An acetylene carbon black drying device with dust removal function

Abstract

This utility model discloses an acetylene carbon black drying device with dust removal function, including a drying shell, a feeder at one end of the drying shell, a frame for support at the bottom of the drying shell, a tubular shell structure, a drying auger inside the drying shell, and a power component connected to the drying auger on one side of the drying shell. This utility model relates to the technical field of carbon black processing equipment. This acetylene carbon black drying device with dust removal function integrates a labyrinth-style interlaced layered cotton felt filter mesh at the drying exhaust outlet. The labyrinth-style interlaced layered structure greatly increases the contact opportunity and residence time between dust and the filter medium, significantly improving dust removal efficiency and effectively preventing powder from escaping into the external environment. It efficiently intercepts acetylene carbon black powder escaping during the drying process, solving the problems of powder scattering and polluting the environment and harming health caused by traditional hot air drying. At the same time, it has a compact structure and is easy to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of carbon black processing equipment, specifically to an acetylene carbon black drying device with dust removal function. Background Technology

[0002] Acetylene black is carbon black obtained by continuously pyrolyzing acetylene with a purity of over 99%, which is obtained by decomposing and refining acetylene, a byproduct of the pyrolysis of naphtha or crude gasoline. Due to its excellent electrical conductivity and liquid absorption properties, acetylene black is often used as a negative electrode material in nickel-metal hydride batteries, in conjunction with oxide separators and electrolytes.

[0003] During the preparation of acetylene black, the acetylene black contains some moisture. Moisture hinders the contact between carbon black particles, reduces conductivity, causes carbon black to clump, affects uniform dispersion in rubber or plastics, and promotes microbial growth or chemical reactions, shortening the product's shelf life. Therefore, it is necessary to remove moisture from the acetylene black. Common drying equipment mainly uses hot air drying. However, since acetylene black is in powder form, it is very easy for powder to be blown away by the hot air during the hot air drying process. Long-term use can easily lead to dust accumulation on the equipment and harm to the health of workers. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an acetylene carbon black drying device with dust removal function, thus solving the existing background technology problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an acetylene carbon black drying device with dust removal function, including a drying shell, a feeder is provided at one end of the drying shell, the bottom of the drying shell is supported by a frame, the drying shell is a tubular shell, a drying auger is provided inside the drying shell, and a power component is provided on one side of the drying shell, the power component is connected to the drying auger;

[0006] The dryer shell is provided with an exhaust port on one side corresponding to the power component. A hot air conveyor is provided on one end of the dryer shell corresponding to the exhaust port. A dust removal control box is provided on the top of the exhaust port. The dust removal control box is a rectangular cavity shell that is connected to the exhaust port. A dust removal control component is provided on the dust removal control box.

[0007] The dust removal control component includes a slot. A slot is provided on one side of the dust removal control box. A dust removal mesh is inserted into the slot. The dust removal mesh is a rectangular frame structure plate. Several pairs of layered plates are staggered on the inner two side walls of the dust removal mesh. The layered plates are arranged in a linear array on one side wall of the dust removal mesh. Several cotton felt layers are provided on the layered plates.

[0008] Preferably, the dryer housing has a cylindrical cavity at its center, and the drying auger fits against the wall of the cavity inside the dryer housing.

[0009] Preferably, a flange is provided at the top of the drain port, and an induced draft fan is connected to the flange.

[0010] Preferably, the width of several layered plates on one side wall of the dust removal grid gradually decreases from top to bottom, while the width of several layered plates on the corresponding side wall gradually increases from top to bottom.

[0011] Preferably, the slot is a rectangular groove, the dust removal mesh is separately connected to the slot by screws, and the upper and lower ends of the dust removal mesh are connected.

[0012] Preferably, the power assembly includes a power motor, one side of which is connected to a gearbox, which is connected to the end of the drying auger via a coupling.

[0013] This invention provides an acetylene black drying device with dust removal function. It offers the following advantages: This acetylene black drying device with dust removal function integrates a labyrinthine-style interlaced layered cotton felt filter mesh at the drying exhaust outlet. The labyrinthine-style interlaced layered structure greatly increases the contact opportunity and residence time between dust and the filter medium, significantly improving dust removal efficiency and effectively preventing powder from escaping into the external environment. It efficiently intercepts acetylene black powder that escapes during the drying process, solving the problems of powder dispersion, environmental pollution, and health hazards associated with traditional hot air drying. Furthermore, it has a compact structure and is easy to maintain. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional structural diagram of an acetylene carbon black drying device with dust removal function according to the present invention.

[0015] Figure 2 This is a second three-dimensional structural diagram of an acetylene carbon black drying device with dust removal function according to the present invention.

[0016] Figure 3 This is a partial cross-sectional view of the acetylene carbon black drying device with dust removal function described in this utility model.

[0017] In the diagram: 1. Dryer casing; 2. Feeder; 3. Drying auger; 4. Power unit; 5. Drain outlet; 6. Hot air conveyor; 7. Dust removal control box; 8. Exhaust fan; 41. Power motor; 42. Gearbox; 43. Coupling; 71. Dust removal grid; 72. Layered plate; 73. Cotton felt layer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides an implementation scheme: During the preparation of acetylene black, the acetylene black contains some moisture, which needs to be removed. Common drying equipment mainly uses hot air drying, but acetylene black is in powder form. During the hot air drying process, the powder is very easy to be scattered to the outside with the hot air, which can easily lead to dust accumulation on the equipment and harm to the health of workers with long-term use.

[0020] To address the aforementioned issues of powder dispersion and environmental pollution, this application discloses an acetylene black drying device with dust removal function, comprising a main drying container, a dryer shell 1, which is a tubular shell structure with a frame at its bottom for stability. A feeder 2 is provided at one end of the dryer shell 1 to feed the acetylene black powder containing water into the dryer shell 1. A cylindrical cavity is provided in the center of the dryer shell 1, and a core conveying and stirring component, a drying auger 3, is provided inside. The drying auger 3 is in close contact with the wall of the cavity inside the dryer shell 1 to ensure that the material is effectively propelled and stirred. A power component 4 is provided on one side of the dryer shell 1, which is connected to the drying auger 3 to provide it with rotational power.

[0021] A drain port 5 is provided on one side of the dryer housing 1 corresponding to the power component 4, which is used to discharge the hot and humid exhaust gas and powder that may be entrained during the drying process. A hot air conveyor 6 is provided on one end of the dryer housing 1 corresponding to the drain port 5. The hot air conveyor 6 adopts a hot air furnace or an electric heating blower to transport hot drying air into the dryer housing 1. A dust removal control box 7 is provided on the top of the drain port 5. The dust removal control box 7 is a rectangular cavity shell that is connected to the drain port 5 and is responsible for treating the dust-containing exhaust gas. The dust removal control box 7 is equipped with the core dust removal control component to achieve efficient dust removal.

[0022] According to the instruction manual Figure 1-3It is known that the above-mentioned dust removal control component includes a slot. A slot is provided on one side of the dust removal control box 7. A dust removal mesh 71 is inserted into the slot. The dust removal mesh 71 is a rectangular frame structure plate with its upper and lower ends open to allow airflow. Several pairs of layered plates 72 are staggered on the inner two side walls of the dust removal mesh 71. That is, the layered plates 72 on the left side wall and the layered plates 72 on the right side wall are staggered in the height direction and are not directly opposite each other. Several layered plates 72 are arranged in a linear array on one side wall of the dust removal mesh 71. Several cotton felt layers 73 are provided on several layered plates 72 as the core filter medium. After the dust-laden exhaust gas enters the dust removal control box 7 from the exhaust port 5, it must flow through this dust removal mesh 71.

[0023] Workflow: Wet acetylene black powder enters the feed end of the dryer shell 1 through the feeder 2. The power unit 4 drives the drying auger 3 to rotate, pushing the material towards the discharge end and continuously agitating it. The hot air conveyor 6 sends hot air into the dryer shell 1, where the hot air contacts the wet powder in a counter-current or parallel flow, removing moisture and drying it. The dried powder is discharged and collected from the end of the dryer shell 1. The humid and hot exhaust gas containing water vapor and a small amount of loose powder rises through the exhaust port 5 into the dust collection control box 7. After entering the dust collection control box 7, the exhaust gas first impacts the dust collector... On the dust grid 71, the exhaust gas is forced to flow through the labyrinthine channels formed by the staggered layered plates 72. When flowing through these channels, the exhaust gas must change direction multiple times. The cotton felt layer 73 on the layered plates 72 provides a huge filtration surface area. When the dust-laden exhaust gas comes into contact with the cotton felt layer 73 and changes its flow direction, the tiny acetylene black powder it carries is efficiently intercepted and adsorbed by the cotton felt layer 73. After being filtered by multiple layers of staggered layered plates 72 and cotton felt layer 73, the dust in the exhaust gas is greatly removed, and the purified gas is discharged from the top of the dust removal grid 71.

[0024] As a preferred option, the dryer housing 1 is further provided with a cylindrical cavity in the center, and the drying auger 3 fits snugly against the inner wall of the cavity. This design ensures that the gap between the blade edges of the drying auger 3 and the inner wall of the housing is minimal. This effectively propels the material and prevents accumulation, while also creating a certain degree of compression and agitation, increasing the contact area between the material and the hot air, improving drying efficiency, and reducing material residue on the wall surface.

[0025] As a preferred option, a flange is provided on the top of the exhaust port 5, and an induced draft fan 8 is connected to the flange. The function of the induced draft fan 8 is to form a stable negative pressure in the exhaust port 5 and the dust removal control box 7, actively sucking up the humid and hot dust-laden exhaust gas generated in the dryer shell 1, ensuring that the exhaust gas smoothly enters the dust removal system for treatment, and maintaining an appropriate airflow speed in the dryer shell 1.

[0026] As a preferred option, furthermore, the width of several layered plates 72 on one side wall of the dust collection grid 71 gradually decreases from top to bottom, while the width of several layered plates 72 on the corresponding side wall gradually increases from top to bottom. The function of this asymmetrical gradual width design is that when the exhaust gas flows upward from the bottom of the dust collection grid 71, the cross-sectional area of ​​the channel will change regularly with the upward direction of the airflow. This change can optimize the airflow distribution, reduce the accumulation of dust in specific areas, guide the airflow to contact all the cotton felt layers 73 surfaces more fully, improve the uniformity of filtration efficiency, and may help the stable adhesion of the captured dust.

[0027] As a preferred option, the slot is a rectangular groove, and the dust removal mesh 71 is connected to the slot separately by screws. The upper and lower ends of the dust removal mesh 71 are open, the slot provides precise installation positioning for the dust removal mesh 71, and the screws allow the dust removal mesh 71 to be easily pulled out of the slot as a whole, which is convenient for cleaning, replacing or regenerating the clogged cotton felt layer 73.

[0028] As a preferred embodiment, the power assembly 4 further includes a power motor 41, with a gearbox 42 connected to one side of the power motor 41. The gearbox 42 is connected to the end of the drying auger 3 via a coupling 43. The power motor 41 provides the initial rotational power. In practice, the gearbox 42 typically functions to reduce speed and increase torque, converting the high-speed, low-torque output of the motor into the low-speed, high-torque output required by the drying auger 3 to meet the needs of material conveying and mixing. The coupling 43 connects the output shaft of the gearbox 42 to the shaft end of the drying auger 3, transmitting torque and allowing for a certain degree of installation error.

[0029] In summary, this acetylene black drying device with dust removal function integrates a labyrinthine interlaced layered cotton felt filter mesh at the drying exhaust outlet. The labyrinthine interlaced layered structure greatly increases the contact opportunities and residence time between dust and the filter media, significantly improving dust removal efficiency and effectively preventing powder from escaping into the external environment. It efficiently intercepts acetylene black powder that escapes during the drying process, solving the problems of powder scattering and polluting the environment and harming health caused by traditional hot air drying. At the same time, it has a compact structure and is easy to maintain.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An acetylene carbon black drying device with dust removal function, comprising a drying shell (1), wherein a feeder (2) is provided at one end of the drying shell (1), the bottom of the drying shell (1) is supported by a frame, and the drying shell (1) is a tubular shell structure, characterized in that, A drying auger (3) is provided inside the dryer housing (1), and a power assembly (4) is provided on one side of the dryer housing (1). The power assembly (4) is connected to the drying auger (3). The dryer housing (1) is provided with an exhaust port (5) on one side corresponding to the power component (4). A hot air conveyor (6) is provided on one end of the dryer housing (1) corresponding to the exhaust port (5). A dust removal control box (7) is provided on the top of the exhaust port (5). The dust removal control box (7) is a rectangular cavity shell connected to the exhaust port (5). A dust removal control component is provided on the dust removal control box (7). The dust removal control component includes a slot. The dust removal control box (7) has a slot on one side. A dust removal mesh (71) is inserted into the slot. The dust removal mesh (71) is a rectangular frame structure plate. Several pairs of layered plates (72) are arranged alternately on the inner two side walls of the dust removal mesh (71). The several layered plates (72) are arranged in a linear array on one side wall of the dust removal mesh (71). Several cotton felt layers (73) are provided on the several layered plates (72).

2. The acetylene black drying device with dust removal function according to claim 1, characterized in that, The dryer housing (1) has a cylindrical cavity in the center, and the drying auger (3) is in contact with the inner cavity wall of the dryer housing (1).

3. The acetylene carbon black drying device with dust removal function according to claim 2, characterized in that, A flange is provided on the top of the drain port (5), and an induced draft fan (8) is connected to the flange.

4. The acetylene carbon black drying device with dust removal function according to claim 3, characterized in that, The width of several layered plates (72) on one side wall of the dust removal grid (71) gradually decreases from top to bottom, while the width of several layered plates (72) on the corresponding side wall gradually increases from top to bottom.

5. The acetylene carbon black drying device with dust removal function according to claim 4, characterized in that, The slot is a rectangular groove, and the dust removal mesh (71) is connected to the slot separately by screws. The upper and lower ends of the dust removal mesh (71) are connected.

6. The acetylene carbon black drying device with dust removal function according to claim 5, characterized in that, The power assembly (4) includes a power motor (41), and a gearbox (42) is connected to one side of the power motor (41). The gearbox (42) is connected to the end of the drying auger (3) via a coupling (43).

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