Low-temperature calcining furnace for processing chromium-free refractory material

Abstract

The utility model relates to a low-temperature forging furnace, belongs to the technical field of forging furnaces, and particularly relates to a low-temperature calcining furnace for processing chromium-free refractory materials. According to the utility model, raw materials are put into the feeding pipe and fall onto the conveying auger along the feeding pipe, the raw materials move downwards along the conveying auger due to the weight of the raw materials, the bottom of the conveying auger is positioned in the sealing box, and the sealing box is communicated with the interior of the furnace body, so that heat in the furnace body can be transmitted into the sealing box through the air inlet hole of the baffle plate; when discharging is needed, a movable pull rod moves upwards to drive a connecting plate and a limiting plate to move upwards, so that the limiting plate does not abut against a rotating plate any more, at the moment, the rotating plate is pulled to rotate through a handle, the rotating plate rotates to 90 degrees, and then the raw materials on the conveying auger are preheated, so that the raw materials enter the furnace body to be calcined, and the working efficiency of the device is improved. And therefore, calcined materials in the furnace body are moved out, the rapid discharging effect is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of forging furnace technology, specifically a low-temperature calcining furnace for processing chromium-free refractory materials. Background Technology

[0002] A low-temperature calcining furnace is a specialized piece of equipment used to heat treat materials at relatively low temperatures (usually below the temperature of traditional high-temperature processes, such as ≤1450℃).

[0003] Chinese patent CN221924565U discloses a calcining furnace, including an outer shell, a chute, a conveying shell, a baffle, a pulley, and a connecting rod. The outer shell is fixedly connected to the conveying shell and is located on one side of the conveying shell. The chute is located below the outer shell. The baffle is fixedly connected to the connecting rod and is located at one end of the connecting rod. The pulley is rotatably connected to the connecting rod and is located at the other end of the connecting rod, and the pulley is adapted to the chute. After calcination is completed, the drive motor is started to rotate the gear, which drives the rack to move. The rack drives the baffle to move. Through the sliding of the pulley in the chute, the baffle will slide out, and the calcined raw material will fall from the outer shell, achieving the purpose of material discharge. This solves the problem that it is difficult to remove the raw material after calcination, which is inconvenient for material discharge.

[0004] In the above technical solution, the added raw materials are fed into the outer shell through the conveyor shell. However, the temperature difference between the raw materials that have already been calcined in the outer shell and the newly added raw materials is large, which prolongs the calcination time and thus reduces the working efficiency of the device.

[0005] Based on this, this utility model proposes a low-temperature calcining furnace for processing chromium-free refractory materials. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes a low-temperature calcining furnace for processing chromium-free refractory materials. This furnace, through the cooperation of a sealed box and a conveying auger, preheats newly added raw materials, improving the device's working efficiency. Furthermore, the cooperation of a rotating plate and side plates facilitates material unloading, enhancing the device's practicality.

[0007] The technical solution to achieve the purpose of this utility model is: a low-temperature calcining furnace for processing chromium-free refractory materials, including a furnace body, a sealing box fixedly connected to the furnace body, and further comprising;

[0008] The feed pipe is fixedly connected to the sealing box, the sealing box is fixedly connected to the connecting shaft, the connecting shaft is fixedly connected to the conveying auger, the furnace body is provided with a through groove, a baffle is rotatably connected in the through groove, and multiple air inlets are provided on the baffle.

[0009] Preferably, a rotating plate is rotatably connected inside the furnace body, and two side plates are fixedly connected to the rotating plate.

[0010] Preferably, a handle is fixedly connected to the rotating plate, and a fixing box is fixedly connected to the furnace body.

[0011] Preferably, a plurality of limiting plates are slidably connected inside the fixing box, and a connecting plate is fixedly connected to the plurality of limiting plates.

[0012] Preferably, a plurality of springs are fixedly connected to the connecting plate, and the plurality of springs are fixedly connected inside the fixing box. A pull rod is fixedly connected to the connecting plate.

[0013] Preferably, two coil springs are fixedly connected to each side of the baffle, and the two coil springs are fixedly connected to the furnace body.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] Firstly, in this utility model, the raw material is placed into the feed pipe and falls onto the conveying auger along the feed pipe. Due to the weight of the raw material itself, it moves down along the conveying auger. Since the bottom of the conveying auger is located inside the sealed box, and the sealed box is connected to the inside of the furnace, the heat inside the furnace will be transferred to the sealed box through the air inlet of the baffle, preheating the raw material on the conveying auger, making it easier for the raw material to enter the furnace for calcination, thus improving the working efficiency of the device.

[0016] Secondly, in this utility model, when material needs to be unloaded, the moving rod moves upward, causing the connecting plate and the limiting plate to move upward, so that the limiting plate no longer blocks the rotating plate. At this time, by pulling the handle, the rotating plate is rotated to ninety degrees, thereby removing the calcined material from the furnace, achieving the effect of rapid material unloading and improving the practicality of the device. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a frontal sectional view of the structure of this utility model;

[0020] Figure 3 This is the left-side sectional view of the structure of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the material feeding state in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Furnace body; 2. Rotating plate; 3. Side plate; 4. Handle; 5. Fixed box; 6. Limiting plate; 7. Connecting plate; 8. Spring; 9. Pull rod; 10. Sealing box; 11. Through groove; 12. Feed pipe; 13. Connecting shaft; 14. Conveyor auger; 15. Baffle; 16. Air inlet hole; 17. Volute spring. Detailed implementation manner

[0024] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides a low-temperature calcination furnace for processing chromium-free refractory materials through improvement. The technical solution of the present utility model is as follows:

[0026] As Figures 1-4 shown, a low-temperature calcination furnace for processing chromium-free refractory materials includes a furnace body 1, and a sealing box 10 is fixedly connected to the furnace body 1. It also includes;

[0027] A feed pipe 12, the feed pipe 12 is fixedly connected to the sealing box 10, the cross-section of the feed pipe 12 is in the shape of "factory", a connecting shaft 13 is fixedly connected to the sealing box 10, a conveyor auger 14 is fixedly connected to the connecting shaft 13, a through groove 11 is opened on the furnace body 1, a baffle 15 is rotatably connected in the through groove 11, and a plurality of air inlet holes 16 are opened on the baffle 15. The hot air in the furnace body 1 enters the sealing box 10 through the air inlet holes 16 to preheat the raw materials in the feed pipe 12, facilitating the raw materials to be calcined faster after entering the furnace body 1, and improving the working efficiency of the device.

[0028] Furthermore, as Figures 1-4 shown, a rotating plate 2 is rotatably connected in the furnace body 1, the cross-section of the rotating plate 2 is in the shape of "L", and two side plates 3 are fixedly connected to the rotating plate 2, and the two side plates 3 are symmetrical about the rotating plate 2.

[0029] Furthermore, as Figures 1-4 shown, a handle 4 is fixedly connected to the rotating plate 2, and a fixed box 5 is fixedly connected to the furnace body 1. The fixed box 5 is located at the top of the furnace body 1 near the handle 4.

[0030] Furthermore, as Figures 1-4 shown, a plurality of limiting plates 6 are slidably connected in the fixed box 5, the cross-section of the limiting plates 6 is in the shape of "L", the limiting plates 6 are linearly arrayed in the fixed box 5, and a connecting plate 7 is fixedly connected to the plurality of limiting plates 6, and the limiting plates 6 are synchronously moved through the connecting plate 7.

[0031] Furthermore, such as Figures 1-4 As shown, multiple springs 8 are fixedly connected to the connecting plate 7, and the multiple springs 8 are fixedly connected to the fixed box 5. A pull rod 9 is fixedly connected to the connecting plate 7. The cross section of the pull rod 9 is inverted "U" shape. The rotating plate 2 is limited by the limiting plate 6 to prevent the rotating plate 2 from shaking during operation and affecting the calcination of the raw materials.

[0032] Furthermore, such as Figure 3 As shown, two coil springs 17 are fixedly connected to both sides of the baffle 15. The two coil springs 17 are fixedly connected inside the furnace body 1. The baffle 15 blocks the through groove 11, so that the raw material can only enter the furnace body 1 from the feed pipe 12 and cannot enter the feed pipe 12 from the furnace body 1. This avoids pushing the calcined material into the through groove 11 when feeding with the rotating plate 2, which would cause material loss.

[0033] The specific working method is as follows: Raw materials are placed into the feed pipe 12 and fall onto the conveying auger 14. Due to their own weight, the raw materials move downwards along the conveying auger 14. Since the bottom of the conveying auger 14 is located inside the sealed box 10, and the sealed box 10 is connected to the interior of the furnace body 1, the heat from the furnace body 1 is transferred to the sealed box 10 through the air inlet 16 of the baffle 15, preheating the raw materials on the conveying auger 14. This facilitates the raw materials entering the furnace body 1 for calcination, improving the efficiency of the device. To improve efficiency, the raw material falls onto the baffle 15. As the weight of the raw material increases, it pushes the baffle 15 to rotate, allowing the raw material to enter the furnace body 1. The baffle 15 then resets under the action of the coil spring 17. When it is necessary to unload the material, the pull rod 9 is pulled upward, which moves the connecting plate 7 and the limiting plate 6 upward, so that the limiting plate 6 no longer blocks the rotating plate 2. At this time, the handle 4 is used to pull the rotating plate 2 to rotate it to ninety degrees, thereby removing the calcined material from the furnace body 1. This achieves the effect of rapid unloading and improves the practicality of the device.

[0034] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A low-temperature calcining furnace for processing chromium-free refractory materials, comprising a furnace body (1), characterized in that: A sealing box (10) is fixedly connected to the furnace body (1), and it also includes; Feed pipe (12), the feed pipe (12) is fixedly connected to the sealing box (10), the sealing box (10) is fixedly connected to the connecting shaft (13), the connecting shaft (13) is fixedly connected to the conveying auger (14), the furnace body (1) is provided with a through groove (11), the through groove (11) is rotatably connected to a baffle (15), the baffle (15) is provided with multiple air inlets (16).

2. The low-temperature calcining furnace for processing chromium-free refractory materials according to claim 1, characterized in that: The furnace body (1) is rotatably connected to a rotating plate (2), and two side plates (3) are fixedly connected to the rotating plate (2).

3. The low-temperature calcining furnace for processing chromium-free refractory materials according to claim 2, characterized in that: A handle (4) is fixedly connected to the rotating plate (2), and a fixing box (5) is fixedly connected to the furnace body (1).

4. The low-temperature calcining furnace for processing chromium-free refractory materials according to claim 3, characterized in that: Multiple limiting plates (6) are slidably connected inside the fixed box (5), and connecting plates (7) are fixedly connected to the multiple limiting plates (6).

5. The low-temperature calcining furnace for processing chromium-free refractory materials according to claim 4, characterized in that: Multiple springs (8) are fixedly connected to the connecting plate (7), and the multiple springs (8) are fixedly connected inside the fixing box (5). A pull rod (9) is fixedly connected to the connecting plate (7).

6. The low-temperature calcining furnace for processing chromium-free refractory materials according to claim 1, characterized in that: Two coil springs (17) are fixedly connected to both sides of the baffle (15), and the two coil springs (17) are fixedly connected inside the furnace body (1).

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