Powder drying equipment

Abstract

The utility model relates to the technical field of material drying, in particular to powder drying equipment which comprises a tank body and a tank cover installed on the opening portion of the tank body. The tank body is provided with a drying chamber and a mixing chamber, a plurality of drying cylinders which are arranged at intervals are fixedly arranged in the drying chamber, the drying cylinders are arranged at intervals in the circumferential direction of the drying chamber, the drying cylinders are not communicated with one another, the drying cylinders are communicated with the mixing chamber, the corresponding communicating parts are provided with material passing switch valves for controlling the communicating parts to be connected and disconnected, and the mixing chamber is located below the drying chamber; the drying cavity is provided with a drying assembly used for drying powder, and the mixing cavity is provided with a mixing assembly used for mixing the powder. The tank cover is provided with a feeding port. In the technical process, different types of powder can be added into the different drying cylinders and are respectively dried without mutual interference, so that the drying quality of various types of powder is ensured, the structure of the powder is not damaged, and the laser cladding quality of a cladding area is not influenced.

Description

Technical Field

[0001] The present application relates to the technical field of material drying, and in particular to a powder drying device. Background Art

[0002] The tubes of power generation boilers are made of metal. The tubes will corrode over time, especially in high temperature, high pressure, and high oxygen environments. They are corroded by oxides in the air, leading to reduced thickness of the outer wall of the pipes and rupture of the pipes. In order to prevent the tubes from self-corroding, a laser nozzle is usually used to apply corrosion-resistant coating to the outer wall of the boiler tubes to achieve corrosion resistance and corrosion resistance.

[0003] Currently, the method of spraying using a laser nozzle is a synchronous powder feeding operation. This operation method has high requirements for the cladding powder, which needs to be kept highly dry and finally mixed together. However, since the cladding powder is easily affected by moisture during long-term storage, if it is not dried, it is easy to cause the powder to clump, making it difficult to mix evenly, and reducing the bonding strength. Existing drying equipment all mixes different types of powders together for drying. Since the properties and moisture content of different types of powders are inconsistent, if multiple powders are mixed together for drying, the structure of some powders will inevitably be destroyed, affecting the quality of the cladding area. Utility Model Content

[0004] The purpose of the present application is to provide a powder drying device to solve the technical problem that when mixing different types of powders, the structure of some powders is easily destroyed, thereby affecting the cladding quality of the cladding area.

[0005] The present application provides a powder drying device, comprising: a tank body and a tank cover installed on the open part of the tank body; the tank body has a drying chamber and a mixing chamber, a plurality of drying cylinders arranged at intervals are fixed in the drying chamber, and the drying cylinders are arranged at intervals along the circumference of the drying chamber. The drying cylinders are not connected to each other, and the drying cylinders are connected to the mixing chamber, and the corresponding connecting parts are provided with a material switching valve for controlling the opening and closing thereof, and the mixing chamber is located below the drying chamber; the drying chamber is provided with a drying component for drying powder, and the mixing chamber is provided with a mixing component for mixing powder; the tank cover has a feed inlet.

[0006] Optionally, the drying component includes:

[0007] A stirring bracket is installed in the drying chamber;

[0008] a first stirring shaft, drivingly connected to a first rotating driving member, wherein the first rotating driving member is mounted on the stirring bracket;

[0009] The first stirring blade is fixed to the first stirring shaft and located in the drying chamber.

[0010] Optionally, the drying component further includes: a temperature sensor and a humidity sensor, wherein the temperature sensor is used to sense the temperature in the drying cylinder, and the humidity sensor is used to sense the humidity in the drying cylinder.

[0011] Optionally, the drying component further includes a linear drive component mounted on the stirring bracket, and a power output end of the linear drive component is transmission-connected to the temperature sensor and the humidity sensor to drive the temperature sensor and the humidity sensor to extend into the drying cylinder.

[0012] Optionally, the stirring support includes: a column and a crossbeam fixed to the upper end of the column, wherein there are multiple crossbeams respectively disposed above the drying cylinder, and the column is coaxial with the tank body;

[0013] Both the first rotary drive and the linear drive are mounted on the crossbeam.

[0014] Optionally, the internal seal of the tank body is fixed with an upper partition and a lower partition arranged at intervals, the upper partition has an upper material port, and the lower partition has a lower material port, the upper material port and the lower material port are connected through a material conveying pipe, and the upper material port is connected to the drying cylinder, and the lower material port is connected to the mixing chamber; the column is installed on the upper partition.

[0015] Optionally, the mixing assembly comprises:

[0016] The second stirring shaft is driven by a second rotating drive component, which is mounted on the lower partition and located in the mixing chamber.

[0017] The second stirring blade is fixed to the second stirring shaft and is located in the mixing chamber.

[0018] Optionally, the bottom of the mixing chamber is provided with a discharge channel, and the discharge channel is provided with a discharge switching valve.

[0019] Optionally, the first rotation driving member and the second rotation driving member are both motors, and the linear driving member is a cylinder;

[0020] And / or, the can lid is screwed to the can body, and the top of the can lid is also provided with a handle and a fan;

[0021] And / or, a movable base plate is fixedly connected to the bottom of the tank.

[0022] Optionally, the diameter of the movable bottom plate is larger than the diameter of the tank body, and a guardrail is provided on the top of the movable bottom plate and a universal wheel is provided on the bottom.

[0023] The powder drying equipment provided by the embodiment of the utility model has the following beneficial effects:

[0024] In the powder drying equipment provided by the embodiment of the present invention, different types of powders can be added to different drying cylinders during the process, and then dried separately. During this process, each drying cylinder operates independently without interfering with each other, thereby ensuring the drying quality of each type of powder. Powders that meet the drying conditions are added to the mixing chamber for sufficient mixing to obtain mixed powders that meet the requirements. During this process, since each powder will not destroy the structure of the powder, it will not affect the laser cladding quality of the cladding area, thereby ensuring the processing quality of the workpiece to be processed. Attached Figure Description

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0026] Figure 1 This is a schematic cross-sectional view of the powder drying equipment provided by the embodiment of the present utility model;

[0027] Figure 2 This is an overall top view of the powder drying equipment provided by an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the powder drying equipment provided in an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1-tank body; 101-drying chamber; 102-mixing chamber; 103-feeding pipe;

[0031] 2-drying assembly; 201-drying cylinder; 202-column; 203-crossbeam; 204-first rotating drive member;

[0032] 205- linear drive member;

[0033] 3-mixing assembly; 301-second rotating drive member; 302-second stirring blade; 303-discharge channel;

[0034] 4-can lid; 401-feed port; 402-handle;

[0035] 5-Controller;

[0036] 6- Move the base plate. DETAILED DESCRIPTION

[0037] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] The present application will be further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0039] The present invention provides a powder drying device. Figure 1-Figure 3 As shown, it comprises: a tank body 1 and a tank cover 4 installed on the open part of the tank body 1; the tank body 1 has a drying chamber 101 and a mixing chamber 102, and a plurality of drying cylinders 201 arranged at intervals are fixed in the drying chamber 101. The drying cylinders 201 are arranged at intervals along the circumference of the drying chamber 101. The drying cylinders 201 are not connected to each other. The drying cylinders 201 are connected to the mixing chamber 102, and the corresponding connecting parts are provided with a material switching valve to control the opening and closing thereof. The mixing chamber 102 is located below the drying chamber 101; the drying chamber 101 is provided with a drying component 2 for drying powder, and the mixing chamber 102 is provided with a mixing component 3 for mixing powder; the tank cover 4 has a feeding port 401.

[0040] In the powder drying equipment provided by the embodiment of the present invention, a plurality of drying cylinders 201 are provided in the drying chamber 101, and the drying cylinders 201 are not connected to each other, and the drying cylinders 201 are connected to the mixing chamber 102, and the connecting portion is provided with a material switching valve. During the process, different types of powders can be added to different drying cylinders 201. For example, ceramic powder can be added to one of the drying cylinders 201, and other different powders can be added to the other drying cylinders 201. Then, each of them is dried separately. During this process, each drying cylinder 201 operates independently without interfering with each other, thereby ensuring the drying quality of each type of powder. The powders that meet the drying conditions are all added to the mixing chamber for sufficient mixing to obtain a mixed powder that meets the requirements. During this process, since each powder will not destroy the structure of the powder, it will not affect the laser cladding quality of the cladding area, thereby ensuring the processing quality of the workpiece to be processed.

[0041] Specifically, a plurality of feed ports 401 are provided on the top of the tank cover 4, and the plurality of feed ports 401 correspond one-to-one to the plurality of drying cylinders 201, so that different types of powders can smoothly enter different drying cylinders 201. When there are multiple types of powders to be dried, such as ceramic powder and other powders (these powder materials are all prior art and will not be described in detail in this embodiment), according to the required ratio, different weights of powders are weighed proportionally and then respectively fed into the drying cylinder 201 through the plurality of feed ports 401. After feeding, the tops of the feed ports 401 can be marked with numbers according to the types of powders fed, and each number corresponds to a drying cylinder 201.

[0042] In the embodiment of the present invention, the drying assembly 2 includes: a stirring bracket, a first stirring shaft, and a first stirring blade. The stirring bracket is mounted in the drying chamber 101. The first stirring shaft is connected to a first rotating drive member 204, which is mounted on the stirring bracket. The first stirring blade is fixed to the first stirring shaft and is located in the drying chamber 101. With this arrangement, the first rotating drive member 204 drives the first stirring shaft and the first stirring blade to fully stir the powder in the drying drum, thereby accelerating the drying rate and ensuring drying uniformity.

[0043] In the embodiment of the present invention, the drying assembly 2 further includes a temperature sensor and a humidity sensor. The temperature sensor is used to sense the temperature inside the drying cylinder 201, and the humidity sensor is used to sense the humidity inside the drying cylinder 201. This arrangement allows for real-time monitoring of the temperature and humidity of the powder inside the drying cylinder 201, thereby accurately controlling the drying process.

[0044] In the embodiment of the present invention, the drying assembly 2 further includes a linear drive member 205 mounted on the stirring bracket. The power output end of the linear drive member 205 is connected to the temperature sensor and the humidity sensor to drive the temperature sensor and the humidity sensor into the drying cylinder 201. This arrangement facilitates control of the position of the temperature sensor and the humidity sensor.

[0045] In the embodiment of the present invention, the stirring bracket includes: a column 202 and a crossbeam 203 fixed to the upper end of the column 202. There are multiple crossbeams 203, which are respectively arranged above the drying cylinder 201. The column 202 is coaxial with the tank body 1. The first rotating drive member 204 and the linear drive member 205 are both installed on the crossbeam 203. Such an arrangement has a simple structure and is easy to implement. In this embodiment, taking the example of four drying cylinders 201 and four crossbeams 203, the four crossbeams 203 are symmetrically and evenly arranged circumferentially to form a cross structure, and the ends of the crossbeams extend to the top of the multiple drying cylinders 201.

[0046] In this embodiment of the invention, the tank body 1 is internally sealed with an upper partition and a lower partition that are spaced apart. The upper partition has an upper feed port, and the lower partition has a lower feed port. The upper and lower feed ports are connected by a conveying pipe 103. The upper feed port is connected to the drying cylinder 201, and the lower feed port is connected to the mixing chamber 102. The column 202 is installed on the upper partition. The upper and lower partitions effectively isolate the drying chamber 101 and the mixing chamber 102. Because they are spaced apart, there is a gap between them, which can insulate against heat, thereby reducing or even avoiding the heat transferred from the drying cylinder 201 to the mixing chamber 102.

[0047] In this embodiment of the invention, the mixing component 3 includes a second stirring shaft and a second stirring blade 302. The second stirring shaft is driven by a second rotation drive 301, which is mounted on the lower partition and located in the mixing chamber 102. The second stirring blade 302 is fixed to the second stirring shaft and located within the mixing chamber 102. With this configuration, under the driving action of the second rotation drive 301, the second stirring shaft and the second stirring blade rotate, thereby fully mixing the powder within the mixing chamber 102.

[0048] In the embodiment of the present invention, a discharge channel 303 is provided at the bottom of the mixing chamber 102. The discharge channel 303 is provided with a discharge on-off valve. Specifically, the discharge channel 303 includes a discharge port provided at the bottom of the mixing chamber 102 and a discharge pipe connected to the discharge port. The discharge pipe is connected to the outside of the mixing chamber 102. This arrangement facilitates the control of the discharge of the powder in the mixing chamber 102.

[0049] In this embodiment of the invention, both the first rotary drive component 204 and the second rotary drive component 301 are motors, and the linear drive component 205 is a cylinder. The can lid 4 is screwed to the can body 1, and the top of the can lid 4 is also equipped with a handle 402 and a fan. The specific configuration is conventional and will not be described in detail here. A movable base plate 6 is fixedly connected to the bottom of the can body 1. When drying the powder, the fan is turned on simultaneously, and the fan delivers hot air into the drying chamber 101 (drying cylinder 201) to dry the powder. During the drying process, the first stirring blades driven by the drive component stir the powder in the drying cylinder 201. During the stirring process, the hot air delivered by the fan comes into contact with the powder and carries away the moisture in the powder. After the drying time of each drying cylinder 201 is completed, the corresponding temperature sensor and humidity sensor detect the temperature and humidity of the powder inside the drying cylinder 201. If the requirements are not met, the drying process continues. If the requirements are met, the controller 5 shuts down the drive component corresponding to the drying cylinder 201 without affecting the normal operation of the other drive components.

[0050] In this embodiment of the utility model, a mounting plate is fixedly connected to the drive end of the cylinder, and both the temperature sensor and the humidity sensor are fixedly connected to the bottom of the mounting plate so that the cylinder drives the detection of the temperature and humidity of the powder in the multiple drying cylinders 201.

[0051] In this embodiment of the invention, the diameter of the movable base plate 6 is larger than the diameter of the tank body 1. The top of the movable base plate 6 is equipped with a protective railing, and the bottom is equipped with casters. This arrangement serves two purposes: firstly, the protective railing prevents non-operating personnel from approaching, ensuring user safety; secondly, the casters allow the tank body 1 to be pushed, improving mobility and convenience of use.

[0052] In the embodiment of the present invention, the controller 5 is disposed on the outer periphery of the tank body 1 and is provided with a timing module. Specifically, because different types of powders require different drying times and contain different humidity levels, it is necessary to set multiple drying times through the timing module. The timing module within the controller 5 can set different drying times for different powders in the drying drum to adapt to the inherent properties of the different powders. During the timing of the timing module, the activation or deactivation of the numerical control drive is obtained based on the detection of the temperature sensor and the humidity sensor. In addition, the controller 5 can simultaneously activate multiple temperature sensors and humidity sensors based on the properties and humidity levels of different powders, and record and store the measured temperatures and humidity levels.

[0053] In the embodiment of the present invention, both the feed switch valve and the discharge switch valve can be electronic valves, that is, electronic valves can be installed on both the feed pipe 103 and the discharge pipe, and the electronic valves are electrically connected to the controller 5. When all the powders in the drying cylinder 201 are detected by the temperature sensor and the humidity sensor, and the detected data meet the requirements, the controller 5 controls the electronic valve in the feed pipe 103 to open, so that the dried different powders are transported from the feed pipe 103 to the mixing chamber 102, and the controller 5 then starts the second rotating drive member 301 to drive the second stirring blade 302 to stir and mix the multiple powders. After the stirring and mixing is completed, the electronic valve in the discharge pipe is opened to transport the powder outward.

[0054] In the description of this application, it should be noted that the terms "upper", "lower", "front", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0055] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "installation" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; and it can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder drying device, characterized in that: include: A tank body (1) and a tank cover (4) mounted on the open portion of the tank body (1); the tank body (1) comprises a drying chamber (101) and a mixing chamber (102); a plurality of drying cylinders (201) are fixedly arranged at intervals in the drying chamber (101); the drying cylinders (201) are arranged at intervals along the circumference of the drying chamber (101); the drying cylinders (201) are not connected to each other; the drying cylinders (201) are connected to the mixing chamber (102), and a material switching valve for controlling the opening and closing of the material switching valve is provided at the corresponding connecting portion; the mixing chamber (102) is located below the drying chamber (101); the drying chamber (101) is provided with a drying component (2) for drying powder, and the mixing chamber (102) is provided with a mixing component (3) for mixing powder; the tank cover (4) has a feeding port (401).

2. The powder drying equipment according to claim 1, characterized in that: The drying component (2) comprises: A stirring support, installed in the drying chamber (101); A first stirring shaft, which is transmission-connected to a first rotating driving member (204), wherein the first rotating driving member (204) is mounted on the stirring support; The first stirring blade is fixed to the first stirring shaft and is located in the drying chamber (101).

3. The powder drying equipment according to claim 2, characterized in that: The drying component (2) further comprises: a temperature sensor and a humidity sensor, wherein the temperature sensor is used to sense the temperature inside the drying cylinder (201), and the humidity sensor is used to sense the humidity inside the drying cylinder (201).

4. The powder drying equipment according to claim 3, characterized in that: The drying component (2) further comprises a linear drive member (205) mounted on the stirring support, wherein a power output end of the linear drive member (205) is transmission-connected to the temperature sensor and the humidity sensor so as to drive the temperature sensor and the humidity sensor to extend into the drying cylinder (201).

5. The powder drying equipment according to claim 4, characterized in that: The stirring support comprises: a column (202) and a crossbeam (203) fixed to the upper end of the column (202), wherein a plurality of crossbeams (203) are respectively arranged above the drying cylinder (201), and the column (202) and the tank body (1) are coaxial. The first rotation driving member (204) and the linear driving member (205) are both mounted on the crossbeam (203).

6. The powder drying equipment according to claim 5, characterized in that: The tank body (1) is sealed and fixedly provided with an upper partition and a lower partition arranged at intervals inside, the upper partition having an upper material opening, the lower partition having a lower material opening, the upper material opening and the lower material opening being connected via a feed pipe (103), the upper material opening being connected to the drying cylinder (201), and the lower material opening being connected to the mixing chamber (102); the column (202) is mounted on the upper partition.

7. The powder drying equipment according to claim 6, characterized in that: The mixing assembly (3) comprises: A second stirring shaft is drivingly connected to a second rotating driving member (301), wherein the second rotating driving member (301) is mounted on the lower partition and is located in the mixing chamber (102); The second stirring blade (302) is fixed to the second stirring shaft and is located in the mixing chamber (102).

8. The powder drying equipment according to claim 7, characterized in that: The bottom of the mixing chamber (102) is provided with a discharge channel (303), and the discharge channel (303) is provided with a discharge switch valve.

9. The powder drying equipment according to claim 7, characterized in that: The first rotating driving member (204) and the second rotating driving member (301) are both motors, and the linear driving member (205) is a cylinder; And / or, the tank cover (4) is screwed to the tank body (1), and a handle (402) and a fan are also provided on the top of the tank cover (4); And / or, a movable bottom plate (6) is fixedly connected to the bottom of the tank body (1).

10. The powder drying equipment according to claim 9, characterized in that: The diameter of the movable bottom plate (6) is greater than the diameter of the tank body (1); a guardrail is provided on the top of the movable bottom plate (6) and a universal wheel is provided on the bottom.

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