A heat preservation pipe for smelter flue gas

Abstract

The utility model discloses a kind of mineral heat furnace flue gas heat preservation pipes, including exhaust pipe seat outer lining pipe, the top of exhaust pipe seat central part is fixedly connected with heat preservation pipe, one end of exhaust pipe seat away from heat preservation pipe is fixedly connected with socket, the end of socket away from exhaust pipe seat bottom is fixedly connected with bottom disc, the end of bottom disc away from socket is installed with gasket, the outer wall front end of exhaust pipe seat is fixedly connected with control box, the inner frame front end of control box is fixedly connected with frame plate, the surface of frame plate is equipped with perforation, and perforation part is installed with arc water pipe. The mineral heat furnace flue gas heat preservation pipe, the flue gas heat preservation pipe, by setting heat preservation pipe, can effectively reduce heat loss in the conveying process of flue gas, improve the utilization rate of flue gas waste heat, reach the purpose of energy saving, simultaneously, outer lining pipe plays a protective role to heat preservation pipe, prolongs the service life of heat preservation pipe.

Description

Technical Field

[0001] This utility model relates to the field of flue gas insulation pipe, specifically a flue gas insulation pipe for a submerged arc furnace. Background Technology

[0002] Industrial production processes generate large amounts of heat-containing flue gas, which needs to be transported through pipelines. To reduce heat loss during transport, improve energy efficiency, and prevent excessively high pipe wall temperatures that could pose safety hazards, flue gas transport pipelines are typically insulated.

[0003] Currently, existing flue gas insulation pipes have some shortcomings in their structural design. Some insulation pipes have poor insulation performance, resulting in significant heat loss during flue gas transportation and reducing the efficiency of subsequent waste heat utilization. Some insulation pipes are not securely installed and fixed, and are prone to loosening and displacement during long-term use, affecting the stability of flue gas transportation. Utility Model Content

[0004] The purpose of this utility model is to provide a flue gas insulation pipe for a submerged arc furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flue gas insulation pipe for a submerged arc furnace includes an exhaust pipe seat with an outer liner. An insulation pipe is fixedly connected to the top center of the exhaust pipe seat. A connector is fixedly connected to the end of the exhaust pipe seat away from the insulation pipe. A chassis is fixedly connected to the end of the connector away from the bottom of the exhaust pipe seat. A gasket is installed on the end of the chassis away from the connector. A control box is fixedly connected to the front end of the outer wall of the exhaust pipe seat. A frame plate is fixedly connected to the front end of the inner frame of the control box. A perforation is formed on the surface of the frame plate, and an arc-shaped water pipe is installed at the perforation.

[0007] As a further embodiment of this utility model: a cavity block is fixedly connected to the rear end of the outer wall of the exhaust pipe seat, a door cover is installed at the end of the cavity block away from the outer wall of the exhaust pipe seat, a conduit is connected through the side of the cavity block, and an arc-shaped water pipe is provided in front of the cavity block.

[0008] As a further improvement of this utility model: a bracket is installed at the front end of the cavity block, and one end of the conduit passes through the back of the bracket and is fixedly installed with the arc-shaped water pipe.

[0009] As a further embodiment of this utility model: a lower fixing block is fixedly connected to the inner frame of the receiving seat, an upper fixing block is fixedly connected to the upper surface of the lower fixing block, and the upper fixing block is fixedly connected to the inner wall of the exhaust pipe seat.

[0010] As a further embodiment of this utility model: an insulation pipe is fixedly connected to the inner wall of the outer liner, and a smoke pipe is fixedly connected to the end of the insulation pipe away from the outer liner.

[0011] As a further embodiment of this utility model: one end of the outer liner tube is fixedly connected to a bending member two, and the other end of the outer liner tube is fixedly connected to a bending member one. The bending member one and the bending member two are bent and surrounded, and the bending member one and the bending member two are fixedly connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model describes a flue gas insulation pipe that, by installing an insulation pipe, can effectively reduce heat loss of flue gas during transportation, improve the utilization rate of waste heat from flue gas, and achieve the purpose of energy saving. At the same time, the outer lining pipe protects the insulation pipe and extends its service life.

[0014] In this utility model, the combined use of the upper and lower fixing blocks enhances the connection between the connector and the exhaust pipe seat. The bracket supports and fixes the duct, ensuring the stability of the entire device structure and reducing component loosening caused by vibration and other factors.

[0015] This utility model features a door cover that facilitates maintenance and repair of components inside the cavity block, and an arc-shaped water pipe that can cool relevant components to ensure the normal operation of the device. The overall structure is reasonably designed and easy to operate.

[0016] In this utility model, the curved and surrounding design of the first and second bending components allows the outer liner to flexibly adapt to different installation environments, improving the versatility of the device. Its structure is more optimized and its design is more reasonable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a flue gas insulation pipe for a submerged arc furnace.

[0018] Figure 2 This is a split diagram of a flue gas insulation pipe for a submerged arc furnace.

[0019] Figure 3 This is a structural diagram of an insulation pipe in a flue gas insulation pipe for a submerged arc furnace.

[0020] In the diagram: 1. Exhaust pipe seat, 2. Connector, 3. Insulation pipe, 4. Control box, 5. Arc-shaped water pipe, 6. Frame plate, 7. Chassis, 8. Gasket, 9. Lower fixing block, 10. Upper fixing block, 11. Bracket, 12. Cavity block, 13. Door cover, 14. Conduit, 15. Outer liner pipe, 16. Smoke pipe, 17. Bending part one, 18. Bending part two. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 In this embodiment of the utility model, a flue gas insulation pipe for a submerged arc furnace includes an exhaust pipe seat 1 and an outer liner 15. The exhaust pipe seat 1 is made of high-temperature resistant steel, which has good structural strength and corrosion resistance. An insulation pipe 3 is fixedly connected to the top center of the exhaust pipe seat 1. The insulation pipe 3 is made of high-efficiency insulation materials such as aluminum silicate fiber cotton, which has excellent insulation performance. A connector 2 is fixedly connected to the end of the exhaust pipe seat 1 away from the insulation pipe 3. The connector 2 and the exhaust pipe seat 1 are fixedly connected by welding, and the connection is firm.

[0023] A chassis 7 is fixedly connected to the end of the connector 2 away from the bottom of the exhaust pipe seat 1. The chassis 7 is made of steel plate. A gasket 8 is installed at the end of the chassis 7 away from the connector 2. The gasket 8 is made of rubber. A control box 4 is fixedly connected to the front end of the outer wall of the exhaust pipe seat 1. The control box 4 is made of stainless steel and has good protective performance. A frame plate 6 is fixedly connected to the front end of the inner frame of the control box 4. The frame plate 6 is fixedly connected to the control box 4 by bolts. The surface of the frame plate 6 has perforations, and an arc-shaped water pipe 5 is installed at the perforation. The arc-shaped water pipe 5 is made of seamless steel pipe and has good high temperature resistance and corrosion resistance.

[0024] Please see Figures 1-3 A cavity block 12 is fixedly connected to the rear end of the outer wall of the exhaust pipe seat 1. The cavity block 12 and the exhaust pipe seat 1 are integrally formed. A door cover 13 is installed at the end of the cavity block 12 away from the outer wall of the exhaust pipe seat 1. The door cover 13 is connected to the cavity block 12 by a hinge, which facilitates opening and closing. A conduit 14 is connected through the side of the cavity block 12. The conduit 14 is made of copper pipe and has good thermal conductivity. An arc-shaped water pipe 5 is provided in front of the cavity block 12.

[0025] A bracket 11 is installed at the front end of the cavity block 12. The bracket 11 is made of angle steel and is fixed to the cavity block 12 by welding. One end of the conduit 14 passes through the back of the bracket 11 and is fixed to the arc-shaped water pipe 5. The conduit 14 and the arc-shaped water pipe 5 are connected by a flange to ensure the sealing of the connection.

[0026] The inner frame of the connector 2 is fixedly connected to a lower fixing block 9, which is fixed to the connector 2 by welding. The upper surface of the lower fixing block 9 is fixedly connected to an upper fixing block 10, which is integrally formed with the lower fixing block 9. The upper fixing block 10 is fixedly connected to the inner wall of the exhaust pipe seat 1, which is fixed to the exhaust pipe seat 1 by welding.

[0027] Please see Figures 1-3 The inner wall of the outer liner 15 is fixedly connected to the insulation pipe 3. The outer liner 15 is made of heat-resistant steel. The inner wall of the outer liner 15 and the insulation pipe 3 are bonded and fixed with a high-temperature resistant adhesive. The end of the insulation pipe 3 away from the outer liner 15 is fixedly connected to the flue pipe 16. The flue pipe 16 is made of high-chromium-nickel alloy and can withstand the corrosion and erosion of high-temperature flue gas. One end of the outer liner 15 is fixedly connected to the second bending member 18, and the other end of the outer liner 15 is fixedly connected to the first bending member 17. Both the first bending member 17 and the second bending member 18 are made of the same material as the outer liner 15. The first bending member 17 and the second bending member 18 are bent and wrapped around each other. The first bending member 17 and the second bending member 18 are fixedly connected by welding to ensure the strength and sealing of the connection.

[0028] The working principle of this utility model is as follows:

[0029] When in use, high-temperature flue gas is transported through flue pipe 16. Insulation pipe 3 can effectively block the dissipation of flue gas heat and reduce heat loss. Outer liner pipe 15 protects insulation pipe 3 and flue pipe 16 and prevents external factors from damaging them.

[0030] The curved, wrapping design of the first bending member 17 and the second bending member 18 allows the outer liner tube 15 to be arranged according to the actual installation space requirements, improving installation flexibility. Coolant can flow into the arc-shaped water pipe 5, and through its cooperation with the conduit 14, it cools the relevant components of the device, ensuring that the device operates at a suitable temperature.

[0031] The control components inside the control box 4 can monitor parameters such as flue gas temperature and flow rate in real time, allowing operators to understand the operating status of the device promptly. The door 13 can be opened at any time, facilitating the inspection and maintenance of components inside the cavity block 12. The upper fixing block 10 and the lower fixing block 9 enhance the structural stability of the entire device, ensuring the safe and reliable delivery of flue gas.

[0032] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An ore smelting furnace flue gas insulation pipe comprising an exhaust pipe seat (1) and an outer lining pipe (15), characterized in that: A heat insulation pipe (3) is fixedly connected to the top center of the exhaust pipe seat (1). A connector (2) is fixedly connected to the end of the exhaust pipe seat (1) away from the heat insulation pipe (3). A chassis (7) is fixedly connected to the end of the connector (2) away from the bottom of the exhaust pipe seat (1). A gasket (8) is installed at the end of the chassis (7) away from the connector (2). A control box (4) is fixedly connected to the front end of the outer wall of the exhaust pipe seat (1). A frame plate (6) is fixedly connected to the front end of the inner frame of the control box (4). A perforation is opened on the surface of the frame plate (6), and an arc-shaped water pipe (5) is installed at the perforation.

2. A heat retaining pipe for smelter flue gases according to claim 1, characterized in that: A cavity block (12) is fixedly connected to the rear end of the outer wall of the exhaust pipe seat (1). A door cover (13) is installed at one end of the cavity block (12) away from the outer wall of the exhaust pipe seat (1). A conduit (14) is connected through the side of the cavity block (12). An arc-shaped water pipe (5) is provided in front of the cavity block (12).

3. The flue gas insulation pipe for a submerged arc furnace according to claim 2, characterized in that: A bracket (11) is installed at the front end of the cavity block (12), and one end of the conduit (14) passes through the back of the bracket (11) and is fixed to the arc-shaped water pipe (5).

4. The flue gas insulation pipe for a submerged arc furnace according to claim 1, characterized in that: The inner frame of the connector (2) is fixedly connected to a lower fixing block (9), and the upper surface of the lower fixing block (9) is fixedly connected to an upper fixing block (10). The upper fixing block (10) is fixedly connected to the inner wall of the exhaust pipe seat (1).

5. The flue gas insulation pipe for a submerged arc furnace according to claim 1, characterized in that: The inner wall of the outer liner (15) is fixedly connected to a heat insulation pipe (3), and the end of the heat insulation pipe (3) away from the outer liner (15) is fixedly connected to a smoke pipe (16).

6. The flue gas insulation pipe for a submerged arc furnace according to claim 5, characterized in that: One end of the outer liner tube (15) is fixedly connected to a second bending member (18), and the other end of the outer liner tube (15) is fixedly connected to a first bending member (17). The first bending member (17) and the second bending member (18) are bent and surrounded, and the first bending member (17) and the second bending member (18) are fixedly connected.

Images