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Production process and installation precautions for single machine dust collectors

Source: Official website   |   Date:2019-11-16

Single machine dust collectorIt is an air purification equipment with small volume and high dust removal efficiency. Suitable for various independent dust production points, it has the advantages of on-site processing, flexibility and convenience, and on-site dust collection, effectively ensuring the cleanliness of the air. The basic structure consists of a centrifugal fan, a dust removal box, a dust collector, a filter bag (cylinder), and a microcomputer controller. Dust is sucked into the dust collector box by the negative pressure of the fan through the suction pipeline, and is first filtered by the filter through gravity and upward airflow. Coarse particulate dust is directly lowered to the dust collector, and is captured on the outer surface by the filter. Clean gas is filtered, decomposed, and purified by the filter element before flowing into the clean room, and then discharged from the air outlet by the fan. The entire dust removal and filtration process is the result of a comprehensive effect of gravity, inertial force, collision, electrostatic adsorption, and screening.

A standalone dust collector includes a frame, motor, fan, and electrical control box,Dust filter bagDoor, vibration motor, vibration mechanism, feeding hopper, dust receiving hopper, dust receiving door and dust filter frame. The frame includes an upper shell and a lower shell. The motor and fan are located inside the upper shell, while the dust filter bag, feeding hopper and dust receiving hopper are located inside the lower shell. The dust filter is installed between the upper shell and the lower shell. The dust filter bag is connected to the dust filter frame, and an elastic sealing gasket is provided between the frame and the dust filter frame. The vibration motor is connected to the dust filter frame through the vibration mechanism. An air inlet is set on one side of the lower shell, and an air outlet is set above the upper shell. The motor and vibration motor are respectively connected to the electric control box. This dust collector has the characteristics of compact and reasonable structure, easy and convenient operation, low noise, good dust removal effect, and can be directly applied to small places and laboratories.

In fact, a standalone dust collector is a dust removal equipment that can collect dust on-site and solve the problem. Therefore, before the standalone dust collector is officially put into use, it is necessary to do corresponding debugging and inspection work. So before the official operation, it is still necessary to conduct a comprehensive inspection again to effectively ensure the normal operation of each component. However, when put into use, in addition to regular routine inspections, it is also important to pay attention to several areas that are prone to malfunctions, such as the bag of a single dust collector. At the same time, it is necessary to keep records of the speed and changes in the operation of each single dust collector during operation.

There are many types of single machine dust collectors, so their selection calculation is particularly important. Improper selection, such as equipment being too large, can cause unnecessary flow fees; Choosing small equipment can affect production and make it difficult to meet environmental requirements. The resistance of a single dust collector consists of three parts:

(a) The resistance of the equipment body structure refers to the resistance generated by the gas from the dust collector to the outlet of the dust collector;

(b) The resistance of the filter bag refers to the resistance of the filter material when filtering dust, about 50-150Pa;

(c) The resistance of the dust layer on the surface of the filter bag is about 0-10 times that of a clean filter cloth.

If the resistance of the dust layer attached to the filter bag and its surface is called the filtration resistance, then the filtration resistance can be calculated using the following formula: in addition, the filtration resistance can also be calculated by looking up a table to obtain an approximate value of the filtration resistance by calculating the amount of dust filtered.

The production process of a single machine dust collector

a、 The dust collector adopts a steel and steel plate structure, and the material is Q235A. The box is formed by bending, and after forming, the box should be smooth and flat, without obvious unevenness. The formed box panel should be leveled, and the geometric dimensions and diagonal lines should be checked with a ruler to ensure that the external dimensions and appearance of the dust collector body are beautiful after installation. The formed box panel should be leveled, and the geometric dimensions and diagonal lines should be checked with a ruler to ensure that the external dimensions and appearance of the dust collector body are beautiful after installation.

b、 The flower board holes are made of cold stamping to ensure that the center distance error between the two holes is within± 2.0 mm. When welding reinforcement ribs after the holes in the flower board are made, the arrangement of the ribs should be reasonable. After welding, the flower board should be ensured to be flat through shaping, and the matching between the filter bag and the flower board should be reasonable. After the installation of the cloth bag, it must be tight, firm, and easy to install and remove.

Installation precautions for single machine dust collector

1. Single machine dust collector, installed near the equipment layout of the machine where dust occurs, can be equipped with metal or plastic suction pipes and hoods by the user according to the size of the air inlet on the dust collector.

2. Before the mission of the dust collector, it is necessary to inspect and repair the doors, ash discharge doors, and whether the air duct and tail system can be sealed to prevent leakage and reduce the dust suction effect.

3. The voltage of the dust collector is three-phase AC 380V. After connecting the internal wires of the dust collector to the power supply, it can be used at the end. When the initial change occurs, the stability of the air should be checked whether it can rotate forward (if it rotates in reverse, the air volume is very small, and the power wiring needs to be exchanged).

4. The cover of the dust collector electrical control box should not be opened arbitrarily during the mission. If it is necessary to adjust the cleaning time or reflect on the circuit, the power should be cut off after shutdown before stopping the mission.

5. According to the nature of the dust and the size of the capacity, it should be vibrated and cleaned regularly. Normally, it should be vibrated three to four times per shift to ensure the normal operation of the dust collector.

6. According to theoretical requirements, regularly stop removing dust. When removing dust from the dust collector, simply open the sealed ash outlet door and pull out the drawer when the mission of the fan and ash cleaning mechanism is interrupted.

7. In order to ensure that the dust removal equipment layout is in the desired shape, it is advisable to keep it as close as possible to the source of dust, typically ranging from 1.5 to 2.0 meters, and keep the tail pipe as short as possible. Additionally, it is important to reduce the number of bends to prevent resistance damage.

8. The vacuum hood is a key accessory that ensures the shape of the dust collector unit. The user should manufacture the dream vacuum hood according to the principles of ventilation, proximity, smoothness, sealing, and planning based on the external dimensions of the processed parts and the nature of the dust

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