Device for collecting iron powder in air for environmental monitoring

Abstract

The utility model relates to the technical field of environmental monitoring, and discloses a device for collecting iron powder in air for environmental monitoring, which comprises a support, an iron powder collecting pipe is fixedly connected to the middle of the support, an inner magnetic strong magnetic assembly is arranged on the outer side of the middle of the iron powder collecting pipe, and a control panel is fixedly connected to the outer side of the upper part of the iron powder collecting pipe. A sealing anti-blocking assembly is arranged on the inner side of the lower portion of the iron powder collecting pipe, the inner strong magnetic assembly comprises a permanent magnet and a stainless steel magnetic shielding sleeve, the permanent magnet is arranged on the outer side of the middle of the iron powder collecting pipe in a sleeving mode, and the stainless steel magnetic shielding sleeve is fixedly connected to the outer side of the permanent magnet. According to the iron powder collecting device, the iron powder collecting pipe, the permanent magnet, the stainless steel magnetic shielding sleeve and other structures are matched, so that the iron powder in the air can be separated from other iron-containing particles by the collecting device, and the monitoring accuracy of the iron powder in the ambient air is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to a collection device for iron powder in the air for environmental monitoring. Background Art

[0002] Iron dust mainly comes from the friction between the wheels and tracks of trains during train operation, including ordinary railways, high-speed railways, subways, etc. A certain amount of iron dust will be generated during their operation. Especially in the subway environment, due to the relatively enclosed subway environment, the generated iron dust is difficult to diffuse, and it is easy to cause the accumulation of iron dust concentration. If iron dust is inhaled, it will cause harm to people's lungs and trigger lung diseases. Therefore, a collection device for iron powder in the air for environmental monitoring is needed to monitor the iron dust in the air.

[0003] In the prior art, when the collection device collects iron powder in the air, the iron powder will be collected together with other iron-containing particles, resulting in a high determination result of the subsequent iron powder. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a collection device for iron powder in the air for environmental monitoring, aiming to improve the difficulty of the existing collection device in collecting iron powder in the air, so that other iron-containing particles cannot be collected when collecting iron powder.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A collection device for iron powder in the air for environmental monitoring, including a bracket, a middle part of the bracket is fixedly connected with an iron powder collection tube, an inner magnetic strong magnetic component is arranged on the outer side of the middle part of the iron powder collection tube, a control panel is fixedly connected to the outer side of the upper part of the iron powder collection tube, and a sealing and anti-blocking component is arranged on the inner side of the lower part of the iron powder collection tube.

[0006] As a further description of the above technical solution:

[0007] The inner magnetic strong magnetic component includes a permanent magnet and a stainless steel magnetic shielding sleeve. The permanent magnet is sleeved on the outer side of the middle part of the iron powder collection tube, and the stainless steel magnetic shielding sleeve is fixedly connected to the outer side of the permanent magnet.

[0008] As a further description of the above technical solution:

[0009] The sealing and anti-blocking component includes a sealing plug and a sealing gasket. The upper part of the sealing plug is threadedly connected to the inner side of the lower part of the iron powder collection tube, and the sealing gasket is fixedly connected to the middle part of the sealing plug.

[0010] As a further description of the above technical solution:

[0011] The height of the bracket is about 1.0 m, the upper end of the iron powder collection tube is 1.5 m from the ground, and a connecting tube is sleeved inside the lower part of the iron powder collection tube.

[0012] As a further description of the above technical solution:

[0013] The iron powder collection tube is made of polytetrafluoroethylene material, and the control panel is made of polyethylene material.

[0014] As a further description of the above technical solution:

[0015] The sealing plug is made of polytetrafluoroethylene material, and the sealing gasket is made of silicone rubber material.

[0016] The utility model has the following beneficial effects:

[0017] In the utility model, through the cooperation between structures such as the iron powder collection tube, the permanent magnet, and the stainless steel magnetic shielding sleeve, the collection device can separate iron powder and other iron-containing particulate matters in the air, improving the accuracy of iron powder monitoring in ambient air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a device for collecting iron powder in air for environmental monitoring proposed by the utility model;

[0019] Figure 2 is Figure 1 an enlarged view of part A in

[0020] Figure 3 FIG. is a schematic diagram of sample collection of a device for collecting iron powder in air for environmental monitoring proposed by the utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Bracket; 2. Iron powder collection tube; 3. Control panel; 4. Permanent magnet; 5. Stainless steel magnetic shielding sleeve; 6. Sealing gasket; 7. Sealing plug; 8. Connecting tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0024] Refer to Figures 1-3, an embodiment provided by the present utility model: a collection device for iron powder in air for environmental monitoring, comprising a bracket 1. A middle part of the bracket 1 is fixedly connected with an iron powder collection tube 2. An inner magnetic strong magnetic component is arranged on an outer side of a middle part of the iron powder collection tube 2. A control panel 3 is fixedly connected to an outer side of an upper part of the iron powder collection tube 2. A sealing and anti-blocking component is arranged on an inner side of a lower part of the iron powder collection tube 2. The height of the bracket 1 is about 1.0 m. The upper end of the iron powder collection tube 2 is 1.5 m away from the ground. A connecting tube 8 is sleeved on an inner side of a lower part of the iron powder collection tube 2. The inner magnetic strong magnetic component comprises a permanent magnet 4 and a stainless steel magnetic shielding sleeve 5. The permanent magnet 4 is sleeved on an outer side of a middle part of the iron powder collection tube 2. The stainless steel magnetic shielding sleeve 5 is fixedly connected to an outer side of the permanent magnet 4. The iron powder collection tube 2 is made of polytetrafluoroethylene material, and the control panel 3 is made of polyethylene material.

[0025] The iron powder collection tube 2 is fixed by the bracket 1. By removing the sealing plug 7, the upper end of the iron powder collection tube 2 is connected to an air sampler through control of the control panel 3 to collect a certain volume of air sample. The iron powder in the air is attached to the tube wall of the iron powder collection tube 2 under the influence of the magnetic force of the permanent magnet 4 and is not carried away by the sampling air flow, while other iron-containing particles in the air pass through the iron powder collection tube 2 because they are not attracted by the magnetic force, realizing that the collection device can separate the iron powder in the air from other iron-containing particulate matters and improving the accuracy of iron powder monitoring in ambient air.

[0026] Refer to Figures 1-2 , the sealing and anti-blocking component comprises a sealing plug 7 and a sealing gasket 6. The upper part of the sealing plug 7 is threadedly connected to an inner side of a lower part of the iron powder collection tube 2. The sealing gasket 6 is fixedly connected to a middle part of the sealing plug 7. The sealing plug 7 is made of polytetrafluoroethylene material, and the sealing gasket 6 is made of silicone rubber material.

[0027] After the sample collection is completed, the sealing plug 7 with the sealing gasket 6 already sleeved is screwed onto the lower end of the iron powder collection tube 2. Then, aqua regia solution is slowly added to the iron powder collection tube 2. The iron powder collection tube 2 is placed in a boiling water bath for heating. After cooling, according to the requirements of atomic absorption spectrophotometry, the acidity is adjusted and the concentration of iron is measured, and the concentration of iron powder in the air is calculated according to the sampling volume.

[0028] Working principle: When it is necessary to collect iron powder in the air, first remove the sealing plug 7, connect the upper end of the iron powder collection tube 2 to an air sampler to collect a certain volume of air sample. The iron powder in the air is attached to the tube wall of the iron powder collection tube 2 under the influence of the magnetic force of the permanent magnet 4 and is not carried away by the sampling air flow, while other iron-containing particles in the air pass through the iron powder collection tube 2 because they are not attracted by the magnetic force, realizing that the collection device can separate the iron powder in the air from other iron-containing particulate matters and improving the accuracy of iron powder monitoring in ambient air.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for collecting iron powder in air for environmental monitoring, comprising a bracket (1), characterized in that: An iron powder collection tube (2) is fixedly connected to the middle of the bracket (1), an inner magnetic strong magnetic component is arranged on the outer side of the middle of the iron powder collection tube (2), a control panel (3) is fixedly connected to the outer side of the upper part of the iron powder collection tube (2), and a sealing anti-blocking component is arranged on the inner side of the lower part of the iron powder collection tube (2).

2. The device for collecting iron powder in air for environmental monitoring according to claim 1, characterized in that: The internal magnetic strong magnetic component comprises a permanent magnet (4) and a stainless steel magnetic shielding sleeve (5); the permanent magnet (4) is sleeved on the outside of the middle part of the iron powder collection tube (2); and the stainless steel magnetic shielding sleeve (5) is fixedly connected to the outside of the permanent magnet (4).

3. The device for collecting iron powder in air for environmental monitoring according to claim 1, characterized in that: The sealing and anti-blocking assembly comprises a sealing plug (7) and a sealing gasket (6); the upper portion of the sealing plug (7) is threadedly connected to the inner side of the lower portion of the iron powder collection tube (2); and the sealing gasket (6) is fixedly connected to the middle portion of the sealing plug (7).

4. The device for collecting iron powder in air for environmental monitoring according to claim 1, characterized in that: The support (1) has a height of about 1.0 m, the upper end of the iron powder collection pipe (2) is 1.5 m from the ground, and a connecting pipe (8) is sleeved on the inner side of the lower part of the iron powder collection pipe (2).

5. The device for collecting iron powder in air for environmental monitoring according to claim 2, characterized in that: The iron powder collection tube (2) is made of tetrafluoroethylene material, and the control panel (3) is made of polyethylene material.

6. The device for collecting iron powder in air for environmental monitoring according to claim 3, characterized in that: The sealing plug (7) is made of tetrafluoroethylene material, and the sealing gasket (6) is made of silicone rubber material.

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