CN205392684U - Equipment of controlled broken separation metal of abandonment printed circuit board - Google Patents

Abstract

The utility model relates to a device for controlling crushing and separating metals of waste printed circuit boards, which belongs to the technical field of environmental protection and resource comprehensive utilization. The equipment includes crushing equipment, separation equipment, and dust removal equipment; the crushing equipment crushes the coarsely crushed materials through the impact mill (1), and the crushing equipment is also provided with a frame and a casing, and the impact mill (1) is arranged on the machine. On the rotating shaft of the frame; at the place higher than the crushing equipment, there is a separation equipment, which separates the non-metallic materials through the separator (2), and the conical shrinkage section at the bottom of the separator (2) is equipped with an inclined vibrating screen (4 ) to separate the insufficiently dissociated material from the dissociated metal, and the dust removal equipment provides negative pressure to the entire equipment through a high-pressure induced draft fan (8). The equipment can achieve controlled crushing of waste circuit boards, prevent over-crushing, realize effective separation of metals and non-metals, and obtain greater enrichment of recovered metals. And the equipment adopts mechanical means, which is environment-friendly.

Description

A device for controlled crushing and separation of metals from waste printed circuit boards

technical field

The utility model belongs to the technical field of environmental protection and resource comprehensive utilization, and relates to a device for controlling crushing and separating metals of waste printed circuit boards.

Background technique

In recent years, more and more attention has been paid to the recycling of waste electronic products. Countries around the world have enacted a series of laws and regulations to guide the disposal of waste electronic products. As its representative printed circuit board contains many metals, in addition to the common copper, iron, and tin, it also contains pickaxe, strontium, germanium, titanium, etc. Especially for some rare metals and heavy metals, proper handling can reduce the consumption of existing resources, reduce energy consumption, and realize the recycling of resources; improper handling will cause them to flow into nature, causing serious harm to local soil and water sources. Thus affecting the physical and mental health of the local people. At present, the recycling and disposal of e-waste in my country mainly focuses on the recycling of valuable resources such as precious metals. Some universities, enterprises, and military units conduct research on the recycling of circuit boards, but they cannot fully cover them, and the research direction is relatively single. Most of the finely crushed metals are extracted and separated by chemical methods, incineration methods, microbial methods, etc. These methods either cause secondary pollution to the environment, or are costly, and have harsh requirements on the extraction environment.

Utility model content

The purpose of this utility model is to reduce the complexity of the existing waste printed circuit board crushing and sorting equipment, reduce the processing procedures, improve the processing efficiency, and realize the full crushing of waste printed circuit boards. The non-metallic powder directly enters the bag type dust collector The environment is non-polluting, metals are collected and reused after enrichment, and a device suitable for resource utilization and treatment of printed circuit board leftovers and waste printed circuit boards is provided.

The technical scheme adopted by the utility model is: the equipment includes crushing equipment, separation equipment, and dust removal equipment;

The crushing equipment crushes the coarsely crushed materials through the impact mill. The crushing equipment is also equipped with a frame and a casing. , with a feed port, and a discharge port connected to the separation device at the top of the casing;

At the place higher than the crushing equipment, there is a separation equipment. The separation equipment separates non-metallic materials through a separator. The separator is equipped with a feed port connected with the crushing equipment and an air outlet connected with the dust removal equipment. The side wall is opened. There is a secondary air inlet, and the conical shrinkage section at the bottom of the separator is equipped with an inclined vibrating screen. The top of the inclined vibrating screen is connected to the discharge port 1 of the separation equipment through a cone bucket, and the bottom of the inclined vibrating screen is connected to the separation equipment through a cone bucket. The second feed port, the first discharge port of the separation equipment is connected to the feed port of the crushing equipment, and the second discharge port of the separation equipment is the discharge port;

The dust removal equipment is equipped with a bag filter. The inlet end of the bag filter is connected to the separation equipment, and the outlet end is connected to a high-pressure induced draft fan, which provides negative pressure to the entire equipment.

Further, the discharge port 1 of the separation device is provided with a star valve 1, and the discharge port 2 is provided with a star valve 2.

Further, the crushing equipment, separation equipment, and dust removal equipment are all provided with connecting channels.

Compared with the prior art, the utility model has the following significant advantages: 1. The device disclosed in the utility model is a fully closed system as a whole, which can realize the controlled pulverization of waste circuit boards, prevent over-crushing, and realize the Effective separation of metals and greater enrichment of recovered metals. 2. All the devices of this equipment adopt mechanical means, which is environment-friendly and low in cost.

Description of drawings

Fig. 1 is the overall structural representation of the utility model

Among them, 1. Impact mill; 2. Separator; 3. Secondary air inlet; 4. Inclined vibrating screen; 5. Star valve 1; 6. Star valve 2; 7. Bag filter; 8. High pressure induced draft fan.

detailed description

Below is a detailed description of the utility model in conjunction with the accompanying drawings

The crushing equipment crushes the coarsely crushed materials through the impact mill 1. The crushing equipment is also provided with a frame and a casing. The impact mill 1 is arranged on the rotating shaft of the frame, and the casing is higher than the impact On the side wall of the mill 1, there is a feed port, and on the top of the casing, there is a discharge port connected to the separation device;

At the place higher than the crushing equipment, there is a separation equipment, which separates non-metallic materials through the separator 2. The separator 2 is equipped with a feed port connected with the crushing equipment and an air outlet connected with the dust removal equipment. There is a secondary air inlet 3 on the wall, and the conical shrinkage section at the bottom of the separator 2 is provided with an inclined-plane vibrating screen 4. Connect the discharge port 2 of the separation equipment through the cone bucket, the discharge port 1 of the separation device is connected with the feed port of the crushing equipment, and the discharge port 2 of the separation device is the discharge port;

The dust removal equipment is provided with a bag filter 7, the inlet end of the bag filter 7 is connected to the separation device, and the outlet end is connected to a high-pressure induced draft fan 8, and the high-pressure induced draft fan 8 provides negative pressure to the entire device.

The discharge port 1 of the separation device is provided with a star valve 1 5 and the discharge port 2 is provided with a star valve 2 6 .

As shown in Figure 1, a device for controlled crushing and efficient metal separation of waste printed circuit boards. The whole equipment is airtight and under negative pressure. In this embodiment, the coarsely crushed material is finely crushed in the impact mill 1, and the material particles reaching a certain size enter the separation device from the connecting channel under the action of negative pressure in the crushing chamber. The function of the separator 2 is to separate the non-metallic material It is separated through the outlet at the upper end and enters the bag filter 7. The function of the inclined vibrating screen 4 is to separate the undissociated materials from the dissociated metals, and the undissociated materials pass through the cone bucket along the inclined screen. , from the star valve 5 into the impact mill 1 to continue crushing, the dissociated metals can be fed from the star valve 6 through the inclined screen through the cone bucket, and the side wall of the separation equipment has a secondary air inlet 3, which can be adjusted Negative pressure inside the separation device. The high-pressure induced draft fan 8 is connected with the bag filter 7 to provide negative pressure for the whole system.

The above is only the principle framework and process flow of the utility model, so it is not limited by the above-mentioned embodiments, and any modification, equivalent replacement, etc. made without departing from the framework and scope of the utility model are all included in this utility model. within the scope of protection of utility models.

Claims (3)

1. the equipment of the broken apart metal of discarded printed circuit boards controlling, it is characterised in that

This equipment includes disintegrating apparatus, separation equipment, cleaner；

Described disintegrating apparatus passes through impact grinding (1) by small, broken bits for the material of coarse crushing, this disintegrating apparatus is additionally provided with frame, casing, described impact grinding (1) is arranged on the rotating shaft of frame, and on the casing sidewall higher than impact grinding (1), it is provided with charging aperture, is provided with the discharging opening being connected with separation equipment on casing top；

Higher than disintegrating apparatus place, it is provided with separation equipment, non-metallic material is separated by this separation equipment by seperator (2), seperator (2) is provided with the charging aperture being connected with disintegrating apparatus, the air outlet being connected with cleaner, its side-walls has secondary wind air inlet (3), seperator (2) bottom pyramidal contraction section is provided with inclined-plane vibrosieve (4), by boring bucket device for separating connection discharging opening one on the sieve of inclined-plane vibrosieve (4), by boring bucket device for separating connection discharging opening two under the sieve of inclined-plane vibrosieve (4), separation equipment discharging opening one is connected with the charging aperture of disintegrating apparatus, separation equipment discharging opening two is feed opening；

Described cleaner is provided with sack cleaner (7), the entrance point device for separating connection of sack cleaner (7), the port of export connects high-pressure suction fan (8), and provides negative pressure by high-pressure suction fan (8) to whole equipment.

2. the equipment of the broken apart metal of discarded printed circuit boards controlling according to claim 1, it is characterised in that described separation equipment discharging opening one is provided with Starlike valve one (5), discharging opening two is provided with Starlike valve two (6).

3. the equipment of the broken apart metal of discarded printed circuit boards controlling according to claim 1, it is characterised in that described disintegrating apparatus, separation equipment, is equipped with interface channel between cleaner.