how to make a carbon paste electrode using metal powder

how to make a carbon paste electrode using metal powder

Electrode paste is the raw material for the manufacture of calcium carbide furnace electrodes. To avoid various electrode accidents, the quality of the electrode paste itself should be good. In addition, the management, control and operation of calcium carbide furnace electrodes are also crucial, and the quality of electrode paste sintering is good or bad. , The occurrence of various electrode accidents is directly related to the management, control and operation of the electrodes.

(1) Basic tasks of the post

According to the height of the paste column, the length of the electrode and the expected electrode consumption, it is responsible for adding qualified electrode paste to the electrode cylinder and keeping the height of the electrode paste column in line with the requirements of process control indicators. According to the roasting and power outage, responsible for the control of the electrode fan, dampers and heaters: responsible for the operation, maintenance and site cleaning of the equipment.

(2) Equipment maintenance

① Responsible for the cleaning and sanitation of the equipment and site.

②Start the electric hoist after handover and check whether it is operating normally. To

③ Check whether the wire rope is in good condition when handing over shifts, and replace with a new wire rope when 1/6 strands of the wire rope are broken.

④ Refuel the wire rope on the 1st and 15th of each month.

(3) Safety precautions

①Strictly follow the requirements and put on labor protection supplies.

②When lifting the electrode paste, the electrode paste shall not be higher than the bucket, close the lifting door and hang a warning sign of “Watch out for heavy objects falling”.

③When lifting the electrode paste, tie the hook and the electrode paste bag firmly to prevent it from falling. Prevent and check the paste from falling into the handle parts or other rotating equipment. To

④ Check whether the leather case is damaged, falling off, and whether it extends into the electrode cylinder before putting the paste.

⑤If the carbon monoxide concentration value does not exceed the standard, the height of the paste column can be measured. If the carbon monoxide concentration value exceeds the standard, evacuate to a safe place immediately. If you feel uncomfortable breathing, you should go to a ventilating place immediately. If it is severe, you should immediately send to a doctor.

⑥Strictly control the height of the paste column within the range of process indicators. Each shift should measure the height of the paste column more than three times.

⑦When measuring the height of the paste column, it is forbidden to touch the two-phase electrodes at the same time. When pressing and discharging the electrode, do not add electrode paste and measure the height of the electrode paste column. When measuring the height of the electrode paste column, it is strictly forbidden to stand on the rotating part of the ring machine to prevent injury. To

⑧ It is found that the limit switch of the electric hoist is out of order, and the use of the electric hoist should be prohibited. It can be used only after the limit switch is repaired.

(4) Management of electrode paste

①The electrode paste is stacked neatly in batches. The stacking site must be a clean cement floor. It is strictly forbidden to mix with external soil and impurities. Cover it with a tarp. It is strictly forbidden to stack it in the open air. Rinse surface dust and stains with clean water regularly.

②Before the electrode paste is used, it is necessary to check whether the various quality indicators in the test sheet are qualified, and adjust the management of the electrode according to the indicators (mainly looking at the indicators of volatile content and ash content).

③The particle size of the electrode paste must be checked before it is loaded into the electrode cylinder to prevent the particle size from being too large or too small. If the particle size is too large, it is easy to be overhead. If the particle size is too small, it is easy to spray. Both overhead and spraying are likely to cause electrode accidents. To

④Implement the use system of electrode paste, and carry out the operation of installing electrode paste in strict accordance with the safety operating regulations.