An automatic breathing device for a glass powder mixer

Abstract

The present invention provides an automatic control breathing device for a glass powder mixer, which comprises a mixer (1), an aggregate chute (2) is arranged on the mixer (1), a corresponding plug valve (3) is arranged on the aggregate chute (2), and it is characterized in that: a sealing plate (4) is arranged on the chute (3), a cavity (5) is formed by the plug valve (3) and the sealing plate (4), an air pipe (6) and an ash pipe (7) are communicated with the cavity (5), one end of the ash pipe (7) is communicated with an ash accumulation box (8), one end of the air pipe (6) is communicated with an air source, and a corresponding control valve (6a) is arranged on the air pipe (6). The structure of the present invention is simple, easy to use, convenient for direct transformation on existing equipment, can effectively prevent powder leakage, and further protects the occupational health and safety of workers.

Description

Technical Field:

[0002] The present invention relates to the field of material mixing on a glass production line, and specifically to an automatic control breathing device for a glass powder mixer. Background Art:

[0004] A mixer is an important and indispensable device in the weighing, mixing, and feeding system of a glass production line. According to the requirements of the product formula, various powders are accurately weighed by an electronic scale according to the ratio, and then enter the mixer through an aggregate chute for mixing. The qualified batch mixture after mixing is sent to the kiln head bin for storage and standby through a batch mixture belt conveyor.

[0005] For the production of high-aluminum glass, since the proportion of aluminum content needs to be accurately calculated, various powders are accurately weighed and preferably completely sent to the kiln head bin with zero loss. However, in actual production, when various powders enter the mixer through the aggregate chute for mixing, there is an automatic flap valve connecting the two. When a batch of materials is weighed according to the weight ratio, the valve is automatically closed to cut off the continuous entry of powders into the mixer.

[0006] When batching and mixing are required, the valve is automatically opened again. Due to the continuous opening and closing wear of the automatic flap valve and the clearance requirements for the opening and closing of the valve plate itself, and when the powders enter the mixer instantaneously, the internal air in the mixer is squeezed, resulting in the powders leaking out through the gaps along with the squeezed air. As a result, there will be continuous leakage of materials at the position of this flap valve. After a batch of materials is mixed, a lot of powders will be lost, seriously affecting the proportion of the accurately weighed powders and the quality of the glass. More seriously, the pollution caused by the leakage of powders is very large, floating in the air, causing dust damage to the human body and polluting the environment. Summary of the Invention:

[0008] The present invention is to overcome the deficiencies in the prior art and provide an automatic control breathing device for a glass powder mixer.

[0009] The present application provides the following technical solutions:

[0010] An automatic control breathing device for a glass powder mixer, which includes a mixer, an aggregate chute is provided on the mixer, and a corresponding flap valve is provided on the aggregate chute. It is characterized in that: a sealing plate is provided on the flap valve, a cavity is formed by the flap valve and the sealing plate, at least one gas pipe and one ash pipe are communicated with the cavity, one end of the ash pipe is communicated with an ash box through a hose, and one end of the gas pipe is communicated with a gas source through a control valve.

[0011] Based on the above technical solutions, the following further technical solutions may be available:

[0012] The described dust accumulation box includes a box body, on which a hose inlet and an air outlet pipe are provided. A filter cotton is provided at the air outlet end of the air outlet pipe (8c). A dust cleaning door is also provided on the box body, and a group of supporting legs are evenly distributed at the bottom of the dust accumulation box.

[0013] Two air pipes are communicated with the described cavity, and both of the two air pipes are communicated with a control valve. The control valve is a three-way valve, and the control valve is communicated with the air source of compressed air through an air inlet pipe.

[0014] Advantages of the invention:

[0015] The structure of the present invention is simple and convenient to use, facilitating direct modification on existing equipment, with low modification cost. It can effectively prevent powder leakage, control the powder ratio, and more importantly, protect the occupational health and safety of workers. Description of the drawings:

[0017] Figure 1 It is a schematic structural diagram of the present invention. Specific implementation manners:

[0019] As Figure 1 shown, an automatic control breathing device for a glass powder mixer includes a mixer 1, and a square tube-shaped aggregate chute 2 vertically distributed on the mixer 1.

[0020] An insertion plate valve 3 is arranged on the aggregate chute 2. The insertion plate valve 3 includes a chute 3d provided on one side of the aggregate chute 2. The top ends of the two side walls of the chute 3d are welded and fixed to the outer wall of the aggregate chute 2. A valve plate 3a with one end inserted into the aggregate chute 2 is arranged in the chute 3d, and the valve plate 3a is horizontally distributed.

[0021] A cylinder 3b is fixedly connected to one side of the bottom of the chute 3d. The output shaft 3c of the cylinder 3b is connected and fixed to the thickness end face of one end of the valve plate 3a. The valve plate 3a is driven by the cylinder 3b to move horizontally, so that the valve plate 3a can be inserted into or withdrawn from the aggregate chute 2, thus forming a valve body of the insertion plate type.

[0022] A sealing plate 4 is distributed at the upper and lower ends of the chute 3d. A group of locking bolts 4a are arranged through the two sealing plates 4 to fix the sealing plates 4 at the upper and lower ends of the chute 3d, thereby forming a sealed cavity 5 in the chute 3d.

[0023] Two air pipes 6 are communicated with the cavity 5. The inlets of the two air pipes 6 are respectively located at the left and right ends of the sealing plate 4 at the upper end of the cavity 5. This can make the air flow in the cavity 5 more balanced when external gas enters the cavity 5 through the two air pipes 6. The two air pipes 6 are simultaneously communicated with a control valve 6a. The control valve 6a is a differential pressure solenoid valve with a three-way structure, and the control valve 6a is communicated with the air source (not shown in the figure) of compressed air through an air inlet pipe 6c.

[0024] A dust pipe 7 is connected to the sealing plate 4 at the lower end of the cavity 5 between the inlets of the two air pipes 6. The dust pipe 7 is a conical pipe with a larger diameter at the upper end and a smaller diameter at the lower end. One end of the dust pipe 7 is connected to a dust collection box 8 through a flexible pipe 7a. The dust collection box 8 includes a box body 8a with a cuboid structure. A flexible pipe 7a inlet 8b and an air outlet pipe 8c are provided at the top of the box body 8a. A filter cotton 8d is provided at the air outlet end of the air outlet pipe 8c. The filter cotton 8d is integrally wrapped around the air outlet end of the air outlet pipe 8c, and then the edges of the filter cotton 8d are tied to the end of the air outlet pipe 8c with a tie. A dust cleaning door 8e is provided at the center of the bottom of the box body 8a, and a support leg 8f is welded at each of the four corners of the bottom of the dust collection box 8.

[0025] Working process:

[0026] When the mixer starts batching, the valve body of the plug type is opened (the valve plate 3a is mostly pulled out of the aggregate chute 2 to make the aggregate chute 2 unobstructed), and different powder materials accurately weighed by each electronic scale enter the mixer 1 directly through the aggregate chute 2. The powder materials in the mixer 1 will leak out to any place with gaps due to air extrusion. At this time, the control valve 6a is opened to allow compressed air to enter the cavity 5, forming a positive air pressure seal at the gap between the valve plate 3a and the mixer, so as to prevent the powder materials entering the mixer from extruding air and leaking out.

[0027] When the batching of the mixer 1 is completed, the valve body of the plug type is closed (the valve plate 3a is mostly inserted into the aggregate chute 2 to cut off the aggregate chute 2), and the differential pressure solenoid valve 3 senses and closes the compressed air. At the same time, a small amount of powder materials that enter the cavity 5 along with the air during batching, under the action of the positive pressure gas and the breathing port 5 (with filter cotton), fall into the dust collection box 7 along the dust pipe 7 through the flexible pipe 7a. At the same time, the positive pressure gas enters the atmosphere through the filter cotton of the breathing port 5, and the dust is left in the dust collection box 7. When the dust needs to be cleaned after long-term accumulation, the dust cleaning door 8e at the bottom of the dust collection box 7 is opened for cleaning. After the accumulated dust is cleaned, the dust cleaning door 8e is closed, and the bolt on the dust cleaning door 8e is inserted back.

[0028] The arrow in the figure indicates the moving direction of the powder material.

Claims

1. An automatic breathing device for a glass powder mixer, which comprises a mixer (1), an aggregate chute (2) is arranged on the mixer (1), and a flap valve (3) which is correspondingly matched is arranged on the aggregate chute (2), and is characterized in that: A sealing plate (4) is provided on the plug valve (3), and a cavity (5) is formed by the plug valve (3) and the sealing plate (4). At least one air pipe (6) and one ash pipe (7) are communicated with the cavity (5). One end of the ash pipe (7) is communicated with the ash accumulation box (8) through a hose (7a), and one end of the air pipe (6) is communicated with an air source through a control valve (6a); the ash accumulation box (8) includes a box body (8a), and a hose (7a) inlet (8b) and an air outlet pipe (8c) are provided on the box body (8a). A filter cotton (8d) is provided at the air outlet end of the air outlet pipe (8c). A dust cleaning door (8e) is further provided on the box body (8a), and a group of support legs (8f) are uniformly distributed at the bottom of the ash accumulation box (8); two air pipes (6) are communicated with the cavity (5), and the two air pipes (6) are both communicated with the control valve (6a). The control valve (6a) is a three-way valve, and the control valve (6a) is communicated with the air source of compressed air through an air inlet pipe (6c).

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