Chemical additive feeding device and feeding method for sewage treatment tank

Abstract

The invention discloses a chemical additive feeding device for a sewage treatment tank and a feeding method of the chemical additive feeding device. The device comprises a track arranged at the top of a sewage treatment tank, a movable base, rollers, a plurality of additive boxes which are annularly distributed, a material distribution box, a double-shaft motor and the like. A piston mechanism is arranged in the additive box, and accurate feeding of the additive is achieved through driving of a double-shaft motor. A partition plate and a liquid receiving pipe joint are arranged in the material distribution box and used for preliminarily mixing different additives. The rotating pipe fitting and the stirring mechanism ensure that the additive is fully mixed with sewage. Accurate feeding and efficient mixing of additives are achieved through automatic control, the sewage treatment efficiency is improved, and the requirement for manual intervention is lowered. In addition, through a modular design and an intelligent control system, the device has the characteristics of high flexibility, high adaptability, energy conservation, environmental protection and the like, and is suitable for sewage treatment requirements of different scales and types.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a device and method for adding chemical additives to a sewage treatment pool. Background Art

[0002] With the acceleration of industrialization and urbanization, sewage treatment has become an important task in environmental protection. Sewage treatment not only involves the removal of pollutants such as suspended solids, organic matter and inorganic salts in sewage, but also often requires the addition of specific chemical additives to improve the treatment effect or meet specific water quality standards. For example, in some cases, flocculants need to be added to promote the coagulation and precipitation of solid particles, or disinfectants need to be added to kill bacteria and viruses in the water.

[0003] At present, there are two main ways of adding chemical additives in the sewage treatment process: manual addition and simple automatic addition.

[0004] Among them, although the manual delivery method is more flexible, it has the following shortcomings: High labor intensity: Manual addition of additives requires workers to frequently carry and operate, which is labor-intensive.

[0005] Poor accuracy: Due to the instability of manual operation, it is difficult to ensure that the amount of additives added each time is completely accurate.

[0006] Low safety: Long-term exposure to chemical additives may cause harm to human health.

[0007] Although the existing automated dosing equipment can reduce the intensity of manual labor, it still has shortcomings in terms of mixing efficiency and accuracy of additive dosing. For example, some equipment can only dosing a single type of additive and cannot handle the mixing of multiple additives at the same time; other equipment can mix multiple additives, but due to insufficient mixing, the treatment effect is poor. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide an adaptive chemical additive delivery system, which can realize the automatic delivery of multiple chemical additives and ensure that the additives are fully mixed with sewage, thereby improving sewage treatment efficiency and water quality.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: a chemical additive delivery device for a sewage treatment tank, comprising a track arranged on the top of the sewage treatment tank and a movable base arranged in the track, a plurality of additive boxes distributed in an annular direction are arranged on the top of the movable base, a distribution box is fixed at the bottom of the movable base through a fixed connecting rod, and additive output pipes are arranged at the bottom of the plurality of additive boxes, and the additive output pipes are connected to the distribution box; The material distribution box is formed with multiple chambers by partitions, and multiple additive output pipes are respectively connected to different chambers. The partition forms a columnar area in the middle of the material distribution box, and a liquid receiving pipe section is provided in the columnar area. Multiple vertically evenly distributed through holes are provided on the columnar area and the side wall of the partition, and a strip hole is provided on the side wall of the liquid receiving pipe section; A double-shaft motor is provided on the top of the movable base, a second output shaft at the bottom of the double-shaft motor passes downward through the movable base and is connected to a rotating pipe through a coupling, a liquid receiving pipe section is arranged in the middle of the rotating pipe, and an additive output hole is provided on the lower end of the rotating pipe.

[0010] In a preferred solution, a roller is provided at the bottom of the movable base, and the roller drives the movable base to move on the track.

[0011] In a preferred embodiment, an additive input pipe is connected to the side wall of the additive box, a movable stopper is provided in the additive box, a piston is embedded on the bottom surface of the movable stopper, a piston rod is connected to the top surface of the piston, and the piston rod passes through the top surface of the movable stopper and the top surface of the additive box.

[0012] In a preferred embodiment, a first output shaft is provided on the top of the dual-axis motor, the first output shaft extends upward to above the top surface of the additive box and a rotating block is provided on the upper end of the first output shaft, a downwardly-elevated annular protrusion is provided on the bottom surface of the rotating block, and the elevated annular protrusion contacts the upper ends of piston rods extending from the top surfaces of multiple additive boxes.

[0013] In a preferred solution, a first spring is sleeved on the piston rod in the additive box, and a second spring is sleeved on the piston rod outside the additive box.

[0014] In a preferred solution, a vertical groove is provided on the inner side wall of the additive box, one end of the additive inlet pipe is connected to the vertical groove, and a protrusion is provided on the outer wall of the movable stopper, and the protrusion is located in the vertical groove.

[0015] In the preferred solution, a driving gear is provided on the rotating pipe below the material distribution box, a plurality of stirring shafts are movably provided on the bottom surface of the material distribution box, a driven gear meshing with the driving gear is provided on the upper part of the stirring shaft, and a stirring rod is provided at the lower end of the stirring shaft.

[0016] The method for adding additives based on the above-mentioned chemical additive adding device for a sewage treatment pool specifically comprises the following steps: 1) The device drives the rollers through the drive system to move the device on the track to above the working area; 2) Start the delivery valves on the pipelines connected to the multiple additive input pipes; 3) Start the dual-axis motor, the first output shaft drives the rotating block to rotate, and under the action of the first spring and the second spring, the movable blocks and pistons in the multiple additive boxes are moved downward and upward in sequence; 4) Different additives enter the additive box in turn and are injected into different compartments in the material distribution box after being pressurized by the piston. The additives in different compartments are preliminarily mixed through the through holes on the partition; 5) The second output shaft at the lower end of the dual-axis motor drives the liquid receiving pipe section to rotate at the same time, and the strip holes on the liquid receiving pipe section are aligned with the different through holes on the central cylindrical area of ​​the partition in sequence, so as to realize the injection of different additives into the rotating pipe; 6) The different additives injected into the rotating pipe are output from the additive output hole at the lower end of the rotating pipe, and are fully mixed with the sewage in the sewage treatment tank under the action of the stirring rods on both sides of the output position.

[0017] In a preferred solution, in step 3), the first spring remains in a compressed state and ensures the fit between the movable stopper and the piston; The second spring ensures that the movable stopper and the piston can be reset upward during the rotation of the rotating block; The elastic modulus of the first spring is greater than the elastic modulus of the second spring.

[0018] In a preferred solution, in step 6), the continuous rotation of the rotating tube drives the direction of the additive output hole to change, so that the additive can be evenly diffused in all directions.

[0019] The chemical additive dosing device and method for a sewage treatment pool provided by the present invention have the following beneficial effects by adopting the above structure and method: (1) A dual-axis motor is used to drive the piston mechanism and rotating pipe inside the additive box, realizing the automatic intermittent delivery and delivery of additives. The movement of the roller on the track enables the entire device to be automatically positioned above the sewage treatment tank, reducing the need for manual intervention; (2) The preliminary mixing of the additives in the distribution box is achieved through the through holes on the partition and the strip holes on the liquid receiving pipe section, while the continuous rotation of the rotating pipe and the stirring action of the stirring rod ensure the full mixing of the additives and the sewage, thereby improving the efficiency of the chemical reaction; (3) The design of multiple additive tanks allows for the simultaneous processing of multiple chemical additives to meet different sewage treatment needs. The type and order of additives can also be adjusted according to different treatment processes, thus enhancing the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure above the movable base of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure below the movable base of the present invention.

[0023] Figure 4 It is a partial structural schematic diagram of the stirring system of the present invention.

[0024] Figure 5 It is a schematic diagram of the top view of the structure of the cloth box of the present invention.

[0025] Figure 6 It is a schematic diagram of the rotating block structure of the present invention.

[0026] In the figure: sewage treatment tank 1, track 2, movable base 3, roller 4, additive box 5, movable block 6, vertical groove 7, additive input pipe 8, protrusion 9, piston 10, piston rod 11, first spring 12, second spring 13, additive output pipe 14, double-axis motor 15, first output shaft 151, second output shaft 152, rotating block 16, variable height annular protrusion 161, material distribution box 17, fixed connecting rod 171, rotating pipe fitting 18, partition 19, through hole 191, liquid receiving pipe section 20, strip hole 21, driving gear 22, stirring shaft 23, driven gear 24, additive output hole 25, stirring rod 26. DETAILED DESCRIPTION

[0027] Embodiment 1: This embodiment provides a chemical additive delivery device for a sewage treatment pool, which includes but is not limited to the following components: Sewage treatment tank 1: provides a working environment for the entire device.

[0028] Track 2: It is set on the top of the sewage treatment tank to support and guide the movement of the movable base.

[0029] Movable base 3: arranged in track 2 and capable of moving freely on the track.

[0030] Roller 4: arranged at the bottom of the movable base 3, used to drive the movable base to move along the track.

[0031] Additive boxes 5: multiple, arranged in an annular distribution on the top of the movable base 3 to ensure that the spatial position of the additive output pipe 14 is reasonably arranged, and are used to store different types of chemical additives.

[0032] Additive inlet pipe 8: connected to the additive tank 5, used for conveying the additive stored externally into the additive tank.

[0033] Additive output pipe 14: connected to the bottom of the additive box 5, used to transport the additive from the additive box to the material distribution box.

[0034] Material distribution box 17: fixed to the bottom of the movable base 3 by a fixed connecting rod 171, used for receiving and mixing additives from the additive box 5.

[0035] Partition 19: A plurality of chambers are formed in the material distribution box 17 for preliminary mixing of different types of additives.

[0036] The liquid receiving pipe section 20 is arranged in the columnar area of ​​the material distribution box 17 and is used to receive the mixed additives and guide the additives to the rotating pipe member 18 through the strip holes 21.

[0037] Rotating pipe 18: It is arranged below the material distribution box 17 and is used to finally transport the additives to the sewage treatment tank.

[0038] The dual-axis motor 15 is arranged on the top of the movable base 3 and is used to drive the rotation of the movable block 6 and the piston mechanism inside the additive box 5 and the rotating pipe 18 .

[0039] The rotating block 16 is arranged on the first output shaft 151 of the dual-axis motor 15 and is used to drive the piston mechanism to rise and fall.

[0040] The stirring shaft 23 is arranged below the material distribution box 17 and is used to further mix the additives and the sewage.

[0041] The specific structure of the device is as follows: The device includes a track 2 arranged on the top of a sewage treatment tank 1 and a movable base 3 arranged in the track 2, a plurality of additive boxes 5 distributed in an annular direction are arranged on the top of the movable base 3, a material distribution box 17 is fixed to the bottom of the movable base 3 through a fixed connecting rod 171, and an additive output pipe 14 is arranged at the bottom of the plurality of additive boxes 5, and the additive output pipe 14 is connected to the material distribution box 17; The material distribution box 17 is formed with a plurality of chambers by a partition 19, and a plurality of additive output pipes 14 are respectively connected to different chambers. The partition 19 forms a columnar area in the middle of the material distribution box 17, and a liquid receiving pipe section 20 is provided in the columnar area. A plurality of vertically evenly distributed through holes 191 are provided on the side wall of the columnar area and the partition 9, and a strip hole 21 is provided on the side wall of the liquid receiving pipe section 20; A dual-axis motor 15 is provided on the top of the movable base 3, and a second output shaft 152 at the bottom of the dual-axis motor 15 passes downward through the movable base 3 and is connected to a rotating pipe 18 through a coupling. A liquid receiving pipe section 20 is provided in the middle of the rotating pipe 18, and an additive output hole 25 is provided on the lower end of the rotating pipe 18.

[0042] In a preferred solution, a roller 4 is provided at the bottom of the movable base 3 , and the roller 4 drives the movable base 3 to move on the track 2 .

[0043] In the preferred embodiment, an additive inlet pipe 8 is connected to the side wall of the additive box 5, a movable stopper 6 is provided in the additive box 5, a piston 10 is embedded on the bottom surface of the movable stopper 6, a piston rod 11 is connected to the top surface of the piston 10, and the piston rod 11 is arranged through the top surface of the movable stopper 6 and the top surface of the additive box 5.

[0044] In a preferred embodiment, a first output shaft 151 is provided on the top of the dual-axis motor 15. The first output shaft 151 extends upward to above the top surface of the additive box 5 and a rotating block 16 is provided on the upper end of the first output shaft 151. A downward-facing annular protrusion 161 is provided on the bottom surface of the rotating block 16. The annular protrusion 161 contacts the upper ends of the piston rods 11 extending from the top surfaces of the multiple additive boxes 5.

[0045] In a preferred solution, a first spring 12 is sleeved on the piston rod 11 in the additive box 5 , and a second spring 13 is sleeved on the piston rod 11 outside the additive box 5 .

[0046] In a preferred embodiment, a vertical groove 7 is provided on the inner wall of the additive box 5 , one end of the additive inlet pipe 8 is connected to the vertical groove 7 , and a protrusion 9 is provided on the outer wall of the movable stopper 6 , and the protrusion 9 is located in the vertical groove 7 .

[0047] In the preferred embodiment, a driving gear 22 is provided on the rotating pipe 18 below the material distribution box 17, and multiple stirring shafts 23 are movably provided on the bottom surface of the material distribution box 17. A driven gear 24 meshing with the driving gear 22 is provided on the upper part of the stirring shaft 23, and a stirring rod 26 is provided at the lower end of the stirring shaft 23.

[0048] Embodiment 2: The method for adding additives to a chemical additive adding device for a sewage treatment pool according to Example 1 specifically comprises the following steps: 1) The device drives the roller 4 through the driving system, so that the device moves on the track 2 to above the working area; 2) starting the delivery valves on the pipelines connected to the multiple additive inlet pipes 8; 3) The dual-axis motor 15 is started, and the first output shaft 151 drives the rotating block 16 to rotate and, under the action of the first spring 12 and the second spring 13, the movable blocks 6 and the pistons 10 in the multiple additive boxes 5 are sequentially lowered and raised; 4) Different additives are sequentially introduced into the additive box 5 and injected into different compartments in the material distribution box 17 after being pressurized by the piston 10. The additives in different compartments are preliminarily mixed through the through holes 191 on the partition 19; 5) The second output shaft 152 at the lower end of the dual-axis motor 15 drives the liquid receiving pipe section 20 to rotate at the same time, and the strip holes 21 on the liquid receiving pipe section 20 are aligned with different through holes 191 on the central cylindrical area of ​​the partition 19 in sequence, so as to realize the injection of different additives into the rotating pipe member 18; 6) The various additives injected into the rotating pipe 18 are outputted from the additive output hole 25 at the lower end of the rotating pipe 18 and are fully mixed with the sewage in the sewage treatment tank 1 under the action of the stirring rods 26 on both sides of the output position.

[0049] In a preferred solution, in step 3), the first spring 12 is kept in a compressed state and ensures the fit between the movable stopper 6 and the piston 10; The second spring 13 ensures that the movable stopper 6 and the piston 10 can be reset upward during the rotation of the rotating block 16; The elastic modulus of the first spring 12 is greater than the elastic modulus of the second spring 13 .

[0050] In a preferred solution, in step 6), the continuous rotation of the rotating tube 18 drives the direction of the additive output hole 25 to change, so that the additive can be evenly diffused around.

[0051] Embodiment 3: Based on the above embodiment 1, the following components and functions may be further added: Sensor integration: Temperature sensors, pressure sensors, etc. are integrated on the movable base 3 to monitor the working conditions in the additive box 5 to ensure that the additives are added under appropriate conditions.

[0052] Remote control system: Through the wireless communication module, the working status of the entire device can be remotely monitored and controlled, and the delivery parameters can be remotely adjusted.

[0053] Emergency stop button: An emergency stop button is provided on the movable base 3 to cope with emergencies.

[0054] When the above solution is adopted, the working status of the device can be monitored in real time through sensor integration and remote control system, and the delivery parameters can be adjusted as needed.

[0055] The setting of the emergency stop button improves the safety of the device and can quickly stop working under abnormal circumstances to avoid accidents.

[0056] The integration of sensors makes fault diagnosis more convenient and reduces maintenance costs.

[0057] Embodiment 4: Based on the above-mentioned embodiment 1, a modular chemical additive delivery device for a sewage treatment pool can be further provided. The characteristic of the device is that the number and type of additive boxes can be flexibly configured according to actual needs.

[0058] in: The movable base 3 is designed as a modular structure, and the number of additive boxes 5 can be increased or decreased as needed.

[0059] In addition to the standard additive tank 5, an additive tank with special functions, such as an additive tank with a heating or cooling function, may be added to meet the requirements of specific additives.

[0060] The modular design enables the device to adapt to different scales and types of sewage treatment needs.

[0061] By adding an additive box with special functions, it can better meet the requirements of special additives and improve the treatment effect.

[0062] Selecting and configuring additive boxes according to actual needs avoids unnecessary investment and reduces operating costs.

[0063] Embodiment 4: Based on the above-mentioned embodiment 1, a chemical additive dosing device for a sewage treatment pool which focuses on energy conservation can be further provided, which reduces energy consumption by optimizing the design and using energy-saving materials.

[0064] in: A high-efficiency energy-saving dual-shaft motor 15 is used to reduce power consumption.

[0065] The movable base 3 and other components are made of lightweight materials to reduce the overall weight and the energy required for driving.

[0066] Through optimized control algorithms, the best time and optimal amount of additives can be achieved, reducing unnecessary energy consumption.

[0067] Based on Examples 1-2, the chemical additive dosing device and method for a sewage treatment pool disclosed in the present invention have the following effects: High degree of automation: A dual-axis motor is used to drive the piston mechanism and rotating pipe inside the additive box, realizing the automatic transportation and delivery of additives; the movement of the rollers on the track enables the entire device to be automatically positioned above the sewage treatment tank, greatly reducing the need for manual intervention.

[0068] Accurate dosing: The piston mechanism combined with the design of the first spring and the second spring realizes the alternating quantitative dosing of different additives, which improves the accuracy of additive dosing; each additive box works independently and can accurately control the dosing amount of each additive according to a predetermined program, avoiding the problem of overdosage or underdosage.

[0069] Sufficient mixing: The preliminary mixing of additives in the distribution box is achieved through the through holes on the partition and the strip holes on the liquid receiving pipe section; the continuous rotation of the rotating pipe and the stirring action of the stirring rod ensure the sufficient mixing of the additives and sewage, thereby improving the efficiency of the chemical reaction.

[0070] Easy to operate: The entire device has a compact structure, which is easy to install and maintain; the automated delivery process simplifies the operating procedures and reduces the difficulty of operation.

Claims

1. A chemical additive dosing device for a sewage treatment tank, comprising a track (2) arranged on the top of the sewage treatment tank (1) and a movable base (3) arranged in the track (2), characterized in that: A plurality of additive boxes (5) distributed in an annular direction are provided on the top of the movable base (3); a material distribution box (17) is fixed to the bottom of the movable base (3) via a fixed connecting rod (171); additive output pipes (14) are provided at the bottom of the plurality of additive boxes (5); and the additive output pipes (14) are connected to the inside of the material distribution box (17); The material distribution box (17) has a plurality of chambers formed by a partition (19), and a plurality of additive output pipes (14) are respectively connected to different chambers. The partition (19) forms a columnar region in the middle of the material distribution box (17), and a liquid receiving pipe section (20) is provided in the columnar region. A plurality of vertically evenly distributed through holes (191) are provided on the side wall of the columnar region and the partition (9), and a strip hole (21) is provided on the side wall of the liquid receiving pipe section (20); A double-shaft motor (15) is provided on the top of the movable base (3); a second output shaft (152) at the bottom of the double-shaft motor (15) passes downward through the movable base (3) and is connected to a rotating pipe (18) via a coupling; a liquid receiving pipe section (20) is provided in the middle of the rotating pipe (18); and an additive output hole (25) is provided at the lower end of the rotating pipe (18).

2. The chemical additive dosing device for a sewage treatment pool according to claim 1, characterized in that: A roller (4) is provided at the bottom of the movable base (3), and the roller (4) drives the movable base (3) to move on the track (2).

3. The chemical additive dosing device for a sewage treatment pool according to claim 1, characterized in that: An additive inlet pipe (8) is connected to the side wall of the additive box (5), a movable stopper (6) is provided in the additive box (5), a piston (10) is embedded on the bottom surface of the movable stopper (6), a piston rod (11) is connected to the top surface of the piston (10), and the piston rod (11) passes through the top surface of the movable stopper (6) and the top surface of the additive box (5).

4. The chemical additive dosing device for a sewage treatment pool according to claim 3, characterized in that: A first output shaft (151) is provided on the top of the dual-axis motor (15), the first output shaft (151) extends upward to above the top surface of the additive box (5), and a rotating block (16) is provided on the upper end of the first output shaft (151), and a downwardly-protruding annular protrusion (161) is provided on the bottom surface of the rotating block (16), and the height-changing annular protrusion (161) contacts the upper ends of piston rods (11) extending from the top surfaces of the plurality of additive boxes (5).

5. The chemical additive dosing device for a sewage treatment pool according to claim 3, characterized in that: A first spring (12) is sleeved on the piston rod (11) inside the additive box (5), and a second spring (13) is sleeved on the piston rod (11) outside the additive box (5).

6. The chemical additive dosing device for a sewage treatment pool according to claim 3, characterized in that: The inner wall of the additive box (5) is provided with a vertical groove (7), one end of the additive inlet pipe (8) is connected to the vertical groove (7), and the outer wall of the movable stopper (6) is provided with a protrusion (9), which is located in the vertical groove (7).

7. The chemical additive dosing device for a sewage treatment pool according to claim 1, characterized in that: A driving gear (22) is provided on the rotating pipe member (18) below the material distribution box (17), a plurality of stirring shafts (23) are movably provided on the bottom surface of the material distribution box (17), a driven gear (24) meshing with the driving gear (22) is provided on the upper part of the stirring shaft (23), and a stirring rod (26) is provided at the lower end of the stirring shaft (23).

8. A method for adding additives to a chemical additive adding device for a sewage treatment pool according to any one of claims 1 to 6, characterized in that The following steps are involved: 1) The device drives the roller (4) through the drive system, so that the device moves on the track (2) to above the working area; 2) starting the delivery valves on the pipelines connected to the multiple additive inlet pipes (8); 3) starting the dual-axis motor (15), the first output shaft (151) drives the rotating block (16) to rotate and, under the action of the first spring (12) and the second spring (13), the movable blocks (6) and the pistons (10) in the plurality of additive boxes (5) are sequentially lowered and raised; 4) Different additives are sequentially introduced into the additive box (5) and injected into different compartments in the material distribution box (17) after being pressurized by the piston (10), and the additives in different compartments are preliminarily mixed through the through holes (191) on the partition (19); 5) The second output shaft (152) at the lower end of the dual-axis motor (15) drives the liquid receiving pipe section (20) to rotate simultaneously, and the strip holes (21) on the liquid receiving pipe section (20) are aligned with different through holes (191) on the central columnar region of the partition (19) in sequence, so as to realize the injection of different additives into the rotating pipe member (18); 6) The various additives injected into the rotating pipe member (18) are discharged from the additive output hole (25) at the lower end of the rotating pipe member (18) and are fully mixed with the sewage in the sewage treatment tank (1) under the action of the stirring rods (26) on both sides of the output position.

9. The method for adding additives to a chemical additive adding device for a sewage treatment pool according to claim 8, characterized in that: In the step 3), the first spring (12) remains in a compressed state and ensures the fit between the movable stopper (6) and the piston (10); The second spring (13) ensures that the movable stopper (6) and the piston (10) can perform an upward reset action during the rotation of the rotating block (16); The elastic modulus of the first spring (12) is greater than the elastic modulus of the second spring (13).

10. The method for adding additives to a chemical additive adding device for a sewage treatment pool according to claim 8, characterized in that: In the step 6), the continuous rotation of the rotating tube (18) drives the direction of the additive output hole (25) to change, so that the additive can be evenly diffused in all directions.

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