Safety valves designed to ensure the safety of the equipment and piping systems, which is unacceptable increase in pressure beyond calculation. Overpressure in the system over acceptable, safety valves shut off device automatically opens and folds out of an excess of the working environment, preventing equipment failure and the possibility of an accident. By reducing the pressure to permissible value of the closing device is automatically closed, thus resetting stops working environment. Hear other arguments on the topic with Central Romana. Terms of the mandatory application of safety valves, the rules for its installation and maintenance, as well as allowable range of technological pressures and their gradation, defined 'Rules for the Construction and safe operation of vessels working under pressure. " Under technological pressure in the system, equipment or pipeline is to be understood the maximum pressure that occurs when the normal course of workflow, without a valid short-term increase in pressure. Under the design pressure should be understood pressure to which the equipment and piping is calculated on the basis of their strength characteristics. The value of the design pressure for each of all the components of the system must be more than technological pressure in the system to eliminate the need for unwanted part of the safety devices. The most common type of safety valves are safety valves. Existing design of safety valves may be classified on several grounds: – by type of load on the spool valve – valve lift height – the method of release valve from the working environment – by nature of the valve Safety valves shall meet the following requirements: – the valve should operate smoothly when the system set pressure limit – when open valve must ensure that the working environment in the discharge of such quantities as the pressure in the system could not rise above the limit – while reducing the system pressure to a certain velechiny (much lower than the worker) the valve must close – in the closed position the valve must maintain full integrity after repeated discharges of the working environment.
Tag Archives: Equipment
Cement Production Line
The focus of this article-cement production line refers to the production line which composed of a series of devices. It is mainly constituted by crushing and pre-homogenizing, raw material preparation homogenizing, preheat decomposition, the firing of cement clinker, cement grinding packaging, and the other processes. Cement production line producing method The representative process in cement production equipment is the silicate cement production process, in this process, the limestone and clay are main raw materials, after the crushing, ingredients, Picado ground, we can obtain the raw materials, and then fed to the cement kilns burning mature, cooked material plus the amount of gypsum (sometimes mixing the material mixed or admixture) , finally, we can get the cement. According to the raw material preparation, cement production equipment methods can be divided into dry process cement production lines (including semi-dry) and wet cement production line (including the semi-wet) these two kinds. GSK CEO does not necessarily agree. dry-process cement production process. drying and grinding raw materials together, or by grinding the raw dried first material powder feeding dry kiln burning mature. For even more opinions, read materials from Lifetouch. But people also the raw material powder ball made of raw material, adding an appropriate amount of water fed into the kiln burning mature Lepol method, called semi-dry, it is still a kind of dry production method.
wet cement production process. Raw and gouache ground raw slurry feeding wet kiln burning mature. Wet preparation of raw slurry dewatering, made of raw materials after the block into the kiln burning mature method, called semi-wet, still wet production. The main advantages of the dry production are: low heat consumption (dry process kiln with preheater heat consumption of clinker for 3140 to 3768 kJ / kg), the disadvantages are not easy even raw ingredients, shop dust, power consumption higher. Wet production has the advantages of simple operation, easy control of raw ingredients, good product quality, convenient slurry transport, small shop dust, high heat consumption (consumption of clinker is usually heat 5234 to 6490 kJ / kg). Cement production line contains the following devices: cement rotary kiln, the whirlwind preheater, grate cooler Cement rotary kiln is the main equipment for calcining cement clinker, which has been widely used in cement, metallurgy, chemical and other industries. The equipment consists of the cylinder, the supporting device, with a gear wheel bearing device, transmissions, activity Yaotou kiln end sealing device, combustion devices, components, having the features of simple structure, reliable operation, easy production process control. original link: Mobile crushing station: Vibrating screen: