Carbon black reactor with cooling function

Abstract

The present invention relates to a carbon black reactor having a cooling function that does not change the diameter of a combustion port by continuously cooling the combustion port of a reactor that causes a chemical reaction at a high temperature to generate carbon black. The carbon black reactor includes a pair of flanges spaced apart from each other, and a combustion port 113 that is a through central portion connecting the spaced-apart flanges, and a main body made of a metal material having the combustion port 113 where a reaction of combustion gas and raw material oil occurs, a plurality of injection nozzles for injecting raw material oil into the combustion port, a pair of cooling chambers provided on the inner plate surfaces of the flanges facing each other, the pair of cooling chambers being configured to exchange heat with the flanges while spreading cooling water over the entire surface of the flanges, a distribution cooling pipe disposed so as to surround the outer peripheral surface of the combustion port and forming a flow path with a space therebetween, the distribution cooling pipe being partitioned by a partition plate into a first supply flow path and a second supply flow path and guiding the supplied cooling water to each cooling chamber while exchanging heat with the entire combustion port, a pair of cooling water supply pipes provided in each of the first supply flow path and the second supply flow path for supplying cooling water, and a cooling water discharge pipe provided in each of the pair of cooling chambers for discharging the heat-exchanged cooling water.

Description

[Technical Field]

[0001] The present invention relates to a carbon black reactor, and more particularly to a carbon black reactor with cooling capability that continuously cools a reactor in which a chemical reaction occurs at high temperatures to produce carbon black, without changing the diameter of a combustion port located inside the reactor. [Background technology]

[0002] Generally, carbon black is widely used in various fields such as inks, paints, reinforcing fillers, conductive materials, cathode materials for secondary batteries, electromagnetic wave shielding materials, heating components, etc. Carbon black has excellent physicochemical and thermal properties such as conductivity, chemical resistance, weather resistance, and heat resistance, and is produced in the form of pellets, powder, etc. together with various ceramic materials and used as an additive in various products.

[0003] Therefore, producing a uniformly dispersed carbon black product is an important factor in casting processes such as slip casting, tape casting, injection molding and extrusion.

[0004] Carbon black is produced by a furnace method, a channel method, a thermal method, an acetylene method, etc., and among these, the furnace method is the most commonly used method because it allows carbon black to be produced more efficiently.

[0005] In the furnace process, as shown in FIG. 1, liquid or gaseous combustion oil is supplied through a nozzle together with air into a heating furnace 10, the interior of which has been heated to a high temperature. This reacts with an oxidizer to generate high-temperature combustion gas. The generated combustion gas then passes through a reactor 20, into which a feedstock oil (such as bunker C oil) is injected through an injection nozzle 21, and chemically reacts with the feedstock oil at high temperatures (over 1500°C). This causes incomplete combustion, pyrolysis, or dehydrogenation, resulting in the generation of a mixed gas containing carbon black. The generated mixed gas is then processed into specific shaped products such as pellets or beads through a conventional capture process and molding process, and is then commercialized.

[0006] In this case, the reactor 20 becomes a high temperature environment due to the combustion of the combustion gas and raw oil, and the movement speed becomes fast, so it is necessary to line the reactor 20 with a highly heat-resistant fire-resistant material 23 .

[0007] As shown in FIG. 2, such a refractory material 23 is arranged in the reactor with a predetermined thickness, and a circular combustion port 25 is formed in the center thereof where the raw material oil and combustion gas supplied thereto are combusted.

[0008] However, even if the refractory material 23 has high heat resistance, a high temperature environment is maintained in the combustion port 25, and therefore the inner diameter of the combustion port 25 of the refractory material 23 gradually melts during use for about 3 to 4 months, causing the shape of the inner diameter to change, and therefore the reactor 20 must be replaced periodically.

[0009] If continuous operation is performed with the inside diameter of the combustion port 25 changed, the production volume will change depending on the data value set for the combustion port, resulting in a fatal problem of deterioration in the quality of the carbon black.

[0010] Furthermore, the fire-resistant material is made from a Class 1 carcinogen, which poses environmental disposal problems. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Korean Patent Publication No. 10-2019-0078848 [Patent Document 2] Korean Patent No. 10-0602542 Summary of the Invention [Problem to be solved by the invention]

[0012] The present invention has been made to solve the above-mentioned problems and technical drawbacks, and an object of the present invention is to provide a carbon black reactor having a cooling function, in which cooling water is continuously circulated in a combustion port made of a metal material and heated to a high temperature, thereby cooling the entire combustion port and preventing the diameter of the combustion port from changing. [Means for solving the problem]

[0013] The carbon black reactor having a cooling function of the present invention, which achieves the above-mentioned object, includes a main body made of a metal material having a pair of flanges spaced apart from each other and a combustion port 113 that serves as a penetrating central portion connecting the spaced apart flanges, where the combustion port 113 causes a reaction between combustion gas and a feedstock oil; a plurality of injection nozzles for injecting the feedstock oil into the combustion port; a pair of cooling chambers provided on opposing inner plate surfaces of the flanges, respectively, and configured to exchange heat with the flanges while spreading cooling water over the entire surface of the flanges; a distribution cooling pipe arranged to surround the outer peripheral surface of the combustion port and forming spaced-apart flow paths, the distribution cooling pipe being divided by a partition plate into a first supply flow path and a second supply flow path, and the distribution cooling pipe directs the supplied cooling water to each cooling chamber while exchanging heat with the entire combustion port; a pair of cooling water supply pipes provided in the first supply flow path and the second supply flow path, respectively, for supplying cooling water; and a cooling water discharge pipe provided in each of the pair of cooling chambers for discharging the cooling water that has been heat exchanged.

[0014] In this case, the cooling chamber preferably comprises a circular cooling housing that is disposed on the inner plate surface of the flange with the distribution cooling pipes passing through it and that forms a cooling space so that cooling water can be guided from the distribution cooling pipes for heat exchange with the flange, and a spiral guide that is disposed inside the cooling housing and that forms a flow path so that the cooling water guided from the distribution cooling pipes spreads outward in a spiral shape toward the outside of the plate surface of the flange.

[0015] Preferably, inlet holes communicating with the cooling chamber are formed at both ends of the distribution cooling pipe so that the cooling water supplied to the first and second supply flow paths respectively flows into the cooling chamber.

[0016] Furthermore, it is preferable that a gap be formed inside each of the first and second supply flow paths of the distribution cooling pipe so that the gap is inclined at an angle of 25 to 35 degrees and spaced apart from the outer peripheral surface of the combustion port while the distribution cooling pipe is fixed to the distribution cooling pipe, thereby allowing the flow velocity of the cooling water passing through the gap to be concentrated at both ends of the combustion port.

[0017] In addition, it is preferable that a recess be formed on the flange plate surface on which the cooling chamber is provided to delay the flow period of the cooling water so that heat exchange of the cooling water flowing within the cooling chamber can be concentrated at both ends of the combustion port.

[0018] The injection nozzles, in turn, are preferably connected to a plurality of injection sockets that extend through the distribution cooling pipes and are arranged radially about the combustion port.

[0019] In addition, it is preferable that a notch portion made of a heat-resistant metal material be further provided around the diameter of one end of the combustion port to reinforce the diametric corner of the combustion port against carbonization.

[0020] Finally, a plurality of support members are preferably disposed radially between the pair of flanges to maintain the flanges spaced apart. [Effects of the Invention]

[0021] According to the carbon black reactor with cooling function of the present invention having the above-mentioned configuration, the combustion port of the carbon black reactor is made of a heat-resistant metal material, and cooling water is supplied in both directions to increase the cooling efficiency of the combustion port heated to a high temperature. The combustion port is cooled while the supplied cooling water is circulating while enveloping the combustion port, thereby achieving the excellent effect of fundamentally preventing deformation of the diameter of the combustion port due to continuous exposure to high temperatures as occurs in the conventional carbon black reactor.

[0022] In particular, the structural effect of concentrating the flowing cooling water at the weak portion around the diameter of the end of the combustor is excellent, further enhancing the stability of the weak portion.

[0023] Furthermore, since the geometry of the combustion port in the carbon black reactor is maintained, the quality of the carbon black produced can be kept constant, and, among other benefits, refractory waste is not generated as in the prior art. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a reference diagram of a conventional reactor installed in a carbon black production system. [Figure 2] FIG. 2 is a perspective view of a conventional reactor. [Figure 3] FIG. 3 is a reference diagram showing the case where the carbon black reactor of the present invention is installed in a carbon black production system. [Figure 4] FIG. 4 is a perspective view and a detailed cross-sectional view of a carbon black reactor of the present invention. [Figure 5] FIG. 5 is a perspective view and a detailed cross-sectional view of a carbon black reactor of the present invention. [Figure 6] FIG. 6 is a detailed cross-sectional view taken along line II in FIG. 5, with the cooling housing of the cooling chamber removed. [Figure 7] FIG. 7 is a detailed cross-sectional view taken along line II-II in FIG. 5, with the cooling housing of the cooling chamber removed. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The present embodiments are provided to explain the present invention in more detail to those skilled in the art. Therefore, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.

[0026] Terms such as "first," "second," and the like may be used to describe various components, but the components should not be limited by the terms. These terms are used only to distinguish one component from another.

[0027] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. As used in this application, terms such as "comprise" or "have" are intended to specify features, values, steps, operations, components, parts, or combinations thereof described herein, but it is understood that they do not preclude the presence or additional possibility of one or more other features, values, steps, operations, components, parts, or combinations thereof.

[0028] FIG. 3 is a reference diagram illustrating the installation of a carbon black reactor of the present invention in a carbon black production system, FIGS. 4 and 5 are a perspective view and a detailed cross-sectional view of the carbon black reactor of the present invention, FIG. 6 is a detailed cross-sectional view taken along line II in FIG. 5, with the cooling housing of the cooling chamber removed, and FIG. 7 is a detailed cross-sectional view taken along line II-II in FIG. 5, with the cooling housing of the cooling chamber removed.

[0029] As shown in FIGS. 3 to 7 , the carbon black reactor 100 of the present invention comprises a main body 110 made of a metal material having a pair of flanges 111 spaced apart from each other and a combustion port 113 which connects the spaced apart flanges 111 and serves as a penetrating central portion through which a reaction between combustion gas and a feedstock oil occurs, a plurality of injection nozzles 120 which inject feedstock oil into combustion port 113, and a pair of cooling chambers 130 respectively provided on inner plate surfaces of flanges 111 facing each other, and which are configured to heat exchange flanges 111 while spreading cooling water over the entire surface of flanges 111. the distribution cooling pipes 140 are arranged to surround the outer peripheral surface of the combustion port 113 and form flow paths at intervals, and are divided by a partition plate 141 into a first supply flow path 142 and a second supply flow path 143, and the distribution cooling pipes guide the supplied cooling water to each cooling chamber 130 while exchanging heat with the entire combustion port 113; a pair of cooling water supply pipes 150 are provided in the first supply flow path 142 and the second supply flow path 143, respectively, and supply the cooling water; and a cooling water discharge pipe 160 is provided in each of the pair of cooling chambers 130 and discharges the cooling water that has been heat exchanged.

[0030] The most important feature of the carbon black reactor 100 of the present invention is that the combustion port 113 of the reactor, which produces a mixed gas containing carbon black through a reaction between combustion gas and feedstock oil, is made of a metal material, and the reactor is equipped with a structure for cooling the combustion port 113, which is continuously exposed to a high-temperature environment, to prevent deformation of the diameter shape of the combustion port 113.

[0031] Furthermore, the structures to be described later for forming the carbon black reactor 100 are made of heat-resistant metal materials, and each structure is arranged by welding.

[0032] Furthermore, pairs of identical structures are given the same reference numerals, and only a single structure will be described to avoid confusion in the description.

[0033] The carbon black reactor 100 of the present invention is connected to the heating furnace 10 on the left side of the drawing, and as shown in FIG. 3, in a system pipeline for producing carbon black, liquid or gaseous combustion oil is supplied together with air to react with an oxidant to produce high-temperature combustion gas.

[0034] A separate transfer pipe is provided on the right side of the carbon black reactor 100 in the drawing, and the mixed gas containing carbon black produced by the reaction between the combustion gas and the feedstock oil can be transferred to a subsequent process within the carbon black reactor 10. Since the subsequent process for the mixed gas is common to both reactors, its description is omitted.

[0035] The main body 110 reacts the combustion gas introduced from the heating furnace 10 with the supplied feedstock oil, and is provided with a pair of flanges 111 made of a metal material and a combustion port 113 .

[0036] As shown in FIGS. 4 and 5, the pair of flanges 111 are formed in a disk shape having a predetermined thickness, and are provided facing each other with a predetermined gap therebetween.

[0037] The cylindrical combustion port 113 is formed by connecting two spaced flanges 111 together to form a pair of integral flanges 111, and the center of the combustion port 113 is circularly penetrated in the longitudinal direction, allowing the combustion gas induced from the heating furnace 10 to react with the raw material oil supplied through the injection nozzle 120 described below.

[0038] Here, the pair of flanges 111 and the combustion port 113 are made of different heat-resistant metal materials, and in the case of the combustion port 113, SUS316L with a reduced carbon concentration is preferred so that it can withstand high-temperature environments (above 1500 degrees), while in the case of the pair of flanges 111, SUS304 with chromium, nickel, and manganese added to iron is preferred.

[0039] As shown in FIG. 5, a pair of flanges 111 and combustion port 113 are welded together to form a single body 110.

[0040] Furthermore, a plurality of connection holes 111b are formed on the outer periphery of flange 111, through which bolts (not shown) pass to connect flange 111 to adjacent pipes.

[0041] The materials of combustion port 113 and flange 111 in this embodiment are merely examples, and are not limited to metals that can withstand high temperature environments.

[0042] On the other hand, as shown in FIG. 5, a notch portion 114 made of a heat-resistant metal material may be further provided around the diameter of one end of the combustion port 113 (on the right side in the direction of exhaust of the mixed gas in the figure) to reinforce the diameter edge of the combustion port 113 to prevent carbonization due to high temperatures caused by the reaction between the combustion gas and the feedstock oil.

[0043] In this case, notch portion 114 is preferably made of dual-phase stainless steel 2207, which is a heat-resistant metallic material, and is fixed to the diameter edge of combustion port 113 by welding.

[0044] The injection nozzles 120 can directly inject the feedstock oil (bunker C oil) into the combustion port 113 so that the combustion gas flowing into the combustion port 113 reacts with the feedstock oil, and as shown in Figures 4 to 7, four nozzles are installed radially along the diameter of the combustion port 113.

[0045] In this case, the injection nozzle 120 is connected to four injection sockets 121 radially connected to the combustion port 113 along the diameter of the combustion port 113, while passing through the distribution cooling pipe 140 described later, and is also connected to the supply line of a raw oil supply tank (not shown).

[0046] The injection socket 121 is provided to pass through the distribution cooling pipe 140, thereby enabling stable support of the injection nozzle 120 connected to the injection socket 121 to be achieved simultaneously with support of the injection socket 121 connected to the combustion port 113.

[0047] Additionally, injection nozzle 120 is connected to a feedstock supply tank (not shown) and injects feedstock into combustion port 113 via supply pressure.

[0048] In this embodiment, four injection nozzles 120 are provided, but the number is not limited thereto and can be changed depending on the diameter of the combustion port 113.

[0049] The cooling chamber 130 spreads the cooling water introduced through the distribution cooling pipe 140 described later over the entire surface of the flange 111, enabling heat exchange (cooling) of the flange 111.The cooling chamber 130 is configured as a pair and is provided on the inner plate surfaces of the pair of flanges 111, facing each other.

[0050] In detail, the cooling chamber 130 is configured so that the cooling water supplied to the distribution cooling pipe 140 primarily cools the combustion port 113, and secondarily cools the entire surface of the flange 111 in the process of flowing toward the cooling water discharge pipe 160 described later.

[0051] 4 to 7, the pair of cooling chambers 130 have the same structure, so only a single cooling chamber 130 will be described. The cooling chamber 130 includes a cooling casing 131 and a spiral guide 133.

[0052] As shown in FIG. 5, the cooling housing 131 is arranged on the inner plate surface of the opposing flange 111 in a circular shape corresponding to the flange 111, and has a distribution cooling pipe 140 (described later) passing through it.

[0053] In this case, the cooling housing 131 is maintained at a predetermined height so that cooling water is guided from the distribution cooling pipe 140 for heat exchange over the entire surface of the flange 111 and a cooling space is formed in which the spiral guide 133 described later is placed.

[0054] As shown in FIGS. 6 and 7, the spiral guide 133 maintains a spiral shape with a predetermined height, thereby forming a flow path through which the cooling water flowing into the cooling housing 131 flows.

[0055] Specifically, the spiral guide 133 is arranged inside the cooling housing 131 and forms a spiral path, so that the cooling water that has undergone heat exchange in the combustion port 113 and is guided through the distribution cooling pipe 140 spreads spirally from the center of the flange 111 toward the outside of the plate surface, enabling heat exchange over the entire surface of the flange 111.

[0056] Therefore, the spiral guide 133 forms a long path for the cooling water to flow, enlarging the heat exchange contact area and allowing the cooling water to flow rapidly through the spiral path.

[0057] Without the spiral guide 133, the cooling water around the cooling water discharge pipe 160 described below can be discharged quickly, but the discharge of the cooling water away from the cooling water discharge pipe 160 is slower, which changes the temperature distribution of the cooling water flowing inside the cooling chamber 130 and prevents uniform heat exchange.

[0058] On the other hand, as shown in FIG. 5, a circular recess 111a having a predetermined height and width and centered on the combustion port 113 may be formed on the plate surface of the flange 111 covered by the cooling housing 131 of the cooling chamber 130, thereby concentrating the heat exchange of the cooling water flowing along the spiral guide 133 of the cooling chamber 130 near the end of the combustion port 113.

[0059] Such recesses 111a make the flow passage through which the cooling water can flow deeper and wider, and delay the flow period of the cooling water flowing through the spiral guide 133 only in the recesses 111a, so that concentrated heat exchange can be performed near the end of the combustion port 113, as shown in FIG. 5.

[0060] In addition, it goes without saying that the screw guide 133 in the portion where the recess 111a is formed is provided so as to extend up to the recess 111a, as shown in FIG.

[0061] The distribution cooling pipe 140 mainly exchanges heat with the cooling water supplied via the cooling water supply pipe 150 (described later) throughout the combustion port 113, and then flows it to each cooling chamber 130 provided in the pair of flanges 111.

[0062] For this reason, as shown in Figures 4 to 7, distribution cooling pipe 140 has a predetermined length, both ends are fixed to the inner surfaces of a pair of flanges 111, and is cylindrical in shape so as to cover the outer peripheral surface of combustion port 113 at a distance, thereby forming a flow path through which cooling water flows between distribution cooling pipe 140 and the outer peripheral surface of combustion port 113.

[0063] The flow path between the distribution cooling pipe 140 and the outer peripheral surface of the combustion port 113 is divided into a first supply flow path 142 and a second supply flow path 143 by a partition plate 141 arranged in the center of the longitudinal direction of the distribution cooling pipe 140, so that the supplied cooling water is simultaneously guided to each cooling chamber 130 provided in the pair of flanges 111.

[0064] In addition, as shown in Figures 5 to 7, an inlet hole 140a communicating with the cooling chamber 130 is formed at each end of the distribution cooling pipe 140, so that the cooling water supplied to the first supply flow path 142 and the second supply flow path 143 is guided to each cooling chamber 130 provided in both flanges 111.

[0065] As shown in Figures 6 and 7, the inlet hole 140a is formed to communicate with the front end of the spiral guide 133 of the cooling chamber 130, thereby allowing the flow of introduced cooling water to occur from the center of the spiral guide 133.

[0066] In this way, the cooling water supplied to the first supply flow path 142 and the second supply flow path 143 by the distribution cooling pipe 140 can contact the entire surface of the combustion port 113 while circulating to each cooling chamber 130 through each communication port, making continuous heat exchange possible throughout the entire combustion port 113 using the initially supplied cooling water.

[0067] On the other hand, as shown in FIG. 5, a ring-shaped focusing baffle plate 144 having a slope in the range of 25 to 35 degrees is provided inside each of the first supply flow path 142 and the second supply flow path 143 of the distribution cooling pipe 140.

[0068] The outer periphery of the converging baffle plate 144 is fixed to the inner periphery of the distribution cooling pipe 140, and its inner diameter penetrates the outer periphery of the combustion port 113 and is positioned away from that outer periphery, thereby forming a gap t between the inner diameter and the outer periphery of the combustion port 113 through which the cooling water passes.

[0069] As shown by the arrows in the enlarged view of Figure 5, the gap t concentrates the flow rate of the passing cooling water at the corners at both ends of the combustion port 113, thereby inducing concentrated heat exchange at the corners that are continuously subjected to pressure due to the reaction between the combustion gas and the feedstock oil, and fundamentally preventing the phenomenon in which the inner diameter of the corners of the relatively fragile part A melts due to long-term exposure to a high-temperature environment.

[0070] If the inclination of the converging baffle plate 144 is formed at an angle of 25 degrees or less, the inclination becomes too gentle, causing the cooling water to collide with the converging baffle plate 144 and form vortices, resulting in flow stagnation, slowing down the flow passing through the gap t, and inhibiting concentrated heat exchange at the weak part A. If the inclination is formed at an angle of 35 degrees or more, the cooling water will pass through the gap t too quickly due to the steep inclination, reducing the heat exchange efficiency at the weak part A.

[0071] Therefore, it is ideal to maintain the inclination of the converging baffle plate 144 in the range of 25 to 35 degrees, and within this range of inclination, heat exchange at the fragile portion A can be maximized according to the flow rate of the cooling water passing through the gap t.

[0072] The cooling water supply pipes 150 are formed as a pair and, as shown in FIGS. 4 to 7, are provided directly in the first supply flow path 142 and the second supply flow path 143 to ensure the supply of cooling water.

[0073] The cooling water discharge pipes 160 are formed as a pair and are provided in each cooling casing 131 of the cooling chamber 130 provided in each flange 111, as shown in Figures 4 to 7, and can discharge the cooling water that has exchanged heat while flowing along the combustion port 113 and the cooling chamber 130.

[0074] In this case, the cooling water discharged from the cooling water discharge pipe 160 flows into a cooling tower (not shown), and the cooling water whose temperature drops as it passes through the cooling tower is re-supplied to the first supply flow path 142 and the second supply flow path 143 via the cooling water supply pipe 150, and heat exchanges the reactor through continuous circulation.

[0075] Meanwhile, a plurality of support members 115 are arranged radially between the pair of flanges 111, and can maintain the flanges 111 in a spaced apart state.

[0076] That is, the radial support members 115 essentially prevent the spaced flanges 111 from tilting in any direction, thereby maintaining the bond between the structures secured by the welds.

[0077] In this embodiment, the support member 115 is disposed between the pair of cooling chambers 130, but the position is not limited to this.

[0078] Hereinafter, the heat exchange method for the carbon black reactor 100 according to the present invention will be described with reference to the accompanying drawings.

[0079] When the feedstock oil is fed into the carbon black reactor 100 through the injection nozzle 120, the induced combustion gas and the feedstock oil react in the combustion port 113 at high temperature to produce a mixed gas containing carbon black.

[0080] In this case, cooling water is supplied to the first supply flow path 142 and the second supply flow path 143 of the distribution cooling pipe 140 via two cooling water supply pipes 150 for cooling the carbon black reactor 100.

[0081] The cooling water supplied to first supply flow path 142 and second supply flow path 143 flows inside first supply flow path 142 and second supply flow path 143, comes into contact with combustion port 113, and exchanges heat with combustion port 113.

[0082] As shown in the enlarged view of Figure 5, when the cooling water passing through the combustion port 113 passes through the gap t of the converging baffle plate 144, the flow rate increases and heat exchange occurs intensively at the weak part A at the end of the combustion port 113.

[0083] The cooling water that has passed through the weak portion A flows into the spiral guide 133 of the cooling chamber 130 through the inlet hole 140 a, is guided in a spiral direction along the spiral guide 133 , and spreads over the entire plate surface of the flange 111 .

[0084] In this case, the cooling water comes into contact with the flange 111 while flowing through the spiral guide 133 and exchanges heat, and is finally supplied to a cooling tower (not shown) through a cooling water discharge pipe 160.

[0085] The cooling water supplied to the cooling tower is resupplied at a low temperature to the first supply flow path 142 and the second supply flow path 143 via the cooling water supply pipe 150, and repeatedly circulates within the carbon black reactor 100 to exchange heat.

[0086] As described above, the carbon black reactor of the present invention has a combustion port made of a heat-resistant metal material, and cooling water is supplied in both directions to increase the cooling efficiency of the combustion port heated to a high temperature. The combustion port is cooled while the supplied cooling water is circulating while enveloping the combustion port, thereby achieving the excellent effect of fundamentally preventing deformation of the combustion port diameter due to continuous exposure to high temperatures as occurs in conventional methods.

[0087] In particular, the structural effect of concentrating the flowing cooling water at the weak portion around the diameter of the end of the combustor is excellent, further enhancing the stability of the weak portion.

[0088] Furthermore, since the geometry of the combustion port in the carbon black reactor is maintained, the quality of the carbon black produced can be kept constant, and, among other benefits, refractory waste is not generated as in the prior art.

[0089] Although the carbon black reactor of the present invention has been described above with reference to preferred embodiments and the accompanying drawings, this is only for facilitating understanding of the present invention and is not intended to limit the technical scope of the present invention.

[0090] In other words, a person skilled in the art can make various modifications and changes without departing from the technical idea of ​​the present invention, and such modifications and changes belong to the technical scope of the present invention in light of the description of the appended claims. [Explanation of symbols]

[0091] 100: Carbon black reactor 110: Main body 111: flange 111a: recess 111b: Connecting hole 113: Combustion port 114: Notch portion 115: Support member 120: Injection nozzle 121: Injection socket 130: Cooling chamber 131: Cooling housing 133: Spiral guide 140: Distribution cooling pipe 140a: Entrance hall 141: Partition board 142: First supply flow path 143: Second supply flow path 144: Converging baffle plate 150: Cooling water supply pipe 160: Cooling water discharge pipe t: Gap

Claims

1. A carbon black reactor with cooling function, a main body (110) made of a metal material having a pair of flanges (111) spaced apart from each other and a combustion port (113) that is a through-hole central portion connecting the spaced apart flanges (111), where a reaction between combustion gas and raw oil occurs; a plurality of injection nozzles (120) configured to inject feedstock into the combustion ports (113); a pair of cooling chambers (130) respectively provided on inner plate surfaces of the flanges (111) facing each other, the pair of cooling chambers configured to exchange heat with the flanges (111) while spreading cooling water over the entire surface of the flanges (111); a distribution cooling pipe (140) arranged to surround the outer peripheral surface of the combustion port (113) and forming flow paths at intervals, the distribution cooling pipe being divided into a first supply flow path (142) and a second supply flow path (143) by a partition plate (141), and guiding the supplied cooling water to each cooling chamber (130) while exchanging heat with the entire combustion port (113); a pair of cooling water supply pipes (150) provided in the first supply flow path (142) and the second supply flow path (143), respectively, for supplying cooling water; a cooling water discharge pipe (160) provided in each of the pair of cooling chambers (130) for discharging heat-exchanged cooling water; Here, the cooling chamber (130) is a circular cooling housing (131) that is disposed on the inner plate surface of the flange (111) with the distribution cooling pipe (140) passing through it and that forms a cooling space through which cooling water can flow from the distribution cooling pipe (140) for heat exchange with the flange (111); The cooling system further includes a spiral guide (133) disposed inside the cooling housing (131) and forming a flow path so that the cooling water guided from the distribution cooling pipe (140) spreads outward in a spiral shape toward the outside of the plate surface of the flange (111).

2. 2. The carbon black reactor of claim 1, wherein inlet holes (140a) communicating with the cooling chamber (130) are formed at both ends of the distribution cooling pipe (140), and cooling water supplied to the first and second supply channels (142, 143), respectively, flows into the cooling chamber (130).

3. 2. The carbon black reactor according to claim 1, wherein a gap (t) is formed inside the first and second supply flow paths (142, 143) of the distribution cooling pipe (140) so as to be spaced apart and inclined at an angle of 25 degrees to 35 degrees from the outer circumferential surface of the combustion port (113) in a state where the distribution cooling pipe (140) is fixed to the distribution cooling pipe (140), and the flow velocity of the cooling water passing through the gap (t) is concentrated at both ends of the combustion port (113).

4. 2. The carbon black reactor according to claim 1, wherein a recess (111a) for delaying a period of flow of cooling water is formed in a plate surface of the flange (111) provided with the cooling chamber (130), and heat exchange of the cooling water flowing through the cooling chamber (130) is concentrated at both ends of the combustion port (113).

5. 2. The carbon black reactor of claim 1, wherein the injection nozzle (120) is connected to a plurality of injection sockets (121) that extend through the distribution cooling tubes (140) and are radially disposed about the combustion port (113).

6. 2. The carbon black reactor of claim 1, further comprising a notch portion (114) made of a heat-resistant metal material around the diameter of one end of the combustion port (113) to reinforce the carbonization of the diameter corner of the combustion port (113).

7. 2. The carbon black reactor of claim 1, wherein a plurality of support members (115) are radially disposed between the pair of flanges (111) to maintain the flanges (111) spaced apart.

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