CN115854347A - Fly ash device utilizing multiple materials to be melted in coordination - Google Patents
Fly ash device utilizing multiple materials to be melted in coordination Download PDFInfo
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- CN115854347A CN115854347A CN202211464355.7A CN202211464355A CN115854347A CN 115854347 A CN115854347 A CN 115854347A CN 202211464355 A CN202211464355 A CN 202211464355A CN 115854347 A CN115854347 A CN 115854347A
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- fly ash
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Abstract
The invention relates to a device for treating fly ash by utilizing multiple materials to cooperatively melt, which comprises a stirring tank, a ball machine, a high-temperature gasification melting furnace, a centrifugal cooling bin and a waste heat boiler, wherein a discharge port of the stirring tank is connected with a feed port of the ball machine, a preheating feed channel is arranged on the high-temperature gasification melting furnace, a discharge port of the ball machine is connected with the preheating feed channel, a discharge port at the bottom of the high-temperature gasification melting furnace is connected with the centrifugal cooling bin, an oxygen generator is also connected on the high-temperature gasification melting furnace, a fan is connected at the bottom of the centrifugal cooling bin, an air outlet is arranged at the top of the centrifugal cooling bin, a preheating cavity is sleeved outside the preheating feed channel, and the preheating cavity is connected with an air outlet of the centrifugal cooling bin through a heat insulation pipeline. The device processes the fly ash of the hazardous waste into glass fibers, and the glass fibers can be processed into building materials through compression, thereby realizing the recycling of waste.
Description
Technical Field
The invention relates to the technical field of waste utilization, in particular to a fly ash treatment device by utilizing multiple materials to cooperatively melt.
Background
China has a large population base, and the amount of solid waste generated every year is large. With the popularization of the garbage incineration technology in recent years, the solid wastes in China are all effectively treated. And 3% -5% of fly ash can be generated by burning solid wastes, and the fly ash as a dangerous waste is enriched with a large amount of harmful substances such as heavy metals and the like. At present, fly ash is mainly treated by adopting landfill and a cement kiln in a synergistic way, the influence of the fly ash on the environment cannot be fundamentally solved by landfill, and only stabilization treatment is carried out. The cement industry is in a state of excess capacity at present, and the consumption capability of fly ash in the future can be called as cup water salary. In order to adapt to increasing fly ash reserves and realize low-cost harmless treatment of fly ash, a device for treating fly ash by utilizing multiple materials to cooperate with melting is provided.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a device for treating fly ash by utilizing multiple materials to cooperatively melt.
The technical scheme for solving the technical problems is as follows: the utility model provides an utilize multiple material to deal with flying dust device in coordination with melting, includes agitator tank, ball machine, high temperature gasification melting furnace, centrifugal cooling storehouse, exhaust-heat boiler, the discharge gate of agitator tank is connected with the feed inlet of ball machine, be provided with on the high temperature gasification melting furnace and preheat feedstock channel, the discharge gate of ball machine with preheat feedstock channel and connect, the bottom discharge gate department of high temperature gasification melting furnace is connected with centrifugal cooling storehouse, still be connected with the oxygenerator on the high temperature gasification melting furnace, the bottom in centrifugal cooling storehouse is connected with the fan, the top in centrifugal cooling storehouse is provided with the air outlet, the outside cover that preheats feedstock channel is equipped with preheats the chamber, preheat the chamber with connect through heat preservation pipeline between the air outlet in centrifugal cooling storehouse.
Preferably, the above fly ash device is disposed by using multiple materials to cooperatively melt, wherein a centrifuge is arranged inside the centrifugal cooling bin, the centrifuge includes a motor, a rotating shaft is mounted on an output shaft of the motor, an external centrifugal cover is fixed at the upper end of the rotating shaft, an internal centrifugal cover is arranged inside the external centrifugal cover, the tops of the external centrifugal cover and the internal centrifugal cover are both in an open structure, and meshes are arranged on the side walls of the external centrifugal cover and the internal centrifugal cover.
Preferably, the fly ash device for cooperative melting treatment by multiple materials is described above, wherein the mesh aperture of the inner centrifugal cover is larger than that of the outer centrifugal cover.
Preferably, in the above device for disposing fly ash by using multiple materials to melt cooperatively, the preheating chamber and the preheating feed channel are both cylindrical, and a spiral partition is arranged inside the preheating chamber, so that a spiral channel is formed inside the preheating chamber by the spiral partition.
Preferably, the fly ash device is disposed by using multiple materials to perform synergistic melting, wherein a plurality of heat absorbing fins are arranged outside the preheating feed channel.
Preferably, in the above device for treating fly ash by using multiple materials in cooperation with melting, a circle of annular air outlet is arranged around the bottom of the centrifugal cooling bin, and a plurality of through holes are uniformly arranged on the upper side of the annular air outlet.
Preferably, in the above device for disposing fly ash by using multiple materials to melt in coordination, the top of the centrifugal cooling bin is conical, a heat shield is mounted at the top inside the centrifugal cooling bin, and the centrifuge is located at the lower side of an opening of the heat shield.
Preferably, in the above device for disposing fly ash by using multiple materials in a synergistic melting manner, three hoppers are arranged on the upper side of the stirring tank, the three hoppers are respectively used for adding biomass, sludge and fly ash into the stirring tank, and the three materials are 1:1:1 in a mass ratio.
Preferably, the fly ash device is disposed by utilizing multiple materials to melt in coordination, wherein the waste heat boiler is connected with the high-temperature gasification melting furnace, the waste heat boiler is sequentially connected with the smoke purifier and the chimney, and the tail gas of the waste heat boiler is purified by the smoke purifier and then discharged through the chimney.
Preferably, in the above apparatus for disposing fly ash by using multiple materials to melt cooperatively, a heat exchanger is installed between the exhaust-heat boiler and the flue gas purifier, an air inlet of the heat exchanger is communicated with outside air, and an air outlet of the heat exchanger is communicated with the preheating chamber.
The invention has the beneficial effects that: the three materials are stirred and mixed by the stirring tank, so that the heat value of the subsequent compatible materials is improved by the biomass, the water required in the pelletizing process is improved by the sludge, the sludge has higher silicon-calcium content and provides guarantee for the glass phase content of the molten slag, the fly ash has low heat value, the economy of subsequent treatment is improved under the cooperation of the two materials, and the sludge is treated in cooperation. The glass slag is processed into the rock wool board after being melted, the fly ash of the hazardous waste is processed into glass fiber, and the glass fiber can be processed into building materials through compression, so that the waste recycling is realized. In addition, the hot gas in the centrifugal cooling bin is introduced into the preheating cavity to preheat materials, so that the heat energy is fully utilized, the waste heat generated by combustion in the high-temperature gasification melting furnace is utilized by the waste heat boiler, the hot steam generated by the waste heat boiler enters the steam turbine to be used for power generation, the generated electric energy is used as the electric energy consumption required by the oxygen generator, and the surplus hot steam can be supplied to other equipment in a park to use, so that the reasonable utilization and configuration of resources are realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the positional relationship between the preheating feed passage and the preheating chamber;
FIG. 3 is a schematic view of the structure of the centrifugal cooling chamber;
FIG. 4 is a schematic view of the structure of the centrifuge.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a stirring tank, 2, a motor, 3, a hopper, 4, a steam turbine, 5, a waste heat boiler, 6, a smoke purifier, 7, an exhaust pipe, 8, a chimney, 9, a high-temperature gasification melting furnace, 10, an oxygen generator, 11, a centrifugal cooling bin, 12, a preheating feed channel, 13, a ball forming machine, 14, a preheating cavity, 15, a fan, 16, a heat insulation cover, 17, an annular air outlet, 18, a centrifugal machine, 1801, a motor, 1802, a rotating shaft, 1803, an external centrifugal cover, 1804, an internal centrifugal cover, 1805, a support, 19, a spiral partition plate, 20, a heat absorption fin, 21 and a heat exchanger.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2, 3 and 4, the fly ash treatment device using the synergistic melting of multiple materials comprises a stirring tank 1, a pelletizing machine 13, a high-temperature gasification melting furnace 9, a centrifugal cooling bin 11 and a waste heat boiler 5.
The inside of agitator tank 1 is run through there is spiral auger formula pivot, and the upside of agitator tank 1 is provided with three hopper 3, and three hopper 3 is used for adding living beings, mud, flying dust in to agitator tank 1 respectively, and three kinds of materials adopt quality 1:1:1, hermetically conveying the materials to the stirring tank 1 from respective bins through the spiral auger, forming a mixed material through stirring, and performing comprehensive compatibility and cooperative treatment by utilizing the characteristics of high calorific value of biomass, low calorific value of fly ash, high sludge water content and high calcium silicate. The motor 2 is arranged outside the stirring tank 1 and used for providing power for the rotation of the spiral auger. The three materials are compatible to ensure that the heat value of the materials reaches more than 1500 kcal and the water content is less than 45 percent, and the glass phase content of the materials is ensured by testing.
The discharge gate of agitator tank 1 is connected with the feed inlet of balling machine 13, and the inside of balling machine 13 is provided with two compression rollers, and two compression rollers are located the feed inlet downside of balling machine 13, and three kinds of materials are sent into balling machine 13 after 1 stirring of agitator tank in, roll through the compression roller in the balling machine 13 and form three-dimensional oblate cubic material. As the three materials are all powdery particles, after the three materials enter the high-temperature gasification melting furnace 9 to form a stack body, heating points at the bottom are buried, and the shuttle heating of heat energy among the materials is not facilitated. After the materials pass through the pellets, the materials are processed into uniform oblate bodies. An included angle and a gap are formed between the circles, and an exchange space is provided for heat energy circulation and contact of materials and oxygen.
The outside of the high-temperature gasification melting furnace 9 is cylindrical, a preheating feed channel 12 is arranged on the high-temperature gasification melting furnace 9, a discharge port of a pelletizing machine 13 of the preheating feed channel 12 is connected with the preheating feed channel 12, and after the massive materials rolled by the pelletizing machine 13 enter the preheating feed channel 12, the massive materials are conveyed to the high-temperature gasification melting furnace 9 through a conveying mechanism in the preheating feed channel 12. The preheating feeding channel 12 is in an oxygen-free environment and can be filled by introducing non-oxygen gas into the preheating feeding channel 12, a valve is arranged between the preheating feeding channel 12 and the high-temperature gasification melting furnace 9, and the valve is opened during feeding.
The preheating feed channel 12 is externally sleeved with a preheating cavity 14, and hot air can be introduced into the preheating cavity 14 to preheat the block materials in the preheating feed channel 12. The pellet materials are dried in advance by using external heat, so that the subsequent efficient treatment is facilitated, and the materials are preheated to 300-500 ℃ in advance in an anaerobic environment. The heat value and the basic temperature of the unit mass of the material are improved, and the fluctuation of the working condition in the furnace in the feeding process is reduced. The inner bottom of the high-temperature gasification melting furnace 9 is provided with a heating point, the high-temperature gasification melting furnace 9 is also connected with an oxygen generator 10, oxygen produced by the oxygen generator 10 is introduced into the high-temperature gasification melting furnace 9, and the materials are convenient to fully burn. Oxygen produced by the oxygen generator 10 is introduced from the bottom of the side of the high-temperature gasification melting furnace 9 and is directly communicated with the position of a material combustion point. Because the materials after compatibility have a certain heat value, the heat with high energy density is released under the intervention of pure oxygen, and the materials are melted. After the materials are melted, the materials enter a homogenizing channel to ensure that the slag has enough time to be vitrified and co-melted.
The bottom discharge gate department of high temperature gasification melting furnace 9 is connected with centrifugal cooling storehouse 11, the bottom of centrifugal cooling storehouse 11 is connected with fan 15, the inside of centrifugal cooling storehouse 11 is provided with centrifuge 18, the material of the molten state of flowing out from the discharge gate of high temperature gasification melting furnace 9, and flow into in centrifuge 18, centrifuge through the high-speed rotation of centrifuge 18, the centrifugal force of reinforce in this process is shed it all around, form the glass silk, fan 15 is used for cooling down rapidly for the slag that splashes the in-process, make the slag cool off before contacting equipment wall all around, cool down through the forced air cooling fast. The top of centrifugal cooling storehouse 11 is provided with the air outlet, preheats through the hot oil line connection between the air outlet in chamber 14 and the centrifugal cooling storehouse 11, because the exhaust air current of air outlet department still has the waste heat, lets in to preheat chamber 14 and preheats for the material in preheating feed channel 12.
In order to improve the material preheating effect in the preheating feed channel 12 and fully utilize the hot air flow in the preheating cavity 14, the preheating cavity 14 and the preheating feed channel 12 are both arranged to be cylindrical, the spiral partition plate 19 is arranged in the preheating cavity 14, the spiral partition plate 19 enables the inside of the preheating cavity 14 to form a spiral channel, the hot air flow flows along the spiral channel around the outer wall of the preheating feed channel 12, furthermore, a plurality of heat absorption fins 20 are arranged outside the preheating feed channel 12, the heat absorption area of the preheating feed channel 12 is increased, the heat utilization rate is improved, and finally the gas in the preheating cavity 14 is discharged from the exhaust pipe 7.
Centrifuge 18 includes motor 1801, installs pivot 1802 on the output shaft of motor 1801, and the upper end of pivot 1802 is fixed with outside centrifugation cover 1803, and the inside of outside centrifugation cover 1803 is provided with inside centrifugation cover 1804, and the top of outside centrifugation cover 1803, inside centrifugation cover 1804 is open structure, all is provided with the mesh on the lateral wall of outside centrifugation cover 1803, inside centrifugation cover 1804. The mesh aperture of the inner centrifuge shield 1804 is larger than the mesh aperture of the outer centrifuge shield 1803. The interior bottom of outside centrifugal mantle 1803 is fixed with support 1805, the upper end at support 1805 is installed to inside centrifugal mantle 1804, and inside centrifugal mantle 1804 is located the central point of outside centrifugal mantle 1803, the side of inside centrifugal mantle 1804 is the arc surface, the material gets into inside centrifugal mantle 1804 back, earlier by inside centrifugal mantle 1804 under the centrifugal force effect throw away, because inside centrifugal mantle 1804 mesh aperture is greater than outside centrifugal mantle 1803, the material is earlier thrown away and is dispersed on the inner wall of outside centrifugal mantle 1803 through inside centrifugal mantle 1804, later thrown away by outside centrifugal mantle 1803 once more, form the filament.
A circle of annular air outlets 17 are formed in the periphery of the bottom of the centrifugal cooling bin 11, a plurality of through holes are uniformly formed in the upper side of each annular air outlet 17, cold air flows from the outer side of the centrifugal machine 18 from bottom to top, and molten slag in the splashing process is rapidly cooled so that the molten slag is cooled before contacting with walls of surrounding equipment.
The top of centrifugal cooling storehouse 11 is the toper, and thermal shroud 16 is installed at the inside top of centrifugal cooling storehouse 11, and centrifuge 18 is located the opening downside that separates thermal shroud 16, and reducible cold air current causes the influence to the material in centrifuge 18. The cooled glass fiber can be processed into the rock wool board heat-insulating material by compression.
The waste heat boiler 5 is connected with a steam turbine 4 and a high-temperature gasification melting furnace 9, waste heat generated by combustion in the high-temperature gasification melting furnace 9 is utilized by the waste heat boiler 5, hot steam generated by the waste heat boiler 5 enters the steam turbine 4 for power generation, generated electric energy is consumed as electric energy required by the oxygen generator 10, and the surplus electric energy can be supplied to other equipment in a park. The waste heat boiler 5 is sequentially connected with a heat exchanger 21, a smoke purifier 6 and a chimney 8, an air inlet of the heat exchanger 21 is communicated with external air, an air outlet of the heat exchanger 21 is communicated with the preheating cavity 14, waste heat still exists in tail gas of the waste heat boiler 5, and heat energy can be used for heating external cold air and introducing the external cold air into the preheating cavity 14 to preheat materials. The flue gas discharged by the waste heat boiler 5 is discharged through the heat exchanger 21, purified by the flue gas purifier 6 and discharged through the chimney 8.
The heat value of subsequent compatible materials is improved through the biomass, water required in the pelletizing process is improved through the sludge, and the sludge has high silicon-calcium content and provides guarantee for the glass phase content of the slag. The fly ash has low heat value, improves the economy of subsequent treatment under the cooperation of the two materials, and cooperatively treats the sludge. And melting the glass slag, processing the glass slag into glass fibers, and compressing the glass fibers to prepare the rock wool board.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A fly ash device is dealt with in melting in coordination with multiple materials, its characterized in that: including agitator tank (1), balling machine (13), high temperature gasification melting furnace (9), centrifugal cooling storehouse (11), exhaust-heat boiler (5), the discharge gate of agitator tank (1) is connected with the feed inlet of balling machine (13), be provided with on high temperature gasification melting furnace (9) and preheat feedstock channel (12), the discharge gate of balling machine (13) with preheat feedstock channel (12) and connect, the bottom discharge gate department of high temperature gasification melting furnace (9) is connected with centrifugal cooling storehouse (11), still be connected with oxygenerator (10) on high temperature gasification melting furnace (9), the bottom of centrifugal cooling storehouse (11) is connected with fan (15), the top of centrifugal cooling storehouse (11) is provided with the air outlet, the outside cover that preheats feedstock channel (12) is equipped with preheating chamber (14), preheating chamber (14) with connect through heat preservation pipeline between the air outlet of centrifugal cooling storehouse (11).
2. The fly ash device utilizing multiple materials for cooperative melting disposal according to claim 1, wherein: the inside of centrifugation cooling bin (11) is provided with centrifuge (18), centrifuge (18) include motor (1801), install pivot (1802) on the output shaft of motor (1801), the upper end of pivot (1802) is fixed with outside centrifugation cover (1803), the inside of outside centrifugation cover (1803) is provided with inside centrifugation cover (1804), the top of outside centrifugation cover (1803), inside centrifugation cover (1804) is open structure, all be provided with the mesh on the lateral wall of outside centrifugation cover (1803), inside centrifugation cover (1804).
3. The fly ash device using multiple materials for cooperative melting disposal according to claim 2, wherein: the mesh aperture of the inner centrifuge shield (1804) is larger than the mesh aperture of the outer centrifuge shield (1803).
4. The fly ash device utilizing multiple materials for cooperative melting disposal according to claim 1, wherein: the preheating cavity (14) and the preheating feed channel (12) are both cylindrical, a spiral partition plate (19) is arranged inside the preheating cavity (14), and the spiral partition plate (19) enables the inside of the preheating cavity (14) to form a spiral channel.
5. The fly ash device utilizing multiple materials to co-melt disposal according to claim 1, wherein: the preheating feed channel (12) is externally provided with a plurality of heat absorbing fins (20).
6. The fly ash device utilizing multiple materials for cooperative melting disposal according to claim 1, wherein: the centrifugal cooling device is characterized in that a circle of annular air outlet (17) is formed in the periphery of the bottom of the centrifugal cooling bin (11), and a plurality of through holes are uniformly formed in the upper side of the annular air outlet (17).
7. The fly ash device with multiple materials for cooperative melting disposal according to claim 6, wherein: the top of centrifugal cooling storehouse (11) is the toper, separate heat exchanger (16) are installed at the inside top of centrifugal cooling storehouse (11), centrifuge (18) are located separate heat exchanger (16)'s opening downside.
8. The fly ash device utilizing multiple materials for cooperative melting disposal according to claim 1, wherein: the upside of agitator tank (1) is provided with three hopper (3), and three hopper (3) are used for adding living beings, mud, flying dust in agitator tank (1) respectively, and three kinds of materials adopt 1:1:1 in a mass ratio.
9. The fly ash device utilizing multiple materials to co-melt disposal according to claim 1, wherein: exhaust-heat boiler (5) with high temperature gasification melting furnace (9) are connected, exhaust-heat boiler (5) are gone up and have connected gradually gas cleaning ware (6), chimney (8), exhaust-heat boiler (5)'s tail gas is discharged through chimney (8) after gas cleaning ware (6) purify.
10. The fly ash device utilizing multiple materials for cooperative melting disposal according to claim 9, wherein: a heat exchanger (21) is arranged between the waste heat boiler (5) and the smoke purifier (6), an air inlet of the heat exchanger (21) is communicated with outside air, and an air outlet of the heat exchanger (21) is communicated with the preheating cavity (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464355.7A CN115854347A (en) | 2022-11-19 | 2022-11-19 | Fly ash device utilizing multiple materials to be melted in coordination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464355.7A CN115854347A (en) | 2022-11-19 | 2022-11-19 | Fly ash device utilizing multiple materials to be melted in coordination |
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| Publication Number | Publication Date |
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| CN115854347A true CN115854347A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211464355.7A Pending CN115854347A (en) | 2022-11-19 | 2022-11-19 | Fly ash device utilizing multiple materials to be melted in coordination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118310310A (en) * | 2024-03-20 | 2024-07-09 | 奇点低碳智能装备(浙江)有限公司 | High-temperature melting furnace for fly ash and method for treating fly ash by high-temperature melting of fly ash |
-
2022
- 2022-11-19 CN CN202211464355.7A patent/CN115854347A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118310310A (en) * | 2024-03-20 | 2024-07-09 | 奇点低碳智能装备(浙江)有限公司 | High-temperature melting furnace for fly ash and method for treating fly ash by high-temperature melting of fly ash |
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