to the rear end of the sliding rod 15, two limiting rods 17 slidably connected inside the fixed plate 16, and three push rods 18 fixedly connected to the front side of the limiting rods 17. The second motor 12 is used to drive the disc 13 to rotate, the disc 13 is used to drive the sliding frame 14 to move, the sliding frame 14 is used to drive the sliding rod 15 to move back and forth synchronously, the fixed plate 16 is used to drive the push rods 18 to move synchronously, the limiting rods 17 are used to limit the moving direction of the fixed plate 16, and the push rods 18 are used to push away the silt at the bottom of the water tank 1, so as to avoid blocking the silt sewage outlet. The sliding rod 15 is slidably connected outside the water tank 1, the fixed plate 16 is slidably connected outside the water tank 1, the limiting rods 17 are fixedly connected to the inner wall of the water tank 1, so that the limiting rods 17 remain stable, and the push rods 18 are sleeved outside the output end of the water tank 1, so that the silt is pushed out, thereby realizing the anti-blocking effect.

[0035] Working principle: when the device is used to treat sewage, water is input into the water tank 1 from the left side of the water tank 1, and a cleaning agent such as a flocculating agent is added, and then gas is introduced into the water by a dissolved gas system. Small gas bubbles will adhere to suspended matter and move to the top of the water surface, and solid impurities such as sand will sink to the bottom of the water tank 1. At this time, the motor 2 is controlled to rotate, and the motor 2 drives the scraper system 3 to work, so that the scraper system 3 scrapes the impurities floating on the water surface into the sewage bin. At the same time that the motor 2 rotates, the cam 4 is driven to rotate, which pushes the compression rod 8 to compress the spring 6, so that the spring 6 moves up and down back and forth and cooperates with the two one-way valves 11, so that the conveying pipe 9 sucks water from the inside of the water tank 1 and delivers it to the spray head 19 through the output pipe 10 to spray out, thereby washing the impurities adhering to the scraper and preventing the impurities from returning to the water. When the device is used for a period of time, the silt at the bottom of the water tank 1 deposits a certain thickness, and at this time, the silt needs to be removed in time. By opening the valve of the silt sewage outlet, the remaining water in the water tank 1 drives the silt to be removed from the sewage outlet. At the same time, the motor 2 is controlled to rotate, and the disc 13 drives the sliding frame 14 to move back and forth. Under the limitation of the limiting rods 17, the sliding rod 15 drives the fixed plate 16 to push the silt back and forth, so that the silt is pushed out of the sewage outlet, thereby avoiding the silt from blocking the sewage outlet, and improving the sewage efficiency.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A municipal water supply and sewerage wastewater pretreatment device comprising a sink (1), characterized in that: The water tank (1) upper side fixedly connected with motor one (2), the motor one (2) output fixedly connected with scraper system (3), the water tank (1) front side is installed with cleaning assembly, the water tank (1) inside is installed with anti-blocking assembly; The cleaning assembly includes cam (4) and shell (5), the cam (4) inside fixedly connected in the motor one (2) output, the shell (5) rear side fixedly connected in the water tank (1) front side, the shell (5) inner bottom wall fixedly connected with a plurality of springs (6), a plurality of spring (6) top fixedly connected with piston (7), the piston (7) top fixedly connected with pressure rod (8), the shell (5) right side fixedly connected with delivery pipe (9), the shell (5) front side fixedly connected with output pipe (10), the output pipe (10) nail fixedly connected with spray head (19), the delivery pipe (9) and the output pipe (10) outside are fixedly connected with check valve (11).

2. The municipal water supply and drainage sewage pretreatment device according to claim 1, characterized in that: The anti-blocking assembly includes motor two (12), the motor two (12) outside fixedly connected in the water tank (1) front side, the motor two (12) output fixedly connected with disc (13), the disc (13) left side fixedly connected with slide frame (14), the slide frame (14) rear side fixedly connected with slide rod (15), the slide rod (15) rear end fixedly connected with fixed plate (16), the fixed plate (16) inside slidingly connected with two limit rods (17), the limit rod (17) front side fixedly connected with three push rods (18).

3. The municipal water supply and sewerage sewage pretreatment device according to claim 1, characterized in that: The scraper system (3) outside is installed in the water tank (1) top, the spray head (19) outside fixedly connected in the water tank (1) top.

4. The municipal water supply and sewerage sewage pretreatment device according to claim 1, characterized in that: The piston (7) outside slidingly connected in the shell (5) inner wall, the pressure rod (8) outside fixedly connected in the water tank (1) inside.

5. The municipal water supply and sewerage sewage pretreatment device according to claim 1, characterized in that: The cam (4) and the pressure rod (8) abut, the delivery pipe (9) right end is sleeved in the water tank (1) right side inside.

6. The municipal water supply and sewerage sewage pretreatment device according to claim 2, characterized in that: The slide rod (15) outside slidingly connected in the water tank (1) inside, the fixed plate (16) outside slidingly connected in the water tank (1) inside.

7. A municipal water supply and sewerage pre-treatment device according to claim 2, characterized in that: The limit rod (17) outside fixedly connected in the water tank (1) inner wall.

8. The municipal water supply and sewerage sewage pretreatment device according to claim 2, characterized in that: The push rod (18) outside is sleeved in the water tank (1) output end inside.

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