Powder feeder and reaction tank

Abstract

The utility model provides a powder feeder which comprises a conveying pipe, a feeding hopper is fixedly installed at one end of the conveying pipe, and a discharging opening is formed in the end face of the other end of the conveying pipe in an open mode. The conveying screw is coaxially arranged in the conveying pipe, and one end of the conveying screw is further fixedly connected with a cover plate capable of being opened and closed with the discharging opening; the driving motor reciprocates relative to the conveying pipe, a rotating shaft of the driving motor is further fixedly connected with a connecting shaft, and the connecting shaft slidably penetrates through the conveying pipe and is fixedly connected with the end, away from the cover plate, of the conveying screw; the joint of the feeding hopper and the conveying pipe is always located between the two ends of the conveying screw. The utility model solves the problem that in the prior art, liquid-containing gas possibly rushes into the conveying pipe to cause retention. The utility model further provides a reaction tank.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction tank structures, in particular to a powder feeder and a reaction tank. Background Art

[0002] During the chemical reaction process, the reaction tank is generally used as a reaction container, and a feed port is provided on it for materials to enter. Usually, various materials, such as liquids, powders, etc., need to be added in the reaction process. At the beginning, they can be uniformly put in through the feed port. However, during the reaction, it is generally not suitable to open the feed port for feeding. Liquid materials can be added through a pipeline, and a valve can be set on the pipeline to control the opening and closing. However, for powder materials, it is not suitable to add them with a pipeline. Specifically, if the powder materials are added through the pipeline, they may stick to the pipe wall of the pipeline, which may cause the retention of some materials. In the prior art, the powder materials can also be fed by a spiral propulsion method. Specifically, a conveying pipe is connected to the reaction tank, and a conveying spiral is provided in the conveying pipe. The conveying spiral can push the powder materials in the conveying pipe to move, thereby realizing the addition of the powder materials, so that the powder materials can be prevented from being retained in the spirally propelled pipeline. However, the discharge end of the conveying pipe generally needs to be arranged in the reaction tank. During the reaction, liquid gas (such as water vapor) may rush into the conveying pipe and be retained in the conveying pipe. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a powder feeder, which solves the problem in the prior art that liquid-containing gas may rush into the conveying pipe and cause retention.

[0004] According to an embodiment of the utility model, a powder feeder comprises:

[0005] A conveying pipe, one end of which is fixedly provided with a feed hopper, and the other end of which is open and provided with a discharge port;

[0006] A conveying screw, the conveying screw is coaxially arranged in the conveying pipe, and one end of the conveying screw is fixedly connected to a cover plate that can be opened and closed with the discharge port;

[0007] A driving motor, the driving motor reciprocates relative to the conveying pipe, and the rotating shaft of the driving motor is also fixedly connected to a connecting shaft, the connecting shaft slides through the conveying pipe and is fixedly connected to the end of the conveying screw away from the cover plate;

[0008] The connection between the feed hopper and the conveying pipe is always located between the two ends of the conveying screw.

[0009] In the above embodiment, when feeding is in progress, the driving motor is close to the conveying pipe so that the cover plate is separated from the discharge port of the conveying pipe. The discharge port is opened and the driving motor is running to realize feeding. After the feeding is finished, the driving motor is separated from the conveying pipe so that the cover plate closes the discharge port. This can prevent liquid gas from rushing into the conveying pipe, thereby solving the problem in the prior art that liquid gas may rush into the conveying pipe and cause retention.

[0010] Furthermore, a sliding disk is fixedly connected between the conveying screw and the connecting shaft, and the sliding disk is also slidably matched with the inner wall of the conveying pipe.

[0011] Furthermore, a balancing hole communicating with the inside and outside of the conveying pipe is also provided on the conveying pipe, and the balancing hole and the conveying screw are respectively located on both sides of the sliding disk.

[0012] Furthermore, a boss is provided at one end of the cover plate facing the conveying pipe, and the discharge port is adapted for the boss to be accommodated and slidably fitted therein.

[0013] Furthermore, the cover plate also includes an annular cover portion surrounding the boss, and the annular cover portion can abut against the end surface of the conveying pipe.

[0014] Furthermore, the conveying screw is provided with a spiral blade separated from the boss.

[0015] Furthermore, a telescopic driver is fixedly mounted on the outer wall of the conveying pipe. The telescopic driver includes a telescopic rod, and the telescopic rod is fixedly connected to the driving motor. The moving direction of the telescopic rod is parallel to the axis of the conveying screw.

[0016] Furthermore, the telescopic rod is fixedly connected to a mounting plate, and the driving motor is fixedly connected to the mounting plate.

[0017] Furthermore, the conveying pipe is also fixedly connected to a guide plate, a guide hole is provided on the guide plate, and the telescopic rod is slidably matched with the guide hole.

[0018] According to an embodiment, a reaction tank is also provided, which includes a reaction tank body and the above-mentioned powder feeder, wherein the conveying pipe is fixedly connected to the reaction tank body, and the feed hopper and the discharge port are respectively located outside and inside the reaction tank body.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The driving motor is arranged to move back and forth relative to the conveying pipe, and the conveying screw can also move synchronously in the conveying pipe, thereby opening or closing the cover plate. When opened, feeding operation is performed. After completion, closing can prevent external liquid gas from rushing into the conveying pipe, thereby solving the problem in the prior art that liquid gas may rush into the conveying pipe and cause retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1The overall structure of an embodiment of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of an embodiment of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the overall structure of another embodiment of the utility model;

[0024] In the above drawings:

[0025] Conveying pipe 1, feed hopper 2, discharge port 3, conveying screw 4, spiral blade 5, cover plate 6, drive motor 7, connecting shaft 8, telescopic driver 9, telescopic rod 10, mounting plate 11, guide plate 12, sliding plate 13, balancing hole 14, boss 15, reaction tank body 16. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In an exemplary embodiment, Figure 1 , 2 As shown, this embodiment provides a powder feeder, which includes:

[0029] A conveying pipe 1, a feed hopper 2 is fixedly mounted on one end of the conveying pipe 1, and a discharge port 3 is opened at the other end;

[0030] A conveying screw 4, which is coaxially arranged in the conveying pipe 1, and one end of the conveying screw 4 is also fixedly connected to a cover plate 6 that can be opened and closed with the discharge port 3;

[0031] A driving motor 7, the driving motor 7 reciprocates relative to the conveying pipe 1, and the rotating shaft of the driving motor 7 is also fixedly connected to a connecting shaft 8, the connecting shaft 8 slides through the conveying pipe 1 and is fixedly connected to the end of the conveying screw 4 away from the cover plate 6;

[0032] The connection between the feed hopper 2 and the conveying pipe 1 is always located between the two ends of the conveying screw 4 .

[0033] In the above embodiment, when feeding is in progress, the driving motor 7 is close to the conveying pipe 1 so that the cover plate 6 is separated from the discharge port 3 of the conveying pipe 1, the discharge port 3 is opened, and the driving motor 7 is running to realize feeding. After the feeding is finished, the driving motor 7 is separated from the conveying pipe 1 so that the cover plate 6 closes the discharge port 3, thereby preventing liquid-containing gas from rushing into the conveying pipe 1, thereby solving the problem in the prior art that liquid-containing gas may rush into the conveying pipe 1 and cause retention;

[0034] During specific operation, the drive motor 7 abuts against the end surface of the conveying pipe 1. At this time, the distance between the cover plate 6 and the discharge port 3 is the largest. The drive motor 7 is running, and the material (i.e., powder) is put in through the feed hopper 2, and then enters the conveying pipe 1. It moves toward the discharge port 3 as pushed by the conveying screw 4, and finally leaves the discharge port 3 to realize the addition of the material. After the end, the drive motor 7 can continue to run for a period of time to enable the material to be added more completely, and then stop running the drive motor 7, so that the drive motor 7 moves to the initial position (i.e., the position farthest from the conveying pipe 1), so that the cover plate 6 closes the discharge port 3;

[0035] Furthermore, in order to realize the relative movement of the driving motor 7, a telescopic driver 9 is fixedly installed on the outer wall of the conveying pipe 1, and the telescopic driver 9 includes a telescopic rod 10 and the telescopic rod 10 is fixedly connected to the driving motor 7. The moving direction of the telescopic rod 10 is parallel to the axis of the conveying screw 4, so that the movement of the driving motor 7 is driven by the telescopic driver 9, and the telescopic driver 9 can be a cylinder, or an oil cylinder, etc.; in order to facilitate the installation of the driving motor 7, the telescopic rod 10 is fixedly connected to a mounting plate 11, and the driving motor 7 is fixedly connected to the mounting plate 11. The conveying pipe 1 is also fixedly connected to a guide plate 12, and a guide hole is provided on the guide plate 12. The telescopic rod 10 is slidably matched with the guide hole. The guide plate 12 provides guidance for the telescopic rod 10 when the telescopic driver 9 is running, so that the telescopic rod 10 runs more smoothly, thereby also improving the running stability of the driving motor 7.

[0036] In a more detailed exemplary embodiment, Figure 1 , 2 As shown, a sliding plate 13 is fixedly connected between the conveying screw 4 and the connecting shaft 8, and the sliding plate 13 also slides with the inner wall of the conveying pipe 1. The sliding plate 13 slides relative to the conveying pipe 1 when the connecting shaft 8 moves (the driving motor 7 moves, and the connecting shaft 8 moves synchronously therewith), but is always located on the side of the feed hopper 2 away from the cover plate 6, so that the material can be blocked to prevent the material from accidentally moving to one end of the connecting shaft 8, and at the same time, it can also provide support for the connecting shaft 8 and the conveying screw 4, making the operation more stable;

[0037] Furthermore, the conveying pipe 1 is provided with a balancing hole 14 connecting the inside and the outside, and the balancing hole 14 and the conveying screw 4 are respectively located on both sides of the sliding disk 13, so that one end of the connecting shaft 8 in the conveying pipe 1 is always connected to the outside, and the operation can be carried out smoothly.

[0038] In a further exemplary embodiment, Figure 1 , 2 As shown, a boss 15 is further provided at one end of the cover plate 6 facing the conveying pipe 1, and the discharge port 3 is for the boss 15 to be accommodated and slidably fitted. The outer wall surface of the boss 15 can be an inclined annular surface, and the corresponding feed port is also a corresponding annular surface. The two annular surfaces have a larger contact area, thereby achieving a better closing effect. Furthermore, the cover plate 6 also includes a ring cover portion surrounding the outside of the boss 15, and the ring cover portion can be abutted against the end face of the conveying pipe 1, so that the discharge port 3 can be closed to a greater extent, thereby achieving a better closing effect.

[0039] In a further exemplary embodiment, Figure 1 , 2 As shown, the conveying screw 4 is provided with a spiral blade 5 separated from the boss 15. Specifically, when the discharge port 3 is opened, the end surface of the spiral blade 5 is flush with the end surface of the discharge port 3 of the conveying pipe 1, or slightly exceeds the discharge port 3, so that continuous feeding can be achieved without having to be exposed to a greater extent outside the conveying pipe 1.

[0040] like Figure 3 As shown, in another exemplary embodiment, a reaction tank is provided, which includes a reaction tank body 16, the above-mentioned powder feeder, the conveying pipe 1 is fixedly connected to the reaction tank body 16, and the feed hopper 2 and the discharge port 3 are respectively located outside and inside the reaction tank body 16. That is, the material is put into the feed hopper 2 outside the reaction tank body 16, and then the material is added through the conveying pipe 1. After completion, the driving motor 7 moves so that the cover plate 6 covers the discharge port 3, and the feeding operation can be completed.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A powder feeder, It is characterized in that include: A conveying pipe, wherein a feed hopper is fixedly mounted on one end of the conveying pipe and a discharge port is opened on the other end; A conveying screw, wherein the conveying screw is coaxially arranged in the conveying pipe, and one end of the conveying screw is fixedly connected to a cover plate that can be opened and closed with the discharge port; A driving motor, the driving motor reciprocates relative to the conveying pipe, and the rotating shaft of the driving motor is also fixedly connected to a connecting shaft, the connecting shaft slides through the conveying pipe and is fixedly connected to the end of the conveying screw away from the cover plate; Wherein, the connection between the feed hopper and the conveying pipe is always located between the two ends of the conveying screw.

2. The powder feeder according to claim 1, It is characterized in that A sliding disk is fixedly connected between the conveying screw and the connecting shaft, and the sliding disk is also slidably matched with the inner wall of the conveying pipe.

3. The powder feeder according to claim 2, It is characterized in that The conveying pipe is also provided with a balancing hole communicating with the inside and outside thereof, and the balancing hole and the conveying screw are respectively located on both sides of the sliding disk.

4. The powder feeder according to claim 1, It is characterized in that A boss is also provided at one end of the cover plate facing the conveying pipe, and the discharge port is provided for the boss to be accommodated and slidably fitted therein.

5. The powder feeder according to claim 4, It is characterized in that The cover plate further comprises an annular cover portion surrounding the boss, and the annular cover portion can abut against the end surface of the conveying pipe.

6. The powder feeder according to claim 4, It is characterized in that The conveying screw is provided with a spiral blade separated from the boss.

7. The powder feeder according to any one of claims 1 to 6, It is characterized in that A telescopic driver is fixedly mounted on the outer wall of the conveying pipe. The telescopic driver comprises a telescopic rod, and the telescopic rod is fixedly connected to the driving motor. The moving direction of the telescopic rod is parallel to the axis of the conveying screw.

8. The powder feeder according to claim 7, It is characterized in that The telescopic rod is fixedly connected to a mounting plate, and the driving motor is fixedly connected to the mounting plate.

9. The powder feeder according to claim 7, It is characterized in that The conveying pipe is also fixedly connected to a guide plate, the guide plate is provided with a guide hole, and the telescopic rod is slidably matched with the guide hole.

10. A reaction tank, It is characterized in that It comprises a reaction tank body and also comprises a powder feeder as described in any one of claims 1 to 9, wherein the conveying pipe is fixedly connected to the reaction tank body, and the feed hopper and the discharge port are respectively located outside and inside the reaction tank body.

Images