83 results about "Multiple dosing" patented technology

The invention discloses an automatic ammonia preparation device for adding ammonia water into condensed water at multiple points, and belongs to the technical field of industrial water treatment. Comprising an ammonia preparation unit, a multi-path adding unit and a control unit, the ammonia preparation unit comprises an ammonia water storage tank, a desalted water tank, a mixing and diluting tank, a first metering pump, a second metering pump and an online conductivity meter; the ammonia preparation unit is used for mixing ammonia water and desalted water in proportion; the multi-path adding unit comprises a main distribution pipeline and at least three parallel adding branches, each adding branch is communicated with a regulating valve, a flow meter and a static mixer, and the multi-path adding unit is used for adding mixed ammonia water to a plurality of adding points of the condensed water system; the control unit comprises a PLC (Programmable Logic Controller) and a pH sensor, the pH sensor is used for monitoring the pH value of condensed water at each feeding point, the PLC is in signal connection with the pH sensor, the online conductivity meter, the regulating valve and the flow meter, and the control unit is used for realizing dynamic flow distribution.

The utility model discloses a dosage box, which comprises a shell and a dosimeter card, wherein the shell is provided with a hollow cavity, and one end of the hollow cavity penetrates through the shell; the dosimeter card can be placed in the hollow cavity, and a drawer type drawing structure is formed between the dosimeter card and the shell; a plurality of sinking grooves are formed in the dosimeter card and are used for placing dosimeters; one end of the dosimeter card is provided with a pick-and-place card slot, the other end of the dosimeter card is provided with a first positioning card slot, and the shell is provided with a second positioning card slot corresponding to the first positioning card slot. According to the utility model, the volume of the dose box is reduced, the dose box is convenient to carry, and more dose boxes can be placed in the limited space of the thermoluminescence reader; a clamping structure is designed to prevent the card from falling out of the dosage box in daily wearing of the dosage box; the thermoluminescent dosimeter is easier to adapt to automatic equipment, and full-automatic reading of the thermoluminescent dosimeter is realized.

A wearable drug delivery device that can deliver a liquid drug stored in a container to a patient is provided. The container can be a prefilled cartridge that can be loaded into the drug delivery device by the patient or that can be preloaded within the drug delivery device when provided to the patient. A sealed end of the container is pierced to couple the stored liquid drug to a needle conduit that is coupled to a needle insertion component that provides access to the patient. A drive system of the drug delivery device can expel the liquid drug from the cartridge to the patient through the needle conduit. The drive system can be controlled to provide the liquid drug to the patient in a single dose or over multiple doses.

The invention provides a powder inhaler. The powder inhaler comprises a shell assembly; the depolymerization mechanism is provided with a depolymerization cavity; the powder delivery mechanism is arranged in the shell assembly and provided with a plurality of capsule cavities, and the capsule cavities are used for storing powder capsules; the powder delivery mechanism can move relative to the depolymerization cavity, so that the plurality of capsule cavities are sequentially communicated with the depolymerization cavity; one of the shell assembly and the powder delivery mechanism is provided with a first limiting piece, and the other one of the shell assembly and the powder delivery mechanism is provided with a plurality of second limiting pieces; and when the capsule cavity is aligned with the depolymerization cavity, the first limiting piece is clamped with one second limiting piece. The powder inhaler can provide multiple doses of powder capsules; and moreover, the capsule cavity and the depolymerization cavity can be prevented from being misplaced, so that the proportional distribution of air inflow and the suction resistance and depolymerization effect are not influenced.

The present disclosure relates to a fluid dispensing device (10), the fluid dispensing device (1) comprising: a housing (10) to accommodate a container (110) filled with a fluid, wherein the housing (10) comprises a sidewall 118) extending along a longitudinal direction (z), —an outlet orifice (3), —a discharge mechanism (130) operable for spray discharging at least one or multiple doses of the fluid via the outlet orifice (3), —a protective cap (12) pivotally supported on or by the housing (10) between an open position and a closed position, wherein when in the closed position the outlet orifice (3) is effectively covered by the protective cap (12), —a mechanical energy storage (50) coupled to the discharge mechanism (130), reversibly transferable between a preloaded state and an unloaded state and configured to store mechanical energy in the preloaded state effective to produce the spray discharging of the fluid, —a biasing mechanism (150) comprising a biasing member (160) operationally coupled to the protective cap (12) and selectively engageable with the mechanical energy storage (50) to transfer the mechanical energy storage (50) into the preloaded state when the protective cap (12) moves into the closed position, —a pinion segment (151) connected to or integrated into the protective cap (12), —a rack segment (161) engaged with the pinion segment (151) and connected to or integrated into the biasing member (160).

Pharmaceutical compositions comprising a therapeutically active agent and an absorption enhancer such as NAC, NAD, 5-CNAC, 4-MOAC, 4-CNAB or a salt thereof, for use in the treatment of a condition treatable by said therapeutically active agent, are provided. The compositions are for concomitant oral administration of two or more of the unit dosage form, which form together a therapeutically effective amount of the therapeutically active agent and an effective amount of the absorption enhancer. Multi-dose compositions comprising the two or more of the unit dosage form are also provided.

A dispensing apparatus is provided. The apparatus includes multiple dosing stations each having an output opening, multiple fall ducts mounted to a mounting beam of a fall duct conveyor and multiple collectors connected to a collector conveyor. Each fall duct includes a first part and an opposing second part detachably connected to the first part, the second part having multiple inlet openings that align with the output openings of the dosing stations, wherein the first and second parts define a space for solids falling from the dosing stations. The collector conveyor moves the collectors together with the fall ducts moved by the fall duct conveyor, wherein the collectors collect the solids falling from the dosing stations.

This invention discloses a dosing device with multiple water treatment agent quantitative dosing functions, including a agent tank. A drive device is installed on the top of the agent tank. The drive device is connected to a rotary drive device. One rotary drive device is connected to two other rotary drive devices via a transmission rod. The transmission rod is rotatably connected to a support frame. The rotary drive device is rotatably connected to the upper end of a top block and is connected to an inlet / outlet device. The drive device includes a motor, which is connected to the agent tank and to a pinion gear. The pinion gear meshes with a large gear, and one side of the large gear is connected to a slide rod. This invention can simultaneously control the dosage of several agents, each of which can be individually and precisely adjusted. It is simple to operate and can quickly adjust the dosage of each agent in response to changes in water quality. Furthermore, it drives multiple dosing units with a single drive, making it more energy-efficient and effective.

The present invention provides a solid water treatment chemical dosing device and its application method. The dosing device is provided with chemical dosing ports corresponding to each chemical storage tank on the chassis, and by rotating the chassis, the chemical dosing ports are connected to the water inlet of the water tank arranged on the water treatment system pipeline, solving the problem of drug dosing in the sealed section of the water treatment system; the chemical storage tank is connected to the water inlet of the water tank through the chemical dosing port, facilitating the inflow of water into the chemical storage tank to dissolve the chemical, solving the problem of incomplete dissolution of the chemical; through a plurality of chemical storage tanks circumferentially arranged on the chassis, at the same time, by rotating the chassis and using the sliding end of the elastic sliding limiting member to enter the limiting groove to determine the connection between the chemical dosing port corresponding to the required chemical storage tank and the water inlet on the water tank, such operation can meet the requirements of different chemical dosing amounts in multiple dosing cycles, greatly improving the dosing efficiency. The application method has simple steps and convenient operation.

The utility model discloses a semiconductor wastewater defluorination accurate dosing device which comprises a wastewater tank, a dosing device is arranged above the wastewater tank, the dosing device comprises a liquid storage tank and a dosing tank rotationally connected to the bottom of the liquid storage tank, a plurality of liquid outlet holes arranged around the center of the liquid storage tank are formed in the bottom surface of the liquid storage tank, and a piston pushing mechanism is arranged on one side of each liquid outlet hole; the dosing box is provided with a plurality of quantitative liquid storage tanks in one-to-one correspondence with the liquid outlet holes, the capacities of the quantitative liquid storage tanks are different, the bottom of each quantitative liquid storage tank is provided with a liquid outlet control valve, the bottom of the dosing box is provided with dosing holes in one-to-one correspondence with the quantitative liquid storage tanks, and the quantitative liquid storage tanks are used for receiving medicaments from the liquid outlet holes respectively. And after the quantitative liquid storage tank rotates to correspond to the piston pushing mechanisms, the piston pushing mechanisms are used for pushing out the medicament in the quantitative liquid storage tank. During dosing, one or more quantitative liquid storage tanks can be selected to be added independently or in a combined mode, the dosing amount is accurately controlled according to needs, and the defluorination effect is improved.

The utility model relates to automatic food quantitative packaging equipment, which relates to the technical field of food packaging and comprises a stock bin, a packaging component, a butterfly valve component and a receiving mechanism. The packaging assembly comprises a rotating disc, a plurality of quantitative barrels and a baffle, the rotating disc is rotationally installed in the stock bin, the quantitative barrels are arranged at the bottom of the rotating disc and distributed on the periphery of the rotating disc in an annular array mode, through holes are formed in the rotating disc and communicate with inner cavities of the quantitative barrels, and the baffle is arranged in the stock bin and slidably attached to the top wall of the rotating disc. A discharge hole is formed in the bottom of the stock bin; the butterfly valve assembly is used for opening and closing the bottom opening of the quantitative cylinder; the receiving mechanism is used for receiving food falling out of the stock bin. By means of the packaging assembly and the butterfly valve assembly, the technical problems that most of materials in the barrel cannot be quantitatively processed at a time through existing automatic food quantitative packaging equipment, and working efficiency is low are solved.

The utility model discloses a dosing regulation and control system, which belongs to the technical field of biochemical production equipment, and comprises a production pipeline for producing biological or chemical products; the plurality of tank bodies are respectively used for storing medicines; the regulation and control pipeline comprises a chemical adding main branch, a plurality of chemical adding branch pipelines, a backflow main branch, a plurality of backflow branch pipelines and a material injection pipeline; the dosing main branch and the backflow main branch are respectively connected to the production pipeline at intervals, the plurality of dosing branches are respectively communicated with one end of the dosing main branch, the other end of each dosing branch is connected with an outlet of the tank body, each dosing branch is provided with a dosing branch regulation and control valve, the plurality of backflow branches are respectively communicated with one end of the backflow main branch, and each backflow branch is provided with a backflow branch regulation and control valve. The other end of the backflow branch is connected with the inlet of the tank body, the backflow branch is provided with a backflow regulation and control valve, and the material injection pipeline is communicated with each tank body. According to the method, process optimization can be carried out on medicine addition and adjustment of the production line, medicine switching is rapidly carried out, the normal production process can be maintained, and the compatibility of equipment regulation and control is improved.

The invention relates to the field of electroplating technology auxiliary systems, in particular to an automatic medicine dispensing and adding system for multiple electroplating lines, which comprises a conveying frame arranged on one side of an electroplating bath; the storage bin is fixed to the conveying frame and used for storing chemicals needed for preparing the electroplating liquid, and an automatic detection device is arranged in the storage bin and used for detecting the remaining amount of the electroplating liquid in the storage bin; the multiple dosing boxes are arranged on the conveying frame in a sliding mode and connected with the storage bin, and electroplating liquid is accurately prepared corresponding to different electroplating lines in the dosing boxes; a plurality of rows of dosing boxes are arranged below the dosing box in a sliding manner, the distribution direction of the plurality of dosing boxes in each row is parallel to the distribution direction of the plurality of electroplating baths in one electroplating line, and the dosing boxes are connected with the dosing box; the second sliding mechanism is arranged on the conveying frame corresponding to the dispensing box; and the first sliding mechanism is arranged below the conveying frame corresponding to the dosing box. The device has the effects that the configuration and conveying efficiency of the electroplating liquid is improved, and the device is matched with multiple electroplating lines to achieve efficient replacement of the electroplating liquid.

A composition comprising a solubiliser, at least one preservative, at least one liquid emollient and at least one antimicrobial agent, wherein the composition comprises thymol and carvacrol. The antimicrobial agent may comprise essential oils, active ingredients derived from essential oils or synthetic equivalents thereof and, optionally, additional antimicrobial compounds. The composition may comprise thymol, carvacrol, levulinic acid and lauric acid. The composition may be used for intra-anal douching and may be used to reduce the risk of the transmission of sexually transmitted diseases (STDs) and / or sexually transmitted infections (STIs). The composition may be essentially free of water and may be provided as a single unit dosage formulation. Alternatively, the composition may further comprise water and may be provided as a single unit dosage or multi-dosage formulation. Methods of making the composition that is essentially free of water and the composition further comprising water are also disclosed.

The invention discloses a dosing device with a function of quantitatively feeding multiple water treatment chemicals, which comprises a chemical box, a driving device is installed at the top of the chemical box, the driving device is in transmission connection with a rotation driving device, one rotation driving device is in transmission connection with the other two rotation driving devices through a transmission rod, and the rotation driving device is in transmission connection with the other two rotation driving devices through a transmission rod. The transmission rod 7 is rotationally connected with the supporting frame, the rotation driving device is rotationally connected with the upper end of the top block and is in transmission connection with the feeding and discharging device, the driving device comprises a motor, the motor is connected with the medicament box and is in transmission connection with a small gear, the small gear is meshed with a large gear, one side of the large gear is connected with a sliding rod, and the sliding rod is connected with the pushing rod. The dosing amount of several medicaments can be controlled at the same time, each medicament can be independently and accurately adjusted, the operation is simple, the dosing amount of each medicament can be rapidly adjusted when the water quality changes, and the dosing units are driven through single drive, so that the dosing device is more energy-saving and efficient.

The application provides a carbon source precise dosing system and method, which comprises a carbon source medicament tank, a control module and sequentially communicated pretreatment unit, anaerobic unit, anoxic unit, aerobic unit, secondary sedimentation tank and clear water tank, the secondary sedimentation tank is further communicated with a cyclone reactor, the aerobic unit is communicated with the anoxic unit to form internal reflux, the secondary sedimentation tank is communicated with the anaerobic unit to form external reflux, the cyclone reactor is communicated with the anoxic unit to form cyclone liquid reflux, the carbon source medicament tank is communicated with multiple dosing points, the multiple dosing points are located in the anoxic unit, and the control module is used for monitoring data parameters of the pretreatment unit, the anaerobic unit, the anoxic unit, the aerobic unit, the cyclone reactor, the secondary sedimentation tank, the clear water tank and the carbon source medicament tank, so as to adjust the dosing points and dosing amount of the carbon source medicament tank and the flow of reflux feedback.

The utility model discloses a repeated medicine supply device for preventing termites, which relates to the technical field of termite prevention and comprises a first infusion tube and an extension tube, one side of the extension tube is fixedly connected with a first limit ring, one side of the first limit ring far away from the extension tube is fixedly connected with a connecting tube, and the inner wall of the extension tube is slidably connected with a liquid spraying tube. A sealing plate is fixedly connected to one side of the liquid spraying pipe, a needle head is fixedly connected to the other side of the liquid spraying pipe, a through opening is formed in the sealing plate, an L-shaped baffle is rotationally connected to the inner side face of the sealing plate through a torsional spring, the L-shaped baffle is attached to an opening of the through opening in the inner side face of the sealing plate, and the size of the L-shaped baffle is slightly larger than that of the through opening so that the L-shaped baffle can only be opened in one direction. The side, away from the sealing plate, of the liquid spraying pipe is attached to the inner side face of the first limiting ring, and the problem that according to a traditional medicine supply mode, medicine is mostly manually sprayed on soil, the medicine in the deep layer of the soil is difficult to permeate and uneven in distribution, and the termites can penetrate through an area with the weak medicine effect is solved.

This invention discloses a pharmaceutical wastewater dosing treatment device, comprising a treatment tank for storing wastewater and multiple dosing mechanisms installed on the treatment tank. Each dosing mechanism includes a first U-shaped frame and a second U-shaped frame fixedly connected to the treatment tank. The first U-shaped frame is equipped with a supply component for simultaneously supplying gas and liquid pharmaceuticals. The second U-shaped frame is equipped with three temporary storage components that rotate unidirectionally via a unidirectional rotating component. When the temporary storage component rotates to the leftmost position, it connects with the gas supply component, allowing the supplied gas and liquid pharmaceuticals to be stored. During use, this device can increase the dissolved oxygen content by storing liquid oxidizing pharmaceuticals with air under high pressure before uniformly dispensing them into the wastewater treatment tank. This ensures sufficient oxygen supply while minimizing the generation of large air bubbles, thus preventing excessive air bubbles from affecting the actual wastewater treatment effect.

The utility model discloses jam filling equipment for producing blended jam, and relates to the technical field of food processing, the jam filling equipment comprises a workbench and a filling device, the side wall of the filling device is fixedly connected with the side wall of the workbench; through cooperation of the filling device and the conveying device, quantitative filling is achieved through sliding of a push block in a quantitative pipe, the amount of jam filled every time can be accurately controlled, the problem that the filling amount is too large or too small is effectively solved, it is guaranteed that the filling amount of each tank of jam is consistent, and the filling efficiency is improved. The multiple quantitative pipes can conduct filling operation on multiple cans at the same time, the production period is shortened, the bottom ends of the quantitative pipes are provided with the plastic outlets, the plastic material has certain flexibility and corrosion resistance, jam residue and blockage can be effectively prevented, jam flow can be rapidly cut off, jam is prevented from dripping outside the cans, jam flow can be rapidly cut off, and the production efficiency is improved. Jam is prevented from dripping outside the jar, and the purpose of ensuring the appearance cleanness of the jar is achieved.

The utility model discloses a kind of concentrated dosing devices of washing light tank, including storage unit, conveying unit and distribution unit;The storage unit includes at least one storage barrel, and storage barrel top is equipped with medicine inlet, bottom is connected conveying unit;The conveying unit includes dosing metering pump, dosing metering pump input end is communicated with storage barrel, and output end is connected distribution unit by pipeline;The distribution unit includes dosing main pipe and multiple dosing branch pipes, each dosing branch pipe is connected with the dosing port of corresponding washing light tank, and control valve is equipped on each dosing branch pipe.The utility model stores medicine water using large-capacity storage barrel, dosing metering pump can extract medicine water from storage barrel, then shunt to each washing light tank through multiple dosing branch pipes, automatically complete dosing, save a lot of manpower time.Meanwhile, washing light equipment can normally run during dosing process, completely eliminate the shutdown loss caused by dosing.

The present application discloses a sprayer for fluid and a method for delivering and atomizing the fluid. The sprayer includes: a container for accommodating multiple doses of the fluid; a delivery mechanism for moving from an initial position to a tensioned position when the sprayer is tensioned to extract a medication dose of the fluid from the container, and for moving from the tensioned position to the initial position when the sprayer is activated to atomize the medication dose of the fluid. The delivery mechanism, during movement from the initial position to the tensioned position, atomizes a preset amount of the fluid through a temporary rebound motion, wherein the medication dose is a single medication dose and the preset amount is smaller than the medication dose.

This invention provides a blister pack dosage form container, comprising an advanceable blister pack holder, comprising a series of access portals sized to accommodate pass-through of at least one dosage form contained within a multi-dosage form containing blister pack located within said holder proximally therethrough upon engagement of an appropriate depilling structure, wherein said advanceable blister pack holder optionally accommodates upright positioning of said dosage forms and said depilling structure displaces said dosage form laterally. The invention also provides a multi-dosage form container, comprising an advanceable multi-sectioned dosage form holder, comprising a series of access portals sized to accommodate pass-through of at least one dosage form contained within said multi-sectioned dosage form holder proximally therethrough upon alignment with an appropriate egress structure, optionally wherein said multi-sectioned dosage form holder accommodates upright positioning of said dosage forms such that said egress structure provides for lateral displacement of said at least one dosage form; and a lockable outer container, comprising a tamper proof casing within which the multi-sectioned dosage form holder is contained. Kits containing the blister pack dosage form container and multi-dosage form containers are also described.

The present disclosure provides a method and apparatus for the automatic injection of multiple doses of a fluid to a target site of a subject. The delivery device generally includes a housing and at least one injection assembly housed in the housing. A controller is configured to control the injection assembly to inject a first dose of a fluid after a first preselected time period has elapsed and to inject a second dose of a fluid after a second preselected time period has elapsed.

A pharmaceutical composition comprising a GLP-1 and GIP dual-receptor agonist and use thereof. Specifically, the pharmaceutical composition comprises the GLP-1 and GIP dual-receptor agonist, a stabilizer, a buffer salt, and a bacteriostatic agent. In the provided pharmaceutical composition, auxiliary materials such as the stabilizer, the buffer salt, and the bacteriostatic agent are selected and added, such that the polypeptide GLP-1 and GIP dual-receptor agonist serving as a pharmaceutical active ingredient has good solubility in a liquid formulation. Meanwhile, the problems of drug failure and the like caused by the polymerization of the agonist are avoided, and the pharmaceutical composition has good stability and antibacterial efficacy and meets the requirements of a multi-dose injection. The pharmaceutical composition exhibits an important application prospect in the prevention and treatment of metabolic disorder-related diseases such as diabetes or diabetic complications and obesity or obesity complications.

The present application relates to sludge flocculation and medicament conditioning concentration method, it includes: S1, stirring concentration step, mud is agitated by first stirring unit, wherein the mud water generated by agitation is filtered to filter water cavity, and the stirred sludge is pushed down; S2, step-by-step medicament concentration step, by adding medicament to multiple dosing pipes from top to bottom in turn, and completing the stirring of each level formed below the corresponding dosing pipe, and the sludge after completing multistage stirring is discharged from the mud outlet structure, wherein the flow direction of the medicament of the two adjacent dosing pipes is kept intersecting, and the stirring mode of the sludge formed by the two adjacent levels is different. The present application not only completes the uniform mixing of the medicament and the sludge in the relative dispersion in the diversified stirring process to destroy the cell wall of the sludge, but also can realize the multi-angle and omnidirectional mixing of the medicament and the sludge, and the mud discharge efficiency is high.

This application discloses a sequencing batch reactor (SBR) for enhanced denitrification using a staged influent process and a wastewater treatment method. The enhanced denitrification SBR is a multi-compartment structure operating in parallel. A network-like, multi-point upward-flow uniform water distribution system includes an influent channel along the top of the tank, an influent shaft connected to it, a bottom distribution channel connected to the influent shaft, and multiple distribution pipes connected to the bottom distribution channel. The distribution pipes have a gap with the tank bottom, and the bottom outlet openings face the tank bottom. An electric gate is installed at the connection between the influent shaft and the influent channel. The network-like, multi-point uniform dosing system includes a main pipe arranged along the top of the tank and multiple dosing branch pipes connected to it. Electric valves are installed at the branches of the main pipe. The dosing branch pipes have downward-facing dosing ports at intervals. This enhanced denitrification SBR uses a staged influent process to treat wastewater, maximizing the utilization of carbon sources. The water in the tank is uniformly mixed, avoiding reagent waste, and can rely on initial drainage to reduce total water loss.

The invention provides a flotation chemical adding method, device and equipment of a dressing plant, a medium and a product. The flotation chemical adding method comprises the steps that currently input mineral product information is obtained; according to the mineral information, a dosing control data set corresponding to the mineral information is determined from a dosing database, the dosing database comprises multiple dosing control data sets, and the multiple dosing control data sets are determined by a pre-trained machine learning model; and according to the dosing control data set, multiple dosing agents and the dosing quantity of each agent are controlled. According to the method, the dosing database can be determined at least through the pre-trained machine learning model, flotation dosing control is conducted on the mineral products of the mineral product types and the mineral product sources through the dosing database, and the effects of accurately controlling the dosing dosage, improving the flotation dosing precision and improving the target mineral product recovery rate are achieved.

This application provides a hydrogeological exploration water source sampling and testing device and method. The device includes: multiple sampling units arranged side-by-side from top to bottom within a pressure-resistant sealed housing, with their sampling ends penetrating the pressure-resistant sealed housing for simultaneous sampling of target water sources at different depths; multiple dosing units corresponding one-to-one with the multiple sampling units, each dosing unit connected to one of its corresponding sampling units via a dosing pipe, and the remaining sampling units connected to the dosing pipe via branch pipes; multiple pulse cleaning detection units corresponding one-to-one with the multiple sampling units; a lifting and traction mechanism connected to the top of the pressure-resistant sealed housing; and a control terminal for controlling the working status and operation of the sampling units, dosing units, pulse cleaning water sample detection units, and lifting mechanism. This application achieves physically isolated fixed-depth sampling, effectively ensuring the authenticity of water quality testing data for each aquifer, enabling explorers to accurately distinguish the water quality conditions of different aquifers.

The invention discloses a quantitative feeding device for a sewage treatment carbon source. The quantitative feeding device is used for solving the problems that an existing device is poor in water depth adaptation, uneven in feeding and prone to deviation. The device comprises a moving system, a lifting mechanism, a modularized adding assembly and a carbon source conveying system, the moving system comprises a longitudinal rail and a transverse beam, and horizontal two-dimensional movement is achieved. The lifting mechanism controls the modularized adding assembly to ascend and descend; the modularized feeding assembly is formed by detachably splicing a plurality of feeding units, each feeding unit is provided with an independent hose, and a counterweight part is arranged at the lowest part; the carbon source conveying system is used for independently supplying materials to each feeding unit through a hose. The device adapts to different water depths through modular splicing, the independent hoses ensure that the concentration and pressure of each layer of carbon source are consistent, the counterweight piece maintains the vertical state of the assembly and is prevented from being pulled transversely during movement, uniform feeding of the whole pool is achieved in combination with three-dimensional movement, maintenance is convenient and fast, and the device is suitable for nitrogen and phosphorus removal processes of various sewage treatment pools.

A dispensing apparatus is provided. The apparatus includes multiple dosing stations each having an output opening, multiple fall ducts mounted to a mounting beam of a fall duct conveyor and multiple collectors connected to a collector conveyor. Each fall duct includes a first part and an opposing second part detachably connected to the first part, the second part having multiple inlet openings that align with the output openings of the dosing stations, wherein the first and second parts define a space for solids falling from the dosing stations. The collector conveyor moves the collectors together with the fall ducts moved by the fall duct conveyor, wherein the collectors collect the solids falling from the dosing stations.