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Biomass straw sludge fuel and preparation method thereof

A biomass straw and sludge technology, which is applied in the directions of biofuel, waste fuel, fuel, etc., can solve the problems of polluting the atmosphere and high heat consumption, and achieve the effect of increasing calorific value, high fuel calorific value and good flammability.

Pending Publication Date: 2019-02-22
HEFEI GUOHUI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of sludge treated by this method is relatively large, and the mass ratio of biomass powder to sludge is 1:2 to 3; The mud needs to be dried, which consumes a lot of heat

Method used

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  • Biomass straw sludge fuel and preparation method thereof
  • Biomass straw sludge fuel and preparation method thereof
  • Biomass straw sludge fuel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of biomass straw sludge fuel, which is composed of the following raw materials in parts by weight: 100 parts of municipal sludge with a water content of 60% (organic matter content 450g / Kg), 100 parts of corn straw particles, 1.5 parts of hydroxypropyl methylcellulose share.

[0033] The preparation method is:

[0034] S1: Feed the corn stalks into the crusher and crush them into particles with a particle size of 1mm;

[0035] S2: Send the sludge, corn stalk particles, and hydroxypropyl methylcellulose into the mixing tank in proportion through the quantitative feeder, and stir and mix at room temperature for 20 minutes until the mixture is uniform;

[0036] S3: Send the uniformly mixed materials into the sludge forming machine, which is equipped with a spherical mold with a diameter of 3 cm, and the extrusion pressure is 0.2 mpa; after extrusion, the biomass straw sludge fuel with a particle size of 3 cm is obtained.

Embodiment 2

[0038] A biomass straw sludge fuel, consisting of the following raw materials in parts by weight: 100 parts of municipal sludge with a water content of 70% (organic matter content 420g / Kg), 120 parts of wheat straw particles, 3.5 parts of hydroxypropyl methylcellulose share.

[0039] The preparation method is:

[0040] S1: sending the wheat straw into the crusher, crushing it into particles with a particle size of 1mm;

[0041] S2: Send the sludge, wheat straw particles, and hydroxypropyl methylcellulose into the mixing tank in proportion through the quantitative feeder, and stir and mix at room temperature for 15 minutes until the mixture is uniform;

[0042] S3: Send the uniformly mixed materials into the sludge forming machine. A cylindrical mold with a length of 4cm and a diameter of 0.8cm is installed in the forming machine, and the extrusion pressure is 0.2mpa; after extrusion, the cylindrical biomass straw sludge is obtained. mud fuel.

Embodiment 3

[0044]A biomass straw sludge fuel, consisting of the following raw materials in parts by weight: 100 parts of tannery sludge with a water content of 60% (organic matter content 380g / Kg), 80 parts of soybean straw particles, hydroxypropyl methylcellulose 1 serving.

[0045] The preparation method is:

[0046] S1: Send the soybean stalks into the crusher, and crush them into particles with a particle size of 1mm;

[0047] S2: Send the sludge, soybean straw particles, and hydroxypropyl methylcellulose into the mixing tank in proportion through the quantitative feeder, and stir and mix at room temperature for 30 minutes until the mixture is uniform;

[0048] S3: Send the uniformly mixed materials into the sludge molding machine, which is equipped with a spherical mold with a diameter of 3.5cm, and the extrusion pressure is 0.2mpa; after extrusion molding, the biomass straw sludge with a particle size of 3.5cm is obtained fuel.

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Abstract

The invention discloses a biomass straw sludge fuel. The biomass straw sludge fuel comprises the following raw materials in parts by weight: 100 parts of sludge containing 55-70% of water, 50-500 parts of biomass straw particles, and 1-10 parts of hydroxypropyl methyl cellulose. A preparation method of the biomass straw sludge fuel comprises the following steps: S1, feeding biomass straws into a crusher; crushing the biomass straws into particles being 1 mm in particle size; S2, feeding the sludge, the biomass straw particles and the hydroxypropyl methyl cellulose into a mixing tank through aquantitative feeding machine; stirring and uniformly mixing under normal temperature; S3, feeding the uniformly-mixed materials into a sludge forming machine for extruding and forming to obtain the biomass straw sludge fuel. According to the method, the sludge is converted into flammable fuel; the calorific value of the fuel is high; the flammable performance is high; the fuel can still be particle-shaped after flaming; little flying ash is adsorbed into the dust particles, so that little flying dust is produced; the method is clean and environmentally friendly.

Description

technical field [0001] The invention relates to a biomass straw sludge fuel and a preparation method thereof, belonging to the technical field of sludge treatment. Background technique [0002] Sludge is the solid sediment produced in the sewage treatment process, which can be further subdivided into domestic sewage sludge, industrial wastewater sludge and water supply sludge according to its source. The main characteristics of sludge include large volume, high moisture content, high organic matter content, easy to rot and smell, fine particles, small specific gravity, and colloidal liquid state, which is very difficult to handle. With the continuous improvement of sewage treatment rate, the sludge production is increasing, how to reduce the sludge has become the focus of current research. [0003] At present, the commonly used treatment methods for aqueous sludge include direct landfill, agricultural utilization, drying and direct incineration. Direct landfill is the earl...

Claims

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Application Information

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IPC IPC(8): C10L5/44C10L5/46
CPCC10L5/445C10L5/46Y02E50/10Y02E50/30
Inventor 于宁瑞
Owner HEFEI GUOHUI ENVIRONMENTAL PROTECTION TECH
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