Powdery material hopper dredging device

Abstract

A powdery material hopper dredging device is based on a hopper box body, the hopper box body is an inverted prismatic table-shaped hopper with openings in the upper end and the lower end, a discharging opening is formed in the opening in the bottom end, and the powdery material hopper dredging device comprises a compressed air main pipeline, a rubber baffle, dredging connecting holes and compressed air branch pipelines. The rubber baffle is arranged on at least one surface of the inner side of the hopper box body, the top of the rubber baffle is connected with the hopper box body, the bottom of the rubber baffle is not connected with the hopper box body, and the dredging connecting hole is formed in the hopper box body, shielded by the bottom of the rubber baffle and connected with a compressed air main pipeline through a compressed air branch pipeline. Compressed air is arranged in the compressed air main pipeline, and the compressed air is blown out from the dredging connecting hole to agitate the rubber baffle, so that the materials are pushed, and the hopper is dredged. The hopper box body can be quickly and effectively dredged, powdery materials containing water are prevented from blocking the hopper box body, operators are prevented from entering the hopper, and therefore high-risk operation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material conveying technical field, concretely relates to a powdery material hopper dredging device. BACKGROUND

[0002] In the production process of steel enterprises, the use of powdery material hopper is extremely common. However, due to the presence of a certain proportion of moisture in the material, the moisture in the hopper is easy to cause material caking, and further cause the phenomenon of material accumulation in the hopper, which may cause hopper plugging in severe cases. This not only seriously affects the smooth progress of the production process, but also forces enterprises to increase the workload of the post and improve the labor cost.

[0003] When the hopper is plugged, the traditional solution often requires workers to enter the hopper interior for manual cleaning. This operation method is not only tedious and time-consuming, but also involves special dangerous operations because of the limited space inside the hopper and the need for high-altitude operation. Workers face many safety risks in such operations, such as poisoning and high-altitude falling, which pose a serious threat to safety production.

[0004] In summary, the current steel enterprises still face many challenges in the dredging of powdery material hoppers. From the aspects of improving production efficiency, reducing labor costs and ensuring operation safety, there is still room for further improvement and optimization. Therefore, it is particularly important to develop more efficient, safe and economical powdery material hopper dredging technology and methods. UTILITY MODEL CONTENTS

[0005] The technical problem solved is that the existing technology cannot guarantee safety and increases labor costs when workers enter the hopper interior to manually clean the hopper interior. The utility model provides a powdery material hopper dredging device that can quickly and effectively dredge the hopper box body, prevent powdery material containing moisture from caking and blocking the hopper box body, and avoid operators entering the hopper interior, thereby reducing high-risk operations.

[0006] Technical solution: A powdery material hopper dredging device based on a hopper box body, the hopper box body is an inverted prism-shaped hopper with openings at the top and bottom, the bottom opening is a discharge port, the powdery material hopper dredging device includes a compressed air main pipeline, a rubber baffle, a dredging connection hole and a compressed air branch pipeline, the rubber baffle is arranged on at least one side of the inside of the hopper box body, and the top of the rubber baffle is connected to the hopper box body, while the bottom is not connected to the hopper box body, the dredging connection hole is arranged on the hopper box body and is covered by the bottom of the rubber baffle, the dredging connection hole is connected to the compressed air main pipeline through the compressed air branch pipeline, compressed air is arranged in the compressed air main pipeline, and the compressed air blows out from the dredging connection hole, drives the rubber baffle, and further pushes the material to dredge the hopper.

[0007] Preferably, the powder material hopper unblocking device also includes an automatic control valve and a control unit. The automatic control valve is located on the compressed air branch pipe, and the output end of the control unit is electrically connected to the input end of the automatic control valve. The control unit controls the automatic valve (3) to open and close the automatic control valve in a timed cycle. The valve's operating frequency and duration are set according to different working conditions.

[0008] Preferably, the automatic control valve is an electric valve or a pneumatic valve.

[0009] Preferably, the electric valve or pneumatic valve is a valve with an adjustable opening function.

[0010] Preferably, a hopper level gauge is installed inside the hopper box, and the output end of the hopper level gauge is electrically connected to the input end of the control unit.

[0011] Preferably, the powder material hopper unblocking device further includes bolts, and the top of the rubber baffle is connected to the hopper body by bolts.

[0012] Preferably, the hopper box is an inverted truncated quadrangular structure with openings at both the top and bottom. Each side of the hopper box is provided with a rubber baffle, and each rubber baffle corresponds to at least one unblocking connection hole.

[0013] Preferably, the rubber baffle is installed near the hopper discharge port.

[0014] Preferably, the air inlet of the main compressed air pipeline is connected to a local compressor or a compressed air network, and the compressed air is selected according to different working conditions.

[0015] Beneficial effects: (1) This invention provides a powder material hopper clearing device, which can quickly clear accumulated or blocked material inside the hopper, avoid operators from entering the hopper, and ensure operational safety.

[0016] (2) This invention provides a main compressed air pipeline on the outside of the hopper box, and a branch compressed air pipeline is led out from the main compressed air pipeline. A dredging connection hole is connected to the end of the branch compressed air pipeline on the hopper box. A rubber baffle is installed at the dredging connection hole and inside the hopper box. The top of the rubber baffle is connected to the hopper box, but the bottom is not connected. Compressed air in the main compressed air pipeline is blown out from the dredging connection hole, which agitates the rubber baffle and pushes the material to dredge the hopper.

[0017] (3) This new type is also equipped with a control unit and an automatic control valve. The existing hopper monitoring system (such as a level gauge) monitors the hopper blockage. When the blockage occurs, a signal is sent to the control unit. Or when the powdered material has a high moisture content and there is a risk of blockage, the control unit controls the opening and closing of the automatic control valve, delivers air according to the working frequency and duration, agitates the rubber baffle, and pushes the material to prevent the powdered material containing moisture from clumping and blocking the hopper box, thus reducing the risk of operation. Attached Figure Description

[0018] Fig. 1 This is a top view of the powder material hopper unblocking device of this utility model;

[0019] Fig. 2 This is a front view of the powder material hopper unblocking device of this utility model;

[0020] Fig. 3 This is a schematic diagram of the present invention.

[0021] The numbers in the diagram represent the following: 1. Main compressed air pipeline; 2. Hopper box; 3. Automatic control valve; 4. Rubber baffle; 5. Bolt; 6. Unblocking connection hole; 7. Air compression branch pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] See Figs. 1-2 This utility model provides a powder material hopper unblocking device based on a hopper box 2, which is an inverted frustum-shaped hopper with openings at both the top and bottom. The bottom opening is the discharge port. The powder material hopper unblocking device includes a compressed air main pipe 1, a rubber baffle 4, an unblocking connection hole 6, and a compressed air branch pipe 7. The rubber baffle 4 is located on at least one side inside the hopper box 2, and its top is connected to the hopper box 2, while its bottom is not connected to the hopper box 2. The unblocking connection hole 6 is located on the hopper box 2 and is blocked by the bottom of the rubber baffle 4. The unblocking connection hole 6 is connected to the compressed air main pipe 1 through the compressed air branch pipe 7. Compressed air is contained in the compressed air main pipe 1. The compressed air is blown out from the unblocking connection hole 6, agitating the rubber baffle 4, thereby pushing the material and unblocking the hopper.

[0025] The method of using the above-mentioned powder material hopper unblocking device is as follows:

[0026] The main compressed air pipe 1 is placed outside the hopper box 2. Then, the main compressed air pipe 1 is welded to one end of the compressed air branch pipe 7. The other end of the compressed air branch pipe 7 is connected (flange connection) to the unblocking connection hole 6 on the hopper box 2. At the unblocking connection hole 6, on the inside of the hopper, a rubber baffle 4 is installed. The top of the rubber baffle 4 is connected to the hopper box 2, and the bottom covers the unblocking connection hole 6 and is not connected to the hopper box 2. The compressed air in the main compressed air pipe 1 agitates the rubber baffle, thereby pushing the material and unblocking the hopper.

[0027] Example 2

[0028] Same as Example 1, except that, see [link to Example 1] Fig. 3 The powder material hopper unblocking device also includes an automatic control valve 3 and a control unit. The automatic control valve 3 is installed on the compressed air branch pipe 7 (the automatic control valve 3 is installed using a flange). The output end of the control unit is electrically connected to the input end of the automatic control valve 3. The valve's operating frequency and duration are set according to different working conditions.

[0029] During the feeding of powdered materials or when the hopper level gauge detects blockage, the control unit commands the valve 3 to start and stop automatically. Under the action of compressed air pressure, the rubber baffle moves up and down, and the material flows out of the hopper box 2 under the force of gravity and thrust, preventing the powdered materials containing moisture from clumping and blocking the hopper box, thereby reducing the risk of high-risk operations.

[0030] Furthermore, a hopper level gauge is installed inside the hopper housing 2, and the output end of the hopper level gauge is electrically connected to the input end of the control unit.

[0031] Furthermore, the automatic control valve 3 is an electric valve or a pneumatic valve. In this embodiment, the automatic control valve is an electric valve with an opening adjustment function.

[0032] The powder material hopper unblocking device also includes bolts 5, and the top of the rubber baffle 4 is connected to the hopper body 2 by bolts 5. In one preferred embodiment, the top of the rubber baffle 4 and the hopper body 2 can also be hinged.

[0033] The hopper box 2 is an inverted quadrangular frustum structure with openings at both the top and bottom. Each side of the hopper box 2 is provided with a rubber baffle 4, and each rubber baffle 4 corresponds to a dredging connection hole 6.

[0034] The rubber baffle 4 is installed near the hopper discharge port.

[0035] The air inlet of the main compressed air pipeline is connected to a local compressor (or compressed air network), and the compressed air is selected according to different working conditions.

[0036] Example 3

[0037] Similar to Example 2, the difference is that in this example, the automatic control valve is a time relay timed cyclic control solenoid valve, and the solenoid valve is a DN50 cast iron flange solenoid valve.

[0038] The hopper level gauge is a rotary paddle level switch, located inside the hopper housing 2, used to transmit a blockage signal to the control unit.

[0039] The hopper has an upper side length of 1500mm and a lower side length of 1100mm.

[0040] The feed material is a powder with a particle size of less than 5mm.

[0041] The pressure of compressed air in the main compressed air pipeline is greater than 0.4 MPa, the inner diameter of the unblocking connection hole 6 is 42 mm, the thickness of the rubber baffle 4 is 12 mm, and the blowing angle of the compressed air is 60-70°.

[0042] In this embodiment, under the condition of conveying powdery materials, the valve working frequency and duration are controlled once every 30 minutes and 3 seconds respectively, and the valve cycle interval is 30 seconds, which can effectively push the material.

[0043] When the hopper level gauge sends a blockage signal to the control unit, or when the powdered material has a high moisture content and poses a risk of blockage, the control unit controls the opening and closing of the automatic control valve, delivers air according to the working frequency and duration, agitates the rubber baffle, and pushes the material to prevent the powdered material containing moisture from clumping and blocking the hopper box, thus reducing operational risks.

Claims

1. A device for clearing a powdered material hopper, based on a hopper housing (2), wherein the hopper housing (2) is an inverted frustum-shaped hopper with openings at both the top and bottom, and the bottom opening is a discharge port, characterized in that, The powder material hopper unblocking device includes a compressed air main pipe (1), a rubber baffle (4), an unblocking connection hole (6), and a compressed air branch pipe (7). The rubber baffle (4) is located on at least one side of the hopper box (2), and the top of the rubber baffle (4) is connected to the hopper box (2), while the bottom is not connected to the hopper box (2). The unblocking connection hole (6) is located on the hopper box (2) and is blocked by the bottom of the rubber baffle (4). The unblocking connection hole (6) is connected to the compressed air main pipe (1) through the compressed air branch pipe (7). Compressed air is provided in the compressed air main pipe (1).

2. The powder material hopper unblocking device according to claim 1, characterized in that, The powder material hopper clearing device also includes an automatic control valve (3) and a control unit. The automatic control valve (3) is located on the compressed air branch pipe (7). The output end of the control unit is electrically connected to the input end of the automatic control valve (3). The control unit controls the automatic control valve (3) to open and close the automatic control valve in a timed cycle.

3. The powder material hopper unblocking device according to claim 2, characterized in that, The automatic control valve (3) is an electric valve or a pneumatic valve.

4. The powder material hopper unblocking device according to claim 3, characterized in that, The electric or pneumatic valve is a valve with an adjustable opening degree.

5. The powder material hopper unblocking device according to claim 2, characterized in that, The hopper box (2) is equipped with a hopper level gauge, and the output end of the hopper level gauge is electrically connected to the input end of the control unit.

6. The powder material hopper unblocking device according to claim 1, characterized in that, The powder material hopper unblocking device also includes bolts (5), and the top of the rubber baffle (4) is connected to the hopper box (2) by bolts (5).

7. The powder material hopper unblocking device according to claim 1, characterized in that, The hopper box (2) is an inverted quadrangular frustum structure with openings at both the top and bottom. Each side of the hopper box (2) is provided with a rubber baffle (4), and each rubber baffle (4) corresponds to at least one unblocking connection hole (6).

8. The powder material hopper unblocking device according to claim 1, characterized in that, The rubber baffle (4) is installed near the hopper discharge port.

9. A powder material hopper unblocking device according to claim 1, characterized in that, The air inlet of the main compressed air pipeline is connected to a local compressor or a compressed air pipeline network.

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