A highly efficient waste heat recovery and utilization carbon black production device

Abstract

The present invention relates to the field of carbon black production lines, and in particular to a carbon black production device with efficient waste heat recovery and utilization, comprising a reactor, an air preheater, a waste heat boiler, a main bag filter, and a wet granulator, and also comprising a low-temperature crude oil preheater and a high-temperature crude oil preheater. The present invention introduces the 400°C flue gas from the crude oil preheater into a drum dryer as a heat source to dry the carbon black from the wet granulator, thereby achieving waste heat reuse. Reusing waste heat reduces the amount of quenching water used, increases the proportion of combustible gas in the high-temperature flue gas, and improves the calorific value of the tail gas. The present invention eliminates the need for a tail gas combustion furnace in traditional dryers to provide a heat source for drying carbon black, and reduces the equipment such as the tail gas combustion furnace, tail gas furnace air supply fan, tail gas furnace water seal, and tail gas furnace gas pipe, thereby achieving energy conservation and consumption reduction. After the tail gas combustion furnace is eliminated in the present invention, the labor intensity of the operator is reduced, and the safety risks of tail gas furnace flameout and tail gas furnace explosion in the initial stage of ignition are eliminated.

Description

Technical Field

[0001] The present invention relates to the field of carbon black production lines, and in particular to a carbon black production device with high-efficiency waste heat recovery and utilization. Background Art

[0002] In the existing carbon black production line, the 400℃ high-temperature flue gas is cooled to about 250℃ by quenching water (subject to the maximum temperature that the carbon black dust filter material can withstand) and directly enters the main bag filter system. During this period, the flue gas is cooled from 400℃ to 250℃ entirely by quenching water, and the waste heat is not reused. Summary of the Invention

[0003] In order to effectively utilize the waste heat of flue gas in a carbon black production line, the present invention provides a carbon black production device with high efficiency waste heat recovery and utilization.

[0004] The present invention is achieved through the following technical solutions: a high-efficiency waste heat recovery and utilization carbon black production device, comprising a reactor, an air preheater, a waste heat boiler, a main bag filter and a wet granulator, and also comprising a low-temperature raw oil preheater and a high-temperature raw oil preheater;

[0005] The reactor comprises a combustion section, a throat section, a reaction section, and a retention section; the combustion section is provided with an air inlet, a raw oil nozzle, and a coke oven gas inlet; the air inlet of the combustion section is connected to the air outlet of the air preheater; the retention section is connected to the flue gas inlet of the air preheater; and the raw oil nozzle is connected to the refrigerant outlet of the high-temperature raw oil preheater via a raw oil pipeline;

[0006] An air preheater, whose air inlet is connected to the main air supply fan, and whose flue gas outlet is connected to the heat medium inlet of the waste heat boiler; the heat medium outlet of the waste heat boiler is connected to the heat medium inlet of the high-temperature raw oil preheater, the heat medium outlet of the high-temperature raw oil preheater is connected to the heat medium inlet of the low-temperature raw oil preheater, the heat medium outlet of the low-temperature raw oil preheater is connected to the tube-side inlet of the drum dryer, the refrigerant inlet of the low-temperature raw oil preheater is connected to the raw oil tank, and the refrigerant outlet of the low-temperature raw oil preheater is connected to the refrigerant inlet of the high-temperature raw oil preheater;

[0007] The tube-side outlet of the drum dryer is connected to the smoke inlet of the main bag filter. The carbon black material in the main bag filter is filtered and then passed through the air conveying pipeline and sequentially through the reprocessing bag filter and the exhaust bag filter to be sent to the micron grinder. The material outlet of the micron grinder is connected to the powder tank through the main pulse bag filter. The powder tank sends the carbon black material to the wet granulator. The wet granulator is connected to the shell-side inlet of the drum dryer. The shell-side outlet of the drum dryer is connected to the finished product tank through an elevator and a screening machine.

[0008] As a further improvement of the technical solution of the present invention, the elevator includes a primary elevator and a secondary elevator, the screening machine includes a magnetic separator and an air separator, the material inlet of the primary elevator is connected to the shell side outlet of the drum dryer, the material outlet of the primary elevator is connected to the material inlet of the magnetic separator, the first material outlet of the magnetic separator is connected to the defective product tank, the second material outlet of the magnetic separator is connected to the material inlet of the secondary elevator, the material outlet of the secondary elevator is connected to the material inlet of the air separator, and the material outlet of the air separator is connected to the finished product tank.

[0009] As a further improvement of the technical solution of the present invention, the finished product tank includes a first finished product tank and a second finished product tank, the first finished product tank is connected to the first small packaging machine and the first large packaging machine respectively through the outlet pipeline, the second finished product tank is connected to the second small packaging machine and the second large packaging machine respectively through the outlet pipeline, and the tank body of the second finished product tank is connected to the reprocessing bag filter through a branch pipeline and a reprocessing fan.

[0010] As a further improvement to the technical solution of the present invention, the dust outlets of the first small packaging machine and the second small packaging machine are both connected to the reprocessing bag filter through a packaging dust suction fan.

[0011] As a further improvement of the technical solution of the present invention, the dust outlets of the primary elevator and the secondary elevator are connected to the reprocessing bag filter through the equipment dust suction fan.

[0012] As a further improvement of the technical solution of the present invention, a defective product tee is arranged between the material outlet of the primary elevator and the material inlet of the magnetic separator, the third pass of the defective product tee is connected to the defective product tank, and the material outlet of the defective product tank is connected to the reprocessing bag filter through a reprocessing fan.

[0013] As a further improvement of the technical solution of the present invention, the material outlet of the air separator is connected to the first finished product tank and the second finished product tank through a finished product tee, the second and third passes of the finished product tee are respectively connected to the first finished product tank and the second finished product tank through corresponding finished product screw conveyors, and the dust outlet of the finished product screw conveyor is connected to the reprocessing bag filter through the equipment dust suction fan.

[0014] As a further improvement of the technical solution of the present invention, the fine powder outlet of the air classifier is connected to the reprocessing bag filter through an air classifier fan; the exhaust gas outlet of the drum dryer is connected to the exhaust gas bag filter through an exhaust gas fan.

[0015] As a further improvement of the technical solution of the present invention, the throat section of the reactor has a throat oil nozzle, and the throat oil nozzle of the throat section is connected to the refrigerant outlet of the high-temperature crude oil preheater through a crude oil pipeline.

[0016] As a further improvement to the technical solution of the present invention, a purge steam pipe is connected to the combustion section and the throat section of the reactor.

[0017] The present invention provides a high-efficiency waste heat recovery and utilization carbon black production device, which has the following advantages compared with the prior art:

[0018] The present invention introduces 400°C flue gas from the crude oil preheater into a drum dryer as a heat source to dry the carbon black from the wet granulator, thereby reusing waste heat. Reusing waste heat reduces the amount of quenching water used, increases the proportion of combustible gases in the high-temperature flue gas (primarily CO / H2), and improves the calorific value of the exhaust gas. The present invention eliminates the need for a tail gas combustion furnace to provide a heat source for drying carbon black in traditional dryers, reducing equipment such as the tail gas combustion furnace, tail gas furnace air supply fan, tail gas furnace water seal, and tail gas furnace gas pipe, thereby achieving energy conservation and consumption reduction. By eliminating the tail gas combustion furnace in the present invention, the labor intensity of operators is reduced, eliminating the safety risks of tail gas furnace flameout and tail gas furnace explosion during the initial ignition stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic structural diagram of the carbon black production device with high-efficiency waste heat recovery and utilization according to the present invention.

[0022] Figure 2 Schematic diagram of the connection between the main bag filter, the reprocessing bag filter and the exhaust gas bag filter.

[0023] Figure 3 This is a schematic diagram of the connection between the reactor and the air preheater.

[0024] Figure 4 Schematic diagram of the connection between the main vein bag filter, powder tank and drum dryer.

[0025] Figure 5 This is a schematic diagram of the connection between the elevator and the finished product tank.

[0026] In the figure: 1-reaction furnace, 101-raw oil pipeline, 102-purge steam pipe, 103-crude oil filter, 104-throat oil pipe, 105-quenching water system, 106-additive pipe, 107-coke oven gas pipe, 108-cooling water return pipe, 109-cooling water inlet pipe, 2-air preheater, 201-main air supply fan, 3-waste heat boiler, 4-high temperature raw oil preheater, 5-low temperature raw oil preheater, 501-raw oil return pipeline, 6-drum dryer, 7-reprocessing bag filter, 8-waste gas bag filter, 9-main bag filter, 10-micron grinder, 11-main pulse bag filter, 12-wet process Granulator, 13-Powder tank, 131-Heating device, 14-Primary elevator, 141-Magnetic separator, 142-Defective product tank, 143-Reprocessing fan, 144-Defective product tee, 145-Screw conveyor, 15-Secondary elevator, 151-Wind separator, 152-Equipment dust suction fan, 153-Finished product tee, 154-Finished product screw conveyor, 155-Wind separator, 161-First finished product tank, 162-Second finished product tank, 163-First small packaging machine, 164-First large packaging machine, 165-Second small packaging machine, 166-Second large packaging machine, 167-Branch pipeline, 168-Packaging dust suction fan. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] The specific embodiments of the present invention are described in detail below.

[0031] like Figures 1 to 5As shown, the present invention provides a carbon black production device with high efficiency waste heat recovery and utilization, comprising a reactor 1, an air preheater 2, a waste heat boiler 3, a main bag filter 9 and a wet granulator 12, and also comprising a low-temperature raw oil preheater 5 and a high-temperature raw oil preheater 4;

[0032] Reactor 1, comprising a combustion section, a throat section, a reaction section, and a retention section; the combustion section has an air inlet, a crude oil nozzle, and a coke oven gas inlet; the air inlet of the combustion section is connected to the air outlet of the air preheater 2; the retention section is connected to the flue gas inlet of the air preheater 2; the crude oil nozzle is connected to the refrigerant outlet of the high-temperature crude oil preheater 4 via a crude oil pipeline 101;

[0033] The air preheater 2 has its air inlet connected to the main air supply fan 201, and its flue gas outlet is connected to the heat medium inlet of the waste heat boiler 3; the heat medium outlet of the waste heat boiler 3 is connected to the heat medium inlet of the high-temperature raw oil preheater 4, the heat medium outlet of the high-temperature raw oil preheater 4 is connected to the heat medium inlet of the low-temperature raw oil preheater 5, the heat medium outlet of the low-temperature raw oil preheater 5 is connected to the tube-side inlet of the drum dryer 6, the refrigerant inlet of the low-temperature raw oil preheater 5 is connected to the raw oil tank, and the refrigerant outlet of the low-temperature raw oil preheater 5 is connected to the refrigerant inlet of the high-temperature raw oil preheater 4;

[0034] The tube-side outlet of the drum dryer 6 is connected to the smoke inlet of the main bag filter 9. The carbon black material in the main bag filter 9 is filtered and then passed through the air conveying pipeline 901 and sequentially passed through the reprocessing bag filter 7 and the waste gas bag filter 8 to be sent to the micron grinder 10. The material outlet of the micron grinder 10 is connected to the powder tank 13 through the main pulse bag filter 11. The powder tank 13 sends the carbon black material into the wet granulator 12. The wet granulator 12 is connected to the shell-side inlet of the drum dryer 6. The shell-side outlet of the drum dryer 6 is connected to the finished product tank through an elevator and a screening machine.

[0035] like Figure 3As shown, the coke oven gas enters the combustion section of the reactor 1 from the coke oven gas pipe 107, and the raw oil passes through the low-temperature raw oil preheater 5 and the high-temperature raw oil preheater 4 in turn after the waste heat, and is sprayed into the combustion section of the reactor 1; the main air supply fan 201 transports the air to the air preheater 2, and the preheated air enters the combustion section of the reactor 1; the raw oil and coke oven gas passing through the combustion section and the throat section of the reactor 1 are fully burned, and the reaction is completed instantaneously in the reaction section. The obtained carbon black flue gas enters the flue gas channel of the air preheater 2 after passing through the retention section, and preheats the air in the air preheater 2; the high-temperature carbon black flue gas enters the waste heat boiler 3, and after heat exchange, enters the drum dryer 6 to dry the materials in the drum dryer 6. The material is heated and dried, and finally enters the main bag filter 9. After passing through the jet air flow of the back-blowing machine 904, the cone below the main bag filter 9 collects the carbon black material in the carbon black flue gas. The air delivery pipeline 901 transports the carbon black material in the main bag filter 9 together with the carbon black material collected by the reprocessing bag filter 7 and the waste gas bag filter 8 to the micron grinder 10. The micron grinder 10 crushes the carbon black material particles, and the crushed carbon black material is sent to the main vein bag filter 11. The main vein bag filter 11 collects the carbon black powder and sends it to the powder tank 13. The carbon black powder in the powder tank 13 is granulated inside the wet granulator 12 and then exchanges heat with the carbon black flue gas in the drum dryer 6. After drying, the carbon black particles are connected to the finished product tank through the elevator and the screening machine.

[0036] Furthermore, the exhaust gas outlet of the drum dryer 6 is connected to the exhaust gas bag filter 8 through the exhaust gas blower 601. In this embodiment, the material heating and drying method in the drum dryer 6 is indirect drying, and the carbon black drying only produces water vapor and a small amount of carbon black dust gas. When the exhaust gas from the drum dryer 6 enters the exhaust gas bag filter 8 through the exhaust gas blower 601, the exhaust gas from the exhaust gas bag filter 8 is free of NOX and is entirely water vapor. It does not require desulfurization or denitrification treatment to meet emission standards. The exhaust gas treatment cost is 0.0001 yuan / Nm 3 The annual cost savings is RMB 94,500.

[0037] Specifically, the drum dryer 6 can be a jacketed or finned dryer, and can be used to dry the carbon black produced by wet granulation by an indirect drying method.

[0038] In the traditional reaction process, after the carbon black flue gas is generated, the carbon black flue gas needs to be cooled by quenching water and then passed through the air preheater and oil preheater for heat exchange and cooling. However, in this embodiment, the residual heat of the carbon black flue gas is used to dry the carbon black particles produced by wet granulation, and secondary quenching water is no longer used to cool the carbon black flue gas. Taking the 60,000 tons / year N330 production process as an example, 5500 kg / h of water is saved, and 44,000 tons of water resources are saved annually; 8600 Nm 3 / h, based on an annual output of 8,000 hours, the annual exhaust gas savings is 68.8 million Nm 3The exhaust calorific value is 700Kcal / Nm 3 , annual heat recovery is 48160Mcal.

[0039] like Figure 2 As shown, the main bag filter 9 enters the cone below the main bag filter 9 through the air inlet, the filter bag is separated, and the carbon black is settled and collected; when collecting the tail gas, the tail gas pressure fan 902 sends the tail gas into the tail gas water seal 903, which is used for tail gas or sent to the outside as fuel (the tail gas combustion furnace is cancelled). The cost price of the tail gas is 0.06 yuan / Nm 3 The annual additional exhaust gas revenue is 4.13 million yuan.

[0040] like Figure 3 As shown, a raw oil filter 103 is connected in series to the raw oil pipeline 101 of this embodiment to filter impurities in the raw oil and improve the quality of the carbon black product.

[0041] Furthermore, the throat section of the reactor 1 has a throat oil nozzle, which is connected to the refrigerant outlet of the high-temperature crude oil preheater 4 via a crude oil pipeline 101. Specifically, in this embodiment, a throat oil pipe 104 is connected in parallel to the crude oil pipeline 101. This pipe 104 transports crude oil to the throat section of the reactor 1, increasing the fill level of the crude oil in the throat section of the reactor 1 and ensuring a full and complete reaction of the crude oil. Preferably, an additive pipe 106 is connected in parallel to the throat oil pipe 104 to facilitate the addition of other materials to the additive pipe 106 according to actual conditions, thereby adjusting the product type.

[0042] In order to facilitate the shutdown or production stoppage of the reactor 1 according to actual conditions, a quenching water system 105 is provided in the reaction section and the dwelling section of the reactor 1 in this embodiment. The quenching water system 105 can reduce the temperature of the reactor 1 .

[0043] Furthermore, in order to reduce the temperature of the oil gun inside the combustion section and the throat section of the reactor 1, this embodiment provides a cooling water inlet pipe 109 and a cooling water return pipe 108 in the combustion section and the throat section of the reactor 1.

[0044] In this embodiment, a purge steam pipe 102 is connected to the combustion section and throat section of the reactor 1. When the reactor 1 is shut down or stopped according to actual conditions, the purge steam pipe 102 is connected to the interior of the reactor 1 and cleans the combustion section and throat section of the reactor 1 with high-temperature steam.

[0045] Furthermore, the refrigerant chamber (oil chamber) within the low-temperature feedstock oil preheater 5, the feedstock oil pipeline 101 at the refrigerant outlet of the high-temperature feedstock oil preheater 4, and the throat oil pipeline 104 are each connected to a feedstock oil return pipe 501, which in turn is connected to a feedstock oil tank. In this embodiment, the feedstock oil delivery rate to each region can be adjusted based on actual conditions, and the feedstock oil from each region can be returned to the feedstock oil tank via the feedstock oil return pipe 501.

[0046] In an example provided by the present invention, the elevator includes a primary elevator 14 and a secondary elevator 15, and the screening machine includes a magnetic separator 141 and an air separator 151. The material inlet of the primary elevator 14 is connected to the shell outlet of the drum dryer 6, and the material outlet of the primary elevator 14 is connected to the material inlet of the magnetic separator 141. The first material outlet of the magnetic separator 141 is connected to the defective product tank 142, and the second material outlet of the magnetic separator 141 is connected to the material inlet of the secondary elevator 15. The material outlet of the secondary elevator 15 is connected to the material inlet of the air separator 151, and the material outlet of the air separator 151 is connected to the finished product tank.

[0047] After heat exchange with the carbon black flue gas in the drum dryer 6, the dried carbon black particles enter the primary elevator 14 from the material inlet. After the material in the primary elevator 14 is magnetically separated by the magnetic separator 141, the defective carbon black is transported to the defective product tank 142 through the first material outlet. The magnetically separated carbon black particles are further transported to the secondary elevator 15. After the material in the secondary elevator 15 is air-separated by the air separator 151, the finished carbon black product is transported to the finished product tank.

[0048] like Figure 5 As shown, the dust outlets of the primary elevator 14 and the secondary elevator 15 are connected to the reprocessing bag filter 7 through the equipment dust collection fan 152; the fine powder outlet of the air separator 151 is connected to the reprocessing bag filter 7 through the air separation fan 155. The equipment dust collection fan 152 and the air separation fan 155 respectively recover the carbon black dust to the reprocessing bag filter 7 for recycling.

[0049] like Figure 5As shown, the finished product tanks include a first finished product tank 161 and a second finished product tank 162. The first finished product tank 161 is connected to a first small packaging machine 163 and a first large packaging machine 164 via outlet pipelines, respectively. The second finished product tank 162 is connected to a second small packaging machine 165 and a second large packaging machine 166 via outlet pipelines, respectively. The tank body of the second finished product tank 162 is connected to the reprocessing bag filter 7 via a branch line 167 and a reprocessing fan 143. When the output of qualified carbon black finished products is high, an elevator transports the carbon black finished products in batches to the first small packaging machine 163, the first large packaging machine 164, the second small packaging machine 165, and the second large packaging machine 166 to package the carbon black products. When the qualified carbon black finished products transported by the elevator have a low yield, the second finished product tank 162 in this embodiment serves as a temporary defective tank. The carbon black material in the tank body of the second finished product tank 162 is transported again to the reprocessing bag filter 7 via a branch line 167 and a reprocessing fan 143.

[0050] Carbon black dust is easily generated during the small packaging process. Preferably, the dust outlets of the first small packaging machine 163 and the second small packaging machine 165 are both connected to the reprocessing bag filter 7 through the packaging dust suction fan 168. The packaging dust suction fan 168 collects the carbon black dust generated during the small packaging process and then transports it to the processing bag filter 7 again.

[0051] Preferably, a defective product tee 144 is provided between the material outlet of the primary elevator 14 and the material inlet of the magnetic separator 141. The third leg of the defective product tee 144 is connected to the defective product tank 142, and the material outlet of the defective product tank 142 is connected to the reprocessing bag filter 7 via a reprocessing fan 143. When the carbon black material inside the primary elevator 14 is defective, the carbon black material in the primary elevator 14 can be directly transported to the defective product tank 142 through the defective product tee 144 without being magnetically separated by the magnetic separator 141.

[0052] like Figure 5 As shown, in this embodiment, the carbon black material of the magnetic separator 141 is transported to the secondary elevator 15 through the screw conveyor 145.

[0053] This embodiment also provides a connection method between the air selector 151 and the finished product tank, specifically: the material outlet of the air selector 151 is connected to the first finished product tank 161 and the second finished product tank 162 through the finished product tee 153, the second and third passes of the finished product tee 153 are respectively connected to the first finished product tank 161 and the second finished product tank 162 through corresponding finished product screw conveyors 154, and the dust outlet of the finished product screw conveyor 154 is connected to the reprocessing bag filter 7 through the equipment dust suction fan 152.

[0054] like Figure 4As shown, in order to prevent the carbon black powder in the powder tank 13 from being too cold and adhering to the inner wall of the powder tank 13, a heating device 131 is provided on the tank body of the powder tank 13. The heating device can be a steam pipe.

[0055] The above description is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be included in the scope of protection of the claims.

Claims

1. A method for using a carbon black production device with high efficiency waste heat recovery and utilization, the carbon black production device comprising a reactor (1), an air preheater (2), a waste heat boiler (3), a main bag filter (9) and a wet granulator (12), characterized in that: It also includes a low-temperature raw oil preheater (5) and a high-temperature raw oil preheater (4); A reactor (1) comprising a combustion section, a throat section, a reaction section, and a retention section; the combustion section is provided with an air inlet, a raw oil nozzle, and a coke oven gas inlet; the air inlet of the combustion section is connected to the air outlet of an air preheater (2); the retention section is connected to the flue gas inlet of the air preheater (2); the raw oil nozzle is connected to the refrigerant outlet of a high-temperature raw oil preheater (4) via a raw oil pipeline (101); An air preheater (2), whose air inlet is connected to the main air supply fan (201), and whose flue gas outlet is connected to the heat medium inlet of the waste heat boiler (3); the heat medium outlet of the waste heat boiler (3) is connected to the heat medium inlet of the high-temperature raw oil preheater (4), the heat medium outlet of the high-temperature raw oil preheater (4) is connected to the heat medium inlet of the low-temperature raw oil preheater (5), the heat medium outlet of the low-temperature raw oil preheater (5) is connected to the pipe side inlet of the drum dryer (6), the refrigerant inlet of the low-temperature raw oil preheater (5) is connected to the raw oil tank, and the refrigerant outlet of the low-temperature raw oil preheater (5) is connected to the refrigerant inlet of the high-temperature raw oil preheater (4); The tube-side outlet of the drum dryer (6) is connected to the smoke inlet of the main bag filter (9), and the carbon black material in the main bag filter (9) is filtered and then sent to the micron grinder (10) through the air delivery pipeline (901) and the reprocessing bag filter (7) and the waste gas bag filter (8) in sequence. The material outlet of the micron grinder (10) is connected to the powder tank (13) through the main pulse bag filter (11), and the powder tank (13) sends the carbon black material to the wet granulator (12). The wet granulator (12) is connected to the shell-side inlet of the drum dryer (6), and the shell-side outlet of the drum dryer (6) is connected to the finished product tank through the elevator and the screening machine; The method of use comprises the following steps: coke oven gas enters the combustion section of the reactor (1) from the coke oven gas pipe (107); the raw oil is preheated in turn by the low-temperature raw oil preheater (5) and the high-temperature raw oil preheater (4) and then sprayed into the combustion section of the reactor (1); the main air supply fan (201) transports air to the air preheater (2), and the preheated air enters the combustion section of the reactor (1); the raw oil and coke oven gas in the combustion section and the throat section of the reactor (1) are fully burned and reacted instantaneously in the reaction section, and the obtained carbon black flue gas enters the flue gas channel of the air preheater (2) after passing through the retention section, thereby preheating the air in the air preheater (2); the high-temperature carbon black flue gas enters the waste heat boiler (3), and after heat exchange, enters the drum dryer (6), thereby preheating the air in the drum dryer (6). The material is heated and dried, and finally enters the main bag filter (9). After passing through the jet air flow of the back-blowing machine (904), the cone below the main bag filter (9) collects the carbon black material in the carbon black flue gas. The air delivery pipeline (901) transports the carbon black material in the main bag filter (9) together with the carbon black material collected by the reprocessing bag filter (7) and the waste gas bag filter (8) to the micron grinder (10). The micron grinder (10) crushes the carbon black material particles. The crushed carbon black material is sent to the main bag filter (11). The main bag filter (11) collects the carbon black powder and sends it to the powder tank (13). The carbon black powder in the powder tank (13) is granulated inside the wet granulator (12) and then exchanges heat with the carbon black flue gas in the drum dryer (6). After the carbon black particles are dried, they are connected to the finished product tank through the elevator and the screening machine.

2. The method for using a high-efficiency waste heat recovery and utilization carbon black production device according to claim 1, characterized in that: The elevator comprises a primary elevator (14) and a secondary elevator (15); the screening machine comprises a magnetic separator (141) and an air separator (151); the material inlet of the primary elevator (14) is connected to the shell outlet of the drum dryer (6); the material outlet of the primary elevator (14) is connected to the material inlet of the magnetic separator (141); the first material outlet of the magnetic separator (141) is connected to the defective product tank (142); the second material outlet of the magnetic separator (141) is connected to the material inlet of the secondary elevator (15); the material outlet of the secondary elevator (15) is connected to the material inlet of the air separator (151); and the material outlet of the air separator (151) is connected to the finished product tank.

3. The method for using a high-efficiency waste heat recovery and utilization carbon black production device according to claim 2, characterized in that: The finished product tank comprises a first finished product tank (161) and a second finished product tank (162), wherein the first finished product tank (161) is connected to a first small packaging machine (163) and a first large packaging machine (164) respectively through an outlet pipeline, and the second finished product tank (162) is connected to a second small packaging machine (165) and a second large packaging machine (166) respectively through an outlet pipeline, and the tank body of the second finished product tank (162) is connected to a reprocessing bag filter (7) through a branch pipeline (167) and a reprocessing fan (143).

4. The method for using a high-efficiency waste heat recovery and utilization carbon black production device according to claim 3 is characterized in that: The dust outlets of the first small packaging machine (163) and the second small packaging machine (165) are both connected to the reprocessing bag filter (7) via a packaging dust suction fan (168).

5. The method for using a high-efficiency waste heat recovery and utilization carbon black production device according to claim 4, characterized in that: The dust outlets of the primary elevator (14) and the secondary elevator (15) are connected to the reprocessing bag filter (7) via the equipment dust suction fan (152).

6. The method for using the high-efficiency waste heat recovery and utilization carbon black production device according to claim 5, characterized in that: A defective product tee (144) is provided between the material outlet of the primary elevator (14) and the material inlet of the magnetic separator (141), the third port of the defective product tee (144) is connected to the defective product tank (142), and the material outlet of the defective product tank (142) is connected to the reprocessing bag filter (7) via a reprocessing fan (143).

7. The method for using the high-efficiency waste heat recovery and utilization carbon black production device according to claim 6 is characterized in that: The material outlet of the air separator (151) is connected to the first finished product tank (161) and the second finished product tank (162) via a finished product tee (153); the second and third passes of the finished product tee (153) are connected to the first finished product tank (161) and the second finished product tank (162) respectively via corresponding finished product screw conveyors (154); the dust outlet of the finished product screw conveyor (154) is connected to the reprocessing bag filter (7) via the equipment dust suction fan (152).

8. The method for using the high-efficiency waste heat recovery and utilization carbon black production device according to claim 7, characterized in that: The fine powder outlet of the air separator (151) is connected to the reprocessing bag filter (7) via the air separation fan (155); the exhaust gas outlet of the drum dryer (6) is connected to the exhaust gas bag filter (8) via the exhaust gas fan (601).

9. The method for using the high-efficiency waste heat recovery and utilization carbon black production device according to claim 8, characterized in that: The throat section of the reactor (1) has a throat oil nozzle, and the throat oil nozzle of the throat section is connected to the refrigerant outlet of the high-temperature raw oil preheater (4) through a raw oil pipeline (101).

10. The method for using the high-efficiency waste heat recovery and utilization carbon black production device according to claim 9, characterized in that: The combustion section and the throat section of the reactor (1) are connected with a purge steam pipe (102).

Images