Device for prolonging vulcanization speed of carbon black rubber compound and use method of device
By designing a carbon black treatment device including a granulation water system and a drum dryer, carbon black drying particles with acidic functional groups are formed, and the problem of excessive vulcanization of traditional carbon black kneading rubber is solved, and more uniform kneading and more stable rubber product performance is achieved.
Patent Information
- Application Number
- CN202510212158.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-04-22
AI Technical Summary
The vulcanization rate of traditional carbon black and rubber is too fast when mixing, resulting in uneven mixing, affecting the performance stability of rubber products, and may cause scorching, reducing product qualification rate and increasing production costs.
A device including a granulation water system, exhaust dehydration device, static mixer, powdered carbon black storage tank, wet granulator, drum dryer and exhaust bag filter is designed. By mixing granulated water and binder, wet granulation and drum drying, carbon black drying particles with a large number of acidic functional groups on the surface are formed, and the vulcanization speed is delayed.
It effectively extends the vulcanization speed of carbon black mixing rubber, provides more abundant operating time, improves mixing uniformity and performance stability of rubber products, reduces early vulcanization, improves product qualification rate and reduces production costs.
Smart Images
Figure FT_1
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of carbon black mixing, and more specifically to a device for prolonging the vulcanization speed of carbon black mixed rubber and a use method thereof. Background Art
[0002] In the rubber industry, carbon black is an extremely important reinforcing agent and filler, and its mixing and processing performance with rubber has a key impact on the quality of rubber products. In the traditional carbon black production process, the prepared carbon black tends to have a faster vulcanization rate when mixed with rubber, which limits the processing performance of the carbon black mixed rubber to a certain extent. Too fast a vulcanization rate results in a shorter operating time during the processing of the mixed rubber, which can easily lead to uneven mixing and affect the performance stability of rubber products. Moreover, rapid vulcanization may also cause scorching, reduce product qualification rate, and increase production costs. Therefore, how to extend the vulcanization rate of carbon black mixed rubber and improve its processing performance has become a problem to be solved in this field. Summary of the invention
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one aspect of the present invention aims to provide a device for extending the vulcanization speed of carbon black compound rubber, the device comprising a granulation water system, an exhaust and dehydration device, a static mixer, a powdered carbon black storage tank, a wet granulator, a drum dryer and an exhaust bag filter; the outlet end of the granulation water system and the outlet end of the exhaust and dehydration device are respectively connected to the inlet end of the wet granulator through the static mixer, the outlet end of the powdered carbon black storage tank is connected to the inlet end of the wet granulator, the inlet end of the drum dryer is connected to the outlet end of the wet granulator, and the outlet end of the drum dryer is connected to the inlet end of the wet granulator through the exhaust bag filter.
[0004] Preferably, the granulation water system includes a granulation water tank, a granulation water pump, a granulation water flow meter, a granulation water flow regulating valve, a binder tank, a binder pump, a binder flow meter, a binder flow regulating valve and a binder check valve, and the granulation water tank and the binder tank are respectively connected to the inlet end of the wet granulator through a static mixer.
[0005] Preferably, a granulation water pump, a granulation water flow meter and a granulation water flow regulating valve are sequentially arranged between the granulation water tank and the static mixer, and a binder pump, a binder flow meter, a binder flow regulating valve and a binder check valve are sequentially arranged between the binder tank and the static mixer.
[0006] Preferably, the device further comprises an airtight valve, and the powdered carbon black storage tank is connected to the wet granulator via the airtight valve.
[0007] Preferably, the device further comprises a tail gas combustion furnace, and the tail gas combustion furnace is connected to the drum dryer.
[0008] Preferably, the device further comprises an exhaust gas condensate water tank, and the exhaust gas dehydration device is connected to the static mixer via the exhaust gas condensate water tank.
[0009] Preferably, the device also includes an exhaust condensate pump, an exhaust condensate flow meter, an exhaust condensate flow regulating valve and an exhaust condensate check valve, and the exhaust condensate pump, the exhaust condensate flow meter, the exhaust condensate flow regulating valve and the exhaust condensate check valve are arranged in sequence between the exhaust condensate tank and the static mixer.
[0010] Another aspect of the present invention is to provide a method for using a device for extending the vulcanization rate of carbon black mixed rubber, wherein the specific steps of the method are as follows: S1. Introducing the exhaust gas containing carbon black into the exhaust bag filter to filter the carbon black; S2. The filtered exhaust gas enters the exhaust gas dehydration device for dehydration treatment, converting gaseous water and other condensable substances into liquid state and collecting them in the exhaust gas condensate tank; S3. The granulation water tank is led out of the granulation water through the granulation water pump, the granulation water flow meter and the granulation water flow regulating valve, the binder tank is led out of the binder through the binder pump, the binder flow meter, the binder flow regulating valve and the binder check valve, and the exhaust condensate water tank is led out of the condensate through the exhaust condensate water pump, the exhaust condensate water flow meter, the exhaust condensate water flow regulating valve and the exhaust condensate water check valve to form a mixed liquid in the static mixer; S4. The powdered carbon black is transported from the powdered carbon black storage tank to the wet granulator through an airtight valve. Under the action of the granulator, the mixed liquid and the carbon black are fully contacted to form wet carbon black particles; S5. The wet carbon black particles are sent into a drum dryer, and are heated and dried by an exhaust gas combustion furnace to remove moisture, thereby forming dry carbon black particles with a large number of acidic functional groups on the surface. The exhaust gas generated by heating enters the exhaust bag filter again.
[0011] Preferably, the circulating condensed water temperature in the exhaust gas dehydration device in S2 is ≤40°C, and the exhaust gas outlet temperature is ≤85°C.
[0012] Preferably, the pH value of the condensed water in the exhaust condensate water tank in S2 is 2-4.
[0013] The beneficial effects of the present invention are as follows: The carbon black prepared by the device and method of the present invention has a large number of acidic functional groups on the surface. When mixed with rubber, it can effectively extend the vulcanization rate of the mixed rubber by about 10%, provide more ample operating time for the processing process, facilitate uniform mixing, and improve the performance stability of rubber products.
[0014] The occurrence of early vulcanization is reduced, thereby improving the product qualification rate and reducing production costs.
[0015] The entire preparation process is environmentally friendly and reduces environmental pollution. The exhaust bag filter filters the carbon black to prevent it from being discharged into the atmosphere; the exhaust gas is condensed and dehydrated and the exhaust condensate is recycled to improve resource utilization.
[0016] Additional aspects and advantages of the invention will become apparent from the following description, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a flow chart of the equipment of an embodiment of the present invention; in, Figure 1 The corresponding relationship between the reference numerals and the component names is as follows: 1 is a granulation water tank, 2 is a granulation water pump, 3 is a granulation water flow meter, 4 is a granulation water flow regulating valve, 5 is a binder tank, 6 is a binder pump, 7 is a binder flow meter, 8 is a binder flow regulating valve, 9 is a binder check valve, 10 is an exhaust dehydration device, 11 is an exhaust condensate water pump, 12 is an exhaust condensate water flow meter, 13 is an exhaust condensate water flow regulating valve, 14 is an exhaust condensate water check valve, 15 is a static mixer, 16 is a powdered carbon black storage tank, 17 is an airtight valve, 18 is a wet granulator, 19 is a drum dryer, 20 is an exhaust gas combustion furnace, 21 is an exhaust bag filter, and 22 is an exhaust condensate water tank. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0020] The present invention provides a device for extending the vulcanization speed of carbon black compound rubber, comprising a granulation water tank 1, a granulation water pump 2, a granulation water flow meter 3, a granulation water flow regulating valve 4, a binder tank 5, a binder pump 6, a binder flow meter 7, a binder flow regulating valve 8, a binder check valve 9, an exhaust dehydration device 10, an exhaust condensate water pump 11, an exhaust condensate water flow meter 12, an exhaust condensate water flow regulating valve 13, an exhaust condensate water check valve 14, a static mixer 15, a powdered carbon black storage tank 16, an airtight valve 17, a wet granulator 18, a drum dryer 19, an exhaust gas combustion furnace 20, an exhaust bag filter 21, and an exhaust condensate water tank 22.
[0021] The steps to use are as follows: S1. The exhaust gas containing carbon black is introduced into the exhaust bag filter 21 to filter the carbon black; S2. The filtered exhaust gas enters the exhaust gas dehydration device 10 for dehydration treatment, converting gaseous water and other condensable substances into liquid state, and collecting them in the exhaust gas condensate water tank 22; the circulating condensate water temperature in the exhaust gas dehydration device 10 is ≤40°C, the exhaust gas outlet temperature is ≤85°C, and the pH value of the condensate water in the exhaust gas condensate water tank 22 is 2-4; S3. Granulation water is drawn out from the granulation water tank 1 through the granulation water pump 2, the granulation water flow meter 3 and the granulation water flow regulating valve 4, the binder is drawn out from the binder tank 5 through the binder pump 6, the binder flow meter 7, the binder flow regulating valve 8 and the binder check valve 9, and the exhaust condensate water tank 22 is drawn out through the exhaust condensate water pump 11, the exhaust condensate water flow meter 12, the exhaust condensate water flow regulating valve 13 and the exhaust condensate water check valve 14 to form a mixed liquid in the static mixer 15; S4. The powdered carbon black is transported from the powdered carbon black storage tank 16 to the wet granulator 18 through the airtight valve 17. Under the action of the granulator, the mixed liquid is fully in contact with the carbon black to form wet carbon black particles; S5. The wet carbon black particles are sent into the drum dryer 19, and are heated and dried by the exhaust gas combustion furnace 20 to remove moisture, thereby forming dry carbon black particles having a large number of acidic functional groups on the surface. The exhaust gas generated by the heating enters the exhaust bag filter 21 again.
[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may also have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A device for extending the vulcanization speed of carbon black rubber mix, characterized in that: The device comprises a granulation water system, an exhaust gas dehydration device (10), a static mixer (15), a powdered carbon black storage tank (16), a wet granulator (18), a drum dryer (19) and an exhaust gas bag filter (21); the outlet end of the granulation water system and the outlet end of the exhaust gas dehydration device (10) are respectively connected to the inlet end of the wet granulator (18) through the static mixer (15), the outlet end of the powdered carbon black storage tank (16) is connected to the inlet end of the wet granulator (18), the inlet end of the drum dryer (19) is connected to the outlet end of the wet granulator (18), and the outlet end of the drum dryer (19) is connected to the inlet end of the exhaust gas dehydration device (10) through the exhaust gas bag filter (21).
2. A device for prolonging the vulcanization speed of carbon black rubber mix according to claim 1, characterized in that: The granulation water system comprises a granulation water tank (1), a granulation water pump (2), a granulation water flow meter (3), a granulation water flow regulating valve (4), a binder tank (5), a binder pump (6), a binder flow meter (7), a binder flow regulating valve (8) and a binder check valve (9). The granulation water tank (1) and the binder tank (5) are respectively connected to the inlet end of a wet granulator (18) via a static mixer (15).
3. A device for prolonging the vulcanization speed of carbon black rubber mix according to claim 2, characterized in that: A granulation water pump (2), a granulation water flow meter 3 and a granulation water flow regulating valve (4) are arranged in sequence between the granulation water tank (1) and the static mixer (15); and a binder pump (6), a binder flow meter (7), a binder flow regulating valve (8) and a binder check valve (9) are arranged in sequence between the binder tank (5) and the static mixer (15).
4. The device for prolonging the vulcanization speed of carbon black rubber mix according to claim 1, characterized in that: The device further comprises an airtight valve (17), and the powdered carbon black storage tank (16) is connected to the wet granulator (18) via the airtight valve (17).
5. The device for prolonging the vulcanization speed of carbon black rubber mix according to claim 1, characterized in that: The device further comprises a tail gas combustion furnace (20), and the tail gas combustion furnace (20) is connected to the drum dryer (19).
6. The device for prolonging the vulcanization speed of carbon black rubber mix according to claim 1, characterized in that: The device further comprises an exhaust gas condensate tank (22), and the exhaust gas dehydration device (10) is connected to the static mixer (15) via the exhaust gas condensate tank (22).
7. A device for prolonging the vulcanization speed of carbon black rubber mix according to claim 6, characterized in that: The device further comprises an exhaust condensate water pump (11), an exhaust condensate water flow meter (12), an exhaust condensate water flow regulating valve (13) and an exhaust condensate water check valve (14); the exhaust condensate water pump (11), the exhaust condensate water flow meter (12), the exhaust condensate water flow regulating valve (13) and the exhaust condensate water check valve (14) are sequentially arranged between the exhaust condensate water tank (22) and the static mixer (15).
8. A method for using a device for extending the vulcanization speed of carbon black mixed rubber, characterized in that: The specific steps of the method of use are: S1. The exhaust gas containing carbon black is introduced into the exhaust bag filter (21) to filter the carbon black; S2. The filtered exhaust gas enters the exhaust gas dehydration device (10) for dehydration treatment, converting gaseous water and other condensable substances into liquid state, and collecting them in the exhaust gas condensate tank (22); S3. The granulation water is led out of the granulation water tank (1) via the granulation water pump (2), the granulation water flow meter (3) and the granulation water flow regulating valve (4); the binder is led out of the binder tank (5) via the binder pump (6), the binder flow meter (7), the binder flow regulating valve (8) and the binder check valve (9); the exhaust condensate water tank (22) is led out of the condensate water via the exhaust condensate water pump (11), the exhaust condensate water flow meter (12), the exhaust condensate water flow regulating valve (13) and the exhaust condensate water check valve (14); and a mixed liquid is formed in the static mixer (15); S4. The powdered carbon black is transported from the powdered carbon black storage tank (16) to the wet granulator (18) through the airtight valve (17). Under the action of the granulator, the mixed liquid and the carbon black are fully contacted to form wet carbon black particles; S5. The wet carbon black particles are sent into a drum dryer (19), and are heated and dried in an exhaust gas combustion furnace (20) to remove moisture, thereby forming dry carbon black particles having a large number of acidic functional groups on the surface. The exhaust gas generated by the heating enters the exhaust bag filter (21) again.
9. The method for using the device for extending the vulcanization speed of carbon black mixed rubber according to claim 8, characterized in that: The circulating condensed water temperature in the exhaust gas dehydration device (10) in S2 is ≤40°C, and the exhaust gas outlet temperature is ≤85°C.
10. The method for using the device for extending the vulcanization speed of carbon black mixed rubber according to claim 8, characterized in that: The pH value of the condensed water in the exhaust condensed water tank (22) in S2 is 2-4.