A grinding device for producing cracked carbon black

Abstract

The present invention is applicable to the field of cracking carbon black production equipment, and provides a grinding device for cracking carbon black production, including a grinding bin and a collecting bin; a plurality of sub-bins with independent spaces are arranged in the collecting bin; a filter bag is arranged in each sub-bin; the filter bag has an air inlet and an exhaust port corresponding to an axis; the air inlet is connected to a feed pipe; a ventilation port is provided on a side wall of the sub-bin; a sealing disk for sealing the exhaust port is installed at the exhaust port, and a release port is provided on the sealing disk, and when the release port corresponds to the exhaust port, the space in the filter bag is connected to the grinding bin space; when the exhaust port is in a blocked state, the air flow passes through the filter bag and is discharged from the ventilation port; when the exhaust port is in an open state, the filter bag is deformed by the air pressure of the air flow, thereby effectively increasing the coordination between the collection, release and grinding working states of the materials, which not only improves the collection efficiency of the carbon black particles, but also ensures the grinding efficiency of the grinding structure and reduces the loss and waste of the grinding disc.

Description

Technical Field

[0001] The invention relates to the field of cracking carbon black production equipment, and in particular to a grinding device for cracking carbon black production. Background Art

[0002] Carbon black is widely used in our lives and is everywhere. Its application areas mainly include rubber, plastic, ink, coating, etc. Among them, the production process of carbon black is as follows: first, the raw oil is preheated and sprayed into a reactor with a temperature of thousands of degrees. Then, the tiny oil droplets react rapidly under the heat and crack into carbon black particles. The carbon black particles collide with each other and further combine into a chain structure. Then, the carbon black and the hot exhaust gas enter the filter collection bin. The carbon black particles will adhere to the filter bag. After the predetermined amount is collected, the carbon black powder is shaken off to the grinding and crushing equipment for particle homogenization.

[0003] In the existing carbon black production process, the filter collection bin is installed at the entrance of the grinding and crushing equipment. Since the collection and shaking-off processes of the filter collection bin take time, the coordination with the grinding and crushing equipment is poor (carbon black needs to maintain a certain temperature during the grinding process. Therefore, to ensure the grinding efficiency, the grinding and crushing equipment still needs to be in working condition even when the filter collection bin is in the collection process to ensure that the shaken-off carbon black can be ground in time, but this will cause great loss and waste to the grinding disc of the grinding and crushing equipment).

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a grinding device for the production of cracking carbon black, which effectively increases the coordination between the collection, release and grinding working states of the materials, not only improves the collection efficiency of the carbon black particles, but also ensures the grinding efficiency of the grinding structure and reduces the loss and waste of the grinding disc.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a grinding device for the production of cracking carbon black, comprising a grinding bin with a grinding structure therein and a collecting bin arranged at the entrance thereof; a plurality of sub-bins with independent spaces are arranged in the collecting bin; a filter bag with a cylindrical structure and a deformable outer wall is arranged in each sub-bin; the filter bag has an air inlet and an exhaust port corresponding to an axis; the air inlet is connected to a feed pipe; a side wall of the sub-bin has a ventilation port; a sealing disk for sealing the exhaust port is installed at the exhaust port, and a release port is provided on the sealing disk, and when the release port corresponds to the exhaust port, the space in the filter bag is connected to the space in the grinding bin; when the exhaust port is in a blocked state, the airflow passes through the filter bag and is discharged from the ventilation port; when the exhaust port is in an open state, the filter bag is deformed by the air pressure of the airflow.

[0007] According to the grinding device for producing pyrolysis carbon black of the present invention, the deformation process of the filter bag is that the middle position thereof switches between expansion and contraction.

[0008] According to the grinding device for producing pyrolysis carbon black of the present invention, the filter bag comprises a plurality of elastic bands distributed in an annular manner and arranged along an axis, and filter cloths connected with the elastic bands to form a cylindrical structure.

[0009] According to the grinding device for producing pyrolysis carbon black of the present invention, the plurality of sub-chambers are distributed in a ring.

[0010] According to the grinding device for the production of cracking carbon black of the present invention, the sealing disk is a disc-shaped structure, and at least one release port is opened on its disk surface; the sealing disk is rotatably installed between the collecting bin and the grinding bin, and is driven by a driving structure to perform intermittent rotation at equal angles; the rotation angle of the sealing disk is equal to or a multiple of the angle between adjacent exhaust ports.

[0011] According to the grinding device for producing cracked carbon black of the present invention, the grinding structure includes a driving shaft; the driving structure includes an incomplete gear installed on the driving shaft, a gear structure concentrically arranged on the sealing disk, and a connecting gear connecting the two.

[0012] According to the grinding device for producing cracked carbon black of the present invention, an adjusting nozzle for adjusting the inlet gas velocity is installed on the wall of the sub-bin; the spraying direction of the adjusting nozzle is parallel to or coincides with the axial direction of the filter bag.

[0013] According to the grinding device for producing pyrolysis carbon black of the present invention, the grinding structure includes a first grinding disc arranged on the side wall of the grinding chamber and a second grinding disc matched therewith; the second grinding disc is connected to the driver through a driving shaft.

[0014] The present invention provides a grinding device for the production of cracked carbon black, comprising a grinding chamber with a grinding structure and a collecting chamber arranged at the entrance thereof; a plurality of sub-chambers with independent spaces are arranged in the collecting chamber; a filter bag with a cylindrical structure and a deformable outer wall is arranged in each sub-chamber; the filter bag has an air inlet and an air outlet corresponding to an axis; the air inlet is connected to a feed pipe; the side wall of the sub-chamber has a ventilation port; a blocking disk for blocking the exhaust port is installed at the exhaust port, and a release port is arranged on the blocking disk, and when the release port corresponds to the exhaust port, the space in the filter bag is connected to the grinding chamber space; when the exhaust port is in a blocked state, the air flow passes through the filter bag and is discharged from the ventilation port; when the exhaust port is in an open state, the filter bag is deformed by the air pressure of the air flow. The present invention effectively increases the coordination between the collection, release and grinding working states of the material, not only improves the collection efficiency of carbon black particles, but also ensures the grinding efficiency of the grinding structure and reduces the loss and waste of the grinding disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the filter bag of the present invention;

[0018] Figure 4 It is the airflow direction diagram when the collecting bin is in the state of collecting materials;

[0019] Figure 5 It is the airflow direction diagram when the collecting bin is in the material release state;

[0020] Figure 6 is a structural schematic diagram of a blocking disk drive structure;

[0021] Figure 7 yes Figure 6 Structural diagram of incomplete gear;

[0022] Figure 8 It is a structural diagram of the gear structure on the blocking disk;

[0023] In the figure, 1-grinding chamber, 11-driving shaft, 2-collecting chamber, 3-sub-chamber, 31-air inlet, 32-exhaust port, 33-filter bag, 34-elastic belt, 35-filter cloth, 4-sealing plate, 41-release port, 5-ventilation port, 51-incomplete gear, 52-gear structure, 53-connecting gear, 7-adjusting nozzle, 81-first grinding disk, 82-second grinding disk, 83-aggregate groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] See also Figure 1 and Figure 2 The present invention provides a grinding device for producing pyrolysis carbon black, which includes a grinding bin 1 with a grinding structure therein and a collecting bin 2 arranged at the entrance thereof; the collecting bin 2 is arranged above the grinding bin 1 to form a vertical structure, and a material outlet is arranged below the grinding bin 1.

[0026] See also Figure 2 , Figure 3 , Figure 4 and Figure 5, a plurality of sub-bins 3 with independent spaces are arranged in the collecting bin 2, and the sub-bins 3 are spatially blocked by partitions; a filter bag 33 with a cylindrical structure and a deformable outer wall (a plurality of micro-filter holes are provided on the surface of the filter bag 33), and the filter bag 33 is longitudinally installed in the sub-bin 3; the filter bag 33 has an air inlet 31 and an air outlet 32 ​​corresponding to the axis; the air inlet 31 is connected to the feed pipe, and specifically, an adjusting nozzle 7 for adjusting the flow rate of the intake air (high-temperature exhaust gas carrying carbon black) is installed on the bin wall of the sub-bin 3; the spray direction of the adjusting nozzle 7 coincides with or is parallel to the axis direction of the filter bag 33, and in order to ensure uniform driving of the side wall of the filter bag 33 by the air flow (details will be described below), in this embodiment, the spray direction of the adjusting nozzle 7 coincides with the axis direction of the filter bag 33; at the same time, the side wall of the sub-bin 3 has a ventilation port 5, and the ventilation port 5 is connected to the external space.

[0027] See also Figure 2 and Figure 8 A blocking plate 4 is installed at the exhaust port 32 to block it, and the blocking plate 4 is provided with a release port 41. When the release port 41 corresponds to the exhaust port 32, the space inside the filter bag 33 is connected to the space of the grinding chamber 1;

[0028] When the exhaust port 32 is in a blocked state, the blocking disk 4 blocks the exhaust port 32, and the airflow carrying carbon black particles entering from the air inlet 31 is changed in direction by the blocking disk 4, causing the airflow to pass through the filter bag 33. The carbon black particles in the airflow are blocked by the filter bag 33 and continuously accumulate inside it, and the treated airflow is discharged from the ventilation port 5.

[0029] When the exhaust port 32 is in an open state (the release port 41 corresponds to the exhaust port 32), the filter bag 33 is affected by the air pressure and deformed. The deformation process of the filter bag 33 is that the middle position switches between expansion and contraction to form a vibration effect, which will vibrate the carbon black particles attached to the filter bag 33 into the grinding chamber 1 for the next grinding work. The specific structure of the filter bag 33 is that it includes a plurality of elastic bands 34 (rubber bands with high temperature resistance) distributed in an annular manner and arranged along the axis, and a filter cloth 35 connected to the elastic band 34 to form a cylindrical structure. Alternatively, the filter cloth 35 itself can also be made of a material with high elasticity. This application does not limit the above structure.

[0030] In the process of driving the filter bag 33 to deform, the regulating nozzle 7 blows out airflow downward. Since the spraying direction of the regulating nozzle 7 is parallel to or coincides with the axial direction of the filter bag 33, the airflow with a predetermined flow rate quickly passes through the internal space of the filter bag 33 to form a negative pressure (the formation of this negative pressure is due to the Bernoulli principle) and drives the side wall of the filter bag 33 to compress and deform toward the middle. At this time, the elastic structure (elastic band 34 or filter cloth 35) of the filter bag 33 is stretched inward. If the spraying flow rate of the regulating nozzle 7 is adjusted (the flow rate of the regulating nozzle 7 is controlled to switch between high speed and low speed) or the regulating nozzle 7 adopts an intermittent spraying method, the negative pressure in the middle will decrease within a predetermined time period. At this time, the elastic structure of the filter bag 33 rebounds to generate elastic vibration, thereby realizing the shaking-off process of the carbon black particles.

[0031] See also Figure 1 and Figure 2 In this embodiment, in order to ensure the compactness of the structure in the device, the multiple sub-bins 3 of the present application are distributed in an annular manner. The blocking disk 4 is a disc-shaped structure, and at least one release port 41 is provided on its disk surface (the release port 41 in the present application is provided with one). The blocking disk 4 is rotatably installed between the collecting bin 2 and the grinding bin 1, and is driven by a driving structure to perform intermittent rotation at equal angles; the rotation angle of the blocking disk 4 is equal to or in multiple relationship with the angle between the adjacent exhaust ports 32, so as to ensure that the blocking disk 4 can select one to correspond to the exhaust port 32 before and after rotation.

[0032] The grinding structure includes a first grinding disc 81 disposed on the side wall of the grinding chamber 1 and a second grinding disc 82 matched therewith, wherein Figure 2 As shown, the first grinding disc 81 and the second grinding disc 82 form a conical grinding surface, and the upper end surfaces of the first grinding disc 81 and the second grinding disc 82 have a material gathering groove 83 that has a material gathering effect, and the bottom of the material gathering groove 83 is connected to the grinding space; the second grinding disc 82 is connected to the driver (a motor can be used) through the driving shaft 11.

[0033] See also Figure 6 , Figure 7 and Figure 8 , the driving structure includes an incomplete gear 51 mounted on the driving shaft 11, a gear structure 52 concentrically arranged on the blocking disk 4, and a connecting gear 53 connecting the two (the connecting gear 53 is rotatably mounted on the frame). During the transmission process, the driving shaft 11 drives the incomplete gear 51 to rotate continuously. When the toothed portion of the incomplete gear 51 meshes with the connecting gear 53, it will further drive the blocking disk 4 to switch the angle through gear transmission. When the toothless portion of the incomplete gear 51 enters the meshing area with the connecting gear 53, it will not drive the connecting gear 53 to transmit, and further cannot drive the blocking disk 4 to switch the angle.

[0034] The entire working process of the present application is that when in the process of collecting carbon black particles, the exhaust port 32 is in a blocked state, and when the filter bag 33 in a certain sub-bin 3 collects a predetermined amount, the drive shaft 11 drives the release port 41 of the blocking disk 4 to correspond to the exhaust port 32 of the filter bag 33 that needs to be discharged (the other sub-bins 3 are still in the collection state), and then the collected carbon black particles are shaken off to the grinding structure below for the next step of grinding. During the entire working process, the grinding structure can be in a continuous working state, and the material collection and release work of the filter bags 33 in multiple sub-bins 3 is realized by switching the angle of the blocking disk 4, which effectively increases the coordination between the collection, release and grinding working state of the materials between the sub-bins 3, which not only improves the collection efficiency of carbon black particles, but also ensures the grinding efficiency of the grinding structure, and reduces the loss and waste of the grinding disc (greatly reduces the idle time of the grinding disc in the absence of material grinding).

[0035] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A grinding device for producing pyrolysis carbon black, characterized in that: It includes a grinding chamber with a grinding structure inside and a collecting chamber arranged at the entrance thereof; The collecting bin is provided with a plurality of sub-bins with independent spaces; each sub-bin is provided with a filter bag with a cylindrical structure and a deformable outer wall; the filter bag has an air inlet and an air outlet corresponding to the axis; the air inlet is connected to the feed pipe; the side wall of the sub-bin has a ventilation port; A blocking plate is installed at the exhaust port to block it, and a release port is provided on the blocking plate. When the release port corresponds to the exhaust port, the space inside the filter bag is connected to the grinding chamber space; When the exhaust port is in a blocked state, the air flows through the filter bag and is discharged from the ventilation port; When the exhaust port is in an open state, the filter bag is deformed by the air pressure of the air flow; The plurality of sub-bins are distributed in a ring shape; The blocking disk is a disc-shaped structure, and at least one release port is opened on the disk surface; The blocking disk is rotatably installed between the collecting chamber and the grinding chamber, and is driven by a driving structure to perform intermittent rotation at equal angles; The rotation angle of the blocking disk is equal to or a multiple of the angle between adjacent exhaust ports; The grinding structure includes a driving shaft; The driving structure comprises an incomplete gear mounted on the driving shaft, a gear structure coaxially arranged on the sealing disk, and a connecting gear connecting the two.

2. The grinding device for producing pyrolysis carbon black according to claim 1, characterized in that: The deformation process of the filter bag is that the middle position thereof switches between expansion and contraction.

3. The grinding device for producing pyrolysis carbon black according to claim 1 or 2, characterized in that: The filter bag comprises a plurality of elastic bands which are distributed in an annular manner and arranged along an axis, and filter cloths which are connected with the elastic bands and form a cylindrical structure.

4. The grinding device for producing pyrolysis carbon black according to claim 1 or 2, characterized in that: An adjusting nozzle for adjusting the inlet gas velocity is installed on the wall of the sub-bin; the spraying direction of the adjusting nozzle is parallel to or coincides with the axial direction of the filter bag.

5. The grinding device for producing pyrolysis carbon black according to claim 1, characterized in that: The grinding structure includes a first grinding disc arranged on the side wall of the grinding chamber and a second grinding disc matched therewith; The second grinding disc is connected to the driver via a driving shaft.

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