Since municipal solid waste is directly incinerated as solid fuel without treatment, the following main problems often exist:
1. Organic matter in garbage is highly perishable and difficult to transport and store;
2. Garbage has the characteristics of large fluctuations in composition and calorific value, and high moisture and ash content, which can easily cause unstable combustion;
3. Garbage often contains plastics, salt and other chlorine-containing compounds. When heated at high temperatures, corrosive hydrogen chloride gas is produced. Hydrogen chloride emissions can form acid rain and corrode metal equipment in the furnace; due to the presence of chlorine-containing compounds, it may also Produce highly toxic. Therefore, the emergence of briquetting machines is very necessary.

| Model | Power | Capacity | Hole quantity |
| MK-550 | 55kw | 1t/h-1.5t/h | 36pcs |
| MK-750 | 75kw | 1.5t/h-2t/h | 54pcs |
| MK-900 | 90kw | 2t/h-2.5t/h | 72pcs |
| MK-1600 | 160kw | 2.5t/h-3t/h | 120pcs |
From the above situations, we know that municipal solid waste needs to be pretreated before it can be used. The emergence of a garbage-derived fuel that effectively pretreats and shapes municipal solid waste before entering the furnace, and then incinerates and utilizes it as solid fuel, provides new ideas for solving the above problems. It has now been applied to municipal solid waste. , general industrial solid waste, papermaking waste, washing plant waste, scrap steel plant waste, textile waste, leather waste, rag waste, waste clothing and other materials.
