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A Continuous and Forced Asphalt Mixing Production Method

一种沥青拌合、相结合的技术，应用在混合机、预处理控制、搅拌机配件等方向，能够解决增加公司经营成本、损耗时间和电能、污染环境等问题，达到避免沥青烟气外泄、提高使用寿命、提高安全性能的效果

Active Publication Date: 2021-06-25
SHANGHAI SHISHEN IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the general hot-mix treatment process, since the open flame directly contacts the recycled materials, the hot-mixed recycled materials will produce a large amount of waste asphalt fumes at this time, and the above-mentioned asphalt fumes will contain a large amount of volatile components (the above-mentioned components come from waste Asphalt material), at this time, a large amount of volatile components are produced, and if they are directly discharged into the air, they will pollute the environment; if they are treated by an exhaust gas absorption device, due to the large amount of volatile components produced, a high-power exhaust gas absorption device needs to work for a long time to complete The treatment of exhaust gas, if things go on like this, consumes a lot of time and electric energy, which increases the operating cost of the company

Method used

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  • A Continuous and Forced Asphalt Mixing Production Method
  • A Continuous and Forced Asphalt Mixing Production Method
  • A Continuous and Forced Asphalt Mixing Production Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0073] Embodiment 1-1: a kind of asphalt mixing production method combining continuous type and forced type, such as figure 1 shown, including the following steps:

[0074] In step one,

[0075] A1. According to the grading requirements, the new material is initially batched at room temperature to obtain cold aggregate, wherein the cold aggregate contains 18-31.5mm crushed stone, 10-20mm crushed stone and 5-10mm crushed stone, and The weight ratio of 18-31.5mm gravel, 10-20mm gravel and 5-10mm gravel is 21:18:18.

[0076] A2. The cold aggregate is discharged into the inner cylinder of the double-layer split-type drying drum for combustion. When the temperature of the double-layer split-type drying drum is raised to 100°C, the cold aggregate is first dried, and then the double-layer split-type drying drum is continuously raised. The temperature of the split drying cylinder is 200°C, and the cold aggregate is heated to 180°C to obtain hot aggregate.

[0077] A3. The hot aggre...

Embodiment 2-1

[0094] Embodiment 2-1: a kind of asphalt mixing production method combining continuous type and forced type, comprising the following steps:

[0095] In step one,

[0096] A1. According to the grading requirements, the new material is initially batched at room temperature to obtain cold aggregate, wherein the cold aggregate contains 18-31.5mm crushed stone, 10-20mm crushed stone and 5-10mm crushed stone, and The weight ratio of 18-31.5mm gravel, 10-20mm gravel and 5-10mm gravel is 22:20:19.

[0097] A2. The cold aggregate is discharged into the inner cylinder of the double-layer split-type drying drum for combustion. When the temperature of the double-layer split-type drying drum is raised to 110°C, the cold aggregate is first dried, and then the double-layer split-type drying drum is continuously raised. The temperature of the split-flow drying cylinder is 210°C, and the cold aggregate is heated to 190°C to obtain hot aggregate.

[0098] A3. The hot aggregate is temporarily...

Embodiment 3-1

[0114] Embodiment 3-1: a kind of asphalt mixing production method combining continuous type and forced type, comprising the following steps:

[0115] In step one,

[0116] A1. According to the grading requirements, the new material is initially batched at room temperature to obtain cold aggregate, wherein the cold aggregate contains 18-31.5mm crushed stone, 10-20mm crushed stone and 5-10mm crushed stone, and The weight ratio of 18-31.5mm gravel, 10-20mm gravel and 5-10mm gravel is 23:25:20.

[0117] A2. The cold aggregate is discharged into the inner cylinder of the double-layer split-type drying drum for combustion. When the temperature of the double-layer split-type drying drum is raised to 120°C, the cold aggregate is first dried, and then the double-layer split-type drying drum is continuously raised. The temperature of the split-flow drying cylinder is 220°C, and the cold aggregate is heated to 200°C to obtain hot aggregate.

[0118] A3. The thermal aggregate is tempora...

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Abstract

The invention discloses a continuous and forced asphalt mixing production method, which belongs to the technical field of concrete processing, and comprises the following steps: heating cold aggregates to obtain hot aggregates; Recycled material is obtained after mixing; hot aggregate, recycled material, powder and asphalt are mixed to obtain premix; the premix is ​​temporarily stored in the pre-mixing storage bin and then mixed in the forced mixing tank, and the obtained finished material enters the finished product Temporary storage in the storage warehouse; in the finished material loading area, the material is unloaded into the storage tank of the finished material delivery vehicle. Pass the generated bitumen flue gas and water vapor into the drying cylinder for secondary incineration; the collected dust enters the exhaust gas absorption and purification device for exhaust gas purification treatment; at the same time, the collected flue gas and air are passed to the burner for use as combustion-supporting gas . The invention avoids the direct burning of the milling and planing material by an open flame; at the same time, the hot aggregate is slowly premixed with the recycled material, the powder material and the asphalt, the mixing efficiency is high, and at the same time, the leakage of the asphalt smoke can be avoided and the heat energy can be utilized, which is energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of concrete processing, and more specifically relates to a continuous and forced asphalt mixing production method. Background technique [0002] Asphalt concrete pavement has good driving comfort and excellent performance, fast construction speed and low maintenance cost. For this reason, most roads of all grades use asphalt pavement. Hot-mix asphalt mixture is the main method of asphalt concrete pavement construction at present, and it is also the key joint of asphalt concrete pavement construction. Precise, uniform pavement mix material. [0003] At present, the existing asphalt mixture is obtained by mixing new materials and recycled materials in proportion, and most of the recycled materials are obtained by using waste asphalt materials through hot mixing or cold mixing. [0004] In the general hot-mix treatment process, since the open flame directly contacts the recycled materials, the hot-mixed recyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/22E01C19/10
CPCE01C7/22E01C19/1004E01C2301/50E01C19/1036B28C7/0023B28C7/0422B28C5/003C04B26/26E01C19/08B01F33/8052B01F27/116B01F35/90B01F33/8364B01F2035/99B01F2101/38
Inventor 时兆武时光胜
Owner SHANGHAI SHISHEN IND & TRADE CO LTD
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