Recycling device for waste heat of calcined petroleum coke

Abstract

The utility model discloses a waste heat recycling device for calcined petroleum coke, which relates to the technical field of waste heat recycling and comprises a reaction box and a mixing box body, an ammonia gas pipeline is fixedly mounted at the top end of the mixing box body, and a connecting pipe is fixedly mounted in the mixing box body. The side end part of the connecting pipe is fixedly provided with at least two gas inlet pipes, the interior of each gas inlet pipe is fixedly provided with a mounting plate, the interior of each gas inlet pipe is fixedly provided with an intercepting plate, the side end part of each mounting plate is rotatably provided with a rotating shaft, and ammonia gas is injected into the mixing box body through the communication of an ammonia gas pipeline and the connecting pipe; ammonia gas is mixed with a stock solution in the mixing box body, the ammonia gas enters a connecting pipe through an ammonia gas pipeline, the ammonia gas is guided into a gas inlet pipe through the connecting pipe, the gas inlet pipe is of a bent design, the influence of impact force and vibration generated by flowing of the ammonia gas on the connecting pipe can be reduced, and the risk of breakage of the connecting pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery and utilization, and particularly relates to a device for recovering and utilizing waste heat of calcined petroleum coke. Background Art

[0002] A large amount of waste heat is generated during the production of calcined petroleum coke. Recycling and utilizing this waste heat is of great economic and environmental significance. By recycling and utilizing the waste heat of calcined petroleum coke, the energy utilization efficiency can be improved and the energy cost of enterprises can be reduced.

[0003] Currently, the existing waste heat recovery and utilization device (such as the patent publication number: CN216499247U) discloses an alkali-making device based on flue gas waste heat recovery for a petroleum coke calciner. The raw liquid is injected into the mixing box by a spray head through the raw liquid port, ammonia gas is discharged from different positions of the pipeline through round holes, and then the two are mixed more evenly. The sodium bicarbonate crystals are filtered through a filter screen, and the sodium bicarbonate crystals on the filter screen are pushed to the inclined pipe to the right by a second telescopic rod, thereby completing solid-liquid separation.

[0004] However, in the process of implementing the above technical solution, it is found that there are at least the following technical problems: the raw liquid is injected into the interior of the mixing box through a spray head, and at the same time, ammonia gas is conveyed into the interior of the mixing box through a pipeline. The ammonia gas flow discharged from the discharge port is relatively concentrated. This concentrated gas flow may directly contact the raw liquid, easily generate bubbles, and destroy the uniform mixing of the raw liquid and ammonia gas. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a device for recovering and utilizing waste heat of calcined petroleum coke, which solves the technical problem that when ammonia gas is conveyed into the interior of the mixing box through a pipeline, the ammonia gas flow discharged from the discharge port is relatively concentrated. This concentrated gas flow may directly contact the raw liquid, easily generate bubbles, and destroy the uniform mixing of the raw liquid and ammonia gas.

[0007] (II) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0009] A device for recovering and utilizing waste heat of calcined petroleum coke includes a reaction box and a mixing box body. The top end of the mixing box body is fixedly installed with an ammonia pipeline. A connecting pipe is fixedly installed inside the mixing box body. At least two air inlet pipes are fixedly installed at the side end of the connecting pipe. An installation plate is fixedly installed inside each air inlet pipe. An intercepting plate is fixedly installed inside the air inlet pipe. A rotating shaft is rotatably installed at the side end of the installation plate.

[0010] Preferably, a conical block is fixedly installed at the side end of the mounting plate, at least two flow guiding plates are fixedly installed on the surface of the conical block, at least two blades are fixedly installed on the surface of the rotating shaft, a stock solution pipeline is fixedly installed at the top end of the mixing tank body, at least two nozzle bodies are fixedly installed at the end of the stock solution pipeline, a conveying pipe is fixedly installed at the end of the mixing tank body, and a solenoid valve is fixedly installed inside the conveying pipe.

[0011] (III) Beneficial effects

[0012] 1. By directly flowing onto the surface of the conical block through the intercepting plate, the conical block is designed in a conical shape to increase the covering area of the air flow. At the same time, multiple flow guiding plates are installed on the surface of the conical block to guide the flow direction of the ammonia gas on the surface of the conical block, disperse the air flow, and the air flow is effectively dispersed, thereby reducing the generation of bubbles. At the same time, the blades drive the conical block to rotate, increasing the contact area between ammonia gas and the stock solution, and the rotating conical block agitates the stock solution to increase the mixing speed.

[0013] 2. Through the penetration of the ammonia gas pipeline and the connecting pipe, ammonia gas is injected into the interior of the mixing tank body to mix with the stock solution inside the mixing tank body. Ammonia gas enters the interior of the connecting pipe through the ammonia gas pipeline, and ammonia gas is respectively introduced into the interior of the intake pipe through the connecting pipe. The intake pipe is designed in a bent shape, which can reduce the impact force and vibration generated by the flow of ammonia gas on the connecting pipe, and reduce the risk of the connecting pipe bursting. Description of the drawings

[0014] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the drawings as follows.

[0015] Figure 1 It is the structural diagram of the reaction tank of the present invention;

[0016] Figure 2 It is the structural diagram of the mixing tank body of the present invention;

[0017] Figure 3 It is the structural diagram of the connecting pipe of the present invention;

[0018] Figure 4 It is the structural diagram of the intake pipe of the present invention.

[0019] Legend description: 11. Reaction tank; 12. Mixing tank body; 13. Conveying pipe; 14. Solenoid valve; 15. Stock solution pipeline; 16. Ammonia gas pipeline; 17. Nozzle body; 18. Connecting pipe; 19. Intake pipe; 21. Intercepting plate; 22. Conical block; 23. Flow guiding plate; 24. Mounting plate; 25. Rotating shaft; 26. Blade. Detailed implementation manners

[0020] In the embodiment of the present application, by providing a device for recycling waste heat of calcined petroleum coke, it effectively solves the problem that when ammonia gas is transported into the mixing tank through a pipeline, the ammonia gas flow discharged from the discharge port is relatively concentrated. This concentrated gas flow may directly contact the stock solution, easily generate bubbles, and destroy the uniform mixing of the stock solution and ammonia gas. The gas directly flows to the surface of the conical block through the intercepting plate. The conical block is designed in a conical shape to increase the covering area of the gas flow. At the same time, a plurality of flow guiding plates are installed on the surface of the conical block. The flow guiding plates guide the flow direction of the ammonia gas on the surface of the conical block to disperse the gas flow. The gas flow is effectively dispersed, thereby reducing the generation of bubbles. At the same time, the blade drives the conical block to rotate, increasing the contact area between ammonia gas and the stock solution. The rotating conical block stirs the stock solution, increasing the mixing speed. Embodiment

[0021] Such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that when ammonia gas is transported into the mixing tank through a pipeline, the ammonia gas flow discharged from the discharge port is relatively concentrated. This concentrated gas flow may directly contact the stock solution, easily generate bubbles, and destroy the uniform mixing of the stock solution and ammonia gas. The general idea is as follows:

[0022] In view of the problems existing in the prior art, the present utility model provides a device for recycling waste heat of calcined petroleum coke, including a reaction tank 11 and a mixing tank body 12. The top end of the mixing tank body 12 is fixedly installed with an ammonia pipeline 16. The inside of the mixing tank body 12 is fixedly installed with a connecting pipe 18. At least two air inlet pipes 19 are fixedly installed at the side end of the connecting pipe 18. Ammonia gas is injected into the inside of the mixing tank body 12 to mix ammonia gas with the stock solution inside the mixing tank body 12. The ammonia gas enters the inside of the connecting pipe 18 through the ammonia pipeline 16, and the ammonia gas is respectively introduced into the inside of the air inlet pipes 19 through the connecting pipe 18. The air inlet pipes 19 are designed to be bent, which can reduce the impact force and vibration generated by the ammonia gas flow on the connecting pipe 18. An installation plate 24 is fixedly installed inside each air inlet pipe 19. An intercepting plate 21 is fixedly installed inside the air inlet pipe 19. A rotating shaft 25 is rotatably installed at the side end of the installation plate 24.

[0023] A conical block 22 is fixedly installed at the side end of the mounting plate 24. At least two flow guiding plates 23 are fixedly installed on the surface of the conical block 22. At least two blades 26 are fixedly installed on the surface of the rotating shaft 25. A stock solution pipeline 15 is fixedly installed at the top end of the mixing tank body 12, and it directly flows onto the surface of the conical block 22 through the intercepting plate 21. The conical block 22 is designed in a conical shape to increase the covering area of the air flow. At the same time, multiple flow guiding plates 23 are installed on the surface of the conical block 22, and the flow guiding plates 23 guide the flow direction of the ammonia gas on the surface of the conical block 22 to disperse the air flow. At least two nozzle bodies 17 are fixedly installed at the end of the stock solution pipeline 15. A delivery pipe 13 is fixedly installed at the end of the mixing tank body 12, and a solenoid valve 14 is fixedly installed inside the delivery pipe 13.

[0024] Working principle:

[0025] First step, through the penetration of the stock solution pipeline 15 and multiple nozzle bodies 17, the nozzle bodies 17 inject the stock solution into the inside of the mixing tank body 12. At the same time, one end of the ammonia gas pipeline 16 is connected to the connecting pipe 18, and multiple air inlet pipes 19 are installed at the side end of the connecting pipe 18. Through the penetration of the ammonia gas pipeline 16 and the connecting pipe 18, ammonia gas is injected into the inside of the mixing tank body 12 to mix the ammonia gas with the stock solution inside the mixing tank body 12. The ammonia gas enters the inside of the connecting pipe 18 through the ammonia gas pipeline 16, and the ammonia gas is respectively introduced into the inside of the air inlet pipes 19 through the connecting pipe 18. The air inlet pipes 19 are designed in a bent shape, which can reduce the impact force and vibration generated by the ammonia gas flow on the connecting pipe 18, reduce the risk of the connecting pipe 18 breaking. At the same time, when the ammonia gas enters the inside of the air inlet pipes 19, the ammonia gas flow impacts the surface of the blades 26. The blades 26 are fixedly connected to the mounting plate 24, and the impacted blades 26 drive the rotating shaft 25 to rotate inside the mounting plate 24. At the same time, one end of the rotating shaft 25 rotates inside the intercepting plate 21. The intercepting plate 21 is installed outside the air inlet pipe 19. The intercepting plate 21 intercepts the impurities inside the stock solution on one side of the air inlet pipe 19. At the same time, the air flow directly flows onto the surface of the conical block 22 through the intercepting plate 21. The conical block 22 is designed in a conical shape to increase the covering area of the air flow. At the same time, multiple flow guiding plates 23 are installed on the surface of the conical block 22, and the flow guiding plates 23 guide the flow direction of the ammonia gas on the surface of the conical block 22 to disperse the air flow, reduce the generation of bubbles. At the same time, the blades 26 drive the conical block 22 to rotate, increasing the mixing degree of the ammonia gas and the stock solution.

[0026] After mixing the stock solution and the ammonia gas, after opening the solenoid valve 14, the mixed stock solution inside the mixing tank body 12 is introduced into the lower heating tank through the delivery pipe 13. Through the pipeline installed at the side end of the reaction tank 11, the waste heat of the flue gas generated by the petroleum coke calcining furnace is introduced into the inside of the reaction tank 11, and the mixed stock solution is heated through the waste heat to achieve solid-liquid separation.

[0027] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present utility model.

Claims

1. A post - calcined petroleum coke waste heat recovery and utilization device, comprising a reaction tank (11) and a mixing tank body (12), characterized in that, The top end of the mixing box body (12) is fixedly installed with an ammonia pipeline (16). Inside the mixing box body (12), a connecting pipe (18) is fixedly installed. At least two air inlet pipes (19) are fixedly installed at the side end of the connecting pipe (18). Inside each air inlet pipe (19), a mounting plate (24) is fixedly installed. An intercepting plate (21) is fixedly installed inside the air inlet pipe (19). A rotating shaft (25) is rotatably installed at the side end of the mounting plate (24). Among them, the air inlet pipe (19) itself has a bent design. A plurality of air inlet pipes (19) are all connected to the connecting pipe (18) in a through manner. The rotating shaft (25) penetrates through the inside of the intercepting plate (21), and the surface of the rotating shaft (25) is in contact with the intercepting plate (21).

2. The post-calcined petroleum coke waste heat recovery and utilization device according to claim 1, characterized in that, A conical block (22) is fixedly installed at the side end of the mounting plate (24). At least two flow guiding plates (23) are fixedly installed on the surface of the conical block (22).

3. The waste heat recovery and utilization device for calcined petroleum coke according to claim 1, characterized in that, At least two blades (26) are fixedly installed on the surface of the rotating shaft (25).

4. The post-calcined petroleum coke waste heat recovery and utilization device according to claim 1, characterized in that, The top end of the mixing box body (12) is fixedly installed with a stock solution pipeline (15).

5. The waste heat recovery and utilization device for calcined petroleum coke according to claim 4, characterized in that, At least two nozzle bodies (17) are fixedly installed at the end of the stock solution pipeline (15).

6. The waste heat recovery and utilization device for calcined petroleum coke according to claim 1, characterized in that, A delivery pipe (13) is fixedly installed at the end of the mixing box body (12). An electromagnetic valve (14) is fixedly installed inside the delivery pipe (13).

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