Roasting denitration equipment

Abstract

The utility model relates to the technical field of denitration equipment, in particular to roasting denitration equipment which comprises a barrel, a fan, a filter plate, a denitration catalyst, an access door and a support frame, the fan is mounted at the air outlet pipe of the barrel, and an air inlet of the fan is communicated with the air outlet pipe of the barrel; the supporting frame is arranged on the inner side of the cylinder body, and a spiral plate used for enabling roasted flue gas to spirally move in the cylinder body in the using state is arranged on the outer side of the supporting frame; flue gas is driven by the fan to spirally move on the inner side of the barrel along the spiral plate, and sequentially passes through the filter plates and the denitration catalyst in the moving process, so that the filter plates and the denitration catalyst respectively filter and adsorb granular nitrogen oxides in the flue gas, the flue gas purification effect is improved, and the flue gas can be purified by opening the access door. The spiral plate drives the filter plate and the denitration catalyst to rotate to the access door, so that the filter plate and the denitration catalyst are more convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of denitrification equipment technology, specifically to a roasting denitrification equipment. Background Technology

[0002] When carbon products are manufactured, they need to be roasted at high temperature in a roasting furnace. During the roasting process, flue gas containing nitrogen oxides is generated. When the flue gas is emitted, it needs to be denitrified to purify the nitrogen oxides in the flue gas.

[0003] Chinese patent document CN212819059U discloses a denitrification device for calcining furnace flue gas, including a denitrification cylinder, a cooling cylinder, a heat collection cylinder, a blower base, and a chimney; the denitrification cylinder, cooling cylinder, and heat collection cylinder are all double-layered hollow cylinders, and are connected in the middle; the top of the denitrification cylinder is fixedly connected to the cooling cylinder through a filter device; the bottom of the denitrification cylinder is fixedly connected to the heat collection cylinder, and the middle partition between the denitrification cylinder and the heat collection cylinder is connected; the bottom of the heat collection cylinder is fixedly connected to the blower base through an airtight flange; several air inlet valves are evenly distributed on the outer wall of the airtight flange, and the air inlet valves are vertically connected to the heat collection cylinder through the airtight flange; the middle partition between the denitrification cylinder and the cooling cylinder is connected through several bypass pipes; the chimney is fixedly connected to the top of the cooling cylinder; the middle partition between the cooling cylinder and the heat collection cylinder is respectively connected to a water inlet and a water outlet.

[0004] However, in the above scheme, the top of the denitrification cylinder is fixedly connected to the cooling cylinder through a filter device, and the middle partition between the denitrification cylinder and the cooling cylinder is connected by several bypass pipes. The filter device consists of a fixed filter frame and a movable filter frame. The fixed filter frame is fixedly connected to the outer cylinder of the denitrification cylinder. When in use, the denitrification cylinder and the cooling cylinder are fixedly connected through bypass pipes, which means that when the movable filter frame is opened, only the filter screen can be cleaned and maintained, making the replacement and maintenance of the catalyst nitrogen absorption screen inconvenient. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a roasting denitrification device.

[0006] The technical solution of this utility model is: a roasting denitrification device, including a cylinder, a fan, a filter plate, a denitrification catalyst, an inspection door, and a support frame;

[0007] The fan is installed at the air outlet pipe of the cylinder, and the air inlet of the fan is connected to the air outlet pipe of the cylinder;

[0008] The support frame is located inside the cylinder, and the outside of the support frame is provided with a spiral plate for spirally moving the calcined flue gas inside the cylinder during use.

[0009] There are multiple filter plates, which are arranged at equal angles to the center of the spiral plate inside the spiral plate, and their ends are connected to the support frame.

[0010] The denitrification catalyst is installed on the inside of the filter plate, and the denitrification catalyst is arranged in a one-to-one correspondence with the filter plate;

[0011] The inspection door is installed in the middle of the outer circumference of the cylinder and is arranged along the length of the cylinder.

[0012] Preferably, the filter plate has an installation groove in the middle, and the opening of the installation groove faces the inner wall of the cylinder. When the filter plate and the denitrification catalyst are installed together, the denitrification catalyst is contained in the installation groove.

[0013] Preferably, filter holes are provided on both sides of the filter plate, and the filter holes on both sides are connected to the mounting groove.

[0014] Preferably, the support frame includes a connecting rod and a support rod;

[0015] There are two support rods, which are symmetrically installed at both ends of the inner side of the cylinder.

[0016] The connecting rod is rotatably mounted on two support rods, and the connecting rod is coaxially arranged with the cylinder.

[0017] Preferably, the outer edge of the spiral plate and the end of the filter plate are both fitted and connected to the inner wall of the cylinder.

[0018] Preferably, the access door includes a cover plate, a latch, and hinges;

[0019] One end of the hinge is installed on the outside of the cylinder;

[0020] The cover plate is installed at the other end of the hinge and covers the outer circumference of the cylinder;

[0021] The locking buckle is located on the outer circumference of the cylinder and is connected to the cover plate.

[0022] Preferably, the outer circular surface of the cylinder is provided with an inspection hole, and a cover plate is placed on the inspection hole, the size of the cover plate being larger than the size of the inspection hole.

[0023] Preferably, the side of the cover plate is provided with a protrusion extending into the inspection hole, and a sealing gasket is provided at the edge of the protrusion. When the cover plate and the cylinder are installed together, the protrusion and the sealing gasket are accommodated in the inspection hole.

[0024] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0025] This invention uses a fan to drive the flue gas to move spirally along a spiral plate inside the cylinder. During the movement, the flue gas passes through multiple filter plates and a denitrification catalyst in sequence. The filter plates and the denitrification catalyst filter and adsorb particulate nitrogen oxides in the flue gas, thereby improving the flue gas purification effect. By opening the maintenance door, the spiral plate drives the filter plates and the denitrification catalyst to the maintenance door, making the maintenance of the filter plates and the denitrification catalyst more convenient. Attached Figure Description

[0026] Figure 1 This is a perspective view of one embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the inspection door structure in one embodiment of the present invention.

[0028] Figure 3 This is a cross-sectional schematic diagram of the cylindrical structure in one embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the connection structure between the spiral plate and the filter plate in one embodiment of the present invention.

[0030] Reference numerals: 1. Cylinder; 2. Cover plate; 3. Lock; 4. Hinge; 5. Fan; 6. Spiral plate; 7. Sealing gasket; 8. Filter plate; 9. Protrusion; 10. Denitrification catalyst; 11. Mounting groove; 12. Filter hole; 13. Connecting rod; 14. Support rod; 15. Inspection hole. Detailed Implementation

[0031] Example 1, as Figure 1-4 As shown, the present invention proposes a calcination denitrification device, which includes a cylinder 1, a blower 5, a filter plate 8, a denitrification catalyst 10, an inspection door, and a support frame.

[0032] The fan 5 is installed at the air outlet pipe of the cylinder 1, and the air inlet of the fan 5 is connected to the air outlet pipe of the cylinder 1.

[0033] The support frame is set inside the cylinder 1, and the outside of the support frame is provided with a spiral plate 6 for spirally moving the calcined flue gas inside the cylinder 1 during use.

[0034] There are multiple filter plates 8, which are arranged at equal angles to the center of the spiral plate 6 inside the spiral plate 6, and their ends are connected to the support frame. It should be noted that the outer edge of the spiral plate 6 and the ends of the filter plates 8 are both in close contact with the inner wall of the cylinder 1. When the support frame rotates in the middle, the spiral plate 6 and the filter plates 8 are slidably connected to the inner wall of the cylinder 1, so that the spiral plate 6 and the filter plates 8 have a sealing effect with the cylinder 1.

[0035] The denitrification catalyst 10 is installed on the inner side of the filter plate 8, and the denitrification catalyst 10 and the filter plate 8 are arranged in a one-to-one correspondence.

[0036] The inspection door is installed in the middle of the outer circular surface of the cylinder 1 and is arranged along the length of the cylinder 1.

[0037] In this embodiment, multiple filter plates 8 are installed at equal angles in the spiral path of the spiral plate 6, and the denitrification catalyst 10 is installed in the filter plates 8. The fan 5 draws the flue gas into the inner side of the cylinder 1, causing the flue gas to flow into the inner side of the cylinder 1 and move spirally along the spiral plate 6. The flue gas passes through multiple filter plates 8 in sequence in the spiral path of the spiral plate 6 and moves towards the fan 5, so that the multiple filter plates 8 filter the particles in the flue gas respectively, and the denitrification catalyst 10 in the middle of the filter plate 8 adsorbs the nitrogen oxides in the flue gas, thereby improving the flue gas purification effect. At the same time, the fan 5 discharges the purified flue gas to the outside of the cylinder 1. By opening the maintenance door, the denitrification catalyst 10 can be taken out from the inside of the filter plate 8, and the sides of the filter plate 8 can be cleaned, making the maintenance of the filter plate 8 and the denitrification catalyst 10 more convenient.

[0038] Example 2, as Figure 1-2 As shown, the present invention proposes a calcination denitrification device. Compared with the first embodiment, the difference in this embodiment is that the filter plate 8 is provided with an installation groove 11 in the middle, and the opening of the installation groove 11 faces the inner wall of the cylinder 1. When the filter plate 8 and the denitrification catalyst 10 are installed together, the denitrification catalyst 10 is accommodated in the installation groove 11. Filter holes 12 are provided on both sides of the filter plate 8, and the filter holes 12 on both sides are connected to the installation groove 11.

[0039] In this embodiment, the denitrification catalyst 10 is installed in the mounting groove 11, so that the installation of the denitrification catalyst 10 is protected, and the flue gas passes through the filter holes 12 on both sides of the filter plate 8, so that the flue gas can be effectively filtered and the particulate matter in the flue gas can be removed when passing through the filter plate 8, thus avoiding the clogging of the denitrification catalyst 10.

[0040] Example 3, as Figure 1-2 As shown, the roasting denitrification device proposed in this utility model differs from that in Embodiment 1 in that the support frame includes a connecting rod 13 and a support rod 14.

[0041] There are two support rods 14, which are symmetrically installed at both ends of the inner side of the cylinder 1;

[0042] The connecting rod 13 is rotatably mounted on two support rods 14, and the connecting rod 13 is coaxially arranged with the cylinder 1.

[0043] In this embodiment, the connecting rod 13 is rotatably connected to the support rod 14, so that the connecting rod 13 drives the filter plate 8 to rotate inside the cylinder 1 toward the maintenance door, making the inspection and maintenance of the filter plate 8 and the denitrification catalyst 10 more convenient.

[0044] Example 4, as Figure 1-2 As shown, the present invention proposes a calcination denitrification device. Compared with the first embodiment, the difference in this embodiment is that the inspection door includes a cover plate 2, a latch 3, and a hinge 4.

[0045] One end of hinge 4 is installed on the outside of cylinder 1;

[0046] The cover plate 2 is installed on the other end of the hinge 4 and covers the outer circular surface of the cylinder 1. The cover plate 2 is arc-shaped, and the inner arc diameter is arranged to match the outer diameter of the cylinder 1.

[0047] The latch 3 is set on the outer circular surface of the cylinder 1 and connected to the cover plate 2.

[0048] In an optional embodiment, the outer circular surface of the cylinder 1 is provided with an inspection hole 15, and the cover plate 2 covers the inspection hole 15, the size of the cover plate 2 being larger than the size of the inspection hole 15.

[0049] In an optional embodiment, the side of the cover plate 2 is provided with a protrusion 9 extending into the inspection hole 15, and a sealing gasket 7 is provided at the edge of the protrusion 9. When the cover plate 2 and the cylinder 1 are installed together, the protrusion 9 and the sealing gasket 7 are accommodated in the inspection hole 15. It should be noted that the side of the protrusion 9 may be provided with a baffle extending into the inside of the cylinder 1 to prevent the flue gas from driving the spiral plate 6 to rotate inside the cylinder 1.

[0050] In this embodiment, the cover plate 2 is closed onto the inspection hole 15 by the cooperation of the latch 3 and the hinge 4, thereby sealing the inspection hole 15. At the same time, the cover plate 2 drives the sealing gasket 7 and the protrusion 9 to fill the inspection hole 15, so that the inner wall of the cylinder 1, the edge of the spiral plate 6, and the end of the filter plate 8 are in a sealed state. By opening the latch 3, the cover plate 2 rotates on the cylinder 1 with the other end of the hinge 4, thereby opening the inspection hole 15. The spiral plate 6 is moved by the operator, causing the spiral plate 6 to drive the filter plate 8 to rotate inside the cylinder 1. Multiple filter plates 8 and denitrification catalyst 10 are moved sequentially to the inspection hole 15 for inspection and maintenance, making the inspection and maintenance of filter plates 8 and denitrification catalyst 10 more convenient and quick.

[0051] In summary, in this invention, multiple filter plates 8 are installed at equal angles in the spiral path of the spiral plate 6, and the denitrification catalyst 10 is installed in the mounting groove 11. Simultaneously, the blower 5 draws air from the inside of the cylinder 1, creating a negative pressure inside the cylinder 1. This causes the flue gas to flow inwards and spiral along the spiral plate 6 to the blower 5. During this movement, the flue gas passes through multiple filter plates 8 sequentially in the spiral path of the spiral plate 6 before moving towards the blower 5. The filter holes 12 of the multiple filter plates 8 filter the particles in the flue gas, and the denitrification catalyst in the middle of the filter plates 8 further filters the gas. Agent 10 adsorbs nitrogen oxides in flue gas, improving the flue gas purification effect. At the same time, the fan 5 discharges the purified flue gas to the outside of the cylinder 1. By opening the latch 3, the cover plate 2 rotates on the cylinder 1 along with the other end of the hinge 4, opening the inspection hole 15. Through the inspection hole 15, the operator can move the spiral plate 6, causing the spiral plate 6 to drive the filter plate 8 to rotate inside the cylinder 1. Multiple filter plates 8 and denitrification catalyst 10 are moved sequentially to the inspection hole 15 for inspection and maintenance, making the inspection and maintenance of filter plates 8 and denitrification catalyst 10 more convenient and quick.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A roasting denitrification device, characterized in that, Includes cylinder (1), fan (5), filter plate (8), denitrification catalyst (10), inspection door and support frame; The fan (5) is installed at the air outlet pipe of the cylinder (1), and the air inlet of the fan (5) is connected to the air outlet pipe of the cylinder (1); The support frame is set inside the cylinder (1), and the outside of the support frame is provided with a spiral plate (6) for moving the calcined flue gas spirally inside the cylinder (1) during use. The number of filter plates (8) is multiple. Multiple filter plates (8) are arranged at equal angles to the center of the spiral plate (6) inside the spiral plate (6), and their ends are connected to the support frame. The denitrification catalyst (10) is installed on the inner side of the filter plate (8), and the denitrification catalyst (10) and the filter plate (8) are arranged in a one-to-one correspondence; The inspection door is installed in the middle of the outer circular surface of the cylinder (1) and is arranged along the length of the cylinder (1).

2. The roasting denitrification equipment according to claim 1, characterized in that, The filter plate (8) has an installation groove (11) in the middle, and the opening of the installation groove (11) faces the inner wall of the cylinder (1). When the filter plate (8) and the denitrification catalyst (10) are installed together, the denitrification catalyst (10) is accommodated in the installation groove (11).

3. The roasting denitrification equipment according to claim 2, characterized in that, The filter plate (8) has filter holes (12) on both sides, and the filter holes (12) on both sides are connected to the mounting groove (11).

4. The roasting denitrification equipment according to claim 1, characterized in that, The support frame includes a connecting rod (13) and a support rod (14). There are two support rods (14), which are symmetrically installed at both ends of the inner side of the cylinder (1); The connecting rod (13) is rotatably mounted on two support rods (14), and the connecting rod (13) is coaxially arranged with the cylinder (1).

5. The roasting denitrification equipment according to claim 1, characterized in that, The outer edge of the spiral plate (6) and the end of the filter plate (8) are both attached to the inner wall of the cylinder (1).

6. The roasting denitrification equipment according to claim 1, characterized in that, The access door includes a cover plate (2), a latch (3), and a hinge (4); One end of the hinge (4) is installed on the outside of the cylinder (1); The cover plate (2) is installed at the other end of the hinge (4) and covers the outer circular surface of the cylinder (1); The latch (3) is set on the outer circular surface of the cylinder (1) and connected to the cover plate (2).

7. The roasting denitrification equipment according to claim 6, characterized in that, The outer circular surface of the cylinder (1) is provided with an inspection hole (15), and the cover plate (2) is placed on the inspection hole (15). The size of the cover plate (2) is larger than the size of the inspection hole (15).

8. The roasting denitrification equipment according to claim 7, characterized in that, The side of the cover plate (2) is provided with a protrusion (9) extending into the inspection hole (15), and a sealing gasket (7) is provided at the edge of the protrusion (9). When the cover plate (2) and the cylinder (1) are installed together, the protrusion (9) and the sealing gasket (7) are accommodated in the inspection hole (15).

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