High-effect zinc oxide refining furnace

Abstract

The utility model discloses a high-efficiency zinc oxide refining furnace, which belongs to the technical field of zinc oxide refining, and comprises a cylinder body, a support column is arranged at the bottom of the cylinder body, a top plate is arranged at the top of the cylinder body, a heating area is arranged in the cylinder body, three heating chambers are uniformly distributed in the heating area, and connecting holes are formed in the tops of the heating chambers. A feeding hole is formed in the middle of the top plate; according to the utility model, the three heating chambers are arranged, and the through holes are formed in the partition plates of the heating chambers, so that hot air circulates in the three heating chambers, the contact area between materials and the hot air is increased, the heat is uniformly distributed, the materials are uniformly heated, and the quality of zinc oxide is improved; the electric telescopic machine drives the movable ring to rotate and drives the connecting sleeve connected with the fixed rod to drive the rotating rod to rotate, so that the blades connected with the rotating rod deflect, the air inlet is enlarged or shrunk, and the air volume can be conveniently adjusted according to different requirements.

Description

Technical Field

[0001] This utility model relates to the field of zinc oxide refining technology, and in particular to a high-efficiency zinc oxide refining furnace. Background Technology

[0002] Zinc oxide is an extremely important chemical raw material. During the refining process, the quality of zinc oxide is affected by many factors, such as fluctuations in the composition and quality of raw materials, the difficulty in controlling furnace temperature and atmosphere, all of which are closely related to the quality of zinc oxide.

[0003] During the zinc oxide refining process, uneven heat distribution in the furnace leads to insufficient heating of the raw materials, which not only wastes energy and affects the quality and yield of zinc oxide, but also prevents the existing air supply system from adjusting the air volume as needed. It is impossible to manually adjust the air volume according to the furnace temperature and combustion conditions to meet the oxygen demand at different production stages.

[0004] Therefore, we propose a high-efficiency zinc oxide refining furnace. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a high-efficiency zinc oxide refining furnace, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency zinc oxide smelting furnace, comprising a cylinder, a support column at the bottom of the cylinder, a top plate at the top of the cylinder, a heating zone inside the cylinder, three heating chambers evenly distributed within the heating zone, a connecting hole at the top of each heating chamber, a feed inlet at the center of the top plate, a feed pipe fixedly connected to the bottom of the feed inlet, three distribution ports at the bottom of the feed pipe, the distribution ports being fixedly connected to the connecting hole, a combustion chamber on one side of the cylinder, an output pipe at the top of the combustion chamber, an installation pipe on the cylinder above the output pipe, a spray hole extending from the bottom of the installation pipe into the interior of the heating chamber, an air inlet pipe at the bottom of the combustion chamber, a fixing ring inside the air inlet pipe, a rotating seat at the center of the fixing ring, several blades rotatably mounted on the rotating seat, and a cavity inside the combustion chamber containing an air pump.

[0007] In a preferred embodiment, the present invention can be further configured as follows: a rotating rod is provided at the end of the blade away from the rotating seat; a connecting sleeve is sleeved on the outside of the fixed ring extending from the rotating rod; a movable ring is rotatably provided on the outside of the fixed ring; a fixed rod is fixedly installed on the movable ring; and the fixed rod is movably connected to the connecting sleeve.

[0008] In a preferred embodiment, the present invention can be further configured such that: a horizontal plate is symmetrically arranged on the wall of the air intake pipe, an electric telescopic mechanism is arranged on the horizontal plate, an extension plate is arranged on the movable ring, and the end of the electric telescopic mechanism is fixedly connected to the extension plate.

[0009] In a preferred embodiment, the present invention can be further configured such that: partitions are provided on both sides of the heating chamber, through holes are provided on the surface of the partitions, and a discharge port is provided at the bottom of the heating chamber.

[0010] In a preferred embodiment, the present invention can be further configured as follows: an exhaust pipe is provided at the top of the heating chamber, an annular pipe is connected to the end of the exhaust pipe, a processing chamber is connected to the top of the annular pipe, a filter assembly is provided inside the processing chamber, a return pipe is provided at the other end of the processing chamber, and the return pipe extends into the interior of the combustion chamber and is connected to the air pump pipeline.

[0011] In a preferred embodiment, the present invention can be further configured such that: the top of the processing chamber is provided with an air outlet, which extends to the top of the top plate.

[0012] The beneficial effects of this utility model are:

[0013] This invention features three heating chambers with through holes in the partitions between the chambers, allowing hot air to circulate within them. This increases the contact area between the material and the hot air, while also ensuring uniform heat distribution, thus guaranteeing even heating of the material and improving the quality of zinc oxide.

[0014] By setting a fixed ring and a movable ring, the movable ring is driven to rotate by an electric telescopic mechanism, which in turn drives the connecting sleeve of the fixed rod to rotate the rotating rod. This causes the blades connected to the rotating rod to deflect, increasing or decreasing the air inlet, making it easy to adjust the air volume according to different needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the heating chamber structure of this utility model;

[0018] Figure 4 This is a bottom view of the combustion chamber structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the intake pipe structure of this utility model;

[0020] Figure 6For the present utility model Figure 5 Schematic diagram of the structure at point A in the middle;

[0021] Figure 7 This is a schematic diagram of the internal structure of the combustion chamber of this utility model;

[0022] Figure 8 This is a schematic diagram of heat transfer in the heating chamber of this utility model.

[0023] In the diagram: 1. Cylinder; 2. Support column; 3. Top plate; 4. Feed inlet; 5. Combustion chamber; 6. Return pipe; 7. Output pipe; 8. Discharge port; 9. Processing chamber; 10. Annular pipe; 11. Feed pipe; 12. Distribution port; 13. Exhaust pipe; 14. Mounting pipe; 15. Heating chamber; 16. Partition plate; 17. Through hole; 18. Connecting hole; 19. Air inlet pipe; 20. Fixing ring; 21. Horizontal plate; 22. Electric telescopic mechanism; 23. Extension plate; 24. Movable ring; 25. Rotating rod; 26. Connecting sleeve; 27. Fixing rod; 28. Rotating seat; 29. ​​Blade; 30. Air pump. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the embodiments

[0026] Please see Figures 1-8 A high-efficiency zinc oxide smelting furnace includes a cylindrical body 1, with a support column 2 at the bottom and a top plate 3 at the top. A heating zone is located inside the cylindrical body 1, containing three evenly distributed heating chambers 15. Each heating chamber 15 has a connecting hole 18 at its top. A feed inlet 4 is located in the middle of the top plate 3, with a feed pipe 11 fixedly connected to its bottom. The feed pipe 11 has three distribution ports 12 at its bottom, which are fixedly connected to the connecting holes 18. A combustion chamber 5 is provided on one side of the cylinder 1. An output pipe 7 is provided on the top of the combustion chamber 5. An installation pipe 14 is provided on the cylinder 1 above the output pipe 7. The bottom of the installation pipe 14 extends into the interior of the heating chamber 15 and is provided with a spray hole. An air inlet pipe 19 is provided at the bottom of the combustion chamber 5. A fixing ring 20 is provided inside the air inlet pipe 19. A rotating seat 28 is provided in the middle of the fixing ring 20. Several blades 29 are rotatably arranged on the rotating seat 28. A cavity is provided inside the combustion chamber 5. An air pump 30 is provided inside the cavity.

[0027] The air pump 30 uses a vortex blower with model number 2QB410-SAH26. The air pump 30 has two air inlets, one of which is connected to the return pipe 6 and the other is connected to the bottom air inlet pipe 19. Both air inlets are equipped with electrically controlled valves.

[0028] Furthermore, the air inlet connected to the return pipe 6 is designated as a higher priority air source. Pressure sensors are installed at both air inlets of the air pump 30 to monitor the intake pressure in real time. When the pressure at the air inlet of the return pipe 6 is higher than a certain set value, only the electronically controlled valve corresponding to the air inlet of the return pipe 6 is opened, using the return gas to supply air to the combustion chamber. This fully utilizes the heat and oxygen in the return gas, improving energy efficiency. When the pressure at the air inlet of the return pipe 6 is lower than the set value, the system automatically switches to supply air to the air inlet of the intake pipe 19, ensuring the continuity and stability of the air supply to the combustion chamber and preventing combustion interruption or instability due to insufficient return gas.

[0029] A rotating rod 25 is provided at the end of the blade 29 away from the rotating seat 28. The rotating rod 25 extends to the outside of the fixed ring 20 and is fitted with a connecting sleeve 26. A movable ring 24 is rotatably provided outside the fixed ring 20. A fixed rod 27 is fixedly installed on the movable ring 24 and is movably connected to the connecting sleeve 26. Horizontal plates 21 are symmetrically arranged on the wall of the intake pipe 19. An electric telescopic mechanism 22 is provided on the horizontal plate 21. An extension plate 23 is provided on the movable ring 24. The end of the electric telescopic mechanism 22 is fixedly connected to the extension plate 23. The rotation range of the blade 29 is 20°-60°.

[0030] Specifically, the connecting sleeve 26 has an opening, and the fixing rod 27 extends into the opening. The width of the opening is the same as the diameter of the fixing rod 27. By moving the fixing rod 27, the rotating rod 25 is rotated, which in turn drives the blade 29 to rotate.

[0031] The heating chamber 15 is provided with partitions 16 on both sides, and through holes 17 are provided on the surface of the partitions 16. The bottom of the heating chamber 15 is provided with a discharge port 8.

[0032] Hot air is supplied to the heating chamber 15 through nozzles extending from the mounting pipe 14 into the heating chamber 15. Heat can be transferred between the heating chambers 15 via through-holes 17 on the partition 16, simultaneously promoting airflow between them. When hot air from one heating chamber 15 enters an adjacent heating chamber 15 through the through-hole 17, it drives airflow within the adjacent chambers, creating thermal convection between them. This thermal convection further enhances the uniform distribution of heat within the heating zone, ensuring that the raw materials in each heating chamber 15 are adequately heated.

[0033] An exhaust pipe 13 is provided at the top of the heating chamber 15. An annular pipe 10 is connected to the end of the exhaust pipe 13. The top of the annular pipe 10 is connected to the processing chamber 9. A filter assembly is provided inside the processing chamber 9. A return pipe 6 is provided at the other end of the processing chamber 9. The return pipe 6 extends into the interior of the combustion chamber 5 and is connected to the air pump 30. An air outlet is provided at the top of the processing chamber 9. The air outlet extends to the top of the top plate 3.

[0034] The filter assembly inside the treatment chamber 9 is connected to the exhaust port and return pipe 6 via piping, and each exhaust port and return pipe 6 is equipped with an electrically controlled valve. An oxygen concentration sensor is installed in the combustion chamber to continuously monitor the oxygen concentration. The electrically controlled valves of the exhaust port and return pipe 6 at the top of the treatment chamber 9 are interlocked with the oxygen concentration monitoring system. When the oxygen concentration in the combustion chamber exceeds a set safety threshold, the electrically controlled valve of the return pipe 6 is opened first, allowing more purified exhaust gas to return to the combustion chamber via the air pump 30 to maintain the oxygen concentration required for combustion. When the oxygen concentration falls below a certain value, the electrically controlled valve of the exhaust port is opened to release some exhaust gas, while the electrically controlled valve of the return pipe 6 is opened appropriately to ensure that the oxygen concentration in the combustion chamber is maintained within a reasonable range, balancing environmental protection requirements and combustion stability.

[0035] Working principle: When in use, the material is fed through the top feed port 4 and fed into the three heating chambers 15 through the feed pipe 11 and the distribution port 12. The combustion chamber 5 and the air pump 30 supply air. The material is supplied with air and heated through the installation pipe 14 and the nozzles on the installation pipe 14 that extend into the heating chambers 15. The hot air circulates in the three heating chambers 15 through the through holes 17 on the partitions 16 set on both sides of the heating chambers 15, thereby increasing the contact area between the material and the air and making the material heated evenly.

[0036] The airflow at the air inlet is adjusted by adjusting the blades 29 on the fixed ring 20 inside the air inlet pipe 19. The power of the air pump 30 is controlled by controlling the air intake. The extension plate 23 is moved by controlling the electric telescopic motor 22, which in turn drives the movable ring 24 to rotate. The deflection of the fixed rod 27 drives the rotating rod 25 to rotate, which in turn drives the blades 29 to rotate, thus expanding or shrinking the air inlet.

[0037] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high performance zinc oxide smelting furnace, characterized by, The device includes a cylindrical body (1), with a support column (2) at the bottom and a top plate (3) at the top. A heating zone is located inside the cylindrical body (1), with three heating chambers (15) evenly distributed within the heating zone. A connecting hole (18) is located at the top of each heating chamber (15). A feed inlet (4) is located in the middle of the top plate (3). A feed pipe (11) is fixedly connected to the bottom of the feed inlet (4). Three distribution ports (12) are located at the bottom of the feed pipe (11), and each distribution port (12) is fixedly connected to the connecting hole (18). A side of the cylindrical body (1) is provided with… A combustion chamber (5) is provided, and an output pipe (7) is provided at the top of the combustion chamber (5). An installation pipe (14) is provided on the cylinder (1) located on the output pipe (7). The bottom of the installation pipe (14) extends into the interior of the heating chamber (15) and is provided with a spray hole. An air inlet pipe (19) is provided at the bottom of the combustion chamber (5). A fixing ring (20) is provided inside the air inlet pipe (19). A rotating seat (28) is provided in the middle of the fixing ring (20). Several blades (29) are rotatably provided on the rotating seat (28). A cavity is provided inside the combustion chamber (5), and an air pump (30) is provided inside the cavity.

2. A high performance zinc oxide calcining furnace as claimed in claim 1, wherein, A rotating rod (25) is provided at the end of the blade (29) away from the rotating seat (28). The rotating rod (25) extends to the outside of the fixed ring (20) and is fitted with a connecting sleeve (26). A movable ring (24) is rotatably provided on the outside of the fixed ring (20). A fixed rod (27) is fixedly installed on the movable ring (24). The fixed rod (27) is movably connected to the connecting sleeve (26).

3. A high performance zinc oxide calcining furnace as claimed in claim 2, wherein, The intake pipe (19) has symmetrically arranged horizontal plates (21) on its wall. An electric telescopic mechanism (22) is arranged on the horizontal plate (21). An extension plate (23) is arranged on the movable ring (24). The end of the electric telescopic mechanism (22) is fixedly connected to the extension plate (23).

4. The high performance zinc oxide calciner of claim 1, wherein, The heating chamber (15) is provided with partitions (16) on both sides, and the surface of the partitions (16) is provided with through holes (17). The bottom of the heating chamber (15) is provided with a discharge port (8).

5. The high performance zinc oxide calciner of claim 1, wherein, The top of the heating chamber (15) is provided with an exhaust pipe (13), and the end of the exhaust pipe (13) is connected to an annular pipe (10). The top of the annular pipe (10) is connected to a processing chamber (9). The processing chamber (9) is provided with a filter assembly. The other end of the processing chamber (9) is provided with a return pipe (6). The return pipe (6) extends into the combustion chamber (5) and is connected to the air pump (30) pipeline.

6. A high performance zinc oxide calciner according to claim 5, wherein, The top of the processing chamber (9) is provided with an air vent, which extends to the top plate (3).

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