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Construction waste sorting system

A construction waste and sorting system technology, which is applied in construction waste recycling, solid separation, and separation of solids from solids by airflow, can solve the problems of time-consuming and labor-intensive, waste of resources, waste of resources, etc., and reduce transportation. The effect of equipment and conveying times, reducing dust pollution and noise pollution, energy saving and emission reduction

Inactive Publication Date: 2020-05-19
义乌市铭耀智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the acceleration of urbanization in my country, a large number of buildings are demolished in the process of urban transformation, resulting in a large amount of construction waste. If not handled properly, it will cause environmental pollution and waste of resources. Construction waste usually includes concrete blocks and crushed stones. , brick and tile fragments, steel bars and other heavy waste, as well as light waste such as gypsum boards, wallpaper, plastics, fabrics and other light waste for decoration. The mixing of various wastes will bring a lot of inconvenience to waste disposal and reuse.
In order to fully reuse construction waste, it is necessary to sort the waste. At present, manual sorting, water selection and winnowing are mostly used for sorting construction waste. Although manual sorting is accurate, it is time-consuming, labor-intensive and inefficient. Very low and high labor cost; water separation is sorting according to the specific gravity of the material. With the help of water buoyancy, the low specific gravity floats on the water surface, and the heavy specific gravity sinks into the water and is separated on the conveyor belt to achieve separation. Although water separation The separation effect is good, but a large amount of sewage will be generated, and a large amount of money and energy will be invested in the subsequent treatment of the sewage. The compressed mud cake cannot be reused due to the addition of chemicals, which will pollute the environment and waste resources, which violates the concept of environmental protection, and In the process of water separation, materials with the same specific gravity as water will be suspended in the water, which cannot be effectively separated, and some garbage made of water-absorbing materials cannot be separated accurately; winnowing is to use wind to separate light materials and heavy materials , using the different moving speed and trajectory of light materials and heavy materials under the action of wind to achieve separation, no sewage will be generated to cause secondary pollution, but because air selection is sorted according to the quality of materials, the specific gravity after sorting is small Large-volume materials and small-volume materials are often mixed together, which cannot be effectively separated. After the construction waste is crushed, light materials and heavy materials are mixed together, and heavy materials often hinder the processing of light materials. Therefore, the sorting effect is not ideal by relying solely on wind power; whether it is water separation or winnowing, the existing sorting system conveying equipment and sorting equipment are operated separately and independently, and a large number of conveying equipment is required. The equipment is coordinated, the equipment manufacturing cost and operating cost are high, and the equipment occupies a large area

Method used

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Examples

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Embodiment 1

[0035] Embodiment one, see Figure 1-6 , this embodiment discloses a sorting system for construction waste, including crushing equipment, winnowing equipment 2, and screening equipment, which are connected by conveying equipment. The crushing equipment in this embodiment is a multi-stage crushing jaw crusher 1, and the screening equipment The sub-equipment is a vibrating screen, and the conveying equipment is a belt conveyor. From left to right, multi-stage crushing jaw crusher 1, magnetic separation conveyor 4, winnowing equipment 2, belt conveyor, vibrating screen, and multi-stage crushing are installed in sequence. The discharge port of the jaw crusher 1 extends to the top of the feed end of the magnetic separation conveyor 4 through the guide hopper 15, and the discharge end of the magnetic separation conveyor 4 is located above the feed bin 23 of the winnowing equipment 2, and the winnowing equipment 2 The first belt conveyor 51, the second belt conveyor 52, and the third...

Embodiment 2

[0046] Embodiment two, see Figure 6-9The difference between this embodiment and Embodiment 1 is that the power mechanism of the air separation equipment 2 throwing mechanism is a hydraulic cylinder 29, and the piston rod 291 of the hydraulic cylinder 29 abuts against the lower end of the push rod 27, and the construction waste is transported In the middle, the hydraulic cylinder 29 works, the piston rod 291 of the hydraulic cylinder 29 acts on the ejector rod 27, and the ejector rod 27 drives the idler roller mounting frame 26 to move up and down, so that the idler roller 261 moves up and down and acts on the conveyor belt 21 to move the conveyor belt 21 The garbage is thrown up, and the piston rod 291 is telescopic, so that the push rod 27 rises or moves down to cause the conveyor belt 21 to vibrate, so as to realize the throwing. The fourth belt conveyor 54 is provided, and the feeding end of the fourth belt conveyor 54 is located below the discharge port of the second vibr...

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Abstract

The invention provides a construction waste sorting system. The system involves a crushing device, a wind separation device and a screening device for screening construction waste subjected to wind separation, wherein the crushing device, the wind separation device and the screening device are sequentially arranged and connected through a conveying device, the wind separation device comprises a conveying part for conveying the construction waste and a sorting part for sorting the construction waste in the conveying process of the construction waste, and the sorting part comprises a material throwing mechanism for throwing the construction waste and an air supply mechanism for blowing air to the construction waste. According to the system, the construction waste is sorted through wind separation, so that secondary pollution is avoided, the screening device is arranged behind the wind separation device, effective separation of the construction waste with different particle sizes is achieved, the sorting effect and the sorting speed of the construction waste are improved through cooperation between the wind separation device and the screening device, and the material throwing mechanism is arranged on the wind separation device, so that the sorting effect is further improved through effective wind receiving of the light construction waste.

Description

technical field [0001] The invention belongs to the technical field of waste treatment, relates to the technical field of construction waste treatment, in particular to a construction waste sorting system. Background technique [0002] With the acceleration of urbanization in my country, a large number of buildings are demolished in the process of urban transformation, resulting in a large amount of construction waste. If not handled properly, it will cause environmental pollution and waste of resources. Construction waste usually includes concrete blocks and crushed stones. , brick and tile fragments, steel bars and other heavy waste, as well as light waste such as gypsum boards, wallpaper, plastics, fabrics and other light waste for decoration. The mixing of various wastes will bring a lot of inconvenience to waste disposal and reuse. In order to fully reuse construction waste, it is necessary to sort the waste. At present, manual sorting, water selection and winnowing are ...

Claims

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Application Information

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IPC IPC(8): B07B4/02B07B11/06B07B11/00B07B9/00B09B3/00
CPCB07B4/025B07B11/00B07B11/06B07B4/02B07B7/01B07B9/00B07B11/02B09B3/00Y02W30/58
Inventor 朱兴良
Owner 义乌市铭耀智能科技有限公司
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