Wastewater pretreatment device

Abstract

The utility model discloses a wastewater pretreatment device. The wastewater pretreatment device comprises a treatment tank, a frame is mounted on one side of the upper end of the treatment pond, a shaft rod is mounted at the tail end of the frame and on one side of the treatment pond, a steel wire grating conveying belt wraps the outer side of the shaft rod, a cleaning shaft is mounted in the position, below the steel wire grating conveying belt, between the frame, and a plurality of partition plates are arranged in the treatment pond. A precipitation tank is formed between the partition plates, screw rods are mounted at the bottom ends in the precipitation tank, and an eduction pipe is mounted at the position, corresponding to the precipitation tank, of the other side of the treatment pond. Solid and liquid are separated through the steel wire grating conveying belt, solid waste generated by filtering is guided out of the treatment pond through the steel wire grating conveying belt, while the solid waste is guided out through the steel wire grating conveying belt, the cleaning shaft is driven by the second motor to rotate, the steel wire grating conveying belt is cleaned through the cleaning shaft, and the cleaning efficiency is improved. Solid garbage is prevented from being attached to the upper side of the steel wire grating conveyor belt.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater pretreatment device. Background Art

[0002] Wastewater treatment is the use of physical, chemical and biological methods to treat wastewater, purify the wastewater, reduce pollution, and even recycle and reuse wastewater to make full use of water resources. Solid-liquid separation is required in the process of wastewater treatment.

[0003] Chinese patent number N209934256U discloses a solid-liquid separator with high solid-liquid separation efficiency, including a shell, a separation mechanism and a filter screen, a first extension block is fixed on the left side of the shell, a flange is arranged above the separation mechanism, a feed pipe is connected above the flange, a second extension block is fixed on the right side of the shell, a sliding groove is arranged on the external top of the baffle, and connecting plates are fixed on the left and right sides of the baffle, an electric push rod is installed below the connecting plate, a positioning groove is arranged outside the spring, an extension plate is connected inside the mounting hole, a waste water tank is arranged below the water outlet, and a bottom plate is installed below the waste water tank. When the prior art type is in use, the solid and liquid are separated by co-extrusion, and the separation speed is relatively slow. During use, the material can only be squeezed out before the next processing, which affects the processing speed of the material. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater pretreatment device to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater pretreatment device, comprising a treatment tank; a frame is installed at one side of the upper end of the treatment tank, an axle rod is installed at the end of the frame and at one side of the treatment tank, a wire grid conveyor belt is wrapped on the outside of the axle rod, one end of the axle rod on the upper side of the frame passes through the frame and is installed at the front end of a first motor, the front end of the first motor is installed on one side of the frame, a cleaning shaft is installed between the frames and below the wire grid conveyor belt, one end of the cleaning shaft passes through the frame and is installed at the rear end of a second motor, the second motor is installed at one side of the frame, a plurality of partitions are arranged inside the treatment tank, a sedimentation tank is formed between the partitions, a spiral rod is installed at the bottom end of each sedimentation tank, one end of the spiral rod passes through the treatment tank and is installed with a pulley, adjacent pulleys are connected by a belt, one end of the pulley is installed at the front end of a third motor, the third motor is installed at one side of the treatment tank, a derivation pipe is installed at the position corresponding to the sedimentation tank on the other side of the treatment tank, one end of the spiral rod extends into the derivation pipe, a control valve is installed on the upper side of the derivation pipe, and an overflow pipe is installed at the lateral end of the treatment tank.

[0006] Preferably, a guide plate is provided on one side of the treatment tank above the wire grid conveyor belt, and the guide plate is welded inside the treatment tank.

[0007] Preferably, a V-groove plate is provided at the bottom end of the sedimentation tank, and the V-groove plate is installed inside the sedimentation tank.

[0008] Preferably, a corrosion-resistant layer is provided on the outer side of the V-groove plate, and the corrosion-resistant layer is configured as a chrome-plated layer.

[0009] Preferably, a guide plate is provided on the other side of the treatment pool below the wire grid conveyor belt, and the guide plate is welded to the upper side of the treatment pool.

[0010] Preferably, a conical groove is provided at the bottom end of the sedimentation tank, and the conical groove is welded at the bottom end of the sedimentation tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Solids and liquids are separated by a steel wire grating conveyor belt. The steel wire grating conveyor belt guides the solid waste generated by filtration out of the treatment pool. While the steel wire grating conveyor belt guides the solid waste out, the cleaning shaft is driven to rotate by the second motor. The steel wire grating conveyor belt is cleaned by the cleaning shaft to prevent the solid waste from adhering to the upper side of the steel wire grating conveyor belt.

[0013] 2. The setting of the V-groove plate can prevent the solid waste from floating up due to water flow after sedimentation without affecting the sedimentation of solid waste;

[0014] 3. The export plate is used to quickly export the solid waste on the upper side of the wire grid conveyor belt, making it convenient to export the solid waste in a centralized manner;

[0015] 4. The setting of the conical trough can guide the solid matter produced by precipitation to the middle position at the bottom of the sedimentation tank, making it convenient for the spiral rod to quickly export the solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3It is a structural schematic diagram of the spiral rod of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the V-groove plate of the utility model.

[0021] In the figure: 1. treatment tank; 2. sedimentation tank; 3. V-groove plate; 4. conical groove; 5. spiral rod; 6. guide plate; 7. shaft rod; 8. wire grid conveyor belt; 9. partition; 10. export plate; 11. cleaning shaft; 12. frame; 13. first motor; 14. second motor; 15. overflow pipe; 16. export pipe; 17. corrosion-resistant layer; 18. pulley; 19. third motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In an embodiment of the utility model, a wastewater pretreatment device includes a treatment pool 1; a frame 12 is installed at one side of the upper end of the treatment pool 1, a shaft rod 7 is installed at the end of the frame 12 and at one side of the treatment pool 1, a steel wire grid conveyor belt 8 is wrapped around the outer side of the shaft rod 7, one end of the shaft rod 7 on the upper side of the frame 12 passes through the frame 12 and is installed at the front end of a first motor 13, the front end of the first motor 13 is installed on one side of the frame 12, a cleaning shaft 11 is installed between the frames 12 and below the steel wire grid conveyor belt 8, one end of the cleaning shaft 11 passes through the frame 12 and is installed at the rear end of a second motor 14, and the second motor 14 is installed on the frame At the position 12 on one side, a plurality of partitions 9 are arranged inside the treatment pool 1, and sedimentation tanks 2 are formed between the partitions 9. A spiral rod 5 is installed at the bottom end of the sedimentation tank 2. One end of the spiral rod 5 passes through the treatment pool 1 and is installed with a pulley 18. Adjacent pulleys 18 are connected by a belt, and one end of the pulley 18 is installed at the front end of a third motor 19. The third motor 19 is installed at one side of the treatment pool 1, and a dewatering pipe 16 is installed at the position corresponding to the sedimentation tank 2 on the other side of the treatment pool 1. One end of the spiral rod 5 extends into the interior of the dewatering pipe 16, and a control valve is installed on the upper side of the dewatering pipe 16. An overflow pipe 15 is installed at the lateral end of the treatment pool 1.

[0024] A guide plate 6 is provided on one side of the treatment pool 1 above the steel wire grating conveyor belt 8. The guide plate 6 is welded inside the treatment pool 1. The setting of the guide plate 6 can guide the water to the upper side of the steel wire grating conveyor belt 8, which is convenient for separating water and solid waste. An export plate 10 is provided on the other side of the treatment pool 1 below the steel wire grating conveyor belt 8. The export plate 10 is welded on the upper side of the treatment pool 1. The export plate 10 is used to quickly export the solid waste on the upper side of the steel wire grating conveyor belt 8, which is convenient for centralized export of solid waste.

[0025] A V-groove plate 3 is provided at the bottom of the sedimentation tank 2. The V-groove plate 3 is installed inside the sedimentation tank 2. The setting of the V-groove plate 3 can prevent the solid waste from floating up due to water flow after sedimentation without affecting the sedimentation of the solid waste. A corrosion-resistant layer 17 is provided on the outside of the V-groove plate 3. The corrosion-resistant layer 17 is set as a chrome-plated layer. The chrome-plated layer used in the corrosion-resistant layer 17 has strong corrosion resistance, which can reduce the corrosion of the V-groove plate 3 during use and extend the service life of the V-groove plate 3. A conical groove 4 is provided at the bottom of the sedimentation tank 2. The conical groove 4 is welded at the bottom of the sedimentation tank. The setting of the conical groove 4 can guide the solid matter produced by the sedimentation to the middle position of the bottom of the sedimentation tank 2, so as to facilitate the spiral rod 5 to quickly export the solid waste.

[0026] The working principle and use process of the utility model are as follows: when in use, the first motor 13 and the second motor 14 are turned on by the switch, the first motor 13 will drive the shaft rod 7 to rotate, and the shaft rod 7 will drive the wire grating conveyor belt 8 to rotate during the rotation process, and guide the sewage to the upper side of the wire grating conveyor belt 8, and separate the solid and liquid through the wire grating conveyor belt 8, and the wire grating conveyor belt 8 will export the solid garbage generated by the filtration to the treatment pool 1, and the wire grating conveyor belt 8 will drive the cleaning shaft 11 to rotate through the second motor 14 while exporting the solid garbage, and the wire grating conveyor belt 8 will be cleaned by the cleaning shaft 11 to prevent the solid garbage from adhering to the upper side of the wire grating conveyor belt 8, and the water entering the treatment pool 1 will be precipitated through the sedimentation tank 2, and the solid garbage generated by the precipitation will sink, and the water inside the sedimentation tank will gradually be introduced into each sedimentation tank 2 for step-by-step sedimentation, and finally exported through the overflow pipe 15, and the solid garbage generated by the precipitation will be driven by the third motor 19 to rotate the spiral rod 5, and the spiral rod 5 will export the solid garbage.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wastewater pretreatment device, comprising a treatment tank (1); characterized in that: A frame (12) is installed at one side of the upper end of the treatment pool (1), an axle (7) is installed at the end of the frame (12) and at one side of the treatment pool (1), a steel wire grid conveyor belt (8) is wrapped around the outer side of the axle (7), one end of the axle (7) on the upper side of the frame (12) passes through the frame (12) and is installed at the front end of a first motor (13), the front end of the first motor (13) is installed at one side of the frame (12), a cleaning shaft (11) is installed between the frames (12) and below the steel wire grid conveyor belt (8), one end of the cleaning shaft (11) passes through the frame (12) and is installed at the rear end of a second motor (14), the second motor (14) is installed at one side of the frame (12), and the treatment pool (1) is provided with a A plurality of partitions (9) are arranged, and a sedimentation tank (2) is formed between the partitions (9). A spiral rod (5) is installed at the bottom end of each sedimentation tank (2). One end of the spiral rod (5) passes through the treatment tank (1) and is installed with a pulley (18). Adjacent pulleys (18) are connected by a belt. One end of the pulley (18) is installed at the front end of a third motor (19). The third motor (19) is installed at a position on one side of the treatment tank (1). A dewatering pipe (16) is installed at a position corresponding to the sedimentation tank (2) on the other side of the treatment tank (1). One end of the spiral rod (5) extends into the inside of the dewatering pipe (16). A control valve is installed on the upper side of the dewatering pipe (16). An overflow pipe (15) is installed at the lateral end of the treatment tank (1).

2. A wastewater pretreatment device according to claim 1, characterized in that: A guide plate (6) is provided on one side of the treatment pool (1) at a position above the wire grid conveyor belt (8), and the guide plate (6) is welded inside the treatment pool (1).

3. A wastewater pretreatment device according to claim 2, characterized in that: A V-shaped groove plate (3) is provided at the bottom end of each sedimentation tank (2), and the V-shaped groove plate (3) is installed inside the sedimentation tank (2).

4. A wastewater pretreatment device according to claim 3, characterized in that: The outer side of the V-grooved plate (3) is provided with a corrosion-resistant layer (17), and the corrosion-resistant layer (17) is configured as a chrome-plated layer.

5. A wastewater pretreatment device according to claim 1, characterized in that: A guide plate (10) is provided on the other side of the treatment pool (1) below the wire grid conveyor belt (8), and the guide plate (10) is welded to the upper side of the treatment pool (1).

6. A wastewater pretreatment device according to claim 1, characterized in that: A conical groove (4) is provided at the bottom end of the sedimentation tank (2), and the conical groove (4) is welded to the bottom end of the sedimentation tank (2).

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