Anhui monopersulfate potassium disinfectant powder dosing device

Anhui monopersulfate potassium disinfectant powder dosing device

Anhui monopersulfate potassium disinfectant powder dosing device

1、 Application of dosing device

The dosing system is a complete set of equipment that integrates dosing, stirring, liquid transportation, and automatic control. It is widely used in power plants' raw water, boiler feedwater, oilfield surface gathering and dehydration treatment systems, various dosing systems in the petrochemical industry, and wastewater treatment systems. Such as adding coagulants, phosphates, ammonia solution, lime water, corrosion inhibitors, scale inhibitors, bactericidal and algicidal agents, etc.

2、 Working structure principle of dosing device

The dosing device mainly consists of a solution tank, a stirrer, a metering pump, a liquid level gauge, an electrical control cabinet, pipelines, valves, safety valves, back pressure valves, check valves, pulsation dampers, pressure gauges, Y-shaped filters, etc.

The dosing device is configured in the mixing tank according to the required concentration of the drug. After being stirred evenly by the mixer, it is put into the solution tank and transported to the dosing point or system by a metering pump. The complete dosing device has the characteristics of compact structure, simple safety, and easy operation and use. The dosing device can also be designed and configured with necessary components according to the requirements of different process flows of users, achieving functions such as automatic remote control.

3、 Precautions for selecting dosing devices

1. When users choose a dosing device, they first determine the specifications based on the amount of solution required by the system (including metering pump parameters, solution tank volume, and other conditions), and then determine the dosing method based on the dosing situation (usually using the "one in use, one backup" method).

2. Select the materials of each component of the dosing device (stainless steel, carbon steel, non-metallic materials), the model of the metering pump (diaphragm pump, plunger pump), or provide our company with the parameters of the added medication (name, concentration, temperature, density, viscosity, corrosiveness, etc.) as needed.

3. Main features of the dosing system:

① Integrated drug design, small footprint, simple structure, and stable performance;

② Easy to measure and adjust, cost-effective, and easy to install and maintain;

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③ The pump is installed by suction, which is not easy to block, has a long running time, and low operating costs;

④ Excellent corrosion resistance and long service life.

⑤ Material of solution tank: PE, fiberglass, carbon steel lined with adhesive, 304 stainless steel, 316 stainless steel;

⑥ Blender material; 304 stainless steel, 316 stainless steel;

⑦ Material of the overcurrent part of the metering pump: PP, PVC, PVDE, SS316;

4、 Application scope of dosing device:

Boiler injection of chemical solution is mainly used in situations where boilers are used in thermal power plants, chemical industry, metallurgy, ships, centralized heating, etc.

Used for pre-treatment and dosing of tap water supply, mainly used in urban water plants, large enterprise owned water plants, textile printing and dyeing, steel, papermaking and other industries.

Dosing in wastewater and sewage treatment in environmental protection is mainly used for wastewater and sewage treatment in cities, industrial and mining enterprises, large hotels, and restaurants.

The main applications of the dosing device are:

1. Dosing in power plant furnaces: ammonia addition to feedwater, hydrazine addition, phosphate addition to boiler water, coordinated control of phosphate addition to boiler water, ammonia addition to condensate water, etc.

2. Dosing outside the power plant: adding coagulants to raw water, adding coagulants to raw water, adding stabilizers (corrosion inhibitors) to circulating water, adding scale inhibitors to circulating water, adding bactericides to circulating water, adding ammonia to the start-up boiler room, adding phosphate to the start-up boiler room, and coating the condenser with ferrous sulfate.

3. Water treatment dosing: adding coagulants, coagulants, defoamers, etc. to sewage.

5、 Type and structure of dosing device

There are several types of automatic control devices for boiler water R values, including dual pump single control combination, three pump dual control combination, and combination type. The structure of each type is slightly different, which will be explained below.

1. Dual pump single control combined automatic dosing device This device consists of a metering box, two metering pumps, a set of variable frequency automatic dosing control system, connecting pipelines, valves, bases, etc. The volume of the measuring box is 1m ³, equipped with a mixer, remote liquid level gauge, liquid level high and low limit alarm, etc. The tank body materials include carbon steel, stainless steel, and lined with rubber. The tank body is used for different medicinal liquids.

2. Three pump dual control combined automatic dosing device

This device consists of two metering boxes, three metering pumps, three sets of variable frequency automatic dosing control systems, connecting pipelines, valves, bases, etc. Among the three metering pumps, pump 3 is the backup pump for pump 1 and pump 2. Normally, pump 1 and pump 2 work under two sets of variable frequency automatic dosing control systems, allowing the pumps to operate in four different ways. The switch on the control cabinet can put the backup pump into operation.

3. Combination type boiler water R value automatic control device