Low-price titanium collecting and cleaning device for sponge titanium reduction furnace tail gas

Abstract

The utility model relates to a kind of sponge titanium reduction furnace tail gas low-price titanium collection and cleaning device, belong to sponge titanium tail gas processing field.The device includes collection cylinder (4), apron (1) and wedge block (3), and fixed plate (41) is arranged in the circumferential interval of the open end of collection cylinder (4), and connecting hole is opened on fixed plate (41);Apron (1) upper end is equipped with air inlet pipe (5) and air outlet pipe (6), lower end is equipped with baffle (7), and air inlet pipe (5) and air outlet pipe (6) are located baffle (7) both sides, and apron (1) is equipped with the penetration hole (11) in interval, apron (1) is set on fixed plate (41) by penetration hole (11), and wedge block (3) is placed on apron (1) and penetrates into connecting hole.The structure can realize the quick disassembly of apron (1) and collection cylinder (4) by wedge block (3), and it is convenient to clean thoroughly.Solve the problem that existing equipment is formed by welding, inconvenient operation and material in cylinder body is easy to be cemented and not easy to clean thoroughly.

Description

Technical Field

[0001] This utility model relates to a low-cost titanium collection and cleaning device for the exhaust gas of a sponge titanium reduction furnace, belonging to the field of sponge titanium exhaust gas treatment. Background Technology

[0002] During the titanium sponge reduction process, the exhaust gas generated in the reduction furnace is discharged from the furnace top, dispersed through the reduction valve unloading pipe, and enters the exhaust gas collection pipe, where it is extracted and discharged by a fan. Because the exhaust gas contains low-valent titanium and its biochemical compounds, it can accumulate in the valve unloading pipe, causing blockages. Personnel must be dispatched online each shift to unclog the valve unloading pipe. However, the valve unloading pipe diameter (DN80) is too small, making unclogging difficult and time-consuming. Furthermore, the low-valent titanium and its biochemical compounds in the exhaust gas collection pipe are prone to caking and blockages when damp, making cleaning very difficult. To address the difficulty of online unclogging of the valve unloading pipe, reduce the labor intensity of unclogging work, and minimize safety risks during the unclogging process, a low-valent titanium collector was added between the furnace top discharge pipe and the reduction valve unloading pipe after on-site inspection and discussion. This collector will collect most of the low-valent titanium and its biochemical compounds in the exhaust gas, and the collector will be periodically removed and cleaned.

[0003] Currently, the domestic collection and discharge device for low-cost titanium materials used in sponge titanium production consists of a collection chamber. The lower left side of the collection chamber is equipped with an air inlet pipe, which is connected to the cold end reactor. A rotatable air jet is set on the top plate of the collection chamber, and an air outlet is set on the upper right side of the collection chamber, which is connected to a vacuum system. A vertical baffle is set on the bottom plate of the collection chamber, with a gap between the baffle and the top of the collection chamber. An discharge port is set on the bottom plate of the collection chamber.

[0004] This device is installed between the cold-end reactor and the vacuum system in the distillation process. When low-valence titanium dust enters the collection chamber with the gas flow, it first encounters a baffle in the chamber. Some of the dust adheres to the baffle, while most, due to gravity, settles at the bottom of the condenser. Opening the bottom outlet allows the low-valence material to be discharged from the collector. A very small portion of the low-valence material adheres to the baffle. This is then cleaned by using air or argon gas through the jet nozzle to remove the deposits from the baffle and the inner wall of the collection chamber. However, in actual use, it was found that the cover plate of this device is welded to the cylinder, making it difficult to disassemble. Furthermore, the material inside the cylinder tends to accumulate and harden on the baffle and the bottom surface of the cylinder, making it difficult to clean thoroughly. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing equipment is welded and formed, which is inconvenient to operate and the material inside the cylinder is prone to caking and difficult to clean.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a low-priced titanium collection and cleaning device for tail gas of sponge titanium reduction furnace, including a collection cylinder and a cover plate, and also including a wedge block. The collection cylinder has a fixing plate circumferentially spaced at the open end, and the fixing plate has a connecting hole. The cover plate has an air inlet pipe and an air outlet pipe at the upper end, and a partition plate at the lower end, with the air inlet pipe and the air outlet pipe located on both sides of the partition plate. The cover plate has through holes spaced apart, and the cover plate is sleeved on the fixing plate through the through holes. The wedge block is placed at the upper end of the cover plate and passes through the connecting hole.

[0007] The number of fixing plates in the above structure is 2 to 6.

[0008] The above structure also includes a sealing gasket, which is disposed between the collection cylinder and the cover plate.

[0009] In the above structure, the upper end of the collecting cylinder is turned outward to form a sealing ring, so that the projection of the collecting cylinder is a T-shaped structure.

[0010] In the above structure, the width of the partition is adapted to the inner wall of the collection cylinder.

[0011] In the above structure, the lower end of the partition is spaced apart from the bottom surface of the collection cylinder.

[0012] In the above structure, the height of the partition is greater than or equal to 1 / 2 of the depth of the collection cylinder.

[0013] In the above structure, at least one wedge has an insertion direction opposite to that of the other wedges.

[0014] In the above structure, the upper surface of the cover plate is a rough surface structure.

[0015] In the above structure, the outer walls of the air inlet pipe and the air outlet pipe are serrated.

[0016] The beneficial effects of this invention are: the device has a simple structure, is easy to assemble and disassemble, and has low manufacturing cost. The device uses wedge-shaped blocks to allow for quick assembly and disassembly of the cover plate and collection cylinder, effectively separating the cover plate from the collection cylinder for individual processing to ensure thorough cleaning. Simultaneously, the lower end of the partition plate is spaced from the bottom surface of the collection cylinder, reducing the accumulation of low-valent titanium and its biochemical residues, ensuring smooth cleaning operations. This significantly saves cleaning time and reduces the risks associated with the cleaning process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3This is a schematic diagram of the structure after the wedge block of this utility model is inserted in another way.

[0020] Figure 4 This is a schematic diagram of the air outlet pipe of this utility model.

[0021] Attached reference numerals: 1 is cover plate, 11 is insertion hole, 2 is sealing gasket, 3 is wedge block, 4 is collection cylinder, 41 is fixing plate, 5 is air inlet pipe, 6 is air outlet pipe, and 7 is partition plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the present invention relates to a device for collecting and cleaning low-priced titanium in the exhaust gas of a sponge titanium reduction furnace, comprising a collection cylinder 4 and a cover plate 1, and a wedge block 3. The collection cylinder 4 has a fixing plate 41 spaced circumferentially at its open end, and the fixing plate 41 has a connecting hole. The cover plate 1 has an inlet pipe 5 and an outlet pipe 6 at its upper end, and a partition plate 7 at its lower end, with the inlet pipe 5 and outlet pipe 6 located on opposite sides of the partition plate 7. The cover plate 1 has through holes 11 spaced apart, and the cover plate 1 is fitted onto the fixing plate 41 through the through holes 11. The wedge block 3 is placed on the upper end of the cover plate 1 and passes through the connecting hole. Those skilled in the art will understand that this device achieves quick assembly and disassembly of the collection cylinder 4 and the cover plate 1 through the wedge block 3. Specifically, a fixing plate 41 is circumferentially spaced at the open end of the collection cylinder 4, keeping the fixing plate 41 parallel to the axial direction of the collection cylinder 4, and a connection hole is provided on the fixing plate 41. The upper end of the cover plate 1 is provided with an air inlet pipe 5 and an air outlet pipe 6, and the lower end is provided with a partition plate 7. The partition plate 7 should be spaced apart from the inner bottom of the collection cylinder 4, so that the exhaust gas entering through the air inlet pipe 5 can flow along the gap between the partition plate 7 and the collection cylinder 4 and be discharged through the air outlet pipe 6. Preferably, the air inlet pipe 5 and the air outlet pipe 6 are located on both sides of the partition plate 7, increasing the length of the exhaust gas flow channel, which facilitates the retention of as much low-valent titanium and its biochemicals in the exhaust gas as possible in the collection cylinder 4. The cover plate 1 is provided with through holes 11 at intervals. The cover plate 1 is fitted onto the fixing plate 41 through the through holes 11. The wedge block 3 is placed on the upper end of the cover plate 1 and inserted into the connecting hole. When the wedge block 3 is actually struck, the upper wedge surface acts to seal the cover plate 1 and the collecting cylinder 4. When cleaning is required, the cover plate 1 and the collecting cylinder 4 can be separated by simply striking the wedge block 3 in the opposite direction.

[0024] Preferably, the number of fixing plates 41 in the above structure is 2 to 6. Those skilled in the art will understand that, in order to ensure that the cover plate 1 and the collecting cylinder 4 are tightly attached to achieve a seal, the number of fixing plates 41 in this device is preferably 2 to 6, and in practice, the number of fixing plates 41 is preferably 3 or 4, and they are evenly arranged in a circle.

[0025] Preferably, the above structure further includes a sealing gasket 2, which is disposed between the collecting cylinder 4 and the cover plate 1. Those skilled in the art will understand that, in order to ensure the seal between the collecting cylinder 4 and the cover plate 1, this device preferably includes a sealing gasket 2 between the collecting cylinder 4 and the cover plate 1.

[0026] Preferably, in the above structure, the upper end of the collecting cylinder 4 is turned outward to form a sealing ring, so that the projection of the collecting cylinder 4 is a T-shaped structure. Those skilled in the art will understand that, in order to ensure the sealing effect between the collecting cylinder 4 and the cover plate 1, this device preferably uses the upper end of the collecting cylinder 4 to form a sealing ring, with the sealing gasket 2 actually placed on the sealing ring. The wedge block 3 can then press the cover plate 1 tightly onto the sealing gasket 2 to achieve a seal. The collecting cylinder 4, after the upper end is turned outward, has a T-shaped projection.

[0027] Preferably, the width of the baffle 7 in the above structure is adapted to the inner wall of the collecting cylinder 4. Those skilled in the art will understand that, in order to ensure that the low-valent titanium and its biochemicals entering through the inlet pipe 5 are blocked and accumulated inside the collecting cylinder 4 by the baffle 7, while the gas bypasses the baffle 7 and is discharged through the outlet pipe 6, the width of the baffle 7 in this device is adapted to the inner wall of the collecting cylinder 4, reducing the distance between the baffle 7 and the inner wall of the collecting cylinder 4, and maximizing the flow along the gap between the baffle 7 and the inner bottom surface of the collecting cylinder 4.

[0028] Preferably, in the above structure, the lower end of the baffle 7 is spaced apart from the inner bottom surface of the collecting cylinder 4. Those skilled in the art will understand that, in order to ensure smooth gas flow, it is preferable that the lower end of the baffle 7 is spaced apart from the inner bottom surface of the collecting cylinder 4.

[0029] Preferably, in the above structure, the height of the partition 7 is greater than or equal to half the depth of the collecting cylinder 4. Those skilled in the art will understand that, since the lower end of the partition 7 is spaced apart from the inner bottom surface of the collecting cylinder 4, in order to ensure the collection effect, the height of the partition 7 is preferably greater than or equal to half the depth of the collecting cylinder 4.

[0030] Preferably, in the above structure, at least one wedge block 3 has an insertion direction opposite to that of the other wedge blocks 3. Those skilled in the art will understand that, considering the on-site environment, to avoid weakening the sealing performance of the cover plate 1 and the collecting cylinder 4, this device preferably has at least one wedge block 3 with an insertion direction opposite to that of the other wedge blocks 3; that is, at least one wedge block 3 is inserted into the connecting hole from the inside out, while the remaining wedge blocks 3 are inserted from the outside in.

[0031] Preferably, the upper surface of the cover plate 1 in the above structure is a rough surface structure. Those skilled in the art will understand that, in order to increase the connection stability of the wedge block, the upper surface of the cover plate 1 is preferably rough, which increases the friction between the wedge block and the upper surface of the cover plate 1, preventing the wedge block 3 from sliding and thus weakening the seal between the cover plate 1 and the collecting cylinder 4.

[0032] Preferably, the outer walls of the air inlet pipe 5 and the air outlet pipe 6 in the above structure are serrated. Those skilled in the art will understand that, in order to ensure the sealing between the air inlet pipe 5 and the air outlet pipe 6 and the connecting pipe, the outer walls of the air inlet pipe 5 and the air outlet pipe 6 are preferably serrated.

[0033] Operation and construction process of this device 1. Collector transportation. Plug the air inlet pipe 5 and air outlet pipe 6 of the collector that needs to be removed with rubber hoses, lift it onto the transport trolley and transport it to the waste collection trough, and put it into the waste collection trough. Be sure to lift and place it gently during the handling process.

[0034] 2. Open the collector cover. Mark the cover plate 1 of the collector to facilitate the reinstallation of the cover plate 1. After removing the wedge block 3 on the collector cover inside the waste collection trough by tapping it with a hammer, remove the collector cover plate 1 and place the removed collector cover on the ground.

[0035] 3. Pour water into the collection cylinder 4 to cool it down. The cooling water pipe is located at least 3 meters away from the collection tank, and a 2-meter-long seamless steel pipe is connected to the water pipe to ensure that the construction personnel maintain a safe distance from the collector when watering, so as to prevent injury to personnel caused by the flash explosion of low-valence titanium in the collector when it comes into contact with water.

[0036] 4. Stirring the inside of the collector. To prevent the low-valent titanium from being insufficiently soaked in the collector during watering, which could cause a flash explosion when poured, the construction personnel need to use a 2-meter-long stirring rod to stir the collector 4 to ensure that the low-valent titanium and its biochemicals in the collector 4 are completely wetted.

[0037] 5. Pour out the remaining material in the collector. After the low-valent titanium and its biochemicals in the collection cylinder 4 are thoroughly wetted with water, pour the biochemicals in the collection cylinder 4 into the collection tank, and rinse the inner wall of the collector with water.

[0038] 6. Cover the collector. After cleaning the inside of the collection cylinder 4, unblock the air inlet pipe 5 and air outlet pipe 6 of the cover plate 1, install the sealing gasket 2 between the collection cylinder 4 and the cover plate 1, install the cover plate 1, and tighten the wedge block 3.

[0039] 7. Collector transportation and storage: After cleaning and repackaging, place the collectors on a transport trolley and move them to the storage area. Inform the personnel on duty that the collectors are ready for use.

[0040] 8. Transport the collection tank containing the low-valent titanium removed by the collector to the waste disposal point designated by the plant. After emptying the low-valent titanium and its biochemicals from the collection tank, hoist the empty collection tank back to its original location for the next time to hold the low-valent titanium in the collector.

Claims

1. A device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace, comprising a collection cylinder (4) and a cover plate (1), characterized in that: It also includes a wedge block (3), and a fixing plate (41) is circumferentially spaced at the upper opening end of the collection cylinder (4), and a connection hole is provided on the fixing plate (41); an air inlet pipe (5) and an air outlet pipe (6) are provided at the upper end of the cover plate (1), and a partition plate (7) is provided at the lower end, and the air inlet pipe (5) and the air outlet pipe (6) are located on both sides of the partition plate (7), and an insertion hole (11) is provided at intervals on the cover plate (1), and the cover plate (1) is sleeved on the fixing plate (41) through the insertion hole (11), and the wedge block (3) is placed at the upper end of the cover plate (1) and inserted into the connection hole.

2. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The number of the fixing plates (41) is 2 to 6.

3. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: It also includes a sealing gasket (2), which is disposed between the collection cylinder (4) and the cover plate (1).

4. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The upper end of the collecting cylinder (4) is turned outward to form a sealing ring, so that the projection of the collecting cylinder (4) is a T-shaped structure.

5. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The width of the partition (7) is adapted to the inner wall of the collection cylinder (4).

6. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The lower end of the partition (7) is spaced apart from the bottom surface of the collection cylinder (4).

7. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 6, characterized in that: The height of the partition (7) is greater than or equal to 1 / 2 of the depth of the collection tube (4).

8. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: At least one wedge (3) has an insertion direction opposite to that of the other wedges (3).

9. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The upper surface of the cover plate (1) has a rough surface structure.

10. The device for collecting and cleaning low-priced titanium from the tail gas of a sponge titanium reduction furnace as described in claim 1, characterized in that: The outer walls of the air inlet pipe (5) and the air outlet pipe (6) are serrated.

Images