Anti-wall-hanging measuring bin

Abstract

The utility model relates to an anti-wall-hanging measuring bin, and belongs to the technical field of measuring bins. The anti-wall-hanging measuring bin comprises a bin body, a main gas circuit and a branch gas circuit, the lower half portion of the bin body is in a cone shape which is gradually shrunk, the bin body is provided with a feeding port, a discharging port and a gas inlet, a fluidization mechanism is arranged on the bin body, a reverse blowing type respirator is arranged on the top of the bin body, and a weighing device is arranged on the peripheral wall of the bin body. The air inlet and the fluidization mechanism are both communicated with the main air path, the bypass air path is communicated with the main air path through the pressure regulating filter, and the bypass air path is communicated with the reverse blowing type respirator. According to the scheme provided by the utility model, the bypass gas path can be used for boosting the main gas path, so that the flowability of powder is improved, and the problems of retention, blockage and the like of the powder are solved.

Description

Technical Field

[0001] This utility model relates to the field of metering chamber technology, and in particular to an anti-wall-hanging metering chamber. Background Technology

[0002] In the industrial production of ternary lithium battery cathode materials, raw materials typically require metering. In existing technologies, the metering process usually involves: first, storing the raw materials in a feeding hopper; then, feeding the materials into a metering hopper, which precisely measures the required weight of material according to a set value. The metering hopper is equipped with a stirring paddle to uniformly mix the materials during the metering process. Next, the materials enter a metering discharge device through the conical bottom of the metering hopper, and finally, the metering discharge device precisely discharges the material according to a preset discharge quantity. However, because the materials are fine, loose powders, they often clump and become blocked at the conical bottom of the metering hopper, making it difficult for the materials to enter the metering discharge device and achieve accurate discharge. Utility Model Content

[0003] To overcome the problems existing in related technologies, this utility model provides an anti-sticking metering chamber that can improve the flowability of powder by using a side branch air passage to assist the main air passage, thereby solving problems such as powder retention and blockage.

[0004] This utility model provides an anti-wall-sticking metering bin, including a bin, a main air passage, and a side air passage. The lower half of the bin is a gradually narrowing cone shape. The bin has a feed inlet, a discharge outlet, and an air inlet. A fluidizing mechanism is provided on the bin. A backflush breather is provided on the top of the bin. A weighing device is provided on the outer peripheral wall of the bin. The air inlet and the fluidizing mechanism are both connected to the main air passage. The side air passage is connected to the main air passage through a pressure regulating filter and is connected to the backflush breather.

[0005] In some embodiments, the top of the hopper is also provided with a first pressure sensor, a safety valve, a first pneumatic butterfly valve and a pressure hand hole, the first pneumatic butterfly valve is connected to the feed inlet, and a first check valve is also provided between the air inlet and the main air circuit.

[0006] In some embodiments, the main gas path includes a main pipeline, a first fluidizing branch and a second fluidizing branch. The inlet end of the main gas pipeline is provided with a second one-way valve. The first fluidizing branch is connected to the main gas pipeline through a first speed regulating valve and a second one-way valve. The second fluidizing branch is connected to the main gas pipeline through a second speed regulating valve and a third one-way valve.

[0007] In some embodiments, the fluidization mechanism includes a fluidizer and a fluidized discharge device. The fluidizer is disposed on a hopper, and the air outlet of the fluidizer is located inside the hopper. The fluidizer is connected to a first fluidization branch. The fluidized discharge device is connected to a discharge port and is connected to a second fluidization branch.

[0008] In some embodiments, the fluidized discharge device includes a fluidizing elbow and a pneumatic ball valve. The air inlet of the fluidizing elbow is connected to the main air circuit, and the fluidizing elbow is connected to the discharge port. The pneumatic ball valve is connected to the fluidizing elbow through a flange, and the flange is connected to the discharge pipe. The discharge pipe is equipped with a third speed regulating valve, a fourth check valve, and a second pressure sensor.

[0009] In some embodiments, the main air path further includes a first manual ball valve and a second manual ball valve, wherein the first manual ball valve is located between the air inlet and the main air pipeline, and the second manual ball valve is located between the second check valve and the main air pipeline.

[0010] In some embodiments, the side airway includes a secondary airway and a first branch and a second branch connected to the secondary airway. The secondary airway is connected to the main airway. The first branch is provided with an airway connector for connecting a backflush respirator. The pressure regulating filter is disposed on the secondary airway.

[0011] In some embodiments, the second branch is provided with a second pneumatic butterfly valve and a third manual ball valve, both of which are used to control the on / off state and opening degree of the second branch and the auxiliary gas pipeline.

[0012] In some embodiments, the bypass gas path further includes a third branch, which is connected to the auxiliary gas pipeline and is also equipped with a solenoid valve and an air inlet.

[0013] The hopper is equipped with an air hammer, which is connected to an air inlet.

[0014] In some embodiments, the weighing device includes a plurality of lugs evenly distributed on the outer periphery of the hopper, each lug being equipped with a weighing sensor, the weighing sensors being used to fix the hopper, and the plurality of weighing sensors being located on the same horizontal plane.

[0015] The technical solution provided by this utility model can include the following beneficial effects:

[0016] The anti-fouling metering hopper provided by this utility model achieves fluidization of the powder within the hopper through the main air path. When powder blockage or stagnation occurs, an additional air source can be provided to the main air path through a bypass air path, increasing the air delivery volume of the main air path. This allows the bypass air path to alter the airflow within the hopper during blockages or stagnation, thereby increasing the fluidization rate of the powder and improving its flowability. A back-flushing breather is used for dust removal within the hopper, and compressed air from the bypass air path can blow off dust adsorbed on the filter surface, restoring the breather's filtration function and enabling continuous operation. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0018] Figure 1 This is a schematic diagram of the anti-wall-hanging metering chamber shown in an embodiment of the present invention;

[0019] Figure 2 This is a top view of the anti-wall-hanging metering chamber shown in an embodiment of this utility model;

[0020] Figure 3 This is a side view of the anti-wall-hanging metering chamber shown in an embodiment of the present invention;

[0021] Figure 4 This is another side view of the anti-wall-hanging metering chamber shown in this embodiment of the utility model;

[0022] Figure 5 This is an assembly diagram of the main air passage and the side air passage shown in an embodiment of the present invention.

[0023] Figure label:

[0024] 1. Hopper; 10. Feed inlet; 11. Discharge outlet; 12. Air inlet; 13. Fluidization mechanism; 130. Fluidized discharge device; 1300. Fluidized elbow; 1301. Pneumatic ball valve; 1302. Flange; 1303. Discharge pipe; 1304. Third speed control valve; 1305. Fifth check valve; 1306. Second pressure sensor; 14. Backflush breather; 15. Weighing device; 16. First pressure sensor; 17. Safety valve; 18. Pressure manhole; 19. First check valve; 19a. Air hammer;

[0025] 2. Main gas path; 20. Main gas pipeline; 21. First fluidization branch; 22. Second fluidization branch; 23. Second check valve; 24. First speed control valve; 25. Third check valve; 26. Second speed control valve; 27. Fourth check valve; 28. First manual ball valve; 29. ​​Second manual ball valve;

[0026] 3. Bypass gas line; 30. Auxiliary gas pipeline; 31. First branch; 32. Second branch; 33. Gas pipe connector; 34. Second pneumatic butterfly valve; 35. Third manual ball valve; 36. Third branch; 37. Solenoid valve; 38. Air inlet;

[0027] 4. Pressure regulating filter. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0029] In the description of the utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] The terms used in this invention, such as “above,” “over,” “below,” and “under,” indicating spatial relative position, are for ease of description to depict the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of spatial relative position may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” other units or features would be “above” other units or features. Therefore, the exemplary term “under” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein shall be interpreted accordingly. In this invention, unless otherwise expressly specified and limited, the terms “set,” “socket,” “connect,” “through,” “plug,” etc., shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral part; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; as a connection within two elements or an interaction between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 5As shown, the present invention provides an anti-wall-hanging metering bin, including a bin 1, a main air passage 2, and a side air passage 3. The lower half of the bin 1 is a gradually narrowing cone shape. The bin 1 has a feed inlet 10, a discharge outlet 11, and an air inlet 12. A fluidizing mechanism 13 is provided on the bin 1. A backflush breather 14 is provided on the top of the bin 1. A weighing device 15 is provided on the outer peripheral wall of the bin 1. The air inlet 12 and the fluidizing mechanism 13 are both connected to the main air passage 2. The side air passage 3 is connected to the main air passage 2 through a pressure regulating filter 4. The side air passage 3 is connected to the backflush breather 14.

[0034] The anti-fouling metering bin provided by this utility model achieves the fluidization of powder in bin 1 through the main air passage 2. When powder blockage or stagnation occurs, an additional air source can be provided to the main air passage 2 through the side air passage 3, increasing the air delivery volume of the main air passage 2. When powder blockage or stagnation occurs, the airflow in bin 1 can be changed through the side air passage 3, increasing the fluidization speed of the powder in bin 1, thereby improving the flowability of the powder. Furthermore, the back-flushing breather 14 is used to remove dust from bin 1, and the compressed air through the side air passage 3 can blow off the dust adsorbed on the filter surface, restoring the filtration function of the breather and enabling production without stopping the machine.

[0035] Furthermore, the top of the aforementioned silo 1 is also equipped with a first pressure sensor 16, a safety valve 17, a first pneumatic butterfly valve, and a pressure hand hole. The first pneumatic butterfly valve is connected to the feed inlet 10, and a first one-way valve 19 is also provided between the air inlet 12 and the main air passage 2.

[0036] In actual production, when the first pressure sensor 16 detects that the air pressure in the silo 1 exceeds the set value, it controls the safety valve 17 to open, allowing some of the gas in the silo 1 to be discharged through the safety valve 17, thus preventing the air pressure in the silo 1 from becoming too high and causing safety hazards. The first one-way valve 19 between the air inlet 12 and the main air passage 2 ensures that the air in the backflush breather 14 will not flow back and transport the powder into the main air passage 2, contaminating the components therein.

[0037] In a preferred embodiment, the main gas path 2 includes a main pipeline, a first fluidizing branch 21, and a second fluidizing branch 22. The inlet end of the main gas pipeline 20 is provided with a second one-way valve 23. The first fluidizing branch 21 is connected to the main gas pipeline 20 through a first speed regulating valve 24 and a third one-way valve 25. The second fluidizing branch 22 is connected to the main gas pipeline 20 through a second speed regulating valve 26 and a fourth one-way valve 27.

[0038] In a preferred embodiment, the fluidization mechanism 13 includes a fluidizer and a fluidized discharge device 130. The fluidizer is disposed on the hopper 1, and the air outlet of the fluidizer is located inside the hopper 1. The fluidizer is connected to the first fluidization branch 21. The fluidized discharge device 130 is connected to the discharge port 11 and is connected to the second fluidization branch 22.

[0039] Furthermore, the fluidized discharge device 130 includes a fluidizing elbow 1300 and a pneumatic ball valve 1301. The air inlet of the fluidizing elbow 1300 is connected to the main air passage 2, and the fluidizing elbow 1300 is connected to the discharge port 11. The pneumatic ball valve 1301 is connected to the fluidizing elbow 1300 through a flange 1302. The flange 1302 is connected to the discharge pipe 1303. The discharge pipe 1303 is equipped with a third speed regulating valve 1304, a fifth one-way valve 1305, and a second pressure sensor 1306.

[0040] In a preferred embodiment, the main air passage 2 further includes a first manual ball valve 28 and a second manual ball valve 29, wherein the first manual ball valve 28 is located between the air inlet 12 and the main air pipeline 20, and the second manual ball valve 29 is located between the second check valve 23 and the main air pipeline 20.

[0041] In a preferred embodiment, the aforementioned side air passage 3 includes a secondary air pipe 30 and a first branch 31 and a second branch 32 connected to the secondary air pipe 30. The secondary air pipe 30 is connected to the main air passage 2. The first branch 31 is provided with an air pipe connector 33 for connecting a backflush breather 14. The pressure regulating filter 4 is disposed on the secondary air pipe 30. Specifically, the first branch 31 is connected to an air supply device, such as an air compressor or a high-pressure storage tank. The first branch 31 is used to supply compressed gas to the backflush breather 14 so that the backflush breather 14 can realize the backflush function. On the other hand, it serves as an auxiliary air source for the main air passage 2, working together with the second branch 32 to increase the air supply volume of the main air passage 2, ensuring that the main air passage 2 can realize the anti-wall adhesion function of the silo 1.

[0042] Furthermore, the second branch 32 is equipped with a second pneumatic butterfly valve 34 and a third manual ball valve 35. Both the second pneumatic butterfly valve 34 and the third manual ball valve 35 are used to control the on / off connection and opening degree between the second branch 32 and the auxiliary air pipeline 30. The second branch 32 assists the main air pipeline 2. When the pressure in the main air pipeline 2 is insufficient to achieve rapid fluidization of the powder, the third manual ball valve 35 can be manually controlled to open or adjust the air pressure supplied from the second branch 32 to the main air pipeline 2, ensuring that the main air pipeline 2 maintains sufficient gas pressure for air delivery while achieving powder fluidization.

[0043] In a preferred embodiment, the above-mentioned bypass gas path 3 further includes a third branch 36, which is connected to the auxiliary gas pipeline 30. The third branch 36 is also provided with a solenoid valve 37 and an air inlet 38.

[0044] The hopper 1 is equipped with an air hammer 19a, which is connected to an air inlet 38.

[0045] Specifically, an air hammer 19a is installed in the lower half of the hopper 1. There can be two or more air hammers 19a. The air hammers 19a are evenly distributed on the hopper 1. When the weight on the weighing sensor continues to rise, the air hammers 19a are turned on. The air hammers 19a will gently hammer the side wall of the lower half of the hopper 1, vibrating the powder material attached to the side wall of the hopper 1. In practice, the operator can drive the air hammers 19a according to the external control panel or set the air hammers 19a to start automatically after the equipment has been running for a period of time.

[0046] Furthermore, the aforementioned weighing device 15 includes a plurality of lugs evenly distributed on the outer periphery of the hopper 1. Each of the lugs is equipped with a weighing sensor, which is used to fix the hopper 1. The plurality of weighing sensors are located on the same horizontal plane. The weighing sensor adopts SWB505, and a weighing plate is provided on its top. The weighing plate is provided with a plurality of bolt holes, and the lugs are bolted to the weighing plate.

[0047] In summary, when using this anti-fouling metering silo, the main air path 2 serves as the primary air source for resolving powder blockage. When the powder has high viscosity or weight, the side air path 3 can pressurize the main air path 2, increasing the gas delivery volume. The first fluidization branch 21 fluidizes the powder on the inner wall of the cone-shaped lower half of the adsorption silo 1, and the powder is shaken off by the air hammer 19a. Compressed air is injected into the fluidization elbow 1300 of the bottom outlet 11 of the silo 1 through the second fluidization branch 22, which effectively solves the problem of powder blockage and suspension at the outlet 11. By installing the first pressure sensor 16 and the back-blowing breather 14 on the silo 1, the internal pressure of the metering silo is kept stable, and dust leakage inside the silo 1 can be effectively prevented. Combined with the weighing sensor, the weight of the powder is accurately measured, resulting in high production efficiency, high discharge accuracy, and no pollution.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A wall-mounted metering chamber, characterized in that, The hopper includes a hopper (1), a main air passage (2), and a side air passage (3). The lower half of the hopper (1) is a gradually narrowing cone shape. The hopper (1) has a feed inlet (10), a discharge outlet (11), and an air inlet (12). The hopper (1) is equipped with a fluidizing mechanism (13). The top of the hopper (1) is equipped with a backflush breather (14). The outer peripheral wall of the hopper (1) is equipped with a weighing device (15). The air inlet (12) and the fluidizing mechanism (13) are both connected to the main air passage (2). The side air passage (3) is connected to the main air passage (2) through a pressure regulating filter (4). The side air passage (3) is connected to the backflush breather (14).

2. The anti-wall-hanging metering chamber according to claim 1, characterized in that, The top of the hopper (1) is also provided with a first pressure sensor (16), a safety valve (17), a first pneumatic butterfly valve and a pressure hand hole (18). The first pneumatic butterfly valve is connected to the feed inlet (10). The air inlet (12) is also provided with a first check valve (19) between it and the main air passage (2).

3. The anti-wall-hanging metering chamber according to claim 1, characterized in that, The main gas path (2) includes a main gas pipeline (20), a first fluidizing branch (21) and a second fluidizing branch (22). The inlet end of the main gas pipeline (20) is provided with a second one-way valve (23). The first fluidizing branch (21) is connected to the main gas pipeline (20) through a first speed regulating valve (24) and a third one-way valve (25). The second fluidizing branch (22) is connected to the main gas pipeline (20) through a second speed regulating valve (26) and a fourth one-way valve (27).

4. The anti-wall-hanging metering chamber according to claim 3, characterized in that, The fluidization mechanism (13) includes a fluidizer and a fluidized discharge device (130). The fluidizer is disposed on the silo (1) and the air outlet of the fluidizer is located inside the silo (1). The fluidizer is connected to the first fluidization branch (21). The fluidized discharge device (130) is connected to the discharge port (11) and is connected to the second fluidization branch (22).

5. The anti-wall-hanging metering chamber according to claim 4, characterized in that, The fluidized discharge device (130) includes a fluidized elbow (1300) and a pneumatic ball valve (1301). The air inlet of the fluidized elbow (1300) is connected to the main air passage (2), and the fluidized elbow (1300) is connected to the discharge port (11). The pneumatic ball valve (1301) is connected to the fluidized elbow (1300) through a flange (1302). The flange (1302) is connected to the discharge pipe (1303). The discharge pipe (1303) is equipped with a third speed regulating valve (1304), a fifth one-way valve (1305), and a second pressure sensor (1306).

6. The anti-wall-hanging metering chamber according to claim 3, characterized in that, The main air passage (2) also includes a first manual ball valve (28) and a second manual ball valve (29). The first manual ball valve (28) is located between the air inlet (12) and the main air pipeline (20), and the second manual ball valve (29) is located between the second check valve (23) and the main air pipeline (20).

7. The anti-wall-hanging metering chamber according to claim 1, characterized in that, The side air passage (3) includes a secondary air passage (30) and a first branch (31) and a second branch (32) connected to the secondary air passage (30). The secondary air passage (30) is connected to the main air passage (2). The first branch (31) is provided with an air pipe connector (33) for connecting a backflush respirator (14). The pressure regulating filter (4) is installed on the secondary air passage (30).

8. The anti-wall-hanging metering chamber according to claim 7, characterized in that, The second branch (32) is equipped with a second pneumatic butterfly valve (34) and a third manual ball valve (35). The second pneumatic butterfly valve (34) and the third manual ball valve (35) are used to control the opening and closing of the second branch (32) and the auxiliary gas pipeline (30).

9. The anti-wall-hanging metering chamber according to claim 8, characterized in that, The side gas path (3) also includes a third branch (36), which is connected to the auxiliary gas pipeline (30). The third branch (36) is also equipped with a solenoid valve (37) and an air inlet (38). The hopper (1) is equipped with an air hammer (19a), which is connected to an air inlet (38).

10. The anti-wall-hanging metering chamber according to claim 1, characterized in that, The weighing device (15) includes several lugs evenly distributed on the outer periphery of the silo (1). Each of the lugs is equipped with a weighing sensor. The weighing sensors are used to fix the silo (1). The weighing sensors are located on the same horizontal plane.

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