CN109205629B - Circulation formula gas phase method white carbon black deacidification system - Google Patents
Circulation formula gas phase method white carbon black deacidification system Download PDFInfo
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- CN109205629B CN109205629B CN201811391547.3A CN201811391547A CN109205629B CN 109205629 B CN109205629 B CN 109205629B CN 201811391547 A CN201811391547 A CN 201811391547A CN 109205629 B CN109205629 B CN 109205629B
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- 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
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Abstract
The invention relates to a white carbon black deacidification system by a circulation type gas phase method, which solves the problems of unstable airflow, uneven heating, enlarged material, agglomeration and secondary agglomeration of the existing deacidification furnace and influences on deacidification effect. The device comprises a plurality of deacidification furnaces which are sequentially connected in series, wherein the deacidification furnaces are sequentially provided with an air inlet section, a heating section, a collecting section and a separating section from bottom to top, the bottom end of the heating section is provided with a feed inlet, the collecting section is provided with a discharge outlet, a cyclone separator is arranged between the discharge outlet of the previous deacidification furnace and the feed inlet of the subsequent deacidification furnace, a distribution cone is arranged below the feed inlet between the air inlet section and the heating section, the bottom of the deacidification furnace is provided with a steam inlet and a hot air inlet, and the top of the deacidification furnace is provided with an air outlet. According to the invention, the deacidification effect is improved through different water vapor and hot air proportions in each stage; the guide cone forms a circulation flow in the heating section, the travel of the airflow in the heating section is increased, the flow velocity in the heating section is improved, the coagulation and secondary agglomeration of materials are reduced, and the deacidification effect is further improved.
Description
Technical Field
The invention belongs to the technical field of white carbon black production, relates to a white carbon black deacidification system, and in particular relates to a circulation type gas phase method white carbon black deacidification system.
Background
The gas phase white carbon black has small particles and large specific surface area, and the excellent stability, reinforcement, thickening property and thixotropy of the gas phase white carbon black are widely applied to various industrial fields such as rubber, paint, medicine, papermaking and the like, so the gas phase white carbon black is one of extremely important ultrafine inorganic new materials. The deacidification of the gas-phase white carbon black is one of important links in the whole production process of the gas-phase white carbon black, and the final quality and surface performance of the product are directly related.
In the whole production process of the white carbon black by the gas phase method, the deacidification treatment of the product is a core technology, and the purity and physical parameters of the product are directly related. The deacidification treatment of the white carbon black by the gas phase method is generally realized by adopting a deacidification furnace, the lower end of the deacidification furnace is fed with water vapor, the material is blown by rising airflow to form a boiling fluidization effect, and the acid in the material is hammered. The fluidized material is heated in the middle section of the deacidification furnace, so that a better deacidification effect is achieved. For the existing deacidification furnace, the airflow is unstable and the heating is uneven in the material fluidization deacidification process, so that the materials are easily enlarged, coagulated and secondarily agglomerated, and the deacidification effect is influenced.
Disclosure of Invention
The invention mainly aims at solving the problems that the existing deacidification furnace is unstable in airflow, nonuniform in heating, and large in material size, and is aggregated and secondarily aggregated to influence the deacidification effect, and provides a circulating type white carbon black deacidification system.
The aim of the invention is mainly achieved by the following scheme: the utility model provides a circulation formula gas phase method white carbon black deacidification system, includes a plurality of deacidification stoves of establishing ties in proper order, deacidification stove sets gradually air inlet section, heating section, collection section, separation section, its characterized in that from the bottom up: the side wall of heating section bottom is equipped with the feed inlet, and the side wall of collecting the section is equipped with the discharge gate, in the adjacent deacidification stove, is equipped with cyclone between the discharge gate of preceding deacidification stove and the feed inlet with the deacidification stove afterwards, be equipped with the distribution cone in the below of feed inlet between air inlet section and the heating section, the deacidification stove is equipped with vapor inlet and hot-blast import respectively in the below of distribution cone, the top of deacidification stove is equipped with the air outlet. The device can realize different air inlet ratios to the deacidification furnaces at different positions through the air inlet adjustment of the steam inlet and the hot air inlet, and the steam ratio of the deacidification furnace which is more backward is smaller, so that the air inlet requirements in different drying stages are met, the reasonable steam ratio is ensured, and the deacidification effect is improved.
Preferably, the distribution cone comprises a conical hopper with an upward opening, the surface of the conical hopper is uniformly provided with vent holes, the axis position of the conical hopper is vertically provided with a rotating shaft, an impeller is arranged below the rotating shaft, the impeller is arranged below the conical hopper, above the steam inlet and the hot air inlet, a guide cone is arranged above the rotating shaft, and the lower surface of the guide cone is an inverted conical surface. The material is filled in the conical hopper, the air inlet of the water vapor inlet and the air inlet in proportion passes through the vent holes from bottom to top, the material in the conical hopper is fluidized and boiled under the action of air inlet flow, and the material is fully contacted with the heating pipe in the heating section, so that the efficiency is improved. From down ascending air inlet through impeller position, drive the pivot and rotate to drive the guide cone and rotate, upwards boiling material is outwards whipped by the back taper of guide cone from the toper fill, forms the circulation effect, increases the stroke of air current at the heating section, improves at the heating section velocity of flow, and the fully distributed material reduces the curdling of material, secondary reunion, further improves the deacidification effect, in the deacidification system that same quantity deacidification stove established ties formed, further promotes the deacidification effect, promotes the quality of final product.
Preferably, the upper surface of the guide cone is an upwardly bulged cambered surface or conical surface. The upper surface of the guide cone is an arc surface or slope surface with high middle and low circumference, so that the accumulation of materials on the upper surface of the guide cone is reduced.
Preferably, the guide cone is a stainless steel hollow shell. The guide cone is a hollow shell, the weight is small, the driving requirement is low, and the load is small.
Preferably, bearings for supporting the rotating shaft are respectively arranged at the lower cone top and the center of the upper surface of the cone-shaped bucket.
Preferably, the air inlet section is of an inverted cone structure, the steam inlet is arranged at the bottom end of the air inlet section and is used for upwards air inlet along the axis of the deacidification furnace, the hot air inlet is arranged on the side wall of the air inlet section, and the hot air inlet extends into the air inlet section through a hot air pipe bent at 90 degrees and is used for upwards air inlet along the axis of the deacidification furnace.
Preferably, the inner diameter of the separation section is larger than that of the heating section, and the collecting section is a conical section with the inner diameter being uniformly transited.
Preferably, the steam inlets of the deacidification furnaces are connected in series through a steam main pipe, and the hot air inlets of the deacidification furnaces are connected in series through a hot air main pipe.
According to the invention, through different water vapor and hot air proportions in each stage, the water content of the inlet air is reasonably adjusted, and the deacidification effect is improved; the fluidized material is outwards swung through the rotating guide cone, a circulation is formed in the heating section, the travel of the airflow in the heating section is increased, the flow speed in the heating section is improved, the material is fully distributed, the coagulation and secondary agglomeration of the material are reduced, and the deacidification effect is further improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a construction of the present invention.
FIG. 2 is a schematic diagram of the feeding structure of the deacidification furnace of the present invention.
Illustration of: 1. the deacidification furnace comprises a deacidification furnace body, a 2 air inlet section, a 3 heating section, a 4 collecting section, a 5 separating section, a 6 feeding port, a 7 discharging port, a 8 cyclone separator, a 9 steam inlet, a 10 hot air inlet, a 11 air outlet, a 12 steam main pipe, a 13 hot air main pipe, a 14 conical hopper, a 15 rotary shaft, a 16 guide cone, a 17 impeller.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Examples: a circulation type gas phase method white carbon black deacidification system is shown in figure 1. The device comprises a plurality of deacidification furnaces 1 which are sequentially connected in series, wherein the deacidification furnaces are sequentially provided with an air inlet section 2, a heating section 3, a collecting section 4 and a separating section 5 from bottom to top. The lateral wall that deacidifies 1 heating section 3 bottom is equipped with feed inlet 6, and the lateral wall of collecting section is equipped with discharge gate 7, in the adjacent deacidification stove, is equipped with cyclone 8 between the discharge gate 7 of preceding deacidification stove and the feed inlet 6 of follow-up deacidification stove. A distribution cone is arranged below the feed inlet 6 between the air inlet section 2 and the heating section 3, a steam inlet 9 and a hot air inlet 10 are respectively arranged below the distribution cone, and an air outlet 11 is arranged at the top of the deacidification furnace. The air inlet section 2 is of an inverted cone structure, the steam inlet 9 is arranged at the bottom end of the air inlet section and is used for upwards air inlet along the axis of the deacidification furnace, the hot air inlet 10 is arranged on the side wall of the air inlet section, and the hot air inlet extends into the air inlet section through a hot air pipe bent at 90 degrees and is used for upwards air inlet along the axis of the deacidification furnace. The steam inlets 9 of the deacidification furnaces 1 are connected in series through a steam main pipe 12, and the hot air inlets 10 of the deacidification furnaces are connected in series through a hot air main pipe 13. The inner diameter of the separation section 5 is larger than that of the heating section 3, and the collection section 3 is a conical section with the inner diameter being uniformly transited between the separation section and the heating section.
The feeding department distributes the awl structure and is as shown in fig. 2, it is including opening toper fill 14 up to distribute the awl, and the toper fights the surface evenly and offers the ventilation hole, the vertical pivot 15 that sets up in axis position that the toper fights, pivot below are equipped with impeller 17, and the impeller sets up in the below that the toper fights, steam import and hot air import's top, and the pivot top is equipped with direction awl 16, and the lower surface of direction awl is the conical surface of falling, and the upper surface of direction awl is the conical surface of upwards rising. The guide cone is a stainless steel hollow shell. Bearings for supporting the rotating shaft are respectively arranged at the lower cone top and the center of the upper surface of the cone hopper.
The device can realize different air inlet ratios to the deacidification furnaces at different positions through the air inlet adjustment of the steam inlet and the hot air inlet, and the steam ratio of the deacidification furnace which is more backward is smaller, so that the air inlet requirements in different drying stages are met, the reasonable steam ratio is ensured, and the deacidification effect is improved. The material is filled in the conical hopper, the air inlet of the water vapor inlet and the air inlet in proportion passes through the vent holes from bottom to top, the material in the conical hopper is fluidized and boiled under the action of air inlet flow, and the material is fully contacted with the heating pipe in the heating section, so that the efficiency is improved. From down ascending air inlet through impeller position, drive the pivot and rotate to drive the guide cone and rotate, upwards boiling material is outwards whipped by the back taper of guide cone from the toper fill, forms the circulation effect, increases the stroke of air current at the heating section, improves at the heating section velocity of flow, and the fully distributed material reduces the curdling of material, secondary reunion, further improves the deacidification effect, in the deacidification system that same quantity deacidification stove established ties formed, further promotes the deacidification effect, promotes the quality of final product.
Claims (4)
1. The utility model provides a circulation formula gas phase method white carbon black deacidification system, includes a plurality of deacidification stoves of establishing ties in proper order, deacidification stove sets gradually air inlet section, heating section, collection section, separation section, its characterized in that from the bottom up: the side wall of the bottom end of the heating section is provided with a feed inlet, the side wall of the collecting section is provided with a discharge outlet, a cyclone separator is arranged between the discharge outlet of the previous deacidification furnace and the feed inlet of the subsequent deacidification furnace in the adjacent deacidification furnaces, a distribution cone is arranged between the air inlet section and the heating section below the feed inlet, the deacidification furnaces are respectively provided with a steam inlet and a hot air inlet below the distribution cone, and the top of the deacidification furnace is provided with an air outlet; the distribution cone comprises a conical hopper with an upward opening, vent holes are uniformly formed in the surface of the conical hopper, a rotating shaft is vertically arranged at the axis position of the conical hopper, an impeller is arranged below the rotating shaft, the impeller is arranged below the conical hopper, above a steam inlet and a hot air inlet, a guide cone is arranged above the rotating shaft, and the lower surface of the guide cone is an inverted cone surface; the air inlet from bottom to top passes through the impeller position to drive the rotating shaft to rotate, so as to drive the guide cone to rotate, and the material boiling upwards from the conical hopper is thrown outwards by the reverse cone surface of the guide cone to form a circulation effect; the upper surface of the guide cone is an upward bulged cambered surface or conical surface; the guide cone is a stainless steel hollow shell; bearings for supporting the rotating shaft are respectively arranged at the lower cone top and the center of the upper surface of the cone-shaped bucket.
2. The circulation type white carbon black deacidification system by a gas phase method according to claim 1, wherein the system is characterized in that: the hot air inlet is of an inverted cone structure, the steam inlet is arranged at the bottom end of the air inlet section and is used for feeding air upwards along the axis of the deacidification furnace, the hot air inlet is arranged on the side wall of the air inlet section, and the hot air inlet extends into the air inlet section through a hot air pipe bent at 90 degrees and feeds air upwards along the axis of the deacidification furnace.
3. The circulation type white carbon black deacidification system by a gas phase method according to claim 1, wherein the system is characterized in that: the inner diameter of the separation section is larger than that of the heating section, and the collecting section is a conical section with uniform transition inner diameter.
4. The circulation type white carbon black deacidification system by a gas phase method according to claim 1, wherein the system is characterized in that: the steam inlets of the deacidification furnaces are connected in series through a steam main pipe, and the hot air inlets of the deacidification furnaces are connected in series through a hot air main pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811391547.3A CN109205629B (en) | 2018-11-21 | 2018-11-21 | Circulation formula gas phase method white carbon black deacidification system |
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| CN201811391547.3A CN109205629B (en) | 2018-11-21 | 2018-11-21 | Circulation formula gas phase method white carbon black deacidification system |
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| CN109205629A CN109205629A (en) | 2019-01-15 |
| CN109205629B true CN109205629B (en) | 2023-11-14 |
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| CN116081631B (en) * | 2022-12-30 | 2024-05-31 | 浙江工程设计有限公司 | Deacidification method for gas-phase white carbon black |
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