Powder spraying tank capable of uniformly spraying materials

Abstract

The utility model provides a powder spraying tank capable of uniformly spraying materials. The powder spraying tank comprises a tank body, a tank cover, an anti-blocking unit, an airflow unit and a powder spraying unit, the tank body is of a double-layer structure, desiccant is filled between the inner tank body and the outer tank body, a discharge port is formed in the bottom of the inner tank body, and breathable micropores are formed in the side wall; the tank cover is detachable and is provided with a charging port and a safety valve port; the anti-caking unit comprises a driving device, a stirring device arranged in the inner cavity of the inner tank body and driven by the driving device, and a vibration motor arranged on the outer side wall of the bottom of the inner tank body; the airflow unit comprises an airflow distribution assembly at the bottom of the inner tank body and a butt joint air pipe assembly which is connected with the airflow distribution assembly and extends to the outer side of the inner tank body; the powder spraying unit comprises a powder spraying three-way pipe connected with the discharging port, an air supplementing pipe assembly connected with one end of the powder spraying three-way pipe and a powder spraying head connected with the other end of the powder spraying three-way pipe. The powder spraying tank disclosed by the utility model has moisture-proof, anti-caking and anti-blocking functions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to powder conveying equipment field, especially be related to a spray powder tank that can even spray material. BACKGROUND

[0002] For the traditional lower discharge spray powder tank, in the powder spraying process, the powder flowability is poor, deliquescence or internal caking, etc., leading to uneven spraying of material. In the prior art, the bottom of the tank is provided with a vulcanization plate or a stirring device to solve the problem of caking and powder blockage, but such measures have limited effect, especially the moisture-proof measures are insufficient. When moisture enters the tank body, it cannot be discharged, which can cause the powder to deliquesce, thereby aggravating the powder caking and blocking the outlet, causing uneven powder spraying. SUMMARY

[0003] Therefore, to solve the above technical problems, the utility model provides a spray powder tank with a reasonable structure design, good moisture-proof, anti-caking and anti-blocking effect, and finally realizes even spraying of material.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] A spray powder tank capable of even spraying material, comprising:

[0006] A tank body, the tank body is a double-layer structure, comprising an inner tank body and an outer tank body, a cavity between the inner tank body and the outer tank body is filled with a drying agent; the inner tank body is provided with a discharge port at the bottom, and a plurality of air permeable micropores in communication with the cavity are distributed on the side wall of the inner tank body;

[0007] A tank cover, the tank cover is detachably covered on the top of the tank body, and the tank cover is provided with a charging port and a safety valve port in communication with the inner cavity of the inner tank body;

[0008] An anti-caking unit, the anti-caking unit comprises a driving device provided on the tank cover, a stirring device driven by the driving device provided in the inner cavity of the inner tank body, and a vibration motor provided on the outer side wall of the bottom of the inner tank body;

[0009] An air flow unit, the air flow unit comprises an air flow distribution assembly provided at the bottom of the inner cavity of the inner tank body, and a butt joint air pipe assembly connected with the air flow distribution assembly and extending to the outer side of the side wall of the inner tank body;

[0010] A powder spraying unit, the powder spraying unit comprises a powder spraying tee pipe connected with the discharge port, a gas supplement pipe assembly connected with one end of the powder spraying tee pipe, and a powder spraying head connected with the other end of the powder spraying tee pipe.

[0011] The inner tank body is used for containing powder. When the tank cover is opened or not tightly sealed, moisture-containing air enters the inner tank body, causing the powder to deliquesce and agglomerate. The double-layer tank body is filled with desiccant between the two layers. The inner tank body is provided with air-permeable micropores on the tank wall, so that the moisture in the inner tank body is absorbed by the desiccant between the two layers through the air-permeable micropores, effectively removing the moisture and preventing deliquescence. The anti-caking unit stirs the powder through a stirring device, and cooperates with the airflow unit to fluidize the powder, so as to avoid powder agglomeration and pipeline blockage, and ensure that the powder is uniformly fed into the powder spraying unit. The optimized air supplement pipe assembly in the powder spraying unit uniformly sprays the powder through the powder spraying head.

[0012] Further, the bottom of the inner tank body is a reverse cone, and a circle of lap plates is arranged on the outer side wall of the inner tank body at the upper end of the air-permeable micropores in the circumferential direction. A circle of connecting flanges one is arranged on the lower end of the outer side wall of the inner tank body in the circumferential direction. A circle of support plates is arranged on the inner side wall of the outer tank body at the upper end in the circumferential direction. A circle of connecting flanges two is arranged on the bottom end of the outer tank body in the circumferential direction. The inner tank body is detachably arranged in the inner cavity of the outer tank body, and the lap plates are lapped on the support plates. The connecting flanges one and the connecting flanges two are detachably fixed by bolts.

[0013] The inner tank body and the outer tank body are detachably connected, and are detachably fixed by the lap plates and the support plates, the connecting flanges one and the connecting flanges two. Sealing pads are arranged at the contact positions of the connecting flanges one and the connecting flanges two to prevent moisture invasion. The cavity formed between the inner tank body and the outer tank body is used for containing the desiccant.

[0014] Further, the top end of the side wall of the outer tank body is provided with a desiccant feeding port communicating with the cavity, and the top end of the side wall of the outer tank body is provided with a desiccant discharge port communicating with the cavity. A sealing cover is detachably arranged on the desiccant feeding port and the desiccant discharge port.

[0015] The outer tank body is provided with the desiccant feeding port and the desiccant discharge port, so that the desiccant can be easily replaced.

[0016] Further, the tank cover includes an inner tank cover and an outer tank cover. The top of the outer tank body is higher than the top of the inner tank body. The inner tank cover is arranged on the top of the inner tank body, and the outer tank cover is arranged on the top of the outer tank body by bolt fixing and is pressed on the inner tank cover. Sealing pads are arranged between the inner tank cover and the inner tank body and between the outer tank cover and the outer tank body. The safety valve port is arranged on the inner tank cover, and the outer tank cover is provided with through holes for the feeding port and the safety valve port to protrude.

[0017] The structure of two tank covers is adopted. The inner tank cover seals the inner tank body, and the outer tank cover seals the outer tank body and applies pressure to the inner tank cover, thereby ensuring the tightness between the inner tank cover and the inner tank body.

[0018] Further, the driving device is installed on the top of the outer tank cover, and the inner tank cover is provided with a through hole for the output docking end of the driving device to pass through; the stirring device comprises a stirring rod and helical blades arranged on the stirring rod; the top end of the stirring rod is connected with the output docking end of the driving device through a connecting piece.

[0019] The stirring device and the driving device are detachably connected through the connecting piece, facilitating the disassembly and maintenance in the later period; the stirring rod rotates under the action of the driving device, the surface of the helical blade is sprayed with a polytetrafluoroethylene coating to reduce adhesion, the helical blade stirs the powder, scatters the agglomerates, and avoids agglomeration.

[0020] Further, the airflow distribution assembly comprises a conical airflow distribution cap arranged directly above the discharge port, a plurality of annular airflow distribution pipes arranged along the inner side wall of the bottom of the inner tank body in a circumferential direction around the outer side of the conical airflow distribution cap, and a connecting air pipe connecting the annular airflow distribution pipes; the conical airflow distribution cap is internally hollow, and a plurality of obliquely arranged air holes are distributed on the conical airflow distribution cap; the side of the annular airflow distribution pipe facing the center of the inner tank body is provided with a plurality of obliquely arranged air holes; the conical airflow distribution cap and the annular airflow distribution pipe are connected with the docking air pipe assembly.

[0021] Air is sent into the conical airflow distribution cap and the annular airflow distribution pipe by the docking air pipe assembly, and then sprayed out through the air holes to form uniform upward airflow, so that the powder is fluidized, agglomeration is avoided, and the powder is easily discharged from the discharge port.

[0022] Further, the docking air pipe assembly comprises a docking pipe, a connecting head, a transition pipe one and a gas filtering assembly one; one end of the docking pipe is connected with the conical airflow distribution cap and the annular airflow distribution pipe, the other end passes through the side wall of the bottom of the inner tank body and is connected with one end of the connecting head fixed on the outer side wall of the inner tank body, the other end of the connecting head is detachably connected with the transition pipe one, the gas filtering assembly one is detachably installed on the pipeline of the transition pipe one, and the other end of the transition pipe one is used for connecting with an external gas supply end.

[0023] The transition pipe one is externally connected with a gas pump provided with a flow control device, air enters the gas filtering assembly one through the transition pipe one, impurities and moisture in the air are filtered out, dry and clean gas enters the docking pipe, and then is distributed into the conical airflow distribution cap and the annular airflow distribution pipe.

[0024] Further, the air supplementing pipe assembly comprises a transition pipe two connected with one end of the powder spraying three-way pipe and a gas filtering assembly two installed on the pipeline of the transition pipe two; the other end of the transition pipe two is used for connecting with an external gas supply end.

[0025] The transition pipe two is externally connected with a gas pump with a flow control device, air enters the gas filtering assembly one through the transition pipe two, and impurities and moisture in the air are filtered out, dry and clean gas impacts the powder in the powder injection tee pipe through the discharge port, and the powder is finally uniformly sprayed out by the powder injection head.

[0026] Compared with the prior art, the powder injection tank capable of uniformly spraying powder has the following advantages:

[0027] (1) The powder injection tank capable of uniformly spraying powder utilizes a double-layer tank body, the two layers are filled with a drying agent, and air-permeable micropores are arranged on the tank wall of the inner tank body, so that the moisture in the inner tank body can be absorbed by the drying agent between the two layers through the air-permeable micropores, the moisture is effectively removed, and deliquescence and caking are prevented; the powder is stirred by the stirring device, and the powder is fluidized by cooperating with the airflow unit, so that the powder is prevented from caking and blocking the pipeline, the powder is uniformly fed into the powder injection unit, and the powder is uniformly sprayed out by the powder injection head under the optimization of the air supplement pipe assembly in the powder injection unit;

[0028] (2) The inner tank body and the outer tank body are detachably connected, so that maintenance and cleaning in the later period are facilitated; the outer tank body is provided with a drying agent feeding port and a drying agent discharge port, so that the drying agent can be replaced; the inner tank body is sealed by the inner tank cover, the outer tank body is sealed by the outer tank cover, and the inner tank cover is pressed, so that the tightness between the inner tank cover and the inner tank body is ensured, and the moisture is prevented from entering;

[0029] (3) The stirring device and the vibration motor can effectively prevent the powder from caking and ensure the loose of the powder; the conical airflow distribution cap and the annular airflow distribution pipe can form uniform upward airflow, so that the powder is fluidized and uniformly discharged; and the air supplement pipe assembly can optimize the powder injection effect and improve the uniformity and dispersity. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application, and do not constitute an inappropriate limitation on the present application. In the drawings:

[0031] Figure 1 The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application, and do not constitute an inappropriate limitation on the present application. In the drawings:

[0032] Legend of the reference signs:

[0033] 1-inner tank body, 2-outer tank body, 3-dry agent, 4-air-permeable microporous, 5-dry agent feeding port, 6-dry agent discharge port, 7-sealing cover, 8-discharge port, 9-lap plate, 10-connection flange one, 11-supporting plate, 12-connection flange two, 13-inner tank cover, 14-outer tank cover, 15-feeding port 1, 16-safety valve port, 17-driving device, 18-stirring device, 19-vibration motor, 20-conical air flow distribution cap, 21-annular air flow distribution pipe, 22-connection air pipe, 23-air hole, 24-butting pipe, 25-connection head, 26-transition pipe one, 27-gas filter assembly one, 28-powder spraying tee pipe, 29-powder spraying head, 30-transition pipe two, 31-filter assembly two. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0038] As shown in the drawings, a powder spraying tank capable of uniform powder spraying includes a tank body, a tank cover, an anti-caking unit, an air flow unit, and a powder spraying unit. Figure 1

[0039] ​The tank body is a double-layer structure, comprising an inner tank body 1 and an outer tank body 2, and a cavity between the inner tank body 1 and the outer tank body 2 is filled with a desiccant 3; a plurality of air-permeable micropores 4 in communication with the cavity are distributed on the side wall of the inner tank body 1, a desiccant adding port 5 in communication with the cavity is arranged at the top end of the side wall of the outer tank body 2, a desiccant discharging port 6 in communication with the cavity is arranged at the top end of the side wall of the outer tank body 2, and a sealing cover 7 is detachably arranged on the desiccant adding port 5 and the desiccant discharging port 6; the bottom of the inner tank body 1 is in the shape of an inverted cone, and the bottom is provided with a discharge port 8; a ring of overlapping plates 9 is arranged on the outer side wall of the inner tank body 1 at the upper end of the air-permeable micropores 4 in the circumferential direction, and a ring of connecting flanges one 10 is arranged on the outer side wall of the inner tank body 1 at the lower end in the circumferential direction; a ring of support plates 11 is arranged on the inner side wall of the outer tank body 2 at the upper end in the circumferential direction, and a ring of connecting flanges two 12 is arranged on the bottom of the outer tank body 2 in the circumferential direction; the inner tank body 1 is detachably arranged in the inner cavity of the outer tank body 2, and the overlapping plates 9 are overlapped on the support plates 11, and the connecting flanges one 10 and the connecting flanges two 12 are detachably fixed by bolts;

[0040] The tank cover comprises an inner tank cover 13 and an outer tank cover 14; the top of the outer tank body 2 is higher than the top of the inner tank body 1; the inner tank cover 13 is arranged on the top of the inner tank body 1, and the outer tank cover 14 is arranged on the top of the outer tank body 2 by bolt fixation and is pressed on the inner tank cover 13; sealing pads are arranged between the inner tank cover 13 and the inner tank body 1 and between the outer tank cover 14 and the outer tank body 2; the inner tank cover 13 is provided with a charging port 15 and a safety valve port 16 in communication with the inner cavity of the inner tank body 1, and the outer tank cover 14 is provided with through holes for the charging port 15 and the safety valve port 16 to extend out;

[0041] The anti-caking unit comprises a driving device 17 arranged on the tank cover, a stirring device 18 arranged in the inner cavity of the inner tank body 1 and driven by the driving device 17, and a vibration motor 19 arranged on the outer side wall of the bottom of the inner tank body 1; the driving device 17 is mounted on the top of the outer tank cover 14, and the inner tank cover 13 is provided with a through hole for the output docking end of the driving device 17 to pass through; the stirring device 18 comprises a stirring rod and helical blades arranged on the stirring rod; the top end of the stirring rod is connected with the output docking end of the driving device 17 through a connecting piece;

[0042] The air flow unit comprises an air flow distribution assembly arranged at the bottom of the inner cavity of the inner tank body 1, and a docking air pipe assembly connected with the air flow distribution assembly and extending to the outside of the side wall of the inner tank body 1; the air flow distribution assembly comprises a conical air flow distribution cap 20 arranged directly above the discharge port 8, a plurality of annular air flow distribution pipes 21 arranged along the circumferential direction of the inner side wall of the bottom of the inner tank body 1 around the outside of the conical air flow distribution cap 20, and connecting air pipes 22 connected with the annular air flow distribution pipes 21; the conical air flow distribution cap 20 is internally hollow, and a plurality of inclined air holes 23 are distributed on the conical air flow distribution cap 20; the side of the annular air flow distribution pipe 21 facing the center of the inner tank body 1 is provided with a plurality of inclined air holes 23; the docking air pipe assembly comprises a docking pipe 24, a connecting head 25, a transition pipe I 26 and a gas filtering assembly I 27; one end of the docking pipe 24 is connected with the conical air flow distribution cap 20 and the annular air flow distribution pipe 21, and the other end of the docking pipe 24 penetrates through the bottom side wall of the inner tank body 1 and is connected with one end of the connecting head 25 fixed on the outer side wall of the inner tank body 1, the other end of the connecting head 25 is detachably connected with the transition pipe I 26, the gas filtering assembly I 27 is detachably arranged on the pipeline of the transition pipe I 26, and the other end of the transition pipe I 26 is used for being connected with an external gas supply end.

[0043] The powder spraying unit comprises a powder spraying tee pipe 28 connected with the discharge port 8, a gas supplement pipe assembly connected with one end of the powder spraying tee pipe 28, and a powder spraying head 29 connected with the other end of the powder spraying tee pipe 28; the gas supplement pipe assembly comprises a transition pipe II 30 connected with one end of the powder spraying tee pipe 28 and a gas filtering assembly II 31 arranged on the pipeline of the transition pipe II 30; and the other end of the transition pipe II 30 is used for being connected with an external gas supply end.

[0044] The working process of the powder spraying tank capable of uniformly spraying powder is as follows:

[0045] The powder is added into the inner tank body 1 through the feeding port 15, the feeding port 15 is closed after the feeding is completed, the moisture in the inner tank body 1 is absorbed by the drying agent 3 through the air permeable microporous hole 4, the powder is stirred by the stirring device 18 to prevent caking, the vibration motor 19 intermittently vibrates to assist in loosening the powder and eliminating local caking, the transition pipe I 26 is externally connected with a gas pump provided with a flow control device, air enters the gas filtering assembly I 27 through the transition pipe I 26, impurities and moisture in the air are filtered out, dry and clean gas enters the docking pipe 24 and is then distributed into the conical air flow distribution cap 20 and the annular air flow distribution pipe 21 and sprayed out through the air holes 23, thereby forming uniform upward air flow, making the powder flow, and uniformly discharging the powder from the discharge port 8; the transition pipe II 30 is externally connected with a gas pump provided with a flow control device, air enters the gas filtering assembly II 31 through the transition pipe II 30, impurities and moisture in the air are filtered out, dry and clean gas impacts the powder in the powder spraying tee pipe 28 through the discharge port 8, and the powder is finally uniformly sprayed out through the powder spraying head 29.

[0046] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A powder spraying can which can uniformly spray powder, characterized by, The application relates to a dry agent storage tank. The tank body is a double-layer structure comprising an inner tank body and an outer tank body, and a cavity between the inner tank body and the outer tank body is filled with dry agent; the bottom of the inner tank body is provided with a discharge port, and the upper end of the side wall of the inner tank body is provided with a plurality of air-permeable micropores which are communicated with the cavity; The tank cover is detachably arranged on the top of the tank body, and the tank cover is provided with a feeding port and a safety valve port which are communicated with the inner cavity of the inner tank body; The anti-caking unit comprises a driving device arranged on the tank cover, a stirring device driven by the driving device and arranged in the inner cavity of the inner tank body, and a vibration motor arranged on the outer side wall of the bottom of the inner tank body; The airflow unit comprises an airflow distribution assembly arranged at the bottom of the inner cavity of the inner tank body, and a butt joint air pipe assembly which is connected with the airflow distribution assembly and extends to the outer side of the side wall of the inner tank body; The powder spraying unit comprises a powder spraying tee pipe connected with the discharge port, a gas supplement pipe assembly connected with one end of the powder spraying tee pipe, and a powder spraying head connected with the other end of the powder spraying tee pipe.

2. The uniform dispensing duster of claim 1 wherein: The bottom of the inner tank body is in the shape of an inverted cone, a lap plate is arranged on the outer side wall of the inner tank body at the upper end of the air-permeable micropores in the circumferential direction, a connecting flange one is arranged on the outer side wall of the inner tank body at the lower end in the circumferential direction, a support plate is arranged on the inner side wall of the outer tank body at the upper end in the circumferential direction, a connecting flange two is arranged on the bottom of the outer tank body in the circumferential direction, the inner tank body is detachably arranged in the inner cavity of the outer tank body, the lap plate is lapped on the support plate, and the connecting flange one and the connecting flange two are detachably fixed through bolts.

3. The uniform dispensing duster of claim 2 wherein: The top end of the side wall of the outer tank body is provided with a dry agent feeding port which is communicated with the cavity, and the top end of the side wall of the outer tank body is provided with a dry agent discharge port which is communicated with the cavity; a sealing cover is detachably arranged on the dry agent feeding port and the dry agent discharge port.

4. The uniform dispensing duster of claim 1 wherein: The tank cover comprises an inner tank cover and an outer tank cover; the top of the outer tank body is higher than the top of the inner tank body; the inner tank cover is arranged on the top of the inner tank body, and the outer tank cover is arranged on the top of the outer tank body in a bolted manner and is pressed on the inner tank cover; sealing pads are arranged between the inner tank cover and the inner tank body and between the outer tank cover and the outer tank body; the feeding port and the safety valve port are arranged on the inner tank cover, and the outer tank cover is provided with through holes through which the feeding port and the safety valve port extend.

5. The uniform dispensing duster of claim 4 wherein: The driving device is arranged on the top of the outer tank cover, and the inner tank cover is provided with through holes through which the output butt joint end of the driving device extends; the stirring device comprises a stirring rod and helical blades arranged on the stirring rod; the top end of the stirring rod is connected with the output butt joint end of the driving device through a connecting piece.

6. The uniform dispensing duster of claim 1 wherein: The air flow distribution assembly comprises a conical air flow distribution cap arranged right above the discharge port, a plurality of annular air flow distribution pipes arranged along the inner side wall of the bottom of the inner tank in a circumferential direction outside the conical air flow distribution cap, and connecting air pipes connecting the annular air flow distribution pipes; the conical air flow distribution cap has a hollow structure with a plurality of obliquely arranged air holes distributed thereon; the side of the annular air flow distribution pipes facing the center of the inner tank has a plurality of obliquely arranged air holes distributed thereon; the conical air flow distribution cap and the annular air flow distribution pipes are connected with the docking air pipe assembly.

7. The uniform dispensing duster of claim 6 wherein: The docking air pipe assembly comprises a docking pipe, a connecting head, a transition pipe one and a gas filtering assembly one; one end of the docking pipe is connected with the conical air flow distribution cap and the annular air flow distribution pipes, the other end of the docking pipe passes through the side wall of the bottom of the inner tank and is connected with one end of the connecting head fixed on the outer side wall of the inner tank, the other end of the connecting head is detachably connected with the transition pipe one, the gas filtering assembly one is detachably installed on the pipeline of the transition pipe one, and the other end of the transition pipe one is used for being connected with an external gas supply end.

8. The uniform dispensing duster of claim 1 wherein: The air supplement pipe assembly comprises a transition pipe two connected with one end of the powder spraying tee pipe and a gas filtering assembly two installed on the pipeline of the transition pipe two; the other end of the transition pipe two is used for being connected with an external gas supply end.

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