Pyrolytic carbon black grinding and collecting equipment
By combining a two-stage grinder and a dust collector, the problem of insufficient fineness and uniformity in pyrolytic carbon black grinding and collection equipment was solved, thus achieving efficient carbon black powder processing.
Patent Information
- Application Number
- CN202520321352.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing grinding and collection equipment for processing pyrolytic carbon black suffers from problems such as insufficient grinding fineness and uniformity, as well as low processing efficiency.
The design employs a two-stage grinding mill, combined with the opening and closing of valves, and utilizes a bidirectional unloading screw conveyor and a transition buffer silo to control the particle size of powder. Furthermore, a cyclone dust collector and a bag filter are used to improve the fineness and uniformity of the powder.
This ensures the fineness and uniformity of the final product, improves processing efficiency, and significantly enhances the uniformity and processing speed of carbon black powder.
Smart Images
Figure CN223888172U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pyrolysis carbon black processing technical field especially relates to a pyrolysis carbon black grinding collection equipment. BACKGROUND
[0002] Through the heat cracking treatment to the waste tire, the organic matter in the waste tire can be cracked by high temperature, volatile products are escaped and solid coke is formed. The waste tire can be completely cracked into pyrolysis oil, pyrolysis carbon black and pyrolysis non-condensable gas and other useful products by using the method. The carbon black produced by pyrolysis cannot be directly used in industrial production, and the pyrolysis carbon black needs to be ground and granulated to realize the reuse of pyrolysis carbon black.
[0003] However, the grinding fineness and uniformity of the existing grinding and collecting equipment when treating pyrolysis carbon black do not meet the requirements, and the processing efficiency is low. UTILITY MODEL CONTENT
[0004] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, purposes and advantages of the application are more concise and easy to understand.
[0005] The utility model provides a pyrolysis carbon black grinding collection equipment, solve the grinding fineness and uniformity of grinding and collecting equipment when treating pyrolysis carbon black do not meet the requirements, and the technical problem of low processing efficiency, with the characteristics of high processing efficiency, and the granularity of the carbon black obtained by grinding is uniform, and the fineness meets the requirements.
[0006] The utility model discloses a pyrolysis carbon black grinding collection equipment, include: first grinder, second grinder is connected with the first grinder's discharge port through first pipeline, is equipped with first valve on the first pipeline, bidirectional unloading screw conveyer is connected with the discharge port of second grinder through second pipeline, is connected with the discharge port of first grinder through third pipeline, is equipped with second valve on the second pipeline, is equipped with third valve on the third pipeline, including: cylinder, has the feed inlet and the discharge port set up in the both sides of feed inlet, spiral shaft is sleeved in the cylinder, spiral blade is sleeved in the spiral shaft outside, and the rotation direction of spiral blade located in the both sides of feed inlet is opposite, first transition buffer bin is connected with bidirectional unloading screw conveyer through the discharge port of one bidirectional unloading screw conveyer, second transition buffer bin is connected with bidirectional unloading screw conveyer through the discharge port of another bidirectional unloading screw conveyer.
[0007] In some embodiments, the first transition buffer bin is connected to the bidirectional unloading screw conveyer through a fourth valve, and the second transition buffer bin is connected to the bidirectional unloading screw conveyer through a fifth valve.
[0008] In some embodiments, the inlet end of the third pipe is connected to the first pipe, and the outlet end of the third pipe is connected to the second pipe; and the inlet end of the third pipe is connected to one side of the inlet end of the first valve, and the outlet end of the third pipe is connected to one side of the outlet end of the second valve.
[0009] In some embodiments, the pyrolytic carbon black grinding and collecting equipment further includes a cyclone dust collector; the powder inlet of the cyclone dust collector is connected to the outlet of the first transition buffer silo and the second transition buffer silo.
[0010] In some embodiments, the powder inlet of the cyclone dust collector is connected to the outlet of the first transition buffer silo and the second transition buffer silo via a fourth pipe; along the powder conveying direction, the fourth pipe is sequentially equipped with an air inlet valve, a first safety valve, a cutting valve, and a second safety valve.
[0011] In some embodiments, along the powder conveying direction, the air inlet valve is located in front of the connection between the first transition buffer silo and the fourth pipe; the slitting valve is located behind the connection between the first transition buffer silo and the fourth pipe, and in front of the connection between the second transition buffer silo and the fourth pipe; the second safety valve is located behind the connection between the second transition buffer silo and the fourth pipe.
[0012] In some embodiments, the pyrolytic carbon black grinding and collecting equipment also includes a bag filter connected to the outlet of a cyclone dust collector.
[0013] In some embodiments, the pyrolytic carbon black grinding and collecting equipment also includes a Roots blower connected to a bag filter.
[0014] In some embodiments, the pyrolytic carbon black grinding and collecting equipment also includes a powder collection hopper connected to the discharge port of the cyclone dust collector and the discharge port of the bag filter dust collector.
[0015] In some embodiments, a dust collector is vertically installed on the top of the powder collection silo.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model provides a pyrolytic carbon black grinding and collection device. By setting up a two-stage grinding mill and coordinating the opening and closing of valves, large or small particle size powder can be obtained as needed. For powder with high fineness requirements, a two-stage grinding method is used to first crush it into smaller particles and then perform secondary crushing, which can ensure the fineness and uniformity of the final product. Furthermore, by limiting the structure of the bidirectional unloading screw conveyor and setting up two transition buffer silos, the material conveying and storage efficiency is effectively guaranteed, which is conducive to improving processing efficiency. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the pyrolytic carbon black grinding and collecting device provided in an embodiment of the present invention;
[0020] Figure 2 This is a partial structural schematic diagram of the pyrolytic carbon black grinding and collecting device provided in an embodiment of the present invention;
[0021] Figure 3 This is another partial structural schematic diagram of the pyrolytic carbon black grinding and collecting device provided in an embodiment of the present invention;
[0022] In the above figures: 1. First grinding mill; 2. Second grinding mill; 3. Bidirectional unloading screw conveyor; 301. Cylinder; 302. Screw shaft; 303. Screw blades; 4. First transition buffer silo; 5. Second transition buffer silo; 6. Cyclone dust collector; 7. Bag dust collector; 8. Roots blower; 9. Powder collection silo; 10. Silo top dust collector; 1101. First pipe; 1102. Second pipe; 1103. Third pipe; 1104. Fourth pipe; 1201. First valve; 1202. Second valve; 1203. Third valve; 1204. Fourth valve; 1205. Fifth valve; 1206. Inlet valve; 1207. First safety valve; 1208. Slitting valve; 1209. Second safety valve. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.
[0024] This utility model embodiment provides a pyrolytic carbon black grinding and collection device. Figure 1 This is a schematic diagram of the structure of a pyrolytic carbon black grinding and collecting device according to an embodiment of the present invention. (Reference) Figure 1 , 2As shown, the pyrolytic carbon black grinding and collecting equipment includes: a first grinding mill 1; a second grinding mill 2, connected to the discharge port of the first grinding mill via a first pipe 1101, the first pipe 1101 being equipped with a first valve 1201; and a bidirectional unloading screw conveyor 3, connected to the discharge port of the second grinding mill 2 via a second pipe 1102, and connected to the discharge port of the first grinding mill 1 via a third pipe 1103; the second pipe 1102 is equipped with a second valve 1202, and the third pipe 1103 is equipped with a third valve 1201. Valve 1203 includes: a cylinder 301 having an inlet and outlets located on both sides of the inlet; a screw shaft 302 sleeved inside 301; screw blades 303 sleeved outside the screw shaft, with the screw blades on both sides of the inlet rotating in opposite directions; a first transition buffer hopper 4 connected to a bidirectional unloading screw conveyor 3 via the outlet of a bidirectional unloading screw conveyor; and a second transition buffer hopper 5 connected to the bidirectional unloading screw conveyor 3 via the outlet of another bidirectional unloading screw conveyor.
[0025] The coarse carbon black from the pyrolysis of waste tires is fed into the inlet of the first grinding mill 1. After being ground to the set particle size requirement, it exits through the outlet and enters the first pipeline 1101 under the action of negative pressure. A first valve 1201 is installed on the first pipeline. When the first grinding mill 1 is running alone, the first valve 1201 is closed to prevent carbon black from entering the second grinding mill 2. A third pipeline 1103 is connected to the inlet end of the first valve 1201. A third valve 1203 is installed on the third pipeline 1103. The third valve 1203 works in conjunction with the first valve 1201 to switch between the two when the first grinding mill 1 is running alone. When the first grinding mill 1 is performing single-stage grinding, the first valve 1201 is closed, and the third valve 1203 is opened simultaneously, allowing the powder ground by the first grinding mill 1 to bypass the second grinding mill 2 and directly enter the inlet of the bidirectional unloading screw conveyor 3 through the third pipeline.
[0026] The feed inlet of the bidirectional discharge screw conveyor 3 is vertically positioned at the upper center of the screw cylinder 301, and is connected to the second valve 1202 of the discharge port of the second grinder 2 via a second pipe 1102. During two-stage grinding by the first grinder 1 and the second grinder 2, the first valve 1201 is opened while the third valve 1203 is closed, allowing the powder ground by the first grinder 1 to enter the second grinder 2 for further grinding. The feed inlet of the second grinder 2 is connected to the discharge port of the first grinder 1 via the first pipe 1101, and the discharge port of the second grinder 2 is connected to the second valve 1202 via the second pipe 1102, allowing the powder that has reached the required particle size to fall into the feed inlet of the bidirectional discharge screw conveyor 3. After entering the screw cylinder 301 through the feed inlet 13, the left and right screw blades, under the action of the screw drive device, move the powder to the left and right. The lower part of the cylinder 301 of the bidirectional unloading screw conveyor 3 is provided with a left discharge port and a right discharge port. The left discharge port is connected to the first transition buffer silo 4, and the right discharge port is connected to the second transition buffer silo 5. The ground carbon black can enter the first transition buffer silo 4 and the second transition buffer silo 5 through the two discharge ports respectively.
[0027] The aforementioned pyrolytic carbon black grinding and collection equipment, by setting up a two-stage grinding mill and coordinating the opening and closing of valves, can obtain large or small particle sizes of powder as needed. For powders with high fineness requirements, a two-stage grinding method is used to first crush them into smaller particles and then perform secondary crushing, which can ensure the fineness and uniformity of the final product. Furthermore, by limiting the structure of the bidirectional unloading screw conveyor and setting up two transition buffer silos, the efficiency of material conveying and storage is effectively guaranteed, which is conducive to improving processing efficiency.
[0028] In some embodiments, the first transition buffer silo 4 is connected to the bidirectional unloading screw conveyor 3 via a fourth valve 1204, and the second transition buffer silo 5 is connected to the bidirectional unloading screw conveyor 3 via a fifth valve 1205. The first and second transition buffer silos 4 and 5 are respectively equipped with an upper level gauge and a lower level gauge. The fourth valve 1204 is interlocked with the upper level gauge of the first transition buffer silo 4 to control the material level inside the first transition buffer silo 4. When the upper level gauge senses that the powder exceeds the upper limit, it automatically closes the fourth valve 1204 to prevent powder from continuing to enter the first transition buffer silo 4. The fifth valve 1205 is interlocked with the upper level gauge of the second transition buffer silo 5 to control the material level inside the second transition buffer silo 5. When the upper level gauge senses that the powder exceeds the upper limit, it automatically closes the fifth valve 1205 to prevent powder from continuing to enter the second transition buffer silo 5. The first and second transition buffer silos 4 are arranged side-by-side, and their feeding and unloading are alternately used.
[0029] The first transition buffer silo 4 is equipped with a lower level gauge at the bottom of its conical body. This lower level gauge is interlocked with a frequency converter to control the material level within the silo. A manual gate valve and a frequency converter are installed below the outlet of the first transition buffer silo 4. The powder discharged by the frequency converter falls into the fourth pipe 1104. The second transition buffer silo 5 is also equipped with a lower level gauge at the bottom of its conical body. This lower level gauge is interlocked with a frequency converter to control the material level within the silo. A manual gate valve and a frequency converter are installed below the outlet of the second transition buffer silo. The powder discharged by the frequency converter falls into the fourth pipe 1104.
[0030] In some embodiments, the feed end of the third pipe 1103 is connected to the first pipe 1101, and the discharge end of the third pipe 1103 is connected to the second pipe 1102; furthermore, the feed end of the third pipe 1103 is connected to one side of the feed end of the first valve 1201, and the discharge end of the third pipe 1103 is connected to one side of the discharge end of the second valve 1202. This configuration ensures smooth switching between single-machine grinding and dual-machine grinding modes while improving efficiency and shortening the carbon black transportation process.
[0031] like Figure 3 As shown, the pyrolytic carbon black grinding and collecting equipment also includes a cyclone dust collector 6; the powder inlet of the cyclone dust collector is connected to the outlets of the first transition buffer silo 4 and the second transition buffer silo 5. A discharge port is provided at the lower part of the conical body of the cyclone dust collector, and a sealed discharge valve is provided at the lower part of the discharge port. The ground carbon black is processed by the cyclone dust collector, which effectively removes fine dust from the carbon black. The dust-removed carbon black enters the next processing step through the discharge port at the lower part of the cyclone dust collector.
[0032] To enhance safety, the powder inlet of the cyclone dust collector is connected to the outlets of the first transition buffer silo 4 and the second transition buffer silo 5 via a fourth pipe 1104. Along the powder conveying direction, the fourth pipe 1104 is sequentially equipped with an inlet valve 1206, a first safety valve 1207, a cutting valve 1208, and a second safety valve 1209. The safety valves are installed to prevent the internal pressure of the system from falling below a set value, thus protecting the equipment and personnel. Furthermore, along the powder conveying direction, the inlet valve 1206 is located before the connection between the first transition buffer silo 4 and the fourth pipe 1104; the cutting valve 1208 is located after the connection between the first transition buffer silo 4 and the fourth pipe 1104, and before the connection between the second transition buffer silo 5 and the fourth pipe 1104; the second safety valve 1209 is located after the connection between the second transition buffer silo 5 and the fourth pipe 1104.
[0033] To further improve the separation effect, the pyrolytic carbon black grinding and collecting equipment also includes a bag filter 7 connected to the outlet of the cyclone dust collector. The outlet of the cyclone dust collector is connected to the inlet of the bag filter, which is located in the middle of the left side of the hopper. A pulse valve is installed on the upper front of the bag filter 7 housing. An outlet is located on the upper left side of the bag filter housing, and the outlet of the bag filter 7 is connected to a negative pressure suction pipe. An airlock 46 and a vacuum pressure relief valve 47 are installed at the lower discharge port of the bag filter. The bag filter can further collect dust. The carbon black treated by the bag filter enters the next processing step through the discharge port.
[0034] To ensure negative pressure in the system, the pyrolytic carbon black grinding and collection equipment also includes a Roots blower 8 connected to the bag filter 7. The inlet of the Roots blower 8 is connected to a negative pressure suction duct, and the inlet is located at the bottom of the casing, while the exhaust outlet is vertically located at the top of the casing. The Roots blower 8 provides negative pressure for the entire conveying system.
[0035] In some embodiments, the pyrolytic carbon black grinding and collecting equipment further includes a powder collection hopper 9 connected to the discharge port of the cyclone dust collector 6 and the discharge port of the bag filter dust collector 7. The powder collection hopper 9 is detached from the lower support, and a set of weighing modules is installed at each of the four corners of the hopper body to automatically measure the weight of the powder entering the hopper. An upper level gauge is installed on the left side of the powder collection hopper 9, and a lower level gauge is installed on the right side. A conveying screw conveyor is installed at the discharge port of the powder collection hopper 9, with the discharge port of the conveying screw conveyor located at the lower left side of the screw cylinder.
[0036] Furthermore, a dust collector 10 is vertically installed on the top of the powder collection silo 9. The dust collector 10 is connected to the powder collection silo 9 through an air outlet on the right side of the top of the powder collection silo 9. The dust collector can remove floating dust from the powder collection silo 9.
[0037] In summary, the dual-grind self-collecting powder system for pyrolytic carbon black, through its two-stage synchronous grinding design, significantly improves processing speed and quality. Compared to a single grinder, the dual grinder halves the processing time, making it particularly suitable for high-volume, high-precision carbon black processing. Furthermore, the step-by-step grinding process of the dual grinder, compared to the lengthy grinding process of a single grinder, significantly improves the uniformity of the produced carbon black powder.
[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A pyrolytic carbon black grinding and collection device, characterized in that, include: First grinding machine; The second grinding mill is connected to the discharge port of the first grinding mill via a first pipe, and a first valve is provided on the first pipe; A bidirectional unloading screw conveyor is connected to the discharge port of the second grinding mill via a second pipe and to the discharge port of the first grinding mill via a third pipe; a second valve is provided on the second pipe, and a third valve is provided on the third pipe; comprising: The cylinder has a feed inlet and discharge outlets located on both sides of the feed inlet; A spiral shaft is fitted inside the cylinder; The spiral blades are sleeved outside the spiral shaft, and the spiral blades on both sides of the feed inlet have opposite rotation directions; The first transition buffer hopper is connected to the bidirectional unloading screw conveyor through the discharge port of the bidirectional unloading screw conveyor; The second transition buffer hopper is connected to the bidirectional unloading screw conveyor via the discharge port of another bidirectional unloading screw conveyor.
2. The pyrolytic carbon black grinding and collecting equipment according to claim 1, characterized in that, The first transition buffer silo is connected to the bidirectional unloading screw conveyor via a fourth valve, and the second transition buffer silo is connected to the bidirectional unloading screw conveyor via a fifth valve.
3. The pyrolytic carbon black grinding and collecting equipment according to claim 1, characterized in that, The inlet end of the third pipe is connected to the first pipe, and the outlet end of the third pipe is connected to the second pipe; the inlet end of the third pipe is connected to one side of the inlet end of the first valve, and the outlet end of the third pipe is connected to one side of the outlet end of the second valve.
4. The pyrolytic carbon black grinding and collecting equipment according to claim 1, characterized in that, The pyrolytic carbon black grinding and collecting equipment also includes a cyclone dust collector; the powder inlet of the cyclone dust collector is connected to the outlet of the first transition buffer silo and the second transition buffer silo.
5. The pyrolytic carbon black grinding and collecting equipment according to claim 4, characterized in that, The powder inlet of the cyclone dust collector is connected to the outlet of the first transition buffer silo and the second transition buffer silo through a fourth pipe; along the powder conveying direction, the fourth pipe is sequentially equipped with an air inlet valve, a first safety valve, a cutting valve, and a second safety valve.
6. The pyrolytic carbon black grinding and collecting equipment according to claim 5, characterized in that, Along the powder conveying direction, the air inlet valve is located in front of the connection between the first transition buffer silo and the fourth pipe; the cutting valve is located behind the connection between the first transition buffer silo and the fourth pipe, and in front of the connection between the second transition buffer silo and the fourth pipe; the second safety valve is located behind the connection between the second transition buffer silo and the fourth pipe.
7. The pyrolytic carbon black grinding and collecting device according to claim 4, characterized in that, The pyrolytic carbon black grinding and collecting equipment also includes a bag filter connected to the outlet of the cyclone dust collector.
8. The pyrolytic carbon black grinding and collecting device according to claim 7, characterized in that, The pyrolytic carbon black grinding and collecting equipment also includes a Roots blower connected to the bag filter.
9. The pyrolytic carbon black grinding and collecting device according to claim 7, characterized in that, The pyrolytic carbon black grinding and collecting equipment also includes a powder collection hopper connected to the discharge port of the cyclone dust collector and the discharge port of the bag dust collector.
10. The pyrolytic carbon black grinding and collecting device according to claim 9, characterized in that, A dust collector is vertically installed on the top of the powder collection silo.