A method for blowing a bag using waste gas

Abstract

The present invention relates to the technical field of graphite production, and in particular to a method for blowing a bag using waste gas. It comprises a storage bin, a vacuum pump and an exhaust pipe. The vacuum pump forms a negative air pressure in the storage bin to allow materials to enter the storage bin. The exhaust pipe is connected to the exhaust port of the vacuum pump. A three-way adapter is provided on the exhaust pipe. A first pipeline and a second pipeline are respectively provided on the three-way adapter. A first one-way valve is provided on the first pipeline, and a second one-way valve is provided on the second pipeline. When the vacuum pump performs vacuum extraction, the first one-way valve is closed, the second one-way valve is opened, and the gas discharged by the vacuum pump is discharged along the second pipeline; the air outlet of the second pipeline is aligned with the air inlet of the ton bag to blow the bag. It introduces the waste gas generated by the vacuum pump into the ton bag, so that the ton bag is fully opened. The waste gas generated by the vacuum pump is dry and clean, without the risk of introducing foreign matter, and will not introduce water vapor into the ton bag, thereby avoiding the situation of graphite agglomeration.

Description

Technical Field

[0001] The invention relates to the technical field of graphite production, and in particular to a method for blowing a bag using waste gas. Background Art

[0002] Graphite is an important non-metallic mineral resource. It has many excellent properties such as corrosion resistance, radiation protection, thermal conductivity, electrical conductivity, high temperature resistance, self-lubrication, etc. It is widely used in many fields and is known as "black gold". Graphite is used in many industries, such as pencils for daily use, lubricants in the machinery industry, electrodes, brushes, carbon rods in the electrical industry, etc. At the same time, graphite can also be used to prepare graphene. Graphite will drive technological revolutions in new energy, new materials and other fields. The purity of graphite determines its use value. The higher the purity, the greater its use value.

[0003] The last step in graphite production is to use ton bags to pack the graphite. Before packing the ton bags, the ton bags need to be blown. At present, the commonly used blowing method is to use high-pressure gas generated by an air compressor to blow the bags. However, this blowing method easily introduces water vapor into the ton bags, causing graphite to clump in the ton bags. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for blowing bags using waste gas, thereby solving the technical problem that water vapor is easily introduced into the ton bag and graphite agglomerates due to the original blowing of bags using air compressors.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for blowing bags using exhaust gas, comprising a storage bin, a vacuum pump and an exhaust pipe; the vacuum pump is used to form a negative pressure in the storage bin, so that the material enters the storage bin;

[0006] The exhaust pipe is connected to the exhaust port of the vacuum pump, and a three-way adapter is provided at the air outlet end of the exhaust pipe. The two air outlet ends of the three-way adapter are respectively provided with a first pipeline and a second pipeline; a first one-way valve is provided on the first pipeline, and a second one-way valve is provided on the second pipeline.

[0007] A method for blowing a bag using waste gas comprises the following steps:

[0008] a. When the vacuum pump is performing vacuum extraction, the first one-way valve is closed and the second one-way valve is opened, so that the gas exhausted by the vacuum pump is discharged along the second pipeline;

[0009] b. Align the air outlet of the second pipe with the air inlet of the ton bag, so that the gas exhausted from the second pipe enters the ton bag, and the ton bag gradually expands until it is fully opened.

[0010] The beneficial effect of the present invention is that compared with the prior art, the present invention provides a method for blowing bags using waste gas, which introduces the waste gas generated by the vacuum pump during the vacuum feeding operation into the ton bag, so that the ton bag is fully opened. During the vacuum feeding process, the waste gas generated by the vacuum pump is dry and clean, without the risk of introducing foreign matter, and will not introduce water vapor into the ton bag, thereby avoiding the situation of graphite agglomeration. In addition, there is no need to use an air compressor for blowing bags, which saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a device for blowing a bag using waste gas according to a specific embodiment of the present invention;

[0012] Figure 2 It is a schematic structural diagram of another direction of a device for blowing a bag using exhaust gas according to a specific embodiment of the present invention.

[0013] Description of labels:

[0014] 1. Storage silo; 2. Vacuum pump; 3. Exhaust pipe; 4. Three-way adapter; 5. First pipeline;

[0015] 6. Second pipeline; 7. First one-way valve; 8. Second one-way valve; 9. Transfer pipe; 10. Flow meter. DETAILED DESCRIPTION

[0016] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0017] Please refer to Figure 1-Figure 2 As shown, the technical solution adopted by the present invention is: a device using waste gas to blow a bag, comprising a storage bin 1, a vacuum pump 2 and an exhaust pipe 3; the vacuum pump 2 is used to form the air pressure in the storage bin 1 into a negative air pressure, so that the material enters the storage bin 1;

[0018] The exhaust pipe 3 is connected to the exhaust port of the vacuum pump 2, and a three-way adapter 4 is provided at the gas outlet end of the exhaust pipe 3. The two gas outlet ends of the three-way adapter 4 are respectively provided with a first pipeline 5 and a second pipeline 6; the first pipeline 5 is provided with a first one-way valve 7, and the second pipeline 6 is provided with a second one-way valve 8.

[0019] A method for blowing a bag using waste gas comprises the following steps:

[0020] a. When the vacuum pump 2 performs vacuum extraction, the first one-way valve 7 is closed and the second one-way valve 8 is opened, so that the gas exhausted by the vacuum pump is discharged along the second pipeline 6;

[0021] b. Align the air outlet of the second pipe 6 with the air inlet of the ton bag, so that the gas exhausted from the second pipe 6 enters the ton bag, and the ton bag gradually expands until it is fully opened.

[0022] From the above description, it can be seen that the beneficial effect of the present invention is that it introduces the exhaust gas generated by the vacuum pump 2 during the vacuum feeding operation into the ton bag, so that the ton bag is fully opened. During the vacuum feeding process, the exhaust gas generated by the vacuum pump 2 is dry and clean, without the risk of introducing foreign matter, and will not introduce water vapor into the ton bag, thereby avoiding the situation of graphite agglomeration. In addition, there is no need to use an air compressor for blowing the bag, which saves production costs.

[0023] More preferably, the exhaust end of the second one-way valve 8 is provided with a transfer tube 9, and the transfer tube 9 is a U-shaped tube with its opening facing downward.

[0024] It can be seen from the above description that, through the above arrangement, it is convenient for the operator to align the air inlet of the ton bag with the transfer tube 9, thereby facilitating the operator to perform the blowing operation on the ton bag.

[0025] More preferably, the transfer tube 9 is a retractable hose.

[0026] As can be seen from the above description, since the transfer tube 9 is retractable, the transfer tube 9 can be extended to a certain length. The operator can directly perform the blowing operation on another ton bag without removing the blown ton bag, which is convenient and quick to operate.

[0027] More preferably, a flow meter 10 is further provided on the second one-way valve 8 ; the flow meter 10 is used to measure the volume of gas passing through the second one-way valve 8 .

[0028] From the above description, it can be seen that the operator can control the volume of gas entering the ton bag by reading the index on the flow meter to ensure that the ton bag can be fully opened; avoid the operator filling the ton bag with excessive gas, causing the ton bag to crack.

[0029] Embodiment 1

[0030] The invention is applied in the packaging production of graphite.

[0031] Please refer to Figure 1-Figure 2 As shown, the technical solution adopted by the present invention is: a device using waste gas to blow a bag, comprising a storage bin 1, a vacuum pump 2 and an exhaust pipe 3; the vacuum pump 2 is used to form the air pressure in the storage bin 1 into a negative air pressure, so that the material enters the storage bin 1;

[0032] The exhaust pipe 3 is connected to the exhaust port of the vacuum pump 2, and a three-way adapter 4 is provided at the gas outlet end of the exhaust pipe 3, and a first pipeline 5 and a second pipeline 6 are respectively provided at the two gas outlet ends of the three-way adapter 4; a first one-way valve 7 is provided on the first pipeline 5, and a second one-way valve 8 is provided on the second pipeline 6;

[0033] The exhaust end of the second one-way valve 8 is provided with a transfer tube 9, which is a U-shaped tube with an opening facing downward; the transfer tube 9 is a retractable hose; the second one-way valve 8 is also provided with a flow meter 10; the flow meter 10 is used to measure the volume of gas passing through the second one-way valve 8;

[0034] A method for blowing a bag using waste gas comprises the following steps:

[0035] a. When the vacuum pump 2 performs vacuum extraction, the first one-way valve 7 is closed and the second one-way valve 8 is opened, so that the gas exhausted by the vacuum pump is discharged along the second pipeline 6;

[0036] b. Align the exhaust port of the transfer tube 9 with the air inlet of the ton bag, so that the gas exhausted from the second pipe 6 enters the ton bag, and the ton bag gradually expands until it is fully opened; at the same time, observe the index of the flow meter 10 to read the volume of gas entering the ton bag.

[0037] In summary, the beneficial effects of the present invention are: it introduces the waste gas generated by the vacuum pump during the vacuum feeding operation into the ton bag, so that the ton bag is fully opened. During the vacuum feeding process, the waste gas generated by the vacuum pump is dry and clean, without the risk of introducing foreign matter, and will not introduce water vapor into the ton bag, thereby avoiding the agglomeration of graphite; there is no need to use an air compressor for blowing the bag, thus saving production costs.

[0038] In addition, a flow meter is provided at the exhaust end of the second one-way valve so that the operator can clearly know the volume of gas entering the ton bag; a retractable transfer tube is provided at the exhaust end of the second one-way valve so that the operator can directly blow another ton bag without removing the blown ton bag, which is convenient and quick to operate.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for blowing a bag using waste gas, comprising a storage bin, a vacuum pump and an exhaust pipe; the vacuum pump is used to form a negative pressure in the storage bin, so that the material enters the storage bin; the exhaust pipe is connected to the exhaust port of the vacuum pump, and a three-way adapter is provided at the air outlet end of the exhaust pipe, and a first pipeline and a second pipeline are respectively provided at the two air outlet ends of the three-way adapter; a first one-way valve is provided on the first pipeline, and a second one-way valve is provided on the second pipeline; a transfer pipe is provided at the exhaust end of the second one-way valve, and the transfer pipe is a U-shaped pipe with an opening facing downward; characterized in that The following steps are involved: a. When the vacuum pump is performing vacuum extraction, the first one-way valve is closed and the second one-way valve is opened, so that the gas exhausted by the vacuum pump is discharged along the second pipeline; b. Align the air inlet of the ton bag with the air outlet of the second pipe, so that the gas exhausted from the second pipe enters the ton bag, and the ton bag gradually expands until it is fully opened.

2. A method for blowing a bag using waste gas according to claim 1, characterized in that: The transfer tube is a retractable hose.

3. The method of using waste gas to blow a bag according to claim 1, characterized in that: The second one-way valve is also provided with a flow meter; the flow meter is used to measure the volume of gas passing through the second one-way valve.

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