Novel high-pigment special carbon black production process system

Abstract

The utility model discloses a novel high-pigment special carbon black production process system, relates to the technical field of carbon black production, and mainly aims to improve the thermal efficiency of a carbon black production system. According to the main technical scheme, the novel high-pigment special carbon black production process system comprises a carbon black reaction furnace, an air supply unit and a main air supply fan, the carbon black reaction furnace comprises a combustion section, a throat pipe section, a reaction section, a quenching section and a staying section; the staying section, a first space of the air preheater, a first space of the air supplement heat exchanger, a first space of the raw oil preheater and a tangential inlet of the cyclone separator are connected in sequence; the air conveying unit comprises an air conveying pipeline, and a material receiving opening of the air conveying pipeline is connected to a lower end outlet of the cyclone separator; the main air supply fan is connected to an inlet of the second space of the air preheater and an inlet of the second space of the air supplement heat exchanger, an outlet of the second space of the air preheater is connected to the combustion section, and an outlet of the second space of the air supplement heat exchanger is connected to the starting end of the air supply pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon black production, in particular to a novel high-pigment special carbon black production process system. Background Art

[0002] The main raw materials for the production of carbon black are coal tar, ethylene tar, anthracene oil, natural gas, blast furnace gas, etc.

[0003] The furnace process involves forming a closed turbulent flow system within a reactor using hydrocarbon feedstock (liquid, gaseous, or a mixture thereof) and an appropriate amount of air. A portion of the hydrocarbon feedstock is burned with air to generate high temperatures, causing the remaining portion to crack and produce carbon black. The carbon black suspended in the flue gas is then cooled, filtered, collected, and pelletized into finished carbon black. The gas furnace process uses gaseous hydrocarbons (natural gas or coalbed methane) as the primary feedstock, while the oil furnace process uses liquid hydrocarbons (aromatic heavy oils, including catalytic cracking clarified oil, ethylene tar, coal tar distillate, etc.).

[0004] The heat of carbon black products accounts for less than 50% of the total heat input of the reaction. Therefore, the configuration of carbon black energy-saving system is particularly important in the production process and is also the key to controlling the comprehensive energy consumption of carbon black products. Utility Model Content

[0005] In view of this, the utility model provides a novel high-pigment special carbon black production process system, the main purpose of which is to improve the thermal efficiency of the carbon black production system.

[0006] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0007] The utility model provides a novel high-pigment special carbon black production process system, which includes: a carbon black reaction furnace, an air delivery unit and a main air supply fan;

[0008] The carbon black reactor comprises a combustion section, a throat section, a reaction section, a quenching section and a dwell section, wherein the dwell section, the first space of the air preheater, the first space of the air supply heat exchanger, the first space of the feed oil preheater and the tangential inlet of the cyclone separator are connected in sequence;

[0009] The air delivery unit includes an air delivery pipe, and the material receiving port of the air delivery pipe is connected to the lower end outlet of the cyclone separator;

[0010] The main air supply fan is respectively connected to the inlet of the second space of the air preheater and the inlet of the second space of the make-up air heat exchanger, the outlet of the second space of the air preheater is connected to the combustion section, and the outlet of the second space of the make-up air heat exchanger is connected to the starting end of the air supply duct.

[0011] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0012] Optionally, it also includes a crude oil unit, which includes a first crude oil pipe and a second crude oil pipe, the first crude oil pipe is connected to the second space of the crude oil preheater and the combustion section in sequence, and the second crude oil pipe is connected to the combustion section.

[0013] Optionally, the first raw oil pipe is provided with a steam heating sleeve.

[0014] Optionally, it also includes a static mixer and an additive unit, wherein the static mixer is installed on the first raw oil pipe between the raw oil preheater and the combustion section, and the additive unit is connected to the inlet of the static mixer.

[0015] Optionally, a quenching water unit is also included, and the pipe between the first space of the crude oil preheater and the tangential inlet of the cyclone separator is a first pipe. The quenching water unit includes a first quenching water pipe and a second quenching water pipe. The first quenching water pipe is connected to the quenching section, and the second quenching water pipe is connected to the first pipe.

[0016] Optionally, the air conveying unit also includes a screw conveyor and a bag dust collector, the upper outlet of the cyclone separator is connected to the inlet of the bag dust collector, the lower outlet of the cyclone separator and the discharge port of the bag dust collector are respectively connected to the inlet of the screw conveyor, and the outlet of the screw conveyor is connected to the material receiving port of the air conveying pipe.

[0017] Optionally, the air delivery unit also includes an air delivery blower and a collection bag filter, the air delivery pipe, the air delivery blower and the collection bag filter are connected in sequence, the discharge port of the collection bag filter is connected to a first branch pipe and a second branch pipe, the first branch pipe is connected to a powder screw conveyor and a powder finished product tank in sequence, and the second branch pipe is connected to a granulator, a bucket elevator and a granular finished product tank in sequence.

[0018] Optionally, the air delivery unit further includes a micron grinder, the inlet of the micron grinder is connected to the air delivery pipe, and the outlet of the micron grinder is connected to the inlet of the air delivery blower.

[0019] By means of the above technical solution, the present invention has at least the following advantages:

[0020] The carbon black material produced by the carbon black reactor passes through the first space of the air preheater, the first space of the air supply heat exchanger, and the first space of the raw oil preheater in sequence and enters the cyclone separator, and the heavy component material enters the air delivery pipe;

[0021] A stream of air provided by the main air supply fan enters the air preheater, first absorbs the heat of the carbon black material, and then enters the combustion section; another stream of air provided by the main air supply fan enters the air supply heat exchanger, first absorbs the heat of the carbon black material, and then enters the air delivery duct to transport the carbon black powder in the air delivery duct, and at the same time further dries the carbon black powder to remove moisture from the carbon black powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a novel high-pigment specialty carbon black production process system provided in an embodiment of the present utility model.

[0023] The figure marks in the drawings of the specification include: carbon black reactor 1, air preheater 2, make-up air heat exchanger 3, raw oil preheater 4, cyclone separator 5, air delivery pipe 6, main supply fan 7, first raw oil pipe 8, second raw oil pipe 9, static mixer 10, additive tank 11, plunger pump 12, flow meter 13, first quenching water pipe 14, second quenching water pipe 15, screw conveyor 16, bag dust collector 17, exhaust fan 18, air delivery fan 19, collection bag filter 20, powder screw conveyor 21, powder finished product tank 22, granulator 23, bucket elevator 24, pellet finished product tank 25, carbon black packaging machine 26, micron crusher 27. DETAILED DESCRIPTION

[0024] To further illustrate the technical means and effects employed by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed description of the specific implementation methods, structures, features, and effects of this utility model application. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 As shown, an embodiment of the present invention provides a novel high-pigment specialty carbon black production process system, which includes: a carbon black reaction furnace 1, an air delivery unit and a main air supply fan 7;

[0027] The carbon black reactor 1 includes a combustion section, a throat section, a reaction section, a quenching section and a retention section, wherein the retention section, the first space of the air preheater 2, the first space of the air supply heat exchanger 3, the first space of the feed oil preheater 4, and the tangential inlet of the cyclone separator 5 are connected in sequence;

[0028] The air delivery unit includes an air delivery pipe 6, and the material receiving port of the air delivery pipe 6 is connected to the lower end outlet of the cyclone separator 5;

[0029] The main air supply fan 7 is respectively connected to the inlet of the second space of the air preheater 2 and the inlet of the second space of the make-up air heat exchanger 3, the outlet of the second space of the air preheater 2 is connected to the combustion section, and the outlet of the second space of the make-up air heat exchanger 3 is connected to the starting end of the air supply duct 6.

[0030] A new high-pigment specialty carbon black production process system works as follows:

[0031] The carbon black material produced by the carbon black reactor 1 passes through the first space of the air preheater 2, the first space of the air supply heat exchanger 3, and the first space of the raw oil preheater 4 in sequence and enters the cyclone separator 5, and the heavy component material enters the air delivery pipe 6;

[0032] A stream of air provided by the main air supply fan 7 enters the air preheater 2, first receives the heat of the carbon black material, and then enters the combustion section; another stream of air provided by the main air supply fan 7 enters the air supply heat exchanger 3, first receives the heat of the carbon black material, and then enters the air delivery pipe 6, transporting the carbon black powder in the air delivery pipe 6, and at the same time further drying the carbon black powder to remove moisture from the carbon black powder.

[0033] In the technical solution of the present invention, the carbon black reactor 1 of the system fully utilizes the heat of the carbon black material to preheat the reaction medium and the conveying medium while producing the carbon black material, thereby improving the thermal efficiency of the carbon black production system.

[0034] Specifically, the natural gas main is connected to the inlet of the combustion section.

[0035] Specifically, the air preheater 2 includes a first space and a second space separated from each other, the air supply heat exchanger 3 includes a first space and a second space separated from each other, and the crude oil preheater 4 includes a first space and a second space separated from each other.

[0036] In a specific embodiment, it also includes a raw oil unit, which includes a first raw oil pipe 8 and a second raw oil pipe 9. The first raw oil pipe 8 is connected to the second space of the raw oil preheater 4 and the combustion section in sequence, and the second raw oil pipe 9 is connected to the combustion section.

[0037] In this embodiment, specifically, the first raw oil pipe 8 and the second raw oil pipe 9 respectively supply raw oil to the combustion section, wherein the raw oil provided by the first raw oil pipe 8 receives heat from carbon black in the raw oil preheater 4, and then enters the combustion section, so that the first raw oil pipe 8 provides high-temperature raw oil to the combustion section, and the second raw oil pipe 9 provides room-temperature raw oil to the combustion section. The two parts of raw oil are mixed to adjust the temperature of the raw oil entering the combustion section.

[0038] In a specific embodiment, the first raw oil pipe 8 is provided with a steam heating sleeve.

[0039] In this embodiment, specifically, the first raw oil pipe 8 is provided with a steam heating sleeve for continuously compensating for the heat loss of the raw oil in the first raw oil pipe 8 .

[0040] In a specific embodiment, it also includes a static mixer 10 and an additive unit. The static mixer 10 is installed on the first raw oil pipe 8 between the raw oil preheater 4 and the combustion section, and the additive unit is connected to the inlet of the static mixer 10.

[0041] In this embodiment, specifically, the additive and the raw oil are mixed in the static mixer 10 and enter the combustion section through the first raw oil pipe 8. Because the raw oil in the first raw oil pipe 8 receives the heat of the carbon black in the raw oil preheater 4, the additive is mixed with the heated raw oil, which can keep the additive active.

[0042] Specifically, the additive unit includes an additive tank 11 , a plunger pump 12 , and a flow meter 13 which are connected in sequence.

[0043] In a specific embodiment, a quenching water unit is also included. The pipe between the first space of the crude oil preheater 4 and the tangential inlet of the cyclone separator 5 is a first pipe. The quenching water unit includes a first quenching water pipe 14 and a second quenching water pipe 15. The first quenching water pipe 14 is connected to the quenching section, and the second quenching water pipe 15 is connected to the first pipe.

[0044] In this embodiment, specifically, the first quenching water pipe 14 supplies cold water to the quenching section to avoid excessive cracking of the crude oil, and the second quenching water pipe 15 supplies water to the first pipeline to further reduce the temperature of the carbon black and avoid spontaneous combustion of the carbon black during the subsequent air delivery process.

[0045] In a specific embodiment, the air conveying unit also includes a screw conveyor 16 and a bag dust collector 17. The upper outlet of the cyclone separator 5 is connected to the inlet of the bag dust collector 17. The lower outlet of the cyclone separator 5 and the discharge port of the bag dust collector 17 are respectively connected to the inlet of the screw conveyor 16. The outlet of the screw conveyor 16 is connected to the receiving port of the air conveying pipe 6.

[0046] In this embodiment, specifically, the heavy components separated by the cyclone separator 5 enter the screw conveyor 16 through the lower end outlet; the light components separated by the cyclone separator 5 first enter the bag dust collector 17. In the bag dust collector 17, the compressed air is periodically pulsed to back-blow the filter bags, and the carbon black falls into the bag filter storage hopper of the bag dust collector 17 and finally enters the screw conveyor 16. The screw conveyor 16 transports the carbon black material to the air delivery pipe 6.

[0047] Specifically, the exhaust port of the bag filter 17 is connected to the inlet of the exhaust fan 18, and the outlet of the exhaust fan 18 is connected to the exhaust main pipe.

[0048] In a specific embodiment, the air delivery unit also includes an air delivery blower 19 and a collection bag filter 20. The air delivery pipe 6, the air delivery blower 19 and the collection bag filter 20 are connected in sequence. The discharge port of the collection bag filter 20 is connected to the first branch pipe and the second branch pipe. The first branch pipe is connected to the powder screw conveyor 21 and the powder finished product tank 22 in sequence. The second branch pipe is connected to the granulator 23, the bucket elevator 24 and the granular finished product tank 25 in sequence.

[0049] In this embodiment, the carbon black material in the air delivery pipe 6 is pressurized by the air delivery blower 19 and enters the collection bag filter 20. If the powdered carbon black needs to be packaged, the valve of the first branch pipe is opened and the valve of the second branch pipe is closed, and the powdered carbon black directly enters the powder finished product tank 22.

[0050] If it is necessary to package the pelletized carbon black, open the valve of the second branch pipe and close the valve of the first branch pipe. After the powdered carbon black is granulated in the granulator 23, it enters the pelletized product tank 25 through the bucket elevator 24.

[0051] Specifically, a carbon black packaging machine 26 is provided at the lower end of the powder finished product tank 22 and the granular finished product tank 25 respectively.

[0052] In a specific embodiment, the air supply unit further includes a micron grinder 27 , the inlet of the micron grinder 27 is connected to the air supply duct 6 , and the outlet of the micron grinder 27 is connected to the inlet of the air supply blower 19 .

[0053] In this embodiment, specifically, the carbon black material transported by the air delivery pipe 6 first enters the micron grinder 27 for crushing, so that the hard carbon or impurities are crushed, and then is transported to the collection bag filter 20 through the air delivery fan 19.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A new high-pigment specialty carbon black production process system, characterized in that: include: A carbon black reactor, comprising a combustion section, a throat section, a reaction section, a quenching section, and a dwelling section, wherein the dwelling section, a first space of an air preheater, a first space of a supplementary air heat exchanger, a first space of a feed oil preheater, and a tangential inlet of a cyclone separator are sequentially connected; An air delivery unit, the air delivery unit comprising an air delivery pipe, the material receiving port of the air delivery pipe being connected to the lower outlet of the cyclone separator; The main air supply fan is respectively connected to the inlet of the second space of the air preheater and the inlet of the second space of the make-up air heat exchanger, the outlet of the second space of the air preheater is connected to the combustion section, and the outlet of the second space of the make-up air heat exchanger is connected to the starting end of the air supply duct.

2. The novel high-pigment specialty carbon black production process system according to claim 1 is characterized in that: It also includes a raw oil unit, which includes a first raw oil pipe and a second raw oil pipe. The first raw oil pipe is connected to the second space of the raw oil preheater and the combustion section in sequence, and the second raw oil pipe is connected to the combustion section.

3. The novel high-pigment specialty carbon black production process system according to claim 2 is characterized in that: The first raw oil pipe is provided with a steam heating casing.

4. The novel high-pigment specialty carbon black production process system according to claim 2 is characterized in that: It also includes a static mixer and an additive unit. The static mixer is installed on the first raw oil pipe between the raw oil preheater and the combustion section, and the additive unit is connected to the inlet of the static mixer.

5. The novel high-pigment specialty carbon black production process system according to claim 2 is characterized in that: It also includes a quenching water unit, the pipe between the first space of the crude oil preheater and the tangential inlet of the cyclone separator is a first pipe, and the quenching water unit includes a first quenching water pipe and a second quenching water pipe, the first quenching water pipe is connected to the quenching section, and the second quenching water pipe is connected to the first pipe.

6. The novel high-pigment specialty carbon black production process system according to any one of claims 1 to 5, characterized in that: The air conveying unit also includes a screw conveyor and a bag dust collector. The upper outlet of the cyclone separator is connected to the inlet of the bag dust collector. The lower outlet of the cyclone separator and the discharge port of the bag dust collector are respectively connected to the inlet of the screw conveyor. The outlet of the screw conveyor is connected to the material receiving port of the air conveying pipe.

7. The novel high-pigment specialty carbon black production process system according to claim 6 is characterized in that: The air delivery unit also includes an air delivery blower and a collection bag filter. The air delivery pipeline, the air delivery blower and the collection bag filter are connected in sequence. The discharge port of the collection bag filter is connected to a first branch pipe and a second branch pipe. The first branch pipe is connected to a powder screw conveyor and a powder finished product tank in sequence. The second branch pipe is connected to a granulator, a bucket elevator and a granular finished product tank in sequence.

8. The novel high-pigment specialty carbon black production process system according to claim 7 is characterized in that: The air delivery unit further includes a micron grinder, the inlet of the micron grinder is connected to the air delivery pipe, and the outlet of the micron grinder is connected to the inlet of the air delivery blower.

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