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TTJL-70 70 kg electric heating test coke oven (bottom installation)

2021-01-31
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TTJL-70 70 kg electric heating test coke oven (bottom installation)
Detailed introduction:

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1. Equipment name

TTJL-70 70 kg electric heating test coke oven (bottom installation)

Second, the use of equipment

Conventional tamped coking experiments are conducted to determine the most cost-effective coal blending ratio scheme.

3. Process requirements

1. In order to accurately control the coal blending ratio coal blending fineness, provide stable conditions for coking, the process of crushing then matching is selected.

2. The 70 kg test coke oven project includes: 70 kg electric heating test coke oven, conventional coal blending for coking, tamping coal blending for coking, quenching, supporting coke testing equipment auxiliary facilities.

3. The process test can be conducted on conventional coal blending tamping coal blending coking experiments, the appropriate coal blending conditions can be explored according to the cold strength thermal strength indicators of the coke produced, the economy possibility of production can be inferred. To guide production provide information for the rational use of coal resources.

4. The furnace adopts silicon carbide furnace, which has good resistance to rapid cold rapid heat, small expansion coefficient, no peeling cracks in cold hot conditions, long service life. Specific indicators of furnace brick: refractoriness≥1770℃, 0.2Mpa load softening starting temperature≥1620℃, bulk density 2.50-2.80g/cm3, apparent porosity≤21%, reburning line change (1350℃*2h)≤+0.2 %, normal temperature compressive strength≥85Mpa, thermal shock stability (1100℃ water cooling)≥50 times, flexural strength (1100℃*2h)≥20 Mpa, SiC≥86%, Fe2O3≤1.2%.

5. The coking process is electric heating on both sides, coal loading coking at the bottom, with high automation easy operation.

6. The computer controls the temperature of both sides of the furnace wall, the error of the two sides of the furnace wall at constant temperature is less than 5℃, records the temperature of the coke cake center the furnace top space, with data storage printing functions.

7. The computer operating system is Win10, the computer starts the control system modifies the system parameters, dynamically displays the system operating status temperature curve.

8. The temperature control adopts the artificial intelligence adaptive adjustment algorithm, the heating constant temperature control have no overshoot undershoot.

9. The user can set the heating curve arbitrarily, the program arrangement adopts the method of temperature time arrangement, which is convenient flexible.

10. With sensor (electric couple) broken wire, reverse connection indication over-temperature alarm function.

4. Technical parameters of main equipment

1. Test coke oven

1.1 Coal loading capacity: 62-88 kg (wet basis, coal loading density 0.72 tons/m3-1.03 tons/m3)

1.2 Effective size of carbonization chamber (length×width×height): 660×420×650mm

1.3 Coal loading box size (length × width × height × thickness): 620×370×590mm×5mm

1.4 Briquette size (length × width × height): 580 × 370 × (400-500) mm, (the coal loading box is equipped with 20mm asbestos insulation along the length of the briquettes on both sides, the upper part of the briquettes is covered with 20mm along the height direction Asbestos insulation)

1.5 There are 6 silicon carbon rods on both sides of the combustion chamber for heating

1.6 Coking time: 16h-24h (control at 22h during normal test)

1.7 Flame temperature: 1050℃±10℃ (rated temperature 1350℃)

1.8 Center temperature of coke cake: ≥950℃

2. Central control system

It adopts German Siemens PLC control technology, computer controls adjusts the heating temperature, the computer controls the heating element to complete the temperature control required by the test. The temperature control has high precision, reliable convenient use, the test data can be stored, displayed printed.

2.1 Power supply: 380V, 50HZ

2.2 Rated power: 60KW

2.3 Temperature control program: You can edit the heating curve holding time by yourself.

2.4 Accuracy: 0.5 level

3. Coal loading coking system

The lifting height of the lifting system is 1.3m to protect the furnace body. Mechanical installation release of furnace, safe convenient operation

4. Quenching system

The water quenching method is adopted, the dry quenching system is optional.

5. Rotary drum for measuring mechanical strength of 1/4 coke (semi-automatic drum door, easy to operate)

5.1 Drum inner diameter: Φ1000mm±5mm, drum inner length: 250mm±5mm, drum wall thickness: 8mm

5.2 Rotation speed: 25±1 rpm, 100 rpm time is 4min±10S

5.3 Motor: 1.5kw

5.4 Working voltage: 380V±10% 

6. TTLX-1 type coke falling strength measuring device

6.1 Test box: 710mm×455mm×380mm, steel plate thickness: 3mm

6.2 Drop height: 1830mm

6.3 Drop table: 1220mm×965mm×200mm, steel plate thickness: 12mm

6.4 Motor: 1.5 kW

6.5 Working voltage: 380V±10%

7. Coke screening composition sieve (hand sieve)

7.1 The effective area of the screen is 1000mm×700mm

7.2 The sieve is formed by punching a 2mm cold-rolled plate with square holes. The sieve holes are 80mm×80mm, 60mm×60mm, 40mm×40mm, 25mm×25mm

7.3 Wooden screen frame with handle

8. Coke drum strength screen (hand screen)

8.1 Effective area of screen 1000mm×700mm

8.2 The sieve is formed by punching 2mm cold-rolled plates, round holes, 40mm×40mm, 25mm×25mm, 10mm×10mm

8.3 Wooden screen frame with handle

9.TTDG-01 Tamping Machine:

9.1 Purpose: used to adjust the density of coal entering the furnace.

9.2 Technical indicators:

Tamping density: 0.72 tons/m3-1.03 tons/m3

Tamping stroke height: 1100 mm

Tamping hammer stroke: 150 mm

Equipment dimensions: 5500 mm×2300 mm×5600 mm

Working voltage: 380V±10%

Equipment weight: 600kg

9. Selected parts materials for the main body of the equipment auxiliary facilities

The equipment main body auxiliary facilities electrical appliances, electric control, electric heating other components with reliable performance, the equipment main body auxiliary facilities materials with reliable quality, well-made reasonable structure.


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