Thermal cracking crude carbon black conveying equipment

Abstract

The utility model provides thermal cracking crude carbon black conveying equipment, which belongs to the technical field of leftover powder conveying after waste rubber pyrolysis, and comprises a front buffer storage bin, a cyclone dust collector, a negative pressure pipeline, a fan and a dust removal assembly, the cyclone dust collector comprises a shell, a cyclone dust collector feed port, a cyclone dust collector discharge port and a cyclone dust collector air outlet; a feed port of the cyclone dust collector is arranged above the side surface of the shell, a discharge port of the cyclone dust collector is arranged at the bottom of the shell, and an air outlet of the cyclone dust collector is arranged at the top of the shell; a feed port of the cyclone dust collector is connected with a discharge port of the front buffer stock bin; one end of the negative pressure pipeline is connected with an air outlet of the cyclone dust collector; an air inlet of the fan is connected with the other end of the negative pressure pipeline; the dust removal assembly is connected with an air outlet of the fan. The pyrolytic carbon black conveying device solves the problems that in the existing pyrolytic carbon black conveying process, dust is large in the conveying process, and the conveying effect is poor, and has the advantages that carbon black and dust can be effectively separated, and the conveying effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying powder of waste rubber leftovers after pyrolysis, in particular to a pyrolysis crude carbon black conveying device. Background Art

[0002] Pyrolysis of waste tires involves an irreversible thermochemical reaction in an oxygen-free or oxygen-deficient atmosphere, using high temperatures to decompose organic matter in waste tires, releasing volatile products and forming solid char. This incomplete thermal degradation process can produce gaseous, liquid, and solid products. This method can completely pyrolyze waste tires into useful products such as pyrolysis oil, pyrolysis carbon black, and pyrolysis non-condensable gases. Transporting the pyrolysis carbon black is a crucial step in ensuring its recovery and utilization. However, existing pyrolysis carbon black transport processes are plagued by high dust levels and poor transport efficiency. Utility Model Content

[0003] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0004] The utility model provides a pyrolysis crude carbon black conveying device, which solves the problems of large dust and poor conveying effect in the existing pyrolysis carbon black conveying process, and has the characteristics of effectively separating carbon black and dust and having good conveying effect.

[0005] The utility model discloses a thermal cracking crude carbon black conveying equipment, comprising a front buffer silo, a cyclone dust collector, a negative pressure pipe, a fan, and a dust removal assembly; the cyclone dust collector comprises a shell, a cyclone dust collector feed port, a cyclone dust collector discharge port, and a cyclone dust collector air outlet; the cyclone dust collector feed port is arranged above the side of the shell, the cyclone dust collector discharge port is arranged at the bottom of the shell, and the cyclone dust collector air outlet is arranged at the top of the shell; the cyclone dust collector feed port is connected to the discharge port of the front buffer silo; one end of the negative pressure pipe is connected to the cyclone dust collector air outlet; the air inlet of the fan is connected to the other end of the negative pressure pipe; and the dust removal assembly is connected to the air outlet of the fan.

[0006] In some embodiments, an isolation chamber is further provided in the inner cavity surrounded by the shell of the cyclone dust collector.

[0007] In some embodiments, a material distribution screw conveyor connected to the discharge port of the cyclone dust collector is further included; the material distribution screw conveyor further includes a cylinder, a rotating shaft sleeved in the cylinder, spiral blades sleeved outside the rotating shaft, and a transmission member that drives the rotating shaft and the spiral blades to rotate; a material distribution screw conveyor feed port connected to the discharge port of the cyclone dust collector is opened on the upper part of the cylinder; and a material distribution screw conveyor discharge port is opened on the left and right sides of the lower part of the cylinder.

[0008] In some embodiments, each of the material distribution screw conveyor discharge ports is connected to a rear buffer silo, and the rear buffer silo is provided with an upper level meter and a lower level meter.

[0009] In some embodiments, the rear cache silo is fixed by a silo body bracket, and an ear-type support connected to the silo body bracket is provided outside the silo body of the rear cache silo. The ear-type support and the silo body bracket are split, and a weighing piece is provided on the silo body bracket between the ear-type support and the silo body bracket.

[0010] In some embodiments, a solenoid valve is provided between the feed port of the rear buffer silo and the discharge port of the material distribution screw conveyor, and the discharge port of the rear buffer silo is connected to the material distribution screw conveyor; the solenoid valve is interlocked with the upper level meter and the lower level meter provided on the rear buffer silo.

[0011] In some embodiments, an upper material level meter and a lower material level meter are provided on the front buffer silo, and the upper material level meter and the lower material level meter provided on the front buffer silo are interlocked with the fan.

[0012] In some embodiments, a first dust collector is provided on the top of the front buffer silo, and an arch-breaking air hammer is also provided in the front buffer silo.

[0013] In some embodiments, the dust removal assembly includes a second dust collector, and the air inlet of the second dust collector is connected to the air outlet of the fan through a positive pressure duct.

[0014] In some embodiments, a filter bag and a pulse valve are provided in the upper bin body of the second dust collector, an ash hopper is provided in the lower bin body of the second dust collector, and the ash outlet of the ash hopper is connected to the ash conveying spiral machine.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a thermal cracking crude carbon black conveying equipment. By arranging a cyclone dust collector and coordinating with a negative pressure pipe and a fan, negative pressure conditions are formed on the connecting pipe between the front buffer silo and the cyclone dust collector, and on the connecting pipe between the cyclone dust collector and the dust removal component, which is conducive to ensuring the conveying effect of carbon black and is suitable for various carbon black materials that are easy to agglomerate, easy to volatilize, and highly viscous. At the same time, the coordinated use of the cyclone dust collector and the dust removal component, combined with the negative pressure condition, ensures the efficient separation between carbon black and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a pyrolysis crude carbon black conveying device provided in an embodiment of the present utility model;

[0019] In the above figures: 1. Front buffer silo; 2. Cyclone dust collector; 3. Fan; 4. Dust removal assembly; 5. Material distribution screw conveyor; 6. Rear buffer silo; 7. Silo body bracket; 8. Ear support; 9. Material feeding screw machine. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] The present invention provides a thermal cracking crude carbon black conveying device. Figure 1 This is a schematic diagram of the structure of the thermal cracking crude carbon black conveying equipment according to an embodiment of the present invention. Figure 1As shown, the thermal cracking crude carbon black conveying equipment includes a front buffer silo 1, a cyclone dust collector 2, a negative pressure pipe, a fan 3, and a dust removal component 4; the cyclone dust collector 2 includes a shell, a cyclone dust collector 2 feed port, a cyclone dust collector 2 discharge port and a cyclone dust collector 2 air outlet; the cyclone dust collector 2 feed port is arranged above the side of the shell, the cyclone dust collector 2 discharge port is arranged at the bottom of the shell, and the cyclone dust collector 2 air outlet is arranged at the top of the shell; the cyclone dust collector 2 feed port is connected to the discharge port of the front buffer silo 1; one end of the negative pressure pipe is connected to the cyclone dust collector 2 outlet; the air inlet of the fan 3 is connected to the other end of the negative pressure pipe; the dust removal component 4 is connected to the air outlet of the fan 3. The pyrolysis crude carbon black conveying equipment is provided with a cyclone dust collector 2, and is also provided with a negative pressure pipe and a fan 3. A negative pressure condition is formed on the connecting pipe between the front buffer silo 1 and the cyclone dust collector 2, and on the connecting pipe between the cyclone dust collector 2 and the dust removal component 4. This is conducive to ensuring the conveying effect of carbon black and is suitable for various carbon black materials that are easy to agglomerate, volatile, and highly viscous. At the same time, the coordinated use of the cyclone dust collector 2 and the dust removal component 4, combined with the negative pressure condition, ensures the efficient separation between carbon black and dust. Furthermore, an isolation chamber is also provided in the inner cavity surrounded by the shell of the cyclone dust collector 2.

[0022] The above-mentioned pyrolysis crude carbon black conveying equipment is equipped with a cyclone dust collector 2 on the negative pressure conveying pipeline. The centrifugal force of the cyclone dust collector 2 is used to separate dust particles from the gas. Its basic working principle is to pass the dust-laden gas through the cyclone isolation chamber. Under the action of centrifugal force, the gas rotates along the wall of the cyclone chamber and forms a vortex, causing the dust particles to be deposited on the wall by the centrifugal force, thereby achieving the purpose of dust removal. The cyclone dust collector 2 adopts a tangential design, so that the incoming powder rotates along the shell. The feed port of the cyclone dust collector 2 is set at the upper left side of the shell and connected to the discharge port of the negative pressure pipeline. The air outlet of the cyclone dust collector 2 is set vertically at the top of the shell and connected to the air inlet of the negative pressure pipeline. The isolation chamber is set below the air outlet of the cyclone dust collector 2. Its function is to prevent the dust powder from breaking and overflowing, thereby ensuring the cleanliness and safety of the factory environment, improving the filtration rate, and reducing the amount of dust emissions. The discharge port of the cyclone dust collector 2 is set at the lower part of the shell and connected to the feed port of the discharge valve.

[0023] In order to ensure the smooth transportation of cracking carbon black, a main and a backup discharging method is set up. Specifically, the thermal cracking crude carbon black conveying equipment also includes a dividing screw conveyor 5 connected to the discharge port of the cyclone dust collector 2; the dividing screw conveyor 5 further includes a cylinder, a rotating shaft sleeved in the cylinder, spiral blades sleeved outside the rotating shaft, and a transmission part that drives the rotating shaft and the spiral blades to rotate; the upper part of the cylinder is provided with a feeding port of the dividing screw conveyor 5 connected to the discharge port of the cyclone dust collector 2; the lower part of the cylinder is provided with a dividing screw conveyor 5 discharge port on the left and right.

[0024] In some embodiments, each material distribution screw conveyor 5 discharge port is connected to a rear buffer silo 6, and an upper material level meter and a lower material level meter are provided on the rear buffer silo 6. The rear buffer silo 6 is fixed by a silo body bracket 7, and an ear-type support 8 connected to the silo body bracket 7 is provided outside the silo body of the rear buffer silo 6. The ear-type support 8 and the silo body bracket 7 are separate, and a weighing piece is provided on the silo body bracket 7 between the ear-type support 8 and the silo body bracket 7. A solenoid valve is provided between the feed port of the rear buffer silo 6 and the material distribution screw conveyor 5 discharge port, and the material distribution screw conveyor 5 discharge port of the rear buffer silo 6 is connected to a material feeding screw machine 9; the solenoid valve is interlocked with the upper material level meter and the lower material level meter provided on the rear buffer silo 6. Among them, the solenoid valve and the upper material level meter and the lower material level meter provided on the rear buffer silo 6 can be electrically connected through a PLC, thereby realizing the transmission of signals and the operation of instructions.

[0025] The left end of the material-dividing screw conveyor 5 is provided with a driving device, which drives the screw shaft to feed materials to the left and right dropout ports of the material-dividing screw conveyor 5 respectively. The left dropout port and the right dropout port correspond to the feed port of the 1# rear buffer silo 6 and the feed port of the 2# rear buffer silo 6 respectively. The left dropout port of the material-dividing screw conveyor 5 is set at the lower part of the left end of the cylinder body and is connected to the discharge valve of the left dropout port. The right dropout port of the material-dividing screw conveyor 5 is set at the lower part of the right end of the cylinder body and is connected to the electric discharge valve of the right dropout port. The 1# rear buffer silo 6 and the 2# rear buffer silo 6 are arranged on the left and right sides, and the material level in the silo is controlled by the upper and lower material level meters of their respective silos. At the same time, they are also interlocked with the upper left dropout port discharge valve and the right dropout port electric discharge valve. The feed port of the 1# rear buffer silo 6 is set in the middle of the silo top, and the discharge port is set at the bottom of the silo cone, connected to the 1# rear buffer silo 6 material feeding screw machine 9. An upper material level meter is set on the upper left side of the silo wall of the 1# rear buffer silo 6, and a lower material level meter is set at the lower part of the cone on the right side of the silo wall. The upper silo body is provided with 4 ear-type supports 8, which are installed separately from the silo body bracket 7. Four 1# rear buffer silo 6 weighing modules (weighing parts) are set on the bracket to weigh the amount of material in the silo. The feed port of the 2# rear buffer silo 6 is set in the middle of the silo top, and the discharge port is set at the bottom of the silo cone, connected to the 2# rear buffer silo 6 material feeding screw machine 9. An upper level meter is provided on the upper left side of the silo wall of the 2# rear buffer silo 6, and a lower level meter is provided on the lower right side of the conical body of the silo wall. The upper silo body is provided with four ear-type supports 8, which are installed separately from the silo body bracket 7. Four weighing modules (weighing parts) of the 1# rear buffer silo 6 are provided on the bracket to weigh the amount of material in the silo. A common silo conveying screw machine is provided at the bottom of the 1# rear buffer silo 6 and the 2# rear buffer silo 6. The powder output from the discharge port of the 1# rear buffer silo 6 feeding screw machine 9 and the discharge port of the 2# rear buffer silo 6 feeding screw machine 9 enter the left side feed port of the silo common conveying screw machine (feeding screw machine 9) and the right side feed port of the silo common conveying screw machine (feeding screw machine 9) respectively. Under the action of the screw shaft driven by the driving device of the silo common conveying screw machine, the powder moves to the right side to the discharge port of the silo common conveying screw machine and is then transported to the next step for further processing.

[0026] Furthermore, the front buffer silo 1 is provided with an upper level meter and a lower level meter, and the upper level meter and the lower level meter provided on the front buffer silo 1 are interlocked with the fan 3. A first dust collector is provided on the top of the front buffer silo 1, and an arch-breaking air hammer is also provided in the front buffer silo 1. The crude carbon black, the residual waste material after the thermal cracking of the waste rubber, is transported to the crude carbon black cache silo (front buffer silo 1) in the pyrolysis workshop for storage. The feed port of the front buffer silo 1 is vertically arranged on the left side of the silo roof, and the silo roof dust collector of the front buffer silo 1 is vertically arranged on the right side of the silo roof. An upper level meter is provided on the upper part of the right side of the silo wall of the front buffer silo 1, which is interlocked with the upper conveyor to control the upper material level in the silo. A lower level meter is provided on the lower part of the left cone of the front buffer silo 1, which is interlocked with the negative pressure fan 3 to control the lower material level in the silo. To prevent powder bridging and congestion within the silo, a pneumatic hammer is installed on the front of the lower conical body of the front buffer silo 1. This prevents adhesion, blockage, and bridging during conveying, ensuring smooth material flow. A discharge port is located at the lower conical body of the front buffer silo 1, and a discharge valve is installed below the discharge port, which is connected to the negative pressure pipeline. The feed port of the negative pressure pipeline is connected to the discharge port of the discharge valve, and the other end is connected to the feed port of the negative pressure pipeline flow control valve.

[0027] In some embodiments, the dust removal component 4 includes a second dust collector, and the air inlet of the second dust collector is connected to the air outlet of the fan 3 through a positive pressure pipe. A filter bag and a pulse valve are provided in the upper bin of the second dust collector, and an ash hopper is provided in the lower bin of the second dust collector, and the ash outlet of the ash hopper is connected to the ash conveying screw. The air inlet of the negative pressure fan 3 is connected to the negative pressure outlet duct, and a control valve is provided on the negative pressure outlet duct, which is connected to the air outlet of the cyclone dust collector 2. The discharged dust-laden gas is transported to the next dust collector for processing through the air outlet of the negative pressure fan 3. The dust-laden gas discharged from the air outlet of the negative pressure fan 3 enters the air inlet of the dust collector through the positive pressure air supply duct and the positive pressure air duct control valve. A filter bag and a pulse valve are provided in the upper bin of the dust collector. An ash hopper is provided at the lower part of the dust collector bin body, and an ash drop port is provided at the lower part of the ash hopper. The ash drop port is connected to the ash inlet of the dust collector ash feeding spiral machine. The dust collector ash feeding spiral machine drive device is provided on the right side, and the dust collector ash feeding spiral machine ash discharge port is provided at the lower right part of the cylinder body.

[0028] Negative pressure conveying is a conveying method in which the powdered material after pyrolysis is sucked out from the buffer silo in the pyrolysis workshop by the action of negative pressure difference, and then sent to the temporary storage silo in the carbon black deep processing workshop through a conveying pipeline. By utilizing the negative pressure difference, the crude carbon black can be easily transported to every corner, thereby achieving the most effective conveying effect. The above-mentioned pyrolysis crude carbon black conveying equipment is equipped with a cyclone dust collector 2 on the negative pressure pipeline, and utilizes the centrifugal force of the cyclone dust collector 2 to separate the dust particles in the gas. Its basic working principle is to pass the dust-laden gas through the cyclone chamber, and the gas rotates along the wall of the cyclone chamber under the action of centrifugal force, and forms a vortex, so that the dust particles are affected by the centrifugal force and deposited on the wall, thereby achieving the purpose of dust removal. The above-mentioned pyrolysis crude carbon black conveying equipment is the industry's first choice in terms of production efficiency, safety, environmental protection, economic benefits, and return on investment. Its biggest highlight is:

[0029] 1. Wide range of applications: The newly developed negative pressure conveying method is suitable for various powdery materials, including those that are easy to agglomerate, volatile, and highly viscous.

[0030] 2. Energy saving: Compared with other conveying methods such as pneumatic conveying, negative pressure conveying has obvious energy-saving effect.

[0031] 3. Low noise: The noise during negative pressure conveying is low and has little impact on the production site environment.

[0032] The working process of the above-mentioned thermal cracking crude carbon black conveying equipment is as follows:

[0033] After the cracked carbon black enters the chamber surrounded by the outer shell of the cyclone dust collector 2, the dust-laden gas passes through the cyclone isolation chamber. Under the action of centrifugal force, the gas rotates along the wall of the cyclone chamber and forms a vortex, so that the dust particles are affected by the centrifugal force and deposited on the wall, thereby achieving the purpose of dust removal. The carbon black is discharged through the discharge port of the cyclone dust collector 2, and the dust-laden gas enters the dust removal component 4 through the air outlet of the cyclone dust collector 2 for further dust removal.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0035] The above-described embodiments merely represent several implementations of the present invention. 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 a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A thermal cracking crude carbon black conveying device, characterized in that: include Front buffer silo; A cyclone dust collector, comprising a housing, a cyclone dust collector feed port, a cyclone dust collector discharge port, and a cyclone dust collector air outlet; the cyclone dust collector feed port is located above the side of the housing, the cyclone dust collector discharge port is located at the bottom of the housing, and the cyclone dust collector air outlet is located at the top of the housing; the cyclone dust collector feed port is connected to the discharge port of the front buffer silo; a negative pressure pipe, one end of which is connected to the air outlet of the cyclone dust collector; a fan, wherein the air inlet of the fan is connected to the other end of the negative pressure pipe; A dust removal component is connected to the air outlet of the fan.

2. The thermal cracking crude carbon black conveying equipment according to claim 1, characterized in that: An isolation chamber is also provided in the inner cavity surrounded by the shell of the cyclone dust collector.

3. The thermal cracking crude carbon black conveying equipment according to claim 1, characterized in that: It also includes a material distribution screw conveyor connected to the cyclone dust collector discharge port; the material distribution screw conveyor further includes a cylinder, a rotating shaft sleeved in the cylinder, spiral blades sleeved outside the rotating shaft, and a transmission member that drives the rotating shaft and the spiral blades to rotate; a material distribution screw conveyor feed port connected to the cyclone dust collector discharge port is opened on the upper part of the cylinder; a material distribution screw conveyor discharge port is opened on the left and right sides of the lower part of the cylinder.

4. The thermal cracking crude carbon black conveying equipment according to claim 3, characterized in that: The discharge port of each material distribution screw conveyor is connected to a rear buffer silo, and the rear buffer silo is provided with an upper material level meter and a lower material level meter.

5. The thermal cracking crude carbon black conveying equipment according to claim 4, characterized in that: The rear cache silo is fixed by a silo body bracket. An ear-type support connected to the silo body bracket is provided outside the silo body of the rear cache silo. The ear-type support and the silo body bracket are split. A weighing piece is provided on the silo body bracket between the ear-type support and the silo body bracket.

6. The thermal cracking crude carbon black conveying equipment according to claim 4, characterized in that: A solenoid valve is provided between the feed port of the rear buffer silo and the discharge port of the material distribution screw conveyor, and the discharge port of the rear buffer silo is connected to the material distribution screw conveyor; the solenoid valve is interlocked with the upper level meter and the lower level meter provided on the rear buffer silo.

7. The thermal cracking crude carbon black conveying equipment according to claim 1, characterized in that: An upper material level meter and a lower material level meter are provided on the front buffer silo, and the upper material level meter and the lower material level meter provided on the front buffer silo are interlocked with the fan.

8. The thermal cracking crude carbon black conveying equipment according to claim 1, characterized in that: A first dust collector is provided on the top of the front buffer silo, and an arch-breaking air hammer is also provided in the front buffer silo.

9. The thermal cracking crude carbon black conveying equipment according to claim 1, characterized in that: The dust removal assembly includes a second dust collector, and the air inlet of the second dust collector is connected to the air outlet of the fan through a positive pressure pipe.

10. The thermal cracking crude carbon black conveying equipment according to claim 9, characterized in that: A filter bag and a pulse valve are provided in the upper bin body of the second dust collector, an ash hopper is provided in the lower bin body of the second dust collector, and an ash outlet of the ash hopper is connected to an ash conveying spiral machine.

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