Carbon black granulating and drying equipment

Abstract

The utility model provides carbon black granulating and drying equipment, which belongs to the technical field of pyrolysis carbon black treatment and comprises a barrel and a heating component. An accommodating space for accommodating granulated carbon black particles is defined by the cylinder body; the heating assembly is used for providing heat for the carbon black particles in the accommodating space and comprises a heating coil, a heating medium circulating pipeline and a heating medium storage tank; the heating coil is sleeved outside the cylinder body; the heating medium circulating pipeline is connected with the heating coil in series; a heating furnace and a circulating pump are arranged on the heating medium circulating pipeline; the bottom of the heating medium storage tank is connected with the heating medium circulating pipeline through a heating medium supplementing pipeline, and a heating medium is supplemented into the heating medium circulating pipeline. The utility model solves the technical problems of over-high temperature, non-uniform heating and low energy efficiency of the existing heating mode after pyrolytic carbon black powder granulation, and has the characteristics of uniform heating, low energy consumption and safety.

Description

Technical Field

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

[0002] With the rapid development of my country's economy and the general improvement of people's living standards, cars have gradually entered people's daily lives, resulting in a large number of waste tires. Recycling waste tires can not only alleviate their pressure on the environment and reduce pollution, but also achieve effective recycling of resources. At present, the methods for treating waste tires include prototype modification, production of recycled rubber and rubber powder, incineration and pyrolysis. Among them, pyrolysis technology is a very potential method for treating waste tires. The pyrolysis of waste tires is an irreversible thermochemical reaction in which organic matter in waste tires is cracked under an oxygen-free or oxygen-deficient atmosphere using high temperature to release volatile products and form solid coke. Gas, liquid and solid products can be formed during incomplete thermal degradation. This method can completely crack waste tires into useful products such as pyrolysis oil, pyrolysis carbon black and pyrolysis non-condensable gas. 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] For the pyrolytic carbon black produced by pyrolysis, after the traditional pyrolytic carbon black powder is granulated, direct heating is generally adopted, that is, the heating furnace is directly connected to the dryer, and the high-temperature gas generated by the combustion of the fuel is used to directly heat the material. However, this method has the following major disadvantages: large emissions of smoke and exhaust gas cause environmental pollution; uneven heating and high temperature that is difficult to control, which can easily cause excessive sintering and spontaneous combustion of the local temperature of the material; high energy consumption and low fuel utilization rate. 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, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a carbon black granulation and drying device, which solves the technical problems of excessively high temperature, uneven heating and low energy efficiency in the existing heating method after granulation of pyrolytic carbon black powder, and has the characteristics of uniform heating, low energy consumption and safety.

[0006] The utility model discloses a carbon black granulation and drying device, comprising a cylinder and a heating component; the cylinder forms a storage space for accommodating carbon black particles after granulation; the heating component is used to provide heat to the carbon black particles in the storage space, and comprises a heating coil, a heating medium circulation pipeline, and a heating medium storage tank; the heating coil is sleeved outside the cylinder; the heating medium circulation pipeline is connected in series with the heating coil, and a heating furnace and a circulation pump are arranged on the heating medium circulation pipeline; the bottom of the heating medium storage tank is connected to the heating medium circulation pipeline through a heating medium replenishing pipeline, and heating medium is replenished into the heating medium circulation pipeline.

[0007] In some embodiments, the heating furnace and the circulation pump are arranged in sequence along the circulation direction of the heating medium, and the outlet of the heating medium storage tank is connected to the outlet of the circulation pump through the heating medium replenishing pipeline.

[0008] In some of the embodiments, a check valve is provided on the heating medium replenishment pipeline.

[0009] In some of the embodiments, the top of the heating medium storage tank is also connected to the heating medium inlet of the heating medium circulation pipeline through an exhaust pipeline.

[0010] In some of the embodiments, an explosion-proof opening is provided on one side of the top of the heating medium storage tank.

[0011] In some of the embodiments, it further includes a fan connected to the cylinder and a pressure sensor disposed on the cylinder.

[0012] In some of the embodiments, it further includes a rotating shaft sleeved in the cylinder, a rotating blade sleeved outside the rotating shaft, and a transmission member connected to one end of the rotating shaft.

[0013] In some embodiments, the feed port of the barrel is connected to the discharge port of the granulator.

[0014] In some of the embodiments, the feed port of the granulator is connected to the discharge port of the buffer silo.

[0015] In some of the embodiments, the discharge port of the cylinder is connected to a bucket elevator, and the bucket elevator is connected to a finished product collection bin.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a carbon black granulation and drying equipment. By limiting the heating component, the coil is used to indirectly heat the carbon black particles in the accommodating space of the cylinder, which not only avoids the problem of excessively high heating temperature in the existing direct heating with open flame and high-temperature flue gas, but also the heated material does not contact with the high-temperature flue gas, the heated material will not spontaneously combust, and the flue gas emission is small, which meets the environmental protection requirements and ensures the uniformity of heating. In addition, by arranging a heating medium storage tank, the heating medium can be replenished in real time, which not only ensures the stability of heating, but also further ensures that the heating process is continuously and stably carried out, further ensures the uniformity of heating, reduces energy consumption and ensures the safety of the heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 A schematic diagram of the structure of the carbon black granulation and drying equipment provided in the embodiment of the utility model;

[0020] In the above figures: 1. Cylinder; 21. Heating coil; 22. Heating medium circulation pipeline; 23. Heating furnace; 24. Circulation pump; 25. Heating medium storage tank; 26. Heating medium replenishment pipeline; 27. Exhaust pipeline; 3. Fan; 4. Granulator; 5. Buffer silo; 6. Bucket elevator; 7. Finished product collection bin. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model embodiment provides a carbon black granulation and drying device, Figure 1 The structure diagram of the carbon black granulation and drying equipment according to the embodiment of the utility model is shown in FIG. Figure 1As shown, the carbon black granulation and drying equipment at least includes a cylinder 1 and a heating component; the cylinder 1 forms a storage space for accommodating carbon black particles after granulation; the heating component is used to provide heat to the carbon black particles in the storage space, including a heating coil 21, a heating medium circulation pipeline 22, and a heating medium storage tank 25; the heating coil 21 is sleeved outside the cylinder 1; the heating medium circulation pipeline 22 is connected in series with the heating coil 21, and a heating furnace 23 and a circulation pump 24 are provided on the heating medium circulation pipeline 22; the bottom of the heating medium storage tank 25 is connected to the heating medium circulation pipeline 22 through a heating medium replenishing pipeline 26, and the heating medium is replenished into the heating medium circulation pipeline 22. The carbon black granulation drying equipment limits the heating component and uses the coil to indirectly heat the carbon black particles in the accommodating space of the cylinder 1, which not only avoids the problem of excessively high heating temperature in the existing direct heating by open flame and high-temperature flue gas, but also the heated material does not contact with the high-temperature flue gas, the heated material will not spontaneously combust, and the flue gas emission is small, which meets the environmental protection requirements, and also ensures the uniformity of heating. In addition, by setting up a heating medium storage tank 25, the heating medium can be replenished in real time, which not only ensures the stability of heating, but also further ensures that the heating process is continuously and stably carried out, further ensures the uniformity of heating, reduces energy consumption, and ensures the safety of the heating process. In some embodiments, the heating furnace 23 and the circulating pump 24 are arranged in sequence along the circulation direction of the heating medium, and the outlet of the heating medium storage tank 25 is connected to the outlet of the circulating pump 24 through the heating medium replenishment pipeline 26. The heating medium storage tank 25 replenishes the heating medium into the heating medium circulation pipeline 22 through the heating medium replenishment pipeline 26 , and the replenished heating medium is circulated in the heating medium circulation pipeline 22 together with the heating medium flowing out of the circulation pump 24 as the heating medium.

[0023] In order to prevent the heating medium replenished in the pipeline from flowing back, a check valve is provided on the heating medium replenishment pipeline 26 .

[0024] In order to ensure the pressure balance of the heating assembly, the top of the heating medium storage tank 25 is also connected to the heating medium inlet of the heating medium circulation pipeline 22 through the exhaust pipeline 27. Further, an explosion-proof port is provided on one side of the top of the heating medium storage tank 25.

[0025] In order to facilitate the control of the pressure stability in the cylinder 1, a fan 3 connected to the cylinder 1 and a pressure sensor arranged on the cylinder 1 are also included.

[0026] In order to ensure the transmission of the carbon black particles in the accommodating space, it also includes a rotating shaft sleeved in the cylinder 1, rotating blades sleeved outside the rotating shaft, and a transmission member connected to one end of the rotating shaft.

[0027] Regarding the above carbon black granulation drying equipment, the outermost layer of the cylinder 1 is coated with a 150mm thick outer cylinder insulation layer, which is used to prevent the heat loss of the dryer heating coil 21. At the same time, the insulation is to keep the internal temperature of the dryer cylinder 1 stable, improve the drying efficiency and save energy. The inner layer of the outer cylinder insulation layer is the dryer heating coil 21. The heating coil 21 is made of ￠89 seamless steel pipe and is wound on the outer wall of the dryer cylinder 1. The heating principle of the heating coil 21 to the dryer is to transfer heat to the dryer through the external heating coil 21, so that the granulated carbon black inside the dryer is heated and heated, thereby achieving the purpose of drying. A temperature remote sensor is also provided in the dryer cylinder 1, which is interlocked with the heating medium heating furnace 23 to control the temperature of the material in the dryer cylinder 1 to prevent or affect the quality of the product due to too low or too high temperature. A dryer pressure remote sensor is also provided in the dryer cylinder 1, which is interlocked with the fan 3 at the water vapor outlet to control the pressure in the dryer cylinder 1.

[0028] The medium inlet of the heating coil 21 is arranged at the upper left part of the dryer cylinder 1, and is connected to the glass compensator at the lower heating medium outlet. The outlet of the heating medium circulation pipeline 22 is arranged at the lower right part of the dryer cylinder 1, and is connected to the control valve of the lower heating medium circulation pipeline 22. The high-temperature circulation pump 24 of the heating medium of the drying furnace is a device that plays a circulation role in the system. Its main function is to transport the heating medium so that it flows between the heating medium heating furnace 23 and the heating equipment dryer to ensure the stable operation of the entire heating system. The high-temperature circulation pump 24 of the heating medium adopts a bottom-in-top-out operation mode, that is, the outlet of the pump is connected to the heating medium outlet control valve, and a heating medium outlet local pressure gauge is arranged on the delivery pipeline. The heating medium heating furnace 23 directly inserts the heating appliance into the organic medium for heating, and performs liquid phase circulation through the high-temperature circulation pump 24, and transports the heated organic medium to the heating coil 21 for heating in the dryer, and then returns to the heating medium heating furnace 23 from the outlet of the heating coil 21 for heating, forming a complete circulation heating system.

[0029] A flow control valve is provided on the upper part of the heating medium heating furnace 23, which is connected to the glass compensator at the outlet of the heating medium. The heating medium storage tank 25 is an important part of the heating system. Its function is to store the organic heating oil in the heating system and act as a heat transfer medium in the system. The heating medium storage tank 25 can not only transfer heat, but also balance the system pressure to improve the safety and reliability of the system. A feed port is vertically provided in the middle of the upper part of the tank body of the heating medium storage tank 25, and an exhaust port is provided on the left side of the tank body, which is connected to the exhaust pipeline 27. A control valve is provided on the exhaust pipeline 27, and its outlet is connected to the heating medium outlet pipeline. An explosion-proof port is provided on the right side of the top of the tank body of the heating medium storage tank 25, which is used to discharge when the tank body pressure is overpressured. A liquid level gauge is provided on the right head of the storage tank to control the liquid level in the tank body. The lower part of the tank body of the heating medium storage tank 25 is also provided with a heating medium replenishing pipeline regulating valve and a check valve for controlling the heating medium replenished in the pipeline to prevent backflow. The check valve outlet is connected to the heating medium replenishing pipeline 26 to replenish the heating organic medium to the heating system.

[0030] In addition, the rear bearing seat is arranged at the left end of the dryer, the front bearing seat is arranged on the right side of the dryer cylinder 1, and the dryer cylinder 1 is provided with spiral blades, and the dryer spiral blades are arranged on a spiral shaft. The spiral shaft is connected to the dryer driving device to push the spiral blades to move the incoming carbon black particles from left to right to the material outlet of the dryer.

[0031] Furthermore, the feed port of the cylinder 1 is connected to the discharge port of the granulator 4, and the feed port of the granulator 4 is connected to the discharge port of the buffer silo 5. The crude carbon black after thermal cracking is ground by the grinder and then transported to the powder buffer silo 5. The feed port of the powder buffer silo 5 is vertically arranged in the middle of the silo top. An upper level meter is arranged on the upper right side of the powder buffer silo 5, which is interlocked with the feed conveying device to control the upper material level in the powder buffer silo 5. A lower material level meter is arranged on the lower left side of the powder buffer silo 5, which is interlocked with the granulator 4 to control the lower material level in the powder buffer silo 5. A knife gate valve is arranged at the lower part of the discharge port of the powder buffer silo 5, which is used to control the material in the silo when the discharge valve needs maintenance. A sealed discharge valve is arranged at the lower part of the knife gate valve. The feed port of the granulator 4 is vertically arranged on the upper left side of the body, connected to the discharge port of the sealed discharge valve, and supplies powder to the granulator 4. The driving device of the granulator 4 is arranged on the left frame, and the granulation water inlet pipe of the granulator 4 is arranged on the upper part of the left cylinder 1 to supply the required amount of water for powder granulation. The discharge port of the granulator 4 is arranged on the lower right part and connected with the air shut-off valve of the discharge port of the granulator 4. The water-containing carbon black particles discharged from the air shut-off valve of the discharge port of the granulator 4 enter the feed port of the dryer, which is vertically arranged on the upper left part of the dryer cylinder 1.

[0032] In addition, the discharge port of the cylinder 1 is connected to the bucket elevator 6, and the bucket elevator 6 is connected to the finished material collection bin 7. The material outlet of the dryer is arranged at the lower part of the cylinder 1 on the right side thereof, and is connected to the discharge valve of the material outlet of the dryer. The feed port of the bucket elevator 6 is connected to the discharge valve of the material outlet of the dryer, and the drop port of the bucket elevator 6 is connected to the feed port of the finished material collection bin 7. The discharge port of the finished material collection bin 7 is provided with a discharge valve, and the material discharged by the discharge valve directly enters the ton bag packaging storage.

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

[0034] The granulator 4 produces granulation when the carbon black particles enter the containing space surrounded by the cylinder 1 through the feed port, and transfer heat with the heating coil 21 to achieve indirect heating. During this process, the heating medium in the heating coil 21 circulates through the heating medium circulation pipeline 22, and at the same time, the heating medium is replenished from the heating medium storage tank 25 to the heating medium circulation pipeline 22 through the heating medium replenishment pipeline 26.

[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 carbon black granulation and drying equipment, characterized in that: include A cylinder, wherein the cylinder forms a space for accommodating the carbon black particles after granulation; A heating component, the heating component is used to provide heat to the carbon black particles in the containing space, comprising: A heating coil, wherein the heating coil is sleeved outside the cylinder; A heating medium circulation pipeline, the heating medium circulation pipeline is connected in series with the heating coil, and a heating furnace and a circulation pump are provided on the heating medium circulation pipeline; A heating medium storage tank, the bottom of which is connected to the heating medium circulation pipeline through a heating medium replenishing pipeline, and the heating medium is replenished into the heating medium circulation pipeline.

2. The carbon black granulation and drying equipment according to claim 1, characterized in that: The heating furnace and the circulation pump are arranged in sequence along the circulation direction of the heating medium, and the outlet of the heating medium storage tank is connected to the outlet of the circulation pump through the heating medium replenishing pipeline.

3. The carbon black granulation and drying equipment according to claim 2, characterized in that: A check valve is arranged on the heating medium replenishing pipeline.

4. The carbon black granulation and drying equipment according to claim 2, characterized in that: The top of the heating medium storage tank is also connected to the heating medium inlet of the heating medium circulation pipeline through an exhaust pipeline.

5. The carbon black granulation and drying equipment according to claim 4, characterized in that: An explosion-proof opening is provided on one side of the top of the heating medium storage tank.

6. The carbon black granulation and drying equipment according to claim 1, characterized in that: It also includes a fan connected to the cylinder and a pressure sensor arranged on the cylinder.

7. The carbon black granulation and drying equipment according to claim 1, characterized in that: It also includes a rotating shaft sleeved in the cylinder, a rotating blade sleeved outside the rotating shaft, and a transmission member connected to one end of the rotating shaft.

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

9. The carbon black granulation and drying equipment according to claim 8, characterized in that: The feed inlet of the granulator is connected to the discharge outlet of the buffer bin.

10. The carbon black granulation and drying equipment according to claim 1, characterized in that: The discharge port of the cylinder is connected to a bucket elevator, and the bucket elevator is connected to a finished material collection bin.

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