Powder spraying device

Abstract

The utility model relates to a powder spraying device which comprises a machine frame and a stirring material barrel installed on the machine frame, a feeding pipeline is connected to the side, close to the top, of the stirring material barrel, a feeding hopper is installed on the feeding pipeline, and the bottom of the stirring material barrel is connected with a discharging main pipeline below the stirring material barrel through a draught fan. And the discharging main pipeline is connected with the conveying spray pipe on the left side. According to the utility model, the coarse filter screen is arranged on the feeding pipeline and is used for carrying out primary screening treatment on fed materials, and the stirred materials firstly pass through the discharging branch pipeline and are introduced into the detection tank for detection treatment, so that the particle size of the discharged materials is controlled, and the uniformity of powder spraying is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to powder spraying devices, in particular to a powder spraying device. Background Art

[0002] In the chemical processing and production process, the powdered materials need to be stirred evenly before powder spraying.

[0003] After extensive searching, I discovered Chinese patent publication number CN212713618U, which discloses a powder spraying device and a powder spraying device for bottom-blowing powder spraying in converters. The powder spraying device includes a powder spraying tank, which is connected to a pressurized air source, a powder silo, and a dust collector. The lower portion of the powder spraying tank is a conical section, which is connected to a conical section air source. The bottom of the conical section, a fluidizing device, a powder shut-off valve, a fluidizing device, a powder regulating valve, and a powder spraying mechanism are sequentially connected. The powder spraying device for bottom-blowing powder spraying in converters includes a powder spraying device, the powder spraying mechanism of which is connected to a distributor via a powder conveying pipe, a powder flow meter is provided on the powder conveying pipe, and the distributor is connected to a bottom-blowing nozzle. The powder airflow ejected by the powder spraying device is stable, avoiding sudden and large fluctuations in the powder airflow, and has a good powder spraying effect. It is suitable for the complex working conditions of the converter bottom-blowing powder spraying process.

[0004] In summary, in the existing powder spraying device, the particle size of the material before entering the mixing barrel is not uniformly controlled, and the particle size used for powder spraying after stirring is also the same, resulting in a relatively mediocre powder spraying effect.

[0005] In view of the above-mentioned defects, the present designer actively carried out research and innovation in order to create a powder spraying device to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve any of the above technical problems, the purpose of the present invention is to provide a powder spraying device.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A powder spraying device includes a frame and a mixing barrel mounted on the frame, a feed pipe connected to one side of the mixing barrel near the top, a feed hopper mounted on the feed pipe, and a fan connected to a main discharge pipe below the bottom of the mixing barrel, which is connected to a delivery nozzle on the left side.

[0009] A coarse filter is installed between the feed pipe and the feed hopper, a discharge branch pipe is provided on the right side of the discharge main pipe, a three-way valve is installed at the connection between the discharge main pipe, the discharge branch pipe and the conveying nozzle, a detection tank is installed on the right side of the discharge branch pipe, and a fine filter is installed between the discharge branch pipe and the detection tank.

[0010] As a further improvement of the present invention, a ladder is installed on one side of the frame.

[0011] As a further improvement of the present invention, a stirring motor is installed at the top middle position of the stirring barrel. The stirring motor drives the stirring rod below and located in the stirring barrel to rotate. A plurality of stirring blades are evenly distributed on the stirring rod from top to bottom.

[0012] As a further improvement of the present invention, the feed pipe is connected to a distribution pipe located in the mixing barrel, and a plurality of distribution openings are evenly distributed on the distribution pipe.

[0013] As a further improvement of the present invention, the material distribution pipe is a circular ring structure, and the number of the material distribution pipe is one.

[0014] As a further improvement of the present invention, the distribution pipe is a circular ring structure, and there are several distribution pipes which are evenly distributed in the mixing barrel along the vertical direction.

[0015] As a further improvement of the present invention, the material distribution pipe is arranged in a spiral structure from top to bottom or from bottom to top.

[0016] As a further improvement of the present invention, a scale layer is provided on the detection tank from bottom to top.

[0017] As a further improvement of the present invention, the delivery nozzle is connected to an external spray gun.

[0018] By means of the above solution, the present invention has at least the following advantages:

[0019] The utility model installs a coarse filter on the feed pipe to perform preliminary screening on the feed material. The material after stirring is first led to the detection tank through the discharge branch pipe for detection processing, thereby realizing the control of the discharge particle size and ensuring the uniformity of powder spraying.

[0020] The utility model realizes uniform feeding of materials in the mixing barrel through the material distribution pipe, and can further improve the uniformity of the materials in the mixing barrel by means of the stirring structure.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of a powder spraying device of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the mixing barrel;

[0025] Figure 3 yes Figure 1 Top view of the middle fabric tube;

[0026] Figure 4 yes Figure 2 A structural schematic diagram of another embodiment of the stirring barrel.

[0027] The meanings of the reference numerals in the figures are as follows.

[0028] Frame 1, escalator 2, mixing barrel 3, feed hopper 4, coarse filter 5, feed pipe 6, fan 7, discharge main pipe 8, three-way valve 9, discharge branch pipe 10, detection tank 11, fine filter 12, delivery nozzle 13, stirring motor 14, stirring rod 15, stirring blade 16, distribution pipe 17, distribution port 18. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0031] Example

[0032] like Figures 1 to 4 As shown,

[0033] A powder spraying device includes a frame 1 and a mixing barrel 3 mounted on the frame 1. A ladder 2 is installed on one side of the frame 1. A feed pipe 6 is connected to the mixing barrel 3 near the top. A feed hopper 4 is installed on the feed pipe 6. The bottom of the mixing barrel 3 is connected to a main discharge pipe 8 below via a fan 7. The main discharge pipe 8 is connected to a delivery nozzle 13 on the left side, and the delivery nozzle 13 is connected to an external spray gun.

[0034] 1. Material conveying structure on mixing barrel 3:

[0035] A coarse filter 5 is installed between the feed pipe 6 and the feed hopper 4. A discharge branch pipe 10 is installed to the right of the discharge main pipe 8. A three-way valve 9 is installed at the connection between the discharge main pipe 8, the discharge branch pipe 10, and the delivery nozzle 13. A detection tank 11 is installed to the right of the discharge branch pipe 10, and a fine filter 12 is installed between the discharge branch pipe 10 and the detection tank 11. In addition, a scale layer is provided from bottom to top on the detection tank 11.

[0036] 2. Fabric structure:

[0037] The feed pipe 6 is connected to a distribution pipe 17 located in the mixing barrel 3 , and a plurality of distribution ports 18 are evenly distributed on the distribution pipe 17 .

[0038] 1) The material distribution pipe 17 is a circular ring structure, and the number of the material distribution pipe 17 is one.

[0039] 2) The distribution pipe 17 is a circular ring structure. There are several distribution pipes 17 and they are evenly distributed in the mixing barrel 3 along the vertical direction.

[0040] 3) The material distribution pipe 17 is arranged in a spiral structure from top to bottom or from bottom to top.

[0041] 3. Mixing structure in mixing barrel 3:

[0042] A stirring motor 14 is installed at the top middle position of the stirring barrel 3. The stirring motor 14 drives a stirring rod 15 located below and inside the stirring barrel 3 to rotate. A plurality of stirring blades 16 are evenly distributed on the stirring rod 15 from top to bottom.

[0043] Brief description of the working process of this utility model:

[0044] The material initially enters the feed pipe 6 through the feed hopper 4. The coarse filter 5 prevents the entry of oversized material or impurities. The material is then conveyed to the mixing barrel 3 through the multiple distribution ports 18 on the distribution pipe 17. The material is agitated by the agitation mechanism and discharged through the main discharge pipe 8. First, the three-way valve 9 is closed on the side facing the delivery nozzle 13. The fan 7 discharges the material into the discharge branch pipe 10 and passes through the fine filter 12 into the detection tank 11. The scale layer reflects the amount of material entering the detection tank 11. An external scale can be used to determine the volume of material entering the detection tank 11 per unit time and thus the material uniformity. (If the material particle size is not uniform enough, it will clog outside the fine filter 12, resulting in a reduced volume of material entering the detection tank 11 per unit time.) Afterwards, the three-way valve 9 is closed on the side facing the discharge branch pipe 10, and the fan 7 discharges the material into the delivery nozzle 13.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A powder spraying device, comprising a frame (1) and a mixing barrel (3) mounted on the frame (1), a feeding pipe (6) being connected to one side of the mixing barrel (3) near the top, a feeding hopper (4) being mounted on the feeding pipe (6), a fan (7) being connected to a main discharge pipe (8) below the mixing barrel (3), and the main discharge pipe (8) being connected to a delivery nozzle (13) on the left side; Its characteristics are: A coarse filter (5) is installed between the feed pipe (6) and the feed hopper (4); a discharge branch pipe (10) is provided on the right side of the discharge main pipe (8); a three-way valve (9) is installed at the connection between the discharge main pipe (8), the discharge branch pipe (10) and the delivery nozzle (13); a detection tank (11) is installed on the right side of the discharge branch pipe (10); and a fine filter (12) is installed between the discharge branch pipe (10) and the detection tank (11).

2. A powder spraying device according to claim 1, characterized in that: An escalator (2) is installed on one side of the frame (1).

3. A powder spraying device according to claim 1, characterized in that: A stirring motor (14) is installed at the top middle position of the stirring barrel (3), and the stirring motor (14) drives a stirring rod (15) located below and inside the stirring barrel (3) to rotate. A plurality of stirring blades (16) are evenly distributed on the stirring rod (15) from top to bottom.

4. A powder spraying device according to claim 1, characterized in that: The feed pipe (6) is connected to a distribution pipe (17) located in the mixing barrel (3), and a plurality of distribution ports (18) are evenly distributed on the distribution pipe (17).

5. A powder spraying device according to claim 4, characterized in that: The material distribution pipe (17) is a circular ring structure, and the number of the material distribution pipe (17) is one.

6. A powder spraying device according to claim 4, characterized in that: The distribution pipe (17) is a circular ring structure. There are several distribution pipes (17) and they are evenly distributed in the mixing barrel (3) along the vertical direction.

7. A powder spraying device according to claim 4, characterized in that: The material distribution pipe (17) is arranged in a spiral structure from top to bottom or from bottom to top.

8. A powder spraying device according to claim 1, characterized in that: A scale layer is provided on the detection tank (11) from bottom to top.

9. A powder spraying device according to claim 1, characterized in that: The delivery nozzle (13) is connected to an external spray gun.

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