A sewage treatment dosing device

Abstract

The utility model discloses a sewage treatment dosing device, including base, the base top fixed mounting has mixing tank and temporary storage tank, the mixing tank top installs the stirring subassembly, and the mixing tank top wall is equipped with the feeding opening and is equipped with the water pipe of installation, the mixing tank top is close to the installation of feeding assembly of feeding opening portion, the base upper surface installs the pump body, in the utility model, set up mixing tank, temporary storage tank, stirring subassembly, feeding assembly, pump body and plugging component, first through feeding assembly and add PAM powder in mixing tank, utilize stirring subassembly to water and PAM powder stirring dissolution, and in the process of adding PAM powder, through the dispersing plate of stirring subassembly, PAM powder is beaten and dispersed, avoids the caking, after mixing, utilize the pump body and store in the temporary storage tank of mixed liquid, promptly clean the mixing tank and pump body, avoid PAM medicament pump body and valve dead angle deposition, gelatinization and cause pump body and valve block up.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment dosing device. Background Technology

[0002] A PAM dosing system is an automated equipment system for the precise preparation, mixing, and dosing of polyacrylamide (PAM) solutions. PAM is a highly efficient polymeric flocculant widely used in water treatment, petroleum, chemical, papermaking, and metallurgical industries, primarily for coagulation, flocculation, sedimentation, and sludge dewatering. Due to its highly viscous solution and issues such as fish-eye and clumping during preparation, traditional manual preparation methods are inefficient, inaccurate, wasteful, and produce inconsistent results. Therefore, the PAM dosing system is a specialized, automated device designed to solve these problems. Its dissolving system includes a dry powder dosing machine for the automatic and quantitative addition of PAM dry powder. Various types are available, including screw feeders and vacuum suction feeders, ensuring uniform and stable powder dosing.

[0003] However, existing PAM dosing devices have the following drawbacks: First, and this is the most critical and common defect of PAM dosing devices, polyacrylamide (PAM) polymer chains are long and easily swell and adhere to each other when exposed to water, forming an "eye-like" insoluble substance that is gelled on the outside but remains a dry powder on the inside. Traditional devices rely solely on simple mechanical stirring, which is insufficient to effectively break up these clumps, resulting in incomplete dissolution. Second, the mixed PAM solution has extremely high viscosity, and when the flow rate in the pipeline is too low or the equipment is shut down, it is very easy to deposit and gel in dead corners of the pipeline and tank, causing serious blockages. Therefore, further improvements are needed. To this end, we propose a wastewater treatment dosing device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wastewater treatment dosing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater treatment dosing device, comprising a base, a mixing tank and a temporary storage tank fixedly installed on the base, a stirring assembly installed on the top of the mixing tank, and a feeding port and a water supply pipe installed on the top wall of the mixing tank, a feeding assembly installed on the top of the mixing tank near the feeding port, a pump body installed on the upper surface of the base, and a suction pipe and a discharge pipe fixedly connected to the inlet and outlet of the pump body, respectively, the suction pipe communicating with the bottom of the mixing tank, the other end of the discharge pipe extending through the top wall of the temporary storage tank into the interior of the temporary storage tank, a waste discharge pipe fixedly connected to the side wall of the discharge pipe, a sealing assembly installed on the top wall of the temporary storage tank near the discharge pipe, a dosing pipe fixedly connected to the bottom end of the side wall of the temporary storage tank, the dosing pipe being gooseneck shaped, and an air pump installed on the top of the temporary storage tank, the air outlet of the air pump and the top wall of the temporary storage tank being connected together by an air supply pipe.

[0006] Furthermore, the feeding assembly includes a hopper, and a screw conveyor is installed at the bottom of the hopper, with the discharge port of the screw conveyor located above the feeding port.

[0007] Furthermore, the stirring assembly includes a motor fixed to the upper surface of the mixing tank, a vertical shaft fixed to the output end of the motor, a stirring blade fixedly connected to the bottom end of the vertical shaft, and multiple dispersing plates fixed to the top end of the vertical shaft, with the dispersing plates located below the feeding port.

[0008] Furthermore, a first valve and a second valve are respectively fixed in the middle of the liquid extraction pipe and the waste discharge pipe.

[0009] Furthermore, the sealing assembly includes an electric telescopic rod fixed to the top of the temporary storage tank. The telescopic end of the electric telescopic rod passes through the top wall of the temporary storage tank and is fixedly connected to a blocking plate. The blocking plate is located directly below the drain pipe.

[0010] Furthermore, a sealing cap is rotatably connected to the surface of the dosing pipe at the end away from the temporary storage tank via a threaded connection.

[0011] Furthermore, a one-way valve is connected to the middle of the gas pipeline.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model includes a mixing tank, a temporary storage tank, a stirring assembly, a feeding assembly, a pump body, and a sealing assembly. First, PAM powder is added to the mixing tank through the feeding assembly. The stirring assembly is used to stir and dissolve the water and PAM powder. During the addition of PAM powder, the dispersing plate of the stirring assembly is used to disperse the PAM powder to prevent clumping. After mixing, the mixed solution is pumped into the temporary storage tank for storage. The mixing tank and pump body are immediately cleaned to prevent PAM agent from accumulating and gelling in dead corners of the pump body and valves, which could cause blockage of the pump body and valves.

[0014] 2. In use, this utility model is equipped with a temporary storage tank, a sealing component and an air pump. The air pump inflates the inside of the temporary storage tank to increase the internal pressure, thereby squeezing out the liquid medicine inside the temporary storage tank. No valves or pumps are installed in the temporary storage tank to discharge the liquid medicine, so as to avoid blockage. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is an overall sectional view of the present invention;

[0017] Figure 2 This is a partial perspective view of the present invention;

[0018] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Base; 2. Mixing tank; 21. Feeding port; 3. Temporary storage tank; 4. Stirring assembly; 41. Motor; 42. Vertical shaft; 43. Stirring blades; 44. Dispersion plate; 5. Feeding assembly; 51. Hopper; 52. Screw conveyor; 6. Water supply pipe; 7. Pump body; 71. Liquid extraction pipe; 72. First valve; 73. Liquid discharge pipe; 74. Waste discharge pipe; 75. Second valve; 8. Sealing assembly; 81. Electric telescopic rod; 82. Blocking plate; 9. Dosing pipe; 10. Sealing cover; 11. Air pump. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a wastewater treatment dosing device is disclosed, comprising a base 1, a mixing tank 2 and a temporary storage tank 3 fixedly installed on the base 1, a stirring assembly 4 installed on the top of the mixing tank 2, and a feeding port 21 and a water supply pipe 6 installed on the top wall of the mixing tank 2, a feeding assembly 5 installed on the top of the mixing tank 2 near the feeding port 21, a pump body 7 installed on the upper surface of the base 1, and a suction pipe 71 and a discharge pipe 73 fixedly connected to the inlet and outlet of the pump body 7, respectively, the suction pipe 71 communicating with the bottom of the mixing tank 2, the other end of the discharge pipe 73 extending through the top wall of the temporary storage tank 3 into the interior of the temporary storage tank 3, a waste discharge pipe 74 fixedly connected to the side wall of the discharge pipe 73, a sealing assembly 8 installed on the top wall of the temporary storage tank 3 near the discharge pipe 73, a dosing pipe 9 fixedly connected to the bottom end of the side wall of the temporary storage tank 3, and the dosing pipe 9 being gooseneck shaped, an air pump 11 installed on the top of the temporary storage tank 3, and an air supply pipe connected to the air outlet of the air pump 11 and the top wall of the temporary storage tank 3.

[0023] The feeding assembly 5 includes a hopper 51, and a screw conveyor 52 is installed at the bottom of the hopper 51. The discharge port of the screw conveyor 52 is located above the feeding port 21.

[0024] In this embodiment, the feeding component 5 adopts the existing technology. The hopper 51 is used to store PAM powder. The screw conveyor 52 conveys the PAM powder to the feeding port 21 side, so that the PAM powder enters the mixing tank 2 from the feeding port 21.

[0025] The stirring assembly 4 includes a motor 41 fixed to the upper surface of the mixing tank 2. A vertical shaft 42 is fixed to the output end of the motor 41. A stirring blade 43 is fixedly connected to the bottom end of the vertical shaft 42. Multiple dispersing plates 44 are fixed to the top end of the vertical shaft 42, and the dispersing plates 44 are located below the feeding port 21.

[0026] By starting the motor 41, the vertical shaft 42 can be rotated, thereby using the stirring blades 43 at the bottom of the vertical shaft 42 to stir and mix the water and PAM powder. When the PAM powder falls from the feed port 21, the dispersing plate 44 at the top of the vertical shaft 42 can also beat and disperse the PAM powder, so that the PAM powder falls evenly on the surface of the water and avoids clumping.

[0027] The middle sections of the liquid extraction pipe 71 and the waste discharge pipe 74 are respectively fixed with a first valve 72 and a second valve 75.

[0028] The sealing assembly 8 includes an electric telescopic rod 81 fixed to the top of the temporary storage tank 3. The telescopic end of the electric telescopic rod 81 passes through the top wall of the temporary storage tank 3 and is fixedly connected to a blocking plate 82. The blocking plate 82 is located directly below the drain pipe 73.

[0029] Before the medicine in the mixing tank 2 is pumped into the temporary storage tank 3 through the pump body 7, the first valve 72 is opened and the second valve 75 is closed. Then the electric telescopic rod 81 is activated to extend, so that the blocking plate 82 descends and separates from the drain pipe 73. Finally, the pump body 7 is activated, so that the mixed medicine enters the temporary storage tank 3 along the suction pipe 71 and the drain pipe 73.

[0030] After the liquid medicine is added to the temporary storage tank 3, the mixing tank 2, pump body 7, and first valve 72 and second valve 75 are flushed. At this time, the electric telescopic rod 81 is activated to shorten and drive the blocking plate 82 to block the drain pipe 73. Then the second valve 75 is opened, and clean water is added to the mixing tank 2 through the water inlet pipe 6. The motor 41 is started to drive the stirring blade 43 to rotate to clean the mixing tank 2. After cleaning, the cleaning water is pumped out through the pump body 7. The water passes through the liquid extraction pipe 71, first valve 72, pump body 7, waste discharge pipe 74, and second valve 75 to clean the pump body 7 and valves, so as to avoid the PAM liquid medicine from gelling and causing the pump body 7 and valves to become blocked.

[0031] The surface of the dosing pipe 9, away from the temporary storage tank 3, is connected to a sealing cap 10 by a threaded rotation.

[0032] A one-way valve is connected in the middle of the gas pipeline.

[0033] When using this device, the dosing pipe 9 is located at the top of the sewage treatment tank. When it is necessary to add PAM solution from the temporary storage tank 3 to the sewage treatment tank, keep the plug plate 82 blocking the drain pipe 73, unscrew the sealing cap 10, turn on the air pump 11, and inflate the temporary storage tank 3 with air through the air pump 11 to increase the air pressure at the top of the temporary storage tank 3, thereby squeezing the PAM solution at the bottom along the dosing pipe 9, and finally the PAM solution enters the sewage tank.

[0034] In this embodiment, a control cabinet is also installed on the base 1. The control cabinet adopts the same control system as existing technology. The motor 41, screw conveyor 52, air pump 11, and pump body 7 are all controlled by the control cabinet. This solution only adds a temporary storage tank 3 and changes the pipeline connection method. The control system is a mature existing technology, and its principle will not be elaborated here.

[0035] Working principle: The mixing tank 2 installed on the base 1 stores PAM powder through the hopper 51 of the feeding assembly 5. The powder is conveyed from the feeding port 21 to the mixing tank 2 via the screw conveyor 52. At the same time, water is injected into the tank through the water pipe 6 (the existing screw conveyor itself can control the amount of powder added, and the amount of water added can be controlled by adding a flow valve to the water pipe 6); the motor 41 of the stirring assembly 4 drives the vertical shaft 42 to rotate, which drives the top dispersing plate 44 to beat and disperse the falling powder to prevent agglomeration. At the same time, the bottom stirring blades 43 stir the mixture; after mixing is completed, the pump body 7 is started. When the first valve 72 is open and the second valve 75 is closed, the electric telescopic rod 81 extends, causing the blocking plate 82 of the sealing assembly 8 to move down and open the channel. The liquid medicine enters the temporary storage tank 3 through the suction pipe 71 and the discharge pipe 73 for temporary storage. When it is necessary to add medicine, the sealing cap 10 is unscrewed from the gooseneck-shaped dosing pipe 9. The air pump 11 pressurizes the top of the temporary storage tank 3 through the air supply pipe, and the liquid medicine is forced out from the dosing pipe 9 to the sewage treatment tank. When cleaning, the blocking plate 82 moves up to block the discharge pipe 73, the second valve 75 is opened, and clean water enters the mixing tank 2 for rinsing and is discharged by the pump body 7 through the waste discharge pipe 74, realizing the anti-clogging cleaning of the system.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater treatment dosing device, comprising a base (1), characterized in that: A mixing tank (2) and a temporary storage tank (3) are fixedly installed on the top of the base (1). A stirring assembly (4) is installed on the top of the mixing tank (2), and a feeding port (21) and a water supply pipe (6) are provided on the top wall of the mixing tank (2). A feeding assembly (5) is installed on the top of the mixing tank (2) near the feeding port (21). A pump body (7) is installed on the upper surface of the base (1), and a liquid inlet and a liquid outlet of the pump body (7) are fixedly connected to a liquid extraction pipe (71) and a liquid discharge pipe (73), respectively. The liquid extraction pipe (71) is connected to the mixing tank (2). The bottom is connected, and the other end of the drain pipe (73) extends through the top wall of the temporary storage tank (3) into the interior of the temporary storage tank (3). The drain pipe (74) is fixedly connected to the side wall of the drain pipe (73). A sealing component (8) is installed on the top wall of the temporary storage tank (3) near the drain pipe (73). A dosing pipe (9) is fixedly connected to the bottom of the side wall of the temporary storage tank (3), and the dosing pipe (9) is shaped like a gooseneck. An air pump (11) is installed on the top of the temporary storage tank (3). The air outlet of the air pump (11) and the top wall of the temporary storage tank (3) are connected together by an air supply pipe.

2. The wastewater treatment dosing device according to claim 1, characterized in that: The feeding assembly (5) includes a hopper (51), and a screw conveyor (52) is installed at the bottom of the hopper (51). The discharge port of the screw conveyor (52) is located above the feeding port (21).

3. The wastewater treatment dosing device according to claim 1, characterized in that: The stirring assembly (4) includes a motor (41) fixed to the upper surface of the mixing tank (2), a vertical shaft (42) fixed to the output end of the motor (41), a stirring blade (43) fixedly connected to the bottom end of the vertical shaft (42), and a plurality of dispersing plates (44) fixed to the top end of the vertical shaft (42), and the dispersing plates (44) are located below the feeding port (21).

4. The wastewater treatment dosing device according to claim 1, characterized in that: The middle portions of the liquid extraction pipe (71) and the waste discharge pipe (74) are respectively fixed with a first valve (72) and a second valve (75).

5. A wastewater treatment dosing device according to claim 1, characterized in that: The sealing assembly (8) includes an electric telescopic rod (81) fixed to the top of the temporary storage tank (3). The telescopic end of the electric telescopic rod (81) passes through the top wall of the temporary storage tank (3) and is fixedly connected to a blocking plate (82). The blocking plate (82) is located directly below the drain pipe (73).

6. A wastewater treatment dosing device according to claim 1, characterized in that: The surface of the dosing tube (9) away from the temporary storage tank (3) is connected to a sealing cap (10) by a threaded rotation.

7. A wastewater treatment dosing device according to claim 1, characterized in that: A one-way valve is connected to the middle of the gas pipeline.

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