Smoke guiding and dust removing device for tamping coke oven
By adopting H-type smoke guide pipe, ring seat and cold water tank design in the tamping coke oven smoke guide device, the problem of poor deformation and sealing effect of smoke guide pipe at high temperature is solved, and effective smoke guidance and environment of smoke and dust are achieved Protect.
Patent Information
- Application Number
- CN202421355503.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The smoke pollution generated during the coal loading process of existing tamping coke ovens is difficult to deal with effectively, especially the smoke conductor is prone to deform at high temperatures, resulting in poor sealing effect and smoke and dust that are prone to escape, affecting the environment and equipment stability.
A device including H-type smoke conductor, mobile platform, ring seat, sealing ring, spring and cold water tank is designed. The spring absorbs axial expansion and deformation, cools the cold water tank, and the inner and outer guide cones ensure sealing accuracy, ventilation holes and guides. The strip improves sealing performance and cooling effect.
Effectively prevent the smoke conductor from deforming, improve sealing performance, reduce smoke escape, extend the service life of the equipment, and ensure good smoke conduction effect.
Smart Images
Figure CN222182174U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal gas purification, in particular to a smoke guiding and dust removing device for a ramming coke oven. Background Art
[0002] Most of the coking ovens used at home and abroad are side-loaded coal ramming coking ovens. When this type of ramming coking oven is in use, the rammed coal cakes are loaded into the carbonization chamber from the side of the ramming coking oven. During the side-loading process, a large amount of smoke and waste gas will escape from the smoke outlet on the top of the coking oven and the door of the carbonization chamber on the side of the machine, which restricts the development of the coking industry. In addition, the country's requirements for environmental protection are becoming more and more stringent. Solving the smoke pollution caused by coal loading in ramming coking ovens has become an important issue in ramming coking technology.
[0003] In the prior art, the methods for treating the smoke dust during coal loading in ramming coke ovens in my country mainly include ground dust removal stations and smoke dust removal vehicles. The ground dust removal station has the problems of large equipment, large floor space, high energy consumption and high investment, while the smoke dust removal vehicle burns and washes the smoke dust generated during coal loading and then discharges it. It has been widely used and can prevent the smoke dust from escaping. It has a good smoke dust removal effect. However, there are still some problems as follows: First, the existing smoke dust removal vehicles are all provided with smoke guide pipes. During use, due to the high temperature of the escaping smoke, the smoke guide pipes are easily damaged by overheating. The height of the smoke pipe causes deformation, which causes displacement between the various components. In severe cases, it will cause damage, which not only affects the stable and safe operation of the entire system, but also causes the escape of smoke and dust. Secondly, when the smoke and dust from coal loading are guided and removed, the smoke guide pipe will be lowered so that the lower end of the smoke guide pipe is connected and sealed with the smoke outlet hole on the furnace top. After the coal loading is completed, the smoke guide pipe rises and covers the smoke outlet hole. In this process, there is a problem of excessive positioning error of the smoke guide pipe, which leads to low alignment accuracy and poor sealing effect between the smoke guide pipe and the smoke outlet hole. The problem of smoke and dust escaping is prone to occur, causing environmental pollution. Therefore, it is an objective need to develop a smoke guide and dust removal device for a ramming coke oven with a smoke guide pipe that is not easy to deform, smoke and dust are not easy to escape, and has a good smoke guiding effect. Utility Model Content
[0004] The utility model aims to provide a ramming coke oven smoke guiding and dust removing device with good smoke guiding effect, in which the smoke guiding pipe is not easy to deform, smoke and dust are not easy to escape.
[0005] The purpose of the utility model is achieved in this way, including a furnace top and a mobile platform arranged above the furnace top, a smoke guide hole is arranged on the furnace top, an H-shaped smoke guide pipe is arranged below the mobile platform, the H-shaped smoke guide pipe includes a horizontal connecting pipe and vertical pipes arranged at both ends of the horizontal connecting pipe, the horizontal connecting pipe is connected to a lifting mechanism installed on the mobile platform, jackets are arranged on the outer walls of the horizontal connecting pipe and the vertical pipe, the jacket is communicated with a cold water tank arranged on the mobile platform, a ring seat is arranged on the furnace top above the smoke guide hole, a ring groove is processed on the ring seat, a sealing ring and a ring plate are arranged in sequence from top to bottom in the ring groove, a plurality of springs are evenly distributed on the circumference between the ring plate and the groove bottom of the ring groove, an inner guide cone with a small upper port and a large lower port is arranged on the inner side of the notch of the ring groove, and an outer guide cone with a large upper port and a small lower port is arranged on the outer side of the notch of the ring groove.
[0006] Furthermore, a limiting block is arranged on the wall of the annular groove below the annular plate.
[0007] Furthermore, an annular slot is processed on the upper surface of the sealing ring.
[0008] Furthermore, the cross-sectional shape of the annular groove is a cone with a larger upper end and a smaller lower end.
[0009] Furthermore, a plurality of guide strips are evenly distributed on the circumference of the outer side surface of the inner guide cone and the inner side surface of the outer guide cone, and the guide strips are arranged along the generatrix of the inner guide cone and the generatrix of the outer guide cone.
[0010] Furthermore, a vent hole communicating with the bottom of the ring groove is processed on the side wall of the ring seat.
[0011] Furthermore, a guide rail is vertically arranged on the movable platform, and the side wall of the jacket is slidably connected to the guide rail via a sliding block.
[0012] Furthermore, a connecting pipe is respectively provided at the top and bottom between the two vertical pipes of the H-shaped smoke guide pipe, both ends of the connecting pipe are connected to the jacket, the water outlet of the jacket is connected to the cooler arranged on the mobile platform, and the cooler is connected to the cold water tank.
[0013] When the utility model is in use, the mobile platform drives the entire device to move to the set working position. After the brakes stop, the furnace cover blocked on the ring seat is opened by a special cover-opening mechanism, and the furnace cover is removed. Then the lifting mechanism is started, and the lifting mechanism drives the H-shaped smoke guide pipe to move downward until the lower end of the vertical pipe of the H-shaped smoke guide pipe is sealed with the ring seat, and then the coal loading and smoke guiding work can be carried out. During the smoke guiding process, due to the high temperature of the smoke, the vertical pipe will produce axial expansion and deformation under high temperature. A spring is provided in the utility model. When the vertical pipe expands and deforms, it will press the sealing ring and the spring downward, forcing the sealing ring to move downward to compress the spring. When the spring is compressed and contracted, it can absorb the axial displacement, so that the load on the vertical pipe can be released, thereby preventing the deformation of the vertical pipe and extending the service life of the vertical pipe. At the same time, when the vertical pipe expands and stretches, the spring is further compressed, storing more energy, and has a greater resilience, which can increase the pressure between the lower end of the vertical pipe and the sealing ring, thereby improving the sealing performance and preventing Smoke and dust escape; secondly, a jacket is provided on the outside of the H-shaped smoke guide tube, and cold water is introduced into the jacket during smoke guiding to effectively cool down the H-shaped smoke guide tube, thereby preventing the H-shaped smoke guide tube from being deformed due to excessive temperature; finally, the utility model is provided with an inner guide cone and an outer guide cone on the ring seat, and when the H-shaped smoke guide tube moves downward, the lower end of the vertical tube can be guided, and even if the vertical tube has a certain displacement, under the joint action of the inner guide cone and the outer guide cone, it can ensure that the lower end of the vertical tube accurately extends into the ring groove to complete the sealing, thereby improving the alignment accuracy, effectively preventing smoke and dust from escaping and environmental pollution, and ensuring that the device has a good smoke guiding effect. In summary, the utility model has the advantages that the smoke guide tube is not easy to deform, smoke and dust are not easy to escape, and the smoke guiding effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the midpoint A;
[0016] In the figure: 1-furnace top, 2-movable platform, 3-smoke guide hole, 4-horizontal connecting pipe, 5-vertical pipe, 6-lifting mechanism, 7-jacket, 8-cold water tank, 9-ring seat, 10-sealing ring, 11-ring plate, 12-spring, 13-inner guide cone, 14-outer guide cone, 15-limiting block, 16-slot, 17-guide strip, 18-vent, 19-guide rail, 20-connecting pipe, 21-cooler. DETAILED DESCRIPTION
[0017] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or improvements made based on the present invention belong to the protection scope of the present invention.
[0018] like Figures 1-2 As shown, the utility model comprises a furnace top 1 and a mobile platform 2 arranged above the furnace top 1. The mobile platform 2 is an existing structure. Usually, a walking mechanism, a cover-lifting mechanism and the like are installed on the mobile platform 2. A smoke guide hole 3 is arranged on the furnace top 1. An H-shaped smoke guide pipe is arranged below the mobile platform 2. The H-shaped smoke guide pipe comprises a horizontal connecting pipe 4 and vertical pipes 5 arranged at both ends of the horizontal connecting pipe 4. The horizontal connecting pipe 4 is connected to a lifting mechanism 6 installed on the mobile platform 2. Jackets 7 are arranged on the outer walls of the horizontal connecting pipe 4 and the vertical pipe 5. The jacket 7 is connected to a cold water tank 8 arranged on the mobile platform 2. A ring seat 9 is arranged on the furnace top 1 above the smoke guide hole 3. A ring groove is machined on the ring seat 9. A sealing ring 10 and a ring plate 11 are arranged in sequence in the ring groove from top to bottom. A plurality of springs 12 are evenly distributed on the circumference between the ring plate 11 and the groove bottom of the ring groove. An inner guide cone 13 with a small upper port and a large lower port is arranged on the inner side of the notch of the ring groove. An outer guide cone 14 with a large upper port and a small lower port is arranged on the outer side of the notch of the ring groove.
[0019] When the utility model is in use, the mobile platform 2 drives the entire device to move to the set working position. After the brake stops, the furnace cover blocked on the ring seat 9 is opened by a special cover-opening mechanism, and the furnace cover is removed, and then the lifting mechanism 6 is started. The lifting mechanism 6 drives the H-type smoke guide pipe to move downward until the lower end of the vertical pipe 5 of the H-type smoke guide pipe is sealed with the ring seat 9, and then the coal loading and smoke guiding work can be carried out. During the smoke guiding process, due to the high temperature of the smoke, the vertical pipe 5 will produce axial expansion and deformation under high temperature. The utility model is provided with a spring 12. When the vertical pipe 5 expands and deforms, it will press the sealing ring 10 and the spring 12 downward, forcing the sealing ring 10 to move downward and compress the spring 12. When the spring 12 is compressed and contracted, it can absorb the axial displacement, so that the load on the vertical pipe 5 can be released, thereby preventing the deformation of the vertical pipe 5 and extending the service life of the vertical pipe 5. At the same time, when the vertical pipe 5 expands and stretches, the spring 12 is further compressed, storing more energy, and has a greater resilience, which can increase the pressure between the lower end of the vertical pipe 5 and the sealing ring 10, thereby improving the sealing performance. can prevent smoke and dust from escaping; secondly, a jacket 7 is provided on the outer side of the H-shaped smoke guide pipe. When guiding smoke, cold water is introduced into the jacket 7 to effectively cool the H-shaped smoke guide pipe, which can prevent the H-shaped smoke guide pipe from being deformed due to excessive temperature; finally, the utility model is provided with an inner guide cone 13 and an outer guide cone 14 on the ring seat 9. When the H-shaped smoke guide pipe moves downward, the lower end of the vertical pipe 5 can be guided. Even if the vertical pipe 5 has a certain lateral displacement, under the joint action of the inner guide cone 13 and the outer guide cone 14, it can ensure that the lower end of the vertical pipe 5 is accurately extended into the inside of the ring groove to complete the sealing, thereby improving the positioning accuracy, effectively preventing the escape of smoke and dust and the pollution of the environment, and ensuring that the device has a good smoke guiding effect.
[0020] A limit block 15 is provided on the wall of the annular groove below the ring plate 11. When the ring plate 11 moves downward in the annular groove, the spring 12 will be compressed. In case of improper operation or accident, the spring 12 may be crushed. In order to prevent the spring 12 from being crushed, a limit block 15 is provided to ensure that the spring 12 will not be damaged due to excessive compression.
[0021] The upper surface of the sealing ring 10 is processed with an annular slot 16. When in use, the lower end of the vertical pipe 5 is inserted into the slot 16 to increase the contact area between the two. The arrangement of the slot 16 can simultaneously seal the inner and outer sides of the wall of the vertical pipe 5 and the lower end, thereby improving the sealing performance between the vertical pipe 5 and the sealing ring 10.
[0022] The cross-sectional shape of the annular groove is a cone with a large upper end and a small lower end. When the vertical pipe 5 expands due to heat, the sealing ring 10 is forced to move downward in the annular groove. Since the cross-sectional shape of the annular groove is a cone with a large upper end and a small lower end, the more the sealing ring 10 moves downward, the greater the deformation it produces, the greater the extrusion force it receives, and at the same time, the greater the pressure between the lower end of the vertical pipe 5 and the sealing ring 10, thereby improving the sealing performance between the sealing ring 10 and the wall of the annular groove and between the sealing ring 10 and the lower end of the vertical pipe 5, preventing smoke and dust from escaping.
[0023] A plurality of guide strips 17 are evenly distributed on the outer side surface of the inner guide cone 13 and the inner side surface of the outer guide cone 14, respectively, and the guide strips 17 are arranged along the generatrix of the inner guide cone 13 and the outer guide cone 14. The inner guide cone 13 and the outer guide cone 14 are both used for guiding the vertical pipe 5. When the vertical pipe 5 is displaced, it needs to be guided by the inner guide cone 13 and the outer guide cone 1 to insert into the ring seat 9 when it moves downward. However, when the lower end of the vertical pipe 5 contacts the inner guide cone 13 and the outer guide cone 14, the surfaces of the inner guide cone 13 and the outer guide cone 14 are often scratched, and the friction between the two is large, which increases the resistance of the vertical pipe 5 to move downward. In order to solve this problem, the guide strips 17 are provided. When the vertical pipe 5 moves downward, it can only contact with the guide strips 17, and the contact area and friction between the two are relatively small, so that the vertical pipe 5 moves downward more smoothly.
[0024] The side wall of the ring seat 9 is processed with a vent hole 18 connected to the bottom of the ring groove. Due to the setting of the sealing ring 10, the inner space of the ring groove below the sealing ring 10 forms a closed space, and the spring 12 is located in the closed space. During the smoke guiding process, due to the closed space, the internal temperature is high. In the long run, it will lead to the decline of the performance of the spring 12, or even cause the failure of the spring 12. In order to prevent this situation, the vent hole 18 is set, so that the high-temperature hot air inside the space can be discharged through the vent hole 18, ensuring the circulation of air, reducing the temperature of the closed space, and then reducing the temperature of the spring 12, extending the service life of the spring 12.
[0025] A guide rail 19 is vertically arranged on the mobile platform 2, and the side wall of the jacket 7 is slidably connected to the guide rail 19 through a slider. The guide rail 19 is vertically arranged, and the jacket 7 can move vertically up and down along the guide rail 19 through the slider. The guide rail 19 has a guiding effect on the H-shaped smoke guide pipe to prevent the H-shaped smoke guide pipe from lateral deviation, thereby ensuring that the vertical pipe 5 can be accurately inserted into the ring seat 9 when it moves downward.
[0026] A connecting pipe 20 is respectively arranged at the top and bottom between the two vertical pipes 5 of the H-type smoke guide pipe, and both ends of the connecting pipe 20 are connected to the jacket 7, and the water outlet of the jacket 7 is connected to the cooler 21 arranged on the mobile platform 2, and the cooler 21 is connected to the cold water tank 8. When the utility model is in operation, cold water is introduced into the jacket 7 to cool down the H-type smoke guide pipe, but it is found in actual use that due to the structural limitation of the H-type smoke guide pipe, the cold water entering the jacket 7 can often only flow smoothly in the lower half of the H-type smoke guide pipe, especially inside the jacket 7 at the upper end of the vertical pipe 5, the cold water is almost retained in this part, and the flow effect is poor, thereby reducing the cooling effect of the H-type smoke guide pipe. In order to solve this problem, a connecting pipe 20 is arranged to promote the smooth flow of cold water in various parts of the H-type smoke guide pipe, ensure the cooling effect of the H-type smoke guide pipe, prevent deformation, and extend the service life.
Claims
1. A smoke guiding and dust removing device for a ramming coke oven, comprising a furnace top (1) and a movable platform (2) arranged above the furnace top (1), wherein the furnace top (1) is provided with a smoke guiding hole (3), Features An H-shaped smoke guide pipe is arranged below the mobile platform (2), and the H-shaped smoke guide pipe comprises a horizontal connecting pipe (4) and vertical pipes (5) arranged at both ends of the horizontal connecting pipe (4), the horizontal connecting pipe (4) is connected to a lifting mechanism (6) installed on the mobile platform (2), and jackets (7) are arranged on the outer walls of the horizontal connecting pipe (4) and the vertical pipe (5), and the jacket (7) is connected to a cold water tank (8) arranged on the mobile platform (2), and a ring seat (9) is arranged on the furnace top (1) above the smoke guide hole (3), and a ring groove is processed on the ring seat (9), and a sealing ring (10) and a ring plate (11) are arranged in sequence from top to bottom in the ring groove, and a plurality of springs (12) are evenly distributed on the circumference between the ring plate (11) and the groove bottom of the ring groove, and an inner guide cone (13) with a small upper port and a large lower port is arranged on the inner side of the groove of the ring groove, and an outer guide cone (14) with a large upper port and a small lower port is arranged on the outer side of the groove of the ring groove.
2. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features A limiting block (15) is provided on the wall of the annular groove below the annular plate (11).
3. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features The upper surface of the sealing ring (10) is processed with an annular slot (16).
4. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features The cross-sectional shape of the annular groove is a cone with a larger upper port and a smaller lower port.
5. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features A plurality of guide strips (17) are evenly distributed on the outer side surface of the inner guide cone (13) and the inner side surface of the outer guide cone (14) respectively, and the guide strips (17) are arranged along the generatrix of the inner guide cone (13) and the outer guide cone (14) respectively.
6. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features A vent hole (18) communicating with the bottom of the annular groove is processed on the side wall of the annular seat (9).
7. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features A guide rail (19) is vertically arranged on the mobile platform (2), and the side wall of the jacket (7) is slidably connected to the guide rail (19) via a slider.
8. A ramming coke oven smoke guiding and dust removing device according to claim 1, Features A connecting pipe (20) is provided at the top and bottom of the two vertical pipes (5) of the H-shaped smoke guide pipe, respectively. Both ends of the connecting pipe (20) are connected to the jacket (7). The water outlet of the jacket (7) is connected to a cooler (21) provided on the mobile platform (2), and the cooler (21) is connected to a cold water tank (8).