CN211345363U - Water-cooling slag discharging machine for recycling heat of dangerous waste slag - Google Patents
Water-cooling slag discharging machine for recycling heat of dangerous waste slag Download PDFInfo
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- CN211345363U CN211345363U CN201921377826.4U CN201921377826U CN211345363U CN 211345363 U CN211345363 U CN 211345363U CN 201921377826 U CN201921377826 U CN 201921377826U CN 211345363 U CN211345363 U CN 211345363U
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Abstract
The utility model provides a retrieve thermal water-cooling mucking machine of useless slag of danger, include: the top of the slag falling channel is communicated with an overflow slag outlet; the water tank is communicated with the bottom of the slag falling channel and used for water-cooling falling slag in the slag falling channel to form a glass body and simultaneously generating steam in the slag falling channel; the steam-water heat exchanger is used for receiving the steam in the slag falling channel so as to exchange heat between the steam and cooling water; and the slag discharging device is arranged at the tail end of the water tank and used for discharging the glass body, and water quenching water enters the water-cooling slag discharging machine through a slag discharging hole of the slag discharging device. The utility model provides a retrieve thermal water-cooling mucking machine of useless slag of danger can solve the useless melting process middle slag heat waste's of danger problem to improve the cooling rate of slag, effectively strengthen the stability of vitreous body product, greatly improved the operational environment that slags tap simultaneously.
Description
Technical Field
The utility model relates to a waste treatment technical field, specifically, the utility model relates to a retrieve thermal water-cooling mucking machine of useless slag of danger.
Background
At present, the treatment mode of inorganic hazardous wastes such as hazardous waste (hazardous waste) bottom slag, waste incineration fly ash and the like is gradually developed from landfill to molten vitrifying direction, and the inorganic hazardous wastes are subjected to molten vitrifying to realize harmless treatment, reduction and recycling of the hazardous wastes, so that the method is a promising technical route at present. A large amount of slag is generated in the dangerous waste melting process, the temperature of the slag reaches about 1300 ℃, and a large amount of heat is released in the process that the slag is rapidly cooled to form a vitreous body.
The existing slag cooling methods have two types: 1. cooling the air; 2. and (5) water quenching and cooling. The use of air cooling has the following drawbacks: 1. the heat released in the slag cooling process cannot be utilized; 2. the cooling rate is slow, and the quality of the formed glass body cannot be guaranteed; 3. the operating environment is severe. The water quenching cooling adopts a water-cooled slag tapping machine to vitrify slag, but the existing water-cooled slag tapping machine has the following defects: 1. the water quenching water is directly cooled by using cooling water, and the temperature of the heated cooling water is low, so that the heating requirement cannot be met; 2. cooling of the water vapor generated in the tapping machine is not considered, resulting in the water vapor flowing out from the gap and deteriorating the operating environment.
Therefore, a new water-cooled slag tapping machine needs to be provided to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
To prior art not enough, the utility model provides a retrieve thermal water-cooling mucking machine of useless slag of danger, water-cooling mucking machine includes:
the top of the slag falling channel is communicated with an overflow slag outlet;
the water tank is communicated with the bottom of the slag falling channel and used for water-cooling falling slag in the slag falling channel to form a glass body and simultaneously generating steam in the slag falling channel;
the steam-water heat exchanger is used for receiving the steam in the slag falling channel so as to exchange heat between the steam and cooling water; and
set up in the terminal slag discharging device of basin for discharge the vitreous body, the water quenching water via slag notch of slag discharging device gets into the water-cooling mucking machine.
In one embodiment, the water-cooled slag extractor further comprises:
the high-temperature water pump is used for pressurizing condensed water generated after the steam exchanges heat in the steam-water heat exchanger; and
and the atomizing spray head is used for atomizing the pressurized condensed water to form atomized liquid, and spraying the atomized liquid into the slag falling channel to preliminarily cool the slag.
In one embodiment, the water-cooled slag tapping machine further comprises a safety valve arranged on the slag falling channel.
In one embodiment, the tapping means comprises a screw conveyor.
In one embodiment, the screw conveyor is arranged obliquely upwards and the height of the bottom of the tapping device is lower than the height of the end of the water bath.
In one embodiment, the temperature of the cooling water after heat exchange is increased to 70 ℃ to 80 ℃.
The utility model provides a retrieve thermal water-cooling mucking machine of useless slag of danger can solve the useless melting process middle slag heat waste's of danger problem to improve the cooling rate of slag, effectively strengthen the stability of vitreous body product, greatly improved the operational environment that slags tap simultaneously.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles and devices of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a schematic structural diagram of a water-cooling slag extractor for recovering heat of hazardous waste slag according to an embodiment of the present invention.
Reference numerals:
100: overflow slag hole 101: slag falling channel
102: the steam-water heat exchanger 103: atomizing spray head
104: high-temperature water pump 105: safety valve
106: water tank 107: slag discharging device
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to thoroughly understand the present invention, detailed steps will be provided in the following description in order to explain the water-cooled slag extractor for recovering heat from hazardous waste slag provided by the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The inorganic hazardous waste is subjected to molten vitrifying, so that harmless treatment, reduction and recycling of the hazardous waste can be realized, and the method is a promising technical route at present. The water quenching cooling adopts a water-cooled slag tapping machine to vitrify slag, but the existing water-cooled slag tapping machine has the following defects:
1. the water quenching water is directly cooled by using cooling water, and the temperature of the heated cooling water is low, so that the heating requirement cannot be met;
2. cooling of the water vapor generated in the tapping machine is not considered, resulting in the water vapor flowing out from the gap and deteriorating the operating environment.
To the problem, the embodiment of the utility model provides a retrieve thermal water-cooling mucking machine of dangerous useless slag, it utilizes steam heat exchanger to retrieve the heat that produces vapor in the slag cooling process, realizes the thermal recycle of slag, improves the cooling rate of slag, and then strengthens the stability of vitreous body product, effectively improves the operational environment of slagging tap simultaneously.
In order to thoroughly understand the present invention, a detailed structure will be provided in the following description in order to explain the technical solution provided by the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
The water-cooled slag extractor for recovering the heat of the hazardous waste slag according to the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the water-cooled slag extractor for recovering the heat of the hazardous waste slag according to an embodiment of the present invention includes: the top of the slag falling channel 101 is communicated with an overflow slag outlet; a water tank 106 communicated with the bottom of the slag falling channel 101, wherein the water tank 106 is used for water-cooling the falling slag in the slag falling channel 101 to form granular glass bodies and simultaneously generating steam in the slag falling channel 101; the steam-water heat exchanger 102 is used for receiving the steam in the slag falling channel 101 and exchanging heat between the steam and cooling water; and a slag discharging device 107 arranged at the tail end of the water tank 106 and used for discharging the glass body, wherein water quenching water enters the water-cooling slag discharging machine through a slag outlet of the slag discharging device 107.
As described above, the water-cooled slag tapping machine of the embodiment uses the steam-water heat exchanger 102 to cool the high-temperature steam generated in the slag water-cooling process, so that the cooling water is heated, the cooling water for heating and heat supply is generated, and meanwhile, the high-temperature steam on the surface can overflow; the inlet of the water quenching water is arranged at the slag outlet of the slag discharging device 107, so that the glass body generated by slag water cooling and the water quenching water form reverse flow in the slag discharging machine, the heat released in the slag cooling process is fully recovered, and the slag discharging temperature of the glass body is effectively reduced.
Specifically, with continued reference to FIG. 1, the slag chute 101 is vertically disposed with its top end communicating with the overflow slag notch 100. High-temperature molten slag generated by the incineration of the hazardous waste enters the slag falling channel 101 through the overflow slag outlet 100 and falls. The bottom of the slag falling channel 101 is communicated with an L-shaped water tank 106, high-temperature slag enters the water tank 106 and then is rapidly crushed and cooled, and particles are not arranged according to a certain rule when the melt is quenched, so that granular glass bodies with randomly arranged particles are formed. The high-temperature slag releases a large amount of heat during cooling, so that water quenching water in the water tank 106 is rapidly evaporated, and a large amount of water vapor is generated in the slag falling passage 101.
The L-shaped water tank 106 is a bent structure, one part of which is vertically upward communicated with the slag falling channel 101, and the other part of which is approximately horizontal and slightly inclined downward, so that the glass body moves towards the tail end of the water tank 106. The end of the water tank 106 is provided with a tapping device 107 for discharging the glass.
In this embodiment, the slag discharging device 107 is a screw conveyor, which discharges slag by screw conveying. The screw conveyor is arranged obliquely upwards, the height of the bottom of the screw conveyor is lower than that of the tail end of the water tank 106, and the height difference between the screw conveyor and the water tank is favorable for gathering the glass bodies at the bottom of the screw conveyor.
Slag notch department of slag discharging device 107 is the water quenching water entry, that is to say, the water quenching water gets into the mucking machine via the slag notch, effectively reduces the temperature of water quenching in the mucking machine, can also reduce the temperature of slag notch department simultaneously, prevents that slag notch department from producing a large amount of vapor and worsening operation environment. And the water quenching water is added at the slag discharging end, so that the glass body and the water quenching water form reverse flow in the slag discharging machine, the heat released in the slag cooling process is fully recovered, and the slag discharging temperature of the glass body is effectively reduced.
As described above, when slag is cooled by water, a large amount of steam is generated in the slag falling passage 101, and the steam of high temperature enters the steam-water heat exchanger 102 and performs countercurrent heat exchange with cooling water, that is, the flow direction of the cooling water is opposite to the flow direction of the steam. The temperature of the cooling water after heat exchange can reach 70-80 ℃, which is enough to meet the requirements of heating, heat supply and the like, thereby fully utilizing the waste heat and saving the energy. Meanwhile, the high-temperature steam is cooled, so that the water vapor can be prevented from overflowing from the gap, and the operating environment is effectively improved.
High-temperature water vapor is condensed to form condensate water after heat exchange in the steam-water heat exchanger 102, the condensate water enters the high-temperature water pump 104 to be pressurized, then atomized liquid is formed through the atomizing nozzle 103 and sprayed into the slag falling channel 101, and high-temperature slag in the slag falling channel 101 is preliminarily cooled to fully utilize water resources. Illustratively, multiple layers of atomizing nozzles 103 may be arranged at different heights within the slag chute 101 to increase the efficiency of the primary cooling.
In one embodiment, a safety valve 105 is further disposed on the slag falling channel 101. The safety valve 105 is normally in a normally closed state, when the pressure in the slag falling channel 101 exceeds a specified value, the safety valve 105 is opened, and a part of gas/fluid in the slag falling channel 101 is discharged out of the channel, so that damage caused by large-amplitude pressure fluctuation is avoided, and accidents of the water-cooled slag discharging machine caused by overhigh pressure are avoided.
The utility model discloses retrieve thermal water-cooling mucking machine of useless slag of danger has following advantage:
1. cooling high-temperature steam generated in the slag water cooling process to generate cooling water for heating and heat supply;
2. the glass body and water quenching water form reverse flow in the slag discharging machine, heat released in the slag cooling process is fully recovered, and the slag discharging temperature of the glass body is effectively reduced;
3. the cooling water generated by cooling the high-temperature steam is used for primarily cooling the slag, so that water resources are fully utilized;
4. the safety valve is arranged on the slag falling channel, so that the safety of the slag discharging machine is improved.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a retrieve hot water-cooled mucking machine of useless slag of danger which characterized in that, water-cooled mucking machine includes:
the top of the slag falling channel is communicated with an overflow slag outlet;
the water tank is communicated with the bottom of the slag falling channel and used for water-cooling falling slag in the slag falling channel to form a glass body and simultaneously generating steam in the slag falling channel;
the steam-water heat exchanger is used for receiving the steam in the slag falling channel so as to exchange heat between the steam and cooling water; and
set up in the terminal slag discharging device of basin for discharge the vitreous body, the water quenching water via slag notch of slag discharging device gets into the water-cooling mucking machine.
2. The water-cooled slag tapping machine for recovering heat of dangerous waste slag according to claim 1, further comprising:
the high-temperature water pump is used for pressurizing condensed water generated after the steam exchanges heat in the steam-water heat exchanger; and
and the atomizing spray head is used for atomizing the pressurized condensed water to form atomized liquid, and spraying the atomized liquid into the slag falling channel to preliminarily cool the slag.
3. The water-cooled slag tapping machine for recovering heat of dangerous waste slag according to claim 1, further comprising a safety valve disposed on the slag falling channel.
4. The water-cooled slag tapping machine for recovering heat from hazardous waste slag according to claim 1, wherein the slag tapping means comprises a screw conveyor.
5. The water-cooled slag tapping machine for recovering heat from dangerous waste slag according to claim 4, wherein said screw conveyor is disposed obliquely upward, and the height of the bottom of said tapping device is lower than the height of the end of said water tank.
6. The water-cooled slag extractor for recovering heat of dangerous waste slag according to claim 1, wherein the temperature of the cooling water after heat exchange is raised to 70-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921377826.4U CN211345363U (en) | 2019-08-22 | 2019-08-22 | Water-cooling slag discharging machine for recycling heat of dangerous waste slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921377826.4U CN211345363U (en) | 2019-08-22 | 2019-08-22 | Water-cooling slag discharging machine for recycling heat of dangerous waste slag |
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| Publication Number | Publication Date |
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| CN211345363U true CN211345363U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921377826.4U Active CN211345363U (en) | 2019-08-22 | 2019-08-22 | Water-cooling slag discharging machine for recycling heat of dangerous waste slag |
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| CN (1) | CN211345363U (en) |
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