The automatic dosage machine is an intelligent and integrated device, mainly used for automatically adding chemical agents (such as corrosion inhibitors, scale inhibitors, flocculants, etc.) in industrial systems to maintain stable water quality, prevent scaling and corrosion, or promote pollutant separation. Compared with manual dosing, it can significantly improve efficiency, reduce errors, and lower operation and maintenance costs.
Such equipment is commonly found in central air conditioning cooling water systems, boiler feed water, sewage treatment plants, and petroleum refining processes. Its core objective is to ensure that the agents are uniformly and precisely added as needed, avoiding over-dosage waste or insufficient failure.
Overview of Core Principles
The automatic dosage machine is typically composed of the following key components, and the principles of each part are as follows:
Metering pump: Responsible for injecting the chemical agents at the set flow rate and pressure into the system. Common types include electromagnetic diaphragm pumps and piston pumps, which have high precision adjustment capabilities.
Solution tank/ dosing bucket: Stores the prepared chemical solutions, mostly made of corrosion-resistant PE material, with a semi-transparent design for easy observation of the liquid level.
Control system (PLC/ time control switch): Acts as the "brain", controlling the start and stop of dosing based on preset times or real-time water quality signals.
Mixing device: Used for the dissolution process of dry powder agents to ensure uniform mixing of the solution.
Detection elements (optional): Such as pH meters, ORP meters, and conductivity meters, which implement closed-loop control based on water quality feedback.
Automatic Dosage Machine Parameter Table
|
Parameter Name |
Specific Parameters |
|
Bucket Capacity |
40L-2000L |
|
Applicable Flow Rate of Metering Pump |
From 0.02L/H-1200L/H |
|
System Pressure |
0.2-1.0MPa |
|
Power Supply |
220/50HZ |
|
Working Environment Temperature |
5-45℃ |
|
Working Environment Humidity |
≤85% |
|
Dosage Adjustment |
Adjustable to avoid unnecessary waste of the agent |
|
Bucket Material |
PE material, resistant to chemical corrosion, with good acid and alkali resistance |
|
Control Method |
Uses two-way time control switches to control the metering pump |
|
Dosage Time |
Can be set according to needs |
Application scenarios of automatic dosing machines
Water treatment field
In municipal water supply, PAC coagulant is added to reduce the turbidity of raw water to below 1 NTU; in industrial wastewater treatment, PAM is combined to increase the removal rate of suspended solids to over 95%.
01
Circulating cooling water system
Automatic addition of corrosion inhibitors and scale inhibitors to prevent equipment from scaling and corroding, and extend service life.
02
Wastewater treatment in the chemical and dyeing industries
Separation of refractory organic substances, color, and colloidal particles.
03
Livestock farm management
Precise dispensing of antibiotics or vaccines to increase animal survival rate and reduce drug residues.
04
Chemical nickel plating production line
Online detection of nickel ion concentration and pH value, achieving automatic replenishment of the liquid and ensuring stable coating quality.
05
Characteristics of automatic dosing machines
Compared with manual operation, the dosage of chemicals is saved by 15%-30%, avoiding secondary pollution caused by excessive dosing.
Supports 24-hour continuous operation, significantly reducing the costs of manual inspection and operation.
Automatically generates dosing records and reports to meet environmental protection compliance requirements.
Equipped with low liquid level alarm, fault automatic shutdown, and standby pump switching functions to ensure continuous system operation.
Supports Modbus and Profinet communication protocols, and can be connected to SCADA systems for centralized monitoring.
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