Corrosion-resistant device of calcining furnace for producing petroleum coke products

Abstract

The utility model provides a corrosion-resistant device of a calcining furnace for producing petroleum coke products. The calcining furnace corrosion-resistant device for producing the petroleum coke products comprises a calcining furnace, a flue gas absorption box is arranged on the left side of the calcining furnace, absorption liquid is arranged in the flue gas absorption box, and a flue gas suction pipe is communicated with the right side of the flue gas absorption box and located above the absorption liquid; and the other end of the smoke suction pipe penetrates through the top of the calcining furnace and extends into the calcining furnace, a circulating pump is fixedly installed on the left side of the smoke absorption box, the bottom of the circulating pump is in threaded connection with a liquid suction pipe, and the other end of the liquid suction pipe penetrates through the smoke absorption box and extends into the smoke absorption box to be introduced into the absorption liquid. According to the corrosion-resistant device of the calcining furnace for producing the petroleum coke products, smoke containing corrosive media in the calcining furnace can be purified, the situation that the smoke is left in the calcining furnace for a long time and corrodes the interior of the device is avoided, and the corrosion-resistant device has high corrosion resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum coke product production, in particular to a corrosion-resistant device for a calcining furnace for producing petroleum coke products. Background Art

[0002] Petroleum coke is a solid carbonaceous material produced by high-temperature heating and cracking of petroleum residue. It is a by-product of the oil refining process, produced by the pyrolysis and cracking reaction of the residue in oil refining. Petroleum coke usually has high carbon content and hardness. Petroleum coke is an important fuel for prebaked anodes and anode pastes used in electrolytic aluminum, carbonizers in the carbon industry, graphite electrodes, smelting industrial silicon, and in the fields of chemical industry, metallurgy, cement, power generation, etc.

[0003] The production of petroleum coke uses a calcining furnace for calcination. During the production and forging process of petroleum coke, a large amount of flue gas is generated. The flue gas contains corrosive media such as SO2 and SO3. These harmful media components will cause various corrosion forms such as decarburization corrosion, intergranular corrosion, and hydrogen evolution corrosion to the equipment at high temperatures, and will cause acid water dew point corrosion to the equipment at low temperatures.

[0004] Therefore, it is necessary to provide a corrosion-resistant device for a calcining furnace for producing petroleum coke products to solve the above technical problems. Utility Model Content

[0005] The utility model provides a corrosion-resistant device for a calcining furnace for producing petroleum coke products, which solves the problem that a large amount of smoke generated during the production and forging process of petroleum coke is retained inside the calcining furnace and causes corrosion to the calcining furnace.

[0006] In order to solve the above technical problems, the utility model provides a corrosion-resistant device for a calcining furnace for producing petroleum coke products, comprising: a calcining furnace, a flue gas absorption box is arranged on the left side of the calcining furnace, an absorption liquid is arranged inside the flue gas absorption box, a smoke extraction pipe is connected to the right side of the flue gas absorption box and located above the absorption liquid, the other end of the smoke extraction pipe passes through the top of the calcining furnace and extends to the inside of the calcining furnace, a circulating pump is fixedly installed on the left side of the flue gas absorption box, a liquid extraction pipe is threadedly connected to the bottom of the circulating pump, the other end of the liquid extraction pipe passes through the flue gas absorption box and extends to the The interior is passed into the absorption liquid, the top of the circulation pump is threadedly connected with a liquid delivery pipe, the other end of the liquid delivery pipe passes through the smoke absorption box and extends to the inside of the smoke absorption box and is fixedly connected with a spray pipe, a plurality of spray heads are arranged at the bottom of the spray pipe, a filter is arranged inside the smoke absorption box and above the spray pipe, a box cover is arranged on the top of the smoke absorption box, an air outlet is arranged on the box cover, an exhaust fan is fixedly installed on the box cover and on the left side of the air outlet, the top of the exhaust fan is fixedly connected with an exhaust pipe, and the other end of the exhaust pipe is fixedly connected to the air outlet.

[0007] Preferably, the inner walls on both sides of the flue gas absorption box are provided with card slots, the two ends of the top of the filter are fixedly connected with connecting blocks, the inner side of the connecting block is fixedly connected with a fixed block, the top of the connecting block is provided with a slide groove, the inside of the connecting block is fixedly connected with a spring, the other end of the spring is fixedly connected with a card block, the top of the card block is card-connected with the card slot, the top of the card block is fixedly connected with a pull block, and the pull block and the slide groove are slidably connected.

[0008] Preferably, a sealed furnace door is provided on the front of the calcining furnace, and a rotating door handle is provided on the sealed furnace door.

[0009] Preferably, a drain port is connected to the bottom right side of the flue gas absorption box, and a control valve is provided on the drain port.

[0010] Preferably, a liquid level observation window is provided on the front of the flue gas absorption box.

[0011] Preferably, the bottom of the calcining furnace and the bottom of the flue gas absorption box are both fixedly connected with supporting feet.

[0012] Preferably, one end of the card block connected to the card slot is designed as a slope.

[0013] Compared with the related art, the corrosion-resistant device of the calcining furnace for producing petroleum coke products provided by the utility model has the following beneficial effects:

[0014] The utility model provides a corrosion-resistant device for a calcining furnace for producing petroleum coke products. An exhaust fan is arranged to drive an exhaust pipe to draw the flue gas containing corrosive media in the calcining furnace into a flue gas absorption box. A circulating pump is then arranged to draw out absorption liquid and spray it through a spray head to purify the flue gas in the flue gas absorption box. The purified gas is then discharged from the air outlet through a filter screen, thereby purifying the flue gas containing corrosive media in the calcining furnace, preventing the flue gas from remaining in the calcining furnace for a long time and then causing corrosion to the interior of the device. The utility model has high corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a corrosion-resistant device for a calcining furnace for producing petroleum coke products provided by the utility model;

[0016] Figure 2 It is a schematic diagram of the front structure of the device;

[0017] Figure 3 for Figure 1 An enlarged schematic diagram of part A is shown;

[0018] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown.

[0019] Numbers in the figure: 1. calcining furnace, 2. flue gas absorption box, 3. absorption liquid, 4. smoke extraction pipe, 5. circulation pump, 6. liquid extraction pipe, 7. liquid delivery pipe, 8. spray pipe, 9. spray head, 10. filter screen, 11. box cover, 12. air outlet, 13. exhaust fan, 14. exhaust pipe, 15. slot, 16. connecting block, 17. fixing block, 18. slide slot, 19. spring, 20. block, 21. pull block, 22. sealing furnace door, 23. rotating door handle, 24. drain port, 25. control valve, 26. liquid level observation window, 27. supporting pads. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a corrosion-resistant device for a calcining furnace for producing petroleum coke products provided by the utility model; Figure 2 It is a schematic diagram of the front structure of the device; Figure 3 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. The corrosion-resistant device of the calcining furnace for producing petroleum coke products comprises: a calcining furnace 1, a flue gas absorption box 2 is arranged on the left side of the calcining furnace 1, and an absorption liquid 3 is arranged inside the flue gas absorption box 2, and a smoke extraction pipe 4 is connected to the right side of the flue gas absorption box 2 and located above the absorption liquid, and the other end of the smoke extraction pipe 4 passes through the top of the calcining furnace 1 and extends to the inside of the calcining furnace 1, and a circulating pump 5 is fixedly installed on the left side of the flue gas absorption box 2, and a liquid extraction pipe 6 is threadedly connected to the bottom of the circulating pump 5, and the other end of the liquid extraction pipe 6 passes through the flue gas absorption box 2 and extends to the inside of the flue gas absorption box 2 and passes into the absorption liquid 3, and the circulating pump 5 A liquid delivery pipe 7 is threadedly connected to the top, and the other end of the liquid delivery pipe 7 passes through the smoke absorption box 2 and extends to the inside of the smoke absorption box 2, where it is fixedly connected to a spray pipe 8. A plurality of spray heads 9 are arranged at the bottom of the spray pipe 8. A filter screen 10 is arranged inside the smoke absorption box 2 and above the spray pipe 8. A box cover 11 is arranged on the top of the smoke absorption box 2, and an air outlet 12 is arranged on the box cover 11. An exhaust fan 13 is fixedly installed on the box cover 11 and located on the left side of the air outlet 12. An exhaust pipe 14 is fixedly connected to the top of the exhaust fan 13, and the other end of the exhaust pipe 14 is fixedly connected to the air outlet 12.

[0022] Slots 15 are provided on the inner walls on both sides of the flue gas absorption box 2, and connecting blocks 16 are fixedly connected to the two ends of the top of the filter 10, and a fixed block 17 is fixedly connected to the inner side of the connecting block 16. A slide groove 18 is provided on the top of the connecting block 16, and a spring 19 is fixedly connected to the inside of the connecting block 16, and a block 20 is fixedly connected to the other end of the spring 19. The top of the block 20 is connected to the slot 15 in a snap-fitting manner, and a pull block 21 is fixedly connected to the top of the block 20, and the pull block 21 is connected to the slide groove 18 in a sliding manner. The pull block 21 is pulled to drive the block 20 to squeeze the spring 19 until the block 20 slides out of the slot 15, and then the filter 10 is taken out from the inside of the flue gas absorption box 2 for cleaning or replacement, thereby ensuring the smooth flow of the filter 10 and effectively preventing the filter 10 from being blocked, which makes it impossible to extract the flue gas in the calcining furnace 1.

[0023] A sealed furnace door 22 is disposed on the front of the calcining furnace 1 , and a rotating door handle 23 is disposed on the sealed furnace door 22 to facilitate the staff to load and unload materials.

[0024] The right bottom of the flue gas absorption box 2 is connected to a drain port 24, and a control valve 25 is provided on the drain port 24 to facilitate the discharge and replacement of the absorption liquid 3 in the flue gas absorption box 2 to prevent the purification capacity of the absorption liquid 3 from decreasing after long-term use.

[0025] A liquid level observation window 26 is provided on the front of the flue gas absorption box 2 to facilitate observation of the amount and contamination of the absorption liquid 3 so as to replace it in time.

[0026] The bottom of the calcining furnace 1 and the bottom of the flue gas absorption box 2 are both fixedly connected with support feet 27 for supporting the device.

[0027] One end of the clamping block 20 connected to the clamping slot 15 is designed as an inclined surface, so as to facilitate fixing the filter screen 10 inside the smoke absorption box 2.

[0028] The working principle of the corrosion-resistant device for the calcining furnace for producing petroleum coke products provided by the utility model is as follows:

[0029] During the production and calcination of petroleum coke, the exhaust fan 13 is first turned on, and the exhaust fan 13 drives the exhaust pipe 4 to draw the flue gas containing corrosive media inside the calcining furnace 1 into the flue gas absorption box 2. Then the circulation pump 5 is turned on, and the circulation pump 5 draws out the absorption liquid 3 and sprays it through the spray head 9 to purify the flue gas in the flue gas absorption box 2. The purified gas is then discharged from the air outlet 12 through the filter 10, thereby purifying the flue gas containing corrosive media in the calcining furnace 1.

[0030] Compared with the related art, the corrosion-resistant device of the calcining furnace for producing petroleum coke products provided by the utility model has the following beneficial effects:

[0031] By setting an exhaust fan 13 to drive the exhaust pipe 4, the flue gas containing corrosive media in the calcining furnace 1 is sucked into the flue gas absorption box 2, and then the circulating pump 5 is set to extract the absorption liquid 3 and spray it through the spray head 9 to purify the flue gas in the flue gas absorption box 2. The purified gas is then discharged from the air outlet 12 through the filter 10, thereby purifying the flue gas containing corrosive media in the calcining furnace 1, preventing the flue gas from remaining in the calcining furnace 1 for a long time and causing corrosion to the interior of the device, and having high corrosion resistance.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A corrosion-resistant device for a calcining furnace for producing petroleum coke products, characterized in that: include: A calcining furnace, a flue gas absorption box is arranged on the left side of the calcining furnace, and absorption liquid is arranged inside the flue gas absorption box. A smoke extraction pipe is connected to the right side of the flue gas absorption box and above the absorption liquid. The other end of the smoke extraction pipe passes through the top of the calcining furnace and extends to the inside of the calcining furnace. A circulating pump is fixedly installed on the left side of the flue gas absorption box. A liquid extraction pipe is threadedly connected to the bottom of the circulating pump. The other end of the liquid extraction pipe passes through the flue gas absorption box and extends to the inside of the flue gas absorption box and enters the absorption liquid. The top thread of the circulating pump A liquid delivery pipe is connected to the flue gas pattern, the other end of the liquid delivery pipe penetrates the flue gas absorption box and extends to the inside of the flue gas absorption box and is fixedly connected to a spray pipe, a plurality of spray heads are arranged at the bottom of the spray pipe, a filter is arranged inside the flue gas absorption box and above the spray pipe, a box cover is arranged on the top of the flue gas absorption box, an air outlet is arranged on the box cover, an exhaust fan is fixedly installed on the box cover and on the left side of the air outlet, the top of the exhaust fan is fixedly connected to an exhaust pipe, and the other end of the exhaust pipe is fixedly connected to the air outlet.

2. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 1, characterized in that: The inner walls on both sides of the flue gas absorption box are provided with card slots, the two ends of the top of the filter are fixedly connected with connecting blocks, the inner side of the connecting block is fixedly connected with a fixed block, the top of the connecting block is provided with a slide slot, the inside of the connecting block is fixedly connected with a spring, the other end of the spring is fixedly connected with a card block, the top of the card block is card-connected with the card slot, the top of the card block is fixedly connected with a pull block, and the pull block and the slide slot are slidably connected.

3. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 1, characterized in that: A sealed furnace door is arranged on the front of the calcining furnace, and a rotating door handle is arranged on the sealed furnace door.

4. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 1, characterized in that: The right bottom of the flue gas absorption box is connected with a drain port, and a control valve is arranged on the drain port.

5. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 1, characterized in that: A liquid level observation window is arranged on the front of the flue gas absorption box.

6. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 1, characterized in that: The bottom of the calcining furnace and the bottom of the flue gas absorption box are both fixedly connected with supporting feet.

7. The corrosion-resistant device for a calcining furnace for producing petroleum coke products according to claim 2, characterized in that: One end of the card block connected to the card slot is designed as an inclined surface.

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