ZZC Series Rotor Powder Feeding System
ZZC series rotor powder feeding system is the measuring equipment, developed and applied for powder feeding, on the basis of absorbing foreign advanced powder feeding technology. It is widely used for measuring and control of coal ash, fly ash, limestone, carbide slag and alumina, etc.
1. ZZC Series Rotor Powder Feeding System composition:
1.1 Spiral gate valve;
1.2 Pre-feeder (FRC powder feeder, star shape feeder, screw feeder, a set of valves);
1.3 ZZC rotor scale;
1.4 Flexible connection;
1.5 Control system, etc.
2. Rotor Scale's Structure and Principle:
The rotor scale weighs material weight by using balance structure. Motor, impeller rotor and disc compose the balance body, weighing blade supports on the frame, entrance and exit use flexible connections, do not affect the balance body bearing stress and turning, and ensure the body balanced on both sides when designing. Due to the rotating impeller, the material flows uniformly within half a circumference from entrance to exit in the process of powder supply. The load cell can accurately measure the weight of the powder on the semi-circle. Weight signal and impeller speed signal calculated within the microcomputer and then get flow rate signal. After comparing with the setting value, the controlled variable will be passed to the frequency conversion motor (including the pre-feeder frequency conversion motor). Adjusting the speed of rotor scale and pre-feeder can adjust the powder flow rate.
DEL Belt Weighfeeder
Product Overview:
JD (DEL/DEM) Belt Weighfeeder is the ideal equipment of massive, granular and powdered materials which can realize continuous automatic weighing, dosing and batching. It is widely used in building materials, chemicals, metallurgy, coal, grain, feed and other related industries.
1, Technical Specification:
Feeding accuracy: Superior to ± 0.5%.
Feeding ability: 0.5~2000 t/h.
Feeding adjusting range: 1: 10.
Operating environment:
Instrument: -10~50 degree Celsius.
Scale body: -30~50 degree Celsius.
Relative humidity: 90%.
Power supply: 380VAC+10%-15%, 50Hz± 2%.
2\Model, Specification:
DEL is light weight, drum's diameter is190mm; Idler's diameter is58mm, applicable to the condition of smaller pressure, flow rate and lighter load.
DEM is heavy weight, drum's diameter is320mm; Idler's diameter is106mm, applicable to the condition of larger flow rate and heavy load.
ZZC Series Rotor Powder Feeding System
ZZC series rotor powder feeding system is the measuring equipment, developed and applied for powder feeding, on the basis of absorbing foreign advanced powder feeding technology. It is widely used for measuring and control of coal ash, fly ash, limestone, carbide slag and alumina, etc.
1. ZZC Series Rotor Powder Feeding System composition:
1.1 Spiral gate valve;
1.2 Pre-feeder (FRC powder feeder, star shape feeder, screw feeder, a set of valves);
1.3 ZZC rotor scale;
1.4 Flexible connection;
1.5 Control system, etc.
2. Rotor Scale's Structure and Principle:
The rotor scale weighs material weight by using balance structure. Motor, impeller rotor and disc compose the balance body, weighing blade supports on the frame, entrance and exit use flexible connections, do not affect the balance body bearing stress and turning, and ensure the body balanced on both sides when designing. Due to the rotating impeller, the material flows uniformly within half a circumference from entrance to exit in the process of powder supply. The load cell can accurately measure the weight of the powder on the semi-circle. Weight signal and impeller speed signal calculated within the microcomputer and then get flow rate signal. After comparing with the setting value, the controlled variable will be passed to the frequency conversion motor (including the pre-feeder frequency conversion motor). Adjusting the speed of rotor scale and pre-feeder can adjust the powder flow rate.
Electronic Belt Weigher
Electronic Belt Weigher, manufactured and installed on belt conveyor, is used for weighing and measuring of continuous material flow and cumulant. It has features of high accuracy, reliability and meeting the needs of various poor environment industry occasions. It is widely used for industries of building material, chemical, metallurgy, coal, grain, forage and electric power, etc.
1. Main features:
1.1 Weighing range: 0.1~5000t/h;
1.2 Weighing mode: Single idler, double idlers, four idlers;
1.3 Weighing accuracy: ± 0.5%;
1.4 Max inclination and idler grooved angle of belt conveyor: Angle of inclination: 0° ~18° ; Grooved angle: 0° ~35° ;
1.5 Instrument display instantaneous flow rate, cumulant, load and speed;
1.6 Instrument has signal transfer function and interacts with upper computer by switch analog. It has protocol interfaces of RS-232C\RS-485C\MODELBUS and can realize the function of FROFEIBUS DP by external module.
1.7 Alarm for overrun of belt load;
1.8 In the condition of power-off, parameters permanently saved, the data saved for 10 years.
1.9 Operation environment: Instrument: -10~50 degree Celsius; Scale frame: -30~50 degree Celsius; Relative humidity: 90%; Power supply: 24VDC;
2. Working theory:
Belt weighter is used for weighing measurement of various flow rate and continuous material.
The load cell gets some belt's load, the longer the measuring section belt's length is, the less measuring result will be affected by outside environment. Load cell measures the belt's load, and speed sensor measures the speed of belt. These two variables multiply and get the instantaneous flow rate. Then the accumulation of instantaneous flow rate will get the total amount of conveying material.
LCXK Series Control Instruments
LCXK measuring and control system is designed for continuous feeding equipment. The system is not only suitable for single feeding system, but also suitable for small scale combination controlled by host computer. So it needs to provide appropriate solutions for precise feeding occasion. The weighing environment has no special requirements. LCXK measuring and control system can be used in measuring equipments as follow:
1. Belt weighers or pre-feeding belt weighers;
2. Weighfeeders;
3. Coriolis mass flow meters;
4. Loss-in-weight feeders;
5. Screw scale;
6. Rotor scale;
7. Solid flow meter.
Application:
1. Continuous weighing compact control system;
2. Integrated display and control panel;
3. Optimize communication structures by bus technology;
4. With self-test and diagnostic functions, stable and reliable operation;
5. With the automatic calibration procedure, easy to operate;
6. Applied to any automatic occasions.
Structure features:
Although the LCXK measuring control system's functions depend on application software, which installed in the instrument and against vary scale types, they have the same features as below:
1. System accuracy better than 0.2%;
2. Precise speed measurement;
3. Optimal feed control for accurate batching via an adaptive control circuit;
4. High electromagnetic compatibility;
5. Galvanically isolated outputs;
6. Fail-safe data memory (EEPROM);
7. Integrated diagnostics and self-testing functions (SPC);
8. Preset with default values for easy and quick commissioning;
9. Automatic calibration programs, theoretical span calibration without auxiliaries;
10. Totalizing pulse (level and pulse width set by parameter);
11. State, event, calibration and cumulative output;
12. Simulation module for testing and learning.
The LCXK measuring, control system with display and control panel is the most economic and reliable choice for you.
