Coke oven raw gas waste heat power generation device

Abstract

The utility model relates to coke oven raw coal gas technical field, a kind of coke oven raw coal gas waste heat power generation device, including evaporator, the surface of evaporator is connected with cover plate, the surface of evaporator is connected with connecting pipe, the surface of evaporator is connected with conveying pipe, the end of conveying pipe away from evaporator is connected with fixed shell, the inside of fixed shell is connected with filter screen frame, the surface of filter screen frame is connected with baffle;By moving to baffle, so that filter screen frame inserts the inside of fixed shell, to filter the raw coal gas that enters the inside of evaporator, avoid the dust in raw coal gas to enter the inside of evaporator, to avoid dust to the use of evaporator is influenced, and when filter screen frame is taken out and cleaned, under the setting of second spring, so that sliding plate moves and covers the surface of filter screen frame, to avoid the situation that the dust of filter screen frame taken out due to shaking leads to filter scatters.

Description

Technical Field

[0001] This utility model relates to the field of coke oven waste gas technology, specifically a coke oven waste gas waste heat power generation device. Background Technology

[0002] Coking is a common coking production process in the metallurgical and chemical industries. Coking coal is heated and dry-distilled in a coke oven in the absence of air to produce coke. At the same time, a large amount of raw coal gas with a temperature of 650℃ to 850℃ is generated. The waste heat carried out by the raw coal gas accounts for 36% of the heat output of the coke oven, and this waste heat has great value for recovery and utilization.

[0003] During the operation of coke ovens, a large amount of raw coal gas is generated. This raw coal gas has a high temperature and contains a lot of dust. In traditional processes, it is rapidly cooled by spraying ammonia water, which leads to serious energy waste. To address this issue, a coke oven raw coal gas waste heat power generation device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat power generation device for coke oven gas to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coke oven gas waste heat power generation device, comprising an evaporator, a cover plate fixedly connected to the surface of the evaporator, a connecting pipe fixedly connected to the surface of the evaporator, a conveying pipe fixedly connected to the surface of the evaporator, a fixed shell fixedly connected to the end of the conveying pipe away from the evaporator, a filter screen frame slidably connected inside the fixed shell, and a baffle plate fixedly connected to the surface of the filter screen frame.

[0006] Preferably, a sliding plate is slidably connected inside the baffle plate, and the sliding plate is in contact with the fixed shell.

[0007] Preferably, a second spring is fixedly connected to the surface of the sliding plate, and the end of the second spring away from the sliding plate is fixedly connected to the blocking plate.

[0008] Preferably, the interior of the fixed shell is provided with a limiting groove, and the inner wall of the limiting groove is slidably connected to the surface of the filter screen frame.

[0009] Preferably, a fixing plate is fixedly connected to the surface of the fixing shell, a cavity is formed inside the fixing plate, a sealing plate is slidably connected to the inner wall of the cavity, the upper end of the sealing plate is inclined, and the sealing plate is slidably connected to the inner wall of the fixing shell.

[0010] Preferably, a threaded rod is rotatably connected to the surface of the fixing plate, the threaded rod extends into the interior of the cavity, and the surface of the threaded rod inside the cavity is threadedly connected to the interior of the sealing plate.

[0011] Preferably, the surface of the filter frame is provided with a positioning groove, the inside of the fixed shell is fixedly connected with an installation rod, the inside of the installation rod is slidably connected with a positioning rod, the side of the positioning rod near the sealing plate is inclined, the positioning rod is in contact with the surface of the sealing plate, the inside of the installation rod is provided with a moving groove, and the inner wall of the moving groove is slidably connected with the surface of the positioning rod.

[0012] Preferably, a first spring is fixedly connected to the inner wall of the movable groove, and the end of the first spring away from the movable groove is fixedly connected to the positioning rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by moving the baffle plate, allows the filter frame to be inserted into the fixed shell, thereby filtering the raw coal gas entering the evaporator. This prevents dust in the raw coal gas from entering the evaporator and thus avoids dust affecting its operation. When the filter frame is removed for cleaning, the sliding plate, under the setting of the second spring, moves to cover the surface of the filter frame, thus preventing the filtered dust from being scattered due to shaking when the filter frame is removed. This also utilizes the heat of the raw coal gas, avoiding the need to directly cool the raw coal gas with water and preventing energy loss. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the evaporator of this utility model; Figure 2 This is a schematic diagram of the internal structure of the fixing shell of this utility model; Figure 3 This is a schematic diagram of the sliding plate of this utility model; Figure 4 This is a schematic diagram of the internal structure of the fixing plate of this utility model; Figure 5 This is a schematic diagram of the internal structure of the mounting rod pair of this utility model.

[0015] In the diagram: 1. Evaporator; 2. Cover plate; 3. Connecting pipe; 4. Delivery pipe; 5. Fixed shell; 6. Fixed plate; 7. Threaded rod; 8. Sliding plate; 9. Baffle plate; 10. Sealing plate; 11. Filter screen frame; 12. Limiting groove; 13. Cavity; 14. Mounting rod; 15. Positioning rod; 16. Positioning groove; 17. Moving groove; 18. First spring; 19. Second spring. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] Please see Figure 1 - Figure 5 As shown, a coke oven waste gas waste heat power generation device includes an evaporator 1. A cover plate 2 is fixedly connected to the surface of the evaporator 1. Water is added to the evaporator 1 by opening the cover plate 2. A connecting pipe 3 is fixedly connected to the surface of the evaporator 1. The evaporator 1 is connected to an external steam generator through the connecting pipe 3. The steam inside the evaporator 1 enters the steam generator through the connecting pipe 3 to generate electricity. The evaporator 1 and the steam generator are existing known devices and will not be explained further. A conveying pipe 4 is fixedly connected to the surface of the evaporator 1. A fixed shell 5 is fixedly connected to the end of the conveying pipe 4 away from the evaporator 1. A filter screen frame 11 is slidably connected inside the fixed shell 5. A baffle plate 9 is fixedly connected to the surface of the filter screen frame 11. The fixed shell 5 is connected to the coke oven through a pipe.

[0018] The baffle plate 9 has a sliding plate 8 inside, which is in contact with the fixed shell 5. A second spring 19 is fixedly connected to the surface of the sliding plate 8. The end of the second spring 19 away from the sliding plate 8 is fixedly connected to the baffle plate 9. The reset sliding of the sliding plate 8 is controlled by the setting of the second spring 19.

[0019] The fixed shell 5 has a limiting groove 12 inside. The inner wall of the limiting groove 12 is slidably connected to the surface of the filter frame 11. By setting the limiting groove 12, the filter frame 11 is limited, thereby reducing the possibility of displacement of the filter frame 11.

[0020] A fixing plate 6 is fixedly connected to the surface of the fixing shell 5. A cavity 13 is opened inside the fixing plate 6. A sealing plate 10 is slidably connected to the inner wall of the cavity 13. The upper end of the sealing plate 10 is inclined. The sealing plate 10 is slidably connected to the inner wall of the fixing shell 5. A threaded rod 7 is rotatably connected to the surface of the fixing plate 6. The threaded rod 7 passes through the cavity 13. The surface of the threaded rod 7 inside the cavity 13 is threadedly connected to the inside of the sealing plate 10. Thus, by rotating the threaded rod 7, the sealing plate 10 is driven.

[0021] The filter frame 11 has a positioning groove 16 on its surface. The mounting rod 14 is fixedly connected inside the fixed shell 5. The positioning rod 15 is slidably connected inside the mounting rod 14. The side of the positioning rod 15 near the sealing plate 10 is inclined. The positioning rod 15 is in contact with the surface of the sealing plate 10. The mounting rod 14 has a moving groove 17 inside. The inner wall of the moving groove 17 is slidably connected to the surface of the positioning rod 15. The inner wall of the moving groove 17 is fixedly connected to the first spring 18. The end of the first spring 18 away from the moving groove 17 is fixedly connected to the positioning rod 15. When the positioning rod 15 contacts the sealing plate 10, the first spring 18 is in a compressed state.

[0022] Working principle: Raw coal gas from the coke oven is transported through pipes on the fixed shell 5. The raw coal gas then enters the fixed shell 5 through pipes and flows into the evaporator 1 through the delivery pipe 4. This heats the water inside the evaporator 1, generating steam. The steam generator is then started by the connecting pipe 3, which in turn generates electricity. When the filter frame 11 is in use, the operator presses the baffle plate 9, causing the baffle plate 9 to move the filter frame 11, allowing it to insert into the fixed shell 5. When pressed, the sliding plate 8 comes into contact with the surface of the fixed shell 5 due to the obstruction of the fixed shell 5. As a result, the sliding plate 8 slides under force, and the sliding plate 8 causes the second spring 19 to deform. As a result, the filter screen frame 11 is inserted to filter the raw coal gas that has entered the fixed shell 5. When it is necessary to clean the filter screen frame 11, the obstruction plate 9 is pulled out, and the obstruction plate 9 drives the filter screen frame 11 to move. At this time, the sliding plate 8 no longer comes into contact with the fixed shell 5. Under the elastic force of the second spring 19, the sliding plate 8 returns to its original position and slides to cover the surface of the filter screen frame 11.

[0023] Furthermore, when the threaded rod 7 rotates, the sealing plate 10 will not rotate with the threaded rod 7 due to the obstruction of the fixing plate 6 and the fixing shell 5. Instead, it will slide with the rotation of the threaded rod 7. The threaded rod 7 slides to seal the two sides of the filter screen frame 11, thereby preventing the leakage of raw coal gas inside the pipeline and protecting the workers. When the sealing plate 10 seals the two sides of the filter screen frame 11, the inclined surface of the sealing plate 10 corresponds to the positioning rod 15. Under the elastic force of the first spring 18, the positioning rod 15 slides under force. At this time, the positioning rod 15 slides out from the positioning groove 16 and no longer fixes the filter screen frame 11, so that the filter screen frame 11 can be removed.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A waste heat power generation device for coke oven gas, comprising an evaporator (1), characterized in that: A cover plate (2) is fixedly connected to the surface of the evaporator (1), a connecting pipe (3) is fixedly connected to the surface of the evaporator (1), a conveying pipe (4) is fixedly connected to the surface of the evaporator (1), a fixed shell (5) is fixedly connected to the end of the conveying pipe (4) away from the evaporator (1), a filter screen frame (11) is slidably connected inside the fixed shell (5), and a baffle plate (9) is fixedly connected to the surface of the filter screen frame (11).

2. The coke oven gas waste heat power generation device according to claim 1, characterized in that: The baffle plate (9) is slidably connected to a sliding plate (8), which is in contact with the fixed shell (5).

3. The coke oven gas waste heat power generation device according to claim 2, characterized in that: A second spring (19) is fixedly connected to the surface of the sliding plate (8), and the end of the second spring (19) away from the sliding plate (8) is fixedly connected to the blocking plate (9).

4. A coke oven gas waste heat power generation device according to claim 3, characterized in that: The fixed shell (5) has a limiting groove (12) inside, and the inner wall of the limiting groove (12) is slidably connected to the surface of the filter frame (11).

5. A coke oven gas waste heat power generation device according to claim 4, characterized in that: A fixing plate (6) is fixedly connected to the surface of the fixing shell (5). A cavity (13) is opened inside the fixing plate (6). A sealing plate (10) is slidably connected to the inner wall of the cavity (13). The upper end of the sealing plate (10) is inclined. The sealing plate (10) is slidably connected to the inner wall of the fixing shell (5).

6. A coke oven gas waste heat power generation device according to claim 5, characterized in that: The surface of the fixing plate (6) is rotatably connected to a threaded rod (7), which penetrates into the cavity (13). The surface of the threaded rod (7) inside the cavity (13) is threadedly connected to the inside of the sealing plate (10).

7. A coke oven gas waste heat power generation device according to claim 6, characterized in that: The filter frame (11) has a positioning groove (16) on its surface. The fixed shell (5) has an installation rod (14) fixedly connected inside. The installation rod (14) has a positioning rod (15) slidably connected inside. The side surface of the positioning rod (15) near the sealing plate (10) is inclined. The positioning rod (15) is in contact with the surface of the sealing plate (10). The installation rod (14) has a moving groove (17) inside. The inner wall of the moving groove (17) is slidably connected to the surface of the positioning rod (15).

8. A coke oven gas waste heat power generation device according to claim 7, characterized in that: A first spring (18) is fixedly connected to the inner wall of the moving groove (17), and the end of the first spring (18) away from the moving groove (17) is fixedly connected to the positioning rod (15).

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