Limestone feed opening anti-blocking rapping device

Abstract

The utility model provides an anti-blocking rapping device for a limestone feed opening, which relates to the technical field of thermal power generation production and comprises a feed pipe, a feeder, a gate valve, a rapping mechanism, a shell, an air inlet port, an exhaust port, a rotating part, a clamping groove, a side plate, a fan blade, a striking component, a fixing rod, a top block and a flange. The outer surface of the fixing rod is provided with a spring, the spring is located between the ejector block and the shell, one side of the side plate is provided with a side rod, and the upper surface of the side rod is provided with a guide rod matched with the flange. The density of limestone slurry located below the discharging pipe meets the standard, SO2 absorption of an absorption tower is facilitated, normal production work is guaranteed, meanwhile, through the arranged sensing device, vibration can be started when it is detected that the discharging pipe is blocked, vibration can be stopped when the discharging pipe is not blocked, and therefore energy can be saved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation production, in particular to a limestone feed opening anti-blocking vibration device. Background Art

[0002] In the process of thermal power generation, limestone slurry is needed for desulfurization. Conventional limestone slurry is obtained by adding limestone powder into raw water and stirring. The component of limestone slurry is a limestone powder bin added to the raw water tank. When limestone slurry is needed, the lower gate valve of the limestone powder bin is opened, and the limestone powder enters the raw water tank and is stirred by the agitator to form limestone slurry.

[0003] When making limestone slurry, due to the small fineness and high viscosity of limestone powder, material accumulation and blockage may occur in the feed pipe when the plug valve at the bottom of the limestone powder bin is opened. Since there is no blockage display, it can only be judged based on the density of the limestone slurry, which is difficult to judge. If blockage occurs when the absorption tower urgently needs to be replenished, and the density of the limestone slurry is too small, it will cause the absorption tower SO 2 The concentration continued to be high, and the liquid level in the absorption tower increased, affecting production. Utility Model Content

[0004] The utility model aims to provide a limestone feeding port anti-blocking rapping device, aiming to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the anti-blocking vibration device of the limestone feed port includes a feed pipe and a feeder for conveying materials into the feed pipe, a gate valve is provided on the feed pipe, a vibration mechanism is provided on the feed pipe and between the feeder and the gate valve, the vibration mechanism includes a shell surrounding the outer surface of the feed pipe, the outer surface of the feed pipe of the shell forms a sealed cavity, the outer surface of the shell is provided with an air inlet port and an exhaust port, the interior of the shell is provided with a rotating part, the inner wall of the shell is provided with a slot, the rotating part rotates in the slot, and the rotating part includes Two groups of side plates are arranged parallel to each other, and fan blades are evenly arranged between the two side plates. External compressed air acts on the fan blades through the air inlet port to drive the rotating part to rotate in the slot. Multiple groups of striking components are arranged between the shell and the discharge pipe and on both sides of the rotating part. The striking component includes a fixed rod arranged between the shell and the discharge pipe, a top block is slidably connected to the fixed rod, a flange is arranged at one end of the top block close to the shell, a spring is arranged on the outer surface of the fixed rod, and the spring is located between the top block and the shell. A side rod is arranged on one side of the side plate, and a guide rod matching the flange is arranged on the upper surface of the side rod.

[0006] Preferably, one end of the top block close to the feed tube is an arc-shaped surface, and the arc-shaped surface of the top block fits on the outer surface of the feed tube.

[0007] Preferably, one end of the spring is fixedly connected to one end of the top block.

[0008] Preferably, a protective ring is provided on the outer surface of the feed tube, and the protective ring is located between the feed tube and the top block.

[0009] Preferably, the feed pipe is in a truncated cone shape.

[0010] Preferably, a sensing device is provided at the bottom of the feed pipe, and the sensing device is used to detect whether the feed pipe is blocked.

[0011] The beneficial effects of the utility model are:

[0012] The device can solve the problem of limestone powder blockage in the feed pipe through high-frequency vibration, so that the density of the limestone slurry below the feed pipe meets the standard, which is beneficial for the absorption tower to absorb SO2 and ensure normal production work. At the same time, through the set sensing device, the vibration can be started when the feed pipe is detected to be blocked, and the vibration can be stopped when the feed pipe is not blocked, thereby saving energy and having a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a housing and a feed pipe according to a specific embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the air intake port of a specific embodiment of the utility model.

[0016] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0017] Figure 5 It is a top view of the interior of the shell of a specific embodiment of the utility model.

[0018] Figure 6 It is a structural schematic diagram of a feed tube and a protection ring in a specific embodiment of the utility model.

[0019] In the figure: 1. feed pipe; 2. feeder; 3. gate valve; 4. shell; 5. air inlet port; 6. exhaust port; 7. slot; 8. side plate; 9. fan blade; 10. fixing rod; 11. top block; 12. flange; 13. spring; 14. side rod; 15. guide rod; 16. protection ring; 17. induction device. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-6 As shown, a limestone feed port anti-blocking vibration device comprises a feed pipe 1, and also comprises a feeder 2 for conveying materials into the feed pipe 1, a gate valve 3 is arranged on the feed pipe 1, a vibration mechanism is arranged on the feed pipe 1 and between the feeder 2 and the gate valve 3, the vibration mechanism comprises a shell 4 surrounding the outer surface of the feed pipe 1, the outer surface of the feed pipe 1 of the shell 4 forms a sealed cavity, the outer surface of the shell 4 is provided with an air inlet port 5 and an exhaust port 6, the interior of the shell 4 is provided with a rotating part, the inner wall of the shell 4 is provided with a slot 7, the rotating part rotates in the slot 7, the rotating part comprises two sets of side plates 8 arranged in parallel with each other, and the space between the two side plates 8 The fan blades 9 are evenly arranged, and the external compressed air acts on the fan blades 9 through the air inlet port 5 to drive the rotating part to rotate in the slot 7. A plurality of striking components are arranged between the shell 4 and the discharge pipe 1 and on both sides of the rotating part. The striking component includes a fixed rod 10 arranged between the shell 4 and the discharge pipe 1, and a top block 11 is slidably connected to the fixed rod 10. A flange 12 is arranged at one end of the top block 11 close to the shell 4. A spring 13 is arranged on the outer surface of the fixed rod 10, and the spring 13 is located between the top block 11 and the shell 4. A side rod 14 is arranged on one side of the side plate 8, and a guide rod 15 matching the flange 12 is arranged on the upper surface of the side rod 14.

[0022] The feeder 2 is used to convey limestone powder to the lower feeding pipe 1. When the gate valve 3 is closed, the limestone powder accumulates on the upper part of the gate valve 3. Due to the small fineness and high viscosity of the limestone powder, the limestone powder is easily blocked at the gate valve 3 after the gate valve 3 is opened. At this time, the limestone powder in the lower feeding pipe 1 cannot fall normally through the gate valve 3, making the density of the limestone slurry below too small, resulting in the absorption tower SO 2 The concentration remains high.

[0023] The shell 4 is fixed to the outer surface of the feeding tube 1 by welding or bolting. External compressed gas is introduced into the shell 4 through the air inlet port 5 to introduce high-pressure air, and the gas in the shell 4 is discharged to the outside of the shell 4 through the exhaust port 6. After the compressed gas is delivered into the shell 4 through the air inlet port 5, the fan blades 9 drive the side plates 8 to rotate in the slots 7 of the shell 4 under the blowing of the compressed gas. When the side plates 8 rotate, the side rods 14 and the guide rods 15 are driven to rotate. The guide rods 15 are tilted. When the guide rods 15 and the flanges 12 are just in contact, one end of the top block 11 abuts against the outer surface of the feeding tube 1. When the guide rods 15 are subsequently rotated, the side plates 8 and the guide rods 15 are rotated. During the movement, the flange 12 will be continuously squeezed, so that the spring 13 on the fixed rod 10 is compressed. At this time, a certain distance will appear between the top block 11 and the outer surface of the discharge pipe 1. When the guide rod 15 passes through the flange 12, there is no direct contact between the guide rod 15 and the flange 12. Under the action of the spring 13, the top block 11 is pushed to quickly hit the outer surface of the discharge pipe 1. The top block 11 around the discharge pipe 1 hits the outer surface of the discharge pipe 1 at the same time, so that the vibration is transmitted to the blocked limestone powder in the discharge pipe 1. The limestone powder can pass through the gate valve 3 and fall normally through the vibration, so that the density of the limestone slurry under the discharge pipe 1 is appropriate.

[0024] Furthermore, one end of the top block 11 close to the discharge pipe 1 is an arc-shaped surface, and the arc-shaped surface of the top block 11 fits against the outer surface of the discharge pipe 1, thereby increasing the contact area between the top block 11 and the discharge pipe 1 and preventing the top block 11 from colliding with the outer surface of the discharge pipe 1 at high frequency, thereby causing a large degree of deformation of the outer surface of the discharge pipe 1.

[0025] Furthermore, one end of the spring 13 is fixedly connected to one end of the top block 11, so that the spring 13 and the top block 11 can be installed on the fixing rod 10 at the same time, thereby reducing the number of small parts and the probability of loss.

[0026] Furthermore, a protective ring 16 is provided on the outer surface of the feed tube 1, and the protective ring 16 is located between the feed tube 1 and the top block 11. The material of the protective ring 16 is metal. The protective ring 16 can prevent the top block 11 from directly contacting the feed tube 1. When there is a problem with the protective ring 16, the protective ring 16 can be directly replaced.

[0027] Furthermore, the feed pipe 1 is in a truncated cone shape, which can further reduce the possibility of blockage of the feed pipe 1.

[0028] Furthermore, a sensing device 17 is provided at the bottom of the feed pipe 1, and the sensing device 17 is used to detect whether the feed pipe 1 is blocked. The sensing device 17 is a pressure sensor, which is connected to the DCS system and interlocked. When the gate valve 3 is opened, the limestone powder impacts the pressure sensor at the bottom of the feed pipe 1. When the pressure sensor has a pressure value, it means that the feed pipe 1 is not blocked. When the pressure sensor has no pressure value, it means that the feed pipe 1 is blocked. At this time, the external compressed gas interlock is started to vibrate the outer wall of the feed pipe 1 until the pressure sensor is The current pressure value is reached, at which time the external compressed gas interlock is closed, and the external compressed gas stops being delivered; the sensing device 17 can also be an infrared catcher, which is connected to the DCS system and interlocked. When the gate valve 3 is opened, the infrared catcher can capture the falling of limestone powder. When the infrared catcher does not capture the falling of limestone powder, it means that the feed pipe 1 is blocked. At this time, the external compressed gas interlock is started, and the outer wall of the feed pipe 1 is vibrated until the infrared catcher captures the falling of limestone powder. At this time, the external compressed gas interlock is closed, and the external compressed gas stops being delivered.

[0029] The device can solve the problem of limestone powder blockage in the feed pipe 1 through high-frequency vibration, so that the density of the limestone slurry below the feed pipe 1 meets the standard, which is beneficial for the absorption tower to absorb SO2 and ensure normal production work. At the same time, through the set sensing device 17, the vibration can be started when the feed pipe 1 is detected to be blocked, and the vibration can be stopped when the feed pipe 1 is not blocked, thereby saving energy and having a good use effect.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A limestone feed port anti-blocking vibration device, characterized in that: The invention comprises a feeding pipe (1) and a feeder (2) for conveying materials into the feeding pipe (1); a gate valve (3) is arranged on the feeding pipe (1); a vibration mechanism is arranged on the feeding pipe (1) and between the feeder (2) and the gate valve (3); the vibration mechanism comprises a shell (4) surrounding the outer surface of the feeding pipe (1); the outer surface of the feeding pipe (1) and the shell (4) form a sealed cavity; the outer surface of the shell (4) is provided with an air inlet port (5) and an air outlet port (6); a rotating part is arranged inside the shell (4); a slot (7) is arranged on the inner wall of the shell (4); the rotating part rotates in the slot (7); the rotating part comprises two sets of side plates (8) arranged parallel to each other; fan blades (9) are evenly arranged between the two side plates (8); External compressed air acts on the fan blades (9) through the air inlet port (5), driving the rotating part to rotate in the slot (7). A plurality of striking components are respectively arranged between the shell (4) and the discharge pipe (1) and on both sides of the rotating part. The striking components include a fixed rod (10) arranged between the shell (4) and the discharge pipe (1). A top block (11) is slidably connected to the fixed rod (10). A flange (12) is arranged at one end of the top block (11) close to the shell (4). A spring (13) is arranged on the outer surface of the fixed rod (10). The spring (13) is located between the top block (11) and the shell (4). A side rod (14) is arranged on one side of the side plate (8). A guide rod (15) matching the flange (12) is arranged on the upper surface of the side rod (14).

2. The anti-blocking rapping device for limestone feed port according to claim 1 is characterized in that: One end of the top block (11) close to the feed tube (1) is an arc-shaped surface, and the arc-shaped surface of the top block (11) fits on the outer surface of the feed tube (1).

3. The anti-blocking rapping device for limestone feed port according to claim 1 is characterized in that: One end of the spring (13) is fixedly connected to one end of the top block (11).

4. The anti-blocking rapping device for limestone feed port according to claim 1 is characterized in that: The outer surface of the feed tube (1) is provided with a protective ring (16), and the protective ring (16) is located between the feed tube (1) and the top block (11).

5. The anti-blocking rapping device for the limestone feed port according to any one of claims 1 to 4, characterized in that: The feed tube (1) is in the shape of a truncated cone.

6. The anti-blocking rapping device for limestone feed port according to claim 5 is characterized in that: A sensing device (17) is provided at the bottom of the feed pipe (1), and the sensing device (17) is used to detect whether the feed pipe (1) is blocked.

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