Chemical feeding device adapted to sludge concentration treatment

Abstract

The utility model relates to be applicable to dosing device of sludge concentration treatment, it is equipped with box, the box is divided into two layers in the compartment, and the left and right compartment is two rooms every layer, wherein the two rooms of upper layer are raw material storage bin and dispensing bin respectively, the two rooms of lower layer are medicine storage bin and equipment room respectively, dispensing bin is equipped with dry powder feeder and dispensing stirring pump, and medicine storage bin is equipped with medicine storage stirring pump, and dispensing bin is equipped with the gravity discharge port that communicates medicine storage bin, is equipped with discharge control valve on gravity discharge port, and equipment room is equipped with medicine pump and water adding pump, and the outlet of water adding pump is connected with water supply pipe, and water supply pipe is connected with dispensing bin, and the import of medicine pump communicates medicine storage bin. The utility model realizes the integration of dosing device, and adopts double -deck structure, effectively saves the floor area, especially suitable for the city river and lake dredging and dehydration scene of limited space, improves the applicability and space utilization of equipment.

Description

Technical Field

[0001] This utility model relates to a dosing device adapted to sludge thickening treatment. Background Technology

[0002] In mud thickening and dewatering, chemical agents are often added to accelerate mud-water separation. Several agents may be required, such as the common PAC (polyaluminum chloride) and PAM (polyacrylamide). One common preparation method is to dissolve different agents at specific concentrations in their respective mixing tanks, then pump them into the dosing chamber for mixing. Another method is to weigh out different chemical agents according to a ratio and add them to the water in a mixing tank, stirring until homogeneous. Both methods can obtain the desired slurry (a solution of a certain concentration), but the equipment used needs to be assembled on-site, which is not only cumbersome and time-consuming but also requires a large area, especially for users who frequently change locations. Utility Model Content

[0003] The purpose of this invention is to achieve the integration of a dosing device for the convenience of the user.

[0004] The technical solution of this utility model is as follows: a dosing device adapted to sludge thickening treatment, comprising a box body divided into upper and lower layers, each layer further divided into two compartments (two separate / independent areas). The two compartments in the upper layer are a raw material storage compartment and a dosing compartment, respectively, while the two compartments in the lower layer are a drug storage compartment and an equipment room. The dosing compartment is equipped with a dry powder feeder (referred to as a dry powder feeder) and a dosing mixing pump (or agitator). The drug storage compartment is equipped with a drug storage mixing pump (or agitator). The dosing compartment has a gravity discharge port (referred to as a discharge port) connected to the drug storage compartment, and a discharge control valve is installed on the gravity discharge port. The equipment room is equipped with a chemical pump and a water pump. The outlet of the water pump is connected to a water supply pipe, which is connected to the dosing compartment. The inlet of the chemical pump is connected to the drug storage compartment. Thus, the chemical solution in the drug storage compartment can be delivered by the chemical pump, and water can be added to the dosing compartment by the water pump.

[0005] A drug output connector (e.g., quick-connect connector, pagoda connector, or flange connector) can be installed on the outside of the tank. The outlet of the drug pump is connected to the drug output connector through the connecting pipe inside the tank, and the drug solution drawn from the drug storage tank is sent into the pipe connected to the drug output connector (e.g., drug delivery pipe).

[0006] A water inlet connector (e.g., quick-connect connector, pagoda connector, or flange connector) can be installed on the outside of the tank. The inlet of the water pump is connected to the water inlet connector through the connecting pipe inside the tank. An external water supply pipe is connected to the water inlet connector to supply water to the water pump (dosage tank).

[0007] Suitable dry powder feeders can be selected based on existing technology, such as screw feeders / twin screw feeders and star feeders. The dry powder feeder should have a metering function for accurately dispensing the reagent according to the required amount, and a hopper may be provided when appropriate. Multiple dry powder feeders can be set up, each for different reagents. In cases where only one reagent needs to be added, or where multiple reagents are pre-mixed in proportion, only one dry powder feeder can be set up / used. When appropriate, the same dry powder feeder can also be set up / used, adding one reagent at a time before adding another.

[0008] The mixing pump for dispensing and the mixing pump for storing drugs are used for mixing in the dispensing silo and the storing silo, respectively. The mixing device that can meet the relevant mixing requirements can be selected according to actual needs and installed in an appropriate way.

[0009] Preferably, the dispensing compartment and the storage compartment are located on the left (left side of the floor) and right (right side of the floor) respectively in the horizontal direction, and there is a partial overlap in their horizontal positions (areas with the same horizontal position).

[0010] Preferably, the lateral span of the dispensing compartment and the storage compartment is greater than half of the lateral span of the box body, that is, the dispensing compartment and the storage compartment occupy most of the space in the box body of their respective layers.

[0011] Preferably, the gravity discharge port of the dispensing compartment is located on the partition structure (upper and lower partitions) in the lateral overlapping area of ​​the dispensing compartment and the storage compartment, and the discharge control valve is a normally closed solenoid valve. The discharge port can be in the form of a vertical pipe, and the normally closed solenoid valve can be installed at the lower end of the vertical pipe.

[0012] Preferably, the inlet end of the reagent pump is equipped with an inlet valve, and the outlet end is equipped with an outlet valve.

[0013] Preferably, the inlet valve located at the inlet end of the pharmaceutical pump is a ball valve or a butterfly valve.

[0014] Preferably, the outlet valve located at the outlet end of the reagent pump is a ball valve or a butterfly valve.

[0015] Preferably, a check valve is provided at the outlet of the reagent pump.

[0016] Preferably, the check valve located at the outlet end of the chemical pump is located outside the outlet valve located at the outlet end of the chemical pump (away from the side of the chemical pump).

[0017] Preferably, the water pump is equipped with an inlet valve at the inlet end and an outlet valve at the outlet end.

[0018] Preferably, the inlet valve located at the inlet end of the water pump is a ball valve or a butterfly valve.

[0019] Preferably, the outlet valve located at the outlet end of the water pump is a ball valve or a butterfly valve.

[0020] Preferably, a check valve is provided at the outlet of the water pump.

[0021] Preferably, the check valve located at the outlet end of the water pump is located outside the outlet valve located at the outlet end of the water pump (away from the water pump side).

[0022] Preferably, the top of the medicine preparation chamber is equipped with one or more rotating nozzles (automatic rotating nozzles) for cleaning. The rotating nozzles are connected to the water supply pipe or the outlet of the water pump in the medicine preparation chamber through corresponding connecting pipes, so that water can be supplied by the water pump for cleaning of the medicine preparation chamber. The number and distribution of the rotating nozzles in the medicine preparation chamber are set according to actual needs to meet the cleaning requirements.

[0023] The bottom of the medicine preparation compartment is equipped with a drain port (or drain pipe). The opening and closing of the drain port can be controlled by a plug or valve. The cleaning water can be drained out of the box through the drain port. If necessary, it can be connected to a relevant wastewater collection device through a pipeline.

[0024] Preferably, the top of the medicine storage compartment is equipped with one or more rotating nozzles (automatic rotating nozzles) for cleaning. The rotating nozzles are connected to the water supply pipe or the outlet of the water pump in the medicine storage compartment through corresponding connecting pipes, so that water can be supplied by the water pump for cleaning of the medicine storage compartment. The number and distribution of the rotating nozzles in the medicine storage compartment are set according to actual needs to meet the cleaning requirements.

[0025] The bottom of the medicine storage compartment is equipped with a drain port (or drain pipe). The opening and closing of the drain port can be controlled by a plug or valve. The cleaning water can be drained out of the box through the drain port. If necessary, it can be connected to a relevant wastewater collection device through a pipeline.

[0026] When cleaning nozzles or other cleaning facilities are provided, a cleaning control valve can be installed on the water supply pipe for cleaning as needed.

[0027] The basic usage and beneficial effects of this utility model are as follows: The design of the upper-level dosing chamber makes the drug preparation process more efficient: First, the drug powder and water are mixed in the dosing chamber to form a slurry; then, the normally closed solenoid valve is opened, and the slurry flows into the lower-level storage chamber under gravity. A stirring pump is installed in the storage chamber to ensure uniform mixing of the slurry and prevent sedimentation. Through the linkage design between the dosing chamber and the storage chamber, continuous drug preparation and dosing can be achieved, ensuring the stability and continuity of the dosing process. Both the drug pump (hose pump) and the water pump (pipeline pump) adopt a pre-assembled design, reducing on-site installation and disassembly time and improving equipment deployment efficiency.

[0028] This invention integrates the dosing device and adopts a double-layer structure, which effectively saves floor space. It is particularly suitable for urban river and lake dredging and dehydration scenarios with limited space, thus improving the applicability and space utilization of the equipment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the elevation structure of this utility model; Figure 2 This is a schematic diagram of the upper planar structure of this utility model; Figure 3 This is a schematic diagram of the lower planar structure of this utility model.

[0030] The markings in the diagram are: 10, raw material storage silo; 17, detachable lighting; 20, dosing silo; 21, water pipe interface; 22, water pump; 23, water supply pipe; 24, dry powder machine; 25, discharge port; 26, dosing mixing pump; 30, drug storage silo; 36, drug storage mixing pump; 38, reagent pump; 40, equipment room; 44, electrical control box. Detailed Implementation

[0031] See Figures 1 to 3 This integrated dosing device features a double-layer structure within its casing (or shell, or dosing tank). The upper layer houses a dosing chamber 20 and a raw material storage chamber 10, while the lower layer contains a storage chamber 30 and an equipment room 40. During continuous operation, after the reagent is prepared in the upper dosing chamber, it flows into the lower storage chamber by gravity through the opening of a normally closed solenoid valve (not shown) at the discharge port 25. The dosing pump in the equipment room then delivers the prepared reagent to subsequent systems.

[0032] The upper raw material storage silo is equipped with a detachable lighting fixture 17 for easy maintenance and operation. The mixing silo is equipped with a mixing pump (for the mixing silo) 26 for mixing the reagents, and a dry powder feeder (or dry powder feeding device) 24 for accurate weighing (measuring) and dosing of the reagents. The upper mixing silo has an vent and a vent valve for easy cleaning and maintenance. When appropriate, the vent and vent valve can be a discharge port and a discharge valve, meaning the mixing silo is emptied through the discharge port and discharge valve. The discharge valve is a normally closed solenoid valve. After mixing is complete, the discharge valve opens, and the liquid reagent flows into the lower storage silo by gravity.

[0033] The lower-level drug storage chamber is equipped with a drug storage stirring pump (stirring pump for stirring the drug storage chamber) 36, which prevents drug sedimentation and ensures uniform drug distribution through stirring. A flexible hose pump (drug output pump) 38 is installed in the equipment room, with a reserved flexible hose pump interface for easy drug addition. The inlet of the flexible hose pump connects to the drug storage chamber, and the outlet end connects to the drug output pipe. An inlet valve (ball valve or butterfly valve) is installed at its inlet end (on the inlet pipe), and an outlet valve (ball valve or butterfly valve) and a check valve are installed at its outlet end (on the outlet pipe). A pipeline pump (used as a water supply pump 22) is installed in the equipment room to supply water to the upper-level drug preparation chamber. A water supply pipe 23 connects to the drug preparation chamber. An inlet valve (ball valve or butterfly valve) is installed at the inlet end (on the inlet pipe) of the pipeline pump, and an outlet valve (ball valve or butterfly valve) and a check valve are installed at the outlet end (on the outlet pipe). A water pipe interface (interface pipe) connecting to the inlet of the water supply pump is provided on the outside of the tank for connecting to an external water supply pipeline. The equipment room is also equipped with an electrical control box 44, which centrally controls the operation of each piece of equipment.

[0034] The chemical pumps (e.g., hose pumps) and water pumps (e.g., pipeline pumps) are designed to be pre-assembled to reduce on-site installation and disassembly time, improve equipment deployment efficiency, and reduce construction costs.

[0035] An electrical control box can be installed based on existing technology to provide power and control to various pumps and valves. The electrical control box can be fixedly installed in a suitable location within the equipment room, for example, on the side wall of the equipment room, and its height from the ground (from the bottom surface of the equipment room) can be determined based on existing technology.

[0036] Valves, pumps, and testing instruments can be installed on each pipeline according to actual needs and existing technology.

[0037] The overall design of this utility model optimizes the processes of drug storage, preparation, and dosing, improving operational efficiency and safety. The linkage design between the preparation and storage compartments enables continuous preparation and dosing of drugs, ensuring the stability and continuity of the dosing process, while also optimizing space utilization and improving operational efficiency.

[0038] The term "pre-assembly" in this invention refers to assembly that has been completed before on-site assembly.

[0039] The terms "left" and "right" in this invention are used only to describe / limit the relative positional relationship of related parts (components, structures, devices, etc.) and are not used to limit the orientation in actual use.

[0040] Unless otherwise specified, the preferred and optional technical means disclosed in this utility model can be arbitrarily combined to form several different specific embodiments when one preferred or optional technical means is a further limitation of another technical means.

Claims

1. A dosing device suitable for sludge thickening treatment, characterized in that... The container is divided into upper and lower levels, with each level further divided into two compartments on the left and right. The two compartments on the upper level are for raw material storage and drug preparation, while the two compartments on the lower level are for drug storage and equipment room. The drug preparation compartment is equipped with a dry powder feeder and a drug preparation mixing pump, and the drug storage compartment is equipped with a drug storage mixing pump. The drug preparation compartment has a gravity discharge port connected to the drug storage compartment, and a discharge control valve is installed on the gravity discharge port. The equipment room is equipped with a drug pump and a water pump. The outlet of the water pump is connected to a water supply pipe, which is connected to the drug preparation compartment. The inlet of the drug pump is connected to the drug storage compartment.

2. The dosing device as described in claim 1, characterized in that... The dispensing compartment and the storage compartment are located on the left and right sides respectively in the horizontal direction, and there is some overlap in their horizontal positions.

3. The dosing device as described in claim 2, characterized in that... The lateral span of the dispensing and storage compartments is greater than half the lateral span of the main body.

4. The dosing device as described in claim 3, characterized in that... The gravity discharge port of the drug preparation compartment is located on the partition structure in the lateral overlapping area of ​​the drug preparation compartment and the drug storage compartment, and the discharge control valve is a normally closed solenoid valve.

5. The dosing device as described in claim 1, characterized in that... The inlet of the chemical pump is equipped with an inlet valve, and the outlet is equipped with an outlet valve.

6. The dosing device as described in claim 5, characterized in that... The inlet valve at the inlet end of the chemical pump is a ball valve or a butterfly valve, and the outlet valve at the outlet end of the chemical pump is a ball valve or a butterfly valve.

7. The dosing device as described in claim 5, characterized in that... The outlet end of the chemical pump is equipped with a check valve, which is located outside the outlet valve at the outlet end of the chemical pump.

8. The dosing device as described in claim 1, characterized in that... The water pump is equipped with an inlet valve at the inlet end and an outlet valve at the outlet end.

9. The dosing device as described in claim 8, characterized in that... The inlet valve at the inlet of the water pump is a ball valve or a butterfly valve, and the outlet valve at the outlet of the water pump is a ball valve or a butterfly valve.

10. The dosing device as described in claim 9, characterized in that... The water pump is equipped with a check valve at the outlet end, which is located outside the outlet valve at the outlet end of the water pump.

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