High-temperature-resistant heat insulation device for opening and closing air cylinder of furnace front smoke exhaust system of calcium carbide furnace

Abstract

The utility model relates to a high-temperature-resistant heat insulation device for an opening and closing cylinder of a furnace front smoke exhaust system of a calcium carbide furnace. The high-temperature-resistant heat insulation device comprises a hanging assembly and a heat insulation platform, the heat insulation platform comprises a bottom plate, a skirting board and a high-temperature-resistant plastic castable; the skirting boards are fixed to the periphery of the upper end face of the bottom plate. The high-temperature-resistant plastic castable is correspondingly and fixedly arranged below the bottom plate; the hanging assemblies are vertically and fixedly connected to the top of the skirting board. According to the utility model, the flap valve cylinder and accessories thereof of the furnace front smoke exhaust system can be effectively protected, and the equipment maintenance process is simplified, so that safe production is realized, and the maintenance task is quickly completed.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust in front of a calcium carbide furnace, in particular to a high temperature resistant heat insulation device for opening and closing cylinders of a smoke exhaust system in front of a calcium carbide furnace. Background Art

[0002] A large amount of smoke and dust will be generated when the calcium carbide furnace is discharged from the discharge port. The smoke exhaust system in front of the furnace is to extract the smoke and dust to the dust removal and purification for environmental protection. The smoke exhaust system in front of the furnace is controlled by the flap valve, and the flap valve is driven by the cylinder, and the driving gas is compressed air. The temperature of the calcium carbide furnace is extremely high when discharging. The high temperature environment will cause the cylinder seal and the cylinder connecting hose to age and damage, and the electronic limit of the cylinder will fail, causing the automatic control flap valve to fail during the production process. The only way is to remove the cylinder connector for manual control, which is time-consuming and increases production risks. Summary of the invention

[0003] In view of the above problems, the purpose of the utility model is to provide a high-temperature resistant heat-insulating device for the opening and closing cylinder of the smoke exhaust system in front of the calcium carbide furnace, which can effectively protect the flap valve cylinder and its accessories of the smoke exhaust system in front of the furnace, simplify the equipment maintenance process, thereby achieving safe production and quickly completing maintenance tasks.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The utility model proposes a high temperature resistant heat insulation device for opening and closing cylinders of a fume exhaust system in front of a calcium carbide furnace, comprising a hanging assembly and a heat insulation platform;

[0006] The thermal insulation platform includes a base plate, a skirting board and a high-temperature resistant plastic casting material; the skirting boards are respectively fixed around the upper end surface of the base plate; the high-temperature resistant plastic casting material is correspondingly fixedly arranged below the base plate; the hanging components are respectively vertically fixedly connected to the top of the skirting boards.

[0007] Furthermore, the bottom of the base plate is evenly arranged with claw nails.

[0008] Furthermore, the hanging assembly includes an upper hanging rod, an insulating assembly and a lower hanging rod; the lower end of the lower hanging rod is fixedly connected to the top of the skirting board; the lower end of the upper hanging rod is fixedly connected to the upper end of the lower hanging rod through the insulating assembly.

[0009] Furthermore, the insulating assembly includes a connecting flange, bolts and a mica insulating plate; the connecting flanges are respectively arranged at the lower end of the upper hanging rod and the upper end of the lower hanging rod, and the mica insulating plate is correspondingly arranged between the two connecting flanges; the connecting flanges are fixedly connected by bolts.

[0010] Furthermore, a guardrail is installed around the upper surface of the base plate, and a ladder is provided on one side of the guardrail.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The production and installation are ground-based. The current thermal insulation is wrapped with rock wool and asbestos cloth and is done at high altitude. This device can be constructed on the ground to reduce construction risks.

[0013] 2. Good heat insulation effect. The current rock wool asbestos cloth cannot withstand the high temperature brought by the discharge of calcium carbide furnace. This device combines the high temperature resistant material properties of high temperature resistant plastic castables to effectively insulate, ensure that the equipment is no longer damaged, reduce the danger brought by manual operation during production, and ensure safe and smooth production.

[0014] 3. Convenient for daily maintenance. The height of the flap valve cylinder and its accessories of the furnace exhaust system is 5m. The current daily maintenance can only be done by building scaffolding for high-altitude operations, and there is a safety hazard below the furnace discharge track. This device can provide workers with a maintenance work surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the hanging assembly;

[0017] Figure 3 It is a structural schematic diagram of the thermal insulation platform;

[0018] Figure 4 It is a schematic diagram of the structure of the railing and ladder.

[0019] Among them, the figure numbers are: 1-hanging assembly; 11-upper hanging rod; 12-lower hanging rod; 13-connecting flange; 14-bolt; 15-mica insulation board; 2-insulating platform; 21-bottom plate; 22-skirting board; 23-high temperature resistant plastic casting material; 24-head nail; 3-guardrail; 4-ladder. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] It should be noted that, in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation.

[0022] See attached Figure 1-4 The utility model proposes a high temperature resistant heat insulation device for opening and closing cylinders of a fume exhaust system in front of a calcium carbide furnace. The device comprises a hanging assembly 1 and a heat insulation platform 2;

[0023] like Figure 3 As shown, the insulation platform includes a base plate 21, a skirting board 22, a high-temperature resistant plastic castable material 23 and horn nails 24; the skirting boards 22 are fixedly installed around the upper end surface of the base plate 21; a plurality of horn nails 24 are fixedly and evenly arranged on the lower end surface of the base plate 21; the high-temperature resistant plastic castable material 23 is correspondingly fixed under the base plate 21; the hanging components 1 are vertically fixed to the top of the skirting boards 22.

[0024] The high temperature resistant plastic castable 23 is used to insulate heat and protect the bottom plate 21 of the high temperature insulation device, thereby realizing thermal insulation protection of the smoke exhaust flap valve cylinder in front of the furnace. The high temperature resistant plastic castable 23 is composed of premixed refractory materials. In this embodiment, the high temperature resistant plastic castable 23 is stirred by a forced mixer, and the ratio is refractory material: water = 100: 10~12 (weight ratio), and the stirring time is 5-8 minutes; the discharge state is a uniform mud block. Use it up within 2 hours after stirring, and evenly apply the stirred castable on the bottom of the bottom plate 21.

[0025] like Figure 2 As shown, the hanging assembly 1 includes an upper hanging rod 11, an insulating assembly and a lower hanging rod 12; the lower end of the lower hanging rod 12 is fixedly connected to the top of the skirting board 22; the lower end of the upper hanging rod 11 is fixedly connected to the upper end of the lower hanging rod 12 through the insulating assembly.

[0026] Among them, the insulating component includes a connecting flange 13, bolts 14 and a mica insulating plate 15; the connecting flanges 13 are respectively arranged at the lower end of the upper hanging rod 11 and the upper end of the lower hanging rod 12, and the mica insulating plate 15 is correspondingly arranged between the two connecting flanges 13; the upper and lower connecting flanges 13 are fixedly connected by bolts.

[0027] The hanging assembly 1 is used to fix the high temperature resistant heat insulation device. The hanging assembly is divided into two parts, the upper and lower parts, and the middle part of the upper and lower parts is an insulating assembly, which plays the role of insulating the high temperature resistant heat insulation device from the electric furnace to avoid production accidents caused by ignition due to lack of insulation.

[0028] like Figure 4 As shown, in this embodiment, a guardrail 3 is installed around the upper end surface of the bottom plate 21, and one side of the guardrail 3 is open, and a ladder 4 is installed at the opening.

[0029] The working principle of the utility model is that high temperature will cause the valve plate valve cylinder and the air pipe in front of the furnace to deform. The hanging assembly is used to fix the heat insulation platform, and separate the lower part of the valve plate valve cylinder in front of the furnace from the furnace outlet position, effectively ensuring that the high temperature of the calcium carbide liquid during the discharge of the calcium carbide furnace cannot contact the valve cylinder in front of the furnace flap, ensuring that the cylinder is not in a high-temperature working state, and can operate normally for a long time without deformation. The railings and ladders can be used for cylinder maintenance to ensure the safety of maintenance personnel and facilitate personnel to climb up and down.

[0030] Matters not described in detail in this utility model are known technologies.

[0031] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A high temperature resistant heat insulation device for opening and closing cylinders of the smoke exhaust system in front of a calcium carbide furnace, characterized in that: The device comprises a hanging assembly and a heat-insulating platform; The thermal insulation platform includes a base plate, a skirting board and a high-temperature resistant plastic casting material; the skirting boards are respectively fixed around the upper end surface of the base plate; the high-temperature resistant plastic casting material is correspondingly fixedly arranged below the base plate; the hanging components are respectively vertically fixedly connected to the top of the skirting boards.

2. A high temperature resistant heat insulation device for the opening and closing cylinder of the smoke exhaust system in front of a calcium carbide furnace according to claim 1, characterized in that: The bottom of the bottom plate is evenly arranged with claw nails.

3. The high temperature resistant heat insulation device for the opening and closing cylinder of the smoke exhaust system in front of the calcium carbide furnace according to claim 1 is characterized by: The hanging assembly includes an upper hanging rod, an insulating assembly and a lower hanging rod; the lower end of the lower hanging rod is fixedly connected to the top of the skirting board; the lower end of the upper hanging rod is fixedly connected to the upper end of the lower hanging rod through the insulating assembly.

4. A high temperature resistant heat insulation device for the opening and closing cylinder of the smoke exhaust system in front of a calcium carbide furnace according to claim 3, characterized in that: The insulating assembly includes a connecting flange, bolts and a mica insulating plate; the connecting flanges are respectively arranged at the lower end of the upper hanging rod and the upper end of the lower hanging rod, and the mica insulating plate is correspondingly arranged between the two connecting flanges; the connecting flanges are fixedly connected by bolts.

5. The high temperature resistant heat insulation device for the opening and closing cylinder of the smoke exhaust system in front of the calcium carbide furnace according to claim 1 is characterized by: A guardrail is installed around the upper surface of the bottom plate, and a ladder is arranged on one side of the guardrail.

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