Device for filtering dust of pressure swing adsorption oxygen-making and nitrogen-making molecular sieve

Abstract

The utility model relates to the technical field of molecular sieve dust filtration, and in particular relates to a device for pressure swing adsorption oxygen and nitrogen production molecular sieve dust filtration. The utility model provides the device for filtering the dust of the molecular sieve for generating oxygen and nitrogen by pressure swing adsorption, which can isolate the molecular sieve from air, mechanically and automatically filter the dust, improve the filtering efficiency of the molecular sieve and reduce the economic loss. A device for filtering dust of a pressure swing adsorption oxygen-making and nitrogen-making molecular sieve comprises a bottom plate, supporting legs and the like, and a plurality of supporting legs are placed on the upper side of the middle of the bottom plate. According to the utility model, dry instrument air is introduced into the sealing film, so that the molecular sieve can be isolated from the air, and the economic loss is reduced; the vibration motor on the connecting plate is started, the mounting frame vibrates through the acting force of the first supporting spring and the second supporting spring, then the guide frame vibrates, the filter screen is driven to vibrate, dust in the molecular sieve is separated, and the filtering efficiency of the molecular sieve can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular sieve dust filtration, in particular to a device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production. Background Technique

[0002] After the molecular sieve is pulverized after the pressure swing adsorption oxygen production equipment and nitrogen production equipment have been running for a certain number of years, or after problems occur in the adsorber bed layer, the bed layer resistance will increase, increasing the energy consumption of oxygen production and nitrogen production, seriously affecting the oxygen production and nitrogen production purity and flow rate of the equipment. After this problem occurs, it is necessary to remove the molecular sieve in the adsorption tower, filter the dust in the molecular sieve and then refill it into the adsorber. There are two existing methods for filtering molecular sieves. One is to return to the manufacturer for filtering, which has a long cycle and high cost. The other is manual filtering in the air, which will cause the molecular sieve to come into contact with the moisture in the air during the filtering process, resulting in the molecular sieve absorbing water in the air, which will cause a certain decrease in the strength of the molecular sieve and affect its service life.

[0003] Therefore, a device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production has now been developed, which can isolate the molecular sieve from the air, mechanically and automatically filter dust, improve the filtering efficiency of the molecular sieve, and reduce economic losses. Content of the Utility Model

[0004] In order to overcome the shortcomings of the existing methods for filtering molecular sieves, such as long cycle and high cost when returning to the manufacturer for filtering, and the contact between the molecular sieve and the moisture in the air during the filtering process by manual filtering, which affects the service life of the molecular sieve, the utility model provides a device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production, which can isolate the molecular sieve from the air, mechanically and automatically filter dust, improve the filtering efficiency of the molecular sieve, and reduce economic losses.

[0005] A device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production includes a bottom plate, support feet, an installation frame, first support springs, second support springs, an installation bracket, a filtering component and a sealing component. A plurality of support feet are placed on the upper side of the middle of the bottom plate. An installation frame is connected between the upper sides of the support feet. The upper side of the installation frame is connected to an installation bracket through two first support springs on the left and right. Two second support springs are connected between the rear part of the installation bracket and the installation frame. A filtering component capable of filtering the dust in the molecular sieve is arranged on the installation bracket, and a sealing component capable of isolating the molecular sieve from the air is arranged on the bottom plate.

[0006] Further explanation, the installation bracket is inclined backward.

[0007] Further explanation: The filtering component includes a backing plate, a guiding frame, a discharge plate, a filter screen, a connecting plate and a vibration motor. The backing plate is connected to the lower side of the mounting frame. The guiding frames are connected to the left and right parts of the mounting frame. The discharge plate is connected between the rear sides of the guiding frames. The filter screen is connected between the guiding frames and is connected to the mounting frame. The connecting plate is connected to the upper side of the rear part of the mounting frame. The guiding frames are both connected to the connecting plate. The discharge plate is connected to the connecting plate. The vibration motor is connected to the rear side of the connecting plate.

[0008] Further explanation: Baffles are provided on the upper sides of the left and right parts of the discharge plate.

[0009] Further explanation: The guiding frames are in a shape of an inverted V.

[0010] Further explanation: The sealing component includes a sealing frame, and the sealing frame is connected to the outside of the bottom plate.

[0011] The beneficial effects of the present utility model are as follows: By introducing dry instrument air into the sealing film, the present utility model can isolate the molecular sieve from the air and reduce economic losses. Starting the vibration motor on the connecting plate, through the acting forces of the first support spring and the second support spring, the mounting frame vibrates, and then the guiding frames vibrate, driving the filter screen to vibrate, so that the dust in the molecular sieve is separated, and the filtering efficiency of the molecular sieve can be improved. Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0013] Figure 2 is a first partial three-dimensional structural schematic diagram of the present utility model.

[0014] Figure 3 is a second partial three-dimensional structural schematic diagram of the present utility model.

[0015] Markings in the drawings: 1: bottom plate, 2: support feet, 3: mounting frame, 4: first support spring, 5: second support spring, 6: mounting frame, 7: backing plate, 8: guiding frame, 81: discharge plate, 9: filter screen, 10: connecting plate, 11: vibration motor, 12: sealing frame. Specific Embodiments

[0016] The present utility model will be further described below in conjunction with specific embodiments. The illustrative embodiments and explanations of the present utility model are used to explain the present utility model, but do not limit the present utility model.

[0017] A device for filtering dust of molecular sieve for pressure swing adsorption oxygen production and nitrogen production, as Figures 1 - 3As shown in the figure, it includes a bottom plate 1, support feet 2, an installation frame 3, a first support spring 4, a second support spring 5, an installation bracket 6, a filtering component and a sealing component. Four support feet 2 are placed on the upper side of the middle part of the bottom plate 1. An installation frame 3 is connected between the upper sides of the support feet 2. The upper side of the installation frame 3 is connected to an installation bracket 6 through two first support springs 4 on the left and right. Two second support springs 5 are connected between the rear part of the installation bracket 6 and the installation frame 3. The installation bracket 6 is inclined backward to facilitate discharging. A filtering component is provided on the installation bracket 6, and a sealing component is provided on the bottom plate 1.

[0018] As Figure 2 and Figure 3 As shown in the figure, the filtering component includes a backing plate 7, a guiding frame 8, a discharging plate 81, a filter screen 9, a connecting plate 10 and a vibration motor 11. The backing plate 7 is connected to the lower side of the installation bracket 6. Guiding frames 8 are connected to both the left and right parts of the installation bracket 6. A discharging plate 81 is connected between the rear sides of the guiding frames 8. Baffles are provided on the upper sides of both the left and right parts of the discharging plate 81 to prevent the molecular sieve from falling. A filter screen 9 is connected between the guiding frames 8. The filter screen 9 is connected to the installation bracket 6. The guiding frames 8 are in a shape of an inverted V to facilitate gathering the molecular sieve. A connecting plate 10 is connected to the upper side of the rear part of the installation bracket 6. The guiding frames 8 are all connected to the connecting plate 10. The discharging plate 81 is connected to the connecting plate 10. A vibration motor 11 is connected to the rear side of the connecting plate 10.

[0019] As Figure 1 As shown in the figure, the sealing component includes a sealing frame 12, and the sealing frame 12 is connected to the outside of the bottom plate 1.

[0020] When using the present utility model, first place the bottom plate 1 in the molecular sieve dust filtering area, then support the installation frame 3 through the support feet 2 so that the installation frame 3 is located on the bottom plate 1, and lay a screen mesh in the gap between the connecting plate 10 and the guiding frames 8. Then cover a sealing film on the sealing frame 12, enable the staff to wear work clothes and wear masks and enter the sealing frame 12, introduce dry instrument air into the sealing film to make the whole environment in a slightly positive pressure working state to ensure that the outside humid air does not contact the highly water-absorbent molecular sieve. Then let the staff pour the molecular sieve onto the filter screen 9, start the vibration motor 11 on the connecting plate 10, and due to the acting force of the first support spring 4 and the second support spring 5, the installation bracket 6 vibrates, and then the guiding frames 8 vibrate, driving the filter screen 9 to vibrate, so that the dust in the molecular sieve is separated, and the filtered molecular sieve is discharged from the discharging plate 81, and the baffle blocks the molecular sieve. Thus, it can isolate the molecular sieve from the air, mechanically and automatically filter the dust, improve the filtering efficiency of the molecular sieve, and reduce the economic loss. The screen mesh is used to prevent the molecular sieve from falling onto the backing plate 7 during the filtering process.

[0021] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present utility model. Those skilled in the art will understand that variations of the present utility model will be included within the scope of the claims herein.

Claims

1. An apparatus for filtering molecular sieve dust in pressure swing adsorption for oxygen production and nitrogen production, characterized in that: It includes a bottom plate (1), support feet (2), a mounting frame (3), a first support spring (4), a second support spring (5), a mounting bracket (6), a filtering component, and a sealing component. Multiple support feet (2) are placed on the upper side of the middle of the bottom plate (1). An installation frame (3) is connected between the upper sides of the support feet (2). The upper side of the installation frame (3) is connected to a mounting bracket (6) through two first support springs (4) on the left and right. Two second support springs (5) are connected between the rear part of the mounting bracket (6) and the installation frame (3). A filtering component capable of filtering dust in the molecular sieve is provided on the mounting bracket (6). A sealing component capable of isolating the molecular sieve from the air is provided on the bottom plate (1).

2. The device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production according to claim 1 is characterized in that: The mounting bracket (6) is inclined backward.

3. A device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production, as claimed in claim 1, wherein: The filtering component includes a backing plate (7), guide frames (8), a discharge plate (81), a filter screen (9), a connecting plate (10), and a vibration motor (11). The backing plate (7) is connected to the lower side of the mounting bracket (6). Guide frames (8) are connected to both the left and right parts of the mounting bracket (6). A discharge plate (81) is connected between the rear sides of the guide frames (8). A filter screen (9) is connected between the guide frames (8). The filter screen (9) is connected to the mounting bracket (6). The upper side of the rear part of the mounting bracket (6) is connected to a connecting plate (10). The guide frames (8) are both connected to the connecting plate (10). The discharge plate (81) is connected to the connecting plate (10). A vibration motor (11) is connected to the rear side of the connecting plate (10).

4. A device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production, as claimed in claim 3, wherein: Baffles are provided on the upper sides of both the left and right parts of the discharge plate (81).

5. A device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production, according to claim 3, characterized in that: The guide frames (8) are in a shape of an inverted V.

6. The device for filtering molecular sieve dust in pressure swing adsorption oxygen production and nitrogen production according to claim 1 is characterized in that: The sealing component includes a sealing frame (12), and the sealing frame (12) is connected to the outside of the bottom plate (1).

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