Domestic sewage recovery pretreatment device

Abstract

The utility model discloses a domestic sewage recycling pretreatment device which is characterized in that a sedimentation tank is attached to one side of a filter tank, a conveying belt is detachably connected to the end, close to the sedimentation tank, in the filter tank through screws, meshes are formed in the conveying belt, and lifting plates are uniformly and fixedly connected to the outer wall of the conveying belt; a containing groove is formed in the inner wall of the lifting plate, meshes are formed in the side wall of the lifting plate, the conveying belt is of an inclined structure, and the conveying belt capable of circularly rotating is used for replacing an original fixed filter, so that the conveying belt can be prevented from making contact with sewage for a long time, blockage is avoided, and due to the fact that the whole conveying belt is provided with the meshes, the conveying belt is convenient to use. Meanwhile, a lifting plate is fixed to the outer wall of the conveying belt and can synchronously move along with the conveying belt, impurities gathered on one side of the conveying belt can be lifted and taken away along with rising of the lifting plate, and it is avoided that too much impurities are accumulated to affect the filtering effect; in this way, the influence of shutdown cleaning on the treatment efficiency is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment devices, specifically to a domestic sewage recycling and pretreatment device. Background Technology

[0002] Domestic sewage refers to wastewater generated during daily life and is one of the main sources of urban wastewater. This sewage is collected and treated in treatment plants, which is also the main method of sewage treatment. Pre-treatment is required before formal treatment to improve the efficiency of subsequent treatment.

[0003] Pretreatment typically involves cleaning and removing large solid impurities and silt from wastewater. However, current filtration methods for fixed impurities cause them to accumulate on the filter, requiring periodic shutdowns for cleaning or filter replacement, which affects the efficiency of pretreatment. Therefore, this paper proposes a domestic wastewater recycling pretreatment device. Utility Model Content

[0004] The technical problem this invention aims to solve is that current filtration of fixed impurities causes them to accumulate on the filter, requiring periodic shutdowns for cleaning or replacement of the filter element. This invention provides a domestic sewage recycling pretreatment device that eliminates the need for shutdowns to clean the filter or filter element, and also prevents impurities from accumulating in front of the filter and affecting the filtration effect.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a domestic sewage recycling pretreatment device, including a filter tank, a sedimentation tank is attached to one side of the filter tank, a conveyor belt is detachably connected to the filter tank and the end of the filter tank near the sedimentation tank by screws, an arc-shaped groove is opened at the top of the filter tank and opposite to one end of the conveyor belt, and the end of the conveyor belt extending into the filter tank is in the arc-shaped groove and attached to the inner wall of the arc-shaped groove, a mesh is opened on the conveyor belt, lifting plates are uniformly fixedly connected to the outer wall of the conveyor belt, a receiving groove is opened on the inner wall of the lifting plate and a mesh is opened on the side wall, and the conveyor belt is an inclined structure.

[0006] As a preferred embodiment of this utility model, the top two sides of the filter tank near the sedimentation tank are fixedly connected to fixed columns. The fixed columns are rotatably connected to the two ends of the rotating roller in the conveyor belt through the end away from the filter tank, and a motor is connected to the top of one of the fixed columns.

[0007] As a preferred technical solution of this utility model, the sedimentation tank is fixedly connected to the top two sides of the filter tank, and a discharge plate is fixedly connected to the top of the support plate. The discharge plate has an inclined structure, and the inner cavity of the discharge plate corresponds to the opening of the receiving groove in the lifting plate. Two fixing plates are fixedly connected to the bottom side wall of the discharge plate, and a vibrator is detachably connected between the two fixing plates by screws.

[0008] As a preferred technical solution of this utility model, the two opposite side walls of the sedimentation tank are fixedly connected to the flow-blocking plate. The flow-blocking plates on both sides have an interlaced structure and an L-shaped structure. A return groove is opened on one side of the horizontal plate of the flow-blocking plate.

[0009] As a preferred technical solution of this utility model, the bottom sidewall of the sedimentation tank is uniformly fixedly connected with intercepting plates, and an arc-shaped groove is opened on one side of the intercepting plate. The inner wall of the arc-shaped groove is fixedly connected with Velcro. Both ends of the filter tank and the sedimentation tank are provided with water outlets, and the filter tank and the sedimentation tank are connected through the water outlets.

[0010] This invention has the following advantages: It uses a rotating conveyor belt to replace the original fixed filter. This prevents the conveyor belt from being in contact with sewage for too long, thus avoiding clogging. However, because the entire conveyor belt is perforated, the filtration effect can be guaranteed even if the conveyor belt is constantly rotating. At the same time, the lifting plate fixed on the outer wall of the conveyor belt can move synchronously with the conveyor belt. As the lifting plate rises, it can lift and carry away the impurities that have accumulated on one side of the conveyor belt, preventing excessive accumulation of impurities from affecting the filtration effect. In this way, the impact of downtime for cleaning on the processing efficiency is avoided. Attached Figure Description

[0011] Figure 1 This is a top view schematic diagram of a preferred embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the filter tank structure of a preferred embodiment of the present invention;

[0013] Figure 3 This is a partial structural diagram of the sedimentation tank bottom according to a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Filter tank; 2. Conveyor belt; 3. Lifting plate; 4. Sedimentation tank; 5. Support plate; 6. Discharge plate; 7. Baffle plate; 8. Return trough; 9. Interceptor plate; 10. Water outlet; 11. Fixing plate; 12. Vibrator; 13. Fixing column; 14. Arc-shaped trough; 15. Velcro. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 This utility model discloses a domestic sewage recycling and pretreatment device, including a filter tank 1, a sedimentation tank 4 attached to one side of the filter tank 1, a conveyor belt 2 detachably connected to the filter tank 1 near the sedimentation tank 4 by screws, an arc-shaped groove 14 is opened at the top of the filter tank 1 and opposite to one end of the conveyor belt 2, and one end of the conveyor belt 2 extending into the filter tank 1 is in the arc-shaped groove 14 and attached to the inner wall of the arc-shaped groove 14, the conveyor belt 2 has mesh openings, lifting plates 3 are evenly fixedly connected to the outer wall of the conveyor belt 2, the inner wall of the lifting plate 3 has a receiving groove and the side wall has mesh openings, the conveyor belt 2 has an inclined structure, and fixing columns 13 are fixedly connected to both sides of the top edge of the filter tank 1 near the sedimentation tank 4, the fixing columns 13 are rotatably connected to the two ends of the rotating roller in the conveyor belt 2 through the end away from the filter tank 1, and a motor is connected to the top of one of the fixing columns 13.

[0017] The sedimentation tank 4 is fixedly connected to the top two sides of the filter tank 1 with support plates 5. The top of the support plate 5 is fixedly connected to the discharge plate 6. The discharge plate 6 has an inclined structure. The inner cavity of the discharge plate 6 corresponds to the opening of the receiving groove in the lifting plate 3. Two fixing plates 11 are fixedly connected to the bottom side wall of the discharge plate 6. The two fixing plates 11 are detachably connected to the vibrator 12 by screws.

[0018] The technical effect of this solution is as follows: wastewater is sent into the filter tank 1 through the water inlet 10. The wastewater passes through the conveyor belt 2 and is filtered by the mesh on the conveyor belt 2. The filtered impurities accumulate on one side of the conveyor belt 2. As the conveyor belt 2 rotates, the lifting plate 3 collects and lifts these impurities, thereby avoiding excessive accumulation of filtered impurities that would affect the filtration effect. Furthermore, the rotation of the conveyor belt 2 avoids prolonged contact with the wastewater, thus preventing blockage caused by prolonged contact and ensuring the filtration effect.

[0019] As the lifting plate 3 moves to the top and tilts, the impurities in the receiving trough will fall off. Because the conveyor belt 2 is tilted, it ensures that the discharge plate 6 is opposite to the lifting plate 3 which is discharging material. In this way, the falling impurities will smoothly enter the discharge plate 6 and be discharged along the inclined surface of the discharge plate 6.

[0020] The two opposite side walls of the sedimentation tank 4 are fixedly connected to the baffle plate 7. The two baffle plates 7 are staggered and L-shaped. A return groove 8 is opened on one side of the horizontal plate of the baffle plate 7. The bottom side wall of the sedimentation tank 4 is evenly fixedly connected to the intercepting plate 9. An arc groove 14 is opened on one side of the intercepting plate 9. The inner wall of the arc groove 14 is fixedly connected to the Velcro 15. Both ends of the side walls of the filter tank 1 and the sedimentation tank 4 are connected by water inlets 10, and the filter tank 1 and the sedimentation tank 4 are connected through the water inlets 10.

[0021] The technical effects of this solution are as follows: the filtered wastewater enters the sedimentation tank 4 through the inlet 10. The flow-blocking plate 7 fixed on the inner wall of the sedimentation tank 4 can block the flow of wastewater, reduce the flow rate, and keep it in a slightly flowing state. This provides sufficient environment and time for the sediment in the water to settle. The backflow trough 8 can improve the flow-blocking effect by allowing backflow. In addition, the interception plate 9 can restrict the sediment in addition to the flow-blocking effect, preventing it from mixing with the water.

[0022] Specifically, in use, wastewater is first fed into the filter tank 1 through the inlet 10. The conveyor belt 2 is started in advance, and the wastewater flows through the conveyor belt 2 to achieve the filtration effect. The filtered impurities are lifted and carried away by the lifting plate 3 that moves with the conveyor belt 2. Finally, the impurities in the lifting plate 3 fall onto the discharge plate 6 and are discharged along the discharge plate 6. To ensure the discharge effect, a vibrator 12 is connected to the bottom side wall of the discharge plate 6 through a fixing plate 11. The vibrator 12 drives the discharge plate 6 to vibrate, ensuring smooth discharge. The filtered wastewater enters the sedimentation tank 4. The flow-blocking plate 7 can block the wastewater flow, and the established return channel 8 can generate backflow. The backflow and forward flow collide to further reduce the flow velocity. By reducing the flow velocity, the sedimentation effect is ensured. The established interception plate 9 can restrict the sedimented impurities on the basis of flow blocking. The Velcro 15 has many tiny hooks, which can effectively restrict the impurities and prevent them from being mixed with the wastewater again.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A domestic sewage recovery pretreatment device, comprising a filter tank (1), a sedimentation tank (4) is arranged on one side of the filter tank (1), characterized in that, The filter groove (1) is detachably connected with a conveying belt (2) through screws at one end close to the sedimentation tank (4), an arc-shaped groove (14) is formed at the top of the filter groove (1) opposite to one end of the conveying belt (2), and the end of the conveying belt (2) extending into the filter groove (1) is located in the arc-shaped groove (14) and adheres to the inner wall of the arc-shaped groove (14), the conveying belt (2) is provided with mesh holes, and the outer wall of the conveying belt (2) is uniformly and fixedly connected with a lifting plate (3), the inner wall of the lifting plate (3) is provided with a receiving groove, and the sidewall is provided with mesh holes, and the conveying belt (2) is of an inclined structure.

2. A device for the pretreatment of domestic wastewater according to claim 1, characterized in that The top of the filter groove (1) is fixedly connected with a fixed column (13) on both sides close to the sedimentation tank (4), the fixed column (13) is rotatably connected with both ends of the inner rotating roller of the conveying belt (2) through the end away from the filter groove (1), and the top of one of the fixed columns (13) is connected with a motor.

3. A device for the pretreatment of domestic wastewater according to claim 1, characterized in that The top of the filter groove (1) is fixedly connected with a fixed column (13) on both sides close to the sedimentation tank (4), the fixed column (13) is rotatably connected with both ends of the inner rotating roller of the conveying belt (2) through the end away from the filter groove (1), and the top of one of the fixed columns (13) is connected with a motor.

4. A device for the pretreatment of domestic wastewater according to claim 1, characterized in that The opposite side walls of the sedimentation tank (4) are fixedly connected with a flow resistance plate (7), the flow resistance plates (7) on both sides are of a staggered structure, the flow resistance plate (7) is of an L-shaped structure, and the side of the horizontal plate of the flow resistance plate (7) is provided with a backflow groove (8).

5. A device for the pretreatment of domestic wastewater according to claim 1, characterized in that The bottom side walls of the sedimentation tank (4) are uniformly fixedly connected with a trapping plate (9), one side of the trapping plate (9) is provided with an arc-shaped groove (14), the inner wall of the arc-shaped groove (14) is fixedly connected with a magic tape (15), the side walls of both ends of the filter groove (1) and the sedimentation tank (4) are throughly provided with a water gap (10), and the filter groove (1) and the sedimentation tank (4) are communicated through the water gap (10).

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