Powder carbon black activation modification spray drying equipment
By using a powdered carbon black activation and modification spray drying equipment, high-speed centrifugal atomization and multi-stage dust removal technology are employed to solve the problems of poor drying effect and dust leakage of powdered carbon black, achieving efficient drying and environmentally friendly emissions, and making it suitable for continuous production of heat-sensitive materials.
Patent Information
- Application Number
- CN202422894094.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In traditional carbon black deep processing technology, powdered carbon black mixed with modifiers has poor drying effect and dust leakage problem.
The powdered carbon black activation and modification spray drying equipment uses a high-speed centrifugal atomizer to atomize the liquid material into fine droplets, and instantly evaporates the moisture in the high-temperature flue gas. Combined with a multi-stage dust collector system, it ensures that the drying efficiency and dust emission meet the standards.
It achieves efficient drying and dust removal, shortens drying time, improves drying efficiency, and ensures dust emissions meet standards, making it suitable for continuous production of heat-sensitive materials.
Smart Images
Figure CN223641784U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to carbon black granulation technical field especially relates to a kind of powder carbon black activation modification spray drying equipment. BACKGROUND
[0002] The accumulation of a large number of waste tires not only occupies land, but also easily causes fire and environmental pollution. Recycling and processing waste tires can not only alleviate the pressure on the environment, but also effectively recycle resources. Waste tire pyrolysis is a kind of irreversible thermochemical reaction that uses high temperature to make organic matter in waste tires crack, escape volatile products and form solid coke in an oxygen-free or oxygen-deficient atmosphere. During the process of incomplete thermal degradation, gas, liquid and solid products can be formed. This method can completely crack waste tires into pyrolysis oil, pyrolysis carbon black and pyrolysis non-condensable gas and other useful products.
[0003] Pyrolysis carbon black is different from virgin carbon black, with lower performance and higher impurity ash content, and cannot be directly used in downstream industries, so its use value is low. Therefore, deep processing of carbon residue after pyrolysis is needed. The traditional carbon black deep processing process is usually magnetic separation-grinding (adding modifier)-granulation-drying-packaging. However, when drying the powder carbon black after mixing the modifier, there are problems of poor drying effect and dust leakage. UTILITY MODEL CONTENT
[0004] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, objects and advantages of the present application are more concise and easy to understand.
[0005] The utility model provides a kind of powder carbon black activation modification spray drying equipment, solve the technical problem that there is poor drying effect when drying the powder carbon black after mixing modifier, with the characteristics of good drying effect and high drying efficiency.
[0006] The utility model discloses a kind of powder carbon black activation modification spray drying equipment, including combination tower mounting seat, high-speed centrifugal atomizer, high-temperature flue gas supply component, material drying tower;Combination tower mounting seat has first cavity, and high-temperature flue gas import with the first cavity communication;The high-speed centrifugal atomizer is installed on the combination tower mounting seat, has the modified powder carbon black feed port for activation modification powder carbon black input, and the nozzle of the high-speed centrifugal atomizer is located in the first cavity;High-temperature flue gas supply component is connected with the high-temperature flue gas import by high-temperature flue gas output pipeline, for injecting high-temperature flue gas into the first cavity;Material drying tower includes tower body, the tower body has second cavity, and from tower body to the second cavity protrudes and the first cavity and the second cavity are communicated with the feed guide part, the inner diameter of the feed guide part is increasing along the direction of conveying material.
[0007] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0008] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0009] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0010] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0011] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0012] In some embodiments, the tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
[0013] In some embodiments, the high-temperature flue gas supply assembly comprises a warming hot blast furnace and a warming burner connected with the warming hot blast furnace, and the warming hot blast furnace is connected with the high-temperature flue gas inlet through the high-temperature flue gas output pipeline.
[0014] In some embodiments, the powder carbon black activation modification spray drying equipment is connected with the material stirring tank through a material conveying pipeline, and a pressure feeding pump is arranged on the material conveying pipeline.
[0015] In some embodiments, the material stirring tank has a carbon black powder inlet and a modification activation additive inlet, and the modification activation additive inlet is connected with a modification activation additive storage tank.
[0016] Compared with the prior art, the beneficial effects of the present application are as follows:
[0017] The powder carbon black activation modification spray drying equipment is provided, the high-speed centrifugal atomizer is installed on the combined tower mounting seat, and the nozzle of the high-speed centrifugal atomizer is located in the first cavity of the combined tower mounting seat. The high-speed centrifugal atomizer rotates at high speed under the drive of the motor, the centrifugal force generated by rotation accelerates the movement of the liquid material on the atomizing disc, and finally atomizes into mist particles at the nozzle. The sprayed mist particles directly contact hot air in the first cavity, and most of the water can be evaporated in an instant during the contact between the fine mist particles and the hot air, greatly shortening the drying time. At the same time, the preliminary dried material enters the large-capacity second cavity through the guide part, on the one hand, the residence time of the drying process is increased, and on the other hand, the processing capacity is ensured, and the drying efficiency is improved. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the powder carbon black activation and modification spray drying equipment provided in this embodiment of the utility model;
[0020] In the above figures: 101, combined tower mounting base; 1011, first chamber; 1012, high-temperature flue gas inlet; 102, high-speed centrifugal atomizer; 1021, modified powdered carbon black feed inlet; 1031, heated hot air furnace; 1032, heated burner; 1033, high-temperature flue gas output pipe; 104, material drying tower; 1041, second chamber; 1042, feed guide; 1043, negative pressure air outlet; 1044, high-pressure induced draft fan; 1045, first cyclone dust collector; 1046, bag filter dust collector; 1047, venturi dust collector; 1048, second cyclone dust collector; 20, material mixing tank; 30, pressure feed pump; 40, modified activation additive storage tank. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.
[0022] This utility model provides a powdered carbon black activation and modification spray drying device. Figure 1 This is a schematic diagram of the structure of a spray drying apparatus for activated and modified powdered carbon black according to an embodiment of the present invention. (Reference) Figure 1As shown, the powder carbon black activation modification spray drying device comprises a combined tower mounting seat 101, a high-speed centrifugal atomizer 102, a high-temperature flue gas supply assembly, and a material drying tower 104; the combined tower mounting seat 101 has a first cavity 1011 and a high-temperature flue gas inlet 1012 communicating with the first cavity 1011; the high-speed centrifugal atomizer 102 is mounted on the combined tower mounting seat 101 and has a modified powder carbon black feeding port 1021 for input of the activated and modified powder carbon black, and a nozzle of the high-speed centrifugal atomizer 102 is located in the first cavity 1011; the high-temperature flue gas supply assembly is connected with the high-temperature flue gas inlet 1012 through a high-temperature flue gas output pipeline 1033 and is used for injecting high-temperature flue gas into the first cavity 1011; the material drying tower 104 comprises a tower body having a second cavity 1041 and a feeding guide part 1042 protruding from the tower body to the second cavity 1041 and communicating the first cavity 1011 and the second cavity 1041, and an inner diameter of the feeding guide part 1042 increases along a feeding direction.
[0023] The powder carbon black activation modification spray drying device has the high-speed centrifugal atomizer 102 mounted on the combined tower mounting seat 101 and the nozzle of the high-speed centrifugal atomizer 102 located in the first cavity 1011 of the combined tower mounting seat 101, the high-speed centrifugal atomizer 102 rotates at high speed under the drive of a motor, centrifugal force generated by the rotation accelerates movement of liquid material on an atomizing disc, and finally the liquid material is atomized into mist particles at the nozzle, the sprayed mist particles directly contact hot air in the first cavity 1011, and most of water in the mist particles can be evaporated in an instant during contact with the hot air, so that the drying time is greatly shortened, the preliminarily dried material enters the large-capacity second cavity 1041 through the guide part to enter the material drying tower 104, the residence time of the drying process is increased, and the processing capacity and drying efficiency are improved. Specifically, the material output from the pressure feeding pump 30 is conveyed to the high-speed centrifugal atomizer 102 through a material conveying pipeline, the high-speed centrifugal atomizer 102 mainly converts liquid material into mist particles by using centrifugal force generated by high-speed rotation, the atomizer rotates at high speed under the drive of a motor, centrifugal force generated by the rotation accelerates movement of liquid material on an atomizing disc, and finally the liquid material is atomized into mist particles at the nozzle and sprayed into the material drying tower 104 for drying. The volume of the atomized carbon black powder material can be increased by thousands of times, more than 90%-95% of water in the mist particles can be evaporated in an instant during contact with hot air, and the drying time can be controlled within 5-30 seconds.
[0024] The high-temperature flue gas supply assembly continuously introduces high-temperature flue gas into the first cavity 1011 through the high-temperature flue gas inlet 1012, the high-temperature flue gas further enters the second cavity 1041, the tower body has a negative pressure air outlet 1043 communicating with the second cavity 1041 for ensuring pressure balance of the device, and the negative pressure air outlet 1043 is connected with a suction port of a high-pressure induced draft fan 1044.
[0025] In order to avoid the high pressure induced draft fan 1044 in the process of suction negative pressure to take part of the drying and thus unable to meet the emission standards, the negative pressure air outlet 1043 of the tower body and the suction port of the high pressure induced draft fan 1044 are sequentially connected with the first cyclone dust collector 1045 and the bag dust collector 1046. Further, the Venturi dust collector 1047 connected with the gas outlet of the high pressure induced draft fan 1044, and the second cyclone dust collector 1048 connected with the Venturi dust collector 1047.
[0026] The negative pressure air outlet 1043 is sent into the combined dust removal system in the rear part by the negative pressure primary air supply pipe, first into the first cyclone dust collector 1045, and a temperature remote sensor is arranged on the negative pressure primary air supply pipe. The negative pressure primary air supply pipe is connected with the air inlet of the first cyclone dust collector 1045, the air outlet of the first cyclone dust collector 1045 is connected with the air inlet of the dust collector. The air inlet of the first cyclone dust collector 1045 is arranged at the upper part of the left side of the cylinder, and the discharge port of the first cyclone dust collector 1045 is arranged at the bottom of the lower conical body. The bag dust collector 1046 is arranged at the rear end of the first cyclone dust collector 1045, the air inlet is arranged at the left side of the bag dust collector 1046, the air outlet of the bag dust collector 1046 is arranged at the upper right side, the dust collecting bin is arranged at the lower part of the bin body of the bag dust collector 1046, and the screw machine ash discharging device is arranged at the lowermost part of the bin body. The air outlet of the bag dust collector 1046 is connected with the negative pressure secondary air supply pipe, the air volume regulating valve is arranged on the negative pressure secondary air supply pipe, and the dust-containing water vapor in the material drying tower 104 is sucked by the high pressure induced draft fan 1044. The Venturi dust collector 1047 is further arranged at the gas outlet of the high pressure induced draft fan 1044, and the basic principle is that the dust-containing gas is in close contact with the liquid (usually water), the inertia collision and other actions of the water droplets and particles are used to capture particles or increase the particles, so as to achieve the effect of dust removal. The air inlet of the Venturi dust collector 1047 is arranged at the left side of the cylinder and connected with the gas outlet of the high pressure induced draft fan 1044, and the air outlet of the Venturi dust collector 1047 is connected with the air inlet of the negative pressure tertiary air supply pipe. Finally, the Venturi dust collector 1047 is connected with the negative pressure tertiary air supply pipe, and then the second cyclone dust collector 1048 is connected with the air outlet of the second cyclone dust collector 1048, and the discharge port of the second cyclone dust collector 1048 is arranged at the bottom of the lower conical body and provided with a discharge valve.
[0027] It should be noted that the wet carbon black added with the modifier is rapidly dried under the action of hot air after entering the material drying tower 104, and the discharged dust-containing water vapor is sucked out under negative pressure by the high-pressure fan at the rear of the three-eliminator device, and is discharged up to standard. The function of each stage is: the main function of the cyclone dust collector is to separate solid particles from the gas flow, especially suitable for capturing dry non-fibrous particulate dust. Its working principle is to make the dust-containing gas flow rotate, use centrifugal force to separate and capture dust particles from the gas flow on the wall, and then rely on gravity to make the dust particles fall into the ash bucket; the bag dust collector 1046 is a relatively simple dust removal equipment, its main components are bag and skeleton, its working principle is that through the collision and friction of air and particles on the surface of the bag, dust particles are adsorbed by the bag, so as to realize the filtering effect; the working principle of the Venturi dust collector 1047 installed at the outlet of the high-pressure fan is based on the Venturi effect, that is, when the fluid passes through the converging pipe, the flow rate increases and the pressure decreases, thereby generating suction. Air enters the Venturi tube through the air inlet, dust in the air is adsorbed by the filter core, and purified air is discharged from the air outlet. The dust is adsorbed by the filter core, and the dust on the filter core will accumulate over time. When the dust accumulates to a certain extent, the filter core needs to be cleaned to ensure the normal work of the Venturi dust collector 1047.
[0028] The embodiment also provides a cyclone dust collector behind the Venturi dust collector 1047, which further ensures the sufficient separation of dust particles in the gas flow. Since the dry air extracted during the drying of the carbon black powder in the material drying tower 104 contains a large amount of dust of about 10%, the present technical solution uses dust collectors with different functions to limit the setting position of the dust collector for processing, so as to meet the standard discharge.
[0029] In some embodiments, the combined tower mounting seat 101 is fixedly installed at the top of the tower body of the material drying tower 104. The tower body of the material drying tower 104 has a straight cylinder portion and an inverted cone portion below the straight cylinder portion. The bottom of the inverted cone portion is provided with a discharge port.
[0030] The middle part of the top of the material drying tower 104 is vertically provided with a combined tower mounting seat 101, the left side of the combined tower mounting seat 101 has a high-temperature flue gas inlet 1012, and a high-speed centrifugal atomizer 102 is vertically arranged in the middle part of the combined tower mounting seat 101 and connected with a material conveying pipeline. The right side of the top of the material drying tower 104 is provided with a pressure remote sensor for detecting the pressure in the tower body and interlocked with a rear high-pressure induced draft fan 1044 to control the pressure in the tower within a reasonable range. The lower part of the left conical body of the material drying tower 104 is provided with a negative pressure air outlet 1043, and the water vapor after drying the material is sucked out by the high-pressure induced draft fan 1044. The lower part of the left conical body of the material drying tower 104 is provided with a tower body rapping device to prevent the material from bridging and blocking during the descending process. The lower part of the conical body of the material drying tower 104 is provided with a discharge port, and the discharge port is provided with a knife gate valve, a material drying tower 104 discharge valve and other discharge devices. In the process of sucking negative pressure through the negative pressure air outlet 1043 of the material drying tower 104, part of the dry powder will inevitably be taken away, and in order to meet the emission standard, several dust collectors with different functions are arranged at the rear part.
[0031] In some embodiments, the high-temperature flue gas supply assembly comprises a warming hot blast stove 1031 and a warming burner 1032 connected with the warming hot blast stove 1031, and the warming hot blast stove 1031 is connected with the high-temperature flue gas inlet 1012 through a high-temperature flue gas output pipeline 1033. The warming hot blast stove 1031 provides a drying heat source for the humid powder carbon black, and the left side end face of the warming hot blast stove 1031 is provided with the warming burner 1032, and the high-temperature flue gas outlet is arranged in the middle of the right side and connected with the high-temperature flue gas output pipeline 1033. The left side of the high-temperature flue gas output pipeline 1033 is provided with a temperature remote sensor for detecting the temperature of the output flue gas and interlocked with the warming burner 1032 to control the output temperature in the warming hot blast stove 1031.
[0032] In some embodiments, the powder carbon black activation modification spray drying device is connected to the material stirring tank 20 through a material conveying pipeline, and a pressure feeding pump 30 is arranged on the material conveying pipeline. The material stirring tank 20 has a carbon black powder inlet and a modification activation additive inlet connected to a modification activation additive storage tank 40. The carbon black powder meeting the particle size requirement after grinding in the previous step is conveyed into the carbon black material stirring tank 20 for storage. The material stirring tank 20 is a vertical structure, and the carbon black powder inlet is vertically arranged on the left side of the upper head of the tank body. The driving device is vertically arranged at the middle position of the upper head of the material stirring tank 20, and is connected to the lower material stirring tank 20 agitator through a coupling, so as to mix the powder in the material stirring tank 20 with the modification additives uniformly. The modification activation additive storage tank 40 is vertically arranged at the right position of the upper head of the material stirring tank 20, and can continuously provide the required modification additives for the powder entering the material stirring tank 20 according to the formula. An upper level meter is arranged on the upper part of the left side cylinder of the material stirring tank 20, and is interlocked with the external material conveying device to control the upper material level in the tank. A lower level meter is arranged on the lower conical body of the left side of the material stirring tank 20, and is interlocked with the pressure feeding pump 30 to control the lower material level in the tank. A driving device support is arranged at the middle position of the lower conical body of the material stirring tank 20, and a material outlet is arranged at the right position of the bottom. The wet powder with modification additives discharged from the bottom material outlet of the material stirring tank 20 is conveyed to the material drying tower 104 for drying through the pressure feeding pump 30. A feeding control gate valve is arranged at the inlet of the pressure feeding pump 30, and a pressure regulating valve is arranged at the outlet. The pressure regulating valve is used in cooperation with a pressure remote sensor to adjust the output pressure of the pressure feeding pump 30.
[0033] The powder carbon black activation modification spray drying device has the following advantages: fast drying speed, wide application range, high automation degree, and wide application prospect in industrial production. Specifically, the drying speed is fast: the spray drying technology uses an atomizer to disperse the liquid into extremely small droplets, which are efficiently exchanged with hot air, and most of the water can be evaporated in a short time, so that the drying process is very fast; wide application range: the spray drying technology is suitable for the production of various products from high-grade synthetic materials to bulk chemicals. By changing the process parameters, complex powders with accurate powder characteristics such as powder size and shape, density, dispersibility, polymorphism, and flow characteristics can be efficiently produced. This feature makes the spray drying technology widely used in food, medicine, and chemical industries; suitable for heat-sensitive materials: in the spray drying process, the material is in direct contact with hot air, but most of the heat is used to evaporate the water in the liquid. The temperature of the material will not exceed the wet bulb temperature of the hot air, so it will not be affected by the high-temperature air. This makes the spray drying technology particularly suitable for drying heat-sensitive materials such as pyrolysis carbon black powder; high degree of automation: the spray drying technology can control the characteristics of the carbon black powder to remain stable through continuous operation, which is beneficial to automatic and continuous production. It is one of the effective methods for large-scale preparation of excellent powders, and has become one of the best methods for ultra-fine and drying of various products.
[0034] The working process of the powder carbon black activation modification spray drying device is as follows:
[0035] The powder carbon black mixed with the modification additive enters the high-speed centrifugal atomizer 102 from the modified powder carbon black feed port 1021. The centrifugal force generated by high-speed rotation converts the liquid material into mist particles. The atomizer rotates at high speed under the drive of the motor. The centrifugal force generated by rotation accelerates the movement of the liquid material on the atomizing disc, and finally atomizes into mist particles at the nozzle. The sprayed mist particles directly contact hot air in the first cavity 1011. During the contact between the fine mist particles and the hot air, most of the water can be evaporated in an instant. Further drying is carried out in the second cavity 1041.
[0036] The technical features of the above-described embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present disclosure.
[0037] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A powder carbon black activation modification spray drying apparatus characterized by, Comprising A combined tower mounting seat, having a first cavity, and a high-temperature flue gas inlet communicating with the first cavity; A high-speed centrifugal atomizer mounted on the combined tower mounting seat, having a modified powder carbon black feed port for input of activated modified powder carbon black, and a nozzle of the high-speed centrifugal atomizer located in the first cavity; A high-temperature flue gas supply assembly connected with the high-temperature flue gas inlet through a high-temperature flue gas output pipeline, for injecting high-temperature flue gas into the first cavity; A material drying tower, comprising a tower body having a second cavity, and a feed guiding part protruding from the tower body to the second cavity and communicating the first cavity and the second cavity, the inner diameter of the feed guiding part increases along the material conveying direction.
2. The powder and carbon black activation modification spray drying apparatus according to claim 1, characterized in that, The tower body has a negative pressure air outlet communicating with the second cavity, and the negative pressure air outlet is connected with a suction port of a high-pressure induced draft fan.
3. The powder and carbon black activation modification spray drying apparatus according to claim 2, characterized in that, A first cyclone dust collector and a bag dust collector are connected in sequence between the negative pressure air outlet of the tower body and the suction port of the high-pressure induced draft fan.
4. The powder and carbon black activation modification spray drying apparatus according to claim 2, characterized in that, A Venturi dust collector is also connected with the gas outlet of the high-pressure induced draft fan, and a second cyclone dust collector is connected with the Venturi dust collector.
5. The powder and carbon black activation modification spray drying apparatus according to claim 1, characterized in that, The combined tower mounting seat is fixedly installed on the top of the tower body of the material drying tower.
6. The powder charcoal activation modification spray drying apparatus according to claim 1, wherein, The tower body of the material drying tower has a straight cylinder part and an inverted cone part below the straight cylinder part.
7. The powder and carbon black activation modification spray drying apparatus according to claim 6, characterized in that, A discharge port is formed at the bottom of the inverted cone part.
8. The powder charcoal activation modification spray drying apparatus according to claim 1, wherein, The high-temperature flue gas supply assembly comprises a warming hot blast furnace and a warming burner connected with the warming hot blast furnace, and the warming hot blast furnace is connected with the high-temperature flue gas inlet through the high-temperature flue gas output pipeline.
9. The powder charcoal activation modification spray drying apparatus according to claim 1, wherein, The powder carbon black activation and modification spray drying equipment is connected with a material stirring tank through a material conveying pipeline, and a pressure feeding pump is arranged on the material conveying pipeline.
10. The powder and carbon black activation modification spray drying apparatus according to claim 9, characterized in that, The material stirring tank has a carbon black powder inlet and a modified activation additive inlet, and the modified activation additive inlet is connected with a modified activation additive storage tank.