Carbon black production device capable of efficiently recycling waste heat

Abstract

The invention relates to the field of carbon black production lines, in particular to an efficient waste heat recycling carbon black production device which comprises a reaction furnace, an air preheater, a waste heat boiler, a main bag filter, a wet granulator, a low-temperature raw oil preheater and a high-temperature raw oil preheater. According to the invention, the flue gas with the temperature of 400 DEG C in the raw oil preheater is introduced into the roller dryer to be used as a heat source for drying the carbon black from the wet-process granulator, so that the waste heat is recycled. Waste heat is reused, the use amount of quenching water is reduced, the proportion of combustible gas in high-temperature flue gas is increased, and the tail gas heat value is increased. According to the invention, a traditional dryer needs a tail gas combustion furnace to provide a heat source to dry carbon black is reduced, equipment such as the tail gas combustion furnace, a tail gas furnace air supply fan, a tail gas furnace water seal and a gas pipe used by the tail gas furnace is reduced, and the purposes of energy conservation and consumption reduction are achieved. After a tail gas combustion furnace is omitted, the labor intensity of operators is reduced, and the safety risk of tail gas furnace explosion in the initial ignition stage due to flameout of the tail gas furnace is eradicated.

Description

Technical Field

[0001] The 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 (limited by 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 realized by the following technical scheme: a highly efficient waste heat recovery and utilization carbon black production device, comprising a reaction furnace, 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; A reactor, 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 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 through a raw oil pipeline; 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 crude oil preheater, the heat medium outlet of the high-temperature crude oil preheater is connected to the heat medium inlet of the low-temperature crude oil preheater, the heat medium outlet of the low-temperature crude oil preheater is connected to the tube inlet of the drum dryer, the refrigerant inlet of the low-temperature crude oil preheater is connected to the crude oil tank, and the refrigerant outlet of the low-temperature crude oil preheater is connected to the refrigerant inlet of the high-temperature crude oil preheater; 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 sent to the micron grinder through the air delivery pipeline and the reprocessing bag filter and the exhaust gas bag filter in sequence. 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 the elevator and the screening machine.

[0005] 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 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.

[0006] 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 respectively connected to a first small packaging machine and a first large packaging machine through an export pipeline, the second finished product tank is respectively connected to a second small packaging machine and a second large packaging machine through an export pipeline, and the tank body of the second finished product tank is connected to a reprocessing bag filter through a branch pipeline and a reprocessing fan.

[0007] As a further improvement of 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.

[0008] 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.

[0009] 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.

[0010] As a further improvement of the technical solution of the present invention, the material outlet of the air classifier 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.

[0011] 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.

[0012] 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.

[0013] As a further improvement of the technical solution of the present invention, a purge steam pipe is connected to the combustion section and the throat section of the reactor.

[0014] The invention provides a highly efficient waste heat recovery and utilization carbon black production device, which has the following advantages compared with the prior art: The present invention introduces the 400℃ flue gas from the raw oil preheater into the drum dryer as a heat source to dry the carbon black from the wet granulator, so as to achieve the reuse of waste heat. The waste heat is reused to reduce the amount of quenching water, and the proportion of combustible gas in the high-temperature flue gas is increased (mainly CO / H 2 ), the calorific value of the tail gas is improved. The present invention reduces the need for the tail gas combustion furnace to provide a heat source for drying carbon black in the traditional dryer, and reduces the equipment: tail gas combustion furnace, tail gas furnace air supply fan, tail gas furnace water seal, tail gas furnace gas pipe, etc., to achieve the purpose of energy saving 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 risk of tail gas furnace flameout and tail gas furnace explosion in the initial ignition period is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the carbon black production device with high efficiency waste heat recovery and utilization according to the present invention.

[0018] Figure 2 Schematic diagram of the connection between the main bag filter, the reprocessing bag filter and the exhaust gas bag filter.

[0019] Figure 3 This is a schematic diagram of the connection between the reactor and the air preheater.

[0020] Figure 4 This is a schematic diagram of the connection between the main vein bag filter, powder tank and drum dryer.

[0021] Figure 5 This is a schematic diagram of the connection between the elevator and the finished product tank.

[0022] 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 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 crusher, 11-main vein bag filter, 12-wet process Granulator, 13-powder tank, 131-heating device, 14-primary elevator, 141-magnetic separator, 142-defective tank, 143-reprocessing fan, 144-defective tee, 145-screw conveyor, 15-secondary elevator, 151-pneumatic separator, 152-equipment dust suction fan, 153-finished product tee, 154-finished product screw conveyor, 155-pneumatic 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

[0023] 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 the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] 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 of the embodiments.

[0026] The specific embodiments of the present invention are described in detail below.

[0027] 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 reaction furnace 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; 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 the air preheater 2, the retention section is connected to the flue gas inlet of the air preheater 2, and the raw oil nozzle is connected to the refrigerant outlet of the high-temperature raw oil preheater 4 through a raw oil pipeline 101; The air preheater 2 has an air inlet connected to the main air supply fan 201, and a flue gas outlet 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 crude oil preheater 4, the heat medium outlet of the high-temperature crude oil preheater 4 is connected to the heat medium inlet of the low-temperature crude oil preheater 5, the heat medium outlet of the low-temperature crude oil preheater 5 is connected to the tube side inlet of the drum dryer 6, the refrigerant inlet of the low-temperature crude oil preheater 5 is connected to the crude oil tank, and the refrigerant outlet of the low-temperature crude oil preheater 5 is connected to the refrigerant inlet of the high-temperature crude oil preheater 4; 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 sent to the micron grinder 10 through the air delivery pipeline 901 and successively through the reprocessing bag filter 7 and the exhaust bag filter 8. The material outlet of the micron grinder 10 is connected to the powder tank 13 through the main vein bag filter 11. 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. The shell-side outlet of the drum dryer 6 is connected to the finished product tank through the elevator and the screening machine.

[0028] 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, and is 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 from 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 the air in the air preheater 2 is preheated; 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 the jet airflow of the back-blowing machine 904, the vertebral body 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 in 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.

[0029] Furthermore, the exhaust gas outlet of the drum dryer 6 is connected to the exhaust gas bag filter 8 through the exhaust gas fan 601. In this embodiment, the material in the drum dryer 6 is heated and dried by an indirect dryer, and the carbon black drying only produces water vapor and a small amount of carbon black dust gas. When the exhaust gas of the drum dryer 6 enters the exhaust gas bag filter 8 through the exhaust gas fan 601, the exhaust gas of the exhaust gas bag filter 8 has no NOX and is all water vapor. It does not need desulfurization and denitrification treatment to meet the emission standards. The exhaust gas treatment cost is 0.0001 yuan / Nm 3 The annual cost savings is RMB 94,500.

[0030] 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.

[0031] 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 carbon black flue gas waste heat is used to dry the wet granulated carbon black particles, and the 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, 5500Kg / h of water is saved, 44,000 tons of water resources are saved annually, and 8600 Nm of tail gas is saved. 3 / h, based on an annual output of 8,000 hours, the annual exhaust gas savings is 68.8 million Nm 3, exhaust gas calorific value is 700Kcal / Nm 3 , annual heat recovery is 48160Mcal.

[0032] 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 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), according to the tail gas cost price of 0.06 yuan / Nm 3 The annual additional exhaust gas revenue is 4.13 million yuan.

[0033] like Figure 3 As shown, a crude oil filter 103 is connected in series to the crude oil pipeline 101 of this embodiment to filter impurities in the crude oil and improve the quality of the carbon black product.

[0034] Further, 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 crude oil preheater 4 through the crude oil pipeline 101. Specifically, the crude oil pipeline 101 in this embodiment is connected in parallel with a throat oil pipe 104, and the throat oil pipe 104 transports the crude oil to the throat section of the reactor 1, improves the fullness of the crude oil in the throat section of the reactor 1, and improves the full and complete reaction degree of the crude oil. Preferably, the throat oil pipe 104 is connected in parallel with an additive pipe 106, which is convenient for adding other materials in the additive pipe 106 according to actual conditions, thereby adjusting the product type.

[0035] In order to facilitate the shutdown or production stop of the reactor 1 according to actual conditions, a quenching water system 105 is provided in the reaction section and the stay section of the reactor 1 in this embodiment. The quenching water system 105 can reduce the temperature of the reactor 1.

[0036] Furthermore, in order to reduce the temperature of the oil gun inside the combustion section and the throat section of the reactor 1 , a cooling water inlet pipe 109 and a cooling water return pipe 108 are provided in the combustion section and the throat section of the reactor 1 in this embodiment.

[0037] In this embodiment, the combustion section and throat section of the reactor 1 are connected with a purge steam pipe 102. When the reactor 1 is stopped or shut down according to actual conditions, the purge steam pipe 102 is connected to the inside of the reactor 1, and the combustion section and throat section of the reactor 1 are cleaned by high-temperature steam.

[0038] Furthermore, the refrigerant cavity (oil cavity) inside the low-temperature crude oil preheater 5, the crude oil pipeline 101 at the refrigerant outlet of the high-temperature crude oil preheater 4, and the throat oil pipe 104 are respectively connected to the crude oil return pipe 501, and the crude oil return pipe 501 is connected to the crude oil tank. In this embodiment, the delivery amount of crude oil in each area can be adjusted according to actual conditions, and the crude oil in each area can be returned to the crude oil tank through the crude oil return pipe 501.

[0039] In an example provided by the present invention, the elevator includes a primary elevator 14 and a secondary elevator 15, 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, 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.

[0040] 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 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.

[0041] 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 suction 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 suction fan 152 and the air separation fan 155 respectively recycle the carbon black dust to the reprocessing bag filter 7 for recycling.

[0042] like Figure 5As shown, the finished product tank includes a first finished product tank 161 and a second finished product tank 162, the first finished product tank 161 is connected to the first small packaging machine 163 and the first large packaging machine 164 through the outlet pipeline, the second finished product tank 162 is connected to the second small packaging machine 165 and the second large packaging machine 166 through the outlet pipeline, and the tank body of the second finished product tank 162 is connected to the reprocessing bag filter 7 through the branch pipeline 167 and the reprocessing fan 143. When the output of qualified carbon black finished products is large, the 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 achieve the packaging of carbon black products. When the qualified rate of the carbon black finished products transported by the elevator is low, the second finished product tank 162 in this embodiment is used as a temporary defective tank, and the carbon black material in the tank body of the second finished product tank 162 is transported to the reprocessing bag filter 7 again through the branch pipeline 167 and the reprocessing fan 143.

[0043] Carbon black dust is prone to appear during the small packaging process. Preferably, the dust outlets of the first small packaging machine 163 and the second small packaging machine 165 are 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 in the small packaging process and then transports it to the processing bag filter 7 again.

[0044] 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 pass 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 through the reprocessing fan 143. When the carbon black material inside the primary elevator 14 is a defective product, 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 magnetic separation by the magnetic separator 141.

[0045] 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.

[0046] 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.

[0047] like Figure 4As shown, in order to prevent the carbon black powder in the powder tank 13 from being too low in temperature 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.

[0048] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A highly efficient waste heat recovery and utilization carbon black production device, comprising a reaction furnace (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 crude oil preheater (5) and a high-temperature crude oil preheater (4); A reaction furnace (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), and 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 a main air supply fan (201), and whose flue gas outlet is connected to a heat medium inlet of a waste heat boiler (3); the heat medium outlet of the waste heat boiler (3) is connected to a heat medium inlet of a high-temperature crude oil preheater (4), the heat medium outlet of the high-temperature crude oil preheater (4) is connected to a heat medium inlet of a low-temperature crude oil preheater (5), the heat medium outlet of the low-temperature crude oil preheater (5) is connected to a tube side inlet of a drum dryer (6), the refrigerant inlet of the low-temperature crude oil preheater (5) is connected to a crude oil tank, and the refrigerant outlet of the low-temperature crude oil preheater (5) is connected to the refrigerant inlet of the high-temperature crude oil preheater (4); 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 sent to the micron grinder (10) through the air delivery pipeline (901) and successively through the reprocessing bag filter (7) and the waste gas bag filter (8). The material outlet of the micron grinder (10) is connected to the powder tank (13) through the main vein bag filter (11). 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). The shell-side outlet of the drum dryer (6) is connected to the finished product tank through the elevator and the screening machine.

2. The high-efficiency waste heat recovery and utilization carbon black production device according to claim 1 is 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 high-efficiency waste heat recovery and utilization carbon black production device according to claim 2 is characterized in that: The finished product tank comprises 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) respectively through an outlet pipeline; 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 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 high-efficiency waste heat recovery and carbon black production device according to claim 4 is 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 an equipment dust suction fan (152).

6. The high-efficiency waste heat recovery and utilization carbon black production device according to claim 5 is 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 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 selector (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 outlets of the finished product tee (153) are connected to the first finished product tank (161) and the second finished product tank (162) 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 an equipment dust suction fan (152).

8. The high-efficiency waste heat recovery and utilization carbon black production device according to claim 7 is characterized in that: The fine powder outlet of the air separator (151) is connected to the reprocessing bag filter (7) via the air separator fan (155); and 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 high-efficiency waste heat recovery and utilization carbon black production device according to claim 8 is characterized in that: The throat section of the reaction furnace (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 crude oil preheater (4) through a crude oil pipeline (101).

10. The high-efficiency waste heat recovery and carbon black production device according to claim 9 is characterized in that: A purge steam pipe (102) is provided in connection with the combustion section and the throat section of the reaction furnace (1).

Images