Automatic quick air supply device for powder barrel

Abstract

The utility model discloses an automatic quick air supply device for a powder barrel, which comprises the powder barrel and an air supply pipe connected with the powder barrel, and the air supply pipe is connected with a high-pressure air source. The air supply pipe is provided with an air inlet assembly used for controlling air inlet, an air exhaust assembly used for exhausting air, a pressure detection assembly used for detecting the pressure in the air supply pipe and an oxygen content detection assembly used for detecting the oxygen content in the air supply pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of air jet mills, and particularly relates to an automatic and rapid air supplement device for a powder barrel. Background Art

[0002] An air jet mill uses a compressor to compress high-pressure gas. The high-pressure gas enters the grinding chamber of the air jet mill and drives the powder in the grinding chamber to collide with each other at supersonic speed, thereby realizing the equipment for crushing the powder into fine powder. Air jet mills have been widely used in industries such as food processing, medicine, mining, and magnetic materials.

[0003] In the production of magnetic materials, the fine powder after being crushed by the air jet mill equipment is stored in a powder barrel, and it is necessary to supplement air into the powder barrel to ensure the air pressure inside the powder barrel. However, in the existing air supplement device, when the air source pressure is low, the air supplement time will be too long, resulting in low production efficiency. When the air source pressure is high, it may cause the pressure inside the powder barrel to be too high, resulting in the powder spraying out and exploding, causing personal injury. Content of the Utility Model

[0004] In order to solve the technical problems in the background art, the utility model proposes an automatic and rapid air supplement device for a powder barrel.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] An automatic and rapid air supplement device for a powder barrel includes a powder barrel and a supplementary air pipe connected to the powder barrel, and the supplementary air pipe is connected to a high-pressure air source;

[0007] An air inlet assembly for controlling air intake, an exhaust assembly for exhausting air, a pressure detection assembly for detecting the pressure in the supplementary air pipe, and an oxygen content detection assembly for detecting the oxygen content in the supplementary air pipe are arranged on the supplementary air pipe.

[0008] Preferably, the air inlet assembly includes an air inlet valve arranged on the supplementary air pipe and a first time relay for controlling the opening and closing of the air inlet valve. Through the above improvement, the air intake can be controlled by the air inlet valve. When air inflation is required, a certain time can be set by the first time relay, and the first time relay will control the air inlet valve to open, enabling the gas to enter the powder barrel, thereby realizing automatic air supplement.

[0009] Preferably, the exhaust assembly includes an exhaust valve and a second time relay for controlling the opening and closing of the exhaust valve. Through the above improvement, when the air pressure inside the powder barrel is too large and exceeds the set range, the second time relay can be used to allow the gas to be discharged from the exhaust valve for a certain time, thereby realizing automatic exhaust to maintain the pressure inside the powder barrel.

[0010] Preferably, the pressure detection component includes an electronic pressure gauge disposed on the air supply pipe. Through the above improvement, the electronic pressure gauge can detect the pressure inside the powder bucket. When the air pressure inside the powder bucket is too high and exceeds the set range, the electronic pressure gauge can send a signal to the second time relay to open the exhaust valve for exhaust.

[0011] Preferably, the oxygen content detection component includes an oxygen content detector disposed on the air supply pipe. Through the above improvement, the oxygen content detector can detect the oxygen content inside the powder bucket, thereby detecting whether there is a leak point in the entire inflation structure.

[0012] Preferably, the oxygen content detection component further includes an oxygen content alarm connected to the oxygen content detector. Through the above improvement, during the entire inflation process, when the oxygen content exceeds the set range, the oxygen content alarm will give an alarm, thereby reminding the operator to check for leak points and perform repairs if necessary.

[0013] Preferably, a safety pressure relief component is disposed on the air supply pipe. The safety pressure relief component includes a pressure relief valve group, a pressure sensor for controlling the pressure relief valve group, and a pressure alarm connected to the pressure sensor. Through the above improvement, when the pressure inside the entire system exceeds the safety range, the pressure sensor can drive the pressure relief valve group to open for pressure relief, and the pressure alarm will give an alarm, improving the safety of the entire air supply device.

[0014] Preferably, the pressure relief valve group further includes a primary safety valve, and when the pressure inside the air supply pipe reaches the safety upper limit, the primary safety valve opens. Through the above improvement, when the pressure inside the air supply pipe reaches the safety upper limit, the primary safety valve will open, thereby improving the safety of the entire air supply device.

[0015] Preferably, the pressure relief valve group further includes a secondary safety valve, and when the pressure inside the air supply pipe reaches the safety limit, the primary safety valve and the secondary safety valve open simultaneously. Through the above improvement, when the pressure inside the entire system exceeds the safety limit, the primary safety valve and the secondary safety valve open simultaneously, greatly improving the pressure relief effect and further enhancing safety.

[0016] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0017] The high-pressure gas source is connected to the powder bucket through the air supply pipe, and an intake component, an exhaust component, a pressure detection component, and an oxygen content detection component are disposed on the air supply pipe. The intake component, the exhaust component, and the pressure detection component cooperate with each other to ensure that the air pressure of the entire air supply device is maintained at a certain specified pressure, and the oxygen content detection component can detect the oxygen content inside the air supply device, thereby ensuring the stability and safety of the air supply device during the air supply process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structural schematic diagram of the present utility model;

[0019] In the figure: 1, powder bucket; 2, air supply replenishing pipe; 3, air intake assembly; 4, exhaust assembly; 5, pressure detection assembly; 6, oxygen content detection assembly; 7, high-pressure gas source; 9, safety pressure relief assembly; 101, air intake valve; 102, first time relay; 201, exhaust valve; 202, second time relay; 301, pressure sensor; 302, pressure alarm; 303, primary safety valve; 304, secondary safety valve; 305, electronic pressure gauge; 306, pressure relief valve group; 401, oxygen content detector; 402, oxygen content alarm; Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present 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 present utility model.

[0021] It should be understood that although terms such as upper, middle, lower, top end, one end, etc. appear in this text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for easy understanding, rather than to define any directional or sequential limitations.

[0022] As Figure 1 shown, an automatic and rapid air replenishing device for a powder bucket 1 includes a powder bucket 1 and an air supply replenishing pipe 2 connected to the powder bucket 1, and the air supply replenishing pipe 2 is connected to a high-pressure gas source 7;

[0023] Specifically, an air intake assembly 3 for controlling air intake, an exhaust assembly 4 for exhausting air, a pressure detection assembly 5 for detecting the pressure in the air supply replenishing pipe 2, and an oxygen content detection assembly 6 for detecting the oxygen content in the air supply replenishing pipe 2 are provided on the air supply replenishing pipe 2.

[0024] By connecting the high-pressure gas source 7 to the powder bucket 1 through the air supply replenishing pipe 2 and providing an air intake assembly 3, an exhaust assembly 4, a pressure detection assembly 5, and an oxygen content detection assembly 6 on the air supply replenishing pipe 2, and the mutual cooperation among the air intake assembly 3, the exhaust assembly 4, and the pressure detection assembly 5 can ensure that the air pressure of the entire air replenishing device is maintained at a certain specified pressure, and the oxygen content detection assembly 6 can detect the oxygen content inside the air replenishing device, thereby ensuring the stability and safety of the air replenishing device during the air replenishing process.

[0025] As Figure 1As shown in the figure, for a further explanation of the implementation of the intake assembly 3 in this embodiment, where the intake assembly 3 includes an intake valve 101 provided on the make-up air pipe 2, and a first time relay 102 for controlling the opening and closing of the intake valve 101.

[0026] During the inflation process, the intake can be controlled by the intake valve 101. When inflation is required, a certain time is set through the first time relay 102. The first time relay 102 will control the intake valve 101 to open, allowing gas to enter the powder bucket 1. After a certain time, the first time relay 102 will control the intake valve 101 to close, thus achieving automatic air make-up.

[0027] As Figure 1 shown in the figure, for a further explanation of the implementation of the exhaust assembly 4 in this embodiment, the exhaust assembly 4 includes an exhaust valve 201, and a second time relay 202 for controlling the opening and closing of the exhaust valve 201.

[0028] When the air pressure inside the powder bucket 1 is too high and exceeds the set range, the second time relay 202 can be used to allow the gas to be discharged from the exhaust valve 201 for a certain time, thus achieving automatic exhaust and keeping the pressure inside the powder bucket 1 within the set range.

[0029] Furthermore, the pressure detection assembly 5 includes an electronic pressure gauge 305 provided on the make-up air pipe 2. The electronic pressure gauge 305 can detect the pressure inside the powder bucket 1. When the air pressure inside the powder bucket 1 is too high and exceeds the set range, the electronic pressure gauge 305 can send a signal to the second time relay 202 to open the exhaust valve 201 for exhaust, so as to keep the internal air pressure within the set range.

[0030] As Figure 1 shown in the figure, as a further explanation of the implementation of the oxygen content detection assembly 6 in this embodiment, where the oxygen content detection assembly 6 includes an oxygen content detector 401 provided on the make-up air pipe 2. The oxygen content detector 401 can detect the oxygen content inside the powder bucket 1, so as to detect whether there is a leak in the entire inflation structure.

[0031] Furthermore, the oxygen content detection assembly 6 further includes an oxygen content alarm 402 connected to the oxygen content detector 401. During the entire inflation process, when the oxygen content exceeds the set range, the oxygen content alarm 402 will alarm, thus reminding the operator to check for leaks and indicating that maintenance is required.

[0032] In some other embodiments, a safety pressure relief assembly 9 is provided on the make-up air pipe 2. The safety pressure relief assembly 9 includes a pressure relief valve group 306, a pressure sensor 301 for controlling the pressure relief valve group 306, and a pressure alarm 302 connected to the pressure sensor 301.

[0033] When the pressure inside the entire system exceeds the safe range, the pressure sensor 301 can drive the pressure relief valve group 306 to open for pressure relief, and the pressure alarm 302 will give an alarm, enhancing the safety of the entire air replenishing device.

[0034] Specifically, the pressure relief valve group 306 further includes a primary safety valve 303. When the pressure in the air supply pipe 2 reaches the safety upper limit, the primary safety valve 303 will open for exhaust, thereby enhancing the safety of the entire air replenishing device.

[0035] Preferably, the pressure relief valve group 306 further includes a secondary safety valve 304. When the pressure inside the entire system exceeds the safety limit, the primary safety valve 303 and the secondary safety valve 304 will open simultaneously, greatly enhancing the pressure relief effect and further enhancing safety.

[0036] As Figure 1 shown, as a further explanation of the implementation steps of the automatic and rapid air replenishing device for the entire powder bucket 1,

[0037] S1. Open the high-pressure gas source 7 (pressure > 0.5Pg) to inflate the powder bucket 1. The first time relay 102 controls the on-off and inflation time of the inflation valve, and replenishes a fixed amount of gas into the air supply pipe 2;

[0038] S2. The electronic pressure gauge tests the pressure inside the powder bucket 1. If the pressure value is within the set range, the inflation is completed;

[0039] S3. If the pressure value is lower than the set range, repeat process S1;

[0040] S4. If the pressure value is higher than the set range, the exhaust valve 201 will open. The second time relay 202 controls the on-off and exhaust time of the exhaust valve 201 to discharge a certain amount of gas;

[0041] S5. The electronic pressure gauge continues to test the pressure inside the powder bucket 1, and determines whether the pressure value is within the set range. According to the pressure value, it automatically selects whether to perform air replenishment S1 or exhaust S4 until the pressure value reaches the set range and the inflation is completed.

[0042] In addition, during the entire inflation process, the oxygen content detection component 6 detects the internal oxygen content. When the oxygen content exceeds the set range, the oxygen content alarm 402 will give an alarm to prompt the need to check for air leakage points.

[0043] Moreover, the device is equipped with a safety pressure relief component 9. After opening the high-pressure gas source 7 for inflation, the safety pressure relief component 9 monitors the system pressure. When the system pressure exceeds the safety upper limit (set value), the primary safety valve 303 automatically exhausts and relieves pressure. When the pressure exceeds the safety limit (set value), the primary safety valve 303 and the secondary safety valve 304 exhaust simultaneously to relieve pressure and ensure safety. At the same time, the pressure alarm 302 will give an alarm prompt.

[0044] This specific embodiment is only an interpretation of the present utility model, and it does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A powder barrel automatic rapid air replenishment device, characterized in that: It comprises a powder barrel (1), and an air supply pipe (2) connected to the powder barrel (1), and the air supply pipe (2) is connected to a high-pressure air source (7); The air supply pipe (2) is provided with an air intake component (3) for controlling air intake, an air exhaust component (4) for exhaust, a pressure detection component (5) for detecting the pressure in the air supply pipe (2), and an oxygen content detection component (6) for detecting the oxygen content in the air supply pipe (2).

2. The automatic and rapid air-replenishing device for a powder barrel according to claim 1, characterized in that: The air intake assembly (3) comprises an air intake valve (101) arranged on the air supply pipe (2), and a first time relay (102) for controlling the opening and closing of the air intake valve (101).

3. The automatic and rapid air-replenishing device for a powder barrel according to claim 1, characterized in that: The exhaust component (4) comprises an exhaust valve (201) and a second time relay (202) for controlling the opening and closing of the exhaust valve (201).

4. The automatic rapid air replenishing device for a powder barrel according to claim 1, characterized in that: The pressure detection component (5) comprises an electronic pressure gauge (305) arranged on the air supply pipe (2).

5. The automatic and rapid air-replenishing device for a powder barrel according to claim 1, characterized in that: The oxygen content detection component (6) comprises an oxygen content detector (401) arranged on the air supply pipe (2).

6. The automatic and rapid air-replenishing device for a powder barrel according to claim 5, characterized in that: The oxygen content detection component (6) also includes an oxygen content alarm (402) connected to the oxygen content detector (401).

7. The automatic and rapid air-replenishing device for a powder barrel according to claim 1, characterized in that: The air supply pipe (2) is provided with a safety pressure relief assembly (9), and the safety pressure relief assembly (9) comprises a pressure relief valve group (306), a pressure sensor (301) for controlling the pressure relief valve group (306), and a pressure alarm (302) connected to the pressure sensor (301).

8. The automatic and rapid air-replenishing device for a powder barrel according to claim 7, characterized in that: The pressure relief valve group (306) further comprises a primary safety valve (303), and when the pressure in the air supply pipe (2) reaches a safety upper limit, the primary safety valve (303) opens.

9. The automatic rapid air-replenishing device for a powder barrel according to claim 8, characterized in that: The pressure relief valve group (306) further comprises a secondary safety valve (304), and when the pressure in the air supply pipe (2) reaches a safety limit, the primary safety valve (303) and the secondary safety valve (304) are opened simultaneously.

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