Saudi Arabia’s landscape is dominated by arid deserts and sandy soils that generally lack stable organic matter. This natural condition makes water retention, nutrient holding capacity and soil structure major challenges for agriculture. In the framework of Saudi Vision 2030 and the Saudi Green Initiative, the country is investing heavily in sustainable farming, landscaping and soil restoration. One of the emerging technologies for this purpose is the use of ground carbon black as a soil amendment. When finely ground, carbon black can act as a carbon-rich conditioner that changes the physical and chemical properties of sandy soil, helping it hold water and nutrients for longer periods. A production capacity of 20-30 tph is ideal for large-scale projects that require thousands of tons of processed material every month.
Raw carbon black is usually produced in pellets or beads. In that form, its surface area is not fully available for interaction with soil particles. Grinding reduces the particle size and breaks down agglomerates, creating a powder with a uniform and controllable fineness. This has a direct effect on how well the carbon black mixes with desert soil and how much of its surface is exposed to moisture and nutrients. The grinding process also improves the material’s bulk density and flowability, which simplifies storage, transportation and field application. Therefore, a reliable and efficient grinding mill is an essential component of any carbon black soil improvement enterprise.
The 20-30 tph capacity range is well suited to a commercial soil conditioner plant. At 20 to 30 tons per hour, the plant can produce between 160 and 240 tons in an eight-hour shift, or about 480 to 720 tons in a 24-hour operation. With typical application rates of 5 to 20 tons per hectare, this means the plant can treat more than 30 hectares per day. Saudi Arabia’s large agricultural projects, including date palm plantations, fodder fields and public green spaces, require exactly this scale of output. In addition, the dry and hot climate means the machinery must operate reliably with high throughput and low maintenance. Choosing a grinding mill with proven durability and low energy consumption is critical to long-term profitability.
Shanghai Zenith Machinery Co., Ltd. is an excellent manufacturer of ore grinding equipment in China and has made great achievements in the field of ultra-fine powder grinding. The company specializes in the research, development and production of industrial powder grinding equipment. Zenith’s main product range includes the MTW Trapezium Grinding Mill, LM Vertical Grinding Mill, MTM Medium-Speed Grinding Mill, Raymond Mill, Ball Mill, LUM Ultrafine Vertical Mill, XZM Ultrafine Grinding Mill and Hammer Mill. These machines have been widely used in more than 180 countries. For carbon black grinding, the MTW and LM series offer the greatest advantages because of their integrated classifiers, compact layouts and high capacity.
For the specific requirement of 20-30 tph, Zenith recommends the MTW215G Trapezium Grinding Mill as the first choice. The MTW series has multiple patents, including a bevel gear integral transmission, thin oil lubrication and a curved air duct. These features provide a compact structure, long service life and energy-saving operation. The MTW215G can handle a maximum feed size of 50 mm and produce final powder between 1.6 mm and 0.045 mm. Its capacity of 15-45 t/h means that a plant can easily operate at the required 20-30 tph level while keeping margins for feed variations. The main motor power is 280 kW, and the fan motor power is 315 kW, ensuring sufficient grinding and air flow for high output.
An equally strong alternative is the LM190K Vertical Grinding Mill. The LM series integrates five functions: crushing, grinding, powder selection, drying and material conveying. This integration is valuable when the carbon black has a higher moisture content or when the project site has limited space for separate equipment. The LM190K has a grinding plate diameter of 1900 mm, a capacity of 23-68 t/h and an output fineness of 170-40 microns. It can accept feed particles up to 45 mm. The main motor power is 500 kW. Although the motor is larger, the mill offers efficient drying in the same unit, which may reduce total system energy consumption if drying is required.
| Parameter | MTW215G Trapezium Grinding Mill | LM190K Vertical Grinding Mill |
|---|---|---|
| Grinding Plate Diameter | — | 1900 mm |
| Max. Feed Size | <50 mm | <45 mm |
| Final Product Size | 1.6-0.045 mm | 170-40 μm |
| Capacity | 15-45 t/h | 23-68 t/h |
| Main Motor Power | 280 kW | 500 kW |
| Fan Motor Power | 315 kW | Integrated |
The MTW215G is recommended for customers who want a dedicated carbon black grinding mill with lower installed power and straightforward operation. The LM190K is recommended when drying capability and space savings are the top priorities.
Carbon black is a fine, light and combustible powder. Dust explosion prevention must be included in the design of the plant. A typical safe grinding process uses a pulse jet bag filter, explosion relief vents, carbon monoxide and temperature monitoring, and possibly nitrogen inerting. Zenith grinding mills can be supplied with these auxiliary safety systems. It is also important to keep the mill’s internal temperature under control, because excessive heat can affect both safety and product quality. The MTW and LM series are designed with efficient air-cooled and lubricated systems. The high-efficiency classifier ensures that only particles with the required fineness leave the mill, while coarse particles return to the grinding zone. This increases productivity and reduces the amount of energy wasted on over-grinding.
For a typical project, the production line starts with a hopper and belt feeder that delivers raw carbon black pellets to the MTW215G grinding mill. Inside the mill, the material is ground between the roller and the grinding ring, and the built-in classifier selects the fine powder. The finished powder is transported by the fan into a baghouse dust collector, where it is separated from the air stream and stored in a silo. A rotary valve discharges the powder into a packing system or directly into bulk tankers. The whole system is controlled from an electrical cabinet fitted with PLC and sensors. Because the MTW215G has a compact and vertical arrangement, the plant requires a relatively small footprint, which is an advantage in desert areas where leveling and foundations are expensive.
Once the ground carbon black powder is produced, it can be spread onto fields and incorporated into the topsoil using conventional farm machinery. It can also be mixed with compost or mineral fertilizers to make a custom soil improvement product. In Saudi Arabia, this is especially useful for establishing new green belts and improving the performance of existing farmland.
Carbon black grinding is a key step in turning a carbonaceous industrial material into a practical soil improvement agent. In Saudi Arabia, where agriculture and landscaping face extreme climatic conditions, a stable and efficient 20-30 tph grinding plant can supply large quantities of fine carbon black to improve soil water retention and fertility. The MTW215G Trapezium Grinding Mill offers the ideal balance of capacity, energy efficiency and reliability. The LM190K Vertical Grinding Mill is an excellent alternative when drying and space-saving functions are required. With Shanghai Zenith Machinery’s proven technology and after-sales support, operators can look forward to long equipment life and low operating costs. For any new or extended carbon black soil improvement project in Saudi Arabia, Zenith’s grinding solutions represent a professional and future-proof investment.
