Paddle pollution discharge mechanism of hollow paddle dryer

Abstract

The utility model discloses a hollow blade dryer blade pollution discharge mechanism, which comprises a jacket and a hollow blade, and is characterized in that the bottom of the hollow blade is welded and fixed on the jacket, a steam delivery pipe is arranged in the jacket, one end of the steam delivery pipe is connected with a hollow mandrel in a penetrating manner, the hollow mandrel is fixedly connected with the jacket, and the hollow blade is fixedly connected with the jacket. The other end of the steam conveying pipe is connected with the right side of an inner cavity of the hollow blade in a penetrating mode, a baffle is fixedly welded to the surface of the inner cavity of the hollow blade and located on the left side of the inner cavity of the hollow blade, a taper hole is formed in the clamping sleeve, does not penetrate through the inner surface of the clamping sleeve and is located under the baffle, and the two sides of the taper hole are inclined faces. A trapezoidal groove is formed in the clamping sleeve, penetrates through the upper surface and the lower surface of the clamping sleeve and is located below a bottom hole of the taper hole, the angle of the inclined face of the trapezoidal groove is consistent with that of the taper hole, and the problems that condensate water of an existing hollow blade drying machine is left and flows back to a steam conveying pipe are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hollow blade dryers, in particular to a blade sewage discharge mechanism of a hollow blade dryer. Background Art

[0002] The hollow paddle dryer is a horizontal agitator dryer that primarily utilizes heat conduction. Its main structure consists of a jacketed housing, a hollow, low-speed rotating shaft, and hollow paddles. Water vapor, a heat medium, circulates within the hollow shaft. Steam distribution pipes within the hollow paddles deliver this vapor to the blade cavities and jackets. As the blades rotate, they exchange heat with the material they contact, ultimately draining the dried material. After the heat exchange is complete, condensed water flows through diversion holes to the shaft holes for discharge.

[0003] At present, in the existing hollow paddle dryer, the condensed water generated after the heat exchange is completed remains inside the blade and even flows back into the steam delivery pipe, lowering the temperature inside the blade, the jacket and the water vapor, thereby reducing the heat exchange efficiency and increasing the material drying cost.

[0004] Therefore, a hollow blade dryer blade drainage mechanism is proposed to optimize the hollow blade and the interior of the jacket to prevent condensed water from remaining and flowing back into the steam delivery pipe, and to maintain the temperature of the hollow blade inner cavity, jacket and steam delivery pipe, so as to improve the heat exchange efficiency of the hollow blade dryer. Utility Model Content

[0005] The purpose of the present utility model is to provide a hollow blade dryer for existing devices to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a hollow blade dryer blade discharge mechanism, comprising a jacket and a hollow blade, the bottom of the hollow blade is welded and fixed to the jacket, a steam delivery pipe is arranged inside the jacket, one end of the steam delivery pipe passes through and is connected to a hollow core shaft, the hollow core shaft is fixedly connected to the jacket, the other end of the steam delivery pipe passes through and is connected to the right side of the inner cavity of the hollow blade, a baffle is welded and fixed to the surface of the inner cavity of the hollow blade, the baffle is located on the left side of the inner cavity of the hollow blade, a tapered hole is provided on the jacket, the tapered hole does not pass through the inner surface of the jacket, the tapered hole is located directly below the baffle, the two sides of the tapered hole are inclined surfaces, a trapezoidal groove is provided in the jacket, the trapezoidal groove passes through the upper and lower surfaces of the jacket, and the trapezoidal groove is located below the bottom hole of the tapered hole.

[0007] The present invention further states that the slope angle of the trapezoidal groove is consistent with that of the tapered hole.

[0008] The utility model further describes that pistons are fixedly connected to both sides of the bottom of the hollow core shaft.

[0009] The utility model further illustrates that the baffle is in an arc shape.

[0010] The utility model further illustrates that a pair of inclined holes are opened on the outer surface of the steam delivery pipe.

[0011] The utility model further illustrates that a water stop valve is fixedly connected to the outer surface of the steam delivery pipe, and the water stop valve is located below the inclined hole, above the jacket and in the inner cavity of the hollow blade.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention can guide the condensed water to be discharged quickly by providing the arc-shaped baffle and the tapered hole;

[0013] A trapezoidal groove is provided in the jacket that passes through the upper and lower surfaces, and a sealing groove is formed by a piston on the jacket surface to store condensed water, thereby preventing the condensed water from spilling out when the hollow core shaft rotates;

[0014] By setting up inclined holes and water stop valves, condensed water is prevented from flowing back into the steam delivery pipe, thus maintaining the temperature of the dryer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is the main view - full cross-sectional view of the utility model;

[0018] Figure 3 It is a left side view - full cross-sectional view of the utility model;

[0019] Figure 4 This is an enlarged schematic diagram of area A of the present utility model;

[0020] In the figure: 1. Jacket; 2. Hollow core shaft; 3. Hollow blade; 4. Steam delivery pipe; 5. Baffle; 6. Tapered hole; 7. Trapezoidal groove; 8. Oblique hole; 9. Water stop valve; 10. Piston. DETAILED DESCRIPTION

[0021] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides a technical solution: a paddle sewage discharge mechanism of a hollow paddle dryer, comprising a jacket 1 and a hollow paddle 3. The bottom of the hollow paddle 3 is welded and fixed on the jacket 1. A steam conveying pipe 4 is arranged inside the jacket 1. One end of the steam conveying pipe 4 passes through and is connected to the hollow core shaft 2. The hollow core shaft 2 is fixedly connected to the jacket 1. The other end of the steam conveying pipe 4 passes through and is connected to the right side of the inner cavity of the hollow paddle 3. A baffle 5 is welded and fixed on the inner cavity surface of the hollow paddle 3. The baffle 5 is located on the left side of the inner cavity of the hollow paddle 3. A tapered hole 6 is opened on the jacket 1. The tapered hole 6 does not pass through the inner surface of the jacket 1. The tapered hole 6 is located directly below the baffle 5. Both sides of the tapered hole 6 are inclined surfaces, which are convenient for guiding a large amount of condensed water to flow quickly. A trapezoidal groove 7 is opened in the jacket 1. The trapezoidal groove 7 passes through the upper and lower surfaces of the jacket 1. The trapezoidal groove 7 is located below the bottom hole of the tapered hole 6. The inclined angle of the trapezoidal groove 7 is consistent with the tapered hole 6, which is convenient for placing the condensed water generated by heat exchange to prevent the condensed water from flowing back.

[0023] Pistons 10 are fixedly connected to both sides of the bottom of the hollow core shaft 2 to prevent the condensed water inside the trapezoidal groove 7 from spilling out when the dryer rotates and works, affecting the water vapor temperature;

[0024] The baffle 5 is in an arc shape, which facilitates guiding the condensed water generated during heat exchange to flow into the tapered hole 6, and blocks the condensed water in the trapezoidal groove 7 from flowing back when the dryer blades rotate.

[0025] A pair of inclined holes 8 are provided on the outer surface of the steam delivery pipe 4, so that when the condensed water flows back to the steam delivery pipe 4, part of the condensed water can be discharged by utilizing the inclined surface of the inclined holes 8;

[0026] A water stop valve 9 is fixedly connected to the outer surface of the steam delivery pipe 4. The water stop valve 9 is located below the inclined hole 8, above the jacket 1 and in the inner cavity of the hollow blade 3 to prevent the remaining condensed water from continuing to flow back.

[0027] Working principle:

[0028] When the hollow blade dryer is working, the hollow core shaft 2 rotates counterclockwise, steam is input into the hollow core shaft 2, and enters the inner cavity of the hollow blade 3 through one end of the steam delivery pipe 4;

[0029] When steam is exchanging heat in the inner cavity of the hollow blade 3, condensed water will be continuously condensed. A portion of the condensed water will be separated by the baffle 5, and a portion will flow along the arc surface of the baffle 5 to the tapered hole 6. The tapered hole 6 has inclined surfaces on both sides, which guide this portion of condensed water and guide it into the trapezoidal groove 7.

[0030] The condensed water that is not separated by the baffle 5 flows back into the steam delivery pipe 4 and is blocked by the inclined hole 8 in the pipe. The condensed water flows out of the steam delivery pipe 4 along the inclined surface of the inclined hole 8 and enters the inner cavity of the hollow blade 3. The condensed water passing through the inclined hole 8 will be blocked by the water stop valve 9 on the outer surface of the steam delivery pipe 4, and finally returns to the inner cavity of the hollow blade 3 as the blade rotates, and flows into the trapezoidal groove 7, thereby preventing the condensed water generated by heat exchange from remaining and flowing back into the steam delivery pipe 4, maintaining the internal temperature of the hollow blade dryer, improving the heat exchange efficiency during operation, and saving production costs.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0032] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A hollow blade dryer blade drainage mechanism, comprising a jacket (1) and a hollow blade (3), characterized in that: The bottom of the hollow blade (3) is welded and fixed on the jacket (1); a steam delivery pipe (4) is provided inside the jacket (1); one end of the steam delivery pipe (4) passes through and is connected to the hollow core shaft (2); the hollow core shaft (2) is fixedly connected to the jacket (1); the other end of the steam delivery pipe (4) passes through and is connected to the right side of the inner cavity of the hollow blade (3); a baffle (5) is welded and fixed on the inner cavity surface of the hollow blade (3); the baffle (5) is located on the left side of the inner cavity of the hollow blade (3); a tapered hole (6) is provided on the jacket (1); the tapered hole (6) does not pass through the inner surface of the jacket (1); the tapered hole (6) is located directly below the baffle (5); both sides of the tapered hole (6) are inclined surfaces; a trapezoidal groove (7) is provided in the jacket (1); the trapezoidal groove (7) passes through the upper and lower surfaces of the jacket (1); the trapezoidal groove (7) is located below the bottom hole of the tapered hole (6).

2. The hollow blade dryer blade drainage mechanism according to claim 1, characterized in that: The inclined surface angle of the trapezoidal groove (7) is consistent with that of the tapered hole (6).

3. The hollow blade dryer blade drainage mechanism according to claim 2, characterized in that: Pistons (10) are fixedly connected to both sides of the bottom of the hollow core shaft (2).

4. The hollow blade dryer blade drainage mechanism according to claim 3, characterized in that: The baffle (5) is in an arc shape.

5. The hollow blade dryer blade drainage mechanism according to claim 4, characterized in that: A pair of inclined holes (8) are provided on the outer surface of the steam delivery pipe (4).

6. The hollow blade dryer blade drainage mechanism according to claim 5, characterized in that: A water stop valve (9) is fixedly connected to the outer surface of the steam delivery pipe (4), and the water stop valve (9) is located below the inclined hole (8), above the jacket (1) and in the inner cavity of the hollow blade (3).

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