Method for rapidly adjusting corona wire of electrical tar precipitator

Abstract

The invention provides a method for quickly adjusting corona wires of an electrical tar precipitator, which is characterized by comprising the following steps of: (1) dividing four corners of an upper suspension into four parts, selecting a corona wire at the middle position of each part, taking down an adjuster for fixing a heavy hammer of the selected corona wire in a lower suspension, and placing the adjustor in the lower suspension; the distances between the selected corona wire and six surfaces in the honeycomb cylinder are checked and adjusted; (2) adjusting the upper suspension to a horizontal state; (3) adjusting the lower suspension to a horizontal state; and (4) adjusting the other corona wires, so that the distances between each corona wire and the six honeycomb surfaces in the honeycomb where the corona wire is located are all greater than 110 mm. According to the invention, part of the corona wires are firstly adjusted, the adjusted corona wires are taken as reference, the lower suspension pull rod, the upper suspension and the lower suspension are respectively adjusted and fixed to proper positions, and then the rest corona wires are adjusted, so that the adjusted corona wires are not influenced during adjustment, and the adjustment efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plate rolling and relates to a method for quickly adjusting a corona wire of an electric tar precipitator. Background Art

[0002] For the electrostatic tar precipitator, the operation of the corona wire plays a vital role in the tar removal efficiency of the entire electrostatic tar precipitator. The coke oven gas enters the electrostatic tar precipitator from the bottom. Under the condition of negative pressure, the stability of the corona wire is tested. If the corona wire is offset, when the gas passes through, the corona wire will be too close to one side of the honeycomb wall and will discharge to the honeycomb wall. On the one hand, this will cause the corona wire to break, resulting in a short circuit between the positive and negative poles. On the other hand, it will cause the overall suspension to shake, causing multiple discharges from one point, thereby affecting the start-up position of the electrostatic tar precipitator and reducing efficiency.

[0003] Traditionally, each electric tar precipitator has 350 corona wires. The existing maintenance method is to inspect and adjust each corona wire individually. During this process, it is necessary to adjust the suspension and pull rod back and forth to find the appropriate distance. In particular, during the adjustment process, some of the corona wires that have already been adjusted will still offset, requiring repeated adjustments, which is time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a method for quickly adjusting the corona wire of an electric tar precipitator in view of the problem that the adjustment of the corona wire in the background technology is time-consuming and labor-intensive.

[0005] To this end, the present invention adopts the following technical solutions: A method for quickly adjusting a corona wire of an electric tar collector comprises the following steps: (1) Divide the four corners of the upper suspension into four parts, select a corona wire in the middle of each part, remove the adjuster of the selected corona wire fixing weight in the lower suspension, check the distance between the selected corona wire and the six surfaces of the honeycomb tube, and adjust it; (2) Adjust the upper suspension to a horizontal state; (3) Adjust the lower suspension to a horizontal state; (4) Adjust the remaining corona wires so that the distance between each corona wire and the six honeycomb surfaces in the honeycomb is greater than 110 mm.

[0006] Furthermore, in the step (2), the upper suspension is 270-320 mm away from the top of the honeycomb tube.

[0007] Furthermore, in step (3), all lower suspension tie rods are first adjusted to a vertical state, and then the lower suspension is adjusted to a horizontal state.

[0008] Furthermore, the distance between the lower suspension tie rod and the six surfaces of the honeycomb tube is greater than 110 mm.

[0009] The beneficial effects of the present invention are: First, adjust some corona wires and use the adjusted corona wires as a reference. After adjusting and fixing the lower suspension tie rod, upper suspension and lower suspension to the appropriate positions, adjust the remaining corona wires. The adjustment will not affect the adjusted corona wires, which greatly improves the adjustment efficiency and achieves good results. DETAILED DESCRIPTION

[0010] The present invention is described in detail below in conjunction with embodiments: A method for quickly adjusting a corona wire of an electric tar collector comprises the following steps: (1) Divide the four corners of the upper suspension into four parts, select a corona wire in the middle of each part, remove the selected regulator in the lower suspension (because the regulator is located on the lower suspension, it plays the role of fixing the weight, and the weight will move with the shaking of the suspension), so that the selected corona wire is in a state of no external force, not affected by the lower suspension, and naturally droops vertically under the action of gravity. At this time, the corona wire can reflect the deployment of other corona wires in the area. If the corona wire is centered, the corona wires in the area are centered. On the contrary, if the corona wire is not centered, the overall corona wires in the area have shifted and need to be adjusted. This inspection method improves the judgment efficiency compared to the previous inspection of each corona wire. Then check the distance between the selected corona wire and the six faces of the honeycomb tube, and adjust it so that the selected corona wire is located in the middle of the honeycomb tube and the distance from each face of the honeycomb tube is greater than 110mm.

[0011] (2) Adjust the upper suspension to a horizontal state. Specifically, when adjusting, first measure the distance between the four corners of the upper suspension and the top of the honeycomb tube. If they are different, it is necessary to adjust the suspension where the displacement occurs. First, remove the pull rod screw at the suspension, turn the spare screw to adjust the suspension to a horizontal state, and repeat this operation at the other three upper suspension corners until the upper suspension is completely horizontal. After the adjustment is completed, the upper suspension is 270-320 mm away from the top of the honeycomb tube. In this embodiment, the upper suspension is 300 mm away from the top of the honeycomb tube.

[0012] (3) Adjust the lower suspension to a horizontal state. Specifically, first adjust all the lower suspension tie rods to a vertical state, and then check the distance between the lower suspension and the lower end of the honeycomb tube. If they are different, it is necessary to adjust the suspension where the displacement occurs. First, remove the tie rod screws at the suspension, and turn the spare nut screw to adjust the lower suspension to a horizontal state. Repeat this operation at the other three lower suspension corners until the lower suspension is completely horizontal, and make the distance between the lower suspension tie rod and the six surfaces of the honeycomb tube greater than 110 mm. In this embodiment, the lower suspension is 300 mm away from the lower end of the honeycomb tube.

[0013] (4) When the upper and lower suspensions are horizontal and located at the appropriate positions, the remaining corona wires can be adjusted. After the adjustment is completed, the distance between each corona wire and the six honeycomb surfaces in the honeycomb is greater than 110 mm. Since the positions of the upper and lower suspensions are determined, when adjusting other corona wires, there will be no situation in which the previously adjusted corona wires are affected and need to be reworked during the subsequent adjustment of the corona wires, which greatly improves efficiency and the adjustment effect.

[0014] The method avoids the current situation of blindly adjusting the corona wire of the electrostatic tar precipitator, which is unable to quickly determine the fault point and is time-consuming and labor-intensive. The start-up gear of the electrostatic tar precipitator adjusted according to the method is all at gear 10 (the highest gear 10), the secondary voltage is 58KV, and the secondary current is 2273mA, achieving the best effect of electrostatic tar capture, saving time and labor. The method of the present invention is simple to operate and has high reliability.

Claims

1. A method for quickly adjusting the corona wire of an electric tar collector, characterized in that: The following steps are involved: (1) Divide the four corners of the upper suspension into four parts, select a corona wire in the middle of each part, remove the adjuster of the selected corona wire fixing weight in the lower suspension, check the distance between the selected corona wire and the six surfaces of the honeycomb tube, and adjust it; (2) Adjust the upper suspension to a horizontal state; (3) Adjust the lower suspension to a horizontal state; (4) Adjust the remaining corona wires so that the distance between each corona wire and the six honeycomb surfaces in the honeycomb is greater than 110 mm.

2. A method for quickly adjusting the corona wire of an electric tar precipitator according to claim 1, characterized in that: In the step (2), the upper suspension is 270-320 mm away from the top of the honeycomb tube.

3. The method for quickly adjusting the corona wire of an electric tar precipitator according to claim 1, characterized in that: In the step (3), all lower suspension tie rods are first adjusted to a vertical state, and then the lower suspension is adjusted to a horizontal state.

4. A method for quickly adjusting the corona wire of an electric tar precipitator according to claim 2, characterized in that: The distance between the lower suspension tie rod and the six surfaces of the honeycomb tube is greater than 110 mm.