Pyrolytic carbon black granulation equipment

Abstract

The utility model provides pyrolytic carbon black granulation equipment, which belongs to the technical field of pyrolytic carbon black and comprises a granulator, a drying device, a heating device and a granulation water adding device, a granulating water spraying piece is arranged on the granulating machine; the drying device is used for drying carbon black particles obtained by granulation of the granulator; the heating device comprises a hot-blast stove and a hot-blast pipeline connected with the hot-blast stove and the drying device; the granulation water adding device comprises a granulation water conveying pipeline, one end of the granulation water conveying pipeline is connected with the granulation water spraying piece, the granulation water conveying pipeline comprises a granulation water heating conveying pipeline arranged in the hot air pipeline, and the granulation water heating conveying pipeline is of a coil pipe type structure. The utility model solves the technical problem that the particle size is unqualified in the granulation process of the existing granulation equipment, and has the characteristics of uniform carbon black granulation particle size and high granulation quality.

Description

Technical Field

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

[0002] With the acceleration of industrialization, the number of automobiles manufactured is increasing, and the frequency of replacing motor vehicles is also increasing. my country is a major automobile producer. As one of the indispensable parts of automobiles, the tire industry has also developed along with the development of the automobile industry. At the same time, the consumption and wear of automobile tires also generate a lot of garbage - waste tires. The definition of so-called waste tires includes not only old tires that have lost their use value after being replaced from motor vehicles, but also discarded tires that do not meet the standards produced in the factory from the beginning.

[0003] Pyrolysis of waste tires refers to an irreversible thermochemical reaction in which organic matter in waste tires is cracked by high temperature in an oxygen-free or oxygen-deficient atmosphere, volatile products are released and solid coke is formed. 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. Among them, crude carbon black can partially replace commercial carbon black after deep processing, modification and activation. The content of pyrolysis carbon black as a pyrolysis solid phase product is as high as nearly 40%, but the pyrolysis carbon black without granulation also has the following defects: first, it has low surface activity, is not conducive to transportation and feeding, is easy to fly during use, pollutes the environment, and is easy to cause quality loss, which seriously weakens the significance of large-scale preparation of pyrolysis carbon black and the value of industrial utilization; second, compared with granulated carbon black, its price is only about 50% of granulated carbon black, and the economic benefit is not high, which leads to production enterprises selling the crude carbon black after pyrolysis as fuel, affecting the overall development of the pyrolysis industry.

[0004] Granulating the pyrolysis carbon black can solve the above problems. However, the existing granulation equipment still has the problem of unqualified particle size during the granulation process. Utility Model Content

[0005] 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.

[0006] The utility model provides a pyrolytic carbon black granulation device, which solves the technical problem that the existing granulation device still has unqualified particle size in the granulation process, and has the characteristics of uniform carbon black granulation particle size and high granulation quality.

[0007] The utility model provides a pyrolytic carbon black granulation device, comprising a granulator, a drying device, a heating device, and a granulation water adding device; the granulator is provided with a granulation water spraying member; the drying device is used for drying the carbon black particles granulated by the granulator; the heating device comprises a hot air furnace, and a hot air duct connecting the hot air furnace and the drying device; the granulation water adding device comprises a granulation water conveying pipeline, one end of the granulation water conveying pipeline is connected to the granulation water spraying member, the granulation water conveying pipeline comprises a granulation water heating conveying pipeline arranged in the hot air duct, and the granulation water heating conveying pipeline is a coil structure.

[0008] In some of the embodiments, the granulation water delivery pipeline further includes a granulation water temperature regulating pipeline connected in parallel with the granulation water heating delivery pipeline, and a control valve is provided on the granulation water temperature regulating pipeline.

[0009] In some embodiments, the granulation water spraying member comprises two groups of nozzles which are 300-500 mm apart.

[0010] In some embodiments, the granulation water adding device further comprises a granulation water tank and a granulation water additive tank connected to the granulation water tank.

[0011] In some embodiments, a stirrer is further provided in the granulation water additive tank.

[0012] In some of the embodiments, a temperature gauge and a pressure gauge are provided on the granulation water delivery pipeline connecting the granulation water temperature regulating pipeline and the outlet side of the granulation water heating delivery pipeline.

[0013] In some of the embodiments, a temperature gauge and a pressure gauge are provided on the hot air duct.

[0014] In some of the embodiments, the drying device includes a discharge port and a flue gas outlet.

[0015] In some of the embodiments, a dust collector connected to the flue gas outlet of the drying device is also included.

[0016] In some embodiments, the heating device further includes a burner.

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

[0018] The utility model provides a pyrolytic carbon black granulation equipment. By arranging a heating device, the heating device cooperates with a drying device to realize the drying of carbon black particles after granulation. At the same time, the hot air in the hot air duct of the heating device can also be used to heat granulation water, and the granulation water temperature is controlled at 60-80°C, thereby overcoming the problem of unqualified granulation particle size caused by the use of ambient temperature water in the traditional granulation process, and having the characteristics of uniform carbon black granulation particle size and high granulation quality. 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 pyrolytic carbon black granulation device provided in an embodiment of the utility model;

[0021] In the above figures: 1. granulator; 2. drying device; 21. discharge port; 22. flue gas outlet; 31. hot air furnace; 32. burner; 41. granulation water delivery pipeline; 42. granulation water heating delivery pipeline; 43. granulation water temperature regulating pipeline; 44. granulation water tank; 45. granulation water additive tank; 5. dust collector. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model embodiment provides a pyrolytic carbon black granulation device, Figure 1 Schematic diagram of the structure of the pyrolytic carbon black granulation equipment according to the embodiment of the utility model. Figure 1As shown, the device at least includes a granulator 1, a drying device 2, a heating device, and a granulation water adding device; the granulator 1 is provided with a granulation water spraying member; the drying device 2 is used to dry the carbon black particles obtained by granulation by the granulator 1; the heating device includes a hot air furnace 31, and a hot air duct connecting the hot air furnace 31 and the drying device 2; the granulation water adding device includes a granulation water conveying pipeline 41, one end of the granulation water conveying pipeline 41 is connected to the granulation water spraying member, and the granulation water conveying pipeline 41 includes a granulation water heating conveying pipeline 42 arranged in the hot air duct, and the granulation water heating conveying pipeline 42 is a coil structure. The pyrolytic carbon black granulation equipment is provided with a heating device, which cooperates with the drying device 2 to achieve the drying of the carbon black particles after granulation. At the same time, the hot air in the hot air duct in the heating device can also be used to heat the granulation water, and the granulation water temperature is controlled at 60-80°C, which overcomes the problem of unqualified granulation particle size caused by the use of ambient temperature water in the traditional granulation process, and has the characteristics of uniform carbon black granulation particle size and high granulation quality. In order to further ensure the temperature regulation effect of the granulation water, the granulation water delivery pipeline 41 also includes a granulation water temperature regulation pipeline 43 connected in parallel with the granulation water heating delivery pipeline 42, and the granulation water temperature regulation pipeline 43 is provided with a control valve. Further, the granulation water spraying part includes two groups of nozzles 300-500mm apart.

[0024] After grinding, the pyrolytic carbon black is conveyed to the buffer bin of the granulator 1 by negative pressure. A feed port is vertically arranged on the upper left side of the granulator 1. The drive of the granulator 1 is arranged on the left base to drive the stirring gear in the cylinder of the granulator 1 to operate. Two groups of high-pressure nozzles are vertically installed on the upper left side of the cylinder of the granulator, namely, granulation water nozzle 1# and granulation water nozzle 2#. The two groups of nozzles are about 400mm apart, providing the powder in the granulator 1 with the required amount of water for granulation. The granulation water nozzle 1# is connected to the granulation water nozzle 2# flow control valve, and the 1# flow control valve is used to control the water flow of the high-pressure nozzle. The granulation water nozzle 2# is connected to the 2# flow control valve, and the 2# flow control valve is used to control the water flow of the high-pressure nozzle. The discharge port of the granulator 1 is arranged on the lower right side of its cylinder and is connected to the feed port of the granulation carbon black drying device 2.

[0025] In some embodiments, the granulation water adding device also includes a granulation water tank 44 and a granulation water additive tank 45 connected to the granulation water tank 44; the granulation water additive tank 45 is also provided with an agitator. The feed port of the granulation water additive tank 45 is arranged on the left side of the upper head of the tank body, and the granulation water additive tank 45 has a built-in agitator for dispersing the input additives. The discharge port of the granulation water additive tank 45 is arranged at the lower part of the tank body, and the control valve arranged at the lower part is used to provide the granulation water tank 44 with the additives required for granulation. The water inlet pipe of the granulation water tank 44 is vertically arranged at the upper left part of the tank body and connected to the water inlet of the granulation water tank 44. The left head of the granulation water tank 44 is provided with a liquid level gauge for controlling the water level in the tank body. A pressure gauge is arranged at the upper part of the granulation water tank 44, and the additive feed port of the granulation water tank 44 is vertically arranged at the upper part of the right tank body, and the water outlet of the granulation water tank 44 is arranged at the lower part of the right head and connected to the granulation water output pipe. A control valve is provided on the granulation water output pipeline, and its outlet is connected to the granulation water output Y-shaped filter valve. The granulation water configured in the granulation water tank 44 is transported to the granulator 1 for use by a high-pressure centrifugal pump, and the water inlet of the high-pressure centrifugal pump is on the left side of the pump body, and is connected to the granulation water output Y-shaped filter valve. The water outlet of the high-pressure centrifugal pump is on the upper part of the pump body, and is connected to the granulation water supply pipeline. A pressure gauge is provided on the upper part of the granulation water supply pipeline for detecting the output pressure of the high-pressure centrifugal pump, and a check valve is also installed on the granulation water supply pipeline to prevent the granulation water from overflowing during shutdown. In the middle part of the granulation water supply pipeline, a granulation water heating and delivery pipeline 42 and a granulation water water temperature regulating pipeline 43 are also provided, and a temperature control valve is provided on the granulation water heating and delivery pipeline 42 and the granulation water water temperature regulating pipeline 43.

[0026] In order to facilitate temperature detection and adjust the granulation water temperature according to the real-time temperature, a temperature gauge and a pressure gauge are provided on the granulation water delivery pipeline 41 connecting the granulation water temperature regulating pipeline 43 and the granulation water heating delivery pipeline 42 on the water outlet side; a temperature gauge and a pressure gauge are provided on the hot air pipeline.

[0027] In some embodiments, the drying device 2 includes a discharge port 21 and a flue gas outlet 22; and also includes a dust collector 5 connected to the flue gas outlet 22 of the drying device 2. The feed port of the granulated carbon black drying device is arranged at the upper part of the left kiln head, and the flue gas outlet 22 of the granulated carbon black drying device 2 is arranged at the upper part of the right kiln head, and is connected to the flue gas dust collector 5 of the granulated carbon black drying device. The granulated carbon black drying device 2 is an external rotary drying device, and the material fed moves from left to right. The discharge port 21 of the granulated carbon black drying device 2 is arranged at the lower part of the right kiln head, and the granulated carbon black after drying is packaged by a packaging machine and stored.

[0028] Furthermore, the heating device also includes a burner 32. The burner 32 is arranged at the upper left side of the shell of the hot blast furnace 31, and is used to provide heat to the hot blast furnace 31. The high-temperature flue gas outlet 22 of the hot blast furnace 31 is arranged in the middle of the right side of the shell of the hot blast furnace 31, and is connected to the high-temperature flue gas pipeline. The heat exchange coil is designed with 3 rows and 8 columns, and the vertical pipes are connected with 180-degree elbows. The whole is installed in the high-temperature flue gas pipeline of the hot blast furnace 31, absorbing the high-temperature flue gas discharged by the hot blast furnace 31, and is used to heat the granulation water. Flanges are arranged at the left and right ends of the high-temperature flue gas pipeline of the hot blast furnace 31, which are used to connect with the high-temperature flue gas outlet 22 flange of the hot blast furnace 31 and the high-temperature flue gas inlet flange of the granulation carbon black dryer. The water inlet of the heat exchanger is vertically arranged at the upper left side of the high-temperature flue gas pipeline of the hot blast furnace 31, and is connected to the water outlet of the granulation water supply pipeline. The water outlet of the heat exchanger is vertically arranged on the upper right side of the high-temperature flue gas pipeline of the hot blast furnace 31, and is connected to the water inlet of the granulation water supply pipeline. A high-temperature flue gas pipeline thermometer and a high-temperature flue gas pipeline pressure gauge are vertically arranged in the middle of the high-temperature flue gas pipeline, which are used to detect the temperature and pressure of the output flue gas. The water supply pipeline of the granulator 1 is provided with a control valve, and the water supply pipeline of the granulator 1 is also provided with a water supply docking flange for adjusting the granulation water temperature, which is connected to the water supply pipeline for adjusting the granulation water temperature. The water supply pipeline of the granulator 1 is provided with a thermometer and a pressure gauge for detecting the temperature of the granulation water supplied to the water supply pipeline of the granulator 1. The water supply pipeline of the granulator 1 is provided with an electromagnetic flow regulating valve, which is used to automatically adjust the flow rate of the supplied granulation water according to the feed amount of the granulator 1.

[0029] It should be noted that the development of a flue gas heating device for pyrolysis carbon black granulation water heat exchanger is the industry's first choice, both in terms of cracking enterprise production efficiency and investment return. Moreover, granular carbon black is easier to store, handle and transport than powdered carbon black. Because it has less dust, it is cleaner and easier to handle, and less management problems occur. However, the problem is that if the process route design of granulation carbon black is unreasonable, it is difficult to produce products with qualified particle size. For example, the temperature and injection intensity of granulation water will affect the product quality during the granulation process. The traditional granulation process uses ambient temperature water. The utility model can solve the problem of unqualified particle size during the granulation process by adding a set of heat exchangers and heating it to about 60-80°C using the flue gas of the smoke furnace. The above equipment is safe and environmentally friendly. The ground powdered carbon black will not cause flying during transportation and use after granulation, which is more environmentally friendly; the granulation water is heated by flue gas, with small investment, simple structure and high operating efficiency; the degree of automation is high, and the water supply system of granulation water adopts automatic control, and the amount of water is sprayed according to the amount of feed, and the labor intensity is low.

[0030] The working process of the above pyrolytic carbon black granulation equipment is:

[0031] The ground pyrolytic carbon black enters the granulator 1 for granulation. In this process, granulation water containing a granulating agent within a certain temperature range is added through a granulation water adding device. The granulation water is provided with heat through a heating device. At the same time, the heating device also provides energy for a drying device 2 for drying the carbon black particles obtained by granulation.

[0032] 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.

[0033] 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 pyrolytic carbon black granulation device, characterized in that: include A granulator, wherein the granulator is provided with a granulation water spraying member; A drying device, the drying device is used to dry the carbon black particles granulated by the granulator; A heating device, the heating device comprising a hot air stove and a hot air duct connecting the hot air stove and the drying device; A granulation water adding device, the granulation water adding device includes a granulation water delivery pipeline, one end of the granulation water delivery pipeline is connected to the granulation water spraying member, the granulation water delivery pipeline includes a granulation water heating delivery pipeline arranged in the hot air duct, and the granulation water heating delivery pipeline is a coil structure.

2. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The granulation water delivery pipeline further comprises a granulation water temperature regulating pipeline connected in parallel with the granulation water heating delivery pipeline, and a control valve is arranged on the granulation water temperature regulating pipeline.

3. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The granulation water spraying part comprises two groups of nozzles which are 300-500 mm apart.

4. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The granulation water adding device further comprises a granulation water tank and a granulation water additive tank connected to the granulation water tank.

5. The pyrolytic carbon black granulation equipment according to claim 4, characterized in that: The granulation water additive tank is also provided with a stirrer.

6. The pyrolytic carbon black granulation equipment according to claim 2, characterized in that: A temperature gauge and a pressure gauge are provided on the granulation water delivery pipeline connecting the granulation water temperature regulating pipeline and the water outlet side of the granulation water heating delivery pipeline.

7. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The hot air duct is provided with a temperature gauge and a pressure gauge.

8. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The drying device comprises a discharge port and a flue gas outlet.

9. The pyrolytic carbon black granulation equipment according to claim 8, characterized in that: It also includes a dust collector connected to the flue gas outlet of the drying device.

10. The pyrolytic carbon black granulation equipment according to claim 1, characterized in that: The heating device also includes a burner.

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