Coke oven capable of utilizing waste heat

Abstract

The utility model discloses a coke oven capable of utilizing waste heat, which comprises an oven body, a sleeve is fixedly connected on the outer side wall of the oven body, a first heat exchange tube is arranged in the sleeve and is wound on the oven body, two ends of the first heat exchange tube penetrate through the side wall of the sleeve, and the first heat exchange tube is arranged in the sleeve. The upper side wall of the furnace body is fixedly connected with a flue gas passage, one end of the flue gas passage is fixedly connected with a flue gas heat exchange pipe, the flue gas heat exchange pipe is arranged in a closed manner, the flue gas passage penetrates through the side wall of the flue gas heat exchange pipe, the upper side wall of the flue gas heat exchange pipe is fixedly connected with a flue gas filter cartridge, and the flue gas filter cartridge is fixedly connected with the flue gas filter cartridge. Filter cotton is fixedly connected to the side wall of the smoke filter cartridge, and a dirt discharging pipe can be connected to the side wall of the bottom of the smoke filter cartridge. According to the utility model, double heat exchange utilization of coke oven heat and flue gas heat is achieved, the utilization rate of waste heat of the coke oven is improved, and the service life of the filter cotton is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of coking ovens, in particular to a coking oven capable of utilizing waste heat. Background Art

[0002] A coke oven is a furnace used to refine coke. A modern coke oven consists of a carbonization chamber, a combustion chamber, a heat storage chamber, an inclined area, a furnace top, a foundation, a flue, etc. The coal in the carbonization chamber is heated in an air-tight condition to become coke.

[0003] For example, Chinese patent application No. 201921824814.1 discloses a flue gas energy-saving recovery device for a coke oven, which solves the problem that the existing coke oven cannot recycle the flue gas during use, resulting in a large amount of heat loss, by setting a coke oven body, an exhaust pipe, a pipeline, a box, a filter mechanism, a support plate, a filter plate, a cross block, a cover plate, a positioning block, a spring, a fan and a waste heat recovery device. The flue gas energy-saving recovery device for a coke oven has the advantages of flue gas recycling and improves the practicality of the coke oven;

[0004] In the above scheme, although the purpose of utilizing the waste heat of flue gas is achieved, in the process of heating the coal into coke, the coke oven will also generate a large amount of heat and dissipate it to the outside, causing waste. In order to solve the above problem, we designed a coke oven that can utilize waste heat. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a coking oven which can utilize both the heat of the furnace body and the heat of the flue gas.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A coking oven capable of utilizing waste heat, comprising a furnace body, a sleeve being fixedly connected to the outer side wall of the furnace body, a first heat exchange tube being arranged inside the sleeve, the first heat exchange tube being wound around the furnace body, both ends of the first heat exchange tube penetrating the side wall of the sleeve, a flue gas passage being fixedly connected to the upper side wall of the furnace body, a flue gas heat exchange tube being fixedly connected to one end of the flue gas passage, the flue gas heat exchange tube being arranged in a closed manner, the flue gas passage penetrating the side wall of the flue gas heat exchange tube, the upper side wall of the flue gas heat exchange tube A smoke filter cartridge is fixedly connected to the wall, filter cotton is fixedly connected to the side wall of the smoke filter cartridge, a dirt discharge pipe can be connected to the bottom side wall of the smoke filter cartridge, the dirt discharge pipe penetrates the side wall of the smoke heat exchange tube, a sealing plug is provided on the dirt discharge pipe, a second heat exchange pipe is fixedly connected to the inner side wall of the smoke heat exchange tube, both ends of the second heat exchange tube penetrate the side wall of the smoke heat exchange tube, a smoke exhaust pipe is fixedly connected to the bottom side wall of the smoke heat exchange tube, and a cleaning structure is provided on the smoke heat exchange tube.

[0008] As a further improvement of the present technical solution: the cleaning structure includes a first gear, which is connected to the flue gas passage through a bearing, an L-shaped rod is fixedly connected to the bottom side wall of the first gear, and a cleaning brush is fixedly connected to one end of the L-shaped rod, and a rotating rod is rotatably connected to the upper side wall of the flue gas heat exchange tube, and the rotating rod passes through the side wall of the flue gas heat exchange tube, and one end of the rotating rod is fixedly connected to a second gear, and the second gear is meshingly connected to the first gear.

[0009] As a further improvement of the technical solution: a furnace door is hingedly connected to the side wall of the furnace body, and an observation window is provided on the furnace door.

[0010] As a further improvement of the technical solution: heat storage clay is provided in the casing.

[0011] As a further improvement of the technical solution: a heat insulation layer is fixedly connected to the outer side wall of the sleeve and the outer side wall of the flue gas heat exchange tube.

[0012] As a further improvement of the technical solution: the inner bottom side wall of the smoke filter cartridge is arranged in an inclined shape.

[0013] As a further improvement of the technical solution: a rotating handle is fixedly connected to the upper end of the rotating rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The heat generated by heating the furnace body can be utilized through the sleeve and the first heat exchange tube, the heat of the flue gas can be used for heat exchange through the flue gas heat exchange tube, the second heat exchange tube and the exhaust pipe, and the filter cotton after filtration can be cleaned through the first gear, the second gear, the rotating rod, the L-shaped rod and the cleaning brush. This device achieves dual heat exchange utilization of the heat of the coke oven and the heat of the flue gas, improves the utilization rate of the coke oven waste heat, and prolongs the service life of the filter cotton.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a coke oven that can utilize waste heat proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the front view and cross-section structure of a coke oven capable of utilizing waste heat proposed by the utility model;

[0020] Figure 3 The utility model provides a schematic diagram of a top view and cross-sectional structure of a coking oven capable of utilizing waste heat.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Furnace body; 2. Sleeve; 3. First heat exchange tube; 4. Flue gas heat exchange tube; 5. Second heat exchange tube; 6. Flue gas filter cartridge; 7. Filter cotton; 8. Flue gas passage; 9. First gear; 10. Second gear; 11. Turning rod; 12. Turning handle; 13. Cleaning brush; 14. Dirt discharge pipe; 15. Sealing plug; 16. Smoke exhaust pipe; 17. Heat storage clay; 18. Insulation layer; 19. L-shaped rod; 20. Furnace door. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. The protection scope of the utility model is not limited to the following.

[0024] See also Figure 1-3 The utility model embodiment proposes a coking oven that can utilize waste heat, including a furnace body 1, a sleeve 2 is fixedly connected to the outer side wall of the furnace body 1, a first heat exchange tube 3 is arranged inside the sleeve 2, the first heat exchange tube 3 is wound on the furnace body 1, both ends of the first heat exchange tube 3 penetrate the side wall of the sleeve 2, a flue gas passage 8 is fixedly connected to the upper side wall of the furnace body 1, a flue gas heat exchange tube 4 is fixedly connected to one end of the flue gas passage 8, the flue gas heat exchange tube 4 is arranged in a closed manner, the flue gas passage 8 penetrates the side wall of the flue gas heat exchange tube 4, and the flue gas heat exchange tube 4 is provided with a first heat exchange tube 3. A smoke filter cartridge 6 is fixedly connected to the side wall, and filter cotton 7 is fixedly connected to the side wall of the smoke filter cartridge 6. A dirt discharge pipe 14 can be connected to the bottom side wall of the smoke filter cartridge 6. The dirt discharge pipe 14 penetrates the side wall of the smoke heat exchange tube 4. A sealing plug 15 is provided on the dirt discharge pipe 14. A second heat exchange tube 5 is fixedly connected to the inner side wall of the smoke heat exchange tube 4. Both ends of the second heat exchange tube 5 penetrate the side wall of the smoke heat exchange tube 4. A smoke exhaust pipe 16 is fixedly connected to the bottom side wall of the smoke heat exchange tube 4, and a cleaning structure is provided on the smoke heat exchange tube 4.

[0025] See also Figure 2The cleaning structure includes a first gear 9, which is connected to the flue gas passage 8 through a bearing. An L-shaped rod 19 is fixedly connected to the bottom side wall of the first gear 9, and a cleaning brush 13 is fixedly connected to one end of the L-shaped rod 19. A rotating rod 11 is rotatably connected to the upper side wall of the flue gas heat exchange tube 4. The rotating rod 11 penetrates the side wall of the flue gas heat exchange tube 4, and a second gear 10 is fixedly connected to one end of the rotating rod 11. The second gear 10 is meshed with the first gear 9 to clean up impurities on the filter cotton 7.

[0026] See also Figure 1 A furnace door 20 is hingedly connected to the side wall of the furnace body 1 , and an observation window is provided on the furnace door 20 for conveniently observing the coking inside the furnace body 1 .

[0027] See also Figure 2 A heat storage clay 17 is provided in the sleeve 2 to store the heat and transfer it into the first heat exchange tube 3 better.

[0028] See also Figure 2 A heat insulation layer 18 is fixedly connected to the outer side wall of the sleeve 2 and the outer side wall of the flue gas heat exchange tube 4 to reduce heat leakage.

[0029] See also Figure 2 The inner bottom side wall of the smoke filter cartridge 6 is arranged in an inclined shape to facilitate the removal of the cleaned impurities.

[0030] See also Figure 2 The upper end of the rotating rod 11 is fixedly connected with a rotating handle 12, and the rotation of the rotating rod 11 is controlled by the rotating handle 12, thereby rotating the cleaning brush 13.

[0031] The working principle of the utility model is as follows: when in use, the first heat exchange tube 3 and the second heat exchange tube 5 are both connected to an external water source. When coking is performed in the furnace body 1, a large amount of heat is generated, and the heat is exchanged with the water circulating in the first heat exchange tube 3. The circulating water takes away the heat, reducing the waste of heat energy of the furnace body 1. Then the flue gas generated by coking enters the flue gas heat exchange tube 4 through the flue gas passage 8. The flue gas is filtered by the filter cotton 7 and diffuses out. The heat in the flue gas is exchanged with the water heat in the second heat exchange tube 5. The circulating water takes away the heat, reducing the waste of heat energy of the flue gas. Then the flue gas flows out through the exhaust pipe 16, and the rotating rod 11 is rotated. When the rotating rod 11 rotates, the second gear 10 is rotated, so that the first gear 9 rotates with the cleaning brush 13 to clean the impurities on the filter cotton 7. The impurities are discharged through the dirty pipe 14, wherein one end of the flue gas passage 8 is located in the middle position of the flue gas filter cylinder 6.

[0032] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A coke oven capable of utilizing waste heat, characterized in that: The invention comprises a furnace body, a sleeve is fixedly connected to the outer side wall of the furnace body, a first heat exchange tube is arranged inside the sleeve, the first heat exchange tube is wound on the furnace body, both ends of the first heat exchange tube pass through the side wall of the sleeve, a flue gas passage is fixedly connected to the upper side wall of the furnace body, a flue gas heat exchange tube is fixedly connected to one end of the flue gas passage, the flue gas heat exchange tube is arranged in a closed manner, the flue gas passage passes through the side wall of the flue gas heat exchange tube, and the upper side wall of the flue gas heat exchange tube is fixedly connected to A smoke filter cartridge, wherein filter cotton is fixedly connected to the side wall of the smoke filter cartridge, a dirt discharge pipe can be connected to the bottom side wall of the smoke filter cartridge, the dirt discharge pipe penetrates the side wall of the smoke heat exchange pipe, a sealing plug is provided on the dirt discharge pipe, a second heat exchange pipe is fixedly connected to the inner side wall of the smoke heat exchange pipe, both ends of the second heat exchange pipe penetrate the side wall of the smoke heat exchange pipe, a smoke exhaust pipe is fixedly connected to the bottom side wall of the smoke heat exchange pipe, and a cleaning structure is provided on the smoke heat exchange pipe.

2. A coking oven capable of utilizing waste heat according to claim 1, characterized in that: The cleaning structure includes a first gear, which is connected to the flue gas passage through a bearing, an L-shaped rod is fixedly connected to the bottom side wall of the first gear, one end of the L-shaped rod is fixedly connected to a cleaning brush, the upper side wall of the flue gas heat exchange tube is rotatably connected to a rotating rod, the rotating rod passes through the side wall of the flue gas heat exchange tube, one end of the rotating rod is fixedly connected to a second gear, and the second gear is meshingly connected to the first gear.

3. A coking oven capable of utilizing waste heat according to claim 1, characterized in that: A furnace door is hingedly connected to the side wall of the furnace body, and an observation window is provided on the furnace door.

4. A coking oven capable of utilizing waste heat according to claim 1, characterized in that: Heat storage clay is arranged in the sleeve.

5. A coking oven capable of utilizing waste heat according to claim 1, characterized in that: A heat insulation layer is fixedly connected to the outer side wall of the sleeve and the outer side wall of the flue gas heat exchange tube.

6. A coking oven capable of utilizing waste heat according to claim 1, characterized in that: The inner bottom side wall of the smoke filter cartridge is arranged in an inclined shape.

7. A coke oven capable of utilizing waste heat according to claim 2, characterized in that: The upper end of the rotating rod is fixedly connected with a rotating handle.

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