Powder conveying system

Abstract

The utility model discloses a powder conveying system which comprises a feeding pipe used for conveying powder, the tail end of the feeding pipe is connected with a target tank, the head end of the feeding pipe is provided with a first dustproof net and an air pump, the target tank is connected with an exhaust port, and the exhaust port is provided with a second dustproof net; the storage tank is used for temporarily storing powder, a discharge port is formed in the lower end of the storage tank, and the discharge port communicates with the feeding pipe through a vertically-arranged feeding pipe; the concentration detection assembly is used for detecting the concentration of powder in the feeding pipe, the concentration detection assembly comprises a plastic pipe, the two ends of the plastic pipe are communicated, the plastic pipe is connected to the feeding pipe, and a microwave emitter and a microwave receiver which are symmetrical in position are arranged on the outer walls of the two sides of the plastic pipe respectively; and the display screen is electrically connected with the microwave emitter and the microwave receiver, the concentration of the powder in the feeding pipe is detected through the concentration detection assembly, so that real-time monitoring is carried out, and danger and blockage caused by too high concentration of the powder are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder conveying technical field, specifically relate to a powder conveying system. BACKGROUND

[0002] In prior art, powder is usually conveyed from a storage tank to a target tank by using a pipeline in a positive pressure mode, and the powder is prone to cause pipeline blockage and explosion when reaching a certain concentration during the pipeline conveying. However, the traditional powder conveying system does not have a monitoring mechanism for the powder concentration, and thus has a high risk coefficient during powder conveying. SUMMARY

[0003] In order to solve the above problems in prior art, the utility model provides a powder conveying system.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0005] A powder conveying system comprises:

[0006] A feeding pipe is used for conveying powder, the end of the feeding pipe is connected to a target tank, the first end of the feeding pipe is provided with a first dust screen and an air pump, the target tank is connected with an exhaust port, and the exhaust port is provided with a second dust screen.

[0007] A storage tank is used for temporarily storing powder, the lower end of the storage tank is provided with a discharge port, and the discharge port is communicated with the feeding pipe through a vertically arranged feeding pipe.

[0008] A concentration detection assembly is used for detecting the concentration of the powder in the feeding pipe, and the concentration detection assembly comprises a plastic pipe, the two ends of the plastic pipe are communicated, the plastic pipe is connected to the feeding pipe, and the two side outer walls of the plastic pipe are respectively provided with a microwave transmitter and a microwave receiver which are symmetrically arranged.

[0009] A display screen is electrically connected with the microwave transmitter and the microwave receiver.

[0010] Preferably, the lower end of the storage tank is fixedly provided with a horizontally arranged conveying pipe, the two ends of the conveying pipe are sealingly arranged, the upper end of the conveying pipe is connected to the discharge port, a conveying auger is matched arranged in the conveying pipe, one end of the conveying pipe is provided with a motor for driving the conveying auger, the lower end of the other end of the conveying pipe is provided with a connecting port, and the connecting port is connected to the upper end of the feeding pipe.

[0011] Preferably, the exhaust port is provided with a back flushing assembly for the second dust screen, the back flushing assembly comprises a tee pipe, the tee pipe is connected with the exhaust port, and the tee pipe is located outside the second dust screen, the tee pipe is provided with a tee valve, the tee pipe is connected with a back flushing pipe, the back flushing pipe is installed with a fan assembly, and the end of the back flushing pipe is provided with a third dust screen.

[0012] Preferably, the outer wall of the storage tank is installed with a first vibrator.

[0013] Preferably, the outer wall of the feeding pipe is installed with a plurality of second vibrators along the length direction of the feeding pipe.

[0014] Compared with the prior art, the beneficial effects are:

[0015] The utility model discloses simple structure, convenient to use, through the concentration detection subassembly detection powder concentration in feeding pipe, to carry out real -time monitoring, avoid the danger and jam that powder concentration is too high bring. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the cross section schematic drawing of the utility model.

[0017] Mark: 1, feeding pipe;2, target tank;3, first dust screen;4, air pump;5, storage tank;6, discharge port;7, conveying pipe;8, conveying auger;9, motor;10, feeding pipe;11, plastic pipe;12, microwave emitter;13, microwave receiver;14, exhaust port;15, second dust screen;16, tee pipe;17, fan assembly;18, third dust screen;19, first vibrator;20, second vibrator. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] A powder conveying system, comprising: a feeding pipe 1, a storage tank 5, a concentration detection assembly and a display screen.

[0020] The feeding pipe 1 is used for conveying powder, the end of the feeding pipe 1 is connected with a target tank 2, the first end of the feeding pipe 1 is provided with a first dust screen 3 and an air pump 4, the target tank 2 is connected with an exhaust port 14, and the exhaust port 14 is provided with a second dust screen 15;The positive pressure conveying powder generated by starting the air pump 4.

[0021] A storage tank 5 is arranged for temporarily storing the powder, and a discharge port 6 is arranged at the lower end of the storage tank 5, and the discharge port 6 is communicated with the feeding pipe 1 through a vertically arranged feeding pipe 10; the powder is discharged from the discharge port 6 at the lower end of the storage tank 5 and vertically falls into the feeding pipe 1 through the feeding pipe 10 for air flow conveying.

[0022] A concentration detection assembly is arranged for detecting the concentration of the powder in the feeding pipe 1, and the concentration detection assembly comprises a plastic pipe 11, both ends of the plastic pipe 11 are communicated, the plastic pipe 11 is connected with the feeding pipe 1, and positionally symmetrical microwave transmitters 12 and microwave receivers 13 are arranged on the outer walls of both sides of the plastic pipe 11; the microwave transmitter 12 and the microwave receiver 13 are both existing technologies, and when the microwave emitted by the microwave transmitter 12 passes through the plastic pipe 11, part of the microwave is absorbed by the passing powder, so that the microwave signal received by the microwave receiver 13 can be used to judge the attenuated microwave, thereby judging the concentration of the powder.

[0023] A display screen is electrically connected with the microwave transmitter 12 and the microwave receiver 13.

[0024] The concentration of the powder in the feeding pipe 1 is detected through the concentration detection assembly, so that real-time monitoring is realized, and the danger caused by the excessively high concentration of the powder and the blockage are avoided.

[0025] In the preferred technical solution, a horizontally arranged conveying pipe 7 is fixedly arranged at the lower end of the storage tank 5, both ends of the conveying pipe 7 are sealingly arranged, the upper end of the conveying pipe 7 is connected with the discharge port 6, a conveying screw 8 is matched arranged in the conveying pipe 7, a motor 9 for driving the conveying screw 8 is arranged at one end of the conveying pipe 7, and a connecting port is arranged at the lower end of the other end of the conveying pipe 7, and the connecting port is connected with the upper end of the feeding pipe 10.

[0026] The powder in the storage tank 5 falls into the conveying pipe 7 through the discharge port 6 at the lower end, and then falls vertically into the feeding pipe 10 through the connecting port by rotating the conveying screw 8, and the start-stop and rotating speed of the conveying screw 8 can control the start-stop and speed of the feeding.

[0027] In the preferred technical solution, the exhaust port 14 is provided with a blowback assembly for the second dust screen 15, the blowback assembly comprises a tee pipe 16, the tee pipe 16 is connected with the exhaust port 14, and the tee pipe 16 is located outside the second dust screen 15, the tee pipe 16 is provided with a tee valve, the tee pipe 16 is connected with a blowback pipe, the blowback pipe is installed with a fan assembly 17, and the end of the blowback pipe is provided with a third dust screen 18.

[0028] Since the inner side of the second dust screen 15 is easy to stick with powder, thereby causing blockage, the reverse blowing pipe is communicated with the exhaust port 14 through the three-way valve, the fan assembly 17 is started, air flow is formed to blow from the outer side to the second dust screen 15, thereby blowing off the blocked powder on the second dust screen 15, and the second dust screen 15 is cleaned.

[0029] Preferably, a first vibrator 19 is mounted on the outer wall of the storage tank 5.

[0030] Preferably, a plurality of second vibrators 20 are mounted on the outer wall of the feeding pipe 1 along the length direction thereof.

[0031] The powder is prevented from being blocked in the feeding pipe 1.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated 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.

[0033] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0034] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A powder conveying system, characterized in that, include: Feeding pipe (1) is used to convey powder. The end of the feeding pipe (1) is connected to the target tank (2). The beginning of the feeding pipe (1) is provided with a first dustproof net (3) and an air pump (4). The target tank (2) is connected with an exhaust port (14). The exhaust port (14) is provided with a second dustproof net (15). Storage tank (5) is used to temporarily store powder. The lower end of the storage tank (5) is provided with a discharge port (6). The discharge port (6) is connected to the feeding pipe (1) through a vertically arranged feeding pipe (10). A concentration detection component is used to detect the concentration of powder in the feeding tube (1). The concentration detection component includes a plastic tube (11) with both ends connected. The plastic tube (11) is connected to the feeding tube (1). A microwave transmitter (12) and a microwave receiver (13) are respectively provided on the outer walls of both sides of the plastic tube (11). The display screen is electrically connected to the microwave transmitter (12) and the microwave receiver (13).

2. The powder conveying system as described in claim 1, characterized in that, The lower end of the storage tank (5) is fixedly provided with a horizontally arranged conveying pipe (7). Both ends of the conveying pipe (7) are sealed. The upper end of the conveying pipe (7) is connected to the discharge port (6). A conveying auger (8) is matched inside the conveying pipe (7). One end of the conveying pipe (7) is provided with a motor (9) to drive the conveying auger (8). The lower end of the other end of the conveying pipe (7) is provided with a connection port, which is connected to the upper end of the feeding pipe (10).

3. The powder conveying system as described in claim 1, characterized in that, The exhaust port (14) is provided with a backflush assembly for the second dust screen (15). The backflush assembly includes a three-way pipe (16), which is connected to the exhaust port (14) and is located outside the second dust screen (15). The three-way pipe (16) is provided with a three-way valve. The three-way pipe (16) is connected to a backflush pipe, which is equipped with a fan assembly (17). The end of the backflush pipe is provided with a third dust screen (18).

4. The powder conveying system as described in claim 1, characterized in that, A first vibrator (19) is installed on the outer wall of the storage tank (5).

5. The powder conveying system as described in claim 1, characterized in that, Several second vibrators (20) are installed at intervals along the length of the outer wall of the feeding pipe (1).

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