Quick-open type annealing furnace

Abstract

The utility model relates to the technical field of annealing furnaces, and discloses a quick-opening type annealing furnace which comprises a supporting frame, a furnace body is fixedly connected to the top of the supporting frame, a furnace opening door is installed on the front portion of the furnace body, a discharging door is installed on the rear portion of the furnace body, a rotating roller is installed in the furnace body, a water storage tank is fixedly connected to the top of the furnace body, and a water outlet is formed in the top of the water storage tank. A discharging door is arranged in the furnace body, a scraping mechanism is arranged in the discharging door, a circulating mechanism is arranged at the bottom of the supporting frame, the scraping mechanism comprises a touch assembly and a scraping assembly, the scraping assembly comprises a forward scraper, a lateral scraper and a sliding block, and the forward scraper is connected to the rear portion of the furnace body in a sliding mode. According to the utility model, through the action of the forward scraper and the lateral scraper, oxide skin appearing on the surface of the heated circular steel pipe is scraped, so that the surface of the steel pipe is smoother and smoother, subsequent operations such as processing, coating and welding are facilitated, and the quality and appearance of a finished product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to a quick-opening annealing furnace. Background Art

[0002] In the field of metal processing and manufacturing, annealing is an important process, and annealing furnace is the key equipment to realize this process. In order to meet the market demand for high-quality metal products and at the same time achieve the goals of energy conservation and emission reduction, cost reduction and improved production efficiency, the research and development of more advanced, efficient, energy-saving, environmentally friendly and process-adaptable annealing furnaces has become an urgent need for the development of the industry.

[0003] In reality, after high-temperature firing, the surface of steel pipes reacts with oxygen in the air to form a layer of oxide. The presence of oxide scale will make the steel surface rough and uneven, affecting the appearance and subsequent surface treatment effects such as processing and painting. Therefore, a fast-opening annealing furnace is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a fast-opening annealing furnace, which aims to improve the problem mentioned in the prior art that "its surface reacts with oxygen in the air to form a layer of oxide, and the presence of the oxide scale makes the steel surface rough and uneven."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quick-opening annealing furnace, comprising a support frame, the top of the support frame is fixedly connected to the furnace body, the front of the furnace body is equipped with a furnace door, the rear of the furnace body is equipped with a discharge door, the interior of the furnace body is equipped with a roller, the top of the furnace body is fixedly connected to a water tank, the interior of the discharge door is provided with a scraping mechanism, the bottom of the support frame is provided with a circulation mechanism, the scraping mechanism includes a touch assembly and a scraping assembly, the scraping assembly includes a forward scraper, a side scraper, and a sliding block, the forward scraper is slidably connected to the rear of the furnace body, the side scraper is slidably connected to the rear of the furnace body, and the sliding block is slidably connected to the inner wall of the furnace body.

[0006] As a further description of the above technical solution: the touch assembly includes a tilting rod, a fixed rod, and a transmission rod. The fixed rod is fixedly connected to the rear of the furnace body, the tilting rod is rotatably connected to the surface of the fixed rod, and the transmission rod is rotatably connected to the inner wall of the tilting rod.

[0007] As a further description of the above technical solution: the surface of the forward scraper is in contact with the surface of the inclined rod.

[0008] As a further description of the above technical solution: one end of the transmission rod away from the tilting rod is rotatably connected to the inner wall of the lateral scraper.

[0009] As a further description of the above technical solution: the circulation mechanism includes a connecting pipe, a water sprayer, and a cooling box. The connecting pipe is fixedly connected to the bottom of the water storage tank, the water sprayer is installed inside the furnace body, and the cooling box is fixedly connected to the bottom of the furnace body.

[0010] As a further description of the above technical solution: the circulation mechanism also includes a circulation box and a water pumping pipe. The circulation box is fixedly connected to the bottom of the cooling box, and the water pumping pipe is fixedly connected to the left side of the circulation box.

[0011] As a further description of the above technical solution: the surface of the connecting pipe is fixedly connected to the inner wall of the furnace body, and the connecting pipe is fixedly connected to the water sprayer.

[0012] As a further description of the above technical solution: one end of the water pumping pipe away from the circulation box is fixedly connected to the water storage tank.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the coordinated operation among the support frame, furnace body, furnace door, discharge door, roller, water tank, forward scraper, tilting rod, fixed rod, transmission rod, side scraper and sliding block, under the action of the forward scraper and the side scraper, the oxide scale appearing on the surface of the round steel pipe after heating is scraped off, making the surface of the steel pipe smoother and flatter, which is beneficial to subsequent processing, painting and welding operations, and improving the quality and appearance of the finished product.

[0015] 2. In the present invention, through the coordinated operation of the connecting pipe, the water sprayer, the cooling box, the circulation box, and the water pumping pipe, under the action of the water storage tank and the water sprayer, the two processes of heating and cooling can be combined into one process, thereby reducing the conversion time and operation steps between processes, shortening the production cycle, and being able to complete the processing of steel pipes more quickly, thereby increasing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a quick-opening annealing furnace in the present utility model;

[0017] Figure 2 This is a half-section diagram of the overall structure of a quick-opening annealing furnace in the present utility model;

[0018] Figure 3 This is a schematic diagram of the fixing rod structure of a quick-opening annealing furnace in the present utility model;

[0019] Figure 4 The utility model is a schematic cross-sectional view of a water sprayer structure of a fast-opening annealing furnace.

[0020] Legend:

[0021] 1. Support frame; 2. Furnace body; 3. Furnace door; 4. Discharge door; 5. Roller; 6. Water storage tank; 7. Scraping mechanism; 701. Forward scraper; 702. Tilting rod; 703. Fixed rod; 704. Transmission rod; 705. Side scraper; 706. Sliding block; 8. Circulation mechanism; 801. Connecting pipe; 802. Water sprayer; 803. Cooling box; 804. Circulation box; 805. Pumping pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please refer to Figure 1 - Figure 2 The utility model provides an embodiment of a fast-opening annealing furnace, including a support frame 1, which provides a stable support for the device. The top of the support frame 1 is fixedly connected to a furnace body 2. The furnace body 2 is an annealing furnace with a rectangular appearance and a circular interior, which is used for round steel pipes. A furnace door 3 is installed at the front of the furnace body 2, which serves to close the furnace body 2. A discharge door 4 is installed at the rear of the furnace body 2. The discharge door 4 is opened when the material is discharged after cooling. A roller 5 is installed inside the furnace body 2, which can roll and be used to transport the steel pipe. A water tank 6 is fixedly connected to the top of the furnace body 2. The water tank 6 stores coolant or water for cooling the steel pipe inside the furnace body 2. A scraping mechanism 7 is provided inside the discharge door 4, and a circulation mechanism 8 is provided at the bottom of the support frame 1.

[0024] Please refer to Figure 1 - Figure 3 The scraping mechanism 7 consists of a touch component and a scraping component. The scraping component includes a forward scraper 701, a side scraper 705, and a sliding block 706. The forward scraper 701 is slidably connected to the rear of the furnace body 2. There are two groups of forward scrapers 701, which are respectively set above and below the furnace body 2. The side scrapers 705 are slidably connected to the rear of the furnace body 2. There are also two groups of side scrapers 705, which are set on the left and right sides of the furnace body 2. The sliding block 706 is slidably connected to the inner wall of the furnace body 2. The sliding block 706 is used to move the side scraper 705. The surface of the forward scraper 701 is in contact with the surface of the tilting rod 702.

[0025] Please refer to Figure 1 - Figure 3The touch assembly includes a tilting rod 702, a fixed rod 703, and a transmission rod 704. The fixed rod 703 is fixedly connected to the rear part of the furnace body 2. The tilting rod 702 is rotatably connected to the surface of the fixed rod 703. During the movement of the steel pipe, it contacts the forward scraper 701, causing the forward scraper 701 to contract and drive the tilting rod 702 to tilt along the fixed rod 703. The transmission rod 704 is rotatably connected to the inner wall of the tilting rod 702. The tilted end of the tilting rod 702 drives the transmission rod 704 to move. The end of the transmission rod 704 away from the tilting rod 702 is rotatably connected to the inner wall of the side scraper 705. The transmission rod 704 drives the side scraper 705 to slide out through the sliding block 706 to remove the oxide scale on the surface of the steel pipe.

[0026] Please refer to Figure 4 The circulation mechanism 8 includes a connecting pipe 801, a water sprayer 802, and a cooling box 803. The connecting pipe 801 is fixedly connected to the bottom of the water storage tank 6. The water storage tank 6 is installed inside the furnace body 2 through the connecting pipe 801. The water sprayer 802 is installed inside the furnace body 2. The connecting pipe 801 transports water to the water sprayer 802. The cooling box 803 is fixedly connected to the bottom of the furnace body 2. Heat-absorbing fans are set up at the front and back of the cooling box 803 for heat dissipation. The surface of the connecting pipe 801 is fixedly connected to the inner wall of the furnace body 2. The connecting pipe 801 is fixedly connected to the water sprayer 802. The circulation mechanism 8 also includes a circulation box 804 and a water pumping pipe 805. The circulation box 804 is fixedly connected The water is passed through the bottom of the cooling box 803, and then the used water flows into the cooling box 803 through the water leakage hole opened at the bottom of the furnace body 2 for cooling. The cooled water finally enters the circulation box 804 for storage. The pumping pipe 805 is fixedly connected to the left side of the circulation box 804, and then the cooling water is pumped back to the water storage tank 6 through the pumping pipe 805 for storage for recycling. The end of the pumping pipe 805 away from the circulation box 804 is fixedly connected to the water storage tank 6, which saves water resources and combines the two processes of heating and cooling into one process, reducing the conversion time and operation steps between processes.

[0027] Working principle: When in use, the staff will open the furnace door 3, and transport the high-temperature steel pipe after firing to the inside of the furnace body 2 under the action of the roller 5, and then close the furnace door 3, and then control the water storage tank 6 to transport water to the water sprayer 802 through the connecting pipe 801. The water sprayer 802 sprays water to cool the steel pipe. The used water then flows through the leakage hole opened at the bottom of the furnace body 2 to the cooling box 803 for cooling. The cooled water finally enters the circulation box 804 for storage, and then the cooling water is pumped back to the water storage tank 6 through the pumping pipe 805 for storage for recycling. While saving water resources, it also realizes the combination of the two processes of heating and cooling into one process, reducing the conversion time and operation steps between processes. The process of removing the heat from the steel pipe is very simple, which shortens the production cycle and can complete the processing of the steel pipe more quickly, thereby increasing the output. After the deheating process, the operator opens the discharge door 4 and takes out the cooled steel pipe through the roller 5. During the movement of the steel pipe, it contacts the forward scraper 701, causing the forward scraper 701 to shrink and drive the tilting rod 702 to tilt along the fixed rod 703. The tilted end of the tilting rod 702 drives the transmission rod 704 to move, and the transmission rod 704 drives the side scraper 705 to slide out through the sliding block 706 to remove the oxide scale on the surface of the steel pipe, thereby realizing the scraping of the oxide scale that appears on the surface of the round steel pipe after heating, making the surface of the steel pipe smoother and flatter, which is beneficial to subsequent processing, painting and welding operations, and improving the quality and appearance of the finished product.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-opening annealing furnace, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a furnace body (2), a furnace door (3) is installed at the front of the furnace body (2), a discharge door (4) is installed at the rear of the furnace body (2), a roller (5) is installed inside the furnace body (2), a water storage tank (6) is fixedly connected to the top of the furnace body (2), a scraping mechanism (7) is provided inside the discharge door (4), and a circulation mechanism (8) is provided at the bottom of the support frame (1); The scraping mechanism (7) comprises a trigger assembly and a scraping assembly, wherein the scraping assembly comprises a forward scraper (701), a side scraper (705), and a sliding block (706), wherein the forward scraper (701) is slidably connected to the rear of the furnace body (2), the side scraper (705) is slidably connected to the rear of the furnace body (2), and the sliding block (706) is slidably connected to the inner wall of the furnace body (2).

2. A fast-opening annealing furnace according to claim 1, characterized in that: The touch assembly comprises a tilting rod (702), a fixing rod (703), and a transmission rod (704); the fixing rod (703) is fixedly connected to the rear of the furnace body (2); the tilting rod (702) is rotatably connected to the surface of the fixing rod (703); and the transmission rod (704) is rotatably connected to the inner wall of the tilting rod (702).

3. The rapid-opening annealing furnace according to claim 1, characterized in that: The surface of the forward scraper (701) and the surface of the tilting rod (702) are in contact with each other.

4. The rapid-opening annealing furnace according to claim 2, characterized in that: One end of the transmission rod (704) away from the tilting rod (702) is rotatably connected to the inner wall of the lateral scraper (705).

5. The rapid-opening annealing furnace according to claim 1, characterized in that: The circulation mechanism (8) comprises a connecting pipe (801), a water sprayer (802), and a cooling box (803); the connecting pipe (801) is fixedly connected to the bottom of the water storage tank (6); the water sprayer (802) is installed inside the furnace body (2); and the cooling box (803) is fixedly connected to the bottom of the furnace body (2).

6. The rapid-opening annealing furnace according to claim 1, characterized in that: The circulation mechanism (8) further comprises a circulation box (804) and a water extraction pipe (805). The circulation box (804) is fixedly connected to the bottom of the cooling box (803), and the water extraction pipe (805) is fixedly connected to the left side of the circulation box (804).

7. The rapid-opening annealing furnace according to claim 5, characterized in that: The surface of the connecting pipe (801) is fixedly connected to the inner wall of the furnace body (2), and the connecting pipe (801) is fixedly connected to the water sprayer (802).

8. The rapid-opening annealing furnace according to claim 6, characterized in that: One end of the water pumping pipe (805) away from the circulation box (804) is fixedly connected to the water storage tank (6).

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