Tail gas discharger of zinc oxide calcining furnace

Abstract

The utility model provides a tail gas discharger of a zinc oxide calcining furnace, which comprises a plurality of vertical shunting heat dissipation pipes, the plurality of shunting heat dissipation pipes are distributed above an air inlet cover in a rectangular array, the bottom ends of the shunting heat dissipation pipes are communicated with the air inlet cover, the plurality of shunting heat dissipation pipes are used for shunting tail gas, and the bottom ends of the shunting heat dissipation pipes are communicated with the air inlet cover. The heat dissipation area is increased; the exhaust fan is connected with the top ends of the plurality of shunting heat dissipation pipes and drives the tail gas to circulate and be exhausted from bottom to top along the shunting heat dissipation pipes; the scraping assembly is provided with a driving part capable of being automatically lifted and adjusted and a scraping ring; and the scraping ring is mounted in the shunting heat dissipation pipe in a matched manner, and the scraping ring is magnetically connected with the driving part. By adopting the design of a plurality of shunting heat dissipation pipes, the tail gas can be shunted, and the heat dissipation area is greatly increased; and a material scraping assembly is further arranged, after recycling is conducted, materials attached to the inner wall of the flow dividing heat dissipation pipe can be scraped off, and the recycling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to a tail gas emitter of a zinc oxide calcining furnace. Background Art

[0002] Zinc oxide calcining furnace is a device used to calcine zinc oxide. In the zinc oxide calcining furnace, zinc oxide is calcined at high temperature to obtain active zinc oxide, which has high reactivity and can be widely used in rubber, ceramics, glass, chemical industry and other fields.

[0003] During the operation of the zinc oxide calcining furnace, exhaust gas is generated, and the exhaust gas contains zinc oxide particles. In the current existing technology, exhaust gas emissions are often circulated into a conveying pipeline, and heat exchange is carried out in the conveying pipeline to achieve internal gas cooling for recovering the zinc oxide therein. In this exhaust gas emission treatment method, the cooling heat exchange surface is only provided by the pipe surface of the conveying pipeline, and the area for heat exchange and heat dissipation may be insufficient, and the cooling recovery effect may be poor. Further, the zinc oxide may adhere to the inner pipe wall during cooling in the pipeline. Since it is located on the inner pipe wall, it may be difficult to remove it manually, which may affect the recovery rate. Utility Model Content

[0004] The utility model provides a tail gas discharger for a zinc oxide calcining furnace in order to solve the technical problem that tail gas recovery materials may adhere to a pipe wall and are difficult to remove.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an exhaust gas discharger of a zinc oxide calcining furnace, comprising an exhaust pipe and an air intake hood connected and installed at one end of the exhaust pipe; further comprising: a vertical shunt heat dissipation pipe, the number of the shunt heat dissipation pipes is several, the several shunt heat dissipation pipes are distributed above the air intake hood in a rectangular array, and the bottom ends of the shunt heat dissipation pipes are connected with the air intake hood, and the several shunt heat dissipation pipes are used for tail gas shunt to increase the heat dissipation area; an exhaust fan, the exhaust fan is connected to the top ends of the several shunt heat dissipation pipes to drive the exhaust gas to flow and be discharged from the bottom to the top along the shunt heat dissipation pipes; a scraper assembly, the scraper assembly has a driving part and a scraper ring that can be automatically raised and lowered; the scraper ring is mounted in cooperation with the inside of the shunt heat dissipation pipe, and the scraper ring is magnetically connected to the driving part.

[0007] Preferably, the driving part of the scraper assembly includes a movable plate and a lifting mechanism, and a plurality of through holes distributed in a rectangular array are opened on the plate surface of the movable plate, and a magnetic ring is fixedly embedded in the through hole. The magnetic ring is sleeved on the outer tube wall of the shunt heat dissipation tube, and the magnetic ring and the scraper ring are located on the same horizontal plane.

[0008] Preferably, the lifting mechanism includes a motor, an upper frame, a screw and a nut seat; the motor is fixedly mounted on the outer wall of the air intake hood, the upper frame is fixedly mounted on the outer casing of the exhaust fan, the output shaft end of the motor is fixedly connected to the bottom end of the screw, and the top end of the screw is rotatably connected to the upper frame, a nut seat is threadedly connected to the screw, and the nut seat is fixedly connected to the movable plate.

[0009] Preferably, a partition is fixedly installed at the bottom air inlet of the exhaust fan, the partition is fixedly connected to the top end of the shunt heat dissipation pipe, and the top end of the shunt heat dissipation pipe is connected to the air inlet of the exhaust fan, and a mesh plate is installed at the top air outlet of the exhaust fan.

[0010] Preferably, the bottom end of the air intake hood is open, and a lower hopper is fixedly installed at the bottom of the air intake hood, and a valve is arranged below the lower hopper.

[0011] Preferably, a support frame is also fixedly mounted on the bottom of the air intake hood.

[0012] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0013] The positive and progressive effects of the utility model are:

[0014] The exhaust gas discharger of the zinc oxide calcining furnace proposed above can divert the exhaust gas by adopting a design of several diversion heat dissipation pipes. The several diversion heat dissipation pipes provide a heat dissipation surface, which is different from the heat dissipation by a single conveying pipe. It greatly increases the heat dissipation area; a scraper assembly is further provided. After recycling, the driving part in the scraper assembly can drive the scraper ring located inside the diversion heat dissipation pipe to move, and scrape off the material attached to the inner wall of the diversion heat dissipation pipe to ensure the recycling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the magnetic attraction ring distribution of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the scraper ring and the magnetic attraction ring of the utility model.

[0018] Description of Reference Numerals

[0019] 1. Intake hood; 2. Support frame; 3. Lower hopper; 4. Valve; 5. Exhaust pipe; 6. Diverter heat pipe; 601. Scraper ring; 7. Exhaust fan; 8. Partition; 801. Mesh plate; 9. Movable plate; 901. Magnetic ring; 10. Lifting mechanism; 1001. Motor; 1002. Upper shelf; 1003. Screw; 1004. Nut seat. DETAILED DESCRIPTION

[0020] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0021] like Figure 1-3 As shown, an exhaust gas discharger of a zinc oxide calcining furnace includes an exhaust pipe 5 and an air intake hood 1 connected and installed at one end of the exhaust pipe 5; it also includes: a vertical shunt heat dissipation pipe 6, the number of the shunt heat dissipation pipes 6 is several, the several shunt heat dissipation pipes 6 are distributed in a rectangular array above the air intake hood 1, and the bottom ends of the shunt heat dissipation pipes 6 are connected to the air intake hood 1, and the several shunt heat dissipation pipes 6 are used for tail gas diversion to increase the heat dissipation area; an exhaust fan 7, the exhaust fan 7 is connected to the top ends of the several shunt heat dissipation pipes 6, driving the exhaust gas to flow and discharge from bottom to top along the shunt heat dissipation pipes 6; a scraper assembly, the scraper assembly has a driving part that can be automatically raised and lowered and a scraper ring 601; the scraper ring 601 is installed in cooperation with the inside of the shunt heat dissipation pipe 6, and the scraper ring 601 is magnetically connected to the driving part.

[0022] In specific implementation, the driving part of the scraper assembly includes a movable plate 9 and a lifting mechanism 10. The plate surface of the movable plate 9 is provided with a plurality of through holes distributed in a rectangular array. A magnetic ring 901 is fixedly mounted in the through hole. The magnetic ring 901 is sleeved on the outer tube wall of the shunt heat dissipation tube 6, and the magnetic ring 901 and the scraper ring 601 are located on the same horizontal plane. The lifting mechanism 10 includes a motor 1001, an upper frame 1002, a screw 1003 and a nut seat 1004; the motor 1001 is fixedly mounted on the outer wall of the air intake hood 1, the upper frame 1002 is fixedly mounted on the outer shell of the exhaust fan 7, the output shaft end of the motor 1001 is fixedly connected to the bottom end of the screw 1003, and the top end of the screw 1003 is rotatably connected to the upper frame 1002, and a nut seat 1004 is threadedly connected to the screw 1003, and the nut seat 1004 is fixedly connected to the movable plate 9.

[0023] The motor 1001 drives the screw 1003 to rotate, and the screw 1003 and the nut seat 1004 are threaded, and the vertical guidance provided by the magnetic ring 901 and the shunt heat dissipation tube 6 is cooperated, so that the nut seat 1004 and the movable plate 9 move vertically together, thereby realizing the vertical adjustment of the height of all the magnetic rings 901. Through the magnetic force of the magnetic ring 901, all the scraper rings 601 are driven to move vertically together to adjust the height.

[0024] A partition plate 8 is fixedly installed at the bottom air inlet of the exhaust fan 7, and the partition plate 8 is fixedly connected to the top end of the shunt heat dissipation pipe 6. The top end of the shunt heat dissipation pipe 6 is connected to the air inlet of the exhaust fan 7. A mesh plate 801 is installed at the top air outlet of the exhaust fan 7.

[0025] The bottom end of the air intake hood 1 is open, and a lower hopper 3 is fixedly installed at the bottom of the air intake hood 1, and a valve 4 is arranged below the lower hopper 3; the lower hopper 3 is used to gather the recovered materials, and the recovered materials can be discharged from the bottom by opening the valve 4.

[0026] A support frame 2 is also fixedly mounted on the bottom of the air intake cover 1 .

[0027] Usage: When the exhaust gas discharger of the entire zinc oxide calcining furnace is used, an external power supply and a controller are connected for power supply and electrical control; a fan for heat dissipation and blowing is arranged on one side of a plurality of shunt heat dissipation pipes 6 to provide air cooling airflow for the shunt heat dissipation pipes 6;

[0028] Before the zinc oxide calcining furnace is operated, the movable plate 9 in the scraper assembly is driven to move to the highest position, that is, the movable plate 9 is attached to the bottom surface of the partition 8, and the tail gas generated by the operation of the zinc oxide calcining furnace enters the air intake hood 1 through the tail gas pipe 5, and then enters the bottom end of the shunt heat dissipation pipe 6 for shunting, and is further driven in conjunction with the exhaust fan 7 to make the tail gas flow from the bottom end to the top end of the shunt heat dissipation pipe 6, and then is discharged through the exhaust fan 7. During the process of the tail gas flowing in the shunt heat dissipation pipe 6, the heat dissipation area is increased by shunting, and the air-cooled air flow blows the shunt heat dissipation pipe 6 for air cooling to achieve cooling, and the zinc oxide is recovered by cooling, and the zinc oxide falls by gravity and enters the lower hopper 3 below the air intake hood 1 for aggregation, and part of the zinc oxide may be cooled and attached to the inner tube wall of the shunt heat dissipation pipe 6;

[0029] When the zinc oxide calcining furnace finishes running, the exhaust gas is discharged, and the material attached to the inner wall of the shunt heat dissipation pipe 6 is scraped off by the scraping assembly. Specifically, the motor 1001 drives the screw 1003 to rotate forward, so that the nut seat 1004 and the movable plate 9 move downward together, and the magnetic force of the magnetic attraction ring 901 drives all the scraping rings 601 to move vertically downward together, scraping the material and dropping it into the lower hopper 3 until the bottom surface of the movable plate 9 is attached to the top outer wall of the air inlet hood 1, and the scraping is completed. Then the motor 1001 drives the screw 1003 to rotate in the opposite direction, so that the movable plate 9 is reset and re-attached to the bottom surface of the partition 8;

[0030] Then, the valve 4 is opened to discharge the recovered materials in the lower hopper 3 through the valve 4 .

[0031] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A tail gas discharger for a zinc oxide calcining furnace, comprising a tail gas pipe (5) and an air inlet hood (1) connected and installed at one end of the tail gas pipe (5); characterized in that: Also includes: A plurality of vertical shunt heat dissipation pipes (6), wherein the number of the shunt heat dissipation pipes (6) is plural, and the plurality of shunt heat dissipation pipes (6) are distributed in a rectangular array above the air intake hood (1), and the bottom ends of the shunt heat dissipation pipes (6) are connected to the air intake hood (1), and the plurality of shunt heat dissipation pipes (6) are used for tail gas shunt to increase the heat dissipation area; An exhaust fan (7), the exhaust fan (7) being connected to the top ends of the plurality of the shunt heat dissipation pipes (6) to drive the exhaust gas to flow and be discharged from bottom to top along the shunt heat dissipation pipes (6); The scraper assembly comprises a driving part capable of automatically lifting and lowering and a scraper ring (601); the scraper ring (601) is mounted inside the shunt heat dissipation pipe (6), and the scraper ring (601) is magnetically connected to the driving part.

2. The tail gas discharger of the zinc oxide calcining furnace according to claim 1, characterized in that: The driving part of the scraper assembly comprises a movable plate (9) and a lifting mechanism (10). The movable plate (9) is provided with a plurality of through holes distributed in a rectangular array on its plate surface. A magnetic ring (901) is fixedly mounted in the through hole. The magnetic ring (901) is sleeved on the outer tube wall of the shunt heat dissipation tube (6), and the magnetic ring (901) and the scraper ring (601) are located on the same horizontal plane.

3. The tail gas discharger of the zinc oxide calcining furnace according to claim 2, characterized in that: The lifting mechanism (10) comprises a motor (1001), an upper frame (1002), a screw rod (1003) and a nut seat (1004); the motor (1001) is fixedly mounted on the outer wall of the air intake hood (1), the upper frame (1002) is fixedly mounted on the outer shell of the exhaust fan (7), the output shaft end of the motor (1001) is fixedly connected to the bottom end of the screw rod (1003), and the top end of the screw rod (1003) is rotatably connected to the upper frame (1002), the screw rod (1003) is threadedly connected to a nut seat (1004), and the nut seat (1004) is fixedly connected to the movable plate (9).

4. The tail gas discharger of the zinc oxide calcining furnace according to claim 1, characterized in that: A partition plate (8) is fixedly installed at the bottom air inlet of the exhaust fan (7), the partition plate (8) is fixedly connected to the top end of the shunt heat dissipation pipe (6), and the top end of the shunt heat dissipation pipe (6) is connected to the air inlet of the exhaust fan (7), and a mesh plate (801) is installed at the top air outlet of the exhaust fan (7).

5. The tail gas discharger of the zinc oxide calcining furnace according to claim 1, characterized in that: The bottom end of the air intake hood (1) is open, and a lower hopper (3) is fixedly mounted on the bottom of the air intake hood (1), and a valve (4) is arranged below the lower hopper (3).

6. The tail gas discharger of the zinc oxide calcining furnace according to claim 1, characterized in that: A support frame (2) is also fixedly mounted on the bottom of the air intake hood (1).

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