A chute heat supplement and insulation system

Abstract

The utility model discloses a chute heat supplement and insulation system, which comprises a chute body, a cover brick is arranged on the chute body in the length direction, a plurality of groups of dispersed heat supply units are arranged on the cover brick in the length direction, each group of dispersed heat supply units comprises a direct injection burner, a positioning sealing plate and a metal hose, wherein the positioning sealing plate is arranged on the cover brick, the direct injection burner is vertically downwardly installed on the positioning sealing plate and the front end of the direct injection burner is inserted through the cover brick and arranged downward, and one end of the metal hose is connected to the direct injection burner; an air supply device and an air supply device are also arranged, and the air supply device and the air supply device supply air and air to each metal hose at the same time; the utility model system realizes the purpose of reducing energy and consumption and reducing costs while ensuring effective chute insulation.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled copper refining equipment, in particular to a chute heat supplement and insulation system. Background Art

[0002] The copper liquid produced by the melting furnace is transported to the downstream process through the insulation chute (see Appendix Figure 1 ), the copper liquid flows and cools down in the chute. Since the temperature of the copper liquid is 1120℃~1130℃, which is only slightly higher than the melting point of copper (1083℃), the fluidity decreases after cooling, and it may even solidify and freeze, causing a production stoppage accident. Therefore, a diffusion burner is used to spray flames on the surface of the copper liquid to replenish heat and prevent the temperature of the copper liquid from dropping. The diffusion burner is installed at an angle on the top of the insulation chute using the burner base, and the chute cover is between the burner bases, both of which are prefabricated with high-grade castables. The diffusion burner is manufactured by a professional manufacturer, with a complex structure and high cost. At the same time, in order to save fuel, the diffusion burner is arranged at intervals of 2m in the length direction of the chute.

[0003] After the flame is ejected from the burner, it spreads to both sides of the axial direction. Increasing / decreasing the burner flame diffusion angle can increase / reduce the coverage of the burner flame on the chute surface. When the burner flame covers 100% of the chute inner width and more than 50% of the chute inner length, the copper liquid has a better insulation effect.

[0004] Since the inner length of the chute is 30 to 80 times its inner width, it is impossible to meet the flame coverage requirements of the inner length and inner width of the chute at the same time: if the burner flame diffusion angle is adjusted so that the burner flame just covers 100% of the inner width of the chute, the burner flame can only cover 16.3% of the inner length of the chute at the same time, and the insulation effect is not ideal (see Figure 1 ). If the flame diffusion angle is increased so that the burner flame covers 50% or more of the chute, the burner flame in the chute width direction will directly wash the surface of the chute wall, shortening the life of the chute. A large amount of high-temperature flame will even rush out from the gap between the "burner base" and the chute wall, which will not only worsen the working environment around the chute, but also waste fuel and lead to high energy consumption.

[0005] At the same time, due to the branches and turns of the chute, the chute cover plates have various specifications. The chute cover plates wear out quickly under high temperatures and need to be produced and stored in large quantities, which is very expensive. Utility Model Content

[0006] The purpose of the utility model is to provide a chute heat supplement and insulation system for the above situation, which achieves the purpose of reducing energy consumption and cost while ensuring effective chute insulation.

[0007] The specific scheme of the utility model is: a chute heat supplement and insulation system, comprising a chute body, a cover brick is arranged on the chute body along the length direction, a plurality of groups of dispersed heat supply units are arranged on the cover brick along the length direction, each group of dispersed heat supply units comprises a direct injection burner, a positioning sealing plate and a metal hose, wherein the positioning sealing plate is arranged on the cover brick, the direct injection burner is vertically downwardly installed on the positioning sealing plate and the front end of the direct injection burner is inserted through the cover brick and arranged downward, and one end of the metal hose is connected to the direct injection burner; an air supply device and an air supply device are also provided, and the air supply device and the air supply device simultaneously supply air and air to each metal hose.

[0008] Furthermore, the air supply device described in the utility model includes an air duct assembly and an air distribution mechanism, the air duct assembly introduces the air source into the air distribution mechanism, the air distribution mechanism includes an air distribution tank and a plurality of air branch pipes, all the air branch pipes are connected to the air distribution tank, each air branch pipe is correspondingly connected to a metal hose, a flame arrester is installed at the end connection between each air branch pipe and the corresponding metal hose, and an air regulating valve is also provided on each air branch pipe; the gas supply device includes a gas pipe assembly and a gas distribution mechanism, the gas pipe assembly introduces the gas source into the gas distribution mechanism, the gas distribution mechanism includes a gas distribution tank and a plurality of air branch pipes, all the air branch pipes are connected to the gas distribution tank, each air branch pipe is correspondingly connected to the middle position of an air branch pipe, and an air regulating valve is also provided on each air branch pipe.

[0009] Furthermore, the air duct assembly described in the utility model includes an air supply main pipe, the upper end of the air supply main pipe is connected to the air source, the lower end of the air supply main pipe is connected to the air distribution tank, and the air supply main pipe is provided with a ball valve A, a check valve A, a pneumatic valve A and a pressure gauge A from top to bottom; the gas pipe assembly includes a gas main pipe, the upper end of the gas main pipe is connected to the gas source, the lower end of the gas main pipe is connected to the gas distribution tank, and the gas main pipe is provided with a ball valve B, a check valve B, a pneumatic valve B and a pressure gauge B from top to bottom.

[0010] Furthermore, the number of the wind branch pipes and the gas branch pipes in the present invention remains consistent, and each is 2 to 15.

[0011] Furthermore, the direct injection burners in the utility model are arranged at intervals of 300 to 1500 mm along the length direction of the chute body.

[0012] Furthermore, the direct injection burner in the utility model is made of a steel pipe, and the direct injection burner is welded to the positioning sealing plate.

[0013] Furthermore, the positioning sealing plate described in the utility model has a specification of 130mm×130mm, a thickness of 20mm, and is made of Q235.

[0014] Furthermore, the cover bricks in the utility model are made of LZ55 grade high-alumina bricks.

[0015] The utility model has the following beneficial effects:

[0016] 1. The flame of the direct-injection burner in the utility model covers 100% of the inner width of the chute and more than 50% of the inner length of the chute at the same time. The coverage rate of the copper liquid surface in the length direction of the chute body is 2 to 4 times that of the original diffusion burner, and the insulation effect is better than that of the diffusion burner. The flame of the direct-injection burner in the utility model is vertically downward, and the burner flame will not directly flush the surface of the chute wall, and the service life of the chute masonry is extended; the burner flame will not rush out from the gap between the burner base and the chute wall, and the working environment around the chute is good, and the consumption of chute insulation fuel is saved by 30 to 60%.

[0017] 2. The direct injection burner in the utility model has a simple structure and is made of ordinary steel, which is inexpensive and can be made by yourself and configured in large quantities. When the direct injection burners are configured in high density, the total cost of the chute heat supplement and insulation structure is still much lower than that of the diffusion burner system.

[0018] 3. The positioning sealing plate for the direct injection burner in the utility model is placed between the cover bricks on the top of the chute body. The installation method is simple and will not be affected even if the chute branches or bends are arranged. There is no need to customize the burner base. Accordingly, the top of the chute can be covered with cheap insulation bricks as cover bricks, without the need to use a chute cover plate, which greatly saves material expenses and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main cross-sectional schematic diagram of the existing chute insulation structure;

[0020] Figure 2 yes Figure 1 Schematic diagram of the AA cutaway structure;

[0021] Figure 3 It is a main cross-sectional schematic diagram of the thermal insulation structure of the utility model;

[0022] Figure 4 yes Figure 3 Schematic diagram of the cross-section structure of the middle BB.

[0023] In the figure: 1-diffusion burner, 2-burner flame, 3-chute cover, 4-burner base, 5-copper liquid, 6-chute body, 7-air supply main pipe, 8-ball valve A, 9-check valve A, 10-pneumatic valve A, 11-air distribution tank, 12-pressure gauge A, 13-air branch pipe, 14-air regulating valve, 15-flame arrester, 16-metal hose, 17-gas main pipe, 18-ball valve B, 19-check valve B, 20-pneumatic valve B, 21-gas distribution tank, 22-pressure gauge B, 23-gas branch pipe, 24-gas regulating valve, 25-direct injection burner, 26-positioning sealing plate, 27-cover brick. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings of the utility model to clearly and completely describe the technical solution of the utility model. It is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. In the description of the utility model, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 3 , Figure 4The utility model is a chute heat supplement and insulation system, which has a chute body 6, a cover brick 27 is arranged on the chute body in the length direction, and a plurality of groups of dispersed heat supply units are arranged on the cover brick in the length direction, and each group of dispersed heat supply units includes a direct injection burner 25, a positioning sealing plate 26 and a metal hose 16, wherein the positioning sealing plate is arranged on the cover brick, the direct injection burner is vertically downwardly installed on the positioning sealing plate, and the front end of the direct injection burner is inserted through the cover brick and arranged downward, and one end of the metal hose is connected to the direct injection burner; further, the direct injection burner in the utility model is arranged at intervals of 300 to 1500 mm along the length direction of the chute body; an air supply device and an air supply device are also provided, and the air supply device and the air supply device simultaneously supply air and air to each metal hose. Furthermore, the air supply device described in the utility model includes an air duct assembly and an air distribution mechanism, the air duct assembly introduces the air source into the air distribution mechanism, the air distribution mechanism includes an air distribution tank 11 and a plurality of air branch pipes 13, all air branch pipes are connected to the air distribution tank, each air branch pipe is correspondingly connected to a metal hose, a flame arrester 15 is installed at the end connection between each air branch pipe and the corresponding metal hose, and an air regulating valve 14 is also provided on each air branch pipe; the gas supply device includes a gas pipe assembly and a gas distribution mechanism, the gas pipe assembly introduces the gas source into the gas distribution mechanism, the gas distribution mechanism includes a gas distribution tank 21 and a plurality of air branch pipes 23, all air branch pipes are connected to the gas distribution tank, each air branch pipe is correspondingly connected to the middle position of an air branch pipe, and an air regulating valve 24 is also provided on each air branch pipe. Furthermore, the air duct assembly described in the utility model includes an air supply main pipe 7, the upper end of which is connected to the air source, the lower end of which is connected to the air distribution tank, and the air supply main pipe is provided with a ball valve A8, a check valve A9, a pneumatic valve A10 and a pressure gauge A12 from top to bottom; the gas pipe assembly includes a gas main pipe 17, the upper end of which is connected to the gas source, the lower end of which is connected to the gas distribution tank, and the gas main pipe is provided with a ball valve B18, a check valve B19, a pneumatic valve B20 and a pressure gauge B22 from top to bottom. Furthermore, the number of the air branch pipes and the gas branch pipes described in the utility model remains the same, and each is 2 to 15.

[0027] Furthermore, the direct injection burner in this embodiment is made of steel pipe, and the direct injection burner is welded on the positioning sealing plate. Furthermore, the positioning sealing plate in the utility model has a specification of 130mm×130mm, a thickness of 20mm, and a material of Q235. Furthermore, the cover brick in the utility model is made of LZ55 grade high aluminum brick.

[0028] Attached Figure 1 and 2 This is the original chute insulation structure diagram, see Figure 3, which is the corresponding technical solution of the utility model, includes several groups of decentralized heating units performing heating and heat preservation operations simultaneously.

[0029] The size of the air distribution tank in the utility model is φ400mm×2000mm. The inlet side of the air distribution tank is connected to the air supply main pipe, and the outlet side of the air distribution tank is connected to 15 φ25mm air branch pipes. A manual ball valve is installed on each air branch pipe as an air regulating valve, and a flame arrester is installed at the end of the air branch pipe. The size of the gas distribution tank is φ300mm×2000mm. The inlet side of the gas distribution tank is connected to the gas main pipe, and the outlet side of the gas distribution tank is connected to 15 φ15mm gas branch pipes. A manual ball valve is installed on each gas branch pipe as an air regulating valve, and the end is connected to a corresponding air branch pipe through a connecting pipe. The decentralized heating system consists of a total of 15 sets of direct injection burners, positioning sealing plates, and metal hoses. The direct injection burner is welded on the positioning sealing plate and is uprightly placed in the gap reserved by the top cover brick of the chute body through the positioning sealing plate. The positioning sealing plate is 130mm×130mm, 20mm thick, and made of Q235. The direct injection burners are arranged at intervals of 500 mm in the length direction of the chute.

[0030] The method of using the utility model is as follows: first, open the manual ball valve and pneumatic ball valve on the air supply main pipe to send the combustion-supporting air into the air distribution tank. Then open the manual ball valve and pneumatic ball valve on the gas main pipe to send the gas into the gas distribution tank. Check the pressure gauge A to confirm that the combustion-supporting air pressure is 15KPa, and check the pressure gauge B to confirm that the gas pressure is 12KPa. First, open the air regulating valves of the air branch pipes one by one to send the combustion-supporting air into the direct-injection burner; then open the gas regulating valves of the gas branch pipes one by one to send the gas into the air branch pipes. Observe the flame condition of the "direct-injection burner" and adjust the opening of the air regulating valve and the gas regulating valve accordingly.

[0031] The utility model provides a chute heat supplement and insulation system, in which the burner flame 2 simultaneously covers 100% of the inner width of the chute and 50.7% of the inner length of the chute (3.1 times that of the diffusion burner), and the insulation effect is better than that of the diffusion burner. The flame of the direct-injection burner is vertically downward, and the burner flame will not directly flush the surface of the chute wall, thereby extending the service life of the chute masonry; the burner flame will not rush out from the gap between the burner base and the chute wall, and the working environment around the chute is good, and the consumption of the chute insulation fuel is saved by 50%.

[0032] The utility model discloses a chute heat supplement and insulation system, and the direct injection burner is made by itself, and the material is Q235. At the same time, there is no need to customize the burner base, chute cover plate, etc., and the top of the chute can be covered with LZ55 grade high aluminum bricks as cover bricks.

[0033] The flame of the direct-injection burner in the utility model simultaneously covers 100% of the inner width of the chute and more than 50% of the inner length of the chute. The coverage rate of the copper liquid surface in the length direction of the chute body is 2 to 4 times that of the original diffusion burner, and the insulation effect is better than that of the diffusion burner. The flame of the direct-injection burner in the utility model is vertically downward, and the burner flame will not directly flush the surface of the chute wall, thereby extending the service life of the chute masonry; the burner flame will not rush out from the gap between the burner base and the chute wall, and the working environment around the chute is good, saving 30 to 60% of the chute insulation fuel consumption. The direct-injection burner in the utility model has a simple structure and is made of ordinary steel. It is inexpensive, can be made by yourself, and can be configured in large quantities. When the direct-injection burners are configured at a high density, the total cost of the chute heat supplement and insulation structure is still much lower than that of the diffusion burner system. The utility model discloses a direct injection burner positioning sealing plate arranged between the cover bricks on the top of the chute body, which is easy to install and will not be affected even if the chute is arranged at branches or bends, without the need to customize the burner base; accordingly, the top of the chute can be covered with cheap insulation bricks as cover bricks, without the need to use a chute cover plate, thus greatly saving material expenses and costs.

Claims

1. A chute heat supplement and heat preservation system, comprising a chute body, characterized in that: A cover brick is provided on the chute body along the length direction, and a plurality of groups of dispersed heat supply units are arranged on the cover brick along the length direction, each group of dispersed heat supply units includes a direct injection burner, a positioning sealing plate and a metal hose, wherein the positioning sealing plate is arranged on the cover brick, the direct injection burner is vertically downwardly installed on the positioning sealing plate, and the front end of the direct injection burner is inserted through the cover brick and arranged downward, and one end of the metal hose is connected to the direct injection burner; an air supply device and an air supply device are also provided, and the air supply device and the air supply device simultaneously supply air and air to each metal hose.

2. A chute heat supplementation and insulation system according to claim 1, characterized in that: The air supply device includes an air duct assembly and an air distribution mechanism. The air duct assembly introduces the air source into the air distribution mechanism. The air distribution mechanism includes an air distribution tank and a plurality of air branch pipes. All the air branch pipes are connected to the air distribution tank. Each air branch pipe is correspondingly connected to a metal hose. A flame arrester is installed at the connection between each air branch pipe and the end of the corresponding metal hose. Each air branch pipe is also provided with an air regulating valve; the gas supply device includes a gas pipe assembly and a gas distribution mechanism. The gas pipe assembly introduces the gas source into the gas distribution mechanism. The gas distribution mechanism includes a gas distribution tank and a plurality of air branch pipes. All the air branch pipes are connected to the gas distribution tank. Each air branch pipe is correspondingly connected to the middle position of an air branch pipe. Each air branch pipe is also provided with an air regulating valve.

3. A chute heat supplementation and insulation system according to claim 2, characterized in that: The air duct assembly includes an air supply main pipe, the upper end of which is connected to the air source, the lower end of which is connected to the air distribution tank, and the air supply main pipe is provided with a ball valve A, a check valve A, a pneumatic valve A and a pressure gauge A from top to bottom; the gas pipe assembly includes a gas main pipe, the upper end of which is connected to the gas source, the lower end of which is connected to the gas distribution tank, and the gas main pipe is provided with a ball valve B, a check valve B, a pneumatic valve B and a pressure gauge B from top to bottom.

4. A chute heat supplementation and insulation system according to claim 2, characterized in that: The number of the wind branch pipes and the gas branch pipes are consistent, and each is 2 to 15.

5. The chute heat supplementation and insulation system according to claim 1, characterized in that: The direct injection burners are arranged at intervals of 300 to 1500 mm along the length direction of the chute body.

6. A chute heat supplementation and insulation system according to claim 1, characterized in that: The direct injection burner is made of a steel pipe and is welded to the positioning sealing plate.

7. The chute heat supplementation and insulation system according to claim 1, characterized in that: The positioning sealing plate has a specification of 130mm×130mm, a thickness of 20mm, and is made of Q235.

8. The chute heat supplementation and insulation system according to claim 1, characterized in that: The cover bricks are made of LZ55 grade high-alumina bricks.

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