A flue gas circulating fluidized bed dry desulfurization equipment

Abstract

The utility model belongs to the field of desulfurization equipment, concretely relates to a flue gas circulating fluidized bed dry method desulfurization equipment, including the casing, the inside of casing is connected with the connecting seat through screw thread, the upper end fixedly connected with support rod of connecting seat. The utility model of connecting seat's effect is through the design, flue gas is input through the connecting seat, then can input compressed air under the action of air compressor, and the dry absorbent in the material box can enter the inside of rotating pipe and output through the nozzle and contact with flue gas, the chemical reaction of absorbent and sulfur dioxide generates solid sulfate, thereby realizes the desulfurization purpose, in the output process of dry absorbent, can drive the driving wheel to rotate under the action of motor, the rotation of transmission wheel and connecting shaft is realized by the rotation of driving wheel drive belt, and then the rotation of nozzle can realize the rotary output of dry absorbent, improves the output range and uniformity of dry absorbent and makes dry absorbent and flue gas contact complete desulfurization effect better.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, specifically to a flue gas circulating fluidized bed dry desulfurization equipment. Background Technology

[0002] Flue gas circulating fluidized bed dry desulfurization equipment is a commonly used device for removing sulfur dioxide from flue gas emitted from coal-fired power plants and industrial boilers. Its working principle involves directly contacting the flue gas containing sulfur dioxide with a drying absorbent such as limestone (CaCO3) or gypsum (CaSO4), causing the sulfur dioxide to be absorbed and converted into sulfate.

[0003] In current desulfurization equipment, the limestone distribution is uneven during the contact process between the limestone and flue gas, which affects the desulfurization effect. Furthermore, after sulfur dioxide is absorbed and converted into sulfate, it is collected through a sieve plate. When the sieve plate becomes clogged with particulate matter, it affects the passage of subsequent flue gas. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas circulating fluidized bed dry desulfurization equipment, which solves the problem of uneven limestone output affecting the flue gas desulfurization effect, and also solves the problem of easy clogging of the sieve plate when collecting sulfate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas circulating fluidized bed dry desulfurization device, comprising a shell, a connecting seat connected internally by threads, a support rod fixedly connected to the upper end of the connecting seat, a sieve plate slidably adjustable on the outer side of the support rod, a connecting port fixedly connected to the right end of the shell, a cyclone separator fixedly connected to the right end of the connecting port, a slag discharge port provided at the bottom of the cyclone separator, a material box fixedly connected to the right end of the shell, the material box storing a drying absorbent, the drying absorbent being limestone, an air compressor fixedly installed at the right end of the material box, a vibration mechanism provided on the sieve plate, and a desulfurization mechanism provided on the shell.

[0006] Preferably, a support ring is fixedly sleeved on the outer side of the cyclone separator, and the support ring is fixedly connected to the shell. By designing the support ring, the cyclone separator can be supported and fixed.

[0007] Preferably, the slag discharge port is fixedly connected to the material box, and a solenoid valve is installed on the slag discharge port. The slag discharge port is designed for the discharge of the absorbent after separation from the gas.

[0008] Preferably, the vibration mechanism includes a motor. The motor is fixedly mounted on the left end of the housing, and a rotating shaft is fixedly connected to the right end of the motor's output end. The rotating shaft is rotatably connected to the housing. Multiple evenly distributed top blocks are fixedly connected to the lower end of the rotating shaft. The top blocks contact the screen plate. A guide rod is slidably sleeved inside the screen plate. A limit block is fixedly connected to the top of the guide rod, and a spring is provided on the outside of the guide rod. The guide rod is fixedly connected to a connecting seat. By designing the vibration mechanism, clogging of the screen plate can be prevented.

[0009] Preferably, one end of the spring is fixedly connected to the sieve plate, and the other end of the spring is fixedly connected to the connecting seat. The spring is designed so that its force can be applied to the sieve plate.

[0010] Preferably, the desulfurization mechanism includes a drive wheel, a drive wheel fixedly sleeved on the outer side of the rotating shaft, a belt sleeved on the outer side of the drive wheel, a transmission wheel sleeved on the inner side of the other end of the belt, a connecting shaft fixedly connected to the right end of the transmission wheel, the connecting shaft rotatably connected to the housing, a rotating tube fixedly connected to the right end of the connecting shaft, the rotating tube rotatably connected to the housing, a plurality of evenly distributed nozzles fixedly connected to the outer side of the rotating tube, and an input pipe rotatably sleeved inside the right end of the rotating tube. By designing the desulfurization mechanism, the rotary spraying of the absorbent can be achieved.

[0011] Preferably, the input pipe is fixedly connected to the housing and the material box. By designing the input pipe, the absorbent can be input into the rotating pipe through the input pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model utilizes a connecting seat design. Flue gas is input through the connecting seat, and then compressed air is input under the action of an air compressor. The drying absorbent inside the material box enters the rotating tube and is output through the nozzle to contact the flue gas. The absorbent reacts chemically with sulfur dioxide to generate solid sulfate, thereby achieving desulfurization. During the output of the drying absorbent, the motor drives the drive wheel to rotate, which in turn drives the belt to rotate, thus rotating the transmission wheel and the connecting shaft. This, in turn, enables the nozzle to rotate and output the drying absorbent, improving the output range and uniformity of the drying absorbent, resulting in better desulfurization through complete contact between the drying absorbent and the flue gas.

[0014] 2. This utility model utilizes the design of the sieve plate. After the absorbent reacts chemically with sulfur dioxide to form solid sulfate, it falls onto the surface of the sieve plate for collection. During the desulfurization process, the motor can drive the rotating shaft to rotate, which in turn drives the top block to rotate. The rotation of the top block can squeeze the sieve plate, causing it to move downwards. Combined with the elasticity of the spring, the sieve plate can vibrate in the vertical direction, shaking out the material that is blocked inside the sieve plate and preventing the sieve plate from clogging and affecting the flue gas passage. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0019] In the diagram: 1. Shell; 2. Connecting seat; 3. Support rod; 4. Screen plate; 5. Connecting port; 6. Cyclone separator; 7. Support ring; 8. Vibration mechanism; 9. Desulfurization mechanism; 10. Slag discharge port; 11. Material box; 12. Air compressor; 81. Motor; 82. Rotating shaft; 83. Top block; 84. Guide rod; 85. Spring; 86. Limiting block; 91. Drive wheel; 92. Belt; 93. Transmission wheel; 94. Connecting shaft; 95. Rotating pipe; 96. Nozzle; 97. Input pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2A flue gas circulating fluidized bed dry desulfurization device includes a shell 1. A connecting seat 2 is threadedly connected inside the shell 1. A support rod 3 is fixedly connected to the upper end of the connecting seat 2. A screen plate 4 is slidably adjusted on the outer side of the support rod 3. A connecting port 5 is fixedly connected to the right end of the shell 1. A cyclone separator 6 is fixedly connected to the right end of the connecting port 5. A support ring 7 is fixedly sleeved on the outer side of the cyclone separator 6 and is fixedly connected to the shell 1. The support ring 7 is designed to support and fix the cyclone separator 6. A slag discharge port 10 is provided at the bottom of the cyclone separator 6 and is fixedly connected to a material box 11. A solenoid valve is provided on the slag discharge port 10. The slag discharge port 10 is designed for discharging the absorbent after separation from the gas. A material box 11 is fixedly connected to the right end of the shell 1. The material box 11 stores a dry absorbent, which is limestone. An air compressor 12 is fixedly installed on the right end of the material box 11. A vibration mechanism 8 is provided on the screen plate 4. A desulfurization mechanism 9 is provided on the shell 1.

[0022] Please see Figure 1 , Figure 2 , Figure 3 The vibration mechanism 8 includes a motor 81. The motor 81 is fixedly installed on the left end of the housing 1. The right end of the output end of the motor 81 is fixedly connected to a rotating shaft 82. The rotating shaft 82 is rotatably connected to the housing 1. The lower end of the rotating shaft 82 is fixedly connected to a plurality of evenly distributed top blocks 83. The top blocks 83 are in contact with the screen plate 4. A guide rod 84 is slidably sleeved inside the screen plate 4. A limit block 86 is fixedly connected to the top of the guide rod 84. A spring 85 is provided on the outside of the guide rod 84. One end of the spring 85 is fixedly connected to the screen plate 4, and the other end of the spring 85 is fixedly connected to the connecting seat 2. By designing the spring 85, the force of the spring 85 can be applied to the screen plate 4. The guide rod 84 is fixedly connected to the connecting seat 2. By designing the vibration mechanism 8, the clogging of the screen plate 4 can be prevented.

[0023] Please see Figure 1 , Figure 2 , Figure 4 The desulfurization mechanism 9 includes a drive wheel 91, a drive wheel 91 fixedly sleeved on the outer side of a rotating shaft 82, a belt 92 sleeved on the outer side of the drive wheel 91, a transmission wheel 93 sleeved on the inner side of the other end of the belt 92, a connecting shaft 94 fixedly connected to the right end of the transmission wheel 93, the connecting shaft 94 being rotatably connected to the housing 1, a rotating pipe 95 fixedly connected to the right end of the connecting shaft 94, the rotating pipe 95 being rotatably connected to the housing 1, a plurality of evenly distributed nozzles 96 fixedly connected to the outer side of the rotating pipe 95, an input pipe 97 rotatably sleeved inside the right end of the rotating pipe 95, the input pipe 97 being fixedly connected to the housing 1, and the input pipe 97 being fixedly connected to the material box 11. By designing the input pipe 97, absorbent can be input into the rotating pipe 95 through the input pipe 97. By designing the desulfurization mechanism 9, the rotational spraying of absorbent can be realized.

[0024] The specific implementation process of this utility model is as follows: During use, flue gas is conveyed into the housing 1 through the connecting seat 2. At the same time, the air compressor 12 works simultaneously. The compressed air can convey the drying absorbent inside the material box 11 into the rotating tube 95 through the input pipe 97. The absorbent will be output through the nozzle 96 and come into contact with the flue gas. The absorbent reacts chemically with sulfur dioxide to generate solid sulfate, thereby achieving the purpose of desulfurization. During the output process of the drying absorbent, the motor 81 works simultaneously. The output end of the motor 81 drives the rotating shaft 82 to rotate, the rotating shaft 82 drives the drive wheel 91 to rotate, the drive wheel 91 drives the belt 92 to rotate, and thus the transmission wheel 93 can be rotated. The transmission wheel 93 can drive the connecting shaft 94 and the rotating tube 95 to rotate, thereby achieving the rotation of the nozzle 96. At this time, the absorbent will be sprayed out by rotation, which can improve the output range and uniformity of the drying absorbent, so that the drying absorbent comes into contact with the flue gas and the desulfurization effect is better.

[0025] Under the action of the sieve plate 4, the absorbent reacts chemically with sulfur dioxide to form solid sulfate, which falls onto the surface of the sieve plate 4 for collection. At the same time, due to the rotation of the rotating shaft 82 driven by the motor 81, the rotating shaft 82 can drive the top block 83 to rotate. The top block 83 can press down on the sieve plate 4, and the sieve plate 4 will slide along the guide rod 84. The sieve plate 4 will squeeze the spring 85. When the top block 83 rotates and separates from the sieve plate 4, it can push the sieve plate 4 upward under the elastic action of the spring 85. This can realize the vertical vibration of the sieve plate 4, which can shake out the material blocked inside the sieve plate 4 and avoid the sieve plate 4 from being blocked and affecting the flue gas passage.

[0026] After the flue gas is desulfurized, the excess absorbent will flow with the gas through the connecting port 5 into the cyclone separator 6, which can separate the gas from the solids. The solids can be returned to the material box 11 through the slag discharge port 10 to realize the recycling of the absorbent.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas circulating fluidized bed dry desulfurization device, comprising a shell (1), characterized in that: The shell (1) is connected to a connecting seat (2) by a thread. A support rod (3) is fixedly connected to the upper end of the connecting seat (2). A sieve plate (4) is slidably adjusted on the outside of the support rod (3). A communication port (5) is fixedly connected to the right end of the shell (1). A cyclone separator (6) is fixedly connected to the right end of the communication port (5). A slag discharge port (10) is provided at the bottom of the cyclone separator (6). A material box (11) is fixedly connected to the right end of the shell (1). The material box (11) stores a drying absorbent, which is limestone. An air compressor (12) is fixedly installed on the right end of the material box (11). A vibration mechanism (8) is provided on the sieve plate (4). A desulfurization mechanism (9) is provided on the shell (1).

2. The flue gas circulating fluidized bed dry desulfurization equipment according to claim 1, characterized in that: A support ring (7) is fixedly sleeved on the outside of the cyclone separator (6), and the support ring (7) is fixedly connected to the shell (1).

3. The flue gas circulating fluidized bed dry desulfurization equipment according to claim 1, characterized in that: The slag discharge port (10) is fixedly connected to the material box (11), and an electromagnetic valve is provided on the slag discharge port (10).

4. The flue gas circulating fluidized bed dry desulfurization equipment according to claim 1, characterized in that: The vibration mechanism (8) includes a motor (81). The motor (81) is fixedly installed on the left end of the housing (1). A rotating shaft (82) is fixedly connected to the right end of the output end of the motor (81). The rotating shaft (82) is rotatably connected to the housing (1). A plurality of evenly distributed top blocks (83) are fixedly connected to the lower end of the rotating shaft (82). The top blocks (83) are in contact with the sieve plate (4). A guide rod (84) is slidably sleeved inside the sieve plate (4). A limit block (86) is fixedly connected to the top of the guide rod (84). A spring (85) is provided on the outside of the guide rod (84). The guide rod (84) is fixedly connected to the connecting seat (2).

5. The flue gas circulating fluidized bed dry desulfurization equipment according to claim 4, characterized in that: One end of the spring (85) is fixedly connected to the sieve plate (4), and the other end of the spring (85) is fixedly connected to the connecting seat (2).

6. The flue gas circulating fluidized bed dry desulfurization equipment according to claim 4, characterized in that: The desulfurization mechanism (9) includes a drive wheel (91), the drive wheel (91) is fixedly sleeved on the outside of the rotating shaft (82), a belt (92) is sleeved on the outside of the drive wheel (91), a transmission wheel (93) is sleeved on the inner side of the other end of the belt (92), a connecting shaft (94) is fixedly connected to the right end of the transmission wheel (93), the connecting shaft (94) is rotatably connected to the housing (1), a rotating tube (95) is fixedly connected to the right end of the connecting shaft (94), the rotating tube (95) is rotatably connected to the housing (1), a plurality of evenly distributed nozzles (96) are fixedly connected to the outside of the rotating tube (95), and an input tube (97) is rotatably sleeved inside the right end of the rotating tube (95).

7. A flue gas circulating fluidized bed dry desulfurization device according to claim 6, characterized in that: The input pipe (97) is fixedly connected to the housing (1), and the input pipe (97) is fixedly connected to the material box (11).

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