A waste tire pyrolysis wet carbon black granulation equipment

Abstract

The utility model proposes a waste tire pyrolysis wet carbon black granulation equipment, which belongs to the field of wet granulation technology. The granulator further includes a barrel, a rotating shaft, agitating teeth, and a water spray assembly; the rotating shaft is sleeved in the barrel; a plurality of agitating teeth are evenly distributed on the outer surface of the rotating shaft in a spiral shape and are fixedly connected to the rotating shaft, and the straight line where the agitating teeth are located is perpendicular to the central axis of the rotating shaft; the water spray assembly includes a plurality of nozzles, and the plurality of nozzles pass through the side of the barrel in a direction perpendicular to the central axis of the barrel and are sealed to the barrel; the water outlet of the nozzle is located in the barrel, and the water outlet direction of the nozzle is parallel to the agitating teeth but does not overlap. The utility model solves the technical problem that the existing equipment for wet granulation of pyrolytic carbon black still has uneven granulation resulting in unstable product quality, and has the characteristics of uniform granulation, stable product quality, environmental protection, and high production efficiency.

Description

Technical Field

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

[0002] The treatment methods of waste tires include prototype modification, production of recycled rubber and rubber powder, incineration and pyrolysis, among which the 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 transformed 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] Pyrolytic carbon black is a product produced by pyrolysis technology. It is called pyrolytic carbon black because it is different from the traditional carbon black production method. The average particle size of pyrolytic carbon black is 40-50nm, and the aggregate is similar to GPF carbon black. Since the ash content is 14±2%, and it is mainly composed of silica, cobalt salts and zinc, it is relatively unique in chemical and physical properties, with a high degree of crosslinking and diffusivity. Carbon black is an important fine chemical raw material and is widely used in industrial fields such as rubber, plastics, inks, and paints. As an efficient and environmentally friendly carbon black granulation process, pyrolytic carbon black wet granulation technology has attracted much attention in recent years.

[0004] The pyrolytic carbon black wet granulation technology is to form a strong magnetic pole force between carbon black particles by physical or chemical treatment of carbon black, so as to achieve carbon black particle aggregation and obtain larger particle size. This technology improves the properties of carbon black particles, such as particle morphology, dispersibility, fluidity, bulk density, electrical resistance, specific surface area and whitening properties.

[0005] However, the existing equipment for wet granulation of pyrolytic carbon black still has the problem of uneven granulation resulting in unstable product quality. Utility Model Content

[0006] 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.

[0007] The utility model provides a waste tire pyrolysis wet-process carbon black granulation equipment, which solves the technical problem that the existing equipment for pyrolysis carbon black wet-process granulation still has uneven granulation resulting in unstable product quality, and has the characteristics of uniform granulation, stable product quality, environmental protection and high production efficiency.

[0008] The utility model discloses a waste tire pyrolysis wet carbon black granulation device, comprising a granulator, wherein the granulator further comprises a barrel, a rotating shaft, a stirring tooth, and a water spray assembly; the rotating shaft is sleeved in the barrel; a plurality of the stirring teeth are evenly distributed on the outer surface of the rotating shaft in a spiral shape, and are fixedly connected to the rotating shaft, and the straight line where the stirring teeth are located is perpendicular to the central axis of the rotating shaft; the water spray assembly comprises a plurality of nozzles, and the plurality of nozzles pass through the side surface of the barrel in a direction perpendicular to the central axis of the barrel, and are sealed and connected to the barrel; the water outlet of the nozzle is located in the barrel, and the water outlet direction of the nozzle is parallel to the stirring tooth but does not overlap.

[0009] In some of the embodiments, the water spray assembly further includes a water storage tank, and a granulation water delivery pipeline connecting the water storage tank and the plurality of the nozzles, and the granulation water delivery pipeline is provided with a delivery pump and a total flow control valve.

[0010] In some of the embodiments, several of the nozzles include a main nozzle and a spare nozzle, and the spare nozzle is connected to the granulation water delivery pipeline through a spare granulation water delivery pipeline; a first control sub-valve is provided at the water inlet of each main nozzle; and a second control sub-valve is provided on the spare granulation water delivery pipeline.

[0011] In some embodiments, the stirring tooth is fixedly connected to the rotating shaft via a stirring tooth mounting seat, and the stirring tooth is threadedly connected to the stirring tooth mounting seat.

[0012] In some embodiments, the granulator further includes a fixing ring which is spirally sleeved outside the rotating shaft and is used to fix the stirring teeth.

[0013] In some embodiments, the granulator further includes a driving motor, a driving pulley is provided on the driving motor, a driven pulley is provided at one end of the rotating shaft, and the driving pulley and the driven pulley are driven by a V-belt transmission to drive the rotating shaft to rotate.

[0014] In some of the embodiments, the cylinder outer shell is provided with a heating jacket.

[0015] Some of the embodiments further include a buffer silo, a dust removal bag is provided on the top of the buffer silo, and the dust removal bag is connected to the pulse valve.

[0016] In some of the embodiments, the buffer silo is also connected to a fan.

[0017] In some of the embodiments, a feeding screw machine is further included to connect the buffer silo and the granulator.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model provides a waste tire pyrolysis wet-process carbon black granulation device, which ensures uniform stirring of carbon black during granulation by setting stirring teeth and limiting the setting mode of the stirring teeth and the setting mode of the nozzle, and ensures uniform and sufficient mixing of granulation water and carbon black, thereby ensuring the uniformity of granulation and further ensuring the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 A schematic diagram of the structure of a granulator provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of a waste tire pyrolysis wet carbon black granulation device provided in an embodiment of the utility model;

[0023] In the above figures: 1. granulator; 11. cylinder; 12. rotating shaft; 13. stirring teeth; 141. main nozzle; 142. spare nozzle; 143. water storage tank; 144. granulation water delivery pipeline; 145. total flow control valve; 146. first control sub-valve; 147. second control sub-valve; 148. granulation water spare delivery pipeline; 15. fixing ring; 16. driving motor; 2. buffer silo; 3. fan; 4. feeding screw machine; 5. heating jacket. 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 provides a waste tire pyrolysis wet carbon black granulation device, comprising a granulator 1, Figure 1 Schematic diagram of the structure of a granulator 1 according to an embodiment of the present invention. Figure 1As shown, the granulator 1 further includes a barrel 11, a rotating shaft 12, a stirring tooth 13, and a water spray assembly; the rotating shaft 12 is sleeved in the barrel 11; a plurality of stirring teeth 13 are evenly distributed on the outer surface of the rotating shaft 12 in a spiral shape, and are fixedly connected to the rotating shaft 12, and the straight line where the stirring teeth 13 are located is perpendicular to the central axis of the rotating shaft 12; the water spray assembly includes a plurality of nozzles, and the plurality of nozzles pass through the side of the barrel 11 in a direction perpendicular to the central axis of the barrel 11 and are sealed and connected to the barrel 11; the water outlet of the nozzle is located in the barrel 11, and the water outlet direction of the nozzle is parallel to but not overlapped with the stirring tooth 13.

[0026] Compared with the traditional mechanical granulation technology, the pyrolytic carbon black wet granulation technology has the following significant characteristics: First, the pyrolytic carbon black wet granulation technology has the advantages of high efficiency and low energy consumption. This technology does not require a large amount of additional mechanical power. By adjusting the process parameters of wet granulation, carbon black products of different particle sizes can be achieved. Therefore, compared with the traditional mechanical granulation technology, it saves a lot of energy and operating costs and improves production efficiency. Secondly, the pyrolytic carbon black wet granulation technology is environmentally friendly. In the traditional mechanical granulation process, due to the existence of granulation operations such as grinding and screening, dust and exhaust gas pollution problems are easily generated. The pyrolytic carbon black wet granulation technology can effectively reduce the emission of dust and exhaust gas through wet heat treatment and meet environmental protection requirements. This technology not only improves the performance of carbon black particles, but also contributes to environmental protection. Thirdly, the pyrolytic carbon black wet granulation technology also has the advantage of product diversification. By modifying the surface of carbon black particles and adjusting the process parameters, carbon black products of different particle sizes and properties can be obtained. This provides more options for the application of carbon black in different industries. It can be seen that the pyrolytic carbon black wet granulation technology can also improve production efficiency, reduce production costs, and bring better economic benefits to the enterprise.

[0027] The above embodiment improves the granulator 1 on the basis of the above-mentioned advantages of the pyrolytic carbon black wet granulation technology. Specifically, by setting the stirring teeth 13, the setting mode of the stirring teeth 13 is limited, and the setting mode of the nozzle is limited, which not only ensures the uniform stirring of the carbon black during the granulation process, but also ensures the uniform and sufficient mixing of the granulation water and the carbon black, ensures the uniformity of the granulation, and further ensures the stability of the product quality. It should be noted that by limiting the straight line where the stirring teeth 13 are located to be perpendicular to the central axis of the rotating shaft 12, not only the uniform and stable stirring of the carbon black particles by the stirring teeth 13 is ensured, but also the stability of the connection between the stirring teeth 13 and the rotating shaft 12 is ensured. By limiting the water outlet direction of the nozzle to be parallel to the stirring teeth 13 but not overlapping, not only the sufficient contact between the granulation water and the carbon black particles is ensured, but also the problem of damage to the stirring teeth 13 caused by repeated flushing of the granulation water on the stirring teeth 13, thereby affecting the granulation, is avoided.

[0028] In order to ensure the stable delivery of granulation water, the water spraying assembly further includes a water storage tank 143 and a granulation water delivery pipeline 144 connecting the water storage tank 143 and a plurality of nozzles. The granulation water delivery pipeline 144 is provided with a delivery pump and a total flow control valve 145.

[0029] In order to avoid the occurrence of problems affecting granulation quality due to nozzle blockage and damage, several nozzles include a main nozzle 141 and a spare nozzle 142. The spare nozzle 142 is connected to the granulation water delivery pipeline 144 through a granulation water spare delivery pipeline 148; a first control sub-valve 146 is provided at the water inlet of each main nozzle 141; and a second control sub-valve 147 is provided on the granulation water spare delivery pipeline 148.

[0030] In order to facilitate replacement of the damaged stirring teeth 13 when the stirring teeth 13 are damaged, the stirring teeth 13 are fixedly connected to the rotating shaft 12 via a stirring tooth 13 mounting seat, and the stirring teeth 13 are threadedly connected to the stirring tooth 13 mounting seat.

[0031] In order to further ensure the stability of the installation of the stirring teeth 13 , the granulator 1 further includes a fixing ring 15 which is spirally sleeved outside the rotating shaft 12 and is used to fix the stirring teeth 13 .

[0032] Furthermore, the granulator 1 further includes a driving motor 16, on which a driving pulley is provided, and a driven pulley is provided at one end of the rotating shaft 12, and the driving pulley and the driven pulley are driven by a V-belt transmission to drive the rotating shaft 12 to rotate.

[0033] In order to maintain a stable granulation temperature that meets the requirements, a heating jacket 5 is provided on the outer shell of the cylinder 11 .

[0034] Regarding the above granulator 1, water is indispensable for granulation of pyrolytic carbon black. A granulation water storage tank 143 is provided on the left side of the wet granulator 1 to store granulation water. A granulation water high-pressure delivery pump is provided at the lower right side of the granulation water storage tank 143, and the water inlet of the granulation water high-pressure delivery pump is connected to the water outlet of the granulation water storage tank 143. The water outlet of the granulation water high-pressure delivery pump is connected to the water inlet of the granulation water delivery pipeline 144, and a granulation water flow total control valve 145 is provided at the lower end of the granulation water delivery pipeline 144 to control the flow rate and injection pressure of the granulation water. Four groups of granulation water main nozzles 141 are vertically arranged on the left cylinder 11 of the wet granulator 1, and the water inlet of the main nozzle 141 is respectively provided with a first control sub-valve 146, which is used to adjust the water volume and facilitate the switching of the standby water inlet when taking over. The granulation water standby delivery pipeline 148 is used for switching between the four groups of standby nozzles 142 when a failure occurs in the main nozzle 141 . A second control sub-valve 147 is provided on the granulation water standby delivery pipeline 148 for switching the four groups of standby nozzles 142 for use.

[0035] The wet granulator 1 is integrally mounted and fixed on a frame base, a wet granulator 1 driving motor 16 is arranged on the left side of the frame base, a driving pulley is arranged on the driving motor 16, a driven pulley is arranged on the left side of the rotating shaft 12 of the wet granulator 1, and the driving pulley and the driven pulley are driven by a driving V-belt. A left bearing box is arranged on the left side of the wet granulator 1, a right bearing box is arranged on the bracket of the right cylinder 11 of the wet granulator 1, and the left and right shaft heads of the rotating shaft 12 of the wet granulator 1 are assembled with the left bearing box and the right bearing box.

[0036] A heating jacket 5 is provided on the outside of the barrel 11 of the wet granulator 1 for adjusting the temperature inside the wet granulator 1. The water supply port of the heating jacket 5 of the wet granulator 1 is vertically arranged at the upper left part of the barrel 11, the water return port of the heating jacket 5 of the wet granulator 1 is vertically arranged at the upper right part of the barrel 11, and the sewage outlet of the heating jacket 5 of the wet granulator 1 is arranged at the middle bottom of the barrel 11.

[0037] The cylinder 11 of the wet granulator 1 is provided with a rotating shaft 12 of the wet granulator 1, and a mounting seat of the stirring teeth 13 of the wet granulator 1 is provided on the rotating shaft 12. A plurality of groups of wet granulation stirring teeth 13 arranged in a spiral line are provided on the mounting seat of the stirring teeth 13, and all the granulation stirring teeth 13 are mounted on the mounting seat of the stirring teeth 13. In order to prevent the granulation stirring teeth 13 from loosening, a fixing ring 15 of the stirring teeth 13 of the wet granulator 1 is also provided on each granulation stirring tooth 13, and the fixing ring 15 of the stirring teeth 13 is connected from the beginning to the end. In addition, an observation hole is provided on the upper part of the cylinder 11 on the right side of the wet granulator 1, so as to observe the working state of the wet granulator 1 at any time. A sampling port of the wet granulator 1 is provided on the lower part of the cylinder 11 on the right side of the granulator 1, so as to conveniently extract the particle size distribution of the particles produced by the wet granulator 1. A discharge port of the wet granulator 1 is arranged at the lower part of the right cylinder 11 of the wet granulator 1, and the discharged wet pyrolytic carbon black particles are sent to the next step for drying.

[0038] like Figure 2As shown, it also includes a buffer silo 2, a dust bag is provided at the top of the buffer silo 2, the dust bag is connected to a pulse valve, and the buffer silo 2 is also connected to a fan 3. It further includes a feeding screw 4 connecting the buffer silo 2 and the granulator 1. Among them, the granulation buffer silo 2 is a container for providing materials to the wet granulator 1, the feed port of the granulation buffer silo 2 is arranged on the upper part of the left box of the dust collector, the dust bag is arranged inside the granulation buffer silo 2 dust collector, and the dust collector pulse valve is arranged on the upper part of the right box of the granulation buffer silo 2, which is used to back-blow the dust adsorbed on the dust bag to maintain the stability of the negative pressure in the silo. The granulation buffer silo 2 is arranged at the lower part of the dust collector, and the upper material level meter is arranged on the right box of the granulation buffer silo 2. The upper material level meter is interlocked with the external conveying equipment to control the upper material level in the buffer silo 2. A lower material level meter is arranged on the lower cone on the left side of the granulation buffer silo 2, and the lower material level meter is interlocked with the air shut-off discharge valve of the granulation buffer silo 2 to control the material discharge level in the buffer silo 2. A negative pressure air outlet is arranged at the lower part of the dust collector on the right side of the granulation buffer silo 2, and is connected to the dust collector fan 3 of the granulation buffer silo 2 to provide the air volume required for negative pressure transportation in the granulation buffer silo 2. A knife gate valve is arranged at the discharge port of the granulation buffer silo 2, and a granulation buffer silo 2 air shut-off discharge valve is arranged at the lower part of the knife gate valve, and the material transported by the air shut-off discharge valve is supplied to the feeding screw machine. The powder inlet of the feeding screw machine 4 is connected to the discharge port of the air shut-off discharge valve, the driving device of the feeding screw machine 4 is arranged on the left side of the spiral cylinder 11, and the spiral blades are arranged in the spiral cylinder 11 of the feeding screw machine 4. The discharge port of the feeding screw machine 4 is arranged at the lower right side of the spiral cylinder 11, and is connected to the feed port of the wet granulator 1.

[0039] The working process of the above waste tire pyrolysis wet carbon black granulation equipment is as follows:

[0040] The carbon black particles enter the housing of the granulator 1, and are stirred and moved forward by the rotating stirring teeth 13. During this process, the granulation water sprayed from the nozzle is evenly mixed with the carbon black particles to ensure the granulation quality of the entire granulation process.

[0041] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they 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 waste tire pyrolysis wet process carbon black granulation equipment, characterized in that: Comprising a granulator, the granulator further comprising: Cylinder; A rotating shaft, wherein the rotating shaft is sleeved in the cylinder; Agitating teeth, a plurality of the agitating teeth are evenly distributed on the outer surface of the rotating shaft in a spiral shape and are fixedly connected to the rotating shaft, and the straight line where the agitating teeth are located is perpendicular to the central axis of the rotating shaft; A water spray assembly, the water spray assembly includes a plurality of spray heads, the plurality of spray heads pass through the side surface of the cylinder in a direction perpendicular to the central axis of the cylinder and are sealed with the cylinder; the water outlet of the spray head is located in the cylinder, and the water outlet direction of the spray head is parallel to but not overlapped with the stirring teeth.

2. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: The water spray assembly further comprises a water storage tank and a granulation water delivery pipeline connecting the water storage tank and a plurality of the spray heads. The granulation water delivery pipeline is provided with a delivery pump and a total flow control valve.

3. The waste tire pyrolysis wet carbon black granulation equipment according to claim 2 is characterized in that: The plurality of nozzles include a main nozzle and a spare nozzle, wherein the spare nozzle is connected to the granulation water delivery pipeline through a spare granulation water delivery pipeline; a first control sub-valve is provided at the water inlet of each main nozzle; and a second control sub-valve is provided on the spare granulation water delivery pipeline.

4. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: The stirring teeth are fixedly connected to the rotating shaft via a stirring teeth mounting seat, and the stirring teeth are threadedly connected to the stirring teeth mounting seat.

5. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: The granulator also includes a fixing ring which is spirally sleeved outside the rotating shaft and is used for fixing the stirring teeth.

6. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: The granulator further comprises a driving motor, a driving pulley is arranged on the driving motor, a driven pulley is arranged at one end of the rotating shaft, and the driving pulley and the driven pulley are driven by a V-belt to drive the rotating shaft to rotate.

7. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: The outer shell of the cylinder is provided with a heating jacket.

8. The waste tire pyrolysis wet carbon black granulation equipment according to claim 1 is characterized in that: It also includes a buffer silo, a dust removal bag is arranged on the top of the buffer silo, and the dust removal bag is connected to the pulse valve.

9. The waste tire pyrolysis wet carbon black granulation equipment according to claim 8, characterized in that: The buffer silo is also connected to a fan.

10. The waste tire pyrolysis wet process carbon black granulation equipment according to claim 8, characterized in that: It also includes a feeding screw connecting the buffer bin and the granulator.

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