Pyrolysis granulation carbon black drying equipment

Abstract

The utility model provides pyrolysis granulation carbon black drying equipment, which belongs to the technical field of pyrolysis carbon black granulation and comprises a barrel, a first lifting plate and a second lifting plate. The barrel is driven by the transmission part to rotate; the first lifting plates are evenly distributed in the circumferential direction of the barrel and extend along the inner side of the barrel, and the first lifting plates are fixedly connected to the inner side of the barrel. The multiple groups of second lifting plates are circumferentially and uniformly distributed around the central axis of the cylinder body, each group of second lifting plates extend from one end to the other end in the cylinder body, and the two ends of the second lifting plates are connected with the two ends of the cylinder body through fixing pieces; the fixing piece further comprises a fixing ring and a triangular support. The two ends of the cylinder are fixedly connected with fixing rings respectively. The two ends of the triangular support are fixedly connected with the fixing ring, and the triangular support is fixedly connected with the second lifting plate. The carbon black particle drying device solves the technical problems of caking and adhesion when carbon black particles are dried in the prior art, and has the advantages of being good in drying effect and capable of effectively improving drying efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal cracking carbon black granulation, in particular to a thermal cracking carbon black drying device. Background Art

[0002] Recycling of waste tires can not only alleviate the pressure on the environment and reduce pollution, but also achieve effective recycling of resources. At present, the methods for processing waste tires include prototype modification, production of recycled rubber and rubber powder, incineration and pyrolysis, among which pyrolysis technology is a very potential method for processing waste tires. Waste tire pyrolysis technology is to thermally decompose waste tires in anoxic or inert gas to produce pyrolysis gas, pyrolysis oil and carbon residue. These products can be further processed and converted into high-value products with various uses. Compared with traditional treatment methods, pyrolysis can not only recover high value-added products, but also recover nearly 70% of energy, with high economic and environmental benefits.

[0003] Granulating pyrolysis carbon black to form carbon black particles is an important operation for the recycling of pyrolysis carbon black. However, carbon black particles contain a certain amount of moisture and have a certain degree of viscosity. It is easy to agglomerate and stick together during the drying process. If the materials stick together, it is easy to affect the working efficiency of the granulation carbon black dryer equipment and affect the service life of the equipment. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objectives, and advantages of the present application more readily apparent.

[0005] The utility model provides a pyrolysis granulation carbon black drying device, which solves the technical problems of agglomeration and stickiness existing in the drying of existing carbon black particles, and has the characteristics of good drying effect and being able to effectively improve drying efficiency.

[0006] The utility model discloses a pyrolysis granulation carbon black drying equipment, comprising a cylinder, a first material lifting plate, and a second material lifting plate; the cylinder rotates under the drive of a transmission member; a plurality of the first material lifting plates are evenly distributed along the circumference of the cylinder and extend along the inner side of the cylinder, and the first material lifting plates are fixedly connected to the inner side of the cylinder; a plurality of groups of the second material lifting plates are evenly distributed circumferentially around the central axis of the cylinder, each group of the second material lifting plates extends from one end to the other end of the cylinder, and the two ends of the second material lifting plates are connected to the two ends of the cylinder through a fixing member; the fixing member further comprises a fixing ring and a triangular bracket; the two ends of the cylinder are respectively fixedly connected to the fixing ring; the two ends of the triangular bracket are fixedly connected to the fixing ring, and the triangular bracket is fixedly connected to the second material lifting plate.

[0007] In some embodiments, the triangular bracket includes two triangular frames and three connecting rods, the two triangular frames are each in the same plane as the fixed rings located at both ends of the cylinder, and the triangular frames are fixedly connected to the fixed rings; the three connecting rods extend from one end inside the cylinder to the other end, and the connecting rods are perpendicular to the plane where the triangular frames are located, the two end points of the connecting rods coincide with the vertices of the triangular frames, and the second lifting plate is fixedly connected to the connecting rods.

[0008] In some embodiments, the center of the circular surface of the cylinder and the triangular frame in the same plane coincides with the center of the triangular frame; the triangular frame is fixedly connected to the fixing ring through a linear support; one end of the support is connected to the vertex of the triangular frame, and the other end is connected to the inner side of the fixing ring.

[0009] In some embodiments, the straight line where each of the supports is located passes through the center of the triangular frame.

[0010] In some embodiments, three groups of the second material lifting plates are fixed by the three connecting rods and are evenly distributed circumferentially around the central axis of the cylinder, and each group of the second material lifting plates includes three second material lifting plates.

[0011] In some of the embodiments, a hot air furnace connected to the cylinder is also included.

[0012] In some embodiments, the feed port of the barrel is connected to the discharge port of the granulator.

[0013] In some of the embodiments, the feed inlet of the granulator is connected to the discharge outlet of the granulation powder dust collector through a screw conveyor.

[0014] In some of the embodiments, the feed inlet of the granulation powder dust collector is connected to the discharge outlet of the powder conveying screw machine through a bucket elevator, and the powder conveying screw machine is connected to the powder finished product silo dust collector.

[0015] In some of the embodiments, the feed port of the powder conveying screw machine is connected to the discharge port of the grinder.

[0016] In some of the embodiments, the feed inlet of the grinder is connected to the discharge outlet of the silo.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a pyrolysis granulation carbon black drying equipment, which realizes sufficient and uniform stirring of carbon black particles in the cylinder by arranging a first lifting plate on the inner side of the cylinder and a second lifting plate in the cylinder, so that all carbon black particles are fully dried, avoiding the agglomeration and sticking problems caused by the presence of moisture in the carbon black particles, and has the characteristics of good drying effect and effectively improving drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a pyrolysis granulation carbon black drying device provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the assembly structure of the fixing ring, the triangular bracket and the second lifting plate of the degranulated carbon black drying equipment provided by the embodiment of the utility model;

[0022] Figure 3 Another schematic diagram of the assembly structure of the fixing ring, the triangular bracket and the second lifting plate of the degranulated carbon black drying equipment provided by the embodiment of the utility model;

[0023] In the above figures: 11, cylinder; 12, first lifting plate; 13, second lifting plate; 14, fixing ring; 15, triangular bracket; 2, hot air furnace; 3, granulator; 4, granulation powder dust collector; 5, powder conveying screw machine; 6, bucket elevator; 7, powder finished product silo dust collector; 8, grinder; 9, silo. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] The utility model embodiment provides a pyrolysis granulation carbon black drying device, Figure 1-3 The following is a schematic diagram of the structure and partial assembly structure of the pyrolysis granulation carbon black drying equipment according to the embodiment of the utility model. Figure 1-3As shown, the pyrolysis granulation carbon black drying equipment includes a cylinder 11, a first lifting plate 12, and a second lifting plate 13; the cylinder 11 rotates under the drive of the transmission member; a plurality of first lifting plates 12 are evenly distributed along the circumference of the cylinder 11 and extend along the inner side of the cylinder 11, and the first lifting plates 12 are fixedly connected to the inner side of the cylinder 11; a plurality of groups of second lifting plates 13 are evenly distributed around the central axis of the cylinder 11, and each group of second lifting plates 13 extends from one end to the other end of the cylinder 11, and the two ends of the second lifting plates 13 are connected to the two ends of the cylinder 11 through a fixing member; the fixing member further includes a fixing ring 14 and a triangular bracket 15; the two ends of the cylinder 11 are respectively fixedly connected to the fixing ring 14; the two ends of the triangular bracket 15 are fixedly connected to the fixing ring 14, and the triangular bracket 15 is fixedly connected to the second lifting plates 13. The above-mentioned pyrolysis granulation carbon black drying equipment realizes the full and uniform stirring of the carbon black particles in the cylinder 11 by setting the first lifting plate 12 inside the cylinder 11 and setting the second lifting plate 13 inside the cylinder 11, so that all the carbon black particles are fully dried, avoiding the agglomeration and sticking problems caused by the presence of water in the carbon black particles, and has the characteristics of good drying effect and can effectively improve the drying efficiency. Among them, the lifting plate is an important component inside the drying equipment. Its function is to continuously turn and lift the material in the cylinder 11 during the drying process, so that the entire material space can be covered by hot air, so that the material can be evenly heated and dried. The equipment avoids the large emission of smoke and exhaust gas, which pollutes the environment, and the uneven heating, the high temperature is difficult to control, and it is easy to cause the local temperature of the material to be excessively sintered and spontaneously combusted. At the same time, it also overcomes the defects of high energy consumption and low fuel utilization of the existing drying equipment. The setting method of the lifting plate (including the first lifting plate 12 and the second lifting plate 13) in the above embodiment lifts the dry material and evenly scatters it in the air to achieve the drying effect. At the same time, the lifting plate can also be equipped with scrapers, heating, cooling and other devices to further improve the efficiency and function of the dryer. The lifting plate of the above equipment (double-rotor lifting system) is suitable for various granular and powdered materials, and is widely used in drying equipment in mining, metallurgy, building materials, chemical industry and other industries. By configuring the lifting plate, the agglomeration and sticking of materials can be avoided. The materials are broken up and separated, and fully contacted with high-temperature hot air. While reducing the drying time of the materials, the materials are prevented from sticking to each other. It is imperative to solve the low efficiency and safety problems of pyrolysis high-temperature heating, which have long plagued the survival and development of production enterprises.

[0026] In order to improve the stability of the connection and ensure the uniformity of stirring, the triangular bracket 15 includes two triangular frames and three connecting rods. The two triangular frames are in the same plane as the fixing rings 14 located at both ends of the cylinder 11, and the triangular frames are fixedly connected to the fixing rings 14; the three connecting rods extend from one end inside the cylinder 11 to the other end, and the connecting rods are perpendicular to the plane where the triangular frames are located, and the two ends of the connecting rods coincide with the vertices of the triangular frames, and the second lifting plate 13 is fixedly connected to the connecting rods. Furthermore, the center of the circular surface where the cylinder 11 and the triangular frame are in the same plane coincides with the center of the triangular frame; the triangular frame is fixedly connected to the fixing ring 14 through a linear support; one end of the support is connected to the vertex of the triangular frame, and the other end is connected to the inner side of the fixing ring 14; the straight line where each support is located passes through the center of the triangular frame.

[0027] In some embodiments, three groups of second material lifting plates 13 are fixed by three connecting rods and are evenly distributed circumferentially around the central axis of the cylinder 11 , and each group of second material lifting plates 13 includes three second material lifting plates 13 .

[0028] In order to provide stable heat transfer to the carbon black particles in the cylinder 11 , a hot air furnace 2 connected to the cylinder 11 is also included.

[0029] The feed port of the above-mentioned cylinder 11 is vertically arranged at the upper part of the left kiln head and connected to the built-in feed chute. The heated hot blast furnace 2 is arranged on the left side of the kiln head, and the burner of the hot blast furnace 2 is installed on the left end plate of the furnace body. The pyrolysis non-condensable gas is used as the heating fuel. The high-temperature flue gas passes through the flue gas duct arranged on the right side of the hot blast furnace 2 and is connected to the flue gas inlet of the front kiln head of the cylinder 11 to heat the material in the cylinder 11. Among them, the front kiln head and the cylinder 11 are dynamically matched, and the front kiln head is provided with a sealing fish scale to prevent the material dust inside the cylinder 11 from leaking and the outside air from entering. The feed end and the discharge end are provided with 6 pieces of 35° inclined copying plates, namely the first lifting plates 12, which are rigidly connected to the cylinder 11 to guide the incoming materials into the cylinder 11. The cylinder 11 and the first lifting plate 12 are provided with anti-sticking measures to avoid sticking of materials. The lifting plates are combined with various structures according to the changes in the physical properties of the materials during the drying process. In addition to the first lifting plates 12 arranged along the circumference of the cylinder 11, a circle of three groups of 9 second lifting plates 13 assemblies are arranged in the center of the cylinder 11, which are arranged axially along the cylinder 11 from the feed end to the discharge end, so that the material forms a uniform material curtain in the cylinder and fully exchanges heat with the hot flue gas.

[0030] Specifically, different lifting plates are set inside the cylinder 11 according to the material characteristics of the cracking granulation carbon black at different stages, and the first lifting plates 12 are 110°, 180°, 135° and inclined from the feed end to the discharge end. Several lifting plates with different angles are installed in the cylinder 11, which can ensure that the material can be evenly distributed in the cross section of the cylinder 11 and improve thermal efficiency. The second lifting plate 13 built into the cylinder 11 is divided into three groups and is set at 110°, 180°, and 135° from the feed end to the discharge end. Its transmission protective cover is set on the left side of the cylinder 11, and a driven large gear ring is set on the cylinder 11. The driving device reducer is provided with a driving gear to drive the cylinder 11 to run in a counterclockwise direction. The flue gas discharged from the exhaust port at the rear kiln tail is treated by the dust collector and meets the emission standards. The cylinder 11 is placed on the front and rear supporting wheels, and a supporting wheel cover is also provided on the rear supporting wheel. The two groups of supporting wheels jointly lift the cylinder 11 for operation. A circle of three groups of first lifting plates 12 are provided in the middle of the dryer cylinder 11, and a circle of three groups of nine second lifting plates 13 are provided in the center of the cylinder 11, which are arranged axially along the cylinder 11 from the feed end to the discharge end. The fixing ring 14 is rigidly connected to the dryer cylinder 11 and is used to fix the built-in double rotor lifting plate assembly. Three fixed supports are provided on the fixing ring 14 of the built-in double rotor lifting plate assembly, which are used to fix the triangular bracket 15 of the built-in double rotor lifting plate assembly. The built-in double rotor lifting plate assembly is divided into three single-component support frames. From the feed end to the discharge end of the built-in double rotor lifting plate assembly, a certain number of lifting plates are provided on the single-component support frame. The built-in double-rotor lifting plate assembly triangular bracket 15 is connected to the built-in double-rotor lifting plate assembly single-branch component bracket, the single-branch component bracket is arranged in a triangle and rigidly connected to the built-in double-rotor lifting plate assembly single-branch component assembly. The discharge port of the double-positioned lifting plate dryer is set at the lower part of the right kiln tail.

[0031] In order to ensure the granulation effect and avoid the generation of dust, the feed port of the cylinder 11 is connected to the discharge port of the granulator 3; the feed port of the granulator 3 is connected to the discharge port of the granulation powder dust collector 4 through a screw machine; the feed port of the granulation powder dust collector 4 is connected to the discharge port of the powder conveying screw machine 5 through a bucket elevator 6, and the powder conveying screw machine 5 is connected to the powder finished product silo dust collector 7; the feed port of the powder conveying screw machine 5 is connected to the discharge port of the grinder 8; the feed port of the grinder 8 is connected to the discharge port of the silo 9.

[0032] The crude carbon after pyrolysis is transported to the feed port of the crude carbon black dust collector silo 9 through a conveying device, and the feed port of the crude carbon black dust collector silo 9 is set on the upper left side of the silo body. The crude carbon black dust collector silo 9 is a vertical structure, and an upper material level meter is set on the upper left side of the crude carbon black dust collector silo 9, which is interlocked with the feeding conveying device to control the upper material level in the silo. The lower cone on the right side of the crude carbon black dust collector silo 9 is provided with a lower material level meter, which is interlocked with the discharge valve of the lower crude carbon black dust collector silo 9 and the discharge lifting screw machine of the crude carbon black dust collector silo 9 to control the lower material level in the silo. The lower discharge port of the lower crude carbon black dust collector silo 9 is provided with a discharge valve, and the discharge port of the discharge valve is connected to the feed port of the discharge lifting screw machine of the crude carbon black dust collector silo 9. A dust collector is provided on the upper part of the crude carbon black dust collector silo 9. The air outlet of the dust collector is arranged on the right side of the top of the silo 9 and is connected to the fan duct. The negative pressure air volume is provided by the fan of the crude carbon black dust collector. The discharge port of the discharge and lifting screw machine of the crude carbon black dust collector silo 9 is connected to the feed port of the vertical grinder 8 to provide materials for the vertical grinder 8. After entering the vertical grinder 8, the materials are driven by the main motor through the reducer to rotate the grinding disc. The materials enter the vertical mill main unit through the screw conveyor and fall to the center of the grinding disc due to gravity. At the same time, the airflow generated by the fan enters the main unit from the air inlet for grinding. Under the action of centrifugal force, the materials move evenly from the center of the grinding disc to the edge. When passing through the roller area on the grinding disc, they are crushed by the grinding roller. Large pieces of materials are directly crushed, and fine particles are squeezed to form a material layer for inter-particle crushing. Under the action of the rotor blades of the classifier, the coarser particles are knocked down by the blades and returned to the grinding disc for grinding. The powder conveying pipeline cyclone dust collector is vertically set on the upper right side of the mill. The qualified fine powder will be taken out of the powder selection system with the negative pressure airflow through the upper air outlet of the cyclone dust collector, enter the dust removal equipment, and then collected by the powder collector to become the finished product. The powder discharged from the lower discharge port of the cyclone dust collector is connected to the feed port of the powder conveying screw machine 5 through the discharge port of the cyclone dust collector, and the discharged powder enters the bucket of the bucket elevator 6. The powder conveying screw machine 5 is set at the bottom of the powder finished product silo dust collector 7, and the discharge port of the powder conveying screw machine 5 of the powder finished product silo dust collector 7 is connected to the interface of the powder conveying screw machine 5 of the cyclone dust collector, and discharged into the bucket of the bucket elevator 6. The powder conveyed by the bucket elevator 6 enters the feed port of the granulating powder dust collector 4, which is vertically arranged on the upper part of the silo top, and the discharge port of the granulating powder dust collector 4 is arranged at the lower part of the lower cone, connected with the feed port of the discharge valve, and the discharge port of the discharge valve is connected with the feed port of the feeding screw machine of the granulating powder dust collector 4. The discharge port of the feeding screw machine of the granulating powder dust collector 4 is connected with the feed port of the pyrolytic carbon black granulator 3.

[0033] The working process of the above pyrolysis granulation carbon black drying equipment is:

[0034] The granulated carbon black particles enter the cylinder 11 of the drying equipment from the front end of the kiln head. The cylinder 11 is provided with lifting plates with multiple different inclination angles, such as 110°, 180°, 135° and inclined lifting plates, from the feeding end to the discharging end, so that the carbon black particles entering are inclined at a certain angle and rotate slowly along the circumferential direction, so that the material entering the cylinder 11 will produce a process of rolling along the circumferential direction and moving toward the kiln tail along the lifting plates with different inclination angles. At the same time, the wet carbon black particles are heated in the kiln by the high-temperature flue gas entering from the kiln head, and are discharged from the kiln tail of the dryer through the process of removing moisture in the carbon black particles by heating.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pyrolysis granulation carbon black drying equipment, characterized in that, include A cylinder body, wherein the cylinder body rotates under the drive of the transmission member; A first material lifting plate, wherein a plurality of the first material lifting plates are evenly distributed along the circumference of the cylinder and extend along the inner side of the cylinder, and the first material lifting plates are fixedly connected to the inner side of the cylinder; A second material lifting plate, a plurality of groups of the second material lifting plates are evenly distributed around the central axis of the cylinder, each group of the second material lifting plates extends from one end to the other end of the cylinder, and the two ends of the second material lifting plates are connected to the two ends of the cylinder through a fixing member; the fixing member further includes: A fixing ring, to which both ends of the cylinder are fixedly connected; A triangular bracket, both ends of which are fixedly connected to the fixing ring, and the triangular bracket is fixedly connected to the second material lifting plate.

2. The pyrolysis granulation carbon black drying equipment according to claim 1, characterized in that: The triangular bracket includes two triangular frames and three connecting rods. The two triangular frames are respectively in the same plane as the fixing rings located at both ends of the cylinder, and the triangular frames are fixedly connected to the fixing rings; the three connecting rods extend from one end to the other end inside the cylinder, and the connecting rods are perpendicular to the plane where the triangular frames are located, the two end points of the connecting rods coincide with the vertices of the triangular frames, and the second lifting plate is fixedly connected to the connecting rods.

3. The pyrolysis granulation carbon black drying equipment according to claim 2, characterized in that: The center of the circular surface of the cylinder and the triangular frame in the same plane coincides with the center of the triangular frame; the triangular frame is fixedly connected to the fixing ring through a linear support; one end of the support is connected to the vertex of the triangular frame, and the other end is connected to the inner side of the fixing ring; the straight lines where the supports are located pass through the center of the triangular frame.

4. The pyrolysis granulation carbon black drying equipment according to claim 2, characterized in that: The three groups of the second material lifting plates are fixed by the three connecting rods and are evenly distributed circumferentially around the central axis of the cylinder, and each group of the second material lifting plates includes three second material lifting plates.

5. The pyrolysis granulation carbon black drying equipment according to claim 1, characterized in that: Also included is a hot air furnace connected to the cylinder.

6. The pyrolysis granulation carbon black drying equipment according to claim 1, characterized in that: The feed port of the cylinder is connected to the discharge port of the granulator.

7. The pyrolysis granulation carbon black drying equipment according to claim 6, characterized in that: The feed inlet of the granulator is connected with the discharge outlet of the granulation powder dust collector through a screw conveyor.

8. The pyrolysis granulation carbon black drying equipment according to claim 7, characterized in that: The feed inlet of the granulating powder dust collector is connected to the discharge outlet of the powder conveying screw machine through a bucket elevator, and the powder conveying screw machine is connected to the powder finished product silo dust collector.

9. The pyrolysis granulation carbon black drying equipment according to claim 8, characterized in that: The feed port of the powder conveying screw machine is connected to the discharge port of the grinder.

10. The pyrolysis granulation carbon black drying equipment according to claim 9, characterized in that: The feed inlet of the grinder is connected to the discharge outlet of the silo.

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