grate cooler pdf

28/11/  · Clinker Cooler. The Air-Quenching shaking grate Clinker Cooler was developed more than 20 years ago as an improved heat recuperating cooler for use with rotary kilns. It was designed to air quench and cool large quantities of hot clinker rapidly, and to recover and return to the kiln a major portion of the heat from the clinker.

The grate is driven by cylinders placed on either side of the cooler. The hydraulic drives consist of axial piston pumps with electro hydraulic servo adjustment of the oil flow to the cylinders which have built in linear transducers. The system is controlled by a PLC .The pump units have built flow and its direction.

3.1 Grate Cooler. 23. 3.2. Cooler recuperation efficiency. 23. 4. RAW MEAL & FUELS. 4.1 Solid fuel heat value. 24. 4.2 GCV & NCV of various fuels.

flow heat exchanger like grate coolers and walking-floor coolers. All modern coolers are Cross-flow heat exchangers. Cooling media is air.

Grate cooler. Production Capacity: 600~10000 t/d. Heat recovery rate: ≥72%. Application: cement, silicate products, new building materials, etc. . The grate cooler is a

20/02/  · The grate drive is located outside the cooler housing, protected from contamination by clinker dust and with improved accessibility for maintenance. Depending on the size of the cooler either a single drive or a synchronized twin drive is installed. IKN grate drives are available as hydraulic or electro-mechanical drive system (DLD-Dynamic

01/13/22 12. fFixed Inlet Grate. Objective of Fixed inlet grate is to create a. homogeneous clinker bed of uniform. resistance against the passage of air. 5 to 6 Rows of Fixed grates (3 meter) are

complete grate, the net wear rates are respectively 2.59 and 0.67. Xcc® grates are thus 3.85 times better in average than the ones in standard alloys. air channels in Magotteaux patented Bar Grate Comparison between standard alloy and Xcc® in a 3,100mtpd cooler. RGTHQTCVGF left: Xcc® grate. right: competition grate both after 26 months

the air into the grate cooler to reduce the temperature of the hot clinker leaving the kiln 1 . All these airflows have to be adjusted and controlled as.

The grate cooler is the main equipment in calcining system of the cement plant. Its main function is to cool and transport the cement clinker. It also provides hot air for rotary kiln and decomposing furnace, and it is the main equipment for heat recovery in calcining system. Grate cooler of CHAENG is new energy-saving clinker cooling equipment

The essential characteristic of a grate cooler is a layer of clinker spread on a more-or-less horizontal perforated grate, through which cold air is blown. The grate is made of steel, and the cold air keeps it sufficiently cool to avoid melting or burning.

The grate plate is the main sector of the grate cooler, and its structure can be modified to receive electric power while cooling the clinker.

Grate cooler consists of upper case, lower case, lower frame, grate bed, hydraulic transmission device, grate bed support device, clinker crusher, automatic lubrication device, and cooling fan. Of these devices, grate bed is the most important part, mainly composed of overlapping rows of static and movable perforated grate plates.

In modern cement plants, the clinker cooler is the key to high recuperation effi ciency and low clinker outlet temperatures at the lowest possible energy consumption. + Compact design + Low power consumption + Effi cient clinker cooling The Pendulum Cooler® is designed as single grate with a roll crusher at the end or as double grate with

The invention relates to a grate cooler, in which the drive device is surrounded by a drive housing, the inner space of which is sealed in an airtight manner in relation to the atmosphere, but on the other hand has a pressure-equalisation connection to the inner space of the cooler housing. Such a grate cooler is characterised by considerably reduced expenditure for sealing

The concept of the exergy analysis is applied to a grate cooler of a cement production facility. The cooling of the clinker is.

A grate cooler can be regarded as a simple heat exchanger through which the clinker passes across or counter to the cooling air flow and a direct heat transfer takes place between the hot clinker and the cold cooling air. The desired maximum recuperation of the heat from the clinker cooler for use in the

The cooler efficiency was found to be. (75.53%) at this stage of the clinker production process. This study revealed that the grate cooler 

The grate cooler heat radiation was measured using infrared thermometer (561-566 nanometer wavelength). This compared the surface temperature to the surface area and values obtained were tabulated on Table 3.3. 3.2 Calculation Basis for Mass and Heat Balances. Basis for material: one (1) kg and 0℃ of clinker is usually taken as the basis. 3.2.1 Cooler Mass and

The cooler loading is defined as the amount of clinker over the grate area. 2.4.4 Cooler Efficiency The efficiency of a cooler is defined as the relationship between the recuperated heat to the kiln and the total heat transferred to the cooler as presented in equation 2.1.

The transport speed of the second grate is higher compared to that of the first one due to the smaller grate width of 6.8m. At the end of this second grate the maximum clinker temperature is at 65°C above ambient CHINESE COOLER PROJECTS With an annual cement consumption of about 1.85bnt, China is by far the world´s largest cement market.