Industrial Filters Design

In this paper, the filter design process involved in a few of the key issues, such as the main parameters determined by the structure, & the filter design ought to pay attention to a few of the difficulties.

the design of a Industrial Filters core, which chiefly describes the design method involved a lot of key issues. Filter media for the heavy hydrocarbon condensate & natural gas, the working pressure of 4.4MPa, working temperature is 40 , refer to the user's needs, ultimately decide the design pressure of 6.4MPa, corrosion allowance of 3mm. Working principle is as when the medium from the way in, after a sure buffer, massive particles & liquid free of impurities sinking, rising air purified through the Cartridge Filters discharged from the exit. Encountered in the design method, several issues, the following discussion of the main solution to the problem.

Check opening reinforcement issue Over the import  and export by five huge pass when checking reinforcement pad, and over reinforcement, whether in small multi-thick reinforcement pad can not be adopted. According to JB/T4736- 2002 "Reinforcement" in desk 1, "Reinforcement size series", the reinforcement ring and the minimum thickness of 30mm and GB150 in shell thickness of reinforcement pad on the restrictive requirements are: " reinforcement pad thickness less than or equal to the name of the thickness of the shell 1.5 38mm ". Reinforcement ought to not be used otherwise, but ought to be used; overall reinforcement or reinforcing the general forging. According to the requirements of over these openings are reinforced with thick wall, and to make definite that thinning thick over the length L 3 part of the thickness difference, to take over and the shell with full penetration, took over the outside wall of the shell connected with r rounding, to keep away from sharp corners.

So that they can successfully calculated by reinforcement.

The top of the Industrial Filters settings tool flange, to meet the requirements of filter often replace them because of cylinder diameter 800mm, according to JB/T4700-2000 "pressure vessel flanges" requirements designed for the actual computing devices flange, & in the light HG20592-1997 "steel pipe flanges, gaskets, fasteners" design equipment & flange covers, flange covers the weight of 887Kg, by the usual manual rotation is difficult, after several studies, in reference Manhole transfer arm based on the realities, the transfer arm with bearings, simple to turn, the result was satisfactory.

Internal fastening the filter on the tank bolts, due to internal corrosion allowance 3mm, if the use of carbon steel, corrosion allowance is difficult to think about the choice, so pick the stainless steel. With the walkway support brackets, loose screws type, simple dis assembly, which will help ship.

Flammable substances as natural gas medium, does not allow micro-leakage, air tightness testing of their conduct, inspection of tiny penetrating vessel defects, to jointly guarantee the safety of equipment.

Industrial Products

Former President of Lahore Chamber of Commerce and Industry (LCCI) Mian Anjum Nisar said the industry was crippled by 67 percent increase in electricity tariff, 18 percent mark-up rates and the energy crisis. “The industry in Punjab was more affected last year because the government discriminated against it by not providing gas to it. This resulted in higher production cost for us than for units in other provinces. This makes Punjab industry uncompetitive within the country. Up to 1,500 industrial units were closed only because of this.”

Once an industry shuts down, its financial problems increase because it has to pay financial charges without any revenues, he said. “We faced gas load shedding for 125 days while other provinces got smooth gas supply round the year,” Nisar said.

Asmat Pervaiz, a former chairman of Pakistan Steel Re-Rolling Mills Association, said the industry’s production stood at 0.7 million metric tons in 2010, which was only 20 percent of its capacity. “In winter, almost 100 percent industry was closed. It hadn’t run at full capacity in summer either, mainly because of non-availability of gas and electricity.”

The decline in production was not reflected in prices because of economic slowdown in the country, which reduced construction activity, Pervaiz said. “Over 200,000 people are employed in Punjab steel melting industry who started crying when we asked them to go on leave. We are unable to cope with this situation as almost all the industry is running in losses.”

Textile sector and auto parts industry, however, registered growth during the year.

Syed Nabeel Hashmi, vice chairman of Pakistan Association of Automotive Parts and Accessories Manufacturers (PAPAM), said motorcycle production increased to 1.7 million units from 1.4 million units. “Car sector registered eight percent growth which is encouraging in Pakistan’s current economic situation. Tractor production also increased following growth in rural income,” he said.

Hashmi said that some vendors faced problems in recovering dues from Chinese manufacturers.

Textile export grew by 25 percent and profit before tax of the sector registered an increase of 20 to 22 percent.

Chairman of All Pakistan Textile Mills Association (APTMA) Gohar Ijaz said increased prices of raw cotton shifted over Rs200 billion to the rural economy and benefited the farmers. But, he said, the industry faced various challenges including energy shortage and high mark-up rates. “New investment in the textile industry has stopped,” he remarked. He further said EU concession to the Pakistani products was a major breakthrough in 2010 but the government failed to exploit this because it ignored the real stakeholders.