CN201442005U - Construction waste comprehensive treatment equipment - Google Patents

Abstract

The utility model discloses comprehensive processing equipment for construction waste, which comprises a first screening device for pre-separating construction waste raw materials; a crushing device for crushing construction waste, and the crushing device is arranged on the first screening device The downstream of the conveying device, the conveying device is used to convey the crushed building aggregate mixture downstream; the magnetic separation device for separating the metal material from the building aggregate mixture, the magnetic separating device is arranged on the conveying device ; A second screening device for screening and separating the construction aggregate mixture, the second screening device is arranged at the end of the conveying device. The utility model can realize the recycling of construction waste, save land and energy, avoid secondary pollution, and protect the environment.

Description

Construction waste comprehensive treatment equipment

technical field

The utility model relates to a processing device for construction waste, in particular to comprehensive processing equipment for construction waste.

Background technique

The main components of construction waste are concrete, bricks, sand, gravel, etc. With the progress of urban construction, construction of new projects, old city renovation and demolition, road reconstruction, etc., will inevitably produce a large amount of construction waste. At present, the amount of construction waste has accounted for 30%-40% of the total amount of urban waste. Most of the construction waste is transported by the construction unit to the suburbs or rural dumps designated by the relevant departments without any treatment. The disposal is open-air stacking. Or landfill, which will consume a large amount of land resources, and at the same time, problems such as dust, dust and sand flying in the process of clearing, transporting and stacking have caused serious environmental pollution. With the strengthening of the protection of cultivated land and environmental protection, the traditional way of dealing with construction waste has become an important issue faced by both construction companies and environmental protection departments.

At present, there is also a method of comprehensive treatment of construction waste, but when this construction waste enters the crusher, it contains a large amount of fine materials that cannot be used as recycled aggregates, which easily increases the workload of the crusher, wastes energy, and is broken It is easy to be dusty and cause environmental pollution.

Utility model content

The technical problem to be solved by the utility model is to provide a comprehensive processing device for construction waste, through which the construction waste can be recycled and reused, without secondary pollution, and the environment is protected.

In order to solve the above technical problems, the technical solution of the utility model is: construction waste comprehensive processing equipment, including a first screening device for pre-separating construction waste raw materials; a crushing device for crushing construction waste, the crushing device is set Downstream of the first screening device; conveying device, the conveying device is used to transport the crushed building aggregate mixture downstream; a magnetic separation device for separating metal materials from the building aggregate mixture, the magnetic A selection device is arranged on the conveying device; a second screening device for screening and separating the construction aggregate mixture is arranged at the end of the conveying device.

As an improvement, the first screening device is a single-stage vibrating screen.

As a further improvement, the second screening device is a multi-stage vibrating screen, and the multi-stage vibrating screen is correspondingly provided with one or more discharge ports.

After adopting the above technical solution, the beneficial effect of the utility model is: firstly, the construction waste is firstly screened through the first screening device, which not only reduces the workload of the crusher, saves energy, improves work efficiency, but also prolongs the crushing time. The service life of the machine; then the construction waste is broken into construction aggregate mixture through the crusher, and then the crushed construction aggregate mixture is sent to the second screening device through the conveying device. The magnetic separation device sorts out the metal materials contained in the construction waste to make them qualified recycled aggregates; finally, the construction aggregate mixture is screened into various recycled aggregates with different particle sizes through the second screening device. The recycled aggregates with particle size are respectively discharged through the outlet of the second screening device; of course, the sand screened out by the bottom layer of the second screening device can be further divided into fine sand and fine soil, recycled aggregate and fine sand It can be used as concrete raw material or used for road paving, and the fine soil can be used as soil for urban greening, which prevents secondary pollution, realizes resource utilization of urban construction waste, and saves land.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a partial schematic diagram of the utility model water curtain processing part;

In the figure: 1. Single-stage vibrating screen; 2. Jaw crusher; 3. Multi-stage vibrating screen; 4. Discharge port; 5. Storage tank; 6. Belt conveying device; 7. Magnetic separator; 8. Vibrating feeder; 9. Curtain; 10. Water curtain nozzle.

Detailed ways

As shown in Figure 1, the construction waste comprehensive treatment equipment includes a first screening device, a feeding device, a crushing device, a conveying device, a magnetic separation device and a second screening device.

Among them, the first screening device is a single-stage vibrating screen 1, through the single-stage vibrating screen 1 firstly filter and separate about 10% of the soil contained in the construction waste, and pre-separate the raw materials of the construction waste to prepare necessary preparations for the next step of crushing. Prepare. On the one hand, the single-stage vibrating screen 1 can reduce dust and soil from entering the crusher, thereby prolonging the service life of the crusher, saving energy and improving work efficiency; on the other hand, it can reduce dust flying during crushing, thereby protecting the environment.

The above-mentioned crushing device is a jaw crusher 2, and the jaw crusher 2 is arranged downstream of the single-stage vibrating screen 1. Larger construction waste can be crushed by the jaw crusher 2, and the particle size of the crushed construction waste is uniform. Of course, the crushing device can also be a hammer crusher. The screening device is set above the ground, and the jaw crusher 2 is set below the ground. This structure can prevent dust from flying during crushing, protect the environment, and has a reasonable structure.

A feeding device is provided between the single-stage vibrating screen 1 and the jaw crusher 2, wherein the feeding device is a vibrating feeder 8, through which the massive and granular buildings can be Garbage is uniformly and continuously fed to the jaw crusher 2 from the single-stage vibrating screen 1, and the blockage of the feed port of the jaw crusher 2 can be avoided. A curtain 9 is provided at the discharge port of the vibrating feeder 8. The preferred curtain 9 is made of iron chains. The curtain 9 vibrates with the vibration of the vibrating feeder 8, thereby effectively dredging the blockage in the vibrating feeder. The large block of construction waste at the discharge port of feeder 8 ensures smooth feeding.

The above-mentioned conveying device is a belt conveying device 6, and the belt conveying device 6 is arranged between the jaw crusher 2 and the multi-stage vibrating screen 3, and the crushed building aggregate mixture can be conveyed downstream through the belt conveying device 6.

Above-mentioned magnetic separation device is magnetic separator 7, and magnetic separator 7 is arranged on belt conveying device 6, and the metal material in the broken building aggregate mixture can be magnetically sucked out by magnetic separator 7 in conveying process, thereby Make it a qualified recycled aggregate. Certainly, a plurality of magnetic separators 7 can be arranged above the belt conveying device 6, so that multiple magnetic separations can be performed during the conveying process.

The above-mentioned second screening device is a multi-stage vibrating screen 3, and the multi-stage vibrating screen 3 is arranged on the end of the belt conveyor 6, and the multi-stage vibrating screen 3 is respectively provided with a discharge port 4 correspondingly, by which the multi-stage vibrating screen 3 can The crushed construction aggregate mixture is screened and separated to obtain recycled aggregates with different particle sizes, and these recycled aggregates enter the storage tank 5 through the discharge port 4 for use; as shown in Figure 2, the multi-stage vibrating screen 3. A water curtain nozzle 10 is provided above the discharge port 4 of the dust separated from the bottom layer, and the dust can be prevented from flying up and the environment can be protected by carrying out water curtain treatment on the dust; the separated sand can be further separated into fine particles. Sand and fine soil, the screened recycled aggregate and fine sand can be used as concrete raw materials or used for paving roads, and the fine soil can be used as soil for urban greening, which realizes the resource utilization of urban construction waste and saves land.

When using, firstly, the construction waste generated in the demolition of buildings, house decoration and road reconstruction is manually sorted and classified from the directly recyclable substances in the construction waste, such as metal materials, wood materials and plastic materials. , directly supply the corresponding company for processing, and then put the selected construction waste into the single-stage vibrating screen 1 to screen out fine soil, and then vibrate through the vibrating feeder 8 into the jaw crusher 2 for crushing , the crushed building aggregate mixture is sent to the multi-stage vibrating screen 3 by the belt conveyor 6, and the building aggregate mixture is magnetically separated by the magnetic separator 7 on the belt conveyor 6 to separate the metal material; finally, The construction aggregate mixture is screened into fine sand and recycled aggregates of different particle sizes through the multi-stage vibrating screen 3, and the recycled aggregates of different particle sizes are discharged through the outlet 4 of the multi-stage vibrating screen 3, and the sand and soil Screened out by the multi-stage vibrating screen 3 on the bottom layer and treated with water curtain through the water curtain nozzle 10 to prevent secondary pollution, automatic production can be realized through the utility model, and construction waste can be recycled without secondary pollution. The environment is protected.

The utility model is not limited to the above-mentioned specific implementation manners. Those skilled in the art proceed from the above-mentioned enlightenment and think of other replacement structures within the protection scope of the utility model.

Claims (10)

1. the building waste comprehensive treatment equipment is characterized in that: comprise

Be used for the building waste raw material is carried out first screening plant of pre-separation;

The breaker that is used for broken building waste, described breaker is arranged on the downstream of described first screening plant;

Conveying device, described conveying device are used for the building aggregate mixture downstream transport after the fragmentation;

Be used for metal material and the concentration equipment that separates of building aggregate mixture, described concentration equipment is arranged on the conveying device;

Be used to screen second screening plant that separates described building aggregate mixture, described second screening plant is arranged on the end of described conveying device.

2. building waste comprehensive treatment equipment as claimed in claim 1 is characterized in that: described first screening plant is the single-stage vibratory sieve.

3. building waste comprehensive treatment equipment as claimed in claim 2 is characterized in that: described second screening plant is a multi-stage oscillating screen.

4. building waste comprehensive treatment equipment as claimed in claim 3 is characterized in that: be provided with charging gear between described first screening plant and the described breaker.

5. building waste comprehensive treatment equipment as claimed in claim 4 is characterized in that: described charging gear is an oscillating feeder.

6. building waste comprehensive treatment equipment as claimed in claim 5 is characterized in that: the discharging opening place of described oscillating feeder is provided with check apron.

7. as the described building waste comprehensive treatment equipment of the arbitrary claim of claim 1 to 6, it is characterized in that: described breaker is a jaw crusher.

8. building waste comprehensive treatment equipment as claimed in claim 7 is characterized in that: described conveying device is the band conveying device.

9. building waste comprehensive treatment equipment as claimed in claim 8 is characterized in that: described concentration equipment is a magnetic separator.

10. building waste comprehensive treatment equipment as claimed in claim 9 is characterized in that: described breaker is arranged on underground.