A lifting even heating carton drying device

Abstract

The utility model discloses a kind of evenly heated tundish devices of liftable, which is composed of tundish, silicon-carbon heating rod, heat preservation shell, electrical control device, heating fixed base, cylinder, three-position two-way electromagnetic reversing valve, safety valve, switch knob, gas outlet, throttle valve and gas source. Cylinder is fixed at the bottom of tundish device, connected with heating fixed base, drives its up-and-down movement;Silicon-carbon heating rod is vertically fixed at the center position of heating fixed base, can realize up-and-down movement with cylinder piston. In the heating process, silicon-carbon heating rod passes through the center of heat preservation shell, and goes deep into the interior of tundish, ensures the uniformity of heating. At the same time, gas source provides compressed air power for the system, three-position two-way electromagnetic reversing valve controls the up-and-down movement of cylinder piston, throttle valve adjusts the speed of movement, safety valve plays a protective role, prevents system pressure from being too high. The action control of the whole device is completed by electrical control device, ensures the safety and stability of operation.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy equipment, specifically relating to a drying and baking device that can be raised and lowered for uniform heating. Background Technology

[0002] In the field of powder metallurgy material production, the atomization method for producing metal powder requires the raw materials to be melted at high temperatures and then atomized using a combination of water and air to form powder. During this process, the molten metal flowing from the induction furnace first enters the tundish and then flows into the atomization tank for atomization. However, since the tundish is at room temperature while the molten metal is at high temperature, directly pouring the hot molten metal into the room-temperature tundish can easily cause molten metal to splash, potentially causing burns. Simultaneously, due to thermal stress, the tundish may crack, further threatening the safety of operators. Furthermore, the uneven heating of the tundish makes it prone to cracking during use, affecting its service life and increasing production costs. Existing tundish drying equipment uses a bottom-up heating method, which can reach a heating temperature of 800℃, but the heating time is as long as 8-10 hours, which is not only time-consuming but also energy-intensive. Utility Model Content

[0003] This invention provides a heating and drying device for intermediate bread that can be raised and lowered for uniform heating, aiming to solve the problems of uneven heating and long heating time during the heating process of intermediate bread.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A height-adjustable and uniformly heated baking device is provided, which consists of an intermediate bun, a silicon carbide heating rod, an insulation shell, an electrical control device, a heating base, a cylinder, a three-position two-way solenoid valve, a safety valve, a switch knob, an air outlet, a throttle valve, and an air source.

[0006] Two cylinders are fixed to the bottom of the drying device and connected to the heating base, causing it to move up and down. A silicon carbide heating rod is vertically fixed at the center of the heating base and moves up and down with the cylinder piston. During heating, turning the rotary switch energizes the right electromagnet of the three-position two-way solenoid valve, allowing compressed air to enter the working chamber and control the cylinder piston to move upwards, thus moving the piston and silicon carbide heating rod upwards. A throttle valve regulates the piston's speed, and a safety valve protects against excessive system pressure. Finally, the heating base fits tightly against the bottom of the insulation shell, and the inner insulation cotton ensures no heat leakage. The silicon carbide heating rod penetrates deep into the tundish, maintaining a temperature of 500℃. It takes 3-4 hours to reach operating conditions, achieving high energy efficiency, low heat loss, uniform heating of the tundish, and extended service life. After heating, resetting the rotary switch energizes the left electromagnet of the three-position two-way solenoid valve, allowing compressed air to enter the return chamber. Under the combined action of gravity and the cylinder piston, the device resets. The entire device's operation is controlled by an electrical control unit, ensuring operational safety and stability.

[0007] Two cylinders are fixed to the bottom of the drying device and, through their connection with the heating base, drive it to move up and down. The silicon carbide heating rod is vertically fixed at the center of the heating base and can move up and down with the cylinder piston.

[0008] During heating, turning the rotary switch energizes the right electromagnet of the three-position two-way solenoid valve, allowing compressed air to enter the working chamber of the cylinder, pushing the piston upward and causing the silicon carbide heating rod to rise along with it. A throttle valve regulates the piston's speed to ensure smooth operation, while a safety valve protects against excessive system pressure and accidents. Finally, the heating base fits tightly against the bottom of the insulation shell, and the insulation cotton inside effectively prevents heat loss. The silicon carbide heating rod penetrates deep into the intermediate bath, maintaining a temperature of 500℃, reaching usable conditions in just 3-4 hours. When heating is complete, resetting the rotary switch energizes the left electromagnet of the three-position two-way solenoid valve, allowing compressed air to enter the cylinder's return chamber. Under the combined action of gravity and the cylinder piston, the device automatically returns to its initial state. The entire device's operation is controlled by an electrical control unit, ensuring safety and stability.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention significantly improves the drying effect of intermediate bread rolls and increases their usage frequency by adding a pneumatic lifting device to existing bread drying equipment. The optimized design achieves high energy efficiency and low heat loss, ensuring uniform heating of the intermediate bread rolls, thereby improving heating efficiency and reducing energy consumption. The newly added pneumatic lifting device makes operation more convenient, reduces manual intervention, and improves equipment reliability and work efficiency. The optimized equipment significantly reduces the labor intensity of on-site workers, further improving labor productivity. By reducing energy consumption and material waste, it achieves the goal of cost reduction and efficiency improvement, while also conforming to the concept of green and environmentally friendly development. In summary, this invention not only solves the shortcomings of existing technology but also achieves a dual improvement in economic and social benefits through technological innovation, possessing broad application value. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the heating position structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the initial position structure of this utility model;

[0013] In the diagram: 1—Intermediate liner; 2—Silicon carbide heating rod; 3—Insulation shell; 4—Electrical control device; 5—Heating base; 6—Cylinder; 7—Three-position two-way solenoid valve; 8—Safety valve; 9—Rotary switch; 10—Air outlet; 11—Throttle valve; 12—Air source. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0015] like Figure 1 As shown, a lifting and uniformly heated baking device includes an intermediate bag 1, a silicon carbide heating rod 2, an insulation shell 3, an electrical control device 4, a heating fixing base 5, a cylinder 6, a three-position two-way electromagnetic reversing valve 7, a safety valve 8, a rotary switch 9, an air outlet 10, a throttle valve 11, and an air source 12.

[0016] The intermediate bag 1 is fixed above the drying device, and the insulation shell 3 is fixedly connected to the bottom of the intermediate bag 1. Two cylinders 6 are vertically fixed to the bottom of the drying device, and the heating base 5 is fixedly connected to the cylinders 6. The heating silicon carbide rod 2 is vertically fixed at the center of the upper surface of the heating base 5. During heating, by adjusting the knob switch 9, the silicon carbide heating rod 2 and the heating base 5 can move up and down with the cylinders 6, and finally the silicon carbide heating rod passes through the insulation shell 3 to reach the inside of the intermediate bag 1. The pneumatic lifting circuit consists of a three-position two-way electromagnetic reversing valve 7, a safety valve 8, an air outlet 10, a throttle valve 11, and an air source 12. The electrical control device 4 controls the operation of each component of the entire drying device.

[0017] During the heating process, the silicon carbide heating rod 2 moves up and down with the piston of the cylinder 6 via the action of the pneumatic lifting circuit. This allows for flexible adjustment of the heating rod's position, improving the adaptability and ease of operation of the equipment.

[0018] The pneumatic lifting circuit is equipped with a safety valve 8 and a throttle valve 11, which can effectively control the movement speed of the silicon carbide heating rod 2 and play a protective role when the system pressure is too high, ensuring the safety and stability of the equipment operation.

[0019] During heating, the silicon carbide heating rod 2 can enter the interior of the intermediate pot 1 through the heat-insulating outer shell 3, ensuring uniform heating of the intermediate pot 1. This reduces heating time, lowers energy consumption, and improves energy efficiency.

[0020] The operation of all components of the entire baking and drying equipment is uniformly managed by the electrical control device 4, which simplifies the manual operation process, reduces the risk caused by human error, and ensures the safety and efficiency of the production process.

[0021] The silicon carbide heating rod 2, cylinder 6, electrical control device 4 and other components of the baking device have good modularity, which facilitates later maintenance, replacement and upgrading, helps to reduce the operating cost of the equipment and extend its service life.

Claims

1. A drying device for bread that can be raised and lowered for uniform heating, characterized in that, It includes an intermediate package (1), a silicon carbide heating rod (2), an insulation shell (3), an electrical control device (4), a heating fixing base (5), a cylinder (6), a three-position two-way solenoid reversing valve (7), a safety valve (8), a switch knob, an air outlet (10), a throttle valve (11), and an air source (12). The intermediate bag (1) is fixed above the baking device, and the heat insulation shell (3) is fixedly connected to the bottom of the intermediate bag (1). Two cylinders (6) are vertically fixed side by side at the bottom of the drying device, and the heating fixing base (5) is fixedly connected to the cylinders (6); The heating silicon carbide rod is vertically fixed at the center of the upper surface of the heating base (5); during heating, the cylinder (6) extends and drives the heating silicon carbide rod to move vertically upward through the heat insulation shell (3) and into the interior of the intermediate package (1); The pneumatic lifting circuit of the cylinder (6) consists of a three-position two-way solenoid reversing valve (7), a safety valve (8), an air outlet (10), a throttle valve (11), and an air source (12); the electrical control device (4) controls the operation of each component of the entire baking device; during the heating process, the silicon carbide heating rod (2) can move up and down with the piston of the cylinder (6) through the operation of the pneumatic lifting circuit.

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