Single Disc
Coal Crusher 5 No. Size
Engineered for consistent fine coal disintegration with adjustable output size below 2mm.
Coke Oven Machinery Series
Coal
Charging Car (Top Feed)
Optimized for efficient "Top Charging" of coke ovens, this machine runs on battery-top rails to deliver precise coal quantities into the oven chambers. Equipped with 2, 3 or 4 Conical Hoppers and a heavy-duty travel mechanism, it ensures uniform coal distribution.
- Hopper Capacity
- 8 - 20 Tons
- Travel Motor
- 15 HP (Elec.)
- Charging Mouths
- 2, 3 & 4
- Operation
- Gravity Feed
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- ISO 9001:2015
- Heavy Structure
What is a coal charging car?
A coal charging car, also called a larry car, is a rail-mounted machine that runs along the top of a coke oven battery and charges coal into the ovens from above. It takes a measured coal blend from the overhead service bunker into its conical hoppers, travels to the empty oven, and lines up its telescopic sleeves with the oven's charging holes to limit smoke leakage. Motorised slide gates (3 HP) then open and the coal flows in by gravity, with a manual override wheel for power failures.
A 15 HP motor with a worm reducer gearbox moves the car at 60 to 80 metres per minute and positions it precisely. Hoppers are made from 8 mm tapered steel plate with steep sides so that wet coal flows, in capacities of 8, 15 or 20 tons. Safety features include hydraulic buffers, travel alarms and heat shields for the operator cabin.
Precision Coal Feed System
The Manual Tools Company Coal Charging Car (Larry Car) is a rail-mounted vehicle designed to travel along the top of the coke oven battery. Its primary function is to receive pulverized coal from the overhead service bunker and discharge it into the hot ovens via charging holes.
Constructed with 8mm thick tapered steel plates, the hoppers ensure smooth coal flow without bridging. The travel mechanism is powered by a 15 HP motor coupled with a Worm Reducer Gearbox, providing high torque for controlled movement and precise positioning over the oven mouths.
Technical Parameters
| Parameter | Specification Value |
|---|---|
| Hopper Capacity | 8 Tons / 15 Tons / 20 Tons (Customizable) |
| Long Travel Motor | 15 HP (Electric) |
| Gate Operation Motor | 3 HP (For Hopper Discharge) |
| Number of Hoppers | 2, 3 or 4 Conical Hoppers |
| Travel Speed | 60 - 80 meters/minute |
| Gearbox Type | Heavy Duty Worm Reducer |
| Body Plate Thickness | 8mm (Tapered / Vertical) |
3-Stage Charging Cycle
-
Step 01
Bunker Filling
The car positions itself under the overhead coal tower. The hoppers are filled with a precise weight of coal blend.
-
Step 02
Alignment
Driven by the 15 HP motor, the car travels to the empty oven. The telescopic sleeves align perfectly with the oven's charging holes to prevent smoke leakage.
-
Step 03
Gravity Discharge
The bottom slide gates open (via 3 HP motor or manual gear). Coal flows by gravity into the oven. Mechanical vibrators may engage to clear sticky coal.
Coke Ovens
Standard equipment for top-charged byproduct recovery coke oven batteries.
Steel Plants
Critical for the continuous production of metallurgical coke in integrated steelworks.
Heat Warning: This machine operates on top of hot ovens. Regularly inspect electrical cables for heat damage.
Lubrication Schedule
- Travel Wheels: Grease bearings weekly. High-temp grease recommended.
- Gearboxes: Check oil levels monthly. Replace SAE-140 oil every 6 months.
- Slide Gates: Lubricate rack and pinion mechanisms weekly to prevent jamming.
Mechanical Inspection
- Check wheel flanges for excessive wear due to rail misalignment.
- Inspect hopper interiors for coal build-up (rat-holing).
What travel system is used?
The car runs on a robust rail-mounted system (Track wheels) powered by a 15 HP slip-ring or squirrel cage motor.
How many charging mouths does it have?
Built with 2, 3 or 4 charging mouths, to match the charging holes on your oven top.
Is the discharge automated?
Yes, the slide gates are motorized (3 HP) for semi-automatic operation, with a manual override wheel in case of power failure.
What safety features are included?
Includes hydraulic buffers, audible travel alarms, and heat shields for the operator cabin.
Can it handle wet coal?
Yes, the hoppers have steep tapered angles (conical shape) to facilitate the flow of wet coal.
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