Novel cement kiln system inching air locking valve

Abstract

A novel cement kiln system inching air locking valve comprises a discharging pipe, a feeding port is formed in the top of the discharging pipe, a discharging port is formed in the bottom of the discharging pipe, a side sealing plate is arranged in the discharging pipe, a discharging port is formed in the middle of the side sealing plate, an openable valve plate is arranged below the side sealing plate, and the valve plate is connected to the discharging pipe through a plate turning mechanism. A mechanism box is arranged on the side wall of the discharging pipe, and a turning plate mechanism is arranged in the mechanism box. The turning plate mechanism comprises a driving shaft rotationally connected with the mechanism box, the driving shaft horizontally penetrates to the outer side of the mechanism box in the length direction of the mechanism box, the two ends of the driving shaft are connected with gravity driving assemblies, the middle of the driving shaft is fixedly connected with a turning plate frame, and the turning plate frame downwards inclines and extends into the discharging pipe from the mechanism box, and an upper rotating shaft of the turning plate frame is rotationally connected with a valve plate. The valve plate is larger than the discharging opening in size. Micro opening of the valve plate can be achieved, the stability of the discharging amount is guaranteed, and air leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement kiln denitration technical field, concretely relates to a novel cement kiln system micro lock air valve. BACKGROUND

[0002] The lock air valve (also called flap valve) functions to keep the discharging uniform and unobstructed and to seal. It is installed between the proper position of the heat exchange pipeline inlet between the discharging pipe of the upper cyclone and the outlet of the lower cyclone. When the material does not fall into the lock air valve, the valve plate of the lock air valve will be closed to prevent the air from passing through. When the material falls into the lock air valve, the valve plate of the lock air valve will be properly opened to minimize the air passing through when the material passes through.

[0003] At present, the existing lock air valve has the following problems. One is that the discharging gap is prone to air leakage. When the internal air leakage is large, it will lead to the decrease of the dust collection efficiency of the cyclone and the coking and blocking of the cone part of the cyclone, and will also make the material on the upper part of the lock air valve unstable during the passing process. The other is that there is no micro motion structure on the lock air valve, which is not convenient for reducing the opening angle of the lock air valve when the material is less and reducing the air leakage. UTILITY MODEL CONTENT

[0004] In view of the problems and deficiencies in the prior art, the utility model provides a novel cement kiln system micro lock air valve.

[0005] The utility model technical scheme is as follows:

[0006] A novel cement kiln system micro lock air valve, comprising a discharging pipe, the top of the discharging pipe is provided with a feeding port, the bottom is provided with a discharging port, the discharging pipe is provided with a side sealing plate inside, the middle part of the side sealing plate is provided with a discharging port, the side sealing plate below is provided with an openable valve plate, and the valve plate is connected to the discharging pipe through a flap mechanism.

[0007] The sidewall of the discharging pipe is provided with a mechanism box, and the mechanism box is provided with a flap mechanism inside.

[0008] The flap mechanism comprises a driving shaft which is rotationally connected with the mechanism box, the driving shaft penetrates to the outside of the mechanism box along the length direction of the mechanism box and is connected with a gravity driving assembly at both ends, a flap frame is fixedly connected to the middle part of the driving shaft, the flap frame extends downward from the mechanism box to the inside of the discharging pipe, a rotating shaft is rotationally connected with the valve plate on the flap frame, and the size of the valve plate is greater than that of the discharging port.

[0009] Specifically, the gravity driving assembly is designed by the weight of the material, so that when the weight of the material reaches the set gravity, the torque on the valve plate is greater than the torque of the gravity driving assembly under the action of gravity, the valve plate is opened, and the material passes through the gap between the valve plate and the side sealing plate; when the weight of the material is less than the set gravity, the torque on the valve plate is less than the torque of the gravity driving assembly under the action of gravity, and the valve plate is pressed against the bottom surface of the side sealing plate to prevent air leakage. In addition, the valve plate is rotatably connected to the turning plate frame, so that when the amount of material is small, the valve plate rotates around the rotating shaft at a small angle, so that the angle of the valve plate swinging is small and the frequency is high, so that the material is evenly discharged, air leakage is avoided, the energy consumption of the preheater is reduced, and the preheater is less likely to be blocked.

[0010] According to a specific embodiment, the included angle between the side sealing plate and the axis of the discharging pipe is 45°-55°, preferably 50°.

[0011] Further, the rotating angle between the valve plate and the turning plate frame is 4°-8°, preferably 5°.

[0012] In order to improve the strength of the valve plate, the valve plate is connected to the rotating shaft through the ear plate arranged on the bottom of the valve plate, and the bottom surface of the valve plate is provided with a plurality of reinforcing ribs.

[0013] According to a specific embodiment, the gravity driving assembly comprises a driving rod connected perpendicularly to the driving shaft, and a weight connected to the end of the driving rod away from the driving shaft.

[0014] The driving rod is also fixedly connected with a sector plate located between the driving rod and the outer wall of the mechanism box, the sector plate is provided with a plurality of positioning holes arranged along a circular arc and centered on the driving shaft, the driving rod is rotatably connected with the driving shaft and is adjustably connected with the sector plate through the positioning holes.

[0015] According to a specific embodiment, the discharging pipe comprises an inner pipe and an outer pipe arranged coaxially with a gap, and the side sealing plate is arranged in the inner pipe. In order to improve the heat preservation of the discharging pipe, heat insulating castable is arranged in the gap between the inner pipe and the outer pipe.

[0016] According to a specific embodiment, the side sealing plate is an oval plate arranged on the upper part of the inner pipe, and the valve plate is an oval plate.

[0017] A novel micro-motion air lock valve for a cement kiln system, comprising a discharging pipe, the top of the discharging pipe is provided with a feeding port, the bottom is provided with a discharging port, the discharging pipe is provided with a side sealing plate, the middle part of the side sealing plate is provided with a material falling port, the lower part of the side sealing plate is provided with an openable valve plate, and the valve plate is connected to the discharging pipe through a turning plate mechanism; comprising two symmetrically arranged side sealing plates and a mechanism box, the lower part of the mechanism box is provided with a valve plate which is opened, and the valve plate is connected to the mechanism box through two turning plate mechanisms.

[0018] The beneficial effects of the utility model are as follows:

[0019] The valve plate is connected with the lower part of the turnover plate frame through a rotating shaft to realize the micro-motion opening of the valve plate, so that the stability of the discharging amount is ensured. The valve plate frame is further connected with the driving shaft through the upper part to ensure that the valve plate has a larger opening angle when the discharging amount is large.

[0020] The side sealing plate is cooperated with the valve plate in millimeter level, so that the space for discharging is basically eliminated, the air leakage phenomenon of the valve plate is basically eliminated, and the probability of the skin on both sides of the movable valve plate is reduced. In addition, the driving rod is connected with the driving shaft through the sector plate, and the sector plate is connected with the driving rod through the positioning hole, so that the angle adjustment of the driving rod is realized, so that the weight of the material for opening the valve plate is adjusted without changing the weight. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of an embodiment;

[0022] Figure 2 It is Figure 1 A sectional view of an axial view;

[0023] Figure 3 It is a perspective view of the connection between the turnover mechanism and the valve plate;

[0024] 1, discharging pipe; 11, outer cylinder; 12, inner cylinder; 13, side sealing plate; 2, mechanism box; 3, turnover plate mechanism; 4, driving shaft; 5, turnover plate frame; 6, rotating shaft; 7, valve plate; 8, gravity driving assembly; 81, driving rod; 82, weight; 83, sector plate. DETAILED DESCRIPTION

[0025] The technical means adopted to achieve the predetermined invention purpose of the present application will be further described below in combination with the drawings in the embodiments of the present application.

[0026] Embodiment one

[0027] Referring to Figures 1-3 Fig. 1, a novel cement kiln system micro-motion air lock valve includes a discharging pipe 1, the top of the discharging pipe 1 is provided with a feeding port, the bottom is provided with a discharging port, the discharging pipe 1 is provided with a side sealing plate 13 inside, the middle part of the side sealing plate 13 is provided with a discharging port, and the valve plate 7 below the side sealing plate 13 is provided with an openable valve plate 7, the valve plate 7 is connected to the discharging pipe 1 through the turnover plate mechanism 3;

[0028] The side wall of the discharging pipe 1 is provided with a mechanism box 2, and the mechanism box 2 is provided with a turnover plate mechanism 3 inside;

[0029] The turnover plate mechanism 3 includes a driving shaft 4, which is rotatably connected with the mechanism box 2, the driving shaft 4 penetrates to the outside of the mechanism box 2 along the length direction of the mechanism box 2 and is connected with a gravity driving assembly 8 at both ends, the middle part of the driving shaft 4 is fixedly connected with a turnover plate frame 5, the turnover plate frame 5 extends downwardly and obliquely from the mechanism box 2 to the inside of the discharging pipe 1, and the rotating shaft 6 is rotatably connected with the valve plate 7 on the turnover plate frame 5, and the size of the valve plate 7 is larger than the size of the discharging port.

[0030] Specifically, the gravity driving assembly 8 is designed by the weight of the material, so that when the weight of the material reaches the set gravity, the torque on the valve plate 7 is greater than the torque of the gravity driving assembly 8 under the action of gravity, so that the valve plate 7 is opened, and the material passes through the gap between the valve plate 7 and the side sealing plate 13. When the weight of the material is less than the set gravity, the torque on the valve plate 7 is less than the torque of the gravity driving assembly 8 under the action of gravity, and the valve plate 7 is pressed against the bottom surface of the side sealing plate 13 to prevent air leakage. In addition, the valve plate 7 is rotatably connected to the turning plate frame 5, so that when the amount of material is small, the valve plate 7 rotates at a small angle around the rotating shaft 6, so that the angle of the valve plate 7 is small and the frequency is high, so that the material is evenly discharged and air leakage is less likely to occur, the energy consumption of the preheater is reduced, and the preheater is less likely to be blocked.

[0031] According to a specific embodiment, the angle between the side sealing plate 13 and the axis of the discharging pipe 1 is 45°-55°, preferably 50°.

[0032] Further, the rotating angle between the valve plate 7 and the turning plate frame 5 is 4°-8°, preferably 5°.

[0033] In order to improve the strength of the valve plate 7, the valve plate 7 is connected to the rotating shaft 6 through the ear plate arranged on the bottom of the valve plate 7, and the bottom surface of the valve plate 7 is provided with a plurality of reinforcing ribs.

[0034] According to a specific embodiment, the gravity driving assembly 8 includes a driving rod 81 connected perpendicularly to the driving shaft 4, and a weight 82 connected to the end of the driving rod 81 away from the driving shaft 4.

[0035] The driving rod 81 is also fixedly connected with a sector plate 83 located between the driving rod 81 and the outer wall of the mechanism box 2, and the sector plate 83 is provided with a plurality of positioning holes arranged along a circular arc with the driving shaft 4 as the center. The driving rod 81 is rotatably connected with the driving shaft 4 and is adjustably connected with the sector plate 83 through the positioning holes.

[0036] According to a specific embodiment, the discharging pipe 1 includes an inner pipe and an outer pipe arranged coaxially with a gap, and the side sealing plate 13 is arranged in the inner pipe. In order to improve the heat preservation of the discharging pipe 1, heat insulating castable is arranged in the gap between the inner pipe and the outer pipe.

[0037] According to a specific embodiment, the side sealing plate 13 is an oval plate arranged on the upper part of the inner pipe, and the valve plate 7 is an oval plate.

[0038] Embodiment two

[0039] A new type of micro-motion air lock valve for cement kiln system includes two symmetrically arranged side sealing plates 13 and a mechanism box 2, and a valve plate 7 is arranged below the mechanism box 2. The valve plate 7 is connected to the mechanism box 2 through two turning plate mechanisms 3. The other parts are the same as those of embodiment one, and the specific structure will not be described again.

[0040] The above is the preferred embodiment of the present application, but the present application is not limited to the above embodiments and examples, various changes, equivalent replacements, improvements, etc. made within the knowledge range of those skilled in the art without departing from the concept of the present application should be included in the protection scope of the present application.

Claims

1. A novel cement kiln system micro-motion air lock valve, comprising a feeding pipe (1), the top of which is provided with a feeding port, and the bottom of which is provided with a discharging port, a side sealing plate (13) is arranged in the feeding pipe (1), the middle part of the side sealing plate is provided with a discharging port, and an openable valve plate (7) is arranged below the side sealing plate (13), and the valve plate is connected to the feeding pipe (1) through a flap mechanism (3); Characterized in that, a mechanism box (2) is arranged on the side wall of the feeding pipe (1), and the flap mechanism (3) is arranged in the mechanism box (2); the flap mechanism (3) comprises a driving shaft (4) which is rotationally connected to the mechanism box (2), the driving shaft (4) horizontally penetrates the mechanism box (2) along the length direction thereof and is connected to a gravity driving assembly (8) at both ends, and a flap frame (5) is fixedly connected to the middle part of the driving shaft (4), the flap frame (5) extends downward from the mechanism box (2) to the inside of the feeding pipe (1), and a rotating shaft (6) is rotationally connected to the valve plate (7) on the flap frame (5), and the size of the valve plate (7) is greater than that of the discharging port.

2. The micro-bleed airlock valve of claim 1, wherein, The included angle between the side sealing plate (13) and the axis of the feeding pipe (1) is 45°-55°.

3. The micro-bleed lockout valve of claim 2, wherein, The rotating angle between the valve plate (7) and the flap frame (5) is 4°-8°.

4. The micro-bleed lockout valve of claim 3, wherein, The valve plate (7) is connected to the rotating shaft (6) through an ear plate arranged on the bottom of the valve plate (7), and a plurality of reinforcing ribs are arranged on the bottom surface of the valve plate.

5. The micro-bleed airlock valve according to any one of claims 1-4, wherein, The gravity driving assembly (8) comprises a driving rod (81) which is perpendicularly connected to the driving shaft (4), and a weight (82) which is connected to the end of the driving rod (81) away from the driving shaft (4).

6. The micro-bleed lockout valve of claim 5, wherein, A sector plate (83) is further fixedly connected to the driving rod (81) and located between the driving rod and the outer wall of the mechanism box (2), a plurality of positioning holes are arranged on the sector plate (83) and are evenly distributed along a circular arc with the driving shaft (4) as the center, the driving rod (81) is rotationally connected to the driving shaft (4) and is adjustably connected to the sector plate (83) through the positioning holes.

7. The micro-bleed airlock valve of claim 6, wherein, The feeding pipe (1) comprises an inner pipe (12) and an outer pipe (11) which are coaxially arranged with a gap, and the side sealing plate (13) is arranged in the inner pipe (12).

8. The micro-bleed lockout valve of claim 7, wherein, Heat insulating castable is arranged in the gap between the inner pipe (12) and the outer pipe (11).

9. The micro-bleed airlock valve of claim 6, wherein, The side sealing plate (13) is an oval plate and is arranged on the upper part of the inner pipe (12), and the valve plate (7) is also an oval plate.

10. The micro-bleed airlock valve of claim 6, wherein, Two symmetrically arranged side sealing plates (13) and mechanism boxes (2) are arranged, and a split valve plate (7) is arranged below the side sealing plates (13) and the mechanism boxes (2), and the valve plate (7) is connected to the mechanism boxes (2) through two flap mechanisms (3).

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