A tank type calcining furnace for processing petroleum coke
By introducing a crushing and return mechanism into the tank calciner, the problem of petroleum coke residue being unable to be crushed further was solved, ensuring complete crushing of petroleum coke residue and cleaning of filter holes, thus improving the performance of the calciner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG LIANHE PETROCHEMICAL CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, the tank-type calcining furnace for petroleum coke processing cannot effectively re-crush the petroleum coke residue after it has been filtered by the baffle plate, which leads to easy clogging of the filter holes and affects the calcination effect.
A pot-type calcining furnace was designed, which includes a crushing mechanism, a return mechanism, and a driving mechanism. The crushing mechanism performs preliminary crushing of petroleum coke, and the petroleum coke residue after filtration is returned to the crushing mechanism by the return mechanism for further crushing. The driving mechanism drives the entire system to ensure that the petroleum coke residue is completely crushed and the residue accumulated in the filter holes is cleaned.
This process achieves thorough crushing of petroleum coke residue, avoids filter clogging, and improves the performance and efficiency of the calcining furnace.
Smart Images
Figure CN224388865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tank calcining furnaces, specifically a tank calcining furnace for petroleum coke processing. Background Technology
[0002] The calciner furnace used in petroleum coke processing is a key heat treatment device, mainly used to calcine petroleum coke at high temperatures to remove volatiles, moisture and impurities, and improve its carbon content and physicochemical properties to meet the needs of subsequent industrial applications.
[0003] In the prior art, Chinese Patent Publication No. CN219474283U discloses a tank-type calcining furnace for petroleum calcination, including a tank-type calcining furnace. The tank-type calcining furnace is fixedly mounted with a support on its exterior. A filter slag mechanism for petroleum calcination is fixedly mounted on the top of the tank-type calcining furnace. The filter slag mechanism for petroleum calcination includes a filter box fixedly mounted on the top of the tank-type calcining furnace. A feed cylinder is fixedly mounted on the top of the filter box. A No. 1 crushing bar is rotatably mounted inside the filter box, extending to its right side.
[0004] The existing technology crushes the added petroleum coke using crushing rods No. 1 and No. 2, then filters the crushed petroleum coke residue through a perforated plate, and finally drops it into a pot furnace for calcination. However, the existing technology cannot re-crush the petroleum coke residue filtered by the perforated plate. Therefore, those skilled in the art have proposed a pot furnace for petroleum coke processing to solve the problems mentioned in the background. Utility Model Content
[0005] The purpose of this invention is to provide a tank-type calcining furnace for petroleum coke processing to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tank-type calcining furnace for petroleum coke processing includes a tank-type calcining furnace, a feeding box installed on the top of the furnace, a feeding port and an inlet respectively opened at the top and bottom of the feeding box, a cylindrical feeding chamber opened at the top of the furnace, a support mounted on the furnace, a mounting back plate mounted on the support, a crushing cylinder located in the feeding chamber mounted on the mounting back plate, an upper opening and a lower opening opened at the top and bottom of the crushing cylinder, and a filter hole provided between the feeding chamber and the inlet; further comprising:
[0008] A crushing mechanism, which is installed inside a crushing cylinder, is used to crush the added petroleum coke.
[0009] The material return mechanism is located in the feeding chamber and is used to return the petroleum coke after it has been filtered by the filter holes and re-crush it.
[0010] A drive mechanism is used to drive the crushing mechanism and the return mechanism.
[0011] As a further embodiment of this utility model: the crushing mechanism includes two crushing shafts rotatably disposed inside the crushing cylinder, crushing rollers are mounted on the crushing shafts, and a first gear that meshes with each other is mounted on one end of the two crushing shafts passing through the mounting back plate.
[0012] As a further embodiment of this utility model: the material return mechanism includes an annular plate, the inner wall of the annular plate is rotatably connected to the mounting back plate, and the annular plate is attached to the back of the feeding box. A plurality of scrapers distributed in an annular pattern are installed on the annular plate, and the scrapers are attached to the inner wall of the feeding chamber and the outer wall of the crushing cylinder.
[0013] As a further embodiment of this utility model: the driving mechanism includes a fixed plate mounted on a bracket, a motor connected to one of the crushing shafts mounted on the fixed plate, a rotating shaft mounted on the mounting back plate, a second gear meshing with one of the first gears mounted on the rotating shaft, and an internal gear ring meshing with the second gear mounted on the inner wall of the annular plate.
[0014] As a further improvement of this utility model, reinforcing rods connected to the side walls of the feeding box are installed on both sides of the fixing plate to reinforce the feeding box.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model puts petroleum coke into the feeding port, and the petroleum coke enters the crushing cylinder through the upper opening at the top of the crushing cylinder and is crushed by the crushing mechanism. The crushed petroleum coke residue falls from the lower opening into the bottom of the feeding chamber, is filtered through the filter holes, and then enters the feed port, and finally enters the canister calciner for calcination. The petroleum coke residue remaining at the bottom of the feeding chamber after being filtered through the filter holes is recovered by the return material mechanism and pushed back to the upper opening of the crushing cylinder, so that this part of the petroleum coke residue re-enters the crushing cylinder and is crushed by the crushing mechanism until the petroleum coke residue is completely crushed and enters the canister calciner. Compared with the prior art, this application can fully crush the petroleum coke residue by combining the crushing mechanism with the return material mechanism. In addition, during the crushing process, the filtered petroleum coke residue can be automatically put back into the crushing cylinder for further crushing, and the accumulated petroleum coke residue on the filter holes can also be cleaned to avoid filter hole blockage, resulting in better performance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a tank-type calcining furnace for petroleum coke processing.
[0017] Figure 2This is a first-view structural schematic diagram of the feeding box in a tank-type calcining furnace for petroleum coke processing.
[0018] Figure 3 This is a schematic diagram of the internal structure of the feeding box in a tank-type calcining furnace for petroleum coke processing.
[0019] Figure 4 This is a schematic diagram of the feeding box in a tank-type calcining furnace for petroleum coke processing from a second perspective.
[0020] Figure 5 This is a schematic diagram of the structure of the annular plate and scraper in a tank-type calcining furnace for petroleum coke processing.
[0021] In the diagram: 1. Tank-type calcining furnace; 2. Feeding box; 3. Feeding port; 4. Inlet; 5. Support; 6. Mounting back plate; 7. Crushing cylinder; 8. Top opening; 9. Bottom opening; 10. Crushing shaft; 11. Crushing roller; 12. Motor; 13. First gear; 14. Filter hole; 15. Annular plate; 16. Scraper; 17. Internal gear ring; 18. Rotating shaft; 19. Second gear; 20. Feeding chamber; 21. Fixing plate; 22. Reinforcing rod. Detailed Implementation
[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0023] Please see Figures 1-5 A tank-type calcining furnace for petroleum coke processing includes a tank-type calcining furnace 1. A feeding box 2 is installed on the top of the tank-type calcining furnace 1. The top and bottom of the feeding box 2 are respectively provided with a feeding port 3 and a feed inlet 4. A cylindrical feeding chamber 20 is opened on the top of the tank-type calcining furnace 1. A support 5 is installed on the tank-type calcining furnace 1, and a mounting back plate 6 is installed on the support 5. A crushing cylinder 7 located inside the feeding chamber 20 is installed on the mounting back plate 6. The top and bottom of the crushing cylinder 7 are provided with an upper opening 8 and a lower opening 9, and a filter hole 14 is provided between the feeding chamber 20 and the feed inlet 4. The furnace also includes:
[0024] A crushing mechanism is provided inside the crushing cylinder 7 for crushing the added petroleum coke.
[0025] The material return mechanism is located in the feeding chamber 20 and is used to return the petroleum coke filtered by the filter holes 14 and re-crush it.
[0026] A drive mechanism is used to drive the crushing mechanism and the return mechanism.
[0027] By placing petroleum coke into the feeding port 3, the petroleum coke enters the crushing cylinder 7 through the upper opening 8 at the top of the crushing cylinder 7 and is crushed by the crushing mechanism. The crushed petroleum coke residue falls from the lower opening 9 into the bottom of the feeding chamber 20, is filtered through the filter holes 14, and then enters the feed port 4. Finally, it enters the canister calciner 1 for calcination. The petroleum coke residue remaining at the bottom of the feeding chamber 20 after being filtered through the filter holes 14 is recovered by the return material mechanism and pushed back to the upper opening 8 of the crushing cylinder 7, so that this part of the petroleum coke residue re-enters the crushing cylinder 7 and is crushed by the crushing mechanism until the petroleum coke residue is completely crushed and enters the canister calciner 1. Compared with the prior art, this application can fully crush the petroleum coke residue by combining the crushing mechanism with the return material mechanism. During the crushing process, the filtered petroleum coke residue can be automatically put back into the crushing cylinder 7 for further crushing, and the accumulated petroleum coke residue on the filter holes 14 can also be cleaned to avoid clogging of the filter holes 14, resulting in better performance.
[0028] As one embodiment of the present invention, the crushing mechanism includes two crushing shafts 10 rotatably disposed inside the crushing cylinder 7, crushing rollers 11 are mounted on the crushing shafts 10, and a first gear 13 that meshes with each other is mounted on one end of the two crushing shafts 10 passing through the mounting back plate 6.
[0029] Driven by the drive mechanism, one of the crushing shafts 10 will rotate, and under the meshing first gear 13, it will drive the other crushing shaft 10 to rotate relative to each other, so that the crushing rollers 11 on the two crushing shafts 10 will rotate relative to each other, thereby crushing the petroleum coke.
[0030] As an embodiment of the present utility model, the return mechanism includes an annular plate 15, the inner wall of the annular plate 15 is rotatably connected to the mounting back plate 6, and the annular plate 15 is attached to the back of the feeding box 2. A plurality of scrapers 16 arranged in annular pattern are installed on the annular plate 15, and the scrapers 16 are attached to the inner wall of the feeding chamber 20 and the outer wall of the crushing cylinder 7.
[0031] The petroleum coke residue, after being crushed by the crushing mechanism in the crushing cylinder 7, falls from the lower opening 9 into the bottom of the feeding chamber 20. Smaller petroleum coke residue passes through the filter holes 14 and enters the feed inlet 4, eventually entering the calciner 1 for calcination. The larger petroleum coke residue remains at the bottom of the feeding chamber 20. Driven by the drive mechanism, the annular plate 15 rotates, driving the scraper 16 to rotate within the feeding chamber 20. As the scraper 16 rotates within the feeding chamber 20, it cleans the petroleum coke residue accumulated above the filter holes 14. The petroleum coke residue filtered by the filter holes 14 rises with the scraper 16 until it is pushed to the upper opening 8 of the crushing cylinder 7 and falls into the crushing cylinder 7 from the upper opening 8 for further crushing by the crushing mechanism until the petroleum coke residue can pass through the filter holes 14. This ensures that the petroleum coke residue is completely crushed and also cleans the petroleum coke residue accumulated on the filter holes 14, preventing clogging and resulting in better performance.
[0032] As an embodiment of the present invention, the driving mechanism includes a fixed plate 21 mounted on a bracket 5, a motor 12 connected to one of the crushing shafts 10 mounted on the fixed plate 21, a rotating shaft 18 mounted on the mounting back plate 6, a second gear 19 meshing with one of the first gears 13 mounted on the rotating shaft 18, and an internal gear ring 17 meshing with the second gear 19 mounted on the inner wall of the annular plate 15.
[0033] When driving, the motor 12 is started by the external control unit. The motor 12 drives the crushing shaft 10 connected to it to rotate, thereby driving the crushing mechanism. At the same time as the first gear 13 of the crushing mechanism rotates, it also drives the second gear 19 to rotate. Furthermore, due to the meshing of the second gear 19 and the internal gear ring 17, it also drives the annular plate 15 to rotate, thereby driving the scraper 16 to rotate.
[0034] As one embodiment of this utility model, the two sides of the fixing plate 21 are equipped with reinforcing rods that are connected to the side wall of the feeding box 2 to reinforce the feeding box 2.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A pot-type calcining furnace for petroleum coke processing, comprising a pot-type calcining furnace, characterized in that, The top of the calcining furnace is equipped with a feeding box, with a feeding port and an inlet at the top and bottom, respectively. A cylindrical feeding chamber is located at the top of the calcining furnace. A support frame is mounted on the calcining furnace, and a mounting back plate is mounted on the support frame. A crushing cylinder located within the feeding chamber is mounted on the mounting back plate. The crushing cylinder has an upper opening at the top and a lower opening at the bottom, and a filter hole is provided between the feeding chamber and the inlet. The furnace also includes: A crushing mechanism, which is installed inside a crushing cylinder, is used to crush the added petroleum coke. The material return mechanism is located in the feeding chamber and is used to return the petroleum coke after it has been filtered by the filter holes and re-crush it. A drive mechanism is used to drive the crushing mechanism and the return mechanism.
2. The pot-type calcining furnace for petroleum coke processing according to claim 1, characterized in that, The crushing mechanism includes two crushing shafts rotatably disposed inside the crushing cylinder, crushing rollers mounted on the crushing shafts, and a first gear meshing with each other at one end of the two crushing shafts passing through the mounting back plate.
3. The pot-type calcining furnace for petroleum coke processing according to claim 2, characterized in that, The material return mechanism includes an annular plate, the inner wall of which is rotatably connected to the mounting back plate, and the annular plate is attached to the back of the feeding box. Several scrapers are installed on the annular plate in a ring-shaped distribution, and the scrapers are attached to the inner wall of the feeding chamber and the outer wall of the crushing cylinder.
4. A pot-type calcining furnace for petroleum coke processing according to claim 3, characterized in that, The drive mechanism includes a fixed plate mounted on a bracket, a motor connected to one of the crushing shafts mounted on the fixed plate, a rotating shaft mounted on the mounting back plate, a second gear meshing with one of the first gears mounted on the rotating shaft, and an internal gear ring meshing with the second gear mounted on the inner wall of the annular plate.
5. A pot-type calcining furnace for petroleum coke processing according to claim 4, characterized in that, The fixing plate is equipped with reinforcing rods on both sides that are connected to the side wall of the feeding box to reinforce the feeding box.