Anti-oxidation copper powder storage cabinet

Abstract

The utility model discloses an anti-oxidation copper powder storage cabinet which comprises a movable storage cabinet with a discharge valve at the bottom, the movable storage cabinet is provided with an air suction pump, the air inlet end of the air suction pump is communicated with an inner cavity of the movable storage cabinet, and an air outlet one-way valve is arranged at the air outlet end of the air suction pump. A feeding pipe is arranged at the upper end of the movable material storage cabinet, a feeding hopper is fixed to the upper end of the feeding pipe, a first electric ball valve and a second electric ball valve are arranged on the feeding pipe in an up-down mode, a transition cavity is formed between the first electric ball valve and the second electric ball valve, and the centrifugal material dispersing device further comprises a centrifugal material dispersing unit. A first electric ball valve, a second electric ball valve and a centrifugal material dispersing unit are additionally arranged, in the whole material storage process, the first electric ball valve and the second electric ball valve are alternately opened and closed, external gas can be effectively prevented from entering and exiting a material storage cavity, and gas of impurities in copper powder can overflow and be pumped away through the centrifugal material dispersing unit; and copper powder oxidation can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of copper powder storage, in particular to an anti-oxidation type copper powder storage cabinet. Background Art

[0002] Copper powder is an important raw material for industrial production and can be used to manufacture chemical tools, electrical tools, building materials and other industrial products.

[0003] In the production process of copper powder, copper powder needs to be stored. Our company usually uses storage cabinets for storage. In order to prevent the oxidation of copper powder in the storage cabinet, an air pump is usually installed on the storage cabinet to store the copper powder in a vacuum.

[0004] When operating the existing anti-oxidation storage cabinet, the dried copper powder is directly poured into the storage cabinet through a conveyor belt (on which the copper powder is in a piled state). After the pouring is completed, the feed port is sealed and the inner cavity of the storage cabinet is evacuated into a vacuum state by using an air pump to prevent the copper powder from rusting. However, the above operation has the following problems:

[0005] When the accumulated copper powder is poured into the inner cavity of the storage cabinet through the conveyor belt, some of the accumulated copper powder (including the agglomerated copper powder containing gas inside) will fall together as a whole. As the copper powder piles higher and higher in the inner cavity of the storage cabinet, the air mixed between the accumulated copper powder cannot be effectively extracted by the vacuum pump, which easily leads to oxidation of the internal copper powder;

[0006] Therefore, the present application provides an anti-oxidation copper powder storage cabinet to meet the needs. Utility Model Content

[0007] The purpose of the present application is to provide an anti-oxidation copper powder storage cabinet, which is used to solve the technical problem in the prior art that the air mixed between the accumulated copper powders cannot be effectively extracted by the vacuum pump, which easily leads to oxidation of the internal copper powder.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an anti-oxidation copper powder storage cabinet, comprising a mobile storage cabinet with a discharge valve at the bottom, an air pump whose air inlet end is connected to the inner cavity of the mobile storage cabinet is arranged on the mobile storage cabinet, an air outlet check valve is arranged on the air outlet end of the air pump, a feed pipe is arranged at the upper end of the mobile storage cabinet, and a feed funnel is fixed at the upper end of the feed pipe, a first electric ball valve and a second electric ball valve are arranged on the feed pipe in an upper and lower manner, a transition chamber is arranged between the first electric ball valve and the second electric ball valve, and a centrifugal bulk unit is also included, which is used to receive the copper powder discharged from the feed pipe and disperse the copper through the action of rotating centrifugal force;

[0009] The first electric ball valve, the second electric ball valve, the centrifugal bulk material unit and the vacuum pump are all electrically connected to a PLC controller disposed at the upper end of the mobile storage cabinet.

[0010] As a preferred implementation manner in this embodiment, the centrifugal bulk material unit includes a rotating cover rotatably connected to the lower end of the feed pipe, and the upper part of the rotating cover is a conical structure and hollow, and the lower part is a circular structure with a bottom seal, and the upper part is communicated with the lower inner cavity, and a plurality of spreading ports are circumferentially arranged on the outer wall of the lower part, and a transmission gear is fixedly sleeved on the outer wall of the upper part, and the transmission gear is gear-engaged with a driving gear, and the driving gear is fixedly connected to the output shaft of the driving motor installed on the mobile storage cabinet.

[0011] As a preferred implementation manner in this embodiment, a conical flow guide is provided at the bottom of the inner cavity of the lower part, and the axis of the conical flow guide is on a vertical axis with the axis of the upper part and the lower part.

[0012] As a preferred implementation manner in this embodiment, an annular tube is arranged at the top of the inner cavity of the mobile storage cabinet and located at the periphery of the rotating cover, and a plurality of exhaust pipes are circumferentially arranged at the lower end of the annular tube, and the lower end of the exhaust pipe is located above the spreading port, and the exhaust end of the annular tube is connected to the air inlet end of the exhaust pump.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] The utility model has a reasonable structure, and a first electric ball valve, a second electric ball valve and a centrifugal bulk material unit are additionally arranged. During the entire material storage process, the first electric ball valve and the second electric ball valve are opened and closed alternately, which can effectively prevent external gas from entering and exiting the material storage chamber during feeding. Moreover, through the centrifugal bulk material unit, gas of impurities inside the copper powder can overflow and be sucked away by an air pump, which can effectively prevent oxidation of the copper powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the partial cross-section structure;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the central rotating cover.

[0020] In the figure: 1. Mobile storage cabinet; 2. Vacuum pump; 3. Air outlet check valve; 4. Feed pipe; 5. Feed funnel; 6. First electric ball valve; 7. Second electric ball valve; 8. Discharge valve; 9. Rotating cover; 10. Transmission gear; 11. Drive motor; 12. Drive gear; 13. Spreading port; 14. Conical guide piece; 15. Ring pipe; 16. Air extraction pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-2 An anti-oxidation copper powder storage cabinet shown includes a mobile storage cabinet 1 with a discharge valve 8 at the bottom, an air pump 2 whose air inlet end is connected to the inner cavity of the mobile storage cabinet 1 is provided on the mobile storage cabinet 1, and an air outlet check valve 3 is provided on the air outlet end of the air pump 2. A feed pipe 4 is provided at the upper end of the mobile storage cabinet 1, and a feed funnel 5 is fixed to the upper end of the feed pipe 4. A first electric ball valve 6 and a second electric ball valve 7 are provided on the feed pipe 4 in an upper and lower manner, and a transition chamber is provided between the first electric ball valve 6 and the second electric ball valve 7. A centrifugal bulk unit is also included, which is used to receive the copper powder discharged from the feed pipe 4 and disperse the copper through the action of rotating centrifugal force;

[0023] The first electric ball valve 6 , the second electric ball valve 7 , the centrifugal bulk material unit and the vacuum pump 2 are all electrically connected to a PLC controller disposed at the upper end of the mobile material storage cabinet 1 .

[0024] When in use, the flow channel of the second electric ball valve 7 is controlled to open and the first electric ball valve 6 is closed, so that the transition chamber is connected to the inner cavity of the storage chamber of the mobile storage cabinet 1, and the vacuum pump 2 is controlled to evacuate the storage chamber and the inner cavity of the transition chamber, and the flow channel of the second electric ball valve 7 is closed. After completion, the dried copper powder is conveyed to the feeding funnel 5 by the conveyor belt. After the funnel 5 is full of copper powder, the first electric ball valve 6 can be opened to allow the copper powder in the feeding funnel 5 to fall into the transition chamber. When the transition chamber is full of copper powder (at this time, the feed port of the filter chamber is sealed by the accumulated copper powder to prevent outside air from entering the storage chamber, and the conveyor belt is constantly feeding into the feeding funnel 5), the first electric ball valve 6 is controlled to be closed, and the second electric ball valve 7 is closed. When the copper powder is opened, the copper powder will fall into the centrifugal bulk material unit, and the centrifugal force will scatter the copper powder and collide with the inner wall of the storage chamber, so that the agglomerated copper powder can be broken up and the gas inside the agglomerated copper powder can overflow, which is beneficial for the vacuum pump 2 to extract the gas mixed in the copper powder, thereby improving the anti-oxidation effect of the copper powder. When the copper powder in the transition chamber completely enters the centrifugal bulk material unit, the second electric ball valve 7 is closed and the first electric ball valve 6 is opened, and the copper powder in the feeding funnel 5 will enter the transition chamber again. During the entire storage process, the first electric ball valve 6 and the second electric ball valve 7 are opened and closed alternately, which can effectively prevent external gas from entering and exiting the storage chamber. After the storage is completed, the first electric valve 6, the second electric valve 7 and the vacuum pump 2 can be closed.

[0025] It should be noted that all electrical equipment works in an orderly manner under the control of the PLC controller.

[0026] As a preferred implementation in this embodiment, Figure 3 As shown, the centrifugal bulk material unit includes a rotating cover 9 rotatably connected to the lower end of the feed pipe 4, and the upper part of the rotating cover 9 is a conical structure and hollow, and the lower part is a circular structure with a bottom seal, and the upper part is communicated with the lower inner cavity, and a plurality of spreading ports 13 are circumferentially arranged on the outer wall of the lower part, and a transmission gear 10 is fixedly sleeved on the outer wall of the upper part, and the transmission gear 10 is gear-connected with a driving gear 12, and the driving gear 12 is fixedly connected to the output shaft of a driving motor 11 installed on the mobile storage cabinet 1.

[0027] The copper powder will fall into the rotating cover 9, which is driven by the cooperation of the driving motor 11 and the gear to rotate quickly. The copper powder is discharged from the bulk material port through the action of centrifugal force. The discharged copper powder will contact and collide with the inner wall of the storage chamber, which can break the agglomerated copper powder and make the gas inside the agglomerated copper powder overflow. The gas is extracted by the vacuum pump 2, which can effectively extract the gas contained in the copper powder and effectively prevent the copper powder from oxidation.

[0028] As a preferred implementation in this embodiment, Figure 4As shown, a conical flow guide 14 is provided at the bottom of the inner cavity of the lower part, and the axis of the conical flow guide 14 is on a vertical axis with the axis of the upper part and the lower part.

[0029] The conical guide member 14 can guide the material to each dispersing opening 13 arranged in a circumference, which is conducive to the rotating cover 9 to quickly scatter the copper powder.

[0030] As a preferred implementation in this embodiment, Figure 3 As shown, an annular tube 15 is arranged at the top of the inner cavity of the mobile storage cabinet 1 and at the periphery of the rotating cover 9, and a plurality of exhaust pipes 16 are circumferentially arranged at the lower end of the annular tube 15, and the lower end of the exhaust pipe 16 is located above the material spreading port 13, and the exhaust end of the annular tube 15 is connected to the air inlet end of the exhaust pump 2.

[0031] Since the rotating cover 9 disperses the copper powder in a circular shape, in order to ensure that the air is extracted in time, an annular tube is provided to extract the gas released from the copper powder in time.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An anti-oxidation copper powder storage cabinet, comprising a mobile storage cabinet (1) with a discharge valve (8) at the bottom, the mobile storage cabinet (1) is provided with an air pump (2) whose air inlet end is connected to the inner cavity of the mobile storage cabinet (1), the air outlet end of the air pump (2) is provided with an air outlet check valve (3), the upper end of the mobile storage cabinet (1) is provided with a feed pipe (4), and the upper end of the feed pipe (4) is fixed with a feed funnel (5), characterized in that: The feed pipe (4) is provided with a first electric ball valve (6) and a second electric ball valve (7) in an upper and lower arrangement, a transition chamber is provided between the first electric ball valve (6) and the second electric ball valve (7), and further comprises a centrifugal bulking unit for receiving copper powder discharged from the feed pipe (4) and dispersing the copper through the action of rotating centrifugal force; The first electric ball valve (6), the second electric ball valve (7), the centrifugal bulk material unit and the vacuum pump (2) are all electrically connected to a PLC controller provided at the upper end of the mobile material storage cabinet (1).

2. The anti-oxidation copper powder storage cabinet according to claim 1, characterized in that: The centrifugal bulk material unit comprises a rotating cover (9) rotatably connected to the lower end of the feed pipe (4), wherein the upper portion of the rotating cover (9) is a conical structure and is hollow, and the lower portion is a circular structure with a bottom seal, and the upper portion is in communication with the inner cavity of the lower portion, and a plurality of material spreading openings (13) are circumferentially arranged on the outer wall of the lower portion, and a transmission gear (10) is fixedly sleeved on the outer wall of the upper portion, and the transmission gear (10) is gear-engaged with a driving gear (12), and the driving gear (12) is fixedly connected to the output shaft of a driving motor (11) installed on the mobile storage cabinet (1).

3. The anti-oxidation copper powder storage cabinet according to claim 2, characterized in that: A conical flow guide (14) is provided at the bottom of the inner cavity of the lower part, and the axis of the conical flow guide (14) is on a vertical axis with the axis of the upper part and the lower part.

4. The anti-oxidation copper powder storage cabinet according to claim 2, characterized in that: An annular tube (15) is arranged at the top of the inner cavity of the mobile material storage cabinet (1) and at the periphery of the rotating cover (9), and a plurality of air extraction pipes (16) are arranged in a circle at the lower end of the annular tube (15), and the lower end of the air extraction pipe (16) is located above the material spreading port (13), and the air extraction end of the annular tube (15) is connected to the air inlet end of the air extraction pump (2).

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