Case: Cost calculation for green maintenance of mechanical equipment

Governance and fines for a repair due to increased pollution:

(1) C = K × W general calculation formula:

In the formula:

C is the cost of treatment and fines for a certain repair due to pollution;

W does not consider the maintenance cost of pollution for a certain repair;

K is the pollution cost factor, usually taking 011% to 5%; for example, the reference data obtained by a repair shop based on the actual measurement is: light pollution is 014%, medium pollution is 1%, heavy pollution is 2%, and serious pollution is 3%.

The average cost of treatment and fines for each repair due to increased pollution is:

In the formula:

Ck is the average cost of treatment and fines for each repair due to increased pollution;

Fi is the maintenance frequency of the i-th item;

Ci for the maintenance of the i-th item due to increased pollution and fines;

n is the total number of repairs.

When a certain factory repairs a certain type of equipment, it plans to adopt a series of new technologies including nanotechnology. It is necessary to increase the cost of new equipment by 600,000 yuan, but it can reduce pollution. The economic calculation is as follows. (K0 in Table 1 is the pollution index after adopting the new process)

Calculate the average cost CK of treatment and fines due to increased pollution before and after the new process, and enter the known data by formula (2). It is found that (1) before the adoption of the new process is 0.736 million yuan, and after adopting the new process, it is 0.08. Ten thousand yuan.

(2) The average cost of reducing pollution control and fines after adopting new technology is: 0.736-0.08=0.56 million yuan decision analysis

According to the mission situation, the plant can repair 54 sets of equipment per year, which can reduce the pollution control and fines costs by 354,240 yuan per year. The input cost can be recovered in less than two years, so it is decided to adopt.

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