[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN111484022B - White carbon black combustion furnace structure - Google Patents

White carbon black combustion furnace structure Download PDF

Info

Publication number
CN111484022B
CN111484022B CN201911340680.0A CN201911340680A CN111484022B CN 111484022 B CN111484022 B CN 111484022B CN 201911340680 A CN201911340680 A CN 201911340680A CN 111484022 B CN111484022 B CN 111484022B
Authority
CN
China
Prior art keywords
section
combustible gas
carbon black
white carbon
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911340680.0A
Other languages
Chinese (zh)
Other versions
CN111484022A (en
Inventor
陈华林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Jinggong New Material Technology Co ltd
Original Assignee
Zhejiang Jinggong New Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Jinggong New Material Technology Co ltd filed Critical Zhejiang Jinggong New Material Technology Co ltd
Priority to CN201911340680.0A priority Critical patent/CN111484022B/en
Publication of CN111484022A publication Critical patent/CN111484022A/en
Application granted granted Critical
Publication of CN111484022B publication Critical patent/CN111484022B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/66—Preheating the combustion air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Incineration Of Waste (AREA)

Abstract

The invention relates to the field of chemical equipment, and discloses a white carbon black combustion furnace structure which comprises a hydrolysis section, an aggregation section and a screening discharge section; the top of the hydrolysis section is provided with a main burner; a secondary raw material inlet and an air inlet are arranged on the side wall of the hydrolysis section; a secondary combustor spray gun and a furnace wall cleaning spray gun are arranged on the side wall of the gathering section; the bottom of the side wall of the gathering section is provided with a small-particle-size white carbon black discharge port; the bottom of the screening discharge section is provided with a discharge port and a screening hot air inlet; and a screening plate is arranged above the discharge port. The white carbon black combustion furnace structure can improve the grade of white carbon black products and reduce the content of metal impurities; the problem of temperature field fluctuation caused by ash deposition on the furnace wall is solved, and the probability of occurrence of blocky white carbon black in the product is reduced; the problem of frequent flameout of the burner in the production process is solved; reducing the specific gravity of the qualified white carbon black product in the bottom waste discharge port; the problem that chlorine and nitrogen oxides exceed standards in the reaction production process is solved, and the rear-end treatment cost is reduced.

Description

White carbon black combustion furnace structure
Technical Field
The invention relates to the field of chemical equipment, in particular to a white carbon black combustion furnace structure.
Background
The fumed silica has small particle size, large specific surface area and high product purity, is divided into hydrophilic products and hydrophobic products, is used as an important nano-scale inorganic chemical raw material, has excellent surface chemical property and good physiological inertia, plays roles of reinforcing and delustering in the fields of silicone rubber, adhesive, paint, coating and the like in wide application, belongs to the industry of rising sun and is an essential raw material in the high technical field and the national defense industry.
In the fumed silica production process, a combustion furnace always has the largest influence on the product quality and is one of the most critical devices, however, the existing combustion furnace and the structure and material pipeline thereof are not designed reasonably, the heat dissipation mode and the furnace temperature thereof are not easy to control, flame combustion is unstable, the product quality is unstable, the particle size distribution is not uniform, the quality is greatly reduced due to the phenomena of caking, coking and the like, and the follow-up section treatment is increased due to the increase of the yield of three wastes.
In summary, the existing fumed silica combustion furnace has the following disadvantages:
1. the temperature field of the furnace body is unbalanced, the pressure fluctuation is large, and the furnace body is difficult to automatically adjust according to the process.
2. The flame stability is poor, and the machine is easy to be tempered and shut down.
3. The combustion efficiency of the materials is too low, the reaction is incomplete, and the rear end of the system has raw material components.
4. White carbon black is easily attached to the furnace wall and is agglomerated to influence the product quality.
5. The chlorine and nitrogen oxides in the reactor exceed the standards, and the post-treatment cost is too high.
6. The furnace body is complex to manufacture and install.
7. The furnace body is seriously corroded.
Disclosure of Invention
The invention provides a white carbon black combustion furnace structure, which can improve the grade of white carbon black products and reduce the content of metal impurities; the problem of temperature field fluctuation caused by ash deposition on the furnace wall is solved, and the probability of occurrence of blocky white carbon black in the product is reduced; the problem of frequent flameout of the burner in the production process is solved; reducing the specific gravity of the qualified white carbon black product in the bottom waste discharge port; the problem that chlorine and nitrogen oxides exceed standards in the reaction production process is solved, and the rear-end treatment cost is reduced; can reduce the investment cost of raw materials and auxiliary materials.
The specific technical scheme of the invention is as follows: the utility model provides a white carbon black fires burning furnace structure, is including the hydrolysis section, gathering section and the screening ejection of compact section that connect gradually.
The top of the hydrolysis section is provided with a main burner; the side wall of the hydrolysis section is provided with a secondary raw material inlet and an air inlet which face the main burner to spray flame.
A plurality of secondary combustor spray guns and furnace wall cleaning spray guns are arranged on the side wall of the gathering section at different heights; each furnace wall cleaning spray gun is provided with a plurality of ash removal air nozzles which are tangential to the furnace wall and have different directions; the bottom of the side wall of the aggregation section is provided with a small-particle-size white carbon black discharge port.
The bottom of the screening discharge section is provided with a discharge hole and a screening hot air inlet; and a screening plate is arranged above the discharge port.
The white carbon black combustion furnace structure has the following characteristics:
1. a hydrolysis section: the invention designs the long open fire igniter at the hydrolysis section, can be designed to be automatically telescopic, and can avoid the main burner from extinguishing and prevent the backfire. The hydrolysis section is also provided with a secondary raw material inlet and an air inlet, and the secondary raw material inlet and the air inlet can form supplementary gas wrapped layer by layer on the periphery of the flame under the matching of the secondary raw material inlet and the air inlet and improve the reaction rate of the raw materials.
2. An aggregation section: according to the invention, the plurality of secondary burner spray guns and the plurality of furnace wall cleaning spray guns are arranged on the furnace body, and the furnace wall cleaning spray guns are used for cleaning the inner wall agglomeration phenomenon and reducing the large-particle white carbon black mixed in the product. The furnace wall cleaning spray gun is tangent to the inner wall of the furnace, and can effectively remove impurities. The post-combustor lance is used to supplement the gas (methane and/or hydrogen), improve combustion efficiency and reduce the production of by-products (chlorine, etc.). In addition, due to the design of a plurality of secondary burners on the furnace wall, the air pressure and the temperature in the furnace body can be flexibly adjusted.
3. Screening and discharging section: the furnace body bottom is equipped with the screening board and sieves the hot-air inlet, the white carbon black of different particle sizes for small-particle size product accessible small-particle size discharge gate is discharged, and the bold product drops and waits to discharge in the bottom, thereby improves product quality.
Preferably, the furnace body can be made of corrosion-resistant materials combined with carbon steel, the corrosion-resistant materials can be Hastelloy, monel alloy, inconel alloy and the like, the service life can be effectively prolonged, and the metal content in the product can be reduced.
Preferably, the hydrolysis section, the aggregation section and the screening discharge section are detachably connected; the gathering section is detachably connected by a plurality of sections of cylinders.
Compared with the integral forming structure of the traditional combustion furnace body, the invention adopts multi-section connection, is convenient for manufacturing and installation and greatly reduces the input cost of equipment.
Preferably, the air inlet and the secondary raw material inlet are positioned on the same side wall of the hydrolysis section, and the air inlet is positioned outside the secondary raw material inlet.
The air inlet of the hydrolysis section is positioned outside the secondary raw material inlet. Outside secondary combustible gas inlet pipe lateral wall was located to secondary combustible gas inlet pipe cover in cooperation main burner, so the design can make the gaseous parcel of replenishment outside flame, from outer to interior be air-combustible gas-air in proper order, and this special parcel structure can effectively promote the area of contact of combustible gas and air, promotes combustion efficiency by a wide margin, reduces the production of accessory substance. In the prior art, the air inlet position is designed relatively randomly, and the point is not concerned.
Preferably, the included angle between the air inlet and the secondary raw material inlet and the vertical direction is 30-50 degrees.
Preferably, the air inlet is charged with an air excess factor of 1.10-1.2.
Preferably, the side wall of the hydrolysis section is provided with a long open flame igniter which sprays flame towards the main burner.
Preferably, the main burner comprises:
a combustible gas feeding pipe is arranged on the top of the furnace,
the combustion-supporting air feeding pipe is obliquely arranged on the side wall of the combustible gas feeding pipe and is communicated with the combustible gas feeding pipe; the combustion air in the combustion air feed pipe obliquely flows into the combustible gas feed pipe downwards;
at least two mixers arranged in the combustible gas feed pipe;
at least one distribution disc, wherein each distribution disc is arranged in the combustible gas feeding pipe and is positioned between two adjacent mixers;
the secondary air feeding pipe is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion-supporting air feeding pipe;
the secondary combustible gas feeding pipe is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion-supporting air feeding pipe;
and the porous nozzle is arranged at an outlet at the bottom of the combustible gas feeding pipe.
The working principle of the main burner of the invention is as follows: combustible gas lets in from combustible gas inlet pipe top, and combustion air lets in from combustion air inlet pipe slant downwards and takes place to mix in advance with combustible gas in first blender, and the gas after mixing in advance passes the distribution dish in proper order and makes its flow more stable, and the gas mixture gets into next blender after passing through the distribution dish, carries out the second time and mixes, and the effect is mixed in the at utmost guarantee, at last through porous nozzle blowout burning. The multi-hole nozzle enables flame combustion to be more stable, and dust is isolated from the interior of the combustor to the maximum extent. Meanwhile, secondary air and secondary combustible gas are respectively introduced into the secondary air inlet pipe and the secondary combustible gas inlet pipe and are downwards sprayed out, and because the air in the combustible gas inlet pipe is excessive, the excessive air can be wrapped by supplementing the secondary combustible gas to carry out secondary combustion, so that the reaction efficiency of raw materials is improved.
The main burner of the invention has the advantages that:
(1) The flame length fluctuation is small, the fluctuation caused by the fluctuation of the inlet pressure is not easy to occur, the reaction temperature field is uniform, the flame stability and safety are improved, and the tempering is not easy to occur;
(2) Compared with the traditional combustor, the combustor is provided with a premixing area and a buffer area, so that the flowing state of raw materials is changed, the mixing degree of multiple strands of raw materials is improved, the materials are uniformly mixed, the combustion efficiency is improved, and the reaction is complete;
(3) The nozzle of the combustion head is not easy to scale and flame out;
(4) The nozzle has good stability and is not easy to fall off.
Preferably, a plurality of baffles are arranged in the combustion air feeding pipe at intervals along the air inlet direction, and the angles of the baffles are staggered.
The plurality of baffle plates are overlapped at different angles, and when combustion-supporting air sequentially passes through, the air is changed into a turbulent flow state from a advection state, so that the subsequent mixing and combustion with combustible gas are facilitated.
Preferably, the baffle is connected to the combustion air feed pipe by a fixing rod.
Preferably, the included angle between the combustion air feeding pipe and the combustible gas feeding pipe is 25-90 degrees.
Preferably, the mixer level located at the highest level is located at the junction of the combustion air feed pipe and the combustible gas feed pipe.
The highest mixer must be located at the junction of the combustion air feed pipe and the combustible gas feed pipe to ensure that the combustion air and the combustible gas are premixed in the mixer.
Preferably, the burner structure further comprises a jacket cooling pipe sleeved outside the sidewall of the bottom of the combustible gas feeding pipe.
The bottom of the combustible gas feed pipe is cooled by jacket water, so that the traditional castable structure is replaced, and the service life is prolonged.
Preferably, the bottom of the jacket cooling pipe is provided with a water inlet A, and the top of the jacket cooling pipe is provided with a water outlet A.
The water flows into the bottom and out of the top, so that the water cooling effect can be improved.
Preferably, the burner structure further comprises a mounting flange disposed on an outer wall of the combustible gas feed tube, the secondary air feed tube or the secondary combustible gas feed tube.
Preferably, the secondary combustible gas feeding pipe is sleeved outside the side wall of the secondary air feeding pipe.
And sleeving a secondary combustible gas feeding pipe outside the side wall of the secondary air feeding pipe, and then matching with an air inlet of the hydrolysis section to be positioned outside the secondary raw material inlet. The design can enable the supplemented gas to wrap the flame outside, and the gas-combustible gas-air are sequentially arranged from outside to inside, the special wrapping structure can effectively increase the contact area of the combustible gas and the air, greatly increase the combustion efficiency and reduce the generation of byproducts. In the prior art, the air inlet position is designed relatively randomly, and the design is not concerned about the air inlet position.
Preferably, the secondary air feeding pipe is sleeved on the side wall of the jacket cooling pipe.
The jacket cooling pipe is established to secondary combustible gas inlet pipe, overgrate air inlet pipe cover in proper order, utilizes the waste heat can preheat secondary combustible gas and overgrate air, is favorable to follow-up abundant burning, simultaneously make full use of the energy.
Preferably, a furnace wall cleaning spray gun is arranged in each 400-800mm of height of the gathering section; the furnace wall cleaning spray guns are uniformly distributed in the circumferential direction of the gathering section.
Under the design, the ash removing air blown out by the furnace wall cleaning nozzle can spirally flow along the furnace wall, and can effectively sweep the accumulated ash on the furnace wall.
Preferably, the secondary combustor spray gun comprises a nozzle pipe body, and a fuel gas channel penetrating through the nozzle pipe body in the length direction is arranged in the nozzle pipe body; a cooling medium jacket is sleeved outside the nozzle pipe body, and a cooling medium inlet and a cooling medium outlet are formed in the cooling medium jacket; the outlet end of the nozzle tube body is provided with a main outlet and a plurality of auxiliary outlets which are arranged around the main outlet in a divergent manner; the secondary burner lances are distributed uniformly in the circumferential direction of the collecting section.
The special design of the main outlet and the auxiliary outlet at the outlet end of the nozzle tube body can enable gas sprayed out by the secondary combustor spray gun to be spiral, and can further promote efficient reaction.
Preferably, the furnace wall cleaning lances are evenly distributed in the circumferential direction of the collecting section.
Preferably, the distance between the screening plate and the bottom of the screening discharge section is 300-500mm.
Preferably, cooling water circulation jackets are arranged on the outer sides of the hydrolysis section, the aggregation section and the screening discharge section; the bottom of the screening discharge section is provided with a water inlet B, and the side wall of the hydrolysis section is provided with a water outlet B.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can improve the grade of the white carbon black product and reduce the content of metal impurities.
2. The invention can solve the problem of temperature field fluctuation caused by ash deposition on the furnace wall and simultaneously reduce the occurrence probability of the lumpy white carbon black in the product.
3. The invention can solve the problem of frequent flameout of the main burner in the production process.
4. The invention can reduce the specific gravity of the qualified white carbon black product in the bottom waste discharge port.
5. The invention can solve the problem that chlorine and nitrogen oxides exceed standards in the reaction production process and reduce the rear-end treatment cost.
6. The invention can reduce the investment cost of raw and auxiliary materials.
7. Compared with the traditional combustion furnace, the invention reduces the percentage of the generated by-products to 0.2 percent, and reduces the treatment cost of the subsequent system by 80 percent compared with the traditional combustion furnace. Meanwhile, the quality grade of the product is improved, and compared with the traditional product, the price of the product is increased by 60 percent and one ton. The safety and stability are improved, and the input cost of raw and auxiliary materials is reduced by 10 percent.
Drawings
FIG. 1 is a schematic structural view of a combustion furnace structure of the present invention;
FIG. 2 is a top plan view of the gathering section of the present invention (only the oven wall cleaning lances are indicated);
FIG. 3 is a schematic view of a secondary burner lance according to the present invention;
FIG. 4 is a schematic view of a configuration of the outlet end of the secondary burner lance of the present invention;
FIG. 5 is a schematic view of a configuration of the outlet end of the secondary burner lance of the present invention;
FIG. 6 is a schematic view of a main burner of the present invention.
The reference signs are: combustible gas feed pipe 1, combustion air feed pipe 2, mixer 3, distribution disc 4, secondary air feed pipe 5, secondary combustible gas feed pipe 6, porous nozzle 7, baffle plate 8, fixing rod 9, jacket cooling pipe 10, water inlet A11, water outlet A12, fixing flange 13, hydrolysis section 14, aggregation section 15, screening discharge section 16, main burner 17, secondary raw material inlet 18, air inlet 19, secondary burner spray gun 20, furnace wall cleaning spray gun 21, discharge port 22, screening hot air inlet 23, screening plate 24, ever-burning flame igniter 25, cooling water circulation jacket 26, water inlet B27, water outlet B28, small-particle-size white carbon black discharge port 29, nozzle pipe body 100, gas channel 101, cooling medium jacket 102, cooling medium inlet 103, cooling medium outlet 104, main outlet 105 and auxiliary outlet 106.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
As shown in FIG. 1, a white carbon black combustion furnace structure comprises a hydrolysis section 14, an aggregation section 15 and a screening discharge section 16 which are connected in sequence. The hydrolysis section, the aggregation section and the screening discharge section are detachably connected; the gathering section is detachably connected by a plurality of sections of cylinders. Wherein:
the hydrolysis section has the structure that: the top of the hydrolysis section is provided with a main burner 17; the side wall of the hydrolysis section is provided with a secondary raw material inlet 18, an air inlet 19 and a long open flame igniter 25 (which can be designed to have an automatic telescopic function) which face the flame sprayed by the main burner. The air inlet and the secondary raw material inlet are positioned on the same side wall of the hydrolysis section, and the air inlet is positioned on the outer side of the secondary raw material inlet. The included angle between the air inlet and the secondary raw material inlet and the vertical direction is 40 degrees. The air inlet is filled with air with the excess coefficient of 1.10-1.2.
The structure of the gathering section is as follows: a plurality of secondary burner spray guns 20 and furnace wall cleaning spray guns 21 (one is arranged in each 400-800mm height) are arranged on the side wall of the gathering section at different heights; each furnace wall cleaning spray gun is provided with a plurality of ash removal air nozzles which are tangential to the furnace wall and have different directions; the bottom of the side wall of the aggregation section is provided with a small-particle-size white carbon black discharge port 29. The furnace wall cleaning lances and the post-combustor lances are evenly distributed in the circumferential direction of the gathering section (as shown in fig. 2).
As shown in fig. 3, the secondary burner lance includes a nozzle body 100, and a gas passage 101 penetrating the nozzle body in the length direction is provided in the nozzle body; a cooling medium jacket 102 is sleeved outside the nozzle pipe body, and a cooling medium inlet 103 and a cooling medium outlet 104 are arranged on the cooling medium jacket; as shown in fig. 5-6, the outlet end of the nozzle body is provided with a primary outlet 105 and a plurality of secondary outlets 106 arranged in a diverging pattern around the periphery of the primary outlet.
The structure of the screening discharge section is as follows: the bottom of the screening discharge section is provided with a discharge port 22 and a screening hot air inlet 23; and a screening plate 24 is arranged above the discharge port, and the distance between the screening plate and the bottom of the screening discharge section is 300-500mm.
In addition, the outer sides of the hydrolysis section, the aggregation section and the screening discharge section are provided with cooling water circulation jackets 26; the bottom of the screening discharge section is provided with a water inlet B27, and the side wall of the hydrolysis section is provided with a water outlet B28.
Specifically, as shown in fig. 6, the main burner includes:
a combustible gas feed pipe 1.
The combustion-supporting air feeding pipe 2 is obliquely arranged on the side wall of the combustible gas feeding pipe at an angle of 60 degrees and is communicated with the combustible gas feeding pipe; the combustion air in the combustion air feed pipe flows into the combustible gas feed pipe obliquely downwards; a plurality of baffle plates 8 are arranged in the combustion air feeding pipe at intervals along the air inlet direction, and the angles of the baffle plates are staggered. The baffles are connected to the combustion air feed pipe by a fixed rod 9.
The two mixers 3 are sequentially arranged in the combustible gas feeding pipe; the mixer at the highest level is located at the junction of the combustion air feed pipe and the combustible gas feed pipe.
A distribution plate 4, which is arranged in the combustible gas feed pipe and is positioned between two adjacent mixers.
The secondary air feeding pipe 5 is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion-supporting air feeding pipe;
the secondary combustible gas feeding pipe 6 is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion air feeding pipe; the secondary combustible gas feeding pipe is simultaneously sleeved outside the side wall of the secondary air feeding pipe.
And the porous nozzle 7 is arranged at an outlet at the bottom of the combustible gas feeding pipe.
A jacket cooling pipe 10 sleeved outside the side wall of the bottom of the combustible gas feeding pipe. The bottom of the jacket cooling pipe is provided with a water inlet A11, and the top is provided with a water outlet A12. The secondary air feeding pipe is sleeved outside the side wall of the jacket cooling pipe.
And the fixed flange 13 is arranged on the side wall of the combustible gas feeding pipe.
The working principle of the main burner in the embodiment is as follows: the plurality of baffle plates are overlapped at different angles, and when combustion-supporting air sequentially passes through, the air is changed into a turbulent flow state from a advection state, so that the subsequent mixing and combustion with combustible gas are facilitated. Combustible gas lets in from combustible gas inlet pipe top, and combustion air takes place to mix in advance with combustible gas in first blender, and gas after mixing in advance passes the distribution dish in proper order and makes its flow more stable, and the gas mixture gets into next blender after passing through the distribution dish, carries out the second time and mixes, and the maximum guarantee mixes the effect, passes through porous nozzle blowout burning at last. The multi-hole nozzle enables flame combustion to be more stable, and dust is isolated into the combustor to the maximum extent. Meanwhile, secondary air and secondary combustible gas are respectively introduced into the secondary air inlet pipe and the secondary combustible gas inlet pipe and are downwards sprayed out, and because the air in the combustible gas inlet pipe is excessive, the excessive air can be wrapped by supplementing the secondary combustible gas to carry out secondary combustion, so that the reaction efficiency of raw materials is improved.
The main burner of the invention can reduce the flameout rate by 40 percent and improve the utilization rate of raw materials by 50 percent. The investment cost is reduced. Meanwhile, the controllable accuracy of the flame temperature is +/-3 degrees.
The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides a white carbon black burning furnace structure which characterized in that: comprises a hydrolysis section (14), an aggregation section (15) and a screening discharge section (16) which are connected in sequence;
the top of the hydrolysis section is provided with a main burner (17); a secondary raw material inlet (18) and an air inlet (19) which face the main burner and jet flame are arranged on the side wall of the hydrolysis section; the air inlet and the secondary raw material inlet are positioned on the side wall of the hydrolysis section at the same side, and the air inlet is positioned outside the secondary raw material inlet; the included angle between the air inlet and the secondary raw material inlet and the vertical direction is 30-50 degrees; the excess coefficient of the air filled in the air inlet is 1.10-1.2; the side wall of the hydrolysis section is provided with a long open flame igniter (25) which sprays flame towards the main burner;
a plurality of secondary burner spray guns (20) and furnace wall cleaning spray guns (21) are arranged on the side wall of the gathering section at different heights; each furnace wall cleaning spray gun is provided with a plurality of ash removal air nozzles which are tangential to the furnace wall and have different directions; the bottom of the side wall of the aggregation section is provided with a small-particle-size white carbon black discharge opening (29);
the bottom of the screening discharge section is provided with a discharge hole (22) and a screening hot air inlet (23); and a screening plate (24) is arranged above the discharge hole.
2. The white carbon black combustion furnace structure according to claim 1, wherein the hydrolysis section, the aggregation section and the screening discharge section are detachably connected; the gathering section is detachably connected by a plurality of sections of cylinders.
3. The white carbon black combustion furnace structure according to claim 1, wherein the main burner comprises:
a combustible gas feeding pipe (1),
the combustion-supporting air feeding pipe (2) is obliquely arranged on the side wall of the combustible gas feeding pipe and is communicated with the combustible gas feeding pipe; the combustion air in the combustion air feed pipe flows into the combustible gas feed pipe obliquely downwards;
at least two mixers (3) arranged in the combustible gas feed pipe;
at least one distribution plate (4), each distribution plate is arranged in the combustible gas feed pipe and is positioned between two adjacent mixers;
the secondary air feeding pipe (5) is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion-supporting air feeding pipe;
the secondary combustible gas feeding pipe (6) is sleeved outside the side wall of the combustible gas feeding pipe, has a downward air outlet and is positioned below the combustion-supporting air feeding pipe;
and the porous nozzle (7) is arranged at an outlet at the bottom of the combustible gas feeding pipe.
4. The white carbon black combustion furnace structure of claim 3, characterized in that:
a plurality of baffle plates (8) are arranged in the combustion air feeding pipe at intervals along the air inlet direction, and the angles of the baffle plates are staggered; the baffle plate is connected in the combustion air feeding pipe through a fixed rod (9); and/or
The included angle between the combustion-supporting air feeding pipe and the combustible gas feeding pipe is 25-90 degrees; and/or
The mixer height at the highest position is located at the junction of the combustion air feed pipe and the combustible gas feed pipe.
5. The white carbon black combustion furnace structure according to claim 3 or 4, wherein the main burner further comprises a jacket cooling pipe (10) sleeved outside the sidewall of the bottom of the combustible gas feeding pipe; the bottom of the jacket cooling pipe is provided with a water inlet A (11), and the top of the jacket cooling pipe is provided with a water outlet A (12); the secondary air feeding pipe is sleeved outside the side wall of the jacket cooling pipe; the secondary combustible gas inlet pipe is simultaneously sleeved outside the lateral wall of the secondary air inlet pipe.
6. The white carbon black combustion furnace structure of claim 1, wherein a furnace wall cleaning spray gun is arranged in every 400-800mm of height of the gathering section; the furnace wall cleaning spray guns are uniformly distributed in the circumferential direction of the gathering section.
7. The white carbon black combustion furnace structure according to claim 1, wherein the secondary burner lance comprises a nozzle tube body (100), and a gas channel (101) penetrating the length direction of the nozzle tube body is arranged in the nozzle tube body; a cooling medium jacket (102) is sleeved outside the nozzle pipe body, and is provided with a cooling medium inlet (103) and a cooling medium outlet (104); the outlet end of the nozzle tube body is provided with a main outlet (105) and a plurality of auxiliary outlets (106) which are arranged around the periphery of the main outlet in a divergent manner; the secondary burner lances are distributed uniformly in the circumferential direction of the collecting section.
8. The white carbon black combustion furnace structure of claim 1, wherein the distance between the screening plate and the bottom of the screening discharge section is 300-500mm.
9. The white carbon black combustion furnace structure according to claim 1, wherein the hydrolysis section, the aggregation section and the screening discharge section are provided with cooling water circulation jackets (26) at the outer sides; the bottom of the screening discharge section is provided with a water inlet B (27), and the side wall of the hydrolysis section is provided with a water outlet B (28).
CN201911340680.0A 2019-12-23 2019-12-23 White carbon black combustion furnace structure Active CN111484022B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911340680.0A CN111484022B (en) 2019-12-23 2019-12-23 White carbon black combustion furnace structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911340680.0A CN111484022B (en) 2019-12-23 2019-12-23 White carbon black combustion furnace structure

Publications (2)

Publication Number Publication Date
CN111484022A CN111484022A (en) 2020-08-04
CN111484022B true CN111484022B (en) 2022-12-06

Family

ID=71812444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911340680.0A Active CN111484022B (en) 2019-12-23 2019-12-23 White carbon black combustion furnace structure

Country Status (1)

Country Link
CN (1) CN111484022B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113932613A (en) * 2021-10-29 2022-01-14 咸宁南玻玻璃有限公司 Connecting structure of kiln nozzle brick and kiln nozzle

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411022A (en) * 1973-05-09 1975-10-22 Continental Carbon Co Secondary combustion process and apparatus for manufacture of carbon black
WO2007102745A1 (en) * 2006-03-07 2007-09-13 Kopperaa Miljöinvest As Method for the manufacture of pure silicon metal and amorphous silica by reduction of quartz (sio2)
CN101372317A (en) * 2008-09-28 2009-02-25 昆明理工大学 Method for producing high quality nanometer oxide by gas phase method
CN101734668A (en) * 2009-12-28 2010-06-16 周庆华 Method for preparing white carbon black by gas phase method and used equipment thereof
CN102001670A (en) * 2010-10-29 2011-04-06 沈阳化工股份有限公司 Method for producing silicon dioxide by using gas phase process
CN201882924U (en) * 2010-10-27 2011-06-29 信息产业电子第十一设计研究院科技工程股份有限公司 Combustion furnace for fumed silica production technology
CN102115082A (en) * 2011-03-10 2011-07-06 上海竟茨环保科技有限公司 Device for producing silicon dioxide by adopting vapor phase method
WO2011135579A2 (en) * 2010-04-27 2011-11-03 Aditya Birla Nuvo Limited Carbon black reactor
CN203461827U (en) * 2013-08-27 2014-03-05 浙江合盛硅业有限公司 Combustion furnace device for producing fumed silica by using methyl trichlorosilane
JP2017040429A (en) * 2015-08-19 2017-02-23 月島環境エンジニアリング株式会社 Method and apparatus for burning silane inclusion gas or silane inclusion waste liquid

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411022A (en) * 1973-05-09 1975-10-22 Continental Carbon Co Secondary combustion process and apparatus for manufacture of carbon black
WO2007102745A1 (en) * 2006-03-07 2007-09-13 Kopperaa Miljöinvest As Method for the manufacture of pure silicon metal and amorphous silica by reduction of quartz (sio2)
CN101372317A (en) * 2008-09-28 2009-02-25 昆明理工大学 Method for producing high quality nanometer oxide by gas phase method
CN101734668A (en) * 2009-12-28 2010-06-16 周庆华 Method for preparing white carbon black by gas phase method and used equipment thereof
WO2011135579A2 (en) * 2010-04-27 2011-11-03 Aditya Birla Nuvo Limited Carbon black reactor
CN201882924U (en) * 2010-10-27 2011-06-29 信息产业电子第十一设计研究院科技工程股份有限公司 Combustion furnace for fumed silica production technology
CN102001670A (en) * 2010-10-29 2011-04-06 沈阳化工股份有限公司 Method for producing silicon dioxide by using gas phase process
CN102115082A (en) * 2011-03-10 2011-07-06 上海竟茨环保科技有限公司 Device for producing silicon dioxide by adopting vapor phase method
CN203461827U (en) * 2013-08-27 2014-03-05 浙江合盛硅业有限公司 Combustion furnace device for producing fumed silica by using methyl trichlorosilane
JP2017040429A (en) * 2015-08-19 2017-02-23 月島環境エンジニアリング株式会社 Method and apparatus for burning silane inclusion gas or silane inclusion waste liquid

Also Published As

Publication number Publication date
CN111484022A (en) 2020-08-04

Similar Documents

Publication Publication Date Title
CN102031152B (en) Process nozzle and system for gasifying water coal slurry and application thereof
CN104277881B (en) Dry-process deslagging fluidized bed gasification reaction device
CN104263967A (en) Self-heating flashing speed smelting process and device for treating complex materials
CN111484022B (en) White carbon black combustion furnace structure
CN108728168A (en) Gasification burner
CN106276901A (en) A kind of oxygen full-boiled process produces carbide and the method and system of CO gas
CN204162666U (en) A kind of dry cinder discharging fluidized-bed gasification reaction unit
CN101929674B (en) Burner for main burning furnace of sulfur recovery unit
CN204981726U (en) Novel black reactor
CA1115499A (en) Apparatus for making carbon black
CN217382996U (en) Quench tower structure
CN209481593U (en) The full recovery system of coal gasification waste heat
CN208327885U (en) A kind of new-type carbon black reacting furnace combusting room device
CN215138177U (en) Separator of acid regeneration preconcentrator
CN211601604U (en) Large-scale flame gun device
CN115594205A (en) Dust-discharging and heat-insulating annular gap device and method for spray pyrolysis furnace
CN211450987U (en) Device for distributing inlet flue gas of quench tower
CN212565754U (en) Micro combustor for strengthening premixing
CN209978038U (en) Adjustable petroleum coke powder burner
CN217178517U (en) Oil-gas three-purpose burner
CN209481585U (en) Multi nozzle of gasification furnace with recuperation of heat
CN209383714U (en) The full recovery system of multiinjector waste heat
CN209481578U (en) Multiinjector dry powder gasification furnace
CN209481584U (en) Multi nozzle of gasification furnace with recuperation of heat
CN219709360U (en) Porous structure gun brick for horseshoe flame kiln

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: Building 4, No. 9, 17th Street, Baiyang Street, Qiantang District, Hangzhou City, Zhejiang Province, 310000

Patentee after: Zhejiang Jinggong New Material Technology Co.,Ltd.

Address before: 310018 building 4, No. 9, No. 17 street, Qiantang New Area (Xiasha), Jianggan District, Hangzhou City, Zhejiang Province

Patentee before: ZHEJIANG JINGGONG NEW MATERIAL TECHNOLOGY Co.,Ltd.