DE202022105289U1 - System for the production of mineral wool using high-temperature bottom ash and high-temperature fly ash from waste incineration - Google Patents

Abstract

System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration, characterized in that it comprises:
a waste incinerator to which a high-temperature flue gas-fly ash separation component is connected such that high-temperature fumes and dust generated during waste incineration by the waste incineration boiler enter the high-temperature flue gas-fly ash separation component for separation;
a melting and heating device arranged below the incinerator, wherein a slag discharge port connected to the melting and heating device is provided at the bottom of the incinerator, and the high-temperature flue gas fly ash separating component is connected to the melting and heating device connected, so that the high-temperature fly ash obtained after the separation of the high-temperature smoke and dust by the high-temperature flue gas-flyash separation component and the high-temperature slag formed after combustion by the waste incineration boiler are introduced into the melting and heating device for heating and melting and wherein the melting and heating device is connected to a mineral wool manufacturing device.

Description

technical field

The present utility model relates to the field of environmental protection and hazardous waste treatment, in particular to a system for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration.

State of the art

As an effective way to reduce the amount of urban waste, waste incineration has become the main disposal means for the vast majority of cities in China to eliminate waste siege and consume urban waste. However, waste disposal also produces ash products with enriched heavy metals and dioxins. The heavy metals such as Pb and Cr and highly toxic organic carcinogens such as dioxins contained therein cause severe pollution to soil, water and atmosphere and great damage to the local ecological environment and human health. Because the ash residue at the bottom of the boiler of the general waste incineration power plant is washed with water, and the flue gas fly ash also requires wet dedusting or other rapid cooling methods to eliminate dioxins, the temperature of the flue gas at the boiler outlet is lowered to below 300°C, resulting in a large Loss of waste heat in the flue gas and ash residue.

summary

The present utility model aims to solve one of the technical problems in the related technology at least to some extent.

To this end, a purpose of the present utility model is to develop a system for producing mineral wool using high-temperature slag and high-temperature fly ash from waste incineration, using the high temperature in the smelting process to effectively eliminate the carried highly toxic organic compounds such as dioxins, while the Waste heat from the slag of the waste incineration boiler is fully utilized, finally the melted products are processed into high quality fiber products such as mineral wool. The high-temperature smoke and dust generated in waste incineration are separated by a high-temperature flue gas fly ash separator and directly introduced into the melting and heating device, where they are melted to realize full utilization of the heat in the high-temperature smoke and dust.

• einen Abfallverbrennungskessel, mit dem eine Hochtemperatur-Rauchgas-Flugasche-Trennkomponente verbunden ist, so dass der während der Abfallverbrennung durch den Abfallverbrennungskessel erzeugte Hochtemperaturrauch und -staub in die Hochtemperatur-Rauchgas-Flugasche-Trennkomponente zur Trennung eintritt;
• eine Schmelz- und Heizvorrichtung, die unterhalb des Abfallverbrennungskessels angeordnet ist, wobei an dem Boden des Abfallverbrennungskessels eine Schlackenaustragsöffnung vorgesehen ist, die mit der Schmelz- und Heizvorrichtung verbunden ist, und wobei die Hochtemperatur-Rauchgas-Flugasche-Trennkomponente mit der Schmelz- und
• Heizvorrichtung verbunden ist, so dass die nach der Trennung des Hochtemperaturrauchs und -staubs durch die Hochtemperatur-Rauchgas-Flugasche-Trennkomponente erhaltene Hochtemperatur-Flugasche und die nach der Verbrennung durch den Abfallverbrennungskessel gebildete Hochtemperatur-Schlacke in die Schmelz- und Heizvorrichtung zum Erhitzen und Schmelzen eingeführt werden, und wobei die Schmelz- und Heizvorrichtung mit einer Mineralwollen-Herstellungsvorrichtung verbunden ist.

In order to achieve the above purpose, the present utility model provides a system for producing mineral wool using high-temperature slag and high-temperature fly ash from waste incineration, comprising:

• a waste incinerator to which a high-temperature flue gas-fly ash separation component is connected such that high-temperature fumes and dust generated during waste incineration by the waste incineration boiler enter the high-temperature flue gas-fly ash separation component for separation;
• a melting and heating device arranged below the incinerator, wherein a slag discharge port is provided at the bottom of the incinerator, which is connected to the melting and heating device, and wherein the high-temperature flue gas fly ash separating component is connected to the melting and
• Heating device is connected, so that the high-temperature fly ash obtained after the separation of the high-temperature smoke and dust by the high-temperature flue gas fly ash separation component and the high-temperature slag formed after combustion by the waste incineration boiler enter the melting and heating device for heating and melting are introduced, and wherein the melting and heating device is connected to a mineral wool manufacturing device.

Further, the system further comprises a flue gas cooling component connected to the high temperature flue gas fly ash separation component, wherein the flue gas cooling component is connected to a low temperature flue gas dedusting component, and wherein the low temperature flue gas dedusting component is connected to the melting and heating device so that the low-temperature fly ash obtained after separation by the low-temperature flue gas dedusting component is introduced into the melting and heating device for heating and melting.

The system further includes a mixing tank pump connected to each of the low temperature flue gas dedusting component and the high temperature flue gas fly ash separation component, the mixing tank pump being connected to the melting and heating device through a fly ash input line.

Further, the system further comprises an exhaust gas extraction duct, one end of the exhaust gas extraction duct being connected to the melting and heating apparatus and the other end being connected to the high-temperature flue gas fly ash separating component, and an exhaust fan being arranged on the exhaust gas extraction duct.

Furthermore, the melting and heating device comprises a melting and heating box, the outer wall of the melting and heating box being wrapped with an induction coil, and wherein an iron fluid is added to the melting and heating box in order to induction heating between the induction coil and the iron fluid induce.

Further, a discharge opening is provided on the melting and heating box, at which a discharge tube is arranged, the discharge end of the discharge tube being connected to the mineral wool manufacturing apparatus.

Furthermore, the difference value between the distance from the center of the discharge opening to the bottom of the melting and heating box and the diameter of the discharge opening is 200-250 mm.

Furthermore, a discharge opening is provided on the bottom of the melting and heating box, on which a discharge pipe is arranged, with a discharge valve being arranged on the discharge pipe.

The additional aspects and advantages of the present utility model are set forth in part in the following explanation, and some will become apparent from the following explanation or be understood through practice of the present utility model.

character list

• 1 zeigt eine schematische Strukturansicht eines Systems zur Herstellung von Mineralwollen unter Verwendung von Hochtemperaturschlacke und Hochtemperaturflugasche aus der Abfallverbrennung in einem Ausführungsbeispiel des vorliegenden Gebrauchsmusters.

The above and/or additional aspects and advantages of the present utility model will become apparent and easily understood from the explanation of the exemplary embodiments in connection with the following drawings.

• 1 Fig. 12 is a schematic structural view of a system for producing mineral wool using high-temperature slag and high-temperature fly ash from waste incineration in an embodiment of the present utility model.

Detailed description

In the following, the embodiment of the present utility model is explained in more detail. All examples of the embodiment are illustrated in figures, in which the same or similar reference numbers from start to finish stand for the same or similar elements or elements with the same or similar function. The embodiments explained with the figures are exemplary, serve only to explain the present utility model and cannot be understood as a limitation for the present utility model. On the contrary, the embodiment of the present utility model includes all changes, modifications and equivalents that fall within the spirit and scope of the appended claims.

1 Fig. 12 is a schematic structural view of a system for producing mineral wool using high-temperature slag and high-temperature fly ash from waste incineration in an embodiment of the present utility model.

Please refer 1 , a system for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration, comprising a waste incineration boiler 1 and a melting and heating device 2, wherein a high-temperature flue gas-fly ash separation component 3 is connected to the waste incineration boiler 1, so that the during high-temperature smoke and dust generated during waste incineration by the incinerator 1 enters the high-temperature flue gas fly ash separating component 3 for separation, and the melting and heating device 2 is disposed below the incinerator 1, and a slag discharge port 11 is provided at the bottom of the incinerator is provided, which is connected to the melting and heating device 2, and wherein the high-temperature flue gas fly ash separation component 3 is connected to the melting and heating device 2, so that after the separation of the high-temperature smoke and dust by the high-temperature flue gas fly ash separation component 3 obtained high-temperature fly ash and the high-temperature slag formed after combustion by the waste incineration boiler 1 are introduced into the melting and heating device 2 for heating and melting, and the melting and heating device 2 is equipped with a Mineral wool manufacturing device is connected.

It is understood that the high-temperature slag generated by the waste incineration boiler 1 is directly introduced into the melting and heating device 2 for melting and heating, by directly connecting the slag discharge port 11 of the waste incineration boiler 1 with the melting and heating device 2, because the high temperature -Slag contains a certain amount of heat, a rational use of heat is realized, the high temperature smoke and dust generated during the combustion process of the waste incineration boiler 1 is separated by the high temperature flue gas fly ash separation component 3, and the high temperature fly ash thereby obtained can be directly introduced into the melting and heating device 2 for melting and heating to form a to realize rational use of fly ash, in addition, the heat of the high-temperature fly ash can be used.

In some embodiments, the system further comprises a flue gas cooling component 4 connected to the high temperature flue gas fly ash separation component 3, wherein the flue gas cooling component 4 is connected to a low temperature flue gas dedusting component 5, and the low temperature flue gas dedusting component 5 is connected to the melting and Heating device 2 is connected so that the low-temperature fly ash obtained after separation by the low-temperature flue gas dedusting component 5 is introduced into the melting and heating device 2 for heating and melting.

In particular, the high-temperature flue gas and dust generated during the combustion process of the waste incineration boiler 1 are separated by the high-temperature flue gas fly ash separation component 3, the high-temperature flue gas thereby obtained is cooled by the flue gas cooling component 4, and the after cooling and dedusting by the low temperature - Flue gas dedusting component 5 obtained low-temperature fly ash is introduced into the melting and heating device 2 for recycling.

In some exemplary embodiments, the system further comprises a mixing tank pump 6, which is connected to the low-temperature flue gas dedusting component 5 and the high-temperature flue gas-flyash separation component 3, respectively, the mixing tank pump 6 being connected to the melting and heating device 2 through a flyash input line .

It is understood that the low-temperature fly ash in the low-temperature flue gas dedusting component 5 and the high-temperature fly ash in the high-temperature flue gas fly ash separation component 3 are directly introduced into the mixing tank pump 6, and after mixing, pumped into the melting and heating device 2 for heating will.

In some exemplary embodiments, the system further comprises an exhaust gas extraction line 7, one end of the exhaust gas extraction line 7 being connected to the melting and heating device 2 and the other end being connected to the high-temperature flue gas fly ash separating component 3, and the exhaust gas extraction line 7 being connected to an induced draft fan 8 is arranged, which sucks the exhaust gas in the melting and heating device 2 into the high-temperature flue gas-fly ash separating component 3 for treatment to realize complete recycling of particulates.

In some exemplary embodiments, the melting and heating device 2 comprises a melting and heating box 21, the outer wall of the melting and heating box 21 being wrapped with an induction coil, and an iron fluid being added to the melting and heating box 21 in order to achieve induction heating between to induce the induction coil and the iron fluid.

It should be understood that the melting and heating device 2 may further include a slag discharge cylinder 22, with the melting and heating box 21 connected to the bottom of the slag discharge cylinder 22, then the exhaust gas exhaust pipe 7 and the fly ash input pipe can be connected to the slag discharge cylinder 22, respectively and the melting and heating box 21 and the slag discharge cylinder 22 are detachably connected to each other, and the specific connection method may be known in the art and will not be explained in detail here. The slag obtained by the combustion in the waste incineration boiler 1 enters the slag discharge cylinder 22 directly through the slag discharge port 11, then enters the melting and heating box 21 through the slag discharge cylinder 22 for melting and heating, it is practicable to add a certain amount of Add iron fluid (iron powders) into the melting and heating box 21 before the melting and heating box 21 is installed at the bottom of the slag discharge cylinder 22 to induce induction heating between iron powders and the induction coil, one used for introducing the fly ash into the line 3 End is connected to a container, after the iron contained in the slag is melted during the slag melting process, the iron is stratified by the molten slag due to its large weight, and the iron and added iron fluid sink together to the bottom of the melting and heating box 21

In some embodiments, a discharge opening is provided on the melting and heating box 21, at which a discharge tube 23 is arranged, the discharge end of the discharge tube 23 being connected to the mineral wool manufacturing apparatus, the difference value between the distance from the center of the discharge opening to the bottom of the melting and heating box 21 and the diameter of the discharge opening is 200-250 mm.

It is understood that during the initial heating process, by controlling a certain distance between the discharge port and the bottom of the melting and heating box 21 to realize induction heating, the iron fluid at the bottom of the melting and heating box 21 does not flow out it controls that the waste to be burned contains a certain amount of iron, so that the molten slag contains a certain amount of iron fluid to carry out induction heating continuously without needing additional addition of iron powders.

In addition, it should be noted that after the waste incineration boiler is turned off and before it is turned on again, a certain amount of iron fluid and melt will be kept at the bottom of the melting and heating box 21 all the time, moreover, the melting and heating box 21 will be on the heating state all the time kept so that the melt does not solidify, so the work can be carried out directly when the slag is to be melted again.

In some exemplary embodiments, a discharge opening is provided on the bottom of the melting and heating box 21, on which a discharge pipe is arranged, with a discharge valve being arranged on the discharge pipe.

It is understood that through the discharge pipe, the molten slag at the bottom of the melting and heating box 21 is discharged when the melting and heating box 21 is completely unused, and then the melting and heating box 21 is detached from the slag discharge cylinder 22.

In addition, the mechanism for producing mineral wool is an existing equipment of the mineral wool production line, and the production of mineral wool by feeding the molten material into the equipment of the mineral wool production line belongs to the state of the art and will not be explained in detail here.

It should be noted that the terms "the first", "the second", etc. in the explanation of the present utility model are used only for explanation and should not be taken to indicate or imply the relative meaning. Furthermore, unless otherwise defined, “a plurality of” in the explanation of the present utility model means two or more than two.

Each illustration of a process or method in the flowcharts or the processes or methods otherwise described herein may be understood to represent a module, segment, or portion of code that is one or more executable instructions for implementing a particular logical function or a contains steps of the process. Also, the scope of the preferred embodiments of the present utility model includes alternative implementations in which the functions, including the functions involved, may be performed substantially simultaneously or in the reverse order, rather than in the order shown or discussed, and it should be understood by those skilled in the art, to which the embodiments of the present utility model belong.

In the present description, the explanation in connection with the terminology “an exemplary embodiment”, “some exemplary embodiments”, “an example”, “a specific example” or “some examples” refers to that which is explained in connection with the exemplary embodiment or example specific features, structures, materials or features are included in at least one embodiment or example of the present utility model. In the present description, the schematic representations of the above terms do not necessarily refer to the same embodiment or the same example. Moreover, the specific features, structures, materials, or features discussed may be combined in any suitable manner in one or more embodiments or examples.

Although the embodiments of the present utility model are illustrated and explained above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those skilled in the art can make the changes, modifications, substitutions and variations for the embodiments within the scope of the present utility model.

reference list

1

waste incineration boiler

2

Melting and heating device

21

Melting and heating box

22

slag discharge cylinder

23

discharge tube

3

High temperature flue gas fly ash separation component

4

flue gas cooling component

5

Low temperature flue gas dedusting component

6

mixing tank pump

7

exhaust pipe

8th

induced draft fan

Claims (8)

A system for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration, characterized in that it comprises: a waste incineration boiler to which a high-temperature flue gas-fly ash separation component is connected, so that the high-temperature smoke generated during waste incineration by the waste incineration boiler and - dust enters the high-temperature flue gas fly ash separation component for separation; a melting and heating device arranged below the incinerator, wherein a slag discharge port connected to the melting and heating device is provided at the bottom of the incinerator, and the high-temperature flue gas fly ash separating component is connected to the melting and heating device connected, so that the high-temperature fly ash obtained after the separation of the high-temperature smoke and dust by the high-temperature flue gas-flyash separation component and the high-temperature slag formed after combustion by the waste incineration boiler are introduced into the melting and heating device for heating and melting and wherein the melting and heating device is connected to a mineral wool manufacturing device. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 1 , characterized in that it further comprises a flue gas cooling component connected to the high temperature flue gas fly ash separation component, wherein the flue gas cooling component is connected to a low temperature flue gas dedusting component, and wherein the low temperature flue gas dedusting component is connected to the melting and heating device, so that the low-temperature fly ash obtained after the separation by the low-temperature flue gas dedusting component is introduced into the melting and heating device for heating and melting. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 2 , characterized in that it further comprises a mixing tank pump connected to the low temperature flue gas dedusting component and the high temperature flue gas fly ash separation component, respectively, wherein the mixing tank pump is connected to the melting and heating device through a fly ash input line. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 1 , characterized in that it further comprises an exhaust gas extraction duct, wherein one end of the exhaust gas extraction duct is connected to the melting and heating device and the other end is connected to the high-temperature flue gas fly ash separating component, and wherein an induced draft fan is arranged on the exhaust gas extraction duct. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 1 , characterized in that the melting and heating device comprises a melting and heating box, the outer wall of the melting and heating box being wrapped with an induction coil, and wherein an iron fluid is added to the melting and heating box for induction heating between the induction coil and to induce the iron fluid. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 5 , characterized in that a discharge opening is provided on the melting and heating box, at which a discharge tube is arranged, the discharge end of the discharge tube being connected to the mineral wool manufacturing apparatus. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 6 , characterized in that the difference value between the distance from the center of the discharge opening to the bottom of the melting and heating box and the diameter of the discharge opening is 200-250 mm. System for the production of mineral wool using high-temperature slag and high-temperature fly ash from waste incineration claim 6 , characterized in that a discharge opening is provided on the bottom of the melting and heating box, on which a discharge pipe is arranged, wherein a discharge valve is arranged on the discharge pipe.

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