Pressure Vessels Full-time JobBanking & Financial Services New Territories 11 views
List of mining equipment: Mining is the extraction of valuable minerals or other geological materials from the land of a deposit. For this extraction to be done efficiently, we need machinery specialized in mining. These Mining Equipment have reinforced chassis and more powerful engines so that they can transport all the material.
Some mining machines are used to transport mining or workers (miners), you can also use machinery to introduce explosives with a longitudinal arm making the explosion more effective.
Other types of mining machinery are used to introduce the concrete into the wall of the rock making it more consistent and safer. Within the mining operations, the activity of management and management of machinery for minerals, affects the cost of operation in general, mainly due to the large amount and variability of resources involved in it.
A large part of the technological innovations points to this activity, both because of its importance in the cost of operation and in the number of stages involved. The management in the handling of minerals, or materials in general, seeks to optimize resources to achieve a simple but complex objective that is the transfer of material from one point to another fulfilling certain quality and quantity requirements in a defined period of time and at minimum cost.
During all the active Lime Production Line, the rotary kiln production process is the most advanced one. Our production process adopt the rotary kiln with the vertical preheater and vertical cooler for the limestone calcination to achieve the production requirements of energy saving, environmental protection, the high activity. We can provide technological solutions and complete production equipment for 50-800TPD quicklime (active lime) production line.
Rotary Kiln System works by processing material in a rotating drum at high temperatures for a specified retention time to cause a physical change or chemical reaction in the material being processed. The kiln is set at a slight slope to assist in moving material through the drum.
Direct-fired kilns utilize direct contact between the material and process gas to efficiently process the material. Combustion can occur in a combustion chamber to avoid direct flame radiation, or the flame can be directed down the length of the kiln.
Direct-fired kilns can be of the co-current or counter-current configuration, referring to the direction the combustion gases flow in relation to the material.
Indirect-fired kilns are used for various processing applications, such as when processing must occur in an inert environment, when working with finely divided solids, or when the processing environment must be tightly controlled.
An indirect-fired kiln is enclosed in a furnace, which is then externally heated. This avoids contact between the combustion gases and the material being processed.
Companies planning to invest in pelletizing equipment can select the right system by making a thorough inventory of their operational and application needs, in addition to the basic consideration of cost. Three major types of pelletizing system are available, each with a distinctly different range of strengths and weaknesses. With the growth of the plastics industry and the continual emergence of new requirements in the marketplace, even a company that has long used a particular system may need to consider an alternative when the time comes to add capacity.
Oxidized Pellet Plants are essential components in resin manufacture, compounding, masterbatch production, and recycling. A high-volume system that is appropriate for a polymerization plant will be very different from one that suits the needs of a toll compounder. One that can produce micropellets for use in masterbatch may not be the best choice for processing post-consumer regrind. What follows is an evaluation of each type.
As with other Grate-Kiln Pelletizing Systems, the cooling water in the UWP is supplied by a process-water unit, which tempers the water—that is, mixes hot and cold water to ensure a constant temperature—and filters out dust and fines. Water temperature must be carefully controlled and adjusted according to the properties of the polymer being pelletized. Failure to do so can lead to malformed pellets or process disruptions.
In UWPs, all cooling water is transported to and from the cutting chamber by means of pipes, making unnecessary water troughs or water slides found in other pelletizing systems. As a result, the centrifugal pellet dryer and water-treatment equipment can be installed at some distance from the pelletizer—in another room, for example, or on another floor.
What Are Pressure Vessels?
Pressure Vessels are enclosed containers used to hold liquids, vapors, and gases at a pressure significantly higher or lower than the ambient pressure. They are widely used in various industries such as petrochemical, oil and gas, chemical, and food processing industries. Equipment such as reactors, flash drums, separators, and heat exchangers are examples of pressure vessels.
Each pressure vessel must be operated within its design temperature and pressure, which is the pressure vessel‘s safety limits. The design, construction, and testing of pressure vessels are extensively carried out by knowledgeable personnel and are governed by regulations because the accidental release and leakage of its contents is a danger to its surrounding environment. Some of the well-known standards are the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME BPVC) Section VIII, and the American Petroleum Industry (API) 510 Pressure Vessel Inspection Code.