CN215337853U - High-efficient coal of cleaner production calcines flue gas cooling device - Google Patents
High-efficient coal of cleaner production calcines flue gas cooling device Download PDFInfo
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- CN215337853U CN215337853U CN202121717937.2U CN202121717937U CN215337853U CN 215337853 U CN215337853 U CN 215337853U CN 202121717937 U CN202121717937 U CN 202121717937U CN 215337853 U CN215337853 U CN 215337853U
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Abstract
The application discloses a high-efficiency coal calcination flue gas cooling device for clean production, wherein before flue gas enters the device, a cooling pump is started to convey cooling water in a circulating cold water pool to a cooling water pipe to cool a cone; the flue gas generated in the production process of the electrically calcined coal is conveyed to the air inlet pipe and enters the cylinder under the action of the fan, the flue gas moves downwards along the side wall of the cylinder, and when the flue gas reaches the inside of the cone, the temperature of the flue gas is reduced, so that dust in the flue gas is gathered and slides to the dust collecting tank along the side wall of the cone; the flue gas with reduced temperature and removed dust is then conveyed to the next flue gas treatment process through the air outlet pipe. The flue gas passes through the device, both can the dust removal, also can improve the subsequent desulfurization efficiency of flue gas, makes the flue gas emission more accord with the national flue gas emission and accord with the standard.
Description
Technical Field
The application relates to an electricity forge coal production field especially relates to a high-efficient coal of clean production calcines flue gas cooling device.
Background
The electrically calcined coal is produced in an electric furnace at high temperature, and has the characteristics of low ash, low sulfur, low phosphorus, high calorific value and high compressive strength, and is an indispensable main material for producing electrodes and various aluminum blocks.
In the production process of the electrically calcined coal, the coal is calcined to generate flue gas, the flue gas contains sulfur dioxide, and if the flue gas is discharged, toxic substances such as sulfur dioxide in the flue gas and the like must be removed, so that the flue gas can be discharged into the air. The flue gas temperature is high, the specific resistance in an electric field for electric precipitation is high under the same condition, the dust removal efficiency is relatively low, the ash content in the flue gas can be increased, and the desulfurization efficiency is reduced.
Therefore, the increase of the ash content in the flue gas in the production process of the electric calcined coal is a problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The application provides a high-efficient coal of cleaner production calcines flue gas cooling device, has solved and has produced the problem that the dust content is big and influence desulfurization efficiency in the flue gas in the electricity forge coal production process.
In order to solve the technical problem, the application provides a clean production's high-efficient coal calcines flue gas cooling device, includes:
the barrel, the lateral wall of barrel is provided with the intake pipe, the intake pipe runs through the lateral wall setting of barrel, intake-tube connection has the fan, the top of barrel is provided with the outlet duct, the outlet duct all runs through the top setting of barrel, the barrel is connected with the cone, the cone is connected with the collection dirt jar, the cone outside is provided with the cooling tube, the cooling tube is connected with the cold water pool of circulation, just the other end of cooling tube is connected with the cooling pump, the cooling pump is connected with the inlet tube, the one end of inlet tube is connected with the cooling circulation pond, the cooling tube pass through the connector link with the cone is connected.
Preferably, a ball valve is further arranged on the water inlet pipe.
Preferably, a support is also connected to the cone.
Preferably, the cone is connected to the dust tank through a star-type ash discharge valve.
Preferably, a temperature sensor is further arranged in the barrel.
Compared with the prior art, the high-efficiency coal calcining flue gas cooling device for clean production provided by the application starts the cooling pump before flue gas enters the device, conveys cooling water in the circulating cold water pool to the cooling water pipe, and cools the cone; the flue gas generated in the production process of the electrically calcined coal is conveyed to the air inlet pipe and enters the cylinder under the action of the fan, the flue gas moves downwards along the side wall of the cylinder, and when the flue gas reaches the inside of the cone, the temperature of the flue gas is reduced, so that dust in the flue gas is gathered and slides to the dust collecting tank along the side wall of the cone; the flue gas with reduced temperature and removed dust is then conveyed to the next flue gas treatment process through the air outlet pipe. The flue gas passes through the device, both can the dust removal, also can improve the subsequent desulfurization efficiency of flue gas, makes the flue gas emission more accord with the national flue gas emission and accord with the standard.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
FIG. 1 is a schematic structural diagram of a clean-production high-efficiency coal calcination flue gas cooling device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air outlet pipe provided in the embodiment of the present invention.
In the figure, 1 cylinder, 2 air inlet pipes, 3 fans, 4 air outlet pipes, 5 cones, 6 dust collecting tanks, 7 cooling pipes, 8 circulating cold water pools, 9 cooling pumps, 10 water inlet pipes, 11 connecting buckles, 12 ball valves, 13 supports, 14 star-shaped ash discharge valves and 15 temperature sensors.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of this application is to provide a clean production's high-efficient coal calcination flue gas cooling device, can solve the problem that contains the dust volume in the production flue gas and influences desulfurization efficiency in the electricity calcining coal production process.
Fig. 1 is a schematic structural diagram of a clean-production efficient coal calcination flue gas cooling device provided in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of an air outlet pipe provided in an embodiment of the present invention, as shown in fig. 1 and fig. 2, the device includes:
Specifically, the high-temperature flue gas enters the fan 3 from the position A along the arrow direction in fig. 1, and then reaches the air inlet pipe 2 under the action of the fan 3, the air inlet pipe 2 is obliquely connected with the upper end of the side wall of the cylinder body 1, and the flue gas fed into the cylinder body 1 moves downwards along the spiral of the inner side wall of the cylinder body 1. At the same time, the cooling pump 9 starts to operate, and the cooling water in the circulating cold water pool 8 is conveyed to the cooling pipe 7 through the water inlet pipe 10, and preferably, the water inlet pipe 10 is further provided with a ball valve 12, and the connection of the ball valve 12 can facilitate the maintenance and the disassembly of the cooling pump 9. Since the cooling pipe 7 is connected to the cone 5 by the connector 11, when the cooling water passes through the cooling pipe 7 connected to the cone 5, the temperature of the cone 5 is lowered and the temperature inside the cone 5 is lowered. When the flue gas reaches the interior of the cone 5, a descending outward-rotating dust-containing gas flow is formed, the temperature is reduced, so that dust in the flue gas is accumulated, dust particles with the density far higher than that of the gas are thrown to the side wall of the cone 5 by the centrifugal force generated in the strong rotating process, and once the dust particles are contacted with the side wall of the cone 5, the dust particles fall into the dust collection tank 6 along the wall surface by the motive force of the inlet speed and the self gravity without the muddled force. After reaching the bottom of the cone 5, the rotating descending airflow rotates upwards along the axis of the cooling device to form ascending internal rotation airflow, and the ascending internal rotation airflow is discharged from the air outlet pipe 4 of the dust remover.
The cone 5 is of a "heavy-end" construction, susceptible to tipping, and preferably the cone 5 is also associated with a seat 13. The side of the cone 5 is provided with a support 13, which can ensure the stability of the cone 5 and the cylinder 1.
In order to avoid the flue gas from entering the dust tank 6 during the cooling process, the cone 5 is preferably connected to the dust tank 6 via a star-shaped ash valve 14. The star-shaped ash valve 14 mainly comprises a shell, an impeller and an end cover, adopts a high-quality steel plate welding structure, has strong abrasion resistance of blades, and integrates a transmission device, a transmission shaft and the blades into a whole. The blanking device has the characteristics of stable and reliable work, uniform blanking, portability and energy conservation. Because the bearing and the speed reducer of the star-shaped ash discharge valve 14 are both outwards protruded, the phenomena that dust is extruded into the bearing and large-particle materials are stuck can be avoided. When the dust collector works, the speed reducing motor drives the impeller to rotate through the coupling shaft, so that materials on the upper part of the shell are uniformly brought to the lower part and enter the dust collecting tank 6.
When the temperature of the flue gas is controlled at 90 ℃, the specific resistance of the flue gas can be reduced, the particle coagulation can be increased, and in order to monitor the temperature of the flue gas, a temperature sensor 15 is preferably arranged in the cylinder body 1. The temperature sensor 15 is a sensor that converts a temperature variable into a transmittable standardized output signal, and the temperature sensor 15 is a contact temperature sensor, and a detection portion of the contact temperature sensor is in good contact with a measured object, which is also called a thermometer. A thermistor can be selected, which is made of a semiconductor material, and has mostly a negative temperature coefficient, i.e., the resistance value decreases with increasing temperature.
According to the high-efficiency coal calcination flue gas cooling device for clean production, before flue gas enters the device, the cooling pump is started, cooling water in the circulating cold water tank is conveyed into the cooling water pipe, and cooling is carried out on the cone; the flue gas generated in the production process of the electrically calcined coal is conveyed to the air inlet pipe and enters the cylinder under the action of the fan, the flue gas moves downwards along the side wall of the cylinder, and when the flue gas reaches the inside of the cone, the temperature of the flue gas is reduced, so that dust in the flue gas is gathered and slides to the dust collecting tank along the side wall of the cone; the flue gas with reduced temperature and removed dust is then conveyed to the next flue gas treatment process through the air outlet pipe. The flue gas passes through the device, both can the dust removal, also can improve the subsequent desulfurization efficiency of flue gas, makes the flue gas emission more accord with the national flue gas emission and accord with the standard.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (5)
1. The utility model provides a clean production's high-efficient coal calcination flue gas cooling device which characterized in that includes:
the barrel, the lateral wall of barrel is provided with the intake pipe, the intake pipe runs through the lateral wall setting of barrel, intake-tube connection has the fan, the top of barrel is provided with the outlet duct, the outlet duct all runs through the top setting of barrel, the barrel is connected with the cone, the cone is connected with the collection dirt jar, the cone outside is provided with the cooling tube, the cooling tube is connected with the cold water pool of circulation, just the other end of cooling tube is connected with the cooling pump, the cooling pump is connected with the inlet tube, the one end of inlet tube is connected with the cooling circulation pond, the cooling tube pass through the connector link with the cone is connected.
2. The clean-production efficient coal calcination flue gas cooling device as claimed in claim 1, wherein the water inlet pipe is further provided with a ball valve.
3. The device for cooling the flue gas generated in the process of clean production of coal calcination as claimed in claim 1, wherein the cone is further connected with a support.
4. The clean-production high-efficiency coal calcination flue gas cooling device as claimed in claim 1, wherein the cone is connected with the dust collection tank through a star-shaped ash discharge valve.
5. The device for cooling the flue gas generated in the clean production process of the coal calcination process of claim 1, wherein a temperature sensor is further arranged in the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121717937.2U CN215337853U (en) | 2021-07-27 | 2021-07-27 | High-efficient coal of cleaner production calcines flue gas cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121717937.2U CN215337853U (en) | 2021-07-27 | 2021-07-27 | High-efficient coal of cleaner production calcines flue gas cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215337853U true CN215337853U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121717937.2U Active CN215337853U (en) | 2021-07-27 | 2021-07-27 | High-efficient coal of cleaner production calcines flue gas cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215337853U (en) |
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2021
- 2021-07-27 CN CN202121717937.2U patent/CN215337853U/en active Active
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