A reagent adding structure for a wastewater treatment device

Abstract

The utility model relates to the field of equipment for wastewater treatment, especially a reaction agent adding structure for wastewater treatment device, reaction agent adding structure for wastewater treatment device includes: mounting seat, hollow tube, stirring assembly, cleaning pipe and cleaning component, the inside installation of mounting seat has the medicine storage bucket, the inside of medicine storage bucket is equipped with cavity no. 1 and cavity no. 2, the inside installation of medicine storage bucket has hollow tube, the utility model provides reaction agent adding structure for wastewater treatment device through the design of stirring assembly, makes hollow tube drive stirring blade rotation, combines electric push rod and drives stirring blade axial movement simultaneously, forms compound stirring movement. Only one motor and one electric push rod can complete the sufficient stirring of the medicine in two cavities, avoids the problem that two stirring equipment long -term synchronous operation in traditional design, power consumption superposition, significantly reduces the processing cost in large -scale wastewater treatment engineering, satisfies efficient, energy -conserving processing demand.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment, and in particular to a reactant addition structure for a wastewater treatment device. Background Technology

[0002] In various wastewater treatment projects, including industrial wastewater and domestic sewage, coagulation-flocculation is the core process for removing suspended solids, colloidal particles, some COD, and color. Its treatment effect directly determines the load of subsequent biological treatment and the final effluent quality. In this process, polyaluminum chloride (PAC) and polyacrylamide (PAM) are the most widely used combination agents: PAC, as an inorganic coagulant, achieves charge neutralization and destabilization of colloidal particles by hydrolysis to generate polynuclear hydroxyaluminum ions, forming micro-flocs; PAM, as an organic coagulant aid, aggregates micro-flocs into large and dense flocs through the adsorption and bridging effect of its ultra-long molecular chains, accelerating solid-liquid separation. The addition of both agents must meet the core requirements of "independent storage, stable dispersion, and accurate metering," and their mixing uniformity and addition timeliness directly affect the treatment efficiency. However, the existing reagent addition structure of wastewater treatment devices still has many technical defects and is difficult to adapt to the needs of high-efficiency and energy-saving treatment. The current mainstream reagent addition system adopts a separate layout of "dual independent tanks + dual sets of equipment", that is, PAC and PAM are stored in two independent storage tanks, each equipped with an independent stirring device, cleaning device and power system. Since both PAC and PAM have the characteristic of easy sedimentation when left to stand, the two types of reagents need to be continuously stirred during storage and addition to ensure uniform concentration. This design results in the two stirring devices having to run synchronously for a long time, with superimposed power consumption, which significantly increases the treatment cost, especially in large-scale wastewater treatment projects.

[0003] Therefore, it is necessary to provide a new reactant addition structure for wastewater treatment devices to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a reactant addition structure for a wastewater treatment device.

[0005] The wastewater treatment device reaction agent addition structure provided by this utility model includes: a mounting base, a hollow tube, a stirring assembly, a cleaning tube, and a cleaning assembly. A drug storage tank is installed inside the mounting base. The drug storage tank has a first cavity and a second cavity. A hollow tube is installed inside the drug storage tank. A stirring assembly is installed between the drug storage tank and the hollow tube. The stirring assembly is used to stir the additives inside the first cavity and the second cavity. Cleaning tubes are symmetrically installed at equal intervals on the outer wall of the hollow tube. A cleaning assembly is installed between the drug storage tank and the cleaning tube. The cleaning assembly is used to clean the inner walls of the first cavity and the second cavity.

[0006] Preferably, the stirring assembly includes: a motor, a gear, a gear ring, and stirring blades. One end of the mounting base is fixedly connected to the motor, and its output end is fixedly connected to the gear. The outer wall of the hollow tube near the motor is fixedly fitted with a gear ring, which meshes with the gear. The outer wall of the hollow tube is symmetrically and equidistantly fitted with stirring blades, and the stirring blades inside the first cavity and the second cavity are symmetrically distributed.

[0007] Preferably, the medicine storage tank has two rotating blocks inside, one of which is rotatably connected to the side wall of the medicine storage tank away from the motor, and the other is rotatably connected to the partition in the middle of the medicine storage tank, and both of the rotating blocks are sleeved on the outer wall of the hollow tube.

[0008] Preferably, an electric push rod is fixedly connected to the end of the mounting base away from the motor, and a circular plate is rotatably connected to its output end. Connecting rods are fixedly connected to the side wall of the circular plate at equal intervals around its circumference. The other end of each connecting rod passes through the interior of the two rotating blocks and is slidably connected to them. The outer wall of each connecting rod is fixedly connected to a number of stirring blades.

[0009] Preferably, the cleaning components include: a water pump, a water storage tank, and an arc-shaped valve plate. The water pump is fixedly connected to one end of the mounting base near the motor, and its output end is fixedly connected to an L-shaped connecting pipe. The other end of the L-shaped connecting pipe is rotatably connected to the end of the hollow tube near the motor. The water storage tank is placed inside the mounting base. The input end of the water pump is connected to the inside of the water storage tank through a pipe. Arc-shaped valve plates are symmetrically rotatably connected to the inside of the cleaning tubes near the hollow tube.

[0010] Preferably, the top of the medicine storage tank is symmetrically equipped with feeding ports corresponding to cavity one and cavity two, and the bottom is symmetrically equipped with discharging ports corresponding to cavity one and cavity two. The bottom of each discharging port is connected to a conveying pipe, and a metering pump is installed in the middle of each conveying pipe.

[0011] Compared with related technologies, the reactant addition structure for the wastewater treatment device provided by this utility model has the following beneficial effects: The storage tank is equipped with two chambers, one for storing two different reagents, such as PAC and PAM, which can be stored independently. Compared with the traditional separate layout of "two independent tanks + two sets of equipment", it reduces the need for a separate stirring device, cleaning device and power system, effectively reducing the equipment purchase cost.

[0012] The design of the stirring assembly allows the hollow tube to drive the stirring blades to rotate, while the electric actuator simultaneously moves the stirring blades axially, creating a combined stirring motion. Only one motor and one electric actuator are needed to fully stir the reagents in both chambers, avoiding the problem of cumulative power consumption caused by the long-term synchronous operation of two stirring devices in traditional designs. This significantly reduces treatment costs in large-scale wastewater treatment projects and meets the requirements for high-efficiency and energy-saving treatment.

[0013] Through the design of the cleaning components, the water pump is started to pressurize and deliver the cleaning liquid in the water tank to the inside of the hollow tube, so that the cleaning liquid enters the cleaning tube and is sprayed out at high speed from the nozzle on the outer wall. At the same time, the motor is started to drive the hollow tube and the cleaning tube to rotate synchronously, which can thoroughly rinse the inner walls of the first and second cavities, effectively remove residual agents, prevent residual agents from clumping and contaminating subsequent agents, and ensure the long-term stable operation of the equipment. Attached Figure Description

[0014] Figure 1 A schematic diagram of the reactant addition structure for the wastewater treatment device provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the medicine storage tank. Figure 3 for Figure 2 The diagram shows the structure at point A. Figure 4 for Figure 2 The diagram shows the structure of the hollow tube. Figure 5 for Figure 4 The diagram shows the structure at point B.

[0015] The following are the labels in the diagram: 1. Mounting base; 2. Medicine storage tank; 201. Cavity 1; 202. Cavity 2; 3. Hollow tube; 4. Cleaning tube; 5. Motor; 6. Gear; 7. Gear ring; 8. Stirring blade; 9. Rotating block; 10. Electric push rod; 11. Circular plate; 12. Connecting rod; 13. Water pump; 14. Water storage tank; 15. Arc-shaped valve plate; 16. Metering pump. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 5A reactant addition structure for a wastewater treatment device is disclosed. The reactant addition structure includes: a mounting base 1, a hollow tube 3, a stirring assembly, a cleaning tube 4, and a cleaning assembly. A drug storage tank 2 is installed inside the mounting base 1. The drug storage tank 2 has a first cavity 201 and a second cavity 202 inside. The hollow tube 3 is installed inside the drug storage tank 2. A stirring assembly is installed between the drug storage tank 2 and the hollow tube 3. The stirring assembly is used to stir the additives inside the first cavity 201 and the second cavity 202. The cleaning tube 4 is symmetrically installed at equal intervals on the outer wall of the hollow tube 3. The cleaning assembly is installed between the drug storage tank 2 and the cleaning tube 4. The cleaning assembly is used to clean the inner walls of the first cavity 201 and the second cavity 202.

[0019] The stirring assembly includes a motor 5, a gear 6, a gear ring 7, and stirring blades 8. One end of the mounting base 1 is fixedly connected to the motor 5, and its output end is fixedly connected to the gear 6. The outer wall of the hollow tube 3 near the motor 5 is fixedly fitted with a gear ring 7, which meshes with the gear 6. The outer wall of the hollow tube 3 is symmetrically and equidistantly fitted with stirring blades 8, and the stirring blades 8 inside the cavity 1 201 and the cavity 2 202 are symmetrically distributed.

[0020] The medicine storage tank 2 has two rotating blocks 9 inside, one of which is rotatably connected to the side wall of the medicine storage tank 2 away from the motor 5, and the other is rotatably connected to the partition in the middle of the medicine storage tank 2. Both of the rotating blocks 9 are sleeved on the outer wall of the hollow tube 3.

[0021] An electric push rod 10 is fixedly connected to one end of the mounting base away from the motor 5. A circular plate 11 is rotatably connected to the output end of the rod. A connecting rod 12 is fixedly connected to the side wall of the circular plate 11 at equal intervals around its circumference. The other end of the connecting rod 12 passes through the interior of the two rotating blocks 9 and is slidably connected to them. The outer wall of the connecting rod 12 is fixedly connected to several stirring blades 8.

[0022] The cleaning components include: a water pump 13, a water tank 14, and an arc-shaped valve plate 15. The water pump 13 is fixedly connected to one end of the mounting base 1 near the motor 5, and its output end is fixedly connected to an L-shaped connecting pipe. The other end of the L-shaped connecting pipe is rotatably connected to the end of the hollow tube 3 near the motor 5. The water tank 14 is placed inside the mounting base 1. The input end of the water pump 13 is connected to the inside of the water tank 14 through a pipe. Several cleaning tubes 4 are symmetrically rotatably connected to the end of the hollow tube 3.

[0023] The top of the medicine storage tank 2 is symmetrically equipped with feeding ports corresponding to the first cavity 201 and the second cavity 202, and the bottom is symmetrically equipped with discharge ports corresponding to the first cavity 201 and the second cavity 202. The bottom of each discharge port is connected to a conveying pipe, and a metering pump 16 is installed in the middle of each conveying pipe.

[0024] It should be noted that: the bottom of the hollow tube 3 is provided with a protrusion, and the stirring blade 8 is sleeved on the outer wall of the hollow tube 3. Under the restriction of the protrusion, the rotation of the hollow tube 3 drives the stirring blade 8 to rotate synchronously. At the same time, after the electric push rod 10 is started, the stirring blade 8 can be pulled back and forth along the axis of the hollow tube 3 through the connecting rod 12. The outer wall of the cleaning pipe 4 is provided with nozzles at equal intervals. The inner wall of the cleaning pipe 4 is provided with an annular magnetic sheet near the arc-shaped valve plate 15. The arc-shaped valve plate 15 is in a closed state in the initial state. After the water pump 13 is started, the high-pressure water flows through and pushes the arc-shaped valve plate 15 open. After the water pump 13 is turned off, the arc-shaped valve plate 15 automatically closes under the action of magnetic force. A sealing gasket is installed at the connection between the hollow tube 3 and the L-shaped connecting tube. The bottom of the medicine storage tank 2 is equipped with a drain port corresponding to cavity 1 201 and cavity 2 202, and an observation window is opened on the side wall.

[0025] The working principle of the reactant addition structure in the wastewater treatment device provided by this utility model is as follows: According to the wastewater treatment process requirements, two agents, PAC and PAM, are added separately through the feeding ports of the corresponding chambers at the top of the storage tank 2. PAC is added to chamber 1 (201) and PAM is added to chamber 2 (202) to ensure that the two agents are stored independently and to avoid premature mixing, which would reduce their efficacy.

[0026] Add appropriate amounts of diluted liquid into cavity 1 (201) and cavity 2 (202) through the feeding port. The amount of liquid added is controlled according to the required concentration of the reagent to complete the initial preparation of the reagent and prepare for subsequent efficient stirring.

[0027] Next, the motor 5 fixed on the mounting base 1 is started, and the output end of the motor 5 drives the gear 6 fixedly connected to it to rotate. Since the gear 6 meshes with the toothed ring 7 fixedly sleeved on the outer wall of the hollow tube 3 near the motor 5, the rotation of the gear 6 drives the hollow tube 3 to rotate around its own axis. The rotation of the hollow tube 3 synchronously drives the cleaning tube 4, which is symmetrically installed at equal intervals on its outer wall, and the stirring blade 8 slidably sleeved on it to rotate. The stirring blade 8 in cavity one 201 and cavity two 202 respectively perform preliminary rotation and stirring of the agent in the corresponding cavity, breaking the tendency of the agent to precipitate.

[0028] During the rotation of the hollow tube 3, the stirring blade 8 drives the two rotating blocks 9 connected inside the medicine storage tank 2 to rotate synchronously via the connecting rod 12. As the rotating blocks 9 rotate, they guide and stabilize the connecting rod 12, preventing it from shifting during subsequent movement.

[0029] The electric push rod 10 is activated. Fixed at the end of the mounting base 1 furthest from the motor 5, its output end is rotatably connected to the circular plate 11, ensuring that the circular plate 11 rotates synchronously with the connecting rod 12. The electric push rod 10 performs reciprocating extension and retraction, driving the circular plate 11 to move back and forth along the axis of the hollow tube 3. The connecting rod 12, equidistantly fixed around the side wall of the circular plate 11, moves synchronously. Since the other end of the connecting rod 12 passes through two rotating blocks 9 and is fixedly connected to the stirring blade 8, its movement drives the stirring blade 8 to slide back and forth along the axial direction of the hollow tube 3. At this time, the stirring blade 8 simultaneously rotates around the hollow tube 3 and moves along the axial direction of the hollow tube 3, forming a compound stirring motion that thoroughly agitates the reagents in cavity one 201 and cavity two 202, effectively preventing reagent sedimentation at the bottom of the cavities and ensuring uniform reagent concentration in each area.

[0030] The stirring time is set according to the characteristics of the drug. During the stirring process, the internal mixing state can be monitored through the observation window of the drug storage tank 2 to ensure that the drug is fully dissolved and mixed.

[0031] After the reagents are stirred, the dosage of the two metering pumps 16 is set by the control system according to the process parameters such as wastewater flow rate and pollutant concentration to ensure that the two reagents are added in the optimal ratio and to give full play to the coagulation effect of PAC and the coagulation aid effect of PAM.

[0032] Open the discharge valve at the bottom of the corresponding cavity of the storage tank 2, allowing the evenly mixed reagent to flow into the bottom-connected delivery pipe. Start the metering pump 16, which precisely extracts the reagent from the delivery pipe according to the set parameters and delivers it to the wastewater treatment reaction tank. Specifically, PAC in cavity one 201 is added via the corresponding metering pump 16, while PAM in cavity two 202 is added via another metering pump 16, achieving independent and precise addition of the two reagents. After use, turn off the motor 5 and the electric push rod 10, and all components will stop operating.

[0033] When it is necessary to clean the inside of the medicine storage tank 2, the cleaning component is activated to perform a comprehensive cleaning of the dual chambers of the medicine storage tank 2, so as to avoid residual medicine clumping and contaminating subsequent medicines, and to ensure the long-term stable operation of the equipment.

[0034] Open the drain valve at the bottom of the medicine storage tank 2 and start the water pump 13. The input end of the water pump 13 draws cleaning solution from the water storage tank 14 through a pipe. After being pressurized by the water pump 13, the cleaning solution is delivered to the hollow tube 3 through the L-shaped connecting pipe fixed at its output end. Since the L-shaped connecting pipe is rotatably connected to the end of the hollow tube 3 near the motor 5, it can prevent the pipe from being twisted and damaged when the hollow tube 3 rotates. As the cleaning solution is continuously injected, the pressure inside the hollow tube 3 increases, and the pressure is transmitted to the cleaning tube 4, which pushes open the arc-shaped valve plate 15 that is symmetrically rotatably connected inside the cleaning tube 4 near the end of the hollow tube 3, allowing the cleaning solution to enter the cleaning tube 4.

[0035] Start motor 5 to drive hollow tube 3 and cleaning tube 4 to rotate synchronously. Cleaning liquid is sprayed out at high speed through nozzles that are equidistantly arranged on the outer wall of cleaning tube 4, forming a fan-shaped water flow to thoroughly rinse the inner walls of cavity 1 201 and cavity 2 202. The wastewater generated during cleaning carries residual agents and is continuously discharged through the bottom drain port until the discharged wastewater is clear and transparent, indicating that the cavity is clean.

[0036] After confirming the cavity is clean, turn off water pump 13 to stop the delivery of cleaning fluid. As the pressure inside hollow tube 3 and cleaning tube 4 decreases, the arc-shaped valve plate 15 returns to its original position and closes under its own gravity, preventing external impurities from entering. Then, close motor 5 and drain valve to complete the entire cleaning process.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reactant addition structure for a wastewater treatment device, characterized in that, include: Mounting base (1), inside which a medicine storage tank (2) is installed, and inside the medicine storage tank (2) are cavity one (201) and cavity two (202); Hollow tube (3) is installed inside the medicine storage tank (2); A stirring assembly is installed between the drug storage tank (2) and the hollow tube (3). The stirring assembly is used to stir the additives inside the cavity one (201) and the cavity two (202). Cleaning tube (4) is installed symmetrically at equal intervals on the outer wall of the hollow tube (3); A cleaning assembly is installed between the medicine storage tank (2) and the cleaning tube (4). The cleaning assembly is used to clean the inner walls of cavity one (201) and cavity two (202).

2. The reactant addition structure for the wastewater treatment device according to claim 1, characterized in that, The stirring assembly includes a motor (5), a gear (6), a gear ring (7), and a stirring blade (8). One end of the mounting base (1) is fixedly connected to the motor (5), and its output end is fixedly connected to the gear (6). The outer wall of the hollow tube (3) near the motor (5) is fixedly fitted with a gear ring (7), which meshes with the gear (6). The outer wall of the hollow tube (3) is equidistantly and symmetrically fitted with stirring blades (8), and the stirring blades (8) inside the cavity one (201) and the cavity two (202) are symmetrically distributed.

3. The reactant addition structure for the wastewater treatment device according to claim 2, characterized in that, The medicine storage tank (2) has two rotating blocks (9) inside. One of them is rotatably connected to the side wall of the medicine storage tank (2) away from the motor (5), and the other is rotatably connected to the partition in the middle of the medicine storage tank (2). Both of the rotating blocks (9) are sleeved on the outer wall of the hollow tube (3).

4. The reactant addition structure for the wastewater treatment device according to claim 3, characterized in that, An electric push rod (10) is fixedly connected to one end of the mounting base (1) away from the motor (5). A circular plate (11) is rotatably connected to its output end. A connecting rod (12) is fixedly connected to the side wall of the circular plate (11) at equal intervals around its circumference. The other end of the connecting rod (12) passes through the interior of the two rotating blocks (9) and is slidably connected to them. The outer wall of the connecting rod (12) is fixedly connected to several stirring blades (8).

5. The reactant addition structure for the wastewater treatment device according to claim 1, characterized in that, The cleaning components include: a water pump (13), a water tank (14), and an arc-shaped valve plate (15). The water pump (13) is fixedly connected to one end of the mounting base (1) near the motor (5), and its output end is fixedly connected to an L-shaped connecting pipe. The other end of the L-shaped connecting pipe is rotatably connected to one end of the hollow tube (3) near the motor (5). The water tank (14) is placed inside the mounting base (1). The input end of the water pump (13) is connected to the inside of the water tank (14) through a pipe. Several cleaning tubes (4) are symmetrically rotatably connected to the arc-shaped valve plate (15) at one end near the hollow tube (3).

6. The reactant addition structure for the wastewater treatment device according to claim 1, characterized in that, The top of the medicine storage tank (2) is symmetrically equipped with feeding ports corresponding to the first cavity (201) and the second cavity (202), and the bottom is symmetrically equipped with discharge ports corresponding to the first cavity (201) and the second cavity (202). The bottom of the discharge ports is connected to a conveying pipe, and a metering pump (16) is installed in the middle of the conveying pipe.

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