Solid granular fuel prepared from waste biomass material

Abstract

The invention relates to solid granular fuel prepared from waste biomass materials, and belongs to the field of fuel. The technical scheme adopted by the invention is as follows: the fuel is prepared from the following components: agricultural and forestry wastes, papermaking sludge, rice mill dedusting residues, furniture materials and a combustion improver. The mass ratio of the forestry and agricultural residues to the total substance mass is 25-47%, the papermaking sludge residue is 10-18%, the rice mill dedusting residue is 21-26%, the furniture waste material is 8-18%, and the combustion improver is 14-23%. According to the composite biomass solid fuel disclosed by the invention, the papermaking sludge residues and the rice factory dust removal residues which are soil-containing wastes are used as fuel components, so that the utilization rate of organic matter garbage is increased, and the recycling of various organic wastes is realized by mixing agricultural and forestry wastes, furniture wastes and auxiliary fuels.

Description

Technical Field

[0001] The invention relates to a solid particle fuel made from waste biomass materials, belonging to the field of biomass fuels. Background Art

[0002] At present, industrial or agricultural production and daily life applications mostly use fossil fuels such as oil, coal, and natural gas as the main energy consumed.

[0003] At present, due to the promotion of the use of environmentally friendly energy and the fact that mineral resources such as oil, coal and natural gas are non-renewable resources and are gradually depleted, the use of renewable resources such as solar energy and wind energy is currently being promoted.

[0004] However, solar and wind energy rely on energy storage facilities, and there are still cost issues in their large-scale promotion and use.

[0005] At the same time, the country promotes returning crop straw to the fields to reduce air pollutant emissions caused by direct combustion. In rural areas characterized by scattered settlements, the use of renewable biomass pellets is a good energy option. At present, various biomass power plants have been built across the country, and biomass materials are also used comprehensively.

[0006] Biomass fuel refers to the use of various organic waste materials as fuel. Common agricultural and forestry waste, various discarded furniture, organic waste in industrial production such as dust from grain screening are all combustible biomass materials. Effective and comprehensive utilization of them can reduce air pollution caused by direct combustion and provide a new source of renewable resources.

[0007] At present, the raw materials of composite biomass solid fuel are not rich enough. For example, the dust residue from rice mills contains a lot of soil, which is difficult to burn and has the defect of insufficient combustion of individual components. Furniture waste or old furniture is not used on a large scale and is directly discarded as domestic garbage, which is wasteful. At present, the use of biomass needs to further improve the process and improve the utilization efficiency. Summary of the invention

[0008] The invention provides a solid particle fuel made from waste biomass materials, which solves the problem of comprehensive utilization of organic wastes such as papermaking sludge, rice mill dust residue, furniture materials, etc.

[0009] To achieve the above object, the technical solution adopted by the present invention is: The solid particle fuel made from waste biomass materials of the present invention comprises the following components: agricultural and forestry waste, papermaking sludge, rice mill dust residue, furniture materials and combustion aid; the mass proportions of the components are as follows: agricultural and forestry waste accounts for 25-47% of the total material mass, papermaking sludge accounts for 10-18%, rice mill dust residue accounts for 21-26%, furniture waste accounts for 8-18% and combustion aid accounts for 14-23%.

[0010] According to the solid particle fuel made from the waste biomass materials, the moisture content of the rice mill dust residue is 10-15%.

[0011] According to the solid particle fuel made from waste biomass materials, the moisture content of the furniture material is 5-10%.

[0012] According to the solid particle fuel manufactured from waste biomass materials, the agricultural and forestry waste includes at least one of rice husks, peanut shells, sawdust, leaves, fruit shells, straws, bean straws and branches.

[0013] According to the solid particle fuel made from waste biomass materials, the combustion aid includes coke, manganese oxide, potassium chloride and borax.

[0014] According to the solid particle fuel made from the waste biomass materials, the mass content of each substance in the combustion aid is 35-66% of coke ash, 20-35% of manganese oxide, 7-15% of potassium chloride, and 7-15% of borax.

[0015] According to the solid particle fuel made from the waste biomass materials, the mass proportions of the components are 40% of agricultural and forestry waste, 14% of papermaking sludge, 19% of rice mill dust residue, 12% of furniture materials, and 15% of combustion aid.

[0016] The production method of solid particle fuel made of waste biomass materials of the present invention comprises the following steps: during preparation, all raw materials are crushed and passed through a 40-mesh sieve, and then the above materials are air-dried to control the moisture content to be no higher than 15%, and then mixed according to the mass ratio requirements, stirred evenly, added to a forming particle machine, and pressed into finished particles.

[0017] The composite biomass solid fuel of the present invention uses papermaking mud residue and rice mill dust residue as fuel components, which are waste containing soil, to improve the utilization rate of organic waste, mix agricultural and forestry waste and furniture waste and auxiliary fuel, and realize the reuse of various organic wastes. The fixed fuel particles are used in households and biomass power plants to improve the utilization rate of various wastes and reduce the low combustion efficiency problem of burning single organic waste. DETAILED DESCRIPTION

[0018] The content of the present invention is further described below: The solid particle fuel made from waste biomass materials of the present invention comprises the following components: agricultural and forestry waste, papermaking sludge, rice mill dust residue, furniture materials and combustion aid; the mass proportions of the components are as follows: agricultural and forestry waste accounts for 25-48% of the total mass of the material, papermaking sludge accounts for 10-18%, rice mill dust residue accounts for 15-23%, furniture waste accounts for 8-18% and combustion aid accounts for 14-23%.

[0019] The moisture content of the rice mill dust residue is 10-15%, and the moisture content of the furniture material is 25-28%. The agricultural and forestry waste used in the pellet fuel includes at least one of rice husk, peanut shell, sawdust, leaves, fruit shell, straw, bean straw and branches.

[0020] The combustion aids include coke ash, manganese oxide, potassium chloride and borax, and the mass content of each substance is 35-66% of coke ash, 20-35% of manganese oxide, 7-15% of potassium chloride and 7-15% of borax.

[0021] The production method of solid particle fuel made of waste biomass materials of the present invention comprises the following steps: during preparation, all raw materials are crushed and passed through a 40-mesh sieve, and then the above materials are air-dried to control the moisture content to be no higher than 15%, and then mixed according to the mass ratio requirements, stirred evenly, added to a forming particle machine, and pressed into finished particles.

[0022] The implementation of the present invention is described with reference to a plurality of specific implementation data. Example

[0023] The solid pellet fuel made from waste biomass materials is composed of the following components in kg: 55 kg of agricultural and forestry waste, 20 kg of papermaking sludge, 32 kg of rice mill dust residue, 17 kg of furniture materials and 23 kg of combustion aid. Example

[0024] The solid pellet fuel made from waste biomass materials is composed of the following components in kg: 65 kg of agricultural and forestry waste, 20 kg of papermaking sludge, 22 kg of rice mill dust residue, 15 kg of furniture materials and 20 kg of combustion aid. Example

[0025] The solid pellet fuel made from waste biomass materials is composed of the following components in kg: 68 kg of agricultural and forestry waste, 20 kg of papermaking sludge, 24 kg of rice mill dust residue, 15 kg of furniture materials and 25 kg of combustion aid.

[0026] Comparative Example 1 A composite biomass solid fuel, composed of the following components in kg: 20 kg of papermaking sludge, 28 kg of rice mill dust residue, 17 kg of furniture material and 23 kg of combustion aid. Comparative Example 2 A composite biomass solid fuel is composed of the following components measured in kg: 55 kg of agricultural and forestry waste, 20 kg of papermaking sludge, 17 kg of furniture materials and 23 kg of combustion aid.

[0027] Comparative Example 3 A composite biomass solid fuel is composed of the following components measured in kg: 55 kg of agricultural and forestry waste, 10 kg of papermaking sludge, 28 kg of rice mill dust residue, 17 kg of furniture materials and 23 kg of combustion aid.

[0028] Comparative Example 4 A composite biomass solid fuel is composed of the following components measured in kg: 45 kg of agricultural and forestry waste, 10 kg of papermaking sludge, 28 kg of rice mill dust residue, 17 kg of furniture materials and 23 kg of combustion aid.

[0029] Effect test The calorific values ​​of the composite biomass solid fuels prepared in the above examples and comparative examples were measured respectively.

[0030] Table 1 Calorific value (mJ / kg) Ash content (%) Water content (%) Example 1 15.80 6.50 4.30 Example 2 16.30 6.70 4.20 Example 3 16.80 6.20 4.80 Comparative Example 1 15.90 6.90 4.50 Comparative Example 2 14.30 7.30 4.20 Comparative Example 3 14.30 6.50 5.60 Comparative Example 4 17.80 5.50 3.20 It can be seen from the data in Table 1 that under the same conditions, the solid particle fuel made from the waste biomass material of the present invention has a calorific value ranging from 15 to 18 Mj / kg, has a large calorific value, and has broad application prospects.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0032] The test results are shown in Table 1.

[0033] It is 25-50 parts of coke ash, 15-25 parts of manganese oxide, 5-10 parts of potassium chloride and 5-10 parts of borax.

[0034] The invention is composed of the following components measured in kg: 35-65 kg of agricultural and forestry waste, 15-25 kg of papermaking sludge, 20-35 kg of rice mill dust residue, 10-25 kg of furniture materials and 20-28 kg of combustion aid.

[0035] The beneficial effects of the present invention are as follows: the composite biomass solid fuel of the present invention has the characteristics of high calorific value and low density, and is prepared by utilizing waste materials and sawdust generated in the papermaking process; the composite biomass solid fuel of the present invention has low cost and high environmental protection performance, and at the same time, the composite biomass solid fuel is prepared into a specific shape, which greatly improves its combustion efficiency, reduces environmental pollution, and has broad application prospects.

[0036] Based on the above technical solution, the present invention can also be improved as follows.

[0037] Furthermore, it is composed of the following components in kg: 55 kg of agricultural and forestry waste, 20 kg of papermaking sludge, 28 kg of rice mill dust residue, 17 kg of furniture materials and 23 kg of combustion aid.

[0038] Furthermore, the water content of the rice mill dust removal residue is 10-15%.

[0039] Furthermore, the mass concentration of the furniture material is 25-28%.

[0040] Furthermore, the agricultural and forestry waste includes at least one of rice husks, peanut shells, sawdust, leaves, fruit shells, straw, bean straw and branches.

[0041] Furthermore, the combustion aid is 25-50 parts of super coke ash, 15-25 parts of manganese oxide, 5-10 parts of potassium chloride and 5-10 parts of borax.

Claims

1. A solid particle fuel made from waste biomass materials, characterized in that: The invention comprises the following ingredients: agricultural and forestry waste, papermaking sludge, rice mill dust residue, furniture materials and combustion aids; the mass proportions of the components are as follows: agricultural and forestry waste accounts for 25-47% of the total mass of the material, papermaking sludge accounts for 10-18%, rice mill dust residue accounts for 21-26%, furniture waste accounts for 8-18% and combustion aids accounts for 14-23%.

2. The solid particle fuel made from waste biomass materials according to claim 1, characterized in that: The moisture content of rice mill dust residue is 10-15%.

3. The solid particle fuel made from waste biomass materials according to claim 1, characterized in that: The moisture content of the furniture material is 25-28%.

4. The solid particle fuel made from waste biomass materials according to claim 1, characterized in that: The agricultural and forestry wastes include at least one of rice husks, peanut shells, sawdust, leaves, fruit shells, straws, bean straws and branches.

5. The solid particle fuel made from waste biomass materials according to claim 1, characterized in that: The combustion aids include coke ash, manganese oxide, potassium chloride and borax.

6. The solid particle fuel made from waste biomass materials according to claim 5, characterized in that: The mass content of each substance in the combustion aid is 35-66% of coke ash, 20-35% of manganese oxide, 7-15% of potassium chloride, and 7-15% of borax.

7. The solid particle fuel made from waste biomass materials according to claim 1, characterized in that: The mass proportion of each component is 40% of agricultural and forestry waste, 14% of papermaking sludge, 19% of rice mill dust residue, 12% of furniture materials, and 15% of combustion aid.

8. A method for producing solid particle fuel made from waste biomass materials according to claim 1, characterized in that: During preparation, all raw materials are crushed and passed through a 40-mesh sieve, and then the above substances are air-dried to control the moisture content to be no higher than 15%, and then mixed according to the mass ratio requirements, stirred evenly, added to the forming granulator, and pressed into finished granules.