Electrostatic decoking

1. Concentric circle electric tar trap. It consists of several steel plate cylinders with different diameters, with the same vertical axis as the center, and they are stacked together at the same distance to form a sedimentation pole. Due to the mutual repulsion between corona poles. This will cause small vacancies in the electric field, that is, field strength holes. It is easy to cause short-circuit loss of gas in the cave and reduce the coke-catching effect. At the same time, the manufacturing precision of the concentric electric tar trap is very strict, and the installation and debugging are extremely strict. It is easy to change the concentricity, horizontality and verticality during manufacturing, installation and transportation, which will cause problems between the cathode and the anode or other parts. The component will produce discharge phenomenon and it will be difficult to reach the required voltage, which will directly affect the coke capture efficiency of tar and easily cause breakdown and damage of the electric porcelain bottle. Since the voltage change value of field strength is 400V/mm, even if there is a 1mm deviation between the cathode and anode, the field strength voltage change value can be as high as 400V. The concentric electric tar trap has the characteristics of large flow area, low gas flow rate and low steel consumption. 2. Tubular electric tar trap. Since the steel pipe and the corona wire alone form an electric field, its field strength and voltage depend on the radius of the steel pipe, and its value is 400R. Since the tubular electric tar collector forms an equal-pole spacing electric field in each tube section, and there are vacancies between the tubes, these holes are blocked by the tube plate blind area, which reduces the utilization of the effective space in the cylinder and reduces the cross-sectional area of ​​the purification channel. This type of electric tar trap consumes a lot of steel, but it has the advantages of easy manufacturing, equal pole spacing electric field, easy availability of materials, and convenient installation and debugging. Widely used in large and medium-sized gas purification plants. 3. Peak-type electric tar trap. The honeycomb type has the same structure as the tubular type, except that the channel cross section is changed from circular to regular hexagonal. Two adjacent regular hexagons share one side, that is, the six sides of the regular hexagon in the middle are shared by the six regular hexagons surrounding it. Honeycomb panels made of 2-3mm steel plates can meet the requirements of process and mechanical strength. The honeycomb electric tar collector has the advantages of compact and reasonable structure, no electric field holes, high effective space utilization, light weight, less steel consumption and good coke capture characteristics. However, it has the disadvantages of difficulty in manufacturing and easy errors during transportation and installation. With the improvement of equipment manufacturing technology, the advantages of honeycomb electric tar collectors will become more and more important and will gradually replace concentric and tubular electric tar collectors.

Which manufacturers do it? Can you recommend something? urgently needed