CN112111181A - Carbon black preparation device and method based on explosion method - Google Patents
Carbon black preparation device and method based on explosion method Download PDFInfo
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Abstract
The invention discloses a carbon black preparation device based on an explosion method, which comprises a detonation pipe, a collection device, an ignition system, a gas storage system, a curved storage pipe, a control valve and an atomizing nozzle, wherein the detonation pipe is connected with the collection device; wherein the atomizing nozzle, the collecting device and the ignition system are hermetically arranged in the detonation tube, and the curved material storage tube, the control valve and the gas storage system are sequentially connected on the side wall of the detonation tube. The invention adopts a mode of carrying out explosion reaction in the detonation tube, can realize the purpose of instantly preparing the carbon black, has short reaction time, and has safe and high reliability of the device. The invention also provides a carbon black preparation method based on the carbon black preparation device, which can adopt combustible organic liquid containing carbon, hydrogen and oxygen as a preparation raw material, and can generate a large amount of carbon black on the premise of unit raw material compared with the prior art which generally adopts natural gas as the preparation raw material; meanwhile, the preparation method has the advantages of simple process, easy operation, low preparation cost, rapid preparation process and industrialized mass production.
Description
Technical Field
The invention belongs to the technical field of carbon black preparation, and particularly relates to a carbon black preparation device based on an explosion method and a preparation method thereof.
Background
Carbon black is a light, loose and extremely fine black powder whose main component is carbon, and which contains small amounts of hydrogen, oxygen, sulfur, ash, tar and moisture, and is a product obtained by incomplete combustion or thermal decomposition of carbonaceous substances (coal, natural gas, heavy oil, fuel oil, etc.) under conditions of insufficient air. The basic size of the carbon black is between 10nm and 100nm, and the carbon black is the nano material which is developed and applied by people at the earliest. The carbon black can be used as black dye, widely used for manufacturing products such as Chinese ink, printing ink, paint and the like, and also used as a reinforcing agent of rubber.
The production of carbon black is classified into two types, i.e., incomplete combustion of hydrocarbons and thermal cracking of hydrocarbons, depending on the presence or absence of oxygen during the reaction. Among them, the process of incomplete combustion, also called thermal oxidation cracking, is the most important process so far; thermal cracking is carried out in the absence of oxygen, and this process is rarely used. The incomplete combustion method carbon black includes oil furnace carbon black, gas furnace carbon black, lamp fume carbon black, spray method carbon black, channel method carbon black, drum method carbon black and gas mixing method carbon black, and the thermal cracking method carbon black includes thermal cracking method carbon black and acetylene method carbon black.
The main methods for producing carbon black at present include furnace method and channel method, and these two methods have been developed relatively well. Furnace black is produced by incomplete combustion or thermal cracking of natural gas (gaseous hydrocarbons) or highly aromatic oil (liquid hydrocarbons) in a reaction furnace, and is the most productive and most diverse of carbon black varieties. The groove method is a method which is used for natural ventilation firebox, natural gas or coal bed gas passes through thousands of porcelain nozzles and is incompletely combusted with air to form diffusion flame similar to a fishtail shape, a reduction layer of the flame is in contact with the surface of slowly reciprocating channel steel to deposit carbon black particles generated by cracking on the surface of the channel steel, then the deposited carbon black is scraped into a funnel through a scraper arranged on the funnel, and the carbon black is output through a screw conveyor, granulated and manufactured into a product. Although the above two methods are widely adopted by researchers, the conditions for preparing carbon black are harsh and the process is complex.
Therefore, it is challenging and attractive to find a low cost, simple process and fast production method for carbon black.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a brand-new device for preparing carbon black based on an explosion method, and correspondingly provides a preparation method thereof.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
an apparatus for producing carbon black based on an explosion method, comprising the following components:
the detonation tube is a hollow tube with an upper port and a lower port, wherein the upper port is sealed by an upper flange, and the lower port is sealed by a lower flange;
the collecting device is an annular groove with a through hole in the middle; the collecting device is arranged on the lower flange;
the ignition system faces the interior of the detonation tube and is arranged on the lower flange, and the ignition system is clamped at the through hole;
a gas storage system for storing dry air; the gas storage system is communicated to the side wall of the detonation tube through a plurality of connecting tubes;
the bent storage pipe is used for storing carbon black preparation raw materials; the curved storage pipes are communicated to the connecting pipes in a one-to-one correspondence manner, and the inner diameter of each connecting pipe is smaller than that of each curved storage pipe;
the control valve is arranged between the curved storage pipe and the air storage system and used for controlling the dry air in the air storage system to gush into the detonation pipe through the connecting pipe and the curved storage pipe;
an atomizer configured to atomize the carbon black feedstock into the detonation tube; the atomizer sets up the connecting pipe with the junction of detonation tube, and it is a plurality of atomizer and a plurality of the connecting pipe one-to-one.
Further, the gas storage system comprises gas chambers corresponding to the control valves one by one and gas tanks communicated with the gas chambers.
Further, the gas storage system also comprises a booster pump communicated with the gas tank.
Preferably, the curved stock pipe is a U-shaped pipe.
Furthermore, the atomizing nozzle is a hollow hemispherical shape protruding outwards towards the inside of the detonation tube, and a plurality of atomizing holes are distributed on the surface of the atomizing nozzle.
Further, the length-diameter ratio of the detonation tube is 1: 1-22: 1.
Preferably, the control valve is a solenoid valve.
Further, the carbon black production apparatus further comprises:
and the delay control device is used for controlling the control valve and the ignition device to be triggered successively.
Further, the carbon black production apparatus further comprises:
a piezoelectric sensor for monitoring the pressure within the detonation tube upon detonation of the carbon black producing device; the piezoelectric sensors are fixedly arranged on the side wall of the detonation tube;
a data system electrically connected to the plurality of piezoelectric sensors and the ignition system; the data system is used for collecting pressure data obtained by the piezoelectric sensors and controlling the ignition system to be started and closed.
Preferably, the connecting tube is a hollow metal tube.
Another object of the present invention is to provide a method for producing carbon black based on any of the above carbon black producing apparatuses, comprising the steps of:
s1, storing combustible organic liquid serving as a carbon black preparation raw material in the curved storage tube;
s2, sleeving the ignition system carrying explosives and detonating substances on the lower flange and penetrating through the through hole, and sealing the detonation tube by adopting the upper flange and the lower flange;
s3, controlling the pressure of the dry air in the air storage system to reach 0.3-0.9 MPa, controlling the control valve to trigger in advance and keep 0.8-1.2S, then controlling the ignition system to delay 10-30 ms to trigger ignition, and generating explosion reaction in the detonation tube;
s4, opening the upper flange and the lower flange, and collecting the carbon black generated by the explosion reaction in the step S3.
Further, in the step S1, the carbon black preparation raw material is at least one selected from the group consisting of polymethoxy dimethyl ether, polymethoxy dibutyl ether, n-butanol, sec-butanol, exo-tetrahydrodicyclopentadiene.
Further, in the step S3, the mass concentration equivalent ratio of the carbon black preparation raw material to the dry air entering the detonation tube is 1: 1-1.2: 1.
The invention adopts a mode of carrying out explosion reaction in the detonation tube, thereby realizing the purpose of instantly preparing the carbon black, having short reaction time and high safety and reliability.
Based on the preparation device adopting the explosion reaction, the preparation method can adopt combustible organic liquid containing hydrocarbon or carbon-hydrogen-oxygen as the preparation raw material, and compared with the prior art which generally adopts natural gas as the preparation raw material, the preparation method can generate a large amount of carbon black on the premise of unit raw material; meanwhile, the preparation method has the advantages of simple process, easy operation, low preparation cost, rapid preparation process and industrialized mass production.
Drawings
The above and other aspects, features and advantages of embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of the structure of a carbon black producing apparatus according to the present invention;
FIG. 2 is a schematic structural view of a detonation tube in a carbon black producing apparatus according to the present invention;
FIG. 3 is a schematic view of the construction of a lower flange carrying a collection device in a carbon black producing apparatus according to the present invention;
FIG. 4 is a schematic view showing the structure of an atomizing head in the carbon black producing apparatus according to the present invention;
FIG. 5 is an XRD pattern of the product obtained according to example 1 of the present invention;
FIG. 6 is an SEM image of a product obtained according to example 1 of the present invention;
FIG. 7 is a Raman spectrum of the product obtained in example 1 according to the present invention;
figure 8 is an XRD pattern of the product obtained according to example 2 of the present invention;
FIG. 9 is an SEM image of a product obtained according to example 2 of the present invention;
FIG. 10 is a Raman spectrum of the product obtained in example 2 according to the present invention;
figure 11 is an XRD pattern of the product obtained according to example 3 of the present invention;
FIG. 12 is an SEM image of a product obtained according to example 3 of the present invention;
FIG. 13 is a Raman spectrum of the product obtained in example 3 according to the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to explain the principles of the invention and its practical application to thereby enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated. In the drawings, the shapes and sizes of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or similar elements.
Referring specifically to fig. 1 to 4, the present invention provides a novel carbon black production apparatus, which is studied based on the explosive method for producing carbon black.
The carbon black preparation device comprises a detonation tube 11, a collecting device 12, an ignition system 13, a gas storage system 2, a curved storage tube 3, a control valve 4 and an atomizing nozzle 14.
Specifically, the detonation tube 11 is a hollow tube having an upper port and a lower port, wherein the upper port is closed by an upper flange 111 and the lower port is closed by a lower flange 112; thus, when the upper flange 111 and the lower flange 112 close the two ports of the detonation tube 11, a sealed space for performing the explosion reaction is formed.
Generally, the length and diameter of the detonation tube 11 are not particularly limited, i.e., the size of the detonation tube 11 is not particularly limited, and may be determined by the scale of a specific manufacturing project in the actual application process. The aspect ratio is generally controlled to be 1:1 to 22: 1.
The collecting unit 12 is an annular groove having a through hole 121 in the middle thereof and is provided on the lower flange 112. The ignition system 13 faces the interior of the detonation tube 11 and is arranged on the lower flange 112, and the ignition system 13 is clamped at the through hole 121 of the annular groove; in this way, the ignition system 13 is clamped and fixed by the collecting device 12, and both are carried on the lower flange 112, i.e. inside the detonation tube 11.
The side wall of the detonation tube 11 is connected with an air storage system 2 for storing dry air through a plurality of connecting tubes 5, and the connecting tubes 6 are also communicated with a curved storage tube 3 for storing carbon black preparation raw materials; in other words, each connecting pipe 6 is correspondingly communicated with a curved stock pipe 3. Meanwhile, a control valve 4 is further disposed between each curved storage tube 3 and the air storage system 2, and the control valve 4 is used for controlling the dry air in the air storage system 2 to gush into the detonation tube 11 through the connecting tube 6 and the curved storage tube 3.
It is to be noted that the term "gush" as used herein means that the carbon black-making raw material is caused to be sprayed into the detonation tube 11 at a high speed; in other words, the dry air is in a high pressure state in the air storage system 2, and the control valve 4 is opened to rapidly spray the high pressure dry air into the connecting pipe 6, and when the dry air passes through the curved storage pipe 3, the carbon black preparation raw material stored in the curved storage pipe 3 is brought into the detonation pipe 11 and enters the detonation pipe 11 in a high speed state.
It is to be noted that, in order to allow the carbon black preparation raw material to enter the detonation tube 11 in a better manner, the inner diameter of the connection tube 6 is controlled to be smaller than the inner diameter of the curved stock tube 3. So, when high-speed dry air spouts to connecting pipe 6 and bent type storage tube 3 and is located near the junction of gas storage system 2, because of the internal diameter of connecting pipe 6 is less than the internal diameter of bent type storage tube 3, most dry air gets into bent type storage tube 3, and carry the carbon black preparation raw materials and continue to spout the direction of detonation tube 11 together, and little dry air has obtained the gas flow velocity relatively faster in the less connecting pipe 6 department of internal diameter, this process can produce the negative pressure, thereby can help the carbon black preparation raw materials of following bent type storage tube 3 and bring out to obtain faster "forward speed" through the dry air of thinner connecting pipe 6, in order to spout in detonation tube 11 more fast.
More specifically, the gas storage system 2 includes gas chambers 21 corresponding to the plurality of control valves 4 one to one, gas tanks 22 communicating with the plurality of gas chambers 21, and booster pumps 23 communicating with the gas tanks 22. So, can be through filling dry air in to gas pitcher 22, then utilize booster pump 23's effect immediately with these dry air pressure boost can, and need not directly to fill highly compressed dry air in to gas pitcher 22, promoted the security of equipment greatly.
Preferably, the curved stock pipe 3 is a U-shaped pipe, the connection pipe 6 is a hollow metal pipe, and the control valve 4 is preferably a solenoid valve.
An atomizing nozzle 14 is arranged at the joint of each connecting pipe 6 and the side wall of the detonation pipe 11 and inside the detonation pipe 11, and the atomizing nozzles 14 are used for atomizing carbon black preparation raw materials sprayed from the connecting pipes 6, so that the carbon black preparation raw materials are crushed into small liquid drops and enter the detonation pipe 11.
Preferably, referring to fig. 4 in particular, the atomizer 14 is a hollow hemisphere protruding toward the inside of the detonation tube 11, and has several fine through holes as atomization holes 141 uniformly distributed on its surface, and the carbon black raw material is broken into small liquid droplets when passing through these atomization holes 141, so as to achieve atomization. Small liquid drops with different particle diameters can be generated by changing the number and the diameter of the atomizing holes 141, so that the size of finally obtained carbon black particles is influenced; generally, the larger the diameter and the smaller the number of the atomization holes 141, the larger the particle diameter of the produced carbon black particles, and the smaller the diameter and the larger the number of the atomization holes 141, the smaller the particle diameter of the produced carbon black particles.
As a more automatic control technical scheme, the carbon black preparation device also comprises a delay control device 7, and the delay control device 7 can control the control valve 4 and the ignition device 13 to realize the sequential triggering of the two.
In order to monitor whether the explosion reaction inside the detonation tube 11 is smooth or not in real time so as to ensure the product quality of carbon black products, the carbon black preparation device further comprises a plurality of piezoelectric sensors 8 arranged on the side wall of the detonation tube 11, the piezoelectric sensors 8 are arranged on the side wall of the detonation tube 11 at equal intervals according to the direction of a vertical line from an upper port to a lower port, and the piezoelectric sensors 9 are not arranged on the same side of the communicating tube 6, preferably on the opposite side. These piezoelectric sensors 8 are also electrically connected to a data system 9. Thus, when an explosion reaction occurs inside the detonation tube 11, the corresponding pressure is monitored by the piezoelectric sensors 8 and reflected on the data system 9. Generally, the explosive reaction occurring inside the detonation tube 11 should be balanced, so that the pressures monitored by the piezoelectric sensors 9 at different positions should be equivalent, and once the pressure data of one or some piezoelectric sensors 9 is abnormal, the connecting tube 6 at the region opposite to the one or some piezoelectric sensors can be checked to see whether the explosive reaction is abnormal due to the problems of tube blockage or poor atomization effect of the atomizing nozzle 14.
The data system 9 is also electrically connected to the ignition system 13 for controlling the ignition system 13 to be turned on or off.
So, can trigger earlier through control valve 4, make the high-pressure dry air blowout in the air storage system 2, under compressed air's drive, then drive the inside carbon black preparation raw materials of bent type storage tube 3 and spout the direction to detonation tube 11 in the lump, via atomizer 14's effect, carbon black preparation raw materials forms the cloud state through atomizing, disperses in detonation tube 11. The ignition system 13 delays triggering, so that the cloud mist in the detonation tube 11 is initiated to generate an explosion reaction, and a carbon black product is obtained.
A brand new method for producing carbon black based on the explosion method, which comprises the steps of:
in step S1, a combustible organic liquid is stored as a carbon black-producing raw material in a curved storage tube.
Specifically, the carbon black is prepared from a combustible organic liquid containing hydrocarbon or oxyhydrocarbon, preferably polymethoxy dimethyl ether (CH)3O(CH2O)nCH3) Polymethoxy dibutyl ether (CH)3O(CH2O)nC4H9) N-butanol (CH)3(CH2)3OH), sec-butanol (C)4H10O), exo-tetrahydrodicyclopentadiene (JP-10, C)10H16) At least one of (1).
Compared with the preparation method adopting natural gas as the preparation raw material in the prior art, the carbon black preparation raw material can ensure that more carbon black products are prepared from unit raw material.
In step S2, the ignition system carrying the explosives and detonations is sleeved on the lower flange and penetrates through the through hole of the collecting device, and the detonation tube is sealed by the upper flange and the lower flange.
Specifically, the explosive can be selected from 1-shot 8# industrial electric detonator, while the explosive can be selected from explosive, but the total mass of the explosive is not more than 8g, the types of the explosive are not limited, and the explosive can be RDX, HMX, CL-20 and the like, and can be in a powder state.
It should be noted that, in the installation process of the electric detonator and the explosive, the electric detonator wiring system is always in a short circuit state, and the short circuit state is only released when the lower flange is sealed, so that the risk of accidental explosion of the electric detonator caused by static electricity in the operation process is minimized by the design.
In step S3, after the pressure of the dry air in the air storage system is controlled to reach 0.3MPa to 0.9MPa, the controller opens the electromagnetic valve first and keeps for 0.8S to 1.2S, and then controls the ignition delay for 10ms to 30ms to trigger ignition, so as to generate an explosion reaction in the detonation tube.
Generally, the initial pressure of the dry air in the air storage system can be maintained between 0.4MPa and 0.8 MPa.
In order to obtain a better reaction effect, the mass concentration equivalent ratio of the carbon black preparation raw material to the dry air entering the detonation tube is controlled to be 1: 1-1.2: 1.
In step S4, the upper and lower flanges are opened, and the carbon black produced by the explosion reaction in step S3 is collected.
Generally speaking, carbon black produced by the raw material for preparing carbon black through an explosion reaction is filled in the whole detonation tube, after the reaction is finished, the upper flange is firstly opened, the carbon black is brushed to be separated from the inner wall of the detonation tube and naturally falls into the collecting device, and then the lower flange is opened to take out the carbon black. And drying the obtained carbon black.
The above-described carbon black production method of the present invention will be illustrated below by specific examples, but those skilled in the art will appreciate that the carbon black production method provided by the present invention is not limited to those described in the following examples, which are merely specific examples of the carbon black production method.
Example 1
In the carbon black production apparatus used in this example, the detonation tubes were as follows: the total length (i.e. height) is 5.4m, the outer diameter is 240mm, the inner diameter is 200mm, and the experimental effective volume is about 169L; the material is 20 CrMo gun steel pipe; the number of the atomizing holes is 119, and the diameter is 0.5 mm.
First, a total of 87mL of polymethoxy dibutyl ether was added uniformly to each curve stock pipe.
Then, an ignition system carrying 1-shot No. 8 electric detonators and 3g HMX (Auktogin) is sleeved on the lower flange and penetrates through a through hole of the collecting device, and the upper flange and the lower flange are adopted to seal the detonation tube.
Thirdly, after the pressure of the dry air in the air storage system is controlled to reach 0.4MPa, a delay control device is adopted to control a control valve to trigger in advance and keep the pressure for 1s, namely the air injection time is 1 s; then the delay control device controls the ignition system to delay for 10ms, so that an explosion reaction occurs, and a product is obtained.
Finally, the obtained product is dried.
In order to verify the obtained product, XRD test, SEM test and Raman spectrum test were performed on the product, and the test results are shown in fig. 5 to 7, respectively.
As can be seen from fig. 5, two main characteristic peaks of 2 θ exist in the vicinity of 25 ° and 43 °, which correspond to the (002) plane and the (100) plane of graphite, so that it can be judged that the product is carbon black. As can be seen from fig. 6, the resulting carbon black has a spherical granular structure. As can be seen from FIG. 7, the obtained carbon black material has a Raman spectrum at 1334cm-1And 1580cm-1Two characteristic peaks are present, the two peaks respectively represent a D peak and a G peak, and the intensity ratio of the D peak to the G peak (I)D/IG) The larger value, which can indicate that the degree of graphitization of the resulting carbon black material is larger.
The particle size of the carbon black product obtained in this example was 112 nm.
Example 2
In the carbon black production apparatus used in this example, the detonation tubes were as follows: the total length (i.e. height) is 5.4m, the outer diameter is 240mm, the inner diameter is 200mm, and the experimental effective volume is about 169L; the material is 20 CrMo gun steel pipe; the number of the atomizing holes is 119, and the diameter is 0.5 mm.
First, a total of 60mL of n-butanol was added uniformly to each curve stock pipe.
Then, an ignition system carrying 1-shot No. 8 electric detonators and 3g HMX (Auktogin) is sleeved on the lower flange and penetrates through a through hole of the collecting device, and the upper flange and the lower flange are adopted to seal the detonation tube.
Thirdly, after the pressure of the dry air in the air storage system is controlled to reach 0.4MPa, a delay control device is adopted to control a control valve to trigger in advance and keep the pressure for 1s, namely the air injection time is 1 s; then the delay control device controls the ignition system to delay for 10ms, so that an explosion reaction occurs, and a product is obtained.
Finally, the obtained product is dried.
In order to verify the obtained product, XRD test, SEM test and Raman spectrum test were performed on the product, and the test results are shown in fig. 8 to 10, respectively.
As can be seen from fig. 8, two main characteristic peaks of 2 θ exist in the vicinity of 25 ° and 43 °, which correspond to the (002) plane and the (100) plane of graphite, so that it can be judged that the product is carbon black. As can be seen from fig. 9, the resulting carbon black had a spherical granular structure. As can be seen from FIG. 10, the obtained carbon black material has a Raman spectrum at 1337cm-1And 1595cm-1Two characteristic peaks are present, the two peaks respectively represent a D peak and a G peak, and the intensity ratio of the D peak to the G peak (I)D/IG) The larger value, which can indicate that the degree of graphitization of the resulting carbon black material is larger.
The particle size of the carbon black product obtained in this example was 84 nm.
Example 3
In the carbon black production apparatus used in this example, the detonation tubes were as follows: the total length (i.e. height) is 5.4m, the outer diameter is 240mm, the inner diameter is 200mm, and the experimental effective volume is about 169L; the material is 20 CrMo gun steel pipe; the number of the atomizing holes is 119, and the diameter is 0.5 mm.
First, a total of 40mL of JP-10 was uniformly added to each curve stock pipe.
Then, an ignition system carrying 1-shot No. 8 electric detonators and 3g HMX (Auktogin) is sleeved on the lower flange and penetrates through a through hole of the collecting device, and the upper flange and the lower flange are adopted to seal the detonation tube.
Thirdly, after the pressure of the dry air in the air storage system is controlled to reach 0.4MPa, a delay control device is adopted to control a control valve to trigger in advance and keep the pressure for 1s, namely the air injection time is 1 s; then the delay control device controls the ignition system to delay for 10ms, so that an explosion reaction occurs, and a product is obtained.
Finally, the obtained product is dried.
In order to verify the obtained product, XRD test, SEM test and Raman spectrum test were performed on the product, and the test results are shown in fig. 11 to 13, respectively.
As can be seen from fig. 11, two main characteristic peaks of 2 θ exist in the vicinity of 25 ° and 43 °, which correspond to the (002) plane and the (100) plane of graphite, so that it can be judged that the product is carbon black. As can be seen from fig. 12, the resulting carbon black had a spherical granular structure. As can be seen from FIG. 13, the Raman spectrum of the obtained carbon black material is 1364cm-1And 1579cm-1Two characteristic peaks are present, the two peaks respectively represent a D peak and a G peak, and the intensity ratio of the D peak to the G peak (I)D/IG) The larger value, which can indicate that the degree of graphitization of the resulting carbon black material is larger.
The particle size of the carbon black product obtained in this example was 55 nm.
While the invention has been shown and described with reference to certain embodiments, those skilled in the art will understand that: various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. An apparatus for producing carbon black based on an explosion method, comprising:
the detonation tube is a hollow tube with an upper port and a lower port, wherein the upper port is sealed by an upper flange, and the lower port is sealed by a lower flange;
the collecting device is an annular groove with a through hole in the middle; the collecting device is arranged on the lower flange;
the ignition system faces the interior of the detonation tube and is arranged on the lower flange, and the ignition system is clamped at the through hole;
a gas storage system for storing dry air; the gas storage system is communicated to the side wall of the detonation tube through a plurality of connecting tubes;
the bent storage pipe is used for storing carbon black preparation raw materials; the curved storage pipes are communicated to the connecting pipes in a one-to-one correspondence manner, and the inner diameter of each connecting pipe is smaller than that of each curved storage pipe;
the control valve is arranged between the curved storage pipe and the air storage system and used for controlling the dry air in the air storage system to gush into the detonation pipe through the connecting pipe and the curved storage pipe;
an atomizer configured to atomize the carbon black feedstock into the detonation tube; the atomizer sets up the connecting pipe with the junction of detonation tube, and it is a plurality of atomizer and a plurality of the connecting pipe one-to-one.
2. The carbon black producing apparatus according to claim 1, wherein the gas storage system comprises a plurality of gas chambers in one-to-one correspondence with the plurality of control valves, and a gas tank communicating with the plurality of gas chambers.
3. The carbon black producing apparatus as claimed in claim 2, wherein the gas storage system further comprises a booster pump in communication with the gas tank.
4. The apparatus for preparing carbon black according to claim 1, wherein the atomizer has a hollow hemispherical shape protruding outward toward the inside of the detonation tube, and a plurality of atomization holes are distributed on the surface of the atomizer.
5. The carbon black production apparatus according to claim 1, wherein the detonation tube has an aspect ratio of 1:1 to 22: 1.
6. The carbon black producing apparatus according to any one of claims 1 to 5, characterized by further comprising:
and the delay control device is used for controlling the control valve and the ignition device to be triggered successively.
7. The carbon black producing apparatus according to claim 6, characterized by further comprising:
a piezoelectric sensor for monitoring the pressure within the detonation tube upon detonation of the carbon black producing device; the piezoelectric sensors are fixedly arranged on the side wall of the detonation tube;
a data system electrically connected to the plurality of piezoelectric sensors and the ignition system; the data system is used for collecting pressure data obtained by the piezoelectric sensors and controlling the ignition system to be started and closed.
8. A method for producing carbon black based on the carbon black producing apparatus according to any one of claims 1 to 7, characterized by comprising the steps of:
s1, storing combustible organic liquid serving as a carbon black preparation raw material in the curved storage tube;
s2, sleeving the ignition system carrying explosives and detonating substances on the lower flange and penetrating through the through hole, and sealing the detonation tube by adopting the upper flange and the lower flange;
s3, controlling the pressure of the dry air in the air storage system to reach 0.3-0.9 MPa, controlling the control valve to trigger in advance and keep 0.8-1.2S, then controlling the ignition system to delay 10-30 ms to trigger ignition, and generating explosion reaction in the detonation tube;
s4, opening the upper flange and the lower flange, and collecting the carbon black generated by the explosion reaction in the step S3.
9. The method of producing carbon black according to claim 8, wherein in the step S1, the carbon black production feedstock is at least one selected from the group consisting of polymethoxy dimethyl ether, polymethoxy dibutyl ether, n-butanol, sec-butanol, exo-tetrahydro dicyclopentadiene.
10. The method for producing carbon black according to claim 9, wherein in the step S3, the mass concentration equivalent ratio of the carbon black production feedstock to the dry air entering the detonation tube is 1:1 to 1.2: 1.
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| CN202011141742.8A CN112111181B (en) | 2020-10-22 | 2020-10-22 | Carbon black preparation device and method based on explosion method |
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| CN202011141742.8A CN112111181B (en) | 2020-10-22 | 2020-10-22 | Carbon black preparation device and method based on explosion method |
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