Energy-saving carbon black rotary kiln

Abstract

This utility model discloses an energy-saving rotary kiln for carbon black, including a rotary kiln body, a kiln tail smoke chamber, a kiln head, and a carbon black interception box. A kiln tail seal is installed on one side of the kiln tail smoke chamber. One end of the rotary kiln body is installed inside the kiln tail seal, and the other end of the rotary kiln body is connected and installed on one side of the kiln head. A waste heat recovery pipe is installed between the kiln tail smoke chamber and the kiln head, and a negative pressure fan is installed on the waste heat recovery pipe. The carbon black interception box is installed connected to the waste heat recovery pipe, and an installation block is fixedly installed on the inner wall of the carbon black interception box. An installation frame is installed abutting below the installation block, and an interception filter is fixedly installed in the center of the installation frame. Beneficial effects: This utility model, with its rotary kiln body, kiln tail smoke chamber, kiln head, installation base plate, and carbon black interception box, can effectively prevent the recovered waste heat air from containing carbon black materials. This not only improves the energy-saving effect of the rotary kiln but also reduces the waste of carbon black materials, making it more practical.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln technology, and more specifically, to an energy-saving carbon black rotary kiln. Background Technology

[0002] Carbon black is an important industrial raw material, widely used in rubber, plastics, inks, coatings, cosmetics and other fields. There are many methods for preparing carbon black, the most common of which is pyrolysis, which decomposes carbonaceous raw materials such as natural gas and petroleum at high temperatures to produce carbon black. This method has the advantages of high production efficiency and low cost, and therefore requires the use of a carbon black rotary kiln to prepare carbon black.

[0003] The prior art discloses an energy-saving rotary kiln for drying carbon black granules, application number CN201921798353.5. Although this utility model can utilize an exhaust fan and connecting pipe to transfer the air containing residual heat in the first exhaust channel to the residual heat end, thereby achieving secondary utilization of heat energy and reducing the high-temperature heating energy consumption of the carbon black rotary kiln and achieving a certain energy-saving effect, the carbon black material to be dried is mostly in powder form. Directly drawing the exhaust gas containing residual heat through the exhaust fan may cause some carbon black material to be sucked into the connecting pipe, which not only easily causes the recycling and heating of carbon black material and wastes carbon black resources, but also easily affects the normal use of the exhaust fan and connecting pipe. Its practicality is generally limited. In view of the shortcomings of this utility model, those skilled in the art have proposed an energy-saving rotary kiln for carbon black. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an energy-saving rotary kiln for carbon black, which effectively prevents the recovered waste heat air from containing carbon black materials. This not only improves the energy-saving effect of the rotary kiln but also reduces the waste of carbon black materials, making it more practical and thus solving the problems mentioned in the background technology.

[0005] To achieve the aforementioned advantages of effectively preventing the presence of carbon black materials in the recovered waste heat air, thus improving the energy-saving effect of the rotary kiln and reducing carbon black material waste, and enhancing practicality, the specific technical solution adopted by this utility model is as follows: An energy-saving carbon black rotary kiln includes a rotary kiln body, a kiln tail smoke chamber, a kiln head, and a carbon black interception box. A kiln tail seal is installed on one side of the kiln tail smoke chamber. One end of the rotary kiln body is installed inside the kiln tail seal, and the other end of the rotary kiln body is connected and installed on one side of the kiln head. A connecting device is installed between the kiln tail smoke chamber and the kiln head. The waste heat recovery pipe is equipped with a negative pressure fan. A carbon black interception box is connected to the waste heat recovery pipe, and an installation block is fixedly installed on the inner wall of the carbon black interception box. An installation frame is installed abutting below the installation block, and an interception filter is fixedly installed in the center of the installation frame. The installation block and the installation frame are respectively provided with first installation screw holes, and first fixing bolts are screwed into the first installation screw holes. An electric push rod is fixedly installed on one side of the carbon black interception box, and a cleaning plate is connected to the output end of the electric push rod. A high-temperature resistant cleaning brush is installed on the cleaning plate.

[0006] Furthermore, a mounting frame is fixedly welded between the kiln tail smoke chamber and the kiln head, and several mounting grooves are opened on the bottom surface of the mounting frame. Mounting sliders are symmetrically embedded in the mounting grooves. A connecting rod is integrally fixedly installed at the bottom end of the mounting slider, and an insulation shell is welded to the bottom end of the connecting rod. A connecting fixing block is symmetrically fixedly installed on the two insulation shells, and a second mounting screw hole is opened on the connecting fixing block. A second fixing bolt is screwed into the second mounting screw hole. Insulation material lining is fixedly installed on the inner wall of both insulation shells. Semi-circular grooves for clearance are symmetrically opened on both sides of the insulation shells.

[0007] Furthermore, a mounting base plate is provided below the rotary kiln body, and drive transmission components are correspondingly installed on the rotary kiln body and the mounting base plate. A tire is fixedly installed on the side wall of the rotary kiln body, and a support roller is installed on the mounting base plate, with the support roller and the tire cooperating with each other.

[0008] Furthermore, the cross-sectional shape of the mounting groove and the mounting slider is T-shaped.

[0009] Furthermore, the width of the mounting crossbeam is greater than the diameter of the rotary kiln cylinder.

[0010] Furthermore, a control panel is installed on the outer wall of the kiln tail flue, and the control panel is electrically connected to the negative pressure fan, electric push rod and drive transmission assembly.

[0011] Furthermore, the central axis of the vacant semicircular groove is on the same straight line as the central axis of the rotary kiln cylinder.

[0012] Compared with the prior art, this utility model provides an energy-saving carbon black rotary kiln, which has the following beneficial effects:

[0013] (1) This utility model is provided with a rotary kiln body, a kiln tail smoke chamber, a kiln head, a mounting base plate and a carbon black interception box. A kiln tail seal is installed on one side of the kiln tail smoke chamber. One end of the rotary kiln body is installed in the kiln tail seal, and the other end of the rotary kiln body is connected and installed on one side of the kiln head. Drive transmission components are correspondingly installed on the rotary kiln body and the mounting base plate to drive the rotation of the rotary kiln body. A tire is fixedly installed on the side wall of the rotary kiln body, and a support roller is installed on the mounting base plate. The support roller and the tire cooperate with each other to realize the rotation of the rotary kiln body. The rotary kiln is supported by a body, and the preparation and processing of carbon black materials can be achieved using the set rotary kiln cylinder, kiln tail flue, and kiln head. On the other hand, a waste heat recovery pipe is installed between the kiln tail flue and the kiln head, and a negative pressure fan is installed on the waste heat recovery pipe. When the negative pressure fan is started, a negative pressure is generated in the waste heat recovery pipe, which draws the heat-containing exhaust gas entering the kiln head into the waste heat recovery pipe, and finally transfers it to the cavity of the kiln tail flue to preheat the carbon black material. This realizes the secondary utilization of waste heat energy, reduces the heat consumption of the carbon black rotary kiln, and makes it more efficient to use. To enhance energy efficiency, a carbon black interception box is connected to the waste heat recovery pipe. An installation block is fixedly installed on the inner wall of the carbon black interception box, and an installation frame is installed below the installation block. An interception filter is fixedly installed in the center of the installation frame. The installation block and frame have corresponding first mounting screw holes, and first fixing bolts are screwed into these holes. The interception filter can intercept carbon black material contained in the exhaust gas, preventing the processed carbon black material from re-entering the rotary kiln cavity for secondary processing. An electric push rod is fixedly installed on one side of the carbon black interception box, and a cleaning plate is connected to the output end of the electric push rod. The cleaning plate is equipped with a high-temperature resistant cleaning brush. After a period of use, the user can push the cleaning plate and the high-temperature resistant cleaning brush back and forth by using the electric push rod to clean the carbon black material intercepted on the bottom surface of the interception filter screen. This allows the carbon black material to be cleaned off and fall back into the kiln head, effectively preventing the recovered waste heat air from containing carbon black material. This not only improves the energy-saving effect of the rotary kiln but also reduces the waste of carbon black material, making it more practical.

[0014] (2) This utility model is provided with an installation crossbeam and an insulation shell. An installation crossbeam is fixedly welded between the kiln tail smoke chamber and the kiln head. Several installation grooves are opened on the bottom surface of the installation crossbeam. A connecting rod is fixedly installed on the top surface of the insulation shell. An installation slider is integrally connected to the top of the connecting rod. During installation, two symmetrical insulation shells are symmetrically placed on both sides of the rotary kiln body, and the installation sliders are inserted into the corresponding installation grooves until the opposite sides of the two insulation shells abut against each other. Connecting fixing blocks are symmetrically welded on the two insulation shells, and second installation screw holes are opened on the connecting fixing blocks. When the two sets of connecting fixing blocks abut against each other... At this time, the second fixing bolt can be screwed into the second mounting screw hole to fix the two insulation shells to the outside of the rotary kiln. The insulation shells are provided with symmetrical semi-circular grooves on both sides to prevent the insulation shells from affecting the rotation of the rotary kiln. The inner wall of the insulation shells is fixedly lined with insulation material, which can reduce the loss of heat radiated outward by the rotary kiln during operation. The mounting crossbeam and insulation shells can effectively shield and protect the rotary kiln placed in the open, effectively reducing the impact of rain and snow on its internal temperature, thereby further improving the energy-saving effect of the carbon black rotary kiln and making it more practical. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an energy-saving carbon black rotary kiln according to an embodiment of the present utility model;

[0017] Figure 2 This is a side sectional view of the mounting frame of the energy-saving carbon black rotary kiln according to an embodiment of the present utility model;

[0018] Figure 3 According to the embodiments of this utility model Figure 1 Enlarged view of point A;

[0019] Figure 4 According to the embodiments of this utility model Figure 2 Enlarged view of point B;

[0020] Figure 5 This is a perspective view of the heat-insulating outer shell of an energy-saving carbon black rotary kiln according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Rotary kiln shell; 2. Kiln tail smoke chamber; 3. Kiln tail seal; 4. Negative pressure fan; 5. Waste heat recovery pipe; 6. Mounting crossbeam; 7. Mounting chute; 8. Mounting slider; 9. Tire; 10. Electric push rod; 11. Carbon black interception box; 12. Kiln head; 13. Mounting base plate; 14. Support roller; 15. Drive transmission assembly; 16. Insulation shell; 17. Insulation material lining; 18. Relief semi-circular groove; 19. Connecting fixing block; 20. Mounting block; 21. Mounting frame; 22. Interception filter; 23. First fixing bolt; 24. Cleaning plate; 25. High-temperature resistant cleaning brush; 26. Second fixing bolt; 27. Connecting rod. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, an energy-saving rotary kiln for carbon black is provided.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, the energy-saving carbon black rotary kiln according to an embodiment of this utility model includes a rotary kiln body 1, a kiln tail smoke chamber 2, a kiln head 12, and a carbon black interception box 11. A kiln tail seal 3 is installed on one side of the kiln tail smoke chamber 2. One end of the rotary kiln body 1 is installed inside the kiln tail seal 3, and the other end of the rotary kiln body 1 is connected and installed on one side of the kiln head 12. A waste heat recovery pipe 5 is installed between the kiln tail smoke chamber 2 and the kiln head 12, and a negative pressure fan 4 is installed on the waste heat recovery pipe 5. The carbon black interception box 11 is installed on the waste heat recovery pipe 5, and an installation block 20 is fixedly installed on the inner wall of the carbon black interception box 11. The lower part of the installation block 20 abuts against... An installation frame 21 is installed, and an intercepting filter 22 is fixedly installed in the center of the installation frame 21. The installation block 20 and the installation frame 21 are respectively provided with first installation screw holes, and first fixing bolts 23 are screwed and fixedly installed in the first installation screw holes. An electric push rod 10 is fixedly installed on one side of the carbon black interception box 11, and a cleaning plate 24 is connected and installed at the output end of the electric push rod 10. A high-temperature resistant cleaning brush 25 is installed on the cleaning plate 24, which can effectively prevent carbon black materials from being contained in the recovered waste heat air. This not only improves the energy-saving effect of the rotary kiln, but also reduces the waste of carbon black materials, making it more practical.

[0026] In one embodiment, a mounting frame 6 is fixedly welded between the kiln tail flue chamber 2 and the kiln head 12. The bottom surface of the mounting frame 6 has several mounting grooves 7, and mounting sliders 8 are symmetrically fitted into the mounting grooves 7. A connecting rod 27 is integrally fixedly installed at the bottom of the mounting slider 8, and an insulation shell 16 is welded to the bottom of the connecting rod 27. Connecting fixing blocks 19 are symmetrically fixedly installed on the two insulation shells 16, and second mounting screw holes are provided on the connecting fixing blocks 19. Second fixing bolts 26 are screwed into the second mounting screw holes. Insulation material liners 17 are fixedly installed on the inner walls of both insulation shells 16. Semi-circular grooves 18 are symmetrically provided on both sides of the insulation shells 16. These features reduce the loss of heat radiated outwards from the rotary kiln cylinder 1 during operation and effectively protect the exposed rotary kiln cylinder 1, effectively reducing the impact of rain and snow on its internal temperature, thereby further improving the energy-saving effect of the carbon black rotary kiln and enhancing its practicality.

[0027] Furthermore, a mounting base plate 13 is provided below the rotary kiln shell 1, and drive transmission components 15 are correspondingly installed on the rotary kiln shell 1 and the mounting base plate 13. A tire 9 is fixedly installed on the side wall of the rotary kiln shell 1, and a support roller 14 is installed on the mounting base plate 13. The support roller 14 and the tire 9 cooperate with each other to drive the rotary kiln shell 1 to rotate. The installation structure and driving principle are existing mature technologies, and will not be described in detail here.

[0028] Furthermore, the cross-sectional shape of the mounting groove 7 and the mounting slider 8 is T-shaped.

[0029] Furthermore, the width of the mounting frame 6 is greater than the diameter of the rotary kiln body 1, which serves to shield and protect the top of the rotary kiln body 1, effectively reducing the impact of rain and snow on its internal temperature, thereby further improving the energy-saving effect of the carbon black rotary kiln and making it more practical.

[0030] Furthermore, a control panel is installed on the outer wall of the kiln tail smoke chamber 2, and the control panel is electrically connected to the negative pressure fan 4, the electric push rod 10 and the drive transmission assembly 15. The control circuit of the control panel can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0031] Furthermore, the central axis of the semicircular groove 18 is on the same straight line as the central axis of the rotary kiln cylinder 1.

[0032] Working Principle: This utility model includes a rotary kiln body 1, a kiln tail smoke chamber 2, a kiln head 12, a mounting base plate 13, and a carbon black interception box 11. A kiln tail seal 3 is installed on one side of the kiln tail smoke chamber 2. One end of the rotary kiln body 1 is installed inside the kiln tail seal 3, and the other end of the rotary kiln body 1 is connected and installed on one side of the kiln head 12. Drive transmission components 15 are correspondingly installed on the rotary kiln body 1 and the mounting base plate 13 to drive the rotation of the rotary kiln body 1. A tire 9 is fixedly installed on the side wall of the rotary kiln body 1, and a support roller 14 is installed on the mounting base plate 13. The support roller 14 and the tire 9 cooperate to support the rotating rotary kiln body 1. The rotary kiln body 1, the kiln tail smoke chamber 2, and the kiln head 12 can achieve... In the preparation and processing of carbon black materials, on the one hand, a waste heat recovery pipe 5 is installed between the kiln tail flue chamber 2 and the kiln head 12, and a negative pressure fan 4 is installed on the waste heat recovery pipe 5. When the negative pressure fan 4 is started, a negative pressure is generated in the waste heat recovery pipe 5, which can draw the exhaust gas containing heat into the kiln head 12 into the waste heat recovery pipe 5, and finally transfer it to the inner cavity of the kiln tail flue chamber 2 to preheat the carbon black processing material, thereby realizing the secondary utilization of waste heat energy, reducing the heat consumption of the carbon black rotary kiln, and making it more energy-efficient. On the other hand, a carbon black interception box 11 is installed on the waste heat recovery pipe 5, and an installation block 20 is fixedly installed on the inner wall of the carbon black interception box 11. An installation frame 21 is installed below the installation block 20, and the installation frame... A centrally mounted interceptor filter 22 is installed. The mounting block 20 and mounting frame 21 have corresponding first mounting screw holes, and first fixing bolts 23 are screwed into these holes. The interceptor filter 22 intercepts carbon black material contained in the exhaust gas, preventing the processed carbon black material from re-entering the rotary kiln cylinder 1 for secondary processing. An electric push rod 10 is fixedly installed on one side of the carbon black interception box 11, and a cleaning plate 24 is connected to the output end of the electric push rod 10. A high-temperature resistant cleaning brush 25 is installed on the cleaning plate 24. After a period of use, the user can use the electric push rod 10 to move the cleaning plate 24 and the high-temperature resistant cleaning brush 25 back and forth to clean the material intercepted in the interceptor filter 22. The carbon black material on the bottom surface is cleaned, causing it to fall back into the kiln head 12. This effectively prevents the recovered waste heat air from containing carbon black material, which not only improves the energy-saving effect of the rotary kiln but also reduces the waste of carbon black material, making it more practical. Furthermore, this invention includes an installation crossbeam 6 and an insulation shell 16. The installation crossbeam 6 is fixedly welded between the kiln tail smoke chamber 2 and the kiln head 12, and its bottom surface has several installation grooves 7. A connecting rod 27 is fixedly installed on the top surface of the insulation shell 16, and an installation slider 8 is integrally connected to the top of the connecting rod 27. During installation, two symmetrical insulation shells 16 are symmetrically placed on both sides of the rotary kiln cylinder 1, and the installation sliders 8 are correspondingly inserted into the installation grooves 7.The two insulating shells 16 are aligned until they abut against each other on opposite sides. Symmetrically welded connecting and fixing blocks 19 are mounted on the two insulating shells 16, and corresponding second mounting screw holes are provided on the connecting and fixing blocks 19. When the two sets of connecting and fixing blocks 19 abut against each other, second fixing bolts 26 can be screwed into the second mounting screw holes to fix the two insulating shells 16 to the outside of the rotary kiln body 1. Symmetrically provided semi-circular grooves 18 on both sides of the insulating shells 16 prevent them from affecting the rotation of the rotary kiln body 1. An insulating material lining 17 is fixedly installed on the inner wall of the insulating shells 16, reducing the loss of heat radiated outwards from the rotary kiln body 1 during operation. The mounting crossbeam 6 and the insulating shells 16 effectively shield and protect the exposed rotary kiln body 1, effectively reducing the impact of rain and snow on its internal temperature, thereby further improving the energy-saving effect of the carbon black rotary kiln and enhancing its practicality.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving rotary kiln for carbon black, comprising a rotary kiln body (1), a kiln tail flue chamber (2), a kiln head (12), and a carbon black interception box (11), characterized in that, A kiln tail seal (3) is installed on one side of the kiln tail smoke chamber (2). One end of the rotary kiln body (1) is installed inside the kiln tail seal (3), and the other end of the rotary kiln body (1) is connected and installed on one side of the kiln head (12). A waste heat recovery pipe (5) is installed between the kiln tail smoke chamber (2) and the kiln head (12), and a negative pressure fan (4) is installed on the waste heat recovery pipe (5). A carbon black interception box (11) is installed on the waste heat recovery pipe (5), and an installation block (20) is fixedly installed on the inner wall of the carbon black interception box (11). An installation frame (21) is installed abutting below the installation block (20), and an interception filter (22) is fixedly installed in the center of the installation frame (21). The installation block (20) and the installation frame (21) are respectively provided with first installation screw holes, and first fixing bolts (23) are screwed and fixedly installed in the first installation screw holes. An electric push rod (10) is fixedly installed on one side of the carbon black interception box (11), and a cleaning plate (24) is connected and installed at the output end of the electric push rod (10), and a high-temperature resistant cleaning brush (25) is installed on the cleaning plate (24).

2. The energy-saving carbon black rotary kiln according to claim 1, characterized in that, A mounting frame (6) is fixedly welded between the kiln tail smoke chamber (2) and the kiln head (12). The bottom surface of the mounting frame (6) is provided with several mounting grooves (7). Mounting sliders (8) are symmetrically embedded in the mounting grooves (7). A connecting rod (27) is integrally fixedly installed at the bottom end of the mounting slider (8). An insulation shell (16) is welded to the bottom end of the connecting rod (27). A connecting fixing block (19) is symmetrically fixedly installed on the two insulation shells (16). A second mounting screw hole is provided on the connecting fixing block (19). A second fixing bolt (26) is screwed into the second mounting screw hole. An insulation material lining (17) is fixedly installed on the inner wall of the two insulation shells (16). A semi-circular groove (18) is symmetrically opened on both sides of the insulation shell (16).

3. The energy-saving carbon black rotary kiln according to claim 1, characterized in that, The rotary kiln body (1) is provided with an installation base plate (13) below it. The rotary kiln body (1) and the installation base plate (13) are respectively equipped with drive transmission components (15). The rotary kiln body (1) is fixedly installed with a tire (9) on its side wall. The installation base plate (13) is equipped with a support roller (14), and the support roller (14) and the tire (9) cooperate with each other.

4. The energy-saving carbon black rotary kiln according to claim 2, characterized in that, The cross-sectional shape of the mounting groove (7) and the mounting slider (8) is T-shaped.

5. The energy-saving carbon black rotary kiln according to claim 2, characterized in that, The width of the mounting frame (6) is greater than the diameter of the rotary kiln cylinder (1).

6. The energy-saving carbon black rotary kiln according to claim 1, characterized in that, The outer wall of the kiln tail smoke chamber (2) is equipped with a control panel, and the control panel is electrically connected to the negative pressure fan (4), the electric push rod (10) and the drive transmission assembly (15).

7. The energy-saving carbon black rotary kiln according to claim 2, characterized in that, The central axis of the relocation semicircular groove (18) is on the same straight line as the central axis of the rotary kiln cylinder (1).

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