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| TUNNEL KILN FOR FIRING MECHANISED RED BRICKS | |
| Description | |
| Tunnel Kiln with Flat Ceiling | |
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The tunnel kiln to fire 400MT bricks per Day of 24 hrs on 350 working days and For firing with burning temperature up to 11000C max. |
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We have given special attention to the Air flow, the insulation and the tightness of the joints to avoid corrosion on the Metal pieces within the kiln. |
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| Information about the kiln | |
| Burning Temperature | : Up to 11000C max. |
| Burning cycle | : 48 hrs. within kiln. |
| Dimension of the kiln | |
| Length of the tunnel kiln channel | : 118M |
| Width of the burning channel | : 7.2M |
| Height of burning channel | : 1.91M |
| Setting height | : 1.71M = 14 courses. |
| Production : | |
| Brick Size | : 250mm x 125mm x 70mm. |
| No. of bricks per pack | : 504 P c. |
| No. of packs per trolley | : 18 Nos. |
| No. of Bricks per trolley | : 9072 Pc. |
| No. of cars coming out per day | : 13 Nos. |
| Production per day | : 1,17,936 Pc. |
| Fuel consumption | |
| Tunnel kiln : | |
| Heat consumption | : 450 Kcal/kg of fired brick ( gross). |
| Heat recovery from kiln | |
| Approx | : 25 to 30 % |
| Equipment for kiln | |
| 90 MT Structural steel for kiln anchorage | |
| Refractory Material for kiln masonry. | |
| Preheating & cooling section, and firing Section temperature: 11000C. | |
| Refractory material for kiln walls: Consisting of | |
| 250 MT Refractory bricks, different shapes | |
| 10 MT Refractory pipes | |
| 25 MT Fire clay mortar | |
| 100 MT Shaped refractory bricks of different heat duty. | |
| 10 MT insulation mortar | |
| 65 MT Insulating bricks, standard & shape | |
| 35 MT Ceramic fibre. | |
| 400 kg AISI 304 holding anchor. | |
| Kiln Equipment | |
| 1 set of small material, feeding holes, inspection holes, filling holes for sand, measuring holes feeding holes, with lids. | |
| 1 vertical gate for drive - in - fully automatic, rise and fall type. | |
| 1 vertical door for the flow of the flue gas fully automatic rise and fall type. | |
| 400Kg. wall fastners for connection of burning channel walls with anchorage. | |
| AISI 310 & AISI 304 materials. | |
| 1Exit gate fan, capacity 15 Kw | |
| 1Complete set of sand chute. | |
| 460 Rail Fastners. | |
| Installation for air fuel gas flow Of the tunnel kiln. | |
| 1Flue gas fan with connecting tubes, 37 Kw. | |
| 1Hot air fan with connecting ducts 12Kw. | |
| 1 steel chimney stack | |
| Air ducting system with insulating | |
| And covering of sheet metal. | |
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1.warm air duct, for ventilation of kiln, ceiling Insulation of hot air duct, approx thickness 50 mm with sheet metal cladding,Flue gas ducting ,Insulation of flue gas ducting, excl. fan insulation. |
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| Building material for tunnel kiln ( to be provided by client) : | |
| 1,00,000 Standard bricks | |
| 28mt mortar | |
| 270m3 Sand | |
| Civil works & installations | |
| For the complete erection of the tunnel kiln from Ready foundation (with erection of theanchorage) And installation of all armatures. | |
| Foundation of tunnel kiln | |
| Foundation for one tunnel kiln complete including Delivery, pouring, shuttering reinforcement to be done by client. | |
| Gas firing equipment | |
| To fire natural gas with a calorific Value of 9800 Kcal/kg. | |
| Our supply starts after the gas Meter in the main supply pipe near the kiln. | |
| 6 firing groups, for every firing groups is installed : | |
| 1 air fan with 11 Kw motor | |
| 20 Burner devices. | |
| 20 Gas flow control orifice valves. | |
| 1 Air distributor | |
| 1 Air control valve main pipe. | |
| 20 air control valves at burners. | |
| 20 air tubes. | |
| 1 pressure control valve | |
| 1 Complete safety and control device. | |
| Firing group Complete with : | |
| Pressure regulating valves, by pass Valves, solenoid valves etc. | |
| computerised kiln control | |
| Microprocessor control unit including Color graphic monitor, keyboard, printer system Table and software. | |
| 1 control and switch panel for tunnel kiln. | |
| Measuring and control units, thermocouples and compensating cable, signal transducers, temperature parameter control instruments. | |
| Installation material & cables. | |
| Rails and sleepers : | |
| 2 Rail tracks, one inside the kiln and one Outside, duly installed with sleepers | |
| Tunnel Kiln Cars | |
| 28 Cars inside the tunnel. | |
| 14 Cars for loading and unloading | |
| 2Cars for repairing | |
| Total no. of cars 44 Nos. | |
| 44Tunnel kiln cars in welded steel Structure with labyrinth seals and sheet metal covers | |
| 176 Wheel sets duly finished With bearings and covers | |
| 135 M Sealing rope | |
| 44 sets of refractory shapes, insulation materials for kiln cars. | |
| Transfer Cars : | |
| 2 transfer cars for cross movement of kiln cars. | |
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Transfer cars are self driven by hydraulic Motors and the trolley movements are activated by the hydraulic cylinders mounted on the transfer cars. All kiln car and transfer car transport shall be fully automatic. |
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| Plat forms ladders : | |
| Platforms and ladders for burner, blower ,Maintenance. | |
| Return track drive: | |
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For trolley movement on return track, Fully automatic system of motor and gear box along with wire rope and pulley, shall be provided. |
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| Kiln Doors : | |
| 2 Doors
shall be provided at both ends of the kiln. The doors shall be electrically driven and fully automatic. |
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| Power Required : | |
| Total Power requirement for the kiln & Auxiliary equipment. | 175 Kw (Installed) |
| Area Required : | |
| Total area required for kiln return track | 150 M long x 24 M width. |
| Unloading & repairing track. | (including trolley unloading area) |
| Clear height required inside the shade | 6M from factory floor level. |
| CHAMBER DRYER FOR MECHANISED RED BRICK | |
| Performance data : | |
| Type of dryer |
: Chamber type for finger car loading. |
| Capacity per day | : 1,16,480 Pc .(408MT). |
| Brick size | : 267 x128 x80 mm (wet). |
| No. of double chambers
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: 13. |
| Initial moisture | : 16 to 18 %. |
| Residual moisture | : 3% (max.). |
| Water per brick | : 0.76 Kg. |
| Specific heat consumption
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: 950 Kcal (av) |
| Per kg. of evaporated water | : 800C. |
| Temperature of hot air | : 350 Kw. |
| Installed power | |
| Dimensional data : | |
| Depth of chamber |
: 18 M |
| Width of single rail | : 2 M |
| Width of double chamber | : 5.2 M |
| Width of drier | : 75 M |
| Height of drier building | : 6 M. (inside). |
| Heat supply | : 50% from tunnel kiln 50% from hot air generators. |
| The drier shall operate on high volume of circulating hot air at low pressure. | |
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Each individual double chamber shall be equipped with one hot air generator, one hot air injection fan and one trolley mounted hot air re-circulation fan. The burner fitted on each hot air generator shall be switched on or off as per requirement of each chamber. |
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| Supplies consist of : | |
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Steel construction inside dryer chamber for loading of brick pallets. The structures are designed to ensure circulation of hot air air bricks. 1No.Hot air supply fan including 75 Kw drive motor for delivery of hot air from kiln to drier . |
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| 13 Nos. 7.5 Kw Hot air injecting fans for delivery of hot air into individual chambers. | |
| 13 Nos. 15 Kw trolley mounted hot air re-circulation fans. | |
| 13 Nos. hot air generator one for each chamber. | |
| 1 Lot of rails and sleepers for all 13 chambers and transfer car track. | |
| Complete ducts for hot air entry, exhaust with insulations etc. | |
| All electrical and temperature control equipments. | |
| Clients scope : | |
| Pallets for brick loading. Drier building to be made in brick walls, Concrete columns and ceiling, all as per Our drawing. | |
| in accordance with the equipment supplied. | |
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