Device and system for subpackaging acidic corrosive liquid chemical substances

Abstract

The utility model relates to a device and a system for dispensing acidic corrosive liquid chemicals. The device comprises a support; a weighing device; the sealed container is provided with a feeding hole and a vacuum extraction hole; the feeding hole is connected with a feeding hose; one end, far away from the feeding hole, of the feeding hose is fixed on the bracket; a first feeding valve is arranged between the feeding hole and the feeding hose; the feeding hose is connected with a storage tank filled with acidic corrosive liquid chemical substances through a feeding pipeline; the vacuum air exhaust end of the water ring vacuum pump is communicated with the vacuum air exhaust opening through an air exhaust pipeline; the end, close to the vacuum extraction opening, of the extraction pipeline is provided with an extraction hose, the end, away from the vacuum extraction opening, of the extraction hose is fixed to the support, and the extraction pipeline is provided with a first extraction valve. According to the device and the system provided by the invention, the acidic corrosion industrial chemical substances can be pressed into the sealed container to finish subpackaging.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a device and system for packaging acidic corrosive liquid chemicals. Background Art

[0002] In the chemical industry, acidic corrosive liquids are often used in pharmaceuticals, dyes, fragrances, materials, metallurgy and other fields. However, for the convenience of transportation, acidic corrosive liquids are usually stored and transported in large packages. However, this specification is not suitable for use. Therefore, large packages of acidic corrosive liquids need to be repackaged. The process of repackaging large packages of chemical materials (such as bromine) containing acidic corrosive liquids into small packages must avoid corrosion and harm to the human body and the environment.

[0003] Therefore, there is a need in the art to provide a device for dispensing acidic corrosive liquid chemicals. Utility Model Content

[0004] One of the purposes of the embodiments of the present application is to provide a device for dispensing acidic corrosive liquid chemicals, comprising:

[0005] Bracket;

[0006] Weighing device;

[0007] A sealed container capable of being weighed by a weighing device, the sealed container being provided with a feed port and a vacuum exhaust port; the feed port being connected to a feed hose; the feed hose being fixed to a bracket at one end away from the feed port; a first feed valve being provided between the feed port and the feed hose; the feed hose being connected to a storage tank containing an acidic corrosive liquid chemical substance via a feed pipeline;

[0008] A water ring vacuum pump, wherein the vacuum exhaust end of the water ring vacuum pump is connected to the vacuum exhaust port through an exhaust pipe; the end of the exhaust pipe close to the vacuum exhaust port is set as an exhaust hose, and the end of the exhaust hose away from the vacuum exhaust port is fixed on the bracket, and the exhaust pipe is provided with a first exhaust valve.

[0009] In an implementable solution, a second feed valve is provided between the feed hose and the storage tank containing the acidic corrosive liquid chemical substance, and a first air blowing pipe is provided between the first feed valve and the second feed valve, wherein the first air blowing pipe is provided with an air blowing valve.

[0010] In another feasible solution, the sealed container is provided with a second air blowing pipe, and the second air blowing pipe is provided with an air blowing valve.

[0011] In one feasible solution, the weighing device is a weight weighing device and / or a volume weighing device.

[0012] In one feasible solution, the storage tank containing the acidic corrosive liquid chemical substance is provided with an emptying port and / or a material filling port;

[0013] The feed port of the feed pipeline extends into the bottom of the storage tank filled with acidic corrosive liquid chemicals.

[0014] In an implementable solution, the gas outlet of the water ring vacuum pump is connected to an alkaline solution reaction tank for neutralizing the gas outlet of the water ring vacuum pump.

[0015] In one feasible solution, the sealed container is provided with a pressure gauge.

[0016] In one feasible solution, the feed hose is connected to the feed port via a hard feed pipe, and the exhaust hose is connected to the vacuum exhaust port via a hard exhaust pipe;

[0017] The discharge port of the rigid feed pipe is lower than the air inlet of the rigid exhaust pipe.

[0018] The second object of the present application is to provide a system for packaging acidic corrosive liquid chemicals, including the device described in the first object;

[0019] A storage tank filled with acidic corrosive liquid chemicals connected to a feed hose of the device described in one of the objectives.

[0020] The acidic corrosive liquid chemical mentioned in the present application may be typically, but not limited to, bromine.

[0021] In an implementable solution, the system further includes an air source connected to the first air blowing pipe.

[0022] Compared with the prior art, the technical solution of this application has at least the following beneficial effects:

[0023] The device and system for packaging acidic corrosive liquid chemicals provided herein utilize a weighing device (particularly a weighting device) in conjunction with a water ring vacuum pump to create negative pressure within a sealed container, forcing the acidic corrosive chemicals into the sealed container for packaging. Under negative pressure, the acidic corrosive chemicals are easily vacuumed out of the sealed container, but are neutralized after passing through an alkaline storage tank, reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The device for dispensing acidic corrosive liquid chemicals provided in Example 1;

[0025] Figure 2 The device for dispensing acidic corrosive liquid chemicals provided in Example 2;

[0026] Figure 3The device provided in Example 3 for packaging acidic corrosive liquid chemicals. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further explained below in conjunction with specific implementation methods. However, it should be noted that the specific implementation methods are only a concrete implementation and explanation of the essence of the technical solution of the present application and should not be understood as a limitation on the scope of protection of the present application.

[0028] The reagents and instruments used in the examples can all be purchased from commercial products, and the detection methods are conventional methods well known in the art.

[0029] like Figure 1 ( Figure 1 As shown in the device for dispensing acidic corrosive liquid chemicals provided in Example 1, Example 1 provides a device for dispensing acidic corrosive liquid chemicals, comprising:

[0030] Bracket 100;

[0031] Weighing device 200;

[0032] A sealed container 300 capable of being weighed 200 by a weighing device is provided with a feed port 301 and a vacuum exhaust port 302; the feed port 301 is connected to a feed hose 303; the end of the feed hose 303 away from the feed port 301 is fixed to the bracket 100; a first feed valve 304 is provided between the feed port 301 and the feed hose 303; the feed hose 303 is connected to a storage tank 600 containing acidic corrosive liquid chemicals via a feed pipe 305; the storage tank 600 containing acidic corrosive liquid chemicals is provided with an emptying port 601 (which may also be a material filling port 601); the feed port of the feed pipe 305 extends into the bottom of the storage tank 600 containing acidic corrosive liquid chemicals; the sealed container 300 is provided with a pressure gauge 307. The feed hose 303 and the feed port 301 are connected via a hard feed pipe 310;

[0033] A water ring vacuum pump 400, wherein the vacuum exhaust end 401 of the water ring vacuum pump 400 is connected to the vacuum exhaust port 302 via an exhaust pipe 402; an end of the exhaust pipe 402 close to the vacuum exhaust port 302 is provided with an exhaust hose 306, and an end of the exhaust hose 306 away from the vacuum exhaust port 302 is fixed to the bracket 100; the exhaust pipe 402 is provided with a first exhaust valve 403; the exhaust hose 306 and the vacuum exhaust port 302 are connected via a hard exhaust pipe 311;

[0034] The discharge port of the rigid feed pipe 310 is lower than the air inlet of the rigid exhaust pipe 311 .

[0035] The alkali solution storage tank 500, the air outlet 404 of the water ring vacuum pump 400 is deep below the liquid level of the alkali solution storage tank.

[0036] The working process of the device for dispensing acidic corrosive liquid chemicals provided in Example 1 is exemplified as follows:

[0037] The initial state of the device is that the first feed valve 304 is closed, the water ring vacuum pump 400 is closed, and the first air extraction valve 403 is closed; then the water ring vacuum pump 400 is turned on, the first air extraction valve 403 is opened, and the first feed valve 304 is opened. At this time, the interior of the sealed container 300 is under negative pressure, the emptying port 601 of the storage tank 600 containing acidic corrosive liquid chemicals is opened, and the acidic corrosive liquid chemicals are pressed into the sealed container from the storage tank 600 containing acidic corrosive liquid chemicals. When the weighing result of the weighing device 200 enters the predetermined range, the first feed valve 304 is closed, the first air extraction valve 403 is closed, and the water ring vacuum pump 400 is closed.

[0038] It should be noted that since the sealed container 300 is connected to the storage tank 600 containing acidic corrosive liquid chemicals and the water ring vacuum pump 400 through a pipeline, the weighing device 200 usually does not present a constant value. However, since its channels are all provided with hoses and one end of the hose is fixed, the influence of the pipeline connection on the connection of the weighing device 200 is minimized, which will cause the weighing result of the sealed container 300 after packaging to fluctuate within a small range. Therefore, as long as it is within the predetermined range, it will be fine.

[0039] like Figure 2 ( Figure 2 As shown in Example 2, Example 2 provides a device for packaging acidic corrosive liquid chemicals. The difference from Example 1 is that the sealed container 300 is provided with a second air blowing pipe 312, and the second air blowing pipe 312 is provided with a second air blowing valve 313.

[0040] The working process of the device for dispensing acidic corrosive liquid chemicals provided in Example 2 is exemplified as follows:

[0041] The initial state of the device is that the first feed valve 304 is closed, the water ring vacuum pump 400 is closed, and the first air extraction valve 403 is closed; then the water ring vacuum pump 400 is turned on, the first air extraction valve 403 is opened, and the first feed valve 304 is opened. At this time, the interior of the sealed container 300 is under negative pressure, the emptying port 601 of the storage tank 600 containing the acidic corrosive liquid chemical substance is opened, and the acidic corrosive liquid chemical substance is pressed from the storage tank 600 containing the acidic corrosive liquid chemical substance into the sealed container. When the weighing result of the weighing device 200 falls within the predetermined range, the first air extraction valve 403 is closed, the water ring vacuum pump 400 is turned off, and the second air blowing valve 313 is opened. After the feed liquid in the feed pipeline 305 and the feed hose 303 is pressed back into the storage tank 600 containing the acidic corrosive liquid chemical substance by the air source entering through the second air blowing pipe 312, the first feed valve 304 is closed.

[0042] like Figure 3 ( Figure 3 As shown in Example 3, Example 3 provides a device for packaging acidic corrosive liquid chemicals. The difference from Example 1 is that a second feed valve 314 is arranged between the feed hose 303 and the storage tank 600 containing the acidic corrosive liquid chemicals, and a first air blowing pipe 315 is arranged between the first feed valve 304 and the second feed valve 314, and the first air blowing pipe 315 is provided with a first air blowing valve 316.

[0043] The first air blowing pipe 315 and the second air blowing pipe 313 are both connected to an inert gas source, such as a nitrogen source.

[0044] The working process of the device for dispensing acidic corrosive liquid chemicals provided in Example 2 is exemplified as follows:

[0045] The initial state of the device is that the first feed valve 304 is closed, the water ring vacuum pump 400 is closed, and the first air extraction valve 403 is closed; then the water ring vacuum pump 400 is turned on, the first air extraction valve 403 is opened, and the first feed valve 304 is opened. At this time, the interior of the sealed container 300 is under negative pressure, the emptying port 601 of the storage tank 600 containing acidic corrosive liquid chemicals is opened, and the acidic corrosive chemical substances are pressed into the sealed container from the storage tank 600 containing acidic corrosive liquid chemicals. When the weighing result of the weighing device 200 enters the predetermined range, the first air extraction valve 403 is closed, the water ring vacuum pump 400 is turned off, and the first air blowing valve 316 is opened. After the liquid in the feed pipeline 305 and the feed hose 303 is emptied by the gas source entering through the second air blowing pipe 312, the first feed valve 304 is closed.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for dispensing acidic corrosive liquid chemicals, characterized in that: The device comprises: Bracket; Weighing device; A sealed container capable of being weighed by a weighing device, the sealed container being provided with a feed port and a vacuum exhaust port; the feed port being connected to a feed hose; the feed hose being fixed to a bracket at one end away from the feed port; a first feed valve being provided between the feed port and the feed hose; the feed hose being connected to a storage tank containing an acidic corrosive liquid chemical substance via a feed pipeline; A water ring vacuum pump, wherein the vacuum exhaust end of the water ring vacuum pump is connected to the vacuum exhaust port through an exhaust pipe; the end of the exhaust pipe close to the vacuum exhaust port is set as an exhaust hose, and the end of the exhaust hose away from the vacuum exhaust port is fixed on the bracket, and the exhaust pipe is provided with a first exhaust valve.

2. The device according to claim 1, characterized in that A second feed valve is provided between the feed hose and the storage tank containing acidic corrosive liquid chemicals, and a first air blowing pipe is provided between the first feed valve and the second feed valve, wherein the first air blowing pipe is provided with an air blowing valve.

3. The device according to claim 1, wherein: The sealed container is provided with a second air blowing pipe, and the second air blowing pipe is provided with an air blowing valve.

4. The device according to claim 1, characterized in that The weighing device is a weight weighing device and / or a volume weighing device.

5. The device according to claim 1, wherein: The storage tank containing the acidic corrosive liquid chemical substance is provided with an emptying port and / or a material filling port; The feed port of the feed pipeline extends into the bottom of the storage tank filled with acidic corrosive liquid chemicals.

6. The device according to claim 1, wherein: The air outlet of the water ring vacuum pump is connected to the alkali solution reaction tank for neutralizing the air outlet of the water ring vacuum pump.

7. The device according to claim 1, wherein: The sealed container is provided with a pressure gauge.

8. The device according to claim 1, wherein: The feed hose is connected to the feed port via a hard feed pipe, and the exhaust hose is connected to the vacuum exhaust port via a hard exhaust pipe; The discharge port of the rigid feed pipe is lower than the air inlet of the rigid exhaust pipe.

9. A system for packaging acidic corrosive liquid chemicals, characterized in that: The system comprises the device according to any one of claims 1 to 8; A storage tank filled with acidic corrosive liquid chemicals is connected to the feed hose of the device.

10. The system according to claim 9, wherein: The system further includes an air source in communication with the first air blowing tube.

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