Vacuum exhaust device

Abstract

The invention discloses a vacuum exhaust device and relates to the technical field of plastic recovery equipment. The device comprises a base, a vacuum tank, a flange cover plate, a vacuum pump, an air pipe and a water replenishing port, a vacuum tank and a vacuum pump are fixed on the base, a flange cover plate is fixed at the upper end of the vacuum tank through screws, a water replenishing port is connected to the flange cover plate, an outlet of the vacuum pump is connected with the vacuum tank through an air pipe, the air pipe is inserted into the vacuum tank, and the end part of the air pipe is positioned below the water surface in the vacuum tank. The vacuum exhaust device is compact in structure and high in suction force, smoke can be filtered and precipitated in the vacuum tank, smoke generated by material melting can be effectively removed, the vacuum tank is detachable, filtered dust can be manually removed, the vacuum pump cannot be blocked after the smoke is exhausted, and the vacuum exhaust device is convenient to use. Therefore, the service life of the vacuum pump is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling equipment, and in particular to a vacuum exhaust device. Background Art

[0002] Plastics, as a byproduct of petroleum refining, are non-renewable resources. As the consumption of plastics increases and the resulting environmental pollution becomes more serious, the demand for the recycling of waste plastics is growing, and accordingly, the demand for plastic recycling machinery is also growing. As the terminal of plastic recycling, the granulation part can produce qualified plastic particles that can be used to make new products again. The various indicators of the particles should meet the standards for recycling. The exhaust of smoke in the molten state of plastic directly affects the quality of the finished plastic particles. The existing extrusion granulation equipment cannot handle the waste gas generated by the molten plastic, resulting in low quality of the final product. Therefore, those skilled in the art provide a vacuum exhaust device to solve the problems raised in the above background technology. Summary of the Invention

[0003] The object of the present invention is to provide a vacuum exhaust device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it includes a base, a vacuum tank, a flange cover, a vacuum pump, an air pipe and a water supply port; the vacuum tank and the vacuum pump are fixed on the base, the upper end of the vacuum tank is fixed with a flange cover by screws, the flange cover is connected to the water supply port, the outlet of the vacuum pump is connected to the vacuum tank through an air pipe, the air pipe is inserted in the vacuum tank, and its end is located below the water surface in the vacuum tank.

[0005] Furthermore, the vacuum pump is a water ring vacuum pump.

[0006] Furthermore, a first valve is installed at the water supply port.

[0007] Furthermore, a drain outlet is provided at the bottom of the vacuum tank, and a second valve is installed at the drain outlet.

[0008] Furthermore, a visual window is provided on the side wall of the vacuum tank.

[0009] Furthermore, the trachea is a steel pipe.

[0010] After adopting the above structure, the beneficial effects produced by the present invention are as follows: the vacuum exhaust device described in the present invention has a compact structure and strong suction, the flue gas can be filtered and deposited in the vacuum tank, and the flue gas generated by the melting of the material can be effectively removed. The vacuum tank is detachable and the filtered dust can be removed manually, and after the flue gas is discharged, it will not cause blockage to the vacuum pump, thereby not affecting the service life of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present invention; Figure 2 yes Figure 1 Left view of; Figure 3 yes Figure 1 A top view of Figure 4 It is a structural diagram of the vacuum tank of the present invention.

[0012] Description of reference numerals: Base 1, vacuum tank 2, flange cover 3, vacuum pump 4, air pipe 5, water supply port 6, first valve 7, drain port 8, second valve 9, viewing window 10. DETAILED DESCRIPTION

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] See Figure 1 —— Figure 4 As shown, this specific embodiment adopts the following technical scheme: it includes a base 1, a vacuum tank 2, a flange cover 3, a vacuum pump 4, an air pipe 5 and a water supply port 6; the vacuum tank 2 and the water ring vacuum pump 4 are fixed on the base 1, and the upper end of the vacuum tank 2 is fixed with a flange cover 3 by screws. The top and bottom of the vacuum tank 2 are detachable, which is convenient for manual removal of the filtered dust. The flange cover 3 is connected to the water supply port 6, and a first valve 7 is installed at the water supply port 6. The outlet of the vacuum pump 4 is connected to the vacuum tank 2 through the air pipe 5, and the air pipe 5 is inserted in the vacuum tank 2. The air pipe 5 is a steel pipe, and its end is located below the water surface in the vacuum tank 2. The water supply port 6 is connected to the water supply pipe, and the side wall of the vacuum tank 2 is provided with a visual window 10. The visual window 10 is used to observe the water level in the vacuum tank 2. When the water level in the vacuum tank 2 is lower than the bottom of the air pipe 5, water is replenished in time by opening the first valve 7 at the water supply port 6.

[0015] A drain port 8 is provided at the bottom of the vacuum tank 2, and a second valve 9 is installed at the drain port 8. The drain port 8 is connected to the drain pipe. When the sediment dust in the vacuum tank 2 needs to be cleaned, the second valve 9 is first opened to drain the water in the vacuum tank 2, and then the vacuum tank 2 is manually disassembled for cleaning.

[0016] The working principle of the present invention is: the exhaust device of the present invention is installed on the extruder through the base 1, and the air inlet of the vacuum pump 4 is located near the granulation outlet of the extruder. Before starting the machine, appropriate water needs to be poured into the vacuum tank 2, and the water surface just covers the bottom of the air pipe 5 in the vacuum tank. The water ring vacuum pump needs to be continuously replenished with water when it is running; when vacuum exhaust is performed, the vacuum pump 4 is turned on. At this time, the smoke and dust gas generated in the extruder is continuously drawn into the vacuum tank 2 due to the negative pressure generated by the operation of the vacuum pump 4. Since the air pipe 5 is below the water surface, the smoke and dust are blocked and precipitated by water, and the gas floats up and is sucked out by the vacuum pump, and the smoke and dust remain in the vacuum tank. The equipment is provided with a water replenishment port and a window. The window 10 can be used to observe that when the liquid level is too low, water replenishment is required in time.

[0017] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum exhaust device, characterized in that: It includes a base, a vacuum tank, a flange cover, a vacuum pump, an air pipe and a water supply port; the vacuum tank and the vacuum pump are fixed on the base, the upper end of the vacuum tank is fixed with a flange cover by screws, the flange cover is connected to the water supply port, the outlet of the vacuum pump is connected to the vacuum tank through an air pipe, the air pipe is inserted in the vacuum tank, and the end of the air pipe is located below the water surface in the vacuum tank.

2. A vacuum exhaust device according to claim 1, characterized in that: The vacuum pump is a water ring vacuum pump.

3. The vacuum exhaust device according to claim 1, characterized in that: A first valve is installed at the water replenishment port.

4. The vacuum exhaust device according to claim 1, characterized in that: The bottom of the vacuum tank is provided with a drain outlet, and a second valve is installed at the drain outlet.

5. The vacuum exhaust device according to claim 1, characterized in that: The side wall of the vacuum tank is provided with a viewing window.

6. The vacuum exhaust device according to claim 1, characterized in that: The trachea is made of a steel pipe.

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