Overview of fully automatic three box flocculant preparation device

Three box flocculant preparation deviceThe main function is to prepare flocculants (polyaluminum chloride PAC, polyacrylamide PAM) powder into solution. The main material is SS304 stainless steel. The three box flocculant preparation device has an integrated structure with three boxes. During the flocculant preparation process, the three boxes can work synchronously, and the dissolution and stirring of flocculant powder, the maturation of reagents, and the storage of reagents can operate synchronously.

Three boxes of flocculant preparation device, each box is equipped with a dissolution mixer, with a speed ratio of 17 and a stirring speed of 83 revolutions per minute. A spiral powder is installed at the top of the boxconveyorEquipped with a powder box and conveying device, equipped with an automatic stepless speed regulator, the accuracy can reach 2 revolutions per minute, and the powder amount can be accurately adjusted.

What is the function of flocculant

Some customers are not familiar with the function of the three box flocculant preparation device, so let's start with the function of the flocculant itself. coagulants have many functions, especially in the field of water treatment, especially in the sewage treatment industry. The flocculation precipitation method has become an important process that cannot be ignored in the sewage treatment industry. The general principle process is as follows: inorganic flocculants (such as flocculants) and organic anionic flocculants polyacrylammonium (PAM) are used to prepare an aqueous solution and added to the wastewater, which will produce a compressed double layer, causing the suspended particles in the wastewater to lose stability, and the colloidal particles to agglomerate with each other, causing the particles to increase and form flocs and alum flowers. After the floc grows to a certain volume, it separates from the aqueous phase and precipitates under the action of gravity, thereby removing a large amount of suspended solids in the wastewater and achieving the effect of water treatment.

Structure of a three box flocculant preparation device

With the continuous development of dosing system technology, the structure of the three box flocculant preparation device is constantly changing in design. In terms of use, the integrated dosing device can be divided into simple dosing device, semi-automatic dosing device, and fully automatic three box flocculant preparation device (including dry powder feeding system). Structurally speaking, it is divided into single tank structure dosing device, double tank dosing device, three box flocculant preparation device, and high-low dosing device. No matter how it changes, the design of the three box flocculant preparation device developed by Shanghai Longyu Machinery always starts from the actual needs of users and is customized according to the installation environment and functional application requirements.

Description of three box flocculant preparation device

The three box flocculant preparation device produced by Shanghai Longyu is a fully automatic flocculant dry powder brewing and feeding equipment. It is an intelligent follow-up, fully automatic, and continuous feeding device that has a wide range of applications in the fields of water supply, reclaimed water, and drainage. It is an essential component of physical and chemical treatment. Its operational effect directly affects the processing efficiency of the entire process, and drug consumption is a major expense in the operation of the system. This three box flocculant preparation device can achieve fully automatic dry powder preparation and addition, with high cost-effectiveness, accurate dosage, high degree of automation control, simple operation, and convenience. The range of the prepared solution is 0-4165 liters/hour, and the concentration of the flocculant is set within the range of 1% -10%.

Characteristics of the three box flocculant preparation device produced by Longyu

• The three box flocculant preparation device adopts a three tank integrated (mixing tank, maturation tank, storage tank) continuous brewing method, which is easy to operate and maintain, and has low labor costs;

• Designed with dual feeding functions for powder or liquid (optional), it can meet different user needs;

• It has a proportional blending function and can adjust the required concentration of the brewing solution according to actual needs;

• The concentration of the foam produced by this machine is uniform and moderate, which can reduce the occurrence of particle formation caused by improper manual mixing, resulting in pipeline or pump blockage, and increasing unnecessary personnel maintenance costs and powder expenses;

• The three box flocculant preparation device is fully equipped with PLC and touch screen control, ensuring stable system operation and simple and clear menu operation.

• The powder feeding trough has anti condensation heating and insulation function (optional), which can prevent the powder from getting damp, clumping or deteriorating;

• The drug liquid mixer of the three box flocculant preparation device has a good fusion effect and unique innovative function;

• The design features a unique standby time with automatic intermittent and pause cross stirring functions, ensuring even fusion of the brewing solution and maintaining it in a suitable state for use;

• When the powder feeding tank reaches a low inventory level, the powder detection device senses and sends an alarm signal, causing the system to stop running and enter a protective state, resulting in more perfect overall controllability.

Three box flocculant preparation device description

1Three boxes of flocculant preparation device box

• Made of 304 stainless steel material, corrosion-resistant and acid and alkali resistant;

• The box is a three slot flat flow structure;

• The bottom of the box adopts a standard base, which is convenient for forklift handling and movement;

• The internal structure of the box is strengthened.

2Mixing mixer

• Provide at least three sets of uniform equipment in coordinationDosing mixer.

• The parts in contact with the liquid (blades and shaft) are made of stainless steel material.

• The rotational speed of 83 revolutions per minute can avoid damaging the properties of the polymer solution due to shear forces.

• The protection level of the motor casing should be IP55, and the insulation level should be F.

3Powder feeding system

• The material of the storage funnel is 304 stainless steel.

• Install a vacuum suction machine at the top to achieve automatic suction (optional);

• There is a shaking device at the bottom to prevent bridging reactions and smooth movement of the powder;

• Equipped with a spiral feeder, the powder can be quantitatively transported from the storage funnel to the mixing equipment;

• The supply of the feeder is adjustable and made of stainless steel material;

• The main driving device is a variable speed motor with a protection level of IP55;

• The supplier is equipped with an anti condensation heater (100W optional) to prevent the powder from getting wet and clumping.

4Material level detection and alarm system

• The three box flocculant preparation device can be equipped with a powder detection device on the funnel to stop the foaming system when the powder is insufficient.

• The top is equipped with a vacuum suction machine. When the material level is insufficient, the suction machine automatically starts. When the material level reaches a high level, the automatic suction machine stops.

5Dilution water metering system

• Wen's injection mixer relies on the pressure of water to generate vortices to mix wet powders.

• The inlet part is equipped with an electromagnetic flowmeter, which is combined with a dry powder feeder to achieve closed-loop control. The ratio of water addition and dosage is mixed to ensure a constant concentration of the drug solution.

6Liquid level control system

• Five pin electrode level gauge:

• Voltage: 220VDC

• Output signals: ultra-high, high, medium, low signals;

• Low to medium liquid level: Fully automatic start of the entire system;

• High liquid level: Fully automatic shutdown of the entire system;

• Ultra high liquid level alarm.

7Centralized control box

• Indoor IP55 protection includes three sets of standard switches.

Control logic of three box flocculant preparation device

• It has automatic/manual free selection operation.

• After the high-level system stops running, the mixer has the function of intermittent start and stop alternation to prevent long-term static unevenness of the liquid medicine.

Working process of three box flocculant preparation device

• When the three box flocculant preparation device system is started and detects that the flocculant solution in the storage box is below the medium liquid level, the system will automatically start. Firstly, the solenoid valve of the water supply system is opened, and the electromagnetic flowmeter detects the water supply flow rate. After a delay, the dosing machine is started to operate, and the system performs proportional batching according to the set concentration. Water and dry powder flocculants enter the cyclone premix at a constant ratio for pre mixing, and then flow into the mixing tank for stirring and mixing. The mixer in the configuration box adopts a specially designed multi-layer blade method, which avoids the agglomeration phenomenon of dry powder during the dissolution process.

• When the preparation tank is filled with liquid, it overflows to the maturation tank and is stirred and mixed again here. When it is filled and overflows to the storage tank, the required liquid can be continuously and automatically added to the equipment through a dosing (screw) pump.

• When the liquid level in the storage tank of the three box flocculant preparation device reaches a high level, the system automatically stops dispensing until the liquid level in the storage tank is lower than the medium level, and then the system automatically starts dispensing again.

• If the liquid level in the storage tank drops to a low level, the system will automatically alarm and stop after a delay. At this point, the staff identified the cause of the malfunction and after eliminating it, the device must be restarted before it can be put into the normal process of preparing medication.

Selection of three box flocculant preparation equipment

Application fields of three box flocculant preparation device

1The three box flocculant preparation device can be applied to sewage treatment

• Flocculation treatment of municipal or industrial wastewater

• Treatment of sludge dewatering process

• Third and fourth level treatment of municipal wastewater

2Three box flocculant preparation device for drinking water purification treatment

• The use of surface water as a water source in a water plant can improve the purification and sedimentation effects.

3Three box flocculant preparation device for other industry applications

• In the treatment process of industrial wastewater in the chemical, electroplating, food and beverage industries, the use of this device greatly reduces costs and alleviates the burden on municipal wastewater treatment plants.

• Wastewater treatment in the paper industry

• Wastewater treatment during ore smelting process

• brine disposal

• Preparation of sand and gravel