Chemical agent feeding device for subway sewage treatment

Abstract

The utility model discloses a chemical agent feeding device for subway sewage treatment relates to sewage treatment equipment technical field, including mixing jar, the top fixed mounting of mixing jar has agitator motor, the one side fixed mounting of mixing jar top has the assembly board, the top fixed mounting of assembly board has the installation base. The utility model drive motor realizes double function output through single power source, directly drive threaded conveying rod to complete reagent conveying, and through the linkage structure of connecting shaft, transmission shaft, transmission belt and drive shaft, synchronous belt drive auxiliary rod operation, the reagent of the top of feeding plate inner chamber is sent actively, effectively breaks the bridge, the accumulation problem of reagent because of damp, vibration, avoids the blockage of conveying channel from the source, ensures that reagent always falls into the spiral groove of threaded conveying rod in the state of continuous, uniform, provides stable and reliable feed guarantee for accurate quantitative conveying, and prevents the feeding deviation caused by the interruption or uneven of feeding.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, specifically to a chemical agent dosing device for subway wastewater treatment. Background Technology

[0002] Subway operations generate a large amount of domestic sewage and rainwater, which must be treated through the station's sewage treatment system before being discharged in compliance with standards. The addition of chemical agents is a crucial step in subway sewage treatment, requiring the addition of flocculants, disinfectants, and other agents to achieve sedimentation of impurities and sterilization.

[0003] Among the existing technical solutions, publication number CN218539339U discloses a chemical agent dosing device for wastewater treatment. This device is used to add chemical agents to a wastewater tank. The wastewater tank is connected to an inclined guide channel. The dosing device includes a holding trough for holding the chemical agents, which is fixed above the guide channel. The bottom of the holding trough has multiple discharge holes, and a conical rod for controlling the water flow is fitted inside each discharge hole.

[0004] During storage and descent, the chemicals are susceptible to bridging and accumulation within the dosing chamber due to vibrations from subway operation and ambient humidity. This can lead to blockages in the delivery channel, interruption of chemical feeding, and disruption of wastewater treatment continuity. Utility Model Content

[0005] The purpose of this invention is to provide a chemical agent dosing device for subway sewage treatment, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A chemical agent dosing device for subway sewage treatment includes a mixing tank, a stirring motor fixedly installed on the top of the mixing tank, an assembly plate fixedly installed on one side of the top of the mixing tank, an mounting base fixedly installed on the top of the assembly plate, a dispensing plate detachably installed inside the mounting base, a hopper fixedly installed on the top of the dispensing plate, and a feeding port opened at the front end of the dispensing plate.

[0008] Also includes:

[0009] A quantitative feeding mechanism is installed inside the feeding plate and is used to adjust the dosage of the agent for wastewater flow regulation.

[0010] A stabilizing mechanism is installed on top of the mounting base to stabilize the installation plate and resist vibrations during subway operation.

[0011] A further improvement of the present invention is that the quantitative feeding mechanism includes a drive plate, a drive motor is fixedly installed inside the drive plate, a threaded conveying rod is fixedly connected to the output end of the drive motor, and the other end of the threaded conveying rod is movably sleeved inside the feeding port.

[0012] A further improvement of this utility model is that: a connecting shaft is fixedly installed at one end of the threaded conveying rod near the drive motor, a transmission shaft is fixedly installed on the outside of the connecting shaft, a transmission belt is movably sleeved on the outside of the transmission shaft, a drive shaft is movably sleeved at the other end of the transmission belt, and an auxiliary rod is fixedly installed inside the drive shaft.

[0013] A further improvement of this utility model is that a stirring frame is fixedly installed on the outside of the auxiliary rod, and the stirring frame is located at the top of the threaded conveying rod to assist in feeding.

[0014] A further improvement of this utility model is that the interior of the feeding plate is shaped like a hopper, a guide plate is fixedly installed on the top of the feeding plate, and the top of the guide plate is fixedly installed on the bottom of the hopper.

[0015] A further improvement of the present invention is that the stabilizing mechanism includes a fixed plate, a rebound column is fixedly installed on the inner side of the top of the fixed plate, a clamp is fixedly connected to the telescopic end of the rebound column, and the inner side of the clamp is arranged on the outer side of the bottom of the delivery plate.

[0016] A further improvement of this utility model is that: the mounting base has assembly grooves at both ends, a connecting column is fixedly installed inside the assembly groove, and the outer side of the connecting column is movably sleeved on the bottom of the delivery plate.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides a chemical agent dosing device for subway sewage treatment. The chemical agent in the hopper falls with gravity and is accurately introduced into the dosing plate through the guide plate. The threaded conveying rod pushes the agent smoothly through the screw transmission structure, and the end point of the conveying is accurately connected with the dosing port to realize the directional dosing of the agent. By adjusting the driving parameters, the amount of material added per unit time is precisely controlled to ensure that the amount of agent added is dynamically matched with the amount of sewage, so as to ensure the optimal agent concentration required for sewage treatment and improve the stability and reliability of the treatment effect.

[0019] 2. This utility model provides a chemical agent dispensing device for subway sewage treatment. The drive motor achieves dual-function output through a single power source. It directly drives the threaded conveyor rod to complete the agent delivery, and through the linkage structure of the connecting shaft, transmission shaft, transmission belt and drive shaft, it synchronously drives the auxiliary rod to actively deliver the agent at the top of the inner cavity of the dispensing plate. This effectively solves the problems of bridging and accumulation of agents caused by moisture and vibration, avoids blockage of the delivery channel from the source, and ensures that the agent always falls into the spiral groove of the threaded conveyor rod in a continuous and uniform state. This provides a stable and reliable feeding guarantee for accurate quantitative delivery and eliminates the feeding deviation caused by interruption or uneven feeding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the dispensing plate structure of this utility model;

[0022] Figure 3 This is an enlarged view of point A in this utility model;

[0023] Figure 4 This is a schematic diagram of the transmission shaft structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the mounting base structure of this utility model.

[0025] In the diagram: 1. Mixing tank; 2. Agitator motor; 3. Assembly plate; 4. Mounting base; 5. Feeding plate; 6. Hopper; 7. Feeding port; 41. Assembly groove; 42. Connecting column; 43. Clamping plate; 44. Rebound column; 45. Fixing plate; 51. Guide plate; 52. Drive plate; 53. Auxiliary rod; 54. Agitator frame; 55. Threaded conveyor rod; 511. Connecting shaft; 552. Transmission shaft; 553. Transmission belt; 554. Drive shaft. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] like Figure 1-5 As shown, this utility model has the following three specific embodiments.

[0028] Example 1

[0029] This utility model provides a chemical agent dosing device for subway sewage treatment, including a mixing tank 1, a stirring motor 2 fixedly installed on the top of the mixing tank 1, an assembly plate 3 fixedly installed on one side of the top of the mixing tank 1, an installation base 4 fixedly installed on the top of the assembly plate 3, a dispensing plate 5 detachably installed inside the installation base 4, a hopper 6 fixedly installed on the top of the dispensing plate 5, and a feeding port 7 opened at the front end of the dispensing plate 5.

[0030] Also includes:

[0031] A quantitative feeding mechanism is installed inside the feeding plate 5 and is used to adjust the amount of chemical agent to be added to the wastewater flow.

[0032] The stabilizing mechanism is located on top of the mounting base 4 and is used to stabilize the installation plate 5 to resist vibrations during subway operation.

[0033] like Figure 1 As shown, before dispensing, the dispensing plate 5, which is equipped with the hopper 6 and the quantitative dispensing mechanism, is embedded into the mounting base 4. Through the cooperation of its built-in rigid positioning component and elastic buffer component, the dispensing plate 5 is firmly clamped to the top of the mounting base 4 for stable installation. The chemical agent pre-stored in the hopper 6 falls into the quantitative dispensing mechanism inside the dispensing plate 5 by gravity. The amount of agent is dispensed according to the volume of the mixing tank 1 and the dispensing mechanism.

[0034] Example 2

[0035] The difference from Embodiment 1 is that this embodiment discloses a drive plate 52 and a fixed plate 45. The quantitative feeding mechanism includes a drive plate 52, in which a drive motor is fixedly installed. The output end of the drive motor is fixedly connected to a threaded conveying rod 55, and the other end of the threaded conveying rod 55 is movably sleeved inside the feeding port 7. The inside of the feeding plate 5 is shaped like a hopper. A guide plate 51 is fixedly installed on the top of the feeding plate 5, and the top of the guide plate 51 is fixedly installed at the bottom of the hopper 6. The stabilizing mechanism includes a fixed plate 45, in which a rebound column 44 is fixedly installed on the inner side of the top of the fixed plate 45. A clamping plate 43 is fixedly connected to the telescopic end of the rebound column 44. The inner side of the clamping plate 43 is located on the outer side of the bottom of the feeding plate 5. Assembly slots 41 are opened at both ends of the mounting base 4. A connecting column 42 is fixedly installed inside the assembly slot 41, and the outer side of the connecting column 42 is movably sleeved at the bottom of the feeding plate 5.

[0036] like Figure 2 , 5As shown, during installation, the bottom of the integrated hopper 6 and the feeding plate 5 of the quantitative feeding mechanism are aligned with the assembly slots 41 at both ends of the mounting base 4, so that the bottom of the feeding plate 5 is movably sleeved on the outside of the connecting column 42 inside the assembly slot 41. The spring column 44 on the inner side of the top of the fixing plate 45 of the stabilizing mechanism releases the pre-tightening force, pushing the clamping plate 43 connected to the telescopic end to clamp inward, so that the clamping plate 43 is tightly attached to the outer side of the bottom of the feeding plate 5. When the subway vibration is transmitted to the device, the spring column 44 offsets the vibration impact force through telescopic deformation, avoiding rigid vibration of the feeding plate 5. At the same time, the movable sleeve structure between the bottom of the feeding plate 5 and the connecting column 42 allows the feeding plate 5 to swing slightly along the connecting column 42, further buffering the vibration to the inside. In addition to the influence of the quantitative feeding mechanism, the chemical agents stored in the hopper 6 fall under the action of gravity and are accurately guided into the interior of the feeding plate 5 by the guide plate 51 fixed on the top of the feeding plate 5. The hopper-shaped structure inside the feeding plate 5 forms a converging effect, concentrating the agent and guiding it to the area where the threaded conveying rod 55 is located. The threaded conveying rod 55 pushes the agent in the feeding plate 5 forward through the spiral structure. Its other end is movably sleeved inside the feeding port 7 to ensure that the end point of the agent delivery is accurately aligned with the feeding port 7. After the agent is accurately fed through the feeding port 7 into the mixing tank 1, the stirring motor 2 at the top is started. The motor output shaft drives the built-in stirring paddle to rotate at high speed, forming a strong convection stirring field, and then it is conveyed from the bottom of the mixing tank 1.

[0037] Example 3

[0038] The difference from Embodiment 2 is that this embodiment discloses a connecting shaft 511 and a stirring rack 54. The connecting shaft 511 is fixedly installed at one end of the threaded conveying rod 55 near the drive motor. A transmission shaft 552 is fixedly installed on the outside of the connecting shaft 511. A transmission belt 553 is movably sleeved on the outside of the transmission shaft 552. A drive shaft 554 is movably sleeved at the other end of the transmission belt 553. An auxiliary rod 53 is fixedly installed inside the drive shaft 554. A stirring rack 54 is fixedly installed on the outside of the auxiliary rod 53. The stirring rack 54 is located at the top of the threaded conveying rod 55 and is used to assist in feeding.

[0039] like Figure 3 , 4 As shown, the drive motor inside the drive plate 52 outputs power, which directly drives the threaded conveyor rod 55 to rotate. On the other hand, the connecting shaft 511 of the threaded conveyor rod 55 near the drive motor rotates synchronously, and the transmission shaft 552 outside the connecting shaft 511 rotates with it. The power is transmitted to the drive shaft 554 through the movably sleeved transmission belt 553. The drive shaft 554 then drives the internally fixed auxiliary rod 53 to rotate, pushing the medicine at the top of the inner cavity of the dispensing plate 5 downwards. This avoids bridging, accumulation or blockage of the medicine due to moisture or vibration, and ensures that the medicine falls continuously and evenly into the spiral groove of the threaded conveyor rod 55, providing stable feeding conditions for quantitative conveying.

[0040] The working principle of the chemical reagent dosing device used for subway sewage treatment will be explained in detail below.

[0041] like Figure 1-5 As shown, before feeding, the feeding plate 5, which contains the hopper 6 and the quantitative feeding mechanism, is embedded into the mounting base 4, so that the bottom of the feeding plate 5 is movably sleeved on the outside of the connecting column 42 in the assembly groove 41. The spring column 44 on the inner side of the top of the fixing plate 45 of the stabilizing mechanism releases the pre-tightening force, pushing the clamping plate 43 connected to the telescopic end to clamp inward, so that the clamping plate 43 is tightly attached to the outer side of the bottom of the feeding plate 5. When the subway vibration is transmitted to the device, the spring column 44 offsets the vibration impact force through telescopic deformation, avoiding rigid vibration of the feeding plate 5. At the same time, the movable sleeve structure between the bottom of the feeding plate 5 and the connecting column 42 allows the feeding plate 5 to swing slightly along the connecting column 42, further buffering the vibration on the internal quantitative feeding. In addition to the influence of the material feeding mechanism, the chemical agents stored in the hopper 6 fall under the action of gravity and are accurately guided into the interior of the feeding plate 5 by the guide plate 51 fixed on the top of the feeding plate 5. The hopper-shaped structure inside the feeding plate 5 forms a converging effect, concentrating the agent and guiding it to the area where the threaded conveying rod 55 is located. The threaded conveying rod 55 pushes the agent in the feeding plate 5 forward through the spiral structure. Its other end is movably sleeved inside the feeding port 7 to ensure that the end point of the agent delivery is accurately aligned with the feeding port 7. After the agent is accurately fed into the mixing tank 1 through the feeding port 7, the stirring motor 2 at the top is started. The output shaft of the motor drives the built-in stirring paddle to rotate at high speed, forming a strong convection mixing field, and then it is conveyed from the bottom of the mixing tank 1.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A chemical reagent dosing device for subway sewage treatment, comprising a mixing tank (1), characterized in that: A stirring motor (2) is fixedly installed on the top of the mixing tank (1). An assembly plate (3) is fixedly installed on one side of the top of the mixing tank (1). An installation base (4) is fixedly installed on the top of the assembly plate (3). A feeding plate (5) is detachably installed inside the installation base (4). A hopper (6) is fixedly installed on the top of the feeding plate (5). A feeding port (7) is opened at the front end of the feeding plate (5). Also includes: A quantitative feeding mechanism is installed inside the feeding plate (5) and is used to adjust the amount of wastewater flow regulating agent. A stabilizing mechanism is provided on top of the mounting base (4) to stabilize the installation plate (5) and resist vibrations during subway operation.

2. The chemical reagent dosing device for subway sewage treatment according to claim 1, characterized in that: The quantitative feeding mechanism includes a drive plate (52), a drive motor is fixedly installed inside the drive plate (52), and a threaded conveying rod (55) is fixedly connected to the output end of the drive motor. The other end of the threaded conveying rod (55) is movably sleeved inside the feeding port (7).

3. A chemical reagent dosing device for subway sewage treatment according to claim 2, characterized in that: The threaded conveying rod (55) has a connecting shaft (511) fixedly installed at one end near the drive motor. A transmission shaft (552) is fixedly installed on the outside of the connecting shaft (511). A transmission belt (553) is movably sleeved on the outside of the transmission shaft (552). A drive shaft (554) is movably sleeved on the other end of the transmission belt (553). An auxiliary rod (53) is fixedly installed inside the drive shaft (554).

4. A chemical reagent dosing device for subway sewage treatment according to claim 3, characterized in that: A stirring rack (54) is fixedly installed on the outside of the auxiliary rod (53). The stirring rack (54) is located at the top of the threaded conveying rod (55) and is used to assist in feeding.

5. A chemical reagent dosing device for subway sewage treatment according to claim 1, characterized in that: The inside of the feeding plate (5) is shaped like a hopper, and a guide plate (51) is fixedly installed on the top of the feeding plate (5). The top of the guide plate (51) is fixedly installed on the bottom of the hopper (6).

6. A chemical reagent dosing device for subway sewage treatment according to claim 1, characterized in that: The stabilizing mechanism includes a fixed plate (45), on the inner side of the top of the fixed plate (45) a rebound column (44) is fixedly installed, and the telescopic end of the rebound column (44) is fixedly connected to a clamping plate (43), the inner side of the clamping plate (43) is arranged on the outer side of the bottom of the delivery plate (5).

7. A chemical reagent dosing device for subway sewage treatment according to claim 1, characterized in that: The mounting base (4) has assembly slots (41) at both ends. A connecting column (42) is fixedly installed inside the assembly slot (41), and the outer side of the connecting column (42) is movably sleeved on the bottom of the delivery plate (5).

Images