CN216236806U - High-temperature plasma continuous purification furnace for waste tire cracking carbon black - Google Patents
High-temperature plasma continuous purification furnace for waste tire cracking carbon black Download PDFInfo
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- CN216236806U CN216236806U CN202122804284.8U CN202122804284U CN216236806U CN 216236806 U CN216236806 U CN 216236806U CN 202122804284 U CN202122804284 U CN 202122804284U CN 216236806 U CN216236806 U CN 216236806U
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Abstract
The utility model relates to a high-temperature plasma continuous purification furnace for waste tire pyrolysis carbon black, which comprises a purification furnace body, a preheating chamber arranged at the upper part in the purification furnace body, a purification chamber arranged at the lower part in the purification furnace body, a plasma generator communicated with the purification chamber, a discharge port arranged at the lower part of the purification chamber and a feed port arranged at the upper part of the preheating chamber, wherein the preheating chamber is communicated with the purification chamber, and the side wall of the preheating chamber is provided with an exhaust port. The method has the advantages of simple process flow and low operation cost, the interior of the purification furnace is designed into a fluidized state, the contact area between the material and the active gas is increased, the heat transfer and mass transfer processes between the ash in the material and the high-activity plasma are enhanced, the separation of the ash in the cracking carbon black can be realized through gas-solid reaction, the characteristics of high temperature, high energy density, controllable atmosphere, rich active components and the like of the plasma are fully utilized, the reaction of the inorganic ash in the cracking carbon black can be quicker and the removal of the inorganic ash can be more thorough, and the high-purity carbon black raw material can be obtained.
Description
Technical Field
The utility model relates to the technical field of carbon black preparation, in particular to a high-temperature plasma continuous purification furnace for waste tire cracking carbon black.
Background
Due to different sources and pyrolysis processes of the waste tires, the pyrolysis carbon black of the waste tires accounts for 30% -37% of pyrolysis products, wherein the ash content of the carbon black is about 15%, and the high-value resource utilization of the pyrolysis carbon black is seriously restricted by the high ash content. According to research, the incineration rate of the waste tires and the pyrolysis carbon black in China is close to 55%, and for improving the quality of the pyrolysis carbon black of the waste tires, influence factors and influence degrees of the influence factors on the quality of the carbon black are required to be clear, and different influence factors have different influence effects on the quality of the pyrolysis carbon black, and influence modes are different.
The ash content in the cracking carbon black mainly comprises ZnO and SiO2、Al2O3And inorganic oxides such as CaO and the like are generally purified by an acid pickling process or an acid pickling and alkali washing combined process, and the acid pickling process and the alkali washing combined process can generate high-concentration acid-base waste liquid in the production and operation processes, so that the occupied area is large, the environment is seriously polluted, the automation degree is low, and the working environment is severe.
With the technological progress and the high-speed development of high-end manufacturing industry, various high-purity powders such as silicon carbide, aluminum nitride, graphite and the like appear, the powders are purified in a high-temperature low-vacuum furnace, heat is required to be conducted into the powder purifying process, gasified impurities can be discharged out, and continuous production is required. The utility model aims at the key link of purification in the deep resource treatment process of the waste tire cracked carbon black, mainly overcomes the defects of the existing cracked carbon black purification process, and solves the problems of incomplete purification, serious environmental pollution and incapability of continuous production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a high-temperature plasma continuous purification furnace for waste tire pyrolysis carbon black, which can enable inorganic ash in the pyrolysis carbon black to react faster and be removed more thoroughly.
The utility model is realized by the following technical scheme:
the utility model provides a continuous purification furnace of junked tire schizolysis carbon black high temperature plasma which characterized in that, includes the purification furnace body, locates the preheating chamber of this internal upper portion of purification furnace, locates the purification chamber of this internal lower part of purification furnace, the plasma generator who is linked together with the purification chamber, sets up in the discharge gate of purification chamber lower part and sets up the feed inlet on preheating chamber upper portion, the preheating chamber is linked together with the purification chamber, the plasma torch air inlet has been seted up to purification chamber lower extreme, the plasma generator links to each other at plasma torch air inlet department with the purification chamber, the gas vent has been seted up to the preheating chamber lateral wall.
According to the above technical solution, preferably, a contraction section is provided between the purification chamber and the preheating chamber.
According to the technical scheme, preferably, a purification internal circulation pipe is installed in the purification chamber, and the upper end of the purification internal circulation pipe faces the preheating chamber.
According to the above technical solution, preferably, a preheating inner circulation pipe is installed in the preheating chamber, and a lower end of the preheating inner circulation pipe is disposed toward the purification chamber.
According to the technical scheme, preferably, the lower end of the preheating inner circulation pipe is arranged close to the contraction section, and the edge of the lower end of the preheating inner circulation pipe is bent outwards to form the expansion flange.
According to the above technical solution, preferably, the inlet of the plasma generator is connected with a supply device, and the supply device is connected with the plasma generator through a gas supply pipeline and a water supply pipeline respectively.
According to the technical scheme, preferably, the discharge hole is communicated with a material cooler through a discharge pipe.
The utility model has the beneficial effects that:
the traditional purification furnace is improved, the interior of the purification furnace is designed into a fluidized state, the contact area between materials and active gas is increased, the heat transfer and mass transfer processes between ash in the materials and high-activity plasmas are enhanced, the separation of the ash in the cracking carbon black can be realized through gas-solid reaction, the characteristics of high temperature, high energy density, controllable atmosphere, rich active components and the like of the plasmas are fully utilized, the reaction of inorganic ash in the cracking carbon black can be faster and more thorough, and a high-purity carbon black raw material is obtained; in addition, the utility model has simple process flow and low operation cost, can realize continuous production, has unlimited construction scale and meets the requirements of various domestic tire cracking and recycling enterprises.
Drawings
Fig. 1 is a front view of the present invention.
FIG. 2 is a sectional view showing a top view of the installation of the purification inner circulation pipe to the purification furnace body.
In the figure: 1. a plasma generator; 1-1, a supply device; 1-2, an air supply pipeline; 1-3, a water supply pipeline; 1-4, high temperature, high activity plasma torch; 2. a purification furnace body; 2-1, a purification chamber; 2-2, purifying an inner circulation pipe; 2-3, a contraction section; 2-4, a preheating chamber; 2-5, preheating an inner circulation pipe; 2-6, expanding the flange; 2-7, supporting the square pipe; 3. a feed inlet; 4. an exhaust port; 5. a material cooler.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in the figure 1-2, the utility model comprises a purification furnace body 2, a preheating chamber 2-4 arranged at the upper part in the purification furnace body 2, a purification chamber 2-1 arranged at the lower part in the purification furnace body 2, a plasma generator 1 communicated with the purification chamber 2-1, a discharge port arranged at the lower part of the purification chamber 2-1 and a feed port 3 arranged at the upper part of the preheating chamber 2-4, wherein the feed port 3 is communicated with a feeding device through a feed pipe, the discharge port is communicated with a material cooler 5 through a discharge pipe, the preheating chamber 2-4 is communicated with the purifying chamber 2-1, the lower end of the purifying chamber 2-1 is provided with a plasma torch air inlet, the plasma generator 1 is connected with the purification chamber 2-1 at the air inlet of the plasma torch, and the side wall of the preheating chamber 2-4 is provided with an exhaust port 4. The traditional purification furnace is improved, the interior of the purification furnace is designed into a fluidized state, the contact area between materials and active gas is increased, the heat transfer and mass transfer processes between ash in the materials and high-activity plasmas are enhanced, the separation of the ash in the cracking carbon black can be realized through gas-solid reaction, the characteristics of high temperature, high energy density, controllable atmosphere, rich active components and the like of the plasmas are fully utilized, the reaction of inorganic ash in the cracking carbon black can be faster and more thorough, and a high-purity carbon black raw material is obtained; in addition, the utility model has simple process flow and low operation cost, can realize continuous production, has unlimited construction scale and meets the requirements of various domestic tire cracking and recycling enterprises.
According to the above embodiment, preferably, a contraction section 2-3 is arranged between the purification chamber 2-1 and the preheating chamber 2-4, wherein the width of the contraction section 2-3 is smaller than the width of the horizontal section of the preheating chamber 2-4 and the purification chamber 2-1, so that the gas flow rate of the high-temperature tail gas discharged from the purification chamber 2-1 is increased in the contraction section 2-3, and the cold material newly added at the feed inlet 3 is ensured to be rapidly mixed and preheated with the tail gas discharged from the purification chamber 2-1.
According to the above embodiment, preferably, the purification chamber 2-1 is internally provided with the purification internal circulation pipe 2-2, in this embodiment, the periphery of the purification internal circulation pipe 2-2 is fixedly connected with the inner wall of the purification furnace body 2 through the support square pipe 2-7, so that the purification internal circulation pipe 2-2 is positioned at the inner center of the purification chamber 2-1, the upper end of the purification internal circulation pipe 2-2 is arranged towards the preheating chamber 2-4, and the lower end of the purification internal circulation pipe 2-2 is arranged towards the gas inlet of the plasma torch. The purification chamber 2-1 realizes the circulation flow of the gas-solid two-phase fluid according to certain distribution by means of the purification internal circulation pipe 2-2, a fluidization area for strengthening mass transfer and heat transfer is formed inside the purification internal circulation pipe 2-2, and a material reflux sedimentation area is arranged outside the purification internal circulation pipe 2-2.
According to the above embodiment, it is preferable that the preheating chamber 2-4 is installed therein with a preheating internal circulation pipe 2-5, and the lower end of the preheating internal circulation pipe 2-5 is disposed toward the purification chamber 2-1. In the embodiment, the purification inner circulation pipe 2-2 and the preheating inner circulation pipe 2-5 are both of tubular structures with two open ends, wherein the periphery of the preheating inner circulation pipe 2-5 is fixedly connected with the inner wall of the purification furnace body 2 through a supporting square pipe 2-7, so that the preheating inner circulation pipe 2-5 is positioned in the center of the preheating chamber 2-4, the preheating chamber 2-4 realizes the circulation flow of a gas-solid two-phase fluid according to certain distribution by means of the preheating inner circulation pipe 2-5, a fluidization area for strengthening heat transfer is formed inside the preheating inner circulation pipe 2-5, and a material reflux settlement area is arranged outside the preheating inner circulation pipe 2-5.
According to the above embodiment, preferably, the lower end of the preheating inner circulation pipe 2-5 is arranged near the contraction section 2-3, and the lower end edge of the preheating inner circulation pipe 2-5 is bent outwards to form the expansion flange 2-6. The arrangement can effectively reduce the opening area between the preheating chamber 2-4 and the contraction section 2-3, and prevent new materials from directly falling into the purification chamber 2-1 without preheating, the new materials are preheated in the preheating chamber 2-4 through the preheating inner circulation pipe 2-5 under the action of air flow in the working process, and when the materials in the preheating chamber 2-4 are accumulated to a certain degree, the materials flow into the purification chamber 2-1 from the space between the expansion flange 2-6 at the lower end of the preheating inner circulation pipe 2-5 and the contraction section 2-3 along with self weight.
According to the above embodiment, preferably, the inlet of the plasma generator 1 is connected with a supply device 1-1, the supply device 1-1 is connected with the plasma generator 1 through a gas supply pipeline 1-2 and a water supply pipeline 1-3, respectively, and a high-temperature and high-activity plasma torch 1-4 formed by the plasma generator 1 extends into the interior of the purification chamber 2-1 through the gas inlet of the plasma torch of the purification chamber 2-1.
The working principle of the utility model is as follows: the purification chamber 2-1 is a reaction area of the material and the high-temperature high-activity plasma gas, the temperature is high, the concentration of plasma active particles is high, impurities in the material and the high-temperature high-activity plasma gas are subjected to rapid purification reaction in the purification chamber 2-1, the impurities are changed into gaseous state and separated from solid materials, the purified high-temperature material is discharged into a closed material cooler 5 through a discharge pipe, a high-purity carbon black raw material is finally obtained, tail gas of the purification chamber 2-1 is discharged into a preheating chamber 2-4 through a contraction section 2-3, and the newly added material is preheated; the preheating chamber 2-4 is a preheating zone of materials, tail gas of the purification chamber 2-1 with higher temperature is discharged into the preheating chamber 2-4, then rapid heat exchange is carried out between the tail gas of the purification chamber 2-1 and the cold materials newly added through the feed inlet 3 in the preheating chamber 2-4, the newly added cold materials are rapidly mixed and preheated in the preheating inner circulating pipe 2-5 through the contraction section 2-3 and the tail gas discharged from the purification chamber 2-1, the preheated high-temperature materials are settled and refluxed outside the preheating inner circulating pipe 2-5 and are discharged into the purification chamber 2-1 through the side wall of the contraction section 2-3, heat loss is effectively reduced, and the flue gas of the preheating chamber 2-4 is discharged outwards through the exhaust port 4.
The traditional purification furnace is improved, the interior of the purification furnace is designed into a fluidized state, the contact area between materials and active gas is increased, the heat transfer and mass transfer processes between ash in the materials and high-activity plasmas are enhanced, the separation of the ash in the cracking carbon black can be realized through gas-solid reaction, the characteristics of high temperature, high energy density, controllable atmosphere, rich active components and the like of the plasmas are fully utilized, the reaction of inorganic ash in the cracking carbon black can be faster and more thorough, and a high-purity carbon black raw material is obtained; in addition, the utility model has simple process flow and low operation cost, can realize continuous production, has unlimited construction scale and meets the requirements of various domestic tire cracking and recycling enterprises.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a continuous purification furnace of junked tire schizolysis carbon black high temperature plasma which characterized in that, includes the purification furnace body, locates the preheating chamber of this internal upper portion of purification furnace, locates the purification chamber of this internal lower part of purification furnace, the plasma generator who is linked together with the purification chamber, sets up in the discharge gate of purification chamber lower part and sets up the feed inlet on preheating chamber upper portion, the preheating chamber is linked together with the purification chamber, the plasma torch air inlet has been seted up to purification chamber lower extreme, the plasma generator links to each other at plasma torch air inlet department with the purification chamber, the gas vent has been seted up to the preheating chamber lateral wall.
2. The high-temperature plasma continuous purification furnace for carbon black cracked from waste tires as claimed in claim 1, wherein a contraction section is provided between the purification chamber and the preheating chamber.
3. The high-temperature plasma continuous purification furnace for carbon black cracked from waste tires as claimed in claim 1, wherein the purification chamber is installed with a purification internal circulation pipe, and the upper end of the purification internal circulation pipe is arranged towards the preheating chamber.
4. The high-temperature plasma continuous purification furnace for carbon black cracked from waste tires as claimed in claim 2, wherein the preheating chamber is internally provided with a preheating internal circulation pipe, and the lower end of the preheating internal circulation pipe is arranged towards the purification chamber.
5. The high-temperature plasma continuous purification furnace for waste tire cracked carbon black as claimed in claim 4, wherein the lower end of the preheating inner circulation pipe is arranged near the contraction section, and the lower edge of the preheating inner circulation pipe is bent outwards to form an expansion flange.
6. The high-temperature plasma continuous purification furnace for waste tire cracking carbon black as claimed in claim 1, wherein the inlet of the plasma generator is connected with a supply device, and the supply device is connected with the plasma generator through an air supply pipeline and a water supply pipeline respectively.
7. The high-temperature plasma continuous purification furnace for waste tire cracking carbon black according to any one of claims 1 to 6, wherein the discharge port is communicated with a material cooler through a discharge pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122804284.8U CN216236806U (en) | 2021-11-16 | 2021-11-16 | High-temperature plasma continuous purification furnace for waste tire cracking carbon black |
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| CN202122804284.8U CN216236806U (en) | 2021-11-16 | 2021-11-16 | High-temperature plasma continuous purification furnace for waste tire cracking carbon black |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114106592A (en) * | 2021-11-05 | 2022-03-01 | 航天环境工程有限公司 | High-temperature plasma purification treatment method for waste tire pyrolysis carbon black |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114106592A (en) * | 2021-11-05 | 2022-03-01 | 航天环境工程有限公司 | High-temperature plasma purification treatment method for waste tire pyrolysis carbon black |
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