In order to obtain high reliability and good practicability of the coal mill, must make the coal mill has a certain amount of idle time according to the operation plan, and according to the operation plan for the parts to do the necessary repair and replacement, in order to keep good state of operation, mill so for repair work, we suggest that the preventive maintenance measures should be taken, not only when absolutely necessary for repair or replacement, so as to achieve high reliability, in order to avoid unnecessary downtime.Coal mill normal maintenance mainly divided into the internal inspection and mill coal mill external inspection.

The internal inspection of coal mill is in the following:

1. roller oil change Replacement roller lubricating oil should be performed when the coal mill downtime, oil roller oil level gauge inspection, and press the ZGM95 medium-speed roller type coal pulverizer lubricating grease list (see the appendix).The oil change period is indicated in the schedule of lubricating oil, reference data, the actual operation, suggested in an oil change for the first time, the lubricating oil composition, viscosity test item by item analysis, comprehensive index for measuring oil, and choose a shorter time interval during operation to check the impurities and observe situation of oil of lubricating oil.

2. personnel before entering the mill internal inspection, must do this in the content of the accident prevention instructions. When open the doors of coal mill maintenance, should pay attention to safety, prevent the state of high temperature coal mill may cause harm to human body.

3. for coal mill (http://www.crushing-mill.com/coal-mill/) within the clean-up, check in the grinding, grinding chamber, an air chamber, separator) have installation tools, bulky objects, cloth sundry, fiber or other sundry, if any should be removed.Inspection of the rotating nozzle parts and meal guide ring between whether there is sundry, clean up the sundry, otherwise will produce noise, the coal mill is running cause unnecessary misunderstanding.

internal inspection of coal mill: http://www.crushing-mill.com/coal-mill/

15Rotating nozzle and meal guide ring (that is, the static ring) clearance inspection of the rotating nozzle with coarse powder of guide ring gap in presence of wear and tear, and clean up foreign bodies in the clearance.Check cycle: 3000 hours at a time. rotating nozzleCheck the abrasion of throat.Check cycle: 3000 hours at a time. Wear serious throat and mouth, stone coal emissions increase, change of new nozzle. meal guide ring (i.e., static ring) check meal guide ring wear.Check cycle: 3000 hours at a time.Should be replaced when worn.

What you should notice to coal mill is as following: A wind chamber Check whether coal, before each rev grind or not run over a long period of time should be no product a wind indoor coal mill, in order to prevent the coal spontaneous combustion and recovering the damaged scraper. Base sealing device (positive pressure) base sealing device (negative pressure) Check the wear condition of carbon sealing ring.Check cycle: 2000 hours at a time.Check the wear condition of tooth shape sealing ring. Check cycle: 3000 hours at a time. After sealing ring wear, resulting in a serious leakage in the wind, be replaced. Roller seal duct metal hose check the abrasion of roller seal duct metal hose.Check cycle: 2000 hours at a time. When the severe impact of the grinding roller seal to replace the metal hose.

All sealed First run within 100 hours, normal operation of the interval of 1000 hours, check the sealing situation everywhere. Such as seal leakage shall be handled in a timely manner. Bolt of coal mill (http://www.crushing-mill.com/coal-mill/), nut, washer first run before the first run of 100 hours, normal operation of the interval of 1000 hours, check Each part of the check bolt looseness, especially the speed reducer, foundation bolt, etc. Remove the bolts, nuts, maintenance will be Will only be sure whether to check surface quality and using. Gear oil, roller oil, hydraulic oil Regular inspection, testing the quality of the oil. The use of oil, replace the coal mill lubricants resin list, add oil must have a certificate of approval, its technical indicators must meet the specified requirements. Application in gas filtration precision of 6 microns filter filter or join after heating, temperature rising too fast and too high.

What you should notice to coal mill: http://www.crushing-mill.com/coal-mill/

Rotary kiln is a rotary calcining kiln (commonly known as rotary kiln), belongs to building material equipment class.Rotary kiln according to different processing materials can be divided into cement kiln, metallurgy chemical kiln and lime kiln.Red star machine series rotary kiln according to production purposes can be divided into: ceramsite rotary kiln rotary kiln, chemical industry, metallurgy, active lime rotary kiln, rotary kiln, lime rotary kiln, etc.

Hongxing Machinery, a technical rod grinder manufacturer in China, is a large joint-stock enterprise integrating R&D, production and sales. Hongxing Machinery is second to none in various rod mill manufacturers. In Gaoxin District, Hongxing Machinery is one of the biggest crushing mill producers. It provides various crushing mills and accessories. Ball mill is one of the key products produced by Hongxing Machinery. Hongxing forms strong comprehensive innovation system by virtue of years of experience accumulation and development. Experts from Hongxing Machinery remind you that product quality must be taken into consideration.

The blending ingredients for lime rotary kiln is as follows: rotary kiln kiln during the skin, the bed is usually slants thin, rotary kiln speed slow, preheating, easily burnt.So saturated with uncooked materials requirements than some taller, so make it slightly refractory, and can produce enough liquid volume, easy to hang kiln. Especially when open kiln, wood ash, fire bricks, residual leftover material in rotary kiln, plus work when drying kiln of the settlement of coal ash, the first material of low melting point, very easy to be sticky, this grain of fine uniform and our requirements, the is not consistent. Experience has shown that higher raw saturation ratio, and the appropriate rate of n, p value of ingredients, is to make up for the defects.Saturation ratio and other rate value good control on how much value in the end, the cement plant has its own empirical data, is not the same, considering the principle is: ensure that rotary kiln calcining clinker and grain of fine uniform, easy to hang kiln.

Hanging in the conditional case, the lime rotary kiln (http://www.crushing-mill.com/lime-rotary-kiln/), coal quality is good, high calorific value, stable chemical composition, this is good for calcining and hang a kiln, and batching control of rotary kiln.

blending ingredients for lime rotary kiln: http://www.crushing-mill.com/lime-rotary-kiln/