Powder removing device for granular carbon black

Abstract

The utility model relates to the technical field of granular carbon black preparation, in particular to a granular carbon black powder removing device which comprises a first conveying pipeline, a first air draft component, a second conveying pipeline, a stock bin, a third conveying pipeline and a second air draft component. The first air draft component is communicated with a feeding hole of the stock bin through a second conveying pipeline; in the height direction of the stock bin, a powdery carbon black discharge port is formed in the upper part of the stock bin, and a granular carbon black discharge port is formed in the lower part of the stock bin; and the second air draft component is communicated with the powdery carbon black discharge hole through a second conveying pipeline. When the powder removing device for the granular carbon black is used, the granular carbon black mixed with the powdery carbon black can be blown away through air blowing, then the light powdery carbon black is pumped away through air draft, the granular carbon black and the light powdery carbon black are well separated, the product quality is better guaranteed, particularly, the pumped-away powdery carbon black can be recycled and granulated, the carbon black is not wasted, and it is guaranteed that the yield is not reduced.

Description

Technical Field

[0001] The present application relates to the technical field of granular carbon black preparation, and in particular to a granular carbon black powder removal device. Background Art

[0002] Currently, granular carbon black is produced by pelletizing powdered carbon black and pure water in a pelletizer. After pelletization, the granules are dried by heating them with clean air from a hot air furnace. A fan then delivers the granules to a silo for packaging. However, during the pelletizing process, collisions between granules and the drying process can easily break the granules, producing powdered carbon black. This can lead to excessively high powder content, compromising the granules' usability and, in severe cases, causing substandard granules. Utility Model Content

[0003] The purpose of this application is to provide a powder removal device for granular carbon black, which to a certain extent solves the technical problems in the prior art that during the granulation process, the collision between the granules and the drying process easily cause the granular carbon black to break and produce powdered carbon black, resulting in an excessively high powder content of the granular carbon black, affecting the use of the granular carbon black, and even worse, causing the granular carbon black product to be unqualified.

[0004] The present application provides a granular carbon black powder removal device, comprising: a first conveying pipeline, a first exhaust component, a second conveying pipeline, a silo, a third conveying pipeline, and a second exhaust component; wherein the first exhaust component is connected to the discharge port of a granulator via the first conveying pipeline; the first exhaust component is connected to the feed port of the silo via the second conveying pipeline, and the first exhaust component is used to extract the granular carbon black mixed with powdered carbon black discharged from the granulator and convey it to the silo;

[0005] Along the height direction of the silo, a powdered carbon black discharge port is formed at the upper part of the silo, and a granular carbon black discharge port is formed at the lower part of the silo; the second exhaust component is connected to the powdered carbon black discharge port via the third conveying pipeline, and the second exhaust component is used to extract the powdered carbon black out of the silo through the powdered carbon black discharge port.

[0006] In the above technical solution, further, the powder removal device of the granular carbon black also includes a feed pipe, which is arranged in the silo, and one end of the feed pipe is located outside the silo, and the other end of the feed pipe extends to the inside of the silo, and the channel of the feed pipe is formed as the feed port.

[0007] In any of the above technical solutions, further, along the height direction of the silo, the feed pipe is installed at the lower part of the silo, and the feed pipe extends toward the upper part of the silo.

[0008] In any of the above technical solutions, further, the powdered carbon black discharge port is arranged on the side of the silo.

[0009] In any of the above technical solutions, further, there are multiple powdered carbon black discharge ports, which are evenly arranged in sequence along the outer circumference of the silo.

[0010] In any of the above technical solutions, further, along the height direction of the silo and from top to bottom, the lower part of the silo is in a gradually shrinking funnel shape.

[0011] In any of the above technical solutions, further, along the height direction of the silo, the granular carbon black discharge port is formed at the bottom of the silo.

[0012] In any of the above technical solutions, further, the granular carbon black powder removal device also includes a mesh filter, and an exhaust port is formed on the top of the silo along the height direction of the silo, and the mesh filter is installed at the exhaust port.

[0013] In any of the above technical solutions, further, the first air exhaust component is a blower.

[0014] In any of the above technical solutions, further, the second air exhaust component is an air exhaust fan.

[0015] In any of the above technical solutions, further, the powder removal device for the granular carbon black also includes a fourth conveying pipeline, a filter and a fifth conveying pipeline; wherein, the second exhaust component is connected to the inlet end of the filter via the fourth conveying pipeline, and is used to extract the powdered carbon black discharged from the silo and convey it to the filter; the outlet end of the filter is connected to the feed port of the granulator via the fifth conveying pipeline, and the filter is used to filter the mixture of powdered carbon black and air.

[0016] In any of the above technical solutions, further, the powder removal device for the granular carbon black also includes a receiving hopper, which is arranged below the outlet end of the filter, and the outlet end of the receiving hopper is connected to the fifth conveying pipeline, and the receiving hopper is used to receive the filtered powdered carbon black discharged from the outlet port of the filter.

[0017] In any of the above technical solutions, further, the filter is formed with a compressed air inlet and a venting outlet.

[0018] In any of the above technical solutions, further, a discharge valve is provided at the outlet end of the filter, and is used to control the opening or closing of the outlet end of the filter.

[0019] In any of the above technical solutions, further, the powder removal device for granular carbon black also includes a level meter, and the level meter is installed on the filter and is used to detect the position of the filtered powdered carbon black in the filter.

[0020] In any of the above technical solutions, further, the filter is a bag filter.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] When in use, the powder removal device for granular carbon black provided in the present application can blow away the granular carbon black mixed with powdered carbon black by blowing air, and then extract the lighter powdered carbon black by exhausting air, so that they are well separated and the product quality is more guaranteed. In particular, the powdered carbon black that is extracted can be recycled and granulated again, so that carbon black is not wasted and the output is ensured not to be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic structural diagram of a granular carbon black powder removal device provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1-first conveying pipeline, 2-first exhaust component, 3-second conveying pipeline, 4-feeding pipe, 41-inclined pipe portion, 42-vertical pipe portion, 5-material silo, 51-granular carbon black discharge port, 52-powdered carbon black discharge port, 53-mesh filter, 6-third conveying pipeline, 7-second exhaust component, 8-fourth conveying pipeline, 9-filter, 91-compressed air inlet, 92-vent outlet, 93-discharge valve, 94-level meter, 10-receiving hopper, 11-fifth conveying pipeline. DETAILED DESCRIPTION

[0027] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0029] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] Refer to the following Figure 1 The present invention describes a device for removing powder from granular carbon black according to some embodiments of the present application.

[0033] See also Figure 1 As shown, an embodiment of the present application provides a granular carbon black powder removal device, comprising: a first conveying pipeline 1, a first exhaust member 2, a second conveying pipeline 3, a silo 5, a third conveying pipeline 6, and a second exhaust member 7; wherein the first exhaust member 2 is connected to the discharge port of the granulator through the first conveying pipeline 1; the first exhaust member 2 is connected to the feed port of the silo 5 through the second conveying pipeline 3, and the first exhaust member 2 is used to extract the granular carbon black mixed with powdered carbon black discharged from the granulator and convey it to the silo 5;

[0034] Along the height direction of the silo 5, a powdered carbon black discharge port 52 is formed at the upper part of the silo 5, and a granular carbon black discharge port 51 is formed at the lower part of the silo 5; the second exhaust component 7 is connected to the powdered carbon black discharge port 52 via the third conveying pipeline 6, and the second exhaust component 7 is used to extract the powdered carbon black out of the silo 5 through the powdered carbon black discharge port 52.

[0035] According to the structure described above, granular carbon black (including powdered carbon black) is transported into the hopper 5 by the first exhaust component 2 through the granular carbon black pipeline, i.e. the first conveying pipeline 1 and the second conveying pipeline 3. The granular carbon black and powdered carbon black entering the hopper 5 are lifted up. Due to the different densities, the granular carbon black falls to the granular carbon black discharge port 51 at the bottom and is discharged. The powdered carbon black passes through the powdered carbon black discharge port 52 and is extracted by the second exhaust component 7 through the powdered carbon black extraction pipeline, i.e. the third conveying pipeline 6. The extracted powdered carbon black can also be returned to the granulator for reuse to ensure that the output is not reduced. Of course, the extracted powdered carbon black may not be returned to the granulator, and the specific selection depends on actual needs.

[0036] It can be seen that the granular carbon black mixed with powdered carbon black discharged from the granulator can be separated by the powder removal device of the granular carbon black to form clean granular carbon black, and then transported to the next process, which helps to improve the qualified rate of the final product. In particular, the powdered carbon black that is extracted can be recycled for granulation, so as not to waste carbon black and ensure that the output is not reduced.

[0037] In this embodiment, preferably, Figure 1 As shown, the powder removal device for granular carbon black also includes a feed pipe 4, which is arranged in the silo 5, and one end of the feed pipe 4 is located outside the silo 5, and the other end of the feed pipe 4 extends to the inside of the silo 5, and the channel of the feed pipe 4 is formed as a feed port.

[0038] According to the structure described above, the feed pipe 4 is a pipe with a certain length. Therefore, after being installed on the silo 5, one end thereof is exposed outside the silo 5, and the other end thereof can extend into the silo 5, thereby transporting the granular carbon black mixed with powdered carbon black to the interior of the silo 5.

[0039] In this embodiment, preferably, Figure 1 As shown, along the height direction of the silo 5 , the feed pipe 4 is installed at the lower part of the silo 5 , and the feed pipe 4 extends toward the upper part of the silo 5 .

[0040] According to the structure described above, it can be known that by utilizing the feed pipe 4 having the aforementioned structure, the granular carbon black mixed with powdered carbon black can be lifted at the upper part of the silo 5, thereby having sufficient height and time, and a large lifting and dispersion space, so that the granular carbon black and powdered carbon black are fully separated. That is to say, due to the different densities, the granular carbon black quickly falls to the granular carbon black discharge port 51 for discharge, and the powdered carbon black is discharged through the powdered carbon black discharge port 52.

[0041] Furthermore, preferably, when the lower portion of the silo 5 is funnel-shaped, the feed pipe 4 includes an inclined pipe portion 41 and a vertical pipe portion 42 connected to each other, and the two are arranged at an obtuse angle. Of course, the structure of the silo 5 and the feed pipe 4 is not limited to the above.

[0042] In this embodiment, preferably, Figure 1 As shown, the powdered carbon black discharge port 52 is arranged on the side of the silo 5.

[0043] According to the structure described above, arranging the powdered carbon black discharge port 52 on the side of the silo 5 is conducive to rapid discharge, and the space on the side of the silo 5 is larger and less likely to interfere with other components.

[0044] It should be noted that the powdered carbon black discharge port 52 is not limited to being arranged at the side of the silo 5, but can also be arranged at a position such as the top of the silo 5, depending on actual needs.

[0045] In this embodiment, preferably, Figure 1 As shown, there are multiple powdered carbon black discharge ports 52 , which are evenly arranged in sequence along the outer circumference of the silo 5 .

[0046] According to the structure described above, it can be seen that a plurality of evenly distributed powdered carbon black discharge ports 52 are provided on the periphery of the silo 5, which helps to quickly discharge the powdered carbon black and improve production efficiency.

[0047] Of course, the number of powdered carbon black discharge ports 52 is not limited to multiple, and can also be one, etc. Moreover, when the number of powdered carbon black discharge ports 52 is multiple, they are not limited to being arranged evenly, and can also be arranged randomly.

[0048] In this embodiment, preferably, Figure 1 As shown, along the height direction of the silo 5 , the granular carbon black discharge port 51 is formed at the bottom of the silo 5 .

[0049] According to the structure described above, it can be seen that the granular carbon black discharge port 51 is arranged at the bottom of the silo 5, so that the separated granular carbon black can be discharged quickly.

[0050] Of course, the granular carbon black discharge port 51 is not limited to being set at the bottom of the silo 5, but can also be set at other positions at the lower part of the silo 5. For example, the granular carbon black discharge port 51 can be set at other positions at the bottom of the silo 5, or the granular carbon black discharge port 51 can also be set on the side wall of the lower part of the silo 5, etc., and the specific selection is based on actual needs.

[0051] In this embodiment, preferably, Figure 1 As shown, the powder removal device for granular carbon black further includes a mesh filter 53. An exhaust port is formed at the top of the silo 5 along the height direction of the silo 5, and the mesh filter 53 is installed at the exhaust port.

[0052] According to the structure described above, the air mixed with dust and having a lower density can be further filtered through the filter 53 at the top of the silo 5, and then the clean air can be discharged.

[0053] In this embodiment, preferably, Figure 1 As shown, the powder removal device for granular carbon black also includes a fourth conveying pipeline 8, a filter 9 and a fifth conveying pipeline 11; wherein, the second exhaust member 7 is connected to the inlet end of the filter 9 via the fourth conveying pipeline 8, and is used to extract the powdered carbon black discharged from the silo 5 and convey it to the filter 9; the outlet end of the filter 9 is connected to the feed port of the granulator via the fifth conveying pipeline 11, and the filter 9 is used to filter the mixture of powdered carbon black and air, thereby realizing the recovery of powdered carbon black.

[0054] Further, preferably, Figure 1 As shown, the powder removal device for granular carbon black also includes a receiving hopper 10, which is arranged below the outlet end of the filter 9, and the outlet end of the receiving hopper 10 is connected to the fifth conveying pipeline 11. The receiving hopper 10 is used to receive the filtered powdered carbon black discharged from the outlet of the filter 9.

[0055] According to the structure described above, granular carbon black (including powder) is transported into the hopper 5 by the first exhaust component 2 through the granular carbon black pipeline, namely the first conveying pipeline 1 and the second conveying pipeline 3. The granular carbon black and powdered carbon black entering the hopper 5 are lifted up. Due to the different densities, the granular carbon black falls to the granular carbon black discharge port 51 at the bottom and is discharged. The powdered carbon black passes through the powdered carbon black discharge port 52 and is extracted by the second exhaust component 7 through the powdered carbon black extraction pipeline, namely the third conveying pipeline 6, and is then transported to the filter 9 by the fourth conveying pipeline 8 for filtration again. The filtered powdered carbon black passes through the outlet end of the filter 9 and falls into the receiving hopper 10, which plays a certain buffering role, and is finally transported back to the granulator by the fifth conveying pipeline 11 for recycling and reuse.

[0056] Further, preferably, the filter 9 is a bag filter, which can effectively filter out various particulate matter in the air, can effectively remove some fine particles, and purify the air. Of course, it is not limited to the above-mentioned bag filter, and other types of filters can also be selected.

[0057] It should be noted that the receiving hopper 10 may not be provided between the filter 9 and the fifth conveying pipeline 11, but the fifth conveying pipeline 11 may be directly connected to the discharge port of the filter 9, and the specific selection is made according to actual needs.

[0058] In addition, the present device may not be equipped with structures such as the fourth conveying pipeline 8, the filter 9, the receiving hopper 10 and the fifth conveying pipeline 11, but only include the aforementioned first conveying pipeline 1, the first exhaust component 2, the second conveying pipeline 3, the silo 5, the third conveying pipeline 6 and the second exhaust component 7. In other words, the outlet end of the second exhaust component 7 can be connected to the feed port of the granulator via a pipeline, etc., and the specific selection is based on actual needs.

[0059] In this embodiment, preferably, Figure 1 As shown, the filter 9 is formed with a compressed air inlet 91 and an exhaust outlet 92 .

[0060] According to the structure described above, a compressed air pipeline can be installed on the compressed air inlet 91, and the compressed air back-blowing filter cloth of the bag filter 9 can be controlled by a pulse valve. In addition, the separated clean gas can be discharged through the vent pipeline connected to the vent outlet 92.

[0061] In this embodiment, preferably, Figure 1 As shown, a discharge valve 93 is provided at the outlet end of the filter 9 and is used to control the opening or closing of the outlet end of the filter 9 .

[0062] According to the structure described above, it can be seen that the discharge valve 93 is installed at the outlet end of the filter 9 to effectively control the discharge of the material.

[0063] In this embodiment, preferably, Figure 1 As shown, the powder removal device for granular carbon black further includes a material level meter 94 , and the material level meter 94 is installed on the filter 9 for detecting the position of the material in the filter 9 and for detecting the position of the filtered powdered carbon black in the filter 9 .

[0064] According to the structure described above, it can be seen that the position of the powdered carbon black in the filter 9 can be detected by using the level meter 94.

[0065] In this embodiment, preferably, Figure 1 As shown, the first exhaust component 2 is a blower, which can lift the granular carbon black mixed with powdered carbon black to facilitate separation by taking advantage of density differences. Of course, it is not limited to this and can also be other types of blowers.

[0066] In this embodiment, preferably, Figure 1 As shown, the second exhaust component 7 is an exhaust fan, which can extract the powdered carbon black from the silo 5. Of course, it is not limited to this and can also be other types of fans.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A granular carbon black powder removal device, characterized in that: include: a first conveying pipeline, a first exhaust component, a second conveying pipeline, a silo, a third conveying pipeline, and a second exhaust component; wherein the first exhaust component is connected to the discharge port of the granulator through the first conveying pipeline; the first exhaust component is connected to the feed port of the silo through the second conveying pipeline, and the first exhaust component is used to extract the granular carbon black mixed with powdered carbon black discharged from the granulator and convey it to the silo; Along the height direction of the silo, a powdered carbon black discharge port is formed at the upper part of the silo, and a granular carbon black discharge port is formed at the lower part of the silo; the second exhaust component is connected to the powdered carbon black discharge port via the third conveying pipeline, and the second exhaust component is used to extract the powdered carbon black out of the silo through the powdered carbon black discharge port.

2. The granular carbon black powder removal device according to claim 1, characterized in that: The powder removal device for granular carbon black also includes a feed pipe, which is arranged in the silo, and one end of the feed pipe is located outside the silo, the other end of the feed pipe extends to the inside of the silo, and the channel of the feed pipe is formed as the feed port.

3. The granular carbon black powder removal device according to claim 2, characterized in that: The feed pipe is installed at the lower part of the silo along the height direction of the silo, and the feed pipe extends toward the upper part of the silo.

4. The granular carbon black powder removal device according to claim 1, characterized in that: The powdered carbon black discharge port is arranged on the side of the silo.

5. The granular carbon black powder removal device according to claim 4, characterized in that: The powdered carbon black discharge ports are multiple and are evenly arranged in sequence along the outer circumference of the silo.

6. The granular carbon black powder removal device according to claim 1, characterized in that: Along the height direction of the silo and from top to bottom, the lower part of the silo is in a gradually shrinking funnel shape; and / or Along the height direction of the silo, the granular carbon black discharge port is formed at the bottom of the silo.

7. The granular carbon black powder removal device according to claim 1, characterized in that: The granular carbon black powder removal device further comprises a screen filter, an exhaust port is formed at the top of the silo along the height direction of the silo, and the screen filter is installed at the exhaust port; and / or The first air extraction component is a blower; and / or The second air exhaust component is an air exhaust fan.

8. The granular carbon black powder removal device according to any one of claims 1 to 7, characterized in that: The powder removal device for granular carbon black also includes a fourth conveying pipeline, a filter and a fifth conveying pipeline; wherein, the second exhaust component is connected to the inlet end of the filter via the fourth conveying pipeline, and is used to extract the powdered carbon black discharged from the silo and convey it to the filter; the outlet end of the filter is connected to the feed port of the granulator via the fifth conveying pipeline, and the filter is used to filter the mixture of powdered carbon black and air.

9. The granular carbon black powder removal device according to claim 8, characterized in that: The powder removal device for granular carbon black also includes a receiving hopper, which is arranged below the outlet end of the filter, and the outlet end of the receiving hopper is connected to the fifth conveying pipeline. The receiving hopper is used to receive the filtered powdered carbon black discharged from the outlet of the filter.

10. The granular carbon black powder removal device according to claim 8, characterized in that: The filter is formed with a compressed air inlet and a vent outlet; and / or The outlet of the filter is provided with a discharge valve, which is used to control the opening or closing of the outlet of the filter; and / or The granular carbon black powder removal device further comprises a material level meter, and the material level meter is installed on the filter and is used to detect the position of the filtered powdered carbon black in the filter; and / or The filter is a bag filter.

Images