CN-121972078-A - Carbon black granulating master batch external circulation system and application method thereof

CN121972078ACN 121972078 ACN121972078 ACN 121972078ACN-121972078-A

Abstract

The application relates to an external circulation system of carbon black granulating master batch and a use method thereof, wherein the system integrates a product storage tank, a cyclone separator, a dust suction fan, a dry granulating machine and a central processing system, and core equipment of the external circulation system of carbon black granulating master batch is in closed-loop association through material flow and air flow, wherein the front end of the external circulation system of carbon black granulating master batch is provided with the dry granulating machine which is used as a material processing unit; the cyclone separator is used as a classification unit and connected with the feeding of the dry granulator, the product storage tank is used as a medium-grade storage unit and connected with the feeding of the cyclone separator, the dust collection fan is used as an auxiliary unit and connected with the top of the cyclone separator and is responsible for air flow and dust recovery, and the control unit comprises an airtight valve and a central processing system, wherein the airtight valve is arranged at the outlet of the cyclone separator and the outlet of the product tank and is matched with frequency conversion to control the feeding amount. According to the application, by optimizing equipment configuration and process flow, efficient granulation of carbon black, efficient recovery of master batches and stable improvement of product quality are realized, and the method can be widely applied to a rear treatment process of carbon black.

Inventors

ZOU YU
ZHU HONGXU
ZHANG YAOYUE
LI MENGYUE
ZENG HUAYING
LIU HANJIN
LIANG MINGYONG

Assignees

中昊黑元化工研究设计院有限公司

Dates

Publication Date: 20260505
Application Date: 20260119

Claims (10)

1. An external circulation system for granulating carbon black master batches is characterized by comprising a product storage tank, a cyclone separator, a dust collection fan, a dry granulating machine and a central processing system, The outlet of the product storage tank is connected with the inlet of a first airtight valve, the outlet of the first airtight valve is connected with the inlet of the cyclone separator, the outlet of the cyclone separator is connected with the inlet of a second airtight valve, the outlet of the second airtight valve is connected with the inlet of the dry granulator, and the outlet of the dry granulator outputs qualified carbon black particles; the gas outlet of the cyclone separator is connected with the inlet of the dust collection fan, and the outlet of the dust collection fan is connected with the reprocessing filter bag device; Wherein the first and second air-tight valves are each equipped with a variable frequency motor and are both signally connected to the central processing system.
2. The external circulation system for carbon black granulating masterbatch of claim 1 wherein said first and second air-tight valves each comprise a motor, a sealing structure unit including a packing seal and a nitrogen seal assembly, a valve body for connecting piping, and a control interface unit.
3. The carbon black granulating masterbatch external circulation system according to claim 2, wherein the control interface unit comprises an RS485 and/or CAN interface, and the control interface unit is linked with a central processing system control module to realize automatic adjustment of feeding quantity and ensure masterbatch purity and stability.
4. An external circulation system for carbon black granulating masterbatch according to claim 1 wherein the outlet of said cyclone is located at the bottom thereof and the gas outlet of said cyclone is located at the top thereof.
5. The external circulation system for granulating carbon black master batch according to claim 1, wherein the cyclone separator sucks raw materials by adopting negative pressure, and separates particles from air flow by utilizing centrifugal force to realize gas-solid separation.
6. The external circulation system for carbon black granulating master batch according to claim 1, wherein the dust suction fan is provided with a filtering system for capturing and collecting fine dust generated in the production process and recovering valuable carbon black particles.
7. The external circulation system for granulating carbon black master batches according to claim 1, wherein the dry granulator is provided with an independent driving motor and a controller, the controller is in signal connection with the central processing system, and the dry granulator processes carbon black raw materials into regular master batches through the action of mechanical pressure and shearing force, and simultaneously uses the controller to adjust process parameters to adapt to the requirements of different carbon black types.
8. The external circulation system for carbon black granulating master batch according to claim 1, wherein the dry granulator is further provided with a conveying pipeline connected with the product storage tank for conveying the granular carbon black into the product storage tank for recycling as master batch.
9. The external circulation system for carbon black granulating master batches according to claim 1, wherein a feed opening air supply port is further arranged on a pipeline for conveying raw materials from the product storage tank to the cyclone separator.
10. A method of using the external circulation system for carbon black pelletization masterbatch according to any one of claims 1-9, comprising the steps of: s1, opening the first airtight valve, and putting carbon black granules in the product storage tank into a cyclone separator; S2, starting the dust collection fan, and absorbing the powdery carbon black in the product storage tank to a bag filter for reprocessing; s3, variable frequency adjusting the amount of master batch entering the dry granulating machine through the second airtight valve; And S4, monitoring and adjusting the whole process in real time through the central processing system, and ensuring the product quality and the production efficiency.

Description

Carbon black granulating master batch external circulation system and application method thereof Technical Field The application relates to the technical field of carbon black rear treatment, in particular to an external circulation system of carbon black granulating master batches and a using method thereof. Background The traditional dry-method carbon black granulating system adopts the method that carbon black master batch is manually added before granulating, the master batch reflux ratio of a granulator is actually adjusted according to the granulating effect of production, and the production is stopped when the master batch is adjusted to adjust the internal circulation granulating of the master batch. In view of the above, in order to improve the processing efficiency and the product quality of the carbon black, the invention provides an integrated dry-method carbon black granulating master batch external circulation system, which can automatically adjust the master batch amount in a granulator according to the product quality, has strong operability and can solve the problems in the prior art. Disclosure of Invention The invention aims to provide an integrated dry-process carbon black granulating master batch external circulation system, which realizes efficient granulating of carbon black, efficient recovery of master batch and stable improvement of product quality through integrating a cyclone separator, a product tank, a dry-process granulator, a dust suction fan, an airtight valve and other core equipment. In order to achieve the above object, according to one aspect of the present application, there is provided an external circulation system for granulating carbon black master batch, comprising a product storage tank, a cyclone separator, a dust suction fan, a dry granulator and a central processing system, wherein the outlet of the product storage tank is connected with the inlet of a first airtight valve, the outlet of the first airtight valve is connected with the inlet of the cyclone separator, the outlet of the cyclone separator is connected with the inlet of a second airtight valve, the outlet of the second airtight valve is connected with the inlet of the dry granulator, the outlet of the dry granulator outputs qualified carbon black particles, the gas outlet of the cyclone separator is connected with the inlet of the dust suction fan, the outlet of the dust suction fan is connected with a filter bag, and the first airtight valve and the second airtight valve are respectively provided with variable frequency motors and are both in signal connection with the central processing system. According to an embodiment of the application, the first and second gas-tight valves each comprise a motor, a sealing structure unit comprising a packing seal and a nitrogen seal assembly, a valve body for connecting the pipes, and a control interface unit. According to the embodiment of the application, the control interface unit comprises an RS485 and/or CAN interface, and is linked with the control module of the central processing system, so that the automatic adjustment of the feeding amount is realized, and the purity and stability of the master batch are ensured. According to an embodiment of the application, the outlet of the cyclone is located at its bottom and the gas outlet of the cyclone is located at its top. According to the embodiment of the application, the cyclone separator sucks raw materials by adopting negative pressure, and then separates particles from airflow by utilizing the centrifugal force effect, so that gas-solid separation is realized. According to the embodiment of the application, the dust collection fan is provided with a filtering system to capture and collect fine dust generated in the production process and recover valuable carbon black particles. According to the embodiment of the application, the dry-method granulator is provided with an independent driving motor and a controller, the controller is in signal connection with a central processing system, the dry-method granulator processes carbon black raw materials into regular master batches under the action of mechanical pressure and shearing force, and meanwhile, the controller is used for adjusting process parameters to adapt to the requirements of different carbon black types. According to an embodiment of the application, the dry granulator is further provided with a conveying pipeline connected with the product storage tank and used for conveying the granular carbon black into the product storage tank to be recycled as a master batch. According to the embodiment of the application, a feed opening air supply port is further arranged on the pipeline of the product storage tank for conveying raw materials to the cyclone separator. According to another aspect of the present application, there is provided a method for using the external circulation system for carbon black granulating masterbatch as described above, compr