A feeder is an advanced feeding equipment with advanced economic and technological indicators. Compared with other feeding equipment, it has the following characteristics: ① small volume, light weight, and simple structure; ② Easy installation and maintenance, low operating costs; ③ High efficiency and large feeding capacity; ④ Low noise is beneficial for improving the working environment; ⑤ Low power consumption and high power factor; ⑥ This device operates in a state far beyond resonance, resulting in stable amplitude, reliable operation, and strong adaptability to various materials Adding ingredients requires adjusting the eccentric block to easily and continuously adjust the feeding amount. Simple structure, uniform feeding, good continuous performance, adjustable excitation force; Change and control traffic at any time, easy to operate; Eccentric block is the excitation source, with low noise, low power consumption, good adjustment performance, and no material flushing phenomenon; If a closed body is used, it can prevent dust pollution, ensure smooth vibration, reliable operation, and long service life.

In the sand and gravel production line, continuous and uniform feeding can be provided to the crusher to avoid blockage of the crusher’s feeding port. The machine uses the eccentric block in the vibrator to rotate and generate centrifugal force, causing the movable parts such as the sieve box and vibrator to move in a forced continuous circular or approximately circular motion. The material is continuously thrown on the inclined screen surface along with the screening chamber, and is continuously and evenly delivered to the receiving port.
Generally, it is composed of a vibrating frame, a vibrating body, a vibrating motor, an exciter, springs (springs are divided into excitation springs and support springs), etc. Figure 2 shows the general structure of the ZG type activated vibration coal feeding system applied to power plants. The ZG type activated vibration coal feeder is a dual mass linear sub resonant type vibration machine, and its system mainly consists of five parts: resonant body, activation cone, exciter, vibration motor, and elastic element.

Specially designed for uniformly conveying large blocks of material before the coarse crusher in crushing and screening. The vibrating feeder adopts the structural characteristics of a double eccentric shaft exciter, ensuring that the equipment can withstand the impact of large material falling and has a large feeding capacity. In the production process, block and granular materials can be uniformly, timed, and continuously fed from the storage bin to the receiving device, thereby preventing the device from crashing due to uneven feeding and extending the service life of the equipment. Feeders can be divided into steel plate structure and grate structure. Steel plate structure feeders are mostly used in sand and gravel production lines to evenly feed all materials into crushing equipment; The feeder with a grate structure can perform coarse screening on materials, making the system more economical and reasonable in preparation. It has become an essential equipment in crushing and screening.

The vibrating feeder uses the eccentric block in the vibrator to rotate and generate centrifugal force, causing the movable parts such as the sieve box and vibrator to move in a forced continuous circular or approximately circular motion. The vibrating feeder is composed of a feeding tank, exciter, spring support, transmission device, etc. The vibration source of the trough vibration feeding is the exciter, which is composed of two eccentric shafts (active and passive) and a gear pair. The exciter is driven by an electric motor through a V-belt to drive the active shaft, and then the passive shaft is rotated by the gear meshing on the active shaft. The active and passive shafts rotate in the opposite direction at the same time, causing the trough to vibrate and continuously flow the material, achieving the purpose of conveying the material.

The vibrating feeder has a simple structure, uniform feeding, good continuous performance, and adjustable excitation force; Change and control traffic at any time, easy to operate; Eccentric block is the excitation source, with low noise, low power consumption, good adjustment performance, and no material flushing phenomenon; If a closed body is used, it can prevent dust pollution, ensure smooth vibration, reliable operation, and long service life; It can adjust the excitation force, change and control the flow rate at any time, and adjust conveniently and stably; The vibration motor serves as the excitation source, with low noise, low power consumption, good regulation performance, and no material flushing phenomenon. The vibrating feeder has a simple structure, reliable operation, easy adjustment and installation, light weight, small size, and convenient maintenance. When using a closed structure body, it can prevent dust pollution.