阅读说明：本技术 一种活性氧化铝生产工艺 (Production process of activated alumina ) 是由 陈玉文 吕震 吴晓 陈凯 于 2021-07-01 设计创作，主要内容包括：本发明公开了一种活性氧化铝生产工艺,包括以下步骤：S1、烘干系统启动；S2、粉碎系统启动；S3、快脱系统启动；S4、停机；S5、成球盘开车；S6、停机；S7、糖衣加工；S8、焙烧；S9、立炉停车；S10、包装。本发明的优点在于：生产量高、生产质量有保障。(The invention discloses a production process of activated alumina, which comprises the following steps: s1, starting a drying system; s2, starting a crushing system; s3, starting a quick release system; s4, stopping the machine; s5, driving a balling plate; s6, stopping the machine; s7, sugar coating processing; s8, roasting; s9, stopping the vertical furnace; and S10, packaging. The invention has the advantages that: the yield is high and the production quality is guaranteed.)

1. The production process of the activated alumina is characterized by comprising the following steps:

s1, starting a drying system, starting an airflow drying fan, starting a special-shaped fan, starting a spray gun, igniting and heating, starting a blanking double helix when the drying temperature is over 130 ℃, feeding an electric hoist, finally controlling the drying temperature within 300 ℃, and controlling the drying and dust collection temperature within 100 ℃;

s2, starting a crushing system, starting a crushing dedusting fan, starting a mill, starting a normal rear classifier, starting a vortex fan, and starting a crushing and blanking screw;

s3, starting a quick-release system, checking a circulating water pump, starting a quick-release dust removal fan after normal backwater is normal, starting a pulse valve controller of a quick-release dust remover, igniting and heating a spray gun, starting a feeding screw 1 and a feeding screw 2 when the temperature of outlet air reaches 750 ℃, controlling the temperature of an air outlet at 340-350 ℃, controlling the temperature of a quick-release furnace at 950 +/-10 ℃, and controlling the temperature of a quick-release dust inlet not to exceed 180 ℃;

s4, stopping the machine, stopping the drying system, stopping the feeding of the raw material bin, stopping the discharging spiral, turning off natural gas and stopping the spray gun, stopping the special-shaped fan after 10 minutes, stopping the air flow drying draught fan, stopping the crushing system, stopping the crushing discharging spiral, stopping the classifier after 20 minutes of operation, stopping the mill, stopping the vortex fan, stopping the crushing and dedusting draught fan after 10 minutes, stopping the quick-release system, stopping the quick-release discharging spiral 1 and the discharging spiral 2, turning off the natural gas, stopping the spray gun, stopping the quick-dust-removal draught fan after 30 minutes of operation, stopping the quick-release draught fan after 1 hour of operation, stopping circulating water and stopping the air compressor when the temperature of the quick-release furnace is reduced to below 100 ℃;

s5, starting a balling plate, adding a proper amount of seeds into the balling plate, starting a spraying and starting feeding system to feed after the balling plate operates stably, and adjusting the discharge amount and the water addition amount according to the capacity of materials in the balling plate;

s6, stopping the machine, digging out the seeds which do not grow in the balling plate, forming the materials in the balling plate at one time, stopping spiral blanking after the materials in the balling plate are formed at one time, stopping adding water after about 2-5 minutes, and cleaning the balling plate;

s7, sugar coating processing, namely, guiding the alumina balls in the storage bin into a sugar coating pot, starting the sugar coating pot, controlling the water spraying amount according to the water content of the semi-finished product balls, stopping the sugar coating pot after the surfaces of the alumina balls are smooth and have no burrs or desizing phenomena, opening the storage bin, putting the semi-finished product packaging bags into the storage bin, cleaning the sugar coating pot, and transporting the packaging bags filled with the semi-finished products to a specified position for health preservation, wherein the material containing amount of the alumina balls in the sugar coating pot is 5cm lower than the lower edge of the sugar coating pot;

s8, roasting, feeding, starting a vertical furnace fan, powering on a natural gas burner, igniting, raising to a process temperature, starting a ball suction fan, and discharging;

s9, stopping the vertical furnace, closing a lower valve of the vertical furnace, closing a burner and shutting down a fan of the vertical furnace;

and S10, packaging, opening a bin valve for screening, and weighing the packaged activated alumina.

2. The activated alumina production process of claim 1, wherein: in the step S1, the drying fan is started from 0 position to 35HZ, and the special-shaped fan is started from 0 position to 30 HZ.

3. The activated alumina production process of claim 1, wherein: in the S2, the crushing and dust removing fan is started from 0 position to 45HZ, and the classifier is started from 0 position to 25 HZ.

4. The activated alumina production process of claim 1, wherein: in the step S3, the fast dust removal fan is started to slowly increase from 0 to 30 HZ.

5. The activated alumina production process of claim 1, wherein: and in the S10, observing the integrity, color, dust and particle size of the finished alumina ball.

Technical Field

The invention relates to the technical field of active alumina production, in particular to an active alumina production process.

Background

Activated alumina, also known as Activated alumina, is known in english as Activated alumina. Alumina, which is commonly and exclusively referred to as "activated alumina," is a porous, highly dispersed solid material having a large surface area and having microporous surfaces with properties required for catalytic action, such as adsorption properties, surface activity, excellent thermal stability, etc., and is therefore widely used as a catalyst and a catalyst support for chemical reactions. The spherical active alumina pressure changing oil adsorbent is white spherical porous particle, and has homogeneous active alumina granularity, smooth surface, high mechanical strength, high hydroscopicity, no swelling and cracking after water absorption, no toxicity, no smell, no water solubility and no ethanol. The active alumina is a high-efficiency drying agent for deep drying by micro water, and is suitable for a heatless regeneration device.

The production quantity and the production quality of the active alumina in the existing active alumina production process are both required to be improved.

Disclosure of Invention

The invention aims to solve the technical problem of providing an activated alumina production process with high yield and guaranteed production quality.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a production process of activated alumina comprises the following steps:

s1, starting a drying system, starting an airflow drying fan, starting a special-shaped fan, starting a spray gun, igniting and heating, starting a blanking double helix when the drying temperature is over 130 ℃, feeding an electric hoist, finally controlling the drying temperature within 300 ℃, and controlling the drying and dust collection temperature within 100 ℃;

s2, starting a crushing system, starting a crushing dedusting fan, starting a mill, starting a normal rear classifier, starting a vortex fan, and starting a crushing and blanking screw;

s3, starting a quick-release system, checking a circulating water pump, starting a quick-release dust removal fan after normal backwater is normal, starting a pulse valve controller of a quick-release dust remover, igniting and heating a spray gun, starting a feeding screw 1 and a feeding screw 2 when the temperature of outlet air reaches 750 ℃, controlling the temperature of an air outlet at 340-350 ℃, controlling the temperature of a quick-release furnace at 950 +/-10 ℃, and controlling the temperature of a quick-release dust inlet not to exceed 180 ℃;

s4, stopping the machine, stopping the drying system, stopping the feeding of the raw material bin, stopping the discharging spiral, turning off natural gas and stopping the spray gun, stopping the special-shaped fan after 10 minutes, stopping the air flow drying draught fan, stopping the crushing system, stopping the crushing discharging spiral, stopping the classifier after 20 minutes of operation, stopping the mill, stopping the vortex fan, stopping the crushing and dedusting draught fan after 10 minutes, stopping the quick-release system, stopping the quick-release discharging spiral 1 and the discharging spiral 2, turning off the natural gas, stopping the spray gun, stopping the quick-dust-removal draught fan after 30 minutes of operation, stopping the quick-release draught fan after 1 hour of operation, stopping circulating water and stopping the air compressor when the temperature of the quick-release furnace is reduced to below 100 ℃;

s5, starting a balling plate, adding a proper amount of seeds into the balling plate, starting a spraying and starting feeding system to feed after the balling plate operates stably, and adjusting the discharge amount and the water addition amount according to the capacity of materials in the balling plate;

s6, stopping the machine, digging out the seeds which do not grow in the balling plate, forming the materials in the balling plate at one time, stopping spiral blanking after the materials in the balling plate are formed at one time, stopping adding water after about 2-5 minutes, and cleaning the balling plate;

s7, sugar coating processing, namely, guiding the alumina balls in the storage bin into a sugar coating pot, starting the sugar coating pot, controlling the water spraying amount according to the water content of the semi-finished product balls, stopping the sugar coating pot after the surfaces of the alumina balls are smooth and have no burrs or desizing phenomena, opening the storage bin, putting the semi-finished product packaging bags into the storage bin, cleaning the sugar coating pot, and transporting the packaging bags filled with the semi-finished products to a specified position for health preservation, wherein the material containing amount of the alumina balls in the sugar coating pot is 5cm lower than the lower edge of the sugar coating pot;

s8, roasting, feeding, starting a vertical furnace fan, powering on a natural gas burner, igniting, raising to a process temperature, starting a ball suction fan, and discharging;

s9, stopping the vertical furnace, closing a lower valve of the vertical furnace, closing a burner and shutting down a fan of the vertical furnace;

and S10, packaging, opening a bin valve for screening, and weighing the packaged activated alumina.

Compared with the prior art, the invention has the advantages that: according to the activated alumina production process, the raw materials are dried through the drying system, crushed through the crushing system, rapidly dedusted through the rapid dedusting system, and well processed; the balling disc processes the raw materials into balls, so that the subsequent processing is facilitated; after sugar coating processing, the surface of the alumina ball is smooth and has no burrs, and the yield, the production efficiency and the quality of the activated alumina are ensured.

Further, in the step S1, the drying fan is started from 0 position to 35HZ, and the profile fan is started from 0 position to 30 HZ.

Further, in the step S2, the dust removal fan is started from 0 position to 45HZ, and the classifier is started from 0 position to 25 HZ.

Further, in S3, the fast dust removal fan is started to slowly increase from 0 to 30 HZ.

Further, the integrity, color, dust, particle size of the finished alumina balls were observed in S10.

Detailed Description

For the purpose of better explaining the present invention, the present invention will be described in detail by way of specific embodiments for easy understanding.

Example one

A production process of activated alumina comprises the following steps:

s1, starting a drying system, starting an airflow drying fan, starting a special-shaped fan, starting a spray gun, igniting and heating, starting a blanking double helix when the drying temperature reaches 150 ℃, feeding an electric hoist, finally controlling the drying temperature at 280 and controlling the drying and dust collection temperature at 90 ℃;

s2, starting a crushing system, starting a crushing dedusting fan, starting a mill, starting a normal rear classifier, starting a vortex fan, and starting a crushing and blanking screw;

s3, starting a quick-release system, checking a circulating water pump, starting a quick-release dust removal fan after normal backwater is normal, starting a pulse valve controller of a quick-release dust remover, igniting and heating a spray gun, starting a feeding screw 1 and a feeding screw 2 when the temperature of outlet air reaches 750 ℃, controlling the temperature of an air outlet at 340-350 ℃, controlling the temperature of a quick-release furnace at 950 +/-10 ℃, and controlling the temperature of a quick-release dust inlet not to exceed 180 ℃;

s4, stopping the machine, stopping the drying system, stopping the feeding of the raw material bin, stopping the discharging spiral, turning off natural gas and stopping the spray gun, stopping the special-shaped fan after 10 minutes, stopping the air flow drying draught fan, stopping the crushing system, stopping the crushing discharging spiral, stopping the classifier after 20 minutes of operation, stopping the mill, stopping the vortex fan, stopping the crushing and dedusting draught fan after 10 minutes, stopping the quick-release system, stopping the quick-release discharging spiral 1 and the discharging spiral 2, turning off the natural gas, stopping the spray gun, stopping the quick-dust-removal draught fan after 30 minutes of operation, stopping the quick-release draught fan after 1 hour of operation, stopping circulating water and stopping the air compressor when the temperature of the quick-release furnace is reduced to below 100 ℃;

s5, starting a balling plate, adding a proper amount of seeds into the balling plate, starting a spraying and starting feeding system to feed after the balling plate operates stably, and adjusting the discharge amount and the water addition amount according to the capacity of materials in the balling plate;

s6, stopping the machine, digging out the seeds which do not grow in the balling plate, forming the materials in the balling plate at one time, stopping spiral blanking after the materials in the balling plate are formed at one time, stopping adding water after 4 minutes, and cleaning the balling plate;

s7, sugar coating processing, namely, guiding the alumina balls in the storage bin into a sugar coating pot, starting the sugar coating pot, controlling the water spraying amount according to the water content of the semi-finished product balls, stopping the sugar coating pot after the surfaces of the alumina balls are smooth and have no burrs or desizing phenomena, opening the storage bin, putting the semi-finished product packaging bags into the storage bin, cleaning the sugar coating pot, and transporting the packaging bags filled with the semi-finished products to a specified position for health preservation, wherein the material containing amount of the alumina balls in the sugar coating pot is 5cm lower than the lower edge of the sugar coating pot;

s8, roasting, feeding, starting a vertical furnace fan, powering on a natural gas burner, igniting, raising to a process temperature, starting a ball suction fan, and discharging;

s9, stopping the vertical furnace, closing a lower valve of the vertical furnace, closing a burner and shutting down a fan of the vertical furnace;

and S10, packaging, opening a bin valve for screening, and weighing the packaged activated alumina.

Example two

A production process of activated alumina comprises the following steps:

s1, starting a drying system, starting an airflow drying fan, starting a special-shaped fan, starting a spray gun, igniting and heating, starting a discharging double helix and an electric hoist when the drying temperature reaches 150 ℃, and finally controlling the drying temperature at 290 ℃ and the drying dust collection temperature at 95 ℃;

s2, starting a crushing system, starting a crushing dedusting fan, starting a mill, starting a normal rear classifier, starting a vortex fan, and starting a crushing and blanking screw;

s3, starting a quick-release system, checking a circulating water pump, starting a quick-release dust removal fan after normal backwater is returned, starting a pulse valve controller of a quick-release dust remover, igniting and heating a spray gun, starting a feeding screw 1 and a feeding screw 2 when the outlet air temperature reaches 750 ℃, controlling the temperature of an air outlet at 350 ℃, controlling the temperature of a quick-release furnace at 950 ℃ and controlling the temperature of a quick-release dust inlet at 170 ℃;

s4, stopping a drying system, stopping feeding of a raw material bin, stopping a discharging spiral, turning off natural gas and a spray gun, stopping a special-shaped fan after 10 minutes, stopping an air flow drying draught fan, stopping a crushing system, stopping a crushing discharging spiral, operating for 20 minutes, stopping a grader, stopping a mill, stopping a vortex fan, operating for 10 minutes, stopping a crushing and dedusting draught fan, stopping a quick-release system, stopping the quick-release discharging spiral 1 and the discharging spiral 2, turning off the natural gas, stopping the spray gun, operating for 30 minutes, stopping the quick-release dust-removing draught fan, operating for 1 hour, stopping circulating water when the temperature of the quick-release furnace is reduced to 90 ℃, and stopping an air compressor;

s5, starting a balling plate, adding a proper amount of seeds into the balling plate, starting a spraying and starting feeding system to feed after the balling plate operates stably, and adjusting the discharge amount and the water addition amount according to the capacity of materials in the balling plate;

s6, stopping the machine, digging out the seeds which do not grow in the balling plate, forming the materials in the balling plate at one time, stopping spiral blanking after the materials in the balling plate are formed at one time, stopping adding water after 5 minutes, and cleaning the balling plate;

s7, sugar coating processing, namely, guiding the alumina balls in the storage bin into a sugar coating pot, starting the sugar coating pot, controlling the water spraying amount according to the water content of the semi-finished product balls, stopping the sugar coating pot after the surfaces of the alumina balls are smooth and have no burrs or desizing phenomena, opening the storage bin, putting the semi-finished product packaging bags into the storage bin, cleaning the sugar coating pot, and transporting the packaging bags filled with the semi-finished products to a specified position for health preservation, wherein the material containing amount of the alumina balls in the sugar coating pot is 5cm lower than the lower edge of the sugar coating pot;

s8, roasting, feeding, starting a vertical furnace fan, powering on a natural gas burner, igniting, raising to a process temperature, starting a ball suction fan, and discharging;

s9, stopping the vertical furnace, closing a lower valve of the vertical furnace, closing a burner and shutting down a fan of the vertical furnace;

and S10, packaging, opening a bin valve for screening, and weighing the packaged activated alumina.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.