Coating and stirring equipment for metallurgical powder surface modifier

Abstract

The utility model relates to the technical field of stirring, and discloses metallurgical powder surface modifier coating stirring equipment which comprises a heating sleeve, a material barrel is mounted in the heating sleeve, and a heat preservation cover plate is mounted on the upper side of the material barrel; a central cylinder is installed at the bottom of the inner side of the material barrel in a threaded connection mode, first exhaust holes are evenly formed in the circumferential side of the central cylinder, duckbilled check valves are fixedly installed in the first exhaust holes, a gas conveying pipe is fixedly installed at the center of the bottom of the heating sleeve, the upper end of the gas conveying pipe is assembled with the material barrel in an inserted connection mode, and the lower end of the gas conveying pipe extends out of the heating sleeve; the center cylinder is sleeved with a driving cylinder, second exhaust holes are evenly formed in the circumferential side of the driving cylinder, and stirring blades are evenly and fixedly installed on the circumferential side of the driving cylinder. Inert gas can be introduced during stirring, the stirring and mixing effect can be improved through cooperation of the stirring mode and the ventilation mode, internal air can be exhausted, the uniformity and comprehensiveness of modifier coating are prevented from being affected, and the passivation effect of metallurgical powder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring, in particular to coating and stirring equipment for a metallurgical powder surface modifier. Background Art

[0002] The function of metallurgical powder surface modifier is to form a stable passivation layer on the surface of metallurgical powder. The treated metallurgical powder can remain inert at low temperatures. At high temperatures, the passivation layer is thermally decomposed to release the activity of the metallurgical powder, making the metallurgical powder material highly reactive and efficient.

[0003] In the process of coating the metallurgical powder surface modifier on the surface of the metallurgical body, an agitator is often used. The metallurgical powder (for example, one or more metal powders such as zinc powder, magnesium powder, calcium oxide or powders of easily inactivated substances) and the modifier are evenly mixed by rotating stirring blades to form a passivation layer. However, the stirring and mixing method is relatively simple, and the air present inside will also affect the coating effect of the modifier, resulting in poor mixing efficiency and modification effect.

[0004] Therefore, in order to solve the above problems, a coating and stirring device for a metallurgical powder surface modifier is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a coating and stirring device for a metallurgical powder surface modifier, which can improve the uniformity and comprehensiveness of the coating of the modifier on the metallurgical powder surface, ensure the passivation effect, and thus solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The coating and stirring equipment of the metallurgical powder surface modifier comprises a heating sleeve, a material barrel is installed inside the heating sleeve, and an insulating cover is installed on the upper side of the material barrel; a center cylinder is screwed on the inner bottom of the material barrel, and a first exhaust hole is evenly opened on the circumferential side of the center cylinder, and a duckbill check valve is fixedly installed in each of the first exhaust holes; an air supply pipe is fixedly installed at the bottom center of the heating sleeve, and the upper end of the air supply pipe is plug-assembled with the material barrel, and the lower end of the air supply pipe protrudes out of the heating sleeve, and the center cylinder is provided with a driving cylinder, and second exhaust holes are evenly opened on the circumferential side of the driving cylinder, and stirring blades are evenly fixedly installed on the circumferential side of the driving cylinder; a heating component is arranged between the heating sleeve and the material barrel, and a driving component is arranged at the center of the insulating cover, and the driving component and the driving cylinder are connected by a connecting structure.

[0008] Specifically, the heating assembly includes an insulation layer and an electric heating wire. The insulation layer is fixedly installed on the inner surface of the heating sleeve. The interior of the heating sleeve is fixedly installed with an electric heating wire through a clamp. The electric heating wire is spirally wound around the side wall and bottom of the material barrel.

[0009] Specifically, the driving assembly includes a motor and a controller. A containing shell is integrally formed at the center of the thermal insulation cover plate. The motor is fixedly installed inside the containing shell. The controller is fixedly installed on the upper side of the motor.

[0010] Specifically, the connection structure includes a connection block and a connection slot. The output end of the motor is fixedly mounted with the connection block. The top of the driving cylinder is provided with a connection slot. The connection block and the connection slot are plug-in assembled.

[0011] Specifically, the connection block is a regular prism, and the shape of the connection groove is adapted to the connection block.

[0012] Specifically, both ends of the circumferential side of the driving cylinder are provided with limiting rings, and the driving cylinder is rotatably assembled on the outer side of the limiting rings.

[0013] Specifically, arc grooves are provided on the edges of the heating sleeve and the material barrel, and the arc grooves on each edge are evenly distributed around the circumference and there are at least two of them. An L-shaped hook is fixedly installed on the lower surface of the insulation cover plate, and the L-shaped hook passes through the aligned arc grooves and is screwed and locked.

[0014] Specifically, the heat-insulating cover plate is connected to a feed pipe, and a sealing cap is connected to the top of the feed pipe.

[0015] Specifically, the heat-insulating cover plate is connected and installed with an exhaust valve.

[0016] Specifically, a support column is fixedly installed on the circumferential side of the heating sleeve.

[0017] The beneficial effects are:

[0018] The separate heating jacket, material barrel and insulation cover can be quickly installed and disassembled through the L-shaped hook, which is convenient for use;

[0019] Inert gas can be introduced through the air pipe, duckbill check valve and the second exhaust hole without affecting the rotating stirring of the stirring blade. The stirring and mixing effects can be improved by cooperating with the two methods of stirring and ventilation, and the internal air can be discharged to avoid affecting the uniformity and comprehensiveness of the modifier coating and ensure the passivation effect of the metallurgical powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic front view of the structure of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0022] Figure 3 It is a schematic cross-sectional view of the structure of the central tube of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the structure of the drive cylinder of the utility model.

[0024] In the figure: 1 heating sleeve, 2 heating component, 21 insulation layer, 22 electric heating wire, 3 material barrel, 4 insulation cover, 5 drive component, 51 controller, 52 motor, 6 center tube, 7 duckbill check valve, 8 connection structure, 81 connection block, 82 connection groove, 9 drive tube, 10 second exhaust hole, 11 stirring blade, 12 feed pipe, 13 L-shaped hook, 14 support column, 15 air pipe, 16 limit ring, 17. exhaust valve. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1 and Figure 2 The utility model provides a coating and stirring device for a metallurgical powder surface modifier, comprising a heating jacket 1, a material barrel 3 is installed inside the heating jacket 1, an insulation cover plate 4 is installed on the upper side of the material barrel 3, the heating jacket 1 is used to place the material barrel 3, the material barrel 3 is used to hold the modifier and metallurgical powder, and the insulation cover plate 4 is used to seal the material barrel 3, so as to prevent the modifier and metallurgical powder from overflowing.

[0027] A center tube 6 is screwed onto the bottom of the inner side of the material barrel 3, and the sealing of the connection is enhanced by a sealing gasket. First exhaust holes are evenly opened on the circumferential side of the center tube 6, and a duckbill check valve 7 is fixedly installed in the first exhaust hole. The duckbill check valve 7 has a non-return function, which can only allow the gas in the center tube 6 to be transported into the material barrel 3, but not the opposite.

[0028] A gas pipe 15 is fixedly installed at the bottom center of the heating jacket 1. The upper end of the gas pipe 15 is plugged and assembled with the material barrel 3, thereby communicating with the central tube 6. The lower end of the gas pipe 15 protrudes out of the heating jacket 1. The lower end of the gas pipe 15 protruding out of the heating jacket 1 is bent to one side at a right angle to facilitate connection with an external inert gas supply device (mainly composed of a storage tank, a delivery pipe, a heating jacket and other structures). The inert gas can be selected as nitrogen, argon, helium and other inert gases.

[0029] The central cylinder 6 is sleeved with a driving cylinder 9, and second exhaust holes 10 are evenly opened on the circumferential side of the driving cylinder 9. A stirring blade 11 is evenly fixedly installed on the circumferential side of the driving cylinder 9. When the driving cylinder 9 rotates, the modifier and metallurgical powder in the material barrel 3 are stirred by the stirring blade 11 to achieve mixing, and the inert gas will enter the modifier and metallurgical powder through the gas pipe 15, the central cylinder 6, the duckbill check valve 7 and the second exhaust hole 10. The inert gas can blow up the metallurgical powder in the material barrel 3, which is beneficial to the full contact between the powder and the modifier and achieves uniform coating. In addition, the blowing of the inert gas can effectively isolate the influence of the air retained in the stirring environment on the activity of the powder and stabilize the quality of the powder.

[0030] A heating component 2 is provided between the heating sleeve 1 and the material barrel 3, and is electrically connected to an external controller for providing the set temperature and duration; a driving component 5 is provided at the center of the thermal insulation cover plate 4, and the driving component 5 is used to provide rotational power to the driving cylinder 9; the driving component 5 is connected to the driving cylinder 9 by a connecting structure 8, and the connecting structure 8 is convenient for installation and disassembly, and can transmit power during docking and can be quickly disassembled during maintenance.

[0031] For details, please refer to Figure 2 The heating component 2 includes a thermal insulation layer 21 and an electric heating wire 22. The thermal insulation layer 21 is fixedly installed on the inner surface of the heating sleeve 1, and the electric heating wire 22 is fixedly installed inside the heating sleeve 1 through a clamp. The electric heating wire 22 is spirally wound around the side wall and bottom of the material barrel 3; the heat generated by the electric heating wire 22 after power is turned on will be transferred to the modifier and metallurgical powder, and the thermal insulation layer 21 can prevent heat from being lost from this side of the heating sleeve 1, and the heating efficiency is high.

[0032] Specifically, the driving assembly 5 includes a motor 52 and a controller 51. A containing shell is integrally formed at the center of the thermal insulation cover 4. The motor 52 is fixedly installed inside the containing shell, and the controller 51 is fixedly installed on the upper side of the motor 52. The motor 52 and the controller 51 are electrically connected, and the controller 51 is connected to an external power supply. The speed and duration of the motor 52 can be set by using the buttons on the controller 51.

[0033] For details, please refer to Figure 4 The connection structure 8 includes a connection block 81 and a connection groove 82. The connection block 81 is fixedly installed on the output end of the motor 52. The top of the driving cylinder 9 is provided with a connection groove 82. The connection block 81 and the connection groove 82 are plugged and assembled. Through the separate driving assembly 5 and the driving cylinder 9, it is convenient to remove the driving cylinder 9 for separate maintenance.

[0034] The connecting block 81 is a regular prism, preferably a quadrilateral regular prism, and the shape of the connecting groove 82 is adapted to the connecting block 81; the transmission of torque can be ensured, and plugging and disassembly are convenient.

[0035] For details, please refer to Figure 3Limiting rings 16 are provided at both ends of the circumferential side of the driving cylinder 9, and the driving cylinder 9 is rotatably assembled on the outside of the limiting rings 16; the limiting rings 16 can make the protruding part of the duckbill check valve 7 located inside the driving cylinder 9 to avoid contact with the driving cylinder 9 and mutual interference.

[0036] For details, please refer to Figure 2 The edges of the heating sleeve 1 and the material barrel 3 are provided with arc grooves, and the arc grooves on each edge are evenly distributed around the circumference and there are at least two of them. An L-shaped hook 13 is fixedly installed on the lower surface of the thermal insulation cover plate 4; when used for stirring, the L-shaped hook 13 passes through the aligned arc grooves and is screwed and locked, so that the thermal insulation cover plate 4, the material barrel 3 and the heating sleeve 1 can be connected into a firmly sealed whole. After the stirring is completed, the thermal insulation cover plate 4 can be screwed in the reverse direction to remove the L-shaped hook 13 from the arc groove again, and the various parts can be separated.

[0037] The heat-insulating cover plate 4 is connected to a feed pipe 12 , and a sealing cap is connected to the top of the feed pipe 12 . The feed pipe 12 is used to add a modifier and is sealed by the sealing cap.

[0038] The heat-insulating cover plate 4 is connected to an exhaust valve 17, and an output end of the exhaust valve 17 is connected to the outside through a conduit for exhausting excess inert gas, and the inert gas is safely released outdoors.

[0039] A support column 14 is fixedly installed on the circumferential side of the heating jacket 1. The support column 14 is used to support the heating jacket 1 so that a gap is left between the bottom of the heating jacket 1 and the placement surface, leaving enough installation space for the lower end of the gas pipe 15.

[0040] The working method of this embodiment is as follows:

[0041] When in use, put the metallurgical powder into the material barrel 3, install the material barrel 3, the center barrel 6, the driving barrel 9 and the insulation cover plate 4 in the heating jacket 1 in sequence, and lock and fix them through the L-shaped hook 13;

[0042] The modifier is fed into the material barrel 3 through the feed pipe 12. After setting the heating temperature and duration, stirring speed and duration, gas introduction amount and introduction speed, the modifier and metallurgical powder can be stirred and mixed, and at the same time, inert gas is introduced to assist stirring and active protection; in addition, the exhausted air and excess inert gas are discharged to the outside through the exhaust valve 17 to avoid excessive internal gas.

[0043] After completion, the material barrel 3 can be disassembled to transfer out the metallurgical powder with the passivation layer.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coating and stirring device for metallurgical powder surface modifier, characterized in that: It comprises a heating jacket (1), a material barrel (3) is installed inside the heating jacket (1), and a heat-insulating cover plate (4) is installed on the upper side of the material barrel (3); A central tube (6) is screwed on the bottom of the inner side of the material barrel (3), and first exhaust holes are evenly arranged on the circumferential side of the central tube (6), and a duckbill check valve (7) is fixedly installed in each of the first exhaust holes. An air supply pipe (15) is fixedly installed at the bottom center of the heating sleeve (1), and the upper end of the air supply pipe (15) is plug-connected and assembled with the material barrel (3), and the lower end of the air supply pipe (15) protrudes out of the heating sleeve (1). A driving tube (9) is sleeved on the central tube (6), and second exhaust holes (10) are evenly arranged on the circumferential side of the driving tube (9), and stirring blades (11) are evenly fixedly installed on the circumferential side of the driving tube (9); A heating assembly (2) is arranged between the heating sleeve (1) and the material barrel (3), a driving assembly (5) is arranged at the center of the heat-insulating cover plate (4), and the driving assembly (5) is connected to the driving cylinder (9) via a connecting structure (8).

2. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: The heating component (2) comprises a heat-insulating layer (21) and an electric heating wire (22); the heat-insulating layer (21) is fixedly mounted on the inner surface of the heating sleeve (1); the electric heating wire (22) is fixedly mounted inside the heating sleeve (1) via a clamp; the electric heating wire (22) is spirally wound around the side wall and the bottom of the material barrel (3).

3. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: The driving assembly (5) comprises a motor (52) and a controller (51); a housing shell is integrally formed at the center of the heat-insulating cover plate (4); the motor (52) is fixedly mounted inside the housing shell; and the controller (51) is fixedly mounted on the upper side of the motor (52).

4. The coating and stirring device for metallurgical powder surface modifier according to claim 3, characterized in that: The connection structure (8) comprises a connection block (81) and a connection groove (82); the connection block (81) is fixedly mounted on the output end of the motor (52); the top of the driving cylinder (9) is provided with a connection groove (82); the connection block (81) and the connection groove (82) are plug-connected and assembled.

5. The coating and stirring device for metallurgical powder surface modifier according to claim 4, characterized in that: The connection block (81) is a regular prism, and the shape of the connection groove (82) is adapted to the connection block (81).

6. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: Limiting rings (16) are provided at both ends of the circumferential side of the driving cylinder (9), and the driving cylinder (9) is rotatably assembled on the outside of the limiting rings (16).

7. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: The edges of the heating sleeve (1) and the material barrel (3) are provided with arc grooves, and the arc grooves on each edge are evenly distributed around the circumference and there are at least two of them. An L-shaped hook (13) is fixedly installed on the lower surface of the thermal insulation cover plate (4), and the L-shaped hook (13) passes through the aligned arc grooves and is screwed and locked.

8. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: The heat-insulating cover plate (4) is connected to a feed pipe (12) and a sealing cap is installed on the top of the feed pipe (12).

9. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: The heat-insulating cover plate (4) is connected to and provided with an exhaust valve (17).

10. The coating and stirring device for metallurgical powder surface modifier according to claim 1, characterized in that: A support column (14) is fixedly mounted on the circumferential side of the heating sleeve (1).

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