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HP Constant speed quantitative feeder

Key words:

吨袋式包装机

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Measurement feeding and conveying equipment

Key words:

HP Constant speed quantitative feeder

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　Product Overview

　　HP constant speed quantitative feeder (commonly known as constant speed belt feeder) is a new type of belt scale developed successfully by our company, which has the features of simple structure, small volume, easy installation, reasonable measurement mode, smooth operation, high measurement accuracy, etc. Compared with speed regulating scale and cantilever belt scale, the measurement accuracy is not affected by the belt jitter, belt thickness and roundness of the carrier stick, etc. The full-load measurement can be accurately calibrated by static way. Adopting full-load measurement, it can be accurately calibrated by static way, the field operation is very simple, and the calibration structure can meet the accuracy requirements. The constant speed quantitative feeder can be widely used in building materials, metallurgy, chemical industry, glass, ceramics, rubber, refractory materials, feed and grain and other industries, as a powder material, particles and small pieces of non-viscous materials such as measurement and flow control. The feeding equipment of constant speed quantitative feeder can choose electromagnetic vibrating feeder, belt conveyor, screw feeder and disc feeder, etc. HP belt constant speed quantitative feeder can be widely used in building materials, metallurgy, chemical industry and grain and other industries, as the measurement and flow control equipment for non-viscous materials, such as powder, granules and small pieces of materials.

　Technical characteristics

　 1. Supporting Shenk series star-shaped cycloid gear motor, low noise, low vibration, anti-dust, long life, high reliability.
2. Unique hanging weighing method, high measuring precision, simple structure, excellent performance, reliable and stable operation.
3. The scale frame is made of cold-formed C-type steel plate, with novel structure and high strength, suitable for the design of various specifications of non-standard scales;
4. Ring-type jointless belt, can be selected according to the process: flat belt, baffle structure, skirt belt structure;
5. hanging belt scales by three high-precision tension sensors hanging vertically as a measuring mechanism, feeding can be used electric vibration machine, feeding belt machine or other conveying equipment.

　Main technical parameters

　1、Static measurement accuracy: 0.5%
2, dynamic measurement accuracy: ± 1% (equivalent accuracy)
3, measurement range: 0.2-30 tons / hour
4, the belt to adapt to the temperature: less than 50 ℃ (ordinary belt) or 80 ℃ (heat-resistant belt)
5、Using environment: -20℃～+50 ℃.
6、Control part It can be controlled by intelligent meter or industrial control machine system.

　Selection table

Model parameters	Belt width(mm)	Distance between master and slave pulleys(mm)	Maximum line speed(m/s)	production capacity (m³/h)	Motor power(kw)
HP500a	500	1000	0.143	19	0.75
HP650a	650	1000	0.143	29	0.75
HP800a	800	1200	0.134	40	1.1
HP1000a	1000	1200	0.134	56	1.5
HP500b	500	1000	0.29	40	0.75
HP650b	650	1000	0.29	50	1.1
HP800b	800	1200	0.293	80	1.1/1.5
HP1000b	1000	1200	0.293	120	1.5
HP1200b	1200	1500	0.36	160	2.2
HP1400b	1400	1500	0.36	200	2.2/3.0

　Working Principle

　　The control system controls the unloading flow of the relevant materials through the static weighing feeding system (silo, feeder and scale) and the variable speed motor or electric vibrator. Each time the machine is switched on or during the working process, it can be automatically calibrated to the zero point of the weighing body to ensure the accuracy of the measurement. The material is unloaded (by means of a spiral, vibrating tube or trough) from the constant speed weighing belt machine and the “weight loss” per unit of time is compared with the required feed quantity. The difference between the actual measurement and the pre-set quantity is controlled and corrected by the feed controller, which outputs analog signals to control the frequency converter or other actuators to automatically adjust the unloading quantity, maintaining fast and accurate unloading quantities without any lag in the process. The controller outputs analog signals to control the frequency converter or other actuators to automatically adjust the unloading volume, maintaining fast and accurate unloading volume without process lag.
HP belt type constant speed quantitative feeder when the measured weight in the silo reaches the lower limit position of the weighing hopper, the discharging screw machine or other actuators will fix the discharging amount according to the rotating speed at that time, and control the materials in the silo to go down to the weighing hopper quickly (manually or automatically), stop loading when the material is loaded to the upper limit of the weighing, the quick loading can shorten the time of feeding, and the system will restore the loss-in-weight measurement mode automatically, this mode can improve the accuracy of weighing more. The system automatically resumes the loss-in-weight weighing mode, which improves the weighing accuracy and control precision. In batch weighing loss-in-weight systems, the design is similar to that of continuous loss-in-weight systems, however, the accuracy of the final weight of the feeding (batch) cycle is higher than that of the actual feed volume control.
The electromagnetic vibrating feeder used in the HP Belt Constant Velocity Quantitative Feeder is a device that conveys materials under the action of a directional electromagnetic force. This equipment has harnessed power is small, there is no large starting current, does not cause network voltage drop, amplitude instantaneous can reach a stable value, you can immediately stop and run and so on, and also can be smooth stepless adjustment of the feeding volume, to achieve automatic control. However, the current domestic production of electromagnetic vibrating feeder, there are large size, voice, control part of the complexity of the price and other shortcomings.GZ series of electromagnetic vibrating feeder is used to block, granular and powdery materials, from the storage silo or hopper in a uniform and continuous or quantitative feeding to the receiving device, can be infinitely adjustable feeding volume, and to achieve the centralized control of the production process and automatic control. It is small in size, light in weight, easy to install, no rotating parts, no lubrication, easy to maintain, high working frequency, and consumes less electric energy. It is widely used in mining, metallurgy, coal, chemical industry, electric power, machinery, food and other industries. The maximum output of 1000T per hour is divided into sealed type and open type. On the basis of absorbing advanced technology at home and abroad, our company has recently designed a new type of GZ electromagnetic vibrating feeder, whose structure is shown in the figure.

　structure plan

嘉恒智能