CN211823800U - Fly ash melting device - Google Patents
Fly ash melting device Download PDFInfo
- Publication number
- CN211823800U CN211823800U CN202020092535.7U CN202020092535U CN211823800U CN 211823800 U CN211823800 U CN 211823800U CN 202020092535 U CN202020092535 U CN 202020092535U CN 211823800 U CN211823800 U CN 211823800U
- Authority
- CN
- China
- Prior art keywords
- furnace body
- fly ash
- melting
- fixedly arranged
- feeding pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a fly ash melting device, belonging to the field of fly ash melting, comprising a melting furnace body provided with an inner cavity, a joule heat generating device and a control device which are fixedly arranged on the melting furnace body, wherein the melting furnace body is also provided with a saltpeter water overflow port, a feeding device and a material channel discharging device; the feeding device comprises a main feeding pipe extending to the outside from an inner cavity of the smelting furnace body, a plurality of material distributing pipes communicated with the main feeding pipe, a driving device for driving the main feeding pipe to rotate, and a feeding machine with one end positioned above the main feeding pipe and the other end connected with the charging bucket; and a liquid level meter, a thermometer and an auxiliary electrode which are used for controlling the feeding amount of the batch feeder are fixedly arranged on the material channel material liquid discharge device. The utility model discloses can not produce secondary pollution at flying dust melting in-process, the leakproofness is good, spills the material even, can carry out the raw materials supply according to this internal liquid level of smelting pot is automatic, with the electricity melting flying dust, the heat waste is little, and is efficient, and heavy metal easily discharges, is applicable to the melting of all flying dusts.
Description
Technical Field
The utility model belongs to flying dust melting field relates to a fused device, specifically speaking is a flying dust melting device.
Background
In recent years, the scale of the waste incineration power generation industry in China is continuously enlarged, harmful substances such as heavy metals with low boiling points, dioxin, furan and the like are entrained in flue gas in the waste incineration power generation process, most of the harmful substances are adsorbed by adopting an activated carbon spraying method at present, and the adsorbed activated carbon and solid particles entrained in the flue gas are captured by a bag-type dust collector or other flue gas purification equipment to form waste incineration fly ash. Harmful substances in the fly ash, such as heavy metal, dioxin, furan and the like, have great harm to the environment.
In the prior art, the best method for melting fly ash is a plasma fly ash melting method. A graphite rod electrode is arranged in a furnace, plasma is directly generated in the furnace through the discharge of the electrode, and the fly ash is heated and melted by the plasma. However, disadvantages of this melting process are: the melting heat efficiency is not high, the electrode consumption is fast, and the temperature distribution in the furnace is high and low. The fly ash contains a large amount of chloride and sulfate, the chloride and the fly ash form nitrate water after the fly ash is melted, and the upper part in the smelting furnace is locally high-temperature to promote the nitrate water with low boiling point in the slag to volatilize to form secondary fly ash, thereby polluting the environment; the lower part in the smelting furnace has low temperature, so that the fluidity of bottom slag is poor, and a slag outlet is easy to block. Meanwhile, the furnace must have an opening to put the fly ash into the furnace, but the opening cannot be sealed in time, and harmful substances volatilize into the air to cause secondary pollution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a flying ash melting device is to be provided to reach and throw the material even, the dog-house leakproofness is strong, can not cause secondary pollution's purpose.
In order to achieve the above object, the utility model adopts the following technical scheme: a fly ash melting device comprises a melting furnace body provided with an inner cavity, a Joule heat generating device and a control device which are fixedly arranged on the melting furnace body, wherein the melting furnace body is also provided with a saltpeter water overflow port, a feeding device and a material channel discharging device for flowing out of fly ash melting melt;
the feeding device comprises a main feeding pipe extending to the outside from the inner cavity of the smelting furnace body, a plurality of material distributing pipes communicated with the main feeding pipe, a driving device for driving the main feeding pipe to rotate, and a feeding machine with one end positioned above the main feeding pipe and the other end connected with the charging bucket, wherein the material distributing pipes are arranged in the inner cavity of the smelting furnace body;
a liquid level meter, a thermometer and an auxiliary electrode which are used for controlling the feeding amount of the feeder are fixedly arranged on the material channel discharging device;
the driving device, the joule heat generating device, the auxiliary electrode, the thermometer, the feeder, the liquid level meter and the control device form a closed loop.
As to the utility model limit: the smelting furnace is characterized in that the bottom of the smelting furnace body is a cone, a bottom material liquid outlet is formed in the cone at the bottom, a molybdenum discharger is fixedly arranged on the bottom material liquid outlet, a temperature control electrode is arranged in the discharger, and a nitrogen generating device used for introducing nitrogen into the discharger is fixedly arranged outside the discharger.
As a further limitation to the present invention: the interior of the furnace body is made of high-temperature resistant materials, and the exterior of the furnace body is made of heat-insulating materials.
As another limitation to the present invention: and silicon-carbon rods for controlling the temperature to be constant are fixedly arranged in the saltpeter water overflow port and the material channel discharge device.
As a further limitation to the present invention: the one end that main inlet pipe and batcher are connected sets firmly hourglass hopper-shaped transition storehouse, divide the material pipe to be radial arranging around the circumference of main inlet pipe.
Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:
(1) the utility model discloses a be equipped with saltpeter water overflow mouth on the smelting pot body, when using electricity melting flying ash, because the cold top operation in the smelting pot body, be used for the molten raw materials to cover on the melt in the inner chamber through throwing material device one deck ground, because the bottom temperature of smelting pot body is higher, be used for the melting of flying ash, the upper surface of flying ash melt constantly covers new raw materials, form the heat insulating layer, make the temperature of smelting pot body inner chamber upper portion lower, be far below the volatilization temperature of saltpeter water, can not produce secondary pollution, because the viscosity of saltpeter water is very low, flow like water, float on the flying ash melt in the smelting pot body, saltpeter water is automatic to flow from the saltpeter water overflow mouth, the temperature in the smelting pot body rises gradually from top to bottom, the flying ash melt in bottom is in the high temperature state, the mobility is stronger, conveniently discharge from the bottom of smelting pot body, or discharge through the material way eduction, the feeding device capable of rotating 360 degrees is arranged on the smelting furnace body, a main feeding pipe of the feeding device extends into the smelting furnace body, and a cover does not need to be opened back and forth during feeding, so that the sealing performance of the smelting furnace body is improved, the volatilization of pollutants can be effectively prevented, the internal heat loss of the smelting furnace body is small, and the heat efficiency is high;
(2) the utility model discloses a bottom of smelting pot body is the cone, heavy metal in the flying dust melting process is piled up on the cone of smelting pot body bottom, be favorable to the heavy metal along with flying dust melt discharges from the blowing ware, and during the blowing, fly dust melt in the blowing ware is heated through accuse temperature electrode, make the viscosity of flying dust melt descend, conveniently flow out, exert the electric current on accuse temperature electrode through the control, adjust ejection of compact speed, be equipped with nitrogen gas generating device on the blowing ware, because the blowing ware is the molybdenum material, continuous logical nitrogen gas in the blowing ware, form the nitrogen gas curtain, seal this hole, do not let the air enter, protect the blowing ware not by the oxidation;
(3) in order to prevent the saltpeter water from being solidified at the saltpeter water overflow port in the flowing process of the saltpeter water, the saltpeter water overflow port is provided with a silicon carbide rod for heating, so that the temperature is kept constant, and the saltpeter water can be quickly collected;
(4) the feed liquid discharge device of the utility model is internally provided with the silicon carbide rod and the auxiliary electrode, so that the fly ash melt can keep constant temperature in the discharge process;
(5) the utility model discloses an one end that main inlet pipe and batcher are connected has set firmly the transition storehouse that leaks hopper-shaped, is favorable to the batcher to throw in the main inlet pipe with the raw materials is whole, can not spill the outside, divides the material pipe to be radial arranging around the circumference of main inlet pipe, is favorable to scattering the even inner chamber to the smelting pot body with the raw materials.
To sum up, the utility model discloses can not produce secondary pollution at flying dust melting in-process, throw material in-process leakproofness good, it is even to spill the material, can carry out the raw materials supply according to this internal liquid level of smelting pot is automatic, with the electricity melting flying dust, the heat waste is little, efficient, and the heavy metal is easily discharged, is applicable to the melting of all flying dusts.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic sectional structure diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1A-A;
fig. 3 is a schematic structural view of the discharger 10.
In the figure: 1-a smelting furnace body, 2-a joule heat generating device, 3-a feeding device, 31-a main feeding pipe, 32-a material separating pipe, 33-a driving device, 331-a motor, 332-a first gear, 333-a second gear, 4-a feeder, 5-a silicon carbon rod, 6-a material channel discharging device, 61-a lower horizontal material channel, 62-an ascending material channel, 63-an upper horizontal material channel, 7-an auxiliary electrode, 8-a liquid level meter, 9-a thermometer, 10-a material discharging device, 11-a nitrogen generating device, 12-a material tank, 13-a saltwater overflow port, 14-a transition bin and 15-a temperature control electrode.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the fly ash fusion apparatus described herein is a preferred embodiment, is for purposes of illustration and explanation only, and is not to be construed as a limitation of the present invention.
Example fly ash melting apparatus
In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, a fly ash melting device includes a furnace body 1 having an inner cavity, the bottom of the furnace body 1 is a cone, and a bottom material liquid outlet is formed in the cone at the bottom, the bottom material liquid outlet is a stepped port, i.e., the diameter of the upper portion (upper portion in fig. 1) is large, the diameter of the lower portion (lower portion in fig. 1) is small, a molybdenum discharger 10 is fixedly disposed on the bottom material liquid outlet, and the shape of the discharger 10 fits the shape of the stepped port. The temperature control electrode 15 is fixedly arranged on the discharger 10, the temperature in the discharger 10 is controlled by loading current to the temperature control electrode 15, when the temperature in the discharger 10 is higher, the viscosity of the fly ash melt is reduced, the fluidity is improved, and the fly ash melt can quickly flow out of the discharger 10; when the temperature in the discharger 10 is low, the viscosity of the fly ash melt increases, the fluidity deteriorates, and the speed of the flow out of the discharger 10 becomes small. The nitrogen generating device 11 for preventing air from entering the discharger 10 is fixedly arranged outside the discharger 10, and the nitrogen generating device 11 of the embodiment adopts the prior art, because the discharger 10 is made of molybdenum, nitrogen is continuously introduced into the discharger 10 to form a nitrogen curtain, the hole is sealed, air is not allowed to enter, and the discharger 10 is protected from being oxidized. The part for the melting reaction of the fly ash in the inner cavity of the furnace body 1 is made of high-temperature resistant material, and the outside is made of heat insulation material.
The electric furnace comprises a furnace body 1, and is characterized in that a joule heat generating device 2 is fixedly arranged on the furnace body 1, the joule heat generating device 2 of the embodiment comprises a plurality of alternating current electrodes for main melting, six alternating current electrodes are uniformly and fixedly arranged on the circumference of the furnace body 1 and are close to the lower part of the furnace body 1 and used for heating the bottom of the fly ash melt, so that the temperature of the fly ash melt is gradually increased from bottom to top (from bottom to top in figure 1), the temperature of the upper part of an inner cavity of the furnace body 1 is ensured to be lower, the saltpeter water is not easy to volatilize, and the flow of the saltpeter water from a saltpeter water overflow.
The melting furnace is characterized in that a saltpeter overflow port 13 is formed in the melting furnace body 1, the saltpeter overflow port 13 extends horizontally to the outside firstly, and then extends downwards along the melting furnace body 1 to form a channel for liquid circulation. The saltpeter overflow ports 13 are fixedly arranged at the upper part of the smelting furnace body 1 and are basically level to the surface of the fly ash fused mass, and the saltpeter water floats on the upper surface of the fly ash fused mass in the fly ash fusion process, so that the saltpeter water can quickly flow out along the saltpeter overflow ports 13 when the saltpeter water is generated. Simultaneously, in order to make the saltpeter water can flow out smoothly, all set firmly in the passageway that the saltpeter water overflow opening 13 horizontal direction extends and downwardly extending's passageway and be used for controlling the constancy of temperature's elema 5, guarantee the constancy of temperature of saltpeter water overflow opening 13 department.
The upper portion (figure 1 upper portion) of smelting pot body 1 is connected with through the bearing rotation and throws material device 3, throw material device 3 and include main inlet pipe 31, main inlet pipe 31 stretches to the outside by the inner chamber of smelting pot body 1, the one end that main inlet pipe 31 is located the inner chamber of smelting pot body 1 has set firmly a plurality of branch pipes 32, branch pipe 32 and main inlet pipe 31 intercommunication set up, and be radially arranging around the circumference of main inlet pipe 31, make the one end that branch pipe 32 is not connected main inlet pipe 31 basically flush with saltpeter overflow mouth 13 to make it at the material scattering in-process, can be with even scattering to the inner chamber of smelting pot body 1 of raw materials. One end of the main feeding pipe 31, which is positioned outside the furnace body 1, is fixedly provided with a funnel-shaped transition bin 14. The transition bin 14 is connected with the feeder 4, the feeder 4 adopts the prior art, and the feeder 4 can throw the raw materials in the charging bucket 12 quantitatively to the funnel-shaped transition bin 14 on the main feeding pipe 31. The driving device 33 for driving the main feeding pipe 31 to rotate is arranged on the main feeding pipe 31, the driving device 33 of the embodiment includes a first gear 332 fixedly arranged on the main feeding pipe 31 and a second gear 333 in transmission connection with the first gear 332 through a chain, and the motor 331 drives the second gear 333 to rotate, so that the main feeding pipe 31 continuously rotates by 360 degrees.
The device comprises a smelting furnace body 1 and is characterized in that a material channel discharging device 6 for flowing out of a fly ash molten body is fixedly arranged on the smelting furnace body 1, the material channel discharging device 6 comprises a lower horizontal material channel 61, a vertically arranged ascending material channel 62 and an upper horizontal material channel 63, and the lower horizontal material channel 61 is communicated with a bottom cone of the smelting furnace body 1. And auxiliary electrodes 7 are fixedly arranged in the lower horizontal material channel 61, the upper material channel 62 and the upper horizontal material channel 63, so that the temperature of the fly ash molten mass is kept constant in the flowing process. And a plurality of silicon carbide rods 5 are fixedly arranged in the upper horizontal material channel 63, and the temperature in the material channel discharging device 6 is ensured to be constant through thermocouple temperature measurement feedback. And a liquid level meter 8 for controlling the feeding amount of the feeder 4 is fixedly arranged on the upper horizontal material channel 63, and a thermometer 9 is also fixedly arranged on the upper horizontal material channel.
The embodiment further comprises a control device, and the motor 331 of the driving device 33, the main melting alternating current electrode, the auxiliary electrode 7, the thermometer 9, the feeder 4, the liquid level meter 8 and the control device form a closed loop. Wherein the feeder 4 quantitatively puts the material into the main feeding pipe 31 according to the detection data of the liquid level meter 8.
The present invention is not limited to the above embodiments, and any person skilled in the art can not use the above technical content as teaching to modify or modify the equivalent embodiments with equivalent changes, but all the modifications, equivalents and modifications made to the above embodiments without departing from the technical spirit of the present invention are still within the scope of the present invention as claimed in the present invention.
Claims (5)
1. The utility model provides a fly ash melting device, includes the smelting pot body that is equipped with the inner chamber, sets firmly joule heat generation device and the controlling means on the smelting pot body which characterized in that: the melting furnace body is also provided with a saltpeter overflow port, a feeding device and a material channel discharging device for flowing out of the fly ash molten liquid;
the feeding device comprises a main feeding pipe extending to the outside from the inner cavity of the smelting furnace body, a plurality of material distributing pipes communicated with the main feeding pipe, a driving device for driving the main feeding pipe to rotate, and a feeding machine with one end positioned above the main feeding pipe and the other end connected with the charging bucket, wherein the material distributing pipes are arranged in the inner cavity of the smelting furnace body;
a liquid level meter, a thermometer and an auxiliary electrode which are used for controlling the feeding amount of the feeder are fixedly arranged on the material channel discharging device;
the driving device, the joule heat generating device, the auxiliary electrode, the thermometer, the feeder, the liquid level meter and the control device form a closed loop.
2. A fly ash fusion device according to claim 1, characterized in that: the smelting furnace is characterized in that the bottom of the smelting furnace body is a cone, a bottom material liquid outlet is formed in the cone at the bottom, a molybdenum discharger is fixedly arranged on the bottom material liquid outlet, a temperature control electrode is fixedly arranged on the discharger, and a nitrogen generating device used for introducing nitrogen into the discharger is fixedly arranged outside the discharger.
3. A fly ash fusion device according to claim 2, characterized in that: the interior of the furnace body is made of high-temperature resistant materials, and the exterior of the furnace body is made of heat-insulating materials.
4. A fly ash fusion device according to any one of claims 1-3, characterized in that: and silicon-carbon rods for controlling the temperature to be constant are fixedly arranged in the saltpeter water overflow port and the material channel discharge device.
5. A fly ash fusion device according to claim 4, characterized in that: the one end that main inlet pipe and batcher are connected sets firmly hourglass hopper-shaped transition storehouse, divide the material pipe to be radial arranging around the circumference of main inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092535.7U CN211823800U (en) | 2020-01-16 | 2020-01-16 | Fly ash melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092535.7U CN211823800U (en) | 2020-01-16 | 2020-01-16 | Fly ash melting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211823800U true CN211823800U (en) | 2020-10-30 |
Family
ID=72990195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020092535.7U Active CN211823800U (en) | 2020-01-16 | 2020-01-16 | Fly ash melting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211823800U (en) |
-
2020
- 2020-01-16 CN CN202020092535.7U patent/CN211823800U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109469910B (en) | Continuous overflow deslagging plasma melting furnace and application | |
| WO2008038556A1 (en) | Precious metal recovering apparatus | |
| CN110176322A (en) | A kind of middle low-activity solid waste volume reduction processing system and its method | |
| CN109237490B (en) | Gasification plasma waste treatment system | |
| CN106563690A (en) | Fly ash plasma smelting furnace based on plasma arc technology | |
| CN110470139A (en) | A kind of flying dust plasma fusion device and method heated below bath surface | |
| CN100447263C (en) | Harmless processing system and process for copper powder containing organism and glass fiber | |
| CN211823800U (en) | Fly ash melting device | |
| CN115109617A (en) | Downdraft plasma gasification melting device for solid waste recycling treatment | |
| CN111102836A (en) | Fly ash melting device and method thereof | |
| CN112484033A (en) | Wide-temperature-range melting treatment device and method for waste incineration fly ash | |
| CN107606621A (en) | A kind of centrifugal solid pollutant high temperature smelting furnace based on plasma | |
| JP2000320979A (en) | Method and device for induction heating and melting treatment of granulated body containing metallic oxide | |
| CN216801094U (en) | Solid waste treatment device | |
| CN214370204U (en) | Wide temperature range melting treatment device for waste incineration fly ash | |
| CN109237492B (en) | Ash conveying mechanism and gasification plasma waste melting furnace | |
| CN104851469B (en) | Spirally whole bucket feeds processing system to one kind | |
| JP3483054B2 (en) | DC electric melting furnace for the production of reduced molten slag. | |
| JP3871172B2 (en) | Molybdenum electrode body used in the former furnace attached to the electric melting furnace | |
| CN203068530U (en) | Environment-friendly heat processing system | |
| CN220648260U (en) | Plasma melting furnace | |
| JP2000039118A (en) | Side charge type dc electric melting furnace for reduction molten slag | |
| CN215723265U (en) | Plasma melting device applied to on-line ash treatment of rotary kiln | |
| CN103851631A (en) | Environment-friendly heat treatment system | |
| CN114432968B (en) | Radioactive waste plasma gasification melting furnace of dumping type molten pool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |