Preparation method of city refuse incineration furnace granular fuel

A technology of municipal waste and granular fuel, which is applied in the direction of fuel, solid fuel, biofuel, etc., can solve the problems of increasing slag discharge, low calorific value, and poor incineration quality, so as to optimize the operating environment, reduce moisture content, The effect that usage is simple

Inactive Publication Date: 2006-05-03
雷丰源
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now it is in the stage of development and research, the technology maturity is relatively low, and the operation effect of equipment is generally poor. The total number of operating factories accounts for less than 10% of the various waste disposal methods.
[0007] 1. Due to the high moisture content and low calorific value of domestic waste, it is necessary to add a large amount of combustion-supporting substances and heat supplementing substances;
[0008] 2. Affected by the particle size of garbage and the combustion characteristics of each component, the residence time of the incineration process is not easy to control, and the incomplete combustion is prominent, which not only increases the amount of sla

Method used

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  • Preparation method of city refuse incineration furnace granular fuel

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Effect test

Embodiment 1

[0039] A method for preparing granular fuel for municipal refuse incinerators is characterized in that it comprises the following steps:

[0040] (1) Sorting and crushing: Sorting urban garbage, removing hard substances such as glass, pebbles, metals, bones, etc., sorting out combustible garbage, and then crushing these combustible garbage into garbage blocks with a particle size of ≤100mm, And at the same time ensure that the bag breaking rate of combustible garbage is ≥95%;

[0041] (2) Evaporation by draining: mixing and draining the above-mentioned rubbish block material in a leaching bin with an oxygenation pressure of 2900Pa, evaporating the moisture in the rubbish block material, until the water content of the rubbish block material is ≤40%;

[0042] (3) Secondary crushing: carry out secondary crushing on the garbage blocks with a water content of ≤40% to form garbage blocks with a particle size of ≤50mm;

[0043](4) Granulation: add calcium oxide of 3% of the weight o...

Embodiment 2

[0046] A method for preparing granular fuel for municipal refuse incinerators is characterized in that it comprises the following steps:

[0047] (1) Sorting and crushing: Sorting urban garbage, removing hard substances such as glass, pebbles, metals, bones, etc., sorting out combustible garbage, and then crushing these combustible garbage into garbage blocks with a particle size of ≤100mm, And at the same time ensure that the bag breaking rate of combustible garbage is ≥95%;

[0048] (2) Evaporation by draining: mixing and draining the above-mentioned rubbish blocks in a leaching chamber with an oxygenation pressure of 3300Pa, evaporating the moisture in the rubbish blocks until the water content of the rubbish blocks is ≤40%;

[0049] (3) Secondary crushing: carry out secondary crushing on the garbage blocks with a water content of ≤40% to form garbage blocks with a particle size of ≤50mm;

[0050] (4) Granulation: Add calcium carbonate with 8% of the weight of the garbage ...

Embodiment 3

[0053] A method for preparing granular fuel for municipal refuse incinerators is characterized in that it comprises the following steps:

[0054] (1) Sorting and crushing: Sorting urban garbage, removing hard substances such as glass, pebbles, metals, bones, etc., sorting out combustible garbage, and then crushing these combustible garbage into garbage blocks with a particle size of ≤100mm, And at the same time ensure that the bag breaking rate of combustible garbage is ≥95%;

[0055] (2) Evaporation by draining: mixing and draining the above-mentioned rubbish blocks in a leaching chamber with an oxygenation pressure of 3300Pa, evaporating the moisture in the rubbish blocks until the water content of the rubbish blocks is ≤40%;

[0056] (3) Secondary crushing: carry out secondary crushing on the garbage blocks with a water content of ≤40% to form garbage blocks with a particle size of ≤50mm;

[0057] (4) Granulation: Add slaked lime of 5% of the weight of the waste block to t...

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Abstract

The invention discloses a produce method for grain fuel used in municipal refuse incinerator, which comprises: separating, breaking, draining, evaporating, secondary breaking, granulating and drying. This invention reduces the require to material, heat value and moisture, enlarges scope of application, cuts energy consumption and cost, decreases pollution greatly, and can be used to restart stop-production incinerator.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a production method of granular fuel for municipal solid waste incinerators. Background technique [0002] Municipal waste contains many organic substances that are easily fermented. Without treatment, it will produce odor and polluting leachate, which will affect the environment. In the traditional waste disposal methods, such as sanitary landfill method, it occupies a large area and has high disposal costs. It not only wastes a lot of land resources, but also brings environmental pollution, and its applicable value is getting lower and lower. This method has gradually Be eliminated; Another example is the composting method, which has incomplete utilization of organic matter, coupled with complex fertilizer components and small reductions, etc., and is gradually being eliminated. [0003] The harmlessness, reduction and energyization of urban w...

Claims

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Application Information

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IPC IPC(8): C10L5/46
CPCY02E50/10Y02E50/30
Inventor 雷建国
Owner 雷丰源
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