Pretreatment device for waste water and waste gas

Abstract

The utility model discloses a wastewater and waste gas pretreatment device which comprises a mixing tank, the surface of the mixing tank is fixedly connected with a water inlet pipe and a gas inlet pipe, the top of the mixing tank is fixedly connected with a breather pipe, the tail end of the breather pipe is fixedly connected with an air filter box, and the top of the air filter box is fixedly connected with an exhaust pipe. Belongs to the technical field of wastewater and waste gas treatment. The gas inlet pipe is arranged below the water inlet pipe, after waste water enters the mixing tank, waste gas enters the bottom end of the interior of the mixing tank through the gas inlet pipe, impurity particles in the waste gas can be blended into the waste water through contact between the waste gas and the waste water, the waste gas can be filtered, and the waste gas can be recycled. And then the filtered waste gas enters the air filtering box to be subjected to secondary filtering and then is discharged, so that solid particles in the waste gas are reduced, the environmental protection property of discharging is improved, the service life of a filtering piece in the air filtering box is prolonged, and the equipment investment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater and waste gas treatment, and specifically relates to a pretreatment device for wastewater and waste gas. Background Art

[0002] The wastewater and waste gas pretreatment device is an environmental protection device used to treat the generated wastewater and waste gas to reduce environmental pollution. This device usually includes a series of treatment steps and technologies, aiming to pre-treat the waste before its final treatment or discharge to reduce the concentration and harm of pollutants.

[0003] In traditional waste gas and wastewater treatment equipment, the waste gas is treated separately. When treating, the waste gas is dusted through spraying equipment such as a spray tower, and then the waste gas is filtered through a filtering device. Therefore, the waste gas treatment process is increased. Treating the waste gas and wastewater separately requires additional waste gas treatment equipment, increasing the treatment process and the number of devices, making the entire treatment system more complex, and the maintenance and management costs also increase accordingly. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a pretreatment device for wastewater and waste gas, which solves the problem that in traditional waste gas and wastewater treatment equipment, the waste gas is treated separately. When treating, the waste gas is dusted through spraying equipment such as a spray tower, and then the waste gas is filtered through a filtering device. Therefore, the waste gas treatment process is increased. Treating the waste gas and wastewater separately requires additional waste gas treatment equipment, increasing the treatment process and the number of devices, making the entire treatment system more complex, and the maintenance and management costs also increase accordingly.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A pretreatment device for wastewater and waste gas includes a mixing tank. The surface of the mixing tank is fixedly connected with a water inlet pipe and a gas inlet pipe. The top of the mixing tank is fixedly connected with a ventilation pipe. The end of the ventilation pipe is fixedly connected with an air filtration box. The top of the air filtration box is fixedly connected with an exhaust pipe. A sewage filtration assembly is installed on the outer surface of the mixing tank. One end of the sewage filtration assembly away from the mixing tank is installed with a sewage mixing box. The outer surface of the sewage mixing box is fixedly connected with a connecting pipe and a drain pipe. The input end of the connecting pipe is fixedly connected with a medicine storage tank. The top of the medicine storage tank is fixedly installed with an electric telescopic rod. The output end of the electric telescopic rod is fixedly connected with a sealing plate. The outer surface of the medicine storage tank is fixedly connected with a feeding hopper. The inner top of the sewage mixing box is fixedly installed with a stirring motor. The output end of the stirring motor is fixedly installed with a stirring rod.

[0006] Preferably, electromagnetic valves are fixedly installed on the outer surfaces of the charging hopper and the connecting pipe, a sealing ring is fixedly installed on the outer surface of the sealing plate, and the outer surface of the sealing plate is hermetically and slidably connected inside the medicine storage tank through the sealing ring.

[0007] Preferably, the sewage filtering assembly includes an external threaded pipe fixedly connected to the surfaces of the mixing tank and the sewage mixing tank, an internal threaded pipe threadedly connected to the outer surface of the external threaded pipe, a nut fixedly sleeved on the outer surface of the internal threaded pipe, a limiting ring fixedly connected to the inner wall of the internal threaded pipe, a filtering pipe hermetically and slidably connected to the inner wall of the internal threaded pipe, a sealing ring fixedly installed at the connection between the filtering pipe and the internal threaded pipe, a positioning block fixedly connected to the inside of the filtering pipe, a filter element abutted against the surface of the positioning block, and a threaded ring rotatably threaded inside the filtering pipe.

[0008] Preferably, the inner wall of the limiting ring is slidably connected to the outer surface of the filtering pipe, and the surface of the threaded ring abuts against the surface of the filter element.

[0009] Preferably, the numbers of the external threaded pipe, the internal threaded pipe, the nut, the limiting ring, the filtering pipe and the sealing ring are all two.

[0010] Preferably, the inside of the mixing tank is communicated with the inside of the sewage mixing tank through the sewage filtering assembly. Advantageous Effects

[0011] The present utility model provides a pretreatment device for wastewater and waste gas. Compared with the prior art, the following advantageous effects are achieved:

[0012] 1. In this pretreatment device for wastewater and waste gas, by arranging the air inlet pipe below the water inlet pipe, when the wastewater enters the inside of the mixing tank, the waste gas enters the bottom end inside the mixing tank through the air inlet pipe. Through the contact between the waste gas and the wastewater, the debris particles in the waste gas can be incorporated into the wastewater, so that the waste gas can be filtered. Then, the filtered waste gas enters the air filtering box for secondary filtering and then is discharged. This helps to reduce the solid particles in the waste gas, improve the environmental protection of the emission, extend the service life of the filtering parts inside the air filtering box, and reduce the equipment investment cost.

[0013] 2. In this pretreatment device for wastewater and waste gas, by arranging the sewage filtering assembly, the impurities in the sewage inside the mixing tank can be filtered, and it is convenient to disassemble, install and replace the filter element, thus improving the filtering effect of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the medicine storage tank in the present utility model;

[0016] Figure 3 This is a schematic structural diagram of the sewage filtration component in the present utility model.

[0017] In the figure: 1. Mixing tank; 2. Water inlet pipe; 3. Air inlet pipe; 4. Vent pipe; 5. Air filtration box; 6. Exhaust pipe; 7. Sewage filtration component; 71. External thread pipe; 72. Internal thread pipe; 73. Nut; 74. Limiting ring; 75. Filter pipe; 76. Sealing ring; 77. Positioning block; 78. Filter element; 79. Thread ring; 8. Sewage mixing box; 9. Chemical storage tank; 10. Electric telescopic rod; 11. Sealing plate; 12. Feeding hopper; 13. Connecting pipe; 14. Stirring motor; 15. Drain pipe. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3, the present utility model provides a technical solution: a pretreatment device for wastewater and waste gas, including a mixing tank 1. A water inlet pipe 2 and a gas inlet pipe 3 are fixedly connected to the surface of the mixing tank 1. A ventilation pipe 4 is fixedly connected to the top of the mixing tank 1. The end of the ventilation pipe 4 is fixedly connected to an air filtration box 5. An exhaust pipe 6 is fixedly connected to the top of the air filtration box 5. A sewage filtration component 7 is installed on the outer surface of the mixing tank 1. One end of the sewage filtration component 7 away from the mixing tank 1 is installed with a sewage mixing box 8. The inside of the mixing tank 1 is communicated with the inside of the sewage mixing box 8 through the sewage filtration component 7. A connecting pipe 13 and a drain pipe 15 are fixedly connected to the outer surface of the sewage mixing box 8. The input end of the connecting pipe 13 is fixedly connected to a medicine storage tank 9. An electric telescopic rod 10 is fixedly installed on the top of the medicine storage tank 9. The output end of the electric telescopic rod 10 is fixedly connected to a sealing plate 11. A sealing ring is fixedly installed on the outer surface of the sealing plate 11. The outer surface of the sealing plate 11 is hermetically slidably connected to the inside of the medicine storage tank 9 through the sealing ring. A feeding hopper 12 is fixedly connected to the outer surface of the medicine storage tank 9. Solenoid valves are fixedly installed on the outer surfaces of the feeding hopper 12 and the connecting pipe 13. A stirring motor 14 is fixedly installed at the top end inside the sewage mixing box 8. The output end of the stirring motor 14 is fixedly installed with a stirring rod. By arranging the gas inlet pipe 3 below the water inlet pipe 2, when the wastewater enters the inside of the mixing tank 1, the waste gas enters the bottom end inside the mixing tank 1 through the gas inlet pipe 3. Through the contact between the waste gas and the wastewater, the debris particles in the waste gas can be incorporated into the wastewater, so that the waste gas can be filtered. Then the filtered waste gas enters the air filtration box 5 for secondary filtration and then is discharged. This helps to reduce the solid particles in the waste gas, improve the environmental protection of the emission, and extend the service life of the filter elements inside the air filtration box 5;

[0020] The sewage filtration component 7 includes an external thread pipe 71 fixedly connected to the surfaces of the mixing tank 1 and the sewage mixing box 8. An internal thread pipe 72 is threadedly connected to the outer surface of the external thread pipe 71. A nut 73 is fixedly sleeved on the outer surface of the internal thread pipe 72. A limiting ring 74 is fixedly connected to the inner wall of the internal thread pipe 72. A filter pipe 75 is hermetically slidably connected to the inner wall of the internal thread pipe 72. The inner wall of the limiting ring 74 is slidably connected to the outer surface of the filter pipe 75. A sealing ring 76 is fixedly installed at the connection between the filter pipe 75 and the internal thread pipe 72. The numbers of the external thread pipe 71, the internal thread pipe 72, the nut 73, the limiting ring 74, the filter pipe 75 and the sealing ring 76 are all two. A positioning block 77 is fixedly connected to the inside of the filter pipe 75. A filter element 78 abuts against the surface of the positioning block 77. A threaded ring 79 is rotatably threaded inside the filter pipe 75. The surface of the threaded ring 79 abuts against the surface of the filter element 78. By arranging the sewage filtration component 7, the impurities in the sewage inside the mixing tank 1 can be filtered, and it is convenient to disassemble and replace the filter element 78, improving the filtration effect of the filter element 78.

[0021] During operation, the wastewater enters the interior of the mixing tank 1 through the inlet pipe 2. Then, the waste gas enters the bottom end inside the mixing tank 1 through the inlet pipe 3. Through the contact between the waste gas and the wastewater, the debris particles in the waste gas can be incorporated into the wastewater. Then, the waste gas enters the air filtration box 5 through the ventilation pipe 4 for secondary filtration. The wastewater enters the sewage mixing box 8 after being filtered by the sewage filtration component 7. By starting the mixing tank 1 to drive the sealing plate 11 to slide downward, drugs are added into the sewage mixing box 8. The drugs and the wastewater are mixed by starting the stirring motor 14. After the mixed wastewater meets the standards, it is discharged through the drain pipe 15. When replacing the filter element 78, the internal threaded pipe 72 is rotated by the nut 73. The internal threaded pipe 72 will slide on the outer surface of the filter pipe 75. When the internal threaded pipe 72 is disengaged from the external threaded pipe 71, the filter pipe 75 can be taken out. Then, after rotating and removing the threaded ring 79, the filter element 78 can be directly taken out and replaced.

[0022] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A wastewater and waste gas pretreatment device, comprising a mixing tank (1), characterized in that: The surface of the mixing tank (1) is fixedly connected to a water inlet pipe (2) and an air inlet pipe (3); the top of the mixing tank (1) is fixedly connected to a ventilation pipe (4); the end of the ventilation pipe (4) is fixedly connected to an air filter box (5); the top of the air filter box (5) is fixedly connected to an exhaust pipe (6); a sewage filter assembly (7) is installed on the outer surface of the mixing tank (1); a sewage mixing box (8) is installed at one end of the sewage filter assembly (7) away from the mixing tank (1); and the outer surface of the sewage mixing box (8) is A connecting pipe (13) and a drainage pipe (15) are fixedly connected, the input end of the connecting pipe (13) is fixedly connected to a medicine storage tank (9), an electric telescopic rod (10) is fixedly mounted on the top of the medicine storage tank (9), an output end of the electric telescopic rod (10) is fixedly connected to a sealing plate (11), an outer surface of the medicine storage tank (9) is fixedly connected to a material injection hopper (12), a stirring motor (14) is fixedly mounted on the top of the interior of the sewage mixing tank (8), and a stirring rod is fixedly mounted on the output end of the stirring motor (14).

2. A wastewater and waste gas pretreatment device according to claim 1, characterized in that: The outer surfaces of the injection hopper (12) and the connecting pipe (13) are both fixedly mounted with solenoid valves, the outer surface of the sealing plate (11) is fixedly mounted with a sealing ring, and the outer surface of the sealing plate (11) is sealingly slidably connected to the interior of the medicine storage tank (9) via the sealing ring.

3. The wastewater and waste gas pretreatment device according to claim 1, characterized in that: The sewage filter assembly (7) comprises an externally threaded tube (71) fixedly connected to the surfaces of the mixing tank (1) and the sewage mixing box (8); the external surface of the externally threaded tube (71) is threadedly connected to an internally threaded tube (72); a nut (73) is fixedly sleeved on the external surface of the internally threaded tube (72); a limit ring (74) is fixedly connected to the inner wall of the internally threaded tube (72); a filter tube (75) is sealingly and slidably connected to the inner wall of the internally threaded tube (72); a sealing ring (76) is fixedly installed at the connection between the filter tube (75) and the internally threaded tube (72); a positioning block (77) is fixedly connected to the inside of the filter tube (75); a filter element (78) is abutted against the surface of the positioning block (77); and a threaded ring (79) is rotatably connected to the inner thread of the filter tube (75).

4. A wastewater and waste gas pretreatment device according to claim 3, characterized in that: The inner wall of the limiting ring (74) is slidably connected to the outer surface of the filter tube (75), and the surface of the threaded ring (79) is in contact with the surface of the filter element (78).

5. The wastewater and waste gas pretreatment device according to claim 3, characterized in that: The number of the externally threaded tube (71), the internally threaded tube (72), the nut (73), the limiting ring (74), the filter tube (75) and the sealing ring (76) is two.

6. A wastewater and waste gas pretreatment device according to claim 3, characterized in that: The interior of the mixing tank (1) is connected to the interior of the sewage mixing box (8) via the sewage filtering assembly (7).

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