Smoke exhaust device of carbon product roasting furnace

Abstract

The utility model belongs to the technical field of carbon product production equipment, and particularly discloses a carbon product roasting furnace smoke exhaust device which comprises a main flue, the two ends of the main flue are both of an opening structure, an opening in one end is communicated with an external smoke exhaust outlet, and an access cover plate is movably connected to an opening in the other end. A first supporting device is arranged at the bottom of one end, close to the access cover plate, of the main flue, and a second supporting device is arranged at the bottom of the other end; the bottom of the main flue is provided with a plurality of telescopic hoses used for being connected with a smoke outlet of a roasting furnace, the top of the main flue is fixedly connected with two or more hanging rings, the hanging rings are of a U-shaped or U-shaped structure, and the opening direction of the hanging rings faces the axial extending direction of the main flue. The lifting device is simple in structure, convenient to operate, stable in overall structure, not prone to abrasion and deformation and high in practicability, and the lifting rings are not prone to falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon product production equipment, and particularly relates to a smoke exhaust device for a carbon product roasting furnace. Background Art

[0002] Carbon products are an important industrial raw material, and different types of products are mainly made of carbon, such as graphite electrode type, carbon block type, graphite anode type, carbon electrode type, paste type, and electro-carbon type, etc. Carbon products have a variety of excellent properties and are widely used in many fields.

[0003] During the preparation process of carbon products, a roasting furnace is usually used for roasting to improve its performance. After high-temperature heat treatment in the roasting furnace, the mechanical strength, electrical conductivity, and high-temperature resistance of the product can be significantly improved. However, a large amount of flue gas is generated during the use of the roasting furnace, and these flue gases are usually effectively discharged by a smoke exhaust device to prevent the flue gas from accumulating in the furnace and ensure the normal operation of the roasting furnace. However, the existing smoke exhaust detection device is not reasonably designed. For example, the hard connection at the interface is prone to deformation, and it is not easy to align with the smoke exhaust port of the roasting furnace when moving the smoke exhaust device. There is no support leg, resulting in easy wear, and the lifting ring is prone to slipping off, etc. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a smoke exhaust device for a carbon product roasting furnace, which has a simple structure, is easy to operate, the overall structure is stable and not easy to wear and deform, and the lifting ring is not easy to fall off, and has strong practicability.

[0005] The technical solution adopted to achieve the purpose of the utility model is as follows:

[0006] A smoke exhaust device for a carbon product roasting furnace includes a main flue. Both ends of the main flue are open structures. One end of the opening is communicated with an external smoke exhaust outlet, and a maintenance cover plate is movably connected to the opening at the other end. And a first support device is arranged at the bottom of the main flue near the maintenance cover plate, and a second support device is arranged at the bottom of the other end; several telescopic hoses for connecting with the smoke exhaust port of the roasting furnace are arranged at the bottom of the main flue, and two or more lifting rings are fixedly connected to the top. The lifting rings are in a concave shape or U-shaped structure, and the opening direction of the lifting ring extends along the axial direction of the main flue.

[0007] Furthermore, a branch flue is also arranged between the telescopic hose and the main flue. One end of the branch flue is communicated with the main flue, and the other end is communicated with the telescopic hose; an electric control valve is also included and is arranged between the branch flue and the telescopic hose. And the top of the electric control valve is fixedly connected to the branch flue through a first flange, and the bottom is fixedly connected to the telescopic hose through a second flange.

[0008] Further, it further includes a plurality of temperature sensors disposed on the main flue, the number of temperature sensors corresponding to the number of telescopic hoses, and each temperature sensor being disposed on the main flue above the telescopic hose.

[0009] Further, it further includes a negative pressure sensor disposed on the main flue.

[0010] Further, the second support device includes a support plate and a lifting bracket, wherein the support plate is fixed to the bottom of the main flue, and the lifting bracket is fixed to the bottom of the support plate.

[0011] Further, a control device is also provided on the support plate.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, a telescopic hose is used for flexible connection, which is not easily deformed, facilitates flexible adjustment of the position, is convenient to use, has strong operability, and greatly improves the work efficiency.

[0014] 2. The hanging ring of the present utility model has a concave or U-shaped structure, and the opening direction of the hanging ring extends along the axial direction of the main flue. During use, the hook can directly hook the opening of the hanging ring, which is convenient for cooperation with the hook of the crane, is not easily detached, and has strong operability. Moreover, the shape and depth of the opening of the hanging ring are not affected by the thickness of the hanging ring, and the thickness of the hanging ring can be increased flexibly, and it is not easily deformed during the hoisting process, and has good practicability.

[0015] 3. The present utility model is provided with a maintenance cover plate at the opening of the main flue. When maintenance is required, the maintenance cover plate is opened, which is convenient for the staff to enter the main flue for maintenance and repair.

[0016] 4. The present utility model designs the second support device as a combination of a support plate and a lifting bracket, which is convenient for adjusting the height of one end of the main flue to keep the main flue placed in balance during use, and at the same time, it can also avoid the wear caused by the direct contact between the main flue and the top of the roasting furnace. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further explain the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] In the figure: 1. Main flue; 2. Maintenance cover plate; 3. First support device; 4. Second support device; 5. Roaster; 6. Flexible hose; 7. Suspension ring; 8. Branch flue; 9. Electric control valve; 10. First flange; 11. Second flange; 12. Temperature sensor; 13. Negative pressure sensor; 14. High-temperature resistant hose; 15. Electric control box; 16. Human-machine interaction screen;

[0020] 401. Support plate; 402. Lifting bracket. Specific implementation manner

[0021] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are partial embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0022] As Figure 1 shown, a smoke exhaust device for a carbon product roaster includes a main flue 1. Both ends of the main flue 1 are open structures. One end of the opening is communicated with an external smoke exhaust outlet, and a maintenance cover plate 2 is movably connected to the opening at the other end. A first support device 3 is provided at the bottom of the main flue 1 near the maintenance cover plate 2, and a second support device 4 is provided at the bottom of the other end. A plurality of flexible hoses 6 for connecting to the smoke exhaust port of the roaster 5 are provided at the bottom of the main flue 1, and two or more suspension rings 7 are fixedly connected to the top. The shape of the suspension ring 7 is a concave shape or a U-shaped structure, and the opening direction of the suspension ring 7 extends along the axial direction of the main flue 1.

[0023] The smoke exhaust device of the present utility model is applied to the existing carbon product roaster 5 and is mainly used to exhaust the gases generated during the processing of the roaster 5. During the actual working process, each roasting system includes a plurality of furnace bodies arranged in parallel to meet the roasting requirements for different products. The smoke exhaust device of the present utility model cooperates with a single furnace body during the actual process. When one furnace body completes processing, the external crane hooks the suspension ring 7, moves the smoke exhaust device above the adjacent furnace body, and connects it to the smoke exhaust port of the furnace body. In this way, the cycle continues until the materials in the last row of furnace bodies in the entire roasting system are discharged.

[0024] The main flue 1 mainly communicates with the smoke exhaust port of the roaster 5 through the flexible hose 6, so as to discharge the gases generated during the roasting process. Its pipe diameter is usually large to achieve smooth smoke exhaust. A plurality of smoke exhaust ports matching the main flue 1 are provided above a single furnace body of the roaster 5 (since Figure 1The medium roasting furnace 5 is directly connected to the smoke exhaust device, so the smoke exhaust port is not shown). In the traditional processing method, a rigid connection is usually adopted between the main flue 1 and the furnace body. The furnace will deform after long-term use, and it is inconvenient to align the position of the smoke exhaust port of the furnace body every time the smoke exhaust device is moved. In the present utility model, a telescopic hose 6 is used for flexible connection, which is not easy to deform and is convenient for flexible adjustment of the position. Even if it is not aligned with the smoke exhaust port, the connection can be achieved by contracting or stretching the telescopic hose 6. It is convenient to use and has strong operability, greatly improving the work efficiency. In the present utility model, the diameter of the main flue 1 is 800 mm; the telescopic hose 6 is a corrugated pipe, and one end thereof cooperating with the smoke exhaust port of the roasting furnace 5 is a smoke suction port, and the diameter of the smoke suction port of the telescopic hose 6 is 400 mm.

[0025] In the present utility model, a maintenance cover plate 2 is movably connected to one end of the main flue 1 to facilitate the regular maintenance and inspection of the main flue 1. In actual design, the maintenance cover plate 2 can be opened to form an inlet of the main flue 1, and the staff can enter the main flue 1 through the inlet for maintenance and inspection. The above-mentioned movable connection method is a hinge connection or a flange connection. When it is a hinge connection, the maintenance cover plate 2 is similar to the function of a door, and it only needs to be pulled open when in use; when it is a flange connection, the whole maintenance cover plate 2 needs to be removed before entering the main flue 1.

[0026] The first support device 3 and the second support device 4 are provided to separate the main flue 1 from the roasting furnace 5 below, so as to prevent the main flue 1 from directly contacting the furnace 5 and pressing the smoke exhaust port, and also to prevent the roasting furnace 5 from wearing the main flue 1, and to facilitate the observation during the docking of the telescopic hose 6 and the smoke exhaust port.

[0027] The lifting rings 7 on the main flue 1 are convenient for cooperating with a crane to move the smoke exhaust device. The number of lifting rings 7 is more than two and they are evenly distributed on the main flue 1 to maintain balance when the crane moves the smoke exhaust device. The traditional lifting ring 7 is a one-piece L-shaped plate structure, and an opening is designed at the corner as the penetration point of the crane hook. The opening of this structure is a closed structure, and it is difficult to align the opening with the crane hook when cooperating with the crane. Moreover, the thickness of the one-piece L-shaped plate structure is relatively thin, and it is easy to deform during the hoisting process. If its thickness is increased, the depth of the opening will also be deeper, which is not easy to cooperate with the hook. Based on the defects of the traditional lifting ring 7, the lifting ring of the present utility model is a concave-shaped or U-shaped structure, and the opening direction of the lifting ring extends along the axial direction of the main flue. When in use, the hook directly hooks the opening of the lifting ring, which is convenient for cooperating with the hook of the crane, not easy to fall off, and has strong operability. And the shape and depth of the opening of the lifting ring are not affected by the thickness of the lifting ring, and the thickness of the lifting ring can be increased flexibly, and it is not easy to deform during the hoisting process, and it has good practicability.

[0028] In the present utility model, a branch flue 8 is further provided between the flexible hose and the main flue 1. One end of the branch flue 8 is communicated with the main flue 1, and the other end is communicated with the telescopic flexible hose 6. It further includes an electric control valve 9 disposed between the branch flue 8 and the telescopic flexible hose 6. The top of the electric control valve 9 is fixedly connected to the branch flue 8 through a first flange 10, and the bottom is fixedly connected to the telescopic flexible hose 6 through a second flange 11.

[0029] The provided branch flue 8 in the present utility model facilitates the connection between the telescopic flexible hose 6 and the main flue 1. The electric control valve 9 is mainly used to adjust the flow rate entering the main flue 1, and further realizes the adjustment of the negative pressure in the main flue 1.

[0030] In the present utility model, a plurality of temperature sensors 12 are provided on the main flue 1. The number of the temperature sensors 12 corresponds to the number of the telescopic flexible hoses 6, and each temperature sensor 12 is disposed on the main flue 1 above the telescopic flexible hose 6. The temperature monitoring probe of the temperature sensor 12 is disposed inside the main flue 1 to facilitate the detection of the temperature inside the main flue 1. In an embodiment of the present utility model, the temperature sensor 12 can be directly connected to an external control platform through a wireless connection method. In another embodiment of the present utility model, each temperature sensor 12 is connected to a temperature dashboard (the temperature dashboard is not drawn) through a wired connection method. During use, the data on the dashboard can be directly read. In this embodiment, a high-temperature resistant flexible hose 14 is provided outside the connection line between the temperature sensor 12 and the temperature dashboard, specifically as Figure 1 shown.

[0031] In the present utility model, a negative pressure sensor 13 is further provided on the main flue 1. The negative pressure monitoring probe of the negative pressure sensor 13 is disposed inside the main flue 1 to facilitate the detection of the negative pressure inside the main flue 1. The negative pressure sensor 13 is disposed at one end of the main flue 1 close to the smoke exhaust outlet and is directly connected to an external control platform through a wireless connection method.

[0032] The second support device 4 of the present utility model includes a support plate 401 and a lifting bracket 402. Among them, the support plate 401 is fixed to the bottom of the main flue 1, and the lifting bracket 402 is fixed to the bottom of the support plate 401. During the roasting process, considering the production use cycle, the furnace body of the roasting furnace 5 will deform over time due to high temperature and other conditions, resulting in the uneven placement of the entire system. Therefore, the second support device 4 of the present utility model is designed as a combination of the support plate 401 and the lifting bracket 402 to facilitate the adjustment of the height of one end of the main flue 1, so as to keep the main flue 1 placed in balance during use, and at the same time, it can also avoid the wear caused by the direct contact between the main flue and the top of the roasting furnace 5. The lifting bracket 402 of the present utility model is a common lifting device in the prior art, and it can achieve the lifting effect. For example, a telescopic cylinder or an inserted pin (in this method, it mainly includes inner and outer sleeves, and through holes are opened on both the inner and outer sleeves, and the relative distance between the inner and outer sleeves, that is, the height, is adjusted by inserting a pin into the through hole) can be used to control the height.

[0033] In the above structure, a control device is also provided on the support plate 401. The control device includes components such as an electric control box 15, a human-machine interaction screen 16, and an internal PLC controller. Various sensors arranged on the main flue 1 can be connected to the control device through wireless or wired connection methods, so as to reflect the detected values on the human-machine interaction screen 16, and the situation inside the main flue 1 can be understood through the detected values. And the electric control valve 9 is connected to the control device, and the staff can control the state of the electric control valve 9 through the human-machine interaction screen 16. The box material of the electric control box 15 is above IP54 level (IP54 level is the protection level (dust and water protection level) of the enclosures of electrical and electronic products. That is, the dust protection level is 5: It is impossible to completely prevent dust intrusion, but the amount of intruded dust will not affect the normal operation of the product; the water protection level is 4: Prevent the intrusion of splashing water, prevent the intrusion of water splashing from all directions.). And the electric control box 15 is equipped with an industrial air-conditioning radiator.

[0034] The specific implementation manners described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only the specific implementation methods of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the main idea of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A smoke exhaust device for a carbon product roasting furnace, comprising a main flue (1), characterized in that: Both ends of the main flue (1) are open structures, wherein the opening at one end is connected to an external smoke exhaust outlet, and the opening at the other end is movably connected to an inspection cover (2), and a first supporting device (3) is provided at the bottom of one end of the main flue (1) close to the inspection cover (2), and a second supporting device (4) is provided at the bottom of the other end; a plurality of telescopic hoses (6) for connecting to a smoke exhaust outlet of a roasting furnace (5) are provided at the bottom of the main flue (1), and more than two lifting rings (7) are fixedly connected to the top, the shape of the lifting ring (7) is a concave or U-shaped structure, and the opening direction of the lifting ring (7) is toward the axial extension direction of the main flue (1).

2. The smoke exhaust device for a carbon product roasting furnace according to claim 1, characterized in that: A branch flue (8) is also provided between the telescopic hose (6) and the main flue (1), one end of the branch flue (8) being in communication with the main flue (1) and the other end being in communication with the telescopic hose (6); an electric regulating valve (9) is also provided between the branch flue (8) and the telescopic hose (6), and the top of the electric regulating valve (9) is fixedly connected to the branch flue (8) via a first flange (10), and the bottom of the electric regulating valve (9) is fixedly connected to the telescopic hose (6) via a second flange (11).

3. The smoke exhaust device for a carbon product roasting furnace according to claim 1 or 2, characterized in that: It also includes a plurality of temperature sensors (12) arranged on the main flue (1), the number of the temperature sensors (12) corresponding to the number of the telescopic hoses (6), and each temperature sensor (12) is arranged on the main flue (1) above the telescopic hose (6).

4. The smoke exhaust device for a carbon product roasting furnace according to claim 1 or 2, characterized in that: It also includes a negative pressure sensor (13) arranged on the main flue (1).

5. The smoke exhaust device for a carbon product roasting furnace according to claim 3, characterized in that: It also includes a negative pressure sensor (13) arranged on the main flue (1).

6. The smoke exhaust device for a carbon product roasting furnace according to claim 1, 2 or 5, characterized in that: The second supporting device (4) comprises a supporting plate (401) and a lifting bracket (402), wherein the supporting plate (401) is fixed to the bottom of the main flue (1), and the lifting bracket (402) is fixed to the bottom of the supporting plate (401).

7. The smoke exhaust device for a carbon product roasting furnace according to claim 3, characterized in that: The second supporting device (4) comprises a supporting plate (401) and a lifting bracket (402), wherein the supporting plate (401) is fixed to the bottom of the main flue (1), and the lifting bracket (402) is fixed to the bottom of the supporting plate (401).

8. The smoke exhaust device for a carbon product roasting furnace according to claim 4, characterized in that: The second supporting device (4) comprises a supporting plate (401) and a lifting bracket (402), wherein the supporting plate (401) is fixed to the bottom of the main flue (1), and the lifting bracket (402) is fixed to the bottom of the supporting plate (401).

9. The smoke exhaust device for a carbon product roasting furnace according to claim 6, characterized in that: A control device is also provided on the support plate (401).

10. The smoke exhaust device for a carbon product roasting furnace according to claim 7 or 8, characterized in that: A control device is also provided on the support plate (401).

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