A refractory gun

Abstract

The utility model relates to material mixing technical field discloses a refractory material spraying machine, including hopper seat, the coaxial elasticity of hopper seat is provided with hopper, the inside setting of hopper has the fairing, the fairing is the conical structure of tip end upwards, interval setting between the fairing bottom and the hopper inner wall, forms the blanking channel, the inside setting of hopper below the fairing has upper filter screen, and the upper filter screen is inverted circular table type. The utility model, both can increase the filtration area and promote the filtration efficiency, can reduce the dust escape amount to the surrounding environment and reduce the adverse effect to the worker machine environment.

Description

Technical Field

[0001] This utility model relates to the field of refractory materials technology, and in particular to a refractory material spraying machine. Background Technology

[0002] Refractory spraying machines are used for spraying and molding or repairing furnace linings. Existing spraying machines for dry refractory application typically have a filter screen installed above the hopper to prevent pipe blockage during spraying. Workers continuously pour refractory material upwards, trapping large particles at the top of the screen, while the filtered refractory is sprayed out through the spray pipe. However, existing dry refractory spraying machines have the following problems: the filter screen is a planar structure with a limited filtration area. As multiple workers continuously pour refractory material into the hopper, the unfiltered and undried refractory material accumulates and collides on the screen, generating significant dust that escapes into the surrounding environment, negatively impacting the work environment. Furthermore, workers need to wear masks to prevent inhaling excessive dust, which can harm their health. Therefore, there is an urgent need for a refractory spraying machine that improves filtration efficiency and reduces dust escape. Utility Model Content

[0003] The purpose of this invention is to provide a refractory material shotcrete machine that can increase the filtration area and improve filtration efficiency, while reducing the amount of dust escaping into the surrounding environment and minimizing the adverse effects on workers and the environment.

[0004] The present invention adopts the following technical solution:

[0005] A refractory material shotcrete machine includes a hopper base, on which a hopper is coaxially and elastically disposed. A flow guide is disposed inside the hopper, the flow guide being a conical structure with its tip pointing upwards. The bottom of the flow guide is spaced apart from the inner wall of the hopper to form a material discharge channel. An upper filter screen is disposed inside the hopper below the flow guide, the upper filter screen being an inverted frustum shape.

[0006] Preferably, the air deflector has a hollow internal structure and its bottom is open.

[0007] Preferably, a lower filter screen is provided in the hopper below the upper filter screen, and the lower filter screen is frustoconical; the bottom of the upper filter screen is open, and a material discharge channel is formed between the bottom of the upper filter screen and the top of the lower filter screen; a discharge port is provided on the side wall of the hopper, and a sealing plate is hinged in the discharge port.

[0008] Preferably, a support rod is provided at the top of the lower filter screen, and the flow guide is provided at the top of the support rod.

[0009] Preferably, the area of ​​the bottom of the support rod is not less than the area of ​​the top of the lower filter screen.

[0010] Preferably, the support rod is rotatably connected to the lower filter screen, and a cleaning rod is provided on the support rod, wherein the cleaning rod is in contact with the surface of the lower filter screen in the initial state.

[0011] Preferably, a plurality of springs are provided between the outer wall of the hopper and the hopper seat.

[0012] Preferably, the outer wall of the hopper and the outer wall of the hopper seat below it are both provided with mounting blocks along the circumferential direction, and the spring is disposed between the mounting blocks; a guide rod is movably inserted between the two opposing mounting blocks.

[0013] Preferably, a retractable flexible sealing sleeve is provided between the bottom of the hopper and the top of the hopper seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a frustum-shaped filter screen inside the hopper, this utility model can increase the filtration area and improve the filtration efficiency. At the same time, the frustum-shaped structure can also reduce the distance between the refractory material and the top of the hopper when it falls onto the filter screen, thus extending the distance that the refractory material needs to travel when it overflows from the hopper, and reducing the amount of refractory material escaping from the hopper to a certain extent. In addition, the conical guide hood can further block the refractory material rising and escaping in the filter screen, and can also disperse the falling refractory material so that it falls smoothly into the filter screen below, avoiding the situation where the refractory material accumulates and blocks the filter screen and does not fall easily, thereby improving the filtration efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the internal structure of the hopper in an embodiment of this application. Detailed Implementation

[0017] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0018] like Figures 1 to 2As shown, the refractory material shotcrete machine of this utility model includes a hopper base 1, a hopper 2 coaxially and elastically mounted on the hopper base 1, a vibrating motor 3 mounted on the hopper 2, and a flow guide 4 inside the hopper 2. The flow guide 4 is a conical structure with its tip pointing upwards, which can guide the dry refractory material poured into the hopper 2, making it easier to disperse the refractory material and make it fall evenly along the circumferential side of the flow guide 4. The bottom of the flow guide 4 is spaced apart from the inner wall of the hopper 2 to form a material falling channel. An upper filter screen 5 is installed in the hopper 2 below the flow guide 4. The upper filter screen 5 is an inverted frustum shape, which can increase the filtration area and improve the filtration efficiency. At the same time, the frustum shape can also reduce the distance between the refractory material and the top of the hopper 2 when the refractory material falls onto the filter screen, and extend the distance that the refractory material needs to travel when it overflows from the hopper 2, thus reducing the amount of refractory material escaping from the hopper 2 to a certain extent. During operation, multiple workers use shovels to pour refractory material into hopper 2. The refractory material first collides with the guide hood 4 and is broken up, then falls evenly along the surface of the guide hood 4 from the material drop channel into the upper filter screen 5. After being filtered and screened by the upper filter screen 5, it falls into the equipment below. Through the optimized design of the upper filter screen 5 structure and the design of the guide hood 4, the amount of dust escaping into the surrounding environment is effectively reduced, thus reducing the adverse impact on the environment and worker safety during operation, while ensuring work efficiency.

[0019] Furthermore, the flow guide 4 has an internally hollow structure and its bottom is open, which can increase the interception space for dust and reduce the probability that dust will escape between the flow guide 4 and the side wall of the hopper 2 after colliding with the bottom of the flow guide 4.

[0020] Furthermore, a lower filter screen 6 is installed in the hopper 2 below the upper filter screen 5. The lower filter screen 6 is frustoconical. The bottom of the upper filter screen 5 is open, and a material drop channel is formed between the bottom of the upper filter screen 5 and the top of the lower filter screen 6. A discharge port 7 is opened on the side wall of the hopper 2, and a sealing plate 8 is hinged inside the discharge port 7. The lower filter screen 6 allows large particles filtered out to fall along its inclined wall surface to the connection between the lower filter screen 6 and the inner wall of the hopper 2 for temporary storage, facilitating subsequent discharge through the discharge port 7. A support rod 9 is installed on the top of the lower filter screen 6, and a guide hood 4 is installed on the top of the support rod 9. The bottom area of ​​the support rod 9 is not less than the top area of ​​the lower filter screen 6, and preferably the bottom area of ​​the support rod 9 is equal to the top area of ​​the lower filter screen 6 to prevent the accumulation of refractory material on the top of the lower filter screen 6.

[0021] Furthermore, the support rod 9 is rotatably connected to the lower filter screen 6, and a cleaning rod 10 is provided on the support rod 9. In the initial state, the cleaning rod 10 is in contact with the surface of the lower filter screen 6. The cleaning rod 10 helps to push the large particles that fall below the lower filter screen 6 to the discharge port 7 for discharge when the filtered large particles are discharged. This is achieved by rotating the guide shroud 4 to drive the support rod 9 to rotate, thereby enhancing the practicality of this invention.

[0022] Furthermore, multiple springs 11 are provided between the outer wall of the hopper 2 and the hopper seat 1 to realize the up-and-down vibration of the hopper 2 when the vibrating motor 3 is working; specifically, mounting blocks 12 are provided along the circumferential direction on both the outer wall of the hopper 2 and the outer wall of the hopper seat 1 below it, and the springs 11 are placed between the mounting blocks; a guide rod 13 is movably inserted between the two upper and lower opposing mounting blocks 12 to ensure that the hopper 2 vibrates in the vertical direction during vibration; in addition, a retractable flexible sealing sleeve 14 is provided between the bottom of the hopper 2 and the top of the hopper seat 1, which can be a flexible bamboo joint hose, to seal the connection between the hopper 2 and the hopper seat 1 to prevent dust from escaping from the connection between the hopper 2 and the hopper seat 1, without affecting the up-and-down movement of the hopper 2 during vibration.

[0023] In this invention, when a worker adds refractory material to the hopper 2 using a shovel, the refractory material first collides with the guide shroud 4 and is dispersed, falling down the slope of the guide shroud 4 into the material discharge channel between the guide shroud 4 and the hopper 2. It then passes through the upper filter screen 5 and the lower filter screen 6 before entering the device below. The optimized design of the upper filter screen 5 increases the filtration area and improves filtration efficiency. Simultaneously, the frustum-shaped structure reduces the distance between the refractory material and the top of the hopper 2 when it falls onto the filter screen, extending the distance the refractory material needs to travel when overflowing from the hopper 2. Combined with the guide shroud 4, this significantly reduces the amount of refractory material escaping from the hopper 2. The lower filter screen 6 facilitates the diversion of large particles, allowing them to fall smoothly down the wall of the lower filter screen 6 for easy discharge. The design is simple, easy to operate, and highly practical.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A refractory material shotcrete machine, comprising a hopper base, wherein a hopper is coaxially and elastically disposed on the hopper base, characterized in that: The hopper is equipped with a flow guide hood, which is a cone-shaped structure with the tip pointing upwards. The bottom of the flow guide hood is spaced apart from the inner wall of the hopper to form a material discharge channel. Below the flow guide hood, the hopper is equipped with an upper filter screen, which is an inverted frustum shape.

2. The refractory spraying machine according to claim 1, characterized in that: The aforementioned air deflector has a hollow internal structure and its bottom is open.

3. The refractory material shotcrete machine according to claim 1, characterized in that: A lower filter screen is provided in the hopper below the upper filter screen. The lower filter screen is frustoconical. The bottom of the upper filter screen is open, and a material discharge channel is formed between the bottom of the upper filter screen and the top of the lower filter screen. A discharge port is provided on the side wall of the hopper, and a sealing plate is hinged in the discharge port.

4. The refractory material shotcrete machine according to claim 3, characterized in that: The lower filter screen is provided with a support rod at the top, and the flow guide is provided at the top of the support rod.

5. The refractory material shotcrete machine according to claim 4, characterized in that: The area at the bottom of the support rod is not less than the area at the top of the lower filter screen.

6. The refractory material shotcrete machine according to claim 5, characterized in that: The support rod is rotatably connected to the lower filter screen, and a cleaning rod is provided on the support rod. In the initial state, the cleaning rod is in contact with the surface of the lower filter screen.

7. The refractory material shotcrete machine according to claim 1, characterized in that: Multiple springs are provided between the outer wall of the hopper and the hopper seat.

8. The refractory spraying machine according to claim 7, characterized in that: The outer wall of the hopper and the outer wall of the hopper seat below it are both provided with mounting blocks along the circumferential direction, and the spring is disposed between the mounting blocks; a guide rod is movably inserted between the two opposing mounting blocks.

9. The refractory material shotcrete machine according to claim 8, characterized in that: A retractable flexible sealing sleeve is provided between the bottom of the hopper and the top of the hopper seat.

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