Thermite mixing device with feeding proportion adjusting function

Abstract

The invention discloses a thermite mixing device with a feeding proportion adjusting function, and relates to the field of thermite mixing equipment, the thermite mixing device comprises a mixer, the top of the mixer is provided with a feeding cylinder, the feeding cylinder is rotatably connected with a cylinder cover, the cylinder cover is fixedly connected with symmetrically distributed feeding pipes, and the bottom of the cylinder cover is fixedly connected with a storage box; two funnel-shaped retention cavities are formed in the storage box, two baffles are symmetrically and slidably connected to a discharging port of each retention cavity, connecting rods are fixedly connected to the bottoms of the retention cavities, electric push rods which are symmetrically distributed are installed on the storage box, and the telescopic ends of the electric push rods are fixedly connected with guide plates. Through the synergistic effect of the induction block, the induction device, the electric push rod, the guide plate, the baffle, the spring and other assemblies, automatic detection of materials, accurate control of the discharging port and flexible adjustment of the feeding proportion are achieved, and the stability and accuracy of the whole discharging process are ensured.

Description

Technical Field

[0001] The invention relates to the field of thermite mixing equipment, in particular to a thermite mixing device with a feed ratio adjustment function. Background Art

[0002] Thermite is a mixture of aluminum powder and certain metal oxides (such as iron oxide and copper oxide). It undergoes a strong exothermic reaction (known as thermite reaction) at high temperatures, releasing a large amount of heat energy. A thermite mixing device is used to prepare thermite by mixing aluminum powder and other raw materials, such as oxides, in a specific proportion.

[0003] In thermite mixing plants, precise control of the feed ratio is crucial to ensuring final product quality. To ensure a more stable feed process, a stagnation box is typically installed below the feed pipe. The material flows into this stagnation box before flowing into the mixing drum for mixing. This design primarily buffers and adjusts the material flow rate, avoiding the instability caused by direct feed. Furthermore, to better achieve proportional adjustment, the feed opening is typically designed with a square shape. This design facilitates more precise control of the feed rate, as the square opening can be adjusted in size by adjusting the position of the baffle, achieving precise adjustment. However, in existing plants, only a single baffle is typically used to control feed. When using a square feed opening, this approach can easily lead to material accumulation in corners. Due to the adhesiveness and easy solidification of raw materials such as aluminum powder and oxide, this accumulated material may gradually solidify, forming a difficult-to-remove residue. This not only affects the subsequent feed ratio accuracy but can also reduce equipment operating efficiency and even cause blockages, further affecting the performance of the entire mixing plant. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing thermite mixing device, such as easy accumulation of materials, low feeding ratio accuracy and unstable equipment operation, the present invention provides a thermite mixing device with a feeding ratio adjustment function.

[0005] A thermite mixing device with a feed ratio adjustment function includes a mixer, a feed barrel is provided on the top of the mixer, a barrel cover is rotatably connected to the top, symmetrically distributed feed pipes are fixedly connected to the barrel cover, a storage box is fixedly connected to the bottom of the barrel cover, two funnel-shaped retention cavities are provided therein, two baffles are symmetrically slidably connected at the discharge port of each retention cavity, and a connecting rod is fixedly connected to the bottom of each baffle, and symmetrically distributed electric push rods are installed on the storage box, and the telescopic ends of the push rods are fixedly connected to guide plates, each guide plate is provided with a curved slide groove, and the connecting rods are respectively located and embedded in adjacent curved slide grooves.

[0006] Furthermore, trapezoidal slides are provided in the symmetrically distributed baffles, and T-shaped slides are slidably connected therein. Springs are connected between the baffles and the storage boxes, and the springs are respectively wound around adjacent slides and are always in a compressed state. Symmetrically distributed elastic cloths are fixed near the discharge port in the retention cavity of the storage box, and their movable ends are fixed to the adjacent slides.

[0007] Furthermore, the slides are both provided with inclined surfaces on the sides close to each other.

[0008] Furthermore, the symmetrically distributed guide plates are all fixedly connected with L-shaped connecting plates, the ends of which are all fixedly connected with triangular guide blocks, and the slides slide in the adjacent guide blocks.

[0009] Furthermore, each retention cavity of the storage box is slidably connected to a top plate, which is provided with a circular through hole for the feeding pipe to pass through. A sensing block is installed on the top of each top plate, and a sensing device is installed on the inner wall of each retention cavity on the side close to the sensing block, which is electrically connected to the electric push rod through the control module.

[0010] Furthermore, the control module uses a dual-signal logic "AND" control method to start the electric push rod. Only when the two baffles are triggered at the same time, the control module will start the electric push rod.

[0011] Furthermore, a vibration motor is installed on the top of each top plate, and a plurality of conduction rods are fixed to the bottom of each top plate.

[0012] Furthermore, each retention cavity of the storage box is fixedly connected to a sieve plate, which is located between the top plate and the baffle.

[0013] The present invention has the following advantages: through the coordinated action of components such as the induction block, the induction device, the electric push rod, the guide plate, the baffle and the spring, the present invention realizes automatic detection of materials, precise control of the discharge port and flexible adjustment of the feeding ratio, thereby ensuring the stability and accuracy of the entire unloading process.

[0014] The present invention effectively loosens the agglomerated materials retained in the cavity through the coordinated action of the vibration device and the conduction rod, thereby improving the filtering efficiency of the filter screen and improving the discharge speed and stability of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a three-dimensional structural cross-sectional view of the cylinder cover, feed pipe, storage box and other components of the present invention.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the baffle, electric push rod, guide plate and other components of the present invention.

[0018] Figure 4 This is a three-dimensional structural cross-sectional view of the baffle, elastic fabric, slide and other components of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the elastic fabric, the slide and the spring of the present invention.

[0020] Figure 6 It is a three-dimensional structural cross-sectional view of the spring, L-shaped connecting plate, guide block and other components of the present invention.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the L-shaped connecting plate and the guide block of the present invention.

[0022] Figure 8 It is a three-dimensional structural cross-sectional view of the top plate, sensing block, sensing device and other components of the present invention.

[0023] Figure 9 This is a three-dimensional structural cross-sectional view of components such as the vibration motor, conduction rod, and sieve plate of the present invention.

[0024] Figure numbers: 1, mixer, 2, cylinder cover, 3, feed pipe, 4, storage box, 5, baffle, 501, connecting rod, 6, electric push rod, 7, guide plate, 8, elastic cloth, 9, slide, 901, inclined plane, 10, spring, 11, L-shaped connecting plate, 12, guide block, 13, top plate, 14, induction block, 15, induction device, 16, vibration motor, 17, conduction rod, 18, screening plate. DETAILED DESCRIPTION

[0025] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1: A thermite mixing device with a feed ratio adjustment function, such as Figure 1-Figure 3 As shown, it includes a mixer 1, which is equipped with a motor and a stirring rod. A feeding barrel is provided on the top of the mixer 1, on which a barrel cover 2 is rotatably connected. The barrel cover 2 is fixed with symmetrically distributed feeding pipes 3, which are used to introduce different materials (such as aluminum powder and iron oxide). The bottom of the barrel cover 2 is fixed with a storage box 4, which is provided with two funnel-shaped retention cavities for temporary storage of materials. Two baffles 5 are symmetrically slidably connected at the discharge port of each retention cavity to adjust the size of the discharge port. Connecting rods 501 are fixed at the bottom of each of them. Symmetrically distributed electric push rods 6 are installed on the storage box 4, and the telescopic ends of the electric push rods are fixed with guide plates 7. Each guide plate 7 is provided with a bent slide groove. The connecting rods 501 are respectively located in the adjacent bent slide grooves to ensure that the movement trajectory of the baffles 5 is stable. By controlling the telescopic distance of the electric push rods 6, the opening and closing degree of the baffles 5 is adjusted to achieve precise feeding ratio control.

[0027] like Figure 4 and Figure 5 As shown, the symmetrically distributed baffles 5 are each provided with a trapezoidal slide, and a T-shaped slide 9 is slidably connected therein, and a spring 10 is connected between the baffle 5 and the storage box 4. The springs 10 are respectively wound around the adjacent slides 9, and are always in a compressed state, providing elastic reset force for the slide 9, ensuring that the discharge port can automatically restore to its initial state after adjustment. The retention cavity of the storage box 4 is fixed with symmetrically distributed elastic cloth 8 near the discharge port, which is used to guide the material flow to the discharge port and prevent accumulation. The movable end is fixed to the adjacent slide 9, and extends or contracts with the movement of the slide 9 to ensure smooth discharge of the material.

[0028] The slides 9 are each provided with an inclined surface 901 on the side close to each other. When the material enters the trapezoidal slide, the inclined surface 901 can push the material out smoothly to prevent it from being trapped in the slide. The design of the inclined surface 901 not only helps to clear the material, but also reduces the obstruction of the material during the movement of the slide 9, ensuring that the discharge port adjustment process is smooth and unobstructed.

[0029] like Figure 6 and Figure 7 As shown, the symmetrically distributed guide plates 7 are all fixed with L-shaped connecting plates 11, and the ends of the guide plates are all fixed with triangular guide blocks 12. The slides 9 slide in the adjacent guide blocks 12, which effectively limits the range of motion of the slides 9, avoids the elastic fabric 8 from being in a taut state for a long time, prevents premature deformation or damage due to excessive stretching, and extends its service life.

[0030] like Figure 8 As shown, each retention cavity of the storage box 4 is slidably connected to a top plate 13, which is provided with a circular through hole for the feeding pipe 3 to pass through, to ensure that it is not hindered by the feeding pipe 3 when moving up and down, and a sensing block 14 is installed on the top of each top plate 13. The inner wall of each retention cavity is equipped with a sensing device 15 on the side close to the sensing block 14, which is electrically connected to the electric push rod 6 through the control module, and the sensing device 15 is used to detect the position status of the top plate 13.

[0031] When the top plate 13 moves to the set position, the sensing device 15 is triggered and sends a signal to the control module. The control module uses a dual-signal logic "AND" control method to activate the electric push rod 6. Only when both baffles 5 are triggered at the same time will the control module activate the electric push rod 6, pushing the baffles 5 to move, achieving precise control of the discharge port.

[0032] Initially, the slide 9 is held in place by the triangular guide block 12, maintaining its outward sliding position. The elastic fabric 8 is now relaxed, while the spring 10 is compressed. First, the materials for making thermite (e.g., aluminum powder and iron oxide) are introduced into the storage box 4 through the feed pipe 3 and temporarily stored in the retention cavity of the storage box 4.

[0033] As material continues to enter, the height of the material trapped in the cavity gradually increases until it contacts the top plate 13. As material continues to enter through the feed pipe 3, it pushes the top plate 13 upward, driving the sensor block 14 upward. When the sensor block 14 contacts the sensing device 15, it triggers the sensing device 15 to send an electrical signal to the control module. Because the control module uses a dual-signal logic "AND" control method to activate the electric push rod 6, the control module will only activate the electric push rod 6 when both sensing devices 15 are triggered simultaneously.

[0034] Upon receiving the signal, electric push rod 6 activates and drives guide plate 7 inward. Because connecting rod 501 is embedded in the adjacent curved chute, guide plate 7, through the curved chute and connecting rod 501, drives baffle 5 outward, thereby opening the discharge port of the retention cavity. At this point, the materials in both retention cavities simultaneously fall into the feed barrel of mixer 1 and ultimately enter mixer 1 for mixing.

[0035] At the same time, when the electric push rod 6 drives the guide plate 7 to move inward, the guide plate 7 drives the guide block 12 to move inward through the L-shaped connecting plate 11. The guide block 12 no longer presses against the slide 9, and the slide 9 moves inward and resets under the elastic force of the spring 10. The elastic cloth 8 is restored to its taut state, thereby guiding the material falling on the elastic cloth 8 to the discharge port, preventing the material from accumulating on the inner side of the baffle 5.

[0036] Based on the desired mix ratio, the operator can adjust the opening and closing of the baffle 5 by controlling the movement distance of the guide plate 7, thereby achieving precise control over the size of the discharge opening. For example, if the ratio of front-side material to rear-side material is 2:1, the front retention cavity will need to hold twice as much material. Therefore, the electric push rod 6 should move the guide plate 7 inward twice as far as the rear-side cavity, thereby opening the discharge opening of the front retention cavity wider and discharging more material.

[0037] As the material in the retained cavity is continuously discharged, the feed pipe 3 continues to feed, thereby maintaining constant contact between the induction block 14 and the induction device 15, causing the baffle 5 to remain open. When the feed pipe 3 stops feeding, as the material in the retained cavity continues to be discharged and no more material is replenished, the top plate 13 and the induction block 14 move down to their initial positions, and the induction block 14 separates from the induction device 15. At this time, the electric push rod 6 drives the guide plate 7 outward to reset, and drives the baffle 5 inward to reset via the connecting rod 501, thereby closing the discharge port of the retained cavity and stopping the discharge of material. Resuming discharge requires waiting until the amount of material in the retained cavity is sufficient to ensure the stability of the discharge process.

[0038] At the same time, the guide plate 7 drives the guide block 12 to move outward and reset through the L-shaped connecting plate 11. The guide block 12 once again abuts the slide 9, and the spring 10 returns to its initial state. In summary, through the coordinated action of the sensing block 14, sensing device 15, electric push rod 6, guide plate 7, baffle 5, and spring 10, automatic material detection, precise control of the discharge port, and flexible adjustment of the feed ratio are achieved, ensuring the stability and accuracy of the entire unloading process.

[0039] Example 2: Figure 9 As shown, a vibration motor 16 is installed on the top of each top plate 13 to generate vibration when the material is piled up or blocked, and to assist the material to pass through the retention cavity smoothly. A plurality of conduction rods 17 are fixed to the bottom of each top plate 13 to guide the vibration into the material.

[0040] Each retention cavity of the storage box 4 is fixed with a sieve plate 18, which is located between the top plate 13 and the baffle 5. It can effectively filter the material entering the retention cavity, remove the agglomerates or large particles therein, and ensure the smooth progress of subsequent processes.

[0041] When the baffle 5 opens to discharge the material, the vibration device can be started through the control module. The vibration device will vibrate the top plate 13 and the conduction rod 17 fixed to its bottom. Since the conduction rod 17 is inserted into the material, the material between the filter screen and the top plate 13 will also vibrate, thereby loosening the material. As the material in the retained cavity is continuously discharged, the vibrated and loosened material will be screened by the filter screen and smoothly discharged into the mixer 1 for subsequent processing. In summary, through the synergistic effect of the vibration device and the conduction rod 17, the agglomerated material in the retained cavity can be effectively loosened, the filtration efficiency of the filter screen can be improved, and the discharge speed and stability of the material can be improved.

[0042] The above embodiments are provided to persons familiar with the art for implementing or using the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A thermite mixing device with a feed ratio adjustment function, comprising a mixer (1), a feed cylinder provided on the top of the mixer (1), a cylinder cover (2) rotatably connected to the top of the mixer, symmetrically distributed feed pipes (3) fixedly connected to the cylinder cover (2), a storage box (4) fixedly connected to the bottom of the cylinder cover (2), and two funnel-shaped retention cavities provided therein, characterized in that: Two baffles (5) are symmetrically slidably connected at the discharge port of each retention cavity, and the bottoms of the baffles are fixedly connected with connecting rods (501). The storage box (4) is equipped with symmetrically distributed electric push rods (6), and the telescopic ends of the push rods are fixedly connected with guide plates (7). Each guide plate (7) is provided with a bent chute, and the connecting rods (501) are respectively located in the adjacent bent chute embedded therein.

2. The thermite mixing device with a feed ratio adjustment function according to claim 1, characterized in that: The symmetrically distributed baffles (5) are all provided with trapezoidal slideways, and are all slidably connected to T-shaped slides (9). Springs (10) are connected between the baffles (5) and the storage box (4). The springs (10) are respectively wound on the adjacent slides (9) and are always in a compressed state. The retention cavity of the storage box (4) is fixed with symmetrically distributed elastic cloths (8) near the discharge port, and the movable ends of the elastic cloths are fixed to the adjacent slides (9).

3. The thermite mixing device with a feed ratio adjustment function according to claim 2, characterized in that: The slides (9) are both provided with inclined surfaces (901) on the sides close to each other.

4. The thermite mixing device with a feed ratio adjustment function according to claim 3, characterized in that: The symmetrically distributed guide plates (7) are all fixedly connected with L-shaped connecting plates (11), and the ends thereof are all fixedly connected with triangular guide blocks (12), and the slides (9) all slide in the adjacent guide blocks (12).

5. The thermite mixing device with a feed ratio adjustment function according to claim 4, characterized in that: Each retention cavity of the storage box (4) is slidably connected to a top plate (13), which is provided with a circular through hole for the feeding pipe (3) to pass through. A sensing block (14) is installed on the top of each top plate (13), and a sensing device (15) is installed on the inner wall of each retention cavity on the side close to the sensing block (14), which is electrically connected to the electric push rod (6) through the control module.

6. The thermite mixing device with a feed ratio adjustment function according to claim 5, characterized in that: The control module uses a dual-signal logic "AND" control method to start the electric push rod (6). Only when the two baffles (5) are triggered at the same time, the control module will start the electric push rod (6).

7. The thermite mixing device with a feed ratio adjustment function according to claim 6, characterized in that: A vibration motor (16) is installed on the top of each top plate (13), and a plurality of conduction rods (17) are fixed to the bottom of each top plate (13).

8. The thermite mixing device with a feed ratio adjustment function according to claim 7, characterized in that: Each retention cavity of the storage box (4) is fixedly connected to a sieve plate (18), which is located between the top plate (13) and the baffle (5).

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