A biological carrier dynamic dosing device

Abstract

The utility model discloses a kind of biological carrier dynamic dosing equipment, including inlet pipe, the distribution shell of being arranged at the bottom of the inlet pipe, the conical sieve tray of being movably arranged in the inside of the distribution shell, electric push rod is arranged at the bottom of the distribution shell and output end is contacted with the conical sieve tray, and at least one distribution pipeline is arranged on distribution shell and is communicated with the inside of distribution shell;The device biological carrier dynamic dosing equipment is synergic control by sensor, electric control valve, electric push rod and double-channel distribution pipeline, realizes the whole process self-adapting management of carrier dosing, automatically adjusts carrier dosing amount according to water quality demand, when high load in water pollutant, small particle carrier in fine and scattered material pipe is preferentially dosed to quickly adsorb and degrade, when low load, through the mesh cage of thick feeding pipe, large particle carrier is released, evenly dispersed dosing is carried out, and the treatment efficiency of pollutant is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of biological carrier addition equipment, specifically to a dynamic biological carrier addition equipment. Background Technology

[0002] Dynamic dosing equipment for biological carriers is a key technology that has emerged in the fields of environmental engineering and biomanufacturing in recent years. Its emergence is closely related to the long-standing pain points of biological treatment technology. Traditional biological treatment processes, such as activated sludge processes and biofilm reactors, rely on static microbial communities to degrade pollutants or synthesize products. However, the activity of microorganisms is easily affected by factors such as temperature, toxic substances, and dissolved oxygen fluctuations, resulting in low treatment efficiency, high energy consumption, and poor stability.

[0003] For example, wastewater treatment plants often experience a sharp drop in denitrification efficiency due to low winter temperatures or industrial wastewater surges. Traditional solutions, such as extending hydraulic retention time or manually adding microbial agents, are often accompanied by a surge in energy consumption or lag in response. Bioaugmentation technology is gradually evolving from immobilized packing materials to dynamic control. Early researchers improved the survival rate of microbial communities by embedding slow-release carriers containing microorganisms, but these carriers still lack environmental responsiveness and cannot achieve on-demand addition. Traditional biological carriers are mostly added in a static manner, such as one-time filling, which is difficult to adapt to fluctuations in water quality or changes in microbial activity. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a dynamic biological carrier dosing device.

[0005] The technical solution of this utility model is a dynamic biological carrier dosing device: it includes an inlet pipe, a distribution shell disposed at the bottom of the inlet pipe, a conical screen plate movably disposed inside the distribution shell, an electric push rod disposed at the bottom of the distribution shell with its output end in contact with the conical screen plate, and at least one dosing pipe disposed on the distribution shell and communicating with the interior of the distribution shell, wherein an electrically controlled valve is provided between the dosing pipe and the distribution shell; the conical screen plate is slidably sealed to the inner side wall of the distribution shell; multiple water quality sensors are connected to the bottom of the distribution shell; the dosing pipe includes a fine feed pipe disposed at the bottom of the distribution shell, a coarse feed pipe disposed on the side wall of the distribution shell and above the conical screen plate, and a mesh cage disposed on the coarse feed pipe; the coarse feed pipe communicates with the mesh cage, and elastic metal sheets are correspondingly disposed one-to-one inside the mesh of the mesh cage.

[0006] Description: This device reduces the risk of carrier leakage through an integrated sealed structure of the distribution shell. Utilizing a modular design of the mesh cage and elastic metal sheet, it achieves automatic sorting and spatial gradient distribution of carrier particles through physical and mechanical properties. When carrier particles flow through the mesh cage, their mass difference and the vibration response of the elastic metal sheet form a dynamic coupling: larger, coarser particles, due to their stronger inertia, gain higher kinetic energy upon collision with the elastic metal sheet and are ejected to a farther area; while smaller, finer particles, due to their weaker inertia, have a limited rebound amplitude and disperse only at the near end. This mass difference-based ejection sorting mechanism requires no external power intervention and automatically forms a carrier distribution gradient from near to far and from fine to coarse during the addition process, thus precisely matching the differentiated needs of different areas in the water body for biofilm carriers. For example, fine particles at the near end rapidly adsorb pollutants and promote the growth of short-generation microorganisms, while coarser particles at the far end provide a slow-release attachment substrate for longer-cycle biofilms, while avoiding premature settling of large particles and local accumulation, significantly improving carrier utilization efficiency.

[0007] Furthermore, a first spring is provided between the conical screen disc and the inner wall of the material distribution housing, and the sliding sealing connection uses an elastic membrane to connect the conical screen disc and the inner wall of the material distribution housing.

[0008] Explanation: When the electric push rod pushes the bottom of the conical screen, the elastic membrane protects the seal between the conical screen and the material distribution shell, and the first spring strengthens the vibration amplitude of the conical screen, thereby improving the screening efficiency of the powder.

[0009] Furthermore, the mesh interior of the cage is movably connected to the elastic metal sheet via a torsion spring.

[0010] Explanation: The force of the torsion spring enhances the vibration of the elastic metal sheet, strengthens the elastic force on the carrier particles, and improves the uniformity of dispersion.

[0011] Furthermore, the mesh cage is a telescopic structure, and the mesh cage is divided into multiple parts along the longitudinal direction. Each longitudinally adjacent part is provided with a sliding groove and a protrusion for limiting the position, and each longitudinally adjacent part is provided with a second spring.

[0012] Description: The retractable mesh cage structure is achieved through the sliding engagement of the groove and the protrusion. When a large number of particles fall, pressure is applied to the elastic metal, and the second spring is stretched to achieve the expansion and contraction of the mesh cage aperture.

[0013] Furthermore, a guide groove is provided on the upper surface of the elastic metal sheet along the length direction of the elastic metal sheet.

[0014] Explanation: The guide groove guides the direction of the carrier particles, causing most of them to pop out from the outside of the cage.

[0015] Furthermore, the water quality sensor is one or a combination of several of the following: dissolved oxygen sensor, pH sensor, ammonia nitrogen sensor, redox potential sensor, and biofilm thickness sensor.

[0016] Description: By integrating and monitoring multiple parameters such as dissolved oxygen, pH, ammonia nitrogen, redox potential, and biofilm thickness, the system can analyze the aquatic environment and biofilm metabolic state in real time, and automatically add biological carriers by opening and closing the electrically controlled valves according to the water quality.

[0017] The beneficial effects of this utility model are as follows: This device's dynamic biological carrier dosing equipment achieves full-process adaptive management of carrier dosing through the coordinated control of sensors, electric control valves, electric push rods, and dual-channel dosing pipes. Water quality sensors monitor water parameters in real time, thereby controlling the opening and closing of the electric control valves in the dosing pipes. The carrier dosing amount is automatically adjusted according to water quality requirements. When the water is under high pollutant load, small-particle carriers in the fine feed pipe are preferentially added for rapid adsorption and degradation. Under low load, large-particle carriers are slowly released through the mesh cage of the coarse feed pipe for uniform dispersion. The electric push rod drives the conical screen to periodically rise and fall. The sliding sealing structure between the screen and the distribution shell can clear blockages. The tilt angle of the screen allows for automatic carrier classification by particle size: fine particles fall directly into the bottom fine feed pipe for rapid dosing, while coarse particles enter the coarse feed pipe on the side wall. After being dispersed by the high-frequency micro-vibration of the elastic metal sheet inside the mesh cage, they are evenly and slowly released, avoiding premature settling of large particles and preventing localized accumulation, thus effectively improving pollutant treatment efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0019] Figure 2 This is a partial longitudinal sectional view of the material distribution shell of Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the wire mesh cage in Embodiment 1 of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the wire mesh cage in Embodiment 2 of this utility model;

[0022] Among them, 1-feed pipe, 2-distribution shell, 21-water quality sensor, 3-conical screen plate, 31-first spring, 32-elastic membrane, 4-electric push rod, 5-feeding pipe, 51-fine feed pipe, 52-coarse feed pipe, 53-net cage, 531-elastic metal sheet, 532-slide groove, 533-protrusion. Detailed Implementation

[0023] The present invention will now be described in more detail with reference to specific embodiments, so as to better demonstrate the advantages of the present invention.

[0024] Example 1: As Figure 1 , 2 The illustrated biological carrier dynamic dosing device includes an inlet pipe 1, a distribution shell 2 disposed at the bottom of the inlet pipe 1, a conical sieve 3 movably disposed inside the distribution shell 2, an electric push rod 4 disposed at the bottom of the distribution shell 2 with its output end in contact with the conical sieve 3, and at least one dosing pipe 5 disposed on the distribution shell 2 and communicating with the interior of the distribution shell 2. An electrically controlled valve is provided between the dosing pipe 5 and the distribution shell 2. The conical sieve 3 is slidably sealed to the inner wall of the distribution shell 2. Three water quality sensors 21 are connected to the bottom of the distribution shell 2. The three water quality sensors 21 are a dissolved oxygen sensor, a pH sensor, and an ammonia nitrogen sensor, respectively.

[0025] like Figures 1-3 As shown, the feeding pipe 5 includes eight fine feed pipes 51 disposed at the bottom of the distribution shell 2, two coarse feed pipes 52 disposed at intervals on the side wall of the distribution shell 2 and located above the conical screen plate 3, and two mesh cages 53 correspondingly disposed on the coarse feed pipes 52; the coarse feed pipes 52 are connected to the mesh cages 53, and elastic metal sheets 531 are disposed one-to-one inside the mesh of the mesh cages 53; an electric control valve is provided between the feeding pipe 5 and the distribution shell 2; a first spring 31 is provided between the conical screen plate 3 and the inner side wall of the distribution shell 2; and an elastic membrane 32 is used to connect the conical screen plate 3 and the inner side wall of the distribution shell 2 in the sliding sealing connection.

[0026] It should be noted that this embodiment also includes a power supply and a controller. The power supply and controller are located above the material distribution shell 2, which is far away from the water source. The power supply, controller, electric push rod 4, dissolved oxygen sensor, pH sensor, ammonia nitrogen sensor, oxidation-reduction potential sensor, and biofilm thickness sensor are all commercially available products and will not be described in detail here.

[0027] In this embodiment, the electric push rod 4 and the water quality sensor 21 are electrically connected to the power supply and the controller, respectively.

[0028] The working principle of this embodiment is as follows: The water quality sensor 21 is placed in the pool where biological carriers are to be added. The fine feed pipe 51 and the coarse feed pipe 52 are placed above the water body at different positions and fixed with support rods and screws. The feed pipe 1 is connected to the biological carrier box, so that the biological carriers are introduced into the distribution shell 2. The electric push rod 4 is turned on, which pushes the conical screen 3 to vibrate, causing the small-diameter biological carriers to fall. When biological carriers are needed for water quality monitoring, the electric control valve of the coarse feed pipe 52 is opened, and the large-diameter biological carriers fall into the coarse feed pipe 52 from the openings on both sides. The elastic metal sheet 531 inside the mesh cage 53 deforms and disperses the coarse-diameter biological carrier particles of different masses. When the pollutants in the water quality monitoring are overloaded, the electric control valve of the fine feed pipe 51 is opened to accelerate the adsorption and degradation. When the water quality monitoring reaches the standard, the electric control valve is closed and the addition of biological carriers is stopped.

[0029] Example 2: This example differs from Example 1 in that, as Figure 4 As shown, the wire mesh cage 53 is a telescopic structure. The wire mesh cage 53 is divided into eight parts along the longitudinal direction. Each longitudinally adjacent two parts are provided with a sliding groove 532 and a protrusion 533 for limiting the telescopic distance. Each longitudinally adjacent two parts are also provided with a second spring.

[0030] Example 3: The difference between this example and Example 1 is that the mesh inside the wire mesh 53 is connected to the elastic metal sheet 531 by a torsion spring.

[0031] The working principle of this embodiment is as follows: by utilizing the elastic deformation energy of the torsion spring, the torsion spring generates a restoring torque under external force, causing the elastic metal sheet to vibrate at high frequency. Under this repeated elastic force, kinetic energy is obtained, causing the carrier particles to disperse and bounce away. Through collision and rebound, the spatial redistribution between particles is achieved, thereby improving the dispersion uniformity.

Claims

1. A device for dynamic addition of biological carriers, characterized in that, The device includes an inlet pipe (1), a distribution housing (2) located at the bottom of the inlet pipe (1), a conical screen (3) movably mounted inside the distribution housing (2), an electric push rod (4) located at the bottom of the distribution housing (2) with its output end in contact with the conical screen (3), and at least one feeding pipe (5) mounted on the distribution housing (2) and communicating with the inside of the distribution housing (2). An electrically controlled valve is provided between the feeding pipe (5) and the distribution housing (2). The conical screen (3) is located on the inner side of the distribution housing (2). The walls are connected by a sliding seal; the bottom of the material distribution shell (2) is connected to multiple water quality sensors (21); the dosing pipe (5) includes a fine material pipe (51) set at the bottom of the material distribution shell (2), a coarse material feeding pipe (52) set on the side wall of the material distribution shell (2) and located above the conical screen plate (3), and a mesh cage (53) set on the coarse material feeding pipe (52); the coarse material feeding pipe (52) is connected to the mesh cage (53), and the mesh of the mesh cage (53) is provided with elastic metal sheets (531) corresponding to each other.

2. The biological carrier dynamic dosing device according to claim 1, characterized in that, A first spring (31) is provided between the conical screen plate (3) and the inner wall of the material distribution shell (2), and the sliding sealing connection is made by using an elastic membrane (32) to connect the conical screen plate (3) and the inner wall of the material distribution shell (2).

3. The biological carrier dynamic dosing device according to claim 1, characterized in that, The mesh interior of the wire mesh cage (53) is movably connected to the elastic metal sheet (531) by a torsion spring.

4. The biological carrier dynamic dosing device according to claim 1, characterized in that, The wire mesh cage (53) is a telescopic structure. The wire mesh cage (53) is divided into multiple parts along the longitudinal direction. Each longitudinal adjacent part is provided with a sliding groove (532) and a protrusion (533) for limiting. Each longitudinal adjacent part is also provided with a second spring.

5. The biological carrier dynamic dosing device according to claim 1, characterized in that, The upper surface of the elastic metal sheet (531) is provided with a guide groove along the length direction of the elastic metal sheet (531).

6. The biological carrier dynamic dosing device according to claim 1, characterized in that, The water quality sensor (21) is one or a combination of several of the following: dissolved oxygen sensor, pH sensor, ammonia nitrogen sensor, redox potential sensor, and biofilm thickness sensor.

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