Vibrating feeder

Vibrating feeder

【Feed grain size】: 300-1050mm

【Production capacity】: 80-1000t / h

【Application】: sand and gravel field, concrete sand, dry mortar, sand, power plant desulfurization, quartz sand, etc.

【Applicable materials】: river pebbles, granite, basalt, iron ore, limestone, quartz stone, coal gangue, construction waste, etc.

Working principle of vibrating feeder

Vibrating feeder is the use of vibrators in the eccentric block rotation to produce centrifugal force, so that the screen, vibrator and other movable parts forcing a continuous round or nearly circular motion. The material is with the sieve in the inclined screen surface for continuous throwing movement, and continuous uniform material to the receiving mouth.

When the bottom plate along with the material forward movement, the material inside the bin to fill the body of the space. When the bottom plate moves backwards, the material on the floor can not be returned and blocked to achieve feeding. Change the height, frequency and height of the floor movement to adjust the feed volume.

Feeding is generally within 40 tons / hour. This type of feeder for medium and small size of the material, there are two kinds of trough and pendulum. The bottom plate of the trough feeder is flat and reciprocates at work. The bottom plate of the pendulum feeder is curved, hinged to the body, and the floor is swung at work.

The vibrating feeder consists of a rotatable disc, a guide sleeve and a scraper. The material in the silo is stacked on a disc with a wear-resistant liner by means of a guide sleeve. The disc is rotated and the material is scraped off by the scraper. Adjust the position of the scraper or the height of the guide sleeve to change the feed volume. Disc diameter is generally below 3 meters, the speed does not exceed 10 r / min. Disk feeder is smooth and reliable operation, adjust the feed volume is more convenient, less energy consumption, but the structure is relatively bulky, suitable for smaller particles of granular material.

Some of the vibrating feeder from the chassis and impeller composition. The upper and lower ends of the cabinet are connected with the silo and the material feeder. When the impeller rotates around the horizontal axis, the material falls between the cavities of the impeller and is unloaded into the receiving equipment after half of the rotation of the impeller. Uniform pressure pipe can enter the material area before the cavity to the high pressure, so as not to feed the material can not feed.

Change the impeller speed to adjust the feed volume. Impeller diameter is generally below 500 mm, the speed does not exceed 45 r / min. This vibrating feeder structure is relatively simple, small size, light weight, good adhesion when feeding, suitable for small size and powder materials.

Vibrating feeder Requirements for Belt Quality, Width, Speed

In the transport of the dosing machine, the belt has a very important role, can effectively and quickly transfer material gravity transmission mechanism. Therefore, the performance, quality, size and working conditions of the belt have a direct and important effect on the workability and feed accuracy of the belt scale dosing machine. The following is to understand the vibrating feeder on the belt quality, width, speed requirements.

  • First, the quality of the belt requirements
  • Dosing conveyor belt, can be used high-quality laminated rubber belt or plastic belt, the current domestic rubber belt is divided into ordinary type, impact type, heat-resistant, flame retardant, cold type, but generally The use of wear-resistant rubber belt at room temperature.

    The thickness of the face of the general 2-3mm, non-working surface of the plastic thickness of 1.5mm. Generally used 1-4 layer with core. Thickness deviation is not greater than the nominal value of 0.5mm, the unit length of the mass deviation of not more than 3% of the average.

  • Second, belt broadband
  • vibrating feeder belt broadband, mainly based on the feeder's maximum instantaneous load, material size and other physical properties and belt speed to determine the comprehensive. Although the belt width has been determined in the selection of the production plant, but the user in the process, especially when the material or material physical properties change is large, often also need to re-test or selected.

  • Third, the belt speed
  • The conveyor speed of the dosing machine is different from that of the conveyor, which is mainly to ensure sufficient feed accuracy, rather than simply pursuing the transport efficiency. Therefore, the general belt speed between 0.05-0.5m / s, the use of this low speed, the smooth operation, the material evenly stable, reduce vibration, reduce the material resistance, reduce belt wear and improve the feed accuracy is special important. According to the experience at home and abroad, the speed of the dosing machine is generally 0.5m / s.

How does the vibrating feeder be maintained?

Reasonable maintenance of a good dosing machine, can increase the life of the dosing machine, thereby increasing the profits of enterprises. Here's how:

  • 1, often clean the electric control cabinet electrical components and lines of dust, weighing the cabinet is the core components of the cabinet, non-professionals do not open without permission.
  • 2, often check the load cell and load-bearing screw between the good contact, long-term shutdown or maintenance should be adjusted to protect the bolt will be slightly raised weighing frame to prevent abnormal pressure on the sensor.
  • 3, often check the belt running conditions, if the belt deviation, should be properly adjusted belt tension roller position, and timely system of belt weighing and zero set.
  • 4, daily cleaning weighing frame cross reed, inside and outside the belt, the sensor between the pressure head debris.
  • 5, replace the sensor, replace the belt, replace the control instrument, have to re-system inspection or debugging.
  • 6, reducer to regularly change the oil, oil change according to the instructions on the lubricants provided by the brand and type, and pay attention to oil cleaning and quality.
  • 7, quantitative vibrating feeder in the course of operation, if the control instrument shows a alarm event, should be timely targeted inspection, remove the cause of the accident, to prevent the system sick work.
  • 8, the rack to be welding operations, the nearest spot in the solder line grounding, or isolation sensor insulation, so as not to damage the sensor.

Vibrating Feeder Technical Data