Refractory firing device

Abstract

The application discloses a refractory material baking device which effectively solves the problem of inconvenient inner wall cleaning during rotary kiln baking; the device comprises a rotary kiln main body which is left-right axial and rotatable, bearing shafts are coaxially and rotatably connected to the left and right sides of the rotary kiln main body, a rotating shaft which is left-right axial is rotatably connected between the two bearing shafts, a plurality of connecting rods which are uniformly distributed along the left-right direction are arranged on the rotating shaft, knocking balls which can contact the rotary kiln main body are arranged at the front ends of the connecting rods, gears are coaxially arranged on the left and right sides of the rotating shaft, and a plurality of arc-shaped racks which are uniformly distributed along the circumferential direction of the rotary kiln main body and can contact the gears are arranged on the left and right sides of the rotary kiln main body; the device has the advantages of simple structure, novel design, convenient use and strong practicability.

Description

Technical Field

[0001] This utility model relates to the field of refractory material production technology, and in particular to a refractory material calcination device. Background Technology

[0002] In the production process of refractory materials, calcination is a crucial step. Its purpose is to sinter the green body through high-temperature heat treatment, thereby achieving the required physical properties and chemical stability. Currently, rotary kilns or stationary calcining furnaces are widely used in industrial production to process refractory materials. Among them, devices with calcining drums are widely used because they can achieve uniform heating and continuous production.

[0003] However, in existing rotary kilns, during the roasting process, the binders, moisture, and certain low-melting-point substances contained in the refractory billets melt or volatilize at high temperatures and then re-condense, easily adhering to the inner wall of the roasting drum. This adhesion not only leads to product nodules and uneven heating, affecting the consistency and quality of the roasted product, but also gradually forms a stubborn kiln lining, significantly reducing the heat transfer efficiency of the drum and increasing fuel consumption. To remove these adhering substances, the traditional method generally relies on intermittent shutdowns for cooling, followed by manual entry into the drum for knocking and cleaning. However, this manual cleaning method has the following drawbacks in actual use: the manual working environment is harsh, the labor intensity is high, and there are safety hazards. Moreover, frequent shutdowns severely restrict equipment utilization and the continuous operation capability of the production line, resulting in decreased production efficiency and increased production costs. Utility Model Content

[0004] In view of the above situation and in order to make up for the shortcomings of the existing technology, the purpose of this utility model is to provide a refractory material roasting device, which effectively solves the problem of inconvenient cleaning of the inner wall during the roasting of existing rotary kilns.

[0005] The technical solution is as follows: This utility model includes a rotary kiln body that is rotatable along the left and right axes. The left and right sides of the rotary kiln body are coaxially connected to bearings. The two bearings are rotatably connected to a rotating shaft along the left and right axes. The rotating shaft is provided with multiple connecting rods evenly distributed along the left and right directions. The front end of the connecting rod is provided with a striking ball that can contact the rotary kiln body. Gears are coaxially provided on the left and right sides of the rotating shaft. The left and right sides of the rotary kiln body are provided with multiple arc-shaped racks evenly distributed along their circumference and that can contact the gears.

[0006] Preferably, the lower end of the bearing is provided with a support block.

[0007] Preferably, baffles are provided at both ends of the rotating shaft, and a torsion spring is fitted on the rotating shaft. One end of the torsion spring is fixed to the baffle and the other end is fixed to the bearing.

[0008] Preferably, the rotary kiln has a drive wheel located to the right of the rotating shaft on the right side, a motor is mounted on the support block on the right side, and a drive wheel that can cooperate with the drive wheel is coaxially mounted on the output shaft of the motor.

[0009] Preferably, the striking ball is made of a high-temperature resistant metal material.

[0010] Preferably, the load-bearing bearing is a self-aligning roller bearing.

[0011] Compared with existing technologies, the beneficial effects of this utility model are: it enables the rotary firing of refractory materials, and simultaneously allows the striking balls to strike the outer wall of the rotary kiln at high speed and with great force, thereby achieving automatic, continuous, and uniform mechanical knocking cleaning of the inner wall of the rotary kiln. This fundamentally overcomes the inherent defects of traditional manual cleaning methods that require machine shutdown, thus greatly improving equipment utilization and the continuous operation capability of the production line, significantly increasing production efficiency, and effectively avoiding the need for operators to enter high-temperature and harsh environments for high-risk manual cleaning, completely eliminating the corresponding safety hazards, greatly improving working conditions, and ensuring good heat conduction performance of the inner wall of the rotary kiln through continuous cleaning, reducing heat loss caused by kiln skin adhesion and nodules, helping to reduce fuel consumption per unit product and save production costs. Attached Figure Description

[0012] Figure 1 This is the main view axonometric drawing of this utility model.

[0013] Figure 2 This is a full-section left-side axonometric drawing of this utility model.

[0014] Figure 3 This is a full-section right-view axonometric drawing of this utility model.

[0015] Figure 4 This is a full-section main view axonometric drawing of this utility model.

[0016] Figure label:

[0017] 1. Rotary kiln body; 2. Bearing; 3. Shaft; 4. Connecting rod; 5. Striking ball; 6. Gear; 7. Arc rack; 8. Support block; 9. Baffle; 10. Torsion spring; 11. Drive wheel; 12. Motor; 13. Drive wheel. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Depend on Figures 1 to 4 The invention includes a rotary kiln body 1 that is rotatable along the left and right axes. The left and right sides of the rotary kiln body 1 are coaxially connected to bearing bearings 2. The two bearing bearings 2 are rotatably connected to a rotating shaft 3 along the left and right axes. The rotating shaft 3 is provided with multiple connecting rods 4 evenly distributed along the left and right directions. The front end of the connecting rod 4 is provided with a striking ball 5 that can contact the rotary kiln body 1. The left and right sides of the rotating shaft 3 are coaxially provided with gears 6. The left and right sides of the rotary kiln body 1 are provided with multiple arc-shaped racks 7 evenly distributed along their circumference and that can contact the gears 6.

[0022] For ease of support, a support block 8 is provided at the lower end of the bearing 2.

[0023] To facilitate increasing the striking force, baffles 9 are provided at both ends of the rotating shaft 3. A torsion spring 10 is fitted on the rotating shaft 3. One end of the torsion spring 10 is fixed to the baffle 9 and the other end is fixed to the bearing 2.

[0024] To facilitate the rotation of the rotary kiln, a drive wheel 11 is provided on the right side of the rotary kiln, located to the right of the rotating shaft 3. A motor 12 is provided on the support block 8 on the right side, and a drive wheel 13 that can cooperate with the drive wheel 11 is provided on the output shaft of the motor 12.

[0025] For ease of use, the striking ball 5 is made of high-temperature resistant metal material.

[0026] For ease of use, the bearing 2 is a self-aligning roller bearing.

[0027] When this utility model is in use, the motor 12 is started, and the motor 12 drives the drive wheel 13 on its output shaft to rotate. The drive wheel 13, through cooperation with the drive wheel 11, drives the rotary kiln body 1 to rotate slowly around its left and right axes to carry out normal refractory material calcination. During the rotation of the rotary kiln body 1, when a certain arc-shaped rack 7 on its cylinder body contacts and enters the meshing state with the gear 6 on the same side of the rotating shaft 3, it will drive the rotating shaft 3 to rotate. At this time, the rotation of the rotating shaft 3 will cause the torsion spring 10 mounted on it to torsionally store energy, and the torsion force of the torsion spring 10, which is fixed at one end on the baffle 9 of the rotating shaft 3 and at the other end on the bearing 2, will increase accordingly.

[0028] When gear 6 disengages from the arc-shaped rack 7 as the rotary kiln body 1 continues to rotate, the elastic potential energy stored in the torsion spring 10 is released instantly, driving the rotating shaft 3 to rotate in the opposite direction at high speed. This causes the striking ball 5, which is fixed on the rotating shaft 3 and connected to it via the connecting rod 4, to violently strike the outer wall of the rotary kiln body 1 under inertia. This vibration is transmitted to the interior, shaking off the material adhering to the inner wall. Every time the rotary kiln body 1 rotates a certain angle, the arc-shaped racks 7 on both sides will sequentially repeat the above process of engagement, energy storage, disengagement, release, and striking with the gear 6 on the same side. This achieves automatic, continuous, and uniform striking and cleaning of the entire circumferential and axial outer wall of the rotary kiln body 1. The entire process can be completed automatically without stopping the machine, effectively preventing the material from sticking to the inner wall of the cylinder.

[0029] Compared with existing technologies, the beneficial effects of this utility model are as follows: the rotary kiln body, striking ball, torsion spring, etc., enable the rotary firing of refractory materials, while allowing the striking ball to strike the outer wall of the rotary kiln at high speed and force, thereby achieving automatic, continuous, and uniform mechanical knocking cleaning of the inner wall of the rotary kiln. This fundamentally overcomes the inherent defects of traditional manual cleaning methods that require machine shutdown, thus greatly improving equipment utilization and the continuous operation capability of the production line, significantly increasing production efficiency, and effectively avoiding the need for operators to enter high-temperature and harsh environments for high-risk manual cleaning, completely eliminating the corresponding safety hazards, greatly improving working conditions. The continuous cleaning effect ensures good heat conduction performance of the inner wall of the rotary kiln, reduces heat loss caused by kiln skin adhesion and nodules, helps to reduce fuel consumption per unit product, and saves production costs. This structure is simple, novel in design, easy to use, and highly practical.

[0030] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A refractory material calcination apparatus, comprising a rotary kiln body (1) that is rotatable along a left-right axis, characterized in that, The rotary kiln body (1) is connected to the left and right sides of the bearing (2) on the same axis. The two bearings (2) are connected to the left and right axis of the rotating shaft (3). The rotating shaft (3) is provided with multiple connecting rods (4) evenly distributed in the left and right direction. The front end of the connecting rod (4) is provided with a striking ball (5) that can contact the rotary kiln body (1). The left and right sides of the rotating shaft (3) are provided with gears (6) on the same axis. The left and right sides of the rotary kiln body (1) are provided with multiple arc-shaped racks (7) evenly distributed in the circumferential direction and that can contact the gears (6).

2. The refractory material calcination apparatus according to claim 1, characterized in that, The bearing (2) is provided with a support block (8) at its lower end.

3. The refractory material calcination apparatus according to claim 1, characterized in that, The rotating shaft (3) is provided with baffles (9) at both ends. A torsion spring (10) is fitted on the rotating shaft (3). One end of the torsion spring (10) is fixed to the baffle (9) and the other end is fixed to the bearing (2).

4. The refractory material calcination apparatus according to claim 1, characterized in that, The rotary kiln body (1) has a drive wheel (11) located to the right of the rotating shaft (3) on the right side, and a motor (12) is provided on the support block (8) on the right side. The output shaft of the motor (12) is coaxially provided with a drive wheel (13) that can cooperate with the drive wheel (11).

5. The refractory material calcination apparatus according to claim 1, characterized in that, The striking ball (5) is made of high-temperature resistant metal material.

6. The refractory material calcination apparatus according to claim 1, characterized in that, The bearing (2) is a self-aligning roller bearing.

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