CN214501258U - Smelting treatment waste circuit board feeding device - Google Patents
Smelting treatment waste circuit board feeding device Download PDFInfo
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- CN214501258U CN214501258U CN202120101513.7U CN202120101513U CN214501258U CN 214501258 U CN214501258 U CN 214501258U CN 202120101513 U CN202120101513 U CN 202120101513U CN 214501258 U CN214501258 U CN 214501258U
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Abstract
The utility model provides a feeding device for smelting waste circuit boards, which is arranged above a smelting furnace and comprises a bin body, a Y-shaped pipe, a star-shaped feeder and a compressed gas source, wherein the bin body is provided with a material inlet and a material outlet; the first input end of the Y-shaped pipe is communicated with the discharge port through the star-shaped feeder, the second input end of the Y-shaped pipe is communicated with the compressed gas source, and the output end of the Y-shaped pipe is communicated with the smelting furnace. The utility model discloses a processing apparatus can make the whole high temperature molten pools that get into the smelting furnace of old and useless circuit board crushed aggregates, has avoided the circuit board crushed aggregates to burn on furnace upper portion.
Description
Technical Field
The utility model relates to a waste circuit board handles the recovery field, more specifically says, relates to a smelting handles feeding device of waste circuit board.
Background
The waste circuit board is a mixture of glass fiber reinforced resin and a plurality of metals, belongs to typical electronic waste, and if the waste circuit board is not properly treated, a large amount of useful resources are lost, and the chromium, brominated flame retardant and the like contained in the waste circuit board can cause serious harm to the environment and human health.
Among the waste circuit board treatment methods, the method for treating waste circuit boards and recycling valuable metals by using a top-blown molten pool smelting furnace is an advanced mature technology recommended by the environmental planning administration of the united states. In the process of treating the waste circuit boards by adopting a molten pool smelting technology, a feeding mode is a key ring of the whole smelting, and whether the feeding mode is reasonable or not only determines whether the circuit boards can completely enter a high-temperature molten pool to be fully combusted or not and whether the heat in the smelting process is fully utilized or not, but also influences the equipment load and the service life of a subsequent dust collecting system. The existing feeding mode of treating the waste circuit board by the top-blowing smelting furnace is top feeding, and a feeding port is arranged at the top of the smelting furnace. During production, the circuit board crushed aggregates are added from a feed inlet at the top of the furnace and fall into a molten pool by the self gravity. Although the feeding mode is simple and convenient to operate, the following problems still exist in the actual operation process:
(1) part of the light circuit boards directly enter the flue along with the flue gas in the blanking process, the temperature of the flue is higher after the light circuit boards are combusted in the flue, and sparks of part of the incompletely combusted light circuit boards float to the dust collector, so that a cloth bag of the dust collector is burnt, and normal production is influenced;
(2) part of the light circuit boards are not burnt in a molten pool in a smelting furnace, so that the circuit boards are not burnt completely, harmful substances such as dioxin are easily generated, and great environmental pollution is caused;
(3) because the smoke in the furnace moves upwards, part of the light circuit board is not fed into the molten pool under the drive of the rising smoke and is combusted at the upper part of the hearth, so that the heat released by the combustion of organic matters in the circuit board can not be fully utilized.
SUMMERY OF THE UTILITY MODEL
To overcome the deficiencies in the prior art, one of the objects of the present invention is to solve one or more of the problems of the prior art. For example, one of the purposes of the present invention is to provide a feeding device for smelting waste circuit boards, which solves the problem that the crushed waste circuit boards cannot completely enter the molten pool, resulting in incomplete combustion and damaging the flue.
The utility model provides a feeding device for smelting waste circuit boards, which is arranged above a smelting furnace and comprises a bin body, a Y-shaped pipe, a star-shaped feeder and a compressed gas source, wherein the bin body is provided with a material inlet and a material outlet; the first input end of the Y-shaped pipe is communicated with the discharge port through the star-shaped feeder, the second input end of the Y-shaped pipe is communicated with the compressed gas source, and the output end of the Y-shaped pipe is communicated with the smelting furnace.
The utility model discloses a processing apparatus has the star type dispenser of lock gas effect through setting up when storehouse body lower part can arrange the material, can prevent that the flue gas after the burning in the smelting furnace from rising to get into the storehouse body and cause the condition that light material (the old and useless circuit board crushed aggregates that the quality is light) can't get into the molten bath. After the crushed waste circuit boards enter the output end of the Y-shaped pipe, compressed gas is generated through the configured compressed gas source to provide power, the crushed waste circuit boards containing light materials are driven to enter the molten pool, and the condition that part of the light circuit boards are not driven by rising flue gas to enter the molten pool and are combusted at the upper part of the hearth is avoided.
Compared with the prior art, the beneficial effects of the utility model at least contain at least one of following:
(1) the treatment device of the utility model can make the waste circuit board crushed aggregates completely enter the high-temperature molten pool in the smelting furnace by providing power through the compressed gas, thereby avoiding the combustion of the circuit board crushed aggregates on the upper part of the hearth due to the rising of the flue gas of the molten pool, and realizing the full utilization of the heat emitted by the organic matters in the circuit board after the combustion in the molten pool;
(2) the utility model discloses a processing apparatus will contain the whole high temperature molten pools that spout into of circuit board crushed aggregates of light material, directly takes out to the flue and damage the unfavorable condition of flue by the flue gas when having avoided the light material to feed through traditional furnace roof, can ensure that old and useless circuit board fully burns, has avoided producing the environmental pollution that dioxin etc. caused.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural diagram of a feeding device for smelting waste circuit boards according to an exemplary embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a feeding device for smelting waste circuit boards according to another exemplary embodiment of the present invention.
Description of reference numerals:
1-smelting furnace, 10-molten bath, 2-feeding device, 20-bin body, 21-Y type pipe, 22-star type feeder, 23-compressed gas source, 24-heavy bin, 25-blower, 26-heavy material conduit, 27-raw material conveying mechanism, 28-first regulating valve, 29-dust remover, 30-second regulating valve, 201-material inlet, 202-discharge port, 210-first input end, 211-second input end, 212-output end, 240-raw material inlet, 241-heavy material outlet and 242-air inlet.
Detailed Description
Hereinafter, a feeding device for smelting waste circuit boards according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a smelting handles feeding device of old and useless circuit board. In an exemplary embodiment of the feeding device for smelting waste circuit boards of the present invention, as shown in fig. 1, the feeding device 2 is disposed in the upper portion of the smelting furnace 1. The feeding device 2 may comprise a bin 20, a Y-tube 21, a star feeder 22 and a source of compressed gas 23.
The bin body 20 may have a material inlet 201 and a material outlet 202 formed in the walls thereof. A material inlet 201 may be provided at an upper portion of the cartridge body 20. The discharge port 202 may be formed at the bottom of the bin body 20, and the crushed waste circuit boards are discharged from the discharge port 202.
The Y-tube 21 is provided with two input ends and one output end. The first input of the Y-pipe 21 communicates with the discharge 202 through the star feeder 22. The second input 211 of the Y-tube 21 is in communication with a source of compressed gas 23. The output end 212 of the Y-shaped pipe 21 is communicated with the smelting furnace 1.
In the above, the waste circuit board crushed aggregates enter the bin body 20 from the material inlet 201, are discharged through the discharge port 202 and then enter the output end 212 of the Y-shaped pipe 21 through the star-shaped feeder 22, and meanwhile, after the compressed gas generated by the compressed gas source 23 enters the Y-shaped pipe from the second input end 211 of the Y-shaped pipe 21, the waste circuit board crushed aggregates are all sprayed into the molten pool 10 in the smelting furnace 1 under the driving of the compressed gas. In the traditional furnace top adding mode, because the high-temperature flue gas generated in the smelting furnace 1 moves upwards, the light materials contained in the broken materials of the waste circuit board can not enter a molten pool under the driving of the flue gas, and through the arrangement of the star-shaped feeder 22 and the compressed gas source 23, on one hand, the star-shaped feeder 22 can prevent the flue gas generated by the smelting furnace 1 from directly entering the bin body 20; on the other hand, when the light material can not enter the molten pool in the hearth due to the smoke generated by the smelting furnace 1, the generated compressed gas provides power to drive the light material to enter the molten pool 10, so that the condition that the light material in the bin body 20 driven by the smoke can not fall is avoided, and meanwhile, the light material enters the flue along with the smoke and the burning of the light material is not complete.
Further, as shown in fig. 2, a heavy bunker 24 and a blower 25 are also included. The heavy silo 24 may be in communication with the silo body 20 through a feed inlet 201. The bin wall of the heavy bin 24 is provided with a raw material inlet 240, an air inlet 242 and a heavy material outlet 241. The raw material inlet 240 is used for the waste circuit board crushed aggregates to enter the heavy weight bin 24, and can be arranged at the upper part or the top of the heavy weight bin 24. The air inlet 242 receives the air flow generated by the blower 25. In the vertical direction, the height of the air inlet 242 needs to be lower than that of the raw material inlet 240, and the air inlet 242 is located at a lower position so that the air flow entering from the air inlet 242 can contact the waste circuit board waste entering from the raw material inlet 240. The heavy material outlet 241 can be arranged at the bottom of the heavy material bin 24, and the heavy material is conveniently discharged from the heavy material outlet 241 after being subjected to free falling movement by the gravity of the heavy material outlet.
The blower 25 communicates with the heavy bunker 24 through an air inlet 242. I.e., the air generated by the blower 25 enters the heavy-weight bin 24 through the air inlet 242. The air supply amount of the air blower 25 can be adjusted according to the actual mass distribution of the waste circuit board crushed aggregates, and can be an empirical value or a given value.
One end of the heavy material guide pipe 26 is communicated with the heavy material outlet 241, and the other end extends to the interior of the smelting furnace 1.
After the waste circuit board crushed aggregates enter the heavy bin 24 from the raw material inlet 240, the waste circuit board crushed aggregates falling down are winnowed by the arranged blower 25. The heavy material stays in the heavy bin 24 and enters the smelting furnace 1 from the heavy material outlet 241 by means of self gravity, and the light material enters the output end 212 from the first input end 210 of the Y-shaped pipe 21 after being blown into the bin body 20 by airflow, and is driven by compressed gas to be sprayed into the molten pool 10 in the smelting furnace 1.
Further, an air inlet 242 may be disposed opposite to the material inlet 201, and the opposite disposition facilitates the air flow blown from the air inlet 242 to blow the light material from the heavy material bin 24 into the bin body 20.
Further, the heavy material bin 24 and the material inlet 201 can be communicated through a pipeline.
Further, the charging device 2 may further include a raw material transfer mechanism 27 provided at the raw material inlet 240. The material transfer mechanism 27 may be a transfer mechanism consisting of a conveyor belt.
Further, the charging device 2 may further comprise a dust collector 29 disposed at the top of the cartridge body 20. The powder contained in the scrap circuit board contains part of the light powder and in the flue gas generated by the molten bath, and part of the powder is absorbed by the dust collector 29 due to the existence of the air flow. The dust collector 29 filters the absorbed powder and then falls into the light bin, and the compressed gas generated by the arranged compressed gas source 23 can also spray the powder into the molten pool 10 in the smelting furnace 1 from the light bin.
Further, the charging device 2 may also comprise a first regulating valve 28 arranged at the heavy charge outlet 241. The first adjustment valve 28 can adjust the flow of heavy material out of the heavy material bin 24 and can open and close the heavy material guiding pipe 26. The first regulating valve 28 may be driven by any one of manual, electric, or pneumatic means.
Further, the charging device 2 may also include a second regulating valve 30 provided at the discharge port 202. The second regulating valve 30 can regulate the flow rate of the light material discharged from the bin body 20 and can open and close the discharge port 202. The second regulating valve 30 may be driven by any one of manual, electric, or pneumatic means.
Further, in order to prevent the high temperature in the smelting furnace 1 from damaging the pipeline, the output end 212 of the Y-shaped pipe and the part of the heavy material conduit 26 extending into the smelting furnace 1 are both high temperature resistant pipes.
Further, the lower part of the heavy bin 24 or the bin body 20 is tapered with a diameter gradually reduced from top to bottom in a radial direction; or the heavy bin 24 and the lower part of the bin body 20 are tapered from top to bottom in radial diameter. The conical shape is convenient for discharging heavy materials from the heavy bin 24 and discharging light materials from the bin body 20.
Further, the compressed gas may be compressed air or compressed nitrogen.
Further, a flexible baffle made of flexible material is disposed at the raw material inlet 240. One end of the flexible baffle can be movably connected on the bin wall of the heavy bin 24, and the other end is arranged on the transmission belt. The flexible baffles allow the scrap circuit board material to enter the heavy bin 24 while preventing the egress of gases from the heavy bin.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A feeding device for smelting waste circuit boards is characterized by being arranged above a smelting furnace (1) and comprising a bin body (20), a Y-shaped pipe (21), a star-shaped feeder (22) and a compressed gas source (23), wherein,
the bin body (20) is provided with a material inlet (201) and a discharge port (202);
the first input end (210) of the Y-shaped pipe (21) is communicated with the discharge port (202) through the star-shaped feeder (22), the second input end (211) is communicated with the compressed gas source (23), and the output end (212) is communicated with the smelting furnace (1).
2. The charging device for smelting waste circuit boards as claimed in claim 1, further comprising a heavy weight bin (24) and a blower (25), wherein the heavy weight bin (24) is communicated with the bin body (20) through a material inlet (201), the heavy weight bin (24) is provided with a raw material inlet (240), a heavy material outlet (241) and an air inlet (242), the heavy material outlet (241) is communicated with the smelting furnace (1) through a heavy material conduit (26), the blower (25) is communicated with the air inlet (242), and the position of the air inlet (242) in the vertical direction is lower than that of the raw material inlet (240).
3. The charging device for smelting waste circuit boards as claimed in claim 2, wherein the air inlet (242) is arranged opposite to the material inlet (201).
4. The charging device for smelting treatment of waste circuit boards as claimed in claim 2 or 3, further comprising a raw material delivery mechanism (27) arranged at the raw material inlet (240).
5. The charging installation for the smelting treatment of waste circuit boards according to claim 2 or 3, characterized in that it further comprises a first regulating valve (28) arranged at the heavy charge outlet (241).
6. The charging device for smelting waste circuit boards as claimed in claim 1, 2 or 3, further comprising a dust collector (29) arranged on top of the bin body (20).
7. The charging installation for the smelting treatment of old and useless circuit boards as claimed in claim 1, 2 or 3, characterized by further comprising a second regulating valve (30) arranged at the discharge outlet (202).
8. The charging device for smelting waste circuit boards as claimed in claim 2 or 3, wherein the output end (212) of the Y-shaped pipe and the part of the heavy material conduit (26) extending to the interior of the smelting furnace (1) are both high temperature resistant pipes.
9. The charging device for smelting waste circuit boards as claimed in claim 2 or 3, wherein the lower part of the bin body (20) and/or the heavy bin (24) is of a conical structure with a diameter gradually reduced from top to bottom in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101513.7U CN214501258U (en) | 2021-01-14 | 2021-01-14 | Smelting treatment waste circuit board feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101513.7U CN214501258U (en) | 2021-01-14 | 2021-01-14 | Smelting treatment waste circuit board feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214501258U true CN214501258U (en) | 2021-10-26 |
Family
ID=78216022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120101513.7U Active CN214501258U (en) | 2021-01-14 | 2021-01-14 | Smelting treatment waste circuit board feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214501258U (en) |
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2021
- 2021-01-14 CN CN202120101513.7U patent/CN214501258U/en active Active
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