Particle self-suction type feeding device for preparing high-efficiency HEPA (High Efficiency Particulate Air) potassium permanganate composite filter material

Abstract

The utility model discloses an efficient HEPA potassium permanganate composite filter material preparation particle self-suction type feeding device, which comprises a feeding bin, a negative pressure mechanism and a feeding mechanism, the top of the feeding bin is provided with a main feeding port, the main feeding port is provided with a main feeding pipeline, the main feeding pipeline is provided with an upper layer electric valve and a lower layer electric valve, and the upper layer electric valve and the lower layer electric valve are connected with the negative pressure mechanism. A Y-shaped feeding pipe is mounted at the top of the main feeding pipeline, the Y-shaped feeding pipe is provided with two input pipelines and an output pipeline, the output pipeline is connected with the top of the main feeding pipeline, a negative pressure port is formed in the top of each input pipeline, a filter screen is mounted at the position, close to the negative pressure port, in each input pipeline, and branch feeding ports are formed in the positions, below the filter screens, of the input pipelines; the utility model further comprises. According to the automatic feeding device, automatic feeding and supplementing of particle materials can be achieved, manual time-consuming and labor-consuming feeding and frequent feeding are not needed, the input pipeline is switched to be communicated with the negative pressure source in the feeding process, the filter screen is prevented from being blocked, and the feeding efficiency of the particle materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of particle feeding, in particular to a particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter materials. Background Art

[0002] The patent with the patent number CN118001840A discloses an air purification material, its preparation method and application; the multifunctional composite filter material is also called high-efficiency HEPA potassium permanganate composite filter material, and its preparation method includes the following steps: (1) spraying a binder on a support layer, and then evenly sprinkling the air purification material on the support layer; (2) spraying the binder on a filter layer, and then bonding it with the support layer with the binder and the air purification material prepared in step (1) to form a multifunctional composite filter material with a sandwich structure. Among them, the air purification material is granular, including a porous carrier and an oxidant and an activator loaded on the porous carrier, the oxidant is potassium permanganate or sodium permanganate; the activator is one or more of trifluoromethanesulfonate and nitrate; the porous carrier is activated alumina. The air purification material is used for air purification, sterilization, etc.

[0003] Before the above-mentioned granular air purification material is evenly sprinkled on the support layer, it is necessary to feed the granular material into a silo, and then the granular spreading operation can be carried out. The patent with the patent number CN212441899U discloses a granular material falling mechanism and a base material multi-layer structure composite machine, and the granular material is put into the granular material falling mechanism through a feed bin, and then the granular spreading operation is carried out.

[0004] However, for the silo structure of the above-mentioned granular material falling mechanism and the base material multi-layer structure composite machine, the granular material is manually added to the silo. To meet the spreading operation, the height of the silo needs to be designed relatively high. Manually adding the granular material into the silo is time-consuming and laborious, and there is a certain danger; in addition, when preparing the composite filter material, the granular material will be continuously sprinkled on the support layer, so the granular material in the silo will continue to decrease, and the worker needs to frequently add materials, and it is also easy to have the situation of shutdown due to insufficient granular material caused by untimely feeding. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter materials in view of the above technical problems.

[0006] To achieve the above object, the utility model provides a granular self-priming feeding device for preparing an efficient HEPA potassium permanganate composite filter material, which includes a feed bin. A main feed inlet is provided at the top of the feed bin, and a main feed pipeline is provided on the main feed inlet. An upper electric valve and a lower electric valve are sequentially installed on the main feed pipeline from top to bottom. A Y-shaped feed pipe is installed at the top of the main feed pipeline. The Y-shaped feed pipe has two input pipelines and one output pipeline, and the output pipeline is connected to the top of the main feed pipeline. A negative pressure port is provided at the top of each input pipeline, and a filter screen is installed near the negative pressure port in each input pipeline. A branch feed port is provided on each input pipeline and below the filter screen; it also includes a negative pressure mechanism and a feeding mechanism; the negative pressure mechanism includes a negative pressure source, and the two negative pressure ports are selectively connected to the negative pressure source; the feeding mechanism includes a main feeding pipe and two branch feeding pipes. The branch feeding pipes correspond to and are connected to the branch feed ports one by one, and the branch feeding pipes are communicated with the main feeding pipe.

[0007] Preferably, an upper level switch is installed on the main feed pipeline, and the upper level switch is located above the upper electric valve.

[0008] Preferably, a first lower level switch is installed at the main feed inlet or the upper part of the feed bin, and a second lower level switch is installed on the feed bin and below the first lower level switch.

[0009] Preferably, a glass tube sight glass is installed on the main feed pipeline, and the glass tube sight glass is located below the lower electric valve.

[0010] Preferably, the negative pressure mechanism further includes a main negative pressure pipeline, a three-way solenoid valve, and branch negative pressure pipelines. The three-way solenoid valve has one output end and two input ends. One end of the main negative pressure pipeline is communicated with the negative pressure source, and the other end of the main negative pressure pipeline is communicated with the output end of the three-way solenoid valve. Both input ends of the three-way solenoid valve are connected with branch negative pressure pipelines. The branch negative pressure pipelines correspond to the negative pressure ports one by one, and the end of the branch negative pressure pipeline far from the three-way solenoid valve is connected to the corresponding negative pressure port.

[0011] Preferably, a negative pressure sensor is installed on the input pipeline, and the negative pressure sensor is located above the filter screen.

[0012] Preferably, the feeding mechanism further includes a Y-shaped three-way pipe, and the main feeding pipe and the two branch feeding pipes are communicated through the Y-shaped three-way pipe.

[0013] Compared with the prior art, the technical solution has at least the following beneficial effects: Automatic feeding and replenishing of granular materials can be achieved through negative pressure adsorption, without the need for manual laborious feeding and frequent feeding. During the feeding process, by switching the connection between the input pipeline and the negative pressure source, the filter screen can be prevented from being blocked, and the feeding efficiency of granular materials can be improved. Description of the Drawings

[0014] Figure 1Schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 Partial cross-sectional view of the Y-shaped feed pipe, negative pressure sensor and filter screen;

[0016] In the figure, 1, feed bin; 2, main feed inlet; 3, main feed pipe; 4, upper layer electric valve; 5, lower layer electric valve; 6, Y-shaped feed pipe; 7, input pipe; 8, output pipe; 9, negative pressure port; 10, filter screen; 11, branch feed inlet; 12, negative pressure mechanism; 13, feeding mechanism; 14, negative pressure source; 15, main feeding pipe; 16, branch feeding pipe; 17, upper layer level switch; 18, first lower layer level switch; 19, second lower layer level switch; 20, glass tube sight glass; 21, main negative pressure pipe; 22, three-way solenoid valve; 23, branch negative pressure pipe; 24, negative pressure sensor; 25, Y-shaped three-way pipe. Specific embodiments

[0017] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0018] Please refer to Figure 1 and Figure 2 , the embodiment of the present application provides a particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material, including a feed bin 1, a main feed inlet 2 is provided at the top of the feed bin 1, a main feed pipe 3 is provided on the main feed inlet 2, an upper layer electric valve 4 and a lower layer electric valve 5 are sequentially installed on the main feed pipe 3 from top to bottom, a Y-shaped feed pipe 6 is installed at the top of the main feed pipe 3, the Y-shaped feed pipe 6 has two input pipes 7 and an output pipe 8, the output pipe 8 is connected to the top of the main feed pipe 3, a negative pressure port 9 is provided at the top of each input pipe 7, a filter screen 10 is installed near the negative pressure port 9 in each input pipe 7, and a branch feed inlet 11 is provided on each input pipe 7 and below the filter screen 10; it also includes a negative pressure mechanism 12 and a feeding mechanism 13; the negative pressure mechanism 12 includes a negative pressure source 14, the negative pressure source 14 is selected from a negative pressure fan or a vacuum pump, and the two negative pressure ports 9 are selectively connected to the negative pressure source 14, that is, when one negative pressure port 9 is connected to the negative pressure source 14, the other negative pressure port 9 is not connected to the negative pressure source 14; the feeding mechanism 13 includes a main feeding pipe 15 and two branch feeding pipes 16, the branch feeding pipes 16 correspond to and are connected to the branch feed inlets 11 one by one, and the branch feeding pipes 16 are communicated with the main feeding pipe 15.

[0019] To facilitate the detection of the accumulation amount of granular materials above the upper electric valve 4, an upper level switch 17 is installed on the main feed pipe 3, and the upper level switch 17 is located above the upper electric valve 4. When the upper level switch 17 detects a level signal, the accumulation amount of granular materials above the upper electric valve 4 reaches a preset value. At this time, the lower electric valve 5 can be closed, and then the upper electric valve 4 can be opened, so that the granular materials accumulated above the upper electric valve 4 enter the space between the lower electric valve 5 and the upper electric valve 4. Subsequently, the upper electric valve 4 is closed, and then the lower electric valve 5 is opened, so that the granular materials on the lower electric valve 5 fall into the feed bin 1.

[0020] To facilitate the detection of the maximum storage capacity of granular materials in the feed bin 1, a first lower level switch 18 is installed at the main feed inlet 2, or a first lower level switch 18 is installed at the upper part of the feed bin 1; To facilitate the detection of the minimum storage capacity of granular materials in the feed bin 1, a second lower level switch 19 is installed on the feed bin 1 and below the first lower level switch 18. The maximum storage capacity of granular materials in the feed bin 1 is detected by the first lower level switch 18 to avoid excessive feeding of materials. The minimum storage capacity of granular materials in the feed bin 1 is detected by the second lower level switch 19 to avoid insufficient materials.

[0021] To facilitate the manual observation of the material height in the main feed pipe 3, a glass tube sight glass 20 is installed on the main feed pipe 3, and the glass tube sight glass 20 is located below the lower electric valve 5. The glass tube sight glass 20 has a transparent property, and the operator can observe the materials in the main feed pipe 3 through the glass tube sight glass 20.

[0022] To facilitate the selective connection of the two negative pressure ports 9 to the negative pressure source 14, the negative pressure mechanism 12 further includes a main negative pressure pipe 21, a three-way solenoid valve 22, and a branch negative pressure pipe 23. The three-way solenoid valve 22 has one output end and two input ends. One end of the main negative pressure pipe 21 is connected to the negative pressure source 14, and the other end of the main negative pressure pipe 21 is connected to the output end of the three-way solenoid valve 22. Both input ends of the three-way solenoid valve 22 are connected with branch negative pressure pipes 23. The branch negative pressure pipes 23 correspond to the negative pressure ports 9 one by one. The end of the branch negative pressure pipe 23 far from the three-way solenoid valve 22 is connected to the corresponding negative pressure port 9. By controlling the three-way solenoid valve 22, the two branch negative pressure pipes 23 are respectively connected to and disconnected from the main negative pressure pipe 21, so as to realize the connection and disconnection of the two negative pressure ports 9 to the negative pressure source 14.

[0023] To facilitate the detection of the negative pressure in the branch negative pressure pipeline 23, a negative pressure sensor 24 is installed on the input pipeline 7, and the negative pressure sensor 24 is located above the filter screen 10. By setting the negative pressure sensor 24, the negative pressure in the branch negative pressure pipeline 23 and the part of the input pipeline 7 above the filter screen 10 can be detected. When the filter screen 10 is blocked, the negative pressure value detected by the negative pressure sensor 24 will increase, so as to judge the blockage, and then the three-way solenoid valve 22 is used to switch the connection and disconnection between the branch negative pressure pipeline 23 and the main negative pressure pipeline 21.

[0024] To facilitate the connection between the main feed pipe 15 and the two branch feed pipes 16 and reduce the resistance of the granular material flow, the feeding mechanism 13 is further provided with a Y-shaped tee 25, and the main feed pipe 15 and the two branch feed pipes 16 are connected through the Y-shaped tee 25.

[0025] The working principle of this embodiment:

[0026] First, close the upper layer electric valve 4 to cut off the Y-shaped feed pipe 6 from the feed bin 1, so as to avoid the weakening of the negative pressure in the Y-shaped feed pipe 6 caused by the connection between the feed bin 1 and the outside.

[0027] Subsequently, insert the lower end of the main feed pipe 15 into the container storing the granular material, and turn on the negative pressure source 14. The negative pressure source 14 is connected to one of the branch negative pressure pipelines 23 through the main negative pressure pipeline 21 and the three-way solenoid valve 22, and then directly connected to one of the input pipelines 7 of the Y-shaped feed pipe 6, so that the negative pressure of the branch feed pipe connected to this input pipeline 7 increases, much greater than the negative pressure of the other branch feed pipe. Therefore, this branch feed pipe sucks the granular material through the Y-shaped tee 25 and the main feed pipe 15, and the granular material enters this input pipeline 7; most of the granular material falls to the output pipeline 8, and a small part of the granular material is adsorbed on the filter screen 10 in this input pipeline 7. When the negative pressure value detected by the corresponding negative pressure sensor 24 increases, the three-way solenoid valve 22 switches the passage, so that this branch negative pressure pipeline 23 is disconnected from the main negative pressure pipeline 21, and the other branch negative pressure pipeline 23 is connected to the main negative pressure pipeline 21, so that the branch feed pipe switches to work to adsorb the material, and the granular material on the filter screen 10 also falls due to the disappearance of the negative pressure and no longer blocks the filter screen 10;

[0028] When the upper level switch 17 detects the level signal, close the lower layer electric valve 5, and then open the upper layer electric valve 4, so that the granular material accumulated above the upper layer electric valve 4 enters between the lower layer electric valve 5 and the upper layer electric valve 4. Subsequently, close the upper layer electric valve 4, and then open the lower layer electric valve 5, so that the granular material on the lower layer electric valve 5 falls into the feed bin 1; by setting the upper layer electric valve 4 and the lower layer electric valve 5, the negative pressure environment in the Y-shaped feed pipe 6 can be ensured not to be affected by the feed bin 1.

[0029] When the first lower level switch 18 detects a level signal, the storage quantity of the granular material in the feed bin 1 reaches the preset value, the negative pressure source 14 is closed, and the feeding is stopped.

[0030] When the second lower level switch 19 detects a level signal, the storage quantity of the granular material in the feed bin 1 is insufficient, the negative pressure source 14 is turned on, and the above steps are repeated for feeding until the first lower level switch 18 detects a level signal.

[0031] In summary, the air purification granular material feeding device of this embodiment can realize automatic feeding and supplementary feeding of granular materials through negative pressure adsorption, without the need for manual laborious feeding and frequent feeding, and during the feeding process, by switching the connection between the input pipeline 7 and the negative pressure source 14, the filter screen 10 is prevented from being blocked, and the feeding efficiency of the granular material is improved.

[0032] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A particle self-priming feeding device for preparing a high-efficiency HEPA potassium permanganate composite filter material, comprising a feed bin (1), characterized in that: The feed bin (1) is provided with a main feed port (2) at the top, a main feed pipe (3) is provided on the main feed port (2), an upper electric valve (4) and a lower electric valve (5) are installed on the main feed pipe (3) in order from top to bottom, a Y-shaped feed pipe (6) is installed on the top of the main feed pipe (3), the Y-shaped feed pipe (6) has two input pipes (7) and an output pipe (8), the output pipe (8) is connected to the top of the main feed pipe (3), each input pipe (7) is provided with a negative pressure port (9) at the top, and each input pipe (7) has a negative pressure port (9) near the negative pressure port ( 9) are each provided with a filter screen (10), and each input pipe (7) is provided with a branch feed port (11) below the filter screen (10); the negative pressure mechanism (12) and a feeding mechanism (13) are also provided; the negative pressure mechanism (12) includes a negative pressure source (14), and the two negative pressure ports (9) are selectively connected to the negative pressure source (14); the feeding mechanism (13) includes a main feeding pipe (15) and two branch feeding pipes (16), the branch feeding pipes (16) correspond to the branch feeding ports (11) one by one and are connected, and the branch feeding pipes (16) are connected to the main feeding pipe (15).

2. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 1 is characterized in that: An upper material level switch (17) is installed on the main feed pipe (3), and the upper material level switch (17) is located above the upper electric valve (4).

3. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 2 is characterized in that: A first lower material level switch (18) is installed on the upper part of the main feed port (2) or the feed bin (1), and a second lower material level switch (19) is installed on the feed bin (1) and below the first lower material level switch (18).

4. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 1 is characterized in that: The main feed pipe (3) is equipped with a glass tube sight glass (20), and the glass tube sight glass (20) is located below the lower electric valve (5).

5. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 1 is characterized in that: The negative pressure mechanism (12) further comprises a main negative pressure pipeline (21), a three-way solenoid valve (22), and a branch negative pressure pipeline (23). The three-way solenoid valve (22) has an output end and two input ends. One end of the main negative pressure pipeline (21) is connected to the negative pressure source (14), and the other end of the main negative pressure pipeline (21) is connected to the output end of the three-way solenoid valve (22). Both input ends of the three-way solenoid valve (22) are connected to the branch negative pressure pipeline (23). The branch negative pressure pipeline (23) corresponds to the negative pressure port (9) one by one. One end of the branch negative pressure pipeline (23) away from the three-way solenoid valve (22) is connected to the negative pressure port (9) corresponding thereto.

6. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 5 is characterized in that: A negative pressure sensor (24) is installed on the input pipe (7), and the negative pressure sensor (24) is located above the filter screen (10).

7. The particle self-priming feeding device for preparing high-efficiency HEPA potassium permanganate composite filter material according to claim 1 is characterized in that: The feeding mechanism (13) further comprises a Y-shaped three-way pipe (25), and the main feeding pipe (15) and the two branch feeding pipes (16) are connected via the Y-shaped three-way pipe (25).

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